Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics Commons™

Open Access. Powered by Scholars. Published by Universities.®

Journal

1996

Discipline
Institution
Keyword
Publication

Articles 1 - 30 of 463

Full-Text Articles in Physical Sciences and Mathematics

Progresses In The Studies On Electrochemical And Surface Properties Of Hydrogen Storage Alloy Materials, Yong Yang, Jum Li, Zugeng Lin Nov 1996

Progresses In The Studies On Electrochemical And Surface Properties Of Hydrogen Storage Alloy Materials, Yong Yang, Jum Li, Zugeng Lin

Journal of Electrochemistry

Recent progresses in the studies on electrochemical and surface properties of hydrogen storage alloy materials are reviewed. This paper includes three sections: 1)Thermodynamic and kinetic studies of metal hydride electrodes, 2)Effects of micro structure and alloy elements of the materials on the electrochemical properties of the electrodes and 3)Correlation between surface properties of the alloy materials and performance of the negative electrode in the nickel metal hydride batteries.

Go to article

Studies Of Electrochemical Behaviors Of Cytochrome C On Pretreated Gold Electrodereceived 16 May, 1996, Jin Luo, Lingling Wu, Shaohua Huang, Zhonghua Lin Nov 1996

Studies Of Electrochemical Behaviors Of Cytochrome C On Pretreated Gold Electrodereceived 16 May, 1996, Jin Luo, Lingling Wu, Shaohua Huang, Zhonghua Lin

Journal of Electrochemistry

The quasi reversible responses of both adsorbed and bulk cytochrome c at the pretreated gold electrode are observed. The adsorption behaviors and reaction kinetics have been studied using in situ FTIR spectroscopy, UV/Vis reflection spectroscopy, voltammetry, AC impedance and potential step methods. The results show that the cytochrome c can irreversibly adsorb on the gold surface in a complete monolayer and the adsorbed layer can mediate the redox reaction of the cytochrome c in the solution in the absence of promoter.

Go to article

Electrochemical Studies Of Cyanocobalamin On Silver Electrode, Zhai Jin, Yang Pin Nov 1996

Electrochemical Studies Of Cyanocobalamin On Silver Electrode, Zhai Jin, Yang Pin

Journal of Electrochemistry

The electrochemical characteristics of cyanocobalamin were separately studied on smooth and roughed silver electrode. It was found that the reduction of cyanocobalamin is two one electron steps on roughed silver but one two electron step on smooth electrode. The reason is due to the ability of absorption of the surface of electrode.

Go to article

Quantitative Evaluation Of Electrochemical Properties Of Mh Alloy By Powder Microelectrode, Ronghui Hu, Hanxi Yang, Jingcheng Liu, Shengxian Li, Chuanxin Cha Nov 1996

Quantitative Evaluation Of Electrochemical Properties Of Mh Alloy By Powder Microelectrode, Ronghui Hu, Hanxi Yang, Jingcheng Liu, Shengxian Li, Chuanxin Cha

Journal of Electrochemistry

In this paper, a quantitative method by use of powder microelectrode combined with cyclic voltammetry and galvanostatic step is described for studying the electrochemical performance characteristic of hydrogen storage alloy(MH). Since the powder microelectrode uses only MH powder and has its depth and diameter of several tens of micrometer, the ohmic and concentration ploarization are greatly reduced and the influences of the technical factors in electrode preparation on the material performance are simply eliminated. Thus, with accurate determination of the load quantity of MH alloy in power microelectrode by absorption spectrometric technique, it is feasible to evaluate quickly and quantitatively …

Go to article

The Preparation Of Heteropoly Compound Polypyrrole Film Modified Electrode And Its Electrochemical Properties, Weiqing Wang, Xiumei Zhang, Long Cheng Nov 1996

The Preparation Of Heteropoly Compound Polypyrrole Film Modified Electrode And Its Electrochemical Properties, Weiqing Wang, Xiumei Zhang, Long Cheng

Journal of Electrochemistry

Electronically conducting polypyrrole doped with heteropolyanions K 10 H 3[Nd(SiMo 7W 4) 2]·xH 2O(denoted as [Nd(SiMo 7W 4) 2] 13- )was synthesized by electrochemical polymerization. This modified electrode maintains the electrochemical and electrocatalytic properties of heteropolyanion, with having good stability and electrocatalytic activity on the reduction of nitric oxide in acidic aqueous solution.

