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| 1 | Research on continuous core-filling casting forming process of copper-clad aluminum bimetal composite material显示文摘A single forming equipment of bimetal continuous core-filling casting was designed and manufactured for the purpose of developing copper-aluminum composite materials.The characteristics of the equipment were as follows:the crystallizer composed of water jacket copper sleeve in which graphite sleeve was set, two melting furnaces with different diameters vertically distributed, the low furnace of melting copper linked with the crystallizer, continuous casting and core-filling proceeded at the meantime.The rational processing parameters were determined through a series of experiments:contact length from down crucible to water-cooling cupreous crystallizer, 20 mm;length of recooling spray jet under crystallizer, 95 mm;temperature of copper and aluminum, 1250-1320℃ and 700℃ respectively;pulling rate, 16 mm/min.The qualified copper-clad aluminum composite rods, the external and inner diameter of which was 40 mm and 24 mm respectively, could be drawn successfully on that basis.Tested by hydrostatic extrusion and drawing process, the boss ratios of the copperclad aluminum composite rods were maintained a relatively stable scope of about 0.59-0.65, which was not obviously changed by subsequent plastic processing. | He LIANG Zhiyong XUE Chunjing WU Qing LIU Yuan WU | 2010 | Acta Metallurgica Sinica(English Letters)2010,23,3: | 9 |
| 2 | Continuous unidirectional solidification of QAl9-4 Cu-Al alloy显示文摘A continuous unidirectional solidification equipment with the advantages of electric slag remelting, induction heating, continuous casting and unidirectional solidification was built to study the QAl9 4 Cu Al alloy. The results show that the electro slag induction continuous unidirectional solidification process can be used for the steady continuous unidirectional solidification of QAl9 4, and revitalizes the down pulling continuous unidirectional solidification process; that the temperature distribution in the mold wall reflects that of the molten metal in the mold, thus the temperature distribution in the mold wall can be used to control the electric slag induction continuous unidirectional solidification process; and that the mutual matching of the technological parameters is the key to stabilize the solidification process. | Chang Guowei(常国威) Yuan Junping(袁军平) Wang Zidong(王自东) Wu Chunjing(吴春京) Hu Hanqi(胡汉起) Miao Zhimin(苗治民) | 1999 | 中国有色金属学会会刊:英文版1999,9,3: | 8 |
| 3 | Immunity-and-matrix-regulatory cells derived from human embryonic stem cells safely and effectively treat mouse lung injury and fibrosis显示文摘Lung injury and fibrosis represent the most significant outcomes of severe and acute lung disorders,including COVID-19.However,there are still no effective drugs to treat lung injury and fibrosis.In this study,we report the generation of clinical-grade human embryonic stem cells(hESCs)-derived immunity-and matrix-regulatory cells(IMRCs)produced under good manufacturing practice requirements,that can treat lung injury and fibrosis in vivo.We generate IMRCs by sequentially differentiating hESCs with serum-free reagents.IMRCs possess a unique gene expression profile distinct from that of umbilical cord mesenchymal stem cells(UCMSCs),such as higher expression levels of proliferative,immunomodulatory and anti-fibrotic genes.Moreover,intravenous delivery of IMRCs inhibits both pulmonary inflammation and fibrosis in mouse models of lung injury,and significantly improves the survival rate of the recipient mice in a dose-dependent manner,likely through paracrine regulatory mechanisms.IMRCs are superior to both primary UCMSCs and the FDA-approved drug pirfenidone,with an excellent efficacy and safety profile in mice and monkeys.In light of public health crises involving pneumonia,acute lung injury and acute respiratory distress syndrome,our findings suggest that IMRCs are ready for clinical trials on lung disorders. | Jun Wu Dingyun Song Zhongwen Li Baojie Guo Yani Xiao Wenjing Liu Lingmin Liang Chunjing Feng Tingting Gao Yanxia Chen Ying Li Zai Wang Jianyan Wen Shengnan Yang Peipei Liu Lei Wang Yukai Wang Liang Peng Glyn Nigel Stacey Zheng Hu Guihai Feng Wei Li Yan Huo Ronghua Jin Ng Shyh-Chang Qi Zhou Liu Wang Baoyang Hu Huaping Dai Jie Hao | 2020 | Cell Research2020,30,9: | 7 |
