Results 31 to 40 of about 17,971 (165)
Integrative Conservation, EarlyView.The Asian Songbird Crises negatively affects so‐called master birds, species that are used to increase the song complexity of competitive songbirds. We assessed the trade in a master bird, the crested jayshrike, in Indonesia before and after its legal protection.
Vincent Nijman +11 more
wiley +1 more source
Research on Information Code Correction Based on Improved PPYOLOE-R [PDF]
Information-code recognition technology promotes societal progress and provides convenience. Owing to the effect of the photography environment, the information-code recognition effect must be improved, and the information-code angle tilt affects the ...
ZHAO Yuntao, XIAO Junjie, LI Weigang, XIONG Yating
core +1 more source
CLB-Defense: based on contrastive learning defense for graph neural network against backdoor attack [PDF]
, 2023 For the problem that the existing backdoor attack defense methods are difficult to deal with irregular and unstructured discrete graph data to alleviate the threat of backdoor attacks, a backdoor attack defense method for GNN based on contrastive ...
Haiyang XIONG +3 more
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Jellyfish blooms restructure plankton dynamics and trophic linkages in coastal waters
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Jellyfish blooms are increasing globally in frequency and intensity, introducing complex ecological interactions, yet the mechanisms by which they alter ecosystem structure remain poorly characterized due to a lack of sustained field observations.
Pengpeng Wang +4 more
wiley +1 more source
高压组合电器中SF6分解产物SO2F2红外吸收特性及其检测传感装置研究
Gaoya dianqi, 2021 特高压硫酰氟（SO2F2）气体作为气体绝缘全封闭组合电器（GIS）气室中六氟化硫（SF6）分解产物的特征组分,对其进行检测分析可实现GIS设备的早期潜伏性故障识别。搭建光程池温度、压强可调的傅里叶变换红外吸收光谱仪（FTIR）系统,利用FTIR实验及HITRAN数据库得到的吸收谱线参数,对SO2F2气体的红外吸收谱线及其交叉干扰特性进行分析,选取中心波长2 763 cm-1位置作为SO2F2气体的特征吸收峰,并对SO2F2在该波段位置附近受温度和压强影响的红外吸收特性进行研究。结果表明 ...
张施令 +5 more
doaj
Fault diagnosis method of timing signal based on Nadam-TimeGAN and XGBoost [PDF]
In order to improve the diagnostic performance and model generalization ability of the fault diagnosis model in data imbalance scenarios, a time series signal fault diagnosis method based on Nadam-TimeGAN and XGBoost was proposed.
FEI Rong +5 more
core +1 more source
Methods in Ecology and Evolution, EarlyView.Abstract DNA barcode‐based species identification has become pivotal in biodiversity research. Current barcoding‐based deep learning methods have advantages in species identification but exhibit significant limitations. By using COI barcoding alone, previous studies were unable to fully capture species identification features. Prior methods showed that
Bin Ye +4 more
wiley +1 more source
Shuitu Baochi Xuebao, 2022 在全球气候变暖的背景下, 干旱灾害日趋频发。为全面精细研究华中地区降水的时空变化, 结合水汽(PWV)、增强型植被指数(EVI)等数据, 基于地理加权回归模型, 结合克里金插值分别对2010—2019年的GPM IMERG和TRMM 3B43数据进行空间降尺度, 并利用区域内53个气象站数据进行精度评价。对优选的降尺度数据采用变异系数法、Theil-Sen Median趋势分析耦合Mann-Kendall显著性检验方法及Hurst指数法, 分析了华中地区的降水时空变化特征及其可持续性特征 ...
张寒博 +5 more
doaj
Effects of parachute science on local research capacity 降落伞科学对当地研究能力的影响
Conservation Biology, EarlyView.Abstract Strengthening research capacity is essential to address the global biodiversity crisis. Yet, parachute science often undermines this goal, and its prevalence, costs, and benefits are unclear. We analyzed 13,502 publications on primate research that we extracted from Scopus (1960–2022) to evaluate the effects of parachute science on local ...
Li Yang +11 more
wiley +1 more source
智能科学与技术学报, 2022 当代系统认知、管理与控制的核心理论、方法与技术已经转移到大数据和人工智能技术上，这导致当前人工智能技术条件局限与复杂系统认知、管理、控制的需求之间形成了一道鸿沟。因此，现实的需求催生了人工智能的一种新型形态——人机混合增强智能形态，即人类智能与机器智能协同贯穿于系统认知、管理、控制等过程的始终，人类的认知和机器智能认知互相混合，形成增强型的智能形态，这种形态是人工智能或机器智能可行的、重要的成长模式。提出了一种物理-数据-知识混合驱动的人机混合增强智能系统管控方法。从可信分布式数据、计算和算法 ...
张俊 +12 more
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