Results 31 to 40 of about 13,205 (168)
Research on Grinding and Using Parameters Optimization of Cemented Carbide Cutting Tool [PDF]
, 2015 在航空航天制造领域，航空铝合金零部件是数量最多、制造任务最重的加工对象，其高效加工使用的高端硬质合金刀具多数需要进口。由于我国航空铝合金加工专用硬质合金刀具的研究起步较晚、发展滞后，材料研发、刀具设计以及制造装备技术整体水平不高，尤其缺乏针对不同航空铝合金零件加工用硬质合金刀具从切削机理分析、几何结构设计、磨制技术、加工参数优化整个过程的全链条式研究。本文针对航空铝合金7075加工用硬质合金刀具的磨制机理、刀具铣削性能、刀具几何结构与加工参数优化等方面进行贯通性应用基础研究尝试 ...
张祥雷
core
Emerging applications of large language models in ecology and conservation science
Conservation Biology, EarlyView.Abstract Large language models (LLMs) mark a major development in artificial intelligence, with potentially transformative implications for ecology and conservation science. Built on advanced deep‐learning architectures, these models can support a wide range of tasks. We reviewed emerging applications of LLMs, drawing on the wider scientific literature
Christos Mammides +5 more
wiley +1 more source
Jixie 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]
, 2017 2007-2008 > Academic research: refereed > Publication in refereed journalVersion of ...
Cheng, YM, Wang, JA, Zhao, ZH
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Multi-objective Topology Optimization and Design for Industrial Robot [PDF]
, 2017 为了综合提高工业机器人的结构刚度、振动频率,降低结构质量,从而提高机器人整体的静动态性能,提出了一种基于多目标拓扑优化的机器人结构优化方法.该方法首先对机器人整机和部件进行分析,寻找机器人薄弱的零部件;然后对其进行多目标拓扑优化和模型重建,从而获得最佳的结构.将该方法成功应用于一款3kg装配、搬运等多功能机器 人的分析优化中,结果验证了该分析优化方法的可用性和有效性.In order to comprehensively improve the structure of industrial ...
褚旭阳, 许辉煌
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Topics as Outcomes: Modeling the Influence of Intergovernmental Grants on Policy Diffusion
Policy Studies Journal, EarlyView.ABSTRACT Intergovernmental grants stimulate the diffusion of policy reforms, as the federal government provides states with a financial incentive to adopt policies aligned with federal priorities. Less is known about the extent to which these grants also stimulate horizontal diffusion across states.
NaLette Brodnax, Sarah James
wiley +1 more source
Jixie 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
Research on Energy Efficiency Optimization Algorithm for Copper Flash Smelting Process Based on Data-driven [PDF]
, 2016 铜闪速熔炼工序具有多变量、非线性、大时滞、强耦合、生产波动大的特点，传统的基于机理模型的优化控制系统很难适应多变的运行条件，预测结果偏差较大，影响最终的控制效果。随着计算机技术的发展，复杂工业过程中积累了大量生产数据，为我们从人工智能的角度进行建模与优化控制提供了数据基础。 本论文以某大型闪速炼铜企业的闪速熔炼生产过程为研究对象。为了实现铜闪速熔炼工序中的节能减耗，本文提出了一种满足三大工艺指标（冰铜品位，冰铜温度，渣中铁硅比）约束的能效优化模型：首先 ...
董云成
core
Democratic Values in Citizen Participation: What Citizens Prioritize in Participation
Policy Studies Journal, EarlyView.ABSTRACT Citizen participation is often initiated to strengthen democracy. While participatory innovations are typically assessed through normative frameworks emphasizing democratic values, little is known about which of these values are prioritized by citizens.
Take Sipma, Frank Hendriks
wiley +1 more source
Key Techniques and Applied Research on Engineering Vehicles' Noise Reduction, Energy Saving and Acoustic Comfort [PDF]
, 2016 当前，噪声已经成为衡量工程机械装备性能的一个重要指标。市场要求越来越高，相关的国家标准、国际标准日益严格。随着大功率产品的不断发展，整机噪声随之增加和热流密度不断提高，过低的冷却空气流量已满足不了发动机的热平衡要求，整机工作热流密度与逐渐降低的噪声限值的矛盾日益突出。同时，随着人们生活质量和品质追求的提高，整机声学舒适性也逐渐备受关注，对噪声的控制由最初的满足限值要求将转向声学舒适性的研究。因此，我国工程机械要发展并跻身世界市场，必须解决整机存在噪声偏大、热流密度高和声学舒适性差的共性问题 ...
张恩来
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