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| 1 | Climatic and lake environmental changes in the Serling Co region of Tibet over a variety of timescales显示文摘The Serling Co region is located at the transitional zone of the interaction between the Indian monsoon and the westerlies over the Tibetan Plateau. The Serling Co lake covers a water area of2,389 km2(June 2017) in a 45,530 km2drainage basin. Under the dramatic hydro-meteorological changes on the Tibetan Plateau in recent decades, and complex hydrological compositions of rivers and lakes in the basin, the lake area expanded by 43%, from1,667 km2in 1976, to 2,389 km2in 2017 (1)In 2014 it surpassed Nam Co as the largest lake on the Tibetan Plateau [2], and exerts significant effect on regional environmental conditions. | Liping Zhu Junbo Wang Jianting Ju Ning Ma Yinsheng Zhang Chong Liu Boping Han Linshan Liu Mingda Wang Qingfeng Ma | 2019 | Science Bulletin2019，64，7： | 13 |
| 2 | Development of integrated two-stage thermoelectric generators for large temperature difference显示文摘Multi-stage thermoelectric(TE) modules can withstand a large temperature difference and can be used to obtain a high conversion efficiency. In this study, two-stage PbTe/Bi2Te3 TE modules were developed with an enhanced efficiency through a comprehensive study of device structure design, module fabrication, and performance evaluation. PbTe-based AgPbmSbTem+2(abbreviated as LAST) is a typically high ZT material, while the corresponding TE module was rarely reported so far. How to utilize LAST to fabricate high efficiency TE modules therefore remains a central problem. Finite element simulation indicates that the temperature stability of the two-stage module for LAST is better than that of two-segmented module. Compared to Cu,Ni, and Ni-Fe alloys, Co-Fe alloy is an effective metallization layer for PbTe due to its low contact resistance and thin diffusion layer. By sintering a slice of Cu on TE legs, pure tinfoil can be used as a common welding method for mid-temperature TE modules. A maximum efficiency(ηmax) of 9.5% was achieved in the range of 303 to 923 K in an optimized PbTe/Bi2Te3 based two-stage module, which was almost twice that of a commercial TE module. | PEI Jun LI LiangLiang LIU DaWei ZHANG BoPing XIAO Yu LI JingFeng | 2019 | Science China(Technological Sciences)2019，62，9： | 6 |
| 3 | Monte-Carlo simulation of pinhole collimator of a small field of view gamma camera for small animal imaging显示文摘Needs in scintimammography applications,especially for small animal cardiac imaging,lead to develop a small field of view,high spatial resolution gamma camera with a pinhole collimator.However the ideal pinhole collimator must keep a compromise between spatial resolution and sensitivity.In order to design a pinhole collimator with an optimized sensitivity and spatial resolution,the spatial resolution and the geometric sensitivity response as a function of the source to collimator distance has been obtained by means of Monte-Carlo simulation for a small field of view gamma camera with a pinhole collimator of various-hole diameters.The results show that the camera with pinhole of 1 mm,1.5 mm and 2 mm diameter has respectively spatial resolution of 1.5 mm,2.25 mm and 3 mm and geometric sensitivity of 0.016%,0.022%and 0.036%,while the source to collimator distance is 3 cm.We chose the pinhole collimator with hole diameter size of 1.2 mm for our the gamma camera designed based on the trade-off between sensitivity and resolution. | ZHU Jie MA Wenyan ZHU Yufeng MA Hongguang WU Yuelei HU Huasi ZHANG Boping HUO Yonggang LIU Silu JIAN Bin WANG Zhaomin | 2009 | Nuclear Science and Techniques2009，20，1： | 4 |
| 4 | Multi-phase structure and electrical properties of Bi_(0.5)Li_(0.5)ZrO_3 doping K_(0.48)Na_(0.56)NbO_3 lead-free piezoelectric ceramics显示文摘(1–x)K_(0.48)Na_(0.56)NbO_3–xBi_(0.5)Li_(0.5)ZrO_3(KNN–x BLZ, x = 0–0.06) lead-free piezoelectric ceramics were prepared by the conventional solid-state sintering method, and their phase structures and electric properties as well as T_C were systematically investigated. The orthorhombic–tetragonal(O–T) two phases were detected in all(1–x)K_(0.48)Na_(0.56)NbO_3–xBi_(0.5)Li_(0.5)ZrO_3 ceramics at 0.01 ≤ x ≤ 0.05. Due to the appropriate ratio between O phase and T phase(CO/C T= 45/55), high piezoelectric properties of d 33= 239 pC/N, k_p= 34%, and P_r = 25.23 μC/cm^2 were obtained at x = 0.04. Moreover, a high T_C = 348 ℃ was also achieved in KNN–x BLZ ceramic at x = 0.04. These results indicate that (1–x)K_(0.48)Na_(0.56)NbO_3–xBi_(0.5)Li_(0.5)ZrO_3 system is a promising candidate for high-temperature piezoelectric devices. | Xiaoyan PENG Boping ZHANG Lifeng ZHU Lei ZHAO Ruixiao MA Bo LIU Xiaodong WANG | 2018 | Journal of Advanced Ceramics2018，7，1： | 4 |
