|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Chinese Stroke Center Alliance:a national effort to improve healthcare quality for acute stroke and transient ischaemic attack:rationale,design and preliminary findings显示文摘Background In June 2015,the Chinese Stroke Association(CSA)initiated the Chinese Stroke Center Alliance(CSCA)to establish the national hospital-based stroke care quality assessment and improvement platform.This article outlines its objectives,operational structure,patient population,quality improvement(QI)intervention tools,data elements,data collection methodology and current patient and hospital data.Methods The CSCA is a national,hospital-based,multicentre,voluntary,multifaceted intervention and continuous QI initiative.This multifaceted intervention includes stroke centre development,written care protocols,workshops and a monitoring/feedback system of evidencebased performance measures.The data coordinating centre of the CSCA resides at the China National Clinical Research Center for Neurological Diseases,Beijing Tiantan Hospital.results As of July 2017,1576 hospitals in China have contributed detailed clinical information to serve as a benchmark for the stroke care quality of 433264 patients with acute stroke/transient ischaemic attacks(TIA),including 352572(81.38%)acute ischaemic stroke,30362(7.01%)TIA,42080(9.71%)spontaneous intracranial haemorrhage,5505(1.27%)subarachnoid haemorrhage and 2745(0.63%)not specified stroke.Conclusion The CSCA programme is designed to establish a continuous national stroke registry and help healthcare providers develop stroke centres and treat patients in a consistent manner in accordance with accepted national guidelines and,ultimately,improve patient outcomes.It supports the CSA mission to reduce stroke burden in China. | Yongjun Wang Zixiao Li Yilong Wang Xingquan Zhao Liping Liu Xin Yang Caiyun Wang Hongqiu Gu Fuying Zhang Chunjuan Wang Ying Xian David Z Wang Qiang Dong Anding Xu Jizong Zhao Chinese Stroke Center Alliance investigators | 2018 | Stroke & Vascular Neurology2018，3，4： | 38 |
| 2 | Glacial distribution and mass balance in the Yarlung Zangbo River and its influence on lakes显示文摘Glaciers in the Yarlung Zangbo River witness severe glacial retreat nowadays,which gives important influence on lake processes in the region.We have studied glacial distribution,glacial mass balance and found large deficit in glacial mass and its impact in the region.Our study also integrated the variation in glacial-fed lakes of the Nam Co and Ranwu Lake,and presented an initial assessment of the impact of glacial mass balance on lakes.The study has shown a significant contribution of glacial melting to recent lake expansion and lake level rising. | YAO TanDong LI ZhiGuo YANG Wei GUO XueJun ZHU LiPing KANG ShiChang WU YanHong YU WuSheng | 2010 | Chinese Science Bulletin2010，55，20： | 34 |
| 3 | Preliminary research on Megalake Jilantai-Hetao in the arid areas of China during the Late Quaternary显示文摘我们识别了 geomorphological,在通过地调查并且通过地区性的遥感的分析的当前的 Jilantai 盐湖附近的高湖层次的沉积、生物的证据想象。在约 1060, 1050, 1044 和 1035 m a.s.l 的举起有四组海岸线,是在当前的盐湖上面的 37, 27, 21 和 12 m 分别地出现。沙和石子的沿岸的存款在在 1070 和 1080 m a.s.l 之间的举起被发现,比水流高的 47 ~ 57 m 腌湖表面,尽管 palaeoshoreline 地形仅仅在几个地点被保存。在 Herimuxini,在 Ulan Buh 荒芜的、典型湖的沉积和沙石子的北边缘上,沿岸的存款也发生在 1080 m a.s.l 并且在下面的举起。典型吐痰扩大的 A 11-km-long 从逐渐地在它的大拐弯上沿着黄河的南部的银行在一些沙石子石场从 1050 ~ 1035 m a.s.l 在举起减少的这条海岸线东方海岸线特征例如在水文学计量器车站和 Shilazhao 镇附近定位的那些,被识别。沿岸的存款 overlying 冲积的洪水的层在 Hangjin 在 Balagong 附近发生在沙石场县。也有沙滩岩石和沿岸的存款,沿着 Langshan-Yinshan 山的南部的山麓在几个地点在 cut-and-built 平台上保存。另外,揭示水下的三角洲沉积的侧面在 Wuhai 附近被识别,在黄河进入盆的地方。典型的湖沉积也在 Hetao 平原的东方结束在 Togtoh 站台存在。水的软体动物壳在沿岸的存款是普通的,包括 Corbicula 的几种,根值 lagotis, R。xauricularia 和 Gyraulus convexiusculus。Ostracode 壳能也在更好的沉积被识别。典型垂直 prograding 序列在湖的沉积很好被保存的露头是明显的。滚动波浪的卵石和沙滩岩石很通常在更高的举起在堤在侧面的顶上被保存。所有这些证据建议曾经有一个巨大的palaeo湖,用到达我们指的 ∼1080 m a.s.l 的最高的湖水平盖住 Jilantai 区域和 Hetao 平原的大多数部分巨大的 paleolake ,比现代的湖贝加尔湖大,作为“ Megalake Jilantai-Hetao ”. OSL 标明日期结果显示大湖以前形成了 ∼60 —50 ka,和在在 1060 和 1035 m a.s.l 之间的举起的四条海岸线多半从 ∼60 ∼50 ka 代表湖水平变化到早 Holocene。Megalake Jilantai-Hetao 的发现将多半影响黄河的发展的理解在期间晚第四级, Ulan Buh 和 Kubq 的进化抛弃,在这个区域的 neotectonism,并且可能地区性的气候的变化。 | CHEN FaHu FAN YuXin CHUN Xi D.B. MADSEN C.G. OVIATT ZHAO Hui YANG LiPing SUN Yang | 2008 | Chinese Science Bulletin2008，53，11： | 23 |
