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    题名 作者 年代 出处 被引量
1Climate and litter C/N ratio constrain soil organic carbon accumulation显示文摘Soil organic carbon(SOC) plays critical roles in stabilizing atmospheric CO2 concentration, but the mechanistic controls on the amount and distribution of SOC on global scales are not well understood. In turn, this has hampered the ability to model global C budgets and to find measures to mitigate climate change. Here, based on the data from a large field survey campaign with 2600 plots across China’s forest ecosystems and a global collection of published data from forested land, we find that a low litter carbon-to-nitrogen ratio(C/N) and high wetness index(P/PET, precipitation-to-potentialevapotranspiration ratio) are the two factors that promote SOC accumulation, with only minor contributions of litter quantity and soil texture. The field survey data demonstrated that high plant diversity decreased litter C/N and thus indirectly promoted SOC accumulation by increasing the litter quality. We conclude that any changes in plant-community composition, plant-species richness and environmental factors that can reduce the litter C/N ratio, or climatic changes that increase wetness index, may promote SOC accumulation. The study provides a guideline for modeling the carbon cycle of various ecosystem scales and formulates the principle for land-based actions for mitigating the rising atmospheric CO2 concentration.Guoyi Zhou Shan Xu Philippe Ciais Stefano Manzoni Jingyun Fang Guirui Yu Xuli Tang Ping Zhou Wantong Wang Junhua Yan Gengxu Wang Keping Ma Shenggong Li Sheng Du Shijie Han Youxin Ma Deqiang Zhang Juxiu Liu Shizhong Liu Guowei Chu Qianmei Zhang Yuelin Li Wenjuan Huang Hai Ren Xiankai Lu Xiuzhi Chen 2019National Science Review2019,6,4:21
2Experimental research on overlying strata movement and fracture evolution in pillarless stress-relief mining显示文摘Junhua Xue Hanpeng Wang Wei Zhou Bo Ren Changrui Duan Dongsheng Deng 2015International Journal of Coal Science & Technology2015,2,1:21
3Programmed Self-Elimination of the CRISPR/Cas9 Construct Greatly Accelerates the Isolation of Edited and Transgene-Free Rice Plants显示文摘Yubing He Min Zhu Lihao Wang Junhua Wu Qiaoyan Wang Rongchen Wang Yunde Zhao 2018Molecular Plant2018,11,9:18
4Myocardial infarction secondary prevention study (MISPS)显示文摘Background Traditional Chinese medicine (TCM), especially herbal medicine, has been widely used in China and now is also being increasingly used in other countries for the treatment of cardiovascular diseases. Although many studies have demonstrated that certain Chinese herbal products are effective and safe for the treatment of cardiovascular diseases, most of these lack sufficient quality. Therefore, large randomized clinical trials and further scientific research to determine its safety, effectiveness are necessary.QiShen YiQi Dripping Pills (QSYQDP) is a herbal preparation clinically used in the treatment and prevention of coronary artery disease. Preliminary observations have shown its safety and effectiveness. Methods/Design This randomized, controlled trial will recruit 3600 patients with a history of myocardial infarction. Patients will be randomized into two groups by a Centr-Randomized System. One group receives QSYQDP, the other group receive aspirin. This trial protocol will describe eligibility criteria, detailed information on the treatment definition, blinding, endpoints, statistical methods, sample size determination, data management, legal aspects, and the current status of the trial. Discussion This trial is one of the first randomized, controlled clinical trial to evaluate the efficacy and safety of traditional Chinese herbal medicine in the treatment and secondary prevention of coronary artery disease. The results of this study should help to define the role of TCM in modern medical care, as well as to provide the management strategy for CAD patients in China and other countries.Hongcai SHANG Guohua DAI Junhua HANG Yaozu XIANG Yang WANG Junping ZHANG Wuxun DU Jingyuan MAO Chen YAO Weiliang WENG Tiancai WEN Boli ZHANG 2006Journal of Geriatric Cardiology2006,3,2:14
