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Note: This page contains sample records for the topic "lead acid model" from the National Library of EnergyBeta (NLEBeta).
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1

A Mathematical Model of the Lead-Acid Battery to Address the Effect of Corrosion  

E-Print Network [OSTI]

A Mathematical Model of the Lead-Acid Battery to Address the Effect of Corrosion Vijayasekaran for the corrosion process that occurs at the interface between the active material and grid material of the positive plate. Three different modeling approaches are used to incorporate the effect of corrosion in the first

Subramanian, Venkat

2

ENERGY MODELING OF A LEAD-ACID BATTERY WITHIN HYBRID WIND / PHOTOVOLTAIC SYSTEMS  

E-Print Network [OSTI]

ENERGY MODELING OF A LEAD-ACID BATTERY WITHIN HYBRID WIND / PHOTOVOLTAIC SYSTEMS O. GERGAUD, G Abstract: Within the scope of full-scale energy modeling of a hybrid wind / photovoltaic system coupled-power hybrid wind/photovoltaic production system (20 ASE modules for a 2- kW polycrystalline silicon peak

Paris-Sud XI, Université de

3

A two-dimensional mathematical model of a porous lead dioxide electrode in a lead-acid cell  

E-Print Network [OSTI]

(ir? irs) MODEL DEVELOPMENT 9 11 12 13 14 14 15 15 16 17 V. A. Divergence oi' Current B. Porosity Balance C. Electrode Kinetics D. Ohm's Lave in Solution E. Electrolyte Material Balance NUMERICAL SOLUTION TECHNIQUE 18 19 20 22 24... of the active species within the porous electrodes using a macroscopic approach, and apply a Butler-Volmer type polarization equation. Simonsson (9) and Micka and Rousar (10-13) concentrate their efforts on the porous electrodes of the lead-acid battery...

Dimpault-Darcy, Eric Christophe

2012-06-07T23:59:59.000Z

4

Primer on lead-acid storage batteries  

SciTech Connect (OSTI)

This handbook was developed to help DOE facility contractors prevent accidents caused during operation and maintenance of lead-acid storage batteries. Major types of lead-acid storage batteries are discussed as well as their operation, application, selection, maintenance, and disposal (storage, transportation, as well). Safety hazards and precautions are discussed in the section on battery maintenance. References to industry standards are included for selection, maintenance, and disposal.

NONE

1995-09-01T23:59:59.000Z

5

Lightweight, durable lead-acid batteries  

DOE Patents [OSTI]

A lightweight, durable lead-acid battery is disclosed. Alternative electrode materials and configurations are used to reduce weight, to increase material utilization and to extend service life. The electrode can include a current collector having a buffer layer in contact with the current collector and an electrochemically active material in contact with the buffer layer. In one form, the buffer layer includes a carbide, and the current collector includes carbon fibers having the buffer layer. The buffer layer can include a carbide and/or a noble metal selected from of gold, silver, tantalum, platinum, palladium and rhodium. When the electrode is to be used in a lead-acid battery, the electrochemically active material is selected from metallic lead (for a negative electrode) or lead peroxide (for a positive electrode).

Lara-Curzio, Edgar (Lenoir City, TN); An, Ke (Knoxville, TX); Kiggans, Jr., James O. (Oak Ridge, TN); Dudney, Nancy J. (Knoxville, TN); Contescu, Cristian I. (Knoxville, TN); Baker, Frederick S. (Oak Ridge, TN); Armstrong, Beth L. (Clinton, TN)

2011-09-13T23:59:59.000Z

6

Lightweight, durable lead-acid batteries  

SciTech Connect (OSTI)

A lightweight, durable lead-acid battery is disclosed. Alternative electrode materials and configurations are used to reduce weight, to increase material utilization and to extend service life. The electrode can include a current collector having a buffer layer in contact with the current collector and an electrochemically active material in contact with the buffer layer. In one form, the buffer layer includes a carbide, and the current collector includes carbon fibers having the buffer layer. The buffer layer can include a carbide and/or a noble metal selected from of gold, silver, tantalum, platinum, palladium and rhodium. When the electrode is to be used in a lead-acid battery, the electrochemically active material is selected from metallic lead (for a negative electrode) or lead peroxide (for a positive electrode).

Lara-Curzio, Edgar; An, Ke; Kiggans, Jr., James O; Dudney, Nancy J; Contescu, Cristian I; Baker, Frederick S; Armstrong, Beth L

2013-05-21T23:59:59.000Z

7

acid mmaiii leads: Topics by E-print Network  

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

Theses and Dissertations Summary: ??The performance of lead-acid batteries for energy storage in photovoltaicdieselbattery hybrid systems strongly depends on several...

8

Sandia National Laboratories: Due Diligence on Lead Acid Battery...  

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

the lead acid batteries are processed and recycled legally under a regularly audited New Mexico hazardous waste management permit, Pollution Prevention (P2) was prompted to...

9

AVTA: 2010 Honda Civic HEV with Experimental Ultra Lead Acid...  

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

and development. The following reports describe results of testing done on a 2010 Civic hybrid electric vehicle with an advanced experimental ultra-lead acid battery, an...

10

Anaerobic microbial dissolution of lead and production of organic acids  

DOE Patents [OSTI]

The present invention related to an anaerobic bacterial culture of Clostridium sp. ATCC No. 53464 which solubilizes lead oxide under anaerobic conditions in coal and industrial wastes and therefore presents a method of removing lead from such wastes before they are dumped into the environment. The rat of lead dissolution during logarithmic growth of the bacteria in 40 ml medium containing 3.32 ..mu..moles of lead as lead oxide was 0.042 ..mu..moles m1/sup /-/1/ hr/sup /-/1/. Dissolution of lead oxide by the bacterial isolate is due to the production of metabolites and acidity in the culture medium. The major metabolites are acetic, butyric and lactic acid. The major metabolites are acetic, butyric and lactic acid. Clostridium sp. ATCC No. 53464 can be used in the recovery of the strategic metals from ores and wastes and also for the production of lactic acid for commercial purposes. The process yields large quantities of lactic acid as well as lead complexed in a stable form with said acids. 4 figs., 3 tabs.

Francis, A.J.; Dodge, C.; Chendrayan, K.; Quinby, H.L.

1987-04-16T23:59:59.000Z

11

Anaerobic microbial dissolution of lead and production of organic acids  

DOE Patents [OSTI]

The present invention relates to an anaerobic bacterial culture of Clostridium sp. ATCC No. 53464 which solubilizes lead oxide under anaerobic conditions in coal and industrial wastes and therefore presents a method of removing lead from such wastes before they are dumped into the environment. The rate of lead dissolution during logarithmic growth of the bacteria in 40 ml medium containing 3.32 .mu.moles of lead as lead oxide was 0.042 .mu.moles ml.sup.-1 hr.sup.-1. Dissolution of lead oxide by the bacterial isolate is due to the production of metabolites and acidity in the culture medium. The major metabolites are acetic, butyric and lactic acid. Clostridium sp. ATCC No. 53464 can be used in the recovery of strategic metals from ores and wastes and also for the production of lactic acid for commercial purposes. The process yields large quantities of lactic acid as well as lead complexed in a stable form with said acids.

Francis, Arokiasamy J. (Middle Island, NY); Dodge, Cleveland (Wading River, NY); Chendrayan, Krishnachetty (Coimbatore Tamil Nadu, IN); Quinby, Helen L. (Cambridge, MD)

1988-01-01T23:59:59.000Z

12

Operational experiences in lead-acid batteries for photovoltaic systems  

SciTech Connect (OSTI)

MIT Lincoln Laboratory has designed photovoltaic systems which use different kinds of lead-acid batteries, including units normally used for starting, lighting, and ignition (SLI) and for motive power. The experiences gained from four of these battery subsystems during field operation, particularly battery type versus system load, versus performance characteristics, and versus expected lifetime, are compared and analyzed.

Brench, B. L.

1981-01-01T23:59:59.000Z

13

System for agitating the acid in a lead-acid battery  

DOE Patents [OSTI]

A system and method for agitating the acid in a large lead-sulfuric acid storage battery of the calcium type. An air-lift is utilized to provide the agitation. The air fed to the air-lift is humidified prior to being delivered to the air-lift.

Weintraub, Alvin (Schenectady, NY); MacCormack, Robert S. (Glenville, NY)

1987-01-01T23:59:59.000Z

14

Advanced Lead Acid Battery Consortium | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectric Coop,SaveWhiskeyEnergyAd-VentaAddison is aAdenaAdrian isLead Acid

15

acid biosynthesis leads: Topics by E-print Network  

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

Websites Summary: bioavailability of aluminum triggered by in- dustrialization and acid rain 20. The presence of organic acidsThe Metabolism of Aluminum Citrate and...

16

Anaerobic microbial dissolution of lead and production of organic acids  

DOE Patents [OSTI]

The present invention relates to a method of solubilizing lead, in the form of lead oxide, found in industrial wastes, before these wastes are dumped into the environment. The lead is solubilized by dissolving the lead oxide in the wastes through contact with an anaerobic bacterial culture containing the bacterium ATCC No. 53464. The solubilized lead can then be removed from the wastes by chemical separation. It could also be removed by extending the contact period with the bacterial culture. As the culture grows, the solubilized lead is removed from the wastes by bioaccumulation by the microorganism or by immobilization by a polymer-like material produced by the microorganism. At this point, the lead is then removed from the wastes when the waste material is separated from the bacterial culture. If desired, the bacterial culture could be digested at this point to yield relatively pure lead for further industrial use.

Francis, A.J.; Dodge, C.; Chendrayan, K.

1986-02-28T23:59:59.000Z

17

Towards modeling gadolinium-lead-borate glasses  

SciTech Connect (OSTI)

Infrared spectra of gadolinium-lead-borate glasses of the xGd{sub 2}O{sub 3}.(100 - x)[3B{sub 2}O{sub 3}.PbO] system, where x = 0, 5, 10, 15, 25, 35 and 50 mol.%, have been recorded to explore the role of content of gadolinium ions behaving as glass modifier. The FTIR spectroscopy data for the xGd{sub 2}O{sub 3}.(1 - x)[3B{sub 2}O{sub 3}.PbO] glasses show the structural role of lead ions as a network-formers and of the gadolinium ions network modifiers. Adding of the rare earth ion up to 35 mol.% into the glass matrix, the IR bands characteristic to the studied glasses become sharper and more pronounced. Structural changes, as recognized by analyzing band shapes of IR spectra, revealed that Gd{sub 2}O{sub 3} causes a change from the continuous borate network to the continuous lead-borate network interconnected through Pb-O-B and B-O-B bridges and the transformation of some tetrahedral [BO{sub 4}] units into trigonal [BO{sub 3}] units. Then, gadolinium ions have affinity towards [BO{sub 3}] structural units which contain non-bridging oxygens necessary for the charge compensation because the more electronegative [BO{sub 3}] structural units were implied in the formation of B-O-Gd bonds and the transformation of glass network into a glass ceramic. We propose a possible structural model of building blocks for the formation of continuous random 3B{sub 2}O{sub 3}.PbO network glass used by density functional theory (DFT) calculations. DFT calculations show that lead atoms occupy three different sites in the proposed model. The first is coordinated with six oxygen atoms forming distorted octahedral geometries. The second lead atom has an octahedral oxygen environment and the five longer Pb-O bonds are considered as participating in the metal coordination scheme. The third lead atom has ionic character. In agreement with the results offered by the experimental FTIR data, the theoretical IR data confirm that our proposed structure is highly possible.

Rada, S., E-mail: Simona.Rada@phys.utcluj.ro [Department of Physics, Technical University of Cluj-Napoca, 400641 Cluj-Napoca (Romania); Ristoiu, T. [Department of Physics, Technical University of Cluj-Napoca, 400641 Cluj-Napoca (Romania)] [Department of Physics, Technical University of Cluj-Napoca, 400641 Cluj-Napoca (Romania); Rada, M. [Department of Mechatronic, Technical University of Cluj-Napoca, 400641 Cluj-Napoca (Romania)] [Department of Mechatronic, Technical University of Cluj-Napoca, 400641 Cluj-Napoca (Romania); Coroiu, I. [Department of Physics, Technical University of Cluj-Napoca, 400641 Cluj-Napoca (Romania)] [Department of Physics, Technical University of Cluj-Napoca, 400641 Cluj-Napoca (Romania); Maties, V. [Department of Mechatronic, Technical University of Cluj-Napoca, 400641 Cluj-Napoca (Romania)] [Department of Mechatronic, Technical University of Cluj-Napoca, 400641 Cluj-Napoca (Romania); Culea, E. [Department of Physics, Technical University of Cluj-Napoca, 400641 Cluj-Napoca (Romania)] [Department of Physics, Technical University of Cluj-Napoca, 400641 Cluj-Napoca (Romania)

2010-01-15T23:59:59.000Z

18

Short communication Real-time estimation of lead-acid battery parameters: A dynamic  

E-Print Network [OSTI]

-charged and over-discharged; similarly, reliable SOH estimates enhance preventive maintenance and life cycle cost situations. © 2014 Elsevier B.V. All rights reserved. 1. Introduction Lead-acid batteries provide low-costShort communication Real-time estimation of lead-acid battery parameters: A dynamic data

Ray, Asok

19

Analysis of lead-acid battery deep-cycle accelerated testing data  

SciTech Connect (OSTI)

Battelle conducted a detailed analysis of the deep cycle, accelerated test data (at a nominal 70 C) obtained by Exide in the three-year, Phase I program to develop advanced lead-acid batteries for utility load leveling. Cycle life results for 60 lead-acid cells in three fractional factorial experiments were analyzed to develop quantitative relationships for real-time cycles to failure as a function of cell design variables. Important factors affecting cycle life were depth of discharge with respect to plate active material and acid within the plate stack, acid specific gravity, separator system design, and additives in the active material.

Clifford, J.E.; Thomas, R.E.

1984-06-01T23:59:59.000Z

20

Lead acid battery pulse discharge investigation. Final report  

SciTech Connect (OSTI)

The effects of high current pulses caused by electric vehicle silicon-controlled rectifier and transistor chopper controllers on battery energy, lifetime, and microstructure were studied. Test equipment and results are described. It was found that the energy of improved golf cart-type batteries deteriorated under pulsed conditions by about 10% with respect to dc conditions for pulses between 16 and 333 Hz - no difference was noted above 333 Hz. Frequencies and duty cycles characteristic of electric vehicle controllers produce ampere-hour capacities similar in magnitude to dc discharges of the same average currents. The amount of positive plate corrosion under pulsed conditions was about twice that ot the unpulsed. Unusually large lead sulfate crystals were found in isolated colonies in pulsed plates, whereas a battery that had been discharged each cycle at an equivalent steady state did not show these large crystals. 5 figures, 3 tables. (RWR)

Dowgiallo, E

1980-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "lead acid model" 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

Method of making a sealed lead-acid battery with a gel electrolyte and sealed lead-acid storage battery made according to this method  

SciTech Connect (OSTI)

A method is described of making a sealed lead-acid storage battery having a plurality of electrodes and a gel electrolyte consisting substantially of sulfuric acid and a gelling agent, comprising the steps of: (a) activating a dry unformed battery by filling the battery with sulfuric acid, (b) maintaining the battery on open circuit or a period of time sufficient to chemically bond sulphuric acid as sulfate to the electrodes and lower the specific gravity of the acid to the desired gelling value, (c) dumping the free acid from the battery, (d) adding a solution of gelling agent and sulfuric acid to fill the battery to the normal formation level, (e) formation charging the battery by applying a constant charge current of 5-16 A/100 Ah for an input of 200-300 Ah/lb. positive active material whereby gelling of the electrolyte is effected, (f) when formation is complete, removing excess liquid, if any, to top of electrodes, and (g) sealing the battery with a pressure relief valve.

Chreitzberg, A.M.; Chiacchio, F.J.

1987-08-18T23:59:59.000Z

22

Program to analyze the failure mode of lead-acid batteries  

SciTech Connect (OSTI)

The electrical characteristics of large lead-acid cells from nuclear power plants were studied. The overall goal was to develop nondestructive tests to predict cell failure using this easily obtained information. Cell capacitance, internal resistance, reaction resistance for hydrogen evolution and cell capacity were measured on a lead-calcium cell in good condition. A high float voltage and low internal resistance were found to correlate with good cell capacity in cells selected from a set of six lead-antimony cells in poor condition.

Zuckerbrod, D.

1986-03-01T23:59:59.000Z

23

Quadratic voltage profiles in lead acid cells during slow, steady processes  

E-Print Network [OSTI]

It is standard lore that the voltage profile varies linearly in space within the electrolyte of a lead acid cell under slow, steady discharge. However, this hypothesis has never been put to the test. A recent theory predicts a uniform, non...

Haaser, Robert Anthony

1999-01-01T23:59:59.000Z

24

Recycle Batteries CSM recycles a variety of battery types including automotive, sealed lead acid, nickel  

E-Print Network [OSTI]

metal hydride and lithium ion batteries. The use of these batteries is increasing as a green, nickel metal hydride and lithium ion batteries. Please contact EHS if you need an accumulation containerRecycle Batteries CSM recycles a variety of battery types including automotive, sealed lead acid

25

Modeling of Acid Fracturing in Carbonate Reservoirs  

E-Print Network [OSTI]

The acid fracturing process is a thermal, hydraulic, mechanical, and geochemical (THMG)-coupled phenomena in which the behavior of these variables are interrelated. To model the flow behavior of an acid into a fracture, mass and momentum balance...

Al Jawad, Murtada s

2014-06-05T23:59:59.000Z

26

Lead  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector General Office0-72.pdfGeorgeDoesn't Happen to HighJosephNOx Traps forLM2LarryLaws andtopic Lead

27

Using Acid Number as a Leading Indicator of Refrigeration and Air Conditioning System Performance  

SciTech Connect (OSTI)

This report summarizes a literature review to assess the acidity characteristics of the older mineral oil and newer polyolester (POE) refrigeration systems as well as to evaluate acid measuring techniques used in other non-aqueous systems which may be applicable for refrigeration systems. Failure in the older chlorofluorocarbon/hydrochlorofluorocarbon (CFC/HCFC) / mineral oil systems was primarily due to thermal degradation of the refrigerant which resulted in the formation of hydrochloric and hydrofluoric acids. These are strong mineral acids, which can, over time, severely corrode the system metals and lead to the formation of copper plating on iron surfaces. The oil lubricants used in the older systems were relatively stable and were not prone to hydrolytic degradation due to the low solubility of water in oil. The refrigerants in the newer hydrofluorocarbon (HFC)/POE systems are much more thermally stable than the older CFC/HCFC refrigerants and mineral acid formation is negligible. However, acidity is produced in the new systems by hydrolytic decomposition of the POE lubricants with water to produce the parent organic acids and alcohols used to prepare the POE. The individual acids can therefore vary but they are generally C5 to C9 carboxylic acids. Organic acids are much weaker and far less corrosive to metals than the mineral acids from the older systems but they can, over long time periods, react with metals to form carboxylic metal salts. The salts tend to accumulate in narrow areas such as capillary tubes, particularly if residual hydrocarbon processing chemicals are present in the system, which can lead to plugging. The rate of acid production from POEs varies on a number of factors including chemical structure, moisture levels, temperature, acid concentration and metals. The hydrolysis rate of reaction can be reduced by using driers to reduce the free water concentration and by using scavenging chemicals which react with the system acids. Total acid number (TAN), which includes both mineral acids and organic acids, is therefore a useful indicator which can be used to monitor the condition of the system in order to perform remedial maintenance, when required, to prevent system failure. The critical TAN value is the acid level at which remedial action should be taken to prevent the onset of rapid acid formation which can result in system failure. The level of 0.05 mg KOH/g of oil was established for CFC/mineral oil systems based on analysis of 700 used lubricants from operating systems and failed units. There is no consensus within the refrigeration industry as to the critical TAN value for HFC/POE systems, however, the value will be higher than the CFC/mineral oil systems critical TAN value because of the much weaker organic acids produced from POE. A similar study of used POE lubricants should be performed to establish a critical TAN limit for POE systems. Titrimetric analysis per ASTM procedures is the most commonly used method to determine TAN values in lubricants in the refrigeration industry and other industries dealing with lubricating oils. For field measurements, acid test kits are often used since they provide rapid, semi-quantitative TAN results.

Dennis Cartlidge; Hans Schellhase

2003-07-31T23:59:59.000Z

28

Research, development and demonstration of lead-acid batteries for electric vehicle propulsion. Annual report, 1979  

SciTech Connect (OSTI)

This report describes work performed from October 1, 1978 to September 30, 1979. The approach for development of both the Improved State-of-the-Art (ISOA) and Advanced lead-acid batteries is three pronged. This approach concentrates on simultaneous optimization of battery design, materials, and manufacturing processing. The 1979 fiscal year saw the achievement of significant progress in the program. Some of the major accomplishments of the year are outlined. 33 figures, 13 tables. (RWR)

Not Available

1980-06-01T23:59:59.000Z

29

Laboratory evaluation and analysis of advanced lead-acid load-leveling batteries  

SciTech Connect (OSTI)

Argonne National Laboratory has conducted an extensive evaluation of advanced lead-acid batteries developed by the Exide Corporation for load-leveling applications. This paper presents the results of performance and accelerated life tests conducted on these batteries over a five-year period. This paper describes the operational reliability and maintenance requirements for this technology, and also includes analyses of the batteries' thermal characteristics, arsine/stibine emission rates, and cell degradation modes as determined from post-test examinations.

Miller, J.F.; Mulcahey, T.P.; Christianson, C.C.; Marr, J.J.; Smaga, J.A.

1987-01-01T23:59:59.000Z

30

Testing and evaluation of advanced lead-acid batteries for utility load-leveling applications  

SciTech Connect (OSTI)

Testing and evaluation of advanced lead-acid batteries developed by Exide for utility load-leveling applications have been conducted at Argonne National Laboratory's National Battery Test Laboratory since April 1982. These batteries (36-kWh and 18-kWh modules) have a projected life of greater than 4000 deep discharge cycles. This paper describes results obtained to date from the test program. Parametric test results and general performance observations for these batteries are reported.

Miller, J.F.; Corp, D.O.; Hayes, E.R.; Hornstra, F.; Yao, N.P.

1983-01-01T23:59:59.000Z

31

Testing and evaluation of advanced lead-acid batteries for utility load-leveling applications  

SciTech Connect (OSTI)

Testing and evaluation of advanced lead-acid batteries developed by Exide for utility load-leveling applications have been conducted at Argonne National Laboratory's National Battery Test Laboratory since April 1982. These batteries (36-kWh and 18-kWh modules) have a projected life of greater than 4000 deep discharge cycles. This paper describes results obtained to date from the test program. Parametric test results and general performance observations for these batteries are reported.

Miller, J.F.; Corp, D.O.; Hayes, E.R.; Hornstra, F.; Yao, N.P.

1983-08-01T23:59:59.000Z

32

Performance of advanced lead-acid batteries for load-leveling applications  

SciTech Connect (OSTI)

Testing and evaluation of advanced lead-acid batteries developed by Exide for load-leveling applications have been conducted at Argonne National Laboratory's National Battery Test Laboratory since April 1982. These batteries (36-kWh and 18-kWh modules) have a projected life of greater than 4000 deep-discharge cycles. This paper presents the results of performance and life tests obtained to date. Battery capacities and efficiencies are shown as a function of discharge rate. The status of ongoing accelerated life-cycle tests being conducted at 50/sup 0/C and 60/sup 0/C are presented.

Miller, J.F.; Gay, E.C.; Hornstra, G.F.; Yao, N.P.

1984-10-01T23:59:59.000Z

33

Evaluation of advanced lead-acid batteries developed for load-leveling applications  

SciTech Connect (OSTI)

Argonne National Laboratory has conducted an extensive evaluation of an advanced lead-acid battery developed by Exide Corporation for load-leveling applications. This paper presents the results of tests and analyses conducted on three 3100-Ah batteries over a five-year period. The Exide batteries demonstrated their high reliability and long life by completing over 2300 deep discharge cycles under accelerated life testing conditions at 50/sup 0/C, the equivalent of over 6400 cycles or 25 years of operation for the electric utility application. This paper also describes the thermal characteristics and operational reliability of this battery technology.

Miller, J.F.; Mulcahey, T.P.

1987-01-01T23:59:59.000Z

34

Performance of advanced lead-acid batteries for load-leveling applications  

SciTech Connect (OSTI)

Testing and evaluation of advanced lead-acid batteries developed by Exide for load-leveling applications have been conducted at Argonne National Laboratory's National Battery Test Laboratory since April 1982. These batteries (36-kWh and 18-kWh modules) have a projected life of greater than 4000 deep-discharge cycles. This paper presents the results of performance and life tests obtained to date. Battery capacities and efficiencies are shown as a function of discharge rate. The status of ongoing accelerated life-cycle tests being conducted at 50/sup 0/C and 60/sup 0/C are presented.

Miller, J.F.; Gay, E.C.; Hornstra, F.; Yao, N.P.

1984-01-01T23:59:59.000Z

35

Optical State-of-Change Monitor for Lead-Acid Batteries  

SciTech Connect (OSTI)

A method and apparatus for determining the instantaneous state-of-charge of a battery in which change in composition with discharge manifests itself as a change in optical absorption. In a lead-acid battery, the sensor comprises a fiber optic system with an absorption cdl or, alternatively, an optical fiber woven into an absorbed-glass-mat battery. In a lithium-ion battery, the sensor comprises fiber optics for introducing light into the anode to monitor absorption when lithium ions are introduced.

Weiss, Jonathan D.

1998-07-24T23:59:59.000Z

36

Research, development, and demonstration of lead-acid batteries for electric-vehicle propulsion. Annual report for 1982  

SciTech Connect (OSTI)

Research programs on lead-acid batteries are reported that cover active materials utilization, active material integrity, and some technical support projects. Processing problems were encountered and corrected. Components and materials, a lead-plastic composite grid, cell designs, and deliverables are described. Cell testing is discussed, as well as battery subsystems, including fuel gage, thermal management, and electrolyte circulation. (LEW)

Bowman, D.E.

1983-08-01T23:59:59.000Z

37

Analysis of lead-acid battery accelerated testing data. Final report  

SciTech Connect (OSTI)

Battelle conducted an independent review and analysis of the accelerated test procedures and test data obtained by Exide in the 3-year Phase I program to develop advanced lead-acid batteries for utility load leveling. Of special importance is the extensive data obtained in deep-discharge cycling tests on 60 cells at elevated temperatures over a 2-1/2 year period. The principal uncertainty in estimating cell life relates to projecting cycle life data at elevated temperature to the lower operating temperatures. The accelerated positive-grid corrosion test involving continuous overcharge at 50/sup 0/C provided some indication of the degree of grid corrosion that might be tolerable before failure. The accelerated positive-material shedding test was not examined in any detail. Recommendations are made for additional studies.

Clifford, J.E.; Thomas, R.E.

1983-08-01T23:59:59.000Z

38

Testing, data analysis and engineering services on lead-acid load leveling batteries  

SciTech Connect (OSTI)

As of December 31, 1983 eight 35-plate, advanced lead-acid, load-leveling cells have completed 1360 test cycles, two cycles per day. Discharging to a depth of 80% of the 5-h rated capacity (3100 Ah), their temperature remains at 39/sup 0/C +- 5/sup 0/. Capacity and energy output, measured by periodic 100%, depth-of-discharge, capacity-measuring cycles, has reached peak values for all cells. Also, deep-cycle accelerated tests at 70/sup 0/C +- 5/sup 0/ were completed on the 10 longest-lived 17-plate cells; cycle life to 80% initial 5-h rated energy output ranged from 1174 to 1468 actual cycles (equivalent to 5940 to 7455 cycles at 25/sup 0/C).

Sholette, W.P.

1984-04-01T23:59:59.000Z

39

Lead-acid load-leveling battery testing at Argonne National Laboratory  

SciTech Connect (OSTI)

Argonne National Laboratory (ANL) has conducted an extensive evaluation of an advanced lead-acid battery development for load-leveling applications. The battery technology was developed by the Exide Corporation under a DOE-sponsored cost-shared R and D contract with ANL during 1979-1982. The objective of that program was to increase battery life from 2000 to 4000 deep discharge cycles while maintaining or reducing initial battery cost. Full-size, 3100-Ah cells were fabricated by Exide and assembled into one 6-cell and two 3-cell batteries. These 36-kWh and 18-kWh batteries were delivered to ANL in April 1982 for testing and evaluation. Southern California Edison is currently installing a 10-MW, 40-MWh load-leveling facility comprised of batteries based on this design.

Miller, J.F.; Mulcahey, T.P.; Christianson, C.C.; Marr, J.J.; Smaga, J.A.

1987-01-01T23:59:59.000Z

40

Research, development, and demonstration of advanced lead-acid batteries for utility load leveling. Final report  

SciTech Connect (OSTI)

An advanced lead-acid storage battery has been developed to the preprototype cell and module design stage. Accelerated tests on full-size plates in 3, 5, and 17-plate cell sizes predict a cycle life goal of 4000 cycles at 80% depth-of-discharge can be achieved at 25/sup 0/C on a 2 cycle per day regime. One 6-cell 36 kwh and two 3-cell 18 kwh modules of cells in series were assembled and delivered to the ANL/NBTL for utility application and accelerated cycling tests. Each module is equipped with a low cost tray, automatic watering system, and air-lift pumps for increased acid circulation in each cell. Positive grid corrosion was measured in 5-plate cells at 50 to 55/sup 0/C during 166 kAh continuous overcharge to qualify a grid alloy. Up to 60% weight loss was observed on one test alloy. With the qualified alloy catastrophic positive grid corrosion will not limit cell cycle life. An accelerated shallow cycle regime at room ambient tested 60 cell designs for the active material shedding failure mode. An anti-shedding active material additive was found to reduce positive active material shedding significantly and extend the cycle life of both the positive and the negative plate. An accelerated 2-deep cycle per day test regime at 70/sup 0/C with 80% DoD and 24% overcharge selected 10 of 60 cell designs with a predicted cycle life greater than 5000 equivalent 25/sup 0/C cycles. Equations relating cell design to deep cycle life were developed from the factorial tests on the 60 cells. Eight 35-plate preprototype cells are cycling at EXIDE to prove the room ambient cycle life predicted by the accelerated test at 70/sup 0/C. Cell, module and battery prices are projected, based on the 6 kwh preprototype cell design.

Not Available

1983-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "lead acid model" 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

Measurement of stibine and arsine generation from the Exide 3100-Ah lead-acid module  

SciTech Connect (OSTI)

Stibine and arsine evolution from lead-acid cells in a 36-kWh Exide load-leveling module was measured as this module approached 1900 cycles of operation. A specially prepared gas-collection apparatus enabled us to determine the maximum and average rates for evolution of both toxic hydrides. Hydride generation began once the cell voltage exceeded 2.4 V. The maximum rate for arsine occurred just above 2.5 V and consistently preceded the peak rate for stibine for each sampled cell. When adjusted for size effects, the degree of stibine and arsine evolution was greater than found in a continuous overcharge study conducted by Exide. The average rates of hydride generation were found to be 175 ..mu..g/min for stibine and 12.6 ..mu..g/min for arsine. The former rate proved to be the critical value in determining safe ventilation requirements for cell off-gases. The minimum airflow requirement was calculated to be 340 L/min per cell. Projections for a hypothetical 1-MWh Exide battery without an abatement system indicated that the normal ventilation capacity in the Battery Energy Storage Test facility provides nearly five times the airflow needed for safe hydride removal.

Marr, J.J.; Smaga, J.A.

1987-01-01T23:59:59.000Z

42

Field Operations Program Chevrolet S-10 (Lead-Acid) Accelerated Reliability Testing - Final Report  

SciTech Connect (OSTI)

This report summarizes the Accelerated Reliability testing of five lead-acid battery-equipped Chevrolet S-10 electric vehicles by the US Department of Energy's Field Operations Program and the Program's testing partners, Electric Transportation Applications (ETA) and Southern California Edison (SCE). ETA and SCE operated the S-10s with the goal of placing 25,000 miles on each vehicle within 1 year, providing an accelerated life-cycle analysis. The testing was performed according to established and published test procedures. The S-10s' average ranges were highest during summer months; changes in ambient temperature from night to day and from season-to-season impacted range by as much as 10 miles. Drivers also noted that excessive use of power during acceleration also had a dramatic effect on vehicle range. The spirited performance of the S-10s created a great temptation to inexperienced electric vehicle drivers to ''have a good time'' and to fully utilize the S-10's acceleration capability. The price of injudicious use of power is greatly reduced range and a long-term reduction in battery life. The range using full-power accelerations followed by rapid deceleration in city driving has been 20 miles or less.

J. Francfort (INEEL); J. Argueta; M. Wehrey (Southern California Edison); D. Karner; L. Tyree (Electric Transportation Applications)

1999-07-01T23:59:59.000Z

43

E-Print Network 3.0 - acids lead salts Sample Search Results  

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

-Partial list Chemical Incompatibilities Summary: hypochlorite, all oxidizing agents Carbon tetrachloride Sodium Chlorates Ammonium salts, acids, powdered metals... ammonium...

44

E-Print Network 3.0 - advanced lead-acid batteries Sample Search...  

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

Virginia Tech Collection: Computer Technologies and Information Sciences 60 Aisle Marking Requirements permanent workplace aisles should have appropriate Summary: , lead...

45

Epidemiological-environemental study of lead acid battery workers. III. Chronic effects of sulfuric acid on the respiratory system and teeth  

SciTech Connect (OSTI)

The effects of long-term exposure to sulfuric acid mist on the teeth and respiratory system were studied in 248 workers in five plants manufacturing lead acid batteries. The prevalence of cough, phlegm, dyspnea, and wheezing as determined by questionnaire were not associated with estimates of cumulative acid exposure. There was only one case of irregular opacities seen on the chest radiographs. There was no statistically significant association of reduced FEV/sub 1/ peak flow, FEF/sub 50/, and FEF/sub 75/ with acid exposure although the higher exposed group had lower mean values. FVC in the high exposure group showed a statistically significant reductioon compared to the low exposure group but there was no significant association when exposure was analyzed as a continuous variable. The ratio of observed to expected prevalence of teeth etching and erosion was about four times greater in the high acid-exposure group. The earliest case of etching occured after 4 months exposure to an estimated average exposure of 0.23 mg/m/sup 3/ sulfuric acid.

Gamble, J.; Jones, W.; Hancock, J.; Meckstroth, R.L.

1984-10-01T23:59:59.000Z

46

MASTERS REPORT ANALYSIS AND MODELING OF ACID NEUTRALIZING CAPACITY  

E-Print Network [OSTI]

itself against acidification and is used to monitor the effect of acid rain on watersheds. From 1993MASTERS REPORT ANALYSIS AND MODELING OF ACID NEUTRALIZING CAPACITY IN THE MID-ATLANTIC HIGHLANDS UNIVERSITY #12;ABSTRACT Acid Neutralizing Capacity (ANC) is a measure of a solution's ability to buffer

47

Method of preparing a battery paste containing fibrous polyfluoroethylene for use in the plates of a lead-acid storage battery  

SciTech Connect (OSTI)

A method of preparing a battery paste for a lead-acid storage battery comprising: (A) mixing a water dispersion of polyfluoroethylene with lead material, (B) adding an aqueous solution of sulfuric acid to the lead material-dispersion mix and mixing to form a paste having fibrillation developed therein, (C) controlling the amount of fibrillation developed in the paste, and (D) controlling the paste density for use in a battery plate. The method provides an improved paste which permits substantial reduction in plate weights and density and loss of active material in the grid structure due to plate shedding over a conventional lead-acid paste. The saving in active material ranges from 10 to 30% over a conventional lead-acid paste without reduction in battery performance.

Duddy, J.C.; Malaspina, F.P.; Martini, W.J.

1982-02-16T23:59:59.000Z

48

Performance characteristics of an electric-vehicle lead-acid battery pack at elevated temperatures  

SciTech Connect (OSTI)

Data are presented for discharge testing of an 18-Exide IV electric car battery pack over initial electrolyte temperature variations between 27 and 55/sup 0/C. The tests were conducted under laboratory conditions and then compared to detailed electric vehicle simulation models. Results showed that battery discharge capacity increased with temperature for constant current discharges, and that battery energy capacity increased with temperature for constant power discharges. Dynamometer test of the GE Electric Test Vehicle showed an increase in range of 25% for the highest electrolyte temperature.

Chapman, P.

1982-04-01T23:59:59.000Z

49

Modeling Coulombic failure of sea ice with leads Alexander V. Wilchinsky1  

E-Print Network [OSTI]

Modeling Coulombic failure of sea ice with leads Alexander V. Wilchinsky1 and Daniel L. Feltham1 ice failure under lowconfinement compression is modeled with a linear Coulombic criterion that can of anisotropy we consider a simplified anisotropic sea ice model where the sea ice thickness depends

Feltham, Daniel

50

Understanding sensitization behavior of lead selenide photoconductive detectors by charge separation model  

SciTech Connect (OSTI)

We introduce a charge separation model in this work to explain the mechanism of enhanced photoconductivity of polycrystalline lead salt photoconductors. Our results show that this model could clarify the heuristic fabrication processes of such lead salt detectors that were not well understood and often considered mysterious for nearly a century. The improved lifetime and performance of the device, e.g., responsivity, are attributed to the spatial separation of holes and electrons, hence less possibility of carrier recombination. This model shows that in addition to crystal quality the size of crystallites, the depth of outer conversion layer, and doping concentration could all affect detector performance. The simulation results agree well with experimental results and thus offer a very useful tool for further improvement of lead salt detectors. The model was developed with lead salt family of photoconductors in mind, but may well be applicable to a wider class of semiconducting films.

Zhao, Lihua, E-mail: lihua.zhao@ou.edu, E-mail: shi@ou.edu; Qiu, Jijun; Weng, Binbin; Chang, Caleb; Yuan, Zijian; Shi, Zhisheng, E-mail: lihua.zhao@ou.edu, E-mail: shi@ou.edu [School of Electrical and Computer Engineering, University of Oklahoma, Norman, Oklahoma 73019 (United States)

2014-02-28T23:59:59.000Z

51

acid substitution model: Topics by E-print Network  

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

of 17.2 mM). 2002 Elsevier Science Ltd. All Schnaufer, Achim 64 Stabilization of Water-in-Oil Emulsions by Naphthenic Acids and Their Salts: Model Compounds, Role of pH, and...

52

Perfluorooctanoic acid rigidifies a model lipid membrane  

E-Print Network [OSTI]

We report a combined dynamic light scattering and neutron spin-echo (NSE) study on vesicles composed of the phospholipid 1,2-dimyristoyl-sn-glycero-3-phosphatidylcholine under the influence of varying amounts of perfluorooctanoic acid. We study local lipid bilayer undulations using NSE on time scales up to 200 ns. Similar to the effect evoked by cholesterol, we attribute the observed lipid bilayer stiffening to a condensing effect of the perfluorinated compound on the membrane.

Beate-Annette Bruening; Bela Farago

2014-05-05T23:59:59.000Z

53

Research, development, and demonstration of lead-acid batteries for electric-vehicle propulsion. Annual report, 1980  

SciTech Connect (OSTI)

The first development effort in improving lead-acid batteries fore electric vehicles was the improvement of electric vehicle batteries using flat pasted positive plates and the second was for a tubular long life positive plate. The investigation of 32 component variables based on a flat pasted positive plate configuration is described. The experiment tested 96 - six volt batteries for characterization at 0, 25, and 40/sup 0/C and for cycle life capability at the 3 hour discharge rate with a one cycle, to 80% DOD, per day regime. Four positive paste formulations were selected. Two commercially available microporous separators were used in conjunction with a layer of 0.076 mm thick glass mat. Two concentrations of battery grade sulfuric acid were included in the test to determine if an increase in concentration would improve the battery capacity sufficient to offset the added weight of the more concentrated solution. Two construction variations, 23 plate elements with outside negative plates and 23 plate elements with outside positive plates, were included. The second development effort was an experiment designed to study the relationship of 32 component variables based on a tubular positive plate configuration. 96-six volt batteries were tested at various discharge rates at 0, 25, and 40/sup 0/C along with cycle life testing at 80% DOD of the 3 hour rate. 75 batteries remain on cycle life testing with 17 batteries having in excess of 365 life cycles. Preliminary conclusions indicate: the tubular positive plate is far more capable of withstanding deep cycles than is the flat pasted plate; as presently designed 40 Whr/kg can not be achieved, since 37.7 Whr/kg was the best tubular data obtained; electrolyte circulation is impaired due to the tight element fit in the container; and a redesign is required to reduce the battery weight which will improve the Whr/kg value. This redesign is complete and new molds have been ordered.

Not Available

1981-03-01T23:59:59.000Z

54

Resveratrol Improves Survival, Hemodynamics and Energetics in a Rat Model of Hypertension Leading to  

E-Print Network [OSTI]

Resveratrol Improves Survival, Hemodynamics and Energetics in a Rat Model of Hypertension Leading and vascular function as well as cardiac and skeletal muscle energy metabolism were assessed in a hypertensive/kg/day; HS-RSV) was given for 8 weeks after hypertension and cardiac hypertrophy were established (which

Paris-Sud XI, Université de

55

Modeling and Optimization of Matrix Acidizing in Horizontal Wells in Carbonate Reservoirs  

E-Print Network [OSTI]

concentration, temperature and acid flux in the formation. The work concentrated on the investigation of the acid flux. Analytical equations for injection rate schedule for different wormhole models. In carbonate acidizing, the existence of the optimum...

Tran, Hau

2013-05-07T23:59:59.000Z

56

Modeling acid-gas generation from boiling chloride brines  

SciTech Connect (OSTI)

This study investigates the generation of HCl and other acid gases from boiling calcium chloride dominated waters at atmospheric pressure, primarily using numerical modeling. The main focus of this investigation relates to the long-term geologic disposal of nuclear waste at Yucca Mountain, Nevada, where pore waters around waste-emplacement tunnels are expected to undergo boiling and evaporative concentration as a result of the heat released by spent nuclear fuel. Processes that are modeled include boiling of highly concentrated solutions, gas transport, and gas condensation accompanied by the dissociation of acid gases, causing low-pH condensate. Simple calculations are first carried out to evaluate condensate pH as a function of HCl gas fugacity and condensed water fraction for a vapor equilibrated with saturated calcium chloride brine at 50-150 C and 1 bar. The distillation of a calcium-chloride-dominated brine is then simulated with a reactive transport model using a brine composition representative of partially evaporated calcium-rich pore waters at Yucca Mountain. Results show a significant increase in boiling temperature from evaporative concentration, as well as low pH in condensates, particularly for dynamic systems where partial condensation takes place, which result in enrichment of HCl in condensates. These results are in qualitative agreement with experimental data from other studies. The combination of reactive transport with multicomponent brine chemistry to study evaporation, boiling, and the potential for acid gas generation at the proposed Yucca Mountain repository is seen as an improvement relative to previously applied simpler batch evaporation models. This approach allows the evaluation of thermal, hydrological, and chemical (THC) processes in a coupled manner, and modeling of settings much more relevant to actual field conditions than the distillation experiment considered. The actual and modeled distillation experiments do not represent expected conditions in an emplacement drift, but nevertheless illustrate the potential for acid-gas generation at moderate temperatures (<150 C).

Zhang, Guoxiang; Spycher, Nicolas; Sonnenthal, Eric; Steefel, Carl

2009-11-16T23:59:59.000Z

57

Ecological Modelling 120 (1999) 157165 Neural network models to study relationships between lead  

E-Print Network [OSTI]

: Urban pollution; Heavy metal; Modelling; Backpropagation; Multiple regression; Sensitivity analysis www Modelling 120 (1999) 157­165158 In a city environment the main sources of Pb pollution are car exhausts, fumes and tyre wear, if there are no smelting sites, heavy industry or other sources of Pb contamination

Lek, Sovan

58

A Novel Model for Fracture Acidizing with Important Thermal Effects  

E-Print Network [OSTI]

A NOVEL MODEL FOR FRACTURE ACIDIZING WITH IMPORTANT THERMAL EFFECTS A Thesis by JOHN BRENDAN LYONS Submitted to the Office of Graduate and Professional Studies of Texas A&M University in partial fulfillment of the requirements for the degree... benefit to my research. I would like to acknowledge the Qatar National Research Fund, NPRP 09-828-2-316, for supporting this research. The facilities and resources provided by the Harold Vance Department of Petroleum Engineering of Texas A&M University...

