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Studies Of Spinal Li(1+X)Mn(2-X)O4 Rechargeable Lithium Ion Battery, Xiao-Mei Wu, Qing-He Yang, Zhong-Kao Jin, Hao-Qing Wu, Xiang-Fu Zong

Journal of Electrochemistry

The spinel Li intercalation compound Li_1+xMn_2-xO₄ (0< x <1) was prepared by using techniques of cyclic voltammetry. The electrochemical parameters of Li_1+xMn_2-xO₄ electrode vary as either the starting materials or the synthesis temperature changes. It was found that the initial capacity and reversible behaviors of the Li_1+xMn_2-xO₄ electrode depends on the amount of the excess Li, represented as x in Li_1+xMn_2-xO₄. The reversible of Li intercalation process for Li_1+xMn_2-xO₄ electrode was demonstrate by cyclic voltammograms.

Corrosion Characteristics Of Electrodeposited Ni-Mo-P Alloy Immersed In Nacl Solution, Yue Zeng, Hong-Xin Huang, Xiao-Ming Xiao, Shi-Xun Lian, Su-Wei Yao, He-Tong Guo

Journal of Electrochemistry

The corrosion characteristics of electrodeposited Ni-Mo-P alloy immersed in 5wt.% NaCl solution were investigated using immersion, anodic polarization curves, XPS and AES analysis. The corrosion rates of amorphous Ni Mo P alloys are lower than that of crystalline Ni-Mo-P alloys. Anodic polarization curve experiments show that for the electrodeposited Ni-Mo-P alloys, the nickel mol fraction of which has in between 0.719 and 0.868, the corrosion potential moves to positive with the increase of P content, and the peak current value of active region increase with the increase of Mo content in alloys, though the effects of P content on the …

Studies On The Inclusion Behavior Of Cyclodextrins With Ketoprofen By Electrochemical Methods, Jun Gu, Yong Zhang, Jin-Hao Pan

Journal of Electrochemistry

The influences of cyclodextrins and their derivatives on the electrochemical behavior of ketoprofen were studied. The inclusion constants of ketoprofen with β-CD, HP-β-CD and methyl β-CD and the influences of temperature on the inclusion actions were also investigated. The inclusion phenomena is explained with the thermodynamics parameters of the inclusion complexes.

Direct Electro-Oxidation Synthesis Of D-Arabinose On Spectroscopic Graphite Electrode, Hei Wei, Huang Ying

Journal of Electrochemistry

D Arabinose synthesized by direct electro-oxidative decarboxylation of D gluconate on graphite electrode from aqueous solutions. The effects of D gluconate concentration, electrolysis potential, temperature and electrolyte composition on the current efficiency and product yield of electrosynthsis are discussed. The laboratory scale electrosynthesis was achieved with flow through cell. The optimum technology conditions for electrosynthesis were obtained with orthogonal design method. Both galvanostatic and potentionstatic conditions have been exploited, the later was found to be more effective.

Study On Electrosynthesis Of Butyl Butyrate At Conducting Oxide Anode Support On Titanium, Jun-Xiang He, Jin-Cheng Zhou, Kang-Ning Chen

Journal of Electrochemistry

Synthesis of butyl butyrate by direct electroxidation of n butyl alcohol and the electrochemical behaviors of several selected conducting oxide electrodes (Pb/PbO_2, Ti/PbO_2, i/SnO₂+Sb₂O₃/PbO₂ and Ti/SnO₂+Sb₂O₃+PdO_x/PbO₂) have been investigated. The results demonstrated that the intermediate layers of SnO₂, Sb₂O₃ and PdO_x could significantly decrease the interfacial resistance of the electrodes, and that the Ti/SnO₂+Sb₂O₃+PdO_x/PbO₂ electrode possessed better electrocatelytic performance than others.

Electrochemical Investigation Of Effect Of Br- On Redox Behavior Of (Tpp)Co, Chuan-Wei Yan, Hai-Chao Lin, Xiang-Qin Lin

Journal of Electrochemistry

The effect of Br^- anion on electrochemical behavior of (TPP)Co was investigated in 1,2 dichloroethane solution by microelectrode and thin layer cyclic voltammetry technique. It was found that the axially coordination of one Br^- anion to (TPP)Co(Ⅲ)(Br^-)₂ shifts the potential of porphyrin system to more positive value. The reduction peak of 0.12 V (vs.SCE) is attributed to the reduction of (TPP)Co(Ⅲ)(Br^-). It is also postulated that the reduction of (TPP)Co(Ⅲ)(Br^-)₂ occurred at a more negative potential where the reduction of the Co(Ⅱ)/Co(Ⅰ) process happened.

