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| 1 | Hybrid PdAg alloy-Au nanorods: Controlled growth, optical properties and electrochemical catalysis显示文摘高质量的混合 nanostructures 的可控制的生长为层次、复杂、多功能的设备的制造是高度合乎需要的。这里, PdAg 合金在金 nanorods 上的不同地点是 controllably 成年的,生产有在金牌的结束的 PdAg 的像哑铃的 nanostructures 有种的 PdAg 的 nanorods 或分叉的 nanostructures 对金 nanorods 几乎垂直。金 nanorods 上的 PdAg 合金的成核地点能被改变 H2PdCl4, AgNO3 和 cetyltrimethylammonium 溴化物(CTAB ) 的集中有效地调节。像哑铃、分叉的 nanostructures 被传播描绘电子显微镜学(TEM ) ,高分辨率的 TEM (HRTEM ) ,扫描线的精力散的 X 光检查光谱学(版本) , X 光检查光电子光谱学(XPS ) 和紫外力的吸收光谱学。他们的 electrocatalytic 表演作为探查反应用乙醇氧化被评估。像哑铃的 nanostructures 比分叉的显示出更好毒害反的表演,而是一项更坏的电气化学的活动。结果为基本研究或潜在的应用为复杂 nanostructures 的控制生长提供指南。 | Qiao Zhang Xia Guo Zhenxing Liang Jianhuang Zeng Jian Yang Shijun Liao | 2013 | Nano Research2013,6,8: | 10 |
| 2 | Nonlinear dynamics of a flapping rotary wing:Modeling and optimal wing kinematic analysis显示文摘The analysis of the passive rotation feature of a micro Flapping Rotary Wing(FRW)applicable for Micro Air Vehicle(MAV) design is presented in this paper. The dynamics of the wing and its influence on aerodynamic performance of FRW is studied at low Reynolds number(~10~3).The FRW is modeled as a simplified system of three rigid bodies: a rotary base with two flapping wings. The multibody dynamic theory is employed to derive the motion equations for FRW. A quasi-steady aerodynamic model is utilized for the calculation of the aerodynamic forces and moments. The dynamic motion process and the effects of the kinematics of wings on the dynamic rotational equilibrium of FWR and the aerodynamic performances are studied. The results show that the passive rotation motion of the wings is a continuous dynamic process which converges into an equilibrium rotary velocity due to the interaction between aerodynamic thrust, drag force and wing inertia. This causes a unique dynamic time-lag phenomena of lift generation for FRW, unlike the normal flapping wing flight vehicle driven by its own motor to actively rotate its wings. The analysis also shows that in order to acquire a high positive lift generation with high power efficiency and small dynamic time-lag, a relative high mid-up stroke angle within 7–15° and low mid-down stroke angle within -40° to -35° are necessary. The results provide a quantified guidance for design option of FRW together with the optimal kinematics of motion according to flight performance requirement. | Qiuqiu WEN Shijun GUO Hao LI Wei DONG | 2018 | Chinese Journal of Aeronautics2018,31,5: | 8 |
| 3 | Magnetic two-dimensional layered crystals meet with ferromagnetic semiconductors显示文摘The existence of intrinsic ferromagnetic semiconductors(FMSs)in twodimensional(2D)materials has been a long-term concern and pursuit.Recent breakthroughs in the 2D FMSs,such as CrGeTe3 and CrX3(X=Cl,Br,I)from bulk down to monolayer,have stimulated intensive researches on new physical phenomena and creative concepts.This minireview mainly summarizes recent progress of 2D intrinsic FMSs in theoretical side,and focuses on the ongoing strategies proposed to enhance ferromagnetism,involving the mechanisms of magnetic exchange interaction and the significance of magnetic anisotropy.Meanwhile,spin-related multifunctionality with ultrathin FMSs and their van de Waals heterostructures in magnetoelectric,valleytronic,and nondissipative electronic technology are introduced,as well as the current challenges and the prospects in this field are discussed. | Yilv Guo Bing Wang Xiwen Zhang Shijun Yuan Liang Ma Jinlan Wang | 2020 | InfoMat2020,2,4: | 6 |
| 4 | Distinct immune signatures discriminate between asymptomatic and presymptomatic SARS-CoV-2^(pos)subjects显示文摘Increasing numbers of SARS-CoV-2-positive(SARS-CoV-2^(pos))subjects are detected at silent SARS-CoV-2 infection stage(SSIS).Yet,SSIS represents a poorly examined time-window wherein unknown immunity patterns may contribute to the fate determination towards persistently asymptomatic or overt disease.Here,we retrieved blood samples from 19 asymptomatic and 12 presymptomatic SARS-COV-2^(pos)subjects,47 age/gender-matched patients with mild or moderate COVID-19 and 27 normal subjects,and interrogated them with combined assays of 44-plex CyTOF,RNA-seq and Olink.Notably,both asymptomatic and presymptomatic subjects exhibited numerous readily detectable immunological alterations,while certain parameters including more severely decreased frequencies of CD107a^(low)classical monocytes,intermediate monocytes,non-classical monocytes and