Results 61 to 70 of about 33,590 (182)
Shuitu Baochi Xuebao, 2001 探讨了泥石流入汇后随主河水流运动的几种可能形态和运动特点,分析了泥石流入汇与主河河床演变的关系.根据所提出的河型分类模式,分析了泥石流对河型形成的影响,按河岸可动性与河床可动性的比值,将主河河床演变分为单股和多股;按主河水沙搭配指数的大小将主河分成低滩和高滩.对不同类型河流河床演变进行了分析,为进行泥石流入汇对主河水沙运动与河床演变的影响的研究奠定了基础.
doaj
Policy Studies Journal, EarlyView.ABSTRACT We use grid‐group cultural theory (CT) to specify underspecified aspects of the Advocacy Coalition Framework (ACF). Our theoretical synthesis of CT and the ACF provides, first, an exhaustive typology of policy actors and their cultural cognitive biases that entail, guide, and constrain policy core beliefs about problem definitions and ...
Metodi Sotirov, Brendon Swedlow
wiley +1 more source
Leveraging an Unhappiness Lens for Smarter Policies
Policy Studies Journal, EarlyView.ABSTRACT Traditional policy research has largely focused on enhancing happiness or well‐being, privileging positive outcomes as the primary metric of success. We argue that a systematic focus on the drivers of unhappiness—rather than solely on happiness—offers a complementary analytical framework that can uncover hidden societal deficits and broaden ...
Marine Coupaud +2 more
wiley +1 more source
野生动物学报, 2011 2004年3～9月,我们对卧龙自然保护区核桃坪基地野化培训大熊猫个体"祥祥"的夜宿地组成结构进行了初步观察,并采用主成分分析（PCA）对471组夜宿地数据所涉及的7种结构因子（廊道、竹林、余竹堆、岩石、乔木、倒木、灌草丛）进行了统计分析。结果表明:在大熊猫"祥祥"的夜宿地结构中,"廊道"、"竹林"和"乔木"是最主要的3个因子。经单因素方差分析检验表明,在对地势的选择中,"祥祥"偏爱坡度5°～30°的缓坡竹林 ...
谢浩 +13 more
doaj
Jingshui jishu【目的】本文旨在通过探究不同河道淤泥重金属污染特征及存在的生态风险，为淮安市城乡河道重金属污染防治和生态修复提供科学依据。【方法】以淮安市5条拟清淤河道为研究对象，采用电感耦合等离子体质谱仪对河道淤泥重金属开展特征分析，运用几种重金属污染评价方法对重金属污染程度进行评价，并采用相关性分析和主成分分析对重金属的污染来源进行分析。【结果】里运河、洪福河、大寨河、小盐河、新涧河5条河道淤泥中Cd元素含量均高于淮安市土壤背景值，但5条河道淤泥的6种重金属含量均未超过《农用污泥污染物控制标准》
Yin Liqun +5 more
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Ordinal Scale Analysis Method for the Questionnaire Survey regarding Medical Welfare : Number of the Scale Category and Applicability of Parametric Method [PDF]
, 2016 川崎医療福祉大学平成27年
井上 信次
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Policy &Internet, Volume 18, Issue 2, June 2026.ABSTRACT In an era of proliferating but divergent data protection regimes, the European Union's rights‐based approach and China's sovereignty‐centric model have become two dominant poles of global data governance. This article examines how multinational enterprises navigate compliance under these dual systems and how that compliance is shaped through ...
Yiping Cao
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Governing by Ambiguity: Sociotechnical Imaginaries of Platforms in China
Policy &Internet, Volume 18, Issue 2, June 2026.ABSTRACT Besides clear policy directives, the unresolved and open‐ended elements in policy communication also create discursive politics. This article argues that ambiguity in policy communication reflects the state's exercise of power within a fractured sociocultural landscape.
Fangyu Qing, Ngai Keung Chan
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, 2008 目的：本稿では，雑誌を引用に基づき各学術分野ごとにクラスタリングするための新しい手法を提案する．対象：JCR2004 Science Edition CD-ROM版に収録されている5964誌の被引用データより，各誌の被引用比率ベクトルを作成し解析を行なった．方法：k-meansに基づく，独自に開発したクラスタリングツールを利用した．距離にはコサイン距離(1-cosθ)を用いてクラスタリングを行なった．結果：被引用比率ベクトル空間において各学術分野が形成すると見られるスパイク状の領域が確認された ...
児玉 閲, 天野 晃
core
Policy &Internet, Volume 18, Issue 2, June 2026.ABSTRACT AI‐generated images have become so good in recent years that individuals often cannot distinguish them from ‘real’ images. This development, combined with the rapid spread of AI‐generated content online, creates a series of societal risks. Watermarking, a technique that involves embedding information within the content to indicate their AI ...
Bram Rijsbosch +2 more
wiley +1 more source