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to obtain the most current and comprehensive results.


1

PPPL-3136 -Preprint Date: August 1995 Majority Ion Heating Near the Ion-ion Hybrid Layer in  

E-Print Network [OSTI]

magnetosonic waves in the ion cyclotron range of frequencies (ICRF) is discussed. Majority ion heating results1 PPPL-3136 - Preprint Date: August 1995 Majority Ion Heating Near the Ion-ion Hybrid Layer direct majority ion heating in a deuterium-tritium (D-T) reactor-grade plasma via absorption of fast

2

PPPL3136 Preprint Date: August 1995 Majority Ion Heating Near the Ionion Hybrid Layer in  

E-Print Network [OSTI]

magnetosonic waves in the ion cyclotron range of frequencies (ICRF) is discussed. Majority ion heating results1 PPPL­3136 ­ Preprint Date: August 1995 Majority Ion Heating Near the Ion­ion Hybrid Layer direct majority ion heating in a deuterium­tritium (D­T) reactor­grade plasma via absorption of fast

3

Nonlinear ion concentration polarization : fundamentals and applications  

E-Print Network [OSTI]

Ion exchange membrane (IEM) is a functional material that has a permselectivity of ions. Two types of IEMs - anion exchange membrane (AEM) and cation exchange membrane (CEM) - are used in a variety of electrochemical ...

Kwak, Rhokyun

2013-01-01T23:59:59.000Z

4

Nanofluidic Concentration Device for Biomolecules Utilizing Ion Concentration Polarization: Theory, Fabrication, and Applications  

E-Print Network [OSTI]

Recently, a new type of electrokinetic concentration devices has been developed in a microfluidic chip format, which allows efficient trapping and concentration of biomolecules by utilizing ion concentration polarization ...

Kim, Sung Jae

5

UCLA PHYSICAL CHEMISTRY CONCENTRATION 2012-2013 CHEMISTRY MAJOR (B.S.), PHYSICAL CHEMISTRY CONCENTRATION: This concentration is designed primarily for  

E-Print Network [OSTI]

UCLA PHYSICAL CHEMISTRY CONCENTRATION 2012-2013 CHEMISTRY MAJOR (B.S.), PHYSICAL CHEMISTRY CONCENTRATION: This concentration is designed primarily for Chemistry majors who are interested in attending graduate school in Physical Chemistry/Physics or related areas. It may also satisfy some of the needs

Levine, Alex J.

6

A method of cobalt ion concentration from dilute aqueous solutions  

SciTech Connect (OSTI)

The liquid membrane technique is very useful for metal ions recovery from dilute solutions. Co{sup 2+} ions can be removed and concentrated from wastewaters with an emulsion liquid membrane. The paper describes the permeation of Co{sup 2+} using naphthenic acids as the carrier and kerosene as the membrane material. The inner phase is a HCl 3.162 x 10{sup -4} solution. The extraction yield is more than 96%.

Amanatidou, E. [Technological Education Inst., Kila Kozanis (Greece); Stefanut, M.N.; Grozav, A. [Institute for Chemical and Technological Sciences, Timisoara (Romania)

1996-03-01T23:59:59.000Z

7

MARKETING CONCENTRATION FOR UNDERGRADUATES The marketing concentration, like a major, provides students with an understanding of what customers  

E-Print Network [OSTI]

MARKETING CONCENTRATION FOR UNDERGRADUATES The marketing concentration, like a major, provides to meet this demand. Marketing activities, including product research and concept testing, are explored. Students learn how businesses need marketing to reach and serve customers in order to successfully achieve

Salama, Khaled

8

MAJOR TO CAREER GUIDE B.S. Biology with an Integrative Physiology Concentration  

E-Print Network [OSTI]

MAJOR TO CAREER GUIDE B.S. Biology with an Integrative Physiology Concentration College of Sciences and Evolutionary Biology, Integrative Physiology, and Microbiology. The Ph.D. is research intensive and is designed.unlv.edu/sciences/advising Value of an Integrative Physiology Biology Major Integrative physiology is considered an excellent major

Walker, Lawrence R.

9

MAJOR TO CAREER GUIDE B.S. Biology with an Education Concentration  

E-Print Network [OSTI]

MAJOR TO CAREER GUIDE B.S. Biology with an Education Concentration College of Sciences www Education Career Options The Education concentration is designed for students seeking exceptionally strong with concentrations in Cell and Molecular Biology, Ecology and Evolutionary Biology, Integrative Physiology

Walker, Lawrence R.

10

MAJOR TO CAREER GUIDE B.S. Biology with a Microbiology Concentration  

E-Print Network [OSTI]

MAJOR TO CAREER GUIDE B.S. Biology with a Microbiology Concentration College of Sciences www with concentrations in Cell and Molecular Biology, Ecology and Evolutionary Biology, Integrative Physiology, and Microbiology. The Ph.D. is research intensive and is designed to prepare students for careers in academia

Walker, Lawrence R.

11

1 Combined B.S. with a Major in Chemistry / M.F.S. with a Concentration in Forensic Chemistry COMBINED B.S. WITH A MAJOR  

E-Print Network [OSTI]

1 Combined B.S. with a Major in Chemistry / M.F.S. with a Concentration in Forensic Chemistry COMBINED B.S. WITH A MAJOR IN CHEMISTRY / M.F.S. WITH A CONCENTRATION IN FORENSIC CHEMISTRY REQUIREMENTS A program leading to the B.S. in the field of chemistry and M.F.S. with a concentration in forensic

Vertes, Akos

12

Kinetic dielectric decrement revisited: phenomenology of finite ion concentrations  

E-Print Network [OSTI]

With the help of a recently developed non-equilibrium approach, we investigate the ionic strength dependence of the Hubbard--Onsager dielectric decrement. We compute the depolarization of water molecules caused by the motion of ions in sodium chloride solutions from the dilute regime (0.035 M) up close to the saturation concentration (4.24 M), and find that the kinetic decrement displays a strong nonmonotonic behavior, in contrast to the prediction of available models. We introduce a phenomenological modification of the Hubbard--Onsager continuum theory, that takes into account the screening due to the ionic cloud at mean field level, and, is able to describe the kinetic decrement at high concentrations including the presence of a pronounced minimum.

Marcello Sega; Sofia Kantorovich; Axel Arnold

2014-07-16T23:59:59.000Z

13

Investigation of the ion exchange equilibrium between NA+, Ca++, Mg++, and a sulfonated polystyrene resin at various concentrations  

E-Print Network [OSTI]

INVESTIGATiON OF THE ION EXCHANGE EQUILIBRIUM BETWEEN Na , Ca++, Mg++, AND A SULFONATED POLYSTYRENE RESIN AT VARIOUS CONCENTRATIONS A THESIS BY WILLIAM FRANKLIN McILHENNY Submitted to the Graduate School of the Agricultural and Mechanical... College of Texas in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE January 1958 MaJor Subject: Chemical Engineering INVESTIGATION OF THE ION EXCHANGE EQUILIBRIUM BFTWEEN Na+, Ca++ Mg++ AND A SULFONATED POLYSTYRENE RESIN...

McIlhenny, William Franklin

1958-01-01T23:59:59.000Z

14

Coherent anti-stokes Raman spectroscopy system for point temperature and major species concentration measurement  

SciTech Connect (OSTI)

The Coherent anti-Stokes Raman Spectroscopy system (CARS) has been developed as a laser-based, advanced, combustion-diagnostic technique to measure temperature and major species concentration. Principles of operation, description of the system and its capabilities, and operational details of this instrument are presented in this report.

Singh, J.P.; Yueh, Fang-Yu

1993-10-01T23:59:59.000Z

15

Group Entry Team Members Project name Advisor G/U MajorConcentration GL 40 Abdul Azeez  

E-Print Network [OSTI]

Group Entry Team Members Project name Advisor G/U MajorConcentration GL 40 Abdul Azeez A STUDY Members Project name Advisor G/U MajorConcentration 5/11/2011 5:00:00 PM SORTED BY GRAD Advisor G/U MajorConcentration 5/11/2011 5:00:00 PM SORTED BY GRAD/UNDERGRAD AND ALPHA OF PARTICIPANTS GL

16

Atmospheric Environment 38 (2004) 14171423 Measurements of ion concentration in gasoline and diesel  

E-Print Network [OSTI]

Atmospheric Environment 38 (2004) 1417­1423 Measurements of ion concentration in gasoline of a gasoline engine (K-car) and a diesel engine (diesel generator). Under the experimental set-up reported all of the ions smaller than 3 nm in the gasoline engine exhaust, and is above 2.7 ? 108 cm?3

Yu, Fangqun

17

PUBLISHED VERSION Effect of the minority concentration on ion cyclotron resonance heating in presence of the ITER-  

E-Print Network [OSTI]

PUBLISHED VERSION Effect of the minority concentration on ion cyclotron resonance heating.1063/1.4864528 #12;Effect of the minority concentration on ion cyclotron resonance heating in presence of the ITER, 17 Feb 2014 11:52:30 #12;Effect of the minority concentration on ion cyclotron resonance heating

18

Concentrated ion beam emitted from an enlarged cylindrical-anode-layer Hall plasma accelerator and mechanism  

SciTech Connect (OSTI)

An enlarged cylindrical-anode-layer Hall plasma accelerator with an outlet diameter of 150 mm is experimentally demonstrated to produce a concentrated ion beam, especially at a high discharge voltage, with a high current utilization efficiency of up to {approx}0.9. Numerical investigation based on the three-dimensional particle-in-cell method is performed to study the ion dynamics and elucidate the origin of the ion beam characteristics. The simulation results reveal that the equipotential lines play an important role in the surface near the anode emitting the ions. The ion emitting surface is determined by the magnetic field lines near the anode and the magnetic mirror contributes to the concentrated beam significantly. The high current utilization efficiency results from the appropriate obliquity of the magnetic mirror.

Geng, S. F.; Wang, C. X. [Southwestern Institute of Physics, Chengdu 610041 (China); Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon (Hong Kong); Tang, D. L.; Qiu, X. M. [Southwestern Institute of Physics, Chengdu 610041 (China); Chu, Paul K. [Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon (Hong Kong)

2013-01-28T23:59:59.000Z

19

Variability and trends of major stratospheric warmings in simulations under constant and increasing GHG concentrations  

Science Journals Connector (OSTI)

Ensemble simulations with a coupled ocean-troposphere-stratosphere model for the pre-industrial era (1860 AD), late twentieth century (1990 AD) greenhouse gas (GHG) concentrations, the SRES scenarios B1, A1B ... ...

S. Schimanke; T. Spangehl; H. Huebener; U. Cubasch

2013-04-01T23:59:59.000Z

20

Department of Anthropology BA Degree: 120 hours: Major in Anthropology with Concentration in Applied Anthropology  

E-Print Network [OSTI]

consult with departmental advisor; no pre-requisite courses; change of major form accepted year; required during pre-registration for all students with GPA below 2.2; recommended at least once per year demonstrate competence at the level of the first semester of 2000-level in a language in the Roman alphabet

Raja, Anita

Note: This page contains sample records for the topic "major ion concentrations" 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

Ground level concentration of sulfur dioxide at Kuwait`s major population centers during the oil-field fires  

SciTech Connect (OSTI)

During the Iraqi occupation, Kuwait`s oil wells were ignited. the fires were damaging to the country`s oil resources and air quality. The impact of the oil-field fires on the air quality was studied to determine the level of exposure to pollutants in major population centers. The period of July-September 1991 was selected for examination. A mathematical model was used to compute the ground-level concentration isopleths. The results of these computations are supported by significant concentrations measured and reported by the Environmental Protection Council, Kuwait. The ground-level concentrations of sulfur dioxide in the major population centers, whether measure or estimated, were less than the ambient standards of the U.S. Environmental Protection Agency`s air pollution index. The dispersive characteristics were classified according to wind conditions. The results of this assessment provide historical data on Kuwait`s oil fires and may be useful in assessing risks resulting from this catastrophe. 6 refs., 10 fig., 2 tab.

Al-Ajmi, D.N.; Marmoush, Y.R. [Kuwait Institute for Scientific Research (Kuwait)] [Kuwait Institute for Scientific Research (Kuwait)

1996-08-01T23:59:59.000Z

22

Calculation of multicomponent ionic diffusion from zero to high concentration: II. Inclusion of associated ion species  

SciTech Connect (OSTI)

This paper presents a theoretical model of multicomponent ionic diffusion which is valid to high concentration for systems which show ion association. The results of the authors' formulations are contrasted with those of more simplified models for systems containing Na{sub 2}SO{sub 4} and MgSO{sub 4}, as well as for multicomponent natural seawater. The differences between their model and simplified models are significant, especially at high concentration. Inconsistencies which may develop with the use of the simplified approaches are demonstrated. The authors' approach requires considerable data which are not available at temperatures other than 25{degree}C. Therefore, other approaches which are based only on data at infinite dilution are of great interest. They show here that, if chemical potential derivatives are included in the infinite dilution model of Nernst and Hartley which uses only infinite dilution mobilities, the model can be extended to slightly concentrated solutions. This extended Nernst-Hartley model gives good agreement with all of the existing experimental mutual diffusion coefficient data at concentrations below about 0.2 M in the six component system Na-K-Ca-Mg-Cl-SO{sub 4}-H{sub 2}O. This may be the most reliable way to extend infinite dilution data into more concentrated regions. In the systems they have studied, the inclusion of ion-association species for weakly interacting species does not appear to provide significant improvement over the generalized Nernst-Hartley model.

Felmy, A.R.; Weare, J.H. (Univ. of California, San Diego, La Jolla (USA))

1991-01-01T23:59:59.000Z

23

Method and source for producing a high concentration of positively charged molecular hydrogen or deuterium ions  

DOE Patents [OSTI]

One principal object of the present invention is to provide a novel method and apparatus for generating a high concentration of H/sub 2//sup +/ or D/sub 2//sup +/ ions by using a new and improved multicusp ion source. The basic principle in achieving a high percentage of H/sub 2//sup +/ or D/sub 2//sup +/ ions is to extract them from the source as soon as they are produced. Otherwise they will react with background gas molecules to form tri-atomic ions H/sub 3//sup +/ or D/sub 3//sup +/ or be dissociated by electrons. The former reaction H/sub 2//sup +/ + H/sub 2/ ..-->.. H/sub 3//sup +/ + H can have a very short mean free path length lambda. Assuming a background neutral gas density of approximately 3.3 x 10/sup 13/ cm/sup -3/ and a cross-section sigma of approximately 6 x 10/sup -15/ cm/sup 2/, lambda = (n/sub 0/ sigma)/sup -1/ is estimated to be about 5 cm. Thus the distance traversed by the H/sub 2//sup +/ ion before it arrives at the extractor electrode cannot exceed this value. This in turn sets a limit on the length of the source chamber.

Ehlers, K.W.; Leung, K.N.

1983-07-26T23:59:59.000Z

24

Electric double layer for spherical particles in salt-free concentrated suspensions including ion size effects  

E-Print Network [OSTI]

The equilibrium electric double layer (EDL) that surrounds the colloidal particles is determinant for the response of a suspension under a variety of static or alternating external fields. An ideal salt-free suspension is composed by the charged colloidal particles and the ionic countercharge released by the charging mechanism. The existing macroscopic theoretical models can be improved by incorporating different ionic effects usually neglected in previous mean-field approaches, which are based on the Poisson-Boltzmann equation (PB). The influence of the finite size of the ions seems to be quite promising because it has been shown to predict phenomena like charge reversal, which has been out of the scope of classical PB approximations. In this work we numerically obtain the surface electric potential and the counterions concentration profiles around a charged particle in a concentrated salt-free suspension corrected by the finite size of the counterions. The results show the large importance of such corrections for moderate to high particle charges at every particle volume fraction, specially, when a region of closest approach of the counterions to the particle surface is considered. We conclude that finite ion size considerations are obeyed for the development of new theoretical models to study nonequilibrium properties in concentrated colloidal suspensions, particularly the salt-free ones with small and highly charged particles.

R. Roa; F. Carrique; E. Ruiz-Reina

2011-02-17T23:59:59.000Z

25

Quantification of Dopant Concentrations in Diluted Magnetic Semiconductors using Ion Beam Techniques  

SciTech Connect (OSTI)

It has recently been demonstrated that magnetically doped TiO2 and SnO2 show ferromagnetism at room-temperature and Curie temperatures above room temperature. However, accurate knowledge of dopant concentrations is necessary to quantify magnetic moments in these materials. Rutherford Backscattering spectrometry (RBS) is one of the powerful techniques to quantify magnetic transition metal dopant concentrations in these materials. However, in some cases, the interference of RBS signals for different dopants and substrate elements in these materials makes analysis difficult. In this work, we demonstrate that particle induced x-ray emission (PIXE) can be successfully used to quantify the magnetic transition element dopants in several room temperature ferromagnetic materials synthesized using three different synthesis methods: oxygen plasma assisted molecular beam epitaxy, ion implantation and wet chemical methods.

Shutthanandan, V.; Thevuthasan, Suntharampillai; Droubay, Timothy C.; Kaspar, Tiffany C.; Punnoose, Alex; Hays, Jason; Chambers, Scott A.

2006-08-01T23:59:59.000Z

26

CONCENTRATES  

Science Journals Connector (OSTI)

SHIN-ETSU MAKES FIRST MAJOR CHINA INVESTMENT ... Although China is a major market for Shin-Etsu, Japans most profitable chemical maker, the company has until now refrained from making large investments there because it perceived the political risk to be too great. ... Citing rising global demand from tire makers, Lanxess says it will invest about $25 million to raise butyl and halobutyl rubber capacity at its site in Zwijndrecht, Belgium. ...

2010-07-05T23:59:59.000Z

27

Effect of impurities on the transition concentration of helium-3 ions in (3He)-H tokamak plasmas heated with ICRH  

E-Print Network [OSTI]

Hydrogen majority plasmas will be used in the initial non-activated phase of ITER operation. Optimizing ion cyclotron resonance heating (ICRH) in such scenarios will help in achieving H-mode in these plasmas. Past JET experiments with the carbon wall revealed a significant impact of intrinsic impurities on the ICRH performance in (3He)-H plasmas. High plasma contamination with carbon impurities resulted in the appearance of a supplementary mode conversion layer and significant reduction in the transition concentration of 3He minority ions, defined as the concentration at which the change from minority heating to mode conversion regime occurs. In view of the installation of the new ITER-like wall at JET, it is important to evaluate the effect of Be and W impurities on ICRH scenarios in (3He)-H plasmas. In this paper, an approximate analytical expression for the transition concentration of 3He minority ions is derived as a function of plasma and ICRH parameters, and accounting for typical impurity species at JE...

Kazakov, Ye O; Van Eester, D

2013-01-01T23:59:59.000Z

28

Quantitative evaluation of hydrogen sulfide at 0.3 M and 1.0 M-hydrogen-ion concentration  

E-Print Network [OSTI]

. In the present study, cobalt sulfide was quantitatively re? covered from a solution whose hydrogen-ion concentration -12was calculated to be 6.95 x 10 M. As in the case of zinc sulfide, this was to be expected, since a decreased hydrogen-ion concentration... quantitatively to an electrolysis beaker with distilled water. The copper 28 was deposited on a platinum gauze cathode in 9 hours from a solution containing a 5 ml. excess of 18 M sulfuric acid in 125 ml., and a current of 0.5 ampere. 12. Copper (II) - Zinc...

Machel, Albert R.

1958-01-01T23:59:59.000Z

29

Influence of earth gravity on reaction engineering of tubular reactor for high concentration tungsten ion-exchange  

Science Journals Connector (OSTI)

The influence of gravity on the reaction engineering of tubular reactor is studied by analyzing the residence time distribution curves. The results show that upflow-feeding mode is more beneficial compared with downflow-feeding mode, since the flow pattern of the fluid in the reactor is closer to plug flow. The result of dynamic experiment conducted in ion-exchange of tungsten metallurgy is as good as that in reaction engineering of ion-exchange column. Whether downflow-feeding or upflow-feeding mode is adopted, breakthrough time decreases when solution concentration increases. Upflow-feeding mode has longer breakthrough time and greater improvement in adsorption capacity especially with high WO3 concentration in ion-exchange.

Zhong-wei ZHAO; Lu-ping XIAO; Chi-hao GUO; Xing-yu CHEN; Ai-liang CHEN; Guang-sheng HUO; Hong-gui LI

2010-01-01T23:59:59.000Z

30

EPR studies of phase transitions in cadmium calcium acetate hexahydrate as a function of different paramagnetic impurity-ion concentrations  

Science Journals Connector (OSTI)

The phase transition in cadmium calcium acetate hexahydrate (CCDAH) has been studied in detail with electron paramagnetic resonance (EPR) as a function of two different paramagnetic ion concentrations, namely, Cu2+ and Mn2+ ions. The change in transition temperature (122143 K) with Cu2+ ion concentrations is explained in terms of mean-field theory and a soft vibrational mode of the -Ca-Cd1-xCux-Ca- chain along the c axis of the crystal. While the same theory can also explain our observed transition temperature (118128 K) as a function of the Mn2+ ion concentration in this crystal, it does not explain why the limiting value of the transition temperature (i.e., 145 K) of CaCd1-xCux(CH3COO)4?6H2O as x tends to zero, is strikingly different from the limiting value of (?128.4 K) of CaCd1-xMnx(CH3COO)4?6H2O as x tends to zero. The same theory also successfully explains the absence of any phase transition in isomorphous CaCu(CH3COO)4?6H2O. The value of -dTc/dx is significantly higher with Mn2+ than with Cu2+ in CCDAH.

F. A. Oguama; H. Shields; D. K. De

1997-08-01T23:59:59.000Z

31

Effect of the minority concentration on ion cyclotron resonance heating in presence of the ITER-like wall in JET  

SciTech Connect (OSTI)

The most recent JET campaign has focused on characterizing operation with the 'ITER-like' wall. One of the questions that needed to be answered is whether the auxiliary heating methods do not lead to unacceptably high levels of impurity influx, preventing fusion-relevant operation. In view of its high single pass absorption, hydrogen minority fundamental cyclotron heating in a deuterium plasma was chosen as the reference wave heating scheme in the ion cyclotron domain of frequencies. The present paper discusses the plasma behavior as a function of the minority concentration X[H] in L-mode with up to 4MW of RF power. It was found that the tungsten concentration decreases by a factor of 4 when the minority concentration is increased from X[H] ? 5% to X[H] % 20% and that it remains at a similar level when X[H] is further increased to 30%; a monotonic decrease in Beryllium emission is simultaneously observed. The radiated power drops by a factor of 2 and reaches a minimum at X[H] ? 20%. It is discussed that poor single pass absorption at too high minority concentrations ultimately tailors the avoidance of the RF induced impurity influx. The edge density being different for different minority concentrations, it is argued that the impact ICRH has on the fate of heavy ions is not only a result of core (wave and transport) physics but also of edge dynamics and fueling.

Van Eester, D.; Lerche, E.; Cromb, K.; Jachmich, S. [LPP-ERM/KMS, Association Euratom-Belgian State, TEC Partner, Brussels (Belgium); Jacquet, P.; Graham, M.; Kiptily, V.; Matthews, G.; Mayoral, M.-L.; Mc Cormick, K.; Monakhov, I.; Noble, C.; Rimini, F.; Solano, E. R. [Euratom-CCFE Fusion Association, Culham Science Centre (United Kingdom); Bobkov, V.; Maggi, C.; Neu, R.; Ptterich, T. [MPI fr Plasmaphysik Euratom Assoziation, Garching (Germany); Czarnecka, A. [Institute of Plasma Physics and Laser Microfusion, Warsaw (Poland); Coenen, J. W. [IEK-4, EURATOM-FZJ, TEC Partner, Jlich (Germany); and others

2014-02-12T23:59:59.000Z

32

Quantitative Determination of Deuterium Atom Concentration in Zinc Oxide Thin Films by Time-of-Flight Secondary Ion Mass Spectrometry  

SciTech Connect (OSTI)

ZnO is a wide-gap semiconductor with very interesting electronic properties.[1,2] Therefore, it has been extensively studied for many years. It has been found that even low centrations of hydrogen in ZnO film can considerably change its electronic behavior.[3-5] Quite a few papers have discussed this issue but it has not been fully understood. Lack of experimental data, especially quantitative data on hydrogen concentration in ZnO samples is an important reason. Dynamic SIMS is the best technique to determine concentration of hydrogen atoms in materials.[6-9] However, it is a very specific technique and the entation is mostly available in semiconductor industry. ToF-SIMS is a more versatile instrument and it is more available in universities and research institutes. Background hydrogen interference has been known to be a serious problem in quantifying hydrogen atoms in solid samples. Although SIMS is an ultra-high vacuum (UHV) technique, there are still some residual gases existing in vacuum chambers during analysis. Most of them are H2, H2O or CH4, which lead to a background that greatly interferes quantitative detection of hydrogen. Therefore, deuterium atoms have been intentionally introduced into the system to avoid this problem. Standard samples are very important for SIMS quantitative analysis. A common method to prepare such kind of standard samples is ion-implanting. Therefore, a set of standard D-ZnO samples were prepared by ion-implanting in our work. In this paper, we report using ToF-SIMS to quantitatively determine the concentration of deuterium atoms in a number of high-quality epitaxial ZnO films, with a set of standard samples as references. We are especially interested in the detection limit of deuterium concentration in ZnO. In addition, hydrogen background interference was also investigated.

Zhu, Zihua; Shutthanandan, V.; Li, Yuanjie; Chambers, Scott A.

2009-03-01T23:59:59.000Z

33

The active dopant concentration in ion implanted indium tin oxide thin films  

Science Journals Connector (OSTI)

The effect of oxygen ion implantation on the electrical and optical properties of Sn?doped In2O3 (ITO) thin films sputter deposited from a planar magnetron source on glass substrates is described. The films were characterized as a function of the implanted dose (3101311016 O+ cm?2) by Hall effect resistivity and optical transmission measurements. The dependencies observed are explained in terms of the deactivation of the Sn dopant and the removal of oxygen vacancies. In this way an estimate of the amount of electrically active Sn contributing to the carrier density in as?deposited films was obtained. Furthermore the accompanying changes in the band gap with decreasing free?carrier density could be explained quantitatively in terms of the BursteinMoss effect.

T. J. Vink; M. H. F. Overwijk; W. Walrave

1996-01-01T23:59:59.000Z

34

The effects of amine additives and flow rate on the performance of mixed-bed ion exchange at ultralow concentrations  

Science Journals Connector (OSTI)

Experimental data were obtained to evaluate the effects of amine additives for pH control of solution and the ... performance of mixed-bed ion exchange for the removal of ionic impurities in solution. The experim...

Byeong Il Noh; Gang Choon Lee; Tae Kyung Yoon

2005-05-01T23:59:59.000Z

35

The roles of non-extensivity and dust concentration as bifurcation parameters in dust-ion acoustic traveling waves in magnetized dusty plasma  

SciTech Connect (OSTI)

Dust ion-acoustic traveling waves are studied in a magnetized dusty plasma in presence of static dust and non-extensive distributed electrons in the framework of Zakharov-Kuznesstov-Burgers (ZKB) equation. System of coupled nonlinear ordinary differential equations is derived from ZKB equation, and equilibrium points are obtained. Nonlinear wave phenomena are studied numerically using fourth order Runge-Kutta method. The change from unstable to stable solution and consequently to asymptotic stable of dust ion acoustic traveling waves is studied through dynamical system approach. It is found that some dramatical features emerge when the non-extensive parameter and the dust concentration parameters are varied. Behavior of the solution of the system changes from unstable to stable and stable to asymptotic stable depending on the value of the non-extensive parameter. It is also observed that when the dust concentration is increased the solution pattern is changed from oscillatory shocks to periodic solution. Thus, non-extensive and dust concentration parameters play crucial roles in determining the nature of the stability behavior of the system. Thus, the non-extensive parameter and the dust concentration parameters can be treated as bifurcation parameters.

Narayan Ghosh, Uday; Kumar Mandal, Pankaj, E-mail: pankajwbmsd@gmail.com; Chatterjee, Prasanta [Department of Mathematics, Siksha Bhavana Visva Bharati, Santiniketan, West Bengal 731235 (India)] [Department of Mathematics, Siksha Bhavana Visva Bharati, Santiniketan, West Bengal 731235 (India)

2014-03-15T23:59:59.000Z

36

Accurate and Precise Determination of Boron Isotopic Ratios at Low Concentration by Positive Thermal Ionization Mass Spectrometry Using Static Multicollection of Cs2BO2+ Ions  

Science Journals Connector (OSTI)

Accurate and Precise Determination of Boron Isotopic Ratios at Low Concentration by Positive Thermal Ionization Mass Spectrometry Using Static Multicollection of Cs2BO2+ Ions ... (1) A relatively large mass difference (10%) between the two isotopes and high volatility results in significant boron isotopic variation from ?70(2) to +75(3) in natural materials; thus, boron isotopes have numerous applications in geochemistry, isotope hydrology, oceanography, environmental sciences, cosmology, and nuclear technology. ... (2) Our method provided better long-term stability of NIST 951 standard compared to Zoom Quad mode when more than two isotopes were determined in addition to boron isotope. ...

Mao-yong He; Ying-kai Xiao; Zhang-dong Jin; Yun-qi Ma; Jun Xiao; Yan-ling Zhang; Chong-guang Luo; Fei Zhang

2013-05-29T23:59:59.000Z

37

Undergraduate Major Advising Handbook  

E-Print Network [OSTI]

Undergraduate Major Advising Handbook 2013-2014 San José State University College of Applied STATE UNIVERSITY STUDENT ADVISING HANDBOOK Table of Contents Page Introduction Undergraduate Advising Worksheet....... . .13 The Emphases/Concentration in Kinesiology Adapted Physical

Su, Xiao

38

Undergraduate Major Advising Handbook  

E-Print Network [OSTI]

Undergraduate Major Advising Handbook 2012-2013 San José State University College of Applied STATE UNIVERSITY STUDENT ADVISING HANDBOOK Table of Contents Page Introduction Undergraduate Advising Worksheet....... 13 The Emphases/Concentration in Kinesiology Adapted Physical Activity

Su, Xiao

39

PROPOSED PORTHOLE FOR ASTRONOMY MAJORS Information for Astronomy Majors  

E-Print Network [OSTI]

PROPOSED PORTHOLE FOR ASTRONOMY MAJORS Information for Astronomy Majors The Astronomy Major sciences such as Astronomy, Physics, or Engineering. (Link to details on Astrophysics Concentration) The General Astronomy Concentration is intended for students who do not plan on research careers in astronomy

Richardson Jr., James E.

40

Ion exchange kinetics of cesium for various reaction designs using crystalline silicotitanate, UOP IONSIV IE-911  

E-Print Network [OSTI]

, the major component of CST, slowly dissolved at hydrogen peroxide concentrations greater than 1 M. A simple and novel experimental apparatus for a single-layer ion exchange column was developed to generate experimental data for estimation...

Kim, Sung Hyun

2004-09-30T23:59:59.000Z

Note: This page contains sample records for the topic "major ion concentrations" 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

Salinity tolerance in plants: attempts to manipulate ion transport  

E-Print Network [OSTI]

Ion transport is the major determining factor of salinity tolerance in plants. A simple scheme of a plant cell with ion fluxes provides basic understanding of ion transport and the corresponding changes of ion concentrations under salinity. The review describes in detail basic principles of ion transport for a plant cell, introduces set of transporters essential for sodium and potassium uptake and efflux, analyses driving forces of ion transport and compares ion fluxes measured by several techniques. Study of differences in ion transport between salt tolerant halophytes and salt-sensitive plants with an emphasis on transport of potassium and sodium via plasma membranes offers knowledge for increasing salinity tolerance. Effects of salt stress on ion transport properties of membranes show huge opportunities for manipulating ion transport. Several attempts to overexpress or knockout ion transporters for changing salinity tolerance are described. Future perspectives are questioned with more attention given to potential candidate ion channels and transporters for altered expression. The potential direction of increasing salinity tolerance by modifying ion channels and transporters is discussed and questioned. An alternative approach from synthetic biology is to modify the existing membrane transport proteins or create new ones with desired properties for transforming agricultural crops. The approach had not been widely used earlier and leads also to theoretical and pure scientific aspects of protein chemistry, structure-function relations of membrane proteins, systems biology and physiology of stress and ion homeostasis.

Vadim Volkov

2014-11-06T23:59:59.000Z

42

High affinity capture and concentration of quinacrine in polymorphonuclear neutrophils via vacuolar ATPase-mediated ion trapping: Comparison with other peripheral blood leukocytes and implications for the distribution of cationic drugs  

SciTech Connect (OSTI)

Many cationic drugs are concentrated in acidic cell compartments due to low retro-diffusion of the protonated molecule (ion trapping), with an ensuing vacuolar and autophagic cytopathology. In solid tissues, there is evidence that phagocytic cells, e.g., histiocytes, preferentially concentrate cationic drugs. We hypothesized that peripheral blood leukocytes could differentially take up a fluorescent model cation, quinacrine, depending on their phagocytic competence. Quinacrine transport parameters were determined in purified or total leukocyte suspensions at 37 C. Purified polymorphonuclear leukocytes (PMNLs, essentially neutrophils) exhibited a quinacrine uptake velocity inferior to that of lymphocytes, but a consistently higher affinity (apparent K{sub M} 1.1 vs. 6.3 ?M, respectively). However, the vacuolar (V)-ATPase inhibitor bafilomycin A1 prevented quinacrine transport or initiated its release in either cell type. PMNLs capture most of the quinacrine added at low concentrations to fresh peripheral blood leukocytes compared with lymphocytes and monocytes (cytofluorometry). Accumulation of the autophagy marker LC3-II occurred rapidly and at low drug concentrations in quinacrine-treated PMNLs (significant at ? 2.5 ?M, ? 2 h). Lymphocytes contained more LAMP1 than PMNLs, suggesting that the mass of lysosomes and late endosomes is a determinant of quinacrine uptake V{sub max}. PMNLs, however, exhibited the highest capacity for pinocytosis (uptake of fluorescent dextran into endosomes). The selectivity of quinacrine distribution in peripheral blood leukocytes may be determined by the collaboration of a non-concentrating plasma membrane transport mechanism, tentatively identified as pinocytosis in PMNLs, with V-ATPase-mediated concentration. Intracellular reservoirs of cationic drugs are a potential source of toxicity (e.g., loss of lysosomal function in phagocytes). - Highlights: Quinacrine is concentrated in acidic organelles via V-ATPase-mediated ion trapping. Human peripheral blood leukocytes capture and concentrate quinacrine. Polymorphonuclear leukocytes do so with higher apparent affinity. Polymorphonuclear are also more competent than lymphocytes for pinocytosis.

Roy, Caroline; Gagn, Valrie; Fernandes, Maria J.G.; Marceau, Franois, E-mail: francois.marceau@crchul.ulaval.ca

2013-07-15T23:59:59.000Z

43

PSYCHOLOGY MAJORS --1 PSYCHOLOGY MAJORS --2  

E-Print Network [OSTI]

PSYCHOLOGY MAJORS -- 1 #12;PSYCHOLOGY MAJORS -- 2 Handbook for Undergraduate Psychology Majors......................................................................................................................................2 A. Psychology Program Goals and Purpose B. Declaration of Major C. History of Marquette University D. Facilities E. Graduate Program in Clinical Psychology 2. Department Faculty and Staff

Sanders, Matthew

44

Electrolyte-Concentration and Ion-Size Dependence of Excited-State Intramolecular Charge-Transfer Reaction in (Alkylamino)benzonitriles: Steady-State Spectroscopic Studies  

E-Print Network [OSTI]

)benzonitrile (P6C), in ethyl acetate and acetonitrile in presence of lithium perchlorate (LiClO4) at room relative to that in pure ethyl acetate whereas it is a factor of 4 for both P5C and P6C. However as the electrolyte (LiClO4) concentration is increased, electrolyte effects being more pronounced in ethyl acetate

Biswas, Ranjit

45

Scaling the Ion Trap Quantum Processor  

Science Journals Connector (OSTI)

...atomic ion species to act as "refrigerator" ions to quench the...scale beyond the QCCD in a modular architecture, one can link separate...trapped ion technology. (A) Modular distributed...A major challenge in both modular quantum computer...

C. Monroe; J. Kim

2013-03-08T23:59:59.000Z

46

Concentrating Information  

E-Print Network [OSTI]

We introduce the concentrated information of tripartite quantum states. For three parties Alice, Bob and Charlie, it is defined as the maximal mutual information achievable between Alice and Charlie via local operations and classical communication performed by Charlie and Bob. The gap between classical and quantum concentrated information is shown to be an operational figure of merit for a state merging protocol involving shared mixed states and no distributed entanglement. We derive upper and lower bounds on the concentrated information, and obtain a closed expression for arbitrary pure tripartite states in the asymptotic setting. In this situation, one-way classical communication is shown to be sufficient for optimal information concentration.

Alexander Streltsov; Soojoon Lee; Gerardo Adesso

2014-10-23T23:59:59.000Z

47

The Marketing Concentration  

E-Print Network [OSTI]

The Marketing Concentration The Manning School of Business www.uml.edu/management Who We Are, management, management information systems, marketing and supply chain and operations management we provide education possible." -- Andy Hwang Marketing Major "I chose UMass Lowell because of its high level

Massachusetts at Lowell, University of

48

Trumping and Power Majorization  

E-Print Network [OSTI]

Majorization is a basic concept in matrix theory that has found applications in numerous settings over the past century. Power majorization is a more specialized notion that has been studied in the theory of inequalities. On the other hand, the trumping relation has recently been considered in quantum information, specifically in entanglement theory. We explore the connections between trumping and power majorization. We prove an analogue of Rado's theorem for power majorization and consider a number of examples.

David W. Kribs; Rajesh Pereira; Sarah Plosker

2012-10-24T23:59:59.000Z

49

Internships for Physics Majors  

Broader source: Energy.gov [DOE]

Fermilab's IPM program offers ten-week summer internships to outstanding undergraduate physics majors. This program has been developed to familiarize students with opportunities at the frontiers of...

50

Ion source  

DOE Patents [OSTI]

A magnetic filter for an ion source reduces the production of undesired ion species and improves the ion beam quality. High-energy ionizing electrons are confined by the magnetic filter to an ion source region, where the high-energy electrons ionize gas molecules. One embodiment of the magnetic filter uses permanent magnets oriented to establish a magnetic field transverse to the direction of travel of ions from the ion source region to the ion extraction region. In another embodiment, low energy 16 eV electrons are injected into the ion source to dissociate gas molecules and undesired ion species into desired ion species.

Leung, Ka-Ngo (Hercules, CA); Ehlers, Kenneth W. (Alamo, CA)

1984-01-01T23:59:59.000Z

51

for Undergraduate CHEMISTRY MAJORS  

E-Print Network [OSTI]

and Marketing, Consulting, Environmental Chemistry, Chemical Education, Chemical Engineering, ChemicalHANDBOOK for Undergraduate CHEMISTRY MAJORS DEPARTMENT OF CHEMISTRY Fall 2010 #12;#12;TABLE OF CONTENTS A Career in Chemistry - What It Means ___________________________________________ 4 What do

Stuart, Steven J.

52

MECHANICAL ENGINEERING UNDERGRADUATE MAJOR  

E-Print Network [OSTI]

HANDBOOK FOR MECHANICAL ENGINEERING UNDERGRADUATE MAJOR Old Dominion University Department of Mechanical Engineering Batten College of Engineering and Technology Norfolk, Virginia 23529-0247 #12;TABLE OF CONTENTS MECHANICAL ENGINEERING HANDBOOK

53

Effect of concentration polarization on permselectivity  

E-Print Network [OSTI]

In this paper, the variation of permselectivity in the course of concentration polarization is systematically analyzed for a three-layer membrane system consisting of a nonperfectly permselective ion exchange membrane, ...

abu-Rjal, Ramadan

54

ION HEATING WITH RF FIELDS NEAR THE ION CYCLOTRON FREQUENCY J. D. Barter, J. C. Sprott  

E-Print Network [OSTI]

ION HEATING WITH RF FIELDS NEAR THE ION CYCLOTRON FREQUENCY by J. D. Barter, J. C. Sprott November. Our experiments of the past year, however, indicate that ion cyclotron resonance heating transmitted without consent of the author and major professor. #12;For several years we have been heating ions

Sprott, Julien Clinton

55

Contract Major Report Form Name __________________________  

E-Print Network [OSTI]

Contract Major Report Form 12/1/94 Name __________________________ Degree __________________________ College __________________________ Descriptive title of contract major _______________________________________________ Current GAP is ___________ in ___________________ hours attempted. Summary of Proposed contract Major 1

Kostic, Milivoje M.

56

Undergraduate Education DECLARATION OF MAJOR(S) / CHANGE OF ADVISOR  

E-Print Network [OSTI]

Undergraduate Education DECLARATION OF MAJOR(S) / CHANGE OF ADVISOR For Liberal Arts Students Updated 7/31/2014 Please inform your previous advisor(s) of any major or advisor changes prior A MAJOR I am declaring a major in ________________________________________________ Major advisor

Dennett, Daniel

57

Ion Implantation for Surface Engineering  

Science Journals Connector (OSTI)

Low energy accelerators are used widely for the modification of materials and in research on material properties. The ion implantation of semiconductors becomes an industrial application of major importance. T...

