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| 1 | Safety and Efficacy of Low Dosage of Urokinase for Catheter-directed Thrombolysis of Deep Venous Thrombosis显示文摘 | Xiao-Long Du Ling-Shang Kong Qing-You Meng Aimin Qian Wen-Dong Li Hong Chen Xiao-Qiang Li Cheng-Long Li | 2015 | Chinese Medical Journal2015,,13: | 35 |
| 2 | Effect of wind field below unmanned helicopter on droplet deposition distribution of aerial spraying显示文摘Wind field is one of the important factors affecting the distribution characteristics of aerial spraying droplet deposition.In order to reveal the impact mechanism of droplet deposition distribution by the wind field below agricultural unmanned helicopter rotor,in this study,the wind field distribution below uniaxial single-rotor electric unmanned helicopter rotor was measured by using a wireless wind speed sensor network measurement system for unmanned helicopter.The effects of wind field in three directions(X,Y,Z)below the rotor on droplet deposition distribution were analyzed with the condition of aerial spraying droplet deposition in rice canopy,and the regression model was established via variance and regression analyses of experiment results.The results showed that,the wind field in Y direction had a significant effect on droplet deposition in effective spray area,the wind field in Z direction had an extremely significant effect on droplet deposition in effective spray area,and the corresponding significance(sig.)values were 0.011 and 0.000.Furthermore,the wind field in Z direction had a significant effect on the penetrability and uniformity of droplet deposition in effective spray area,the corresponding sig.values were 0.025 and 0.011 respectively.The wind speed in Y direction at the edge of effective spray area had a significant effect on droplet drift,the sig.value was 0.021.In addition,the correlation coefficient R of the regression model was 0.869 between droplet deposition in effective spray area and the wind speed in Y and Z directions,and 0.915 between the uniformity of droplet deposition in effective spray area and the maximum wind speed in Z direction.The result revealed the influencing mechanism of the wind field below the rotor of uniaxial single-rotor electric unmanned helicopter on the distribution of aerial spraying droplet deposition.The results can provide guidance for the actual production application of aerial spraying to reduce liquid drift and improve the utilization rate of pesticide. | Chen Shengde Yubin Lan Li Jiyu Zhou Zhiyan Liu Aimin Mao Yuedong | 2017 | International Journal of Agricultural and Biological Engineering2017,10,3: | 25 |
| 3 | Wheat genomic study for genetic improvement of traits in China显示文摘Bread wheat(Triticum aestivum L.)is a major crop that feeds 40%of the world’s population.Over the past several decades,advances in genomics have led to tremendous achievements in understanding the origin and domestication of wheat,and the genetic basis of agronomically important traits,which promote the breeding of elite varieties.In this review,we focus on progress that has been made in genomic research and genetic improvement of traits such as grain yield,end-use traits,flowering regulation,nutrient use efficiency,and biotic and abiotic stress responses,and various breeding strategies that contributed mainly by Chinese scientists.Functional genomic research in wheat is entering a new era with the availability of multiple reference wheat genome assemblies and the development of cutting-edge technologies such as precise genome editing tools,highthroughput phenotyping platforms,sequencing-based cloning strategies,high-efficiency genetic transformation systems,and speed-breeding facilities.These insights will further extend our understanding of the molecular mechanisms and regulatory networks underlying agronomic traits and facilitate the breeding process,ultimately contributing to more sustainable agriculture in China and throughout the world. | Jun Xiao Bao Liu Yingyin Yao Zifeng Guo Haiyan Jia Lingrang Kong Aimin Zhang Wujun Ma Zhongfu Ni Shengbao Xu Fei Lu Yuannian Jiao Wuyun Yang Xuelei Lin Silong Sun Zefu Lu Lifeng Gao Guangyao Zhao Shuanghe Cao Qian Chen Kunpu Zhang Mengcheng Wang Meng Wang Zhaorong Hu Weilong Guo Guoqiang Li Xin Ma Junming Li Fangpu Han Xiangdong Fu Zhengqiang Ma Daowen Wang Xueyong Zhang Hong-Qing Ling Guangmin Xia Yiping Tong Zhiyong Liu Zhonghu He Jizeng Jia Kang Chong | 2022 | Science China(Life Sciences)2022,65,9: | 9 |
