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We encourage you to perform a real-time search of NLEBeta
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1

Power System Online Stability Assessment using Synchrophasor Data Mining  

E-Print Network [OSTI]

Traditional power system stability assessment based on full model computation shows its drawbacks in real-time applications where fast variations are present at both demand side and supply side. This work presents the use of data mining techniques...

Zheng, Ce

2013-04-30T23:59:59.000Z

2

AC system stability analysis and assessment for Shipboard Power Systems  

E-Print Network [OSTI]

due to reconfiguration might cause voltage instability, such as progressive voltage decreases or voltage oscillations. SPS stability thus should be assessed to ensure the stable operation of a system during reconfiguration. In this dissertation, time...

Qi, Li

2006-04-12T23:59:59.000Z

3

Environmental Assessment -- Test Area North pool stabilization project update  

SciTech Connect (OSTI)

The purpose of this Environmental Assessment (EA) is to update the ``Test Area North Pool Stabilization Project`` EA (DOE/EA-1050) and finding of no significant impact (FONSI) issued May 6, 1996. This update analyzes the environmental and health impacts of a drying process for the Three Mile Island (TMI) nuclear reactor core debris canisters now stored underwater in a facility on the Idaho National Engineering and Environmental Laboratory (INEEL). A drying process was analyzed in the predecision versions of the EA released in 1995 but that particular process was determined to be ineffective and dropped from the EA/FONSI issued May 6, 1996. A new drying process was subsequently developed and is analyzed in Section 2.1.2 of this document. As did the 1996 EA, this update analyzes the environmental and health impacts of removing various radioactive materials from underwater storage, dewatering these materials, constructing a new interim dry storage facility, and transporting and placing the materials into the new facility. Also, as did the 1996 EA, this EA analyzes the removal, treatment and disposal of water from the pool, and placement of the facility into a safe, standby condition. The entire action would take place within the boundaries of the INEEL. The materials are currently stored underwater in the Test Area North (TAN) building 607 pool, the new interim dry storage facility would be constructed at the Idaho Chemical Processing Plant (ICPP) which is about 25 miles south of TAN.

NONE

1997-08-01T23:59:59.000Z

4

Test Area North Pool Stabilization Project: Environmental assessment  

SciTech Connect (OSTI)

The Test Area North (TAN) Pool is located within the fenced TAN facility boundaries on the Idaho National Engineering Laboratory (INEL). The TAN pool stores 344 canisters of core debris from the March, 1979, Three Mile Island (TMI) Unit 2 reactor accident; fuel assemblies from Loss-of-Fluid Tests (LOFT); and Government-owned commercial fuel rods and assemblies. The LOFT and government owned commercial fuel rods and assemblies are hereafter referred to collectively as {open_quotes}commercial fuels{close_quotes} except where distinction between the two is important to the analysis. DOE proposes to remove the canisters of TMI core debris and commercial fuels from the TAN Pool and transfer them to the Idaho Chemical Processing Plant (ICPP) for interim dry storage until an alternate storage location other than at the INEL, or a permanent federal spent nuclear fuel (SNF) repository is available. The TAN Pool would be drained and placed in an industrially and radiologically safe condition for refurbishment or eventual decommissioning. This environmental assessment (EA) identifies and evaluates environmental impacts associated with (1) constructing an Interim Storage System (ISS) at ICPP; (2) removing the TMI and commercial fuels from the pool and transporting them to ICPP for placement in an ISS, and (3) draining and stabilizing the TAN Pool. Miscellaneous hardware would be removed and decontaminated or disposed of in the INEL Radioactive Waste Management Complex (RWMC). This EA also describes the environmental consequences of the no action alternative.

NONE

1996-05-01T23:59:59.000Z

5

Draft environmental assessment -- Test Area North pool stabilization project update  

SciTech Connect (OSTI)

The purpose of this Environmental Assessment (EA) is to update the ``Test Area North Pool Stabilization Project`` EA (DOE/EA-1050) and finding of no significant impact (FONSI) issued May 6, 1996. This update analyzes the environmental and health impacts of a drying process for the Three Mile Island (TMI) nuclear reactor core debris canisters now stored underwater in a facility on the Idaho National Engineering and Environmental Laboratory (INEEL). A drying process was analyzed in the predecision versions of the EA released in 1995 but that particular process was determined to be ineffective and dropped form the Ea/FONSI issued May 6, 1996. The origin and nature of the TMI core debris and the proposed drying process are described and analyzed in detail in this EA. As did the 1996 EA, this update analyzes the environmental and health impacts of removing various radioactive materials from underwater storage, dewatering these materials, constructing a new interim dry storage facility, and transporting and placing the materials into the new facility. Also, as did the 1996 EA, this EA analyzes the removal, treatment and disposal of water from the pool, and placement of the facility into a safe, standby condition. The entire action would take place within the boundaries of the INEEL. The materials are currently stored underwater in the Test Area North (TAN) building 607 pool, the new interim dry storage facility would be constructed at the Idaho Chemical Processing Plant (ICPP) which is about 25 miles south of TAN.

NONE

1997-06-01T23:59:59.000Z

6

Initial assessment of the MHD stability of TMX-U  

SciTech Connect (OSTI)

In its operation to date TMX-U has reached values of beta which, for all except the hot electron beta, are close to the proposal values and has not encountered MHD stability problems. The hot electron beta values are presently limited by gyrotron output power and pulse length as well as ion confinement time. Further exploration of stability awaits full thermal barrier operation.

Nexsen, W.E.

1983-08-04T23:59:59.000Z

7

Development of a body force description for compressor stability assessment  

E-Print Network [OSTI]

This thesis presents a methodology for a body force description of a compressor with particular application to compressor stability calculations. The methodology is based on extracting blade forces from an axisymmetric ...

Kiwada, George (George Ford)

2008-01-01T23:59:59.000Z

8

Measurement-based quantum repeaters  

E-Print Network [OSTI]

We introduce measurement-based quantum repeaters, where small-scale measurement-based quantum processors are used to perform entanglement purification and entanglement swapping in a long-range quantum communication protocol. In the scheme, pre-prepared entangled states stored at intermediate repeater stations are coupled with incoming photons by simple Bell-measurements, without the need of performing additional quantum gates or measurements. We show how to construct the required resource states, and how to minimize their size. We analyze the performance of the scheme under noise and imperfections, with focus on small-scale implementations involving entangled states of few qubits. We find measurement-based purification protocols with significantly improved noise thresholds. Furthermore we show that already resource states of small size suffice to significantly increase the maximal communication distance. We also discuss possible advantages of our scheme for different set-ups.

Zwerger, M; Briegel, H J

2012-01-01T23:59:59.000Z

9

Strategies for Voltage Control and Transient Stability Assessment  

SciTech Connect (OSTI)

As wind generation grows, its influence on power system performance will becoming increasingly noticeable. Wind generation di#11;ffers from traditional forms of generation in numerous ways though, motivating the need to reconsider the usual approaches to power system assessment and performance enhancement. The project has investigated the impact of wind generation on transient stability and voltage control, identifying and addressing issues at three distinct levels of the power system: 1) at the device level, the physical characteristics of wind turbine generators (WTGs) are quite unlike those of synchronous machines, 2) at the wind-farm level, the provision of reactive support is achieved through coordination of numerous dissimilar devices, rather than straightforward generator control, and 3) from a systems perspective, the location of wind-farms on the sub-transmission network, coupled with the variability inherent in their power output, can cause complex voltage control issues. The project has sought to develop a thorough understanding of the dynamic behaviour of type-3 WTGs, and in particular the WECC generic model. The behaviour of such models is governed by interactions between the continuous dynamics of state variables and discrete events associated with limits. It was shown that these interactions can be quite complex, and may lead to switching deadlock that prevents continuation of the trajectory. Switching hysteresis was proposed for eliminating deadlock situations. Various type-3 WTG models include control blocks that duplicate integrators. It was shown that this leads to non-uniqueness in the conditions governing steady-state, and may result in pre- and post-disturbance equilibria not coinciding. It also gives rise to a zero eigenvalue in the linearized WTG model. In order to eliminate the anomalous behaviour revealed through this investigation, WECC has now released a new generic model for type-3 WTGs. Wind-farms typically incorporate a variety of voltage control equipment including tapchanging transformers, switched capacitors, SVCs, STATCOMs and the WTGs themselves. The project has considered the coordinated control of this equipment, and has addressed a range of issues that arise in wind-farm operation. The #12;first concerns the ability of WTGs to meet reactive power requirements when voltage saturation in the collector network restricts the reactive power availability of individual generators. Secondly, dynamic interactions between voltage regulating devices have been investigated. It was found that under certain realistic conditions, tap-changing transformers may exhibit instability. In order to meet cost, maintenance, fault tolerance and other requirements, it is desirable for voltage control equipment to be treated as an integrated system rather than as independent devices. The resulting high-level scheduling of wind-farm reactive support has been investigated. In addressing this control problem, several forms of future information were considered, including exact future knowledge and stochastic predictions. Deterministic and Stochastic Dynamic Programming techniques were used in the development of control algorithms. The results demonstrated that while exact future knowledge is very useful, simple prediction methods yield little bene#12;fit. The integration of inherently variable wind generation into weak grids, particularly subtransmission networks that are characterized by low X=R ratios, aff#11;ects bus voltages, regulating devices and line flows. The meshed structure of these networks adds to the complexity, especially when wind generation is distributed across multiple nodes. A range of techniques have been considered for analyzing the impact of wind variability on weak grids. Sensitivity analysis, based on the power-flow Jacobian, was used to highlight sections of a system that are most severely a#11;ffected by wind-power variations. A continuation power flow was used to determine parameter changes that reduce the impact of wind-power variability. It was also used to explore interactions betw

Hiskens, Ian A.

2013-09-25T23:59:59.000Z

10

Numerical assessment of stability criteria from disturbance energies in gaseous combustion  

E-Print Network [OSTI]

Numerical assessment of stability criteria from disturbance energies in gaseous combustion A, which corresponds to a ducted, laminar premixed propane-air flame, is used to assess the different terms a contribution from the unsteady heat flux-pressure correlation, allows a better agreement with the numerical

Nicoud, Franck

11

3-D Electrical Resistivity Tomography for Cliff Stability Assessment at Pointe du Hoc in Normandy, France  

E-Print Network [OSTI]

purposes. The objective of this study is to apply advanced 3?D resistivity tomography toward a detailed site stability assessment with special attention to the two at-risk buildings. 3?D resistivity tomography datasets at Pointe du Hoc in the presence...

Udphuay, Suwimon

2010-01-14T23:59:59.000Z

12

Assessing climate change impacts on the near-term stability of the wind energy  

E-Print Network [OSTI]

Assessing climate change impacts on the near-term stability of the wind energy resource over- ble emissions of carbon dioxide. The wind energy resource is natu- rally a function of the climate, leading some to question the continued viability of the wind energy industry. Here we briefly articulate

Pryor, Sara C.

13

Stabilization  

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 Administrationcontroller systemsBiSiteNeutron Scattering4 By I. Tudosa,SpreadingStability of and

14

In Vitro Assessment of the In Vivo Stability of Cu-64 Radiopharmaceuticals  

SciTech Connect (OSTI)

Research Plans: The successful development of Cu-64 radiopharmaceuticals depends upon retention of the Cu-64 atom in the radiopharmaceutical. To date, the focus has been on the development of chelators that better retain Cu-64, but there has been no effort to develop an effective method by which improved retention may be measured. In the absence of a suitable analytical method, the stability of Cu-64 radiopharmaceuticals is estimated indirectly, with decreased liver uptake suggesting higher in vivo complex stability. But this approach is inadequate for radiopharmaceuticals, such as radiolabeled antibodies, that are expected to accumulate in the liver even when there is no free Cu-64 present. The absence of such a method has also hampered efforts to systematically evaluate the chemical factors that may give rise to improved retention. The objective of this project is to develop and validate such a method. Accomplishments: The two primary accomplishments of this project will be 1) the development and validation of a method to measure the stability of Cu-64 radiopharmaceuticals and 2) the determination of the chemical factors that define the in vivo stability of Cu 64 radiopharmaceuticals. Because Cu(II) is extremely labile, the in vivo stability of Cu-64 radiopharmaceuticals is not primarily determined by the amount of �¢����free�¢��� Cu that is present at any given time or by the thermodynamic stability constants, but rather by the rate at which Cu is lost from the complex, the dissociation rate constant, kd. The dissociation rate constants of the Cu-64 complexes from a series of bifunctional chelators (BFCs) will be measured using Free Ion Selective Radiotracer Extraction (FISRE), a technique originally developed to measure bioavailable Cu in environmental samples. FISRE will also be applied to the determination of the kd�¢����s of a series of reference Cu-64 complexes to determine the chemical factors that define the in vivo stability of Cu-64 radiopharmaceuticals. Potential Benefits: The FISRE method that will be used in this project, once validated, will provide researchers with a core technology by which the stability of Cu 64 radiopharmaceuticals can be accurately measured. In the short-term, we expect to produce extensive data regarding the stability of Cu-64 complexes of ligands of radiopharmaceutical interest, primarily those that are most commonly used as BFCs (e.g., DOTA, TETA). These data will provide a quantitative basis for deciding which ligands may be best suited for use as BFCs, data that is not currently available. In the intermediate term, we expect that these results will facilitate the development of new Cu-64 radiopharmaceuticals by providing a quantitative approach to assessing the stability of Cu-64 chelates. This innovative methodology will enable investigators to quantitatively compare the ability of different BFCs to retain Cu-64 in vivo. The benefits of this approach will be best seen in the development of Cu-64-labeled monoclonal antibodies where the accumulation of antibodies in the liver obviates liver uptake as an effective surrogate measure of Cu-64 lability. In the longer-term, we anticipate an improvement in the way in which various diseases (especially cancer) are detected, diagnosed, staged, and treated. This method will also enable researchers to distinguish differences in biodistribution that may arise from differences in charge, lipophilicity, etc. from those that may arise from loss of Cu-64 from the chelator. Last, this novel quantitative tool will allow investigators to evaluate the chemical factors that determine the in vivo stability of Cu-64 radiopharmaceuticals�¢����laying the groundwork for the future development of more effective Cu-64 radiopharmaceuticals. Once the feasibility of this method is established, it can also be used to evaluate the stability of other metalloradiopharmaceuticals including those based on Ga-68, a

Packard, Alan B.

2011-12-15T23:59:59.000Z

15

Universal resources for measurement-based quantum computation  

E-Print Network [OSTI]

We investigate which entanglement resources allow universal measurement-based quantum computation via single-qubit operations. We find that any entanglement feature exhibited by the 2D cluster state must also be present in any other universal resource. We obtain a powerful criterion to assess universality of graph states, by introducing an entanglement measure which necessarily grows unboundedly with the system size for all universal resource states. Furthermore, we prove that graph states associated with 2D lattices such as the hexagonal and triangular lattice are universal, and obtain the first example of a universal non-graph state.

Maarten Van den Nest; Akimasa Miyake; Wolfgang Dür; Hans J. Briegel

2006-10-16T23:59:59.000Z

16

Optimization strategies in measurement based quantum computation  

E-Print Network [OSTI]

This work introduces optimization strategies to continuous variable measurement based quantum computation (MBQC) at different levels. We provide a recipe for mitigating the effects of finite squeezing, which affect the production of cluster states and the result of a traditional MBQC. These strategies are readily implementable by several experimental groups. Furthermore, a more general scheme for MBQC is introduced that does not necessarily rely on the use of ancillary cluster states to achieve its aim, but rather on the detection of a resource state in a suitable mode basis followed by digital post-processing. A recipe is provided to optimize the adjustable parameters that are employed within this framework.

Giulia Ferrini; Jonathan Roslund; Francesco Arzani; Yin Cai; Claude Fabre; Nicolas Treps

2014-07-20T23:59:59.000Z

17

Electrochemical assessment and service-life prediction of mechanically stabilized earth walls backfilled with crushed concrete and recycled asphalt pavement  

E-Print Network [OSTI]

Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 2006 Major Subject: Civil Engineering ELECTROCHEMICAL ASSESSMENT AND SERVICE-LIFE PREDICTION... OF MECHANICALLY STABILIZED EARTH WALLS BACKFILLED WITH CRUSHED CONCRETE AND RECYCLED ASPHALT PAVEMENT A Thesis by MICHAEL WATTS ESFELLER, JR. Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment...

Esfeller, Michael Watts, Jr.

2009-06-02T23:59:59.000Z

18

Transient Stability Assessment of Power System with Large Amount of Wind Power Penetration: the  

E-Print Network [OSTI]

the transient stability. In Denmark, the onshore and offshore wind farms are connected to distribution system and transmission system respectively. The control and protection methodologies of onshore and offshore wind farms definitely affect the transient stability of power system. In this paper, the onshore and offshore wind farms

Bak, Claus Leth

19

Method and apparatus for assessing distillate-fuel stability by oxygen overpressure  

SciTech Connect (OSTI)

Reactions leading to insoluble sediments formation in distillate fuel are accelerated by forcing oxygen into solution in the fuel at pressures of between about 90 and 110 psig and then stressing the fuel under conditions of accelerated storage at temperatures of between about 40 C to 100 C. The method then makes use of gravimetric determination of the total insoubles formed. The stability of the fuel over a period of time as well as its comparitive stability to other fuels can then be predicted from the amount of insolubles formed. The method can be carried out by using a specialized pressure vessel.

Hardy, D.R.; Beal, E.J.; Burnett, J.C.

1989-06-27T23:59:59.000Z

20

Error reduction in slope stability assessment Jean-Alain Fleurisson and Roger Cojean  

E-Print Network [OSTI]

Tech, Centre de GĂ©osciences, Fontainebleau, France 1. Introduction Slopes in quarries and open pit mines on every continent or failure in open pit mines and quarries) in which safety and profitability to environmental issues, long-term stability of slopes in quarries, open pit mines and mainly embankments must

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "measurement-based stability assessment" 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

Steam generation in line-focus solar collectors: a comparative assessment of thermal performance, operating stability, and cost issues  

SciTech Connect (OSTI)

The engineering and system benefits of using direct steam (in situ) generation in line-focus collectors are assessed. The major emphasis of the analysis is a detailed thermal performance comparison of in situ systems (which utilize unfired boilers). The analysis model developed for this study is discussed in detail. An analysis of potential flow stability problems is also provided along with a cursory cost analysis and an assessment of freeze protection, safety, and control issues. Results indicated a significant thermal performance advantage over the more conventional oil and flash systems and the flow stability does not appear to be a significant problem. In particular, at steam temperatures of 220/sup 0/C (430/sup 0/F) under the chosen set of assumptions, annual delivered energy predictions indicate that the in situ system can deliver 15% more energy than an oil system and 12% more energy than a flash system, with all of the systems using the same collector field. Further, the in situ system may result in a 10% capital cost reduction. Other advantages include improvement in simpler control when compared with flash systems, and fluid handling and safety enhancement when compared with oil systems.

Murphy, L.M.; May, E.K.

1982-04-01T23:59:59.000Z

22

Towards Adaptive Educational Assessments: Predicting Student Performance using Temporal Stability and Data Analytics in Learning Management Systems  

SciTech Connect (OSTI)

Data-driven assessments and adaptive feedback are becoming a cornerstone research in educational data analytics and involve developing methods for exploring the unique types of data that come from the educational context. For example, predicting college student performance is crucial for both the students and educational institutions. It can support timely intervention to prevent students from failing a course, increasing efficacy of advising functions, and improving course completion rate. In this paper, we present our efforts in using data analytics that enable educationists to design novel data-driven assessment and feedback mechanisms. In order to achieve this objective, we investigate temporal stability of students grades and perform predictive analytics on academic data collected from 2009 through 2013 in one of the most commonly used learning management systems, called Moodle. First, we have identified the data features useful for assessments and predicting student outcomes such as students scores in homework assignments, quizzes, exams, in addition to their activities in discussion forums and their total Grade Point Average(GPA) at the same term they enrolled in the course. Second, time series models in both frequency and time domains are applied to characterize the progression as well as overall projections of the grades. In particular, the model analyzed the stability as well as fluctuation of grades among students during the collegiate years (from freshman to senior) and disciplines. Third, Logistic Regression and Neural Network predictive models are used to identify students as early as possible who are in danger of failing the course they are currently enrolled in. These models compute the likelihood of any given student failing (or passing) the current course. The time series analysis indicates that assessments and continuous feedback are critical for freshman and sophomores (even with easy courses) than for seniors, and those assessments may be provided using the predictive models. Numerical results are presented to evaluate and compare the performance of the developed models and their predictive accuracy. Our results show that there are strong ties associated with the first few weeks for coursework and they have an impact on the design and distribution of individual modules.

Thakur, Gautam [ORNL] [ORNL; Olama, Mohammed M [ORNL] [ORNL; McNair, Wade [ORNL] [ORNL; Sukumar, Sreenivas R [ORNL] [ORNL

2014-01-01T23:59:59.000Z

23

Coherent feedback that beats all measurement-based feedback protocols  

E-Print Network [OSTI]

We show that when the speed of control is bounded, there is a widely applicable minimal-time control problem for which a coherent feedback protocol is optimal, and is faster than all measurement-based feedback protocols, ...

Jacobs, Kurt

24

Measurement-Based Quantum Turing Machines and Questions of Universalities  

E-Print Network [OSTI]

Quantum measurement is universal for quantum computation. This universality allows alternative schemes to the traditional three-step organisation of quantum computation: initial state preparation, unitary transformation, measurement. In order to formalize these other forms of computation, while pointing out the role and the necessity of classical control in measurement-based computation, and for establishing a new upper bound of the minimal resources needed to quantum universality, a formal model is introduced by means of Measurement-based Quantum Turing Machines.

Simon Perdrix; Philippe Jorrand

2004-02-20T23:59:59.000Z

25

Measurement-Based Quantum Turing Machines and their Universality  

E-Print Network [OSTI]

Quantum measurement is universal for quantum computation. This universality allows alternative schemes to the traditional three-step organisation of quantum computation: initial state preparation, unitary transformation, measurement. In order to formalize these other forms of computation, while pointing out the role and the necessity of classical control in measurement-based computation, and for establishing a new upper bound of the minimal resources needed to quantum universality, a formal model is introduced by means of Measurement-based Quantum Turing Machines.

Simon Perdrix; Philippe Jorrand

2004-04-27T23:59:59.000Z

26

Coherent feedback that beats all measurement-based feedback protocols  

E-Print Network [OSTI]

We show that when the speed of control is bounded, there is a widely applicable minimal-time control problem for which a coherent feedback protocol is optimal, and is faster than all measurement-based feedback protocols, where the latter are defined in a strict sense. The superiority of the coherent protocol is due to the fact that it can exploit a geodesic path in Hilbert space, a path that measurement-based protocols cannot follow.

Kurt Jacobs; Xiaoting Wang; Howard M. Wiseman

2014-07-21T23:59:59.000Z

27

An Assessment of the Stability and the Potential for In-Situ Synthesis of Regulated Organic Compounds in High Level Radioactive Waste Stored at Hanford, Richland, Washington  

SciTech Connect (OSTI)

The stability assessment examined 269 non-detected regulated compounds, first seeking literature references of the stability of the compounds, then evaluating each compound based upon the presence of functional groups using professional judgment. Compounds that could potentially survive for significant periods in the tanks (>1 year) were designated as stable. Most of the functional groups associated with the regulated organic compounds were considered unstable under tank waste conditions. The general exceptions with respect to functional group stability are some simple substituted aromatic and polycyclic aromatic compounds that resist oxidation and the multiple substituted aliphatic and aromatic halides that hydrolyze or dehydrohalogenate slowly under tank waste conditions. One-hundred and eighty-one (181) regulated, organic compounds were determined as likely unstable in the tank waste environment.

Wiemers, K.D.; Babad, H.; Hallen, R.T.; Jackson, L.P.; Lerchen, M.E.

1999-01-04T23:59:59.000Z

28

Hybrid architecture for encoded measurement-based quantum computation  

E-Print Network [OSTI]

We present a hybrid scheme for quantum computation that combines the modular structure of elementary building blocks used in the circuit model with the advantages of a measurement-based approach to quantum computation. We show how to construct optimal resource states of minimal size to implement elementary building blocks for encoded quantum computation in a measurement-based way, including states for error correction and encoded gates. The performance of the scheme is determined by the quality of the resource states, where within this error model we find a threshold of the order of 10% local noise per particle for fault-tolerant quantum computation and quantum communication.

M. Zwerger; H. J. Briegel; W. Dür

2013-08-21T23:59:59.000Z

29

Accelerated screening methods for determining chemical and thermal stability of refrigerant-lubricant mixtures, Part 1: Method assessment. Final report  

SciTech Connect (OSTI)

This report presents results of a literature search performed to identify analytical techniques suitable for accelerated screening of chemical and thermal stabilities of different refrigerant/lubricant combinations. Search focused on three areas: Chemical stability data of HFC-134a and other non-chlorine containing refrigerant candidates; chemical stability data of CFC-12, HCFC-22, and other chlorine containing refrigerants; and accelerated thermal analytical techniques. Literature was catalogued and an abstract was written for each journal article or technical report. Several thermal analytical techniques were identified as candidates for development into accelerated screening tests. They are easy to operate, are common to most laboratories, and are expected to produce refrigerant/lubricant stability evaluations which agree with the current stability test ANSI/ASHRAE (American National Standards Institute/American Society of Heating, Refrigerating, and Air-Conditioning Engineers) Standard 97-1989, ``Sealed Glass Tube Method to Test the Chemical Stability of Material for Use Within Refrigerant Systems.`` Initial results of one accelerated thermal analytical candidate, DTA, are presented for CFC-12/mineral oil and HCFC-22/mineral oil combinations. Also described is research which will be performed in Part II to optimize the selected candidate.

Kauffman, R.

1993-04-01T23:59:59.000Z

30

Assessment of substrate-stabilizing factors for DnaK on the folding of aggregation-prone proteins  

SciTech Connect (OSTI)

Hydrophobic interactions between molecular chaperones and their nonnative substrates have been believed to be mainly responsible for both substrate recognition and stabilization against aggregation. However, the hydrophobic contact area between DnaK and its substrate proteins is very limited and other factors of DnaK for the substrate stabilization could not be excluded. Here, we covalently fused DnaK to the N-termini of aggregation-prone proteins in vivo. In the context of a fusion protein, DnaK has the ability to efficiently solubilize its linked proteins. The point mutation of the residue of DnaK critical for the substrate recognition and the deletion of the C-terminal substrate-binding domain did not have significant effect on the solubilizing ability of DnaK. The results imply that other factors of DnaK, distinct from the hydrophobic shielding of folding intermediates, also contributes to stabilization of its noncovalently bound substrates against aggregation. Elucidation of the nature of these factors would further enhance our understanding of the substrate stabilization of DnaK for expedited protein folding.

Ryu, Kisun; Kim, Chul Woo; Kim, Byung Hee [Department of Biotechnology, College of Engineering, Yonsei University, 134 Shinchon-Dong, Seodaemun-Gu, Seoul 120-749 (Korea, Republic of); Han, Kyoung Sim [Protheon Incorporated, Yonsei Engineering Research Center B120E, 134 Shinchon-Dong, Seodaemun-Gu, Seoul 120-749 (Korea, Republic of); Kim, Kyun-Hwan [Department of Pharmacology, School of Medicine, and Center for Diagnostic Medicine, Institute of Biomedical Science and Technology, Konkuk University, Seoul 143-701 (Korea, Republic of); Choi, Seong Il [Department of Biotechnology, College of Engineering, Yonsei University, 134 Shinchon-Dong, Seodaemun-Gu, Seoul 120-749 (Korea, Republic of); Institute of Life Science and Biotechnology, Yonsei University, 134 Shinchon-Dong, Seodaemun-Gu, Seoul 120-749 (Korea, Republic of)], E-mail: seongilchoi@daum.net; Seong, Baik L. [Department of Biotechnology, College of Engineering, Yonsei University, 134 Shinchon-Dong, Seodaemun-Gu, Seoul 120-749 (Korea, Republic of); Protheon Incorporated, Yonsei Engineering Research Center B120E, 134 Shinchon-Dong, Seodaemun-Gu, Seoul 120-749 (Korea, Republic of); Institute of Life Science and Biotechnology, Yonsei University, 134 Shinchon-Dong, Seodaemun-Gu, Seoul 120-749 (Korea, Republic of)], E-mail: blseong@yonsei.ac.kr

2008-08-15T23:59:59.000Z

31

Resources for Measurement-Based Quantum Carry-Lookahead Adder  

E-Print Network [OSTI]

We present the design of a quantum carry-lookahead adder using measurement-based quantum computation. QCLA utilizes MBQC`s ability to transfer quantum states in unit time to accelerate addition. The quantum carry-lookahead adder (QCLA) is faster than a quantum ripple-carry adder; QCLA has logarithmic depth while ripple adders have linear depth. QCLA is an order of magnitude faster than a ripple-carry adder when adding registers longer than 100 qubits but requires a cluster state that is an order of magnitude larger. Hand optimization results in a $\\approx$ 26% reduction in spatial resources for the circuit.

Agung Trisetyarso; Rodney Van Meter; Kohei M. Itoh

2009-02-14T23:59:59.000Z

32

Synchrophasor Measurement-Based Wind Plant Inertia Estimation: Preprint  

SciTech Connect (OSTI)

The total inertia stored in all rotating masses that are connected to power systems, such as synchronous generations and induction motors, is an essential force that keeps the system stable after disturbances. To ensure bulk power system stability, there is a need to estimate the equivalent inertia available from a renewable generation plant. An equivalent inertia constant analogous to that of conventional rotating machines can be used to provide a readily understandable metric. This paper explores a method that utilizes synchrophasor measurements to estimate the equivalent inertia that a wind plant provides to the system.

Zhang, Y.; Bank, J.; Wan, Y. H.; Muljadi, E.; Corbus, D.

2013-05-01T23:59:59.000Z

33

Fast, long-scan-range pump-probe measurement based on asynchronous sampling using a dual-  

E-Print Network [OSTI]

Fast, long-scan-range pump-probe measurement based on asynchronous sampling using a dual-scan-range pump-probe scheme is experimentally demonstrated using a dual-wavelength passively mode- locked fiber. 134(25), 10569­10583 (2012). 4. A. Schmidt, M. Chiesa, X. Chen, and G. Chen, "An optical pump

Wu, Shin-Tson

34

Sea-ice thickness measurement based on the dispersion of ice swell  

E-Print Network [OSTI]

-azimuth angles. The parameterization, that includes finding the best modeled ice thickness, is performed by usingSea-ice thickness measurement based on the dispersion of ice swell David Marsana) ISTerre, CNRS propagating in the Arctic sea ice cover is exploited in order to locally measure the ice thickness

35

1 ISERN-96-05 Practical Guidelines for Measurement-Based Process Improvement1  

E-Print Network [OSTI]

1 ISERN-96-05 Practical Guidelines for Measurement-Based Process Improvement1 Lionel C. Briand guidelines for efficient and useful software measurement aimed at process improvement in industry. Issues the consistency and completeness of measurement plans. More precisely, our guidelines will be defined

Briand, Lionel C.

36

A Measurement-Based Model of Energy Consumption for PLC Modems  

E-Print Network [OSTI]

A Measurement-Based Model of Energy Consumption for PLC Modems Wafae Bakkali(,§), Mohamed Tlich- ysis of the energy consumption of commercial broadband PLC modems is reported. Energy consumption measurements are carried out on the basis of pairs of many commercial PLC modems. Ethernet frames with variable

Paris-Sud XI, Université de

37

S. KHANNA, S. SARKAR, I. SHIN 1 An Energy Measurement Based Collision  

E-Print Network [OSTI]

S. KHANNA, S. SARKAR, I. SHIN 1 An Energy Measurement Based Collision Resolution Protocol Sanjeev Khanna, Saswati Sarkar, Insik Shin Abstract--- A central problem in wireless packet networks is the ef@cis.upenn.edu . S. Sarkar, Dept. of Electrical Engineering, University of Pennsylva­ nia, PA, USA. E­mail: swati

Sarkar, Saswati

38

On measurement-based quantum computation with the toric code states  

E-Print Network [OSTI]

We study measurement-based quantum computation (MQC) using as quantum resource the planar code state on a two-dimensional square lattice (planar analogue of the toric code). It is shown that MQC with the planar code state can be efficiently simulated on a classical computer if at each step of MQC the sets of measured and unmeasured qubits correspond to connected subsets of the lattice.

Sergey Bravyi; Robert Raussendorf

2006-10-19T23:59:59.000Z

39

Spin Stability  

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 Administrationcontroller systemsBiSiteNeutron Scattering4 By I. Tudosa, H. C. SiegmannSpin Stability

40

Material stabilization characterization management plan  

SciTech Connect (OSTI)

This document presents overall direction for characterization needs during stabilization of SNM at the Plutonium Finishing Plant (PFP). Technical issues for needed data and equipment are identified. Information on material categories and links to vulnerabilities are given. Comparison data on the material categories is discussed to assist in assessing the relative risks and desired processing priority.

GIBSON, M.W.

1999-08-31T23:59:59.000Z

Note: This page contains sample records for the topic "measurement-based stability assessment" 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

Classical simulation of measurement-based quantum computation on higher-genus surface-code states  

E-Print Network [OSTI]

We consider the efficiency of classically simulating measurement-based quantum computation on surface-code states. We devise a method for calculating the elements of the probability distribution for the classical output of the quantum computation. The operational cost of this method is polynomial in the size of the surface-code state, but in the worst case scales as $2^{2g}$ in the genus $g$ of the surface embedding the code. However, there are states in the code space for which the simulation becomes efficient. In general, the simulation cost is exponential in the entanglement contained in a certain effective state, capturing the encoded state, the encoding and the local post-measurement states. The same efficiencies hold, with additional assumptions on the temporal order of measurements and on the tessellations of the code surfaces, for the harder task of sampling from the distribution of the computational output.

Leonard Goff; Robert Raussendorf

2012-10-31T23:59:59.000Z

42

Similarity, entropy and subsethood measures based on cardinality of soft hybrid sets  

E-Print Network [OSTI]

The real world is inherently uncertain, imprecise and vague. Soft set theory was firstly introduced by Molodtsov in 1999 as a general mathematical tool for dealing with uncertainties, not clearly defined objects. A soft set consists of two parts which are parameter set and approximate value set. So while talking about any property on a soft set, it is notable to consider that each parts should be evaluated separately. In this paper, by taking into account this case, we firstly define the concept of cardinality of soft hybrid sets which are soft set, fuzzy soft set, fuzzy parameterized soft set and fuzzy parameterized fuzzy soft set. Then we discuss the entropy, similarity and subsethood measures based on cardinality in a soft hybrid set, and investigate the relationships among these concepts as well as related examples. Finally, we present an application which is a representation method based on cardinality of a soft hybrid space.

R?dvan ?ahin

2014-12-15T23:59:59.000Z

43

Universal resources for approximate and stochastic measurement-based quantum computation  

E-Print Network [OSTI]

We investigate which quantum states can serve as universal resources for approximate and stochastic measurement-based quantum computation, in the sense that any quantum state can be generated from a given resource by means of single-qubit (local) operations assisted by classical communication. More precisely, we consider the approximate and stochastic generation of states, resulting e.g. from a restriction to finite measurement settings or from possible imperfections in the resources or local operations. We show that entanglement-based criteria for universality obtained for the exact, deterministic case can be lifted to the much more general approximate, stochastic case, moving from the idealized situation considered in previous works, to the practically relevant context of non-perfect state preparation. We find that any entanglement measure fulfilling some basic requirements needs to reach its maximum value on some element of an approximate, stochastic universal family of resource states, as the resource size grows. This allows us to rule out various families of states as being approximate, stochastic universal. We provide examples of resources that are efficient approximate universal, but not exact deterministic universal. We also study the robustness of universal resources for measurement-based quantum computation under realistic assumptions about the (imperfect) generation and manipulation of entangled states, giving an explicit expression for the impact that errors made in the preparation of the resource have on the possibility to use it for universal approximate and stochastic state preparation. Finally, we discuss the relation between our entanglement-based criteria and recent results regarding the uselessness of states with a high degree of geometric entanglement as universal resources.

C. E. Mora; M. Piani; A. Miyake; M. Van den Nest; W. Dür; H. J. Briegel

2010-05-10T23:59:59.000Z

44

Assessment of children's understanding of dispositional stability  

E-Print Network [OSTI]

and 23 second- through fourth-graders made quantitative predictions of future generous behavior and ratings of kindness for peers given 2 pieces of behavioral information, the actor's motivational state and the valence (positive action vs. negative action...

Allen, Elizabeth Ann

1993-01-01T23:59:59.000Z

45

RCRA facility stabilization initiative  

SciTech Connect (OSTI)

The RCRA Facility Stabilization Initiative was developed as a means of implementing the Corrective Action Program`s management goals recommended by the RIS for stabilizing actual or imminent releases from solid waste management units that threaten human health and the environment. The overall goal of stabilization is to, as situations warrant, control or abate threats to human health and/or the environment from releases at RCRA facilities, and/or to prevent or minimize the further spread of contamination while long-term remedies are pursued. The Stabilization initiative is a management philosophy and should not be confused with stabilization technologies.

Not Available

1995-02-01T23:59:59.000Z

46

Stabilized radio frequency quadrupole  

DOE Patents [OSTI]

Disclosed is a long-vane stabilized radio frequency resonator for accelerating charged particles and including means defining a radio frequency resonator cavity, a plurality of long vanes mounted in the defining means for dividing the cavity into sections, and means interconnecting opposing ones of the plurality of vanes for stabilizing the resonator. 5 figs.

Lancaster, H.D.; Fugitt, J.A.; Howard, D.R.

1984-12-25T23:59:59.000Z

47

Homological stabilizer codes  

SciTech Connect (OSTI)

In this paper we define homological stabilizer codes on qubits which encompass codes such as Kitaev's toric code and the topological color codes. These codes are defined solely by the graphs they reside on. This feature allows us to use properties of topological graph theory to determine the graphs which are suitable as homological stabilizer codes. We then show that all toric codes are equivalent to homological stabilizer codes on 4-valent graphs. We show that the topological color codes and toric codes correspond to two distinct classes of graphs. We define the notion of label set equivalencies and show that under a small set of constraints the only homological stabilizer codes without local logical operators are equivalent to Kitaev's toric code or to the topological color codes. - Highlights: Black-Right-Pointing-Pointer We show that Kitaev's toric codes are equivalent to homological stabilizer codes on 4-valent graphs. Black-Right-Pointing-Pointer We show that toric codes and color codes correspond to homological stabilizer codes on distinct graphs. Black-Right-Pointing-Pointer We find and classify all 2D homological stabilizer codes. Black-Right-Pointing-Pointer We find optimal codes among the homological stabilizer codes.

Anderson, Jonas T., E-mail: jonastyleranderson@gmail.com

2013-03-15T23:59:59.000Z

48

Fiscal Year 2013 Revegetation Assessment  

SciTech Connect (OSTI)

This report summarizes the Fiscal Year 2013 Revegetation Assessment by Battelle Energy Alliance, LLC. This assessment was conducted to supplement documentation related to the Storm Water Pollution Prevention Plan for Construction Activities and to ensure that disturbed vegetation and soil at various locations are being restored. This report provides the following information for each site being monitored by the Idaho National Laboratory Environmental Support and Services: Summary of each site Assessment of vegetation status and site stabilization at each location Actions and Resolutions for each site. Six disturbed sites were evaluated for this assessment. One has achieved final stabilization. The remaining five sites not meeting the criteria for final stabilization will be evaluated again in the next fiscal year.

Jenifer Nordstrom

2013-11-01T23:59:59.000Z

49

Fiscal Year 2012 Revegetation Assessment  

SciTech Connect (OSTI)

This report summarizes the Fiscal Year 2012 Revegetation Assessment by Battelle Energy Alliance, LLC. This assessment was conducted to supplement documentation related to the Storm Water Pollution Prevention Plan for Construction Activities and to ensure that disturbed vegetation and soil at various locations are being restored. This report provides the following information for each site being monitored by the Idaho National Laboratory Environmental Support and Services: • Summary of each site • Assessment of vegetation status and site stabilization at each location • Actions and Resolutions for each site. Ten disturbed sites were evaluated for this assessment. Six have achieved final stabilization. The remaining four sites not meeting the criteria for final stabilization will be evaluated again in the next fiscal year.

Jenifer Nordstrom

2012-11-01T23:59:59.000Z

50

Ideal Stabilization Mikhail Nesterenko  

E-Print Network [OSTI]

StabilizationLegitimate #12;Questions · Existence ? · Construction ? · Composition ? · Implementation vs Mappings Program #12;Leader Election L L L L L L L L #12;Leader Election L L #12;Leader Election L L #12

Nesterenko, Mikhail

51

Thermal Stabilization Blend Plan  

SciTech Connect (OSTI)

This Blend Plan documents the feed material items that are stored in 2736-2 vaults, the 2736-ZB 638 cage, the 192C vault, and the 225 vault that will be processed through the thermal stabilization furnaces. The purpose of thermal stabilization is to heat the material to 1000 degrees Celsius to drive off all water and leave the plutonium and/or uranium as oxides. The stabilized material will be sampled to determine the Loss On Ignition (LOI) or percent water. The stabilized material must meet water content or LOI of less than 0.5% to be acceptable for storage under DOE-STD-3013-99 specifications. Out of specification material will be recycled through the furnaces until the water or LOI limits are met.

