Coping during the COVID-19 pandemic in the cleaning staff of a public hospital

IF 3.2 2区 哲学 Q1 EDUCATION & EDUCATIONAL RESEARCH Minerva Pub Date : 2023-12-10 DOI:10.47460/minerva.v2023ispecial.144
Hector M. Mendoza Bustamante, Segundo Alcides García M., Ramón E. Cevallos Cedeno, Gonzalo Oswaldo García Vinces
{"title":"Coping during the COVID-19 pandemic in the cleaning staff of a public hospital","authors":"Hector M. Mendoza Bustamante, Segundo Alcides García M., Ramón E. Cevallos Cedeno, Gonzalo Oswaldo García Vinces","doi":"10.47460/minerva.v2023ispecial.144","DOIUrl":null,"url":null,"abstract":"The present work aimed to evaluate the effectiveness of Ca(OH)2 obtained from eggshells as a catalyst in the transesterification of first-generation oil compared to catalysts such as Na(OH) and Ca(OH)2.GR. The eggshells were subjected to thermal treatment in a muffle furnace with temperature intervals to reduce CaCO3 to CaO. Once the calcium oxide was obtained, it was mixed with distilled water, which evaporated over time due to the exothermic reaction of CaO conversion to produce Ca(OH)2. The results showed that Ca(OH)2.GR has greater efficacy than Ca(OH)2 obtained from eggshells, while Na(OH) proved superior to the other catalysts used in the study","PeriodicalId":47427,"journal":{"name":"Minerva","volume":"773 ","pages":""},"PeriodicalIF":3.2000,"publicationDate":"2023-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Minerva","FirstCategoryId":"98","ListUrlMain":"https://doi.org/10.47460/minerva.v2023ispecial.144","RegionNum":2,"RegionCategory":"哲学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"EDUCATION & EDUCATIONAL RESEARCH","Score":null,"Total":0}
引用次数: 0

Abstract

The present work aimed to evaluate the effectiveness of Ca(OH)2 obtained from eggshells as a catalyst in the transesterification of first-generation oil compared to catalysts such as Na(OH) and Ca(OH)2.GR. The eggshells were subjected to thermal treatment in a muffle furnace with temperature intervals to reduce CaCO3 to CaO. Once the calcium oxide was obtained, it was mixed with distilled water, which evaporated over time due to the exothermic reaction of CaO conversion to produce Ca(OH)2. The results showed that Ca(OH)2.GR has greater efficacy than Ca(OH)2 obtained from eggshells, while Na(OH) proved superior to the other catalysts used in the study
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
一家公立医院的清洁人员在 COVID-19 大流行期间的应对措施
与 Na(OH) 和 Ca(OH)2.GR 等催化剂相比,本研究旨在评估从蛋壳中提取的 Ca(OH)2 作为催化剂在第一代油的酯交换反应中的有效性。蛋壳在马弗炉中进行热处理,温度间隔将 CaCO3 还原成 CaO。获得氧化钙后,将其与蒸馏水混合,由于 CaO 转化产生 Ca(OH)2 的放热反应,蒸馏水会随着时间的推移而蒸发。结果表明,Ca(OH)2.GR 比从蛋壳中获得的 Ca(OH)2 更有效,而 Na(OH) 则优于研究中使用的其他催化剂。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Minerva
Minerva Multiple-
CiteScore
5.20
自引率
4.30%
发文量
26
期刊介绍: Minerva is devoted to the study of ideas, traditions, cultures and institutions in science, higher education and research. It is concerned no less with history than with present practice, and with the local as well as the global. It speaks to the scholar, the teacher, the policy-maker and the administrator. It features articles, essay reviews and ''special'' issues on themes of topical importance. It represents no single school of thought, but welcomes diversity, within the rules of rational discourse. Its contributions are peer-reviewed. Its audience is world-wide.
期刊最新文献
The EUropeanisation of Research Infrastructure Policy Between Delivery and Luck: Projectification of Academic Careers and Conflicting Notions of Worth at the Postdoc Level Benchmarking and the Technicization of Academic Discourse: The Case of the EU at-Risk of Poverty or Social Exclusion Composite Indicator Strategic Bureaucracy: The Convergence of Bureaucratic and Strategic Management Logics in the Organizational Restructuring of Universities The Therapeutic University
×
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
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 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 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1