5Phytolith records of the climate change since the past 15000 years in the middle reach of the Yangtze River in China显示文摘基于 ^ 啜 14 ^ C 标明日期和核心沉积调查, phytolith 记录被采用重建在在中间的 Jianghan 平原的 paleovegetation 和古气候长江到达。识别的 Phytoliths 被分配进 21 描述得好的 morphotypes 并且把组划分了成四(Poaceae,蕨纲植物,具球果、阔叶) 。和温暖索引的 phytolith 集合(我 ^ 潜水艇 w ^) 被划分成 18 个生态的地区,它在过去的 15000 年期间在长江的中间的活动范围反映与气候变化有关的完全的植被历史。根据有从石笋, peatland ,诺思大西洋深海的沉积,华中的黄土高原,和阿拉伯语海的 paleoclimatic 指示物的 phytolith 记录的关联沉积,八个气候的阶段被识别包括的上次冰川的最大值( LGM )( 20-14.8 cal kaBP ),持续冰川的消失( LDG )( 14.8-11.9 cal kaBP ),在早 Holocene ( 11.9-8 cal kaBP )的低温度的阶段, Holocene 最佳( 8-4.9 cal kaBP ), Holocene Katathermal ( 4.9-1.1 cal kaBP ),中世纪的温暖时期( M 自从 LDG,象 Bolling-Allerod 温暖的间隔,更旧的 Dryas, Inter-Allerod 冷时期,和更年轻的 Dryas 那样的气候的事件,和八个霍洛辛·邦德事件(B1-8 ) 被识别了。我们的结果证明在研究区域的气候的进化与印度夏天有一个强壮的连接季风( SW 季风),亚洲夏天季风( SE 季风),和在诺思大西洋的 Holocene 事件同时,它可能显示太阳的可变性在一百年、千年的规模影响地球表面气候系统[出版摘要]Yansheng GU Hanlin WANG Xianyu HUANG Hongxia PENG Junhua HUANG 2012Frontiers of Earth Science2012,6,1:14
6Traditional Chinese medicine in COVID-19显示文摘COVID-19 pandemic caused by severe acute respiratory syndrome coronavirus 2(SARSCo V-2)has spread across the globe,posing an enormous threat to public health and safety.Traditional Chinese medicine(TCM),in combination with Western medicine(WM),has made important and lasting contributions in the battle against COVID-19.In this review,updated clinical effects and potential mechanisms of TCM,presented in newly recognized three distinct phases of the disease,are summarized and discussed.By integrating the available clinical and preclinical evidence,the efficacies and underlying mechanisms of TCM on COVID-19,including the highly recommended three Chinese patent medicines and three Chinese medicine formulas,are described in a panorama.We hope that this comprehensive review not only provides a reference for health care professionals and the public to recognize the significant contributions of TCM for COVID-19,but also serves as an evidence-based in-depth summary and analysis to facilitate understanding the true scientific value of TCM.Ming Lyu Guanwei Fan Guangxu Xiao Taiyi Wang Dong Xu Jie Gao Shaoqin Ge Qingling Li Yuling Ma Han Zhang Jigang Wang Yuanlu Cui Junhua Zhang Yan Zhu Boli Zhang 2021Acta Pharmaceutica Sinica B2021,11,11:14
7Characteristics of Settings and Etiologic Agents of Foodborne Disease Outbreaks—China,2020显示文摘Introduction:Foodborne diseases are a growing public health problem and have caused a large burden of disease in China.This study analyzed epidemiological characteristics of foodborne diseases in China in 2020 to provide a scientific basis for prevention and control measures.Methods:Data were collected from 30 of 31 provincial-level administrative divisions(PLADs)in the mainland of China,excluding Xizang(Tibet)Autonomous Region,via the National Foodborne Disease Outbreaks Surveillance System・The number and proportion of outbreaks,illnesses,hospitalizations,deaths by setting,pathogen-food category pairs and etiology were calculated.Results:In 2020,7,073 foodborne disease outbreaks were reported,resulting in 37,454 illnesses and 143 deaths.Among the identified pathogens,microbial pathogens were the most common confirmed etiology,accounting for 41.7%of illnesses.Poisonous mushrooms caused the largest proportion of outbreaks(58.0%)and deaths(57.6%).For venues where foodborne disease outbreaks occur,household had the highest number of outbreaks(4,140)and