Results 41 to 50 of about 490,447 (173)
2021年9月,重庆市动物园1只3月龄孟加拉白虎(Panthera tigris tigris)出现呕吐、发烧、便血和精神沉郁等症状。经血细胞检测,发现该幼崽白细胞数量下降,通过实时定量PCR检测,最终确定为猫细小病毒(Feline parvovirus,FPV)感染。同圈舍另一只幼崽和母亲及周边圈舍3只华南虎(Panthera tigris amoyensis)检测结果均为猫细小病毒阳性,但未表现出临床症状。幼崽经过1周的抗体、干扰素等治疗,白细胞数量恢复正常,出血症状消失,但总蛋白仍较低 ...
王晓佳 +4 more
doaj
HTTP/Z39.50网关为存取互联网上大量存在的Z39.50服务器及其连接的数据库资源提供了崭新的途径,是实现Z39.50强大信息检索功能与HTTP普及易用集成的有效手段。本文给出了HTPP/Z39.50网关系统的应用模型,并就实现一个有状态的HTTP/Z39.50网关的关键技术进行了讨论 ...
祝忠明
core
ABSTRACT The deformation behavior of NiTiNb shape memory alloys is governed by microstructural heterogeneity, specifically the interconnected topology of the β‐Nb phase. The regulatory role of the eutectic structure in load partitioning and the evolution of deformation mechanisms, particularly in high‐Nb systems, has not been clearly understood.
Qingda Zhang +11 more
wiley +1 more source
世界受危鸭类现状鸭类是世界上最重要的狩猎鸟类。每年狩猎量达数千万只。但是近年来它们的栖息环境发生极大变化,适栖地越来越小,加之过度捕猎及人为干扰,它们的数量急剧下降。许多种类已处于受危状态,亟需加以保护。现将全球受危鸭类现状报导如下。1黑嘴树鸭(De...
宋惠东
doaj
ABSTRACT Lithium‐rich manganese‐based cathodes (LRM) deliver high discharge capacities beyond 250 mAh g−1, but their practical deployment is restricted by irreversible oxygen redox, structural reconstruction, sluggish kinetics and unstable cathode‐electrolyte interfaces (CEI). Here, we develop a colloid‐assisted anchoring‐diffusion engineering strategy
Jia‐Nan Hao +13 more
wiley +1 more source
ABSTRACT Developing rapid, precise gas sensors for Listeria monocytogenes (LM) biomarker detection faces challenges due to suboptimal gas‐solid interactions. Herein, we report the rational synthesis of amino‐functionalized mesoporous SiO2 hollow nano‐doughnuts (MS‐2‐NH2‐2) via modification with (3‐aminopropyl) trimethoxysilane (AAPTMS), which enables ...
Xingyu Wang +7 more
wiley +1 more source
介绍了钢铁企业废水水质的特性,主要对邯钢外排水的现状及处理工艺进行了分析。并针对邯钢目前外排水的处理现状提出了工艺的改进建议及措施。
张振海, 常静, 黎蓓
doaj +2 more sources

