Results 31 to 40 of about 14,849 (205)
水电水利, 2020 水文地质条件作为影响工程地质的重要影响因素,不仅会影响工程建设的选点,还会对工程的环境效益评价带来一定的影响。因此,一定在开展工程设计期间,一定要对水文地质环境进行严格的勘察,运用合理的处理手段来为施工质量提供有效的质量保证。本文立足于水文地质环境勘察中具体的应用实践展开分析,为提高工程质量提供了切实可行的参考。
柱和 王
semanticscholar +1 more source
Rare Metals, EarlyView.ABSTRACT Porous NiTi alloys are widely used in biomedical and engineering fields. Using the PBF‐LB technique, the TPMS and Voronoi porous parts with a porosity of ∼67% and a minimum feature size of 0.15 ± 0.02 mm were fabricated. Although the bulk sample fabricated with the same parameters is defect‐free, μ‐CT reconstruction on the porous sample ...
Wen‐Hao Zeng +7 more
wiley +1 more source
Dynamic Linkage between Land-use and Water Quality in the Potomac River Basin and Its Management Implications [PDF]
, 2017 流域是一个具有特定结构和功能、相对独立完整的自然资源-生态环境-人类社会的复杂系统，承载了区域经济发展所需要的空间。人类及其他生物以其生活的流域作为物质依托，从中获取水、食物等物质资源和生活、娱乐、发展活动的空间资源。然而在社会经济高速发展的背景下，作为人类重要物质与空间依托的流域，其环境遭受来自各方面的多重影响因子的共同作用，其中以河流水质为主，正面临着日渐退化的趋势，因而保护人们赖以生存的环境迫在眉睫。很多人为因素包括城市化、农业活动、产业、污水排放都是影响河流水质的流域土地利用 ...
卞京
core
Soil Hydrothermal Characteristics of Orchard Based on Leaf Area Index Coupled with STEMMUS Model [PDF]
[Objective] As a key parameter in the simulation study of ecosystem water cycle process, rapid dynamic simulation of leaf area index (LAI) can solve the limitation that the coupled soil water-vapor-heat-air model STEMMUS (simultaneous transfer of energy,
GAO Xiaodong +3 more
core +1 more source
, 2020 GPS-RTK 技术作为一种先进的工程测量方式，不但定位精度较高，而且使用流程简单，能实现数字化成图等优势，具有较高的应用性。论文主要讲述了 GPS-RTK 技术在水利工程测量的中具体应用，旨在进一步提升 GPS-RTK 技术应用效果，提升中国工程测量的精确度，促进中国工程测量行业的稳定发展。
王 惠霞
semanticscholar +1 more source
水电水利, 2020 水文水资源监测工作的有效实施可以在最大程度上促进防灾减灾工作的有效进行,加强水文监测工作管理,加大水文监测现代化技术的应用,提高水文监测工作技术水平,完善水文监测预报方案,提高预报的精准度,可以最大程度上减少自然灾害造成的损失,有利于我国社会经济的可持续性发展,更有利于我国和谐社会的构建。因此保障水文监测环境,加快水文监测现代化技术应用,加强水文监测站网建设对于防洪减灾工作有着重要作用。基于此,文章就水文监测工作与防洪减灾进行简要的分析。
武成 王
semanticscholar +1 more source
Rare Metals, EarlyView.ABSTRACT Rare earth elements (REEs) play an irreplaceable role in modern technology and industry. However, due to the highly similar physicochemical properties among REEs, their separation remains a significant challenge. Additionally, REEs often exist in low‐concentration solutions, making efficient REE recovery an urgent task.
Miao‐Miao Huang +6 more
wiley +1 more source
Shuitu Baochi Xuebao, 2003 对元谋干热河谷封禁9年区域内山合欢天然林地、加勒比松人工林地相关水文侵蚀效应进行了研究，得出了一系列有关在雨季中末期林地土壤水分动态变化、树干流量与林内雨量以及截流率、林地枯落物含水量、林地径流量、滴溅侵蚀效应等变化规律。
郑科 郎南军 杨新民 温绍龙 江期川
doaj +2 more sources
Effects of Vegetation Restoration on Soil Infiltration and Runoff in the Gully Regions on the Loess Plateau [PDF]
[Objective] To study the effects of vegetation restoration on rainfall infiltration and runoff is of great theoretical and practical value for rational utilization of watershed water resources and ecological construction.
BAI Yungang +4 more
core +1 more source
Engineering 2D Materials for High‐Current‐Density Electrocatalytic Water Splitting
Rare Metals, EarlyView.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