|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Long-term surface water changes and driving cause in Xiong'an,China:from dense Landsat time series images and synthetic analysis显示文摘China's government statement recently reported the plan of constructing Xiong'an New Area, which aims to phase out some extra capital functions from Beijing and to explore an innovative urban development mode with the priority in eco-environmental protection. The New Area is located in the semi-arid North China Plain(NCP) and is home to NCP's largest natural freshwater wetland, Baiyangdian Lake. A comprehensive realization of surface water dynamics would be crucial for policy-makers to outline a sustainable environment development strategy for New Area. In this study, we used a total of 245 time slices of cloud-free Landsat images to document the continuous changes of water bodies within Xiong'an City during 1984-2016 and to provide detailed evidence of water presence and persistency states and changes under the influences of climate change and human actions. Our results reveal that the New Area water body areas varied dramatically during the past 33 years, ranging from 0.44 km^2 in April 1988 to317.85 km^2 in February 1989. The change of surface water area was not characterized by a monotonically decreasing tendency. The evolution processes can be divided into four sub-stages: the first extreme desiccation in mid-1980 s, the wet stage with the most extensive inundation areas and strong inter-annual fluctuations from late-1988 to late 1999, another desiccation stage in early 2000 s, and the overall recovering stage between 2007 and 2016. We also mapped the maximum water inundation extents and frequencies of all-season, pre-wet season(February-May) and post-wet season(September-December) for the 33 years and different sub-periods. Although there is good agreement between time series of surface water area evolution in the New Area and station-based precipitation and evaporation variations, multiple lines of evidences reviewed in previous research indicate that the degraded Baiyangdian Lake was also tightly associated with human activities from various aspects, including dam construction, groundwater extraction, agricultural irrigation, etc. We highlighted the current status of exploring the driving mechanism of surface water changes and existing problems, and then offer recommendations. | Chunqiao Song Linghong Ke Hang Pan Shengan Zhan Kai Liu Ronghua Ma | 2018 | Science Bulletin2018，63，11： | 6 |
| 2 | Synthesis and modification of well-ordered layered cathode oxide LiNi_(2/3)Mn_(1/3)O_2显示文摘Oxalic-acid-based co-precipitation method was employed to prepare LiNi2/3Mn1/3O2 sample with a high-ordered structure. Li+,Ni2+ and Mn2+ acetates were used as starting materials. The influence of the amount of lithium source in the starting materials on Li+ content,disorder of Li+-Ni2+ ions,and electrochemical performance has been investigated. Rietveld refinement shows that the sample prepared with 20% excess Li-source in the starting materials exhibits a perfect ordered structure. A specific discharge capacity is as high as 172 mAh/g at C/20 in the voltage range of 4.35?2.7 V. However,the cyclability is not satisfactory:about 25.3% fade in capacity was observed over 50 cycles. Chemically stable SiO2 was coated on the surface of LiNi2/3Mn1/3O2 particles. A significant improvement in cyclability was attained with 3 wt% SiO2 coating,which is ascribable to the protection of LiNi2/3Mn1/3O2 particles from being dissolved into the electrolyte. | XIONG XiaoQin JIANG Yan XIA ShengAn ZHANG WuXing Yuan LiXia LIU ShanTang HUANG YunHui | 2010 | Chinese Science Bulletin2010，55，30： | 5 |
