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| 1 | Variations of shear wave splitting in the 2008 Wenchuan earthquake region显示文摘Through the analysis of S-wave particle motion of local events in the shear wave window, the polariza-tion directions of the faster shear wave and the delay times between the faster and the slower shear waves were derived from seismic recordings at the stations near the fault zones. The shear wave split-ting results of seven stations in the area of Longmenshan fault zone reveal spatial variation of the po-larization directions of the fast shear wave. The directions at stations in the southeastern side of the Longmenshan fault zone (in the Sichuan Basin area) are in the NE direction, whereas the direction at station PWU (in the Plateau), which is in the northwestern side of the faults, is in the EW direction. Systematic changes of the time delays between two split shear waves were also observed. At station L5501 in the southern end of the aftershock zone, the delay times of the slower shear wave decrease systematically after the main shock. After the main shock, the delay times at station PWU were longer than those before the earthquake. Seismic shear wave splitting is caused mostly by stress-aligned microcracks in the rock below the stations. The results demonstrate changes of local stress field dur-ing the main-shock and the aftershocks. The stress in the southern part of Wenchuan seismogenic zone was released by the main-shock and the aftershocks. The crustal stresses were transferred to the northeastern part of the zone, resulting in stress increase at station PWU after the main-shock. | DING ZhiFeng WU Yan WANG Hui ZHOU XiaoFeng LI GuiYin | 2008 | Science China Earth Sciences2008,51,12: | 18 |
| 2 | Tomographic imaging of P wave velocity structure beneath the region around Beijing显示文摘The three-dimension crustal and upper mantle structures in the region around Beijing were studied by seismic tomography. We used the P wave arrival times from local and teleseismic events. These events were recorded by 250 stations of the North China Seismic Array and 108 stations of the Beijing Telemetry Seismic Network. 118 869 P wave arrivals from 10 285 local events and 12 189 P wave arrivals from 107 teleseismic events were used in the inversion. We obtained the 3-D P wave velocity structure of the crust and upper mantle with the horizontal resolution of 0.3° in the studied region. The tomographic imaging shows the remarkably heterogeneous velocity variation. The velocity anomalies are in well agreement with the geological structure in the shallow crust. The different relationships between seismic activities and velocity anomalies may imply the different seismogenic structure and mechanism. Beneath the Moho under Taihangshan mountain and Yanshan mountain,we found the high velocity anomalies deep to 120 km and 200 km,respectively. The deep high velocity zone may be explained by the existence of the mountain root under Yanshan mountain. The high velocity anomalies in the upper mantle of North China basin may be the relics of the de-rooting from the former craton mantle lithosphere. | Zhifeng Ding Xiaofeng Zhou Yan Wu Guiyin Li Hong Zhang | 2009 | Earthquake Science2009,22,4: | 10 |
| 3 | Absorption mechanism of carbon-nanotube paper- titanium dioxide as a multifunctional barrier material for lithium-sulfur batteries显示文摘Lithium-sulfur batteries attract much interest as energy storage devices for their low cost, high specific capacity, and energy density. However, the insulating properties of sulfur and high solubility of lithium polysulfides decrease the utilization of active materials by the battery resulting in poor cycling performance. Herein, we design a multifunctional carbon-nanotube paper/titanium-dioxide barrier which effectively reduces active material loss and suppresses the diffusion of lithium polysulfides to the anode, thereby improving the cycling stability of lithium-sulfur batteries. Using this barrier, an activated carbon/sulfur cathode with 70% sulfur content delivers stable cycling performance and high Coulombic efficiency (-99%) over 250 cycles at a current rate of 0.5 C. The improved electrochemical performance is attributed to the synergistic effects of the carbon nanotube paper and titanium dioxide, involving the physical barrier, chemical adsorption from the binding formation of Ti-S and S-O, and other interactions unique to the titanium dioxide and sulfur species. | Guiyin Xu Jiaren Yuan Xinyong Tao Bing Ding Hui Dou Xiaohong Yan Yang xiao Xiaogang Zhang | 2015 | Nano Research2015,8,9: | 7 |
