Showing papers in "Radiation Physics and Chemistry in 2007"

TL;DR: In this paper, the distribution of low-energy electrons produced in the radiolysis of liquid water is characterized, and the most probable energy and mean energy for secondary electron produced by a primary ion are ∼ 9 − 10 and 50 − 60 eV, respectively, depending on the specific energy of the primary ion.

TL;DR: In this article, the authors synthesize silver nanoparticles by γ-ray irradiation of acetic water solutions containing AgNO 3 and chitosan, and the resulting particles with the average diameter of 4-5nm were densely dispersed in the solution due to the protection of chitosa chains.

TL;DR: The literature on MCTP is reviewed, focussing on patient modeling, approximations in linear accelerator modeling and variance reduction techniques, and evaluating the added value of M CTP in the clinic.

TL;DR: In this paper, size tunable and biocompatible silver nanoparticles were prepared by γ irradiation using oligochitosan [ ( GlcN x ] as stabilizer, the average particle size was between 5 and 15nm.

TL;DR: The drug release was faster for copolymeric hydrogels with a higher content of itaconic acid and the drug release for TPH as model drug was faster due to a smaller molecular size and a weaker interaction of the TPH molecules with(in) the P(HEMA/IA)Copolymeric networks.

TL;DR: In this article, the effects of irradiation on the nutritive characteristics of peas (Pisum satinum L), cowpeas (Vigna unguiculata L), lentils (Lens culinaris Med), kidney beans ( Phaseolus vulgaris L), and chickpeas(Cicer arietinum l) were examined.

TL;DR: The radiation-induced graft copolymerization is an effective method for modification of the chemical and physical properties of polypropylene as discussed by the authors, which has been studied by simultaneous irradiation method, using a 10-MeV electron beam.

TL;DR: In this article, the authors summarized the work done by different groups and discussed recent developments in regulations and testing procedures in the field of packaging technology, including gamma and electron radiation effects on packaging material properties.

TL;DR: In this article, the effect of absorbed dose on degradation, dechlorination and mineralization of chlorophenols (CPs) in aqueous solution by γ- radiation was investigated.

TL;DR: In this paper, the radiolytic behavior of N,N,N′, N′-tetraoctyldiglycolamide, N, N´-dimethyl-N, n′-dioctyl-2-(3′-oxapentadecyl)malonamide, and N, n´hexanamide in n-dodecane was investigated by irradiation with γ-rays and electron pulses

TL;DR: In this paper, the use of Gelam honey was incorporated into a hydrogel dressing formulation, which was then crosslinked and sterilized using electron beam at 25 and 50kGy.

TL;DR: In this paper, the shelf life of non-irradiated and irradiated (2.5 and 5kGy) sea bass in ice conditions and stored at + 4 ∘ C were investigated by measurement in microbiological, chemical sensory analyses.

TL;DR: In this article, a review deals with some factors determining the anti-aging as well as the aging process, and particular attention is paid to external environmental aging factors such as sunlight, ultrasonic and microwave radiation.

TL;DR: In this article, the irradiation of Ag + in aqueous suspension of SiO 2 in the presence of 0.2 µm −3 isopropanol resulted in the formation of yellow suspension.

TL;DR: In this article, a photoensitizer was applied to the PDMS channel surface regions, contacting the different monomer solutions with the PS-containing surface under nitrogen, and irradiating with UV.

TL;DR: In this paper, the proximate composition, fatty acid and amino acid composition changes of irradiated aqua cultured sea bream ( Sparus aurata ) of the Aegean Sea were investigated.

TL;DR: In this paper, electron beam radiation technology was applied to enhance the biodegradability of textile wastewater for an activated sludge process, which achieved high organic removal efficiencies and high microbial activities.

TL;DR: In this paper, the degradation of diazinon pesticide by 60Co gamma irradiation in a single aqueous solution was conducted on a laboratory scale and the effect of ionizing radiation on the removal efficiency of residues was investigated.

TL;DR: In this article, the authors determined possible radiation-induced alterations in raw or cooked grains from five soybean cultivars through the analysis of some antinutrient, including trypsin inhibited from 18.19 to 71.64 µg and tannins from 0.01 to 0.39 µg.

TL;DR: In this paper, the main objective of the research was to elaborate the method of degradation of natural aminopolysaccharides to obtain a product applicable as biospecimen in protection and stimulation of the plants growth.

TL;DR: In this paper, a relativistic extension of the generalized Langevin equation leads to the formula R CSDA = A ( E 0 + E 0 2 / 2 Mc 2 ) p.

TL;DR: In this article, a polyvinyl pyrrolidone (PVP) was synthesized by electron beam irradiation of the dry polymer under various conditions, and the swelling behavior was analyzed by ellipsometry.

TL;DR: The K shell intensity ratios Kβ/Kα for 59 elements in the atomic region 16⩽Z⌽92 have been measured at excitation energies of 5.9, 59.5 and 123.6

TL;DR: In the early 1970s, it was already known that ortho-positronium ( o -Ps) exhibits characteristic long lifetimes in silica gels, porous glass and zeolites as discussed by the authors.

TL;DR: In this paper, gamma irradiation technique was used to induce chemical changes in commercial polypropylene with two different monomers, Tri-allyl-isocyanurate (TAIC) and Tri-methylolpropane-trimethacrylate (TMPTMA), with concentration ranging from 1.5 to 5.0mmol/100g of polyethylene.

TL;DR: In this article, the water equivalence and radiation transport properties of polymer gel dosimeters over a wide range of photon and electron energies were evaluated using the XCOM and ESTAR database.

TL;DR: In this paper, the processing conditions involving γ-irradiation for minimally processed potato cubes were optimized by response surface methodology by using a central composite rotatable design of experiments.

TL;DR: In this paper, the effect of electron-beam and gamma irradiation under vacuum on the physicochemical and mechanical properties of commercial polypropylene (PP) syringes was studied.

TL;DR: In this article, the structure, crystallization behavior and thermal properties of poly- l -lactide (PLLA), gamma irradiated up to 300kGy, have been studied through differential scanning calorimetry measurements, and radiation-induced changes were evident in the enthalpy of melting and cold crystallization, as well as in the degree of crystallinity Decay of the glass transition, cold crystallisation and melting temperatures with irradiation dose was observed in all cases.

TL;DR: In this article, a novel type of interpenetrating polymer networks (IPN) hydrogel membrane of poly( N -isopropylacrylamide)/carboxymethyl chitosan (PNIPAAm)/(CMCS) was prepared, and the effects of the feed ratio of components, swelling medium and irradiation dose on the swelling and deswelling properties of the PHYGEL was systematically studied.