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1Time range of Mesozoic tectonic regime inversion in eastern North China Block显示文摘An important tectonic inversion took place in eastern North China Block(NCB) during Mesozoic, which caused a great lithosphere thinning, reconstruction of basin-range series, powerful interaction between mantle and crust, a vast granitic intrusion and volcanism, and large-scale metallogenic explosion. The time range of the Mesozoic tectonic regime inversion in the eastern North China Block is one of the key issues to understand mechanism of tectonic regime inversion. Our updated results for recognizing the time range are mainly obtained from the following aspects: structural analyses along northern and southern margins of the NCB and within the NCB for revealing tectonic inversion from compression to extension and structural striking from ~EW to NNE; geothermic analyses of the eastern sedimental basins for a great change of thermal history and regime; basin analysis for basin inversion from compression to extension and basin migration from ~EW to NNE; petrological and geochemical studies of volcanic rocks and lowermost crust xenoliths for recognizing peak period of mantle upwelling and intense interaction between mantle and crust, and main metallogenic epoch. All the studies of the above give the same time range from~150-140 Ma to ~110-100Ma, peaking at ~120 Ma.ZHAI Mingguo ZHU Rixiang LIU Jianming MENG Qingren HOU Quanlin HU Shengbiao LIU Wei LI Zhong ZHANG Hongfu ZHANG Huafeng 2004Science China Earth Sciences2004,47,2:89
2Boundary-processing-technique in EMD method and Hilbert transform显示文摘By virtue of neural network, a series of signals is extended forward and backward, as a result, two additional maxima and two additional minima are obtained at both ends of the original data set, with which the EMD decomposition can be exactly achieved with cubic spline interpolation. Meanwhile, by using of neural network every IMF component can also be extended forward and backward, which effectively restrains the end effect, thus the veracious Hilbert spectra are achieved. Verifications of the sample signals and the actual surface elevation of sea waves show that the present extension method is relatively accurate.DENG Yongjun, WANG Wei, QIAN Chengchun, WANG Zhong & DAI DejunNetwork Center, Ocean University of Qingdao. Qingdao 266003, China Physical Oceanography Laboratory, Ocean Universily of Qingdao, Qingdao 266003, China 2001Chinese Science Bulletin2001,46,11:91
3Gasdermin D is an executor of pyroptosis and required for interleukin-lp secretion显示文摘Wan-ting He Haoqiang Wan Lichen Hu Pengda Chen Xin Wang Zhe Huang Zhang-Hua Yang Chuan-Qi Zhong Jiahuai Han 2015Cell Research2015,25,12:195
4Intelligent Manufacturing in the Context of Industry 4.0: A Review显示文摘Ray Y. Zhong Xun Xu Eberhard Klotz Stephen T. Newman 2017Engineering2017,3,5:130
5Evolution of the novel coronavirus from the ongoing Wuhan outbreak and modeling of its spike protein for risk of human transmission显示文摘Dear Editor,The occurrence of concentrated pneumonia cases in Wuhan city,Hubei province of China was first reported on December 30,2019 by the Wuhan Municipal Health Commission(WHO,2020).The pneumonia cases were found to be linked to a large seafood and animal market in Wuhan,and measures for sanitation and disinfection were taken swiftly by the local government agency.The Centers for Disease Control and Prevention(CDC)and Chinese health authorities later determined and announced that a novel coronavirus(CoV),denoted as 2019-nCoV,had caused the pneumonia outbreak in Wuhan city(CDC,2020).Scientists from multiple groups had obtained the virus samples from hospitalized patients(Normile,2020).The isolated viruses were morphologically identical when observed under electron microscopy.Xintian Xu Ping Chen Jingfang Wang Jiannan Feng Hui Zhou Xuan Li Wu Zhong Pei Hao 2020Science China(Life Sciences)2020,63,3:737
