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Articles 23581 - 23610 of 27383

Full-Text Articles in Engineering

A Complete Stability Theory For The Kirchhoff Thin Plate Under All Kinds Of Actions, Shyh-Rong Kuo, Chih-Chang Chi, Yeong-Bin Yang Sep 2009

A Complete Stability Theory For The Kirchhoff Thin Plate Under All Kinds Of Actions, Shyh-Rong Kuo, Chih-Chang Chi, Yeong-Bin Yang

Journal of Marine Science and Technology–Taiwan

A complete stability theory for a plate can be constructed by an incremental virtual work equation describing instability effects induced by all kinds of actions. Besides, this incremental virtual work equation should satisfy the rigid body rule, i.e., it should objectively obey the rigid body rule no matter what coordinates systems are adopted. In this paper, a complete nonlinear stability theory for the Kirchhoff thin plate is proposed by using the principle of virtual work and the update Lagrangian formulation. Then, a rigid body motion testing method is developed for examining the incremental virtual work equation. In developing such a …

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Computer Assisted Proof Of Spurious Eigensolution For Annular And Eccentric Membranes, I-Lin Chen, Jeng-Tzong Chen, Wei-Ming Lee, Shang-Kai Kao Sep 2009

Computer Assisted Proof Of Spurious Eigensolution For Annular And Eccentric Membranes, I-Lin Chen, Jeng-Tzong Chen, Wei-Ming Lee, Shang-Kai Kao

Journal of Marine Science and Technology–Taiwan

Spurious eigensolutions in the boundary integral equation (BIE) or boundary element method (BEM) for doublyconnected domain problems, the eccentric and annular membranes, are studied analytically and numerically in this paper. For the mathematical analysis, we employ the null-field integral equation, the degenerate kernels and the Fourier series to prove the existence of spurious eigensolutions in the continuous system. Examples of eccentric case, annular membrane and general shape are solved by using the null-field equation approach and BEM, respectively. Based on the numerical experiment, computer-assisted proof for the existence of spurious eigenvalues in companion with the trivial outer boundary data is …

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A Mathematical Revision Of The Landau-Lifshitz Equation, Chein-Shan Liu, Kuo-Ching Chen, Chau-Shioung Yeh Sep 2009

A Mathematical Revision Of The Landau-Lifshitz Equation, Chein-Shan Liu, Kuo-Ching Chen, Chau-Shioung Yeh

Journal of Marine Science and Technology–Taiwan

For the Landau-Lifshitz equation a Lie type linear system representation in the Minkowski space M3 1+ has been derived previously [25]. The internal symmetry group is a proper orthochronous Lorentz group SOo(3, 1), and the numerical method based on the internal symmetry was developed in [29]. This paper derives another four new representations of the Landau-Lifshitz equation. We prove that this equation admits two generators: one conservative and one dissipative, as well as two brackets: Poisson bracket and dissipative bracket. Upon embedding the Landau-Lifshitz equation into a skew-symmetric matrix space, we can develop a double-bracket flow representation. The conserved magnetization …

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Method Of Fundamental Solutions With External Source For The Eigenfrequencies Of Waveguides, Chia-Ming Fan, Der-Liang Young, Chia-Lin Chiu Sep 2009

Method Of Fundamental Solutions With External Source For The Eigenfrequencies Of Waveguides, Chia-Ming Fan, Der-Liang Young, Chia-Lin Chiu

Journal of Marine Science and Technology–Taiwan

This study adopts a meshless numerical method, the combination of the method of fundamental solutions (MFS) and method of particular solutions (MPS) following the lead of Reutskiy, to determine the eigenfrequencies of four different waveguides, based on the principle of physical response of a system exposed to external source. The response amplitudes to determine the resonant frequencies for the eigenproblems are used. We use the MFS with external source (MFS-ES) and MPS to solve a sequence of inhomogeneous problems for the determination of the eigenfrequencies. This is an alternative to the typical methods of directly solving the homogeneous matrix system …