Lyons, John

2013-12-05T23:59:59.000Z

59

SUBMARINE LEAD-ACID BATTERY PERFORMANCE To appear in the (refereed) proceedings of the Mathematics-in-Industry  

E-Print Network [OSTI]

-in-Industry Study Group, held at the University of South Australia, Adelaide, 3­7 Feb 2003. Mark McGuinness1 -- a detailed electrochemical kinetic model, a hydraulic analogue model, and a parametric model. The detailed electrochemical model is developed in one dimen- sion, resulting in coupled nonlinear convection-diffusion equa

McGuinness, Mark

60

Defining and Modeling Known Adverse Outcome Pathways: Domoic Acid and Neuronal Signaling as a Case Study  

SciTech Connect (OSTI)

An adverse outcome pathway (AOP) is a sequence of key events from a molecular-level initiating event and an ensuing cascade of steps to an adverse outcome with population level significance. To implement a predictive strategy for ecotoxicology, the multiscale nature of an AOP requires computational models to link salient processes (e.g., in chemical uptake, toxicokinetics, toxicodynamics, and population dynamics). A case study with domoic acid was used to demonstrate strategies and enable generic recommendations for developing computational models in an effort to move toward a toxicity testing paradigm focused on toxicity pathway perturbations applicable to ecological risk assessment. Domoic acid, an algal toxin with adverse effects on both wildlife and humans, is a potent agonist for kainate receptors (ionotropic glutamate receptors whose activation leads to the influx of Na+ and Ca2+). Increased Ca2+ concentrations result in neuronal excitotoxicity and cell death primarily in the hippocampus, which produces seizures, impairs learning and memory, and alters behavior in some species. Altered neuronal Ca2+ is a key process in domoic acid toxicity which can be evaluated in vitro. Further, results of these assays would be amenable to mechanistic modeling for identifying domoic acid concentrations and Ca2+ perturbations that are normal, adaptive, or clearly toxic. In vitro assays with outputs amenable to measurement in exposed populations can link in vitro to in vivo conditions, and toxicokinetic information will aid in linking in vitro results to the individual organism. Development of an AOP required an iterative process with three important outcomes: (1) a critically reviewed, stressor-specific AOP; (2) identification of key processes suitable for evaluation with in vitro assays; and (3) strategies for model development.

Watanabe, Karen H.; Andersen, Melvin E.; Basu, Nil; Carvan, Michael J.; Crofton, Kevin M.; King, Kerensa A.; Sunol, Cristina; Tiffany-Castiglioni, Evelyn; Schultz, Irvin R.

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lead acid model" 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

Ris-R-1515(EN) Lifetime Modelling of Lead Acid Batteries  

E-Print Network [OSTI]

Profile 18 3.2 Wind and PV test profiles for lifetime assessment 19 3.2.1 Renewable energy system profiles-01 Sponsorship: Cover : Pages: 82 Tables: 10 References: 18 Abstract: The performance and lifetime of energy storage in batteries are an important part of many renewable based energy systems. Not only do batteries

62

Stabilization of Water-in-Oil Emulsions by Naphthenic Acids and Their Salts: Model Compounds, Role of pH, and Soap : Acid Ratio#  

E-Print Network [OSTI]

Stabilization of Water-in-Oil Emulsions by Naphthenic Acids and Their Salts: Model Compounds, Role of high acidity are observed in production of petroleum reserves. Naphthenic acids, which are generally experimental results on naphthenic acid/ naphthenate stabilized emulsions utilizing several model compounds

Kilpatrick, Peter K.

63

Integration of the predictions of two models with dose measurements in a1 case study of children exposed to the emissions of a lead smelter2  

E-Print Network [OSTI]

exposed to the emissions of a lead smelter2 Abstract3 The predictions of two source-to-dose models lead smelter. Both5 models were built up from several sub-models linked together and run using Monte

Paris-Sud XI, Université de

64

MODELLING THE OVERLAND TRANSPORT OF LEAD DEPOSITED FROM THE ATMOSPHERE IN THE ELBE CATCHMENT OVER FOUR  

E-Print Network [OSTI]

unknown. Despite decreasing atmospheric pollution, soil and freshwater systems still indicate high lead on minimizing atmospheric emissions, but also on minimizing soil erosion. Keywords: atmospheric pollution, direct atmospheric deposition, direct runoff, Elbe catchment, erosion, soil pollution, lead, long

Costa-Cabral, Mariza

65

Corrosion Test of US Steels in Lead-Bismuth Eutectic (LBE) and Kinetic Modeling of Corrosion in LBE Systems  

E-Print Network [OSTI]

1 Corrosion Test of US Steels in Lead-Bismuth Eutectic (LBE) and Kinetic Modeling of Corrosion Federation Abstract We present the LBE corrosion test results of several US steels, and a preliminary analysis using a kinetic model for corrosion in LBE systems. Tube and rod specimens of austenitic steels

McDonald, Kirk

66

Mechanistic Study of the Acid Degradation of Lignin Model Compounds  

SciTech Connect (OSTI)

Lignin is a major constituent of biomass, which remains underutilized in selective biomass conversion strategies to renewable fuels and chemicals. Here we are interested in understanding the mechanisms related to the acid deconstruction of lignin with a combined theoretical and experimental approach. Two model dimers with a b-O-4 aryl ether linkage (2-phenoxy-1-phenethanol and 2-phenoxy-1-phenyl-1,3 propanediol) and model dimmers with an a-O-4 aryl ether linkage were synthesized and deconstructed in H2SO4. The major products of the acidolysis of the b-O-4 compounds consisted of phenol and two aldehydes, phenylacetaldehyde and benzaldehyde. Quantum mechanical calculations were employed to elucidate possible deconstruction mechanisms with transition state theory. To confirm proposed mechanisms several possible intermediates were studied under similar acidolysis conditions. Although the resonance time for cleavage was on the order several hours, we have shown that the cleavage of the aryl ether linkage affords phenol and aldehydes. We would next like to utilize our mechanism of aryl ether cleavage in actual lignin.

Sturgeon, M.; Kim, S.; Chmely, S. C.; Foust, T. D.; Beckham, G. T.

2012-01-01T23:59:59.000Z

67

Modeling Acid Transport and Non-Uniform Etching in a Stochastic Domain in Acid Fracturing  

E-Print Network [OSTI]

Success of acid fracturing depends on uneven etching along the fracture surfaces caused by heterogeneities such as variations in local mineralogy and variations in leakoff behavior. The heterogeneities tend to create channeling characteristics...

Mou, Jianye

2010-10-12T23:59:59.000Z

68

Development of an Integrated Micro-Analytical System for Lead in Saliva and Linkage to a Physiologically Based Pharmacokinetic Model Describing Lead Saliva Secretion  

SciTech Connect (OSTI)

There is a need to develop reliable portable analytical instruments for real-time monitoring of trace metals, such as lead (Pb) utilizing readily available non-invasive fluids like saliva. To interpret saliva results, an understanding of the pharmacokinetics of Pb secretion into the saliva is needed. A portable microfluidics/electrochemical device was developed for the rapid analysis of Pb based on square wave anodic stripping voltammetry, where a saliva sample flows over an electrode surface, Pb2+ is chemically reduced, accumulated, and the electric potential of the electrode scanned. To evaluate the relationship between saliva and blood Pb, rats were treated with single oral doses ranging from 20 to 500 mg Pb/kg of body weight, and 24 hours later salivation was induced by administering pilocarpine, a muscarinic agonist. Blood and saliva were collected and analyzed for Pb by inductively coupled plasma-mass spectrometry (ICP-MS) and by the micro-analytical system. The micro-analytical system was slightly less responsive ({approx}75-85%) than ICP-MS, however the response was linear over a concentration range of 1-2000 ppb suggesting that it can be utilized for the quantitation of salivary Pb. To relate saliva levels to internal dose of Pb (e.g. blood) and to total body burden, a physiologically based pharmacokinetic (PBPK) model for Pb was modified to incorporate a salivary gland compartment. The model was capable of predicting blood and saliva Pb concentration based on a limited data set. These preliminary results are encouraging and suggest that a fully developed, micro-analytical system can be utilized as an important tool for real-time biomonitoring of Pb for both occupational and environmental exposures.

Timchalk, Charles (BATTELLE (PACIFIC NW LAB)); Poet, Torka S. (BATTELLE (PACIFIC NW LAB)); Lin, Yuehe (BATTELLE (PACIFIC NW LAB)); Weitz, Karl K. (BATTELLE (PACIFIC NW LAB)); Zhao, Rui (ASSOC WESTERN UNIVERSITY); Thrall, Karla D. (BATTELLE (PACIFIC NW LAB))

2000-12-01T23:59:59.000Z

69

Global modeling of cancer gene expression signa-Cancer leads to permanent changes in cell's physiological state and various  

E-Print Network [OSTI]

Global modeling of cancer gene expression signa- tures Cancer leads to permanent changes in cell cancer types. Less is known about the underlying biological processes, or relationships between different cancer types with respect to these changes. While each specific cancer type has a set of unique

Kaski, Samuel

70

Eliciting a human understandable model of ice adhesion strength for rotor blade leading edge materials from uncertain experimental data  

E-Print Network [OSTI]

Eliciting a human understandable model of ice adhesion strength for rotor blade leading edge: Genetic Fuzzy Systems Fuzzy rule-based classifiers Vague data Isotropic materials Ice-phobic materials Shear adhesion strength a b s t r a c t The published ice adhesion performance data of novel ``ice

Granada, Universidad de

71

Understanding the function and performance of carbon-enhanced lead-acid batteries : milestone report for the DOE Energy Storage Systems program (FY11 Quarter 2: January through March 2011).  

SciTech Connect (OSTI)

This report describes the status of research being performed under CRADA No. SC10/01771.00 (Lead/Carbon Functionality in VRLA Batteries) between Sandia National Laboratories and East Penn Manufacturing, conducted for the U.S. Department of Energy's Energy Storage Systems Program. The Quarter 2 Milestone was completed on time. The milestone entails an ex situ analysis of the four carbons that have been added to the negative active material of valve-regulated lead-acid (VRLA) batteries for the purposes of this study. The four carbons selected for this study were a graphitic carbon, a carbon black, an activated carbon, and acetylene black. The morphology, crystallinity, and impurity contents of each of the four carbons were analyzed; results were consistent with previous data. Cycling on a subset of the received East Penn cells containing different carbons (and a control) has been initiated. Carbon has been explored as an addition to lead-acid battery electrodes in a number of ways. Perhaps the most notable to date has been the hybrid 'Ultrabattery' developed by CSIRO where an asymmetric carbon-based electrochemical capacitor is combined with a lead-acid battery into a single cell, dramatically improving high-rate partial-state-of-charge (HRPSoC) operation. As illustrated below, the 'Ultrabattery' is a hybrid device constructed using a traditional lead-acid battery positive plate (i.e., PbO{sub 2}) and a negative electrode consisting of a carbon electrode in parallel with a lead-acid negative plate. This device exhibits a dramatically improved cycle life over traditional VRLA batteries, as well as increased charge power and charge acceptance. The 'Ultrabattery' has been produced successfully by both The Furukawa Battery Co. and East Penn Manufacturing. An example illustrating the dramatic improvement in cycle life of the Ultrabattery over a conventional VRLA battery is shown.

Shane, R. (East Penn Manufacturing, Lyon Station, PA); Enos, David George; Hund, Thomas D.

2011-05-01T23:59:59.000Z

72

Understanding the function and performance of carbon-enhanced lead-acid batteries : milestone report for the DOE Energy Storage Systems program (FY11 Quarter 1: October through December 2010).  

SciTech Connect (OSTI)

This report describes the status of research being performed under CRADA No. SC10/01771.00 (Lead/Carbon Functionality in VRLA Batteries) between Sandia National Laboratories and East Penn Manufacturing, conducted for the U.S. Department of Energy's Energy Storage Systems Program. The Quarter 1 Milestone was completed on time. The milestone entails conducting a thorough literature review to establish the current level of understanding of the mechanisms through which carbon additions to the negative active material improve valve-regulated lead-acid (VRLA) batteries. Most studies have entailed phenomenological research observing that the carbon additions prevent/reduce sulfation of the negative electrode; however, no understanding is available to provide insight into why certain carbons are successful while others are not. Impurities were implicated in one recent review of the electrochemical behavior of carbon additions. Four carbon samples have been received from East Penn Manufacturing and impurity contents have been analyzed. Carbon has been explored as an addition to lead-acid battery electrodes in a number of ways. Perhaps the most notable to date has been the hybrid 'Ultrabattery' developed by CSIRO where an asymmetric carbon-based electrochemical capacitor is combined with a lead-acid battery into a single cell, dramatically improving high-rate partial-state-of-charge (HRPSoC) operation. As illustrated below, the 'Ultrabattery' is a hybrid device constructed using a traditional lead-acid battery positive plate (i.e., PbO{sub 2}) and a negative electrode consisting of a carbon electrode in parallel with a lead-acid negative plate. This device exhibits a dramatically improved cycle life over traditional VRLA batteries, as well as increased charge power and charge acceptance. The 'Ultrabattery' has been produced successfully by both The Furukawa Battery Co. and East Penn Manufacturing. An example illustrating the dramatic improvement in cycle life of the Ultrabattery over a conventional VRLA battery is shown in the graph.

Shane, R. (East Penn Manufacturing, Lyon Station, PA); Enos, David George; Hund, Thomas D.

2011-05-01T23:59:59.000Z

73

Modeled methanesulfonic acid (MSA) deposition in Antarctica and its relationship to sea ice  

E-Print Network [OSTI]

been investigated with the goal of producing a proxy for sea ice cover in past climates [SaigneModeled methanesulfonic acid (MSA) deposition in Antarctica and its relationship to sea ice P. J] Methanesulfonic acid (MSA) has previously been measured in ice cores in Antarctica as a proxy for sea ice extent

Holmes, Christopher D.

74

Modeling Elution Histories of Copper and Lead from Contaminated Soil Treated by Poly,,amidoamine... Dendrimers  

E-Print Network [OSTI]

procedures; Heavy metals; Soil pollution; Soil treatment. In recent years, extraction of heavy metals from transport models do not simulate the dynamic leaching process of heavy metals desorbed by the water soluble soil treated by poly amidoamine dendrimers. In the model, the metal sorption sites of the soil were

Clement, Prabhakar

75

Malthusian assumptions lead to Boserupian phenology in a global model of the transitions to agriculture  

E-Print Network [OSTI]

In the many transitions from foraging to agropastoralism it is debated whether innovation in technology or increase of population is the primary driver. The driver discussion traditionally separates Malthusian (technology driven) from Boserupian (population driven) theories. I present a numerical model of the transition to agriculture and discuss this model in the light of the population versus technology debate and in Boserup's analytical frame- work in development theory. Although my model is based on ecological-Neomalthusian- principles, the coevolutionary positive feedback relationship between technology and population results in apparent Boserupian behaviour: innovation is greatest when population pressure is highest. This outcome is not only visible in the theory-driven reduced model, but is also present in a corresponding "real world" simulator which was tested against archaeological data, and which thus demonstrates the relevance and validity of the coevolutionary model. The lesson to be learned is th...

Lemmen, Carsten

2011-01-01T23:59:59.000Z

76

The Expression of Gender in Synthetic Actors: Modeling and Motion Control Over Invariant Perceptual Cues Leading to Gender Recognition  

E-Print Network [OSTI]

MCLAUGHLIN Submitted to Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved as to style and content by: 7fa //Ik Louis G. Tassinary (Co-Chair of Committee) Tarek Alameldin (Member) Susan Van... Baerle (Co-Chair of Committee) ,^Vayne L. Shebilske (Member) Julius M. Gribou (Head of Department) May 1994 Ill ABSTRACT The Expression of Gender in Synthetic Actors: Modeling and Motion Control Over Invariant Perceptual Cues Leading to Gender...

McLaughlin, Timothy David

77

A Coarse-Grained Molecular Model for Glycosaminoglycans: Application to Chondroitin, Chondroitin Sulfate, and Hyaluronic Acid  

E-Print Network [OSTI]

A coarse-grained molecular model is presented for the study of the equilibrium conformation and titration behavior of chondroitin (CH), chondroitin sulfate (CS), and hyaluronic acid (HA)glycosaminoglycans (GAGs) that play ...

Bathe, Mark

78

Transverse-momentum dependent parton distribution functions beyond leading twist in quark models  

E-Print Network [OSTI]

Higher-twist transverse momentum dependent parton distribution functions (TMDs) are a valuable probe of the quark-gluon dynamics in the nucleon, and play a vital role for the explanation of sizable azimuthal asymmetries in hadron production from unpolarized and polarized deep-inelastic lepton-nucleon scattering observed in experiments at CERN, DESY and Jefferson Lab. The associated observables are challenging to interpret, and still await a complete theoretical explanation, which makes guidance from models valuable. In this work we establish the formalism to describe unpolarized higher-twist TMDs in the light-front framework based on a Fock-space expansion of the nucleon state in terms of free on-shell parton states. We derive general expressions and present numerical results in a practical realization of this picture provided by the light-front constituent quark model. We review several other popular quark model approaches including free quark ensemble, bag, spectator and chiral quark-soliton model. We discuss how higher-twist TMDs are described in these models, and obtain results for several TMDs not discussed previously in literature. This study contributes to the understanding of non-perturbative properties of subleading twist TMDs. The results from the light-front constituent quark model are also compared to available phenomenological information, showing a satisfactory agreement.

C. Lorc; B. Pasquini; P. Schweitzer

2015-02-03T23:59:59.000Z

79

A placement model for matrix acidizing of vertically extensive, multilayer gas reservoirs  

E-Print Network [OSTI]

A PLACEMENT MODEL FOR MATRIX ACIDIZING OF VERTICALLY EXTENSIVE, MULTILAYER GAS RESERVOIRS A Thesis by MANABU NOZAKI 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 August 2008 Major Subject: Petroleum Engineering A PLACEMENT MODEL FOR MATRIX ACIDIZING OF VERTICALLY EXTENSIVE, MULTILAYER GAS RESERVOIRS A Thesis by MANABU NOZAKI Submitted to the Office...

Nozaki, Manabu

2008-10-10T23:59:59.000Z

80

The determination of regionalised wind roses for the UK, for use with the HARM acid depositional model.  

E-Print Network [OSTI]

Metcalfe Dr. Claire Jarvis & Dr. Jim Nicholson #12;Abstract- The Hull acid rain (HARM) depositional model of Geography) is not permitted. #12;1 INTRODUCTION The Hull acid rain (HARM) Lagrangian receptor depositional, 2002, p1 & 6). Other acid rain models that use the Lagrangian receptor technique such as the original

Note: This page contains sample records for the topic "lead acid model" 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

ATOC/CHEM 5151 Fall 2014 The San Joaquin Valley, acid rain, and a simple "box" model  

E-Print Network [OSTI]

ATOC/CHEM 5151 ­ Fall 2014 Problem 26 The San Joaquin Valley, acid rain, and a simple "box" model. In this problem, use a simple box model to estimate the formation of so-called "acid fogs" in this valley. Assume the steady-state SO2 concentration (in units of molecules cm-3 ). (2) Sulfuric acid is produced from

Toohey, Darin W.

82

The K{sup }N?K? reaction in coupled channel chiral models up to next-to-leading order  

SciTech Connect (OSTI)

We study the meson-baryon interaction in S-wave in the strangeness S=?1 sector using a chiral unitary approach based on a next-to-leading order chiral SU(3) Lagrangian. We fit our model to the large set of experimental data in different two-body channels. We pay particular attention to the K{sup }N?K? reaction, where the effect of the next-to-leading order terms in the Lagrangian are sufficiently large to be observed, since at tree level the cross section of this reaction is zero. For these channels we improve our approach by phenomenologically taking into account effects of the high spin hyperonic resonances.

Magas, V. K.; Ramos, A. [Dept. d'Estructura i Constituents de la Matria, Universitat de Barcelona, Mart Franqus 1, E08028 Barcelona, Spain and Institut de Cincies del Cosmos, Universitat de Barcelona, Mart Franqus 1, E08028 Bar (Spain); Feijoo, A. [Dept. d'Estructura i Constituents de la Matria, Universitat de Barcelona, Mart Franqus 1, E08028 Barcelona (Spain)

2014-07-23T23:59:59.000Z

83

Developmental nephrotoxicity of aristolochic acid in a zebrafish model  

SciTech Connect (OSTI)

Aristolochic acid (AA) is a component of Aristolochia plant extracts which is used as a treatment for different pathologies and their toxicological effects have not been sufficiently studied. The aim of this study was to evaluate AA-induced nephrotoxicity in zebrafish embryos. After soaking zebrafish embryos in AA, the embryos displayed malformed kidney phenotypes, such as curved, cystic pronephric tubes, pronephric ducts, and cases of atrophic glomeruli. The percentages of embryos with malformed kidney phenotypes increased as the exposure dosages of AA increased. Furthermore, AA-treated embryos exhibited significantly reduced glomerular filtration rates (GFRs) in comparison with mock-control littermates (mock-control: 100 2.24% vs. 10 ppm AA treatment for 35 h: 71.48 18.84% ? 39.41 15.88%), indicating that AA treatment not only caused morphological kidney changes but also induced renal failure. In addition to kidney malformations, AA-treated zebrafish embryos also exhibited deformed hearts, swollen pericardiums, impaired blood circulation and the accumulation(s) of red blood cells. Whole-mount in situ hybridization studies using cmlc2 and wt1b as riboprobes indicated that the kidney is more sensitive than the heart to AA damage. Real-time PCR showed that AA can up-regulate the expression of proinflammatory genes like TNF?, cox2 and mpo. These results support the following conclusions: (1) AA-induced renal failure is mediated by inflammation, which causes circulation dysfunction followed by serious heart malformation; and (2) the kidney is more sensitive than the heart to AA injury. -- Highlights: ? Zebrafish were used to evaluate aristolochic acid (AA)-induced nephrotoxicity. ? AA-treated zebrafish embryos exhibited deformed heart as well as malformed kidney. ? Kidney is more sensitive to AA injury than the heart.

Ding, Yu-Ju; Chen, Yau-Hung, E-mail: yauhung@mail.tku.edu.tw

2012-05-15T23:59:59.000Z

84

A thermodynamic model of nitric acid extraction by tri-n-butyl phosphate  

SciTech Connect (OSTI)

A thermodynamic model is presented for nitric acid extraction by tri-n-butyl phosphate (TBP). This model is based on the formation of the organic phase species: TBP.HNO/sub 3/ and (TBP)/sub 2/.HNO/sub 3/. The model works successfully at TBP concentrations of 5 to 100 vol% and was found to be effective at predicting the extraction of HNO/sub 3/ from HNO/sub 3//NaNO/sub 3/ and HNO/sub 3//LiNO/sub 3/ solutions. Within the TBP concentration range of 5 to 30%, a single set of extraction constants was sufficient to fit extraction data. Stoichiometric activity coefficients of nitric acid in HNO/sub 3//NaNO/sub 3/ and HNO/sub 3//LiNO/sub 3/ mixtures were calculated using a model developed by Bromley.

Chaiko, D.J.; Vandegrift, G.F.

1988-07-01T23:59:59.000Z

85

Integration of the predictions of two models with dose measurements in a case study of children exposed to the emissions of a lead smelter  

SciTech Connect (OSTI)

The predictions of two source-to-dose models are systematically evaluated with observed data collected in a village polluted by a currently operating secondary lead smelter. Both models were built up from several sub-models linked together and run using Monte-Carlo simulation, to calculate the distribution children's blood lead levels attributable to the emissions from the facility. The first model system is composed of the CalTOX model linked to a recoded version of the IEUBK model. This system provides the distribution of the media-specific lead concentrations (air, soil, fruit, vegetables and blood) in the whole area investigated. The second model consists of a statistical model to estimate the lead deposition on the ground, a modified version of the model HHRAP and the same recoded version of the IEUBK model. This system provides an estimate of the concentration of exposure of specific individuals living in the study area. The predictions of the first model system were improved in terms of accuracy and precision by performing a sensitivity analysis and using field data to correct the default value provided for the leaf wet density. However, in this case study, the first model system tends to overestimate the exposure due to exposed vegetables. The second model was tested for nine children with contrasting exposure conditions. It managed to capture the blood levels for eight of them. In the last case, the exposure of the child by pathways not considered in the model may explain the failure of the model. The interest of this integrated model is to provide outputs with lower variance than the first model system, but at the moment further tests are necessary to conclude about its accuracy.

Bonnard, R.; McKone, T.E.

2009-03-01T23:59:59.000Z

86

Comparison of trichostatin A and valproic acid treatment regimens in a mouse model of kidney fibrosis  

SciTech Connect (OSTI)

Histone deacetylase (HDAC) inhibitors are promising new compounds for the therapy of fibrotic diseases. In this study we compared the effect of two HDAC inhibitors, trichostatin A and valproic acid, in an experimental model of kidney fibrosis. In mice, doxorubicin (adriamycin) can cause nephropathy characterized by chronic proteinuria, glomerular damage and interstitial inflammation and fibrosis, as seen in human focal segmental glomerulosclerosis. Two treatment regimens were applied, treatment was either started prior to the doxorubicin insult or delayed until a significant degree of proteinuria and fibrosis was present. Pre-treatment of trichostatin A significantly hampered glomerulosclerosis and tubulointerstitial fibrosis, as did the pre-treatment with valproic acid. In contrast, the development of proteinuria was only completely inhibited in the pre-treated valproic acid group, and not in the pre-treated trichostatin A animals. In the postponed treatment with valproic acid, a complete resolution of established doxorubicin-induced proteinuria was achieved within three days, whereas trichostatin A could not correct proteinuria in such a treatment regimen. However, both postponed regimens have comparable efficacy in maintaining the kidney fibrosis to the level reached at the start of the treatments. Moreover, not only the process of fibrosis, but also renal inflammation was attenuated by both HDAC inhibitors. Our data confirm a role for HDACs in renal fibrogenesis and point towards a therapeutic potential for HDAC inhibitors. The effect on renal disease progression and manifestation can however be different for individual HDAC inhibitors. - Highlights: Valproic acid is a potent antiproteinuric drug, whereas trichostatin A is not. Trichostatin A and valproic acid reduce kidney fibrosis in doxorubicin nephropathy. Both valproic acid and trichostatin A attenuate renal inflammation.

Van Beneden, Katrien, E-mail: kvbenede@vub.ac.be [Department of Human Anatomy, Liver Cell Biology Lab, Vrije Universiteit Brussel, Brussels (Belgium); Geers, Caroline [Department of Pathology, Universitair Ziekenhuis Brussel, Brussels (Belgium); Pauwels, Marina [Department of Human Anatomy, Liver Cell Biology Lab, Vrije Universiteit Brussel, Brussels (Belgium); Mannaerts, Inge [Department of Cell Biology, Liver Cell Biology Lab, Vrije Universiteit Brussel, Brussels (Belgium); Wissing, Karl M. [Department of Nephrology, Universitair Ziekenhuis Brussel, Brussels (Belgium); Van den Branden, Christiane [Department of Human Anatomy, Liver Cell Biology Lab, Vrije Universiteit Brussel, Brussels (Belgium); Grunsven, Leo A. van, E-mail: lvgrunsv@vub.ac.be [Department of Cell Biology, Liver Cell Biology Lab, Vrije Universiteit Brussel, Brussels (Belgium)

2013-09-01T23:59:59.000Z

87

A 1:1000 scale model of the digital world: Global connectivity can lead to the extinction of local networks  

E-Print Network [OSTI]

The overwhelming success of online social networks, the key actors in the cosmos of the Web 2.0, has reshaped human interactions on a worldwide scale. To understand the fundamental mechanisms which determine the fate of online social networks at the system level, we recently introduced a general ecological theory of the digital world. In this paper, we discuss the impact of heterogeneity in the network intrinsic fitness and present how the general theory can be applied to understand the competition between an international network, like Facebook, and local services. To this end, we construct a 1:1000 scale model of the digital world enclosing the 80 countries with most Internet users. We find that above a certain threshold the level of global connectivity can lead to the extinction of local networks. In addition, we reveal the complex role the tendency of individuals to engage in more active networks plays for the probability of local networks to become extinct and provide insights into the conditions under w...

Kleineberg, Kaj-Kolja

2015-01-01T23:59:59.000Z

88

Investigating fatty acid biosynthesis within the algal chloroplast using Chlamydomonas reinhardtii as a model  

E-Print Network [OSTI]

acid biosynthesis in microalgae for sustainable biodiesel. (acid biosynthesis in microalgae for biofuel through protein-acid biosynthesis in microalgae through protein-protein

Blatti, Jillian L.

2012-01-01T23:59:59.000Z

89

Improved Multivariate Calibration Models for Corn Stover Feedstock and Dilute-Acid Pretreated Corn Stover  

SciTech Connect (OSTI)

We have studied rapid calibration models to predict the composition of a variety of biomass feedstocks by correlating near-infrared (NIR) spectroscopic data to compositional data produced using traditional wet chemical analysis techniques. The rapid calibration models are developed using multivariate statistical analysis of the spectroscopic and wet chemical data. This work discusses the latest versions of the NIR calibration models for corn stover feedstock and dilute-acid pretreated corn stover. Measures of the calibration precision and uncertainty are presented. No statistically significant differences (p = 0.05) are seen between NIR calibration models built using different mathematical pretreatments. Finally, two common algorithms for building NIR calibration models are compared; no statistically significant differences (p = 0.05) are seen for the major constituents glucan, xylan, and lignin, but the algorithms did produce different predictions for total extractives. A single calibration model combining the corn stover feedstock and dilute-acid pretreated corn stover samples gave less satisfactory predictions than the separate models.

Wolfrum, E. J.; Sluiter, A. D.

2009-01-01T23:59:59.000Z

90

ELLIPSOMETRY OF SURFACE LAYERS ON LEAD AND LITHIUM  

E-Print Network [OSTI]

Surface Layers on Lead and Lithium By Richard Dudley Peterssulfuric acid and and lithium to water, Acid concentrationsbeen observed in the reaction of lithium with water vapor. i

Peters, Richard Dudley

2011-01-01T23:59:59.000Z

91

Investigating fatty acid biosynthesis within the algal chloroplast using Chlamydomonas reinhardtii as a model  

E-Print Network [OSTI]

0 fatty acids in transgenic canola by overexpression of Ch0 fatty acids in transgenic canola by overexpression of Ch

Blatti, Jillian L.

2012-01-01T23:59:59.000Z

92

Understanding the function and performance of carbon-enhanced lead-acid batteries : milestone report for the DOE Energy Storage Systems Program (FY11 Quarter 4: July through September 2011).  

SciTech Connect (OSTI)

This report describes the status of research being performed under CRADA No. SC10/01771.00 (Lead/Carbon Functionality in VRLA Batteries) between Sandia National Laboratories and East Penn Manufacturing, conducted for the U.S. Department of Energy's Energy Storage Systems Program. The Quarter 4 Milestone was completed on time. The milestone entails the initiation of high rate, partial state of charge (HRPSoC) cycling of the carbon enhanced batteries. The morphology, porosity, and porosity distribution within the plates after 1k and 10k cycles were documented, illustrating the changes which take place in the early life of the carbon containing batteries, and as the battery approaches failure due to hard sulfation for the control battery. Longer term cycling on a subset of the received East Penn cells containing different carbons (and a control) continues, and will progress into FY12. Carbon has been explored as an addition to lead-acid battery electrodes in a number of ways. Perhaps the most notable to date has been the hybrid 'Ultrabattery' developed by CSIRO where an asymmetric carbon-based electrochemical capacitor is combined with a lead-acid battery into a single cell, dramatically improving high-rate partial-state-of-charge (HRPSoC) operation. As illustrated below, the 'Ultrabattery' is a hybrid device constructed using a traditional lead-acid battery positive plate (i.e., PbO2) and a negative electrode consisting of a carbon electrode in parallel with a lead-acid negative plate. This device exhibits a dramatically improved cycle life over traditional VRLA batteries, as well as increased charge power and charge acceptance. The 'Ultrabattery' has been produced successfully by both The Furukawa Battery Co. and East Penn Manufacturing. An example illustrating the dramatic improvement in cycle life of the Ultrabattery over a conventional VRLA battery is shown in a graph. In addition to the aforementioned hybrid device, carbon has also been added directly to traditional VRLA batteries as an admixture in both the positive and negative plates, the latter of which has been found to result in similar improvements to battery performance under high-rate partial-state-of-charge (HRPSoC) operation. It is this latter construction, where carbon is added directly to the negative active material (NAM) that is the specific incarnation being evaluated through this program. Thus, the carbon-modified (or Pb-C) battery (termed the 'Advanced' VRLA battery by East Penn Manufacturing) is a traditional VRLA battery where an additional component has been added to the negative electrode during production of the negative plate. The addition of select carbon materials to the NAM of VRLA batteries has been demonstrated to increase cycle life by an order of magnitude or more under (HRPSoC) operation. Additionally, battery capacity increases on cycling and, in fact, exceeds the performance of the batteries when new.

Ferreira, Summer Rhodes; Shane, Rodney (East Penn Manufacturing, Lyon Station, PA); Enos, David George

2011-10-01T23:59:59.000Z

93

Computational Mechanistic Studies of Acid-Catalyzed Lignin Model Dimers for Lignin Depolymerization  

SciTech Connect (OSTI)

Lignin is a heterogeneous alkyl-aromatic polymer that constitutes up to 30% of plant cell walls, and is used for water transport, structure, and defense. The highly irregular and heterogeneous structure of lignin presents a major obstacle in the development of strategies for its deconstruction and upgrading. Here we present mechanistic studies of the acid-catalyzed cleavage of lignin aryl-ether linkages, combining both experimental studies and quantum chemical calculations. Quantum mechanical calculations provide a detailed interpretation of reaction mechanisms including possible intermediates and transition states. Solvent effects on the hydrolysis reactions were incorporated through the use of a conductor-like polarizable continuum model (CPCM) and with cluster models including explicit water molecules in the first solvation shell. Reaction pathways were computed for four lignin model dimers including 2-phenoxy-phenylethanol (PPE), 1-(para-hydroxyphenyl)-2-phenoxy-ethanol (HPPE), 2-phenoxy-phenyl-1,3-propanediol (PPPD), and 1-(para-hydroxyphenyl)-2-phenoxy-1,3-propanediol (HPPPD). Lignin model dimers with a para-hydroxyphenyl ether (HPPE and HPPPD) show substantial differences in reactivity relative to the phenyl ether compound (PPE and PPPD) which have been clarified theoretically and experimentally. The significance of these results for acid deconstruction of lignin in plant cell walls will be discussed.

Kim, S.; Sturgeon, M. R.; Chmely, S. C.; Paton, R. S.; Beckham, G. T.

2013-01-01T23:59:59.000Z

94

A novel mechanism and kinetic model to explain enhanced xylose yields from dilute sulfuric acid compared to hydrothermal pretreatment of corn stover  

E-Print Network [OSTI]

A novel mechanism and kinetic model to explain enhanced xylose yields from dilute sulfuric acid stover Dilute sulfuric acid Hydrothermal pretreatment Kinetic model Xylose a b s t r a c t Pretreatment of corn stover in 0.5% sulfuric acid at 160 °C for 40 min realized a maximum monomeric plus oligomeric

California at Riverside, University of

95

Modeling of the simultaneous extraction of nitric acid and uranyl nitrate with tri-n-butyl phosphate. Application to extraction operation  

SciTech Connect (OSTI)

A mathematical model developed for the equilibrium HNO{sub 3}-UO{sub 2}(NO{sub 3}){sub 2}-tri-n-butyl phosphate (TBP)-diluent is the basis of the computation of distribution isotherms. The isotherms are used to study the influence of TBP concentration on two chosen operation parameters, distribution coefficients and number of theoretical stages, for the selected flow sheets. It is established that an increase in TBP concentration leads to a decrease in the number of theoretical stages for the extraction flow sheets but to their increase for the striping flow sheets. Given diagrams can be used to determine the efficiency of extraction processes. Agreement with available literature calculations on the number of theoretical stages supports the use of the model in the computation of distribution isotherms, of the system quoted above, in a wide range of nitric acid, uranyl nitrate, and TBP concentrations.

Comor, J.J.; Tolic, A.S.; Kopecni, M.M.; Petkovic, D.M. [Vinca Inst. of Nuclear Sciences, Belgrade (Yugoslavia). Chemical Dynamics Lab.] [Vinca Inst. of Nuclear Sciences, Belgrade (Yugoslavia). Chemical Dynamics Lab.

1999-01-01T23:59:59.000Z

96

A model of vapor-liquid equilibria for acid gas-alkanolamine-water systems  

SciTech Connect (OSTI)

A physico-chemical model was developed for representing liquid phase chemical equilibria and vapor-liquid (phase) equilibria of H{sub 2}SCO{sub 2}-alkanolamine-water systems. The equilibrium composition of the liquid phase is determined by minimization of the Gibbs free energy. Activity coefficients are represented with the Electrolyte-NRTL equation treating both long-range electrostatic interactions and short-range binary interactions between liquid phase species. Vapor phase fugacity coefficients are calculated using the Redlich-Kwong-Soave Equation of State. Adjustable parameters of the model, binary interaction parameters and carbamate stability constants, were fitted on published binary system alkanolamine-water and ternary system (H{sub 2}S-alkanolamine-water, CO{sub 2}-alkanolamine-water) VLE data. The Data Regression System of ASPEN PLUS, based upon the Maximum Likelihood Principle, was used to estimate adjustable parameters. Ternary system measurements used in parameter estimation ranged in temperature from 25 to 120{degree}C in alkanolamine concentration from 1 to 5 M, in acid gas loading from 0 to 1.5 moles per mole alkanolamine, and in acid gas partial pressure from 0.1 to 1,000 kPa. Maximum likelihood estimates of ternary system H{sub 2} or CO{sub 2} equilibrium partial pressures and liquid phase concentrations were found to be in good agreement with measurements for aqueous solutions of monoethanolamine (MEA), diethanolamine (DEA), diglycolamine (DGA), and methyldiethanolamine (MDEA) indicating that the model successfully represents ternary system data. The model was extended to represent CO{sub 2} solubility in aqueous mixtures of MDEA with MEA or DEA. The solubility was measured at 40 and 80{degree}C over a wide range of CO{sub 2} partial pressures. These measurements were used to estimate additional binary parameters of the mixed solvent systems.

Austgen, D.M. Jr.

1989-01-01T23:59:59.000Z

97

Modeling of the formation of short-chain acids in propane flames F. Battin-Leclerc , 1  

E-Print Network [OSTI]

Modeling of the formation of short-chain acids in propane flames F. Battin-Leclerc , 1 , A. Simulations of lean (equivalence ratios from 0.9 to 0.48) laminar premixed flames of propane stabilized in a combustion apparatus which can easily be modeled, a laminar premixed flame of propane at atmospheric pressure

Paris-Sud XI, Université de

98

Integration of the predictions of two models with dose measurements in a case study of children exposed to the emissions of a lead smelter  

E-Print Network [OSTI]

methodology to a lead smelter site, Human and Ecologicala case study of the RSR lead smelter Superfund site. Journaldust, and proximity to lead smelters. Pediatrics Luo Y, Yang

Bonnard, R.

2010-01-01T23:59:59.000Z

99

Electrochemical behavior of lead telluride  

SciTech Connect (OSTI)

The electrochemical behavior of lead telluride was studied in acidic, neutral, and alkaline solutions. It was shown that in the case of anodic polarization in 1 M NaOH the PbTe surface composition is nearly stoichiometric. During cathodic polarization in 1 M NaOH and during anodic polarization in 1 M HCl the surface layer is lead-rich. In the case of anodic polarization in 1 M HCl the surface is tellurium-rich. Cathodic polarization in 1 M NaCl leads to tellurium depletion of the surface layer. Reaction equations describing the electrochemical processes at the PbTe electrode are reported.

Danilova, M.G.; Sveshnikova, L.L.; Repinskii, S.M.

1987-07-01T23:59:59.000Z

100

Modeling and simulation of blast-induced, early-time intracranial wave physics leading to traumatic brain injury.  

SciTech Connect (OSTI)

The objective of this modeling and simulation study was to establish the role of stress wave interactions in the genesis of traumatic brain injury (TBI) from exposure to explosive blast. A high resolution (1 mm{sup 3} voxels), 5 material model of the human head was created by segmentation of color cryosections from the Visible Human Female dataset. Tissue material properties were assigned from literature values. The model was inserted into the shock physics wave code, CTH, and subjected to a simulated blast wave of 1.3 MPa (13 bars) peak pressure from anterior, posterior and lateral directions. Three dimensional plots of maximum pressure, volumetric tension, and deviatoric (shear) stress demonstrated significant differences related to the incident blast geometry. In particular, the calculations revealed focal brain regions of elevated pressure and deviatoric (shear) stress within the first 2 milliseconds of blast exposure. Calculated maximum levels of 15 KPa deviatoric, 3.3 MPa pressure, and 0.8 MPa volumetric tension were observed before the onset of significant head accelerations. Over a 2 msec time course, the head model moved only 1 mm in response to the blast loading. Doubling the blast strength changed the resulting intracranial stress magnitudes but not their distribution. We conclude that stress localization, due to early time wave interactions, may contribute to the development of multifocal axonal injury underlying TBI. We propose that a contribution to traumatic brain injury from blast exposure, and most likely blunt impact, can occur on a time scale shorter than previous model predictions and before the onset of linear or rotational accelerations traditionally associated with the development of TBI.

Ford, Corey C. (University of New Mexico, Albuquerque, NM); Taylor, Paul Allen

2008-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "lead acid model" 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

E-Print Network 3.0 - acid model compounds Sample Search Results  

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

condensation nucleus activity of organic acids Z. Varga1 , G. Kiss2 , and H... point. The surface tension of organic acid solutions is10 influenced by the ... Source: Ecole...

102

Three-dimensional Modeling of Acid Transport and Etching in a Fracture  

E-Print Network [OSTI]

Acid fracture stimulation generates higher well production but requires engineering design for treatment optimization. To quantify the cost and benefit of a particular acid fracture treatment an engineer must predict the resulting fracture...

Oeth, Cassandra V

2013-11-25T23:59:59.000Z

103

An Improved Model for Sandstone Acidizing and Study of the Effect of Mineralogy and Temperature on Sandstone Acidizing Treatments and Simulation  

E-Print Network [OSTI]

Sandstone acidizing is a complex operation because the acidizing fluid reacts with a variety of minerals present in the formation that results in a wide range of reaction products. The hydrofluoric acid (HF) reaction rate differs widely from mineral...

Agarwal, Amit Kumar

2013-01-14T23:59:59.000Z

104

Rigorous modeling of the acid gas heat of absorption in alkanolamine solutions  

SciTech Connect (OSTI)

In this work, we are interested in the estimation of CO{sub 2} and H{sub 2}S heats of absorption in aqueous solutions of alkanolamine: monoethanolamine (MEA), diethanolamine (DEA), and methyldiethanolamine (MDEA). Two methods can be used to calculate the heat release during the absorption phenomenon. The easier which consists of applying the integration of the Gibbs-Helmholtz expression remains inaccurate. The second one, more rigorous, evaluates the heat transfer through an internal energy balance for an open system. The balance expression contains partial molar enthalpies of species in the liquid phase which are calculated from the electrolyte nonrandom-two-liquid (NRTL) excess Gibbs energy model. The calculations carried out in this method can be considered as predictive regarding the NRTL model because its interaction parameters were previously and solely fitted on vapor-liquid equilibrium (VLE) data and not on experimental heat of absorption data. The comparison between both methods and experimental data for the three alkanolamines shows the contribution of this rigorous calculation to better estimate both properties (i.e., solubility and heat) and its usefulness to improve processes. Heats of absorption calculated with the second method can be used in addition to VLE data to fit NRTL parameters. This procedure leads to less-correlated parameters and allows extrapolating the model with more confidence. 63 refs., 10 figs., 6 tabs.

