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    题名 作者 年代 出处 被引量
1Desertification dynamic and the relative roles of climate change and human activities in desertification in the Heihe River Basin based on NPP显示文摘Relative roles of climate change and human activities in desertification are the hotspot of research on desertification dynamic and its driving mechanism.To overcome the shortcomings of existing studies,this paper selected net primary productivity(NPP) as an indicator to analyze desertification dynamic and its impact factors.In addition,the change trends of actual NPP,potential NPP and HNPP(human appropriation of NPP,the difference between potential NPP and actual NPP) were used to analyze the desertification dynamic and calculate the relative roles of climate change,human activities and a combination of the two factors in desertification.In this study,the Moderate Resolution Imaging Spectroradiometer(MODIS)-Normalised Difference Vegetation Index(NDVI) and meteorological data were utilized to drive the Carnegie-Ames-Stanford Approach(CASA) model to calculate the actual NPP from 2001 to 2010 in the Heihe River Basin.Potential NPP was estimated using the Thornthwaite Memorial model.Results showed that 61% of the whole basin area underwent land degradation,of which 90.5% was caused by human activities,8.6% by climate change,and 0.9% by a combination of the two factors.On the contrary,1.5% of desertification reversion area was caused by human activities and 90.7% by climate change,the rest 7.8% by a combination of the two factors.Moreover,it was demonstrated that 95.9% of the total actual NPP decrease was induced by human activities,while 69.3% of the total actual NPP increase was caused by climate change.The results revealed that climate change dominated desertification reversion,while human activities dominated desertification expansion.Moreover,the relative roles of both climate change and human activities in desertification possessed great spatial heterogeneity.Additionally,ecological protection policies should be enhanced in the Heihe River Basin to prevent desertification expansion under the condition of climate change.Wei ZHOU ZhengGuo SUN JianLong LI ChengCheng GANG ChaoBin ZHANG 2013Journal of Arid Land2013,5,4:18
2Effect of inclusions on the formation of acicular ferrite in Ti-bearing non quenched-and-tempered steel显示文摘Nucleation of acicular ferrite and its influence factors in non quenched-and-tempered steel was studied by using TEM and thermodynamic calculation. The results show that the complex particles with a center made of Ti oxide, Al2O3, and silicate and an outside made of a small quantity of mixture of TiN and MnS are able to act as ferrite nucleation nuclei. The acicular ferrite percent- age changes little with Ti. When the oxygen content was 80 ppm, the volume percentage of acicular ferrite decreased due to an in- crease in allotriomorphic ferrite. The larger the cooling rate and the shorter the incubation time, the finer the titanium oxide and the higher the nucleation ratio of acicular ferrite.Ying Yang Chaobin Lai Fuming Wang Zhanbing Yang Bo Song 2007Journal of University of Science and Technology Beijing2007,14,6:6
3Late Cenozoic Stratigraphy and Paleomagnetic Chronology of the Zanda Basin,Tibet, and Records of the Uplift of the Qinghai-Tibet Plateau显示文摘摘要:特征近来新生代构造 Qinghai 西藏高原的南部的边缘高举可以在 Zanda 盆从 fluvio 湖的阶层被推断, Ngari,西藏。在盆的厚fluvio湖的阶层是老的 5.890.78 妈并且他们的免职为 5.11 妈坚持了的 Magnetostratigraphic 学习表演,即在结束开始在早更新世的结束中新世、结束,在比 1.58 妈没有迟了的区域以第四级的冰川的阶段开始。沉积环境的分析显示高原开始了的南部的 Qinghai 西藏上的 Zanda 盆在 5.89 妈,高举比北 Qinghai 西藏高原迟了。在 Guge 和 QangzMENG Xiangang ZHU Dagang SHAO Zhaogang YANG Chaobin HAN Jianen YU Jia MENG Qingwei LU Rongping 2008Acta Geologica Sinica(English Edition)2008,82,1:6
