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Note: This page contains sample records for the topic "hydrological resistivity influenced" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Influence of woody dominated rangelands on site hydrology and herbaceous production, Edwards Plateau, Texas  

E-Print Network [OSTI]

INFLUENCE OF WOODY DOMINATED RANGELANDS ON SITE HYDROLOGY AND HERBACEOUS PRODUCTION, EDWARDS PLATEAU, TEXAS A Thesis by JUSTIN WAYNE HESTER Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE May 1996 Major Subject: Rangeland Ecology and Management INFLUENCE OF WOODY DOMINATED RANGELANDS ON SITE HYDROLOGY AND HERBACEOUS PRODUCTION, EDWARDS PLATEAU, TEXAS A Thesis by JUSTIN WAYNE HESTER...

Hester, Justin Wayne

1996-01-01T23:59:59.000Z

2

The simulation of natural soil pipes and their influence on catchment hydrology  

E-Print Network [OSTI]

THE SIMULATION OF NATURAL SOIL PIPES AND THEIR INFLUENCE ON CATCHMENT HYDROLOGY A Thesis by MARK DAVID BARCELO Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE December 1982 Major Subject: Agricultural Engineering THE SIMULATION OF NATURAL SOIL PIPES AND THEIR INFLUENCE ON CATCHMENT HYDROLOGY A Thesis by MARK DAVID BARCELO Approved as to style and content by: (Chairman of Committee) (Mem er...

Barcelo, Mark David

2012-06-07T23:59:59.000Z

3

Dynamic Inversion for Hydrological Process Monitoring with Electrical Resistance Tomography Under Model Uncertainty  

SciTech Connect (OSTI)

We propose an approach for imaging the dynamics of complex hydrological processes. The evolution of electrically conductive fluids in porous media is imaged using time-lapse electrical resistance tomography. The related dynamic inversion problem is solved using Bayesian filtering techniques, that is, it is formulated as a sequential state estimation problem in which the target is an evolving posterior probability density of the system state. The dynamical inversion framework is based on the state space representation of the system, which involves the construction of a stochastic evolution model and an observation model. The observation model used in this paper consists of the complete electrode model for ERT, with Archie's law relating saturations to electrical conductivity. The evolution model is an approximate model for simulating flow through partially saturated porous media. Unavoidable modeling and approximation errors in both the observation and evolution models are considered by computing approximate statistics for these errors. These models are then included in the construction of the posterior probability density of the estimated system state. This approximation error method allows the use of approximate - and therefore computationally efficient - observation and evolution models in the Bayesian filtering. We consider a synthetic example and show that the incorporation of an explicit model for the model uncertainties in the state space representation can yield better estimates than a frame-by-frame imaging approach.

Lehikoinen, A.; Huttunen, J.M.J.; Finsterle, S.; Kowalsky, M.B.; Kaipio, J.P.

2009-08-01T23:59:59.000Z

4

DC Resistivity Survey (Mise-A-La-Masse) | Open Energy Information  

Open Energy Info (EERE)

mineral and clay content StratigraphicStructural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size...

5

Influence of samaria doping on the resistance of ceria thin films...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

doping on the resistance of ceria thin films and its implications to the planar oxygen sensing devices. Influence of samaria doping on the resistance of ceria thin films and...

6

The influence of toughening-particles in CFRPs on low velocity impact damage resistance performance  

E-Print Network [OSTI]

The influence of toughening-particles in CFRPs on low velocity impact damage resistance performance.bull@soton.ac.uk Abstract The role of particle-toughening for increasing impact damage resistance in carbon fibre reinforced velocity impacts ranging from 25 J to 50 J to establish the impact damage resistance of each material

7

The influence of changes in water content on the electrical resistivity of a natural unsaturated loess  

E-Print Network [OSTI]

1 The influence of changes in water content on the electrical resistivity of a natural unsaturated these methods, the measurements based on the electrical resistivity are simple and reliable thanks to the clear relationship between the water content and the electrical resistivity of soils. In this work, a new electrical

Paris-Sud XI, Université de

8

Influence of surface roughness and waviness upon thermal contact resistance  

E-Print Network [OSTI]

This work deals with the phenomenon of thermal resistance between contacting solids. Attention is directed towards contiguous solids possessing both surface roughness and waviness. When two such surfaces are brought together ...

Yovanovich, M. Michael

1967-01-01T23:59:59.000Z

9

Triclosan Exposure Increases Triclosan Resistance and Influences Taxonomic Composition of Benthic Bacterial Communities  

Science Journals Connector (OSTI)

Triclosan Exposure Increases Triclosan Resistance and Influences Taxonomic Composition of Benthic Bacterial Communities ... Triclosan (TCS) is a broad-spectrum antimicrobial compound that is incorporated into numerous consumer products. ... Transformation Products and Human Metabolites of Triclocarban and Triclosan in Sewage Sludge Across the United States ...

Bradley Drury; John Scott; Emma J. Rosi-Marshall; John J. Kelly

2013-07-18T23:59:59.000Z

10

DC Resistivity Survey (Dipole-Dipole Array) | Open Energy Information  

Open Energy Info (EERE)

DC Resistivity Survey (Dipole-Dipole Array) DC Resistivity Survey (Dipole-Dipole Array) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: DC Resistivity Survey (Dipole-Dipole Array) Details Activities (1) Areas (1) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Electrical Profiling Configurations Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature

11

Direct-Current Resistivity Survey | Open Energy Information  

Open Energy Info (EERE)

Direct-Current Resistivity Survey Direct-Current Resistivity Survey Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Direct-Current Resistivity Survey Details Activities (65) Areas (34) Regions (4) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Electrical Techniques Information Provided by Technique Lithology: Rock type, mineral and clay content may be inferred. Stratigraphic/Structural: Determination of fracture zones, faults, depth to groundwater aquifers. Hydrological: Resistivity influenced by porosity, permeability, fluid saturation, fluid type and phase state of the pore water. Thermal: Resistivity influenced by temperature.[1] Cost Information

12

The influence of Reynolds numbers on resistance properties of jet pumps  

SciTech Connect (OSTI)

Jet pumps are widely used in thermoacoustic Stirling heat engines and pulse tube cryocoolers to eliminate the effect of Gedeon streaming. The resistance properties of jet pumps are principally influenced by their structures and flow regimes which are always characterized by Reynolds numbers. In this paper, the jet pump of which cross section contracts abruptly is selected as our research subject. Based on linear thermoacoustic theory, a CFD model is built and the oscillating flow of the working gas is simulated and analyzed with different Reynolds numbers in the jet pump. According to the calculations, the influence of different structures and Reynolds numbers on the resistance properties of the jet pump are analyzed and presented. The results show that Reynolds numbers have a great influence on the resistance properties of jet pumps and some empirical formulas which are widely used are unsuitable for oscillating flow with small Reynolds numbers. This paper provides a more comprehensive understanding on resistance properties of jet pumps with oscillating flow and is significant for the design of jet pumps in practical thermoacoustic engines and refrigerators.

Geng, Q. [Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190 (China); Graduate University of Chinese Academy of Sciences, Beijing 100049 (China); Zhou, G. [Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190 (China); Li, Q. [Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190 (China); State Key laboratory of Technologies in Space Cryogenic Propellants, Technical Institute of Physics and Chemistry (China)

2014-01-29T23:59:59.000Z

13

A quantitative evaluation of effective shale content and its influence on electrical resistivity and permeability of reservoir rocks  

E-Print Network [OSTI]

A QUANTITATIVE EVALUATION OF EFFECTIVE SHALE CONTENT AND ITS INFLUENCE ON ELECTRICAL RESISTIVITY AND PERMEABILITY OF RESERVOIR ROCKS A Thesis By PARAYATH E. B. MENON Submitted to the Graduate College of Texas ASM University in Partial... fulfillment of the Requirements for the Degree of MASTER OF SCIENCE January, f965 Major Subject: Petroleum Engineering A QUANTITATIVE EVALUATION OF EFFECTIVE SHALE CONTENT AND ITS INFLUENCE ON ELECTRICAL RESISTIVITY AND PERMEABILITY OF RESERVOIR ROCKS...

Menon, Parayath Eravi Bhaskara

2012-06-07T23:59:59.000Z

14

Abstract --The influence on the thermal resistance of emitter design parameters like emitter area, aspect ratio, and distance to  

E-Print Network [OSTI]

Abstract -- The influence on the thermal resistance of emitter design parameters like emitter area-state) thermal resistance, but also in a faster thermal transient of the transistors. Accurate RC networks are extracted by measurements in order to model the thermal impedance transient of devices with or without Al

Technische Universiteit Delft

15

DC Resistivity Survey (Wenner Array) | Open Energy Information  

Open Energy Info (EERE)

Wenner Array) Wenner Array) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: DC Resistivity Survey (Wenner Array) Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Vertical Electrical Sounding Configurations Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature Dictionary.png

16

DC Resistivity Survey (Pole-Dipole Array) | Open Energy Information  

Open Energy Info (EERE)

Pole-Dipole Array) Pole-Dipole Array) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: DC Resistivity Survey (Pole-Dipole Array) Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Electrical Profiling Configurations Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature Dictionary.png

17

DC Resistivity Survey (Schlumberger Array) | Open Energy Information  

Open Energy Info (EERE)

Schlumberger Array) Schlumberger Array) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: DC Resistivity Survey (Schlumberger Array) Details Activities (2) Areas (2) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Vertical Electrical Sounding Configurations Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature

18

Quasi-three dimensional ground-water modeling of the hydrologic influence of paleozoic rocks on the ground-water table at Yucca Mountain, Nevada  

E-Print Network [OSTI]

The proposed high-level radioactive waste repository site at Yucca Mountain, Nevada, has created a need to understand the, ground-water system at the site. One of the important hydrologic characteristics is a steep gradient on the ground-water table...

Lee, Si-Yong

2012-06-07T23:59:59.000Z

19

DC Resistivity Survey (Mise-Á-La-Masse) | Open Energy Information  

Open Energy Info (EERE)

Mise-Á-La-Masse) Mise-Á-La-Masse) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: DC Resistivity Survey (Mise-Á-La-Masse) Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Electrical Profiling Configurations Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature Dictionary.png

20

2, 605637, 2005 Influence of solar  

E-Print Network [OSTI]

HESSD 2, 605­637, 2005 Influence of solar activity on hydrological processes J. P´erez-Peraza et al Sciences Discussions Influence of solar activity on hydrological processes J. P´erez-Peraza 1 , A. Leyva;HESSD 2, 605­637, 2005 Influence of solar activity on hydrological processes J. P´erez-Peraza et al

Boyer, Edmond

Note: This page contains sample records for the topic "hydrological resistivity influenced" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Glycemic response to tortilla consumption: Influence of physical activity and insulin resistance  

E-Print Network [OSTI]

Insulin resistance (IR) reduces glucose uptake and leads to elevated glucose levels (EGL). Foods that limit postprandial glycemic response (PPGR) and exercising can help limit these EGL. 25 subjects consumed 6 different ...

Fletcher, Justin Andrew

2010-07-26T23:59:59.000Z

22

Influence of Insulin Resistance on Contractile Activity-Induced Anabolic Response of Skeletal Muscle  

E-Print Network [OSTI]

Although the long-term therapeutic benefits of exercise are indisputable, contractile activity may induce divergent adaptations in insulin-resistant vs. insulin-sensitive skeletal muscle. The purpose of this study was to elucidate if the anabolic...

Nilsson, Mats I.

2011-02-22T23:59:59.000Z

23

The quantitative influence of salinity on the apparent resistivity on a physical model upon salination  

SciTech Connect (OSTI)

The excessive exploitation of groundwater aquifers leads to water table drawdown, and subsequently to the contamination of these aquifers by the intrusion of sea water or other hazardous sources. This worldwide environmental problem is becoming increasingly critical in coastal agricultural areas, where the fine grained materials develop a thick fringe zone. By evapo-transpiration the moisture of this zone pumps up the salt in the dry season, which cannot be efficiently washed away in the wet season. The current study investigates the possibility of an early detection of salination, through systematic observation of electrical resistivity in selected positions with fixed electrode arrays. A direct current electrical profiling system of Wenner configuration was tested in the laboratory using a physical model. The model was constructed of wood and plastic tilled with saturated sand and having a constant water flow of 1.6 l/mn. The model size is 148 by 85 cm for lateral dimensions and 25 cm of sand thickness, with a total porosity of 360%. Upon salination the salt was increasingly added to the system to reach a concentration of 32 g/l. Upon desalination salt water was replaced by fresh water to dilute the water in the system to a concentration of 0.25 g/l. The results show that the relationship between salinity and electrical resistivity is inversely proportional and characterized by linear logarithmic function; the velocity of water flow calculated by abrupt resistivity changes is lower than the hydraulic velocity; the resistivity values for low salinity upon desalination are much different (smaller) than those upon salination of equivalent salt concentrations: the relative change of resistivity upon salination and desalination involves almost equally all features of the tank that have distinctive resistivity values.

Khair, K. [American Univ. of Beirut (Lebanon); Skokan, C. [Colorado School of Mines, Golden, CO (United States)

1996-11-01T23:59:59.000Z

24

Influence of alloying elements on corrosion resistance of low alloy steels in marine environment  

SciTech Connect (OSTI)

Most area of the earth is ocean. Therefore, exploitation of marine resources and utilization of marine space rapidly increase in recent years. Most of marine structures, such as wharfs, oil drilling platforms, coastal bridges, airports, etc. are mainly constructed by steel. It is therefore very important to develop marine corrosion resistant steels that do not require protection and are inexpensive. In this study, a series of low alloy steels were prepared by the method of experimental design as well as conventional design to study the effects of alloying elements on the marine corrosion resistance, under consideration of the requirement of mechanical properties. All steels were cyclically dipped to synthetic sea water in the laboratory for 7 weeks or exposed in the Taichung Harbor for more than 4 years. Both test results show similar tendency of the effects of alloying elements, but the effects of fouling on pitting were only observed in the latter. Addition of phosphorus and copper can improve the general corrosion resistance in atmospheric splash zone and titanium has the same effect in sea water. Molybdenum can improve the general corrosion resistance in both splash and tidal zones and pitting resistance in tidal and submerged zones. Due to enrichment of the alloying elements in the rust resulting in development of inner dense rust layer and change of rust composition, the anti-corrosion ability of most designed steels can be enhanced in marine environment. In addition, the corrosion resistance of most tested steels is superior to plain carbon steel (A-36) and weathering steel (Acr-Ten A) in Taichung Harbor.

Wei, F.I. [China Steel Corp., Kaohsiung (Taiwan, Province of China). Steel and Aluminum Research and Development Dept.

1995-09-01T23:59:59.000Z

25

Influence of Heat Treatment on Mercury Cavitation Resistance of Surface Hardened 316LN Stainless Steel  

SciTech Connect (OSTI)

The cavitation-erosion resistance of carburized 316LN stainless steel was significantly degraded but not destroyed by heat treatment in the temperature range 500-800 C. The heat treatments caused rejection of some carbon from the carburized layer into an amorphous film that formed on each specimen surface. Further, the heat treatments encouraged carbide precipitation and reduced hardness within the carburized layer, but the overall change did not reduce surface hardness fully to the level of untreated material. Heat treatments as short as 10 min at 650 C substantially reduced cavitation-erosion resistance in mercury, while heat treatments at 500 and 800 C were found to be somewhat less detrimental. Overall, the results suggest that modest thermal excursions perhaps the result of a weld made at some distance to the carburized material or a brief stress relief treatment will not render the hardened layer completely ineffective but should be avoided to the greatest extent possible.

Pawel, Steven J [ORNL; Hsu, Julia [Massachusetts Institute of Technology (MIT)

2010-11-01T23:59:59.000Z

26

Assessment on the influence of resistive superconducting fault current limiter in VSC-HVDC system  

Science Journals Connector (OSTI)

Abstract Due to fewer risk of commutation failures, harmonic occurrences and reactive power consumptions, Voltage Source Converter (VSC) based HVDC system is known as the optimum solution of HVDC power system for the future power grid. However, the absence of suitable fault protection devices for HVDC system hinders the efficient VSC-HVDC power grid design. In order to enhance the reliability of the VSC-HVDC power grid against the fault current problems, the application of resistive Superconducting Fault Current Limiters (SFCLs) could be considered. Also, \\{SFCLs\\} could be applied to the VSC-HVDC system with integrated AC Power Systems in order to enhance the transient response and the robustness of the system. In this paper, in order to evaluate the role of \\{SFCLs\\} in VSC-HVDC systems and to determine the suitable position of \\{SFCLs\\} in VSC-HVDC power systems integrated with AC power System, a simulation model based on Korea Jeju-Haenam HVDC power system was designed in Matlab Simulink/SimPowerSystems. This designed model was composed of VSC-HVDC system connected with an AC microgrid. Utilizing the designed VSC-HVDC systems, the feasible locations of resistive \\{SFCLs\\} were evaluated when DC line-to-line, DC line-to-ground and three phase AC faults were occurred. Consequently, it was found that the simulation model was effective to evaluate the positive effects of resistive \\{SFCLs\\} for the effective suppression of fault currents in VSC-HVDC systems as well as in integrated AC Systems. Finally, the optimum locations of \\{SFCLs\\} in VSC-HVDC transmission systems were suggested based on the simulation results.

Jong-Geon Lee; Umer Amir Khan; Jae-Sang Hwang; Jae-Kyu Seong; Woo-Ju Shin; Byung-Bae Park; Bang-Wook Lee

2014-01-01T23:59:59.000Z

27

Monitoring Surface Hydrologic Processes by Using Airborne Multispectral and  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Monitoring Surface Hydrologic Processes Monitoring Surface Hydrologic Processes EVS is developing a reliable, cost-effective, repeatable method for long-term, utility-scale environmental monitoring in arid environments. Environmental monitoring is one of the primary means to ensure that impacts associated with renewable energy development are minimized. One critical aspect of water resources monitoring is the study of surface hydrologic processes - flow conveyance, sediment transport, and groundwater recharge - associated with intermittent and ephemeral streams. Surface hydrology plays an important role in local ecosystems and water availability for human use, which is particularly critical for arid environments. Knowledge about ephemeral streams is the key to understanding the hydrologic cycle and how it influences the abundance and distribution

28

Resistance of biofilm-covered mortars to microbiologically influenced deterioration simulated by sulfuric acid exposure  

SciTech Connect (OSTI)

Following the reported success of biofilm applications on metal surfaces to inhibit microbiologically influenced corrosion, effectiveness and sustainability of E. coli DH5? biofilm on mortar surface to prevent microbiologically influenced concrete deterioration (MICD) are investigated. Experiments simulating microbial attack were carried out by exposing incrementally biofilm-covered mortar specimens to sulfuric acid solutions with pH ranging from 3 to 6. Results showed that calcium concentration in control reactors without biofilm was 2347% higher than the reactors with biofilm-covered mortar. Formation of amorphous silica gel as an indication of early stages of acid attack was observed only on the control mortar specimens without biofilm. During acidification, the biofilm continued to grow and its thickness almost doubled from ? 30 ?m before acidification to ? 60 ?m after acidification. These results demonstrated that E. coli DH5? biofilm was able to provide a protective and sustainable barrier on mortar surfaces against medium to strong sulfuric acid attack. -- Highlights: Effectiveness of E.coli DH5? biofilm to prevent MICD was studied. Conditions that lead to MICD were simulated by chemical acidification. Biofilm-covered mortar specimens were exposed to sulfuric acid solutions. The presence of biofilm helped reduce the chemically-induced mortar deterioration. Biofilm remained alive and continued to grow during the acidification process.

Soleimani, Sahar, E-mail: ssoleima@connect.carleton.ca; Isgor, O. Burkan, E-mail: burkan_isgor@carleton.ca; Ormeci, Banu, E-mail: banu_ormeci@carleton.ca

2013-11-15T23:59:59.000Z

29

Hydrological/Geological Studies  

Office of Legacy Management (LM)

.\ .8.2 .\ .8.2 Hydrological/Geological Studies Book 1. Radiochemical Analyses of Water Samples from SelectedT" Streams Wells, Springs and Precipitation Collected During Re-Entry Drilling, Project Rulison-7, 197 1 HGS 8 This page intentionally left blank . . . ... . . . . . . . . , : . . . . . . . . . ' . r - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . ..... . - x ..:; . , ' , . . ' . . . . . . !' r:.::. _. . : _ . . : . . . . \ . . ' - \ , : , . . . . . . . . . . . . . il.'; , . . y,.:.: . . . . . . . . ., ' . . ' . , . . . . . . . . . - . . . . . ... . . . . . : . . - . . . . . . . . . . . . . . . . . . . . . . .,. . . . . . . . .. 2 . . . . . . . . . . . ..... . . . . . . . . . . . . , .- , . : , . , . . . . ......... ... ) . . i - . . . . . . . . . . . . . . . . . . Prepared. Under . . . ~ ~ r e e m e n t - No. AT(29-2) -474 for the ~ e v a d a - - Operations Office U. S .. Atomic. ,Energy Commi~ssion

30

Desiccation resistance and root growth rate of St. Augustinegrass (Stenotaphrum secundatum (Walt.) Kuntze 'Floratam') as influenced by potassium  

E-Print Network [OSTI]

The influence of potassium on the mean visual turfgrass quality rating of previously stressed and watered St. Augustinegrass turfs during the 12 day period of recovery from water stress. 58 12. The influence of previous water regime treat- ment on the root.... . . . . . . . . 100 22 The influence of previous water regime of the visual turfgrass quality ratings of St. Augustinegrass maintained in the greenhouse 104 23. The influence of previous water stress on the clipping dry weights obtained from St. Augustinegrass...

DiPaola, J. M

2012-06-07T23:59:59.000Z

31

HYDROLOGICAL PROCESSES Hydrol. Process. (2011)  

E-Print Network [OSTI]

HYDROLOGICAL PROCESSES Hydrol. Process. (2011) Published online in Wiley Online Library (wileyonlinelibrary.com). DOI: 10.1002/hyp.8056 Hydrological principles for sustainable management of forest of the cleanest and most plentiful freshwater supplies, sustaining many downstream communities. Given the ongoing

32

Integrated Biogeochemical and Hydrologic Processes Driving Arsenic...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Biogeochemical and Hydrologic Processes Driving Arsenic Release from Shallow Sediments to Groundwaters of the Mekong Integrated Biogeochemical and Hydrologic Processes Driving...

33

The dynamic influence of the DRB1*1101 allele on the resistance of sheep to experimental Teladorsagia circumcincta infection  

E-Print Network [OSTI]

Suffolk sheep carrying the DRB1*1101 (previously referred to as-DRB1*0203 or G2) allele have been reported to show increased resistance to natural Teladorsagia circumcincta infection compared to non-carriers. The objective ...

Hassan, Musa A.

34

Influence of genetic background, races of the pathogen and plant parts on evaluation of resistance to bacterial blight of cotton  

E-Print Network [OSTI]

system for evaluating resistance as given by Bird and Hadley (3). 50 20. 21. 22. Grading system developed for evaluating stem and boll resistance to bacterial blight, . . . . . . . , . . . . . . . . . 51 Frequency distributions of disease grades.... The 84 gene was additive in its effects with 82 and 83. The immunity of Multani cotton (G. arboreum) to bacterial blight was shown to depend on the B4 gene, accompanied by a strong complex of minor genes designated 85m (24). The BBm complex...

Pool, William Larry

2012-06-07T23:59:59.000Z

35

Single-Well and Cross-Well Resistivity | Open Energy Information  

Open Energy Info (EERE)

Single-Well and Cross-Well Resistivity Single-Well and Cross-Well Resistivity Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Single-Well and Cross-Well Resistivity Details Activities (14) Areas (13) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Downhole Techniques Exploration Sub Group: Well Log Techniques Parent Exploration Technique: Well Log Techniques Information Provided by Technique Lithology: Identify different lithological layers, rock composition, mineral, and clay content Stratigraphic/Structural: -Fault and fracture identification -Rock texture, porosity, and stress analysis -determine dip and structural features in vicinity of borehole -Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water

36

Thermal-Hydrological Sensitivity Analysis of Underground Coal Gasification  

SciTech Connect (OSTI)

This paper presents recent work from an ongoing project at Lawrence Livermore National Laboratory (LLNL) to develop a set of predictive tools for cavity/combustion-zone growth and to gain quantitative understanding of the processes and conditions (natural and engineered) affecting underground coal gasification (UCG). We discuss the application of coupled thermal-hydrologic simulation capabilities required for predicting UCG cavity growth, as well as for predicting potential environmental consequences of UCG operations. Simulation of UCG cavity evolution involves coupled thermal-hydrological-chemical-mechanical (THCM) processes in the host coal and adjoining rockmass (cap and bedrock). To represent these processes, the NUFT (Nonisothermal Unsaturated-saturated Flow and Transport) code is being customized to address the influence of coal combustion on the heating of the host coal and adjoining rock mass, and the resulting thermal-hydrological response in the host coal/rock. As described in a companion paper (Morris et al. 2009), the ability to model the influence of mechanical processes (spallation and cavity collapse) on UCG cavity evolution is being developed at LLNL with the use of the LDEC (Livermore Distinct Element Code) code. A methodology is also being developed (Morris et al. 2009) to interface the results of the NUFT and LDEC codes to simulate the interaction of mechanical and thermal-hydrological behavior in the host coal/rock, which influences UCG cavity growth. Conditions in the UCG cavity and combustion zone are strongly influenced by water influx, which is controlled by permeability of the host coal/rock and the difference between hydrostatic and cavity pressure. In this paper, we focus on thermal-hydrological processes, examining the relationship between combustion-driven heat generation, convective and conductive heat flow, and water influx, and examine how the thermal and hydrologic properties of the host coal/rock influence those relationships. Specifically, we conducted a parameter sensitivity analysis of the influence of thermal and hydrological properties of the host coal, caprock, and bedrock on cavity temperature and steam production.

Buscheck, T A; Hao, Y; Morris, J P; Burton, E A

2009-10-05T23:59:59.000Z

37

Unsaturated Zone Hydrology Jasper Vrugt  

E-Print Network [OSTI]

CEE 271 Unsaturated Zone Hydrology Instructor Jasper Vrugt Engineering Tower #834E / #536 (LAB) Tel.: 505-231-2698 jasper @uci.edu Office Hours: By Appointment Lecture, 1 hour; discussion, 20 minutes: ICS

Vrugt, Jasper A.

38

Influence of different illumination profiles on the on-state resistances of silicon carbide photoconductive semiconductor switches  

SciTech Connect (OSTI)

Characteristics of a silicon-carbide (SiC) photoconductive switch under different illumination profiles are presented. We triggered a V-doped semi-insulated 6H-SiC switch with lateral geometry using a laser beam of 532-nm wavelength. Photoconductivity tests for different spot profiles and locations show that such switches achieve a minimum on-state resistance when the switching gap is illuminated. The differences between on-state resistances are small for various partial illuminations of the switching gap. Semiconductor modeling is used to simulate the electric field and current profiles for different partial illuminations. The simulation results show poor on-state switch performance when partially illuminated. Based on these results, a more revealing circuit model for the switch matches well with experimental results for partial illuminations.

Wang, Langning, E-mail: wanglangning@126.com; Xun, Tao; Yang, Hanwu; Liu, Jinliang; Zhang, Yu [College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha 410073 (China)] [College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha 410073 (China)

2014-04-15T23:59:59.000Z

39

Air-Side and Plant-Side Resistances Influence the Uptake of Airborne PCBs by Evergreen Plants  

Science Journals Connector (OSTI)

The transfer of persistent organic pollutants (POPs) from air to vegetation is an important air-surface exchange process that affects global cycling and can result in human and wildlife exposure via the terrestrial food chain. ... One hypothesis is that wind speed may be an important variable between sites (17, 21), because the rate of supply from the bulk air and diffusion through the thinner atmospheric boundary layer would be more rapid at windier locations, for example (8, 17). ... This study supports the earlier work by McLachlan and co-workers (4) by showing that air-side resistance limits the uptake of gas-phase POPs under still-air conditions, although our results show that plant-side resistance can also be important under natural (windy) conditions. ...

Jonathan L. Barber; Gareth O. Thomas; Gerhard Kerstiens; Kevin C. Jones

2002-06-22T23:59:59.000Z

40

Analysis of the influence of the normal zone propagation velocity on the design of resistive fault current limiters  

Science Journals Connector (OSTI)

Commercial high-temperature superconducting coated conductors (HTS-CCs) have low thermal diffusivity and nonuniform critical current density. These two factors lead commercial HTS-CCs to a partial quench when they are subjected to a transport current around their average critical current (). The consequence is the appearance of localized resistive zones, and a high risk of thermal runaway can arise when HTS-CCs are used for resistive fault current limiter (RFCL) purposes. The enhancement of the normal zone propagation velocity (NZPV) of HTS-CCs is a desirable solution for achieving sufficient thermal stability while keeping the cost of RFCLs under an acceptable threshold. Even though in recent years, several valid methods to increase the NZPV have been proposed, their impact on the design of RFCLs is not clear. For this reason, we developed a one-dimensional numerical model that enables us to simulate HTS-CCs with enhanced NZPV and to study the limitation performance of a HTS-CC-based RFCL in real operating conditions. Our preliminary re sults demonstrate that the NZPV enhancement can effectively limit the needed amount of HTS-CCs with important economic benefits for the design of RFCLs.

Daniele Colangelo; Bertrand Dutoit

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydrological resistivity influenced" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

On the structurization of coal dust precipitations and their influence on aerodynamic resistance by granulated mediums in air filters at nuclear power plants  

E-Print Network [OSTI]

The processes of structurization of dust precipitations in granulated filtering mediums, formed by the monolithic glass spherical granules with the diameters of 2mm and 3mm, are re-searched. The distinctions between the distributions of filtered coal dust masses in the air filters with cylindrical granules and the air filters with spherical granules, are found. The influences by the filtered dust masses on the air resistance of both the air filters with the cylindrical granules and the air filters with the spherical granules are described. The conclusions on a possibility of the use of various chemical adsorbents with different geometric forms and volumetric dimensions to improve the filtering properties of granulated filtering mediums in air filters at nuclear power plants are formulated.

Neklyudov, I M; Fedorova, L I; Poltinin, P Ya

2012-01-01T23:59:59.000Z

42

On the structurization of coal dust precipitations and their influence on aerodynamic resistance by granulated mediums in air filters at nuclear power plants  

E-Print Network [OSTI]

The processes of structurization of dust precipitations in granulated filtering mediums, formed by the monolithic glass spherical granules with the diameters of 2mm and 3mm, are re-searched. The distinctions between the distributions of filtered coal dust masses in the air filters with cylindrical granules and the air filters with spherical granules, are found. The influences by the filtered dust masses on the air resistance of both the air filters with the cylindrical granules and the air filters with the spherical granules are described. The conclusions on a possibility of the use of various chemical adsorbents with different geometric forms and volumetric dimensions to improve the filtering properties of granulated filtering mediums in air filters at nuclear power plants are formulated.

I. M. Neklyudov; O. P. Ledenyov; L. I. Fedorova; P. Ya. Poltinin

2012-07-02T23:59:59.000Z

43

HYDROLOGICAL PROCESSES Hydrol. Process. (2010)  

E-Print Network [OSTI]

Eugster2 and Reto Burkard3 1 Water Resources, US Geological Survey, Reston, VA, USA 2 Institute of Plant the fog water inputs to ecosystems. In addition, stable isotopes may be used as a natural tracer for fog unresolved questions as to how cloud-affected ecosystems actually function hydrologically (Bruijnzeel 2001

44

Wetland Hydrology! 1. Water sources!  

E-Print Network [OSTI]

to Flooding). #12;2. Where do wetlands occur?! Poorly drained sites! Groundwater sites: ! receive! Dominated by herbaceous vegetation.! Tidal (above, with egrets)! Non-tidal (Colorado)! #12;Riparian;Wetland Hydrology and Flood Control?! Do wetlands offer flood control benefits?! Yes, in the sense

Gray, Matthew

45

Influence of a d.c. substrate bias on the resistivity, composition, crystallite size and microstrain of \\{WTi\\} and WTi-N films  

Science Journals Connector (OSTI)

The influence of a d.c. substrate bias on the properties of \\{WTi\\} and WTi-N films deposited by r.f. magnetron sputtering has been studied. The bias voltage was varied from 0 to ?200 V. The \\{WTi\\} films structure is b.c.c. W with the presence of the h.c.p. Ti phase at low bias (0 to ?50 V). For the WTi-N films, the structure is f.c.c. TiN at low bias and b.c.c. W + f.c.c. TiN at high bias (?100 V to ?200 V). Both films exhibit the columnar morphology. The titanium fraction in the films is lower than in the target and decreases when the bias increases owing to a titanium preferential resputtering caused by the ion bombardment of the substrate. The same behaviour is found for the film resistivity which diminishes when the bias is increased whereas the crystallite size increases. The microstrains have a more complex variation with the bias.

H. Ramarotafika; G. Lemperiere

1995-01-01T23:59:59.000Z

46

Hydrologic Monitoring Summary Long Valley Caldera, California...  

Open Energy Info (EERE)

Caldera, California Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Hydrologic Monitoring Summary Long Valley Caldera, California Abstract Abstract...

47

Coupled Thermal-Hydrological-Mechanical Processes in Salt, Hot...  

Office of Environmental Management (EM)

Coupled Thermal-Hydrological-Mechanical Processes in Salt, Hot Granular Salt Consolidation, Constitutive Model and Micromechanics Coupled Thermal-Hydrological-Mechanical Processes...

48

Development of Advanced Thermal-Hydrological-Mechanical-Chemical...  

Broader source: Energy.gov (indexed) [DOE]

Development of Advanced Thermal-Hydrological-Mechanical-Chemical (THMC) Modeling Capabilities for Enhanced Geothermal Systems Development of Advanced Thermal-Hydrological-Mechanica...

49

Hydrology Group - UNSAT-H  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

H H Recharge Estimation UNSAT-H is a FORTRAN computer code used to simulate the one-dimensional flow of water, vapor, and heat in soils. The code addresses the processes of precipitation, evaporation, plant transpiration, storage, and deep drainage. The UNSAT-H computer code is used to understand the movement of water, heat, and vapor in soils so better decisions can be made about land use, waste disposal, and climate change. Example Tests and Typical Applications include studies of the water balance behavior of surface covers over shallow land burial waste sites and studies of land disturbance effects on recharge rates. The UNSAT-H computer code is managed by the Hydrology Group at the Pacific Northwest National Laboratory (PNNL). PNNL is a U.S. Department of Energy

50

Resistivity Tomography | Open Energy Information  

Open Energy Info (EERE)

Resistivity Tomography Resistivity Tomography Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Resistivity Tomography Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Downhole Techniques Exploration Sub Group: Well Log Techniques Parent Exploration Technique: Resistivity Log Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Cost Information Low-End Estimate (USD): 60.986,098 centUSD 0.061 kUSD 6.098e-5 MUSD 6.098e-8 TUSD / foot Median Estimate (USD): 76.227,622 centUSD 0.0762 kUSD 7.622e-5 MUSD 7.622e-8 TUSD / foot High-End Estimate (USD): 106.7110,671 centUSD 0.107 kUSD 1.0671e-4 MUSD 1.0671e-7 TUSD / foot Time Required Low-End Estimate: 1 days0.00274 years

51

RESEARCH ARTICLE Open Access Influence of hydrological conditions on the  

E-Print Network [OSTI]

by fecal bacteria from (i) point source pollution, e.g., treated effluents from wastewater treatments population structure in the water of a creek on a rural watershed Mehdy Ratajczak1* , Emilie Laroche1 of a creek on a small rural watershed in France composed of pasture and with human occupation. Results

Paris-Sud XI, Université de

52

Probable hydrologic effects of subsurface mining  

SciTech Connect (OSTI)

This case history provides information on the ground-water system and presents the results of an analysis of present and future hydrologic effects of coal mining in the Appalachian coal basin. Although emphasis is on the probable hydrologic effects due to subsurface mining, examples and discussions are equally applicable to surface mine problems. The case history is based on an ongoing study in Greene County which will be completed in 1983. Cooperators in this project were the Pennsylvania Geologic and Topographic Survey and the Greene County Commissioners. The study stemmed from local interest in the rural water supply of the county which is predominantly groundwater.

Stoner, J.D.

1983-01-01T23:59:59.000Z

53

Results of Detailed Hydrologic Characterization Tests - Fiscal Year 2003  

SciTech Connect (OSTI)

This report presents results obtained from detailed hydrologic characterization of the unconfined aquifer system conducted at the Hanford Site.

Spane, Frank A.; Newcomer, Darrell R.

2004-09-13T23:59:59.000Z

54

MOSAICO, a library for raster based hydrological applications  

Science Journals Connector (OSTI)

This paper presents MOSAICO, a set of Fortran 90 Modules for facilitating development of raster based hydrological applications and stimulating adoption of netCDF as a common format for sharing and comparing data among hydrological community. MOSAICO ... Keywords: Fortran 90, NetCDF, Raster based hydrological model

Giovanni Ravazzani

2013-02-01T23:59:59.000Z

55

HYDROLOGICAL PROCESSES Hydrol. Process. 23, 13371348 (2009)  

E-Print Network [OSTI]

HYDROLOGICAL PROCESSES Hydrol. Process. 23, 1337­1348 (2009) Published online 4 February 2009-Ecosystem in Fengqiu, State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese- Ecosystem in Fengqiu, State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science

Flury, Markus

56

Puna Geothermal Venture Hydrologic Monitoring Program  

SciTech Connect (OSTI)

This document provides the basis for the Hydrologic Monitoring Program (HMP) for the Puna Geothermal Venture. The HMP is complementary to two additional environmental compliance monitoring programs also being submitted by Puma Geothermal Venture (PGV) for their proposed activities at the site. The other two programs are the Meteorology and Air Quality Monitoring Program (MAQMP) and the Noise Monitoring Program (NMP), being submitted concurrently.

None

1990-04-01T23:59:59.000Z

57

Geophysical Monitoring of Hydrological and Biogeochemical  

E-Print Network [OSTI]

explored the use of geophysical approaches for monitoring the spatiotemporal distribution of hydrological and biogeochemical transformations associated with a Cr(VI) bioremediation experiment performed at Hanford, WA. We: the spatial distribution of injected electron donor; the evolution of gas bubbles; variations in total

Hubbard, Susan

58

Effects of alien and intraspecies cytoplasms on manifestation of nuclear genes for wheat resistance to brown rust: II. Specificity of cytoplasm influence on different Lr genes  

SciTech Connect (OSTI)

Specificity of expression of the major nuclear genes Lr to two brown rust clones in hybrids with the same maternal cytoplasm was analyzed. It was evaluated by a resistant: susceptible ratio in the F{sub 2}. Reciprocal hybrids were obtained from the cross between the progeny of homozygous susceptible plants of the cultivar Penjamo 62 and its alloplasmatic lines carrying cytoplasms of Triticum dicoccoides var. fulvovillosum, Aegilops squarrosa var. typical, Agropyron trichophorum, and isogenic lines of the cultivar Thatcher (Th) with the Lr1, Lr9, Lr15, and Lr19 genes. It was shown that the effect of the Lr1 gene in the cytoplasm of cultivar Thatcher and in eu-, and alloplasmatic forms of Penjamo 62 was less expressed than that of other Lr genes. Cytoplasm of the alloplasmatic line (dicoccoides)-Penjamo 62 was the only exception: in the F{sub 2}, hybrids with Th (Lr1) had a higher yield of resistant forms than those with Th (Lr15). In the hybrid combinations studied, expression and/or transmission of the Lr19 gene was more significant than that of other genes. This gene had no advantages over Lr15 and Lr19 only in cytoplasm of the alloplasmatic line (squarrosa)-Penjamo 62. In certain hybrid cytoplasms, the display of the Lr1, Lr15, and Lr19 genes, in contrast to Lr9, varied with the virulence of the pathogen clones. 15 refs., 5 tabs.

Voluevich, E.A.; Buloichik, A.A.; Palilova, A.N. [Institute of Genetics and Cytology, Minsk (Belarus)

1995-04-01T23:59:59.000Z

59

Influence of carbon content on the copper-telluride phase formation and on the resistive switching behavior of carbon alloyed Cu-Te conductive bridge random access memory cells  

SciTech Connect (OSTI)

In this paper, we investigate the influence of the carbon content on the Cu-Te phase formation and on the resistive switching behavior in carbon alloyed Cu{sub 0.6}Te{sub 0.4} based conductive bridge random access memory (CBRAM) cells. Carbon alloying of copper-tellurium inhibits the crystallization, while attractive switching behavior is preserved when using the material as Cu-supply layer in CBRAM cells. The phase formation is first investigated in a combinatorial way. With increasing carbon content, an enlargement of the temperature window in which the material stays amorphous was observed. Moreover, if crystalline phases are formed, subsequent phase transformations are inhibited. The electrical switching behavior of memory cells with different carbon contents is then investigated by implementing them in 580??m diameter dot TiN/Cu{sub 0.6}Te{sub 0.4}-C/Al{sub 2}O{sub 3}/Si memory cells. Reliable switching behavior is observed for carbon contents up to 40at.%, with a resistive window of more than 2 orders of magnitude, whereas for 50at.% carbon, a higher current in the off state and only a small resistive window are present after repeated cycling. This degradation can be ascribed to the higher thermal and lower drift contribution to the reset operation due to a lower Cu affinity towards the supply layer, leading cycle-after-cycle to an increasing amount of Cu in the switching layer, which contributes to the current. The thermal diffusion of Cu into Al{sub 2}O{sub 3} under annealing also gives an indication of the Cu affinity of the source layer. Time of flight secondary ion mass spectroscopy was used to investigate this migration depth in Al{sub 2}O{sub 3} before and after annealing, showing a higher Cu, Te, and C migration for high carbon contents.

Devulder, Wouter, E-mail: Wouter.Devulder@UGent.be; De Schutter, Bob; Detavernier, Christophe [Department of Solid State Sciences, Universiteit Gent, Krijgslaan 281 (S1), 9000 Gent (Belgium); Opsomer, Karl; Franquet, Alexis; Meersschaut, Johan; Muller, Robert; Van Elshocht, Sven; Jurczak, Malgorzata; Goux, Ludovic [IMEC, Kapeldreef 75, 3001 Leuven (Belgium); Belmonte, Attilio [IMEC, Kapeldreef 75, 3001 Leuven (Belgium); KU Leuven, Department of Physics and Astronomy, Celestijnenlaan 200D, 3001 Leuven (Belgium)

2014-02-07T23:59:59.000Z

60

Influence of the lanthanum deficit on electrical resistivity and heat capacity of silver-doped lanthanum manganites La{sub 1-x}Ag{sub y}MnO{sub 3}  

SciTech Connect (OSTI)

The electrical resistivity and heat capacity of the silver-doped lanthanum manganites La{sub 0.80}Ag{sub 0.15}MnO{sub 3} and La{sub 0.85}Ag{sub 0.15}MnO{sub 3} have been investigated. Despite the nonstoichiometry of the composition, the La{sub 0.80}Ag{sub 0.15}MnO{sub 3} manganite exhibits a bulk homogeneity and better physical properties from the applied point of view as compared to the La{sub 0.85}Ag{sub 0.15}MnO{sub 3} manganite, viz., the former compound has a higher spontaneous magnetoresistance and a larger jump of the heat capacity with a small width of the phase transition, and the anomalies of the heat capacity and electrical resistivity in the vicinity of the Curie point of this compound agree with the fluctuation nature of the second-order phase transition. The behavior of the properties of lanthanum-deficient manganites under investigation in the region of the phase transition is consistent with the classical theory of indirect exchange interaction. The behavior of the temperature dependence of the electrical resistivity has been analyzed in terms of two models. One of these models is based on the tunneling of charge carriers between ferrons or polarons, and the other model is based on the polaron hopping conduction. Both approaches lead to consistent results, and their combination has made it possible to estimate the tunneling distance of charge carriers. The origin of the influence of technological parameters characterizing the synthesis of La{sub 1-x}Ag{sub y}MnO{sub 3} ceramic materials on their physical properties has been elucidated.

Abdulvagidov, Sh. B., E-mail: abdulvagidov@iwt.ru; Gamzatov, A. G. [Russian Academy of Sciences, Amirkhanov Institute of Physics, Dagestan Scientific Center (Russian Federation); Mel'nikov, O. V.; Gorbenko, O. Yu. [Moscow State University (Russian Federation)

2009-12-15T23:59:59.000Z

Note: This page contains sample records for the topic "hydrological resistivity influenced" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Insulation Resistance  

Science Journals Connector (OSTI)

n...(1) The electrical resistance between two conductors or systems of conductors separated only by an insulating material. The resistance of a particular insulation may be measured by dividing the v...

Jan W. Gooch

2011-01-01T23:59:59.000Z

62

Insulation resistance  

Science Journals Connector (OSTI)

n....(1) The electrical resistance between two conductors or systems of conductors separated only by an insulating material. The resistance of a particular insulation may be measured by dividing the ...