Emilie Blanchon le Bouhelec; Pascal Mougin; Alain Barreau; Roland Solimando [Institut Francais du Petrole, Rueil-Malmaison (France). Departement Thermodynamique et Modelisation Moleculaire

2007-08-15T23:59:59.000Z

105

The influence of naturally-occurring organic acids on model estimates of lakewater acidification using the model of acidification of groundwater in catchments (MAGIC)  

SciTech Connect (OSTI)

A project for the US Department of Energy, entitled Incorporation of an organic acid representation into MAGIC (Model of Acidification of Groundwater in Catchments) and Testing of the Revised Model UsingIndependent Data Sources'' was initiated by E S Environmental Chemistry, Inc. in March, 1992. Major components of the project include: improving the MAGIC model by incorporating a rigorous organic acid representation, based on empirical data and geochemical considerations, and testing the revised model using data from paleolimnological hindcasts of preindustrial chemistry for 33 Adirondack Mountain lakes, and the results of whole-catchment artificial acidification projects in Maine and Norway. The ongoing research in this project involves development of an organic acid representation to be incorporated into the MAGIC modeland testing of the improved model using three independent data sources. The research during Year 1 has included conducting two workshops to agree on an approach for the organic acid modeling, developing the organic subroutine and incorporating it into MAGIC (Task 1), conducing MAGIC hindcasts for Adirondack lakes and comparing the results with paleolimnological reconstructions (Task 2), and conducting site visits to the manipulation project sites in Maine and Norway. The purpose of this report is to provide a summary of the work that has been conducted on this project during Year 1. Tasks 1 and 2 have now been completed.

Sullivan, T.J.; Eilers, J.M. (E and S Environmental Chemistry, Inc., Corvallis, OR (United States)); Cosby, B.J. (Virginia Univ., Charlottesville, VA (United States). Dept. of Environmental Sciences); Driscoll, C.T. (Syracuse Univ., NY (United States). Dept. of Civil Engineering); Hemond, H.F. (Massachusetts Inst. of Tech., Cambridge, MA (United States). Dept. of Civil Engineering); Charles, D.F.

1993-03-05T23:59:59.000Z

106

MODELING OF LIQUID WATER ON CM PARENT BODIES AND IMPLICATIONS FOR AMINO ACID RACEMIZATION. B. A. Cohen  

E-Print Network [OSTI]

the most recent tem- perature-dependent expressions for thermal conductiv- ity, heat capacity, densityMODELING OF LIQUID WATER ON CM PARENT BODIES AND IMPLICATIONS FOR AMINO ACID RACEMIZATION. B. A and duration of a liquid water phase [1]. The characteris- tics of the liquid water phase are critical

Cohen, Barbara Anne

107

Soluble Lead Flow Battery: Soluble Lead Flow Battery Technology  

SciTech Connect (OSTI)

GRIDS Project: General Atomics is developing a flow battery technology based on chemistry similar to that used in the traditional lead-acid battery found in nearly every car on the road today. Flow batteries store energy in chemicals that are held in tanks outside the battery. When the energy is needed, the chemicals are pumped through the battery. Using the same basic chemistry as a traditional battery but storing its energy outside of the cell allows for the use of very low cost materials. The goal is to develop a system that is far more durable than todays lead-acid batteries, can be scaled to deliver megawatts of power, and which lowers the cost of energy storage below $100 per kilowatt hour.

None

2010-09-01T23:59:59.000Z

108

Investigating fatty acid biosynthesis within the algal chloroplast using Chlamydomonas reinhardtii as a model  

E-Print Network [OSTI]

offering a continuous algal production-secretion system thatalgal lipids [124]. As such, there are many research groups interested in engineering fatty acid production and secretion

Blatti, Jillian L.

2012-01-01T23:59:59.000Z

109

Modeling of the formation of short-chain acids in propane flames  

E-Print Network [OSTI]

In order to better understand their potential formation in combustion systems, a detailed kinetic mechanism for the formation of short-chain monocarboxylic acids, formic (HCOOH), acetic (CH3COOH), propionic (C2H5COOH) and propenic (C2H3COOH)) acids, has been developed. Simulations of lean (equivalence ratios from 0.9 to 0.48) laminar premixed flames of propane stabilized at atmospheric pressure with nitrogen as diluent have been performed. It was found that amounts up to 25 ppm of acetic acid, 15 ppm of formic acid and 1 ppm of C3 acid can be formed for some positions in the flames. Simulations showed that the more abundant C3 acid formed is propenic acid. A quite acceptable agreement has been obtained with the scarce results from the literature concerning oxygenated compounds, including aldehydes (CH2O, CH3CHO) and acids. A reaction pathways analysis demonstrated that each acid is mainly derived from the aldehyde of similar structure.

Battin-Leclerc, Frdrique; Jaffrezo, J L; Legrand, M

2009-01-01T23:59:59.000Z

110

Modeling of Water-rock interaction in the Mackenzie Basin: competition between sulfuric and carbonic acids  

E-Print Network [OSTI]

sulfuric and carbonic acids E. Beaulieu, Y. Godd´eris, D. Labat, C. Roelandt, D. Calmels, J. Gail- lardet of the resulting proof before it is published in its final form. Please note that during the production process in the Mackenzie Basin: competition between sulfuric and carbonic acids. E. Beaulieu1 , Y. Goddéris1 , D. Labat1

111

Investigating fatty acid biosynthesis within the algal chloroplast using Chlamydomonas reinhardtii as a model  

E-Print Network [OSTI]

biomass feedstocks and yields of biomass feedstocks a) Amount of land requiredOil yields of leading biomass feedstocks. (Adapted from the

Blatti, Jillian L.

2012-01-01T23:59:59.000Z

112

International Journal of Pharmaceutics 307 (2006) 225231 Interactions of oleic acid and model stratum  

E-Print Network [OSTI]

deuterium nuclear magnetic resonance to monitor such multilamellar SC dispersions containing either, is not clear. Some have speculated that cis-unsaturated fatty acids such as OA `fluidize' SC lipids

Rowat, Amy C.

2006-01-01T23:59:59.000Z

113

Drinking Water Problems: Lead  

E-Print Network [OSTI]

Lead in drinking water can damage the brain, kidneys, nervous system and red blood cells. This publication explains how lead can enter drinking water, how to have your water tested, and how to eliminate lead from drinking water....

Dozier, Monty; McFarland, Mark L.

2004-02-20T23:59:59.000Z

114

Carrier-mediated transport of monocarboxylic acids in BeWo cell monolayers as a model of the human trophoblast  

E-Print Network [OSTI]

The monolayer-forming, human choriocarcinoma cell line, BeWo, was used to study the mechanisms of monocarboxylic acid transport across the human trophoblast. Benzoic acid, acetic acid, and lactic acid were used as markers ...

Utoguchi, Naoki; Magnusson, Malin; Audus, Kenneth L.

1999-01-01T23:59:59.000Z

115

An investigation of vitamin B-6 catalyzed reactions of some aminophosphonic acids in model systems  

E-Print Network [OSTI]

of the carbonyl grovp of a keto acid with the primary amine of pyridoxamine. The metal functions by coordinating to the imine to form a terdentate Schiff base chelate. Figure 1 illvstrates the formation of an aldimine chelate from pyridoxal, amino acid... CH3 I+ H H I + R ? C ? COO + M I NH p+ VI H 4 / b iver C p R j C~C -' l'-~p H& ~N Mno C ! HO +C H ~ l+ H Figvre 1: Formation of an Aldimine Chelate three positions in the basal plane occupied by the aldimine ligand, a fourth basal...

Langohr, Michael Frederick

1975-01-01T23:59:59.000Z

116

Local Dosing in a 3-Mercaptopropionic Acid Chemically-Induced Epileptic Seizure Model with Microdialysis Sampling  

E-Print Network [OSTI]

, the main inhibitory amino acid, was seen. In addition, an increase in both dopamine and norepinephrine was seen. A multiple dosing regimen of 3-MPA was developed where 3-MPA was administered twice. These results showed that there was an attenuation...

Mayer, Andrew Philip

2010-12-31T23:59:59.000Z

117

Use of a 3D liver microreactor as an in vitro model for the study of bile acid synthesis and hepatobiliary circulation  

E-Print Network [OSTI]

The liver regulates a myriad of vital functions including bile acid synthesis, hepatobiliary circulation, cholesterol homeostasis, drug metabolism, etc. This thesis focuses on the use of a 3D in vitro model of liver to ...

Llamas Vidales, Jose Ricardo

2009-01-01T23:59:59.000Z

118

Oxidation kinetics of methylphosphonic acid in supercritical water : experimental measurements and model development  

E-Print Network [OSTI]

(cont.) at well-defined operating conditions and to develop. both microscopic and macroscopic models, ranging from regressed global models to an elementary reaction mechanism, to quantify MPA oxidation kinetics in supercritical ...

Sullivan, Patricia A. (Patricia Ann), 1978-

2004-01-01T23:59:59.000Z

119

Conceptual Model of Uranium in the Vadose Zone for Acidic and Alkaline Wastes Discharged at the Hanford Site Central Plateau  

SciTech Connect (OSTI)

Historically, uranium was disposed in waste solutions of varying waste chemistry at the Hanford Site Central Plateau. The character of how uranium was distributed in the vadose zone during disposal, how it has continued to migrate through the vadose zone, and the magnitude of potential impacts on groundwater are strongly influenced by geochemical reactions in the vadose zone. These geochemical reactions can be significantly influenced by the disposed-waste chemistry near the disposal location. This report provides conceptual models and supporting information to describe uranium fate and transport in the vadose zone for both acidic and alkaline wastes discharged at a substantial number of waste sites in the Hanford Site Central Plateau. The conceptual models include consideration of how co-disposed acidic or alkaline fluids influence uranium mobility in terms of induced dissolution/precipitation reactions and changes in uranium sorption with a focus on the conditions near the disposal site. This information, when combined with the extensive information describing uranium fate and transport at near background pH conditions, enables focused characterization to support effective fate and transport estimates for uranium in the subsurface.

Truex, Michael J.; Szecsody, James E.; Qafoku, Nikolla; Serne, R. Jeffrey

2014-09-01T23:59:59.000Z

120

Scheibe named lead scientist for EMSL computing | EMSL  

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

lead scientist for EMSL computing He will oversee Multiscale Modeling and High Performance Computing Tim Scheibe EMSL has selected Tim Scheibe as lead scientist for Multiscale...

Note: This page contains sample records for the topic "lead acid model" 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

EXPERT TOOLS FOR QSAR ANALYSIS AND LEAD OPTIMIZATION The basic tools needed to build powerful, predictive models of biological activity (or any other property) from molecu-  

E-Print Network [OSTI]

EXPERT TOOLS FOR QSAR ANALYSIS AND LEAD OPTIMIZATION The basic tools needed to build powerful in SYBYL's QSAR module. These include molecular field generation tools, least-squares (PLS, PCA and SIMCA) and non-linear (hierarchical clustering) analysis tools. The most powerful of these techniques can

Ferreira, Márcia M. C.

122

The work leading to this Master's thesis was carried out at Informatics and Mathematical Modelling between the August 4, 2003 and February 2, 2004.  

E-Print Network [OSTI]

. Lyngby, February 2, 2004 Rasmus Kongsgaard Olsson i #12;ii #12;Abstract This thesis focuses on BlindPreface The work leading to this Master's thesis was carried out at Informatics and Mathematical: Blind source separation, Independent component analysis, non- stationary sources, EM. iii #12;iv #12

123

The work leading to this Master's thesis was carried out at Informatics and Mathematical Modelling between the August 4, 2003 and February 2, 2004.  

E-Print Network [OSTI]

. Lyngby, February 2, 2004 Rasmus Kongsgaard Olsson i #12; ii #12; Abstract This thesis focuses on BlindPreface The work leading to this Master's thesis was carried out at Informatics and Mathematical: Blind source separation, Independent component analysis, non stationary sources, EM. iii #12; iv #12

124

A metabolic model of the mitochondrion and its use in modelling diseases of the tricarboxylic acid cycle.  

E-Print Network [OSTI]

simulations were carried out in MATLAB (MathWorks, Inc., Natick, MA) using the COBRA toolbox [54] and the linear programming solver GLPK (http://www.gnu.org/software/glpk). Networks were visualised using Cytoscape [55]. All graphs were generated using... described in detail elsewhere [7,8], but briefly the main data required is a stoichiometric matrix (S), which represents all the reactions and metabolites in the model. The matrix is used with the assumption that the model is at a quasi steady state...

Smith, Anthony C; Robinson, Alan J

2011-06-29T23:59:59.000Z

125

Development and application of a microcomputer based model for acid plume opacity  

SciTech Connect (OSTI)

Many stationary sources discharge visible emission into the atmosphere. A visible plume can be a problem either from the viewpoint of particulate emission standards or of aesthetics and public concern. In recent years, with the installation of high efficiency particulate emission control devices on utility and industrial boilers, detached plumes have become more of a problem because formerly the emission of primary particulate matter obscured and/or served as a condensing surface for the condensable material. In order to better understand the phenomenon of detached plumes, a model is formulated to describe in mathematical terms the relationship between the particle suspension leaving the stack and the particulate composition of the plume as it evolves downwind of the stack. This model provides a means of relating parameters that govern plum opacity which is not feasible from a monitoring standpoint. Input parameters can be put into the model to investigate the effects on resulting plume opacity levels.

Lee, K.T. (National Cheng Kung Univ., (TW))

1987-01-01T23:59:59.000Z

126

Understanding the function and performance of carbon-enhanced lead-acid batteries : milestone report for the DOE energy storage systems program (FY11 Quarter 3: April through June 2011).  

SciTech Connect (OSTI)

This report describes the status of research being performed under CRADA No. SC10/01771.00 (Lead/Carbon Functionality in VRLA Batteries) between Sandia National Laboratories and East Penn Manufacturing, conducted for the U.S. Department of Energy's Energy Storage Systems Program. The Quarter 3 Milestone was completed on time. The milestone entails an ex situ analysis of a control as well as three carbon-containing negative plates in the raw, as cast form as well as after formation. The morphology, porosity, and porosity distribution within each plate was evaluated. In addition, baseline electrochemical measurements were performed on each battery to establish their initial performance. These measurements included capacity, internal resistance, and float current. The results obtained for the electrochemical testing were in agreement with previous evaluations performed at East Penn manufacturing. Cycling on a subset of the received East Penn cells containing different carbons (and a control) has been initiated.

Ferreira, Summer Rhodes; Shane, Rodney (East Penn Manufacturing, Lyon Station, PA); Enos, David George

2011-09-01T23:59:59.000Z

127

REACTIVE FLOW IN VUGGY CARBONATES: METHODS AND MODELS APPLIED TO MATRIX ACIDIZING OF CARBONATES  

E-Print Network [OSTI]

and its effect on fluid flow is numerical simulation. A 3D finite difference numerical model is developed based on Darcy-Brinkman formulation (DBF). Using the developed simulator a flow-based inversion approach is implemented to understand the connectivity...

Izgec, Omer

2010-07-14T23:59:59.000Z

128

Modeling Diameter Distributions of Poly (N-isopropylacrylamide-co-methacrylic Acid) Nanoparticles  

E-Print Network [OSTI]

Quang Cao, Peng Tian, Qinglin Wu School of Renewable Natural Resources, Louisiana State University Ag of 0.05 and 0.10 showed trends similar to those displayed in the observed data. VVC 2008 Wiley- tributions of gas-evaporated nanoparticles.21,22 Most of these models are based on coagulation theory

Cao, Quang V.

129

Lead carbonate scintillator materials  

DOE Patents [OSTI]

Improved radiation detectors containing lead carbonate or basic lead carbonate as the scintillator element are disclosed. Both of these scintillators have been found to provide a balance of good stopping power, high light yield and short decay constant that is superior to other known scintillator materials. The radiation detectors disclosed are favorably suited for use in general purpose detection and in medical uses. 3 figures.

Derenzo, S.E.; Moses, W.W.

1991-05-14T23:59:59.000Z

130

ATOC 3500/CHEM 3151 Spring 2014 The San Joaquin, acid rain, and using a simple "box" model  

E-Print Network [OSTI]

ATOC 3500/CHEM 3151 ­ Spring 2014 Problem 19 The San Joaquin, acid rain, and using a simple "box-called "acid fogs" in this valley. Assume a "box" of area 1 km2 (1 km x 1km) with the top of the box `box', calculate the steady-state SO2 concentration (in units of molecules cm-3 ). (c) Sulfuric acid

Toohey, Darin W.

131

Accurate small and wide angle x-ray scattering profiles from atomic models of proteins and nucleic acids  

SciTech Connect (OSTI)

A new method is introduced to compute X-ray solution scattering profiles from atomic models of macromolecules. The three-dimensional version of the Reference Interaction Site Model (RISM) from liquid-state statistical mechanics is employed to compute the solvent distribution around the solute, including both water and ions. X-ray scattering profiles are computed from this distribution together with the solute geometry. We describe an efficient procedure for performing this calculation employing a Lebedev grid for the angular averaging. The intensity profiles (which involve no adjustable parameters) match experiment and molecular dynamics simulations up to wide angle for two proteins (lysozyme and myoglobin) in water, as well as the small-angle profiles for a dozen biomolecules taken from the BioIsis.net database. The RISM model is especially well-suited for studies of nucleic acids in salt solution. Use of fiber-diffraction models for the structure of duplex DNA in solution yields close agreement with the observed scattering profiles in both the small and wide angle scattering (SAXS and WAXS) regimes. In addition, computed profiles of anomalous SAXS signals (for Rb{sup +} and Sr{sup 2+}) emphasize the ionic contribution to scattering and are in reasonable agreement with experiment. In cases where an absolute calibration of the experimental data at q = 0 is available, one can extract a count of the excess number of waters and ions; computed values depend on the closure that is assumed in the solution of the OrnsteinZernike equations, with results from the KovalenkoHirata closure being closest to experiment for the cases studied here.

Nguyen, Hung T. [BioMaPS Institute for Quantitative Biology, Rutgers University, Piscataway, New Jersey 08854 (United States); Pabit, Suzette A.; Meisburger, Steve P.; Pollack, Lois [School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853 (United States); Case, David A., E-mail: case@biomaps.rutgers.edu [BioMaPS Institute for Quantitative Biology, Rutgers University, Piscataway, New Jersey 08854 (United States); Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, New Jersey 08854 (United States)

2014-12-14T23:59:59.000Z

132

A model of vapor-liquid equilibria in acid gas: Aqueous alkanolamine systems using the electrolyte-NRTL equation  

SciTech Connect (OSTI)

In this paper a thermodynamically-consistent model is developed for representing vapor-liquid equilibria in the acid gas (H/sub 2/S, CO/sub 2/)-alkanolamine-water system. The model accounts for chemical equilibria in a rigorous manner. Activity coefficients are represented with the Electrolyte-NRTL equation, treating both long-range ion-ion interactions and short-range interactions between all true liquid phase species. Both water and alkanolamine are treated as solvents. Adjustable parameters of the Electrolyte-NRTL equation, representing short-range binary interactions, are fitted primarily on binary and ternary system VLE data. Calculated vapor pressures of H/sub 2/S or CO/sub 2/ over aqueous solutions of monoethanolamine or diethanolamine generally agree with published experimental data within 10 percent over the temperature range 25-120{sup 0}C. No more than two additional parameters are adjusted on quartenary system VLE data to provide a good representation of H/sub 2/S and CO/sub 2/ vapor pressures over the same alkanolamine solutions.

Austgen, D.M.; Rochelle, G.T. (Univ. of Texas at Austin, TX (US)); (Peng, X. (Sinopen Beijing Design Institute (US)); Chen, C.C. (Aspen Technology, Inc. TX (US)))

1988-01-01T23:59:59.000Z

133

Corrosion by liquid lead and lead-bismuth: experimental results review and analysis  

SciTech Connect (OSTI)

Liquid metal technologies for liquid lead and lead-bismuth alloy are under wide investigation and development for advanced nuclear energy systems and waste transmutation systems. Material corrosion is one of the main issues studied a lot recently in the development of the liquid metal technology. This study reviews corrosion by liquid lead and lead bismuth, including the corrosion mechanisms, corrosion inhibitor and the formation of the protective oxide layer. The available experimental data are analyzed by using a corrosion model in which the oxidation and scale removal are coupled. Based on the model, long-term behaviors of steels in liquid lead and lead-bismuth are predictable. This report provides information for the selection of structural materials for typical nuclear reactor coolant systems when selecting liquid lead or lead bismuth as heat transfer media.

Zhang, Jinsuo [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

134

Integrated hydrothermal model for proposed deep crustal borehole on Texas Gulf Coast - origins of geopressured brines and lead-zinc, uranium, hydrocarbon, and cap-rock deposits  

SciTech Connect (OSTI)

Sediment accumulation over Jurassic salt in the Gulf coast has resulted in an interrelated sequential development of salt domes and diagenetic, hydrothermal, and hydrocarbon generation zones. Primary anhydrites within the salt with high /sup 87/Sr//sup 86/Sr ratios suggest early generation of underlying fluids rich in radiogenic strontium that were incorporated in the salt during its diapiric rise to the surface. Subsequently, late-stage, hydrocarbon-rich, saline hydrothermal fluids migrated up the margins of the salt domes, and caused precipitation of several generation of calcite cements, followed by uranium and Mississippi Valley-type lead-zinc-barite deposits near or at salt dome rims. Present fluids in the lower Frio (deeper than 4270 m or 14,000 ft) at the Pleasant Bayou geopressured-geothermal test well (Brazoria County, Texas) are highly saline and enriched in iron, manganese, lead, zinc, and carbon dioxide, and are saturated in methane. These lower Frio waters must have migrated into the area recently because they are not in isotopic equilibrium with diagenetic albite cements formed at temperatures greater than 120/sup 0/C (248/sup 0/F) less than 7.5 million years ago. Isotopic and geochemical data suggest that the fluids trapped by geopressure in the lower Frio at the Pleasant Bayou well are the parent fluids of those causing salt dome cap-rock mineralization.

Light, M.P.R.; Posey, H.H.

1986-05-01T23:59:59.000Z

135

THE CHEMISTRY OF COAL MODEL COMPOUNDS -CLEAVAGE OF ALIPHATIC BRIDGES BETWEEN AROMATIC NUCLEI CATALYSED BY LEWIS ACIDS  

E-Print Network [OSTI]

and Background I. II. III. IV. II. Coal Liquefaction . Coal Structure . Lewis Acid Catalysts. Scope andOrganic Structure of Bituminous Coal", Proceedings, Stanford

Taylor, Newell D.

2011-01-01T23:59:59.000Z

136

Salt Effect Model for Aqueous Solubility of TBP in a 5 to 100% TBP/n-Dodecane-Nitric Acid-Water Biphasic System at 298.2 K  

SciTech Connect (OSTI)

The solubilities of nonelectrolytes in aqueous electrolyte solutions have traditionally been modeled by using the Setschenow equation for salt effect. The aqueous solubility of tri-n-butyl phosphate (TBP) during operating conditions of the Purex process is an important parameter for safety considerations. Use of the Setschenow equation for aqueous solubility of TBP under limited conditions has been reported in the literature. However, there is no general model available to account for the presence of the diluent and for the case of multicomponent electrolyte solutions in which only some electrolytes are solvated and extracted by TBP. An extended salt effect model is proposed for predicting the aqueous solubility of TBP in a 5 to 100% TBP/n-dodecane-nitric acid-water biphasic system at 298.2 K. The literature data on TBP solubility were correlated to aqueous acid concentration, diluent concentration in the solvents, and an interaction parameter for electrolytic solutes (extracted or not extracted by TBP)

Kumar, Shekhar; Koganti, Sudhir Babu [Indira Gandhi Centre for Atomic Research (India)

2000-02-15T23:59:59.000Z

137

The influence of naturally-occurring organic acids on model estimates of lakewater acidification using the model of acidification of groundwater in catchments (MAGIC). Summary of research conducted during year 1  

SciTech Connect (OSTI)

A project for the US Department of Energy, entitled ``Incorporation of an organic acid representation into MAGIC (Model of Acidification of Groundwater in Catchments) and Testing of the Revised Model UsingIndependent Data Sources`` was initiated by E&S Environmental Chemistry, Inc. in March, 1992. Major components of the project include: improving the MAGIC model by incorporating a rigorous organic acid representation, based on empirical data and geochemical considerations, and testing the revised model using data from paleolimnological hindcasts of preindustrial chemistry for 33 Adirondack Mountain lakes, and the results of whole-catchment artificial acidification projects in Maine and Norway. The ongoing research in this project involves development of an organic acid representation to be incorporated into the MAGIC modeland testing of the improved model using three independent data sources. The research during Year 1 has included conducting two workshops to agree on an approach for the organic acid modeling, developing the organic subroutine and incorporating it into MAGIC (Task 1), conducing MAGIC hindcasts for Adirondack lakes and comparing the results with paleolimnological reconstructions (Task 2), and conducting site visits to the manipulation project sites in Maine and Norway. The purpose of this report is to provide a summary of the work that has been conducted on this project during Year 1. Tasks 1 and 2 have now been completed.

Sullivan, T.J.; Eilers, J.M. [E and S Environmental Chemistry, Inc., Corvallis, OR (United States)] [E and S Environmental Chemistry, Inc., Corvallis, OR (United States); Cosby, B.J. [Virginia Univ., Charlottesville, VA (United States). Dept. of Environmental Sciences] [Virginia Univ., Charlottesville, VA (United States). Dept. of Environmental Sciences; Driscoll, C.T. [Syracuse Univ., NY (United States). Dept. of Civil Engineering] [Syracuse Univ., NY (United States). Dept. of Civil Engineering; Hemond, H.F. [Massachusetts Inst. of Tech., Cambridge, MA (United States). Dept. of Civil Engineering] [Massachusetts Inst. of Tech., Cambridge, MA (United States). Dept. of Civil Engineering; Charles, D.F. [Academy of Natural Sciences of Philadelphia, PA (United States). Patrick Center for Environmental Research] [Academy of Natural Sciences of Philadelphia, PA (United States). Patrick Center for Environmental Research; Norton, S.A. [Maine Univ., Orono, ME (United States). Dept. of Geological Sciences] [Maine Univ., Orono, ME (United States). Dept. of Geological Sciences

1993-03-05T23:59:59.000Z

138

E-Print Network 3.0 - acid analysis including Sample Search Results  

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

predict the relative acid strength of a set... section. Findings Our analysis led to the identification of four distinct mental models of acid and acid... models of acid and acid...

139

Fate of Acids in Clouds 1. Combination with bases dissolved in clouds: acids neutralized  

E-Print Network [OSTI]

problems. E#11;ects of Acid Rain 1. Vegetation: SO 2 is toxic to plants #15; Leaves damaged below pH 3 rain { Athens and Rome cathedrals and statues: pollution leads to acid rain #15; SteelFate of Acids in Clouds 1. Combination with bases dissolved in clouds: acids neutralized NH 3 (g

Schofield, Jeremy

140

Sandia National Laboratories: Due Diligence on Lead Acid Battery Recycling  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared0EnergySandia InvolvesDOE-BERPressure,Fernando Garzon JointDue

Note: This page contains sample records for the topic "lead acid model" 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.


141

Enrichment of plasma lipid subfractions with varying dietary levels of N-3 fatty acids in the canine model  

E-Print Network [OSTI]

In an attempt to better understand how varying levels of dietary n-3 fatty acids affected enrichment of plasma lipid subfractions, the current study was undertaken. Adult dogs were fed one of two basal diets with the addition of beef tallow...

Spencer, Angela Leah

1999-01-01T23:59:59.000Z

142

Use of ferric sulfate: acid media for the desulfurization of model compounds of coal. [Dibenzothiophene, diphenyl sulfide, di-n-butyl sulfide  

SciTech Connect (OSTI)

The objective of this work has been to investigate the ability of ferric sulfate-acid leach systems to oxidize the sulfur in model compounds of coal. Ferric iron-acid leach systems have been shown to be quite effective at removal of inorganic sulfur in coal. In this study, the oxidative effect of ferric iron in acid-leach systems was studied using dibenzothiophene, diphenyl sulfide, and di-n-butyl sulfide as models of organic sulfur groups in coal. Nitrogen and oxygen, as well as various transition metal catalysts and oxidants, were utilized in this investigation. Dibenzothiophene was found to be quite refractory to oxidation, except in the case where metavanadate was added, where it appears that 40% oxidation to sulfone could have occurred per hour at 150/sup 0/C and mild oxygen pressure. Diphenyl sulfide was selectively oxidized to sulfoxide and sulfone in an iron and oxygen system. Approximately 15% conversion to sulfone occurred per hour under these conditions. Some of the di-n-butyl sulfide was cracked to 1-butene and 1-butanethiol under similar conditions. Zinc chloride and ferric iron were used at 200/sup 0/C in an attempt to desulfonate dibenzothiophene sulfone, diphenyl sulfone, and di-n-butyl sulfone. Di-n-butyl sulfone was completely desulfurized on one hour and fragmented to oxidized parafins, while dibenzothiophene sulfone and diphenyl sulfone were unaffected. These results suggest that an iron-acid leach process could only selectively oxidize aryl sulfides under mild conditions, representing only 20% of the organic sulfur in coal (8% of the total sulfur). Removal through desulfonation once selective sulfur oxidation had occurred was only demonstrated for alkyl sulfones, with severe oxidation of the fragmented paraffins also occurring in one hour.

Clary, L.R.; Vermeulen, T.; Lynn, S.

1980-12-01T23:59:59.000Z

143

Preliminary synchrotron analysis of lead in hair from a lead smelter worker  

SciTech Connect (OSTI)

Synchrotron X-ray fluorescence has been used to study the distribution of lead in a hair sample collected from a lead smelter worker. A mathematical model was used to imitate the transverse scan signal based on the analysis volume and concentration profiles. The results suggest that the Pb originates both from ingestion and environmental exposure, however direct deposition from the environment is the more important source of hair lead. The model could apply equally to any other analysis involving a thin cylindrical sample.

Martin, R.R.; Kempson, I.M.; Naftel, S.J.; Skinner, W.M. (Case Western); (U. South Australia)

2008-06-09T23:59:59.000Z

144

Breakthrough: Lead-free Solder  

ScienceCinema (OSTI)

Ames Laboratory senior metallurgist Iver Anderson explains the importance of lead-free solder in taking hazardous lead out of the environment by eliminating it from discarded computers and electronics that wind up in landfills. Anderson led a team that developed a tin-silver-copper replacement for traditional lead-tin solder that has been adopted by more than 50 companies worldwide.

Anderson, Iver

2013-03-01T23:59:59.000Z

145

Breakthrough: Lead-free Solder  

SciTech Connect (OSTI)

Ames Laboratory senior metallurgist Iver Anderson explains the importance of lead-free solder in taking hazardous lead out of the environment by eliminating it from discarded computers and electronics that wind up in landfills. Anderson led a team that developed a tin-silver-copper replacement for traditional lead-tin solder that has been adopted by more than 50 companies worldwide.

Anderson, Iver

2012-01-01T23:59:59.000Z

146

Modeling Precipitation and Sorption of Al, U and Co-contaminants during Titration of Acidic Sediments in Recirculation Flow-Through Experiments  

SciTech Connect (OSTI)

We conducted batch and recirculating column titration tests with contaminated acidic sediments with controlled CO2 in the headspace, and extended the geochemical model by Gu et al. (2003, GCA) to better understand and quantify the reactions governing trace metal fate in the subsurface. The sediment titration curve showed slow pH increase due to strong buffering by Al precipitation and CO2 uptake. Assuming precipitation of basaluminite at low saturation index (SI=-4), and decreasing cation exchange selectivity coefficient (kNa\\Al=0.3), the predictions are close to the observed pH and Al; and the model explains 1) the observed Ca, Mg, and Mn concentration decrease by cation exchange with sorbed Al, and 2) the decrease of U by surface complexation with Fe hydroxides at low pH, and precipitation as liebigite (Ca2UO2(CO3)3:10H2O) at pH>5.5. Without further adjustment geochemical parameters, the model describes reasonably well previous sediment and column titration tests without CO2 in the headspace, as well as the new large column test. The apparent inhibition of U and Ni decrease in the large column can be explained by formation of aqueous carbonate complexes and/or competition with carbonate for surface sites. These results indicated that ignoring labile solid phase Al would underestimate base requirement in titration of acidic aquifers.

Tang, Guoping [ORNL; Luo, Wensui [Institute of Urban Environment, Chinese Academy of Sciences; Brooks, Scott C [ORNL; Watson, David B [ORNL; Gu, Baohua [ORNL

2013-01-01T23:59:59.000Z

147

Decontaminating lead bricks and shielding  

SciTech Connect (OSTI)

Lead used for shielding is often surface contaminated with radioisotopes and is therefore a RCRA D008 mixed waste. The technology-based standard for treatment is macroencapsulation. However, decontaminating and recycling the clean lead is a more attractive solution. Los Alamos National Laboratory decontaminates material and equipment contaminated with radioisotopes. Decontaminating lead poses special problems because of the RCRA hazard classification and the size of the inventory, now about 50 tons and likely to grow substantially of planned decommissioning operations. Thus lead, in the form of bricks and other shield shapes, is surface contaminated with fission products. One of the best methods for contaminated lead is removing the superficial layer of contamination with an abrasive medium under pressure. For lead, a mixture of alumina with water and air at about 40 psig rapidly and effectively decontaminates the lead. The abrasive medium is sprayed onto the lead in a scaled-off area. The slurry of abrasive and particles of lead falls through a floor and is collected in a sump. A pump sends the slurry mixture back to the spray gun, creating a continuous process. The process generates small volumes of lead slurry that can be solidified and, because it passes the TCLP, is not a mixed waste. The decontaminated lead can be released for recycling.

Lussiez, G.

1994-02-01T23:59:59.000Z

148

Decontaminating lead bricks and shielding  

SciTech Connect (OSTI)

Lead used for shielding is often surface contaminated with radioisotopes and is therefore a RCRA D008 mixed waste. The technology-based standard for treatment is macroencapsulation. However, decontaminating and recycling the clean lead is a more attractive solution. Los Alamos National Laboratory decontaminates material and equipment contaminated with radioisotopes. Decontaminating lead poses special problems because of the RCRA hazard classification and the size of the inventory, now about 50 tons and likely to grow substantially because of planned decommissioning operations. This lead, in the form of bricks and other shield shapes, is surface contaminated with fission products. One of the best methods for decontaminating lead is removing the thin superficial layer of contamination with an abrasive medium trader pressure. For lead, a mixture of alumina with water and air at about 40 psig rapidly and effectively decontaminates the lead. The abrasive medium is sprayed onto the lead in a sealed-off area. The slurry of abrasive and particles of lead falls through a floor grating and is collected in a sump. A pump sends the slurry mixture back to the spray gun, creating a continuous process. The process generates small volumes of contaminated lead slurry that can be solidified and, because it passes the TCLP, is not a mixed waste. The decontaminated lead can be released for recycling.

Lussiez, G.W.

1993-05-01T23:59:59.000Z

149

Decontaminating lead bricks and shielding  

SciTech Connect (OSTI)

Lead used for shielding is often surface contaminated with radioisotopes and is therefore a RCRA D008 mixed waste. The technology-based standard for treatment is macroencapsulation. However, decontaminating and recycling the clean lead is a more attractive solution. Los Alamos National Laboratory decontaminates material and equipment contaminated with radioisotopes. Decontaminating lead poses special problems because of the RCRA hazard classification and the size of the inventory, now about 50 tons and likely to grow substantially because of planned decommissioning operations. This lead, in the form of bricks and other shield shapes, is surface contaminated with fission products. One of the best methods for decontaminating lead is removing the thin superficial layer of contamination with an abrasive medium trader pressure. For lead, a mixture of alumina with water and air at about 40 psig rapidly and effectively decontaminates the lead. The abrasive medium is sprayed onto the lead in a sealed-off area. The slurry of abrasive and particles of lead falls through a floor grating and is collected in a sump. A pump sends the slurry mixture back to the spray gun, creating a continuous process. The process generates small volumes of contaminated lead slurry that can be solidified and, because it passes the TCLP, is not a mixed waste. The decontaminated lead can be released for recycling.

Lussiez, G.W.

1993-01-01T23:59:59.000Z

150

Energy technology and emissions control for acid rain abatement in Asia  

SciTech Connect (OSTI)

After more than ten years of research, acid rain is a sufficiently serious problem in North America to warrant control action. The acid rain problem has become a threat to the Asian continent as well. Emissions of sulfur dioxide and nitrogen oxides are already high and announces plans for increases in coal use by countries in the region imply a major increase in emissions in the future. This will inevitably lead to greater incidence of acid rain and probably significant environmental damage in some locations. The purpose of this paper is to examine some of the issues relating to acid-rain-control technology in Asia and to suggest ways to include technology options in integrated simulation models of acid rain in Asia. 14 refs., 9 figs., 6 tabs. (FL)

Streets, D.G.

1990-01-01T23:59:59.000Z

151

FOR MORE INFORMATION, CONTACT: TP Straatsma, Initiative Lead  

E-Print Network [OSTI]

FOR MORE INFORMATION, CONTACT: TP Straatsma, Initiative Lead 509-375-2802 tps@pnl.gov www.pnl.gov e Development of Exascale Algorithms for Molecular Modeling Lead investigator: Dr. Karol Kowalski Researchers Optimizations for Extreme Scale Systems Lead investigator: Dr. Daniel Chavarria Exascale systems will provide

152

BNL Citric Acid Technology: Pilot Scale Demonstration  

SciTech Connect (OSTI)

The objective of this project is to remove toxic metals such as lead and cadmium from incinerator ash using the Citric Acid Process developed at Brookhaven National Laboratory. In this process toxic metals in bottom ash from the incineration of municipal solid waste were first extracted with citric acid followed by biodegradation of the citric acid-metal extract by the bacterium Pseudomonas fluorescens for metals recovery. The ash contained the following metals: Al, As, Ba, Ca, Cd, Cr, Cu, Fe, Mg, Mn, Ni, Pb, Se, Sr, Ti, and Zn. Optimization of the Citric Acid Process parameters which included citric acid molarity, contact time, the impact of mixing aggressiveness during extraction and pretreatment showed lead and cadmium removal from incinerator ash of >90%. Seeding the treated ash with P. fluorescens resulted in the removal of residual citric acid and biostabilization of any leachable lead, thus allowing it to pass EPA?s Toxicity Characteristic Leaching Procedure. Biodegradation of the citric acid extract removed >99% of the lead from the extract as well as other metals such as Al, Ca, Cu, Fe, Mg, Mn, Ti, and Zn. Speciation of the bioprecipitated lead by Extended X-ray Absorption Fine Structure at the National Synchrotron Light Source showed that the lead is predominantly associated with the phosphate and carboxyl functional groups in a stable form. Citric acid was completely recovered (>99%) from the extract by sulfide precipitation technique and the extraction efficiency of recovered citric acid is similar to that of the fresh citric acid. Recycling of the citric acid should result in considerable savings in the overall treatment cost. We have shown the potential application of this technology to remove and recover the metal contaminants from incinerator ash as well as from other heavy metal bearing wastes (i.e., electric arc furnace dust from steel industry) or soils. Information developed from this project is being applied to demonstrate the remediation of lead paint contaminated soils on Long Island.

FRANCIS, A J; DODGE,; J, C; GILLOW, J B; FORRESTER, K E

1999-09-24T23:59:59.000Z

153

Single event kinetic modeling of solid acid alkylation of isobutane with butenes over proton-exchanged Y-Zeolites  

E-Print Network [OSTI]

agents. Hydride shifts and methyl shifts are non-branching isomerization steps. These two slightly exothermic elementary steps proceed through the exchange of a hydride/methyl substituent and a positive charge between two adjacent carbon atoms...) mechanism is successful in explaining the experimental observation that n-butane does not isomerize to isobutane in the presence of strong liquid acids such as HF/SbF5 under conditions where n-pentane and n-hexane quickly isomerize to 2-methyl-butane and 2...

Martinis Coll, Jorge Maximiliano

2006-04-12T23:59:59.000Z

154

High temperature superconductor current leads  

DOE Patents [OSTI]

An electrical lead is disclosed having one end for connection to an apparatus in a cryogenic environment and the other end for connection to an apparatus outside the cryogenic environment. The electrical lead includes a high temperature superconductor wire and an electrically conductive material distributed therein, where the conductive material is present at the one end of the lead at a concentration in the range of from 0 to about 3% by volume, and at the other end of the lead at a concentration of less than about 20% by volume. Various embodiments are shown for groups of high temperature superconductor wires and sheaths. 9 figs.

Hull, J.R.; Poeppel, R.B.

1995-06-20T23:59:59.000Z

155

E-Print Network 3.0 - acid storage batteries Sample Search Results  

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

electric power applications Summary: expensive. Pneumatic storage technology's main advantages over the lead-acid batteries are (a) unlimited... . . . . . . . . . . . . . . . . ....

156

acid neutralization capacity: Topics by E-print Network  

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

Websites Summary: itself against acidification and is used to monitor the effect of acid rain on watersheds. From 1993MASTERS REPORT ANALYSIS AND MODELING OF ACID...

157

acid neutralizing capacity: Topics by E-print Network  

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

Websites Summary: itself against acidification and is used to monitor the effect of acid rain on watersheds. From 1993MASTERS REPORT ANALYSIS AND MODELING OF ACID...

158

LEADING ADULT SQUAWFISH (Ptychocheilus oregonensis)  

E-Print Network [OSTI]

of Federal, State or cooperating agencies and in processed form for economy and to avoid delay in publicationLEADING ADULT SQUAWFISH (Ptychocheilus oregonensis) WITHIN AN ELECTRIC FIELD Marine Biological, Arnie J. Suomela, Commissioner LEADING ADULT SQUAWFISH ( PTYCHOCHEILUS OREGONENSIS ) WITHIN AN ELECTRIC

159

Lead reduction in ambient air  

SciTech Connect (OSTI)

The Bureau of Mines evaluated the emission control methods, including the capital investments and operating cost, necessary for further reducing lead levels in ambient air at the Glover, Herculaneum, and Buick smelter-refineries in Missouri and the East Helena, MT, smelter. This report presents theoretically achievable lead emission reductions and estimated capital and operating costs.

Smith, R.D.; Kiehn, O.A.; Wilburn, D.R.; Bowyer, R.C.

1987-01-01T23:59:59.000Z

160

Inadvertent Climate Modification Due to Anthropogenic Lead  

SciTech Connect (OSTI)

The relationship between atmospheric particulate matter and the formation of clouds is among the most uncertain aspects of our current understanding of climate change1. One specific question that remains unanswered is how anthropogenic particulate emissions are affecting the nucleation of ice crystals. Satellites show ice clouds cover more than a third of the globe2 and models suggest that ice nucleation initiates the majority of terrestrial precipitation3. It is therefore not possible to adequately understand either climate change or the global water cycle without understanding ice nucleation. Here we show that lead-containing particles are among the most efficient ice nucleating substances commonly found in the atmosphere. Field observations were conducted with mass spectrometry and electron microscopy at two remote stations on different continents, far removed from local emissions. Laboratory studies within two cloud chambers using controlled experimental conditions support the field data. Because the dominate sources of particulate lead are anthropogenic emissions such as aviation fuel, power generation, smelting, and the re-suspension of residue from tetra-ethyl leaded gasoline4, it is likely that cloud formation and precipitation have been affected when compared to pre-industrial times. A global climate model comparing pre-industrial and anthropogenically perturbed conditions shows that lead-containing particles may be increasing the outgoing longwave radiation by 0.2 to 0.8 W m-2, thereby offsetting a portion of the warming attributed to greenhouse gases1.

Cziczo, Daniel J.; Stetzer, Olaf; Worringen, Annette; Ebert, Martin; Weinbruch, Stephan; Kamphus, M.; Gallavardin, S. J.; Curtius, J.; Borrmann, S.; Froyd, Karl D.; Mertes, S.; Mohler, Ottmar; Lohmann, U.

2009-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "lead acid model" 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.


161

Application of the Software as a Service Model to the Control of Complex Building Systems  

E-Print Network [OSTI]

the Flow Battery Electricity Generation from PV ElectricityPV: photovoltaic, BS: conventional lead acid battery, FB:2009a PV: photovoltaic, BS: conventional lead acid battery,

Stadler, Michael

2012-01-01T23:59:59.000Z

162

Lead contamination in street soils of Nairobi City and Mombasa Island, Kenya  

SciTech Connect (OSTI)

The advent of modern industrialization and, in particular, the motor vehicle has witnessed dramatic increases in lead usage both as a component of lead-acid storage battery and from 1923 as organic lead alkyl anti-knock additive in petroleum. Several workers have established a correlation between increasing lead concentration in roadside soils and vehicular traffic density. Although researchers studied the heavy metal content in Lake Victoria sediments, no urban roadside soils were investigated. Since lead is used as a petrol additive in Kenya, it is necessary to document the extent and magnitude of lead contamination of roadside soils in inland and coastal urban environments and evaluate its environmental implications.

