نتایج جستجو برای: عمق نوری ذرات aod

تعداد نتایج: 41954  

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد یزد - دانشکده شیمی 1392

این مطالعه به منظور تعیین هدایت الکتریکی، ثابت های نوری و گاف نوار نوری فیلم های نازک نانوکامپوزیت pmma/ag که در آن نانوذرات با دو روش آبی و آلی تهیه شده و دو ریخت شناسی کروی و چندوجهی را دارند، انجام شده است. رفتاری که مواد مختلف در مقابل پرتوهای نور مرئی از خود نشان می دهند به عنوان خواص نوری مواد شناخته می شود. به طور کلی خواص اپتیکی هر ماده، با ثابت های اپتیکی آن ماده یعنی ثابت دی الکتریک م...

2010
Z. Obradovic

One of the main challenges of current climate research is providing Earth-wide characterization of Aerosol Optical Depth (AOD), which indicates the amount of depletion that a beam of radiation undergoes as it passes through the atmosphere. Here, a comprehensive overview will be presented of our ongoing data mining based study aimed at better understanding of spatio-temporal distribution of AOD ...

ژورنال: :نوآوری در علوم و فناوری غذایی 0

هدف از این مطالعه تولید نانوذرات چربی با استفاده از تری استئارین بود. به این ترتیب از ترکیب تری استئارین در کنار سورفاکتانت، حلال و آب برای تهیه نانوذرات چربی به روش میکروامولسیون استفاده گردید. سپس با استفاده از تکنیک پراکنش نوری ابعاد نانوذرات تولید شده اندازه گیری شد. نتایج حاصل از این تکنیک ابعادی حدود 100 نانومتر را برای ذرات نانویی نشان داد. نتایج حاصل از بررسی تاثیر سرعت به هم زدن بر اند...

2014
Jinping Tang Pucai Wang Loretta J. Mickley Xiangao Xia Hong Liao Xu Yue Li Sun Junrong Xia

Correlations between water cloud effective radius (CER) and aerosol optical depth (AOD) from the Moderate Resolution Imaging Spectroradiometer (MODIS) are examined over seven sub-regions in Eastern China for 2003e2012. Water phase cloud is defined as having a cloud top pressure greater than 800 hPa. Significant negative correlation coefficients (r 1⁄4 0.79 w 0.94) between AOD and CER are derive...

Journal: :Journal of immunology 2001
P Alard C Thompson S S Agersborg J Thatte Y Setiady E Samy K S Tung

Female (C57BL/6xA/J)F(1) mice undergoing thymectomy on day 3 after birth (d3tx) developed autoimmune ovarian disease (AOD) and autoimmune disease of the lacrimal gland. As both were prevented by normal adult CD25(+) T cells, regulatory T cell depletion is responsible for d3tx diseases. AOD began as oophoritis at 3 wk. By 4 wk, AOD progressed to ovarian atrophy with autoantibody response against...

2016
Aaron R. Naeger Pawan Gupta Bradley T. Zavodsky Kevin M. McGrath

The primary goal of this study was to generate a near-real time (NRT) aerosol optical depth (AOD) product capable of providing a comprehensive understanding of the aerosol spatial distribution over the Pacific Ocean, in order to better monitor and track the trans-Pacific transport of aerosols. Therefore, we developed a NRT product that takes advantage of observations from both low-earth orbitin...

Journal: :Environmental science. Processes & impacts 2016
Luping Ye Linchuan Fang Wenfeng Tan Yunqiang Wang Yu Huang

A GIS approach and HJ-1B images were employed to determine the effect of landscape structure on aerosol optical depth (AOD) patterns. Landscape metrics, fractal analysis and contribution analysis were proposed to quantitatively illustrate the impact of land use on AOD patterns. The high correlation between the mean AOD and landscape metrics indicates that both the landscape composition and spat...

Journal: :Addictive behaviors 2010
Elizabeth Reed Guillermo Prado Atsushi Matsumoto Hortensia Amaro

OBJECTIVE To examine differences between gay, lesbian, and bisexual (GLB) and non-GLB university students in alcohol and other drug use (AOD) and related consequences as well as the relevance of violence, perceived safety, and stress to any such differences in AOD use and related concerns. METHODS A random representative sample of university students (n=988) were recruited via email for an on...

2013
Bronwyn Myers

BACKGROUND There are racial disparities in the use of alcohol and other drug (AOD) treatment services in South Africa but little is known about the factors contributing to these disparities. This study aimed to redress this gap through identifying differences in barriers to AOD treatment use among Black African and Coloured persons from Cape Town, South Africa. The Behavioral Model of Health Se...

2013
Hu Die Zhang Lei Wang Hongbin

In this study, Aerosol Optical Depth (AOD) at 550nm from the MODIS sensor on board the Terra/Aqua satellites were compared with sun photometer (CE-318) measurements from 11 AERONET stations in China. The average correlation coefficient (R) value from the AOD product, using the Aqua-MODIS Deep Blue algorithm, in the Hexi Corridor was 0.67. The MODIS Dark Target algorithm AOD product is superior ...

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