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159篇 您的检索式:作者名="Qu Gang"
    题名 作者 年代 出处 被引量
1Ratios of T-helper 2 Cells to T-helper 1 Cells and Cytokine Levels in Patients with Hepatitis B显示文摘Ming-Hui Li Dan Zhang Lu Zhang Xiao-Jing Qu Yao Lu Ge Shen Shu-Ling Wu Min Chang Ru-Yu Liu Lei-Ping Hu Hong-Xiao Hao Wen-Hao Hua Shu-Jing Song Gang Wan Shun-Ai Liu Yao Xie 2017Chinese Medical Journal2017,,15:21
2Nature:骨髓微环境发生突变可导致造血干细胞异常显示文摘白血病骨髓微环境中支持血液发育的某些DNA突变可以驱动周围造血干细胞形成白血病,来自艾默里大学温希普癌症研究所和亚特兰大儿童健康中心的研究人员在国际学术期刊Nature上公布了他们的最新研究进展。许多致癌突变都作用于细胞自身。让细胞自身生长更快。相比之下,努南综合征小鼠模型上可以观察到间接的邻近细胞效应,努南综合征是一种能够增加白血病患病风险的遗传紊乱。Lei Dong, Wen-Mei Yu, Hong Zheng, Melinda Pauly, Muxiang Zhou Cheng-Kui Qu Mignon L. Loh Silvia T. Bunting Gang Huang Hal E. Broxmeyer David T. Scadden 2016现代生物医学进展2016,16,35:18
3Experimental investigation of the generation of large-amplitude internal solitary wave and its interaction with a submerged slender body显示文摘A principle of generating the nonlinear large-amplitude internal wave in a stratified fluid tank with large cross-section is proposed according to the‘jalousie’control mode.A new wave-maker based on the principle was manufactured and the experiments on the generation and evolution of internal solitary wave were conducted.Both the validity of the new device and applicability range of the KdV-type internal soliton theory were tested.Furthermore,a measurement technique of hydrodynamic load of internal waves was developed.By means of accurately measuring slight variations of internal wave forces exerted on a slender body in the tank,their interaction characteristics were determined.It is shown that through establishing the similarity between the model scale in the stratified fluid tank and the full scale in the numerical simulation the obtained measurement results of internal wave forces are confirmed to be correct.WEI Gang DU Hui XU XiaoHui ZHANG YuanMing QU ZiYun HU TianQun YOU YunXiang 2014Science China(Physics,Mechanics & Astronomy)2014,57,2:17
4Association of Cytokines with Alanine Aminotransferase, Hepatitis B Virus Surface Antigen and Hepatitis B Envelope Antigen Levels in Chronic Hepatitis B显示文摘Ming-Hui Li Yao Lu Lu Zhang Xing-Yue Wang Chong-Ping Ran Hong-Xiao Hao Dan Zhang Xiao-Jing Qu Ge Shen Shu-Ling Wu Wei-Hua Cao Tian-Lin Qi Ru-Yu Liu Lei-Ping Hu Min Chang Wen-Hao Hua Shun-Ai Liu Gang Wan Yao Xie 2018Chinese Medical Journal2018,,15:17
5Functional recovery following traumatic spinal cord injury mediated by a unique polymer scaffold seeded with neural stem cells and Schwann cells显示文摘背景最重要的目的在受伤针的绳索移植研究是为 axonal 生长提供有利环境。而且,新接枝的持续发现正在提供新潜在地有趣移植候选人。我们的目的是观察神经干细胞(NSC ) 的合作移植的词法、功能的修理效果, Schwann 装壁板圩(SC ) 并且 poly rats.Methods 的针的绳索损害上的 lactide-co-glycolide 酸(PLGA ) PLGA 的脚手架被制作。NSC 和 SC 是有教养的,与用 5-bromodeoxyuridine 标记的 NSC,并且 NSC/PLGA 或 NSC+SCs/PLGA 的建筑群被构造。36 只 Wistar 老鼠随机被划分成三个组:组织 A (PLGA 的移植) ,组织 B (NSC/PLGA 的移植) 并且组织 C (NSC+SCs/PLGA 的移植) 。正确 hemicord 的 3 公里长度在所有老鼠在显微镜下面被移开。PLGA 或 PLGA-celIs 的建筑群被植入进损害地点。Basso-Beattie-Bresnahan (BBB ) 运动分数,马达和更低的手足潜在的唤起的 somatosensory 被检验听说康复感觉并且在在损害以后的 4 个星期, 8 个星期, 12 个星期和 24 个星期的马达功能。