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Boundary Particle Method For Inverse Cauchy Problems Of Inhomogeneous Helmholtz Equations, Wen Chen, Zhuojia Fu Sep 2009

Boundary Particle Method For Inverse Cauchy Problems Of Inhomogeneous Helmholtz Equations, Wen Chen, Zhuojia Fu

Journal of Marine Science and Technology–Taiwan

This paper investigates the boundary particle method (BPM) coupled with truncated singular value decomposition (TSVD) regularization technique on the solution of inverse Cauchy problems of inhomogeneous Helmholtz equations. Unlike the other boundary discretization methods, the BPM does not require any inner nodes to evaluate the particular solution, since the method uses the recursive composite multiple reciprocity technique to reduce an inhomogeneous problem to a series of higher-order homogeneous problems. The BPM is particular attractive to solve inverse problems thanks to its truly boundary-only meshless merit. In this study, numerical experiments demonstrate that the BPM in conjunction with the TSVD is …

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Antifouling Properties Of Conductive Rubber Coatings Used For Fishing Nets, Jer-Ruey Huang, Wei-Ting Lin, Ran Huang, Jiann-Kuo Wu Sep 2009

Antifouling Properties Of Conductive Rubber Coatings Used For Fishing Nets, Jer-Ruey Huang, Wei-Ting Lin, Ran Huang, Jiann-Kuo Wu

Journal of Marine Science and Technology–Taiwan

The purpose of the present study is to develop a new conductive coating for application on fishing nets that can be used as an anode, while submersed in the sea, to generate free chlorine which will in turn inhibit marine biofouling. To confirm the durability and viability of this coating, long-term field tests were carried out in the Nanao harbor in Taiwan. Electrical resistivity tests showed that conductive rubber with a polyaniline coating demonstrates the lowest resistivity: 0.11 Ωm. This sample also generated optimal quantities of free chlorine, which demonstrates antifouling properties. The use of carbon black in conjunction with …

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Bs News Sep 2009

Bs News

Building Services Engineering

No abstract provided.

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Synthesis And Characterization For A New Organic Cathode Material Of Lithium-Ion Batteries——Poly Sulfurized Chloranilic Acid(Psca), Kai Liu, Jian-Ming Zheng, Gui-Ming Zhong, Yong Yang Aug 2009

Synthesis And Characterization For A New Organic Cathode Material Of Lithium-Ion Batteries——Poly Sulfurized Chloranilic Acid(Psca), Kai Liu, Jian-Ming Zheng, Gui-Ming Zhong, Yong Yang

Journal of Electrochemistry

A new organic cathode material,poly sulfurized chloranilic acid(PSCA),has been successfully synthesized for lithium-ion batteries. 13C solid state NMR and FTIR results indicated that the chorine in chronailic acid was substituted by sulfur after sulfurization. The electrochemical measurements showed that the initial discharge capacity of PSCA was up to 287.6 mAh/g,and 169.9 mAh/g still remained after 100 cycles when cycled between 1.5～3.6 V at the current density of 15 mA/g.

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Silicon Silver Composite Materials For Li-Ion Batteries, Lian-Bang Wang, Xiao-Bo Dai, Xin-Yan Zhu, Xin-Biao Mao, Chun-An Ma Aug 2009

Silicon Silver Composite Materials For Li-Ion Batteries, Lian-Bang Wang, Xiao-Bo Dai, Xin-Yan Zhu, Xin-Biao Mao, Chun-An Ma

Journal of Electrochemistry

properties of the composites were determined by charge-discharge tests and cyclic voltammetry. The composite composed of Si∶Ag with an atomic ratio of 1∶1 (sample 1#) showed good cyclic stability and charge-discharge reversibility. The reversible capacity of the composite (sample 1#) was remained over 300 mAh·g-1 after 50 cycles. Experimental results showed that controlling the potential range of charge-discharge processes could enhance the cyclic performance of alloy materials.

