Results 51 to 60 of about 14,115 (167)
Subsidies, Net Zero Transition and Public Debt: An Analysis for the Oil and Gas Industry in Brazil
Latin American Policy, Volume 17, Issue 1, March 2026.Abstract Despite awareness of the challenges in promoting the decarbonization of the economy, explicit fossil fuel subsidies have increased considerably worldwide in the past decade, reaching an all‐time high at US$1 trillion in 2022. Considering the net‐zero transition and the increase of modern public debt, this article assesses the most relevant ...
Fernando Inti Leal +2 more
wiley +1 more source
Gaoya dianqi, 2007 针对弹簧设计中簧丝直径、弹簧中径、工作圈数等结构参数均为标准值或是离散变量,且不可避免地存在加工误差等因素使弹簧实际尺寸偏离设计值,导致弹簧力特性改变等实际问题,提出了以弹簧刚度误差最小、在弹簧尺寸变化时弹簧刚度的可能最大变化量最小,并使弹簧的质量最轻的多目标综合优化方案。通过定义功效系数来协调各子目标之间的关系而使多目标综合优化降为单目标优化。结合分闸弹簧的结构特点及技术指标,采用混合离散优化等技术手段进行求解,获得了满足工程实际要求的分闸弹簧的最佳结构参数,使分闸弹簧的力特性得到了改善。
陈刚, 孙波, 王尔智
doaj
Multi-objective optimization and simulation on 8-rod-mechanism working device of loaders [PDF]
, 2009 提出了一种实用性和可操作性较强的八杆机构多目标优化方法.将设计变量矩阵分解为两组耦合度较小的矩阵,提取重要度最高的几个优化目标,把其他优化目标转换成约束条件,建立起八杆机构多目标优化数学模型,同时创建了工作装置多目标优化流程.将该数学模型加载于系统动力学分析软件AdAMS,借助该软件的内建函数,把多目标优化转换成单目标优化,实现了优化过程的函数驱动与函数监测.最终实现了工作装置的快速优化与仿真.In this study,a multi-objective optimization method ...
侯亮 +4 more
core
Smart Biomaterials and Dressings for the Treatment of Chronic Inflammatory Skin Diseases
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Chronic inflammatory skin diseases, encompassing immune‐inflammatory conditions and infection‐associated dermatoses, pose significant clinical challenges due to high prevalence, recurrence, and therapeutic resistance, affect over 30% of the global population.
Zehao Lan +5 more
wiley +1 more source
Jixie chuandong, 2004 灰色聚类是研究灰色系统的一种分析、判断方法 ,对求解多目标优化问题 ,较一般的其它方法更具合理性及实用性。本文通过对灰色系统、灰色聚类方法的研究 ,在斜齿圆柱齿轮传动多目标优化设计问题传统解法的基础上 ,利用灰色聚类 ,求出了该问题的最满意解 ...
李小平, 刘海兰, 芮延年
doaj
Multi-objective Evolutionary Algorithm Based on Membrane Structure [PDF]
, 2017 多目标进化算法在这些年被广泛的关注，其在工业、调度、自动化等领域应用非常的广泛。随着信息量的快速增加，大量的信息的产生肯定会照成大量需求的不断增加导致优化的目标数量也快速的增加。到目前为止，多目标优化算法大多数都是以二目标为研究主体，在目标数量超过三个时还没有在各种Pareto前沿上都有优势的算法出现。因此，无论是多目标的应用方面还是算法本身的研究方面都非常需要大量的深入研究。 在高维的情况下，非支配解的数量会急剧的减少，导致其所构成的Pareto前沿面的不连续不分散等问题。当前存在的大多数算法 ...
张菘洺
core
Study on virtual resource allocation optimization in cloud computing environment [PDF]
, 2012 Most existing researches of resource allocation in data center did not take into full consideration how to decrease energy consumption.The energy efficiency virtual resource allocation for cloud computing as a multi-objective optimization problem was ...
Chuan YAO, Li XU, Zhi-bin ZENG
core +1 more source
Conservation Biology, Volume 40, Issue 1, February 2026.Abstract As the global protected area (PA) network expands to meet international targets, it is important to assess whether traditional reliance on public land will suffice for projected PA growth or whether other tenures, such as Indigenous or pastoral lands, may increasingly contribute.
Emmeline Norris +2 more
wiley +1 more source
He jishu熔盐堆具有固有安全性和部署灵活性，能够广泛应用于多种场景。功率控制系统是确保熔盐堆安全稳定运行的关键系统之一，其在控制堆芯燃料盐温度的同时，还需要对负载变化进行快速响应，以满足基于熔盐堆的多样化复合能源系统中的潜在需求。控制目标之间存在相互影响，且执行器的数量和可调范围往往有限，因此给控制器参数的选择带来了巨大挑战。本文使用反应堆功率控制系统上普遍采用的比例-积分-微分（Proportional-Integral-Derivative，PID）控制器对堆芯温度和功率进行控制。在MATLAB ...
邱 芷艺 +7 more
doaj +1 more source
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT The design of nanoparticles confined in hollow N‐doped carbon structures is crucial for improving the oxygen reduction reaction (ORR) kinetics, yet achieving this remains a significant challenge. In this work, hollow porous nitrogen‐doped carbon encapsulated FeP/Fe2P (H‐FeP/Fe2P) were successfully constructed via a templating method combined ...
Li‐Xia Wang +8 more
wiley +1 more source