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19篇 您的检索式:作者名="Liu Bingqi"
    题名 作者 年代 出处 被引量
1On the Radiative Properties of Ice Clouds:Light Scattering, Remote Sensing,and Radiation Parameterization显示文摘Presented is a review of the radiative properties of ice clouds from three perspectives: light scattering simulations, remote sensing applications, and broadband radiation parameterizations appropriate for numerical models. On the subject of light scattering simulations, several classical computational approaches are reviewed, including the conventional geometric-optics method and its improved forms, the finite-difference time domain technique, the pseudo-spectral time domain technique, the discrete dipole approximation method, and the T-matrix method, with specific applications to the computation of the singlescattering properties of individual ice crystals. The strengths and weaknesses associated with each approach are discussed.With reference to remote sensing, operational retrieval algorithms are reviewed for retrieving cloud optical depth and effective particle size based on solar or thermal infrared(IR) bands. To illustrate the performance of the current solar- and IR-based retrievals, two case studies are presented based on spaceborne observations. The need for a more realistic ice cloud optical model to obtain spectrally consistent retrievals is demonstrated. Furthermore, to complement ice cloud property studies based on passive radiometric measurements, the advantage of incorporating lidar and/or polarimetric measurements is discussed.The performance of ice cloud models based on the use of different ice habits to represent ice particles is illustrated by comparing model results with satellite observations. A summary is provided of a number of parameterization schemes for ice cloud radiative properties that were developed for application to broadband radiative transfer submodels within general circulation models(GCMs). The availability of the single-scattering properties of complex ice habits has led to more accurate radiation parameterizations. In conclusion, the importance of using nonspherical ice particle models in GCM simulations for climate studies is proven.Ping YANG Kuo-Nan LIOU Lei BI Chao LIU Bingqi YI Bryan A.BAUM 2015Advances in Atmospheric Sciences2015,32,1:9
2Formation of the highest sand dunes on Earth显示文摘Xiaoping Yang Louis Scuderi Tao Liu Philippe Paillou Hongwei Li Jufeng Dong Bingqi Zhu Weiwei Jiang Andrew Jochems Gary Weissmann 2011Geomorphology2011,,1:2
3Formation and evolution of sand deserts in Xinjiang, Northwest China: I. Provenances of desert sands显示文摘沙的荒芜的风景处于自然条件是干旱气候和丰富的沙材料供应的一个地质的产品,因此沙的沙漠的形成是为理解在地球系统的各种各样的 stratigraphic/epigenetic 范围之间的相互作用的一个理想的学习目标。直到现在,然而,这些的起源和形成的知识在 Xinjiang 抛弃,中亚多样、不一致,系统的评论是必要的。在在包围 Xinjiang 沙漠的新生代阶层的这些沙漠和他们的成双的灰尘存款的内部区域的古老的风神的沙沉积是反映沙漠的沙材料和形成和进化的起源的直接、间接的线索。在外部区域基于 geochemical,荒芜的沙的矿物学、同位素的证据和相关存款,这篇论文在 Xinjiang 在沙的沙漠的发展考察研究进步,西北中国。许多证明建议在 Xinjiang 的荒芜的沙主要从古老的雨、冲积、河的沉积被采购并且因为本地沙供应,最后被完成。它指出在 Xinjiang 的构造结构的设置在 Tarim 盆和被地区性的水文学系统极大地影响的 Junggar 盆使沉积成为了两个,风神的进程从行星的风系统发源西,东方亚洲冬季季风和地形学的山脉山谷弯屈。然而,交通路径的方向在水文学动力学和风神的动力学之间是不同的,分别地,它被盆 tectonics 和地区性的大气的发行量线路的倾斜的结构决定并且决定了不同代理人交付的这些沉积的运输小径的 anisotropies。这在二大盆导致由岩屑形成的沉积交通的一个地质的周期并且大部分因此增加沉积混合的度,引申并且在沙起源的更年轻、更旧的沉积来源,以及复杂性和差异之间再循环。ZHU Bingqi YU Jingjie QIN Xiaoguang Patrick RIOUAL LIU Ziting XIONG Heigang 2014Journal of Geographical Sciences2014,24,1:2
4双重卡口机构对波浪能转换器性能的影响评估显示文摘Lower efficiencies induce higher energy costs and pose a barrier to wave energy devices'commercial applications.Therefore,the efficiency enhancement of wave energy converters has received much attention in recent decades.The reported research presents the double snap-through mechanism applied to a hemispheric point absorber type wave energy converter(WEC)to improve the energy absorption perfomance.The double snap-through mechanism comprises four oblique springs mounted in an X-configuration.This provides the WEC with different dynamic stability behaviors depending on the particular geometric and physical parameters employed.The efficiency of these different WEC behaviors(linear,bistable,and tristable)was initially evaluated under the action of regular waves.The results for bistable