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Synergism Of Complex Additives Of Dtab+Ktl For Zinc Corrosion Inhibition In Koh Solutions, Sheng-Zhou Lin, Zeng-Xin Cai, Gui-Sheng Wang, He-Bing Zhou, Wei-Shan Li Aug 2009

Synergism Of Complex Additives Of Dtab+Ktl For Zinc Corrosion Inhibition In Koh Solutions, Sheng-Zhou Lin, Zeng-Xin Cai, Gui-Sheng Wang, He-Bing Zhou, Wei-Shan Li

Journal of Electrochemistry

The electrochemical behaviors of Zn in 3mol/L KOH solution containing several kinds of inhibitors were investigated by weight-loss,electrochemical methods and SEM. The results showed that both the single ad-ditive and the mixed additives can suppress the corrosion of zinc in 3 mol/LKOH solution. And the inhibition ef-feciency of the mixed additives is higher than that of any single additive because of the synergistic effect between KTL and DTAB. The adsorption of DTAB on the surface of zinc has been enhanced in the presence of KTL.

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A Study On The Lifepo4/Mwcnts Cathode Materials For Li-Ion Batteries, You-Yi Peng, Hai-Yan Zhang, Chun-Hua He, Wei Xie, Zhi-Feng Zeng Aug 2009

A Study On The Lifepo4/Mwcnts Cathode Materials For Li-Ion Batteries, You-Yi Peng, Hai-Yan Zhang, Chun-Hua He, Wei Xie, Zhi-Feng Zeng

Journal of Electrochemistry

The LiFePO4/MWCNTs composite was synthesized by ball milling,then the composite electrode was assembled into button lithium-ion batteries.The structure and morphology of the samples,the electrochemical performance of the electrodes were investigated by ways of X-ray diffraction,scanning electron microscopy,cyclic voltammetry and charge-discharge capacity tests. The electrochemical performance of the composite electrodes with different MWNTs contents were studied. The results indicated that the composite electrode containing 10% MWCNTs(by mass)exhibited the most excellent electrochemical performance with the initial charge-discharge capacities of 139 mAh·g-1,128.5 mAh·g-1,respectively,and a Kulun efficiency of 92.4% at 0.1C rate under room temperature.Compared to the electrodes …

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A Direct Borohydride Fuel Cell With Fecopc2-Catalysed Cathode, Jin-Fu Ma, Yan Liu, Jun-Hua Lai, Yong-Ning Liu Aug 2009

A Direct Borohydride Fuel Cell With Fecopc2-Catalysed Cathode, Jin-Fu Ma, Yan Liu, Jun-Hua Lai, Yong-Ning Liu

Journal of Electrochemistry

In this paper,a membraneless direct borohydride fuel cell was investigated. Cyclic voltammograms of FeCoPc2-modified glassy carbon electrode in the alkaline solution show that FeCoPc2 was active for oxygen reduction reaction. In addition, the steady-state polarization curve tests indicate that FeCoPc2 had better activity than FePc,CoPc or FePc+CoPc, which is due to its conjugated effect and synergistic effect of Fe and Co. Finally, a maximum power density of 110 mW/cm2 was attained, and the 25-day life test shows that the direct borohydride fuel cell had a good stability.

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Simultaneous Determination Of Uric Acid(Ua) And Ascorbic Acid(Aa) At Pca/Gc Electrode, Ren Wang, Ying Zhang, Jie Ding Aug 2009

Simultaneous Determination Of Uric Acid(Ua) And Ascorbic Acid(Aa) At Pca/Gc Electrode, Ren Wang, Ying Zhang, Jie Ding

