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Articles 24631 - 24660 of 27368

Full-Text Articles in Engineering

Preparation, Characterization And Electrochemical Properties Of Nano Tio2-Cnt-Pt On Ti Substrate Complex Electrode, Dao-Bao Chu, De-Xiang Feng, Jin-Hua Zhang, Xiao-Hua Li May 2005

Preparation, Characterization And Electrochemical Properties Of Nano Tio2-Cnt-Pt On Ti Substrate Complex Electrode, Dao-Bao Chu, De-Xiang Feng, Jin-Hua Zhang, Xiao-Hua Li

Journal of Electrochemistry

The nanoTiO2-CNT-Pt on Ti substrate complex electrodes were prepared from precursor of (Ti(OEt)4) directly hydrolyzed and by cyclic voltammograms electroplating method . The XRD and SEM results showed that the nano TiO2 (anatase) particle sizes ranged 5~10 nm and the Pt nanoparticle (average size 9nm) dispersed uniformly on nanoTiO2-CNT film surface. The electrocatalytic activity of Ti/nanoTiO2-CNT-Pt electrode was investigated by cyclic voltammetry and chronopotentiogram. The results indicated that the Ti/nanoTiO2-CNT-Pt electrode exhibited very high electrocatalytic activity and stability for the electro-oxidation of methanol at room temperature. When Pt loading …

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A Comparison On Structural Sensitive Adsorption Of Sb On Au Single Crystalline Electrodes, Jia-Wei Yang, Wang-Huo Shang, Qiong Wu, Bing-Wei Mao May 2005

A Comparison On Structural Sensitive Adsorption Of Sb On Au Single Crystalline Electrodes, Jia-Wei Yang, Wang-Huo Shang, Qiong Wu, Bing-Wei Mao

Journal of Electrochemistry

We compare the behaviors of irreversible adsorption of Sb(III) and its reduction, underpotential deposition of Sbon Au(111) and Au(100) as well as mutual interactions of the processes. Based on in-situ scanning tunneling microscopic and cyclic voltammetric results, the substrate structure not only influence anion adsorptionbehavior and thus the Sb adsorption structure, but also the stability of its own structure. On Au(111) surface,the irreversibly adsorbed dense and disordered SbO+ film structure remains after reduction of the film; while on Au(100)surface, due to the coadsorption of SO42-, an ordered(2×2)structure is formed after reduction. UPD of Sb on Au(111) …

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Fabrication Of Nano Capacitor And Its Electrical Properties, Ling Liu, Qin Zhou, Neng-Qin Jia, Zhi-Yu Jiang May 2005

Fabrication Of Nano Capacitor And Its Electrical Properties, Ling Liu, Qin Zhou, Neng-Qin Jia, Zhi-Yu Jiang

Journal of Electrochemistry

A step-by-step assembling method was developed for preparing nano capacitors using anodic aluminum oxide (AAO) membrane as templates. The nano capacitor consisted of three parts: electrochemically polymerized PPy electrode/ el ectrochemically precipitated porous TiO2 separator/chemically polymerized PPy electrode, and demonstrated the charge/discharge behavior as a typical electrochemical supercapacitor with good cyclic ability.

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Electrochemical Stability Of Pva Alkaline Gel Polymer Electrolyte Membranes, Jun-Hong Wang, Jian-Min Liu, Hua-Bin Yang, Zuo-Xiang Zhou May 2005

Electrochemical Stability Of Pva Alkaline Gel Polymer Electrolyte Membranes, Jun-Hong Wang, Jian-Min Liu, Hua-Bin Yang, Zuo-Xiang Zhou

Journal of Electrochemistry

Polyvinyl alcohol (PVA) alkaline polymer gel electrolyte (GPE) membranes were successfully prepared by a solution-casting technique and their electrochemical stabilities were investigated. The electrochemical impedance spectrum (EIS) results showed that the ionic conductivity of the PVA alkaline GPE membranes first increased with the increase of KOH content, then decreased with the further increase of KOH. When the weight percentage of the KOH in the PVA alkaline GPE membrane approached to 42%, it exhibitedthe highest ionic conductivity of 2.01×10-3 S/cm at room temperature (R.T.). The X-ray diffraction (XRD) results revealed that with the increase of KOH the crystalline of the …

