نتایج جستجو برای: atomic number

تعداد نتایج: 1250024  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم 1372

a simple, sensitive and selective method for solvent extraction and spectrophotemetric determination of lanthanum (ii) europium (iii), and cerium (iii) is described , the rare earth metals are extracted into chloroform solution of n-phenylbenzohydroxamic acid (pbha) at ph 9-10 various parameters are studied to optimize the extraction conditions. the molar absorptivity is found to increase from ...

Journal: :Linguistic Inquiry 2011

Journal: :iranian journal of radiation research 0
m. navvabpour department of radiation technology, paramedical sciences faculty, shahid beheshti university of medical sciences, tehran, iran h. moladoust medical physics, faculty of medicine, guilan university of medical sciences, rasht, iran n. navvabpour mineral medicinal chemistry, imam khomeini international university, mineral chemistry department, qazvin, iran

background: in addition to determining the exact tumor location and its geometric features, an increase of the effective tumor atomic number will enhances the chance in treating the tumoral cells under suitable radiation. in the present study, we assessed metrezoate-labeled gallium transmission in burkett lymphatic cells. materials and methods: human burkitt lymphatic cells were grown in cultur...

Journal: :asia oceania journal of nuclear medicine and biology 0
nobuhiro yada department of radiology, shimane university hospital, izumo, japan hideo onishi biological systems sciences program, graduate school of comprehensive scientific research, prefectural university of hiroshima, hiroshima, japan

objective: in this study, we aimed to validate the accuracy of computed tomography-based attenuation correction (ctac) using the bilinear scaling method.methods: the measured attenuation coefficient (μm) was compared to a theoretical attenuation coefficient (μt ) using four different ct scanners and an rmi 467 phantom. the effective energy of the ct beam x-rays was calculated, using the aluminu...

Journal: :The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science 1917

Journal: :Physical Review Letters 1970

Journal: :Physical Review Letters 1961

2009
Shou-Pu Wan Mark G Raizen Qian Niu

We analyse the conditions for producing atomic number states in a one-dimensional optical box using the Bethe ansatz method. This approach provides a general framework, enabling the study of number state production over a wide range of realistic experimental parameters. (Some figures in this article are in colour only in the electronic version)

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