نتایج جستجو برای: پوشش tio

تعداد نتایج: 30822  

Journal: :تحقیقات نظام سلامت 0
رضا تاجیک دانشجوی دکتری، گروه مهندسی بهداشت حرفه ای، دانشکده علوم پزشکی ،دانشگاه تربیت مدرس، تهران، ایران حسن اصیلیان مهابادی . استادیار، گروه مهندسی بهداشت حرفه ای، دانشکده علوم پزشکی، دانشگاه تربیت مدرس، تهران، ایران علی خوانین دانشیار، گروه مهندسی بهداشت حرفه ای، دانشکده علوم پزشکی، دانشگاه تربیت مدرس، تهران، ایران احمد جنیدی جعفری دانشیار، گروه مهندسی بهداشت محیط، دانشکده علوم پزشکی، دانشگاه تربیت مدرس، تهران، ایران بابک عشرتی استادیار، گروه آمار و اپیدمیولوژی، دانشکده بهداشت، دانشگاه علوم پزشکی اراک، اراک، ایران اردلان سلیمانیان کارشناس ارشد، مسؤول آزمایشگاه بهداشت حرفه ای، دانشکده علوم پزشکی، دانشگاه تربیت مدرس، تهران، ایران

background: polychlorinated biphenyls (pcbs) are occupational and environmental pollutants and hazardous organic compounds that have created major environmental and occupational challenges. pcb compounds have different health effects in humans depending on sex, age, route of entry, intensity, and frequency of exposure. this study was conducted to determine the effect of microwave rays, hydrogen...

ژورنال: :مهندسی عمران مدرس 2011
محمد دلنواز بیتا آیتی حسین گنجی دوست سهراب سنجابی

چکیده– در این پژوهش کارایی دو نوع چسب اپوکسی و ضد آب برای پوششدهی نانوذرات 2رtioوروی سطح بتن برای انجام 25-500 بررسی شد. سیستم استفاده شده شامل مخزن mg/l فرایند فتوکاتالیستی و تصفیه فاضلاب سنتزی حاوی فنل در بازه غلظت با شدت تابشهای مختلف در uv-a خوراک، ناحیه هوادهی و ناحیه انجام فرایند فتوکاتالیستی بود. برای انجام فرایند از لامپهای از بتن مؤید پوشش یکنواخت edx و آنالیز sem 10 استفاده شد. تصا...

Journal: :Chemical communications 2012
Yan-Chou Lai Yu-Chen Tsai

Dye-sensitized solar cells (DSSCs) are fabricated using a novel 3C-SiC/TiO(2) nanocomposite as a photoelectrode to enhance the power conversion efficiency. Compared with a pristine nanocrystalline TiO(2) cell, a DSSC based on a 3C-SiC (0.04 wt%)/TiO(2) nanocomposite photoelectrode shows ~115% increase in power conversion efficiency.

Journal: :Chemical communications 2011
Yasuhiro Shiraishi Makoto Ikeda Daijiro Tsukamoto Shunsuke Tanaka Takayuki Hirai

TiO(2) loading Pt nanoparticles (Pt@TiO(2)) promote one-pot synthesis of imines from alcohols and amines under UV irradiation at room temperature. This is achieved via a Pt-assisted photocatalytic oxidation of alcohols and a catalytic condensation of the formed aldehydes with amines on the TiO(2) surface.

Journal: :The journal of physical chemistry. A 2009
K Manori Perera Ricardo B Metz

TiO(+)(CO(2)) is produced by reaction of laser-ablated titanium atoms with CO(2) and subsequent clustering, supersonically cooled, and its electronic spectroscopy was characterized by photofragment spectroscopy, monitoring loss of CO(2). The photodissociation spectrum consists of a vibrationally resolved band in the visible, with extensive progressions in the covalent Ti-O stretch (952 cm(-1) v...

Journal: :Chemical communications 2011
Quanjun Xiang Jiaguo Yu Mietek Jaroniec

TiO(2) films composed of flower-like TiO(2) microspheres with exposed {001} facets were synthesized by a simple one-pot hydrothermal method and exhibited tunable photocatalytic selectivity towards decomposition of azo dyes in water by modifying the surface of TiO(2) microspheres as well as by varying the degree of etching of {001} facets.

Journal: :Chemical communications 2012
Junyu Cao Yuanjian Zhang Hua Tong Peng Li Tetsuya Kako Jinhua Ye

Selective local N-doped TiO(2) electrodes were fabricated using a pulsed laser deposition method. Different from the uniform nitrogen-doping in TiO(2) electrodes showing the diminution of IPCE in the UV light region, the inner nitrogen-doped TiO(2) electrode uniquely enhanced IPCE in the UV light region significantly (up to 95% at 320 nm, 1.23 V vs. SHE).

2016
Jose M Marin Kai M Beeh Andreas Clemens Walter Castellani Lennart Schaper Dinesh Saralaya Anthony Gunstone Ricard Casamor Konstantinos Kostikas Maryam Aalamian-Mattheis

BACKGROUND Morning symptoms associated with COPD have a negative impact on patients' quality of life. Long-acting bronchodilators with rapid onset may relieve patients' symptoms. In the Symptoms and Pulmonary function in the moRnING study, we prospectively compared the rapid onset bronchodilator profile of glycopyrronium (GLY) and tiotropium (TIO) during the first few hours after dosing in pati...

2010
Seoyoung Park Yong Kwon Lee Moonju Jung Ki Heon Kim Namhyun Chung Eun-Kyung Ahn Young Lim

Evaluation of the potential hazard of man-made nanomaterials has been hampered by a limited ability to observe and measure nanoparticles in cells. In this study, different concentrations of TiO(2) nanoparticles were suspended in cell culture medium. The suspension was then sonicated and characterized by dynamic light scattering and microscopy. Cultured human-derived retinal pigment epithelial c...

2009
Ying Wang Wenzhao Jia Timothy Strout Yu Ding Yu Lei

Conductive core-sheath TiO(2)-PEDOT nanocables were prepared using electrospun TiO(2) nanofibers as template, followed by vapor phase polymerization of EDOT. Various techniques were employed to characterize the sample. The results reveal that the TiO(2) core has an average diameter of ∼78 nm while the PEDOT sheath has a uniform thickness of ∼6 nm. The as-prepared TiO(2)-PEDOT nanocables display...

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