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A Preliminary Study Of Electrocrystallization Of Bismuth On Glassy Carbon, Min-Li Yang, Zhan-Jun Zhang May 2005

A Preliminary Study Of Electrocrystallization Of Bismuth On Glassy Carbon, Min-Li Yang, Zhan-Jun Zhang

Journal of Electrochemistry

The electrocrystallization of bismuth on glassy carbon electrodes (GCEs) from nitrate solutions was studied by cyclic voltammetry and chronoamperometry. Cyclic voltammograms exhibit a crossover between the cathodic and anodic branches, characteristic of the formation of bismuth nuclei on GCEs, and show that the bismuth electrocrystallization on GCEs is a diffusion-controlled reaction. The current transients were analyzed with the Scharifker and the Heerman equations. With the increaseof Bi3+ concentration, the non-dimensional plots leaned to the theoretical curve for 3D instantaneous nucleation and growth. The overpotential dependence of nucleation and growth mechanism was also found. With the increase of overpotential, the …

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Preparation And Characterization Of Mcm-41/Pvdf-Hfp Composite Microporous Polymer Electrolytes For Li-Ion Batteries, Zuo-Feng Chen, Yan-Xia Jiang, Quan-Chao Zhuang, Quan-Feng Dong, Shi-Gang Sun May 2005

Preparation And Characterization Of Mcm-41/Pvdf-Hfp Composite Microporous Polymer Electrolytes For Li-Ion Batteries, Zuo-Feng Chen, Yan-Xia Jiang, Quan-Chao Zhuang, Quan-Feng Dong, Shi-Gang Sun

Journal of Electrochemistry

MCM-41/vinylidine fluoride-hexafluropropene copolymer (PVdF-HFP) composite microporous polymer electrolytes were prepared with mixed solvent of N, N-Dimethylformamide (DMF) and acetone. The influence of MCM-41 and nano-SiO2 on the porous structure of the microporous polymer electrolytes were studied with SEM. The results show that MCM-41 could take the place of the plasticizer in the process of making pores, and bring the preparation of microporous membranes easily. The preliminary electrochemical tests showed that the ion conductivity of composite microporous polymer electrolyte with 10% MCM-41 was about 10-3 S cm-1, and the performance of batteries was improved. The mesoporous MCM-41selected …

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Investigation On Ru-Ti-Ir-Sn Oxide Anode Coatings For Electrolyzing Seawater, Ke Wang, Yan Han, Lei-Yuan Wang, Xiao-Ling Zhang, Yu-Pu Sun May 2005

Investigation On Ru-Ti-Ir-Sn Oxide Anode Coatings For Electrolyzing Seawater, Ke Wang, Yan Han, Lei-Yuan Wang, Xiao-Ling Zhang, Yu-Pu Sun

Journal of Electrochemistry

The anode coatings of Ru-Ti-Ir-Sn oxide with various compositions were prepared by thermal decomposition. The physical and electrochemical properties of the coatings were characterized by scanning electron microscope (SEM), energy dispersive X-ray detector (EDX), accelerated life, current efficiency, anti-Mn2+ contamination, polarization curveandcyclic voltammetry tests. The results showed thatthe anode coating with optimized formula possessed excellent overall properties for electrolyzing seawater.

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Structure And Corrosion Electrochemical Properties Of Self-Assembled (3-Mercaptopropyl) Trimethoxysilane Films On Copper Electrode, Ling Huang, Ke-Fa Lin, Fang-Zu Yang, Shu-Kai Xu, Shao-Min Zhou May 2005

Structure And Corrosion Electrochemical Properties Of Self-Assembled (3-Mercaptopropyl) Trimethoxysilane Films On Copper Electrode, Ling Huang, Ke-Fa Lin, Fang-Zu Yang, Shu-Kai Xu, Shao-Min Zhou

Journal of Electrochemistry

A self-assembled monolayer of (3-mercaptopropyl) trimethoxysilane(MPTS) was formed on a electrochemical polished copper surface electrode. The corrosion protection abilities of the monolayer were evaluated in 5% NaCl solution using electrochemical linear polarization. The effects of deposition time and silane concentration on corrosion of copper were also discussed. The surface structure of MPTS films was measured by FT-IR and SEM. It was found that the corrosion resistance of copper was reduced markedly owing to the MPTS monolayers formation on copper. The MPTS monolayer retarded the reduction of dissolved oxygen and inhibited the growth of copper oxide in the NaCl solution. FT-IR …