所有恢复针的绳索损害( SCI )纸巾被观察与他染色, immunohistochemistry ,和 transelectronmicroscopy 到在 4 个星期识别移植房间和神经纤维的新生的幸存,迁居和区别, 8 个星期,在到在损害以后的 24 个星期的从 4 个星期的 injury.Results ( 1 )以后的 12 个星期和 24 个星期,移植房间的组的 BBB 运动分数比 non-cell-transplanted 组的那些好,特别组 C ( P 0.05 )。somatosensory 的振幅唤起了潜力(9 月) ,唤起马达的潜力(MEP ) 在组 B 和 C 在损害以后被改进,但是在 4 个星期的 9 月和 MEP 的振幅在损害以后在 12 个星期和 24 个星期是比那低的。与组 B 相比,在组 C 的 9 月和 MEP 的振幅被改进。9 月和 MEP 的振幅没在组 A 在损害以后被改进。(2 ) 他染色表明支架的体积减少了,在支架的房间的数字增加了。成长得最新的 capillaries 能也被看见。染色的 Immunohistochemistry 证明移植 NSC 能幸存并且移居直到 24 个星期和他们能区分进神经原和 oligodendrocytes。改革轴突与 transelectronmicroscopy 在支架房间建筑群被观察。上述表明在在损害,和他们能区分进各种各样的神经房间以后,移植 NSC 能在老鼠的针的绳索熬过并且移居直到 24 个星期的组 C.Conclusions 是更广泛的。cells/PLGA 的合作移植能支持受伤针的绳索的功能的恢复。共同移植的效果 NSC+SCs/PLGA 比独自移植 NSC/PLGA 好。CHEN Gang HU Yan-rong WAN Hong XIA Lei LI Jun-hua YANG Fei QU Xue WANG Shen-guo WANG Zhong-cheng 2010Chinese Medical Journal2010,,17:16
6Plasmacytoid Dendritic Cell Function and Cytokine Network Profiles in Patients with Acute or Chronic Hepatitis B Virus Infection显示文摘Ming-Hui Li Lu Zhang Dan Zhang Wei-Hua Cao Tian-Lin Qi Hong-Xiao Hao Xing-Yue Wang Chong-Ping Ran Xiao-Jing Qu Shun-Ai Liu Yao Lu Ge Shen Shu-Ling Wu Min Chang Ru-Yu Liu Lei-Ping Hu Wen-Hao Hua Gang Wan Jun Cheng Yao Xie 2018Chinese Medical Journal2018,,1:16
7Differential stem cell aging kinetics in Hutchinson-Gilford progeria syndrome and Werner syndrome显示文摘Hutchinson-Gilford 早衰症候群(HGPS ) 和沃纳症候群(WS ) 是二最好描绘的人的 progeroid 症候群。HGPS 被一个点变化在 lamin A (LMNA ) 基因引起,导致截断的蛋白质 productprogerin 的生产。WS 被变化在 WRN 基因引起,编码 loss-of-function RecQ DNA helicase。这里,由基因编辑,我们创造了 isogenic 人的胚胎的干细胞(转换字符) 与异质接合(G608G/+) 或同型结合(G608G/G608G ) LMNA 变化和 biallelic WRN 大美人为为 HGPS 和 WS 致病建模,分别地。当转换字符和 endothelial 房间(EC ) 没介绍早熟的老朽的任何特征时, HGPS 间充质、 WS 间充质的干细胞(MSC ) 与不同动力学显示出联系老化的显型。当 HGPS-MSCs 展出了迟了发作的尖锐早衰 characterisitcs 时, WS-MSCs 有早发作的温和早衰显型。一起拿,我们的学习比较并且形成对照不同病理 underpinning 二早衰混乱,并且提供可靠干细胞为病理学、生理的老化识别新治疗学的策略的基于的模型。Zeming Wu Weiqi Zhang Moshi Song Wei Wang Gang Wei Wei Li Jinghui Lei Yu Huang Yanmei Sang Piu Chan Chang Chen Jing Qu Keiichiro Suzuki Juan Carlos Izpisua Belmonte Guang-Hui Liu 2018Protein & Cell2018,9,4:15
8The Predictive Value of Baseline HBs Ag Level and Early Response for HBs Ag Loss in Patients with HBe Ag-positive Chronic Hepatitis B during Pegylated Interferon Alpha-2a Treatment显示文摘Objective To explore the predictive value of baseline HBsAg level and early response for HBsAg loss in patients with HBeAg-positive chronic hepatitis B during pegylated interferon alpha-2a treatment. Methods A total of 121 patients with HBeAg-positive chronic hepatitis B who achieved HBsAg loss were enrolled; all patients were treated with PEG-IFNα-2a 180 μg/week. Serum HBV DNA and serological indicators(HBsAg, anti-HBs, HBeAg, and anti-HBe) were determined before and every 3 months during treatment. Results The median treatment time for HBsAg loss was 84 weeks(7-273 weeks), and 74.38%(90 cases) of the patients needed extended treatment(> 48 weeks). The correlation between baseline HBsAg levels and the treatment time of HBsAg loss was significant(B = 14.465, t = 2.342, P = 0.021). Baseline HBsAg levels together with the decline range of HBsAg at 24 weeks significantly correlated with the treatment time of HBsAg loss(B = 29.862, t = 4.890, P = 0.000 and B = 27.993, t = 27.993, P = 