Results 121 to 130 of about 17,986 (235)

Integration of a thermal problem for soldering applications in Kratos-Multiphysics

open access: yes
El objetivo de esta tesina consiste en desarrollar un programa de simulación para JBC Soldering S.L., capaz de replicar la soldadura de un número variable de cupones de cobre mediante una punta de soldador.
Bartolomé Escribano, Ángel
core  

Degradation of Crystalline Si‐Based Solar Modules With Varying Material Combinations—Part I: Encapsulant Degradation

open access: yesProgress in Photovoltaics: Research and Applications, EarlyView.
This work deals with the degradation of solar modules with varying material combinations under accelerated aging conditions. By in situ moisture measurements and simulations of oxygen ingress, the consumption of stabilizing additives and polymer degradation can be correlated spatially resolved with the penetrating stressors.
Robert Heidrich   +11 more
wiley   +1 more source

Synergistic benefits of agrivoltaics for grape production and solar energy efficiency in a Mediterranean vineyard

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Grapevine production is increasingly challenged by global warming, with global wine output falling to a six‐decade low in 2024. At the same time, the vine and wine sector faces growing pressure to reduce its carbon footprint. Agrivoltaics, which integrates solar photovoltaic (PV) modules into plant production systems, offers a potential pathway to ...
Sabine Tausz‐Posch   +5 more
wiley   +1 more source

Bioelectronic Wearable Sensors Produced by Computerized Embroidery Using a Dual Thread Approach

open access: yesSmall, EarlyView.
A dual‐thread embroidered SmartBra integrates silver‐plated and conductive‐polymer (PECOTEX) threads to enable simultaneous cardiac monitoring and open‐circuit potentiometric sensing of potassium and sodium in a breast milk substitute. The wearable platform is fabricated using computerized embroidery, offering a scalable, proof‐of‐concept route toward ...
Taliya Weinstein   +9 more
wiley   +1 more source

Unbiased Tandem System for Simultaneous Methane and Glycerol Upgrading to Formic Acid Under Ambient Conditions

open access: yesSmall, EarlyView.
A bias‐free photovoltaic‐photoelectrochemical tandem system enables simultaneous methane and glycerol upgrading to formic acid under ambient conditions. The cathode generates hydrogen peroxide for methane oxidation, while the photoanode efficiently oxidizes glycerol.
Ho Kun Woo   +5 more
wiley   +1 more source

Selective Soldering

open access: yes, 2019
This diploma thesis introduces the problematics of selective soldering. The theoretical part deals with description of soldering process and its possibilitites, use of this processes for selective soldering and the control of production.
Stoklásek, Lukáš
core  

Analyses of the Deformability and Chemistry of Non‐Metallic Inclusions in QT Steels With Increased Recycling‐Induced Tramp Element Content

open access: yessteel research international, EarlyView.
This work uses high‐temperature dilatometry to examine how the tramp elements Cu, Ni, and Sn affect the deformability of non‐metallic inclusions and matrix in quench‐and‐temper steel. Mg‐bearing inclusions deform less than Mg‐free ones. Copper lowers formability. Nickel increases deformability.
Julian Cejka   +3 more
wiley   +1 more source

Power soldering station 500W

open access: yes, 2010
This thesis contains a complete description of the design and implementation of a 500W transformer soldering station. This soldering station includes a half-bridge DC/DC converter with a pulse transformer.
Šelepa, Jan
core  

Tailoring Model‐Based Systems Engineering for Sub‐100 g PlanarSats: A Power‐First View Stack

open access: yesSystems Engineering, EarlyView.
ABSTRACT This paper addresses how to apply model‐based systems engineering (MBSE) to ultrasmall planar satellites under severe power and resource constraints. PlanarSats are sub‐100‐gram spacecraft built as single printed‐circuit boards where the same surface must host both electronics and solar cells, so power generation, geometry, and component ...
Mehmet Şevket Uludaǧ   +1 more
wiley   +1 more source

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