4The influence of synthetic jet excitation on secondary flow in compressor cascade显示文摘The detailed numerical simulation has been carried out to investigate the effect of synthetic jet excitation on the secondary flow at 5° incidence in a compressor cascade, in which the synthetic jet actuation is equipped on the suction surface. The influence of excitation position, one fixed near the trailing edge and the other fixed a little far from the trailing edge, has also been studied. The results show that unsteady disturbance of desirable synthetic jet effectively enhances the mixing of the fluid inside the separation region, which reduces the vortex intensity and the energy loss, improves the flow status in the cascade, and also suppresses velocity fluctuation near the trailing edge. Additionally, the actuation fixed near the separation region proves to be more effective and exit load distribution is more uniform due to the employment of the synthetic jet.Yanming LIU, Tuo SUN, Chaobin GUAN and Baoguo WANG School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, China Assistant Professor 2010Journal of Thermal Science2010,19,6:5
5China's Wetland Databases Based on Remote Sensing Technology显示文摘Wetland databases can provide the basic data that necessary for the protection and management of wetlands. A large number of wetland databases have been established in the world as well as in China. In this paper, we review China's wetland databases based on remote sensing(RS) technology after introducing the background theory to the application of RS technology in wetland surveys. A key conclusion is that China's wetland databases are far from sufficient in fulfilling protection and management needs. Our recommendations focus on the use of the hyper-spectral imagery, microwave data, multi-temporal images, and automatic classifications in order to improve the accuracy and efficiency of wetland inventory. Further, attention should also be paid to detect major biophysical features of wetlands and build wetland databases in years after the 1980 s in China. Considering that great gap exists between RS experts and wetland experts, further cooperation between wetland scientists and RS scientists are needed to promote the application of RS in the foundation of wetland databases.YAN Fengqin LIU Xingtu CHEN Jing YU Lingxue YANG Chaobin CHANG Liping YANG Jiuchun ZHANG Shuwen 2017Chinese Geographical Science2017,27,3:4
6Upwelling Process of the Western Himalaya Mountains:Height and Velocity Estimation Evidenced by Formation and Evolution of the Zanda Basin,Tibet,China显示文摘把地质的调查, stratigraphic 节测量和室内的全面调查基于地, Zanda 盆在 Himalaya 板中的构造地点被查明,并且 Zanda 盆的形成和进化作为六个阶段在到早更新世的上新世期间被分类:(a) 主要指责裂缝的舞台,(b) 快指责裂缝的舞台,(c) 集中的指责裂缝的舞台,(d) 壅滞舞台,(e) 第二等的指责裂缝的舞台,和(f) 第二等的快指责裂缝的舞台。基于 Zanda 盆的这个六阶段的形成进化理论,当下列五上演,到早更新世的从上新世的西方的 Himalaya 山的 upwelling 过程被分类:(a) 慢 upwelling 舞台(5.44.4 妈) ,(b) 中间速度的 upwelling 舞台(4.43.5 妈) ,(c) 快 upwelling 舞台(3.53.2 妈) ,(d)停止 upwelling 阶段(3.22.7 妈) ,和(e) 快 upwelling 舞台(2.7 妈) 。研究从早上新世(4.7 妈) 在持续时间显示出那到上新世(2.67 妈) 的目的,它持续了 203 万年, Himalaya 山高举了在 0.74 mm/a 的速度的 1500 m;这属于中间速度的 upwelling。在在早更新世的早阶段的 131 万年期间, Himalaya 山在 1.15 mm/a 的速度在另一 1500 m 上面升起了;这是相当快的 upwelling。所有这些数据证明了西方的 Himalaya 山的 upwelling 沿着有 multi-stages,多速度,和非天律不变论的特征的一个复杂过程。ZHU Dagang MENG Xian' gang SHAO Zhaogang YANG Chaobin HAN Jian'en YU Jia MENG Qingwei Lü Rongping 2010Acta Geologica Sinica(English Edition)2010,84,2:3
7Conversion of biomass lignin to high-value polyurethane:A review显示文摘Lignin,as a major by-product of pulp and paper industry,has attracted extensive interest for the preparation of high value-added products,due to the merits of abundant,sustainable,inexpensive,and unique functional groups.This review focuses on the strategies to develop high performance polyurethane(PU)materials from lignin on the basis of main reports,in which lignin was used not only as macromonomer to substitute petroleum-based polyols,but also as blending filler for PU industry.Pre-treatment approaches,especially lignin fractions extracted with various solvents and chemical modifications,e.g.,depolymerization,hydroxyalkylation,dealkylation,and esterication,were widely explored to enable lignin more reactive and available to synthesize PU products.In addition,lignin/PU blends were also prepared to fulfill industrial demand.With adjustment of lignin structure,the PU formulation,and synthesis procedures,various lignin-based PU products with advanced properties and a higher bio-substitution ratio have been developed,demonstrating the potential industrial application of lignin for high value-added sustainable materials.Hui Li Yuan Liang Pengcheng Li Chaobin He 2020Journal of Bioresources and Bioproducts2020,5,3:2
