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Inżynier i Fizyk Medyczny
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Ceramika Budowlana
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Nukleonika
EN This paper presents the results of the studies on changes of selected quality parameters of hydrobiodegradable aliphatic-aromatic copolyester (AAC). Radiation treatment was performed at the Institute of Nuclear Chemistry and Technology in Warsaw, using cobalt gamma-ray sources "Issledovatel" (dose r[...]
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Nukleonika
EN In this study, factors that limit the utilization of electron beam irradiation for decomposition of pollutants were investigated. Potassium hydrogen phthalate (KHP) was used as the model pollutant compound. The accumulated chemical oxygen demand (COD) removal below 2.4 kGy (applied for concentration[...]
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Nukleonika
EN DNA is the universal primary target for ionizing radiation; however, the cellular response is highly diversified not only by differential DNA repair ability. The monitoring system for the ionizing radiation-inflicted DNA damage consists of 3 apparently independently acting enzymes which are activate[...]
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Nukleonika
EN A report is presented on the advantages of the rapid interphase chromosome assay (RICA) and the difficulties that may be met while implementing this method for application in biological dosimetry. The RICA test can be applied on unstimulated human lymphocytes; this is an advantage in comparison with[...]
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Nukleonika
EN Recently, significant attention has been paid to the possibility of thwarting cancer progression by inhibition of neoangiogenesis (formation of new blood vessels) in growing tumors. Although general mechanisms of angiogenesis have been elucidated, virtually nothing is known about the effects of low [...]
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Nukleonika
EN Inverted liquid sugar is a mixture of sucrose, glucose and fructose, which shows its relevant characteristic on high sweetness power. Ionizing radiation has been applied to different kind of food and ingredients for different reasons, such as pathogens reduction, disinfestations, quarantine purposes[...]
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Measurement Automation Monitoring
2016 Vol. 62, No. 4 146--148
EN The paper presents the results of research concerning electrical discharges generating ionizing radiation in air and oil. Ionizing radiation is an important component of energy balance in electrical discharges. In energetics and all other engineering sciences, the energy balance shows the flow of en[...]
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Metrology and Measurement Systems
2017 Vol. 24, nr 1 143--151
EN Ionizing radiation applied on food eliminates harmful microorganisms, prevents sprouting and delays ripening. All methods for detection of irradiated food are based on physical, chemical, biological or microbiological changes caused by the treatment with ionizing radiation. When minerals are exposed[...]
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Geochronometria
2000 Vol. 19 59-64
EN The EPR method of dating is based on measurements of the concentration of paramagnetic centres generated by ionising radiation. The age (t) of a given sample is defined as the ratio of the geological dose (AD) to the annual dose (D). The geological dose is determined on the basis of the extrapolatio[...]
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Nukleonika
EN The aim of the present study was to evaluate the cellular radiosensitivity and radiation-induced DNA damage and repair in Chinese hamster ovary (CHO) cells. Cell survival after irradiation was assessed using the clonogenic assay. The initial, radio-induced and residual DNA damage in Chinese hamster [...]
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Nukleonika
EN he movement toward commercialization of the process and the recent actions of various governmental agencies to accept irradiated foods as wholesome, even when high doses are applied has stimulated increased interest in this treatment. Concern for the fate of vitamins when foods are irradiated is alm[...]
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Nukleonika
EN Developments regarding the radiation processing of materials are discussed in the paper. Radiation sources are briefly listed, showing recent achievements in the field. The main group of materials modified by radiation are synthetic polymers and rubber. Other applications are irradiation of semicond[...]
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Engineering of Biomaterials
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Engineering of Biomaterials
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Górnictwo i Geologia
2009 T. 4, z. 2a 105-114
PL W artykule przedstawiono wybrane zagadnienia związane z występowaniem i kontrolowaniem zagrożenia promieniowaniem jonizującym występującym w podziemnych zakładach górniczych oraz na terenach zlokalizowanych na powierzchni wokół kopalń. Na przykładzie "Programu naprawczego skutkującego zminimalizowan[...]
EN This paper presents selected issues related to occurrence and control of the ionizing radiation hazard in underground mining plants and areas situated on the surface around the coalmines. Illustrated with an example of "The Repair Programme to Minimise the Harmful Effect of Salty Mine Waters Dispose[...]
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Ceramika Budowlana
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Nukleonika
EN The paper is composed of two parts : a review of a group of experiments among irradiated plants and own search for radiation hormesis in a single experiment. In the first part the Bayesian analysis of the hormetic-like data published so far shows that the NOAEL (no observed adverse effect level) poi[...]
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Nukleonika
EN In the present work, twin screw extruded films of PLLA and PCL biodegradable homopolymers and 50:50 (w:w) blend were irradiated with gamma rays from Co-60 and electron beam at doses in the range of 50 to 500 kGy in order to evaluate the effect of irradiations on homopolymers and blend. The FTIR resu[...]
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