نتایج جستجو برای: membrane technology

تعداد نتایج: 850384  

ژورنال: علوم آب و خاک 2007
آقافخر میرلوحی, , عبدالمجید رضایی, , مجتبی خیام نکویی, , مهدیه پارسائیان, ,

To determine the role of endophytes in conferring valuable physiological characteristics on and induction inducing cold tolerance in two species of festuca, an experiment was done at Isfahan University of Technology in 2002. Endophyte-infected and non-infected clones from two genotypes of tall fescue and one meadow fescue were prepared and coded 75,83 and 60 respectively. The clones were expose...

Nowadays, hydrogen and methanol are attractive prospects because of lower emission compared to the other energy sources and their special application in fuel cell technology, which are now widely regarded as key energy solution for the 21st century. These two chemicals also can be utilized in transportation, distributed heat and power generation and energy storage systems. In this study, a nove...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده مدیریت و اقتصاد 1391

abstract nowadays, industries cannot play a crucial role in national and international competitions. the tourism industry is no exception. tourism industry development as the most important economic sector and income generation is one of the key challenges of economic development in the world. therefore, countries were successful that take advantage of the capabilities of tourism sector using ...

The proton exchange membrane (PEMFC) fuel cell represents the energy of the future, in parallel with hydrogen. However, this technology must meet many technical challenges related to performance and durability before being sold on a large scale. It is well known that these challenges are closely linked to water management. This paper develops and implements a model of PEM fuel for simulation to...

غلامی, میترا, محمدی, حامد, مختاری, سید احمد,

Background and Objective: Arsenic (As) is a highly toxic metalloid found in ground and surface waters. Arsenic contamination in drinking water leads to harmful effects on human health. In this study, the efficacy of Reverse Osmosis (RO) membrane technology was evaluated for arsenic removal from drinking water. Materials and Methods: This experimental study was carried out on RO membrane spiral-...

Journal: :Journal of Membrane Science 2021

Membrane fouling, which is a key obstacle in implementing membrane technology, has been studied extensively for aqueous feeds. With increasing interests organic solvent applications, corresponding effort on understanding fouling warranted. This study employs molecular dynamics simulations to unveil the mechanisms underlying different adsorption behaviors of dextran onto polyacrylonitrile (PAN) ...

Journal: :International Journal of Hydrogen Energy 2022

Inkjet printing is a versatile, contactless and accurate material deposition technology. The present work focused on developing innovative strategies for inkjet of Catalyst-Coated Membranes (CCM) by performing Additive Manufacturing (AM) applied to Polymer Electrolyte Membrane Fuel Cells (PEMFC), without resorting intermediate substrates. Three different approaches AM are presented discussed: a...

2012
Petr Mikulášek Jiří Cuhorka

Membrane science and technology has led to significant innovation in both processes and products over the last few decades, offering interesting opportunities in the design, rational‐ ization, and optimization of innovative production processes. The most interesting develop‐ ment for industrial membrane technology depends on the capability to integrate various membrane operations in the same in...

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