Go to article

A Conductance Study Of Complexes Of Rare Earth With Cryptand (2.2) In Nonaqueous Solvents, Shichang Liu, Aiju Xu, Qiang Zhang Nov 1996

A Conductance Study Of Complexes Of Rare Earth With Cryptand (2.2) In Nonaqueous Solvents, Shichang Liu, Aiju Xu, Qiang Zhang

Journal of Electrochemistry

The coordination reaction of several rare earth nitrates with cryptand (2.2) in (CH 3) 2CO, CH 3CN, CH 3OH and DMF at 25 ℃ has been studied by means of using conductometric titration. The stability constants and the molar conductivities for the 1∶1 coordination compounds were calculated. Since the complexation is accompanied by solvation of the Ln(Ⅲ) ion in nonaqueous solvents, for lanthanide series, there is more or less variation in stability constants of complexes of rare earth with cryptand (2.2) when atomic numbers increas. The orders of the Λ ML(NO 3) 3 values about the same rare earth crown …

Go to article

Poisson Boltzmann Integral Equation In A Charged Capillary And Its Numerical Solutions, Yongxian Qian Nov 1996

Poisson Boltzmann Integral Equation In A Charged Capillary And Its Numerical Solutions, Yongxian Qian

Journal of Electrochemistry

The nonlinear Poisson Boltzmann integral equation (PBIE) governing electrostatic potential distribution in a charged capillary filled with symmetric electrolytes is derived from the same physical principles as used in deriving nonlinear Poisson Boltzmann differential equation, usually called PBE. PBIE is then numerically solved by iteration. In iterate computation discrele values of electrical potential is soly needed, and the first or higher orders of the differential of the potential is not used any more. This does essentially remove the difficulty caused by the very steep variation of the potential near the wall of the capillary. The results of the seven examples …

Go to article

Surface Modifications Of Carbon Materials Used As Anode Of Lithium Ion Battery Ⅰ.Influences Of Oxidation And Reduction Pretreatment On Anode Performance, Shuhua Ma, Hanju Guo, Ji Li, Hongze Liang, Xiabin Jing, Fosong Wang Nov 1996

Surface Modifications Of Carbon Materials Used As Anode Of Lithium Ion Battery Ⅰ.Influences Of Oxidation And Reduction Pretreatment On Anode Performance, Shuhua Ma, Hanju Guo, Ji Li, Hongze Liang, Xiabin Jing, Fosong Wang

Journal of Electrochemistry

The influences of the trace oxygen containing functional groups on surface of carbon material on cell performance of carbon anode for lithium ion batteries were studied by means of the pretreament in various oxidant/reductant systems.The results showed that the rich oxygen containing functional groups impaired the cell performance of carbon material anode,and the reduction of these groups in quantity and oxidation degree can increase charge/discharge capacity and improve first charge/discharge efficiency.The reason was also discussed in the light of effects of surface organic groups on decomposition reactivity of electrolyte and formation process of surface passivating film.

Go to article

Electrochemical Study And Application Of Cyclodextrin And Its Inclusion Complexes, Shuqin Liu, Zhimin Liu, Jinghao Pan Nov 1996

Electrochemical Study And Application Of Cyclodextrin And Its Inclusion Complexes, Shuqin Liu, Zhimin Liu, Jinghao Pan

Journal of Electrochemistry

The electrochemical investigation and application of cyclodextrin and its inclusion complexes in recent years were reviewed. Studies on electrochemical behaviour of cyclodextrin inclusion complexes in our laboratory were introduced.

Go to article

Comparison Of The Charge/Discharge Charasteristics Between Ni Cd And Ni Mh Battery And Its Improvement Of Manufacture Technique, Yumimg Wang Nov 1996

Comparison Of The Charge/Discharge Charasteristics Between Ni Cd And Ni Mh Battery And Its Improvement Of Manufacture Technique, Yumimg Wang

Journal of Electrochemistry

Based on the difference of charge discharge charasteristies between Ni Cd and Ni MH battery, some appropriate manufacture technoque to improve the battery performances or to extend its service life are adopted

Go to article

Determination Of Organic Basis Of Hydrochloride By The Oscillopolarographic Titration, Yongfu Zhan, Zhaoren Meng, Guirong Zhao Nov 1996

Determination Of Organic Basis Of Hydrochloride By The Oscillopolarographic Titration, Yongfu Zhan, Zhaoren Meng, Guirong Zhao

Journal of Electrochemistry

In this paper, diphenhydramine hydrochloride, ephedrine hydrochloride, procaine hydrochloride, vitamin B 1 and vitamin B 6 have been determined by the Oscillopolarographic titration. This method has not been reported in any papers up to now. The characteristics of the method are being quick and exact, easy to observe the final result and saving material tested.