P. Mazzoldi

1992-01-01T23:59:59.000Z

58

Get a major competitive  

E-Print Network [OSTI]

courses in creativity, entrepreneurship, ethics and leadership. #12;It's like enrolling in a Collision that energy moves things forward. + #12;Many Majors. Innovation Academy students can choose from anyATIvITy In ACTIOn PrACTICum Focuses on the development of creative problem-solving strategies through the completion

Mazzotti, Frank

59

ADVERTISING MAJOR REQUIREMENTS CHECKLIST  

E-Print Network [OSTI]

ADVERTISING MAJOR REQUIREMENTS CHECKLIST Name: ID#: Expected Graduation Date: Course Number and Title Waiver/Substitution Semester Units FOUNDATION (16 units required) ADVT 341 Advertising Principles & Practice (4) PLUS COMS 202 Rhetoric and the Public Sphere (4) OR RHET 216 Writing for Advertising (4) PLUS

Galles, David

60

DOUBLE MAJORS Imaging Science + ...  

E-Print Network [OSTI]

DOUBLE MAJORS Imaging Science + ... Applied Mathematics Biomedical Sciences Computer Science Undergraduate Research Internships and Cooperative Education (Co-op) (optional) Study Abroad WHY IMAGING SCIENCE Science: BS, MS, PhD Color Science: MS, PhD BS + MS/PhD Combos HUMAN VISION BIO- MEDICAL ASTRO- PHYSICS

Zanibbi, Richard

Note: This page contains sample records for the topic "major ion concentrations" 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

LANL: Ion Beam Materials Laboratory  

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

Ion Beam Materials Laboratory (IBML) is a Los Ion Beam Materials Laboratory (IBML) is a Los Alamos National Laboratory resource devoted to materi- als research through the use of ion beams. Current major research areas include surface characterization through ion beam analysis techniques, surface modification and materials synthesis through ion implantation technology, and radiation damage stud- ies in gases, liquids, and solids. The laboratory's core is a 3.2 MV tandem ion accelerator and a 200 kV ion implanter together with several beam lines. Attached to each beam line is a series of experimental stations that support various research programs. The operation of IBML and its interactions with users are organized around core facilities and experimental stations. The IBML provides and operates the core facilities as well as supports

62

Unambiguous mass determination of major stratospheric positive ions  

Science Journals Connector (OSTI)

... with a balloon-borne mass spectrometer, flown on 16 June 1980 with a 100,000m3 stratospheric balloon at mid-latitude (CNES launching base at Gap-Tallard, France, 4433'N). ...

E. Arijs; D. Nevejans; J. Ingels

1980-12-18T23:59:59.000Z

63

Partial molal volumes of some major ions in seawater  

Science Journals Connector (OSTI)

pure water to seawater does not vary with temperature. .... three scawaters were filtered, then sealed into ampoules used for standard seawater storage.

2000-01-05T23:59:59.000Z

64

An experiment on the dynamics of ion implantation and sputtering of surfaces  

SciTech Connect (OSTI)

A major impediment towards a better understanding of the complex plasma-surface interaction is the limited diagnostic access to the material surface while it is undergoing plasma exposure. The Dynamics of ION Implantation and Sputtering Of Surfaces (DIONISOS) experiment overcomes this limitation by uniquely combining powerful, non-perturbing ion beam analysis techniques with a steady-state helicon plasma exposure chamber, allowing for real-time, depth-resolved in situ measurements of material compositions during plasma exposure. Design solutions are described that provide compatibility between the ion beam analysis requirements in the presence of a high-intensity helicon plasma. The three primary ion beam analysis techniques, Rutherford backscattering spectroscopy, elastic recoil detection, and nuclear reaction analysis, are successfully implemented on targets during plasma exposure in DIONISOS. These techniques measure parameters of interest for plasma-material interactions such as erosion/deposition rates of materials and the concentration of plasma fuel species in the material surface.

Wright, G. M.; Barnard, H. A.; Kesler, L. A.; Peterson, E. E.; Stahle, P. W.; Sullivan, R. M.; Whyte, D. G.; Woller, K. B. [Plasma Science and Fusion Center, MIT, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139 (United States)] [Plasma Science and Fusion Center, MIT, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139 (United States)

2014-02-15T23:59:59.000Z

65

Major Program Offices  

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

101 101 Major Program Offices Doing Business with... Energy Efficiency and Renewable Energy Office of Environmental Management National Nuclear Security Administration Office of Science Gary G. Lyttek, Business Source Manager FY2010 DOE Procurement Base: $22.9B $1,556 $5,701 $9,523 $3,793 $2,304 $'s - Millions EE EM NNSA SC Other 2 Presentation for the DOE Small Business Conference EERE Funding Opportunity Announcements (FOA) May 2011 3 Office of Energy Efficiency and Renewable Energy 4 * The mission and vision of the Office of Energy Efficiency and Renewable Energy (EERE) is to strengthen America's energy security, environmental quality and economic vitality in public-private partnerships that: * Enhance energy efficiency and productivity

66

Ion Colliders  

E-Print Network [OSTI]

High-energy ion colliders are large research tools in nuclear physics to study the Quark-Gluon-Plasma (QGP). The range of collision energy and high luminosity are important design and operational considerations. The experiments also expect flexibility with frequent changes in the collision energy, detector fields, and ion species. Ion species range from protons, including polarized protons in RHIC, to heavy nuclei like gold, lead and uranium. Asymmetric collision combinations (e.g. protons against heavy ions) are also essential. For the creation, acceleration, and storage of bright intense ion beams, limits are set by space charge, charge change, and intrabeam scattering effects, as well as beam losses due to a variety of other phenomena. Currently, there are two operating ion colliders, the Relativistic Heavy Ion Collider (RHIC) at BNL, and the Large Hadron Collider (LHC) at CERN.

Fischer, W

2015-01-01T23:59:59.000Z

67

Major Energy Producers  

Gasoline and Diesel Fuel Update (EIA)

206(92) 206(92) Performance Profiles of Major Energy Producers 1992 January 1994 Elk. I nergy Information dministration This publication and other Energy Information Administration (EIA) publications may be purchased from the Superintendent of Documents, U.S. Government Printing Office. All telephone orders should be directed to: U.S. Government Printing Office Superintendent of Documents McPherson Square Bookstore U.S. Government Printing Office 1510 H Street, N.W. Washington, DC 20402 Washington, DC 20005 (202)783-3238 (202)653-2050 FAX (202)512-2233 FAX (202)376-5055 8 a.m. to 4 p.m., eastern time, M-F 9 a.m. to 4:30 p.m., eastern time, M-F All mail orders should be directed to: U.S. Government Printing Office P.O. Box 371954 Pittsburgh, PA 15250-7954 Complimentary subscriptions and single issues are available to certain groups of subscribers, such as

68

EFRC CMSNF Major Accomplishments  

SciTech Connect (OSTI)

The mission of the Center for Material Science of Nuclear Fuels (CMSNF) has been to develop a first-principles-based understanding of thermal transport in the most widely used nuclear fuel, UO2, in the presence of defect microstructure associated with radiation environments. The overarching goal within this mission was to develop an experimentally validated multiscale modeling capability directed toward a predictive understanding of the impact of radiation and fission-product induced defects and microstructure on thermal transport in nuclear fuel. Implementation of the mission was accomplished by integrating the physics of thermal transport in crystalline solids with microstructure science under irradiation through multi institutional experimental and computational materials theory teams from Idaho National Laboratory, Oak Ridge National Laboratory, Purdue University, the University of Florida, the University of Wisconsin, and the Colorado School of Mines. The Centers research focused on five major areas: (i) The fundamental aspects of anharmonicity in UO2 crystals and its impact on thermal transport; (ii) The effects of radiation microstructure on thermal transport in UO2; (iii) The mechanisms of defect clustering in UO2 under irradiation; (iv) The effect of temperature and oxygen environment on the stoichiometry of UO2; and (v) The mechanisms of growth of dislocation loops and voids under irradiation. The Center has made important progress in each of these areas, as summarized below.

D. Hurley; Todd R. Allen

2014-09-01T23:59:59.000Z

69

Structure and dynamics of aqueous solution of uranyl ions  

SciTech Connect (OSTI)

The present work describes a molecular dynamics simulation study of structure and dynamics of aqueous solution of uranyl ions in water. Structural properties of the system in terms of radial distribution functions and dynamical characteristics as obtained through velocity autocorrelation function and mean square displacements have been analyzed. The results for radial distribution functions show the oxygen of water to form the first solvation shell at 2.4 around the uranium atom, whereas the hydrogen atoms of water are distributed around the uranium atom with the major peak at around 3.0 . Analyses of transport behaviors of ions and water through MSD indicates that the diffusion of the uranyl ion is much less as compared to that of the water molecules. It is also observed that the dynamical behavior of water molecules gets modified due to the presence of uranyl ion. The effect of increase in concentration of uranyl ions on the structure and dynamics of water molecules is also studied.

Chopra, Manish [Radiation Safety Systems Division, Bhabha Atomic Research Centre, Mumbai-400085 (India); Choudhury, Niharendu, E-mail: nihcho@barc.gov.in [Theoretical Chemistry Section, Bhabha Atomic Research Centre, Mumbai-400085 (India)

2014-04-24T23:59:59.000Z

70

Revised: 9/25/13 COMBINED MAJOR BIOLOGY/PSYCHOLOGY  

E-Print Network [OSTI]

Revised: 9/25/13 COMBINED MAJOR BIOLOGY/PSYCHOLOGY CONCENTRATION FORM (To be submitted ____________________ 5. Biology 75, 110, 115, 116, or 134 ________________________________ II. Five Psychology courses 1. Psychology 31 __________________ 2. Psychology 32 _____________________ (or Bio 132) __________________ 3

Patel, Aniruddh D.

71

Quantitative evaluation of ammonium hydrosulfide reagent for precipitation of group II cations at 1.0 molar hydrogen ion concentration and for separation of group II and group III cations  

E-Print Network [OSTI]

, . 9 melen by~@en ion oenoen4xatien when eeyanaClen ef 1i yLtatmg a Grid XX ea4Xen, ne 4' evlfMe, e4 X. O ? CXt &44k O@KLCGXAX'8. '49. GB 8%6. l)p' pX'4IQigi484~ S 6M'gp XXX - ed%. ee @+~&9. 8e xi@@ ed, MXg ~eniermX ee1u41ea. Ree~qMee ' eX' 8k@ ~i...~es--'ljx'emefex'xe@ Co e $09 @1? Be'DexGGotp f ' -T sekima'&XameChate AzemJo, . (XXX) . Dlengaxwtee (XI) . Gep@rnexomt . , %'ice. exeemlomp yxldte, ewxyle i eea:4keaqgve@ e45h. ; . %+8 . 8@Xggi@@' Wee '48gef Q$Xg 5894?elkee8 bp' @g'gp@@S! ~N$'45' 1 @f"8" eLL~ -?OS...

Ramsey, Jerry Warren

2012-06-07T23:59:59.000Z

72

Concentrating Solar Power Forum Concentrating Photovoltaics (Presentation)  

SciTech Connect (OSTI)

This presentation's summaries: a convenient truth, comparison of three concentrator technologies, value of high efficiency, and status of industry.

Kurtz, S.

2008-05-06T23:59:59.000Z

73

Major Renovations | Department of Energy  

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

Major Renovations Major Renovations Major Renovations October 16, 2013 - 4:50pm Addthis Project Phases for Major Renovations The major renovation process still follows the phases of project design and construction, from planning to operations and maintenance. More information on how to integrate renewable energy into the phases of design is discussed in the main portion of this Guide. Major renovations are more constricted in design choices than new construction, but can still offer a wide range of opportunities for integrating renewable energy technologies into the renovation process. During a major Federal building renovation, more design factors may be pre-determined, such as building site and orientation, but a whole building design approach can still offer the most economic and efficient options.

74

MANAGEMENT INFORMATION SYSTEMS (MIS) CONCENTRATION FOR UNDERGRADUATES  

E-Print Network [OSTI]

MANAGEMENT INFORMATION SYSTEMS (MIS) CONCENTRATION FOR UNDERGRADUATES The management information systems concentration, like a major, focuses on the use of information technology for value creation creation. Link to Rensselaer 2012-2013 Catalog Required Courses MGMT 4240 Systems Analysis & Design MGMT

Salama, Khaled

75

Solar Concentration in Space  

Science Journals Connector (OSTI)

Solar concentrators go space. Lens and mirror-based solar concentrators have recently begun to boost photovoltaic power supplies for satellites in space. In 1998, the first mission carrying solar concentrators...

Dr. Ralf Leutz; Dr. Akio Suzuki

2001-01-01T23:59:59.000Z

76

Postmortem Memantine Concentrations  

Science Journals Connector (OSTI)

......case-report Case Report Postmortem Memantine Concentrations Nichole Bynum * Justin...Postmortem fluid and tissue concentrations of memantine (Namenda), a drug recently approved...in a suspicious death. In addition, memantine concentrations considered to be incidental......

Nichole Bynum; Justin Poklis; Diana Garside; Ruth Winecker

2007-05-01T23:59:59.000Z

77

National Laboratory Concentrating Solar Power Research and Development  

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

and performance improvements across all major concentrating solar power (CSP) subsystems-solar fields, power plants, receivers, and thermal storage-are necessary to achieve the...

78

Majorization-preserving quantum channels  

E-Print Network [OSTI]

In this report, we give a characterization to those quantum channels that preserve majorization relationship between quantum states. Some remarks are presented as well.

Lin Zhang

2012-09-24T23:59:59.000Z

79

Identification and characterization of a bacterial hydrosulphide ion channel  

SciTech Connect (OSTI)

The hydrosulphide ion (HS{sup -}) and its undissociated form, hydrogen sulphide (H{sub 2}S), which are believed to have been critical to the origin of life on Earth, remain important in physiology and cellular signalling. As a major metabolite in anaerobic bacterial growth, hydrogen sulphide is a product of both assimilatory and dissimilatory sulphate reduction. These pathways can reduce various oxidized sulphur compounds including sulphate, sulphite and thiosulphate. The dissimilatory sulphate reduction pathway uses this molecule as the terminal electron acceptor for anaerobic respiration, in which process it produces excess amounts of H{sub 2}S. The reduction of sulphite is a key intermediate step in all sulphate reduction pathways. In Clostridium and Salmonella, an inducible sulphite reductase is directly linked to the regeneration of NAD{sup +}, which has been suggested to have a role in energy production and growth, as well as in the detoxification of sulphite. Above a certain concentration threshold, both H{sub 2}S and HS{sup -} inhibit cell growth by binding the metal centres of enzymes and cytochrome oxidase, necessitating a release mechanism for the export of this toxic metabolite from the cell. Here we report the identification of a hydrosulphide ion channel in the pathogen Clostridium difficile through a combination of genetic, biochemical and functional approaches. The HS{sup -} channel is a member of the formate/nitrite transport family, in which about 50 hydrosulphide ion channels form a third subfamily alongside those for formate (FocA) and for nitrite (NirC). The hydrosulphide ion channel is permeable to formate and nitrite as well as to HS{sup -} ions. Such polyspecificity can be explained by the conserved ion selectivity filter observed in the channel's crystal structure. The channel has a low open probability and is tightly regulated, to avoid decoupling of the membrane proton gradient.

Czyzewski, Bryan K.; Wang, Da-Neng (NYUSM)

2012-10-26T23:59:59.000Z

80

Dept. of Psychology Majors Advising  

E-Print Network [OSTI]

Dept. of Psychology Majors Advising Summer 2011 Whether you are choosing courses or deciding on Psychology as your major, a faculty advisor can help you plan your degree and ensure you meet all.rockman@uwinnipeg.ca E-mail for an appt. Contact the Psychology Department Assistant for info

Martin, Jeff

Note: This page contains sample records for the topic "major ion concentrations" 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

@Why Physics Comprehensive Physics Major.  

E-Print Network [OSTI]

@Why Physics Comprehensive Physics Major. From the basic laws of physics to the resulting emergent behavior, physics studies what the universe is made of and how it works. As a Physics major that surrounds us, to the structure and evolution of the entire universe. We offer three degrees in Physics

Yoo, S. J. Ben

82

Education majors participate in Furman  

E-Print Network [OSTI]

's science education coordinator, was to celebrate scholarship and creative endeavors. After years of smallEducation majors participate in Furman Engaged Day! Five education majors presented their research an impressive list of over 220 poster displays in the Physical Activities Center, 50 oral presentations

83

Reversible photodeposition and dissolution of metal ions  

DOE Patents [OSTI]

A cyclic photocatalytic process for treating waste water containing metal and organic contaminants. In one embodiment of the method, metal ions are photoreduced onto the photocatalyst and the metal concentrated by resolubilization in a smaller volume. In another embodiment of the method, contaminant organics are first oxidized, then metal ions removed by photoreductive deposition. The present invention allows the photocatalyst to be recycled until nearly complete removal of metal ions and organic contaminants is achieved.

Foster, Nancy S. (Boulder, CO); Koval, Carl A. (Golden, CO); Noble, Richard D. (Boulder, CO)

1994-01-01T23:59:59.000Z

84

Ion Channel Engineering: Perspectives and Strategies  

Science Journals Connector (OSTI)

Abstract Ion channels facilitate the passive movement of ions down an electrochemical gradient and across lipid bilayers in cells. This phenomenon is essential for life and underlies many critical homeostatic processes in cells. Ion channels are diverse and differ with respect to how they open and close (gating) and to their ionic conductance/selectivity (permeation). Fundamental understanding of ion channel structurefunction mechanisms, their physiological roles, how their dysfunction leads to disease, their utility as biosensors, and development of novel molecules to modulate their activity are important and active research frontiers. In this review, we focus on ion channel engineering approaches that have been applied to investigate these aspects of ion channel function, with a major emphasis on voltage-gated ion channels.

Prakash Subramanyam; Henry M. Colecraft

2014-01-01T23:59:59.000Z

85

Photovoltaic concentrator module improvements study  

SciTech Connect (OSTI)

This report presents results of a project to design and fabricate an improved photovoltaic concentrator module. Using previous work as a baseline, this study conducted analyses and testing to select major module components and design features. The lens parquet and concentrator solar cell were selected from the highest performing, available components. A single 185X point-focus module was fabricated by the project team and tested at Sandia. Major module characteristics include a 6 by 4 compression-molded acrylic lens parquet (0.737 m{sup 2} area), twenty-four 0.2 ohms-cm, FZ, p-Si solar cells (1.56 cm{sup 2} area) soldered to ceramic substrates and copper heat spreaders, and an aluminized steel housing with corrugated bottom. This project marked the first attempt to use prismatic covers on solar cells in a high-concentration, point-focus application. Cells with 15 percent metallization were obtained, but problems with the fabrication and placement of prismatic covers on these cells lead to the decision not to use covers in the prototype module. Cell assembly fabrication, module fabrication, and module optical design activities are presented here. Test results are also presented for bare cells, cell assemblies, and module. At operating conditions of 981 watts/m{sup 2} DNI and an estimated cell temperature of 65{degrees}C, the module demonstrated an efficiency of 13.9 percent prior to stressed environmental exposure. 12 refs., 56 figs., 7 tabs.

Levy, S.L.; Kerschen, K.A. (Black and Veatch, Kansas City, MO (United States)); Hutchison, G. (Solar Kinetics, Inc., Dallas, TX (United States)); Nowlan, M.J. (Spire Corp., Bedford, MA (United States))

1991-08-01T23:59:59.000Z

86

E-Print Network 3.0 - atmospheric krypton-85 concentrations Sample...  

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

Geosciences Union Atmospheric Chemistry and Physics Characterization of aerosol... -shale-burning industrial areas. Ion chro- matography analysis showed that concentrations of...

87

Major Demonstrations | Department of Energy  

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

Major Demonstrations Major Demonstrations Major Demonstrations A state-of-the-art integrated coal gasification combined-cycle (IGCC) power plant, Tampa Electric's Polk Power Station produces enough electricity to serve 75,000 homes. A state-of-the-art integrated coal gasification combined-cycle (IGCC) power plant, Tampa Electric's Polk Power Station produces enough electricity to serve 75,000 homes. The Office of Fossil Energy is co-funding large-scale demonstrations of clean coal technologies to hasten their adoption into the commercial marketplace. Through the year 2030, electricity consumption in the United States is expected to grow by about 1 percent per year. The ability of coal-fired generation to help meet this demand could be limited by concerns over greenhouse gas emissions. While the Major Demonstrations performed to date

88

FAST ION STUDIES OF ION CYCLOTRON HEATING  

E-Print Network [OSTI]

FAST ION STUDIES OF ION CYCLOTRON HEATING IN THE PLT TOKAMAK Gregory Wayne Hammett;@1986 Gregory Wayne Hammett ALL RIGHTS RESERVED #12;Abstract Fast Ion Studies of Ion Cyclotron Heating about the physics of wave heating. Previous experiments have demonstrated that ion cyclotron heating

Hammett, Greg

89

secondary ion detection | EMSL  

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

ion detection secondary ion detection Leads No leads are available at this time. Magnesium behavior and structural defects in Mg+ ion implanted silicon carbide. Abstract: As a...

90

Photovoltaic concentrator initiative: Concentrator cell development  

SciTech Connect (OSTI)

This project involves the development of a large-area, low-cost, high-efficiency concentrator solar cell for use in the Entech 22-sun linear-focus Fresnel lens concentrator system. The buried contact solar cell developed at the University of New South Wales was selected for this project. Both Entech and the University of New South Wales are subcontractors. This annual report presents the program efforts from November 1990 through December 1991, including the design of the cell, development of a baseline cell process, and presentation of the results of preliminary cell processing. Important results include a cell designed for operation in a real concentrator system and substitution of mechanical grooving for the previously utilized laser scribing.

Wohlgemuth, J.H.; Narayanan, S. [Solarex Corp., Frederick, MD (US)

1993-05-01T23:59:59.000Z

91

EM Major Procurements | Department of Energy  

Office of Environmental Management (EM)

Major Procurements EM Major Procurements Following is a listing of major procurement actions currently being competed by the Office of Environmental Management. Information...

92

Supporting Information for: Salt concentration differences alter membrane  

E-Print Network [OSTI]

). The membrane area available for ion transport was 11.4 cm2 . Platinum mesh electrodes that spanned the crossS1 Supporting Information for: Salt concentration differences alter membrane resistance in reverse-814-867-1847 #12;S2 Membrane resistance measurement Without a concentration difference Membrane resistance

93

Dirichlet polynomials, Majorization, and Trumping  

E-Print Network [OSTI]

Majorization and trumping are two partial orders which have proved useful in quantum information theory. We show some relations between these two partial orders and generalized Dirichlet polynomials, Mellin transforms, and completely monotone functions. These relations are used to prove a succinct generalization of Turgut's characterization of trumping.

Rajesh Pereira; Sarah Plosker

2013-12-11T23:59:59.000Z

94

Summary of Curricula Major Codes  

E-Print Network [OSTI]

curricula provide the following opportunities for study: (1) Liberal arts and sciences: Curricula arts and sciences: Curricula in major fields leading to the Bachelor of Science, Bachelor of Arts, Bachelor of Fine Arts in Dance, or Bachelor of Music degree in applied arts and sciences. (3) Professional

Ponce, V. Miguel

95

Major Communications Reports | Department of Energy  

Office of Environmental Management (EM)

Major Communications Reports Major Communications Reports May 18, 2012 Green Button Data: More Power to You May 28, 2009 Major Communications Report May 28, 2009 May 7, 2009 Major...

96

Analysis of Mitochondrial pH and Ion Concentrations  

Science Journals Connector (OSTI)

Monolayers should be simultaneously loaded with SNARF-1 and the mitochondrial stain MTG. This allows during the processing step to discriminate between cytosolic and mitochondrial...Protocol 1, where mitochondria...

Martin vandeVen; Corina Balut; Szilvia Baron; Ilse Smets; Paul Steels

2010-01-01T23:59:59.000Z

97

The determination of some anions using ion chromatography and ion chromatography-graphite furnace atomic absorption spectrometry  

E-Print Network [OSTI]

THE DETERMINATION OF SOME ANIONS USING ION CHROMATOGRAPHY AND ION CHROMATOGRAPHY-GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY A Thesis by DANIEL C. J. HILLMAN Submitted to the Graduate College of Texas A&M University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE August 1981 Major Subject: Chemistry THE DETERMINATION OF SOME ANIONS USING ION CHROMATOGRAPHY AND ION CHROMATOGRAPHY-GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY A Thesis by DANIEL C. J. HILLMAN...

Hillman, Daniel C

1981-01-01T23:59:59.000Z

98

Material for a luminescent solar concentrator  

DOE Patents [OSTI]

A material for use in a luminescent solar concentrator, formed by ceramitizing the luminescent ion Cr/sup 3 +/ with a transparent ceramic glass containing mullite. The resultant material has tiny Cr/sup 3 +/-bearing crystallites dispersed uniformly through an amorphous glass. The invention combines the high luminescent efficiency of Cr/sup 3 +/ in the crystalline phase with the practical and economical advantages of glass technology.

Andrews, L.J.

1984-01-01T23:59:59.000Z

99

Ion exchange purification of scandium  

DOE Patents [OSTI]

An improvement in purification of scandium through ion exchange chromatography is disclosed in which the oxidation potential of the eluting solution is altered by the addition of potassium chlorate or ammonium chloride so that removal of contaminants is encouraged. The temperature, pH and concentration of the eluent HEDTA are controlled in order to maintain the scandium in the column while minimizing dilution of the scandium band. Recovery of scandium is improved by pumping dilute scandium over the column prior to stripping the scandium and precipitation. This eliminates the HEDTA ion and other monovalent cations contaminating the scandium band. This method maximizes recovery of scandium while maintaining purity. 2 figs.

Herchenroeder, L.A.; Burkholder, H.R.

1990-10-23T23:59:59.000Z

100

Scattering Solar Thermal Concentrators  

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

is a rendering of a scattering solar concentrator. Light collected by a cylindrical Fresnel lens is focused within a curved glass "guide" sheet, where it is redirected into...

Note: This page contains sample records for the topic "major ion concentrations" 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

Crystal structure of a concentrative nucleoside transporter from Vibrio cholerae at 2.4;#8201;  

SciTech Connect (OSTI)

Nucleosides are required for DNA and RNA synthesis, and the nucleoside adenosine has a function in a variety of signalling processes. Transport of nucleosides across cell membranes provides the major source of nucleosides in many cell types and is also responsible for the termination of adenosine signalling. As a result of their hydrophilic nature, nucleosides require a specialized class of integral membrane proteins, known as nucleoside transporters (NTs), for specific transport across cell membranes. In addition to nucleosides, NTs are important determinants for the transport of nucleoside-derived drugs across cell membranes. A wide range of nucleoside-derived drugs, including anticancer drugs (such as Ara-C and gemcitabine) and antiviral drugs (such as zidovudine and ribavirin), have been shown to depend, at least in part, on NTs for transport across cell membranes. Concentrative nucleoside transporters, members of the solute carrier transporter superfamily SLC28, use an ion gradient in the active transport of both nucleosides and nucleoside-derived drugs against their chemical gradients. The structural basis for selective ion-coupled nucleoside transport by concentrative nucleoside transporters is unknown. Here we present the crystal structure of a concentrative nucleoside transporter from Vibrio cholerae in complex with uridine at 2.4 {angstrom}. Our functional data show that, like its human orthologues, the transporter uses a sodium-ion gradient for nucleoside transport. The structure reveals the overall architecture of this class of transporter, unravels the molecular determinants for nucleoside and sodium binding, and provides a framework for understanding the mechanism of nucleoside and nucleoside drug transport across cell membranes.

Johnson, Zachary Lee; Cheong, Cheom-Gil; Lee, Seok-Yong (Duke)

2012-07-11T23:59:59.000Z

102

Concentration in Green Design  

E-Print Network [OSTI]

, energy, infrastructure or transport. Participants in this specialization area work closely with the GreenConcentration in Green Design Research and Education Opportunities Carnegie Mellon University Civil and Environmental Engineering www.ce.cmu.edu M.S. Concentration Green Design - Course Only Track As an extension

Shewchuk, Jonathan

103

Plasma ion sources and ion beam technology inmicrofabrications  

SciTech Connect (OSTI)

For over decades, focused ion beam (FIB) has been playing a very important role in microscale technology and research, among which, semiconductor microfabrication is one of its biggest application area. As the dimensions of IC devices are scaled down, it has shown the need for new ion beam tools and new approaches to the fabrication of small-scale devices. In the meanwhile, nanotechnology has also deeply involved in material science research and bioresearch in recent years. The conventional FIB systems which utilize liquid gallium ion sources to achieve nanometer scale resolution can no longer meet the various requirements raised from such a wide application area such as low contamination, high throughput and so on. The drive towards controlling materials properties at nanometer length scales relies on the availability of efficient tools. In this thesis, three novel ion beam tools have been developed and investigated as the alternatives for the conventional FIB systems in some particular applications. An integrated focused ion beam (FIB) and scanning electron microscope (SEM) system has been developed for direct doping or surface modification. This new instrument employs a mini-RF driven plasma source to generate focused ion beam with various ion species, a FEI two-lens electron (2LE) column for SEM imaging, and a five-axis manipulator system for sample positioning. An all-electrostatic two-lens column has been designed to focus the ion beam extracted from the source. Based on the Munro ion optics simulation, beam spot sizes as small as 100 nm can be achieved at beam energies between 5 to 35 keV if a 5 {micro}m-diameter extraction aperture is used. Smaller beam spot sizes can be obtained with smaller apertures at sacrifice of some beam current. The FEI 2LE column, which utilizes Schottky emission, electrostatic focusing optics, and stacked-disk column construction, can provide high-resolution (as small as 20 nm) imaging capability, with fairly long working distance (25 mm) at 25 keV beam voltage. Such an integrated FIB/SEM dual-beam system will not only improve the accuracy and reproducibility when performing ion beam sculpting and direct implantation processes, but will also enable researchers to perform cross-sectioning, imaging, and analysis with the same tool. A major advantage of this approach is the ability to produce a wide variety of ion species tailored to the application.

Ji, Lili

2007-09-01T23:59:59.000Z

104

Damage profile and ion distribution of slow heavy ions in compounds  

SciTech Connect (OSTI)

Slow heavy ions inevitably produce a significant concentration of defects and lattice disorder in solids during their slowing-down process via ion-solid interactions. For irradiation effects research and many industrial applications, atomic defect production, ion range, and doping concentration are commonly estimated by the stopping and range of ions in matter (SRIM) code. In this study, ion-induced damage and projectile ranges of low energy Au ions in SiC are determined using complementary ion beam and microscopy techniques. Considerable errors in both disorder profile and ion range predicted by the SRIM code indicate an overestimation of the electronic stopping power, by a factor of 2 in most cases, in the energy region up to 25 keV/nucleon. Such large discrepancies are also observed for slow heavy ions, including Pt, Au, and Pb ions, in other compound materials, such as GaN, AlN, and SrTiO{sub 3}. Due to the importance of these materials for advanced device and nuclear applications, better electronic stopping cross section predictions, based on a reciprocity principle developed by Sigmund, is suggested with fitting parameters for possible improvement.

Zhang Yanwen; Wang Chongmin; Zhu Zihua; Jiang Weilin; Weber, William J. [Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352 (United States); Bae, I.-T. [Small Scale Systems Integration and Packaging Center, State University of New York at Binghamton, P.O. Box 6000, Binghamton, New York 13902 (United States); Sun Kai [Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109 (United States); Ishimaru, Manabu [Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047 (Japan)

2009-05-15T23:59:59.000Z

105

C60 Secondary Ion Fourier Transform Ion Cyclotron Resonance Mass...  

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

C60 Secondary Ion Fourier Transform Ion Cyclotron Resonance Mass Spectrometry. C60 Secondary Ion Fourier Transform Ion Cyclotron Resonance Mass Spectrometry. Abstract: Secondary...

106

Effects of magnesium ions on the stabilization of RNA oligomers of defined structures  

E-Print Network [OSTI]

Effects of magnesium ions on the stabilization of RNA oligomers of defined structures MARTIN J as a function of magnesium ion concentration. The oligomers included helices composed of Watson­Crick base pairs could best be interpreted as nonspecific binding of metal ions to the RNAs. The effect of magnesium ions

Westhof, Eric

107

Scattering Solar Thermal Concentrators  

Broader source: Energy.gov [DOE]

"This fact sheet describes a scattering solar thermal concentrators project awarded under the DOE's 2012 SunShot Concentrating Solar Power R&D award program. The team, led by the Pennsylvania State University, is working to demonstrate a new, scattering-based approach to concentrating sunlight that aims to improve the overall performance and reliability of the collector field. The research team aims to show that scattering solar thermal collectors are capable of achieving optical performance equal to state-of-the-art parabolic trough systems, but with the added benefits of immunity to wind-load tracking error, more efficient land use, and utilization of stationary receivers."

108

Concentrating photovoltaic solar panel  

DOE Patents [OSTI]

The present invention relates to photovoltaic power systems, photovoltaic concentrator modules, and related methods. In particular, the present invention features concentrator modules having interior points of attachment for an articulating mechanism and/or an articulating mechanism that has a unique arrangement of chassis members so as to isolate bending, etc. from being transferred among the chassis members. The present invention also features adjustable solar panel mounting features and/or mounting features with two or more degrees of freedom. The present invention also features a mechanical fastener for secondary optics in a concentrator module.

Cashion, Steven A; Bowser, Michael R; Farrelly, Mark B; Hines, Braden E; Holmes, Howard C; Johnson, Jr., Richard L; Russell, Richard J; Turk, Michael F

2014-04-15T23:59:59.000Z

109

Chemistry Major and Minor At A Glance  

E-Print Network [OSTI]

Chemistry Major and Minor At A Glance Major I ­ Pre-professional (Medicine, Dentistry, Business, Law, Engineering) Major II ­ ACS Certified e.g. Graduate Study or Entry Level Chemistry Employment. Major III ­ Forensic Chemistry Major IV** ­ Biochemistry Option Chemistry Minor General Chemistry I & II

Schmitt, William R.

110

Optimization of Stationary Concentrators  

Science Journals Connector (OSTI)

In this chapter, the main characteristics of stationary nonimaging solar concentrators are optimized in respect of the latitude of their installation and the direct fraction of solar radiation incident on the ...

Dr. Ralf Leutz; Dr. Akio Suzuki

2001-01-01T23:59:59.000Z

111

Concentrator silicon cell research  

SciTech Connect (OSTI)

This project continued the developments of high-efficiency silicon concentrator solar cells with the goal of achieving a cell efficiency in the 26 to 27 percent range at a concentration level of 150 suns of greater. The target efficiency was achieved with the new PERL (passivated emitter, rear locally diffused) cell structure, but only at low concentration levels around 20 suns. The PERL structure combines oxide passivation of both top and rear surfaces of the cells with small area contact to heavily doped regions on the top and rear surfaces. Efficiency in the 22 to 23 percent range was also demonstrated for large-area concentrator cells fabricated with the buried contact solar cell processing sequence, either when combined with prismatic covers or with other innovative approaches to reduce top contact shadowing. 19 refs.

Green, M.A.; Wenham, S.R.; Zhang, F.; Zhao, J.; Wang, A. [New South Wales Univ., Kensington (Australia). Solar Photovoltaic Lab.

1992-04-01T23:59:59.000Z

112

Concentrated Thermoelectric Power  

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

and night using no moving parts at both the utility and distributed scale. Concentrating Solar Power MASSACHUSETTS INSTITUTE OF TECHNOLOGY PROGRAM: SunShot CSP R&D 2012 TOPIC:...

113

Ion beam processing of advanced electronic materials  

SciTech Connect (OSTI)

This report contains research programs discussed at the materials research society symposia on ion beam processing of advanced electronic materials. Major topics include: shallow implantation and solid-phase epitaxy; damage effects; focused ion beams; MeV implantation; high-dose implantation; implantation in III-V materials and multilayers; and implantation in electronic materials. Individual projects are processed separately for the data bases. (CBS)

Cheung, N.W.; Marwick, A.D.; Roberto, J.B. (eds.) (California Univ., Berkeley, CA (USA); International Business Machines Corp., Yorktown Heights, NY (USA). Thomas J. Watson Research Center; Oak Ridge National Lab., TN (USA))

1989-01-01T23:59:59.000Z

114

Ion Monitoring  

DOE Patents [OSTI]

The apparatus and method provide a technique for significantly reducing capacitance effects in detector electrodes arising due to movement of the instrument relative to the item/location being monitored in ion detection based techniques. The capacitance variations are rendered less significant by placing an electrically conducting element between the detector electrodes and the monitored location/item. Improved sensitivity and reduced noise signals arise as a result. The technique also provides apparatus and method suitable for monitoring elongate items which are unsuited to complete enclosure in one go within a chamber. The items are monitored part by part as the pass through the instrument, so increasing the range of items or locations which can be successfully monitored.

Orr, Christopher Henry (Calderbridge, GB); Luff, Craig Janson (Calderbridge, GB); Dockray, Thomas (Calderbridge, GB); Macarthur, Duncan Whittemore (Los Alamos, NM)

2003-11-18T23:59:59.000Z

115

Joined concentric tubes  

DOE Patents [OSTI]

Tubular objects having two or more concentric layers that have different properties are joined to one another during their manufacture primarily by compressive and friction forces generated by shrinkage during sintering and possibly mechanical interlocking. It is not necessary for the concentric tubes to display adhesive-, chemical- or sinter-bonding to each other in order to achieve a strong bond. This facilitates joining of dissimilar materials, such as ceramics and metals.

DeJonghe, Lutgard; Jacobson, Craig; Tucker, Michael; Visco, Steven

2013-01-01T23:59:59.000Z

116

Excitation of electrostatic ion-cyclotron waves by an ion beam in a two-ion component plasma  

SciTech Connect (OSTI)

An ion beam propagating through a magnetized plasma cylinder containing electrons, light positive potassium ions (K{sup +}), and heavy positive cesium ions (Cs{sup +}) drives electrostatic ion cyclotron (EIC) waves to instability via Cerenkov interaction. Two EIC wave modes are present, the K{sup +} and Cs{sup +} modes. The unstable wave frequencies and the growth rate of both the light positive ion and heavy positive ion modes increase with an increase in their relative ion concentrations. The growth rate of both the unstable modes (K{sup +} and Cs{sup +}) scales one-third power of the beam density. The real part of the frequency of both the unstable modes (K{sup +} and Cs{sup +}) increases with the beam energy and scales as almost one-half power of the beam energy. Numerical calculations of the growth rate and mode frequencies have been carried out for the parameters of the experiment of Suszcynsky et al. [J. Geophys. Res. 94, 8966 (1989)]. It is found that the unstable wave frequencies of both the light positive ion and heavy positive ion modes increase with the magnetic fields in accordance with the experimental observations.

Sharma, Jyotsna [Department of Physics, KIIT College of Engineering, Bhondsi Gurgaon 122102 (India); Sharma, Suresh C. [Department of Physics, Maharaja Agrasen Institute of Technology, PSP Area Plot No.-1, Sector-22, Rohini, Delhi 110086 (India)

2010-12-15T23:59:59.000Z

117

Perchlorate Degradation Using Partially Oxidized Titanium Ions and Ion Exchange Membrane Hybrid System  

E-Print Network [OSTI]

. To enhance the overall rate of reaction, high concentrations of acid and Ti(III) are needed, but transport of hydrogen ions through the anion permeable membrane was observed and would be greater at higher acid concentrations. The proposed mathematical model...

Park, Sung Hyuk

2011-08-08T23:59:59.000Z

118

An overview of LINAC ion sources  

SciTech Connect (OSTI)

This paper discusses ion sources used in high-duty-factor proton and H{sup -} Linacs as well as in accelerators utilizing multi-charged heavy ions, mostly for nuclear physics applications. The included types are Electron Cyclotron Resonance (ECR) sources as well as filament and rf driven multicusp sources. The paper does not strive to attain encyclopedic character but rather to highlight major lines of development, peak performance parameters and type-specific limitations and problems of these sources. The main technical aspects being discussed are particle feed, plasma generation and ion production by discharges, and plasma confinement.

Keller, Roderich [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

119

ion microprobe | EMSL  

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

microprobe ion microprobe Leads No leads are available at this time. Magnesium behavior and structural defects in Mg+ ion implanted silicon carbide. Abstract: As a candidate...

120

EMSL - secondary ion detection  

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

secondary-ion-detection en Magnesium behavior and structural defects in Mg+ ion implanted silicon carbide. http:www.emsl.pnl.govemslwebpublicationsmagnesium-behavior-and-struc...

Note: This page contains sample records for the topic "major ion concentrations" 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

ECR ion source with electron gun  

DOE Patents [OSTI]

An Advanced Electron Cyclotron Resonance ion source having an electron gun for introducing electrons into the plasma chamber of the ion source is described. The ion source has a injection enclosure and a plasma chamber tank. The plasma chamber is defined by a plurality of longitudinal magnets. The electron gun injects electrons axially into the plasma chamber such that ionization within the plasma chamber occurs in the presence of the additional electrons produced by the electron gun. The electron gun has a cathode for emitting electrons therefrom which is heated by current supplied from an AC power supply while bias potential is provided by a bias power supply. A concentric inner conductor and outer conductor carry heating current to a carbon chuck and carbon pusher which hold the cathode in place and also heat the cathode. In the Advanced Electron Cyclotron Resonance ion source, the electron gun replaces the conventional first stage used in prior electron cyclotron resonance ion generators. 5 figures.

Xie, Z.Q.; Lyneis, C.M.

1993-10-26T23:59:59.000Z

122

Photovoltaic solar concentrator  

DOE Patents [OSTI]

A photovoltaic solar concentrator is disclosed with one or more transverse-junction solar cells (also termed point contact solar cells) and a lens located above each solar cell to concentrate sunlight onto the solar cell to generate electricity. Piezoelectric actuators tilt or translate each lens to track the sun using a feedback-control circuit which senses the electricity generated by one or more of the solar cells. The piezoelectric actuators can be coupled through a displacement-multiplier linkage to provide an increased range of movement of each lens. Each lens in the solar concentrator can be supported on a frame (also termed a tilt plate) having three legs, with the movement of the legs being controlled by the piezoelectric actuators.

