نتایج جستجو برای: electron beam irradiation

تعداد نتایج: 456538  

2015
Soung Min Kim Huan Fan Yun Ju Cho Mi Young Eo Ji Hyun Park Byung Nam Kim Byung Cheol Lee Suk Keun Lee

BACKGROUND To develop biocompatible bony regeneration materials, allogenic, xenogenic and synthetic bones have been irradiated by an electron beam to change the basic structures of their inorganic materials. The optimal electron beam energy and individual dose have not been established for maximizing the bony regeneration capacity in electron beam irradiated bone. RESULTS Commercial products ...

ژورنال: طلوع بهداشت یزد 2017
اکرمی, فاطمه, حیدری, علی, قیصری, حمیدرضا, محمد زاده, مرتضی, یاسینی اردکانی, سیّد علی,

Introduction: Irradiation of intervention strategies in order to effectively control food-borne pathogens are microorganisms that reduce microbial load and increase the shelf-life. Methods: In this study, ostrich meat with electron beam 1.5, 3 and 5 kGy doses treated and were stored in temperature 1 ± 4° C for 15 days. With 5 day intervals after irradiation, chemical and organolep...

2016
Sejoon Park Seung Hwa Yoo Ha Ri Kang Seong Mu Jo Han-Ik Joh Sungho Lee

An electron beam was irradiated on polyacrylonitrile (PAN) fibers prior to thermal stabilization. The electron-beam irradiation effectively shortened the thermal stabilization process by one fourth compared with the conventional thermal stabilization process. A comprehensive mechanistic study was conducted regarding this shortening of the thermal stabilization by electron-beam irradiation. Vari...

F. Kafilzadeh M. Zarei, 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...

2014
Henri Nykänen Sami Suihkonen Markku Sopanen Filip Tuomisto

In this paper, we present our studies on thermally assisted recovery of low energy electron beam induced optical degradation of gallium nitride. A clear reduction in MOVPE grown GaN band-to-band photoluminescence intensity induced by low energy electron beam irradiation has been found before. Partial recovery of the band-toband emission was observed after annealing in both H2 and N2 ambient, at...

2016
Piotr Rychter Natalia Śmigiel-Gac Elżbieta Pamuła Anna Smola-Dmochowska Henryk Janeczek Wojciech Prochwicz Piotr Dobrzyński

The aim of the study was the evaluation of gamma irradiation and electron beams for sterilization of porous scaffolds with shape memory behavior obtained from biodegradable terpolymers: poly(l-lactide-co-glycolide-co-trimethylene carbonate) and poly(l-lactide-co-glycolide-co-ɛ-caprolactone). The impact of mentioned sterilization techniques on the structure of the scaffolds before and after the ...

Journal: :Frontiers in bioscience : a journal and virtual library 1998
C G Willett A L Warshaw

Intraoperative electron beam radiation therapy (IOERT) is a technique in which a single high fraction radiation treatment is administered at the time of surgery. Using IOERT, the total radiation dose delivered to a tumor can be increased since sensitive normal tissues are removed from the radiation field during the surgical procedure. Furthermore, while the biologic effectiveness of this single...

2016
Boo Young Shin Man Ho Ha Do Hung Han

An immiscible polyamide 6 (PA6)/polypropylene (PP) blend was compatibilized by electron-beam irradiation in the presence of reactive agent. Glycidyl methacrylate (GMA) was chosen as a reactive agent for interfacial cross-copolymerization between dispersed PP and continuous PA6 phases initiated by electron-beam irradiation. The PA6/PP (80/20) mixture containing GMA was prepared using a twin-scre...

Journal: :Dental materials : official publication of the Academy of Dental Materials 2005
Michael Behr Martin Rosentritt Andreas Faltermeier Gerhard Handel

OBJECTIVES Electron beam irradiation can be used to influence the mechanical properties of polymers. It was the aim of this study to investigate whether dental composites can benefit from irradiation in order to achieve increased fracture toughness, work of fracture, hardness or less wear. METHODS Two hundred rectangular specimens of five veneering composites were electron beam irradiated wit...

ژورنال: طلوع بهداشت یزد 2016
بیابانی اردکان, جواد, تازه, الهه, حاجی محمدی, بهادر, حسین پورگنجارودی, فاطمه, زندی, هنگامه,

Introduction: Due to the increasing use of irradiation in food safety as an efficient and supplement method, it is needed to investigate effects of this new technology on the apparent and organoleptic characteristics of different products. Because primarily thing that attracts the attention of the customer to buy a food product is its appearance characteristics. The aim of this study was to det...

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