نتایج جستجو برای: توسعه شهری cds

تعداد نتایج: 102148  

Journal: :The Analyst 2015
Abhay Sachdev P Gopinath

In the present study, a facile one-step hydrothermal treatment of coriander leaves for preparing carbon dots (CDs) has been reported. Optical and structural properties of the CDs have been extensively studied by UV-visible and fluorescence spectroscopic, microscopic (transmission electron microscopy, scanning electron microscopy) and X-ray diffraction techniques. Surface functionality and compo...

2002
Peng Zhang P.-S. Kim S. J. Naftel T. K. Sham

Electrochemically deposited CdS nanoparticles (NPs) were formed using porous silicon (PS) as a substrate/electrode. The structure, electronic behavior of the CdS NPs and the interaction between CdS-PS were systematically examined using electron microscope, X-ray diffraction and X-ray absorption fine structure (XAFS) at S K-edge and Si K-edge. The optical luminescence behavior of the nanocomposi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کردستان - دانشکده علوم پایه 1391

در این پروژه، نانوذرات نیمه رسانای zns، cds و cus، همچنین نانوکامپوزیت های cds/zns، cds/cus و zns/cus پوشش داده شده با عامل پوششی پلی وینیل پیرولیدون( pvp )با روش تجزیه گرمایی تهیه و شناسایی می شوند. در این مطالعه سعی بر آن است که با استفاده از عامل پوششی pvp نانوذراتی در اندازه های بسیار کوچک (زیر 10 نانومتر) با پایداری بالا تهیه شود. سپس مقدار انرژی باندگپ آن ها تعیین شود. همچنین با سنتز نانو...

Journal: :Journal of bacteriology 2006
Wolfgang F Fricke Henning Seedorf Anke Henne Markus Krüer Heiko Liesegang Reiner Hedderich Gerhard Gottschalk Rudolf K Thauer

Methanosphaera stadtmanae has the most restricted energy metabolism of all methanogenic archaea. This human intestinal inhabitant can generate methane only by reduction of methanol with H2 and is dependent on acetate as a carbon source. We report here the genome sequence of M. stadtmanae, which was found to be composed of 1,767,403 bp with an average G+C content of 28% and to harbor only 1,534 ...

Journal: :Dalton transactions 2014
Yunhan Shi Yajie Chen Guohui Tian Honggang Fu Kai Pan Juan Zhou Haijing Yan

In this study, sea-urchin shaped Bi2S3/CdS hierarchical heterostructures are successfully synthesized via a convenient one-pot growth rate controlled route. The product is mainly composed of Bi2S3 nanorods and CdS nanoparticles grown on their surfaces. The formation mechanism was proposed based on the evolution of morphology as a function of solvothermal time, which involves fast formation of t...

2017
Maher Khelifi Peter Tarczy-Hornoch Emily B. Devine Wanda Pratt

The use of pharmacogenomics (PGx) in clinical practice still faces challenges to fully adopt genetic information in targeting drug therapy. To incorporate genetics into clinical practice, many support the use of Pharmacogenomics Clinical Decision Support Systems (PGx-CDS) for medication prescriptions. This support was fueled by new guidelines to incorporate genetics for optimizing drug dosage a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی شاهرود - دانشکده معدن و ژئوفیزیک 1393

از مراحل مهم در اکتشاف مخازن هیدروکربونی، تهیه تصویرلرزه¬ای از ساختارهای زیرسطحی است. در اغلب موارد، مخازن هیدروکربونی در ساختارهای پیچیده زمین¬شناسی قرار گرفته¬اند که تصویرسازی این ساختارها با روش¬های متداول دشوار و گاهی غیر ممکن است. از روش¬های نوین تصویرسازی، روش¬های برانبارش صفحه¬ای است. روش سطح بازتاب مشترک با برانبارش صفحه¬ای، مقاطع با نسبت سیگنال به نوفه¬ی بالا تولید کرده که پیوستگی رخدا...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2016
Yujie Ma Xiaolin Li Zhi Yang Shusheng Xu Wei Zhang Yanjie Su Nantao Hu Weijie Lu Jie Feng Yafei Zhang

Cuprous oxide (Cu2O) is an attractive photocatalyst because of its visible-light-driven photocatalytic behavior, abundance, low toxicity, and environmental compatibility. However, its short electron diffusion length and low hole mobility result in low photocatalytic efficiency, which hinders its wider applications. Herein, we report an in situ method to introduce nitrogen-doped carbon dots (N-C...

2012
Natarajan Meghanathan Michael Terrell

We present a detailed simulation based performance study of our recently proposed strong-neighborhood based connected dominating sets (SN-CDS) for mobile ad hoc networks (MANETs). We compare the performance of SN-CDS with that of the well-known minimum connected dominating sets (MCDS) and the ID-based connected dominating sets (ID-CDS) for MANETs. We show that by computing the SN-CDS involving ...

F. S. Ghoreishi M. Samadpour V. Ahmadi,

In this paper, we present a simple method for preparation of graphene-ZnO nanocomposites (G-ZnO). The method is based on thermal treatment of the graphene oxide (GO)/ZnO paste which reduces the graphene oxide into the graphene and leads to the formation of the G-ZnO nanocomposite. The structure, morphology and optical properties of synthesized nanocomposites are characterized with XRD, FESEM, F...

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