| 4 | An alternative therapy for drug-resistant epilepsy: transcutaneous auricular vagus nerve stimulation显示文摘 | Rong Peijing Liu Aihua Zhang Jianguo Wang Yuping Yang Anchao Li Liang Ben Hui Li Liping Liu Rupeng He Wei Liu Huanguang Huang Feng Li Xia Wu Peng Zhu Bing | 2014 | Chinese Medical Journal2014，，2： | 20 |
| 5 | Dynamics of Saline-alkali Land and Its Ecological Regionalization in Western Songnen Plain, China显示文摘As the important reserve land resources for food production,saline-alkali land should play a significant role to ensure the national food security in the context of global food crisis. The western Songnen Plain is one of main distribution regions of saline-alkali land in China,with great potential in agricultural development. In this study,the extent,transformation,spatial distribution and temporal change of saline-alkali land in the western Songnen Plain during 1954–2005 were investigated by using remote sensing and GIS spatial analysis methods. Saline-alkali land change was detected from a temporal series of topographic maps in 1954,satellite images of Landsat MSS in 1976,Landsat TM/ETM in 1988,2000 and 2005 through artificial visual interpretation. The results indicated a significant expansion in saline-alkali land area and aggravation in salinization. The area of saline-alkali land had increased from 401.48×103 ha in 1954 to 1 097.45×103 ha in 2005. While the ratio of light,moderate and serious salinized land areas changed from 6.72︰2.92︰1.00 to 1.25︰1.06︰1.00 in the study period. Grassland,cropland,swampland and water body were the major land use and land cover types from which saline-alkali land transformed. And the secondary salinization occured mainly in Da′an City,Tongyu County,Changling County,Daqing City,Dorbod Mongolian Autonomous County and Zhaoyuan County. Finally,seven large ecoregions and 14 corresponding sub-ecoregions were delineated out based on spatio-temopral dynamic characteristics of saline-alkali land and geo-relational environmental attributes. According to the results,measures of amelioration and ways of development of saline-alkali land in the western Songnen Plain were put forward. | YANG Jiuchun ZHANG Shuwen LI Ying BU Kun ZHANG Yubo CHANG Liping ZHANG Yangzhen | 2010 | Chinese Geographical Science2010，20，2： | 17 |
| 6 | Sedimentary documents and Optically Stimulated Luminescence (OSL) dating for formation of the present landform of the northern Ulan Buh Desert,northern China显示文摘GPR reflecting sections and core profiles revealed that sand dunes of the northern Ulan Buh Desert are overlying shallow lacustrine or palustrine sediments. Optical dating results of sediments from three core profiles indicate that the area of the northern Ulan Buh Desert was still covered by the shallow lake or marsh during 8.4-6.4 ka, and eolian sand started to accumulate since around 2 ka. Such a result supports the idea that the present desert landform of the northern Ulan Buh Desert started to form since 2 ka, which was likely a response to the desertification caused by ruin of the Han Dynasty and the large-scale abandonment of farming of the Han nationality. Our research results are consistent with the previous archaeological studies, and support the idea that the Ulan Buh Desert is composed of two parts with different histories, i.e., the old southern Ulan Buh Desert and the young northern Ulan Buh Desert. | Fan YuXin Chen FaHu Fan TianLai Zhao Hui Yang LiPing | 2010 | Science China Earth Sciences2010，53，11： | 15 |
