Radiation Physics and Chemistry (1977)最新文献_第6页

The radiation-chemical yields of H3O+ and OH- as determined by nanosecond conductimetric measurements 用纳秒电导测量法测定h30 +和OH-的辐射化学产率

Radiation Physics and Chemistry (1977) Pub Date : 1985-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0146-5724(85)90068-8

Robert F. Anderson, Borivoj Vojnovic, Barry D. Michael

引用次数: 22

Radiation induced modification of polyetherurethane films and tubes: Platelet adhesion and in vivo experiments 辐射诱导聚聚氨酯膜和管的改性:血小板粘附和体内实验

Radiation Physics and Chemistry (1977) Pub Date : 1985-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0146-5724(85)90132-3

B. Jansen , A. Ludwicka , L.W. Storz

引用次数: 9

Decomposition of hydrogen peroxide on silver-nickel oxide two-component catalysts and the effects of ionizing radition 过氧化氢在银镍氧化物双组分催化剂上的分解及电离辐射的影响

Radiation Physics and Chemistry (1977) Pub Date : 1985-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0146-5724(85)90175-X

V Múčka, R Silber

{"title":"Decomposition of hydrogen peroxide on silver-nickel oxide two-component catalysts and the effects of ionizing radition","authors":"V Múčka, R Silber","doi":"10.1016/0146-5724(85)90175-X","DOIUrl":"10.1016/0146-5724(85)90175-X","url":null,"abstract":"<div><p>The decomposition of hydrogen peroxide in aqueous solution has been studied on silver-nickel oxide two-component catalysts containing various proportions of the components covering the entire region of 0–100% of one component. The catalytic activity of the system appears to be a non-monotonic function of its' composition. The activity of the samples containing 0–91 wt% NiO is determined by the catalytic efficiency of the silver component present in the catalyst and this efficiency seems to be connected with the surface concentration of Ag<sup>+</sup> ions. The catalytic activity of samples containing more than 91 wt% NiO is determined by the activity of the nickel oxide. The γ irradiation (dose 10 kGy) of samples containing an excess of silver leads to a lower catalytic activity and irradiation of samples with a higher content of nickel oxide increases its' activity. Irradiation of catalysts with fast neutrons appreciably decreases their activity, irrespective of their composition, while irradiation with β radiation (dose 5.6 MGy) has no effect on their activity.</p></div>","PeriodicalId":101054,"journal":{"name":"Radiation Physics and Chemistry (1977)","volume":"26 2","pages":"Pages 121-126"},"PeriodicalIF":0.0,"publicationDate":"1985-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-5724(85)90175-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53760686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

The radiolysis of mixtures of CF2Cl2 with RH substrates CF2Cl2与RH底物混合物的辐射分解

Radiation Physics and Chemistry (1977) Pub Date : 1985-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0146-5724(85)90038-X

Shlomo Mosseri, Zeev B. Alfassi, W. Fürst, H. Heusinger

引用次数: 0

Decay kinetics of the isothermal luminescence in nonpolar binary mixtures at 77 K 77 K时非极性二元混合物等温发光的衰减动力学

Radiation Physics and Chemistry (1977) Pub Date : 1985-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0146-5724(85)90103-7

A. Płonka, J. Mayer, W. Lefik, J. Kroh

引用次数: 5

Radiation grafting of acrylic acid, methacrylic acid and polyfunctional methacrylates onto poly(vinyl chloride) 丙烯酸、甲基丙烯酸和多官能团甲基丙烯酸酯在聚氯乙烯上的辐射接枝

Radiation Physics and Chemistry (1977) Pub Date : 1985-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0146-5724(85)90128-1

