Biochemical Role of Folic Acid Loaded Magnetic Nanoparticles Versus Gamma Irradiation in Rats
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Gamma Irradiation
radiation damage
Degradation
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Gamma Irradiation
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In order to survey how to distribute the residual moment widely and efficiently along the irradiation direction, the thermos-elasto-plastic analysis for a thin metal plate subjected laser irradiation is conducted in this paper. In the series of our study, the numerical simulation for multipoint irradiations where a following irradiation is conducted at an adjacent point to the current irradiation point has been examined. In the case of wide irradiation distance, it becomes clear that the residual moment distributes largely and widely, however, valleys are formed in the distribution of residual moment. Therefore, it is considered that the overlapping irradiation is needed. In our previous report, considering it is insufficient to obtain smooth distributions by conducting only one-time overlapping irradiation, two or more times overlapping irradiation has been examined. In the present study, focusing on wider irradiation distance, the effects of irradiation distance and the number of overlapping irradiation on the distribution of residual moment are revealed.
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Port (circuit theory)
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The effect of pulse irradiation on the swelling of Fe-17Cr-17Ni-2.5Mo alloy has been investigated in the present work. Ion species are 4 MeV Ni + + and 0.2-0.4 MeV He + . Irradiation temperatures were 843 and 1023K. Pulsing irradiation is the series of 0.5s beam on/ 0.5s beam off (fast pulse) or that of 60s beam on/ 60s beam off (slow pulse). In the case of no He injection, the pulse irradiation suppressed completely the formation and growth of cavities at the irradiation temperature of 1023K. For the case of He preinjection at the higher irradiation temperatures, the pulse irradiation restrained the growth of cavities but increased the number density of cavities. The effect of dual beam pulse irradiation at 843K was small. The other interesting effect of pulse irradiation at 1023K was to inhibit the occurrence of bimodal distributions of cavities (suppressing the large ones) which are otherwise observed with either He preinjection or simultaneous injection.
Void (composites)
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Gamma Irradiation
Strontium-90
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Fusion power
radiation damage
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P92 steel was irradiated with Ar ion up to 10 dpa at 200, 400, and 700 °C. The effect of Ar ion irradiation on hardness was investigated with nanoindentation tests and microstructure analyses. It was observed that irradiation-induced hardening occurred in the steel after Ar ion irradiation at all three temperatures to 10 dpa. The steel exhibited significant hardening at 200 and 700 °C, and slight hardening at 400 °C under Ar ion irradiation. Difference in the magnitude of irradiation-induced hardening at different temperature in the steel is attributed to different changes in the microstructure of the steel that arose from the irradiation. Irradiation-induced hardening in the P92 steel irradiated at 200 °C is attributed to the occurrence of both dislocation loops and other fine irradiation defects during irradiation. Slight hardening in the steel irradiated at 400 °C mainly arises from the annihilation of defect clusters at this temperature. The occurrence of fine Ar bubbles with high number density during the Ar ion irradiation at 700 °C resulted in the significant hardening in the steel.
Hardening (computing)
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前報の研究では,一度目の多点照射の後に再度最初の照射点の近傍に戻って行う重ね照射(二度目の照射)の試みとして,その最初の照射位置とそこで発生する残留モーメントの分布や残留変形の発生状況について検討してきた.本報では更に,重ね照射における最初の照射点以降の照射位置や照射の順序を種々に変えて,薄板に曲げ変形をより効果的に与える重ね照射の方法について検討する.
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