| 4 | Effect of ferrovanadium inoculation on microstructure and properties of high speed steel显示文摘The effect of ferrovanadium inoculation on the microstructure and properties of high speed steel (HSS) used for rolls was studied. The results showed that the as-cast eutectic carbide network tends to be broken after ferrovanadium inoculation, and the carbides are changed to rod-like or nodular shape. After heat treatment, the carbides in the inoculated HSS are spheroidized and distributed more uniformly in the matrix. The impact toughness of high speed steel with ferrovanadium inoculation is obviously improved. The action mechanism of ferrovanadium inoculation on the microstructure of the alloy is also discussed. | Zhang Xipeng Kou Guojun Wu Chunjing Gan Zhaiping Zhao Wanzi Chuan Xiangzhao Ma Ye | 2008 | China Foundry2008,5,2: | 6 |
| 5 | Characteristics and geological significance of the eclogites from the Tongbai Mountains, Henan Province显示文摘Some eclogites and the related high-P metamorphic belt have been found for the first time from the Tongbai Mountains, Henan Province, where the eclogites and their probable retrogressive products —— garnet amphibolites —— occur as lenses in mica-schists. The fresheclogites comprise garnet, omphacite, quartz, rutile, phengite, barroisite, etc. The composi- | Chunjing Wei Yuxin Wu Yunyan Ni Bin Chen Shiguang Wang | 1999 | Chinese Science Bulletin1999,44,22: | 4 |
| 6 | Effects of correlative factors on the interdendritic melt flow brought by the bulge in continuous casting slabs显示文摘The effects of various factors on the flow speed of interdendritic melt were analyzed in detail in the process of continuous casting slabs. When the solid-liquid interface bends periodically, the expression of solute distribution in the columnar crystal zone was deduced, and the quantitative calculation was also made. The results show that the bulge and the interdendritic spacing are responsible for the flow speed of interdendritic melt. At the initial stage of solidification the bulge operates, and at the final stage the interdendritic spacing operates. The experimental results of macrosegregation in the slabs validated the calculated results of the flow speed of interdendritic melt, which shows that the calculated results are basically consistent with the experimental ones. | Shuying Chen Guowei Chang Jianzhong Wang Chunjing Wu | 2008 | Journal of University of Science and Technology Beijing2008,15,4: | 3 |
| 7 | Epithelial-mesenchymal transition status of circulating tumor cells in breast cancer and its clinical relevance显示文摘Objective:Circulating tumor cells(CTCs)play a critical role in cancer metastasis,but their prevalence and significance remain unclear.This study attempted to track the epithelial-mesenchymal transition(EMT)status of CTCs in breast cancer patients and investigate their clinical relevance.Methods:In this study,the established negFACS-IF:E/M platform was applied to isolate rare CTCs and characterize their EMT status in breast cancer.A total of 89 breast cancer patients were recruited,including stage 0–III(n=60)and late stage(n=29)cases.Results:Using the negFACS-IF:E/M platform,it was found that in human epidermal growth factor receptor 2(HER2)+patients,mesenchymal CTCs usually exhibited a high percentage of HER2+cells.Stage IV breast cancer patients had considerably more CTCs than stage 0–III patients.Among stage 0–III breast cancers,the HER2 subtype included a significantly higher percentage of mesenchymal and biphenotypic(epithelial and mesenchymal)CTCs than the luminal A or B subtypes.Among stage IV patients,CTCs were predominantly epithelial in cases with local recurrence and were more mesenchymal in cases with distant metastasis.By applying a support vector machine(SVM)algorithm,the EMT status of CTCs could distinguish between breast cancer cases with metastasis/local recurrence and those without recurrence.Conclusions:The negFACS-IF:E/M platform provides a flexible and generally acceptable method for the highly sensitive and specific detection of CTCs and their EMT traits in breast cancer.This study demonstrated that the EMT status of CTCs had high clinical relevance in breast cancer,especially in predicting the distant metastasis or local recurrence of breast cancer. | Jiaojiao Zhou Xuan Zhu Shijie Wu Jingxin Guo Kun Zhang Chunjing Xu Huihui Chen Yuxi Jin Yuting Sun Shu Zheng Yiding Chen | 2020 | Cancer Biology & Medicine2020,17,1: | 3 |