Journal of Electrochemistry

Poly(cinnamic acid)-modified electrode (PCA /GC) was prepared by potentiostatic technique and was used for determination of uric acid (UA),ascorbic acid (AA),and their mixture by cyclic voltammetry. This modified electrode exhibited a potent and persistent electron-mediating behavior followed by well-separated oxidation peaks toward UA and AA at a scan rate of 50 mV·s-1 with a potential difference of 280 mV,which is large enough to determine UA and AA individually and simultaneously. The catalytic peak current obtained was linearly dependent on the UA and AA concentrations in the range of 2.0×10-6~1.0×10-4 mol·L-1,2.0×10-5~6.0×10-4 mol·L …

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The Electrochemical Behavior Of Daunorubicin Hydrochloride On Galactic Disk Electrode And Its Reaction With Bsa, Hong-Fen Cheng, Yong Zhang, Jie Liu, Yan-Mei Liu Aug 2009

The Electrochemical Behavior Of Daunorubicin Hydrochloride On Galactic Disk Electrode And Its Reaction With Bsa, Hong-Fen Cheng, Yong Zhang, Jie Liu, Yan-Mei Liu

Journal of Electrochemistry

This article used the linear sweep voltammetry and the circulation voltammetry to study the electrochemical behavior of daunorubicin hydrochloride on galactic disk electrode and its electrode reaction with BSA.Also it studied the interaction of daunorubicin hydrochloride with BSA.The results showed that daunorubicin hydrochloride has a sensitive reduction peak at -0.64 V(vs. SCE) in pH 6.50 Britton-Robinson buffer.The valus of reductions peak current reduced by the addition of BSA to the above mentioned solution.A new electrochemical determination method of bovine serum albumin was developed based on the interaction of daunorubicin hydrochloride with BSA.Furthermore,under the optimized condition,the decrease of the reduction peak …

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Redox State Of Polyaniline Nanodot And Its Coulomb Staircase Effect, Jian-Zhang Zhou, Shao-Huang Weng, Zhong-Hua Lin Aug 2009

Redox State Of Polyaniline Nanodot And Its Coulomb Staircase Effect, Jian-Zhang Zhou, Shao-Huang Weng, Zhong-Hua Lin

Journal of Electrochemistry

Polyaniline nanodot array had been fabricated in AAO template with potentiostatic method and the I~V characteristics of nanodots with different redox states were measured by conducting atomic force microscope (C-AFM) in atmosphere at room temperature. We found that only nanodots in partial oxidation state exhibit coulomb staircase in the I~V curves,while those in the full oxidation state and reduced state do not. The above phenomena were discussed preliminarily.

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Electrochemical Reduction Of Nitrobenzene In Different Ionic Liquids, Jun-Li Fan, Wei-Lin Ye, Rong Wang, Li-Qun Xu, Xia-Qin Wu Aug 2009

Electrochemical Reduction Of Nitrobenzene In Different Ionic Liquids, Jun-Li Fan, Wei-Lin Ye, Rong Wang, Li-Qun Xu, Xia-Qin Wu

Journal of Electrochemistry

Electrochemical reduction of nitrobenzene at glassy carbon electrode in different ionic liquids,such as N-methylimidazolium-p-toluene sulfonic acid ([Mim][PhSO3]) and ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate ([Bmim][PF6]) have been investigated by cyclic voltammetry. Experimental results showed that only a cathodic current peak was observed in [Mim][PhSO3],which is a diffusional controlled irreversible reaction. And two pairs of current peaks were obtained in [Bmim][PF6] in the same potential range,indicating showed that the reduction products of nitrobenzene were different in different ionic liquids.