0.005). Conclusion Baseline HBsAg levels and extended therapy are critical steps toward HBsAg loss. Baseline HBsAg levels together with early response determined the treatment time of HBsAg loss in patients with HBeAg-positive chronic hepatitis B during pegylated interferon alpha-2a treatment.LI Ming Hui ZHANG Lu QU Xiao Jing LU Yao SHEN Ge LI Zhen Zhen WU Shu Ling LIU Ru Yu CHANG Min HU Lei Ping HUA Wen Hao SONG Shu Jing WAN Gang XIE Yao 2017Biomedical and Environmental Sciences2017,30,3:14
9Municipal wastewater treatment in China:Development history and future perspectives显示文摘China has the world's largest and still growing wastewater sector and water market,thus its future development will have profound influence on the world.The high-speed development of China's wastewater sector over the past 40 years has forged its global leading treatment capacity and innovation ability.However,many problems were left behind,including underdeveloped sewers and sludge disposal facilities,low sustainability of the treatment processes,questionable wastewater treatment plant(WWTP)effluent discharge standards,and lacking global thinking on harmonious development between wastewater management,human society and the nature.Addressing these challenges calls for fundamental changes in target design,policy and technologies.In this mini-review,we revisit the development history of China's municipal wastewater management and identify the remaining challenges.Also,we highlight the future needs of sustainable development and exploring China's own wastewater management path,and outlook the future from several aspects including targets of wastewater management,policies and technologies,especially the new concept WWTP.Furthermore,we envisage the establishment of new-generation WWTPs with the vision of turning WWTP from a site of pollutant removal into a plant of energy,water and fertilizer recovery and an integrated part urban ecology in China.Jiuhui Qu Hongchen Wang Kaijun Wang Gang Yu Bing Ke Han-Qing Yu Hongqiang Ren Xingcan Zheng Ji Li Wen-Wei Li Song Gao Hui Gong 2019Frontiers of Environmental Science & Engineering2019,13,6:13
10Epidemiological Data of Work-Related Musculoskeletal Disorders—China,2018–2020显示文摘Summary What is already known about this topic?In recent decades,work-related musculoskeletal disorders(WMSDs)have become increasingly prominent and have become an important issue that is of universal concern and an urgent need to be solved in all countries of the world.What is added by this report?The top three industries or occupational groups with the highest standardized prevalence rate of WMSDs were flight attendants,medical staff,and vegetable greenhouses in that order.Women workers were 1.5 times more likely to suffer from WMSDs than men workers.Ning Jia Huadong Zhang Ruijie Ling Yimin Liu Gang Li Zaoliang Ren Yan Yin Hua Shao Hengdong Zhang Bing Qiu Meibian Zhang Dayu Wang Qiang Zeng Rugang Wang Jianchao Chen Danying Zhang Liangying Mei Yongquan Liu Jixiang Liu Chengyun Zhang Tianlai Li Qing Xu Ying Qu Xueyan Zhang Xin Sun Zhongxu Wang 2021China CDC weekly2021,3,18:13
