Showing papers in "Journal of Radiation Research and Applied Sciences in 2014"

TL;DR: In the last several years, in serious consideration of the worldwide economic and environmental pollution issues there has been increasing research interest in the value of bio-sourced lignocellu....

TL;DR: In this article, a review work is summarized on the multi-step processing technologies to produce lactic acid from different substances as a starting material potentially from various agro-industrial based biomasses.

TL;DR: In this paper, naturally occurring radionuclides were measured using HPGe γ-ray spectrometer to evaluate the radiation health hazard indices and excess lifetime cancer risk (ELCR ).

TL;DR: In this paper, a comparison of Photoluminescence (PL) studies of Gd2O3 phosphor prepared by two synthesis methods, high temperature (1400°C) solid state reaction and low temperature co...

TL;DR: In this paper, the activity concentrations of natural radionuclides 238 U, 232 Th and 40 K in soil samples from the gold mining area in Itagunmodi were measured by gamma spectrometry using Sodium Iodide detector.

TL;DR: In this article, the concentration of naturally occur- ring radionuclides in soil, rock phosphate and phosphogypsum samples collected around a phosphate fertilizer plant were determined, and external background gamma levels were surveyed.

TL;DR: In this article, a copolymerization of cellulose acetate with polyethylene oxide (PEO) was performed using γ-rays as the initiator, where the PEO additives were crosslinked with N,N′Methylene bis-acrylamide (MBAAm).

TL;DR: In this paper, the results of ambient outdoor gamma dose rates measured for Jhelum valley of the state of Azad Kashmir were presented by using Ludlum micrometer-19 which is an active and portable detector.

TL;DR: In this paper, the authors dealt with the production of enzyme xylanase by solid substrate fermentation using Trichoderma viride -IR05 and found that sugarcane bagasse was the best substrate for enzyme synthesis.

TL;DR: In this article, the thermoluminescence properties of Er3+ doped gadolinium oxide nanophosphor were investigated by using X-ray diffraction technique and the particle size calculated by Scherer's formula.

TL;DR: Scanning electron microscopy is allowed tool to observe the mode of action ofentomopathogenic fungi and to observe how they are able to colonize and infect the host.

TL;DR: The distribution of natural gamma ray emitting 238 U, 232 Th and 40 K radionuclides in beach sediments along north east coast of Tamilnadu, India has been carried out using a NaI(Tl) gamma ray spectrometric technique.

TL;DR: In this paper, the gamma-spectroscopy system based on high-purity germanium detector with an efficiency of 40 % was used to determine the amount of γ-decay of several building materials used in Egypt, in terms of Bq kg−1, and to calculate the radiological effect caused by this radioactivity.

TL;DR: In this paper, the potential production of carboxymethylcellulase (CMCase) by Aspergillus hortai in liquid state fermentation was studied and cultural and nutritional factors affecting CMC production were also investigated in order to optimize the fermentation conditions for the maximization of production.

TL;DR: In this article, the adsorption of Zn2+, Co2+ and Mn2+ ions onto polyvinyl alcohol and acrylic acid (AAc) copolymerized in different compositions using gamma irradiation was investigated.

TL;DR: Xylan degrading bacterial strain was isolated from soil and identified as Geobacillus stearothermophilus KIBGE-IB29 on the basis of morphological, biochemical and 16S rDNA sequence analysis and high yield of xylan degrading endo-1, 4-β-xylanase was achieved.

TL;DR: The caldose_x 5.0 software has been used to assess the entrance skin doses (ESD) and effective doses (ED) of adult patients undergoing x-ray examinations of the thorax/chest, pelvis, cervical spine, thoracic spine and lumber spine in three public hospitals each equipped with constant potential generators.

TL;DR: In this article, the structure and particle size of the TiO 2 nanoparticles, embedded in the CMC matrix, were identified by X-ray diffraction (XRD), and transmission electron microscopy (TEM) techniques, with particle size in the range of 20-40nm.

TL;DR: In this article, the radioactivity concentrations of 226 Ra, 232 Th and 40 K in some commercial flooring materials used in Tiruvannamalai, Tamilnadu, India, were measured using NaI(Tl) gamma ray spectrometer.

TL;DR: In this paper, the radiological hazards indices of chemical fertilizers commonly used in Upper Egypt were determined by gamma spectrometry using NaI (Tl) 3″-×-3″ detector.

TL;DR: In this article, the effect of gamma ray irradiations on the optical and electrical properties of poly allyl diglycol carbonate (CR-39) solid state nuclear track detector samples were investigated.

TL;DR: In this article, gamma ray spectroscopy using a highly shielded Canberra NaI (Tl) detector was used at the e-waste dumpsite around Alaba International Market, Lagos and three municipal waste dumpsites located in Ibadan and Ado Ekiti, southwest Nigeria.

TL;DR: In this article, the radionuclide 226Ra and 222Rn were determined in natural ground water of the Mandya district, Karnataka State, India and the total dose due to ingestion and inhalation varies from 26.83 ± 0.31 to 178.53 μSv y−1 with a geometric mean of 65.94 µSv Y−1.

TL;DR: In this article, the effects of variable concentration of titanium on thermoluminescence (TL) behavior are studied and the synthesis and characterization of Ti doped ZrO2 nanophosphors are reported.

TL;DR: In this paper, the spectral behavior and the effects of dose on the absorption coefficient α, optical energy gap, refractive index and extinction coefficient were investigated using poly vinyl alcohol doped with Crystal violet and carbol fuchsine films.

TL;DR: The brown mussel Perna perna, an effective bioindicator species for monitoring radioactive pollution, was used to evaluate the concentration of 210 Po in and around the coastal areas of Kanyakumari, a Monazite rich region as discussed by the authors.

TL;DR: In this article, the average absorbed dose rates, annual effective dose (AED) and excess life time cancer risks (ELCR) were calculated by standard method using a Plastic Scintillation Counter.

TL;DR: In this paper, the authors focused on the thermoluminescence glow curves and kinetic parameters, activation energy, order of kinetics, and frequency factor of ZrO 2 :Eu 3+ phosphor under different doses of UV irradiations at a heating rate of 6.7°C/s.

TL;DR: In this article, two different methods are adapted for measuring both the leakage rate and the back diffusion rate in two different radon chambers and compared with simple equation for λb based on the ratio of the source to the chamber volume.

TL;DR: In this paper, the activity concentration of naturally occurring radionuclides in soil samples of an elevated radiation background area of Western Ghats were determined using gamma-ray spectrometry with the aim of evaluating the environmental radioactivity.