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| 1 | Cooperative Guidance for Multimissile Salvo Attack显示文摘多重导弹的合作指导问题在这篇文章被考虑。在协作算法和本地指导法律一起被联合的地方,一个合作指导计划被建议。这个计划实际上建立层次合作指导体系结构,它可以提供一个一般答案给 multimissile 合作社指导问题。在要求导弹同时击中目标的保留攻击的情况中,集中、分布式的协作算法基于 impact-time-control 指导(ITCG ) 被导出法律。数字模拟被执行表明建议途径的有效性。 | Zhao Shiyu Zhou Rui | 2008 | Chinese Journal of Aeronautics2008,21,6: | 76 |
| 2 | Effect of C/N ratio,aeration rate and moisture content on ammonia and greenhouse gas emission during the composting显示文摘Gaseous emission (N2O,CH4 and NH3) from composting can be an important source of anthropogenic greenhouse gas and air pollution.A laboratory scale orthogonal experiment was conducted to estimate the effects of C/N ratio,aeration rate and initial moisture content on gaseous emission during the composting of pig faeces from Chinese Ganqinfen system.The results showed that about 23.9% to 45.6% of total organic carbon (TOC) was lost in the form of CO2 and 0.8% to 7.5% of TOC emitted as CH4.Most of the nitrogen was lost in the form of NH3,which account for 9.6% to 32.4% of initial nitrogen.N2O was also an important way of nitrogen losses and 1.5% to 7.3% of initial total nitrogen was lost as it.Statistic analysis showed that the aeration rate is the most important factor which could affect the NH3 (p=0.0189),CH4 (p=0.0113) and N2O (p=0.0493) emissions significantly.Higher aeration rates reduce the CH4 emission but increase the NH3 and N2O losses.C/N ratio could affect the NH3 (p=0.0442) and CH4 (p=0.0246) emissions significantly,but not the N2O.Lower C/N ratio caused higher NH3 and CH4 emissions.The initial moisture content can not influence the gaseous emission significantly.Most treatments were matured after 37 days,except a trial with high moisture content and a low C/N ratio. | Tao Jiang Frank Schuchardt Guoxue Li Rui Guo Yuanqiu Zhao | 2011 | Journal of Environmental Sciences2011,23,10: | 67 |
| 3 | The Beishan underground research laboratory for geological disposal of high-level radioactive waste in China:Planning, site selection,site characterization and in situ tests显示文摘With the rapid development of nuclear power in China, the disposal of high-level radioactive waste(HLW) has become an important issue for nuclear safety and environmental protection. Deep geological disposal is internationally accepted as a feasible and safe way to dispose of HLW, and underground research laboratories(URLs) play an important and multi-faceted role in the development of HLW repositories. This paper introduces the overall planning and the latest progress for China's URL. On the basis of the proposed strategy to build an area-specific URL in combination with a comprehensive evaluation of the site selection results obtained during the last 33 years, the Xinchang site in the Beishan area,located in Gansu Province of northwestern China, has been selected as the final site for China's first URL built in granite. In the process of characterizing the Xinchang URL site, a series of investigations,including borehole drilling,geological mapping, geophysical surveying,hydraulic testing and in situ stress measurements, has been conducted. The investigation results indicate that the geological,hydrogeological, engineering geological and geochemical conditions of the Xinchang site are very suitable for URL construction. Meanwhile, to validate and develop construction technologies for the Beishan URL, the Beishan exploration tunnel(BET), which is a 50-m-deep facility in the Jiujing sub-area, has been constructed and several in situ tests, such as drill-and-blast tests, characterization of the excavation damaged zone(EDZ), and long-term deformation monitoring of surrounding rocks, have been performed in the BET. The methodologies and technologies established in the BET will serve for URL construction.According to the achievements of the characterization of the URL site, a preliminary design of the URL with a maximum depth of 560 m is proposed and necessary in situ tests in the URL are planned. | Ju Wang Liang Chen Rui Su Xingguang Zhao | 2018 | Journal of Rock Mechanics and Geotechnical Engineering2018,10,3: | 62 |