2007-01-01T23:59:59.000Z

63

Electrical resistivity mechanism in magnetorheological elastomer  

E-Print Network [OSTI]

Electrical resistivity mechanism in magnetorheological elastomer N Kchit, G Bossis L.P.M.C. UMR properties such as a large change of electrical resistivity with applied pressure. In order to understand the conduction mechanism in such composite, the influence of pressure on the electrical resistivity of metal

Paris-Sud XI, Université de

64

Variation and correlation of hydrologic properties  

SciTech Connect (OSTI)

Hydrological properties vary within a given geological formation and even more so among different soil and rock media. The variance of the saturated permeability is shown to be related to the variance of the pore-size distribution index of a given medium by a simple equation. This relationship is deduced by comparison of the data from Yucca Mountain, Nevada (Peters et al., 1984), Las Cruces, New Mexico (Wierenga et al., 1989), and Apache Leap, Arizona (Rasmussen et al., 1990). These and other studies in different soils and rocks also support the Poiseuille-Carmen relationship between the mean value of saturated permeability and the mean value of capillary radius. Correlations of the mean values and variances between permeability and pore-geometry parameters can lead us to better quantification of heterogeneous flow fields and better understanding of the scaling laws of hydrological properties.

Wang, J.S.Y. [Lawrence Berkeley Lab., CA (United States)

1991-06-01T23:59:59.000Z

65

Test plan: Hydraulic fracturing and hydrologic tests in Marker Beds 139 and 140  

SciTech Connect (OSTI)

Combined hydraulic fracturing and hydrological measurements in this test plan are designed to evaluate the potential influence of fracture formation in anhydrite Marker Beds 139 and 140 on gas pressure in and gas flow from the disposal rooms in the Waste Isolation Pilot Plant with time. The tests have the further purpose of providing comparisons of permeabilities of anhydrite interbeds in an undisturbed (virgin) state and after fracture development and/or opening and dilation of preexisting partially healed fractures. Three sets of combined hydraulic fracturing and hydrological measurements are planned. A set of trial measurements is expected to last four to six weeks. The duration of each subsequent experiment is anticipated to be six to eight weeks.

Wawersik, W.R.; Beauheim, R.L.

1991-03-01T23:59:59.000Z

66

Fracture and hydrology data from field studies at Stripa, Sweden  

SciTech Connect (OSTI)

The purpose of this report is to present the basic fracture and hydrology data collected as part of the joint LBL-KBS fracture hydrology program at Stripa, Sweden. A detailed description of the fracture-core logging and hydrology borehole testing procedures is included as well as a description of how the fracture and hydrology data were coded and organized. Based on this coding a series of computer data files for the fracture and hydrology borehole data have been constructed and these are described in detail. The fracture data file for one borehole is presented as an example in an appendix along with all of the raw and some partially processed and analyzed fracture hydrology data files. A detailed description of how this data will be analyzed to develop a thorough understanding of the fracture system and hydrogeologic characteristics of the Stripa site is presented.

Gale, J.E.

1981-04-01T23:59:59.000Z

67

Hydrologic studies for the Waste Isolation Pilot Plant  

SciTech Connect (OSTI)

The objective of this paper is to provide a general overview of hydrologic conditions at the Waste Isolation Pilot Plant (WIPP) by describing several key hydrologic studies that have been carried out as part of the site characterization program over the last 20 years. The paper is composed of three parts: background information about general objectives of the WIPP project; information about the geologic and hydrologic setting of the facility; and information about three aspects of the hydrologic system that are important to understanding the long-term performance of the WIPP facility. For additional detailed information, the reader is referred to the references cited in the text.

Davies, P.B.

1994-07-01T23:59:59.000Z

68

Models for Hydrologic Design of Evapotranspiration Landfill Covers  

Science Journals Connector (OSTI)

Models for Hydrologic Design of Evapotranspiration Landfill Covers ... The focus of the HELP model is on the man-made features of landfills. ...

Victor L. Hauser; Dianna M. Gimon; James V. Bonta; Terry A. Howell; Robert W. Malone; Jimmy R. Williams

2005-08-05T23:59:59.000Z

69

Nonlinear dependence and extremes in hydrology and climate.  

E-Print Network [OSTI]

??The presence of nonlinear dependence and chaos has strong implications for predictive modeling and the analysis of dominant processes in hydrology and climate. Analysis of (more)

Khan, Shiraj

2007-01-01T23:59:59.000Z

70

Anomalous atmospheric hydrologic processes associated with ENSO  

SciTech Connect (OSTI)

In this paper, we study the structure of anomalous atmospheric hydrologic processes associated with El Nino Southern Oscillation (ENSO) using re-analysis data obtained from the Goddard Earth Observing System (GEOS) Data Assimilation Office (DAO) and outputs from GEOS climate model simulations. Our results show a very pronounced tropospheric warming over the equatorial central Pacific, with a double maxima located in 15{degrees}N and 15{degrees}/S, symmetric about the equator. This anomaly is in agreement with those found in earlier studies based on satellite estimates and is consistent with the predictions of Rossby wave dynamics. Most interestingly, we find a strong stratospheric temperature signal, which is tightly coupled to, but of opposite sign to the tropospheric anomaly. This temperature anomaly pattern is validated by the GCM simulations with respect to anomalous ENSO sea surface temperature (SST) forcing. The role of interaction between radiation and hydrologic cycle in producing and maintaining the ENSO anomalies is also investigated. 8 refs., 4 figs.

Lau, K.M.; Ho, C.H. [NASA/Goddard Space Flight Center, Greenbelt, MD (United States)

1997-11-01T23:59:59.000Z

71

Incorporation of groundwater losses and well level data in rainfall-runoff models illustrated using the PDM Hydrology and Earth System Sciences, 6(1), 2538 (2002) EGS  

E-Print Network [OSTI]

groundwater storage under the influence of pumped abstractions, spring flows and underflows. This model the PDM 25 Hydrology and Earth System Sciences, 6(1), 25­38 (2002) © EGS Incorporation of groundwater there are pumped abstractions to water supply. Many rainfall-runoff models are not formulated so as to represent

Boyer, Edmond

72

MODELING OF THERMALLY DRIVEN HYDROLOGICAL PROCESSES IN PARTIALLY  

E-Print Network [OSTI]

) incorporation of a full set of thermal-hydrological processes into a numerical simulator, (2) realistic AND BACKGROUND [2] The containment of spent fuel from nuclear power plants in a geological repositoryMODELING OF THERMALLY DRIVEN HYDROLOGICAL PROCESSES IN PARTIALLY SATURATED FRACTURED ROCK Y. W

Jellinek, Mark

73

Baseline Hydrologic Studies in the Lower Elwha River Prior to  

E-Print Network [OSTI]

After the removal of two large, longstanding dams on the Elwha River, Washington, the additional loadChapter 4 4 Chapter Baseline Hydrologic Studies in the Lower Elwha River Prior to Dam Removal characteristics of the river and estuary before dam removal, several hydrologic data sets were collected

74

South Florida Hydrologic Society Rick Nevulis P.G.  

E-Print Network [OSTI]

South Florida Hydrologic Society Presents Rick Nevulis P.G. South Florida Water Management District Reuse Coordinator Don't Judge Water by its History, but by its Quality: Reclaimed Water, a Valuable.johnson@mwhglobal.com The South Florida Hydrologic Society (SFHS) is a non-profit, professional society, established to provide

Sukop, Mike

75

Hydrologic conditions controlling runoff generation immediately after wildfire  

E-Print Network [OSTI]

Hydrologic conditions controlling runoff generation immediately after wildfire Brian A. Ebel,1 John and hydraulic properties of soil, hydrologic states, and an ash layer immediately following wildfire. The field site is within the area burned by the 2010 Fourmile Canyon Fire in Colorado, USA. Physical

76

Comparative Study on the Sulfur Tolerance and Carbon Resistance...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and Carbon Resistance of Supported Noble Metal Catalysts in Steam Reforming of Liquid Abstract: This work was conducted to clarify the influence of the type of metal and...

77

Regional hydrology of the Dixie Valley geothermal field, Nevada-  

Open Energy Info (EERE)

hydrology of the Dixie Valley geothermal field, Nevada- hydrology of the Dixie Valley geothermal field, Nevada- Preliminary interpretations of chemical and isotopic data Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Regional hydrology of the Dixie Valley geothermal field, Nevada- Preliminary interpretations of chemical and isotopic data Authors Gregory Nimz, Cathy Janik, Fraser Goff, Charles Dunlap, Mark Huebner, Dale Counce and Stuart D. Johnson Published Journal Trans Geotherm Resour Counc, 1999 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Regional hydrology of the Dixie Valley geothermal field, Nevada- Preliminary interpretations of chemical and isotopic data Citation Gregory Nimz,Cathy Janik,Fraser Goff,Charles Dunlap,Mark Huebner,Dale

78

Hydrologic Properties of the Dixie Valley, Nevada, Geothermal Reservoir  

Open Energy Info (EERE)

Hydrologic Properties of the Dixie Valley, Nevada, Geothermal Reservoir Hydrologic Properties of the Dixie Valley, Nevada, Geothermal Reservoir from Well-Test Analyses Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Hydrologic Properties of the Dixie Valley, Nevada, Geothermal Reservoir from Well-Test Analyses Abstract Temperature, pressure, and spinner (TPS) logs have been recorded in several wells from the Dixie Valley Geothermal Reservoir in west central Nevada. A variety of well-test analyses has been performed with these data to quantify the hydrologic properties of this fault-dominated geothermal resource. Four complementary analytical techniques were employed, their individual application depending upon availability and quality of data and validity of scientific assumptions. In some instances, redundancy in

79

Applications of Climatology and Meteorology to Hydrologic Simulation  

E-Print Network [OSTI]

TR-38 1971 Applications of Climatology and Meteorology to Hydrologic Simulation R.A. Clark G.E. O?Connor Texas Water Resources Institute Texas A&M University ...

Clark, R. A.; O'Connor, G. E.

80

Soil physical and hydrological properties under three biofuel crops in Ohio  

SciTech Connect (OSTI)

While biofuel crops are widely studied and compared for their energy and carbon footprints, less is known about their effects on other soil properties, particularly hydrologic characteristics. Soils under three biofuel crops, corn (Zea mays), switchgrass (Panicum virgatum), and willow (Salix spp.), were analyzed seven years after establishment to assess the effects on soil bulk density ({rho}{sub b}), penetration resistance (PR), water-holding capacity, and infiltration characteristics. The PR was the highest under corn, along with the lowest associated water content, while PR was 50-60% lower under switchgrass. In accordance with PR data, surface (0-10 cm) bulk density also tended to be lower under switchgrass. Both water infiltration rates and cumulative infiltration amounts varied widely among and within the three crops. Because the Philip model did not fit the data, results were analyzed using the Kostiakov model instead. Switchgrass plots had an average cumulative infiltration of 69 cm over 3 hours with a constant infiltration rate of 0.28 cm min{sup -1}, compared with 37 cm and 0.11 cm min{sup -1} for corn, and 26 cm and 0.06 cm min{sup -1} for willow, respectively. Results suggest that significant changes in soil physical and hydrologic properties may require more time to develop. Soils under switchgrass may have lower surface bulk density, higher field water capacity, and a more rapid water infiltration rate than those under corn or willow.

Bonin, Catherine [Ohio State University; Lal, Dr. Rattan [Ohio State University; Schmitz, Matthias [Rheinsche Friedrich/Wilhelms Universitaet Boon; Wullschleger, Stan D [ORNL

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydrological resistivity influenced" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Lithogenic and cosmogenic tracers in catchment hydrology  

SciTech Connect (OSTI)

A variety of physical processes affect solute concentrations within catchment waters. The isotopic compositions of the solutes can indicate which processes have determined the observed concentrations. These processes together constitute the physical history of the water, which is one of the primary concerns in hydrology. Many groundwater solutes are derived as a result of interaction between the water and the rock and/or soil within the system. These are termed {open_quotes}lithogenic{close_quotes} solutes. The isotopic compositions of these solutes provide information regarding rock-water interactions. Many other solutes have their isotopic compositions determined both internally and externally to the catchment system. Important members of this group include solutes that have isotopic compositions produced by atomic particle interactions with other nuclides. The source of the atomic particles can be cosmic radiation (producing {open_quotes}cosmogenic{close_quotes} nuclides in the atmosphere and land surface), anthropogenic nuclear reactions (producing {open_quotes}thermonuclear{close_quotes} nuclides), or radioactive and fission decay of naturally-occurring elements, such as U and Th (producing {open_quotes}in-situ{close_quotes} lithogenic nuclides in the deep subsurface). Current language usage often combines all of the atomic particle-produced nuclides under the heading {open_quotes}cosmogenic nuclides{close_quotes}, and for simplicity we will often follow that usage, although always clearly indicating which variety is being discussed. This paper addresses the processes that affect the lithogenic and cosmogenic solute compositions in groundwater, and how these compositions can therefore be used in integrative ways to understand the physical history of groundwater within a catchment system.

Nimz, G.J.

1995-01-01T23:59:59.000Z

82

Characterization of a Karst Coastal Ecosystem in the Mexican Caribbean: Assessing the Influence of Coastal Hydrodynamics and Submerged Groundwater Discharges on Seagrass  

E-Print Network [OSTI]

hydrographic variability of this inherently vulnerable ecosystem and assess its influence on a key habitat, the seagrass. The chapters follow the three-branched nature of the study which tackled the connected ecosystem issues of coastal hydrology, physical...

Medina, Israel

2012-07-16T23:59:59.000Z

83

Development of Advanced Thermal-Hydrological-Mechanical-Chemical (THMC)  

Open Energy Info (EERE)

Thermal-Hydrological-Mechanical-Chemical (THMC) Thermal-Hydrological-Mechanical-Chemical (THMC) Modeling Capabilities for Enhanced Geothermal Systems Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Development of Advanced Thermal-Hydrological-Mechanical-Chemical (THMC) Modeling Capabilities for Enhanced Geothermal Systems Project Type / Topic 1 Recovery Act: Enhanced Geothermal Systems Component Research and Development/Analysis Project Type / Topic 2 Integrated Chemical, Thermal, Mechanical and Hydrological Modeling Project Description The proposed research will make significant contributions to assessing, developing, and managing EGS systems. The research results will directly address many of key aspects of developing EGS and traditional geothermal reservoirs from site selection and characterization, reservoir creation, stimulation, and validation to reservoir sustainability. In particular, the proposed development provides a practical approach to assess long-term performance of EGS systems as well as optimum design and operation strategies, by consideration of fully coupled processes of thermal, hydrological, geochemical, and rock deformation effects. This research is strategically important to DOE's mission in the national energy resource and security. Furthermore, once the research goals are achieved, the developed simulator will substantially enhance the ability to characterized EGS systems, predict long-term performance of EGS systems, and optimize production strategies, and help energy extraction from EGS reservoir commercially feasible.

84

Water resources development in Santa Clara Valley, California: insights into the human-hydrologic relationship  

SciTech Connect (OSTI)

Groundwater irrigation is critical to food production and, in turn, to humankind's relationship with its environment. The development of groundwater in Santa Clara Valley, California during the early twentieth century is instructive because (1) responses to unsustainable resource use were largely successful; (2) the proposals for the physical management of the water, although not entirely novel, incorporated new approaches which reveal an evolving relationship between humans and the hydrologic cycle; and (3) the valley serves as a natural laboratory where natural (groundwater basin, surface watershed) and human (county, water district) boundaries generally coincide. Here, I investigate how water resources development and management in Santa Clara Valley was influenced by, and reflective of, a broad understanding of water as a natural resource, including scientific and technological innovations, new management approaches, and changing perceptions of the hydrologic cycle. Market demands and technological advances engendered reliance on groundwater. This, coupled with a series of dry years and laissez faire government policies, led to overdraft. Faith in centralized management and objective engineering offered a solution to concerns over resource depletion, and a group dominated by orchardists soon organized, fought for a water conservation district, and funded an investigation to halt the decline of well levels. Engineer Fred Tibbetts authored an elaborate water salvage and recharge plan that optimized the local water resources by integrating multiple components of the hydrologic cycle. Informed by government investigations, groundwater development in Southern California, and local water law cases, it recognized the limited surface storage possibilities, the spatial and temporal variability, the relatively closed local hydrology, the interconnection of surface and subsurface waters, and the value of the groundwater basin for its storage, transportation, and treatment abilities. The proposal was typically described as complementing an already generous nature, not simply subduing it. Its implementation was limited by political tensions, and fifteen years later, a scaled-down version was constructed. Well levels recovered, but within a decade were declining due to increasing withdrawals. I assert that the approach in Santa Clara Valley was a forerunner to more recent innovations in natural resource management in California and beyond.

Reynolds, Jesse L.; Narasimhan, T.N.

2000-06-01T23:59:59.000Z

85

Updating the US Hydrologic Classification: An Approach to Clustering and Stratifying Ecohydrologic Data  

SciTech Connect (OSTI)

Hydrologic classifications unveil the structure of relationships among groups of streams with differing stream flow and provide a foundation for drawing inferences about the principles that govern those relationships. Hydrologic classes provide a template to describe ecological patterns, generalize hydrologic responses to disturbance, and stratify research and management needs applicable to ecohydrology. We developed two updated hydrologic classifications for the continental US using two streamflow datasets of varying reference standards. Using only reference-quality gages, we classified 1715 stream gages into 12 classes across the US. By including more streamflow gages (n=2618) in a separate classification, we increased the dimensionality (i.e. classes) and hydrologic distinctiveness within regions at the expense of decreasing the natural flow standards (i.e. reference quality). Greater numbers of classes and higher regional affiliation within our hydrologic classifications compared to that of the previous US hydrologic classification (Poff, 1996) suggested that the level of hydrologic variation and resolution was not completely represented in smaller sample sizes. Part of the utility of classification systems rests in their ability classify new objects and stratify analyses. We constructed separate random forests to predict hydrologic class membership based on hydrologic indices or landscape variables. In addition, we provide an approach to assessing potential outliers due to hydrologic alteration based on class assignment. Departures from class membership due to disturbance take into account multiple hydrologic indices simultaneously; thus, classes can be used to determine if disturbed streams are functioning within the realm of natural hydrology.

McManamay, Ryan A [ORNL; Bevelhimer, Mark S [ORNL; Kao, Shih-Chieh [ORNL

2013-01-01T23:59:59.000Z

86

Coupled Thermal-Hydrological-Mechanical Processes in Salt, Hot Granular  

Broader source: Energy.gov (indexed) [DOE]

Coupled Thermal-Hydrological-Mechanical Processes in Salt, Hot Coupled Thermal-Hydrological-Mechanical Processes in Salt, Hot Granular Salt Consolidation, Constitutive Model and Micromechanics Coupled Thermal-Hydrological-Mechanical Processes in Salt, Hot Granular Salt Consolidation, Constitutive Model and Micromechanics The report addresses granular salt reconsolidation from three vantage points: laboratory testing, modeling, and petrofabrics. The experimental data 1) provide greater insight and understanding into the role of elevated temperature and pressure regimes on physical properties of reconsolidated crushed salt, 2) can supplement an existing database used to develop a reconsolidation constitutive model and 3) provide data for model evaluation. The constitutive model accounts for the effects of moisture through pressure solution and dislocation creep, with both terms dependent

87

Coupled Thermal-Hydrological-Mechanical Processes in Salt, Hot Granular  

Broader source: Energy.gov (indexed) [DOE]

Coupled Thermal-Hydrological-Mechanical Processes in Salt, Hot Coupled Thermal-Hydrological-Mechanical Processes in Salt, Hot Granular Salt Consolidation, Constitutive Model and Micromechanics Coupled Thermal-Hydrological-Mechanical Processes in Salt, Hot Granular Salt Consolidation, Constitutive Model and Micromechanics The report addresses granular salt reconsolidation from three vantage points: laboratory testing, modeling, and petrofabrics. The experimental data 1) provide greater insight and understanding into the role of elevated temperature and pressure regimes on physical properties of reconsolidated crushed salt, 2) can supplement an existing database used to develop a reconsolidation constitutive model and 3) provide data for model evaluation. The constitutive model accounts for the effects of moisture through pressure solution and dislocation creep, with both terms dependent

88

Simulation of hydrology and population dynamics of Anopheles mosquitoes around the Koka Reservoir in Ethiopia  

E-Print Network [OSTI]

This thesis applies the HYDRology, Entomology and MAlaria Transmission Simulator (HYDREMATS) to the environment around a water resources reservoir in Ethiopia. HYDREMATS was modified to simulate the local hydrology and the ...

Endo, Noriko S.M. Massachusetts Institute of Technology

2014-01-01T23:59:59.000Z

89

Hydrologic modeling to screen potential environmental management methods for malaria vector control in Niger  

E-Print Network [OSTI]

This paper describes the first use of Hydrology-Entomology and Malaria Transmission Simulator (HYDREMATS), a physically based distributed hydrology model, to investigate environmental management methods for malaria vector ...

Gianotti, Rebecca Louise

90

HYDROLOGY AND CHEMISTRY OF FLOODWATERS IN THE YOLO BYPASS, SACRAMENTO RIVER SYSTEM, CALIFORNIA, DURING 2000.  

E-Print Network [OSTI]

HYDROLOGY AND CHEMISTRY OF FLOODWATERS IN THE YOLO BYPASS, SACRAMENTO RIVER SYSTEM, CALIFORNIA..................................................1 Introduction..............................................2 Hydrology of the Yolo Bypass....................7 Dissolved Metals....................................10 Samples collected by boat in the Yolo

91

A cyber-infrastructure for the measurement and estimation of large-scale hydrologic processes  

E-Print Network [OSTI]

Potential Changes in hydropower production from globalirrigation, recreation, hydropower generation, and otheris also generated via hydropower. The major hydrologic

Kerkez, Branko

2012-01-01T23:59:59.000Z

92

Hydrology as a driver of biodiversity: Controls on carrying capacity, niche formation, and dispersal  

E-Print Network [OSTI]

Hydrology as a driver of biodiversity: Controls on carrying capacity, niche formation online 3 March 2012 Keywords: Hydrology Biodiversity Dispersal Carrying capacity Niches Climate change and dynamics to biodiversity patterns. The focus of this paper is the key hydrologic controls crucial towards

Konar, Megan

93

STATISTICS OF EXTREMES IN CLIMATOLOGY AND HYDROLOGY PART I: BACKGROUND AND TRADITIONAL APPROACHES  

E-Print Network [OSTI]

1 STATISTICS OF EXTREMES IN CLIMATOLOGY AND HYDROLOGY PART I: BACKGROUND AND TRADITIONAL APPROACHES;3 Outline (1) Historical Perspective (2) Basic Characteristics of Climate/Hydrologic Extremes (3) Traditional Statistical Analysis of Climate/Hydrologic Extremes (4) Spatial/Temporal Dependence of Climate

Katz, Richard

94

A real-time borehole correction of electromagnetic wave resistivity logging while drilling  

Science Journals Connector (OSTI)

Abstract The response of electromagnetic wave logging while drilling is influenced greatly by borehole and drilling fluid resistivity when the size of borehole is relatively large and drilling fluid resistivity is low. Borehole radius and drilling fluid resistivity were introduced to obtain more accurate transformed resistivity on the basis of the commonly used resistivity transformation model. The influence of borehole was considered in the newly established three dimensional transformation model, and a new borehole correction method was proposed. The resistivity transformation database can be established by calculation according to a certain instrument, and the true resistivity is obtained by three dimensional interpolation search technology of real-time correction in practical use. The results of numerical simulation and modeling verification show that the transformed resistivity by real-time correction coincides with the resistivity corrected by charts. The method can eliminate the borehole influence, reduce calculation dimension, and improve the inversion efficiency of highly deviated and horizontal wells logging data.

Zhen YANG; Jinzhou YANG; Laiju HAN

2013-01-01T23:59:59.000Z

95

Direct-Current Resistivity Survey At Lightning Dock Area (Warpinski, Et  

Open Energy Info (EERE)

Et Et Al., 2002) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Lightning Dock Area (Warpinski, Et Al., 2002) Exploration Activity Details Location Lightning Dock Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes As a foundation for successful siting and drilling a deep test well, additional geophysical work has been completed including gravity, resistivity, and airborne magnetic surveys. Several new seismic profiles are planned to provide more focused siting and drilling plans. These new geophysical surveys are being integrated into the combined thermal, hydrologic, and subsurface stratigraphic information data sets to provide a

96

Direct-Current Resistivity At Lightning Dock Area (Warpinski, Et Al., 2002)  

Open Energy Info (EERE)

2) 2) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity At Lightning Dock Area (Warpinski, Et Al., 2002) Exploration Activity Details Location Lightning Dock Area Exploration Technique Direct-Current Resistivity Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes As a foundation for successful siting and drilling a deep test well, additional geophysical work has been completed including gravity, resistivity, and airborne magnetic surveys. Several new seismic profiles are planned to provide more focused siting and drilling plans. These new geophysical surveys are being integrated into the combined thermal, hydrologic, and subsurface stratigraphic information data sets to provide a

97

Estimating Hydrologic Values for Planning Wildland Fire Protection1  

E-Print Network [OSTI]

Estimating Hydrologic Values for Planning Wildland Fire Protection1 Henry W. Anderson and Clinton B- quencies under various levels of protection in the area, and (c) the effects of those fires-26, 1981, San Diego, California. 2 Consulting Hydrologist, Lafayette, California, Assistant Chief of Fire

Standiford, Richard B.

98

Fracture aperture reconstruction and determination of hydrological properties: a  

E-Print Network [OSTI]

Fracture aperture reconstruction and determination of hydrological properties: a case study for fracture aperture reconstruction. The rst one is a correlation technique that estimates the normal aper techniques are applied to discontinuities extracted from a core drilled down to 20 m in a fractured marl

Toussaint, Renaud

99

Soil property database: Southern Great Plains 1997 Hydrology Experiment  

E-Print Network [OSTI]

measurement campaigns have been carried out concurrently with large-scale remote sensing hydrologic campaigns surface and the subsurface and the highly nonlinear nature of local-scale water and heat transport head, and unsaturated hydraulic conductivity) and the soil thermal properties (heat capacity, heat

Mohanty, Binayak P.

100

High-resolution, multi-scale modeling of watershed hydrology  

E-Print Network [OSTI]

Enrique R. Vivoni An Opportunity to Integrate Remote Sensing Observations, Field Data Collection distribution of topography, rainfall, soils, vegetation, meteorology, soil moisture. Field Data and Remote's Hydrologic and Energetic System: Water and Heat Storages and Transports over Many Time and Space Scales P ET

Vivoni, Enrique R.

Note: This page contains sample records for the topic "hydrological resistivity influenced" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

HYDROLOGY AND GEOMORPHOLOGY OF A RARE FLOOD, BLACKBURN FORK,  

E-Print Network [OSTI]

-prediction. � Discharge measurements based on boulder size appear to give more reasonable estimates of flood dischargeHYDROLOGY AND GEOMORPHOLOGY OF A RARE FLOOD, BLACKBURN FORK, PUTNAM-JACKSON COUNTIES 18 AUGUST 2010) #12;Source: NOAA 17-18 Aug 2010 #12;#12;FLOOD DAMAGE #12;#12;#12;#12;#12;#12;#12;#12;#12;4 bridges

Hart, Evan

102

ERDC TN-EMRRP-EBA-8 Hydrologic Analyses for Stream  

E-Print Network [OSTI]

and composi- tion of aquatic communities in fluvial ecosystems. These communities depend upon the source should focus on hydrologic and geomorphic factors when evaluating ecosystem restoration (e to support their efforts for ecosystem restoration projects. Guidance on the computation of the more common

US Army Corps of Engineers

103

Climate regulation of humid tropical hydrology BHS 10th National Hydrology Symposium, Exeter, 2008  

E-Print Network [OSTI]

might influence tropical water resources. Introduction The humid tropics can be defined as the global, Bangladesh, and most of South-east Asia (Fosberg et al., 1961). Its climate contains distinctive dynamics

Chappell, Nick A

104

Insulation Resistance Measurement Methods  

Science Journals Connector (OSTI)

A traditional method of insulation resistance measurement in live DC networks is ... of an ammeter is described. Formulas for insulation equivalent resistance calculation are derived with help...

Piotr Olszowiec

2013-01-01T23:59:59.000Z

105

Microsoft Word - 4G_Hydrology_DEIR.doc  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

G-1 ESA / 201074 G-1 ESA / 201074 Public Circulation Draft January 22, 2007 IV.G. Hydrology and Water Quality IV.G.1 Introduction This section discusses existing surface water and groundwater conditions at LBNL and analyzes the potential for the project to alter drainage patterns, increase stormwater runoff rates, adversely affect ground or surface water quality, or decrease groundwater recharge rates to an extent that the groundwater table is lowered. These factors were analyzed based on existing conditions within the Strawberry Creek Watershed and at the site, the extent and nature of proposed development, and future operation of the proposed facilities. IV.G.2 Setting IV.G.2.1 Hydrologic Setting Surface Water LBNL is situated within Blackberry and Strawberry Canyons in the East Bay hills, with the vast

106

Distributed parameter hydrologic modeling usinsg object-oriented simulation  

E-Print Network [OSTI]

DISTRIBUTED PARAMETER HYDROLOGIC MODELING USING OBJECT-ORIENTED SIMULATION A Thesis by KENNETH RAY KLANIKA Submitted to Texas A&M University in partial fulfilhnent of the requirements for the degree of MASTER OF SCIENCE Approved as to style...). The Geographic Object-Oriented Simulation Environment [GOOSE] is linked with GRASS, and is used to create the basic patch network from GRASS ASCII vector and attribute files. The model, written in Common Lisp Object System [CLOS] language, was designed around...

Klanika, Kenneth Ray

2012-06-07T23:59:59.000Z

107

The seasonal dynamics of Arctic surface hydrology in permafrost environments  

E-Print Network [OSTI]

understanding of permafrost surface hydrology. The free access to extensive archives of satellite data through the European Space Agencey (ESA) as well as the National Aeronau- tics and Space Administration (NASA) has become vital. Most importantly, access... support throughout my time at the Scott Polar Research Institute (SPRI). At the beginning of my studies I was privileged to secure a DOC-fFORTE [Women in Research and Technology] Fellowship of the Austrian Academy of Sciences (AW). I would like to thank...

Trofaier, Anna Maria

2014-11-11T23:59:59.000Z

108

Over-parameterisation,a major obstacle to the use of artificial neural networks in hydrology ? Hydrology and Earth System Sciences, 7(5), 693706 (2003) EGU  

E-Print Network [OSTI]

Over-parameterisation,a major obstacle to the use of artificial neural networks in hydrology ? 693 to the use of artificial neural networks in hydrology ? Eric Gaume and Raphael Gosset Ecole Nationale des for corresponding author: gaume@cereve.enpc.fr Abstract Recently Feed-Forward Artificial Neural Networks (FNN) have

Paris-Sud XI, Université de

109

Corrosion resistant concrete using corrosion resistant steel.  

E-Print Network [OSTI]

??Corrosion of reinforced concrete is a major concern in the United States infrastructure. It is possible to create corrosion resistant concrete structures throughcareful evaluation of (more)

Beh, David

2013-01-01T23:59:59.000Z

110

Land conversion in Amazonia and Northern South America : influences on regional hydrology and ecosystem response  

E-Print Network [OSTI]

A numerical model of the terrestrial biosphere (Ecosystem Demography Model) is compbined with an atmospheric model (Brazilian Regional Atmospheric Modeling System) to investigate how land conversion in the Amazon and ...

Knox, Ryan Gary

2013-01-01T23:59:59.000Z

111

Combined influence of atmospheric physics and soil hydrology on the simulated meteorology at the SIRTA atmospheric  

E-Print Network [OSTI]

for This paper is a contribution to the special issue on the IPSL and CNRM global climate and Earth System Models it to evaluate the standard and new parametrizations of boundary layer/convection/clouds in the Earth System Model (ESM) of Institut Pierre Simon Laplace (IPSL), which differentiate the IPSL-CM5A and IPSL- CM5B

Hourdin, Chez Frédéric

112

Streamflow hydrology in the boreal region under the influences of climate and human interference  

Science Journals Connector (OSTI)

...obtained from HYDAT for Canada, http://nwis.waterdata...a subarctic basin in Canada (Liard River), can...seasonal contrasts in solar input, a wide spectrum...arrives. Long hours of solar heating as solstice approaches...evaporation over western boreal Canada and Siberia, respectively...

2008-01-01T23:59:59.000Z

113

Thermal contact resistance  

E-Print Network [OSTI]

This work deals with phenomena of thermal resistance for metallic surfaces in contact. The main concern of the work is to develop reliable and practical methods for prediction of the thermal contact resistance for various ...

Mikic, B. B.

1966-01-01T23:59:59.000Z

114

The electric resistance and electron viscosity of Z-pinch plasma  

Science Journals Connector (OSTI)

The electron magnetohydrodynamic equations imply that electron gas viscosity can have a significant influence on a plasmas electric resistance. For a long inhomogeneous plasma column with axial symmetry as in a z-pinch the viscous part of the resistance can be several orders of magnitude larger than the usual frictional resistance.

A. A. Esaulov; P. V. Sasorov

1997-01-01T23:59:59.000Z

115

Development of a Hydrologic Characterization Technology for Fault Zones Final Report  

E-Print Network [OSTI]

Hydrologic Characterization Technology of Fault Zones, Phaseof Characterization Technology for Fault Zones, LBNL-1635E,Characterization on Technology of Fault Zones Phase II

Karasaki, Kenzi

2014-01-01T23:59:59.000Z

116

Coupled hydrological and biogeochemical dynamics in high elevation meadows: thresholds, resiliency and change  

E-Print Network [OSTI]

Education, in press Exceedance of historic limit of dryness triggers hydrological tipping point in high elevation peatlands In preparation CONFERENCE POSTER

Arnold, Chelsea Lynn

2014-01-01T23:59:59.000Z

117

Development of Advanced Thermal-Hydrological-Mechanical-Chemical (THMC) Modeling Capabilities for Enhanced Geothermal Systems  

Broader source: Energy.gov [DOE]

Development of Advanced Thermal-Hydrological-Mechanical-Chemical (THMC) Modeling Capabilities for Enhanced Geothermal Systems presentation at the April 2013 peer review meeting held in Denver, Colorado.

118

Graduate Opportunities in Earth Systems Modeling and Climate Impacts on Hydrology and Water Resources  

E-Print Network [OSTI]

Graduate Opportunities in Earth Systems Modeling and Climate Impacts on Hydrology and Water research assistantships available in the general area of earth systems modeling and climate impacts

119

Changes in hydrological extremes and climate variability in the Severn Uplands.  

E-Print Network [OSTI]

??Hydrological extremes within the UK have increased in intensity, frequency and persistence over recent years and are predicted to increase in variability throughout the 21st (more)

Biggs, Eloise M.

2009-01-01T23:59:59.000Z

120

MICROPOSIT PHOTO RESISTS  

E-Print Network [OSTI]

MICROPOSIT® S1800® SERIES PHOTO RESISTS MICROPOSIT S1800 SERIES PHOTO RESISTS are positive and maintain linewidth control when process- ing on highly reflective substrates. MICROPOSIT S1800 SERIES PHOTO Photoresist: MICROPOSIT ® S1813 ® PHOTO RESIST Coat: 12,300? Softbake: 115°C/60 sec. Hotplate Exposure: Nikon

Kaiser, Todd J.

Note: This page contains sample records for the topic "hydrological resistivity influenced" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Manual for training reclamation inspectors in the fundamentals of hydrology  

SciTech Connect (OSTI)

This handbook is intended to be a desk reference to help nonhydrologists achieve a basic understanding of hydrology as it relates to surface mining and reclamation. Surface coal mining and reclamation inspectors and other staff will find it useful in implementing regulatory programs. The handbook is not meant to be a comprehensive treatment of the subject. The handbook can be used in the training of surface-mining and reclamation inspectors, both Federal and State, and as a basic reference for inspectors in carrying out their assigned duties. The handbook describes clues and indicators of potential problems, suggests ways to prevent or mitigate them, and discusses various observation and sampling techniques.

Curtis, W.R.; Dyer, K.L.; Williams, G.P.

1988-01-01T23:59:59.000Z

122

Hydrologic resources management program, FY 1998 progress report  

SciTech Connect (OSTI)

This report presents the results from FY 1998 technical studies conducted by Lawrence Livermore National Laboratory (LLNL) as part of the Hydrology and Radionuclide Migration Program (HRMP) and Underground Test Area (UGTA) project. The HRMP is sponsored by Defense Programs (DP) of the U.S. Department of Energy, Nevada Operations Office (DOE/NV), and supports DP operations at the Nevada Test Site (NTS) through studies of radiochemistry and resource management related to the defense programs mission. Other participating organizations include the Los Alamos National Laboratory (LANL), the United States Geological Survey (USGS), the Desert Research Institute (DRI) of the University of Nevada, the United States Environmental Protection Agency (EPA), and Bechtel-Nevada (BN). The UGTA project is an Environmental Management (EM) activity of DOE/NV that supports a Federal Facilities Agreement and Consent Order between the Department of Energy, the Department of Defense, and the State of Nevada. UGTA's primary function is to address the legacy release of hazardous constituents at the Nevada Test Site, the Tonopah Test Range, and off-Nevada Test Site underground nuclear testing areas. Participating contractors include LLNL (Earth and Environmental Sciences Directorate, Analytical and Nuclear Chemistry Division), LANL, DRI, USGS, BN, HSI-GeoTrans, and IT Corporation. The FY 1998 HRMP and UGTA annual progress report follows the organization and contents of our FY 1997 report (Smith et al., 1998), and includes our results from CY 1997-1998 technical studies of radionuclide migration and isotope hydrology at the Nevada Test Site. During FY 1998, LLNL continued its efforts under the HRMP to pursue a technical agenda relevant to the science-based stockpile stewardship program at DOE/NV. Support to UGTA in FY 1998 included efforts to quantitatively define the radionuclide source term residual from underground nuclear weapons testing and the derivative solution, or hydrologic source term, from radionuclides dissolved in or transported by groundwater. The hydrologic source term is a component of a predicted dose assessment for the five principal NTS testing areas.

Benedict, F.C.; Criss, R.E.; Davisson, M.L.; Eaton, G.F.; Hudson, G.B.; Kenneally, J.M.; Rose, T.P.; Smith, D.

1999-07-26T23:59:59.000Z

123

PLANT RESISTANCE Glandular-Haired Alfalfa Resistance to Potato Leafhopper  

E-Print Network [OSTI]

PLANT RESISTANCE Glandular-Haired Alfalfa Resistance to Potato Leafhopper (Homoptera: Cicadellidae for the degree and types of resistance to the potato leafhopper, Empoasca fabae (Harris), and hopperburn. A tube resistance indices for potato leafhopper resistance, hopperburn resistance, and an overall glandular

Mathis, Wayne N.

124

Impacts of Environmental Nanoparticles on Chemical, Biological and Hydrological Processes in Terrestrial Ecosystems  

SciTech Connect (OSTI)

This chapter provides insights on nanoparticle (NP) influence or control on the extent and timescales of single or coupled physical, chemical, biological and hydrological reactions and processes that occur in terrestrial ecosystems. Examples taken from the literature that show how terrestrial NPs may determine the fate of the aqueous and sorbed (adsorbed or precipitated) chemical species of nutrients and contaminants, are also included in this chapter. Specifically, in the first section, chapter objectives, term definitions and discussions on size-dependent properties, the origin and occurrence of NP in terrestrial ecosystems and NP toxicity, are included. In the second section, the topic of the binary interactions of NPs of different sizes, shapes, concentrations and ages with the soil solution chemical species is covered, focusing on NP formation, stability, aggregation, ability to serve as sorbents, or surface-mediated precipitation catalysts, or electron donors and acceptors. In the third section, aspects of the interactions in the ternary systems composed of environmental NP, nutrient/contaminant chemical species, and the soil/sediment matrix are discussed, focusing on the inhibitory and catalytic effects of environmental NP on nutrient/contaminant advective mobility and mass transfer, adsorption and desorption, dissolution and precipitation and redox reactions that occur in terrestrial ecosystems. These three review sections are followed by a short summary of future research needs and directions, the acknowledgements, the list of the references, and the figures.

Qafoku, Nikolla

2012-01-01T23:59:59.000Z

125

WIPP Salado hydrology program data report No. 1. [Salado Formation  

SciTech Connect (OSTI)

WIPP Salado Hydrology Program Data Report {number sign}1 presents hydrologic data collected during permeability tests of the Salado Formation performed from August 1988 through December 1989. Analysis and interpretation of the test data are presented in a separate report. The report presents the results of the drilling and testing of six boreholes drilled from the WIPP underground facility 655 m below ground surface in the Salado Formation. Permeability tests were conducted using multipacker test tools with inflatable packers to isolate borehole intervals to allow formation pore-pressure buildup and subsequent pulse-withdrawal tests. Test data include pressures and temperatures in brine-filled, packer-isolated test intervals and borehole-closure and axial test-tool-movement measurements. Permeability tests were performed after installing multipacker test tools in test boreholes, inflating the packers, and allowing pressures to build up in the isolated intervals. Pulse-withdrawal tests were performed after buildup pressures approached the apparent formation pore pressure. Pulse injections were sometimes performed to increase the fluid pressures in isolated intervals. Compliance tests were conducted in lengths of steel and stainless-steel casing to evaluate the mechanical performance of the multipacker test tools. The stainless-steel compliance-test chamber was installed with externally mounted thermocouples in a downward-angled borehole in Experimental Room 4. Compliance tests included leak tests and simulated pulse-injection and pulse-withdrawal sequences. 9 refs., 143 figs., 2 tabs.

Saulnier, G.J. Jr.; Domski, P.S.; Palmer, J.B.; Roberts, R.M.; Stensrud, W.A. (INTERA, Inc., Austin, TX (USA)); Jensen, A.L. (Sandia National Labs., Albuquerque, NM (USA))

1991-05-01T23:59:59.000Z

126

A tightly coupled GIS and distributed hydrologic modeling framework  

Science Journals Connector (OSTI)

Abstract Distributed, physics-based hydrologic models require spatially explicit specification of parameters related to climate, geology, land-cover, soil, and topography. Extracting these parameters from national geodatabases requires intensive data processing. Furthermore, mapping these parameters to model mesh elements necessitates development of data access tools that can handle both spatial and temporal datasets. This paper presents an open-source, platform independent, tightly coupled GIS and distributed hydrologic modeling framework, \\{PIHMgis\\} (www.pihm.psu.edu), to improve model-data integration. Tight coupling is achieved through the development of an integrated user interface with an underlying shared geodata model, which improves data flow between the \\{PIHMgis\\} data processing components. The capability and effectiveness of the \\{PIHMgis\\} framework in providing functionalities for watershed delineation, domain decomposition, parameter assignment, simulation, visualization and analyses, is demonstrated through prototyping of a model simulation. The framework and the approach are applicable for watersheds of varied sizes, and offer a template for future GIS-Model integration efforts.

Gopal Bhatt; Mukesh Kumar; Christopher J. Duffy

2014-01-01T23:59:59.000Z

127

Hydrologic testing methodology and results from deep basalt boreholes  

SciTech Connect (OSTI)

The objective of the hydrologic field-testing program is to provide data for characterization of the groundwater systems wihin the Pasco Basin that are significant to understanding waste isolation. The effort is directed toward characterizing the areal and vertical distributions of hydraulic head, hydraulic properties, and hydrochemistry. Data obtained from these studies provide input for numerical modeling of groundwater flow and solute transport. These models are then used for evaluating potential waste migration as a function of space and time. The groundwater system beneath the Hanford Site and surrounding area consists of a thick, accordantly layered sequence of basalt flows and associated sedimentary interbed that primarily occur in the upper part of the Columbia River basalt. Permeable horizons of the sequence are associated with the interbeds and the interflow zones within the basalt. The columnar interiors of a flow act as low-permeability aquitards, separating the more-permeable interflows or interbeds. This paper discusses the hydrologic field-gathering activities, specifically, field-testing methodology and test results from deep basalt boreholes.

Strait, S R; Spane, F A; Jackson, R L; Pidcoe, W W

1982-05-01T23:59:59.000Z

128

Reconstructing the duty of water: a study of emergent norms in socio-hydrology  

E-Print Network [OSTI]

This paper assesses the changing norms of water use known as the duty of water. It is a case study in historical socio-hydrology, or more precisely the history of socio-hydrologic ideas, a line of research that is useful ...

Wescoat, James

129

Hydrologic resources management program and underground test area operable unit fy 1997  

SciTech Connect (OSTI)

This report present the results of FY 1997 technical studies conducted by the Lawrence Livermore National Laboratory (LLNL) as part of the Hydrology and Radionuclide Migration Program (HRMP) and Underground Test Area Operable Unit (UGTA). The HRMP is sponsored by the US Department of Energy to assess the environmental (radiochemical and hydrologic) consequences of underground nuclear weapons testing at the Nevada Test Site.