Nielson, Gregory N.; Okandan, Murat; Resnick, Paul J.; Cruz-Campa, Jose Luis

2012-12-11T23:59:59.000Z

123

ARM - Measurement - Aerosol concentration  

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

concentration concentration ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Aerosol concentration A measure of the amount of aerosol particles (e.g. number, mass, volume) per unit volume of air. Categories Aerosols Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments AOS : Aerosol Observing System CSPHOT : Cimel Sunphotometer CPC : Condensation Particle Counter IAP : In-situ Aerosol Profiles (Cessna Aerosol Flights) TDMA : Tandem Differential Mobility Analyzer

124

Investigation of Roadside Particulate Matter Concentration Surrounding Major Arterials in Five Southern Californian Cities  

E-Print Network [OSTI]

Figure 1. Mean wind speed and vertical velocity fluctuationsmean wind speed was 1.7 m/sec. However, vertical velocity

Pan, Hansheng; Bartolome, Christian; Princevac, Marko; Edwards, Rufus; Boarnet, Marlon

2010-01-01T23:59:59.000Z

125

Job: ID Job Title Employer End Date Majors/Concentrations Class Level 56903 Engineer/Est  

E-Print Network [OSTI]

), Computer Science (High Performance Computing and Simulations), Computer Science (Human Language Technology Networks), Computer Science (Computer Security), Computer Science (High Performance Computing (High Performance Computing and Simulations), Computer Science (Human Language Technology), Computer

Wang, Hai

126

Undergraduate Majors, Minors, Concentrations and Degrees The University of Tennessee, Knoxville  

E-Print Network [OSTI]

Environmental Sustainability Construction Science Environmental Science Land Surveying Off-Road Vehicle & Management COLLEGE OF ARCHITECTURE AND DESIGN School of Architecture Architecture Bachelor of Architecture

Perfect, Ed

127

Method for ion implantation induced embedded particle formation via reduction  

DOE Patents [OSTI]

A method for ion implantation induced embedded particle formation via reduction with the steps of ion implantation with an ion/element that will chemically reduce the chosen substrate material, implantation of the ion/element to a sufficient concentration and at a sufficient energy for particle formation, and control of the temperature of the substrate during implantation. A preferred embodiment includes the formation of particles which are nano-dimensional (<100 m-n in size). The phase of the particles may be affected by control of the substrate temperature during and/or after the ion implantation process.

Hampikian, Janet M (Decatur, GA); Hunt, Eden M (Atlanta, GA)

2001-01-01T23:59:59.000Z

128

Ion Association in AlCl3 Aqueous Solutions from Constrained First-Principles Molecular Dynamics  

SciTech Connect (OSTI)

Ab initio molecular dynamics was used to investigate the ion pairing behavior between Cl- and the Al3+ ion in an aqueous AlCl3 solution containing 63 water molecules. A series of constrained simulations was carried out at 300 K for up to 16 ps each, by fixing the inter-nuclear separation (rAl-Cl) between the Al3+ ion and one of the Cl- ions. The calculated potential of mean force of the Al3+-Cl- ion pair shows a pronounced minimum at rAl-Cl = 2.3 corresponding to a contact ion pair (CIP). Two local minima assigned to solvent separated ion pairs (SSIP) are identified at rAl-Cl= 4.4 and 6.0 . The positions of the free energy minima coincide with the hydration shell intervals of the Al3+ cation suggesting that the Cl- ion is inclined to reside in regions of low concentration of waters, i.e. between the 1st and 2nd shells of Al3+ and between the 2nd shell and bulk. A detailed analysis of solvent structure around the Al3+ and Cl- ions as a function of rAl-Cl is presented. The results are compared to structure data from X-ray measurements and unconstrained AIMD simulations of single ions Al3+ and Cl- and AlCl3 solutions. The dipole moment of the water molecules inside the 1st and 2nd hydration shells of Al3+ and in the bulk region and those of the Clion were calculated as a function of rAl-Cl. Major changes in the electronic structure of the system result from the removal of Cl- from the 1st hydration shell of the Al3+ cation. Finally, two unconstrained AIMD simulations of aqueous AlCl3 solutions corresponding to CIP and SSIP configurations were performed (17 ps, 300 K). Only minor structural changes are observed in these systems, confirming their stability.

Cauet, Emilie L.; Bogatko, Stuart A.; Bylaska, Eric J.; Weare, John H.

2012-10-15T23:59:59.000Z

129

Concentrations and activity ratios of uranium isotopes in groundwater from Donana National Park, South of Spain  

SciTech Connect (OSTI)

The levels and distribution of natural radionuclides in groundwaters from the unconfined Almonte-Marismas aquifer, upon which Donana National Park is located, have been analysed. Most sampled points were multiple piezometers trying to study the vertical distribution of the hydrogeochemical characteristics in the aquifer. Temperature, pH, electrical conductivity, dissolved oxygen and redox potential were determined in the field. A large number of parameters, physico-chemical properties, major and minor ions, trace elements and natural radionuclides (U-isotopes, Th-isotopes, Ra-isotopes and {sup 210}Po), were also analysed. In the southern zone, where aeolian sands crop out, water composition is of the sodium chloride type, and the lower U-isotopes concentrations have been obtained. As water circulates through the aquifer, bicarbonate and calcium concentrations increase slightly, and higher radionuclides concentrations were measured. Finally, we have demonstrated that {sup 234}U/{sup 238}U activity ratios can be used as markers of the type of groundwater and bedrock, as it has been the case for old waters with marine origin confined by a marsh in the south-east part of aquifer.

Bolivar, J. P.; Olias, M.; Gonzalez-Garcia, F. [Department of Applied Physics, University of Huelva, Campus de El Carmen, 21071-Huelva (Spain); Garcia-Tenorio, R. [Department of Applied Physics II, University of Sevilla, ETSA Arquitectura, 41012-Sevilla (Spain)

2008-08-07T23:59:59.000Z

130

URBAN OZONE CONCENTRATION FORECASTING WITH ARTIFICIAL NEURAL NETWORK IN CORSICA  

E-Print Network [OSTI]

Perceptron; Ozone concentration. 1. Introduction Tropospheric ozone is a major air pollution problem, both, Ajaccio, France, e-mail: balu@univ-corse.fr Abstract: Atmospheric pollutants concentration forecasting is an important issue in air quality monitoring. Qualitair Corse, the organization responsible for monitoring air

Boyer, Edmond

131

Inferring Magnetospheric Heavy Ion Density using EMIC Waves  

SciTech Connect (OSTI)

We present a method to infer heavy ion concentration ratios from EMIC wave observations that result from ionion hybrid (IIH) resonance. A key feature of the ion-ion hybrid resonance is the concentration of wave energy in a field-aligned resonant mode that exhibits linear polarization. This mode converted wave is localized at the location where the frequency of a compressional wave driver matches the IIH resonance condition, which depends sensitively on the heavy ion concentration. This dependence makes it possible to estimate the heavy ion concentration ratio. In this letter, we evaluate the absorption coefficients at the IIH resonance at Earth's geosynchronous orbit for variable concentrations of He+ and field-aligned wave numbers using a dipole magnetic field. Although wave absorption occurs for a wide range of heavy ion concentrations, it only occurs for a limited range of field-aligned wave numbers such that the IIH resonance frequency is close to, but not exactly the same as the crossover frequency. Using the wave absorption and observed EMIC waves from GOES-12 satellite, we demonstrate how this technique can be used to estimate that the He+ concentration is around 4% near L = 6.6.

Kim, Eun-Hwa; Johnson, Jay R.; Kim, Hyomin; Lee, Dong-Hun

2014-05-01T23:59:59.000Z

132

Derived Concentration Technical Standard  

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

196-2011 196-2011 April 2011 DOE STANDARD DERIVED CONCENTRATION TECHNICAL STANDARD U.S. Department of Energy AREA ENVR Washington, D.C. 20585 Not Measurement Sensitive This document is available on the Department of Energy Technical Standards Program Web Site at http://www.hss.doe.gov/nuclearsafety/ns/techstds/standard/standard.html DOE-STD-1196-2011 ACKNOWLEDGEMENTS This Derived Concentration Technical Standard was a collaborative effort sponsored by the DOE Office of Environmental Policy and Assistance, with support from Department subject matter experts (SMEs) in the field of radiation protection. This standard, which complements DOE Order (O) 458.1, Radiation Protection of the Public and the Environment, was developed taking

133

Concentrating Energy by Measurement  

E-Print Network [OSTI]

In a recent article [A. Kurcz et al., Phys. Rev. A 81, 063821 (2010)] we predicted an energy concentrating mechanism in composite quantum systems. Its result is a non-zero stationary state photon emission rate even in the absence of external driving. Here we discuss the possible origin of the predicted effect. We attribute it to the presence of a non-trivial interaction between different system components and to repeated environment-induced photon measurements.

Almut Beige; Antonio Capolupo; Andreas Kurcz; Emilio Del Giudice; Giuseppe Vitiello

2010-12-29T23:59:59.000Z

134

Anisotropy of shock-accelerated ion distributions in interplanetary space  

SciTech Connect (OSTI)

Recent reports of energetic particles upstream of interplanetary shocks have concentrated upon the ability of the shocks to accelerate a small percentage of the solar wind thermal ion population. In keeping with the diffusive shock acceleration model. Lee (1983) derived a theory which predicts the asymptotic steady state approached by the energetic particle distribution and low-frequency wave spectra upstream of interplanetary traveling shocks. More recently, Kennel et al. (1986) have performed a detailed test of the Lee theory by applying it to the observations of the November 12, 1978 shock viewed by the ISEE spacecraft. A major point of departure between the theory and observations rests with the spatial dependence on the particle intensity and anisotropy in the upstream region. The authors argue that this discrepancy is due to the presence of solar flare particles. The resulting anisotropy of the energetic particle distribution several scale lengths upstream of the shock is proportional to the ratio of the streaming of the shock-accelerated population to the density of the solar flare population. Comparison of this theoretical result with the observed upstream anisotropy suggests that the measured upstream anisotropies are due largely to the streaming of the solar flare ion population. They also compare this theory to the measured particle intensities and anisotropies in the April 4-5, 1979 shock event reported by Sanderson et al. (1985b) and conclude that very little of the upstream particle anisotropy measured for this event can be attributed to the shock acceleration process.

Smith, C.W. (Univ. of Delaware, Newark (USA))

1989-05-01T23:59:59.000Z

135

Thermal regeneration of an electrochemical concentration cell  

DOE Patents [OSTI]

A system and method for thermally regenerating an electrochemical concentration cell having first and second aluminum electrodes respectively positioned in contact with first and second electrolytes separated by an ion exchange member, the first and second electrolytes being composed of different concentrations of an ionic solvent and a salt, preferably an aluminum halide. The ionic solvent may be either organic or inorganic with a relatively low melting point, the ionic solvent and the salt form a complex wherein the free energy of formation of said complex is less than about -5 Kcal/mole. A distillation column using solar heat or low grade industrial waste heat receives the first and second electrolytes and thermally decomposes the salt-solvent complex to provide feed material for the two half cells.

Krumpelt, Michael (Naperville, IL); Bates, John K. (Plainfield, IL)

1981-01-01T23:59:59.000Z

136

Thermal regeneration of an electrochemical concentration cell  

DOE Patents [OSTI]

A system and method are described for thermally regenerating an electrochemical concentration cell having first and second aluminum electrodes respectively positioned in contact with first and second electrolytes separated by an ion exchange member, the first and second electrolytes being composed of different concentrations of an ionic solvent and a salt, preferably an aluminum halide. The ionic solvent may be either organic or inorganic with a relatively low melting point, the ionic solvent and the salt form a complex wherein the free energy of formation of said complex is less than about -5 kcal/mole. A distillation column using solar heat or low grade industrial waste heat receives the first and second electrolytes and thermally decomposes the salt-solvent complex to provide feed material for the two half cells.

Krumpelt, M.; Bates, J.K.

1980-05-09T23:59:59.000Z

137

Ion sources for ion implantation technology (invited)  

SciTech Connect (OSTI)

Ion sources for ion implantation are introduced. The technique is applied not only to large scale integration (LSI) devices but also to flat panel display. For LSI fabrication, ion source scheduled maintenance cycle is most important. For CMOS image sensor devices, metal contamination at implanted wafer is most important. On the other hand, to fabricate miniaturized devices, cluster ion implantation has been proposed to make shallow PN junction. While for power devices such as silicon carbide, aluminum ion is required. For doping processes of LCD fabrication, a large ion source is required. The extraction area is about 150 cm 10 cm, and the beam uniformity is important as well as the total target beam current.

Sakai, Shigeki, E-mail: sakai-shigeki@nissin.co.jp; Hamamoto, Nariaki; Inouchi, Yutaka; Umisedo, Sei; Miyamoto, Naoki [Nissin Ion Equipment co., ltd, 575 Kuze-Tonoshiro-cho Minami-ku, Kyoto 601-8205 (Japan)] [Nissin Ion Equipment co., ltd, 575 Kuze-Tonoshiro-cho Minami-ku, Kyoto 601-8205 (Japan)

2014-02-15T23:59:59.000Z

138

The Emissions of Major Aromatic Voc as Landfill Gas from Urban Landfill Sites in Korea  

Science Journals Connector (OSTI)

In this study, concentrations of major aromatic VOCs were determined from landfill gas (LFG) at a total of five...?1 (WJ in wintertime). The LFG flux values of aromatic VOC, when compared to the contribution of n...

Ki-Hyun Kim; Sung Ok Baek; Ye-Jin Choi

2006-07-01T23:59:59.000Z

139

The Rheology of Concentrated Suspensions  

SciTech Connect (OSTI)

Research program on the rheological properties of flowing suspensions. The primary purpose of the research supported by this grant was to study the flow characteristics of concentrated suspensions of non-colloidal solid particles and thereby construct a comprehensive and robust theoretical framework for modeling such systems quantitatively. At first glance, this seemed like a modest goal, not difficult to achieve, given that such suspensions were viewed simply as Newtonian fluids with an effective viscosity equal to the product of the viscosity of the suspending fluid times a function of the particle volume fraction. But thanks to the research findings of the Principal Investigator and of his Associates, made possible by the steady and continuous support which the PI received from the DOE Office of Basic Energy Sciences, the subject is now seen to be more complicated and therefore much more interesting in that concentrated suspensions have been shown to exhibit fascinating and unique rheological properties of their own that have no counterpart in flowing Newtonian or even non-Newtonian (polymeric) fluids. In fact, it is generally acknowledged that, as the result of these investigations for which the PI received the 2001 National Medal of Science, our understanding of how suspensions behave under flow is far more detailed and comprehensive than was the case even as recently as a decade ago. Thus, given that the flow of suspensions plays a crucial role in many diverse physical processes, our work has had a major and lasting impact in a subject having both fundamental as well as practical importance.

Andreas Acrivos

2004-09-07T23:59:59.000Z

140

Transfer Guide: Philosophy: General Philosophy Concentration Revised: 1 December 2009 TRANSFER GUIDE AND PLANNING WORKSHEET  

E-Print Network [OSTI]

Transfer Guide: Philosophy: General Philosophy Concentration Revised: 1 December 2009 TRANSFER Degree ­ Philosophy general philosophy concentration This planning worksheet represents a guide for community college students transferring to Colorado State University and majoring in Philosophy: general

Note: This page contains sample records for the topic "major ion concentrations" 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

Passive cooling of concentrated solar cells using phase change material thermal storage.  

E-Print Network [OSTI]

??High solar cell temperature has always been a major concern when designing a concentrated solar power (CSP) system. Exceeding the operational cell temperature can result (more)

Tan, L

2013-01-01T23:59:59.000Z

142

E-Print Network 3.0 - atmospheric radon-222 concentration Sample...  

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

1. Radon-222... concentrations in air include ... Source: Baskaran, Mark - Department of Geology, Wayne State University Collection: Geosciences ; Chemistry 30 1.0 MAJOR STUDIES...

143

Microfabricated Ion Traps  

E-Print Network [OSTI]

Ion traps offer the opportunity to study fundamental quantum systems with high level of accuracy highly decoupled from the environment. Individual atomic ions can be controlled and manipulated with electric fields, cooled to the ground state of motion with laser cooling and coherently manipulated using optical and microwave radiation. Microfabricated ion traps hold the advantage of allowing for smaller trap dimensions and better scalability towards large ion trap arrays also making them a vital ingredient for next generation quantum technologies. Here we provide an introduction into the principles and operation of microfabricated ion traps. We show an overview of material and electrical considerations which are vital for the design of such trap structures. We provide guidance in how to choose the appropriate fabrication design, consider different methods for the fabrication of microfabricated ion traps and discuss previously realized structures. We also discuss the phenomenon of anomalous heating of ions within ion traps, which becomes an important factor in the miniaturization of ion traps.

Marcus D. Hughes; Bjoern Lekitsch; Jiddu A. Broersma; Winfried K. Hensinger

2011-06-28T23:59:59.000Z

144

Electron Beam Ion Sources  

E-Print Network [OSTI]

Electron beam ion sources (EBISs) are ion sources that work based on the principle of electron impact ionization, allowing the production of very highly charged ions. The ions produced can be extracted as a DC ion beam as well as ion pulses of different time structures. In comparison to most of the other known ion sources, EBISs feature ion beams with very good beam emittances and a low energy spread. Furthermore, EBISs are excellent sources of photons (X-rays, ultraviolet, extreme ultraviolet, visible light) from highly charged ions. This chapter gives an overview of EBIS physics, the principle of operation, and the known technical solutions. Using examples, the performance of EBISs as well as their applications in various fields of basic research, technology and medicine are discussed.

Zschornacka, G; Thorn, A

2013-01-01T23:59:59.000Z

145

Major Communications Report March 24, 2009  

Broader source: Energy.gov [DOE]

This file includes the Department of Energy's major announcements regarding the Recovery Act such as press releases, videos, press events or other major communications for the week of March 24, 2009.

146

STUDY ABROADFOR GOVERNMENT MAJORS DEPARTMENT OF GOVERNMENT  

E-Print Network [OSTI]

many hours of elective (lower vs. upper division) credit do I have remaining in my major building your resume now. CREDIT Obtain core, major, or elective credits that count toward your degree

John, Lizy Kurian

147

Genome Majority Vote (GMV), Version 0.x  

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

Genome Majority Vote (GMV), Version 0.x Genome Majority Vote (GMV), Version 0.x The pipeline runs PRODIGAL gene predictions on all genomes, runs pan-reciprocal BLAST, and...

148

Mozambique becomes a major coking coal exporter?  

SciTech Connect (OSTI)

In addition to its potential role as a major international supplier of coking coal, Mozambique will also become a major source of power generation for southern Africa. 3 figs.

Ruffini, A.

2008-06-15T23:59:59.000Z

149

Major Communications Report May 5, 2009  

Broader source: Energy.gov [DOE]

This file includes the Department of Energy's major announcements regarding the Recovery Act such as press releases, videos, press events or other major communications for the week of May 5, 2009.

150

Major Communications Report February 23, 2009  

Broader source: Energy.gov [DOE]

This file includes the Department of Energy's major announcements regarding the Recovery Act such as press releases, videos, press events or other major communications for the week of February 23,...

151

Major Communications Report April 17, 2009  

Broader source: Energy.gov [DOE]

This file includes the Department of Energy's major announcements regarding the Recovery Act such as press releases, videos, press events or other major communications for the week of April 17, 2009.

152

Major Communications Report May 28, 2009  

Broader source: Energy.gov [DOE]

This file includes the Department of Energy's major announcements regarding the Recovery Act such as press releases, videos, press events or other major communications for the week of May 28, 2009.

153

Major Communications Report May 7, 2009  

Broader source: Energy.gov [DOE]

This file includes the Department of Energy's major announcements regarding the Recovery Act such as press releases, videos, press events or other major communications for the week of May 7, 2009.

154

Major Communications Report April 28, 2009  

Broader source: Energy.gov [DOE]

This file includes the Department of Energy's major announcements regarding the Recovery Act such as press releases, videos, press events or other major communications for the week of April 28, 2009.

155

Major Communications Report April 30, 2009  

Broader source: Energy.gov [DOE]

This file includes the Department of Energy's major announcements regarding the Recovery Act such as press releases, videos, press events or other major communications for the week of April 30, 2009.

156

Ion Distribution And Electronic Stopping Power For Au ions In...  

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

Distribution And Electronic Stopping Power For Au ions In Silicon Carbide. Ion Distribution And Electronic Stopping Power For Au ions In Silicon Carbide. Abstract: Accurate...

157

major-projects | netl.doe.gov  

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

Major Gasification Projects News Gasifipedia Gasifier Optimization Feed Systems Syngas Processing Systems Analyses Gasification Plant Databases International Activity Program Plan...

158

Major/Conce ntration Advisor Grad  

E-Print Network [OSTI]

Name TITLE Major/Conce ntration Advisor Grad Abhishek Sharma Computer Science g Addie Evans. Hamid Shahnasser g #12;Name TITLE Major/Conce ntration Advisor Grad Bita Nosratieh Convexity of Domains Mathematics Dr. Alex Schuster g #12;Name TITLE Major/Conce ntration Advisor Grad David Newstrom The Role

159

Major/Concen tration Advisor Grad  

E-Print Network [OSTI]

Name TITLE Major/Concen tration Advisor Grad Archer, H. M., Sekercioglu, C. H. Mendenhall, C. Carmen R. Domingo g #12;Name TITLE Major/Concen tration Advisor Grad Henry Hunter Confirmation Major/Concen tration Advisor Grad Meghan Bishop DIet and food webs of the California red-legged frog

160

Committee on Educational Policy MAJOR QUALIFICATION POLICY  

E-Print Network [OSTI]

Committee on Educational Policy MAJOR QUALIFICATION POLICY CEP encourages all undergraduate to formalize these guidelines by implementing a policy that restricts qualification to one or more majors. CEP of the major qualifications policy on other undergraduate programs; · discuss the potential effects

California at Santa Cruz, University of

Note: This page contains sample records for the topic "major ion concentrations" 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

MARKETING MAJOR (Integrated Marketing Communications Specialization)  

E-Print Network [OSTI]

MARKETING MAJOR (Integrated Marketing Communications Specialization) UPPER DIVISION REQUIREMENTS & Organizational Behavior MKT 370: Marketing Minimum grade of C required for Marketing, IMC majors MGT 405 for Marketing, IMC majors MKT 371: Consumer & Buyer Behavior MKT 370 with a C MKT 373: Integrated Marketing

Ponce, V. Miguel

162

Optical oxygen concentration monitor  

DOE Patents [OSTI]

A system for measuring and monitoring the concentration of oxygen uses as a light source an argon discharge lamp, which inherently emits light with a spectral line that is close to one of oxygen`s A-band absorption lines. In a preferred embodiment, the argon line is split into sets of components of shorter and longer wavelengths by a magnetic field of approximately 2,000 Gauss that is parallel to the light propagation from the lamp. The longer wavelength components are centered on an absorption line of oxygen and thus readily absorbed, and the shorter wavelength components are moved away from that line and minimally absorbed. A polarization modulator alternately selects the set of the longer wavelength, or upshifted, components or the set of the shorter wavelength, or downshifted, components and passes the selected set to an environment of interest. After transmission over a path through that environment, the transmitted optical flux of the argon line varies as a result of the differential absorption. The system then determines the concentration of oxygen in the environment based on the changes in the transmitted optical flux between the two sets of components. In alternative embodiments modulation is achieved by selectively reversing the polarity of the magnetic field or by selectively supplying the magnetic field to either the emitting plasma of the lamp or the environment of interest. 4 figs.

Kebabian, P.

1997-07-22T23:59:59.000Z

163

Optical oxygen concentration monitor  

DOE Patents [OSTI]

A system for measuring and monitoring the concentration of oxygen uses as a light source an argon discharge lamp, which inherently emits light with a spectral line that is close to one of oxygen's A-band absorption lines. In a preferred embodiment, the argon line is split into sets of components of shorter and longer wavelengths by a magnetic field of approximately 2000 Gauss that is parallel to the light propagation from the lamp. The longer wavelength components are centered on an absorption line of oxygen and thus readily absorbed, and the shorter wavelength components are moved away from that line and minimally absorbed. A polarization modulator alternately selects the set of the longer wavelength, or upshifted, components or the set of the shorter wavelength, or downshifted, components and passes the selected set to an environment of interest. After transmission over a path through that environment, the transmitted optical flux of the argon line varies as a result of the differential absorption. The system then determines the concentration of oxygen in the environment based on the changes in the transmitted optical flux between the two sets of components. In alternative embodiments modulation is achieved by selectively reversing the polarity of the magnetic field or by selectively supplying the magnetic field to either the emitting plasma of the lamp or the environment of interest.

Kebabian, Paul (Acton, MA)

1997-01-01T23:59:59.000Z

164

Major Contract Solicitations | Department of Energy  

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

Major Major Contract Solicitations Major Contract Solicitations Welcome to the DOE Headquarters major solicitation page. The following is a listing of major active solicitations. Contained within each solicitation link can be found draft and final solicitations, questions and answers, attachments and all other associated documentation necessary for potential offerors to participate along with contact information. Issuance of Special Notice - Operations and Maintenance Support Services for the iManage Program Aviation Management Green Leases Executive Secretariat Energy Reduction at HQ Real Estate Approvals Documents and Publications Facilities and Infrastructure Federal Advisory Committee Management Freedom of Information Act Financial Assistance Information Systems

165

Plasma heating and hot ion sustaining in mirror based hybrids  

SciTech Connect (OSTI)

Possibilities of plasma heating and sloshing ion sustaining in mirror based hybrids are briefly reviewed. Sloshing ions, i.e. energetic ions with a velocity distribution concentrated to a certain pitch-angle, play an important role in plasma confinement and generation of fusion neutrons in mirror machines. Neutral beam injection (NBI) is first discussed as a method to generate sloshing ions. Numerical results of NBI modeling for a stellarator-mirror hybrid are analyzed. The sloshing ions could alternatively be sustained by RF heating. Fast wave heating schemes, i.e. magnetic beach, minority and second harmonic heating, are addressed and their similarities and differences are described. Characteristic features of wave propagation in mirror hybrid devices including both fundamental harmonic minority and second harmonic heating are examined. Minority heating is efficient for a wide range of minority concentration and plasma densities; it allows one to place the antenna aside from the hot ion location. A simple-design strap antenna suitable for this has good performance. However, this scenario is appropriate only for light minority ions. The second harmonic heating can be applied for the heavy ion component. Arrangements are similar for minority and second harmonic heating. The efficiency of second harmonic heating is influenced by a weaker wave damping than for minority heating. Numerical calculations show that in a hybrid reactor scaled mirror machine the deuterium sloshing ions could be heated within the minority heating scheme, while the tritium ions could be sustained by second harmonic heating.

Moiseenko, V. E.; Agren, O. [Institute of Plasma Physics, National Science Center 'Kharkiv Institute of Physics and Technology', Akademichna St. 1, 61108 Kharkiv (Ukraine); Uppsala University, Angstroem Laboratory, Division of Electricity, Box 534, SE-75121 Uppsala (Sweden)

2012-06-19T23:59:59.000Z

166

Linear concentrating solar collector  

SciTech Connect (OSTI)

The present invention relates to a segment of a linear concentrating solar collector which includes two plates distanced from each other and extending parallel to each other; a member connects the plates to each other and holes are bored in each of the plates in a parallel manner along a parabolic curve. A member passes through the holes each holding a small strip made of a reflecting material all strips together forming a parabolic surface. The invention relates also to a collector comprising at least two of each segments and an absorber extending along the focus line of the entire collector. The collector is advantageously provided with horizontal and/or vertical members which ascertains that the collector can follow the position of the sun.

Aharon, N. B.

1985-08-06T23:59:59.000Z

167

Concentrating Solar Power  

Science Journals Connector (OSTI)

Concentrating Solar Power (CSP) has the potential to contribute significantly to the generation of electricity by renewable energy resources in the U.S.. Thermal storage can extend the duty cycle of CSP beyond daytime hours to early evening where the value of electricity is often the highest. The potential solar resource for the southwest U.S. is identified along with the need to add power lines to bring the power to consumers. CSP plants in the U.S. and abroad are described. The CSP cost of electricity at the busbar is discussed. With current incentives CSP is approaching competiveness with conventional gas?fired systems during peak?demand hours when the price of electricity is the highest. It is projected that a mature CSP industry of over 4 GWe will be able to reduce the energy cost by about 50% and that U.S. capacity could be 120 GW by 2050.

Mark Mehos

2008-01-01T23:59:59.000Z

168

Single Ion Implantation  

ScienceCinema (OSTI)

On the equipment needed to implant ions in silicon and other materials. More information: http://newscenter.lbl.gov/f...

Thomas Schenkel

2010-01-08T23:59:59.000Z

169

Ion Surface Engineering  

E-Print Network [OSTI]

Ion Surface Engineering Southwest Research Institute® San Antonio, Texas surfaceengineering.swri.com #12;he ion surface engineering program at Southwest Research Institute (SwRI® ) is dedicated, and the Defense Advanced Research Projects Agency. SwRI's ion surface engineering activities include: s Thin

Chapman, Clark R.

170

Magnesium Ion-dependent Activation of the RecA Protein Involves the C Terminus*  

E-Print Network [OSTI]

Magnesium Ion-dependent Activation of the RecA Protein Involves the C Terminus* Received with ATP. We provide evi- dence that the free magnesium ion is required to medi- ate a conformational at low magnesium ion concentrations. The RecA protein of Escherichia coli plays a central role

Cox, Michael M.

171

Ion exchange technology in the remediation of uranium contaminated groundwater at Fernald  

SciTech Connect (OSTI)

Using pump and treat methodology, uranium contaminated groundwater is being removed from the Great Miami Aquifer at the Fernald Environmental Management Project (FEMP) per the FEMP Record of Decision (ROD) that defines groundwater cleanup. Standard extraction wells pump about 3900 gallons-per-minute (gpm) from the aquifer through five ion exchange treatment systems. The largest treatment system k the Advanced Wastewater Treatment (AWWT) Expansion System with a capacity of 1800 gpm, which consists of three trains of two vessels. The trains operate in parallel treating 600 gpm each, The two vessels in each train operate in series, one in lead and one in lag. Treated groundwater is either reinfected back into the aquifer to speed up the aquifer cleanup processor discharged to the Great Miami River. The uranium regulatory ROD limit for discharge to the river is 20 parts per billion (ppb), and the FEMP uranium administrative action level for reinfection is 10 ppb. Spent (i.e., a resin that no longer adsorbs uranium) ion exchange resins must either be replaced or regenerated. The regeneration of spent ion exchange resins is considerably more cost effective than their replacement. Therefore, a project was undertaken to learn how best to regenerate the resins in the groundwater vessels. At the outset of this project, considerable uncertainty existed as to whether a spent resin could be regenerated successfully enough so that it performed as well as new resin relative to achieving very low uranium concentrations in the effluent. A second major uncertain y was whether the operational lifetime of a regenerated resin would be similar to that of a new resin with respect to uranium loading capacity and effluent concentration behavior. The project was successful in that a method for regenerating resins has been developed that is operationally efficient, that results in regenerated resins yielding uranium concentrations much lower than regulatory limits, and that results in regenerated resins with operational lifetimes comparable to new resins.

Chris Sutton; Cathy Glassmeyer; Steve Bozich

2000-09-29T23:59:59.000Z

172

Major Normal Fault | Open Energy Information  

Open Energy Info (EERE)

Major Normal Fault Major Normal Fault Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Major Normal Fault Dictionary.png Major Normal Fault: Normal faults are structures in which the hanging wall is down dropped along the fault plane relative to the foot wall. They are the predominant type of structure in extensional tectonic environments, but are commonly encountered in a number of geologic settings. Other definitions:Wikipedia Reegle Controlling Structures List of controlling structures typically associated with geothermal systems: Major Normal Fault Termination of a Major Normal Fault Stepover or Relay Ramp in Normal Fault Zones Apex or Salient of Normal Fault Fault Intersection Accommodation Zone Displacement Transfer Zone Pull-Apart in Strike-Slip Fault Zone

173

Photovoltaic solar concentrator module  

SciTech Connect (OSTI)

This invention consists of a planar photovoltaic concentrator module for producing an electrical signal from incident solar radiation which includes an electrically insulating housing having a front wall, an opposing back wall and a hollow interior. A solar cell having electrical terminals is positioned within the interior of the housing. A planar conductor is connected with a terminal of the solar cell of the same polarity. A lens forming the front wall of the housing is operable to direct solar radiation incident to the lens into the interior of the housing. A refractive optical element in contact with the solar cell and facing the lens receives the solar radiation directed into the interior of the housing by the lens and directs the solar radiation to the solar cell to cause the solar cell to generate an electrical signal. An electrically conductive planar member is positioned in the housing to rest on the housing back wall in supporting relation with the solar cell terminal of opposite polarity. The planar member is operable to dissipate heat radiated by the solar cell as the solar cell generates an electrical signal and further forms a solar cell conductor connected with the solar cell terminal to permit the electrical signal generated by the solar cell to be measured between the planar member and the conductor.

Chiang, C.J.

1991-05-16T23:59:59.000Z

174

Performance profiles of major energy producers 1989  

SciTech Connect (OSTI)

Performance Profiles of Major Energy Producers 1989 is the thirteenth annual report of the Energy Information Administration's (EIA) Financial Reporting System (FRS). The report examines financial and operating developments, with particular reference to the 23 major energy companies (the FRS companies'') required to report annually on Form EIA-28. Financial information is reported by major lines of business including oil and gas production, petroleum refining and marketing, and other energy operations. Domestic and international operations are examined separately in this report. It also traces key developments affecting the financial performance of major energy companies in 1989, as well as review of important trends.

Not Available

1991-01-23T23:59:59.000Z

175

Major Disruptions in the TOSCA Tokamak  

Science Journals Connector (OSTI)

The major disruption has been studied in detail on the TOSCA tokamak with the use of approximate helical coils. The m=3, n=2 and m=5, n=3 modes have been clearly observed for the first time before a major disruption. The amplitude of the m=2, n=1 mode at the rational surface is about 4% and the m=3, n=2 mode amplitude ? 4.5% before a major disruption. When the m=2, n=1 and m=3, n=2 approximate helical coils are energized with large coil currents, a major disruption occurs.

K. M. McGuire and D. C. Robinson

1980-06-23T23:59:59.000Z

176

Major Risk Factors Integrated Facility Disposition Project -...  

Office of Environmental Management (EM)

Integrated Facility Disposition Project - Oak Ridge Major Risk Factors Integrated Facility Disposition Project - Oak Ridge Full Document and Summary Versions are available for...

177

Major Demonstrations | netl.doe.gov  

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

Major Demonstrations Industrial Carbon Capture and Storage Clean Coal Power Initiative Power Plant Improvement Initiative Clean Coal Technology Demonstration Program FutureGen For...

178

Ion Sources - Cyclotron  

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

Sources Sources The 88-Inch Cyclotron is fed by three Electron Cyclotron Resonance (ECR) high-charge-state ion sources, the ECR, the AECR, and VENUS, currently the most powerful ECR ion source in the world. Built to answer the demand for intense heavy ion beams, these high performance ion sources enable the 88-Inch Cyclotron to accelerate beams of ions from hydrogen to uranium. The ECR ion sources allow the efficient use of rare isotopes of stable elements, either from natural or enriched sources. A variety of metallic ion beams are routinely produced in our low temperature oven (up to 600°C) and our high temperature oven (up to 2100°C). Furthermore, the ability to produce "cocktails" (mixtures of beams) for the Berkeley Accelerator Space Effects (BASE) Facility adds tremendously to the flexibility of the 88-Inch Cyclotron.

179

Major DOE Biofuels Project Locations | Department of Energy  

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

Major DOE Biofuels Project Locations Major DOE Biofuels Project Locations Major DOE Biofuels Project Locations More Documents & Publications Major DOE Biofuels Project Locations...

180

PIA - WEB Physical Security Major Application | Department of...  

Energy Savers [EERE]

Physical Security Major Application PIA - WEB Physical Security Major Application PIA - WEB Physical Security Major Application PIA - WEB Physical Security Major Application More...

Note: This page contains sample records for the topic "major ion concentrations" 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

Crater formation by single ions, cluster ions and ion "showers"  

E-Print Network [OSTI]

The various craters formed by giant objects, macroscopic collisions and nanoscale impacts exhibit an intriguing resemblance in shapes. At the same time, the arc plasma built up in the presence of sufficiently high electric fields at close look causes very similar damage on the surfaces. Although the plasmawall interaction is far from a single heavy ion impact over dense metal surfaces or the one of a cluster ion, the craters seen on metal surfaces after a plasma discharge make it possible to link this event to the known mechanisms of the crater formations. During the plasma discharge in a high electric field the surface is subject to high fluxes (~1025 cm-2s-1) of ions with roughly equal energies typically of the order of a few keV. To simulate such a process it is possible to use a cloud of ions of the same energy. In the present work we follow the effect of such a flux of ions impinging the surface in the shower manner, to find the transition between the different mechanisms of crater formati...

Djurabekova, Flyura; Timko, Helga; Nordlund, Kai; Calatroni, Sergio; Taborelli, Mauro; Wuensch, Walter

2011-01-01T23:59:59.000Z

182

Final purification of synthetic olive oil mill wastewater treated by chemical oxidation using ion exchange: Study of operating parameters  

Science Journals Connector (OSTI)

Abstract In this research work, ion exchange (IE) is presented as a suitable option for purification of olive oil mill wastewater (OMW) previously treated by means of a secondary treatment (OMWST). This pretreatment consisted in Fenton-like oxidation process, followed by coagulationflocculation and filtration through olive stones. The parametric requirements for drinking water production or at least for public waterways discharge were achieved using a combination of two IE columns working in series at bench scale. The IE resins used in this study were Dowex Marathon C and Amberlite IRA-67. The effect of contact time, operating temperature and flow rate on simultaneous removal of sodium, total iron, chloride and phenols (the major pollutant species in OMWST) were investigated. Removal percentages of sodium, chloride and total iron increased with incrementing the contact time. Equilibrium was obtained in about 30min for all ions and ion concentrations values determined were lower than the maximum levels for drinking water standards. On the other hand, adsorption efficiencies of sodium, total iron and chloride ions were found to be not considerably affected by the operating temperature. The highest phenols removal percentage (around 100%) was obtained in the first minutes for 298K and 10L/h.

M.D. Vctor-Ortega; J.M. Ochando-Pulido; G. Hodaifa; A. Martinez-Ferez

2014-01-01T23:59:59.000Z

183

ENGINEERING DEPARTMENTS, DEGREES AND CONCENTRATIONS  

E-Print Network [OSTI]

ENGINEERING, CHEMISTRY AND SCIENCE (TECS) Biological Engineering (BE) Biomedical Engineering (BME) ChemicalENGINEERING DEPARTMENTS, DEGREES AND CONCENTRATIONS DEPARTMENT DEGREE CONCENTRATION (optional) BIOLOGICAL AND AGRICULTURAL ENGINEERING (BAE) BIOMEDICAL ENGINEERING (BME) CHEMICAL AND BIOMOLECULAR

184

NREL: Concentrating Solar Power Research - Southwest Concentrating Solar  

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

Southwest Concentrating Solar Power 1000-MW Initiative Southwest Concentrating Solar Power 1000-MW Initiative Photos of various concentrating solar power systems. NREL, working through SunLab, supports the U.S. Department of Energy's goal to install 1,000 megawatts (MW) of new concentrating solar power systems in the southwestern United States by 2010. This level of deployment, combined with research and development to reduce technology component costs, could help reduce concentrating solar power electricity costs to $0.07/kilowatt-hour. At this cost, concentrating solar power can compete effectively in the Southwest's energy markets. To achieve the Initiative's goal, the U.S. Department of Energy is partnering with the Western Governors' Association to encourage concentrating solar power installations in Arizona, California, Colorado,

185

Linear Concentrator System Basics for Concentrating Solar Power |  

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

Linear Concentrator System Basics for Concentrating Solar Power Linear Concentrator System Basics for Concentrating Solar Power Linear Concentrator System Basics for Concentrating Solar Power August 20, 2013 - 4:45pm Addthis Photo of numerous parallel rows of parabolic trough collectors tracking the sun. Cooling towers and other generator equipment are in the midst of the troughs, and two water tanks are in the background. The Solar Electric Generating Station IV power plant in California consists of many parallel rows of parabolic trough collectors that track the sun. The cooling towers can be seen with the water plume rising into the air, and white water tanks are in the background. Credit: Sandia National Laboratory / PIX 14955 Linear concentrating solar power (CSP) collectors capture the sun's energy with large mirrors that reflect and focus the sunlight onto a linear

186

EXPLORATION ACTIVITY WORKSHEET MAJOR & CAREER EXPLORATION  

E-Print Network [OSTI]

of activity or process you should explore to bring you closer to your academic goals. NameEXPLORATION ACTIVITY WORKSHEET MAJOR & CAREER EXPLORATION Purpose: The exploration activity is designed for students to "explore" opportunities at UM as they relate to student success, majors, careers

Milchberg, Howard

187

Astronomy Major www.physicsandastronomy.pitt.edu  

E-Print Network [OSTI]

Astronomy Major www.physicsandastronomy.pitt.edu Revised: 03/2013 The University of Pittsburgh's internationally recognized Department of Physics and Astronomy has been an important leader at the frontier, chemistry, engineering, and computer science. Required courses for the Astronomy major The BA in astronomy

Jiang, Huiqiang

188

What is required for a Philosophy Major?  

