Results 101 to 110 of about 9,149 (206)

Modeling Censored Data Using Mixture Regression Models with an Application to Cattle Production Yields [PDF]

This research develops a mixture regression model that is shown to have advantages over the classical Tobit model in model fit and predictive tests when data are generated from a two step process. Additionally, the model is shown to allow for flexibility
Belasco, Eric J., Ghosh, Sujit K.
core   +1 more source

Sintesis dan Karakterisasi Membran Elektrolit Polieter-eter Keton Tersulfonasi [PDF]

, 2007
SINTESIS DAN KARAKTERISASI MEMBRAN ELEKTROLIT POLIETER-ETER KETON TERSULFONASI. Membran elektrolit untuk aplikasi sel bahan bakar metanol langsung, Direct Methanol Fuel Cell (DMFC) berfungsi untuk menghantarkan ion (proton) dan pembatas antara anoda dan ...
Dewi, E. L. (Eniya), Handayani, S. (Sri), Purwanto, W. W. (Widodo), Soemanto, R. W. (Roekmijati)   +3 more
core  

Numerical Simulation of Double-Pore Bubble Coalescence Behavior in Direct Methanol Fuel Cells

Energies
Direct methanol fuel cells (DMFCs) offer advantages such as high energy density and ease of storage and transportation. However, carbon dioxide bubbles generated in the anode flow channels are one factor affecting cell performance.
Zemu Tian, Hongxiu Zhou, Jiahao Wang, Yu Tong, Junhao Zhu   +4 more
doaj   +1 more source

Screen printing of DMFC catalyst

, 2014
Direct Methanol Fuel Cells have been a promising source of alternative energy as the supply of conventional fuels is slowly being diminished. At the heart of this electrochemical cell a Proton Exchange Membrane laced with a catalyst creating a redox reaction.
openaire   +3 more sources

Diseño de una instalación para ensayo de pilas de combustible en condiciones atmosféricas de vuelo de un avión no tripulado [PDF]

, 2015
Después de estudiar la idoneidad de las pilas de combustible tipo PEM de hidrógeno y DMFC de metanol directo para su utilización en sistemas propulsivos de aeronaves no tripuladas (UAV), se procedió a simular sus respectivas curvas de polarización en ...
González Espasandín, Oscar, Leo Mena, Teresa de Jesus, Navarro Arevalo, Emilio, Raso García, Miguel Ángel   +3 more
core  

Nanocomposite Nafion-Silica membranes for direct methanol fuel cells [PDF]

, 2005
Commercially available proton exchange membranes such as Nafion do not meet the requirements for high power density direct methanol fuel cells, partly due to their high methanol permeability.
Dicks, A. L., Diniz da Costa, J. C., Duke, M. C., Ladewig, B. P., Lu, G., Martin, D. J., Rodriguez, J. I. C.   +6 more
core  

A fuel cell, as an alternative source of electricity [PDF]

, 2008
Práce se zabývá palivovými články, jejich principem činnosti a rozdělením. Dále je představena možnost využití zemního plynu jako paliva pro palivové články.
Peterka, Lubomír
core  

Pengaruh Komposisi PVA/Kitosan terhadap Perilaku Membran Komposit PVA/Kitosan/Grafin Oksida yang Terikat Silang Asam Sulfat [PDF]

, 2016
Membran komposit PVA/Kitosan untuk aplikasi Direct Methanol Fuel Cell (DMFC) dari PVA, Kitosan dan Grafin Oksida yang terikat silang asam sulfat telah berhasil disintesis.
Julian, J. (Johan), Santoso, E. (Eko)
core  

Improved performance of a direct methanol fuel cell by the highly-developed mesopores of the carbon nanofibers catalyst support

Carbon Resources Conversion
A prepared carbon nanofibers with mesopores (P-CNFs) by electrospinning utilizing polystyrene (PS) and polyacrylonitrile (PAN) as the pore-forming agent and carbon matrix, respectively, to obtain a thinner catalyst layer which has an enhanced reaction ...
He Gao, Hirokazu Ishitobi, Nobuyoshi Nakagawa   +2 more
doaj   +1 more source

Forecasting the Mass Activity of Platinum Anode Catalysts on Various Carbon Nanostructures in Direct Methanol Fuel Cells Using Machine Learning

ECS Advances
Anode catalyst loading in direct methanol fuel cells (DMFC) is extremely high at around 4.5 mg _PtRu cm ^−2 , which increases cost and inhibits commercialization.
Ganesan Raman
doaj   +1 more source