| 4 | An analytical solution to contaminant advection and dispersion through a GCL/AL liner system显示文摘An one-dimensional model for contaminant advection and dispersion through a GCL/AL liner system was developed to analyze the equivalence between a GCL(geosynthetic clay liner) and a CCL(compacted clay liner).The continuity of contaminant concentration and flux at the interface between the GCL and the underlying attenuation liner(AL) are obeyed in the model,and background concentrations in the soil liner are also considered.Based on the assumption that contaminant transport through a GCL was a steady state process,an analytical solution was obtained.Increasing the leachate head from 0.3 m to 10 m results in a reduction of the breakthrough time of benzene by a factor of 2.7.The breakthrough time of benzene increases by a factor of 7.0 when the hydraulic conductivity of GCL decreases by one order of magnitude.The breakthrough curves are more sensitive to the hydraulic conductivities of the GCL and AL(attenuation layer) than to the thickness of the AL.The standard 75 cm CCL can be replaced by a combination of a GCL and a 1.0-4.0 m thickness of AL.The proposed method can be used for preliminary design of GCL composite liners,assessing the equivalence between GCL and CCL,preliminary design of a remediation method for contaminated soils,and evaluating experimental results. | XIE HaiJian LOU ZhangHua CHEN YunMin JIN AiMin CHEN PeiXiong | 2011 | Chinese Science Bulletin2011,56,8: | 8 |
| 5 | Cationic content effects of biodegradable amphoteric chitosan-based flocculants on the flocculation properties显示文摘A series of biodegradable amphoteric chitosan-based flocculants(3-chloro-2-hydroxypropyl trimethyl ammonium chloride(CTA) modified carboxymethyl chitosan,denoted as CMC-CTA) with different substitution degrees of CTA were prepared successfully.The content of carboxymethyl groups in each CMC-CTA sample was kept almost constant.The solubility of the various flocculants showed that,higher cationic content of flocculants caused a better solubility.The flocculation experiments using kaolin suspension as synthetic water at the laboratory scale indicated that the substitution degree of CTA was one of the key factors for the flocculation properties.With the increase of cationic content,the flocculants were demonstrated better flocculation performance and lower dosage requirement.Flocculation kinetics model of particles collisions combining zeta potential and turbidity measurements was employed to investigate the effects of the cationic content of the flocculants on the flocculation properties from the viewpoint of flocculation mechanism in detail.Furthermore,flocculation performance using raw water from Zhenjiang part of Yangtze River at the pilot scale showed the similar effects to those at the laboratory scale. | Zhen Yang Yabo Shang Xin Huang Yichun Chen Yaobo Lu Aimin Chen Yuxiang Jiang Wei Gu Xiaozhi Qian Hu Yang Rongshi Cheng | 2012 | Journal of Environmental Sciences2012,24,8: | 8 |
| 6 | Design System of the Two-step Gear Reducer on Case-based Reasoning显示文摘The design of the two-step gear reducer is a tedious and time-consuming process.For the purpose of improving the efficiency and intelligence of design process,case-based reasoning(CBR) technology was applied to the design of the two-step gear reducer.Firstly,the current design method for the two-step gear reducer was analyzed and the principle of CBR was described.Secondly,according to the characteristics of the reducer,three key technologies of CBR were studied and the corresponding methods were provided,which are as follows:(a) an object-oriented knowledge representation method,(b) a retrieval method combining the nearest neighbor with the induction