Results 81 to 90 of about 66,342 (341)

Synchrotron Radiation for Quantum Technology

open access: yesAdvanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader   +10 more
wiley   +1 more source

基于刀具实际廓形的数控加工刀具轨迹计算

open access: yesJixie chuandong, 2010
Tool path generation method is the most important and the most extensive and in-depth content for the free-form surface parts NC-machining. In the multi-axis NC-machining,tool path influences on the precision and efficiency of machining.
段振云, 王君, 赵文辉
doaj  

The impact of tool selection on back and wrist injury risk in tying steel reinforcement bars: a single case experiment [PDF]

open access: yes, 2019
The paper explores the risk of work-related musculoskeletal injury in tying steel reinforcement bars. Three tools are compared to determine the extent to which ergonomic tools can reduce the risk of injury to the back and wrist in steel-tying.
Fitzgerald, Chris   +4 more
core   +2 more sources

A Novel Cutter Path Planning Approach to High Speed Machining [PDF]

open access: yesComputer-Aided Design and Applications, 2006
AbstractHigh speed machining is playing a more and more important role in modern machines shops, in particularly, in aerospace machining, mold and die machining. In high speed milling operations, a path that has the least number of sharp turns is preferred. Spiral curve is a special curve which can have no sharp turn, and the step-over between adjacent
openaire   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

open access: yesAdvanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong   +3 more
wiley   +1 more source

Research of the Path Optimization for the NC Planing Process of the Spur Face-gear

open access: yesJixie chuandong, 2016
The principle of the NC planing process of the spur face-gear is briefly introduced,the equations of the tooth profile and the tooth cutter are derived,the mathematical relation between the tooth cutter angle and the allowance is established,and then,the
Qian Lulu, Yang Xiaoyu, Tang Jinyuan
doaj  

Establishing a Novel Model for 5-Axis Milling with a Filleted End Mill

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2012
This paper focuses on the mathematical modeling for 5-axis milling with a filleted end mill. Several coordinate systems are introduced to describe the relationship between a cutter orientation and a machined surface.
Tsutomu SEKINE   +2 more
doaj   +1 more source

Automatic Tool Path Generation for Parametric Surfaces [PDF]

open access: yesEngineering and Technology Journal, 2019
A tool path generation algorithm has been proposed and implemented in the presented work. The aim of the development of tool path algorithm is to machine parametric surface with a given tolerance and scallop height.
Tahseen Abbas, Sara Shawi
doaj   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida   +16 more
wiley   +1 more source

A New Method for the Real-Time Monitoring of PDC Bit Cutter Wear Based on the Drilling Rate Mode

open access: yesShiyou jixie, 2020
In order to carry out real-time quantitative monitoring on the wear degree of PDC bit cutter, the drilling rate equation suitable for PDC bit was optimized.
Hao Yalong   +5 more
doaj  

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