Results 61 to 70 of about 7,761 (168)

Design and Implementation of Residential Property Management Information System [PDF]

open access: yes, 2015
随着社会的进步及互联网信息化的发展,信息化管理已成为现代小区物业管理公司的迫切需求。目前,很多企业都运用计算机信息化系统来进行生产管理,从而提高工作效率和服务满意度。因此,根据信息化技术的发展需求,物业管理信息化建设需做好理性规划和实施,避免脱离实际,造成资金浪费。 本文主要介绍了小区物业管理信息系统的设计与开发过程,从基础应用、需求分析、系统设计、架构实现等方面对系统采用的关键技术进行了详细的介绍。其中,需求分析主要详细介绍了物业管理这一领域的业务需求模型及业务流程;系统设计和架构实现采用基于 ...
胡美莲
core  

Research on Economic Scheduling of Active Distribution Networks With Inclusion of Data Center and Energy Storage [PDF]

open access: yes
ObjectivesTo improve the new energy consumption capacity of the power grid, reduce operational costs for power generation companies, and address issues such as increased network losses and reduced new energy consumption when large-scale renewable energy ...
LI Ji, MA Haoran, WANG Weiqing, YUAN Zhi
core   +1 more source

Importance of connectivity for carnivore richness and occupancy in fragmented biodiversity hotspots

open access: yesConservation Biology, Volume 39, Issue 6, December 2025.
Abstract Structural connectivity affects wildlife movement between habitat patches, contributing to the persistence of wildlife populations and their resilience to human‐induced and environmental changes. However, its importance to wildlife population persistence remains unclear, particularly in fragmented landscapes, where there are additional co ...
Cindy M. Hurtado   +12 more
wiley   +1 more source

土壤直埋单根电缆暂态温升热路模型的验证试验

open access: yesGaoya dianqi, 2021
为提高电缆暂态温升计算的便捷性与准确性,文[1]提出了一种新的集总参数模型,并通过仿真计算进行了验证。为进一步验证该模型结构及参数提取方法的可信性,发现实践中模型应用可能存在的问题,选取了两种不同类型、不同部位温度评估需求的电缆开展真型试验研究。试验过程中,模型计算结果与真型试验测试结果误差均小于3 K,能够满足运行的需要。验证试验结果表明,模型结构是合理的,参数提取方法是可信的;参数提取的数据基础不仅可来自于仿真计算,而且可以源于实测数据,这既丰富了数据来源 ...
傅晨钊   +5 more
doaj  

Coexistence and habitat restoration planning for the reintroduction of Spix's macaw

open access: yesConservation Biology, Volume 39, Issue 6, December 2025.
Abstract Spix's macaw (Cyanopsitta spixii) is one of the world's most endangered species. Native to the Caatinga of northeastern Brazil—a region marked by significant socioeconomic vulnerability—the species was considered extinct in the wild in 2000. A reintroduction project, however, returned it to its natural habitat in 2022. The long‐term success of
Ugo Eichler Vercillo   +3 more
wiley   +1 more source

OLP技术及其实现机制问题分析

open access: yesGuangtongxin yanjiu, 2011
随着业务需求的剧增,业内对直接承载业务的传输系统的安全性提出了更高的要求,OLP(光纤线路自动切换保护)以其响应速度快、切换时间短等特点,在高速率光传输网中获得了广泛应用,但同时也给网络的维护管理带来了新的问题和挑战。文章从OLP机制的原理入手,深入剖析OLP在现网应用中存在的实际问题,创新性地提出了OLP改进方案,该方案能更快、更好地适应未来业务质量的实际需要。
王占京, 陈婧华
doaj  

考虑综合需求响应的园区综合能源系统优化配置

open access: yesGaoya dianqi, 2021
园区综合能源系统是用户侧多能源耦合与供应的典型形式,而综合需求响应(integrated demand response,IDR)则是实现多种能源间耦合互补关系的重要应用,而目前的园区综合能源系统规划研究并未考虑IDR的应用。为了进一步激发园区综合能源系统中的多能互补特性,提升规划的灵活性和经济性,文中提出了一种考虑综合需求响应的园区综合能源系统优化配置模型,其在建立PIES内部各能量转换设备和能量存储设备数学模型的基础上,以包含投资、运行、维护和IDR成本的全寿命周期成本最小为目标函数进行建模 ...
高强   +5 more
doaj  

Prospects and perils in the geospatial turn of conservation

open access: yesConservation Biology, Volume 39, Issue 6, December 2025.
Abstract Conservation has embraced advances in big data and related digital technologies as key to preventing biodiversity loss, especially in the identification of areas of conservation priority based on spatial data, which we call the big geospatial data turn.
Jocelyne Shimin Sze, Laura Aileen Sauls
wiley   +1 more source

The Study of the Demand Management Issues of Tax Services Based on Xiaoshan District Hangzhou City Zhejiang Province [PDF]

open access: yes, 2017
纳税服务是税务部门与纳税人沟通的重要环节,是税务部门的基础性工作。而纳税服务体系是税收征管体系的奠基石,因此做好纳税服务需求管理工作至关重要。然而由于实际工作中纳税服务各主体,即税务机关、纳税人以不同的角度看待税务工作,因此形成不同的对需求的理解。相较于自然人纳税人,企业纳税人对纳税服务的理解往往更深入,纳税服务需求明确。因此本文从企业纳税人这一视角,剖析纳税服务需求管理问题。 随着市场经济发展,企业纳税人对纳税服务提出更高的需求,逐渐形成层次化、多样化的涉税服务需求 ...
周青峰
core  

Resilience Enhancement Strategies for Power Systems Under Extreme High-Temperature Weather [PDF]

open access: yes
ObjectivesTo address the impact of extreme high-temperature weather on the supply and demand balance of power systems, a medium- to long-term method for enhancing power system resilience is proposed.MethodsFirst, the coupled “source-load” output ...
XIA Wenjie   +5 more
core   +1 more source

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