Radiation Physics and Chemistry (1977)最新文献

筛选
英文 中文
Five years' experience of the international facility for food irradiation technology 五年的国际食品辐照技术设施经验
Radiation Physics and Chemistry (1977) Pub Date : 1985-01-01 DOI: 10.1016/0146-5724(85)90268-7
J. Farkas
{"title":"Five years' experience of the international facility for food irradiation technology","authors":"J. Farkas","doi":"10.1016/0146-5724(85)90268-7","DOIUrl":"10.1016/0146-5724(85)90268-7","url":null,"abstract":"<div><p>The International Facility for Food Irradiation Technology (IFFIT) is an international project, jointly established by the IAEA, the FAO and the Ministry of Agriculture and Fisheries of the Netherlands, to speed up progress in the practical introduction of the process of food irradiation in developing countries. The project is hosted by the Pilot Plant for Food Irradiation and the State Institute for Quality Control of Agricultural Products, Wageningen, The Netherlands. The purpose of IFFIT is: 1) to offer training and assist in international co-ordination of development and research in the fields of technology, economics and implementation of food irradiation; 2) to assist national and international agencies in their assessment of the feasibility of applying radiation preservation techniques to foods; 3) to develop and facilitate the dissemination of information on the above topics without proprietary restrictions. The paper summarizes IFFIT's activities of its first five years of active existence, including training courses, long-term applied research training, feasibility studies, evaluation of trial shipments of irradiated commodities, irradiation services, and information activities.</p></div>","PeriodicalId":101054,"journal":{"name":"Radiation Physics and Chemistry (1977)","volume":"25 1","pages":"Pages 227-231"},"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)90268-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53763980","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: 3
Food irradiation - progress at the international level 食品辐照——国际上的进展
Radiation Physics and Chemistry (1977) Pub Date : 1985-01-01 DOI: 10.1016/0146-5724(85)90270-5
J.G. van Kooij
{"title":"Food irradiation - progress at the international level","authors":"J.G. van Kooij","doi":"10.1016/0146-5724(85)90270-5","DOIUrl":"10.1016/0146-5724(85)90270-5","url":null,"abstract":"<div><p>This paper reviews the international regulatory efforts in the field of food irradiation and deals with the possible role of the International Consultative Group on Food Irradiation to support the implementation of the food irradiation process in industry and trade.</p></div>","PeriodicalId":101054,"journal":{"name":"Radiation Physics and Chemistry (1977)","volume":"25 1","pages":"Pages 243-249"},"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)90270-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53764399","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: 1
Efficacy testing and market research for the pork industry 猪肉工业的功效测试和市场研究
Radiation Physics and Chemistry (1977) Pub Date : 1985-01-01 DOI: 10.1016/0146-5724(85)90272-9
Jacek S. Sivinski
{"title":"Efficacy testing and market research for the pork industry","authors":"Jacek S. Sivinski","doi":"10.1016/0146-5724(85)90272-9","DOIUrl":"10.1016/0146-5724(85)90272-9","url":null,"abstract":"<div><p>Low dose (less than 30 krad) gamma irradiation of <span><math><mtext>Trichinella spiralis</mtext></math></span> infected pork renders the parasites sexually sterile and blocks maturation of the ingested larvae in the host gut. Irradiation of freshly slaughtered, market weight hog carcasses indicate that larvae throughout the carcass have essentially identical sensitivities to radiation. The research data indicate that 30 krad of 0.66 MeV gammas can be delivered to market weight, split carcasses with acceptable uniformity, and that such a dose can provide a substantial margin of safety for human consumption of even heavily infected meat.</p><p>Feasibility studies of pork irradiation in commercial operations have shown the process to be technically, economically, and financially feasible. Treatment during the first four years of operation in a 2,000 hog per day plant will cost about 0.0034 dollars per pound and 0.0011 dollars per pound thereafter. Social and political feasibility are addressed in a 1,000-family consumer survey completed in the first quarter of 1984.</p></div>","PeriodicalId":101054,"journal":{"name":"Radiation Physics and Chemistry (1977)","volume":"25 1","pages":"Pages 263-269"},"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)90272-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53764419","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: 1
