Results 21 to 30 of about 10,197 (200)
The effects of ubiquitination inhibitors Thalidomide and PYR-41 on cross-presentation of dendritic cells [PDF]
, 2016 树突状细胞(Dendriticcells，DCs)是机体最为重要的抗原提呈细胞(Antigenpresentingcell，APC)。DCs对抗原的交叉提呈是指外源性抗原被DCs摄取和加工后，与MHCI类分子结合形成CD8+特异性抗原肽-MHCI类分子复合物的过程，可使T细胞分化为CD8+特异性细胞毒T细胞(CytotoxicTlymphocyte，CTL)。甘露糖受体(Mannosereceptor，MR)是DCs表面重要的的模式识别受体(Patternrecognitionreceptor，PRR)，
游翔
core
Narrative formatting, chronotopic orderings, and moralization in ex‐gay stories
Journal of Linguistic Anthropology, Volume 36, Issue 1, May 2026.Abstract Formatted stories rely on spatiotemporal cues to evoke recognizability through linearity, which prescribes a particular template for meaning‐making. This article examines stories narrated by ex‐gay members of a Christian organization in Singapore and considers how chronotopes within the stories are ordered to regiment ways of feeling for ...
Vincent Pak
wiley +1 more source
基于MEEMD和SVM的贯通式同相牵引直接供电系统牵引网故障识别
Dianci bileiqi, 2021 针对贯通式同向牵引直接供电系统牵引网故障识别,提出了一种基于改进总体平均经验模态分解和支持向量机的故障识别方法。利用PSCAD仿真平台搭建3种不同类型(雷击故障,雷击干扰,接地故障)的故障模型,通过模拟仿真得到故障暂态电流,并对其解耦得到故障电流相模分量。采用MEEMD算法对故障电流相模分量进行分解,提取特征向量,通过SVM工具箱进行故障识别。为了验证SVM在故障识别中的优越性,通过对比概率神经网络故障识别,结果表明SVM在故障识别中具有更高的正确率。
庄启康 +4 more
doaj
The Research and Application of the Investigation and Comparison of Face Recognition System [PDF]
, 2015 在最开始，人脸检测识别技术是在数字信息自动识别人脸的系统中的定位环节被提出的，由于该技术具有广泛的应用领域，使其理论研究价值日渐重要。近年来，在模式识别、图象处理、人工智能化等领域，该技术扮演了重要角色。 与人体其他的生物特征——DNA、虹膜、指纹等相比，人脸特征多个优点，包括自然性、非接触性、唯一性等，使用生物个体的脸部器官、肤色等方法进行身份验证识别被多数人所接受。人脸识别的目的在于用计算机自动处理某些信息系统，以代替人去完成分类及系统辨识的任务。模式识别是人脸识别的重要理论基础和环节 ...
朱勤挺
core
Risk, Hazards &Crisis in Public Policy, Volume 17, Issue 1, March 2026.ABSTRACT Hybrid crisis governance – combining hierarchical control with networked collaboration – has gained increasing attention in the public policy and crisis management literatures. Yet, the concept of hybridity remains crude and underdefined, limiting its analytical utility.
Svante Aasbjerg Thygesen +2 more
wiley +1 more source
MLKL limits inflammatory responses through negatively regulating Toll-like receptor signaling pathway [PDF]
, 2015 炎症是机体清除有害刺激时做出的保护性反应，同时也是修复受损组织的一个过程。先天性免疫对微生物感染、组织损伤等造成的炎症起到了重要作用。但是，先天性免疫信号必须经过严格的调控，才能避免过于强烈的炎症反应对机体造成的不必要的伤害。Toll样受体在宿主识别病原体的入侵、激活炎症反应的过程中发挥了关键作用，因此，关于Toll样受体信号通路的负调控的研究显得尤为重要。本论文的研究发现，混合系蛋白激酶样结构域蛋白（mixedlineagekinasedomain-likeprotein，MLKL ...
庄秋宇
core
Disaster Cross‐Sector Collaboration Networks: Evidence from Four Historical Disasters
Risk, Hazards &Crisis in Public Policy, Volume 17, Issue 1, March 2026.ABSTRACT By conducting content analysis and social network analysis of media coverage of four historical disasters (i.e., the 2011 Joplin Tornado, 2013 Moore Tornado, 2017 Hurricane Harvey, and the 2023 Maui wildfire), this study uncovered characteristics of cross‐sector disaster collaboration networks.
Xiaochen Angela Zhang, Jonathan Borden
wiley +1 more source
Gaoya dianqi, 2017 振荡波电压法因其无损检测特性被广泛应用于局部放电检测中,而目前缺乏对振荡波电压下电缆故障类型的模式识别研究。为此,笔者根据常见的电缆缺陷类型,制作了4种10 kV交联聚乙烯电缆中间接头人工缺陷模型,对4种缺陷模型施加振荡波电压并测量局部放电信号;提出以局部放电信号正负半波统计算子作为模式识别的输入特征量,采用支持向量机分类器对4种典型电缆缺陷进行模式识别;并将识别结果与采用人工神经网络的模式识别结果进行对比,验证了该方法的有效性。结果表明 ...
陆国俊 +4 more
doaj
Design and Implementation of Face Recognition System Based on OpenCV and JavaCV [PDF]
, 2016 随着计算机和互联网的不断发展，在人工智能领域思想理论取得了一系列的发展，作为人工智能领域中发展较为突出的人脸识别技术取得了较为快速的发展。随着国家经济急速的发展，在社会各个领域对人脸识别技术的要求不断增加。人脸识别技术应用领域广泛，可以毫不夸张的说几乎可以覆盖整个社会的各个方面。上至国家信息安全，下到民生建设都有广泛的应用领域。现如今的生活中主要使用输入密码、插卡、获取口令等方式来保护个人信息和财产安全，这些传统的方法具有安全性低、易忘、易丢等缺点。随着技术的发展这些传统验证方式受到新技术的挑战 ...
江桥
core
Policymaking for Emigrants in Latin America and the Caribbean: A Mixed‐Methods Study
Latin American Policy, Volume 17, Issue 1, March 2026.ABSTRACT While scholars have identified models of political emigrant policies across countries, we still lack an understanding of how these models come about and persist. Using a sequential mixed‐methods approach—including quantitative analysis of policy mixes in 22 Latin American and Caribbean countries and a comparative case study of Colombia and ...
Luicy Pedroza, Pau Palop‐García
wiley +1 more source