نتایج جستجو برای: molybdenum breakthrough

تعداد نتایج: 25146  

Journal: :iranian journal of radiation research 0
s.a. memon nuclear institute of medicine and radiotherapy (nimra) jamshoro, pakistan n.a. laghari nuclear institute of medicine and radiotherapy (nimra) jamshoro, pakistan s.t. qureshi university of sindh, jamshoro, pakistan f. mehdi nuclear institute of medicine and radiotherapy (nimra) jamshoro, pakistan

background: technetium-99m radioisotope is the backbone of any nuclear medicine institute. this radioisotope is acquired by the elution of molybdenum-99/technetium-99m generator which emits 141 kev gamma ray and having 6.04 hour half-life. occasionally the contents of molybdenum-99 may mix up with elute, which may affect image quality and patients may receive higher doses than recommended. this...

F. Mehdi, N.A. Laghari, S.A. Memon, S.T. Qureshi,

Background: Technetium-99m radioisotope is the backbone of any nuclear medicine institute. This radioisotope is acquired by the elution of Molybdenum-99/Technetium-99m generator which emits 141 keV gamma ray and having 6.04 hour half-life. Occasionally the contents of Molybdenum-99 may mix up with elute, which may affect image quality and patients may receive higher doses than recommended. This...

بابایی , احمد رضا, صادق زاده, نورالله, صادقی, مهدی, عابدی, سید محمد,

Background and purpose: 99mTc is a widely used radionuclide in nuclear medicine and research nowadays. Two types of 99 Mo/99mTc generators were studied in 2013 and 2014 to test the quality of the eluates. In this study we measured the radionuclide purity for possible 99Mo breakthrough, the radiochemical purity, the pH, and the aluminum content of eluates. Materials and methods: Two type genera...

2013
Fatemeh Kafshgari Ali Reza Keshtkar Mohammad Ali Mousavian

Molybdenum (VI) biosorption process was investigated by marine algae Cystoseria indica pretreated with 0.1 M CaCl2 solution in a packed bed column. The biosorbent was characterized by FTIR, BET and SEM analyses. The results showed that Mo (VI) ions should be chelated with the hydroxyl, carboxyl and amine groups of the biomass. The effects of inlet metal concentration and flow rate on biosorptio...

Journal: :Journal of pain and symptom management 2006
Sebastiano Mercadante Patrizia Villari Patrizia Ferrera Giampiero Porzio Federica Aielli Lucilla Verna Alessandra Casuccio

Supplemental dosing of an opioid is the main treatment suggested to manage breakthrough pain in cancer patients. The intravenous route has been proven to be safe and effective, providing rapid analgesia in patients receiving oral morphine. Transdermal buprenorphine (TTS-BUP) is increasingly used in cancer pain management, but this drug has been labeled as a difficult drug to use in combination ...

M. Masihi, S. Sadeghnejad

Water flooding is a well-known secondary mechanism for improving oil recovery. Conventional approach to evaluate the performance of a water flooding process (e.g. breakthrough and post breakthrough behavior) is to establish a reliable geological reservoir model, upscale it, and then perform flow simulations. To evaluate the uncertainty in the breakthrough time or post breakthrough behavior, thi...

Journal: :نشریه دانشکده فنی 0
بهروز قاسمی جلیل وحدتی خاکی مسعود گودرزی

the molybdenum dicilicide is an intermetallic compound with two allotropies tetragonal ?-mosi2 and hexagonal ?-mosi2.the ?-mosi2 phase is established to 1900 ?c and ?-mosi2 phase from 1900 to 2050 ?c. this material has considerable properties that provide different applications in different industries such as air-space industry and gas turbines. the molybdenum synthesis can be down in various w...

Journal: :The Journal of nutritional biochemistry 2004
Judith R Turnlund William R Keyes

The relationship between plasma molybdenum (Mo) and dietary intake has not been investigated in humans. We developed an isotope dilution method to determine molybdenum in 0.5 mL blood plasma by ICP-MS and conducted a study to determine the effect of dietary intake on plasma molybdenum. Twelve young men consumed a very low Mo diet (22 microg/day) for 24 days while confined to the WHNRC metabolic...

Journal: :The Journal of biological chemistry 1984
L P Solomonson M J Barber W D Howard J L Johnson K V Rajagopalan

The assimilatory nitrate reductase from Chlorella contains flavin, heme, and molybdenum as prosthetic groups. The molybdenum in assimilatory nitrate reductase is associated with a pterin moiety (molybdopterin) as evidenced by the ability of the enzyme to donate active molybdenum cofactor to the Neurospora nitrate reductase mutant nit-1 and by the oxidative conversion of the pterin to two well c...

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