or tristable responses indicated significant improvements in the WEC's energy capture efficiency.Furthermore,the WEC frequency bandwidth was shown to be significantly enlarged when the tristable mode was in operation.However,the corresponding tristable trajectory showed intra-well behavior in the middle potential well,which induced a more severe low-energy absorption when a small wave amplitude acted on the WEC compared to when the bistable WEC was employed.Nevertheless,positive effects were observed when appropriate initial conditions were imposed.The results also showed that for bistable or tristable responses,a suitable spring stiffness may cause the buoy to oscillate in high energy modes.Bingqi Liu Carlos Levi Segen F.Estefen Zhijia Wu Menglan Duan 2021Journal of Marine Science and Application2021,20,2:2
5Theoretical analysis of the effect of meteorologic factors on passive ranging technology based on oxygen absorption spectrum显示文摘Yah Zongqun Liu Bingqi Hua Wenshen 2013Optik2013,124,:1
6Theoretical analysis of the effect of meteorologic factors on passive ranging technology based on oxygen absorption spectrum 显示文摘Yan Zongqun Liu Bingqi Hua Wenshen 2013Optik2013,124,23:1
7Algorithms of target detection on hyperspectral imagery显示文摘Yahui Yan Bingqi Liu 2013Optik2013,,124:1
8A rapid temperature-responsive sol-gel reversible poly (N-isopropy- lacrylamide)-g-methylcellulose copolymer hydrogel显示文摘Liu Wenguang Zhang Bingqi Lu William W 2004Bio materials2004,25,15:1
9Changes in the Urban Surface Thermal Environment of a Chinese Coastal City Revealed by Downscaling MODIS LST with Random Forest Algorithm显示文摘Analysis of the formation and evolution of urban surface thermal environment is crucial for urban planning and improving the environment of a settlement.Qingdao was selected in this study as a typical coastal city undergoing rapid urbanization,and the spatiotemporal dynamic characteristics of its urban surface thermal environment from2010 to 2019 were evaluated.The random forest(RF)algorithm was adopted to obtain its land surface temperature(LST)map with 30-m resolution by downscaling the Moderate Resolution Imaging Spectroradiometer(MODIS)LST product;the remote sensing indices emphasizing different land cover types,LST calculated by the radiative transfer equation,and elevation were used as input variables in the algorithm.The heat island intensity(HII),urban heat island(UHI)volume,and UHI grade were used to analyze the spatiotemporal dynamic characteristics of the urban surface thermal environment in Qingdao.The results show an increasing trend in average HII between 1.1 and 2.52°C in the study area over the past 10 years.The northern city appeared to have the highest UHI volume,while change of the UHI volume in Huangdao District of southwestern Qingdao was the most significant.The areas with high HII have gradually expanded during the last 10 years,and the areas with a 10-yr persistently high HII are distributed mainly in old urban areas with high building density and a dense population.Different factors may influence UHI,such as artificial heat sources,surface heat sources,and hybrid heat sources.Finally,adjusting the urban structure,increasing the vegetated area,and changing building colors are proposed to mitigate UHI in the areas with continuously high HII.Nuo XU Fan DENG Bingqi LIU Caixia LI Hancong FU Huan YANG Jiahua ZHANG 2021Journal of Meteorological Research2021,35,5:1
10Recharge to the inter-dune lakes and Holocene climatic changes in the Badain Jaran Desert, western China显示文摘Xiaoping Yang Nina Ma Jufeng Dong Bingqi Zhu Bing Xu Zhibang Ma Jiaqi Liu 2009Quaternary Research2009,,1:1
11Study on real-timesimulation analysis and inverse analysis system for temperature and stress of concrete dam 显示文摘Lei Zhang Yi Liu Bingqi Li 2015Mathematical Problems in Engineering2015,,:1
12A rapid temperature-responsive sol-gel reversible poly (N-isopropylaerylamide)-g-methyleellulose eopolymer hydrogel显示文摘Liu Wenguang Zhang Bingqi William W Lu 2004Biomaterials2004,25,:1
13Efficacy and Safety of Dexamethasone Ointment on Recurrent Aphthous Ulceration显示文摘Chuanxia Liu Zengtong Zhou Guanjian Liu Qintao Wang Jiangang Chen Ling Wang Yongmei Zhou Guangying Dong Xueyi Xu Yuechun Wang Yiqing Guo Mei Lin Lan Wu Gefei Du Changlei Wei Xin Zeng Xiaoyi Wang Junzheng Wu Bingqi Li Gang Zhou Hongmei Zhou 2012The American Journal of Medicine2012,,3:1
