study of blueshift of optical band gap in zinc oxide (zno) nanoparticles

study of blueshift of optical band gap in zinc oxide (zno) nanoparticles

study of blueshift of optical band gap in zinc oxide (zno) nanoparticles

... Study of blueshift of optical band gap in zinc oxide (ZnO) nanoparticles prepared by low-temperature wet chemical method M.K. Debanath, S. Karmakar n Department of Instrumentation ... absorption Blueshift Optical band gap abstract We report synthesis of zinc oxide (ZnO) nanoparticles via wet chemical method using molar solutions of zinc nitr...

Ngày tải lên: 06/05/2014, 13:26

4 419 0
Báo cáo "The role of color luminescence centers Mn, Cu, Co in the semicondutors with wide band gap ZnS, ZnO and their applications " pptx

Báo cáo "The role of color luminescence centers Mn, Cu, Co in the semicondutors with wide band gap ZnS, ZnO and their applications " pptx

... When doping Cu, Mn in ZnS and Co in ZnO, the self-activated luminescence bands characterized by vacancies of zinc and oxygen are extinguished or their intensities decrease. In PL spectra of ZnS:Cu, ... is greater than that of the blue band. As increasing the concentration of Cu, the intensity of the blue band decreases while the intensity of the green band increa...

Ngày tải lên: 22/03/2014, 11:20

7 466 0
 Báo cáo y học: "The epidemiology of medical emergency contacts outside hospitals in Norway - a prospective population based study"

Báo cáo y học: "The epidemiology of medical emergency contacts outside hospitals in Norway - a prospective population based study"

... 4 000 inhabitants found an incidence of 27 medical emergencies per 1 000 inhabitants per year [7]. However, the definition of an emergency was wider in this study than the classification of a ... parts of the health care system and continued until October 2008. To secure a uniform recording of the variables in the AMIS program, a meeting between the persons in charge of th...

Ngày tải lên: 25/10/2012, 09:56

9 785 0
 Báo cáo y học: "Comparative study of control selection in a national population -based case-control study: Estimating risk of smoking on cancer deaths in Chinese men"

Báo cáo y học: "Comparative study of control selection in a national population -based case-control study: Estimating risk of smoking on cancer deaths in Chinese men"

... used in this study, as in clinical trials, 7–10 to evaluate the equiva- lence of the two case-control studies in assessing the risk of cancer deaths due to smoking. We first defined a range of ... assessment of smoking habits in the control group, 1 however, insisting on a dead control group violates the study base principle, since the base consists of living sub- j...

Ngày tải lên: 26/10/2012, 09:48

9 533 1
Báo cáo y học: "Comparative study of serum Na+ and K+ levels in senile cataract patients and normal individuals"

Báo cáo y học: "Comparative study of serum Na+ and K+ levels in senile cataract patients and normal individuals"

... Department of Biochemistry and Nutrition in Iran University of Medical Sciences. He is interested in study of nutrition and trace elements in human blood. Manuchehr Imamian obtained BSc in Chemistry ... Review of Nutrition, 1990;10:233- 54. 7. Minassian DC, Mehra V. Blinded by cataract: Each year projection from the first epidemiological study of incidence of cata...

Ngày tải lên: 03/11/2012, 09:49

5 611 1
Experimental investigations and CFD study of temperature distribution during oscillating combustion in a crucible furnace

Experimental investigations and CFD study of temperature distribution during oscillating combustion in a crucible furnace

... Engineering, AVN Institute of Engineering & Technology, A.P., India. 2 Department of Mechanical Engineering, PIRM Engineering College, A.P., India. 3 Department of Mechanical Engineering, ... Ph.D candidate in the Department of Mechanical Engineering, Osmania University. He obtained his Bachelor’s degree in Mechanical Engineering from Institution of Engineers (India) in...

Ngày tải lên: 05/09/2013, 14:59

14 590 1
A STUDY ON EFFECTIVENESS OF APPLICATION INFORMATION TECHNOLOGY TOOLS IN TEACHING ENGLISH FOR IT VOCABULARY FOR SECOND YEAR STUDENTS AT VIETNAM KOREA INDUSTRIAL TECHNOLOGY COLLEGE

A STUDY ON EFFECTIVENESS OF APPLICATION INFORMATION TECHNOLOGY TOOLS IN TEACHING ENGLISH FOR IT VOCABULARY FOR SECOND YEAR STUDENTS AT VIETNAM KOREA INDUSTRIAL TECHNOLOGY COLLEGE

... employment of Website-based activities in ESP as well as in General English teaching and learning. 7. Design of the Study The study consists of three main parts: Part one ‘Introduction’ introduces ... Language Learning (CALL) is defined as ‘the search for and study of applications of the computer in language teaching and learning’ Among the concerns often raised in...

Ngày tải lên: 07/09/2013, 13:01

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A STUDY OF LINGUISTIC FEATURES OF NEWS ITEMS ON BIRD FLU IN ENGLISH ELECTRONIC NEWSPAPERS

A STUDY OF LINGUISTIC FEATURES OF NEWS ITEMS ON BIRD FLU IN ENGLISH ELECTRONIC NEWSPAPERS

... better understanding of the rest of the study. An investigation of the linguistic features of news items in newspapers -similar to any other investigation- needs a definition of what is to be ... in terms of lexical features, syntactic features and cohesive devices. In spite of various means of publishing this kind of news items, our scope of investigation is lim...

Ngày tải lên: 26/11/2013, 12:41

109 747 0
A study of verbs of matching in english and their vietnamese translational equivalents

A study of verbs of matching in english and their vietnamese translational equivalents

... 4.4. DISCUSSION OF FINDINGS Studying the semantic features of English matching verbs, we can see that they have similar meaning in matching something, someone together, but in particular contexts ... having the highest frequency of occurrence in the terms of denoting the most various meaning of relationship or suiting process. They have a wide range of meanings. The m...

Ngày tải lên: 26/11/2013, 13:18

13 894 0
A study of opening conversation on the phone in english and vietnamese

A study of opening conversation on the phone in english and vietnamese

... LIMITATIONS OF THE STUDY In spite of the fact that we have tried our best in finding materials and investing our efforts, due to the lack of time for research and the limited knowledge of the ... in ways of speaking. He stated that the most important point to consider in studying and learning about gender specific speech styles is that gender distinctions are built i...

Ngày tải lên: 26/11/2013, 13:22

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