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Selective Electroless Copper Plating Micro-Pattern On Ceramics Without Sensitisation And Activation, Zhen-Lin Xu, Qi-Long Guo, Yi-Cheng Shen, Xiong-Chao Zhao, Yan-Ping Hong, Zhi-Jun Gu May 2005

Selective Electroless Copper Plating Micro-Pattern On Ceramics Without Sensitisation And Activation, Zhen-Lin Xu, Qi-Long Guo, Yi-Cheng Shen, Xiong-Chao Zhao, Yan-Ping Hong, Zhi-Jun Gu

Journal of Electrochemistry

The purpose of this article is to provide a new technology of electroless copper plating without palladium activation steps. By combining the technology of laser micro-etching with the new copper-plating bath, copper plating on ceramics was obtained. The experimental results showed that the solution used for copper electroless plating was stable and the copper coating obtained was bright, dense with good electrical conductivity.The line definition was about 40 μm. The electroless Cu films deposited from this system were gentle and required simple operating conditions.

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Study On Synthesis Of M-Phenoxy Benzoic Acid By Electrolysis Oxidation Method, Wei Xu, Chong-Tao Zhao May 2005

Study On Synthesis Of M-Phenoxy Benzoic Acid By Electrolysis Oxidation Method, Wei Xu, Chong-Tao Zhao

Journal of Electrochemistry

The m-phenoxy benzoic acid was synthesized by oxidation m-phenoxy toluene using Cr(Ⅵ)as oxidation media, which was prepared by electrolysis oxidation of Cr(Ⅲ)in the electrochemical bath using Nafion 417 as a diaphragm, Pb-PbO2 as an anode and Pb as cathode. The effect factors on the electrochemical oxidation of Cr(Ⅲ)to Cr(Ⅵ)in this electrolysis were studied. Furthermore, the optimal conditions for electronic synthesis of m-phenoxy benzoic acid were also discussed.

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Initial Process Of Pyrophosphate Copper Electroplating, Shao-Bin Feng, Shi-Bo Shang, Li-Ting Feng May 2005

Initial Process Of Pyrophosphate Copper Electroplating, Shao-Bin Feng, Shi-Bo Shang, Li-Ting Feng

Journal of Electrochemistry

The relationship between the type of on changes of copper electroplating potential time and the adhesion of coating layer was examined by chronopotentiometry. The conception of critical initial current density DKC was put forward. When the initial working current DKI was higher than the critical initial current, the iron electrodewas polarized to activation potential of iron surface firstly, then to the activation of the substratesurface, and finally to depositionpotentialof copper ion. The coating deposited on the active surface and had goodadhesion. On the contrary ,when DKI was lower than DKC, the coating deposits on the …

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The Preparation And Performance Of The Aqueous Matrix For Molten Carbonate Fuel Cells, Hua-Xin Lin, Mo-Jie Ceng, Bao-Lian Yi May 2005

The Preparation And Performance Of The Aqueous Matrix For Molten Carbonate Fuel Cells, Hua-Xin Lin, Mo-Jie Ceng, Bao-Lian Yi

Journal of Electrochemistry

PVA matrix of MCFC was prepared from the α-LiAlO2 powder, and polyvinylalcohol(PVA), Compared with the conventional PVB matrix, higher porosity, higher thermal weight loss and smaller maximum pore diameter were achieved for PVA matrix. Single cell was assembled with PVA matrix. At reaction gas pressure of 0.9 MPa, under reaction gas utilization of 20%, at 300 and 428.57 mA·cm-2, the cell voltage was 0.849 and 0.739 V respectively, and the output power density was 254.7 and 316.7 mW·cm-2 respectively, which are higher than those of the cell assembled with PVB matrix. During thermal cycles, the cell …

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The Synthesis, Characteristics And Performance Of Cnt Composites As Anodic Materials In Litium-Ion Battery, Quan-Feng Dong, Ming-Sen Zheng, Zhen-Cai Huang, Ming-Gang Jin, Ya-Ding Zhan, Zu-Geng Lin May 2005

The Synthesis, Characteristics And Performance Of Cnt Composites As Anodic Materials In Litium-Ion Battery, Quan-Feng Dong, Ming-Sen Zheng, Zhen-Cai Huang, Ming-Gang Jin, Ya-Ding Zhan, Zu-Geng Lin

Journal of Electrochemistry

As an anodic material for lithium ion battery the carbon nano-tube (CNT) and some compounds based on tin have ever been investigated intensively. The fruited progress has not been made yet, however. In this paper the composites of CNT and Sn/SnO2 were synthesized employing two methods and characterized by SEM and XRD. And the electrochemical performance of the composites was investigated.

