Results 41 to 50 of about 3,866,167 (193)

Soldagem mig com corrente alternada MIG CA [PDF]

, 2008
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Mecânica.Com o objetivo de desenvolver a tecnologia de soldagem MIG CA, foram envidados esforços para criar soluções tecnológicas que ...
Santos, Túlio Fernandes dos
core  

Barrier‐Assisted Plasma Doping for Spatially Selective Resistance Engineering in MoS2 Transistors

Advanced Materials, Volume 38, Issue 55, 1 October 2026.
Barrier‐assisted NH3 plasma doping enables damage‐free, spatially selective carrier modulation in monolayer MoS2 transistors. An ultrathin pV3D3/Al2O3 protective‐dielectric stack acts as a chemical filter that allows NHx radicals to reach the MoS2 surface while blocking plasma damage. This process achieves a high electron concentration of 4.3 × 1013 cm−
Inseong Lee, Joonho Park, Seungsun Yoo, Seunghyun Yu, Mingu Kang, Seohak Park, Min Kyu Lee, Hyeongjin Lim, Dongyoung Kim, Kunwoo Roh, Sejin Kim, Kihyuk Kim, Wonbae Ahn, Kibum Kang, Yong‐Hoon Kim, Sung‐Yool Choi   +15 more
wiley   +1 more source

Aplicação do processo MIG/MAG pulsado com duplo arame e potenciais isolados em soldagens de revestimentos [PDF]

, 2002
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Mecânica.O processo de soldagem MIG/MAG PULSADO Com Duplo Arame e com Potenciais Isolados (MIG/MAG-PDAPI) é uma das ramificações dos ...
Motta, Marcelo Ferreira
core  

A Universal van der Waals Tunneling Injector for Monolayer CMOS

Advanced Materials, Volume 38, Issue 57, 13 October 2026.
A universal van der Waals injector unlocks polarity‐flexible tunneling contacts for monolayer CMOS. SnSe2, an intrinsically degenerate 2D semiconductor, establishes polarity‐specific band alignments with both WSe2 and MoS2 channels, enabling steep switching, high on/off ratios, and a unified route to low‐power 2D logic.
Hanbin Cho, Jing Huang, Seonguk Yang, Subin Im, Sangwoo Park, Jeongin Yeo, Sungyeon Kim, Gilhwan Do, Wenxuan Zhu, Soobeom Shin, Jongwon Lee, Yongjoon Shin, Do‐Sun Lee, Hu Young Jeong, Tae‐Eon Park, Jun Kang, Kyungmin Ko, Joonki Suh   +17 more
wiley   +1 more source

Study on Microstructure and Fatigue Damage Mechanism of 6082 Aluminum Alloy T-Type Metal Inert Gas (MIG) Welded Joint [PDF]

Applied Sciences, 2018
In this experiment, the T-joint of a 6082 aluminum alloy was welded by metal inert gas (MIG) welding and a fatigue test was carried out at room temperature. The mechanisms of generating pores and of fatigue fracture in welded joints are revealed in the case of incomplete penetration.
Duan, Chenfeng, Yang, Shanglei, Gu, Jiaxing, Xiong, Qi, Wang, Yuan   +4 more
openaire   +2 more sources

The institutional paradox of a substantivist conception of the economy in public policy: Insights from public procurement for solidarity economy in Ecuador

Annals of Public and Cooperative Economics, Volume 97, Issue 3, Page 871-900, September 2026.
Abstract Ecuador's 2008 Constitution advanced an ambitious substantive economic vision through Buen Vivir (Good Living), recognizing a plural economy which encompasses private, public and solidarity economy (SE) sectors. This paper aims to analyze public procurement programs in Ecuador, one of the flagship Buen Vivir policies for SE promotion.
Maria‐José Ruiz‐Rivera, Andreia Lemaître   +1 more
wiley   +1 more source

Microstructure and properties of Al–Zn–Mg–Cu alloy fabricated by cold metal transfer additive manufacturing

Journal of Materials Research and Technology
Al–Zn–Mg–Cu alloy additive manufacturing components were fabricated by cold metal transfer advance (CMT-A) and metal inert-gas welding (MIG). The results indicate that the CMT-A as-deposited sample has fine grains with small-sized η'-strengthened ...
Tianyou Zou, Shuwei Duan, Dongting Wu, Yingwen Cao, Kenji Matsuda, Fuqiang Guo, Yong Zou   +6 more
doaj   +1 more source

Investigation of preheating method on joint strength of aluminium-stainless steel dissimilar welding using metal inert gas (MIG) process [PDF]

IOP Conference Series: Materials Science and Engineering, 2017
This study investigates AA6061-O and SUS304 dissimilar welding with preheating of stainless steel SUS304 prior to welding process. The welding method used was metal inert gas (MIG) with butt joint type weld. The mechanical strength was investigated using tensile test.
M R Mohamad, L H Shah, M Ishak
openaire   +1 more source

Ionogel Actuators: A Review

SmartBot, Volume 2, Issue 2, June 2026.
Ionogels dynamically and functionally couple ionic liquids with polymer networks, enabling multiscale programmable deformation and motion under electrical, magnetic, optical, thermal, humidity, and chemical stimuli. This article systematically elucidates the constituent components, structural design, and multiscale actuation mechanisms of ionogel ...
Dezhou Cao, Dongqing He, Yuanxiang Zhao, Dongdong Jin, Jiaheng Zhang, Wei Wang   +5 more
wiley   +1 more source

KAJI BANDING KUALITAS REPAIR WELDING DENGAN METODE OXY-ACITELYN, TIG DAN MIG PADA CAST WHEEL ALUMINIUM

JIPTEK: Jurnal Ilmiah Pendidikan Teknik dan Kejuruan, 2019
Penelitian yang telah dilakukan adalah reparasi cast wheel (velg) aluminium yang telah mengalami kerusakan (retak) dengan metode pengelasan. Pengalasan yang akan diteliti meliputi 3 metode yaitu: las Oksi-Asitelin, las TIG (Tungsten Inert Gas) dan MIG ...
Budi Harjanto
doaj   +1 more source