CD62L^(hi)CD8^(+)Tnaive cells,reduced plasma STC1 level but an increased frequency of CD4^(+)NKT cells combined to distinguish the latter.Intercorrelation analyses revealed a particular presymptomatic immunotype mainly manifesting as monocytic overactivation and differentiation blockage,a likely lymphocyte exhaustion and immunosuppression,yielding mechanistic insights into SSIS fate determination,which could potentially improve 5ARS-CoV-2 management. | Shanhe Yu Caixia Di Shijun Chen Mingquan Guo Jiayang Yan Zhaoqin Zhu Li Liu Ruixue Feng Yinyin Xie Ruihong Zhang Juan Chen Mengxi Wang Dong Wei Hai Fang Tong Yin Jinyan Huang Saijuan Chen Hongzhou Lu Jiang Zhu Jieming Qu | 2021 | Cell Research2021,31,11: | 4 |
| 5 | Research Progress of Active Ingredients and Pharmacological Action of Honeysuckle显示文摘Honeysuckle,the dry flower bud or with open flower of Lonicera japonica in caprifoliaceae,has been touted as a cure-all for heat-clearing and detoxifying effect.Honeysuckle contains abundant components such as volatile oil,flavonoids and organic acids,playing the role of antibiosis,antivirus,antiphlogosis,immunopotentiation and antioxidation.The active ingredients and pharmacological action of honeysuckle are reviewed in the paper,so as to lay the foundation for further application of honeysuckle in veterinary clinic. | Zhang Zhimei Guo Shijin Fu Shijun Xu Qianqian Yang Limei Zhang Ying Wang Yanping Ma Li Wang Jianjun Shen Zhiqiang | 2014 | Animal Husbandry and Feed Science2014,6,1: | 4 |
| 6 | Synthesis and DNA Adsorption of Poly(2-Vinyl-4,6-Diamino-1,3,5-Triazine)Coated Polystyrene Microspheres显示文摘To take advantage of the polymer's special properties, we synthesized PVDAT coated polystyrene(PVDAT@PS) microspheres through semi-continuous precipitation polymerization, and demonstrated the possibility of controlling the size of microspheres by using different sized PS cores. Mechanism of the microsphere synthesis was investigated. Preliminary application studies indicated that the synthesized microspheres adsorbed double-stranded DNAs(dsDNAs) comprising A-T base pairs in pH7.4 phosphate buffered saline, and the adsorption capacity was in a range of 3.28 mg to 5.58 mg per gram PVDAT@PS microspheres depending on A-T base pair percentage and chain length of the dsDNAs. | 黄雷 王小涛 XIE Xun XIE Weihong LI Xuefeng GONG Xinghou LONG Shijun GUO Huiling 刘最芳 | 2018 | Journal of Wuhan University of Technology(Materials Science)2018,33,4: | 3 |
| 7 | Arbuscular mycorrhizal fungi differ in affecting the flowering of a host plant under two soil phosphorus conditions显示文摘Aims Studies have showed that arbuscular mycorrhizal fungi(AMF)can greatly promote the growth of host plants,but how AMF affect flow-ering phenology of host plants is not well known.Here,we con-ducted a pot experiment to test whether life cycle and flowering phenology traits of host plant Medicago truncatula Gaertn can be altered by AMF under low and high soil phosphorus(P)levels.Methods the experiment was conducted in a greenhouse at Zhejiang University in China(120°19′E,30°26′N)and had a completely ran-domized design with two factors:AMF treatments and soil P levels.Six AMF species(Acaulospora scrobiculata,As;Gigaspora marga-rita,Gma;Funneliformis geosporum,Fg;Rhizophagus intraradices,Ri;Funneliformis mosseae,Fmo and Glomus tortuosum,Gt.)were used,and two soil P levels(24.0 and 5.7 mg kg−1 Olsen-soluble P)were designed.the six AMF species were separately inoculated or in a mixture(Mix),and a non-AMF control(NAMF)was included.When plants began to flower,the number of flowers in each pot was recorded daily.During fruit ripening,the number of mature fruits was also recorded daily.After~4 months,the biomass,bio-mass P content and AMF colonization of host plant were measured.Correlation between root colonization and first flowering time,or P content and first flowering time was analyzed.Important Findings Under the low P level,first flowering time negatively correlated with root colonization and biomass P.Only host plants with AMF spe-cies As,Fg,Ri,or Mix were able to complete their life cycle within 112 days after sowing.And treatment with AMF species Fg,Gt,or As resulted in two periods of rapid flower production while other fungi treatments resulted in only one within 112 days after sowing.the cumulative number of flowers produced and biomass P content were highest with species Fg.Host biomass allocation significantly differed depending on the species of AMF.Under both soil P levels,the host plant tended to allocate more biomass to fruits in the Mix treatment than in the other treatments.these results indicated that the effects of AMF on host flowering phenology and biomass allocation differed depending on AMF species and soil P levels. | Shijun Liu Hanling Guo Jing Xu Zeyuan Song Shurui Song Jianjun Tang Xin Chen | 2018 | Journal of Plant Ecology2018,11,4: | 3 |