indexing,and(c) a case adaptation algorithm combining the revision based on rule with artificial revision.Also,for the purpose of improving the credibility of case retrieval,a new method for determining the weights of characteristics and a similarity formula were presented,which is a combinatorial weighting method with the analytic hierarchy process(AHP) and roughness set theory.Lastly,according to the above analytic results,a design system of the two-step gear reducer on CBR was developed by VC++,UG and Access 2003.A new method for the design of the two-step gear reducer is provided in this study.If the foregoing developed system is applied to design the two-step gear reducer,design efficiency is improved,which enables the designer to release from the tedious design process of the gear reducer so as to put more efforts on innovative design.The study result fully reflects the feasibility and validity of CBR technology in the process of the design of the mechanical parts. | JI Aimin HUANG Quansheng XU Huanmin CHEN Zhengming | 2009 | Chinese Journal of Mechanical Engineering2009,22,5: | 6 |
| 7 | GGDEF and EAL proteins play different roles in the control of Sinorhizobium melUoti growth, motility, exopolysaccharide production, and competitive nodulation on host alfalfa显示文摘一个新细菌的第二等的送信人,二度 --(3,5 ) 周期的二聚的 guanosine monophosphate (c-di-GMP ) ,通常被综合或由包含的蛋白质分解了 GGDEF 或 glutamatealanineleucine (EAL ) 领域。因为 c-di-GMP 和他们的基因的 cyclase 或 phosphodiesterase 根据已知的 genomic DNA 序列在几乎所有细菌之中是分布式的,他们经常行动。然而, GGDEF 和 EAL 基因的系统的鉴定在 rhizobia 仍然保持不清楚,与兼容的荚交往到的土壤细菌形成修理氮的小瘤。在这研究, 19 通常认为的 GGDEF 和 EAL 基因在模型根瘤菌被识别, Sinorhizobium meliloti,由生物信息的分析(编码 5 GGDEF 蛋白质和 EAL 双域蛋白质) 。14 基因的空异种通过系统的 plasmid 插入被构造。所有 14 基因异种在最小的中等、有缺点的活动性显示出缺乏的生长,并且 11 基因异种生产了更多的 exopolysaccharide 并且在主人工厂上显示了更少的竞争生节,苜蓿。我们的结果建议 GGDEF 和 EAL 蛋白质可以在 S 的控制起不同作用。meliloti 生理学,尽管他们包含保存催化(GGDEF 或 EAL ) 领域。我们发现也暗示了那 c-di-GMP 可以在在这根瘤菌和它的主人之间的相互作用起一个重要作用种建立有效共生。 | Yiwen Wang Ji Xu Aimin Chen Yanzhang Wang Jiabi Zhu Guanqiao Yu Ling Xu Li Luo | 2010 | Acta Biochimica et Biophysica Sinica2010,42,6: | 5 |
| 8 | An approach to measuring business-IT alignment maturity via DoDAF2.0显示文摘Measuring the business-IT alignment(BITA)of an organization determines its alignment level,provides directions for further improvements,and consequently promotes the organizational performances.Due to the capabilities of enterprise architecture(EA)in interrelating different business/IT viewpoints and elements,the development of EA is superior to support BITA measurement.Extant BITA measurement literature is sparse when it concerns EA.The literature tends to explain how EA viewpoints or models correlate with BITA,without discussing where to collect and integrate EA data.To address this gap,this paper attempts to propose a specific BITA measurement process through associating a BITA maturity model with a famous EA framework:DoD Architectural Framework 2.0(DoDAF2.0).The BITA metrics in the maturity model are connected to the meta-models and models of DoDAF2.0.An illustrative ArchiSurance case is conducted to explain the measurement process.Systematically,this paper explores the process of BITA measurement from the viewpoint of EA,which helps to collect the measurement data in an organized way and analyzes the BITA level in the phase of architecture development. | ZHANG Mengmeng CHEN Honghui MAO Yi LUO Aimin | 2020 | Journal of Systems Engineering and Electronics2020,31,1: | 5 |
| 9 | Multipoint observations of Pi2 pulsations and correlation with dynamic processes in the near-Earth magnetotail on March 18,2009显示文摘Simultaneous measurements from THEMIS spacecraft,GOES-11 and ground stations(Canadian Array for Realtime Investigations of Magnetic Activity or CARISMA,and 210°magnetic meridian or MM)on March 18,2009 allow the study of dynamic processes in the near-Earth magnetotail and corresponding Pi2 pulsations on the ground in great detail.Fast earthward flows along with traveling Alfvén waves and fast mode waves in the Pi2 band were observed by three Time History of Events and Macroscale Interactions during Substorms(THEMIS)probes(P3,P4 and P5)in the near-Earth