Results 61 to 70 of about 8,323 (166)
Haiyang yu huzhao海气湍动能通量刻画了海气之间湍动能的交换过程，同时包含着大气湍流相干结构的重要信息。基于广东茂名附近海上观测塔2012年2月15日至5月8日的实测大气湍流数据以及同步波浪测量数据，研究并对比了低风速情况下不同海浪条件和大气稳定度对海气界面湍动能通量的影响规律，采用谱分析和概率统计方法定量地展示了这些影响的显著性和幅度特征。结果表明，涌浪情况下，湍动能通量协谱和Ogive曲线上会出现相应受影响区域，涌浪能够导致湍动能通量的减小。通过对通量归一化和正、负贡献量的提取发现：在相同风速下 ...
谭 超, 宋 金宝, 刘 长龙
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Zhejiang Daxue xuebao. Lixue ban, 2003 七子花是我国特有的单种属珍稀濒危植物,为国家二级重点保护野生植物,主要分布于浙江、安徽和湖北,而浙江是其分布中心.作者在野外调查的基础上,分析了浙江省七子花的地理分布特点、种群数量和群落类型.结果显示:浙江有七子花分布的群落总面积为54.28公顷,保存有七子花约近3万株(丛),并集中分布在临安等5个县市.七子花分布的群落类型较多,但未见于常绿阔叶林中,反映了七子花是在人类长期干扰下勉强生存.但是,七子花对非生物环境的适应幅度较宽,其种群的生存和发展还是有希望的.最后,根据七子花的资源现状 ...
YUJian(俞建) +4 more
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The Kaohsiung Journal of Medical Sciences, EarlyView.ABSTRACT Intracerebral hemorrhage (ICH) is a life‐threatening stroke subtype that lacks effective drug therapy. In the context of ICH, neuroinflammation, and ferroptosis are key contributors to secondary brain injury. In this study, we assessed the neuroprotective effects of matrine (MAT) and its mechanism of action involving the HMGB1/RAGE axis in an ...
Pan‐Di Chen +7 more
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Laser &Photonics Reviews, EarlyView.Te@Se core–shell heterojunction quantum dots (QDs) are synthesized by a two‐step strategy via combining liquid‐phase exfoliation and epitaxial growth. As active materials in photoelectrochemical photodetectors, Te@Se QDs exhibit excellent photo‐response performance in low‐concentration electrolytes and deionized water.
Yiming Zhao +8 more
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野生动物学报, 1986 黄腹角雉（Tragopan caboti）为我国特产珍禽、国家一类保护动物,分布于福建、广东、广西、浙江、江西及湖南等省的局部地区,数量已极为稀少。它的典型栖息地为亚热带常绿阔叶林及针阔混交林,海拔1,000～1,400米的山中 ...
郑光美
doaj
ChemistryOpen, EarlyView.In this article, proteolysis targeting chimeras (PROTACs) bearing a polyamine linker capable of crossing cancer cell membranes via the polyamine transport system are synthesized and evaluated. The results provide valuable insights for the design of PROTACs with enhanced cellular uptake efficiency.
Yanran Liu +6 more
wiley +1 more source
投喂频率对横带髭鲷
Haiyang yu huzhao为探究投喂频率对横带髭鲷幼鱼生长性能、营养成分、消化酶活性及消化系统形态结构的影响，选用初始体重为(7.13±0.93) g的活力较好幼鱼，随机分为4组，每组3个重复，每个重复20尾鱼。4个实验组的投喂频率分别是1次/d (F1)、2次/d (F2)、3次/d (F3)、4次/d (F4)，试验持续8周。结果表明，随着投喂频率增加，终末体重、增重率、特定生长率、摄食率均有所上升，但F3和F4组没有显著差异，F4组较F1组终末体重增加了8.29 g、增重率提高了63%、摄食率提高了20 ...
平 洪领 +5 more
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ChemistryOpen, EarlyView.This study employed density functional theory (DFT) and conceptual DFT (CDFT) to calculate the structures and properties of potential antibacterial compounds derived from 16‐membered lactone ring‐containing secondary metabolites of extremophiles, as well as midecamycin.
Dilong Li +6 more
wiley +1 more source
Haiyang yu huzhao为探究山莨菪碱在浸泡免疫大黄鱼中的应用效果，以添加山莨菪碱佐剂的杀香鱼假单胞菌灭活疫苗浸泡免疫大黄鱼，结果显示，免疫后1~4周，无佐剂疫苗组(FKC组)和山莨菪碱疫苗组(FKCA组)血清抗体水平均显著升高，第2~3周FKCA组血清抗体显著高于FKC组。rt-PCR结果显示，从免疫后第4天开始，头肾、脾脏中免疫因子IgM、IL-1β、MHC-Iα、MHC-IIβ、CD4、CD8的表达量均出现升高，FKCA组头肾中IgM、IL-1β、MHC-Iα、CD8的表达峰值显著高于FKC组。酶活结果显示 ...
李 姣姣 +6 more
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Safety Science and Technology, EarlyView.Based on the challenges and motivations of global PFAS bans, this review highlights recent advances in strategies achieving UL‐94 V‐0 flame retardancy in polycarbonate while maintaining critical comprehensive performances, offering perspectives for future R&D. ABSTRACT This review focuses on the recent advancements in the development of UL‐94 V‐0 rated
Ting Sai +8 more
wiley +1 more source