维普中文期刊产品整合服务
70篇 您的检索式:作者名="Shengqing"
    题名 作者 年代 出处 被引量
1An Overview on Advanced Grid-connected Inverters Used for Decentralized Renewable Energy Resources显示文摘并网逆变器是分散式可再生能源接入配电网的重要接口,随着分布式可再生能源渗透率的不断提高,并网逆变器在传统配电网中的地位越发突出。为了高效完成可再生能源分散式并网,并有效降低并网逆变器对电网的冲击,一些在装置上、结构上和功能上更加先进的并网逆变器成为了迫切的需求。针对现有的一些先进并网逆变器进行比较、分析和研究,从装置级、功能级和控制级的角度对现有先进并网逆变器进行综述。给出一些在结构上能更加灵活地将可再生能源分散接入配电网的硬件电路。研究一些适用于可再生能源分散接入的,使并网逆变器能虚拟同步发电机完成自治运行、电能质量治理、系统阻抗检测、网络阻抗控制等辅助控制功能。同时还对并网逆变器的并网同步算法和电流跟踪控制策略进行了探讨。最后,提出一个适合于可再生能源分散并网的先进并网逆变器框架。ZENG Zheng ZHAO Rongxiang TANG Shengqing YANG Huan LU Zhipeng 2013中国电机工程学报2013,33,24:76
2Olive leaf extract inhibits lead poisoning-induced brain injury显示文摘Olive leaves have an antioxidant capacity,and olive leaf extract can protect the blood,spleen and hippocampus in lead-poisoned mice.However,little is known about the effects of olive leaf extract on lead-induced brain injury.This study was designed to determine whether olive leaf extract can inhibit lead-induced brain injury,and whether this effect is associated with antioxidant capacity.First,we established a mouse model of lead poisoning by continuous intragastric administration of lead acetate for 30 days.Two hours after successful model establishment,lead-poisoned mice were given olive leaf extract at doses of 250,500 or 1000 mg/kg daily by intragastric administration for 50 days.Under the transmission electron microscope,olive leaf extract attenuated neuronal and capillary injury and reduced damage to organelles and the matrix around the capillaries in the frontal lobe of the cerebral cortex in the lead-poisoned mice.Olive leaf extract at a dose of 1000 mg/kg had the greatest protective effect.Spectrophotometry showed that olive leaf extract significantly increased the activities of superoxide dismutase,catalase,alkaline phosphatase and acid phosphatase,while it reduced malondialdehyde content,in a dose-dependent manner.Furthermore,immunohistochemical staining revealed that olive leaf extract dose-dependently decreased Bax protein expression in the cerebral cortex of lead-poisoned mice.Our findings indicate that olive leaf extract can inhibit lead-induced brain injury by increasing antioxidant capacity and reducing apoptosis.Yu Wang Shengqing Wang Wenhui Cui Jiujun He Zhenfu Wang Xiaolu Yang 2013Neural Regeneration Research2013,8,22:21
3Effects of lead exposure on histological structure and antioxidant capacity in the cerebellum of 30-day-old mice显示文摘The current study sought to observe the effects of lead on histological structure and antioxidant capacity in 30-day-old mice.Spectrophotometry was used to detect the activities of superoxide dismutase,catalase,alkaline phosphatase,acid phosphatase and the malondialdehyde content.The results revealed that Purkinje cells in the lead-exposed group exhibited obvious pyknosis,atrophy and a decrease in overall number.Granular cells exhibited a disorderly arrangement,and were reduced in number.Administration of lead decreased the activities of superoxide dismutase,catalase,alkaline phosphatase and acid phosphatase,while malondialdehyde content increased.Two-way analysis of variance indicated that dose contributed more to lead-induced cerebellum damage than treatment time.The present study demonstrated that lead exerted strong effects on histological structure and inhibited antioxidant capacity of the cerebellum in 30-day-old mice.Yu Wang Shengqing Wang 2011Neural Regeneration Research2011,6,14:18
4Effect and Prospect of Basic Geological Survey Based on Airborne Gravimetry in China显示文摘The airborne gravimetry was an important leap and innovation in the world's history of geophysical exploration.China's first test of the airborne gravity geological survey in the onshore-offshore transitional area of the western and southern part of the Bohai Sea was successful and effective in geology.Based on the airborne gravity data,and combining previous ground gravity,seismic and drilling data etc.,we carried out the geological interpretation by forward and inverse methods.The result shows that the airborne Bouguer gravity anomaly was clear,the fracture interpretation was reliable,and the inversion depth of the main geological interfaces was relatively accurate.This airborne gravity geological survey not only filled the exploring gaps in the onshore-offshore transitional area,and realized the geological and tectonic junction between the sea and the land,but also discovered four local gravity anomalies,11 fractures and three sags or subsags,and so on.The good geological effect of airborne gravimetry not restricted by terrain condition shows that it can be served as a new geophysical method in the exploration of complex terrain physiognomy area such as mountain,jungle,desert,marsh,onshore-offshore transitional area and so on,and has an extensive application prospect in China in the future.LI Wenyong ZHOU Jianxin XIONG Shengqing GUO Zhihong LU Wenfen XU Jianchun LIU Yanxu 2012Acta Geologica Sinica(English Edition)2012,86,1:11
