|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Modeling the distribution of Populus euphratica in the Heihe River Basin, an inland river basin in an arid region of China显示文摘Populus euphratica is a dominant tree species in riparian Tugai forests and forms a natural barrier that maintains the stability of local oases in arid inland river basins. Despite being critical information for local environmental protection and recovery, establishing the specific spatial distribution of P. euphratica has rarely been attempted via precise and reliable species distribution models in such areas. In this research, the potential geographic distribution of P. euphratica in the Heihe River Basin was simulated with MaxEnt software based on species occurrence data and 29 environmental variables. The result showed that in the Heihe River Basin, 820 km^2 of land primarily distributed along the banks of the lower reaches of the river is a suitable habitat for P. euphratica. We built other MaxEnt models based on different environmental variables and another eight models employing different mathematical algorithms based on the same 29 environmental variables to demonstrate the superiority of this method.MaxEnt based on 29 environmental variables performed the best among these models, as it precisely described the essential characteristics of the distribution of P. euphratica forest land. This study verified that MaxEnt can serve as an effective tool for species distribution in extremely arid regions with sufficient and reliable environmental variables. The results suggest that there may be a larger area of P. euphratica forest distribution in the study area and that ecological conservation and management of P.euphratica should prioritize suitable habitat. This research provides valuable insights for the conservation and management of degraded P. euphratica riparian forests. | Yanlong GUO Xin LI Zefang ZHAO Haiyan WEI | 2018 | Science China Earth Sciences2018，61，11： | 12 |
| 2 | Mechanisms of activation and inhibition of Zika virus NS2B-NS3 protease显示文摘 | Xia Chen Kailin Yang Chen Wu Cheng Chen Can Hu Olga Buzovetsky Zefang Wang Xiaoyun Ji Yong Xiong Haitao Yang | 2016 | Cell Research2016，26，11： | 10 |
| 3 | Chemical Mechanical Polishing of Glass Substrate with α-Alumina-g-Polystyrene Sulfonic Acid Composite Abrasive显示文摘Abrasive is the one of key influencing factors during chemical mechanical polishing(CMP) process. Currently, α-Alumina (α-Al2O3) particle, as a kind of abrasive, has been widely used in CMP slurries, but their high hardness and poor dispersion stability often lead to more surface defects. After being polished with composite particles, the surface defects of work pieces decrease obviously. So the composite particles as abrasives in slurry have been paid more attention. In order to reduce defect caused by pure α-Al2O3 abrasive, α-alumina-g-polystyrene sulfonic acid (α-Al2O3-g-PSS) composite abrasive was prepared by surface graft polymerization. The composition, structure and morphology of the product were characterized by Fourier transform infrared spectroscopy(FTIR), X-ray photoelectron spectroscopy(XPS), time-of-flight secondary ion mass spectroscopy(TOF-SIMS), and scanning electron microscopy(SEM), respectively. The results show that polystyrene sulfonic acid grafts onto α-Al2O3, and has well dispersibility. Then, the chemical mechanical polishing performances of the composite abrasive on glass substrate were investigated with a SPEEDFAM-16B-4M CMP machine. Atomic force microscopy(AFM) images indicate that the average roughness of the polished glass substrate surface can be decreased from 0.835 nm for pure α-Al2O3 abrasive to 0.583 nm for prepared α-Al2O3-g-PSS core-shell abrasive. The research provides a new and effect way to improve the surface qualities during CMP. | LEI Hong BU Naijing ZHANG Zefang CHEN Ruling | 2010 | Chinese Journal of Mechanical Engineering2010，23，3： | 9 |
