Results 51 to 60 of about 9,904 (178)

Assessing the legal, illegal, and gray ornamental trade of the critically endangered helmeted hornbill

open access: yesConservation Biology, Volume 38, Issue 5, October 2024.
Abstract Monitoring wildlife trade dynamics is an important initial step for conservation action and demand reduction campaigns to reduce illegal wildlife trade. Studies often rely on one data source to assess a species’ trade, such as seizures or the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) trade data ...
Chloe E. R. Hatten   +5 more
wiley   +1 more source

适应中国应用场景需求和政策环境的电网侧储能商业模式研究 [PDF]

open access: yes全球能源互联网, 2019
随着储能技术的进步以及电动汽车大规模推广带来的动力电池产能升级,电化学储能的成本快速下降,储能技术已逐步应用于电力系统各个环节。近期,中国多个省部署电网侧储能示范项目,电网侧储能规模快速提升,但目前尚缺乏成熟的商业模式。介绍了电网侧储能的应用现状,从储能在电力系统应用价值的角度详细分析了电网侧储能的应用场景,结合典型国家电网侧储能政策环境和中国电力体制改革情况分析,考虑投资主体、成本、电价等因素,研究提出中国电网侧储能潜在的典型商业模式及相关政策建议,引导电网侧储能健康有序发展。
胡静, 李琼慧, 黄碧斌, 冯凯辉
doaj   +1 more source

Establishing a protected area network in Xinlong with other effective area‐based conservation measures

open access: yesConservation Biology, Volume 38, Issue 4, August 2024.
Abstract Protected areas (PAs) are pivotal to biodiversity conservation, yet their efficacy is compromised by insufficient funding and management. So‐called other effective area‐based conservation measures (OECMs) present a paradigm shift and address PA limitations.
Xing Chen   +6 more
wiley   +1 more source

An evaluation of digital inclusion response policies for elderly in China

open access: yesPolicy &Internet, Volume 16, Issue 2, Page 294-316, June 2024.
Abstract Digital inclusion is related to the physical and mental health of the elderly, and the relevant policies formulated by the government have an important impact on it. This article analyzes 69 policies related to digital inclusion of the elderly released by the central government of China.
Ying Zhao, Boyu Zhu
wiley   +1 more source

NFT:基于区块链的非同质化通证及其应用

open access: yes智能科学与技术学报, 2021
基于区块链的非同质化通证(NFT)是一种记录在区块链上的数字资产所有权,具有唯一性、不可替代性、不可分割性等特征。作为智能经济中的核心要求,NFT目前已被广泛应用于收藏品、加密艺术品和游戏中。首先介绍NFT的相关概念、特征和发展历程,分析NFT的核心要素和典型应用领域,并指出目前NFT在产权、价值、技术、监管等方面面临的问题与风险;然后介绍NFT的研究现状,并在此基础上提出NFT在价值评估、交易模式与定价机制方面的研究问题;最后对NFT驱动的数字资产化趋势进行展望。
秦蕊   +5 more
doaj  

Inequalities in public funding: Are hospital‐based dental services funding models in Australia logical?

open access: yesWorld Medical &Health Policy, Volume 16, Issue 2, Page 198-207, June 2024.
Abstract The availability of hospital‐based dental services across Australia varies with a number of hospitals disestablishing dental departments due to rising costs. However, the perceived costs are difficult to quantify as funding models used to capture activity are not uniform across health facilities.
Pritam Daniel Sundaresan   +3 more
wiley   +1 more source

Credit, gender, and food security: Empirical evidence of determinants to access, affordability, and consumption in Cameroon

open access: yesWorld Food Policy, Volume 10, Issue 1, Page 48-85, May 2024.
Abstract Despite receiving considerable attention, food insecurity remains a salient issue, especially in sub‐Saharan Africa. Among other factors, limited access to credit is one of the direct drivers of food insecurity. Hence, interventions such as credit, which improve household income, may be important in improving food security.
Emmanuel Kyeremateng   +3 more
wiley   +1 more source

A Hilbert-type inequality related to the higher derivative of cotangent function(一个关联余切函数高阶导数的Hilbert型不等式)

open access: yesZhejiang Daxue xuebao. Lixue ban
By introducing multiple parameters, and using partial fraction expansion of Cotangent function, a new Hilbert-type inequality defined in the whole plane with the constant factor related to the higher derivative of cotangent function is established. Also,
时小春(SHI Xiaochun)
doaj   +1 more source

Chinese script readability in single line display window(单行窗口显示的汉语文本可读性)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2003
从认知工效学的角度出发,本文对单行窗口显示条件下的汉语文本阅读进行了一系列研究.研究涉及的显示方式包括跳动引导式、平滑滚动引导式和快速系列视觉呈现式(RSVP)等3种,显示参数包括窗口大小、显示速度、跳动步幅、词切分、字间距以及显示速度控制方式等.研究结果表明在单行窗口条件下,影响阅读绩效的主要参数是显示速度、窗口大小、跳动步幅(仅在跳动引导式中)和字间距.与英文不同,本文发现汉语阅读时词步幅未能使阅读绩效提高,且字间距的增大会引起跳动引导式阅读绩效的下降.在呈现方式上 ...
TAORong(陶嵘)   +2 more
doaj   +1 more source

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