| 4 | Reentry trajectory optimization for hypersonic vehicle satisfying complex constraints显示文摘The reentry trajectory optimization for hypersonic vehicle(HV)is a current problem of great interest.Some complex constraints,such as waypoints for reconnaissance and no-fly zones for threat avoidance,are inevitably involved in a global strike mission.Of the many direct methods,Gauss pseudospectral method(GPM)has been demonstrated as an effective tool to solve the trajectory optimization problem with typical constraints.However,a series of diffculties arises for complex constraints,such as the uncertainty of passage time for waypoints and the inaccuracy of approximate trajectory near no-fly zones.The research herein proposes a multi-phase technique based on the GPM to generate an optimal reentry trajectory for HV satisfying waypoint and nofly zone constraints.Three kinds of specifc breaks are introduced to divide the full trajectory into multiple phases.The continuity conditions are presented to ensure a smooth connection between each pair of phases.Numerical examples for reentry trajectory optimization in free-space flight and with complex constraints are used to demonstrate the proposed technique.Simulation results show the feasible application of multi-phase technique in reentry trajectory optimization with waypoint and no-fly zone constraints. | Jiang Zhao Rui Zhou | 2013 | Chinese Journal of Aeronautics2013,26,6: | 56 |
| 5 | Pathogenic T-cells and inflammatory monocytes incite inflammatory storms in severe COVID-19 patients显示文摘Pathogenic human coronavirus infections,such as severe acute respiratory syndrome CoV(SARS-CoV)and Middle East respiratory syndrome CoV(MERS-CoV),cause high morbidity and mortality[1,2].Recently,a severe pneumonia-associated respiratory syndrome caused by a new coronavirus(SARS-CoV-2)was reported in December 2019 in the city of Wuhan,Hubei province,China[3-5],which was also named as pneumonia-associated respiratory syndrome(PARS)[6]and can cause coronavirus disease 2019(COVID-19)to seriously endanger human health. | Yonggang Zhou Binqing Fu Xiaohu Zheng Dongsheng Wang Changcheng Zhao Yingjie Qi Rui Sun Zhigang Tian Xiaoling Xu Haiming Wei | 2020 | National Science Review2020,7,6: | 54 |
| 6 | Thermal regimes and degradation modes of permafrost along the Qinghai-Tibet Highway显示文摘Permafrost on the Qinghai-Tibet Plateau (QTP) is widespread, thin, and thermally unstable. Under a warming climate during the past few decades, it has been degrading extensively with generally rising ground temperatures, the deepening of the maximum summer thaw, and with lessening of the winter frost penetration. The permafrost has degraded downward, upward and laterally. Permafrost has thinned or, in some areas, has totally disappeared. The modes of permafrost degradation have great significance in geocryology, in cold regions engineering and in cold regions environmental management. Permafrost in the interior of the QTP is well represented along the Qing-hai-Tibet Highway (QTH), which crosses the Plateau through north to south and traverses 560 km of permafrost-impacted ground. Horizontally, the degradation of permafrost occurs more visibly in the sporadic permafrost zone in the vicinity of the lower limit of permafrost (LLP), along the margins of taliks, and around permafrost islands. Downward degradation develops when the maximum depth of seasonal thaw exceeds the maximum depth of seasonal frost, and it generally results in the formation of a layered talik disconnecting the permafrost from the seasonal frost layer. The downward degrada- tion is divided into four stages: 1) initial degradation, 2) accelerated degradation, 3) layered talik and 4) finally the conversion of permafrost to seasonally frozen ground (SFG). The upward degradation occurs when the geothermal gradient in permafrost drops to less than the geothermal gradients in the underlying thawed soil layers. Three types of permafrost temperature curves (stable, degrading, and