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Electrochemical Studies On The Ionic Charge Transfer Properties Of The Oxygen Vacancy Defects In The Oxide Films Formed On Titanium, De-Sheng Kong, Hai-Yan Liu, Wen-Juan Fan, Wen-Hua Lv, Zhang-Yu Yu, Yuan-Yuan Feng Aug 2009

Electrochemical Studies On The Ionic Charge Transfer Properties Of The Oxygen Vacancy Defects In The Oxide Films Formed On Titanium, De-Sheng Kong, Hai-Yan Liu, Wen-Juan Fan, Wen-Hua Lv, Zhang-Yu Yu, Yuan-Yuan Feng

Journal of Electrochemistry

The ionic charge transfer properties of the oxygen vacancy point defects in TiO2 films formed on titanium were studied in 1.0 mol·L-1 HClO4 solution with cyclic voltammetry,potentiostatic polarization,galvanostatic reduction and capacitance measurements. The measured capacitance data were analyzed based on the Mott-Schottky equation and Einstein equation. Based on the different response times to the changes of the applied electric field between the ionic and the electronic charge transfers,the diffusion coefficient of the point defects in the anodic oxide film on titanium was estimated. It was shown that the passive potential region for titanium in 1.0 mol·L-1 …

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Composite Micro-Porous Polymer Electrolyte Of Pvdf-Hfp Modified By Mcm-48, Wei-Feng Wu, Chang-Chun Yang, Su-Jiao He, Bing-Bing Zhang, Song Xu Aug 2009

Composite Micro-Porous Polymer Electrolyte Of Pvdf-Hfp Modified By Mcm-48, Wei-Feng Wu, Chang-Chun Yang, Su-Jiao He, Bing-Bing Zhang, Song Xu

Journal of Electrochemistry

The composite micro-porous polymer electrolyte (CMPE) of PVDF-HFP modified by meso-porous molecular sieves of MCM-48 was prepared by phase-inversion process. The ionic conductivity and Li+ transference number of the polymer electrolyte were raised,respectively,by 97%(from 0.89 mS/cm to 1.75 mS/cm) and 39%(from 0.57 to 0.79),when 4%(by mass) MCM-48 was added in. Meanwhile,the crystallinity and electrochemical stability of the polymer electrolyte had not been changed by the addition of MCM-48. The charge-discharge efficiency of the button cell assembled with the composite membrane (Li/4%MCM-48-CMPE/LiFePO4) was 91% in the first cycle,and no loss of capacity was found even after 30 cycles. …

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Crystallization And Electrochemical Corrosion Behaviors Of Amorphous And Nanocrystalline Fe-Based Alloys, Xiang Li, Biao Yan, Peng Dong Aug 2009

Crystallization And Electrochemical Corrosion Behaviors Of Amorphous And Nanocrystalline Fe-Based Alloys, Xiang Li, Biao Yan, Peng Dong

Journal of Electrochemistry

In this study,amorphous Fe78Si13B9 and Fe73.5Si13.5B9Nb3Cu1 ribbons were prepared by the chill block melt-spinning process and nanocrystalline Fe73.5Si13.5B9Nb3Cu1 ribbons were obtained by annealing. The amorphous ribbons and their crystallization processes were identified by differential scanning calorimeter (DSC) and X-ray diffraction (XRD). A comparative study of the electrochemical corrosion behaviors of  Fe78Si13B9 and Fe73.5Si13.5B9Nb3Cu1 amorphous and nanocrystallized alloys was performed by linear polarization method …

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Synthesis And Characterization Of Sulfur-Carbonnanotubes As Cathode Of Lithium/Sulfur Rechargeable Battery, Rui Du, Zhong-Zhi Yuan Aug 2009

Synthesis And Characterization Of Sulfur-Carbonnanotubes As Cathode Of Lithium/Sulfur Rechargeable Battery, Rui Du, Zhong-Zhi Yuan

Journal of Electrochemistry

A carbon-containing composite was synthesized by heating element sulfur and carbon nanotubes. The sulfur-carbonnanotube composites were characterized by X-ray diffraction, SEM, Brunauer-Emmett-Teller. The electrochemical property was characterized by cyclic voltammetry,constant current charge and discharge. It was revealed that the sulfur-carbonnanotube cathode 2016-type coin cells exhibited a good electrochemical property with the initial dicharge specific capacity up to 680 mAh/g and a stable capacity approximately 500 mAh/g after 30 cycle numbers.