| 7 | Optimal electroacupuncture frequency for maintaining astrocyte structural integrity in cerebral ischemia显示文摘The astrocyte is a critical regulator of neuronal survival after ischemic brain injury. Electroacupuncture may be an effective therapy for cerebral ischemia, as electroacupuncture frequency can affect the structural integrity of astrocytes. In this study, a rat model of middle cerebral artery occlusion established using the modified thread embolism method was treated with electroacupuncture of the bilateral Quchi (LI11) and Zusanli (ST36) at 15, 30, and 100 Hz frequencies. Behavioral testing, immunohistochemistry and electron microscopy were used to explore the effect of these electroacupuncture frequencies used on maintaining the structural integrity of ischemic brain tissue. Compared with the model and 100 Hz electroacupuncture groups, the 15 and 30 Hz electroacupuncture groups displayed decreased neurological deficit scores, as evaluated by the 'Longa' method, significantly increased glial fibrillary acidic protein expression, and alleviated ultrastructural damage of astrocytes at the edge of the infarct. Our experimental findings indicate that 15 and 30 Hz electroacupuncture intervention can favorably maintain the structural integrity of astrocytes and play a protective role in cerebral ischemic injury. Astrocyte structural integrity may be the mechanism underlying acupuncture production of ischemic tolerance. | Yicai Xiao Xingui Wu Xiangfa Deng Liping Huang Yuancheng Zhou Xuejie Yang | 2013 | Neural Regeneration Research2013，8，12： | 14 |
| 8 | Gully Erosion Regionalization of Black Soil Area in Northeastern China显示文摘Gully erosion is the frequent and main form of soil erosion in the black soil area of the northeastern China, which is one of the most important commodity grain production bases in China. It is encroaching upon the fertile farmland there. Regionalization of gully erosion can reveal the spatial distribution and regularity of the development of gully erosion. Based on the eco-geographical regional background features of the black soil area, this study combined the regionalization with influencing factors of the development of gully erosion. GIS spatial analysis, geostatistical analysis, spatial statistics, reclassification, debris polygon processing and map algebra methods were employed. As a result, the black soil area was divided into 12 subregions. The field survey data on type, length, volume and other characteristics indicators of gully erosion were used to calibrate the results. Then the features of every subregion, such as where the gully erosion is, how serious it is, and why it happens and develops, were expounded. The result is not only an essential prerequisite for gully erosion surveys and monitoring, but also an important basis for gully erosion prevention. | YANG Jiuchun ZHANG Shuwen CHANG Liping LI Fei LI Tianqi GAO Yan | 2017 | Chinese Geographical Science2017，27，1： | 13 |
| 9 | Effect of contrast-enhanced ultrasound on differential diagnosis of intrahepatic cholangiocarcinoma and arterial phase enhanced hepatic inflammatory lesions显示文摘Objective: To investigate differential diagnosis between intrahepatic cholangiocarcinoma(ICC) and arterial phase enhanced hepatic inflammatory lesions in patients without liver cirrhosis using contrast-enhanced ultrasound(CEUS).Methods: ICC and hepatic inflammatory lesions cases with CEUS and pathological diagnosis between Sep 2013 and Oct 2016 were investigated retrospectively. Imaging features of conventional ultrasound and CEUS were analyzed. The parameters of time intensity curve(TIC), including the arrival time, peak intensity(PI) in the lesions, the starting time for washout, and the intensity difference at 3 min(ΔI_3) after contrast agent infection between the lesion and the liver parenchyma, were compared between ICC and hepatic inflammatory lesions.Results: Twenty-five ICC and fifteen inflammatory