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Importance of timely metadata curation to the global surveillance of genetic diversity

open access: yesConservation Biology, Volume 37, Issue 4, August 2023., 2023
Abstract Genetic diversity within species represents a fundamental yet underappreciated level of biodiversity. Because genetic diversity can indicate species resilience to changing climate, its measurement is relevant to many national and global conservation policy targets.
Eric D. Crandall   +23 more
wiley   +1 more source

Savviness of prey to introduced predators

open access: yesConservation Biology, Volume 37, Issue 2, April 2023., 2023
Abstract The prey naivety hypothesis posits that prey are vulnerable to introduced predators because many generations in slow gradual coevolution are needed for appropriate avoidance responses to develop. It predicts that prey will be more responsive to native than introduced predators and less responsive to introduced predators that differ ...
Arian D. Wallach   +11 more
wiley   +1 more source

基于悬臂梁光声光谱的双组分气体同步检测方法研究

open access: yesGaoya dianqi, 2023
设计了一种基于光声光谱双光源悬臂梁检测系统,用于检测H2S和CO这两种SF6分解组分气体,通过调制不同的红外激光频率,将两个激光光源应用于两种气体检测。根据不同的调制频率,最后检测两种SF6气体分解成分。在检测单气体组分和混合组分气体条件下,通过实验研究了各组分的不同体积分数与光声信号在检测波长和频率下的线性关系,证明了同步检测方法的有效性。
戴锋   +12 more
doaj  

电力设备SF6气体状态检测典型案例分析

open access: yesGaoya dianqi, 2021
SF6气体因其具有优越的绝缘和灭弧性能,被广泛用作电力设备内部的绝缘介质,其运行状态直接关系到电力设备的运行情况。为了及时准确的掌握充气电力设备的运行状态,需要定期对其开展SF6气体状态检测。文中分别介绍了一起SF6气体纯度检测、SF6气体湿度检测和SF6气体分解产物检测典型案例,分析了异常情况发生的原因,并通过反复排查或解体检查验证了检测方法的可行性和准确性,为电力设备运行状态的准确评价提供一定的参考。
胡长猛   +4 more
doaj  

基于小波分析的气体绝缘电力设备中SF6泄漏检测方法

open access: yesGaoya dianqi, 2020
目前的气体绝缘电力设备中SF6气体泄漏检测方法存在检测精度低、无法对泄漏点准确定位等不足,为此提出基于小波分析的绝缘电力设备中SF6气体泄漏检测方法。通过红外气体检漏器进行采样,通过直方图均衡化实现图像预处理,通过小波变换对信号、图像进行分解,再通过小波变换去除背景,留下目标和噪声,再通过设置小波阈值去除噪声,至此完成基于小波分析的绝缘电力设备中SF6气体泄漏检测方法的设计与实现。从检测精度和泄漏点定位准确性两方面,对提出的基于小波分析的绝缘电力设备中SF6气体泄漏检测方法和传统的检测方法进行对比实验 ...
颜涛
doaj  

基于紫外吸收光谱与最小二乘法的SO2、H2S与CS2混合气体定量检测

open access: yesGaoya dianqi, 2021
SO2、CS2和H2S作为绝缘气体SF6的重要分解气体,它们的种类和含量对SF6气体绝缘设备的诊断具有重要意义。文中提出了一种紫外吸收光谱法和最小二乘拟合联用的方法用于SF6分解气体的3组分混合气体定量检测。在实验过程中,发现较高体积分数的SO2和CS2对较低体积分数H2S的体积分数计算存在干扰并且干扰的程度大小与两种气体的体积分数呈正相关。因此,文中获得了干扰气体体积分数较高时H2S体积分数计算的修正公式,可以实现3种气体的准确定量检测,SO2和H2S检测范围为1~10μL/L(part ...
马勇   +6 more
doaj  

Harnessing social media data to track species range shifts

open access: yesConservation Biology, Volume 40, Issue 3, June 2026.
Abstract Biodiversity monitoring programs and citizen science data remain heavily biased toward the Global North. Especially in megadiverse countries with limited biodiversity records, incorporating social media data can help address existing data gaps.
Shawan Chowdhury   +15 more
wiley   +1 more source

Genomic responses to increased temperature and pollinator selection in Brassica rapa L.

open access: yesNew Phytologist, Volume 250, Issue 2, Page 1231-1247, April 2026.
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

Progress in Surface‐Enhanced Raman Scattering‐Based Volatile Organic Compounds Detection: Materials, Application, and Prospects

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT The detection of volatile organic compounds (VOCs) holds significant implications in environmental monitoring and disease diagnosis. Traditional gas detection technologies are constrained by complex operation and high cost, thereby failing to satisfy real‐time detection demands.
Yuening Wang   +11 more
wiley   +1 more source

SF6分解组分混合气体中CS2的紫外光谱定量分析

open access: yesGaoya dianqi, 2022
基于SF6分解组分检测法的气体绝缘电气设备在线监测及故障诊断技术具有很强的现场抗干扰能力及良好的应用前景。利用紫外光谱技术可以对SF6分解组分中的CS2进行有效检测,但是CS2所处的紫外光谱吸收波段与SF6分解组分中的H2S相重叠,可能存在一定的重叠干扰影响。因此,文中搭建了紫外光谱检测平台,通过配制微量CS2与H2S混合气体模拟真实气体绝缘电气设备中分解组分,对SF6分解组分混合气体中CS2定量检测准确性的问题进行了研究。结果表明:混合气体中不同体积分数的H2S对CS2的定量检测影响较小 ...
刘咏飞   +6 more
doaj  

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