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36篇 您的检索式:作者名="Shenghai Li"
    题名 作者 年代 出处 被引量
1Effects of biochar on water movement characteristics in sandy soil under drip irrigation显示文摘Biochar addition can improve the physical and hydraulic characteristics of sandy soil.This study investigated the effects of biochar on water holding capacity and water movement in sandy soil under drip irrigation.By indoor simulation experiments,the effects of biochar application at five levels(0%,1%,2%,4%and 6%)on the soil water retention curve,infiltration characteristics of drip irrigation and water distribution were tested and analyzed.The results showed that biochar addition rate was positively correlated with water holding capacity of sandy soil and soil available water.Within the same infiltration time,with an increasing amount of added biochar,the diffusion distance of the horizontal wetting front(HWF)tended to decrease,while the infiltration distance of vertical wetting front(VWF)initially declined and then rose.The features of wetted bodies changed from'broad-shallow'to'narrow-deep'type.The relationship between the transport distances of HWF and VWF and the infiltration time was described by a power function.At the same distance from the point source,the larger the amount of added biochar,the higher the soil water content.Biochar had a great influence on the water content of the layer with biochar(0–200 mm)and had some effects at 200–250 mm without biochar;but it had less influence on the soil water content deeper than 250 mm.For the application rate of biochar of 4%,most water was retained within 0–250 mm soil layer.However,when biochar application amount was high(6%),it would be helpful for water infiltration.During the improvement of sandy soil,biochar application rate of 4%in the plow layer had the best effect.PU Shenghai LI Guangyong TANG Guangmu ZHANG Yunshu XU Wanli LIPan FENG Guangping DING Feng 2019Journal of Arid Land2019,11,5:6
2Sediment pollution characteristics and in situ control in a deep drinking water reservoir显示文摘Sediment pollution characteristics, in situ sediment release potential, and in situ inhibition of sediment release were investigated in a drinking water reservoir. Results showed that organic carbon(OC), total nitrogen(TN), and total phosphorus(TP) in sediments increased from the reservoir mouth to the main reservoir. Fraction analysis indicated that nitrogen in ion exchangeable form and Na OH-extractable P(Fe/Al-P) accounted for 43% and 26% of TN and TP in sediments of the main reservoir. The Risk Assessment Code for metal elements showed that Fe and Mn posed high to very high risk. The results of the in situ reactor experiment in the main reservoir showed the same trends as those observed in the natural state of the reservoir in 2011 and 2012; the maximum concentrations of total OC, TN, TP, Fe,and Mn reached 4.42 mg/L, 3.33 mg/L, 0.22 mg/L, 2.56 mg/L, and 0.61 mg/L, respectively. An in situ sediment release inhibition technology, the water-lifting aerator, was utilized in the reservoir. The results of operating the water-lifting aerator indicated that sediment release was successfully inhibited and that OC, TN, TP, Fe, and Mn in surface sediment could be reduced by 13.25%, 15.23%, 14.10%, 5.32%, and 3.94%, respectively.Zizhen Zhou Tinglin Huang Yang Li Weixing Ma Shilei Zhou Shenghai Long 2017Journal of Environmental Sciences2017,29,2:6
3The preventive effect of vaccine prophylaxis on severe respiratory syncytial virus infection:A meta-analysis显示文摘Respiratory syncytial virus(RSV) is the key underlying cause of acute lower respiratory tract infection in infants; however, no licensed vaccine against RSV infection is currently available. This study was undertaken to assess the preventive effect of vaccine on RSV infection. In this metaanalysis, 1,792 published randomized clinical trials of RSV vaccines from Jan 1973 to Sep 2015 were examined. Among thirteen studies that met the inclusion criteria, eleven studies estimated the impact of RSV vaccines and four studies estimated the effect of adjuvants. The odds ratios(ORs) were 0.31(95% CI, 0.15–0.67) and 0.62(95% CI, 0.29–1.34), respectively. We found that RSV subunit vaccines can significantly reduce the incidence of RSV infection and that whether vaccination with adjuvant therapy was an effective strategy still remained to be studied. This analysis of the preventive effect of vaccines on RSV infection has direct applications for the prevention of RSV infections.Tongna Zhu Chuanlong Zhang Li Yu Jingxian Chen Huan Qiu Weiwei Lyu Shenghai Huang 2015Virologica Sinica2015,30,5:2