The Study On The Performance Of Mcfc Matrix Prepared By Flow Cast, Hua-Xin Lin, Bao-Lian Yi, Nai-Chao Li, Tian-Xi Qu, En-Jun Zhang, Lian-Yin Kong, Ying-Cai Chen

Journal of Electrochemistry

The matrix for MCFC were prepared by flow cast technique which gives reproducible and reliable results. Its mean pore radius is about 0.18 μm, and the porosity is about 65%. The performance of MCFC stacked with this type of matrix is 0.854 V at 200 mA/cm².

Primary Research Of Reversible Proton Exchange Membrane Regenerative Fuel Cells, Zhi-Gang Shao, Bao-Lian Yi, Ming Han

Journal of Electrochemistry

In this paper, we report the results of our studies on regenerative proton exchange membrane fuel cell (RPEMRFC) catalysts, electrode preparation and their performances. The Pt catalyst for the oxygen electrode was replaced by 60 w%Pt + 40 w%IrO₂ which reduces polarization by 0.2 V in a polymer protone exchange membrane fuel cell. The cycle performance of RPEMRFC was found to be manly effected by the stability of the diffiusion layer of bifunctional oxygen electrode.

Study Of The Effect Of Rare Earth Ions On Dna Using Cyclic Voltammetry And Spectroscopy, Hei-Bai Shen, Yu-Zhuan Kang, Hai-Feng Yang, Lin Yu, Zong-Rang Zhang

Journal of Electrochemistry

The interaction between rare earth ions(e.g. Eu³⁺ ,Ce³⁺, Er³⁺, Sm³⁺, Tb³⁺, La³⁺ and Nd³⁺) and DNA had been investigated by using Cyclic Voltammetry, Ultraviolet and Raman Spectroscopy. After the adding of Ce³⁺ ion to DNA solution, the cathodic peak current of Ce³⁺ ion reduction was found to decrease obviously, and the anodic peak current to decrease even more significantly. Differential UV spectra of Ce³⁺ ion depicted hyperchromic effect after the reaction of these two species and a new peak of 272 nm was found. Differential …

The Study Of Poly [N-(3-Ferrocene Acetamino Propyl- Pyrrole] Film Modified Glucose Electrode, Cheng-Yun Tian, Jing Chen, Li Zhang

Journal of Electrochemistry

A poly [N-(3-ferrocene-acetamino-propyl-pyrrole)] film modified electrode was fabricated and studied by cyclic voltammetric method. The result shows that the modified electrode can give stable redox peaks of ferrocene, and an obvious catalytic peak due to glucose. This modified electrode was used to tabricate a glucose sensor which operates at +0.2 V, so that the ascorbic acid or uric acid doesn't affect the accuracy detection of glucose concentration. The sensor has a linear range of 0.1～10 mmol/L glucose, which the period of long term stability and response time of the sensor are about ten days and 2 min.

Study On The Ti/Sno2/Pbo2 Anode In Sulphuric Acid Solution, Yao-Gang Li, Yan-Pin Shun, Wen-Lin Xu

Journal of Electrochemistry

The Ti/SnO₂/PbO₂ electrode, prepared by the electrodeposition method, was tested as the anode for the oxygen evolution reaction in 1 mol/L H₂SO₄ solution and examined by means of EDS, SEM and XRD. The electrocatalytic activity and the electrochemical stability of the prepared electrode were found to be superior.

Essay On Deprivation, Poverty And Well-Being., Diganta Mukherjee Dr.

Doctoral Theses

Issues like inequity, deprivation and poverty have been a focus of interest for social scientists for a long time. The present thesis explores a few aspects of the above issues. It ermbodies the fruit of my intellectual perambulation in the Economic Research Unit of Indian Statistical Institute (ISI) during the years 1995 - 97. The text is divided into six chapters. The first chapter gives a general overview of different aspects of measuring inequality, deprivation and poverty. The second, third and fourth chapters take up the issue of deprivation measurement in detail. They contain discussions on deprivation ordering, indices and …

Volume 36, Number 14: November 27, 1998, University Of North Dakota

University Letter Archive

No abstract provided.

Wet Deposition In A Global Size-Dependent Aerosol Transport Model: 2. Influence Of The Scavenging Scheme On 210pb Vertical Profiles, Surface Concentrations, And Deposition, W Guelle, Y J. Balkanski, Jack E. Dibb, M Schulz, F Dulac

Earth Sciences

The main atmospheric sink for submicron aerosols is wet removal. Lead 210, the radioactive decay product of ²²²Rn, attaches immediately after being formed to submicron particles. Here we compare the effects of three different wet-scavenging schemes used in global aerosol simulations on the ²¹⁰Pb aerosol distribution using an off-line, size-resolved, global atmospheric transport model. We highlight the merits and shortcomings of each scavenging scheme at reproducing available measurements, which include concentrations in surface air and deposition, as well as vertical profiles observed over North America and western and central North Pacific. We show that model-measurement comparison of total …

The Cord Weekly (November 25, 1998)

The Cord

No abstract provided.

November 25, 1998 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

November 25th 1998, Hispanic News

Inland Empire Hispanic News

No abstract provided.

