Results 21 to 30 of about 1,219,149 (166)

运动稳定性理论

open access: yes, 1958
目录第一章 基本概念和定义1. 问题的提法2. 稳定的定义3. 干扰运动的微分方程4. 按李雅普诺夫意义的稳定以及其他一些稳定的定义5. 关于解决稳定问题的方法第二章 对于定常运动的李雅普诺夫第二种方法6. 基本定义7. 函数的定号性及变号性的准则8. 定号的函数的几何解释9. 关于运动稳定的李雅普诺夫第一定理10. 关于运动稳定的李雅普诺夫第二定理11. 前述定理的几何解释12. 前述定理应用举例13. 关于不稳定的李雅普诺夫第一定理14.
(苏)马尔金著, 解伯民等译
core   +2 more sources

Wild Pigs (Sus scrofa) Stand Their Ground: Investigating Flight Response, or Lack Thereof, to Perceived Predation Risk 野猪坚守原地:探究其面对感知捕食风险时的逃逸反应 (或无逃逸行为)

open access: yesWildlife Letters, EarlyView.
We used automated behavioral response systems (ABRs) to assess invasive wild pig (Sus scrofa) behavioral response to four auditory playbacks: humans, coyote vocalizations (Canis latrans), pigs in distress, and barred owl (Strix varia) calls. Wild pigs had a significant flight response to human playbacks, but 68% of pigs did not flee.
Justine L. Smith   +2 more
wiley   +1 more source

Sixteen Years Later: Revisiting Cultural Complexes and the Roots of Archetypal Thematic Analysis (ATA)1

open access: yesJournal of Analytical Psychology, EarlyView.
Abstract Written as a letter to my 28‐year‐old self, this paper explores the development of my engagement with cultural complexes. On August 18, 2009, I finished a chapter applying cultural complexes to a history of China, complete with elaborate charts that seemed to confirm a process by which cultural complexes are formed, and how China’s then recent
Kevin Lu
wiley   +1 more source

Advancing conservation breeding programs for marine invertebrates

open access: yesConservation Biology, EarlyView.
Abstract In the face of ecosystem change and biodiversity loss caused by climate change and other stressors, conservation breeding, or captive breeding, with the aim of reintroduction for wild population recovery, is an emerging tool for preventing species’ extinction and rehabilitating ecosystems.
Elora H. López‐Nandam   +3 more
wiley   +1 more source

立正生のすまい、学寮 [PDF]

open access: yes, 2020
書誌別タイトル ...
立正大学史料編纂室
core   +1 more source

Twelve principles for successful governance of community‐based coastal marine restoration

open access: yesConservation Biology, EarlyView.
Abstract Global agreements, such as the Global Biodiversity Framework, call for urgent, large‐scale action to halt biodiversity loss through a whole‐of‐society approach. Community‐based restoration can play a crucial role in achieving this goal, yet there remains limited understanding of what makes these projects effective and sustainable.
Michelle M. Holian   +2 more
wiley   +1 more source

On the left multiplicative perturbations of C-regularized resolvent families(C-正则预解族的左乘积扰动)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2007
研究了定义在Banach空间X上C-正则预解族的乘积扰动问题.应用算子理论方法,给出了 一个C-正则预解族的左乘积扰动定理.
LIYa(李亚)
doaj   +1 more source

Structured decision‐making as a framework to incorporate social equity into conservation decisions

open access: yesConservation Biology, EarlyView.
Abstract Many conservation challenges require negotiating trade‐offs between the needs of different actors. Global frameworks such as the Kunming–Montreal Global Biodiversity Framework explicitly call for diverse participation and social equity in conservation decision‐making.
Emily Massingham   +2 more
wiley   +1 more source

电化学去除污水中磷的工艺研究

open access: yesGongye shui chuli, 2021
采用正交试验法研究不同电极、电压、电流对电化学去除污水中磷的影响。结果表明:磷的去除率随电压的增加而增大,电流的影响不显著。对于磷质量浓度为0.500 mg/L的中水,最佳电解条件为:铁作正极、铝作负极,电压25 V,电流0.5 A,电解时间40 min,磷去除率为96.0%。电解磷质量浓度为12.97 mg/L的废水,最佳电解条件为:铁作正极、铝作负极,电压30 V,电流1 A,电解时间为60 min,磷去除率为96.77%以上。处理后水中磷的浓度可达到国家排放标准和回用要求。
程水林   +5 more
doaj   +2 more sources

A methodological assessment and reflection on member checking as a form of participant validation for conservation social science

open access: yesConservation Biology, EarlyView.
Abstract Qualitative approaches are increasingly applied in conservation social science, yet methodological reflection remains limited. Member checking, a process of returning findings to participants for feedback, is widely recognized outside conservation as a means to enhance rigor and reciprocity, but it is rarely reported in conservation research ...
Judith J. Rakowski   +6 more
wiley   +1 more source

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