14Climate change and water security in the northern slope of the Tianshan Mountains显示文摘Water security is under threat worldwide from climate change. A warming climate would accelerate evaporationand cryosphere melting, leading to reduced water availability and unpredictable water supply. However, thewater crisis in the Northern Slope of Tianshan Mountains(NSTM) faces dual challenges because water demandsforfast-growing urban areas have put heavy pressure on water resources. The mountain-oasis-desert system featuresglacier-fed rivers that sustain intensive water use in the oasis and end in the desert as fragile terminal lakes.The complex balance between water conservation and economic development is subtle. This paper investigateschanges in hydroclimatic variables and water security-related issues on the NSTM. The spatiotemporal variationsin glaciers, climatic variables, rivers, lakes and reservoirs, groundwater, surface water, human water use, andstreamflow were analyzed for the past four decades. The results show that temperature in the NSTM exhibitedan apparent upward trend with a more significant warming rate in the higher altitude regions. Glacier massloss and shrinkage was strong. The average annual streamflow increased from 1980-1989 to 2006–2011 at mosthydrological stations. The monthly dynamics of surface water area showed notable variability at both inter-annual and seasonal scales, revealing the impacts of both natural and anthropogenic drivers on surface wateravailability in the region. The terrestrial water storage anomaly showed a decreasing trend, which might berelated to groundwater pumping for irrigation. Human water use for agriculture and industry grew with theincrease in cultivated land area and gross domestic product (GDP). The increased agricultural water use wasstrongly associated with the expansion of oases. It is unclear whether water availability would remain high underfuture climatic and hydrological uncertainties, posing challenges to water management. In the context of rapidurban growth and climate change, balancing water for humans and nature is vital in achieving the SustainableDevelopment Goals (SDGs) in NSTM. This study provides a baseline understanding of the interplay among water,climate change, and socio-economic development in NSTM. It would also shed light on wise water managementunder environmental changes for other rapidly developing mountain-oasis-desert systems worldwide.Qiuhong Tang Xingcai Liu Yuanyuan Zhou Puyu Wang Zhongqin Li Zhixin Hao Suxia Liu Gang Zhao Bingqi Zhu Xinlin He Fadong Li Guang Yang Li He Haoxin Deng Zongxia Wang Xiang Ao Zhi Wang Paul P.J.Gaffney Lifeng Luo 2022Geography and Sustainability2022,3,3:1
15A multi-objective stochastic optimal planning method for stand-alone mierogrid system 显示文摘Gut Li Liu Wenjian Jiao Bingqi 2014Generation Transmission and Distribution IET2014,8,7:1
16Theoretical analysis of the effect of meteorologic factors on passive ranging technology based on oxygen absorption spectrum显示文摘Yan Zongqun Liu Bingqi Hua Wenshen 2013Optik2013,124,:1
17IMPA2 blocks cervical cancer cell apoptosis and induces paclitaxel resistance through p53-mediated AIFM2 regulation显示文摘Cervical cancer continues to be a concern,and the prognosis of locally advanced cervical cancer remains poor.IMPA2 was previously identified as a potential oncogene and regulator of tumor apoptosis.In this study,we aim to further elucidate the underlying mechanisms of IMPA2 gene in the regulation of cervical cancer apoptosis.First,we identify AIFM2 as an upregulated gene in IMPA2-silenced cervical cancer cells,and inhibition of AIFM2 reverses IMPA2 knockdown-induced apoptosis.Further study reveals that AIFM2 regulates cell apoptosis in a mitochondrial-dependent manner with a redistribution of mitochondrial membrane potential and intracellular Ca^(2+) levels.However,the analysis of the STRING database and our experimental results show that AIFM2 has little effect on cervical cancer progression and survival.Further mechanistic study demonstrates that