5Study of Residual Basin and Tectonolayering Based on Airborne Gravity and Magnetic Data显示文摘This paper takes the South Yellow Sea as an example to show a new method for comprehensive geological-geophysical research such as residual basin and tectonolayering using airborne gravity and magnetic data in China. Based on airborne gravity and magnetic data, by measuring and analyzing stratigraphic density and susceptibility, the depths to the pre-Sinian magnetic basement top, the pre-Jurassic top and the Cenozoic bottom, are obtained by forward and inverse methods constrained by seismic and drilling data; and furthermore, the residual thicknesses of the Sinian-Triassic, the Jurassic-Cretaceous and the Cenozoic are calculated. Based on airborne gravity and magnetic anomalies, the faults in the pre-Sinian magnetic basement, the Jurassic-Cretaceous and the Cenozoic are respectively interpreted by the qualitative and quantitative methods. On the basis of the above study, and combining regional important tectonic events, four tectonolayers are divided in the vertical succession in South Yellow Sea, namely the pre-Sinian magnetic basement, the Sinian-Triassic, the Jurassic-Cretaceous and the Cenozoic. The result shows that there are thick Cenozoic and Jurassic-Cretaceous strata and thin residual Sinian-Triassic strata in the Suzhong-Huangnan depression area, but there are thin or only sporadic Mesozoic-Cenozoic terrestrial strata and thick Sinian-Triassic marine strata reserved in Subei-Huangzhong uplift area and Sunan-Wunansha uplift area. The four tectonolayers are very different in structures as well as distributions in plane.LI Wenyong ZHOU Jianxin XIONG Shengqing LIU Yanxu XU Jianchun 2013Acta Geologica Sinica(English Edition)2013,87,4:6
6Marek's disease virus VP22 enhances potentially the immune response of E SAT-6/CFP-10 against Mycobacterium bovis infection显示文摘对 Mycobacterium bovis 的当前可得到的疫苗,肺结核的原因的代理人,别提供可靠功效,因此对有改进功效的一支新奇疫苗有需要。这里,我们使用蛋白质 transduction 技术交付直接表示 mycobacterial 抗原指向房间的 DNA 疫苗。我们使用了包括 VP22 的领域(PTD ) 蛋白质从 Marek 的疾病病毒 serotype 结合的各种各样的蛋白质 transduction 1 (MDV-1 ) ,作为为编码抗原的 DNA 构造的交货系统,早能分泌的 antigenic target-6 kDa (ESAT-6 ) 蛋白质和文化过滤蛋白质 10 (CFP-10 ) M。bovis。真核细胞的表示 plasmid pZ106,编码抗原 ESAT-6 和 CFP-10,结合了到各种各样的 PTD,被用来构造试验性的准备。我们的调查结果与 CFP-10 独自或在联合表明了那 VP22 : ESAT-6 熔化蛋白质能传播进包围 transfected 房间的房间单层的所有原子核。而激活 trans transcriptional PTD 出现了,熔化蛋白质和 8R 肽的有限交货是不能的交付熔化蛋白质进任何 untransfected 房间。我们证明了有熔化到 VP22 的准备的那免疫导致更高的抗体和干扰素 -- titer (P < 0.05 ) 。一起拿,我们的结果证明 MDV-1 VP22 用 DNA 疫苗在基因治疗和免疫用作潜在的有免疫力的 enhancer,为 M 的预防提供一条新奇途径。bovis 感染。Hongjun Chen Wei Wang Cuiping Song Shengqing Yu Chan Ding 2010Acta Biochimica et Biophysica Sinica2010,42,5:4
7High Frequency Communication Network with Diversity: System Structure and Key Enabling Techniques显示文摘High frequency sky wave communication suffers from poor performance including poor link quality and low link success rate. To enhance performance, diversity technology is proposed in the high frequency communication network(HFCN) in this paper.First, we present the benefits and the challenges by introducing diversity technology into the existing HFCN. Secondly, to exploit the benefits fully and overcome the challenges, we propose a system structure suitable for deploying diversity technology in HFCN in large scale,based on the cloud radio access network and software defined network. Moreover, we present a general structure for the real-time updating frequency management system that plays a more important role especially when resource consuming(e.g., frequency) diversity technology is deployed. Thirdly, we investigate the key techniques enabling diversity technology deployment. Finally, we point out the future research directions to help the HFCN with diversity work more efficiently and intelligently.Kun Xu Bin Jiang Zeyou Su Shengqing Wang Makun Guo Xiao Li Zhiyong Du 2018China Communications2018,15,9:3