Ung-Ping Wang

{"title":"Radiation grafting of acrylic acid, methacrylic acid and polyfunctional methacrylates onto poly(vinyl chloride)","authors":"Ung-Ping Wang","doi":"10.1016/0146-5724(85)90128-1","DOIUrl":"10.1016/0146-5724(85)90128-1","url":null,"abstract":"<div><p>Gamma and electron-beam radiation induced graftcopolymerization of acrylic acid, methacrylic acid, trimethylolpropane trimethacrylate (TMPTMA) and tetraethyleneglycol dimethacrylate (TEGDMA) onto PVC-films has been investigated. Both swelling effect and oxygen retardation effect in air radiation phase were found to be nonsignificant below the dosages of 1.2 Mrad due to the protection of free radicals by the quick formed gel's network. The graft percentage was increased with the dose-rate and the total dosage, becoming slowly levelling over the doses of 2.4 Mrad. The grafting-rate is regarded to be proportional to the n-th power of the dose- rate, where the value of n being as 1.10<figure><img></figure>1.38 for gamma-irradiation and 1.27<figure><img></figure>1.42 for electron- beam irradiation. Electron-beam irradiation, being extremely high dose-rate, stimulates the grafting-rate, especially the grafting-rate of polyfunctional TEGDMA and TMPTMA because of the quick formation of three dimensional network formed by intra- and inter-crosslinking. Although the grafting results of both gamma and electron-beam irradiation are similar, the latter irradiation favors the mass graft-processing of PVC-films.</p><p>The formation of the grafted stratum on the PVC-film surfaces was found to induce the positive effects of big improvement in tensile-strength, excellent resistant toughness against the erasure of the prints on the grafted PVC-film surfaces and strong adhesive character with several adhesive chemicals.</p></div>","PeriodicalId":101054,"journal":{"name":"Radiation Physics and Chemistry (1977)","volume":"25 4","pages":"Pages 491-499"},"PeriodicalIF":0.0,"publicationDate":"1985-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-5724(85)90128-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53758139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Radiation research at the central institute of isotope and radiation research, Leipzig 莱比锡中央同位素与辐射研究所的辐射研究

Radiation Physics and Chemistry (1977) Pub Date : 1985-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0146-5724(85)90193-1

K. Wetzel

引用次数: 0

The effect of radiation on corrosion of steel in high-temperature water 辐射对高温水中钢腐蚀的影响

Radiation Physics and Chemistry (1977) Pub Date : 1985-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0146-5724(85)90216-X

B.G. Ershov, A.I. Milaev, V.G. Petrosyan, N.I. Kartashov, P.Ya. Glasunov, S.A. Tevlin

引用次数: 5

Enhancement of neutralization reaction in colloidal ferric hydrous oxide 胶体氧化铁中和反应的增强

Radiation Physics and Chemistry (1977) Pub Date : 1985-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0146-5724(85)90101-3

Akos Vertes

引用次数: 0

Thermal effects in radiation processing 辐射加工中的热效应

Radiation Physics and Chemistry (1977) Pub Date : 1985-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0146-5724(85)90276-6

Z.P. Zagórski

{"title":"Thermal effects in radiation processing","authors":"Z.P. Zagórski","doi":"10.1016/0146-5724(85)90276-6","DOIUrl":"10.1016/0146-5724(85)90276-6","url":null,"abstract":"<div><p>The balance of ionizing radiation energy incident on an object being processed is discussed in terms of energy losses, influencing the amount really absorbed. To obtain the amount of heat produced, the absorbed energy is corrected for the change in internal energy of the system and for the heat effect of secondary reactions developing after the initiation. The temperature of a processed object results from the heat evolved and from the specific heat of the material comprising the object. The c<sub>p</sub> of most materials is usually much lower than that of aqueous systems and therefore temperatures after irradiation are higher. The role of low specific heat in radiation processing at cryogenic conditions is stressed. Adiabatic conditions of accelerator irradiation are contrasted with the steady state thermal conditions prevailing in large gamma sources. Among specific questions discussed in the last part of the paper are: intermediate and final temperature of composite materials, measurement of real thermal effects in situ, neutralization of undesired warming experienced during radiation processing, processing at temperatures other than ambient and administration of very high doses of radiation.</p></div>","PeriodicalId":101054,"journal":{"name":"Radiation Physics and Chemistry (1977)","volume":"25 1","pages":"Pages 291-303"},"PeriodicalIF":0.0,"publicationDate":"1985-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-5724(85)90276-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53764584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6