Results 51 to 60 of about 5,173,671 (208)

The research on G-shadowing property and G-periodic shadowing property(G-跟踪性和G-周期跟踪性研究)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2023
研究了度量G-空间中G-跟踪性与G-周期跟踪性之间的动力学关系,给出了G-跟踪性和G-周期跟踪性的定义,利用等价映射和伪等价映射的性质,得到:(1)设(X,d)为紧致度量G-空间,G为可交换的紧致群,f:X→X等价,若f具有G-周期跟踪性,则PG(f)¯=CRG(f);(2)设(X,d)为紧致度量G-空间,G为紧致群,f:X→X等价,若f具有G-跟踪性且PG(f)=WG(f),则f具有G-周期跟踪性;(3)设(X,d)为紧致度量G-空间,G为可交换的紧致群,f:X→X伪等价,若f为G-扩张映射且f具有G-
冀占江(JI Zhanjiang)
doaj   +1 more source

大数据发展背景下开放信息资源的数据服务能力思考

open access: yes, 2016
面对科研第四范式下科研人员对科学数据及其应用的需求变化,思考开放资源建设的服务能力。分析开放信息资源的数据化发展特征,基于对中国科学院科研人员数据需求的调查分析,设计开放信息资源的数据服务策略和服务流程,并尝试提供初步的数据服务实践 ...
黄金霞
core   +1 more source

Estimating the total mortality of seabirds following a marine heat wave

open access: yesConservation Biology, EarlyView.
Abstract Marine heat waves detrimentally affect a range of marine species, including seabirds, and are increasing in frequency and severity. When thousands of dead seabirds wash up on beaches, the public becomes concerned. However, the number of dead birds recorded on beaches is only a fraction of the total mortality; most birds perish at sea.
Jennifer L. Lavers   +3 more
wiley   +1 more source

Emerging applications of large language models in ecology and conservation science

open access: yesConservation Biology, EarlyView.
Abstract Large language models (LLMs) mark a major development in artificial intelligence, with potentially transformative implications for ecology and conservation science. Built on advanced deep‐learning architectures, these models can support a wide range of tasks. We reviewed emerging applications of LLMs, drawing on the wider scientific literature
Christos Mammides   +5 more
wiley   +1 more source

Evaluating the use of taxonomy in the IUCN Red List

open access: yesConservation Biology, EarlyView.
Abstract Taxonomy defines the units that conservationists strive to preserve for future generations. However, the discovery of new species and the taxonomic revision of existing species affect conservation efforts. Despite the importance of taxonomy for a species’ conservation, there is currently no overview of how those leading species extinction risk
Stephen T. Garnett   +8 more
wiley   +1 more source

GPU-based geometry texture synthesis(基于GPU加速的几何纹理合成方法)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2016
提出了一种基于GPU加速的几何纹理合成方法,以解决几何纹理合成过程中高计算量、高存储占用和高耗时等问题.首先,对样本几何纹理数据进行子块划分,并根据子块在样本中的位置关系设计可重用样本顶点数据的数据结构,优化存储以降低内存的占用率;然后,采用GPU多线程并发技术设计并行加速算法,将串行的几何纹理合成过程并行化,从而实现快速生成任意尺寸的新的几何纹理.实验结果表明,该算法不仅占用存储较少,而且在保证合成质量的同时极大地降低了几何纹理的合成耗时.
GUIYan(桂彦)   +3 more
doaj   +1 more source

Insights for conservation from the Ecological Knowledge Games project

open access: yesConservation Biology, EarlyView.
Abstract Environmental conservation research requires robust methods for collecting large‐scale behavioral data and engaging diverse stakeholders in decision‐making processes. We (Y.P., A.B.D., and N.B.) created EcoKnowGames (Ecological Knowledge Games), a transdisciplinary project that develops knowledge games for conservation science and data ...
Yuan Pan   +4 more
wiley   +1 more source

信息推送-NIH为大数据计划投资3200万美元以确保掌握其资助项目的主要数据

open access: yes, 2014
   2014年10月9日,NIH宣布将发展新策略以应对迅速扩增的复杂生物医学数据集,即BD2K计划(Big Data to Knowledge)。BD2K在2014财年首次获资将近3200万美元,总投资计划于2020年达到6.56亿。 随着DNA测序和成像等生物医学研究技术的迅猛发展,相应数据的产生正在超越研究者的处理能力。BD2K计划旨在支持新方法、软件、工具及培训项目的发展以寻求加速数据的处理与再发掘。该计划希望在隐私得以保护的前提下,能够为挖掘巨大数据集探索新方法 ...
王玮
core   +1 more source

Scientists’ warning on the global destruction of rock outcrop ecosystems

open access: yesConservation Biology, EarlyView.
Abstract Rock outcrops are geological formations that harbor a highly specialized biota adapted to harsh environmental conditions that differ from their surrounding landscapes. They are globally distributed, especially in old, highly weathered landscapes, and can function as habitat islands containing high levels of endemism and distinct evolutionary ...
Luiza F. A. de Paula   +19 more
wiley   +1 more source

Effects of restoration practices on biodiversity in temperate and boreal forests

open access: yesConservation Biology, EarlyView.
Abstract Several restoration practices are used to mitigate and compensate for the negative effects of large‐scale forestry on biodiversity in temperate and boreal forests. A comprehensive synthesis of the benefits of these practices across taxa is missing. We conducted a systematic review and meta‐analysis on this topic.
Malin Tälle   +2 more
wiley   +1 more source

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