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13篇 您的检索式:作者名="Baojuan Sun"
    题名 作者 年代 出处 被引量
1RS analysis of glaciers change in the Heihe River Basin, Northwest China, during the recent decades显示文摘Heihe 河盆是在西北中国的第二最大的内陆河盆,它也是在干旱水文学,水资源和在冷区域的研究的另外的方面的一个热点。另外, Heihe 河盆有完全的风景,中等分水岭尺寸,和典型社会生态的环境问题。到目前为止,没有对整个河盆的冰河变化信息的详细评价。地志的地图数据, Landsat TM/ETM+ 遥感图象和数字举起建模的 1:50,000 数据在这研究被使用。通过综合计算机自动解释和视觉解释方法,面向对象的图象特征抽取方法被使用提取冰河轮廓信息。冰河变化数据从分析被导出,并且到气候的冰河变化和它的反应在时期 1956/19632007/2011 变化也被分析。结果显示出那:(1 ) 在时期 1956/19632007/2011, Heihe 河盆冰河有一个明显的撤退趋势,冰河的全部的区域从 361.69 km 减少了 < 啜 class= “ a-plus-plus ” > 2 到 231.17 km < 啜 class= “ a-plus-plus ” > 2 ;以 36.08% 的率缩小,与平均单个冰河区域减少 0.14 km < 啜 class= “ a-plus-plus ” > 2 ;冰河的全部的数字从 967 ~ 800 减少了。(2 ) 在这盆的冰河主要在 43004400 m, 44004500 m 和 45004600 m 的举起被散布;并且在冰河分发和冰河变化有重要地区性的差别。(3 ) 与另外的西方的山冰河相比,在 Heihe 河盆的冰河撤退有更高的率。(4 ) 六个气象学的车站的分析从 1960 ~ 2010 的年度平均温度和降水数据建议吝啬的年度温度显著地增加了,年度降水也显示出一个增加的趋势。冰河收缩是密切相关的,而且,温度升起,这被结束冰河融化由增加的降水由比冰河团供应大的升起的温度引起了到某程度。HUAI Baojuan LI Zhongqin WANG Shengjie SUN Meiping ZHOU Ping XlAO Yan 2014Journal of Geographical Sciences2014,24,6:9
2Scalp-cluster acupuncture with electrical stimulation can improve motor and living ability in convalescent patients with post-stroke hemiplegia显示文摘OBJECTIVE: To determine whether patients with post-stroke hemiplegia could benefit from long-term treatment with scalp cluster(SC) acupuncture combined with electrical stimulation(ES)and to evaluate the feasibility of this treatment to improve motor and living abilities.METHODS: Twenty patients were enrolled and divided into two groups: SC acupuncture and SC acupuncture with ES(SC and SC + ES, respectively). All participants also received rehabilitation training.All participants were blindly evaluated using the Fugl-Meyer assessment scale for motor ability, the modified Barthel Index for living ability, and a scale for the degree of neurological deficits. Outcome was assessed at three points before randomized grouping, at the beginning or treatment, and after4 weeks of treatment.RESULTS: Following 4 weeks treatment, all the patients exhibited significant improvements in aspects of motor ability, living ability, and the severity of neurological deficits. The experimental group(SC + ES) scored higher on the Fugl-Meyer assessment scale(68 ± 12) and the modified Barthel Index(49 ± 9) than the control(SC) group(50 ± 13,36 ± 13, respectively).CONCLUSION: When patients with post-stroke hemiplegia are treated using SC acupuncture with ES, motor and living ability can improve more than if they were treated with SC acupuncture alone.Wang Xiaohong Zhang Qi Cui Baojuan Sun Junhua Ye Lan Huang Laigang Wang Daoqing 2018Journal of Traditional Chinese Medicine2018,38,3:7
3Room temperature ferromagnetism in ultra-thin van der Waals crystals of 1T-CrTe2显示文摘Although many emerging new phenomena have been unraveled in two dimensional(2D)materials with long-range spin orderings,the usually low critical temperature in van der Waals(vdW)magnetic material has thus far hindered the related practical applications.Here,we show that ferromagnetism can hold above 300 K in a metallic phase of 1T-CrTe2 down to the ultra-thin limit.It thus makes CrTe2 so far the only known exfoliated ultra-thin vdW magnets with intrinsic long-range magnetic ordering above room temperature.An in-plane room-temperature negative anisotropic magnetoresistance(AMR)was obtained in ultra-thin CrTe2 devices,with a sign change in the AMR at lower temperature,with−0.6%and+5%at 300 and 10 K,respectively.Our findings provide insights into magnetism in ultra-thin CrTe2,expanding the vdW crystals toolbox for future room-temperature spintronic applications.Xingdan Sun Wanying Li Xiao Wang Qi Sui Tongyao Zhang Zhi Wang Long Liu Da Li Shun Feng Siyu Zhong Hanwen Wang Vincent Bouchiat Manuel Nunez Regueiro Nicolas Rougemaille Johann Coraux Anike Purbawati Abdellali Hadj-Azzem Zhenhua Wang Baojuan Dong Xing Wu Teng Yang Guoqiang Yu Bingwu Wang Zheng Han Xiufeng Han Zhidong Zhang 2020Nano Research2020,13,12:6