phase-changing transitory permafrost) illustrate these modes. Although strong differentiations in local conditions and permafrost types exist, the various combinations of the three degradation modes will ultimately transform permafrost into SFG. Along the QTH, the downward degradation has been proceeding at annual rates of 6 to 25 cm, upward degradation at 12 to 30 cm, and lateral degradation in the sporadic permafrost zone at 62 to 94 cm during the last quarter century. These rates exceed the 4 cm per year for the past 20 years reported for the discontinuous permafrost zone in subarctic Alaska, the 3 to 7 cm per year reported in Mongolia, and that of the thaw-stable permafrost in subarctic Yakutia and Arctic Alaska. | JIN Huijun ZHAO Lin WANG Shaoling JIN Rui | 2006 | Science China Earth Sciences2006,49,11: | 50 |
| 7 | Design of Time-constrained Guidance Laws via Virtual Leader Approach显示文摘Guidance problems with flight time constraints are considered in this article.A new virtual leader scheme is used for design of guidance laws with time constraints.The core idea of this scheme is to adopt a virtual leader for real missiles to convert a guidance problem with time constraints to a nonlinear tracking problem,thereby making it possible to settle the problem with a variety of control methods.A novel time-constrained guidance(TCG) law,which can control the flight time of missiles to a prescribed time,is designed by using the virtual leader scheme and stability method.The TCG law is a combination of the well-known proportional navigation guidance(PNG) law and the feedback of flight time error.What's more,this law is free of singularities and hence yields better performances in comparison with optimal guidance laws with time constraints.Nonlinear simulations demonstrate the effectiveness of the proposed law. | Zhao Shiyu Zhou Rui Wei Chen Ding Quanxin | 2010 | Chinese Journal of Aeronautics2010,23,1: | 36 |
| 8 | Associations of CYP3A4, NR1I2, CYP2C19 and P2RY12 polymorphisms with clopidogrel resistance in Chinese patients with ischemic stroke显示文摘瞄准:在亚洲人口有 antiplatelet 药 clopidogrel 抵抗(CR ) 的高发生。因为 clopidogrel 是 prodrug,编码涉及它的 biotransformation 的酶的基因的多型性可以是主要有影响的因素。这研究的目标是与 ischemic stroke.Methods 在中国病人与 CR 调查 CYP3A4, NR1I2, CYP2C19 和 P2RY12 基因的多型性的协会:有 ischemic 击的 191 个病人的一个总数被注册。病人与 clopidogrel 被对待至少 5 天。血小板功能被轻传播 aggregometry 测量。SNP NR1I2 (rs13059232 ) , CYP3A4 *1G (rs2242480 ) , CYP2C19 *2 (rs4244285 ) 和 P2RY12 (rs2046934 ) 是 genotyped.Results:在这张人口的 CR 率是 36% 。CYP2C19 *2 变体是为 CR 的一个风险因素(*2/*2+wt/*2 对 wt/wt,或:2.366, 95% CI:1.180-4.741, P=0.014 ) ,而 CYP3A4 *1G 变体在 CR 上有保护的效果(*1/*1 对 *1G/*1G+*1/*1G, 或:2.360, 95% CI:1.247-4.468, P=0.008 ) 。NR1I2 (rs13059232 ) 多型性中等与 CR 被联系(CC 对 TT+TC,或:0.533, 95% CI:0.286-0.991, P=0.046 ) 。在 P2RY12 (rs2046934 ) 的 C 等位基因被预言是为 CR 的一个保护的因素(CC+TC 对 TT,或:0.407, 95% CI:0.191-0.867, P=0.018 ) 。另外,一个协会在高血压和 CR (P=0.022 ) 之间被发现 .Conclusion:有 CYP2C19 *2 等位基因和高血压的个人在反血栓治疗期间在 CR 的高风险。CYP3A4 *1G 等位基因, P2RY12 (rs2046934 ) C 等位基因和 NR1I2 (rs13059232 ) CC 遗传型可以是为 CR 的保护的因素。学习的联系 SNP 可能是有用的与 ischemic 击在中国病人预言 clopidogrel 抵抗。 | Rui LIU Zi-yi ZHOU Yi-bei CHEN Jia-li LI Wei-bang YU Xin-meng CHEN Min ZHAO Yuan-qi ZHAO Ye-feng CAI Jing JIN Min HUANG | 2016 | Acta Pharmacologica Sinica2016,37,7: | 39 |
| 9 | Hepatitis B virus genotypes and genome characteristics in China显示文摘AIM:To analyze the hepatitis B virus(HBV) characters in China,as well as the correlation between several HBV mutation and hepatitis symptoms.METHODS:A total of 1148 HBV genome sequences from patients throughout China were collected via the National Center For Biotechnology Information database(information including:genotype,territory and clinical status).HBV genotypes were classified by a direct reference from the Genbank sequence annotation,phylogenetic tree and online software analysis(http://gffzz16a62c593b5540ceh9kck5x9fn0oq69vn.ffgz.tsg.suse.edu.cn/projects/genotyping/formpage.cgi).The phylogenetic tree was constructed based on the neighbor-joining method by MEGA5.0 software.HBV sequences were grouped based on phylogenetic tree