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Performance of rolling piston type rotary compressor using fullerenes (C70) and NiFe

Ruixiang WANG,Yihao ZHANG,Yi LIAO

《能源前沿（英文）》 2020年 第14卷 第3期   页码 644-648 doi: 10.1007/s11708-017-0453-y

摘要： A novel way for a compressor to improve its coefficient of performance was proposed in this paper. Fullerenes (C70) and NiFe O nanocomposites were modified by span 80 and dispersed in refrigeration oil by solid grinding (SG). Besides, the tribological properties of the nanocomposites were investigated using a four ball friction tester. The results show that when the mass concentration of fullerenes nanocomposite is higher than 60 ppm and the concentration of nano-oil is 2 g/L, the friction coefficient decreases from 0.13 to 0.06 which means the wear is reduced. The coefficient of performance of the compressor under the air conditioning test condition can be raised by 1.23%.

关键词： rotary compressor     friction coefficient     nanocomposite materials     coefficient of performance     fullerenes (C70)    

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integration technology in Brazil’s superlarge deep-water offshore oil and gas unit project (FPSO P67/P70

《工程管理前沿（英文）》 2022年 第9卷 第2期   页码 349-353 doi: 10.1007/s42524-022-0187-3

关键词： Brazil FPSO P67/P70     superlarge     dry towing operation     construction integration     risk control management    

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节地节投资节油70%彻底不堵车城市新模式

董国良

《中国工程科学》 2006年 第8卷 第1期   页码 11-17

摘要：

提出了“城市基因改造论”和“畅通城市新模式”。目前城市“有机体”中存在着致病基因——“空间错位”，正是这一致病基因，导致产生了影响城市可持续发展的十大问题：城市占地多、效率低、能耗高、污染重、停车难、治安差、不宜居，以及交通事故多、交通投资巨大等。城市交通问题应该从“城市交通-城市空间-经济-社会”四个层次综合研究，“跳出交通看交通”，铲除“空间错位”这个基因，才能一揽子解决城市交通和城市可持续发展的诸多问题。通过分别构筑车与人的空间，将一个混乱的城市空间变为两个自由空间，从而构建“畅通城市新模式”，既可实现《雅典宪章》所提出的寻找新的街道系统以适应汽车交通特性［1］，又可实现建设“以人为本”节约宜人型城市的新目标。

关键词： 城市     交通     可持续发展    

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Prokaryotic expression and purification of fusion protein HSP70-EGFP and its application in the study

QU Ping, SUI Yanfang, MA Jiahai, CHEN Guangsheng, LIU Libing, CHEN Jiankang, LIU Fang'e

《医学前沿（英文）》 2008年 第2卷 第1期   页码 82-86 doi: 10.1007/s11684-008-0015-0

摘要： To study the endocytic activity of dendritic cells (DCs) by obtaining fusion protein HSP70-EGFP as exogenous antigen and loading it with DCs derived from human peripheral blood. Fusion protein HSP70-EGFP was prokaryotically expressed, isolated and purified. DCs were isolated and cultured from human peripheral blood. The DCs were divided into 3 groups in the endocytic experiment. There were 10 DCs in each group. Group 1 and 2 were respectively incubated for 30 min. with HSP70-EGFP and EGFP. Group 3 was incubated with HSP70 for 30 min, and then incubated for 30 min. with HSP70-EGFP. Subsequently, 3 groups were placed in an incubator at 37°C for 0.5, 1, 2 and 24 h. Flow cytometry (FCM) was adopted to detect the amount of DCs with EGFP inside. IL-12 Eli-spot was adopted to detect the amount of DCs which secreted IL-12. There were 5 types in the experiment: LPS, inactive LPS, HSP70-EGFP, EGFP and no antigen. Fusion protein HSP70-EGFP was successfully obtained and its molecular weight was 97 000. It accounted for 35.32% of the total protein. Under irradiation of an ultraviolet lamp, the protein solution sent out viridescent fluorescence. The result detected by FCM indicated that after incubation for 0.5 h at 37°C, the positive rate in group 1 was 63%, while the other 2 groups were negative. After incubation for 1, 2 and 24 h at 37°C, the positive rates in the 3 groups were above 80%. The IL-12 Eli-spot examination shows that with HSP70-EGFP being loaded, the amount of DCs secreting IL-12 was 134.09 ± 31.78/10 cells, a little lower than that of DCs with LPS loaded (with the average point of 156.36 ± 15.73). There was no significant difference between the 2 groups ( < 0.01). By contrast, both of them were significantly higher than inactive LPS-(33.78 ± 1.40)/10 cells and EGFP-loaded (23.13 ± 4.57)/10 cells DC groups in the amount of DCs secreting IL-12 ( < 0.01). The results suggest that receptor-mediated phagocytosis plays a main role in the preliminary stage of DCs internalizing HSP70-EGFP. With increasing incubation time, pinocytosis begins to dominate. HSP70-EGFP may promote DCs to secret cell factor IL-12.