IMPA2 and AIFM2 silencing inhibits apoptosis by activating p53.Meanwhile,the knockdown of IMPA2 enhances the chemosensitivity of cervical cancer cells by strengthening paclitaxel-induced apoptosis.Based on the above results,the IMPA2/AIFM2/p53 pathway may be a new molecular mechanism for paclitaxel treatment of cervical cancer and an effective strategy to enhance the sensitivity of cervical cancer cells to paclitaxel.Our findings display a novel function of IMPA2 in regulating cell apoptosis and paclitaxel resistance mediated by a disturbance of AIFM2 and p53 expression,potentially making it a novel therapeutic target for cervical cancer treatment.Kexin Xie Lei Liu Min Wang Xianping Li Bingqi Wang Sheng Yin Wanxin Chen Yingrui Lin Xiaolin Zhu 2023Acta Biochimica et Biophysica Sinica2023,55,4:0
18Relation or Influence of RVOTO in the Inflammatory Response to Reoxygenation in Patients with Tetralogy of Fallot显示文摘Background:This study evaluated differential inflammatory response to cardiopulmonary bypass reoxygenation in tetralogy of Fallot repair.Methods:We performed a retrospective study at a cardiovascular center from 2012 to 2018,including 500 patients aged 1 week–18 years who received complete repair of tetralogy of Fallot.Patients were grouped according to tertiles of preoperative RVOT gradient on echocardiography into mild,moderate,and severe stenosis.We measured the highest perfusate oxygenation(PpO_(2))during aortic occlusion as independent variable.Primary outcome was systemic inflammatory response syndrome(SIRS)within 7 days postoperatively or the time of death or discharge.Results:Overall,rate of SIRS was 24.2% without significant differences among three groups(P>0.05).Older age,male,and smaller indexed left ventricular end-diastolic volume is independent risk factor of SIRS.There were significant interactions between RVOT stenosis and PpO2 on SIRS(P interaction=0.011):higher PpO_(2) was associated with a greater SIRS risk among combined moderate and severe stenotic children(OR 1.46395%CI[1.080,1.981]per-SD increase,P=0.014)but not among mild stenotic children(OR 0.900[0.608,1.333]per-SD increase;P=0.600),independent of covariates.Conclusion:The association of PpO_(2) with SIRS was modified by RVOT obstruction severity in tetralogy of Fallot repair.Hong Liu Luyao Ma Jinghang Li Bingqi Sun Siqiang Zheng Yongfeng Shao 2021Congenital Heart Disease2021,16,5:0
19Differentiation of endogenous neural stem cells in adult versus neonatal rats after brachial plexus root avulsion injury显示文摘An experimental model of brachial plexus root avulsion injury of cervical dorsal C5-6 was established in adult and neonatal rats.Real-time PCR showed that the levels of brain-derived neurotrophic factor,nerve growth factor and neurotrophin-3 in adult rats increased rapidly 1 day after brachial plexus root avulsion injury,and then gradually decreased to normal levels by 21 days.In neonatal rats,levels of the three neurotrophic factors were decreased on the first day after injury,and then gradually increased from the seventh day and remained at high levels for an extended period of time.We observed that greater neural plasticity contributed to better functional recovery in neonatal rats after brachial plexus root avulsion injury compared with adult rats.Moreover, immunohistochemical staining showed that the number of bromodeoxyuridine/nestin-positive cells increased significantly in the spinal cords of the adult rats compared with neonatal rats after brachial plexus root avulsion injury.In addition,the number of bromodeoxyuridine/glial fibrillary acidic protein-positive cells in adult rats was significantly higher than in neonatal rats 14 and 35 days after brachial plexus injury.Bromodeoxyuridine/β-tubulin-positive cells were not found in either adult or neonatal rats.These results indicate that neural stem cells differentiate mainly into astrocytes after brachial plexus root avulsion injury.Furthermore,the degree of neural stem cell differentiation in neonatal rats was lower than in adult rats.Bingqi Wang Lei Chen Bin Liu Zhigang Liu Zhixin Zhang Yuehai Pan Liangsong Song Laijin Lu 2012Neural Regeneration Research2012,7,23:0
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