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The Effect Of Oxidant On Structure And Properties Of Pan/Ptfe Conducting Composite Membrane, Chang-Yuan Tao, Jing Chen, Jun Du, Cai-Xin Sun May 2005

The Effect Of Oxidant On Structure And Properties Of Pan/Ptfe Conducting Composite Membrane, Chang-Yuan Tao, Jing Chen, Jun Du, Cai-Xin Sun

Journal of Electrochemistry

The PAn/PTFE conducting composite membrane was prepared by means of in-situ permeating chemical polymerization, with (NH4)2S2O8 and Na3VO4 being used as an oxidant respectively. The polymerization-growth behavior of the aniline by using different oxidant was compared. In addition, the oxidant effect on the structure and properties of conducting composite membrane was discussed. The results of SEM micrographs, pore size distribution and electrochemical methods suggested that using either oxidants could also induce the product with small pore size and dense pore structure. Compared with (NH4)2S2O …

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Hide It Or Unbundle It: A Comparison Of The Antitrust Investigations Against Microsoft In The U.S. And The E.U., Sue Ann Mota May 2005

Hide It Or Unbundle It: A Comparison Of The Antitrust Investigations Against Microsoft In The U.S. And The E.U., Sue Ann Mota

The University of New Hampshire Law Review

[Excerpt] "Microsoft Corporation, the world’s largest software company, has been facing antitrust scrutiny globally. In the U.S., after what’s been called the antitrust trial of the century, a consent decree was reached between Microsoft, the United States government, and several states, that closely resembled the litigated remedy that the remaining states received. Only Massachusetts appealed the litigated remedy, which was approved by the appeals court on June 30, 2004. In the United States, Microsoft was required to hide, but not remove, the Internet Explorer browser on the Windows Operating System. While antitrust litigation was ongoing in the United States against …

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Bs News May 2005

Bs News

Building Services Engineering

No abstract provided.

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Ole Miss Engineer 2005 Apr 2005

Ole Miss Engineer 2005

Ole Miss Engineer

No abstract provided.

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3d Modelling With Linear Approaches Using Geometric Primitives, Mochammad Zuliansyah Apr 2005

3d Modelling With Linear Approaches Using Geometric Primitives, Mochammad Zuliansyah

Makara Journal of Technology

In this paper, we study linear approaches for 3D model acquisition from non-calibrated images. First, the intrinsic and extrinsic camera calibration is taken into consideration. In particular, we study the use of a specific calibration primitive: the parallelepiped. Parallelepipeds are frequently present in man-made environments and naturally encode the affine structure of the scene. Any information about their euclidean structure (angles or ratios of edge lengths), possibly combined with information about camera parameters is useful to obtain the euclidean reconstruction. We propose an elegant formalism to incorporate such information, in which camera parameters are dual to parallelepiped parameters, i.e. any …

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Bs News Apr 2005

Bs News

Building Services Engineering

No abstract provided.

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Synthesis Dibenzyl Terephthalate Through Depolimerization Of Poly (Ethylene Terephthalate) As Alternative Of Waste Plastics Recycling, Suwardi Suwardi, Crys Fajar Partana, Agus Salim, Dyah Anitasari Apr 2005

Synthesis Dibenzyl Terephthalate Through Depolimerization Of Poly (Ethylene Terephthalate) As Alternative Of Waste Plastics Recycling, Suwardi Suwardi, Crys Fajar Partana, Agus Salim, Dyah Anitasari

Makara Journal of Technology

Synthesis Dibenzyl Terephthalate Through Depolimerization of Poly(ethylene terephthalate) as Alternative of Waste Plastics Recycling. Synthesis dibenzyl terephathalate were done through PET degradation by refluxing in benzyl alcohol at 145oC temperature for 20, 24, and 28 hours in the presence of zinc acetate catalyst. The result of degradation was purified by recristalization in methanol and then melting point (mp), FTIR, 1H NMR spectra, and TLC spot were determined. The melting point of product degradation for 28 hours was 98-99 oC. Based FTIR spectra known that compunds of product degradation have OH, C=O, C-O, CH, monosubstituted benzene, disubstituted benzene groups, while on …

