Results 31 to 40 of about 21,895 (149)
温升2℃/1.5℃情景下世界主要区域BECCS发展潜力评估分析 [PDF]
BECCS(bioenergy with carbon capture and storage)发展对全球控制温升2 ℃/1.5 ℃具有重要影响。但是各区域的生物质资源利用现状、生物质能潜力以及碳封存潜力都会影响到各区域未来BECCS技术的发展,有必要对各区域的生物质能及未来可能的典型技术构成进行详细研究。梳理了全球综合评估模型中的主要情景设定与研究结果,结合全球各区域生物质能统计数据,分析了各区域生物质能和BECCS的发展。初步研究结果表明,未来的生物质能发展在基准情景下以ASIA ...
郑丁乾 +4 more
doaj +1 more source
本文采用气相色谱法测定杭州大曲的微量组分含量,并运用多元线性回归法研究其微量组分含量与酒质的数理关系.通过对48个酒样的回归计算得到杭州大曲质量评分、香评分和味评分与微量成分的线性关系式.研究结果表明,杭州大曲香评分与微量成分的相关情况优于味评分与微量成分的相关情况,质量评分与微量成分基本上呈线性关系,这为白酒的勾兑打下理论基础.
WUDan(吴丹) +2 more
doaj +1 more source
链式静止同步串联补偿器的IGBT开路故障软件诊断方法 [PDF]
链式静止同步串联补偿器以其模块化、可扩展、高压大容量的特点,在未来电网中应用前景广阔。在介绍静止同步串联补偿器调节电网潮流的原理基础之上,采用了针对链式拓扑的分层控制策略,包括系统级、装置级和模块级的控制。然后,针对链式静止同步串联补偿器常见的IGBT开路故障,提出一种软件故障诊断方法。该方法无需增加额外的测点,可作为常规硬件检测方法的补充和后备方案。最后,仿真验证了静止同步串联补偿器的控制策略和IGBT开路故障软件诊断方法的有效性。
曾洪涛 +5 more
doaj +1 more source
First confirmed breeding of the Brown Hornbill in China, documented through cooperative feeding in Shangyong Protected Area. ABSTRACT The Brown Hornbill (Anorrhinus austeni), a Near Threatened frugivore, reaches the northern edge of its distribution in southern Yunnan, China, yet breeding had not been previously documented with site‐attributed nests in
Junsong Li +8 more
wiley +1 more source
Growing Demand and Uneven Supply: Eight Years of Nature Education in China 需求增长与供给不均:中国自然教育八年发展回顾
ABSTRACT This study examines the role of nature education in advancing conservation and sustainability in China between 2014 and 2023. Drawing on national survey reports and historical–comparative methods, it analyses the dynamics of public demand, institutional supply, and practitioner capacity.
Qi Yunxi, Lyu Xiang, Huang Yu
wiley +1 more source
This research reveals the functional stability of mixed species foraging flocks (MSF) and their foraging height change with different taxonomic differences along the elevational gradient at Knuckles Montane Reserve, Sri Lanka. This offers new insights into how MSFs sustain with the elevational gradients supporting the altitudinal shifting species ...
Vimukthi. R. Gunasekeara +3 more
wiley +1 more source
This study examines the Mawphlang Sacred Forest in Meghalaya as a culturally embedded model of community‐led conservation. Drawing on qualitative fieldwork, it highlights how spiritual reverence, sacred taboos, and ancestral authority shape ecological stewardship, complementing formal governance systems.
Mrinal Saikia
wiley +1 more source
随着分布式能源的快速发展,传统的中心化能源交易系统遇到了建造和维护中心化数据库的成本较高、数据被篡改后会酿成严重后果和难以保障用户隐私这三大问题。针对这些问题,设计了一种基于联盟链的去中心化能源交易系统。首先,分析了该系统的组成部分,利用联盟链的准入机制对用户进行监管。介绍了该系统的交易流程,包括网络节点的配置,使用数字证书注册管理员和用户,借鉴链上链下协同架构实现分布式交易撮合等。接着,介绍了该系统使用的分布式交易撮合算法。然后,利用Hyperledger Fabric平台研发了该系统 ...
周鑫, 邓莉荣, 王彬, 潘昭光
doaj +1 more source
将用户侧电、热、气等多种形式能源集成构建微能源系统,能够综合考虑多能流的转换、存储与传输过程中的互补特性,有利于提升系统的整体能源利用效率。然而,系统中不同形式能量的物理属性和传输特性差异较大,现有模型在研究多能流的传输和转换过程时,难以完整考虑热量传输约束及其对能量转换的影响。针对微能源系统中的综合能量管理问题,构建了热力系统中换热器的非线性传热模型,并考虑了热量传输对能量转换效率的影响。同时,结合光伏电池、储能电池、热泵、燃气锅炉、太阳能集热器及相变储热装置建立了微能源系统中能量传输与转换的整体模型,
苟星 +5 more
doaj +1 more source
Urbanization may alter bird foraging. Austral Parakeets (Enicognathus ferrugineus) in Patagonia rely on introduced plants in urban areas, especially in winter, despite preferring natives in the wild. This seasonal reliance on introduced species highlights urbanization trade‐offs and underscores the need to manage green areas with native plants to ...
Rocío Bahía +2 more
wiley +1 more source