11Re-Os dating of gold-bearing arsenopyrite of the Maoling gold deposit,Liaoning Province,Northeast China and its geological significance显示文摘The Maoling gold deposit, one of the large gold deposits in eastern Liaoning Province, NE China, is an ar- senopyrite-disseminated gold deposit with a resource of ap- proximately 25 t Au and an average Au grade of 3.2 g/t. Six arsenopyrites closely related to Au mineralization of the Maoling gold deposit are dated by Re-Os technique and de- fine a Re-Os isochron with an age of 2316±140 Ma, which suggests that the deposit was formed in the Paleoproterozoic era rather than in the Indosinian period as some early re- searchers suggested. High initial 187Os/188Os ratio of 1.32±0.48 indicates a crustal derivation of the ore-forming material of the deposit, which may be derived from rocks of the Gaixian formation of the Liaohe Group. Furthermore, the result also implies that the age of the Gaixian Formation in the Maoling district is older than 2316±140 Ma.YU Gang YANG Gang CHEN Jiangfeng QU Wenjun DU Andao HE Wei 2005Chinese Science Bulletin2005,50,14:12
12Experimental research on coal seam similar material proportion and its application显示文摘In this paper, the optimization design of the low strength mechanical test and orthogonal test have been analyzed in order to simulate the mechanical properties of thick and extra-thick coal seam accurately in a similar material simulation test. The results show that the specimen can reach a wider range of strength when cement has been used compared to that of gypsum, suggesting that cement is more suitable for making coal seam in similar material simulation tests. The uniaxial compressive strength is more sensitive to cement than coal or sand. The proportion of coal and sand do not play a decisive role in uniaxial compressive strength. The uniaxial compressive strength and specimen density decrease as the mass percent of coal and aggregate–binder ratio rise. There is a positive correlation between uniaxial compressive strength and density. The No. 5 proportion(cement: sand: water: activated carbon: coal = 6:6:7:1.1:79.9)was chosen to be used in the similar material simulation test of steeply dipping and extra-thick coal seam with a density of 0.913 g/cm^3 and an uniaxial compressive strength of 0.076 MPa which are in accordance with the similarity theory. The phenomenon of overburden stratum movement, fracture development and floor pressure relief were obtained during the similar material simulation test by using the proportion.Cheng Weimin Sun Lulu Wang Gang Du Wenzhou Qu Hongyuan 2016International Journal of Mining Science and Technology2016,26,5:12
13Species diversification and phylogeographical patterns of birds in response to the uplift of the Qinghai-Tibet Plateau and Quaternary glaciations显示文摘Fumin LEI Yanhua QU Gang SONG 2014Current Zoology2014,60,2:12
