Pub Date : 1900-01-01DOI: 10.18411/sr-10-12-2020-44
A. V. CHukarina
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.
{"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}
Pub Date : 1900-01-01DOI: 10.18411/gq-30-11-2020-11
P.P. ZHolnerovich
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.
{"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}
Pub Date : 1900-01-01DOI: 10.1051/e3sconf/201912104001
Dmitrii Aiduganov, D. Balkaev, M. Varfolomeev, D. Emelianov
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.
{"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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：