Onyari, J.M.; Wandiga, S.O.; Njenga, G.K.; Nyatebe, J.O. (Univ. of Nairobi (Kenya))

1991-05-01T23:59:59.000Z

163

Geochemical study of lead in soils from West Dallas, Texas  

SciTech Connect (OSTI)

Soil samples from West Dallas near the RSR smelter were collected and tested to see the content, source, and mobility of lead. 30 cm and 90 cm long cores were cut into 1 cm long pieces and each piece analyzed separately. The results showed that 90%--95% of the lead is readily extractable in cold dilute nitric acid. The lateral distribution of lead in West Dallas indicates an exponential-like decrease with distance from the RSR smelter. Concentrations greater than 500 ppm occur in soils below 10 cm within 1,000 feet of the smelter. In the vicinity of the smelter (300 feet radius), soil cores with total lead content as high as 18,000 ppm in the top 15 cm were obtained. At a distance of 2,400 feet of the smelter the lead in the soil amounts to 400 ppm and drops to 270 ppm at 4,000 feet. The total lead content with depth, correlates with previous clean-up and civil activities in the area: (1) where the soil is original, the lead concentration decreases exponentially with depth; (2) where the soil was cleaned up, the top 10 cm are devoid of lead but are underlain by soil whose lead content varies in response to distance from the smelter; (3) where the top soil had been disturbed (removed, replaced, mixed, etc.) as a result of civil works, the lead content is relatively lower than 1 (above). The underlying insitu soils exhibit similar lead concentration as those in 2 (above).

Ibrahim, N.M.; Carter, J.L. (Univ. of Texas, Dallas, TX (United States). Programs in Geosciences)

1993-02-01T23:59:59.000Z

164

NATIONAL LEAD COMPANY OF OHIO  

Office of Legacy Management (LM)

t-t AL- 1. + T fi r,y* t ,.- . NATIONAL LEAD COMPANY OF OHIO Ofll i iy Ci)wp HEALTH AND SAFETY DIVISION - ANALYTICAL DEPT. ANALYTICAL DATA SHEET U-G b ;33y jl:tL G c-w &3(y I...

165

Modelling the effects of acid deposition and climate change on soil and run-off chemistry at Risdalsheia, Norway Hydrology and Earth System Sciences, 5(3), 487498 (2001) EGS  

E-Print Network [OSTI]

at Risdalsheia, Norway 487 Hydrology and Earth System Sciences, 5(3), 487­498 (2001) © EGS Modelling effects of acid deposition and climate change on soil and run-off chemistry at Risdalsheia, Norway J.P. Mol Norway. These unique experiments at the ecosystem scale provide information on the short-term effects

Paris-Sud XI, Université de

166

ancient greek lead: Topics by E-print Network  

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

Summary: , as it may lead to the physical replication of the object by means of 3D printing 6. This has become clearqp: A Tool for Generating 3D Models of Ancient Greek...

167

LEAD PAINT DISCLOSURE Housing built before 1978 may contain lead-based paint. Lead from paint, paint chips, and dust  

E-Print Network [OSTI]

Your Family from Lead In Your Home. All Wesleyan housing was built before 1978 with the exceptionLEAD PAINT DISCLOSURE Housing built before 1978 may contain lead-based paint. Lead from paint, paint chips, and dust can pose health hazards if not taken care of properly. Lead exposure is especially

Royer, Dana

168

The LHC Lead Injector Chain  

E-Print Network [OSTI]

A sizeable part of the LHC physics programme foresees lead-lead collisions with a design luminosity of 1027 cm-2 s-1. This will be achieved after an upgrade of the ion injector chain comprising Linac3, LEIR, PS and SPS machines [1,2]. Each LHC ring will be filled in 10 min by almost 600 bunches, each of 7107 lead ions. Central to the scheme is the Low Energy Ion Ring (LEIR) [3,4], which transforms long pulses from Linac3 into high-brilliance bunches by means of multi-turn injection, electron cooling and accumulation. Major limitations along the chain, including space charge, intrabeam scattering, vacuum issues and emittance preservation are highlighted. The conversion from LEAR (Low Energy Antiproton Ring) to LEIR involves new magnets and power converters, high-current electron cooling, broadband RF cavities, and a UHV vacuum system with getter (NEG) coatings to achieve a few 10-12 mbar. Major hardware changes in Linac3 and the PS are also covered. An early ion scheme with fewer bunches (but each at nominal...

Beuret, A; Blas, A; Burkhardt, H; Carli, Christian; Chanel, M; Fowler, A; Gourber-Pace, M; Hancock, S; Hourican, M; Hill, C E; Jowett, John M; Kahle, K; Kchler, D; Lombardi, A M; Mahner, E; Manglunki, Django; Martini, M; Maury, S; Pedersen, F; Raich, U; Rossi, C; Royer, J P; Schindl, Karlheinz; Scrivens, R; Sermeus, L; Shaposhnikova, Elena; Tranquille, G; Vretenar, Maurizio; Zickler, T

2004-01-01T23:59:59.000Z

169

Where Is Lead Found? Paint in many homes built before 1978 may contain lead.  

E-Print Network [OSTI]

in lead crystal or lead-glazed pottery may contain lead. Where Is Lead Most Likely to Be a Hazard on toys and furniture -- especially if antique or imported -- may contain lead. · Food or liquids stored

Liskiewicz, Maciej

170

Lead Slowing Down Spectrometer Status Report  

SciTech Connect (OSTI)

This report documents the progress that has been completed in the first half of FY2012 in the MPACT-funded Lead Slowing Down Spectrometer project. Significant progress has been made on the algorithm development. We have an improve understanding of the experimental responses in LSDS for fuel-related material. The calibration of the ultra-depleted uranium foils was completed, but the results are inconsistent from measurement to measurement. Future work includes developing a conceptual model of an LSDS system to assay plutonium in used fuel, improving agreement between simulations and measurement, design of a thorium fission chamber, and evaluation of additional detector techniques.

Warren, Glen A.; Anderson, Kevin K.; Bonebrake, Eric; Casella, Andrew M.; Danon, Yaron; Devlin, M.; Gavron, Victor A.; Haight, R. C.; Imel, G. R.; Kulisek, Jonathan A.; O'Donnell, J. M.; Weltz, Adam

2012-06-07T23:59:59.000Z

171

Thermal conductivity of bulk nanostructured lead telluride  

SciTech Connect (OSTI)

Thermal conductivity of lead telluride with embedded nanoinclusions was studied using Monte Carlo simulations with intrinsic phonon transport properties obtained from first-principles-based lattice dynamics. The nanoinclusion/matrix interfaces were set to completely reflect phonons to model the maximum interface-phonon-scattering scenario. The simulations with the geometrical cross section and volume fraction of the nanoinclusions matched to those of the experiment show that the experiment has already reached the theoretical limit of thermal conductivity. The frequency-dependent analysis further identifies that the thermal conductivity reduction is dominantly attributed to scattering of low frequency phonons and demonstrates mutual adaptability of nanostructuring and local disordering.

Hori, Takuma [Department of Mechanical Engineering, The University of Tokyo, Bunkyo, Tokyo 113-8656 (Japan); Chen, Gang [Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States); Shiomi, Junichiro, E-mail: shiomi@photon.t.u-tokyo.ac.jp [Department of Mechanical Engineering, The University of Tokyo, Bunkyo, Tokyo 113-8656 (Japan); PRESTO, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012 (Japan)

2014-01-13T23:59:59.000Z

172

Lead isotopes in sediments of the Loire River (France): natural versus anthropogenic origin  

E-Print Network [OSTI]

Lead isotopes in sediments of the Loire River (France): natural versus anthropogenic origin Philippe Négrel Emmanuelle Petelet-Giraud BRGM, Orléans, France Sediments along the Loire River (central France) were investigated by means of lead isotopes determined on the labile sediment fraction, or acid

Paris-Sud XI, Université de

173

Isotopic generator for bismuth-212 and lead-212 from radium  

DOE Patents [OSTI]

A method and apparatus for providing radionuclides of bismuth-212 and lead-212. Thorium-228 and carrier solution starting material is input to a radiologically contained portion of an isotopic generator system, and radium-224 is separated from thorium-228 which is retained by a strongly basic anion exchange column. The separated radium-224 is transferred to an accessible, strongly acidic cationic exchange column. The cationic column retains the radium-224, and natural radioactive decay generates bismuth-212 and lead-212. The cationic exchange column can also be separated from the contained portion of the system and utilized without the extraordinary safety measures necessary in the contained portion. Furthermore, the cationic exchange column provides over a relatively long time period the short lived lead-212 and bismuth-212 radionuclides which are useful for a variety of medical therapies.

Atcher, Robert W. (Kensington, MD); Friedman, Arnold M. (Park Forest, IL); Hines, John (Glen Ellyn, IL)

1987-01-01T23:59:59.000Z

174

Carbonic Acid Pretreatment of Biomass  

SciTech Connect (OSTI)

This project sought to address six objectives, outlined below. The objectives were met through the completion of ten tasks. 1) Solidify the theoretical understanding of the binary CO2/H2O system at reaction temperatures and pressures. The thermodynamics of pH prediction have been improved to include a more rigorous treatment of non-ideal gas phases. However it was found that experimental attempts to confirm theoretical pH predictions were still off by a factor of about 1.8 pH units. Arrhenius experiments were carried out and the activation energy for carbonic acid appears to be substantially similar to sulfuric acid. Titration experiments have not yet confirmed or quantified the buffering or acid suppression effects of carbonic acid on biomass. 2) Modify the carbonic acid pretreatment severity function to include the effect of endogenous acid formation and carbonate buffering, if necessary. It was found that the existing severity functions serve adequately to account for endogenous acid production and carbonate effects. 3) Quantify the production of soluble carbohydrates at different reaction conditions and severity. Results show that carbonic acid has little effect on increasing soluble carbohydrate concentrations for pretreated aspen wood, compared to pretreatment with water alone. This appears to be connected to the release of endogenous acids by the substrate. A less acidic substrate such as corn stover would derive benefit from the use of carbonic acid. 4) Quantify the production of microbial inhibitors at selected reaction conditions and severity. It was found that the release of inhibitors was correlated to reaction severity and that carbonic acid did not appear to increase or decrease inhibition compared to pretreatment with water alone. 5) Assess the reactivity to enzymatic hydrolysis of material pretreated at selected reaction conditions and severity. Enzymatic hydrolysis rates increased with severity, but no advantage was detected for the use of carbonic acid compared to water alone. 6) Determine optimal conditions for carbonic acid pretreatment of aspen wood. Optimal severities appeared to be in the mid range tested. ASPEN-Plus modeling and economic analysis of the process indicate that the process could be cost competitive with sulfuric acid if the concentration of solids in the pretreatment is maintained very high (~50%). Lower solids concentrations result in larger reactors that become expensive to construct for high pressure applications.

G. Peter van Walsum; Kemantha Jayawardhana; Damon Yourchisin; Robert McWilliams; Vanessa Castleberry

2003-05-31T23:59:59.000Z

175

Nick Wright Named Advanced Technologies Group Lead  

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

Nick Wright Named Advanced Technologies Group Lead Nick Wright Named Advanced Technologies Group Lead February 4, 2013 Nick Nick Wright has been named head of the National Energy...

176

NERSC seeks Computational Systems Group Lead  

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

seeks Computational Systems Group Lead NERSC seeks Computational Systems Group Lead January 6, 2011 by Katie Antypas Note: This position is now closed. The Computational Systems...

177

Distributed Generation Lead-by-Example Resources  

Broader source: Energy.gov [DOE]

State governments can lead by example by promoting renewable energy programs and policies. Efforts to lead by example include using renewable energy resources (including alternative fuel for...

178

Long range transport of acid rain precursors  

E-Print Network [OSTI]

A model of the long range transport of primary and secondary pollutants derived by Fay and Rosenzweig (1) is applied to the problem of the transport of acid rain precursors. The model describes the long term average (annual ...

Fay, James A.

1983-01-01T23:59:59.000Z

179

Multi-lead heat sink  

DOE Patents [OSTI]

The disclosure relates to a heat sink used to protect integrated circuits from the heat resulting from soldering them to circuit boards. A tubular housing contains a slidable member which engages somewhat inwardly extending connecting rods, each of which is rotatably attached at one end to the bottom of the housing. The other end of each rod is fastened to an expandable coil spring loop. As the member is pushed downward in the housing, its bottom edge engages and forces outward the connecting rods, thereby expanding the spring so that it will fit over an integrated circuit. After the device is in place, the member is slid upward and the spring contracts about the leads of the integrated circuit. Soldering is now conducted and the spring absorbs excess heat therefrom to protect the integrated circuit. The placement steps are repeated in reverse order to remove the heat sink for use again.

Roose, Lars D. (Albuquerque, NM)

1984-01-01T23:59:59.000Z

180

Multi-lead heat sink  

DOE Patents [OSTI]

The disclosure relates to a heat sink used to protect integrated circuits from the heat resulting from soldering them to circuit boards. A tubular housing contains a slidable member which engages somewhat inwardly extending connecting rods, each of which is rotatably attached at one end to the bottom of the housing. The other end of each rod is fastened to an expandable coil spring loop. As the member is pushed downward in the housing, its bottom edge engages and forces outward the connecting rods, thereby expanding the spring so that it will fit over an integrated circuit. After the device is in place, the member is slid upward and the spring contracts about the leads of the integrated circuit. Soldering is now conducted and the spring absorbs excess heat therefrom to protect the integrated circuit. The placement steps are repeated in reverse order to remove the heat sink for use again.

Roose, L.D.

1982-08-25T23:59:59.000Z

Note: This page contains sample records for the topic "lead acid model" 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.


181

Multi-lead heat sink  

DOE Patents [OSTI]

The disclosure relates to a heat sink used to protect integrated circuits from the heat resulting from soldering them to circuit boards. A tubular housing contains a slidable member which engages somewhat inwardly extending connecting rods, each of which is rotatably attached at one end to the bottom of the housing. The other end of each rod is fastened to an expandable coil spring loop. As the member is pushed downward in the housing, its bottom edge engages and forces outward the connecting rods, thereby expanding the spring so that it will fit over an integrated circuit. After the device is in place, the member is slid upward and the spring contracts about the leads of the integrated circuit. Soldering is now conducted and the spring absorbs excess heat therefrom to protect the integrated circuit. The placement steps are repeated in reverse order to remove the heat sink for use again. 4 figs.

Roose, L.D.

1984-07-03T23:59:59.000Z

182

Cadmium, lead and mercury exposure in non smoking pregnant women  

SciTech Connect (OSTI)

Recent literature suggests that exposure to low concentrations of heavy metals may affect both maternal and child health. This study aimed to determine the biological heavy metals concentrations of pregnant women as well as environmental and dietary factors that may influence exposure concentrations. One hundred and seventy three pregnant women were recruited from Western Australia, each providing a sample of blood, first morning void urine, residential soil, dust and drinking water samples. Participants also completed a questionnaire which included a food frequency component. All biological and environmental samples were analysed for heavy metals using ICP-MS. Biological and environmental concentrations of lead and mercury were generally low (Median Pb Drinking Water (DW) 0.04 g/L; Pb soil <3.0 g/g; Pb dust 16.5 g/g; Pb blood 3.67 g/L; Pb urine 0.55; g/L Hg DW <0.03; Hg soil <1.0 g/g; Hg dust <1.0 g/g; Hg blood 0.46 g/L; Hg urine <0.40 g/L). Cadmium concentrations were low in environmental samples (Median CdDW 0.02 g/L; Cdsoil <0.30 ug/g; Cddust <0.30) but elevated in urine samples (Median 0.55 g/L, creatinine corrected 0.70 g/g (range <0.27.06 g/g creatinine) compared with other studies of pregnant women. Predictors of increased biological metals concentrations in regression models for blood cadmium were residing in the Great Southern region of Western Australia and not using iron/folic acid supplements and for urinary cadmium was having lower household annual income. However, these factors explained little of the variation in respective biological metals concentrations. The importance of establishing factors that influence low human exposure concentrations is becoming critical in efforts to reduce exposures and hence the potential for adverse health effects. -- Highlights: Biological heavy metals concentrations in women in their 3rd trimester of pregnancy. Exposure assessment including environmental, lifestyle and activity data. Urinary cadmium concentrations were elevated in this group of pregnant women. Blood lead and mercury concentrations were below recommended biological guideline values.

Hinwood, A.L., E-mail: a.hinwood@ecu.edu.au [Centre for Ecosystem Management, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA 6027 (Australia); Callan, A.C.; Ramalingam, M.; Boyce, M. [Centre for Ecosystem Management, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA 6027 (Australia)] [Centre for Ecosystem Management, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA 6027 (Australia); Heyworth, J. [School Population Health, The University of Western Australia, 35 Stirling Highway Crawley, WA 6009 (Australia)] [School Population Health, The University of Western Australia, 35 Stirling Highway Crawley, WA 6009 (Australia); McCafferty, P. [ChemCentre, PO Box 1250, Bentley, WA 6983 (Australia)] [ChemCentre, PO Box 1250, Bentley, WA 6983 (Australia); Odland, J.. [Department of Community Medicine, University of Troms, N-9037 Troms (Norway)] [Department of Community Medicine, University of Troms, N-9037 Troms (Norway)

2013-10-15T23:59:59.000Z

183

1996 Oxford University Press 47094718Nucleic Acids Research, 1996, Vol. 24, No. 23 Logitlinear models for the prediction of splice sites in  

E-Print Network [OSTI]

1996 Oxford University Press 47094718Nucleic Acids Research, 1996, Vol. 24, No. 23 Logitlinear the degree of fit to some average signal pattern around known splice sites in a learning set (e.g., 3

Brendel, Volker

184

USE OF AN EQUILIBRIUM MODEL TO FORECAST DISSOLUTION EFFECTIVENESS, SAFETY IMPACTS, AND DOWNSTREAM PROCESSABILITY FROM OXALIC ACID AIDED SLUDGE REMOVAL IN SAVANNAH RIVER SITE HIGH LEVEL WASTE TANKS 1-15  

SciTech Connect (OSTI)

This thesis details a graduate research effort written to fulfill the Magister of Technologiae in Chemical Engineering requirements at the University of South Africa. The research evaluates the ability of equilibrium based software to forecast dissolution, evaluate safety impacts, and determine downstream processability changes associated with using oxalic acid solutions to dissolve sludge heels in Savannah River Site High Level Waste (HLW) Tanks 1-15. First, a dissolution model is constructed and validated. Coupled with a model, a material balance determines the fate of hypothetical worst-case sludge in the treatment and neutralization tanks during each chemical adjustment. Although sludge is dissolved, after neutralization more is created within HLW. An energy balance determines overpressurization and overheating to be unlikely. Corrosion induced hydrogen may overwhelm the purge ventilation. Limiting the heel volume treated/acid added and processing the solids through vitrification is preferred and should not significantly increase the number of glass canisters.

KETUSKY, EDWARD

2005-10-31T23:59:59.000Z

185

Impact of Fe (III) on the Performance of Viscoelastic Surfactant-Based Acids  

E-Print Network [OSTI]

Viscoelastic surfactant (VES)-based acid systems have been used successfully in matrix and acid fracturing treatments. However, the existence of Fe (III) as a contaminant in such systems may lead to many problems, due to interactions between VES...

Shu, Yi

2013-08-02T23:59:59.000Z

186

Lead Safety Awareness This Bulletin provides information on the safe handling of lead  

E-Print Network [OSTI]

. CONTROLLING THE HAZARDS: LEAD STORAGE · Use inventory tracking to facilitate proper lead storage and to keep lead inventories to a minimum. · Store lead in containers or covered in specially designed areas. · Routinely monitor lead inventories to check for lead dust contamination. GENERAL GOOD WORK PRACTICES · When

187

Students Lead the Way at the White House Science Fair | Department...  

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

Students Lead the Way at the White House Science Fair Students Lead the Way at the White House Science Fair October 18, 2010 - 6:55pm Addthis The President looks at a model solar...

188

E-Print Network 3.0 - acids cells humans Sample Search Results  

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

the stomach... the effects of PPI action on acid levels 36. Our original gastric acid secretion model tracks four cell... popula- tions in the stomach considered critical for...

189

acid d13c analysis: Topics by E-print Network  

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

Websites Summary: itself against acidification and is used to monitor the effect of acid rain on watersheds. From 1993MASTERS REPORT ANALYSIS AND MODELING OF ACID...

190

E-Print Network 3.0 - acid-induced neuronal death Sample Search...  

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

and frequently leads to widespread neuronal death (1). The mechanisms of self- sustaining SE... kainic acid-induced seizure activity (10) and ischemic injury (11) in rat...

191

Children and lead: new findings and concerns  

SciTech Connect (OSTI)

An editorial dealing with lead in the environment and its health risks to children is presented. Young children are particularly vulnerable to lead exposure. Through hand-to-mouth activities, such as thumb sucking, nail biting, or eating with dirty hands, lead in house dust and garden soil readily enters their bodies. Children with pica are exposed to more lead because they eat such items as paint chips, broken plaster, and dirt. Moreover, intestinal lead absorption is greater in children than in adults. The author recommends a concerted effort to reduce undue lead absorption in children. (JMT)

Lin-Fu, J.S.

1982-09-02T23:59:59.000Z

192

Dose estimates in a loss of lead shielding truck accident.  

SciTech Connect (OSTI)

The radiological transportation risk & consequence program, RADTRAN, has recently added an updated loss of lead shielding (LOS) model to it most recent version, RADTRAN 6.0. The LOS model was used to determine dose estimates to first-responders during a spent nuclear fuel transportation accident. Results varied according to the following: type of accident scenario, percent of lead slump, distance to shipment, and time spent in the area. This document presents a method of creating dose estimates for first-responders using RADTRAN with potential accident scenarios. This may be of particular interest in the event of high speed accidents or fires involving cask punctures.

Dennis, Matthew L.; Osborn, Douglas M.; Weiner, Ruth F.; Heames, Terence John (Alion Science & Technology Albuquerque, NM)

2009-08-01T23:59:59.000Z

193

Australia and New Zealand Coordinating Lead Authors  

E-Print Network [OSTI]

11 Australia and New Zealand Coordinating Lead Authors: Kevin Hennessy (Australia), Blair Fitzharris (New Zealand) Lead Authors: Bryson C. Bates (Australia), Nick Harvey (Australia), Mark Howden (Australia), Lesley Hughes (Australia), Jim Salinger (New Zealand), Richard Warrick (New Zealand

Green, Donna

194

Reproductive toxicity of low-level lead exposure in men  

SciTech Connect (OSTI)

Parameters of semen quality, seminal plasma indicators of secretory function of the prostate and seminal vesicles, sex hormones in serum, and biomarkers of lead, cadmium, copper, zinc, and selenium body burden were measured in 240 Croatian men 19-52 years of age. The subjects had no occupational exposure to metals and no known other reasons suspected of influencing male reproductive function or metal metabolism. After adjusting for age, smoking, alcohol, blood cadmium, and serum copper, zinc, and selenium by multiple regression, significant (P<0.05) associations of blood lead (BPb), {delta}-aminolevulinic acid dehydratase (ALAD), and/or erythrocyte protoporphyrin (EP) with reproductive parameters indicated a lead-related increase in immature sperm concentration, in percentages of pathologic sperm, wide sperm, round sperm, and short sperm, in serum levels of testosterone and estradiol, and a decrease in seminal plasma zinc and in serum prolactin. These reproductive effects were observed at low-level lead exposure (BPb median 49 {mu}g/L, range 11-149 {mu}g/L in the 240 subjects) common for general populations worldwide. The observed significant synergistic effect of BPb and blood cadmium on increasing serum testosterone, and additive effect of a decrease in serum selenium on increasing serum testosterone, may have implications on the initiation and development of prostate cancer because testosterone augments the progress of prostate cancer in its early stages.

Telisman, Spomenka [Institute for Medical Research and Occupational Health, Ksaverska cesta 2, P.O. Box 291, HR-10001 Zagreb (Croatia)], E-mail: telisman@imi.hr; Colak, Bozo [University Clinic for Diabetes, Endocrinology and Metabolic Diseases 'Vuk Vrhovac', Zagreb (Croatia); Pizent, Alica; Jurasovic, Jasna [Institute for Medical Research and Occupational Health, Ksaverska cesta 2, P.O. Box 291, HR-10001 Zagreb (Croatia); Cvitkovic, Petar [University Clinic for Diabetes, Endocrinology and Metabolic Diseases 'Vuk Vrhovac', Zagreb (Croatia)

2007-10-15T23:59:59.000Z

195

Development of alternatives to lead-bearing solders  

SciTech Connect (OSTI)

Soldering technology, using tin-lead alloys has had a significant role in the packaging of highly functional, low cost electronic devices. The elimination of lead from all manufactured products, whether through legislation or tax incentives, will impact the electronics community which uses lead-containing solders. In response to these proposed measures, the National Center for Manufacturing Sciences has established a multi-year program involving participants from industry, academia, and the national laboratories with the objective to identify potential replacements for lead-bearing solders. Selection of candidate alloys is based upon the analysis of materials properties, manufacturability, modeling codes for reliability prediction, as well as toxicological properties and resource availability, data developed in the program.

Vianco, P.T. [Sandia National Labs., Albuquerque, NM (United States)

1993-07-01T23:59:59.000Z

196

Experimental validation of lead cross sections for scale and MCNP  

SciTech Connect (OSTI)

Moving spent nuclear fuel between facilities often requires the use of lead-shielded casks. Criticality safety that is based upon calculations requires experimental validation of the fuel matrix and lead cross section libraries. A series of critical experiments using a high-enriched uranium-aluminum fuel element with a variety of reflectors, including lead, has been identified. Twenty-one configurations were evaluated in this study. The fuel element was modelled for KENO V.a and MCNP 4a using various cross section sets. The experiments addressed in this report can be used to validate lead-reflected calculations. Factors influencing calculated k{sub eff} which require further study include diameters of styrofoam inserts and homogenization.

Henrikson, D.J.

1995-12-01T23:59:59.000Z

197

Deployment Support Leading to Implementation  

SciTech Connect (OSTI)

The following paragraphs summarize the progress of each research project funded under the WVU Cooperative Agreement during the third quarter of 1997 (July - September 1997). The projects are arranged according to their 1997 WVU task number. WVU Focus Area 1.0: Subsurface Contaminants, Containment and Remediation Task No. 1.1: Project discontinued. Task No. 1.2: Development of Standard Test Protocols and Barrier Design Models for Desiccation Barriers (K. Amininan & S. Ameri): A number of experiments were preformed this period to evaluate the ability of the dried sand-packs to act as a barrier to liquids. Water infiltration tests were done with a constant head, dispersing 80 ml of water, and by adding water in small increments. Results indicate that when the water is spilled over the sand-pack, it has the tendency to channel through the sand-pack, significantly reducing the capacity of the dried zone to retain liquid contaminants. This appears to be largely influenced by particle size. As the particle size is reduced, the capillary forces spread the water and prevent/delay channels from forming. The measured permeability values were in agreement with those measured with air. The water retention capacity and capillary rise were largely influenced by time and showed no sensitivity to channeling. The water retention capacity tests suggest the sand-packs can retain more water than the expected. Two sets of water infiltration and drying experiments were designed to evaluate the CAB?s ability to prevent spills from spreading. Ten ml of water was injected every 20 minutes and 80 ml of water was added at one time. When injected slowly, results showed the drying process to be similar to the original drying process. The second set indicted the drying process follows a slowly declining drying with no break through. Results also suggested that air flow through the sand-pack can remove water infiltration. The air flow appeared to prevent any water channeling and thus should cause lateral distribution of the water. The large tank that accommodates the sand bed and the necessary plumbing to simulate various well configurations was received. The monitoring equipment and the sensors are currently being installed. The experimental procedures for Phase II experiments are under further investigation and will be initiated upon installation of CATC and assembly of the monitoring system. Due to insufficient operating funds, the large scale experiments will not be done this year. Task No. 1.3: Technical Support - Development of Standard Test Protocols and Barrier Design Models for In Situ Formed Barriers (B. Overbey & D. Locke, BDM Federal): The Operating Permit Renewal Request for bench scale operations in the FETC B-17 building was submitted to the FETC Lab Safety Committee for approval on 8/14/97. A review of the revised NEPA documents prepared last year indicates that these documents are still applicable for the current work. The initial design and specifications for the CATC vessel were prepared. Construction of the CATC was initiated in early July, the vessel was received August 15, 1997, and on-site work was completed this quarter.

E. E. Cook

1997-10-01T23:59:59.000Z

198

E-Print Network 3.0 - alkylaminocarbene ligand leads Sample Search...  

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

Site Summary: . This leads us to believe that modeling of ligand interac- tions with bulk solvent is probably... Predicting Ligand Binding Affinity with Alchemical Free Energy...

199

An Instability Leading to Failure of Polyethylene in Uniaxial Creep  

E-Print Network [OSTI]

An Instability Leading to Failure of Polyethylene in Uniaxial Creep L. J. ZAPAS and J. M. CRISSMAN model, a point of instability is pre- dicted for the uniaxial creep of high density polyethylene. From dead load experiments it has been found that the instabil- ity occurs for linear -polyethylene

200

Cool horizons lead to information loss  

E-Print Network [OSTI]

There are two evidences for information loss during black hole evaporation: (i) a pure state evolves to a mixed state and (ii) the map from the initial state to final state is non-invertible. Any proposed resolution of the information paradox must address both these issues. The firewall argument focuses only on the first and this leads to order one deviations from the Unruh vacuum for maximally entangled black holes. The nature of the argument does not extend to black holes in pure states. It was shown by Avery, Puhm and the author that requiring the initial state to final state map to be invertible mandates structure at the horizon even for pure states. The proof works if black holes can be formed in generic states and in this paper we show that this is indeed the case. We also demonstrate how models proposed by Susskind, Papadodimas et al. and Maldacena et al. end up making the initial to final state map non-invertible and thus make the horizon "cool" at the cost of unitarity.

Borun D. Chowdhury

2013-07-29T23:59:59.000Z

Note: This page contains sample records for the topic "lead acid model" 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

Activated alumina adsorption of trace amounts of chromium and lead from wastewater  

E-Print Network [OSTI]

the concentration in the initial solution. Data for 100 90 80 70 60 %R 50 20 g/& 10 lr B rr / h. / 0. 5 u, 0. 25 g/1 , + j Pa , I f, ' / '~f/ 30 20 10 pH 10 Figure 3 ? Percent removal of lead by activated alumina for various pH values 28 100...2 for lead model Pb-2 48 15 Q vs X3 for lead model Pb-3 40 16 17 Q vs X4 for lead model Pb-4 Q vs X5 for lead model Pb-5 50 51 18 Investigation of relationship of pH for model Pb-1 54 19 Investigation of relationship of pH for model Pb-4 20...

Dennis, Reid L

1984-01-01T23:59:59.000Z

202

Energy Policy 29 (2001) 11331143 Ethanol as a lead replacement: phasing out leaded gasoline in Africa  

E-Print Network [OSTI]

Energy Policy 29 (2001) 1133­1143 Ethanol as a lead replacement: phasing out leaded gasoline cost of lead additives and of gasoline, and the falling cost of ethanol and sugarcane, have created sugarcane is produced in Africa to replace all the lead used in African gasoline; this would require Africa

Thomas, Valerie

203

Procurement Standards Lead-by-Example Resources  

Broader source: Energy.gov [DOE]

State and local governments can lead by example by promoting energy efficiency programs and policies for public facilities, equipment, and government operations.

204

Energy Efficiency Lead-by-Example Resources  

Broader source: Energy.gov [DOE]

State and local governments can lead by example by promoting energy efficiency programs and policies for public facilities, equipment, and government operations.

205

Lead by Example with Smart Energy Management  

SciTech Connect (OSTI)

The Lead by Example with Smart Energy Management brochure describes FEMP's services, namely financing and acquisition support, technical assistance and policy, and outreach and coordination.

Not Available

2006-07-01T23:59:59.000Z

206

Imnaha Subbasin Inventory Subbasin Lead Entity  

E-Print Network [OSTI]

Imnaha Subbasin Inventory May 2004 Written by Ecovista Subbasin Lead Entity: Nez Perce Tribe.......................................................................... 15 List of Tables TABLE 1. ACRONYMS USED IN THE IMNAHA SUBBASIN INVENTORY

207

Access of Cellulase to Cellulose and Lignin for Poplar Solids Produced by Leading Pretreatment Technologies  

E-Print Network [OSTI]

Access of Cellulase to Cellulose and Lignin for Poplar Solids Produced by Leading Pretreatment and adsorption of b-glucosidase for lignin left after enzymatic digestion of the solids from these pretreatments effectiveness was determined. Furthermore, Avicel hydrolysis inhibition by enzymatic and acid lignin of poplar

California at Riverside, University of

208

acid binding protein: Topics by E-print Network  

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

Richardson, Charles C. 17 Acidic pH Changes Receptor Binding Specificity of Helicobacter pylori: a Binary Adhesion Model in which Surface Heat Shock (Stress) Proteins...

209

ascorbic acid oxidation: Topics by E-print Network  

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

regulation of L Clarke, Steven 88 Co-oxidation in supercritical water : methylphosphonic acid-ethanol and ammonia-ethanol model systems MIT - DSpace Summary: Supercritical water...

210

LEAD COMMISSIONER REPORT RENEWABLE POWER IN  

E-Print Network [OSTI]

, Public Interest Energy Research Program, Public Utilities Regulatory Policies Act, Renewable Energy1502011002LCFREV1 #12;CALIFORNIA ENERGY COMMISSION 2011 INTEGRATED ENERGY POLICY REPORT LEAD COMMISSIONER of the 2011 Integrated Energy Policy Report Lead Commissioner. It does not necessarily represent the views

211

LEAD Academy *Leadership in Educational Administration Academy  

E-Print Network [OSTI]

LEAD Academy *Leadership in Educational Administration Academy Educational Administration for overnight accommodations if desired A time intensive component of the academy will occur on the UNO campus of practitioners will serve to facilitate the LEAD Academy, developing mentor/mentee networks that will continue

Farritor, Shane

212

EPA Lead Safety for Renovation, Repair and  

E-Print Network [OSTI]

than 20 f lead-based paint is dis- e exterior. Window replace- onsidered minor mainte- air. If you're of thousands of dollars in fines and put yourself and your company at risk of po- tential lawsuits. 2. ProtectEPA Lead Safety for Renovation, Repair and Painting (RRP) Course Certified Renovators Class

Tennessee, University of

213

Fan-fold shielded electrical leads  

DOE Patents [OSTI]

Disclosed are fan-folded electrical leads made from copper cladded Kapton, for example, with the copper cladding on one side serving as a ground plane and the copper cladding on the other side being etched to form the leads. The Kapton is fan folded with the leads located at the bottom of the fan-folds. Electrical connections are made by partially opening the folds of the fan and soldering, for example, the connections directly to the ground plane and/or the lead. The fan folded arrangement produces a number of advantages, such as electrically shielding the leads from the environment, is totally non-magnetic, and has a very low thermal conductivity, while being easy to fabricate. 3 figs.

Rohatgi, R.R.; Cowan, T.E.

1996-06-11T23:59:59.000Z

214

Fan-fold shielded electrical leads  

DOE Patents [OSTI]

Fan-folded electrical leads made from copper cladded Kapton, for example, with the copper cladding on one side serving as a ground plane and the copper cladding on the other side being etched to form the leads. The Kapton is fan folded with the leads located at the bottom of the fan-folds. Electrical connections are made by partially opening the folds of the fan and soldering, for example, the connections directly to the ground plane and/or the lead. The fan folded arrangement produces a number of advantages, such as electrically shielding the leads from the environment, is totally non-magnetic, and has a very low thermal conductivity, while being easy to fabricate.

Rohatgi, Rajeev R. (Mountain View, CA); Cowan, Thomas E. (Livermore, CA)

1996-01-01T23:59:59.000Z

215

Plant fatty acid hydroxylases  

DOE Patents [OSTI]

This invention relates to plant fatty acyl hydroxylases. Methods to use conserved amino acid or nucleotide sequences to obtain plant fatty acyl hydroxylases are described. Also described is the use of cDNA clones encoding a plant hydroxylase to produce a family of hydroxylated fatty acids in transgenic plants. In addition, the use of genes encoding fatty acid hydroxylases or desaturases to alter the level of lipid fatty acid unsaturation in transgenic plants is described.

Somerville, Chris (Portola Valley, CA); Broun, Pierre (Burlingame, CA); van de Loo, Frank (Lexington, KY)

2001-01-01T23:59:59.000Z

216

CORROSION OF LEAD SHIELDING IN NUCLEAR MATERIALS PACKAGES  

SciTech Connect (OSTI)

Inspection of United States-Department of Energy (US-DOE) model 9975 nuclear materials shipping package revealed corrosion of the lead shielding that was induced by off-gas constituents from organic components in the package. Experiments were performed to determine the corrosion rate of lead when exposed to off-gas or degradation products of these organic materials. The results showed that the room temperature vulcanizing (RTV) sealant was the most corrosive organic species used in the construction of the packaging, followed by polyvinyl acetate (PVAc) glue. Fiberboard material, also used in the construction of the packaging induced corrosion to a much lesser extent than the PVAc glue and RTV sealant, and only in the presence of condensed water. The results indicated faster corrosion at temperatures higher than ambient and with condensed water. In light of these corrosion mechanisms, the lead shielding was sheathed in a stainless steel liner to mitigate against corrosion.

Subramanian, K; Kerry Dunn, K; Joseph Murphy, J

2008-07-18T23:59:59.000Z

217

Cleavage of nucleic acids  

DOE Patents [OSTI]

The present invention relates to means for the detection and characterization of nucleic acid sequences, as well as variations in nucleic acid sequences. The present invention also relates to methods for forming a nucleic acid cleavage structure on a target sequence and cleaving the nucleic acid cleavage structure in a site-specific manner. The structure-specific nuclease activity of a variety of enzymes is used to cleave the target-dependent cleavage structure, thereby indicating the presence of specific nucleic acid sequences or specific variations thereof.

Prudent, James R. (Madison, WI); Hall, Jeff G. (Waunakee, WI); Lyamichev, Victor I. (Madison, WI); Brow; Mary Ann D. (Madison, WI); Dahlberg, James E. (Madison, WI)

2010-11-09T23:59:59.000Z

218

Cleavage of nucleic acids  

DOE Patents [OSTI]

The present invention relates to means for the detection and characterization of nucleic acid sequences, as well as variations in nucleic acid sequences. The present invention also relates to methods for forming a nucleic acid cleavage structure on a target sequence and cleaving the nucleic acid cleavage structure in a site-specific manner. The structure-specific nuclease activity of a variety of enzymes is used to cleave the target-dependent cleavage structure, thereby indicating the presence of specific nucleic acid sequences or specific variations thereof.

Prudent, James R. (Madison, WI); Hall, Jeff G. (Madison, WI); Lyamichev, Victor L. (Madison, WI); Brow, Mary Ann D. (Madison, WI); Dahlberg, James E. (Madison, WI)

2007-12-11T23:59:59.000Z

219

Nucleic acid detection compositions  

DOE Patents [OSTI]

The present invention relates to means for the detection and characterization of nucleic acid sequences, as well as variations in nucleic acid sequences. The present invention also relates to methods for forming a nucleic acid cleavage structure on a target sequence and cleaving the nucleic acid cleavage structure in a site-specific manner. The structure-specific nuclease activity of a variety of enzymes is used to cleave the target-dependent cleavage structure, thereby indicating the presence of specific nucleic acid sequences or specific variations thereof.

Prudent, James R. (Madison, WI); Hall, Jeff G. (Madison, WI); Lyamichev, Victor I. (Madison, WI); Brow, Mary Ann (Madison, WI); Dahlberg, James L. (Madison, WI)

2008-08-05T23:59:59.000Z

220

Sustainability Peer Educator Group Lead Positions Position: Sustainability Peer Educators Group Lead  

E-Print Network [OSTI]

Sustainability Peer Educator Group Lead Positions Position: Sustainability Peer Educators Group times) Term of position: September 2013 ­ April 2014 Position Summary: Working with the Sustainability Project Coordinator, the Sustainability Peer Educator Group Leads will be responsible

Boonstra, Rudy

Note: This page contains sample records for the topic "lead acid model" 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

Process for the preparation of lactic acid and glyceric acid  

DOE Patents [OSTI]

Hexose and pentose monosaccharides are degraded to lactic acid and glyceric acid in an aqueous solution in the presence of an excess of a strongly anionic exchange resin, such as AMBERLITE IRN78 and AMBERLITE IRA400. The glyceric acid and lactic acid can be separated from the aqueous solution. Lactic acid and glyceric acid are staple articles of commerce.

Jackson, James E [Haslett, MI; Miller, Dennis J [Okemos, MI; Marincean, Simona [Dewitt, MI

2008-12-02T23:59:59.000Z

222

Coordination chemistry of two heavy metals: I, Ligand preferences in lead(II) complexation, toward the development of therapeutic agents for lead poisoning: II, Plutonium solubility and speciation relevant to the environment  

SciTech Connect (OSTI)

The coordination chemistry and solution behavior of the toxic ions lead(II) and plutonium(IV, V, VI) have been investigated. The ligand pK{sub a}s and ligand-lead(II) stability constants of one hydroxamic acid and four thiohydroaxamic acids were determined. Solution thermodynamic results indicate that thiohydroxamic acids are more acidic and slightly better lead chelators than hydroxamates, e.g., N-methylthioaceto-hydroxamic acid, pK{sub a} = 5.94, log{beta}{sub 120} = 10.92; acetohydroxamic acid, pK{sub a} = 9.34, log{beta}{sub l20} = 9.52. The syntheses of lead complexes of two bulky hydroxamate ligands are presented. The X-ray crystal structures show the lead hydroxamates are di-bridged dimers with irregular five-coordinate geometry about the metal atom and a stereochemically active lone pair of electrons. Molecular orbital calculations of a lead hydroxamate and a highly symmetric pseudo octahedral lead complex were performed. The thermodynamic stability of plutonium(IV) complexes of the siderophore, desferrioxamine B (DFO), and two octadentate derivatives of DFO were investigated using competition spectrophotometric titrations. The stability constant measured for the plutonium(IV) complex of DFO-methylterephthalamide is log{beta}{sub 110} = 41.7. The solubility limited speciation of {sup 242}Pu as a function of time in near neutral carbonate solution was measured. Individual solutions of plutonium in a single oxidation state were added to individual solutions at pH = 6.0, T = 30.0, 1.93 mM dissolved carbonate, and sampled over intervals up to 150 days. Plutonium solubility was measured, and speciation was investigated using laser photoacoustic spectroscopy and chemical methods.

Neu, M.P. [Lawrence Berkeley Lab., CA (United States)

1993-11-01T23:59:59.000Z

223

STANDARD OPERATING PROCEDURE ACIDS CONTAINING PHOSPHOROUS  

E-Print Network [OSTI]

12.1 STANDARD OPERATING PROCEDURE for ACIDS CONTAINING PHOSPHOROUS Location(s): ___________________________________________________ Chemical(s): Hypophosphorous acid, methylphosphonic acid, phosphonic acid, phosphoric acid, phosphorous

Pawlowski, Wojtek

224

INEEL Lead Recycling in a Moratorium Environment  

SciTech Connect (OSTI)

Since 1999, the Idaho National Engineering and Environmental Laboratory (INEEL) Lead Project successfully recycled over 700,000 pounds of excess INEEL lead to the private sector. On February 14, 2000, the Secretary of Energy, Bill Richardson, formalized the January 12, 2000, moratorium on recycling radioactive scrap metal that prevented the unrestricted release of recycled scrap metals to the private sector. This moratorium created significant problems for the INEEL lead recycling program and associated plans; however, through the cooperative efforts of the INEEL and Idaho State University as well as innovative planning and creative thinking the recycling issues were resolved. This collaboration has recycled over 160,000 pounds of excess lead to Idaho State University with a cost savings of over $.5M.

Kooda, K. E.; Galloway, K.; McCray, C. W.; Aitken, D. W.

