Results 11 to 20 of about 9,186 (162)
Abstract Groundwater is a vital resource under threat in island communities. Karainagar, a 22 km2 island, is one of seven islands off the coast of Jaffna in Northern Sri Lanka, with its population of just about 11,000 persons, experiences seasonal water shortage, and salinity in groundwater as twin threats impacting on their lives.
Inthirakumaran Karthiga +3 more
wiley +1 more source
ABSTRACT Objective A favorable postnatal prognosis in cases of pulmonary atresia/critical stenosis with intact ventricular septum (PA/CS‐IVS) is generally equated with the possibility of achieving biventricular (BV) repair. Identification of fetuses that will have postnatal univentricular (UV) circulation is key for prenatal counseling, optimization of
C. Villalaín +9 more
wiley +1 more source
ABSTRACT Photocatalytic molecular oxygen (O2) activation provides a sustainable approach to produce singlet oxygen (1O2) for organic contaminants detoxification. However, the charge carriers‐involved pathway usually suffers from unsatisfactory 1O2 production efficiency owing to energy loss caused by photogenerated hole‐mediated superoxide species (•O2−
Yan‐Biao Shi +8 more
wiley +1 more source
Engineering 2D Materials for High‐Current‐Density Electrocatalytic Water Splitting
ABSTRACT Water electrolysis is a key method for sustainable hydrogen production, using water as an abundant resource. However, efficient and stable operation at high current densities remains challenging due to energy losses, catalyst degradation, and limited ion–electron transport.
Tianqi Guan +8 more
wiley +1 more source
A modeling study of hypoxia in the bottom layers off the Changjiang Estuary in summer [PDF]
近几十年来,受人类活动影响,大量有机污染物和营养物质经河流排放到长江口及其近岸海域,造成水体富营养化日益严重,致使长江口外近岸底层水体缺氧现象也呈不断上升趋势。长江口底层水体缺氧的形成是个复杂的过程,是物理过程和生化过程综合作用的结果。物理过程主要控制着溶解氧的水平和垂直输运,生化过程控制着溶解氧的产生和消耗。 近年来已有许多学者研究长江口水体缺氧现象,但目前针对该区域缺氧的研究主要局限于定性的观测分析。为了更好研究长江口水体缺氧的形成机制,本文应用一个三维水动力¬-生态耦合模式 ...
郑静静
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Effects of Different Micro Rainwater Harvesting Measures on Safflower Growth [PDF]
[Objective] The cultivation of safflower with micro rainwater harvesting technology on the hillslopes of the temperate desert grassland in Yili Valley was evaluated in order to provide technical support for dryland cultivation of safflower and for ...
Hu Guiqing +3 more
core +1 more source
Temporal and spatial variation of Zhe-Min Coastal Water in the Taiwan Strait in winter and spring [PDF]
台湾海峡是沟通东海与南海的唯一通道,也是我国南、北海运的重要航道。浙闽沿岸水是台湾海峡西侧主要流系,也是我国东南沿海环流系统的重要组成部分,它与海峡暖流水在季风控制下彼此消长,对海峡的环流结构、水团组成和海 洋生态等有着相当重要的影响。 本文主要利用1981年至2016年间不同时间段的AVHRR、MODIS遥感海表温度时序列数据,以温度阈值法和温度空间距平法为基础建立了台湾海峡浙闽沿岸水的表征方式,并分别定义其影响范围及强度指数。分析了自上个世纪八十年代以来冬、春季台湾海峡浙闽沿岸水的时空变动特征 ...
黄妍
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Dynamic Monitoring of Soil and Water Loss at Wuding River Basin, a Typical Tributary of Middle Reaches of Yellow River [PDF]
[Objective] The distribution and dynamic characteristics of soil and water loss at Wuding River, a typical coarse sediment tributary in the middle reaches of the Yellow River, were analyzed in order to provide a scientific basis for soil and water ...
Zhang Dong, Zhao Hui, Zhao Yuan
core +1 more source
ABSTRACT The high accuracy in surface‐enhanced Raman scattering‐lateral flow immunoassays (SERS–LFIAs) is critical for reliable point‐of‐care testing (POCT) in clinical diagnostics. Conventional approaches are often affected by sampling variability and uneven distribution of immunoprobes, leading to unreliable signal fluctuations.
Shuai Zhao +9 more
wiley +1 more source
Long-Term Trends of Macrobenthos in Southern Bohai Sea, China, in Relation toEnvironmental Changes [PDF]
根据50多年来渤海南部海域大型底栖动物群落的历史资料,以及2011~2013年的现场调查数据,从渤海南部包括黄河口邻近海域及莱州湾大型底栖动物群落结构变化特征出发,分析了其长期演变的过程和规律,旨在阐明底栖动物群落的演变趋势,识别其重要的演变时段.并结合50年来渤海南部海域相关底栖环境因子的变化特征,探讨底栖动物群落的演变原因.过去50余年来,渤海南部海域大型底栖动物群落在物种数、生物量、丰度以及群落结构组成等方面都发生了较大的变动,具体表现为寿命长、体积大、具有高竞争力的K对策种的优势地位正逐渐丧失 ...
周政权 +5 more
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