Results 51 to 60 of about 9,870 (187)
Sensing-then-transmission slot scheduling optimization for opportu-nistic spectrum access under the interference constraint of primary us-ers [PDF]
, 2013 A sensing-then-transmission slot scheduling scheme for opportunistic spectrum access under the interference constraint of primary users (PU) was proposed.First,the throughput of the cognitive radio system (CRS) with channel handoff mechanism and the ...
Fu-chun ZHENG +3 more
core +1 more source
Rare Metals, EarlyView.ABSTRACT In recent years, the field of magnetic materials has witnessed a paradigm shift from single‐function applications to multifunctional integration, driven by the growing demand for smart materials in advanced technologies. Among various magnetic systems, La(Fe, Si/Al)13‐series materials have emerged as particularly promising candidates due to ...
Irfan Liaquat +2 more
wiley +1 more source
考虑电-气-碳综合交易的跨国电网分散式电力调度—以规划的东北亚跨国电网为例 [PDF]
全球能源互联网, 2019 为了实现跨国电网的有序发展与协调运行，跨国层面的电力交易、天然气交易和碳交易的有机结合十分关键。为此，以电力系统为核心，考虑天然气交易与碳交易的相关耦合因素，建立了跨国电-气-碳综合交易模型。在上述综合交易的框架下，建立了跨国电网的动态电力调度模型，以实现全局效益的最大化。进一步地，为了保护各个国家的工业信息隐私，提出了分散式的跨国电力调度算法，将全局优化问题转化为各个国家的子问题迭代求解，得到满足给定精度的全局最优解。最后，对东北亚跨国电网仿真算例进行测试，分析讨论在不同电-气 ...
杨青润 +4 more
doaj +1 more source
Rare Metals, EarlyView.ABSTRACT The sluggish kinetics of the oxygen reduction reaction (ORR) necessitate developing oxygen electrodes with enhanced electrocatalytic activity for practical zinc–air battery applications. In this study, an iron‐doped copper sulfide electrocatalyst (CuFeNS‐PNC) anchored on metal–organic framework‐derived carbon substrates was designed, featuring
Taichong Chitboonyakasem +4 more
wiley +1 more source
Dual‐Stage Heat Treatment for Enhanced Hydrogen Storage Properties of Mg−Ni−Y Alloys
Rare Metals, EarlyView.ABSTRACT Mg−Ni−Y alloy is considered to be one of the most promising hydrogen storage materials, but its high dehydrogenation energy barrier hinders its practical application. A dual‐stage heat treatment (490°C × 4 h + 550°C × 4 h) is applied to optimize the microstructure and hydrogen storage performance of a vacuum‐melted Mg94Ni3Y3 alloy.
You Lv +6 more
wiley +1 more source
Rare Metals, EarlyView.ABSTRACT Polycrystalline SnSe thin film materials have gained increasing attention as a promising solution for fabricating microscale, flexible, self‐powered electronic components in the field of thermoelectric (TE) materials and devices. However, it is still a great challenge to simultaneously achieve preferred crystal orientation and optimize carrier
Wenxia Li +10 more
wiley +1 more source
Guangtongxin yanjiu, 2009 文章仿真验证了在差分相移键控（DPSK）解调时,通过调整延时线干涉仪（DLI）两臂的相对延迟来优化自由光谱范围（FSR）,使其大于传输比特率,能够获得比传统1 bit延迟更好的传输性能,并得到了FSR的最优值。优化FSR后的DPSK解调系统对光信噪比（OSNR）灵敏度和色度色散容限范围均有改善,对偏振模色散（PMD）的容忍度没有明显提高。
曹云, 杨壮, 陈德华, 叶荣富
doaj
, 2006 城市输水系统调度的核心问题是保证在满足城市需水量的前提下,以最经济的成本将水从河流和水库供给各需水单元。针对所建立的城市输水系统调度模型,分别在宏观调度周期上和微观路径分配上进行分解,简化了模型的求解过程,模型在厦门市输水系统调度中得到了应用 ...
刘元生, 吉国力, 郭思元
core
Optimizing CuO on 3D Ordered Macroporous CeO2 for CO Oxidation in Rich Hydrogen
Rare Metals, EarlyView.ABSTRACT CO preferential oxidation (CO‐PROX) in rich H2 is considered a feasible strategy to solve CO poisoning for fuel cells, but obtaining good activity at low temperatures is still a challenge. Herein, three‐dimensional ordered macroporous (3DOM) CuO/CeO2 catalysts were fabricated by a templating approach, with the metal–support interaction (MSI ...
Xiaohua Chen +7 more
wiley +1 more source
Cryptographic service optimization scheduling algorithm for collaborative jobs in cloud environment [PDF]
In response to the demand for collaborative computation of multi-cryptographic jobs in cryptographic on-demand services within a cloud environment, a multi-cryptographic job collaborative scheduling algorithm was proposed.
CAO Xiaogang +4 more
core +1 more source