نتایج جستجو برای: temperature and irradiation coefficients

تعداد نتایج: 16922402  

Journal: :iranian journal of microbiology 0
hamidreza alighourchi department of food science and technology, faculty of agriculture, tarbiat modares university, tehran, iran. mohsen barzegar department of food science and technology, faculty of agriculture, tarbiat modares university, tehran, iran. mohammad ali sahari department of food science and technology, faculty of agriculture, tarbiat modares university, tehran, iran. soleiman abbasi department of food science and technology, faculty of agriculture, tarbiat modares university, tehran, iran.

pomegranate fruit is a rich source of bioactive compounds. the serious concern over unprocessed fruit juices is microbial contamination, which effectively inactivated by thermal processing, but it significantly affects juice functional compounds. therefore, the effect of gamma irradiation and ultrasonic on inoculated microbial to pomegranate juices was studied.two pomegranate cultivars were pur...

2013
Sang Kuk Kim Shin Young Park Hak Yoon Kim

The study was carried out to determine the gel pasting properties of barley (Hordeum vulgare L. cv. Geoncheonheugbori) as affected by different proton beam irradiation. The λmax, blue value, and amylose content were significantly associated with increasing proton beam irradiation. The pasting time in barley flour irradiated with proton beam ranged 0.09 to 0.16 min shorter than nonirradiated bar...

Journal: :Physical chemistry chemical physics : PCCP 2015
Yugo Tasei Fumikazu Tanigawa Izuru Kawamura Teruaki Fujito Motoyasu Sato Akira Naito

Microwave heating effects are widely used in the acceleration of organic, polymerization and enzymatic reactions. These effects are primarily caused by the local heating induced by microwave irradiation. However, the detailed molecular mechanisms associated with microwave heating effects on the chemical reactions are not yet well understood. This study investigated the microwave heating effect ...

2009
M. F. Desrosiers M. Peters J. M. Puhl

The response of high-dose-range chemical dosimeters is dependent on the dosimeter temperature during irradiation. Typically, irradiation temperatures are estimated by measurements, calculations, or some combination of the two. Then using the temperature coefficient for the dosimetry system, the dosimeter response is adjusted or corrected to be consistent with the irradiation temperature for the...

Journal: :Meat science 2004
M J Zhu A Mendonca D U Ahn

The influence of temperature abuse on the quality of irradiated pork loins was investigated. Pork loins were obtained directly from a local packing plant, sliced and vacuum-packaged. Pork loins were randomly separated into 3 groups, sliced, and assigned to receive 0, 1.5, or 2.5 kGy electron-beam irradiation. Then, each chop was further cut into three equal pieces and assigned to three temperat...

Journal: :تولید گیاهان زراعی 0

the first step to quantify crop phenology is precise estimation of the parameters, which affect it. these parameters are mainly temperature and photoperiod. this study was conducted with eight sowing dates to quantify response of stem elongation rate (ser) to temperature and photoperiod in wheat (tajan cultivar). the regression models fitted to ser against temperature were flat, logistic, quadr...

Journal: :journal of lasers in medical sciences 0
rezvaneh ghazanfari department of dental prosthesis and implants, school of dentistry, tehran university of medical sciences, tehran, iran hanieh nokhbatolfoghahaei laser research center of dentistry, dentistry research institute, school of dentistry, tehran university of medical sciences, tehran, iran marzieh alikhasi dental research center, laser research center of dentistry, dental implant research center, school of dentistry, tehran university of medical sciences, tehran, iran

different techniques have been introduced for the removal of ceramic brackets. since the early 1990s, lasers have been used experimentally for debonding ceramic brackets. the goal of this study is to give a comprehensive literature review on laser-aided ceramic bracket debonding. pubmed and google scholar databases were used to identify dental articles with the following combination of key word...

2008
Nathan Clisby Barry M. McCoy C. N. Yang

We evaluate the virial coefficients Bk for k ≤ 10 for hard spheres in dimensions D = 2, · · · , 8. Virial coefficients with k even are found to be negative when D ≥ 5. This provides strong evidence that the leading singularity for the virial series lies away from the positive real axis when D ≥ 5. Further analysis provides evidence that negative virial coefficients will be seen for some k > 10 ...

In this article, the temperature behavior of output power of superluminescent light-emitting diode (SLED) by considering the effect of non-radiative recombination coefficient, non-radiative spontaneous emission coefficient and Auger recombination coefficients has been investigated. For this aim, GaN pyramidal quantum dots were used as the active region. The numerical method has been used to sol...

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