Results 101 to 110 of about 363,653 (297)

Research on hobbing accuracy of flexspline tooth profile of harmonic drive

Journal of Advanced Mechanical Design, Systems, and Manufacturing
Harmonic drives are critical components in robotic joints, and the hobbing accuracy of flexspline tooth profiles is essential for the transmission accuracy and operational stability of harmonic drives.
Qiushi HU, Heng LI
doaj   +1 more source

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

Advanced Functional Materials, EarlyView.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal, Laura Calderón‐Rodríguez, Oksana Smirnova, Eren Grossmann, Aparna Binu Varghese, Karen Marlenne Garcia Alvarez, Andreas Schneemann, Thomas Hoyer, Ralf Wyrwa, Felix Helmut Schacher, Alexander Knebel   +10 more
wiley   +1 more source

Geometric Accuracy Design and Tolerance Allocation of Precision Horizontal Machining Centers

Machines
As the structural complexity of machined components increases and the pace of product updates accelerates, the demands for machining precision in CNC machine tools are becoming increasingly rigorous.
Lina Wang, Xingxing Liu, Wenjie Tian, Dawei Zhang   +3 more
doaj   +1 more source

Point-level Uncertainty Evaluation of Mobile Laser Scanning Point Clouds [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Reliable quantification of uncertainty in Mobile Laser Scanning (MLS) point clouds is essential for ensuring the accuracy and credibility of downstream applications such as 3D mapping, modeling, and change analysis.
Z. Xu, O. Wysocki, C. Holst, C. Holst
doaj   +1 more source

Advancing Electronic Application of Coordination Solids: Enhancing Electron Transport and Device Integration via Surface‐Mounted MOFs (SURMOFs)

Advanced Functional Materials, EarlyView.
The layer‐by‐layer (LbL) assembly of coordination solids, enabled by the surface‐mounted metal‐organic framework (SURMOF) platform, is on the cusp of generating the organic counterpart of the epitaxy of inorganics. The programmable and sequential SURMOF protocol, optimized by machine learning (ML), is suited for accessing high‐quality thin films of ...
Zhengtao Xu, Christof Wöll, Stefan Bräse   +2 more
wiley   +1 more source

Error Modeling based on Screw Theory and Sensibility Analysis of Reconfigurable Robot

Jixie chuandong, 2017
For the static error about dimensions error and geometric parameters error of reconfigurable robot caused by the design and manufacture of modules and its configuration change,the static geometric parameters error of reconfigurable robot is treated as ...
Ge Weimin, Zhao Wen, Wang Xiaofeng, Liu Jun, Liu Zengchang   +4 more
doaj  

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu, Giovanni Gammaitoni, Michael Häfner, Eduardo Villalobos‐Portillo, Carlo Marini, Matteo Bianchini   +5 more
wiley   +1 more source

LT-1A/B Satellite SAR Geometric Calibration and Absolute Location Error Analysis

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
LuTan-1 (LT-1) is China's first L-band differential interferometric synthetic aperture radar (SAR) satellite system, and also the first twin L-band SAR satellite system in the world.
Minzheng Mu, Zhiwei Li, Bing Xu, Xin He, Kun Han, Xun Du, Qijin Han, Aichun Wang   +7 more
doaj   +1 more source

A quasinonlocal coupling method for nonlocal and local diffusion models

, 2017
In this paper, we extend the idea of "geometric reconstruction" to couple a nonlocal diffusion model directly with the classical local diffusion in one dimensional space.
Du, Qiang, Li, Xingjie Helen, Lu, Jianfeng, Tian, Xiaochuan   +3 more
core   +1 more source

All‐in‐One Analog AI Hardware: On‐Chip Training and Inference with Conductive‐Metal‐Oxide/HfOx ReRAM Devices

Advanced Functional Materials, EarlyView.
An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone, Victoria Clerico, Wooseok Choi, Tommaso Stecconi, Folkert Horst, Laura Bégon‐Lours, Matteo Galetta, Antonio La Porta, Nikhil Garg, Fabien Alibart, Bert Jan Offrein, Valeria Bragaglia   +11 more
wiley   +1 more source