Smith, D. F., LLNL

1998-05-01T23:59:59.000Z

130

STATISTICS OF EXTREMES IN CLIMATOLOGY AND HYDROLOGY PART II: RECONCILING THEORY WITH OBSERVATIONS  

E-Print Network [OSTI]

1 STATISTICS OF EXTREMES IN CLIMATOLOGY AND HYDROLOGY PART II: RECONCILING THEORY WITH OBSERVATIONS of Climate/Hydrologic Extremes (3) Unified Approach (Extremes/Non-Extremes) (4) Complex Extreme Climate Design -- No longer only need for extreme value theory · Complex Extreme Events -- e. g., heat waves

Katz, Richard

131

Installation restoration program: Hydrologic measurements with an estimated hydrologic budget for the Joliet Army Ammunition Plant, Joliet, Illinois. [Contains maps of monitoring well locations, topography and hydrologic basins  

SciTech Connect (OSTI)

Hydrologic data were gathered from the 36.8-mi{sup 2} Joliet Army Ammunition Plant (JAAP) located in Joliet, Illinois. Surface water levels were measured continuously, and groundwater levels were measured monthly. The resulting information was entered into a database that could be used as part of numerical flow model validation for the site. Deep sandstone aquifers supply much of the water in the JAAP region. These aquifers are successively overlain by confining shales and a dolomite aquifer of Silurian age. This last unit is unconformably overlain by Pleistocene glacial tills and outwash sand and gravel. Groundwater levels in the shallow glacial system fluctuate widely, with one well completed in an upland fluctuating more than 17 ft during the study period. The response to groundwater recharge in the underlying Silurian dolomite is slower. In the upland recharge areas, increased groundwater levels were observed; in the lowland discharge areas, groundwater levels decreased during the study period. The decreases are postulated to be a lag effect related to a 1988 drought. These observations show that fluid at the JAAP is not steady-state, either on a monthly or an annual basis. Hydrologic budgets were estimated for the two principal surface water basins at the JAAP site. These basins account for 70% of the facility's total land area. Meteorological data collected at a nearby dam show that total measured precipitation was 31.45 in. and total calculated evapotranspiration was 23.09 in. for the study period. The change in surface water storage was assumed to be zero for the annual budget for each basin. The change in groundwater storage was calculated to be 0.12 in. for the Grant Creek basin and 0. 26 in. for the Prairie Creek basin. Runoff was 7.02 in. and 7.51 in. for the Grant Creek and Prairie Creek basins, respectively. The underflow to the deep hydrogeologic system in the Grant Creek basin was calculated to be negligible. 12 refs., 17 figs., 15 tabs.

Diodato, D.M.; Cho, H.E.; Sundell, R.C.

1991-07-01T23:59:59.000Z

132

An Economic, Hydrologic, and Environmental Assessment of Water Management Alternative Plans for the South Central Texas Region*1  

E-Print Network [OSTI]

An Economic, Hydrologic, and Environmental Assessment of Water Management Alternative Plans. The economic, hydrologic, and environmental consequences of the "best" choice of regional water management plan, and water management plans. #12;3 An Economic, Hydrologic, and Environmental Assessment of Water Management

McCarl, Bruce A.

133

Hydrogen permeation resistant barrier  

DOE Patents [OSTI]

A hydrogen permeation resistant barrier is formed by diffusing aluminum into an iron or nickel alloy and forming an intermetallic aluminide layer.

McGuire, Joseph C. (Richland, WA); Brehm, William F. (Richland, WA)

1982-01-01T23:59:59.000Z

134

Hydrogen permeation resistant barrier  

DOE Patents [OSTI]

A hydrogen permeation resistant barrier is formed by diffusing aluminum into an iron or nickel alloy and forming an intermetallic aluminide layer.

McGuire, J.C.; Brehm, W.F.

1980-02-08T23:59:59.000Z

135

From Consumer Resistance to Stakeholder Resistance The case of nanotechnology*  

E-Print Network [OSTI]

1 From Consumer Resistance to Stakeholder Resistance The case of nanotechnology* Caroline Gauthier proposes to study the resistance of stakeholders, by exploring the nanotech field. Nanotechnology is today in the resistance context. Keywords. Nanotechnology; Resistance Bio. Caroline Gauthier is currently Professor

Boyer, Edmond

136

TEMPERATURE DEPENDENCE OF ELECTRICAL RESISTIVITY IN HIGHLY RESISTIVE ALLOYS  

E-Print Network [OSTI]

L-323 TEMPERATURE DEPENDENCE OF ELECTRICAL RESISTIVITY IN HIGHLY RESISTIVE ALLOYS F. BROUERS at finite temperature yields an expression for the resistivity which is consistent with a gene- ral analysis-dependence of the resistivity and appears as an alternative model to describe the resistivity of crystalline, liquid

Boyer, Edmond

137

I I Hydrological/Geological Studies Radiochemical Analyses of Water  

Office of Legacy Management (LM)

' ' Hydrological/Geological Studies Radiochemical Analyses of Water Samples from Selected Streams, Wells, Springs and Precipitation Collected Prior to Re-Entry . , Drilling, Project Rulison-6, 197 1 HGS 7 ' DISCLAIMER Portions of this document may be illegible in electronic image products. Images are produced from the best available original document. Prepared Under Agreement No. AT(29-2)-474 f o r the Nevada Operations Office U.S. Atomic Energy Commission PROPERTY OF U. S. GOVERNMENT -UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY - F e d e r a l . C e n t e r , D e n v e r , C o l o r a d o 80225 RADIOCHEMICAL ANALYSES OF WATER FROM SELECTED STREAMS, WELLS, SPRINGS, AND PRECIPITATION COLLECTED PRIOR TO REENTRY DRILLING, PROJECT RULISON I , BY Paul T. - V o e g e l i

138

Hydrologic test system for fracture flow studies in crystalline rock  

SciTech Connect (OSTI)

A hydrologic test system has been designed to measure the intrinsic permeabilities of individual fractures in crystalline rock. This system is used to conduct constant pressure-declining flow rate and pressure pulse hydraulic tests. The system is composed of four distinct units: (1) the Packer System, (2) Injection system, (3) Collection System, and (4) Electronic Data Acquisition System. The apparatus is built in modules so it can be easily transported and re-assembled. It is also designed to operate over a wide range of pressures (0 to 300 psig) and flow rates (0.2 to 1.0 gal/min). This system has proved extremely effective and versatile in its use at the Climax Facility, Nevada Test Site.

Raber, E; Lord, D.; Burklund, P.

1982-05-05T23:59:59.000Z

139

Isotope hydrology of catchment basins: lithogenic and cosmogenic isotopic systems  

SciTech Connect (OSTI)

A variety of physical processes affect solute concentrations within catchment waters. The isotopic compositions of the solutes can indicate which processes have determined the observed concentrations. These processes together constitute the physical history of the water. Many solutes in natural waters are derived from the interaction between the water and the rock and/or soil within the system - these are termed `lithogenic` solutes. The isotopic compositions of these solutes provide information regarding rock-water interactions. Many other solutes have their isotopic compositions determined both within and outside of the catchment - i.e., in addition to being derived from catchment rock and soil, they are solutes that are also transported into the catchment. Important members of this group include solutes that have isotopic compositions produced by atomic particle interactions with other nuclides. The source of the atomic particles can be cosmic radiation (producing `cosmogenic` nuclides in the atmosphere and land surface), anthropogenic nuclear reactions (producing `thermonuclear` nuclides), or radioactive and fission decay of naturally-occurring elements, principally {sup 238}U (producing `in-situ` lithogenic nuclides in the deep subsurface). Current language usage often combines all of the atomic particle-produced nuclides under the heading `cosmogenic nuclides`, and for simplicity we will often follow that usage here, although always indicating which variety is being discussed. This paper addresses the processes that affect the lithogenic and cosmogenic solute concentrations in catchment waters, and how the isotopic compositions of the solutes can be used in integrative ways to identify these processes, thereby revealing the physical history of the water within a catchment system. The concept of a `system` is important in catchment hydrology. A catchment is the smallest landscape unit that can both participate in all of the aspects of the hydrologic cycle and also be treated as a mostly closed system for mass balance considerations. It is the near closure of the system that permits well- constrained chemical mass balance calculations to be made. These calculations generally focus of lithogenic solutes, and therefore in our discussions of lithogenic nuclides in the paper, the concept of chemical mass balance in a nearly dosed system will play an important role. Examination of the isotopic compositions of solutes provides a better understanding of the variety of processes controlling mass balance. It is with this approach that we examined the variety of processes occurring within the catchment system, such as weathering and soil production, generation of stormflow and streamflow (hydrograph separation), movement of soil pore water, groundwater flow, and the overall processes involved with basinal water balance. In this paper, the term `nuclide` will be used when referring to a nuclear species that contains a particular number of protons and neutrons. The term is not specific to any element. The term `isotope` will be used to distinguish nuclear species of a given element (atoms with the same number of protons). That is to say, there are many nuclides in nature - for example, {sup 36}Cl, {sup 87}Sr, {sup 238}U; the element has four naturally-occurring isotopes - {sup 87}Sr, and {sup 88}Sr. This paper will first discuss the general principles that underlie the study of lithogenic and cosmogenic nuclides in hydrology, and provide references to some of the more important studies applying these principles and nuclides. We then turn in the second section to a discussion of their specific applications in catchment- scale systems. The final section of this paper discusses new directions in the application of lithogenic and cosmogenic nuclides to catchment hydrology, with some thoughts concerning possible applications that still remain unexplored.

Nimz, G. J., LLNL

1998-06-01T23:59:59.000Z

140

Associations among hydrologic classifications and fish traits to support environmental flow standards  

SciTech Connect (OSTI)

Classification systems are valuable to ecological management in that they organize information into consolidated units thereby providing efficient means to achieve conservation objectives. Of the many ways classifications benefit management, hypothesis generation has been discussed as the most important. However, in order to provide templates for developing and testing ecologically relevant hypotheses, classifications created using environmental variables must be linked to ecological patterns. Herein, we develop associations between a recent US hydrologic classification and fish traits in order to form a template for generating flow ecology hypotheses and supporting environmental flow standard development. Tradeoffs in adaptive strategies for fish were observed across a spectrum of stable, perennial flow to unstable intermittent flow. In accordance with theory, periodic strategists were associated with stable, predictable flow, whereas opportunistic strategists were more affiliated with intermittent, variable flows. We developed linkages between the uniqueness of hydrologic character and ecological distinction among classes, which may translate into predictions between losses in hydrologic uniqueness and ecological community response. Comparisons of classification strength between hydrologic classifications and other frameworks suggested that spatially contiguous classifications with higher regionalization will tend to explain more variation in ecological patterns. Despite explaining less ecological variation than other frameworks, we contend that hydrologic classifications are still useful because they provide a conceptual linkage between hydrologic variation and ecological communities to support flow ecology relationships. Mechanistic associations among fish traits and hydrologic classes support the presumption that environmental flow standards should be developed uniquely for stream classes and ecological communities, therein.

McManamay, Ryan A [ORNL; Bevelhimer, Mark S [ORNL; Frimpong, Dr. Emmanuel A, [Virginia Polytechnic Institute and State University

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydrological resistivity influenced" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
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141

AC resistance measuring instrument  

DOE Patents [OSTI]

An auto-ranging AC resistance measuring instrument for remote measurement of the resistance of an electrical device or circuit connected to the instrument includes a signal generator which generates an AC excitation signal for application to a load, including the device and the transmission line, a monitoring circuit which provides a digitally encoded signal representing the voltage across the load, and a microprocessor which operates under program control to provide an auto-ranging function by which range resistance is connected in circuit with the load to limit the load voltage to an acceptable range for the instrument, and an auto-compensating function by which compensating capacitance is connected in shunt with the range resistance to compensate for the effects of line capacitance. After the auto-ranging and auto-compensation functions are complete, the microprocessor calculates the resistance of the load from the selected range resistance, the excitation signal, and the load voltage signal, and displays of the measured resistance on a digital display of the instrument. 8 figs.

Hof, P.J.

1983-10-04T23:59:59.000Z

142

The Operational Eta Model Precipitation and Surface Hydrologic Cycle of the Columbia and Colorado Basins  

Science Journals Connector (OSTI)

The surface hydrology of the United States western basins is investigated using the National Centers for Environmental Prediction operational Eta Model forecasts. During recent years the model has been subject to changes and upgrades that ...

Yan Luo; Ernesto H. Berbery; Kenneth E. Mitchell

2005-08-01T23:59:59.000Z

143

Hydrologic modeling using triangulated irregular networks : terrain representation, flood forecasting and catchment response  

E-Print Network [OSTI]

Numerical models are modern tools for capturing the spatial and temporal variability in the land-surface hydrologic response to rainfall and understanding the physical relations between internal watershed processes and ...

Vivoni, Enrique R. (Enrique Rafael), 1975-

2003-01-01T23:59:59.000Z

144

An Evaluation of Proposed Representations of Subgrid Hydrologic Processes in Climate Models  

Science Journals Connector (OSTI)

The temporal and spatial scales that characterize surface hydrologic processes provide conceptual and practical difficulties to the development of parameterization schemes for incorporation into climate models. In particular, there is a ...

G. Thomas; A. Henderson-Sellers

1991-09-01T23:59:59.000Z

145

Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture Systems ~ Wildlife Biology, Ecology, and Management  

E-Print Network [OSTI]

Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture Systems ~ Wildlife Biology, Ecology, and Management of Western Hemlock Dwarf Mistletoe in Coastal British.W. Negrave. 2007. Biology, Ecology, and Management of Western Hemlock Dwarf Mistletoe in Coastal British

146

Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture Systems ~ Wildlife Silvicultural Treatments for Enhancing  

E-Print Network [OSTI]

Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture Scientist, Ecological Processes Research Branch BC Ministry of Forests and Range P.O. Box 9519, Stn Prov TR-033 March 2006 Research Section, Coast Forest Region, BCMOF 1 Research Disciplines: Ecology

147

Harnessing the Environmental Data Flood: A Comparative Analysis of Hydrologic, Oceanographic, and Meteorological Informatics Platforms  

Science Journals Connector (OSTI)

Researchers studying large-scale questions in hydrology, oceanography, and meteorology can work with existing data through a myriad of platforms that provide access to remote datasets and render said information in various graphical outputs for ...

Andrew K. Dow; Eli M. Dow; Thomas D. Fitzsimmons; Maurice M. Materise

148

Evaluating and developing parameter optimization and uncertainty analysis methods for a computationally intensive distributed hydrological model  

E-Print Network [OSTI]

This study focuses on developing and evaluating efficient and effective parameter calibration and uncertainty methods for hydrologic modeling. Five single objective optimization algorithms and six multi-objective optimization algorithms were tested...

Zhang, Xuesong

2009-05-15T23:59:59.000Z

149

Synopsis of Mackenzie GEWEX Studies on the Atmospheric-Hydrologic System of a Cold Region  

Science Journals Connector (OSTI)

The atmospheric-hydrologic system of the Mackenzie River Basin (MRB) shares many traits special to the world cold regions. MAGS investigators used a variety of research methods (field investigations, remote se...

Ming-ko Woo

2008-01-01T23:59:59.000Z

150

Image use in the characterization of field parameters: incorporation of remote sensing with hydrologic simulation modeling  

E-Print Network [OSTI]

for discrepancies in values of certain temporal and This thesis foflows the style and format of Transactions of tfre ASAE. site-specific model parameters. The hydrologic simulation model will no longer depend entirely on initial conditions specified by the user... for discrepancies in values of certain temporal and This thesis foflows the style and format of Transactions of tfre ASAE. site-specific model parameters. The hydrologic simulation model will no longer depend entirely on initial conditions specified by the user...

Fox, Garey Alton

2012-06-07T23:59:59.000Z

151

Hydrology Days 2014 Thermally Enhanced Attenuation of Substituted Benzenes  

E-Print Network [OSTI]

as a remediation technique for substituted benzenes, anaerobic soil microcosms were constructed using soils from at the field site. The device allows for the determination of water quality, temperature, and resistivity values as a function of depth. Additionally, carbon dioxide fluxes are being determined at the ground

152

Proline metabolism increases katG expression and oxidative stress resistance in Escherichia coli  

Science Journals Connector (OSTI)

...delta1-pyrroline-5-carboxylate (P5C) dehydrogenase domains in a single polypeptide. Previous studies have suggested that aside from providing energy, proline metabolism influences oxidative stress resistance in different organisms. To explore this potential role and the...

Lu Zhang; James R. Alfano; Donald F. Becker

2014-11-10T23:59:59.000Z

153

Phosphate influences cycling of iron and carbon in the environment |  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Science Science Computing, Environment & Life Sciences Energy Engineering & Systems Analysis Photon Sciences Physical Sciences & Engineering Energy Frontier Research Centers Science Highlights Postdoctoral Researchers Phosphate influences cycling of iron and carbon in the environment August 30, 2013 Tweet EmailPrint Aquatic and terrestrial environments are dynamic systems where coupled microbiological, geochemical, and hydrological processes define the complex interactions that drive the biogeochemical cycling of water and the major and minor elements. Therefore, a thorough understanding of these complex interactions is critical for predicting the biogeochemical cycling of carbon, nutrients, heavy metals, radionuclides, and other contaminants; managing water quality; and understanding the interactions between

154

Towards understanding tree root profiles: simulating hydrologically optimal strategies for root distribution Hydrology and Earth System Sciences, 5(4), 629644 (2001) EGS  

E-Print Network [OSTI]

. The fitness of a certain root profile was defined as the amount of water uptake over a simulation period simulated with these models is sensitive to rooting depth changes (Kleidon and Heimann, 2000). DespiteTowards understanding tree root profiles: simulating hydrologically optimal strategies for root

Boyer, Edmond

155

Multi-scale Hydrologic Applications of the Latest Satellite Precipitation Products in the Yangtze River Basin using a Distributed Hydrologic Model  

Science Journals Connector (OSTI)

The present study aims to evaluate three global satellite precipitation products (3B42 V7, 3B42 RT and CMORPH) during 2003-2012 for multi-scale hydrologic applications, including annual water budgeting, monthly and daily streamflow simulation, and ...

Zhe Li; Dawen Yang; Bing Gao; Yang Jiao; Yang Hong; Tao Xu

156

Hydrology of modern and late Holocene lakes, Death Valley, California  

SciTech Connect (OSTI)

Above-normal precipitation and surface-water runoff, which have been generally related to the cyclic recurrence of the El Nino-Southern Oscillation, have produced modern ephemeral lakes in the closed-basin Death Valley watershed. This study evaluates the regional hydroclimatic relations between precipitation, runoff, and lake transgressions in the Death Valley watershed. Recorded precipitation, runoff, and spring discharge data for the region are used in conjunction with a closed-basin, lake-water-budget equation to assess the relative contributions of water from these sources to modern lakes in Death Valley and to identify the requisite hydroclimatic changes for a late Holocene perennial lake in the valley. As part of the Yucca Mountain Site Characterization Program, an evaluation of the Quaternary regional paleoflood hydrology of the potential nuclear-waste repository site at Yucca Mountain, Nevada, was planned. The objectives of the evaluation were (1) to identify the locations and investigate the hydraulic characteristics of paleofloods and compare these with the locations and characteristics of modern floods, and (2) to evaluate the character and severity of past floods and debris flows to ascertain the potential future hazards to the potential repository during the pre-closure period (US Department of Energy, 1988). This study addresses the first of these objectives, and the second in part, by assessing and comparing the sizes, locations, and recurrence rates of modern, recorded (1962--83) floods and late Holocene paleofloods for the 8,533-mi{sup 2}, closed-basin, Death Valley watershed with its contributing drainage basins in the Yucca Mountain site area.

Grasso, D.N.

1996-07-01T23:59:59.000Z

157

Hydrology and Hydraulic Properties of a Bedded Evaporite Formation  

SciTech Connect (OSTI)

The Permian Salado Formation in the Delaware Basin of New Mexico is an extensively studied evaporite deposit because it is the host formation for the Waste Isolation Pilot Plant, a repository for transuranic wastes. Geologic and hydrologic studies of the Salado conducted since the mid-1970's have led to the development of a conceptual model of the hydrogeology of the formation that involves far-field permeability in anhydrite layers and at least some impure halite layers. Pure halite layers and some impure halite layers may not possess an interconnected pore network adequate to provide permeability. Pore pressures are probably very close to lithostatic pressure. In the near field around an excavation, dilation, creep, and shear have created and/or enhanced permeability and decreased pore pressure. Whether flow occurs in the far field under natural gradients or only after some threshold gradient is reached is unknown. If far-field flow does occur, mean pore velocities are probably on the order of a meter per hundreds of thousands to tens of millions of years. Flow dimensions inferred from most hydraulic-test responses are subradial, which is believed to reflect channeling of flow through fracture networks, or portions of fractures, that occupy a diminishing proportion of the radially available space, or through percolation networks that are not ''saturated'' (fully interconnected). This is probably related to the directional nature of the permeability created or enhanced by excavation effects. Inferred values of permeability cannot be separated from their associated flow dimensions. Therefore, numerical models of flow and transport should include heterogeneity that is structured to provide the same flow dimensions as are observed in hydraulic tests. Modeling of the Salado Formation around the WIPP repository should also include coupling between hydraulic properties and the evolving stress field because hydraulic properties change as the stress field changes.

BEAUHEIM,RICHARD L.; ROBERTS,RANDALL M.

2000-11-27T23:59:59.000Z

158

Hydrologic resources management program. FY 1995 progress report  

SciTech Connect (OSTI)

This report presents the results of FY 1995 technical studies conducted by the Lawrence Livermore National Laboratory (LLNL) as part of the Hydrology and Radionuclide Migration Program (HRMP), a multi-agency program sponsored by the U.S. Department of Energy, Nevada Operations Office (DOE/NV), to address the environmental consequences of nuclear weapons testing at the Nevada Test Site (NTS). A priority is to better characterize the complex near-field environment in order to assess and predict the movement of radionuclides in groundwater. Other participating organizations include the Los Alamos National Laboratory (LANL), the U.S. Geological Survey (USGS) and the Desert Research Institute (DRI) of the University of Nevada. A radiologic source term in excess of 10{sup 8} curies of tritium, fission products, activation products and actinides is residual from more than three decades of underground nuclear weapons testing at the Nevada Test Site (NTS). Burial depths to insure containment of these explosions necessitated firing approximately one third of the more than 800 underground nuclear tests within one cavity radius or below the static water table. Work at LLNL has focused on studies of radionuclide transport under saturated, partially saturated or unsaturated conditions as well as investigations of the stable, radiogenic and cosmogenic isotope systematics of NTS groundwaters. LLNL has prioritized these studies because of the significance for potential radionuclide migration at the Nevada Test Site. LLNL utilizes expertise in nuclear weapons testing, radiochemical diagnostics, nuclear test phenomenology, mass spectrometry, aqueous geochemistry and field and laboratory studies of radionuclide migration to bring a unique measurement and interpretative capability to this research.

Smith, D.K. [comp.] [comp.; Esser, B.K.; Kenneally, J.M. [and others] [and others

1996-03-01T23:59:59.000Z

159

HYDROGEOCHEM: A coupled model of HYDROlogic transport and GEOCHEMical equilibria in reactive multicomponent systems  

SciTech Connect (OSTI)

This report presents the development of a hydrogeochemical transport model for multicomponent systems. The model is designed for applications to proper hydrological setting, accommodation of complete suite of geochemical equilibrium processes, easy extension to deal with chemical kinetics, and least constraints of computer resources. The hydrological environment to which the model can be applied is the heterogeneous, anisotropic, saturated-unsaturated subsurface media under either transient or steady state flow conditions. The geochemical equilibrium processes included in the model are aqueous complexation, adsorption-desorption, ion exchange, precipitation-dissolution, redox, and acid-base reactions. To achieve the inclusion of the full complement of these geochemical processes, total analytical concentrations of all chemical components are chosen as the primary dependent variables in the hydrological transport equations. Attendant benefits of this choice are to make the extension of the model to deal with kinetics of adsorption-desorption, ion exchange, precipitation-dissolution, and redox relatively easy. To make the negative concentrations during the iteration between the hydrological transport and geochemical equilibrium least likely, an implicit form of transport equations are proposed. To alleviate severe constraints of computer resources in terms of central processing unit (CPU) time and CPU memory, various optional numerical schemes are incorporated in the model. The model consists of a hydrological transport module and geochemical equilibrium module. Both modules were thoroughly tested in code consistency and were found to yield plausible results. The model is verified with ten examples. 79 refs., 21 figs., 17 tabs.

Yeh, G.T.; Tripathi, V.S.

1990-11-01T23:59:59.000Z

160

PLANT RESISTANCE Conventional Screening Overlooks Resistance Sources: Rootworm  

E-Print Network [OSTI]

PLANT RESISTANCE Conventional Screening Overlooks Resistance Sources: Rootworm Damage of Diverse.g., landraces, populations, inbreds) for native resistance to western corn rootworm is labor.However,wehaverecentlyobservedthattopcrossed(hybrid) materials tend to have reduced western corn rootworm damage. To formally test whether rootworm damage

Flint-Garcia, Sherry

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While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Preliminary results from an isotope hydrology study of the Kilauea Volcano  

Open Energy Info (EERE)

results from an isotope hydrology study of the Kilauea Volcano results from an isotope hydrology study of the Kilauea Volcano area, Hawaii Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Preliminary results from an isotope hydrology study of the Kilauea Volcano area, Hawaii Abstract Deuterium (D) content of groundwater and precipitation, and tritium content of selected groundwater samples are used to infer flow paths for ground water in the Kilauea volcano area. The spatial distribution of calculated recharge elevations and residence times for groundwater samples tends to support the idea that Kilauea's rift zones comprise leaky boundaries within the regional groundwater flow system, partly isolating the groundwater in the area bounded by the rift zones and the Pacific Ocean. The south wesr

162

Evaluating the impact of longwall coal mining on the hydrologic balance  

SciTech Connect (OSTI)

An approach has been developed to evaluate changes in the hydrologic balance associated with land subsidence above longwall mining operations in the Appalachian Coal Basin. This method consists of developing hydrogeologic cross sections to define specific aquifers and aquitards which exist within the overburden. The cross sections can be used to define the premining hydrologic flow pattern within the mine overburden and the lithologic composition of a well, spring or pond where no previous data were available. Then the water sources are mapped in relationship to the mine development plan. Hydrographs are developed to evaluate changes in water level in a well or the flow characteristics of a spring or stream with respect to the passing of the longwall mine face. To demonstrate the use of the technique, two mine site case histories are presented. These case histories evaluate changes in the hydrologic balance as they relate to potential ground-water depletion of wells, developed springs, streams and surface-water impoundments.

Coe, C.J.; Stowe, S.M.

1984-12-01T23:59:59.000Z

163

Workshop on hydrologic and geochemical monitoring in the Long Valley Caldera: proceedings  

SciTech Connect (OSTI)

A workshop reviewed the results of hydrologic and geochemical monitoring in the Long Valley caldera. Such monitoring is being done to detect changes in the hydrothermal system induced by ongoing magmatic and tectonic processes. Workshop participants discussed the need to instrument sites for continuous measurements of several parameters and to obtain additional hydrologic and chemical information from intermediate and deep drill holes. In addition to seismic and deformation monitoring, programs are currently in progress to monitor changes in the discharge characteristics of hot springs, fumaroles, and soil gases, as well as pressures and temperatures in wells. Some hydrochemical parameters are measured continuously, others are measured monthly or at longer intervals. This report summarizes the information presented at the hydrologic monitoring workshop, following the workshop agenda which was divided into four sessions: (1) overview of the hydrothermal system; (2) monitoring springs, fumaroles, and wells; (3) monitoring gas emissions; and (4) conclusions and recommendations.

Sorey, M.L.; Farrar, C.D.; Wollenberg, H.A.

1984-10-01T23:59:59.000Z

164

WEAR RESISTANT ALLOYS FOR COAL HANDLING EQUIPMENT  

E-Print Network [OSTI]

the abrasion resistance of test materials. detailed testof materials based on their abrasive wear resistance. -li-resistance was designed, constructed, and cal ibrated with standard materials.

Bhat, M.S.

2011-01-01T23:59:59.000Z

165

Ground-water hydrology of the Panther Junction area of Big Bend National Park, Texas  

E-Print Network [OSTI]

GROUND-WATER HYDROLOGY OF THE PANTHER JUNCTION AREA OF BIG BEND NATIONAL PARK, TEXAS A Thesis by JOHN LAWRENCE GIBSON Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE August 1983 Major Subject: Geology GROUND-WATER HYDROLOGY OF THE PANTHER JUNCTION AREA OF BIG BEND NATIONAL PARK, TEXAS A Thesis by JOHN LAWRENCE GIBSON Approved as to style and content by: Melv'n C. Schroeder (Chairman...

Gibson, John Lawrence

2012-06-07T23:59:59.000Z

166

Electrical Resistance of Ferromagnetic Metals  

Science Journals Connector (OSTI)

......calculate the anomalous electrical resistance from the standpoint of s-d...that the anomalous electrical resistance occurs because the exchange...2012) 064715 (8 pages) Electric and Magnetic Properties of...pp. 335-343 Electrical Resistance of Ferromagnetic Metals Isao......

Tadao Kasuya

1956-07-01T23:59:59.000Z

167

Hydrology and Earth System Sciences, 9, 549568, 2005 www.copernicus.org/EGU/hess/hess/9/549/  

E-Print Network [OSTI]

the various objectives are sensitive to different parameters. The simulated water balance shows that 15Hydrology and Earth System Sciences, 9, 549­568, 2005 www.copernicus.org/EGU/hess/hess/9/549/ SRef-ID: 1607-7938/hess/2005-9-549 European Geosciences Union Hydrology and Earth System Sciences Multi

Boyer, Edmond

168

A comparison of the gravity field over Central Europe from superconducting gravimeters, GRACE and global hydrological models, using EOF analysis  

Science Journals Connector (OSTI)

......To compute the ground gravity, the water in a surface layer...hydrological than for ground gravity. The slopes...due to the mixed water attraction. Of...7.3 Hydrology remediation for underground...station and the ground surface. Neumeyer......

David Crossley; Caroline de Linage; Jacques Hinderer; Jean-Paul Boy; James Famiglietti

2012-05-01T23:59:59.000Z

169

Combined surface solar brightening and increasing greenhouse effect support recent intensification of the global land-based hydrological cycle  

E-Print Network [OSTI]

Combined surface solar brightening and increasing greenhouse effect support recent intensification of the global land-based hydrological cycle Martin Wild,1 Ju¨rgen Grieser,2 and Christoph Scha¨r1 Received 30 radiation (surface radiation balance) is the key driver behind the global hydrological cycle. Here we

Fischlin, Andreas

170

Modeling hydrologic and water quality extremes in a changing climate: A statistical approach based on extreme value theory  

E-Print Network [OSTI]

Modeling hydrologic and water quality extremes in a changing climate: A statistical approach based on extreme value theory Erin Towler,1,2 Balaji Rajagopalan,1,3 Eric Gilleland,2 R. Scott Summers,1 David makes quantifying changes to hydrologic extremes, as well as associated water quality effects

Katz, Richard

171

A simplified approach to quantifying predictive and parametric uncertainty in artificial neural network hydrologic models  

E-Print Network [OSTI]

considerable interest in developing methods for uncertainty analysis of artificial neural network (ANN) models and parametric uncertainty in artificial neural network hydrologic models, Water Resour. Res., 43, W10407, doi:10A simplified approach to quantifying predictive and parametric uncertainty in artificial neural

Chaubey, Indrajeet

172

Holocene hydrologic balance of tropical South America from oxygen isotopes of lake sediment opal, Venezuelan Andes  

E-Print Network [OSTI]

Holocene hydrologic balance of tropical South America from oxygen isotopes of lake sediment opal is derived from Atlantic Ocean evaporation which is modified by passage over lowland South America suggest that the decreasing 18 O reflects a decrease in the fraction of moisture entering South America

Wolfe, Alexander P.

173

Mountain hydrology of the western United States Roger C. Bales,1  

E-Print Network [OSTI]

, to better understand the processes controlling the partitioning of energy and water fluxes within and out fluxes and processes. Here extensive monitoring of energy fluxes and hydrologic states are needed of the processes controlling these feedbacks will promote clearer understanding of Earth's water, energy

California at Santa Barbara, University of

174

Eos, Vol. 73, No. 3, January 21, 1992 Hydrology and Hydrochemistry  

E-Print Network [OSTI]

Eos, Vol. 73, No. 3, January 21, 1992 Hydrology and Hydrochemistry of Alpine Basins PAGE 33 Jeff Dozier and Mark Williams This year has seen the first strides toward a global understanding in meltwater from the snow pack dif ferentially; the first meltwater has a chemical Jeff Dozier, NASA Goddard

Dozier, Jeff

175

Aquifers and Wetlands SUMMARY: This chapter begins with an overview of the hydrological cycle and  

E-Print Network [OSTI]

cycle and considers the flow of water in wetlands and undergraound. Special attention is paid to flow through vegetated wetlands. 14.1 The Hydrological Cycle Rivers and streams are but a link in the global cycle of water, called the hydro- logical cycle. Approximately half of the solar energy striking

Cushman-Roisin, Benoit

176

Earth'sFuture Socio-hydrology: Use-inspired water sustainability science  

E-Print Network [OSTI]

Earth'sFuture Socio-hydrology: Use-inspired water sustainability science for the Anthropocene M for Islamic Architecture, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA, 7Department is at the core of the most difficult sustainability challenges facing humans in the modern era, involving

Konar, Megan

177

The fate of Earth's ocean Hydrology and Earth System Sciences, 5(4), 569575 (2001) EGS  

E-Print Network [OSTI]

The fate of Earth's ocean 569 Hydrology and Earth System Sciences, 5(4), 569­575 (2001) © EGS The fate of Earth's ocean Christine Bounama, Siegfried Franck and Werner von Bloh Potsdam Institute@pik-potsdam.de Abstract Questions of how water arrived on the Earth's surface, how much water is contained in the Earth

Paris-Sud XI, Université de

178

Estimating suspended sediment concentrations in areas with limited hydrological data using a mixed-effects model  

E-Print Network [OSTI]

Estimating suspended sediment concentrations in areas with limited hydrological data using a mixed of Geography, Simon Fraser University, Burnaby, British Columbia, Canada Abstract: Sediment rating curves are commonly used to estimate the suspended sediment load in rivers and streams under the assumption

Venditti, Jeremy G.

179

Limited hydrologic response to Pleistocene climate change in deep vadose zones --Yucca Mountain, Nevada  

E-Print Network [OSTI]

and sites viewed as favorable for long-term disposal or storage of hazardous waste. Hydrologic responses, and as these environments are being considered as sites for long-term isolation of toxic waste. However, the flow of small the movement of water through thick vadose zones, especially on time scales encompassing long-term climate

Reiners, Peter W.

180

Process and Results of Hydrology in Long Valley Volcanoes of the Eastern Sierra Nevada Course  

E-Print Network [OSTI]

Process and Results of Hydrology in Long Valley Volcanoes of the Eastern Sierra Nevada Course Leigh of the Sierra Nevada Mountain Range, and specifically the Long Valley. In fact, many of the physical and chemical properties of the landforms in the Long Valley Caldera are the result of hydrothermal systems

Polly, David

Note: This page contains sample records for the topic "hydrological resistivity influenced" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Great Lakes Hydrologic Data Base Development Primary Investigator: Thomas Croley -NOAA GLERL (Emeritus)  

E-Print Network [OSTI]

District), Environment Canada, Hydrologic Engineering Center of the COE (Davis) Overview The goal the Corps of Engineers, EPA, Environment Canada, Fisheries and Oceans, various states and provinces Coordinated Routing Model: GLERL, along with the US Army Corps of Engineers (Detroit District) and Environment

182

Hydrological consistency using multi-sensor remote sensing data for water and energy cycle studies  

E-Print Network [OSTI]

Hydrological consistency using multi-sensor remote sensing data for water and energy cycle studies and feedback of land surface and atmospheric processes over large space and time scales. Remote sensing-based variables including soil moisture (from AMSR-E), surface heat fluxes (from MODIS) and precipitation rates

Pan, Ming

183

Dynamic modeling of nitrogen losses in river networks unravels the coupled effects of hydrological  

E-Print Network [OSTI]

that control denitrifica- tion. Hydrological discharge regimes affect the degree of interaction of the water, with particular attention to the processes that deliver large nitrogen loads to sensitive coastal ecosystems. We measurements from a variety of US streams. These relations are used in the stream transport model

184

Evaluation of distributed hydrologic impacts of temperature-index and energy-based snow models  

E-Print Network [OSTI]

intercepts snow- fall, alters the snow/atmosphere energy exchange and reduces wind speed. Dense canopies tendEvaluation of distributed hydrologic impacts of temperature-index and energy-based snow models c l e i n f o Article history: Received 28 September 2012 Received in revised form 8 March 2013

Dozier, Jeff

185

MEDITERRANEAN CLIMATE STREAMS Review Paper Maintaining and restoring hydrologic habitat connectivity  

E-Print Network [OSTI]

to habitat loss and significant declines in aquatic biodiversity. Often the health of freshwater ecosystems for mediterranean species recovery. Keywords River restoration Á Ecosystem functions model Á GIS Á SacramentoMEDITERRANEAN CLIMATE STREAMS Review Paper Maintaining and restoring hydrologic habitat

Merenlender, Adina

186

Drinking Water Systems, Hydrology, and Childhood GastrointestinalIllnessinCentralandNorthernWisconsin  

E-Print Network [OSTI]

Drinking Water Systems, Hydrology, and Childhood Gastrointestinal, MD, and Jonathan A. Patz, MD Contaminated drinking water is responsible for a widespread disease gastrointestinal illness (GI) attributable to drinking water in the range of 2 to 19 million cases per year.2

Wisconsin at Madison, University of

187

Statistics of extremes in hydrology Richard W. Katz a,*, Marc B. Parlange b  

E-Print Network [OSTI]

Statistics of extremes in hydrology Richard W. Katz a,*, Marc B. Parlange b , Philippe Naveau c Abstract The statistics of extremes have played an important role in engineering practice for water resources design and management. How recent developments in the statistical theory of extreme values can

Katz, Richard

188

Assessing Soil and Hydrologic Properties for the Successful Creation of Non-Tidal Wetlands  

E-Print Network [OSTI]

1 Assessing Soil and Hydrologic Properties for the Successful Creation of Non-Tidal Wetlands W. Lee, VA 23529-0276 rwhittec@odu.edu Introduction Federal and state wetlands protection regulations require the mitigation of impacts to jurisdictional wetlands via avoidance and minimization of damage whenever possible

Darby, Dennis

189

129 Iodine: A New Hydrologic Tracer for Aquifer Recharge Conditions Influenced by River Flow Rate and Evapotranspiration  

E-Print Network [OSTI]

County using boron isotopes and general geochemistry, In Lawrence Livermore National Laboratory UCRL-ID-133529 (pp. 44). ? Davisson, M.L., Hudson, G.B., Herndon, R., & Woodside, G. (1999b). Report on isotope tracer investigations in the Forebay... of the Orange County Groundwater Basin: Fiscal years 1996 and 1997, In Lawrence Livermore National Laboratory UCRL-ID- 133531 (pp. 44). ? Dissanayake, C.B. & Chandrajith, R. (1999). Medical geochemistry of tropical environments. Earth-Science Reviews 47, 219...

Schwehr, K. A.; Santschi, P. H.; Moran, J. E.

2003-01-01T23:59:59.000Z

190

Abrasion resistant composition  

DOE Patents [OSTI]

A surface covering composition of abrasion resistant character adapted for disposition in overlying bonded relation to a metal substrate. The surface covering composition includes metal carbide particles within a metal matrix at a packing factor of not less than about 0.6. Not less than about 40 percent by weight of the metal carbide particles are characterized by an effective diameter in the range of +14-32 mesh prior to introduction to the metal matrix. Not less than about 3 percent by weight of the metal carbide particles are characterized by an effective diameter of +60 mesh prior to introduction to the metal matrix.

Fischer, Keith D; Barnes, Christopher A; Henderson, Stephen L

2014-05-13T23:59:59.000Z

191

Corrosion-resistant uranium  

DOE Patents [OSTI]

The present invention is directed to the protecting of uranium and uranium alloy articles from corrosion by providing the surfaces of the articles with a layer of an ion-plated metal selected from aluminum and zinc to a thickness of at least 60 microinches and then converting at least the outer surface of the ion-plated layer of aluminum or zinc to aluminum chromate or zinc chromate. This conversion of the aluminum or zinc to the chromate form considerably enhances the corrosion resistance of the ion plating so as to effectively protect the coated article from corrosion.

Hovis, Jr., Victor M. (Kingston, TN); Pullen, William C. (Knoxville, TN); Kollie, Thomas G. (Oak Ridge, TN); Bell, Richard T. (Knoxville, TN)

1983-01-01T23:59:59.000Z

192

Corrosion-resistant uranium  

DOE Patents [OSTI]

The present invention is directed to the protecting of uranium and uranium alloy articles from corrosion by providing the surfaces of the articles with a layer of an ion-plated metal selected from aluminum and zinc to a thickness of at least 60 microinches and then converting at least the outer surface of the ion-plated layer of aluminum or zinc to aluminum chromate or zinc chromate. This conversion of the aluminum or zinc to the chromate form considerably enhances the corrosion resistance of the ion plating so as to effectively protect the coated article from corrosion.

Hovis, V.M. Jr.; Pullen, W.C.; Kollie, T.G.; Bell, R.T.

1981-10-21T23:59:59.000Z

193

Oxidation Resistant Graphite Studies  

SciTech Connect (OSTI)

The Very High Temperature Reactor (VHTR) Graphite Research and Development Program is investigating doped nuclear graphite grades exhibiting oxidation resistance. During a oxygen ingress accident the oxidation rates of the high temperature graphite core region would be extremely high resulting in significant structural damage to the core. Reducing the oxidation rate of the graphite core material would reduce the structural effects and keep the core integrity intact during any air-ingress accident. Oxidation testing of graphite doped with oxidation resistant material is being conducted to determine the extent of oxidation rate reduction. Nuclear grade graphite doped with varying levels of Boron-Carbide (B4C) was oxidized in air at nominal 740C at 10/90% (air/He) and 100% air. The oxidation rates of the boronated and unboronated graphite grade were compared. With increasing boron-carbide content (up to 6 vol%) the oxidation rate was observed to have a 20 fold reduction from unboronated graphite. Visual inspection and uniformity of oxidation across the surface of the specimens were conducted. Future work to determine the remaining mechanical strength as well as graphite grades with SiC doped material are discussed.

W. Windes; R. Smith

2014-07-01T23:59:59.000Z

194

Resistive hydrogen sensing element  

DOE Patents [OSTI]

Systems and methods are described for providing a hydrogen sensing element with a more robust exposed metallization by application of a discontinuous or porous overlay to hold the metallization firmly on the substrate. An apparatus includes: a substantially inert, electrically-insulating substrate; a first Pd containing metallization deposited upon the substrate and completely covered by a substantially hydrogen-impermeable layer so as to form a reference resistor on the substrate; a second Pd containing metallization deposited upon the substrate and at least a partially accessible to a gas to be tested, so as to form a hydrogen-sensing resistor; a protective structure disposed upon at least a portion of the second Pd containing metallization and at least a portion of the substrate to improve the attachment of the second Pd containing metallization to the substrate while allowing the gas to contact said the second Pd containing metallization; and a resistance bridge circuit coupled to both the first and second Pd containing metallizations. The circuit determines the difference in electrical resistance between the first and second Pd containing metallizations. The hydrogen concentration in the gas may be determined. The systems and methods provide advantages because adhesion is improved without adversely effecting measurement speed or sensitivity.

Lauf, Robert J. (Oak Ridge, TN)

2000-01-01T23:59:59.000Z

195

Corrosion and wear resistance of tungsten carbide-cobalt and tungsten carbide-cobalt-chromium thermal spray coatings  

SciTech Connect (OSTI)

Tungsten carbide thermal spray coatings provide wear surfaces to new and overhauled components for various industries. Their wear resistance is obtained by incorporating small tungsten carbide particles into a metal matrix. This presentation will show what parameters influence their corrosion resistance in the ASTM B-117 Salt Spray Corrosion Test,

Quets, J.; Alford, J.R.

1999-07-01T23:59:59.000Z

196

Corrosion resistant coatings suitable for elevated temperature application  

DOE Patents [OSTI]

The present invention relates to corrosion resistance coatings suitable for elevated temperature applications, which employ compositions of iron (Fe), chromium (Cr), nickel (Ni) and/or aluminum (Al). The compositions may be configured to regulate the diffusion of metals between a coating and a substrate, which may then influence coating performance, via the formation of an inter-diffusion barrier layer. The inter-diffusion barrier layer may comprise a face-centered cubic phase.

Chan, Kwai S. (San Antonio, TX); Cheruvu, Narayana Sastry (San Antonio, TX); Liang, Wuwei (Austin, TX)

2012-07-31T23:59:59.000Z

197

Quantitative contribution of resistance sources of components to stack performance for planar solid oxide fuel cells  

Science Journals Connector (OSTI)

Abstract This study detects the resistance that influences the stack performance of \\{SOFCs\\} with composition of Ni-YSZ/YSZ/LSC-YSZ and investigates the variation patterns of the resistances of the stack repeating unit (SRU) during operation and their quantitative contributions to its performance at 700C, 750C and 800C. The results indicate that when the cell cathode contacts the interconnect well, the cell resistance accounts for 70.179.7% of that of the SRU, and the contact resistance (CR) between the cathode current-collecting layer (CCCL) and the interconnect accounts for 20.028.9%. The CR between the anode current-collecting layer (ACCL) and the interconnect together with the resistance of the interconnect can be neglected during instantaneous IV testing. When the stack is discharged at constant current for 600h, cell resistance increases by 28.3%, accounting for 93.3% of the SRU degradation, the anodic CR increases by 36.4%, accounting for 6.7% of the SRU degradation, and the resistances of the cathode contact and its neighbor interconnect remain unchanged. Therefore, the increase of the cell resistance is the main reason causing the SRU degradation, and the anodic contact is also an influencing factor that cannot be neglected during stable operation.

