Results 31 to 40 of about 11,729 (169)

Optimization method for cloud manufacturing service composition based on the improved artificial bee colony algorithm [PDF]

open access: yes, 2023
To improve the optimization quality, efficiency and stability of cloud manufacturing service composition, a optimization method for cloud manufacturing service composition based on improved artificial bee colony algorithm was proposed.Firstly, three ...
Haoquan QI   +4 more
core   +1 more source

Electronic Modulation of CoNi Nanoparticles by N‐Doped Carbon for Efficient Lignin Hydrogenolysis to Aromatic Monomers

open access: yesRare Metals, EarlyView.
ABSTRACT Cost‐effective and efficient non‐noble‐metal catalysts for selective lignin hydrogenolysis remain elusive, representing a significant challenge in biorefinery. Here, we prepared a nitrogen‐doped carbon supported CoNi bimetallic catalyst, which was successfully derived from zeolitic imidazolate framework (ZIF) via high‐temperature pyrolysis ...
Xingwei Luo   +3 more
wiley   +1 more source

基于遗传算法的换流变压器滤波装置的优化设计

open access: yesGaoya dianqi, 2007
阐述了新型换流变压器及配套滤波装置的接线方案和滤波器设计特点,在此基础上建立了以初期投资最小为目标函数的滤波装置数学优化模型,在采用遗传算法对优化模型进行优化设计时,考虑到优化模型的特点,采用了混合罚函数法将有约束问题转化成带有罚项的无约束问题的目标函数。最后针对具体的新型高压直流输电平台模型给出了滤波装置优化设计的实例,算例结果验证了该优化设计的正确性。
罗隆福   +5 more
doaj  

Heterogeneous information integration method for scheme decision making of industrial design

open access: yesXibei Gongye Daxue Xuebao, 2022
为有效融合工业设计方案决策中的异构信息, 引入云模型处理定性语言评价, 基于黄金分割方法将语言信息量化为云模型的数字特征, 分别构建语言值、区间数和实数相对优势矩阵。考虑决策过程的模糊性与不确定性, 将决策属性判断的自然语言采用区间标度量化, 构建非线性优化模型求解最优决策属性权重, 以最大似然估计实现群体决策的区间标度集结, 通过综合效用函数计算工业设计方案优劣。以某型指挥用控制台工业设计方案决策为例, 验证了所提方法能够有效融合异构决策信息, 辅助工业设计师和决策者准确把控意见并进行方案优选。
YANG Yanpu   +3 more
doaj   +1 more source

Research on Intelligent Optimization of Fiber Bragg Grating Filter and Raman Fiber Amplifier in DWDM System [PDF]

open access: yes, 2016
随着网络化大数据时代的到来,互联网应用和数据通讯业务的日益剧增,对通信网络的传输容量、速率和带宽提出了更高的需求。为了适应光纤通信系统对高速、大容量、超长距离的传输要求,密集波分复用(DWDM)技术成为一种能够有效挖掘和扩充光纤网络带宽资源并被广泛应用的技术方案。DWDM系统中新型器件的研究和开发进一步推动了光纤传输系统性能的提升。多信道光滤波技术和全波长光放大技术是DWDM突破网络容量瓶颈的两项最核心的技术支撑。其中,多信道光纤布拉格光栅(FBG ...
陈静
core  

From Microstructure to Macroscopic Performance: A Comprehensive Study on Low‐K Oxide‐Doped BNT–LST–NN Ceramics for Energy Storage

open access: yesRare Metals, EarlyView.
ABSTRACT Dielectric ceramics are popular for energy storage materials because of their rapid charge–discharge characteristics, whereas their low energy density and efficiency hinder their miniaturization and integration. In this work, the energy storage performance is significantly enhanced through introducing Al2O3 and TiO2 into the 0.425(Bi0.5Na0.5 ...
Qiansi Zhang   +9 more
wiley   +1 more source

弧线锥齿轮传动的模糊优化设计

open access: yesJixie chuandong, 1993
文中建立了弧线锥齿轮传动的模糊优化设计数学模型,介绍了弧线锥齿轮传动的模糊优化设计方法,对实例进行模糊优化设计,验证了本文提出的数学模型和设计方法。
李开世
doaj  

Realization of Pan Jiazheng′s extremum principle with optimization methods [PDF]

open access: yes, 2017
2007-2008 > Academic research: refereed > Publication in refereed journalVersion of ...
Cheng, YM, Wang, JA, Zhao, ZH
core  

Systematic Study of Fermi‐Level Pinning at Crystalline Metal/GaN Interfaces: First‐Principles Calculations and Diode Characterization

open access: yesRare Metals, EarlyView.
ABSTRACT The Schottky barrier height (SBH), which serves as a pivotal determinant of charge carrier injection efficiency in electronic devices, critically governs electrical behavior at metal/semiconductor interfaces. However, pronounced metal‐induced gap states at metal contact interfaces induce Fermi‐level pinning, which constrains the ...
Xiaofei Liu   +10 more
wiley   +1 more source

基于遗传算法的叠簧弹性联轴器的模糊优化设计

open access: yesJixie chuandong, 2004
针对传统机械优化设计的局限性 ,提出模糊优化建模、模型转化、遗传算法 (GA)优化求解的新思路 ,并对叠簧弹性联轴器进行了基于GA的模糊优化设计。
郭卫, 赵栓峰, 杨桂红
doaj  

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