patients were included in this study. Seventeen ICC(68.0%)and two inflammatory cases(13.3%) showed bile duct dilatation on conventional ultrasound. Using CEUS, three ICC cases(12.0%) were misdiagnosed as inflammatory lesions and three inflammatory lesions(20.0%) as ICC; two ICC(8.0%) and one inflammatory case(6.7%) could not be made definite diagnosis. Washout started at 34.5±3.5 s and 61.5±12.9 s for ICC and inflammatory lesions respectively(P<0.001). The intensity difference between lesion and liver parenchyma at 3 min after contrast agent injection was 10.8±3.1 dB in ICC and 4.2±2.3 dB in inflammatory group(P<0.001). The sensitivity and specificity differentiating ICC and inflammatory lesions were76% and 87% if the cut-off value of the intensity difference was 7.7 d B.Conclusions: Combined with TIC analysis, and particularly with the characteristic of the early-starting and obvious washout in ICC, CEUS can be useful in differential diagnosis between hepatic inflammatory lesions and ICC. | Shanshan Yin Qiuli Cui Kun Yan Wei Yang Wei Wu Liping Bao Minhua Chen | 2017 | Chinese Journal of Cancer Research2017，29，3： | 13 |
| 10 | Modelling operation parameters of UAV on spray effects at different growth stages of corns显示文摘Currently,unmanned aerial vehicles(UAVs)were widely applied to spray for pest and disease control.However,spray effect can be further improved by setting operation parameters more reasonably and scientifically.Therefore,this study attempts to derive the relationship between operation parameters and spray effect.Different growth stages were distinguished by various corn heights.A six-rotor UAV was operated at different heights and velocities to test pesticides spray effects for corns at different growth stages.Different plant canopy coverage rate and penetrating coefficients were obtained,according to which,the effects on droplet deposition rate caused by different UAVs’operation parameters were analyzed.Droplet penetrating coefficients were applied as indexes to evaluate and select UAVs operation parameters for corns at different growth stages respectively.Mathematical models of droplet penetrating coefficients with UAVs operation parameters were established for corns at all growth stages.The determination coefficients(R2)of all models were greater than 0.90 and average relative errors were within 20%,which asserted high forecasting accuracy of droplet penetrating rate.With the help of the models,parameters like operating height away from the bottom of corns and UAVs velocities were further analyzed,which guided the optimization of parameter settings and selection of spray methods for corns at different growth stages. | Zheng Yongjun Yang Shenghui Zhao Chunjiang Chen Liping Yubin Lan Tan Yu | 2017 | International Journal of Agricultural and Biological Engineering2017，10，3： | 13 |
| 11 | A point mutation resulting in a 13 bp deletion in the coding sequence of Cldf leads to a GA-deficient dwarf phenotype in watermelon显示文摘The dwarf architecture is an important and valuable agronomic trait in watermelon breeding and has the potential to increase fruit yield and reduce labor cost in crop cultivation.However,the molecular basis for dwarfism in watermelon remains largely unknown.In this study,a recessive dwarf allele(designated as Cldf(Citrullus lanatus dwarfism))was fine mapped in a 32.88 kb region on chromosome 09 using F2 segregation populations derived from reciprocal crossing of a normal line M08 and a dwarf line N21.Gene annotation of the corresponding region revealed that the Cla015407 gene encoding a gibberellin 3β-hydroxylase functions as the best possible candidate gene for Cldf.Sequence analysis showed that the fourth polymorphism site(a G to A point mutation)at the 3′AG splice receptor site of the intron leads to a 13 bp deletion in the coding sequence of Cldf in dwarf line N21 and thus results in a truncated protein lacking