Le Jin; Wanbing Guan; Xiao Ma; Huijuan Zhai; Wei Guo Wang

2014-01-01T23:59:59.000Z

198

Fighting Antiobiotic Resistance  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

4 4 Nathaniel J. Cosper1, David L. Bienvenue2, Jacob E. Shokes1, Danuta M. Gilner2, Takashi Tsukamoto3, Robert A. Scott1, and Richard C. Holz2 1Department of Chemistry, University of Georgia, Athens, Georgia 30602-2556 2Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322-0300 3Guilford Pharmaceuticals Inc., 6611 Tributary Street, Baltimore, Maryland 21224 Bacterial infections, such as tuberculosis, have been identified as a world-wide problem leading to the deaths of millions of people each year. The importance of developing new drugs to fight infectious disease caused by these pathogenic organisms is underscored by the emergence of several bacterial strains that are resistant to all currently available antibiotics.1-4 Antibiotics, such as b-lactams, succeed by targeting vital

199

Investigating impacts of natural and human-induced environmental changes on hydrological processes and flood hazards using a GIS-based hydrological/hydraulic model and remote sensing data  

E-Print Network [OSTI]

a GISbased hydrological and hydraulic modeling system, which incorporates state-of-the-art remote sensing data to simulate flood under various scenarios. The conceptual framework and technical issues of incorporating multi-scale remote sensing data...

Wang, Lei

2009-06-02T23:59:59.000Z

200

Reliability of lightning resistant overhead distribution lines  

SciTech Connect (OSTI)

An assessment of the 32 year historical reliability of the 13.8 kV electrical distribution system at the Oak Ridge National Laboratory (ORNL) in Tennessee has yielded several conclusions useful In the planning of Industrial power Systems. The system configuration at ORNL has essentially remained unchanged in the last 32 years which allows a meaningful comparison of reliability trends for the plant`s eight overhead distribution lines, two of which were built in the 1960`s with lightning resistant construction techniques. Meticulous records indicating the cause, duration, and location of 135 electric outages in the plant`s distribution system have allowed a reliability assessment to be performed. The assessment clearly shows how differences in voltage construction class, length, age, and maximum elevation above a reference elevation influence the reliability of overhead power distribution lines. Comparisons are also made between the ORNL historical data and predicted failure rates from ANSI and IEEE industry surveys.

Tolbert, L.M.; Cleveland, J.T.; Degenhardt, L.J.

1995-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydrological resistivity influenced" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Comparing Large-Scale Hydrological Model Predictions with Observed Streamflow in the Pacific Northwest: Effects of Climate and Groundwater  

Science Journals Connector (OSTI)

Assessing uncertainties in hydrologic models can improve accuracy in predicting future streamflow. Here, simulated streamflows using the Variable Infiltration Capacity (VIC) model at coarse () and fine () spatial resolutions were evaluated ...

Mohammad Safeeq; Guillaume S. Mauger; Gordon E. Grant; Ivan Arismendi; Alan F. Hamlet; Se-Yeun Lee

2014-12-01T23:59:59.000Z

202

An Observational and Modeling Study of Impacts of Bark Beetle-Caused Tree Mortality on Surface Energy and Hydrological Cycles  

Science Journals Connector (OSTI)

Bark beetle outbreaks have killed billions of trees and affected millions of hectares of forest during recent decades. Our objective was to quantify responses of surface energy and hydrologic fluxes 2-3 years following a spruce beetle outbreak ...

Fei Chen; Guo Zhang; Michael Barlage; Ying Zhang; Jeffrey A. Hicke; Arjan Meddens; Guangsheng Zhou; William J. Massman; John Frank

203

Geologic characterization of fractures as an aid to hydrologic modeling of the SCV block at the Stripa mine  

SciTech Connect (OSTI)

A series of hydrologic tests have been conducted at the Stripa research mine in Sweden to develop hydrologic characterization techniques for rock masses in which fractures form the primary flow paths. The structural studies reported here were conducted to aid in the hydrologic examination of a cubic block of granite with dimensions of 150 m on a side. This block (the SCV block) is located between the 310- and 460-m depth levels at the Stripa mine. this report describes and interprets the fracture system geology at Stripa as revealed in drift exposures, checks the interpretive model against borehole records and discusses the hydrologic implications of the model, and examines the likely effects of stress redistribution around a drift (the Validation drift) on inflow to the drift along a prominent fracture zone.

Martel, S.J.

1992-04-01T23:59:59.000Z

204

Evaluating the performance of hydrological models via cross-spectral analysis: case study of the Thames Basin, UK.  

Science Journals Connector (OSTI)

Nine distributed hydrological models, forced with common meteorological inputs, simulated naturalised daily discharge from the Thames Basin for 1963-2001. While model-dependent evaporative losses are critical for modelling mean discharge, multiple ...

Graham P. Weedon; Christel Prudhomme; Sue Crooks; Richard J. Ellis; Sonja S. Folwell; Martin J. Best

205

Gabriel Arduino,Paolo Reggiani and EzioTodini Hydrology and Earth System Sciences, 9(4), 280284 (2005) EGU  

E-Print Network [OSTI]

Gabriel Arduino,Paolo Reggiani and EzioTodini 280 Hydrology and Earth System Sciences, 9(4), 280284 (2005) © EGU Recent advances in flood forecasting and flood risk assessment Gabriel Arduino1 , Paolo

Boyer, Edmond

206

Hydrological Cycles over the Congo and Upper Blue Nile Basins: Evaluation of General Circulation Model Simulations and Reanalysis Products  

Science Journals Connector (OSTI)

The simulations and predictions of the hydrological cycle by general circulation models (GCMs) are characterized by a significant degree of uncertainty. This uncertainty is reflected in the range of Intergovernmental Panel on Climate Change (IPCC) ...

Mohamed S. Siam; Marie-Estelle Demory; Elfatih A. B. Eltahir

2013-11-01T23:59:59.000Z

207

Hydrological Cycles over the Congo and Upper Blue Nile Basins: Evaluation of General Circulation Model Simulations and Reanalysis Products  

E-Print Network [OSTI]

The simulations and predictions of the hydrological cycle by general circulation models (GCMs) are characterized by a significant degree of uncertainty. This uncertainty is reflected in the range of Intergovernmental Panel ...

Demory, Marie-Estelle

208

Geotechnical, Geological, and Hydrologic Characterization of a 52km Electrical Power Transmission Line Alignment Route in Southeastern Nigeria  

Science Journals Connector (OSTI)

A 132 kVA electrical transmission line has been proposed to connect the towns ... hydrological study was performed to geotechnically characterize the route alignment and to provide data for design of the foundati...

A. O. Ilori; N. U. Essien; A. E. Edet

2010-11-01T23:59:59.000Z

209

Large-Scale Runoff from Landmasses: A Global Assessment of the Closure of the Hydrological and Atmospheric Water Balances  

Science Journals Connector (OSTI)

The performance of hydrological and hydrometeorological water-balance-based methods to estimate monthly runoff is analyzed. Such an analysis also allows for the examination of the closure of water budgets at different spatial (continental and ...

Christof Lorenz; Harald Kunstmann; Balaji Devaraju; Mohammad J. Tourian; Nico Sneeuw; Johannes Riegger

2014-12-01T23:59:59.000Z

210

Stress and fault rock controls on fault zone hydrology, Coso geothermal  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Stress and fault rock controls on fault zone hydrology, Coso geothermal field, CA Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Stress and fault rock controls on fault zone hydrology, Coso geothermal field, CA Details Activities (1) Areas (1) Regions (0) Abstract: In crystalline rock of the Coso Geothermal Field, CA, fractures are the primary source of permeability. At reservoir depths, borehole image, temperature, and mud logs indicate fluid flow is concentrated in extensively fractured damage zones of large faults well-oriented for slip.

211

Hydrologic sensitivities of the Sacramento-San Joaquin River basin, California, to global warming  

SciTech Connect (OSTI)

The hydrologic sensitivities of four medium-sized mountainous catchments in the Sacramento and San Joaquin River basins to long-term global warming were analyzed. The hydrologic response of these catchments, all of which are dominated by spring snowmelt runoff, were simulated by the coupling of the snowmelt and the soil moisture accounting models of the U.S. National Weather Service River Forecast System. In all four catchments the global warming pattern, which was indexed to CO{sub 2} doubling scenarios simulated by three (global) general circulation models, produced a major seasonal shift in the snow accumulation pattern. Under the alternative climate scenarios more winter precipitation fell as rain instead of snow, and winter runoff increased while spring snowmelt runoff decreased. In addition, large increases in the annual flood maxima were simulated, primarily due to an increase in rain-on-snow events, with the time of occurrence of many large floods shifting from spring to winter.

Lettenmaier, D.P. (Univ. of Washington, Seattle (USA)); Gan, Thian Yew (Asian Institute of Technology, Bangkok (Thailand))

1990-01-01T23:59:59.000Z

212

Agricultural Chemical Movement through a Field-Size Watershed in Iowa:? Surface Hydrology and Nitrate Losses in Discharge  

Science Journals Connector (OSTI)

Agricultural Chemical Movement through a Field-Size Watershed in Iowa:? Surface Hydrology and Nitrate Losses in Discharge ... In this paper, we illustrate another aspect of the water quality profile conceptual model (4) for assessing impacts of farming systems using an analysis of the surface hydrology and nitrate distribution in surface runoff, headcut seepage, and basin drainage from a high relief landscape. ... Surface runoff resulting from snowmelt occurs whenever solar-radiated heat penetrates the snow and heats the soil surface beneath it. ...

Thomas R. Steinheimer; Kenwood D. Scoggin; Larry A. Kramer

1998-02-28T23:59:59.000Z

213

Structure and Origins of Trends in Hydrological Measures over the western United States  

SciTech Connect (OSTI)

This study examines, at 1/8 degree spatial resolution, the geographic structure of observed trends in key hydrologically relevant variables across the western United States (U.S.) over the period 1950-1999, and investigates whether these trends are statistically significantly different from trends associated with natural climate variations. A number of variables were analyzed, including late winter and spring temperature, winter-total snowy days as a fraction of winter-total wet days, 1st April Snow Water Equivalent (SWE) as a fraction of October through March precipitation total (P{sub ONDJFM}), and seasonal (January-February-March; JFM) accumulated runoff as a fraction of water year accumulated runoff. The observed changes were compared to natural internal climate variability simulated by an 850-year control run of the CCSM3-FV climate model, statistically downscaled to a 1/8 degree grid using the method of Constructed Analogues. Both observed and downscaled temperature and precipitation data were then used to drive the Variable Infiltration Capacity (VIC) hydrological model to obtain the hydrological variables analyzed in this study. Large trends (magnitudes found less than 5% of the time in the long control run) are common in the observations, and occupy substantial part of the area (37-42%) over the mountainous western U.S. These trends are strongly related to the large scale warming that appears over 89% of the domain. The strongest changes in the hydrologic variables, unlikely to be associated with natural variability alone, have occurred at medium elevations (750 m to 2500 m for JFM runoff fractions and 500 m-3000 m for SWE/PONDJFM) where warming has pushed temperatures from slightly below to slightly above freezing. Further analysis using the data on selected catchments across the simulation domain indicated that hydroclimatic variables must have changed significantly (at 95% confidence level) over at least 45% of the total catchment area to achieve a detectable trend in measures accumulated to the catchment scale.

Das, T; Hidalgo, H G; Dettinger, M D; Cayan, D R; Pierce, D W; Bonfils, C; Barnett, T P; Bala, G; Mirin, A

2008-08-22T23:59:59.000Z

214

Long-Term Hydrologic Monitoring Program Sampling and Analysis Results for 2010  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) Office of Legacy Management conducted annual sampling at the Rulison, Colorado, Site for the Long-Term Hydrologic Monitoring Program (LTHMP) on May 10 and 11, 2010. The U.S. Environmental Protection Agency (EPA) Radiation and Indoor Environments National Laboratory in Las Vegas, Nevada, analyzed the samples. Samples were analyzed for gamma-emitting radionuclides by high-resolution gamma spectroscopy and for tritium using the conventional and enriched methods.

None

2011-01-10T23:59:59.000Z

215

Rio Blanco, Colorado, Long-Term Hydrologic Monitoring Program Sampling and Analysis Results for 2009  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) Office of Legacy Management conducted annual sampling at the Rio Blanco, Colorado, Site, for the Long-Term Hydrologic Monitoring Program (LTHMP) on May 13 and 14, 2009. Samples were analyzed by the U.S. Environmental Protection Agency (EPA) Radiation&Indoor Environments National Laboratory in Las Vegas, Nevada. Samples were analyzed for gamma-emitting radionuclides by high-resolution gamma spectroscopy and tritium using the conventional and enriched methods.

None

2009-12-21T23:59:59.000Z

216

Impact of water resource development on the hydrology and sedimentology of the Brazos River system  

E-Print Network [OSTI]

. Christopher C. Mathewson Major dam and reservoir development within the Brazos River Basin is correlative with a significant decrease in the suspended sediment load of the river and with increased coastal erosion rates near the delta. A hydrologic analysis... Interval 1: 1920' s ? 41. Interval 2: 1942 ? 51. . . . . . . ~ . . - - ~ ~ ~ ~ ~ ~ - ~ ~ Interval 5: 1952 ? 74. Interval 4: 1942 ? 74. Discharge Control During Flood Stages 20 25 25 25 51 54 54 SEDIMENTOLOGY. Suspended Load. Bed Load. Coastal...

Minter, Larry Lane

1976-01-01T23:59:59.000Z

217

Uncertainties associated with the definition of a hydrologic source term for the Nevada Test Site  

SciTech Connect (OSTI)

The U.S. Department of Energy, Nevada Operations Office (DOE/NV) Environmental Restoration Division is seeking to evaluate groundwater contamination resulting from 30 years of underground nuclear testing at the Nevada Test Site (NTS). This evaluation requires knowledge about what radioactive materials are in the groundwater and how they are transported through the underground environment. This information coupled with models of groundwater flow (flow paths and flow rates) will enable predictions of the arrival of each radionuclide at a selected receptor site. Risk assessment models will then be used to calculate the expected environmental and human doses. The accuracy of our predictions depends on the validity of our hydrologic and risk assessment models and on the quality of the data for radionuclide concentrations in ground water at each underground nuclear test site. This paper summarizes what we currently know about radioactive material in NTS groundwater and suggests how we can best use our limited knowledge to proceed with initial modeling efforts. The amount of a radionuclide available for transport in groundwater at the site of an underground nuclear test is called the hydrologic source term. The radiologic source term is the total amount of residual radionuclides remaining after an underground nuclear test. The hydrologic source term is smaller than the radiologic source term because some or most of the radionuclide residual cannot be transported by groundwater. The radiologic source term has been determined for each of the underground nuclear tests fired at the NTS; however, the hydrologic source term has been estimated from measurements at only a few sites.

Smith, D.K.; Esser, B.K. [Lawrence Livermore National Lab., CA (United States); Thompson, J.L. [Los Alamos National Lab., NM (United States)

1995-05-01T23:59:59.000Z

218

Hydrologic data summary for the White Oak Watershed at Oak Ridge National Laboratory, Oak Ridge, Tennessee, October 1990--December 1991  

SciTech Connect (OSTI)

This report summarizes for the 15-month period of October 1990-- December 1991 the available dynamic hydrologic data collected, primarily on the White Oak Creek (WOC) watershed, along with information collected on the surface flow systems that affect the quality or quantity of surface water. The collection of hydrologic data is one component of numerous, ongoing Oak Ridge National Laboratory (ORNL) environmental studies and monitoring programs and is intended to: (1) characterize the quantity and quality of water in the flow systems; (2) assist with the planning and assessment of remedial action activities; and, (3) provide long-term availability of data and quality assurance. Characterization of the hydrology of the WOC watershed is critical for understanding the processes that drive contaminant transport in the watershed. Identification of spatial and temporal trends in hydrologic parameters and mechanisms that affect the movement of contaminants supports the development of interim corrective measures and remedial restoration alternatives. In addition, hydrologic monitoring supports long-term assessment of the effectiveness of remedial actions in limiting the transport of contaminants across Waste Area Grouping (WAG) boundaries and ultimately to the off-site environment. For these reasons, it is of paramount importance to the Environmental Restoration Program (ERP) to collect and report hydrologic data activities that contribute to the Site Investigations component of the ERP. (White Oak Creek is also referred to as ``Whiteoak`` Creek).

Borders, D.M.; Gregory, S.M.; Clapp, R.B.; Frederick, B.J.; Watts, J.A.

1992-06-01T23:59:59.000Z

219

Hydrologic data summary for the White Oak Watershed at Oak Ridge National Laboratory, Oak Ridge, Tennessee, October 1990--December 1991  

SciTech Connect (OSTI)

This report summarizes for the 15-month period of October 1990-- December 1991 the available dynamic hydrologic data collected, primarily on the White Oak Creek (WOC) watershed, along with information collected on the surface flow systems that affect the quality or quantity of surface water. The collection of hydrologic data is one component of numerous, ongoing Oak Ridge National Laboratory (ORNL) environmental studies and monitoring programs and is intended to: (1) characterize the quantity and quality of water in the flow systems; (2) assist with the planning and assessment of remedial action activities; and, (3) provide long-term availability of data and quality assurance. Characterization of the hydrology of the WOC watershed is critical for understanding the processes that drive contaminant transport in the watershed. Identification of spatial and temporal trends in hydrologic parameters and mechanisms that affect the movement of contaminants supports the development of interim corrective measures and remedial restoration alternatives. In addition, hydrologic monitoring supports long-term assessment of the effectiveness of remedial actions in limiting the transport of contaminants across Waste Area Grouping (WAG) boundaries and ultimately to the off-site environment. For these reasons, it is of paramount importance to the Environmental Restoration Program (ERP) to collect and report hydrologic data activities that contribute to the Site Investigations component of the ERP. (White Oak Creek is also referred to as Whiteoak'' Creek).

Borders, D.M.; Gregory, S.M.; Clapp, R.B.; Frederick, B.J.; Watts, J.A.

1992-06-01T23:59:59.000Z

220

Equifinality of formal (DREAM) and informal (GLUE) bayesian approaches in hydrologic modeling?  

SciTech Connect (OSTI)

In recent years, a strong debate has emerged in the hydrologic literature regarding what constitutes an appropriate framework for uncertainty estimation. Particularly, there is strong disagreement whether an uncertainty framework should have its roots within a proper statistical (Bayesian) context, or whether such a framework should be based on a different philosophy and implement informal measures and weaker inference to summarize parameter and predictive distributions. In this paper, we compare a formal Bayesian approach using Markov Chain Monte Carlo (MCMC) with generalized likelihood uncertainty estimation (GLUE) for assessing uncertainty in conceptual watershed modeling. Our formal Bayesian approach is implemented using the recently developed differential evolution adaptive metropolis (DREAM) MCMC scheme with a likelihood function that explicitly considers model structural, input and parameter uncertainty. Our results demonstrate that DREAM and GLUE can generate very similar estimates of total streamflow uncertainty. This suggests that formal and informal Bayesian approaches have more common ground than the hydrologic literature and ongoing debate might suggest. The main advantage of formal approaches is, however, that they attempt to disentangle the effect of forcing, parameter and model structural error on total predictive uncertainty. This is key to improving hydrologic theory and to better understand and predict the flow of water through catchments.

Vrugt, Jasper A [Los Alamos National Laboratory; Robinson, Bruce A [Los Alamos National Laboratory; Ter Braak, Cajo J F [NON LANL; Gupta, Hoshin V [NON LANL

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydrological resistivity influenced" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Utilizing geographic information systems technology in the Wyoming cumulative hydrologic impact assessment modeling process  

SciTech Connect (OSTI)

The coal-permitting process places heavy demands on both permit applicants and regulatory authorities with respect to the management and analysis of hydrologic data. Currently, this correlation is being addressed for the Powder River Basin, Wyoming by the ongoing Cumulative Hydrologic Impact Assessment (CHIA) efforts at the University of Wyoming. One critical component of the CHIA is the use of a Geographic Information System (GIS) for support, management, manipulation, pre-analysis, and display of data associated with the chosen groundwater and surface water models. This paper will discuss the methodology in using of GIS technology as an integrated tool with the MODFLOW and HEC-1 hydrologic models. Pre-existing GIS links associated with these two models served as a foundation for this effort. However, due to established standards and site specific factors, substantial modifications were performed on existing tools to obtain adequate results. The groundwater-modeling effort required the use of a refined grid in which cell sizes varied based on the relative locations of ongoing mining activities. Surface water modeling was performed in a semi-arid region with very limited topographic relief and predominantly ephemeral stream channels. These were substantial issues that presented challenges for effective GIS/model integration.

Hamerlinck, J.D.; Oakleaf, J.R. [Univ. of Wyoming, Laramie, WY (United States)

1997-12-31T23:59:59.000Z

222

Hardwood re-sprout control in hydrologically restored Carolina Bay depression wetlands.  

SciTech Connect (OSTI)

Carolina bays are isolated depression wetlands located in the upper coastal plain region of the eastern Unites States. Disturbance of this wetland type has been widespread, and many sites contain one or more drainage ditches as a result of agricultural conversion. Restoration of bays is of interest because they are important habitats for rare flora and fauna species. Previous bay restoration projects have identified woody competitors in the seedbank and re-sprouting as impediments to the establishment of herbaceous wetland vegetation communities. Three bays were hydrologically restored on the Savannah River Site, SC, by plugging drainage ditches. Residual pine/hardwood stands within the bays were harvested and the vegetative response of the seedbank to the hydrologic change was monitored. A foliar herbicide approved for use in wetlands (Habitat (Isopropylamine salt of Imazapyr)) was applied on one-half of each bay to control red maple (Acer rubrum L.), sweet gum (Liquidambar styraciflua L.), and water oak (Quercus nigra L.) sprouting. The effectiveness of the foliar herbicide was tested across a hydrologic gradient in an effort to better understand the relationship between depth and duration of flooding, the intensity of hardwood re-sprout pressure, and the need for hardwood management practices such as herbicide application.

Moser, Lee, Justin

2009-06-01T23:59:59.000Z

223

Thermal expansion of single-crystalline La0.83Sr0.17MnO3: The importance of temperature-induced strain for the electrical resistivity  

E-Print Network [OSTI]

-induced strain for the electrical resistivity J. J. Neumeier Department of Physics, Florida Atlantic University expansion, magnetization, and electrical-resistivity measurements of single crystalline La0.83Sr0.17MnO3 transitions is shown to influence the electrical resistivity. S0163-1829 99 01103-0 The electrical properties

224

The erosion resistance of infrared transparent materials  

Science Journals Connector (OSTI)

...research-article The erosion resistance of infrared transparent materials E.J. Coad C.S...discussed. erosion resistance|infrared materials|liquid impact...Keywords: erosion resistance; infrared materials; liquid impact...

1998-01-01T23:59:59.000Z

225

Covered Product Category: Residential Electric Resistance Water...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Electric Resistance Water Heaters Covered Product Category: Residential Electric Resistance Water Heaters The Federal Energy Management Program (FEMP) sets Federal efficiency...

226

WEAR RESISTANT ALLOYS FOR COAL HANDLING EQUIPMENT  

E-Print Network [OSTI]

Proceedings of the Conference on Coal Feeding Systems, HeldWear Resistant Alloys for Coal Handling Equipment", proposalWear Resistant Alloys for Coal Handling Equi pment". The

Bhat, M.S.

2011-01-01T23:59:59.000Z

227

Writing Resistance in Crisis and Collaboration  

E-Print Network [OSTI]

Resistance in Crisis and Collaboration Edited and Curated byResistance in Crisis and Collaboration curated by Lissetteachieved in crisis and collaboration. En solidaridad,

Gomoll, Lucian; Olivares, Lissette

2010-01-01T23:59:59.000Z

228

6962 weather-resistant [adj  

Science Journals Connector (OSTI)

constr. (Descriptive term applied to surfaces of walls, roofs, pavements, wood, etc. exposed to the weather, which have powers of resistance to effects of weather; ? nonrotting [US]/non...

2010-01-01T23:59:59.000Z

229

Production of virus resistant plants  

DOE Patents [OSTI]

A method of suppressing virus gene expression in plants using untranslatable plus sense RNA is disclosed. The method is useful for the production of plants that are resistant to virus infection. 9 figs.

Dougherty, W.G.; Lindbo, J.A.

1996-12-10T23:59:59.000Z

230

Electrical Resistance of Ferromagnetic Metals  

Science Journals Connector (OSTI)

......Physics September 1959 research-article Articles Electrical Resistance of Ferromagnetic Metals Isao Mannari Department of Physics...the Physical Society of Japan 81 (2012) 064715 (8 pages) Electric and Magnetic Properties of bcc Fe Based Multicomponent Alloys......

Isao Mannari

1959-09-01T23:59:59.000Z

231

Definition: Resistivity Log | Open Energy Information  

Open Energy Info (EERE)

Resistivity Log Resistivity Log Jump to: navigation, search Dictionary.png Resistivity Log Electrical resistivity logging is the measurement of potential (voltage) differences resulting from electrical current flow in the vicinity of a borehole in order to determine formation resistivity.[1] View on Wikipedia Wikipedia Definition Resistivity logging is a method of well logging that works by characterizing the rock or sediment in a borehole by measuring its electrical resistivity. Resistivity is a fundamental material property which represents how strongly a material opposes the flow of electric current. In these logs, resistivity is measured using 4 electrical probes to eliminate the resistance of the contact leads. The log must run in holes containing electrically conductive mud or water. Resistivity logging is

232

Corrosion resistant neutron absorbing coatings  

DOE Patents [OSTI]

A method of forming a corrosion resistant neutron absorbing coating comprising the steps of spray or deposition or sputtering or welding processing to form a composite material made of a spray or deposition or sputtering or welding material, and a neutron absorbing material. Also a corrosion resistant neutron absorbing coating comprising a composite material made of a spray or deposition or sputtering or welding material, and a neutron absorbing material.

Choi, Jor-Shan (El Cerrito, CA); Farmer, Joseph C. (Tracy, CA); Lee, Chuck K. (Hayward, CA); Walker, Jeffrey (Gaithersburg, MD); Russell, Paige (Las Vegas, NV); Kirkwood, Jon (Saint Leonard, MD); Yang, Nancy (Lafayette, CA); Champagne, Victor (Oxford, PA)

2012-05-29T23:59:59.000Z

233

Corrosion resistant neutron absorbing coatings  

DOE Patents [OSTI]

A method of forming a corrosion resistant neutron absorbing coating comprising the steps of spray or deposition or sputtering or welding processing to form a composite material made of a spray or deposition or sputtering or welding material, and a neutron absorbing material. Also a corrosion resistant neutron absorbing coating comprising a composite material made of a spray or deposition or sputtering or welding material, and a neutron absorbing material.

Choi, Jor-Shan; Farmer, Joseph C; Lee, Chuck K; Walker, Jeffrey; Russell, Paige; Kirkwood, Jon; Yang, Nancy; Champagne, Victor

2013-11-12T23:59:59.000Z

234

Resistivity of inhomogeneous quantum wires.  

SciTech Connect (OSTI)

We study the effect of electron-electron interactions on the transport in an inhomogeneous quantum wire. We show that contrary to the well-known Luttinger liquid result, nonuniform interactions contribute substantially to the resistance of the wire. In the regime of weakly interacting electrons and moderately low temperatures we find a linear in T resistivity induced by the interactions. We then use the bosonization technique to generalize this result to the case of arbitrarily strong interactions.

Rech, J.; Matveev, K. A.; Materials Science Division

2008-02-15T23:59:59.000Z

235

ASSESSMENT OF CONDUCTIVITY SENSORS PERFORMANCE FOR MONITORING MINED LAND DISCHARGED WATERS AND AN EVALUATION OF THE HYDROLOGIC PERFORMANCE OF THE GUY COVE STREAM RESTORATION PROJECT.  

E-Print Network [OSTI]

??The surface mining method of mountaintop removal has been shown to adversely affect the water quality and hydrologic characteristics of downstream regions. Based on recent (more)

Maupin, Travis Pritchard

2012-01-01T23:59:59.000Z

236

Quantized Resistance Zhifan He, Huimin Yang  

E-Print Network [OSTI]

, Phys. Rev. Lett. 45, 494 (1980) ·The electrical resistance() at B=0 and B=19.8T ·The Hall resistance() ·Nice plateaus in the Hall resistance ·= h/i2 (h=Planck constant, e=elementary charge and iQuantized Resistance Zhifan He, Huimin Yang Fudan University (China) April 9, Physics 141A #12

Budker, Dmitry

237

High Performance Abrasion-Resistant Materials: Lessons from Nature  

E-Print Network [OSTI]

Basics of abrasion resistance materials The progressive lossachieve abrasion resistance, materials need to posses highresistance materials

Wang, Qianqian

2012-01-01T23:59:59.000Z

238

Modeling the Effects of Groundwater-fed Irrigation on Terrestrial Hydrology over the Conterminous United States  

SciTech Connect (OSTI)

Human alteration of the land surface hydrologic cycle is substantial. Recent studies suggest that local water management practices including groundwater pumping and irrigation could significantly alter the quantity and distribution of water in the terrestrial system, with potential impacts on weather and climate through land-atmosphere feedbacks. In this study, we incorporated a groundwater withdrawal scheme into the Community Land Model version 4 (CLM4). To simulate the impact of irrigation realistically, we calibrated the CLM4 simulated irrigation amount against observations from agriculture census at the county scale over the conterminous United States (CONUS). The water used for irrigation was then removed from the surface runoff and groundwater aquifer according to a ratio determined from the county-level agricultural census data. Based on the simulations, the impact of groundwater withdrawals for irrigation on land surface and subsurface fluxes were investigated. Our results suggest that the impacts of irrigation on latent heat flux and potential recharge when water is withdrawn from surface water alone or from both surface and groundwater are comparable and local to the irrigation areas. However, when water is withdrawn from groundwater for irrigation, greater effects on the subsurface water balance were found, leading to significant depletion of groundwater storage in regions with low recharge rate and high groundwater exploitation rate. Our results underscore the importance of local hydrologic feedbacks in governing hydrologic response to anthropogenic change in CLM4 and the need to more realistically simulate the two-way interactions among surface water, groundwater, and atmosphere to better understand the impacts of groundwater pumping on irrigation efficiency and climate.

Leng, Guoyong; Huang, Maoyi; Tang, Qiuhong; Gao, Huilin; Leung, Lai-Yung R.

2014-06-01T23:59:59.000Z

239

REGIONAL HYDROLOGY OF THE NOPAL I SITE, SIERRA DE PENA BLANCA, CHIHUAHUA, MEXICO  

SciTech Connect (OSTI)

The U.S. Department of Energy sponsored the drilling of three wells in 2003 near the Nopal I uranium deposit at the Sierra Pena Blanca, Chihuahua, Mexico. Piezometric information is being collected to understand groundwater flow at local and regional levels as part of an ongoing natural analogue study of radionuclide migration. Water level monitoring reported at these and other wells in the region is combined with archival data to provide a better understanding of the hydrology at Nopal I. Initial results suggest that the local hydrology is dependent on the regional hydrologic setting and that this groundwater system behaves as an unconfined aquifer. The region is dominated by an alternating sequence of highlands and basins that step down from west to east. The Sierra de Pena Blanca was downdropped from the cratonic block to the west during Cenozoic extension. The Nopal I area is near the intersection of two large listric faults, and the questa of ash flow tuffs that hosts the deposit has been subjected to complex structural events. The Pena Blanca Uranium District was originally characterized by 105 airborne radiometric anomalies, indicating widespread uranium mineralization. The Nopal I uranium deposit is located in the Sierra del Pena Blanca between the Encinillas Basin to the west, with a mean elevation of 1560 m, and the El Cuervo Basin to the east, with a mean elevation of 1230 m. The Nopal I + 10 level is at an intermediate elevation of 1463 m, with a corresponding groundwater elevation of approximately 1240 m. The regional potentiometric surface indicates flow from west to east, with the El Cuervo Basin being the discharge zone for the regional flow system. However, it appears that the local groundwater potential beneath the Nopal I site is more in accordance with the water table of the El Cuervo Basin than with that of the Encinillas Basin. This might indicate that there is limited groundwater flow between the Encinillas Basin and the Nopal I area.

J.A. Rodriguez-Pineda; P. Goodell; P.F. Dobson; J. Walton; R. Oliver; De La Garza; S. Harder

2005-07-11T23:59:59.000Z

240

Hydrological and chemical budgets of a mire pool formed on alluvial lowland of Hokkaido, northern Japan  

Science Journals Connector (OSTI)

Summary Mire pools permanently water-filled depressions on peatlands provide important habitats for myriad organisms. Recently, water balance change and eutrophication resulting from agricultural development are increasingly evident in mire pools of alluvial lowlands. Conservation of mire pool hydrochemistry is necessary. We investigated the hydrological and chemical budgets of a pristine mire pool, Akanuma Pool (95,280m2 area; 1.8m mean depth), located in Kushiro Mire in Hokkaido, northern Japan, during its ice-free period (AprilNovember) in 20072008. Thereby we elucidated the hydrochemical characteristics of mire pools formed on alluvial lowlands. Surface water inflow and surface water outflow dominated the hydrological budget, respectively representing 18.3 and 20.2mmday?1. Groundwater seepage through the pool bottom and surface water inflow mainly supplied the lake water with total nitrogen and Ca2+. Total phosphorus was supplied mostly by groundwater seepage through the bottom. These chemical constituents were run off from the pool mostly by surface water outflow. The input and output fluxes of water were 1620 times greater than those of North American mire pools because of Hokkaidos higher values of precipitation minus evapotranspiration (PET). Moreover, the Ca2+ input into the Akanuma Pool was several times greater than those reported from North American studies. Alluvial mineral soil under the peat layer supplied large amounts of nutrients and mineral ions including Ca2+. These results demonstrate that Hokkaido mire pools hydrochemical characteristics differ greatly from those of pools in North America. Furthermore, each hydrological budget component maintained a constant fraction throughout the two year study period, although the absolute flow rate varied concomitantly with the precipitation level. Maintaining this budget stability is important for the conservation of mire pool hydrochemistry.

Toshikazu Kizuka; Hiroyuki Yamada; Takashi Hirano

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydrological resistivity influenced" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Effects of thermo-erosion gullying on hydrologic flow networks, discharge and soil loss  

Science Journals Connector (OSTI)

Thermo-erosion gullies in continuous permafrost regions where ice-wedge polygons are widespread contribute and change the drainage of periglacial landscapes. Gullying processes are causing long-term impacts to the Arctic landscape such as drainage network restructuring, permafrost erosion, sediment transport. Between 2009 and 2013, 35 gullies were mapped in a polygon terrace in the valley of the Glacier C-79 on Bylot Island, Nunavut (Canada), one of which was monitored for its hydrology. A gully (R08p) initiated in 1999 in a low-center polygon terrace. Between 1999 and 2013, 202 polygons over a surface of 28 891 m2 were breached by gullying. Overall, 1401 polygons were similarly breached on the terrace in the valley before 2013. R08p is fed by a 1.74 km2 watershed and the hydrological regime is characterized by peak flows of 0.69 m3 s?1 and a cumulative volume of 229 662 m3 for 2013. Historic aerial photography from 1972 and recent field surveys showed a change in the paths of water tracks and an increase in channelized flow in the gully area from none to 35% of the overall flow path of the section. The overall eroded area for the studied gullies in the valley up to 2013 was estimated at 158 000 m2 and a potential volume close to 200 000 m3. Gullying processes increased drainage of wetlands and the hydrological connectivity in the valley, while lowering residence time of water near gullied areas.

Etienne Godin; Daniel Fortier; Stphanie Coulombe

2014-01-01T23:59:59.000Z

242

Inventory of Shale Formations in the US, Including Geologic, Hydrological, and Mechanical Characteristics  

SciTech Connect (OSTI)

The objective of this report is to build upon previous compilations of shale formations within many of the major sedimentary basins in the US by developing GIS data delineating isopach and structural depth maps for many of these units. These data are being incorporated into the LANL digital GIS database being developed for determining host rock distribution and depth/thickness parameters consistent with repository design. Methods were developed to assess hydrological and geomechanical properties and conditions for shale formations based on sonic velocity measurements.

Dobson, Patrick; Houseworth, James

2013-11-22T23:59:59.000Z

243

Data base dictionary for the Oak Ridge Reservation Hydrology and Geology Study Groundwater Data Base  

SciTech Connect (OSTI)

The Oak Ridge Reservation Hydrology and Geology Study (ORRHAGS) Groundwater Data Base has been compiled to consolidate groundwater data from the three US Department of Energy facilities located on the Oak Ridge Reservation: the Oak Ridge K-25 Site, the Oak Ridge National Laboratory, and the Oak Ridge Y-12 Plant. Each of these facilities maintains its own groundwater and well construction data bases. Data were extracted from the existing data bases, converted to a consistent format, and integrated into the ORRHAGS Groundwater Data Base structures. This data base dictionary describes the data contained in the ORRHAGS Groundwater Data Base and contains information on data base structure, conventions, contents, and use.

Thompson, B.K.

1993-04-01T23:59:59.000Z

244

Oxidation resistant alloys, method for producing oxidation resistant alloys  

DOE Patents [OSTI]

A method for producing oxidation-resistant austenitic alloys for use at temperatures below 800.degree. C. comprising of: providing an alloy comprising, by weight %: 14-18% chromium, 15-18% nickel, 1-3% manganese, 1-2% molybdenum, 2-4% silicon, 0% aluminum and the balance being iron; heating the alloy to 800.degree. C. for between 175-250 hours prior to use in order to form a continuous silicon oxide film and another oxide film. The method provides a means of producing stainless steels with superior oxidation resistance at temperatures above 700.degree. C. at a low cost

Dunning, John S. (Corvallis, OR); Alman, David E. (Salem, OR)

2002-11-05T23:59:59.000Z

245

Oxidation resistant alloys, method for producing oxidation resistant alloys  

DOE Patents [OSTI]

A method for producing oxidation-resistant austenitic alloys for use at temperatures below 800 C. comprising of: providing an alloy comprising, by weight %: 14-18% chromium, 15-18% nickel, 1-3% manganese, 1-2% molybdenum, 2-4% silicon, 0% aluminum and the balance being iron; heating the alloy to 800 C. for between 175-250 hours prior to use in order to form a continuous silicon oxide film and another oxide film. The method provides a means of producing stainless steels with superior oxidation resistance at temperatures above 700 C. at a low cost

Dunning, John S.; Alman, David E.

2002-11-05T23:59:59.000Z

246

Database of Mechanical and Hydrological Properties of WIPP Anhydrite Derived from Laboratory-Scale Experiments  

SciTech Connect (OSTI)

The Department of Energy (DOE) has developed the Waste Isolation Pilot Plant (WIPP) for the purpose of demonstrating safe management, storage, and disposal of radioactive transuranic (TRU) waste generated by U.S. defense programs. The WIPP is located in southeastern New Mexico, and the underground facilities of the WIPP (i.e., experimental rooms, disposal rooms, etc.) are sited in the bedded salt of the Salado Formation at a depth of about 660 meters. The DOE has authorized the continuance of scientific research and engineering analysis related to the performance of the WIPP repository. One area of additional research relates to characterization of the mechanical and hydrological properties of anhydrite interbeds within the Salado Formation. These anhydrite interbeds have been penetrated by the shafts that provide access to the underground facilities and also lie in close proximity to the proposed radioactive waste disposal rooms at the repository horizon. Properties of particular interest are mechanical strength, deforrnational behavior, and fluid transport properties such as permeability. These properties will be used in calculationskmalyses of the mechanical and hydrological behavior of the anhydrite, in particular, and the shaft sealing system and disposal rooms, in general.

Hansen, F.D.; Pfeifle, T.W.

1998-10-01T23:59:59.000Z

247

Waste Isolation Pilot Plant Salado hydrology program data report {number_sign}3  

SciTech Connect (OSTI)

WIPP Salado Hydrology Program Data Report {number_sign}3 presents hydrologic data collected during permeability testing, coupled permeability and hydrofracture testing, and gas-threshold-pressure testing of the Salado Formation performed from November 1991 through October 1995. Fluid-pressure monitoring data representing August 1989 through May 1995 are also included. The report presents data from the drilling and testing of three boreholes associated with the permeability testing program, nine boreholes associated with the coupled permeability and hydrofracture testing program, and three boreholes associated with the gas-threshold-pressure testing program. The purpose of the permeability testing program was to provide data with which to interpret the disturbed and undisturbed permeability and pore pressure characteristics of the different Salado Formation lithologies. The purpose of the coupled permeability and hydrofracture testing program was to provide data with which to characterize the occurrence, propagation, and direction of pressure induced fractures in the Salado Formation lithologies, especially MB139. The purpose of the gas-threshold-pressure testing program was to provide data with which to characterize the conditions under which pressurized gas displaces fluid in the brine-saturated Salado Formation lithologies. All of the holes were drilled from the WIPP underground facility 655 m below ground surface in the Salado Formation.

Chace, D.A.; Roberts, R.M.; Palmer, J.B.; Kloska, M.B.; Fort, M.D.; Martin, G.J.; Stensrud, W.A. [INTERA, Inc., Albuquerque, NM (United States)

1998-01-01T23:59:59.000Z

248

On the relationship between uncertainties in tropical divergence and the hydrological cycle in global models  

SciTech Connect (OSTI)

A survey of tropical divergence from three GCMs, three global reanalyses and four insitu soundings from field campaigns shows the existence of large uncertainties in the ubiquity of shallow divergent circulation as well as the depth and strength of the deep divergent circulation. More specifically, only two GCMs out of the three GCMs and three global reanalyses show significant shallow divergent circulation, which is present in all in-situ soundings, and of the three GCMs and three global reanalyses, only two global reanalyses have deep divergence profiles that lie within the range of uncertainty of the soundings. The relationships of uncertainties in the shallow and deep divergent circulation to uncertainties in present day and projected strength of the hydrological cycle from the GCMs are assessed. In the tropics and subtropics, deep divergent circulation is the largest contributor to moisture convergence that balances the net precipitation, and inter-model differences in the present day simulations carry over onto the future projections. In comparison to the soundings and reanalyses, the GCMs are found to have deeper and stronger divergent circulation. While these two characteristics of GCM divergence affect the strength of the hydrological cycle, they tend to compensate for each other so that their combined effect is relatively modest.

Hagos, Samson M.; Leung, Lai-Yung R.

2012-01-01T23:59:59.000Z

249

Regional flood hydrology in a semi-arid catchment using a GLS regression model  

Science Journals Connector (OSTI)

Summary The regional flood frequency hydrology of the 86,000km2 and semi-arid Ebro catchment is investigated using an extended generalised least square model that includes separate descriptions for sampling errors and model errors. The Ebro catchment is characterised by large hydro-climatic heterogeneities among sub-regions. However, differences in flood processes among sites are better explained by a set of new catchment descriptors introduced into hydrological regression models, such as new characteristics derived from the slope of flow duration curves, the ratio of mean annual precipitation to extreme precipitations and the aridity index. These additions enabled a more direct link to be established between the general flow regime and the extreme flood characteristics through-out the entire catchment. The new regression models developed in this study were compared to a set of existing models recommended for flood frequency estimation in Spain. It was found that the generalised least squares model developed in this study improves the existing ordinary least squares models both at regional and trans-regional scales. An adequate description of flood processes is obtained and, as a direct consequence, more reliable flood predictions in ungauged catchments are achieved.

Luis Mediero; Thomas R. Kjeldsen

2014-01-01T23:59:59.000Z

250

Hydrologic Resources Management Program and Underground Test Area Project FY 2000 Progress Report  

SciTech Connect (OSTI)

This report highlights the results of FY 2000 technical studies conducted by the Analytical and Nuclear Chemistry Division (ANCD) at Lawrence Livermore National Laboratory (LLNL) in support of the Hydrology and Radionuclide Migration Program (HRMP) and Underground Test Area (UGTA) Project. This is the latest in a series of annual reports published by LLNL-ANCD to document recent investigations of radionuclide migration and transport processes at the Nevada Test Site (NTS). The HRMP is sponsored by Defense Programs (DP) at the U.S. Department of Energy, Nevada Operations Office (DOENV), and supports DP operations at the NTS through studies of radiochemical and hydrologic processes that are relevant to the DP mission. Other organizations that support the HRMP include Los Alamos National Laboratory (LANL), the U.S. Geological Survey (USGS), the Desert Research Institute (DRI) of the University of Nevada, the U.S. Environmental Protection Agency (EPS), and Bechtel Nevada (BN). The UGTA Project is sponsored by the Environmental Management (EM) program at DOENV; its goal is to determine the extent of radionuclide contamination in groundwater resulting from underground nuclear testing at the NTS. The project strategy follows guidelines set forth in a Federal Facilities Agreement and Consent Order between the U.S. Department of Energy, the U.S. Department of Defense, and the State of Nevada. Participating contractors include LLNL (both ANCD and the Energy and Environmental Sciences Directorate), LANL, USGS, DRI, BN, and IT Corporation (with subcontract support from Geotrans Inc.).

Davisson, M L; Eaton, G F; Hakemi, N L; Hudson, G B; Hutcheon, I D; Lau, C A; Kersting, A B; Kenneally, J M; Moran, J E; Phinney, D L; Rose, T P; Smith, D K; Sylwester, E R; Wang, L; Williams, R; Zavarin, M

2001-07-01T23:59:59.000Z

251

Improvement of resistance to hydrogen induced cracking in electric resistance welded pipes fabricated with slit coils  

Science Journals Connector (OSTI)

The optimization of electric resistance welding (ERW) conditions was studied to improve the resistance to hydrogen induced cracking (HIC) at ... Furthermore, for a satisfactory level of HIC resistance, the fracti...

