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Growing seedlings of common apricot using biologically active substances in the steppe zone 利用生物活性物质在草原地带培育普通杏幼苗
collection of scientific papers Pub Date : 1900-01-01 DOI: 10.18411/sr-10-12-2020-44
A. V. CHukarina
{"title":"Growing seedlings of common apricot using biologically active substances in the steppe zone","authors":"A. V. CHukarina","doi":"10.18411/sr-10-12-2020-44","DOIUrl":"https://doi.org/10.18411/sr-10-12-2020-44","url":null,"abstract":"Effective agricultural methods of growing planting material of Crimean pine, Scots pine and green ash were determined when assessing their survival and growth in crops under fresh forest conditions.","PeriodicalId":187725,"journal":{"name":"collection of scientific papers","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126108247","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
Editing in the system of scientific knowledge 科学知识体系中的编辑
collection of scientific papers Pub Date : 1900-01-01 DOI: 10.18411/gq-30-11-2020-11
P.P. ZHolnerovich
{"title":"Editing in the system of scientific knowledge","authors":"P.P. ZHolnerovich","doi":"10.18411/gq-30-11-2020-11","DOIUrl":"https://doi.org/10.18411/gq-30-11-2020-11","url":null,"abstract":"The author considers the features of the concept of «editing» as a terminology unit in the system of scientific knowledge. In connection with the introduction of information and communication technologies, the increasing use of editing in various fields of activity, there was a need for a more precise definition of the concept as a term to eliminate contradictory statements in university textbooks and various handbooks on journalism and publishing. The author offers a refined definition of editing, which can be applied regardless of the place of editorial activity.","PeriodicalId":187725,"journal":{"name":"collection of scientific papers","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133945441","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
Effect of formation water and hydrochloric acid on the physical and chemical properties of polymer materials of high pressure pipelines used for transportation of crude oil 地层水和盐酸对高压原油输送管道高分子材料理化性质的影响
collection of scientific papers Pub Date : 1900-01-01 DOI: 10.1051/e3sconf/201912104001
Dmitrii Aiduganov, D. Balkaev, M. Varfolomeev, D. Emelianov
{"title":"Effect of formation water and hydrochloric acid on the physical and chemical properties of polymer materials of high pressure pipelines used for transportation of crude oil","authors":"Dmitrii Aiduganov, D. Balkaev, M. Varfolomeev, D. Emelianov","doi":"10.1051/e3sconf/201912104001","DOIUrl":"https://doi.org/10.1051/e3sconf/201912104001","url":null,"abstract":"The purpose of the work is to conduct a comparative analysis of the stability of two types of polymer coatings to the effects of formation water and hydrochloric acid based on the analysis of mechanical properties, thermal stability and surface morphology. To accomplish the task, modern physical-chemical methods were used: differential scanning calorimetry, microscopy, an electromechanical universal testing machine, a dilatometer. Simulation of the effect of water at elevated temperatures and pressures on the polymer coating samples was carried out in an autoclave-reactor, the study of the effect of acid was carried out in a glass beaker. On the basis of the work carried out, results were obtained that show similarities and differences in the behavior of the polymer samples studied. The change of the dynamic modulus of elasticity and the coefficient of linear thermal expansion with increasing temperature is investigated. In general, it has been shown that PE-RT polymer has better characteristics than PE polymer. However, both of them are stable to the exposure of formation water and hydrochloric acid and can protect corrosion of high pressure pipes connections.","PeriodicalId":187725,"journal":{"name":"collection of scientific papers","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129018526","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
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