| 5 | High-temperature Electric Properties of Polycrystalline La-doped CaMnO_3 Ceramics显示文摘Polycrystalline La-doped CaMnO3 ceramics have been prepared by a solid-state sintering method.Analysis of microstructure and phase composition indicates that the addition of La can prohibit the further growth of grain,and no impurity phase appears.The results revealed that the La doping can lead to a large change of the activation energy(from 0.22 to 0.02 eV),and thus result in a marked increase in electric conductivity of 2-4 orders of magnitude.The power factor can reach about 1.5×10-4 W·m-1·K-2 in a wide temperature range,which potentially make them attractive for n-type high-temperature thermoelectric materials. | Jinle Lan Yuanhua Lin Ao Mei Cewen Nan Yong Liu Boping Zhang Jingfeng Li | 2009 | Journal of Materials Science & Technology2009，25，4： | 3 |
| 6 | A three-dimensional coupled physical-biological model study in the spring of 1993 in the Bohai Sea of China显示文摘A three-dimensional (3-D) coupled physical and biological model was used to investigate the physical processes and their influence on the ecosystem dynamics of the Bohai Sea of China. The physical processes include M2 tide, time-varying wind forcing and river discharge. Wind records from 1 to 31 May in 1993 were selected to force the model. The biological model is based on a simple, nitrate and phosphate limited, lower trophic food web system. The simulated results showed that variation of residual currents forced by M2 tide, river discharge and time-varying wind had great impact on the distribution of phytoplankton biomass in the Laizhou Bay. High phytoplankton biomass appeared in the upwelling region. Numerical experiments based on the barotropic model and baroclinic model with no wind and water discharge were also conducted. Differences in the results by the baroclinic model and the barotropic model were significant: more patches appeared in the baroclinic model comparing with the barotropic model. And in the baroclinic model, the subsurface maximum phytoplankton biomass patches formed in the stratified water. | WANG Hui LIU Guimei SUN Song HAN Boping FU Xiang | 2007 | Acta Oceanologica Sinica2007，26，6： | 3 |
| 7 | Thermoelectric properties of Cu y Bi x Sb 2? x ? y Te 3 alloys fabricated by mechanical alloying and spark plasma sintering显示文摘 | Chen Chen Boping Zhang Dawei Liu Zhenhua Ge | 2012 | Intermetallics2012，，： | 1 |
| 8 | Preface: conservation, management, and restoration of shallow lake ecosystems facing t multiple stressors显示文摘 | LIU Zhengwen HAN Boping GULATI R D | 2013 | Hydrobiologia2013，710，1： | 1 |
| 9 | Active Sites Deterioration of MgClz-Supported Catalyst Induced by the Electron Donor Extraction by Alkylaluminium 显示文摘 | Matsuoka H Liu Boping Nakatani H | 2002 | Polym Int2002，51，9： | 1 |
| 10 | Kinetic Evalu- ation of Various Isospecific Active Sites on MgC12-Supported Ziegler Catalysts显示文摘 | Nishiyama I Liu Boping Matsuoka H | 2003 | MacromolSymp2003，193，： | 1 |
| 11 | Stereospecific Na- ture of Active Sites on TiCI4/MgC12 Ziegler-Natta Catalyst in the Presence of an Internal Electron Donor 显示文摘 | Liu Boping Nitta T Nakatani H | 2003 | Macromol ChemPhys2003，204，3： | 1 |
| 12 | Effects of Elec- tron Donors on Active Sites Distribution of MgC12-Supported Ziegler-Natta Catalysts Investigated by Multiple Active Sites Model 显示文摘 | Wang Qi Murayama N Liu Boping | 2005 | Macromol Chem Phys2005，206，9： | 1 |
| 13 | Variation in the Isospecific Active Sites of Internal Donor-Free MgCl2-Supported Ziegler Catalysts:Effect of External Electron Donors显示文摘 | Matsuoka H Liu Boping Nakatani H | 2001 | MacromolRapidCommun2001，22，5： | 1 |
| 14 | Specific Roles of Al-Alkyl Cocatalyst in the Origin of Isospecificity of Active Sites on Donor-Free TiCl4/MgCl2 Ziegler-Natta Catalyst显示文摘 | Liu Boping Nitta T Nakatani H | 2002 | Macromol Chem Phys2002，203，17： | 1 |
| 15 | Floating-leavedmacrophyte ( Trapa quadrispinosa Roxb) beds have significanteffects on sediment resuspension in Lake Taihu, China 显示文摘 | HUANG Peisheng HAN Boping LIU Zhengwen | 2007 | Hydrobiologia2007，581，1： | 1 |
| 16 | Modeling and simulation of borstar bimodal polyethylene process based on a rigorous PC-SAFT equation of state model显示文摘 | Keran Chen Zhou Tian Na Luo Boping Liu | 2014 | Industrial & Engineering Chemistry Research2014，53，19： | 1 |
| 17 | The nonstructural protein 8 (nsp8) of the SARS coronavirus interacts with its ORF6 accessory protein显示文摘 | Purnima Kumar Vithiagaran Gunalan Boping Liu Vincent T.K. Chow Julian Druce Chris Birch Mike Catton Burtram C. Fielding Yee-Joo Tan Sunil K. Lal | 2007 | Virology2007，，2： | 1 |
| 18 | Effect of mixedgrain size on thermoelectric performance of Bi2Te3 compound显示文摘 | ZHAO Lidong ZHANG Boping LIU Weishu | 2009 | Journal of Applied Physics2009，105，02： | 1 |
| 19 | Short-chain branching distribution oriented model development for borstar bimodal polyethylene process and its correlation with product performance of slow crack growth显示文摘 | Tian Zhou Chen Keran Liu Boping | 2015 | Chemical Engineering Science2015，130，： | 1 |
| 20 | Effects of electron donors on active sites distribution of MgCl2-supported Ziegler- Natta catalysts investigation by multiple active sites model 显示文摘 | Wang Qi Murayama N Liu Boping | 2005 | Macromol Chem Phys2005，206，3： | 1 |
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