Hyun Uk Hong; Jong Bong Lee; Ho Jin Choi

2009-02-01T23:59:59.000Z

252

Comparison of four models simulating phosphorus dynamics in LakeVnern,Sweden Hydrology and Earth System Sciences, 8(6), 11531163 (2004) EGU  

E-Print Network [OSTI]

Comparison of four models simulating phosphorus dynamics in LakeVänern,Sweden 1153 Hydrology dynamics in Lake Vänern, Sweden Magnus Dahl1 and B. Charlotta Pers2 1 Department of Chemical Engineering, Karlstad University, SE651 88 Karlstad, Sweden 2 Swedish Meteorological and Hydrological Institute, SE601

Paris-Sud XI, Université de

253

Simulation of flood reduction by natural river rehabilitation using a distributed hydrological model Hydrology and Earth System Sciences, 8(6), 11291140 (2004) EGU  

E-Print Network [OSTI]

and by assessing the response of the stream channels to the resistance or obstruction of flows. Based frequency and enhance flood peaks downstream. Moreover, urbanisation in the basin increased by 30% between. Urbanisation enhances runoff because of impervious areas, reduced vegetation cover, depression storage

Boyer, Edmond

254

On Understanding Ship Resistance Mathematically  

Science Journals Connector (OSTI)

......potential theory to, in effect, deduce these velocities...sufficiently far behind the ship may be regarded as...first order or "thin ship" distribution of...hull, where local effects are important and...ON UNDERSTANDING SHIP RESISTANCE MATHEMATICALLY...Even if this viscous effect could be removed......

G. E. GADD

1968-03-01T23:59:59.000Z

255

The Electrical Resistance of Metals.  

Science Journals Connector (OSTI)

Electrical Resistance of Eighteen Elements.The paper contains a brief summary of an extensive series of measurements which are to be published in detail elsewhere made to determine the effect of pressures up to 12000 kg. per sq. cm. and of temperatures from 0 to 275 C. on the resistance of lithium, sodium, potassium, gallium, bismuth, mercury, calcium, strontium, magnesium, titanium, zirconium, arsenic, tungsten, lanthannum, neodymium, carbon (amorphous and graphitic), silicon, and black phosphorus. The data for tungsten and magnesium are improvements on data previously published; the data for the other substances are new. The first six of these elements were studied in both the liquid and the solid states. The pressure coefficients of solid calcium, solid strontium, and both solid and liquid lithium are positive; the coefficient of bismuth is positive in the solid state, but negative in the liquid.Modified Electron Theory of Metallic Conduction.A previous theoretical discussion of measurements of the effect of pressure on resistance suggested most strongly that in metallic conduction the electrons pass through the substance of the atoms, and that the mechanism by which resistance is produced is intimately connected with the amplitude of atomic vibration. This view is here given quantitative form. The classical expression for conductivity, ?=(e22m)(nlv), is retained; the number of free electrons is supposed to remain constant, their velocity is taken to be that of a gas particle of the same mass and temperature, and their mean free path is supposed to be many times the distance between atomic centers. The variations of path are then computed in terms of the variations of amplitude, and thus the variations of resistance are obtained and checked with experimental results. It is shown that the theory in this form explains Ohm's law, gives the correct temperature coefficient and the most important part of the pressure coefficient, avoids the difficulty of the classical theory with reference to specific heats, indicates a vanishing resistance at low temperatures, leaving open the possibility of super-conductivity, and retains the classical expression for the Wiedemann-Franz ratio. Besides these quantitative checks, the theory is shown to be entirely consistent qualitatively with all the new data; in fact, many of these new results, particularly the effect of pressure and temperature on the relative resistance of solid and liquid, seem to demand uniquely this conception of metallic conduction.

P. W. Bridgman

1921-02-01T23:59:59.000Z

256

Measurement of nasal resistance by rhinomanometry in 892 Japanese elementary school children  

Science Journals Connector (OSTI)

Objective The normal value of nasal resistance in adults has been reported (0.25Pa/cm3/s), but that in children has not. In this study, we measured nasal resistance in Japanese school children by employing rhinomanometry. Methods An otolaryngologist examined 939 Japanese school children with regard to the presence or absence of nasal diseases and tonsil size. Nasal resistance was measured by rhinomanometry employing the active anterior method in 892 children. A questionnaire concerning the condition during sleep, such as the presence or absence of snoring and sleep apnea syndrome, was performed. Results The mean nasal resistance was 0.430.50Pa/cm3/s: 0.460.65 and 0.390.22Pa/cm3/s in boys and girls, respectively. Of the 892 children, Grade 3 and 4 tonsil hypertrophy was noted in 84 (9%), but the presence of tonsil hypertrophy did not influence nasal resistance. Nasal diseases were noted in 335 children (38%) and the nasal condition was normal (the normal group) in 557 (62%). Nasal resistance was 0.560.75Pa/cm3/s in the nasal disease group and 0.360.21Pa/cm3/s in the normal group, showing that the resistance was significantly higher in the nasal disease group. The resistance tended to decrease as the school grade increased. In the normal group, 290 children (33%) experienced no problem regarding the upper airway, such as snoring and sleep apnea syndrome, based on a questionnaire, and nasal resistance was 0.350.17Pa/cm3/s. Conclusion This normal nasal resistance value may be adopted for the objective evaluation of nasal obstruction and effects of treatment in pediatric nasal diseases.

Ryuichi Kobayashi; Soichiro Miyazaki; Masayuki Karaki; Eiji Kobayashi; Rie Karaki; Kosuke Akiyama; Ai Matsubara; Nozomu Mori

2011-01-01T23:59:59.000Z

257

Basin-Scale Hydrologic Impacts of CO2 Storage: Regulatory and Capacity Implications  

SciTech Connect (OSTI)

Industrial-scale injection of CO{sub 2} into saline sedimentary basins will cause large-scale fluid pressurization and migration of native brines, which may affect valuable groundwater resources overlying the deep sequestration reservoirs. In this paper, we discuss how such basin-scale hydrologic impacts can (1) affect regulation of CO{sub 2} storage projects and (2) may reduce current storage capacity estimates. Our assessment arises from a hypothetical future carbon sequestration scenario in the Illinois Basin, which involves twenty individual CO{sub 2} storage projects in a core injection area suitable for long-term storage. Each project is assumed to inject five million tonnes of CO{sub 2} per year for 50 years. A regional-scale three-dimensional simulation model was developed for the Illinois Basin that captures both the local-scale CO{sub 2}-brine flow processes and the large-scale groundwater flow patterns in response to CO{sub 2} storage. The far-field pressure buildup predicted for this selected sequestration scenario suggests that (1) the area that needs to be characterized in a permitting process may comprise a very large region within the basin if reservoir pressurization is considered, and (2) permits cannot be granted on a single-site basis alone because the near- and far-field hydrologic response may be affected by interference between individual sites. Our results also support recent studies in that environmental concerns related to near-field and far-field pressure buildup may be a limiting factor on CO{sub 2} storage capacity. In other words, estimates of storage capacity, if solely based on the effective pore volume available for safe trapping of CO{sub 2}, may have to be revised based on assessments of pressure perturbations and their potential impact on caprock integrity and groundwater resources, respectively. We finally discuss some of the challenges in making reliable predictions of large-scale hydrologic impacts related to CO{sub 2} sequestration projects.

Birkholzer, J.T.; Zhou, Q.

2009-04-02T23:59:59.000Z

258

Systems of Insulation Resistance Continuous Measurement  

Science Journals Connector (OSTI)

In this chapter several methods of continuous measurement of insulation resistance in AC IT systems are described. ... source is explained. Another method of continuous insulation resistance measurement is imposi...

Piotr Olszowiec

2013-01-01T23:59:59.000Z

259

Systems of Insulation Resistance Continuous Measurement  

Science Journals Connector (OSTI)

In this chapter several methods of continuous measurement of insulation resistance in AC IT systems are described. ... source is explained. Another method of continuous insulation resistance measurement is imposi...

Piotr Olszowiec

2014-01-01T23:59:59.000Z

260

Electric Resistance of Polytetrafluoroethylene under Shock Compression  

Science Journals Connector (OSTI)

The postshock resistivity of polytetrafluoroethylene is determined in the pressure range of 3563 GPa. The measurements were conducted using a cell 0.2 mm thick with uniform distribution of the resistivity over t...

S. A. Bordzilovskii; S. M. Karakhanov

2002-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydrological resistivity influenced" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

On the electric resistance of solid soap  

Science Journals Connector (OSTI)

Electrical resistance values are reported for soaps of various moisture contents. Marked changes in resistance were found at 4050C. Below this temperature the logarithm of conductivity is a linear function o...

Heihachi Ezaki; K. Ohwada; S. Noguchi

1959-06-01T23:59:59.000Z

262

Experimental and Simulation Study of Resistive Switches for Memory Applications  

E-Print Network [OSTI]

7, 8]), so that the resistance of the material will changebased Resistance change Memory Advanced Materials 2008, 20,material on the top, it effectively determines the overall resistance

Pan, Feng

2012-01-01T23:59:59.000Z

263

Coupled Geochemical and Hydrological Processes Governing the Fate and Transport of Radionuclides and Toxic Metals Beneath the Hanford Tank Farms  

SciTech Connect (OSTI)

The goal of this research was to provide an improved understanding and predictive capability of coupled hydrological and geochemical mechanisms that are responsible for the accelerated migration and immobilization of radionuclides and toxic metals in the badose zone beneath the Hanford Tank Farms.

Scott Fendorf; Phil Jardine

2006-07-21T23:59:59.000Z

264

S.J. Langan and D. Hirst Hydrology and Earth System Sciences, 8(3), 422435 (2004) EGU  

E-Print Network [OSTI]

S.J. Langan and D. Hirst 422 Hydrology and Earth System Sciences, 8(3), 422435 (2004) © EGU (Galloway, S.W. Scotland) under contrasting land management S.J. Langan1 and D. Hirst2 1 Macaulay Land Use 114, Blindern, N-0414 Oslo, Norway Email for corresponding author: s.langan@macaulay.ac.uk Abstract

Boyer, Edmond

265

Peatland carbon cycle responses to hydrological change at time scales from years to centuries: Impacts on model  

E-Print Network [OSTI]

Peatland carbon cycle responses to hydrological change at time scales from years to centuries: Impacts on model simulations and regional carbon budgets By Benjamin N. Sulman A dissertation submitted to the long-term storage of carbon in peat, these ecosystems contain a significant fraction of the global

Wisconsin at Madison, University of

266

The impact of groundwater-land surface interactions on hydrologic persistence in macroscale Elizabeth A. Clark and Dennis P. Lettenmaier  

E-Print Network [OSTI]

= layer depth z = depth to water table Commonalities: 1)Forcings: Precipitation, Tmax, Tmin, Wind 2)Sub-grid9.08 The impact of groundwater-land surface interactions on hydrologic persistence in macroscale and Energy Fluxes for GSMs, J. Geophys. Res., 99(D7), 14,415-14,428. Niu, G.-Y., Z.-L. Yang, R.E. Dickinson

Washington at Seattle, University of

267

Assessment of Basin-Scale Hydrologic Impacts of CO2 Sequestration, Illinois Basin1 Mark Person*1  

E-Print Network [OSTI]

: Mount Simon, Illinois Basin, CO2, earthquakes, pressure, brine transport69 #12;Page | 3 1. IntroductionPage | 1 Assessment of Basin-Scale Hydrologic Impacts of CO2 Sequestration, Illinois Basin1 2 3 4 sharp-interface models of CO2 injection were constructed for the Illinois49 Basin in which porosity

Gable, Carl W.

268

Monitoring Cracking of a Smectitic Vertisol using Three-dimensional Electrical Resistivity Tomography  

E-Print Network [OSTI]

Upon desiccation, the matrix of Vertisols and other expansive soils shrinks. Matrix shrinkage results in the formation of cracks that can alter the hydrology of the soil. Despite the importance of cracks, many hydrologic models do not account...

Ackerson, Jason Paul

2013-11-20T23:59:59.000Z

269

CORROSION RESISTANCE OF FISH TAGGING PINS  

E-Print Network [OSTI]

CORROSION RESISTANCE OF FISH TAGGING PINS [Marine Biological Laboratoryj WOODS HOLE, MASS. SPECIAL A, Seaton, Secretary Fish and Wildlife Service, Arnie J. Suoraela, Commissioner CORROSION RESISTANCE were tagged with nickel and Type 304 stainless steel pins to compare the corrosion resistance

270

On the Swelling Resistance of Ferritic Steel  

Science Journals Connector (OSTI)

...research-article On the Swelling Resistance of Ferritic Steel E. A...associated with void swelling resistance in FV448 martensitic stainless...and the associated swelling resistance in such b.c.c. materials is due to the relative rates...

1980-01-01T23:59:59.000Z

271

Hydrologic Nuclide Transport Models in Cyder, A Geologic Disposal Software Library - 13328  

SciTech Connect (OSTI)

Component level and system level abstraction of detailed computational geologic repository models have resulted in four rapid computational models of hydrologic radionuclide transport at varying levels of detail. Those models are described, as is their implementation in Cyder, a software library of interchangeable radionuclide transport models appropriate for representing natural and engineered barrier components of generic geology repository concepts. A proof of principle demonstration was also conducted in which these models were used to represent the natural and engineered barrier components of a repository concept in a reducing, homogenous, generic geology. This base case demonstrates integration of the Cyder open source library with the Cyclus computational fuel cycle systems analysis platform to facilitate calculation of repository performance metrics with respect to fuel cycle choices. (authors)

Huff, Kathryn D. [Argonne National Laboratory, 9700 S. Cass Ave, Argonne, IL (United States)] [Argonne National Laboratory, 9700 S. Cass Ave, Argonne, IL (United States)

2013-07-01T23:59:59.000Z

272

Gasbuggy, New Mexico Long-Term Hydrologic Monitoring Program Evaluation Report  

SciTech Connect (OSTI)

This report summarizes an evaluation of the Long-Term Hydrologic Monitoring Program (LTHMP) that has been conducted since 1972 at the Gasbuggy, New Mexico underground nuclear detonation site. The nuclear testing was conducted by the U.S. Atomic Energy Commission under the Plowshare program, which is discussed in greater detail in Appendix A. The detonation at Gasbuggy took place in 1967, 4,240 feet below ground surface, and was designed to fracture the host rock of a low-permeability natural gas-bearing formation in an effort to improve gas production. The site has historically been managed under the Nevada Offsites Project. These underground nuclear detonation sites are within the United States but outside of the Nevada Test Site where most of the experimental nuclear detonations conducted by the U.S. Government took place. Gasbuggy is managed by the U.S. Department of Energy (DOE) Office of Legacy Management (LM ).

None

2009-06-01T23:59:59.000Z

273

Studies on unsaturated zone hydrology and radionuclide migration at a shallow-land burial site  

SciTech Connect (OSTI)

We studied unsaturated zone hydrology and the migration of radionuclides at a shallow-land burial site located at Maxey Flats, Kentucky. The initial results indicate that the principal pathway of water entry into the trench was by percolation through the trench caps. Tritium-bearing water was found to be moving upward from a saturated waste-burial trench through the trench cap to the soil surface. Evidence of tritium movement at a depth of 3 to 4 meters was observed to a distance of about 5 meters laterally. No /sup 137/Cs migration was observed, but very small amounts of /sup 238/Pu and /sup 60/Co were found to have migrated short distances from the trench.

Schulz, R.K. (Univ. of California, Berkeley); Fowler, E.B.; Essington, E.H.; Polzer, W.L.

1981-07-01T23:59:59.000Z

274

Hydrological and geochemical monitoring for a CO2 sequestration pilot in a brine formation  

SciTech Connect (OSTI)

Hydrological and geochemical monitoring are key components of site characterization and CO2 plume monitoring for a pilot test to inject CO2 into a brine-bearing sand of the fluvial-deltaic Frio formation in the upper Texas Gulf Coast. In situ, injected CO2 forms a supercritical phase that has gas-like properties (low density and viscosity) compared to the surrounding brine, while some CO2 dissolves in the brine. The pilot test employs one injection well and one monitor well, with continuous pressure and flow-rate monitoring in both wells, and continuous surface fluid sampling and periodic down-hole fluid sampling from the monitor well. Pre-injection site-characterization includes pump tests with pressure-transient analysis to estimate single-phase flow properties, establish hydraulic connectivity between the wells, determine appropriate boundary conditions, and analyze ambient phase conditions within the formation. Additionally, a pre-injection tracer test furnishes estimates of kinematic porosity and the geometry of flow paths between injection and monitor wells under single-phase conditions. Pre-injection geochemical sampling provides a baseline for subsequent geochemical monitoring and helps determine the optimal tracers to accompany CO2 injection. During CO2 injection, hydrological monitoring enables estimation of two-phase flow properties and helps track the movement of the injected CO2 plume, while geochemical sampling provides direct evidence of the arrival of CO2 and tracers at the monitor well. Furthermore, CO2-charged water acts as a weak acid, and reacts to some extent with the minerals in the aquifer, producing a distinct chemical signature in the water collected at the monitor well. Comparison of breakthrough curves for the single-phase tracer test and the CO2 (and its accompanying tracers) illuminates two-phase flow processes between the supercritical CO2 and native brine, an area of current uncertainty that must be better understood to effectively sequester CO2 in saline aquifers.

Doughty, Christine; Pruess, Karsten; Benson, Sally M.; Freifeld, Barry M.; Gunter, William D.

2004-05-17T23:59:59.000Z

275

Potential hydrologic effects of developing coal and other geoenergy resources in Oregon: a review  

SciTech Connect (OSTI)

Geoenergy resources in Oregon, in addition to coal, include noncommercial deposits of oil shale, natural gas, and geothermal heat. Commercial quantities of natural gas were discovered at Mist in northwestern Oregon in 1979. Gas presently is being produced from five wells and additional exploratory drilling is underway. More than 2 million acres of Oregon land is under lease for petroleum and natural gas exploration, mostly in the Astoria embayment-Willamette syncline, central (Oregon) Paleozoic-Mesozoic basin, and eastern Tertiary nonmarine basin. The Cascade Range and eastern Oregon contain sizable resources of geothermal heat, of which a small part has been developed for space heating at Klamath Falls and Lakeview. Thirteen Known Geothermal Resource Areas (KGRA's) comprising 432,000 acres have been identified, 422,000 acres are currently leased for geothermal development. KGRA's judged to have potential for generation of electrical power are Newberry Crater, Crump Geyser, and Alvord Desert. No adverse hydrologic effects have been noted to date from coal or other geoenergy exploration or development in Oregon, and no effects are expected if federal and state regulations are adhered to. The southwestern Oregon coals would have to be mined by underground methods. Potential hydrologic impacts would be local increases in sedimentation, turbidity, and mineralization of surface and ground water. Water-quality degradation, including both thermal pollution and increased concentrations of dissolved minerals, could result from geothermal development. Other potential problems include land subsidence and consumptive use of water associated with both coal and geothermal development. 53 refs., 3 figs., 1 tab.

Sidle, W.C.

1981-01-01T23:59:59.000Z

276

Waste Isolation Pilot Plant Salado hydrology program data report No. 2  

SciTech Connect (OSTI)

WIPP Salado Hydrology Program Data Report [number sign]2 presents hydrologic data collected during permeability testing of the Salado Formation performed from August 1989 through July 1992. The report presents the results of the drilling and testing of six boreholes drilled from the WIPP underground facility 655 m below ground surface in the Salado Formation. Permeability tests were conducted using multipacker test tools with inflatable packers to isolate borehole intervals to allow formation pore-pressure buildup and subsequent pressure-pulse and constant-pressure-withdrawal tests. The tests performed in boreholes L4P51, L4P52, SCP01, S1P71, S1P72, an S1P73 involved Marker Beds 138 and 139, anhydrites a,'' b,'' and c,'' clays B, D, E, G, H, J, and K, and several halitic strata. Test data include pressure and temperature from the brine-filled, packer- isolated test intervals, fluid and gas production during constant- pressure-withdrawal tests, and borehole-closure and axial test tool- movement measurements. The boreholes were drilled and/or cored to nominal 10.2-cm diameters using compressed air to remove drill cuttings. Compliance tests were conducted in lengths of steel and stainless-steel casing to evaluate the mechanical performance of the multipacker test tools. Compliance tests included leak tests and pulse-injection and pulse-withdrawal sequences. Following permeability testing, fluid pressures were monitored in packer- isolated sections of test boreholes C2H01, C2H02, SCP01, SlP71, SlP72, DPD01, DPD02, and DPD03.

Stensrud, W.A.; Dale, T.F.; Domski, P.S.; Palmer, J.B.; Roberts, R.M.; Fort, M.D.; Saulnier, G.J. Jr. (INTERA, Inc., Austin, TX (United States)); Jensen, A.L. (Sandia National Labs., Albuquerque, NM (United States))

1992-12-01T23:59:59.000Z

277

Waste Isolation Pilot Plant Salado hydrology program data report No. 2  

SciTech Connect (OSTI)

WIPP Salado Hydrology Program Data Report {number_sign}2 presents hydrologic data collected during permeability testing of the Salado Formation performed from August 1989 through July 1992. The report presents the results of the drilling and testing of six boreholes drilled from the WIPP underground facility 655 m below ground surface in the Salado Formation. Permeability tests were conducted using multipacker test tools with inflatable packers to isolate borehole intervals to allow formation pore-pressure buildup and subsequent pressure-pulse and constant-pressure-withdrawal tests. The tests performed in boreholes L4P51, L4P52, SCP01, S1P71, S1P72, an S1P73 involved Marker Beds 138 and 139, anhydrites ``a,`` ``b,`` and ``c,`` clays B, D, E, G, H, J, and K, and several halitic strata. Test data include pressure and temperature from the brine-filled, packer- isolated test intervals, fluid and gas production during constant- pressure-withdrawal tests, and borehole-closure and axial test tool- movement measurements. The boreholes were drilled and/or cored to nominal 10.2-cm diameters using compressed air to remove drill cuttings. Compliance tests were conducted in lengths of steel and stainless-steel casing to evaluate the mechanical performance of the multipacker test tools. Compliance tests included leak tests and pulse-injection and pulse-withdrawal sequences. Following permeability testing, fluid pressures were monitored in packer- isolated sections of test boreholes C2H01, C2H02, SCP01, SlP71, SlP72, DPD01, DPD02, and DPD03.

Stensrud, W.A.; Dale, T.F.; Domski, P.S.; Palmer, J.B.; Roberts, R.M.; Fort, M.D.; Saulnier, G.J. Jr. [INTERA, Inc., Austin, TX (United States); Jensen, A.L. [Sandia National Labs., Albuquerque, NM (United States)

1992-12-01T23:59:59.000Z

278

Application of a medium-range global hydrologic probabilistic forecast scheme to the Ohio River Basin  

SciTech Connect (OSTI)

A 10-day globally applicable flood prediction scheme was evaluated using the Ohio River basin as a test site for the period 2003-2007. The Variable Infiltration Capacity (VIC) hydrology model was initialized with the European Centre for Medium Range Weather Forecasts (ECMWF) analysis temperatures and wind, and Tropical Rainfall Monitoring Mission Multi Satellite Precipitation Analysis (TMPA) precipitation up to the day of forecast. In forecast mode, the VIC model was then forced with a calibrated and statistically downscaled ECMWF ensemble prediction system (EPS) 10-day ensemble forecast. A parallel set up was used where ECMWF EPS forecasts were interpolated to the spatial scale of the hydrology model. Each set of forecasts was extended by 5 days using monthly mean climatological variables and zero precipitation in order to account for the effect of initial conditions. The 15-day spatially distributed ensemble runoff forecasts were then routed to four locations in the basin, each with different drainage areas. Surrogates for observed daily runoff and flow were provided by the reference run, specifically VIC simulation forced with ECMWF analysis fields and TMPA precipitation fields. The flood prediction scheme using the calibrated and downscaled ECMWF EPS forecasts was shown to be more accurate and reliable than interpolated forecasts for both daily distributed runoff forecasts and daily flow forecasts. Initial and antecedent conditions dominated the flow forecasts for lead times shorter than the time of concentration depending on the flow forecast amounts and the drainage area sizes. The flood prediction scheme had useful skill for the 10 following days at all sites.

Voisin, Nathalie; Pappenberger, Florian; Lettenmaier, D. P.; Buizza, Roberto; Schaake, John

2011-08-15T23:59:59.000Z

279

The Hydrological Impact of Geoengineering in the Geoengineering Model Intercomparison Project (GeoMIP)  

SciTech Connect (OSTI)

Abstract: The hydrologic impact of enhancing Earths albedo due to solar radiation management (SRM) is investigated using simulations from 12 models contributing to the Geoengineering Model Intercomparison Project (GeoMIP). An artificial experiment is investigated, where global mean temperature is preserved at pre-industrial conditions, while atmospheric carbon dioxide concentrations are quadrupled. The associated reduction of downwelling surface solar radiation in a high CO2 environment leads to a reduction of global evaporation of 10% and 4% and precipitation of 6.1% and 6.3% over land and ocean, respectively. An initial reduction of latent heat flux at the surface is largely driven by reduced evapotranspiration over land with instantly increasing CO2 concentrations in both experiments. A warming surface associated with the transient adjustment in the 4xCO2 experiment further generates an increase of global precipitation, with considerable regional changes, such as a significant precipitation reduction of 7% for the North American summer monsoon. Reduced global precipitation persists in the geoengineered experiment where temperatures are stabilized, with considerable regional rainfall deficits. Precipitation reductions that are consistent in sign across models are identified in the geoengineered experiment over monsoonal land regions of East Asia (6%), North America (7%), South America (6%) and South Africa (5%). In contrast to the 4xCO2 experiment, where the frequency of months with heavy precipitation intensity is increased by over 50%, it is reduced by up to 20% in the geoengineering scenario . The reduction in heavy precipitation is more pronounced over land than over the ocean, and accompanies a stronger reduction in evaporation over land. For northern mid-latitudes, maximum precipitation reduction over land ranges from 1 to 16% for individual models. For 45-65N, the frequency of median to high intensity precipitation in summer is strongly reduced. These changes in precipitation in both total amount and frequency of extremes, point to a considerable weakening of the hydrological cycle in a geoengineered world.

Tilmes, S.; Fasullo, John; Lamarque, J.-F.; Marsh, D.; Mills, Mike; Alterskjaer, Kari; Muri, Helene O.; Kristjansson, Jon E.; Boucher, Olivier; Schulz, M.; Cole, Jason N.; Curry, Charles L.; Jones, A.; Haywood, J.; Irvine, Peter; Ji, Duoying; Moore, John; Bou Karam, Diana; Kravitz, Benjamin S.; Rasch, Philip J.; Singh, Balwinder; Yoon, Jin-Ho; Niemeier, Ulrike; Schmidt, Hauke; Robock, Alan; Yang, Shuting; Watanabe, Shingo

2013-10-14T23:59:59.000Z

280

Analysis of flash flood-triggering rainfall for a process-oriented hydrological model  

Science Journals Connector (OSTI)

Abstract We propose an extended study of recent flood-triggering storms and resulting hydrological responses for catchments in the Pyrenean foothills up to the Aude region. For hydrometeorological sciences, it appears relevant to characterize flash floods and the storm that triggered them over various temporal and spatial scales. There are very few studies of extreme storm-caused floods in the literature covering the Mediterranean and highlighting, for example, the quickness and seasonality of this natural phenomenon. The present analysis is based on statistics that clarify the dependence between the spatial and temporal distributions of rainfall at catchment scale, catchment morphology and runoff response. Given the specific space and time scales of rainfall cell development, we show that the combined use of radar and a rain gauge network appears pertinent. Rainfall depth and intensity are found to be lower for catchments in the Pyrenean foothills than for the nearby Corbires or Montagne Noire regions. We highlight various hydrological behaviours and show that an increase in initial soil saturation tends to foster quicker catchment flood response times, of around 3 to 10h. The hydrometeorological data set characterized in this paper constitutes a wealth of information to constrain a physics-based distributed model for regionalization purposes in the case of flash floods. Moreover, the use of diagnostic indices for rainfall distribution over catchment drainage networks highlights a unimodal trend in spatial temporal storm distributions for the entire flood dataset. Finally, it appears that floods in mountainous Pyrenean catchments are generally triggered by rainfall near the catchment outlet, where the topography is lower.

P.A. Garambois; K. Larnier; H. Roux; D. Labat; D. Dartus

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydrological resistivity influenced" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Student resistance to journal writing  

E-Print Network [OSTI]

58 60 61 LIST OF TABLES Table 1: Taxonomy. Table 2: Responses to Question Two Table 3: Coding Scheme for Question Three. Table 4: Responses to Question Three Table 5: Responses to Question Four. Table 6: Responses to Question Five. Table 7... of eight content questions about students' attitudes toward and resistance to journal writing. The responses rendered specific details in the following five areas: 1. How many students keep journals without being required, and how students feel about...

Ingram, Gynger Lynne

1991-01-01T23:59:59.000Z

282

Resistance of a water spark.  

SciTech Connect (OSTI)

The later time phase of electrical breakdown in water is investigated for the purpose of improving understanding of the discharge characteristics. One dimensional simulations in addition to a zero dimensional lumped model are used to study the spark discharge. The goal is to provide better electrical models for water switches used in the pulse compression section of pulsed power systems. It is found that temperatures in the discharge channel under representative drive conditions, and assuming small initial radii from earlier phases of development, reach levels that are as much as an order of magnitude larger than those used to model discharges in atmospheric gases. This increased temperature coupled with a more rapidly rising conductivity with temperature than in air result in a decreased resistance characteristic compared to preceding models. A simple modification is proposed for the existing model to enable the approximate calculation of channel temperature and incorporate the resulting conductivity increase into the electrical circuit for the discharge channel. Comparisons are made between the theoretical predictions and recent experiments at Sandia. Although present and past experiments indicated that preceding late time channel models overestimated channel resistance, the calculations in this report seem to underestimate the resistance relative to recent experiments. Some possible reasons for this discrepancy are discussed.

Warne, Larry Kevin; Jorgenson, Roy Eberhardt; Lehr, Jane Marie

2005-11-01T23:59:59.000Z

283

Electric Resistance Heating Basics | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Electric Resistance Heating Basics Electric Resistance Heating Basics Electric Resistance Heating Basics August 16, 2013 - 3:10pm Addthis Electric resistance heat can be supplied by centralized forced-air electric furnaces or by heaters in each room. Electric resistance heating converts nearly all of the energy in the electricity to heat. Types of Electric Resistance Heaters Electric resistance heat can be provided by electric baseboard heaters, electric wall heaters, electric radiant heat, electric space heaters, electric furnaces, or electric thermal storage systems. Electric Furnaces With electric furnaces, heated air is delivered throughout the home through supply ducts and returned to the furnace through return ducts. Blowers (large fans) in electric furnaces move air over a group of three to seven

284

Electric Resistance Heating Basics | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Electric Resistance Heating Basics Electric Resistance Heating Basics Electric Resistance Heating Basics August 16, 2013 - 3:10pm Addthis Electric resistance heat can be supplied by centralized forced-air electric furnaces or by heaters in each room. Electric resistance heating converts nearly all of the energy in the electricity to heat. Types of Electric Resistance Heaters Electric resistance heat can be provided by electric baseboard heaters, electric wall heaters, electric radiant heat, electric space heaters, electric furnaces, or electric thermal storage systems. Electric Furnaces With electric furnaces, heated air is delivered throughout the home through supply ducts and returned to the furnace through return ducts. Blowers (large fans) in electric furnaces move air over a group of three to seven

285

Sorghum resistance to yellow sugarcane aphid (Homoptera: Aphididae)  

E-Print Network [OSTI]

to Insects Yellow Sugarcane Aphid III MATERIALS AND METHODS 15 20 Plant Height and Aphid Numbers Most Appropriate for Resistance Screening . Assessment of Mechanisms of Resistance 29 30 Antixenosis Resistance Antibiosis Resistance 30 33... to Insects Yellow Sugarcane Aphid III MATERIALS AND METHODS 15 20 Plant Height and Aphid Numbers Most Appropriate for Resistance Screening . Assessment of Mechanisms of Resistance 29 30 Antixenosis Resistance Antibiosis Resistance 30 33...

Paliani, Anderson Lawson Pilato

2012-06-07T23:59:59.000Z

286

An equivalent network for resistance and temperature coefficient of resistance versus temperature and composition of thick resistive films  

Science Journals Connector (OSTI)

Two types of elementary resistances in thick resistive films have been considered: (i) constriction resistance R C determined by the bulk properties of conducting material and by the geometry of constriction and (ii) barrier resistance R B determined by the parameters of a thermally activated type of tunneling process and by the geometry of the metal?insulator?metal unit. On this basis a resistance network composed of a large number of the two types of resistances has been defined. The network has been considered as being equivalent to thick resistive film (TRF) from the point of view of the resistance and temperature coefficient of resistance (TCR). The parameters of this network have been evaluated by the computer?aided approximation of the experimental data found for RuO2?based TRFs. On the basis of the equations derived for the network as well as the results of the approximation process it can be concluded that the small values of the network TCR result from the superposition of the TCR of the conducting component ? C and of the temperature coefficient of barrier resistance ? B . In this superposition ? C is attenuated (by 12 orders of magnitude) while ? B is attenuated by only few percentages. The network has been found to be strongly barrier dominated.

A. Kusy

1987-01-01T23:59:59.000Z

287

The Influence of Heat Transfer Irreversibilities on the Optimal Performance of Diabatic  

E-Print Network [OSTI]

The Influence of Heat Transfer Irreversibilities on the Optimal Performance of Diabatic is only slightly dependent on the heat transfer law considered. In the limit of an infinite number of trays even this column with resistance to transfer of heat becomes reversible. 1 #12;Keywords Diabatic

Salamon, Peter

288

Geophysical Prospecting, 2006, 54, 565573 Influence of pore pressure on velocity in low-porosity sandstone  

E-Print Network [OSTI]

than unity for low-porosity rocks and that it varies with porosity, rock texture and wave type. We Pressure strongly influences the mechanical and transport properties of rocks, such as porosity, velocity, permeability and resistivity. In a fluid-saturated rock, both pore pressure and confining pressure control

289

Resistivity measurements of halide-salt/MgO separators for thermal cells  

SciTech Connect (OSTI)

Resistivities of 20 compositions of halide-salt/MgO mixtures (various selections and percentages of LiF, LiCl, LiBr, KCl, KBr, CsBr, and MgO) to be used in Li-alloy/metal sulfide cells have been measured at temperatures between the melting point of a particular mixture and 500{degrees}C. The resistivities were determined with cold-pressed electrolyte-binder pellets by using a special cell and DC measuring technique. Temperature, salt composition, and MgO content were found to have a strong influence on resistivity. These factors are listed in decreasing order of the magnitude of the effect. The fabrication density (porosity) of the pellet also has some effect on resistivity. These measured resistivities provide a data base to select optimum compositions of electrolyte-binder pellets for LiSi/FeS{sub 2} thermal batteries and to calculate area-specific resistances of these components for battery modeling and optimization. 5 refs., 7 figs.

Redey, L.; McParland, M. (Argonne National Lab., IL (USA)); Guidotti, R. (Sandia National Labs., Albuquerque, NM (USA))

1990-01-01T23:59:59.000Z

290

Thermal Shock-resistant Cement  

SciTech Connect (OSTI)

We studied the effectiveness of sodium silicate-activated Class F fly ash in improving the thermal shock resistance and in extending the onset of hydration of Secar #80 refractory cement. When the dry mix cement, consisting of Secar #80, Class F fly ash, and sodium silicate, came in contact with water, NaOH derived from the dissolution of sodium silicate preferentially reacted with Class F fly ash, rather than the #80, to dissociate silicate anions from Class F fly ash. Then, these dissociated silicate ions delayed significantly the hydration of #80 possessing a rapid setting behavior. We undertook a multiple heating -water cooling quenching-cycle test to evaluate the cements resistance to thermal shock. In one cycle, we heated the 200 and #61616;C-autoclaved cement at 500 and #61616;C for 24 hours, and then the heated cement was rapidly immersed in water at 25 and #61616;C. This cycle was repeated five times. The phase composition of the autoclaved #80/Class F fly ash blend cements comprised four crystalline hydration products, boehmite, katoite, hydrogrossular, and hydroxysodalite, responsible for strengthening cement. After a test of 5-cycle heat-water quenching, we observed three crystalline phase-transformations in this autoclaved cement: boehmite and #61614; and #61543;-Al2O3, katoite and #61614; calcite, and hydroxysodalite and #61614; carbonated sodalite. Among those, the hydroxysodalite and #61614; carbonated sodalite transformation not only played a pivotal role in densifying the cementitious structure and in sustaining the original compressive strength developed after autoclaving, but also offered an improved resistance of the #80 cement to thermal shock. In contrast, autoclaved Class G well cement with and without Class F fly ash and quartz flour failed this cycle test, generating multiple cracks in the cement. The major reason for such impairment was the hydration of lime derived from the dehydroxylation of portlandite formed in the autoclaved cement, causing its volume to expand.

Sugama T.; Pyatina, T.; Gill, S.

2012-02-01T23:59:59.000Z

291

Coatings for improved corrosion resistance  

SciTech Connect (OSTI)

Several coating approaches are being developed to resist attack in coal-fired environments and thereby minimize corrosion of underlying substrate alloys and extend the time for onset of breakaway corrosion. In general, coating systems can be classified as either diffusion or overlay type, which are distinguished principally by the method of deposition and the structure of the resultant coating-substrate bond. The coating techniques examined are pack cementation, electrospark deposition, physical and chemical vapor deposition, plasma spray, and ion implantation. In addition, ceramic coatings are used in some applications.

Natesan, K.

1992-05-01T23:59:59.000Z

292

Attrition resistant fluidizable reforming catalyst  

DOE Patents [OSTI]

A method of preparing a steam reforming catalyst characterized by improved resistance to attrition loss when used for cracking, reforming, water gas shift and gasification reactions on feedstock in a fluidized bed reactor, comprising: fabricating the ceramic support particle, coating a ceramic support by adding an aqueous solution of a precursor salt of a metal selected from the group consisting of Ni, Pt, Pd, Ru, Rh, Cr, Co, Mn, Mg, K, La and Fe and mixtures thereof to the ceramic support and calcining the coated ceramic in air to convert the metal salts to metal oxides.

Parent, Yves O. (Golden, CO); Magrini, Kim (Golden, CO); Landin, Steven M. (Conifer, CO); Ritland, Marcus A. (Palm Beach Shores, FL)

2011-03-29T23:59:59.000Z

293

Hydrologic Data for the Groundwater Flow and Contaminant Transport Model of Corrective Action Units 101 and 102: Central and Western Pahute Mesa, Nye County, Nevada, Revision 0  

SciTech Connect (OSTI)

This report documents the analysis of the available hydrologic data conducted in support of the development of a Corrective Action Unit (CAU) groundwater flow model for Central and Western Pahute Mesa: CAUs 101 and 102.

Drici, Warda

2004-02-01T23:59:59.000Z

294

Investigating the Ability of a Land Surface Model to Simulate Streamflow with the Accuracy of Hydrological Models: A Case Study Using MOPEX Materials  

Science Journals Connector (OSTI)

In the Model Parameter Estimation Experiment (MOPEX) project, after calibration of model parameters, complex rainfallrunoff hydrological models (HMs) simulated streamflow better than land surface models (LSMs), including the SoilWater...

Olga N. Nasonova; Yeugeniy M. Gusev; Yeugeniy E. Kovalev

2009-10-01T23:59:59.000Z

295

Toward evaluating the effect of climate change on investments in the water resources sector: insights from the forecast and analysis of hydrological indicators in developing countries  

E-Print Network [OSTI]

The World Bank has recently developed a method to evaluate the effects of climate change on six hydrological indicators across 8951 basins of the world. The indicators are designed for decision-makers and stakeholders to ...

Jacobsen, Michael

296

Suitability of Hydrologic Evaluation of Landfill Performance (HELP) model of the US Environmental Protection Agency for the simulation of the water balance of landfill cover systems  

Science Journals Connector (OSTI)

?Cover systems are widely used to safeguard landfills and contaminated sites. The evaluation of the ... water balance is crucial for the design of landfill covers. The Hydrologic Evaluation of Landfill Performanc...

K. Berger; S. Melchior; G. Miehlich

1996-12-01T23:59:59.000Z

297

A Long-Term Hydrologically Based Dataset of Land Surface Fluxes and States for the Conterminous United States: Update and Extensions  

Science Journals Connector (OSTI)

This paper describes a publicly available, long-term (19152011), hydrologically consistent dataset for the conterminous United States, intended to aid in studies of water and energy exchanges at the land surface. These data are gridded at a ...

Ben Livneh; Eric A. Rosenberg; Chiyu Lin; Bart Nijssen; Vimal Mishra; Kostas M. Andreadis; Edwin P. Maurer; Dennis P. Lettenmaier

2013-12-01T23:59:59.000Z

298

A summary and discussion of hydrologic data from the Calico Hills nonwelded hydrogeologic unit at Yucca Mountain, Nevada  

SciTech Connect (OSTI)

This report is a summary of available hydrologic data from in situ and laboratory testing of the Calico Hills nonwelded hydrogeologic unit, including hydraulic conductivity, porosity, saturation, pore-size distribution and parameters from curve-fits to pressure-saturation data. Sample statistics of hydraulic conductivity, porosity and saturation data for vitric, devitrified and zeolitic tuffs are presented and discussed. While a high degree of variability is observed in both laboratory and in situ hydraulic conductivity measurements, uncertainties arising from differences in size of laboratory test samples, sample handling, test procedures and insufficient number of samples point to the need for additional data of specific types to adequately characterize the unit. Hydrologic issues related to transport analysis in the Calico Hills nonwelded hydrogeologic unit at Yucca Mountain are discussed together with recommendations for future work. The compiled data are included as an appendix.

Loeven, C.

1993-01-01T23:59:59.000Z

299

Reducing local hydrology from high-precision gravity measurements: a lysimeter-based approach  

Science Journals Connector (OSTI)

......Neglecting global water mass conservation may result in an overestimation...The influence of water mass conservation on the large-scale...1190/1.2980395. Pool D.R. , 2008. The utility of gravity and water-level monitoring......

Benjamin Creutzfeldt; Andreas Gntner; Hartmut Wziontek; Bruno Merz

2010-10-01T23:59:59.000Z

300

A simple hydrologic framework for simulating wetlands in climate and earth system models  

Science Journals Connector (OSTI)

Wetlands are ecosystems of important functions in the earths climate system. Through relatively high evapotranspiration, they affect surface water and energy exchange with the atmosphere directly influencing ...

Ying Fan; Gonzalo Miguez-Macho

2011-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydrological resistivity influenced" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Influence of the 11year solar cycle on annual streamflow maxima in Southern Canada  

Science Journals Connector (OSTI)

Summary The re-occurrence pattern of major extremes in hydrology, such as the timing and intensity of river floods, is related to a variety of natural and anthropogenic factors. In this study, the particular temporal regional influence of ?11year solar radiation cyclicities on the maximum annual streamflow (MAS) records from six stations from four eco-zones in Southern Canada were investigated. Wavelet analysis decomposition and re-composition techniques were applied to extract the ?11year signals in the hydrological records. An ?11year cyclicity is evident in all eco-zones but it is superimposed by non-periodic variability in the 2 to 18year wavebands that are due to El Nino/Southern Oscillation and North Atlantic Oscillation related precipitation variability or random components in the records. The ?11year MAS cyclicity is strong in the Mountain ecozone (Rocky Mountains) and less strong in the Boreal Shield. In these eco-zones, it was found that years that experienced major floods were most likely to occur during low sunspot number years, in the spring time approximately 67years after the last solar maximum. The results of the wavelet analysis demonstrate that major floods are more likely to occur during sunspot cycles with relatively low sunspot numbers after the last maximum.

Andreas Prokoph; Jan Adamowski; Kaz Adamowski

2012-01-01T23:59:59.000Z

302

Electric Resistance Heating | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Electric Resistance Heating Electric Resistance Heating Electric Resistance Heating June 24, 2012 - 4:51pm Addthis Baseboard heaters are one type of electric resistance heaters. | Photo courtesy of ©iStockphoto/drewhadley Baseboard heaters are one type of electric resistance heaters. | Photo courtesy of ©iStockphoto/drewhadley Electric resistance heating converts nearly 100% of the energy in the electricity to heat. However, most electricity is produced from coal, gas, or oil generators that convert only about 30% of the fuel's energy into electricity. Because of electricity generation and transmission losses, electric heat is often more expensive than heat produced in the home or business using combustion appliances, such as natural gas, propane, and oil furnaces. If electricity is the only choice, heat pumps are preferable in most

303

Modeling the thermal-hydrologic processes in a large-scale underground heater test in partially saturated fractured tuff  

SciTech Connect (OSTI)

The Drift Scale Test (DST) is being conducted in an underground facility at Yucca Mountain, Nevada, to probe the coupled thermal, hydrological, mechanical, and chemical processes likely to occur in the fractured rock mass around a potential high-level nuclear waste repository. Thermal-hydrological processes in the DST have been simulated using a three-dimensional numerical model. The model incorporates the realistic test configuration and all available site-specific measurements pertaining to the thermal and hydrological properties of the unsaturated fractured tuff of the test block. The modeled predictions were compared to the extensive set of measured data collected in the first year of this 8-year-long test. The mean error between the predictions and measurement at 12 months of heating for over 1600 temperature sensors is about 2 degrees C. Heat-pipe signature in the temperature data, indicating two-phase regions of liquid-vapor counterflow, is seen in both the measurements and simulated results. The redistribution of moisture content in the rock mass (resulting from vaporization and condensation) was probed by periodic air-injection testing and geophysical measurements. Good agreement also occurred between the model predictions and these measurements. The general agreement between predictions from the numerical simulations and the measurements of the thermal test indicates that our fundamental understanding of the coupled thermal-hydrologic processes at Yucca Mountain is sound. However, effects of spatial heterogeneity from discrete fractures that are observed in the temperature data are not matched by simulations from the numerical model, which treat the densely spaced fractures as a continuum.