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Dipole Magnetization Effect To Kerosene Characteristics, Mochamad Chalid, Nelson Saksono, Adiwar Adiwar, Nono Darsono Apr 2005

Dipole Magnetization Effect To Kerosene Characteristics, Mochamad Chalid, Nelson Saksono, Adiwar Adiwar, Nono Darsono

Makara Journal of Technology

Dipole Magnetization Effect to Kerosene Characteristics. Investigation of kerosene characteristics has been done by ex-situ dipole magnetization. The results show that magnetization technique can be able to influence kerosene characteristics. Polarity and viscosity of the kerosene are observed by measuring refractive index and viscosity. An hour of 4330 Gauss flux magnetic will increase refractive index from 1.447 to 1.449 and decrease the viscosity from 1.278 to 1.256. Those changing support de-clustering occurrence and polarity increment of kerosene molecule. Gas chromatography and infrared result show that those changing do not alter kerosene structure and composition.

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Study Of 2d And 3d Optical Beam Induced Voltage Imaging Using Photoresistor Sensor, Warsito Warsito, Sri Wahyu Suciyati, Susi Harnani, Akhmad Dzakwan Apr 2005

Study Of 2d And 3d Optical Beam Induced Voltage Imaging Using Photoresistor Sensor, Warsito Warsito, Sri Wahyu Suciyati, Susi Harnani, Akhmad Dzakwan

Makara Journal of Technology

Study of 2D and 3D Optical Beam Induced Voltage Imaging Using Photoresistor Sensor. This article shows a method to study OBIV (optical beam induced voltage) imagerie system, that usually employ a laser scanning microscopy system. The OBIV imagerie system developed use a photoresistor sensor as a sample and simultaneously it can be used for analyzing its inhomogeneity response. Resolution of the system is still low, about 350μm due to high value of incident light diameter. The results inform that photoresistor sensors gave an optimum response if the incident light hits the center of sensible zone.

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Flexi Radio Base Station (Rbs) Performance Analysis Of Voice And Trafic On Kota 2 Jakarta Barat Base Station Control (Bsc), Mushfar Ferdian, Fitri Yuli Zulkifli Apr 2005

Flexi Radio Base Station (Rbs) Performance Analysis Of Voice And Trafic On Kota 2 Jakarta Barat Base Station Control (Bsc), Mushfar Ferdian, Fitri Yuli Zulkifli

Makara Journal of Technology

Flexi Radio Base Station (RBS) Performance Analysis of Voice and Trafic on Kota 2 Jakarta Barat Base Station Control (BSC). The CDMA 2000 technology uses circuit switch method to handle voice traffic and packet switch method to handle data traffic between the user and RBS (Radio Base Station). These two parameters can be used to measure performance of the network generally, so it is necessary to optimize them. This paper analyze the performance of RBS by measuring its parameters such as set up failure ratio, drop ratio, and occupancy. Furthermore, the traffic increment is calculated too in order to provide …

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Water Quality Of Rivers And Ponds On Dki Jakarta, Diana Hendrawan Apr 2005

Water Quality Of Rivers And Ponds On Dki Jakarta, Diana Hendrawan

Makara Journal of Technology

Water Quality of Rivers and Ponds on DKI Jakarta. Thirteen big rivers, some small rivers, and 40 ponds spread over districts at Jakarta city are potential to support human being life. As the population is growing and the usage of stream water is increasing, the condition and quality of rivers and ponds are changing. Crowd housing can affect rivers and ponds pollution, as the people awareness about clean and healthy environment is less. Stream water pollution assessment can be done by counting the effect of pollutant to life of stream water organisms. This assessment unit could be classified into physics, …

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Time Domain Characterization Of 1-2 Ghz Circular-Ended Bowtie Antenna Using Normalizad Impulse Response, Joko Suryana, Andriyan B. Suksmono, Tati R. Mengko Apr 2005

Time Domain Characterization Of 1-2 Ghz Circular-Ended Bowtie Antenna Using Normalizad Impulse Response, Joko Suryana, Andriyan B. Suksmono, Tati R. Mengko