RISENMAY, H.R.

2000-05-02T23:59:59.000Z

52

Stabilization of compactible waste  

SciTech Connect (OSTI)

This report summarizes the results of series of experiments performed to determine the feasibility of stabilizing compacted or compactible waste with polymers. The need for this work arose from problems encountered at disposal sites attributed to the instability of this waste in disposal. These studies are part of an experimental program conducted at Brookhaven National Laboratory (BNL) investigating methods for the improved solidification/stabilization of DOE low-level wastes. The approach taken in this study was to perform a series of survey type experiments using various polymerization systems to find the most economical and practical method for further in-depth studies. Compactible dry bulk waste was stabilized with two different monomer systems: styrene-trimethylolpropane trimethacrylate (TMPTMA) and polyester-styrene, in laboratory-scale experiments. Stabilization was accomplished by wetting or soaking compactible waste (before or after compaction) with monomers, which were subsequently polymerized. Three stabilization methods are described. One involves the in-situ treatment of compacted waste with monomers in which a vacuum technique is used to introduce the binder into the waste. The second method involves the alternate placement and compaction of waste and binder into a disposal container. In the third method, the waste is treated before compaction by wetting the waste with the binder using a spraying technique. A series of samples stabilized at various binder-to-waste ratios were evaluated through water immersion and compression testing. Full-scale studies were conducted by stabilizing two 55-gallon drums of real compacted waste. The results of this preliminary study indicate that the integrity of compacted waste forms can be readily improved to ensure their long-term durability in disposal environments. 9 refs., 10 figs., 2 tabs.

Franz, E.M.; Heiser, J.H. III; Colombo, P.

1990-09-01T23:59:59.000Z

53

Renewable source controls for grid stability.  

SciTech Connect (OSTI)

The goal of this study was to evaluate the small signal and transient stability of the Western Electric- ity Coordinating Council (WECC) under high penetrations of renewable energy, and to identify control technologies that would improve the system performance. The WECC is the regional entity responsible for coordinating and promoting bulk electric system reliability in the Western Interconnection. Transient stability is the ability of the power system to maintain synchronism after a large disturbance while small signal stability is the ability of the power system to maintain synchronism after a small disturbance. Tran- sient stability analysis usually focuses on the relative rotor angle between synchronous machines compared to some stability margin. For this study we employed generator speed relative to system speed as a metric for assessing transient stability. In addition, we evaluated the system transient response using the system frequency nadir, which provides an assessment of the adequacy of the primary frequency control reserves. Small signal stability analysis typically identi es the eigenvalues or modes of the system in response to a disturbance. For this study we developed mode shape maps for the di erent scenarios. Prony analysis was applied to generator speed after a 1.4 GW, 0.5 second, brake insertion at various locations. Six di erent WECC base cases were analyzed, including the 2022 light spring case which meets the renewable portfolio standards. Because of the di culty in identifying the cause and e ect relationship in large power system models with di erent scenarios, several simulations were run on a 7-bus, 5-generator system to isolate the e ects of di erent con gurations. Based on the results of the study, for a large power system like the WECC, incorporating frequency droop into wind/solar systems provides a larger bene t to system transient response than replacing the lost inertia with synthetic inertia. From a small signal stability perspective, the increase in renewable penetration results in subtle changes to the system modes. In gen- eral, mode frequencies increase slightly, and mode shapes remain similar. The system frequency nadir for the 2022 light spring case was slightly lower than the other cases, largely because of the reduced system inertia. However, the nadir is still well above the minimum load shedding frequency of 59.5 Hz. Finally, several discrepancies were identi ed between actual and reported wind penetration, and additional work on wind/solar modeling is required to increase the delity of the WECC models.

Byrne, Raymond Harry; Elliott, Ryan Thomas; Neely, Jason C.; Silva Monroy, Cesar Augusto; Schoenwald, David Alan; Grant, Lisa

2012-12-01T23:59:59.000Z

54

Stabilized PV system  

DOE Patents [OSTI]

A stabilized PV system comprises an array of photovoltaic (PV) assemblies mounted to a support surface. Each PV assembly comprises a PV module and a support assembly securing the PV module to a position overlying the support surface. The array of modules is circumscribed by a continuous, belt-like perimeter assembly. Cross strapping, extending above, below or through the array, or some combination of above, below and through the array, secures a first position along the perimeter assembly to at least a second position along the perimeter assembly thereby stabilizing the array against wind uplift forces. The first and second positions may be on opposite sides on the array.

Dinwoodie, Thomas L. (Piedmont, CA)

2002-12-17T23:59:59.000Z

55

Stability of the aether  

E-Print Network [OSTI]

The requirements for stability of a Lorentz violating theory are analyzed. In particular we conclude that Einstein-aether theory can be stable when its modes have any phase velocity, rather than only the speed of light as was argued in a recent paper.

William Donnelly; Ted Jacobson

2012-01-16T23:59:59.000Z

56

Stability of the aether  

SciTech Connect (OSTI)

The requirements for stability of a Lorentz violating theory are analyzed. In particular we conclude that Einstein-aether theory can be stable when its modes have any phase velocity, rather than only the speed of light as was argued in a recent paper.

Donnelly, William; Jacobson, Ted [Center for Fundamental Physics, Department of Physics, University of Maryland at College Park, College Park, Maryland, 20742-4111 (United States)

2010-10-15T23:59:59.000Z

57

Stabilized chromium oxide film  

DOE Patents [OSTI]

Stabilized air-oxidized chromium films deposited on high-power klystron ceramic windows and sleeves having a thickness between 20 and 150A are useful in lowering secondary electron emission yield and in avoiding multipactoring and window failure due to overheating. The ceramic substrate for the film is chosen from alumina, sapphire or beryllium oxide.

Nyaiesh, A.R.; Garwin, E.L.

1986-08-04T23:59:59.000Z

58

Stabilized chromium oxide film  

DOE Patents [OSTI]

Stabilized air-oxidized chromium films deposited on high-power klystron ceramic windows and sleeves having a thickness between 20 and 150.ANG. are useful in lowering secondary electron emission yield and in avoiding multipactoring and window failure due to overheating. The ceramic substrate for the film is chosen from alumina, sapphire or beryllium oxide.

Garwin, Edward L. (Los Altos, CA); Nyaiesh, Ali R. (Palo Alto, CA)

1988-01-01T23:59:59.000Z

59

Orbit Stabilization of Nanosat  

SciTech Connect (OSTI)

An algorithm is developed to control a pulsed {Delta}V thruster on a small satellite to allow it to fly in formation with a host satellite undergoing time dependent atmospheric drag deceleration. The algorithm uses four short thrusts per orbit to correct for differences in the average radii of the satellites due to differences in drag and one thrust to symmetrize the orbits. The radial difference between the orbits is the only input to the algorithm. The algorithm automatically stabilizes the orbits after ejection and includes provisions to allow azimuthal positional changes by modifying the drag compensation pulses. The algorithm gives radial and azimuthal deadbands of 50 cm and 3 m for a radial measurement accuracy of {+-} 5 cm and {+-} 60% period variation in the drag coefficient of the host. Approaches to further reduce the deadbands are described. The methodology of establishing a stable orbit after ejection is illustrated in an appendix. The results show the optimum ejection angle to minimize stabilization thrust is upward at 86{sup o} from the orbital velocity. At this angle the stabilization velocity that must be supplied by the thruster is half the ejection velocity. An ejection velocity of 0.02 m/sat 86{sup o} gives an azimuthal separation after ejection and orbit stabilization of 187 m. A description of liquid based gas thrusters suitable for the satellite control is included in an appendix.

JOHNSON,DAVID J.

1999-12-01T23:59:59.000Z

60

Tetraphenylborate Solids Stability Tests  

SciTech Connect (OSTI)

Tetraphenylborate solids provide a potentially large source of benzene in the slurries produced in the In-Tank Precipitation process. The stability of the solids is an important consideration in the safety analysis of the process and we desire an understanding of the factors that influence the rate of conversion of the solids to benzene.

Walker, D.D. [Westinghouse Savannah River Company, AIKEN, SC (United States); Edwards, T.B.

1997-12-19T23:59:59.000Z

Note: This page contains sample records for the topic "measurement-based stability assessment" 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

Stability and Complexity in  

E-Print Network [OSTI]

and complexity of a commu- nity of interacting plants and animals, following the food web as a clue. Contrary in power. Stability and Complexity in Model Ecosystems played a key role in introducing nonlinear thinking, and current threats to biodiversity have made questions about the role of ecosystem complexity

Landweber, Laura

62

Stability of Coupling Algorithms  

E-Print Network [OSTI]

INTRODUCTION AND MOTIVATION : : : : : : : : : : : : : 1 A. Approaches to solving a coupled system . . . . . . . . . . . 3 B. Common terminology . . . . . . . . . . . . . . . . . . . . . 5 C. Classi cation of coupling algorithms . . . . . . . . . . . . . 7 1... equal, cA = cB = mA = mB = 1 and with dissipation, = 0:5 : : : : : : : : : : : : : : : : 26 10 Conditional stability observed with cA > cB. The material prop- erties: cA = 100; cB = 1; mA = mB = 1; = 1 : : : : : : : : : : : : : 27 11 An unstable...

Akkasale, Abhineeth

2012-07-16T23:59:59.000Z

63

Codeword Stabilized Quantum Codes  

E-Print Network [OSTI]

We present a unifying approach to quantum error correcting code design that encompasses additive (stabilizer) codes, as well as all known examples of nonadditive codes with good parameters. We use this framework to generate new codes with superior parameters to any previously known. In particular, we find ((10,18,3)) and ((10,20,3)) codes. We also show how to construct encoding circuits for all codes within our framework.

Andrew Cross; Graeme Smith; John A. Smolin; Bei Zeng

2007-09-27T23:59:59.000Z

64

Chassis stabilization system  

DOE Patents [OSTI]

A stabilizing suspension system is provided for vehicles carrying telescopic booms or aerial work platforms having a fixed axle and a oscillating axle. Hydraulic cylinders are connected to each end of the oscillating axle, each cylinder being capable of extending and retracting. An off level sensor senses the angle of tilt of the chassis in both left and right directions and, when a predetermined threshold of tilt has been detected, the hydraulic cylinder on the downhill side of the chassis is locked against retracting, but is free to move in the downhill direction to allow the downhill wheel to remain in contact with the ground.

Claxton, Gerald L. (Fresno, CA)

1999-01-01T23:59:59.000Z

65

Frequency, composition and stability of associations among individual largemouth bass  

E-Print Network [OSTI]

bass (Micropterus salmoides) at diel, daily and seasonal scales. Ecology of Freshwater Fish 2007: 16 bass. The temporal and spatial proximity of each fish relative to the other 19 individuals was assessedFrequency, composition and stability of associations among individual largemouth bass (Micropterus

Cooke, Steven J.

66

Molecular Structure and Stability of Dissolved Lithium Polysulfide Species  

SciTech Connect (OSTI)

Ability to predict the solubility and stability of lithium polysulfide is vital in realizing longer lasting lithium-sulfur batteries. Herein we report a combined computational and experimental spectroscopic analysis to understand the dissolution mechanism of lithium polysulfide species in an aprotic solvent medium. Multinuclear NMR and sulfur K-edge X-ray absorption (XAS) analysis reveals that the lithium exchange between polysulfide species and solvent molecule constitutes the first step in the dissolution process. Lithium exchange leads to de-lithiated polysulfide ions which subsequently forms highly reactive free radicals through disproportion reaction. The energy required for the disproportion and possible dimer formation reactions of the polysulfide species are analyzed using density functional theory (DFT) calculations. We validate our calculations with variable temperature electron spin resonance (ESR) measurements. Based on these findings, we discuss approaches to optimize the electrolyte in order to control the polysulfide solubility. The energy required for the disproportion and possible dimer formation reactions of the polysulfide species are analyzed using density functional theory (DFT) calculations. We validate our calculations with variable temperature electron spin resonance (ESR) measurements. Based on these findings, we discuss approaches to optimize the electrolyte in order to control the polysulfide solubility.

Vijayakumar, M.; Govind, Niranjan; Walter, Eric D.; Burton, Sarah D.; Shukla, Anil K.; Devaraj, Arun; Xiao, Jie; Liu, Jun; Wang, Chong M.; Karim, Ayman M.; Thevuthasan, Suntharampillai

2014-03-24T23:59:59.000Z

67

Validation of the new mixture design and testing protocol for lime stabilization  

E-Print Network [OSTI]

and testing protocol is presented for lime stabilized subgrades. Comparison of field test data and laboratory test data shows that laboratory design test properties were achieved in the field. These properties are used in a mechanistic analysis to assess...

Yusuf, Fateh Ul Anam Muhammad Shafee

2001-01-01T23:59:59.000Z

68

Fiscal Year 2009 Revegetation Assessment  

SciTech Connect (OSTI)

This report summarizes the Fiscal Year 2009 Revegetation Assessment by Battelle Energy Alliance, LLC. This assessment was conducted to supplement documentation related to the Storm Water Pollution Prevention Plan for Construction Activities and to ensure that disturbed vegetation and soil at various locations are being restored. This report provides the following information for each site being monitored by the Idaho National Laboratory Environmental Support and Services: • Summary of each site • Assessment of vegetation status and site stabilization at each location • Recommendation(s) for each site.

Michael Lewis

2009-10-01T23:59:59.000Z

69

Fiscal Year 2010 Revegetation Assessment  

SciTech Connect (OSTI)

This report summarizes the Fiscal Year 2010 Revegetation Assessment by Battelle Energy Alliance, LLC. This assessment was conducted to supplement documentation related to the Storm Water Pollution Prevention Plan for Construction Activities and to ensure that disturbed vegetation and soil at various locations are being restored. This report provides the following information for each site being monitored by the Idaho National Laboratory Environmental Support and Services: • Summary of each site • Assessment of vegetation status and site stabilization at each location • Recommendation(s) for each site.

Jenifer Nordstrom; Mike Lewis

2010-11-01T23:59:59.000Z

70

Aerodynamic Drag and Gyroscopic Stability  

E-Print Network [OSTI]

This paper describes the effects on aerodynamic drag of rifle bullets as the gyroscopic stability is lowered from 1.3 to 1.0. It is well known that a bullet can tumble for stability less than 1.0. The Sierra Loading Manuals (4th and 5th Editions) have previously reported that ballistic coefficient decreases significantly as gyroscopic stability, Sg, is lowered below 1.3. These observations are further confirmed by experiments reported here. Measured ballistic coefficients were compared with gyroscopic stabilities computed using the Miller Twist Rule for nearly solid metal bullets with uniform density and computed using the Courtney-Miller formula for plastic-tipped bullets. The relationship between Sg and drag may be used to test the applicability of existing gyroscopic stability formulas for given bullet designs and to evaluate the accuracy of alternate formulas in cases where the existing stability formulas are not as accurate. The most definitive test of formulas predicting stability will always be observation of whether bullets tumble under given conditions. However, observations of drag changes provide valuable supplemental information because they suggest changes in stability as conditions change. Use of a continuous variable (drag) rather than a binary variable (tumbling) allows insight into stability over a range of conditions where the binary variable does not change.

Elya R. Courtney; Michael W. Courtney

2014-10-16T23:59:59.000Z

71

Laser controlled flame stabilization  

DOE Patents [OSTI]

A method and apparatus is provided for initiating and stabilizing fuel combustion in applications such as gas turbine electrical power generating engines and jet turbine engines where it is desired to burn lean fuel/air mixtures which produce lower amounts of NO.sub.x. A laser induced spark is propagated at a distance from the fuel nozzle with the laser ignitor being remotely located from the high temperature environment of the combustion chamber. A laser initiating spark generated by focusing high peak power laser light to a sufficiently tight laser spot within the fuel to cause the ionization of air and fuel into a plasma is unobtrusive to the flow dynamics of the combustion chamber of a fuel injector, thereby facilitating whatever advantage can be taken of flow dynamics in the design of the fuel injector.

Early, James W. (Los Alamos, NM); Thomas, Matthew E. (Huntsville, AL)

2001-01-01T23:59:59.000Z

72

IMPROVED ROOF STABILIZATION TECHNOLOGIES  

SciTech Connect (OSTI)

Many U.S. Department of Energy (DOE) remediation sites have performed roof repair and roof replacement to stabilize facilities prior to performing deactivation and decommissioning (D&D) activities. This project will review the decision criteria used by these DOE sites, along with the type of repair system used for each different roof type. Based on this information, along with that compiled from roofing experts, a decision-making tool will be generated to aid in selecting the proper roof repair systems. Where appropriate, innovative technologies will be reviewed and applied to the decision-making tool to determine their applicability. Based on the results, applied research and development will be conducted to develop a method to repair these existing roofing systems, while providing protection for the D and D worker in a cost-efficient manner.

M.A. Ebadian, Ph.D.

1999-01-01T23:59:59.000Z

73

Comparing resolved-sideband cooling and measurement-based feedback cooling on an equal footing: analytical results in the regime of ground-state cooling  

E-Print Network [OSTI]

We show that in the regime of ground-state cooling, simple expressions can be derived for the performance of resolved-sideband cooling --- an example of coherent feedback control --- and optimal linear measurement-based feedback cooling for a harmonic oscillator. These results are valid to leading order in the small parameters that define this regime. They provide insight into the origins of the limitations of coherent and measurement-based feedback for linear systems, and the relationship between them. These limitations are not fundamental bounds imposed by quantum mechanics, but are due to the fact that both cooling methods are restricted to use only a linear interaction with the resonator. We compare the performance of the two methods on an equal footing --- that is, for the same interaction strength --- and confirm that coherent feedback is able to make much better use of the linear interaction than measurement-based feedback. We find that this performance gap is caused not by the back-action noise of the measurement but by the projection noise. We also obtain simple expressions for the maximal cooling that can be obtained by both methods in this regime, optimized over the interaction strength.

Kurt Jacobs; Hendra I. Nurdin; Frederick W. Strauch; Matthew James

2015-03-19T23:59:59.000Z

74

E-Print Network 3.0 - assessment program fiscal Sample Search...  

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

The effectiveness of fiscal stimulus cannot be assessed independently of the medium-term fis- cal outlook. Given... Debt consolidation and fiscal stabilization of deep recessions...

75

QUANTITATIVE STABILITY ANALYSIS OF STOCHASTIC ...  

E-Print Network [OSTI]

? is said to be lower semi-continuous (lsc for short) at Żx ? X if and only if ..... It is also known as a distance of probability measures having ?-structure, see [45] ...... In order to compare the previous novel stability result for two-stage models ...... Quantitative stability in stochastic programming: The method of probability metrics ...

2013-07-14T23:59:59.000Z

76

Stabilized radio-frequency quadrupole  

DOE Patents [OSTI]

A long-vane stabilized radio frequency resonator for accelerating charged particles and including means defining a radio frequency resonator cavity, a plurality of long vanes mounted in the defining means for dividing the cavity into sections, and means interconnecting opposing ones of the plurality of vanes for stabilizing the resonator.

Lancaster, H.D.; Fugitt, J.A.; Howard, D.R.

1982-09-29T23:59:59.000Z

77

Real-Time Security Assessment of Angle Stability Using Synchrophasors  

E-Print Network [OSTI]

during this project) and Floyd Galvan (Entergy) for their support throughout this project. The project (TVA) · Sujit Mandal (Entergy) · William Mittelstadt (BPA) · Kolluri Sharma (Entergy). We thank all our

78

assessing thermal stability: Topics by E-print Network  

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

Websites Summary: Funding: 75,000 Term: July 2002 - June 2003 PIER Subject Area: Renewable Energy Technologies 12;Page i-of-concept energy research. PIER funding efforts...

79

Improved Offshore Wind Resource Assessment in Global Climate Stabilization Scenarios  

SciTech Connect (OSTI)

This paper introduces a technique for digesting geospatial wind-speed data into areally defined -- country-level, in this case -- wind resource supply curves. We combined gridded wind-vector data for ocean areas with bathymetry maps, country exclusive economic zones, wind turbine power curves, and other datasets and relevant parameters to build supply curves that estimate a country's offshore wind resource defined by resource quality, depth, and distance-from-shore. We include a single set of supply curves -- for a particular assumption set -- and study some implications of including it in a global energy model. We also discuss the importance of downscaling gridded wind vector data to capturing the full resource potential, especially over land areas with complex terrain. This paper includes motivation and background for a statistical downscaling methodology to account for terrain effects with a low computational burden. Finally, we use this forum to sketch a framework for building synthetic electric networks to estimate transmission accessibility of renewable resource sites in remote areas.

Arent, D.; Sullivan, P.; Heimiller, D.; Lopez, A.; Eurek, K.; Badger, J.; Jorgensen, H. E.; Kelly, M.; Clarke, L.; Luckow, P.

2012-10-01T23:59:59.000Z

80

DOE/EA-0978 ENVIRONMENTAL ASSESSMENT SLUDGE STABILIZATION AT  

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

limit latent cancer fatality National Emission Standards for Hazardous Air Pollutants Plutonium Finishing Plant Plutonium Reclamation Facility Plutonium-Uranium...

Note: This page contains sample records for the topic "measurement-based stability assessment" 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

Project Management Plan Solution Stabilization  

SciTech Connect (OSTI)

This plan presents the overall objectives, description, justification and planning for the Plutonium Finishing Plant (PFP) Solutions Stabilization subproject. The intent of this plan is to describe how this project will be managed and integrated with other facility stabilization and deactivation activities. This plan supplements the overall integrated plan presented in the Integrated Project Management Plan (IPMP) for the Plutonium Finishing Plant Stabilization and Deactivation Project, HNF-3617. This project plan is the top-level definitive project management document for the PFP Solution Stabilization subproject. It specifies the technical, schedule, requirements and the cost baselines to manage the execution of the Solution Stabilization subproject. Any deviations to the document must be authorized through the appropriate change control process.

SATO, P.K.

1999-08-31T23:59:59.000Z

82

Phase stabilities at a glance: Stability diagrams of nickel dipnictides  

SciTech Connect (OSTI)

In the course of the recent advances in chemical structure prediction, a straightforward type of diagram to evaluate phase stabilities is presented based on an expedient example. Crystal structures and energetic stabilities of dipnictides NiPn{sub 2} (Pn = N, P, As, Sb, Bi) are systematically investigated by first principles calculations within the framework of density functional theory using the generalized gradient approximation to treat exchange and correlation. These dipnictides show remarkable polymorphism that is not yet understood systematically and offers room for the discovery of new phases. Relationships between the concerned structures including the marcasite, the pyrite, the arsenopyrite/CoSb{sub 2}, and the NiAs{sub 2} types are highlighted by means of common structural fragments. Electronic stabilities of experimentally known and related AB{sub 2} structure types are presented graphically in so-called stability diagrams. Additionally, competing binary phases are taken into consideration in the diagrams to evaluate the stabilities of the title compounds with respect to decomposition. The main purpose of the stability diagrams is the introduction of an image that enables the estimation of phase stabilities at a single glance. Beyond that, some of the energetically favored structure types can be identified as potential new phases.

Bachhuber, F. [University of Regensburg, Institute of Inorganic Chemistry, Universitätsstr. 31, 93040 Regensburg (Germany) [University of Regensburg, Institute of Inorganic Chemistry, Universitätsstr. 31, 93040 Regensburg (Germany); School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland (New Zealand); Rothballer, J.; Weihrich, R., E-mail: richard.weihrich@chemie.uni-r.de [University of Regensburg, Institute of Inorganic Chemistry, Universitätsstr. 31, 93040 Regensburg (Germany); Söhnel, T. [School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland (New Zealand) [School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland (New Zealand); Centre for Theoretical Chemistry and Physics, The New Zealand Institute for Advanced Study, Massey University Auckland, Auckland (New Zealand)

2013-12-07T23:59:59.000Z

83

Stabilizer for motor vehicle  

SciTech Connect (OSTI)

This patent describes a stabilizer for a motor vehicle comprising: a rod-shaped torsion section extending in the transverse direction of a motor vehicle; a pair of arm sections continuous with both ends of the torsion section and extending in the longitudinal direction of the motor vehicle; a first member attached to the torsion section or at least one of the arm sections and formed with an axially penetrating cylindrical bore; a columnar second member inserted in the bore of the first member; at least one coil spring disposed between the inner peripheral surface of the bore of the first member and the outer peripheral surface of the second member and wound around the second member, at least one end of the coil spring being a free end; an operating member connected to the free end of the coil spring, at least a part of the operating member being located outside the first member; and drive means coupled to the operating member and adapted to apply a force in a direction such that the diameter of the coil spring is increased or reduced.

Takadera, I.; Kuroda, S.

1986-11-11T23:59:59.000Z

84

Innovative sludge stabilization method  

SciTech Connect (OSTI)

Sludge is generated in many water and wastewater treatment processes, both biological and physical/chemical. Examples include biological sludges from sanitary and industrial wastewater treatment operations and chemical sludges such as those produced when metals are removed from metal plating wastewater. Even some potable water plants produce sludge, such as when alum is used as a flocculating agent to clarify turbid water. Because sludge is produced from such a variety of operations, different techniques have been developed to remove water from sludges and reduce the sludge volume and mass, thus making the sludge more suitable for recovery or disposal. These techniques include mechanical (e.g., filter presses), solar (sludge drying beds), and thermal. The least expensive of these methods, neglecting land costs, involves sludge drying beds and lagoons. The solar method was widely used in sewage treatment plants for many years, but has fallen in disfavor in the US; mechanical and thermal methods have been preferred. Since environmental remediation often requires managing sludges, this article presents a discussion of a variation of sludge lagoons known as evaporative sludge stabilization. Application of this process to the closure of two 2.5 acre (10117 m{sup 2}) hazardous waste surface impoundments will be discussed. 1 ref., 2 figs.

Riggenbach, J.D.

1995-06-01T23:59:59.000Z

85

Ferrocyanide tank waste stability  

SciTech Connect (OSTI)

Ferrocyanide wastes were generated at the Hanford Site during the mid to late 1950s as a result of efforts to create more tank space for the storage of high-level nuclear waste. The ferrocyanide process was developed to remove [sup 137]CS from existing waste and newly generated waste that resulted from the recovery of valuable uranium in Hanford Site waste tanks. During the course of research associated with the ferrocyanide process, it was recognized that ferrocyanide materials, when mixed with sodium nitrate and/or sodium nitrite, were capable of violent exothermic reaction. This chemical reactivity became an issue in the 1980s, when safety issues associated with the storage of ferrocyanide wastes in Hanford Site tanks became prominent. These safety issues heightened in the late 1980s and led to the current scrutiny of the safety issues associated with these wastes, as well as current research and waste management programs. Testing to provide information on the nature of possible tank reactions is ongoing. This document supplements the information presented in Summary of Single-Shell Tank Waste Stability, WHC-EP-0347, March 1991 (Borsheim and Kirch 1991), which evaluated several issues. This supplement only considers information particular to ferrocyanide wastes.

Fowler, K.D.

1993-01-01T23:59:59.000Z

86

Field investigation of keyblock stability  

SciTech Connect (OSTI)

Discontinuities in a rock mass can intersect an excavation surface to form discrete blocks (keyblocks) which can be unstable. This engineering problem is divided into two parts: block identification, and evaluation of block stability. One stable keyblock and thirteen fallen keyblocks were observed in field investigations at the Nevada Test Site. Nine blocks were measured in detail sufficient to allow back-analysis of their stability. Measurements included block geometry, and discontinuity roughness and compressive strength. Back-analysis correctly predicted stability or failure in all but two cases. These two exceptions involved situations that violated the stress assumptions of the stability calculations. Keyblock faces correlated well with known joint set orientations. The effect of tunnel orientation on keyblock frequency was apparent. Back-analysis of physical models successfully predicted block pullout force for two-dimensional models of unit thickness. Two-dimensional (2D) and three-dimensional (3D) analytic models for the stability of simple pyramidal keyblocks were examined. Calculated stability is greater for 3D analyses than for 2D analyses. Calculated keyblock stability increases with larger in situ stress magnitudes, larger lateral stress ratios, and larger shear strengths. Discontinuity stiffness controls block displacement more strongly than it does stability itself. Large keyblocks are less stable than small ones, and stability increases as blocks become more slender. Rock mass temperature decreases reduce the confining stress magnitudes and can lead to failure. The pattern of stresses affecting each block face explains conceptually the occurrence of pyramidal keyblocks that are truncated near their apex.

Yow, J.L. Jr.

1985-04-01T23:59:59.000Z

87

In situ mercury stabilization  

SciTech Connect (OSTI)

BNL Royalty Project Internal Status Report. The funds from the allotment of royalty income were used to experimentally explore feasibility of related, potential new techniques based on the Environmental Sciences Department successful technology licensed for the ex situ treatment of mercury. Specifically, this work is exploring the concept of using Sulfur Polymer Cement (SPC) in an in situ application to stabilize and/or remove mercury (Hg) from surficial soil. Patent disclosure forms have been filed for this process. Soil was artificially spiked with 500 ppm Hg and a series of experiments were set up in which SPC rods were placed in the center of a mass of this soil. Some experiments were conducted at 20 C and others at 50 C. After times ranging from 11 to 24 days, these experiments were opened, photographed and the soil was sampled from discrete locations in the containers. The soil and SPC samples were analyzed for Fe and Hg by x-ray fluorescence. The Hg profile in the soil was significantly altered, with concentrations along the outer edge of the soil reduced by as much as 80% from the starting concentration. Conversely, closer to the treatment rod containing SPC, concentrations of Hg were significantly increased over the original concentration. Preliminary results for elevated temperature sample are shown graphically in Figure 2. Apparently the Hg had migrated toward the SPC and reacted with sulfur to form Hg S. This appears to be a reaction between gaseous phases of both S and Hg, with Hg having a greater vapor pressure. The concentration of low solubility HgS (i.e., low leaching properties) developed within 11 days at 50 C and 21 days at 20 C, confirming the potential of this concept.

Fuhrmann, M.; Kalb, P.; Adams, J.

2004-09-01T23:59:59.000Z

88

Plutonium stabilization and packaging system  

SciTech Connect (OSTI)

This document describes the functional design of the Plutonium Stabilization and Packaging System (Pu SPS). The objective of this system is to stabilize and package plutonium metals and oxides of greater than 50% wt, as well as other selected isotopes, in accordance with the requirements of the DOE standard for safe storage of these materials for 50 years. This system will support completion of stabilization and packaging campaigns of the inventory at a number of affected sites before the year 2002. The package will be standard for all sites and will provide a minimum of two uncontaminated, organics free confinement barriers for the packaged material.

NONE

1996-05-01T23:59:59.000Z

89

Tennessee Electrical Contractor Witnesses Stabilization | Department...  

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

Tennessee Electrical Contractor Witnesses Stabilization Tennessee Electrical Contractor Witnesses Stabilization April 2, 2010 - 11:31am Addthis Joshua DeLung David Andrews of...

90

EXISTENCE AND STABILITY RESULTS BASED ON ASYMPTOTIC ...  

E-Print Network [OSTI]

Abstract. This work is devoted to the study of existence and stability results of semidefi- .... work some stability results formerly proven in [4, 7, 21, 22] for linear,

2011-09-12T23:59:59.000Z

91

Irradiation Stability of Carbon Nanotubes  

E-Print Network [OSTI]

Ion irradiation of carbon nanotubes is a tool that can be used to achieve modification of the structure. Irradiation stability of carbon nanotubes was studied by ion and electron bombardment of the samples. Different ion species at various energies...

Aitkaliyeva, Assel

2010-01-14T23:59:59.000Z

92

Stabilization and Global Climate Policy  

E-Print Network [OSTI]

Academic and political debates over long-run climate policy often invoke “stabilization” of atmospheric concentrations of greenhouse gases (GHGs), but only rarely are non-CO2 greenhouse gases addressed explicitly. Even ...

Sarofim, Marcus C.

93

Quantum stabilizer codes and beyond  

E-Print Network [OSTI]

QUANTUM STABILIZER CODES AND BEYOND A Dissertation by PRADEEP KIRAN SARVEPALLI Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY August 2008 Major... Subject: Computer Science QUANTUM STABILIZER CODES AND BEYOND A Dissertation by PRADEEP KIRAN SARVEPALLI Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY...

Sarvepalli, Pradeep Kiran

2008-10-10T23:59:59.000Z

94

High voltage stability performance of a gamma ray detection device  

SciTech Connect (OSTI)

An industrial grade digital radiation survey meter device is currently being developed at Malaysian Nuclear Agency. This device used a cylindrical type Geiger Mueller (GM) which acts as a detector. GM detector operates at relatively high direct current voltages depend on the type of GM tube. This thin/thick walled cylindrical type of GM tube operates at 450-650 volts range. Proper value and stability performance of high voltage are important parameters to ensure that this device give a reliable radiation dose measurement. This paper will present an assessment of the stability and performance of the high voltage supply for radiation detector. The assessment is performed using System Identification tools box in MATLAB and mathematical statistics.

Abdullah, Nor Arymaswati; Lombigit, Lojius; Rahman, Nur Aira Abd [Technical Support Division, Malaysian Nuclear Agency, 43000 Kajang, Selangor (Malaysia)

2014-02-12T23:59:59.000Z

95

Slope stability of geosynthetic clay liner test plots  

SciTech Connect (OSTI)

Fourteen full-scale field test plots containing five types of geosynthetic clay liners (GCLs) were constructed on 2H:1V and 3H:1V slopes for the purpose of assessing slope stability. The test plots were designed to simulate typical final cover systems for landfills. Slides occurred in two of the 2H:1V test plots along interfaces between textured geomembranes and the woven geotextile components of internally reinforced GCLs. One additional slide occurred within the unreinforced GCL component of a 2H:1V test plot, when the GCL unexpectedly became hydrated. All 3H:1V slopes have remained stable. Results of laboratory direct shear tests compared favorably with field observations, providing support for the current design procedures that engineers are using for assessing the stability of slopes containing GCLs.

Daniel, D.E. [Univ. of Illinois, Urbana, IL (United States); Koerner, R.M. [Drexel Univ., Philadelphia, PA (United States). Geosynthetic Research Inst.; Bonaparte, R. [GeoSyntec Consultants, Atlanta, GA (United States); Landreth, R.E. [Landreth, (Robert E.), West Chester, OH (United States); Carson, D.A. [Environmental Protection Agency, Cincinnati, OH (United States); Scranton, H.B. [Haley and Aldrich, Boston, MA (United States)

1998-07-01T23:59:59.000Z

96

Technology Assessment  

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

Roll to Roll (R2R) Processing 1 Technology Assessment 2 3 Contents 4 1. Introduction to the TechnologySystem ......

97

Stability of thin-shell interfaces inside compact stars  

E-Print Network [OSTI]

We use the thin-shell Darmois-Israel formalism to model and assess the stability of the interfaces separating phases, e.g. the core and the crust, within compact stars. We exemplify the relevance and non-triviality of this treatment in the simplest case of an incompressible star, in constant pressure phase transitions, and in the case of strange quark stars with crust.

Jonas P. Pereira; Jaziel G. Coelho; Jorge A. Rueda

2015-01-05T23:59:59.000Z

98

Consequence Assessment  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

This volume focuses on the process of performing timely initial assessments necessary to support critical first decisions and the continuous process of refining those initial assessments as more information and resources become available. Canceled by DOE G 151.1-4.

1997-08-21T23:59:59.000Z

99

Simultaneous stabilization, avoidance and Goldberg's constants  

E-Print Network [OSTI]

to stabilizing the system which consists of a steam engine controlled by the governor. Several photographs

Eremenko, Alexandre

100

Material Stabilization Project Management Plan  

SciTech Connect (OSTI)

This plan presents the overall objectives, description, justification and planning for the plutonium Finishing Plant (PFP) Materials Stabilization project. The intent of this plan is to describe how this project will be managed and integrated with other facility stabilization and deactivation activities. This plan supplements the overall integrated plan presented in the Plutonium Finishing Plant Integrated Project Management Plan (IPMP), HNF-3617, Rev. 0. This is the top-level definitive project management document that specifies the technical (work scope), schedule, and cost baselines to manager the execution of this project. It describes the organizational approach and roles/responsibilities to be implemented to execute the project. This plan is under configuration management and any deviations must be authorized by appropriate change control action. Materials stabilization is designated the responsibility to open and stabilize containers of plutonium metal, oxides, alloys, compounds, and sources. Each of these items is at least 30 weight percent plutonium/uranium. The output of this project will be containers of materials in a safe and stable form suitable for storage pending final packaging and/or transportation offsite. The corrosion products along with oxides and compounds will be stabilized via muffle furnaces to reduce the materials to high fired oxides.

SPEER, D.R.

1999-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "measurement-based stability assessment" 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

Stability of autonomous systems The pole placement problem Stabilization by state feedback State observers Pole placement and Stability, Pole Placement, Observers and  

E-Print Network [OSTI]

Stability of autonomous systems The pole placement problem Stabilization by state feedback State University of Groningen Stability, Pole Placement, Observers and Stabilization #12;Stability of autonomous and Outline 1 Stability of autonomous systems 2 The pole placement problem 3 Stabilization by state feedback 4

Trentelman, Harry L.

102

Stability-Constrained Optimal Power Flow and Its Application to Pricing Power System Stabilizers  

E-Print Network [OSTI]

locational marginal prices. A power system stabilizer (PSS) is then introduced in the test system, locational marginal prices, power system stabilizer, voltage stability. I. INTRODUCTION THE deregulation1 Stability-Constrained Optimal Power Flow and Its Application to Pricing Power System Stabilizers

Cañizares, Claudio A.

103

Risk Assessment  

Broader source: Energy.gov [DOE]

A set of issues that state and local governments should carefully consider, with the goal of helping them assess and anticipate solutions for some worst case or unfortunate case scenarios as they...

104

Stability of Molten Core Materials  

SciTech Connect (OSTI)

The purpose of this report is to document a literature and data search for data and information pertaining to the stability of nuclear reactor molten core materials. This includes data and analysis from TMI-2 fuel and INL’s LOFT (Loss of Fluid Test) reactor project and other sources.

Layne Pincock; Wendell Hintze

2013-01-01T23:59:59.000Z

105

Stability of charged thin shells  

SciTech Connect (OSTI)

In this article we study the mechanical stability of spherically symmetric thin shells with charge, in Einstein-Maxwell and Einstein-Born-Infeld theories. We analyze linearized perturbations preserving the symmetry, for shells around vacuum and shells surrounding noncharged black holes.

Eiroa, Ernesto F. [Instituto de Astronomia y Fisica del Espacio, C.C. 67, Suc. 28, 1428, Buenos Aires (Argentina); Departamento de Fisica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria Pab. I, 1428, Buenos Aires (Argentina); Simeone, Claudio [Departamento de Fisica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria Pab. I, 1428, Buenos Aires (Argentina); IFIBA, CONICET, Ciudad Universitaria Pab. I, 1428, Buenos Aires (Argentina)

2011-05-15T23:59:59.000Z

106

Aerodynamic Drag and Gyroscopic Stability  

E-Print Network [OSTI]

This paper describes the effects on aerodynamic drag of rifle bullets as the gyroscopic stability is lowered from 1.3 to 1.0. It is well known that a bullet can tumble for stability less than 1.0. The Sierra Loading Manuals (4th and 5th Editions) have previously reported that ballistic coefficient decreases significantly as gyroscopic stability, Sg, is lowered below 1.3. These observations are further confirmed by the experiments reported here. Measured ballistic coefficients were compared with gyroscopic stabilities computed using the Miller Twist Rule for nearly solid metal bullets with uniform density and computed using the Courtney-Miller formula for plastic-tipped bullets. The experiments reported here also demonstrate a decrease in aerodynamic drag near Sg = 1.23 +/- 0.02. It is hypothesized that this decrease in drag over a narrow band of Sg values is due to a rapid damping of coning motions (precession and nutation). Observation of this drag decrease at a consistent value of Sg demonstrates the relati...

Courtney, Elya R

2013-01-01T23:59:59.000Z

107

Quantum stabilizer codes and beyond  

E-Print Network [OSTI]

The importance of quantum error correction in paving the way to build a practical quantum computer is no longer in doubt. This dissertation makes a threefold contribution to the mathematical theory of quantum error-correcting codes. Firstly, it extends the framework of an important class of quantum codes -- nonbinary stabilizer codes. It clarifies the connections of stabilizer codes to classical codes over quadratic extension fields, provides many new constructions of quantum codes, and develops further the theory of optimal quantum codes and punctured quantum codes. Secondly, it contributes to the theory of operator quantum error correcting codes also called as subsystem codes. These codes are expected to have efficient error recovery schemes than stabilizer codes. This dissertation develops a framework for study and analysis of subsystem codes using character theoretic methods. In particular, this work establishes a close link between subsystem codes and classical codes showing that the subsystem codes can be constructed from arbitrary classical codes. Thirdly, it seeks to exploit the knowledge of noise to design efficient quantum codes and considers more realistic channels than the commonly studied depolarizing channel. It gives systematic constructions of asymmetric quantum stabilizer codes that exploit the asymmetry of errors in certain quantum channels.

