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| 1 | Precipitation changes in the mid-latitudes of the Chinese mainland during 1960–2014显示文摘Based on daily precipitation data from 163 meteorological stations, this study investigated precipitation changes in the mid-latitudes of the Chinese mainland(MCM) during 1960–2014 using the climatic trend coefficient, least-squared regression analysis, and a non-parametric Mann-Kendall test.According to the effects of the East Asian summer monsoon on the MCM and the climatic trend coefficient of annual precipitation during 1960–2014, we divided the MCM into the western MCM and eastern MCM. The western MCM was further divided into the western MCM1 and western MCM2 in terms of the effects of the East Asian summer monsoon. The main results were as follows:(1) During the last four decades of the 20^(th) century, the area-averaged annual precipitation presented a significant increasing trend in the western MCM, but there was a slight decreasing trend in the eastern MCM, where a seesaw pattern was apparent. However, in the 21^(st) century, the area-averaged annual precipitation displayed a significant increasing trend in both the western and eastern MCM.(2) The trend in area-averaged seasonal precipitation during 1960–2014 in the western MCM was consistent with that in the eastern MCM in winter and spring. However, the trend in area-averaged summer precipitation during1960–2014 displayed a seesaw pattern between the western and eastern MCM.(3) On an annual basis,both the trend in rainstorms and heavy rain displayed a seesaw pattern between the western and eastern MCM.(4) The precipitation intensity in rainstorms, heavy rain, and moderate rain made a greater contribution to changes in the total precipitation than precipitation frequency. The results of this study will improve our understanding of the trends and differences in precipitation changes in different areas of the MCM. This is not only useful for the management and mitigation of flood disasters, but is also beneficial to the protection of water resources across the MCM. | HU Yuling WANG Shigong SONG Xuping WANG Jiaxin | 2017 | Journal of Arid Land2017,9,6: | 4 |
| 2 | Didodecyldimethylammonium bromide lipid bilayer-protected gold nanoparticles:synthesis,characterization,and self-assembly显示文摘 | ZHANG Lixue SUN Xuping SONG Yonghai | 2006 | Langmuir2006,22,6: | 1 |
| 3 | Does the CONSORT checklist for abstracts improve the quality of reports of random- ized controlled trials on clinical pathways? 显示文摘 | Qi Cui Jinhui Tian Xuping Song | 2014 | Journal of Eval- uation in Clinical Practice2014,20,: | 1 |
| 4 | Zircons from rodingite in the Western Tianshan serpentinite complex:Mineral chemistry and U-Pb ages define nature and timing of rodingitization显示文摘 | Li Xuping Zhang Lifei Simon AW Song Biao Liu Xiaoming | | 0,,: | 1 |
| 5 | Triassic collision of western Tianshan orogenic belt,China:evidences from SHRIMP U-Pb dating of zircon from HP/UHP eclogitic rocks显示文摘 | Zhang Lifei Ai Yongliang Li Xuping Rubatto D Song Biao Williams S Song Shuguang Ellis D Liou J G | | 0,,1: | 1 |
| 6 | Multi-channel broadband Brillouin slow light with multiple longitudinal mode pump显示文摘 | Zhang Xuping Wang Rugang Song Yuejiang | 2012 | IEEE/OSA Journal of Lightwave Technology2012,30,1: | 1 |
| 7 | An FE-Inexact Heterogeneous ADMM for Elliptic Optimal Control Problems with L^1-Control Cost显示文摘Elliptic PDE-constrained optimal control problems with L^1-control cost(L^1-EOCP) are considered. To solve L^1-EOCP, the primal-dual active set(PDAS) method, which is a special semismooth Newton(SSN) method, used to be a priority. However, in general solving Newton equations is expensive. Motivated by the success of alternating direction method of multipliers(ADMM), we consider extending the ADMM to L^1-EOCP. To discretize L^1-EOCP, the piecewise linear finite element(FE) is considered. However, different from the finite dimensional L^1-norm, the discretized L^1-norm does not have a decoupled form. To overcome this difficulty, an effective approach is utilizing nodal quadrature formulas to approximately discretize the L^1-norm and L^2-norm. It is proved that these approximation steps will not change the order of error estimates. To solve the discretized problem,an inexact heterogeneous ADMM(ihADMM) is proposed. Different from the classical ADMM, the ihADMM adopts two different weighted inner products to define the augmented Lagrangian function in two subproblems, respectively. Benefiting from such different weighted techniques, two subproblems of ihADMM can be efficiently implemented. Furthermore, theoretical results on the global convergence as well as the iteration complexity results o(1/k) for ihADMM are given. In order to obtain more accurate solution, a two-phase strategy is also presented, in which the primal-dual active set(PDAS)method is used as a postprocessor of the ihADMM. Numerical results not only confirm error estimates,but also show that the ihADMM and the two-phase strategy are highly efficient. | SONG Xiaoliang YU Bo WANG Yiyang ZHANG Xuping | 2018 | Journal of Systems Science & Complexity2018,31,6: | 1 |