| 4 | cDNA-AFLP profiling for the fiber development stage of secondary cell wall synthesis and transcriptome mapping in cotton显示文摘Cotton fiber strength is mainly determined during the secondary cell wall deposition stage when cel- lulose is synthesized. We obtained cDNA of 20―25 d post anthesis (DPA) fiber from 109 F2 progeny and developed a cotton fiber transcriptome profiling via cDNA-AFLP technology using 37 different primer combinations. The F2 population originated from an interspecific cross between Gossypium hirsutum and Gossypium barbadense. One hundred and thirty-eight absence/presence polymorphic transcript- derived fragments (TDFs), with sizes ranging from 100 bp to 722 bp, were screened. Of these, 75 (53.62%) were polymorphic between the parents of the F2 population. Sequencing the 75 transcripts revealed that 37 of them had been reported to be cotton fiber ESTs. Nine of 75 transcript sequences were homologous to 7 cloned cotton fiber genes, encoding cysteine proteinase, vacuolar H+-pyro- phosphatase, vacuolar H+-ATPase, catalytic subunit, arabinogalactan protein, putative receptor protein kinase PERK1, GIA/RGA-like gibberellin response modulator and cellulose synthase. Some other transcripts may represent new gene fragments in cotton fiber development. Surprisingly, 46 of the 75 transcripts were mapped to a single linkage group. The transcriptome groups and the sequenced TDFs could serve as important resources in the functional genomic research of cotton fiber development. | PAN YuXin MA Jun ZHANG GuiYin HAN GaiYing WANG XingFent MA ZhiYingt | 2007 | Chinese Science Bulletin2007,52,17: | 5 |
| 5 | Preparation and application of iron oxide/persimmon tannin/graphene oxide nanocomposites for efficient adsorption of erbium from aqueous solution显示文摘Rare earth elements(REEs)are used for the developme nt of new energy materials owing to their intrinsic physicochemical property.However,excess REEs in water threaten the safety of animals,plants and humans.An efficient way to separate REEs from the water is therefore needed.In this study,a biosorbent consisting of iron oxide(Fe3 O4),persimmon tannin(PT),and graphene oxide(GO)as Fe3 O4/PT/GO was prepared,and the adsorption of trivalent erbium(Er3+)ions from aqueous solution was investigated.The adsorption process for Er3+ions conforms to pseudo-second order kinetic and the Langmuir isotherm model behavior.Thermodynamic studies indicate that the adsorption process is spontaneous and endothermic.Scanning electron microscopy(SEM),X-ray photoelectron spectroscopy(XPS),X-ray diffraction(XRD),thermogravimetric analysis(TGA).Fourier-transform infrared(FT-IR)spectroscopy;Brunauer-Emmett-Teller(BET)analysis,and vibrating sample magnetometer(VSM)were used to assess the adsorption mechanism of Er3+ions onto the Fe3 O4/PT/GO biosorbent.A combination of electrostatic interactions,redox reactivity and chelation are responsible for adsorption of Er3+ions on the Fe3 O4/PT/GO biosorbent,The magnetic Fe3 O4/PT/GO biosorbent can be easily separated under the magnetic field for effective recycle of Er3+ions from aqueous solution.Therefore,this new biomass composite holds great promise for wastewater treatment. | Lin Gao Zhongmin Wang Chaoke Qin Zhenming Chen Mingmin Gao Na He Xi Qian Zhide Zhou Guiyin Li | 2020 | Journal of Rare Earths2020,38,12: | 3 |
| 6 | Kinetics of adsorption of Zn(II) ion on chitosan derivatives显示文摘 | Ding Ping Huang Kelong Li Guiyin | 2006 | International Journal of Biological Macromolecules2006,39,45: | 1 |
| 7 | Preparation and properties of magnetic Fe304-chitosan nanoparticles显示文摘 | LI Guiyin JIANG Yufen HUANG Kelong | 2008 | Journal of Alloys and Compounds2008,466,: | 1 |