plasmasheet.At the mid-to high-latitude nightside,the CARISMA stations located near the foot points of the three probes recorded Pi2s with two periods,about 80 s after the earthward fast flows observed by the P4 probe.The long-period Pi2(140–150 s)belongs to the transient response Pi2(TR Pi2),since the travel time of the Alfvén waves between the plasma sheet and CARISMA stations is very close to half the period of the long-period Pi2.The short-period Pi2(60–80 s)has the same period band as the perpendicular velocity of the fast flows,which indicates that it may relate to the inertial current caused by periodic braking of the earthward fast flows.The 210°MM stations located at the low-latitude duskside also observed Pi2s with the same start time,waveform and frequency,about^120 s after the earthward fast flows.Strong poloidal oscillations are shown by GOES-11(~23 MLT)and the compressional component(Bb)is highly correlated with H components of the 210°MM stations,whereas the other two components(Br and Be)are not.These results confirm that the low-latitude Pi2s are generated by cavity mode resonance,which is driven by an impulsive broadband source in the near-Earth magnetotail. | LUO Hao CHEN GengXiong DU AiMin | 2014 | Science China Earth Sciences2014,57,2: | 5 |
| 10 | Highway constructions on the Qinghai-Tibet Plateau:Challenge,research and practice显示文摘Highway constructions on the Qinghai-Tibet Plateau(QTP)face great challenges induced by the unique local environmental,geological,and engineering conditions.The large area of permafrost,great temperature variability,strong UV rays,and complex geological conditions are the major factors that adversely influence the longterm performance of pavement systems.Since 1960s,Chinese engineers and researchers have started conducting research on the QTP to enhance the performance and durability of pavement systems.The present paper provide a comprehensive review of challenge,research and practice of highway constructions on the QTP including the special environmental and geological conditions,history of highway constructions on the QTP,major challenges and the state-of-the-art technology of subgrade constructions on permafrost,developments of the pavement structures and materials,performance prediction and maintenance methods of pavement surfaces,and applications of the research achievements on the first expressway on the QTP(i.e.,Gongyu Expressway).Based on the comprehensive literature review,it can be found that(1)frost heave and thaw weakening induced subgrade disease and longitudinal cracks on the pavement surface are complex coupled water-thermal-load problems.Engineering solutions are focusing on active cooling and thermal insulation methods,which can help to reduce temperature variations in the subgrade and thus improving its stability,(2)the harsh environmental and construction conditions may reduce the early strength and induce premature damage of cement-treated base materials.Some field validations showed that geocell-reinforced or asphalt-treated flexible base materials can provide better long-term performance,(3)the large temperature variability and strong UV rays can significantly accelerate aging of asphalt binders and greatly reduce the service life of asphalt mixtures.Various binder modification methods were developed for improving their viscoelasticity and enhance the low-temperature cracking resistance of pavement surface materials but are still lack of field validation data and comparisons of their life cycle costs.Therefore,it is recommended that a demonstration research project build test sections to examine a range of pavement structures and materials,and compare their long-term performance and life cycle costs,which can serve as important reference for future highway constructions on the QTP. | Aimin Sha Biao Ma Hainian Wang Liqun Hu Xuesong Mao Xilan Zhi Huaxin Chen Yu Liu Feng Ma Zhuangzhuang Liu Rui He Wei Si Xuhao Wang Cheng Li | 2022 | Journal of Road Engineering2022,2,1: | 4 |