the conserved domain for binding 2-oxoglutarate.In addition,the dwarf phenotype of Cldf could be rescued by exogenous GA3 application.Phylogenetic analysis suggested that the small multigene family GA3ox(GA3 oxidase)in cucurbit species may originate from three ancient lineages in Cucurbitaceae.All these data support the conclusion that Cldf is a GA-deficient mutant,which together with the cosegregated marker can be used for breeding new dwarf cultivars. | Chunhua Wei Chunyu Zhu Liping Yang Wei Zhao Rongxue Ma Hao Li Yong Zhang Jianxiang Ma Jianqiang Yang Xian Zhang | 2019 | Horticulture Research2019，6，1： | 12 |
| 12 | Recent Progress in Dual-Polarization Radar Research and Applications in China显示文摘Dual-polarization(dual-pol)radar can measure additional parameters that provide more microphysical information of precipitation systems than those provided by conventional Doppler radar.The dual-pol parameters have been successfully utilized to investigate precipitation microphysics and improve radar quantitative precipitation estimation(QPE).The recent progress in dual-pol radar research and applications in China is summarized in four aspects.Firstly,the characteristics of several representative dual-pol radars are reviewed.Various approaches have been developed for radar data quality control,including calibration,attenuation correction,calculation of specific differential phase shift,and identification and removal of non-meteorological echoes.Using dual-pol radar measurements,the microphysical characteristics derived from raindrop size distribution retrieval,hydrometeor classification,and QPE is better understood in China.The limited number of studies in China that have sought to use dual-pol radar data to validate the microphysical parameterization and initialization of numerical models and assimilate dual-pol data into numerical models are summarized.The challenges of applying dual-pol data in numerical models and emerging technologies that may make significant impacts on the field of radar meteorology are discussed. | Kun ZHAO Hao HUANG Mingjun WANG Wen-Chau LEE Gang CHEN Long WEN Jing WEN Guifu ZHANG Ming XUE Zhengwei YANG Liping LIU Chong WU Zhiqun HU Sheng CHEN | 2019 | Advances in Atmospheric Sciences2019，36，9： | 12 |
| 13 | RVFL-Based Optical Fiber Intrusion Signal Recognition With Multi-Level Wavelet Decomposition as Feature显示文摘光纤维警告前系统(OFPS ) 逐渐地为监视的管道安全被看作了重要工具之一。侵入信号类型正确地被识别它能减少解决和管道的维护的费用。大多数在 OFPS 的以前的特征抽取方法通常从时间领域的看法被寻找。在一些情况中,然而,在时间领域没有区分的特征。在第一,侵入信号跑展示的纸,挖,并且精选鹤嘴锄被多水平小浪分解在频率领域提取,也就是说,侵入信号被分解成五个乐队。第二,不同频率乐队的平均精力比率被获得,它被看作每种侵入类型的特征。最后,特征样品被送到随机的向量功能连接(RVFL ) 为训练完成信号的分类和鉴定联网。试验性的结果证明算法罐头正确地区分不同侵入信号并且完成更高的识别率。 | Yanping WANG Dianjun GONG Liping PANG Dan YANG | 2018 | Photonic Sensors2018，8，3： | 11 |
| 14 | Effectiveness and safety of moxibustion in treatment of lumbar disc herniation: a systematic review and Meta-analysis显示文摘OBJECTIVE: To evaluate the effectiveness and safety of moxibustion therapy in the treatment of lumbar disc herniation (LDH). METHODS: Four Chinese databases and three English databases were searched from their inception to April 2018.Randomized controlled trials (RCTs) were included if moxibustion was used as the sole treatment or as a part of combination therapy with other treatments in patients with LDH. Two reviewers independently extracted the data and assessed the methodological quality using the Cochrane criteria for the risk of bias. The Meta-analysis was performed using Review Manager 5.3 software. RESULTS: In total, 16 RCTs including 1186 patients with LDH were analyzed. The Meta-analysis showed favorable effects of moxibustion in combination with massage therapy on the visual analog scale score compared with massage therapy alone [mean difference (MD)=? 1.32, 95% confidence interval (CI)(? 2.12,? 