E-Print Network [OSTI]

PHILOSOPHY What is required for a Philosophy Major? at Northern Kentucky University For students who entered the University in 2011. The major in philosophy requires a total of at least thirty (30/PHI 280 Classical and Medieval Philosophy (fall) · PHI 355 Socrates and Plato (spring 2014) History II

Acosta, Charles A.

189

What is required for a Philosophy Major?  

E-Print Network [OSTI]

PHILOSOPHY What is required for a Philosophy Major? at Northern Kentucky University For students who entered the University before 2011. The major in philosophy requires a total of at least thirty or PHI 265 Logic (every semester) · PHI 180 or PHI 280 Classical and Medieval Philosophy (fall) · PHI 185

Acosta, Charles A.

190

What is required for a Philosophy Major?  

E-Print Network [OSTI]

PHILOSOPHY What is required for a Philosophy Major? at Northern Kentucky University For students who entered the University in 2012. The major in philosophy requires a total of at least thirty (30) · PHI 280 Classical and Medieval Philosophy (offered fall) · PHI 285 Modern and Contemporary Philosophy

Acosta, Charles A.

191

What is required for a Philosophy Major?  

E-Print Network [OSTI]

PHILOSOPHY What is required for a Philosophy Major? at Northern Kentucky University For students who entered the University in (or after) 2013. The major in philosophy requires a total of at least (every semester) · PHI 280 Classical and Medieval Philosophy (offered fall) · PHI 285 Modern

Acosta, Charles A.

192

Economics Major? Need Money for School?  

E-Print Network [OSTI]

Economics Major? Need Money for School? Then Apply for a: The Economics Department will award two scholarships, each in the amount of $750 this Spring 2014 to students majoring in Economics at San Francisco. First - a retired member of the Economics faculty. Both graduate and undergraduate students

193

High-efficiency silicon concentrator cell commercialization  

SciTech Connect (OSTI)

This report summarizes the first phase of a forty-one month program to develop a commercial, high-efficiency concentrator solar cell and facility for manufacturing it. The period covered is November 1, 1990 to December 31, 1991. This is a joint program between the Electric Power Research Institute (EPRI) and Sandia National Laboratories. (This report is also published by EPRI as EPRI report number TR-102035.) During the first year of the program, SunPower accomplished the following major objectives: (1) a new solar cell fabrication facility, which is called the Cell Pilot Line (CPL), (2) a baseline concentrator cell process has been developed, and (3) a cell testing facility has been completed. Initial cell efficiencies are about 23% for the baseline process. The long-range goal is to improve this efficiency to 27%.

Sinton, R.A.; Swanson, R.M. [SunPower Corp., Sunnyvale, CA (US)

1993-05-01T23:59:59.000Z

194

Optical measurement of drug concentrations in tissue  

SciTech Connect (OSTI)

This is the final report of a one-year, Laboratory Directed Research and Development (LDRD) project at Los Alamos National Laboratory (LANL). The aim of this project was to develop noninvasive fiber-optic methods for measuring drug concentrations in tissue. Such a system would make possible the study of chemotherapy drug kinetics at specific, targeted locations in the body after the drug is administered. The major result of this project is the development of techniques for measuring changes in absorption of a medium with unknown scattering properties. The developed method was verified by testing on several media with scattering properties in the range typically found for tissue.

Mourant, J.R.; Bigio, I.J.; Jack, D.A.; Johnson, T.M.; Miller, H.D. [Los Alamos National Lab., NM (United States). Chemical Sciences and Technology Div.

1997-10-01T23:59:59.000Z

195

SEDIMENT CONCENTRATION BELOW FREE OVERFALL  

E-Print Network [OSTI]

SEDIMENT CONCENTRATION BELOW FREE OVERFALL By O. R. Stein,~Associate Member, ASCE, and P. Y. Julien and sediment concentration, which may affect downstream morphology and water quality as well as the structure is to determine relationships between time, scour depth, scour-hole volume, and sediment concentration generated

Julien, Pierre Y.

196

Ion exchange phase transitions in "doped" water--filled channels  

E-Print Network [OSTI]

Ion transport through narrow water--filled channels is impeded by a high electrostatic barrier. The latter originates from the large ratio of the dielectric constants of the water and a surrounding media. We show that ``doping'', i.e. immobile charges attached to the walls of the channel, substantially reduces the barrier. This explains why most of the biological ion channels are ``doped''. We show that at rather generic conditions the channels may undergo ion exchange phase transitions (typically of the first order). Upon such a transition a finite latent concentration of ions may either enter or leave the channel, or be exchanged between the ions of different valences. We discuss possible implications of these transitions for the Ca-vs.-Na selectivity of biological Ca channels. We also show that transport of divalent Ca ions is assisted by their fractionalization into two separate excitations.

J. Zhang; A. Kamenev; B. I. Shklovskii

2005-10-12T23:59:59.000Z

197

Differential capacitance of the electric double layer: The interplay between ion finite size and dielectric decrement  

E-Print Network [OSTI]

We study the electric double layer by combining the effects of ion finite size and dielectric decrement. At high surface potential, both mechanisms can cause saturation of the counter-ion concentration near a charged surface. The modified Grahame equation and differential capacitance are derived analytically for a general expression of a permittivity epsilon(n) that depends on the local ion concentration, n, and under the assumption that the co-ions are fully depleted from the surface. The concentration at counter-ion saturation is found for any epsilon(n), and a criterion predicting which of the two mechanisms (steric vs. dielectric decrement) is the dominant one is obtained. At low salinity, the differential capacitance as function of surface potential has two peaks (so-called camel-shape). Each of these two peaks is connected to a saturation of counter-ion concentration caused either by dielectric decrement or by their finite size. Because these effects depend mainly on the counter-ion concentration at the surface proximity, for opposite surface-potential polarity either the cations or anions play the role of counter-ions, resulting in an asymmetric camel-shape. At high salinity, we obtain and analyze the crossover in the differential capacitance from a double-peak shape to a uni-modal one. Finally, several nonlinear models of the permittivity decrement are considered, and we predict that the concentration at dielectrophoretic saturation shifts to higher concentration than those obtained by the linear decrement model.

Yasuya Nakayama; David Andelman

2015-01-11T23:59:59.000Z

198

Ion photon emission microscope  

DOE Patents [OSTI]

An ion beam analysis system that creates microscopic multidimensional image maps of the effects of high energy ions from an unfocussed source upon a sample by correlating the exact entry point of an ion into a sample by projection imaging of the ion-induced photons emitted at that point with a signal from a detector that measures the interaction of that ion within the sample. The emitted photons are collected in the lens system of a conventional optical microscope, and projected on the image plane of a high resolution single photon position sensitive detector. Position signals from this photon detector are then correlated in time with electrical effects, including the malfunction of digital circuits, detected within the sample that were caused by the individual ion that created these photons initially.

Doyle, Barney L. (Albuquerque, NM)

2003-04-22T23:59:59.000Z

199

Ion Beam Materials Lab  

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

Facilities » Facilities » Ion Beam Materials Lab Ion Beam Materials Lab A new research frontier awaits! Our door is open and we thrive on mutually beneficial partnerships, collaborations that drive innovations and new technologies. April 12, 2012 Ion Beam Danfysik Implanter High Voltage Terminal. Contact Yongqiang Wang (505) 665-1596 Email Devoted to the characterization and modification of surfaces through the use of ion beams The Ion Beam Materials Laboratory (IBML) is a Los Alamos National Laboratory resource devoted to the characterization and modification of surfaces through the use of ion beams. The IBML provides and operates the core facilities, while supporting the design and implementation of specific apparati needed for experiments requested by users of the facility. The result is a facility with

200

Analysis of salt concentrations in the Brazos River Basin, Texas  

E-Print Network [OSTI]

ANALYSIS OF SALT CONCENTRATIONS IN THE BRAZOS RIVER BASIN, TEXAS A Thesis by CHARLES KEITH GANZE Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE August 1990 Major Subject: Civil Engineering Analysis of Salt Concentrations in the Brazos River Basin, Texas A Thesis by CHARLES KEITH GANZE Approved as to style and content by: Ralph A. Wurbs (Chair of Committee) James S. Bonner...

Ganze, Charles Keith

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "major ion concentrations" 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

Major Contract Solicitation | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Solicitation | National Nuclear Security Administration Solicitation | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Major Contract Solicitation Home > About Us > Our Operations > Acquisition and Project Management > Major Contract Solicitation Major Contract Solicitation Pantex Plant Wind Farm Acquisition Y-12 National Security Complex, Pantex Plant, with Option for

202

Performance Profiles of Major Energy Producers 1993  

Gasoline and Diesel Fuel Update (EIA)

3) 3) Distribution Category UC-950 Performance Profiles of Major Energy Producers 1993 Energy Information Administration Office of Energy Markets and End Use U.S. Department of Energy Washington, DC 20585 Energy Information Administration/ Performance Profiles of Major Energy Producers 1993 ii This report was prepared by the Energy Information Administration, the independent statistical and analytical agency within the Department of Energy. The information contained herein should not be construed as advocating or reflecting any policy position of the Department of Energy or any other organization. Energy Information Administration/ Performance Profiles of Major Energy Producers 1993 iii The Financial Reporting System, 1977-1993 diskette is available from the Energy Information Administration.

203

Collection of ions  

DOE Patents [OSTI]

The apparatus and method provide an improved technique for detecting ions as the area from which ions are attracted to a detector is increased, consequently increasing the number of ions detected. This is achieved by providing the outer electrodes of the detector connected to the electrical potential, together with alternate intermediate electrodes. The other intermediate electrodes and preferably the housing are grounded. The technique renders such detection techniques more sensitive and gives them a lower threshold at which they can function.

Orr, Christopher Henry (Calderbridge, GB); Luff, Craig Janson (Calderbridge, GB); Dockray, Thomas (Calderbridge, GB); Macarthur, Duncan Whittemore (Los Alamos, NM); Bounds, John Alan (Los Alamos, NM); Koster, James E. (Los Alamos, NM)

2001-01-01T23:59:59.000Z

204

Helium Ion Microscope | EMSL  

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

other characterization capabilities. User Portal Name: Helium Ion Microscope Instrument ID: 34104 Availability: 10 hours a day, 5 days a week Facility: Quiet Wing Quick Specs...

205

EMSL - ion microprobe  

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

microprobe en Magnesium behavior and structural defects in Mg+ ion implanted silicon carbide. http:www.emsl.pnl.govemslwebpublicationsmagnesium-behavior-and-structural-defects...

206

Ion current interface.  

E-Print Network [OSTI]

?? Abstract Abstract The reason to measure the ion current in a combustion engine is to extract combustion parameters in order to achieve closed loop (more)

Johansson, Morgan

2005-01-01T23:59:59.000Z

207

Heavy Ion Event Displays  

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

The following images below depict real and simulated collisions of lead ions in the LHC experiments. Additional photos, video and information are available at these links:...

208

A Path to High-Concentration Luminescent Solar Concentrators  

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

and Impact LSCs enable non-tracking concentration of both direct sunlight and diffuse light onto high- efficiency solar cells, and our work predicts unprecendented levels of...

209

Definition: Reduced Major Outages | Open Energy Information  

Open Energy Info (EERE)

Outages Outages Jump to: navigation, search Dictionary.png Reduced Major Outages A major outage is defined using the beta method, per IEEE Std 1366-2003 (IEEE Power Engineering Society 2004). The monetary benefit of reducing major outages is based on the VOS of each customer class. The VOS parameter represents the total cost of a power outage per MWh. This cost includes the value of unserved energy, lost productivity, collateral damage, the value of penalties and performance-based rates. Functions that lead to this benefit can mitigate major outages by allowing the system to be reconfigured on the fly to help restore service to as many customers as possible, enable a quicker response in the restoration effort, or mitigate the impact of an outage through islanding or alternative power supply.[1]

210

Performance profiles of major energy producers 1993  

SciTech Connect (OSTI)

Performance Profiles of Major Energy Producers 1993 is the seventeenth annual report of the Energy Information Administration`s (EIA) Financial Reporting System (FRS). The report examines financial and operating developments in energy markets, with particular reference to the 25 major US energy companies required to report annually on Form EIA-28. Financial information is reported by major liens of business, including oil and gas production, petroleum refining and marketing, other energy operations, and nonenergy businesses. Financial and operating results are presented in the context of energy market developments with a view toward identifying changing corporate strategies and measuring the performance of ongoing operations both in the US and abroad. This year`s report analyzes financial and operating developments for 1993 (Part 1: Developments in 1993) and also reviews key developments during the 20 years following the Arab Oil Embargo of 1973--1974 (Part 2: Major Energy Company Strategies Since the Arab Oil Embargo). 49 figs., 104 tabs.

NONE

1995-01-01T23:59:59.000Z

211

Operating a Major Electric Utility Today  

Science Journals Connector (OSTI)

...times of major load outages, and pro-vide support in times of transmission outages. In economic terms...ex-tra-high-voltage transmission (Fig. 3), was...of vital utility data both within and...transmission lines, circuit interrupters...

Theodore J. Nagel

1978-09-15T23:59:59.000Z

212

Vermont Air Pollution Control Regulations, Major Stationary Sources and Major Modifications (Vermont)  

Broader source: Energy.gov [DOE]

This section of the air quality standards applies to all major sources and major modifications and outlines the required control technology to achieve the most stringent emission rate. Emission...

213

Deionization and desalination using electrostatic ion pumping  

DOE Patents [OSTI]

The present invention provides a new method and apparatus/system for purifying ionic solutions, such as, for example, desalinating water, using engineered charged surfaces to sorb ions from such solutions. Surface charge is applied externally, and is synchronized with oscillatory fluid movements between substantially parallel charged plates. Ions are held in place during fluid movement in one direction (because they are held in the electrical double layer), and released for transport during fluid movement in the opposite direction by removing the applied electric field. In this way the ions, such as salt, are "ratcheted" across the charged surface from the feed side to the concentrate side. The process itself is very simple and involves only pumps, charged surfaces, and manifolds for fluid collection.

Bourcier, William L. (Livermore, CA); Aines, Roger D. (Livermore, CA); Haslam, Jeffery J. (Livermore, CA); Schaldach, Charlene M. (Pleasanton, CA); O'Brien, Kevin C. (San Ramon, CA); Cussler, Edward (Edina, MN)

2011-07-19T23:59:59.000Z

214

Cylindrical Acoustic Levitator/Concentrator  

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

Cylindrical Acoustic Levitator/Concentrator Cylindrical Acoustic Levitator/Concentrator Cylindrical Acoustic Levitator/Concentrator A low-power, inexpensive acoustic apparatus for levitation and/or concentration of aerosols and small liquid/solid samples having particulates up to several millimeters in diameter in air or other fluids is described. Available for thumbnail of Feynman Center (505) 665-9090 Email Cylindrical Acoustic Levitator/Concentrator A low-power, inexpensive acoustic apparatus for levitation and/or concentration of aerosols and small liquid/solid samples having particulates up to several millimeters in diameter in air or other fluids is described. It is constructed from a commercially available, hollow cylindrical piezoelectric crystal which has been modified to tune the resonance frequency of the breathing mode resonance of the crystal to that

215

In-situ Investigation of Vanadium Ion Transport in Redox Flow Battery  

SciTech Connect (OSTI)

We will show a new method to differentiate the vanadium transport from concentration gradient and that from electric field. Flow batteries with vanadium and iron redox couples as the electro-active species were employed to investigate the transport behavior of vanadium ions in the presence of electric field. It was shown that electric field accelerated the positive-to-negative and reduced the negative-to-positive vanadium ions transport in charge process and affected the vanadium ions transport in an opposite way in discharge process. In addition, a method was designed to differentiate the concentration gradient-driven vanadium ions diffusion and electric field-driven vanadium ions migration. Simplified mathematical model was established to simulate the vanadium ions transport in real charge-discharge operation of flow battery. The concentration gradient diffusion coefficients and electric-migration coefficients of V2+, V3+, VO2+, and VO2+ across Nafion membrane were obtained by fitting the experimental data.

Luo, Qingtao; Li, Liyu; Nie, Zimin; Wang, Wei; Wei, Xiaoliang; Li, Bin; Chen, Baowei; Yang, Zhenguo

2012-06-27T23:59:59.000Z

216

High Current Ion Sources and Injectors for Heavy Ion Fusion  

E-Print Network [OSTI]

on Heavy Ion Inertial Fusion; Fusion Engineering and Design,Ion Inertial Fusion, Princeton, New Jersey, Sept. 6-9, 1995; in Fusion EngineeringIon Inertial Fusion, Princeton, New Jersey, Sept. 6-9, 1995; in Fusion Engineering

Kwan, Joe W.

2005-01-01T23:59:59.000Z

217

PARKS, RECREATION & TOURISM Concentration in  

E-Print Network [OSTI]

PARKS, RECREATION & TOURISM Concentration in Conservation Law Enforcement School Experience in Parks, Recreation, and Tourism 1 Semester 5 Semester 6 SFR 434/534 - Recreation Site Planning

Thomas, Andrew

218

Sandia National Laboratories: concentrating photovoltaic  

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

Energy Efficiency On March 29, 2013, in Concentrating Solar Power, Energy, Partnership, Photovoltaic, Renewable Energy, Research & Capabilities, Solar, Systems Engineering MODE...

219

Concentrated solar power on demand .  

E-Print Network [OSTI]

??This thesis describes a new concentrating solar power central receiver system with integral thermal storage. Hillside mounted heliostats direct sunlight into a volumetric absorption molten (more)

Codd, Daniel Shawn

2011-01-01T23:59:59.000Z

220

Thermal Structure and Major Ion Composition of the Venus Ionosphere: First RPA Results from Venus Orbiter  

Science Journals Connector (OSTI)

...balance, which implies that particles with shocked solar wind energy do not contribute signifi-cantly to the balance...consistent with a mnodel in which less than 5 percent ofthe solar wind energy is deposited at the ionopautse and is conduiicted...

W. C. KNUDSEN; K. SPENNER; R. C. WHITTEN; J. R. SPREITER; K. L. MILLER; V. NOVAK

1979-02-23T23:59:59.000Z

Note: This page contains sample records for the topic "major ion concentrations" 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

Negative ion detachment processes  

SciTech Connect (OSTI)

This paper discusses the following topics: H{sup {minus}} and D{sup {minus}} collisions with atomic hydrogen; collisional decomposition of SF{sub 6}{sup {minus}}; two-electron loss processes in negative ion collisions; associative electron detachment; and negative ion desorption from surfaces.

Champion, R.L.; Doverspike, L.D.

1990-10-01T23:59:59.000Z

222

Selective ion source  

DOE Patents [OSTI]

A ion source is described wherein selected ions maybe extracted to the exclusion of unwanted ion species of higher ionization potential. Also described is a method of producing selected ions from a compound, such as P{sup +} from PH{sub 3}. The invention comprises a plasma chamber, an electron source, a means for introducing a gas to be ionized by electrons from the electron source, means for limiting electron energy from the electron source to a value between the ionization energy of the selected ion species and the greater ionization energy of an unwanted ion specie, and means for extracting the target ion specie from the plasma chamber. In one embodiment, the electrons are generated in a plasma cathode chamber immediately adjacent to the plasma chamber. A small extractor draws the electrons from the plasma cathode chamber into the relatively positive plasma chamber. The energy of the electrons extracted in this manner is easily controlled. The invention is particularly useful for doping silicon with P{sup +}, As{sup +}, and B{sup +} without the problematic presence of hydrogen, helium, water, or carbon oxide ions. Doped silicon is important for manufacture of semiconductors and semiconductor devices. 6 figs.

Leung, K.N.

1996-05-14T23:59:59.000Z

223

Selective ion source  

DOE Patents [OSTI]

A ion source is described wherein selected ions maybe extracted to the exclusion of unwanted ion species of higher ionization potential. Also described is a method of producing selected ions from a compound, such as P.sup.+ from PH.sub.3. The invention comprises a plasma chamber, an electron source, a means for introducing a gas to be ionized by electrons from the electron source, means for limiting electron energy from the electron source to a value between the ionization energy of the selected ion species and the greater ionization energy of an unwanted ion specie, and means for extracting the target ion specie from the plasma chamber. In one embodiment, the electrons are generated in a plasma cathode chamber immediately adjacent to the plasma chamber. A small extractor draws the electrons from the plasma cathode chamber into the relatively positive plasma chamber. The energy of the electrons extracted in this manner is easily controlled. The invention is particularly useful for doping silicon with P.sup.+, AS.sup.+, and B.sup.+ without the problematic presence of hydrogen, helium, water, or carbon oxide ions. Doped silicon is important for manufacture of semiconductors and semiconductor devices.

Leung, Ka-Ngo (Hercules, CA)

1996-01-01T23:59:59.000Z

224

Microstructure Reconstruction and Direct Evaluation of Li-Ion Battery Cathodes Fuqiang Liu* and N A Siddique  

E-Print Network [OSTI]

Microstructure Reconstruction and Direct Evaluation of Li-Ion Battery Cathodes Fuqiang Liu* and N of Texas at Arlington, Arlington, Texas 76019, USA High-capacity Li-ion batteries are among the best of the major challenges in Li-ion batteries is to improve mass transport across multiple phase interfaces

Liu, Fuqiang

225

SISGR: Linking Ion Solvation and Lithium Battery Electrolyte Properties  

SciTech Connect (OSTI)

The solvation and phase behavior of the model battery electrolyte salt lithium trifluoromethanesulfonate (LiCF3SO3) in commonly used organic solvents; ethylene carbonate (EC), gamma-butyrolactone (GBL), and propylene carbonate (PC) was explored. Data from differential scanning calorimetry (DSC), Raman spectroscopy, and X-ray diffraction were correlated to provide insight into the solvation states present within a sample mixture. Data from DSC analyses allowed the construction of phase diagrams for each solvent system. Raman spectroscopy enabled the determination of specific solvation states present within a solvent-????salt mixture, and X-ray diffraction data provided exact information concerning the structure of a solvates that could be isolated Thermal analysis of the various solvent-salt mixtures revealed the phase behavior of the model electrolytes was strongly dependent on solvent symmetry. The point groups of the solvents were (in order from high to low symmetry): C2V for EC, CS for GBL, and C1 for PC(R). The low symmetry solvents exhibited a crystallinity gap that increased as solvent symmetry decreased; no gap was observed for EC-LiTf, while a crystallinity gap was observed spanning 0.15 to 0.3 mole fraction for GBL-LiTf, and 0.1 to 0.33 mole fraction for PC(R)-LiTf mixtures. Raman analysis demonstrated the dominance of aggregated species in almost all solvent compositions. The AGG and CIP solvates represent the majority of the species in solutions for the more concentrated mixtures, and only in very dilute compositions does the SSIP solvate exist in significant amounts. Thus, the poor charge transport characteristics of CIP and AGG account for the low conductivity and transport properties of LiTf and explain why is a poor choice as a source of Li+ ions in a Li-ion battery.

Trulove, Paul C; Foley, Matthew P

2013-03-14T23:59:59.000Z

226

Lithium Ion Accomplishments  

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

Lithium ion Battery Commercialization Lithium ion Battery Commercialization Johnson Controls-Saft Advanced Power Solutions, of Milwaukee, Wisconsin: Johnson Controls-Saft (JCS) will supply lithium-ion batteries to Mercedes for their S Class Hybrid to be introduced in October 2009. Technology developed with DOE support (the VL6P cell) will be used in the S Class battery. In May 2006, the Johnson Controls-Saft Joint Venture was awarded a 24 month $14.4 million contract by the DOE/USABC to develop a 40kW Li ion HEV battery system offering improved safety, low temperature performance, and cost. JCS has reported a 40% cost reduction of the 40kW system being developed in their DOE/USABC contract while maintaining performance. Lithium Ion Battery Material Commercialization Argonne National Laboratory has licensed cathode materials and associated processing

227

Ion mobility sensor system  

DOE Patents [OSTI]

An ion mobility sensor system including an ion mobility spectrometer and a differential mobility spectrometer coupled to the ion mobility spectrometer. The ion mobility spectrometer has a first chamber having first end and a second end extending along a first direction, and a first electrode system that generates a constant electric field parallel to the first direction. The differential mobility spectrometer includes a second chamber having a third end and a fourth end configured such that a fluid may flow in a second direction from the third end to the fourth end, and a second electrode system that generates an asymmetric electric field within an interior of the second chamber. Additionally, the ion mobility spectrometer and the differential mobility spectrometer form an interface region. Also, the first end and the third end are positioned facing one another so that the constant electric field enters the third end and overlaps the fluid flowing in the second direction.

Xu, Jun; Watson, David B.; Whitten, William B.

2013-01-22T23:59:59.000Z

228

Secondary ion coincidence in highly charged ion based secondary ion mass spectroscopy for process characterization  

SciTech Connect (OSTI)

Coincidence counting in highly charged ion based secondary ion mass spectroscopy has been applied to the characterization of selective tungsten deposition via disilane reduction of tungsten hexafluoride on a patterned SiO{sub 2}/Si wafer. The high secondary ion yield and the secondary ion emission from a small area produced by highly charged ions make the coincidence technique very powerful.

Hamza, A.V.; Schenkel, T.; Barnes, A.V.; Schneider, D.H. [Lawrence Livermore National Laboratory, University of California, Livermore, California, 94551 (United States)] [Lawrence Livermore National Laboratory, University of California, Livermore, California, 94551 (United States)

1999-01-01T23:59:59.000Z

229

ION EXCHANGE PERFORMANCE OF TITANOSILICATES, GERMANATES AND CARBON NANOTUBES  

SciTech Connect (OSTI)

This report presents a summary of testing the affinity of titanosilicates (TSP), germanium-substituted titanosilicates (Ge-TSP) and multiwall carbon nanotubes (MWCNT) for lanthanide ions in dilute nitric acid solution. The K-TSP ion exchanger exhibited the highest affinity for lanthanides in dilute nitric acid solutions. The Ge-TSP ion exchanger shows promise as a material with high affinity, but additional tests are needed to confirm the preliminary results. The MWCNT exhibited much lower affinities than the K-TSP in dilute nitric acid solutions. However, the MWCNT are much more chemically stable to concentrated nitric acid solutions and, therefore, may candidates for ion exchange in more concentrated nitric acid solutions. This technical report serves as the deliverable documenting completion of the FY13 research milestone, M4FT-13SR0303061 measure actinide and lanthanide distribution values in nitric acid solutions with sodium and potassium titanosilicate materials.

Alsobrook, A.; Hobbs, D.

2013-04-24T23:59:59.000Z

230

Declaration of Concentration in Nanotechnology  

E-Print Network [OSTI]

Declaration of Concentration in Nanotechnology Return completed form to ENG Undergraduate Records:____________________________ Instructions: ENG students declaring a Concentration in Nanotechnology should complete this form, obtain REQUIRED COURSES (Choose 1) 1. ENG EC 481­ Fundamentals of Nanomaterials and Nanotechnology 4.0 ELECTIVES

Goldberg, Bennett

231

Project Approval Form Concentration in  

E-Print Network [OSTI]

Project Approval Form Concentration in Nanotechnology Return completed form to ENG Undergraduate Plan to complete the project as a requirement for the concentration in Nanotechnology. Depending upon project, you will need to submit a written summary of your work, signed (approved) by your project

Goldberg, Bennett

232

Process for concentrated biomass saccharification  

DOE Patents [OSTI]

Processes for saccharification of pretreated biomass to obtain high concentrations of fermentable sugars are provided. Specifically, a process was developed that uses a fed batch approach with particle size reduction to provide a high dry weight of biomass content enzymatic saccharification reaction, which produces a high sugars concentration hydrolysate, using a low cost reactor system.

Hennessey, Susan M. (Avondale, PA); Seapan, Mayis (Landenberg, PA); Elander, Richard T. (Evergreen, CO); Tucker, Melvin P. (Lakewood, CO)

2010-10-05T23:59:59.000Z

233

Bachelor Thesis Modeling of Concentration  

E-Print Network [OSTI]

of electrolytes in a microchannel under the influence of an external electrical potential. We investigate indflydelse af en ekstern elektrisk potential. Vi undersøger koncepterne overbegrænsende strøm og ion beskrives af de analytiske udtryk fra mikrokanalen. Numeriske problemer har gjort det svært at forstå hele

234

Ion implantation of silicon nitride ball bearings  

SciTech Connect (OSTI)

Hypothesis for ion implantation effect was that stress concentrations reflected into the bulk due to topography such as polishing imperfections, texture in the race, or transferred material, might be reduced due to surface amorphization. 42 control samples were tested to an intended runout period of 60 h. Six ion implanted balls were tested to an extended period of 150 h. Accelerated testing was done in a V groove so that wear was on two narrow wear tracks. Rutherford backscattering, XRPS, profilometry, optical microscopy, nanoindentation hardness, and white light interferometry were used. The balls were implanted with 150-keV C ions at fluence 1.1x10{sup 17}/cm{sup 2}. The samples had preexisting surface defects (C-cracks), so the failure rate of the control group was unacceptable. None of the ion-implanted samples failed in 150 h of testing. Probability of randomly selecting 6 samples from the control group that would perform this well is about 5%, so there is good probability that ion implantation improved performance. Possible reasons are discussed. Wear tracks, microstructure, and impurity content were studied in possible relation to C-cracks.

Williams, J.M. [Oak Ridge National Lab., TN (United States); Miner, J.R. [United Technologies, Pratt and Whitney, West Palm Beach, FL (United States)

1996-09-01T23:59:59.000Z

235

ECR ion source with electron gun  

DOE Patents [OSTI]

An Advanced Electron Cyclotron Resonance ion source (10) having an electron gun (52) for introducing electrons into the plasma chamber (18) of the ion source (10). The ion source (10) has a injection enclosure (12) and a plasma chamber tank (14). The plasma chamber (18) is defined by a plurality of longitudinal magnets (16). The electron gun (52) injects electrons axially into the plasma chamber (18) such that ionization within the plasma chamber (18) occurs in the presence of the additional electrons produced by the electron gun (52). The electron gun (52) has a cathode (116) for emitting electrons therefrom which is heated by current supplied from an AC power supply (96) while bias potential is provided by a bias power supply (118). A concentric inner conductor (60) and Outer conductor (62) carry heating current to a carbon chuck (104) and carbon pusher (114) Which hold the cathode (116) in place and also heat the cathode (16). In the Advanced Electron Cyclotron Resonance ion source (10), the electron gun (52) replaces the conventional first stage used in prior art electron cyclotron resonance ion generators.

Xie, Zu Q. (El Cerrito, CA); Lyneis, Claude M. (Berkeley, CA)

1993-01-01T23:59:59.000Z

236

The structure and magnetic properties of cobalt ferrite nanoparticles synthesized in a system of direct micelles of amphiphiles by means of ion flotoextraction  

Science Journals Connector (OSTI)

A method for obtaining nanoparticles in a system of direct micelles of amphiphiles using ion flotoextraction for concentrating ions from diluted water solutions is developed. Nanoparticles of the composition CoFe

Yu. A. Mirgorod; N. A. Borshch; V. M. Fedosyuk

2012-03-01T23:59:59.000Z

237

Financial News for Major Energy Companies  

Gasoline and Diesel Fuel Update (EIA)

Second Quarter 2005 Second Quarter 2005 The "Financial News for Major Energy Companies" is issued quarterly to report recent trends in the financial performance of the major energy companies. These include the respondents to Form EIA-28 (Financial Reporting System (FRS)), with the exception of the FRS companies that do not issue quarterly earnings releases or fail to provide separate information for the company's U.S. operations. Twenty-five major energy companies reported overall net income (excluding unusual items) of $23.0 billion on revenues of $276.1 billion during the second quarter of 2005 (Q205). The level of net income for Q205 was 38 percent higher than in the second quarter of 2004 (Q204) (Table 1). Net income for Q205 increased primarily as a result of higher crude oil

238

Financial News for Major Energy Companies  

Gasoline and Diesel Fuel Update (EIA)

Third Quarter 2005 Third Quarter 2005 The "Financial News for Major Energy Companies" is issued quarterly to report recent trends in the financial performance of the major energy companies. These include the respondents to Form EIA-28 (Financial Reporting System (FRS)), with the exception of the FRS companies that do not issue quarterly earnings releases or fail to provide separate information for the company's U.S. operations. Twenty-one 1 major energy companies reported overall net income (excluding unusual items) of $26.0 billion on revenues of $295.1 billion during the third quarter of 2005 (Q305). The level of net income for Q305 was 69 percent higher than in the third quarter of 2004 (Q304) (Table 1). Net income for Q305 increased primarily as a result of higher crude oil and

239

Financial News for Major Energy Companies  

Gasoline and Diesel Fuel Update (EIA)

First Quarter 2006 First Quarter 2006 The "Financial News for Major Energy Companies" is issued quarterly to report recent trends in the financial performance of the major energy companies. These include the respondents to Form EIA-28 (Financial Reporting System (FRS)), with the exception of the FRS companies that do not issue quarterly earnings releases or fail to provide separate information for the company's U.S. operations. Twenty-one major energy companies 1 reported overall net income (excluding unusual items) of $24.1 billion on revenues of $276.6 billion during the first quarter of 2006 (Q106). The level of net income for Q106 was 23 percent higher than in the first quarter of 2005 (Q105) (Table 1). Net income for Q106 increased primarily as a result of higher crude oil and

240

Height modification in grain sorghum lines homozygous for four major height genes  

E-Print Network [OSTI]

is mainly controlled by four major genes which affect elon. ai ion of internodcs. Tl. ere is variation. Eor height aazong and within varier. i. es identical and homozygous for these known genes . Three varietie. . of th height genotype dw ~a dw. du... and three vsrieries of t'ne genotype cw dw dH dwa wore used to dote mine th effectiveness of election for height within major I:e-'. ht genoty:. ;-, . grd ries consisted of each variety as well as progenIes from all possi- ble cro=s s and reciprocal...

Thompson, Tommy Earl

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "major ion concentrations" 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

CONCENTRATES  

Science Journals Connector (OSTI)

Tertiary oil recovery shows promise with a new nonthermal process developed by Marathon Oil Co., Findlay, Ohio. ... Marathon says tests in its old southeastern Illinois oil field (only 60 to 65% depleted) show that the scheme can recover a high proportion of the remaining petroleum. ... The company ran two oil-well test patterns, injecting emulsion in the center well and drawing up fluid in surrounding wells. ...

1966-09-19T23:59:59.000Z

242

CONCENTRATES  

Science Journals Connector (OSTI)

A possible new gamma ray source in the constellation Scorpius will be sought by Dr. Robert C. Haymes, Rice University, using a gamma ray telescope mounted on a balloon launched in Argentina. ... Radiation analysis should tell whether the rays come from an exploding star, high energy particles, or anti-matter. ...

1969-10-20T23:59:59.000Z

243

CONCENTRATES  

Science Journals Connector (OSTI)

Cadarache, France, was selected last week to be the site for the International Thermonuclear Experimental Reactor (ITER) project. ... ITER's goal is to demonstrate a self-sustaining fusion reaction in a power-plant-like environment that could lead to commercial nuclear fusion power plants by the turn of the century, said Raymond L. Orbach, head of the Department of Energy's Office of Science. ...

2005-07-04T23:59:59.000Z

244

CONCENTRATES  

Science Journals Connector (OSTI)

EVONIK PULLS BACK IPO, INVESTS IN R&DEvonik Industries has once again shelved an initial public offering (IPO) of stock. In April, RAG Foundation, which owns about 75% of the firm, said that it was considering an IPO within the next 15 months and that ...

2011-10-03T23:59:59.000Z

245

CONCENTRATES  

Science Journals Connector (OSTI)

The student-designed homes were required to provide enough electricity to meet all home energy needs as well as enough to charge up an electric car. ...

2002-10-14T23:59:59.000Z

246

CONCENTRATES  

Science Journals Connector (OSTI)

The Department of Energy last week denied $2 billion in loan guarantees sought by the global energy company USEC to continue construction of its partially complete centrifuge-based uranium enrichment facility in Piketon, Ohio, which would create low-enrichment uranium (LEU) fuel for nuclear power plants. ... DOE did, however, offer USEC some $45 million in grants for further research. ... Currently, USEC produces about half the nations LEU reactor fuel primarily by down-blending Russian bomb-grade uranium, along with using an older, noncentrifuge-based enrichment technology. ...

2009-08-03T23:59:59.000Z

247

CONCENTRATES  

Science Journals Connector (OSTI)

CSB SLAMS XCEL ENERGY FOR DEADLY ACCIDENT ... A flash fire that killed five workers in a deep underground tunnel nearly three years ago was caused by safety failures of Xcel Energy and contractor RPI Coating, says a report by the Chemical Safety & Hazard Investigation Board (CSB), released on Aug. 25. ... CSBs report blamed Xcel and RPI for failing to train workers and to take adequate precautions when handling MEK. ...

2010-08-30T23:59:59.000Z

248

CONCENTRATES  

Science Journals Connector (OSTI)

GAO faults NRC for oversight of nuclear plant security plansThe Nuclear Regulatory Commission (NRC) is relying too heavily on nuclear power plant owners to verify the adequacy of their terrorism security plans, says a recent report by the Government ...

2004-09-20T23:59:59.000Z

249

CONCENTRATES  

Science Journals Connector (OSTI)

Worldwide, chemical industry products reduced emissions of greenhouse gases far more than the emissions generated in making these products, according to a study by McKinsey & Co. ... Next came compact fluorescent lighting, fertilizers, and lightweight composite materials. ...

2009-07-13T23:59:59.000Z

250

CONCENTRATES  

Science Journals Connector (OSTI)

A team led by Amy E. Landis of the University of Pittsburgh evaluated a dozen polymers: seven derived from petroleum, four from biomass feedstocks, and one in part from both sources. ...

2010-10-04T23:59:59.000Z

251

CONCENTRATES  

Science Journals Connector (OSTI)

DOE announces cleanups, fines, new safety plans ... DOE also announced $124,000 in fines against contractors operating at the Hanford Site in Washington, the Rocky Flats Site in Colorado, and the Idaho National Engineering & Environmental Laboratory for endangering workers through exposure to radioactive contamination.? ...

2000-06-05T23:59:59.000Z

252

CONCENTRATES  

Science Journals Connector (OSTI)

COURT BACKS LILLY IN PATENT CASEA federal appeals court has ruled in favor of Eli Lilly & Co. in a patent dispute with Ariad Pharmaceuticals. The U.S. Court of Appeals for the Federal Circuit found that Lilly did not violate a patent held by Ariad ...

2010-03-29T23:59:59.000Z

253

CONCENTRATES  

Science Journals Connector (OSTI)

TECHNOLOGY ... A thermocouple developed by North American Rockwell for the Apollo lunar landing program will be manufactured and marketed by William Wahl Corp., Santa Monica, Calif. ... Potential uses include making refractory metals and development of gas turbine engines, a company spokesman says. ...

1969-10-13T23:59:59.000Z

254

CONCENTRATES  

Science Journals Connector (OSTI)

For instance, Los Alamos National Laboratory officials believe that using plutonium in NIF and achieving repeatable thermonuclear ignition is critical to NIF's value in weapons work, yet NIF has not been approved for plutonium use and its ability to achieve nuclear ignition is uncertain, the report says. ...

2001-06-11T23:59:59.000Z

255

TVDG Ion Species  

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

Most Commonly Used Ions Most Commonly Used Ions Many other ions can be produced if required. Due to the number of available ions we have to know, in advance, what ions and LETs you plan to use. Please use the Time Request fill-in form to let us know which ions you will be using. In addition to the maximum energies, ranges and corresponding LETs listed below, lower energies are available for each ion. Charts for range and LET values as a function of energy can be seen by clicking on the links in the LET columns. Flux can be in the range of 1 particle/cm2/sec to greater than 1 · 106 particles/cm2/sec. In Silicon High LET Summary Low LET Summary In GaAs High LET Summary Low LET Summary How To Use The Charts Below Mass Max Energy Surface LET Range Surface LET Range Z Symbol AMU MeV MeV

256

Optical pumping of ions  

Science Journals Connector (OSTI)

Radiofrequency spectroscopy has been extended to positive ions with S ground states by means of optical pumping. The ions are stored in buffer gases or ion traps and are polarized directly by optical pumping or indirectly by spin exchange, change exchange, or Penning ionization with optically pumped atoms. The applied methods are described. The experiments can be divided into two categories: Collisional interactions of the polarized ions are investigated, like the exchange processes mentioned above, spin exchange with free electrons, spin depolarization and hyperfine density shifts in rare gases. For the two latter effects drastic differences are observed between atomic and ionic 2S12 states the explanations of which reveal the influence of the ionic charge on the interactions. The comparison of equivalent processes involving isoelectronic 2S or 2P configurations of atoms and ions provides a test of current collision theories. Precision rf spectroscopy of ionic ground states yields the 2S12 hyperfine structure splittings of 3He+ and group II ions with relative accuracies of up to 10?9, with further improvement possible. Direct and indirect optical pumping of 1S0 ions is used to determine nuclear magnetic moments, diamagnetic shielding coefficients, and chemical shifts. Applications and further developments of the present methods are discussed.

