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21.
光纤通道具有高带宽、低延迟、适宜远距离传输等特点,已用于构造高性能、高可用性的存储区域网,而光纤通道磁盘阵列是构成存储区域网的基本存储单元之一。本文介绍了一种光纤通道磁盘阵列FC-RAID3000的设计与实现,为海量数据快速,高可靠存储提供了一种可行的解 决方案。 相似文献
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《International Journal of Hydrogen Energy》2022,47(53):22545-22558
This work shows the results of the experimental assessment of the HI-SEA joint laboratory between Fincantieri, the main Italian shipbuilder, and the University of Genova. The HI-SEA system is a 240 kW real-scale test rig complete of auxiliaries, made up of 8 Proton Exchange Membrane Fuel Cell stacks installed on two parallel branches, which can operate independently or in parallel by means of two dedicated DC/DC converters. The experimental assessment is performed by considering: (i) Stationary performance; (ii) dynamic performance; (iii) a maritime operative profile defined together with Fincantieri. The experimental results obtained in this work demonstrated that the system can successfully respond to static, dynamic, and typical maritime operative load profiles. It was also assessed the ability of the system to work simultaneously with two parallel branches, by means of two DC/DC converters, which represents a clear advantage in terms of load sharing and redundance onboard for security issues. Furthermore, the present study gives important advice and criteria for the design, construction, and control of similar Fuel Cell complete systems for maritime applications, which is particularly relevant considering that experimental studies on complete Fuel Cell systems is still limited. 相似文献
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Fog computing has already started to gain a lot of momentum in the industry for its ability to turn scattered computing resources into a large-scale, virtualized, and elastic computing environment. Resource management (RM) is one of the key challenges in fog computing which is also related to the success of fog computing. Deep learning has been applied to the fog computing field for some time, and it is widely used in large-scale network RM. Reinforcement learning (RL) is a type of machine learning algorithms, and it can be used to learn and make decisions based on reward signals that are obtained from interactions with the environment. We examine current research in this area, comparing RL and deep reinforcement learning (DRL) approaches with traditional algorithmic methods such as graph theory, heuristics, and greedy for managing resources in fog computing environments (published between 2013 and 2022) illustrating how RL and DRL algorithms can be more effective than conventional techniques. Various algorithms based on DRL has been shown to be applicable to RM problem and proved that it has a lot of potential in fog computing. A new microservice model based on the DRL framework is proposed to achieve the goal of efficient fog computing RM. The positive impact of this work is that it can successfully provide a resource manager to efficiently schedule resources and maximize the overall performance. 相似文献
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Sol-Gel法制备NiTiSMA/FC多层薄膜复合材料的组成结构研究 总被引:1,自引:0,他引:1
研究用Sol—Gel法在NiTiSMA薄片基体上复合铁电陶瓷薄膜的工艺,讨论了热处理温度对铁电陶瓷层晶化的影响。结果表明,NiTi基体的高温氧化行为直接影响着铁电陶瓷层的结晶过程,并又随着陶瓷层结构的致密化该作用减弱。 相似文献
25.
Donghui Tang Shuang Tao Jinlian Ma Peijun Hu Dan Long Jun Wang Dexing Kong 《International journal of imaging systems and technology》2017,27(4):345-353
To study the effect of short cardio on obese male college students’ inhibitory control ability, we investigate difference on brain activation patterns before and after short cardio by analyzing the resting state fMRI data. The experiment results of this study show that short cardio can improve the inhibitory control ability of obese people. 相似文献
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通过抗渗抗冻系列试验 ,研究了FC料对提高混凝土抗渗抗冻性能的影响 ,并从微观结构角度分析了混凝土宏观性能提高的机理 .试验表明 ,在混凝土中掺用适量FC料 ,抗渗能力可达到S2 5以上 ,抗冻标号超过D30 0 ,完全可以实现绿色高性能混凝土的目标 相似文献
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当前物联网(IoT)应用的快速增长对用户设备的计算能力是一个巨大的挑战。雾计算(FC)网络可为用户设备提供近距离、快速的计算服务,为资源紧张,计算能力有限的用户设备提供了解决方案。该文提出一个基于区块链的雾网络模型,该模型中用户设备可以将计算密集型任务卸载到计算能力强的节点处理。为最小化任务处理时延和能耗,引入两种任务卸载模型,即设备到设备(D2D)协作群组任务卸载和雾节点(FNs)任务卸载。此外,针对雾计算网络任务卸载过程的数据安全问题,引入区块链技术构建去中心化分布式账本,防止恶意节点修改交易信息,实现数据安全可靠传输。为降低共识机制时延和能耗,提出了改进的基于投票的委托权益证明(DPoS)共识机制,得票数超过阈值的FNs组成验证集,验证集中的FN轮流作为管理者生成新区块。最后,以最小化网络成本为目标,联合优化任务卸载决策、传输速率分配和计算资源分配,提出任务卸载决策和资源分配(TODRA)算法进行求解,并通过仿真实验验证了该算法的有效性。 相似文献
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The effect of heat-treatment on foaming properties of ostrich albumen was investigated. At pH 7.5, coagulation of ovotransferrin (OT) resulted in minimum foaming capacity (FC) and maximum foam density (FD). While both exposure of sulfhydryl groups of ovalbumin (OV) and OT-OV interactions improved FC at lower pH, neither of them had beneficial effect on FC at pH 9. At pH 9, FC and FD were mildly affected by heat-treatment because of less aggregation of OT, then FC decreased due to covalent aggregates composed of ovomucin and OV, but at higher temperatures, higher level of OV unfolding resulted in enhanced FC. 相似文献