deaths(128),and catering service locations caused the largest proportion of illnesses(59.9%).Outbreaks occurring between June and September accounted for 62.8%of total outbreaks.Conclusions:Foodborne disease outbreaks mainly occurred in households・Microbial pathogens remained the top cause of outbreak-associated illnesses.Poisonous mushrooms were ranked the top cause of deaths in private homes in China.The supervision and management of food safety and health education should be strengthened to reduce the burden of foodborne diseases・Publicity should be increased to reduce the incidence of mushroom poisonings in families,and supervision and management of food should be strengthened to reduce microbial contamination.Hongqiu Li Weiwei Li Yue Dai Yuyan Jiang Junhua Liang Santao Wang Maoqiang Zhuang Zheng Huang Lizi Xu Bo Xue Jikai Liu Haihong Han Sara M.Pires Ping Fu Yunchang Guo 2021China CDC weekly2021,3,42:14
8Numerical simulation of gas flow process in mining-induced crack network显示文摘The exploitation of coal bed methane or coal gas is one of the most effective solutions of the problem of coal gas hazard.A better understanding of gas flow in mining-induced cracks plays an important role in comprehensive development and utilization of coal gas as well as prevention of coal gas hazard.This paper presents a case study of gas flow in mining-induced crack network regarding the situation of low permeability of coal seam.A two-dimensional physical model is constructed on the basis of geological background of mining face No.1122(1) in coal seam No.11-2,Zhangji Coal Mine,Huainan Mining Group Corporation.The mining-induced stress and cracks in overburden rocks are obtained by simulating an extraction in physical model.An evolution of mining-induced cracks in the process of advancing of coal mining face is characterized and three typical crack networks are taken from digital photos by means of image analysis.Moreover,the numerical software named COMSOL Multiphysics is employed to simulate the process of gas flow in three representative crack networks.Isograms of gas pressure at various times in mining-induced crack networks are plotted,suggesting a shape and dimension of gas accumulation area.Zhou Hongwei Liu Jinfeng Xue Dongjie Yi Haiyang Xue Junhua 2012International Journal of Mining Science and Technology2012,22,6:14
9Endothelial-specific m^6A modulates mouse hematopoietic stem and progenitor cell development via Notch signaling显示文摘Junhua Tv Yifan Zhang Suwei Gao Chunxia Zhang Yusheng Chen Wei Li Yun-Gui Yang Qi Zhou Feng Liu 2018Cell Research2018,28,2:12
10Theoretical analysis on water-inrush mechanism of concealed collapse pillars in floor显示文摘以便从机械看法学习隐藏的倒塌支柱的水流入机制,为倒塌支柱的水流入的一个机械模型在这份报纸基于有弹性的力学的厚板理论被建立了。在水压力和批评的水压力的表示的行动下面由解决这为抗水的岩石阶层的变丑建模因为倒塌支柱水流入被获得了研究结果显示那:抗水的阶层的边界条件和力量在影响倒塌支柱的水流入起重要作用。批评水流入压力被相对厚度和抗水的阶层的绝对厚度决定。Tang Junhua Bai Haibo Yao Banghua WU YU 2011Mining Science and Technology2011,21,1:12
11Chemical poison and regeneration of SCR catalysts for NOx removal from stationary sources显示文摘有 NH 3 的没有 x 的选择催化减小(SCR ) 是一种有效技术不把 x 从静止来源移开,例如开火煤的发电厂和工业锅炉。一些在苍蝇灰的元素撤销催化剂由于活跃地点上的强壮的化学吸着。毒物可以由简单地堵住活跃地点行动或由一个电子相互作用改变反应物和产品的吸附行为。这评论主要集中于在 V 2 O 5-based 催化剂,环境良性的催化剂和低温度催化剂。几普通毒物包括 alkali/alkaline 地球金属, 2 和重金属等等因此被提交,他们催化剂上的毒害的机制被讨论。毒害的催化剂的新生方法和毒物抵抗催化剂的发展也被比较并且分析。最后,在发展毒害抵抗催化剂的未来研究方向和为 SCR 催化剂的灵巧的有效新生方法被建议。Junhua LI Yue PENG Huazhen CHANG Xiang LI John C. CRITTENDEN Jiming HAO 2016Frontiers of Environmental Science & Engineering2016,10,3:12