| 3 | Diurnal wind and nonlinear interaction between inertial and tidal currents in the South China Sea during the passage of Typhoon Conson显示文摘Diurnal wind(DW) and nonlinear interaction between inertial and tidal currents near the Xisha Islands of the South China Sea(SCS) during the passage of Typhoon Conson(2010) are investigated using observational data and a damped slab model. It is found that the DWs, which are dominated by clockwise wind components, are prominent at our observational site. The DWs increase after the passage of the typhoon from 1 to about 4 m/s, which may be due to the decrease of the sea surface temperature caused by the passage of the typhoon. Kinetic energy spectra and bicoherence methods reveal nonlinear interactions between the inertial currents and the 2MK3 tidal constituent at our observational site. The slab damped model reproduces the inertial currents successfully induced by the total observed winds, and it is shown that the inertial currents induced by DWs are positively proportional to the DWs speed. Even though the observed inertial currents are distinct, the proportion of inertial currents induced by DWs to those induced by the total observed winds is just 0.7%/4% before/after the passage of typhoon. This shows that the inertial currents induced by the DWs are unimportant near the Xisha Islands during the typhoon season. | LIU Junliang CAI Shuqun WANG Shengan | 2014 | Acta Oceanologica Sinica2014，33，5： | 4 |
| 4 | 基于DEM数据的巴丹吉林沙漠沙丘分布规律及其形态参数显示文摘沙丘形态特征是风沙地貌研究的重要内容。数字高程模型(DEM)因卓越的三维地形表达能力被广泛应用于沙丘形态研究中。长期以来,受交通条件和研究方法的制约以及高大沙山分布位置的限定,对巴丹吉林沙漠沙丘形态的研究主要集中在沙漠东南部,缺乏对整个沙漠沙丘分布规律及其形态参数特征的系统认知。而对整个沙漠沙丘形态特征的研究,是区域风沙地貌形成与演化研究的重要组成部分。以巴丹吉林沙漠内所有独立沙丘为研究对象,利用研究区DEM数据和一种新的算法,研究了沙漠内两种主要类型沙丘(横向沙丘、星状沙丘)的分布规律及其形态参数特征。结果表明:沙漠内独立沙丘大约有6 033座,高度9~433 m,高度超过350 m的巨型沙山共有53座,其中星状沙山7座,最大高度383 m;横向沙山46座,最大高度433 m。横向沙丘高度与等效沙丘厚度呈正相关的线性函数关系,星状沙丘高度与等效沙丘厚度呈正相关的对数函数关系,表明在现代气候和环境条件下,横向沙丘高度仍在增加,而星状沙丘高度增长已经趋缓。两类沙丘的主轴向大都垂直于研究区主风向NWSE。横向沙丘起沙风风向单一,沙丘轴向集中在NE-SW和NNE-SSW方向;星状沙丘起沙风风向略为复杂,沙丘存在多个次级轴向。 | 汪克奇 赵晖 Sheng Yongwei Zhang Shengan 王兴繁 杨宏宇 晁倩 | 2020 | 中国沙漠2020，40，4： | 4 |
| 5 | Blue light-induced rare-earth free phosphors for the highly sensitive and selective imaging of latent fingerprints based on enhanced hydrophobic interaction显示文摘The demand for in-situ detection of latent fingerprints(LFPs)in ways of high sensitivity,high selectivity,high contrast,low cost and user-friendly is still urgent.To overcome this challenge,a moisture-stable,red-emitting fluoride phosphor K_(3)AlF_(6):Mn^(4+)(KAF:Mn^(4+))with an organic hydrophobic skin was prepared.The phosphor has a uniform and superfine morphology with excellent luminescence properties.More importantly,this non-ultraviolet(UV)or non-near infrared(NIR)induced phosphor was proved to be an ideal fluorescent label for LFP imaging,which is both friendly for touch DNA analysis and compatible to forensic light sources.The well-defined ridge details with little background interference on various surfaces were presented by the oleic acid(OA)modified KAF:Mn^(4+)(KAF:Mn^(4+)-OA)phosphor in few seconds using the powder dusting method.To confirm the high selectivity of KAF:Mn^(4+)-OA for LFP imaging,an efficient quantitative evaluation method is proposed with the aid of ImageJ&Origin software.Due to the superiority of the Mn^(4+)-doped fluoride for the rapid imaging of LFPs in terms of lowcost,high compatibility and good availability,it is expected to be a promising candidate for forensic science as well as fluorescence imaging in other fields instead of rare earth luminescent materials. | Di Peng Shengan He Yuyan Zhang Liqin Yao Wendong Nie Zhijian Liao Wenting Cai Xinyu Ye | 2022 | Journal of Materiomics2022，8，1： | 2 |
| 6 | 4-(Trifluoromethyl)-benzonitrile: A novel electrolyte additive for lithium nickel manganese oxide cathode of high voltage lithium ion battery显示文摘 | Wenna Huang Lidan Xing Yating Wang Mengqing Xu Weishan Li Fengchao Xie Shengan Xia | 2014 | Journal of Power Sources2014，，： | 1 |
