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Designing a nuclear battery based on the Mo-99 radioactive source soluble in water and aqua regia in order to use in early tests

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Nuclear Science and Techniques 2019年第3期30卷 37-45页

作者： Zohreh Movahedian hossein tavakoli-Anbaran Faculty of Physics and Nuclear Engineering Shahrood University of Technology

Today, millions of electrocommunication, electric, medical, and industrial devices use battery. Batteries with long life and high energy density seem to be essential in medical, military, oil and mining, aerospace areas as well as conditions in which access is difficult and in situations where replacement or recharging of battery is *** this regard, the use of radiation energy resulting from radioactive materials and its conversion to electric energy can be effective in making batteries. In the present study,various Mo-99 radioisotope values with a half-life of 65.98 h were used as a soluble radioactive source in two materials of water and aqua regia. Then, by comparing the results of the Monte Carlo simulations program MCNPX for these two solutions, it was found that when the water is used instead of aqua regia(for idealization), the values of the superficial current of electrons, the volumetric flux of electrons, and the deposited energy in the volume containing the radioactive solution increased by 10.80, 4.10,and 13.80%, respectively. Also, the short-circuit current and energy conversion efficiency of this battery with a concentration of 0.01 molar, Mo-99 dissolved in the aqua regia are 0.79μA and 16.47%, respectively.

关键词： Nuclear battery radioactive solution MCNPX code Mo-99

Sulfamic acid as a reusable and green catalyst for efficient and simple synthesis of 2-substituted-2,3-dihydroquinazolin-4(1h)-ones in water or methanol

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Chinese Chemical Letters 2011年第11期22卷 1317-1320页

作者： Amin rostami Ashkan tavakoli Department of Chemistry Faculty of Science University of KurdistanSanandaj ***Iran

A series of 2,3-dihydroquinazolin-4（1h）-ones have been synthesized in good to excellent yields through direct cyclocondensation of anthranilamide and aryl aldehydes or ketones in water or methanol under mild *** reaction was efficiently promoted by 10 mol%sulfamic acid（SA,h_2NSO_3h） and the catalyst could be recovered easily after the reactions and reused without evident loss of reactivity.

关键词： Sulfamic acid Catalyst Anthranilamide Aldehyde Ketone 2 3-Dihydroquinazolin-4(1h)-ones

Patient tracking in earthquake emergency response in Iran： A qualitative study

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World Journal of Emergency Medicine 2017年第2期8卷 91-98页

作者： Nahid tavakoli Mohammad h Yarmohammadian reza Safdari Mahmoud Kcyvanara health Management and Economics research Center Isfahan University of Medical Sciences Isfahan Iran health Information Management Tehran University of Medical Sciences Tehran Iran Social Determinants of health research Center Isfahan University of Medical Sciences Isfahan Iran

BACKGrOUND: After a disaster, all victims have to be rapidly and accurately identified for locating, tracking and regulating them. The purpose of this study was to summarize people's experiences that how the patients were tracked in past earthquake disasters in ***: A qualitative study was carried out in 2015. This was an interview-based qualitative study using content analysis. The interviewed people included physicians, nurses, emergency medical technicians, disaster managers, red Crescent Society' first responders and managers. Participants were identified using a snow ball sampling method. Interviews were audiotaped, transcribed, coded, and entered into MAXQDA(version 10) for coding and content ***: Three main themes and seven categories including content(recoding data), function(identification of victims, identification of the deceased, informing the patients' relatives, patients' evacuation and transfer, and statistical reporting), technology(the state of using technology) were identifi ed that showed the patient tracking status in past earthquakes in ***: Participants believed that to identify and register the data related to patients or the dead, no consistent action plan was available. So developing a consistent patient tracking system could overcome this issue and improve patient safety.

关键词： Patient tracking Emergency response Qualitative study Earthquake

A Carbon Material as a Strong Protonic Acid for Efficient Synthesis of 4（3h）-Quinazolinones

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Chinese Journal of Chemistry 2011年第8期29卷 1685-1688页

作者： tavakoli-hoseini, Niloofart Davoodnia, Abolghasem Department of Chemistry Mashhad Branch Islamic Azad University Mashhad Iran

Carbon-based solid acid catalyst has been applied to catalyzing the synthesis of 4（3h）-quinazolinones from the cyclization reaction of 2-aminobenzamide with aroyl chlorides. The results showed that the catalyst was very efficient with the average yield over 85%. This carbon material with strong protonic acid sites as heterogeneous cata- lyst has some advantages such as high activity, strikingly simple work-up procedure, non-pollution, and reusability, which will contribute to the green process greatly.

关键词： carbon-based solid acid heterogeneous catalysis 2-aminobenzamide aroyl chlorides cyclization

Thermal Analysis Simulation of Germanium Zone refining Process Assuming a Constant radio-Frequency heating Source

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Chinese Physics Letters 2016年第5期33卷 123-126页

作者： Mahdi Ezheiyan hossein Sadeghi Mohammad-hossein tavakoli Department of Physics Malek-Ashtar University of Technology Department of Physics Bu-Ali Sina University

Three-dimensional thermal a nalysis simulation of a horizontal zone refining system is conducted for germanimn semiconductor materials. The considered geometry includes a g＇ral）hite boat filled with germanium placed in a cylindrical quartz tube. A flow of Ar and h2 gas mixture is purged througll the tube. A narrow section of the, boat is assmned to be exposed to a constant heat rate produced b v an rf coil located outside the quartz tube. The results of this analysis provide essential information about various parameters such as the shape of tile molten zone, required power and temperature gradient in the system.