12In Situ Corrosion Monitoring of Mild Steel in a Simulated Tidal Zone without Marine Fouling Attachment by Electrochemical Impedance Spectroscopy显示文摘The corrosion behaviors of the isolated short and vertical long scale Q235 B steel in a simulated tidal zone were studied by electrochemical impedance spectroscopy(EIS) monitoring and corrosion weight loss calculation in an experimental indoor simulating trough.The results show that the corrosion rate of the isolated short scale Q235 B steel in the tidal zone acquired by the EIS agrees with the corrosion weight loss result.The corrosion rates of the short scale steel are in the order of middle tidal zone > the central zone between the middle tidal zone and low tidal zone > high tidal zone > low tidal zone.The fastest corrosion rate in the middle tidal zone is attributed to the longest wet time in a tidal cycle.According to the comparison of corrosion weight loss between the vertical long scale and isolated short scale specimens,the corrosion rate of vertical long scale specimens of Q235 B steel is lower than that of the isolated short scale specimens in the tidal zone,but the result is contrary in the immersion zone.Xin Mu Jie Wei Junhua Dong Wei Ke 2014Journal of Materials Science & Technology2014,30,10:11
13Hypoglycemic mechanism of polysaccharide from Cyclocarya paliurus leaves in type 2 diabetic rats by gut microbiota and host metabolism alteration显示文摘Diabetes mellitus is a serious threat to human health.Cyclocarya paliurus(Batal.)Iljinskaja(C.paliurus)is one of the traditional herbal medicine and food in China for treating type 2 diabetes,and the C.paliurus polysaccharides(CP)were found to be one of its major functional constituents.This research aimed at investigating the hypoglycemic mechanism for CP.It was found that CP markedly attenuated the symptoms of diabetes,and inhibited the protein expression of Bax,improved the expression of Bcl-2 in pancreas of diabetic rats,normalized hormones secretion and controlled the inflammation which contributed to the regeneration of pancreaticβ-cell and insulin resistance.CP treatment increased the beneficial bacteria genus Ruminococcaceae UCG-005 which was reported to be a key genus for protecting against diabetes,and the fecal short-chain fatty acids levels were elevated.Uric metabolites analysis showed that CP treatment helped to protect with the diabetes by seven significantly improved pathways closely with the nutrition metabolism(amino acids and purine)and energy metabolism(TCA cycle),which could help to build up the intestinal epithelial cell defense for the inflammation associated with the diabetes.Our study highlights the specific mechanism of prebiotics to attenuate diabetes through multi-path of gut microbiota and host metabolism.Qiqiong Li Jielun Hu Qixing Nie Xiao Chang Qingying Fang Junhua Xie Haishan Li Shaoping Nie 2021Science China(Life Sciences)2021,64,1:11
14Effects of Cl- Ions on the Corrosion Behaviour of Low Alloy Steel in Deaerated Bicarbonate Solutions显示文摘The effect of Cl-ions on corrosion evolution of Ni Cu low alloy steel during immersion tests(up to 70days) in deaerated 0.05 mol/L bicarbonate solutions was investigated by in-situ electrochemical measurements combined with X-ray diffraction(XRD), scanning electron microscopy(SEM) and electron probe microanalysis(EPMA) characterisations. The results showed that due to the acceleration of substrate dissolution in the presence of Cl-, corrosion of Ni Cu low alloy steel underwent only two stages, i.e., a quick oxidation process followed by a final metastable passive state, without the initial slow anodic dissolution as observed in the Cl--free bicarbonate solution. The main components of the formed rust layer in the Cl--free bicarbonate solution were α-Fe OOH and Fe)_3O_4 , while apart from α-Fe OOH, (Fe)_6(OH)_(12)(CO)_3 was found evident instead of (Fe)_3O_4 in the Cl--containing solution. Metastable pits were only found in the Cl--containing solution where Cl-accumulated after the immersion test, confirming the attack of Cl-on the substrate after penetrating the formed corrosion product layer.Yunfei Lu Junhua Dong Wei Ke 2016Journal of Materials Science & Technology2016,32,4:11