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Capacitor Property Of Pani/Mwcnt Electrode In Li2So4 Solution, Wen-Bo Cong, Xiao-Shu He Aug 2009

Capacitor Property Of Pani/Mwcnt Electrode In Li2So4 Solution, Wen-Bo Cong, Xiao-Shu He

Journal of Electrochemistry

Polyaniline/multi-walled carbon nanotubes (PANI/MWCNT) composites synthesized by chemical oxidation method were characterized by scanning electron microscopy (SEM),X-ray diffraction (XRD) and IR techniques. In 1mol/L Li2SO4 neutral solution,the electrochemical performance of the composites electrode was investigated by cyclic voltammetry,galvanostatic charge-discharge tests and ac impedance spectroscopy. The results showed that the composites electrode performed well in 1mol/L Li2SO4 solution,the specific capacitance reached 412F/g at 5 mA/cm2. The composites electrode possessed better capability of high current than that of PANI electrode,the specific capacitance kept at 318 F/g at 50mA/cm2 and was 77.2% of that …

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Tungstate/Pertungstate System Cathodic Indirect Oxidation To Synthesis Hydrophobic Monascus Yellow Colorant, Wen-Jian Chen, Xue-Hong Huang, Zhen Chen, Sheng-Bo Ke, You-Zhen Lin Aug 2009

Tungstate/Pertungstate System Cathodic Indirect Oxidation To Synthesis Hydrophobic Monascus Yellow Colorant, Wen-Jian Chen, Xue-Hong Huang, Zhen Chen, Sheng-Bo Ke, You-Zhen Lin

Journal of Electrochemistry

Using SBS-g-(AA/StSO3Na)/SBS-g-DMAEMA Bipolar Membrane as a separator between the cathode and anode chambers in the electrolysis cell,the optimum conditions of deoxidization of oxygen in cathode were obtained through orthogonal experiment. Then using tungstate/pertungstate as media to indirect electrooxidate hydrophobic monascus red colorant to prepare hydrophobic monascus yellow colorant in cathode. The experiment results show the average current efficiency of cathode was up to 72.39% under the following conditions:that graphite as electrode,10% sulfuric acid as anode electrolyte,0.5 g·L-1 hydrophobic monascus red colorant solution as cathode electrolyte,tungstate concentration:15 mmol/L,pH=3,flow rate of oxygen:65 cm3/min,electrolyze 2 h under the …

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Electrocatalytic Oxidation Of Glucose On Cnt/Nanocrystlline Tio2-Pt Complex Film Electrode In Ionic Liquids, Dao-Bao Chu, Long-Wu Zha, Shu-Xi Wang, Jian Wang, Ying Xiao, Yuan-Yuan Hou, Jian-Guo He, Xue-Jiao Zhang Aug 2009

Electrocatalytic Oxidation Of Glucose On Cnt/Nanocrystlline Tio2-Pt Complex Film Electrode In Ionic Liquids, Dao-Bao Chu, Long-Wu Zha, Shu-Xi Wang, Jian Wang, Ying Xiao, Yuan-Yuan Hou, Jian-Guo He, Xue-Jiao Zhang

Journal of Electrochemistry

Using ionic liquid [EMI]BF4 as the electrolyte,the electrocatalytic oxidation of glucose on carbon nanotubes/nanocrystlline TiO2 film loaded on Pt (CNT/nanoTiO2-Pt) complex film electrode was investigated by cyclic voltammetry. The results found that the CNT/nanoTiO2-Pt complex electrode had high catalytic activity to the electrochemical oxidation of glucose in ionic liquids and the oxidation potential was -0.46 V. The best effect of glucose oxidation was obtained with the volume ratio of ionic liquid to water being 3:1. The process of electrodic reaction process was concentration polarization controlled.

