نتایج جستجو برای: photocatalytic evaluation indexes

تعداد نتایج: 859581  

2011
Qi Lv

To investigate the sustainable development ability of provincial economies, the point is to build a comprehensive evaluation system. Most previous works for this task are based on principal component analysis (PCA) where the outputted principal economic indexes are used for evaluation. However, PCA is unable to handle the missing data (i.e. parts of indexes are unknown) which is a frequent case...

2010
Wei Shan Hengwen Liu Yichao Pan Hengqing Tong

A quantitative method to evaluate social risk using structural equation model (SEM) is developed. Evaluation of social risk is the essential step in early warning of social risk. On the basic of the society stability, a scientific and applicable index system of social risk is put forward, which includes 6 first-level indexes and 40 second-level indexes. Based on these indexes and relationships ...

Journal: :مدیریت اطلاعات سلامت 0
امیر اشکان نصیر ی پور . استادیار، مدیریت خدمات بهداشتی درمانی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران. تهران، ایران. انیس عباسی کارشناس ارشد، مدیریت خدمات بهداشتی درمانی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، تهران، ایران شهرام توفیقی دانشیار، مدیریت خدمات بهداشتی درمانی، دانشگاه علوم پزشکی بقیه الله، تهران، ایران. ناصر بهنام پور کارشناس ارشد، آمار حیاتی، دانشگاه علوم پزشکی گلستان، گرگان، ایران. محمودرضا گوهری استادیار، آمار حیاتی، دانشگاه علوم پزشکی تهران، تهران، ایران.

introduction: to promote the processes of providing medical services, patient's rights and establishing uniformity in treatment policy, the evaluation quality indexes were communicated to all general hospitals in 2002. this study evaluates the implementation of managed care guideline before their communication as evaluation quality indexes of hospitals and their relationship with communication ...

2007
Xukan Xu Yadong Jiang Zheng Shi

Selecting ERP software is a key strategy for enterprises to fully succeed in ERP practice. In this paper, the problem of Chinese medium-sized and small enterprises software selection is a lack of scientific and reliable choosing method, which is mentioned firstly. By combining the features of medium-sized and small enterprises, a special ERP software valuation index system is established based ...

2014
Gang Liu Wei Wang Donghui Ma Jingyu Su

Based on unascertained measurement theory, a comprehensive evaluation method to propose the vulnerability of regional geological disasters was presented in this paper. The function of unascertained measure of all evaluation indexes was established, the weights for indexes was calculated by entropy weight theory, and a result of the vulnerability of regional geological disasters has been carried...

2010
Vojka Žunič

It is known that TiO2 exhibits good photocatalytic properties which could be used in various commercial applications such as water and air purification or photo-induced biodegradation of microbes. TiO2 occurs in nature in the form of three crystal polymorphs: anatase, brookite and rutile. For photocatalytic applications only anatase and rutile are of interest, however anatase shows greater phot...

Journal: :Chemical communications 2013
Meichen Guo Liping Li Haifeng Lin Ying Zuo Xinsong Huang Guangshe Li

A novel heterostructure was first synthesized by directly depositing photocatalytic inert ZnO2 onto facet {201} of brookite nanorods. The heterostructure thus obtained was found to show a superior photocatalytic activity under UV-light irradiation. The exceptional photocatalytic performance was due to the band-structure match between ZnO2 and brookite as well as synergic charge accumulation by ...

2004
Matteo Pasquali Francesco Santarelli John F. Porter

Radiation absorption at the surjace of catalytic particles is the initial step of photocatalytic oxidation reactions currently considered for their potential effectiueness in the treatment of polluted water with traces of highly toxic organics. Owing to the presence of catalyst particles within the fluid phase, the radiation field within a photocatalytic reactor results from the absorption and ...

2014
Richard J. Gildea David G. Waterman James M. Parkhurst Danny Axford Geoff Sutton David I. Stuart Nicholas K. Sauter Gwyndaf Evans Graeme Winter

A new indexing method is presented which is capable of indexing multiple crystal lattices from narrow wedges of diffraction data. The method takes advantage of a simplification of Fourier transform-based methods that is applicable when the unit-cell dimensions are known a priori. The efficacy of this method is demonstrated with both semi-synthetic multi-lattice data and real multi-lattice data ...

2016
Ning Zhang Da Chen Feng Niu Sen Wang Laishun Qin Yuexiang Huang

To investigate the effect of Gd doping on photocatalytic activity of BiFeO3 (BFO), Gd-doped BFO nanoparticles containing different Gd doping contents (Bi(1-x)GdxFeO3, x = 0.00, 0.01, 0.03, 0.05) were synthesized using a facile sol-gel route. The obtained products were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectra,...

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