Results 81 to 90 of about 116,687 (175)
Representation of obligate groundwater‐dwelling copepod diversity in European protected areas
Abstract Groundwaters sustain diverse surface ecosystems and are populated by metazoan species, mostly invertebrates, that provide fundamental ecological functions and are often of prominent conservation value due to narrow endemism and high phylogenetic rarity.
Francesco Cerasoli +7 more
wiley +1 more source
分析钢结构温度效应和确定施工合拢温度关键在于确定温度场的分布。在日照下,由于钢构件的温度场分布非常复杂和不均匀,而难以确定。基于ASHRAE晴空模型,采用ANSYS的APDL语言对箱型钢构件在夏至日日间的温度场进行了数值模拟,模拟中考虑了太阳辐射强度、对流换热系数、构件表面太阳辐射吸收系数等对构件温度场的影响。结果表明:夏至日构件最高温度高达78.411℃,最大升温高达44.803℃;太阳辐射强度、对流换热系数和构件表面太阳辐射吸收系数对日照下的箱型钢构件温度场的影响起主导作用。
刘树堂, 龙期亮
doaj
[Study on the temperature characteristics of fast capacitance in patch clamp experiments]. [PDF]
Kong F, Li X, Jiao R, Sun C.
europepmc +1 more source
Abstract Human development is a driver of global change and a major threat to biodiversity. Protected areas maintain and support biodiversity, but outside stressors, such as climate change and land use change, can negatively influence natural resources within protected areas.
Leah J. Rudge +2 more
wiley +1 more source
高压隔离开关处于高电压、大电流、强磁场的工作环境,针对其触头温度难以测量并严重影响供电可靠性的问题,笔者在分析红外测温基本原理的基础上,提出了基于红外温度传感器的高压隔离开关触头温度在线监测方案,设计了温度检测硬件电路,开发了温度检测软件,研制了基于局域网络的温度在线监测系统。实验结果表明:触头温度测量准确,数据传输实时性好,系统运行稳定可靠。
李中祥, 宋建成
doaj
Genomic responses to increased temperature and pollinator selection in Brassica rapa L.
Summary Rapid environmental change reshapes both abiotic stress and biotic interactions, yet it remains unclear how these combined forces structure plants' genomic adaptation. In particular, the joint influence of temperature and pollinator identity, two ecological axes undergoing simultaneous global shifts, has rarely been quantified at genomic ...
Yanqian Ding, Florian P. Schiestl
wiley +1 more source
イナゴ ラン キセイバチ ニカンスル ケンキュウダイ11ホウ : トクニ キセイバチ ムライクロタマゴバチ オヨビ ツルオカクロタマゴバチ ノ ニッシュウ カツドウト オンド ハンノウ ニツイテ [PDF]
【摘要】 第1報においては卵寄生蜂の新種Scelio sp.として日週活動と温度反応などを報告したが,翌年渡辺博士により数多くの送付標本から形態的に若干の差異ある個体が見出され,ムライクロタマゴバチとツルオカクロタマゴバチの2新種に分けられた.著者はその後種類別に追調査を行い2種の日週活動と温度反応にも著しい差異のないことを第2報【緒言】にのべたが,詳しいデーターは示さなかった.本報は両種を同一日時に,しかも同様環境条件下で調査した結果を示し,第1報と併せ考察したものである.1 ...
村井 貞彰
core +1 more source
Coalition Opportunity Structures and Advocacy Coordination in Consensus and Majoritarian Democracies
ABSTRACT Research on advocacy coalitions suggests that belief homophily—the tendency of actors to coordinate based on shared policy beliefs—drives coalition formation. However, coalition opportunity structures, which are shaped by institutional contexts, may influence the extent to which belief homophily matters.
Keiichi Satoh +7 more
wiley +1 more source
试验研究了国内4种电除尘器绝缘子的瓷材料从常温至500℃高温的弯曲强度。结果表明,在500℃以下它们的弯曲强度没有明显变化。因而,采用瓷材料的常温强度来设计工作温度500℃以下的绝缘子是可以的,用常温强度试验代替绝缘子高温强度试验也是可行的。
王云鹏 +5 more
doaj