Go to article

Study Of Electrochemistry Of Octa Butyl 2, 3 Naphthalocyanine Manganese(Ⅲ) In Nonaqeous Solvents, Suling Yang, Ersheng Liu, Naisheng Chen, Jinling Huang Nov 1996

Study Of Electrochemistry Of Octa Butyl 2, 3 Naphthalocyanine Manganese(Ⅲ) In Nonaqeous Solvents, Suling Yang, Ersheng Liu, Naisheng Chen, Jinling Huang

Journal of Electrochemistry

The electrochemical behavior of 5,9,14,18,23,27,32,36 Octa Butyl 2,3 Naphalocyanine Manganese (Ⅲ) [(BuO) 8NPcMn(Ⅲ)Cl] in four nonaqueous solvents was studied by means of cyclic voltammetry, and the corresponding half wave potentials (E 1/2 ) of redox reactions were obtained. Four (or five) pairs of redox peaks were assigned. The solvent effect on the electrochemical characteristics of this coordination compound was also discussed preliminarily, and the electrochemical behavior of the complex was compared with that of nonsubstitued naphthalocyanine.

Go to article

High Active Platinum Plated Titanium Electrode, Xiufeng Xiao, Zeshan Zhu Nov 1996

High Active Platinum Plated Titanium Electrode, Xiufeng Xiao, Zeshan Zhu

Journal of Electrochemistry

To prepare the adherent and high active platinum plated titanium electrode, ultrasonic agitation technology and the best conditions of electrodeposition were adopted. Ultrasonic agitation technology can be improved the cohesion between coatings and substrate. The activity of electrode has related to the double layer Capacity of electrode, which was due to the electrode rugosity.

Go to article

Porous Gas Diffusion Oxygen Cathode For Electrodialysis Process, Hongmei Liu, Baolian Yi Nov 1996

Porous Gas Diffusion Oxygen Cathode For Electrodialysis Process, Hongmei Liu, Baolian Yi

Journal of Electrochemistry

In the process of producing silica sols by electrodialysis, with porous gas diffusion oxygen cathode instead of steel cathode, the cell voltage can be reduced 0.86～1.13 V,the power consumption of alkali silica sols (pH=9.5) is about cut down 16%, while the current efficiency has no changing. With porous gas diffusion oxygen cathode instead of steel cathode, the electrolysis electrodialysis process can be returned to electrodialysis process.

Go to article

The Current Distribution On The Anode Surface Of The Seale Oval Tubular Lead Acid Battery, Renao Gu, Jianlin Yao, Zhengfa Deng, Ru Sun Nov 1996

The Current Distribution On The Anode Surface Of The Seale Oval Tubular Lead Acid Battery, Renao Gu, Jianlin Yao, Zhengfa Deng, Ru Sun

Journal of Electrochemistry

The current distribution on anode surface of sealed lead acid batter under different discharge current and degree was studied by chemical analytical method for the first time. We can conclude that the current distribution is not even. The current density on the edge of the electrode surface and the electrode terminal are bigger than other areas, that is, there are edge effect and terminal effect, and these effect are more obvious when the discharge current is 100 A and degree is 100%.

Go to article

Upper Cretaceous/Paleocene Transition Relations In The Gürün Autochthon, East Taurides-Sw Si̇vas (Turkey), Eşref Atabey Nov 1996

Upper Cretaceous/Paleocene Transition Relations In The Gürün Autochthon, East Taurides-Sw Si̇vas (Turkey), Eşref Atabey

Bulletin of the Mineral Research and Exploration

No abstract provided.

Go to article

Inner Platform Sediments With Praebullalveoli̇na Afyoni̇ca Sirel And Acar Around Elaziğ Region (E. Turkey), Niyazi Avşar Nov 1996

Inner Platform Sediments With Praebullalveoli̇na Afyoni̇ca Sirel And Acar Around Elaziğ Region (E. Turkey), Niyazi Avşar

Bulletin of the Mineral Research and Exploration

The presence of the Alveolinidae, Peneroplidae and Miliolidae families, which represent the inner platform sediments of Eocene has been rarely reported in the Mediterranean countries and Turkey up to now. The following fossil assemblage Praebullalveolina afyonica Sirel & Acar, Praerhapydionina huberi Henson,Peneroplis damesini Henson, Peneroplis aff. laevigatus d'Orbingy, Spirolina aff. cylindracea Lamarck, Nummulites striatus (Bruguiere), Gyroidinella magna (Le Calvez), Asterigerina rotula (Kaufmann), Halkyardia minima (Liebus) and Miliolidae have described from the Upper Eocene inner platform sediments around Alatarla, NW Elazığ, E. Turkey. Systematic description and picture of the Anatolian form and the unique alveolinid, Praebullalveolina afyonica. Sirel & Acar, of …

Go to article

Description And Internal Structure Of The Condensate Series: An Example From The Beyşehi̇r-Hoyran Nappe, Baki Varol, Gürkan Tunay Nov 1996

Description And Internal Structure Of The Condensate Series: An Example From The Beyşehi̇r-Hoyran Nappe, Baki Varol, Gürkan Tunay

Bulletin of the Mineral Research and Exploration

No abstract provided.

