Results 21 to 30 of about 13,728 (118)
Evaluating synthetic substitutes to reduce illegal harvesting and support species recovery
Conservation Biology, EarlyView.Abstract Providing synthetic substitutes is a widely promoted strategy to shift consumer demand away from wildlife products derived from threatened species. Yet, there is little evidence on whether product substitution prevents illegal or unsustainable harvesting and contributes to the recovery of threatened populations.
Aditya Shekhar Malgaonkar +17 more
wiley +1 more source
野生动物学报, 2019 利用衰减全反射红外光谱技术，对赛加羚羊等3个物种共49份相关样本进行检测、分析并计算其相关系数，结果：同支羚羊角壳不同取样部位红外光谱相关系数为96.69%—99.43%；不同羚羊角壳相同取样部位红外光谱相关系数为94.24%—99.43%；不同物种角质壳红外光谱相关系数为99.28%—99.47%；羚羊角壳与其骨质芯混合物红外光谱随角骨比例变化，骨质成分越多，其红外光谱与羚羊角壳红外光谱的相关系数越低。由此推断红外光谱因取样部位、个体及物种不同而产生差异，且个体间和取样部位差异甚至大于种间差异 ...
刘闯李超金煜
doaj
Studies of optical absorption of azo pigment from 1-aminoanthraquinone(含蒽醌基单偶氮染料吸收光谱研究)
Zhejiang Daxue xuebao. Lixue ban, 2002 由1-氨基蒽醌与不同偶合基合成了8个含蒽醌基单偶氮染料,对其进行了元素分析、红外光谱和紫外光谱表征。对其紫外吸收光谱的研究表明,当偶合基由2-羟基-3-氨替酰氨萘酚变为2-羟基-11氢-苯并咔唑-3-氨替酰氨萘酚时,偶氮染料的吸收红移130 nm。用紫外灯光和红外灯光对8个偶氮染料进行了光照实验,发现紫外光照会引起偶氮染料DMF稀溶液减色,没有观察到N=N双键的顺反异构吸收变化。
ZHANGYu-hong(张玉红) +1 more
doaj +1 more source
Emerging applications of large language models in ecology and conservation science
Conservation 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
Conservation 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
Dianci bileiqi, 2018 红外技术是检测高压瓷质绝缘子劣化情况的一种有效手段,绝缘子随着阻值的减少而呈现出发热功率先增加后减少的一种趋势,因此绝缘子红外检测技术存在一定的盲区。通过戴维南等效电路法计算红外检测盲区,着重考虑绝缘子红外检测盲区的范围并进行定量的分析,然后设计相关实验探索盲区检测环境条件以提高红外检测盲区的准确率。在计算红外检测盲区的基础上设计针对盲区检测的环境因素影响实验,实验结果表明:在改变相关环境因素的条件下,劣化绝缘子红外检测盲区的诊断准确率有着较大的提高。
胡淋波 +6 more
doaj
Changes in the transformative potential of action proposals in Finnish Red Lists from 1986 to 2019
Conservation Biology, EarlyView.Abstract Red lists provide critical knowledge regarding biodiversity decline, especially in Finland, where broad assessments have been made regularly since the 1980s. They deliver information on the threat status of species and ecosystems, propose actions to guide conservation policy, and have the potential to spur transformative change.
Anni Arponen +4 more
wiley +1 more source
Visible‐Light‐Excited Optical Thermometry in Ca3Sc2Si3O12: Er3+ via an Efficient Eu2+ Bridge
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Er3+ ions are promising for optical thermometry due to their thermally coupled levels. However, their parity‐forbidden transitions result in weak and narrowband absorption, which restricts excitation to infrared lasers (e.g., 808, 980, or 1550 nm). Moreover, the single emission center inherently limits temperature sensitivity. In this work, we
Yi Liu +6 more
wiley +1 more source
Gaoya dianqi, 2017 针对红外测温只能发现设备异常,无法准确诊断设备故障的问题。设计了一套基于案例推理技术的电力设备红外诊断方法。将电力企业现有的红外图谱和设备故障内外部温度变化规律建成案例库,依据空间向量的夹角余弦法求解同红外测温异常数据最相似的以往案例,实现测温现场的设备故障诊断。
李孟兴 +9 more
doaj
Mechanoluminescent Mixed‐Anion Borate Sr2B5O9Cl:Eu for Dynamic Anticounterfeiting
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Mechanoluminescence (ML)—the emission of light in response to mechanical stimuli—offers a direct and visually intuitive route for transducing mechanical information into optical signals. Herein, we report a mixed‐anion strategy to prepare mixed‐anion borate Sr2B5O9Cl:Eu phosphors through a facile, low‐temperature, and ambient‐atmosphere solid ...
Yuhong Han +7 more
wiley +1 more source