Pradeep Kiran Sarvepalli

2008-10-14T23:59:59.000Z

108

Landfill stabilization focus area: Technology summary  

SciTech Connect (OSTI)

Landfills within the DOE Complex as of 1990 are estimated to contain 3 million cubic meters of buried waste. The DOE facilities where the waste is predominantly located are at Hanford, the Savannah River Site (SRS), the Idaho National Engineering Laboratory (INEL), the Los Alamos National Laboratory (LANL), the Oak Ridge Reservation (ORR), the Nevada Test Site (NTS), and the Rocky Flats Plant (RFP). Landfills include buried waste, whether on pads or in trenches, sumps, ponds, pits, cribs, heaps and piles, auger holes, caissons, and sanitary landfills. Approximately half of all DOE buried waste was disposed of before 1970. Disposal regulations at that time permitted the commingling of various types of waste (i.e., transuranic, low-level radioactive, hazardous). As a result, much of the buried waste throughout the DOE Complex is presently believed to be contaminated with both hazardous and radioactive materials. DOE buried waste typically includes transuranic-contaminated radioactive waste (TRU), low-level radioactive waste (LLW), hazardous waste per 40 CFR 26 1, greater-than-class-C waste per CFR 61 55 (GTCC), mixed TRU waste, and mixed LLW. The mission of the Landfill Stabilization Focus Area is to develop, demonstrate, and deliver safer,more cost-effective and efficient technologies which satisfy DOE site needs for the remediation and management of landfills. The LSFA is structured into five technology areas to meet the landfill remediation and management needs across the DOE complex. These technology areas are: assessment, retrieval, treatment, containment, and stabilization. Technical tasks in each of these areas are reviewed.

NONE

1995-06-01T23:59:59.000Z

109

Factors influencing antioxidant phytochemical stability of teas  

E-Print Network [OSTI]

polyphenolic profile of teas. To present fundamental information of phytochemical stability during tea storage, studies to determine the impacts of tea processing, different packaging materials, and various storage conditions on the phytochemical stability were...

Kim, Youngmok

2009-05-15T23:59:59.000Z

110

Integrated Environmental Assessment Part III: Exposure Assessment  

E-Print Network [OSTI]

issues such as life cycle assessment (LCA) fosters the needlife-cycle impact assessment (LCIA) process within in LCA is

McKone, Thomas E.; Small, Mitchell J.

2006-01-01T23:59:59.000Z

111

Soil Stabilization Methods with Potential for Application at the Nevada National Security Site: A Literature Review  

SciTech Connect (OSTI)

Nuclear testing at the Nevada National Security Site (NNSS) has resulted in large areas of surficial radionuclide-contaminated soils. Much of the radionuclide contamination is found at or near the soil surface, and due to the dry climate setting, and the long half-life of radioactive isotopes, soil erosion poses a long-term health risk at the NNSS. The objective of this literature review is to present a survey of current stabilization methods used for minimizing soil erosion, both by water and wind. The review focuses on in situ uses of fundamental chemical and physical mechanisms for soil stabilization. A basic overview of the physical and chemical properties of soil is also presented to provide a basis for assessing stabilization methods. Some criteria for stabilization evaluation are identified based on previous studies at the NNSS. Although no specific recommendations are presented as no stabilization method, alone or in combination, will be appropriate in all circumstances, discussions of past and current stabilization procedures and specific soil tests that may aid in current or future soil stabilization activities at the NNSS are presented. However, not all Soils Corrective Action Sites (CASs) or Corrective Action Units (CAUs) will require stabilization of surficial radionuclide-contaminated soils. Each Soils CAS or CAU should be evaluated for site-specific conditions to determine if soil stabilization is necessary or practical for a given specific site closure alternative. If stabilization is necessary, then a determination will be made as to which stabilization technique is the most appropriate for that specific site.

Shillito, Rose [DRI] [DRI; Fenstermaker, Lynn [DRI] [DRI

2014-01-01T23:59:59.000Z

112

Simultaneous stabilization, avoidance and Goldberg's constants  

E-Print Network [OSTI]

was related to stabilizing the system which consists of a steam engine controlled by the governor. Several

Eremenko, Alexandre

113

Stabilization of Platinum Nanoparticle Electrocatalysts for Oxygen...  

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

Platinum Nanoparticle Electrocatalysts for Oxygen Reduction Using Poly(diallyldimethylammonium chloride). Stabilization of Platinum Nanoparticle Electrocatalysts for Oxygen...

114

Modeling of shallow stabilization ponds  

SciTech Connect (OSTI)

A two-dimensional hydrodynamic model is used to simulate shallow stabilization ponds. The model computes the flow field and the concentration distribution of a conservative tracer in the entire area of a pond. The location and the size of the dead zones, the bypassing, and the recirculating areas are also determined by the model. The numerical results are in good agreement with the experimental data obtained in the laboratory.

Babarutsi, S.; Marchand, P.; Safieddine, T.

1999-07-01T23:59:59.000Z

115

Structure stability and spectroscopy of metal clusters  

SciTech Connect (OSTI)

Theory based on self-consistent field-linear combinations of atomic orbitals-molecular orbital theory was applied to clusters. Four areas were covered: electronic structure, equilibrium geometries, and stability of charged clusters, interaction of metal clusters with H and halogen atoms, thermal stability of isolated clusters, and stability and optical properties of hetero-atomic clusters. (DLC)

Not Available

1993-01-01T23:59:59.000Z

116

Trading Away Financial Stability in Colombia  

E-Print Network [OSTI]

Trading Away Financial Stability in Colombia: Capital Controls and the US-Colombia Trade Agreement@bu.edu #12;Trading Away Financial Stability in Colombia: Capital Controls and the US-Colombia Trade Agreement SerieBrief # 66 | Abril 2011 Trading Away Financial Stability in Colombia: Capital Controls and the US-Colombia

Tufts University

117

Nonbinary Codeword Stabilized Quantum Codes  

E-Print Network [OSTI]

The codeword stabilized (CWS) quantum codes formalism presents a unifying approach to both additive and nonadditive quantum error-correcting codes (arXiv:0708.1021 [quant-ph]), but only for binary states. Here we generalize the CWS framework to the nonbinary case (of both prime and nonprime dimension) and map the search for nonbinary quantum codes to a corresponding search problem for classical nonbinary codes with specific error patterns. We show that while the additivity properties of nonbinary CWS codes are similar to the binary case, the structural properties of the nonbinary codes differ substantially from the binary case, even for prime dimensions. In particular, we identify specific structure patterns of stabilizer groups, based on which efficient constructions might be possible for codes that encode more dimensions than any stabilizer codes of the same length and distance; similar methods cannot be applied in the binary case. Understanding of these structural properties can help prune the search space and facilitate the identification of good nonbinary CWS codes.

Xie Chen; Bei Zeng; Isaac L. Chuang

2008-08-22T23:59:59.000Z

118

Power System Transient Stability Analysis through a Homotopy Analysis Method  

SciTech Connect (OSTI)

As an important function of energy management systems (EMSs), online contingency analysis plays an important role in providing power system security warnings of instability. At present, N-1 contingency analysis still relies on time-consuming numerical integration. To save computational cost, the paper proposes a quasi-analytical method to evaluate transient stability through time domain periodic solutions’ frequency sensitivities against initial values. First, dynamic systems described in classical models are modified into damping free systems whose solutions are either periodic or expanded (non-convergent). Second, because the sensitivities experience sharp changes when periodic solutions vanish and turn into expanded solutions, transient stability is assessed using the sensitivity. Third, homotopy analysis is introduced to extract frequency information and evaluate the sensitivities only from initial values so that time consuming numerical integration is avoided. Finally, a simple case is presented to demonstrate application of the proposed method, and simulation results show that the proposed method is promising.

Wang, Shaobu; Du, Pengwei; Zhou, Ning

2014-04-01T23:59:59.000Z

119

Bounds on Effective Hamiltonians for Stabilizer Codes  

E-Print Network [OSTI]

This manuscript introduces various notions of k-locality of stabilizer codes inherited from the associated stabilizer groups. A choice of generators for the group leads to a Hamiltonian with the code in its groundspace, while a Hamiltonian holding the code in its groundspace might be called effective if its locality is less than that of a natural choice of generators (or any choice). This paper establishes some conditions under which effective Hamiltonians for stabilizer codes do not exist. Our results simplify in the cases of Calderbank-Shor-Steane stabilizer codes and topologically-ordered stabilizer codes arising from surface cellulations.

Stephen S. Bullock; Dianne P. O'Leary

2008-02-05T23:59:59.000Z

120

Financial Assessment  

E-Print Network [OSTI]

We would like to thank everyone who helped us with this report, including but not limited to: John Bolduc, Steve Lenkauskas, George Fernandes, and the staff at the City of Cambridge and Danehy Park who helped shape this report and made on-site instrument installation and data collection possible. Mark Lipson, Jack Clarke and Jean Rogers for their guidance with the environmental and community impact assessment. Bob Paine and Scott Abbett for their thoughts and experiences with the Medford McGlynn School wind turbine. This preliminary assessment report investigates the wind resource available at Danehy Park in the City of Cambridge, providing estimated power generation figures as well as cost and revenue estimates and

Cy Chan; Pamela Silva; Chao Zhang

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "measurement-based stability assessment" 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

Stability of Graphene doping with MoO_3 and I_2  

E-Print Network [OSTI]

We dope graphene by evaporation of MoO_3 or by solution-deposition of I_2 and assess the doping stability for its use as transparent electrodes. Electrical measurements show that both dopants increase the graphene sheet conductivity and find that Mo...

D’Arsié, Lorenzo; Esconjauregui, Santiago; Weatherup, Robert; Guo, Yuzheng; Bhardwaj, Sunil; Centeno, Alba; Zurutuza, Amaia; Cepek, Cinzia; Robertson, John

2014-09-08T23:59:59.000Z

122

Operational control of boiling water reactor stability  

SciTech Connect (OSTI)

Boiling water reactor cores are susceptible to instabilities, which generate power oscillations. Specific reactor operating practices can provide a mechanism for control of the instability phenomenon. An axial separation of the core into a single-phase region and a two-phase region resolves the influence of axial flux shapes on core stability. This separation provides the means to derive a core stability control that ensures significant reactor stability margin. The control is achieved by maintaining the core average bulk coolant saturation elevation above a predetermined axial plane. The control can be reliably and efficiently implemented during reactor operations. Analysis demonstrates that variations in parameters important to stability have only secondary influences on stability margin when the control is in effect. Actual plant experience with a large commercial boiling water reactor confirms the capabilities of this stability control in an operational setting.

Mowry, C.M. [PECO Energy, Wayne, PA (United States); Nir, I. [Entergy Operations, Jackson, MS (United States); Newkirk, D.W. [GE Nuclear Energy, San Jose, CA (United States)

1995-03-01T23:59:59.000Z

123

Codeword stabilized quantum codes on subsystems  

E-Print Network [OSTI]

Codeword stabilized quantum codes provide a unified approach to constructing quantum error-correcting codes, including both additive and non-additive quantum codes. Standard codeword stabilized quantum codes encode quantum information into subspaces. The more general notion of encoding quantum information into a subsystem is known as an operator (or subsystem) quantum error correcting code. Most operator codes studied to date are based in the usual stabilizer formalism. We introduce operator quantum codes based on the codeword stabilized quantum code framework. Based on the necessary and sufficient conditions for operator quantum error correction, we derive a error correction condition for operator codeword stabilized quantum codes. Based on this condition, the word operators of a operator codeword stabilized quantum code are constructed from a set of classical binary errors induced by generators of the gauge group. We use this scheme to construct examples of both additive and non-additive codes that encode quantum information into a subsystem.

Jeonghwan Shin; Jun Heo; Todd A. Brun

2012-08-29T23:59:59.000Z

124

Structural stability of the Weeks Island oil repository  

SciTech Connect (OSTI)

A 3-D finite element analysis was performed to evaluate the stability of the SPR upper and lower oil storage levels at Weeks Island. The mechanical analysis predicted stresses and strains from which pillar stability was inferred using a fracture criterion developed from previous testing of Weeks Island salt. This analysis simulated the sequential mining of the two levels and subsequent oil fill of the mine. The predicted subsidence rates compare well to those measured over the past few years. Predicted failure mechanisms agree with observations made at the time the mine was being modified for oil storage. The modeling technique employed here treats an infinite array of pillars and is a reasonable representation of the behavior at the center of the mine. This analysis predicts that the lower level pillars, at the center of the mine, have fractured and their stability at this time is questionable. Localized pillar fracturing is predicted and implies that the mine is entering a phase of continual time dependent deterioration. Continued and expanded monitoring of the facility and development of methods to assess and predict its behavior are more important now than ever.

Preece, D.S.; Ehgartner, B.L.

1994-06-01T23:59:59.000Z

125

Stabilization of polyaniline solutions through additives  

DOE Patents [OSTI]

A stabilized non-conductive polyaniline solution comprising from about 1 to about 10 percent by weight polyaniline or a polyaniline derivative, from about 90 to about 99 percent by weight N-methylpyrrolidone, and from about 0.5 percent by weight to about 15 percent by weight of a solution stabilizing additive selected from the group consisting of hindered amine light stabilizers, polymeric amines, and dialkylamines, percent by weight of additive based on the total weight of polyaniline or polyaniline derivative is provided together with a method for stabilizing a polyaniline solution. 4 figs.

Wrobleski, D.A.; Benicewicz, B.C.

1996-12-10T23:59:59.000Z

126

Stabilization of polyaniline solutions through additives  

DOE Patents [OSTI]

A stabilized non-conductive polyaniline solution comprising from about 1 to bout 10 percent by weight polyaniline or a polyaniline derivative, from about 90 to about 99 percent by weight N-methylpyrrolidone, and from about 0.5 percent by weight to about 15 percent by weight of a solution stabilizing additive selected from the group consisting of hindered amine light stabilizers, polymeric amines, and dialkylamines, percent by weight of additive based on the total weight of polyaniline or polyaniline derivative is provided together with a method for stabilizing a polyaniline solution.

Wrobleski, Debra A. (Los Alamos, NM); Benicewicz, Brian C. (Los Alamos, NM)

1996-01-01T23:59:59.000Z

127

Singular Limits in Polymer Stabilized Liquid Crystals  

E-Print Network [OSTI]

We investigate equilibrium configurations for a polymer stabilized liquid crys- tal material ... eling the cross section of the liquid crystal-polymer fiber composite.

1910-31-00T23:59:59.000Z

128

Stabilization of Electrocatalytic Metal Nanoparticles at Metal...  

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

Electrocatalytic Metal Nanoparticles at Metal-Metal Oxide-Graphene Triple Junction Points. Stabilization of Electrocatalytic Metal Nanoparticles at Metal-Metal Oxide-Graphene...

129

HOLOMORPHIC MOTIONS AND STRUCTURAL STABILITY FOR ...  

E-Print Network [OSTI]

namics in one variable, we prove the structural stability of hyperbolic polynomial automor- phisms in ..... This extension is characterized by a harmonic Beltrami.

1910-70-80T23:59:59.000Z

130

Chemically stabilized ionomers containing inorganic fillers  

DOE Patents [OSTI]

Ionomeric polymers that are chemically stabilized and contain inorganic fillers are prepared, and show reduced degradation. The ionomers care useful in membranes and electrochemical cells.

Roelofs, Mark Gerrit

2013-12-31T23:59:59.000Z

131

On the Dynamic Stability of Electricity Markets  

E-Print Network [OSTI]

issues affecting market stability. In particular, we establish a control-theoretical frame- work that uses concepts arising in electricity markets, dynamic games, and

2011-02-09T23:59:59.000Z

132

Stabilizing control design of a motorcycle.  

E-Print Network [OSTI]

??This thesis solves the stabilizing control of an autonomous motorcycle. The control of an autonomous motorcycle is a challenging and interesting problem in the field… (more)

Yuan, F

2007-01-01T23:59:59.000Z

133

Flibe assessments.  

SciTech Connect (OSTI)

An assessment of the issues on using flibe for fusion applications has been made. It is concluded that sufficient tritium breeding can be achieved for a flibe blanket, especially if a few cm of Be is include in the blanket design. A key issue is the control of the transmutation products such as TF and F{sub 2}. A REDOX (Reducing-Oxidation) reaction has to be demonstrated which is compatible to the blanket design. Also, MHD may have strong impact on heat transfer if the flow is perpendicular to the magnetic field. The issues associated with the REDOX reaction and the MHD issues have to be resolved by both experimental program and numerical solutions.

Sze, D. K.; McCarthy, K.; Sawan, M.; Tillack, M.; Ying, A.; Zinkle, S.

2000-11-15T23:59:59.000Z

134

Surface rheology and interface stability.  

SciTech Connect (OSTI)

We have developed a mature laboratory at Sandia to measure interfacial rheology, using a combination of home-built, commercially available, and customized commercial tools. An Interfacial Shear Rheometer (KSV ISR-400) was modified and the software improved to increase sensitivity and reliability. Another shear rheometer, a TA Instruments AR-G2, was equipped with a du Nouey ring, bicone geometry, and a double wall ring. These interfacial attachments were compared to each other and to the ISR. The best results with the AR-G2 were obtained with the du Nouey ring. A Micro-Interfacial Rheometer (MIR) was developed in house to obtain the much higher sensitivity given by a smaller probe. However, it was found to be difficult to apply this technique for highly elastic surfaces. Interfaces also exhibit dilatational rheology when the interface changes area, such as occurs when bubbles grow or shrink. To measure this rheological response we developed a Surface Dilatational Rheometer (SDR), in which changes in surface tension with surface area are measured during the oscillation of the volume of a pendant drop or bubble. All instruments were tested with various surfactant solutions to determine the limitations of each. In addition, foaming capability and foam stability were tested and compared with the rheology data. It was found that there was no clear correlation of surface rheology with foaming/defoaming with different types of surfactants, but, within a family of surfactants, rheology could predict the foam stability. Diffusion of surfactants to the interface and the behavior of polyelectrolytes were two subjects studied with the new equipment. Finally, surface rheological terms were added to a finite element Navier-Stokes solver and preliminary testing of the code completed. Recommendations for improved implementation were given. When completed we plan to use the computations to better interpret the experimental data and account for the effects of the underlying bulk fluid.

Yaklin, Melissa A.; Cote, Raymond O.; Moffat, Harry K.; Grillet, Anne Mary; Walker, Lynn; Koehler, Timothy P.; Reichert, Matthew D. (Carnegie Mellon University, Pittsburgh, PA); Castaneda, Jaime N.; Mondy, Lisa Ann; Brooks, Carlton, F.

2010-11-01T23:59:59.000Z

135

Assessor Training Assessment Techniques  

E-Print Network [OSTI]

NVLAP Assessor Training Assessment Techniques: Communication Skills and Conducting an Assessment listener ·Knowledgeable Assessor Training 2009: Assessment Techniques: Communication Skills & Conducting, truthful, sincere, discrete · Diplomatic · Decisive · Selfreliant Assessor Training 2009: Assessment

136

Assessment 101: The Assessment Cycle, Clear and  

E-Print Network [OSTI]

Assessment 101: The Assessment Cycle, Clear and Simple October 1, 2014 Kellogg West Conference Center, Pomona, CA Resource Binder #12;2014-2015 WASC Senior College and University Commission is pleased expectations. Assessment 101: The Assessment Cycle, Clear and Simple October 1, 2014. Kellogg West, Pomona, CA

Su, Xiao

137

Improved Simulation of Stabilizer Circuits Scott Aaronson #  

E-Print Network [OSTI]

Improved Simulation of Stabilizer Circuits Scott Aaronson # University of California, Berkeley---that is, a quantum circuit con­ sisting solely of CNOT, Hadamard, and phase gates---can be simulated e that stabilizer circuits are probably not even universal for classical computation. Third, we give e

Aaronson, Scott

138

Stability design of long precast concrete beams  

E-Print Network [OSTI]

Stability design of long precast concrete beams T. J. Stratford, BA, MEng, C. J. Burgoyne BA, MSc needed for design engineers to check the stability of precast concrete beams when simply supported loads can be determined and how estimates can be made of the eect of imperfections both in the beam

Burgoyne, Chris

139

Stabilization of Mechanical Systems Using Controlled Lagrangians  

E-Print Network [OSTI]

of an inverted pendulum on a cart and for the problem of stabilization of rotation of a rigid spacecraft about grant DMS--91--57556, AFOSR grant F49620­96­1­ 0100, a GuggenheimFellowship and the Inst. for Advanced. cally provide a Lyapunov function for choosing control gains and proving closed­loop stability. Further

Leonard, Naomi

140

Laser stabilization using spectral hole burning  

E-Print Network [OSTI]

We have frequency stabilized a Coherent CR699-21 dye laser to a transient spectral hole on the 606 nm transition in Pr^{+3}:Y_2SiO_5. A frequency stability of 1 kHz has been obtained on the 10 microsecond timescale together with a long-term frequency drift below 1 kHz/s. RF magnetic fields are used to repopulate the hyperfine levels allowing us to control the dynamics of the spectral hole. A detailed theory of the atomic response to laser frequency errors has been developed which allows us to design and optimize the laser stabilization feedback loop, and specifically we give a stability criterion that must be fulfilled in order to obtain very low drift rates. The laser stability is sufficient for performing quantum gate experiments in Pr^{+3}:Y_2SiO_5.

L. Rippe; B. Julsgaard; A. Walther; S. Kröll

2006-11-05T23:59:59.000Z

Note: This page contains sample records for the topic "measurement-based stability assessment" 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

Entanglement-assisted codeword stabilized quantum codes  

SciTech Connect (OSTI)

Entangled qubits can increase the capacity of quantum error-correcting codes based on stabilizer codes. In addition, by using entanglement quantum stabilizer codes can be construct from classical linear codes that do not satisfy the dual-containing constraint. We show that it is possible to construct both additive and nonadditive quantum codes using the codeword stabilized quantum code framework. Nonadditive codes may offer improved performance over the more common stabilizer codes. Like other entanglement-assisted codes, the encoding procedure acts only on the qubits on Alice's side, and only these qubits are assumed to pass through the channel. However, errors in the codeword stabilized quantum code framework give rise to effective Z errors on Bob's side. We use this scheme to construct entanglement-assisted nonadditive quantum codes, in particular, ((5,16,2;1)) and ((7,4,5;4)) codes.

Shin, Jeonghwan; Heo, Jun; Brun, Todd A. [School of Electrical Engineering, Korea University, Seoul (Korea, Republic of); Communication Sciences Institute, University of Southern California, Los Angeles, California 90089 (United States)

2011-12-15T23:59:59.000Z

142

Thermal Stability Of Formohydroxamic Acid  

SciTech Connect (OSTI)

The thermal stability of formohydroxamic acid (FHA) was evaluated to address the potential for exothermic decomposition during storage and its use in the uranium extraction process. Accelerating rate calorimetry showed rapid decomposition at a temperature above 65 {degree}?C; although, the rate of pressure rise was greater than two orders of magnitude less than the lower bound for materials which have no explosive properties with respect to transportation. FHA solutions in water and nitric acid did not reach runaway conditions until 150 {degree}?C. Analysis by differential scanning calorimetry showed that FHA melted at 67 {degree}?C and thermally decomposed at 90 {degree}?C with an enthalpy of -1924 J/g. The energics of the FHA thermal decomposition are comparable to those measured for aqueous solutions of hydroxylamine nitrate. Solid FHA should be stored in a location where the temperature does not exceed 20-25 {degree}?C. As a best practice, the solid material should be stored in a climate-controlled environment such as a refrigerator or freezer. FHA solutions in water are not susceptible to degradation by acid hydrolysis and are the preferred way to handle FHA prior to use.

Fondeur, F. F.; Rudisill, T. S.

2011-10-21T23:59:59.000Z

143

Pipe crawler with stabilizing midsection  

DOE Patents [OSTI]

A pipe crawler is described having a midsection that provides the stability and flexibility to allow the pipe crawler to negotiate curved and uneven segments of piping while traveling through piping systems. The pipe crawler comprises a front leg assembly, a rear leg assembly, a midsection with a gimbal at each end for connecting the midsection to the front and rear leg assemblies in a flexible manner, and an air cylinder for changing the distance between the front and rear leg assemblies. The pipe crawler moves in ''inch worm'' fashion with the front and rear leg assemblies alternating between an extended and a retracted position as the air cylinder moves the retracted leg assembly forward. The midsection has a plurality of legs extending radially for holding the midsection within a maximum displacement from the piping axis so that the gimbals are not pivoted to extreme angles where they might lock up or seize. When the midsection is displaced sufficiently, its legs with wheels on each end engage the interior surface of the piping and prevent further displacement. Using two gimbals divides the angle between the planes defined by the front and rear leg assemblies which also helps to prevent excessive gimbal pivoting. 5 figures.

Zollinger, W.T.; Treanor, R.C.

1994-12-27T23:59:59.000Z

144

Pipe crawler with stabilizing midsection  

DOE Patents [OSTI]

A pipe crawler having a midsection that provides the stability and flexibty to allow the pipe crawler to negotiate curved and uneven segments of piping while traveling through piping systems. The pipe crawler comprises a front leg assembly, a rear leg assembly, a midsection with a gimbal at each end for connecting the midsection to the front and rear leg assemblies in a flexible manner, and an air cylinder for changing the distance between the front and rear leg assemblies. The pipe crawler moves in "inch worm" fashion with the front and rear leg assemblies alternating between an extended and a retracted position as the air cylinder moves the retracted leg assembly forward. The midsection has a plurality of legs extending radially for holding the midsection within a maximum displacement from the piping axis so that the gimbals are not pivoted to extreme angles where they might lock up or seize. When the midsection is displaced sufficiently, its legs with wheels on each end engage the interior surface of the piping and prevent further displacement. Using two gimbals divides the angle between the planes defined by the front and rear leg assemblies which also helps to prevent excessive gimbal pivoting.

Zollinger, William T. (Martinez, GA); Treanor, Richard C. (Augusta, GA)

1994-01-01T23:59:59.000Z

145

Structural stability of cooling flows  

E-Print Network [OSTI]

Three-dimensional hydrodynamical simulations are used to investigate the structural stability of cooling flows that are episodically heated by jets from a central AGN. The radial profile of energy deposition is controlled by (a) the power of the jets, and (b) the pre-outburst density profile. A delay in the ignition of the jets causes more powerful jets to impact on a more centrally concentrated medium. The net effect is a sufficient increase in the central concentration of energy deposition to cause the post-outburst density profile to be less centrally concentrated than that of an identical cluster in which the outburst happened earlier and was weaker. These results suggest that the density profiles of cooling flows oscillate around an attracting profile, thus explaining why cooling flows are observed to have similar density profiles. The possibility is raised that powerful FR II systems are ones in which this feedback mechanism has broken down and a runaway growth of the source parameters has occurred.

Henrik Omma; James Binney

2003-12-31T23:59:59.000Z

146

Process for stabilization of coal liquid fractions  

DOE Patents [OSTI]

Coal liquid fractions to be used as fuels are stabilized against gum formation and viscosity increases during storage, permitting the fuel to be burned as is, without further expensive treatments to remove gums or gum-forming materials. Stabilization is accomplished by addition of cyclohexanol or other simple inexpensive secondary and tertiary alcohols, secondary and tertiary amines, and ketones to such coal liquids at levels of 5-25% by weight with respect to the coal liquid being treated. Cyclohexanol is a particularly effective and cost-efficient stabilizer. Other stabilizers are isopropanol, diphenylmethanol, tertiary butanol, dipropylamine, triethylamine, diphenylamine, ethylmethylketone, cyclohexanone, methylphenylketone, and benzophenone. Experimental data indicate that stabilization is achieved by breaking hydrogen bonds between phenols in the coal liquid, thereby preventing or retarding oxidative coupling. In addition, it has been found that coal liquid fractions stabilized according to the invention can be mixed with petroleum-derived liquid fuels to produce mixtures in which gum deposition is prevented or reduced relative to similar mixtures not containing stabilizer.

Davies, Geoffrey (Boston, MA); El-Toukhy, Ahmed (Alexandria, EG)

1987-01-01T23:59:59.000Z

147

Long life lithium batteries with stabilized electrodes  

DOE Patents [OSTI]

The present invention relates to non-aqueous electrolytes having electrode stabilizing additives, stabilized electrodes, and electrochemical devices containing the same. Thus the present invention provides electrolytes containing an alkali metal salt, a polar aprotic solvent, and an electrode stabilizing additive. In some embodiments the additives include a substituted or unsubstituted cyclic or spirocyclic hydrocarbon containing at least one oxygen atom and at least one alkenyl or alkynyl group. When used in electrochemical devices with, e.g., lithium manganese oxide spinel electrodes or olivine or carbon-coated olivine electrodes, the new electrolytes provide batteries with improved calendar and cycle life.

Amine, Khalil (Downers Grove, IL); Liu, Jun (Naperville, IL); Vissers, Donald R. (Naperville, IL); Lu, Wenquan (Darien, IL)

2009-03-24T23:59:59.000Z

148

Novel Compounds for Enhancing Electrolyte Stability and Safety...  

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

Compounds for Enhancing Electrolyte Stability and Safety of Lithium-ion Cells Novel Compounds for Enhancing Electrolyte Stability and Safety of Lithium-ion Cells 2010 DOE Vehicle...

149

Molecular Structure and Stability of Dissolved Lithium Polysulfide...  

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

Stability of Dissolved Lithium Polysulfide Species. Molecular Structure and Stability of Dissolved Lithium Polysulfide Species. Abstract: Ability to predict the solubility and...

150

Surface and Structural Stabilities of Carbon Additives in High...  

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

Structural Stabilities of Carbon Additives in High Voltage Lithium Ion Batteries. Surface and Structural Stabilities of Carbon Additives in High Voltage Lithium Ion Batteries....

151

Grain growth and phase stability of nanocrystalline cubic zirconia...  

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

of nanocrystalline cubic zirconia under ion irradiation. Abstract: Grain growth, oxygen stoichiometry and phase stability of nanostructurally-stabilized zirconia (NSZ) in...

152

attitude stability system: Topics by E-print Network  

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

such as Gravity Gradient stabilization, (more) Rawashdeh, Samir Ahmed 2010-01-01 3 Design of Attitude Stability System for Prolate Dual-spin Satellite in Its Inclined...

153

Towards Understanding the Poor Thermal Stability of V5+ Electrolyte...  

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

the Poor Thermal Stability of V5+ Electrolyte Solution in Vanadium Redox Flow Batteries. Towards Understanding the Poor Thermal Stability of V5+ Electrolyte Solution in...

154

Enhanced Activity and Stability of Pt catalysts on Functionalized...  

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

Enhanced Activity and Stability of Pt catalysts on Functionalized Graphene Sheets for Electrocatalytic Oxygen Reduction . Enhanced Activity and Stability of Pt catalysts on...

155

Stability Of Nanoclusters In 14YWT Oxide Dispersion Strengthened...  

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

Stability Of Nanoclusters In 14YWT Oxide Dispersion Strengthened Steel Under Heavy Ion-irradiation By Atom Probe Tomography. Stability Of Nanoclusters In 14YWT Oxide Dispersion...

156

Scale-Up of Magnesium Production by Fully Stabilized Zirconia...  

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

Scale-Up of Magnesium Production by Fully Stabilized Zirconia Electrolysis Scale-Up of Magnesium Production by Fully Stabilized Zirconia Electrolysis 2012 DOE Hydrogen and Fuel...

157

Density Functional Study of the Structure, Stability and Oxygen...  

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

Study of the Structure, Stability and Oxygen Reduction Activity of Ultrathin Platinum Nanowires. Density Functional Study of the Structure, Stability and Oxygen Reduction Activity...

158

Radiation Stability of Nanoclusters in Nano-structured Oxide...  

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

Stability of Nanoclusters in Nano-structured Oxide Dispersion Strengthened (ODS) Steels. Radiation Stability of Nanoclusters in Nano-structured Oxide Dispersion Strengthened (ODS)...

159

Quality, Stability, Performance, and Emission Impacts of Biodiesel...  

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

Quality, Stability, Performance, and Emission Impacts of Biodiesel Blends Quality, Stability, Performance, and Emission Impacts of Biodiesel Blends Presentation from the U.S. DOE...

160

Processes that influence biodiversity, ecosystem functioning, and stability in grasslands.  

E-Print Network [OSTI]

??Biodiversity is rapidly declining worldwide, and this may lead to subsequent declines in ecosystem functioning and stability. Here I consider whether: (i) stabilizing species interactions,… (more)

Isbell, Forest Isaac

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "measurement-based stability assessment" 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

Processes that influence biodiversity, ecosystem functioning, and stability in grasslands.  

E-Print Network [OSTI]

?? Biodiversity is rapidly declining worldwide, and this may lead to subsequent declines in ecosystem functioning and stability. Here I consider whether: (i) stabilizing species… (more)

Isbell, Forest Isaac

2010-01-01T23:59:59.000Z

162

Thermohaline circulation stability : a box model  

E-Print Network [OSTI]

A thorough analysis of the stability of uncoupled and coupled versions of an inter-hemispheric 3-box model of Thermohaline Circulation (THC) is presented. The model consists of a northern high latitudes box, a tropical ...

Lucarini, Valerio

2003-01-01T23:59:59.000Z

163

What does stabilizing greenhouse gas concentrations mean?  

E-Print Network [OSTI]

The MIT Emissions Prediction and Policy Analysis (EPPA) model is applied to an exploration of the national emissions obligations that would be required to stabilize atmospheric CO2 concentrations at levels now under active ...

Jacoby, Henry D.; Schmalensee, Richard.; Reiner, David M.

164

LED Color Stability: 10 Important Questions  

Broader source: Energy.gov [DOE]

This April 15, 2014 webinar examined the causes of color shift, and took a look at existing metrics used to describe color shift/color stability in LED lighting. The lumen maintenance lifetime of...

165

Entanglement-assisted codeword stabilized quantum codes  

E-Print Network [OSTI]

Entangled qubit can increase the capacity of quantum error correcting codes based on stabilizer codes. In addition, by using entanglement quantum stabilizer codes can be construct from classical linear codes that do not satisfy the dual-containing constraint. We show that it is possible to construct both additive and non-additive quantum codes using the codeword stabilized quantum code framework. Nonadditive codes may offer improved performance over the more common sta- bilizer codes. Like other entanglement-assisted codes, the encoding procedure acts only the qubits on Alice's side, and only these qubits are assumed to pass through the channel. However, errors the codeword stabilized quantum code framework gives rise to effective Z errors on Bob side. We use this scheme to construct new entanglement-assisted non-additive quantum codes, in particular, ((5,16,2;1)) and ((7,4,5;4)) codes.

Jeonghwan Shin; Jun Heo; Todd A. Brun

2011-09-15T23:59:59.000Z

166

Stability Index of Interaction forms Joseph Abdou  

E-Print Network [OSTI]

Stability Index of Interaction forms Joseph Abdou December 15, 2008 Abstract An interaction form, 106-112 boulevard de l'H^opital 75647 Paris Cedex 13 - France; email: abdou@univ-paris1.fr 1 halshs

Paris-Sud XI, Université de

167

Stabilizing windings for tilting and shifting modes  

DOE Patents [OSTI]

This invention relates to passive conducting loops for stabilizing a plasma ring against unstable tilting and/or shifting modes. To this end, for example, plasma ring in a spheromak is stabilized by a set of four figure-8 shaped loops having one pair on one side of the plasma and one pair on the other side with each pair comprising two loops whose axes are transverse to each other.

Jardin, Stephen C. (Princeton, NJ); Christensen, Uffe R. (Princeton, NJ)

1984-01-01T23:59:59.000Z

168

A model study of articulated mat stability  

E-Print Network [OSTI]

characteristics of. model articulated mat revetrrient svith respect to different revetmert slope con- ditions. In this experirrent three diFierent slope permeabilities were investigated by layering geotextile filter on the revetment frame. The stability... EXPERIMENTAL PROCEDURE 12 18 A. Geotextile filter B. Stability experiment V WAVE RUNUP 18 21 33 VI VII VIII WAVE RUNDOWN UPLIFTING FORCE SLIDE-UP FORCE 44 IX SLIDE-DOWN FORCE 77 SUMMARY AND CONCLUSION REFERENCES . APPENDIX A EXPERIMENTAL...

Sasaki, Tetsu

1990-01-01T23:59:59.000Z

169

Engineering report (conceptual design) PFP solution stabilization  

SciTech Connect (OSTI)

This Engineering Report (Conceptual Design) addresses remediation of the plutonium-bearing solutions currently in inventory at the Plutonium Finishing Plant (PFP). The recommendation from the Environmental Impact Statement (EIS) is that the solutions be treated thermally and stabilized as a solid for long term storage. For solutions which are not discardable, the baseline plan is to utilize a denitration process to stabilize the solutions prior to packaging for storage.

Witt, J.B.

1997-07-17T23:59:59.000Z

170

Electrostatic wire stabilizing a charged particle beam  

DOE Patents [OSTI]

In combination with a charged particle beam generator and accelerator, apparatus and method are provided for stabilizing a beam of electrically charged particles. A guiding means, disposed within the particle beam, has an electric charge induced upon it by the charged particle beam. Because the sign of the electric charge on the guiding means and the sign of the particle beam are opposite, the particles are attracted toward and cluster around the guiding means to thereby stabilize the particle beam as it travels.

Prono, D.S.; Caporaso, G.J.; Briggs, R.J.

1983-03-21T23:59:59.000Z

171

Stabilized fuel with silica support structure  

SciTech Connect (OSTI)

This report describes a stabilized fuel which is supported by a silica support structure. The silica support structure provides a low density, high porosity vehicle for safely carrying hydrocarbon fuels. The silica support structure for hydrocarbon fuel does not produce toxic material residues on combustion which would pose environmentally sensitive disposal problems. The silica stabilized fuel composition is useful as a low temperature, continuous burning fire starter for wood or charcoal.

Poco, J.F.; Hrubesh, L.W.

1991-12-31T23:59:59.000Z

172

Silicate stabilization studies in propylene glycol  

SciTech Connect (OSTI)

In most North American and many European coolant formulations, the corrosion inhibition of heat-rejecting aluminum surfaces is provided by alkali metal silicates. But, their tendency towards polymerization, leading to gelation and/or precipitation, can reduce the effectiveness of a coolant. This paper presents the results of experiments which illustrate formulation-dependent behavior of inorganic silicate in propylene glycol compositions. Specific examples of the effects of glycol matrix, stabilizer type, and hard water on silicate stabilization are provided.

Schwartz, S.A. [ARCO Chemical Co., Newtown Square, PA (United States)

1999-08-01T23:59:59.000Z

173

Sundman Stability of Natural Planet Satellites  

E-Print Network [OSTI]

The stability of the motion of the planet satellites is considered in the model of the general three-body problem (Sun-planet-satellite). "Sundman surfaces" are constructed, by means of which the concept "Sundman stability" is formulated. The comparison of the Sundman stability with the results of Golubev's c2h method and with the Hill's classical stability in the restricted three-body problem is performed. The constructed Sundman stability regions in the plane of the parameters "energy - moment of momentum" coincide with the analogous regions obtained by Golubev's method, with the value (c2h)cr. The construction of the Sundman surfaces in the three-dimensional space of the specially selected coordinates xyR is carried out by means of the exact Sundman inequality in the general three-body problem. The determination of the singular points of surfaces, the regions of the possible motion and Sundman stability analysis are implemented. It is shown that the singular points of the Sundman surfaces in the coordinate...

Lukyanov, L G

2012-01-01T23:59:59.000Z

174

ORISE: Hazard Assessments  

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

assesses both chemical and radiation exposures, and conducts both internal and external radiation dose assessments. Our capabililities include: Linkage of exposure data to site...

175

Privacy Impact Assessment  

Energy Savers [EERE]

PRIVACY IMPACT ASSESSMENT: ORG NAME - SYSTEM NAME PIA Template Version 3 - May, 2009 1 Department of Energy Privacy Impact Assessment (PIA) Guidance is provided in the template....

176

Crude oil and finished fuel storage stability: An annotated review  

SciTech Connect (OSTI)

A state-of-the-art review and assessment of storage effects on crude oil and product quality was undertaken through a literature search by computer accessing several data base sources. Pertinent citations from that literature search are tabulated for the years 1980 to the present. This 1990 revision supplements earlier reviews by Brinkman and others which covered stability publications through 1979 and an update in 1983 by Goetzinger and others that covered the period 1952--1982. For purposes of organization, citations are listed in the current revision chronologically starting with the earliest 1980 publications. The citations have also been divided according to primary subject matter. Consequently 11 sections appear including: alternate fuels, gasoline, distillate fuel, jet fuel, residual fuel, crude oil, biodegradation, analyses, reaction mechanisms, containment, and handling and storage. Each section contains a brief narrative followed by all the citations for that category.

Whisman, M.L.; Anderson, R.P.; Woodward, P.W.; Giles, H.N.

1991-01-01T23:59:59.000Z

177

High Performance Computing for Stability Problems - Applications to Hydrodynamic Stability and Neutron Transport Criticality.  