8A FAST BIT-LOADING ALGORITHM FOR HIGH SPEED POWER LINE COMMUNICATIONS显示文摘Adaptive bit-loading is a key technology in high speed power line communications with the Orthogonal Frequency Division Multiplexing (OFDM) modulation technology. According to the real situation of the transmitting power spectrum limited in high speed power line communications, this paper explored the adaptive bit loading algorithm to maximize transmission bit number when transmitting power spectral density and bit error rate are not exceed upper limit. With the characteristics of the power line channel, first of all, it obtains the optimal bit loading algorithm, and then provides the improved algorithm to reduce the computational complexity. Based on the analysis and simulation, it offers a non-iterative bit allocation algorithm, and finally the simulation shows that this new algorithm can greatly reduce the computational complexity, and the actual bit allocation results close to optimal.Zhang Shengqing Zhao Li Zou Cairong 2012Journal of Electronics(China)2012,29,5:2
9Low-density extraction solvent-based solvent terminated dispersive liquid–liquid microextraction combined with gas chromatography-tandem mass spectrometry for the determination of carbamate pesticides in water samples显示文摘Hao Chen Ruiwen Chen Shengqing Li 2009Journal of Chromatography A2009,,8:1
10Low-velocity impact response of fibre–metal laminates – Experimental and finite element analysis显示文摘Shengqing Zhu Gin Boay Chai 2012Composites Science and Technology2012,,15:1
11Generation of velogenic Newcastle disease viruses from a nonpathogenic waterfowl isolate by pas- saging in chickens显示文摘Shengqing Y Kishida N 2002Virology2002,301,2:1
12Low-velocity impact response of fibre–metal laminates – Experimental and finite element analysis显示文摘Shengqing Zhu Gin Boay Chai 2012Composites Science and Technology2012,,15:1
13Generation of velogenic Newcastle disease viruses from a nonpathogenic waterfowl isolate by passaging in chickens显示文摘Shengqing Y Kishida N Ito H 2002Virology2002,301,2:1
14Characterization of the immunogenicity and pathogenicity of malate dehydrogenase in Brucella abortus显示文摘Xiangan Han Yongliang Tong Mingxing Tian Xiaoqing Sun Shaohui Wang Chan Ding Shengqing Yu 2014World Journal of Microbiology and Biotechnology2014,,7:1
15Two 2D, 3D admium- pyridinedicarboxylate polymers: structures and photoluminescent properties 显示文摘SHENGQING XIA SHENGMIN HU JINGCAO DAI 2004Inorganic Chemistry Communications2004,7,:1
16Immunoproteomics analysis of whole cell bacterial proteins of Riemerella anatipestifer显示文摘Qinghai Hu Chan Ding Jing Tu Xiaolan Wang Xiangan Han Yunbing Duan Shengqing Yu 2012Veterinary Microbiology (-)2012,,3:1
17Generation of velogenic Newcastle disease viruses from a nonpathogenic waterfowl isolate by passaging in chickens显示文摘Shengqing Y Kishida N Ito H 2002Virology2002,301,2:1
18Synthesis and magnetic properties of shuriken-like nickel nanoparticles显示文摘Shuriken-like nickel nanoparticles were successfully synthesized by a thermal decomposition method at200?C with Nickel(II) acetylacetonate(Ni(acac)2) as the precursor and oleylamine(OAm) as the solvent and reductant,respectively.The phase structures,morphologies and sizes,and magnetic properties of the as-synthesized nickel products were characterized in detail by using X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS),field emission-scanning electron microscopy(FE-SEM),transmission electron microscopy(TEM),high-resolution transmission electron microscopy(HRTEM) and vibrating sample magnetometer(VSM).Some key reaction parameters,such as the reaction time,reaction temperature and surfactants,have important influence on the morphology of the final products.XRD pattern indicated that the products are well-crystallized face-centered cubic(fcc) nickel phase.SEM images demonstrated that the nickel nanoparticles are shuriken-like morphology with average size around150 nm.The mechanism of shuriken-like Ni nanoparticles(NPs) is proposed.The magnetic hysteresis loops of shuriken-like and spherical nickel products illustrated the ferromagnetic nature at 300 K,indicating its potential applications in magnetic storage.Shengqing Liu Jiaming Mei Chen Zhang Jianchao Zhang Rongrong Shi 2018Journal of Materials Science & Technology2018,34,5:1
19The siderophore-interacting protein is involved in iron acquisition and virulence of Riemerella anatipestifer strain CH3显示文摘Jing Tu Fengying Lu Shuang Miao Xintao Ni Pan Jiang Hui Yu Linlin Xing Shengqing Yu Chan Ding Qinghai Hu 2013Veterinary Microbiology2013,,:1
20Generation of velogenic Newcastle disease viruses from a nonpathogenic waterfowl isolate by passaging in chickens显示文摘Shengqing Y Kishida N Ito H 2002Virology2002,301,:1
返回顶部 每页显示:
共4页 首页 上一页 第1页 下一页 末页 /4 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费