关键词： significant difference     irradiation     peripheral     preliminary     EGFP    

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祼孔长水平井苏75-70-6H连续压裂微地震监测

王万迅,叶连池,王立治,段正中

《中国工程科学》 2012年 第14卷 第4期   页码 4-7

摘要：

苏75-70-6H井是依靠国产技术完成的规模最大的裸孔水平井压裂井，水平段南北走向。

关键词： 压裂     微地震监测     裂缝    

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国际电化学学会第70届年会（70th Annual Meeting of the International Society of Electrochemistry）

会议日期： 2019年08月04日

会议地点： 南非/德班

主办单位： 国际电化学学会（ISE）

Dispersion of “guava-like” silica/polyacrylate nanocomposite particles in polyacrylate matrix

QI Dongming, YANG Lei, WU Minghua, SHAO Jianzhong, BAO Yongzhong

《化学科学与工程前沿（英文）》 2008年 第2卷 第2期   页码 127-134 doi: 10.1007/s11705-008-0033-0

摘要： A series of “guava-like” silica/polyacrylate nanocomposite particles with close silica content and different grafting degrees were prepared via mini-emulsion polymerization using 3-(trimethoxysilyl)propyl methacrylate (TSPM) modified silica/acrylate dispersion. The silica/polyacrylate composite particles were melt-mixed with unfilled polyacrylate (PA) resin to prepare corresponding silica/polyacrylate molded composites and the dispersion mechanism of these silica particles from the “guava-like” composite particles into polyacrylate matrix was studied. It was calculated that about 110 silica particles were accumulated in the bulk of every silica/polyacrylate composite latex particle. Both the solubility tests of silica/polyacrylate composite latex particles in tetrahydrofuran (THF) and the section transmission electron microscope (TEM) micrographs of silica/polyacrylate molded composites indicated that the grafting degree of silica particles played a crucial role in the dispersion of silica/polyacrylate composite particles into the polyacrylate matrix. When the grafting degree of polyacrylate onto silica was in a moderate range (ca. 20%–70%), almost all of silica particles in these “guava-like” composite particles were dispersed into the polyacrylate matrix in a primary-particle-level. However, at a lower grafting degree, massive silica aggregations were found in molded composites because of the lack of steric protection. At a greater grafting degree (i.e., 200%), a cross-linked network was formed in the silica/polyacrylate composite particles, which prevented the dispersion of composite particles in THF and polyacrylate matrix as primary particles.

关键词： silica/polyacrylate composite     cross-linked network     –70     guava-like     TEM    

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标题 作者 时间 类型 操作

Performance of rolling piston type rotary compressor using fullerenes (C70) and NiFe

Ruixiang WANG,Yihao ZHANG,Yi LIAO

期刊论文

integration technology in Brazil’s superlarge deep-water offshore oil and gas unit project (FPSO P67/P70

期刊论文

节地节投资节油70%彻底不堵车城市新模式

董国良

期刊论文

Prokaryotic expression and purification of fusion protein HSP70-EGFP and its application in the study

QU Ping, SUI Yanfang, MA Jiahai, CHEN Guangsheng, LIU Libing, CHEN Jiankang, LIU Fang'e

期刊论文

祼孔长水平井苏75-70-6H连续压裂微地震监测

王万迅,叶连池,王立治,段正中

期刊论文

国际电化学学会第70届年会（70th Annual Meeting of the International Society of Electrochemistry）

2019年08月04日

会议信息

Dispersion of “guava-like” silica/polyacrylate nanocomposite particles in polyacrylate matrix

QI Dongming, YANG Lei, WU Minghua, SHAO Jianzhong, BAO Yongzhong

期刊论文