E-Print Network [OSTI]

??In this work we examine two kinds of applications in terms of stability and perform numerical evaluations and benchmarks on parallel platforms. We consider the… (more)

Subramanian, Chandramowli

2011-01-01T23:59:59.000Z

178

Portsmouth Needs Assessment  

Broader source: Energy.gov [DOE]

Needs Assessment for former Oak Ridge K-25, Paducah, and Portsmouth Gaseous Diffusion Plant production workers.

179

ASSESSMENT FOR THE SOUTHWEST  

E-Print Network [OSTI]

SERVICE CLIMATE CHANGE & CULTURAL RESOURCE PLANNING PROGRAM 17 EARTH SYSTEM MODELS 18 CLIMATE ASSESSMENTS

Wong, Pak Kin

180

Paducah Needs Assessment  

Broader source: Energy.gov [DOE]

Needs Assessment for former Oak Ridge K-25, Paducah, and Portsmouth Gaseous Diffusion Plant production workers.

Note: This page contains sample records for the topic "measurement-based stability assessment" 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

Extreme-Point Stability Tests for Discrete-Time Polynomials  

E-Print Network [OSTI]

TA9 -10:40 Extreme-Point Stability Tests for Discrete-Time Polynomials F. PCrez *, C been an increasinginterest in finding extreme- point results for the study of stability of uncertain in the coefficients space where Schur stability of the extremes im- plies the stability of the entire family 12). Our

182

Stability Study of the RERTR Fuel Microstructure  

SciTech Connect (OSTI)

The irradiation stability of the interaction phases at the interface of fuel and Al alloy matrix as well as the stability of the fission gas bubble superlattice is believed to be very important to the U-Mo fuel performance. In this paper the recent result from TEM characterization of Kr ion irradiated U-10Mo-5Zr alloy will be discussed. The focus will be on the phase stability of Mo2-Zr, a dominated second phase developed at the interface of U-10Mo and the Zr barrier in a monolithic fuel plate from fuel fabrication. The Kr ion irradiations were conducted at a temperature of 200 degrees C to an ion fluence of 2.0E+16 ions/cm2. To investigate the thermal stability of the fission gas bubble superlattice, a key microstructural feature in both irradiated dispersion U-7Mo fuel and monolithic U-10Mo fuel, a FIB-TEM sample of the irradiated U-10Mo fuel (3.53E+21 fission/cm3) was used for a TEM in-situ heating experiment. The preliminary result showed extraordinary thermal stability of the fission gas bubble superlattice. The implication of the TEM observation from these two experiments on the fuel microstructural evolution under irradiation will be discussed.

Jian Gan; Dennis Keiser; Brandon Miller; Daniel Wachs

2014-04-01T23:59:59.000Z

183

The (In)Stability of Planetary Systems  

E-Print Network [OSTI]

We present results of numerical simulations which examine the dynamical stability of known planetary systems, a star with two or more planets. First we vary the initial conditions of each system based on observational data. We then determine regions of phase space which produce stable planetary configurations. For each system we perform 1000 ~1 million year integrations. We examine upsilon And, HD83443, GJ876, HD82943, 47UMa, HD168443, and the solar system (SS). We find that the resonant systems, 2 planets in a first order mean motion resonance, (HD82943 and GJ876) have very narrow zones of stability. The interacting systems, not in first order resonance, but able to perturb each other (upsilon And, 47UMa, and SS) have broad regions of stability. The separated systems, 2 planets beyond 10:1 resonance, (we only examine HD83443 and HD168443) are fully stable. Furthermore we find that the best fits to the interacting and resonant systems place them very close to unstable regions. The boundary in phase space between stability and instability depends strongly on the eccentricities, and (if applicable) the proximity of the system to perfect resonance. In addition to million year integrations, we also examined stability on ~100 million year timescales. For each system we ran ~10 long term simulations, and find that the Keplerian fits to these systems all contain configurations which may be regular on this timescale.

Rory Barnes; Thomas Quinn

2004-01-09T23:59:59.000Z

184

Process for stabilizing the viscosity characteristics of coal derived materials and the stabilized materials obtained thereby  

DOE Patents [OSTI]

A process is disclosed for stabilizing the viscosity of coal derived materials such as an SRC product by adding up to 5.0% by weight of a light volatile phenolic viscosity repressor. The viscosity will remain stabilized for a period of time of up to 4 months.

Bronfenbrenner, James C. (Allentown, PA); Foster, Edward P. (Allentown, PA); Tewari, Krishna (Allentown, PA)

1985-01-01T23:59:59.000Z

185

Wind Power Plant Voltage Stability Evaluation: Preprint  

SciTech Connect (OSTI)

Voltage stability refers to the ability of a power system to maintain steady voltages at all buses in the system after being subjected to a disturbance from a given initial operating condition. Voltage stability depends on a power system's ability to maintain and/or restore equilibrium between load demand and supply. Instability that may result occurs in the form of a progressive fall or rise of voltages of some buses. Possible outcomes of voltage instability are the loss of load in an area or tripped transmission lines and other elements by their protective systems, which may lead to cascading outages. The loss of synchronism of some generators may result from these outages or from operating conditions that violate a synchronous generator's field current limit, or in the case of variable speed wind turbine generator, the current limits of power switches. This paper investigates the impact of wind power plants on power system voltage stability by using synchrophasor measurements.

Muljadi, E.; Zhang, Y. C.

2014-09-01T23:59:59.000Z

186

Radiation stability of biocompatibile magnetic fluid  

E-Print Network [OSTI]

The radiation stability of biocompatibile magnetic fluid used in nanomedicine after electron irradiation was studied. Two types of the water-based magnetic fluids were prepared. The first one was based on the magnetite nanoparticles stabilized by one surfactant natrium oleate. The second one was biocompatibile magnetic fluid stabilized with two surfactants, natrium oleate as a first surfactant and Poly(ethylene glycol) (PEG) as a second surfactant. The magnetization measurements showed that electron irradiation up to 1000Gy caused 50% reduction of saturation magnetization in the case of the first sample with only one surfactant while in the case of the second biocompatibile magnetic fluid, only 25% reduction of saturation magnetization was observed. In the first magnetic fluid the radiation caused the higher sedimentation of the magnetic particles than in the second case, when magnetic particles are covered also with PEG. The obtained results show that PEG behave as a protective element.

Natalia Tomasovicova; Ivan Haysak; Martina Koneracka; Jozef Kovac; Milan Timko; Vlasta Zavisova; Alexander Okunev; Alexander Parlag; Alexey Fradkin; Peter Kopcansky

2010-09-30T23:59:59.000Z

187

Vacuum (meta)stability beyond the MSSM  

SciTech Connect (OSTI)

We study the stability of the Higgs potential in the framework of the effective Lagrangian beyond the minimal supersymmetric standard model (MSSM). While the leading nonrenormalizable operators can shift the Higgs boson mass above the experimental bound, they also tend to render the scalar potential unbounded from below. The destabilization is correlated with the Higgs mass increase, so that if quantum corrections are small the problem is severe. We show that a supersymmetric subleading correction stabilizes the potential within the domain of validity of the effective theory. Constraints on MSSM parameters as well as on higher dimensional operators are derived, ensuring that our vacuum has a lifetime longer than the present age of the Universe. In addition we show that when effective operators are responsible for evading the LEP bound, stability constraints imply an upper bound on the scale of new physics in the few TeV range.

Blum, Kfir; Delaunay, Cedric; Hochberg, Yonit [Department of Particle Physics, Weizmann Institute of Science, Rehovot 76100 (Israel)

2009-10-01T23:59:59.000Z

188

In Situ Community Control of the Stability of Bioreduced Uranium  

SciTech Connect (OSTI)

In-well sediment incubators Direct estimation of reoxidation rates is difficult under field conditions. We have designed and are fabricating in-well sediment incubators for use in conducting a series of in situ experiments that will enable direct measurement of U(IV) removal rates from pre-reduced sediments with specific microbial and mineralogic amendments. By comparing U(IV) loss rates with different DIRB and SRB populations we will be able to clearly determine the relative impact of sulfate reducers vs. Fe reducers. The approach we propose also makes it possible to assess actual in situ conditions during the experiment and to directly observe reoxidation (or bioreduction) end points after the field experiment is completed without drilling. Finally, the production of in-well sediment incubators is relatively inexpensive and could ultimately become an alternative to field-scale electron donor amendment experiments as a means of assessing site response to bioremediation and long-term stability of both biostimulated and naturally bioattenuated sites.

White, David C.

2005-06-01T23:59:59.000Z

189

Distributed road assessment system  

DOE Patents [OSTI]

A system that detects damage on or below the surface of a paved structure or pavement is provided. A distributed road assessment system includes road assessment pods and a road assessment server. Each road assessment pod includes a ground-penetrating radar antenna array and a detection system that detects road damage from the return signals as the vehicle on which the pod is mounted travels down a road. Each road assessment pod transmits to the road assessment server occurrence information describing each occurrence of road damage that is newly detected on a current scan of a road. The road assessment server maintains a road damage database of occurrence information describing the previously detected occurrences of road damage. After the road assessment server receives occurrence information for newly detected occurrences of road damage for a portion of a road, the road assessment server determines which newly detected occurrences correspond to which previously detected occurrences of road damage.

Beer, N. Reginald; Paglieroni, David W

2014-03-25T23:59:59.000Z

190

Mercury stabilization in chemically bonded phosphate ceramics  

SciTech Connect (OSTI)

Mercury stabilization and solidification is a significant challenge for conventional stabilization technologies. This is because of the stringent regulatory limits on leaching of its stabilized products. In a conventional cement stabilization process, Hg is converted at high pH to its hydroxide, which is not a very insoluble compound; hence the preferred route for Hg sulfidation to convert it into insoluble cinnabar (HgS). Unfortunately, efficient formation of this compound is pH-dependent. At a high pH, one obtains a more soluble Hg sulfate, in a very low pH range, insufficient immobilization occurs because of the escape of hydrogen sulfide, while efficient formation of HgS occurs only in a moderately acidic region. Thus, the pH range of 4 to 8 is where stabilization with Chemically Bonded Phosphate Ceramics (CBPC) is carried out. This paper discusses the authors experience on bench-scale stabilization of various US Department of Energy (DOE) waste streams containing Hg in the CBPC process. This process was developed to treat DOE's mixed waste streams. It is a room-temperature-setting process based on an acid-base reaction between magnesium oxide and monopotassium phosphate solution that forms a dense ceramic within hours. For Hg stabilization, addition of a small amount (< 1 wt.%) of Na{sub 2}S or K{sub 2}S is sufficient in the binder composition. Here the Toxicity Characteristic Leaching Procedure (TCLP) results on CBPC waste forms of surrogate waste streams representing secondary Hg containing wastes such as combustion residues and Delphi DETOX{trademark} residues are presented. The results show that although the current limit on leaching of Hg is 0.2 mg/L, the results from the CBPC waste forms are at least one order lower than this stringent limit. Encouraged by these results on surrogate wastes, they treated actual low-level Hg-containing mixed waste from their facility at Idaho. TCLP results on this waste are presented here. The efficient stabilization in all these cases is attributed to chemical immobilization as both a sulfide (cinnabar) and a phosphate, followed by its physical encapsulation in a dense matrix of the ceramic.

Wagh, A. S.; Singh, D.; Jeong, S. Y.

2000-04-04T23:59:59.000Z

191

Runge-Kutta formulas of optimum stability  

E-Print Network [OSTI]

RUNGE-KUTTA FOK'IULAS OF OPTIMUM STABILITY A Thesis by HECTOR GONZALES SIERRA Submitted. to the Graduate College of Texas ASM University in partial fulfillment of the requirement for tno degree of MASTER OF SCIENCE May 196$ Major Subject... Mathematics RUNGE ? KUTTA 1'OR1'IULAS OP OPTI11U1, STABILITY A Thesis by RECTOR GONZALES SIERRA Approved as to style and content by: (Chairman of Committee 1ead of Departmen member Nay 1$6a ABSTRACT RAGE-KUTTA PORKJLAS OP OPTIKJN STAl3ILI1Y. (Nay I...

Sierra, Hector Gonzales

1969-01-01T23:59:59.000Z

192

Baby Skyrmions stabilized by vector mesons  

E-Print Network [OSTI]

Recent results suggest that multi-Skyrmions stabilized by omega mesons have very similar properties to those stabilized by the Skyrme term. In this paper we present the results of a detailed numerical investigation of a (2+1)-dimensional analogue of this situation. Namely, we compute solitons in an O(3) sigma-model coupled to a massive vector meson and compare the results to baby Skyrmions, which are solitons in an O(3) sigma-model including a Skyrme term. We find that multi-solitons in the vector meson model are surprisingly similar to those in the baby Skyrme model, and we explain this correspondence using a simple derivative expansion.

David Foster; Paul Sutcliffe

2009-01-23T23:59:59.000Z

193

Quantum Stabilizer Codes Embedding Qubits Into Qudits  

E-Print Network [OSTI]

We study, by means of the stabilizer formalism, a quantum error correcting code which is alternative to the standard block codes since it embeds a qubit into a qudit. The code exploits the non-commutative geometry of discrete phase space to protect the qubit against both amplitude and phase errors. The performance of such code is evaluated on Weyl channels by means of the entanglement fidelity as function of the error probability. A comparison with standard block codes, like five and seven qubit stabilizer codes, shows its superiority.

Carlo Cafaro; Federico Maiolini; Stefano Mancini

2012-07-30T23:59:59.000Z

194

Stability of Anisotropic Cylinder with Zero Expansion  

E-Print Network [OSTI]

We study the dynamical instability of anisotropic collapsing cylinder with the expansion-free condition, which generates vacuum cavity within fluid distribution. The perturbation scheme is applied to distinguish Newtonian, post-Newtonian and post-post Newtonian terms, which are used for constructing dynamical equation at Newtonian and post-Newtonian regimes. We analyze the role of pressure anisotropy and energy density inhomogeneity on the stability of collapsing cylinder. It turns out that stability of the cylinder depends upon these physical properties of the fluid, not on the stiffness of the fluid.

M. Sharif; M. Azam

2013-05-24T23:59:59.000Z

195

Area C borrow Site Habitat Assessment  

SciTech Connect (OSTI)

A habitat quality assessment was performed within selected portions of the proposed Area C Borrow Source. The previously identified Bitterbrush / Indian ricegrass stabilized dune element occurrence was determined to be better described as a sagebrush /needle-and-thread grass element occurrence of fair to good quality. A new habitat polygon is suggested adjacent to this element occurrence, which would also be sagebrush/needle-and-thread grass, but of poor quality. The proposed site of initial borrow site development was found to be a very low quality community dominated by cheatgrass.

Sackschewsky, Michael R.; Downs, Janelle L.

2009-12-04T23:59:59.000Z

196

The effect of convection on pulsational stability  

E-Print Network [OSTI]

A review on the current state of mode physics in classical pulsators is presented. Two, currently in use, time-dependent convection models are compared and their applications on mode stability are discussed with particular emphasis on the location of the Delta Scuti instability strip.

G. Houdek

2008-10-29T23:59:59.000Z

197

Amphiphiles for protein solubilization and stabilization  

DOE Patents [OSTI]

The invention provides amphiphiles for manipulating membrane proteins. The amphiphiles can feature carbohydrate-derived hydrophilic groups and branchpoints in the hydrophilic moiety and/or in a lipophilic moiety. Such amphiphiles are useful as detergents for solubilization and stabilization of membrane proteins, including photosynthetic protein superassemblies obtained from bacterial membranes.

Gellman, Samuel Helmer; Chae, Pil Seok; Laible, Philip D.; Wander, Marc J.

2012-09-11T23:59:59.000Z

198

PID Controller Synthesis with Specified Stability Requirement  

E-Print Network [OSTI]

PID Controller Synthesis with Specified Stability Requirement for Some Classes of MIMO Systems T. S+Integral+Derivative (PID) con- trollers, where the closed-loop poles can be assigned to the left of an axis shifted PID-controllers with this property of small negative real-part assignability of closed-loop poles

Gundes, A. N.

199

Amphiphiles for protein solubilization and stabilization  

DOE Patents [OSTI]

The invention provides amphiphiles for manipulating membrane proteins. The amphiphiles can feature carbohydrate-derived hydrophilic groups and branchpoints in the hydrophilic moiety and/or in a lipophilic moiety. Such amphiphiles are useful as detergents for solubilization and stabilization of membrane proteins, including photosynthetic protein superassemblies obtained from bacterial membranes.

Gellman, Samuel Helmer; Chae, Pil Seok; Laible, Phillip D; Wander, Marc J

2014-11-04T23:59:59.000Z

200

Stability of Nanostructures on Surfaces Karsten Pohl  

E-Print Network [OSTI]

catalytic materials, higher sensitivity chem- ical sensors, and perhaps, quantum computers. Well- ordered with stabilizing forces derived from long-range elastic interactions between the islands. BACKGROUND Many­13] more selective catalysis and higher-sensitivity chemical sensors,[14] and, perhaps, nano- scale

Pohl, Karsten

Note: This page contains sample records for the topic "measurement-based stability assessment" 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

LATERAL VEHICLE STABILIZATION USING CONSTRAINED NONLINEAR CONTROL  

E-Print Network [OSTI]

problems of designing a controller for the yaw dynamics are the nonlinearities which appear in the system, nonlinear systems, constraints. Abstract A lateral stabilization system for automotive vehicles is de of the vehicle during braking maneuvers. These systems were followed by traction control systems, which im- prove

Johansen, Tor Arne

202

UV STABILITY OF HIGH BIREFIRNGENCE LIQUID CRYSTALS  

E-Print Network [OSTI]

nm, the major UV light used for curing sealant. The material degradation is believed to originate experimental results indicate that the UV degradation not only depends on the absorption wavelength but alsoUV STABILITY OF HIGH BIREFIRNGENCE LIQUID CRYSTALS Pao-Tai Lin and Shin-Tson Wu School of Optics

Wu, Shin-Tson

203

Near-Neoclassical Transport & Enhanced Stability  

E-Print Network [OSTI]

magnetic shear configurations are particularly attractive for advanced tokamak reactors -- predicted and advanced tokamak physics Outline · Formation · Transport · MHD Stability · Future Directions TFTR #12;6 5 4 by Shaing and Hazeltine; Hinton and Kim modification of Hirshman-Sigmar equations · comparison with Full

204

ROCTECtm STABILIZATION TREATMENT OF WERF ASH  

SciTech Connect (OSTI)

The objective of this project is to demonstrate a process to stabilize mixed waste flyash generated by the combustion of mixed waste at the Idaho National Engineering & Environmental Laboratory's (INEEL's) Waste Experimental Reduction Facility (WERF) incinerator such that it will meet Resource Conservation and Recovery Act (RCRA) Land Disposal Restrictions (LDRs) Universal Treatment Standards.

Paul A. Lessing; William J. Quapp; Gary Renlund; Bob Clark; Colin Hundley; James Cornwell; Dave Schlier; John Bulko; Gene Pollack

1998-10-01T23:59:59.000Z

205

Lateral stability of long precast concrete beams  

E-Print Network [OSTI]

Lateral stability of long precast concrete beams T. J. Stratford, BA, BEng, and C. J. Burgoyne, BA, MSc, CEng, MICE & Modern precast concrete bridge beams are becoming increasingly long and slender, making them more susceptible to buckling failure. This paper shows that once the beam is positioned

Burgoyne, Chris

206

Stabilization of Mechanical Systems Using Controlled Lagrangians  

E-Print Network [OSTI]

for the problem of sta- bilization of an inverted pendulum on a cart and for the problem of stabilization­91­57556, AFOSR grant F49620-96-1- 0100, a Guggenheim Fellowship and the Inst. for Advanced Study. 2 can make use of energy methods which automati- cally provide a Lyapunov function for choosing control

Marsden, Jerrold

207

Stability, Energetics, and Turbulent Transport in  

E-Print Network [OSTI]

fields" Department of Astrophysical Sciences Spring Colloquium Steve Cowley (UK Atomic Energy Authority of solar-wind turbulence" Chris Chen (UC Berkeley) 2:40pm "Energy spectra in MHD turbulenceStability, Energetics, and Turbulent Transport in Astrophysical, Fusion, and Solar Plasmas 8

Torquato, Salvatore

208

Sulfate induced heave in lime stabilized soil  

E-Print Network [OSTI]

The addition of hydrated lime to clay soils is one of the most common methods of soil stabilization. However, when sulfates are present in the soil, the calcium in the lime reacts with the sulfates to form ettringite, an expandable mineral...

Bredenkamp, Sanet

1994-01-01T23:59:59.000Z

209

A Stability Index for Local Effectivity Functions  

E-Print Network [OSTI]

A Stability Index for Local Effectivity Functions Joseph Abdou October 9, 2009 Abstract We study - France; email: abdou@univ-paris1.fr 1 halshs-00389003,version1-14Oct2009 Author manuscript, published setting (see Abdou and Keiding (2003) for the general notion of effectiv- ity structure), we shall focus

Paris-Sud XI, Université de

210

Solar Resource Assessment  

SciTech Connect (OSTI)

This report covers the solar resource assessment aspects of the Renewable Systems Interconnection study. The status of solar resource assessment in the United States is described, and summaries of the availability of modeled data sets are provided.

Renne, D.; George, R.; Wilcox, S.; Stoffel, T.; Myers, D.; Heimiller, D.

2008-02-01T23:59:59.000Z

211

Writing Assessment: Additional Resources  

E-Print Network [OSTI]

29 Appendix A Writing Assessment: Additional Resources #12;30 Where can I find out more into the assessment process. On-campus resources give you with a "real person" to contact should you have questions Resources for Higher Education Outcomes Assessment http://www2.acs.ncsu.edu/UPA/survey/resource.htm Ohio

Schweik, Charles M.

212

Management Assessment and Independent Assessment Guide  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

The revision to this Guide reflects current assessment practices, international standards, and changes in the Department of Energy expectations. Cancels DOE G 414.1-1. Canceled by DOE G 414.1-1B.

2001-05-31T23:59:59.000Z

213

Assessing the assessments: Pharmaceuticals in the environment  

SciTech Connect (OSTI)

The relatively new issue of pharmaceutical contamination of the environment offers the opportunity to explore the application of values to the construction, communication and management of risk. The still-developing regulatory policies regarding environmental contamination with pharmaceuticals provide fertile ground for the introduction of values into the definition and management of risk. In this report, we summarize the current knowledge regarding pharmaceutical contamination of the environment and discuss specific attributes of pharmaceuticals that require special consideration. We then present an analysis showing that if values are incorporated into assessing, characterizing and managing risk, the results of risk assessments will more accurately reflect the needs of various stakeholders. Originating from an acknowledgement of the inherent uncertainty and value-laden nature of risk assessment, the precautionary principle (and later, the multi-criteria, integrated risk assessment), provides a direction for further research and policy development.

Enick, O.V. [Department of Biological Sciences, Simon Fraser University, Burnaby, BC, V5A 1S6 (Canada)], E-mail: oana.enick@gov.bc.ca; Moore, M.M. [Department of Biological Sciences, Simon Fraser University, Burnaby, BC, V5A 1S6 (Canada)], E-mail: mmoore@sfu.ca

2007-11-15T23:59:59.000Z

214

Engineering solutions for the long-term stabilization and isolation of uranium mill tailings in the United States  

SciTech Connect (OSTI)

Engineering solutions for the safe and environmentally protective disposal and isolation of uranium mill tailings in the United States include many factors. Among the factors discussed in this paper are cover design, materials selection, civil engineering, erosive forces, and cost effectiveness. Stabilization and isolation of tailings from humans and the environment are the primary goals of United States uranium mill tailings control standards. The performance of cover designs is addressed with respect to water infiltration, radon exhalation, geotechnical stability, erosion protection, human and animal intrusion prevention, and longevity. The need for and frequency of surveillance efforts to ensure continued disposal system performance are also assessed.

Lommler, J.C. [UMTRA Project AGRA Earth and Environmental, Inc., Albuquerque, NM (United States); Cormier, C. [Department of Energy, Albuquerque, NM (United States); Sanders, D.R. [Morrison Knudsen Environmental Services, San Francisco, CA (United States)

1995-12-31T23:59:59.000Z

215

Home Energy Assessments  

ScienceCinema (OSTI)

A home energy assessment, also known as a home energy audit, is the first step to assess how much energy your home consumes and to evaluate what measures you can take to make your home more energy efficient. An assessment will show you problems that may, when corrected, save you significant amounts of money over time. This video shows some of the ways that a contractor may test your home during an assessment, and helps you understand how an assessment can help you move toward energy savings. Find out more at: http://www.energysavers.gov/your_home/energy_audits/index.cfm/mytopic=11160

Dispenza, Jason

2013-05-29T23:59:59.000Z

216

Home Energy Assessments  

SciTech Connect (OSTI)

A home energy assessment, also known as a home energy audit, is the first step to assess how much energy your home consumes and to evaluate what measures you can take to make your home more energy efficient. An assessment will show you problems that may, when corrected, save you significant amounts of money over time. This video shows some of the ways that a contractor may test your home during an assessment, and helps you understand how an assessment can help you move toward energy savings. Find out more at: http://www.energysavers.gov/your_home/energy_audits/index.cfm/mytopic=11160

Dispenza, Jason

2010-01-01T23:59:59.000Z

217

Research progress in dynamic security assessment  

SciTech Connect (OSTI)

Areas discussed are power system modeling, state estimation, structure decomposition, state forecasting, clustering and security measure development. A detailed dynamic model of a multi-machine power system has been developed. A process state estimator was developed to estimate the long-term dynamic behavior of the power system. The algorithm is identical to the extended Kalman filter but has a modified process noise driving term. A two-stage structure estimation technique was proposed for identifying the power system network configuration. Two approaches to structure decomposition were investigated. A time-scale decomposition of the system equations, based on a singular perturbation approach, was evaluated using a detailed model of a generating system. Spatial decomposition was examined by applying an optimal network decomposition technique to a 39-bus test system. Stochastic approximation based approaches to estimator simplification were examined. Explicit expressions were obtained for the evolution of the first and second moments of the system state. Research into security measures proceeded in three directions. The first area involves viewing the security assessment problem as a hyperplane crossing problem for a stochastic process. The second approach examined the stability of an unforced linear system where the system coefficients are subject to future jumps. The third area of research has led to the formulation of a security measure suitable for on-line assessment of transient stability.

Not Available

1982-12-01T23:59:59.000Z

218

The Stability of Organic Solvents and Carbon Electrode in Nonaqueous...  

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

The Stability of Organic Solvents and Carbon Electrode in Nonaqueous Li-O2 Batteries. The Stability of Organic Solvents and Carbon Electrode in Nonaqueous Li-O2 Batteries....

219

Effects of additives on the stability of electrolytes for all...  

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

Effects of additives on the stability of electrolytes for all-vanadium redox flow batteries. Effects of additives on the stability of electrolytes for all-vanadium redox flow...

220

Relation between viscosity and stability for heavy oil emulsions  

E-Print Network [OSTI]

The relation between viscosity and stability has been hics. found by investigating the effect of surfactant concentration on emulsion stability. Based on the Bingham plastic model for viscosity as a function of shear rate, two parameters were found...

Ye, Sherry Qianwen

1998-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "measurement-based stability assessment" 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

STABILITY ANALYSIS OF INTERCONNECTED POWER SYSTEMS COUPLED WITH MARKET DYNAMICS  

E-Print Network [OSTI]

STABILITY ANALYSIS OF INTERCONNECTED POWER SYSTEMS COUPLED WITH MARKET DYNAMICS F.L. Alvarado1 J of generators and network interconnections. This paper examines questions of stability in such coupled systems

222

Stability of Biodiesel and Biodiesel Blends: Interim Report  

SciTech Connect (OSTI)

This is an interim report for a study of biodiesel oxidative stability. It describes characterization and accelerated stability test results for 19 B100 samples and six diesel fuels.

McCormick, R. L.; Alleman, T. L.; Waynick, J. A.; Westbrook, S. R.; Porter, S.

2006-04-01T23:59:59.000Z

223

Upper bounds on minimum distance of nonbinary quantum stabilizer codes  

E-Print Network [OSTI]

The most popular class of quantum error correcting codes is stabilizer codes. Binary quantum stabilizer codes have been well studied, and Calderbank, Rains, Shor and Sloane (July 1998) have constructed a table of upper bounds on the minimum distance...

Kumar, Santosh

2005-11-01T23:59:59.000Z

224

Fourier-Mukai transforms and stability conditions on abelian threefolds   

E-Print Network [OSTI]

Construction of Bridgeland stability conditions on a given Calabi-Yau threefold is an important problem and this thesis realizes the rst known examples of such stability conditions. More precisely, we construct a dense ...

Piyaratne, Hathurusinghege Dulip Bandara

2014-11-27T23:59:59.000Z

225

Blind topological measurement-based quantum computation  

E-Print Network [OSTI]

Blind quantum computation is a novel secure quantum-computing protocol that enables Alice, who does not have sufficient quantum technology at her disposal, to delegate her quantum computation to Bob, who has a fully fledged quantum computer, in such a way that Bob cannot learn anything about Alice's input, output and algorithm. A recent proof-of-principle experiment demonstrating blind quantum computation in an optical system has raised new challenges regarding the scalability of blind quantum computation in realistic noisy conditions. Here we show that fault-tolerant blind quantum computation is possible in a topologically protected manner using the Raussendorf-Harrington-Goyal scheme. The error threshold of our scheme is 0.0043, which is comparable to that (0.0075) of non-blind topological quantum computation. As the error per gate of the order 0.001 was already achieved in some experimental systems, our result implies that secure cloud quantum computation is within reach.

Tomoyuki Morimae; Keisuke Fujii

2012-09-06T23:59:59.000Z

226

Survey of Biomass Resource Assessments and Assessment Capabilities  

E-Print Network [OSTI]

Survey of Biomass Resource Assessments and Assessment Capabilities in APEC Economies Energy ...................................................................................................................................4 Biomass Resource Assessment Products and Assessment Methodologies, Department of Industry, Tourism and Resources, Australia Ms. Siti Hafsah, Office of the Minister of Energy

227

Plutonium stabilization and handling (PuSH)  

SciTech Connect (OSTI)

This Functional Design Criteria (FDC) addresses construction of a Stabilization and Packaging System (SPS) to oxidize and package for long term storage remaining plutonium-bearing special nuclear materials currently in inventory at the Plutonium Finishing Plant (PFP), and modification of vault equipment to allow storage of resulting packages of stabilized SNM for up to fifty years. The major sections of the project are: site preparation; SPS Procurement, Installation, and Testing; storage vault modification; and characterization equipment additions. The SPS will be procured as part of a Department of Energy nationwide common procurement. Specific design crit1460eria for the SPS have been extracted from that contract and are contained in an appendix to this document.

Weiss, E.V.

1997-01-23T23:59:59.000Z

228

HVDC models used in stability studies  

SciTech Connect (OSTI)

A new generation of detailed models for HVDC systems has recently been applied in power system stability programs. These models represent the high speed dynamics of the converter controllers as well as the L/R dynamics of the dc transmission. Older dc models such as those described in reference which are based upon pseudo-steady state relationships are however still in general use. The latter models remain popular since they require a minimum of data and significantly less computer resources than the detailed models. The following questions therefore need to be answered concerning the two types of models: (1) To what extent is simulation accuracy impacted by using the older HVDC model. (2) Is the difference in precision significant compared to other uncertainties which are inherent in stability calculations. This paper addresses these questions and also considers a third type of HVDC model described in Appendix I which relieves some of the assumptions associated with the pseudo steady state models.

Johnson, B.K.

1989-04-01T23:59:59.000Z

229

Stabilization of spent calcium-based sorbent  

SciTech Connect (OSTI)

The overall objective of this project is to obtain experimental data on the reactions of calcium-based sorbents applicable to both air-blown coal gasification systems and second generation fluid bed coal combustion systems (partial gasification). The project is a 40-month effort. A key technical issue for the utilization of calcium sorbents in advanced coal technologies is the subsequent stabilization of the solid wastes (calcium sulfide/ash) produced by such systems.

Shires, P.J.; Katta, S.; Henningsen, G.B.

1994-10-01T23:59:59.000Z

230

The Dark Energy Star and Stability analysis  

E-Print Network [OSTI]

We have proposed a new model of dark energy star consisting of five zones namely, solid core of constant energy density, the thin shell between core and interior, an inhomogeneous interior region with anisotropic pressures, thin shell and the exterior vacuum region. We have discussed various physical properties. The model satisfies all the physical requirements. The stability condition under small linear perturbation has also been discussed.

Piyali Bhar; Farook Rahaman

2015-01-12T23:59:59.000Z

231

Cyclic Imide Dioxime: Formation and Hydrolytic Stability  

SciTech Connect (OSTI)

Poly(acrylamidoximes) play an important role in the uranium extraction from seawater. The present work reports solution studies of simple analogs to address the formation and stability of two binding sites present in these polymers, open-chain amidoximes and cyclic imide dioximes, including: 1) conditions that maximize the formation of the cyclic form, 2) existence of a base-induced conversion from open-chain to cyclic form, and 3) degradation under acid and base conditions.

Kang, S.O. [University of Kansas; Vukovic, Sinisa [ORNL; Custelcean, Radu [ORNL; Hay, Benjamin [ORNL

2012-01-01T23:59:59.000Z

232

Oxygen stabilized zirconium vanadium intermetallic compound  

DOE Patents [OSTI]

An oxygen stabilized intermetallic compound having the formula Zr.sub.x OV.sub.y where x=0.7 to 2.0 and y=0.18 to 0.33. The compound is capable of reversibly sorbing hydrogen at temperatures from -196.degree. C. to 450.degree. C. at pressures down to 10.sup.-6 Torr. The compound is also capable of selectively sorbing hydrogen from gaseous mixtures in the presence of CO and CO.sub.2.

Mendelsohn, Marshall H. (Woodridge, IL); Gruen, Dieter M. (Downers Grove, IL)

1982-01-01T23:59:59.000Z

233

Friction and the Inverted Pendulum Stabilization Problem Sue Ann Campbell  

E-Print Network [OSTI]

Friction and the Inverted Pendulum Stabilization Problem Sue Ann Campbell Department of Applied. Keywords: inverted pendulum, friction, feedback control, stability analysis. 1 #12;INTRODUCTION to be the cause of failure of a feedback controller to stabilize a three link inverted pendulum system [2

Campbell, Sue Ann

234

WHEN DOES FINANCIAL SECTOR (IN)STABILITY INDUCE FINANCIAL REFORMS?  

E-Print Network [OSTI]

WHEN DOES FINANCIAL SECTOR (IN)STABILITY INDUCE FINANCIAL REFORMS? Susie LEE Ingmar SCHUMACHER (in)stability induce financial reforms? Susie Lee1 Ingmar Schumacher2 October 26, 2011 Abstract The article studies whether financial sector (in)stability had an effect on reforms in the fi- nancial sector

Boyer, Edmond

235

Structure stability and spectroscopy of metal clusters. Progress report  

SciTech Connect (OSTI)

Theory based on self-consistent field-linear combinations of atomic orbitals-molecular orbital theory was applied to clusters. Four areas were covered: electronic structure, equilibrium geometries, and stability of charged clusters, interaction of metal clusters with H and halogen atoms, thermal stability of isolated clusters, and stability and optical properties of hetero-atomic clusters. (DLC)

Not Available

1993-06-01T23:59:59.000Z

236

Advanced PID type fuzzy logic power system stabilizer  

SciTech Connect (OSTI)

An advanced fuzzy logic control scheme has been proposed for a micro-computer based power system stabilizer to enhance the overall stability of power systems. The proposed control scheme utilizes the PID information of the generator speed. The input signal to the stabilizer is the real power output of a study unit. Simulations show the effectiveness of the advanced fuzzy logic control scheme.

Hiyama, Takashi; Kugimiya, Masahiko; Satoh, Hironori (Kumamoto Univ. (Japan). Dept. of Electrical Engineering and Computer Science)

1994-09-01T23:59:59.000Z

237

Local Exponential H2 Stabilization of a 2 2 Quasilinear  

E-Print Network [OSTI]

of boundary stabilization for a quasilinear 2Ă?2 system of first-order hyperbolic PDEs. We design a full stability of the closed-loop system. The proof of stability is based on the construction of a strict pipelines or road traffic models. This problem has been previously considered for 2 Ă? 2 systems [8] and even

Bastin, Georges

238

Polymeric Stabilized Emulsions: Steric Effects and Deformation in Soft Systems  

E-Print Network [OSTI]

used to control emulsion and foam stability.1,2 An understanding of the underlying stabilizing) was used to extend these studies to a larger range of underlying surfaces including zirconia,8 glass,9 and foams at low water content and to operate at the edge of stability, it is crucial to gain a more

Chan, Derek Y C

239

RELAP-7 Numerical Stabilization: Entropy Viscosity Method  

SciTech Connect (OSTI)

The RELAP-7 code is the next generation nuclear reactor system safety analysis code being developed at the Idaho National Laboratory (INL). The code is based on the INL's modern scientific software development framework, MOOSE (Multi-Physics Object Oriented Simulation Environment). The overall design goal of RELAP-7 is to take advantage of the previous thirty years of advancements in computer architecture, software design, numerical integration methods, and physical models. The end result will be a reactor systems analysis capability that retains and improves upon RELAP5's capability and extends the analysis capability for all reactor system simulation scenarios. RELAP-7 utilizes a single phase and a novel seven-equation two-phase flow models as described in the RELAP-7 Theory Manual (INL/EXT-14-31366). The basic equation systems are hyperbolic, which generally require some type of stabilization (or artificial viscosity) to capture nonlinear discontinuities and to suppress advection-caused oscillations. This report documents one of the available options for this stabilization in RELAP-7 -- a new and novel approach known as the entropy viscosity method. Because the code is an ongoing development effort in which the physical sub models, numerics, and coding are evolving, so too must the specific details of the entropy viscosity stabilization method. Here the fundamentals of the method in their current state are presented.

R. A. Berry; M. O. Delchini; J. Ragusa

2014-06-01T23:59:59.000Z

240

Stability analysis of direct contact heat exchangers subject to system perturbations. Final report, Task 2  

SciTech Connect (OSTI)

This report includes a project summary, copies of two papers resulting from the work and the Ph.D. Dissertation of Dr. Mehdi Golafshani entitled, ''Stability of a Direct Contact Heat Exchanger''. Specifically, the work deals with the operational stability of a spray column type heat exchanger subject to disturbances typical of those which can occur for geothermal applications. A computer program was developed to solve the one-dimensional transient two-phase flow problem and it was applied to the design of a spray column. The operation and design of the East Mesa 500kW/sub e/ direct contactor was assessed. It is shown that the heat transfer is governed by the internal resistance of the dispersed phase. In fact, the performance is well-represented by diffusion of heat within the drops. 5 refs.

Jacobs, H.R.

1985-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "measurement-based stability assessment" 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

Industrial Assessment Center  

SciTech Connect (OSTI)

The University of Dayton (UD) performed energy assessments, trained students and supported USDOE objectives. In particular, the UD Industrial Assessment Center (IAC) performed 96 industrial energy assessment days for mid-sized manufacturers. The average identified and implemented savings on each assessment were $261,080 per year and $54,790 per year. The assessments served as direct training in industrial energy efficiency for 16 UD IAC students. The assessments also served as a mechanism for the UD IAC to understand manufacturing energy use and improve upon the science of manufacturing energy efficiency. Specific research results were published in 16 conference proceedings and journals, disseminated in 22 additional invited lectures, and shared with the industrial energy community through the UD IAC website.

J. Kelly Kissock; Becky Blust

2007-04-17T23:59:59.000Z

242

Thermal stability of diesel fuels by quantitative gravimetric JFTOT  

SciTech Connect (OSTI)

The current worldwide standard test method for assessing thermal stability of jet turbine aviation fuels is the ASTM D3241 method. This method generates a visual tube deposit rating which is not quantitative, but assumes that very dark colors equate to unstable fuels. The tube rating is coded against color standards and the darkest color is usually said to fail a fuel for use in jet turbine engines/fuel systems. The method also generates a semi-quantitative filter pressure drop. The pressure drop is so semi-quantitative that it also is afforded a pass/fail criterion for fuel acceptance in jet aircraft. In 1991, we described the construction of a test device which duplicated all of the experimentally important parameters of the D3241 method but which substituted a weighable 302 stainless steel (s/s) foil strip for the bulky tube, so that direct weighing of thermal surface deposits could be made. In addition, the nominal 17 micron (dutch weave) s/s filter of the D3241 was substituted with a nylon membrane 0.8 micron filter which was also capable of direct weighing of the fuel entrained solids generated by the test. In subsequent papers, the use of this device for generating a large data base of results based on aviation fuels from many different refinery processes and many different geographic/crude sources was described. In addition this new device, dubbed the gravimetric jet fuel total oxidation tester (JFTOT) after the original ASTM D3241 device, was also used to assess quantitatively the effects of temperature, pressure, and fuel flow in addition to the effects of dissolved metals and various fuel additives. This paper describes the JFTOT test for the analysis of middle distillate diesel fuels.