| 8 | Unraveling specific role of carbon matrix over Pd/quasi-Ce-MOF facilitating toluene enhanced degradation显示文摘Metal organic frameworks(MOFs)derivatives represented by quasi-MOFs have excellent physical and chemical properties and can be applied for the catalytic combustion of volatile organic compounds(VOCs).In this work,Pd/quasi-Ce-BTC synthesized by simple one-step Npyrolysis was applied to the oxidation of toluene,showing excellent toluene catalytic activity(T_(90)=175℃,30000 mL/(g·h)).Microscopic analyses indicate the formation and interaction of a carbon matrix composite quasi-MOF structure interface.The results show that the amorphous carbon matrix formed during the partial pyrolysis of Ce-BTC significantly improves the adsorption and activation capacity of toluene in the reaction,and constructs a reductive system to maintain high concentrations of Ce^(3+)and Pd^(0),which can facilitate the activation and utilization of oxygen in reaction.Quasi in-situ XPS proves that carbon matrix is indirectly involved in the activation and storage of oxygen,and Pd^(0)is the crucial active site for the activation of oxygen.Stability and water resistance tests display good stability of Pd/quasi-Ce-BTC.This work provides a potential method for designing quasi-MOF catalysts towards VOCs effective abatement. | Chunjing Su Zhi Li Mengqi Mao Wenhua Ye Jinping Zhong Quanming Ren Hairong Cheng Haomin Huang Mingli Fu Junliang Wu Yun Hu Daiqi Ye Haihong Xu | 2022 | Journal of Rare Earths2022,40,11: | 2 |
| 9 | Orthogonal tests of copper-clad aluminum bimetal continuous casting by nitrogen pressure core-illing显示文摘To provide theoretical basis and practical guidance for preparing composite rods by direct continuous casting, copper-clad aluminum composite rods of external copper layer diameter 12 mm and inner aluminum core diameter 8 mm were manufactured. Orthogonal tests consisted of three factors and three levels were carried out to research the effects of melting copper temperature, continuous casting speed and nitrogen pressure on the performance of composite rods. Results showed that nitrogen pressure is the most important factor in influencing the surface quality; continuous casting speed is the most important factor in influencing copper & aluminum inter diffusion amount. Nitrogen pressure can noticeably improve the surface quality and make the rods easily be drawn out, but the surface quality does not show visible improvement when the nitrogen pressure is above 0.05 MPa. Measured by tests, the compound layer can be divided into three types according to its cladding layer degree: deficient cladding, normal cladding and excess cladding. The diameter of normal copper-clad aluminum composite rods can be successfully drawn less than 0.6 mm without annealing. | Xue Zhiyong Liang He Yu Wanhua Wu Chunjing | 2013 | China Foundry2013,10,6: | 2 |
| 10 | Predicting audi- ence gender in online content-sharing social networks 显示文摘 | Xiao Chunjing Zhou Fan Wu Yue | 2013 | Journal of the American Society for Information Science and Technology2013,64,6: | 1 |
| 11 | MALE STERILITY 3 encodes a plant homeodomain-finger protein for male fertility in soybean显示文摘Male-sterile plants are used in hybrid breeding to improve yield in soybean(Glycine max(L.)Merr.).Developing the capability to alter fertility under different environmental conditions could broaden germplasm resources and simplify hybrid production.However,molecular mechanisms potentially underlying such a system in soybean were unclear.Here,using positional cloning,we identified a gene,MALE STERILITY 3(MS3),which encodes a nuclear-localized protein containing a plant homeodomain(PHD)-finger domain.A spontaneous mutation in ms3 causing premature termination of MS3 translation and partial loss of the PHD-finger.Transgenetic analysis indicated that MS3 knockout resulted in nonfunctional pollen and no selfpollinated pods,and RNA-seq analysis revealed that MS3 affects the expression of genes associated with carbohydrate metabolism.Strikingly,the fertility of mutant ms3 can restore under longd conditions.The mutant could thus be used to create a new,more stable photoperiod-sensitive genic male sterility line for two-line hybrid seed production,with significant impact on hybrid breeding and production. | Jingjing Hou Weiwei Fan Ruirui Ma Bing Li Zhihui Yuan Wenxuan Huang Yueying Wu Quan Hu Chunjing Lin Xingqi Zhao Bao Peng Limei Zhao Chunbao Zhang Lianjun Sun | 2022 | Journal of Integrative Plant Biology2022,64,5: | 1 |
