نتایج جستجو برای: irradiation

تعداد نتایج: 64089  

Journal: :iranian journal of radiation research 0
m. allahverdi department of medical physics, tehran university of medical sciences, tehran, iran gh. geraily department of medical physics, tehran university of medical sciences, tehran, iran m. esfehani departments of radiology, iran university of medical sciences, tehran, iran a. sharafi department of radiotherapy and oncology, cancer institute, tehran university of medical sciences, tehran, iran a. shirazi department of medical physics, tehran university of medical sciences, tehran, iran

background: total body irradiation (tbi) is different from standard radiotherapy in many aspects, so it is not easy to predict the delivered dose to the patient under tbi treatment. diode dosimetry procedures for surface dose reading can help to define variations of the actually delivered dose from the prescribed one. the aim of this study was to describe the measurements made to calibrate diod...

Journal: :iranian journal of applied animal science 2016
m. zarei f. kafilzadeh p. shawrang

the objective of this study was to determine the effect of irradiation of pomegranate seed (ps) on chemical composition, digestibility and kinetic of gas production. pomegranate seeds were exposed to gamma ray (gr) and electron beam (eb) at doses of 5, 10, 15 and 20 kgy. three ruminally fistulated rams were used for obtaining ruminal fluid for in vitro digestibility and gas production measuremen...

Journal: :journal of sciences, islamic republic of iran 2011
f. farzaneh

cr2o3 nanoparticles were prepared using cr(no3)3.9h2o as starting material, triethanolamine (tea) as template and water as green solvent under microwave irradiation. the products were characterized by x-ray diffraction (xrd), transmission electron microscopy (tem), fourier transform infrared (ft-ir), photoluminescence (pl) and raman spectroscopy. the size distribution of individual particles we...

Journal: :journal of research in medical sciences 0
hasan razmjoo alireza peyman kobra nasrollahi hasan salam najmeh karbasi mohammad reza najarzadegan

background: corneal collagen cross-linking with riboflavin, also known as collagen cross-linking (cxl), involves the application of riboflavin solution to the eye that is activated by illumination with ultraviolet a (uva) light. we survey here the topographic corneal changes one year after cxl in patients with corneal keratoconus. materials and methods: this prospective randomized clinical tria...

Journal: :تحقیقات مهندسی کشاورزی 0
فریبا بیات عضو هیئت علمی بخش تحقیقات فنی و مهندسی کشاورزی مرکز تحقیقات کشاورزی و منابع طبیعی استان همدان حمیدرضا ذوالفقاریه عضو هیئت علمی پژوهشکده تحقیقات کشاورزی، پزشکی و صنعتی کرج

irradiation is known to inhibit waste in stored garlic. treatment time and optimum irradiation dosage are two key factors in achieving the least waste in this process. these two factors were investigated on white ecotype bulbs from hamedan, iran that were irradiated after harvest for 30 and 45 days using fast electrons at dosages of 0, 25, 50, 75, 100, and 150 gy. different properties of the ga...

Journal: :iranian journal of radiation research 0
m. heidarieh agricultural, medical and industrial research school, karaj, iran a. borzouei agricultural, medical and industrial research school, karaj, iran s. rajabifar agricultural, medical and industrial research school, karaj, iran f. ziaie agricultural, medical and industrial research school, karaj, iran sh. shafiei departments of clinical science, faculty of veterinary medicine, university of tehran, tehran, iran

background: the approaches chosen for control of outbreaks of infectious diseases in aquatic farming industry include improvement of environmental conditions, stocking of specific pathogen free (spf) brood stockings, and application of vaccines and immunostimulants. despite numerous studies on the effects of ergosan on immune system of aquatic animals, there is no data available on antioxidant ...

Journal: :iranian journal of medical physics 0
ashkan salajegheh department of radiology, school of paramedical sciences, shiraz university of medical sciences, shiraz, iran mehdi hoseini medical physics department, school of medicine, mashhad university of medical sciences, mashhad, iran mina nouri department of radiology, school of paramedical sciences, mashhad university of medical sciences, mashhad, iran rasool dehghani soltani student research committee, kerman university of medical sciences, kerman- iran yaser masoumi-ardakani physiology research center, institute of neuropharmacology, kerman university of medical sciences, kerman, iran

introduction it has long been known that ionizing radiation can lead to detrimental effects in normal cells. in this light, radioprotective chemicals have been used to decrease morbidity or mortality caused by ionizing irradiation. this study aimed to evaluate the radio-protective effect of n-acetylcysteineagainst radiation-induced mortality in male mice. materials and methods 52 healthy male m...

Journal: :organic chemistry research 0
reza ranjbar-karimi vali-e-asr university fahimeh bahadornia vali-e-asr university alireza poorfreidoni vali-e-asr university of rafsanjan

some amide derivatives have been synthesized by the reaction of corresponding nitriles with potassium tert-butoxide as a nucleophilic oxygen source under ultrasonic irradiation. this new methodology provides good to excellent yields in short reaction times (15-90 min) at room temperature.

Journal: :journal of agricultural science and technology 2011
m. rezaee m. almasi a. majdabadi farahani s. minaei m. khodadadi

storage of potatoes is very important because fresh potatoes are available only for a few months in a year. thus, any treatment such as irradiation that controls sprout growth and extends shelf life of potatoes could be beneficial. in this study, potato sprout inhibition and tuber quality after treatment with various levels of gamma irradiation (0, 50, 100 and 150 gy) on different dates (10, 30...

Journal: :caspian journal of enviromental sciences 0

the aim of this study was to degrade furfural by a new nanotube system. to degrade some organic pollutants as well as to reduce the amount of furfural which is a well-known pollutant in oil industry, the photocatalytic process along with ultraviolet (uv) irradiation may be employed. in this study, the uv/tio2/pd system in which the nanoparticles of palladium doped into the titanium dioxide was ...

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