Beal, E.J.; Hardy, D.R. [Naval Research Laboratory, Washington, DC (United States)

1994-12-31T23:59:59.000Z

243

NATURAL GAS MARKET ASSESSMENT  

E-Print Network [OSTI]

CALIFORNIA ENERGY COMMISSION NATURAL GAS MARKET ASSESSMENT PRELIMINARY RESULTS In Support.................................................................................... 6 Chapter 2: Natural Gas Demand.................................................................................................. 10 Chapter 3: Natural Gas Supply

244

Hoisting & Rigging Assessment Form  

Broader source: Energy.gov [DOE]

  Assess the institutional and department/division hoisting and rigging (including forklift, overhead cranes small hoists, and mobile cranes) requirements, policies, procedures, and work practices...

245

TECHNOLOGY READINESS ASSESSMENT  

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

DECEMBER 2012 Pathway for readying the next generation of affordable clean energy technology -Carbon Capture, Utilization, and Storage (CCUS) 2012 TECHNOLOGY READINESS ASSESSMENT...

246

Recent progress in degradation and stabilization of organic solar cells  

SciTech Connect (OSTI)

Stability is of paramount importance in organic semiconductor devices, especially in organic solar cells (OSCs). Serious degradation in air limits wide applications of these flexible, light-weight and low-cost power-generation devices. Studying the stability of organic solar cells will help us understand degradation mechanisms and further improve the stability of these devices. There are many investigations into the efficiency and stability of OSCs. The efficiency and stability of devices even of the same photoactive materials are scattered in different papers. In particular, the extrinsic degradation that mainly occurs near the interface between the organic layer and the cathode is a major stability concern. In the past few years, researchers have developed many new cathodes and cathode buffer layers, some of which have astonishingly improved the stability of OSCs. In this review article, we discuss the recent developments of these materials and summarize recent progresses in the study of the degradation/stability of OSCs, with emphasis on the extrinsic degradation/stability that is related to the intrusion of oxygen and water. The review provides detailed insight into the current status of research on the stability of OSCs and seeks to facilitate the development of highly-efficient OSCs with enhanced stability.

Cao, Huanqi; He, Weidong; Mao, Yiwu; Lin, Xiao; Ishikawa, Ken; Dickerson, James H.; Hess, Wayne P.

2014-10-15T23:59:59.000Z

247

Phase Stability and Thermodynamic Assessment of the Np-Zr system  

E-Print Network [OSTI]

Metallic fuels have an important role to play in "fast breeder" Gen-IV type nuclear reactors, and U-Pu-Zr is one of the prototypical systems. Because of the variability in fuel chemistry during burn-up, it is important to understand the effect...

Bajaj, Saurabh

2012-02-14T23:59:59.000Z

248

Preliminary evaluation of a nondestructive ultrasonic technique for assessing stability of external skeletal fixation pins  

E-Print Network [OSTI]

35 35 39 42 43 46 48 ix CHAPTER Page IV VI LAMB WAVES Definition. Theory of Lamb Waves. Plate Equation Derivation Bar Wave Propagation. Discussion and Summary. EXPERIMENTAL TECHNIQUES. Ultrasonic and Computer Hardware. Probe... modes of Lamb waves traveling in a plate 45 51 Figure 4. 2 Phase speed curves for Lamb waves traveling in a steel plate 52 Figure 4. 3 Figure 5. 1 Group speed curves for Lamb waves traveling in a steel plate Experimental test setup showing...

Dickens, James Robert

1992-01-01T23:59:59.000Z

249

Assessing Stability of the Knee In Vitro Using Envelope Normalized Kinematics and Principal Component Analysis  

E-Print Network [OSTI]

!""#""$%&'()*+$,$)-'./')0#'1%##'2%'3$)4.'5"$%&'6%7#,.8#'9.4:*,$;#4$%=$8*,'?.:8.%#%)'!%*,-"$"'''For Partial Fulfillment of the Requirements for the degree of Master of Science'''!"#$%&'()#*"+,&&&Experimental Joint Biomechanics... Luchies, Committee member Dr. Sarah Kieweg, Committee member _____________________________ Date Defended&&&'''& ! ""! #$%!#$%&"&!'())"**%%!+(,!-."*/!012"3.,(!2%,*"+"%&!*$.*!*$"&!"&!*$%!.44,(5%6!5...

Fucinaro, Kaity

2012-12-31T23:59:59.000Z

250

Physical Stability of Long-Term Surface Barriers-Assessment of Potentially Disruptive Natural Events  

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 - September 2006Photovoltaic Theory and Modeling Los AlamosAerosol. |] a -" m

251

Saltstone Disposal Facility Mechanically Stabilized Earth Vault Closure Cap Degradation: Sensitivity Analysis  

SciTech Connect (OSTI)

As part of the current Saltstone Disposal Facility (SDF) Performance Assessment (PA) revision, Mechanically Stabilized Earth (MSE) vault closure cap degradation mechanisms and their impact upon filtration through the MSE vault closure cap were evaluated for the base case land use scenario (i.e. institutional control to pine forest). The degradation mechanisms evaluated included pine forest succession, erosion, and colloidal clay migration (Phifer 2003). Infiltration through the upper hydraulic barrier layer of the closure cap as determined by this evaluation will be utilized as the infiltration input to subsequent PORFLOW vadose zone contaminant transport modeling, which will also be performed as part of the PA revision.

PHIFER, MARK

2004-03-19T23:59:59.000Z

252

Training Needs Assessment Presentation  

Broader source: Energy.gov [DOE]

The TNA PowerPoint Presentation is targeted for the training points of contacts whose organization's participate in the DOE training needs assessment (TNA). This presentation goes over how the training needs assessment (TNA) is done and the components of the TNA data collection tool.

253

INTERMOUNTAIN INDUSTRIAL ASSESSMENT CENTER  

SciTech Connect (OSTI)

The U. S. Department of Energy’s Intermountain Industrial Assessment Center (IIAC) at the University of Utah has been providing eligible small- and medium-sized manufacturers with no-cost plant assessments since 2001, offering cost-effective recommendations for improvements in the areas of energy efficiency, pollution prevention, and productivity improvement.

MELINDA KRAHENBUHL

2010-05-28T23:59:59.000Z

254

Off-set stabilizer for comparator output  

DOE Patents [OSTI]

A stabilized off-set voltage is input as the reference voltage to a comparator. In application to a time-interval meter, the comparator output generates a timing interval which is independent of drift in the initial voltage across the timing capacitor. A precision resistor and operational amplifier charge a capacitor to a voltage which is precisely offset from the initial voltage. The capacitance of the reference capacitor is selected so that substantially no voltage drop is obtained in the reference voltage applied to the comparator during the interval to be measured.

Lunsford, James S. (Los Alamos, NM)

1991-01-01T23:59:59.000Z

255

Stability of fluid-loaded structures  

E-Print Network [OSTI]

for the following non-dimensional fluid/plate parameters: ? = 0?05? ? = 2 & ? = ? = 0?respectively, of a point scatterer or drive point.2) ?? ? ? ? ??: Neutral stability. Four propagating waves, two of which arepositive energy waves (PEWs: ?+1 and ??1 ) and two... are negative energy waves ( NEWs:?+2 and ??2 ), as shown in figure 2.3c. Wave energy, which will be defined more formallyin the next chapter, is the amount of work done to build up a wave from rest. Positiveenergy waves (PEWs) have positive ‘activation energy...

Arzoumanian, Sevag Hrair

2011-06-07T23:59:59.000Z

256

Global optimization for the phase stability problem  

SciTech Connect (OSTI)

The Gibbs tangent plane criterion is an important tool in determining the quality of obtained solutions to the phase and chemical equilibrium problem. The ability to determine if a postulated solution is thermodynamically stable is very useful in the search for the equilibrium solution. In this work simpler formulations are presented for the phase stability problem where non-ideal liquid phases are modeled using the NRTL and UNIQUAC models. It is shown how the global minimum of the tangent plane distance function can be obtained. Computational results demonstrate the efficiency of the proposed global optimization algorithms.

Floudas, C.; McDonald, C.

1994-12-31T23:59:59.000Z

257

Ceramic membranes with enhanced thermal stability  

DOE Patents [OSTI]

A method of creating a ceramic membrane with enhanced thermal stability is disclosed. The method involves combining quantities of a first metal alkoxide with a second metal, the quantities selected to give a preselected metal ratio in the resultant membrane. A limited amount of water and acid is added to the combination and stirred until a colloidal suspension is formed. The colloid is dried to a gel, and the gel is fired at a temperature greater than approximately 400.degree. C. The porosity and surface area of ceramic membranes formed by this method are not adversely affected by this high temperature firing.

Anderson, Marc A. (Madison, WI); Xu, Qunyin (Plainsboro, NJ); Bischoff, Brian L. (Madison, WI)

1993-01-01T23:59:59.000Z

258

Criterion of stability of the superconducting state  

E-Print Network [OSTI]

In this paper, we propose to draw attention to the stability criterion of the superconductor current state. We use for this purpose the rough systems mathematical apparatus allowing us to relate the desired criterion with the dielectric permittivity of the matter and to identify the type of all possible phonons trajectories in its superconducting state. The state of superconductivity in the matter can be explained only by the phonons behavior peculiarity. And on the basis of the above-mentioned assumption, the corresponding mathematical model is constructed.

Iogann Tolbatov

2009-10-23T23:59:59.000Z

259

Nonparametric Tests of Moment Condition Stability  

E-Print Network [OSTI]

are interested in whether or not ? is constant. To reformulate it into an inference problem of moment stability, let zt = (yt , x#4;t )#4; and m(zt ,?) = ( yt ? x#4;t ? ) xt . Then, under the null hypothesis that ? is constant, the moment condition (2.1) holds... for all t . Otherwise, for any vector ? of constants, E(m(zt ,?)) #5;= 0 for some nonnegligible fraction of the sample. Most studies in the literature consider the case where the distribution of xt is assumed to be stationary. Furthermore, we may allow...

Juhl, Ted P.; Xiao, Zhijie

2013-02-01T23:59:59.000Z

260

Stability, Higgs Boson Mass and New Physics  

E-Print Network [OSTI]

When the particle with mass $\\sim 126$ GeV discovered at LHC is identified with the Higgs boson of the Standard Model, intriguing and challenging questions arise. Among them, the issue of the EW vacuum stability. We find that, despite claims to the contrary, the latter strongly depends on new physics interactions. In particular, if $\\tau$ is the lifetime of the EW vacuum, new physics can turn $\\tau$ from $\\tau >> T_U$ to $\\tau << T_U$, where $T_U$ is the age of the Universe.

Vincenzo Branchina; Emanuele Messina

2014-05-27T23:59:59.000Z

Note: This page contains sample records for the topic "measurement-based stability assessment" 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

Stabilizing feedback controls for quantum systems  

E-Print Network [OSTI]

No quantum measurement can give full information on the state of a quantum system; hence any quantum feedback control problem is neccessarily one with partial observations, and can generally be converted into a completely observed control problem for an appropriate quantum filter as in classical stochastic control theory. Here we study the properties of controlled quantum filtering equations as classical stochastic differential equations. We then develop methods, using a combination of geometric control and classical probabilistic techniques, for global feedback stabilization of a class of quantum filters around a particular eigenstate of the measurement operator.

Mazyar Mirrahimi; Ramon van Handel

2005-11-10T23:59:59.000Z

262

Oxygen stabilized zirconium-vanadium-iron alloy  

DOE Patents [OSTI]

An oxygen stabilized intermetallic compound having the formula (Zr.sub.1-x Ti.sub.x).sub.2-u (V.sub.1-y Fe.sub.y)O.sub.z where x=0.0 to 0.9, y=0.01 to 0.9, z=0.25 to 0.5 and u=0 to 1. The compound is capable of reversibly sorbing hydrogen at temperatures from -196.degree. C. to 200.degree. C. at pressures down to 10.sup.-6 torr. The compound is suitable for use as a hydrogen getter in low pressure, high temperature applications such as magnetic confinement fusion devices.

Mendelsohn, Marshall H. (Woodridge, IL); Gruen, Dieter M. (Downers Grove, IL)

1982-01-01T23:59:59.000Z

263

Uv-Light Stabilization Additive Package For Solar Cell Module And Laminated Glass Applications  

DOE Patents [OSTI]

An ultraviolet light stabilization additive package is used in an encapsulant material that may be used in solar cell modules, laminated glass and a variety of other applications. The ultraviolet light stabilization additive package comprises a first hindered amine light stabilizer and a second hindered amine light stabilizer. The first hindered amine light stabilizer provides thermal oxidative stabilization, and the second hindered amine light stabilizer providing photo-oxidative stabilization.

Hanoka, Jack I. (Brookline, MA); Klemchuk, Peter P. (Watertown, CT)

2002-03-05T23:59:59.000Z

264

Ab-initio simulations of chemical stability indicators of the bis-DGA-type molecule and its radiation degradation products  

SciTech Connect (OSTI)

For hydrometallurgical treatment of the high level liquid waste (HLLW) in the DIAMEX and SANEX processes, organic compounds of the bis-DGA family are used as cation extractants in apolar solvents. For the compound of m-xylylene-bis-diglycolamide high distribution coefficients for Eu and Am were found. Since the environment of the process is highly radioactive and acidic (nitric acid), it is necessary to ensure the stability of the extractants. In order to analyse the process theoretically, the molecule of m-xylylene-bis- diglycolamide and two of its degradation products were simulated by the DFT computational methods (PBE, RPBE, BLYP, B3LYP) available within the simulation environment DMol{sup 3} 6.1 and Gaussian 09 software. The local chemical stability of some locations of the molecule was assessed from the calculated stability indicators (electrostatic potential, Fukui function, HOMO localization). In connection with the chemical treatment, especially the stability against an electrophilic attack was tested. The results of calculated bond orders and spatial distribution of electrostatic potential and HOMO were are successfully correlated with the local and general stability determined by the experiment. These results should be helpful for the further development of the separation process. (authors)

Koubsky, T.; Kalvoda, L.; Drab, M. [Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering, Dept. of Solid State Engineering, Trojanova 13, 120 00 Prague 2 (Czech Republic)

2013-07-01T23:59:59.000Z

265

Environmental assessment of electricity scenarios with Life Cycle Assessment  

E-Print Network [OSTI]

been assessed with Life Cycle Assessment (LCA) studies [1], [2], [3] and [4]. However environmentalEnvironmental assessment of electricity scenarios with Life Cycle Assessment Touria Larbi1 impacts assessment of scenarios is very rarely evaluated through a life cycle perspective partly because

Paris-Sud XI, Université de

266

Interactions of a Stabilized Radion and Duality  

E-Print Network [OSTI]

We determine the couplings of the graviscalar radion in Randall-Sundrum models to Standard Model fields propagating in the bulk of the space, taking into account effects arising from the dynamics of the Goldberger-Wise scalar that stabilizes the size of the extra dimension. The leading corrections to the radion couplings are shown to arise from direct contact interactions between the Goldberger-Wise scalar and the Standard Model fields. We obtain a detailed interpretation of the results in terms of the holographic dual of the radion, the dilaton. In doing so, we determine how the familiar identification of the parameters on the two sides of the AdS/CFT correspondence is modified in the presence of couplings of the bulk Standard Model fields to the Goldberger-Wise scalar. We find that corrections to the form of the dilaton couplings from effects associated with the stabilization of the extra dimension are suppressed by the square of the ratio of the dilaton mass to the Kaluza-Klein scale, in good agreement with results from the CFT side of the correspondence.

Zackaria Chacko; Rashmish K. Mishra; Daniel Stolarski; Christopher B. Verhaaren

2014-11-13T23:59:59.000Z

267

ITER MHD stability analysis. Final report  

SciTech Connect (OSTI)

This report summarizes the final results and conclusions from work done for ITER under the DOE Task 18 (Raytheon Task ITER-GA 4002E). The work was performed in collaboration with D. Pearlstein and R. Bulmer of the Lawrence Livermore National Laboratory (LLNL), in close conjunction with D. Boucher of the ITER Joint Central Team (JCT). The work was partly done at General Atomics in San Diego and partly at LLNL. Approximately eight hours per week were spent from August 1994 through June 1995, with a no-cost extension through December 1995. The report covers work on the ideal MHD stability analysis for the ITER TAC scenarios and DIII-D ITER Demonstration Discharges, code modifications performed in order to efficiently and accurately complete the stability calculations, and additional collaborative efforts involving code benchmarking and dissemination of the DIII-D ITER Demonstration Discharge data. The work spawned several presentations and reports, including significant contributions to published IAEA Proceedings, and these are also summarized. 8 refs., 9 figs.

Turnbull, A.D.

1996-05-01T23:59:59.000Z

268

An Analysis of Two Industrial Assessment Center Extended Assessments  

E-Print Network [OSTI]

The Industrial Assessment Center at Texas A&M University extended assessments by spending about two extra days at each of three manufacturing plants. The extended assessments are characterized by use of sophisticated electronic monitoring equipment...

Farouz, H. E.; Gafford, G. D.; Eggebrecht, J. A.; Heffington, W. M.

269

Stability and Turbulence in the Atmospheric Boundary Layer: A Comparison of Remote Sensing and Tower Observations  

SciTech Connect (OSTI)

When monitoring winds and atmospheric stability for wind energy applications, remote sensing instruments present some advantages to in-situ instrumentation such as larger vertical extent, in some cases easy installation and maintenance, measurements of vertical humidity profiles throughout the boundary layer, and no restrictions on prevailing wind directions. In this study, we compare remote sensing devices, Windcube lidar and microwave radiometer, to meteorological in-situ tower measurements to demonstrate the accuracy of these measurements and to assess the utility of the remote sensing instruments in overcoming tower limitations. We compare temperature and wind observations, as well as calculations of Brunt-Vaisala frequency and Richardson numbers for the instrument deployment period in May-June 2011 at the U.S. Department of Energy National Renewable Energy Laboratory's National Wind Technology Center near Boulder, Colorado. The study reveals that a lidar and radiometer measure wind and temperature with the same accuracy as tower instruments, while also providing advantages for monitoring stability and turbulence. We demonstrate that the atmospheric stability is determined more accurately when the liquid-water mixing ratio derived from the vertical humidity profile is considered under moist-adiabatic conditions.

Friedrich, K.; Lundquist, J. K.; Aitken, M.; Kalina, E. A.; Marshall, R. F.

2012-01-01T23:59:59.000Z

270

Initial mechanical stability of cementless highly-porous titanium tibial components  

SciTech Connect (OSTI)

Cementless fixation in total knee replacement has seen limited use since reports of early failure surfaced in the late 80s and early 90s. However the emergence of improved biomaterials, particularly porous titanium and tantalum, has led to a renewed interest in developing a cementless tibial component to enhance long-term survivorship of the implants. Cement is commonly employed to minimize micromotion in new implants but represents a weak interface between the implant and bone. The elimination of cement and application of these new biomaterials, which theoretically provide improved stability and ultimate osseointegration, would likely result in greater knee replacement success. Additionally, the removal of cement from the procedure would help minimize surgical durations and get rid of the time needed for curing, thereby the chance of infection. The purpose of this biomechanical study was twofold. The first goal was to assess whether vibration analysis techniques can be used to evaluate and characterize initial mechanical stability of cementless implants more accurately than the traditional method of micromotion determination, which employs linear variable differential transducers (LVDTs). Second, an evaluative study was performed to determine the comparative mechanical stability of five designs of cementless tibial components under mechanical loading designed to simulate in vivo forces. The test groups will include a cemented Triathlon Keeled baseplate control group, three different 2-peg cementless baseplates with smooth, mid, and high roughnesses and a 4-peg cement/ess baseplate with mid-roughness.

Stone, Timothy Brandon [Los Alamos National Laboratory; Amer, Luke D [Los Alamos National Laboratory; Warren, Christopher P [Los Alamos National Laboratory; Cornwell, Phillip [Los Alamos National Laboratory; Meneghini, R Michael [UNIV OF CONNECTICUT HEALTH CENTER

2008-01-01T23:59:59.000Z

271

Phase Stability of Multicomponent NAPLs Containing PAHs  

E-Print Network [OSTI]

to produce complex synthetic NAPLs which can be used as surrogate materials to simulate the behavior of a contaminant is dependent on its phase state. For solid phase contaminants in contact with water, the maximum assessment, predicting remediation effectiveness, and experimental research. In this paper, we discuss NAPL

Peters, Catherine A.

272

Litt om evolusjonr spillteori. 1. ESS: Evolusjonrt Stabile Strategier  

E-Print Network [OSTI]

Litt om evolusjonær spillteori. 1. ESS: Evolusjonært Stabile Strategier I klassisk spillteori har konstant i tid. Spørsm°alet er om man kan si noe om denne (stabile) strategifordelingen. 1.1. ESS. La være av befolk- ningen. Vi sier at p er en Evolusjonært Stabil Strategi (ESS) hvis p ikke kan bli invadert

Løw, Erik

273

Evaluation of the performance of polypropylene fibers on soil stabilization  

E-Print Network [OSTI]

, Chattanooga, TN 37416. Its product name is "Fibergrids". These are one inch long 1000 denier fibers having a specific gravity of 0. 91. Sand (SM) was stabilized with type I portland cement and clay (CL) was stabilized with lime. Moisture-Density tests... of soil aggregates, especially when small contents of chemical stabilizer (portland cement or lime) was added and the stress-strain curves for these composites have increased post cracking ductility which is an important property where there is impact...

Sangineni, Srinivas Meherji

1992-01-01T23:59:59.000Z

274

Technology Readiness Assessment Guide  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

The Guide assists individuals and teams involved in conducting Technology Readiness Assessments (TRAs) and developing Technology Maturation Plans (TMPs) for the DOE capital asset projects subject to DOE O 413.3B. Cancels DOE G 413.3-4.

2011-09-15T23:59:59.000Z

275

Environmental Assessment of  

E-Print Network [OSTI]

Environmental Assessment of Geologic Storage of CO2 December 2003 REVISED: March 2004 MIT LFEE 2003........................................................................................ 23 4.4 CO2 Pipeline Transportation........................................................................................ 16 4.2 Enhanced Oil Recovery (EOR

276

DOEEA-1203 Environmental Assessment  

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

Radi o l ogi cal Control Manual low-level b u r i a l grounds 1 ow- 1 eve1 m i xed waste low-level waste National Environmental Policy Act o f 1969 performance assessment Resource...

277

Assessing Renewable Energy Options  

Broader source: Energy.gov [DOE]

Federal agencies should assess renewable energy options for each specific project when integrating renewable energy in new building construction or major renovations. This section covers the preliminary screening, screening, feasibility study, and sizing and designing systems phases.

278

FILTER COMPONENT ASSESSMENT--CERAMIC CANDLES--  

SciTech Connect (OSTI)

Efforts at Siemens Westinghouse Power Corporation (SWPC) have been focused on development of hot gas filter systems as an enabling technology for advanced coal and biomass-based gas turbine power generation applications. SWPC has been actively involved in the development of advanced filter materials and component configuration, has participated in numerous surveillance programs characterizing the material properties and microstructure of field tested filter elements, and has undertaken extended, accelerated filter life testing programs. This report summarizes the results of SWPC's filter component assessment efforts, identifying the performance and stability of porous monolithic, fiber reinforced, and filament wound ceramic hot gas candle filters, potentially for {ge}3 years of viable pressurized fluidized-bed combustion (PFBC) service operating life.

M.A. Alvin

2004-04-23T23:59:59.000Z

279

assessment ioa assessment: Topics by E-print Network  

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

Websites Summary: technology analysis Noon Lunch 1:15 California off-shore wind technology assessment 1:45 Technical assessmentRESEARCH RESULTS FORUM FOR RENEWABLE ENERGY...

280

Assessing the catastrophic break up of Briksdalsbreen, Norway,1 associated with rapid climate change.2  

E-Print Network [OSTI]

about the potential influence of rapid climate change13 on the stability of major ice sheets retreat of Greenland's tidewater glaciers.32 33 Introduction34 The response of glaciers to climate change1 Assessing the catastrophic break up of Briksdalsbreen, Norway,1 associated with rapid climate

Southampton, University of

Note: This page contains sample records for the topic "measurement-based stability assessment" 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

Elucidating the Higher Stability of Vanadium (V) Cations in Mixed...  

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

Elucidating the Higher Stability of Vanadium (V) Cations in Mixed Acid Based Redox Flow Battery Electrolytes. Abstract: The Vanadium (V) cation structures in mixed acid based...

282

Nonrelativistic hydrogen type stability problems on nonparabolic 3-manifolds  

E-Print Network [OSTI]

We extend classical Euclidean stability theorems corresponding to the nonrelativistic Hamiltonians of ions with one electron to the setting of non parabolic Riemannian 3-manifolds.

Batu Güneysu

2012-03-19T23:59:59.000Z

283

Advanced Oxidation & Stabilization of PAN-Based Carbon Precursor...  

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

Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. lm04paulauskas.pdf More Documents & Publications Advanced Oxidation & Stabilization of...

284

A STABILIZED MODEL AND AN EFFICIENT SOLUTION METHOD ...  

E-Print Network [OSTI]

1. Introduction. Given a fixed mix of electric power plants (nuclear, thermal, hydroelectric and possibly peak ... the stabilized method on numerical simulations. 2.

2011-01-28T23:59:59.000Z

285

Injectivity and stability for a generic class of generalized Radon ...  

E-Print Network [OSTI]

then show injectivity and stability for an open, dense subset of smooth generalized ... are found in applications to many other fields, including harmonic analysis,.

2014-12-15T23:59:59.000Z

286

Stability estimates for the hyperbolic Dirichlet to Neumann map in ...  

E-Print Network [OSTI]

In this paper we consider the question of stability, that is, whether if two Dirichlet to .... associated to two metrics are the same to conclude that the harmonic ...

287

Biophysical Studies of Protein Folding and Binding Stability.  

E-Print Network [OSTI]

?? Interactions between charged residues are known to have significant effects on protein folding stability and binding properties. The contributions of different types of non-covalent… (more)

Batra, Jyotica

2009-01-01T23:59:59.000Z

288

attentional stability neural: Topics by E-print Network  

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

the Stability Region of a Neural Network with a General Distribution of Delays R Campbell, Sue Ann 38 A neural oscillator model of binaural auditory selective attention...

289

Optimization Online - On the Dynamic Stability of Electricity Markets  

E-Print Network [OSTI]

Jan 31, 2011 ... On the Dynamic Stability of Electricity Markets. Victor M. Zavala (vzavala ***at*** mcs.anl.gov) Mihai Anitescu (anitescu ***at*** mcs.anl.gov).

Victor M. Zavala

2011-01-31T23:59:59.000Z

290

PH/sub 3/ treatment for polymer stabilization  

DOE Patents [OSTI]

Polymers are stabilized against oxidative degradation by treatment with phosphine gas. The treatment can be used in situ on polymeric components already in use.

Not Available

1982-07-20T23:59:59.000Z

291

activity state stability: Topics by E-print Network  

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

screened for compounds containing the pharmacophore. Forty-seven compounds resulted from Marshall, Garland R. 5 Stability and Activation Gaps of Parafermionic Hall States in the...

292

Elliptically Bent X-ray Mirrors with Active Temperature Stabilization  

E-Print Network [OSTI]

stabilization based on a Peltier element attached directlyof the mirror with a Peltier element attached directly tostabilization based on a Peltier element have shown a

Yuan, Sheng

2010-01-01T23:59:59.000Z

293

Nevada 2012: Budget Stability and Hope for Improvement  

E-Print Network [OSTI]

Guy (2011) “Ruling Bites Budget Plans,” Reno Gazette-University of Utah. Budget Stability and Hope forBureau (2010) Revenue and Budget. Carson City, Nevada:

Morin, Robert P.

2013-01-01T23:59:59.000Z

294

Stabilizing coal-water mixtures with Portland cement  

DOE Patents [OSTI]

Coal-water mixes stabilized by the addition of Portland cement which may additionally contain retarding carbohydrates, or borax are described. 1 tab.

Steinberg, M.; Krishna, C.R.

1984-10-17T23:59:59.000Z

295

apolipoprotein stabilized nanodisk: Topics by E-print Network  

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

stability wrt measurement error) Then can achieve GAS Assume: s.t. 12; Liberzon, Daniel 49 A Novel Function of Apolipoprotein E: Upregulation of ATP-Binding Cassette...

296

Stabilized Lithium Metal Powder, Enabling Material and Revolutionary...  

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

1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation es011yakovleva2011p.pdf More Documents & Publications Stabilized...

297

On the Difficulty of Deciding Asymptotic Stability of Cubic ...  

E-Print Network [OSTI]

to other families of nonlinear dynamics. The problem of deciding stability of ... Science, Massachusetts Institute of Technology. E-mail: a a a@mit.edu. The origin ...

2011-12-04T23:59:59.000Z

298

The robust stabilization problem for discrete-time descriptor systems  

E-Print Network [OSTI]

Sep 23, 2014 ... Abstract: We investigate the robust stabilization problem for the descriptor discrete-time systems and build an optimal solution in the case when ...

Claudiu Dinicu

2014-09-23T23:59:59.000Z

299

Colorado Statewide Forest Resource Assessment  

E-Print Network [OSTI]

Colorado Statewide Forest Resource Assessment A Foundation for Strategic Discussion and Private Forestry Redesign Initiative 2 National Guidance for Statewide Forest Resource Assessments 4 The Colorado Statewide Resource Assessment and all appendices are available online on the Colorado State Forest

300

Mesoscale Quantization and Self-Organized Stability  

E-Print Network [OSTI]

In the world of technology, one of the most important forms of friction is that of rolling friction. Yet it is one of the least studied of all the known forms of energy dissipation. In the present experiments we investigate the oscillatory free-decay of a rigid cube, whose side-length is less than the diameter of the rigid cylinder on which it rests. The resulting free-decay is one of harmonic motion with damping. The non-dissipative character of the oscillation yields to a linear differential equation; however, the damping is found to involve more than a deterministic nonlinearity. Dominated by rolling friction, the damping is sensitive to the material properties of the contact surfaces. For `clean' surfaces of glass on glass, the decay shows features of mesoscale quantization and self-organized stability.

Randall D. Peters

2005-06-16T23:59:59.000Z

Note: This page contains sample records for the topic "measurement-based stability assessment" 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

Quantum mechanical stabilization of Minkowski signature wormholes  

SciTech Connect (OSTI)

When one attempts to construct classical wormholes in Minkowski signature Lorentzian spacetimes violations of both the weak energy hypothesis and averaged weak energy hypothesis are encountered. Since the weak energy hypothesis is experimentally known to be violated quantum mechanically, this suggests that a quantum mechanical analysis of Minkowski signature wormholes is in order. In this note I perform a minisuperspace analysis of a simple class of Minkowski signature wormholes. By solving the Wheeler-de Witt equation for pure Einstein gravity on this minisuperspace the quantum mechanical wave function of the wormhole is obtained in closed form. The wormhole is shown to be quantum mechanically stabilized with an average radius of order the Planck length. 8 refs.

Visser, M.

1989-05-19T23:59:59.000Z

302

Stability of Quantum Fluids : Wavy Interface Effect  

E-Print Network [OSTI]

A numerical investigation for the stability of the incompressible slip flow of normal quantum fluids (above the critical phase transition temperature) inside a microslab where surface acoustic waves propagate along the walls is presented. Governing equations and associated slip velocity and wavy interface boundary conditions for the flow of normal fluids confined between elastic wavy interfaces are obtained. The numerical approach is an extension (with a complex matrix pre-conditioning) of the spectral method. We found that the critical Reynolds number ($Re_{cr}$ or the critical velocity) decreases significantly once the slip velocity and wavy interface effects are present and the latter is dominated ($Re_{cr}$ mainly depends on the wavy interfaces).

A. Kwang-Hua Chu

2005-08-31T23:59:59.000Z

303

Process converts incineration slag into stabilized residue  

SciTech Connect (OSTI)

During 1973 and 1974, EMC-Services designed and built a physico-chemical treatment plant in Hombourg, in France's Alsatian region. The plant is still in operation. Since then, EMC-Services has developed substantial experience in environmental projects, becoming one of the top companies internationally with experience and practice in designing, building and operating hazardous waste treatment plants. EMC-Services operates in France in Salaise, Strasbourg, Mitry-Mory, and Saint-Vulbas, where eight incinerators treat solid, liquid, highly halogenated and nonhazardous industrial waste. The incinerators, built or updated by EMC-Services, have a total capacity of about 200,000 tons per year. In the new process, incineration of special industrial wastes produces non-volatilized solid residue or slag, which is sent for disposal, in compliance with regulations, to special disposal plants. Future European regulations will incorporate landfilling criteria requiring such slag to be stabilized.

Thauront, J.; Deneux-Mustin, S. (EMC-Services, Paris (France)); Durecu, S. (EMC-Services, Vandoeuvre-Les Nancy (France)); Fraysse, G. (EMC-Services, Saint-Vulbas (France)); Berthelin, J. (Centre de Pedologie Biologique, Vandoeuvre-Les Nancy (France))

1994-12-01T23:59:59.000Z

304

Nonlinear Elasticity of Flow-Stabilized Solids  

E-Print Network [OSTI]

Thermal fluctuations, geometric exclusion, and external driving all govern the mechanical response of dense particulate suspensions. Here, we measure the stress-strain response of quasi-two-dimensional flow-stabilized microsphere heaps in a regime in which all three effects are present using a microfluidic device. We observe that the elastic modulus and the mean interparticle separation of the heaps are tunable via the confining stress provided by the fluid flow. Furthermore, the measured stress-strain curves exhibit a universal nonlinear shape which can be predicted from a thermal van der Waals equation of state with excluded volume. This analysis indicates that many-body interactions contribute a significant fraction of the stress supported by the heap.

Carlos P. Ortiz; Karen E. Daniels; Robert Riehn

2014-07-20T23:59:59.000Z

305

Engineering assessment of inactive uranium mill tailings  

SciTech Connect (OSTI)

The Grand Junction site has been reevaluated in order to revise the October 1977 engineering assessment of the problems resulting from the existence of radioactive uranium mill tailings at Grand Junction, Colorado. This engineering assessment has included the preparation of topographic maps, the performance of core drillings and radiometric measurements sufficient to determine areas and volumes of tailings and radiation exposures of individuals and nearby populations, the investigations of site hydrology and meteorology, and the evaluation and costing of alternative corrective actions. Radon gas released from the 1.9 million tons of tailings at the Grand Junction site constitutes the most significant environmental impact, although windblown tailings and external gamma radiation are also factors. The eight alternative actions presented herein range from millsite and off-site decontamination with the addition of 3 m of stabilization cover material (Option I), to removal of the tailings to remote disposal sites and decontamination of the tailings site (Options II through VIII). Cost estimates for the eight options range from about $10,200,000 for stabilization in-place to about $39,500,000 for disposal in the DeBeque area, at a distance of about 35 mi, using transportation by rail. If transportation to DeBeque were by truck, the cost estimated to be about $41,900,000. Three principal alternatives for the reprocessing of the Grand Junction tailings were examined: (a) heap leaching; (b) treatment at an existing mill; and (c) reprocessing at a new conventional mill constructed for tailings reprocessing. The cost of the uranium recovered would be about $200/lb by heap leach and $150/lb by conventional plant processes. The spot market price for uranium was $25/lb early in 1981. Therefore, reprocessing the tailings for uranium recovery appears not to be economically attractive.

Not Available

1981-07-01T23:59:59.000Z

306

Brane Stabilization and Regionality of Extra Dimensions  

E-Print Network [OSTI]

Extra dimensions are a common feature of beyond the Standard Model physics. In a braneworld scenario, local physics on the brane can depend strongly on the brane's location within the bulk. Generically, the relevant properties of the bulk manifold for the physics on/of the brane are neither local nor global, but depend on the structure of finite regions of the bulk, even for locally homogeneous and isotropic bulk geometries. In a recent work, various mechanisms (in a braneworld context) were considered to stabilize the location of a brane within bulk spaces of non-trivial topology. In this work we elaborate on and generalize that work by considering additional bulk and brane dimensionalities as well as different boundary conditions on the bulk scalar field that provides a Casimir force on the brane, providing further insight on this effect. In D=2+1 (D=5+1) we consider both local and global contributions to the effective potential of a 1-brane (4-brane) wrapped around both the 2-dimensional hyperbolic horn and Euclidean cone, which are used as toy models of an extra-dimensional manifold. We calculate the total energy due to brane tension and elastic energy (extrinsic curvature) as well as that due to the Casimir energy of a bulk scalar satisfying both Dirchlet and Neumann boundary conditions on the brane. In some cases stable minima of the potential are found that result from the competition of at least two of the contributions. Generically, any one of these effects may be sufficient when the bulk space has less symmetry than the manifolds considered here. We highlight the importance of the Casimir effect for the purpose of brane stabilization.

David M. Jacobs; Glenn D. Starkman; Andrew J. Tolley

2014-10-19T23:59:59.000Z

307

In situ vitrification: application analysis for stabilization of transuranic waste  

SciTech Connect (OSTI)

The in situ vitrification process builds upon the electric melter technology previously developed for high-level waste immobilization. In situ vitrification converts buried wastes and contaminated soil to an extremely durable glass and crystalline waste form by melting the materials, in place, using joule heating. Once the waste materials have been solidified, the high integrity waste form should not cause future ground subsidence. Environmental transport of the waste due to water or wind erosion, and plant or animal intrusion, is minimized. Environmental studies are currently being conducted to determine whether additional stabilization is required for certain in-ground transuranic waste sites. An applications analysis has been performed to identify several in situ vitrification process limitations which may exist at transuranic waste sites. Based on the process limit analysis, in situ vitrification is well suited for solidification of most in-ground transuranic wastes. The process is best suited for liquid disposal sites. A site-specific performance analysis, based on safety, health, environmental, and economic assessments, will be required to determine for which sites in situ vitrification is an acceptable disposal technique. Process economics of in situ vitrification compare favorably with other in-situ solidification processes and are an order of magnitude less than the costs for exhumation and disposal in a repository. Leachability of the vitrified product compares closely with that of Pyrex glass and is significantly better than granite, marble, or bottle glass. Total release to the environment from a vitrified waste site is estimated to be less than 10/sup -5/ parts per year. 32 figures, 30 tables.

Oma, K.H.; Farnsworth, R.K.; Rusin, J.M.

1982-09-01T23:59:59.000Z

308

UNDERSTANDING FORCES THAT CONTRIBUTE TO PROTEIN STABILITY: APPLICATION FOR INCREASING PROTEIN STABILITY  

E-Print Network [OSTI]

Page 1 Ribbon diagram showing the structure of VHP and VlsE ......................... 12 2 Far-UV CD spectra for VHP and VlsE ...................................................... 13 3 Energy diagrams for protein folding reaction... interactions, hydrogen bonding and hydrophobic effect. The stabilizing effects of these interactions are largely opposed by the major destabilizing force, which is the conformational entropy loss upon protein folding. Other forces, such as electrostatic...

Fu, Hailong

2010-07-14T23:59:59.000Z

309

National Geothermal Resource Assessment and Classification |...  

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

Geothermal Resource Assessment and Classification National Geothermal Resource Assessment and Classification National Geothermal Resource Assessment and Classification presentation...

310

Cognitive-Developmental Assessments 1 Designing Cognitive-Developmental Assessments  

E-Print Network [OSTI]

Cognitive-Developmental Assessments 1 Designing Cognitive-Developmental Assessments: A Case Study or quote without permission of the authors. #12;Cognitive-Developmental Assessments 2 Designing Cognitive in designing this assessment system is establishing a cognitive-developmental map in which age

Junker, Brian

311

Image Utility Assessment and a Relationship with Image Quality Assessment  

E-Print Network [OSTI]

Image Utility Assessment and a Relationship with Image Quality Assessment David M. Rouse , Romuald information to humans, and this paper investigates the utility assessment task, where human observers evaluate the usefulness of a natural image as a surrogate for a reference. Current QA algorithms implicitly assess utility

Hemami, Sheila S.

312

Farm Assessment for Water Resource Protection Field Assessment  

E-Print Network [OSTI]

Farm Assessment for Water Resource Protection WQ-42 Field Assessment for Water Resource Protection Extension Service · West Lafayette, IN 47907 Introduction The Field Assessment for Water Resource Protection management practices. You decide what actions to take. Field Assessment for Water Resource Protection

Holland, Jeffrey

313

Asymptotic Stability of Heteroclinic Cycles in Systems with Symmetry, II  

E-Print Network [OSTI]

Asymptotic Stability of Heteroclinic Cycles in Systems with Symmetry, II Martin Krupa #3; Ian heteroclinic cycles that persist under perturbations that respect the symmetry. In previous work, we began a system- atic investigation into the asymptotic stability of such cycles. In particular, we found a su

314

Stabilization of tokamak plasma by lithium streams L. E. Zakharov,  

E-Print Network [OSTI]

a stabilization mechanism independent of the plasma properties. 2. Interaction of lithium streams with externalStabilization of tokamak plasma by lithium streams L. E. Zakharov, Princeton Plasma Physics-boundary magnetohydrodynamic instabilities in tokamaks by liquid lithium streams driven by magnetic propulsion is formulated

315

Stabilization of tokamak plasma by lithium streams L. E. Zakharov,  

E-Print Network [OSTI]

a stabilization mechanism independent of the plasma properties. 2 Interaction of lithium streams with externalStabilization of tokamak plasma by lithium streams L. E. Zakharov, Princeton Plasma Physics-boundary magnetohydrodynamic instabilities in tokamaks by liquid lithium streams driven by magnetic propulsion is formulated

Zakharov, Leonid E.

