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| 1 | Precipitation seesaw phenomenon and its formation mechanism in the eastern and western parts of Northwest China during the flood season显示文摘Extending across three major plateaus,namely the Qinghai-Tibetan Plateau,the Inner Mongolia-Xinjiang Plateau and the Loess Plateau,Northwest China has the complex terrain and spatio-temporal climate variations,and is affected by the interactions among different circulation systems,such as the summer monsoon,the westerlies and the plateau monsoon.The understanding of the climate variability,as well as its characteristics and evolution mechanisms in this area has been limited so far.In this paper,the precipitation characteristics and mechanisms in the eastern and western parts of Northwest China during the flood season are compared and analyzed based on the data from 192 national meteorological observational sites in Northwest China in 1961-2016.The results show that,divided by the northern boundary of the East Asian summer monsoon,there are huge differences in the precipitation variation characteristics between the eastern and western parts.The inter-annual variations,interdecadal variations and total trends in the two parts all show a significant seesaw phenomenon.Moreover,it is found that the seesaw phenomenon of precipitation variation is closely related to the opposite variation between the East Asian summer monsoon index(MI)and the westerly circulation index(WI).In addition,the inverse variations on different time scales are only related to the contributions of precipitation at specific grades.Besides,in the two matching patterns of precipitation in the seesaw phenomenon,the middle and high latitudes are occupied by the'high-low-high'wave trains in the precipitation increases in the east of Northwest China(ENWC)and decreases in the west of Northwest China(WNWC)pattern,meaning precipitation increases in ENWC and decreases in WNWC.Whereas the opposite'low-high-low'wave trains at 500 hPa height are observed in the middle and high latitudes in the WH-EA pattern at 500 hPa height,meaning precipitation increases in WNWC and decreases in ENWC.Thus,the atmosphere circulation situation with two wave train types can support both the precipitation seesaw phenomenon and the opposite variation between MI and WI.Moreover,the seesaw phenomenon is shown to be related to the separate or joint effects of the South Asian High,ENSO and the plateau heating on the common but opposite effect on the summer monsoon and the westerlies,in which the South Asian High probably plays a more critical role.This study could deepen the scientific understanding of precipitation mechanisms and improve the weather forecast technology in Northwest China during the flood season. | Qiang ZHANG Jingjing LIN Weicheng LIU Lanying HAN | 2019 | Science China Earth Sciences2019，62，12： | 11 |
| 2 | Effect of ziprasidone and clozapine on the quality of life in patients with schizophrenia显示文摘 | Weicheng Han Zhang Xiaoming Huang | 2009 | Chinese Jottrnal of Behavioral M~dical and Brain Sciences2009，23，5： | 1 |
| 3 | Protective effect of the methanolic extract from Duchesnea indica against oxidative stress in vitro and in vivo显示文摘 | HU Weicheng HAN W HUANG Chaoqing | 2011 | Environmental Toxicology and Pharmacology2011，31，： | 1 |
| 4 | Superluminal solitons in a A-type atomic system with two-folded levels显示文摘 | HAN Dingan ZENG Yaguang CHEN Weicheng | 2007 | J Opt Soc Am B2007，24，： | 1 |
| 5 | Advances in Ecological Applications of Fengyun Satellite Data显示文摘In recent years,the remote sensing based on meteorological satellite observations has become an important tool for assessing global ecological conditions.Since the early 2000,Fengyun(FY)satellite data have been widely used to derive the key parameters of ecological environment in China.An integrated earth-observation system has been developed in China through using FY satellite data,including retrievals the key ecological parameters as well as to constructions of long-term data records of vegetation index,land surface temperature,net primary production,vegetation health index,and so on.Considerable progress has thus been made in the application and service for prevention of air pollution,management and control of ecological redline,ecological monitoring for the Belt and Road Initiative,and assessment of ecological environment for human settlement.In order to monitor the ecological parameters in real time and with a full dynamic coverage,it is necessary to improve the technology in application of ecological remote sensing from meteorological satellites,and further enhance the ecological meteorological service. | Xiuzhen HAN Hao GAO Jun YANG Yachun LI Weicheng GENG | 2021 | Journal of Meteorological Research2021，35，5： | 1 |
