نتایج جستجو برای: مدل دائمیموقت pt

تعداد نتایج: 166425  

2002
S. R. Brankovic N. S. Marinkovic Sergio Trasatti

Carbon monoxide oxidation on bare and Pt-modified ruthenium surfaces with the (101̄0) and (0001) orientations was investigated with cyclic voltammetry, scanning-tunneling microscopy and in situ Fourier transform infrared spectroscopy. Facile oxidation kinetics of CO on Ru(101̄0) are observed, in contrast with a slow reaction on Ru(0001). Scanning tunneling microscopy (STM) measurements confirmed ...

2014
Carol A. Oatis Wenjun Li Jessica M. DiRusso Mindy J. Hoover Katherine K. Johnston Monika K. Butz Amy L. Phillips Kimberly M. Nanovic Elizabeth C. Cummings Milagros C. Rosal David C. Ayers Patricia D. Franklin

OBJECTIVE Prevalence of total knee replacement (TKR) is large and growing but functional outcomes are variable. Physical therapy (PT) is integral to functional recovery following TKR but little is known about the quantity or content of PT delivered. Purposes of this study were to describe the amount and exercise content of PT provided in the terminal episode of PT care following TKR and to exam...

Objective: In this study, we aimed to investigate the effect of Music Therapy (MT) along with Play Therapy (PT) on increasing appropriate Social Behaviors (SBs) and decreasing inappropriate stereotyped behaviors of children with autism. Methods: This is an experimental study, and we used pre-test and post-test control group design to analyze the data. The study sample included 30 children with...

2017
Zeyu Li Qiuming Gao Hang Zhang Weiqian Tian Yanli Tan Weiwei Qian Zhengping Liu

A novel kind of Pt/N-rGO hybrid possessing of low content 5.31 wt.% Pt anchored on the surface of nitrogen doped reduced graphene oxide (N-rGO) evenly was prepared. The Pt has uniformed 2.8 nm diameter and exposed (111) crystal planes; meanwhile, the N works as the bridge between Pt and rGO with the Pt-N and N-C chemical bonds in Pt/N-rGO. The Pt/N-rGO material has a very high electrocatalytic ...

Journal: :Nanoscale 2014
Gengtao Fu Xian Jiang Mingxing Gong Yu Chen Yawen Tang Jun Lin Tianhong Lu

The chemical functionalization of platinum (Pt) nanostructures is becoming a new trend in electrocatalysts designs. Meanwhile, highly branched Pt nanostructures are highly exciting electrocatalysts with high activity and stability owing to their specific physical and chemical properties. In this work, the polyallylamine (PAH) functionalized Pt nanolance assemblies (Pt NLAs) have been successful...

Journal: :Stroke 2013
Asako Nakamura Tetsuro Ago Masahiro Kamouchi Jun Hata Ryu Matsuo Junya Kuroda Takahiro Kuwashiro Hiroshi Sugimori Takanari Kitazono

BACKGROUND AND PURPOSE The relationship between the intensity of anticoagulation at the onset of acute cardioembolic stroke and clinical outcome after stroke is unclear. Here, we elucidated the relationship between prothrombin time-international normalized ratio (PT-INR) values on admission and clinical outcomes in patients with acute cardioembolic stroke. METHODS A total of 602 patients from...

Journal: :Nanoscale 2015
Dandan Song Peng Cui Xing Zhao Meicheng Li Lihua Chu Tianyue Wang Bing Jiang

A tungsten trioxide (WO₃) nanoplate array is fabricated directly on the FTO/glass substrate and used as a platinum (Pt) nanoscale supporter for a highly efficient and low Pt-consumption counter electrode (CE) in dye-sensitized solar cells (DSCs). A Pt/WO₃ composite structure, with Pt nanoparticles having a diameter of 2-3 nm, increases the electrochemical catalytic activity in catalyzing the re...

2015
P. Kanta Rao Jose L. Contreras

The effect of transition metal doping on Pt/Al2O3 catalyst used in propane dehydrogenation reaction at 500 ̊C was studied. The preparation methods investigated were sequential impregnation (Pt followed by the 2 metal or the 2 metal followed by Pt) and co-impregnation. The metal contents of these catalysts were fixed as the weight ratio of Pt per the 2 metal of around 0.075. These catalysts were ...

2015
Fengyan Wang Meng Li Bing Wang Jiangyan Zhang Yongqiang Cheng Libing Liu Fengting Lv Shu Wang

In this work, four water-soluble polythiophene derivatives (PT, PT-DDA, PT-ADA, and PT-ADA-PPR) with different pendant moieties were synthesized via oxidative copolymerization by FeCl3. By increasing the hydrophobic ability of side chain moieties, there is a gradually blue shift for the maximum absorption wavelength and red shift for the maximum emission wavelength, a reducing trend for fluores...

2013
John Fennell Dongsheng He Anicetus Muche Tanyi Andrew J. Logsdail Roy L. Johnston Z. Y. Li Sarah L. Horswell

A method for the preparation of smooth deposits of Pt on Au nanorods is described, involving sequential deposition steps with selective blocking of surface sites that reduces Pt-on-Pt deposition. The Au-Pt nanorods prepared by this method have higher long-term stability than those prepared by standard Pt deposition. Electrochemical data show that the resulting structure has more extended region...

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