316

ON THE ACOUSTIC SINGLE LAYER POTENTIAL: STABILIZATION AND FOURIER ANALYSIS  

E-Print Network [OSTI]

ON THE ACOUSTIC SINGLE LAYER POTENTIAL: STABILIZATION AND FOURIER ANALYSIS A. BUFFA AND S. SAUTER in the stability and convergence estimates attains its minumum. Key words. Acoustic scattering, Galerkin boundary discretizations for the Helmholtz problem suffer from the pollution effect, i.e., the constants in the Galerkin

Buffa, Annalisa

317

A New Environmentally Friendly AL/ZR-Based Clay Stabilizer  

E-Print Network [OSTI]

Clay stabilizers are means to prevent fines migration and clay swelling, which are caused by the contact of formation with low salinity or high pH brines at high temperature. Previous clay stabilizers including: Al and Zr compounds and cationic...

El-Monier, Ilham Abdallah

2013-01-18T23:59:59.000Z

318

Morphology and thermal conductivity of yttria-stabilized zirconia coatings  

E-Print Network [OSTI]

yttria-stabilized zir- conia (YSZ) is then applied to provide thermal insulation [1]. This ceramic layer]. The thermal conductivity of the ceramic layer has been found to depend on the pore morphology within a coatingMorphology and thermal conductivity of yttria-stabilized zirconia coatings Hengbei Zhao a

Wadley, Haydn

319

Spin-stabilized magnetic levitation without vertical axis of rotation  

DOE Patents [OSTI]

The symmetry properties of a magnetic levitation arrangement are exploited to produce spin-stabilized magnetic levitation without aligning the rotational axis of the rotor with the direction of the force of gravity. The rotation of the rotor stabilizes perturbations directed parallel to the rotational axis.

Romero, Louis (Albuquerque, NM); Christenson, Todd (Albuquerque, NM); Aaronson, Gene (Albuquerque, NM)

2009-06-09T23:59:59.000Z

320

Dynamical stability of Minkowski space in higher order gravity  

E-Print Network [OSTI]

We discuss the Minkowski stability problem in modified gravity by using dynamical system approach. The method to investigate dynamical stability of Minkowski space was proposed. This method was applied for a some modified gravity theories, such as $f(R)$ gravity, $f(R)+\\alpha R\\Box R$ gravity and scalar-tensor gravity models with non-minimal kinetic coupling.

Petr Tretyakov

2014-07-15T23:59:59.000Z

Note: This page contains sample records for the topic "measurement-based stability assessment" 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

Electronic Structure and Stability of Semiconducting Graphene Nanoribbons  

E-Print Network [OSTI]

Electronic Structure and Stability of Semiconducting Graphene Nanoribbons Vero´nica Barone, Oded stability of semiconducting graphene nanoribbons. We consider ribbons with different edge nature including band structure of graphene (a single infinite sheet of graphite). Depending on their chirality

Hod, Oded

322

The Role of Energy Storage for Mini-Grid Stabilization  

E-Print Network [OSTI]

The Role of Energy Storage for Mini-Grid Stabilization Report IEA-PVPS T11-02:2011 hal-00802927 Program The role of energy storage for mini-grid stabilization IEA PVPS Task 11 Report IEA-PVPS T11 Foreword 5 Executive Summary 7 1 Introduction 10 2 Scope of the study 14 3 The role of energy storage

Boyer, Edmond

323

HTS Conductor Design Issues Including Quench and Stability,  

E-Print Network [OSTI]

/background · Stability and protection are crucial issues for HTS tapes and coils applied to electric power devices. ­Both for the economic argument for HTS AC applications like cables and transformers. · Conductor design is importantHTS Conductor Design Issues Including Quench and Stability, AC Losses, and Fault Currents M. J

324

Fundamental studies of fluid mechanics and stability in porous media  

SciTech Connect (OSTI)

This report summarizes accomplished and proposed work for the fundamental studies of fluid mechanics and stability in porous media. Topics discussed include: viscous fingering in miscible displacements; polymer flow interactions in free shear layers of viscoelastic fluids; effect of nonmonotonic viscosity profiles on the stability of miscible displacements in porous media; and references. (JL)

Homsy, G.M.

1991-08-01T23:59:59.000Z

325

Characterization and stabilization of arsenic in water treatment residuals  

E-Print Network [OSTI]

-arsenic compounds. However, it is suggested that the ordinary Portland cement (OPC) should be added with the lime for the long term stabilization because lime can be slowly consumed when directly exposed to atmospheric CO2. The solidification and stabilization (S...

Wee, Hun Young

2004-11-15T23:59:59.000Z

326

Stabilization of a purely dipolar quantum gas against collapse  

E-Print Network [OSTI]

statistical effect that also appears in an ideal gas, the physics of Bose­Einstein condensates (BECs, stabilizing a purely dipolar quantum gas. In the case of a homogeneous Bose­Einstein condensate (BECLETTERS Stabilization of a purely dipolar quantum gas against collapse T. KOCH, T. LAHAYE, J. METZ

Loss, Daniel

327

Stability of vortex solitons in a photorefractive optical lattice  

E-Print Network [OSTI]

://www.njp.org/ DOI: 10.1088/1367-2630/6/1/047 Abstract. Stability of on- and off-site vortex solitons with unit stable than off-site ones. Increasing the DC field stabilizes both types of vortex solitons. Contents 1. Introduction 2 2. Off-site vortex solitons 4 3. On-site vortex solitons 9 4. Summary 11 Acknowledgments 11

Yang, Jianke

328

STABILIZING LINEAR MPC WITH EFFICIENT PRIORITIZED INFEASIBILITY HANDLING  

E-Print Network [OSTI]

is illustrated on a simulated distillation column, and we present a novel stability result for this infeasibilitySTABILIZING LINEAR MPC WITH EFFICIENT PRIORITIZED INFEASIBILITY HANDLING Jostein Vada Olav predictive controller fails to compute a control input, all practical MPC implementations should havea means

Foss, Bjarne A.

329

HYBRID SYSTEMS: GENERALIZED SOLUTIONS AND ROBUST STABILITY 1  

E-Print Network [OSTI]

HYBRID SYSTEMS: GENERALIZED SOLUTIONS AND ROBUST STABILITY 1 Rafal Goebel Joao Hespanha Andrew R asymptotic stability for hybrid systems is considered. For this purpose, a generalized solution concept is developed. The first step is to characterize a hybrid time domain that permits an efficient description

Goebel, Rafal

330

Vacuum stability of asymptotically safe gauge-Yukawa theories  

E-Print Network [OSTI]

We study the phase diagram and the stability of the ground state for certain four-dimensional gauge-Yukawa theories whose high-energy behaviour is controlled by an interacting fixed point. We also provide analytical and numerical results for running couplings, their crossover scales, the separatrix, and the Coleman-Weinberg effective potential. Classical and quantum stability of the vacuum is established.

Litim, Daniel F; Sannino, Francesco

2015-01-01T23:59:59.000Z

331

Windows technology assessment  

SciTech Connect (OSTI)

This assessment estimates that energy loss through windows is approximately 15 percent of all the energy used for space heating and cooling in residential and commercial buildings in New York State. The rule of thumb for the nation as a whole is about 25 percent. The difference may reflect a traditional assumption of single-pane windows while this assessment analyzed installed window types in the region. Based on the often-quoted assumption, in the United States some 3.5 quadrillion British thermal units (Btu) of primary energy, costing some $20 billion, is annually consumed as a result of energy lost through windows. According to this assessment, in New York State, the energy lost due to heat loss through windows is approximately 80 trillion Btu at an annual cost of approximately $1 billion.

Baron, J.J.

1995-10-01T23:59:59.000Z

332

Application of diversity to regional ecological assessment: a review with recommendations  

SciTech Connect (OSTI)

Species diversity is frequently considered a primary indicator of ecosystem health, stability, and resilience. As such, species diversity is commonly the major criterion upon which environmental impact statements and ecological assessments are based. This report describes the theoretical development and refinement of the concept of ecological diversity and the various mathematical expressions of diversity. Advantages and disadvantages of each diversity expression are discussed. The application and interpretation of diversity indices for different spatial scales (e.g., specific sites and regional assessments) and variables (e.g., species diversity, habitat diversity, landscape diversity) are contrasted. Recommendations indicate the appropriate diversity indices for regional ecological assessments.

Levenson, J.B.; Stearns, F.W.

1980-03-01T23:59:59.000Z

333

Industrial Assessment Center  

SciTech Connect (OSTI)

Since its inception, the University of Florida Industrial Assessment Center has successfully completed close to 400 energy assessments of small to medium manufacturing facilities in Florida, southern Georgia and southern Alabama. Through these efforts, recommendations were made that would result in savings of about $5 million per year, with an implementation rate of 20-25%. Approximately 80 engineering students have worked for the UF-IAC, at least 10 of whom went on to work in energy related fields after graduation. Additionally, through the popular course in Industrial Energy Management, many students have graduated from the University of Florida with a strong understanding and support of energy conservation methods.

Dr. Diane Schaub

2007-03-05T23:59:59.000Z

334

EA-1207: Final Environmental Assessment  

Broader source: Energy.gov [DOE]

Pit Disassembly and Conversion Demonstration Environmental Assessment and Research and Development Activities

335

University Assessment Contacts Academic Units  

E-Print Network [OSTI]

.j.arp@oregonstate.edu 541-737-2331 Notes: Agricultural and Resource Economics Assessment Rep: Email: Phone: Penelope DiebelUniversity Assessment Contacts Academic Units COLLEGE OF AGRICULTURAL SCIENCES Assessment Rep.Capalbo@oregonstate.edu 541-737-5639 Notes: Agricultural Education and Agricultural Sciences Assessment Rep: Email: Phone

Escher, Christine

336

Stability of eutectic interface during directional solidification  

SciTech Connect (OSTI)

Directional solidification of eutectic alloys shows different types of eutectic morphologies. These include lamellar, rod, oscillating and tilting modes. The growth of these morphologies occurs with a macroscopically planar interface. However, under certain conditions, the planar eutectic front becomes unstable and gives rise to a cellular or a dendritic structure. This instability leads to the cellular/dendritic structure of either a primary phase or a two-phase structure. The objective of this work is to develop a fundamental understanding of the instability of eutectic structure into cellular/dendritic structures of a single phase and of two-phases. Experimental studies have been carried out to examine the transition from a planar to two-phase cellular and dendritic structures in a ceramic system of Alumina-Zirconia (Al{sub 2}O{sub 3}-ZrO{sub 2}) and in a transparent organic system of carbon tetrabromide and hexachloroethane (CBr{sub 4}-C{sub 2}Cl{sub 6}). Several aspects of eutectic interface stability have been examined.

Han, S.H.

1996-04-23T23:59:59.000Z

337

Stability measurements of PPL atmospheric pressure arc  

SciTech Connect (OSTI)

Experiments on the stability of atmospheric pressure arcs have been started at PPL to understand and improve the performance of arc furnaces used for processing applications in metallurgy and hazardous waste treatment. Previous studies have suggested that the violent instabilities in such arcs may be due to kink modes. A 30 kW, 500 Amp CW DC experimental arc furnace was constructed with a graphite cathode and a molten steel anode. The arc plasma is diagnosed with 4000 frames/sec digital camera, Hall probes, and voltage and current monitors. Under certain conditions, the arc exhibits an intermittent helical instability, with the helix rotating at {approx}600 Hz. The nature of the instability is investigated. A possible instability mechanism is the self-magnetic field of the arc, with saturation occurring due to inhomogeneous heating in a helical arc. The effect of external DC and AC magnetic fields on the instability is investigated. Additionally, arc deflection due to external transverse magnetic field is investigated. The deflection angle is found to be proportional to the applied field, and is in good agreement with a simple model of the {rvec J} x {rvec b} force on the arc jet.

Roquemore, L.; Zweben, S.J. [Princeton Plasma Physics Lab., NJ (United States); Wurden, G.A. [Los Alamos National Lab., NM (United States)

1997-12-31T23:59:59.000Z

338

Thermal Stability of Chelated Indium Activable Tracers  

SciTech Connect (OSTI)

The thermal stability of indium tracer chelated with organic ligands ethylenediaminetetraacetic acid (EDTA) and nitrilotriacetic acid (NTA) was measured for reservoir temperatures of 150, 200, and 240 C. Measurements of the soluble indium concentration was made as a function of time by neutron activation analysis. From the data, approximate thermal decomposition rates were estimated. At 150 C, both chelated tracers were stable over the experimental period of 20 days. At 200 C, the InEDTA concentration remained constant for 16 days, after which the thermal decomposition occurred at a measured rate constant of k = 0.09 d{sup -1}. The thermal decomposition of InNTA at 200 C showed a first order reaction with a measured rate constant of k = 0.16 d{sup -1}. At 240 C, both indium chelated tracers showed rapid decomposition with rate constants greater than 1.8 d{sup -1}. The data indicate that for geothermal reservoir with temperatures up to about 200 C, indium chelated tracers can be used effectively for transit times of at least 20 days. These experiments were run without reservoir rock media, and do not account for concomitant loss of indium tracer by adsorption processes.

Chrysikopoulos, Costas; Kruger, Paul

1986-01-21T23:59:59.000Z

339

Ferrocyanide tank waste stability. Supplement 2  

SciTech Connect (OSTI)

Ferrocyanide wastes were generated at the Hanford Site during the mid to late 1950s as a result of efforts to create more tank space for the storage of high-level nuclear waste. The ferrocyanide process was developed to remove {sup 137}CS from existing waste and newly generated waste that resulted from the recovery of valuable uranium in Hanford Site waste tanks. During the course of research associated with the ferrocyanide process, it was recognized that ferrocyanide materials, when mixed with sodium nitrate and/or sodium nitrite, were capable of violent exothermic reaction. This chemical reactivity became an issue in the 1980s, when safety issues associated with the storage of ferrocyanide wastes in Hanford Site tanks became prominent. These safety issues heightened in the late 1980s and led to the current scrutiny of the safety issues associated with these wastes, as well as current research and waste management programs. Testing to provide information on the nature of possible tank reactions is ongoing. This document supplements the information presented in Summary of Single-Shell Tank Waste Stability, WHC-EP-0347, March 1991 (Borsheim and Kirch 1991), which evaluated several issues. This supplement only considers information particular to ferrocyanide wastes.

Fowler, K.D.

1993-01-01T23:59:59.000Z

340

Chemical Stabilization of Hanford Tank Residual Waste  

SciTech Connect (OSTI)

Three different chemical treatment methods were tested for their ability to stabilize residual waste from Hanford tank C-202 for reducing contaminant release (Tc, Cr, and U in particular). The three treatment methods tested were lime addition [Ca(OH)2], an in-situ Ceramicrete waste form based on chemically bonded phosphate ceramics, and a ferrous iron/goethite treatment. These approaches rely on formation of insoluble forms of the contaminants of concern (lime addition and ceramicrete) and chemical reduction followed by co-precipitation (ferrous iron/goethite incorporation treatment). The results have demonstrated that release of the three most significant mobile contaminants of concern from tank residual wastes can be dramatically reduced after treatment compared to contact with simulated grout porewater without treatment. For uranium, all three treatments methods reduced the leachable uranium concentrations by well over three orders of magnitude. In the case of uranium and technetium, released concentrations were well below their respective MCLs for the wastes tested. For tank C-202 residual waste, chromium release concentrations were above the MCL but were considerably reduced relative to untreated tank waste. This innovative approach has the potential to revolutionize Hanford’s tank retrieval process, by allowing larger volumes of residual waste to be left in tanks while providing an acceptably low level of risk with respect to contaminant release that is protective of the environment and human health. Such an approach could enable DOE to realize significant cost savings through streamlined retrieval and closure operations.

Cantrell, Kirk J.; Um, Wooyong; Williams, Benjamin D.; Bowden, Mark E.; Gartman, Brandy N.; Lukens, Wayne W.; Buck, Edgar C.; Mausolf, Edward J.

2014-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "measurement-based stability assessment" 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

Geothermal industry assessment  

SciTech Connect (OSTI)

An assessment of the geothermal industry is presented, focusing on industry structure, corporate activities and strategies, and detailed analysis of the technological, economic, financial, and institutional issues important to government policy formulation. The study is based principally on confidential interviews with executives of 75 companies active in the field. (MHR)

Not Available

1980-07-01T23:59:59.000Z

342

Generating Resourcesg Assessment Methodology  

E-Print Network [OSTI]

Fixed Cost (annual basis) Fuel Price Forecasts Natural gas, coal, oil Transmission, Integration Costs resource assessment informs the resource strategy R t d t h l i Resource types and technologies and information Review draft plan resource assumptions with the Power Committee/Council for approval to use

343

Watershed Assessment Program Team  

E-Print Network [OSTI]

­ Proposal to model urban storm-water control practices · Teach advanced graduate course ­ BASINS and SWAT · Monitoring Activities · Modeling Activities · Remote Sensing / GIS · Sources of Funding · What do We Need · Much more monitoring being done by cities and local governments ­ Source water assessment work done

344

ESPA Deltas: Assessing Health,  

E-Print Network [OSTI]

weather events and sea-level rise, coupled with population growth and urbanisation. The Project The ESPAEcosystems Livelihood Services Poverty Community ESPA Deltas: Assessing Health, Livelihoods www.espadeltas.net@EspaDeltas Who are the poor? Who are the key stakeholders and what are their roles

Sóbester, András

345

Final Draft ENVIRONMENTAL ASSESSMENT  

E-Print Network [OSTI]

the anticipated completion of the Constellation Programmatic Environmental Impact Statement in June 2008Final Draft ENVIRONMENTAL ASSESSMENT FOR THE CONSTRUCTION, MODIFICATION, AND OPERATION OF THREE CENTER, FL 32899 February 2007 #12;THIS PAGE INTENTIONALLY LEFT BLANK #12;FINAL DRAFT DRAFT ENVIRONMENTAL

Waliser, Duane E.

346

Assessments A Training Manual  

E-Print Network [OSTI]

for industrial clients has always been tied to the cost of energy resources. Beginning with the oil embargo the initial investment by the manufacturing concern now makes the full industrial assessment attractive, and indexing the final document took the better part of a year. This investment of time and effort has yielded

347

Graduate Assessment Strategies 1. Sample assessment plans are online at http://inside.mines.edu/Assessment-Resources. The  

E-Print Network [OSTI]

Graduate Assessment Strategies Resources: 1. Sample assessment plans are online at http://inside.mines.edu/Assessment-Resources. The graduate level assessment plans from OSU may be particularly helpful: http://oregonstate.edu/admin/aa/apaa/assessment/graduate-assessment/graduate- assessment-plans 2. A list of best practices is online at http://inside.mines.edu/UserFiles/File/Assessment

348

Fuel traps: mapping stability via water association.  

SciTech Connect (OSTI)

Hydrogen storage is a key enabling technology required for attaining a hydrogen-based economy. Fundamental research can reveal the underlying principles controlling hydrogen uptake and release by storage materials, and also aid in characterizing and designing novel storage materials. New ideas for hydrogen storage materials come from exploiting the properties of hydrophobic hydration, which refers to water s ability to stabilize, by its mode of association, specific structures under specific conditions. Although hydrogen was always considered too small to support the formation of solid clathrate hydrate structures, exciting new experiments show that water traps hydrogen molecules at conditions of low temperatures and moderate pressures. Hydrogen release is accomplished by simple warming. While these experiments lend credibility to the idea that water could form an environmentally attractive alternative storage compound for hydrogen fuel, which would advance our nation s goals of attaining a hydrogen-based economy, much work is yet required to understand and realize the full potential of clathrate hydrates for hydrogen storage. Here we undertake theoretical studies of hydrogen in water to establish a firm foundation for predictive work on clathrate hydrate H{sub 2} storage capabilities. Using molecular simulation and statistical mechanical theories based in part on quantum mechanical descriptions of molecular interactions, we characterize the interactions between hydrogen and liquid water in terms of structural and thermodynamic properties. In the process we validate classical force field models of hydrogen in water and discover new features of hydrophobic hydration that impact problems in both energy technology and biology. Finally, we predict hydrogen occupancy in the small and large cages of hydrogen clathrate hydrates, a property unresolved by previous experimental and theoretical work.

Rempe, Susan L.; Clawson, Jacalyn S.; Greathouse, Jeffery A.; Alam, Todd M; Leung, Kevin; Varma, Sameer; Sabo, Dubravko; Martin, Marcus Gary; Cygan, Randall Timothy

2007-03-01T23:59:59.000Z

349

Roll stabilization for fast monohulls by using passive and active lifting appendages  

E-Print Network [OSTI]

Roll stabilization for monohulls is an important issue in naval architecture. Several methods including roll stabilization tanks, active control fins, rudder roll stabilization systems, and bilge keels are commonly used ...

Ulusoy, Talha

2004-01-01T23:59:59.000Z

350

Short note on the stability of a dilatonic wall  

E-Print Network [OSTI]

A nontopological soliton solution of dilaton-Maxwell theory describes a domain wall-like solution which confines magnetic flux in its core [G.W. Gibbons and C.G. Wells, Class. Quant. Grav. 11, 2499 (1994)]. Since the solution is not stabilized by a nontrivial topology of the vacuum manifold, it is interesting to see if the static solution is stable against small fluctuations. We consider the stability of the solution in response to small fluctuations in the scalar and magnetic fields. It is determined that the ansatz solution does indeed exhibit stability.

J. R. Morris

2014-09-29T23:59:59.000Z

351

Plutonium stabilization and handling quality assurance program plan  

SciTech Connect (OSTI)

This Quality Assurance Program Plan (QAPP) identifies project quality assurance requirements for all contractors involved in the planning and execution of Hanford Site activities for design, procurement, construction, testing and inspection for Project W-460, Plutonium Stabilization and Handling. The project encompasses procurement and installation of a Stabilization and Packaging System (SPS) to oxidize and package for long term storage remaining plutonium-bearing special nuclear materials currently in inventory at the Plutonium Finishing Plant (PFP), and modification of vault equipment to allow storage of resulting packages of stabilized SNM.

Weiss, E.V.

1998-04-22T23:59:59.000Z

352

Containment and stabilization technologies for mixed hazardous and radioactive wastes  

SciTech Connect (OSTI)

A prevalent approach to the cleanup of waste sites contaminated with hazardous chemicals and radionuclides is to contain and/or stabilize wastes within the site. Stabilization involves treating the wastes in some fashion, either in situ or above ground after retrieval, to reduce the leachability and release rate of waste constituents to the environment. This approach is generally reserved for radionuclide contaminants, inorganic hazardous contaminants such as heavy metals, and nonvolatile organic contaminants. This paper describes the recent developments in the technical options available for containing and stabilizing wastes. A brief description of each technology is given along with a discussion of the most recent developments and examples of useful applications.

Buelt, J.L.

1993-05-01T23:59:59.000Z

353

Non-binary Entanglement-assisted Stabilizer Quantum Codes  

E-Print Network [OSTI]

In this paper, we show how to construct non-binary entanglement-assisted stabilizer quantum codes by using pre-shared entanglement between the sender and receiver. We also give an algorithm to determine the circuit for non-binary entanglement-assisted stabilizer quantum codes and some illustrated examples. The codes we constructed do not require the dual-containing constraint, and many non-binary classical codes, like non-binary LDPC codes, which do not satisfy the condition, can be used to construct non-binary entanglement-assisted stabilizer quantum codes.

Leng Riguang; Ma Zhi

2011-05-30T23:59:59.000Z

354

Natural Circulation and Linear Stability Analysis for Liquid-Metal Reactors with the Effect of Fluid Axial Conduction  

SciTech Connect (OSTI)

The effect of fluid axial thermal conduction on one-dimensional liquid metal natural circulation and its linear stability was performed through nondimensional analysis, steady-state assessment, and linear perturbation evaluation. The Nyquist criterion and a root-search method were employed to find the linear stability boundary of both forward and backward circulations. The study provided a relatively complete analysis method for one-dimensional natural circulation problems with the consideration of fluid axial heat conduction. The results suggest that fluid axial heat conduction in a natural circulation loop should be considered only when the modified Peclet number is {approx}1 or less, which is significantly smaller than the practical value of a lead liquid metal-cooled reactor.

Piyush Sabharwall; Qiao Wu; James J. Sienicki

2012-06-01T23:59:59.000Z

355

Engineering solutions to the long-term stabilization and isolation of uranium mill tailings in the United States  

SciTech Connect (OSTI)

Engineering solutions to the safe and environmentally protective disposal and isolation of uranium mill tailings in the US include many factors. Cover design, materials selection, civil engineering, erosive forces, and cost effectiveness are only a few of those factors described in this paper. The systems approach to the engineering solutions employed in the US is described, with emphasis on the standards prescribed for the Uranium Mill Tailings Remedial Action Project. Stabilization and isolation of the tailings from humans and the environment are the primary goals of the US uranium mill tailings control standards. The performance of cover designs with respect to water infiltration, radon exhalation, geotechnical stability, erosion protection, human and animal intrusion prevention, and longevity are addressed. The need for and frequency of surveillance efforts to ensure continued disposal system performance are also assessed.

Sanders, D.R. [Morrison Knudsen Environmental Services, San Francisco, CA (United States). UMTRA Project; Lommler, J.C. [AGRA Earth and Environmental, Inc., Albuquerque, NM (United States). UMTRA Project

1995-03-01T23:59:59.000Z

356

Composite heat damage assessment  

SciTech Connect (OSTI)

The effects of heat damage were determined on the residual mechanical, physical, and chemical properties of IM6/3501-6 laminates, and potential nondestructive techniques to detect and assess material heat damage were evaluated. About one thousand preconditioned specimens were exposed to elevated temperatures, then cooled to room temperature and tested in compression, flexure, interlaminar shear, shore-D hardness, weight loss, and change in thickness. Specimens experienced significant and irreversible reduction in their residual properties when exposed to temperatures exceeding the material upper service temperature of this material (350{degrees}F). The Diffuse Reflectance Infrared Fourier Transform and Laser-Pumped Fluorescence techniques were found to be capable of rapid, in-service, nondestructive detection and quantitation of heat damage in IM6/3501- 6. These techniques also have the potential applicability to detect and assess heat damage effects in other polymer matrix composites.

Janke, C.J.; Wachter, E.A. [Oak Ridge National Lab., TN (United States); Philpot, H.E. [Oak Ridge K-25 Site, TN (United States); Powell, G.L. [Oak Ridge Y-12 Plant, TN (United States)

1993-12-31T23:59:59.000Z

357

PUREX facility hazards assessment  

SciTech Connect (OSTI)

This report documents the hazards assessment for the Plutonium Uranium Extraction Plant (PUREX) located on the US Department of Energy (DOE) Hanford Site. Operation of PUREX is the responsibility of Westinghouse Hanford Company (WHC). This hazards assessment was conducted to provide the emergency planning technical basis for PUREX. DOE Order 5500.3A requires an emergency planning hazards assessment for each facility that has the potential to reach or exceed the lowest level emergency classification. In October of 1990, WHC was directed to place PUREX in standby. In December of 1992 the DOE Assistant Secretary for Environmental Restoration and Waste Management authorized the termination of PUREX and directed DOE-RL to proceed with shutdown planning and terminal clean out activities. Prior to this action, its mission was to reprocess irradiated fuels for the recovery of uranium and plutonium. The present mission is to establish a passively safe and environmentally secure configuration at the PUREX facility and to preserve that condition for 10 years. The ten year time frame represents the typical duration expended to define, authorize and initiate follow-on decommissioning and decontamination activities.

Sutton, L.N.

1994-09-23T23:59:59.000Z

358

Life cycle assessment  

SciTech Connect (OSTI)

Life-Cycle Assessment (LCA) is a technical, data-based and holistic approach to define and subsequently reduce the environmental burdens associated with a product, process, or activity by identifying and quantifying energy and material usage and waste discharges, assessing the impact of those wastes on the environment, and evaluating and implementing opportunities to effect environmental improvements. The assessment includes the entire life-cycle of the product, process or activity encompassing extraction and processing of raw materials, manufacturing, transportation and distribution, use/reuse, recycling and final disposal. LCA is a useful tool for evaluating the environmental consequences of a product, process, or activity, however, current applications of LCA have not been performed in consistent or easily understood ways. This inconsistency has caused increased criticism of LCA. The EPA recognized the need to develop an LCA framework which could be used to provide consistent use across the board. Also, additional research is needed to enhance the understanding about the steps in the performance of an LCA and its appropriate usage. This paper will present the research activities of the EPA leading toward the development of an acceptable method for conducting LCA`s. This research has resulted in the development of two guidance manuals. The first manual is intended to be a practical guide to conducting and interpreting the life-cycle inventory. A nine-step approach to performing a comprehensive inventory is presented along with the general issues to be addressed. The second manual addresses life-cycle design.

Curran, M.A. [Environmental Protection Agency, Cincinnati, OH (United States)

1994-12-31T23:59:59.000Z

359

Waste minimization assessment procedure  

SciTech Connect (OSTI)

Perry Nuclear Power Plant began developing a waste minimization plan early in 1991. In March of 1991 the plan was documented following a similar format to that described in the EPA Waste Minimization Opportunity Assessment Manual. Initial implementation involved obtaining management's commitment to support a waste minimization effort. The primary assessment goal was to identify all hazardous waste streams and to evaluate those streams for minimization opportunities. As implementation of the plan proceeded, non-hazardous waste streams routinely generated in large volumes were also evaluated for minimization opportunities. The next step included collection of process and facility data which would be useful in helping the facility accomplish its assessment goals. This paper describes the resources that were used and which were most valuable in identifying both the hazardous and non-hazardous waste streams that existed on site. For each material identified as a waste stream, additional information regarding the materials use, manufacturer, EPA hazardous waste number and DOT hazard class was also gathered. Once waste streams were evaluated for potential source reduction, recycling, re-use, re-sale, or burning for heat recovery, with disposal as the last viable alternative.

Kellythorne, L.L. (Centerior Energy, Cleveland, OH (United States))

1993-01-01T23:59:59.000Z

360

E-Print Network 3.0 - affect stability binding Sample Search...  

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

stability binding Search Powered by Explorit Topic List Advanced Search Sample search results for: affect stability binding Page: << < 1 2 3 4 5 > >> 1 Chemistry Department 2011...

Note: This page contains sample records for the topic "measurement-based stability assessment" 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

E-Print Network 3.0 - amine light stabilizers Sample Search Results  

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

must be disproportionately stabilized by the amines. Similar azaphilicity of the monomer emerged... and 9) once again revealed the relative stabilization of amine-solvated...

362

E-Print Network 3.0 - atmospheric stability conditions Sample...  

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

wind park model considering atmospheric stability. Wind... : A simple analytical wind park model considering atmospheric stability. Wind Energy, 13, 459-469. 12... : A...

363

Long-Term Stability of Personality: Implications for Behavior  

E-Print Network [OSTI]

R.R. (1994). Set like plaster: Evidence for the stability ofand middle adulthood: Set like plaster or persistent change?personality was ?set like plaster? by age 30 (Costa &McCrae,

Nave, Christopher Scott

2011-01-01T23:59:59.000Z

364

Performance and Stability Analysis of a Shrouded-Fan UAV  

E-Print Network [OSTI]

This paper deals with the estimation of the performance and stability for a shrouded-fan unmanned rotorcraft whose mission profile also prescribes the flight in ground effect. The not so simple estimation of the aerodynamic coefficients and of the thrust in the various situations makes the performance calculation and the stability analysis difficult tasks. This is due to the strong interaction between the fan flow and shroud that causes quite different flow structures about the airframe depending on flight conditions. A further difficulty is related to the ground effect which produces substantial modifications in the rotor thrust and aerodynamic coefficients. To evaluate performance and stability, two models have been developed. One determines the aerodynamic coefficients of the shroud, whereas the other one calculates thrust and moment of the rotors system. Both models take into account the mutual interference between fan flow and fuselage and ground effect. Performance and stability are then discussed with ...

de Divitiis, Nicola

2009-01-01T23:59:59.000Z

365

Stability in the Stefan problem with surface tension (II)  

E-Print Network [OSTI]

This paper has been withdrawn by the authors due to an error in the proof of Lemma 3.9. The correct proof of global stability is given in arXiv:1101.5177

Mahir Hadzic; Yan Guo

2012-12-12T23:59:59.000Z

366

Process for preparing a stabilized coal-water slurry  

DOE Patents [OSTI]

A process is described for preparing a stabilized coal particle suspension which includes the steps of providing an aqueous media substantially free of coal oxidizing constituents, reducing, in a nonoxidizing atmosphere, the particle size of the coal to be suspended to a size sufficiently small to permit suspension thereof in the aqueous media and admixing the coal of reduced particle size with the aqueous media to release into the aqueous media coal stabilizing constituents indigenous to and carried by the reduced coal particles in order to form a stabilized coal particle suspension. The coal stabilizing constituents are effective in a nonoxidizing atmosphere to maintain the coal particle suspension at essentially a neutral or alkaline pH. The coal is ground in a nonoxidizing atmosphere such as an inert gaseous atmosphere to reduce the coal to a sufficient particle size and is admixed with an aqueous media that has been purged of oxygen and acid-forming gases. 2 figs.

Givens, E.N.; Kang, D.

1987-06-23T23:59:59.000Z

367

Stabilized Lithium Metal Powder, Enabling Material and Revolutionary...  

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

-- Washington D.C. es011yakovleva2010o.pdf More Documents & Publications Stabilized Lithium Metal Powder, Enabling Material and Revolutionary Technology for High Energy Li-ion...

368

Stability issues in IC Low Drop Out voltage regulators  

E-Print Network [OSTI]

Performance issues of IC Low Drop Out (LDO) voltage regulators, with specific reference to stability, are discussed in this thesis. Evaluation of existing frequency compensation schemes and their performances across operating loads is presented...

Chava, Krishna Chaitanya

2002-01-01T23:59:59.000Z

369

Stability and quench protection of high-temperature superconductors  

E-Print Network [OSTI]

In the design and operation of a superconducting magnet, stability and protection are two key issues that determine the magnet's reliability and safe operation. Although the high-temperature superconductor (HTS) is considered ...

Ang, Ing Chea

2006-01-01T23:59:59.000Z

370

Irradiation Stability of Carbon Nanotubes and Related Materials  

E-Print Network [OSTI]

defect annealing at elevated irradiation temperatures, which delays the formation of amorphous regions. Investigation of nanotube stability after various processing techniques and irradiation indicated that radiation response of CNTs in a composite...

Aitkaliyeva, Assel 1985-

2012-09-28T23:59:59.000Z

371

Stability of metallic thin film with free electron model  

SciTech Connect (OSTI)

The stability of metallic thin lms is studied with free electron model, which is popularly known as model of \\particle in a box". A detailed theoretical framework is presented, along with discussion on typical metals, such as Pb, Al, Ag, Na, and Be. This simple model is found to be able to describe well the oscillation pattern of stability for continuous metallic lms. In particular, it yields even-odd oscillations in the stability of Pb(111) lm, consistent with both experimental observation and ab initio results. However, the free electron model is too crude to predict at what thickness the lm is stable. The lm stability is further examined with a model of \\particle in a corrugated box", where a lattice potential is added along the vertical direction of the lm. The e ect of lattice potential is found not substantial.

Wu, Biao [ORNL; Zhang, Zhenyu [ORNL

2008-01-01T23:59:59.000Z

372

Theoretical Study of the Structure, Stability and Oxygen Reduction...  

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

stability and catalytic reactivity between ultrathin, 0.5- 1.0 nm diameter, platinum nanotubes and nanowires. Model nanowires were formed by inserting an inner chain of platinum...

373

adduct stabilization: Topics by E-print Network  

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

such as 4-hydroxy-2-nonenal (HNE), 4-oxo-2-nonenal (ONE), malondialdehyde (MDA) or acrolein (ACR) is thought (more) Wu, Jianyong 2010-01-01 13 Stability and Feedback...

374

High capacity stabilized complex hydrides for hydrogen storage  

DOE Patents [OSTI]

Complex hydrides based on Al(BH.sub.4).sub.3 are stabilized by the presence of one or more additional metal elements or organic adducts to provide high capacity hydrogen storage material.

Zidan, Ragaiy; Mohtadi, Rana F; Fewox, Christopher; Sivasubramanian, Premkumar

2014-11-11T23:59:59.000Z

375

STABILITY OF EQUILIBRIA IN ONE DIMENSION FOR DIBLOCK COPOLYMER EQUATION  

E-Print Network [OSTI]

STABILITY OF EQUILIBRIA IN ONE DIMENSION FOR DIBLOCK COPOLYMER EQUATION Olga Stulov Department for numerically. The various sets of the solutions of the linearized model were found by means of software AUTO

Sander, Evelyn

376

Uncertainty in Greenhouse Emissions and Costs of Atmospheric Stabilization  

E-Print Network [OSTI]

We explore the uncertainty in projections of emissions, and costs of atmospheric stabilization applying the MIT Emissions Prediction and Policy Analysis model, a computable general equilibrium model of the global economy. ...

Webster, Mort D.

377

alloys phase stability: Topics by E-print Network  

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

transition i t s e l f is not fully understood for metals, ceramics,glasses -Stability of high temperature f i r e brick. Development of ceramics Morris, Jr., J.W. 2010-01-01 23...

378

alloy phase stability: Topics by E-print Network  

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

transition i t s e l f is not fully understood for metals, ceramics,glasses -Stability of high temperature f i r e brick. Development of ceramics Morris, Jr., J.W. 2010-01-01 23...

379

Quantum Limit on Stability of Clocks in a Gravitational Field  

E-Print Network [OSTI]

Good clocks are of importance both to fundamental physics and for applications in astronomy, metrology and global positioning systems. In a recent technological breakthrough, researchers at NIST have been able to achieve a stability of 1 part in $10^{18}$ using an Ytterbium clock. This naturally raises the question of whether there are fundamental limits to the stability of clocks. In this paper we point out that gravity and quantum mechanics set a fundamental limit on the stability of clocks. This limit comes from a combination of the uncertainty relation, the gravitational redshift and the relativistic time dilation effect. For example, a single ion hydrogen maser clock in a terrestrial gravitational field cannot achieve a stability better than one part in $10^{22}$. This observation has implications for laboratory experiments involving both gravity and quantum theory.

Supurna Sinha; Joseph Samuel

2014-03-21T23:59:59.000Z

380

Quantifying the cost uncertainty of climate stabilization policies  

E-Print Network [OSTI]

Climate change researchers are often asked to evaluate potential economic effects of climate stabilization policies. Policy costs are particularly important because policymakers use a cost/benefit framework to analyze ...

Franck, Travis Read

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "measurement-based stability assessment" 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

Increasing Stability Reduces Conformational Heterogeneity in a Protein Folding  

E-Print Network [OSTI]

Increasing Stability Reduces Conformational Heterogeneity in a Protein Folding Intermediate, the results show that protein folding intermediates are ensembles of different structural forms direct experi- mental evidence in support of a basic tenet of energy landscape theory for protein folding

382

Stabilized Ultrafast Pulse Generation and Optical Frequency Combs Techniques  

E-Print Network [OSTI]

Stabilized Ultrafast Pulse Generation and Optical Frequency Combs ­ Techniques and Applications Diodes ­ Review Ultrafast Dynamics ­ Breathing Mode (Dispersion Managed Cavity) · High Pulse Energy to Make Short Pulses - Review Ultrafast Dynamics- - Dispersion Managed (Breathing Mode) MLL #12

Van Stryland, Eric

383

Energy-Casimir stability of hybrid Vlasov-MHD models  

E-Print Network [OSTI]

Different variants of hybrid kinetic-fluid models are considered for describing the interaction of a bulk fluid plasma obeying MHD and an energetic component obeying a kinetic theory. Upon using the Vlasov kinetic theory for energetic particles, two planar Vlasov-MHD models are compared in terms of their stability properties. This is made possible by the Hamiltonian structures underlying the considered hybrid systems, whose infinite number of invariants makes the energy-Casimir method effective for determining stability. Equilibrium equations for the models are obtained from a variational principle and in particular a generalized hybrid Grad-Shafranov equation follows for one of the considered models. The stability conditions are then derived and discussed with particular emphasis on kinetic particle effects on classical MHD stability.

Cesare Tronci; Emanuele Tassi; Philip J. Morrison

2014-10-07T23:59:59.000Z

384

On the stability of thermonuclear shell sources in stars  

E-Print Network [OSTI]

We present a quantitative criterion for the thermal stability of thermonuclear shell sources. We find the thermal stability of shell sources to depend on exactly three factors: they are more stable when they are geometrically thicker, less degenerate and hotter. This confirms and unifies previously obtained results in terms of the geometry, temperature and density of the shell source, by a simplified but quantitative approach to the physics of shell nuclear burning. We present instability diagrams in the temperature-density plane for hydrogen and helium shell burning, which allow a simple evaluation of the stability conditions of such shell sources in stellar models. The performance of our stability criterion is demonstrated in various numerical models: in a 3 Msun AGB star, in helium accreting CO white dwarfs, in a helium white dwarf which is covered by a thin hydrogen envelope, and in a 1.0 Msun giant.