Birkholzer, J.T.; Tsang, Y.W.

1999-06-24T23:59:59.000Z

304

Clothes That Care -- Flame Resistant Protection.  

E-Print Network [OSTI]

.. 8-1272 othes That Care- Flame Resistant Protection" TOoe ZTA245.7 8873 NQ.'2'T2 Texas Agricultural Extension Service . The Texas A&M University System Daniel C. Pfannstiel, Director, College Station, Texas , ? Clothes That Care- Flame... Resistant Protection Claudia Kerbel * Concern for a safer environment has led to changes in many of the everyday products we use , including clothing . In the' past dec ade, flame-resistant (FR) garments and fabrics have become more available than ever...

Kerbel, Claudia

1980-01-01T23:59:59.000Z

305

Electrical resistance of Evanohm under pressure  

Science Journals Connector (OSTI)

The electrical resistance of Evanohm wire has been determined as a function of hydrostatic pressure. A Teflon cell with a novel type of electrical feedthrough was used to contain the fluid medium. The resistance was found to decrease approximately linearly by 0.3% up to 27 kilobar. The remarkably small variation of its resistance with temperature and pressure makes Evanohm a suitable material for strain measurements under pressure.

P. Andersson; G. Bckstrm

1975-01-01T23:59:59.000Z

306

Sensing of buried wastes through resistivity measurements  

E-Print Network [OSTI]

variation, utilizing hole-to-surface or hole-to-hole electrical resistivity measurements for mapping the ground water contaminated zones. Experimental work to test the technique has been conducted in the laboratory with an acrylic tank, using linear... determining the electric potential distribution in a half space given the locations and resistivities of various anomalies within the half- space. Using the measured potential data, the program will calculate the apparent resistivity distribution...

Reddy, Bollam Muralidhar

2012-06-07T23:59:59.000Z

307

An analysis of the hydrologic effects of proposed test drilling in the Winema National Forest near Crater Lake, Oregon  

SciTech Connect (OSTI)

This paper describes the results of a preliminary study on the hydrologic regime underlying the Crater Lake Caldera, Oregon. The study was performed to provide a basis for evaluating the potential for polluting Crater Lake by drilling exploratory boreholes on the flanks of the mountain. A simple conceptual model of the hydrologic regime was developed by synthesizing the data from the region surrounding the Caldera. Based on the conceptual model, a series of numerical simulations aimed at establishing the basic groundwater flow patterns under and surrounding the lake were performed. In addition to the numerical simulations, we used simple volumetric techniques for estimating the distance that drilling mud would migrate away from the borehole if drilling proceeded without drilling fluid returns. Based on our calculations that show the regional flow of groundwater will oppose the flow of drilling mud toward the lake, and based on our volumetric estimate of drilling mud migration, our study concludes that drilling without returns will not pollute Crater Lake, nor will it affect the hydrologic regime in the immediate vicinity of the Crater Lake Caldera.

Sammel, E.A.; Benson, S.

1987-07-01T23:59:59.000Z

308

Crosswell Electromagnetic Resistivity Imaging: Illuminating the Reservior |  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Crosswell Electromagnetic Resistivity Imaging: Illuminating the Reservior Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Crosswell Electromagnetic Resistivity Imaging: Illuminating the Reservior Published Middle East Asia Reservior Reviiew, 2006 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Crosswell Electromagnetic Resistivity Imaging: Illuminating the Reservior Citation Crosswell Electromagnetic Resistivity Imaging: Illuminating the Reservior [Internet]. 2006. Middle East Asia Reservior Reviiew. [cited 2013/10/22]. Available from: http://www.slb.com/~/media/Files/resources/mearr/num7/illuminating_reservoir.pdf Retrieved from

309

High Temperature Oxidation Resistance and Surface Electrical...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

plates with oxidation resistant coatings. Candidate coatings must exhibit chemical and thermal-mechanical stability and high electrical conductivity during long-term...

310

THE RESISTANCE OF MARINE ZOOPLANKTON OF THE ...  

Science Journals Connector (OSTI)

THE RESISTANCE OF MA-RINE ZOOPLANKTON. OF THE CARIBBEAN. AND SOUTH ATLANTIC. TO CHANGES IN SALINITY'. Arthur F. Hopper. Department of

311

Resistive MSGC with double layered electrodes  

E-Print Network [OSTI]

The first successful attempts to optimize the electric field in Resistive Microstrip Gas Chamber (RMSGC) using additional field shaping strips located inside the detector substrate are described.

Oliveira, R; Peskov, V

2014-01-01T23:59:59.000Z

312

Resistivity sections, Upper Arkansas River Basin, Colorado |...  

Open Energy Info (EERE)

Conservancy District, and the Colorado Division of Water Resources, Colorado State Engineer. As part of the investigation, surface geophysical electrical resistivity surveys...

313

Optimal operation of hydrothermal systems with Hydrological Scenario Generation through Bootstrap and Periodic Autoregressive Models  

Science Journals Connector (OSTI)

In electrical power systems with strong hydro generation, the use of adequate techniques to generate synthetic hydrological scenarios is extremely important for the evaluation of the ways the system behaves in order to meet the forecast energy demand. This paper proposes a new model to generate natural inflow energy scenarios in the long-term operation planning of large-sized hydrothermal systems. This model is based on the Periodic Autoregressive Model, PAR (p), where the identification of the p orders is based on the significance of the Partial Autocorrelation Function (PACF) estimated via Bootstrap, an intensive computational technique. The scenarios generated through this new technique were applied to the operation planning of the Brazilian Electrical System (BES), using the previously developed methodology of Stochastic Dynamic Programming based on Convex Hull algorithm (SDP-CHull). The results show that identification via Bootstrap is considerably more parsimonious, leading to the identification of lower orders models in most cases which retains the statistical characteristics of the original series. Additionally it presents a closer total mean operation cost when compared to the cost obtained via historic series.

Reinaldo Castro Souza; Andr Lu?s Marques Marcato; Bruno Henriques Dias; Fernando Luiz Cyrino Oliveira

2012-01-01T23:59:59.000Z

314

Laboratory and field studies related to the Hydrology/Radionuclide Migration Project  

SciTech Connect (OSTI)

This annual report describes research conducted in FY 1990 by Los Alamos National Laboratory for the Hydrology/Radionuclide Migration Project. This multi-agency project measures the underground movement of radionuclides related to nuclear testing at the Nevada Test Site. This project continues the long-term experiment at the site of the Cambric nuclear test. Water pumped from a well adjacent to the explosion cavity continues to show decreasing amounts of tritium and Krypton 85 but no Cesium 139. Analyses of drillback debris shows a distinction between refractory and volatile materials in respect to both their location in the test cavity and their leachability with groundwater. We surveyed materials used during nuclear testing to evaluate any post-test hazard; we concluded that most such materials pose a minimal hazard. The Los Alamos drilling program provided an opportunity for us to sample a collapsed zone above the cavity of a test, which was fired 2 years ago. We continue our research in colloid characterization and in detection of low levels of Technetium 99 in Nevada Test Site water. During FY 1990, we drilled a new hole in the Yucca Flat area to study radionuclide migration. This report also describes Los Alamos management and planning activities in support of this project. 20 refs., 2 figs., 14 tabs.

Thompson, J.L. (comp.)

1991-05-01T23:59:59.000Z

315

Simulated climatology of a general circulation model with a hydrological cycle  

E-Print Network [OSTI]

The thermal and dynamical structure of the tropical atmosphere which emerged from the numerical integration of our general circulation model with a simple hydrologic cycle is analyzed in detail. According to the results of our analysis, the lapse rate of zonal mean temperature in the model Tropics is supermoist-adiabatic in the lower troposphere, and is sub-moist-adiabatic above the 400-mb. level in qualitative agreement with thc observed features in the actual Tropics. The flow field in the model Tropics also displays interesting features. For example, a zone of strong convergence and a belt of heavy rain develops around the equator. Synoptic-scale disturbances such as weak tropical cyclones and shear lines with strong convergence develop and are reminiscent of disturbances in the actual tropical atmosphere. The humid towers, which result from moist convective adjustment and condensation, develop in the central core of the regions of strong upward motion, sometimes reaching the level of the tropical tropopause and thus heating the upper tropical troposphere. This heating compensates for thc cooling due to radiation and the meridional circulation. According to the analysis of the energy budget of the model Tropics, the release of eddy available potential energy, which is mainly generated by the heat of condensation, constitutes the major source of eddy kinetic energy of disturbances prevailing in the model Tropics.

Syukuro Manabe; Joseph Smagorinsky

1965-01-01T23:59:59.000Z

316

Penetrometer resistance, root penetration resistance and root elongation rate in two sandy loam soils  

Science Journals Connector (OSTI)

Root penetration resistance and elongation of maize seedling roots ... of two sandy loam soils. Root elongation rate was negatively correlated with root penetration resistance, and was reduced to about 50 ... 7.5...

A. G. Bengough; C. E. Mullins

1991-02-01T23:59:59.000Z

317

INSECTICIDE RESISTANCE AND RESISTANCE MANAGEMENT Evaluating Western Corn Rootworm (Coleoptera: Chrysomelidae)  

E-Print Network [OSTI]

. 103(1): 147Ð157 (2010); DOI: 10.1603/EC09156 ABSTRACT Resistance management is essential susceptible (refuge) plants in either a separate section of the ?eld adjacent to resistant (transgenic) plants

Ginzel, Matthew

318

Enhanced Resistance to Control Potato Tuberworm by Combining Engineered Resistance, Avidin, and Natural  

E-Print Network [OSTI]

Enhanced Resistance to Control Potato Tuberworm by Combining Engineered Resistance, Avidin & Edward J. Grafius Published online: 15 November 2008 # Potato Association of America 2008 Abstract Potato tuberworm, Phthorimaea operculella (Zeller), is a destructive insect pest of potato, Solanum tuberosum (L

Douches, David S.

319

A study of contact resistance as applied to resistance commutation of D.C. dynamos  

E-Print Network [OSTI]

of the requirnente for the degree cf RASTER OF SCIENCE Nay 1959 Na jar SubIectt Electrical Rngineering A STUDY Ot CONTACT RRSISTANCB AS APPLIED TO RESISTANCE CORNUTATION Oy D AC. DYNANOS A Thesis LEROY EUOBNB LITTI E Approved as to style and content by... investigators have attenpted to prove that the stationary contact theory also applies to sliding contacts. 3 The electrical resistance of a stationary contact I ~ explained by a constriction resistance. The constriction resistance is caused by aicroscopic...

Little, Leroy Eugene

2012-06-07T23:59:59.000Z

320

Feedback control of resistive instabilities  

SciTech Connect (OSTI)

Resistive instabilities are responsible for much of the global behavior and the determination of the possible domains of operation of tokamaks. Their successful control could have definite advantages, even making available new regimes of operation. Elimination of sawtoothing might allow operation with higher currents and more peaked current profiles, with q on axis well below unity. In this work different feedback schemes are explored. Simple analytical derivations of the effects of local heating and current drive feedback are presented. Although control of modes with m greater than or equal to 2 is fairly straightforward, the control of the m = 1 mode is more difficult because of its proximity to ideal instability. The most promising scheme utilizes high energy trapped particles. 20 refs., 3 figs.

White, R.B.; Rutherford, P.H.; Furth, H.P.; Park, W.; Chen, L.

1985-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydrological resistivity influenced" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

A survey of anthracnose resistant sorghum germplasm lines to identify additional resistance genes  

E-Print Network [OSTI]

and their inheritance characterized. The objectives of this study were (1) to determine if different sources of genetic resistance exist among a selected set of 13 resistant sorghum germplasm lines, and (2) to determine the inheritance of the different resistance genes...

Wiltse, Curtis Craig

2012-06-07T23:59:59.000Z

322

Factors influencing macrophyte growth and recovery following shoreline restoration activity  

Science Journals Connector (OSTI)

Abstract Macrophytes are increasingly being used worldwide for assessing aquatic ecological condition. Because their growth is influenced by physical habitat conditions, such as sediment quality and near-shore gradient, macrophytes may also be valuable indicators of shoreline restoration efforts. An extensive shoreline restoration project in a lake with a history of industrial activity provided the opportunity to examine macrophyte and sediment status as metrics of aquatic ecosystem health and response. We surveyed macrophyte beds in Muskegon Lake, Michigan over a 4-year period to assess the ecological benefits of the restoration project. Macrophyte biomass was affected strongly by the physical features of the individual sites, including hydrologic exposure (i.e., wind and wave action) and sediment organic matter, which contributed to a large degree of variability among the sites. Declines in macrophyte biomass the year following restoration suggested a short-term negative impact on macrophyte communities. Recovery to at least pre-restoration biomass was evident two years following restoration. However, concurrent changes at the reference sites, though to a lesser degree, also suggested a possible overriding environmental cause (i.e., water level, air temperature, precipitation) for the observed changes in macrophyte growth. Lake restoration projects are usually designed to improve water quality and enhance the fishery. Although both goals are influenced by macrophytes, the plants themselves are rarely a focal point of restoration. Our study allowed us to address this information gap; even after 4 years of sampling, it appears the timeline is too short to detect a definitive response to restoration, but our results provide important baseline information and lessons learned for future studies.

Mary E. Ogdahl; Alan D. Steinman

2015-01-01T23:59:59.000Z

323

THE ELECTRICAL RESISTIVITY METER IN FISHERY INVESTIGATIONS  

E-Print Network [OSTI]

THE ELECTRICAL RESISTIVITY METER IN FISHERY INVESTIGATIONS I Marine Biological Laboratory! WOODS RESISTIVITY METER IN FISHERY INVESTIGATIONS By Robert E. Lennon Fishery Research Biologist Appalachian Sport) BiblioKiMpliy : p. ]!. 1. Electric meters. 2. Water--Analysis. 3. Electric fishing. I. Title. ( Series

324

Radiation-Resistant Reconnaissance Robot Introduction Design  

E-Print Network [OSTI]

are water-moderated. This type of reactor consists of a deep pool filled with water, uranium fuel rods. Radiation Resistance Control/Communication The objective of this project is to develop a submersible radiation- resistant, tether-operated robot for use in a water-moderated reactor pool. 1. Radiation

Provancher, William

325

Improving Electrical Resistivity Tomography for Characterization of  

E-Print Network [OSTI]

Improving Electrical Resistivity Tomography for Characterization of Non-point Source Contaminants runoff on Arizona's potable water. Electrical resistivity tomography (ERT) shows promise as a noninvasive on the environment. Urban and agricultural runoff are often associated with an increase in water electrical

Fay, Noah

326

CFE resistivity studies at Cerro Prieto  

SciTech Connect (OSTI)

The electrical study and its correlation with data collected using other geophysical methods and from several deep wells show that regional anomalies of high and low resistivity are associated with horst, graben and en echelon faults. It should be noted, however, that the boundaries of the area which could potentially be developed cannot be defined, since no sharp resistivity contrasts were interpreted. 3 refs.

Razo, A.M.; Arellano, F.G.; Fonseca, H.L.

1980-01-01T23:59:59.000Z

327

LBL resistivity studies at Cerro Prieto  

SciTech Connect (OSTI)

A series of dc resistivity studies were performed at the Cerro Prieto geothermal field. In the present study dipole-dipole resistivity data have been collected and two-dimensional modeling studies have been performed using these and existing Schlumberger data taken by the CFE. 10 refs.

Wilt, M.J.; Goldstein, N.E.; Razo, A.M.

1980-01-01T23:59:59.000Z

328

Several test results on earthing-resistance-estimation instrument  

Science Journals Connector (OSTI)

Whenever earth construction work is done, the implanted number and depth of electrodes have to be estimated in order to obtain the required resistance value. We call this earth resistance estimation. Under conventional method of earth resistance estimation, ... Keywords: earthing-resistance estimation, resistivity sounding, soil layer

Hitoshi Kijima

2008-02-01T23:59:59.000Z

329

Characterization of leaf resistance to water loss in two clones of eastern cottonwood (Populus deltoides Bartr.) with respect to light intensity, leaf water potential, and drought  

E-Print Network [OSTI]

occurred. The magnitude of resistance in the critical range increased as soil water supply decreased below 20X by volume. Soil water supply conditioned the influence of the measured atmospheric variables. At high soil water supplies (&20X by volume... Atmospheric Evaporative Demand Total Radiation Total Leaf Area 23 24 24 Analysis 24 IV RESULTS 26 Environmental Conditions and Growth Environmental Conditions Growth Trends of Leaf Resistance to Water Loss 26 26 31 Average Trends of Leaf...

Dougherty, Phillip Merle

2012-06-07T23:59:59.000Z

330

Hydrogen Crack Growth Resistance of Thermal Power Plant Material Collector  

Science Journals Connector (OSTI)

Abstract The influence of electrolytical hydrogenation on fracture toughness, corrosion crack-growth resistance and fracture micromechanisms of operated 12Cr1MoV steel of thermal power plant superheater collector has been studied. Compact tension specimens were cut from perforated surface of thermal power plant superheater collector dismounted after 178,500hours of operation. Corrosion crack-growth resistance under tension of previously hydrogenated compact specimens with fatigue cracks was studied. Due to the increased concentration of hydrogen in solution an additional buffer was being created that prevents hydrogen leakage from the specimen through the fracture surface during the experiment. The hydrogenation causes the significant decrease of critical stress intensity factor Kc, during the experiment in 0.1N NaOH solution as compared with critical stress intensity factor K of non-hydrogenation 12Cr1MoV steel obtained by the 5% secant line method and in comparison with critical stress intensity factor Kc, determined through the J-integral. The areas of ductile crack growth in hydrogenated and non-hydrogenated specimens were found to have similar material fracture micromechanisms with dimples creation of different shape and size. But on the ductile crack growth area in hydrogenated specimens material intergranular fracture mechanisms were found caused by the hydrogen embrittlement which are similar to areas without ridges with the products corrosion traces.

V. Iasnii; P. Maruschak; O. Yasniy; Y. Lapusta

2014-01-01T23:59:59.000Z

331

A history of resistance to privatization in Russia  

Science Journals Connector (OSTI)

Abstract We investigate the connection between privatization in post-communist Russia and a mass privatization reform in Imperial Russia, the 1906 Stolypin land reform. Specifically, we relate historical measures of conflicts associated with the Stolypin reform to contemporary views on whether the privatization of the 1990s should be revised. These historical measures could influence contemporary views in two ways: first, differences in privatization-related conflicts in the past could have directly altered attitudes towards privatization in the 1990s and, second, these differences could merely reflect pre-determined dissimilarities in preferences. We first show that historical measures of resistance to privatization are associated with views that favor state ownership. One standard deviation increase in the historical resistance to privatization explains a quarter of the negative sentiment toward private property today. We also find that negative experiences with the Stolypin reform are associated with views on the procedural unfairness of modern privatization reforms, suggesting that pre-determined preferences cannot fully explain the weight of history.

Paul Castaeda Dower; Andrei Markevich

2014-01-01T23:59:59.000Z

332

Quasi-three dimensional ground-water modeling of the hydrologic influence of paleozoic rocks on the ground-water table at Yucca Mountain, Nevada.  

E-Print Network [OSTI]

??The proposed high-level radioactive waste repository site at Yucca Mountain, Nevada, has created a need to understand the, ground-water system at the site. One of (more)

Lee, Si-Yong

2012-01-01T23:59:59.000Z

333

Hydrologic Tracer Studies Conducted August 20 - 25, 1962 Near Cape Thompson, Alaska  

Office of Legacy Management (LM)

S S T A T E DIEPAR- O F THE IlVTERIGR GEOLOGICAL SURVEX Federal Cenzer, Denver 2 5 , C a l o r a a o DATA RELEASE - Sept. 1 0 , 1963 HYDROLOGIC TRACEEI STUDIES CONDUCTED A U G ~ T 20-25, 1962 NEAR CAPE THOMPSON, ALASKA V. J. Janzer and W. A. Beetem . . . . . . . . . . . . . . . . . . . . . . I n t r o d u c t i o n . . . . . . . . . . . . . . . . . . . . P l o t ? r e p a r a t i o n . . . . . . . . . . . . D i s t r i b u t i o n c o e f f i c i e n t s , f i e l d . . . . . . . . . D i s t r i b u t i o n c o e f f i c i e n t s , l a b o r a t o r y , . . . . . . . . . . . . . . . . L n f i l t r a t i c n e q e r i m e n t . - . . . . . . . . . . . . . . . . Stream d i s p e r s i o n s t u d y . . . . . . . . . . . . . . . . Sedan event f z l l o u t p l o t s . . . . . . . . . . . . . . . . . . . . . References c i t e d ILLUSTRATIONS Figure I . Summed c o u n t s removed from cesium s o i l by s u c c e s s i v e e q u i l i b r a t i o n s , . . . . . . . . 2. S m e d c o u n t s removed from s t r o n t i u m s o i l by s u c c e s s i v e e a - u i l i b r a t i o n s . . . . . . . . . 3. P l

334

Assessment of hydrologic transport of radionuclides from the Gnome underground nuclear test site, New Mexico  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) is operating an environmental restoration program to characterize, remediate, and close non-Nevada Test Site locations that were used for nuclear testing. Evaluation of radionuclide transport by groundwater from these sites is an important part of the preliminary site risk analysis. These evaluations are undertaken to allow prioritization of the test areas in terms of risk, provide a quantitative basis for discussions with regulators and the public about future work at the sites, and provide a framework for assessing data needs to be filled by site characterization. The Gnome site in southeastern New Mexico was the location of an underground detonation of a 3.5-kiloton nuclear device in 1961, and a hydrologic tracer test using radionuclides in 1963. The tracer test involved the injection of tritium, {sup 90}Sr, and {sup 137}Cs directly into the Culebra Dolomite, a nine to ten-meter-thick aquifer located approximately 150 in below land surface. The Gnome nuclear test was carried out in the Salado Formation, a thick salt deposit located 200 in below the Culebra. Because salt behaves plastically, the cavity created by the explosion is expected to close, and although there is no evidence that migration has actually occurred, it is assumed that radionuclides from the cavity are released into the overlying Culebra Dolomite during this closure process. Transport calculations were performed using the solute flux method, with input based on the limited data available for the site. Model results suggest that radionuclides may be present in concentrations exceeding drinking water regulations outside the drilling exclusion boundary established by DOE. Calculated mean tritium concentrations peak at values exceeding the U.S. Environmental Protection Agency drinking water standard of 20,000 pCi/L at distances of up to almost eight kilometers west of the nuclear test.

Earman, S.; Chapman, J.; Pohlmann, K.; Andricevic, R.

1996-09-01T23:59:59.000Z

335

Scratch resistance of different silica filled resins for obturation materials  

E-Print Network [OSTI]

Scratch resistance of different silica filled resins for obturation materials B. Bilyeu1,2 , W have scratch resistance values in the range appropriate for applications as obturation materials. Keywords: Obturation materials, Polymerzsilica, Hybrids, Polymer tribology, Scratch resistance Introduction

North Texas, University of

336

Effective conductivity of periodic arrays of spheres with interfacial resistance  

Science Journals Connector (OSTI)

...Lond. A (1997) Materials with interfacial resistance 147 (x) = 2 if...Lond. A (1997) Materials with interfacial resistance 149 infinite linear...Lond. A (1997) Materials with interfacial resistance 151 (d ) Choice...

1997-01-01T23:59:59.000Z

337

PHYSIOLOGICALANDCHEMICALECOLOGY Behavioral Resistance of Field-Collected German Cockroaches  

E-Print Network [OSTI]

for the develop- ment of behavioral resistance through selection experiments. Materials and Methods MaterialsPHYSIOLOGICALANDCHEMICALECOLOGY Behavioral Resistance of Field-Collected German Cockroaches to the toxic bait. Thus, behavioral resistance had evolved in these insects. Selection experiments showed

Buckel, Jeffrey A.

338

Resistance to insecticides in Heliothine Lepidoptera: a global view  

Science Journals Connector (OSTI)

...selection on existing resistance mechanisms. Nevertheless, incipient resistance to some of these materials in a number of arti...ective use of new materials and an ever-watchful...nature of possible resistances to them. In conclusion...

1998-01-01T23:59:59.000Z

339

Resistance Transfer Factors in sensitive strains ofS. panama  

Science Journals Connector (OSTI)

Two natural strains ofS.panama with an incomplete Resistance Factor (R factor) are described:S.panama I carries a Resistance Transfer Factor (RTF) exerting restriction on phageS.panama 47, but no resistance deter...

P. A. M. Guine; H. M. C. C. Willems

1967-01-01T23:59:59.000Z

340

Computer correction of resistance errors in polarization data. Technical report  

SciTech Connect (OSTI)

RESIST is a short microcomputer program that detects and corrects resistance (IR) errors in cathodic polarization data. It requires a minute or less to calculate the corrosion rate, the cathodic Tafel constant, and the resistance.

Gandhi, R.H.; Greene, N.D.

1983-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydrological resistivity influenced" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Resistance to Chemotherapy: Patient Variability and Cellular Heterogeneity  

Science Journals Connector (OSTI)

...Stochastic modeling of drug resistance in cancer.J Theor Biol...Michor F.Evolution of Resistance During Clonal Expansion...Tomasetti C Levy D.An elementary approach to modeling drug resistance in cancer.Math Biosci...

David A. Kessler; Robert H. Austin; and Herbert Levine

2014-09-01T23:59:59.000Z

342

P-Glycoprotein Structure and Chemotherapy Resistance  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

P-Glycoprotein Structure and Chemotherapy Resistance Print P-Glycoprotein Structure and Chemotherapy Resistance Print A research team from the Scripps Research Institute and the Texas Tech University Health Sciences Center has obtained the first glimpse of a protein that keeps certain substances, including many drugs, out of cells. The protein, called P-glycoprotein, or P-gp for short, is one of the main reasons cancer cells are resistant to chemotherapy drugs. Understanding its structure may help scientists design more effective drugs. The structure is a nice tool for understanding how drugs are transported out of cells by P-gp and for designing drugs to evade P-gp, preventing drug resistance. The Toll of Multidrug Resistance The American Cancer Society reported over 12 million new cancer cases and 7.6 million cancer deaths worldwide in 2007. Many cancers fail to respond to chemotherapy by acquiring multidrug resistance (MDR), to which has been attributed the failure of treatment in over 90% of patients with metastatic cancer. Although MDR can have several causes, one major form of chemotherapy resistance has been correlated with the presence of molecular "pumps" that transport drugs out of the cell.

343

P-Glycoprotein Structure and Chemotherapy Resistance  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

P-Glycoprotein Structure and Chemotherapy Resistance Print P-Glycoprotein Structure and Chemotherapy Resistance Print A research team from the Scripps Research Institute and the Texas Tech University Health Sciences Center has obtained the first glimpse of a protein that keeps certain substances, including many drugs, out of cells. The protein, called P-glycoprotein, or P-gp for short, is one of the main reasons cancer cells are resistant to chemotherapy drugs. Understanding its structure may help scientists design more effective drugs. The structure is a nice tool for understanding how drugs are transported out of cells by P-gp and for designing drugs to evade P-gp, preventing drug resistance. The Toll of Multidrug Resistance The American Cancer Society reported over 12 million new cancer cases and 7.6 million cancer deaths worldwide in 2007. Many cancers fail to respond to chemotherapy by acquiring multidrug resistance (MDR), to which has been attributed the failure of treatment in over 90% of patients with metastatic cancer. Although MDR can have several causes, one major form of chemotherapy resistance has been correlated with the presence of molecular "pumps" that transport drugs out of the cell.

344

Earth resistivity measurement near substation ground grids  

SciTech Connect (OSTI)

Proper substation grounding grid design requires good, accurate soil resistivity measurements. This data is essential to model the substation ground grid to design a safe ground grid with a satisfactory ground grid resistance at minimum cost. For substations with several decades of service, there is some concern that a grid may have deteriorated, been damaged during equipment installation or excavation, or that initial soil resistivity measurements were lost or may not have been correctly performed. Ground grid conductors change the substation surface voltage distribution. Any voltage measurements taken at the complete substation will also vary from the tests made without conductors present. During testing, current was injected in the soil by probes placed near the ground grid. The current tends to follow the ground grid conductors since copper is a far better conductor than the soil it is placed in. Resistance readings near grids will be lower than readings in undisturbed soil. Since computer models were unavailable for many years, analyzing the effect of the grid conductors on soil resistivity measurements was very difficult. As a result, soil resistivity measurements made close to substations were of little use to the engineer unless some means of correcting the measured values could be developed. This paper will present results of soil resistivity measurements near a substation ground grid before and after a ground grid has been installed and describes a means of calculating the undisturbed soil model.

Lodwig, S.G.; Mateja, S.A. [ComEd, Chicago, IL (United States)

1996-11-01T23:59:59.000Z

345

Electrical resistance of metallized via?holes  

Science Journals Connector (OSTI)

The resistance of a via?hole laser?drilled through an alumina substrate depends on the hole geometry the type of probe the deposition technique and the properties of the film. If the walls of the hole constitute a truncated cone the resistance is R s/?[ln(d 2/d 1)]{1/4 + [h/(d 2 ? d 1)]2}1/2 where R s is the sheet resistance h is the substrate thickness and d 1 and d 2 are the diameters. Increasing the larger diameter helps by (a) reducing the rim?to?rim resistance (b) reducing the spreading resistance and (c) making the walls more accessible for metallization. A four?point probe on the other hand measures the rim?to?rim resistance as approximately (R s/?) ln cosh (h/d) where d is an average diameter. If the hole is partially bare the four?point reading will depend on probe orientation. A comparison of calculation and measurement indicates R s in the hole to be between two and forty times R s outside depending on the thickness. Electrical probing of broken?open holes showed this to be due to thickness differences not roughness or ledge resistance.

Peter M. Hall

1975-01-01T23:59:59.000Z

346

Influence of resistive load on power output and fatigue during intermittent sprint cycling exercise in children  

Science Journals Connector (OSTI)

A modified friction-loaded cycle ergometer (Monark, model 864, Monark ... stored on a computer. Instantaneous flywheel velocity data were low-pass filtered (4th order Reverse ... inertia was calculated from decel...

Gregory C. Bogdanis; Aggeliki Papaspyrou

2007-10-01T23:59:59.000Z

347

Orientation dependence of fracture toughness and fatigue crack growth resistance for in-situ A12O3/YAG eutectic composites  

Science Journals Connector (OSTI)

MGC materials, which are in-situ single crystal oxide ceramics eutectic composites have many potentialities, such as high-strength, high creep resistance, and high oxidation resistance at ultrahigh temperature. In the New Sunshine Program of Agency of Industrial Science and Technology, a leading research and development has started since FY1998 for three years to apply MGC materials on ultrahigh temperature structural materials for gas turbine system. In this paper, the current activities of the Mechanical Engineering Laboratory in the leading research and development is shown. The influences of solidification direction on fracture toughness and fatigue crack growth resistance for A12O3/YAG eutectic composites are discussed.

K. Hirano; T. Suzuki; A. Kamei; F. Tamai

2001-01-01T23:59:59.000Z

348

Corrosion resistant storage container for radioactive material  

DOE Patents [OSTI]

A corrosion resistant long-term storage container for isolating high-level radioactive waste material in a repository is claimed. The container is formed of a plurality of sealed corrosion resistant canisters of different relative sizes, with the smaller canisters housed within the larger canisters, and with spacer means disposed between juxtaposed pairs of canisters to maintain a predetermined spacing between each of the canisters. The combination of the plural surfaces of the canisters and the associated spacer means is effective to make the container capable of resisting corrosion, and thereby of preventing waste material from leaking from the innermost canister into the ambient atmosphere.

Schweitzer, D.G.; Davis, M.S.

1984-08-30T23:59:59.000Z

349

Corrosion resistant storage container for radioactive material  

DOE Patents [OSTI]

A corrosion resistant long-term storage container for isolating radioactive waste material in a repository. The container is formed of a plurality of sealed corrosion resistant canisters of different relative sizes, with the smaller canisters housed within the larger canisters, and with spacer means disposed between judxtaposed pairs of canisters to maintain a predetermined spacing between each of the canisters. The combination of the plural surfaces of the canisters and the associated spacer means is effective to make the container capable of resisting corrosion, and thereby of preventing waste material from leaking from the innermost canister into the ambient atmosphere.

Schweitzer, Donald G. (Bayport, NY); Davis, Mary S. (Wading River, NY)

1990-01-01T23:59:59.000Z

350

Anisotropic electric surface resistance of Cu(110)  

Science Journals Connector (OSTI)

The electric surface resistance is measured without contacts by grazing incidence of p-polarized infrared (IR) radiation for the adsorbates CO and C2H4, which settle on top of the close packed atomic ridges of Cu(110) in the 1, -1, 0 direction. Surface resistance has only been observed for the IR electric currents in this direction. This can be explained by the assumption that IR induced currents in the 001 direction can only flow in the second and deeper layers of Cu(110). Therefore, in this direction, there is no friction with the adsorbates and hence no surface resistance.

A Otto; P Lilie; P Dumas; C Hirschmugl; M Pilling; G P Williams

2007-01-01T23:59:59.000Z

351

Sensitivity of Surface Flux Simulations to Hydrologic Parameters Based on an Uncertainty Quantification Framework Applied to the Community Land Model  

SciTech Connect (OSTI)

Uncertainties in hydrologic parameters could have significant impacts on the simulated water and energy fluxes and land surface states, which will in turn affect atmospheric processes and the carbon cycle. Quantifying such uncertainties is an important step toward better understanding and quantification of uncertainty of integrated earth system models. In this paper, we introduce an uncertainty quantification (UQ) framework to analyze sensitivity of simulated surface fluxes to selected hydrologic parameters in the Community Land Model (CLM4) through forward modeling. Thirteen flux tower footprints spanning a wide range of climate and site conditions were selected to perform sensitivity analyses by perturbing the parameters identified. In the UQ framework, prior information about the parameters was used to quantify the input uncertainty using the Minimum-Relative-Entropy approach. The quasi-Monte Carlo approach was applied to generate samples of parameters on the basis of the prior pdfs. Simulations corresponding to sampled parameter sets were used to generate response curves and response surfaces and statistical tests were used to rank the significance of the parameters for output responses including latent (LH) and sensible heat (SH) fluxes. Overall, the CLM4 simulated LH and SH show the largest sensitivity to subsurface runoff generation parameters. However, study sites with deep root vegetation are also affected by surface runoff parameters, while sites with shallow root zones are also sensitive to the vadose zone soil water parameters. Generally, sites with finer soil texture and shallower rooting systems tend to have larger sensitivity of outputs to the parameters. Our results suggest the necessity of and possible ways for parameter inversion/calibration using available measurements of latent/sensible heat fluxes to obtain the optimal parameter set for CLM4. This study also provided guidance on reduction of parameter set dimensionality and parameter calibration framework design for CLM4 and other land surface models under different hydrologic and climatic regimes.

Hou, Zhangshuan; Huang, Maoyi; Leung, Lai-Yung R.; Lin, Guang; Ricciuto, Daniel M.

2012-08-10T23:59:59.000Z

352

Characterization of Triclosan-Resistant Mutants Reveals Multiple Antimicrobial Resistance Mechanisms in Rhodospirillum rubrum S1H  

Science Journals Connector (OSTI)

...MOLECULAR BIOLOGY Characterization of Triclosan-Resistant Mutants Reveals Multiple...11 spontaneous high- and low-level triclosan resistance (Tcsr) mutants of Rhodospirillum...and tetracycline, while in others, a triclosan-induced antibiotic cross-resistance...

Benny F. G. Pycke; Aurlie Crabb; Willy Verstraete; Natalie Leys

2010-03-19T23:59:59.000Z

353

Screening and isolation of antibiotic resistance inhibitors from herb materials-resistance inhibition of volatile components of korean aromatic herbs  

Science Journals Connector (OSTI)

The resistance inhibitory activities of 54 odorant mixtures(essential oil) from 41 Korean aromatic herbs were tested against multi-drug resistantStaphylococcus aureus SA2, which has resistances to 10 usual antibi...

Chung Kyu Lee; Hyekyung Kim; Kyung Ho Moon; Kuk Hyun Shin

1998-02-01T23:59:59.000Z

354

New lithium-based ionic liquid electrolytes that resist salt...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

New lithium-based ionic liquid electrolytes that resist salt concentration polarization New lithium-based ionic liquid electrolytes that resist salt concentration polarization...

355

Using CrAIN Multilayer Coatings to Improve Oxidation Resistance...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Coatings to Improve Oxidation Resistance of Steel Interconnects for Solid Oxide Fuel Cell Stacks. Using CrAIN Multilayer Coatings to Improve Oxidation Resistance of Steel...

356

Erosion-Resistant Nanocoatings for Improved Energy Efficiency...  

Broader source: Energy.gov (indexed) [DOE]

Erosion-Resistant Nanocoatings for Improved Energy Efficiency in Gas Turbine Engines Erosion-Resistant Nanocoatings for Improved Energy Efficiency in Gas Turbine Engines...

357

Selection of a Wear-Resistant Tractor Drivetrain Material: Success...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Selection of a Wear-Resistant Tractor Drivetrain Material: Success stories at the High Temperature Materials Laboratory (HTML) User Program Selection of a Wear-Resistant Tractor...

358

DC Resistivity Survey (Wenner Array) At Mt Princeton Hot Springs...  

Open Energy Info (EERE)

Determination of groundwater flux patterns Notes Researchers measured DC resistivity and produced 12 resistivity profiles, each approximately 1.3 km in length. Equilibrium...

359

Test Procedure for UV Weathering Resistance of Backsheet | Department...  

Broader source: Energy.gov (indexed) [DOE]

Test Procedure for UV Weathering Resistance of Backsheet Test Procedure for UV Weathering Resistance of Backsheet Presented at the PV Module Reliability Workshop, February 26 - 27...

360

Oxygen Diffusion (OD) Dramatically Improves Wear-Resistance of...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Oxygen Diffusion (OD) Dramatically Improves Wear-Resistance of Titanium Oxygen Diffusion (OD) Dramatically Improves Wear-Resistance of Titanium 2007 Diesel Engine-Efficiency &...

Note: This page contains sample records for the topic "hydrological resistivity influenced" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Data base dictionary for the Oak Ridge Reservation Hydrology and Geology Study Groundwater Data Base. Environmental Restoration Program  

SciTech Connect (OSTI)

The Oak Ridge Reservation Hydrology and Geology Study (ORRHAGS) Groundwater Data Base has been compiled to consolidate groundwater data from the three US Department of Energy facilities located on the Oak Ridge Reservation: the Oak Ridge K-25 Site, the Oak Ridge National Laboratory, and the Oak Ridge Y-12 Plant. Each of these facilities maintains its own groundwater and well construction data bases. Data were extracted from the existing data bases, converted to a consistent format, and integrated into the ORRHAGS Groundwater Data Base structures. This data base dictionary describes the data contained in the ORRHAGS Groundwater Data Base and contains information on data base structure, conventions, contents, and use.

Thompson, B.K.

1993-04-01T23:59:59.000Z

362

Resistance to Quorum-Quenching Compounds  

Science Journals Connector (OSTI)

...31 - 35). There persists in the literature the misperception that some early QS...frequently indicated in the current literature (6). One actual mechanism of QQ resistance...microbial biotechnology with an emphasis on bioenergy production (hydrogen and methane...

Rodolfo Garca-Contreras; Toshinari Maeda; Thomas K. Wood

2013-09-06T23:59:59.000Z

363

Engineered Surfaces to Resist Corrosion and Wear  

E-Print Network [OSTI]

MATS4007 Engineered Surfaces to Resist Corrosion and Wear Course Outline Session 2, 2014 School.................................................................................................4 Part III Corrosion and Control) LG07 Lecturer 28 Jul 1 Introduction to friction and wear JH Introduction to corrosion SC 4 Aug 2

New South Wales, University of

364

Resistive stability of the cylindrical spheromak  

Science Journals Connector (OSTI)

The growth rates for resistive instabilities in a straight circular cylinder with spheromak profiles are computed by using two complementary methods. The first method employs boundary layer analysis and asymptotic matching most valid for values of the magnetic Reynolds number S?105. The second method solves the full linearized resistive magnetohydrodynamic (MHD) equations as an initial value problem utilizing zone packing around the mode rational surface. Resolution requirements limit this to S?107. The results from these two methods agree to better than 1 in 103 in the overlap region 107?S?105. A scan of parameter space reveals that for parabolic q profiles the least unstable configurations have q 0 R/a?0.67. The Hall term in Ohms Law is easily incorporated into both methods. Recalculating the resistive MHD growth rates in the presence of this term shows that the resistive interchange mode is completely stabilized for a large enough value of the ion cyclotron time.

J. DeLucia; S. C. Jardin; A. H. Glasser

1984-01-01T23:59:59.000Z

365

Antiseptics and Disinfectants: Activity, Action, and Resistance  

Science Journals Connector (OSTI)

...mechanism of action and risk assessment. . Fitzgerald K. A. Davies...resistance to preservative systems . Gilbert P. Barber J. Ford...biocides. . Russell, A. D. Assessment of sporicidal activity. Int...indicators for low temperature steam and formaldehyde sterilization...

Gerald McDonnell; A. Denver Russell

1999-01-01T23:59:59.000Z

366

Infections and antibiotic resistance in nursing homes.  

Science Journals Connector (OSTI)

...Infections and antibiotic resistance in nursing homes LE Nicolle LJ Strausbaugh RA Garibaldi...Infections occur frequently in nursing home residents. The most common infections...infection. Antimicrobial agent use in nursing homes is intense and usually empiric. All of...

L E Nicolle; L J Strausbaugh; R A Garibaldi

1996-01-01T23:59:59.000Z

367

MagLab - Heat Resistance Tutorial  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Heat Resistance This is a Java tutorial, which requires that you have Java, a free software, installed on your computer. It works best if you have the latest version of Java...

368

Clinical Aspects of Resistance to Antineoplastic Agents  

Science Journals Connector (OSTI)

Were it not for the resistance of human tumors to antineoplastic agents, disseminated cancer would not be a clinical problem, and in fact surgery and radiotherapy would be pass. All too familiar to the layper...

Dr. Roland T. Skeel; Craig A. Lindquist

1977-01-01T23:59:59.000Z

369

A novel locus for soybean aphid resistance  

Science Journals Connector (OSTI)

A population of 96 F4:5...lines was used to validate the resistance loci identified in the mapping population. The validation population was developed by single seed descent from a cross between PI 567543C and Skylla

Guorong Zhang; Cuihua Gu; Dechun Wang

2010-04-01T23:59:59.000Z

370

Effect of electric shock on capillary resistance  

Science Journals Connector (OSTI)

To determine the effect of electric shock on the capillary resistance (CR) a study was made of ... a mental hospital with a total of 31 electric shocks. The measurements were taken in the...

Dr. Rauno Heikinheimo; Osmo Sallas

1957-01-01T23:59:59.000Z

371

The Resistance of the Electric Arc  

Science Journals Connector (OSTI)

... the purpose of determining theoretically the best arrangement of cells for the production of the electric light, it was necessary to know the ... light, it was necessary to know the resistance of the ...

W. E. AYRTON; JOHN PERRY

1876-10-19T23:59:59.000Z

372

Thermal Shock Resistance (TSR) and Thermal Fatigue Resistance (TFR) of Refractory Materials. Evaluation Method Based on the Dynamic Elastic Modulus  

Science Journals Connector (OSTI)

The importance of the thermal shock resistance (TSR) of refractory material is discussed. Understanding the evolution of thermal ... undergo repeated thermal cycling. The thermal fatigue resistance (TFR) behavior...

Nicols M. Rendtorff; Esteban F. Aglietti

2014-01-01T23:59:59.000Z

373

Diesel particulate filter with zoned resistive heater  

DOE Patents [OSTI]

A diesel particulate filter assembly comprises a diesel particulate filter (DPF) and a heater assembly. The DPF filters a particulate from exhaust produced by an engine. The heater assembly has a first metallic layer that is applied to the DPF, a resistive layer that is applied to the first metallic layer, and a second metallic layer that is applied to the resistive layer. The second metallic layer is etched to form a plurality of zones.