and the distance between the groups was calculated by using the computer between group mean distance methods.Seven hundred and twelve HBV sequences with clear annotation of clinical symptoms were selected to analyses the correlation of mutation and clinical symptoms.Characteristics of sequences were analyzed by using DNAStar and BioEdit software packages.The codon usage bias and RNA secondary structures analysis were performed by RNAdraw software.Recombination analysis was performed by using Simplot software.RESULTS:In China,HBV genotype C was the predominant in Northeastern,genotype B was predominant in Central Southern areas,genotype B and C were both dominant in Southwestern areas,and the recombinant genotype C/D was predominant in Northwestern areas.C2 and B2 were identified as the two major sub-genotypes,FJ386674 might be a putative sub-genotype as B10.The basal core promoter double mutation and pre-C mutation showed various significant differences between hepatitis symptoms.In addition to ATG,many other HBV initiation codons also exist.HBV has codon usage bias;the termination codon of X,C and P open reading frames(ORF) were TAA,TAG,and TGA,respectively.The major stop codons of S-ORF were TAA(96.45%) and TGA(83.60%) in B2 and C2 subtype,respectively.CONCLUSION:This study recapitulated the epidemiology of HBV in China,and the information might be meaningful critical for the future prevention and therapy of HBV infections. | Hong-Mei Li Jian-Qiong Wang Rui Wang Qian Zhao Li Li Jin-Ping Zhang Tao Shen | 2015 | World Journal of Gastroenterology2015,21,21: | 33 |
| 10 | Association of serum uric acid with different levels of glucose and related factors显示文摘以前的研究表明了的背景那浆液尿酸(UA ) 在一般人口是事件类型 2 糖尿病 mellitus (T2DM ) 的一个独立预言者。试图在 946 的一个总数使遭到的中国 population.Methods 调查在 UA 和血葡萄糖和另外的风险因素之间的 UA 和它的关系的特定的特征的这研究在这研究被包括。 UA ,葡萄糖,胰岛素, UA ( FEua )的部分排泄, creatinine 清理率( Ccr ),血红素 A1c ( HbA1c ), fructosamine ( FA ),在病人二星期联合 therapeutics.Results UA 经历了层次以后,血压和类脂化合物被学习并且也再考在有损害葡萄糖规定( IGR )的题目是最高的,与 T2DM 由题目与 normoglycemia ( NGT )并且最后由题目列在后面。在为胰岛素(AUCins ) 的曲线下面的 2 小时的饭后的胰岛素和区域的水平显示出一个类似的趋势。UA 层次开始与增加 fasting 血葡萄糖(FBG ) 和饭后的血葡萄糖(PPBG ) 层次增加了,直到 7 mmol/L,分别地, 10 mmol/L 在更高的 FBG 和 PPBG 层次减少了。与在更低的浆液 UA 的题目相比方照,题目在上面更高有的浆液 UA 层次方照象更低的 Ccr 和 FEua 层次一样的重量, triglyceride 层次,和 creatinine 层次。与女人的组相比, UA 层次更高,并且 FEua 层次在男人的组是更低的。性,身体团索引(BMI ) ,吝啬的动脉的血压(地图) ,浆液 triglycerides (TG ) , FA 和 Ccr 是 UA 的独立关联因素。在病人经历了开始增加然后当葡萄糖层次与 NGT 和 T2DM 从 NGT 增加了到 IGR 和 T2DM.Compared,减少了的联合 treatment.Conclusions UA 以后, UA 减少了, FEua 增加了, IGR 题目有更高的 SUA 层次,它与它胰岛素的高水平有关。在 T2DM,男性, BMI,地图, Ccr, TG 和 FA 下面是 UA 的独立关联因素。葡萄糖阴沉, antihypertensive,联合治疗具有优点 T2DM 的 SUA 衰退的调整 lipemia。 | YUAN Hui-juan YANG Xu-guang SHI Xiao-yang TIAN Rui ZHAO Zhi-gang | 2011 | Chinese Medical Journal2011,,10: | 29 |
| 11 | Springback equation of small curvature plane bending显示文摘A new analytical method for springback of small curvature plane bending is addressed with unloading rule of classical elastic-plastic theory and principle of strain superposition.We start from strain analysis of plane bending which has initial curvature,and the theoretic derivation is on the widely applicable basic hypotheses.The results are unified to geometry constraint equations and springback equation of plane bending,which can be evolved to straight beam plane bending and pure bending.The expanding and setting round process is one of the situations of plane bending,which is a bend-stretching process of plane curved beam.In the present study,springback equation of plane bending is used to analyze the expanding and setting round process,and the results agree with the experimental data.With a reasonable prediction accuracy,this new analytical method for springback of plane bending can meet the needs of applications in engineering. | ZHAO Jun YIN Jing MA Rui MA LiXia | 2011 | Science China(Technological Sciences)2011,54,9: | 27 |