| 8 | Changes in peripheral blood leukocyte subpopulations in piglets co-infected experimentally with porcine reproductive and respiratory syndrome virus and porcine circovirus type 2显示文摘 | Kaichuang Shi Huanrong Li Xin Guo Xinna Ge Hong Jia Shijun Zheng Hanchun Yang | 2007 | Veterinary Microbiology2007,,3: | 2 |
| 9 | Problems and countermeasures in construction of transmission line projects in permafrost regions显示文摘Construction of power transmission lines is becoming an important part of permafrost engineering in China.This paper reviews the construction status and problems of transmission lines in different countries,as well as corresponding solutions that would be of practical significance for sustainable engineering practices.Russia has the longest history of transmission line construction in permafrost areas,with transmission lines(mainly 220 kV and 500 kV) spanning approximately 100,000 km.However,all countries suffer from permafrost-related tower foundation stability problems caused by freezing-thawing hazards such as frost heave and thaw settlement,frost lifting,and harmful cryogenic phenomena.As point-line transmission line constructions,the lines,poles and towers should be reasonably selected and installed with a comprehensive consideration of frozen soil characteristics to effectively reduce the occurrence of freezing-thawing disasters.Reinforced concrete pile foundations are widely used in the permafrost regions,and construction in winter is also a universal practice.Moreover,facilitating engineering measures like thermosyphons are an effective way to reduce freezing-thawing hazards and to maintain the stability of tower foundations. | GuoShang Wang QiHao Yu YanHui You Ze Zhang Lei Guo ShiJun Wang Yong Yu | 2014 | Research in Cold and Arid Regions2014,6,5: | 2 |
| 10 | Determination of Berberine Hydrochloride Content in Qingwen Baidu Granule by HPLC显示文摘The paper was to establish a simple and sensitive HPLC method for determination of berberine hydrochloride content in Qingwen Baidu granule.The HPLC system consisted of Stable Bond- C18 column(4.6×150 mm,5μm) and with a mobile phase of acetonitrile- 0.05mol / L potassium dihydrogen phosphate solution(50∶50,v∶v) mixture.Berberine hydrochloride was detected at the wavelength of 345 nm,with a flow rate of 1.0 mL / min and a column temperature of30 ℃.The excipients and solvents in the granule could be well separated from the drug under such a designated chromatogram condition and did not interfere with the assay.A good linear relationship was found between peak area and the concentration of berberine hydrochloride in the range of 16.0- 48.0 μg / mL.The average recovery of berberine hydrochloride was 99.09%.The established approach was specific,accurate,reliable,prompt,sensitive and applicable,and could be used to control the quality of Qingwen Baidu granule. | Guo Shijin Wang Yanping Fu Shijun Zhang Zhimei Xu Qianqian Shen Zhiqiang | 2014 | Animal Husbandry and Feed Science2014,6,1: | 2 |
| 11 | Modeling, Simulation and Optimal Control for an Aircraft of Aileron-less Folding Wing 显示文摘 | Wang Zhengjie Guo Shijun Li Wei | 2008 | WSEAS Transac-tions on Systems and Control2008,3,10: | 1 |
| 12 | Advance in Effect of Veterinary Drug Residues on Ecological Environment显示文摘Thousands of tons of pharmaceutically active substances are used in veterinary medicines in intensive livestock and poultry production,but most of the drugs are poorly absorbed by animals and excreted with the animal feces. The veterinary medicines can cause various kinds of harmful impact to the environment.Now the relevant research has been a hot all over the world. With the feces excreted to the environment,the veterinary medicines can be accumulated in the soil and water,and produce all sorts of reaction. Some medicines can cause toxic effect to animals,plants and microorganisms. The article summarized the residue,the environmental impact,the transformation and the development direction of the veterinary medicine in the environment to supply frame of reference for further research. | Zhang Zhimei Fu Shijun Guo Shijin Zhang Ying Ma Li Yang Limei Wang Jianjun Shen Zhiqiang | 2015 | Animal Husbandry and Feed Science2015,7,3: | 1 |