| 11 | Molecular and Functional Characterization of Sphingosine-1-Phosphate Lyase Homolog from Higher Plants显示文摘Sphingosine-1-phosphate lyase (系统程序设计语言) 涉及降级表明分子 sph-ingosine-1-phosphate 的 conservedsphingolipid。从 Arabidopsis thaliana 和米饭的通常认为的系统程序设计语言蛋白质的生物信息、分子、功能的分析(指定了为 AtSPL 和 OsSPL,分别地) 被进行。氨基酸顺序比较表明植物系统程序设计语言包含了 thepyridoxal 依赖的脱羧酶领域和可以涉及底层催化作用的保存残余。当在 Saccharomyces cerevisiae 表示了时, AtSPL 和 OsSPL 改正了酵母 dpl1 删除紧张的过分敏感的显型,它在内长的系统程序设计语言活动是缺乏的,到长链基于的外长的 sphingolipid (LCB ) ,建议那植物系统程序设计语言蛋白质是在降级的 phosphorylated LCB 的功能的 invivo。在 A。thaliana, AtSPL 抄本在根,茎,叶子,花和 siliques 被检测。在 pAtSPL-AtSPL::GUS 转基因的线, AtSPL::GUS 熔化蛋白质在许多植物、繁殖的纸巾被发现。AtSPL 表示水平动态地在叶开发和老朽期间被调整,并且稳定地并且显著地在 A 被增加。thaliana 幼苗在 A 与房间对待系统程序设计语言的导致死亡的真菌的毒素 fumonisin B1.The 潜在的功能。thaliana 被讨论…… | Yan Niu Kunling Chen Jizhou Wang Xin Liu Huanju Qin Aimin Zhang Daowen Wang | 2007 | Journal of Integrative Plant Biology2007,49,3: | 3 |
| 12 | Nightside field-aligned current during the April 6,2000 superstorm显示文摘Using the east-west geomagnetic disturbance fields observed from stations at mid-latitudes,we investigate the characteristics of field-aligned currents on the nightside during the April 6,2000 superstorm.The results indicate that there is an eastward disturbance on the nightside of Northern Hemisphere during the main phase of magnetic storm,while the interplanetary magnetic field(IMF)is continued southward.The positive disturbances in the postmidnight are larger than that in the premidnight.This suggests that upward field-aligned currents develop on the nightside,when the IMF is directed southward.The peak of upward fieldaligned currents is located in postmidnight,and it will be more obvious at substorm expansion.We get the conclusion that both partial ring current and region-2 field-aligned current shift to dusk sector.The upward region-2 current is decreased at substorm onset,and intensified after it.We also investigate the relationship between the upward field-aligned currents on the nightside and the auroral electrojets at high latitudes.It shows a good correspondence between region-2 current and the westward electrojet in the postmidnight.We suppose that they are both associated with the convection electric field. | WANG Yuan HONG MingHua CHEN GengXiong XU WenYao DU AiMin ZHAO XuDong LIU XiaoCan LUO Hao | 2010 | Chinese Science Bulletin2010,55,20: | 3 |
| 13 | Analysis of genetic alterations identifies the frequent mutation of GNAS in colorectal laterally spreading tumors显示文摘Dear Editor,Colorectal cancer(CRC)is among the most commonly diagnosed cancer and the leading cause of cancer-related death worldwide[1].Most CRCs develop from adenomas.Laterally spreading tumors(LSTs)are non-polypoid superficial colorectal neoplasms(CRNs)that are larger than 1 cm and typically extend laterally along the luminal wall.Based on surface morphology,it can be classified into a granular or nongranular type.The pathological morphology of LST manifests only as adenoma or with cancer.Recent studies have characterized 45-79%of LSTs as high-grade intraepithelial neoplasia(HGIN)or submucosal invasion;and the risk of submucosal invasion increases with lesion size[2].Hence,LST is considered a precancerous CRC lesion.Patients with LSTs are usually asymptomatic and diagnosis typically occurs during physical examinations or screening colonoscopy. | Lei Pan Junsheng Chen Chaojun Zhu Lu Han Aimin Li Side Liu | 2020 | Cancer Communications2020,40,11: | 3 |
| 14 | Integrated Manufacturing Cell Formation Technology Orienting Multi-product Type and Variant Volume Production显示文摘What is pursued by multi-product type and variant volume(MPTVV) production is rapid response and quick switching,so that structure of transferring line in manufacturing system is no longer unalterable.Cell formation(CF) algorithm is the key technology of cellular manufacturing system(CMS).Currently,CF methods are mainly extended on the idea of group technology(GT) that covers a lot on analysis of resource capability matching and its algorithm.Various constraints are considered,but seldom utilized comprehensively.Aimed to the problem of manufacturing cell(MC) formation under MPTVV production mode,integrated formation technologies for typical MC as group type of