14Insight-HXMT observations of the first binary neutron star merger GW170817显示文摘Finding the electromagnetic(EM) counterpart of binary compact star merger, especially the binary neutron star(BNS) merger,is critically important for gravitational wave(GW) astronomy, cosmology and fundamental physics. On Aug. 17, 2017,Advanced LIGO and Fermi/GBM independently triggered the first BNS merger, GW170817, and its high energy EM counterpart,GRB 170817 A, respectively, resulting in a global observation campaign covering gamma-ray, X-ray, UV, optical, IR, radio as well as neutrinos. The High Energy X-ray telescope(HE) onboard Insight-HXMT(Hard X-ray Modulation Telescope) is the unique high-energy gamma-ray telescope that monitored the entire GW localization area and especially the optical counterpart(SSS17 a/AT2017 gfo) with very large collection area(~1000 cm^2) and microsecond time resolution in 0.2-5 MeV. In addition,Insight-HXMT quickly implemented a Target of Opportunity(ToO) observation to scan the GW localization area for potential X-ray emission from the GW source. Although Insight-HXMT did not detect any significant high energy(0.2-5 MeV) radiation from GW170817, its observation helped to confirm the unexpected weak and soft nature of GRB 170817 A. Meanwhile,Insight-HXMT/HE provides one of the most stringent constraints(~10^(-7) to 10^(-6) erg/cm^2/s) for both GRB170817 A and any other possible precursor or extended emissions in 0.2-5 MeV, which help us to better understand the properties of EM radiation from this BNS merger. Therefore the observation of Insight-HXMT constitutes an important chapter in the full context of multi-wavelength and multi-messenger observation of this historical GW event.TiPei Li ShaoLin Xiong ShuangNan Zhang FangJun Lu LiMing Song XueLei Cao Zhi Chang Gang Chen Li Chen TianXiang Chen Yong Chen YiBao Chen YuPeng Chen Wei Cui WeiWei Cui JingKang Deng YongWei Dong YuanYuan Du MinXue Fu GuanHua Gao He Gao Min Gao MingYu Ge YuDong Gu Ju Guan ChengCheng Guo DaWei Han Wei Hu Yue Huang Jia Huo ShuMei Jia LuHua Jiang WeiChun Jiang Jing Jin YongJie Jin Bing Li ChengKui Li Gang Li MaoShun Li Wei Li Xian Li XiaoBo Li XuFang Li YanGuo Li ZiJian Li ZhengWei Li XiaoHua Liang JinYuan Liao CongZhan Liu GuoQing Liu HongWei Liu ShaoZhen Liu XiaoJing Liu Yuan Liu YiNong Liu Bo Lu XueFeng Lu Tao Luo Xiang Ma Bin Meng Yi Nang JianYin Nie Ge OU JinLu Qu Na Sai Liang Sun Yin Tan Lian Tao WenHui Tao YouLi Tuo GuoFeng Wang HuanYu Wang Juan Wang WenShuai Wang YuSa Wang XiangYang Wen BoBing WU Mei Wu GuangCheng Xiao He Xu YuPeng Xu LinLi Yan JiaWei Yang Sheng Yang YanJi Yang AiMei Zhang ChunLei Zhang ChengMo Zhang Fan Zhang HongMei Zhang Juan Zhang Qiang Zhang Shu Zhang Tong Zhang Wei Zhang WanChang Zhang WenZhao Zhang Yi Zhang Yue Zhang YiFei Zhang YongJie Zhang Zhao Zhang ZiLiang Zhang HaiSheng Zhao JianLing Zhao XiaoFan Zhao ShiJie Zheng Yue Zhu YuXuan Zhu ChangLin Zou 2018Science China(Physics,Mechanics & Astronomy)2018,61,3:12
15The enhanced X-ray Timing and Polarimetry mission—eXTP显示文摘In this paper we present the enhanced X-ray Timing and Polarimetry mission—eXTP. eXTP is a space science mission designed to study fundamental physics under extreme conditions of density, gravity and magnetism. The mission aims at determining the equation of state of matter at supra-nuclear density, measuring effects of QED, and understanding the dynamics of matter in strong-field gravity. In addition to investigating fundamental physics, eXTP will be a very powerful observatory for astrophysics that will provide observations of unprecedented quality on a variety of galactic