Results 61 to 70 of about 91,828 (288)
Journal of Advanced Mechanical Design, Systems, and ManufacturingThis study investigates the effects of ultrasonic vibration-assisted drilling with a 0.3 mm diameter drill on engagement behavior and hole dimensions.
Naofumi TSUJI +6 more
doaj +1 more source
A Novel Ultrasonic Trepanning Method for Nomex Honeycomb Core
Applied Sciences, 2020 The vertical surface is a common and typical characteristic structure among Nomex honeycomb core components. However, the conventional high-speed milling and ultrasonic cutting struggle to meet the high-quality machining requirements of a vertical ...
Dingyi Sun +4 more
doaj +1 more source
Advanced Functional Materials, EarlyView.This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies +8 more
wiley +1 more source
Advances in Mechanical Engineering, 2019 There are many problems and physical phenomena in turning process, like machined surface quality, cutting force, tool wear, and so on. These factors and the chip shape of workpiece materials, which is an important aspect to study the mechanism of ...
Yingshuai Xu +3 more
doaj +1 more source
A generalised approach to torsionality maximisation in longitudinal-torsional ultrasonic devices [PDF]
, 2011 A longitudinal-torsional vibration mode has many applications in ultrasonic systems. Obtaining this behaviour could be achieved either by coupling the longitudinal and torsional modes or by degenerating the longitudinal mode, but the results may be ...
Al-Budairi, Hassan +2 more
core
Advanced Functional Materials, EarlyView.Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr +7 more
wiley +1 more source
Micro Electrochemical Milling of Micro Metal Parts with Rotating Ultrasonic Electrode
Sensors, 2020 With the rapid development of MEMS, the demand for metal microstructure is increasing. Micro electrochemical milling technology (MECM) is capable of manufacturing micro metallic devices or components based on the principle of electrochemical anode ...
Yong Liu +5 more
doaj +1 more source
Energy-Based Optimal Ranking of the Interior Modes for Reduced-Order Models under Periodic Excitation [PDF]
, 2015 This paper introduces a novel method for ranking and selecting the interior modes to be retained in the Craig-Bampton model reduction, in the case of linear vibrating systems under periodic excitation.
Palomba, Ilaria +2 more
core +3 more sources
Notch effects under ultrasonically vibrating stress.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A, 1988 In this study, stress concentration factors and fatigue strength reduction factors are obtained in the case of a round bar of mild steel with a V-groove under ultrasonically vibrating stress. The stress concentration factors are determined by analysis on eigenmodes using FEM.
Takahiko KUNOH +3 more
openaire +3 more sources
Advanced Functional Materials, EarlyView.Glyphosate (GLY) and its primary metabolite, aminomethylphosphonic acid (AMPA), are photodegraded using a poly(vinylidene fluoride) membrane with immobilized titanium dioxide (PVDF‐TiO2) in a continuous flow‐through operation under solar light. At optimized conditions, the PVDF‐TiO2 membrane achieved 95% GLY and 80% AMPA removal with •O2− as the ...
Phuong B. Trinh +4 more
wiley +1 more source