4Seasonal transition characteristics of the westerly jet: Study based on field observations at an altitude of 6900 m on the Mt. Xixiabangma Dasuopu glacier显示文摘To better understand ultra-high-altitude climate characteristics and their changes, an automatic weather station was installed on August 4, 2005 on the Mt. Xixiabangma Dasuopu glacier (28°23.04′N, 85°43.72′E, 6900 m a.s.l.) in the middle of the Himalayas. Mountain weather conditions were observed continuously and automatically. This paper is the first to publish meteorological data for a whole year for a high-elevation region, and analyze wind direction, wind speed, air temperature, air pressure and humidity. Analysis of the observation data reveals that this region was strongly influenced by the westerly jet from October 10, 2005 to April 21, 2006 and by the Indian monsoon from May to September. The seasonal transitions of the westerly jet were characterized by changes in meteorological elements. In winter, influenced by the westerly jet, the wind speed in the study region was very high and fluctuated violently, gale days were frequent, temperature and air pressure fluctuated dramatically, the diurnal range of temperature decreased and the diurnal range of air pressure increased, relative humidity and specific humidity declined sharply, and air was dry. In summer, influenced by the Indian monsoon, the relative humidity and specific humidity were high. In addition, we analyzed reanalysis data for the location of the automatic weather station. The results confirmed that this region was strongly affected by the westerly jet from October 10, 2005 to April 21, 2006 and the observations that the seasonal transitions of the westerly jet were characterized by changes in meteorological elements.LI ShengHai YAO TanDong TIAN LiDe WANG PengLing 2011Chinese Science Bulletin2011,56,18:2
5A Preliminary Study on the Datong Fault Belt显示文摘The Datong fault belt is a NE trending fault in the northern Qinghai-Xizang (Tibet) Plateau and controls the boundary of the Xining Basin and Datong Basin. It consists of the Maziying-Miaogou (F_1) fault and the Laoye Mountain-Nanmenxia fault (F_2). There is obvious displacement in vertical direction along the belt. The field investigation results show that this belt has long-term activity. There are several meters long crushed zones and veins along the fault side in the basement rock. On the fault section,the Cambria system thrusts over the red-brick-colored Quaternary Period gravel,and there is a fault gouge of several centimeters thick developed on the fault plane. The fault gouge date (ESR) on the fault plane is 610±61ka. The covering deluvial loess is not dislocated,and the OSL result is 14.6±1.5ka. So it can be concluded that the fault belt was active in the middle Pleistocene,but inactive in the late Pleistocene according to the age data and geomorphologic features. Interior formations of the Datong basin features fold with the major axis orienting northwest. According to the relation of fault and fold deformation,Datong fault is a transversal tear,which is due to uneven compression of the folds in different parts and NNE trending regional compressive stress. It is common among the NE trending faults in the northeast of Qinghai-Xizang (Tibet) Plateau. These NE trending faults aren't large,and most are located in the active plate. They are all nearly vertical to the axis of the folds and compressive basins.Li Zhimin Tian Qinjian Yao Shenghai Li Wenqiao Chen Youshun Zou Haining Gao Zhanwu 2008Earthquake Research in China2008,22,3:2
6Chitin and chitosan dissolvedin ionic liquids as reversible sorbents of CO2显示文摘Xie Haibo Zhang Suobo Li Shenghai 2006Green Chemistry2006,,8:1
7显示文摘Li Shenghai Zhang Suobo Wang Xianhong 2008Langmuir2008,24,10:1
8Novel thin-film composite membranes with improved water flux from sulfonated cardo poly (arylene ether sulfone)bearing pendant amino groups 显示文摘Guang Chen Shenghai Li Xiaosa Zhang 2008Journal of Membrane Science2008,310,:1
9I- onic liquids as novel solvents for the dis- solution and blending of wool keratin fi- bers 显示文摘Xie I-Iaibo Li Shenghai Zhang Suobo 2005Green Chem2005,7,18:1
10Chitin and chitosan dissolved in ionic liquids as reversible sorbents of CO2 显示文摘Xie Haibo Zhang Suobo Li Shenghai 2006Green Chemistry2006,8,:1