6Remdesivir and chloroquine effectively inhibit the recently emerged novel coronavirus (2019-nCoV) in vitro显示文摘Dear Editor,In December 2019,a novel pneumonia caused by a previously unknown pathogen emerged in Wuhan,a city of 11 million people in central China.The initial cases were linked to exposures in a seafood market in Wuhan.1 As of January 27,2020,the Chinese authorities reported 2835 confirmed cases in China's Mainland,including 81 deaths.Additionally,19 confirmed cases were identified in Hong Kong,Macao and Taiwan,and 39 imported cases were identified in Thailand,Japan,South Korea,United States,Vietnam,Singapore,Nepal,France,Australia and Canada.The pathogen was soon identified as a novel coronavirus(2019-nCoV),which is closely related to sever acute respiratory syndrome CoV(SARS-CoV).2 Currently,there is no specific treatment against the new virus.Therefore,identifying effective antiviral agents to combat the disease is urgently needed.Manli Wang Ruiyuan Cao Leike Zhang Xinglou Yang Jia Liu Mingyue Xu Zhengli Shi Zhihong Hu Wu Zhong Gengfu Xiao 2020Cell Research2020,30,3:563
7Clinical characteristics of novel coronavirus cases in tertiary hospitals in Hubei Province显示文摘Background:The 2019 novel coronavirus(2019-nCoV)causing an outbreak of pneumonia in Wuhan,Hubei province of China was isolated in January 2020.This study aims to investigate its epidemiologic history,and analyze the clinical characteristics,treatment regimens,and prognosis of patients infected with 2019-nCoV during this outbreak.Methods:Clinical data from 1372019-nCoV-infected patients admitted to the respiratory departments of nine tertiary hospitals in Hubei province from December 30,2019 to January 24,2020 were retrospectively collected,including general status,clinical manifestations,laboratory test results,imaging characteristics,and treatment regimens.Results:None of the 137 patients(61 males,76 females,aged 20-83 years,median age 57 years)had a definite history of exposure to Huanan Seafood Wholesale Market.Major initial symptoms included fever(112/137,81.8%),coughing(66/137,48.2%),and muscle pain or fatigue(44/137,32.1%),with other,less typical initial symptoms observed at low frequency,including heart palpitations,diarrhea,and headache.Nearly 80%of the patients had normal or decreased white blood cell counts,and 72.3%(99/137)had lymphocytopenia.Lung involvement was present in all cases,with most chest computed tomography scans showing lesions in multiple lung lobes,some of which were dense;ground-glass opacity co-existed with consolidation shadows or cord-like shadows.Given the lack of effective drugs,treatment focused on symptomatic and respiratory support.Immunoglobulin G was delivered to some critically ill patients according to their conditions.Systemic corticosteroid treatment did not show significant benefits.Notably,early respiratory support facilitated disease recovery and improved prognosis.The risk of death was primarily associated with age,underlying chronic diseases,and median interval from the appearance of initial symptoms to dyspnea.Conclusions:The majority of patients with 2019-nCoV pneumonia present with fever as the first symptom,and most of them still showed typical manifestations of viral pneumonia on chest imaging.Middle-aged and elderly patients with underlying comorbidities are susceptible to respiratory failure and may have a poorer prognosis.Kui Liu Yuan-Yuan Fang Yan Deng Wei Liu Mei-Fang Wang Jing-Ping Ma Wei Xiao Ying-Nan Wang Min-Hua Zhong Cheng-Hong Li Guang-Cai Li Hui-Guo Liu 2020Chinese Medical Journal2020,,9:100