15Characterstics of seasonal variations of leaf n-alkanesand n-alkenes in modern higher plants in Qingjiang, Hubei Province, China显示文摘On the basis of GC and GC-MS analyses, the seasonal variation of leaf lipids is observed in five plant species in Qingjiang in Hubei Province. The CPI values (carbon preference index) of n-alkanes decrease gradually from May to November, though the carbon number distributions and the predominant carbon number in an individual species keep unchanged. The declined CPI values might be caused by the leaf fading, which is further supported by a comparison of the defoliated leaves with the fresh leaves. This observation infers the CPI values of n-alkanes in Quaternary sediments can be used as a tool to index the humification, and thus the climatic and the environmental conditions. The plants analyzed here show a remarkable difference in n-alkanes abundance, suggesting their differential contribution to the n-alkanes identified in sediments. The abundance and the compound species of the n-alkenes detected in the plant leaves change greatly with the seasons due to the influence of temperature, with the least compounds being identified in August.CUI JingWei HUANG JunHua XIE ShuCheng 2008Chinese Science Bulletin2008,53,17:10
16The fluctuating environment associated with the episodic biotic crisis during the Permo/Triassic transition:Evidence from microbial biomarkers in Changxing,Zhejiang Province显示文摘The environmental conditions and the biotic crisis during the Permo-Triassic (Tr/P) transition received increasing attention in the past decades. Presented herein are the molecular fossil records of cyano-bacteria and green sulfur bacteria,the base of the marine ecosystem,to highlight the episodic nature of both the environment and the biotic crisis during this critical period. At least two episodes of cyano-bacterial expansion are documented by 2-methylhopanes ranging from C28 to C32 in carbon number,indicative of the instable marine ecosystem and the fluctuant aquatic nutrients. Meanwhile,the index of 2-alkyl-1,3,4-trimethylbenzenes (biomarkers of green sulfur bacteria) and the ratio of pristane to phy-tane (Pr/Ph) witness the fluctuation of sedimentary environmental redox conditions. The above mo-lecular evidence suggests the occurrence of highly fluctuating environmental conditions during the Tr/P transition,which is consistent with,and probably the cause of,the multi-phased biotic crisis and the prolonged faunal recovery.HUANG XianYu JIAO Dan LU LiQiang XIE ShuCheng HUANG JunHua WANG YongBiao YIN HongFu WANG HongMei ZHANG KeXin LAI XuLong 2007Science China Earth Sciences2007,50,7:10
17A New Species of the Genus Feirana(Amphibia:Anura:Dicroglossidae) from the Western Qinling Mountains of China显示文摘A new species,Feirana kangxianensis sp.nov.,is described from the western Qinling Mountains in Gansu,China.Both morphological and molecular data support its validity.The new species is characterized by:(1)presence of keratinized nuptial spines on the thenar region of the hands in males of the new species,in contrast to F.taihangnica and F.quadranus;(2)of females,the ratios of UEW,INS,NSD and IPTL to SVL of F.kangxianensis were significantly less than those of F.taihangnica and F.quadranus(P<0.05),while the ratio of IOS to SVL of the new species was significantly larger than that of the latter two species(P<0.05);and(3)of males,the ratios of INS,NSD,IPTW to SVL of the new species were significantly less than those of F.taihangnica and F.quadranus(P<0.05),while the ratio of HL to SVL of the former was significantly larger than that of the latter,and the ratio of HW to SVL of F.kangxianensis was significantly larger than that of F.taihangnica but less than that of