| 12 | Magnetic property of Chinese loess and its paleoelimate significance显示文摘 | Zhu Rixiang Li Chunjing Wu Harming | 1995 | Science in China : Series B1995,38,2: | 1 |
| 13 | , Progress in development of CLAM steel and fabrication of small TBM in China显示文摘 | Qunying Huang Chunjing Li Qingsheng Wu | 2011 | Journal of Nuclear Materials2011,417,: | 1 |
| 14 | A new extension of quadratic B zier curves with multiple shape parameters显示文摘 | Wu Beibei Xie Jiqiang Li Chunjing | 2014 | Journal of Information & Computational Science2014,11,9: | 1 |
| 15 | A New ^(40)Ar-^(39)Ar Dating Result of Volcanic Activities in the Mid-Late Miocene in the Liuhe Region, Nanjing City显示文摘Objective The timing of the Neogene basalts in the Liuhe area of Nanjing has always been a research focus.The development of'Investigation on Active Structure and Crust Stability of the Yangtze River Economic Belt'project has provided new opportunities to better understand this issue.The collection site of basalt samples for this study was Fangshan in the Liuhe district of Nanjing(sampling point:32°18′29.07′′N,118°59′20.80′′ | WU Kungang WU Zhonghai ZHAO Xitao ZHOU Chunjing YANG Xiaodong GAO Kun | 2018 | Acta Geologica Sinica(English Edition)2018,92,5: | 0 |
| 16 | Late Cenozoic Normal Faulting on the Western Side of Wenquan Graben, Central Qianghai-Xizang(Tibet) Plateau显示文摘A near NS-strike east-dipping normal fault is developed on the western side of Wenquan graben in the central Qinghai-Xizang(Tibet) Plateau. It is the western marginal fault of the graben and has been intensely active. It is a product of the near EW extension and deformation of the central northern Qinghai-Xizang(Tibet) Plateau since the late Cenozoic under the effect of the collision of the India and Eurasia plates. Since the late Cenozoic, the maximum vertical displacement on the fault was greater than 2.1km, and the dislocated Mesozoic fold stratum reveals a maximum accumulative throw of 6.0±2.2km. Quaternary faulting took place many times along the fault, creating multi-set piedmont fault facets and multi-level fault scarplets. According to the height of fault scarps that result from the vertical offset of the late Quaternary strata and geomorphic provinces, the maximum slip rate of the fault is estimated to have been less than 1.2mm/a since the late Quaternary, averaging 0.45mm/a. The trenching across the fault reveals that at least 3 paleoearthquakes of varied magnitudes have occurred since the late Epipleistocene. In view of the characteristics of Cenozoic faulting, it is concluded that the fault will act as a dominant seismogenic fault for earthquakes of M6.0 to M7.0 that are most likely to occur in the future. | Wu Zhonghai Ye Peisheng Liu Qisheng Wu Zhenhan Hu Daogong Zhao Xitao Zhou Chunjing | 2005 | Earthquake Research in China2005,19,2: | 0 |
| 17 | Tectonic Stress Analysis of Future Large Earthquake Zones along the Bayan Har Block Boundary,Tibet Plateau显示文摘The Bayan Har block is mainly bounded by the east Kunlun fault zone to the north,Garzê-Yushu-Xianshuihe fault zone to the south and Longmenshan fault zone to the east(Fig.1).In the past 20 years,large earthquakes have occurred frequently along this block’s boundaries,which has received much attention among geoscientists.Whether large earthquakes will happen(and where)along this block’s boundary faults in the future are two key problems that need to be addressed.This study calculates the accumulated tectonic stress and superposition of | ZHOU Chunjing ZHAO Wenjin WANG Lianjie WU Zhonghai | 2015 | Acta Geologica Sinica(English Edition)2015,89,2: | 0 |
| 18 | China's Atomic Clocks Assist More Accurate Navigation显示文摘1 HYDROGEN MASER HELPS TO REDUCE DEPENDENCE ON GROUND At 07:13 Beijing time on September 30,2015,a LM-3B rocket successfully launched the fourth next-generation Bei Dou navigation satellite,which carried a hydrogen maser(H maser)for the first time.The H maser has started operation after onorbit commissioning with all performance indexes normal. | cao chunyan li chunjing wu wei wang xu | 2017 | Aerospace China2017,18,1: | 0 |