| 7 | Model study of the upper circulation in the Sulu Sea and its relation to the South China Sea circulation显示文摘According to the satellite remote sensing monthly mean sea surface temperature data from 1998 to 2002, it is shown that, the Sulu Sea is dominated by a cold eddy both in summer and winter. A coupled single-layer/two-layer model is employed here to study the summery and wintry characteristics and dynamic mechanism of the upper circulation in the Sulu Sea. According to the numerical experiments, it is found that, due to the local monsoon stress curl, the upper circulation in the Sulu Sea is dominated by a weak anticyclonic eddy in summer and a strong cyclonic eddy in winter. Once there is a large outflow via the Sibutu Passage flowing out of the Sulu Sea in summer, the upper circulation in the Sulu Sea may be dominated by a cyclonic eddy instead of the normal anticyclonic one. Moreover, in summer, the water exchange between the Sulu Sea and South China Sea via the Mindoro and Balabac Straits might have some effect on the separation position and strength of the northward western boundary current next to the Indo-China Peninsula in the southern South China Sea. | CAI Shuqun HE Yinghui LONG Xiaomin WANG Shengan | 2008 | Acta Oceanologica Sinica2008，27，z1： | 1 |
| 8 | Finite Groups with Character Degrees of Two Distinct Primes显示文摘It is proved that if the degree of any non-linear irreducible character of a finite group G is a product of powers of two given distinct prime integers p and q, then G has an abelian Hall {p, q}-subgroup H and an Abelian normal {p, q}-complement A, and the centralizer in A of the Sylow p-subgroup of G is equal to the centralizer in A of the Sylow q-subgroup of G. | CHEN Shengan FAN Yun SHUM Karpin | 2006 | Wuhan University Journal of Natural Sciences2006，11，2： | 1 |
| 9 | Turbulent film con- densation on a non-isothermal horizontal tube-effect of eddy diffusivity显示文摘 | YANG Shengan LIN Yanting | 2005 | Applied Mathematical Modelling2005，29，12： | 1 |
| 10 | Free and forced con- vection film condensation from a horizontal elliptic tube with a vertical plate and horizontal tube as spe-cial cases显示文摘 | YANG Shengan HSU Chaoho | 1997 | Int J Heat and Fluid Flow1997，，18： | 1 |
| 11 | A Review of Al Alloy Anodes for Al-Air Batteries in Neutral and Alkaline Aqueous Electrolytes显示文摘Aluminum-air(Al-air) batteries are promising candidates for energy storage applications because of their high theoretical energy density and low cost.Nevertheless,their developments have been severely hindered by multiple obstacles,among which the activation and self-corrosion inhibition of Al anode have been considered to be significant challenges.In neutral electrolytes,the main problem is the activation of Al anode,while the self-corrosion of Al anode becomes dominant in alkaline electrolytes.Considerable efforts have been devoted to overcoming the dilemma associated with the Al anode.This review firstly underscores the underlying mechanisms of passivation and self-corrosion of Al anode in different electrolytes.Then,specific attentions are paid to Al alloy anode,including the role of various elements and standard processing technology.Finally,general conclusions,current limitations,and future perspectives on Al alloy anode are presented. | Pengfei Wu Shengan Wu Dan Sun Yougen Tang Haiyan Wang | 2021 | Acta Metallurgica Sinica(English Letters)2021，34，3： | 1 |
| 12 | A model study of the summer southeast Vietnam Offshore Current in the southern South China Sea显示文摘 | Cai Shuqun Long Xiaomin Wang Shengan | 2007 | Continental Shelf Research2007，27，： | 1 |
| 13 | Roanu台风中突然天气变化的自动气象站资料评估(英文)显示文摘以斯里兰卡南部5.936 108°N、80.574 900°E处的自动气象站(AWS)的气象时间序列观测数据为依据,对2015年12月至2016年10月大气边界层的变化进行了定量分析.结果表明,印度洋北部的季风、气温、气压、相对湿度、降水和向下短波辐射的扰动随着季风的逆转而变化.2016年5月台风Roanu经过时,气压降低、相对湿度增大、降水增强和向下短波辐射减小,其特征是温度、相对湿度、降水和风速均迅速增加,之后气温和降水下降,而气压、向下短波辐射在急剧减小之后又急剧增大.自动气象站记录了台风到达前的气象条件,并自2016年5月13日起各个参数开始响应台风变化.从2016年5月28日开始,自动气象站记录台风通过后的气象条件,此时降水和向下辐射均减少.这些信号说明应用自动气象站可以持续观测台风条件.这项研究表明,斯里兰卡南部地区的气象数据可以用来进行天气评估,并可以对南部沿海地区的海气关系现象进行分析.此外,自动气象站的现场数据可以用作模型验证和参数化. | Charith Madusanka WIDANAGE 王东晓 周峰华 Tilak P.D.GAMAGE Shengan WANG WICKRAMAGE C.H. GEEGANA GAMAGE G.R.G. 黎大宁 | 2018 | 南京信息工程大学学报(自然科学版)2018，10，3： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员