Results 21 to 30 of about 870,812 (144)
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT The regeneration of osteoporotic bone defects is severely hampered by compromised endogenous healing capacity, demanding advanced strategies that actively orchestrate pro‐osteogenic microenvironments. Here, we report an integrated, self‐powered osteo‐regenerative system that uniquely leverages a dual ultrasound‐responsive piezoelectric ...
Bing Tan +6 more
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Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Infrared (IR) stealth is crucial for improving the survivability of equipment. The growing demand for service in marine environments poses new challenges to the composition and structural design of existing IR stealth coatings. This study first investigates the effects of NaCl/water vapor corrosion on the IR stealth performance of GH3536 and a
Kang Wang +5 more
wiley +1 more source
World Water Policy, Volume 12, Issue 3, August 2026.ABSTRACT Groundwater depletion is a major challenge in semiarid, hard‐rock regions where irrigation demands often exceed natural recharge. This study evaluates the effectiveness of farm‐scale recharge pits as a local, supplementary, and community‐managed groundwater recharge solution in the Dharta catchment of Rajasthan, India. Alongside check dams and
Prahlad Soni +4 more
wiley +1 more source
, 2014 傳統化學需氧量的分析方法是以重鉻酸鉀加熱迴流2小時，其過程不僅耗時且會產生大量毒性廢液。本研究室曾發表以密閉式微波法偵測水中化學需氧量之研究，以硝酸銀替代硫酸汞抑制氯鹽的干擾，消化過程僅需4分鐘，研究結果對於配製水樣（KHP）的測試尚可，但是對於真實水樣不甚理想，尤其是較難分解的化工廢水及易氧化水樣的測試，效果較不理想。本研究之目的在改進微波法的缺點，修正實驗程序，使微波消化法適合偵測各種廢水之化學需氧量。依序加入2ml AgNO/sub 3/，7ml（Ag）/sub 2/SO/sub 4/，2ml K/
林世宗; 林鳳祥; 許道平
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Conservation Biology, Volume 40, Issue 4, August 2026.Abstract The design of experiments to investigate the combined effects of multiple stressors requires exposing target organisms to multiple combinations of stressor doses. Concurrent manipulation of stressors is often infeasible with wildlife, but long‐lasting health effects allow individual health to be used as an integrator of prior stressor exposure.
Enrico Pirotta +24 more
wiley +1 more source
Shuitu Baochi Xuebao, 2001 河流系统的生态需水是指维持河流正常的生态结构和功能所需要的一定水质最小水量 ,具有明显的时空变化特征。河流系统的生态用水包括河道系统 (包括排沙生态用水和水面蒸发生态用水 )和洪泛地系统两大系统的生态用水。东辽河流域河道系统生态需水量占年均径流量的 44 .43%。洪泛地生态用水量为 16 .87亿 m3,占全流域年均降水量的 2 8.0 2 %。必需采取有效措施进行河流水资源开发的有效调控。
严登华 何岩 等
doaj +2 more sources
Shuitu Baochi Xuebao, 2002 以黄淮海地区为例 ,对林地最小生态需水量的理论和方法进行探讨 ,研究内容主要包括 :(1 )从林地生态系统水量平衡关系出发 ,分析林地生态需水的各种表现形式 ,并对林地生态需水量概念进行界定 ;(2 )提出林地最小生态需水量的计算方法 ,对其中的土壤最小含水定额和最小蒸散定额进行理论探讨 ;(3)按照区域生态环境保护目标的要求 ,对黄淮海地区的林地合理面积进行规划 ;(4 )根据规划结果 ,在 GIS支持下计算研究区的林地最小生态需水量。研究表明 ,黄淮海地区的林地合理面积为 7.80万 km2 ...
张远 杨志峰
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Structured machine learning modeling to support conservation of deep‐sea benthic biodiversity
Conservation Biology, Volume 40, Issue 4, August 2026.Abstract Biodiversity monitoring programs need to deliver accurate, timely, and actionable predictions. To establish a predictive monitoring program for deep‐sea benthos of the Santos Basin, Brazil, we developed a two‐stage structured model that allowed comparison of biodiversity predictions obtained from environmental simulations (2M‐Sim).
Gustavo Fonseca +23 more
wiley +1 more source
, 2007 在剖析生态环境需水量概念和计算方法的基础上,把生态环境需水量分成需要在水资源规划中配置的水量和不需要配置的水量。在需要配置的生态环境需水量中,又分为直接配置水量和间接配置水量。在水资源规划中,既要计算直接配置水量,又要计算间接配置水量。文中介绍了需要配置的生态环境需水量的确定方法 ...
黄均池, 左其亭, 周可法
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, 2013 碩士水為人類不可或缺之資源，因於南臺灣豐枯不均極為嚴重。可靠水源不穩定，水庫淤積、地下水超抽導致海水入侵。缺乏大型蓄水設施蓄豐濟枯。導致目前枯水期必須部分仰賴移調農業用水甚至河川保育用水因應給予生活及工業用水。臺灣面臨八年來最嚴重的旱象造成限水上危機，也造成國家經濟重大衝擊。 本研究主要以不超抽地下水及不抽取地下水為指標原則，統計並推算出未來10年後南部地區各標的總缺水量及農業休耕用水方面以海淡水取代。使用LINGO最佳化模式軟體，由六個方案的目標問題及限制式估計出南臺灣各方案最佳耗資成本 ...
曾鈺芳; Zeng, Yu-Fang
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