E.W. Weber

1977-01-01T23:59:59.000Z

257

Phase Separation Dynamics in Isotropic Ion-Intercalation Particles  

E-Print Network [OSTI]

Lithium-ion batteries exhibit complex nonlinear dynamics, resulting from diffusion and phase transformations coupled to ion intercalation reactions. Using the recently developed Cahn-Hilliard reaction (CHR) theory, we investigate a simple mathematical model of ion intercalation in a spherical solid nanoparticle, which predicts transitions from solid-solution radial diffusion to two-phase shrinking-core dynamics. This general approach extends previous Li-ion battery models, which either neglect phase separation or postulate a spherical shrinking-core phase boundary, by predicting phase separation only under appropriate circumstances. The effect of the applied current is captured by generalized Butler-Volmer kinetics, formulated in terms of diffusional chemical potentials, and the model consistently links the evolving concentration profile to the battery voltage. We examine sources of charge/discharge asymmetry, such as asymmetric charge transfer and surface "wetting" by ions within the solid, which can lead to...

Zeng, Yi

2013-01-01T23:59:59.000Z

258

Relating to ion detection  

DOE Patents [OSTI]

The apparatus and method provide a technique for improving detection of alpha and/or beta emitting sources on items or in locations using indirect means. The emission forms generate ions in a medium surrounding the item or location and the medium is then moved to a detecting location where the ions are discharged to give a measure of the emission levels. To increase the level of ions generated and render the system particularly applicable for narrow pipes and other forms of conduits, the medium pressure is increased above atmospheric pressure. STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

Orr, Christopher Henry (Calderbridge, GB); Luff, Craig Janson (Calderbridge, GB); Dockray, Thomas (Calderbridge, GB); Macarthur, Duncan Whittemore (Los Alamos, NM)

2001-01-01T23:59:59.000Z

259

Revised 2/2012 PSYCHOLOGY MAJOR  

E-Print Network [OSTI]

Revised 2/2012 PSYCHOLOGY MAJOR REQUIREMENTS (Effective August 2012) Name: ID#: First Semester FOUNDATION COURSES (20 units): PSYC-101 General Psychology PSYC-260 Psychological Statistics PSYC-270 Biological Psychology RHET 203 Writing in Psychology (or RHET 301) PSYC-265 Research Design ONE DIVERSITY

Galles, David

260

HEALTH AND SAFETY PROCEDURES -Major Projects  

E-Print Network [OSTI]

HEALTH AND SAFETY PROCEDURES - Major Projects HEALTH & SAFETY UNIT SPRING 2006 #12;CONTENTS of this document is to provide the University with a summary of the principle activities in construction projects the reliance on physical controls and use of personnel protective equipment. The procedures that consider

Note: This page contains sample records for the topic "major ion concentrations" 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

The Political Science Major Johns Hopkins University  

E-Print Network [OSTI]

The Political Science Major Johns Hopkins University The Department The programs of the Political Science department are designed to help students attain a deeper understanding of politics in its various dimensions. The department encourages students to become sophisticated theoretically and to study politics

Niebur, Ernst

262

Performance Profiles of Major Energy Producers  

Reports and Publications (EIA)

The information and analyses in Performance Profiles of Major Energy Producers is intended to provide a critical review, and promote an understanding, of the possible motivations and apparent consequences of investment decisions made by some of the largest corporations in the energy industry.

2011-01-01T23:59:59.000Z

263

Dance Major Handbook 2013-14  

E-Print Network [OSTI]

UMass Dance Major Handbook 2013-14 #12;TABLE OF CONTENTS Introduction1 Choreography Crew Workshops Semester Activity Requirements Grade Point Average Physical and Mental Conditioning #12;1. INTRODUCTION Welcome to the University of Massachusetts at Amherst Dance Program! This handbook

Massachusetts at Amherst, University of

264

Sustainability Studies at WWU Minor and Major  

E-Print Network [OSTI]

Sustainability Studies at WWU ­ Minor and Major Schematic Concept Draft October 13, 2008 Sustainability Faculty and Advisement: WWU Sustainability Academy WWW SUSTAINABILITY MINOR -- 30 Credits A. Sustainability Literacy, (4 Credits) B Sustainability research skills (9 Credits) C. Research and seminars

Zaferatos, Nicholas C.

265

Ion transport in sub-5-nm graphene nanopores  

SciTech Connect (OSTI)

Graphene nanopore is a promising device for single molecule sensing, including DNA bases, as its single atom thickness provides high spatial resolution. To attain high sensitivity, the size of the molecule should be comparable to the pore diameter. However, when the pore diameter approaches the size of the molecule, ion properties and dynamics may deviate from the bulk values and continuum analysis may not be accurate. In this paper, we investigate the static and dynamic properties of ions with and without an external voltage drop in sub-5-nm graphene nanopores using molecular dynamics simulations. Ion concentration in graphene nanopores sharply drops from the bulk concentration when the pore radius is smaller than 0.9nm. Ion mobility in the pore is also smaller than bulk ion mobility due to the layered liquid structure in the pore-axial direction. Our results show that a continuum analysis can be appropriate when the pore radius is larger than 0.9nm if pore conductivity is properly defined. Since many applications of graphene nanopores, such as DNA and protein sensing, involve ion transport, the results presented here will be useful not only in understanding the behavior of ion transport but also in designing bio-molecular sensors.

Suk, Myung E.; Aluru, N. R., E-mail: aluru@illinois.edu [Department of Mechanical Science and Engineering, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (United States)

2014-02-28T23:59:59.000Z

266

Carbon ion pump for removal of carbon dioxide from combustion gas and other gas mixtures  

DOE Patents [OSTI]

A novel method and system of separating carbon dioxide from flue gas is introduced. Instead of relying on large temperature or pressure changes to remove carbon dioxide from a solvent used to absorb it from flue gas, the ion pump method, as disclosed herein, dramatically increases the concentration of dissolved carbonate ion in solution. This increases the overlying vapor pressure of carbon dioxide gas, permitting carbon dioxide to be removed from the downstream side of the ion pump as a pure gas. The ion pumping may be obtained from reverse osmosis, electrodialysis, thermal desalination methods, or an ion pump system having an oscillating flow in synchronization with an induced electric field.

Aines, Roger D.; Bourcier, William L.

2014-08-19T23:59:59.000Z

267

Carbon ion pump for removal of carbon dioxide from combustion gas and other gas mixtures  

DOE Patents [OSTI]

A novel method and system of separating carbon dioxide from flue gas is introduced. Instead of relying on large temperature or pressure changes to remove carbon dioxide from a solvent used to absorb it from flue gas, the ion pump method, as disclosed herein, dramatically increases the concentration of dissolved carbonate ion in solution. This increases the overlying vapor pressure of carbon dioxide gas, permitting carbon dioxide to be removed from the downstream side of the ion pump as a pure gas. The ion pumping may be obtained from reverse osmosis, electrodialysis, thermal desalination methods, or an ion pump system having an oscillating flow in synchronization with an induced electric field.

Aines, Roger D. (Livermore, CA); Bourcier, William L. (Livermore, CA)

2010-11-09T23:59:59.000Z

268

ARM - Measurement - Organic Carbon Concentration  

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

govMeasurementsOrganic Carbon Concentration govMeasurementsOrganic Carbon Concentration ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Organic Carbon Concentration The concentration of carbon bound in organic compounds. Categories Aerosols Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments ACSM : Aerosol Chemical Speciation Monitor Field Campaign Instruments AEROSCARBON : Aerosol Carbon Analyzer AEROSMASSSPEC : Aerosol Mass Spectrometer Datastreams AOS : Aerosol Observing System Datastreams

269

Concentration oscillations and efficiency: glycolysis  

Science Journals Connector (OSTI)

...partitioning of the total free energy decrease, we postulate...Concentration Oscillations and Efficiency: Glycolysis Abstract...the point of view of efficiency offree energy conversion. It is suggested...the adenosine phosphate pool: the PFK reaction at...

PH Richter; J Ross

1981-02-13T23:59:59.000Z

270

Reversible concentric ring microfluidic interconnects  

E-Print Network [OSTI]

A reversible, Chip-to-Chip microfluidic interconnect was designed for use in high temperature, high pressure applications such as chemical microreactor systems. The interconnect uses two sets of concentric, interlocking ...

Thompson, Mary Kathryn, 1980-

2004-01-01T23:59:59.000Z

271

Concentrated Thermoelectric Power | Department of Energy  

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

Concentrated Thermoelectric Power This fact sheet describes a concentrated solar hydroelectric power project awarded under the DOE's 2012 SunShot Concentrating Solar Power R&D...

272

HEAVY ION INERTIAL FUSION  

E-Print Network [OSTI]

Accelerators as Drivers for Inertially Confined Fusion, W.B.LBL-9332/SLAC-22l (1979) Fusion Driven by Heavy Ion Beams,OF CALIFORNIA f Accelerator & Fusion Research Division

Keefe, D.

2008-01-01T23:59:59.000Z

273

Focused ion beam system  

DOE Patents [OSTI]

A focused ion beam (FIB) system produces a final beam spot size down to 0.1 {mu}m or less and an ion beam output current on the order of microamps. The FIB system increases ion source brightness by properly configuring the first (plasma) and second (extraction) electrodes. The first electrode is configured to have a high aperture diameter to electrode thickness aspect ratio. Additional accelerator and focusing electrodes are used to produce the final beam. As few as five electrodes can be used, providing a very compact FIB system with a length down to only 20 mm. Multibeamlet arrangements with a single ion source can be produced to increase throughput. The FIB system can be used for nanolithography and doping applications for fabrication of semiconductor devices with minimum feature sizes of 0.1 m or less. 13 figs.

Leung, K.; Gough, R.A.; Ji, Q.; Lee, Y.Y.

1999-08-31T23:59:59.000Z

274

Ion Channels as Devices  

Science Journals Connector (OSTI)

Ion channels are proteins with a hole down ... biological function. Channels are devices in the engineering sense of the word and engineering analysis helps understand their function. In particular ... The curren...

Bob Eisenberg

2003-12-01T23:59:59.000Z

275

Ion manipulation device  

DOE Patents [OSTI]

An ion manipulation method and device is disclosed. The device includes a pair of substantially parallel surfaces. An array of inner electrodes is contained within, and extends substantially along the length of, each parallel surface. The device includes a first outer array of electrodes and a second outer array of electrodes. Each outer array of electrodes is positioned on either side of the inner electrodes, and is contained within and extends substantially along the length of each parallel surface. A DC voltage is applied to the first and second outer array of electrodes. A RF voltage, with a superimposed electric field, is applied to the inner electrodes by applying the DC voltages to each electrode. Ions either move between the parallel surfaces within an ion confinement area or along paths in the direction of the electric field, or can be trapped in the ion confinement area.

Anderson, Gordon A; Smith, Richard D; Ibrahim, Yehia M; Baker, Erin M

2014-09-16T23:59:59.000Z

276

Ion electric propulsion unit  

DOE Patents [OSTI]

An electron cyclotron resonance (ECR) thruster is disclosed having a plasma chamber which is electrically biased with a positive voltage. The chamber bias serves to efficiently accelerate and expel the positive ions from the chamber. Electrons follow the exiting ions, serving to provide an electrically neutral exhaust plume. In a further embodiment, a downstream shaping magnetic field serves to further accelerate and/or shape the exhaust plume.

Light, Max E; Colestock, Patrick L

2014-01-28T23:59:59.000Z

277

Cathode materials for lithium ion batteries prepared by sol-gel methods  

Science Journals Connector (OSTI)

Improving the preparation technology and electrochemical performance of cathode materials for lithium ion batteries is a current major focus of research and development in the areas of materials, power sources...

H. Liu; Y. P. Wu; E. Rahm; R. Holze; H. Q. Wu

2004-06-01T23:59:59.000Z

278

Positions in the glun2c-containing nmdar regulate alcohol sensitivity and ion channel gating.  

E-Print Network [OSTI]

?? The N-methyl-D-aspartate (NMDA) receptor, a subtype of glutamate-gated ion channel, has been shown to be a major target of ethanol in the central nervous (more)

Wu, Man

2014-01-01T23:59:59.000Z

279

aml documents/undergrad MAJOR-10 REQUIREMENTS FOR THE B.A. ECONOMICS MAJOR  

E-Print Network [OSTI]

aml documents/undergrad MAJOR-10 April 2011 REQUIREMENTS FOR THE B.A. ECONOMICS MAJOR UNIVERSITY credit for Econ 2010/2020 and Econ 1000. choose one Track 1 Transfer 6hrs. of Principles of Micro and Macro Economics to C.U. OR Track 2 Econ 2010 Prin. of Microeconomics AND Econ 2020 Prin

Stowell, Michael

280

Environmental Effects Abroad of Major Federal Actions  

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

44-NO. 62 44-NO. 62 3-29-79 PAGES 18633-18921 E THURSDAY, MARCH 29, 1979 € 18722 NOTICES [ 31 25-01-MI COUNCIL ON ENVIRONMENTAL QUALITY 'ENVIRONMENTAL EFFECTS ABROAD OF MAJOR FEDERAL ACTIONS Executive Order 12144; Implementing and Explanotory Documents MARCH 21, 1979. AGENCY: Council on Environmental Quality, Executive Office of t h e F'resi- dent. ACTION: Information Only: Publica- tion of Implementing Documents Con- cerning Executive Order 12114. SUMMARY: O n January 4, 1979, t h e President signed Executive Order 12114, Environmental Effects Abroad of Major Federal Actions (44 FR 1957 (Jan. 9, 1979)). The Council has re- ceived numerous requests for t h e im- plementing and explanatory docu- ments. I n order efficiently to respond to such public requests. t

Note: This page contains sample records for the topic "major ion concentrations" 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

Performance Profiles of Major Energy Producers 1995  

Gasoline and Diesel Fuel Update (EIA)

5) 5) Distribution Category UC-950 Performance Profiles of Major Energy Producers 1995 January 1997 Energy Information Administration Office of Energy Markets and End Use U.S. Department of Energy Washington, DC 20585 This report was prepared by the Energy Information Administration, the independent statistical and analytical agency within the Department of Energy. The information contained herein should not be construed as advocating or reflecting any policy position of the Department of Energy or any other organization. Energy Information Administration/ Performance Profiles of Major Energy Producers 1995 ii To download the Financial Reporting System 1977-1995 data files, access the Energy Information Center's FTP site, at ftp: //ftp.eia.doe.gov or access the Energy Information Administration's Home Page at http://www.eia.doe.gov.

282

Performance Profiles of Major Energy Producers 1996  

Gasoline and Diesel Fuel Update (EIA)

6) 6) Distribution Category UC-950 Performance Profiles of Major Energy Producers 1996 January 1998 Energy Information Administration Office of Energy Markets and End Use U.S. Department of Energy Washington, DC 20585 This report was prepared by the Energy Information Administration, the independent statistical and analytical agency within the U.S. Department of Energy. The information contained herein should be attributed to the Energy Information Administration and should not be construed as advocating or reflecting any policy position of the Department of Energy or any other organization. Energy Information Administration/ Performance Profiles of Major Energy Producers 1996 ii The Financial Reporting System 1977-1996 data files can be downloaded from the Energy Information

283

Performance Profiles of Major Energy Producers 1997  

Gasoline and Diesel Fuel Update (EIA)

7) 7) Distribution Category UC-950 Performance Profiles of Major Energy Producers 1997 January 1999 Energy Information Administration Office of Energy Markets and End Use U.S. Department of Energy Washington, DC 20585 This report was prepared by the Energy Information Administration, the independent statistical and analytical agency within the U.S. Department of Energy. The information contained herein should be attributed to the Energy Information Administration and should not be construed as advocating or reflecting any policy position of the Department of Energy or any other organization. Energy Information Administration/ Performance Profiles of Major Energy Producers 1997 ii The Financial Reporting System 1977-1997 data files can be downloaded from the Energy Information Administration's

284

Major Energy Electric Services | Open Energy Information  

Open Energy Info (EERE)

Electric Services Electric Services Jump to: navigation, search Name Major Energy Electric Services Place New York Utility Id 56504 Utility Location Yes Ownership R NERC Location NPCC ISO NY Yes Activity Retail Marketing Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png No rate schedules available. Average Rates Residential: $0.0967/kWh Commercial: $0.1070/kWh References ↑ "EIA Form EIA-861 Final Data File for 2010 - File1_a" Retrieved from "http://en.openei.org/w/index.php?title=Major_Energy_Electric_Services&oldid=411033" Categories: EIA Utility Companies and Aliases

285

Overview of Commercial Buildings, 2003 - Major Characteristics  

U.S. Energy Information Administration (EIA) Indexed Site

Major Characteristics of All Commercial Buildings in 2003 Major Characteristics of All Commercial Buildings in 2003 CBECS data are used to answer basic questions about the commercial buildings sector, such as: What types are there? How large are they? How old are they? and Where are they? Results from the 2003 CBECS show that: The commercial buildings sector is not dominated by a single building type. Office buildings, the most common type of commercial building, account for 17 percent of buildings, floorspace, and energy consumed. Commercial buildings range widely in size and smaller buildings are much more numerous than larger buildings. The smallest buildings (1,001 to 5,000 square feet) account for 53 percent of buildings, but consume only 11 percent of total energy. The largest buildings (those larger than 500,000 square feet)

286

NREL: Concentrating Solar Power Research - Concentrating Solar Power  

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

Concentrating Solar Power Resource Maps Concentrating Solar Power Resource Maps These direct-normal solar radiation maps-filtered by solar resource and land availability-identify the most economically suitable lands available for deploying of large-scale concentrating solar power plants in the southwestern United States. Each of the following seven states, as well as the southwestern U.S. region, has two maps: the left and right maps represent analyses excluding land with slopes >1% and >3%, respectively. Lower-resolution jpg versions are available below; much higher-resolution pdf files, suitable for plotting large-scale posters, can be requested. You can also access an unfiltered direct-normal solar radiation map of the southwestern United States. Download Adobe Reader. Southwestern U.S.

287

Design and development of a high-concentration photovoltaic concentrator  

SciTech Connect (OSTI)

The design and development of a high concentration photovoltaic concentrator module is discussed. The design concept described herein incorporates a curved groove domed Fresnel lens, a high concentration etched multiple vertical junction (EMVJ) solar cell and a passively cooled direct-bonded copper cell mount all packaged in a plastic module. Two seven inch diameter 1200x domed Fresnel lenses were fabricated using single point diamond turning technology. Testing at both GE and Sandia confirmed optical transmission efficiencies of over 83%. Samples of the latest available EMVJ cells were mounted and installed, with a domed Fresnel lens, into a prototype module. Subsequent testing demonstrated net lens-cell efficiencies of 10 to 13%. As a result of this program, salient conclusions have been formulated as to this technology.

Hodge, R C

1982-04-01T23:59:59.000Z

288

Genealogy of major U.S. refiners  

U.S. Energy Information Administration (EIA) Indexed Site

of major U.S. refiners of major U.S. refiners 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 Amoco SOHIO BP ARCO Mapco Williams Clark Refining 1/89 12/98 4/00 3/98 Orion Diamond Shamrock Ultramar k 12/96 7/03 Ultramar Diamond Shamrock (UDS) Total North America UDS 9/97 Valero Salomon (Basis) Valero Williams BP BP b BP-Husky Refining LLC (jv) Husky Huntway 5/97 6/01 9/05 Valero Premcor g Valero Valero Valero 12/01 7/94 e 12/98 f Carlyle Group y Coastal 3/03 d 12/88 a 6/01 o Sun Company Sunoco v 7/07 i 4/08 c 5/04 h Pacific Refining (jv) 12/88 r El Paso 1/04 w 10/98 m 6/00 n 9/89 t 8/94 u See notes, footnotes, and source notes below. PBF Energy 6/10 p 12/10 q 3/11 x 10/11 j 9/00 l 1/01 s Genealogy of major U.S. refiners (continued) 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013

289

Cadmium and zinc concentrations in the potable water of the Eastern Province of Saudi Arabia  

SciTech Connect (OSTI)

The effects of acute cadmium poisoning on humans are very serious. Among them are hypertension, cardiovascular disorders, kidney damage and destruction of red blood cells and testicular tissues. It is believed that much of the physiological action of cadmium is due to its replacement of zinc in some enzymes thereby impairing its catalytic activity. Previous studies on rats indicated that the dietary level of zinc can influence susceptibility to cadmium. The Eastern Province of the Kingdom of Saudi Arabia is undergoing extensive industrialization, crude oil exploration, production, processing and exportation. All of these are sources of trace heavy metal pollution. It is inhabited by a population where private and public water wells, particularly in the rural areas, are in most cases the major source of potable water. This paper deals with the determination of cadmium and zinc concentration in the potable water of the Eastern Province in order to generate baseline data to enable the medically qualified members of the research team to study the possible relationship between these two ions and cardiovascular morbidity in the population consuming this water.

Mustafa, H.T.; Hassan, H.M.A.; Abo-Melha, A.; Rihan, T.I.

1988-03-01T23:59:59.000Z

290

Identification and Properties of a Major Plasma Metabolite of Irinotecan (CPT-11) Isolated from the Plasma of Patients  

Science Journals Connector (OSTI)

...Properties of a Major Plasma Metabolite of Irinotecan...was vaporized at atmospheric pressure, and ions...injection of patient plasma extract. The total...extracts of 6-7 ml plasma, was dried down...at 6(X).13 MHz for proton observation...in a humidified atmosphere (37 C)containing...

Laurent P. Rivory; Jean-Franois Riou; Marie-Christine Haaz; Serge Sable; Marc Vuilhorgne; Alain Commeron; Susan M. Pond; and Jacques Robert

1996-08-15T23:59:59.000Z

291

Ion optics of RHIC EBIS  

SciTech Connect (OSTI)

RHIC EBIS has been commissioned to operate as a versatile ion source on RHIC injection facility supplying ion species from He to Au for Booster. Except for light gaseous elements RHIC EBIS employs ion injection from several external primary ion sources. With electrostatic optics fast switching from one ion species to another can be done on a pulse to pulse mode. The design of an ion optical structure and the results of simulations for different ion species are presented. In the choice of optical elements special attention was paid to spherical aberrations for high-current space charge dominated ion beams. The combination of a gridded lens and a magnet lens in LEBT provides flexibility of optical control for a wide range of ion species to satisfy acceptance parameters of RFQ. The results of ion transmission measurements are presented.

Pikin, A.; Alessi, J.; Beebe, E.; Kponou, A.; Okamura, M.; Raparia, D.; Ritter, J.; Tan, Y.; Kuznetsov, G.

2011-09-10T23:59:59.000Z

292

Development of an spFRET method to measure structure changes in ion exchange proteins  

E-Print Network [OSTI]

transporter, major facilitator superfamily, membrane transport, membrane transporter, OxlT, single molecule, spFRET, transport protein. Tightly coupled ion exchangers, such as the AE anion exchange systems only take place at an appreciable rate if a suitable substrate ion is bound to the transport site

Novotny, Lukas

293

Efficient Reformulation of Solid-Phase Diffusion in Physics-Based Lithium-Ion Battery Models  

E-Print Network [OSTI]

Efficient Reformulation of Solid-Phase Diffusion in Physics-Based Lithium-Ion Battery Models or approximation for the solid phase. One of the major difficulties in simulating Li-ion battery models is the need typically solve electrolyte con- centration, electrolyte potential, solid-state potential, and solid-state

Subramanian, Venkat

294

Heavy Ions - Cyclotron  

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

Heavy Ions Heavy Ions Heavy ions used at the BASE Facility are accelerated in the form of "cocktails," named because of the fact that several heavy ions with the same mass-to-charge ratio are sent into the Cyclotron, which accelerates the ions while acting as a precision mass separator. The Control Room Operator then uses Cyclotron frequency to select only the desired ion, a process that takes about 2 minutes. We provide four standard cocktails: 4.5, 10, 16, and 30 MeV/nucleon. Depending on the cocktail, LETs from 1 to 100 MeV/(mg/cm^2) and flux levels of up to 1E7 ions/cm2-sec are available. Parts are tested in our vacuum chamber, and can be remotely positioned horizontally, vertically, or rotationally (y and z axes) with the motion table. An alignment laser is available to ensure the part is in the center of the beam. Mounting hardware is readily available. 12xBNC (F-F), 2x25-pin D (F-M or M-F), 4x40-pin flat ribbon (M-M), 4x50-pin flat ribbon (M-M), 12xSMA (F-F), and 2xEthernet vacuum feedthroughs are mounted upon request. (The 4x40-pin and 4x50-pin flat ribbon connectors are wired straight across, so you will need a F-F adapter to correct the pin numbers to normal.) Holes are provided through the cave shielding blocks for connecting additional test equipment, with a distance of approximately 10 feet from vacuum feedthrough to the top of the shielding block.

295

Silane discharge ion chemistry  

SciTech Connect (OSTI)

Silane dc, rf, and dc proximity discharges have been studied using mass spectroscopic measurements of the positive ions as a detailed diagnostic for the type of discharge used to produce hydrogenated amorphous silicon solar photovoltaic cells. The properties and quality of these films depends in a very complex way upon the interactions of the many reactive neutral and ion species in the discharge. Qualitative models of the ion chemical processes in these discharges have been developed from experimental measurements. Knowledge of the ion-molecule and electron-molecule collision cross sections is important to any attempt at understanding silane discharge chemistry. Consequently, the electron impact ionization cross sections for silane and disilane have been measured and for comparison purposes also for methane and ethane. In addition, the rate coefficients for charge exchange reactions of He , Ne , and Ar with silane, disilane, methane, and ethane have been measured as these are important to understanding discharges in inert gas-silane mixtures. A detailed quantitative model of the cathode sheath region of a silane dc discharge has been developed by extending the best recent calculation of the electron motion in the sheath to a self-consistent form which includes the ion motion. This model is used with comparison of silane dc discharge data to diagnose the ion chemistry occurring in the sheath region of silane dc discharge. The understanding of the discharge ion chemical processes that have been gained in this study represent an important step toward understanding the chemical and physical processes leading to film growth.

Chatham, R.H. III

1984-01-01T23:59:59.000Z

296

Magnesium behavior and structural defects in Mg+ ion implanted silicon carbide  

SciTech Connect (OSTI)

As a candidate material for fusion reactor applications, silicon carbide (SiC) undergoes transmutation reactions under high-energy neutron irradiation with magnesium as the major metallic transmutant; the others include aluminum, beryllium and phosphorus in addition to helium and hydrogen gaseous species. The impact of these transmutants on SiC structural stability is currently unknown. This study uses ion implantation to introduce Mg into SiC. Multiaxial ion-channeling analysis of the as-produced damage state suggests that there are preferred Si <100> interstitial splits. The microstructure of the annealed sample was examined using high-resolution scanning transmission electron microscopy. The results show a high concentration of likely non-faulted tetrahedral voids and possible stacking fault tetrahedra near the damage peak. In addition to lattice distortion, dislocations and intrinsic and extrinsic stacking faults are also observed. Magnesium in 3C-SiC prefers to substitute for Si and it forms precipitates of cubic Mg2Si and tetragonal MgC2. The diffusion coefficient of Mg in 3C-SiC single crystal at 1573 K has been determined to be 3.80.410e-19 m2/sec.

Jiang, Weilin; Jung, Hee Joon; Kovarik, Libor; Wang, Zhaoying; Roosendaal, Timothy J.; Zhu, Zihua; Edwards, Danny J.; Hu, Shenyang Y.; Henager, Charles H.; Kurtz, Richard J.; Wang, Yongqiang

2015-01-01T23:59:59.000Z

297

Ion temperature gradient driven turbulence with strong trapped ion resonance  

SciTech Connect (OSTI)

A theory to describe basic characterization of ion temperature gradient driven turbulence with strong trapped ion resonance is presented. The role of trapped ion granulations, clusters of trapped ions correlated by precession resonance, is the focus. Microscopically, the presence of trapped ion granulations leads to a sharp (logarithmic) divergence of two point phase space density correlation at small scales. Macroscopically, trapped ion granulations excite potential fluctuations that do not satisfy dispersion relation and so broaden frequency spectrum. The line width from emission due only to trapped ion granulations is calculated. The result shows that the line width depends on ion free energy and electron dissipation, which implies that non-adiabatic electrons are essential to recover non-trivial dynamics of trapped ion granulations. Relevant testable predictions are summarized.

Kosuga, Y., E-mail: kosuga@riam.kyushu-u.ac.jp [Institute for Advanced Study, Kyushu University, Fukuoka (Japan); Research Institute for Applied Mechanics, Kyushu University, Fukuoka (Japan); Itoh, S.-I. [Research Center for Plasma Turbulence, Kyushu University, Fukuoka (Japan); Research Institute for Applied Mechanics, Kyushu University, Fukuoka (Japan); Diamond, P. H. [CASS and CMTFO, University of California at San Diego, La Jolla, California 92093 (United States); WCI Center for Fusion Theory, National Fusion Research Institute, Daejeon (Korea, Republic of); Itoh, K. [National Institute for Fusion Science, Gifu (Japan); Research Center for Plasma Turbulence, Kyushu University, Fukuoka (Japan); Lesur, M. [Research Institute for Applied Mechanics, Kyushu University, Fukuoka (Japan)

2014-10-15T23:59:59.000Z

298

ARM - Measurement - Trace gas concentration  

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

govMeasurementsTrace gas concentration govMeasurementsTrace gas concentration ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Trace gas concentration The amount per unit volume of trace gases other than carbon dioxide, ozone and water vapor, typically measured in conjunction with in situ aerosol measurements, e.g. carbon monoxide, nitrogen oxides, sulfur dioxide. Categories Atmospheric Carbon, Atmospheric State Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments CO : Carbon Monoxide Mixing Ratio System

299

Second Major U.S. Climate Change Science Program Report Issued | Department  

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

Second Major U.S. Climate Change Science Program Report Issued Second Major U.S. Climate Change Science Program Report Issued Second Major U.S. Climate Change Science Program Report Issued July 10, 2007 - 2:54pm Addthis Report Evaluates the Emissions, Energy, and Economic Implications of Stabilizing Greenhouse Gas Concentrations WASHINGTON, DC - The U.S. Climate Change Science Program (CCSP) today announced the release of the second in a series of 21 Synthesis and Assessment (S&A) reports. Coordinated by the U.S. Department of Energy (DOE), this S&A 2.1 report is titled "Scenarios of Greenhouse Gas Emissions and Atmospheric Concentrations, and Review of Integrated Scenario Development and Application," and provides a new long-term, global reference for greenhouse gas stabilization scenarios and an evaluation of

300

Ion Beam Radiation Effects in Monazite , X. Deschanels2  

E-Print Network [OSTI]

for conditioning minor actinides arising from spent fuel reprocessing. The matrix behavior under irradiation must.27PO4. Irradiation by gold ions results in major changes in the material properties. At a damage level (swelling) in the materials as a result of cumulative irradiation damage arising from alpha decay

Boyer, Edmond

Note: This page contains sample records for the topic "major ion concentrations" 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

UCLA CHEMISTRY MAJOR 2012-2013 CHEMISTRY MAJOR (B.S.): This major is designed primarily for students who are interested in attending  

E-Print Network [OSTI]

UCLA CHEMISTRY MAJOR 2012-2013 CHEMISTRY MAJOR (B.S.): This major is designed primarily for students who are interested in attending graduate school in Chemistry or related areas. It also satisfies this major and others offered in the Department of Chemistry and Biochemistry, consult the Undergraduate

Levine, Alex J.

302

Energy 101: Concentrating Solar Power  

SciTech Connect (OSTI)

From towers to dishes to linear mirrors to troughs, concentrating solar power (CSP) technologies reflect and collect solar heat to generate electricity. A single CSP plant can generate enough power for about 90,000 homes. This video explains what CSP is, how it works, and how systems like parabolic troughs produce renewable power. For more information on the Office of Energy Efficiency and Renewable Energy's CSP research, see the Solar Energy Technology Program's Concentrating Solar Power Web page at http://www1.eere.energy.gov/solar/csp_program.html.

None

2010-01-01T23:59:59.000Z

303

Energy 101: Concentrating Solar Power  

ScienceCinema (OSTI)

From towers to dishes to linear mirrors to troughs, concentrating solar power (CSP) technologies reflect and collect solar heat to generate electricity. A single CSP plant can generate enough power for about 90,000 homes. This video explains what CSP is, how it works, and how systems like parabolic troughs produce renewable power. For more information on the Office of Energy Efficiency and Renewable Energy's CSP research, see the Solar Energy Technology Program's Concentrating Solar Power Web page at http://www1.eere.energy.gov/solar/csp_program.html.

None

2013-05-29T23:59:59.000Z

304

Study of a liquid metal ion source for external ion injection into electron-beam ion source  

E-Print Network [OSTI]

Study of a liquid metal ion source for external ion injection into electron-beam ion source A into electron-beam ion source EBIS . It does not use a buffer gas and therefore it provides only a very small types of low-charged ion sources have been used for external ion injection into BNL electron-beam ion

305

Nonplanar ion-acoustic solitary waves with superthermal electrons in warm plasma  

SciTech Connect (OSTI)

In this paper, we consider an unmagnetized plasma consisting of warm adiabatic ions, superthermal electrons, and thermal positrons. Nonlinear cylindrical and spherical modified Korteweg-de Vries (KdV) equations are derived for ion acoustic waves by using reductive perturbation technique. It is observed that an increasing positron concentration decreases the amplitude of the waves. Furthermore, the effects of the superthermal parameter (k) on the ion acoustic waves are found.

Eslami, Parvin [Department of Physics, Ferdowsi University of Mashhad (Iran, Islamic Republic of); Mottaghizadeh, Marzieh [Department of Physics, Mashhad Branch, Islamic Azad University, Mashhad (Iran, Islamic Republic of); Pakzad, Hamid Reza [Department of Physics, Bojnourd Branch, Islamic Azad University, Bojnourd (Iran, Islamic Republic of)

2011-07-15T23:59:59.000Z

306

Estimation of Heavy Ion Densities From Linearly Polarized EMIC Waves At Earth  

SciTech Connect (OSTI)

Linearly polarized EMIC waves are expected to concentrate at the location where their wave frequency satisfies the ion-ion hybrid (IIH) resonance condition as the result of a mode conversion process. In this letter, we evaluate absorption coefficients at the IIH resonance in the Earth geosynchronous orbit for variable concentrations of helium and azimuthal and field-aligned wave numbers in dipole magnetic field. Although wave absorption occurs for a wide range of heavy ion concentration, it only occurs for a limited range of azimuthal and field-aligned wave numbers such that the IIH resonance frequency is close to, but not exactly the same as the crossover frequency. Our results suggest that, at L = 6.6, linearly polarized EMIC waves can be generated via mode conversion from the compressional waves near the crossover frequency. Consequently, the heavy ion concentration ratio can be estimated from observations of externally generated EMIC waves that have polarization.

Kim, Eun-Hwa; Johnson, Jay R.; Lee, Dong-Hun

2014-02-24T23:59:59.000Z

307

Chemical mapping of DNA and counter-ion content inside phage by energy-filtered TEM  

Science Journals Connector (OSTI)

Double-stranded DNA in many bacterial viruses (phage) is strongly confined, which results in internal genome pressures of tens of atmospheres. This pressure is strongly dependent on local ion concentration and di...

Pernilla Nevsten; Alex Evilevitch; Reine Wallenberg

2012-03-01T23:59:59.000Z

308

Performance Profiles of Major Energy Producers 2001  

Gasoline and Diesel Fuel Update (EIA)

1) 1) Distribution Category UC-950 Performance Profiles of Major Energy Producers 2001 January 2003 Energy Information Administration Office of Energy Markets and End Use U.S. Department of Energy Washington, DC 20585 This report was prepared by the Energy Information Administration, the independent statistical and analytical agency within the U.S. Department of Energy. The information contained herein should be attributed to the Energy Information Administration and should not be construed as advocating or reflecting any policy position of the Department of Energy or any other organization. Contacts This report was prepared in the Office of Energy Markets and End Use of the Energy Information Administration

309

MAJOR BENJAMIN H. SMITH Major Benjamin H. Smith is the Operations Officer of the  

E-Print Network [OSTI]

BENJAMIN H. SMITH Major Benjamin H. Smith is the Operations Officer of the Air Force Reserve Officer Smith is a native of Omaha, Nebraska and entered the Air Force in June 2003. He received his commission

310

Radioactive ion detector  

DOE Patents [OSTI]

Apparatus for detecting the presence, in aqueous media, of substances which emit alpha and/or beta radiation and determining the oxidation state of these radioactive substances, that is, whether they are in cationic or anionic form. In one embodiment, a sensor assembly has two elements, one comprised of an ion-exchange material which binds cations and the other comprised of an ion-exchange material which binds anions. Each ion-exchange element is further comprised of a scintillation plastic and a photocurrent generator. When a radioactive substance to which the sensor is exposed binds to either element and emits alpha or beta particles, photons produced in the scintillation plastic illuminate the photocurrent generator of that element. Sensing apparatus senses generator output and thereby indicates whether cationic species or anionic species or both are present and also provides an indication of species quantity. 2 figs.

Bower, K.E.; Weeks, D.R.

1997-08-12T23:59:59.000Z

311

Radioactive ion detector  

DOE Patents [OSTI]

Apparatus for detecting the presence, in aqueous media, of substances which emit alpha and/or beta radiation and determining the oxidation state of these radioactive substances, that is, whether they are in cationic or anionic form. In one embodiment, a sensor assembly has two elements, one comprised of an ion-exchange material which binds cations and the other comprised of an ion-exchange material which binds anions. Each ion-exchange element is further comprised of a scintillation plastic and a photocurrent generator. When a radioactive substance to which the sensor is exposed binds to either element and emits alpha or beta particles, photons produced in the scintillation plastic illuminate the photocurrent generator of that element. Sensing apparatus senses generator output and thereby indicates whether cationic species or anionic species or both are present and also provides an indication of species quantity.

Bower, Kenneth E. (Los Alamos, NM); Weeks, Donald R. (Saratoga, CA)

1997-01-01T23:59:59.000Z

312

Oxygen ion conducting materials  

DOE Patents [OSTI]

An oxygen ion conducting ceramic oxide that has applications in industry including fuel cells, oxygen pumps, oxygen sensors, and separation membranes. The material is based on the idea that substituting a dopant into the host perovskite lattice of (La,Sr)MnO.sub.3 that prefers a coordination number lower than 6 will induce oxygen ion vacancies to form in the lattice. Because the oxygen ion conductivity of (La,Sr)MnO.sub.3 is low over a very large temperature range, the material exhibits a high overpotential when used. The inclusion of oxygen vacancies into the lattice by doping the material has been found to maintain the desirable properties of (La,Sr)MnO.sub.3, while significantly decreasing the experimentally observed overpotential.

Vaughey, John (Elmhurst, IL); Krumpelt, Michael (Naperville, IL); Wang, Xiaoping (Downers Grove, IL); Carter, J. David (Bolingbrook, IL)

2003-01-01T23:59:59.000Z

313

Concentrated solar energy applications using Fresnel lenses: A review  

Science Journals Connector (OSTI)

Solar energy concentration technology using Fresnel lens is an effective way to make full use of sunlight. This paper makes a review about the recent development of the concentrated solar energy applications using Fresnel lenses. The ongoing research and development involves imaging systems and non-imaging systems. Compared with imaging systems, non-imaging systems have the merits of larger accept angles, higher concentration ratios with less volume and shorter focal length, higher optical efficiency, etc. Concentrated photovoltaics is a major application and the highest solar-to-electric conversion efficiency based on imaging Fresnel lens and non-imaging Fresnel lens are reported as over 30% and 31.51.7%, respectively. Moreover, both kinds of systems are widely used in other fields such as hydrogen generation, photo-bio reactors as well as photochemical reactions, surface modification of metallic materials, solar lighting and solar-pumped laser. During the recent two decades, such applications have been built and tested successfully to validate the practicality of Fresnel lens solar concentration systems. Although the present application scale is small, the ongoing research and development works suggest that Fresnel lens solar concentrators, especially non-imaging Fresnel lenses, will bring a breakthrough of commercial solar energy concentration application technology in the near future. Finally, the advantages and disadvantages of two systems are also summarized.

W.T. Xie; Y.J. Dai; R.Z. Wang; K. Sumathy

2011-01-01T23:59:59.000Z

314

Neotectonics of Panama. I. Major fault systems  

SciTech Connect (OSTI)

The direction and rate of relative plate motion across the Caribbean-Nazca boundary in Panama is poorly known. This lack of understanding can be attributed to diffuse seismicity; lack of well constrained focal mechanisms from critical areas; and dense tropical vegetation. In order to better understand the relation of plate motions to major fault systems in Panama, the authors have integrated geologic, remote sensing, earthquake and UTIG marine seismic reflection data. Three areas of recent faulting can be distinguished in Panama and its shelf areas; ZONE 1 of eastern Panama consists of a 70 km wide zone of 3 discrete left-lateral strike-slip faults (Sanson Hills, Jaque River, Sambu) which strike N40W and can be traced as continuous features for distances of 100-150 km; ZONE 2 in central Panama consists of a diffuse zone of discontinuous normal(.) faults which range in strike from N40E, N70E; ZONE 3 in western Panama consists of a 60 km wide zone of 2 discrete, left-lateral(.) strike-slip faults which strike N60W and can be traced as continuous features for distances of 150 km; ZONE 3 faults appear to be continuous with faults bounding the forearc Teraba Trough of Costa Rica. The relation of faults of ZONE 3 to faults of ZONE 2 and a major fault bounding the southern Panama shelf is unclear.

Corrigan, J.; Mann, P.

1985-01-01T23:59:59.000Z

315

ACCELERATED IMPROVEMENT A CONCENTRATED APPROACH  

E-Print Network [OSTI]

ACCELERATED IMPROVEMENT A CONCENTRATED APPROACH FOR CONTINUOUS IMPROVEMENT #12;Accelerated.quality.wisc.edu O F F I C E O F Q U A L I T Y I M P R O V E M E N T Accelerated Improvement This guide to improving resources. You will find helpful information needed to conduct an Accelerated Improvement project

Shapiro, Vadim

316

Physics and Astronomy Geophysics Concentration  

E-Print Network [OSTI]

Physics and Astronomy Geophysics Concentration Strongly recommended courses Credits Term Dept. to Geophysics 3 PHY 3230 Thermal Physics 3 CHE 1101 Introductory Chemistry - I 3 CHE 1110 Introductory Chemistry Laboratory - I 1 GLY 1101 Intro. to Physical Geology 4 GLY 2250 Evolution of the Earth 4 GLY 4705 Adv

Thaxton, Christopher S.

