Results 61 to 70 of about 35,429 (238)
大数据压缩策略是影响IoT时序数据存储系统性能的重要因素，而现有压缩策略缺乏针对NVM与IoT时序数据特性的优化机制。因此，提出了面向NVM的IoT时序数据多态协作压缩策略。首先，给出了IoT时序数据的组织结构。然后，针对IoT时序数据在一段时间内较稳定以及在用户态与内核态读写NVM适合的粒度差异较大的情况，设计了分层压缩策略。在用户态接收数据时，采用轻量级的数据压缩算法减少需存储的数据量，也减小了对IoT时序数据的存储效率的影响；针对IoT系统以查询和分析异常时序数据为主的特性，设计了深度压缩算法 ...
蔡涛, 雷天乐, 牛德姣, 戴健飞, 黄泽宇, 倪强强
doaj +1 more source
Financial Analysis and Risk Prevention of Internet Crowdfunding Finance------As an Example of Xiamen A Company [PDF]
, 2016 2011年7月，全国首家众筹平台“点名时间”成立，拉起了我国互联网众 筹行业的序幕。至此，随着互联网金融浪潮的到来，互联网众筹金融也迎来了 前所未有的发展机遇，各大小电商及专业投资机构纷纷试水众筹业，不少众筹 项目获得巨大成功，瞬时在社会各界引起巨大反响。然而，虽然众筹给投资者 带来了难得的机遇和回报，但其背后所暗含的巨大风险亦不容小觑，风险事件 频频发生。仅在2014年一年全国就有28多家互联网债权众筹平台破产倒闭。 而因为高平台风险所引发的诸如无法提现、资金非法挪用侵占、平台倒闭、集 ...
黄琳
core
Perceived costs as drivers of wildlife management preferences in rural Tanzanian communities
Conservation Biology, EarlyView.Abstract Effectively managing human–wildlife interactions is crucial for fostering coexistence on shared landscapes. Management options are most effective when aligned with the preferences of people directly affected by wildlife, yet little is known about how socioecological factors influence these preferences.
Christian Kiffner +10 more
wiley +1 more source
Research on the security and control mode of the energy and chemical group of Henan energy chemical group [PDF]
, 2015 企业内部治安保卫工作，肩负着维护企业安全稳定大局的重要使命，河南能源化工集团作为一个拥有490多个下属单位、20多万职工的企业集团，治安保卫工作开展的好坏，直接关系着企业能否有一个安全稳定的发展环境，关系着20万职工的人身财产安全和国有资产安全。当前，国有企业正在进行改革，河南能源现有的自上而下成立保卫部门的治安保卫工作管控模式也面临着新形势、新问题，也存在与实际不相适应的地方（如：企业内外部治安环境更加复杂、保卫人员待遇偏低、人员流动性大、补充保卫人员时审批程序耗时较长、人员招收困难 ...
董孟涛
core
Structured machine learning modeling to support conservation of deep‐sea benthic biodiversity
Conservation Biology, EarlyView.Abstract Biodiversity monitoring programs need to deliver accurate, timely, and actionable predictions. To establish a predictive monitoring program for deep‐sea benthos of the Santos Basin, Brazil, we developed a two‐stage structured model that allowed comparison of biodiversity predictions obtained from environmental simulations (2M‐Sim).
Gustavo Fonseca +23 more
wiley +1 more source
Gaoya dianqi, 2020 为了缓解风电因随机波动性对电网造成的冲击,增强风电的可控性,提出一种基于分频段补偿法的风水储微电网优化调度策略。该策略根据水电机组输出带宽,通过小波分解法对风电功率信号进行多尺度分解,得到水电机组和储能系统初级功率指令,再根据水机爬坡能力,对初级功率指令进行修正得到最终功率指令。基于MATLAB/Simulink平台建立了风水储微电网仿真模型,分析了所提调度策略与现有策略的控制效果,结果表明,所提调度策略能减小储能所需容量,降低储能配置成本;改善了微网内水机过渡过程,有利于微网稳定运行 ...
王源, 南海鹏, 关欣
doaj
Using customs data to understand overlooked trade in non‐CITES birds between Africa and Asia
Conservation Biology, EarlyView.Abstract The international trade in live birds poses risks to animals, people, and biodiversity. To effectively mitigate these risks, decision‐makers require information on the volume, dynamics, and direction of trade. Despite Africa once being the largest exporter of birds by region, very little data exist on recent trade in live birds not listed on ...
Alisa Davies +4 more
wiley +1 more source
Evaluating synthetic substitutes to reduce illegal harvesting and support species recovery
Conservation Biology, EarlyView.Abstract Providing synthetic substitutes is a widely promoted strategy to shift consumer demand away from wildlife products derived from threatened species. Yet, there is little evidence on whether product substitution prevents illegal or unsustainable harvesting and contributes to the recovery of threatened populations.
Aditya Shekhar Malgaonkar +17 more
wiley +1 more source
Gaoya dianqi, 2016 根据直流微电网的结构以及运行特点,分析了直流微电网中分布式发电单元和混合储能单元的控制策略。针对直流微电网中由于分布式发电单元输出功率的不稳定以及负载突变造成的直流母线电压波动问题,提出了一种基于直流微电源模块和混合储能模块的协同能量管理策略。该控制策略以直流母线电压为信号对混合储能模块的充放电模式进行控制。同时也搭建了含光伏微源单元和混合储能单元的仿真模型,通过MATLAB/Simulik仿真软件对混合储能的能流切换模式进行仿真 ...
张国军, 韩雪, 康成功, 张信
doaj
[Strategies for immunotherapy-related hepatotoxicity in liver cancer]. [PDF]
Zhonghua Gan Zang Bing Za Zhi, 2023 Zhi Y, Mao YM.
europepmc +1 more source