| 8 | Preparation and Characterization of Nano-Encapsulated n-Tetradecane as Phase Change Material for Thermal Energy Storage显示文摘 | FANG Guiyin LI Hui YANG Fan | 2009 | Chemical Engineering Journal2009,153,: | 1 |
| 9 | Experimental investigation on the photovoltaic-thermal solar heat pump air-conditioning system on water-heating mode显示文摘 | Guiyin Fang Hainan Hu Xu Liu | | 0,,: | 1 |
| 10 | Mining cotton fiber strength candidate genes based on transcriptome mapping显示文摘Cotton fiber strength is mainly determined during the secondary cell wall (SCW) thickening stage. In 24―25 days post anthesis (DPA) of SCW thickening stage, cDNA-amplified fragment length polymorphism (AFLP) was carried out to construct fiber transcriptome groups. Based on these groups, cotton fiber strength candidate genes were detected by composite interval mapping (CIM) through quantitative trait locus (QTL) scanning. The mapping population was the interspecific backcross BC1 of Gossypium hirsutum × G. barbadense. One hundred and fifteen BC1 plants were used for group construction with 102 qualified absence/presence polymorphic transcript-derived fragments (TDFs) from G. barbadense, and 78 TDFs were assigned into eight transcriptome groups that gave a total length of 462.63 centimorgans (cM). Two significant QTLs, FS1 and FS2, were detected and explained 16.08% and 15.87% of fiber strength variance, respectively. Of the six TDFs co-segregating with FS1 and FS2, except one encoding an unknown protein, five targeted putative phosphatidylinositol kinase, trehalose-6 phosphate synthase, MADS transcription factor, cellulose synthase-like protein and phenylalanine ammonia lyase, respectively. These functional genes were involved in plant cell wall morphogenesis or cellulose synthesis metabolism processes, and were considered as the candidate genes controlling cotton fiber strength. | LIU HengWei WANG XingFen PAN YuXin SHI RuiFeng ZHANG GuiYin MA ZhiYing | 2009 | Chinese Science Bulletin2009,54,24: | 1 |
| 11 | Preparation andcharacterization of flame retardant n-hexadecane/silicondioxide composites as thermal energy storage materials显示文摘 | Fang Guiyin Li Hui Chen Zhi Liu Xu | 2010 | Journal of Hazardous Materials2010,181,13: | 1 |
| 12 | Output feedback stabilization of networked systems subject to actuator saturation and packet dropout 显示文摘 | ZHOU Rujuan ZHANG Xiaomei SHI Guiyin | 2012 | Lecture Notes in ElectricalEngineering2012,136,: | 1 |
| 13 | Preparation and properties of magnetic Fe3O4-chitosan nanoparticles 显示文摘 | Li Guiyin Jiang Yuren Huang Kelong | 2008 | Journal of Alloys and Compounds2008,466,12: | 1 |
| 14 | Synthesis and properties of microencapsulated paraffin composites with SiO2 shell as thermal energy storage materials显示文摘 | FANG Guiyin CHEN Zhi LI Hui | 2010 | Chemical Engineering Journal2010,,163: | 1 |
| 15 | Preparation and characteristics of microencapsulated stearic acid as composite thermal energy storage material in buildings显示文摘 | Zhi Chen Lei Cao Feng Shan Guiyin Fang | 2013 | Energy & Buildings2013,,: | 1 |
| 16 | Synthesis of shape-stabilized paraffin/silicon dioxide composites as phase change material for thermal energy storage显示文摘 | Hui Li Guiyin Fang Xu Liu | 2010 | Journal of Materials Science2010,,6: | 1 |
| 17 | Synthesis and thermal properties of shape-stabilized lauric acid/activated carbon composites as phase change materials for thermal energy storage显示文摘 | Zhi Chen Feng Shan Lei Cao Guiyin Fang | 2012 | Solar Energy Materials and Solar Cells2012,,: | 1 |
| 18 | Preparation and properties of lauric acid/silicon dioxide composites as form-stable phase change materials for thermal energy storage显示文摘 | Guiyin Fang Hui Li Xu Liu | 2010 | Materials Chemistry and Physics2010,,2: | 1 |
| 19 | Preparation and properties of lauric acid/silicon dioxide composites as form-stable phase change materials for thermal energy storage 显示文摘 | Fang Guiyin Li Hui Liu Xu | 2010 | Materials Chemistry and Physics2010,122,23: | 1 |
| 20 | Preparation and characteristics of n-nonadecane/cement composites as thermal energy storage materials in buildings 显示文摘 | Li Hui Liu Xu Fang Guiyin | 2010 | Energy and Buildings2010,42,10: | 1 |