4Mapping and validation of the epistatic D and P genes controlling anthocyanin biosynthesis in the peel of eggplant (Solanum melongena L.) fruit显示文摘Fruit color is an important trait inf luencing the commercial value of eggplant fruits.Three dominant genes(D,P and Y)cooperatively control the anthocyanin coloration in eggplant fruits,but none has been mapped.In this study,two white-fruit accessions(19141 and 19147)and their F2 progeny,with 9:7 segregation ratio of anthocyanin pigmented versus non-pigmented fruits,were used for mapping the D and P genes.A high-density genetic map was constructed with 5270 SNPs spanning 1997.98 cM.Three QTLs were identified,including two genes on chromosome 8 and one on chromosome 10.Gene expression analyses suggested that the SmANS on chromosome 8 and SmMYB1 on chromosome 10 were the putative candidate genes for P and D,respectively.We further identified(1)a SNP leading to a premature stop codon within the conserved PLN03176 domain of SmANS in 19141,(2)a G base InDel in the promoter region leading to an additional cis-regulatory element and(3)a 6-bp InDel within the R2-MYB DNA binding domain of SmMYB1,in 19147.Subsequently,these three variations were validated by PARMS technology as related to phenotypes in the F2 population.Moreover,silencing of SmANS or SmMYB1 in the purple red fruits of F1(E3316)led to inhibition of anthocyanin biosynthesis in the peels.Conversely,overexpression of SmANS or SmMYB1 restored anthocyanin biosynthesis in the calli of 19141 and 19147 respectively.Our findings demonstrated the epistatic interactions underlying the white color of eggplant fruits,which can be potentially applied to breeding of eggplant fruit peel color.Qian You Huimin Li Jun Wu Tao Li Yikui Wang Guangwen Sun Zhiliang Li Baojuan Sun 2023Horticulture Research2023,10,2:2
5Seasonal variation and sources of atmospheric polycyclic aromatic hydrocarbons in a background site on the Tibetan Plateau显示文摘The study of atmospheric polycyclic aromatic hydrocarbons(PAHs) in northeastern Tibetan Plateau with fragile ecological environment and complex atmospheric circulation system is blank. To understand the characteristics and sources of persistent organic pollutants in the atmosphere of the northeastern Tibetan Plateau, we monitored levels in the central Qilian Mountain. From 2016 to 2017, we collected 45-pair(particle + gas) samples using active air samplers to investigate the sources, transport paths, and their influencing factors.Sources of PAHs were analysed with a source diagnostic model, and atmospheric transport paths were calculated. The concentration range for Σ15PAHs was 439–4666 pg/m^(3), and the average was 2015 pg/m^(3). The PAHs in central Qilian Mountain are mainly low molecular weight(LMW) PAHs. Winter concentrations of PAHs were higher than those in summer. The transport of PAHs is mainly affected by westerlies, and there are seasonal differences. Source analysis showed that PAHs mainly came from coal and biomass combustion and vehicle emissions, with seasonal differences. This study clarifies the concentration and seasonal variation of PAHs in the northern Tibetan Plateau, which is conducive to understanding the atmospheric transport process and fate of pollutants. The background site of Qilian Mountains located in the Silk Road economic belt has the value and significance of longterm observation of pollutants.Xuemei Wu Weijun Sun Baojuan Huai LeiWang Chuntan Han Yetang Wang Wenying Mi 2023Journal of Environmental Sciences2023,,3:2
6Light-in duced change of charge transfer band in one europium doped aluminosilicate glass 显示文摘Baojuan Sun Hongwei Song Jiwei Wang 2003Chemical Physics Letters2003,368,:1
7How do GPM and TRMM precipitation products perform in alpine regions?A case study in northwestern China's Qilian Mountains显示文摘Satellite technologies provide valuable areal precipitation datasets in alpine mountains.However,coarse resolution still limits the use of satellite precipitation datasets in hydrological and meteorological research.We evaluated different time scales and precipitation magnitudes of Tropical Rainfall Measurement Mission 3B43 V7(TRMM)and Global Precipitation Measurement(GPM)products for alpine regions using ground precipitation datasets from January 2015 to June 2019 obtained from 25 national meteorological stations and 11 sets of T-200B weighing precipitation gauges in the Qilian Mountains.The results indicated that GPM outperformed TRMM at all temporal scales at an elevation<3500 m with a higher