Results 21 to 30 of about 15,266 (166)
Differences in characteristics between naturalized threatened plants and other threatened plants
Conservation Biology, EarlyView.Abstract Many non‐native plant species introduced by humans have become naturalized. At the same time many species are threatened in their native range. However, the number of plant species threatened in their native range that are naturalized elsewhere remains unknown.
Weihan Zhao +10 more
wiley +1 more source
A calculational model for 3D fault complexity based on curvature analysis and fractal dimensions [PDF]
Objective and Methods Faults are identified as one of the most threatening geological structural factors among hidden disaster-causing factors in coal mines. However, the 3D quantitative assessment of them remains challenging.
Chenguang LIU +8 more
core +1 more source
Representation of obligate groundwater‐dwelling copepod diversity in European protected areas
Conservation Biology, EarlyView.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
Fractal characteristics and related affecting factors of particle size distribution in mangrove soils in Dongzhai Harbor of Hainan [PDF]
, 2008 应用分形理论分析了海南东寨港红树林土壤粒径分布的分形特征及其影响因素,海南东寨港土壤的分形维数为2.302～2.575,分形维数的大小与土壤中的粘粒、盐分、有机质、全氮含量呈显著正相关,外滩红树林土壤的分形维数低于中滩和内滩;随着土壤质地由砂壤土、轻壤土、中壤土、重壤土的变化,分形维数逐渐增大;从陆到海土壤分形维数逐渐减小。群落类型、土壤质地、滩位、含盐量、有机质、全氮含量等是影响海南东寨港红树林土壤分形维数的主要因子。The analysis with fractal theory on the ...
刘美龄, 叶勇, 唐飞龙, 曹长青
core
Study on mechanical properties and fractal evolution law of containing tectonic coal combination [PDF]
To study the mechanical properties of tectonic coal combination specimens, based on the occurrence characteristics of coal seam in a high gas mine, this study carried out the mechanical properties test experiment of loading and fracture process of ...
Li GUO +6 more
core +1 more source
New Phytologist, EarlyView.Network of VAMP714‐dependent interactions during salt stress. Summary Plant responses to salt stress include an altered root architecture mediated by ion imbalances, reactive oxygen species (ROS) accumulation, and altered hormonal responses. Auxin is implicated in these processes.
Jialei Sun +3 more
wiley +1 more source
New method of calculation Boolean difference based on bj map(基于bj图计算逻辑函数布尔差分的新方法)
Zhejiang Daxue xuebao. Lixue ban, 2004 分析了逻辑函数在部分变量取反时的bj图和降维bj图,在此基础上提出了用bj图和降维bj图计算逻辑函数的一阶布尔差分和二阶布尔差分的图形方法.实例表明,该图形方法有直观、简单等特点.它能给出逻辑函数布尔差分的最简与/异或式.
WUGui-chu(吴桂初) +2 more
doaj +1 more source
Policy Studies Journal, EarlyView.ABSTRACT Despite extensive research on policy diffusion, the ways in which policy attention influences this process remain underexplored. This study addressed this gap by distinguishing between three types of policy attention—political speeches, policy issuance and field visits—and investigating their differential impacts when delivered by central and ...
Xiangning Chen, Yahua Wang
wiley +1 more source
Study on pore structure and fractal characteristics of middle rank coal reservoir in Longtan Formation of Panguan syncline [PDF]
In order to study the pore structure characteristics of middle rank coal reservoirs, we qualitatively and quantitatively analyzed the pore structure characteristics of 15 middle rank coal samples from different coal seams in 8 parameter wells in the ...
Jun CHEN, Wei GAO, Yu LONG, Zhonghu WU
core +1 more source
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
wiley +1 more source