8Recent Advances in Polyaniline-Based Thermoelectric Composites显示文摘Polyaniline(PANI)-based thermoelectric(TE)materials have attracted considerable attention for flexible electronic energy harvesting devices because of properties such assolution processibility,excellent environmental stability,and low cost.However,the typical opposite dependence between electrical conductivity and Seebeck coefficient impedes their development,and tremendous efforts have been devoted to increasing their TE efficiency.Siqi Liu Hui Li Pengcheng Li Yalong Liu Chaobin He 2021CCS Chemistry2021,3,10:2
9Correlation between Different Morus alba L. Leaf Nodes and the Change in Leaf Size or Mass显示文摘This paper aimed to explore the correlation between Morus alba L. leaf node and its size or mass change and provide a theoretical basis for the development of scientific Morus alba L. cultivation technology. During 2016-2017,the correlation between Morus alba L. leaf node and its size or mass change was investigated and researched. Results showed that through the correlation coefficient analysis,there was a weakly positive correlation between the leaf node and some indicators such as( leaf length ÷ leaf width) and petiole length,there was a weakly negative correlation between the leaf node and some indicators such as leaf width,( leaf length + leaf width),( leaf length × leaf width) and leaf mass,and there was a weakly negative correlation between the leaf node and the other indicators; there was a highly positive correlation between the leaf mass and some indicators such as Morus alba L. leaf length,leaf width,( leaf length + leaf width) and( leaf length × leaf width),there was a significantly positive correlation between the leaf mass and some indicators such as petiole transverse diameter in width and petiole mass,and there was a weakly positive correlation between the leaf mass and some indicators such as petiole transverse diameter in thickness. In terms of significant level of difference,it was found that there was no significant difference in the correlation coefficients between the leaf nodes on the Morus alba L. shoots and some indicators such as leaf length,leaf width,( leaf length + leaf width),( leaf length × leaf width) and leaf mass; there was an extremely significant difference in the correlation coefficients between the leaf mass and some indicators such as Morus alba L. leaf length,leaf width,( leaf length + leaf width),( leaf length × leaf width),petiole transverse diameter in width and petiole mass; there was no significant difference in the correlation coefficients between the leaf mass and the other indicators. The regression analysis was performed on the leaf node and leaf length,leaf width,( leaf length + leaf width),( leaf length × leaf width),( leaf length ÷ leaf width),petiole length,petiole diameter in width,petiole diameter in thickness,petiole mass and leaf mass. Significance F values were0. 4864,0. 1995,0. 2888,0. 3004,0. 2350,0. 2407,0. 8925,0. 5227,0. 7022 and 0. 2000,respectively,that is,there was an extremely significant difference between Morus alba L. leaf node and petiole diameter in width,there was a significant difference between Morus alba L.leaf node and petiole mass,and there was no significant difference between Morus alba L. leaf node and the other indicators. The comparative analysis of quadratic curve regression equation and linear regression equation was performed on some indicators such as leaf length,and it was found that the R value between the leaf node and petiole diameter in width was in line with the logarithmic curve regression equation,and the other R values