F.quadranus,the ratio of OPTL to SVL of F.kangxianensis was significantly less than that of F.taihangnica but larger than that of F.quadranus(P<0.05).The three species of Feirana can be easily identified and significantly differ from each other by the canonical discriminant analyses with high correct classification(>92%).Concurrently,based on partial mitochondrial ND2 gene sequences,the result of the molecular phylogenetic analyses of the Feirana indicates that the F.kangxianensis is sister to F.taihangnica.Xin YANG Bin WANG Junhua HU Jianping JIANG 2011Asian Herpetological Research2011,2,2:10
18Nitrogen Deposition and Its Spatial Pattern in Main Forest Ecosystems along North-South Transect of Eastern China显示文摘A continuous three-year observation(from May 2008 to April 2011)was conducted to characterize the spatial variation of dissolved inorganic nitrogen(DIN)deposition at eight main forest ecosystems along the north-south transect of eastern China(NSTEC).The results show that both throughfall DIN deposition and bulk DIN deposition increase from north to south along the NSTEC.Throughfall DIN deposition varies greatly from 2.7 kg N/(ha·yr)to 33.0 kg N/(ha·yr),with an average of 10.6 kg N/(ha·yr),and bulk DIN deposition ranges from 4.1 kg N/(ha·yr)to 25.4 kg N/(ha·yr),with an average of 9.8 kg N/(ha·yr).NH4+-N is the dominant form of DIN deposition at most sampling sites.Additionally,the spatial variation of DIN deposition is controlled mainly by precipitation.Moreover,in the northern part of the NSTEC,bulk DIN deposition is 17%higher than throughfall DIN deposition,whereas the trend is opposite in the southern part of the NSTEC.The results demonstrate that DIN deposition would likely threaten the forest ecosystems along the NSTEC,compared with the critical loads(CL)of N deposition,and DIN deposition in this region is mostly controlled by agricultural activities rather than industrial activities or transportation.ZHAN Xiaoyun YU Guirui HE Nianpeng FANG Huajun JIA Bingrui ZHOU Mei WANG Chuankuan ZHANG Junhui ZHAO Guangdong WANG Silong LIU Yunfen YAN Junhua 2014Chinese Geographical Science2014,24,2:10
19Dynamic assessment method of air target threat based on improved GIFSS显示文摘As the air combat environment becomes more complicated and changeable, accurate threat assessment of air target has a significant impact on air defense operations. This paper proposes an improved generalized intuitionistic fuzzy soft set (GIFSS) method for dynamic assessment of air target threat. Firstly, the threat assessment index is reasonably determined by analyzing the typical characteristics of air targets. Secondly, after the GIFSS at different time is obtained, the index weight is determined by the intuitionistic fuzzy set entropy and the relative entropy theory. Then, the inverse Poisson distribution method is used to determine the weight of time series, and then the time-weighted GIFSS is obtained. Finally, threat assessment of five air targets is carried out by using the improved GIFSS (I-GIFSS) and comparison methods. The validity and superiority of the proposed method are verified by calculation and comparison.FENG Jinfu ZHANG Qiang HU Junhua LIU An 2019Journal of Systems Engineering and Electronics2019,30,3:9
20Clinical research of traditional Chinese medicine in big data era显示文摘与大数据时代的来临,我们的想,技术和方法论正在被转变。数据集中的科学发现基于大数据,说出第四个范例,成为了科学研究的一个新范例。与保健的领域里的因特网信息技术的开发和应用程序一起,单个健康记录,诊断和处理的临床的数据,和 genomic 数据戏剧性地被积累了,它为临床的研究和评价在医药地里产生大数据。与大数据的支持,缺点和软弱可以基于采样在常规临床的评估的方法论被克服。我们的研究目标从诱发性推理变到相互关系分析。这不仅便于个性化的处理,疾病预言,预防和预后的评估,而且以繁体中文药(TCM ) 为处理,并且为中国专利药的 marketing 以后评估对预防保健和症状模式区别的实践合适。到临床的研究在 TCM 领域在大数据包含了的行为,顶层设计被需要并且应该被执行有序。基本构造和革新研究应该在促进并且训练的数据平台创造,数据分析技术和大数据的专业版的节被加强。Junhua Zhang Boli Zhang 2014Frontiers of Medicine2014,8,3:9
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