| 12 | Relationship between Cognition Function and Hippocampus Structure after Long-term Microwave Exposure显示文摘Objective To analyze the effects of long-term microwave exposure on hippocampal structure and function in the rat.Methods Experiments were performed on 184 male Wistar rats(three exposure groups and a sham group).Microwaves were applied daily for 6 min over 1 month at average power densities of 2.5,5,and 10 mW/cm2.Learning and memory abilities were assessed by Morris water maze.High performance liquid chromatography was used to detect neurotransmitter concentrations in the hippocampus.Hippocampal structures were observed by histopathological analysis.Results Following long-term microwave exposure there was a significant decrease in learning and memory activity in the 7 d,14 d,and 1 m in all three microwave exposure groups.Neurotransmitter concentrations of four amino acids(glutamate,aspartic acid,glycine,and gamma-aminobutyric acid) in hippocampus were increased in the 2.5 and 5 mW/cm2 groups and decreased in the 10 mW/cm2 group.There was evidence of neuronal degeneration and enlarged perivascular spaces in the hippocampus in the microwave exposure groups.Further,mitochondria became swollen and cristae were disordered.The rough endoplasmic reticulum exhibited sacculated distension and there was a decrease in the quantity of synaptic vesicles.Conclusion These data suggest that the hippocampus can be injured by long-term microwave exposure,which might result in impairment of cognitive function due to neurotransmitter disruption. | ZHAO Li PENG Rui Yun WANG Shui Ming WANG Li Feng GAO Ya Bing DONG Ji LI Xiang SU Zhen Tao | 2012 | Biomedical and Environmental Sciences2012,25,2: | 27 |
| 13 | Three-dimensional cooperative guidance laws against stationary and maneuvering targets显示文摘This paper presents the cooperative strategies for salvo attack of multiple missiles based on the classical proportional navigation(PN) algorithm.The three-dimensional(3-D) guidance laws are developed in a quite simple formulation that consists of a PN component for target capture and a coordination component for simultaneous arrival.The centralized algorithms come into effect when the global information of time-to-go estimation is obtained, whereas the decentralized algorithms have better performance when each missile can only collect information from neighbors.Numerical simulations demonstrate that the proposed coordination algorithms are feasible to perform the cooperative engagement of multiple missiles against both stationary and maneuvering targets.The effectiveness of the 3-D guidance laws is also discussed. | Zhao Jiang Zhou Rui Dong Zhuoning | 2015 | Chinese Journal of Aeronautics2015,28,4: | 28 |
| 14 | Three-dimensional hydrodynamic and water quality model for TMDL development of Lake Fuxian,China显示文摘Lake Fuxian is the largest deep freshwater lake in China.Although its average water quality meets Class I of the China National Water Quality Standard(CNWQS),i.e.,GB3838-2002,monitoring data indicate that the water quality approaches the Class II threshold in some areas.Thus it is urgent to reduce the watershed load through the total maximum daily load(TMDL) program.A three-dimensional hydrodynamic and water quality model was developed for Lake Fuxian,simulating flow circulation and pollutant fate and transport.The model development process consists of several steps,including grid generation,initial and boundary condition configurations,and model calibration processes.The model accurately reproduced the observed water surface elevation,spatiotemporal variations in temperature,and total nitrogen(TN),total phosphorus(TP),and chemical oxygen demand(COD) concentrations,suggesting a reasonable numerical representation of the prototype system for further TMDL analyses.The TMDL was calculated using two interpretations of the water quality standards for Class I of the CNWQS based on the maximum instantaneous surface and annual average surface water concentrations.Analysis of the first scenario indicated that the TN,TP and COD loads should be reduced by 66%,68% and 57%,respectively.Water quality was the highest priority;however,local economic development and cost feasibility for load reduction can pose significant issues.In the second interpretation,the model results showed that,under the existing conditions,the average water quality meets the Class I standard and therefore load reduction is unnecessary.Future studies are needed to conduct risk and cost assessments for realistic decision-making. | Lei Zhao Xiaoling Zhang Yong Liu Bin He Xiang Zhu Rui Zou Yuanguan Zhu | 2012 | Journal of Environmental Sciences2012,24,8: | 25 |