| 4 | Phenolic Composition and Antioxidant Capacities of Chinese Local Pummelo Cultivars' Peel显示文摘China is one of the main production areas of pummelo [Citrus grandis(L.) Osbeck.] in the world and has lots of distinctive local cultivars.Systematic research on the detection of phenolics and antioxidant capacity of peels of mature local cultivars pummelo fruits is rare.In the current study,phenolic composition and content in peels(flavedo and albedo) of ten Chinese local pummelo cultivars were determined using Ultraviolet Spectrophotometer and High Performance Liquid Chromatography(HPLC),and their antioxidant capacities were evaluated using 2,2-diphenyl-1-picrylhydrazyl(DPPH) radicals,ferric reducing antioxidant power(FRAP),and 2,2′-azino-bis(3-ethylbenzthiazoline-6)-sulfonic acid(ABTS)methods in the current study.The research not only provides data that support making full use of the resources of Chinese local pummelo cultivars,but also lays the theoretical basis for research of pummelo fruit nutrition and health values.The results showed that the total phenolic(TP)content in albedo was significantly higher than that in flavedo;on the contrary,the total flavonoid(TF) content was lower in the albedo than in the flavedo.C.grandis ‘Hongxinyou' flavedo contained the highest TP contents,C.grandis ‘Liangpingyou 78-8' flavedo contained the highest TF contents,and C.grandis ‘Guanxi Miyou' albedo contained the highest TP and TF contents.Naringenin,hesperetin,diosmin,and gallic acid were the predominant phenolics in the flavedo,whereas hesperetin,diosmin,rutin,chlorogenic acid,and gallic acid were the primary phenolics in the albedo.The flavedo of C.grandis ‘Yubei Shatianyou' and the albedo of C.grandis ‘Dianjiang Baiyou' had the highest antioxidant potency composite(APC) indexes.Overall,the ‘Yubei Shatianyou' flavedo and the ‘Dianjiang Baiyou' albedo are excellent sources of antioxidants and have the greatest potential value for exploitation and utilization. | Lü Zefang ZHANG Zhao WU Hongmei ZHOU Zhiqin YU Jie | 2016 | Horticultural Plant Journal2016，2，3： | 5 |
| 5 | Prokaryotic expression, purification, and polyclonal antibody production of a hydrophobin from Grifolafrondosa显示文摘Hydrophobins 是小真菌的蛋白质自我装配自发地在 hydrophilichydrophobic 接口和变化他们属于的表面的极的性质。新 hydrophobin 基因 hgfI 最近从可食的蘑菇 Grifola frondosa 被识别。在这份报纸,克隆,表示,纯化,和 HGFI 的 polyclonal 抗体准备被描述。hgfI 基因在 EcoRI 和 NdeI 限制地点被克隆进 pET-28a 表示 plasmid 然后转变了成 Escherichia coli BL21 紧张。SDS 页分析证明那 recombinant HGFI 蛋白质被优化集中和 IPTG 的正式就职时间令人满意地表示。因为它的包括身体在传统的处理方法是不可溶解的,表示 recombinant HGFI 蛋白质被 electroelution 净化。在有 Sephadex G-25 的一个脱盐的过程以后, recombinant HGFI 蛋白质被用来使跟随标准协议的成年兔子免疫。ELISA 和西方的污点分析显示生产抗血清能检测表示在的两 HGFI 蛋白质原核生物(E。coli ) 并且在真核细胞的房间(G。frondosa ) 。而且,抗血清被用来在 G 决定 HGFI 蛋白质的本地化。用一种 immunofluorescence 技术的 frondosa 房间。结果证明那 HGFI 蛋白质在房间墙中是局部性的,特别在 hypha 的开始发育的位置。对 HGFI 的 polyclonal 抗体将便于进一步的生产和 HGFI 蛋白质的功能的学习。 | Zefang Wang Shuren Feng Yujian Huang Mingqiang Qiao Baohua Zhang Haijin Xu | 2010 | Acta Biochimica et Biophysica Sinica2010，42，6： | 5 |