| 8 | Triassic collision of western Tianshan orogenic belt, China: Evidence from SHRIMP U–Pb dating of zircon from HP/UHP eclogitic rocks显示文摘 | Lifei Zhang Yongliang Ai Xuping Li Daniela Rubatto Biao Song Samantha Williams Shuguang Song David Ellis J.G. Liou | 2006 | LITHOS2006,,1: | 1 |
| 9 | Chromium trioxide modified spiro-OMeTAD for highly efficient and stable planar perovskite solar cells显示文摘Hole transporting materials(HTMs)play an unparalleled role in heightening the stability and photovoltaic performance of perovskite solar cells(PSCs).The organic small molecule spiro-OMeTAD is frequently utilized for HTM in PSCs.However,the raw spiro-OMeTAD without dopant would be harmful to the development of highly efficient PSCs,due to its unsatisfied hole mobility and conductivity.Therefore,we introduce an inorganic dopant(chromium trioxide,CrO_(3))into the lithium-salt doped spiro-OMeTAD.Because of the exclamatory oxidizability of CrO_(3),it can accelerate the oxidation of spiro-OMeTAD and thereby enhancing the hole mobility of HTM.The introduction of CrO_(3) not only substantially decreases the density of defects,but also adjusts spiro-OMeTAD energy band,and thus effectively suppresses the hysteresis and improving stability of PSCs.In the end,we obtained a power conversion efficiency(PCE)as high as 22.6%after doping CrO_(3) in spiro-OMeTAD.The facile,low cost and outstanding photovoltaic performance render CrO_(3) an excellent dopant for HTMs in PSCs. | Xiaobing Wang Jihuai Wu Yuqian Yang Guodong Li Zeyu Song Xuping Liu Weihai Sun Zhang Lan Peng Gao | 2021 | Journal of Energy Chemistry2021,30,10: | 1 |
| 10 | Development of a Rapid Test Bar for Quantitative Detection of Chloride Ions in Fresh Concrete显示文摘Due to the shortage of natural raw materials,many practitioners proposed to make concrete from desalinated sea sand.To reduce the risk of abuse of uncleaned sea sand,we proposed a new rapid test bar to detect chloride ions in fresh concrete quantitatively.The test bars were prepared by mixing silver chromate with cotton fiber.By virtue of the high liquid-absorbent capacity of cotton fiber,the chloride-contained liquid in fresh concrete will rapidly enter into the test bar and react with the silver chromate to finally show a certain coloring height,which corresponds to the actual chloride content.In order to optimize the preparation process,the color rendering,testing time and stability of test rods under different mixing ratios and conditions were investigated.The relationship between color height and chloride content was established,and an auxiliary card is prepared for user-friendly calculation of chloride content.The results showed that the best performance of the test bar was obtained under the following conditions:mass concentration of silver chromate 5.0g/L,soaking time 1 min,drying temperature 50℃and content of discolored silica gel 0.5g/root. | Yingjie ZHANG Shujie WEI Wen PAN Xuping JI Zijian SONG | 2021 | Research and Application of Materials Science2021,3,1: | 0 |
| 11 | Trace Elements of Multi-stage Minerals and Titanite U-Pb Dating for the Gneisses from Liansan Island,Sulu UHPM Belt显示文摘Gneisses with anatectic characteristics from the Liansan island in the Sulu UHPM(ultra-high pressure metamorphic)belt were studied for petrography,titanite U-Pb dating and mineral geochemistry.Three origins of garnets are distinguished:metamorphic garnet,peritectic garnet and anatectic garnet,which are formed in the stages of peak metamorphism,retrograde anatexis and melt crystallization,respectively.The euhedral titanite has a high content of REE and high Th/U ratios,which is interpreted as indicating that it was newly-formed from an anatectic melt.The LA-ICP-MS titanite U-Pb dating yields 214-217 Ma ages for the titanite(melt)crystallization.The distribution of trace elements varies in response to the different host minerals at different stages.At the peak metamorphic stage,Y and HREE are mainly hosted by garnet,Ba and Rb by phengite,Sr,Nb,Ta,Pb,Th,U and LREE by allanite and Y,U and HREE by zircon.During partial melting,Y,Pb,Th,U and REE are released into the melt,which causes a dramatic decline of these element contents in the retrograde minerals.Finally,titanite absorbs most of the Nb,U,LREE and HREE from the melt.Therefore,the different stages of metamorphism have different mineral assemblages,which host different trace elements. | SONG Lihao CAO Yuting XIE Tianhe CHEN Yuyao GAO Yuan WANG Songjie LI Xuping | 2023 | Acta Geologica Sinica(English Edition)2023,97,6: | 0 |