نتایج جستجو برای: cd r

تعداد نتایج: 491169  

2017
Xiaoyong Xu Wenshuai Tang Yiting Zhou Zhijia Bao Yuanchang Su Jingguo Hu Haibo Zeng

In composite photosynthetic systems, one most primary promise is to pursue the effect coupling among light harvesting, charge transfer, and catalytic kinetics. Herein, this study designs the reduced carbon dots (r-CDs) as both photon harvesters and photoelectron donors in combination with the platinum (Pt) clusters and fabricated the function-integrated r-CD/Pt photocatalyst through a photochem...

2004
D. K. Kosma J. A. Long

Yellow foxtail (Setaria glauca L. P. Beauv) growing on a cadmium-contaminated site was sampled to determine the extent of cadmium bioaccumulation in aerial tissues and the impact of cadmium on growth and development. Water-extractable Cd concentrations in the soil ranged from 5.0 to 18.0 mg L. Aerial tissues contained elevated concentrations of Cd (16-48 μg g DW), with mean concentration ratios...

2017
Joachim Høg Mortensen Tina Manon-Jensen Michael Dam Jensen Per Hägglund Lone Gabriels Klinge Jens Kjeldsen Aleksander Krag Morten Asser Karsdal Anne-Christine Bay-Jensen

BACKGROUND Increased protease activity is a key pathological feature of inflammatory bowel disease (IBD). However, the differences in extracellular matrix remodelling (ECM) in Crohn's disease (CD) and ulcerative colitis (UC) are not well described. An increased understanding of the inflammatory processes may provide optimized disease monitoring and diagnostics. We investigated the tissue remode...

2013
Péter Pál Pach

Csikvári, Gyarmati and Sárközy asked whether there exist Ramsey type theorems for the equations a + b = cd and ab + 1 = cd in Zm for large enough m. In this paper it is proved that for any r-coloring of Zm the more general equation a1 + · · · + an = cd has a nontrivial monochromatic solution. Furthermore, an example is presented which shows that the corresponding statement does not hold for the...

2000
Kazunori Miyata Takayuki Itoh Kenji Shimada

1.はじめに CGで現実感のある画像を生成する技術は、いかにして物体を 忠実に表現するかの技術である。物体を特徴付ける要素として は、大きく分けて、物体の形状と、物体表面の色情報や光学属 性などの表面属性がある。物体の表面属性を表現する場合、一 般的には、バンプマッピングなどのさまざまなマッピング手法 がとられている。CGデザイナがマッピングに利用できる素材と しては、市販の CD-ROM やインターネット経由で入手できる素 材集、およびテクスチャ生成のプログラムから出力されるデー タなどがある。 本報告で取り扱う石畳を表現する場合、CGデザイナが路面の 敷石を1つ1つモデリングして表現することが理想ではある が、大変な労力を要するため現実的ではない。一方、石畳の写 真素材を路面にマッピングして表現することも可能であるが、 以下のような問題が生ずる。 ・テクスチャ全体として凹凸が激し...

1991
EUGENE GARFIELD

The hfarerirds Science Cimrion Index w on CD-ROM, a new specialty index launched by the Institute for Scientific Information’@, is discussed. The index contains searchable author abstracts,

Journal: :Chirality 2012
Tao Wu Xiao-Peng Zhang Cheng-Hui Li Petr Bouř Yi-Zhi Li Xiao-Zeng You

Novel copper(II) coordination compounds with chiral macrocyclic imine ligands derived from R-/S-camphor were asymmetrically synthesized and characterized with the aid of chiroptical spectroscopies. Crystal structures of both enantiomers were determined by single crystal X-ray diffraction analysis. Circular dichroism (CD) spectra were analyzed using a simplified exciton model as well as quantum ...

Journal: :international journal of environmental research 2014
a. kleckerová h. dočekalová

to examine metal content of dandelion plants in relation to environmental metal levels,concentrations of cd, hg and pb were analyzed in plant parts (leaves and roots) and soil samples from fivesites in the city of brno (czech republic), differentially impacted by pollution. soils and plants werecollected mid-april 2011. atomic absorption spectrometry was used to determine concentrations of thes...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید چمران اهواز - دانشکده علوم 1392

در این کار تحقیقاتی هدف، مطالعه ی توانایی نانوذرات تیتانیوم دی اکسید تهیه شده در حذف یون های (ii)zn و (ii)cd از محلول آبی آنها است. برای انجام آزمایش های جذب از روش مستقیم استفاده شده است. نانو ذرات تیتانیوم دی اکسید به روش سل-ژل تهیه شده اند. مشخصات این ذرات توسط الگوی پراش اشعه ایکس (xrd) ، طیف مادون قرمز(ftir) و تصویر میکروسکوپ الکترونی روبشی (sem) مشخصه یابی شد. . اثرمتغیرهای ph، مقدار جاذب...

Journal: :SAARC Journal of Agriculture 2022

The relationship between heavy metal concentrations of soil and plant (Senna auriculata) in the hills roadsides was studied. Atomic absorption spectroscopy used for determination metals such as lead (Pb), chromium (Cr), cadmium (Cd), zinc (Zn), copper (Cu), iron (Fe) (leaves flowers) samples. results showed that roadside samples were much greater than hills. It is evident concentration a are co...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید