Results 51 to 60 of about 4,591 (221)

Enabling Metal‐Based Soft Robotics Through Investment Casting

open access: yesAdvanced Intelligent Systems, EarlyView.
Vacuum investment casting enables manufacturing of compliant soft robotic structures out of AA7075 high‐strength aluminum alloy. Additively manufactured patterns are converted into metal soft robotic structures addressing long lasting challenges like durability and nonlinearity of elastomer‐based soft robotics.
Felix Pancheri, Tim C. Lueth, Yilun Sun
wiley   +1 more source

Comparative Study of Ultrasonic Vibration-Assisted Die-Sinking Micro-Electrical Discharge Machining on Polycrystalline Diamond and Titanium

open access: yesMicromachines
Die-sinking micro-electrical discharge machining (micro-EDM) is a potential method used to fabricate intricate structures without complex electrode motion planning and compensation.
Cheng Guo   +5 more
doaj   +1 more source

Study on the Mechanism of Discharge Channel and Thermal Effect in Micro-EDM [PDF]

open access: yes, 2015
为了提高微细电火花加工的工件表面精度、控制加工过程的放电参数以及预测放电加工的结果,本文从微细电火花加工的基本机理出发,针对微细电火花加工过程中存在的研究难点进行了探索,并从介质击穿、通道扩张、能量分配以及热作用等几个方面开展了研究。主要研究工作如下: 首先,研究了微细电火花等离子体通道击穿机理及模型。从微细电火花加工的放电特性出发,提出了适用于微细电火花加工且结合了气泡机理与电子机理的击穿机理,并基于该击穿机理建立适用于微细电火花加工过程的击穿模型。 其次,研究了微细电火花等离子体通道扩张机理及模型 ...
朱凯
core  

Educational Strategies for Managing Moral Distress in Student Nurses: A Scoping Review

open access: yesJournal of Advanced Nursing, EarlyView.
ABSTRACT Aims To explore what content, teaching and learning activities are advocated by nurse educators to mitigate moral distress and related concepts in student nurses. Design Scoping review. Review Methods The review was conducted according to Joanna Briggs Institute guidelines.
Rebecca Timmins, Chris Kite
wiley   +1 more source

Design of generic modular reconfigurable platforms (GMRPS) for a product-oriented micro manufacturing system [PDF]

open access: yes, 2008
With the proposition of the concept of product-service systems, many manufacturers are focusing on selling services or functionality rather than products.
Cheng, K, Sun, X
core  

Fracture resistance and behavior of endodontically treated maxillary premolars with varying ferrule heights and post numbers: A laboratory study

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose To investigate how varying ferrule heights and the number of glass fiber posts affect fracture resistance and behavior of endodontically treated maxillary first premolars with substantial loss of tooth structure. Materials and Methods Twenty‐four extracted endodontically treated human maxillary first premolars were divided into three ...
Mohammad D. Aljanakh   +5 more
wiley   +1 more source

Self-rounding fabrication of micro-cylindrical electrode arrays and comparative EDM performance in single-crystal and polycrystalline nickel-based superalloys

open access: yesJournal of Materials Research and Technology
Nickel-based superalloys are widely used in aerospace and energy systems, and their surfaces often feature high-density micro-hole arrays for cooling or fluidic functions.
Liya Jin   +4 more
doaj   +1 more source

Job Switching Motives and Employer Attractiveness: A Comparative Analysis of Sector Switchers and Non‐Sector Switchers

open access: yesPublic Administration Review, EarlyView.
ABSTRACT Attracting talent to public administration is a highly relevant issue of practical concern and scholarly debate. Building on unique survey data of 424 individuals who switched jobs to join public administration, this study explores public employer attractiveness in a multi‐incentive setting, accounting for the experiences of a less explored ...
Adrian Ritz   +3 more
wiley   +1 more source

Research on the key techniques of composite processing of EDM and vibration ultrasonic drilling [PDF]

open access: yesJournal of Intelligent Manufacturing and Special Equipment
Purpose – Utilizing electrical discharge machining (EDM) to process micro-holes in superalloys may lead to the formation of remelting layers and micro-cracks on the machined surface.
Jianyong Liu   +8 more
doaj   +1 more source

The effect of surface texturing in the sliding surface on tribological characteristics of alloy steel under wet condition

open access: yesFracture and Structural Integrity, 2021
Surface texturing plays an increasingly important role as it can directly influence the tribological behaviors of contact surfaces in many ways.
H. S. Patil, D. C. Patel
doaj   +1 more source

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