8MICROSTRUCTURAL MODEL OF GATORIZED WASPALOY IN THE ISOTHERMAL FORGING PROCESS显示文摘A microstructural model, which was to predict the evolution of microstructure of Gatorized Waspeloy in the isothermal forcing process, was developed in terms of dynamic recrystallization and grain growth. Three steps of experiment were conducted during developing the model: (1) .Specimens were compressed in M FS testing machine; (2) Dynamic recrystallization and grain growth were discussed; (3) Dynamic recrys- tallization model and grain growth mode were set up. The agreement of simulated results and experimental data is fine.J.P. Hu (Chongqing Iron and Steel Designing Research Institute, Chongqing 400013, China) J. Y. Zhuang, J.H. Du, Q. Deng, D. Feng and Z. Y. Zhong (Central Iron and Steel Research Institute, Beijing 100081, China) P. Janschek and J. Kramer (Thyssen Umformte 2001Acta Metallurgica Sinica(English Letters)2001,14,3:61
9Growth inhibition and apoptosis induction Sulindac on Human gastric cancer cells显示文摘AIM: To evaluate the effects of sulindac in inducing growth inhibition and apoptosis of human gastric cancer cells in comparison with human hepatocellular carcinoma (HCC)cells.METHODS: The human gastric cancer cell lines MKN45 and MKN28 and human hepatocellular carcinoma cell lines HepG2and SMMC7721 were used for the study. Anti-proliferative effect was measured by MTT assay, and apoptosis was determined by Hoechst-33258 staining, electronography and DNA fragmentation. The protein of cyclooxygenase-2 (COX(2) and Bcl-2 were detected by Westem dot blotting.RESULTS: Sulindac could initiate growth inhibition and apoptosis of MKN45, MKN28, HepG2 and SMMC7721 cells in a dose-and time-dependent manner. Growth inhibitory activity and apoptosis were more sensitive in HepG2 cells than in SMMC7721 cells, MKN45 and MKN28 cells. After 24hours incubation with sulindac at 2mmol. L-1 and 4mmol.L-1, the level of COX-2 and Bcl-2 protein were lowered in MKN45, SMMC7721 and HepG2 cells but not in MKN28 cells.CONCLUSION: Sulindac could inhibit the growth of gastric cancer cells and HCC cells effectively in vitro by apoptosis induction, which was associated with regression of COX-2and Bcl-2 expression. The growth inhibition and apoptosis of HCC cells were greater then that of human gastric cancer cells. The different effects of apoptosis in gastric cancer cells may be related to the differentiation of the cells.Yun-Lin Wu~1 Bo Sun~1 Xue-Jun Zhang~2 Sheng-Nian Wang~2 Heng-Yi He~2 Min-Min Qiao~1 Jie Zhong~1 Jia-Yu Xu~1 1 Department of Gastroenterology,Ruijin Hospital,Shanghai Second Medical University,Shanghai 200025,China2 Institude of Biochemistry and Cell Biology,Shanghai Institues for Biological Sciences,Chinese Academy of Sciences.Shanghai 200025,China 2001World Journal of Gastroenterology2001,7,6:64
10Aggregation operators on intuitionistic trapezoidal fuzzy number and its application to multi-criteria decision making problems显示文摘Intuitionistic trapezoidal fuzzy numbers and their operational laws are defined. Based on these operational laws, some aggregation operators, including intuitionistic trapezoidal fuzzy weighted arithmetic averaging operator and weighted geometric averaging operator are proposed. Expected values, score function, and accuracy function of intuitionitsic trapezoidal fuzzy numbers are defined. Based on these, a kind of intuitionistic trapezoidal fuzzy multi-criteria decision making method is proposed. By using these aggregation operators, criteria values are aggregated and integrated intuitionistic trapezoidal fuzzy numbers of alternatives are attained. By comparing score function and accuracy function values of integrated fuzzy numbers, a ranking of the whole alternative set can be attained. An example is given to show the feasibility and availability of the method.Wang Jianqiang Zhang Zhong 2009Journal of Systems Engineering and Electronics2009,20,2:63
11Dynamic mechanism and present situation of rural settlement evolution in China显示文摘这篇论文提供影响农村解决的进化的因素的详细分析,包括自然环境限制,基础结构,地区性的文化继承和集成,都市化和农村工业转变,陆地使用改革和革新,农村家庭行为变换,宏控制政策因素等等。在农村解决进化上基于效果的方法和度之间的差别,这些因素被分类进基本因素,新型的因素和变化因素。基本因素的开车主要集中于农村解决的传统的继承,新型的因素主要影响因素可以引起的农村解决转变,和变化突然的变化。所有这些因素为农村解决的进化组成三车轮的开车机制,并且塑造三条典型司机路径:慢在变化因素下面在基本因素,到在新型的因素下面的快速的开发的新路径,和突然的变化路径下面弄平路径。纸也在解决系统的方面调查农村解决进化的全面状况,解决规模,解决形态学,解决功能,解决文化,解决环境,等等。农村解决进化的一般过程被划分成四个阶段:起始、过渡、发展、成熟的阶段。ZHOU Guohua HE Yanhua TANG Chengli YU Tao XIAO Guozhen ZHONG Ting 2013Journal of Geographical Sciences2013,23,3:65