317

Chemical characterization of hair using ion beams  

E-Print Network [OSTI]

"'" ' '. I ity Countin =ystens X-ray Cour tinE ~ Car!r~a ? ra?. Cour t i!re Cele uiat tons CI AP'I'EB III. CG "rBIi E!D E'. iCI LAB A~iD ATDA IC ACTTVATIGM Taco e I ical Con=ider at ions Bes!!its ar!d Discussions Proton Excitat. 'on Deut =' on B: c...!i th! scalp can be cor = elated, !ith the mineinal concentration . in an ir!di. vi!iual. at s!tr!, r 'on t-'me (li I . In pnacti ce hair has a panther' ad!ants;ie !r. that . It a !ceadilv obtainable b topsy '-!rr!, pie. i'!ao, ha;ac . erizat ion...

Yulo, Ma. Melinda S

2012-06-07T23:59:59.000Z

318

Argonoxygen dc magnetron discharge plasma probed with ion acoustic waves  

SciTech Connect (OSTI)

The precise determination of the relative concentration of negative ions is very important for the optimization of magnetron sputtering processes, especially for those undertaken in a multicomponent background produced by adding electronegative gases, such as oxygen, to the discharge. The temporal behavior of an ion acoustic wave excited from a stainless steel grid inside the plasma chamber is used to determine the relative negative ion concentration in the magnetron discharge plasma. The phase velocity of the ion acoustic wave in the presence of negative ions is found to be faster than in a pure argon plasma, and the phase velocity increases with the oxygen partial pressure. Optical emission spectroscopy further confirms the increase in the oxygen negative ion density, along with a decrease in the argon positive ion density under the same discharge conditions. The relative negative ion concentration values measured by ion acoustic waves are compared with those measured by a single Langmuir probe, and a similarity in the results obtained by both techniques is observed.

Saikia, Partha, E-mail: partha.008@gmail.com; Saikia, Bipul Kumar; Goswami, Kalyan Sindhu [Centre of Plasma Physics, Institute for Plasma Research, Nazirakhat, Sonapur, Kamrup, Assam 782 402 (India); Phukan, Arindam [Madhabdev College, Narayanpur, Lakhimpur, Assam 784164 (India)

2014-05-15T23:59:59.000Z

319

Asymmetric ion trap  

DOE Patents [OSTI]

An ion trap having two end cap electrodes disposed asymmetrically about a center of a ring electrode is disclosed. The inner surface of the end cap electrodes are conformed to an asymmetric pair of equipotential lines of the harmonic formed by the application of voltages to the electrodes. The asymmetry of the end cap electrodes allows ejection of charged species through the closer of the two electrodes which in turn allows for simultaneously detecting anions and cations expelled from the ion trap through the use of two detectors charged with opposite polarity. 4 figs.

Barlow, S.E.; Alexander, M.L.; Follansbee, J.C.

1997-12-02T23:59:59.000Z

320

Hydrogen ion microlithography  

DOE Patents [OSTI]

Disclosed is a hydrogen ion microlithography process for use in microelectronic fabrication and semiconductor device processing. The process comprises the steps of providing a single layer of either an amorphous silicon or hydrogenated amorphous silicon material. A pattern is recorded in a selected layer of amorphous silicon or hydrogenated amorphous silicon materials by preferentially implanting hydrogen ions therein so as to permit the selected layer to serve as a mask-resist wafer suitable for subsequent development and device fabrication. The layer is developed to provide a surface pattern therein adaptable for subsequent use in microelectronic fabrication and semiconductor device processing. 6 figs.

Tsuo, Y.S.; Deb, S.K.

1990-10-02T23:59:59.000Z

Note: This page contains sample records for the topic "major ion concentrations" 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

Asymmetric ion trap  

DOE Patents [OSTI]

An ion trap having two end cap electrodes disposed asymmetrically about a center of a ring electrode. The inner surface of the end cap electrodes are conformed to an asymmetric pair of equipotential lines of the harmonic formed by the application of voltages to the electrodes. The asymmetry of the end cap electrodes allows ejection of charged species through the closer of the two electrodes which in turn allows for simultaneously detecting anions and cations expelled from the ion trap through the use of two detectors charged with opposite polarity.

Barlow, Stephan E. (Richland, WA); Alexander, Michael L. (Richland, WA); Follansbee, James C. (Pasco, WA)

1997-01-01T23:59:59.000Z

322

Method of fabricating optical waveguides by ion implantation doping  

DOE Patents [OSTI]

A method for fabricating high-quality optical waveguides in optical quality oxide crystals by ion implantation doping and controlled epitaxial recrystallization is provided. Masked LiNbO/sub 3/ crystals are implanted with high concentrations of Ti dopant at ion energies of about 360 keV while maintaining the crystal near liquid nitrogen temperature. Ion implantation doping produces an amorphous, Ti-rich nonequilibrium phase in the implanted region. Subsequent thermal annealing in a water-saturated oxygen atmosphere at up to 1000/degree/C produces solid-phase epitaxial regrowth onto the crystalline substrate. A high-quality crystalline layer results which incorporates the Ti into the crystal structure at much higher concentrations than is possible by standard diffusion techniques, and this implanted region has excellent optical waveguiding properties.

Appleton, B.R.; Ashley, P.R.; Buchal, C.J.

1987-03-24T23:59:59.000Z

323

Engineering two-mode interactions in ion traps  

E-Print Network [OSTI]

We describe how two vibrational degrees of freedom of a single trapped ion can be coupled through the action of suitably-chosen laser excitation. We concentrate on a two-dimensional ion trap with dissimilar vibrational frequencies in the x- and y-directions of motion, and derive from first principles a variety of quantized two-mode couplings, concentrating on a linear coupling which takes excitations from one mode to another. We demonstrate how this can result in a state rotation, in which it is possible to transfer the motional state of the ion from say the x-direction to the y-direction without prior knowledge of that motional state.

J. Steinbach; J. Twamley; P. L. Knight

1997-08-04T23:59:59.000Z

324

Parametrically Driven Ion Cyclotron Waves and Intense Ion Heating  

Science Journals Connector (OSTI)

Finite-amplitude plasma waves excited by plates outside a plasma column are shown to decay into other plasma waves and electrostatic ion cyclotron waves, accompanied by ion heating.

T. K. Chu; S. Bernabei; R. W. Motley

1973-07-23T23:59:59.000Z

325

Increases in Plasma Carotenoid Concentrations in Response to a Major Dietary Change in the Women's Healthy Eating and Living Study  

Science Journals Connector (OSTI)

...addition, significant increases in plasma carotenoid...39, 40), the quality rating remains low...strawberries, red wine, vitamin C or spinach...Fruits and vegetables increase plasma carotenoids...Healthcare Research and Quality; 2001. 43 Pomerleau...Interventions designed to increase adult fruit and...

John P. Pierce; Loki Natarajan; Shelly Sun; Wael Al-Delaimy; Shirley W. Flatt; Sheila Kealey; Cheryl L. Rock; Cynthia A. Thomson; Vicky A. Newman; Cheryl Ritenbaugh; Ellen B. Gold; and Bette J. Caan

2006-10-01T23:59:59.000Z

326

Thorium ions transport across Tri-n-butyl phosphate-benzene based supported liquid membranes  

SciTech Connect (OSTI)

Transport of Th(IV) ions across tri-n-butyl phosphate (TBP) benzene based liquid membranes supported in microporous hydrophobic polypropylene film (MHPF) has been studied. Various parameters such as variation of nitric acid concentration in the feed, TBP concentration in the membrane, and temperature on the given metal ions transport have been investigated. The effects of nitric acid and TBP concentrations on the distribution coefficient were also studied, and the data obtained were used to determine the Th ions-TBP complex diffusion coefficient in the membrane. Permeability coefficients of Th(IV) ions were also determined as a function of the TBP and nitric acid concentrations. The optimal conditions for the transport of Th(IV) ions across the membrane are 6 mol{sm_bullet}dm{sup -3} HNO{sub 3} concentration, 2.188 mol {center_dot} dm{sup -3} TBP concentration, and 25{degrees}C. The stoichiometry of the chemical species involved in chemical reaction during the transport of Th(IV) ions has also been studied.

Rasul, G.; Chaudry, M.A. [Pakistan Institute of Nuclear Chemistry, Islamabad (Pakistan); Afzal, M. [Quaid-I-Azam Univ., Islamabad (Pakistan)

1995-12-01T23:59:59.000Z

327

Performance profiles of major energy producers 1995, January 1997  

SciTech Connect (OSTI)

This publication examines developments in the operations of the major U.S. energy-producing companies on a corporate level, by major line of business, by major function within each line of business, and by geographic area.

NONE

1997-02-01T23:59:59.000Z

328

Silica-polyamine composite materials for heavy metal ion removal, recovery, and recycling. 2. Metal ion separations from mine wastewater and soft metal ion extraction efficiency  

SciTech Connect (OSTI)

Silica-polyamine composites have been synthesized which have metal ion capacities as high as 0.84 mmol/g for copper ions removed from aqueous solutions. In previous reports it has been demonstrated that these materials survive more than 3,000 cycles of metal ion extraction, elution, and regeneration with almost no loss of capacity (less than 10%). This paper describes two modified silica-polyamine composite materials and reveals the results of tests designed to determine the effectiveness of these materials for extracting and separating metal ions from actual mining wastewater samples. Using these materials, the concentration of copper, aluminum, and zinc in Berkeley Pit mine wastewater is reduced to below allowable discharge limits. The recovered copper and zinc solutions were greater than 90% pure, and metal ion concentration factors of over 20 for copper were realized. Further, the ability of one of these materials to decrease low levels of the soft metals cadmium, mercury, and lead from National Sanitation Foundation recommended challenge levels to below Environmental Protection Agency allowable limits is also reported.

Fischer, R.J.; Pang, D.; Beatty, S.T.; Rosenberg, E.

1999-12-01T23:59:59.000Z

329

Performance Profiles of Major Energy Producers 1994  

Gasoline and Diesel Fuel Update (EIA)

4) 4) Distribution Category UC-950 Performance Profiles of Major Energy Producers 1994 January 1996 Energy Information Administration Office of Energy Markets and End Use U.S. Department of Energy Washington, DC 20585 This report was prepared by the Energy Information Administration, the independent statistical and analytical agency within the Department of Energy. The information contained herein should not be construed as advocating or reflecting any policy position of the Department of Energy or any other organization. Contacts This report was prepared in the Office of Energy Markets and End Use of the Energy Information Administration, U.S. Department of Energy, under the general direction of W. Calvin Kilgore. The project was directed by Mark E. Rodekohr, Director of the Energy Markets and Contingency Information Division (202) 586-1441, and Mary E. Northup, Chief of

330

Modelling Mixed Bed Ion Exchange Kinetics for Removal of Trace Levels of Divalent Cations in Ultrapure Water  

SciTech Connect (OSTI)

Ion exchanger resin fluid film mass transfer coefficients and the ionic diffusivities from which they are derived are often measured by use of ion exchange resin columns. Such tests, usually run dynamically using short resin beds, are often performed using relatively high (ppm) concentrations of ions to accurately measure output concentrations as a function of flow rate. The testing described herein was performed to determine fluid film ionic diffusivities for cationic concentrations typical of ultrapure water ({le}ppb levels) containing ppm levels of ammonia. Effective ionic diffusivities at these low ionic concentrations and high pHs were needed to complete a computer model (SIMIX) to be used in ion exchange simulations. SIMIX is a generalized multicomponent ion exchange model designed to simulate the removal of divalent cations from ultrapure water.

B. Widman

2003-01-01T23:59:59.000Z

331

Uncertainty of ConcentrationTerrestrial Carbon Feedback in Earth System Models  

Science Journals Connector (OSTI)

Carbon uptake by land and ocean as a biogeochemical response to increasing atmospheric CO2 concentration is called concentrationcarbon feedback and is one of the carbon cycle feedbacks of the global climate. This feedback can have a major impact ...

Tomohiro Hajima; Kaoru Tachiiri; Akihiko Ito; Michio Kawamiya

2014-05-01T23:59:59.000Z

332

High Mercury Concentrations Reflect Trophic Ecology of Three Deep-Water Chondrichthyans  

E-Print Network [OSTI]

High Mercury Concentrations Reflect Trophic Ecology of Three Deep-Water Chondrichthyans Michael C concentrations were explored for three deep-water chondrichthyans (Etmopterus princeps, Cen- troscymnus position in the trophic web (as indicated by differences in d15 N). Mercury is a major contaminant

Newman, Michael C.

333

Focused Ion Beam (FIB):  

Science Journals Connector (OSTI)

...al., 1990; Basile et al., 1992; Overwijk et al., 1993). Focused gallium ion...detailed descriptions are given elsewhere (Overwijk et al., 1993; Heaney et al., 2001...Kluwer Academic Publishers, 316 pp. Overwijk, M.H.E., van den Heuvel, F...

Richard WIRTH

334

Pulsed ion beam source  

DOE Patents [OSTI]

An improved pulsed ion beam source is disclosed having a new biasing circuit for the fast magnetic field. This circuit provides for an initial negative bias for the field created by the fast coils in the ion beam source which pre-ionize the gas in the source, ionize the gas and deliver the gas to the proper position in the accelerating gap between the anode and cathode assemblies in the ion beam source. The initial negative bias improves the interaction between the location of the nulls in the composite magnetic field in the ion beam source and the position of the gas for pre-ionization and ionization into the plasma as well as final positioning of the plasma in the accelerating gap. Improvements to the construction of the flux excluders in the anode assembly are also accomplished by fabricating them as layered structures with a high melting point, low conductivity material on the outsides with a high conductivity material in the center. 12 figs.

Greenly, J.B.

1997-08-12T23:59:59.000Z

335

Photo ion spectrometer  

DOE Patents [OSTI]

A method and apparatus for extracting for quantitative analysis ions of selected atomic components of a sample. A lens system is configured to provide a slowly diminishing field region for a volume containing the selected atomic components, enabling accurate energy analysis of ions generated in the slowly diminishing field region. The lens system also enables focusing on a sample of a charged particle beam, such as an ion beam, along a path length perpendicular to the sample and extraction of the charged particles along a path length also perpendicular to the sample. Improvement of signal to noise ratio is achieved by laser excitation of ions to selected autoionization states before carrying out quantitative analysis. Accurate energy analysis of energetic charged particles is assured by using a preselected resistive thick film configuration disposed on an insulator substrate for generating predetermined electric field boundary conditions to achieve for analysis the required electric field potential. The spectrometer also is applicable in the fields of SIMS, ISS and electron spectroscopy.

Gruen, Dieter M. (Downers Grove, IL); Young, Charles E. (Westmont, IL); Pellin, Michael J. (Naperville, IL)

1989-01-01T23:59:59.000Z

336

Photo ion spectrometer  

DOE Patents [OSTI]

A method and apparatus are described for extracting for quantitative analysis ions of selected atomic components of a sample. A lens system is configured to provide a slowly diminishing field region for a volume containing the selected atomic components, enabling accurate energy analysis of ions generated in the slowly diminishing field region. The lens system also enables focusing on a sample of a charged particle beam, such as an ion beam, along a path length perpendicular to the sample and extraction of the charged particles along a path length also perpendicular to the sample. Improvement of signal to noise ratio is achieved by laser excitation of ions to selected auto-ionization states before carrying out quantitative analysis. Accurate energy analysis of energetic charged particles is assured by using a preselected resistive thick film configuration disposed on an insulator substrate for generating predetermined electric field boundary conditions to achieve for analysis the required electric field potential. The spectrometer also is applicable in the fields of SIMS, ISS and electron spectroscopy. 8 figs.

Gruen, D.M.; Young, C.E.; Pellin, M.J.

1989-08-08T23:59:59.000Z

337

Cylindrical acoustic levitator/concentrator  

DOE Patents [OSTI]

A low-power, inexpensive acoustic apparatus for levitation and/or concentration of aerosols and small liquid/solid samples having particulates up to several millimeters in diameter in air or other fluids is described. It is constructed from a commercially available, hollow cylindrical piezoelectric crystal which has been modified to tune the resonance frequency of the breathing mode resonance of the crystal to that of the interior cavity of the cylinder. When the resonance frequency of the interior cylindrical cavity is matched to the breathing mode resonance of the cylindrical piezoelectric transducer, the acoustic efficiency for establishing a standing wave pattern in the cavity is high. The cylinder does not require accurate alignment of a resonant cavity. Water droplets having diameters greater than 1 mm have been levitated against the force of gravity using; less than 1 W of input electrical power. Concentration of aerosol particles in air is also demonstrated.

Kaduchak, Gregory (Los Alamos, NM); Sinha, Dipen N. (Los Alamos, NM)

2002-01-01T23:59:59.000Z

338

Development of concentrator solar cells  

SciTech Connect (OSTI)

A limited pilot production run on PESC silicon solar cells for use at high concentrations (200 to 400 suns) is summarized. The front contact design of the cells was modified for operation without prismatic covers. The original objective of the contract was to systematically complete a process consolidation phase, in which all the, process improvements developed during the contract would be combined in a pilot production run. This pilot run was going to provide, a basis for estimating cell costs when produced at high throughput. Because of DOE funding limitations, the Photovoltaic Concentrator Initiative is on hold, and Applied Solar`s contract was operated at a low level of effort for most of 1993. The results obtained from the reduced scope pilot run showed the effects of discontinuous process optimization and characterization. However, the run provided valuable insight into the technical areas that can be optimized to achieve the original goals of the contract.

Not Available

1994-08-01T23:59:59.000Z

339

Concentration polarization in gas permeation  

SciTech Connect (OSTI)

It was verified that the selectivity of very thin (1 {mu}m thick) PDMS (polydimethylsiloxane) composite membranes for gaseous binary mixtures, like nitrogen and a hydrocarbon (HC), is as much as five times smaller than for the same mixture using a thick membrane (15 {mu}m-thick). This phenomenon is due to the build-up of the less permeable gas on the retentate side over the membrane and is known as the concentration polarization effect. In this paper we present a model for the gas concentration polarization effect based in the film theory and compare with the experimental results for the nitrogen-pentane separation using a PDMS membrane. 8 refs., 6 figs.

Mendes, A.M.M. [Univ. of Porto (Portugal); Alpers, A.; Peinemann, K.V.; Ohlrogge, K. [GKSS-Research Centre, Geesthacht (Germany)

1996-12-31T23:59:59.000Z

340

Obama Administration Announces Major Steps Forward to Advance...  

Office of Environmental Management (EM)

Major Steps Forward to Advance Energy Efficiency Efforts, Improve Access to Low-Cost Financing for States and Local Communities Obama Administration Announces Major Steps...

Note: This page contains sample records for the topic "major ion concentrations" 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

Major DOE Biofuels Project Locations | Department of Energy  

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

Major DOE Biofuels Project Locations More Documents & Publications Major DOE Biofuels Project Locations Slide 1 The Current State of Technology for Cellulosic Ethanol...

342

Energy Department Report Finds Major Potential to Increase Clean...  

Energy Savers [EERE]

Department Report Finds Major Potential to Increase Clean Hydroelectric Power Energy Department Report Finds Major Potential to Increase Clean Hydroelectric Power April 17, 2012 -...

343

TOMORROW: Secretaries Chu and Salazar to Make Major Renewable...  

Office of Environmental Management (EM)

Secretaries Chu and Salazar to Make Major Renewable Energy Announcement TOMORROW: Secretaries Chu and Salazar to Make Major Renewable Energy Announcement December 15, 2010 -...

344

Energy Department Awards First Major Task Order Under Streamlined...  

Energy Savers [EERE]

First Major Task Order Under Streamlined Contracting System Energy Department Awards First Major Task Order Under Streamlined Contracting System October 17, 2005 - 11:59am Addthis...

345

Termination of a Major Normal Fault | Open Energy Information  

Open Energy Info (EERE)

Termination of a Major Normal Fault: Major normal fault terminations or tip-lines sometimes split into multiple closely-spaced faults that result in increased...

346

Department of Energy Other Major Laboratories and Facilities  

Office of Scientific and Technical Information (OSTI)

Energy Other Major Laboratories and Facilities DOE National Laboratories A - L DOE National Laboratories N - T Other Major Laboratories and Facilities In addition to the seventeen...

347

Guide to Integrating Renewable Energy in Federal Construction: Major  

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

Major Renovations to someone by E-mail Major Renovations to someone by E-mail Share Guide to Integrating Renewable Energy in Federal Construction: Major Renovations on Facebook Tweet about Guide to Integrating Renewable Energy in Federal Construction: Major Renovations on Twitter Bookmark Guide to Integrating Renewable Energy in Federal Construction: Major Renovations on Google Bookmark Guide to Integrating Renewable Energy in Federal Construction: Major Renovations on Delicious Rank Guide to Integrating Renewable Energy in Federal Construction: Major Renovations on Digg Find More places to share Guide to Integrating Renewable Energy in Federal Construction: Major Renovations on AddThis.com... Home Introduction Assessing Renewable Energy Options Planning, Programming, & Budgeting Project Funding

348

Oblique propagation of ion acoustic soliton-cnoidal waves in a magnetized electron-positron-ion plasma with superthermal electrons  

SciTech Connect (OSTI)

The oblique propagation of ion-acoustic soliton-cnoidal waves in a magnetized electron-positron-ion plasma with superthermal electrons is studied. Linear dispersion relations of the fast and slow ion-acoustic modes are discussed under the weak and strong magnetic field situations. By means of the reductive perturbation approach, Korteweg-de Vries equations governing ion-acoustic waves of fast and slow modes are derived, respectively. Explicit interacting soliton-cnoidal wave solutions are obtained by the generalized truncated Painlev expansion. It is found that every peak of a cnoidal wave elastically interacts with a usual soliton except for some phase shifts. The influence of the electron superthermality, positron concentration, and magnetic field obliqueness on the soliton-cnoidal wave are investigated in detail.

Wang, Jian-Yong; Cheng, Xue-Ping; Tang, Xiao-Yan, E-mail: xytang@sjtu.edu.cn [Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China)] [Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China); Yang, Jian-Rong [Department of Physics and Electronics, Shangrao Normal University, Jiangxi, Shangrao 334001 (China)] [Department of Physics and Electronics, Shangrao Normal University, Jiangxi, Shangrao 334001 (China); Ren, Bo [Institute of Nonlinear Science, Shaoxing University, Shaoxing 312000 (China)] [Institute of Nonlinear Science, Shaoxing University, Shaoxing 312000 (China)

2014-03-15T23:59:59.000Z

349

Major Oil Plays In Utah And Vicinity  

SciTech Connect (OSTI)

Utah oil fields have produced over 1.33 billion barrels (211 million m{sup 3}) of oil and hold 256 million barrels (40.7 million m{sup 3}) of proved reserves. The 13.7 million barrels (2.2 million m3) of production in 2002 was the lowest level in over 40 years and continued the steady decline that began in the mid-1980s. However, in late 2005 oil production increased, due, in part, to the discovery of Covenant field in the central Utah Navajo Sandstone thrust belt ('Hingeline') play, and to increased development drilling in the central Uinta Basin, reversing the decline that began in the mid-1980s. The Utah Geological Survey believes providing play portfolios for the major oil-producing provinces (Paradox Basin, Uinta Basin, and thrust belt) in Utah and adjacent areas in Colorado and Wyoming can continue this new upward production trend. Oil plays are geographic areas with petroleum potential caused by favorable combinations of source rock, migration paths, reservoir rock characteristics, and other factors. The play portfolios include descriptions and maps of the major oil plays by reservoir; production and reservoir data; case-study field evaluations; locations of major oil pipelines; identification and discussion of land-use constraints; descriptions of reservoir outcrop analogs; and summaries of the state-of-the-art drilling, completion, and secondary/tertiary recovery techniques for each play. The most prolific oil reservoir in the Utah/Wyoming thrust belt province is the eolian, Jurassic Nugget Sandstone, having produced over 288 million barrels (46 million m{sup 3}) of oil and 5.1 trillion cubic feet (145 billion m{sup 3}) of gas. Traps form on discrete subsidiary closures along major ramp anticlines where the depositionally heterogeneous Nugget is also extensively fractured. Hydrocarbons in Nugget reservoirs were generated from subthrust Cretaceous source rocks. The seals for the producing horizons are overlying argillaceous and gypsiferous beds in the Jurassic Twin Creek Limestone, or a low-permeability zone at the top of the Nugget. The Nugget Sandstone thrust belt play is divided into three subplays: (1) Absaroka thrust - Mesozoic-cored shallow structures, (2) Absaroka thrust - Mesozoic-cored deep structures, and (3) Absaroka thrust - Paleozoic-cored shallow structures. Both of the Mesozoic-cored structures subplays represent a linear, hanging wall, ramp anticline parallel to the leading edge of the Absaroka thrust. Fields in the shallow Mesozoic subplay produce crude oil and associated gas; fields in the deep subplay produce retrograde condensate. The Paleozoic-cored structures subplay is located immediately west of the Mesozoic-cored structures subplays. It represents a very continuous and linear, hanging wall, ramp anticline where the Nugget is truncated against a thrust splay. Fields in this subplay produce nonassociated gas and condensate. Traps in these subplays consist of long, narrow, doubly plunging anticlines. Prospective drilling targets are delineated using high-quality, two-dimensional and three-dimensional seismic data, forward modeling/visualization tools, and other state-of-the-art techniques. Future Nugget Sandstone exploration could focus on more structurally complex and subtle, thrust-related traps. Nugget structures may be present beneath the leading edge of the Hogsback thrust and North Flank fault of the Uinta uplift. The Jurassic Twin Creek Limestone play in the Utah/Wyoming thrust belt province has produced over 15 million barrels (2.4 million m{sup 3}) of oil and 93 billion cubic feet (2.6 billion m{sup 3}) of gas. Traps form on discrete subsidiary closures along major ramp anticlines where the low-porosity Twin Creek is extensively fractured. Hydrocarbons in Twin Creek reservoirs were generated from subthrust Cretaceous source rocks. The seals for the producing horizons are overlying argillaceous and clastic beds, and non-fractured units within the Twin Creek. The Twin Creek Limestone thrust belt play is divided into two subplays: (1) Absaroka thrust-Mesozoic-cored structures and (2) A

Thomas Chidsey

2007-12-31T23:59:59.000Z

350

Ion Exchange Media for Reduction of Liquid Radwaste in Commercial Power Plants  

SciTech Connect (OSTI)

Ion exchange resins currently make up as much as one-half of all radioactive waste generated by commercial nuclear power plants. A major challenge is reduction of the quantity of ion exchange media requiring disposal. Although the amount of spent ion exchange resins disposed has decreased year after year, a new urgency has arisen with the pending closure of a major disposal site in 2008. This paper explores whether ion exchange resins also can be used to potentially reduce radioactive liquid waste volumes and / or limit them to Class A wastes only. Source term reduction and minimization of manpower exposure to radioactivity are other important goals. Specialty ion exchange products may help to achieve source term reduction of certain radionuclides. Some established operations, data, and process concepts are presented to address these critical issues encountered in liquid radwaste management. (authors)

Yarnell, P.A. [Graver Technologies, LLC, Glasgow, DE (United Kingdom); Tavares, A. [Graver Technologies, LLC, Newark, NJ (United States)

2008-07-01T23:59:59.000Z

351

Ion Pre-acceleration in Fully Self-consistent Particle-in-cell Simulations of Supercritical Perpendicular Reforming Shocks in Multiple Ion Species Plasmas  

Science Journals Connector (OSTI)

Supernova remnant and heliopause termination shock plasmas may contain significant populations of minority heavy ions, with relative number densities n ?/ni up to 50%. Preliminary kinetic simulations of collisionless shocks in these environments showed that the reformation cycle and acceleration mechanisms at quasi-perpendicular shocks can depend on the value of n ?/ni . Shock reformation unfolds on ion spatio-temporal scales, requiring fully kinetic simulations of particle dynamics, together with the self-consistent electric and magnetic fields. This paper presents the first set of particle-in-cell simulations for two ion species, protons (np ) and ?-particles (n ?), with differing mass and charge-to-mass ratios, that spans the entire range of n ?/ni from 0% to 100%. The interplay between the differing gyro length scales and timescales of the ion species is crucial to the time-evolving phenomenology of the shocks, the downstream turbulence, and the particle acceleration at different n ?/ni . We show how the overall energization changes with n ?/ni , and relate this to the processes individual ions undergo in the shock region and in the downstream turbulence, and to the power spectra of magnetic field fluctuations. The crossover between shocks dominated by the respective ion species happens when n ?/ni = 25%, and minority ion energization is strongest in this regime. Energization of the majority ion species scales with injection energy. The power spectrum of the downstream turbulence includes peaks at sequential ion cyclotron harmonics, suggestive of ion ring-beam collective instability.

V. L. Rekaa; S. C. Chapman; R. O. Dendy

2014-01-01T23:59:59.000Z

352

Experiential Component Approval Form Concentration in Nanotechnology  

E-Print Network [OSTI]

Experiential Component Approval Form Concentration in Nanotechnology Return completed form to ENG Plan to complete the experiential component as a requirement for the concentration in Nanotechnology to complete the experiential component for the Nanotechnology Concentration by: Research Experience in Lab

Goldberg, Bennett

353

A microfabricated dielectrophoretic micro-organism concentrator  

E-Print Network [OSTI]

This project focuses on the development of a micro-organism concentrator. Pathogen detection, particularly MEMS based detection, is often limited by sample concentration. The proposed concentrator will interface with a ...

Muller, Rikky, 1980-

2004-01-01T23:59:59.000Z

354

Concentrating Solar Power Dish/Engine System Basics | Department of Energy  

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

Concentrating Solar Power Dish/Engine System Basics Concentrating Solar Power Dish/Engine System Basics Concentrating Solar Power Dish/Engine System Basics August 20, 2013 - 5:02pm Addthis The dish/engine system is a concentrating solar power (CSP) technology that produces relatively small amounts of electricity compared to other CSP technologies-typically in the range of 3 to 25 kilowatts. Dish/engine systems use a parabolic dish of mirrors to direct and concentrate sunlight onto a central engine that produces electricity. The two major parts of the system are the solar concentrator and the power conversion unit. Solar Concentrator Illustration of a dish/engine power plant. Sunlight is shown reflecting off the large dish-shaped concentrator and onto the mounted power conversion unit to generate electricity that is fed into the power grid. The system looks similar to a large satellite television receiver dish.

355

Cryogenic Ion Chemistry and Spectroscopy  

Science Journals Connector (OSTI)

Cryogenic Ion Chemistry and Spectroscopy ... His research focuses on developing and applying cryogenic ion processing for the characterization of hydrogen bonding motifs in macromolecules and activated organometallic catalysts. ... In this Account, we discuss how cryogenic cooling, mass selection, and reactive processing together provide a powerful way to characterize ion structures as well as rationally synthesize labile reaction intermediates. ...

Arron B. Wolk; Christopher M. Leavitt; Etienne Garand; Mark A. Johnson

2013-08-23T23:59:59.000Z

356

Cahn-Hilliard Reaction Model for Isotropic Li-ion Battery Particles Yi Zeng1, Martin Z. Bazant1,2  

E-Print Network [OSTI]

Cahn-Hilliard Reaction Model for Isotropic Li-ion Battery Particles Yi Zeng1, Martin Z. Bazant1,2 1 particle. This general approach extends previous Li-ion battery models, which either neglect phase theory for Li-ion batteries [13, 18] with Butler-Volmer kinetics and concentration depen- dent

Bazant, Martin Z.

357

Growth History Of Kilauea Inferred From Volatile Concentrations In  

Open Energy Info (EERE)

History Of Kilauea Inferred From Volatile Concentrations In History Of Kilauea Inferred From Volatile Concentrations In Submarine-Collected Basalts Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Growth History Of Kilauea Inferred From Volatile Concentrations In Submarine-Collected Basalts Details Activities (4) Areas (2) Regions (0) Abstract: Major-element and volatile (H2O, CO2, S) compositions of glasses from the submarine flanks of Kilauea Volcano record its growth from pre-shield into tholeiite shield-stage. Pillow lavas of mildly alkalic basalt at 2600-1900 mbsl on the upper slope of the south flank are an intermediate link between deeper alkalic volcaniclastics and the modern tholeiite shield. Lava clast glasses from the west flank of Papau Seamount are subaerial Mauna Loa-like tholeiite and mark the contact between the two

358

CHANGE OF MAJOR/ADVISOR Instructions: Complete this form to change your major and/or faculty advisor. If you are changing both your major AND your  

E-Print Network [OSTI]

CHANGE OF MAJOR/ADVISOR Instructions: Complete this form to change your major and/or faculty advisor. If you are changing both your major AND your faculty advisor, complete Sections I, II and III. If you are only changing your faculty advisor, complete Sections I and III. Please note: Your faculty

Goldberg, Bennett

359

Integrated field emission array for ion desorption  

DOE Patents [OSTI]

An integrated field emission array for ion desorption includes an electrically conductive substrate; a dielectric layer lying over the electrically conductive substrate comprising a plurality of laterally separated cavities extending through the dielectric layer; a like plurality of conically-shaped emitter tips on posts, each emitter tip/post disposed concentrically within a laterally separated cavity and electrically contacting the substrate; and a gate electrode structure lying over the dielectric layer, including a like plurality of circular gate apertures, each gate aperture disposed concentrically above an emitter tip/post to provide a like plurality of annular gate electrodes and wherein the lower edge of each annular gate electrode proximate the like emitter tip/post is rounded. Also disclosed herein are methods for fabricating an integrated field emission array.

Resnick, Paul J; Hertz, Kristin L; Holland, Christopher; Chichester, David; Schwoebel, Paul

2013-09-17T23:59:59.000Z

360

Energy efficiency: major issues and policy recommendations  

SciTech Connect (OSTI)

The Advisory Committee on Energy Efficiency has investigated strategies for improving energy efficiency in all sectors of the economy - industrial, agricultural, residential, and commercial, and transportation - and has considered the contributions of local government and utility companies, as well as the state, in encouraging its efficient use. The state may exercise several policy options to encourage energy efficiency: information transfer, financial aids and incentives, and building conservation standards. The Committee believes that the major objectives for state legislative and administrative actions should be to facilitate the efforts of consumers to improve energy efficiency and to set an example of efficiency in its own buildings and operations. The state can realize these objectives with programs that: provide accurate and unbiased information on energy efficiency technologies and practices; provide consumers with information to evaluate products and vendor claims of efficiency and thereby to protect against consumer fraud; identify and remove institutional and legislative barriers to energy efficient practices; provide economic incentives to help meet the capital requirements to invest in energy efficiency technologies; and advance research, development, and demonstration of new technologies.

Not Available

1981-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "major ion concentrations" 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

Performance modeling and cell design for high concentration methanol fuel cells  

E-Print Network [OSTI]

) it reduces the fuel efficiency (methanol is reacted without producing electrical current). We canChapter 50 Performance modeling and cell design for high concentration methanol fuel cells C. E The direct methanol fuel cell (DMFC) has become a lead- ing contender to replace the lithium-ion (Li

362

Sandia National Laboratories: multiscale concentrated solar power  

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

concentrated solar power Solar Energy Research Institute for India and the United States Kick-Off On November 27, 2012, in Concentrating Solar Power, Energy, National Solar Thermal...

363

Sandia National Laboratories: Concentrating Solar Power  

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

Concentrating Solar Power Solar Energy On February 3, 2011, in Solar Programs Photovoltaics Concentrating Solar Power Sunshine to Petrol Solar Publications Recent Solar Highlights...

364

Arontis Solar Concentrator AB | Open Energy Information  

Open Energy Info (EERE)

Harnosand, Sweden Zip: SE-871 31 Product: Developer of a medium-concentrating, one axis sun tracking PV system that also produces hot water. References: Arontis Solar Concentrator...

365

Sandia National Laboratories: Concentrating Solar Power  

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

Concentrating Solar Power (CSP) On April 13, 2011, in CSP R&D at Sandia Testing Facilities Software & Tools Resources Contacts News Concentrating Solar Power ANNOUNCEMENT: Sandia's...

366

Varian investment pays off in major NMR advances  

Science Journals Connector (OSTI)

Varian investment pays off in major NMR advances ... Varian's investment in NMR had slowed accordingly. ...

RUBY M. BAUM

1985-11-04T23:59:59.000Z

367

Perspective on the Role of Negative Ions and Ion-Ion Plasmas in Heavy Ion Fusion Science, Magnetic Fusion Energy, and Related Fields  

E-Print Network [OSTI]

in Heavy Ion Fusion Science, Magnetic Fusion Energy, andin Heavy Ion Fusion Science, Magnetic Fusion Energy, and

Kwan, J.W.

2008-01-01T23:59:59.000Z

368

Relativistic Heavy Ion Collider  

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

Relativistic Heavy Ion Collider Relativistic Heavy Ion Collider managed for the U.S. Department of Energy by Brookhaven Science Associates, founded by Stony Brook University and Battelle. managed for the U.S. Department of Energy by Brookhaven Science Associates, a company founded by Stony Brook University and Battelle 07/07 Brookhaven National Laboratory Funded by the U.S. Department of Energy, Brookhaven National Laboratory is a multipurpose research institution located on a 5,300-acre site on Long Island, New York. Six Nobel Prize-winning discoveries have been made at Brookhaven Lab. The Laboratory operates large-scale scientific facilities and performs research in physics, chemistry, biology, medicine, applied science, and

369

Characterizing Heavy Ion  

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

Heavy Ion Heavy Ion Reactions in the 1980's Is there Treasure at the end of the Rainbow? & What happens and how do different modes compete? John Schiffer One of the three research areas for ATLAS, as stated in a 1984 document to Congress: Are there some new marvelous symmetries, hidden in resonances in heavier nuclei, beyond 12 C+ 12 C and its immediate vicinity? (s.c. linac work, pre-ATLAS) Other attempts to chase the rainbow 180 o elastic scattering of 12 C on 40 Ca shows structure Fusion of 16 O on 40 Ca does not. In the end, it seemed that these structures were sometimes present in alpha-particle nuclei, but almost never in others. Some optimists, continued the pursuit. We also looked at the total fusion cross section in systems that showed resonances in scattering.

370

InstructIons  

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

InstructIons InstructIons for AccessIng fedconnect PostIngs The registration process requires multiple steps prior to submission, so please plan in advance as late applications will not be accepted. Note that for some applications, a Letter of Intent must be filed prior to the final deadline. To access the complete postings, follow the below steps: 1. Go to https://www.FedConnect.net/ 2. Click on "Search Public Opportunities" 3. Select "Reference Number" in the Search Criteria drop down box and then enter the Reference Number of the funding opportunity you are interested in (DE-FOA-XXXXXXX), followed by clicking the "Search" button 4. Click on the appropriate link after search results are displayed

371

SunShot Initiative: Concentrating Solar Power  

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

Concentrating Solar Power to Concentrating Solar Power to someone by E-mail Share SunShot Initiative: Concentrating Solar Power on Facebook Tweet about SunShot Initiative: Concentrating Solar Power on Twitter Bookmark SunShot Initiative: Concentrating Solar Power on Google Bookmark SunShot Initiative: Concentrating Solar Power on Delicious Rank SunShot Initiative: Concentrating Solar Power on Digg Find More places to share SunShot Initiative: Concentrating Solar Power on AddThis.com... Concentrating Solar Power Systems Components Competitive Awards Staff Photovoltaics Systems Integration Balance of Systems Concentrating Solar Power SunShot CSP Team Learn more about the SunShot concentrating solar power program staff by visiting the team's profile pages. Argonne National Laboratory Argonne National Laboratory

372

Ion-beam superpinch  

Science Journals Connector (OSTI)

Intense nonrelativistic light-ion beams generated in magnetically insulated diodes can reach total beam currents large enough to confine charged fusion products within pinch channels which are formed by these beams if they are projected onto thermonuclear material. Furthermore, since the required beam currents are still below the critical Alfvn current, these pinch channels are magnetohydrodynamically stable. However, because the time these beams last is very short and of the order of 10 nsec, the thermonuclear target must have a density at least as large as solid-state density to satisfy the Lawson criterion. This large target density makes it necessary that the beam be focused down to a radius less than ? 10-2 cm, to balance the plasma pressure against the magnetic pressure. To make this focusing possible a new kind of a low-emittance intense ion source is proposed. It consists of pointlike pulsed dense plasma positioned in the field-free space behind a meshlike anode. The focusing itself can be done in three steps, first by sufficiently good ion optics, second by wall focusing, and third by radiation cooling. This inertial-confinement fusion concept avoids the problems of reaching this goal through highdensity target compression by ablative implosion.

F. Winterberg

1981-10-01T23:59:59.000Z

373

Negative ion source  

DOE Patents [OSTI]

A method and apparatus for providing a negative ion source accelerates electrons away from a hot filament electron emitter into a region of crossed electric and magnetic fields arranged in a magnetron configuration. During a portion of the resulting cycloidal path, the electron velocity is reduced below its initial value. The electron accelerates as it leaves the surface at a rate of only slightly less than if there were no magnetic field, thereby preventing a charge buildup at the surface of the emitter. As the electron traverses the cycloid, it is decelerated during the second, third, and fourth quadrants, then reeccelerated as it approaches the end of the fourth quadrant to regain its original velocity. The minimum velocity occurs during the fourth quadrant, and corresponds to an electron temperature of 200.degree. to 500.degree. for the electric and magnetic fields commonly encountered in the ion sources of magnetic sector mass spectrometers. An ion source using the above-described thermalized electrons is also disclosed.

