نتایج جستجو برای: pa thin layer

تعداد نتایج: 419876  

2011
Chien-Hsin Huang Chien-Hsing Lee Tsung-Min Hsieh Li-Chi Tsao Shaoyi Wu Jhyy-Cheng Liou Ming-Yi Wang Li-Che Chen Ming-Chuen Yip Weileun Fang

This study reports a CMOS-MEMS condenser microphone implemented using the standard thin film stacking of 0.35 μm UMC CMOS 3.3/5.0 V logic process, and followed by post-CMOS micromachining steps without introducing any special materials. The corrugated diaphragm for the microphone is designed and implemented using the metal layer to reduce the influence of thin film residual stresses. Moreover, ...

Journal: :Desalination 2021

In this study, novel thin-film nanocomposite (TFN) membranes were developed by incorporating graphene oxide (GO) and Aquaporin Z (AqpZ) reconstituting nanostructure (AQN) into the polyamide (PA) active layer to improve forward osmosis (FO) performances of PA TFN membranes. First, AQN loading in was optimized, followed GO addition at various loadings until optimal FO process performance attained...

In this research work, silica nano-porous thin films were deposited on glass substrates by layer by layer method. The thin films were calcinated at various calcination temperatures (200, 300, 400, and 500 °C). The morphology, surface characteristics, surface roughness and hydrophilic properties of the thin films were investigated by field emission scanning electron microscopy, attenuated total ...

بقائی نژاد, مجید, حاجی بدلی, عسگر, فرزی, غلامعلی,

In this research, Schottky diode with Al-PANI/MWCNT-Au structure was fabricated using spin coating of composite polymer and physical vapor deposition of metals. For this purpose, a thin layer of gold was coated on glass and then composite of polyaniline/multi-walled carbon nanotube was synthesized and spin-coated on gold layer. Finally, a thin layer of aluminum was coated on polymer layer. The ...

Journal: :Separation and Purification Technology 2021

Thin film composite (TFC) membranes easily suffer from fouling induced by oil and other pollutants during forward osmosis (FO) due to the relatively hydrophobic chemistry rough structure of polyamide (PA). To achieve comprehensive anti-fouling properties, poly(2-methacryloyloxyethyl phosphorylcholine-co-2-aminoethyl methacrylate hydrochloride) (MPC-co-AEMA) was immobilized on top a polyketone (...

2003
J. H. P. Tyman

phy 665: 243. Junk GA, Richard JJ, Grieser MD et al. (1974) Use of Macroreticular resins in the analysis of water for trace organic contaminants. Journal of Chromatography 99: 745. Puig D and BarceloH D (1995) Off-line and on-line solidphase extraction followed by liquid chromatography for the determination of priority phenols in natural waters. Chromatographia 40: 435. Puig D and BarceloH D (1...

2003
P. E. Wall

Synthetic dyes comprise a large group of organic, organic salt and organometallic compounds which number in the thousands. Most individual dyes are assigned colour index (CI) numbers which helps to identify structure and properties as well as identity where a series of names have been used by the manufacturers for the same dye. Pigments are also listed and can be either organic or inorganic in ...

Journal: :Journal of chromatographic science 2008
Monika Waksmundzka-Hajnos

داریوش فتحی, , داود آقا علی‌گل, , علی باقی‌زاده, ,

 In this article, we investigate the redistribution of implanted As+ ion and effect of it on the rate of oxide growth during steam oxidation of Si wafers at 900oC. Our results show that a highly enriched, thin layer of Arsenic forms at the interface between the oxide and the underlying Si. Also, the oxidation rate was found to increase depending on the depth distribution and dose of the implant...

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