11Ionic liquids as novel solvents for the dissolution and blending of wool keratin fibers 显示文摘Xie Haibo Li Shenghai Zhang Suobo 2005Green C hem2005,,7:1
12Distributed multi-robot sweep coverage for a region with unknown workload distribution显示文摘This paper considers the scenario where multiple robots collaboratively cover a region in which the exact distribution of workload is unknown prior to the operation.The workload distribution is not uniform in the region,meaning that the time required to cover a unit area varies at different locations of the region.In our approach,we divide the target region into multiple horizontal stripes,and the robots sweep the current stripe while partitioning the next stripe concurrently.We propose a distributed workload partition algorithm and prove that the operation time on each stripe converges to the minimum under the discrete-time update law.We conduct comprehensive simulation studies and compare our method with the existing methods to verify the theoretical results and the advantage of the proposed method.Flight experiments on mini drones are also conducted to demonstrate the practicality of the proposed algorithm.Muqing Cao Kun Cao Xiuxian Li Shenghai Yuan Yang Lyu Thien-Minh Nguyen Lihua Xie 2021Autonomous Intelligent Systems2021,1,1:1
13I- onic liquids as novel solvents for the disso- lution and blending of wool keratin fibers显示文摘Xie Haibo Li Shenghai Zhang Suolao 2005Green Chem2005,7,18:1
14Novel thin-film composite membranes with improved water flux from sulfonated cardo poly(arylene ether sulfone) bearing pendant amino groups 显示文摘Chen Guang Li Shenghai Zhang Xiaosa 2008Journal of Membrane Science2008,310,:1
15Different region climate regimes and topography affect the changes in area and mass balance of glaciers on the north and south slopes of the same glacierized massif (the West Nyainqentanglha Range, Tibetan Plateau)显示文摘Wusheng Yu Tandong Yao Shichang Kang Jianchen Pu Wei Yang Tanguang Gao Huabiao Zhao Hang Zhou Shenghai Li Weicai Wang Linglong Ma 2013Journal of Hydrology2013,,:1
16Preparation of antifouling ultrafiltration membranes from copolymers of polysulfone and zwitterionic poly(arylene ether sulfone)s显示文摘The past few decades have witnessed rapid gains in our demands of antifouling membranes such as water purification membranes and hemodialysis membranes.A variety of methodologies have been proposed for improving the antifouling performance and the hemocompatibility of the membranes.In this study,a series of copolymers(PSF-PESSB)containing polysulfone(PSF)and poly(arylene ether sulfone)bearing pendant zwitterionic sulfobetaine groups(PESSB)were prepared via one-pot polycondensation.Subsequently,the ultrafiltration(UF)membranes were prepared from different zwitterion-containing copolymers.The prepared membranes showed high thermal stability and mechanical properties.Besides,it also displayed attractive antifouling performance and blood compatibility.Compared with the original PSF membrane,the amount of protein absorption on the modified membrane was reduced;the flux recovery ratio and the resistance to blood cells were significantly improved.The results of this work suggest that PSF-PESSB membranes are expected to be applied in blood purification.The introduction of zwitterion-containing polymers to membranes paves ways for developing advanced hemodialysis technologies for crucial process.Sihan Huang Yaohan Chen Xue Wang Jing Guo Yonggang Li Lei Dai Shenghai Li Suobo Zhang 2022Chinese Journal of Chemical Engineering2022,35,9:1
17Synthesis and Properties of Novel Organosoluble Polyimides Derived from 1,4 - Bis triptycene Dianhydride and Various Aromatic Diamines显示文摘Quanyuan Zhang Shenghai Li Wenmu Li 2007Polymer2007,48,:1
18Synthesis and properties of novel organosoluble polyimides derived from 1, 4-bis 1-4-(3,4-dicarboxylphenoxy)] triptycene dianhydride and various aromatic diamines 显示文摘Zhang Quanyuan Li Shenghai Zhang Suobo 2007Polymer2007,48,:1
19Yield potential and radiation use efficiency of “super” hybrid rice grown under subtropical conditions显示文摘Yunbo Zhang Qiyuan Tang Yingbin Zou Diqin Li Jianquan Qin Shenghai Yang Lijun Chen Bing Xia Shaobing Peng 2009Field Crops Research2009,,:1
20Dissolution kinetics of smithsonite ore in ammonium chloridesolution 显示文摘Ju Shaohua Tang Motang Yang Shenghai Li Yingnian 2005Hydrometallurgy2005,,80:1
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