S. -C. Yoon; N. Langer; M. van der Sluys

2004-06-07T23:59:59.000Z

385

Solidification/stabilization of simulated uranium and nickel contaminated sludges  

E-Print Network [OSTI]

in this research which focused on better understanding the Solidification/Stabilization (S/S) chemistry, complex waste-binder interactions, and the suitability and effectiveness of additives in the Portland cement based treatment systems. The treatability...

Ramabhadran, Sanjay

1996-01-01T23:59:59.000Z

386

Experimental and Computational Studies on Protein Folding, Misfolding and Stability  

E-Print Network [OSTI]

Proteins need fold to perform their biological function. Thus, understanding how proteins fold could be the key to understanding life. In the first study, the stability and structure of several !-hairpin peptide variants derived from the C...

Wei, Yun

2010-07-14T23:59:59.000Z

387

Text-Alternative Version: LED Color Stability Webinar  

Broader source: Energy.gov [DOE]

Michael Royer: All right, welcome ladies and gentleman. I'm Michael Royer of Pacific Northwest National Laboratory, and I'd like to welcome you to today's webinar on LED Color Stability, Ten...

388

Original article Genetic variability and stability of poultry  

E-Print Network [OSTI]

Original article Genetic variability and stability of poultry feeding related characters in wheat the characters affecting poultry feeding, except phosphorus, genotypic effects were highly significant. However content and yield, no antagonism between productivity and poultry feeding related characters appeared

Paris-Sud XI, Université de

389

Architecture and evolutionary stability of yeast signaling pathways  

E-Print Network [OSTI]

I have researched the effect that selection for the function of the High Osmolarity Glycerol (HOG) pathway has on the evolutionary stability of the pheromone response pathway in the yeast Saccharomyces cerevisiae. I first ...

Gritton, Jeffrey S

2006-01-01T23:59:59.000Z

390

Selection of variables for stabilizing control using pole Kjetil Havre  

E-Print Network [OSTI]

for stabilizing control in order to minimize input usage? 1 #12;E G(s) Eu1 E um Ey1 E yl c yk c'nk'Kjk(s) - uj

Skogestad, Sigurd

391

Frequency stabilization for a 486nm dye-ring laser  

E-Print Network [OSTI]

For my thesis, I worked towards using two reference cavities to provide frequency stabilization to a 486nm dye-ring laser. After a doubling cavity doubles the frequency to 243nm, the laser beam is used to excite ground ...

Sievers, Charles A. (Charles Anders), 1979-

2004-01-01T23:59:59.000Z

392

Process for preparing a stabilized coal-water slurry  

DOE Patents [OSTI]

A process for preparing a stabilized coal particle suspension which includes the steps of providing an aqueous media substantially free of coal oxidizing constituents, reducing, in a nonoxidizing atmosphere, the particle size of the coal to be suspended to a size sufficiently small to permit suspension thereof in the aqueous media and admixing the coal of reduced particle size with the aqueous media to release into the aqueous media coal stabilizing constituents indigenous to and carried by the reduced coal particles in order to form a stabilized coal particle suspension. The coal stabilizing constituents are effective in a nonoxidizing atmosphere to maintain the coal particle suspension at essentially a neutral or alkaline pH. The coal is ground in a nonoxidizing atmosphere such as an inert gaseous atmosphere to reduce the coal to a sufficient particle size and is admixed with an aqueous media that has been purged of oxygen and acid-forming gases.

Givens, Edwin N. (Bethlehem, PA); Kang, Doohee (Macungie, PA)

1987-01-01T23:59:59.000Z

393

Fiber optically isolated and remotely stabilized data transmission system  

DOE Patents [OSTI]

A fiber optically isolated and remotely stabilized data transmission systems described wherein optical data may be transmitted over an optical data fiber from a remote source which includes a data transmitter and a power supply at the remote source. The transmitter may be remotely calibrated and stabilized via an optical control fiber, and the power source may be remotely cycled between duty and standby modes via an optical control fiber. 3 figs.

Nelson, M.A.

1992-11-10T23:59:59.000Z

394

CO2 stabilization, climate change and the terrestrial carbon sink  

E-Print Network [OSTI]

CO2 stabilization, climate change and the terrestrial carbon sink A N D R E W W H I T E , * M E L V, Hybrid v4.1, with a subdaily timestep, was driven by increasing CO2 and transient climate output from scenarios were used: (i) IS92a, giving 790 ppm CO2 by 2100, (ii) CO2 stabilization at 750 ppm by 2225

White, Andrew

395

Single-shell tank interim stabilization project plan  

SciTech Connect (OSTI)

Solid and liquid radioactive waste continues to be stored in 149 single-shell tanks at the Hanford Site. To date, 119 tanks have had most of the pumpable liquid removed by interim stabilization. Thirty tanks remain to be stabilized. One of these tanks (C-106) will be stabilized by retrieval of the tank contents. The remaining 29 tanks will be interim stabilized by saltwell pumping. In the summer of 1997, the US Department of Energy (DOE) placed a moratorium on the startup of additional saltwell pumping systems because of funding constraints and proposed modifications to the Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement) milestones to the Washington State Department of Ecology (Ecology). In a letter dated February 10, 1998, Final Determination Pursuant to Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement) in the Matter of the Disapproval of the DOE`s Change Control Form M-41-97-01 (Fitzsimmons 1998), Ecology disapproved the DOE Change Control Form M-41-97-01. In response, Fluor Daniel Hanford, Inc. (FDH) directed Lockheed Martin Hanford Corporation (LNMC) to initiate development of a project plan in a letter dated February 25, 1998, Direction for Development of an Aggressive Single-Shell Tank (SST) Interim Stabilization Completion Project Plan in Support of Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement). In a letter dated March 2, 1998, Request for an Aggressive Single-Shell Tank (SST) Interim Stabilization Completion Project Plan, the DOE reaffirmed the need for an aggressive SST interim stabilization completion project plan to support a finalized Tri-Party Agreement Milestone M-41 recovery plan. This project plan establishes the management framework for conduct of the TWRS Single-Shell Tank Interim Stabilization completion program. Specifically, this plan defines the mission needs and requirements; technical objectives and approach; organizational structure, roles, responsibilities, and interfaces; and operational methods. The plan is based on realistic assumptions and addresses three separate funding scenarios.

Ross, W.E.

1998-03-27T23:59:59.000Z

396

The effect of neutralization on compressive strength of stabilized phosphogypsum  

E-Print Network [OSTI]

is not homogeneously distributed among the solids in phosphcgypsum, neutralization curves were not reproducible. Moreover, the time required to achieve equilibrium pH depends on the type and amount of neutralizer. For portland cement stabilized phosphogypsum..., it was found that during initial stages of strength development (3 days) in partly and fully neutralized phosphogypsum and with low amounts of stabilizers (3 and 6 percent portland cement) after curing for 7 and 28 days the type of alkali has no significant...

Yung, Chung Che

1985-01-01T23:59:59.000Z

397

Thermodynamic stability of recoding RNA pseudoknots and ribosomal frameshifting  

E-Print Network [OSTI]

THERMODYNAMIC STABILITY OF RECODING RNA PSEUDOKNOTS AND RIBOSOMAL FRAMESHIFTING A Senior Honors Thesis by BRIAN RAY CANNON Submitted to the Office of Honors Progrmas & Academic Scholarships Texas A&M University in partial fulfillment... for the designation of UNIVERSITY UNDERGRADUATE RESEARCH FELLOW April 2001 Group: Biochemistry THERMODYNAMIC STABILITY OF RECODING RNA PSEUDOKNOTS AND RIBOSOMAL FRAMESHIFTING A Senior Honors Thesis by BRIAN RAY CANNON Submitted to the Office of Honors...

Cannon, Brian Ray

2013-02-22T23:59:59.000Z

398

Clustered Error Correction of Codeword-Stabilized Quantum Codes  

E-Print Network [OSTI]

Codeword stabilized (CWS) codes are a general class of quantum codes that includes stabilizer codes and many families of non-additive codes with good parameters. For such a non-additive code correcting all t-qubit errors, we propose an algorithm that employs a single measurement to test all errors located on a given set of t qubits. Compared with exhaustive error screening, this reduces the total number of measurements required for error recovery by a factor of about 3^t.

Yunfan Li; Ilya Dumer; Leonid P. Pryadko

2010-03-08T23:59:59.000Z

399

Stability of drift waves with the integral eigenmode equation  

SciTech Connect (OSTI)

An analytical theory on the stability properties of drift-wave eigenmodes in a slab plasma with finite magnetic shear is presented. The corresponding eigenmode equation is the integral equation first given by Coppi, Rosenbluth, and Sagdeev (1967) and rederived here, in a relatively simpler fashion, via the gyrokinetic equation. It is then proved that the universal drift-wave eigenmodes remain absolutely stable and finite electron temperature gradients do not alter the stability.

Chen, L.; Ke, F.J.; Xu, M.J.; Tsai, S.T.; Lee, Y.C.; Antonsen, T.M. Jr.

1981-11-01T23:59:59.000Z

400

Standards and Conformity Assessment Training  

E-Print Network [OSTI]

Standards and Conformity Assessment Training Workshops for Government Agencies Fundamentals of Standards and Conformity Assessment Training for all levels of government NIST offers interactive workshops and seminars for federal, state, and local government agencies on the fundamentals of standards, conformity

Note: This page contains sample records for the topic "measurement-based stability assessment" 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

Model Fire Protection Assessment Guide  

Broader source: Energy.gov [DOE]

This Assessment guide covers the implementation of the DOE's responsibility of assuring that DOE and the DOE Contractors have established Fire Protection Programs that are at the level required for the area being assessed.

402

Uncertainties in energy technology assessments  

E-Print Network [OSTI]

In order to make important contributions, energy technology assessments must be large, interdisciplinary projects, generally becoming very time consuming and expensive. This small project does not involve a large assessment, ...

Coate, David

1980-01-01T23:59:59.000Z

403

Dual Rater Competency Assessment FAQ  

Broader source: Energy.gov [DOE]

The purpose of the dual rater competency assessment is to provide a clearer picture of the individual’s developmental needs by combining self-assessment and supervisory input. Together, these two...

404

A 3D approach to equilibrium, stability and transport studies in RFX-mod improved regimes  

SciTech Connect (OSTI)

The full three-dimensional (3D) approach is now becoming an important issue for all magnetic confinement configurations. It is a necessary condition for the stellarator but also the tokamak and the reversed field pinch (RFP) now cannot be completely described in an axisymmetric framework. For the RFP the observation of self-sustained helical configurations with improved plasma performances require a better description in order to assess a new view on this configuration. In this new framework plasma configuration studies for RFX-mod have been considered both with tools developed for the RFP as well as considering codes originally developed for the stellarator and adapted to the RFP. These helical states are reached through a transition to a very low/reversed shear configuration leading to internal electron transport barriers. These states are interrupted by MHD reconnection events and the large T(e) gradients at the barriers indicate that both current and pressure driven modes are to be considered. Furthermore the typically flat T(e) profiles in the helical core have raised the issue of the role of electrostatic and electromagnetic turbulence in these reduced chaos regions, so that a stability analysis in the correct 3D geometry is required to address an optimization of the plasma setup. In this view the VMEC code proved to be an effective way to obtain helical equilibria to be studied in terms of stability and transport with a suite of well tested codes. In this work, the equilibrium reconstruction technique as well as the experimental evidence of 3D effects and their first interpretation in terms of stability and transport are presented using both RFP and stellarator tools.

Terranova, D. [Association Euratom ENEA Fusion, Consorzio RFX, Padua; Bonfiglio, D. [Association Euratom ENEA Fusion, Consorzio RFX, Padua; Boozer, A. H. [Columbia University; Cooper, W Anthony [CRPP/EPFL, Association Euratom-Suisse, Lausanne, Switzerland; Gobbin, M. [Association Euratom ENEA Fusion, Consorzio RFX, Padua; Hirshman, Steven Paul [ORNL; Lorenzini, R. [Association Euratom ENEA Fusion, Consorzio RFX, Padua; Marrelli, L. [Association Euratom ENEA Fusion, Consorzio RFX, Padua; Martines, E. [RFX, Padova, Italy; Momo, B. [RFX, Padova, Italy; Pomphrey, N. [Princeton Plasma Physics Laboratory (PPPL); Predebon, I. [RFX, Padova, Italy; Sanchez, Raul [ORNL; Spizzo, G. [Association Euratom ENEA Fusion, Consorzio RFX, Padua; Agnostini, M. [Association Euratom ENEA Fusion, Consorzio RFX, Padua; Alfier, A. [Association Euratom ENEA Fusion, Consorzio RFX, Padua; Apolloni, L. [Association Euratom ENEA Fusion, Consorzio RFX, Padua; Auriemma, F. [Association Euratom ENEA Fusion, Consorzio RFX, Padua; Baruzzo, M. [Association Euratom ENEA Fusion, Consorzio RFX, Padua; Bolzonella, T. [Association Euratom ENEA Fusion, Consorzio RFX, Padua; Bonomo, F. [Consorzio RFX, Italy; Brombin, M. [Association Euratom ENEA Fusion, Consorzio RFX, Padua; Canton, A. [Association Euratom ENEA Fusion, Consorzio RFX, Padua; Cappello, S. [Association Euratom ENEA Fusion, Consorzio RFX, Padua; Carraro, L. [Association Euratom ENEA Fusion, Consorzio RFX, Padua

2010-01-01T23:59:59.000Z

405

Selective Electrocatalytic Activity of Ligand Stabilized Copper Oxide Nanoparticles  

SciTech Connect (OSTI)

Ligand stabilization can influence the surface chemistry of Cu oxide nanoparticles (NPs) and provide unique product distributions for electrocatalytic methanol (MeOH) oxidation and CO{sub 2} reduction reactions. Oleic acid (OA) stabilized Cu{sub 2}O and CuO NPs promote the MeOH oxidation reaction with 88% and 99.97% selective HCOH formation, respectively. Alternatively, CO{sub 2} is the only reaction product detected for bulk Cu oxides and Cu oxide NPs with no ligands or weakly interacting ligands. We also demonstrate that OA stabilized Cu oxide NPs can reduce CO{sub 2} into CO with a {approx}1.7-fold increase in CO/H{sub 2} production ratios compared to bulk Cu oxides. The OA stabilized Cu oxide NPs also show 7.6 and 9.1-fold increases in CO/H{sub 2} production ratios compared to weakly stabilized and non-stabilized Cu oxide NPs, respectively. Our data illustrates that the presence and type of surface ligand can substantially influence the catalytic product selectivity of Cu oxide NPs.

Kauffman, Douglas R.; Ohodnicki, Paul R.; Kail, Brian W; Matranga, Christopher

2011-01-01T23:59:59.000Z

406

Stabilization of Fast Pyrolysis Oil: Post Processing Final Report  

SciTech Connect (OSTI)

UOP LLC, a Honeywell Company, assembled a comprehensive team for a two-year project to demonstrate innovative methods for the stabilization of pyrolysis oil in accordance with DOE Funding Opportunity Announcement (FOA) DE-PS36-08GO98018, Biomass Fast Pyrolysis Oil (Bio-oil) Stabilization. In collaboration with NREL, PNNL, the USDA Agricultural Research Service (ARS), Pall Fuels and Chemicals, and Ensyn Corporation, UOP developed solutions to the key technical challenges outlined in the FOA. The UOP team proposed a multi-track technical approach for pyrolysis oil stabilization. Conceptually, methods for pyrolysis oil stabilization can be employed during one or both of two stages: (1) during the pyrolysis process (In Process); or (2) after condensation of the resulting vapor (Post-Process). Stabilization methods fall into two distinct classes: those that modify the chemical composition of the pyrolysis oil, making it less reactive; and those that remove destabilizing components from the pyrolysis oil. During the project, the team investigated methods from both classes that were suitable for application in each stage of the pyrolysis process. The post processing stabilization effort performed at PNNL is described in this report. The effort reported here was performed under a CRADA between PNNL and UOP, which was effective on March 13, 2009, for 2 years and was subsequently modified March 8, 2011, to extend the term to December 31, 2011.

Elliott, Douglas C.; Lee, Suh-Jane; Hart, Todd R.

2012-03-01T23:59:59.000Z

407

DOE limited standard: Operations assessments  

SciTech Connect (OSTI)

Purpose of this standard is to provide DOE Field Element assessors with a guide for conducting operations assessments, and provide DOE Field Element managers with the criteria of the EM Operations Assessment Program. Sections 6.1 to 6.21 provide examples of how to assess specific areas; the general techniques of operations assessments (Section 5) may be applied to other areas of health and safety (e.g. fire protection, criticality safety, quality assurance, occupational safety, etc.).

NONE

1996-05-01T23:59:59.000Z

408

ORISE: Radiological program assessment services  

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

Environmental monitoring programs Operational environments Decontamination and decommissioning projects Compliance assessments Radiological release programs ORISE is actively...

409

Energy and environmental research emphasizing low-rank coal -- Task 5.1, Stability issues  

SciTech Connect (OSTI)

Low-sulfur subbituminous and lignite coals have high moisture content and, consequently, low heating value, leading to boiler derating in US midwestern and eastern utilities as well as switching and/or blending coals to achieve SO{sub 2} compliance. In the drive to develop cost-effective coal-drying processes, coal developers have focused on heat content of the products and generally neglected the critical stability issues of friability and dusting, moisture reabsorption, and spontaneous heating. The Energy and Environmental Research Center (EERC), in an effort to establish new standards for dried products, has used established methods and has developed new ones to evaluate the propensity of lump western coals, raw and dried, to produce dust and absorb water. Three drying methods--air, hydrothermal, and saturated steam--were used to generate low-moisture upgraded products. New indices for dust generation and friability were determined to assess the effects of moisture removal and upgrading methodology on coal stability. Analysis of the dried coals using various strength tests indicated that the reduction in moisture made the lump coal unstable, yielding substantially higher dust and friability indices relative to those of the raw coals.

Anderson, C.M.; Musich, M.A.; Dewall, R.A.; Richter, J.J.

1995-04-01T23:59:59.000Z

410

RCP4.5: A Pathway for Stabilization of Radiative Forcing by 2100  

SciTech Connect (OSTI)

Representative Concentration Pathway (RCP) 4.5 is a scenario that stabilizes radiative forcing at 4.5 W m{sup -2} in the year 2100 without ever exceeding that value. Simulated with the Global Change Assessment Model (GCAM), RCP4.5 includes long-term, global emissions of greenhouse gases, short-lived species, and land-use-land-cover in a global economic framework. RCP4.5 was updated from earlier GCAM scenarios to incorporate historical emissions and land cover information common to the RCP process and follows a cost-minimizing pathway to reach the target radiative forcing. The imperative to limit emissions in order to reach this target drives changes in the energy system, including shifts to electricity, to lower emissions energy technologies and to the deployment of carbon capture and geologic storage technology. In addition, the RCP4.5 emissions price also applies to land use emissions; as a result, forest lands expand from their present day extent. The simulated future emissions and land use were downscaled from the regional simulation to a grid to facilitate transfer to climate models. While there are many alternative pathways to achieve a radiative forcing level of 4.5 W m{sup -2}, the application of the RCP4.5 provides a common platform for climate models to explore the climate system response to stabilizing the anthropogenic components of radiative forcing.

Thomson, Allison M.; Calvin, Katherine V.; Smith, Steven J.; Kyle, G. Page; Volke, April C.; Patel, Pralit L.; Delgado Arias, Sabrina; Bond-Lamberty, Benjamin; Wise, Marshall A.; Clarke, Leon E.; Edmonds, James A.

2011-07-29T23:59:59.000Z

411

Discrete-time stabilization of integrators in cascade: Real-time stabilization of a mini-rotorcraft  

E-Print Network [OSTI]

and Saberi proposed in [3] a linear controller that achieves semi-global stabilization for null controllable parameters generally depend only on the upper bound of the initial state. Lin and Saberi [4] proposed a semi

Sontag, Eduardo

412

"" EPAT# Risk Assessments Environmental Impact  

E-Print Network [OSTI]

"" EPAT# Risk Assessments Appendixes Environmental Impact Statement NESHAPS for Radionuclides for Hazardous Air Pollutants Risk Assessments Environmental Impact Statement for NESHAPS Radionuclides VOLUME 2 for Hazardous Air Pollutants EPA 520.1'1.-89-006,-2 Risk Assessments Environmental Impact Statement for NESHAPS

413

Assessment of Demand Response Resource  

E-Print Network [OSTI]

Assessment of Demand Response Resource Potentials for PGE and Pacific Power Prepared for: Portland January 15, 2004 K:\\Projects\\2003-53 (PGE,PC) Assess Demand Response\\Report\\Revised Report_011504.doc #12;#12;quantec Assessment of Demand Response Resource Potentials for I-1 PGE and Pacific Power I. Introduction

414

Assessor Training NVLAP Assessment Forms  

E-Print Network [OSTI]

NVLAP Assessor Training NVLAP Assessment Forms #12;Assessor Training 2009: NVLAP Assessment Forms 2 Summary ·Test Method Review Summary ·ProgramSpecific Checklists Examples #12;Assessor Training 2009: NVLAP are completed · Assessor Names, Dates, Lab Code #12;Assessor Training 2009: NVLAP Assessment Forms 4 NIST

415

A framework for combining social impact assessment and risk assessment  

SciTech Connect (OSTI)

An increasing focus on integrative approaches is one of the current trends in impact assessment. There is potential to combine impact assessment with various other forms of assessment, such as risk assessment, to make impact assessment and the management of social risks more effective. We identify the common features of social impact assessment (SIA) and social risk assessment (SRA), and discuss the merits of a combined approach. A hybrid model combining SIA and SRA to form a new approach called, ‘risk and social impact assessment’ (RSIA) is introduced. RSIA expands the capacity of SIA to evaluate and manage the social impacts of risky projects such as nuclear energy as well as natural hazards and disasters such as droughts and floods. We outline the three stages of RSIA, namely: impact identification, impact assessment, and impact management. -- Highlights: • A hybrid model to combine SIA and SRA namely RSIA is proposed. • RSIA can provide the proper mechanism to assess social impacts of natural hazards. • RSIA can play the role of ex-post as well as ex-ante assessment. • For some complicated and sensitive cases like nuclear energy, conducting a RSIA is necessary.

Mahmoudi, Hossein, E-mail: mahmoudi@uni-hohenheim.de [Department of Social Sciences in Agriculture, University of Hohenheim (Germany) [Department of Social Sciences in Agriculture, University of Hohenheim (Germany); Environmental Sciences Research Institute, Shahid Beheshti University, G.C. (Iran, Islamic Republic of); Renn, Ortwin [Department of Technology and Environmental Sociology (and DIALOGIK), University of Stuttgart (Germany)] [Department of Technology and Environmental Sociology (and DIALOGIK), University of Stuttgart (Germany); Vanclay, Frank [Department of Cultural Geography, Faculty of Spatial Sciences, University of Groningen, Groningen (Netherlands)] [Department of Cultural Geography, Faculty of Spatial Sciences, University of Groningen, Groningen (Netherlands); Hoffmann, Volker [Department of Social Sciences in Agriculture, University of Hohenheim (Germany)] [Department of Social Sciences in Agriculture, University of Hohenheim (Germany); Karami, Ezatollah [College of Agriculture, Shiraz University, Shiraz (Iran, Islamic Republic of)] [College of Agriculture, Shiraz University, Shiraz (Iran, Islamic Republic of)

2013-11-15T23:59:59.000Z

416

Utility of Social Modeling for Proliferation Assessment - Preliminary Assessment  

SciTech Connect (OSTI)

This Preliminary Assessment draft report will present the results of a literature search and preliminary assessment of the body of research, analysis methods, models and data deemed to be relevant to the Utility of Social Modeling for Proliferation Assessment research. This report will provide: 1) a description of the problem space and the kinds of information pertinent to the problem space, 2) a discussion of key relevant or representative literature, 3) a discussion of models and modeling approaches judged to be potentially useful to the research, and 4) the next steps of this research that will be pursued based on this preliminary assessment. This draft report represents a technical deliverable for the NA-22 Simulations, Algorithms, and Modeling (SAM) program. Specifically this draft report is the Task 1 deliverable for project PL09-UtilSocial-PD06, Utility of Social Modeling for Proliferation Assessment. This project investigates non-traditional use of social and cultural information to improve nuclear proliferation assessment, including nonproliferation assessment, proliferation resistance assessments, safeguards assessments and other related studies. These assessments often use and create technical information about the State’s posture towards proliferation, the vulnerability of a nuclear energy system to an undesired event, and the effectiveness of safeguards. This project will find and fuse social and technical information by explicitly considering the role of cultural, social and behavioral factors relevant to proliferation. The aim of this research is to describe and demonstrate if and how social science modeling has utility in proliferation assessment.

Coles, Garill A.; Gastelum, Zoe N.; Brothers, Alan J.; Thompson, Sandra E.

2009-06-01T23:59:59.000Z

417

Integrated Assessment Modeling  

SciTech Connect (OSTI)

This paper discusses the role of Integrated Assessment models (IAMs) in climate change research. IAMs are an interdisciplinary research platform, which constitutes a consistent scientific framework in which the large-scale interactions between human and natural Earth systems can be examined. In so doing, IAMs provide insights that would otherwise be unavailable from traditional single-discipline research. By providing a broader view of the issue, IAMs constitute an important tool for decision support. IAMs are also a home of human Earth system research and provide natural Earth system scientists information about the nature of human intervention in global biogeophysical and geochemical processes.

Edmonds, James A.; Calvin, Katherine V.; Clarke, Leon E.; Janetos, Anthony C.; Kim, Son H.; Wise, Marshall A.; McJeon, Haewon C.

2012-10-31T23:59:59.000Z

418

Risk Identification and Assessment  

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 DepartmentRio GrandeAssessmentRisk

419

1986 Cogeneration Market Assessment  

E-Print Network [OSTI]

implementation path such as changing energy general direction. prices, tax laws, FERC decisions, avoided costs, permitting etc., the cogeneration industry is What's missing is usually the meaning of th still strong. market assessment to the end user... If there was an answer to all these questi s cost savings. These savings can enable him to once and for all and if none of these remain competitive in the face of severe influencing factors would change, wouldn't 1ife world-wide competition. be simple. Benefits...

Wallace, D. G.

420

REVIEWING PERFORMANCE ASSESSMENTS SUPPORTING  

E-Print Network [OSTI]

Purpose: To summarize current NRC policy and guidance, which should assist in making informed decisions regarding land disposal of unique low-level radioactive waste streams, including disposal of significant quantities of depleted uranium until a new regulation is implemented. Background: In September 2009, NRC staff conducted two public workshops soliciting early public input on major issues associated with a potential rulemaking for land disposal of unique waste streams including, but not limited to, significant quantities of depleted uranium. During these workshops, a number of stakeholders expressed interest or concern with the review of performance assessments supporting land disposal of unique waste streams prior to completion of the rulemaking process. Discussion: The enclosure contains a summary of existing guidance for reviewing performance assessments with a focus on issues associated with the safe disposal of unique waste streams. NRC staff is providing this guidance to the Agreement States for their information, and for distribution to their licensees, as appropriate. If you have any questions regarding this correspondence, please contact me at 301-415-3340 or the individuals named below.

Robert J. Lewis

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "measurement-based stability assessment" 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

Wind Resource Assessment in Europe Using Emergy  

E-Print Network [OSTI]

energy in Vietnam: Resource assessment, development statusWind Resource Assessment in Europe Using Emergy Subodhspeed). Keywords: Wind resource assessment; Emergy Analysis;

Paudel, Subodh; Santarelli, Massimo; Martin, Viktoria; Lacarriere, Bruno; Le Corre, Olivier

2014-01-01T23:59:59.000Z

422

Perceptual quality assessment for compressed video  

E-Print Network [OSTI]

Overview of Video Quality Assessment . . . . . . . . . . . .2.3.1 Subjective Video Quality Assessment . . . . . . . .2.3.2 Objective Video Quality Assessment . . . . . . . . .

Yang, Kai-Chieh

2007-01-01T23:59:59.000Z

423

Hanford Needs Assessment | Department of Energy  

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

Needs Assessment Hanford Needs Assessment October 1997 This Needs Assessment for former Hanford production workers was developed for the purpose of collecting existing information...

424

Radionuclide release rates from spent fuel for performance assessment modeling  

SciTech Connect (OSTI)

In a scenario of aqueous transport from a high-level radioactive waste repository, the concentration of radionuclides in water in contact with the waste constitutes the source term for transport models, and as such represents a fundamental component of all performance assessment models. Many laboratory experiments have been done to characterize release rates and understand processes influencing radionuclide release rates from irradiated nuclear fuel. Natural analogues of these waste forms have been studied to obtain information regarding the long-term stability of potential waste forms in complex natural systems. This information from diverse sources must be brought together to develop and defend methods used to define source terms for performance assessment models. In this manuscript examples of measures of radionuclide release rates from spent nuclear fuel or analogues of nuclear fuel are presented. Each example represents a very different approach to obtaining a numerical measure and each has its limitations. There is no way to obtain an unambiguous measure of this or any parameter used in performance assessment codes for evaluating the effects of processes operative over many millennia. The examples are intended to suggest by example that in the absence of the ability to evaluate accuracy and precision, consistency of a broadly based set of data can be used as circumstantial evidence to defend the choice of parameters used in performance assessments.

Curtis, D.B.

1994-11-01T23:59:59.000Z

425

Stability of Bulk Metallic Glass Structure. Final Report  

SciTech Connect (OSTI)

The fundamental origins of the stability of the (Pd-Ni){sub 80}P{sub 20} bulk metallic glasses (BMGs), a prototype for a whole class of BMG formers, were explored. While much of the properties of their BMGs have been characterized, their glass-stability have not been explained in terms of the atomic and electronic structure. The local structure around all three constituent atoms was obtained, in a complementary way, using extended X-ray absorption fine structure (EXAFS), to probe the nearest neighbor environment of the metals, and extended energy loss fine structure (EXELFS), to investigate the environment around P. The occupied electronic structure was investigated using X-ray photoelectron spectroscopy (XPS). The (Pd-Ni){sub 80}P{sub 20} BMGs receive their stability from cumulative, and interrelated, effects of both atomic and electronic origin. The stability of the (Pd-Ni){sub 80}P{sub 20} BMGs can be explained in terms of the stability of Pd{sub 60}Ni{sub 20}P{sub 20} and Pd{sub 30}Ni{sub 50}P{sub 20}, glasses at the end of BMG formation. The atomic structure in these alloys is very similar to those of the binary phosphide crystals near x=0 and x=80, which are trigonal prisms of Pd or Ni atoms surrounding P atoms. Such structures are known to exist in dense, randomly-packed systems. The structure of the best glass former in this series, Pd{sub 40}Ni{sub 40}P{sub 20} is further described by a weighted average of those of Pd{sub 30}Ni{sub 50}P{sub 20} and Pd{sub 60}Ni{sub 20}P{sub 20}. Bonding states present only in the ternary alloys were found and point to a further stabilization of the system through a negative heat of mixing between Pd and Ni atoms. The Nagel and Tauc criterion, correlating a decrease in the density of states at the Fermi level with an increase in the glass stability, was consistent with greater stability of the Pd{sub x}Ni{sub 80-x}P{sub 20} glasses with respect to the binary alloys of P. A valence electron concentration of 1.8 e/a, which ensures the superpositioning of the first peak in the structure factor with twice the Fermi momentum, was used to calculate the interatomic potential of these alloys. The importance of Pd to the stability of the alloys is evidenced by the fact that replacing Ni and Pd places the nearest neighbor distances at more attractive positions in this potential.

Jain, H.; Williams, D. B.

2003-06-01T23:59:59.000Z

426

ON THE STABILITY OF SUPER-EARTH ATMOSPHERES  

SciTech Connect (OSTI)

We investigate the stability of super-Earth atmospheres around M stars using a seven-parameter, analytical framework. We construct stability diagrams in the parameter space of exoplanetary radius versus semimajor axis and elucidate the regions in which the atmospheres are stable against the condensation of their major constituents, out of the gas phase, on their permanent nightside hemispheres. We find that super-Earth atmospheres that are nitrogen-dominated (Earth-like) occupy a smaller region of allowed parameter space, compared to hydrogen-dominated atmospheres, because of the dual effects of diminished advection and enhanced radiative cooling. Furthermore, some super-Earths which reside within the habitable zones of M stars may not possess stable atmospheres, depending on the mean molecular weight and infrared photospheric pressure of their atmospheres. We apply our stability diagrams to GJ 436b and GJ 1214b, and demonstrate that atmospheric compositions with high mean molecular weights are disfavored if these exoplanets possess solid surfaces and shallow atmospheres. Finally, we construct stability diagrams tailored to the Kepler data set, for G and K stars, and predict that about half of the exoplanet candidates are expected to harbor stable atmospheres if Earth-like conditions are assumed. We include 55 Cancri e and CoRoT-7b in our stability diagram for G stars.

Heng, Kevin [ETH Zuerich, Institute for Astronomy, Wolfgang-Pauli-Strasse 27, CH-8093, Zuerich (Switzerland); Kopparla, Pushkar [ETH Zuerich, Institute for Atmospheric and Climate Science, Universitaetstrasse 16, CH-8092, Zuerich (Switzerland)

2012-07-20T23:59:59.000Z

427

Dielectric recombination and stability of warm gas in AGN  

SciTech Connect (OSTI)

High resolution ultraviolet and X-ray spectra show that material outflow occur from the close neighbourhoods of super-massive black holes in active galactic nuclei (AGN). The absorption features seen in the high resolution soft X-ray spectra is attributed to gas which is conventionally termed as the warm absorber (WA) and often the thermal equilibrium (stability) curve is used as a theoretical tool to offer insights into the nature of the WA. The shape of the stability curve is determined by factors like the spectral energy distribution of the ionizing flux and the chemical composition of the absorbing gas. We found that the stability curves obtained under the same set of assumptions for the prevalent physical conditions in the AGN environment, but using recently derived dielectronic recombination rates, give significantly different results from what is predicted with older atomic data. The variations in phase space region of the stability curves corresponding to WAs, lead to different physical predictions. The results obtained with the current dielectronic recombination rate coefficients are more reliable because the WA models along the stability curve have computed, updated coefficient values.

Chakravorty, Susmita; Kembhavi, Ajit K.; Elvis, Martin; Ferland, Gary; Badnell, N. R. [Harvard College Observatory, Cambridge, MA 02138 (United States); IUCAA, Post Bag 4, Ganeshkhind, Pune 411 007 (India); Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States); Department of Physics and Astronomy, University of Kentucky, Lexington, KY 40506 (United States); Department of Physics, University of Strathclyde, Glasgow G4 0NG (United Kingdom)

2012-05-25T23:59:59.000Z

428

NATURAL RESOURCES ASSESSMENT  

SciTech Connect (OSTI)

The purpose of this report is to summarize the scientific work that was performed to evaluate and assess the occurrence and economic potential of natural resources within the geologic setting of the Yucca Mountain area. The extent of the regional areas of investigation for each commodity differs and those areas are described in more detail in the major subsections of this report. Natural resource assessments have focused on an area defined as the ''conceptual controlled area'' because of the requirements contained in the U.S. Nuclear Regulatory Commission Regulation, 10 CFR Part 60, to define long-term boundaries for potential radionuclide releases. New requirements (proposed 10 CFR Part 63 [Dyer 1999]) have obviated the need for defining such an area. However, for the purposes of this report, the area being discussed, in most cases, is the previously defined ''conceptual controlled area'', now renamed the ''natural resources site study area'' for this report (shown on Figure 1). Resource potential can be difficult to assess because it is dependent upon many factors, including economics (demand, supply, cost), the potential discovery of new uses for resources, or the potential discovery of synthetics to replace natural resource use. The evaluations summarized are based on present-day use and economic potential of the resources. The objective of this report is to summarize the existing reports and information for the Yucca Mountain area on: (1) Metallic mineral and mined energy resources (such as gold, silver, etc., including uranium); (2) Industrial rocks and minerals (such as sand, gravel, building stone, etc.); (3) Hydrocarbons (including oil, natural gas, tar sands, oil shales, and coal); and (4) Geothermal resources. Groundwater is present at the Yucca Mountain site at depths ranging from 500 to 750 m (about 1,600 to 2,500 ft) below the ground surface. Groundwater resources are not discussed in this report, but are planned to be included in the hydrology section of future revisions of the ''Yucca Mountain Site Description'' (CRWMS M&O 2000c).

D.F. Fenster

2000-12-11T23:59:59.000Z

429

Airborne Particulate Threat Assessment  

SciTech Connect (OSTI)

Aerosol threat detection requires the ability to discern between threat agents and ambient background particulate matter (PM) encountered in the environment. To date, Raman imaging technology has been demonstrated as an effective strategy for the assessment of threat agents in the presence of specific, complex backgrounds. Expanding our understanding of the composition of ambient particulate matter background will improve the overall performance of Raman Chemical Imaging (RCI) detection strategies for the autonomous detection of airborne chemical and biological hazards. Improving RCI detection performance is strategic due to its potential to become a widely exploited detection approach by several U.S. government agencies. To improve the understanding of the ambient PM background with subsequent improvement in Raman threat detection capability, ChemImage undertook the Airborne Particulate Threat Assessment (APTA) Project in 2005-2008 through a collaborative effort with the National Energy Technology Laboratory (NETL), under cooperative agreement number DE-FC26-05NT42594. During Phase 1 of the program, a novel PM classification based on molecular composition was developed based on a comprehensive review of the scientific literature. In addition, testing protocols were developed for ambient PM characterization. A signature database was developed based on a variety of microanalytical techniques, including scanning electron microscopy, FT-IR microspectroscopy, optical microscopy, fluorescence and Raman chemical imaging techniques. An automated particle integrated collector and detector (APICD) prototype was developed for automated collection, deposition and detection of biothreat agents in background PM. During Phase 2 of the program, ChemImage continued to refine the understanding of ambient background composition. Additionally, ChemImage enhanced the APICD to provide improved autonomy, sensitivity and specificity. Deliverables included a Final Report detailing our findings and APICD Gen II subsystems for automated collection, deposition and detection of ambient particulate matter. Key findings from the APTA Program include: Ambient biological PM taxonomy; Demonstration of key subsystems needed for autonomous bioaerosol detection; System design; Efficient electrostatic collection; Automated bioagent recognition; Raman analysis performance validating Td<9 sec; Efficient collection surface regeneration; and Development of a quantitative bioaerosol defection model. The objective of the APTA program was to advance the state of our knowledge of ambient background PM composition. Operation of an automated aerosol detection system was enhanced by a more accurate assessment of background variability, especially for sensitive and specific sensing strategies like Raman detection that are background-limited in performance. Based on this improved knowledge of background, the overall threat detection performance of Raman sensors was improved.

Patrick Treado; Oksana Klueva; Jeffrey Beckstead

2008-12-31T23:59:59.000Z

430

assessment risk assessment: Topics by E-print Network  

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

Procedure 447 A 576-YEAR WEBER RIVER STREAMFLOW RECONSTRUCTION FROM TREE RINGS FOR WATER RESOURCE RISK ASSESSMENT IN THE WASATCH FRONT, UTAH1 Environmental Sciences and Ecology...

431

INEEL Source Water Assessment  

SciTech Connect (OSTI)

The Idaho National Engineering and Environmental Laboratory (INEEL) covers approximately 890 mi2 and includes 12 public water systems that must be evaluated for Source water protection purposes under the Safe Drinking Water Act. Because of its size and location, six watersheds and five aquifers could potentially affect the INEEL’s drinking water sources. Based on a preliminary evaluation of the available information, it was determined that the Big Lost River, Birch Creek, and Little Lost River Watersheds and the eastern Snake River Plain Aquifer needed to be assessed. These watersheds were delineated using the United States Geologic Survey’s Hydrological Unit scheme. Well capture zones were originally estimated using the RESSQC module of the Environmental Protection Agency’s Well Head Protection Area model, and the initial modeling assumptions and results were checked by running several scenarios using Modflow modeling. After a technical review, the resulting capture zones were expanded to account for the uncertainties associated with changing groundwater flow directions, a thick vadose zone, and other data uncertainties. Finally, all well capture zones at a given facility were merged to a single wellhead protection area at each facility. A contaminant source inventory was conducted, and the results were integrated with the well capture zones, watershed and aquifer information, and facility information using geographic information system technology to complete the INEEL’s Source Water Assessment. Of the INEEL’s 12 public water systems, three systems rated as low susceptibility (EBR-I, Main Gate, and Gun Range), and the remainder rated as moderate susceptibility. No INEEL public water system rated as high susceptibility. We are using this information to develop a source water management plan from which we will subsequently implement an INEEL-wide source water management program. The results are a very robust set of wellhead protection areas that will protect the INEEL’s public water systems yet not too conservative to inhibit the INEEL from carrying out its missions.

Sehlke, Gerald

2003-03-01T23:59:59.000Z

432

Assessment of Metal Media Filters for Advanced Coal-Based Power Generation Applications  

SciTech Connect (OSTI)

Advanced coal and biomass-based gas turbine power generation technologies (IGCC, PFBC, PCFBC, and Hipps) are currently under development and demonstration. Efforts at Siemens Westinghouse Power Corporation (SWPC) have been focused on the development and demonstration of hot gas filter systems as an enabling technology for power generation. This paper reviews SWPC's material and component assessment efforts, identifying the performance, stability, and life of porous metal, advanced alloy, and intermetallic filters under simulated, pressurized fluidized-bed combustion conditions.