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Electrochemical Properties Of Ru-P/Mwcnts-Dhp/Gc Electrode, Miao-Jing Chen, Bao-Yi Lu, Wen-Jie Mei, Hong Li Aug 2009

Electrochemical Properties Of Ru-P/Mwcnts-Dhp/Gc Electrode, Miao-Jing Chen, Bao-Yi Lu, Wen-Jie Mei, Hong Li

Journal of Electrochemistry

Electrochemical properties of a novel monoruthenated porphyrin [Ru(phen)2(MPyTMPP)Cl]+ (where phen =1,10-phenanthroline,MPyTMPP =5-(3-pyridyl)-10,15,20-tris-(4-methylphenyl) porphyrin) on a multi-walled carbon nanotubes (MWCNTs) modified glassy carbon (GC) electrode with the participation of dihexadecyl phosphate (DHP) have been investigated by using cyclic voltammetry,differential pulse voltammetry,UV-Visible spectroscopy and fluorescence spectroscopy. It is found that [Ru(phen)2(MPyTMPP)Cl]+ has the ability to adsorb strongly onto the MWCNTs-DHP modified GC electrode and exhibits a pair of redox waves controlled by surface electrochemical process. DHP dispersed on the MWCNTs/GC electrode can facilitate the ruthenium complex to adsorb onto the MWCNTs-DHP surface. A new complex is generated by the …

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Ellipsometric Study On Colored Electroplating Of Cuprous Oxide On Ni Substrate, Xue-Song Feng, Jing-Lei Lei, Ai-Xiang Chen, Wan-Shan Yin, Ling-Jie Li, Sha Zheng, Hui Zhao, Shao-Yan Pan Aug 2009

Ellipsometric Study On Colored Electroplating Of Cuprous Oxide On Ni Substrate, Xue-Song Feng, Jing-Lei Lei, Ai-Xiang Chen, Wan-Shan Yin, Ling-Jie Li, Sha Zheng, Hui Zhao, Shao-Yan Pan

Journal of Electrochemistry

The colored Cu2O coating was electroplated on Ni substrate to meet the decorative requirements. Results of X-ray photoelectron spectroscopy (XPS) indicate the coating consisting of Cu2O. Images of scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) show that the Cu2O coating is smooth and uniform,and covers the Ni substrate wholly. Ellipsomtric measurements for Cu2O coatings with various electroplating time were carried out. Using a 4-layer model of "Air-Cu2O layer-interphase-Ni" ,the interphase was modeled with the graded effective medium approximation (EMA),the ellipsomtric data were deconvoluted and the Cu2O …

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Fabrication Of Polyvinyl Alcohol Arrays And The Direct Electrochemistry Of Adsorbed Cytochrome C, Yu-Hua Qin, Ruo-Kun Jia, Qing-Juan Wei, Li Ma, Xiao-Hui Guan, Nan Lv Aug 2009

Fabrication Of Polyvinyl Alcohol Arrays And The Direct Electrochemistry Of Adsorbed Cytochrome C, Yu-Hua Qin, Ruo-Kun Jia, Qing-Juan Wei, Li Ma, Xiao-Hui Guan, Nan Lv

Journal of Electrochemistry

Regular polyvinyl alcohol arrays were prepared with porous polystyrene films by a self-assembly method. Cyt c immobilized on PVA microlens arrays modified glassy carbon electrodes gave a pair of stable,well-defined and quasi-reversible cyclic voltammetric peaks at about 0.072 V (vs. Ag/AgCl) in 0.1 mol/L PBS buffer (pH = 6.89) solution. The effects of scan rate,pH and concentration of buffers on the electrochemical behaviors of Cyt c were studied in detail. The apparent heterogeneous electron transfer rate constant (k0) was evaluated to be 2.98×10-6 cm·s-1.

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51st Rocky Mountain Conference On Analytical Chemistry Jul 2009

51st Rocky Mountain Conference On Analytical Chemistry

Rocky Mountain Conference on Magnetic Resonance

Final program, abstracts, and information about the 51st annual meeting of the Rocky Mountain Conference on Analytical Chemistry, co-endorsed by the Colorado Section of the American Chemical Society and the Society for Applied Spectroscopy. Held in Snowmass, Colorado, July 19-23, 2009.