12Oxidative stress in Alzheimer's disease显示文摘Oxidative stress plays a significant role in the pathogenesis of Alzheimer's disease(AD), a devastating disease of the elderly. The brain is more vulnerable than other organs to oxidative stress, and most of the components of neurons(lipids, proteins, and nucleic acids) can be oxidized in AD due to mitochondrial dysfunction, increased metal levels, infl ammation, and β-amyloid(Aβ) peptides. Oxidative stress participates in the development of AD by promoting Aβ deposition, tau hyperphosphorylation, and the subsequent loss of synapses and neurons. The relationship between oxidative stress and AD suggests that oxidative stress is an essential part of the pathological process, and antioxidants may be useful for AD treatment.Zhichun Chen Chunjiu Zhong 2014Neuroscience Bulletin2014,30,2:66
13High expression of ACE2 receptor of 2019-nCoV on the epithelial cells of oral mucosa显示文摘It has been reported that ACE2 is the main host cell receptor of 2019-nCoV and plays a crucial role in the entry of virus into the cell to cause the final infection. To investigate the potential route of 2019-n Cov infection on the mucosa of oral cavity, bulk RNA-seq profiles from two public databases including The Cancer Genome Atlas(TCGA) and Functional Annotation of The Mammalian Genome Cap Analysis of Gene Expression(FANTOM5 CAGE) dataset were collected. RNA-seq profiling data of 13 organ types with para-carcinoma normal tissues from TCGA and 14 organ types with normal tissues from FANTOM5 CAGE were analyzed in order to explore and validate the expression of ACE2 on the mucosa of oral cavity. Further, single-cell transcriptomes from an independent data generated in-house were used to identify and confirm the ACE2-expressing cell composition and proportion in oral cavity. The results demonstrated that the ACE2 expressed on the mucosa of oral cavity. Interestingly, this receptor was highly enriched in epithelial cells of tongue. Preliminarily, those findings have explained the basic mechanism that the oral cavity is a potentially high risk for 2019-nCoV infectious susceptibility and provided a piece of evidence for the future prevention strategy in dental clinical practice as well as daily life.Hao Xu Liang Zhong Jiaxin Deng Jiakuan Peng Hongxia Dan Xin Zeng Taiwen Li Qianming Chen 2020International Journal of Oral Science2020,12,1:69
14长春市儿童医院1998~2001年婴幼儿杯状病毒腹泻流行病学研究显示文摘人类杯状病毒(humancalicivirus,HuCV)是引起儿童和成人非菌性胃肠炎的主要病原之一。为了掌握HuCV在我国的流行情况,1998年7月至2001年6月,从长春市儿童医院2343例5岁以下腹泻患儿中共收集粪便标本1264份,其中1056份来自2135例住院患儿。对轮状病毒检测为阴性的588份标本,经多价酶免疫试验(EIA)和两组引物反转录-聚合酶链反应(RT-PCR)检测HuCV,202份为阳性,其中住院患儿标本178份,HuCV检出率为16 9%。HuCV腹泻以2岁以下儿童为主(占96%),流行高峰季节为11月至次年3月。选择17株HuCV进行分子鉴定,15株属GⅡ 4群,1株属GⅡ 3群,另1株属GⅠ 2群,表明GⅡ 4群HuCV是我国流行的优势株。根据HuCV住院患儿的监测资料初步估计,HuCV腹泻住院率约为0 5‰~2 4‰。讨论了长春地区HuCV的流行趋势和疾病负担。以上结果为我国HuCV腹泻的预防和控制提供了科学依据。谢华萍 方肇寅 王光 孙利炜 吕红霞 Zhong WM Tai JH 林思恩 童志礼 章青 Glass RI Jiang X 2002病毒学报2002,18,4:75
15Preventive treatments for recurrence after curative resection of hepatocellular carcinoma-A literature review of randomized control trials显示文摘To review the inhibitory effect of preventive approaches on recurrence after operation in patients with hepatocellular carcinoma (HCC), we summarized all available publications. reporting randomized control trial indexed in PubMed. The treatment approaches presented above included preoperative transcatheter arterial chemoembolization (TACE),post-operative TACE, systemic or locoregional chemotherapy,immunotherapy, Interferons and acyclic retinoic acid Although no standard treatment has been established,several approaches presented promising results, which were both