probability of detection(POD),false alarm ratio(FAR),and frequency bias index(FBI)and performed best at 3000 m;TRMM performed better than GPM at an elevation>3500 m,with the best performance at 4000 m.GPM and TRMM had the best estimation accuracy in areas with monthly precipitation of 30 mm and 40 mm,respectively.Both TRMM and GPM products underestimated mid to large daily precipitation and overestimated light daily precipitation averaging<2 mm/d.This research not only emphasizes the superiority of GPM/TRMM in different regions but also indicates the limitations of precipitation algorithms.SUN Weijun CHEN Rensheng WANG Lei WANG Yingshan HAN Chuntan HUAI Baojuan 2022Journal of Geographical Sciences2022,32,5:1
8Light-in duced luminescent enhancement and structural change in cubic nanocrystalline Y203 :Tb显示文摘Wang Jiwei Song Hongwei Sun Baojuan 2003Chemical Physics Let ters2003,379,56:1
9Perspectives on exfoliated two-dimensional spintronics显示文摘Magnetic orderings, i.e., the spontaneous alignment of electron spins below a critical temperature, have been playing key roles in modern science and technologies for both the wide applications of magnetic recording for information storage and the vibrant potential of solid state electronic spin devices (also known as spintronics) for logic operations. In the past decades, thanks to the development of thin film technologies, magnetic thin films via sputtering or epitaxial growth have made the spintronic devices possible at the industrial scale. Yet thinner materials at lower costs with more versatile functionalities are highly desirable for advancing future spintronics. Recently, van der Waals magnetic materials, a family of magnets that can in principle be exfoliated down to the monolayer limit, seem to have brought tremendous opportunities: new generation van der Waals spintronic devices can be seamlessly assembled with possible applications such as optoelectronics, flexible electronics, and etc. Moreover, those exfoliated spintronic devices can potentially be compatible with the famed metal-oxide field effect transistor architectures, allowing the harness of spin performances through the knob of an electrostatic field.Xiaoxi Li Baojuan Dong Xingdan Sun Hanwen Wang Teng Yang Guoqiang Yu Zheng Vitto Han 2019Journal of Semiconductors2019,40,8:1
10Heterostructure of 2D MoSe_(2) nanosheets vertically grown on bowllike carbon for high-performance sodium storage显示文摘Transition metal dichalcogenides are attractive anode materials for sodium ion batteries(SIBs)due to their high theoretical capacity and large interlayer spacing.However,its practical application is hampered by the sluggish kinetics of Na^(+)insertion and structure collapse caused by Na^(+)insertion/deinsertion.Herein,the heterostructures of MoSe_(2) nanosheets vertically growing on bowl-like carbon(MoSe_(2)@C)are designed and prepared by a template method coupled with selenization treatment to boost storage sodium performance.The hollow and collapse could provide enough storage space for Na^(+)and alleviate the volume expansion during the charge/discharge processes.MoSe_(2) nanosheets vertically grown on carbon could expose more active sites for adsorbing Na^(+)to enhance the utilization rate of electrode materials.Moreover,building heterostructures by combining different phase components could facilitate Na^(+)diffusion and advance reaction kinetics.Benefiting from these merits,the bowl-like MoSe_(2)@C shows outstanding reversible capacity(356.8 mAh·g^(-1) after 1500 cycles at 1 A·g^(-1))and remarkable rate performance(249.9 mAh·g^(-1)10 A·g^(-1)).Nianxiang Shi Guangzeng Liu Baojuan Xi Xuguang An Changhui Sun Shenglin Xiong 2024Nano Research2024,17,5:0