| 15 | Progress in reentry trajectory planning for hypersonic vehicle显示文摘The reentry trajectory planning for hypersonic vehicles is critical and challenging in the presence of numerous nonlinear equations of motion and path constraints, as well as guaranteed satisfaction of accuracy in meeting all the specified boundary conditions. In the last ten years, many researchers have investigated various strategies to generate a feasible or optimal constrained reentry trajectory for hypersonic vehicles. This paper briefly reviews the new research efforts to promote the capability of reentry trajectory planning. The progress of the onboard reentry trajectory planning, reentry trajectory optimization, and landing footprint is summarized. The main challenges of reentry trajectory planning for hypersonic vehicles are analyzed, focusing on the rapid reentry trajectory optimization, complex geographic constraints, and cooperative strategies. | Jiang Zhao Rui Zhou Xuelian Jin | 2014 | Journal of Systems Engineering and Electronics2014,25,4: | 25 |
| 16 | Particle swarm optimization applied to hypersonic reentry trajectories显示文摘This paper presents the novel use of the particle swarm optimization(PSO)to generate the end-to-end trajectory for hypersonic reentry vehicles in a quite simple formulation.The velocitydependent bank angle profile is developed to reduce the search space of unknown parameters based on the constrained PSO algorithm.The path constraints are enforced by setting the fitness function to be infinite on condition that the particles violate the maximum allowable values.The PSO algorithm also provides a much easier means to satisfy the terminal conditions by adding penalty terms to the fitness function.Furthermore,the approximate reentry landing footprint is fast constructed by incorporating an interpolation model into the standardized bank angle profiles.Numerical simulations demonstrate that the PSO method is a feasible and flexible tool to generate the end-to-end trajectory and landing footprint for hypersonic reentry vehicles. | Zhao Jiang Zhou Rui | 2015 | Chinese Journal of Aeronautics2015,28,3: | 24 |
| 17 | Effects of pH and particle size on kinetics of nitrobenzene reduction by zero-valent iron显示文摘Nitrobenzene has been considered as a significant groundwater contaminant due to its wide usage in explosives, insecticides, herbicides, pharmaceuticals and dyes. Nitrobenzene is of environmental concern because of its toxicity. In the presence of zero-valent iron (ZVI), reduction of the nitro group is the dominant transformation process for nitrobenzene. A series of experiments were carried out to investigate the kinetics of nitrobenzene reduction by ZVI and the effects of pH and ZVI particle size on nitrobenzene removal in groundwater. The results indicated that nitrobenzene could be reduced to aniline by ZVI; the reduction of nitrobenzene by ZVI followed a pseudo first-order kinetics; the observed nitrobenzene reduction rate constant (k obs ) was 0.0006 min 1 and the half-life of nitrobenzene (t 1/2 ) was 115.5 min; the mass balance achieved 87.5% for nitrobenzene reduction by the 1 mm ZVI particle and the final removal efficiency was 80.98%. In addition, the pH and ZVI particle size were found to exhibit significant influences on the nitrobenzene reduction. The observed nitrobenzene reduction rate constant linearly decreased with increase pH and the data fitted on polynomial regression equation for the observed nitrobenzene reduction rate constant and ZVI particle size. Therefore, use of ZVI based permeable reactive barrier technology to remedy nitrobenzene contaminated groundwater was feasible. | Jun Dong Yongsheng Zhao Ran Zhao Rui Zhou | 2010 | Journal of Environmental Sciences2010,22,11: | 23 |