2003-02-26T23:59:59.000Z

225

INEEL Lead Recycling in a Moratorium Environment  

SciTech Connect (OSTI)

Since 1999, the Idaho National Engineering and Environmental Laboratory (INEEL) Lead Project successfully recycled over 700,000 pounds of excess INEEL lead to the private sector. On February 14, 2000, the Secretary of Energy, Bill Richardson, formalized the January 12, 2000, moratorium on recycling radioactive scrap metal that prevented the unrestricted release of recycled scrap metals to the private sector. This moratorium created significant problems for the INEEL lead recycling program and associated plans; however, through the cooperative efforts of the INEEL and Idaho State University as well as innovative planning and creative thinking the recycling issues were resolved. This collaboration has recycled over 160,000 pounds of excess lead to Idaho State University with a cost savings of over $.5M.

Kooda, Kevin Evan; Mc Cray, Casey William; Aitken, Darren William; Galloway, Kelly

2003-02-01T23:59:59.000Z

226

Imnaha Subbasin Management Plan Subbasin Lead Entity  

E-Print Network [OSTI]

Imnaha Subbasin Management Plan May 2004 Written by Ecovista Subbasin Lead Entity: Nez Perce Tribe....................................................................................... 6 1.2.4 Ecovista Website Information.......................................................................... 59 4.3 Terrestrial Data and Information Gaps

227

Saturnine curse: a history of lead poisoning  

SciTech Connect (OSTI)

Over the past ten years there has been increasing recognition of subacute and chronic lead poisoning and a growing awareness of its pathophysiology and clinical effects. Besides the classic manifestations of abdominal colic, seizures, and anemia progressing to gout, renal disease, and neuropathy, more subtle manifestations are now being increasingly recognized, such as the development of hypertension, neurobehavioral changes, reproductive and endocrine abnormalities, a possible role in carcinogenesis, and an overall increase in morbidity and mortality. Lead was one of the seven metals of antiquity, and it has accompanied the Eurasian and American civilizations since their beginnings. Lead is an extremely pernicious metal with a multitude of adverse effects. The recurring nature of lead poisoning throughout the development of civilization can truly be referred to as the saturnine curse. 16 references.

Green, D.W.

1985-01-01T23:59:59.000Z

228

Electrostatic precipitation of condensed acid mist  

SciTech Connect (OSTI)

Southern Research Institute is developing a compact, wet electrostatic precipitator (WESP) to control acid mist missions from high-sulfur coal combustion. The WESP is being developed as a retrofit technology for existing coal-fired power plants, particularly those equipped with wet flue gas desulfurization (FGD) scrubbers. Acid mist emissions can be a significant problem at these facilities because the sulfuric acid vapor in the flue gas is converted to a very fine mist that is not collected in the scrubber system. Conventional mist eliminators are not adequate in this application due to the very fine size of the mist droplets. The potential for corrosion also makes it difficult to use a fabric filter or a conventional, dry ESP in this application. Therefore, this research project has been structured around the development of a compact WESP that could be retrofit on top of an existing scrubber or within an existing flue gas duct. This paper describes the development and testing of a prototype WESP for the utility acid mist application. Testing was conducted with combustion of sulfur-doped gas to simulate the acid mist alone, and with a combination of coal and sulfur-doped gas to simulate the mixture of acid mist and fly ash downstream from a scrubber. The performance of the WESP test unit was modeled using two different cylindrical-geometry computer models: a current-seeking'' model and a current-specific'' model. 8 refs., 15 figs., 7 tabs.

Dahlin, R.S.

1989-11-01T23:59:59.000Z

229

Microorganisms for producing organic acids  

DOE Patents [OSTI]

Organic acid-producing microorganisms and methods of using same. The organic acid-producing microorganisms comprise modifications that reduce or ablate AcsA activity or AcsA homolog activity. The modifications increase tolerance of the microorganisms to such organic acids as 3-hydroxypropionic acid, acrylic acid, propionic acid, lactic acid, and others. Further modifications to the microorganisms increase production of such organic acids as 3-hydroxypropionic acid, lactate, and others. Methods of producing such organic acids as 3-hydroxypropionic acid, lactate, and others with the modified microorganisms are provided. Methods of using acsA or homologs thereof as counter-selectable markers are also provided.

Pfleger, Brian Frederick; Begemann, Matthew Brett

2014-09-30T23:59:59.000Z

230

Liberalization in the Water Sector: Three leading models.  

E-Print Network [OSTI]

and the pervasive changes in other infrastructure sectors, one must note the remarkably slow pace of reform in the water sector. Moreover, the most systematic reforms until now have been implemented in developed . By reform, we mean substantial changes in decision rights, changes that modify the governance and in many

Boyer, Edmond

231

Lead Sorption onto Ferrihydrite. 2. Surface Complexation Modeling  

E-Print Network [OSTI]

of Plant and Soil Sciences, University of Delaware, Newark, Delaware 19717, and DuPont Engineering Technology, Brandywine Building, Wilmington, Delaware 19898 Few studies have combined molecular- and macro of existing SCMs to predict Pb(II) sorption onto 2-line ferrihydrite over a wide range of conditions seems

Sparks, Donald L.

232

Information from leading neutrons at HERA  

E-Print Network [OSTI]

In principle, leading neutrons produced in photoproduction and deep-inelastic scattering at HERA have the potential to determine the pion structure function, the neutron absorptive cross section and the form of the pion flux. To explore this potential we compare theoretical predictions for the x_L and p_t spectra of leading neutrons, and the Q^2 dependence of the cross section, with the existing ZEUS data.

V. A. Khoze; A. D. Martin; M. G. Ryskin

2006-06-20T23:59:59.000Z

233

Separation Nanotechnology of Diethylenetriaminepentaacetic Acid...  

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

Nanotechnology of Diethylenetriaminepentaacetic Acid Bonded Magnetic Nanoparticles for Spent Nuclear Fuel. Separation Nanotechnology of Diethylenetriaminepentaacetic Acid Bonded...

234

C-Myc Induced Compensated Cardiac Hypertrophy Increases Free Fatty Acid Utilization for the Citric Acid Cycle  

SciTech Connect (OSTI)

The protooncogene C-Myc (Myc) regulates cardiac hypertrophy. Myc promotes compensated cardiac function, suggesting that the operative mechanisms differ from those leading to heart failure. Myc regulation of substrate metabolism is a reasonable target, as Myc alters metabolism in other tissues. We hypothesize that Myc-induced shifts in substrate utilization signal and promote compensated hypertrophy. We used cardiac specific Myc-inducible C57/BL6 male mice between 4-6 months old that develop hypertrophy with tamoxifen (tam). Isolated working hearts and 13Carbon (13C )-NMR were used to measure function and fractional contributions (Fc) to the citric acid cycle by using perfusate containing 13C-labeled free fatty acids, acetoacetate, lactate, unlabeled glucose and insulin. Studies were performed at pre-hypertrophy (3-days tam, 3dMyc), established hypertrophy (7-days tam, 7dMyc) or vehicle control (cont). Non-transgenic siblings (NTG) received 7-days tam or vehicle to assess drug effect. Hypertrophy was confirmed by echocardiograms and heart weights. Western blots were performed on key metabolic enzymes. Hypertrophy occurred in 7dMyc only. Cardiac function did not differ between groups. Tam alone did not affect substrate contribution in NTG. Substrate utilization was not significantly altered in 3dMyc versus cont. The free fatty acid FC was significantly greater in 7dMyc vs cont with decreased unlabeled Fc, which is predominately exogenous glucose. Free fatty acid flux to the citric acid cycle increased while lactate flux was diminished in 7dMyc compared to cont. Total protein levels of a panel of key metabolic enzymes were unchanged; however total protein O-GlcNAcylation was increased in 7dMyc. Substrate utilization changes did not precede hypertrophy; therefore they are not the primary signal for cardiac growth in this model. Free fatty acid utilization and oxidation increase at established hypertrophy. Understanding the mechanisms whereby this change maintained compensated function could provide useful information for developing metabolic therapies to treat heart failure. The molecular signaling for this metabolic change may occur through O-GlcNAcylation.

Olson, Aaron; Ledee, Dolena; Iwamoto, Kate; Kajimoto, Masaki; O'Kelly-Priddy, Colleen M.; Isern, Nancy G.; Portman, Michael A.

2013-02-01T23:59:59.000Z

235

Lactic acid fermentation of crude sorghum extract  

SciTech Connect (OSTI)

Crude extract from sweet sorghum supplemented with vetch juice was utilized as the carbohydrate source for fermentative production of lactic acid. Fermentation of media containing 7% (w/v) total sugar was completed in 60-80 hours by Lactobacillus plantarum, product yield averaging 85%. Maximum acid production rates were dependent on pH, initial substrate distribution, and concentration, the rates varying from 2 to 5 g/liter per hour. Under limited medium supplementation the lactic acid yield was lowered to 67%. The fermented ammoniated product contained over eight times as much equivalent crude protein (N x 6.25) as the original medium. Unstructured kinetic models were developed for cell growth, lactic acid formation, and substrate consumption in batch fermentation. With the provision of experimentally determined kinetic parameters, the proposed models accurately described the fermentation process. 15 references.

Samuel, W.A.; Lee, Y.Y.; Anthony, W.B.

1980-04-01T23:59:59.000Z

236

Electrostatic control of acid mist emissions  

SciTech Connect (OSTI)

This paper describes a two-phased study of the control of acid mist emissions using a compact, wet electrostatic precipitator (WESP). The goal of the study was to determine the degree of acid mist control that could be achieved when a compact WESP is used to replace or augment the mist eliminators in a flue gas desulfurization (FGD) system. Phase I of the study examined the electrical operation of a lab-scale WESP collecting an acid mist from a coal combustion pilot plant equipped with a spray chamber. The results of this study were used to develop and validate a computer model of the WESP. In Phase II, measurements were made at two utility scrubber installations to determine the loadings of acid mist, fly ash, and scrubber carryover. These measurements were used as input to the model to project the performance of a retrofitted WESP.

Dahlin, R S [Southern Research Inst., Birmingham, AL (United States)] [Southern Research Inst., Birmingham, AL (United States); Brown, T D [USDOE Pittsburgh Energy Technology Center, PA (United States)] [USDOE Pittsburgh Energy Technology Center, PA (United States)

1991-01-01T23:59:59.000Z

237

Synthesis of the entire standard lead electrocardiogram by transformation from a subset of the standard leads  

E-Print Network [OSTI]

in dimensionless form. An individual element r&& in the correlation matrix R will be the correlation coefficient th th between the i and ] variables. The principal components are the eigenvectors of the correlation matrix and the corresponding eigen- values...) and using the other lead as an exploring lead. Another classification is based on the location of the lead, that is, direct, semi-direct, or indirect. A direct lead is placed on the heart, an indirect lead is placed at a body surface location distant from...

Vallhonrat, Juan Braulio

1966-01-01T23:59:59.000Z

238

Development and test evaluation of advanced lead-acid batteries for load-leveling applications  

SciTech Connect (OSTI)

The Exide load-leveling modules have operated reliably to date in all testing at the NBTL, with stable performance exceeding design goals. Much important information on operation and maintenance requirements has been accumulated in over 3 1/2 years of testing to date. It is concluded that these batteries can perform load-leveling applications for electric utilities or utility customers.

Yao, N.P.; Miller, J.F.

1986-01-01T23:59:59.000Z

239

Research, development, and demonstration of lead-acid batteries for electric vehicle propulsion. Annual report, 1980  

SciTech Connect (OSTI)

The progress and status of Eltra's Electric Vehicle Battery Program during FY-80 are presented under five divisional headings: Research on Components and Processes; Development of Cells and Modules for Electric Vehicle Propulsion; Sub-Systems; Pilot Line Production of Electric Vehicle Battery Prototypes; and Program Management.

Not Available

1981-03-01T23:59:59.000Z

240

Research, development, and demonstration of lead-acid batteries for electric vehicle propulsion. Annual report, 1979  

SciTech Connect (OSTI)

The initial phase of work comprises three factorial experiments to evaluate a variety of component combinations. Goals to be met by these batteries include the following: capacity at 3 h discharge, 20 to 30 kWh; specific energy, 40 Wh/kg; specific power, 1000 W/kg for 15 s; cycle life, 800 cycles to 80% depth; price, $50/kWh. The status of the factorial experiments is reviewed. The second phase of work, design of an advanced battery, has the following goals: 30 to 40 kWh; 60 Wh/kg; 150 W/kg for 15 s; 1000 cycles to 80% depth; $40/kWh. It is not yet possible to say whether these goals can be met. Numerous approaches are under study to increase the utilization of battery chemicals. A battery design with no live electrical connection above the battery is being developed. 52 figures, 52 tables. (RWR)

Not Available

1980-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "lead acid model" 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

Competitive sorption of cadmium and lead in acid soils of central Spain  

SciTech Connect (OSTI)

The bioavailability and ultimate fate of heavy metals in the environment are controlled by chemical sorption. To assess competitive sorption of Pb and Cd, batch equilibrium experiments (generating sorption isotherms) and kinetics sorption studies were performed using single and binary metal solutions in surface samples of four soils from central Spain. For comparisons between soils, as well as, single and binary metal solutions, soil chemical processes were characterized using the Langmuir equation, ionic strength, and an empirical power function for kinetic sorption. In addition, soil pH and clay mineralogy were used to explain observed sorption processes. Sorption isotherms were well described by the Langmuir equation and the sorption kinetics were well described by an empirical power function within the reaction times in this study. Soils with higher pH and clay content (characterized by having smectite) had the greatest sorption capacity as estimated by the maximum sorption parameter (Q) of the Langmuir equation. All soils exhibited greater sorption capacity for Pb than Cd and the presence of both metals reduced the tendency for either to be sorbed although Cd sorption was affected to a greater extent than that of Pb. The Langmuir binding strength parameter (k) was always greater for Pb than for Cd. However, these k values tended to increase as a result of the simultaneous presence of both metals, that may indicate competition for sorption sites promoting the retention of both metals on more specific sorption sites. The kinetic experiments showed that Pb sorption is initially faster than Cd sorption from both single and binary solutions although the simultaneous presence of both metals affected the sorption of Cd at short times while only a minor effect was observed on Pb. The estimated exponents of the kinetic function were in all cases smaller for Pb than for Cd, likely due to diffusion processes into micropores or interlayer space of the clay minerals which occurs more readily for Cd than Pb. Finally, the overall sorption processes of Pb and Cd in the smectitic soil with the highest sorption capacity of the studied soils are slower than in the rest of the soils with a clay mineralogy dominated by kaolinite and illite, exhibiting these soils similar sorption rates. These results demonstrate a significant interaction between Pb and Cd sorption when both metals are present that depends on important soil properties such as the clay mineralogy.

Serrano, S.; Garrido, F.; Campbell, C.G.; Garcia-Gonzolez, Maria Teresa

2004-01-30T23:59:59.000Z

242

DOE-SPEC-3019-96; Valve-Regulated Type Lead-Acid Storage Batteries  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists'Montana. DOCUMENTSofDATE M a y 9, 2005 REPLY TO530-98viii4-97NE-STD-1004-928-96

243

DOE-HDBK-1084-95; Primer on Lead-Acid Storage Batteries  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Deliciouscritical_materials_workshop_presentations.pdf MoreProgramofContractto Host016/1-93 JANUARY16,

244

DOE-SPEC-3018-96; Flooded-Type Lead-Acid Storage Batteries  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Deliciouscritical_materials_workshop_presentations.pdf MoreProgramofContracttoAugustSPEC-3018-96 August 1996 DOE

245

Fact Sheet: Carbon-Enhanced Lead-Acid Batteries (October 2012)  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat PumpRecord ofESPCofConstructionofFYOxide

246

Fact Sheet: Carbon-Enhanced Lead-Acid Batteries (October 2012) | Department  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGYWomentheATLANTA, GA5 &ofDepartment of Energy On November 5, 2008, the|2013) |of

247

AVTA: 2010 Honda Civic HEV with Experimental Ultra Lead Acid Battery  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartment of Energy 601 High26-OPAM63-OPAMGuidanceAVTA …Ford FusionTesting

248

A Study of Lead-Acid Battery Efficiency Near Top-of-Charge  

Office of Scientific and Technical Information (OSTI)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinan antagonist Journal Article: Crystal structureComposite JC-118794 PREPRINTWillisHormetic0123RD MIAMIAA

249

Thermoforming plastic in lead shield construction  

SciTech Connect (OSTI)

Radiation treatments using low energy X-rays or electrons frequently require a final field defining shield to be placed on the patient's skin. A custom made lead cut-out is used to provide a close fit to a particular patient's surface contours. We have developed a procedure which utilizes POLYFORM thermoplastic to obtain a negative mold of the patient instead of the traditional plaster bandage or dental impression gel. The Polyform is softened in warm water, molded carefully over the patient's surface, and is removed when set or hardened, usually within five minutes. Then lead sheet cut-outs can be formed within this negative. For shielding cut-outs requiring thicker lead sheet, a positive is made from dental stone using this Polyform negative. We have found this procedure to be neat, fast and comfortable for both patient and the dosimetrist.

Abrahams, M.E.; Chow, C.H.; Loyd, M.D. (Univ. of Texas Medical Branch, Galveston (USA))

1989-09-01T23:59:59.000Z

250

Reversible Acid Gas Capture  

ScienceCinema (OSTI)

Pacific Northwest National Laboratory scientist David Heldebrant demonstrates how a new process called reversible acid gas capture works to pull carbon dioxide out of power plant emissions.

Dave Heldebrant

2012-12-31T23:59:59.000Z

251

EMSL - Nuclei acid structure  

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

conditions showed a temporary pH decrease, with a concomitant increase in formic acid during exponential growth. Fermentation experiments performed outside of the magnet...

252

Nuclei acid structure | EMSL  

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

conditions showed a temporary pH decrease, with a concomitant increase in formic acid during exponential growth. Fermentation experiments performed outside of the magnet...

253

Collective aspects of protein folding illustrated by a toy model  

SciTech Connect (OSTI)

A simple toy model for polypeptides serves as a testbed to illuminate some nonlocal, or collective, aspects of protein folding phenomena. The model is two dimensional and has only two amino acids, but involves a continuous range of backbone bend angles. Global potential energy minima and their folding structures have been determined for leading members of two special and contrasting polypeptide sequences, center doped and Fibonacci, named descriptively for their primary structures. The results display the presence of spontaneous symmetry breaking, elastic strain, and substantial conformational variation for specific embedded amino acid strings. We conclude that collective variables generated by the primary amino acid structure may be required for fully effective protein folding predictors, including those based on neural networks.

Stillinger, F.H. [AT& T Bell Laboratories, Murray Hill, New Jersey 07974 (United States)] [AT& T Bell Laboratories, Murray Hill, New Jersey 07974 (United States); Head-Gordon, T. [Life Sciences Division, Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720 (United States)] [Life Sciences Division, Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720 (United States)

1995-09-01T23:59:59.000Z

254

Leading Edge Bacterial Genomics and Pathogen Evolution  

E-Print Network [OSTI]

Leading Edge Review Bacterial Genomics and Pathogen Evolution David M. Raskin,1 Rekha Seshadri,2 Medical School, Boston, MA 02115, USA 2 The Institute for Genomic Research, 9712 Medical Center Drive.02.002 The availability of hundreds of bacterial genome sequences has altered the study of bacte- rial pathogenesis

Mekalanos, John

255

Mechanisms leading to electrically isolated cell  

E-Print Network [OSTI]

Mechanisms leading to electrically isolated cell parts and power loss under mechanical loads F cracks are omnipresent #12;Power loss by cell cracks Humidity freeze cycle 0 50 100 150 200 Powerloss, isolated cell area Crack mode: #12;Power loss after mechanical load Some solar cells with mode A cracks

256

Analyzing lead information from SAR images  

E-Print Network [OSTI]

means of gathering important information about the sea ice cover and its climatic influence, This paper describes: 1) a method for extracting and analyzing leads from ERS-1 synthetic aperture radar (SAR) images classified by ice type and 2) the results...

Van Dyne, M. M.; Tsatsoulis, Costas; Fetterer, F.

1998-03-01T23:59:59.000Z

257

The Commonwealth's Leading College of Engineering  

E-Print Network [OSTI]

and Ocean Engineering....................540-231-6611 Biological Systems EngineeringThe Commonwealth's Leading College of Engineering is at Virginia Tech Faculty ExpErtisE GuidE 2012-2014 Virginia Tech engineering students won the international EcoCAR Challenge, a 3-year design competition

Virginia Tech

258

Felix Wrsten ETH Zurich enjoys a leading  

E-Print Network [OSTI]

Felix Würsten ETH Zurich enjoys a leading position in the quantum sciences. The Executive Board now research in this area. "ETH Zurich has secured it- self a good starting position and now wishes to use physics will become the tool of the engineer." Fundamental development Together with the ETH Zurich Foun

Leonardo, Degiorgi

259

Quality Support G. Q. Kirk, Lead (4)  

E-Print Network [OSTI]

) Quality Systems and Services Division February 11, 2011 Operations Analysis E. L. Griffis L. R. Brown, Secy. Systems Engineering Y. S. Kwon, Manager HFIR Maintenance D. H. AbercQuality Support G. Q. Kirk, Lead (4) R. L. Bullock (4) A. C. Hendricks (4) G. H. Henkel (4) D. L

260

Derivation of a human equivalent concentration for n-butanol using a physiologically based pharmacokinetic model for n-butyl acetate and metabolites n-butanol and n-butyric acid  

SciTech Connect (OSTI)

The metabolic series (family) approach for risk assessment uses a dosimetry-based analysis to develop toxicity information for a group of metabolically linked compounds using pharmacokinetic (PK) data for each compound and toxicity data for the parent compound. An initial physiologically-based pharmacokinetic (PBPK) model was developed to support the implementation of the metabolic series approach for n-butyl acetate and its subsequent metabolites, n-butanol, and n-butyric acid (the butyl series) (Barton et al. 2000). In conjunction with pilot pharmacokinetic studies, the model was used to design the definitive intravenous (i.v.) PK studies. Rats were implanted with dual indwelling cannulae and administered test compounds by i.v. bolus dose, i.v. infusion, or by inhalation in a recirculating closed chamber. Hepatic, vascular and extravascular metabolic constants for metabolism were estimated by fitting the model to the blood time course data from these experiments. The respiratory bioavailability of n-butyl acetate and n-butanol was estimated from closed chamber inhalation studies and measured ventilation rates. The resulting butyl series PBPK model successfully reproduces the blood time course of these compounds following i.v. administration, and inhalation exposure to n-butyl acetate and n-butanol. A fully scaled human version of the model successfully reproduces arterial blood n-butanol kinetics following inhalation exposure to n-butanol. These validated i.v (rat) and inhalation route models (rat, butyl acetate, n-butanol; human, butanol only) can be used to support species and dose-route extrapolations required for risk assessment of butyl series family of compounds. Further, this work demonstrates the usefulness of i.v. kinetic data for parameterization of systemic metabolism and the value of collaboration between experimentalists and kineticists in the development of PBPK models. The product of this effort, validated rat and human PBPK models for the butyl series compounds, illustrates the effectiveness of broad multi-institutional public/private collaborations in the pursuit of developing state of the art tools for risk assessment.

Teeguarden, Justin G.; Deisinger, P. J.; Poet, Torka S.; English, J C.; Faber, W D.; Barton, H. A.; Corley, Rick A.; Clewell, III, H. J.

2005-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "lead acid model" 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

Controlling acid rain  

E-Print Network [OSTI]

High concentrations of sulfuric and nitric acid in raTn fn the northeastern USA are caused by the large scale combustion of fossil fuels within this region. Average precipitation acidity is pH 4.2, but spatial and temporal ...

Fay, James A.

1983-01-01T23:59:59.000Z

262

Water-enhanced solubility of carboxylic acids in organic solvents and its applications to extraction processes  

SciTech Connect (OSTI)

The solubilities of carboxylic acids in certain organic solvents increase remarkably with an increasing amount of water in the organic phase. This phenomenon leads to a novel extract regeneration process in which the co-extracted water is selectively removed from an extract, and the carboxylic acid precipitates. This approach is potentially advantageous compared to other regeneration processes because it removes a minor component of the extract in order to achieve a large recovery of acid from the extract. Carboxylic acids of interest include adipic acid, fumaric acid, and succinic acid because of their low to moderate solubilities in organic solvents. Solvents were screened for an increase in acid solubility with increased water concentration in the organic phase. Most Lewis-base solvents were found to exhibit this increased solubility phenomena. Solvents that have a carbonyl functional group showed a very large increase in acid solubility. 71 refs., 52 figs., 38 tabs.

Starr, J.N.; King, C.J.

1991-11-01T23:59:59.000Z

263

Difunctional carboxylic acid anions in oilfield waters  

SciTech Connect (OSTI)

Recent models of porosity enhancement during sandstone diagenesis have called upon the metal complexing ability of difunctional carboxylic acid anions in subsurface waters to explain aluminosilicate dissolution. Although carboxylic acid anions have been known to exist in oilfield waters since the turn of the century, until now the existence of significant concentrations of difunctional carboxylic acid anions has not been documented. Data from this study show that difunctional carboxylic acid anions can exist in concentrations up to 2640 ppm, and can account for nearly 100% of the organic acid anions in some oilfield waters. Formation water samples with exceptionally high concentrations of difunctional carboxylic acid anions are found in reservoirs which are at maximum levels of thermal exposure, and which are presently in the 80-100/sup 0/C thermal window. Plagioclase dissolution experiments performed with natural oilfield waters and artificial solutions indicate that waters with high difunctional acid anion concentrations are capable, by organo-metallic complexation, of being apparently oversaturated with respect to total aluminum concentrations compared to the inorganic solubility of kaolinite by several orders of magnitude. Dissolution experiments simulating a specific geologic environment (Stevens Sandstone, southern San Joaquin Basin, California; using natural oilfield waters and Stevens Sandstone core samples), produced plagioclase and calcite dissolution textures similar to those noted in well cores from the Stevens Sandstone, as well as raising total aluminum concentrations in these experimental solutions several orders of magnitude over the solubility of kaolinite.

MacGowan, D.B.; Surdam, R.C.

1988-01-01T23:59:59.000Z

264

Studies on the chemical synthesis and characterization of lead oxide nanoparticles with different organic capping agents  

SciTech Connect (OSTI)

Lead oxide (PbO) nanoparticles were chemically synthesized using Lead (II) acetate as precursor. The effects of organic capping agents such as Oleic acid, Ethylene Diamine Tetra Acetic acid (EDTA) and Cetryl Tri Methyl Butoxide (CTAB) on the size and morphology of the nanoparticles were studied. Characterization techniques such as X-ray diffraction (XRD), Fourier Transform-Infrared spectroscopy (FT-IR), Photoluminescence (PL) Field Emission Scanning Electron Microscopy (FE-SEM), Energy Dispersive Spectroscopy (EDS) and Transmission Electron Microscopy (TEM) were used to analyse the prepared nanoparticles for their physical, structural and optical properties. The characterization studies reveal that the synthesized PbO nanoparticles had well defined crystalline structure and sizes in the range of 25 nm to 36 nm for capping agents used and 40 nm for pure PbO nanoparticles.

Arulmozhi, K. T., E-mail: arulsheelphy@gmail.com [Physics Wing (DDE), Annamalai University, Tamil Nadu, India - 608 002 (India); Mythili, N. [Department of Physics, Annamalai University, Tamil Nadu, India - 608 002 (India)] [Department of Physics, Annamalai University, Tamil Nadu, India - 608 002 (India)

2013-12-15T23:59:59.000Z

265

Lead in Your Drinking Water Lead (Pb) is an extremely toxic heavy metal that unfortunately occurs widely in  

E-Print Network [OSTI]

Lead in Your Drinking Water Lead (Pb) is an extremely toxic heavy metal that unfortunately occurs of metallic lead in the soil (4) Drinking water ­ water as it leaves the treatment plant has no lead plumbing components Your exposure to lead in drinking water is at the faucet, but the lead can come from

Maynard, J. Barry

266

CBER-DETR Nevada Coincident and Leading Employment Leading Index Hits Bump in the Road  

E-Print Network [OSTI]

the seasonally adjusted data reported by the Bureau of Labor Statistics. The Nevada Coincident Employment IndexCBER-DETR Nevada Coincident and Leading Employment Indexes1 Leading Index Hits Bump in the Road The Nevada Coincident Employment Index measures the ups and downs of the Nevada economy using an index

Ahmad, Sajjad

267

CBER-DETR Nevada Coincident and Leading Employment Coincident Index Rises, Leading Index Pauses  

E-Print Network [OSTI]

the seasonally adjusted data reported by the Bureau of Labor Statistics. The Nevada Coincident Employment IndexCBER-DETR Nevada Coincident and Leading Employment Indexes1 Coincident Index Rises, Leading Index Pauses The Nevada Coincident Employment Index measures the ups and downs of the Nevada economy using

Ahmad, Sajjad

268

Boundary element simulation of oscillating foil with leading-edge separation  

E-Print Network [OSTI]

In this thesis, we develop a numerical model to account for the leading-edge separation for the boundary element simulation of the oscillating foil with potential flow assumption. Similar to the trailing-edge separation, ...

Dong, Xiaoxia, S.M. Massachusetts Institute of Technology

2007-01-01T23:59:59.000Z

269

Nonaqueous solution synthesis process for preparing oxide powders of lead zirconate titanate and related materials  

DOE Patents [OSTI]

A process is disclosed for producing powders of perovskite-type compounds which comprises mixing a metal alkoxide solution with a lead acetate solution to form a homogeneous, clear metal solution, adding an oxalic acid/n-propanol solution to this metal solution to form an easily filterable, free-flowing precursor powder and then calcining this powder. This process provides fine perovskite-phase powders with ferroelectric properties which are particularly useful in a variety of electronic applications. 4 figs.

Voigt, J.A.; Sipola, D.L.; Tuttle, B.A.; Anderson, M.T.

1999-06-01T23:59:59.000Z

270

acid waste consolidation: Topics by E-print Network  

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

highly selective behavior for heavy metal treatment and followed Langmuir adsorption isotherm model. The maximum adsorption capacity evaluated for iron, cadmium, zinc and lead...

271

Lead magnesium niobate actuator for micropositioning  

DOE Patents [OSTI]

An improved lead magnesium niobate actuator is disclosed comprising a cylindrical lead magnesium niobate crystal stack mounted in a cylindrical casing wherein a bias means, such as one or more belleville washers, is located between one end of the crystal stack and a partially closed end of the casing; and adjustment means are provided which bear against the opposite end of the crystal stack, whereby an adjustable compressive force is constantly applied against the crystal stack, whether the crystal stack is actuated in an extended position, or is in an unactuated contracted position. In a preferred embodiment, cooling ports are provided for the circulation of coolant in the actuator to cool the crystal stack, and provision is made for removal and replacement of the crystal stack without disconnecting the actuator from the external device being actuated.

Swift, Charles D. (Livermore, CA); Bergum, John W. (Concord, CA)

1994-01-01T23:59:59.000Z

272

Lead magnesium niobate actuator for micropositioning  

DOE Patents [OSTI]

An improved lead magnesium niobate actuator is disclosed comprising a cylindrical lead magnesium niobate crystal stack mounted in a cylindrical casing wherein a bias means, such as one or more belleville washers, is located between one end of the crystal stack and a partially closed end of the casing; and adjustment means are provided which bear against the opposite end of the crystal stack, whereby an adjustable compressive force is constantly applied against the crystal stack, whether the crystal stack is actuated in an extended position, or is in an unactuated contracted position. In a preferred embodiment, cooling ports are provided for the circulation of coolant in the actuator to cool the crystal stack, and provision is made for removal and replacement of the crystal stack without disconnecting the actuator from the external device being actuated. 3 figs.

Swift, C.D.; Bergum, J.W.

1994-10-25T23:59:59.000Z

273

Modeling  

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

an implementation of a single-fluid inter- face model in the ALE-AMR code to simulate surface tension effects. The model does not require explicit information on the physical...

274

River Sediment Analysis by Slurry Sampling FAAS: Determination of Copper, Zinc and Lead Flvia L. Alves, Solange Cadore, Wilson F. Jardim and Marco A. Z. Arruda*  

E-Print Network [OSTI]

Article River Sediment Analysis by Slurry Sampling FAAS: Determination of Copper, Zinc and Lead sediment analysis was developed. Using this procedure, copper, zinc and lead were determined. The influence of the nitric acid concentration on the slurry preparation, as well as the sediment particle size

Jardim, Wilson de Figueiredo

275

XRD, lead equivalent and UV-VIS properties study of Ce and Pr lead silicate glasses  

SciTech Connect (OSTI)

In this work, Cerium (Ce) and Praseodymium (Pr) containing lead silicate glasses were produced with 2 different molar ratios low (0.2 wt%) and high (0.4wt%). These types of glasses can satisfy the characteristics required for radiation shielding glasses and minimize the lead composition in glass. The radiation shielding properties of the synthesized glasses is explained in the form of lead equivalent study. The XRD diffraction and UV-VIS analysis were performed to observe the structural changes of the synthesis glasses at 1.5 Gy gamma radiation exposures.

Alias, Nor Hayati, E-mail: norhayati@nuclearmalaysia.gov.my; Abdullah, Wan Shafie Wan, E-mail: norhayati@nuclearmalaysia.gov.my; Isa, Norriza Mohd, E-mail: norhayati@nuclearmalaysia.gov.my; Isa, Muhammad Jamal Md, E-mail: norhayati@nuclearmalaysia.gov.my; Zali, Nurazila Mat; Abdullah, Nuhaslinda Ee [Malaysian Nuclear Agency, 43000, Bangi, Kajang, Selangor (Malaysia); Muhammad, Azali [Malaysian Society for Non-Destructive Testing (Malaysia)

2014-02-12T23:59:59.000Z

276

IMPROVED PROCESSES TO REMOVE NAPHTHENIC ACIDS  

SciTech Connect (OSTI)

In the first year of this project, we have established our experimental and theoretical methodologies for studies of the catalytic decarboxylation process. We have developed both glass and stainless steel micro batch type reactors for the fast screening of various catalysts with reaction substrates of model carboxylic acid compounds and crude oil samples. We also developed novel product analysis methods such as GC analyses for organic acids and gaseous products; and TAN measurements for crude oil. Our research revealed the effectiveness of several solid catalysts such as NA-Cat-1 and NA-Cat-2 for the catalytic decarboxylation of model compounds; and NA-Cat-5{approx}NA-Cat-9 for the acid removal from crude oil. Our theoretical calculations propose a three-step concerted oxidative decarboxylation mechanism for the NA-Cat-1 catalyst.

Aihua Zhang; Qisheng Ma; William A. Goddard; Yongchun Tang

2004-04-28T23:59:59.000Z

277

(Acid rain workshop)  

SciTech Connect (OSTI)

The traveler presented a paper entitled Susceptibility of Asian Ecosystems to Soil-Mediated Acid Rain Damage'' at the Second Workshop on Acid Rain in Asia. The workshop was organized by the Asian Institute of Technology (Bangkok, Thailand), Argonne National Laboratory (Argonne, Illinois), and Resource Management Associates (Madison, Wisconsin) and was sponsored by the US Department of Energy, the United Nations Environment Program, the United Nations Economic and Social Commission for Asia and the Pacific, and the World Bank. Papers presented on the first day discussed how the experience gained with acid rain in North America and Europe might be applied to the Asian situation. Papers describing energy use projections, sulfur emissions, and effects of acid rain in several Asian countries were presented on the second day. The remaining time was allotted to discussion, planning, and writing plans for a future research program.

Turner, R.S.

1990-12-05T23:59:59.000Z

278

Know the Facts Lead poisoning is caused by swallowing or  

E-Print Network [OSTI]

;Protect Your Family 1. Test your home for lead. · If you live in a home built before 1978, have your home are most at risk. If you are pregnant, lead can harm your baby. Lead can cause learning and behavior on their hands and toys. FACT A lead test is the only way to know if your child has lead poisoning. Most

279

Lead Screening for NH Soils: Minimizing Health Risks  

E-Print Network [OSTI]

family. On your soil test report, if the lead screening levels are elevated, you will receive in populated areas include the use of lead paint around homes (pre- 1970s), the use of lead-arsenate for pest does a "lead screening" test that indicates whether or not lead could pose a health risk for your

New Hampshire, University of

280

E-Print Network 3.0 - acid transport system Sample Search Results  

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

Collection: Biology and Medicine 57 Stabilization of Water-in-Oil Emulsions by Naphthenic Acids and Their Salts: Model Compounds, Role of pH, and Soap : Acid Ratio Summary:...

Note: This page contains sample records for the topic "lead acid model" 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

E-Print Network 3.0 - acid requirements based Sample Search Results  

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

and Ecology ; Biology and Medicine 87 Stabilization of Water-in-Oil Emulsions by Naphthenic Acids and Their Salts: Model Compounds, Role of pH, and Soap : Acid Ratio Summary:...

282

E-Print Network 3.0 - affects acid production Sample Search Results  

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

Environmental Sciences and Ecology 67 Stabilization of Water-in-Oil Emulsions by Naphthenic Acids and Their Salts: Model Compounds, Role of pH, and Soap : Acid Ratio Summary:...

283

E-Print Network 3.0 - acid overcomes apoptosis-resistance Sample...  

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

Biology and Medicine ; Biotechnology 23 Stabilization of Water-in-Oil Emulsions by Naphthenic Acids and Their Salts: Model Compounds, Role of pH, and Soap : Acid Ratio Summary:...

284

E-Print Network 3.0 - acids structural requirements Sample Search...  

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

Biology and Medicine ; Biotechnology 45 Stabilization of Water-in-Oil Emulsions by Naphthenic Acids and Their Salts: Model Compounds, Role of pH, and Soap : Acid Ratio Summary:...

285

Fatty Acid Carcass Mapping  

E-Print Network [OSTI]

FATTY ACID CARCASS MAPPING A Thesis by STACEY NICOLE TURK 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 2008... Major Subject: Animal Science FATTY ACID CARCASS MAPPING A Thesis by STACEY NICOLE TURK 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...

Turk, Stacey N.

2010-01-14T23:59:59.000Z

286

The utilization of tricarboxylic acid cycle acids and the uptake of succinic acid by Neurospora crassa  

E-Print Network [OSTI]

THE UTILIZATION OF TRICARBOXYLIC ACID CYCLE ACIDS AND THE UPTAKE OF SUCCINIC ACID BY NEUROSPORA CRASSA A Thesis by PATTI LYNN GILLILAND Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE August 1978 Ma) or Subject: Microbiology THE UTILIZATION OF TRICARBOXYLIC ACID CYCLE ACIDS AND THE UPTAKE OF SUCCINIC ACID BY NEUROSPORA CRASSA A Thesis by PATTI LYNN GILLILAND Approved as to style and content by...

Gilliland, Patti Lynn

2012-06-07T23:59:59.000Z

287

Asian anthropogenic lead contamination in the North Pacific Ocean as evidenced by stable lead isotopic compositions  

E-Print Network [OSTI]

and North Central Pacific Ocean. Deep Sea Res. Part II Top.Lead Within the Northwest Pacific Ocean Evidenced by Leadventilation flux of the Pacific Ocean. J. Geophys. Res. 106(

Zurbrick, Cheryl Marie

2014-01-01T23:59:59.000Z

288

Properties of lead-lithium solutions  

SciTech Connect (OSTI)

Lead-lithium solutions are of interest to liquid metal wall ICF reactor designers because Pb may be present to some extent in both heavy ion beam and laser-driven ICF targets; therefore, Pb will be present as an impurity in a flowing lithium wall. In addition, Pb-Li solutions containing approx. 80 a/o Pb are a strong candidate for a heavy ion beam driven HYLIFE converter and a viable alternative to a pure Li wall for a laser driven converter. The properties of Pb-Li solutions including the effect of hydrogen impurities are reviewed, and the reactor design implications are discussed.

Hoffman, N.J.; Darnell, A.; Blink, J.A.

1980-10-01T23:59:59.000Z

289

Non-lead hollow point bullet  

DOE Patents [OSTI]

The non-lead hollow point bullet of the instant invention comprises a mixed construction slug further comprising, a monolithic metal insert having a tapered (preferred conical) hollow point tip and a tapered (preferred conical) tail protrusion, and an unsintered powdered metal composite core in tandem alignment with the insert. The core has a hollow tapered (preferred conical) cavity tip portion coupled with the tapered (preferred conical) tail protrusion on the insert. An open tip jacket envelops at least a portion of the insert and the core. The jacket is swaged at the open tip.

Vaughn, Norman L. (Knoxville, TN); Lowden, Richard A. (Clinton, TN)

2003-04-15T23:59:59.000Z

290

Leading Edge Technologies Inc | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to:46 - 429Lacey, Washington:Lakeville, MN)Lauderhill,5. ItLea Hill, Washington:Leading

291

Richard Gerber! NERSC! User Services Group Lead  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared0 Resource Program September 2010 BRichardGroup Lead Debugging and

292

Focus Sheet | Hydrofluoric Acid Health hazards of hydrofluoric acid  

E-Print Network [OSTI]

Focus Sheet | Hydrofluoric Acid Health hazards of hydrofluoric acid Hydrofluoric acid (HF characterized by weight loss, brittle bones, anemia, and general ill health. Safe use If possible, avoid working to exposures. #12;Focus Sheet | Hydrofluoric Acid Environmental Health and Safety Environmental Programs Office

Wilcock, William

293

Isotopic generator for bismuth-212 and lead-212 based on radium  

DOE Patents [OSTI]

Disclosed are method and apparatus for providing radionuclides of bismuth-212 and lead-212. Thorium-228 and carrier solution starting material is input to a radiologically contained portion of an isotopic generator system, and radium-224 is separated from thorium-228 which is retained by a strongly basic anion exchange column. The separated radium-224 is transferred to an accessible, strongly acidic cationic exchange column. The cationic column retains the radium-224, and natural radioactive decay generates bismuth-212 and lead-212. The cationic exchange column can also be separated from the contained portion of the system and utilized without the extraordinary safety measures necessary in the contained portion. Furthermore, the cationic exchange column provides over a relatively long time period the short lived lead-212 and bismuth-212 radionuclides which are useful for a variety of medical therapies.

Hines, J.J.; Atcher, R.W.; Friedman, A.M.

1985-01-30T23:59:59.000Z

294

Solvent extraction studies of holmium with acidic extractants  

SciTech Connect (OSTI)

Liquid-liquid extraction studies of holmium with 2-ethylhexyl phosphoric acid mono-2-ethylhexyl ester, naphthenic, and Versatic 10 acids have been carried out. The nature of the extracted species and the extraction equilibrium constants of these systems have been determined from aqueous nitrate solution. The extraction mechanism and complexation models have been proposed. 11 refs., 8 figs.

Gaikwad, A.G.; Damodaran, A.D. (CSIR, Trivandrum (India))

1993-03-01T23:59:59.000Z

295

Electrostatic precipitation of condensed acid mist  

SciTech Connect (OSTI)

This report deals with the second part (Phase 2) of a two-phased study of the control of acid mist emissions using a compact, wet electrostatic precipitator (WESP). The goal of the study was to determine the degree of acid mist control that could be achieved when a compact WESP was used to replace or augment the mist eliminators in a flue gas desulfurization (FGD) system. Phase 1 of the study examined the electrical operation of a lab-scale WESP collecting an acid mist from a coal combustion pilot plant equipped with a spray chamber. The results of this study were used to develop and validate a computer model of the WESP. In Phase 2, measurements were made at two utility scrubber installations to determine the loadings of acid mist, fly ash, and scrubber carryover. These measurements were used as input to the computer model to project the performance of retrofitted WESPs at both of the utility test sites. Phase 1 results showed that excellent electrical operating conditions could be achieved, but very high loadings of acid mist or the fine fly ash tended to degrade electrical operation because of space charge suppression of the corona current. Measurements made at the utility sites under Phase 2 showed that acid mist accounted for 40 to 57% of the total particulate mass, while fly ash and scrubber solids accounted for 40 to 55% and 1.0 to 3.4%. Impactor samples from both test sites showed an increase in acid content with decreasing particle size. 9 refs., 14 figs., 13 tabs.

Dahlin, R.S.

1991-04-01T23:59:59.000Z

296

Anthropogenic Lead Emissions in the Ocean: The Evolving Global Experiment  

E-Print Network [OSTI]

We review the current distribution of lead and lead isotopes in the ocean with regard to the evolving pattern of human emissions during the past decades and centuries.

Lee, Jong-Mi

297

Combined Heat and Power System Enables 100% Reliability at Leading...  

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

Enables 100% Reliability at Leading Medical Campus - Case Study, 2013 Combined Heat and Power System Enables 100% Reliability at Leading Medical Campus - Case Study, 2013 Thermal...