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บทบรรณาธิการ, ประมวล สุธีจารุวัฒน Jul 2009

บทบรรณาธิการ, ประมวล สุธีจารุวัฒน

Journal of Transportation and Logistics (TRANSLOG)

No abstract provided.

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การขนส่งผลิตภัณฑ์เหล็กในประเทศไทย, วิษารัช สัญญาลักษณ์, สมพงษ์ ศิริโสภณศิลป์, มาโนช โลหเตปานนท์, วิรัช หิรัญ Jul 2009

การขนส่งผลิตภัณฑ์เหล็กในประเทศไทย, วิษารัช สัญญาลักษณ์, สมพงษ์ ศิริโสภณศิลป์, มาโนช โลหเตปานนท์, วิรัช หิรัญ

Journal of Transportation and Logistics (TRANSLOG)

การวิจัยนี้เป็นผลงานส่วนหนึ่งของโครงการจัดทำแผนพัฒนาเครือข่ายการขนส่งผลิตภัณฑ์เหล็ก เพื่อสนับสนุนการยกระดับขีดความสามารถในการแข่งขันของอุตสาหกรรมเหล็ก ประจำปีงบประมาณ 2550 ของสำนักงานเศรษฐกิจอุตสาหกรรมกระทรวงอุตสาหกรรม เพื่อให้ได้มาซึ่งรูปแบบการขนส่งผลิตภัณฑ์เหล็กที่เหมาะสม การศึกษานี้ดำเนินการรวมรวบข้อมูลทั้งจากเอกสารและการสัมภาษณ์เชิงลึกจากผู้ประกอบการในกลุ่มอุตสาหกรรมเหล็กและเหล็กกล้า ทั้งผู้ผลิตและผุ้ค้ารวมทั้งหน่วยงานทที่เกี่ยวข้องเกี่ยวกับการขนส่งเหล็กในทุกรูปแบบทั้งในอดีตและปัจจุบันรวมทั้งนำเสนอแนะทางการยกระดับประสิทธิภาพการขนส่งและแนวทางการปรับปรุงการขนส่ง

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ภาพรวมลอจิสติกส์อุตสาหกรรมเหล็กของไทย, วิษารัช สัญญาลักษณ์ฤาชัย, สมพงษ์ ศิริโสภณศิลป์, สีรง ปรีชานนท์, ดวงมณี โกมารทัต Jul 2009

ภาพรวมลอจิสติกส์อุตสาหกรรมเหล็กของไทย, วิษารัช สัญญาลักษณ์ฤาชัย, สมพงษ์ ศิริโสภณศิลป์, สีรง ปรีชานนท์, ดวงมณี โกมารทัต

Journal of Transportation and Logistics (TRANSLOG)

การวิจัยนี้เป็นผลงานส่วนหนึ่งของโครงการจัดทำแผนพัฒนาเครือข่ายการขนส่งผลิตภัณฑ์เหล็ก ประจำปีงบประมาณ 2550 ของสำนักงานเศรษฐกิจอุตสาหกรรมกระทรวงอุตสาหกรรม โดยทำการศึกษาเกี่ยวกับภาพรวมลอจิสติกส์ของอุตสาหกรรมเหล็กของไทยเพื่อวิเคราะห์ศักยภาพการจัดการด้านลอจิสติกส์(Logistics) ของอุตสาหกรรมเหล็กไทย การศึกษาครั้งนี้อาศัยการเก็บข้อมูลเชิงลึกที่เกี่ยวข้องกับหลายหน่วยงานภายในบริษัทและเชื่อมโยงไปยังบรัทคู่ค้า ซึ่งสำรวจโดยใช้การสัมภาษณ์ด้วยแบบสอบถามเป็นหลัก

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