Makara Journal of Technology

Time Domain Characterization of 1-2 GHz Circular-ended Bowtie Antenna Using Normalizad Impulse Response. Frequency domain analysis is a powerful and compact tool for characterizing the antenna parameters such as gain, radiation pattern and the impedance as a function of frequency. However, if time or space is a major concern, such as in the GPR appication, the time domain analysis would be a very important tool due to their unique capability for determining the echo delay and range profile of target image. In this paper, we will describe the classical theory of system characterization in time domain, and then also propose …

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Measurement Of Velocity Distribution For Flow Through A Bileaflet Valve Using Color-Coded Digital Particle Tracking Velocimetry, Tienfuan Kerh, Yen-Ming Chen, I Tsou Mar 2005

Measurement Of Velocity Distribution For Flow Through A Bileaflet Valve Using Color-Coded Digital Particle Tracking Velocimetry, Tienfuan Kerh, Yen-Ming Chen, I Tsou

Journal of Marine Science and Technology–Taiwan

An experimental method, the so-called color-coded Digital Particle Tracking Velocimetry system was set up in this study to investigate viscous flow through an artificial bileaflet valve with three different opening angles, 5°, 30°, and 45°, respectively. An oscilloscope that generated stable wave speed was taken to calibrate measuring result of the equipment. Besides, a fully developed pipe flow case was used to check the reliability of experimental system, and a statistical t-test was performed to further enhance the comparison of analytical solution and measurement. From the details of randomly distributed velocities, interpolated velocity components, and velocity profiles for the studied …

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Simulation And Assessment Of Air Impingement Cooling On Squared Pin-Fin Heat Sinks Applied In Personal Computers, Hwa-Chong Tien, Wei-Dong Huang Mar 2005

Simulation And Assessment Of Air Impingement Cooling On Squared Pin-Fin Heat Sinks Applied In Personal Computers, Hwa-Chong Tien, Wei-Dong Huang

Journal of Marine Science and Technology–Taiwan

The feasibility and effectiveness of air impingement cooling on pin-fin heat sinks applied in personal computers (PC) were investigated numerically in this study. The effects of fin height, fin width, base plate thickness of the heat sink, and ratio of the vertical spacing between the nozzle and the heat sink to jet diameter (z/D) were discussed in detail. For a PC with a P4, 2.8 GHz, 68.4 W CPU, it was found that the cooling effect by using air impingement on a heat sink with z/D = 4 and fin width 4.13 mm for the jet Reynolds number (Re) between …

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A Water Station Model With Fuzzy C-Means Algorithm To Promote The Ability Of Water Distribution Systems, Hong-Min Shau, Wen-Chih Huang, Bi-Liang Lin, Jui-Min Hsiao Mar 2005

A Water Station Model With Fuzzy C-Means Algorithm To Promote The Ability Of Water Distribution Systems, Hong-Min Shau, Wen-Chih Huang, Bi-Liang Lin, Jui-Min Hsiao

Journal of Marine Science and Technology–Taiwan

A water station model will simulate the performance of a water distribution system for a given station location and quantity patterns in order to analyze present population distribution in the overall region, establish a reasonable local sample for each district network and obtain the optimal solution of the water supply stations. To establish a local sample, this model uses the Fuzzy C-Means algorithm (FCM algorithm) of the fuzzy clustering method. The sites have been modified with the mobile method so that the group points can be located at places nearest to the roadside in order to achieve the minimum cost. …

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The Estimation Of The Initial Number Of Berths In A Port System Based On Cost Function, Wen-Chih Huang, Sheng-Chieh Wu Mar 2005

The Estimation Of The Initial Number Of Berths In A Port System Based On Cost Function, Wen-Chih Huang, Sheng-Chieh Wu

Journal of Marine Science and Technology–Taiwan

The process of optimizing a port queuing system, from a management perspective, is becoming more and more complicated. If we can find a way to measure the required minimum number and initial number of berths in a port system, and arrive at an optimal solution, we can save time. In this study, we have used many evaluation indexes, including cost functions, to estimate the initial number of berths for a port queuing system. According to our research results, we were able to estimate the initial number of berths (N0) for a port queuing system by using the equation No = …

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Bs News Mar 2005

Bs News

Building Services Engineering

No abstract provided.

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