Results 101 to 110 of about 5,882,386 (325)

Heuristic Solutions for Loading in Flexible Manufacturing Systems [PDF]

, 1996
Production planning in flexible manufacturing system deals with the efficient organization of the production resources in order to meet a given production schedule. It is a complex problem and typically leads to several hierarchical subproblems that need
Chen, Wun-Hwa, Srivastava, Bharatendu
core   +1 more source

Stoma‐Shell Nanoarchitecture for Enhanced Plasma Confinement Catalysis in Synthesis of Ethanol from CO2

Advanced Functional Materials, EarlyView.
High‐energy electron impact in plasma catalysis often causes excessive dissociation of active intermediates, limiting C2+ product selectivity. To address this challenge, a bio‐inspired stoma‐shell nanoarchitecture is designed to decouple electron impact from catalytic reaction zones.
Nan Zou, Zhiliang Dong, Tsun‐Kong Sham, Xiaonian Li, Ying Zheng, Ting Qiu   +5 more
wiley   +1 more source

Decomposition of the Strategic Plan for Restructuring a Machine-Building Enterprise in View of Continuity of the Plans for Adjacent Periods [PDF]

Problemi Ekonomiki, 2017
The aim of the article is to practically approve the authors’ multi-level hierarchical approach to the strategic planning of industrial enterprise restructuring using the example of solving the problem of disaggregating the strategic plan for ...
Kozyr-Chepurna Mariia A., Berdnyk Iryna V.   +1 more
doaj  

Planning and Real Time Control of a Minimally Invasive Robotic Surgery System [PDF]

, 2009
This paper introduces the planning and control software of a teleoperating robotic system for minimally invasive surgery. It addresses the problem of how to organize a complex system with 41 degrees of freedom including robot setup planning, force ...
Hirzinger, Gerd, Konietschke, Rainer, Tobergte, Andreas   +2 more
core  

Hierarchical Policy Search via Return-Weighted Density Estimation

, 2017
Learning an optimal policy from a multi-modal reward function is a challenging problem in reinforcement learning (RL). Hierarchical RL (HRL) tackles this problem by learning a hierarchical policy, where multiple option policies are in charge of different
Osa, Takayuki, Sugiyama, Masashi
core   +1 more source

Dual‐Atom Dopants Activated Ruthenium Single‐Atom Alloy Boosting Hydrogen Evolution Electrocatalysis in Proton Exchange Membrane Water Electrolyzer

Advanced Functional Materials, EarlyView.
Ni1‐Bi1 dual‐atom dopants are achieved for activating Ru lattices without blocking noble atoms. This model exhibits an ultralow overpotential of 11.4 mV and superb stability at 10 mA cm−2 toward hydrogen evolution reaction, enabling a proton exchange membrane water electrolyzer that needs only 2.233 V to reach 3.0 A cm−2 and operates stably at 1.0 A cm−
Shuiping Luo, Zhichao Yang, Xinyi Cai, Peiling Hu, Lei Xie, Junhao Qiu, Wen Chen, Tianou He, Yong Li, Tangting Li, Yuehan Li, Hong Zhu, Fenghao Jiang, Ke Liu, Jinliang Zhu, Shao‐Qing Liu, Xian‐Zhu Fu, Jing‐Li Luo   +17 more
wiley   +1 more source

Real-Time Planning with Multi-Fidelity Models for Agile Flights in Unknown Environments

, 2019
Autonomous navigation through unknown environments is a challenging task that entails real-time localization, perception, planning, and control. UAVs with this capability have begun to emerge in the literature with advances in lightweight sensing and ...
Carter, John, How, Jonathan P., Lopez, Brett T., Tordesillas, Jesus, Ware, John   +4 more
core   +1 more source

Hierarchical planning for multi-contact non-prehensile manipulation

IEEE/RJS International Conference on Intelligent RObots and Systems, 2015
Manipulation planning involves planning the combined motion of objects in the environment as well as the robot motions to achieve them. In this paper, we explore a hierarchical approach to planning sequences of non-prehensile and prehensile actions.
Gilwoo Lee, Tomas Lozano-Perez, L. Kaelbling   +2 more
semanticscholar   +1 more source

Micro and Nanostructural Diversity of Lizard Osteoderm Capping Tissue in Relation to Mechanical Performance

Advanced Functional Materials, EarlyView.
This study shows that lizard osteoderm capping tissue is a hyper‐mineralized hydroxyapatite layer consistently covering the superficial osteoderm surface in those species studied here, yet it varies greatly in morphology, nanostructure, and mechanical performance across species.
Adrian Rodriguez‐Palomo, Marius Didziokas, Malene Siri Berg Jacobsen, Thorbjørn Erik Køppen Christensen, Innokenty Kantor, Mads Ry Vogel Jørgensen, Klaus Pagh Almtoft, Jesper Skovhus Thomsen, Anthony Herrel, Catherine J.A. Williams, Henrik Birkedal   +10 more
wiley   +1 more source

3D‐Printed Porous Hydroxyapatite Formed via Enzymatic Mineralization

Advanced Functional Materials, EarlyView.
Bone combines lightness, strength, and the ability to heal, inspiring new materials design. This work introduces a room‐temperature, enzyme‐mediated 3D printing method to create porous hydroxyapatite scaffolds. The process avoids energy‐intensive sintering, preserves bioactivity, and allows control over porosity and mineralization.
Francesca Bono, Anna Puiggalí‐Jou, Greta Cocchi, Mariangela Miccoli, Katharina Maniura‐Weber, Marcy Zenobi‐Wong, Esther Amstad   +6 more
wiley   +1 more source