298

Research Led by Sandia Reveals Leading-Edge Erosion Significantly...  

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

Research Led by Sandia Reveals Leading-Edge Erosion Significantly Reduces Wind Turbine Performance Research Led by Sandia Reveals Leading-Edge Erosion Significantly Reduces Wind...

299

University of Maryland Wins Architecture Prize, Pulls Into Lead...  

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

Maryland Wins Architecture Prize, Pulls Into Lead in 2011 Solar Decathlon University of Maryland Wins Architecture Prize, Pulls Into Lead in 2011 Solar Decathlon September 28, 2011...

300

Electrochemical Sensors for the Detection of Lead and Other Toxic...  

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

Sensors for the Detection of Lead and Other Toxic Heavy Metals: The Next Generation of Personal Exposure Electrochemical Sensors for the Detection of Lead and Other Toxic Heavy...

Note: This page contains sample records for the topic "lead acid model" 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

Hydrogen diffusion in Lead Zirconate Titanate and Barium Titanate...  

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

diffusion in Lead Zirconate Titanate and Barium Titanate. Hydrogen diffusion in Lead Zirconate Titanate and Barium Titanate. Abstract: Hydrogen is a potential clean-burning,...

302

New Superconducting Magnet Will Lead to Next Generation of Wind...  

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

New Superconducting Magnet Will Lead to Next Generation of Wind Turbine Generators New Superconducting Magnet Will Lead to Next Generation of Wind Turbine Generators September 12,...

303

Dow Chemical Company: Assessment Leads to Steam System Energy...  

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

Dow Chemical Company: Assessment Leads to Steam System Energy Savings in a Petrochemical Plant Dow Chemical Company: Assessment Leads to Steam System Energy Savings in a...

304

The Human leading the Thermal Comfort Control  

E-Print Network [OSTI]

2007 Zhang H., 2003, Human Thermal Sensation and Comfort in Transient and Non Uniform Thermal Environments; Phd Thesis Zhang H., Arens E., Huizinga C., Han T., 2010, Thermal sensations and comfort models for non-uniform and transient environments...

Zeiler, W.; Boxem, G.; Van Houten, R.; Vissers, D.; Maaijen, R.

2012-01-01T23:59:59.000Z

305

Theoretical Population Biology 54, 257 269 (1998) Acidic Deposition, Plant Pests, and the Fate  

E-Print Network [OSTI]

with power plants, smelters or factories. More recent research developments have evidenced the existenceTheoretical Population Biology 54, 257 269 (1998) Acidic Deposition, Plant Pests, and the Fate the abundance of predators is not too small. Numerical simulation shows that increasing acidic load can lead

Gatto, Marino

306

Optical high acidity sensor  

DOE Patents [OSTI]

An apparatus and method for determining acid concentrations in solutions having acid concentrations of from about 0.1 Molar to about 16 Molar is disclosed. The apparatus includes a chamber for interrogation of the sample solution, a fiber optic light source for passing light transversely through the chamber, a fiber optic collector for receiving the collimated light after transmission through the chamber, a coating of an acid resistant polymeric composition upon at least one fiber end or lens, the polymeric composition in contact with the sample solution within the chamber and having a detectable response to acid concentrations within the range of from about 0.1 Molar to about 16 Molar, a measurer for the response of the polymeric composition in contact with the sample solution, and, a comparer of the measured response to predetermined standards whereby the acid molarity of the sample solution within the chamber can be determined. Preferably, a first lens is attached to the end of the fiber optic light source, the first lens adapted to collimate light from the fiber optic light source, and a second lens is attached to the end of the fiber optic collector for focusing the collimated light after transmission through the chamber.

Jorgensen, Betty S. (Jemez Springs, NM); Nekimken, Howard L. (Los Alamos, NM); Carey, W. Patrick (Lynnwood, WA); O'Rourke, Patrick E. (Martinez, GA)

1997-01-01T23:59:59.000Z

307

Lead Slowing Down Spectrometer Research Plans  

SciTech Connect (OSTI)

The MPACT-funded Lead Slowing Down Spectrometry (LSDS) project has been evaluating the feasibility of using LSDS techniques to assay fissile isotopes in used nuclear fuel assemblies. The approach has the potential to provide considerable improvement in the assay of fissile isotopic masses in fuel assemblies compared to other non-destructive techniques in a direct and independent manner. The LSDS collaborations suggests that the next step to in empirically testing the feasibility is to conduct measurements on fresh fuel assemblies to understand investigate self-attenuation and fresh mixed-oxide (MOX) fuel rodlets so we may betterto understand extraction of masses for 235U and 239Pu. While progressing toward these goals, the collaboration also strongly suggests the continued development of enabling technology such as detector development and algorithm development, thatwhich could provide significant performance benefits.

Warren, Glen A.; Kulisek, Jonathan A.; Gavron, Victor; Danon, Yaron; Weltz, Adam; Harris, Jason; Stewart, T.

2013-03-22T23:59:59.000Z

308

Synthesis and regeneration of lead (IV) acetate  

SciTech Connect (OSTI)

Lead acetate [Pb(O{sub 2}CMe){sub 4}] was easily synthesized from a warm solution of Pb{sub 3}O{sub 4}, HO{sub 2}CMe and O(OCMe){sub 2} following literature preparations when the appropriate measures to minimize water contamination were followed. Furthermore, Pb(O{sub 2}CMe){sub 4} which has been decomposed (evidenced by the appearance of a purple color due to oxidation) can be regenerated using a similar preparatory route. Introduction of Pb(O{sub 2}CMe){sub 4} from the two routes outlined above into the IMO process for production of PZT thin films gave films with comparable ferroelectric properties to commercially available Pb(O{sub 2}CMe){sub 4} precursors. However, the freshly synthesized material yields PZT films with better properties compared to the recycled material.

Boyle, T.J.; Al-Shareef, H.N.; Moore, G.J. [Sandia National Labs., Albuquerque, NM (United States). Advanced Materials Lab.

1996-11-01T23:59:59.000Z

309

A Direct, Biomass-Based Synthesis of Benzoic Acid: Formic Acid-Mediated Deoxygenation of the Glucose-Derived Materials Quinic Acid and Shikimic Acid  

SciTech Connect (OSTI)

An alternative biomass-based route to benzoic acid from the renewable starting materials quinic acid and shikimic acid is described. Benzoic acid is obtained selectively using a highly efficient, one-step formic acid-mediated deoxygenation method.

Arceo, Elena; Ellman, Jonathan; Bergman, Robert

2010-05-03T23:59:59.000Z

310

EFFECTS OF NITRIC ACID ON CRITICALITY SAFETY ANALYSIS  

SciTech Connect (OSTI)

As nitric acid molarity is increased, there are two competing phenomena affecting the reactivity of the system. First, there is interaction between each of the 10 wells in the basket-like insert. As the molarity of the nitric acid solution is increased (it moves from 100% water to 100% HNO{sub 3}), the hydrogen atom density decreases by about 80%. However, it remains a relatively efficient moderator. The moderating ratio of nitric acid is about 90% that of water. As the media between the wells is changed from 100% water to 100% nitric acid, the density of the media increases by 50%. A higher density typically leads to a better reflector. However, when the macroscopic scattering cross sections are considered, nitric acid is a much worse reflector than water. The effectiveness of nitric acid as a reflector is about 40% that of water. Since the media between the wells become a worse reflector and still remains an effective moderator, interaction between the wells increases. This phenomenon will cause reactivity to increase as nitric acid molarity increases. The seond phenomenon is due to the moderating ratio changing in the high concentration fissile-nitric acid solution in the 10 wells. Since the wells contain relatively small volumes of high concentration solutions, a small decrease in moderating power has a large effect on reactivity. This is due to the fact that neutrons are more likely to escape the high concentration fissile solution before causing another fission event. The result of this phenomenon is that as nitric acid molarity increases, reactivity decreases. Recent studies have shown that the second phenomenon is indeed the dominating force in determining reactivity changes in relation to nitric acid molarity changes. When considering the system as a whole, as nitric acid molarity increases, reactivity decreases.

Williamson, B.

2011-08-18T23:59:59.000Z

311

Statistical physics of cerebral embolization leading to stroke J. P. Hague1  

E-Print Network [OSTI]

Statistical physics of cerebral embolization leading to stroke J. P. Hague1 and E. M. L. Chung2 1 stroke using a minimal model of emboli moving through the cerebral arteries. Our model of the blood flow stroke to be a feature of the cerebral blood flow network on the verge of a phase transition. DOI: 10

Hague, Jim

312

Comparison of leading and next-to-leading logarithmic electroweak corrections to Higgs production  

E-Print Network [OSTI]

Using soft-collinear effective theory, the leading-log radiative electroweak corrections are written in a closed and analytical form for the hadronic cross section of Higgs production through vector boson fusion, qq->qqH, one of the most promising channels for studying the Higgs boson at the LHC. The simple leading-log resummation is compared with a full next-to-leading-log calculation, and its accuracy is found to be of order 1% up to 10 TeV, i.e. better than the accuracy of PDFs. Corrections are found to be larger than predicted by one-loop fixed order approximations at LHC energies. The method provides a simple way of incorporating the electroweak corrections in software packages, improving the accuracy of simulations.

Fabio Siringo

2013-07-29T23:59:59.000Z

313

Comparison of leading and next-to-leading logarithmic electroweak corrections to Higgs production  

E-Print Network [OSTI]

Using soft-collinear effective theory, the leading-log radiative electroweak corrections are written in a closed and analytical form for the hadronic cross section of Higgs production through vector boson fusion, qq->qqH, one of the most promising channels for studying the Higgs boson at the LHC. The simple leading-log resummation is compared with a full next-to-leading-log calculation, and its accuracy is found to be of order 1% up to 10 TeV, i.e. comparable with the accuracy of PDFs. Corrections are found to be larger than predicted by one-loop fixed order approximations at LHC energies. The method provides a simple way of incorporating the electroweak corrections in software packages, improving the accuracy of simulations.

Siringo, Fabio

2013-01-01T23:59:59.000Z

314

The greenhouse effect and acid rain  

SciTech Connect (OSTI)

The concentrations of carbon dioxide, methane, sulfur dioxide, nitrous oxides and chlorofluorocarbons is increasing in the earth's atmosphere. Increased concentrations of these trace gases could lead to global warming, increased acid rain and increased UV radiation on the earth's surface; however, the actual impacts are still uncertain and are also the subject of great debate. Application of clean'' energy sources such as geothermal are obviously desirable for decreasing these effects and improving our overall general environment. This paper briefly summarizes the global environment concerns, providing a backdrop for the following papers which describe the geothermal role in future environmental considerations. 5 refs., 2 figs., 1 tab.

Traeger, R.K.

1990-01-01T23:59:59.000Z

315

Leading Particle Production in Light Flavour Jets  

E-Print Network [OSTI]

The energy distribution and type of the particle with the highest momentum in quark jets are determined for each of the five quark flavours making only minimal model assumptions. The analysis is based on a large statistics sample of hadronic Z0 decays collected with the OPAL detector at the LEP e+e- collider. These results provide a basis for future studies of light flavour production at other centre-of-mass energies. We use our results to study the hadronisation mechanism in light flavour jets and compare the data to the QCD models JETSET and HERWIG. Within the JETSET model we also directly determine the suppression of strange quarks to be gamma_s=0.422+-0.049 (stat.)+-0.059 (syst.) by comparing the production of charged and neutral kaons in strange and non-strange light quark events. Finally we study the features of baryon production.

Abbiendi, G; kesson, P F; Alexander, Gideon; Allison, J; Anderson, K J; Arcelli, S; Asai, S; Ashby, S F; Axen, D A; Azuelos, Georges; Bailey, I; Ball, A H; Barberio, E; Barlow, R J; Batley, J Richard; Baumann, S; Behnke, T; Bell, K W; Bella, G; Bellerive, A; Bentvelsen, Stanislaus Cornelius Maria; Bethke, Siegfried; Betts, S; Biebel, O; Biguzzi, A; Bloodworth, Ian J; Bock, P; Bhme, J; Boeriu, O; Bonacorsi, D; Boutemeur, M; Braibant, S; Bright-Thomas, P G; Brigliadori, L; Brown, R M; Burckhart, Helfried J; Capiluppi, P; Carnegie, R K; Carter, A A; Carter, J R; Chang, C Y; Charlton, D G; Chrisman, D; Ciocca, C; Clarke, P E L; Clay, E; Cohen, I; Conboy, J E; Cooke, O C; Couchman, J; Couyoumtzelis, C; Coxe, R L; Cuffiani, M; Dado, S; Dallavalle, G M; Dallison, S; Davis, R; de Roeck, A; Dervan, P J; Desch, Klaus; Dienes, B; Dixit, M S; Donkers, M; Dubbert, J; Duchovni, E; Duckeck, G; Duerdoth, I P; Estabrooks, P G; Etzion, E; Fabbri, Franco Luigi; Fanfani, A; Fanti, M; Faust, A A; Feld, L; Ferrari, P; Fiedler, F; Fierro, M; Fleck, I; Frey, A; Frtjes, A; Futyan, D I; Gagnon, P; Gary, J W; Gaycken, G; Geich-Gimbel, C; Giacomelli, G; Giacomelli, P; Gingrich, D M; Glenzinski, D A; Goldberg, J; Gorn, W; Grandi, C; Graham, K; Gross, E; Grunhaus, Jacob; Gruw, M; Hajdu, C; Hanson, G G; Hansroul, M; Hapke, M; Harder, K; Harel, A; Hargrove, C K; Harin-Dirac, M; Hauschild, M; Hawkes, C M; Hawkings, R; Hemingway, Richard J; Herten, G; Heuer, R D; Hildreth, M D; Hill, J C; Hobson, P R; Hcker, Andreas; Hoffman, K; Homer, R James; Honma, A K; Horvth, D; Hossain, K R; Howard, R; Hntemeyer, P; Igo-Kemenes, P; Imrie, D C; Ishii, K; Jacob, F R; Jawahery, A; Jeremie, H; Jimack, Martin Paul; Jones, C R; Jovanovic, P; Junk, T R; Kanaya, N; Kanzaki, J I; Karapetian, G V; Karlen, D A; Kartvelishvili, V G; Kawagoe, K; Kawamoto, T; Kayal, P I; Keeler, Richard K; Kellogg, R G; Kennedy, B W; Kim, D H; Klier, A; Kobayashi, T; Kobel, M; Kokott, T P; Kolrep, M; Komamiya, S; Kowalewski, R V; Kress, T; Krieger, P; Von Krogh, J; Khl, T; Kupper, M; Kyberd, P; Lafferty, G D; Landsman, Hagar Yal; Lanske, D; Lauber, J; Lawson, I; Layter, J G; Lellouch, Daniel; Letts, J; Levinson, L; Liebisch, R; Lillich, J; List, B; Littlewood, C; Lloyd, A W; Lloyd, S L; Loebinger, F K; Long, G D; Losty, Michael J; L, J; Ludwig, J; Macchiolo, A; MacPherson, A L; Mader, W F; Mannelli, M; Marcellini, S; Marchant, T E; Martin, A J; Martin, J P; Martnez, G; Mashimo, T; Mttig, P; McDonald, W J; McKenna, J A; McKigney, E A; McMahon, T J; McPherson, R A; Meijers, F; Mndez-Lorenzo, P; Merritt, F S; Mes, H; Meyer, I; Michelini, Aldo; Mihara, S; Mikenberg, G; Miller, D J; Mohr, W; Montanari, A; Mori, T; Nagai, K; Nakamura, I; Neal, H A; Nisius, R; O'Neale, S W; Oakham, F G; Odorici, F; gren, H O; Okpara, A N; Oreglia, M J; Orito, S; Psztor, G; Pater, J R; Patrick, G N; Patt, J; Prez-Ochoa, R; Petzold, S; Pfeifenschneider, P; Pilcher, J E; Pinfold, James L; Plane, D E; Poli, B; Polok, J; Przybycien, M B; Quadt, A; Rembser, C; Rick, Hartmut; Robins, S A; Rodning, N L; Roney, J M; Rosati, S; Roscoe, K; Rossi, A M; Rozen, Y; Runge, K; Runlfsson, O; Rust, D R; Sachs, K; Saeki, T; Sahr, O; Sang, W M; Sarkisyan-Grinbaum, E; Sbarra, C; Schaile, A D; Schaile, O; Scharff-Hansen, P; Schieck, J; Schmitt, S; Schning, A; Schrder, M; Schumacher, M; Schwick, C; Scott, W G; Seuster, R; Shears, T G; Shen, B C; Shepherd-Themistocleous, C H; Sherwood, P; Siroli, G P; Skuja, A; Smith, A M; Snow, G A; Sobie, Randall J; Sldner-Rembold, S; Spagnolo, S; Sproston, M; Stahl, A; Stephens, K; Stoll, K; Strom, D; Strhmer, R; Surrow, B; Talbot, S D; Taras, P; Tarem, S; Teuscher, R; Thiergen, M; Thomas, J; Thomson, M A; Torrence, E; Towers, S; Trefzger, T M; Trigger, I; Trcsnyi, Z L; Tsur, E; Turner-Watson, M F; Ueda, I; Van Kooten, R; Vannerem, P; Verzocchi, M; Voss, H; Wckerle, F; Waller, D; Ward, C P; Ward, D R; Watkins, P M; Watson, A T; Watson, N K; Wells, P S; Wengler, T; Wermes, N; Wetterling, D; White, J S; Wilson, G W; Wilson, J A; Wyatt, T R; Yamashita, S; Zacek, V; Zer-Zion, D

2000-01-01T23:59:59.000Z

316

Effect of fulvic acid on the kinetics of aluminum fluoride complexation in acidic waters  

SciTech Connect (OSTI)

Both fluoride ion and fulvic acid are important aluminum binding ligands present in soil and surface waters. As such they play a role in the speciation and toxicity of natural waters that have increased aluminum concentration due to acid precipitation. We report here a kinetic study of aluminum complexation in the presence of both of these naturally occurring ligands. An overall mechanism has been identified and rate constants have been obtained for several of the reactions involved. We find that an a priori model of the two ligands in competition for aluminum is incorrect. In fact, the rate of fluoride ion consumption is increased by the presence of fulvic acid. Evidence is presented that this effect is due to several equilibria, some of which involve mixed-ligand species. The important equilibria in this three-component system are identified and discussed, as are aluminum speciation and toxicity in acidic waters.

Plankey, B.J.; Patterson, H.H.

1988-12-01T23:59:59.000Z

317

Development and application of a real time lead-in-air analyzer in controlling lead exposure at a primary lead smelter  

SciTech Connect (OSTI)

To assist in locating and quantifying fugitive emissions in a primary lead smelter, a real time lead-in-air analyzer has been developed. Dust is collected on paper tape filters and the lead analyzed by X-ray fluorescence. The unit has been used successfully to assist in the implementation of an engineering control monitoring program.

Smith, W.J.; Dekker, D.L.; Greenwood-Smith, R.

1986-12-01T23:59:59.000Z

318

acid production induced: Topics by E-print Network  

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

Pot Experiments... Fraps, G. S. (George Stronach) 1909-01-01 275 Stabilization of Water-in-Oil Emulsions by Naphthenic Acids and Their Salts: Model Compounds, Role of pH, and...

319

acid ph refluxes: Topics by E-print Network  

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

Sergio Borgia; Paul Hoffman; Clifford A. Lingwood 1996-01-01 35 Stabilization of Water-in-Oil Emulsions by Naphthenic Acids and Their Salts: Model Compounds, Role of pH, and...

320

acid receptor tgr5: Topics by E-print Network  

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

(more) Chia, Yoke Yin 2009-01-01 28 Acidic pH Changes Receptor Binding Specificity of Helicobacter pylori: a Binary Adhesion Model in which Surface Heat Shock (Stress) Proteins...

Note: This page contains sample records for the topic "lead acid model" 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

acid transporter subtype: Topics by E-print Network  

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

16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Long range transport of acid rain precursors MIT - DSpace Summary: A model of the long range transport of primary...

322

acid transporter nat: Topics by E-print Network  

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

C. Voigt et al. Title Page Paris-Sud XI, Universit de 4 Long range transport of acid rain precursors MIT - DSpace Summary: A model of the long range transport of primary...

323

acid transporter glt-1: Topics by E-print Network  

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

(GLT-1) are the most abundant subtypes Bergles, Dwight 5 Long range transport of acid rain precursors MIT - DSpace Summary: A model of the long range transport of primary...

324

acid transporter gat1: Topics by E-print Network  

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

Xenopus laevis oocytes by using tracer flux Eskandari, Sepehr 7 Long range transport of acid rain precursors MIT - DSpace Summary: A model of the long range transport of primary...

325

acid precipitation precursors: Topics by E-print Network  

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

16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Long range transport of acid rain precursors MIT - DSpace Summary: A model of the long range transport of primary...

326

acid transport protein: Topics by E-print Network  

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

Howard W. Davidson; Clare H Mcgowan; William E Balch 1992-01-01 4 Long range transport of acid rain precursors MIT - DSpace Summary: A model of the long range transport of primary...

327

acid transport proteins: Topics by E-print Network  

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

Howard W. Davidson; Clare H Mcgowan; William E Balch 1992-01-01 4 Long range transport of acid rain precursors MIT - DSpace Summary: A model of the long range transport of primary...

328

Modeling  

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

a single-fluid diffuse interface model in the ALE-AMR hydrodynamics code to simulate surface tension effects. We show simula- tions and compare them to other surface tension...

329

Modeling  

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

sion effects. We show the result of a test case, and compare it to the result without surface tension. The model describes droplet formation nicely. Application The ARRA-funded...

330

Solvent extraction of rare-earth metals by carboxylic acids  

SciTech Connect (OSTI)

The solvent extraction of the trivalent lanthanides and yttrium from nitrate media by solutions of carboxylic acids in xylene has been studied. Commercially available carboxylic acids such as Versatic 10 and naphthenic acids were used, as well as model compounds of known structure, such as 2-ethylhexanoic and 3-cyclohexylpropanoic acids. In a few cases, extraction of the metals from sulphate and chloride solutions was also investigated. The dependence of the extraction properties of the carboxylic acids on the atomic number of the lanthanide shows a definite relationship to the steric bulk of the carboxylic acid molecule quantified by means of the steric parameter, E{sub s}{prime} of the substituent alkyl group. The stoichiometries of the extracted complexes for representative light (La), middle (Gd) and heavy (Lu) rare-earth metals were investigated by the slope-analysis technique for a sterically hindered acid (Versatic 10 acid; -E{prime}{sub s} = 3.83) and an acid with low steric hindrance (3-cyclohexylpropanoic acid; -E{prime}{sub s} = 0.28). 14 refs., 13 figs., 3 tabs.

Preez, A.C. du; Preston, J.S. [Mintek, Randburg (South Africa)

1992-04-01T23:59:59.000Z

331

Law Update Cover 2,3 No More Spreading Lead  

E-Print Network [OSTI]

to customers by contractors, of the "Protect Your Family from Lead in Your Home" pamphlet, be- fore beginning because the lead tastes sweet, you need to readjust your thinking. Lead poisoning occurs across allINSIDE Law Update Cover 2,3 No More Spreading Lead Tip of the Month Page 4 Rental Unit Condition

Hutyra, Lucy R.

332

Southern California Leading EconomicSouthern California Leading EconomicSouthern California Leading EconomicSouthern California Leading Economic IndicatorIndicatorIndicatorIndicator Aug 2013 Center for Economic Analysis and Forecasting (CEAF), California  

E-Print Network [OSTI]

Southern California Leading EconomicSouthern California Leading EconomicSouthern California Leading EconomicSouthern California Leading Economic IndicatorIndicatorIndicatorIndicator Aug 2013 © Center for Economic Analysis and Forecasting (CEAF), California State University Fullerton Adrian R. Fleissig, Ph

de Lijser, Peter

333

Southern California Leading EconomicSouthern California Leading EconomicSouthern California Leading EconomicSouthern California Leading Economic IndicatorIndicatorIndicatorIndicator November 2013 Center for Economic Analysis and Forecasting (CEAF), Calif  

E-Print Network [OSTI]

Southern California Leading EconomicSouthern California Leading EconomicSouthern California Leading EconomicSouthern California Leading Economic IndicatorIndicatorIndicatorIndicator November 2013 © Center for Economic Analysis and Forecasting (CEAF), California State University Fullerton Adrian R. Fleissig, Ph

de Lijser, Peter

334

Southern California Leading EconomicSouthern California Leading EconomicSouthern California Leading EconomicSouthern California Leading Economic IndicatorIndicatorIndicatorIndicator November 2010 Institute for Economic and Environmental Studies (IEES), C  

E-Print Network [OSTI]

Southern California Leading EconomicSouthern California Leading EconomicSouthern California Leading EconomicSouthern California Leading Economic IndicatorIndicatorIndicatorIndicator November 2010 © Institute for Economic and Environmental Studies (IEES), California State University Fullerton Adrian R. Fleissig, Ph

de Lijser, Peter

335

Southern California Leading EconomicSouthern California Leading EconomicSouthern California Leading EconomicSouthern California Leading Economic IndicatorIndicatorIndicatorIndicator May 2012 Institute for Economic and Environmental Studies (IEES), Califo  

E-Print Network [OSTI]

Southern California Leading EconomicSouthern California Leading EconomicSouthern California Leading EconomicSouthern California Leading Economic IndicatorIndicatorIndicatorIndicator May 2012 © Institute for Economic and Environmental Studies (IEES), California State University Fullerton Adrian R. Fleissig, Ph

de Lijser, Peter

336

Southern California Leading EconomicSouthern California Leading EconomicSouthern California Leading EconomicSouthern California Leading Economic IndicatorIndicatorIndicatorIndicator November 2012 Institute for Economic and Environmental Studies (IEES), C  

E-Print Network [OSTI]

Southern California Leading EconomicSouthern California Leading EconomicSouthern California Leading EconomicSouthern California Leading Economic IndicatorIndicatorIndicatorIndicator November 2012 © Institute for Economic and Environmental Studies (IEES), California State University Fullerton Adrian R. Fleissig, Ph

de Lijser, Peter

337

Southern California Leading EconomicSouthern California Leading EconomicSouthern California Leading EconomicSouthern California Leading Economic IndicatorIndicatorIndicatorIndicator May 2011 Institute for Economic and Environmental Studies (IEES), Califo  

E-Print Network [OSTI]

Southern California Leading EconomicSouthern California Leading EconomicSouthern California Leading EconomicSouthern California Leading Economic IndicatorIndicatorIndicatorIndicator May 2011 © Institute for Economic and Environmental Studies (IEES), California State University Fullerton Adrian R. Fleissig, Ph

de Lijser, Peter

338

Southern California Leading EconomicSouthern California Leading EconomicSouthern California Leading EconomicSouthern California Leading Economic IndicatorIndicatorIndicatorIndicator November 2011 Institute for Economic and Environmental Studies (IEES), C  

E-Print Network [OSTI]

Southern California Leading EconomicSouthern California Leading EconomicSouthern California Leading EconomicSouthern California Leading Economic IndicatorIndicatorIndicatorIndicator November 2011 © Institute for Economic and Environmental Studies (IEES), California State University Fullerton Adrian R. Fleissig, Ph

de Lijser, Peter

339

Southern California Leading EconomicSouthern California Leading EconomicSouthern California Leading EconomicSouthern California Leading Economic IndicatorIndicatorIndicatorIndicator May 2014 Center for Economic Analysis and Forecasting (CEAF), California  

E-Print Network [OSTI]

Southern California Leading EconomicSouthern California Leading EconomicSouthern California Leading EconomicSouthern California Leading Economic IndicatorIndicatorIndicatorIndicator May 2014 © Center for Economic Analysis and Forecasting (CEAF), California State University Fullerton Adrian R. Fleissig, Ph

de Lijser, Peter

340

Southern California Leading EconomicSouthern California Leading EconomicSouthern California Leading EconomicSouthern California Leading Economic IndicatorIndicatorIndicatorIndicator August 2012 Institute for Economic and Environmental Studies (IEES), Cal  

E-Print Network [OSTI]

Southern California Leading EconomicSouthern California Leading EconomicSouthern California Leading EconomicSouthern California Leading Economic IndicatorIndicatorIndicatorIndicator August 2012 © Institute for Economic and Environmental Studies (IEES), California State University Fullerton Adrian R. Fleissig, Ph

de Lijser, Peter

Note: This page contains sample records for the topic "lead acid model" 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

Southern California Leading EconomicSouthern California Leading EconomicSouthern California Leading EconomicSouthern California Leading Economic IndicatorIndicatorIndicatorIndicator August 2011 Institute for Economic and Environmental Studies (IEES), Cal  

E-Print Network [OSTI]

Southern California Leading EconomicSouthern California Leading EconomicSouthern California Leading EconomicSouthern California Leading Economic IndicatorIndicatorIndicatorIndicator August 2011 © Institute for Economic and Environmental Studies (IEES), California State University Fullerton Adrian R. Fleissig, Ph

de Lijser, Peter

342

Southern California Leading EconomicSouthern California Leading EconomicSouthern California Leading EconomicSouthern California Leading Economic IndicatorIndicatorIndicatorIndicator February 2014 Center for Economic Analysis and Forecasting (CEAF), Calif  

E-Print Network [OSTI]

Southern California Leading EconomicSouthern California Leading EconomicSouthern California Leading EconomicSouthern California Leading Economic IndicatorIndicatorIndicatorIndicator February 2014 © Center for Economic Analysis and Forecasting (CEAF), California State University Fullerton Adrian R. Fleissig, Ph

de Lijser, Peter

343

Southern California Leading EconomicSouthern California Leading EconomicSouthern California Leading EconomicSouthern California Leading Economic IndicatorIndicatorIndicatorIndicator August 2014 Center for Economic Analysis and Forecasting (CEAF), Califor  

E-Print Network [OSTI]

Southern California Leading EconomicSouthern California Leading EconomicSouthern California Leading EconomicSouthern California Leading Economic IndicatorIndicatorIndicatorIndicator August 2014 © Center for Economic Analysis and Forecasting (CEAF), California State University Fullerton Adrian R. Fleissig, Ph

de Lijser, Peter

344

Synthesis of acid addition salt of delta-aminolevulinic acid from 5-bromo levulinic acid esters  

DOE Patents [OSTI]

A process of preparing an acid addition salt of delta-aminolevulinc acid comprising: a) dissolving a lower alkyl 5-bromolevulinate and hexamethylenetetramine in a solvent selected from the group consisting of water, ethyl acetate, chloroform, acetone, ethanol, tetrahydrofuran and acetonitrile, to form a quaternary ammonium salt of the lower alkyl 5-bromolevulinate; and b) hydrolyzing the quaternary ammonium salt with an inorganic acid to form an acid addition salt of delta-aminolevulinic acid.

Moens, Luc (Lakewood, CO)

2003-06-24T23:59:59.000Z

345

Lead(ii) Detection An Exceptionally Selective Lead(ii)-Regulatory  

E-Print Network [OSTI]

-spore- forming bacillus that flourishes in millimolar concentrations of toxic heavy metals.[12] It is the only that responds to lead(ii) ions with a high selectivity over other heavy metal ions. This has not been achieved developed for the detection of other small molecules, but with limited success for heavy metal ions

He, Chuan

346

Plant fatty acid hydroxylase  

DOE Patents [OSTI]

The present invention relates to the identification of nucleic acid sequences and constructs, and methods related thereto, and the use of these sequences and constructs to produce genetically modified plants for the purpose of altering the composition of plant oils, waxes and related compounds.

Somerville, Chris (Portola Valley, CA); van de Loo, Frank (Lexington, KY)

2000-01-01T23:59:59.000Z

347

Evaluation of lead/carbon devices for utility applications : a study for the DOE Energy Storage Program.  

SciTech Connect (OSTI)

This report describes the results of a three-phase project that evaluated lead-based energy storage technologies for utility-scale applications and developed carbon materials to improve the performance of lead-based energy storage technologies. In Phase I, lead/carbon asymmetric capacitors were compared to other technologies that used the same or similar materials. At the end of Phase I (in 2005) it was found that lead/carbon asymmetric capacitors were not yet fully developed and optimized (cost/performance) to be a viable option for utility-scale applications. It was, however, determined that adding carbon to the negative electrode of a standard lead-acid battery showed promise for performance improvements that could be beneficial for use in utility-scale applications. In Phase II various carbon types were developed and evaluated in lead-acid batteries. Overall it was found that mesoporous activated carbon at low loadings and graphite at high loadings gave the best cycle performance in shallow PSoC cycling. Phase III studied cost/performance benefits for a specific utility application (frequency regulation) and the full details of this analysis are included as an appendix to this report.

Walmet, Paula S. (MeadWestvaco Corporation,North Charleston, SC)

2009-06-01T23:59:59.000Z

348

Reactive Distillation for Esterification of Bio-based Organic Acids  

SciTech Connect (OSTI)

The following is the final report of the three year research program to convert organic acids to their ethyl esters using reactive distillation. This report details the complete technical activities of research completed at Michigan State University for the period of October 1, 2003 to September 30, 2006, covering both reactive distillation research and development and the underlying thermodynamic and kinetic data required for successful and rigorous design of reactive distillation esterification processes. Specifically, this project has led to the development of economical, technically viable processes for ethyl lactate, triethyl citrate and diethyl succinate production, and on a larger scale has added to the overall body of knowledge on applying fermentation based organic acids as platform chemicals in the emerging biorefinery. Organic acid esters constitute an attractive class of biorenewable chemicals that are made from corn or other renewable biomass carbohydrate feedstocks and replace analogous petroleum-based compounds, thus lessening U.S. dependence on foreign petroleum and enhancing overall biorefinery viability through production of value-added chemicals in parallel with biofuels production. Further, many of these ester products are candidates for fuel (particularly biodiesel) components, and thus will serve dual roles as both industrial chemicals and fuel enhancers in the emerging bioeconomy. The technical report from MSU is organized around the ethyl esters of four important biorenewables-based acids: lactic acid, citric acid, succinic acid, and propionic acid. Literature background on esterification and reactive distillation has been provided in Section One. Work on lactic acid is covered in Sections Two through Five, citric acid esterification in Sections Six and Seven, succinic acid in Section Eight, and propionic acid in Section Nine. Section Ten covers modeling of ester and organic acid vapor pressure properties using the SPEAD (Step Potential Equilibrium and Dynamics) method.

Fields, Nathan; Miller, Dennis J.; Asthana, Navinchandra S.; Kolah, Aspi K.; Vu, Dung; Lira, Carl T.

2008-09-23T23:59:59.000Z

349

Fatty acid-producing hosts  

DOE Patents [OSTI]

Described are hosts for overproducing a fatty acid product such as a fatty acid. The hosts include an exogenous nucleic acid encoding a thioesterase and, optionally, an exogenous nucleic acid encoding an acetyl-CoA carboxylase, wherein an acyl-CoA synthetase in the hosts are functionally delected. The hosts prefereably include the nucleic acid encoding the thioesterase at an intermediate copy number. The hosts are preferably recominantly stable and growth-competent at 37.degree. C. Methods of producing a fatty acid product comprising culturing such hosts at 37.degree. C. are also described.

Pfleger, Brian F; Lennen, Rebecca M

2013-12-31T23:59:59.000Z

350

Modelling  

E-Print Network [OSTI]

Modeling of technical machines became a standard technique since computer became powerful enough to handle the amount of data relevant to the specific system. Simulation of an existing physical device requires the knowledge of all relevant quantities. Electric fields given by the surrounding boundary as well as magnetic fields caused by coils or permanent magnets have to be known. Internal sources for both fields are sometimes taken into account, such as space charge forces or the internal magnetic field of a moving bunch of charged particles. Used solver routines are briefly described and some bench-marking is shown to estimate necessary computing times for different problems. Different types of charged particle sources will be shown together with a suitable model to describe the physical model. Electron guns are covered as well as different ion sources (volume ion sources, laser ion sources, Penning ion sources, electron resonance ion sources, and H$^-$-sources) together with some remarks on beam transport.

Spdtke, P

2013-01-01T23:59:59.000Z

351

Asthmatic responses to airborne acid aerosols  

SciTech Connect (OSTI)

Controlled exposure studies suggest that asthmatics may be more sensitive to the respiratory effects of acidic aerosols than individuals without asthma. This study investigates whether acidic aerosols and other air pollutants are associated with respiratory symptoms in free-living asthmatics. Daily concentrations of hydrogen ion (H+), nitric acid, fine particulates, sulfates and nitrates were obtained during an intensive air monitoring effort in Denver, Colorado, in the winter of 1987-88. A panel of 207 asthmatics recorded respiratory symptoms, frequency of medication use, and related information in daily diaries. We used a multiple regression time-series model to analyze which air pollutants, if any, were associated with health outcomes reported by study participants. Airborne H+ was found to be significantly associated with several indicators of asthma status, including moderate or severe cough and shortness of breath. Cough was also associated with fine particulates, and shortness of breath with sulfates. Incorporating the participants' time spent outside and exercise intensity into the daily measure of exposure strengthened the association between these pollutants and asthmatic symptoms. Nitric acid and nitrates were not significantly associated with any respiratory symptom analyzed. In this population of asthmatics, several outdoor air pollutants, particularly airborne acidity, were associated with daily respiratory symptoms.

Ostro, B.D.; Lipsett, M.J.; Wiener, M.B.; Selner, J.C. (California Department of Health Services, Berkeley (USA))

1991-06-01T23:59:59.000Z

352

Acidizing of Sandstone Reservoirs Using HF and Organic Acids  

E-Print Network [OSTI]

Mud acid, which is composed of HCl and HF, is commonly used to remove the formation damage in sandstone reservoirs. However, many problems are associated with HCl, especially at high temperatures. Formic-HF acids have served as an alternative...

Yang, Fei

2012-10-19T23:59:59.000Z

353

acid docosahexaenoic acid: Topics by E-print Network  

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

by USDA and U of I researchers Illinois at Urbana-Champaign, University of 38 Controlling acid rain MIT - DSpace Summary: High concentrations of sulfuric and nitric acid in raTn fn...

354

acid aspartic acid: Topics by E-print Network  

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

by USDA and U of I researchers Illinois at Urbana-Champaign, University of 20 Controlling acid rain MIT - DSpace Summary: High concentrations of sulfuric and nitric acid in raTn fn...

355

acid caffeic acid: Topics by E-print Network  

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

by USDA and U of I researchers Illinois at Urbana-Champaign, University of 11 Controlling acid rain MIT - DSpace Summary: High concentrations of sulfuric and nitric acid in raTn fn...

356

acid succinic acid: Topics by E-print Network  

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

simulated the laser heating of the succinic acid (this data is still simulation is that infrared heating generates about 10-15 more succinic acid molecules bound to the analyte...

357

acid benzoic acid: Topics by E-print Network  

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

by USDA and U of I researchers Illinois at Urbana-Champaign, University of 24 Controlling acid rain MIT - DSpace Summary: High concentrations of sulfuric and nitric acid in raTn fn...

358

acid propanoic acid: Topics by E-print Network  

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

by USDA and U of I researchers Illinois at Urbana-Champaign, University of 9 Controlling acid rain MIT - DSpace Summary: High concentrations of sulfuric and nitric acid in raTn fn...

359

acid oleic acid: Topics by E-print Network  

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

by USDA and U of I researchers Illinois at Urbana-Champaign, University of 31 Controlling acid rain MIT - DSpace Summary: High concentrations of sulfuric and nitric acid in raTn fn...

360

Macroencapsulation of lead and steel SWARF  

SciTech Connect (OSTI)

The treatability study to macroencapsulate radioactively contaminated lead and steel swarf (cuttings and/or chips)and chunks, a low level mixed waste, from the dismantlement of excess surplus uranium fuel handling and transfer casks was successful. Macroencapsulation is the land disposal restriction treatment standard for this waste form per 40 CFR 268.42 Table 3. An epoxy-based thermoset system was employed due to cracking failures of other types of thermoset systems. Bench scale tests were performed with a two-part epoxy (resin and hardener) using cast iron chips as a surrogate waste media. A two stage encapsulation process was employed in treating the swarf. Two liters of epoxy were added to a 2.8{ell} (3 qt) container of swarf under 51K Pa vacuum (-15-inch of Hg) during the first stage of the process. In this stage each individual particle or chip was wetted by epoxy and allowed to harden into an initial monolith. The second stage encapsulated the initial monolith with a secondary layer of epoxy forming a larger final monolith. By evacuating the air from the swarf and epoxy during the initial monolith encapsulation, a higher density (higher swarf to epoxy ratio) was achieved. Tensile and compressive strength tests were performed on samples and without any media (cast iron chips). The coupons were prepared from a series of monoliths featuring various mixtures ratios and vacuum levels. The tensile strength of epoxy without chips averaged 41M Pa (6000 psi) and 1.4M Pa (2000 psi) with cast iron chips. Compression strengths averaged 140M Pa (20,000 psi) without chips and 66.2M Pa (9600 psi) with cast iron chips.

Zirker, L.; Thiesen, T.; Tyson, D.; Beitel, G.

1995-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "lead acid model" 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

Acid Placement in Acid Jetting Treatments in Long Horizontal Wells  

E-Print Network [OSTI]

In the Middle East, extended reach horizontal wells (on the order of 25,000 feet of horizontal displacement) are commonly acid stimulated by jetting acid out of drill pipe. The acid is jetted onto the face of the openhole wellbore as the drill pipe...

Sasongko, Hari

2012-07-16T23:59:59.000Z

362

Acid placement and coverage in the acid jetting process  

E-Print Network [OSTI]

Many open-hole acid treatments are being conducted by pumping acid through jetting ports placed at the end of coiled tubing or drill pipe. The filter-cake on the bore-hole is broken by the jet; the acid-soluble material is dissolved, creating...

Mikhailov, Miroslav I.

2009-05-15T23:59:59.000Z

363

E-Print Network 3.0 - acid solutions including Sample Search...  

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

Collection: Chemistry 2 7, 53415364, 2007 Modelling the effect Summary: point. The surface tension of organic acid solutions is10 influenced by the solubility of the...

364

E-Print Network 3.0 - acid induced neurodegeneration Sample Search...  

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

agonist quinolinic acid (QA), and is a model of the selective neurodegeneration in HD (Beal et al. 1986... htt levels in vivo on the apoptotic neurodegeneration ... Source:...

365

On the nature and origin of acidic species in petroleum. 1. Detailed acid type distribution in a California crude oil.  

SciTech Connect (OSTI)

Acidity in crude oils has long been a problem for refining. Knowledge of the detailed chemical composition of the acids responsible for corrosion can facilitate identification of problem crude oils and potentially lead to improved processing options for corrosive oils. A highly aerobically biodegraded crude from the San Joaquin Valley, which has a long history of causing corrosion problems during refining, was the subject of this study. The oil was first extracted with base, then acidified and extracted with petroleum ether. A portion of the resulting acid fraction was methylated. The unmethylated extract was analyzed by FTIR, NMR, and the methylated sample was analyzed by high-resolution mass spectrometry (HRMS). Over 96% of the ions observed in HRMS have been assigned reliable formulas. Considerably greater functionality is seen in this sample than would be presumed from the 'naphthenic acid' title typically assigned to these species. Although over 60% of the compounds contained two or more oxygens, compounds containing only oxygen heteroatoms accounted for less than 10% of the acidic compounds identified. Approximately one-half of the species contained nitrogen and about one-fourth contained sulfur. It is believed that microbial degradation is a major source of these acidic components. It was also observed that acid species with higher degrees of heteroatom substitution generally also had a higher degree of saturation than those species having less heteroatoms, possibly due to impeded migration of highly substituted, less-saturated species.

Tomczyk, N. A.; Winans, R. E.; Shinn, J. H.; Robinson, R. C.; Chemistry; Chevron Research and Technology Co.

2001-11-21T23:59:59.000Z

366

QCD analysis and effective temperature of direct photons in lead-lead collisions at the LHC  

E-Print Network [OSTI]

We present a systematic theoretical analysis of the ALICE measurement of low-$p_T$ direct-photon production in central lead-lead collisions at the LHC with a centre-of-mass energy of $\\sqrt{s_{NN}}=2.76$ TeV. Using next-to-leading order of perturbative QCD, we compute the relative contributions to prompt-photon production from different initial and final states and the theoretical uncertainties coming from independent variations of the renormalisation and factorisation scales, the nuclear parton densities and the fragmentation functions. Based on different fits to the unsubtracted and prompt-photon subtracted ALICE data, we consistently find an exponential, possibly thermal, photon spectrum from the quark-gluon plasma (or hot medium) with slope $T=304\\pm 58$ MeV and $309\\pm64$ MeV at $p_T\\in[0.8;2.2]$ GeV and $p_T\\in[1.5;3.5]$ GeV as well as a power-law ($p_T^{-4}$) behavior for $p_T>4$ GeV as predicted by QCD hard scattering.