| 13 | Selecting and exspressing protective single-chain Fv fragment to stabilize L-asparaginase against inactivation by trypsin显示文摘 | Guo li Yan Xiyun Shijun | 2000 | Biotechnol Appl Biochem2000,31,: | 1 |
| 14 | Aeroelasticdynamic response and control of an airfoil section withcontrol surface nonlinearities显示文摘 | Li Daochun Guo Shijun Xiang Jinwu | 2010 | Journal of Sound andVibration2010,329,: | 1 |
| 15 | Motivation ——Theories and Beyond显示文摘Most language teachers will agree that motivation of the students is one of the most important factors influencing their success or failure in language learning. Corder’s phrase, “ Given motivation, anyone can learn a language' brings out the importance of motivation and the way it can overcome unfavourable circumstances in other aspects of language learning. There have been overwhelming researches & literature on this area. However, the definition and study of motivation have not been without problem. This paper starts with a brief historical review on psychological approaches underlying motivational research, followed by the remarkable motivation theories. The third part is concerned with SL/FL motivation, which attempts to relate the findings on motivation with situation of China. | Guo Limin Zhai Shijun\ \ | 2000 | 首都师范大学学报(社会科学版)2000,,S2: | 1 |
| 16 | Buckling and post-buckling of a composite C-section with cutout and flange reinforce- ment显示文摘 | Guo Shijun Li Daochun Zhang Xiang | 2014 | Composites Part B : Engineering2014,60,4: | 1 |
| 17 | Aeroelastic Tailoring of Composite Wing Structures by Laminate Layup Optimization显示文摘 | Shijun Guo Wenyuan Cheng Degang Cui | 2006 | American Institute of Aeronautics and Astronautics Journal2006,44,12: | 1 |
| 18 | Electrocatalytic oxidation and simultaneous determination of uric acid and ascorbic acid on the gold nanoparticles-modified glassy carbon electrode显示文摘 | Guangzhi Hu Yonggen Ma Yong Guo Shijun Shao | 2008 | Electrochimica Acta2008,,22: | 1 |
| 19 | Simultaneous Determination of Sulfamonomethoxine Sodium and Trimethoprim in Compound Sulfamonomethoxine Sodium Propolis Solution by High Performance Liquid Chromatography(HPLC)显示文摘[Objective] The paper aimed to provide a basis for quality control of compound sulfamonomethoxine sodium propolis solution. [Method] High performance liquid chromatography( HPLC) method was used to determine the contents of sulfamonomethoxine sodium and trimethoprim simultaneously in compound sulfamonomethoxine sodium propolis solution. [Result]Sulfamonomethoxine sodium and trimethoprim showed a linear relationship within the concentration of 10-500 μg / m L under the following chromatographic conditions: Kromasil C18column( 250 mm × 4. 6 mm,5 μm),mobile phase 0. 02 mol / L phosphoric acid solutionmethanol( 80∶20,V / V),detection wavelength 270 nm,flow rate 1. 0 m L / min,and column temperature 30℃. The average recoveries were 99. 3% and 99. 4%,respectively. [Conclusion] The method is accurate and feasible,and can determine sulfamonomethoxine sodium and trimethoprim simultaneously in compound sulfamonomethoxine sodium propolis solution. | Guo Shijin Zhang Zhimei Fu Shijun Tang Shiyun Shen Zhiqiang | 2015 | Animal Husbandry and Feed Science2015,7,4: | 1 |
| 20 | Use of RNAi silencing to target preconditioned glial cell line-derived neurotrophic factor in neuronal apoptosis显示文摘Several studies have suggested that exogenous glial cell line-derived neurotrophic factor may pro-tect neurons from cerebral ischemic injury. However, the mechanisms underlying the neuroprotec-tive effects of endogenous glial cell line-derived neurotrophic factor remain unclear. The present experiments sought to elucidate the influence of various conditioned media on neuronal apoptosis, using a normal culture medium for astrocytes, an astrocyte medium highly expressing glial cell line-derived neurotrophic factor, and an astrocyte medium in which glial cell line-derived neurotro-phic factor expression was silenced using RNAi technology. The results confirmed that the use of RNAi silencing to target pretreated glial cell line-derived neurotrophic factor expression promoted neuronal apoptosis. In addition, oxygen and glucose deprivation preconditioning was found to upregulate glial cell line-derived neurotrophic factor expression, and significantly reduce neuronal apoptosis. | Hongliang Guo Xinhua Li Jing Mang Ying Xing Jinting He Guihua Xu Shijun Yan LifengLiu Chunli Mei Zhongxin Xu | 2011 | Neural Regeneration Research2011,6,7: | 1 |