| 6 | A linear varying coefficient ARCH-M model with a latent variable显示文摘Motivated by the psychological factor of time-varying risk-return relationship, this paper studies a linear varying coefficient ARCH-M model with a latent variable. Due to the unobservable property of the latent variable, a corrected likelihood method is employed for parametric estimation. Estimators are proved to be consistent and asymptotically normal under certain regularity conditions. A simple test statistic is also proposed for testing latent variable effect. Simulation results confirm that the proposed estimators and test perform well.The model is further applied to examine whether the risk-return relationship depends on investor's sentiment in American Market and some explainable results are obtained. | SONG ZeFang ZHANG XingFa LI Yuan XIONG Qiang | 2016 | Science China Mathematics2016，59，9： | 4 |
| 7 | Structural basis of Zika virus helicase in recognizing its substrates显示文摘Zika 的最近的爆炸爆发病毒(ZIKV ) 感染在南方和中美洲和加勒比海被报导了。与 ZIKV 感染联系的新生的头小畸型已经引起了国际担心的一种公共健康紧急情况。没有特定的疫苗或药当前是可得到的治疗 ZIKV 感染。ZIKV helicase,在病毒的 RNA 复制起一个枢轴的作用,是为治疗的一个吸引人的目标。我们决定了 ZIKV helicase-ATP-Mn 2+ 和 ZIKV helicase-RNA 的水晶结构。这是到 ATP 的任何 flavivirus helicase 界限的第一结构。有相关 flavivirus helicases 的比较证明了尽管在活跃地点的批评 P 环在不同种类之中有可变符合构造,认出 ATP/Mn 2+ 采用一个相同模式。ZIKV helicase-RNA 的结构表明了在 RNA 绑定之上,马达领域的旋转能引起重要 conformational 变化。惊人地,尽管 ZIKV 和登革热病毒(DENV ) apo-helicases 份额为 RNA 绑定保存了残余,他们在为 RNA 识别的不同单个模式的马达域旋转结果的不同礼貌。它建议 flavivirus helicases 能发展了一台保存引擎为 RNA 放松,而是不同马达领域旋转从 nucleoside triphosphate 把化学能变换成机械精力在可变 RNA 识别的结果适应单个病毒的复制的模式。 | Hongliang Tian Xiaoyun Ji Xiaoyun Yang Zhongxin Zhang zuoku Lu Kailin Yang Cheng Chen Qi Zhao Heng Chi Zhongyu Mu Wei Xie Zefang Wang Huiqiang Lou Haitao Yang Zihe Rao | 2016 | Protein & Cell2016，7，8： | 3 |
| 8 | Issues and rational design of aqueous electrolyte for Zn-ion batteries显示文摘Aqueous Zn-ion batteries(AZIBs)are regarded as a promising alternative to the widely used lithium-ion batteries in large-scale energy storage systems.The researches on the development of novel aqueous electrolyte to improve battery performance have also attracted great interest since the electrolyte is a key com-ponent for Zn2+migration between cathode and anode.Herein,we briefly sum-marized and illuminated the recent development tendency of aqueous electrolyte for AZIBs,then deeply analyzed its existing issues(water decomposition,cathode dissolution,corrosion and passivation,and dendrite growth)and discussed the corresponding optimization strategies(pH regulation,concentrated salt solution,electrolyte composition design,and functional additives).The internal mecha-nisms of these strategies were further revealed and the relationships between issues and solutions were clarified,which could guide the future development of aqueous electrolytes for AZIBs. | Qi Zhang Zefang Yang Huimin Ji Xiaohui Zeng Yougen Tang Dan Sun Haiyan Wang | 2021 | SusMat2021，1，3： | 3 |
| 9 | Coating performance on glutaraldehyde-modified wood显示文摘Scots pine(Pinus sylvestris L.) panels were modified with glutaraldehyde(GA) to various weight percent gains and subsequently coated with several commercial coatings. The drying rate and adhesion of the coatings on the modified wood were measured; the coated/modified woods were exposed outdoors to analyze how the wood modifications influence the coating deterioration. The results showed that GA modification caused an increase in the drying rate of the waterborne coatings, but had no influence on drying of tested solvent-borne coatings. GAmodification did not change the dry adhesion but reduced the wood strength in a pull-off test. Wet adhesion of waterborne coatings was improved, while that of the solvent-borne coatings tended to be somewhat reduced. During 22 months of outdoor weathering, the coated/modified samples exhibited lower moisture content than the coated/unmodified samples, but GA modification didn't contribute a substantially synergistic effect with surface coatings on resistance to weathering. | Zefang Xiao Haiou Chen Carsten Mai Holger Militz Yanjun Xie | 2019 | Journal of Forestry Research2019，30，1： | 2 |
