Results 81 to 90 of about 45,553 (198)

100Gbit/s以太网关键技术研究及实现

open access: yesGuangtongxin yanjiu, 2012
文章首先介绍了100Gbit/s以太网及传输的关键技术,然后分析了现有商用高速光电子器件状况,介绍了烽火通信科技股份有限公司在100Gbit/s以太网接口及设备方面的研究进展和成果,以及4×25Gbit/s信号在常规G.652和G.657光纤上50km无误码传输的研究研究进展。研究成果表明,100Gbit/s以太网技术已经成熟,可以实现商用。
吕建新   +4 more
doaj  

Study on Alleviation Mechanism of Hydrogen Sulfide on Copper Stress in Rice Seedlings [PDF]

open access: yes, 2015
硫化氢(hydrogensulfide,H2S)是继一氧化氮(nitricoxide,NO)、一氧化碳和(carbonmonooxide,CO)之后被广泛关注的气体信号分子,低浓度的H2S在动物、植物和微生物中被证实参与了众多生理生化过程,调节了有机体的生长发育。H2S在植物应对盐害、干旱、重金属胁迫、冷热胁迫中发挥重要作用,增强植物对逆境的抵抗力。 铜污染是环境污染中不容忽视的一类重金属污染。本文中,我们以水稻(Oryzasativa)为材料,研究了H2S对铜胁迫的影响。结果显示低浓度的H2S ...
尹珊珊
core  

The underappreciated roles of fog and dew on vegetation and biocrusts

open access: yesNew Phytologist, EarlyView.
Summary Fog and dew represent minor components of ecosystem water budgets in most ecosystems. However, fog and dew can play an essential role in ecosystem dynamics and are particularly important for water‐limited systems. In addition to serving as direct water inputs, fog and dew can influence microclimate and water redistribution, thereby promoting ...
Lixin Wang, Yue Li, Mengyun Sun, Na Qiao
wiley   +1 more source

肝豆状核变性的系列研究

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 1996
肝豆状核变性(WD)是一种较为常见的常染色体隐性遗传、铜代谢障碍性疾病。作者从80年代初开展WD的研究,至今已对WD的临床表现、发病机理、病理改变、遗传学、诊断、治疗等各方面进行了系统研究,研究手段从临床总结开始,接着开展生化、病理、影像学研究,进而采用细胞培养、分子生物学等新技术,紧紧围绕患者早期诊断和杂合子检测这个中心,层层深入,取得了很大进展,尤其是在WD离体培养皮肤成纤维细胞模型和分子生物学研究方面已达到国际先进水平。
doaj  

冷弯型钢构件腹板压跛研究进展与趋势

open access: yesJianzhu Gangjiegou Jinzhan, 2023
随着冷弯型钢在建筑行业中的应用和发展,对其构件破坏模式及相应承载力计算方法的研究不断深入。冷弯型钢构件板壁较薄,在支承反力或横向局部集中荷载作用下,未加劲腹板区域受到高密度局部集中荷载作用易发生腹板压跛破坏,在设计过程中应当充分重视。对冷弯型钢构件腹板压跛研究进展进行了总结,阐述了冷弯型钢构件腹板压跛研究的3个发展阶段,同时,归纳了各国冷弯型钢结构设计规范中有关腹板压跛的相应条例,指出了目前腹板压跛研究领域亟待解决的关键问题,并对冷弯型钢构件腹板压跛研究趋势予以展望。
李海汀   +4 more
doaj  

藁本内酯的研究进展 [PDF]

open access: yes, 2017
2005-2006 > Academic research: refereed > Publication in refereed journalVersion of ...
Du, JR, Qian, ZM, Wang, CY
core  

Accountability in Government Use of AI: Citizen Concerns and Preferences

open access: yesPublic Administration, EarlyView.
ABSTRACT Government adoption of AI opens the “pandora's box” of accountability, a core aspect of public value. Despite the centrality of governmental AI accountability, citizens' concerns and preferences in holding governments accountable for AI usage remain poorly understood.
Naikang Feng, Yanto Chandra
wiley   +1 more source

SF6分解产物检测技术在青海电网电气设备故障诊断中的应用

open access: yesGaoya dianqi, 2012
检测运行中电气设备内SF6分解产物进行故障诊断是一项崭新的技术,目前已在电力系统得到了应用。青海电力系统于2008年开展此项技术研究,先后对多座110、330、750 kV变电站进行SF6分解产物检测及故障诊断工作,笔者对几年来此项工作的开展情况进行了总结、分析,为今后进一步开展研究应用奠定了基础。
路自强, 李玉海, 李后顺, 郑勇
doaj  

MNK, IRR and FGFR genes in Haliotis diversicolor: molecular cloning, expression analysis and identification of SNPs associated with growth traits [PDF]

open access: yes, 2015
杂色鲍(Haliotisdiversicolor)是我国南方重要的养殖鲍种,研究与杂色鲍生长相关的基因,分析基因的表达规律,并筛查基因中与生长性状相关联的SNP位点,对于深入了解生长性状调控的分子机制,培育具有优良性状的新品种具有重要意义。本研究将MAPK互作激酶(MAPkinase-interactingkinase,MNK)、胰岛素相关多肽受体(Insulin-relatedpeptidereceptor,IRR)和成纤维细胞生长因子受体(Fibroblastgrowthfactorreceptor,
何佩茹
core  

How Different Patterns of Policy Attention Drive Policy Diffusion: Evidence From China's River Chief System

open access: yesPolicy Studies Journal, EarlyView.
ABSTRACT Despite extensive research on policy diffusion, the ways in which policy attention influences this process remain underexplored. This study addressed this gap by distinguishing between three types of policy attention—political speeches, policy issuance and field visits—and investigating their differential impacts when delivered by central and ...
Xiangning Chen, Yahua Wang
wiley   +1 more source

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