0.51), P = 0.001]. The subgroup Meta-analysis failed to show favorable effects of electro-acupuncture plus moxibustion on the efficacy rate compared with electro-acupuncture alone [relative risk (RR)= 1.06, 95% CI (0.98, 1.14), P = 0.15]. However, acupuncture or massage therapy plus moxibustion improved the efficacy rates compared with acupuncture or massage therapy alone [RR = 1.33, 95% CI (1.18, 1.49), P < 0.000 01][χ^2 = 2.76, P = 0.25, I2 = 27%],[RR = 1.15, 95% CI (1.06, 1.25), P = 0.001][χ^2 = 0.00, P = 0.95, I2 = 0%]. With respect to the Japanese Orthopaedic Association (JOA) scores, acupuncture or massage therapy in addition to moxibustion produced results different from those of acupuncture or massage therapy alone [MD = 5.58, 95% CI (4.15, 7.00), P < 0.000 01][χ^2 = 0.58, P = 0.45, I2 = 0%],[MD = 3.61, 95% CI (3.01, 4.21), P < 0.000 01]. There were no significant differences in the JOA score for subjective symptoms, objective symptoms, daily living ability, and other parameters. In six RCTs, no adverse reactions occurred during moxibustion. CONCLUSION: Whether moxibustion is an effective intervention for LDH is unclear because of the small sample size of qualified RCTs and the high risk of bias. More high-quality RCTs that overcome the methodological shortcomings of the existing evidence are needed. | Wang Yang Zhang Huiling Xia Liping Sun Zhiling Xu Xiao Du Shizheng | 2019 | Journal of Traditional Chinese Medicine2019，39，5： | 11 |
| 15 | Endovascular treatment with or without intravenous alteplase for acute ischaemic stroke due to basilar artery occlusion显示文摘Background and purpose It remains controversial if endovascular treatment(EVT)can improve the outcome of patients with acute basilar artery occlusion(BAO).This study aims to compare the functional outcomes between EVT with and without intravenous thrombolysis(IVT)first in patients who had acute ischaemic stroke(AIS)due to BAO.Methods Patients who had AIS with BAO who underwent EVT within 24 hours of onset were enrolled in this multicentre cohort study,and the efficacy and safety were compared between IVT+EVT and direct EVT.The primary outcome was 90-day functional independence.All outcomes were assessed with adjusted OR(aOR)from the multivariable logistic regression.In addition,a meta-analysis was performed on all recently published pivotal studies on functional independence after EVT in patients with BAO.Results Of 310 enrolled patients with BAO,241(78%)were treated with direct EVT and 69(22%)with IVT+EVT.Direct EVT was associated with a worse functional outcome(aOR,0.46(95%CI 0.24 to 0.85),p=0.01).IVT+EVT was associated with a lower percentage of patients who needed≥3 passes of stent retriever(10.14%vs 20.75%).The meta-analysis regression revealed a potential positive correlation between bridging with IVT first and functional independence(r=0.14(95%CI 0.05 to 0.24),p<0.01).Conclusions This study showed that compared with direct EVT,EVT with IVT first was associated with better functional outcomes in patients with BAO treated within 24 hours of onset.The meta-analysis demonstrated similar favourable efficacy of IVT first followed by EVT in patients with BAO. | Ximing Nie David Wang Yuehua Pu Yufei Wei Qixuan Lu Hongyi Yan Xin Liu Lina Zheng Jingyi Liu Xinxuan Yang Yarong Ding Dacheng Liu Wanying Duan Zhe Zhang Zhonghua Yang Miao Wen Weibin Gu Xinyi Hou Xinyi Leng Yuesong Pan Zhongrong Miao Liping Liu | 2022 | Stroke & Vascular Neurology2022，7，3： | 10 |