cell(GC),flow type of cell(FC) and inherited cell(IC) are presented based on technical analysis of CF.Oriented to practical production constraints like delivery time,product batch,equipment ability,key machine,key part and machine sharing,etc,an integrated formation model is constructed and internal interrelations of these constraints are analyzed synthetically.Ulteriorly,formation goals of types of MCs and their formation procedures under joint effect of formation constraints and rules are spread.In case study,three highly balanced GC are formed first;then FC formation are implemented based on the same data which indicate good balancing effect of cell load and flow-style production for key tasks;When task is adjusted,a new scheme is constructed on the result of FC configuration by using IC formation method,and more optimal performance of flow-style production is manifested.The proposed comparative study of different type of cells strongly explains the validation of integrated MC formation in support of rapid manufacturing resource transformation under MPTVV production mode. | CHEN Huawei WANG Aimin NING Ruxin SHAO Canxia | 2011 | Chinese Journal of Mechanical Engineering2011,24,1: | 2 |
| 15 | Methylesterification of cell-wall pectin controls the diurnal flower-opening times in rice显示文摘Flowers are the core reproductive organ of plants, and flowering is essential for cross-pollination. Diurnal flower-opening time is thus a key trait influencing reproductive isolation, hybrid breeding, and thermostability in plants. However, the molecular mechanisms controlling this trait remain unknown. Here, we report that rice Diurnal Flower Opening Time 1 (DFOT1) modulates pectin methylesterase (PME) activity to regulate pectin methylesterification levels of the lodicule cell walls, which affect lodicule swelling to control diurnal flower-opening time. DFOT1 is specifically expressed in the lodicules, and its expression gradually increases with the approach to flowering but decreases with flowering. Importantly, a knockout of DFOT1 showed earlier diurnal flower opening. We demonstrate that DFOT1 interacts directly with multiple PMEs to promote their activity. Knockout of PME40 also resulted in early diurnal flower opening, whereas overexpression of PME42 delayed diurnal flower opening. Lower PME activity was observed to be associated with higher levels of pectin methylesterification and the softening of cell walls in lodicules, which contribute to the absorption of water by lodicules and cause them to swell, thus promoting early diurnal flower opening. Higher PME activity had the opposite effect. Collectively, our work uncovers a molecular mechanism underlying the regulation of diurnal flower-opening time in rice, which would help reduce the costs of hybrid breeding and improve the heat tolerance of flowering plants by avoiding higher temperatures at anthesis. | Mumei Wang Xiaopei Zhu Guoqing Peng Minglong Liu Shuqing Zhang Minghao Chen Shitang Liao Xiaoying Wei Peng Xu Xiyu Tan Fangping Li Zhichuan Li Li Deng Ziliang Luo Liya Zhu Shuai Zhao Dagang Jiang Jing Li Zhenlan Liu Xianrong Xie Shaokui Wang Aimin Wu Chuxiong Zhuang Hai Zhou | 2022 | Molecular Plant2022,15,6: | 2 |
| 16 | An analytical solution to organic contaminant diffusion through composite liners considering the effect of degradation显示文摘 | Haijian Xie Zhanghua Lou Yunmin Chen Aimin Jin Tony Liangtong Zhan Xiaowu Tang | 2013 | Geotextiles and Geomembranes2013,,: | 2 |
| 17 | Upper Paleozoic Marine Shale Characteristics and Exploration Prospects in the Northwestern Guizhong Depression,South China显示文摘Multiple sets of organic-rich shales developed in the Upper Paleozoic of the northwestern Guizhong Depression in South China. However, the exploration of these shales is presently at a relatively immature stage. The Upper Paleozoic shales in the northwestern Guizhong Depression, including the Middle Devonian Luofu shale, the Nabiao shale, and the Lower Carboniferous Yanguan shale, were investigated in this study. Mineral composition analysis, organic matter analysis(including total organic carbon(TOC) content, maceral