نتایج جستجو برای: ray film

تعداد نتایج: 386512  

M. Ramya, S. Ganesan,

Abstract: Different thickness of Cu2S thin films were prepared by vacuum evaporation under a pressure of 10-6 torr at an evaporation rate of 3Å /sec. Cu2S has direct band gap energy and indirect band gap energy at 1.2eV and 1.8 eV respectively. This paper presents the analysis of structural and optical properties of the Cu2S thin film by X-ray diffractometer (XRD) and UV-Vis-NIR Spectrophotomet...

Journal: :Analytical biochemistry 2010
Mitri K Khoury Ian Parker Dana W Aswad

We found that certain mid-range consumer-level digital single-lens reflex (SLR) cameras using full-frame complementary metal oxide semiconductor (CMOS) sensors outperform X-ray film in acquiring signals from immunoblots that use enhanced chemiluminescence for detection. These cameras exhibit a sensitivity comparable to X-ray film, yet they provide a 3-fold increase in linear dynamic range and s...

2008
Wenming GUO Lihong LIANG

It has become an inevitable development that X-ray digital imaging detectors replace film-screen. The imaging quality of X-ray digital detector could not reach the level of film-screen due to its unique characteristics. It is the key that to research the method of improving and optimizing the digital imaging quality. The main factors to impact X-ray digital imaging quality is inherent non-unifo...

1998
Michael G. Rossmann

“point” and “area” (originally film) detectors. The first X-ray diffraction experiment by Friedrich and Knipping [1] used film, but within the same year Bragg was using an ionization chamber mounted on a rotating arm [2]. The advantage of Bragg's X-ray detector was that it defined precisely the angle of the diffracted rays and, in general, gave more accurate intensity measurements. The advantag...

2011

AMPTEK INC. 14 DeAngelo Drive, Bedford, MA 01730-2204 U.S.A. APPLICATIONS • X-Ray Fluorescence • Thin-film Analysis • RoHS/WEEE Analysis • Teaching and Research • Art and Archaeology • Process Control • X-ray Tube Characterization FEATURES • Fundamental parameters (FP) • Analysis with or without standards • General bulk and thin-film analysis • Analyze up to 40 elements • Supports all Amptek de...

Journal: :Journal of the Medical Association of Thailand = Chotmaihet thangphaet 2009
Supakajee Saengruang-Orn Thosporn Vimolket Manus Mongkolsuk Somrat Lertmaharit Yawana Tanapat Busabong Noola Kamonwan Thungsiri Pirom Kamolratanakul

OBJECTIVE To evaluate the efficiency of quality control performance for a general x-ray machine between computed radiography (CR) and film method. MATERIAL AND METHOD CR performance as a quality control method for a general x-ray machine was compared to the film method. Two raters independently analyzed the result of quality control from both methods. Economic evaluation was performed by cost...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی استان فارس - دانشکده دندانپزشکی 1386

چکیده ندارد.

Journal: :trauma monthly 0
mohammad reza ghane trauma research center, baqiyatallah university of medical sciences, tehran, ir iran mohammad saeid rezaee-zavareh trauma research center, baqiyatallah university of medical sciences, tehran, ir iran; students’ research committee, baqiyatallah university of medical science, tehran, ir iran; trauma research center, baqiyatallah university of medical sciences, tehran, ir iran. tel/fax: +98-2181264354 mohammad kazem emami-meibodi trauma research center, baqiyatallah university of medical sciences, tehran, ir iran vahid dehghani students’ research committee, baqiyatallah university of medical science, tehran, ir iran

conclusions a clinical examination combined with a plain radiograph should be considered to improve the diagnostic precision for patients presenting with scaphoid fractures in an emergency department. in this way, both overtreatment and undertreatment of patients can be avoided. results scaphoid tubercle tenderness had a sensitivity of 95.23% and a specificity of 74.07% in the diagnosis of scap...

2013
Eric Hommema Nikki Jarrett Steve Shiflett

Chemiluminescent Western blotting is a popular protein detection method for studying proteins. The typical protocol for measuring chemiluminescent signal exposes the Western blot to laboratory-grade X-ray film, but digital imaging using a cooled-CCD camera is proving to be a more functional choice for researchers. The Thermo Scientific MYECL Imager offers digital imaging with a number of improv...

Journal: :Diseases of the chest 1956
P AMAZON E C GLUCKMAN

The value of the x-ray film survey in tuberculosis case finding has been corroborated by many studies during the past 30 years. In numerous surveys emphasis has been placed on age, sex, race, occupation, economic status etc.; other studies have shown that there is a high yield of unsuspected active pulmonary tuberculosis in admissions to general hospitals. It is the purpose of this paper to dir...

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