and extragalactic objects. In particular, its wide field monitoring capabilities will be highly instrumental to detect the electro-magnetic counterparts of gravitational wave sources.The paper provides a detailed description of:(1) the technological and technical aspects, and the expected performance of the instruments of the scientific payload;(2) the elements and functions of the mission, from the spacecraft to the ground segment.ShuangNan Zhang Andrea Santangelo Marco Feroci YuPeng Xu FangJun Lu Yong Chen Hua Feng Shu Zhang Sφren Brandt Margarita Hernanz Luca Baldini Enrico Bozzo Riccardo Campana Alessandra De Rosa YongWei Dong Yuri Evangelista Vladimir Karas Norbert Meidinger Aline Meuris Kirpal Nandra Teng Pan Giovanni Pareschi Piotr Orleanski QiuShi Huang Stephane Schanne Giorgia Sironi Daniele Spiga Jiri Svoboda Gianpiero Tagliaferri Christoph Tenzer Andrea Vacchi Silvia Zane Dave Walton ZhanShan Wang Berend Winter Xin Wu Jean J.M.in't Zand Mahdi Ahangarianabhari Giovanni Ambrosi Filippo Ambrosino Marco Barbera Stefano Basso Jörg Bayer Ronaldo Bellazzini Pierluigi Bellutti Bruna Bertucci Giuseppe Bertuccio Giacomo Borghi XueLei Cao Franck Cadoux Francesco Ceraudo TianXiang Chen Yu Peng Chen Jerome Chevenez Marta Civitani Wei Cui WeiWei Cui Thomas Dauser Ettore Del Monte Sergio Di Cosimo Sebastian Diebold Victor Doroshenko Michal Dovciak YuanYuan Du Lorenzo Ducci QingMei Fan Yannick Favre Fabio Fuschino JoséLuis Ga'lvez Min Gao MingYu Ge Olivier Gevin Marco Grassi QuanYing Gu YuDong Gu DaWei Han Bin Hong Wei Hu Long Ji ShuMei Jia WeiChun Jiang Thomas Kennedy Ingo Kreykenbohm Irfan Kuvvetli Claudio Labanti Luca Latronico Gang Li MaoShun Li Xian Li Wei Li ZhengWei Li Olivier Limousin HongWei Liu XiaoJing Liu Bo Lu Tao Luo Daniele Macera Piero Malcovati Adrian Martindale Malgorzata Michalska Bin Meng Massimo Minuti Alfredo Morbidini Fabio Muleri Stephane Paltani Emanuele Perinati Antonino Picciotto Claudio Piemonte JinLu Qu Alexandre Rachevski Irina Rashevskaya Jerome Rodriguez Thomas Schanz ZhengXiang Shen LiZhi Sheng JiangBo Song LiMing Song Carmelo Sgro Liang Sun Ying Tan Phil Uttley Bo Wang DianLong Wang GuoFeng Wang Juan Wang LangPing Wang YuSa Wang Anna L.Watts XiangYang Wen Jörn Wilms ShaoLin Xiong JiaWei Yang Sheng Yang YanJi Yang Nian Yu WenDa Zhang Gianluigi Zampa Nicola Zampa Andrzej A.Zdziarski AiMei Zhang ChengMo Zhang Fan Zhang Long Zhang Tong Zhang Yi Zhang XiaoLi Zhang ZiLiang Zhang BaoSheng Zhao ShiJie Zheng Yu Peng Zhou Nicola Zorzi J.Frans Zwart 2019Science China(Physics,Mechanics & Astronomy)2019,62,2:11
16Investigation on Work-Related Musculoskeletal Disorders--China, 2018−2019显示文摘What is already known about this topic?Work-related musculoskeletal disorders(WMSDs)have a high prevalence and seriously harmful,which has attracted extensive attention in various countries in the world.Currently,the occurrence and rules of WMSDs in key industries are not known in China.What is added by this report?The prevalence of WMSDs is relatively high among professional populations in key industries in China,with the most commonly affected body parts concentrated in neck,shoulders,and low back and increasing with age and working years.What