نتایج جستجو برای: formation interface

تعداد نتایج: 723294  

Journal: :Journal of synchrotron radiation 2001
M Kimura M Kaneko T Suzuki

An in situ observation technique by XAFS (X-ray Absorption Fine Structures) has been developed for observation of metal corrosion. XAFS spectra were obtained with a special electrochemical cell to elucidate pitting: change of concentrations and structures of ions near the interface of solution and metal. It has been successfully shown that the concentrations of Cr and Br are linearly dependent ...

Journal: :بینا 0
مژگان رضایی کنوی m rezaei kanavi, تهران- پاسداران- بوستان نهم- بیمارستان لبافی نژاد- مرکز تحقیقات چشم علیرضا فروتن ar foroutan دانشگاه علوم پزشکی ایران نیکو افسر n rahmati kamel کلینیک بصیر محسن رحمتی کامل m afsar دانشگاه علوم پزشکی ایران محمد علی جوادی ma javadi دانشگاه علوم پزشکی شهید بهشتی

purpose: to report the clinical, histopathologic, microbiologic and confocal microscopic features of candida keratitis after deep anterior lamellar keratoplasty (dalk). patients and findings: the first patient presented with asymptomatic white to cream-colored interface deposits two months after dalk. confocal scan disclosed clusters of hyper-reflective fine granular deposits in the interface w...

Hamideh Marefat Iman Sheydaii

Recent research in the area of Second Language Acquisition has proposed that bilinguals and L2 learners show syntactic indeterminacy when syntactic properties interface with other cognitive domains. Most of the research in this area has focused on the pragmatic use of syntactic properties while the investigation of compliance with a grammatical rule at syntax-related interfaces has not received...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2010
Govardhan Reddy John E Straub D Thirumalai

Amyloid-like fibrils from a number of small peptides that are unrelated by sequence adopt a cross-β-spine in which the two sheets fully interdigitate to create a dry interface. Formation of such a dry interface is usually associated with self-assembly of extended hydrophobic surfaces. Here we investigate how a dry interface is created in the process of protofilament formation in vastly differen...

2017
Jun Hong Park Atresh Sanne Yuzheng Guo Matin Amani Kehao Zhang Hema C P Movva Joshua A Robinson Ali Javey John Robertson Sanjay K Banerjee Andrew C Kummel

Integration of transition metal dichalcogenides (TMDs) into next-generation semiconductor platforms has been limited due to a lack of effective passivation techniques for defects in TMDs. The formation of an organic-inorganic van der Waals interface between a monolayer (ML) of titanyl phthalocyanine (TiOPc) and a ML of MoS2 is investigated as a defect passivation method. A strong negative charg...

2012
Wipakorn Jevasuwan Yuji Urabe Tatsuro Maeda Noriyuki Miyata Tetsuji Yasuda Hisashi Yamada Masahiko Hata Noriyuki Taoka Mitsuru Takenaka Shinichi Takagi

Interface-formation processes in atomic layer deposition (ALD) of Al₂O₃ on InGaAs surfaces were investigated using on-line Auger electron spectroscopy. Al₂O₃ ALD was carried out by repeating a cycle of Al(CH₃)₃ (trimethylaluminum, TMA) adsorption and oxidation by H₂O. The first two ALD cycles increased the Al KLL signal, whereas they did not increase the O KLL signal. Al₂O₃ bulk-film growth sta...

2000
G. Margaritondo

We report results of x-ray photoemission and cathodoluminescence spectroscopies studies of interface formation at metal-GaAs junctions. The results are interpreted by using a microscopic model of metal-semiconductor interfaces. Our low-temperature measurements and analyses show the validity of Schottky'S phenomenological description, thereby suggesting that metalinduced gap states and native de...

Journal: :The journal of physical chemistry. B 2006
Yuxiang Liu Shawn R Scully Michael D McGehee Jinsong Liu Christine K Luscombe Jean M J Fréchet Sean E Shaheen David S Ginley

The interface of planar TiO(2)/polymer photovoltaic cells was modified with two carboxylated polythiophenes having different densities of carboxylic acid groups. Both of the interface modifiers increase the photocurrent of the cells but lower the open-circuit voltage. The work function of the TiO(2), measured using a Kelvin probe, increases with increasing density of carboxylic acid groups due ...

2015
Yang Jiao Anders Hellman Yurui Fang Shiwu Gao Mikael Käll

The formation of a Schottky barrier at the metal-semiconductor interface is widely utilised in semiconductor devices. With the emerging of novel Schottky barrier based nanoelectronics, a further microscopic understanding of this interface is in high demand. Here we provide an atomistic insight into potential barrier formation and band bending by ab initio simulations and model analysis of a pro...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2004
Seiichi Nishizawa Tomoyuki Kamaishi Tomoyuki Yokobori Ryo Kato Ying-Yu Cui Takeshi Shioya Norio Teramae

Facilitated SO4(2-) transfers by hydrogen bond-forming ionophores are investigated across the nitrobenzene (NB)-water interface by using polarography with a dropping electrolyte electrode. Bis-thiourea 1, alpha,alpha'-bis(N'-p-nitrophenylthioureylene)-m-xylene, is found to significantly facilitate the transfer of the highly hydrophilic SO4(2-) whereas its counterpart, N-(p-nitrophenyl)-N'-propy...

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