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On the Preparation of Low-Temperature-Rise and Low-Shrinkage Concrete Based on Phosphorus Slag
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作者 Jianlong Jin jingjing ding +2 位作者 Long Xiong Ming Bao Peng Zeng 《Fluid Dynamics & Materials Processing》 EI 2024年第4期803-814,共12页
The effects of different contents of a MgO expansive agent and phosphorus slag on the mechanical properties,shrinkage behavior,and the heat of hydration of concrete were studied.The slump flow,setting time,dry shrinka... The effects of different contents of a MgO expansive agent and phosphorus slag on the mechanical properties,shrinkage behavior,and the heat of hydration of concrete were studied.The slump flow,setting time,dry shrinkage,and hydration heat were used as sensitive parameters to assess the response of the considered specimens.As shown by the results,in general,with an increase in the phosphorus slag content,the hydration heat of concrete decreases for all ages,but the early strength displays a downward trend and the dry shrinkage rate increases.The 90-d strength and dry shrinkage of concrete could be improved with a phosphorus residue content between 0%-20%,with the best performances in terms of mechanical properties and shrinkage characteristics being achieved for a content of 20 kg/m^(3).On the basis of these results,it can be concluded that appropriate amounts of phosphorus slag and MgO expansive agent can be used to improve the compressive strength of concrete in the later stage by reducing the hydration heat and dry shrinkage rate,respectively. 展开更多
关键词 Phosphorus slag MgO expansion agent mass concrete hydration heat
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Integration of α-fairness with DEA based resource allocation model 被引量:2
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作者 Gongbing Bi Hailing Wang jingjing ding 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2014年第6期1027-1036,共10页
How to allocate a resource efficiently and fairly attracts the attention of both researchers and practitioners. Data envelopment analysis(DEA) has been brought to bear on its solution. The existing literature applie... How to allocate a resource efficiently and fairly attracts the attention of both researchers and practitioners. Data envelopment analysis(DEA) has been brought to bear on its solution. The existing literature applies Gini coefficient to measure the fairness in the resource allocation process. However, the Gini coefficient is inapplicable in many applications. This paper proposes a novel centralized resource allocation model based on DEA that considers both the efficiency and the fairness. This paper adopts a notion of fairness, namely α-fairness that is well studied in welfare economics and is of practical significance. The new model integratesα-fairness with DEA to support resource allocation decisions. It aids decision makers in making a trade-off between the efficiency and the fairness. An illustrative application is used to validate the proposed approach. 展开更多
关键词 data envelopment analysis(DEA) resource alloca-tion EFFICIENCY FAIRNESS α-fairness Gini coefficient
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化妆品乳液及乳化新技术(Ⅳ)——油包油乳液的构建及其应用 被引量:1
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作者 丁晶晶 倪鑫炯 +1 位作者 杨成 孙亚娟 《日用化学工业》 CAS 北大核心 2021年第8期711-718,共8页
乳液是由两种或多种不混溶的液体组成,其中不连续的液滴分散在连续相中。典型的乳液体系就是油-水体系,它在食品、制药、组织工程和化妆品行业都有许多重要的应用。在过去的几十年里,油包油乳液由于其独特的不含水性质,引起了人们极大... 乳液是由两种或多种不混溶的液体组成,其中不连续的液滴分散在连续相中。典型的乳液体系就是油-水体系,它在食品、制药、组织工程和化妆品行业都有许多重要的应用。在过去的几十年里,油包油乳液由于其独特的不含水性质,引起了人们极大的兴趣。这些油包油乳液是对传统油-水乳液体系的一个补充,它使在乳液体系中使用与水不相容的化学物质成为了现实。而且,与油-水乳液体系类似,嵌段共聚物和固体颗粒也可用来稳定油包油乳液。文章首先介绍了油包油乳液的构建方法和形成机制,概述了油包油乳液稳定策略的最新进展,探索了油包油乳液在医药、聚合和化妆品领域的应用,最后对油包油乳液的未来发展方向进行了总结展望,为油包油乳液的构建及应用开发提供借鉴。 展开更多
关键词 非水乳液 嵌段共聚物 固体颗粒
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The histopathological features of the explanted lungs from an end-stage COVID-19 patient 被引量:1
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作者 Kai Li Youjia Yu +9 位作者 ding Li Changxing Luan Li Hu Jie Wang jingjing ding Yanfang Yu Hang Yang Jingyu Chen Feng Chen Chuan Su 《Forensic Sciences Research》 CSCD 2020年第4期348-350,共3页
Although the pathological findings of coronavirus disease 2019(COVID-19)associated with acute respiratory distress syndrome(ARDS)have been reported in previous studies,the data of histopatho-logical features of end-st... Although the pathological findings of coronavirus disease 2019(COVID-19)associated with acute respiratory distress syndrome(ARDS)have been reported in previous studies,the data of histopatho-logical features of end-stage COVID-19 lungs are still lacking.We have previously reported the clini-cal features and managements of three COVID-19 patients with irreversible deterioration of pulmonary function who received lung transplantation(LT)after being supported by extracorporeal membrane oxygenation(ECMO)[1]. 展开更多
关键词 DISTRESS ACUTE RESPIRATORY
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