M. Klasen; C. Klein-Bsing; F. Knig; J. P. Wessels

2014-09-11T23:59:59.000Z

367

Recent results on electroweak probes in lead-lead and proton-lead collisions from the ATLAS Detector at the LHC  

E-Print Network [OSTI]

Photons and weak bosons do not interact strongly with the dense and hot medium formed in nuclear collisions, and thus they should be sensitive to the nuclear modification of parton distribution functions (nPDFs). In particular, proton-lead collisions provide an excellent opportunity to test nPDFs in a less dense environment than lead-lead. The ATLAS detector, optimized for searching new physics in proton-proton collisions, is especially well equipped to measure photons, Z and W bosons in the high occupancy environment produced in heavy ion collisions. Using the full data samples of 2.76 TeV lead-lead and 5.02 TeV proton-lead collisions we will present recent results on the prompt photon, Z and W boson yields as a function of centrality, transverse momentum and rapidity, from the ATLAS experiment. The binary collision scaling of the yields will be discussed in detail.

Brooks, William; The ATLAS collaboration

2015-01-01T23:59:59.000Z

368

Investigating acid rain  

SciTech Connect (OSTI)

A report is given of an address by Kathleen Bennett, Assistant Administrator of Air, Noise and Radiation, Environmental Protection Agency which was presented to the US Senate Committee on the Environment and Public Works. Bennet explained that in view of the many unknowns about acid rain, and the possible substantial cost burden of additional controls, EPA is proceeding with its program to investigate this environmental malady over a 10-year period. The three major areas of the research program are (1) transport, transformation, and deposition processes, (2) effects of acid deposition, and (3) assessments and policy studies. Other issues discussed were global transboundary air pollution and Senate amendments addressing long-range transport. (JMT)

Not Available

1981-01-01T23:59:59.000Z

369

Pantothenic acid biosynthesis in zymomonas  

DOE Patents [OSTI]

Zymomonas is unable to synthesize pantothenic acid and requires this essential vitamin in growth medium. Zymomonas strains transformed with an operon for expression of 2-dehydropantoate reductase and aspartate 1-decarboxylase were able to grow in medium lacking pantothenic acid. These strains may be used for ethanol production without pantothenic acid supplementation in seed culture and fermentation media.

Tao, Luan; Tomb, Jean-Francois; Viitanen, Paul V.

2014-07-01T23:59:59.000Z

370

Design of an Actinide-Burning, Lead or Lead-Bismuth Cooled Reactor that Produces Low-Cost Electricity  

SciTech Connect (OSTI)

The purpose of this Idaho National Engineering and Environmental Laboratory (INEEL) and Massachusetts Institute of Technology (MIT) University Research Consortium (URC) project is to investigate the suitability of lead or lead-bismuth cooled fast reactors for producing low-cost electricity as well as for actinide burning. The goal is to identify and analyze the key technical issues in core neutronics, materials, thermal-hydraulics, fuels, and economics associated with the development of this reactor concept. Work has been accomplished in four major areas of research: core neutronic design, material compatibility, plant engineering, and coolant activation. In the area of core neutronic design, the reactivity vs. burnup and discharge isotopics of both non-fertile and fertile fuels were evaluated. An innovative core for pure actinide burning that uses streaming, fertile-free fuel assemblies was studied in depth. This particular core exhibits excellent reactivity performance upon coolant voiding, even for voids that occur in the core center, and has a transuranic (TRU) destruction rate that is comparable to the proposed accelerator transmutation of waste (ATW) facility. These studies suggest that a core can be designed to achieve a long life while maintaining safety and minimizing waste. In the area of material compatibility studies, an experimental apparatus for the investigation of the flow-assisted dissolution and precipitation (corrosion) of potential fuel cladding and structural materials has been designed and built at the INEEL. The INEEL forced-convection corrosion cell consists of a small heated vessel with a shroud and gas flow system. The corrosion cell is being used to test steel that is commercially available in the United States to temperatures above 650C. Progress in plant engineering was made for two reactor concepts, one utilizing an indirect cycle with heat exchangers and the other utilizing a direct-contact steam cycle. The evaluation of the indirect cycle designs has investigated the effects of various parameters to increase electric production at full power. For the direct-contact reactor, major issues related to the direct-contact heat transfer rate and entrainment and carryover of liquid lead-bismuth to the turbine have been identified and analyzed. An economic analysis approach was also developed to determine the cost of electricity production in the lead-bismuth reactor. The approach will be formulated into a model and applied to develop scientific cost estimates for the different reactor designs and thus aid in the selection of the most economic option. In the area of lead-bismuth coolant activation, the radiological hazard was evaluated with particular emphasis on the direct-contact reactor. In this system, the lack of a physical barrier between the primary and secondary coolant favors the release of the alpha-emitter Po?210 and its transport throughout the plant. Modeling undertaken on the basis of the scarce information available in the literature confirmed the importance of this issue, as well as the need for experimental work to reduce the uncertainties on the basic characteristics of volatile polonium chemical forms.

Mac Donald, Philip Elsworth; Weaver, Kevan Dean; Davis, Cliff Bybee; MIT folks

2000-07-01T23:59:59.000Z

371

IMPROVED PROCESSES TO REMOVE NAPHTHENIC ACIDS  

SciTech Connect (OSTI)

In the second year of this project, we continued our effort to develop low temperature decarboxylation catalysts and investigate the behavior of these catalysts at different reaction conditions. We conducted a large number of dynamic measurements with crude oil and model compounds to obtain the information at different reaction stages, which was scheduled as the Task2 in our work plan. We developed a novel adsorption method to remove naphthenic acid from crude oil using naturally occurring materials such as clays. Our results show promise as an industrial application. The theoretical modeling proposed several possible reaction pathways and predicted the reactivity depending on the catalysts employed. From all of these studies, we obtained more comprehensive understanding about catalytic decarboxylation and oil upgrading based on the naphthenic acid removal concept.

Aihua Zhang; Qisheng Ma; Kangshi Wang, William A. Goddard, Yongchun Tang

2005-05-05T23:59:59.000Z

372

Solar Decathlon Team Leading the Way Toward Sustainable Living...  

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

Leading the Way Toward Sustainable Living, Even in the Wake of Disasters Solar Decathlon Team Leading the Way Toward Sustainable Living, Even in the Wake of Disasters August 18,...

373

COWBOYS OR COMMANDERS: DOES INFORMATION TECHNOLOGY LEAD TO DECENTRALIZATION?  

E-Print Network [OSTI]

COWBOYS OR COMMANDERS: DOES INFORMATION TECHNOLOGY LEAD TO DECENTRALIZATION? George M. Wyner Thomas) predicted that information technology would lead to the elimination of middle managers and to greater (Eds.), International Conference on Information Systems, Cleveland, International Conference

374

HYDROFLUORIC ACID Safety Office  

E-Print Network [OSTI]

or fluorocarbon plastic, lead, or platinum. Place storage bottles in polyethylene secondary containment trays to an absorbent and place in a plastic container for disposal. Wash the spill site with a sodium bicarbonate-up materials. Spill clean-up materials must be placed in a plastic container. #12;Spills 3M's Universal

Davis, Lloyd M.

375

Hypersonic aerospace vehicle leading-edge cooling using heat-pipe, transpiration and film-cooling techniques  

SciTech Connect (OSTI)

The feasibility of cooling hypersonic-vehicle leading-edge structures exposed to severe aerodynamic surface heat fluxes was studied, using a combination of liquid-metal heat pipes and surface-mass-transfer cooling techniques. A generalized, transient, finite-difference-based hypersonic leading-edge cooling model was developed that incorporated these effects and was demonstrated on an assumed aerospace plane-type wing leading edge section and a SCRAMJET engine inlet leading-edge section. The hypersonic leading-edge cooling model was developed using an existing, experimentally verified heat-pipe model. Then the existing heat-pipe model was modified by adding both transpiration and film-cooling options as new surface boundary conditions. The models used to predict the leading-edge surface heat-transfer reduction effects of the transpiration and film cooling were modifications of more-generalized, empirically based models obtained from the literature. It is concluded that cooling leading-edge structures exposed to severe hypersonic-flight environments using a combination of liquid-metal heat pipe, surface transpiration, and film cooling methods appears feasible.

Modlin, J.M.

1991-01-01T23:59:59.000Z

376

Analysis of leaded and unleaded gasoline pricing. Final report  

SciTech Connect (OSTI)

This report summarizes the evaluation of the cost price relation between the two fuels. The original scope of work identified three separate categories of effort: Gather and organize available data on the wholesale and retail prices of gasoline at a national level for the past 5 years. Using the data collected in Subtask 1, develop models of pricing practices that aid in explaining retail markups and price differentials for different types and grades of gasoline at different retail outlets in the current gasoline market. Using the data from Subtask 1 and the analysis framework from Subtask 2, analyze the likely range of future retail markups and price differentials for different grades of leaded and unleaded gasoline. The report is organized in a format that is different than suggested by the subtasks outlined above. The first section provides a characterization of the problem - data available to quantify cost and price of the fuels as well as issues that directly affect this relationship. The second section provides a discussion of issues likely to affect this relation in the future. The third section postulates a model that can be used to quantify the relation between fuels, octane levels, costs and prices.

Not Available

1985-03-15T23:59:59.000Z

377

Lead-Free Surface Finishes for Electronic Components  

E-Print Network [OSTI]

Lead-Free Surface Finishes for Electronic Components: Tin Whisker Growth METALS This project degraded by the switch to lead- free technology. In particular, the state of compressive stress and the localized creep response (whisker growth) of tin-based lead-free electrodeposits are being measured

378

THE LEAD AND COPPER RULE Anne Sandvig, HDR-EES  

E-Print Network [OSTI]

THE LEAD AND COPPER RULE Anne Sandvig, HDR-EES 2008 Historical Background The 1986 Safe Drinking districts and was not mandated. In 1991, the USEPA finalized the Lead and Copper Rule (LCR) in response components and by August 1998 manufacturers were required to comply. The Lead and Copper Rule #12;The USEPA

Maynard, J. Barry

379

Technical Note Ultrasound Probe with Integrated ECG Lead: Feasibility Study  

E-Print Network [OSTI]

Technical Note Ultrasound Probe with Integrated ECG Lead: Feasibility Study ARCHANA RAMIREDDY 27708 stephen.w.smith@duke.edu We integrated electrocardiogram (ECG) leads onto the face of a cardiac of devices needed to col- lect cardiac information. Since the ECG leads were not placed on their standard

Smith, Stephen

380

Lead contamination around a kindergarten near a battery recycling plant  

SciTech Connect (OSTI)

Lead poisoning has been noticed for more than a thousand years. Increased lead absorption and/or impaired neurobehavioral function among children who lived nearby lead smelters were reported in many different countries. In November of 1987, a worker from a lead battery recycling smelter suffered from anemia and bilateral weakness of his extremities. He was diagnosed as lead poisoning at the National Taiwan University Hospital (NTUH). A subsequent epidemiological survey of the workers from this recycling smelter showed that 31 out of 64 who came for a medical examination suffered from lead poisoning. Since there was a kindergarten next to the factory, we performed this study to determine whether there was an increased lead absorption among children of the exposed kindergarten and its association with the extent of air and soil pollution in the surrounding area. 12 refs., 1 fig., 4 tabs.

Jung-Der Wang; Chang-Sheng Jang; Yaw-Huei Hwang; Zueng-Sang Chen [National Taiwan Univ. (China)

1992-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "lead acid model" 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

Domain wall motion and electromechanical strain in lead-free piezoelectrics: Insight from the model system (1 ? x)Ba(Zr{sub 0.2}Ti{sub 0.8})O{sub 3}x(Ba{sub 0.7}Ca{sub 0.3})TiO{sub 3} using in situ high-energy X-ray diffraction during application of electric fields  

SciTech Connect (OSTI)

The piezoelectric compositions (1 ? x)Ba(Zr{sub 0.2}Ti{sub 0.8})O{sub 3}x(Ba{sub 0.7}Ca{sub 0.3})TiO{sub 3} (BZT-xBCT) span a model lead-free morphotropic phase boundary (MPB) between room temperature rhombohedral and tetragonal phases at approximately x?=?0.5. In the present work, in situ X-ray diffraction measurements during electric field application are used to elucidate the origin of electromechanical strain in several compositions spanning the tetragonal compositional range 0.6???x???0.9. As BCT concentration decreases towards the MPB, the tetragonal distortion (given by c/a-1) decreases concomitantly with an increase in 90 domain wall motion. The increase in observed macroscopic strain is predominantly attributed to the increased contribution from 90 domain wall motion. The results demonstrate that domain wall motion is a significant factor in achieving high strain and piezoelectric coefficients in lead-free polycrystalline piezoelectrics.

Tutuncu, Goknur [Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611 (United States); Li, Binzhi [Department of Chemical Engineering and Materials Science, University of California, Davis, Davis, California 95616 (United States); Bowman, Keith [Illinois Institute of Technology, Armour College of Engineering, Chicago, Illinois 60616 (United States); School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907 (United States); Jones, Jacob L., E-mail: JacobJones@ncsu.edu [Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695 (United States)

2014-04-14T23:59:59.000Z

382

Improved Processes to Remove Naphthenic Acids  

SciTech Connect (OSTI)

In the past three years, we followed the work plan as we suggested in the proposal and made every efforts to fulfill the project objectives. Based on our large amount of creative and productive work, including both of experimental and theoretic aspects, we received important technical breakthrough on naphthenic acid removal process and obtained deep insight on catalytic decarboxylation chemistry. In detail, we established an integrated methodology to serve for all of the experimental and theoretical work. Our experimental investigation results in discovery of four type effective catalysts to the reaction of decarboxylation of model carboxylic acid compounds. The adsorption experiment revealed the effectiveness of several solid materials to naphthenic acid adsorption and acidity reduction of crude oil, which can be either natural minerals or synthesized materials. The test with crude oil also received promising results, which can be potentially developed into a practical process for oil industry. The theoretical work predicted several possible catalytic decarboxylation mechanisms that would govern the decarboxylation pathways depending on the type of catalysts being used. The calculation for reaction activation energy was in good agreement with our experimental measurements.

Aihua Zhang; Qisheng Ma; Kangshi Wang; Yongchun Tang; William A. Goddard

2005-12-09T23:59:59.000Z

383

Cytotoxicity of lead on oligodendroglia, astroglia, and meningeal fibroblasts in culture: effects on viability and glycerolphosphate dehydrogenase activity  

E-Print Network [OSTI]

acid incorporation by meningeal fibroblasts. 10. GPDH activity of mixed glial cultures . 36 (units/culture dish). 37 11 ~ GPDH activity of mixed glial cultures (units/mg protein). 37 12. GPDH activity of oligodendroglial cultures (units.../culture dish) . . 39 13. GPDH activity of oligodendroglial cultures (units/mg protein). ~ . 39 INTRODUCTION Lead (Pb) poisoning is one of the earliest occu- pational diseases to be identified. In the United States, potential health hazards are created...

Wu, Jo-Nan

1986-01-01T23:59:59.000Z

384

Automated next-to-leading order predictions for colored scalar production at the LHC  

E-Print Network [OSTI]

We explore scenarios beyond the Standard Model where new colored scalar particles can be pair produced in hadron collisions. Using simplified models to describe the new field interactions with the Standard Model, we present precision predictions for the LHC by automatically matching next-to-leading order matrix elements with parton showers within the MadGraph5 aMC@NLO framework. We illustrate in this way, for the first time in our field, the full automation of Monte Carlo event generation at the next-to-leading order accuracy in QCD for new physics theories with an extended colored sector, the sole inputs being the model Lagrangian and the process of interest.

Cline Degrande; Benjamin Fuks; Valentin Hirschi; Josselin Proudom; Hua-Sheng Shao

2014-12-17T23:59:59.000Z

385

Kaolinite and Lead in Saturated Porous Media: Facilitated and Impeded Transport  

E-Print Network [OSTI]

of contaminants in the media. Lead Pb is a toxic heavy metal commonly found in the en- vironment. Recent studies-facilitated contaminant transport in saturated porous media. A clay colloid kaolinite and a heavy-metal contaminant Pb models; Water treatment; Water pollution; Experimentation. Author keywords: Colloid; Colloid

Ma, Lena

386

acid acetic acid: Topics by E-print Network  

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

of asphaltene deposition that occurs during acid treatments of oil reservoirs. Asphaltenes are present to some degree in most hydrocarbons. Due to the molecular weight of the...

387

Hydrogen Bond Switching among Flavin and Amino Acids Determines the Nature of Proton-Coupled Electron Transfer in BLUF  

E-Print Network [OSTI]

Hydrogen Bond Switching among Flavin and Amino Acids Determines the Nature of Proton results from a hydrogen bond switch between the flavin and its surrounding amino acids that preconfigures a rearrangement of the hydrogen bond network around the flavin takes place leading to a 10-15 nm red shift

van Stokkum, Ivo

388

On the initial phenomena occurring in lead/lead collisions at relativistic energies  

E-Print Network [OSTI]

A new study of the initial phenomena occurring in the fireball should confirm the predicted creation of a new state of nuclear matter having a lifetime of 0.17 yoctosecond and releasing an energy of 3.87 GeV. The energy-time uncertainty relation might be connected with an up to now unsuspected momentum-position uncertainty relation holding in a three-dimensional time. This new point of view leads to the interpretation of the charge of a particle as being a rotational motion in time, to a new interpretation of inertia, and to a new interpretation of the color of a particle. The transverse momentum observed in the study of the fireball might be the signature of this motion in time of the charge.

C. Ythier; G. Mouze

2012-12-18T23:59:59.000Z

389

Field analysis of arsenic and lead in soils at a former smelter facility  

SciTech Connect (OSTI)

Field X-ray fluorescence (XRF) chemical analyses were performed to efficiently and cost-effectively evaluate arsenic and lead concentrations in soils as part of CERCLA-driven remedial investigations at a former lead smelter. Sample preparation and analysis protocols, including extensive quality control (QC) requirements, were developed for the field XRF method that were accepted by the US Environmental Protection Agency and other regulatory agencies. Over 800 soil samples from approximately 150 borings and test pits were analyzed using the field XRF technique during a three-week period. Measured arsenic and lead concentrations ranged over several orders of magnitude. Costs for using the field XRF technique were about 60 to 70% of the costs for traditional wet chemistry (acid digestion and spectrophotometric analysis) methods, which were also used to analyze selected samples for verification. Split samples analyzed during and immediately after the field investigation showed a good correlation between soil concentrations obtained using field XRF methods and concentrations obtained using laboratory analysis (both XRF and wet chemistry). Correlation coefficients (r{sup 2}) for split samples compared using linear regression ranged from 0.832 to 0.995. Split-sample comparisons were generally better at lower soil concentrations (<10,000 ppm arsenic, <15,000 ppm lead). Duplicate, blank, and control standard results for the field XRF method were within limits typically achieved by laboratory-based systems. Preparation study results suggested that increased levels of soil-sample preparation may not significantly improve data comparability. Overall, results indicated that the field XRF technique is a dependable method for screening-level investigations in which solids are differentiated based on order-of-magnitude differences in arsenic and (or) lead concentrations. The field XRF method allowed rapid turnaround of analytical results while achieving data quality and comparability goals acceptable for a CERCLA remedial investigation.

Wallis, C.M.; Walker, M.T.

1999-07-01T23:59:59.000Z

390

Acidic gas capture by diamines  

DOE Patents [OSTI]

Compositions and methods related to the removal of acidic gas. In particular, the present disclosure relates to a composition and method for the removal of acidic gas from a gas mixture using a solvent comprising a diamine (e.g., piperazine) and carbon dioxide. One example of a method may involve a method for removing acidic gas comprising contacting a gas mixture having an acidic gas with a solvent, wherein the solvent comprises piperazine in an amount of from about 4 to about 20 moles/kg of water, and carbon dioxide in an amount of from about 0.3 to about 0.9 moles per mole of piperazine.

Rochelle, Gary (Austin, TX); Hilliard, Marcus (Missouri City, TX)

2011-05-10T23:59:59.000Z

391

Time-integrated blood lead concentration is a valid surrogate for estimating the cumulative lead dose assessed by tibial lead measurement  

SciTech Connect (OSTI)

The concentration of lead in tibia (Pb-T) was measured in vivo by a {sup 109}Cd K-shell X-ray fluorescence technique in 123 workers from a primary lead smelter (age: mean, 45 years; range, 30-61; duration of employment: mean, 20 years; range, 7-45). Their cumulative blood lead index (CBLI) was also calculated on the basis of the blood lead (Pb-B) records available from the company`s medical files. Geometric mean for Pb-T was 49 {mu}g Pb/g bone mineral (range, 15-167). The company`s health surveillance programs, implemented since 1945, resulted in Pb-B values which rarely exceeded 70 {mu}g Pb/dl whole blood. Pb-B at the time of Pb-T measurement averaged 31 {mu}g Pb/dl (range, 6-62) and the geometric mean for CBLI amounted to 803 {mu}g Pb/dl x year (range, 220-2130). Despite various assumptions and uncertainties inherent in the assessment of the cumulative lead dose through Pb-T measurement or CBLI calculation, the relation between both variables in the present lead smelter population is very strong (r{sub pearson}= 0.80, P <0.0001; age explained at the most 9.5% of the variance). The slope of the regression equation of log Pb-T vs log CBLI showed that a doubling of CBLI also corresponds to a doubling of Pb-t. It may be concluded that a sound calculation of CBLI represents a valid surrogate for estimating the life time integrated dose of lead as assessed by the measurement of cortical bone lead (e.g., in tibia). 23 refs., 2 figs., 3 tabs.

Roels, H.; Konings, J.; Lauwerys, R. [Medical School of the Catholic Univ. of Louvain, Brussels (Belgium)] [and others] [Medical School of the Catholic Univ. of Louvain, Brussels (Belgium); and others

1995-05-01T23:59:59.000Z

392

Sec. Herrington Leads Delegation in Response to Chernobyl Accident...  

National Nuclear Security Administration (NNSA)

Herrington leads U.S. delegation to Special Session of the International Atomic Energy Agency General Conference in Vienna, Austria, to discuss measures to strengthen...

393

West Africa Emerges as Leading Region in Africa for Renewable...  

Open Energy Info (EERE)

West Africa Emerges as Leading Region in Africa for Renewable Energy and Energy Efficiency Home > Groups > Clean and Renewable Energy Dc's picture Submitted by Dc(107) Contributor...

394

United States Department Of The Navy Geothermal Exploration Leading...  

Open Energy Info (EERE)

Navy Geothermal Exploration Leading To Shallow And Intermediate-Deep Drilling At Hawthorne Ammunition Depot, Hawthorne, Nv Jump to: navigation, search OpenEI Reference LibraryAdd...

395

Researchers hope better catalysts lead to better ways of converting...  

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

Researchers hope better catalysts lead to better ways of converting biomass to fuel By Jared Sagoff * August 7, 2013 Tweet EmailPrint ARGONNE, Ill. - Scientists and entrepreneurs...

396

adult mice leads: Topics by E-print Network  

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

tell parents Internet -While adults worry about unknowns, teens bond and learn social and lead- Computer Technologies and Information Sciences Websites Summary: Kid online? Relax,...

397

anterior resection leading: Topics by E-print Network  

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

ear, High grade mucoepidermoid carcinoma, Temporal bone resection unknown authors 59 LEAD POISONING PREVENTION INFORMATION Environmental Sciences and Ecology Websites Summary:...

398

aureus pneumonia leading: Topics by E-print Network  

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

words, phrases, or symbols indicated by the clue. When you think you Sherriff, Mark S. 92 LEAD POISONING PREVENTION INFORMATION Environmental Sciences and Ecology Websites Summary:...

399

adrenal medulla leads: Topics by E-print Network  

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

Inga Voges; Friedrich Pahlke; Christoph Dodt; Peter Dominiak; Olaf Jhren 2006-01-01 67 LEAD POISONING PREVENTION INFORMATION Environmental Sciences and Ecology Websites Summary:...

400

The Global Anthropogenic Lead Experiment Earth, Atmospheric and Planetary Sciences  

E-Print Network [OSTI]

, coal combustion, incineration, cement manufacture). · Leaded gasoline utilization creates fine activities (smelting, coal burning, etc.) · Incineration -------------------------- · "Tin" can solder seams

Einat, Aharonov

Note: This page contains sample records for the topic "lead acid model" 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

A leading index of drilling activity: Update and improvements  

SciTech Connect (OSTI)

A five-component composite leading index of United States rotary rig drilling activity is updated. The index is presented for 1949 through April 1986 and is shown to consistently lead turning points in drilling activity. Seven new leading indices based on some new components are also presented. A forecast of drilling activity is made for the remainder of 1986 based on the leading index and the current economic condition of the petroleum industry. The methods used to prepare time series and construct indices are reviewed.

Buell, R.S.; Maurer, R.A.

1986-01-01T23:59:59.000Z

402

Automated portable analyzer for lead(II) based on sequential...  

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

flow technique which required minimal volume of samples and reagents and allowed the automation of the analyzer operation. The portable analyzer was evaluated for lead (Pb)...

403

Energy Data Management Lead-by-Example Resources  

Broader source: Energy.gov [DOE]

State and local governments can lead by example by promoting energy efficiency programs and policies for public facilities, equipment, and government operations.

404

NERSC Leads Next-Generation Code Optimization Effort  

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

Leads Next-Generation Code Optimization Effort NERSC Launches Next-Generation Code Optimization Effort NERSC, Intel, Cray team up to prepare users for transition to exascale...

405

Paul Langan to lead ORNL's Neutron Sciences Directorate | ornl...  

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

science activities, which include two leading DOE Office of Science user facilities for neutron scattering analysis: The Spallation Neutron Source (SNS) and the High Flux Isotope...

406

Macro-ions collapse leading to hybrid bio-nanomaterials.  

SciTech Connect (OSTI)

I used supramolecular self-assembling cyanine and the polyamine spermine binding to Escherichia coli genomic DNA as a model for DNA collapse during high throughput screening. Polyamine binding to DNA converts the normally right handed B-DNA into left handed Z-DNA conformation. Polyamine binding to DNA was inhibited by the supramolecular self-assembling cyanine. Self-assembly of cyanine upon DNA scaffold was likewise competitively inhibited by spermine as signaled by fluorescence quench from DNA-cyanine ensemble. Sequence of DNA exposure to cyanine or spermine was critical in determining the magnitude of fluorescence quench. Methanol potentiated spermine inhibition by >10-fold. The IC{sub 50} for spermine inhibition was 0.35 {+-} 0.03 {micro}M and the association constant Ka was 2.86 x 10{sup -6}M. Reversibility of the DNA-polyamine interactions was evident from quench mitigation at higher concentrations of cyanine. System flexibility was demonstrated by similar spermine interactions with {lambda}DNA. The choices and rationale regarding the polyamine, the cyanine dye as well as the remarkable effects of methanol are discussed in detail. Cyanine might be a safer alternative to the mutagenic toxin ethidium bromide for investigating DNA-drug interactions. The combined actions of polyamines and alcohols mediate DNA collapse producing hybrid bio-nanomaterials with novel signaling properties that might be useful in biosensor applications. Finally, this work will be submitted to Analytical Sciences (Japan) for publication. This journal published our earlier, related work on cyanine supramolecular self-assembly upon a variety of nucleic acid scaffolds.

Achyuthan, Komandoor E.

2009-10-01T23:59:59.000Z

407

An Insoluble Titanium-Lead Anode for Sulfate Electrolytes  

SciTech Connect (OSTI)

The project is devoted to the development of novel insoluble anodes for copper electrowinning and electrolytic manganese dioxide (EMD) production. The anodes are made of titanium-lead composite material produced by techniques of powder metallurgy, compaction of titanium powder, sintering and subsequent lead infiltration. The titanium-lead anode combines beneficial electrochemical behavior of a lead anode with high mechanical properties and corrosion resistance of a titanium anode. In the titanium-lead anode, the titanium stabilizes the lead, preventing it from spalling, and the lead sheathes the titanium, protecting it from passivation. Interconnections between manufacturing process, structure, composition and properties of the titanium-lead composite material were investigated. The material containing 20-30 vol.% of lead had optimal combination of mechanical and electrochemical properties. Optimal process parameters to manufacture the anodes were identified. Prototypes having optimized composition and structure were produced for testing in operating conditions of copper electrowinning and EMD production. Bench-scale, mini-pilot scale and pilot scale tests were performed. The test anodes were of both a plate design and a flow-through cylindrical design. The cylindrical anodes were composed of cylinders containing titanium inner rods and fitting over titanium-lead bushings. The cylindrical design allows the electrolyte to flow through the anode, which enhances diffusion of the electrolyte reactants. The cylindrical anodes demonstrate higher mass transport capabilities and increased electrical efficiency compared to the plate anodes. Copper electrowinning represents the primary target market for the titanium-lead anode. A full-size cylindrical anode performance in copper electrowinning conditions was monitored over a year. The test anode to cathode voltage was stable in the 1.8 to 2.0 volt range. Copper cathode morphology was very smooth and uniform. There was no measurable anode weight loss during this time period. Quantitative chemical analysis of the anode surface showed that the lead content after testing remained at its initial level. No lead dissolution or transfer from the anode to the product occurred.A key benefit of the titanium-lead anode design is that cobalt additions to copper electrolyte should be eliminated. Cobalt is added to the electrolyte to help stabilize the lead oxide surface of conventional lead anodes. The presence of the titanium intimately mixed with the lead should eliminate the need for cobalt stabilization of the lead surface. The anode should last twice as long as the conventional lead anode. Energy savings should be achieved due to minimizing and stabilizing the anode-cathode distance in the electrowinning cells. The anode is easily substitutable into existing tankhouses without a rectifier change.The copper electrowinning test data indicate that the titanium-lead anode is a good candidate for further testing as a possible replacement for a conventional lead anode. A key consideration is the cost. Titanium costs have increased. One of the ways to get the anode cost down is manufacturing the anodes with fewer cylinders. Additional prototypes having different number of cylinders were constructed for a long-term commercial testing in a circuit without cobalt. The objective of the testing is to evaluate the need for cobalt, investigate the effect of decreasing the number of cylinders on the anode performance, and to optimize further the anode design in order to meet the operating requirements, minimize the voltage, maximize the life of the anode, and to balance this against a reasonable cost for the anode. It is anticipated that after testing of the additional prototypes, a whole cell commercial test will be conducted to complete evaluation of the titanium-lead anode costs/benefits.

Ferdman, Alla

2005-05-11T23:59:59.000Z

408

Application of the Software as a Service Model to the Control of Complex Building Systems  

E-Print Network [OSTI]

Zinc-bromine flow battery (%) Heat storage (%) Chargingyears) Lead-acid battery Generic heat storage Zinc-bromineInput to Battery Electricity Load without Storage Figure 9.

Stadler, Michael

2012-01-01T23:59:59.000Z

409

Know Stroke Stroke is the third leading cause of  

E-Print Network [OSTI]

#12;Know Stroke Stroke is the third leading cause of death in the United States and a leading cause of serious, long-term disability in adults. About 600,000 new strokes are reported in the U.S. each year. The good news is that treatments are available that can greatly reduce the damage caused by a stroke

Bandettini, Peter A.

410

Biosorption of Lead and Nickel by Biomass of Marine Algae  

E-Print Network [OSTI]

Biosorption of Lead and Nickel by Biomass of Marine Algae Z.R. Holan and B. Volesky" Department 22, 1993 Screening tests of different marine algae biomass types revealed a high passive biosorptive uptake of lead up to 270 mg Pb/g of biomass in some brown marine algae. Members of the order Fucales

Volesky, Bohumil

411

Following Germany's Lead: Using International Monetary Linkages to Estimate  

E-Print Network [OSTI]

Following Germany's Lead: Using International Monetary Linkages to Estimate the Effect of Monetary to countries with the weakest economic ties to Germany. We thank participants at the 2004 NBER Summer Workshop (2001). 2 Many European countries followed Germany's lead in setting their monetary policy during our

Sadoulet, Elisabeth

412

A Study of Lead Ingot Cargoes from Ancient Mediterranean Shipwrecks  

E-Print Network [OSTI]

Lead is often relegated to a footnote or sidebar in the study of ancient metals. However, the hundreds of lead ingots discovered in underwater sites over the past half-century have attested to the widespread production and trade of this utilitarian...

Brown, Heather Gail

2011-10-21T23:59:59.000Z

413

FINAL LEAD COMMISSIONER REPORT 2012 INTEGRATED ENERGY POLICY  

E-Print Network [OSTI]

FINAL LEAD COMMISSIONER REPORT 2012 INTEGRATED ENERGY POLICY REPORT UPDATE CALIFORNIA COMMISSION Carla J. Peterman Lead Commissioner, Integrated Energy Policy Report Robert P. Oglesby Executive was prepared under the 2012 Integrated Energy Policy Report proceeding, Docket #12-IEP-1A. The final report

414

assassination bullet lead: Topics by E-print Network  

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

assassination bullet lead First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 August 2014 Lead isotopes and...

415

Partially Extracted Defibrillator Coils and Pacing Leads Alter Defibrillation Thresholds  

E-Print Network [OSTI]

effect on DFTs. Introduction: Sudden cardiac death is the leading cause of death in the United States with 325,000 deaths per year. This translates to 1,000 deaths per day or 1 death every two minutes.1 USA Summary: Abandoned ICD coils and pacing leads provide a conductor substrate for electric field

Utah, University of

416

Method for fabricating fan-fold shielded electrical leads  

DOE Patents [OSTI]

Fan-folded electrical leads made from copper cladded Kapton, for example, with the copper cladding on one side serving as a ground plane and the copper cladding on the other side being etched to form the leads. The Kapton is fan folded with the leads located at the bottom of the fan-folds. Electrical connections are made by partially opening the folds of the fan and soldering, for example, the connections directly to the ground plane and/or the lead. The fan folded arrangement produces a number of advantages, such as electrically shielding the leads from the environment, is totally non-magnetic, and has a very low thermal conductivity, while being easy to fabricate. 3 figures.

Rohatgi, R.R.; Cowan, T.E.

1994-12-27T23:59:59.000Z

417

Method for fabricating fan-fold shielded electrical leads  

DOE Patents [OSTI]

Fan-folded electrical leads made from copper cladded Kapton, for example, with the copper cladding on one side serving as a ground plane and the copper cladding on the other side being etched to form the leads. The Kapton is fan folded with the leads located at the bottom of the fan-folds. Electrical connections are made by partially opening the folds of the fan and soldering, for example, the connections directly to the ground plane and/or the lead. The fan folded arrangement produces a number of advantages, such as electrically shielding the leads from the environment, is totally non-magnetic, and has a very low thermal conductivity, while being easy to fabricate.

Rohatgi, Rajeev R. (Mountain View, CA); Cowan, Thomas E. (Livermore, CA)

1994-01-01T23:59:59.000Z

418

Development of lead-free solders for hybrid microcircuits  

SciTech Connect (OSTI)

Extensive work has been conducted by industry to develop lead-free solders for electronics applications. The driving force behind this effort is pressure to ban or tax the use of lead-bearing solders. There has been further interest to reduce the use of hazardous chemical cleaners. Lead-free soldering and low-residue, ``no clean`` assembly processing are being considered as solutions to these environmental issues. Most of the work has been directed toward commercial and military printed wiring board (PWB) technology, although similar problems confront the hybrid microcircuit (HMC) industry, where the development of lead-free HMC solders is generally lagging. Sandia National Laboratories is responsible for designing a variety of critical, high reliability hybrid components for radars. Sandia has consequently initiated a project, as part of its Environmentally Conscious Manufacturing program, to develop low-residue, lead-free soldering for HMCs. This paper discusses the progress of that work.

Hosking, F.M.; Vianco, P.T.; Frear, D.R.; Robinson, D.G.

1996-01-01T23:59:59.000Z

419

Retrofit wall system for insulation and lead encasement in older multi-family housing.  

SciTech Connect (OSTI)

This paper presents an approach to modernization or rehabilitation of buildings with uninsulated masonry walls that have lead-based paint hazards or deteriorated plaster walls. The approach provides a solution to lead contamination on the walls, increased energy efficiency and comfort improvements associated with better insulated building envelopes. The system sheaths or replaces damaged or contaminated walls with a tight, well-insulated, durable interior surface. The costs of this system are estimated to be less than those of other insulated wall systems. Modeling of the impact of this system shows significant improvement in energy performance. The energy savings over the life of this durable system contribute to significantly offset the often-times sizeable cost of lead hazard remediation.

Wendt, R. L.

1998-08-11T23:59:59.000Z

420

Lead Slowing Down Spectrometer FY2013 Annual Report  

SciTech Connect (OSTI)

Executive Summary The Lead Slowing Down Spectrometry (LSDS) project, funded by the Materials Protection And Control Technology campaign, has been evaluating the feasibility of using LSDS techniques to assay fissile isotopes in used nuclear fuel assemblies. The approach has the potential to provide considerable improvement in the assay of fissile isotopic masses in fuel assemblies compared to other non-destructive techniques in a direct and independent manner. This report is a high level summary of the progress completed in FY2013. This progress included: Fabrication of a 4He scintillator detector to detect fast neutrons in the LSDS operating environment. Testing of the detector will be conducted in FY2014. Design of a large area 232Th fission chamber. Analysis using the Los Alamos National Laboratory perturbation model estimated the required number of neutrons for an LSDS measurement to be 10 to the 16th source neutrons. Application of the algorithms developed at Pacific Northwest National Laboratory to LSDS measurement data of various fissile samples conducted in 2012. The results concluded that the 235U could be measured to 2.7% and the 239Pu could be measured to 6.3%. Significant effort is yet needed to demonstrate the applicability of these algorithms for used-fuel assemblies, but the results reported here are encouraging in demonstrating that we are making progress toward that goal. Development and cost-analysis of a research plan for the next critical demonstration measurements. The plan suggests measurements on fresh fuel sub assemblies as a means to experimentally test self-attenuation and the use of fresh mixed-oxide fuel as a means to test simultaneous measurement of 235U and 239Pu.

Warren, Glen A.; Kulisek, Jonathan A.; Gavron, Victor A.; Danon, Yaron; Weltz, Adam; Harris, Jason; Stewart, T.

2013-10-29T23:59:59.000Z

Note: This page contains sample records for the topic "lead acid model" 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

Over Expression of the CMP-sialic Acid Transporter in Chinese Hamster Ovary Cells Leads to Increased Sialylation  

E-Print Network [OSTI]

Most glyco-engineering approaches used to improve quality of recombinant glycoproteins involve the manipulation of glycosyltransferase and/or glycosidase expression. We investigated whether the over expression of nucleotide ...

Wong, Niki S.C.

422

Research, development, and demonstration of lead-acid batteries for electric-vehicle propulsion. Annual report, 1981  

SciTech Connect (OSTI)

The progress of the design and development program is detailed. Results of drop tests, characteristics tests, and life cycle tests are presented and discussed. Results of tests of mechanical agitation of the electrolyte by air bubbling and an air lift pump are reported. Work on the electrode designs and electrolyte circulation systems is reported. (WHK)

None

1982-03-01T23:59:59.000Z

423

Effect of the {delta}-aminolevulinate dehydratase polymorphism on the accumulation of lead in bone and blood in lead smelter workers  

SciTech Connect (OSTI)

Lead inhibition of the zinc metalloenzyme {delta}-aminolevulinate dehydratase (ALAD) is one of the most sensitive indicators of blood lead levels. Whole blood lead, serum lead, and ALAD genotype were determined for 381 lead smelter workers, including 70 workers expressing the ALAD allele, whose blood lead elevations were observed for more than 20 years of employment. The same employees demonstrated higher serum lead levels. Using a cumulative blood lead index (CBLI) for each worker, based on individual blood lead histories, and in vivo X-ray fluorescence measurements of bone lead to estimate total lead body burden, the slopes of linear relations of bone lead to CBLI were greater for workers homoallelic for ALAD, indicating more efficient uptake of lead from blood into bone. This effect was most significant in calcaneus bone and for workers hired since 1977. Decreased transfer of blood lead into bone in individuals expressing the ALAD allele contrasted with increased blood lead.

Fleming, D.E.B.; Chettle, D.R. [McMaster Univ., Hamilton, Ontario (Canada). Dept. of Physics and Astronomy] [McMaster Univ., Hamilton, Ontario (Canada). Dept. of Physics and Astronomy; Wetmur, J.G.; Desnick, R.J. [Mount Sinai School of Medicine, New York, NY (United States)] [Mount Sinai School of Medicine, New York, NY (United States); Robin, J.P. [Noranda Inc., Montreal, Quebec (Canada)] [Noranda Inc., Montreal, Quebec (Canada); Boulay, D.; Richard, N.S. [Brunswick Mining and Smelting Corp. Ltd., Belledune, New Brunswick (Canada). Occupational Health Services] [Brunswick Mining and Smelting Corp. Ltd., Belledune, New Brunswick (Canada). Occupational Health Services; Gordon, C.L.; Webber, C.E. [Hamilton Health Sciences Corp., Hamilton, Ontario (Canada). Dept. of Nuclear Medicine] [Hamilton Health Sciences Corp., Hamilton, Ontario (Canada). Dept. of Nuclear Medicine

1998-04-01T23:59:59.000Z

424

Pilot study dismantlement of 20 lead-lined shipping casks  

SciTech Connect (OSTI)

This report describes a pilot study conducted at the INEL to dismantle lead-lined casks and shielding devices, separate the radiologically contaminated and hazardous materials, and recycle resultant scrap lead. The facility areas where the work was performed, dismantlement methods, and process equipment are described. Issues and results associated with recycling the lead as a free-released scrap metal are presented and discussed. Data and results from the pilot study are summarized and presented. The study concluded that cask dismantlement at the INEL can be performed as a legitimate recycling activity for scrap lead. Ninety-one percent of the lead recovered passed free-release criteria. The value of the 50,375 lb of recovered lead is approximately $0.45/lb. Resultant waste streams can be satisfactorily treated and disposed. Only very low levels of bulk radiological contamination (47 picocuries/gram of 137 Cs and 3.2 picocuries/gram of {sup 6O}Co) were detected in the lead rejected for free release.

Thurmond, S.M.

1995-08-01T23:59:59.000Z

425

Blood lead levels and remediation of an abandoned smelter site  

SciTech Connect (OSTI)

Elevated soil lead levels were documented in a New Mexico community, with levels up to 24,800 ppm in a smelter slag pile, 20 or more feet from residences. The New Mexico Department of Health offered blood lead screening to residents of three geographic areas before and after an emergency cleanup by the US Environmental Protection Agency. Blood lead levels prior to the cleanup ranged from undetectable (< 5 {mu}g/dl) to 29 {mu}g/dl; after the cleanup, they ranged from undetectable to 10 {mu}g/dl. Significant reductions in mean blood lead levels after the cleanup were found for all three geographic areas: from 6.67 {mu}g/dl to 4 {mu}dl (smelter area), from 4.12 {mu}g/dl to 2.5 {mu}g/dl (town area), and from 5.5 {mu}g/dl to 2.5 {mu}g/dl (northeast area). In both years, the mean blood lead levels of individuals who lived near the smelter area were significantly higher than the levels for those living in town for those participating in both years of the study. Mean blood lead levels were significantly higher for smelter area participants who had a household member working at a lead battery plant (19.4 {mu}g/dl) compared to those residents who did not (5.83 {mu}g/dl).

Eidson, M. [New Mexico Dept. of Health, Santa Fe, NM (United States). Div. of Epidemiology, Evaluation, and Planning; Tollestrup, K. [Univ. of New Mexico School of Medicine, Albuquerque, NM (United States). Family and Community Medicine Dept.

1995-05-01T23:59:59.000Z

426

Metabolism of Thioctic Acid in Algae  

E-Print Network [OSTI]

METABOLISM OF THlOCTlC ACID IN ALGAE TWO-WEEK LOAN COPY ThisMETABOLISM OF THIOCTIC ACID IN ALGAE Hans Grisebach, R. , C.METABOLISM OF THIOCTIC ACID IN ALGAE Hans Grisebach, R. C.

Grisebach, Hans; Fuller, R.C.; Calvin, M.