Faculty Salary Survey, Wku University Senate

Faculty Senate

Report includes:

• All Ranked Personnel by High to Low Salary within Rank
• All Ranked Personnel by Salary within Rank within Department

Process For Enhancing The Activity Of Amyloid Β Peptides, Kenneth Hensley, D. Allan Butterfield, John M. Carney, Michael Aksenov

Chemistry Faculty Patents

A novel process for enhancing activity of an oligopeptide or polypeptide comprising the steps of: providing an oligopeptide or polypeptide, dissolving the oligopeptide or polypeptide in an organic solvent, heating, removing the solvent, and recovering an oligopeptide or polypeptide with enhanced activity is disclosed. Also disclosed are novel oligopeptides and polypeptides enhanced by the process according the invention.

Undergraduate Curriculum And Academic Policy Committee Minutes, November 24, 1998

Undergraduate Curriculum and Academic Policy Committee Minutes

Minutes from the Wright State University Faculty Senate Undergraduate Curriculum and Academic Policy Committee meeting held on November 24, 1998.

The Pan American (1998-11-24), Javier J. Mancha

UTPA Archives - The Pan American Newspaper

47th Year, No. 23

Academic Senate - Agenda, 11/24/1998, Academic Senate

Academic Senate Agendas

No abstract provided.

Grand Valley Forum, Volume 023, Number 17, November 23, 1998, Grand Valley State University

1998-1999, Volume 23

Grand Valley Forum is Grand Valley State's faculty and staff newsletter, published from 1976 to the present.

University Of Northern Iowa Faculty Senate Meeting Minutes, November 23, 1998, University Of Northern Iowa. Faculty Senate.

Documents - Faculty Senate

Meeting minutes from the Faculty Senate of the University of Northern Iowa.

November 23, 1998 Reporter, University Of Alabama At Birmingham

eReporter (campus newsletter)

No abstract provided.

Insulator-Metal Crossover Near Optimal Doping In Pr22xcexcuo4: Anomalous Normal-State Low Temperature Resistivity, P. Fournier, P. Mohanty, E. Maiser, S. Darzens, T. Venkatesan, C. J. Lobb, G. Czjzek, Richard A. Webb, R. L. Greene

Faculty Publications

Normal-state resistivity measurements at high fields and low temperatures in electron-doped Pr_2-xCe_xCuO₄ thin films reveal an insulator-metal crossover near a doping level x≈0.15, similar to a previous report on hole-doped La_2-xSr_xCuO₄. The temperature dependence of the resistivity of insulatinglike samples is sublogarithmic, while for metallic samples (with x = 0.17) the resistivity is linear from 40 mK to 40 K. This surprising latter observation suggests an unusual contribution to the scattering processes at low temperature in these materials. We conclude that the ground state at x = 0.15, corresponding …

Faculty Newsnotes 1998 No. 313, Office Of The Provost

Faculty Newsnotes (1972-2010)

No abstract provided.

Batelaan And Gay Reply, Herman Batelaan, Timothy J. Gay

Timothy J. Gay Publications

In their Comment [1] to our Letter [2], Rutherford and Grobe first disagree with our conclusion that “a tabletop Stern-Gerlach filter is feasible.” Given our estimate of the throughput for such a device, ~0.3 electrons/s, we were clearly not proposing it as an alternative to standard polarized electron sources (~10¹⁵ electrons/s). The main argument for “feasibility” is based on the relatively low currents required to establish the solenoidal magnetic field (5 A)—hence the use of the word “tabletop” in the abstract. In retrospect, a better statement would have been that “experimental demonstration of such a spin-splitting effect may be …

Strong Dissipative Behavior In Quantum Field Theory, Arjun Berera, Marcelo Gleiser, Rudnei O. Ramos

Dartmouth Scholarship

We study the conditions under which an overdamped regime can be attained in the dynamic evolution of a quantum field configuration. Using a real-time formulation of finite temperature field theory, we compute the effective evolution equation of a scalar field configuration, quadratically interacting with a given set of other scalar fields. We then show that, in the overdamped regime, the dissipative kernel in the field equation of motion is closely related to the shear viscosity coefficient, as computed in scalar field theory at finite temperature. The effective dynamics is equivalent to a time-dependent Ginzburg-Landau description of the approach to equilibrium …

The Echo: November 20, 1998, Taylor University

1998-1999 (Volume 86)

Campus Crime – Bill to ‘improve campus safety across the country’ – Vandalism among problems plaguing Ayres Building – Faculty overload reflected in limit to majors, minors – Service learning component to be added to classes – 80s Night–“Saved By the Bell” – International News – National News – State News – Campus Calendar – ‘Jeanne’ Bullock to retire in January: she’ll be missed – “Rhythm & Brass” Christmas Concert – English hall develops relationships through Blood and Fire – Adam Bennett is.. “Dr. Source” – Letter to the editor – Engaging Thoughts – Eating the world: Empathy – Wedding …