Delmore, James E. (Idaho Falls, ID)

1987-01-01T23:59:59.000Z

374

Resonance Ionization Laser Ion Sources  

E-Print Network [OSTI]

The application of the technique of laser resonance ionization to the production of singly charged ions at radioactive ion beam facilities is discussed. The ability to combine high efficiency and element selectivity makes a resonance ionization laser ion source (RILIS) an important component of many radioactive ion beam facilities. At CERN, for example, the RILIS is the most commonly used ion source of the ISOLDE facility, with a yearly operating time of up to 3000 hours. For some isotopes the RILIS can also be used as a fast and sensitive laser spectroscopy tool, provided that the spectral resolution is sufficiently high to reveal the influence of nuclear structure on the atomic spectra. This enables the study of nuclear properties of isotopes with production rates even lower than one ion per second and, in some cases, enables isomer selective ionization. The solutions available for the implementation of resonance laser ionization at radioactive ion beam facilities are summarized. Aspects such as the laser r...

Marsh, B

2013-01-01T23:59:59.000Z

375

General Education and Major Coursework: Credit Hours General Education and Major Coursework: Credit Hours ENGN 110 2 ECE 111 2  

E-Print Network [OSTI]

: 128 ** Meets philosophy and ethics general education requirement. Electrical engineering majors mustGeneral Education and Major Coursework: Credit Hours General Education and Major Coursework: Credit (C or better required) 3 PHYS 231N 4 COMM 101R 3 General Education and Major Coursework: Credit Hours

376

Positions in the GluN2C-Containing NMDAR Regulate Alcohol Sensitivity and Ion Channel Gating.  

E-Print Network [OSTI]

??The N-methyl-D-aspartate (NMDA) receptor, a subtype of glutamate-gated ion channel, has been shown to be a major target of ethanol in the central nervous system (more)

Wu, Man

2014-01-01T23:59:59.000Z

377

Ion implantation of boron in germanium  

SciTech Connect (OSTI)

Ion implantation of /sup 11/B/sup +/ into room temperature Ge samples leads to a p-type layer prior to any post implant annealing steps. Variable temperature Hall measurements and deep level transient spectroscopy experiments indicate that room temperature implantation of /sup 11/B/sup +/ into Ge results in 100% of the boron ions being electrically active as shallow acceptor, over the entire dose range (5 x 10/sup 11//cm/sup 2/ to 1 x 10/sup 14//cm/sup 2/) and energy range (25 keV to 100 keV) investigated, without any post implant annealing. The concentration of damage related acceptor centers is only 10% of the boron related, shallow acceptor center concentration for low energy implants (25 keV), but becomes dominant at high energies (100 keV) and low doses (<1 x 10/sup 12//cm/sup 2/). Three damage related hole traps are produced by ion implantation of /sup 11/B/sup +/. Two of these hole traps have also been observed in ..gamma..-irradiated Ge and may be oxygen-vacancy related defects, while the third trap may be divacancy related. All three traps anneal out at low temperatures (<300/sup 0/C). Boron, from room temperature implantation of BF/sub 2//sup +/ into Ge, is not substitutionally active prior to a post implant annealing step of 250/sup 0/C for 30 minutes. After annealing additional shallow acceptors are observed in BF/sub 2//sup +/ implanted samples which may be due to fluorine or flourine related complexes which are electrically active.

Jones, K.S.

1985-05-01T23:59:59.000Z

378

Concentrating Solar Power: Technology Overview  

SciTech Connect (OSTI)

Concentrating Solar Power (CSP) has the potential to contribute significantly to the generation of electricity by renewable energy resources in the U.S.. Thermal storage can extend the duty cycle of CSP beyond daytime hours to early evening where the value of electricity is often the highest. The potential solar resource for the southwest U.S. is identified, along with the need to add power lines to bring the power to consumers. CSP plants in the U.S. and abroad are described. The CSP cost of electricity at the busbar is discussed. With current incentives, CSP is approaching competiveness with conventional gas-fired systems during peak-demand hours when the price of electricity is the highest. It is projected that a mature CSP industry of over 4 GWe will be able to reduce the energy cost by about 50%, and that U.S. capacity could be 120 GW by 2050.

Mehos, M.

2008-01-01T23:59:59.000Z

379

Molecular Ion Beam Transportation for Low Energy Ion Implantation  

SciTech Connect (OSTI)

A joint research and development of steady state intense boron ion sources for 100's of electron-volt ion implanters has been in progress for the past five years. Current density limitation associated with extracting and transporting low energy ion beams result in lower beam currents that in turn adversely affects the process throughput. The transport channel with electrostatic lenses for decaborane (B{sub 10}H{sub 14}) and carborane (C{sub 2}B{sub 10}H{sub 12}) ion beams transportation was developed and investigated. The significant increase of ion beam intensity at the beam transport channel output is demonstrated. The transport channel simulation, construction and experimental results of ion beam transportation are presented.

Kulevoy, T. V.; Kropachev, G. N.; Seleznev, D. N.; Yakushin, P. E.; Kuibeda, R. P.; Kozlov, A. V.; Koshelev, V. A. [Institute for Theoretical and Experimental Physics, Moscow, 117218 (Russian Federation); Hershcovitch, A.; Johnson, B. M. [Brookhaven National Laboratory, Upton, New York 11973 (United States); Gushenets, V. I.; Oks, E. M. [High Current Electronics Institute Russian Academy of Sciences, Tomsk, 634055 (Russian Federation); Polozov, S. M. [Moscow Engineering Physics Institute, Kashirskoe sh. 31, Moscow, 115409 (Russian Federation); Poole, H. J. [PVI, Oxnard, California 93031-5023 (United States)

2011-01-07T23:59:59.000Z

380

Ion exchange phase transitions in water-filled channels with charged walls  

Science Journals Connector (OSTI)

Ion transport through narrow water-filled channels is impeded by a high electrostatic barrier. The latter originates from the large ratio of the dielectric constants of the water and the surrounding media. We show that doping, i.e., immobile charges attached to the walls of the channel, substantially reduces the barrier. This explains why most of the biological ion channels are doped. We show that at rather generic conditions the channels may undergo ion exchange phase transitions (typically of the first order). Upon such a transition a finite latent concentration of ions may either enter or leave the channel, or be exchanged between the ions of different valences. We discuss possible implications of these transitions for the Ca-vs-Na selectivity of biological Ca channels. We also show that transport of divalent Ca ions is assisted by their fractionalization into two separate excitations.

J. Zhang; A. Kamenev; B. I. Shklovskii

2006-05-19T23:59:59.000Z

Note: This page contains sample records for the topic "major ion concentrations" 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

Enhanced life ion source for germanium and carbon ion implantation  

SciTech Connect (OSTI)

Germanium and carbon ions represent a significant portion of total ion implantation steps in the process flow. Very often ion source materials that used to produce ions are chemically aggressive, especially at higher temperatures, and result in fast ion source performance degradation and a very limited lifetime [B.S. Freer, et. al., 2002 14th Intl. Conf. on Ion Implantation Technology Proc, IEEE Conf. Proc., p. 420 (2003)]. GeF{sub 4} and CO{sub 2} are commonly used to generate germanium and carbon beams. In the case of GeF{sub 4} controlling the tungsten deposition due to the de-composition of WF{sub 6} (halogen cycle) is critical to ion source life. With CO{sub 2}, the materials oxidation and carbon deposition must be controlled as both will affect cathode thermionic emission and anti-cathode (repeller) efficiencies due to the formation of volatile metal oxides. The improved ion source design Extended Life Source 3 (Eterna ELS3) together with its proprietary co-gas material implementation has demonstrated >300 hours of stable continuous operation when using carbon and germanium ion beams. Optimizing cogas chemistries retard the cathode erosion rate for germanium and carbon minimizes the adverse effects of oxygen when reducing gas is introduced for carbon. The proprietary combination of hardware and co-gas has improved source stability and the results of the hardware and co-gas development are discussed.

Hsieh, Tseh-Jen; Colvin, Neil; Kondratenko, Serguei [Axcelis Technologies, Inc. 108 Cherry Hill Drive, Beverly, MA 01915 (United States)

2012-11-06T23:59:59.000Z

382

Highly Polarized Ion Sources for Electron Ion Colliders (EIC)  

SciTech Connect (OSTI)

The operation of the RHIC facility at BNL and the Electron Ion Colliders (EIC) under development at Jefferson Laboratory and BNL need high brightness ion beams with the highest polarization. Charge exchange injection into a storage ring or synchrotron and Siberian snakes have the potential to handle the needed polarized beam currents, but first the ion sources must create beams with the highest possible polarization to maximize collider productivity, which is proportional to a high power of the polarization. We are developing one universal H-/D- ion source design which will synthesize the most advanced developments in the field of polarized ion sources to provide high current, high brightness, ion beams with greater than 90% polarization, good lifetime, high reliability, and good power efficiency. The new source will be an advanced version of an atomic beam polarized ion source (ABPIS) with resonant charge exchange ionization by negative ions. An integrated ABPIS design will be prepared based on new materials and an optimized magnetic focusing system. Polarized atomic and ion beam formation, extraction, and transport for the new source will be computer simulated.

V.G. Dudnikov, R.P. Johnson, Y.S. Derbenev, Y. Zhang

2010-03-01T23:59:59.000Z

383

Determination of secondary ion mass spectrometry relative sensitivity factors for polar and non-polar ZnO  

SciTech Connect (OSTI)

Zinc oxide (ZnO) is regarded as a promising material for optoelectronic devices, due to its electronic properties. Solely, the difficulty in obtaining p-type ZnO impedes further progress. In this connection, the identification and quantification of impurities is a major demand. For quantitative information using secondary ion mass spectrometry (SIMS), so-called relative sensitivity factors (RSF) are mandatory. Such conversion factors did not yet exist for ZnO. In this work, we present the determined RSF values for ZnO using primary (ion implanted) as well as secondary (bulk doped) standards. These RSFs have been applied to commercially available ZnO substrates of different surface termination (a-plane, Zn-face, and O-face) to quantify the contained impurities. Although these ZnO substrates originate from the same single-crystal, we observe discrepancies in the impurity concentrations. These results cannot be attributed to surface termination dependent RSF values for ZnO.

Laufer, Andreas; Volbers, Niklas; Eisermann, Sebastian; Meyer, Bruno K. [Physikalisches Institut, Justus-Liebig-Universitaet Giessen, Heinrich-Buff-Ring 16, 35392 Giessen (Germany); Potzger, Kay [Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden (Germany); Geburt, Sebastian; Ronning, Carsten [Institut fuer Festkoerperphysik, Universitaet Jena, Max-Wien-Platz 1, 07743 Jena (Germany)

2011-11-01T23:59:59.000Z

384

Compact ion accelerator source  

DOE Patents [OSTI]

An ion source includes a conductive substrate, the substrate including a plurality of conductive nanostructures with free-standing tips formed on the substrate. A conductive catalytic coating is formed on the nanostructures and substrate for dissociation of a molecular species into an atomic species, the molecular species being brought in contact with the catalytic coating. A target electrode placed apart from the substrate, the target electrode being biased relative to the substrate with a first bias voltage to ionize the atomic species in proximity to the free-standing tips and attract the ionized atomic species from the substrate in the direction of the target electrode.

Schenkel, Thomas; Persaud, Arun; Kapadia, Rehan; Javey, Ali

2014-04-29T23:59:59.000Z

385

MEASUREMENT OF CONDUCTING ION MOBILITY AND CONCENTRATIONIN ION-CONTAINING POLYMERS.  

E-Print Network [OSTI]

??In this study, we focus on how to measure conducting ion mobility and conducting ion number density in ion-containing polymers. From a fundamental side, we (more)

Choi, U Hyeok

2009-01-01T23:59:59.000Z

386

IonBeamMicroFab  

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

Ion Beam Manufacture of Microscale Ion Beam Manufacture of Microscale Tools and Components Manufacturing Technologies Sandia Manufacturing Science &Technology's Focused Ion Beam (FIB) laboratory provides an opportunity for research, development and prototyping. Currently, our scientists are devel- oping methods for ion beam sculpting microscale tools, components and devices. This includes shaping of specialty tools such as end-mills, turning tools and indenters. Many of these have been used in ultra-precision machining DOE applications. Additionally, staff are developing the capability to ion mill geo- metrically-complex features and substrates. This includes the ability to sputter predeter- mined curved shapes of various symmetries and periodicities. Capabilities and Expertise * Two custom-built focused ion beam sys-

387

Mini ion trap mass spectrometer  

DOE Patents [OSTI]

An ion trap is described which operates in the regime between research ion traps which can detect ions with a mass resolution of better than 1:10{sup 9} and commercial mass spectrometers requiring 10{sup 4} ions with resolutions of a few hundred. The power consumption is kept to a minimum by the use of permanent magnets and a novel electron gun design. By Fourier analyzing the ion cyclotron resonance signals induced in the trap electrodes, a complete mass spectra in a single combined structure can be detected. An attribute of the ion trap mass spectrometer is that overall system size is drastically reduced due to combining a unique electron source and mass analyzer/detector in a single device. This enables portable low power mass spectrometers for the detection of environmental pollutants or illicit substances, as well as sensors for on board diagnostics to monitor engine performance or for active feedback in any process involving exhausting waste products. 10 figs.

Dietrich, D.D.; Keville, R.F.

1995-09-19T23:59:59.000Z

388

Mini ion trap mass spectrometer  

DOE Patents [OSTI]

An ion trap which operates in the regime between research ion traps which can detect ions with a mass resolution of better than 1:10.sup.9 and commercial mass spectrometers requiring 10.sup.4 ions with resolutions of a few hundred. The power consumption is kept to a minimum by the use of permanent magnets and a novel electron gun design. By Fourier analyzing the ion cyclotron resonance signals induced in the trap electrodes, a complete mass spectra in a single combined structure can be detected. An attribute of the ion trap mass spectrometer is that overall system size is drastically reduced due to combining a unique electron source and mass analyzer/detector in a single device. This enables portable low power mass spectrometers for the detection of environmental pollutants or illicit substances, as well as sensors for on board diagnostics to monitor engine performance or for active feedback in any process involving exhausting waste products.

Dietrich, Daniel D. (Livermore, CA); Keville, Robert F. (Valley Springs, CA)

1995-01-01T23:59:59.000Z

389

Ion exchange technology assessment report  

SciTech Connect (OSTI)

In the execution of its charter, the SRS Ion Exchange Technology Assessment Team has determined that ion exchange (IX) technology has evolved to the point where it should now be considered as a viable alternative to the SRS reference ITP/LW/PH process. The ion exchange media available today offer the ability to design ion exchange processing systems tailored to the unique physical and chemical properties of SRS soluble HLW's. The technical assessment of IX technology and its applicability to the processing of SRS soluble HLW has demonstrated that IX is unquestionably a viable technology. A task team was chartered to evaluate the technology of ion exchange and its potential for replacing the present In-Tank Precipitation and proposed Late Wash processes to remove Cs, Sr, and Pu from soluble salt solutions at the Savannah River Site. This report documents the ion exchange technology assessment and conclusions of the task team.

Duhn, E.F.

1992-01-01T23:59:59.000Z

390

Ion exchange technology assessment report  

SciTech Connect (OSTI)

In the execution of its charter, the SRS Ion Exchange Technology Assessment Team has determined that ion exchange (IX) technology has evolved to the point where it should now be considered as a viable alternative to the SRS reference ITP/LW/PH process. The ion exchange media available today offer the ability to design ion exchange processing systems tailored to the unique physical and chemical properties of SRS soluble HLW`s. The technical assessment of IX technology and its applicability to the processing of SRS soluble HLW has demonstrated that IX is unquestionably a viable technology. A task team was chartered to evaluate the technology of ion exchange and its potential for replacing the present In-Tank Precipitation and proposed Late Wash processes to remove Cs, Sr, and Pu from soluble salt solutions at the Savannah River Site. This report documents the ion exchange technology assessment and conclusions of the task team.

Duhn, E.F.

1992-12-31T23:59:59.000Z

391

Concentrator Photovoltaic System Basics | Department of Energy  

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

Concentrator Photovoltaic System Basics Concentrator Photovoltaic System Basics Concentrator Photovoltaic System Basics August 20, 2013 - 4:12pm Addthis Concentrator photovoltaic (PV) systems use less solar cell material than other PV systems. PV cells are the most expensive components of a PV system, on a per-area basis. A concentrator makes use of relatively inexpensive materials such as plastic lenses and metal housings to capture the solar energy shining on a fairly large area and focus that energy onto a smaller area-the solar cell. One measure of the effectiveness of this approach is the concentration ratio-in other words, how much concentration the cell is receiving. Concentrator PV systems have several advantages over flat-plate systems. First, concentrator systems reduce the size or number of cells needed and

392

Production of fullerenes using concentrated solar flux  

DOE Patents [OSTI]

A method of producing soot containing high amounts of fullerenes comprising: providing a primary concentrator capable of impingement of a concentrated beam of sunlight onto a carbon source to cause vaporization of carbon and subsequent formation of fullerenes, or providing a solar furnace having a primary concentrator with a focal point that concentrates a solar beam of sunlight; providing a reflective secondary concentrator having an entrance aperture and an exit aperture at the focal point of the solar furnace; providing a carbon source at the exit aperture of the secondary concentrator; supplying an inert gas over the carbon source to keep the secondary concentrator free from vaporized carbon; and impinging a concentrated beam of sunlight from the secondary concentrator on the carbon source to vaporize the carbon source into a soot containing high amounts of fullerenes.

Fields, Clark L. (Greeley, CO); Pitts, John Roland (Lakewood, CO); King, David E. (Lakewood, CO); Hale, Mary Jane (Golden, CO); Bingham, Carl E. (Denver, CO); Lewandowski, Allan A. (Evergreen, CO)

2000-01-01T23:59:59.000Z

393

Federal Energy Management Program: Operations and Maintenance for Major  

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

for Major Equipment Types to someone by E-mail for Major Equipment Types to someone by E-mail Share Federal Energy Management Program: Operations and Maintenance for Major Equipment Types on Facebook Tweet about Federal Energy Management Program: Operations and Maintenance for Major Equipment Types on Twitter Bookmark Federal Energy Management Program: Operations and Maintenance for Major Equipment Types on Google Bookmark Federal Energy Management Program: Operations and Maintenance for Major Equipment Types on Delicious Rank Federal Energy Management Program: Operations and Maintenance for Major Equipment Types on Digg Find More places to share Federal Energy Management Program: Operations and Maintenance for Major Equipment Types on AddThis.com... Sustainable Buildings & Campuses Operations & Maintenance

394

Secretary Chu Announces Major New Recovery Act Milestone: 300...  

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

Major New Recovery Act Milestone: 300,000 Homes Weatherized Secretary Chu Announces Major New Recovery Act Milestone: 300,000 Homes Weatherized January 19, 2011 - 12:00am Addthis...

395

Y-12 fulfills major milestone in fuel conversion commitment for...  

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

fulfills major ... Y-12 fulfills major milestone in fuel conversion commitment for Jamaican research reactor Posted: June 3, 2014 - 4:42pm The Y-12 National Security Complex...

396

Environmental Effects Abroad of Major Federal Actions | Department of  

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

Effects Abroad of Major Federal Actions Effects Abroad of Major Federal Actions Environmental Effects Abroad of Major Federal Actions On January 4, 1979, President Carter signed Executive Order 12114, entitled Environmental Effects of Major Federal Actions. The purpose of this Council on Environmental Quality memorandum is to initiate the consultation process required by this Executive Order. 44 Fed Reg 18633: Council on Environmental Quality: Environmental Effects Abroad of Major Federal Actions More Documents & Publications Implementation of Executive Order 12114 Environmental Effects Abroad of Major Federal Actions: Final Guideline EO 12114: Environmental Effects Abroad of Major Federal Actions Unified Procedures Applicable to Major Federal Actions Relating to Nuclear Activities Subject to Executive Order 12114 (State Department, 44 Fed Reg

397

Planar photovoltaic solar concentrator module  

DOE Patents [OSTI]

A planar photovoltaic concentrator module for producing an electrical signal from incident solar radiation includes an electrically insulating housing having a front wall, an opposing back wall and a hollow interior. A solar cell having electrical terminals is positioned within the interior of the housing. A planar conductor is connected with a terminal of the solar cell of the same polarity. A lens forming the front wall of the housing is operable to direct solar radiation incident to the lens into the interior of the housing. A refractive optical element in contact with the solar cell and facing the lens receives the solar radiation directed into the interior of the housing by the lens and directs the solar radiation to the solar cell to cause the solar cell to generate an electrical signal. An electrically conductive planar member is positioned in the housing to rest on the housing back wall in supporting relation with the solar cell terminal of opposite polarity. The planar member is operable to dissipate heat radiated by the solar cell as the solar cell generates an electrical signal and further forms a solar cell conductor connected with the solar cell terminal to permit the electrical signal generated by the solar cell to be measured between the planar member and the conductor. 5 figs.

Chiang, C.J.

1992-12-01T23:59:59.000Z

398

Determination of Trace Inorganic Anions in Weak Acids by Single-Pump Column-Switching Ion Chromatography  

Science Journals Connector (OSTI)

......China) were used. Polyethylene containers were used for storage of the concentrated acid samples. Equipment Most chromatographic...Mou, and J.M. Riviello. Determination of ammonium in seawater by column-switching ion chromatography. J. Chromatogr......

Haibao Zhu; Huadong Chen; Yingying Zhong; Dandan Ren; Yaling Qian; Hongfang Tang; Yan Zhu

2010-08-01T23:59:59.000Z

399

Report cites unemployment as major health risk in Britain  

Science Journals Connector (OSTI)

... Nature Publishing Group 10.1038/335290b0 Report cites unemployment as major health risk in BritainChristine

Christine McGourty

1988-09-22T23:59:59.000Z

400

Ion source developments for the production of radioactive isotope beams at TRIUMF  

SciTech Connect (OSTI)

At the ISAC facility at TRIUMF radioactive ions are produced by bombarding solid targets with up to 100 ?A of 500 MeV protons. The reaction products have to diffuse out of the hot target into an ion source. Normally, singly charged ions are extracted. They can be transported either directly to experiments or via an ECR charge state breeder to a post accelerator. Several different types of ion sources have to be used in order to deliver a large variety of rare isotope beams. At ISAC those are surface ion sources, forced electron beam arc discharge (FEBIAD) ion sources and resonant laser ionization sources. Recent development activities concentrated on increasing the selectivity for the ionization to suppress isobaric contamination in the beam. Therefore, a surface ion rejecting resonant laser ionization source (SIRLIS) has been developed to suppress ions from surface ionization. For the FEBIAD ion source a cold transfer line has been introduced to prevent less volatile components from reaching the ion source.

Ames, F., E-mail: ames@triumf.ca; Bricault, P.; Heggen, H.; Kunz, P.; Lassen, J.; Mjs, A.; Raeder, S.; Teigelhfer, A. [TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T2A3 (Canada)] [TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T2A3 (Canada)

2014-02-15T23:59:59.000Z

Note: This page contains sample records for the topic "major ion concentrations" 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

RHIC | Relativistic Heavy Ion Collider  

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

breakthrough accelerator could collide electrons with heavy ions or protons at nearly the speed of light to create "snapshots" of the force binding all visible matter. Accelerator...

402

Psychology Major www.psychology.pitt.edu/undergraduate  

E-Print Network [OSTI]

Psychology Major www.psychology.pitt.edu/undergraduate Revised: 01/2014 The undergraduate psychology major introduces students to a breadth of psychological topics, including the biological, social for a variety of career and graduate school paths. Required courses for the Psychology major The psychology

Jiang, Huiqiang

403

Conceptual design of first toroidal electron cyclotron resonance ion source and modeling of ion extraction from it  

E-Print Network [OSTI]

Electron Cyclotron Resonance Ion Sources (ECRIS) progressed to higher and higher ion currents and charge states by adopting stronger magnetic fields (beneficial for confinement) and proportionally higher ECR frequencies. Further improvements would require the attainment of "triple products" of density, temperature and confinement time comparable with major fusion experiments. For this, we propose a new, toroidal rather than linear, ECRIS geometry, which would at the same time improve confinement and make better use of the magnetic field. Ion extraction is more complicated than from a linear device, but feasible, as our modelling suggests: single-particle tracings showed successful extraction by at least two techniques, making use respectively of a magnetic extractor and of ExB drifts. Additional techniques are briefly discussed.

Caliri, C; Volpe, F A

2015-01-01T23:59:59.000Z

404

Lithium-Ion battery State of Charge estimation with a Kalman Filter based on a electrochemical model  

E-Print Network [OSTI]

Lithium-Ion battery State of Charge estimation with a Kalman Filter based on a electrochemical state of charge (SOC). In this paper an averaged electrochemical Lithium-ion battery model suitable-Volmer current and the solid concentration at the interface with the electrolyte and (ii) the battery current

Stefanopoulou, Anna

405

Optics for Concentration on PV Cells  

Science Journals Connector (OSTI)

Modern PhotoVoltaic cells and technologies for Concentrating PhotoVoltaics require high level of solar light concentration. The paper proposes different collectors for the exploitation of solar light using CPV sy...

P. Sansoni; D. Fontani; F. Francini

2009-01-01T23:59:59.000Z

406

Photovoltaic concentrator using a holographic optical element  

Science Journals Connector (OSTI)

A photovoltaic concentrator is proposed that uses equatorial tracking (the rotation axis of a concentrator points to the North Star), so that the change of the suns altitude angle is...

Zhang, Y W; Ih, C S; Yan, H F; Chang, M J

1988-01-01T23:59:59.000Z

407

Ethylene Glycol Poisoning and Lactate Concentrations  

Science Journals Connector (OSTI)

......2009 letter Letter to the Editor Ethylene Glycol Poisoning and Lactate Concentrations...Wilrijkstraat 10, B-2650 Edegem, Belgium Ethylene glycol poisoning and lactate concentrations...Comment Letter | 107-21-1 Ethylene Glycol 50-21-5 Lactic Acid......

Philippe G. Jorens

2009-09-01T23:59:59.000Z

408

A portable and high energy efficient desalination/purification system by ion concentration polarization  

E-Print Network [OSTI]

The shortage of fresh water is one of the acute challenges that the world is facing now and, thus, energy efficient desalination strategies can provide substantial answers for the water-crisis. Current desalination methods ...

Kim, Sung Jae

409

Determining Chlorine Concentrations in Air and Water Samples for Scrubbing Studies Using Ion Chromatography  

Science Journals Connector (OSTI)

......References 2. J.L. Morrison. Recovery scrubber for waste chlorine gas. Tappi 51(12): 124A25A (1968). 3. G.Y. Pan, J.F. DeGraw, and J.J. Renard. Tappi Proceedings, 1982 Pulping Conference, pp. 36570. 4. I.F. Rees. Bleach......

William C. Askew; Stephen J. Morisani

1989-01-01T23:59:59.000Z

410

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries using Synchrotron Radiation Techniques  

E-Print Network [OSTI]

Relationships in the Li-Ion Battery Electrode Material LiNiAl foil may be used for Li ion battery cathode materials andElectrode materials, Li ion battery, Na ion battery, X-ray

Doeff, Marca M.

2013-01-01T23:59:59.000Z

411

Concentration in Mathematics (2014-2015)  

E-Print Network [OSTI]

Concentration in Mathematics (2014-2015) What Can You Do With Math? Concentration in mathematics is an excellent preparation for a career in either pure or applied mathematics, in academia or in industry on mathematical methods, a math concentration can provide an invaluable background for many different careers

Wolfe, Patrick J.

412

Non-imaging optics in photovoltaic concentration  

Science Journals Connector (OSTI)

It is suggested that solar energy could become a more economical power source through the use of techniques which concentrate the maximum amount of light onto photovoltaic cells. Limits of concentration are discussed and the design of practical 3D concentrations is considered

A. Luque

1986-01-01T23:59:59.000Z

413

Concentration of Atmospheric Radon and Wind Direction  

Science Journals Connector (OSTI)

... in Lisbon, near the sea, is therefore excellent to test any probable relationship between radon concentration and wind directions since only half the possible wind directions are continental ones, ... since only half the possible wind directions are continental ones, therefore corresponding probably to higher radon concentrations. In order to study any correlation, the concentration of ...

F. BARREIRA

1961-06-17T23:59:59.000Z

414

Apparatus and method of dissociating ions in a multipole ion guide  

DOE Patents [OSTI]

A method of dissociating ions in a multipole ion guide is disclosed. A stream of charged ions is supplied to the ion guide. A main RF field is applied to the ion guide to confine the ions through the ion guide. An excitation RF field is applied to one pair of rods of the ion guide. The ions undergo dissociation when the applied excitation RF field is resonant with a secular frequency of the ions. The multipole ion guide is, but not limited to, a quadrupole, a hexapole, and an octopole.

Webb, Ian K.; Tang, Keqi; Smith, Richard D.; Ibrahim, Yehia M.; Anderson, Gordon A.

2014-07-08T23:59:59.000Z

415

Novel endothermic and exothermic ion-molecule reactions as observed in a Fourier transform mass spectrometer  

E-Print Network [OSTI]

NOVEL ENDOTHERMIC AND EXOTHERMIC ION-MOLECULE REACTIONS AS OBSERVED IN A FOURIER TRANSFORM MASS SPECTROMETER Thesis by DONALD LEE BRICKER II Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE AUGUST 1986 Major Subject: Chemistry NOVEL ENDOTHERMIC AND EXOTHERMIC ION-MOLECULE REACTIONS AS OBSERVED IN A FOURIER TRANSFORM MASS SPECTROMETER A Thesis by Donald Lee Bricker II Approved as to style and content by...

Bricker, Donald Lee

1986-01-01T23:59:59.000Z

416

The influence of copper and bicarbonate ions on the corrosion of aluminum alloys saline solutions  

E-Print Network [OSTI]

THE INFLUENCE OF COPPER AND BICARBONATE IONS ON THE CORROSION OF ALUMINUM ALLOYS IN SALINE SOLUTIONS A Thesis by ALCIBIADES BECERRA-DIAZ Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE August 1972 Major Subject: Mechanical Engineerinq THE INFLUENCE OF COPPER AND BICARBONATE IONS ON THE CORROSION OF ALUMINUM ALLOYS IN SALINE SOLUTIONS A Thesis by ALCIBIADES BECERRA-DIAZ Approved as to sty1e...

Becerra-Diaz, Alcibiades

2012-06-07T23:59:59.000Z

417

Investigation into direct conversion with medium energy He-ion beams  

E-Print Network [OSTI]

INVESTIGATION INTO DIRECT ENERGY CONVERSION WITH MEDIUM ENERGY HELIUM-ION BEAMS A Thesis by AVERY ALLAN GUILD-BINGHAM Submitted to the Office of Graduate Studies of Texas A&M University in partial... fulfillment of the requirements for the degree of MASTER OF SCIENCE December 2004 Major Subject: Nuclear Engineering INVESTIGATION INTO DIRECT ENERGY CONVERSION WITH MEDIUM ENERGY HELIUM-ION BEAMS A Thesis...

Guild-Bingham, Avery A.

2005-02-17T23:59:59.000Z

418

Laser acceleration of ion beams  

E-Print Network [OSTI]

We consider methods of charged particle acceleration by means of high-intensity lasers. As an application we discuss a laser booster for heavy ion beams provided, e.g. by the Dubna nuclotron. Simple estimates show that a cascade of crossed laser beams would be necessary to provide additional acceleration to gold ions of the order of GeV/nucleon.

I. A. Egorova; A. V. Filatov; A. V. Prozorkevich; S. A. Smolyansky; D. B. Blaschke; M. Chubaryan

2007-02-01T23:59:59.000Z

419

Cryogenic silicon surface ion trap  

E-Print Network [OSTI]

Trapped ions are pre-eminent candidates for building quantum information processors and quantum simulators. They have been used to demonstrate quantum gates and algorithms, quantum error correction, and basic quantum simulations. However, to realise the full potential of such systems and make scalable trapped-ion quantum computing a reality, there exist a number of practical problems which must be solved. These include tackling the observed high ion-heating rates and creating scalable trap structures which can be simply and reliably produced. Here, we report on cryogenically operated silicon ion traps which can be rapidly and easily fabricated using standard semiconductor technologies. Single $^{40}$Ca$^+$ ions have been trapped and used to characterize the trap operation. Long ion lifetimes were observed with the traps exhibiting heating rates as low as $\\dot{\\bar{n}}=$ 0.33 phonons/s at an ion-electrode distance of 230 $\\mu$m. These results open many new avenues to arrays of micro-fabricated ion traps.

Michael Niedermayr; Kirill Lakhmanskiy; Muir Kumph; Stefan Partel; Johannes Edlinger; Michael Brownnutt; Rainer Blatt

2014-03-20T23:59:59.000Z

420

Review of ion accelerators  

SciTech Connect (OSTI)

The field of ion acceleration to higher energies has grown rapidly in the last years. Many new facilities as well as substantial upgrades of existing facilities have extended the mass and energy range of available beams. Perhaps more significant for the long-term development of the field has been the expansion in the applications of these beams, and the building of facilities dedicated to areas outside of nuclear physics. This review will cover many of these new developments. Emphasis will be placed on accelerators with final energies above 50 MeV/amu. Facilities such as superconducting cyclotrons and storage rings are adequately covered in other review papers, and so will not be covered here.

Alonso, J.

1990-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "major ion concentrations" 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

Nonlinear integrable ion traps  

SciTech Connect (OSTI)

Quadrupole ion traps can be transformed into nonlinear traps with integrable motion by adding special electrostatic potentials. This can be done with both stationary potentials (electrostatic plus a uniform magnetic field) and with time-dependent electric potentials. These potentials are chosen such that the single particle Hamilton-Jacobi equations of motion are separable in some coordinate systems. The electrostatic potentials have several free adjustable parameters allowing for a quadrupole trap to be transformed into, for example, a double-well or a toroidal-well system. The particle motion remains regular, non-chaotic, integrable in quadratures, and stable for a wide range of parameters. We present two examples of how to realize such a system in case of a time-independent (the Penning trap) as well as a time-dependent (the Paul trap) configuration.

Nagaitsev, S.; /Fermilab; Danilov, V.; /SNS Project, Oak Ridge

2011-10-01T23:59:59.000Z

422

Photo ion spectrometer  

DOE Patents [OSTI]

A charged particle spectrometer for performing ultrasensitive quantitative analysis of selected atomic components removed from a sample. Significant improvements in performing energy and angular refocusing spectroscopy are accomplished by means of a two dimensional structure for generating predetermined electromagnetic field boundary conditions. Both resonance and non-resonance ionization of selected neutral atomic components allow accumulation of increased chemical information. A multiplexed operation between a SIMS mode and a neutral atomic component ionization mode with EARTOF analysis enables comparison of chemical information from secondary ions and neutral atomic components removed from the sample. An electronic system is described for switching high level signals, such as SIMS signals, directly to a transient recorder and through a charge amplifier to the transient recorder for a low level signal pulse counting mode, such as for a neutral atomic component ionization mode.

Gruen, Dieter M. (Downers Grove, IL); Young, Charles E. (Westmont, IL); Pellin, Michael J. (Naperville, IL)

1989-01-01T23:59:59.000Z

423

Photo ion spectrometer  

DOE Patents [OSTI]

A charged particle spectrometer is described for performing ultrasensitive quantitative analysis of selected atomic components removed from a sample. Significant improvements in performing energy and angular refocusing spectroscopy are accomplished by means of a two dimensional structure for generating predetermined electromagnetic field boundary conditions. Both resonance and non-resonance ionization of selected neutral atomic components allow accumulation of increased chemical information. A multiplexed operation between a SIMS mode and a neutral atomic component ionization mode with EARTOF analysis enables comparison of chemical information from secondary ions and neutral atomic components removed from the sample. An electronic system is described for switching high level signals, such as SIMS signals, directly to a transient recorder and through a charge amplifier to the transient recorder for a low level signal pulse counting mode, such as for a neutral atomic component ionization mode. 12 figs.

Gruen, D.M.; Young, C.E.; Pellin, M.J.

1989-12-26T23:59:59.000Z

424

Ion-Exchange Membranes in the Chemical Process Industry  

Science Journals Connector (OSTI)

Other applications of ion-exchange membranes are still in an early state of their development, such as the redox flow battery. ... (40) More recently, interest in electrodialysis as a flow battery has increased and will be briefly discussed in the following. ... One is based on a reversal of regular electrodialysis and is referred to as concentration flow battery,(40) and the other is based on reversal of electrodialysis with bipolar membranes and is referred to as neutralization flow battery. ...

Heiner Strathmann; Andrej Grabowski; Gerhart Eigenberger

2013-03-13T23:59:59.000Z

425

Drivers and Barriers in the Current Concentrated Solar Power (CSP) Market  

Open Energy Info (EERE)

Drivers and Barriers in the Current Concentrated Solar Power (CSP) Market Drivers and Barriers in the Current Concentrated Solar Power (CSP) Market (Webinar) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Drivers and Barriers in the Current Concentrated Solar Power (CSP) Market (Webinar) Focus Area: Solar Topics: Market Analysis Website: www.leonardo-energy.org/webinar-drivers-and-barriers-current-csp-marke Equivalent URI: cleanenergysolutions.org/content/drivers-and-barriers-current-concentr Language: English Policies: Regulations Regulations: Mandates/Targets This video teaches users about the four major types of concentrating solar power technologies (CSP): parabolic trough, tower concentrators, linear Fresnel lenses and dish engine systems. It also provides an overview of the trends in the market and research that should be performed in order to make

426

Solenoid and monocusp ion source  

DOE Patents [OSTI]

An ion source which generates hydrogen ions having high atomic purity incorporates a solenoidal permanent magnets to increase the electron path length. In a sealed envelope, electrons emitted from a cathode traverse the magnetic field lines of a solenoid and a monocusp magnet between the cathode and a reflector at the monocusp. As electrons collide with gas, the molecular gas forms a plasma. An anode grazes the outer boundary of the plasma. Molecular ions and high energy electrons remain substantially on the cathode side of the cusp, but as the ions and electrons are scattered to the aperture side of the cusp, additional collisions create atomic ions. The increased electron path length allows for smaller diameters and lower operating pressures.

Brainard, John Paul (Albuquerque, NM); Burns, Erskine John Thomas (Albuquerque, NM); Draper, Charles Hadley (Albuquerque, NM)

1997-01-01T23:59:59.000Z

427

Solenoid and monocusp ion source  

DOE Patents [OSTI]

An ion source which generates hydrogen ions having high atomic purity incorporates a solenoidal permanent magnets to increase the electron path length. In a sealed envelope, electrons emitted from a cathode traverse the magnetic field lines of a solenoid and a monocusp magnet between the cathode and a reflector at the monocusp. As electrons collide with gas, the molecular gas forms a plasma. An anode grazes the outer boundary of the plasma. Molecular ions and high energy electrons remain substantially on the cathode side of the cusp, but as the ions and electrons are scattered to the aperture side of the cusp, additional collisions create atomic ions. The increased electron path length allows for smaller diameters and lower operating pressures. 6 figs.

Brainard, J.P.; Burns, E.J.T.; Draper, C.H.

1997-10-07T23:59:59.000Z

428

Ion chamber based neutron detectors  

DOE Patents [OSTI]

A neutron detector with monolithically integrated readout circuitry, including: a bonded semiconductor die; an ion chamber formed in the bonded semiconductor die; a first electrode and a second electrode formed in the ion chamber; a neutron absorbing material filling the ion chamber; and the readout circuitry which is electrically coupled to the first and second electrodes. The bonded semiconductor die includes an etched semiconductor substrate bonded to an active semiconductor substrate. The readout circuitry is formed in a portion of the active semiconductor substrate. The ion chamber has a substantially planar first surface on which the first electrode is formed and a substantially planar second surface, parallel to the first surface, on which the second electrode is formed. The distance between the first electrode and the second electrode may be equal to or less than the 50% attenuation length for neutrons in the neutron absorbing material filling the ion chamber.

Derzon, Mark S; Galambos, Paul C; Renzi, Ronald F

2014-12-16T23:59:59.000Z

429

Molecular dynamics simulations of the electrical double layer on smectite surfaces contacting concentrated mixed electrolyte (NaCl-CaCl2)  

SciTech Connect (OSTI)

We report new molecular dynamics results elucidating the structure of the electrical double layer (EDL) on smectite surfaces contacting mixed NaCl-CaCl{sup 2} electrolyte solutions in the range of concentrations relevant to pore waters in geologic repositories for CO{sub 2} or high-level radioactive waste (0.34-1.83 mol{sub c} dm{sup -3}). Our results confirm the existence of three distinct ion adsorption planes (0-, {beta}-, and d-planes), often assumed in EDL models, but with two important qualifications: (1) the location of the {beta}- and d-planes are independent of ionic strength or ion type and (2) 'indifferent electrolyte' ions can occupy all three planes. Charge inversion occurred in the diffuse ion swarm because of the affinity of the clay surface for CaCl{sup +} ion pairs. Therefore, at concentrations 0.34 mol{sub c} dm{sup -3}, properties arising from long-range electrostatics at interfaces (electrophoresis, electro-osmosis, co-ion exclusion, colloidal aggregation) will not be correctly predicted by most EDL models. Co-ion exclusion, typically neglected by surface speciation models, balanced a large part of the clay mineral structural charge in the more concentrated solutions. Water molecules and ions diffused relatively rapidly even in the first statistical water monolayer, contradicting reports of rigid 'ice-like' structures for water on clay mineral surfaces.

