نتایج جستجو برای: 1 qual2e ce

تعداد نتایج: 2778522  

2015
Su Yeon Kim Yu-Ho Won Ho Seong Jang

LiYF4:Eu nanophosphors with a single tetragonal phase are synthesized, and various strategies to enhance the Eu(3+) emission from the nanophosphors are investigated. The optimized Eu(3+) concentration is 35 mol%, and the red emission peaks due to the (5)D0 →(7)FJ (J = 1 and 2) transitions of Eu(3+) ions are further enhanced by energy transfer from a sensitizer pair of Ce(3+) and Tb(3+). The tri...

Journal: :Inorganic chemistry 2011
Thanh-Dinh Nguyen Cao-Thang Dinh Trong-On Do

Undoped and cerium doped LaCO(3)OH annular-shaped nanoarchitectures with high specific surface area have been fabricated via the thermolysis of Ce(x)La(1-x)(oleate)(3) (x = 0-20 mol %) complexes in a toluene-water system containing tert-butylamine/oleylamine. The products exhibit 400 nm-sized monodisperse annular-shaped nanoarchitectures, which are constituted of 3-5 nm-sized primary particles....

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In this study, the photocatalytic and bleaching properties of pure and doped titanium dioxide nanoparticles with 1%, 3%, 5% and 10% Ce dopant were studied using Ce(NO3)3 precursor. The results showed that the highest methylene blue degradation of the sample with 5% cerium impurity was 97% in neutral medium (pH=7) after 75 minutes. The bleaching response to wastewater treatment with 5% cerium im...

Y2Ce2O7 nano powders were synthesized via sol-gel reactions at 900 (S1), 1000 (S2) and 1100 (S3) ˚C for 4 h using yttrium acetate (C6H9O6Y.xH2O), ammonium cerium nitrate ((NH4)2Ce(NO3)6) and stearic acid (C18H36O2</s...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز 1378

سریک تریفلات ce (so3cf3)4 به عنوان یک لوئیس اسید پایدار و موثر برای تبدیلات سنتزی در محیطهای آلی و میسلی معرفی می گردد. استریفیکاسیون الکلهای مختلف با استیک اسید، کلرواستیک اسید، تری فلوئوراستیک اسید، پروپیونیک اسید، استناریک اسید و بنزوئیک اسید در حضور ce (otf)4 در شرایط محلول و بدو حلال انجام شدند، فرمیلاسیون و استیلاسیون الکلها نیز در اتیل فرمات و اتیل استات پذیرفنه است . فرمیلاسیون و استیلا...

A. Nobakht A. Safamehr, F. Fallah

A total of 288 broiler chickens (1 d old) were used in a 42-d growth trial to study the effects of chicory (Cichorium intybus) and nettle (Urtica dioica) with or without multi-enzyme on growth performance, carcass traits, and biochemical parameters. The corn-soybean based control diet and 8 experimental diets were fed to each of 3 pens of chickens (12 chickens/pen). Treatments were as follows: ...

2011
Hiroki Imagawa Shiro Oka Shinji Tanaka Ikue Noda Makoto Higashiyama Youji Sanomura Takayoshi Shishido Shigeto Yoshida Kazuaki Chayama

OBJECTIVE Real-time video capsule endoscopy (CE) with flexible spectral imaging color enhancement (FICE) improves visibility of small-bowel lesions. This article aims to clarify whether CE-FICE also improves detectability of small-bowel lesions. PATIENTS AND METHODS A total of 55 patients who underwent CE at Hiroshima University Hospital during the period November 2009 through March 2010 were...

2012
Eiji Sakai Hiroki Endo Shingo Kato Tetsuya Matsuura Wataru Tomeno Leo Taniguchi Takashi Uchiyama Yasuo Hata Eiji Yamada Hidenori Ohkubo Takuma Higrashi Kunihiro Hosono Hirokazu Takahashi Atsushi Nakajima

BACKGROUND Capsule endoscopy with flexible spectral imaging color enhancement (CE-FICE) has been reported to improve the visualization and detection of small-bowel lesions, however, its clinical usefulness is still not established. Therefore, we conducted a study to evaluate whether CE-FICE contributes to improve the detectability of small-bowel lesions by CE trainees. METHODS Four gastroente...

Journal: :The Journal of chemical physics 2010
Asha Gupta Anil Kumar M S Hegde U V Waghmare

CeO(2)-SnO(2) solid solution has been reported to possess high oxygen storage/release property which possibly originates from local structural distortion. We have performed first-principles based density functional calculations of Ce(1-x)Sn(x)O(2) structure (x=0, 0.25, 0.5, 1) to understand its structural stability in fluorite in comparison to rutile structure of the other end-member SnO(2), an...

Journal: :Menopause 2014
Joann V Pinkerton Kaijie Pan Lucy Abraham Jill Racketa Kelly A Ryan Arkadi A Chines Sebastian Mirkin

OBJECTIVE The effects of bazedoxifene (BZA)/conjugated estrogens (CE) on sleep and health-related quality of life (HRQoL) were evaluated in nonhysterectomized postmenopausal women who were enrolled in a randomized, double-blind, placebo- and active-controlled phase 3 trial. METHODS The sleep/HRQoL substudy enrolled 459 women with bothersome moderate to severe vasomotor symptoms who were rando...

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