Radiation processing of dry food ingredients - a review 干制食品配料辐射加工研究进展
Radiation Physics and Chemistry (1977) Pub Date : 1985-01-01 DOI: 10.1016/0146-5724(85)90273-0
J. Farkas
{"title":"Radiation processing of dry food ingredients - a review","authors":"J. Farkas","doi":"10.1016/0146-5724(85)90273-0","DOIUrl":"10.1016/0146-5724(85)90273-0","url":null,"abstract":"<div><p>Radiation decontamination of dry ingredients, herbs and enzyme preparations is a technically feasible, economically viable and safe physical process. The procedure is direct, simple, requires no additives, does not leave residues and is highly efficient. Its dose requirement is moderate. Radiation doses of 3 to 10 kGy proved to be sufficient to reduce the viable cell counts to a satisfactory level. Ionizing radiations do not cause any significant rise in temperature and the flavour, texture or other important technological or sensory properties of most ingredients are not influenced at radiation doses necessary for a satisfactory decontamination. The microflora surviving the cell-count reduction by irradiation is more sensitive to subsequent food processing treatments than the microflora of untreated ingredients. Recontamination can be prevented since the product can be irradiated in its final packaging. Irradiation can be carried out in commercial containers and it results in considerable savings of energy and labour as compared to alternative decontamination techniques. Radiation processing of dry ingredients is an emerging technology in several countries and more-and-more clearances on irradiated foods are issued or expected to be granted in the near future.</p></div>","PeriodicalId":101054,"journal":{"name":"Radiation Physics and Chemistry (1977)","volume":"25 1","pages":"Pages 271-280"},"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)90273-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53764448","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: 27
Food irradiation: Progress in Canada 食品辐照:加拿大的进展
Radiation Physics and Chemistry (1977) Pub Date : 1985-01-01 DOI: 10.1016/0146-5724(85)90274-2
Bruce K. Wilson
{"title":"Food irradiation: Progress in Canada","authors":"Bruce K. Wilson","doi":"10.1016/0146-5724(85)90274-2","DOIUrl":"10.1016/0146-5724(85)90274-2","url":null,"abstract":"","PeriodicalId":101054,"journal":{"name":"Radiation Physics and Chemistry (1977)","volume":"25 1","pages":"Pages 281-285"},"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)90274-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53764502","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: 1
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 DOI: 10.1016/0146-5724(85)90068-8
Robert F. Anderson, Borivoj Vojnovic, Barry D. Michael
{"title":"The radiation-chemical yields of H3O+ and OH- as determined by nanosecond conductimetric measurements","authors":"Robert F. Anderson,&nbsp;Borivoj Vojnovic,&nbsp;Barry D. Michael","doi":"10.1016/0146-5724(85)90068-8","DOIUrl":"10.1016/0146-5724(85)90068-8","url":null,"abstract":"<div><p>The radiation-chemical yields of ionic species formed upon irradiation of water by 3.5 MeV electrons have been determined directly using dc conductivity and optical measurements. Yields (expressed in μmol J<sup>-1</sup>) at 10 and 110 ns after the end of a 10 ns pulse are: for H<sub>3</sub>O<sup>+</sup> = 0.371, 0.320; for OH<sup>-</sup> = 0.082, 0.045, and for e<sup>-</sup><sub>aq</sub> = 0.299 and 0.275, respectively.</p></div>","PeriodicalId":101054,"journal":{"name":"Radiation Physics and Chemistry (1977)","volume":"26 3","pages":"Pages 301-303"},"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)90068-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53754707","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: 22
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 DOI: 10.1016/0146-5724(85)90101-3
Akos Vertes