Go to article

Morphological Features, Ages And Neotectonic Significance Of Pamukkale Travertines, Erhan Altunel Nov 1996

Morphological Features, Ages And Neotectonic Significance Of Pamukkale Travertines, Erhan Altunel

Bulletin of the Mineral Research and Exploration

No abstract provided.

Go to article

Stratigraphy Of The Autochthonous And Allochthonous Units At The Eastern Part Of The Isparta Angel, Western Taurides-Turkey, Mustafa Şenel, İbrahim Gedi̇k, Halil Dalkiliç, Mualla Serdaroğlu, Ali Zafer Bi̇lgi̇n, M. Fuat Uğuz, A. Sait Bölükbaşi, Metin Korucu, Necdet Özgül Nov 1996

Stratigraphy Of The Autochthonous And Allochthonous Units At The Eastern Part Of The Isparta Angel, Western Taurides-Turkey, Mustafa Şenel, İbrahim Gedi̇k, Halil Dalkiliç, Mualla Serdaroğlu, Ali Zafer Bi̇lgi̇n, M. Fuat Uğuz, A. Sait Bölükbaşi, Metin Korucu, Necdet Özgül

Bulletin of the Mineral Research and Exploration

No abstract provided.

Go to article

Discussion On The Origin Of Otluki̇li̇se Iron Deposit Gürün-Si̇vas, Dönmez Çi̇ftçi̇, Taner Ünlü, İ. Sönmez Sayili Nov 1996

Discussion On The Origin Of Otluki̇li̇se Iron Deposit Gürün-Si̇vas, Dönmez Çi̇ftçi̇, Taner Ünlü, İ. Sönmez Sayili

Bulletin of the Mineral Research and Exploration

No abstract provided.

Go to article

Distribution And Genesis Of Neoformed Minerals In Koyunağili (Mihaliççik-Eski̇şehi̇r) Area, Selahattin Kadi̇r, Halil Baş Nov 1996

Distribution And Genesis Of Neoformed Minerals In Koyunağili (Mihaliççik-Eski̇şehi̇r) Area, Selahattin Kadi̇r, Halil Baş

Bulletin of the Mineral Research and Exploration

No abstract provided.

Go to article

From The Editor, Issue 14, 1996, Alvin White Nov 1996

From The Editor, Issue 14, 1996, Alvin White

Humanistic Mathematics Network Journal

No abstract provided.

Go to article

What's All The Fuss About?, Sherman K. Stein Nov 1996

What's All The Fuss About?, Sherman K. Stein

Humanistic Mathematics Network Journal

No abstract provided.

Go to article

The Triex: Explore, Extract, Explain, Sherman K. Stein Nov 1996

The Triex: Explore, Extract, Explain, Sherman K. Stein

Humanistic Mathematics Network Journal

No abstract provided.

Go to article

Noesis, Lee Goldstein Nov 1996

Noesis, Lee Goldstein

Humanistic Mathematics Network Journal

No abstract provided.

Go to article

Puzzles, Patterns Drums: The Dawn Of Mathematics In Rwanda And Burundi., D. Huylebrouck Nov 1996

Puzzles, Patterns Drums: The Dawn Of Mathematics In Rwanda And Burundi., D. Huylebrouck

Humanistic Mathematics Network Journal

No abstract provided.

Go to article

Music And Mathematics, Roxanne Kitts Nov 1996

Music And Mathematics, Roxanne Kitts

Humanistic Mathematics Network Journal

No abstract provided.

Go to article

Book Review: Emblems Of Mind, The Inner Life Of Music And Mathematics, By Edward Rothstein, Sandra Z. Keith Nov 1996

Book Review: Emblems Of Mind, The Inner Life Of Music And Mathematics, By Edward Rothstein, Sandra Z. Keith

Humanistic Mathematics Network Journal

No abstract provided.

Go to article

Book Review: Emblems Of Mind, The Inner Life Of Music And Mathematics, By Edward Rothstein, Dan Fitzgerald, Joel Haack Nov 1996

Book Review: Emblems Of Mind, The Inner Life Of Music And Mathematics, By Edward Rothstein, Dan Fitzgerald, Joel Haack

Humanistic Mathematics Network Journal

No abstract provided.

Go to article

Next Last