are the implications for public health practice?This study determined the prevalence and distribution characteristics of WMSDs in key industries in China and provided scientific evidence to recommend for inclusion of WMSDs in the new revision of the list of occupational diseases in China.Ning Jia Huadong Zhang Ruijie Ling Yimin Liu Gang Li Zaoliang Ren Yan Yin Hua Shao Hengdong Zhang Bing Qiu Meibian Zhang Dayu Wang Qiang Zeng Rugang Wang Jianchao Chen Danying Zhang Liangying Mei Yongquan Liu Jixiang Liu Chengyun Zhang Tianlai Li Qing Xu Ying Qu Xueyan Zhang Xin Sun Zhongxu Wang 2020China CDC weekly2020,2,18:11
17Fabrication of commercial pure Ti by selective laser melting using hydride-dehydride titanium powders treated by ball milling显示文摘Micro-fine sphericalpowders are recommended for selective laser melting(SLM). However, they are mostly expensive due to the complex manufacturing technique and low yield. In this paper, using lowcost treated hydride-dehydride(HDH) Ti powders, commercial pure Ti(CP-Ti) was successfully fabricated by SLM. After 4-h milling, the resulting powders become near-spherical with no obvious angularity, and have optimal flowability with the apparent density of 1.64 ± 0.02 g/cm^3, tap density of 2.10 ± 0.04 g/cm^3,angle of repose 40.11?±0.09?, and Carr's index of 77.74 ± 0.15. The microstructure was determined with full acicular martensitic β phase. The CP-Ti can achieve superior mechanical properties with the ultimate tensile strength of 876.1 ± 20.5 MPa and elongation of(14.7 ± 0.5)%, which exhibit distinctly competitive compared to the as-cast CP-Ti or Ti-6 Al-4 V. Excellent mechanical properties together with its low-cost make SLM-fabricated CP-Ti from modified HDH Ti powders show promising applications.Wei Xu Shiqi Xiao Xin Lu Gang Chen Chengcheng Liu Xuanhui Qu 2019Journal of Materials Science & Technology2019,35,2:9
18Evolution of Surface Sensible Heat over the Tibetan Plateau Under the Recent Global Warming Hiatus显示文摘Based on regular surface meteorological observations and NCEP/DOE reanalysis data, this study investigates the evolution of surface sensible heat(SH) over the central and eastern Tibetan Plateau(CE-TP) under the recent global warming hiatus. The results reveal that the SH over the CE-TP presents a recovery since the slowdown of the global warming. The restored surface wind speed together with increased difference in ground-air temperature contribute to the recovery in SH.During the global warming hiatus, the persistent weakening wind speed is alleviated due to the variation of the meridional temperature gradient. Meanwhile, the ground surface temperature and the difference in ground-air temperature show a significant increasing trend in that period caused by the increased total cloud amount, especially at night. At nighttime, the increased total cloud cover reduces the surface effective radiation via a strengthening of atmospheric counter radiation and subsequently brings about a clear upward trend in ground surface temperature and the difference in ground-air temperature.Cloud–radiation feedback plays a significant role in the evolution of the surface temperature and even SH during the global warming hiatus. Consequently, besides the surface wind speed, the difference in ground-air temperature becomes another significant factor for the variation in SH since the slowdown of global warming, particularly at night.Lihua ZHU Gang HUANG Guangzhou FAN Xia QU Guijie ZHAO Wei HUA 2017Advances in Atmospheric Sciences2017,34,10:8