Gonze, Eugene V [Pinckney, MI

2011-03-08T23:59:59.000Z

374

Metal resistance sequences and transgenic plants  

SciTech Connect (OSTI)

The present invention provides nucleic acid sequences encoding a metal ion resistance protein, which are expressible in plant cells. The metal resistance protein provides for the enzymatic reduction of metal ions including but not limited to divalent Cu, divalent mercury, trivalent gold, divalent cadmium, lead ions and monovalent silver ions. Transgenic plants which express these coding sequences exhibit increased resistance to metal ions in the environment as compared with plants which have not been so genetically modified. Transgenic plants with improved resistance to organometals including alkylmercury compounds, among others, are provided by the further inclusion of plant-expressible organometal lyase coding sequences, as specifically exemplified by the plant-expressible merB coding sequence. Furthermore, these transgenic plants which have been genetically modified to express the metal resistance coding sequences of the present invention can participate in the bioremediation of metal contamination via the enzymatic reduction of metal ions. Transgenic plants resistant to organometals can further mediate remediation of organic metal compounds, for example, alkylmetal compounds including but not limited to methyl mercury, methyl lead compounds, methyl cadmium and methyl arsenic compounds, in the environment by causing the freeing of mercuric or other metal ions and the reduction of the ionic mercury or other metal ions to the less toxic elemental mercury or other metals.

Meagher, Richard Brian (Athens, GA); Summers, Anne O. (Athens, GA); Rugh, Clayton L. (Athens, GA)

1999-10-12T23:59:59.000Z

375

Project Profile: Forecasting and Influencing Technological Progress...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Forecasting and Influencing Technological Progress in Solar Energy Project Profile: Forecasting and Influencing Technological Progress in Solar Energy Logos of the University of...

376

Modeling of hydrologic conditions and solute movement in processed oil shale waste embankments under simulated climatic conditions  

SciTech Connect (OSTI)

The scope of this program is to study interacting hydrologic, geotechnical, and chemical factors affecting the behavior and disposal of combusted processed oil shale. The research combines bench-scale testing with large scale research sufficient to describe commercial scale embankment behavior. The large scale approach was accomplished by establishing five lysimeters, each 7.3 {times} 3.0 {times} 3.0 m deep, filled with processed oil shale that has been retorted and combusted by the Lurgi-Ruhrgas (Lurgi) process. Approximately 400 tons of Lurgi processed oil shale waste was provided by RBOSC to carry out this study. Research objectives were designed to evaluate hydrologic, geotechnical, and chemical properties and conditions which would affect the design and performance of large-scale embankments. The objectives of this research are: assess the unsaturated movement and redistribution of water and the development of potential saturated zones and drainage in disposed processed oil shale under natural and simulated climatic conditions; assess the unsaturated movement of solubles and major chemical constituents in disposed processed oil shale under natural and simulated climatic conditions; assess the physical and constitutive properties of the processed oil shale and determine potential changes in these properties caused by disposal and weathering by natural and simulated climatic conditions; assess the use of previously developed computer model(s) to describe the infiltration, unsaturated movement, redistribution, and drainage of water in disposed processed oil shale; evaluate the stability of field scale processed oil shale solid waste embankments using computer models.

Reeves, T.L.; Turner, J.P.; Hasfurther, V.R.; Skinner, Q.D.

1992-06-01T23:59:59.000Z

377

Modeling of hydrologic conditions and solute movement in processed oil shale waste embankments under simulated climatic conditions  

SciTech Connect (OSTI)

The scope of this program is to study interacting hydrologic, geotechnical, and chemical factors affecting the behavior and disposal of combusted processed oil shale. The research combines bench-scale testing with large scale research sufficient to describe commercial scale embankment behavior. The large scale approach was accomplished by establishing five lysimeters, each 7.3 [times] 3.0 [times] 3.0 m deep, filled with processed oil shale that has been retorted and combusted by the Lurgi-Ruhrgas (Lurgi) process. Approximately 400 tons of Lurgi processed oil shale waste was provided by RBOSC to carry out this study. Research objectives were designed to evaluate hydrologic, geotechnical, and chemical properties and conditions which would affect the design and performance of large-scale embankments. The objectives of this research are: assess the unsaturated movement and redistribution of water and the development of potential saturated zones and drainage in disposed processed oil shale under natural and simulated climatic conditions; assess the unsaturated movement of solubles and major chemical constituents in disposed processed oil shale under natural and simulated climatic conditions; assess the physical and constitutive properties of the processed oil shale and determine potential changes in these properties caused by disposal and weathering by natural and simulated climatic conditions; assess the use of previously developed computer model(s) to describe the infiltration, unsaturated movement, redistribution, and drainage of water in disposed processed oil shale; evaluate the stability of field scale processed oil shale solid waste embankments using computer models.

Reeves, T.L.; Turner, J.P.; Hasfurther, V.R.; Skinner, Q.D.

1992-06-01T23:59:59.000Z

378

Information on Hydrologic Conceptual Models, Parameters, Uncertainty Analysis, and Data Sources for Dose Assessments at Decommissioning Sites  

SciTech Connect (OSTI)

This report addresses issues related to the analysis of uncertainty in dose assessments conducted as part of decommissioning analyses. The analysis is limited to the hydrologic aspects of the exposure pathway involving infiltration of water at the ground surface, leaching of contaminants, and transport of contaminants through the groundwater to a point of exposure. The basic conceptual models and mathematical implementations of three dose assessment codes are outlined along with the site-specific conditions under which the codes may provide inaccurate, potentially nonconservative results. In addition, the hydrologic parameters of the codes are identified and compared. A methodology for parameter uncertainty assessment is outlined that considers the potential data limitations and modeling needs of decommissioning analyses. This methodology uses generic parameter distributions based on national or regional databases, sensitivity analysis, probabilistic modeling, and Bayesian updating to incorporate site-specific information. Data sources for best-estimate parameter values and parameter uncertainty information are also reviewed. A follow-on report will illustrate the uncertainty assessment methodology using decommissioning test cases.

Meyer, Philip D.; Gee, Glendon W.; Nicholson, Thomas J.

2000-02-28T23:59:59.000Z

379

Workshop on Hydrologic Modeling with SWAT and Groundwater Modeling with MODFLOW (26-27 December 2014) International Conference on Modeling Tools for Sustainable Water Resources Management (28-29 December 2014)  

E-Print Network [OSTI]

2014) International Conference on Modeling Tools for Sustainable Water Resources Management (28 for hydrologic data analysis, pre / post processing, and hydrologic modeling Water Resources Management Water application of SWAT model for water manage- ment Prof. Upmanu Lall Columbia University, USA Prof. A.K. Gosain

380

RisR1307(EN) Contact Resistance of Ceramic  

E-Print Network [OSTI]

Risø­R­1307(EN) Contact Resistance of Ceramic Interfaces Between Materi- als Used for Solid Oxide Contact resistance of ceramic interfaces between materials used for solid oxide fuel cell applications the constriction resistance. The contact resistance between pairs of three different materials were analysed (stron

Note: This page contains sample records for the topic "hydrological resistivity influenced" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Current and Resistance SI unit for current is ampere  

E-Print Network [OSTI]

Conversely speak of a material's conductivity, SI unit is (�m)-1 J E = 1 = #12;Resistance and Resistivity E , J , and when talk about electrical properties of materials #12;Resistivity of Materials Resistivities for some common materials (at room temperature) Metal (Copper) Semi-conductor (Silicon) (n

Bertulani, Carlos A. - Department of Physics and Astronomy, Texas A&M University

382

Artemisinin resistance modelling the potential human and economic costs  

Science Journals Connector (OSTI)

A thought-provoking analysis predicting what would happen if widespread artemisinin resistance occurs and spreads.

Yoel Lubell; Arjen Dondorp; Philippe J Gurin; Tom Drake; Sylvia Meek; Elizabeth Ashley; Nicholas PJ Day; Nicholas J White; Lisa J White

2014-11-23T23:59:59.000Z

383

Operator theory of electrical resistance networks  

E-Print Network [OSTI]

A resistance network is a weighted graph $(G,c)$ with intrinsic (resistance) metric $R$. We embed the resistance network into the Hilbert space ${\\mathcal H}_{\\mathcal E}$ of functions of finite energy. We use the resistance metric to study ${\\mathcal H}_{\\mathcal E}$, and vice versa and show that the embedded images of the vertices $\\{v_x\\}$ form a reproducing kernel for this Hilbert space. We also obtain a discrete version of the Gauss-Green formula for resistance networks and show that resistance networks which support nonconstant harmonic functions of finite energy have a certain type of \\emph{boundary}. We obtain an analytic boundary representation for the harmonic functions of finite energy in a sense analogous to the Poisson or Martin boundary representations, but with different hypotheses, and for a different class of functions. In the process, we construct a dense space of "smooth" functions of finite energy and obtain a Gel'fand triple for ${\\mathcal H}_{\\mathcal E}$. This allows us to represent the resistance network as a system of Gaussian random variables indexed by vertices. We also study the spectral representation for $\\Delta$ on ${\\mathcal H}_{\\mathcal E}$ and show how nonzero defect entails a nontrivial boundary. All of the above are are detected by the operator theory of ${\\mathcal H}_{\\mathcal E}$ but not $\\ell^2$. Our results apply to the Heisenberg model for the isotropic ferromagnet, improving earlier results of R. T. Powers on the problem of long-range order (in reference to KMS states on the $C^\\ast$-algebra of the model).

Palle E. T. Jorgensen; Erin P. J. Pearse

2008-06-23T23:59:59.000Z

384

Influence of boundary conditions and plate geometries on buckling optimization of symmetric laminate plates  

SciTech Connect (OSTI)

The buckling resistance of symmetrically laminated plates with a given material system and subjected to uniaxial compression is maximized with respect to fiber orientations by using a sequential linear programming method together with a simple move-limit strategy. Significant influence of plate thicknesses, aspect ratios, central circular cutouts and end conditions on the optimal fiber orientations and the associated optimal buckling loads of symmetrically laminated plates has been shown through this investigation.

Hu, H.T. [National Cheng Kung Univ., Tainan (Taiwan, Province of China). Dept. of Civil Engineering

1995-12-31T23:59:59.000Z

385

Analysis of measures to enhance safeguards, and proliferation resistance in thorium based fuel fabrication plants  

Science Journals Connector (OSTI)

Abstract The presence of high energy gamma rays emitted by U232, which is always associated in ppm quantities with reprocessed U233, lends robustness or physical protection to the thorium fuel cycle. India is currently setting up a thorium based fuel cycle for its Advanced Heavy Water Reactor (AHWR). Identification and deployment of suitable extrinsic measures for fuel fabrication facilities would help in strengthening overall proliferation resistance. The extrinsic measures proposed in this paper include several measures which have been identified for the first time. A quantitative assessment of the contribution of these measures to overall safeguardability of the fuel fabrication plant has been carried out. Multi Attribute Utility Analysis (MAUA) has been used to evaluate the Proliferation Resistance (PR) value for two hypothetical facilities, one employing none of these measures and the other employing some or all of these measures. The analysis is based on the expert opinion of designers, operators, quality control managers and implementers of safeguards in fuel cycle facilities. Sensitivity analysis for all the proposed measures has also been carried out to study the effect of the influence of individual measures on the overall proliferation resistance of the fuel fabrication plant. The analysis ranks various safeguards measures based on the importance factor of a measure which is defined as the ratio of overall proliferation resistance with and without the measure. Important measures identified based on ranking are near real time monitoring, automation, safeguards-by-design, dynamic nuclear material accounting, and plant imaging.

Suresh Gangotra; R.B. Grover; K.L. Ramakumar

2014-01-01T23:59:59.000Z

386

Alternative Fuels Data Center: Low Rolling Resistance Tires  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Low Rolling Resistance Low Rolling Resistance Tires to someone by E-mail Share Alternative Fuels Data Center: Low Rolling Resistance Tires on Facebook Tweet about Alternative Fuels Data Center: Low Rolling Resistance Tires on Twitter Bookmark Alternative Fuels Data Center: Low Rolling Resistance Tires on Google Bookmark Alternative Fuels Data Center: Low Rolling Resistance Tires on Delicious Rank Alternative Fuels Data Center: Low Rolling Resistance Tires on Digg Find More places to share Alternative Fuels Data Center: Low Rolling Resistance Tires on AddThis.com... More in this section... Idle Reduction Parts & Equipment Low Rolling Resistance Tires Maintenance Driving Behavior Fleet Rightsizing System Efficiency Low Rolling Resistance Tires Close-up photograph of the tires of a light-duty vehicle driving down a road.

387

Harpin induces disease resistance in Arabidopsis through the systemic acquired resistance pathway mediated by  

E-Print Network [OSTI]

-type plants, harpin elicited systemic resistance to Peronospora parasitica and Pseudomonas syringae pv. tomato. Beer* Department of Plant Pathology, Cornell University, Ithaca, NY 14853±4203, USA Summary Harpin in many plants. Harpin and known inducers of systemic acquired resistance (SAR) were tested on ®ve

Delaney, Terrence

388

PLANT RESISTANCE Field and Storage Testing Bt Potatoes for Resistance to Potato  

E-Print Network [OSTI]

PLANT RESISTANCE Field and Storage Testing Bt Potatoes for Resistance to Potato Tuberworm Lansing, MI 48824 J. Econ. Entomol. 97(4): 1425Ð1431 (2004) ABSTRACT Potato tuberworm, Phthorimaea operculella (Zeller), is the most serious insect pest of potatoes worldwide. The introduction of the Bacillus

Douches, David S.

389

PLANT RESISTANCE A Test of Taxonomic Predictivity: Resistance to the Colorado Potato  

E-Print Network [OSTI]

PLANT RESISTANCE A Test of Taxonomic Predictivity: Resistance to the Colorado Potato Beetle in Wild Relatives of Cultivated Potato S. H. JANSKY,1 R. SIMON,2 AND D. M. SPOONER3 J. Econ. Entomol. 102(1): 422Ð431 (2009) ABSTRACT Wild relatives of potato offer a tremendous germplasm resource for breeders

Spooner, David

390

PLANT RESISTANCE Evaluation of Natural and Engineered Resistance Mechanisms in Potato  

E-Print Network [OSTI]

PLANT RESISTANCE Evaluation of Natural and Engineered Resistance Mechanisms in Potato Against Colorado Potato Beetle in a No-Choice Field Study SUSANNAH G. COOPER,1 DAVID S. DOUCHES,1,2 JOSEPH J. COOMBS,1 AND EDWARD J. GRAFIUS3 J. Econ. Entomol. 100(2): 573Ð579 (2007) ABSTRACT The Colorado potato

Douches, David S.

391

Hydrologic, diel and lunar factors affecting fishes on artificial reefs off Panama City, Florida  

E-Print Network [OSTI]

temperature had the greatest influence on fish pop- ulations present on reefs offshore Panama City, Florida. Number of taxa (lnS) and individuals (lnN) of countable reef fishes and abundance of many common taxa increased with increasing temperature... models at reefs $5-88, but not at reefs g1 and $2. The Shannon-Wiener index (H"), lnS and lnN were positively corre- lated with increasing moon phase. Conversely, number of taxs. (MWS) and individuals (MWS) of fishes present in midwater censuses were...

Sanders, Richard Morgan

2012-06-07T23:59:59.000Z

392

Factors contributing to resistance of cotton to pink bollworm attack  

E-Print Network [OSTI]

cage used in the anti?biosis s t u d y . . . . . . . . . . . . . . . . 5 ? 0 Appendix II. Figure 1* Pink bollworm emergence data, College Station, Texas ,19f?6-195>8. . 1^2 FACTORS CONTRIBUTING TO RESISTANCE OF COTTON TO PINK BOLLWORM ATTACK... hybrids resulting from crosses of aphid- resistant and susceptible cantaloupes were resistant and that the F2 progeny were three-fourths resistant and one- fourth susceptible* This typical Mendellan ratio indicates that resistance was due to a single...

Williams, Robert Kenneth

2013-10-04T23:59:59.000Z

393

Hydrologic Resources Management Program and Underground Test Area Project FY 2006 Progress Report  

SciTech Connect (OSTI)

This report describes FY 2006 technical studies conducted by the Chemical Biology and Nuclear Science Division (CBND) at Lawrence Livermore National Laboratory (LLNL) in support of the Hydrologic Resources Management Program (HRMP) and the Underground Test Area Project (UGTA). These programs are administered by the U.S. Department of Energy, National Nuclear Security Administration, Nevada Site Office (NNSA/NSO) through the Defense Programs and Environmental Restoration Divisions, respectively. HRMP-sponsored work is directed toward the responsible management of the natural resources at the Nevada Test Site (NTS), enabling its continued use as a staging area for strategic operations in support of national security. UGTA-funded work emphasizes the development of an integrated set of groundwater flow and contaminant transport models to predict the extent of radionuclide migration from underground nuclear testing areas at the NTS. The report is organized on a topical basis and contains four chapters that highlight technical work products produced by CBND. However, it is important to recognize that most of this work involves collaborative partnerships with the other HRMP and UGTA contract organizations. These groups include the Energy and Environment Directorate at LLNL (LLNL-E&E), Los Alamos National Laboratory (LANL), the Desert Research Institute (DRI), the U.S. Geological Survey (USGS), Stoller-Navarro Joint Venture (SNJV), and National Security Technologies (NSTec). Chapter 1 is a summary of FY 2006 sampling efforts at near-field 'hot' wells at the NTS, and presents new chemical and isotopic data for groundwater samples from four near-field wells. These include PM-2 and U-20n PS 1DDh (CHESHIRE), UE-7ns (BOURBON), and U-19v PS No.1ds (ALMENDRO). Chapter 2 is a summary of the results of chemical and isotopic measurements of groundwater samples from three UGTA environmental monitoring wells. These wells are: ER-12-4 and U12S located in Area 12 on Rainier Mesa and USGS HGH No.2 WW2 located in Yucca Flat. In addition, three springs were sampled White Rock Spring and Captain Jack Spring in Area 12 on Rainier Mesa and Topopah Spring in Area 29. Chapter 3 is a compilation of existing noble gas data that has been reviewed and edited to remove inconsistencies in presentation of total vs. single isotope noble gas values reported in the previous HRMP and UGTA progress reports. Chapter 4 is a summary of the results of batch sorption and desorption experiments performed to determine the distribution coefficients (Kd) of Pu(IV), Np(V), U(VI), Cs and Sr to zeolitized tuff (tuff confining unit, TCU) and carbonate (lower carbonate aquifer, LCA) rocks in synthetic NTS groundwater Chapter 5 is a summary of the results of a series of flow-cell experiments performed to examine Np(V) and Pu(V) sorption to and desorption from goethite. Np and Pu desorption occur at a faster rate and to a greater extent than previously reported. In addition, oxidation changes occurred with the Pu whereby the surface-sorbed Pu(IV) was reoxidized to aqueous Pu(V) during desorption.

Culham, H W; Eaton, G F; Genetti, V; Hu, Q; Kersting, A B; Lindvall, R E; Moran, J E; Blasiyh Nuno, G A; Powell, B A; Rose, T P; Singleton, M J; Williams, R W; Zavarin, M; Zhao, P

2008-04-08T23:59:59.000Z

394

Theory of microwave-induced zero-resistance states in two-dimensional electron systems  

SciTech Connect (OSTI)

The phenomena of microwave-induced zero-resistance states (MIZRS) and microwave-induced resistance oscillations (MIRO) were discovered in ultraclean two-dimensional electron systems in 2001-2003 and have attracted great interest from researchers. In spite of numerous theoretical efforts, the true origin of these effects remains unknown so far. We show that the MIRO-ZRS phenomena are naturally explained by the influence of the ponderomotive forces which arise in the near-contact regions of two-dimensional electron gas under the action of microwaves. The proposed analytical theory is in agreement with all experimental facts accumulated so far and provides a simple and self-evident explanation of the microwave frequency, polarization, magnetic field, mobility, power, and temperature dependencies of the observed effects.

Mikhailov, S. A. [Institute of Physics, University of Augsburg, D-86135 Augsburg (Germany)

2011-04-15T23:59:59.000Z

395

Dissipative Cryogenic Filters with Zero DC Resistance  

SciTech Connect (OSTI)

The authors designed, implemented and tested cryogenic RF filters with zero DC resistance, based on wires with a superconducting core inside a resistive sheath. The superconducting core allows low frequency currents to pass with negligible dissipation. Signals above the cutoff frequency are dissipated in the resistive part due to their small skin depth. The filters consist of twisted wire pairs shielded with copper tape. Above approximately 1 GHz, the attenuation is exponential in {radical}{omega}, as typical for skin depth based RF filters. By using additional capacitors of 10 nF per line, an attenuation of at least 45 dB above 10 MHz can be obtained. Thus, one single filter stage kept at mixing chamber temperature in a dilution refrigerator is sufficient to attenuate room temperature black body radiation to levels corresponding to 10 mK above about 10 MHz.

Bluhm, Hendrik; Moler, Kathryn A.; /Stanford U., Appl. Phys. Dept

2008-04-22T23:59:59.000Z

396

Improvements of the Variable Thermal Resistance  

E-Print Network [OSTI]

A flat mounting unit with electronically variable thermal resistance [1] has been presented in the last year [2]. The design was based on a Peltier cell and the appropriate control electronics and software. The device is devoted especially to the thermal characterization of packages, e.g. in dual cold plate arrangements. Although this design meets the requirements of the static measurement we are intended to improve its parameters as the settling time and dynamic thermal impedance and the range of realized thermal resistance. The new design applies the heat flux sensor developed by our team as well [3], making easier the control of the device. This development allows even the realization of negative thermal resistances.

V. Szekely; S. Torok; E. Kollar

2008-01-07T23:59:59.000Z

397

PhD, 2000, The University of Manitoba, Winnipeg, Canada, Groundwater hydrology. M.Sc., 1996, International Institute for Hydraulic and Environmental Engineering, Delft,  

E-Print Network [OSTI]

Of Hydrological Parameters In Modeling Flow And Transport In The Unsaturated Zone Of Yucca Mountain, Hydrogeology Effect of the Yucca Mountain Fractured Unsaturated Rock on Transient Infiltration Pulses, LBNL-57539, 5:1129-1142 . · Yu-Shu Wu, S. Mukhopadhyay, K. Zhang*, and G. S. Bodvarsson, 2006, A Mountain

Ajo-Franklin, Jonathan

398

Climate change impacts on nutrient loads in theYorkshire Ouse catchment (UK) Hydrology and Earth System Sciences, 6(2), 197209 (2002) EGS  

E-Print Network [OSTI]

Climate change impacts on nutrient loads in theYorkshire Ouse catchment (UK) 197 Hydrology and Earth System Sciences, 6(2), 197­209 (2002) © EGS Climate change impacts on nutrient loads for corresponding author: faycal.bouraoui@jrc.it Abstract This study assessed the impact of potential climate change

Paris-Sud XI, Université de

399

Assessing environmental impacts on stream water quality: deforestation in mid-Wales Hydrology and Earth System Sciences, 6(3), 421431 (2002) EGS  

E-Print Network [OSTI]

the environmental sciences, there are major management issues over the impact of man on the water qualityAssessing environmental impacts on stream water quality: deforestation in mid-Wales 421 Hydrology and Earth System Sciences, 6(3), 421­431 (2002) © EGS Assessing environmental impacts on stream water

Boyer, Edmond

400

Trends in the chemistry of atmospheric deposition and surface waters in the Lake Maggiore catchment Hydrology and Earth System Sciences, 5(3), 379390 (2001) EGS  

E-Print Network [OSTI]

is the area of Italy most affected by acid deposition. Trend analysis was performed on long-term (15-30 years the 1970s. This area was included in the RECOVER:2010 project (Ferrier et al., 2001) to assess the effect 379 Hydrology and Earth System Sciences, 5(3), 379­390 (2001) © EGS Trends in the chemistry

Boyer, Edmond

Note: This page contains sample records for the topic "hydrological resistivity influenced" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Climate change as a confounding factor in reversibility of acidification: RAIN and CLIMEX projects Hydrology and Earth System Sciences, 5(3), 477486 (2001) EGS  

E-Print Network [OSTI]

Climate change as a confounding factor in reversibility of acidification: RAIN and CLIMEX projects to the roofed structure and a climate change manipulation (CLIMEX project) was superimposed on the clean rain 477 Hydrology and Earth System Sciences, 5(3), 477­486 (2001) © EGS Climate change as a confounding

Paris-Sud XI, Université de

402

Strontium isotopic record of signatures of Holocene fluvial sediments in the Loire valley, France Hydrology and Earth System Sciences, 6(5), 849858 (2002) EGS  

E-Print Network [OSTI]

Strontium isotopic record of signatures of Holocene fluvial sediments in the Loire valley, France 849 Hydrology and Earth System Sciences, 6(5), 849­858 (2002) © EGS Strontium isotopic record for corresponding author: p.negrel@brgm.fr Abstract The distribution of Sr contents and isotopes of strontium Sr

Paris-Sud XI, Université de

403

Strontium isotope geochemistry of alluvial groundwater: a tracer for groundwater resources characterisation Hydrology and Earth System Sciences, 8(5), 959972 (2004) EGU  

E-Print Network [OSTI]

Strontium isotope geochemistry of alluvial groundwater: a tracer for groundwater resources characterisation 959 Hydrology and Earth System Sciences, 8(5), 959972 (2004) © EGU Strontium isotope geochemistry for corresponding author : p.negrel@brgm.fr Abstract This study presents strontium isotope and major ion data

Paris-Sud XI, Université de

404

Simulation of flood flow in a river system using artificial neural networks Hydrology and Earth System Sciences, 9(4), 313321 (2005) EGU  

E-Print Network [OSTI]

Simulation of flood flow in a river system using artificial neural networks 313 Hydrology and Earth System Sciences, 9(4), 313321 (2005) © EGU Simulation of flood flow in a river system using artificial Artificial neural networks (ANNs) provide a quick and flexible means of developing flood flow simulation

Paris-Sud XI, Université de

405

Long-term changes in acidification and recovery at nine calibrated catchments in Norway, Sweden and Finland Hydrology and Earth System Sciences, 5(3), 339349 (2001) EGS  

E-Print Network [OSTI]

and Finland 339 Hydrology and Earth System Sciences, 5(3), 339­349 (2001) © EGS Long-term changes in acidification and recovery at nine calibrated catchments in Norway, Sweden and Finland F. Moldan1 , R.F. Wright2, Finland 5 Finnish Meteorological Institute, Box 503, FIN-00101 Helsinki, Finland Email for corresponding

Paris-Sud XI, Université de

406

Recovery from acidification of lakes in Finland, Norway and Sweden 19901999 Hydrology and Earth System Sciences, 5(3), 327337 (2001) EGS  

E-Print Network [OSTI]

Recovery from acidification of lakes in Finland, Norway and Sweden 1990­1999 327 Hydrology and Earth System Sciences, 5(3), 327­337 (2001) © EGS Recovery from acidification of lakes in Finland, FIN-00251, Helsinki, Finland 3 University of Agricultural Sciences, PB 7050, S-75007 Uppsala, Sweden

Boyer, Edmond

407

Testing the INCA model in a small agricultural catchment in southern Finland Hydrology and Earth System Sciences, 8(4), 717728 (2004) EGU  

E-Print Network [OSTI]

Testing the INCA model in a small agricultural catchment in southern Finland 717 Hydrology catchment in southern Finland K. Granlund, K. Rankinen and A. Lepistö Finnish Environment Institute, P.O. Box 140, FIN-00251 Helsinki, Finland Email for corresponding author: kirsti

Boyer, Edmond

408

Phase II Hydrologic Data for the Groundwater Flow and Contaminant Transport Model of Corrective Action Unit 98: Frenchman Flat, Nye County, Nevada, Rev. No.: 0  

SciTech Connect (OSTI)

This report documents pertinent hydrologic data and data analyses as part of the Phase II Corrective Action Investigation (CAI) for Frenchman Flat (FF) Corrective Action Unit (CAU): CAU 98. The purpose of this data compilation and related analyses is to provide the primary reference to support the development of the Phase II FF CAU groundwater flow model.

John McCord

2004-12-01T23:59:59.000Z

409

Forms of Soil Phosphorus in Selected Hydrologic Units of the Florida Everglades K. R. Reddy,* Y. Wang, W. F. DeBusk, M. M. Fisher, and S. Newman  

E-Print Network [OSTI]

among various soil P forms. Soil samples from selected hydrologic units, including the Water Conservation Areas (WCAs) and the Holey Land Wildlife Management Area (HWMA), were obtained at various depth, with about one-third of the P stored in the inorganic pool (primarily as Ca- and Mg-bound P

Florida, University of

410

Fingerprinting of bed sediment in theTay Estuary, Scotland: an environmental magnetism approach Hydrology and Earth System Sciences, 6(6), 10071016 (2002) EGS  

E-Print Network [OSTI]

Fingerprinting of bed sediment in theTay Estuary, Scotland: an environmental magnetism approach 1007 Hydrology and Earth System Sciences, 6(6), 1007­1016 (2002) © EGS Fingerprinting of bed sediment 9AL, Scotland Email of corresponding author: p.a.jenkins@dundee.ac.uk Abstract Sediment

Paris-Sud XI, Université de

411

Geologic and hydrologic controls critical to coalbed methane producibility and resource assessment: Williams Fork Formation, Piceance Basin, Northwest Colorado. Topical report, December 1, 1993-November 30, 1995  

SciTech Connect (OSTI)

The objectives of this report are: To further evaluate the interplay of geologic and hydrologic controls on coalbed methane production and resource assessment; to refine and validate our basin-scale coalbed methane producibility model; and to analyze the economics of coalbed methane exploration and development in the Piceance Basin.

Tyler, R.; Scott, A.R.; Kaiser, W.R.; Nance, H.S.; McMurry, R.G.

1996-03-01T23:59:59.000Z

412

Our second assignment will look at hydrology how can GIS be used to create a geographic database that contains maps of Illinois rivers, their watershed  

E-Print Network [OSTI]

the National Atlas website (link is on next page). #12;A GIS software package stores digital maps, in a variety. ArcGIS is a package of programs: ArcMap is a new version of ArcView, which is the GIS analyticalOur second assignment will look at hydrology ­ how can GIS be used to create a geographic database

Frank, Thomas D.

413

Coupled Thermal-Hydrological-Mechanical-Chemical Model And Experiments For Optimization Of Enhanced Geothermal System Development And Production: Evaluation of Stimulation at the Newberry Volcano EGS Demonstration Site  

Broader source: Energy.gov [DOE]

Coupled Thermal-Hydrological-Mechanical-Chemical Model And Experiments For Optimization Of Enhanced Geothermal System Development And Production: Evaluation of Stimulation at the Newberry Volcano EGS Demonstration Site through Natural Isotopic Reactive Tracers and Geochemical Investigation presentation at the April 2013 peer review meeting held in Denver, Colorado.

414

Thermal-Hydrologic-Mechanical Study of Pre-Closure Off-Normal Thermal Scenarios at the Proposed Yucca Mountain Nuclear Waste Repository  

SciTech Connect (OSTI)

The proposed nuclear waste repository at Yucca Mountain, Nevada currently includes a minimum of 50 years forced ventilation inside of emplacement drifts prior to repository closure. To regulate the heat generated from emplaced waste packages, the ventilation during the pre-closure period should be continuous. Off-normal thermal scenarios that consider temporary shutdown of the pre-closure ventilation are investigated to determine the impacts of ventilation shutdown on the thermal-hydrologic-mechanical behaviors of the emplacement drifts. In-drift heat transfer processes including radiation, convection, and conduction are studied. The analysis provides a ventilation heat removal ratio that varies on the drift location and the ventilation duration. The heat removal ratio is transferred and utilized in the NUFT thermal-hydrology software. The NUFT software is used to investigate the thermal-hydrologic impacts on the repository rock mass for the off-normal thermal scenarios with various shutdown durations at various pre-closure times. The predicted rock mass temperature evaluated from the thermal-hydrologic analysis is applied for the thermal-mechanical analysis of the off-normal thermal scenarios. The results show that degradation and rockfall of the emplacement drifts due to the off-normal thermal scenarios will be minimal, and it is concluded that the impacts of off-normal thermal scenarios on the stability of the emplacement drifts will be insignificant.

J. Leem; M. Lin; Y. Sun; D. Kicker

2005-03-09T23:59:59.000Z

415

Drug Therapy: Vancomycin-Resistant Enterococcal Infections  

Science Journals Connector (OSTI)

...; the treatment of infection when cultures are negative for a ?-lactamresistant organism; as empirical treatment of febrile patients with neutropenia, unless there is strong evidence for gram-positive organisms, such as pus at a catheter exit site; when a single blood culture is positive for coagulase... Enterococci are best known as antibiotic-resistant opportunistic pathogens that are commonly recovered from patients who have received multiple courses of antibiotics and have been hospitalized for prolonged periods.16 These organisms were well ...

Murray B.E.

2000-03-09T23:59:59.000Z

416

Antibiotic Resistance Problems, Progress, and Prospects  

Science Journals Connector (OSTI)

...-sponsored 10 million Longitude Prize to the best solution to the resistance problem. And in September, the U.S. President's Council of Advisors on Science and Technology released a report on antibiotic resistance linked to an executive order from President Barack Obama, who directed the National Security... Two major ways that modern medicine saves lives are through antibiotic treatment of severe infections and the performance of medical and surgical procedures under the protection of antibiotics. Yet we have not kept pace with the ability of many pathogens ...

2014-10-01T23:59:59.000Z

417

Fabrication and testing of corrosion resistant coatings  

SciTech Connect (OSTI)

The susceptibility of SiC and Si{sub 3}N{sub n} to sodium corrosion mandates that corrosion resistant coatings be developed to protect silicon-based turbine engine components. Materials with good corrosion resistance and thermal expansions that nearly match SiC and Si{sub 3}N{sub 4} have been identified. Corrosion testing of hot-pressed pellets of these compounds has identified the most promising materials. Development of chemical vapor deposition system to apply these materials has been initiated. 20 refs., 3 figs.

Stinton, D.P.; McLaughlin, J.C.; Riester, L.

1991-01-01T23:59:59.000Z

418

The Electrical Resistance of Binary Metallic Mixtures  

Science Journals Connector (OSTI)

The existing theories of the resistivity of mixtures assume regular arrangements of the two components rather than random mixtures. A theory for a random mixture is given based on the assumption that each crystal acts as if surrounded by a homogeneous medium whose properties are those of the mixture. Comparisons with experiment are made. The experimental data that have been examined fall roughly into two classes. One class consists of mixtures where the variation of resistivity with composition disagrees violently with this theory making it clear that the assumptions made are completely inapplicable. The remaining class consists of mixtures which generally agree well with the theory.

Rolf Landauer

1952-01-01T23:59:59.000Z

419

THE EFFECT OF SUBBANDGAP ILLUMINATION ON THE BULK RESISTIVITY OF CDZNTE  

SciTech Connect (OSTI)

The variation in bulk resistivity during infrared (IR) illumination above 950 nm of state-of-the-art CdZnTe (CZT) crystals grown using the traveling heating method or the modified Bridgman method is documented. The change in steady-state current with and without illumination is also evaluated. The influence of secondary phases (SP) on current?voltage (I?V) characteristics is discussed using IR transmission microscopy to determine the defect concentration within the crystal bulk. SP present within the CZT are connected to the existence of deep, IR-excitable traps within the bandgap.

Wright, J.; Washington, A.; Duff, M.; Burger, A.; Groza, M.; Buliga, V.

2013-08-13T23:59:59.000Z

420

Determination of electrical resistivity of dry coke beds  

SciTech Connect (OSTI)

The electrical resistivity of the coke bed is of great importance when producing FeMn, SiMn, and FeCr in a submerged arc furnace. In these processes, a coke bed is situated below and around the electrode tip and consists of metallurgical coke, slag, gas, and metal droplets. Since the basic mechanisms determining the electrical resistivity of a coke bed is not yet fully understood, this investigation is focused on the resistivity of dry coke beds consisting of different carbonaceous materials, i.e., coke beds containing no slag or metal. A method that reliably compares the electrical bulk resistivity of different metallurgical cokes at 1500{sup o} C to 1600{sup o}C is developed. The apparatus is dimensioned for industrial sized materials, and the electrical resistivity of anthracite, charcoal, petroleum coke, and metallurgical coke has been measured. The resistivity at high temperatures of the Magnitogorsk coke, which has the highest resistivity of the metallurgical cokes investigated, is twice the resistivity of the Corus coke, which has the lowest electrical resistivity. Zdzieszowice and SSAB coke sort in between with decreasing resistivities in the respective order. The electrical resistivity of anthracite, charcoal, and petroleum coke is generally higher than the resistivity of the metallurgical cokes, ranging from about two to about eight times the resistivity of the Corus coke at 1450{sup o}C. The general trend is that the bulk resistivity of carbon materials decreases with increasing temperature and increasing particle size.

Eidem, P.A.; Tangstad, M.; Bakken, J.A. [NTNU, Trondheim (Norway)

2008-02-15T23:59:59.000Z

Note: This page contains sample records for the topic "hydrological resistivity influenced" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

A Comparative Review of Hydrologic Issues Involved in Geologic Storage of CO2 and Injection Disposal of Liquid Waste  

SciTech Connect (OSTI)

The paper presents a comparison of hydrologic issues and technical approaches used in deep-well injection and disposal of liquid wastes, and those issues and approaches associated with injection and storage of CO{sub 2} in deep brine formations. These comparisons have been discussed in nine areas: (1) Injection well integrity; (2) Abandoned well problems; (3) Buoyancy effects; (4) Multiphase flow effects; (5) Heterogeneity and flow channeling; (6) Multilayer isolation effects; (7) Caprock effectiveness and hydrogeomechanics; (8) Site characterization and monitoring; and (9) Effects of CO{sub 2} storage on groundwater resources There are considerable similarities, as well as significant differences. Scientifically and technically, these two fields can learn much from each other. The discussions presented in this paper should help to focus on the key scientific issues facing deep injection of fluids. A substantial but by no means exhaustive reference list has been provided for further studies into the subject.

Tsang, C.-F.; Birkholzer, J.; Rutqvist, J.

2008-04-15T23:59:59.000Z

422

Electrical contact resistance between stainless steel bipolar plate and carbon felt in PEFC: A comprehensive study  

Science Journals Connector (OSTI)

Bipolar plate represents a key component of Proton Exchange Membrane Fuel Cell (PEFC) with several essential functions, among them the electric connection of elementary cells. Usually made of graphite, this component is studied worldwide in order to develop a commercially viable alternative: different ways have been being investigated, and to date, despite corrosion issues, stainless steel (SS) appears as a good candidate material, but its Electrical Contact Resistance (ECR) can reach unacceptable values when exposed to PEFC environment. This paper offers a comprehensive study of the parameters acting on ECR when using uncoated SS in PEFC: roughness, which influences the surface contact area with carbon baking, bulk composition of the alloy, which influences only partly the nature of passive films, and the composition and structure of passive films, strongly modified by surface treatments and ageing conditions.

Johan Andr; Laurent Antoni; Jean-Pierre Petit; Eric De Vito; Alexandre Montani

2009-01-01T23:59:59.000Z

423

Selection, mechanism, cross resistance and stability of spinosad resistance in Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae)  

Science Journals Connector (OSTI)

Abstract Spodoptera litura is one of the most destructive pests in Pakistan and in many other regions of the world. A field collected population of S.litura was selected with spinosad for eleven generations under controlled laboratory conditions to study the cross resistance, mechanism and stability of spinosad resistance in S.litura. The resistance to spinosad in S.litura increased 3921-fold (after eleven generations of selection with spinosad) as compared to a susceptible population of S.litura. No cross resistance between spinosad and emamectin benzoate, methoxyfenozide, fipronil, indoxacarb, profenofos, lufenuron or deltamethrin was found in the spinosad-selected population of S.litura. To find the possible mechanism of spinosad resistance in S.litura two synergists, Piperonyl butoxide (PBO), S, S, S-tributyl phosphorotrithioate (DEF) were tested on the susceptible and resistant strains and on the un-selected field population. The values of the synergism ratios of PBO and DEF were 2.33 and 1.06 for the spinosad-selected strain, 1.36 and 1.06 for the un-selected field population and 1.14 and 1.00 for the susceptible strain, respectively. As high PBO ratio indicates the role of microsomal O-demethylase in causing spinosad resistance in S.litura. The spinosad-resistant and field populations of S.litura were reared without any selection pressure from the 12th to the 16th generation (G12G16). The spinosad resistance decreased from 3921 to 678-fold in the spinosad-resistant population and from 31.1 to 15.1-fold in the un-selected population of S.litura as compared to the susceptible strain. Spinosad resistance in S.litura has a high reversion rate (?0.15) which indicates that spinosad resistance in S.litura is unstable and can be easily managed by switching off the selection pressure for a few generations or alternating with insecticides having different modes of action.

Adeel Rehan; Shoaib Freed

2014-01-01T23:59:59.000Z

424

Electric-field-dependent average resistance and the resistance fluctuation in one-dimensional disordered systems  

Science Journals Connector (OSTI)

Following an invariant-imbedding approach, we obtain analytical expressions for the ensemble-averaged resistance (?) and its Sinais fluctuations for a one-dimensional disordered conductor in the presence of a finite electric field F. The mean resistance shows a crossover from the exponential to the power-law length dependence with increasing field strength in agreement with known numerical results. More importantly, unlike the zero-field case the resistance distribution saturates to a Poissonian-limiting form proportional to A?F?exp(-A?F??) for large sample lengths, where A is constant.

G. V. Vijayagovindan, A. M. Jayannavar, and N. Kumar

1987-02-01T23:59:59.000Z

425

Application Of Electrical Resistivity And Gravimetry In Deep Geothermal  

Open Energy Info (EERE)

Resistivity And Gravimetry In Deep Geothermal Resistivity And Gravimetry In Deep Geothermal Exploration Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Application Of Electrical Resistivity And Gravimetry In Deep Geothermal Exploration Details Activities (0) Areas (0) Regions (0) Abstract: The electrical resistivity method has been proven applicable to geothermal exploration because of the direct relationship between fluid and rock temperatures on the one hand electrical conductivity on the other. The problem of exploitation of a surface technique, such as resistivity, to the determination of geothermal gradients or 'hot spots' is complicated by the other geological parameters which affect resistivity: porosity, fluid salinity, cementation factor and clay content. However, by rational

426

Electrical Resistivity At Coso Geothermal Area (1972) | Open Energy  

Open Energy Info (EERE)

Electrical Resistivity At Coso Geothermal Area (1972) Electrical Resistivity At Coso Geothermal Area (1972) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Electrical Resistivity At Coso Geothermal Area (1972) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Direct-Current Resistivity Survey Activity Date 1972 Usefulness useful DOE-funding Unknown Exploration Basis Identify drilling sites for exploration Notes Electrical resistivity studies outline areas of anomalously conductive ground that may be associated with geothermal activity and assist in locating drilling sites to test the geothermal potential. References Ferguson, R. B. (1 June 1973) Progress report on electrical resistivity studies, COSO Geothermal Area, Inyo County, California

427

Characterization of Grooves in Scratch Resistance Testing  

E-Print Network [OSTI]

and different properties we have determined scratch resistance and sliding wear (15 scratches along the same and outside the scratching and sliding wear grooves. Three modes of sliding wear are seen: plowing, cutting of wear as the weight of the debris formed is not usa- ble for PC; grooves are present

North Texas, University of

428

Microbiology: A triclosan-resistant bacterial enzyme  

Science Journals Connector (OSTI)

... Triclosan is an antimicrobial agent that is widely used in a variety of consumer products and ... But several key pathogenic bacteria do not possess FabI, and here we describe a unique triclosan-resistant flavoprotein, FabK, that can also catalyse this reaction in Streptococcus pneumoniae. Our ...

Richard J. Heath; Charles O. Rock

2000-07-13T23:59:59.000Z

429

Elevating crop disease resistance with cloned genes  

Science Journals Connector (OSTI)

...The latter imply CO2 emissions from diesel fuel and potential soil compaction from...agrochemicals imposes costs for chemicals, diesel fuel, machine maintenance and labour...blight-resistant Fortuna variety to market in Europe are too high to justify further...

2014-01-01T23:59:59.000Z

430

A Role for Ectophosphatase in Xenobiotic Resistance  

Science Journals Connector (OSTI)

...showed decreased resistance to cycloheximide in the presence of excess extracellular ATP ( ). No cell line was able to grow in the...ade2-101och lys2-801a pdr5::TRP1) by a polyethylene glycol-lithium acetate procedure () and selected on uracil dropout medium...

Collin Thomas; Asha Rajagopal; Brian Windsor; Robert Dudler; Alan Lloyd; Stanley J. Roux

431

Original article Mechanisms of resistance to acrolein  

E-Print Network [OSTI]

Original article Mechanisms of resistance to acrolein in Drosophila melanogaster L.M. Sierra M Oviedo, Spain (received 29 November 1988; accepted 26 May 1989) Summary - The mechanisms of acrolein of acrolein entering the flies, and the other is an increase in aldehyde dehydrogenase activity; probably

Paris-Sud XI, Université de

432

Oxidative Stress Resistance in Deinococcus radiodurans  

Science Journals Connector (OSTI)

...for Circumventing Aging and Cancer? The properties of the extreme...tightly linked with aging and cancer. Aging and cancer are associated...the radiation resistance of cancer cells may therefore result...with radionuclides such as uranium 235U, toxic organic solvents...

Dea Slade; Miroslav Radman

2011-03-01T23:59:59.000Z

433

Human Cytomegalovirus Resistance to Antiviral Drugs  

Science Journals Connector (OSTI)

American Society for Microbiology MINIREVIEW MINIREVIEW Human...Resistance to Antiviral Drugs C. Gilbert 1 G. Boivin 1 Corresponding...523-528. 20 Boivin, G., C. Gilbert, A. Gaudreau, I. Greenfield...G., N. Goyette, C. Gilbert, N. Roberts, K. Macey...