1956-01-01T23:59:59.000Z

427

Performance of the MFTF magnet cryogenic power leads  

SciTech Connect (OSTI)

The cryogenic power lead system for the MFTF superconducting magnets has been acceptance tested and operated with the magnets. This system, which includes 5-m-long superconducting buses, 1.5-m-long vapor-cooled transition leads, external warm buses, and a cryostack, can conduct up to 6000 A (dc) and operate adiabatically for long periods. We present both design details and performance data; our MFTF version is an example of a reliable lead system for large superconducting magnets contained in a much larger vacuum vessel.

VanSant, J.H.

1983-11-30T23:59:59.000Z

428

Solvent extraction of inorganic acids  

E-Print Network [OSTI]

the solution by a sim?. le process that is economically =ttrsctlve is of con- sider. ble interest~ Dilute "olution; of hydrochloric, nitric and sul- furic acid d; occur in many processes either alone or toga- th: r . 'he use of li. , uid-li~uid extraction...~~ram for hexyl c~rbitol- water-nitric acid 17 ~ Distribution die, r m for hoxl'' ca:-bitol- watcr-sulfur'c acid Table 1. . 'xperimental d ta of amyl alcohol-water-!!Cl Pa, e 33 2. Experimental data of isoamyl alcohol-water- HC1 34 3 ~ Cxperimental data...

Ysrael, Miguel Curie

1965-01-01T23:59:59.000Z

429

Naphthenic acid corrosion literature survey  

SciTech Connect (OSTI)

Naphthenic acid corrosion is a growing concern for refineries processing crudes containing high levels of naphthenic acid. Due to this concern initiatives in place to better understand the mechanism of corrosion for mitigating the corrosion. During the 1996 Fall Corrosion Group, organized existing literature relevant to the literature search. Committee Week, NACE International many refineries have and evaluate methods T-8 Refining Industry a task group, T-8-22, to perform a review and compilation of naphthenic acid corrosion. This paper provides a summary of the literature research.

Babaian-Kibala, E. [Nalco/Exxon Energy Chemicals, Sugar Land, TX (United States); Nugent, M.J. [Tosco Refining Co., Linden, NJ (United States)

1999-11-01T23:59:59.000Z

430

acetic acid solutions: Topics by E-print Network  

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

In the present study, bonding among formic, acetic and benzoic acids, sulfuric acid, ammonia, acetic, and benzoic acids with free and hydrated sulfuric acid has been...

431

arachidonic acid activation: Topics by E-print Network  

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

In the present study, bonding among formic, acetic and benzoic acids, sulfuric acid, ammonia, acetic, and benzoic acids with free and hydrated sulfuric acid has been...

432

acid inertness studies: Topics by E-print Network  

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

In the present study, bonding among formic, acetic and benzoic acids, sulfuric acid, ammonia, acetic, and benzoic acids with free and hydrated sulfuric acid has been...

433

acid activated montmorillonite: Topics by E-print Network  

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

In the present study, bonding among formic, acetic and benzoic acids, sulfuric acid, ammonia, acetic, and benzoic acids with free and hydrated sulfuric acid has been...

434

acid amide hydrolase: Topics by E-print Network  

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

In the present study, bonding among formic, acetic and benzoic acids, sulfuric acid, ammonia, acetic, and benzoic acids with free and hydrated sulfuric acid has been studied....

435

acid chelation phototherapeutic: Topics by E-print Network  

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

In the present study, bonding among formic, acetic and benzoic acids, sulfuric acid, ammonia, acetic, and benzoic acids with free and hydrated sulfuric acid has been...

436

acid phosphatase activity: Topics by E-print Network  

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

In the present study, bonding among formic, acetic and benzoic acids, sulfuric acid, ammonia, acetic, and benzoic acids with free and hydrated sulfuric acid has been...

437

acetic acid solution: Topics by E-print Network  

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

In the present study, bonding among formic, acetic and benzoic acids, sulfuric acid, ammonia, acetic, and benzoic acids with free and hydrated sulfuric acid has been...

438

acetic acid operational: Topics by E-print Network  

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

In the present study, bonding among formic, acetic and benzoic acids, sulfuric acid, ammonia, acetic, and benzoic acids with free and hydrated sulfuric acid has been...

439

acid phosphatase activities: Topics by E-print Network  

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

In the present study, bonding among formic, acetic and benzoic acids, sulfuric acid, ammonia, acetic, and benzoic acids with free and hydrated sulfuric acid has been...

440

acid sphingomyelinase activity: Topics by E-print Network  

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

In the present study, bonding among formic, acetic and benzoic acids, sulfuric acid, ammonia, acetic, and benzoic acids with free and hydrated sulfuric acid has been...

Note: This page contains sample records for the topic "lead acid model" 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

acids decreases fibrinolysis: Topics by E-print Network  

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

In the present study, bonding among formic, acetic and benzoic acids, sulfuric acid, ammonia, acetic, and benzoic acids with free and hydrated sulfuric acid has been...

442

arachidonic acid activates: Topics by E-print Network  

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

In the present study, bonding among formic, acetic and benzoic acids, sulfuric acid, ammonia, acetic, and benzoic acids with free and hydrated sulfuric acid has been...

443

acid decarboxylase activity: Topics by E-print Network  

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

In the present study, bonding among formic, acetic and benzoic acids, sulfuric acid, ammonia, acetic, and benzoic acids with free and hydrated sulfuric acid has been...

444

acid activates nrf2: Topics by E-print Network  

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

In the present study, bonding among formic, acetic and benzoic acids, sulfuric acid, ammonia, acetic, and benzoic acids with free and hydrated sulfuric acid has been...

445

acid processing activity: Topics by E-print Network  

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

In the present study, bonding among formic, acetic and benzoic acids, sulfuric acid, ammonia, acetic, and benzoic acids with free and hydrated sulfuric acid has been...

446

ascorbic acid enhances: Topics by E-print Network  

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

In the present study, bonding among formic, acetic and benzoic acids, sulfuric acid, ammonia, acetic, and benzoic acids with free and hydrated sulfuric acid has been...

447

acid cupric chloride: Topics by E-print Network  

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

In the present study, bonding among formic, acetic and benzoic acids, sulfuric acid, ammonia, acetic, and benzoic acids with free and hydrated sulfuric acid has been...

448

An Experimental and Kinetic Modeling Study of Methyl Decanoate Combustion  

SciTech Connect (OSTI)

Biodiesel is typically a mixture of long chain fatty acid methyl esters for use in compression ignition engines. Improving biofuel engine performance requires understanding its fundamental combustion properties and the pathways of combustion. This research study presents new combustion data for methyl decanoate in an opposed-flow diffusion flame. An improved detailed chemical kinetic model for methyl decanoate combustion is developed, which serves as the basis for deriving a skeletal mechanism via the direct relation graph method. The novel skeletal mechanism consists of 648 species and 2998 reactions. This mechanism well predicts the methyl decanoate opposed-flow diffusion flame data. The results from the flame simulations indicate that methyl decanoate is consumed via abstraction of hydrogen atoms to produce fuel radicals, which lead to the production of alkenes. The ester moiety in methyl decanoate leads to the formation of low molecular weight oxygenated compounds such as carbon monoxide, formaldehyde, and ketene.

Sarathy, S M; Thomson, M J; Pitz, W J; Lu, T

2010-02-19T23:59:59.000Z

449

Surface dust wipes are the best predictors of blood leads in young children with elevated blood lead levels  

SciTech Connect (OSTI)

Background: As part of the only national survey of lead in Australian children, which was undertaken in 1996, lead isotopic and lead concentration measurements were obtained from children from 24 dwellings whose blood lead levels were ?15 g/dL in an attempt to determine the source(s) of their elevated blood lead. Comparisons were made with data for six children with lower blood lead levels (<10 g/dL). Methods: Thermal ionisation and isotope dilution mass spectrometry were used to determine high precision lead isotopic ratios ({sup 208}Pb/{sup 206}Pb, {sup 207}Pb/{sup 206}Pb and {sup 206}Pb/{sup 204}Pb) and lead concentrations in blood, dust from floor wipes, soil, drinking water and paint (where available). Evaluation of associations between blood and the environmental samples was based on the analysis of individual cases, and Pearson correlations and multiple regression analyses based on the whole dataset. Results and discussion: The correlations showed an association for isotopic ratios in blood and wipes (r=0.52, 95% CI 0.190.74), blood and soil (r=0.33, 95% CI ?0.050.62), and blood and paint (r=0.56, 95% CI 0.090.83). The regression analyses indicated that the only statistically significant relationship for blood isotopic ratios was with dust wipes (B=0.65, 95% CI 0.350.95); there were no significant associations for lead concentrations in blood and environmental samples. There is a strong isotopic correlation of soils and house dust (r=0.53, 95% CI 0.200.75) indicative of a common source(s) for lead in soil and house dust. In contrast, as with the regression analyses, no such association is present for bulk lead concentrations (r=?0.003, 95% CI ?0.370.36), the most common approach employed in source investigations. In evaluation of the isotopic results on a case by case basis, the strongest associations were for dust wipes and blood. -- Highlights: Children with elevated blood lead ?15 g/dL compared with a group with <10 g/dL. High precision lead isotopic ratios in blood, house dust wipes, soil, water, paint. Associations for isotopic measures of blood and dust, blood and soil, blood and paint. Regressions gave significance for isotopic measures of blood/dust and dust/soil.

Gulson, Brian, E-mail: brian.gulson@mq.edu.au [Graduate School of the Environment, Macquarie University, North Ryde NSW 2109 (Australia) [Graduate School of the Environment, Macquarie University, North Ryde NSW 2109 (Australia); CSIRO Earth Science and Resource Engineering, North Ryde NSW 2113 (Australia); Anderson, Phil [Information and Statistics Group, Australian Institute of Health and Welfare, Canberra ACT 2601 (Australia) [Information and Statistics Group, Australian Institute of Health and Welfare, Canberra ACT 2601 (Australia); Faculty of Health, University of Canberra, Canberra ACT 2601 (Australia); Taylor, Alan [Department of Psychology, Macquarie University, Sydney NSW 2109 (Australia)] [Department of Psychology, Macquarie University, Sydney NSW 2109 (Australia)

2013-10-15T23:59:59.000Z

450

Hydrogenation at low temperatures does not always lead to saturation: the case of HNCO  

E-Print Network [OSTI]

Context. It is generally agreed that hydrogenation reactions dominate chemistry on grain surfaces in cold, dense molecular cores, saturating the molecules present in ice mantles. Aims. We present a study of the low temperature reactivity of solid phase isocyanic acid (HNCO) with hydrogen atoms, with the aim of elucidating its reaction network. Methods. Fourier transform infrared spectroscopy and mass spectrometry were employed to follow the evolution of pure HNCO ice during bombardment with H atoms. Both multilayer and monolayer regimes were investigated. Results. The hydrogenation of HNCO does not produce detectable amounts of formamide (NH2CHO) as the major product. Experiments using deuterium reveal that deuteration of solid HNCO occurs rapidly, probably via cyclic reaction paths regenerating HNCO. Chemical desorption during these reaction cycles leads to loss of HNCO from the surface. Conclusions. It is unlikely that significant quantities of NH2CHO form from HNCO. In dense regions, however, deuteration o...

Noble, J A; Congiu, E; Dulieu, F; Bonnin, M; Bassas, A; Duvernay, F; Danger, G; Chiavassa, T

2015-01-01T23:59:59.000Z

451

In vivo incorporation of unnatural amino acids  

DOE Patents [OSTI]

The invention provides methods and compositions for in vivo incorporation of unnatural amino acids. Also provided are compositions including proteins with unnatural amino acids.

Schultz, Peter G. (La Jolla, CA); Wang, Lei (San Diego, CA); Anderson, John Christopher (San Diego, CA); Chin, Jason W. (Cambridge, GB); Liu, David R. (Lexington, MA); Magliery, Thomas J. (North Haven, CT); Meggers, Eric L. (Philadelphia, PA); Mehl, Ryan Aaron (Lancaster, PA); Pastrnak, Miro (San Diego, CA); Santoro, Stephen William (Cambridge, MA); Zhang, Zhiwen (San Diego, CA)

2012-05-08T23:59:59.000Z

452

Carbonic Acid Shows Promise in Geology, Biology  

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

The Surprising Secrets of Carbonic Acid Probing the Surprising Secrets of Carbonic Acid Berkeley Lab Study Holds Implications for Geological and Biological Processes October 23,...

453

Mineralogical transformations controlling acid mine drainage...  

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

Mineralogical transformations controlling acid mine drainage chemistry. Mineralogical transformations controlling acid mine drainage chemistry. Abstract: The role of Fe(III)...

454

Determinants of elevated blood lead during pregnancy in a population surrounding a lead smelter in Kosovo, Yugoslavia  

SciTech Connect (OSTI)

The authors are prospectively examining the relation between environmental lead exposure and pregnancy outcome in cohorts of women exposed to a wide range of air lead concentrations. Titova Mitrovica, Yugoslavia, is the site of a large lead smelter, refinery, and battery factory. At midpregnancy, 602 women in T. Mitrovica and 900 women in Pristina, a non-lead-exposed control town, were interviewed. Blood was obtained for blood lead (PbB), hemoglobin erythrocyte protoporphyrin, and serum ferritin measurements. Women were seen again at delivery, at which time maternal and umbilical cord blood samples were obtained. While many demographic and social characteristics were similar across the two towns, women in Pristina were more likely to report employment outside the home, cigarette smoking, and alcohol use during pregnancy. As expected, PbB levels were substantially higher in the smelter town. Within T. Mitrovica, distance between the home and the smelter was the most important predictor of PbB at mid-pregnancy and delivery. Husband's employment in the lead industry was associated with a significant increase in maternal PbB levels independent of place of residence. Overall, the placenta was a poor barrier to lead; the relationship between maternal PbB and umbilical cord PbB was linear across a wide range of PbB levels.

Graziano, J.H.; Factor-Litvak, P.; Murphy, M.J.; Zhao, Yuhua; Lolacono, N.J. (Columbia Univ., New York, NY (USA)); Popovac, D.; Ahmedi, X.; Zvicer, Z.; Nenezic, D.U. (Univ of Pristina Medical School (Yugoslavia)); Shrout, P.; Kline, J.; Stein, Z. (Columbia Univ., New York, NY (USA) New York State Psychiatric Institute, New York (USA)); Mehmeti, A.; Rajovic, B. (Medicinski Centar, Titova Mitrovica (Yugoslavia))

1990-11-01T23:59:59.000Z

455

Robert C. Seamans, Jr. Appointed to Lead Nuclear Weapons Program...  

National Nuclear Security Administration (NNSA)

Photo Gallery Jobs Apply for Our Jobs Our Jobs Working at NNSA Blog Home About Us Our History NNSA Timeline Robert C. Seamans, Jr. Appointed to Lead ... Robert C. Seamans,...

456

The impact of lead time on truckload transportation rates  

E-Print Network [OSTI]

The objective of this thesis was to analyze truckload shipment transactions in order to determine if rates are impacted by tender lead time, which is the amount of time between when a carrier is offered a load to when the ...

Caldwell, Erik R. (Erik Russell)

2008-01-01T23:59:59.000Z

457

antioxidant enzymes leading: Topics by E-print Network  

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

Boyd, R N; Reitzner, S D; Vogel, P 2003-01-01 360 AUV Commercialization - Who's Leading the Pack? CiteSeer Summary: Taking AUV technology from the drawing board and putting...

458

Leading change management projects in international cross-cultural settings  

E-Print Network [OSTI]

In an increasingly complex world for Multinational Companies, it is difficult for managers to keep a firm grasp over the global projects they are tasked to implement. Many of them lead teams operating across country borders, ...

Repoux, Charles

2014-01-01T23:59:59.000Z

459

Characterization of lead-recycling facility emissions at various workplaces  

E-Print Network [OSTI]

studies on lead smelter emissions deal with the environmental impact of outdoor particles, but only a few and then compared; namely Furnace and Refining PM respectively present in the smelter and at refinery workplaces

Paris-Sud XI, Université de

460

Microfluidic devices and Block Copolymer Nanolithography Lead: D. Angelescu  

E-Print Network [OSTI]

Microfluidic devices and Block Copolymer Nanolithography Lead: D. Angelescu Permanent members: B, X. Yuan One of our activities in microfluidics involves the design of a microfluidic system which measures pressure drops along microfluidic channels involving different types of constrictions using

Baudoin, Geneviève

Note: This page contains sample records for the topic "lead acid model" 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

Leading Edge Spinning the Web of Cell Fate  

E-Print Network [OSTI]

Leading Edge Minireview Spinning the Web of Cell Fate Kevin Van Bortle1 and Victor G. Corces1,* 1 involved in spinning the web of cell fate. Chromatin at the Nuclear Lamina The nuclear lamina is a thin

Corces, Victor G.

462

Lead Groundwater Contamination of Groundwater in the Northeast ...  

E-Print Network [OSTI]

The detailed description of the migration of pollutants is fundamental for the groundwater monitoring and it ... historical data with a, groundwater contamination sampling for water quality analyses ... can be toxic to living organisms. Lead can...

2001-03-12T23:59:59.000Z

463

The effects of part commonality on product development lead time  

E-Print Network [OSTI]

Nortel Networks, a leading global supplier of telecommunications equipment, is engaged in an increasingly competitive global market place. Within this market, Nortel Networks is positioning itself as the leader of global ...

Svensson, Nicholas, 1965-

2005-01-01T23:59:59.000Z

464

antigen levels leading: Topics by E-print Network  

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

20 21 22 23 24 25 Next Page Last Page Topic Index 1 Photodynamic Therapy of Tumors Can Lead to Development of Systemic Antigen-Specific Immune Response MIT - DSpace Summary: The...

465

antileishmanial lead drug: Topics by E-print Network  

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

Websites Summary: AND ADDICTION (K12) Funding Opportunity Number: PAR-10-177. CFDA Number(s): 93.279. AgencyDepartment: National) leading to research independence in the...

466

Direct printing of lead zirconate titanate thin films  

E-Print Network [OSTI]

Thus far, use of lead zirconate titanate (PZT) in MEMS has been limited due to the lack of process compatibility with existing MEMS manufacturing techniques. Direct printing of thin films eliminates the need for photolithographic ...

Bathurst, Stephen, 1980-

2008-01-01T23:59:59.000Z

467

Control of acid mist emissions from FGD systems  

SciTech Connect (OSTI)

Improved control of acid mist emissions can be achieved by replacing or augmenting the conventional mist eliminators with a wet electrostatic precipitator (WESP). This paper describes a two-phased study performed to determine the degree of control that can be achieved with this approach. Phase I was a study of the electrical operation of a lab-scale WESP collecting an acid mist from a coal combustion pilot plant equipped with a spray chamber. The results of this study were used to develop and validate a computer model of the WESP. In Phase II, measurements were made at two utility scrubber installations to determine the loadings of acid mist, fly ash, and scrubber carryover. These measurements were used as input to the model to project the performance of a retrofitted WESP.

Dahlin, R S [Southern Research Inst., Birmingham, AL (United States)] [Southern Research Inst., Birmingham, AL (United States); Brown, T D [USDOE Pittsburgh Energy Technology Center, PA (United States)] [USDOE Pittsburgh Energy Technology Center, PA (United States)

1991-01-01T23:59:59.000Z

468

High Level Waste System Impacts from Acid Dissolution of Sludge  

SciTech Connect (OSTI)

This research evaluates the ability of OLI{copyright} equilibrium based software to forecast Savannah River Site High Level Waste system impacts from oxalic acid dissolution of Tank 1-15 sludge heels. Without further laboratory and field testing, only the use of oxalic acid can be considered plausible to support sludge heel dissolution on multiple tanks. Using OLI{copyright} and available test results, a dissolution model is constructed and validated. Material and energy balances, coupled with the model, identify potential safety concerns. Overpressurization and overheating are shown to be unlikely. Corrosion induced hydrogen could, however, overwhelm the tank ventilation. While pH adjustment can restore the minimal hydrogen generation, resultant precipitates will notably increase the sludge volume. OLI{copyright} is used to develop a flowsheet such that additional sludge vitrification canisters and other negative system impacts are minimized. Sensitivity analyses are used to assess the processability impacts from variations in the sludge/quantities of acids.

KETUSKY, EDWARD

2006-04-20T23:59:59.000Z

469

The urban perspectives of acid rain. Workshop summary  

SciTech Connect (OSTI)

This report documents discussions held during a workshop an Urban Perspective of Acid Rain. The workshop was sponsored by the Office of the Director, National Acid Precipitation Assessment Program (NAPAP). NAPAP anticipates giving increased emphasis to the benefits in urban areas of emissions reductions. The goal of this informal, exploratory workshop was to serve as a first step towards identifying pollutant monitoring, and research and assessment needs to help answer, from an urban perspective, the two key questions posed to NAPAP by Congress: (1) what are the costs, benefits, and effectiveness of the acid rain control program, and (2) what reductions in deposition, rates are needed in order to prevent adverse effects? The workshop addressed research activities needed to respond to these questions. The discussions focused. sequentially, on data needs, data and model availability, and data and modeling gaps. The discussions concentrated on four areas of effects: human health, materials, urban forests, and visibility.

Tonn, B.E.

1993-06-04T23:59:59.000Z

470

Seasonalepisodic control of acid deposition  

E-Print Network [OSTI]

This report contains the climatological, technical and economic factors for episodic and seasonal control of emissions in existing power plants. Analyzing a large data set of acid deposition for the years 1982-85, we find ...

Fay, James A.

1988-01-01T23:59:59.000Z

471

Asphaltene damage in matrix acidizing  

E-Print Network [OSTI]

This work addresses the problem of asphaltene deposition that occurs during acid treatments of oil reservoirs. Asphaltenes are present to some degree in most hydrocarbons. Due to the molecular weight of the components these asphaltenes are more...

Hinojosa, Roberto Antonio

2012-06-07T23:59:59.000Z

472

Controlling acid rain : policy issues  

E-Print Network [OSTI]

The policy and regulatory ramifications of U.S. acid rain control programs are examined; particularly, the alternative of a receptor-oriented strategy as constrasted to emission-oriented proposals (e.g., the Mitchell bill) ...

Fay, James A.

1983-01-01T23:59:59.000Z

473

Nitrate and Prussic Acid Poisoning  

E-Print Network [OSTI]

Nitrate and prussic acid poisoning in cattle are noninfectious conditions that can kill livestock. This publication explains the causes and symptoms of these conditions as well as preventive measures and sampling and testing steps....

Stichler, Charles; Reagor, John C.

2001-09-05T23:59:59.000Z

474

MERCURY AND LEAD SAMPLING AT MINNESOTA POWER'S BOSWELL ENERGY CENTER  

SciTech Connect (OSTI)

At the request of the Minnesota Power, Inc., the Energy & Environmental Research Center (EERC) sampled for lead at the stack (or duct directly leading to the stack) for three units at the Boswell Energy Center. All sampling was done in triplicate using U.S. Environmental Protection Agency (EPA) Method 12, with sampling procedures following EPA Methods 1 through 4. During the test program, lead sampling was done using EPA Method 12 in the duct at the outlet of the baghouse serving Unit 2 and the duct at the outlet of the wet particulate scrubber serving Unit 3. For Unit 4, lead sampling was done at the stack. The specific objective for the project was to determine the concentration of lead in the flue gas being emitted into the atmosphere from the Boswell Energy Center. The test program was performed during the period of May 8 through 11, 2000. This report presents the test data, sample calculations, and results, and a discussion of the lead sampling performed at the Boswell Energy Center. The detailed test data and test results, raw test data, process data, laboratory reports, and equipment calibration records are provided in Appendices A, B, and C.

Dennis L. Laudal

2000-08-01T23:59:59.000Z

475

Factors controlling naphthenic acid corrosion  

SciTech Connect (OSTI)

A laboratory study was conducted to elucidate the influence of chemical and physical parameters on corrosion of type 1018 carbon steel (CS, UNS G10180) and 5% Cr-0.5% Mo steel in oils containing naphthenic acids (NAs) for application to crude oil refinery systems. Effects of test duration, temperature, and acid concentration were assessed for a range of single acids of varying carbon numbers and for NA mixtures in mineral oil (MO) and in heavy vacuum gas oil (HGVO). In addition, a limited study of the effect of hydrogen sulfide (H{sub 2}S) addition to the acid-oil mixture was conducted. Use of the total acid number (TAN) as a measure of corrosiveness of a crude oil was discredited further. For the same TAN value, molecular size and structure of the acid were shown to have an important influence. Tests conducted in HGVO showed lower corrosion rates than in MO, suggesting inhibition caused by S species in the oil or the steric hindrance of naphtheno-aromatic acids. In oil containing the mixture of NAs, the corrosion rate of type 1018 CS was lower than that for 5% Cr-0.5% Mo steel. The 0.1% H{sub 2}S that passed through the acid-oil mixtures had an inhibiting effect on corrosion. Predicting corrosiveness of a crude oil from the measurement of TAN, distribution of NA composition, and S content and form was particularly challenging. The simple tests used were informative, but further work will be required to establish a standard test method that can provide an adequate ranking of crudes.

Turnbull, A. [National Physical Lab., Teddington (United Kingdom); Slavcheva, E. [Bulgarian Academy of Sciences, Sofia (Bulgaria); Shone, B. [Ty Isa, Nr Mold (United Kingdom)

1998-11-01T23:59:59.000Z

476

The design of a functionally graded composite for service in high temperature lead and lead-bismuth cooled nuclear reactors  

E-Print Network [OSTI]

A material that resists lead-bismuth eutectic (LBE) attack and retains its strength at 700C would be an enabling technology for LBE-cooled reactors. No single alloy currently exists that can economically meet the required ...

Short, Michael Philip

2010-01-01T23:59:59.000Z

477

Effects of Relativity Lead to"Warp Speed" Computations  

SciTech Connect (OSTI)

A scientist at Lawrence Berkeley National Laboratory has discovered that a previously unnoticed consequence of Einstein's special theory of relativity can lead to speedup of computer calculations by orders of magnitude when applied to the computer modeling of a certain class of physical systems. This new finding offers the possibility of tackling some problems in a much shorter time and with far more precision than was possible before, as well as studying some configurations in every detail for the first time. The basis of Einstein's theory is the principle of relativity, which states that the laws of physics are the same for all observers, whether the 'observer' is a turtle 'racing' with a rabbit, or a beam of particles moving at near light speed. From the invariance of the laws of physics, one may be tempted to infer that the complexity of a system is independent of the motion of the observer, and consequently, a computer simulation will require the same number of mathematical operations, independently of the reference frame that is used for the calculation. Length contraction and time dilation are well known consequences of the special theory of relativity which lead to very counterintuitive effects. An alien observing human activity through a telescope in a spaceship traveling in the Vicinity of the earth near the speed of light would see everything flattened in the direction of propagation of its spaceship (for him, the earth would have the shape of a pancake), while all motions on earth would appear extremely slow, slowed almost to a standstill. Conversely, a space scientist observing the alien through a telescope based on earth would see a flattened alien almost to a standstill in a flattened spaceship. Meanwhile, an astronaut sitting in a spaceship moving at some lower velocity than the alien spaceship with regard to earth might see both the alien spaceship and the earth flattened in the same proportion and the motion unfolding in each of them at the same speed. Let us now assume that each protagonist (the alien, the space scientist and the astronaut) is to run a computer simulation describing the motion of all of them in a single calculation. In order to model a physical system on a computer, scientists often divide space and time into small chunks. Since the computer must calculated some things for each chunk, having a large system containing numerous small chunks translates to long calculations requiring many computational steps on supercomputers. Let us assume that each protagonist of our intergalactic story uses the space and time slicing as described and chooses to perform the calculation in its own frame of reference. For the alien and the space scientist, the slicing of space and time results in an exceedingly large number of chunks, due to the wide disparity of spatial and time scales needed to describe both their own environment and motion together with the other extremely flattened environment and slowed motion. Since the disparity of scales is reduced for the astronaut, who is traveling at an intermediate velocity, the number of computer operations needed to complete the calculation in his frame of reference will be significantly lower, possibly by many orders of magnitude. Analogously, the new discovery at Lawrence Berkeley National Laboratory shows that there exists a frame of reference minimizing the number of computational operations needed for studying the interaction of beams of particles or light (lasers) interacting at, or near, light speed with other particles or with surrounding structures. Speedups ranging from ten to a million times or more are predicted for the modeling of beams interacting with electron clouds, such as those in the upcoming Large Hadron Collider 'atom smasher' accelerator at CERN (Switzerland), and in free electron lasers and tabletop laser wakefield accelerators. The discovery has surprised many physicists and was received initially with much skepticism. It sounded too much like a 'free lunch'. Yet, the demonstration of a speedup of a stunning one thousand times in a te

Vay, J.-L.

2007-11-01T23:59:59.000Z

478

The use of NTA and EDTA for lead phytoextraction from soil from a battery recycling site  

E-Print Network [OSTI]

are lead mining, lead smelting and battery recycling.Areas near Pb recycling facilities may be enriched bysoil with lead. A battery recycling site is a location where

Freitas, Eriberto; Nascimento, Clistenes; Silva, Airon

2009-01-01T23:59:59.000Z

479

Extraction of naphthenic acid from kerosene using porous and nonporous polymeric membranes  

SciTech Connect (OSTI)

A systematic study of membrane-assisted extraction of naphthenic acids from hydrocarbon fractions by aqueous caustic soda using both porous and nonporous membranes is reported. The effects of hydrodynamic factors, concentration of naphthenic acids and caustic soda, and temperature on the transmembrane flux are discerned. The film model is used to determine the intrinsic mass transfer characteristics of the membranes.

Netke, S.A.; Pangarkar, V.G. [Univ. of Bombay, Matunga (India)

1996-01-01T23:59:59.000Z

480

Childhood lead poisoning from the smelter in Torreon, Mexico  

SciTech Connect (OSTI)

Lead concentrations and isotopic compositions in blood samples of 34 children (ages 2-17 years) living within a 113 km{sup 2} area of a silver-zinc-lead smelter plant in Torreon, Mexico were compared to those of associated environmental samples (soil, aerosols, and outdoor and indoor dust) to identify the principal source(s) of environmental and human lead contamination in the area. Lead concentrations of soil and outdoor dust ranged 130-12,050 and 150-14,365 {mu}g g{sup -1}, respectively. Concentrations were greatest near the smelter, with the highest levels corresponding with the prevailing wind direction, and orders of magnitude above background concentrations of 7.3-33.3 {mu}g g{sup -1}. Atmospheric lead depositions in the city varied between 130 and 1350 {mu}g m{sup -2} d{sup -1}, again with highest rates <1 km from the smelter. Blood lead (PbB) concentrations (11.0{+-}5.3 {mu}g dl{sup -1}) levels in the children ranged 5.0-25.8 {mu}g dl{sup -1}, which is 3-14 times higher than the current average (1.9 {mu}g dl{sup -1}) of children (ages 1-5 years) in the US. Lead isotopic ratios ({sup 206}Pb/{sup 207}Pb, {sup 208}Pb/{sup 207}Pb) of the urban dust and soil (1.200{+-}0.009, 2.467{+-}0.003), aerosols (1.200{+-}0.002, 2.466{+-}0.002), and PbB (1.199{+-}0.001, 2.468{+-}0.002) were indistinguishable from each other, as well as those of the lead ores processed at the smelter (1.199{+-}0.007, 2.473{+-}0.007). Consequently, an elevated PbB concentrations of the children in Torreon, as well as in their environment, are still dominated by industrial emissions from the smelter located within the city, in spite of new controls on atmospheric releases from the facility. - Highlights: {yields} Pb contents in environmental samples evidenced chronic Pb pollution in Torreon. {yields} Pb stable isotopes evidenced contemporary emissions from the Ag-Cod-Pb-Zn smelter. {yields} Pb urban dust and soil account for most of the childhood lead poisoning in Torreon.{yields} Levels of Pub in Torreon's children are 3-14 times higher than children in the US.{yields} Children Pub concentrations are primarily attributed to emissions from the smelter.

Soto-Jimenez, Martin F., E-mail: martin@ola.icmyl.unam.mx [Unidad Academica Mazatlan, Instituto de Ciencias del Mar y Limnologia, Universidad Nacional Autonoma de Mexico (UAM-ICMyL-UNAM), Apdo. Postal 811, Mazatlan 82040, Sinaloa (Mexico); Flegal, Arthur R. [WIGS, Microbiology and Environmental Toxicology, University of California at Santa Cruz, Santa Cruz, CA 95064 (United States)] [WIGS, Microbiology and Environmental Toxicology, University of California at Santa Cruz, Santa Cruz, CA 95064 (United States)

2011-05-15T23:59:59.000Z

Note: This page contains sample records for the topic "lead acid model" 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

Acid sorption regeneration process using carbon dioxide  

DOE Patents [OSTI]

Carboxylic acids are sorbed from aqueous feedstocks onto a solid adsorbent in the presence of carbon dioxide under pressure. The acids are freed from the sorbent phase by a suitable regeneration method, one of which is treating them with an organic alkylamine solution thus forming an alkylamine-carboxylic acid complex which thermally decomposes to the desired carboxylic acid and the alkylamine.

King, C. Judson (Kensington, CA); Husson, Scott M. (Anderson, SC)

2001-01-01T23:59:59.000Z

482

Succinic acid production by Anaerobiospirillum succiniciproducens  

E-Print Network [OSTI]

, succinic acid has been produced commercially by chemical processes. Recently, however, fermentative of bacteria produce succinic acid as a fermentation end product,4 7 few species can produce it as the major 10 Previous studies showed that A. succiniciproducens produces succinic acid and acetic acid

483

-Amino acids, although less abundant than their -analogues, are also present in peptides and other natural  

E-Print Network [OSTI]

. A number of methods for synthesis and transformations leading to -amino acids in diastereomerically as key structural components has recently attracted attention in synthetic organic chemistry because Polyhydroxyalkanoates (PHAs) are a family of carbon, energy and/or reducing power storage polymers, which

484

Primary lead smelter, Doe Run, Herculaneum, Missouri (kit)  

SciTech Connect (OSTI)

The United States Environmental Protection Agency`s (EPA) Emission Standards Division (ESD) is investigating the primary lead smelting source category to identify and quantify organic hazardous air pollutants (HAPs) emitted from blast furnaces. The primary objective was to obtain data on the emissions of volatile and semi-volatile organic HAPs, aldehydes, and ketones from primary lead smelter blast furnaces. A secondary objective was to obtain data on the emissions of carbon monoxide. The data will be used by ESD to determine whether organic HAPs are emitted at levels that would justify regulation under the Maximum Achievable Control Technology (MACT) program. The Doe Run Company, which operates a primary lead smelter in Herculaneum, Missouri was selected by the ESD as the host facility for this project.

NONE

1999-08-01T23:59:59.000Z

485

Critical magnetic field of surface superconductivity in lead  

SciTech Connect (OSTI)

The critical superconductivity field H{sub c3} is measured on lead single crystals. It is shown that the temperature dependence of H{sub c3}/H{sub c} in the vicinity of superconducting transition temperature T{sub c} is essentially nonlinear. Relative changes in the value of H{sub c3}/H{sub c} reach approximately 30%, which cannot be described by the Ginzburg-Landau theory. The experimental temperature dependences lead to the conclusion that the surface superconducting transition temperature noticeably exceeds the superconducting transition temperature in the bulk of the semiconductor. The differences in the critical temperatures and in the Ginzburg-Landau parameters for lead are estimated.

Khlyustikov, I. N., E-mail: khly@kapitza.ras.ru [Russian Academy of Sciences, Kapitza Institute of Physical Problems (Russian Federation)

2011-12-15T23:59:59.000Z

486

Comparison of leading parallel NAS file systems on commodity hardware  

SciTech Connect (OSTI)

High performance computing has experienced tremendous gains in system performance over the past 20 years. Unfortunately other system capabilities, such as file I/O, have not grown commensurately. In this activity, we present the results of our tests of two leading file systems (GPFS and Lustre) on the same physical hardware. This hardware is the standard commodity storage solution in use at LLNL and, while much smaller in size, is intended to enable us to learn about differences between the two systems in terms of performance, ease of use and resilience. This work represents the first hardware consistent study of the two leading file systems that the authors are aware of.

Hedges, R; Fitzgerald, K; Gary, M; Stearman, D M

2010-11-08T23:59:59.000Z

487

Method for production of petroselinic acid and OMEGA12 hexadecanoic acid in transgenic plants  

DOE Patents [OSTI]

The present invention relates to a process for producing lipids containing the fatty acid petroselinic acid in plants. The production of petroselinic acid is accomplished by genetically transforming plants which do not normally accumulate petroselinic acid with a gene for a .omega.12 desaturase from another species which does normally accumulate petroselinic acid.

Ohlrogge, John B. (Okemos, MI); Cahoon, Edgar B. (Lansing, MI); Shanklin, John (Upton, NY); Somerville, Christopher R. (Okemos, MI)

1995-01-01T23:59:59.000Z

488

Method for production of petroselinic acid and OMEGA12 hexadecanoic acid in transgenic plants  

DOE Patents [OSTI]

The present invention relates to a process for producing lipids containing the fatty acid, petroselinic acid, in plants. The production of petroselinic acid is accomplished by genetically transforming plants which do not normally accumulate petroselinic acid with a gene for a {omega}12 desaturase from another species which does normally accumulate petroselinic acid. 19 figs.

Ohlrogge, J.B.; Cahoon, E.B.; Shanklin, J.; Somerville, C.R.

1995-07-04T23:59:59.000Z

489

Childhood lead poisoning near abandoned lead mining and smelting areas: A case study of two affected households  

SciTech Connect (OSTI)

In October, 1990 the Missouri Dept. of Health entered a contract with the Agency for Toxic Substances and Disease Registry (ATSDR) to conduct an exposure study at the Jasper County, Missouri Superfund Site. The primary concern was exposure to elevated levels of lead and cadmium resulting from previous mining of lead and zinc in the area. Several individuals were found to have elevated lead levels and this article is a case study of two households where children with elevated levels resided. Due to the lowering of the Centers for Disease Control and Prevention (CDC) standard for a level of concern in childhood lead poisoning from 25 [mu]g/dl to 10 [mu]g/dl, many environmental heath personnel may be requested to evaluate exposure routes and give advice regarding risk reduction to families who reside in areas not previously thought to be problematic. Accomplishing this risk reduction may require passage of local ordinances requiring lead abatement, additional training of field personnel, and cooperative work with other public and governmental entities.

Moehr, A.D. (Jasper County Health Dept., Webb City, MO (United States)); Roberts, D.W.; Phillips, P.E.; Evans, R.G.

1993-10-01T23:59:59.000Z

490

Experimental Study of Mechanistic Acid Deconstruction of Lignin  

SciTech Connect (OSTI)

Lignin is a major component of biomass, which remains highly underutilized in selective biomass conversion strategies to renewable fuels and chemicals. Here we are interested in studying the mechanisms related to the acid deconstruction of lignin with a combined theoretical and experimental approach. Quantum mechanical calculations were employed to elucidate possible deconstruction mechanisms with transition state theory. Model dimers, imitating H, S, and G lignins, were synthesized with the most abundant {beta} - O - 4 linkage in lignin. These compounds were then depolymerized using various acids and at different operating conditions. The deconstruction products were analyzed to complement the QM studies and investigate proposed mechanisms.

Sturgeon, M.; Kim, S.; Chmely, S. C.; Katahira, R.; Foust, T. D.; Beckham, G. T.

2012-01-01T23:59:59.000Z

491

COMPOUND-SPECIFIC RADIOCARBON ANALYSES OF PHOSPHOLIPID FATTYACIDS AND n -ALKANES IN OCEAN SEDIMENTS  

E-Print Network [OSTI]

Monica Basin surface sediment: a model based on compound-ACIDS AND n-ALKANES IN OCEAN SEDIMENTS Ellen R M Druffel 1 organic matter in ocean sediments from the northeast Pacific

2010-01-01T23:59:59.000Z

492

Compound-Specific Radiocarbon Analyses of Phospholipid Fatty Acids and n-Alkanes in Ocean Sediments  

E-Print Network [OSTI]

Monica Basin surface sediment: a model based on compound-ACIDS AND n-ALKANES IN OCEAN SEDIMENTS Ellen R M Druffel 1 organic matter in ocean sediments from the northeast Pacific

2010-01-01T23:59:59.000Z

493

E-Print Network 3.0 - acid lung injury Sample Search Results  

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

Series Using Active Contour Models Summary: and recruitment in oleic-acid-induced lung injury. Am J Respir Crit Care Med 1998; 158: 1636-1643 2 Schreiter D... and atelectatic...

494

TO BETTER UNDERSTAND THE FORMATION OF SHORT-CHAIN ACIDS IN COMBUSTION SYSTEMS  

E-Print Network [OSTI]

(temperatures below 1100 K) in an HCCI (Homogeneous Charge Compression Ignition) engine alimented by a n of engines. Keywords: Monocarboxylic acids, laminar flame, HCCI engine, kinetic modeling. 2 hal-00206126

Paris-Sud XI, Université de

495

E-Print Network 3.0 - acidizing system matrix Sample Search Results  

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

I. Kaiser1,2 1 Department... formation of carboxylic acids (RCOOH) in interstellar and solar system model ices of carbon dioxide (CO2... HOCO and OH recombine within the matrix...

496

The Influence of Equilibrium Reactions on the Kinetics of Calcite Dissolution in Lactic Acid Solutions  

E-Print Network [OSTI]

acid and calcite will allow for optimized treatment design. The kinetic model was also used to isolate the contributions of the transport of reactants, the surface reaction, and the transport of products to the overall resistance of the reaction...

Shedd, Daniel C

2014-08-07T23:59:59.000Z

497

New syntheses of aminoalkylphosphonic acids  

E-Print Network [OSTI]

NEW SYNTHESES OF AMINOALKYLPHOSPHON1C ACIDS A Thesis by John Frederick DeBardeleben, Jr. Su'bmitted to the Graduate School of the Agricultural and Mechanical College of Texas in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE August 196$ Major Subject: Chemistry NEW SYNTHESES OF AMINOALKYLPHOSPHONIC ACIDS A Thesis BY John Frederick DeBardeleben, Jr. Approved as to style and content hy: (Chairman of Committee) iJ C wc+'. A-c-~-' & (Head of Department...

DeBardeleben, John Frederick

2012-06-07T23:59:59.000Z

498

Effect of matrix acidity on resid cracking activity of FCC catalysts  

SciTech Connect (OSTI)

The importance of matrix acid sites on the cracking of large resid molecules in heavy crude fractions is discussed. The challenge of measuring fresh matrix acidity was overcome by first destroying the zeolite by treating the catalyst with concentrated acid and then titrating the acid sites by thermogravimetry of pyridine. Due to differences in hydrothermal stability, the acidity of matrix in its fresh form did not correlate with the commercial resid cracking activity on an equilibrated catalyst. To overcome this drawback, the zeolite was destroyed by steaming at 870{degrees}C. Such severe treatment created a matrix that closely resembled that of the commercially equilibrated catalyst. Changes in the nature of acid sites were investigated by performing diffuse reflectance infrared spectroscopy (DRIFTS) measurements on fresh and steamed matrices. While Lewis acid sites were predominant on most fresh matrices, the population of Bronsted acid sites increased as a result of hydrothermal deactivation. The correlations between each type of acidity and commercial resid cracking are discussed. The incorporation of acid density, type, and stability into a comprehensive model is shown to be an important prerequisite for designing robust resid cracking catalysts.

Alerasool, S.; Doolin, P.K.; Hoffman, J.F. [Ashland Petroleum Company, Ashland, KY (United States)

1996-10-01T23:59:59.000Z

499

PHYSICS DIVISION ESH BULLETIN 2004-02 1/15/04 LEAD SHIELDING  

E-Print Network [OSTI]

an occupational hazard, lead dust carried home on clothing can pose a hazard to the worker's family. Lead-stops, weights for fans. · Wear gloves when handling lead. Wash your hands after handling lead. · Store lead indoors to protect from the weather and to limit oxidization. #12;· Avoid handling heavily oxidized lead

500

The Ground State Energy of Heavy Atoms: the Leading Correction  

E-Print Network [OSTI]

For heavy atoms (large atomic number $Z$) described by no-pair operators in the Furry picture we find the ground state's leading energy correction. We compare the result with (semi-)empirical values and Schwinger's prediction showing more than qualitative agreement.

Michael Handrek; Heinz Siedentop

2014-11-21T23:59:59.000Z