| 18 | Hypoglycemic and Hypolipidemic Effects of Lycium barbarum Polysaccharide in Diabetic Rats显示文摘Objective To study the antidiabetic effects and the underlying molecular mechanisms of Lycium barbarum polysaccharide(LBP) and its DEAE cellulose elution fraction LBP-IV in diabetic rats induced by high fat diet(HFD) and streptozotocin(STZ). Methods After ig administration of LBP-IV [50, 100, and 200 mg/(kg·d)] and LBP [100 mg/(kg·d)] once daily for consecutive 4 weeks to diabetic rats, the glucose and lipids in blood, m RNA expression of phosphoenolpyruvate carboxykinase(PEPCK), sterol regulatory element binding-protein-1c(SREBP-1c), and fatty acid synthase(FAS) in liver were determined. Results Ig administration of LBP and LBP-IV significantly decreased the levels of blood glucose, Hb A1 c, TC, TG, and LDL-C, as well as the hepatic m RNA expression of PEPCK, SREBP-1c, and FAS, whereas significantly increased the oral glucose tolerance of diabetic rats. Conclusion The findings suggest that the antidiabetic effects of LBP and LBP-IV are associated with the decreased hepatic m RNA expression of PEPCK, SREBP-1c, and FAS in HFD-STZ induced diabetic rats. | Rong Zhao Rui Jin Yong Chen Feng-mei Han | 2015 | Chinese Herbal Medicines2015,7,4: | 22 |
| 19 | Long-term propagation of tree shrew spermatogonial stem cells in culture and successful generation of transgenic offspring显示文摘树鼯有一种靠近的关系到首领并且在生物医学的研究比啮齿类动物有许多优点。然而,基因操作方法的缺乏妨碍了这个动物的更宽的使用。Spermatogonial 干细胞(SSC ) 成功地在文化被扩展了允许复杂基因在老鼠和老鼠编辑。这里,没有干细胞性质的损失,我们为树鼯 SSC 的长期的扩大描述一个文化系统。在我们的学习,胸腺房间抗原 1 被用来充实树鼯 SSC。定序 RNA 分析表明表明小径的 Wnt/-catenin 在无差别的 SSC 是活跃的,但是是在 SSC 区别的开始之上的 downregulated。树鼯的暴露到 recombinant Wnt3a 蛋白质的主要 SSC 在文化的起始的段落期间提高了 SSC 的幸存。当 feeder 被发现为树鼯 SSC 增长必要,树鼯 Sertoli 房间,然而并非老鼠使用胚胎的成纤维细胞,导致柔韧的房间扩大和长期的文化。扩展的树鼯 SSC 是有提高的绿色的 transfected 荧光灯表示 lentiviral 向量的蛋白质(EGFP ) 。在进消毒的成年的男树鼯睾丸的移植以后,标注 EGFP 的 SSC 能恢复精子发生并且成功地产生转基因的后代。而且,这些 SSC 对 CRISPR/Cas9-mediated 基因修正合适。在有编辑的基因的联合的树鼯 SSC 接近膨胀的一个文化系统的发展用树鼯为精确染色体操作铺平道路。 | Chao-Hui Li Lan-Zhen Yan Wen-Zan Ban Qiu TH Yong Wu Lin Wang Rui Bi Shuang Ji Yu-Hua Ma Wen-Hui Nie Long-Bao Lv Yong-Gang Yao Xu-Dong Zhao Ping Zheng | 2017 | Cell Research2017,27,2: | 22 |
| 20 | A mathematical model for simulating the phase-based transmissibility of a novel coronavirus显示文摘Background:As reported by the World Health Organization,a novel coronavirus(2019-nCoV)was identified as the causative virus of Wuhan pneumonia of unknown etiology by Chinese authorities on 7 January,2020.The virus was named as severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)by International Committee on Taxonomy of Viruses on 11 February,2020.This study aimed to develop a mathematical model for calculating the transmissibility of the virus.Methods:In this study,we developed a Bats-Hosts-Reservoir-People transmission network model for simulating the potential transmission from the infection source(probably be bats)to the human infection.Since the Bats-HostsReservoir network was hard to explore clearly and public concerns were focusing on the transmission from Huanan Seafood Wholesale Market(reservoir)to people,we simplified the model as Reservoir-People(RP)transmission network model.The next generation matrix approach was adopted to calculate the basic reproduction number(R0)from the RP model to assess the transmissibility of the SARS-CoV-2.Results:The value of R0 was estimated of 2.30 from reservoir to person and 3.58 from person to person which means that the expected number of secondary infections that result from introducing a single infected individual into an otherwise susceptible population was 3.58.Conclusions:Our model showed that the transmissibility of SARS-CoV-2 was higher than the Middle East respiratory syndrome in the Middle East countries,similar to severe acute respiratory syndrome,but lower than MERS in the Republic of Korea. | Tian-Mu Chen Jia Rui Qiu-Peng Wang Ze-Yu Zhao Jing-An Cui Ling Yin | 2020 | Infectious Diseases of Poverty2020,9,1: | 22 |