C. Gilbert; G. Boivin

2005-03-01T23:59:59.000Z

434

A mathematical model for antimalarial drug resistance  

Science Journals Connector (OSTI)

......Introduction Malaria is a public health problem for about 2.4 billion...more expensive and may have dangerous side effects and creates such...illustrated in Fig. 2. The public health implication of backward bifurcation...resistance classes. The public health implication of back- ward......

Jean M. Tchuenche; Christinah Chiyaka; David Chan; Amanda Matthews; Ghislaine Mayer

2011-12-01T23:59:59.000Z

435

Congo polio strain can resist vaccine  

Science Journals Connector (OSTI)

... The cause of an unusually severe outbreak of poliomyelitis that hit Congo in 2010 has been identified: a strain of poliovirus that sometimes resists the immune ... vaccine, which provides the strongest immunity, are protected against the strain. Its spread in Congo was stopped by orally re-vaccinating the entire population of the surrounding areas. ...

Ed Yong

2014-08-20T23:59:59.000Z

436

Resistance of Square Bars to Torsion  

Science Journals Connector (OSTI)

... Encyclopdia Britannica; Prof. Unwin's Elements of Machine Design; Prof. Alexander's Elementary Applied Mechanics; &c. It is stated that the moment of ... Applied Mechanics; &c. It is stated that the moment of resistance of a square bar to torsion appears from Saint-Venant's investigations to be - ...

T. I. DEWAR

1888-06-07T23:59:59.000Z

437

Dihydrofolate reductase and aminopterin resistance in Pneumococcus  

Science Journals Connector (OSTI)

Consistent with the maximum resistance conferred by mutations in the amiA locus, dihydrofolate (FH2) reductase in cell-free extracts (CFE) of amiA-r...strains has a two- to six-fold greater affinity for the subst...

Stephen H. Benedict; Thomas C. Gray

438

Influence of insulating coating on aluminum wire explosions  

SciTech Connect (OSTI)

Single wire explosions are widely used in understanding the early stages of z-pinch experiments. This paper presents a serial of experiments conducted on the pulse power generator with ?1?kA peak current and ?10?ns rising time in Xi'an Jiao Tong University. Polyimide coated aluminum wires and uncoated ones were tested under three different voltages to analyze the effect of insulating coating. Experimental results showed that insulating coating can increase the energy deposition 10%?30% in aluminum wires by delaying the voltage collapse and raising the maximum load resistance. The substantial energy deposition resulted in about 20% faster expansion rates for coated wires. Experimental evidence that plasma channel shunts the current from the wire core was observed by streak camera and schlieren graphs. This paper also briefly discussed the influence of nonuniform coating on the morphology of wire expansion.

Li, Yang; Wu, Jian, E-mail: jxjawj@gmail.com [State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049 (China); State Key Laboratory of Intense Pulse Radiation of Simulation and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024 (China); Sheng, Liang; Zhao, Jizhen; Zhang, Mei; Yuan, Yuan; Peng, Bodong [State Key Laboratory of Intense Pulse Radiation of Simulation and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024 (China); Li, Xingwen [State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049 (China)

2014-10-15T23:59:59.000Z

439

Transport of antibiotic-resistant bacteria and resistance-carrying plasmids through porous media  

E-Print Network [OSTI]

antibiotic resistance has emerged as not only a major medical problem but also as an environmental in animal agriculture (Mellon et al., 2001) -- is receiving increasing attention in light of the increasing

Alvarez, Pedro J.

440

Training Program EHS ~ 244: Resistance Spot Welding Safety Training  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

4: Resistance Spot Welding Safety Training 4: Resistance Spot Welding Safety Training Course Syllabus Subject Category: Resistance Spot Welding Course Prerequisite: None Course Length: 25 minutes Medical Approval: No Delivery Mode: Web-Based Course Goal: Participants will be introduced to resistance spot welding processes, hazards, and safe work practices. Course Objectives: By the end of this course, you will be able to: * Identify resistance spot welding processes * Identify hazards, safe work practices, and personal protective equipment associated with resistance spot welding * Recognize the purpose of resistance spot welding schedules * Locate resistance spot welding schedule Subject Matter Expert: Joe Dionne x 7586 Training Compliance: 29 CFR 1910 Subparts O & Z, 29 CFR 1926 Subparts J & Z

Note: This page contains sample records for the topic "hydrological resistivity influenced" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

The Resistance of Materials to Impact Erosion Damage  

Science Journals Connector (OSTI)

...research-article The Resistance of Materials to Impact Erosion Damage...constitution of the materials. It has been found...of relative erosion resistance, and for a restricted range of materials it has been related...

1966-01-01T23:59:59.000Z

442

Radiation Resistance of Spores of Some Clostridium perfringens Strains  

Science Journals Connector (OSTI)

...TABLE 2. Comparative radiation resistances of some strains...Method ofcomputing a 12D dose (Mrad) Strain Exponential...spores were obtained from dose- survival curves which...Werkowski. 1968. Estimation of radiation resistance values of...

Walter J. Clifford; Abe Anellis

1975-06-01T23:59:59.000Z

443

Segmenting bank customers by resistance to mobile banking  

Science Journals Connector (OSTI)

The objective of the study is to explore bank customers' varying reasons for resisting mobile banking services. Before being adopted, all innovations face various types of resistance that may paralyse customers' desire to adopt an innovation. ...

Tommi Laukkanen; Suvi Sinkkonen; Pekka Laukkanen; Marke Kivijarvi

2008-03-01T23:59:59.000Z

444

ELECTRICAL IMPEDANCE TOMOGRAPHY ON A RESISTIVE NETWORK WITH INTERNAL CURRENTS  

E-Print Network [OSTI]

ELECTRICAL IMPEDANCE TOMOGRAPHY ON A RESISTIVE NETWORK WITH INTERNAL CURRENTS YONG JUNG KIM AND MIN resonance image, electrical density image, electrical impedance tomog- raphy, resistive network, anisotropic from internal currents and the boundary conductivity. An electrically conducting body is discretized

Kim, Yong Jung

445

Filtration problems with a piecewise-linear resistance law  

Science Journals Connector (OSTI)

The article discusses elementary solutions of problems of nonlinear filtration with a piece-wise-linear resistance law, and analyzes their behavior with a relative increase in the resistance in the region of smal...

V. M. Entov; T. A. Malakhova

446

Development of load and resistance factor design for FRP strengthening of reinforced concrete structures  

E-Print Network [OSTI]

variation in loads and material resistances, while in factthe different resistance factors, materials, FRP degradationfactors on resistance to consider material uncertainty after

Atadero, Rebecca Anne

2006-01-01T23:59:59.000Z

447

Laboratory Evaluation of Corrosion Resistance of Steel Dowels in Concrete Pavement  

E-Print Network [OSTI]

the corrosion resistance of different materials when exposedof Polarization Resistance (Rp) Results Material Count Sumthe corrosion resistance of different materials when exposed

Mancio, Mauricio; Carlos, Cruz Jr.; Zhang, Jieying; Harvey, John T; Monteiro, Paulo J. M.; Ali, Abdikarim

2005-01-01T23:59:59.000Z

448

Hydrologic studies of multilayered landfill covers for closure of waste landfills at Los Alamos, New Mexico  

SciTech Connect (OSTI)

The Los Alamos National Laboratory examined water balance relationships for four different landfill cover designs containing engineered barriers. These field experiments were performed at Los Alamos, New Mexico, USA, in 1.0- by 10.0-m plots with downhill slopes of 5, 10, 15 and 25%. Field measurements of seepage, precipitation, interflow, runoff, and soil water content were collected in each of the 16 plots representing four slopes each with four cover designs: Conventional, EPA, Loam Capillary Barrier and Clay Loam Capillary Barrier. A seepage collection system was installed beneath each cover design to evaluate the influence of slope length on seepage using a series of four metal pans filled with medium gravel that were placed end-to-end in the bottom of each field plot. An automated waterflow datalogging system was used to collect hourly seepage, interflow and runoff data and consisted of 100 100-liter tanks, each of which was equipped with an ultrasonic liquid-level sensor and a motor-operated ball valve used to drain the tank. Soil water content was routinely monitored every six hours at each of 212 locations throughout the 16 plots with time domain reflectrometry (TDR) techniques using an automated and multiplexed measurement system.

Nyhan, J.W.; Langhorst, G.J.; Martin, C.E.; Martinez, J.L.; Schofield, T.G.

1993-06-01T23:59:59.000Z

449

Stabilization of Resistive Kink Modes in the Tokamak  

Science Journals Connector (OSTI)

Optimized current profiles are shown to be capable of providing simultaneous stability against all resistive kink modes in the tokamak.

A. H. Glasser; H. P. Furth; P. H. Rutherford

1977-01-31T23:59:59.000Z

450

Multifunctional Corrosion-resistant Foamed Well Cement Composites  

Broader source: Energy.gov [DOE]

Multifunctional Corrosion-resistant Foamed Well Cement Composites presentation at the April 2013 peer review meeting held in Denver, Colorado.

451

Assessment of 2D resistivity structures using 1D inversions  

E-Print Network [OSTI]

) E. R. Hoskins (Head of Departsnent) May 1987 ABSTRACT Assessment of 2D Resistivity Structures Using 1D Inversion. (May 1987) Les Paul Beard, B. S. , East Texas State University Chairman of Advisory Committee: Dr. Frank Dale Morgan Resistivity... sections from Schlumberger soundings over and near normal fault. 4. 11 Inverted sections from Wenner soundings over and near nornral fault 4. 12 Schlumberger apparent resistivity contour for normal fault 4. 13 Wenner apparenl resistivity contour...

Beard, Les Paul

1987-01-01T23:59:59.000Z

452

Mechanisms Controlling Theophylline Release from Ethanol-Resistant Coated Pellets  

Science Journals Connector (OSTI)

To elucidate the mass transport mechanisms controlling drug release from recently proposed, ethanol-resistant, polymeric film coatings.

Y. Rosiaux; C. Velghe; S. Muschert; R. Chokshi; B. Leclercq

2014-03-01T23:59:59.000Z

453

Rapid gain and loss of evolutionary resistance to the harmful ...  

Science Journals Connector (OSTI)

ABSTRACT: Evolutionary resistance of the copepod Acartia tonsa to the dinoflagellate Cochlodinium polykrikoides was investigated to establish whether

454

Grazing resistance allows bloom formation and may explain ...  

Science Journals Connector (OSTI)

Grazing resistance allows bloom formation and may explain invasion success of Gonyostomum semen. Karen Lebret, Mara Fernndez Fernndez, Camilla...

455

Social Influence Modeling on Smartphone Usage  

Science Journals Connector (OSTI)

This paper presents a probabilistic influence model for smartphone usage; it applies a latent group model to social influence. The probabilistic model is built on the assumption that a time series of students...

Masaji Katagiri; Minoru Etoh

2011-01-01T23:59:59.000Z

456

Factors influencing Cryptosporidium testing in Connecticut.  

Science Journals Connector (OSTI)

...influencing Cryptosporidium testing in Connecticut CL Roberts C Morin DG Addiss SP Wahlquist...Cryptosporidium oocysts in stool samples, Connecticut laboratories were surveyed. Different...influencing Cryptosporidium testing in Connecticut. | To describe patterns of testing...

C L Roberts; C Morin; D G Addiss; S P Wahlquist; P A Mshar; J L Hadler

1996-09-01T23:59:59.000Z

457

High-temperature quenching of electrical resistance in graphene interconnects  

E-Print Network [OSTI]

into the chip interconnect design the materials with low electrical resistance and high thermal con- ductivity dependence of the resistance were explained by the thermal generation of the electron-hole pairs and carrier, increased total thermal boundary resistance of the chip layers, incorporation of the alternative dielectric

458

Convexity of resistive n-ports F. Reza (*)  

E-Print Network [OSTI]

L-103 Convexity of resistive n-ports F. Reza (*) (Reçu le 25 septembre 1979, accepte le 8 janvier resistive n-ports manifest convex (downward concave) property in view of their positive definite character. Several useful theorems for resistive n-ports are proved by electrical circuit conside- rations

Paris-Sud XI, Université de

459

Notch Sensitivity of Ceramic Composites with Rising Fracture Resistance  

E-Print Network [OSTI]

of common notched test configurations with the material's fracture resistance. Analogous treatments of notch sensitivity have been used previously for other materials that exhibit rising fracture resistance, includingNotch Sensitivity of Ceramic Composites with Rising Fracture Resistance Michael A. Mattoni

Zok, Frank

460

A nonmineralized approach to abrasion-resistant biomaterials  

E-Print Network [OSTI]

of biostructural materials. In this study, the abrasion resistance of the jaws of one such animal, the bloodworm, stiffest, and most abrasion-resistant materials are found within a thin (A nonmineralized approach to abrasion- resistant biomaterials Michael G. Pontin*, Dana N. Moses , J

Zok, Frank

Note: This page contains sample records for the topic "hydrological resistivity influenced" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

TEACHER NOTES The Effect of Temperature on Electrical Resistance  

E-Print Network [OSTI]

superconducting tape2 , resistor, wire and/or other materials to serve as resistive samples Wire leadsTEACHER NOTES The Effect of Temperature on Electrical Resistance Abstract: This project allows students to experimentally discover the temperature dependence of resistance using a copper wire

Quigg, Chris

462

Nearly Constant Electrical Resistance over Large Temperature Range in  

E-Print Network [OSTI]

100190, China. Electrical resistance is a material property that usually varies enormously resistance can be realized. This work can inspire the search of other materials of such a quality. E lectrical resistance is the most conventional and also the most useful property of a material. The temper

Zexian, Cao

463

Critical challenges for EUV resist materials Patrick P. Naulleau,1  

E-Print Network [OSTI]

Critical challenges for EUV resist materials Patrick P. Naulleau,1 Christopher N. Anderson,1 Lorie of EUV resist materials. The major issue for the 22-nm half-pitch node remains simultaneously meeting photoresists. 2. STATUS OF RESIST MATERIALS FOR 22-NM HALF-PITCH Over the past few years, several chemically

464

THE ELECTRICAL RESISTANCE OF A GRAPH CAPTURES ITS  

E-Print Network [OSTI]

THE ELECTRICAL RESISTANCE OF A GRAPH CAPTURES ITS COMMUTE AND COVER TIMES Ashok K. Chandra random walks and electrical networks by showing that resistance in this network is intimately connected of the graph is replaced by a unit resistance. As an example of the interplay between electrical

Borenstein, Elhanan

465

Cone-based electrical resistivity tomography Adam Pidlisecky1  

E-Print Network [OSTI]

Cone-based electrical resistivity tomography Adam Pidlisecky1 , Rosemary Knight1 , and Eldad Haber2 and transport of the contaminants. Borehole- based electrical resistivity tomography ERT is a geophysical meth. The measurements yield values of resistance that can be inverted to determine the subsurface electrical

Knight, Rosemary

466

Relative electrical resistivities and poling of nonlinear optical polymeric waveguides  

E-Print Network [OSTI]

Relative electrical resistivities and poling of nonlinear optical polymeric waveguides Toma to determine the relative dc electrical resistivities of a series of linear and nonlinear optical polymers. The method can be used to identify low resistivity linear cladding materials for optimized electric field

Paris-Sud XI, Université de

467

Range of a projectile, including air resistance. Introduction  

E-Print Network [OSTI]

resistance, it is easy to show (elementary physics classes) that if we throw a projectile with a speed vRange of a projectile, including air resistance. Introduction Here we study the motion of a projectile thrown through the air, including the important effects of air resistance.We will investi- gate

Young, A. Peter

468

Identification of DNA marker for root-knot nematode resistance gene and characterization of disease resistance gene candidates in cotton  

E-Print Network [OSTI]

of root-knot nematode resistance (RNR) in Auburn 623 - one of the most desirable sources for RNR in Upland cottons, identification of DNA markers for the RNR genes and characterization of disease resistance gene candidates in cotton. Genetic analysis...

He, Limei

2000-01-01T23:59:59.000Z

469

Electrical Resistivity Correlation to Vadose Zone Sediment and Pore-Water Composition for the BC Cribs and Trenches Area  

SciTech Connect (OSTI)

This technical report documents the results of geochemical and soil resistivity characterization of sediment obtained from four boreholes drilled in the BC Cribs and Trench area. Vadose zone sediment samples were obtained at a frequency of about every 2.5 ft from approximately 5 ft bgs to borehole total depth. In total, 505 grab samples and 39 six-inch long cores were obtained for characterization. The pore-water chemical composition data, laboratory-scale soil resistivity and other ancillary physical and hydrologic measurements and analyses described in this report are designed to provide a crucial link between direct measurements on sediments and the surface-based electrical-resistivity information obtained via field surveys. A second goal of the sediment characterization was to measure the total and water-leachable concentrations of key contaminants of concern as a function of depth and distance from the footprints of inactive disposal facilities. The total and water-leachable concentrations of key contaminants will be used to update contaminant distribution conceptual models and to provide more data for improving base-line risk predictions and remedial alternative selections. The ERC ground truthing exercise for the individual boreholes showed mixed results. In general, the high concentrations of dissolved salts in the pore waters of sediments from C5923, C5924 and C4191 produced a low resistivity target in the processed resistivity field surveys, and variability could be seen in the resistivity data that could relate to the variability in pore- water concentrations but the correlations (regression R2 were mediocre ranging from 0.2 to 0.7 at best; where perfect correlation is 1.0). The field-based geophysical data also seemed to suffer from a sort of vertigo, where looking down from the ground surface, the target (e.g., maximum pore-water salt concentration) depth was difficult to resolve. The best correlations between the field electrical resistivity surveys and borehole pore water data sets were obtained when focusing on areal extent of the salt plume. Lateral resolution of the geophysical field data is best conducted by comparing an aggregated set of geophysical data on all boreholes together. When assembling the pore-water data for all four boreholes in an aerial view, the field ERC data produce a reasonable aerial picture of where high salt plumes exist below the BC Cribs and Trenches area. Future work that relies on more laboratory soil resistivity and incorporation of other field data (spectral gamma, neutron moisture and soil density logs) and physical and hydraulic measurements on samples obtained from the boreholes will used develop a more detailed petrophysical model of the sediments below BC Cribs and Trenches. This more detailed model can be used as a more realistic earth model in the inversion process to better manipulate the raw field survey data. It is also recommended that one more borehole be drilled after a thorough vetting of the current data with geophysics experts and other Hanford stakeholder to optimize where to place the borehole, what electrical and other geophysical surveys should be conducted , where to take sediment samples and what parameters should be measured on the sediments to attempt one more ground truthing exercise.

Serne, R. Jeffrey; Ward, Anderson L.; Um, Wooyong; Bjornstad, Bruce N.; Rucker, Dale F.; Lanigan, David C.; Benecke, Mark W.

2009-06-01T23:59:59.000Z

470

Social influence modeling on smartphone usage  

Science Journals Connector (OSTI)

This paper presents a probabilistic influence model for smartphone usage; it applies a latent group model to social influence. The probabilistic model is built on the assumption that a time series of students' application downloads and activations can ... Keywords: NMF, behavior prediction, latent structure analysis, matrix factorization, mobile application, recommendation, user influence

Masaji Katagiri; Minoru Etoh

2011-12-01T23:59:59.000Z

471

Sulfate and acid resistant concrete and mortar  

DOE Patents [OSTI]

The present invention relates to concrete, mortar and other hardenable mixtures comprising cement and fly ash for use in construction and other applications, which hardenable mixtures demonstrate significant levels of acid and sulfate resistance while maintaining acceptable compressive strength properties. The acid and sulfate hardenable mixtures of the invention containing fly ash comprise cementitious materials and a fine aggregate. The cementitous materials may comprise fly ash as well as cement. The fine aggregate may comprise fly ash as well as sand. The total amount of fly ash in the hardenable mixture ranges from about 60% to about 120% of the total amount of cement, by weight, whether the fly ash is included as a cementious material, fine aggregate, or an additive, or any combination of the foregoing. In specific examples, mortar containing 50% fly ash and 50% cement in cementitious materials demonstrated superior properties of corrosion resistance. 6 figs.

Liskowitz, J.W.; Wecharatana, M.; Jaturapitakkul, C.; Cerkanowicz, A.E.

1998-06-30T23:59:59.000Z

472

Sulfate and acid resistant concrete and mortar  

DOE Patents [OSTI]

The present invention relates to concrete, mortar and other hardenable mixtures comprising cement and fly ash for use in construction and other applications, which hardenable mixtures demonstrate significant levels of acid and sulfate resistance while maintaining acceptable compressive strength properties. The acid and sulfate hardenable mixtures of the invention containing fly ash comprise cementitious materials and a fine aggregate. The cementitous materials may comprise fly ash as well as cement. The fine aggregate may comprise fly ash as well as sand. The total amount of fly ash in the hardenable mixture ranges from about 60% to about 120% of the total amount of cement, by weight, whether the fly ash is included as a cementious material, fine aggregate, or an additive, or any combination of the foregoing. In specific examples, mortar containing 50% fly ash and 50% cement in cementitious materials demonstrated superior properties of corrosion resistance.

Liskowitz, John W. (Belle Mead, NJ); Wecharatana, Methi (Parsippany, NJ); Jaturapitakkul, Chai (Bangkok, TH); Cerkanowicz, deceased, Anthony E. (late of Livingston, NJ)

1998-01-01T23:59:59.000Z

473

AMTEC Response to Changes in Resistive Loading  

Science Journals Connector (OSTI)

An important aspect of electric power supply systems is their inherent response time to rapid changes in loading demands. This presentation reviews the experimental response of an Alkali Metal Thermal Electric Converter (AMTEC) system when switched from open circuit to stable resistive loads. Our data show a nominal 35?Watt AMTEC converter responded rapidly throughout the power curve. Response times from open circuit to delivering 90% of peak DC current were within 0.25 milliseconds to 0.85 milliseconds for a range of electrically resistive loads at several typical AMTEC operational temperatures. Such response times to load changes suggest that AMTEC may be suitable as a primary power supply or backup power supply for critical space applications.

Robert W. Fletcher; Thomas K. Hunt

2003-01-01T23:59:59.000Z

474

Electrical Resistance of Alpha Hydrogen?Palladium  

Science Journals Connector (OSTI)

Electrical resistancemeasurements of gas?charged alpha hydrogen?palladium alloys have been made in the range 100 to 400C. The fractional increase of palladiumresistance caused by addition of hydrogen is proportional to hydrogen concentration. The constant of proportionality is independent of temperature indicating that Matthiessen's rule is inapplicable to this system. When the results of this work are combined with those of previous authors all of the data can be adequately represented in the range 75 to 400C by the equation (R/R 0) 1 = (2.410.04) m where R is the resistance of alpha hydrogen?palladium R 0 is the resistance of hydrogen?free palladium and m is the hydrogen?to?palladium atom ratio.

W. T. Lindsay Jr.; F. W. Pement

1962-01-01T23:59:59.000Z

475

Recovery of electric resistance degraded by electromigration  

Science Journals Connector (OSTI)

Electric resistance degraded by electromigration at low temperatures is investigated by sweeping temperatures up to 400 K at a constant rate. Recovery (decrease) of the resistance is found and a first?order reaction model is applied to evaluate the activation energyspectra for this recovery. The energy spectra are found to broaden up to 1.1 eV. A comparison of the spectra with both the activation energy for the motion of vacancies and the spectra for as?deposited films prepared by electron?beam evaporation and dc sputtering indicates that the recovery comprises multienergy processes. The relaxation of mechanical stress gradients built up during the dc stress tests the relief of microstructural changes by bulk diffusion involving the cooperative motion of large groups of atoms and the formation of vacancyhydrogen complexes as intermediates are discussed as possible factors contributing to the broad activation energyspectra of the recovery.

Shin?ichi Ohfuji; Mitsuo Tsukada

1995-01-01T23:59:59.000Z

476

Electric Resistivity of Interstitial Compounds of Graphite  

Science Journals Connector (OSTI)

Assuming that the formation of interstitial compounds is accompanied by creation of excess holes in the otherwise full band of graphite it is shown that a linear energy?momentum relation at the Brillouin zone corners is incapable of explaining the decrease of the electric resistance with oxidation. It appears that for a more general model the decrease in relative resistance should be independent of temperature for large oxidations if suitable corrections for the initial conditions are made. Data for polycrystallinegraphite corrected for the existence of an energy gap and of excess holes in the untreated material give curves which converge for higher oxidation with the curve for natural graphite. Discussion of the low temperature properties of graphite leads to the conclusion that large graphite crystals possess slightly overlapping zones.

S. Mrozowski

1953-01-01T23:59:59.000Z

477

The electrical resistance of Cr films  

Science Journals Connector (OSTI)

Measurements of the thickness dependence of the electrical resistance of two very thin Cr films deposited at substrate temperatures of 385 and 360?C and pressures of 410? 7 and 10? 6 Torr are reported. Preliminary measurements of the thickness dependence of the Nel temperature (T N ) of the film deposited at 360?C at thicknesses ?10 nm are also presented. In these two films the resistance in the thickness region 2?d?7.5 nm can be very well described by R?[(d/d c )? 1 ]?t with d c equal to 1.640.20 and 1.030.20 nm respectively and t=1.340.11. The Nel temperatures show a turning point around 14 nm in agreement with the known thickness dependence of the stress. d T N /d S t has been found to be ?100 K/kbar where S t is the internal tensile stress in the film.

J. A. J. Lourens; S. Arajs; H. F. Helbig; L. Cheriet; El?Sayed A. Mehanna

1988-01-01T23:59:59.000Z

478

ACTIVE FEEDBACK STABILZATION OF THE RESISTIVE WALL MODE ON THE DIII-D DEVICE  

SciTech Connect (OSTI)

A proof of principle magnetic feedback stabilization experiment has been carried out to suppress the resistive wall mode (RWM), a branch of the ideal magnetohydrodynamic (MHD) kink mode under the influence of a stabilizing resistive wall, on the DIII-D tokamak device [Plasma Phys. and Contr. Fusion Research (International Atomic Energy Agency, Vienna, 1986), p. 159]. The RWM was successfully suppressed and the high beta duration above the no wall limit was extended to more than 50 times the resistive wall flux diffusion time. It was observed that the mode structure was well preserved during the time of the feedback application. Several lumped parameter formulations were used to study the feedback process. The observed feedback characteristics are in good qualitative agreement with the analysis. These results provide encouragement to future efforts towards optimizing the RWM feedback methodology in parallel to what has been successfully developed for the n = 0 vertical positional control. Newly developed MHD codes have been extremely useful in guiding the experiments and in providing possible paths for the next step.

M. OKABAYASHI; J. BIALEK; M.S. CHANCE; M.S. CHU; E.D. FREDRICKSON; A.M. GAROFALO; M. GRYAZNEVICH; R.E HATCHER; T.H. JENSEN; L.C. JOHNSON; R.J. LA HAYE; E,A. LAZARUS; M.A. MAKOWSKI; J. MANICKAM; G.A. NAVRATIL; J.T. SCOVILLE; E.J. STRAIT; A.D. TURNBULL; M.L. WALKER

2000-11-01T23:59:59.000Z

479

Experimental analysis of seismic resistance of timber-framed structures with stones and earth infill  

Science Journals Connector (OSTI)

Abstract The seismic performance of timber-framed structures filled with natural stones and earth mortar is analyzed by introducing three scales of experiments during which both cyclic and monotonic loadings are considered. At the connection scale, tests are performed in both normal and tangential directions to obtain the hysteretic behavior of nailed connections. At the elementary cell and shear wall scales, pushover and reversed-cycle tests are performed to obtain the hysteretic behavior as a function of infill characteristics. Walls without any openings (doors or windows) were considered. Through these tests, the influence of the infill on stiffness, maximum load or equivalent viscous damping is analyzed. The present work is then compared with three other experimental studies on the same type of traditional structures in order to provide answers regarding their seismic-resistant behavior. Based on this experimental multi-scale analysis, this article confirms that the timbered masonry structures have a relevant seismic resistant behavior and provides a full analysis useful for the development of a numerical tool aiming at predicting the seismic resistant behavior of this kind of structure.

F. Vieux-Champagne; Y. Sieffert; S. Grange; A. Polastri; A. Ceccotti; L. Daudeville

2014-01-01T23:59:59.000Z

480

Resistivity changes in carbon-implanted Teflon  

E-Print Network [OSTI]

UNDERGRADUATE RESEARCH FELLOW April 2004 Major: Nuclear Engineering RESISTIVITY CHANGES IN CARBON-IMPLANTED TEFLON A Senior Honors Thesis by MATTHEW R. JACKSON Submitted to the Office of Honors Programs k Academic Scholarships Texas A&M University... In partial fulfillment of the requirements of the UNIVERSITY UNDERGRADUATE RESEARCH FELLOW Approved as to style and content by: Ron Hart (Fellows Advisor) April 2004 Edward A. Funkhouser (Executive Director) Major: Nuclear Engineering ABSTRACT...

Jackson, Matthew R.

2013-02-22T23:59:59.000Z

Note: This page contains sample records for the topic "hydrological resistivity influenced" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Resistance after firing protected electric match  

DOE Patents [OSTI]

An electric match having electrical leads embedded in flame-producing compound is protected against an accidental resistance across the leads after firing by a length of heat-shrinkable tubing encircling the match body and having a skirt portion extending beyond the leads. The heat of the burning match and an adjacent thermal battery causes the tubing to fold over the end of the match body, covering the ends of the leads and protecting them from molten pieces of the battery.

Montoya, Arsenio P. (Albuquerque, NM)

1981-11-10T23:59:59.000Z

482

CFE resistivity studies at Cerro Prieto  

Science Journals Connector (OSTI)

In order to define the probable extent of the Cerro Prieto geothermal field and to establish the geothermal possibilities of the Imperial and Cerro Prieto faults, the Comisin Federal de Electricidad (CFE) performed about 200 vertical electric soundings during the last half of 1977 and first half of 1978. In these surveys, Schlumberger arrays were used with current electrode spacings of up to 10 km. The electrical study and its correlation with data collected using other geophysical methods and from several deep wells show that regional anomalies of high and low resistivity are associated with horst, graben and en echelon faults. It should be noted, however, that the boundaries of the area which could potentially be developed cannot be defined, since no sharp resistivity contrasts were interpreted. A low-resistivity anomaly south-east of Cerro Prieto is located in an area with no surface thermal manifestations. Though the anomaly might be associated with sediments having special porosity and salinity characteristics, the possibility that it could also correspond to some geothermal activity cannot be dismissed because of its proximity to the active Cerro Prieto fault.

A. Razo M.; F. Arellano G.; H. Fonseca L.

1980-01-01T23:59:59.000Z

483

Running title: electrical resistivity in forest soils1 Title: Monitoring forest soil properties with electrical resistivity3  

E-Print Network [OSTI]

1 Running title: electrical resistivity in forest soils1 2 Title: Monitoring forest soil properties with electrical resistivity3 4 Authors: Yoan Paillet1,* , Nathalie Cassagne2 , Jean-Jacques Brun1 5 6 1 Cemagref in a monitoring purpose. We explored the correlations between electrical resistivity and19 forest soil properties

Paris-Sud XI, Université de

484

Erythromycin-Resistant Group A Streptococci in Schoolchildren in Pittsburgh  

Science Journals Connector (OSTI)

...emergence and rapid spread of erythromycin resistance among these isolates in January 2001. Methods. Study Setting and Subjects. In 1998 we began a longitudinal study of the epidemiology of infections with group A streptococci in a private, tuition-supported elementary school with an enrollment of approximately... In a longitudinal study at an elementary school in Pittsburgh, group A streptococci with resistance to erythromycin were unexpectedly identified in surveillance throat cultures in January 2001. Through May 2001, nearly half the isolates were resistant to erythromycin, and 22 of 46 children with resistant isolates had multiple cultures that were positive for this resistant streptococcus.

Martin J.M.Green M.Barbadora K.A.Wald E.R.

2002-04-18T23:59:59.000Z

485

Novel Attrition-Resistant Fischer Tropsch Catalyst  

SciTech Connect (OSTI)

There is a strong national interest in the Fischer-Tropsch synthesis process because it offers the possibility of making liquid hydrocarbon fuels from reformed natural gas or coal and biomass gasification products. This project explored a new approach that had been developed to produce active, attrition-resistant Fischer-Tropsch catalysts that are based on glass-ceramic materials and technology. This novel approach represented a promising solution to the problem of reducing or eliminating catalyst attrition and maximizing catalytic activity, thus reducing costs. The technical objective of the Phase I work was to demonstrate that glass-ceramic based catalytic materials for Fischer-Tropsch synthesis have resistance to catalytic deactivation and reduction of particle size superior to traditional supported Fischer-Tropsch catalyst materials. Additionally, these novel glass-ceramic-based materials were expected to exhibit catalytic activity similar to the traditional materials. If successfully developed, the attrition-resistant Fischer-Tropsch catalyst materials would be expected to result in significant technical, economic, and social benefits for both producers and public consumers of Fischer-Tropsch products such as liquid fuels from coal or biomass gasification. This program demonstrated the anticipated high attrition resistance of the glass-ceramic materials. However, the observed catalytic activity of the materials was not sufficient to justify further development at this time. Additional testing documented that a lack of pore volume in the glass-ceramic materials limited the amount of surface area available for catalysis and consequently limited catalytic activity. However, previous work on glass-ceramic catalysts to promote other reactions demonstrated that commercial levels of activity can be achieved, at least for those reactions. Therefore, we recommend that glass-ceramic materials be considered again as potential Fischer-Tropsch catalysts if it can be demonstrated that materials with adequate pore volume can be produced. During the attrition resistance tests, it was learned that the glass-ceramic materials are very abrasive. Attention should be paid in any further developmental efforts to the potential for these hard, abrasive materials to damage reactors.

Weast, Logan, E.; Staats, William, R.

2009-05-01T23:59:59.000Z

486

Modeling temporal variations of electrical resistivity associated with pore pressure change in a kilometer-scale  

E-Print Network [OSTI]

Modeling temporal variations of electrical resistivity associated with pore pressure change, and resistivity structures that create the distortion are identified. The electrically resistive crystalline, electrical resistivity changes in structures can be detected through an amplification of the static

Paris-Sud XI, Université de

487

Structural Dependence of Grain Boundary Resistivity in Copper Nanowires  

SciTech Connect (OSTI)

We report the direct measurement of individual grain boundary (GB) resistances and the critical role of GB structure in the increased resistivity in copper nanowires. By measuring both intra- and inter-grain resistance with a four-probe scanning tunneling microscope, large resistance jumps are revealed owing to successive scattering across high-angle random GBs, while the resistance changes at twin and other coincidence boundaries are negligibly small. The impurity distributions in the nanowires are characterized in correlating to the microstructures. The resistance of high symmetry coincidence GBs and the impurity contributions are then calculated using a first-principle method which confirms that the coincidence GBs have orders of magnitude smaller resistance than the high-angle random GBs.

Evans III, Boyd Mccutchen [ORNL; Kenik, Edward A [ORNL; Kim, Tae Hwan [ORNL; Kulkarni, Nagraj S [ORNL; Li, An-Ping [ORNL; Meyer III, Harry M [ORNL; Nicholson, Don M [ORNL; Radhakrishnan, Bala [ORNL; Zhang, Xiaoguang [ORNL

2011-01-01T23:59:59.000Z

488

Alternative Fuels Data Center: State Vehicle Low Rolling Resistance Tire  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Vehicle Low Vehicle Low Rolling Resistance Tire Requirement to someone by E-mail Share Alternative Fuels Data Center: State Vehicle Low Rolling Resistance Tire Requirement on Facebook Tweet about Alternative Fuels Data Center: State Vehicle Low Rolling Resistance Tire Requirement on Twitter Bookmark Alternative Fuels Data Center: State Vehicle Low Rolling Resistance Tire Requirement on Google Bookmark Alternative Fuels Data Center: State Vehicle Low Rolling Resistance Tire Requirement on Delicious Rank Alternative Fuels Data Center: State Vehicle Low Rolling Resistance Tire Requirement on Digg Find More places to share Alternative Fuels Data Center: State Vehicle Low Rolling Resistance Tire Requirement on AddThis.com... More in this section... Federal State Advanced Search

489

Electrical resistance tomography from measurements inside a steel cased borehole  

DOE Patents [OSTI]

Electrical resistance tomography (ERT) produced from measurements taken inside a steel cased borehole. A tomographic inversion of electrical resistance measurements made within a steel casing was then made for the purpose of imaging the electrical resistivity distribution in the formation remotely from the borehole. The ERT method involves combining electrical resistance measurements made inside a steel casing of a borehole to determine the electrical resistivity in the formation adjacent to the borehole; and the inversion of electrical resistance measurements made from a borehole not cased with an electrically conducting casing to determine the electrical resistivity distribution remotely from a borehole. It has been demonstrated that by using these combined techniques, highly accurate current injection and voltage measurements, made at appropriate points within the casing, can be tomographically inverted to yield useful information outside the borehole casing.

Daily, William D. (Livermore, CA); Schenkel, Clifford (Walnut Creek, CA); Ramirez, Abelardo L. (Pleasanton, CA)

2000-01-01T23:59:59.000Z

490

Modeling of hydrologic conditions and solute movement in processed oil shale waste embankments under simulated climatic conditions. Final report, November 1995  

SciTech Connect (OSTI)

A study is described on the hydrological and geotechnical behavior of an oil shale solid waste. The objective was to obtain information which can be used to assess the environmental impacts of oil shale solid waste disposal in the Green River Basin. The spent shale used in this study was combusted by the Lurgi-Ruhrgas process by Rio Blanco Oil Shale Company, Inc. Laboratory bench-scale testing included index properties, such as grain size distribution and Atterberg limits, and tests for engineering properties including hydraulic conductivity and shear strength. Large-scale tests were conducted on model spent shale waste embankments to evaluate hydrological response, including infiltration, runoff, and seepage. Large-scale tests were conducted at a field site in western Colorado and in the Environmental Simulation Laboratory (ESL)at the University of Wyoming. The ESL tests allowed the investigators to control rainfall and temperature, providing information on the hydrological response of spent shale under simulated severe climatic conditions. All experimental methods, materials, facilities, and instrumentation are described in detail, and results are given and discussed. 34 refs.

NONE

1995-12-31T23:59:59.000Z

491

Fracture toughness and crack-resistance curve behavior in metallic glass-matrix composites  

E-Print Network [OSTI]

growthresistanceofthecompositeBMGmaterials,comparedmaterials exhibitconsiderableplasticityandthusaresistance?

Launey, Maximilien E.

2009-01-01T23:59:59.000Z

492

On the multiscale origins of fracture resistance in human bone and its biological degradation  

E-Print Network [OSTI]

the inherent resistance of the material to i.e. , the materials resistance to crack extension.

Zimmermann, Elizabeth A.

2012-01-01T23:59:59.000Z

493

E-Print Network 3.0 - atmospheric corrosion resistance Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

are highly improved 12;Ongoing experimental research Objectives: Test the corrosion resistance... economical corrosion-resistant materials. Advanced coating ... Source:...

494

E-Print Network 3.0 - antimicrobial resistance prevalence Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

resistant bacteria and resistance... : Antimicrobial; ... Source: Singer, Randall - College of Veterinary Medicine, University of Minnesota Collection: Biology and...

495

E-Print Network 3.0 - antimalarial drug resistance Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

disease pathophysiology, drug resistance... and antimalarial resistance, and optimising treatments for pregnant women melioidosis - conducting clinical... treatments,...

496

Modeling shear failure and permeability enhancement due to coupled Thermal-Hydrological-Mechanical processes in Enhanced Geothermal Reservoirs  

SciTech Connect (OSTI)

The connectivity and accessible surface area of flowing fractures, whether natural or man-made, is possibly the single most important factor, after temperature, which determines the feasibility of an Enhanced Geothermal System (EGS). Rock deformation and in-situ stress changes induced by injected fluids can lead to shear failure on preexisting fractures which can generate microseismic events, and also enhance the permeability and accessible surface area of the geothermal formation. Hence, the ability to accurately model the coupled thermal-hydrologic-mechanical (THM) processes in fractured geological formations is critical in effective EGS reservoir development and management strategies. The locations of the microseismic events can serve as indicators of the zones of enhanced permeability, thus providing vital information for verification of the coupled THM models. We will describe a general purpose computational code, FEHM, developed for this purpose, that models coupled THM processes during multiphase fluid flow and transport in fractured porous media. The code incorporates several models of fracture aperture and stress behavior combined with permeability relationships. We provide field scale examples of applications to geothermal systems to demonstrate the utility of the method.

Kelkar, Sharad [Los Alamos National Laboratory

2011-01-01T23:59:59.000Z

497

Modeling of hydrologic conditions and solute movement in processed oil shale waste embankments under simulated climatic conditions  

SciTech Connect (OSTI)

The scope of the research program and the continuation is to study interacting hydrologic, geotechnical, and chemical factors affecting the behavior and disposal of combusted processed oil shale. The research combines bench-scale testing with large scale research sufficient to describe commercial scale embankment behavior. The large scale approach was accomplished by establishing five lysimeters, each 7.3 [times] 3.0 [times] 3.0 m deep, filled with processed oil shale that has been retorted and combusted by the Lurgi-Ruhrgas (Lurgi) process. Approximately 400 tons of Lurgi processed oil shale waste was provided by Rio Blanco Oil Shale Co., Inc. (RBOSC) through a separate cooperative agreement with the University of Wyoming (UW) to carry out this study. Three of the lysimeters were established at the RBOSC Tract C-a in the Piceance Basin of Colorado. Two lysimeters were established in the Environmental Simulation Laboratory (ESL) at UW. The ESL was specifically designed and constructed so that a large range of climatic conditions could be physically applied to the processed oil shale which was filled in the lysimeter cells.

Turner, J.P.; Hasfurther, V.

1992-05-04T23:59:59.000Z

498

A Mountain-Scale Thermal Hydrologic Model for Simulating FluidFlow and Heat Transfer in Unsaturated Fractured Rock  

SciTech Connect (OSTI)

A multidimensional, mountain-scale, thermal-hydrologic (TH) numerical model is presented for investigating unsaturated flow behavior in response to decay heat from the radioactive waste repository in the Yucca Mountain unsaturated zone (UZ), Nevada. The model, consisting of both two-dimensional (2-D) and three-dimensional (3-D) representations of the UZ repository system, is based on the current repository design, drift layout, thermal loading scenario, and estimated current and future climate conditions. This mountain-scale TH model evaluates the coupled TH processes related to mountain-scale UZ flow. It also simulates the impact of radioactive waste heat release on the natural hydrogeological system, including heat-driven processes occurring near and far away from the emplacement tunnels or drifts. The model simulations predict thermally perturbed liquid saturation, gas- and liquid-phase fluxes, and water and rock temperature elevations, as well as the changes in water flux driven by evaporation/condensation processes and drainage between drifts. These simulations provide mountain-scale thermally perturbed flow fields for assessing the repository performance under thermal loading conditions.

Wu, Yu-Shu; Mukhopadhyay, Sumit; Zhang, Keni; Bodvarsson,Gudmundur S.

2005-05-25T23:59:59.000Z

499

Influences of semiconductor morphology on the mechanical fatigue behavior of flexible organic electronics  

SciTech Connect (OSTI)

The influence of crystalline morphology on the mechanical fatigue of organic semiconductors (OSCs) was investigated using 6,13-bis(triisopropylsilylethynyl)pentacene (TIPS-pentacene) as a crystalline OSC and poly(triarylamine) (PTAA) as an amorphous OSC. During cyclic bending, resistances of the OSCs were monitored using the transmission-line method on a metal-semiconductor-metal structure. The resistance of the TIPS-pentacene increased under fatigue damage in tensile-stress mode, but no such degradation was observed in the PTAA. Both OSCs were stable under compressive bending fatigue. The formation of intergranular cracks at the domain boundaries of the TIPS-pentacene was responsible for the degradation of its electrical properties under tensile bending fatigue.

Lee, Young-Joo; Yeon, Han-Wool; Shin, Hae-A-Seul; Joo, Young-Chang, E-mail: ycjoo@snu.ac.kr [Department of Materials Science and Engineering, Seoul National University, 151-744 Seoul (Korea, Republic of)] [Department of Materials Science and Engineering, Seoul National University, 151-744 Seoul (Korea, Republic of); Uk Lee, Yong; Evans, Louise A. [Center for Process Innovation Limited, Thomas Wright Way, NETPark, Sedgefield, TS21 3FG County Durham (United Kingdom)] [Center for Process Innovation Limited, Thomas Wright Way, NETPark, Sedgefield, TS21 3FG County Durham (United Kingdom)

2013-12-09T23:59:59.000Z

500

Thermophysical Properties of Heat Resistant Shielding Material  

SciTech Connect (OSTI)

This project was aimed at determining thermal conductivity, specific heat and thermal expansion of a heat resistant shielding material for neutron absorption applications. These data are critical in predicting the structural integrity of the shielding under thermal cycling and mechanical load. The measurements of thermal conductivity and specific heat were conducted in air at five different temperatures (-31 F, 73.4 F, 140 F, 212 F and 302 F). The transient plane source (TPS) method was used in the tests. Thermal expansion tests were conducted using push rod dilatometry over the continuous range from -40 F (-40 C) to 302 F (150 C).

Porter, W.D.

2004-12-15T23:59:59.000Z