of quadratic curve regression equation was larger than the other R values of linear regression equation,indicating that different Morus alba L. leaf nodes,leaf length,leaf mass and other indicators were in line with the quadratic curve regression equation. It was concluded that by investigating the leaf node on the Morus alba L. shoots and regression equation,we could predict the leaf size,leaf mass and other indicators,and we could take the leaf node on the Morus alba L. shoots as a main factor affecting the Morus alba L. leaf size and mass.Fanglun JIN Shengte YANG Chaobin LUO Ming LI Shiye HU Fawei ZHANG Xian YUE Wenxue WANG 2017Asian Agricultural Research2017,9,11:2
10Direct ink writing of programmable functional silicone-based composites for 4D printing applications显示文摘Polydimethylsiloxane(PDMS)has been widely used in flexible electronics,soft robotics,and bioelectronics.However,the fabrication of PDMS-based devices has mostly relied on conventional approaches,such as casting and molding,thereby limiting their potential.Here we fabricate PDMS-based composites with programmable microstructures by direct ink writing and realize their practical functionalities of four-dimensional(4D)printing.The mechanical,thermomechanical and magnetic properties of the three-dimensional-printed composites can be well tailored by using carbon,metal,or ceramic functional fillers.By taking advantage of the printable,flexible,and magnetic PDMS composites,we demonstrate new practical functionalities of 4D printing by designing programmable architectures,including magnetic-field-driven battery cases and patchworks,as well as arbitrary morphing ceramic structures.In particular,4D-printed batteries are constructed by PDMS-based battery cases for the first time,which can be actuated via external magnetic field.This study broadens the paradigm of 4D printing for prospective applications,such as implant batteries,biomimetic engineering,and customized biomedical devices.Zhiyang Lyu J.ustin Koh Gwendolyn J.H.Lim Danwei Zhang Ting Xiong Lei Zhang Siqi Liu Junfei Duan Jun Ding John Wang Jinlan Wang Yunfei Chen Chaobin He 2022Interdisciplinary Materials2022,1,4:2
11Distribution of sialic acid receptors and experimental infections with different subtypes of influenza A viruses in Qinghai-Tibet plateau wild pika显示文摘Yan Li Haixia Xiao Chaobin Huang 2015Virology Journal2015,12,63:1
12Hot Cloud Computing Platform Recommendations显示文摘BU Wenjun ZOU Chaobin YU Jialin 2011Silicon Valley2011,5,:1
13Synthesis and Self-Assembly of pH-Responsire Amphiphilic Poly (dimethyl-aminoethyl-methacrylate)-blockPoly (pentafluorostyrene) Block Copolymer in Aqueous Solution显示文摘Tan BH Chakravarthy S.Gudipati Hazrat Hussain Chaobin He Ye Liu and Thomas PD 0,,:1
14Polyimide/POSS nanocomposites:Interfacial interaction,thermal properties and mechanical properties显示文摘Huang Junchao He Chaobin Xiao Yang 2003Polym2003,44,:1
15Octa (maleimido phenyl) copolymers显示文摘KRISHNAN G S P CHAOBIN HE 2005J Poly Sci: Part A: Polym Chem2005,43,:1
16In-tube cooling heat transfer of supercritical carbon dioxide显示文摘Chaobin Dang Eiji Hihara 2004International Journal of Refrigeration2004,27,:1
17pH-responsive amphiphilic hybrid random-type copolymers of poly(acrylic acid) and poly(acrylate-POSS): synthesis by ATRP and self-assembly in aqueous solution显示文摘Zhuo Wang Beng H. Tan Hazrat Hussain Chaobin He 2013Colloid and Polymer Science2013,,8:1
18In-tube cooling heat transfer of supercritical carbon dioxide. Part 1. Experimental measurement显示文摘Chaobin Dang Eiji Hihara 2004International Journal of Refrigeration2004,,7:1
19Effect of lubricating oil on the flow and heat-transfer characteristics of supercritical carbon di- oxide 显示文摘Dang Chaobin Iino K Fukuoka K 2012International Journal of Refrigeration2012,35,:1
20Hyperbranched blue-light-emitting alternating copolymers of tetrabromoarylmethane/silane and 9,9-dihexylfluorene-2,7-diboronic acid显示文摘Liu Xueming He Chaobin Hao Xiaotao 2004Macromolecules2004,37,16:1
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