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水电科技针对目前国内小型水电站普遍存在的设备陈旧、技术落后和运行安全性差的问题，自动化装置的引入显得尤为重要。通过对自动化装置的应用及其性能进行分析，本研究表明，这些装置在提高运行效率、改善设备状态和增强安全性方面具有显著效果。自动化技术能够有效减少人为操作错误，优化资源利用，降低运营成本，并提升系统的稳定性。尽管自动化技术带来了诸多好处，但也面临设备投资高、技术适配性差和操作维护难度大的挑战。因此，需要在技术研发、系统集成及培训方面继续努力，并推动政策支持。随着技术的进步和经验的积累 ...
磊 李
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Journal of Zhejiang University SCIENCE B, 2020 目的 目的探讨基于网络的整合心理干预对新冠肺炎患者抑 郁焦虑症状的有效性。 创新点 创新点针对大规模公共卫生事件的患者, 首次采用基于 网络的整合心理干预技术开展抑郁焦虑症状的 治疗。这不仅能够让隔离患者更便捷地获得心理 干预, 而且减少了心理医生的感染暴露机会。 方法 方法纳入26 例伴有抑郁焦虑症状的新冠肺炎患者, 随机分为干预组和对照组。干预组给予基于网络 的整合心理干预, 患者在医生指导下, 通过智能 手机聆听音频材料, 并接受整合心理干预, 包括 放松训练、正念治疗、“安全地”技术和蝴蝶拥 ...
N. Wei +12 more
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Rare Metals, EarlyView.ABSTRACT The poor Zn chemistry of Zn metal anode and sluggish reaction kinetics of cathodes at high mass loadings are two crucial issues for hindering the application of aqueous Zn‐ion batteries (AZIBs). Herein, the hierarchical porous N‐doped carbon fibers (HPNCFs) were proposed to simultaneously optimize the reversibility of Zn plating/stripping of ...
Song Yang +6 more
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Shuitu Baochi Xuebao, 2002 土壤水分有效性的高低是制约石渣土生产能力的关键因素之一。对丹江口库区郧县石渣土 3种不同土石比土壤水分有效性的研究表明 :土壤水分有效性与土壤中的土 (<2 mm)石 (>2 mm)比关系密切。土壤蒸发、持水、导水和供水能力均与土壤中的土石比的大小有关。 3种土壤的持水能力 ,以石砾含量较少、质地较粘的土壤最强 ,以石砾含量较多、质地为壤质的土壤最低。而土壤水分蒸发能力与砾石含量呈负相关 ,土壤水分扩散率则与砾石含量呈正相关。适中土石比的土壤可提高入渗性能 ,减少蒸发量 ,提高供水性能。
吕国安 蔡崇法 等
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Shuitu Baochi Xuebao, 2021 为探究微塑料对土壤持水性能的影响，选用粒径为1 mm和25 μm的聚乙烯微塑料（PE—MPs）颗粒进行土培处理后，采用高速离心机法测得不同处理下的土壤水分特征曲线，并使用Gardner模型进行拟合分析。结果表明：（1）土壤中累积少量的PE—MPs （0~5.00 g/kg）能增强土壤持水性，但当累积量超过一定阈值（5.00~50.00 g/kg）会导致土壤持水能力显著降低。（2）1 mm大粒径PE—MPs大量积累对土壤持水性的降低效应更显著；25 μm小粒径PE ...
周薇, 石磊, 许明祥
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Rare Metals, EarlyView.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
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Rare Metals, EarlyView.ABSTRACT With the rapid development of the energy storage industry, aqueous zinc‐ion batteries (AZIBs) have attracted considerable attention in the field of energy storage because of their inherent advantages, thereby emerging as a promising research direction with significant potential.
Lingjiao Fu +8 more
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Rare Metals, EarlyView.ABSTRACT Chlorination roasting has emerged as a promising pyrometallurgical strategy for the selective recovery of lithium from spent lithium‐ion batteries (LIBs). In this study, a natural roasting agent, seawater‐derived chlorides, was employed to selectively extract lithium from spent LiNi0.5Co0.2Mn0.3O2 (NCM523) cathode. MgCl2·6H2O, a main component
Bei‐Lei Zhang +7 more
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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
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Shuitu Baochi Xuebao, 2005 杂交狼尾草是一种优良的多年生禾本科牧草,具有很好的水土保持能力,但人们对其水土保持方面的定量研究较少。通过对杂交狼尾草草地植被的持水能力、土壤水分变化、土壤抗冲性、渗透性等指标的研究,探讨杂交狼尾草的水土保持能力。结果表明:杂交狼尾草的持水能力强,能明显增加土壤水分含量,提高土壤的抗冲性、渗透性,在三峡库区的水土保持工作中有着广阔的应用前景。
王凭青 段传人 王伯初 刘万钱 朱蠡庆
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