| 6 | 3D shape-stable temperature-regulated macro-encapsulated phase change material:KAl(SO_(4))_(2)·12H_(2)O-C_(2)H_(2)O_(4)·2H_(2)O-CO(NH_(2))_(2) eutectic/polyurethane foam as core and carbon modified silicone resin as shell显示文摘Micro-encapsulated phase change materials(PCMs)have been confirmed a high-efficiency way to store latent heat,but their poor mechanical properties,expensive and complicated synthesis block their industrial application.Herein,borrowing from this structure and magnifying it,we prepared a novel 3D shape-stable temperature-regulated macro-encapsulated PCMs.The KAl(SO_(4))_(2)·12H_(2)O-C_(2)H_(2)O_(4)·2H_(2)O-CO(NH_(2))_(2)(APSD-OAD-Urea)was configured as PCM to composite with light-weight porous polyurethane foam(PUF)framework,and the enthalpy reduction of PCM@PUF(core)was only 1.70%.Subsequent,carbon modified silicone resin(CMS,shell)was introduced to macro-encapsulate PCM@PUF.The results showed that with the optimized mass ratio of 75%APSD-25%OAD and extra addition of 10% Urea,the obtained PCM had a relatively high enthalpy(194.6 J/g),appropriate phase transition temperature(42.17℃)and suppressed supercooling(0.504℃).CMS thin-layer with 2.0 mm thickness increased resistance to deformation,impressions,scratches,and possessed a brilliant sealing effect on PCM@PUF to achieve leak-free and operation steady of PCM.PCM@PUF@CMS with low thermal conductivity from inside out displayed an outstanding thermal insulation performance.Moreover,the fluctuation of the thermodynamic property after 150 thermal cycles is relatively small.All these above enable the application of PCM@PUF@CMS in the thermal energy storage system and provide a novel strategy for the preparation of macro-encapsulated PCMs. | Weicheng Chen Xianghui Liang Wanhui Han Shuangfeng Wang Xuenong Gao Zhengguo Zhang Yutang Fang | 2022 | Journal of Materials Science & Technology2022，，5： | 1 |
| 7 | Conductive PS inverse opals for regulating proliferation and differentiation of neural stem cells显示文摘The development of neural tissue engineering has brought new hope to the treatment of spinal cord injury(SCI).Up to date,various scaffolds have been developed to induce the oriented growth and arrangement of nerves to facilitate the repair after injury.In this work,a conductive and anisotropic inverse opal substrate was presented by modifying polystyrene(PS)inverse opal films with carbon nanotubes and then stretching them to varying degrees.The film had good biocompatibility,and neural stem cells(NSCs)grown on the film displayed good orientation along the stretching direction.In addition,benefiting from the conductivity and anisotropy of the film,NSCs differentiated into neurons significantly.These results suggest that the conductive and anisotropic PS inverse opal substrates possess value in nerve tissue engineering regeneration. | Yangnan Hu Han Zhang Hao Wei Menghui Liao Xiaoyan Chen Jiayue Xing Lian Duan Cuntu Cheng Weicheng Lu Xuechun Yang Peina Wu Huan Wang Jingdun Xie Renjie Chai | 2023 | Engineered Regeneration2023，4，2： | 0 |
| 8 | An Earth-mass planet in a time of COVID-19:KMT-2020-BLG-0414Lb显示文摘We report the discovery of KMT-2020-BLG-0414 Lb,with a planet-to-host mass ratio q2=0.9-1.2×10-5=3-4 q⊕at 1σ,which is the lowest mass-ratio microlensing planet to date.Together with two other recent discoveries(4?q/q⊕?6),it fills out the previous empty sector at the bottom of the triangular(log s,log q)diagram,where s is the planet-host separation in units of the angular Einstein radiusθE.Hence,these discoveries call into question the existence,or at least the strength,of the break in the mass-ratio function that was previously suggested to account for the paucity of very low-q planets.Due to the extreme magnification of the event,Amax~1450 for the underlying single-lens event,its light curve revealed a second companion with q3~0.05 and|log s3|~1,i.e.,a factor~10 closer to or farther from the host in projection.The measurements of the microlens parallaxπE and the angular Einstein radiusθE allow estimates of the host,planet and second companion masses,(M1,M2,M3)~(0.3 M⊙,1.0 M⊕,17 MJ),the planet and second companion projected separations,(a⊥,2,a⊥,3)~(1.5,0.15 or 15)au,and system distance DL~1 kpc.The lens could account for most or all of the blended light(I~19.3)and so can be studied immediately with high-resolution photometric and spectroscopic observations that can further clarify the nature of the system.The planet was found as part of a new program of high-cadence follow-up observations of high-magnification events.The detection of this planet,despite the considerable difficulties imposed by COVID-19(two KMT sites and OGLE were shut down),illustrates the potential utility of this program. | Weicheng Zang Cheongho Han Iona Kondo Jennifer C.Yee Chung-Uk Lee Andrew Gould Shude Mao Leandro de Almeida Yossi Shvartzvald Xiangyu Zhang Michael D.Albrow Sun-Ju Chung Kyu-Ha Hwang Youn Kil Jung Yoon-Hyun Ryu In-Gu Shin Sang-Mok Cha Dong-Jin Kim Hyoun-Woo Kim Seung-Lee Kim Dong-Joo Lee Yongseok Lee Byeong-Gon Park Richard W.Pogge John Drummond Thiam-Guan Tan JoséDias do Nascimento Júnior Dan Maoz Matthew T.Penny Wei Zhu Ian A.Bond Fumio Abe Richard Barry David P.Bennett Aparna Bhattacharya Martin Donachie Hirosane Fujii Akihiko Fukui Yuki Hirao Yoshitaka Itow Rintaro Kirikawa Naoki Koshimoto Man Cheung Alex Li Yutaka Matsubara Yasushi Muraki Shota Miyazaki Greg Olmschenk Clément Ranc Nicholas J.Rattenbury Yuki Satoh Hikaru Shoji Stela Ishitani Silva Takahiro Sumi Daisuke Suzuki Yuzuru Tanaka Paul J.Tristram Tsubasa Yamawaki Atsunori Yonehara Andreea Petric Todd Burdullis Pascal Fouqué | 2021 | Research in Astronomy and Astrophysics2021，21，9： | 0 |
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