11Performance of surface radiation products of Greenland Ice Sheet using in-situ measurements显示文摘Radiation is the direct energy source of the surface natural environment and the main driving force of climate change.It has increasingly become an important meteorological factor affecting the surface heat exchange and glacier mass balance,especially in the glacier changes of the Greenland Ice Sheet(Gr IS).Due to the harsh climatic conditions of Gr IS and sparse observed data,it has become an important way to obtain radiation data from reanalysis datasets.However,the applicability of these radiation data on Gr IS is uncertain and worth exploring.In this work,we evaluate five reanalysis datasets(the fifth generation of European Centre for Medium-Range Weather Forecasts(ERA5),European Centre for Medium-Range Weather Forecasts Interim Reanalysis(ERA-Interim),Japanese 55-year Reanalysis(JRA55),National Centers for Environmental Prediction Reanalysis II(NCEP2)and Modern-Era Retrospective analysis for Research and Applications,Version 2(MERRA-2))during 1997-2022 using observations from 26 Program for Monitoring the Greenland Ice Sheet(PROMICE)automatic weather stations(AWSs)and 3 K-transect AWSs on Gr IS.The conclusions are as follows:ERA5 has the best performances in downward shortwave radiation(SWD)as well as downward and upward longwave radiation(LWD and LWU),but the performance is not the best in upward shortwave radiation(SWU).Based on the radiation budget analysis with ERA5 during 1979-2022,the fluctuation of longwave radiation is greater than that of shortwave radiation.The seasonal variation of shortwave radiation is obvious,while that of longwave radiation is small.The increasing trend of longwave radiation may result from global warming,in which ice sheets absorb more solar radiation and the surface heats up significantly,emitting more LWU.CHE Jiahang HUAI Baojuan SUN Weijun DING Minghu WANG Lei ZHANG Qinglin WU Jiake KANG Limin TENG Xinru YANG Xiaohong YAN Jinpei ZHAO Shuhui 2023Advances in Polar Science2023,34,3:0
12MoSe_(2)/TiO_(2)heterostructure integrated in N-doped carbon nanosheets assembled porous core-shell microspheres for enhanced sodium storage显示文摘Engineering the structure and composition of electrode materials is one of the essential means for achieving excellent electrochemical performance.The rational design of Na+host materials is still a massive challenge for sodium ion batteries(SIBs).Herein,MoSe_(2)/TiO_(2)heterostructure is integrated with N-doped carbon nanosheets to assemble into hierarchical flowerlike porous core-shell microspheres(MoSe_(2)/TiO_(2)@N-C),which is firstly reported by room-temperature stirring coupled with vulcanization treatment.The cavity of the core-shell structure could provide enough storage space for Na+and alleviate the volume expansion during charge/discharge processes.The apertures between nanosheets provide a guarantee for the rapid penetration of electrolyte to enhance the utilization rate of electrode materials.Furthermore,building heterostructures by combining different phase structures can facilitate electron transfer and accelerate reaction kinetics.Benefiting from the synergistic contributions of structure and composition,MoSe_(2)/TiO_(2)@N-C as SIBs anode material shows better reversible capacities of 302.5 mAh·g^(-1)at 1 A·g^(-1)for 400 cycles and 217.4 mAh·g^(-1)at 4 A·g^(-1)for 900 cycles.Strikingly,the reversible capacities can be restored entirely to the initial level after a high current density cycle.Nianxiang Shi Guangzeng Liu Baojuan Xi Xuguang An Changhui Sun Xinzheng Liu Shenglin Xiong 2023Nano Research2023,16,7:0
13The emerging ferroic orderings in two dimensions显示文摘Because of the discovery of carbon atomic flatland, emerging physical phenomena are reported using the platform of two-dimensional materials and their hetero-structures. Especially, quantum orderings,such as superconductivity, ferromagnetism, and ferroelectricity in the atomically thin limit are cutting edge topics, which are of broad interest in the scope of condensed matter physics. In this study, we will recall the recent developments on two-dimensional ferroic orderings from both experimental and theoretical points of view. The booming of ferroic orderings in van der Waals two-dimensional materials are believed to hold promises for the next generation spin-or dipole-related nanoelectronics, because they can be seamlessly interfaced into heterostructures, and in principle are in line with large scale low-cost growth, flexible wearable devices, as well as semiconducting electronics thanks to the existence of band gaps in many of them.Yupeng ZHANG Hanwen WANG Feng LI Xingdan SUN Baojuan DONG Xiaoxi LI Zheng Vitto HAN Teng YANG Han ZHANG 2019Science China(Information Sciences)2019,62,12:0
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