Alvin, M.A.

2002-09-19T23:59:59.000Z

433

Stability of prograde and retrograde planets in circular binary systems  

E-Print Network [OSTI]

We investigate the stability of prograde versus retrograde planets in circular binary systems using numerical simulations. We show that retrograde planets are stable up to distances closer to the perturber than prograde planets. We develop an analytical model to compute the prograde and retrograde mean motion resonances' locations and separatrices. We show that instability is due to single resonance forcing, or caused by nearby resonances' overlap. We validate our results regarding the role of single resonances and resonances' overlap on orbit stability, by computing surfaces of section of the CR3BP. We conclude that the observed enhanced stability of retrograde planets with respect to prograde planets is due to essential differences between the phase-space topology of retrograde versus prograde resonances (at p/q mean motion ratio, prograde resonance is of order p - q while retrograde resonance is of order p + q).

M. H. M. Morais; C. A. Giuppone

2012-06-22T23:59:59.000Z

434

Classical stability of black holes under massless Dirac perturbations  

E-Print Network [OSTI]

In a D-dimensional maximally symmetric spacetime we simplify the massless Dirac equation to two decoupled wavelike equations with effective potentials. Furthermore in D-dimensional Schwarzschild and Schwarzschild de Sitter black holes we note that for the massless Dirac field moving in the region exterior to the event horizon at least one of the effective potentials is not positive definite. Therefore the classical stability of these black holes against this field is not guaranteed. Here with the help of the S-deformation method, we state their classical stability against the massless Dirac field, extend these results to maximally symmetric black holes, and comment on the applicability of our results to establish the stability with respect to other classical fields.

A. Lopez-Ortega

2012-11-08T23:59:59.000Z

435

Quercetin as natural stabilizing agent for bio-polymer  

SciTech Connect (OSTI)

The introduction of antioxidants in polymers is the main way to prevent or delay the degradation process. In particular natural antioxidants receive attention in the food industry also because of their presumed safety. In this work bio-polymers, i.e. a commercial starch-based polymer (Mater-Bi®) and a bio-polyester (PLA), and a bio-polyether (PEO) were additivated with quercetin, a natural flavonoid antioxidants, in order to formulate bio-based films for ecosustainable packaging and outdoor applications. The photo-oxidation behavior of unstabilized and quercetin stabilized films was analyzed and compared with the behavior of films additivated with a commercial synthetic light stabilizer. The quercetin is able to slow down the photo-degradation rate of all bio-polymeric films investigated in similar way to the synthetic stabilizer.

Morici, Elisabetta [Dipartimento di Ingegneria Chimica, Gestionale, Informatica, Meccanica, Universitŕ di Palermo, 90128 Palermo (Italy); Arrigo, Rossella; Dintcheva, Nadka Tzankova [Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali, Universitŕ di Palermo, 90128 Palermo (Italy)

2014-05-15T23:59:59.000Z

436

Chemical potential as a source of stability for gravitating Skyrmions  

E-Print Network [OSTI]

A discussion of the stability of self gravitating Skyrmions, with a large winding number N, in a Schwarzschild type of metric, is presented for the case where an isospin chemical potential is introduced. It turns out that the chemical potential stabilizes the behavior of the Skyrmion discussed previously in the literature. This analysis is carried on in the framework of a variational approach using different ansaetze for the radial profile of the Skyrmion. We found a divergent behavior for the size of the Skyrmion, associated to a certain critical value $\\mu_c$ of the chemical potential. At this point, the mass of the Skyrmion vanishes. $\\mu_c$ is essentialy independent of gravitating effects. The stability of a large N skyrmion against decays into single particles is also discussed.

M. Loewe; S. Mendizabal; J. C. Rojas

2006-09-13T23:59:59.000Z

437

On the stability of a galactic disk in modified gravity  

E-Print Network [OSTI]

We find the dispersion relation for tightly wound spiral density waves in the surface of rotating, self-gravitating disks in the framework of Modified Gravity (MOG). Also, the Toomre-like stability criterion for differentially rotating disks has been derived for both fluid and stellar disks. More specifically, the stability criterion can be expressed in terms of a matter density threshold over which the instability occurs. In other words the local stability criterion can be written as $\\Sigma_0sound speed), $\\kappa$ (epicycle frequency) and $\\alpha$ and $\\mu_0$ are the free parameters of the theory. In the case of a stellar disk the radial velocity dispersion $\\sigma_r$ appears in $\\Sigma_{\\text{crit}}$ instead of $v_s$. We find the exact form of the function $\\Sigma_{\\text{crit}}$ for both stellar and fluid self-gravitating disks. Also, we use a sub-sample of THINGS catalog of spiral galaxies in order to ...

Roshan, Mahmood

2015-01-01T23:59:59.000Z

438

Thermal Stability of Fluorinated Polydienes Synthesized by Addition of Difluorocarbene  

SciTech Connect (OSTI)

Linear PCHD and polyisoprenes with different microstructures and molecular weights are synthesized and chemically modified to improve their thermal and chemical stability by forming a three-membered ring structure containing two C-F bonds. Pyrolysis of these fluorinated polydienes proceeds through a two-stage decomposition involving chain scission, crosslinking, dehydrogenation, and dehalogenation. The pyrolysis leads to graphite-like residues, whereas their polydiene precursors decompose completely under the same conditions. The fluorination of PCHD enhances its thermal stability. The stronger C-F bond along with high strain of the three-membered ring structure and formation of relatively stable free radicals play an important role in the thermal stability of fluorinated polydienes.

Huang, Tianzi [University of Tennessee, Knoxville (UTK); Wang, Xiaojun [ORNL; Malmgren, Thomas W [ORNL; Hong, Kunlun [ORNL; Mays, Jimmy [ORNL

2012-01-01T23:59:59.000Z

439

Effect of swell pressure on GCL cover stability  

SciTech Connect (OSTI)

This paper describes the importance of bentonite swell pressure on the stability of cover systems that incorporate a geosynthetic clay liner (GCL). The results of a one-dimensional swell test indicate that the field swell pressure of a needle-punched GCL ranges from 35 to 40 kPa. An effective normal stress at or near this swell pressure may be required to maximize the contact area between the GCL and geomembrane and increase the static and seismic stability of a GCL cover. Since an effective normal stress of 35 to 40 kPa is probably not practical and a soil cover is usually not immediately placed, it is recommended that free swell conditions be assumed for GCL shear testing and the slope be designed using the resulting shear strength parameters. Suggestions for modifying existing products to increase GCL cover stability are also presented.

Stark, T.D. [Univ. of Illinois, Urbana, IL (United States)

1997-11-01T23:59:59.000Z

440

Heisenberg picture approach to the stability of quantum Markov systems  

SciTech Connect (OSTI)

Quantum Markovian systems, modeled as unitary dilations in the quantum stochastic calculus of Hudson and Parthasarathy, have become standard in current quantum technological applications. This paper investigates the stability theory of such systems. Lyapunov-type conditions in the Heisenberg picture are derived in order to stabilize the evolution of system operators as well as the underlying dynamics of the quantum states. In particular, using the quantum Markov semigroup associated with this quantum stochastic differential equation, we derive sufficient conditions for the existence and stability of a unique and faithful invariant quantum state. Furthermore, this paper proves the quantum invariance principle, which extends the LaSalle invariance principle to quantum systems in the Heisenberg picture. These results are formulated in terms of algebraic constraints suitable for engineering quantum systems that are used in coherent feedback networks.

Pan, Yu, E-mail: yu.pan@anu.edu.au, E-mail: zibo.miao@anu.edu.au; Miao, Zibo, E-mail: yu.pan@anu.edu.au, E-mail: zibo.miao@anu.edu.au [Research School of Engineering, Australian National University, Canberra, ACT 0200 (Australia); Amini, Hadis, E-mail: nhamini@stanford.edu [Edward L. Ginzton Laboratory, Stanford University, Stanford, California 94305 (United States); Gough, John, E-mail: jug@aber.ac.uk [Institute of Mathematics and Physics, Aberystwyth University, SY23 3BZ Wales (United Kingdom); Ugrinovskii, Valery, E-mail: v.ugrinovskii@gmail.com [School of Engineering and Information Technology, University of New South Wales at ADFA, Canberra, ACT 2600 (Australia); James, Matthew R., E-mail: matthew.james@anu.edu.au [ARC Centre for Quantum Computation and Communication Technology, Research School of Engineering, Australian National University, Canberra, ACT 0200 (Australia)

2014-06-15T23:59:59.000Z

Note: This page contains sample records for the topic "measurement-based stability assessment" 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

Soil stabilization using oil-shale solid waste  

SciTech Connect (OSTI)

Oil-shale solid wastes are evaluated for use as soil stabilizers. A laboratory study consisted of the following tests on compacted samples of soil treated with water and spent oil shale: unconfined compressive strength, moisture-density relationships, wet-dry and freeze-thaw durability, and resilient modulus. Significant increases in strength, durability, and resilient modulus were obtained by treating a silty sand with combusted western oil shale. Moderate increases in durability and resilient modulus were obtained by treating a highly plastic clay with combusted western oil shale. Solid waste from eastern oil shale appears to be feasible for soil stabilization only if limestone is added during combustion. Testing methods, results, and recommendations for mix design of spent shale-stabilized pavement subgrades are presented and the mechanisms of spent-shale cementation are discussed.

Turner, J.P. (Univ. of Wyoming, Laramie, WY (United States). Dept. of Civil and Archeological Engineering)

1994-04-01T23:59:59.000Z

442

Water-in-carbon dioxide emulsions: Formation and stability  

SciTech Connect (OSTI)

Stable water-in-carbon dioxide (W/C) emulsions, for either liquid or supercritical CO{sub 2} containing up to 70 vol % water, are formed with various molecular weight perfluoropolyether ammonium caroxylate surfactants. Water droplet sizes ranging from 3 to 10 {micro}m were determined by optical microscopy. From conductivity measurements, an inversion to C/W emulsions results from a decrease in CO{sub 2} density or salinity at constant pressure, a decrease in surfactant molecular weight, or an increase in temperature. Emulsions become more stable with a change in any of these formulation variables away from the balanced state, which increases interfacial tensions and interfacial tension gradient enhancing Marangoni-Gibbs stabilization. This type of stability is enhanced with an increase in the molecular weight of the surfactant tails, which increases the thickness of the stabilizing films between droplets. W/C emulsions formed with the 7,500 molecular weight surfactant were stable for several days.

Lee, C.T. Jr.; Psathas, P.A.; Johnston, K.P.; Grazia, J. de; Randolph, T.W.

1999-09-28T23:59:59.000Z

443

Information needs for risk assessment  

SciTech Connect (OSTI)

Risk assessment can be thought of as a conceptual approach to bridge the gap between the available data and the ultimate goal of characterizing the risk or hazard associated with a particular environmental problem. To lend consistency to and to promote quality in the process, the US Environmental Protection Agency (EPA) published Guidelines for Risk Assessment of Carcinogenicity, Developmental Toxicity, Germ Cell Mutagenicity and Exposure Assessment, and Risk Assessment of Chemical Mixtures. The guidelines provide a framework for organizing the information, evaluating data, and for carrying out the risk assessment in a scientifically plausible manner. In the absence of sufficient scientific information or when abundant data are available, the guidelines provide alternative methodologies that can be employed in the risk assessment. 4 refs., 3 figs., 2 tabs.

DeRosa, C.T.; Choudhury, H.; Schoeny, R.S.

1990-12-31T23:59:59.000Z

444

Stability evaluation of the Markel Mine at Weeks Island, Louisiana  

SciTech Connect (OSTI)

A three dimensional (3D) finite element analysis of the Markel Mine located on Weeks Island was performed to: (1) evaluate the stability of the mine and (2) determine the effect of mine failure on the nearby Morton Salt mine and SPR facilities. The first part of the stability evaluation investigates the effect of pillar failure on mine stability. These simulations revealed that tensile stresses and dilatant damage develop in the overlying salt as a result of pillar loss. These tensile stresses extend to the salt/overburden interface only for the case where all 45 of the pillars are assumed to fail. Tensile stresses would likely cause microfracturing of the salt, resulting in a flow path for groundwater from the overlying aquifer to enter the mine. The dilatant damage bridges between the mine and the overburden in the case where 15 or more pillars are removed from the model. Dilatant damage is attributed to microfracturing or changes in the pore structure of the salt and could also result in a flow path for groundwater to enter the mine. The second part of the Markel Mine evaluation investigates the stability of the pillars with respect to three failure mechanisms: tensile failure, compressive failure, and creep rupture. A 3D slabbing pillar model of the Markel mine was developed to investigate progressive failure of the pillars and the effect of slabbing on mine stability. Based on a strain-limiting creep rupture criterion, pillar failure is predicted to be extensive at present. The associated loss of pillar strength should be equivalent to removing all pillars from the model as was done in the first part of this stability analysis, resulting in the possibility of ground water intrusion. Since creep rupture is not a well understood phenomenon, further development and validation of this criterion is recommended.

Hoffman, E.L.

1994-06-01T23:59:59.000Z

445

Enterprise Assessments Operational Awareness Record, Waste Treatment...  

Energy Savers [EERE]

March 2015 Enterprise Assessments Operational Awareness Record, Waste Treatment and Immobilization Plant - March 2015 March 2015 Enterprise Assessments Operational Awareness...

446

Pollutant Assessments Group Procedures Manual  

SciTech Connect (OSTI)

This procedures manual combines the existing procedures for radiological and chemical assessment of hazardous wastes used by the Pollutant Assessments Group at the time of manuscript completion (October 1, 1990). These procedures will be revised in an ongoing process to incorporate new developments in hazardous waste assessment technology and changes in administrative policy and support procedures. Format inconsistencies will be corrected in subsequent revisions of individual procedures.

Chavarria, D.E.; Davidson, J.R.; Espegren, M.L.; Kearl, P.M.; Knott, R.R.; Pierce, G.A.; Retolaza, C.D.; Smuin, D.R.; Wilson, M.J.; Witt, D.A. (Oak Ridge National Lab., TN (USA)); Conklin, N.G.; Egidi, P.V.; Ertel, D.B.; Foster, D.S.; Krall, B.J.; Meredith, R.L.; Rice, J.A.; Roemer, E.K. (Oak Ridge Associated Universities, Inc., TN (USA))

1991-02-01T23:59:59.000Z

447

Dynamic stability experiments in sodium-heated steam generators. [LMFBR  

SciTech Connect (OSTI)

Seventy-two dynamic stability tests were performed in the sodium-heated boiling-water test facility at Argonne National Laboratory. A full-scale LMFBR steam generator tube was employed as the test section operating over the water parameter ranges of 6.9 to 15.9 MPa pressure and 170 to 800 kg/m/sup 2/.s mass flux. The stability thresholds from the test compared well to the predictions of a modified version of a correlation equation recently published by other investigators. Typical experimental data and the modified correlation equation are presented.

France, D.M.; Roy, R.; Carlson, R.D.; Chiang, T.

1984-01-01T23:59:59.000Z

448

Solidification/stabilization of organics and inorganics. Engineering bulletin  

SciTech Connect (OSTI)

The engineering bulletin on solidification refers to techniques that encapsulate hazardous waste into a solid material of high structural integrity. Encapsulation involves either fine waste particles (microencapsulation) or a large block or container of wastes (macroencapsulation). Stabilization refers to techniques that treat hazardous waste by converting it into a less soluble, mobile, or toxic form. Solidification/Stabilization processes utilize one or both of these techniques. The bulletin provides information on the technology applicability, the technology limitations, a description of the technology, the types of residuals produced, site requirements, the latest performance data, the status of the technology, and sources of further information.

Not Available

1992-09-01T23:59:59.000Z

449

Stability of Thin-Shell Wormholes in Nonlinear Electrodynamics  

E-Print Network [OSTI]

In this paper, we construct thin-shell wormholes by applying the cut and paste procedure to a regular charged black hole in nonlinear electrodynamics field. We discuss different physical aspects of wormholes such as, the possible equation of state to matter shell, attractive or repulsive nature of wormhole and total amount of exotic matter required. The thin-shell equation of motion with and without cosmological constant is also investigated under linearized perturbation. Finally, we explore the stability regions interpreted by the parameter $\\beta$ (speed of sound) and conclude that there are realistic stability regions for some fixed values of parameters.

M. Sharif; M. Azam

2013-06-17T23:59:59.000Z

450

Stability comparison of two absolute gravimeters: optical versus atomic interferometers  

E-Print Network [OSTI]

We report the direct comparison between the stabilities of two mobile absolute gravimeters of different technology: the LNE-SYRTE Cold Atom Gravimeter and FG5X\\#216 of the Universit\\'e du Luxembourg. These instruments rely on two different principles of operation: atomic and optical interferometry. The comparison took place in the Walferdange Underground Laboratory for Geodynamics in Luxembourg, at the beginning of the last International Comparison of Absolute Gravimeters, ICAG-2013. We analyse a 2h10 duration common measurement, and find that the CAG shows better immunity with respect to changes in the level of vibration noise, as well as a slightly better short term stability.

Gillot, Pierre; Landragin, Arnaud; Santos, Franck Pereira Dos; Merlet, Sébastien

2014-01-01T23:59:59.000Z

451

Thermonuclear Fusion with the Sheared Flow Stabilized Z-Pinch  

E-Print Network [OSTI]

Two basic approaches to producing thermonuclear fusion with a sheared flow stabilized z-pinch are considered. One consists of heating the entire length of the z-pinch column to the required temperatures. The other basic approach considered here involves the concept of fast ignition. A localized "hot-spot" is produced under the proper conditions to ignite a thermonuclear burn wave in the z-pinch plasma. Here we demonstrate that sheared flow stabilization is more efficient in the fast-ignition method with isentropic compression then in a z-pinch where the entire plasma column is heated.

Winterberg, F

2008-01-01T23:59:59.000Z

452

Management and Independent Assessments Guide  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

The Guide reflects updated standards for assessment practices, international standards, and changes in DOE expectations related to quality assurance (QA). Cancels DOE G 414.1-1B.

2014-03-27T23:59:59.000Z

453

Environmental Assessment (Nova Scotia, Canada)  

Broader source: Energy.gov [DOE]

Nova Scotia Environment conducts environmental assessments on projects and developments to ensure they adhere to the laws and regulations of the province. Developments required to undergo an...

454

CRAD, Operations Authorization Assessment Plan  

Broader source: Energy.gov [DOE]

The objective of this assessment is to verify there is documentation in place which accurately describes the safety envelope for a facility, program or project.

455

SEASONAL RECLAIMED WATER QUALITY; AN ASSESSMENT OFQUALITY; AN ASSESSMENT OF  

E-Print Network [OSTI]

and disinfect anyy microorganisms that may be present The majority of Recycled water produced in ArizonaSEASONAL RECLAIMED WATER QUALITY; AN ASSESSMENT OFQUALITY; AN ASSESSMENT OF BIOLOGICAL VARIABILITY Ch h M R k Ph D W t Q lit S i li tChannah M. Rock, Ph.D., Water Quality Specialist James Walworth, Ph

Fay, Noah

456

An Impact Assessment Model for Distributed Adaptive Security Situation Assessment*  

E-Print Network [OSTI]

1 An Impact Assessment Model for Distributed Adaptive Security Situation Assessment* Mark Heckman mechanism is not simply to stop attacks, but to protect a computing resource so that the resource can continue to perform its function. A computing resource, however, is only a component of a larger system

California at Davis, University of

457

Forestry Commission Equality Impact Assessment 1 Equality Impact Assessment summary  

E-Print Network [OSTI]

Forestry Commission Equality Impact Assessment 1 Equality Impact Assessment summary Step 10 Name and programmes by which Forestry Commission Wales will help to deliver Woodlands for Wales ­ the Wales woodland of Demographic Equality Strands (2006) National Assembly for Wales · Forestry Commission survey of visitors

458

Quality Assessment in Oncology  

SciTech Connect (OSTI)

The movement to improve healthcare quality has led to a need for carefully designed quality indicators that accurately reflect the quality of care. Many different measures have been proposed and continue to be developed by governmental agencies and accrediting bodies. However, given the inherent differences in the delivery of care among medical specialties, the same indicators will not be valid across all of them. Specifically, oncology is a field in which it can be difficult to develop quality indicators, because the effectiveness of an oncologic intervention is often not immediately apparent, and the multidisciplinary nature of the field necessarily involves many different specialties. Existing and emerging comparative effectiveness data are helping to guide evidence-based practice, and the increasing availability of these data provides the opportunity to identify key structure and process measures that predict for quality outcomes. The increasing emphasis on quality and efficiency will continue to compel the medical profession to identify appropriate quality measures to facilitate quality improvement efforts and to guide accreditation, credentialing, and reimbursement. Given the wide-reaching implications of quality metrics, it is essential that they be developed and implemented with scientific rigor. The aims of the present report were to review the current state of quality assessment in oncology, identify existing indicators with the best evidence to support their implementation, and propose a framework for identifying and refining measures most indicative of true quality in oncologic care.

Albert, Jeffrey M. [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Das, Prajnan, E-mail: prajdas@mdanderson.org [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States)

2012-07-01T23:59:59.000Z

459

RADIO EMISSION FROM INSTABILITIES IN SPACE PLASMAS: MARGINAL STABILITY,  

E-Print Network [OSTI]

I t RADIO EMISSION FROM INSTABILITIES IN SPACE PLASMAS: MARGINAL STABILITY, 4TOCHASTIC GROWTH emission, hich is an indirect emission process first discussed by Ginaburg and Zhe/eznyakoe, 9581, and electron cyclotron maser emission (ECME), which is a direct emission ess first discussed in the presently

Melrose, Don

460

Columbia University Energy Options & Paths to Climate Stabilization  

E-Print Network [OSTI]

-lived radioactive components. · Safe: no catastrophic accidents; Low-risk for nuclear materials proliferation WhyMike Mauel Columbia University Energy Options & Paths to Climate Stabilization Aspen, 9 July 2003 Fusion Energy: "Pipe Dream or Panacea" #12;Mike Mauel Columbia University Energy Options & Paths

Mauel, Michael E.

Note: This page contains sample records for the topic "measurement-based stability assessment" 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

MHD Stability Calculations of High-Quasi-Axisymmetric Stellarators  

E-Print Network [OSTI]

because the net toroidal current is zero or very small. However, in high-beta compact stellaratorsMHD Stability Calculations of High- Quasi-Axisymmetric Stellarators G. Y. Fu, L. P. Ku, N. Pomphrey the external kink modes. Most previous work has assumed cylindrical geometry and zero beta. In this work

462

MHD Stability Calculations of High-Quasi-Axisymmetric Stellarators  

E-Print Network [OSTI]

because the net toroidal current is zero or very small. However, in high-beta compact stellaratorsMHD Stability Calculations of High- Quasi-Axisymmetric Stellarators G. Y. Fu, L. P. Ku, N. Pomphrey kink modes. Most previous work has assumed cylindrical geometry and zero beta. In this work, extensive

463

WORKING PAPER N 2009 -38 Existence and stability of  

E-Print Network [OSTI]

generally that life expectancy is increasing with output per capita, and, thus, with individ- ual consumption, whatever the consumption level is. However, empirical evidence on the e¤ect of overconsumption life expectancy is a non-monotonic function of consumption. The existence, uniqueness and stability

Paris-Sud XI, Université de

464

The FASEB Journal Hypothesis Structure of infectious prions: stabilization  

E-Print Network [OSTI]

stack to form cross- fibrils and may provide insight into protein aggregates of other amyloid dis- eases) Key Words: prion domain swapping -helix amyloid MODEL -HELICAL PRION TRIMER The protein-only modelThe FASEB Journal · Hypothesis Structure of infectious prions: stabilization by domain swapping

Yang, Sichun

465

A phase-stabilized carbon nanotube fiber laser frequency comb  

E-Print Network [OSTI]

error on the carrier envelope offset frequency of 0.35 radians. The carbon nanotube fiber laser combA phase-stabilized carbon nanotube fiber laser frequency comb Jinkang Lim1 , Kevin Knabe1 , Karl A by a 167 MHz repetition frequency erbium-doped fiber ring laser using a carbon nanotube saturable absorber

Washburn, Brian

466

Texas Fluid Dynamics Meeting, 2013 STABILITY OF ROTOR WAKES.  

E-Print Network [OSTI]

et al.(2000) [1] did eigenvalue stability analysis on multi-bladed helicopter rotor wakes and found, of multi-bladed helicopter rotor wake. Despite various analytical, numerical and flow visualiza- tion-scale four- bladed helicopter rotor in hover [6,7], revealed some impor- tant observations. Investigations

Tinney, Charles E.

467

Adsorption, desorption, and stabilization of arsenic on aluminum substituted ferrihydrite  

E-Print Network [OSTI]

systems were evaluated by studying their mineralogy, stability, and As adsorption and desorption behavior. The broad XRD peaks revealed that Al was substituted into the ferrihydrite structure and that this was the only major product up to about a 2:8 Al...

Masue, Yoko

2006-04-12T23:59:59.000Z

468

Frequency stabilization of a Titanium-Sapphire laser for  

E-Print Network [OSTI]

Frequency stabilization of a Titanium-Sapphire laser for precision spectroscopy on Calcium ions . . . . . . . . . . . . . . . . . . . . . . . 53 5.3.2 In-loop error signal . . . . . . . . . . . . . . . . . . . . . . 56 6 Laser linewidth 59 6.1 Performance estimation with the in-loop error signal . . . . . . . 59 6.1.1 Theoretical description

Blatt, Rainer

469

Time-domain Dynamics and Stability Analysis of Optoelectronic Oscillators  

E-Print Network [OSTI]

Time-domain Dynamics and Stability Analysis of Optoelectronic Oscillators based on Whispering and Yanne K. Chembo Optoelectronic oscillators (OEOs) are microwave photonics systems in- tended to generate in "" #12;1 Introduction The optoelectronic oscillator (OEO) is nowadays considered as one of the most

Paris-Sud XI, Université de

470

Enhanced thermal stability of phosphate capped magnetite nanoparticles  

SciTech Connect (OSTI)

We have studied the effect of phosphate capping on the high temperature thermal stability and magnetic properties of magnetite (Fe{sub 3}O{sub 4}) nanoparticles synthesized through a single-step co-precipitation method. The prepared magnetic nanoparticles are characterized using various techniques. When annealed in air, the phosphate capped nanoparticle undergoes a magnetic to non-magnetic phase transition at a temperature of 689?°C as compared to 580?°C in the uncoated nanoparticle of similar size. The observed high temperature phase stability of phosphate capped nanoparticle is attributed to the formation of a phosphocarbonaceous shell over the nanoparticles, which acts as a covalently attached protective layer and improves the thermal stability of the core material by increasing the activation energy. The phosphocarbonaceous shell prevents the intrusion of heat, oxygen, volatiles, and mass into the magnetic core. At higher temperatures, the coalescence of nanoparticles occurs along with the restructuring of the phosphocarbonaceous shell into a vitreous semisolid layer on the nanoparticles, which is confirmed from the small angle X-ray scattering, Fourier transform infra red spectroscopy, and transmission electron microscopy measurements. The probable mechanism for the enhancement of thermal stability of phosphocarbonaceous capped nanoparticles is discussed.

Muthukumaran, T.; Philip, John, E-mail: philip@igcar.gov.in [SMARTS, Metallurgy and Materials Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu-603 102 (India)

2014-06-14T23:59:59.000Z

471

Borovik-Poizat rank and stability Jeffrey Burdges*  

E-Print Network [OSTI]

Borovik-Poizat rank and stability Jeffrey Burdges Borovik proposed an axiomatic treatment of Morley rank in groups, later modi- fied by Poizat, who showed that in the context of groups the resulting notion of rank provides a characterization of groups of finite Morley

Cherlin, Gregory

472

Neuromechanical models for insect locomotion: Stability, maneuverability, and proprioceptive feedback  

E-Print Network [OSTI]

system with only three degrees of freedom, and numerical simulations coupled with a Poincaré map analysis and a neutral mode in body yaw angle. These modes moderate high frequency perturbations, producing slow heading reinforce the preflexive stability inherent in the system. © 2009 American Institute of Physics. DOI: 10

Holmes, Philip

473

IAEA-TECDOC-1403 The long term stabilization of  

E-Print Network [OSTI]

. This includes managing the legacy of accidents and past practices, including that from uranium mining and radioactive substance and of uranium mining and milling sites. In the past, often little or no care was takenIAEA-TECDOC-1403 The long term stabilization of uranium mill tailings Final report of a co

474

Localized temperature stability of low temperature cofired ceramics  

DOE Patents [OSTI]

The present invention is directed to low temperature cofired ceramic modules having localized temperature stability by incorporating temperature coefficient of resonant frequency compensating materials locally into a multilayer LTCC module. Chemical interactions can be minimized and physical compatibility between the compensating materials and the host LTCC dielectrics can be achieved. The invention enables embedded resonators with nearly temperature-independent resonance frequency.

Dai, Steven Xunhu

2013-11-26T23:59:59.000Z

475

STABILITY PROPERTIES OF LIGHT PROPAGATING IN FIBER OPTICS  

E-Print Network [OSTI]

STABILITY PROPERTIES OF LIGHT PROPAGATING IN FIBER OPTICS ST´EPHANE LAFORTUNE Summary The study is crucial in applications such as lasers and optical fibers. In this proposal I will focus on a model of fiber optics: the Manakov system. This system consists of two differential equations, that is two

Kasman, Alex

476

Hamilton-Jacobi equations with jumps: asymptotic stability  

E-Print Network [OSTI]

The asymptotic stability of a global solution satisfying Hamilton-Jacobi equations with jumps will be analyzed in dependence on the strong dissipativity of the jump control function and using orbits of the differentiable flows to describe the corresponding characteristic system.

Amir Mahmood; Saima Parveen

2009-09-05T23:59:59.000Z

477

Slope stability and CCF The impact of forests and  

E-Print Network [OSTI]

. Road building and harvesting operations that are essential for forest management reduce the stabilizing of slope instability which are closely linked; surface erosion and landslides. Surface erosion is a water capacity, or ability to absorb and hold water (Schoenholtz et al., 2000). Surface flow is therefore rare

478

Controlling attosecond electron dynamics by phase-stabilized polarization gating  

E-Print Network [OSTI]

LETTERS Controlling attosecond electron dynamics by phase-stabilized polarization gating I. J. SOLA the signature of a single return of the electron wavepacket over a large range of energies. This temporally (low energy) and cut-off (high energy) harmonics, specific focusing conditions ensure that only

Loss, Daniel

479

Settlement Prediction, Gas Modeling and Slope Stability Analysis  

E-Print Network [OSTI]

Settlement Prediction, Gas Modeling and Slope Stability Analysis in Coll Cardús Landfill Li Yu UNIVERSIDAD POLITÉCNICA DE CATALUŃA April, 2007 GEOMODELS #12;Introduction to Coll Cardús landfill Prediction of settlement in Coll Cardús landfill 1) Settlement prediction by empirical method 2) Settlement prediction

Politčcnica de Catalunya, Universitat

480

BURN CONTROL IN FUSION REACTORS VIA NONLINEAR STABILIZATION TECHNIQUES  

E-Print Network [OSTI]

of low temperature and high density where the thermonuclear reaction is inherently thermally unstable. Figure 1a shows that for low temperatures the rate of thermonuclear reaction for a D-T mixture in stabilization of the thermonuclear reaction can be obtained. Neverthe- less, this approach is often insufficient

Krstic, Miroslav

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481

Stability, electronic structure and reactivity of the polymerized fullerite forms  

E-Print Network [OSTI]

Stability, electronic structure and reactivity of the polymerized fullerite forms V.V. Belavina , L density distribution from selected crystal orbitals of polymerized C60 forms was carried out. Linear chain with the highest occupied (HO) and lowest unoccupied (LU) bands. The polymerized C60 forms were found to be less

482

Stabilizing and Robustifying the Learning Mechanisms of Artificial Neural Networks  

E-Print Network [OSTI]

nonlinear dynamics of the plant, existence of a considerable amount of observation noise, and the adverse networks Z .ANN is the lack of stabilizing forces, the existence of which prevents the unbounded growth structure, which is trained on-line or off-line, will perform under the existence of strong external

Efe, Mehmet Ă?nder

483

On the stability of a galactic disk in modified gravity  

E-Print Network [OSTI]

We find the dispersion relation for tightly wound spiral density waves in the surface of rotating, self-gravitating disks in the framework of Modified Gravity (MOG). Also, the Toomre-like stability criterion for differentially rotating disks has been derived for both fluid and stellar disks. More specifically, the stability criterion can be expressed in terms of a matter density threshold over which the instability occurs. In other words the local stability criterion can be written as $\\Sigma_0sound speed), $\\kappa$ (epicycle frequency) and $\\alpha$ and $\\mu_0$ are the free parameters of the theory. In the case of a stellar disk the radial velocity dispersion $\\sigma_r$ appears in $\\Sigma_{\\text{crit}}$ instead of $v_s$. We find the exact form of the function $\\Sigma_{\\text{crit}}$ for both stellar and fluid self-gravitating disks. Also, we use a sub-sample of THINGS catalog of spiral galaxies in order to compare the local stability criteria. In this perspective, we have compared MOG with Newtonian gravity and investigated the possible and detectable differences between these theories.

Mahmood Roshan; Shahram Abbassi

2015-03-14T23:59:59.000Z

484

Collective behavior of stabilized reaction-diffusion waves  

SciTech Connect (OSTI)

Stabilized wave segments in the photosensitive Belousov-Zhabotinsky reaction are directionally controlled with intensity gradients in the applied illumination. The constant-velocity waves behave like self-propelled particles, and multiple waves interact via an applied interaction potential. Alignment arises from the intrinsic properties of the interacting waves, leading to processional and rotational behavior.

Steele, Aaron J.; Tinsley, Mark; Showalter, Kenneth [Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506-6045 (United States)

2008-06-15T23:59:59.000Z

485

Hello Again: Stabilization of the Hello Protocol in OSPF  

E-Print Network [OSTI]

Hello Again: Stabilization of the Hello Protocol in OSPF Jorge A. Cobb Mohamed G. Gouda Deepinder Sidhu § Abstract The Hello protocol in OSPF allows each router in a network to check whether it can periodi- cally send hello messages to every neighboring router in the network. Associated with the Hello

Cobb, Jorge Arturo

486

ON PROVING FUTURE STABILITY OF COSMOLOGICAL SOLUTIONS WITH ACCELERATED EXPANSION  

E-Print Network [OSTI]

ON PROVING FUTURE STABILITY OF COSMOLOGICAL SOLUTIONS WITH ACCELERATED EXPANSION HANS RINGSTR at an accelerated rate. As a consequence, it is of interest to prove that cosmological solutions to Ein- stein's equations with accelerated expansion are future stable. That is the topic of the present contribution

Ringström, Hans

487

Vacuum Stability in two-Higgs doublet models  

E-Print Network [OSTI]

In this work we review the status of tree-level vacuum stability in general two-Higgs doublet models. We also discuss the problem of Normal minima in some classes of potentials. In some of these potentials, Normal minima can coexist leading to potentially dangerous physic scenarios as, for instance, a two step spontaneous symmetry breaking.

Nuno Barros e Sa; Augusto Barroso; Pedro Ferreira; Rui Santos

2009-09-04T23:59:59.000Z

488

Luminosity Stability Issues for the TESLA Beam Delivery System (BDS)  

E-Print Network [OSTI]

Luminosity Stability Issues for the TESLA Beam Delivery System (BDS) Nicholas Walker1 (DESY, Germany) Andrzej Wolski2 (Daresbury Laboratory, UK) TESLA 2000-22 October 17, 2000 1 Introduction Given of ground motion and vibration in linear colliders both for TESLA and NLC/JLC (see for example [1

489

System specification for the plutonium stabilization and packaging system  

SciTech Connect (OSTI)

This document describes functional design requirements for the Plutonium Stabilization and Packaging System (Pu SPS), as required by DOE contract DE-AC03-96SF20948 through contract modification 9 for equipment in Building 707 at Rocky Flats Environmental Technology Site (RFETS).

NONE

1996-07-01T23:59:59.000Z

490

A Peltier cooling system for SiPM temperature stabilization  

E-Print Network [OSTI]

A Peltier cooling system for SiPM temperature stabilization von Simon Nieswand Bachelorarbeit außen thermisch isolierten Kupferblockes einzulassen, an welchen ein Peltier-Element angebracht wird. Um das System zu automatisieren, werden der Temperatursensor und die Stromquelle des Peltier- Elements

Hebbeker, Thomas

491

Stability of Miscible Displacements Across Stratified Porous Media  

SciTech Connect (OSTI)

This report studied macro-scale heterogeneity effects. Reflecting on their importance, current simulation practices of flow and displacement in porous media were invariably based on heterogeneous permeability fields. Here, it was focused on a specific aspect of such problems, namely the stability of miscible displacements in stratified porous media, where the displacement is perpendicular to the direction of stratification.

Shariati, Maryam; Yortsos, Yanis C.

2000-09-11T23:59:59.000Z

492

-STABILITY AND VORTEX MOTION IN TYPE II SUPERCONDUCTORS  

E-Print Network [OSTI]

-STABILITY AND VORTEX MOTION IN TYPE II SUPERCONDUCTORS MATTHIAS KURZKE AND DANIEL SPIRN Abstract. 1. Introduction 1.1. Physical background. The evolution of a superconducting material is usu- ally of the magnetic field and the electric field potential for a superconducting sample R2 . The parameter

Spirn, Daniel

493

Population stability, cooperation, and the invasibility of the human species  

E-Print Network [OSTI]

a mechanism for these outcomes by modifying a simple density-dependent population model to allow varying populations expanded out of Africa and spread rapidly across the majority of the earth's land surfacePopulation stability, cooperation, and the invasibility of the human species Marcus J. Hamiltona

Brown, James H.

494

CIGS Material and Device Stability: A Processing Perspective (Presentation)  

SciTech Connect (OSTI)

This is a general overview of CIGS material and device fundamentals. In the first part, the basic features of high efficiency CIGS absorbers and devices are described. In the second part, some examples of previous collaboration with Shell Solar CIGSS graded absorbers and devices are shown to illustrate how process information was used to correct deviations and improve the performance and stability.

Ramanathan, K.

2012-03-01T23:59:59.000Z

495

Laser Frequency Stabilization with Optical Cavities Anya M. Davis  

E-Print Network [OSTI]

Laser Frequency Stabilization with Optical Cavities Anya M. Davis Walla Walla University University Effective laser cooling requires the laser's frequency to be precise, with a frequency drift of no more than lasers for correcting frequency drift. In the University of Washington Quantum Computing with Trapped

Blinov, Boris

496

Feedback stabilization of unstable propagating waves Eugene Mihaliuk,1  

E-Print Network [OSTI]

Feedback stabilization of unstable propagating waves Eugene Mihaliuk,1 Tatsunari Sakurai,1 Florin Received 29 July 2001; revised manuscript received 10 March 2002; published 26 June 2002 Propagating wave s : 82.40.Ck, 47.54. r Propagating waves in active media arise from the cou- pling of a positive feedback

Showalter, Kenneth

497

POINTWISE GREEN FUNCTION BOUNDS AND STABILITY OF COMBUSTION WAVES  

E-Print Network [OSTI]

POINTWISE GREEN FUNCTION BOUNDS AND STABILITY OF COMBUSTION WAVES GREGORY LYNG, MOHAMMADREZA ROOFI for traveling wave solutions of an abstract viscous combustion model including both Majda's model and the full-wave) approximation. Notably, our results apply to combustion waves of any type: weak or strong, detonations or defla

Texier, Benjamin - Institut de Mathématiques de Jussieu, Université Paris 7

498

STABILITY OF PRODUCTION-INVENTORY CONTROL SYSTEMS CONSIDERING INVENTORY SHORTAGES  

E-Print Network [OSTI]

STABILITY OF PRODUCTION-INVENTORY CONTROL SYSTEMS CONSIDERING INVENTORY SHORTAGES Jayendran@iitb.ac.in) Extended Abstract The modelling and analysis of the production-inventory control systems of manufacturing in inventory levels, production releases, stock-outs; and ultimately affecting the profit of the firm

Venkateswaran, Jayendran

499

Universal topological phase of 2D stabilizer codes  

E-Print Network [OSTI]

Two topological phases are equivalent if they are connected by a local unitary transformation. In this sense, classifying topological phases amounts to classifying long-range entanglement patterns. We show that all 2D topological stabilizer codes are equivalent to several copies of one universal phase: Kitaev's topological code. Error correction benefits from the corresponding local mappings.

H. Bombin; Guillaume Duclos-Cianci; David Poulin

2011-03-23T23:59:59.000Z

500

SPECTRAL ENERGY METHODS AND THE STABILITY OF SHOCK WAVES  

E-Print Network [OSTI]

SPECTRAL ENERGY METHODS AND THE STABILITY OF SHOCK WAVES Jeffrey Humpherys Submitted to the faculty Robert Glassey, David Hoff, and Peter Sternberg for their good counsel and service. I am grateful use energy methods, extending the work of Goodman, Kawashima, Matsumura, and Nishihara, to prove

Humpherys, Jeffrey