{"title":"Enhancement of neutralization reaction in colloidal ferric hydrous oxide","authors":"Akos Vertes","doi":"10.1016/0146-5724(85)90101-3","DOIUrl":"10.1016/0146-5724(85)90101-3","url":null,"abstract":"<div><p>Neutralization reaction was investigated in negative ferric hydrous oxide sols. The adsorption isotherm of OH<sup>-</sup> ions on the surface of colloidal particles was measured to provide the variation of their charge with pH. Impulse radiolysis generated the reacting ions in the sol. Using a fast DC conductivity setup for detection, a significant increase in the neutralization rate coefficient was found at low OH<sup>-</sup> concentrations. The phenomenon was discussed in terms of the theory of diffusion controlled reactions for particles interacting with Coulomb and Yukawa potential.</p></div>","PeriodicalId":101054,"journal":{"name":"Radiation Physics and Chemistry (1977)","volume":"26 6","pages":"Pages 641-645"},"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)90101-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53755471","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: 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 DOI: 10.1016/0146-5724(85)90103-7
A. Płonka, J. Mayer, W. Lefik, J. Kroh
{"title":"Decay kinetics of the isothermal luminescence in nonpolar binary mixtures at 77 K","authors":"A. Płonka,&nbsp;J. Mayer,&nbsp;W. Lefik,&nbsp;J. Kroh","doi":"10.1016/0146-5724(85)90103-7","DOIUrl":"10.1016/0146-5724(85)90103-7","url":null,"abstract":"<div><p>The isothermal luminescence of γ-irradiated frozen 3-methylpentane (3MP)-methylcyclohexane (MCH) mixtures (3MP mole fraction from 0 to 0.96) containing naphthalene (Nph) was investigated at 77K. At high Nph concentration (2.5 <em>x</em> 10<sup>−2</sup>mol dm<sup>−&gt;3</sup>) the luminescence is due to molecular ion recombination by tunnelling. In the soft glass (0.96 mole fraction 3MP) at low Nph concentration (10<sup>-3</sup> mol dm<sup>-3</sup>) electron thermal detrapping seems to contribute to the emission. The experimental decay curves were interpreted based on the Bagdasar'yan relation as well as the continuous-time- random-walk formalism (assuming a first-order rate equation with a time dependent rate constant of the form <em>k</em>(<em>t</em>) = <em>B</em><em>t</em><sup>(<em>α</em>−1)</sup>.</p></div>","PeriodicalId":101054,"journal":{"name":"Radiation Physics and Chemistry (1977)","volume":"26 6","pages":"Pages 657-662"},"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)90103-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53755654","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: 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 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 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 DOI: 10.1016/0146-5724(85)90132-3
B. Jansen , A. Ludwicka , L.W. Storz
{"title":"Radiation induced modification of polyetherurethane films and tubes: Platelet adhesion and in vivo experiments","authors":"B. Jansen ,&nbsp;A. Ludwicka ,&nbsp;L.W. Storz","doi":"10.1016/0146-5724(85)90132-3","DOIUrl":"10.1016/0146-5724(85)90132-3","url":null,"abstract":"<div><p>The measurement of platelet adhesion to polyetherurethane films grafted (via the preswelling technique) with 2-hydroxyethyl methacrylate (HEMA) and acrylamide (AAm), performed by means of the stagnation point flow experiment (SPFE-test) as well as with the aid of the bioluminescence assay, is described. Platelet adhesion is found to decrease if the interfacial free energy γ<sub>sw</sub> of the polymer surfaces decreases. Adhesion to protein-coated, grafted polyetherurethane films (coated with albumin, γ-globulin, fibrinogen, fibronectin or a protein mixture) depends on the nature of the protein used: precoating of the films with albumin of γ-globulin leads to a decrease, precoating with fibrinogen or fibronectin to an increase in platelet adhesion.</p><p>Also we report about early experiences with HEMA-grafted polyetherurethane tubes in implantation experiments.</p></div>","PeriodicalId":101054,"journal":{"name":"Radiation Physics and Chemistry (1977)","volume":"25 4","pages":"Pages 529-535"},"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)90132-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53758538","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: 9
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信