effective and tolerable in post-operative patients. Preoperative TACE was not effective on prolonging survivals,while post-operative TACE was shown with both diseasefree survival and overall survival benefits in some papers,however, it was also questioned by others. Systemic chemotherapy was generally not effective on prolonging survival but also poorly tolerated for its significant toxicities.Adoptive immunotherapy using LAK cells was proved to be beneficial to patients' survival in a recent paper. Interferon and Interferon β can inhibit recurrence in HCC patients with HCV infection background, though the mechanism is not fully understood. Acyclic retinoic acid was shown to decrease multi-centric recurrence after operation, which was reported by only one group. In conclusion, several adjuvant approaches have been studied for their efficacy on recurrence in HCC patients in randomized control trials; however, multi-centric randomized control trial is still needed for further evaluation on their efficacy and systemic or local toxicities;in addition, new adjuvant treatment should be investigated to provide more effective and tolerable methods for the patients with HCC after operation.Hui-Chuan Sun Zhao-You Tang Liver Cancer Institute and Zhong Shan Hospital,Fudan University,Shanghai 200032,China 2003World Journal of Gastroenterology2003,9,4:63
16Theoretical research on construction quality real-time monitoring and system integration of core rockfill dam显示文摘With the enlargement of core rockfill dam construction scale and the improvement of construction mechanization level, the traditional manual construction quality control method is now difficult to meet the quality and safety demands of modern dam construction, so automatic and real-time dam construction quality monitoring with high-techs is urgently needed. The paper makes theoretical research on construction quality real-time monitoring and system integration of core rockfill dam, proposes implementation method and integrated solution of construction quality real-time monitoring of core rockfill dam construction process, realizes refining, all-whether, entire-process and real-time control and analysis on key links of dam construction, and introduces the application of the construction quality real-time monitoring and system integration technology to a practical core rockfill dam project.ZHONG DengHua CUI Bo LIU DongHai TONG DaWei 2009Science China(Technological Sciences)2009,52,11:59
17Mathematic principles of interrupted-sampling repeater jamming (ISRJ)显示文摘Coherent jamming is one of the important trends in modern radar electronic war- fare. High-speed sampling of wideband radio frequency (RF) signals and high iso- lation of two receive-transmit antennas are key technologies for the realization of coherent jamming. However, these technologies present significant challenges to engineering application. In this paper, a novel repeater jamming based on inter- rupted sampling technique is presented. For a jammer with a receive-transmit time-sharing antenna, a radar signal is sampled with a low rate by the jammer. Then, a train of false targets will be achieved after the jamming signal feed the matched filter of a pulse compression radar. For the case of the linear frequency modulated (LFM) pulse compression radars, mathematic principles of the interrupted-sam- pling repeater jamming is developed, and then the efficiency of the jamming is de- scribed and stated as expressions of key parameters which are also beneficial to the jamming design for other coherent radars.WANG XueSong LIU JianCheng ZHANG WenMing FU QiXiang LIU Zhong XIE XiaoXia 2007Science in China(Series F)2007,50,1:53
18Comparative Analysis of Codon Usage Patterns Among Mitochondrion, Chloroplast and Nuclear Genes显示文摘Wen-Juan Zhang Jie Zhou Zuo-Feng Li Li Wang Xun Gu Yang Zhong 2007Journal of Integrative Plant Biology2007,49,2:55
