Results 31 to 40 of about 14,115 (167)

Research on Bilateral Multi-attribute Automatic Negotiation Based on Multi-objective Genetic Algorithm ——A Logistics Company in Purchasing Negotiation [PDF]

open access: yes, 2016
采购谈判是企业活动中很重要的一环,越来越多的企业管理者开始关注。现在很多的采购谈判都是一个买家,多个卖家,而谈判的属性又不单单是价格这个单一的属性,还包括质量、保修期、交货期、运费等等多个属性。另外不同的商家对不同的属性的偏好又有所不同,所以买方与卖方进行谈判时,一般的采购谈判需要各方人员参与谈判全过程,这样人员的占用导致了资源的耗费,时间的消耗也影响了企业运作的收益。而且传统谈判对谈判方的谈判技巧要求很高,如果一方谈判技巧不好,最后的谈判效果很不理想;传统的谈判还要在特定的时间,特定的地点进行 ...
王爱姣
core  

Reconceptualising Motivation as Material‐Semiotic Entanglements: Translanguaging in Graduate TESOL Education

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT Multilingual students in Anglophone universities often operate in survival mode. While translanguaging supports learning, critical gaps remain in understanding how translanguaging pedagogies transform and sustain motivation in English‐dominant contexts.
Melissa Jufenna Slamet, Julie Choi
wiley   +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  

Performance optimization and lightweight design of floating raft vibration isolation system based on RBF-PSO algorithm [PDF]

open access: yes
ObjectiveTo address the challenges of heavy workload and long iterative cycles in the lightweight design of floating raft vibration isolation system in engineering applications, this study proposes a lightweight design method based on RBF-PSO multi ...
Guanjun ZHANG   +3 more
core   +1 more source

Placental insufficiency markers to assess the risk of non‐chromosomal genetic conditions in early‐onset fetal growth restriction

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 4, Page 492-499, April 2026.
ABSTRACT Objectives To assess the value of placental insufficiency markers for estimating the risk of genetic anomalies in fetuses with isolated early‐onset fetal growth restriction (FGR), defined as an estimated fetal weight ≤ 3rd percentile diagnosed ≤ 28 + 6 weeks' gestation.
M. Armengol‐Alsina   +17 more
wiley   +1 more source

Research on Differential Evolutionary Multi-objective Optimization Algorithms Based on MOEA/D [PDF]

open access: yes, 2017
进化多目标优化算法是采用进化算法解决多目标优化问题,这种解决多目标优化问题的方法目前已经成为了智能优化领域研究的重点。在实际生活中存在着许许多多的多目标优化问题,这些问题的不同目标之间有时是相互促进的,有时又是相互矛盾的,解决这些问题的目的是找到一组折衷的解。目前,进化多目标算法广泛的应用于证券组合投资、物流路径规划、网络路由、数据挖掘等领域中。在理论研究方面,进化多目标优化算法的重要研究目标是改善算法的收敛性和分布性。本文基于差分多目标优化算法MOEA/D,使用了多种改善MOEA ...
林书富
core  

Mistimed surveys lead to underestimated migratory bird impacts from wind farms

open access: yesJournal of Applied Ecology, Volume 63, Issue 4, April 2026.
Current guidance and approaches to surveying migratory birds at windfarm developments in Australia are insufficient. Evidence‐based alignment with seasonal presence is needed to improve biodiversity assessment standards, ensuring renewable energy expansion proceeds in a way that better safeguards migratory species and supports global biodiversity and ...
Xu Shi   +7 more
wiley   +1 more source

含电动汽车混合储能系统的微网多目标经济优化运行

open access: yesGaoya dianqi, 2017
为了实现分布式电源组成的微网能以更为经济、灵活和环保的方式运行,充分发挥分布式电源的发电优势。针对微网优化调度的问题,提出以电动汽车同时作为负荷和发电单元且计及制热收益的微网多目标优化模型,以经济效益最大化、环境成本最小化作为微网多目标优化问题。应用非劣排序遗传算法NSGA-II,进行多目标优化求解,求得Pareto前端解,从而获得微网最优调度策略。通过算例验证了所提模型、策略和算法的有效性。
黄山   +4 more
doaj  

Research on Dynamic Multi-objective Optimization Problems Based on Memetic Algorithm [PDF]

open access: yes, 2012
在现实世界中,往往存在着许多动态的多目标优化问题,由于此类问题具有多个依赖时间或环境的目标,并且这些目标可能是相互冲突、不可公度的,加之此类问题的最优解会随着时间而发生改变,因而通常很难设计出一种通用而又有效的方法来求解此类问题。本文提出了一种基于模因算法(MA:MemeticAlgorithm)的动态多目标优化方法,并进行实验,获得了一些有意义的结果。 论文的主要工作如下: (1)问题描述与相关理论研究综述。主要包含动态多目标优化问题的定义及其特征的描述 ...
李艺贞
core  

Evaluating past and future contributions of conservation programs to species recovery

open access: yesConservation Biology, Volume 40, Issue 2, April 2026.
Abstract Impact evaluation of conservation actions is a crucial step in global efforts to curb the biodiversity crisis. Through robust impact evaluation, practitioners can assess the effectiveness of conservation strategies and optimize the use of limited resources.
Rebeca E. Young   +10 more
wiley   +1 more source

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