of kerogen and the vitrinite reflection(Ro)), pore characteristic analysis(including porosity and permeability, pore type identification by SEM, and pore size distribution by nitrogen sorption), methane isothermal sorption test were conducted, and the distribution and thickness of the shales were determined, Then the characteristics of the two target shales were illustrated and compared. The results show that the Upper Paleozoic shales have favorable organic matter conditions(mainly moderate to high TOC content, type Ⅰ and Ⅱ_1 kerogen and high to over maturity), good fracability potential(brittleness index(BI) > 40%), multiple pore types, stable distribution and effective thickness, and good methane sorption capacity. Therefore, the Upper Paleozoic shales in the northern Guizhong Depression have good shale gas potential and exploration prospects. Moreover, the average TOC content, average BI, thickness of the organic-rich shale(TOC > 2.0 wt%) and the shale gas resources of the Middle Devonian shales are better than those of the Lower Carboniferous shale. The Middle Devonian shales have better shale gas potential and exploration prospects than the Lower Carboniferous shales. | ZHU Zhenhong YAO Genshun LOU Zhanghua JIN Aimin ZHU Rong JIN Chong CHEN Chao | 2018 | Journal of Ocean University of China2018,17,4: | 2 |
| 18 | Comparing the diurnal variations in the SuperMAG auroral electrojet indices SML and SMU显示文摘Diurnal variations of the SuperMAG auroral electrojet indices(SML and SMU)were examined for the period of 1980–2010,and the differences between SML and SMU were especially analyzed.The diurnal variation of SML with a maximum at around 1100 UT has a prenoonpostnoon asymmetry.At solstices,the diurnal variation of SML is much stronger than that at equinoxes.For the SMU,two maxima are recorded in the diurnal variation with the bigger one at 1700 UT and the smaller one at 0400 UT.The seasonal variations are not obvious in the UT variation characteristics of SMU although the intensity of SMU is changed remarkably season by season.For both SML and SMU,the contributing stations are located at higher geomagnetic latitude around 1600 UT and at lower geomagnetic latitude around 0400 UT.These results indicate that:(1)the SML is mostly controlled by the convection electric field.Its diurnal variation is mainly correlated with the equinoctial and R-M hypothesis;(2)the SMU is largely controlled by the ionospheric conductance.Its diurnal variation is tightly correlated with the solar radiation. | Yuan Wang Aimin Du Gengxiong Chen Xin Cao Ying Zhang Min Li Xiaocan Liu Jianpeng Guo | 2014 | Chinese Science Bulletin2014,59,29: | 2 |
| 19 | Generation of transgenic cucumbers with expression of a ten-tandem repeat long-acting GLP-1 analogue and their biological function on diabetic rats显示文摘Glucagon-like peptide-1 (GLP-1) is a 30-amino acid peptide hormone, which has the regulatory function of stimulating the secretion of insulin to balance blood glucose levels. In this study, marker-free expression vector pX6 with a fusion gene of ten tandem repeated GLP-1 analog ([Ser8, Gln26 and Asp34]-GLP-1) genes was constructed and transformed into cucumbers by Agrobacterium tumefaciens-mediated transformation method. Four transgenic lines were obtained by PCR and Southern blotting analysis and two transgenic lines successfully expressed the fusion protein (named GLP-T), which was revealed by Western blotting analysis. The biological activity test results showed that the serum glucose level of diabetic rats was significantly decreased after oral administration of the fusion protein GLP-T extracted from the transgenic cucumber fruitage. These results suggest that this may provide a brand-new strategy to prevent and cure the diabetes with no pain. | ZHAO Lei LIAO Fang WANG CuiYan CHEN Miao WEI AiMin DU ShengLi MA BaiCheng HU XiaoYu WU ZhiQiang WANG RuiJu LI MingGang | 2009 | Chinese Science Bulletin2009,54,24: | 2 |
| 20 | Geomagnetic responses in high latitudes during the storm of July 15-16显示文摘 | Chen Gengxiong Du Aimin Xu Wenyao etal | 2002 | Science in China (A)2002,,: | 1 |