Results 11 to 20 of about 7,701 (119)
Timing of hydrologic anomalies direct impacts on migration traits in a flood pulse fishery system
Journal of Applied Ecology, Volume 60, Issue 3, Page 494-506, March 2023., 2023 We designed a spectral analysis framework to quantify hydrological variation and linked it with fishery harvest records. Quantified effect sizes of hydrologic anomalous events demonstrated one designed hydrograph for fishery benefits: properly timed prolong drought followed by a strong flood pulse.
Qi Deng +4 more
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Conservation Biology, Volume 37, Issue 1, February 2023., 2023 Abstract Invasive species can dramatically alter ecosystems, but eradication is difficult, and suppression is expensive once they are established. Uncertainties in the potential for expansion and impacts by an invader can lead to delayed and inadequate suppression, allowing for establishment.
Brian D. Healy +5 more
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Gaoya dianqi, 2021 当±800 kV新东直流正常运行时,±800 kV昆柳龙线路与其部分线段并行,昆柳龙线路感应电压远远高于其他直流线路感应电压。文中利用有限元仿真软件建立新东直流和昆柳龙直流并行线段的二维仿真计算模型,仿真了新东直流输电线路带电运行情况下昆柳龙直流线路的感应电压特性。结果表明:柳北站—龙门站线路在静电场单独作用下,正极感应电压为6 kV,负极感应电压12 k V;在静电场与离子流场的合成电场作用下,正极感应电压为20.7 kV,负极感应电压30.5 kV,这与实际测量结果最高感应电压为42 kV较为接近 ...
杨晓峰 +7 more
doaj
MMC celebrating 6 years of experience and expansion 庆祝MMC六年的经验和壮大
, 2022 Journal of Diabetes, Volume 14, Issue 5, Page 356-357, May 2022.
Itamar Raz
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Gaoya dianqi, 2020 针对地磁风暴发生时系统电压降低的现象,研究了地磁感应电流引起的直流偏磁对电力系统电压的影响。基于PSCAD/EMTDC平台搭建了地磁感应电流—直流偏磁的仿真模型,并用低频正弦交流电模拟地磁感应电流,记录了变压器无功功率的需求变化和系统的电压,另外研究了地磁感应电流对发电机出力的影响,同时与单极运行直流电流对电压的影响进行对比研究。结果表明,磁感应电流会导致变压器无功需求周期性增多,系统电压周期性降低,最大下降约为10%,同时地磁感应电流会导致发电机有功出力减小、无功出力增大 ...
万毅 +5 more
doaj
Journal of Adolescence, EarlyView.ABSTRACT Introduction Following rapid iterations in media technologies, Chinese millennials (born between 1980 and 1995) find themselves in a paradoxical state where digital saturation exists alongside fatigue, making them central practitioners of digital minimalist behavior.
Chao Zhang, Yinze Hao, Jingwen Li
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Resource Substitution: Local Governments' Issue Attention and Policy Reinvention
Policy Studies Journal, EarlyView.ABSTRACT Research on policy reinvention, where a government modifies rather than replicates policy innovations introduced by other governments, has progressed significantly, but how it is influenced by the government's issue attention has not been thoroughly examined.
Yingxin Zhang, Yixue Yao, Kaifeng Yang
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Additive manufacturing, commonly referred to as three‐dimensional (3D) printing, provides the geometric freedom and multi‐material integration needed to build soft medical robots for minimally invasive interventions, prosthetics, and rehabilitation.
Yao Wang +5 more
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT The development of neuromorphic electronics with visual perception and adaptive capability is highly desirable for advancing artificial vision systems. Herein, we have demonstrated a dual‐plasticity adaptive phototransistor based on IGZO nanofibers that exhibits the perception and dynamic adaptation behavior of rod and cone cells to varying ...
Shanshan Jiang +5 more
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Moisture‐enabled electricity generation technology offers a new paradigm for sustainable energy harvesting, but its practical applications are still limited by issues such as low output power and insufficient long‐term stability. In this paper, an asymmetric sandwich‐structured hydrogel moist–electric generator (SSHMEG) with an ion ...
Peng Chen +7 more
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