نتایج جستجو برای: cdin2s4 cds

تعداد نتایج: 7928  

Journal: :Electrophoresis 2000
T de Boer R A de Zeeuw G J de Jong K Ensing

A review is presented on the use of charged cyclodextrins (CDs) as chiral selectors in capillary electrophoresis (CE) for the separation of analytes in pharmaceutical analysis. An overview is given of theoretical models that have been developed for a better prediction of the enantiomeric resolution and for a better understanding of the separation mechanism. Several types of charged CDs have bee...

Journal: :Dalton transactions 2015
Chunlin Bao Guoxing Zhu Jing Yang Miaomiao Liu Rongxian Zhang Xiaoping Shen

Photoelectrochemical (PEC) water splitting is a promising route for solar energy harvesting and storage, but it has been highly limited by the performance of the semiconductor photoelectrodes. Herein, we report a small molecular amine-mediated solvothermal method for synthesizing CdS nanorods. The obtained CdS nanorods are hydrophilic and can be easily dispersed in water. Furthermore, the small...

Journal: :ACS applied materials & interfaces 2010
Miao Feng Hongbing Zhan Lei Miao

A facile route to assemble cadmium sulfide (CdS) quantum dots (QDs) uniformly on the surface of titanate nanobelts (TNBs) through electrostatic interactions is demonstrated. The photophysical properties of the resulting TNB-CdS nanostructured composite, including optical limiting properties, were studied using ultraviolet-visible absorption spectroscopy, photoluminescence spectroscopy, and the ...

Journal: :ACS nano 2010
Nishshanka N Hewa-Kasakarage Patrick Z El-Khoury Alexander N Tarnovsky Maria Kirsanova Ian Nemitz Alexander Nemchinov Mikhail Zamkov

We employ femtosecond transient absorption spectroscopy to get an insight into ultrafast processes occurring at the interface of type II ZnSe/CdS heterostructured nanocrystals fabricated via colloidal routes and comprising a barbell-like arrangement of ZnSe tips and CdS nanorods. Our study shows that resonant excitation of ZnSe tips results in an unprecedently fast transfer of excited electrons...

2017
Meishan Li Wei Ren Rong Wu Min Zhang

CdS nanowires (NWs) were fabricated through a facile low-temperature solvothermal method, following which CeO₂ nanoparticles were modified on the NWs. The ethanol sensing characteristics of pure CdS and decorated ones with different CeO₂ content were studied. It was found that the sensing performance of CdS was significantly improved after CeO₂ decoration. In particular, the 5 at% CeO₂/CdS comp...

Journal: :AMIA ... Annual Symposium proceedings. AMIA Symposium 2007
Joan S. Ash Dean F. Sittig Emily M. Campbell Kenneth P. Guappone Richard H. Dykstra

Clinical decision support systems (CDS) coupled with computerized physician/provider order entry (CPOE) can improve the quality of patient care and the efficiency of hospital operations. However, they can also produce unintended consequences. Using qualitative methods, a multidisciplinary team gathered and analyzed data about the unintended consequences of CPOE, identifying nine types, and foun...

Journal: :Physical chemistry chemical physics : PCCP 2012
Peihui Luo Chun Li Gaoquan Shi

Gold@carbon dots composite nanoparticles (Au@CDs) with ultrathin carbon dot (CD) shells of ca. 2 nm were prepared by reducing HAuCl(4) with CDs at 100 °C. By adjusting the feeding mass ratio of HAuCl(4) to CDs, the average diameters of Au@CDs can be modulated from 8 to 44 nm. The suspension of Au@CDs with an average diameter of ca. 24 nm was applied as a substrate for surface enhanced Raman sca...

2017
Shuai Han Tao Chang Haiping Zhao Huanhuan Du Shan Liu Baoshuang Wu Shenjun Qin

In this work, we present the fabrication of highly luminescent carbon dots (CDs) by a double passivation method with the assistance of Ca(OH)₂. In the reaction process, Ca2+ protects the active functional groups from overconsumption during dehydration and carbonization, and the electron-withdrawing groups on the CD surface are converted to electron-donating groups by the hydroxyl ions. As a res...

ژورنال: :جغرافیا و آمایش شهری منطقه ای 0
دکتر محمدرحیم رهنما استاد جغرافیا و برنامه ریزی شهری دانشگاه فردوسی مشهد بایزید شریفی کارشناس ارشد جغرافیا و برنامه ریزی شهری دانشگاه فردوسی مشهد

هدف اصلی این پژوهش بررسی وضعیت شاخص های راهبرد توسعۀ شهری (حکمروایی خوب، بانکی بودن، قابل زیست بودن، رقابتی بودن) در شهر اشنویه از دیدگاه سه گروه مسئولین، شهروندان و نخبگان شهری است که توسط بانک جهانی و سازمان ائتلاف شهرها پیشنهاد شده اند. روش پژوهش به کار گرفته شده توصیفی - تحلیلی است. در این راستا، 355 پرسشنامه بین شهروندان، 50 پرسشنامه بین نخبگان شهری و 50 پرسشنامه بین مسئولین و کارشناسان اد...

2000
Brian E. McCandless

Processing strategies are presented for controlling junction quality as both window and absorber layer thickness are reduced in polycrystalline superstrate CdS/CdTe thin-film solar cells. High resistance In2O3 and SnO2 oxide buffer layers improve coverage of chemical bath deposited CdS and device performance with PVD CdTe, resulting in efficiencies >13.5%. A new method of CdS and Cd1-xZnxS chem...

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