| 10 | Numerical Study on the Leakage and Diffusion Characteristics of Low-Solubility and Low-Volatile Dangerous Chemicals from Ship in Inland Rivers显示文摘Considering the accidents of ships for dangerous chemicals transportation in inland rivers,a numerical method for the simulation of the leakage and diffusion processes of dangerous chemicals in inland rivers is proposed in this paper.Geographic information,such as rivers and buildings in the model,is obtained through Google Earth and structures of rivers and buildings are described by Auto CAD.In addition,the Fluent is adopted to simulate the leakage and diffusion processes of the dangerous chemicals where the standard k-εmodel is used to calculate the turbulent flow.Considering the interaction between chemicals and water,the VOF method is used to describe the leakage,drift and diffusion process of dangerous chemicals groups on the water surface.Taking a section of the Yangtze River as an example,the leakage and diffusion processes from a ship carrying 3,000 tons of low-solubility and low-volatile dangerous chemicals are studied,and the characteristics of leakage and diffusion are analyzed in detail.During the simulation,the area of the maximum group of leaked dangerous chemicals reaches up to about 1800 m2,and the number reaches up to 45.Furthermore,the influence of density,viscosity,water velocity and leakage velocity on the leakage and diffusion processes is investigated in this paper. | Shuifen Zhan Mingchao Wang Min Wang Qianqian Shao Zefang Zhang Wenxin Jiang Xuemin Chen | 2020 | Computer Modeling in Engineering & Sciences2020，，4： | 2 |
| 11 | CHARACTERIZATION AND CAUSATION OF RUNOFF AND SEDIMENT VARIATION IN THE JIALINGJIANG RIVER BASIN显示文摘The Jialingjiang River basin is one of the main sediment contributing areas in the upper reaches of the Changjiang River. Great changes have taken place in the runoff and sediment discharge in recent years. Comparing the data of 1991-2003 with the data of 1954-1990, the annual runoff of the Jialingjiang River basin decreased by 23 %, and the suspended sediment transport decreased by 74% or 105 million tons. The main factors affecting the reduction include a decrease in rainfall, sediment detention of hydraulic structures, soil and water conservation activities, sedimentation and sand dredging in the river channel. Thorough investigation and analysis of the contribution of each factor to the sediment decrease at Beibei Station was determined for the first time. The following are the contributing percentages for each factor: a decrease in runoff accounted for 32.9%; soil and water conservation measures accounted for 16.4%; sediment detention of hydraulic structures accounted for 30.5%; sedimentation, river channel sand dredging, and other factors accounted for 20.2%. These findings are very important for forecasting the trend of inflow sediment discharge variation. | Quanxi XU Songsheng CHEN Ming XIONG Shengwei LI Zefang CHEN | 2007 | International Journal of Sediment Research2007，22，3： | 2 |
| 12 | Cost-efficient and flexible fabrication of rectangular-shaped microlens arrays with controllable aspect ratio and spherical morphology显示文摘 | Yang Hu Qing Yang Feng Chen Hao Bian Zefang Deng Guangqing Du Jinhai Si Feng Yun Xun Hou | 2013 | Applied Surface Science2013，，： | 1 |
