Results 31 to 40 of about 5,179,681 (193)
ABSTRACT Anchored on the sustainable development goals (SDGs) and the Paris Agreement, which seek to limit the global average temperature to well below 2°C above pre‐industrial levels and pursue efforts to limit the temperature to 1.5°C, this study investigates how green energy finance and environmental taxes affect environmental quality, with an ...
Mohammed Musah +4 more
wiley +1 more source
ABSTRACT Rationally selection of precursor additives during perovskite crystallization is essential for obtaining high‐quality films and achieving high‐performance perovskite solar cells (PSCs). However, the discovery and optimization of effective additives still rely heavily on time‐consuming and costly trial‐and‐error experiments.
Zhimin Feng +12 more
wiley +1 more source
ABSTRACT Advanced metallic glasses, leveraging their ultrahigh strength, excellent corrosion resistance, superior soft magnetic properties and good biocompatibility, have gradually become indispensable strategic cornerstones in critical fields such as aerospace, electronic information and energy power. This unique combination of properties enables them
Yizhou Liu +11 more
wiley +1 more source
机器学习根据历史数据的模式预测未来,近年来进行了大量研究并得到了应用,但在处理动态、非完整、非结构化信息上与人类相去甚远。为此,引入人的决策,结合机器学习、知识库,构建了一个人在回路的混合增强智能闭环系统。基于 Sawyer 协作机器人搭建了人机融合实验平台,设计了机器人抓取实验。实验结果表明,相比单一机器学习方式,在引入人类智能后,Sawyer在应对非结构化环境下的抓取任务中表现更佳。
付海军 +4 more
doaj
Structured machine learning modeling to support conservation of deep‐sea benthic biodiversity
Abstract Biodiversity monitoring programs need to deliver accurate, timely, and actionable predictions. To establish a predictive monitoring program for deep‐sea benthos of the Santos Basin, Brazil, we developed a two‐stage structured model that allowed comparison of biodiversity predictions obtained from environmental simulations (2M‐Sim).
Gustavo Fonseca +23 more
wiley +1 more source
针对变压器故障的特征,结合变压器油中气体分析法以及三比值法,提出了基于遗传算法改进极限学习机的故障诊断方法。由于输入层与隐含层的权值和阈值是随机产生,传统的极限学习机可能会使隐含层节点过多,训练过程中容易产生过拟合现象。该方法运用遗传算法对极限学习机的输入层与隐含层的权值与阈值进行优化,从而提高模型的稳定性和预测精度。将诊断结果与传统的基于极限学习机故障诊断进行对比,结果表明,基于遗传算法改进极限学习机变压器故障诊断的精度更高。
吕忠 +4 more
doaj
本研究的目的是建立一种通过机器人自主学习实现机器人手眼协调能力的方法,从而使机器人在真实环境中具有更高的自适应性.该方法受到人类婴儿发育过程的启发,首先构建了仿脑计算结构,模仿人类脑部在实现手眼协调过程中各个脑叶区域的配合过程;并提取人类婴儿在形成手眼协调的发育过程中的行为特征.使用该行为特征与仿脑计算结构相结合,建立一种新型的机器人手眼协调的学习算法.通过实验验证上述方法,结果表明:所建立的机器人控制学习系统可以实现机器人的手眼协调能力 ...
周昌乐, 张欣, 江敏
core
How Do I Measure up? Social Influence and L2 Motivation in the Algorithmic Age
ABSTRACT Comparative thinking is a fundamental human drive and a hallmark of contemporary life. For social action, such as the learning and use of additional languages, a target for appraisal (an L2 attribute) is evaluated in relation to a comparison standard (an appraiser's standpoint).
Alastair Henry, Meng Liu
wiley +1 more source
鳗鱼机器人的动力学模型非线性强、高度欠驱动,导致多关节鳗鱼机器人的切向速度跟踪控制极具挑战.本文采用P型迭代学习控制与步态生成器相结合的方法对多关节鳗鱼机器人的切向速度进行跟踪控制.首先,采用解析牛顿―欧拉法建立非惯性系下的鳗鱼机器人动力学模型,直接获得切向速度子动力学模型;然后,利用带饱和函数的P型迭代学习控制器控制步态参数,并且利用复合能量函数和切向速度子动力学模型分析该控制器的收敛性,得到切向速度跟踪误差的收敛条件;最后,提出鳗鱼机器人的运动控制框架,并对多模块的鳗鱼机器人进行仿真和实验 ...
core +1 more source
传统单一人工智能方法对变压器故障诊断中采用的大量不完备信息不能够有效处理,导致故障诊断准确率不高。为弥补这一不足,在全面分析粒子群算法(particle swarm optimization,PSO)和极限学习机(extreme learning machine,ELM)各自优势的基础上,构建了一种基于粒子群优化极限学习机的变压器故障诊断方法。该方法以DGA作为特征输入,利用粒子群算法对极限学习机的输入层权值和隐含层阈值进行优化,从而提高变压器故障诊断的精度。实例对比分析表明 ...
袁海满, 吴广宁, 高波
doaj