| 16 | Remote Sensing Monitoring of Gullies on a Regional Scale: A Case Study of Kebai Region in Heilongjiang Province, China显示文摘Gully erosion is one of the major causes of land degradation in most areas and attracts increasing attention from researchers. We monitored gullies in the Kebai region in Heilongjiang Province of China by using remote sensing data and found that gully density increased with the increase in slope when the slope was less than 3°. Gully density in sunny slopes or windward slopes was greater than in shady slopes or leeward slopes because of the impacts of freezing and thawing, wind and solar radiation. Specifically, the gully density in northeast slope was the greatest and in southwest was the smallest. Gully density was reduced with increasing slope length and the longer the slope length, the less the gully density changed between 1965 and 2005. Affected by runoff, gullies most easily to occur in concave slopes and the critical elevation for gully erosion was 250–275 m. Moreover, hilly regions had the greatest gully density, followed by tableland regions, whereas the gully density in flatlands was the lowest. However, the gully density of these three types of landforms all increased between 1945 and 2000, and the portion of increase was 57.45%(hill), 52.91%(mesa) and 25.32%(plain), respectively. | ZHANG Shuwen LI Fei LI Tianqi YANG Jiuchun BU Kun CHANG Liping WANG Wenjuan YAN Yechao | 2015 | Chinese Geographical Science2015，25，5： | 10 |
| 17 | Land-surface processes and summer-cloud-precipitation characteristics in the Tibetan Plateau and their effects on downstream weather:a review and perspective显示文摘Correct understanding of the land-surface processes and cloud-precipitation processes in the Tibetan Plateau(TP)is an important prerequisite for the study and forecast of the downstream activities of weather systems and one of the key points for understanding the global atmospheric movement.In order to show the achievements that have been made,this paper reviews the progress on the observations for the atmospheric boundary layer,land-surface heat fluxes,cloud-precipitation distributions and vertical structures by using ground-and space-based multiplatform,multisensor instruments and the effect of the cloud system in the TP on the downstream weather.The results show that the form drag related to the topography,land-atmosphere momentum and scalar fluxes is an important part of the parameterization process.The sensible heat flux decreased especially in the central and northern TP caused by the decrease in wind speeds and the differences in the ground-air temperatures.Observations show that the cloud and precipitation over the TP have a strong diurnal variation.Studies also show the compressed-air column in the troposphere by the higher-altitude terrain of the TP makes particles inside clouds vary at a shorter distance in the vertical direction than those in the non-plateau area so that precipitation intensity over the TP is usually small with short duration,and the vertical structure of the convective precipitation over the TP is obviously different from that in other regions.In addition,the influence of the TP on severe weather downstream is preliminarily understood from the mechanism.It is necessary to use model simulations and observation techniques to reveal the difference between cloud precipitation in the TP and non-plateau areas in order to understand the cloud microphysical parameters over the TP and the processes of the land boundary layer affecting cloud,precipitation and weather in the downstream regions. | Yunfei Fu Yaoming Ma Lei Zhong Yuanjian Yang Xueliang Guo Chenghai Wang Xiaofeng Xu Kun Yang Xiangde Xu Liping Liu Guangzhou Fan Yueqing Li Donghai Wang | 2020 | National Science Review2020，7，3： | 10 |
| 18 | A review of historical reconstruction methods of land use/land cover显示文摘理解长期的人环境的相互作用要求过去的陆地使用和陆地封面变化的历史的重建。大多数重建从历史的来源首先基于一致地可得到、相对标准化的信息。基于可得到的数据来源和回顾的研究,在我们考察的这篇论文数字重建和分析的途径和方法他们在下列方面的优点和可能的限制:(1 ) 历史的文件关于过去的陆地使用包含质或半量的信息,它通常也包括档案的文件的陆地封面数据,而是准备是很费时间的。(2 ) 历史的地图和图画为视觉、空间的量的陆地封面提供信息。(3 ) 自然档案为经过植被重建作为一个方法有重要优点并且当历史的记录失踪或缺乏时,特别有它的唯一的可能性,但是它有重建某些陆地封面类型的大限制。(4 ) 历史的重建模型逐渐地从实验模型被开发了到机械学的。方法做不仅重建在历史的时期的陆地使用 / 盖住的数量,但是它也复制空间分发。然而仍然有有高空间的分辨率的很少历史的陆地封面数据集。(5 ) 重建方法能从多重观点基于多重来源的数据和多学科的研究造历史的陆地封面,补充失踪的数据,验证重建结果并且因此改进重建精确性。然而,有挑战,仍然在探索阶段做方法。这个方法能是为历史的陆地封面重建的一个长期的发展目标。研究人员们应该集中于由开发新模型与高空间的分辨率重建历史的陆地封面数据集以便学习结果能有效地在气候、生态的效果的模拟被使用。 | YANG Yuanyuan ZHANG Shuwen YANG Jiuchun CHANG Liping BU Kun XING Xiaoshi | 2014 | Journal of Geographical Sciences2014，24，4： | 9 |