Bourg, I.C.; Sposito, G.

2011-04-01T23:59:59.000Z

430

Gettering of transition metals by cavities in silicon formed by helium ion implantation  

SciTech Connect (OSTI)

We have recently completed studies which quantitatively characterize the ability of nanometer-size cavities formed by He ion implantation to getter detrimental metal impurities in Si. Cavity microstructures formed in Si by ion implantation of He and subsequent annealing have been found to capture metal impurities by two mechanisms: (1) chemisorption on internal walls at low concentrations and (2) silicide precipitation at concentrations exceeding the solid solubility. Experiments utilizing ion-beam analysis, cross-sectional transmission electron microscopy, and secondary ion mass spectrometry were performed to quantitatively characterize the gettering effects and to determine the free energies associated with the chemisorbed metal atoms as a function of temperature. Mathematical models utilizing these results have been developed to predict gettering behavior.

Petersen, G.A.; Myers, S.M.; Follstaedt, D.M.

1996-09-01T23:59:59.000Z

431

4th Generation ECR Ion Sources  

E-Print Network [OSTI]

4th Generation ECR Ion Sources Claude M Lyneis, D. Leitner,to developing a 4 th generation ECR ion source with an RFover current 3 rd generation ECR ion sources, which operate

Lyneis, Claude M.

2010-01-01T23:59:59.000Z

432

Concentrating solar power | Open Energy Information  

Open Energy Info (EERE)

Concentrating solar power Concentrating solar power (Redirected from Concentrating Solar Power) Jump to: navigation, search Concentrating Solar Power Basics (The following text is derived from NREL's concentrating solar power information page.)[1] Concentrating solar power (CSP) offers a utility-scale, firm, dispatchable renewable energy option that can help meet our nation's demand for electricity. CSP plants produce power by first using mirrors to focus sunlight to heat a working fluid. Ultimately, this high-temperature fluid is used to spin a turbine or power an engine that drives a generator. And the final product is electricity. Smaller CSP systems can be located directly where the power is needed. Larger, utility-scale CSP applications provide hundreds of megawatts of electricity for the power grid. Both linear concentrator and power tower

433

Metamaterial anisotropic flux concentrators and magnetic arrays  

E-Print Network [OSTI]

A metamaterial magnetic flux concentrator is investigated in detail in combination with a Halbach cylinder of infinite length. A general analytical solution to the field is determined and the magnetic figure of merit is determined for a Halbach cylinder with a flux concentrator. It is shown that an ideal flux concentrator will not change the figure of merit of a given magnet design, while the non-ideal will always lower it. The geometric parameters producing maximum figure of merit, i.e. the most efficient devices, are determined. The force and torque between two concentric Halbach cylinders with flux concentrators is determined and the maximum torque is found. Finally, the effect of non-ideal flux concentrators and the practical use of flux concentrators, as well as demagnetization issues, is discussed.

Bjrk, R; Bahl, C R H

2014-01-01T23:59:59.000Z

434

Concentrating solar power | Open Energy Information  

Open Energy Info (EERE)

Concentrating solar power Concentrating solar power (Redirected from - Concentrating Solar Power) Jump to: navigation, search Concentrating Solar Power Basics (The following text is derived from NREL's concentrating solar power information page.)[1] Concentrating solar power (CSP) offers a utility-scale, firm, dispatchable renewable energy option that can help meet our nation's demand for electricity. CSP plants produce power by first using mirrors to focus sunlight to heat a working fluid. Ultimately, this high-temperature fluid is used to spin a turbine or power an engine that drives a generator. And the final product is electricity. Smaller CSP systems can be located directly where the power is needed. Larger, utility-scale CSP applications provide hundreds of megawatts of electricity for the power grid. Both linear concentrator and power tower

435

Physical properties of Li ion conducting polyphosphazene based polymer electrolytes  

SciTech Connect (OSTI)

We report a systematic study of the transport properties and the underlying physical chemistry of some polyphosphazene (PPhz)-based polymer electrolytes. We synthesized MEEP and variants which employed mixed combinations of different length oxyethylene side-chains. We compare the conductivity and ion-ion interactions in polymer electrolytes obtained with lithium triflate and lithium bis(trifluoromethanesulfonyl)imide (TFSI) salts added to the polymer. The combination of the lithium imide salt and MEEP yields a maximum conductivity of 8 x 10{sup -5} {Omega}{sup -1} cm{sup -1} at room temperature at a salt loading of 8 monomers per lithium. In one of the mixed side-chain variations, a maximum conductivity of 2 x 10{sup -4} {Omega}{sup -1} cm{sup -1} was measured at the same molar ratio. Raman spectral analysis shows some ion aggregation and some polymer - ion interactions in the PPhz-LiTFSI case but much less than observed with Li CF{sub 3}SO{sub 3}. A sharp increase in the Tg as salt is added corresponds to concentrations above which the conductivity significantly decreases and ion associations appear.

Sanderson, S.; Zawodzinski, T.; Hermes, R.; Davey, J.; Dai, Hongli

1996-12-31T23:59:59.000Z

436

Ion exchange performance of commercial crystalline silicotitanates for cesium removal  

SciTech Connect (OSTI)

A new class of inorganic ion exchangers called crystalline silicotitanates (CST), invented by researchers at Sandia National Laboratories and Texas A&M University, has been commercialized in a joint Sandia-UOP effort. The original developmental materials exhibited high selectivity for the ion exchange of cesium, strontium, and several other radionuclides from highly alkaline solutions containing molar concentrations of Na{sup +}. The materials also showed excellent chemical and radiation stability. Together, the high selectivity and stability of the CSTs made them excellent candidates for treatment of solutions such as the Hanford tank supernates and other DOE radwastes. Sandia National Laboratories and UOP have teamed under a Cooperative Research and Development Agreement (CRADA) to develop CSTs in the powdered form and in an engineered form suitable for column ion exchange use. A continuous-flow, column ion exchange process is expected to be used to remove Cs and other radionuclides from the Hanford supernatant. The powder material invented by the Sandia and Texas A&M team consists of submicron-size particles. It is not designed for column ion exchange but may be used in other applications.

Braun, R.; Dangieri, T.J.; Fennelly, D.J. [and others

1996-03-01T23:59:59.000Z

437

Desalination of brackish waters using ion-exchange media  

SciTech Connect (OSTI)

An environmentally friendly method and materials study for desalinating inland brackish waters (i.e., coal bed methane produced waters) using a set of ion-exchange materials is presented. This desalination process effectively removes anions and cations in separate steps with minimal caustic waste generation. The anion-exchange material, hydrotalcite (HTC), exhibits an ion-exchange capacity (IEC) of around 3 mequiv g{sup -1}. The cation-exchange material, an amorphous aluminosilicate permutite-like material, (Na{sub x}+2yAl{sub x}Si{sub 1}-xO{sub 2+y}), has an IEC of around to 2.5 mequiv g{sup -1}. These ion-exchange materials were studied and optimized because of their specific ion-exchange capacity for the ions of interest and their ability to function in the temperature and pH regions necessary for cost and energy effectiveness. Room temperature, minimum pressure column studies (once-pass through) on simulant brackish water (total dissolved solids (TDS) = 2222 ppm) resulted in water containing TDS = 25 ppm. A second once-pass through column study on actual produced water (TDS = similar to 11 000) with a high carbonate concentration used an additional lime softening step and resulted in a decreased TDS of 600 ppm.

Pless, J.D.; Philips, M.L.F.; Voigt, J.A.; Moore, D.; Axness, M.; Krumhansl, J.L.; Nenoff, T.M. [Sandia National Labs., Albuquerque, NM (United States)

2006-06-21T23:59:59.000Z

438

Desalination of brackish waters using ion exchange media.  

SciTech Connect (OSTI)

An environmentally friendly method and materials study for desalinating inland brackish waters (i.e., coal bed methane produced waters) using a set of ion-exchange materials is presented. This desalination process effectively removes anions and cations in separate steps with minimal caustic waste generation. The anion-exchange material, hydrotalcite (HTC), exhibits an ion-exchange capacity (IEC) of {approx} 3 mequiv g{sup -1}. The cation-exchange material, an amorphous aluminosilicate permutite-like material, (Na{sub x+2y}Al{sub x}Si{sub 1-x}O{sub 2+y}), has an IEC of {approx}2.5 mequiv g{sup -1}. These ion-exchange materials were studied and optimized because of their specific ion-exchange capacity for the ions of interest and their ability to function in the temperature and pH regions necessary for cost and energy effectiveness. Room temperature, minimum pressure column studies (once-pass through) on simulant brackish water (total dissolved solids (TDS) = 2222 ppm) resulted in water containing TDS = 25 ppm. A second once-pass through column study on actual produced water (TDS = {approx}11,000) with a high carbonate concentration used an additional lime softening step and resulted in a decreased TDS of 600 ppm.

Pless, Jason D.; Krumhansl, James Lee; Nenoff, Tina Maria; Voigt, James A.; Phillips, Mark L. F.; Axness, Marlene; Moore, Diana Lynn

2005-01-01T23:59:59.000Z

439

Ion Cyclotron Range of Frequency Heating of a Deuterium-Tritium Plasma via the Second-Harmonic Tritium Cyclotron Resonance  

Science Journals Connector (OSTI)

Experiments have been performed on the TFTR to study rf wave heating of a D-T plasma by way of the second-harmonic tritium cyclotron resonance. The addition of tritium ions to a deuterium plasma allows for absorption of the rf waves at the tritium cyclotron harmonics and by electron damping of a mode converted ion Bernstein wave. Competing mechanisms include direct electron damping and damping at the fundamental cyclotron resonance of deuterium, ? particles, and 3He ions. The contribution of each is estimated from a series of plasma discharges where various plasma parameters are varied. The majority of the rf power is found to damp on the tritium ions.

J. R. Wilson; C. E. Bush; D. Darrow; J. C. Hosea; E. F. Jaeger; R. Majeski; M. Murakami; C. K. Phillips; J. H. Rogers; G. Schilling; J. E. Stevens; E. Synakowski; G. Taylor

1995-07-31T23:59:59.000Z

440

Ion Rings for Magnetic Fusion  

SciTech Connect (OSTI)

This Final Technical Report presents the results of the program, Ion Rings for Magnetic Fusion, which was carried out under Department of Energy funding during the period August, 1993 to January, 2005. The central objective of the program was to study the properties of field-reversed configurations formed by ion rings. In order to reach this objective, our experimental program, called the Field-reversed Ion Ring Experiment, FIREX, undertook to develop an efficient, economical technology for the production of field-reversed ion rings. A field-reversed configuration (FRC) in which the azimuthal (field-reversing) current is carried by ions with gyro-radius comparable to the magnetic separatrix radius is called a field-reversed ion ring. A background plasma is required for charge neutralization of the ring, and this plasma will be confined within the ring's closed magnetic flux. Ion rings have long been of interest as the basis of compact magnetic fusion reactors, as the basis for a high-power accelerator for an inertial fusion driver, and for other applications of high power ion beams or plasmas of high energy density. Specifically, the FIREX program was intended to address the longstanding question of the contribution of large-orbit ions to the observed stability of experimental FRCs to the MHD tilt mode. Typical experimental FRCs with s {approx} 2-4, where s is the ratio of separatrix radius to ion gyro-radius, have been stable to tilting, but desired values for a fusion reactor, s > 20, should be unstable. The FIREX ring would consist of a plasma with large s for the background ions, but with s {approx} 1 for the ring ions. By varying the proportions of these two populations, the minimum proportion of large-orbit ions necessary for stability could be determined. The incorporation of large-orbit ions, perhaps by neutral-beam injection, into an FRC has been advanced for the purpose of stabilizing, heating, controlling angular momentum, and aiding the formation of a reactor-scale FRC, and the FIREX program was intended to test the ideas behind this approach. We will describe in this report the technological development path and advances in physics understanding that allowed FIREX to reach a regime in which ion rings were reproducibly created with up to about half the current necessary to produce field reversal. Unfortunately, the experiments were limited to this level by a fundamental, unanticipated aspect of the physics of strong ion rings in plasma. The FIREX ring is a strongly anisotropic, current-carrying population of ions moving faster than the Alfven speed in the background plasma. The rapidly changing ring current excites very large-amplitude Alfven waves in the plasma, and these waves strongly affect the ring, causing rapid energy loss in a way that is not compatible with the success of the ring trapping scenario around which FIREX was designed. The result was that FIREX rings were always very short-lived. We will discuss the implication of these results for possible future use of large-orbit ions in FRCs. In short, it appears that a certain range of the parameters characterizing the ring Alfven mach number and distribution function must be avoided to allow the existence of a long-lived energetic ion component in an FRC. This report will explain why FIREX experimental results cannot be directly scaled to quantitatively predict this range for a particular FRC configuration. This will require accurate, three-dimensional simulations. FIREX results do constitute a very good dataset for validating such a code, and simulations already carried out during this program provide a guide to the important physics involved.

Greenly, John, B.

2005-07-31T23:59:59.000Z

Note: This page contains sample records for the topic "major ion concentrations" 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

A critical evaluation of the literature relating advertising expenditure to economic concentration  

E-Print Network [OSTI]

and concen- tration which would result over time in a decrease in the number of firms in an industry and an increase in the market power among the largest firms. This hypothesis has been subjected to six major studies which tested the validity of Kaldor.... Bain's Method of Classifying Industries by Concentration Ratios 2. Simple Correlation Coefficients 20 3. Results of Multiple Regression on Profit Rates . . 21 4. FTC Industry Classification Criteria 25 5. Eight-Firm Mean Concentration Ratios...

Wells, Monroe Gaddy

1970-01-01T23:59:59.000Z

442

Trickle irrigation of grain sorghum with water of different electrolyte concentrations  

E-Print Network [OSTI]

TRICKLE IRRIGATION OF GRAIN SORGHUM WITH WATER OF DIFFERENT ELECTROLYTE CONCENTRATIONS A Thesis by WILLIAM JOHN SEIFERT, JR. Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree... of MASTER OF SCIENCE May 1973 Major Subject: Agricultural Engineering TRICKLE IRRIGATION OF GRAIN SORGHUM WITH WATER OF DIFFERENT ELECTROLYTE CONCENTRATIONS A Thesis by WILLIAM JOHN SEIFERT& JR. Approved as to sty1e and content by: airman of Commi...

Seifert, William John

2012-06-07T23:59:59.000Z

443

Correlations of fuel economy, exhaust hydro-carbon concentrations, and vehicle performance efficiency  

E-Print Network [OSTI]

CORRELATIONS OF FUEL ECONOMY, EXHAUST HYDROCARBON CONCENTRATIONS, AND VEHICLE PERFORMANCE EFFICIENCY A Thesis by PHILIP DOUGLAS BAUMANN Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE December 1974 Major Subject: Civil Engineering CORRELATIONS OF FUEL ECONOMY, EXHAUST HYDROCARBON CONCENTRATIONS, AND VEHICLE PERFORMANCE EFFICIENCY A Thesis by PHILIP DOUGLAS BAUMANN Approved as to style and content by...

Baumann, Philip Douglas

2012-06-07T23:59:59.000Z

444

Effect of sediment concentration on artificial well recharge in a fine sand aquifer  

E-Print Network [OSTI]

EFFECT OF SEDIMENT CONCENTRATION ON ARTIFICIAL WELL RECHARGE IN A FINE SAND AQUIFER A Thesis By MD. ATAUR RAHMAN Submitted to the Graduate College of the Texas ASM University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE May 1968 Major Subject: Agricultural Engineering EFFECT OF SEDIMENT CONCENTRATION ON ARTIFICIAL WELL RECHARGE IN A FINE SAND AqUIFER A Thesis By MD. ATAUR RAHMAN Approved as to style and content by: (Chairman of ommitt ) ( a o...

Rahman, Mohammed Ataur

1968-01-01T23:59:59.000Z

445

Determination of the concentrations of magnesium and aluminum in alloys by laser produced atomic emission spectroscopy  

E-Print Network [OSTI]

DETERMINATION OF THE CONCENTRATIONS OF MAGNESIUM AND ALUiiINUM IN ALLOYS BY LASER PRODUCED ATOMIC EMISSION SPECTROSCOPY A Thesis by WILLIAM MONROE ASHE Submitted to the Office of Graduate Studies of Texas A&M University in partial... fulfillment of the reqmrements for the degree of MASTER OF SCIENCE December 1997 Major Subject: Physics DETERMINATION OF THE CONCENTRATIONS OF MAGNESIUM AND ALUMINUM ALLOYS BY LASER PRODUCED ATOMIC EMISSION SPECTROSCOPY A Thesis by WILLIAM MONROE ASHE...

Ashe, William Monroe

2012-06-07T23:59:59.000Z

446

High Current Ion Sources and Injectors for Heavy Ion Fusion  

SciTech Connect (OSTI)

Heavy ion beam driven inertial fusion requires short ion beam pulses with high current and high brightness. Depending on the beam current and the number of beams in the driver system, the injector can use a large diameter surface ionization source or merge an array of small beamlets from a plasma source. In this paper, we review the scaling laws that govern the injector design and the various ion source options including the contact ionizer, the aluminosilicate source, the multicusp plasma source, and the MEVVA source.

Kwan, Joe W.

2005-02-15T23:59:59.000Z

447

Simulation of ion beam transport through the 400 Kv ion implanter at Michigan Ion Beam Laboratory  

SciTech Connect (OSTI)

The Michigan Ion Beam Laboratory houses a 400 kV ion implanter. An application that simulates the ion beam trajectories through the implanter from the ion source to the target was developed using the SIMION Registered-Sign code. The goals were to have a tool to develop an intuitive understanding of abstract physics phenomena and diagnose ion trajectories. Using this application, new implanter users of different fields in science quickly understand how the machine works and quickly learn to operate it. In this article we describe the implanter simulation application and compare the parameters of the implanter components obtained from the simulations with the measured ones. The overall agreement between the simulated and measured values of magnetic fields and electric potentials is {approx}10%.

Naab, F. U.; Toader, O. F.; Was, G. S. [Department of Engineering and Radiological Sciences, University of Michigan, 2355 Bonisteel Boulevard, Ann Arbor, MI 48109-2104 (United States)

2013-04-19T23:59:59.000Z

448

List of Major Information Systems,National Nuclear Security Administration  

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

List of Major Information Systems,National Nuclear Security List of Major Information Systems,National Nuclear Security Administration ADaPT Networked: List of Major Information Systems,National Nuclear Security Administration ADaPT Networked: List of Major Information Systems, Defense Line of Business National Nuclear Security Administration ADaPT Networked: Develops and deploys emerging information networking technology to production processes in support of the U.S. nuclear weapons stockpile. National Nuclear Security Administration ADaPT Network Infrastructure: Develops and deploys emerging information networking technology to production processes in support of the U.S. nuclear weapons stockpile. .major_information_systems.pdf List of Major Information Systems,National Nuclear Security Administration ADaPT Networked:

449

Study of Ion Cooling and Ejection from Two Stage Linear Quadrupole Ion Trap consisted of RFQ ion guides  

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

Ion Cooling and Ejection from Two Stage Linear Quadrupole Ion Trap consisted of RFQ ion guides Ion Cooling and Ejection from Two Stage Linear Quadrupole Ion Trap consisted of RFQ ion guides Kozlovskiy V.I., Filatov V. V., Shchepunov (UNIRIB, O.R.A.U. Oak Ridge, TN, USA) V. A., Brusov V. S., Pikhtelev A. R., Zelenov V. V. Introduction The primary objective of this work concerns linear quadrupole ion traps, which are commonly used to interface a continuous ion beam from an external source with a mass analyzer, requiring bunched or pulsed beams. We assume that the ions prepared for mass analysis, are well spatially shaped, and normalized by ion kinetic energy. (Slava, I don't understand the meaning of the previous sentence - I wrote it as I interpreted what you are saying - I may be all wrong) In our work, such a device was developed and built to interface a source of continuous ion beams and a

450

Ion transport through a graphene nanopore  

E-Print Network [OSTI]

Molecular dynamics simulation is utilized to investigate the ionic transport of NaCl in solution through a graphene nanopore under an applied electric field. Results show the formation of concentration polarization layers in the vicinity of the graphene sheet. The non-uniformity of the ion distribution gives rise to an electric pressure which drives vortical motions in the fluid if the electric field is sufficiently strong to overcome the influence of viscosity and thermal fluctuations. The relative importance of hydrodynamic transport and thermal fluctuations in determining the pore conductivity is investigated. A second important effect that is observed is the mass transport of water through the nanopore, with an average velocity proportional to the applied voltage and independent of the pore diameter. The flux arises as a consequence of the asymmetry in the ion distribution with respect to reflection about the plane of the graphene sheet. The accumulation of liquid molecules in the vicinity of the nanopore due to reorientation of the water dipoles by the local electric field is seen to result in a local increasein the liquid density. Results confirm that the electric conductance is proportional to the nanopore diameter for the parameter regimes that we simulated. The occurrence of fluid vortices is found to result in an increase in the effective electrical conductance.

Guohui Hu; Mao Mao; Sandip Ghosal

2013-01-09T23:59:59.000Z

451

Ion transport through cell membrane channels  

E-Print Network [OSTI]

We discuss various models of ion transport through cell membrane channels. Recent experimental data shows that sizes of ion channels are compared to those of ions and that only few ions may be simultaneously in any single channel. Theoretical description of ion transport in such channels should therefore take into account interactions between ions and between ions and channel proteins. This is not satisfied by macroscopic continuum models based on Poisson-Nernst-Planck equations. More realistic descriptions of ion transport are offered by microscopic Brownian and molecular dynamics. One should also take into account a dynamical character of the channel structure. This is not yet addressed in the literature

Jan Gomulkiewicz; Jacek Miekisz; Stanislaw Miekisz

2007-06-05T23:59:59.000Z

452

Ion Beams - Radiation Effects Facility / Cyclotron Institute...  

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

Ion Beams Available Beams Beam Change Times Measurements Useful Graphs Various ion beams have been developed specifically for the Radiation Effects Facility. These beams...

453

Major Source Permits (District of Columbia) | Department of Energy  

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

Major Source Permits (District of Columbia) Major Source Permits (District of Columbia) Major Source Permits (District of Columbia) < Back Eligibility Utility Commercial Industrial Program Info State District of Columbia Program Type Environmental Regulations Provider District Department of the Environment The District reviews designs for new pollution sources and design modifications for existing sources. Permits are issued to allow sources to emit limited and specified amounts of pollution as allowed by air quality laws and regulations. Major sources include power plants, heating plants, and large printing facilities. Three types of permits are issued: pre-construction review permits; new source review permits; and operating permits. These permits include conditions intended to minimize emissions of

454

PPPL scientists take key step toward solving a major astrophysical...  

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

Primary tabs View(active tab) High Resolution Press Releases PPPL scientists take key step toward solving a major astrophysical mystery By John Greenwald September 10, 2014 Tweet...

455

PPPL scientists take key step toward solving a major astrophysical...  

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

Primary tabs View(active tab) High Resolution News PPPL scientists take key step toward solving a major astrophysical mystery By John Greenwald September 10, 2014 Tweet Widget...

456

EM Engineering & Technology Roadmap and Major Technology Demonstration...  

Office of Environmental Management (EM)

Steven L. Krahn Director, Waste Processing Office of Engineering and Technology April 2008 EM Engineering & Technology Roadmap and Major Technology Demonstrations Introduction ...

457

Major detectors in elementary particle physics. Supplement revision May 1985  

SciTech Connect (OSTI)

This report is the second edition of a loose-leaf compendium of the properties and performance characteristics of the major detectors of elementary particle physics.

Gidal, G.; Armstrong, B.; Rittenberg, A.

1985-05-01T23:59:59.000Z

458

Unified Procedures Applicable to Major Federal Actions Relating...  

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

Unified Procedures Applicable to Major Federal Actions Relating to Nuclear Activities Subject to Executive Order 12114 (State Department, 44 Fed Reg 65560) Unified Procedures...

459

Energy Department Announces Achievement of Major Cleanup Milestone...  

Energy Savers [EERE]

Site Department Issues Path Forward for Closing Additional Radioactive Waste Storage Tanks in H Tank Farm WASHINGTON - Today, the Department of Energy reached a major milestone...

460

Major New Mexico employers sign STEM education proclamation  

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

Major New Mexico employers sign STEM education proclamation Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue: Dec. 2014 -...

Note: This page contains sample records for the topic "major ion concentrations" 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

Energy Dept. Report Finds Major Potential to Grow Clean, Sustainable...  

Energy Savers [EERE]

Related Articles Energy Department Report Finds Major Potential to Increase Clean Hydroelectric Power This map demonstrates the potential capacity to generate clean hydroelectric...

462

major-test-partners | netl.doe.gov  

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

major-test-partners News Gasifipedia Coal-Biomass Feed Advanced Fuels Synthesis Systems Analyses International Activity Project Information Project Portfolio Publications...

463

Sandia completes major overhaul of key nuclear weapons test facilities...  

National Nuclear Security Administration (NNSA)

completes major overhaul of key nuclear weapons test facilities | National Nuclear Security Administration People Mission Managing the Stockpile Preventing Proliferation Powering...

464

MAJOR CONFORMED CONTRACTS LINKS Site/Project Contract Link Idaho  

Office of Environmental Management (EM)

MAJOR CONFORMED CONTRACTS LINKS SiteProject Contract Link Idaho Idaho Cleanup Project http:www.id.doe.govdoeidICPContractICPContract.htm Advance Mixed Waste Treatment http:...

465

Operations and Maintenance for Major Equipment Types | Department...  

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

Types Operations and Maintenance for Major Equipment Types Equipment lies at the heart of all operations and maintenance (O&M) activities. This equipment varies greatly...

466

Absorption of infra-red radiation by atmospheric molecular cluster-ions  

E-Print Network [OSTI]

Protonated water clusters are a common species of atmospheric molecular cluster-ion, produced by cosmic rays throughout the troposphere and stratosphere. Under clear-sky conditions or periods of increased atmospheric ionisation, such as solar proton events, the IR absorption by atmospheric ions may affect climate through the radiative balance. Fourier Transform Infrared Spectrometry in a long path cell, of path length 545m, has been used to detect IR absorption by corona-generated positive molecular cluster-ions. The column concentration of ions in the laboratory spectroscopy experiment was estimated to be ~10^13 m-2; the column concentration of protonated atmospheric ions estimated using a simple model is ~10^14 m-2. Two regions of absorption, at 12.3 and 9.1 um are associated with enhanced ion concentrations. After filtering of the measured spectra to compensate for spurious signals from neutral water vapour and residual carbon dioxide, the strongest absorption region is at 9.5 to 8.8 um (1050 to 1140 cm-1)...

Aplin, K L

2005-01-01T23:59:59.000Z

467

Heavy ion fusion--Using heavy ions to make electricity  

E-Print Network [OSTI]

for a practical fusion power reactor. HIF is the only fusionenter the reactor chamber, and focus Heavy Ion Fusion ontoengineering test reactor. The promise of fusion as a power

Celata, C.M.

2004-01-01T23:59:59.000Z

468

Heavy Ion Collisions at RHIC  

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

at Heavy Ion Colliders at Heavy Ion Colliders Theory Drivers & View from LHC Urs Achim Wiedemann CERN PH-TH NSAC Implementation Subcommittee Hearings 7 September 2012 Heavy Ion Physics - Main Tools of Theorists Understanding properties of hot and dense matter from the elementary interactions in QCD High Energy Physics String Theory Computational Physics Fluid Dynamics Dissipative fluid dynamic description * Based on: E-p conservation: 2 nd law of thermodynamics: * Sensitive to properties of matter that are calculated from first principles in quantum field theory - EOS: and sound velocity - transport coefficients: shear , bulk viscosity, conductivities ...

469

Three chamber negative ion source  

DOE Patents [OSTI]

It is an object of this invention provide a negative ion source which efficiently provides a large flux of negatively ionized particles. This invention provides a volume source of negative ions which has a current density sufficient for magnetic fusion applications and has electrons suppressed from the output. It is still another object of this invention to provide a volume source of negative ions which can be electrostatically accelerated to high energies and subsequently neutralized to form a high energy neutral beam for use with a magnetically confined plasma.

Leung, K.N.; Ehlers, K.W.; Hiskes, J.R.

1983-11-10T23:59:59.000Z

470

Graphene/Li-ion battery  

Science Journals Connector (OSTI)

Density function theory calculations were carried out to clarify storage states of Lithium (Li) ions in graphene clusters. The adsorption energy spin polarization charge distribution electronic gap surface curvature and dipole momentum were calculated for each cluster. Li-ion adsorbed graphene doped by one Li atom is spin polarized so there would be different gaps for different spin polarization in electrons. Calculation results demonstrated that a smaller cluster between each two larger clusters is preferable because it could improve grapheneLi-ion batteries; consequently the most proper graphene anode structure has been proposed.

Narjes Kheirabadi; Azizollah Shafiekhani

2012-01-01T23:59:59.000Z

471

Removal and recovery of metal ions from process and waste streams using polymer filtration  

SciTech Connect (OSTI)

Polymer Filtration (PF) is an innovative, selective metal removal technology. Chelating, water-soluble polymers are used to selectively bind the desired metal ions and ultrafiltration is used to concentrate the polymer-metal complex producing a permeate with low levels of the targeted metal ion. When applied to the treatment of industrial metal-bearing aqueous process streams, the permeate water can often be reused within the process and the metal ions reclaimed. This technology is applicable to many types of industrial aqueous streams with widely varying chemistries. Application of PF to aqueous streams from nuclear materials processing and electroplating operations will be described.

Jarvinen, G.D.; Smith, B.F.; Robison, T.W.; Kraus, K.M.; Thompson, J.A.

1999-06-13T23:59:59.000Z

472

Concentrating Solar Power Basics | Department of Energy  

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

Basics Basics Concentrating Solar Power Basics August 20, 2013 - 4:38pm Addthis Text Version This solar concentrator has a fixed-focus faceted dish with a concentration of about 250 suns. This system can be used for large fields connected to the utility grid, hydrogen generation, or water pumping. Credit: Science Applications International Corporation / PIX 13464 Concentrating solar power (CSP) technologies use mirrors to reflect and concentrate sunlight onto receivers that collect solar energy and convert it to heat. This thermal energy can then be used to produce electricity via a steam turbine or heat engine that drives a generator. Concentrating solar power offers a utility-scale, firm, dispatchable renewable energy option that can help meet our nation's demand for

473

The effect of temperature, acid concentration and time on the bromination of phenol for quantitative determinations  

E-Print Network [OSTI]

M P Q P rH Eri E-i P Q 02 tO "tf rH o o t - ; o o o c o o c c u u u rH O CC rH rH O O CO G a> rH u p O ft ft' 24. r -i ion, while the reaction is complete in 5 min utes if the acid concentration be increased to 0...

Weith, Archie J.

1913-01-15T23:59:59.000Z

474

Electrical and optical properties of ZnO films sequentially implanted with P ions  

Science Journals Connector (OSTI)

ZnO thin films deposited on fused silica glass substrates were sequentially implanted with P ions in terms of different energy/fluence combinations, i.e. 150 keV/1.5 ? 1015 ions cm?2, 80 keV/5.5 ? 1014 ions cm?2 and 35 keV/2.5 ? 1014 ions cm?2, or were singly implanted with 150 keV P ions at a fluence of 1.5 ? 1015 ions cm?2. X-ray diffraction, photoluminescence, Hall effect and electrical resistivity measurements were performed to characterize the properties of the films. The results show that both the unimplanted and single-P-ion-implanted films exhibit semi-insulating properties, while the sequentially implanted film shows p-type conductivity with a low carrier concentration. After annealing at 500 C, hole concentration increases distinctly in the sequentially implanted film, and the other films show n-type conductivity. Further increasing annealing temperature to 700 C, all the films show large resistance. Moreover, structures and optical properties of these films have also been systematically investigated. It seems that P substitutes O (PO) and/or zinc vacancies (VZn) play an important role for p-type conductivity in sequentially implanted films.

Y H Xue; X D Zhang; Y Y Shen; D C Zhang; F Zhu; L H Zhang; C L Liu

2011-01-01T23:59:59.000Z

475

Sandia National Laboratories: Concentrating Solar Power: Efficiently...  

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

Equilibrium Mechanisms for Engineering New Thermochemical Storage Sandia Researchers Win CSP:ELEMENTS Funding Award On June 4, 2014, in Advanced Materials Laboratory, Concentrating...

476

Concentrating Solar Power | Department of Energy  

Office of Environmental Management (EM)

technologies use mirrors to reflect and concentrate sunlight onto receivers that collect solar energy and convert it to heat. Thermal energy can then be used to produce...

477

Sandia National Laboratories: Concentrating Solar Power  

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

InstituteSandia Photovoltaic Systems Symposium On April 15, 2014, in Concentrating Solar Power, Distribution Grid Integration, Energy, Facilities, Grid Integration, News,...

478

Sandia National Laboratories: Concentrating Solar Power  

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

Sandia and EMCORE: Solar Photovoltaics, Fiber Optics, MODE, and Energy Efficiency On March 29, 2013, in Concentrating Solar Power, Energy, Partnership, Photovoltaic, Renewable...

479

TOPCAT Solar Cell Alignment & Energy Concentration Technology...  

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

Thermal Solar Thermal Find More Like This Return to Search TOPCAT Solar Cell Alignment & Energy Concentration Technology Sandia National Laboratories Contact SNL About This...

480

Sandia National Laboratories: Concentrating Solar Power  

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

Center in Vermont Achieves Milestone Installation On September 23, 2014, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, News &...

Note: This page contains sample records for the topic "major ion concentrations" from the National Library of EnergyBeta (NLEBeta).
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481

Concentrating Solar Power Resources and Technologies  

Broader source: Energy.gov [DOE]

This page provides a brief overview of concentrating solar power (CSP) technologies supplemented by specific information to apply CSP within the Federal sector.

482

Concentrating Solar Power: Energy from Mirrors  

SciTech Connect (OSTI)

This fact sheet explains how concentrating solar power technology works and the three types of systems in development today: trough, dish, and central receiver.

Poole, L.

2001-02-27T23:59:59.000Z

483

Concentrating Solar Power (Revised) (Fact Sheet)  

SciTech Connect (OSTI)

The fact sheet summarizes the goals and activities of the DOE Solar Energy Technologies Program efforts within its concentrating solar power subprogram.

Not Available

2010-11-01T23:59:59.000Z

484

Technological value of coal concentrates for coking  

Science Journals Connector (OSTI)

Options are outlined for calculating the technological value of coal and coal concentrates in the context of contractual obligations and the quality of the coke produced.

E. N. Stepanov; G. V. Larin; A. E. Stepanova; I. V. Semiokhina

2010-02-01T23:59:59.000Z

485

Sandia National Laboratories: Concentrating Solar Power  

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

Solar Power Technical Management Position On July 12, 2012, in Concentrating Solar Power, Energy, Facilities, Job Listing, National Solar Thermal Test Facility, News,...

486

Sandia National Laboratories: Concentrating Solar Power  

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

Salt Initial Flow Testing is a Tremendous Success On November 2, 2012, in Concentrating Solar Power, News, Renewable Energy, Solar The Molten Salt Test Loop (MSTL ) system at...

487

Sandia National Laboratories: Concentrating Solar Power  

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

Sandia Workers Received Entrepreneurial Spirit Awards On April 3, 2013, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, News &...

488

Sandia National Laboratories: Concentrating Solar Power  

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

Safety and Health Go Green Initiative On December 19, 2012, in Concentrating Solar Power, Energy, Events, Facilities, National Solar Thermal Test Facility, News, News...

489

Sandia National Laboratories: Concentrating Solar Power  

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

in Concentrating Solar Power, Customers & Partners, Energy, News, Partnership, Renewable Energy, Solar Areva Solar is collaborating with Sandia National Laboratories on a new...

490

Project Profile: Concentrated Solar Thermoelectric Power | Department...  

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

Solar Thermoelectric Power Project Profile: Concentrated Solar Thermoelectric Power MIT logo The Rohsenow-Kendall Heat Transfer Lab at Massachusetts Institute of...

491

A solar concentrating photovoltaic/thermal collector .  

E-Print Network [OSTI]

??This thesis discusses aspects of a novel solar concentrating photovoltaic / thermal (PV/T) collector that has been designed to produce both electricity and hot water. (more)

Coventry, Joseph S

2008-01-01T23:59:59.000Z

492

Change in Contaminant Concentration in Fraser  

E-Print Network [OSTI]

during this period: dioxins, furans, polycyclic aromatic hydrocarbons (PAHs), chlorophenolics, resin to the peak in suspended sediment concentration during the freshet sampling period, iv) dioxins

493

Sandia National Laboratories: Concentrating Solar Power  

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

NASA's Solar Tower Test of the 1-Meter Aeroshell On August 23, 2012, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, Partnership,...

494

Sandia National Laboratories: Concentrating Solar Power Systems  

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

Power Systems Air Force Research Laboratory Testing On November 2, 2012, in Concentrating Solar Power, Facilities, National Solar Thermal Test Facility, News, News & Events,...

495

Sandia National Laboratories: Concentrating Solar Power  

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

and Transportation R&D Activities View all EC Publications Related Topics Concentrating Solar Power CSP EFRC Energy Energy Efficiency Energy Security Infrastructure...

496

Microtracking and Self-Adaptive Solar Concentration  

Broader source: Energy.gov [DOE]

This presentation was delivered at the SunShot Concentrating Solar Power (CSP) Program Review 2013, held April 2325, 2013 near Phoenix, Arizona.

497

Experimental Findings On Minor Actinide And Lanthanide Separations Using Ion Exchange  

SciTech Connect (OSTI)

This project seeks to determine if inorganic or hybrid inorganic ion-exchange materials can be exploited to provide effective americium and curium separations. Specifically, we seek to understand the fundamental structural and chemical factors responsible for the selectivity of the tested ion-exchange materials for actinide and lanthanide ions. During FY13, experimental work focused in the following areas: (1) investigating methods to oxidize americium in dilute nitric acid with subsequent ion-exchange performance measurements of ion exchangers with the oxidized americium and (2) synthesis, characterization and testing of ion-exchange materials. Ion-exchange materials tested included alkali titanates, alkali titanosilicates, carbon nanotubes and group(IV) metal phosphonates. Americium oxidation testing sought to determine the influence that other redox active components may have on the oxidation of Am(III). Experimental findings indicated that Pu(IV) is oxidized to Pu(VI) by peroxydisulfate, but there are no indications that the presence of plutonium affects the rate or extent of americium oxidation at the concentrations of peroxydisulfate being used. Tests also explored the influence of nitrite on the oxidation of Am(III). Given the formation of Am(V) and Am(VI) in the presence of nitrite, it appears that nitrite is not a strong deterrent to the oxidation of Am(III), but may be limiting Am(VI) by quickly reducing Am(VI) to Am(V). Interestingly, additional absorbance peaks were observed in the UV-Vis spectra at 524 and 544 nm in both nitric acid and perchloric acid solutions when the peroxydisulfate was added as a solution. These peaks have not been previously observed and do not correspond to the expected peak locations for oxidized americium in solution. Additional studies are in progress to identify these unknown peaks. Three titanosilicate ion exchangers were synthesized using a microwave-accelerated reaction system (MARS?) and determined to have high affinities for lanthanide ions in dilute nitric acid. The K-TSP ion exchanger exhibited the highest affinity for lanthanides in dilute nitric acid solutions. The Ge-TSP ion exchanger shows promise as a material with high affinity, but additional tests are needed to confirm the preliminary results. On the other hand, carbon nanotubes and nitrogen-doped carbon nanotubes exhibited low, but measureable affinities for lanthanide ions in dilute nitric acid solutions (pH 3 and 6). The MWCNT exhibited much lower affinities than the K-TSP in dilute nitric acid solutions. However, the MWCNT are much more chemically stable in concentrated nitric acid solutions and, therefore, may be candidates for ion exchange in more concentrated nitric acid solutions.

Hobbs, D. T.; Shehee, T. C.; Clearfield, A.

2013-09-17T23:59:59.000Z

498

Efficient Ion Heating via Finite-Larmor-Radius Ion-Cyclotron Waves in a Plasma  

Science Journals Connector (OSTI)

Ion heating by externally launched ion Bernstein waves is investigated in the ACT-1 hydrogen plasma. Detailed measurements of wave absorption and of the ion temperature profiles have clearly identified various heating layers near the ion-cyclotron harmonics of deuteriumlike and tritiumlike ions. The observed bulk ion heating with heating quality factor of 10 eV/W.(1010 cm-3) and the power balance estimates suggest excellent overall efficiency for finite-Larmor-radius-ion-cyclotron-resonance-frequency heating.

M. Ono; G. A. Wurden; K. L. Wong

1984-01-02T23:59:59.000Z

499

Attachment 2 … List of Major Information Systems  

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

1 - List of Major Information Systems 1 - List of Major Information Systems Defense Line of Business National Nuclear Security Administration ADaPT Networked: Develops and deploys emerging information networking technology to production processes in support of the U.S. nuclear weapons stockpile. National Nuclear Security Administration ADaPT Network Infrastructure: Develops and deploys emerging information networking technology to production processes in

500

Extending a characterization of majorization to infinite dimensions  

E-Print Network [OSTI]

We consider recent work linking majorization and trumping, two partial orders that have proven useful with respect to the entanglement transformation problem in quantum information, with general Dirichlet polynomials, Mellin transforms, and completely monotone sequences. We extend a basic majorization result to the more physically realistic infinite-dimensional setting through the use of generalized Dirichlet series and Riemann-Stieltjes integrals.

Rajesh Pereira; Sarah Plosker

2014-05-12T23:59:59.000Z