关键词： of on Thermal Analysis Simulation of Germanium Zone refining Process Assuming a Constant radio-Frequency heating Source in is for

highly efficient solvent-free synthesis of quinazolin-4(3h)-ones and 2,3-dihydroquinazolin-4(1h)-ones using tetrabutylammonium bromide as novel ionic liquid catalyst

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Chinese Chemical Letters 2010年第5期21卷 550-553页

作者： A.Davoodnia S.Allameh A.r.Fakhari N.tavakoli-hoseini Department of Chemistry Faculty of SciencesIslamic Azad UniversityMashhad BranchMashhad 91735-413Iran

A simple and efficient procedure for the synthesis of 2-arylquinazolin-4（3h）-ones has been developed through cyclocondensation of 2-aminobenzamide with aromatic aldehydes using tetrabutylammonium bromide（TBAB） as novel neutral ionic liquid catalyst in the presence of copper（Ⅱ） chloride（CuCl;） as oxidizing agent under solvent-free conditions at 100℃.In the absence of CuCl;and under a nitrogen atmosphere,the unoxidized intermediates,2-aryl-2,3-dihydroquinazolin-4（1h）-ones,were isolated. Treatment of these intermediates with CuCl;in TBAB media gave the oxidized products 2-arylquinazolin-4（3h）-*** the other hand,cyclocondensation of 2-aminobenzamide with aromatic aldehydes in TBAB under microwave irradiation directly gave 2- arylquinazolin-4（3h）-ones.

关键词： Quinazolinones Aromatic aldehydes Tetrabutylammonium bromide(TBAB) Copper(Ⅱ) chloride(CuCl2) Microwave irradiation

A facile one-pot synthesis of new thieno-[2,3-d]pyrimidine-2,4(1h,3h)-dione derivatives

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Chinese Chemical Letters 2007年第10期18卷 1163-1165页

作者： A.Davoodnia h.Behmadi A.Zare Bidaki M.Bakavoli N.tavakoli hoseini Department of Chemistry School of SciencesIslamic Azad UniversityMashhad 91735-413Iran

A facile one-pot synthesis of new 3-arylthieno[2,3-d]pyrimidine-2,4（1h,3h）-diones via base-catalyzed cyclocondensation of ethyl 2-amino-4,5-dimethylthiophene-3-carboxylate with aryl isocyanates is described.

关键词： 3-Arylthieno[2,3-d]pyrimidine-2,4(1h,3h)-diones Aryl isocaynates Base-catalyzed cyclocondensation One-pot synthesis

A comprehensive review of renewable energy resources for electricity generation in Australia

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Frontiers in Energy 2020年第3期14卷 510-529页

作者： Alireza hEIDArI Ali ESMAEEL NEZhAD Ahmad tavakoli Navid rEZAEI Foad h.GANDOMAN Mohammad reza MIVEh Abdollah AhMADI Majid MALEKPOUr School of Electrical Engineering and Telecommunications The University of New South WalesSydney 2052Australia Department of Electrical Electronicand Information EngineeringUniversity of BolognaBologna 40126Italy Lloy's register Melbourne 3000Australia Department of Electrical Engineering University of KurdistanSanandaj ***Iran research group MOBI-Mobility Logisticsand Automotive Technology Research CenterVrije Universiteit BrusselPleinlaan 2Brussels 1050BelgiumFlanders Make 3001HaverleeBelgium MIVEh Department of Electrical Engineering Tafresh UniversityTafresh 39518-79611Iran

recently,renewable energy resources and their impacts have sparked a heated debate to resolve the Australian energy *** are many projects launched throughout the country to improve network security and *** paper aims to review the current status of different renewable energy resources along with their impacts on society and the ***,it provides for the first time the statistics of the documents published in the field of renewable energy in *** statistics include information such as the rate of papers published,possible journals for finding relative paper,types of documents published,top authors,and the most prevalent keywords in the field of renewable energy in *** will focus on solar,wind,biomass,geothermal and hydropower technologies and will investigate the social and environmental impacts of these technologies.

关键词： renewable energy hydro energy wind power photovoltaic geothermal bioenergy

Synthesis of Pyrazolo[3,4-d]pyrimidin-4-ones Catalyzed by Brensted-acidic Ionic Liquids as highly Efficient and reusable Catalysts

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Chinese Journal of Chemistry 2011年第11期29卷 2421-2426页

作者： tavakoli-hoseini, Niloofar Moloudi, raheleh Davoodnia, Abolghasem Shaker, Mohammad Department of Chemistry Mashhad Branch Islamic Azad University Mashhad Iran

A convenient and efficient method for the synthesis of pyrazolo[3,4-d]pyrimidin-4-ones via heterocyclization reaction of 5-amino-lh-pyrazole-4-carboxamides with triethyl orthoesters using two BrCnsted-acidic ionic liquids, 3-methyl-l-（4-sulfonic acid）butylimidazolium hydrogen sulfate [MIM＋（Ch2）4SO3h][ hSO4 ] or N-（4-sulfonic acid）butyl triethylammonium hydrogen sulfate [Et3N＋（Ch2）4SO3h][ hSO4 ], as efficient homogeneous catalysts under solvent-free conditions is described.

关键词： homogeneous catalysis ionic liquids pyrazolo[3,4-d]pyrimidin-4-ones solvent-free condition triethyl orthoesters