Results 31 to 40 of about 58,359 (220)
The Effect of Heat Treatment on Mechanical Properties of Cu-0.93 mass％Ni-0.24 mass％P Alloy [PDF]
, 2019 Cu-Ni-P alloys are the typical precipitation-hardening material. Thus, Cu-Ni-P alloys are expected to apply alternative materials for heat-exchanger tubes.
安藤 哲也, 河野 浩三, 稲垣 達
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Integrative Conservation, Volume 4, Issue 2, Page 116-119, June 2025.This study provides definitive evidence of wolf presence based on camera trap surveys conducted in Shangri‐La National Park, northwestern Yunnan, between 2022 and 2024. This remarkable rediscovery highlights the critical role that well‐managed national parks can play in facilitating the recovery of endangered species.
Yun Deng +10 more
wiley +1 more source
野生动物学报, 2018 爱鸟周是法定形式的全国性的鸟类保护行动。近年来,爱鸟周活动中的人工投食现象频现。鸟类的食物具有种间特异性、时空特异性,有必要对科学投食提供一些建议。2017年6～9月,以城市绿地环境中的鸟类群落为研究对象,进行了鸟类群落物种组成与优势度分析及食性集团划分方面的案例性研究。分析结果显示出:(1)该区域繁殖期共有鸟类24种,以雀形目占绝对优势; 其中,麻雀和喜鹊是优势种,家燕、金腰燕、灰喜鹊、普通鳾为常见种;(2)24种鸟分为5类集团,分别为中下层偏植杂食啄拾集团、中下层偏肉杂食啄食集团 ...
李 翔 李祎斌 吴庆明 隋 媛 刘新宇沙力瓦·拍依祖拉木 何富英 夏丹霞
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Transcending Multidimensional Poverty Classes in Urban Developing Municipalities
Poverty &Public Policy, Volume 17, Issue 2, June 2025.ABSTRACT The study draws on the multidimensional poverty index to characterize the poverty status of households in the Gauteng City Region, South Africa. In particular, it applies multinomial logit regression and mediation analysis to determine the factors influencing the transition of poor and vulnerable households into the multidimensionally nonpoor ...
Adrino Mazenda +2 more
wiley +1 more source
野生动物学报, 2023 2021年4—7月，在哈尔滨兆麟公园采用定点观察法、瞬时扫描法对繁殖期鸳鸯（Aix galericulata）日行为模式的时间分配和节律在不同性别、不同阶段、成幼间的差异进行研究，主要观察记录静栖、站立、游走、理羽、觅食、警戒、打斗和飞行等行为，累积观察726 h，共获得173 246条有效数据。结果表明：（1）在日行为时间分配上，不同性别、不同阶段（卵期和雏期）及成幼间存在显著差异（p<0.05）。静栖是卵期、雏期成年雌雄个体的优势行为，雄性站立和打斗行为显著高于雌性，雌性觅食行为显著高于雄性 ...
NGO THI KIEU TRANG +8 more
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Conservation Biology, Volume 39, Issue 3, June 2025.Abstract Globally, Indigenous peoples and local communities (IPs and LCs) are fighting for the recognition of their knowledge and decision‐making authority in freshwater conservation. In the Amazon, decision‐making around freshwater management and conservation has often overlooked Indigenous and local knowledge (ILK) and the connections between ...
Simone Athayde +8 more
wiley +1 more source
Including the urbanization gradient in people‐centered wildlife conservation in Amazonia
Conservation Biology, Volume 39, Issue 3, June 2025.Abstract Conservation policy in the Amazon traditionally focuses on rural areas, overlooking the socioecological roles of urban populations. This oversight can hinder sustainability by neglecting rural–urban connections. We compared the prevalence and quantity of wild meat consumed, bartered, and traded commercially in rural, peri‐urban, and urban ...
Lísley P. Lemos +3 more
wiley +1 more source
野生动物学报, 2017 2015年3～5月,在广西宜州市对春季暗绿绣眼鸟的食性及取食空间生态位进行了研究,记录的数据主要有暗绿绣眼鸟的数量、取食时段、食物种类、取食方式以及包括取食高度、水平取食位置、取食方向在内的相关取食行为数据。结果表明:暗绿绣眼鸟为杂食性鸟类,春季主要是在乔木树冠中层的中外侧采食植物的嫩叶和果实,偶尔会捕捉昆虫或者采食花瓣,取食方式主要为啄食。一天中暗绿绣眼鸟在6:00～9:00这一时段采食的数量最多,占总取食频次的50.13%; 其次是9:00～12:00和15:00～18:00,分别占26.03 ...
黄 杰 原宝东 闫永峰
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Zhongshan Daxue xuebao. Yixue kexue ban, 2022 目的分析食管鳞癌患者（ESCC组）与健康对照组（HC组）肿瘤组织菌群多样性，筛选出食管鳞癌患者肿瘤组织中特异性细菌。方法收集105例食管鳞癌患者肿瘤组织标本和54例健康对照者的食管组织标本，提取标本总DNA，用PCR方法扩增16S rDNA V4区，后行高通量测序，将数据做OTU聚类及多样性分析筛选食管鳞癌组织内特征菌。最后用定量PCR（Q-PCR）扩增方法验证筛选结果。结果多样性分析表明ESCC组肿瘤标本和HC组正常食管组织标本内菌群多样性及组成存在明显差异，物种分析表明ESCC组以梭杆菌属 ...
冼博鸿 +7 more
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