| 13 | Effect of abrasive particle concentration on preliminary chemical mechanical polishing of glass substrate显示文摘 | Zefang Zhang Weili Liu Zhitang Song | 2010 | Microelectronic Engineering2010，，11： | 1 |
| 14 | Silane coupling agents used for natural fiber/polymer composites: A review 显示文摘 | XIE Yanjun HILL C A S XIAO Zefang | 2010 | Composites Part A2010，41，： | 1 |
| 15 | Investigation of UDP‐glucuronosyltransferases (UGTs) Inhibitory Properties of Carvacrol显示文摘 | Rui‐HuaDong Zhong‐ZeFang Liang‐LiangZhu Si‐ChengLiang Guang‐BoGe LingYang Ze‐YuanLiu | 2012 | Phytother Res2012，，1： | 1 |
| 16 | Silane couplingagents used for natural fiber/polymer composites : A review显示文摘 | XIE Yanjun HILLB CAS XIAO Zefang | 2010 | Composites: Part A2010，41，： | 1 |
| 17 | Intrinsically zincophobic protective layer for dendrite-free zinc metal anode显示文摘Aqueous zinc anodes have attracted the attention of many researchers owing to their high safety,low cost,and high theoretical specific capacity.However,its practical application is severely limited by the dendrite growth on zinc anode.Herein,we develop an intrinsically zincophobic barium-titanate protective layer with a porous structure to suppress the zinc dendrite formation by homogenizing the ion distribution on the anode surface,increasing the nucleation sites,and limiting the irregular zinc growth.Based on these synergistic effects,the coated zinc anode can exhibit long cycle life(840 h at 0.5 mA/cm^(2) for 0.5 mAh/cm^(2))and low voltage hysteresis(36 mV).This work can provide a feasible direction for the design of intrinsically zincophobic coating materials to uniformize the zinc stripping and plating. | Chunlin Xie Qi Zhang Zefang Yang Huimin Ji Yihu Li Huanhuan Li Liang Fu Dan Huang Yougen Tang Haiyan Wang | 2022 | Chinese Chemical Letters2022，33，5： | 1 |
| 18 | Terahertz Spectroscopy for Accurate Identification of Panax quinquefolium Basing on Nonconjugated 24(R)-Pseudoginsenoside F_(11)显示文摘Panax quinquefolium is a perennial herbaceous plant that contains many beneficial ginsenosides with diverse pharmacological effects.24(R)-pseudoginsenoside F_(11)is specific to P.quinquefolium,a useful biomarker for distinguishing this species from other related plants.However,because of its nonconjugated property and the complexity of existing detection methods,this biomarker cannot be used as the identification standard.We herein present a stable 24(R)-pseudoginsenoside F_(11)fingerprint spectrum in the terahertz band,thereby proving that F_(11)can be detected and quantitatively analyzed via terahertz spectroscopy.We also analyzed the sample by high-performance liquid chromatography-triple quadrupole mass spectrometry.The difference between the normalized data for the two analytical methods was less than 5%.Furthermore,P.quinquefolium from different areas and other substances can be clearly distinguished based on these terahertz spectra with a standard principal component analysis.Our method is a fast,simple,and cost-effective approach for identifying and quantitatively analyzing P.quinquefolium. | Tianyi Kou Ji Ye Jing Wang Yan Peng Zefang Wang Chenjun Shi Xu Wu Xitian Hu Haihong Chen Ling Zhang Xiaohong Chen Yiming Zhu Huiliang Li Songlin Zhuang | 2021 | Plant Phenomics2021，3，1： | 1 |
| 19 | Silane coupling agents used for natural fiber ! polymer composites : A review 显示文摘 | Xie Yanjun Hill C A S Xiao Zefang | 2010 | Composites ( PartA )2010，41，7： | 1 |
| 20 | Silane coupling agents used for natural fiber/polymer composites:A review显示文摘 | Yanjun Xie Callum A S Hill Zefang Xiao | 2010 | Composites : Part A2010，41，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员