| 19 | In-situ lunar dust deposition amount induced by lander landing in Chang’E-3 mission显示文摘China first in-situ lunar dust experiment is performed by a lunar dust detector in Chang’E-3 mission. The existed dust(less than 20 μm in diameter) properties, such as levitation, transportation and adhesion, are critical constraints for future lunar exploration program and even manned lunar exploration. Based on the problems discussed above, the in-situ lunar dust detector is originally designed to characterize dust deposition properties induced by lander landing as a function of environmental temperature, solar incident angle and orbit short circuit current on the northern Mare Imbrium, aiming to study lunar dust deposition properties induced by lander landing in depth. This paper begins with a brief of introduction of Chang’E-3 lunar dust detector design,followed by a series of experimental analysis of this instrument under different influencing factors, and concludes with lunar dust mass density deposition amount observed on the first lunar day is about 0.83 mg/cm^2, which is less than that observed in Apollo 11 mission because the landing site of Chang’E-3 has the youngest mare basalts comparing with previous Apollo and lunar landing sites. The young geologic environment is less weathered and thus it has thinner layer of lunar dust than Apollo missions’;hence, the amount of kicked-up lunar dust in Chang’E-3 mission is less than that in Apollo 11 mission. | ZHANG HaiYan WANG Yi CHEN LiPing ZHANG He LI CunHui ZHUANG JianHong LI DeTian WANG YongJun YANG ShengSheng LI XiongYao WANG WeiDong | 2020 | Science China(Technological Sciences)2020，63，3： | 9 |
| 20 | Endovascular therapy for Acute ischemic Stroke Trial (EAST): study protocol for a prospective, multicentre control trial in China显示文摘Background and purpose:5 recent trials have shown the benefit of endovascular treatment for acute ischaemic stroke(AIS)due to large vessel occlusion of the anterior circulation.This study aims to evaluate the safety and efficacy of Solitaire thrombectomy in patients with moderate-to-severe stroke in the Chinese population,which has a high prevalence of intracranial atherosclerosis.Methods and analysis:This multicentre prospective control study will involve 17 stroke centres in China,and plans to recruit 150 patients in the intervention group,and 150 patients in the medical group,in which patients meet enrolment criteria but refuse intervention.Patients with AIS due to large vessel occlusion indicated for treatment with Solitaire stent retriever within 12 hours of symptom onset,and who meet the inclusion and exclusion criteria,will be enrolled in this study.The primary efficacy endpoint is functional independence as defined by a modified Rankin Scale(mRS)score≤2 at 90 days or by functional improvement as defined by mRS,using shift analysis.The procedural efficacy endpoint is arterial recanalisation of the occluded target vessel measured by a modified Thrombolysis in Cerebral Infarction(mTICI)score equal or superior to 2b right following the use of the study device.The primary safety endpoint is symptomatic intracranial haemorrhage(sICH)within 24±3 hours postprocedure.Ethics and dissemination:The protocol was approved by the Ethics Committee at the coordinating centre and by the local Institutional Review Board of each participating centre.Trial registration number:NCT02350283. | Zhongrong Miao Xiaochuan Huo Feng Gao Xiaoling Liao Chunjuan Wang Ya Peng Yibin Cao Shengli Chen Meng Zhang Changchun Jiang Xiaoxiang Peng Cunfeng Song Liping Wei Qiyi Zhu Zaiyu Guo Li Liu Hang Lin Hua Yang Wei Wu Hui Liang Anding Xu Kangning Chen Xingquan Zhao Yuesong Pan Hao Li Liping Liu Yilong Wang Yongjun Wang EAST investigators | 2016 | Stroke & Vascular Neurology2016，1，2： | 8 |
您所在的机构暂未开通此部分的功能，请联系管理员