19U–Pb ages and Hf isotopes for detrital zircons from quartzite in the Paleoproterozoic Songshan Group on the southwestern margin of the North China Craton显示文摘In situ U-Pb dating and Lu-Hf isotopic analysis were carried out for detrital zircons from quartzite in the Paleoproterozoic Songshan Group on the southern margin of the North China Craton (NCC). The re- sults provide further constraints on the crustal formation and evolution history of NCC. Four 207Pb/206Pb age populations were obtained from 99 analyses, with clusters at ~3.40 Ga, 2.77―2.80 Ga, ~2.50 Ga and 2.34 Ga, respectively. The 3.40 Ga old zircons have similar Hf isotopic compositions to those from Ar- chean rocks in the Jidong and Anshan areas of NCC. However, crustal remnants older than 3.6 Ga have been identified in the southern margin of NCC, the South China Craton, the northwestern part of the Qinling Orogen and its adjacent area. Thus, it is not easy to trace the source rock from which the 3.40 Ga detrital zircons were derived. It can be inferred that the crustal remnants older than 3.40 Ga might have been widely distributed in the North China Craton. The 2.77―2.80 Ga zircons make up a relatively small proportion and have the highest εHf (t) values (up to 6.1±1.6), consistent with the Hf isotopic composition of the depleted mantle at 2.83 Ga. Their single-stage Hf model age of 2.83 Ga is close to their crystallized age, suggesting that their source rocks were extracted from the contemporaneous depleted mantle. The ~2.50 Ga zircon grains constitute about 85% of the total grain population and their Hf isotopic compositions indicate major growth of juvenile crust at ~2.50 Ga but minor reworking of ancient crust. The youngest zircon dated in this study gave an U-Pb age of 2337±23 Ma, which can be considered the maximum depositional age of the formation of the Songshan Group.DIWU ChunRong SUN Yong YUAN HongLin WANG HongLiang ZHONG XingPing LIU XiaoMing 2008Chinese Science Bulletin2008,53,18:54
20Fast increasing of surface ozone concentrations in Pearl River Delta characterized by a regional air quality monitoring network during 2006–2011显示文摘Based on the observation by a Regional Air Quality Monitoring Network including 16 monitoring stations, temporal and spatial variations of ozone(O3), NO2and total oxidant(Ox) were analyzed by both linear regression and cluster analysis. A fast increase of regional O3concentrations of 0.86 ppbV/yr was found for the annual averaged values from 2006 to 2011 in Guangdong, China. Such fast O3increase is accompanied by a correspondingly fast NOx reduction as indicated by a fast NO2 reduction rate of 0.61 ppbV/yr. Based on a cluster analysis, the monitoring stations were classified into two major categories – rural stations(non-urban) and suburban/urban stations. The O3concentrations at rural stations were relatively conserved while those at suburban/urban stations showed a fast increase rate of 2.0 ppbV/yr accompanied by a NO2 reduction rate of 1.2 ppbV/yr. Moreover, a rapid increase of the averaged O3 concentrations in springtime(13%/yr referred to 2006 level) was observed, which may result from the increase of solar duration, reduction of precipitation in Guangdong and transport from Eastern Central China. Application of smog production algorithm showed that the photochemical O3production is mainly volatile organic compounds(VOC)-controlled. However, the photochemical O3production is sensitive to both NOx and VOC for O3pollution episode. Accordingly, it is expected that a combined NOx and VOC reduction will be helpful for the reduction of the O3 pollution episodes in Pearl River Delta while stringent VOC emission control is in general required for the regional O3 pollution control.Jinfeng Li Keding Lu Wei Lv Jun Li Liuju Zhong Yubo Ou Duohong Chen Xin Huang Yuanhang Zhang 2014Journal of Environmental Sciences2014,26,1:51
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