19Structural Characteristics and Formation Mechanism in the Micangshan Foreland,South China显示文摘躺在 Dabashan, Longmenshan 和 Qinling 山的连接, Micangshan Orogenic 带结合了盆是双结构和背戳有很少水平排水量,小戳差错和连续沉积盖子的三角形的带。根据 3D 地震数据,并且通过沉积、结构的研究, Micangshan 低岬能被划分成五条潜水艇带,它从北方到向南:地下室推进的、正面的戳,低岬 depression-back-thrust 三角,低岬褶层带或背斜带,和 Tongjiang 消沉。沿着到东方的从西方的罢工的方向, Micangshan 的弓形的结构的带能被划分成西方,中间和东方片断。在在 Qinling 和 Yangtze 盘子之间的碰撞期间, Micangshan Orogenic 带受到三个僵硬岩层的相互作用:Bikou, Foping,和 Fenghuangshan (又名 Ziyang ) 岩层。僵硬岩层的碰撞进程控制了 Micangshan 低岬的结构的开发,它是:(a) 在形成结构的更早的基础的 Micangshan-Hannan 和 Bikou 岩层之间的以前的碰撞;并且(b) 形成结构的带的主要身体的以后的碰撞。Micangshan Orogenic 带的形成过程能被划分成四个阶段:(1 ) 在 Indosinian 运动的早阶段, Micangshan-Hannan 僵硬岩层被连接到 Qinling 板由顺时针方向向 Qinling 板的 Yangtze 板的 subduction;(2 ) 自从晚三叠纪, Tongnanba 和 Jiulongshan 背斜的更早的基础和相应向斜被压缩从 Bikou, Foping 和 Micangshan-Hannan 的不同方向形成岩层;(3 ) 在喜玛拉雅的运动的早阶段, Micangshan-Hannan 岩层形成了 Micangshan 越过水坝落下的水岩山病房低岬盆和压缩压力主要沿着两它的胁腹被集中,而 Micangshan-Hannan 岩层挤了进 Qinling Orogenic,与力量系上带子;(4 ) 在喜玛拉雅的运动的迟了的阶段, Qinling 板的主要碰撞做了岩层的旧地下室岩石快速高举,形成 Micangshan Orogenic 带。Micangshan 低岬弓形的结构由于岩层的非同质被形成运动。XU Huaming LIU Shu QU Guosheng LI Yanfeng SUN Gang LIU Kang 2009Acta Geologica Sinica(English Edition)2009,83,1:8
20Study on intelligent control technology for forming steel pipe of pipeline with JCO process显示文摘Based on plastic bending engineering theory and machine vision technology, the intelligent control technology for forming steel pipe with JCO process is presented in this paper. By ‘twice pre-bending method’ in the first forming step, the springback law can be obtained. With the springback law and the target angle, the exact punch displacement which determines the formed angle in each bending step is predicted. In the succedent forming steps, the bending process is carried out with the exact punch displacement by real-time revising the springback law. And the angle error in each forming step is calculated by comparing the actual formed angle with the target angle. By conducting compensation for the last angle error in the next forming step, each precise bending process step is realized. A system of intelligent control technology for forming the steel pipe was developed. A calibration method is proposed to calculate the exterior parameters of the CCD camera, in which the equilateral triangle is em-ployed as the calibrating board and only one image needs to be captured. A mathematical model, which converts the angle in the image into the actual formed angle, is derived. The experimental results showed that the ellipticity of the formed pipes was less than 1.5% and the high-quality pipes can be manufactured without the worker's operating experience by employing the in-telligent control technology.ZHAO Jun LI Jian QU XiaoYang WANG Gang SUN HongLei MA Rui 2011Science China(Technological Sciences)2011,54,10:7
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