Results 101 to 110 of about 2,332,186 (303)

55% Efficient High-Power Multijunction Photovoltaic Laser Power Converters for 1070 nm

Photonics
High-efficiency multijunction laser power converters are demonstrated for the first time at high power for optical inputs around 1070 nm. The InP-based photovoltaic power-converting III–V heterostructures are designed with eight lattice-matched InGaAsP ...
Simon Fafard, Denis Masson
doaj   +1 more source

INNOWIZ: a guided framework for projects in industrial design education [PDF]

, 2012
This paper presents the concrete application of the INNOWIZ methodology in a design education context. This methodical philosophy is used as a structural backbone in teaching the product design process to students in industrial product design ...
Michiels, Pieter, Saldien, Jelle, Versluys, Rino, Verthé, Becky   +3 more
core   +1 more source

Investigation of Thermo‐Chemical Processes in Commercial MgO‐C Refractory Bricks With and Without MgO‐C Recyclate at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm, Jana Hubálková, Christian Schimpf, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +6 more
wiley   +1 more source

Cooling Fiber Laser Power Converter Systems by Immersion in Oil

Photonics
We demonstrate the use of Laser Power Converters (LPCs) driven by fiber laser light while immersed in transformer oil for heat management purposes. Reliability tests performed via extended continuous operation using 6–7 W of input power from 808 nm and ...
Denis Masson, Simon Fafard
doaj   +1 more source

Thermophysical Properties of the Desulphurization Slags With Various CaS and CaO/Al2O3 Ratio

Advanced Engineering Materials, EarlyView.
This article investigates how CaS content and the CaO/Al2O3 ratio influence the thermophysical properties of desulphurization slags. Using experimental measurements and thermodynamic simulations, this study reveals complex effects on viscosity, surface tension, and density, providing new insight into slag structure and phase behavior under ...
Eldar Salpagarov, Matheus Roberto Bellé, Anton Yehorov, Julia Richter, Olena Volkova   +4 more
wiley   +1 more source

Defining essential surgical skills and optimizing simulation training modalities for anterior cervical discectomy and fusion

Scientific Reports
Anterior cervical discectomy and fusion (ACDF) is a technique mainly used to treat cervical spondylosis, which is associated with radiculopathy or myelopathy. It is difficult to perform and has been associated with many clinical complications.
Bohong Cai, Xilin Cheng, Xi Lyu, Hanhan Wu, Xue Leng, Sihang Li, Baixiang Chen, Qi Yao, Jie Hao, Menghong Xia, Wei Jiang   +10 more
doaj   +1 more source

Failure mechanism analysis and process improvement on time-dependent dielectric breakdown of Cu/ultra-low-k dielectric based on complementary Raman and FTIR spectroscopy study

AIP Advances, 2014
Time-dependent dielectric breakdown (TDDB) is one of the most important reliability issues in Cu/low-k technology development. With continuous technology scalings to nanometer scales, TDDB issue is further exacerbated.
Dan Dan Wang, Wei Lin Wang, Maggie Yamin Huang, Alan Lek, Jeffrey Lam, Zhi Hong Mai   +5 more
doaj   +1 more source

Policy, Economic Federalism & Product Market Entry: The Indian Experience [PDF]

, 2006
Productivity growth has long been associated with, among others, contestability of markets which, in turn, is dependent on the ease with which potential competitors to the incumbent firms can enter the product market. There is a growing consensus that in
Bhaumik, Sumon Kumar, Gangopadhyay, Shubhasish, Krishnan, Shagun   +2 more
core  

Characterization of a Recyclate‐Based MgO‐Steel Composite As‐Sintered Inert Anode Candidate After Exposure to Cryolite Electrolysis

Advanced Engineering Materials, EarlyView.
Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi, Alexander Adamczyk, Nora Brachhold, Gert Schmidt, Jana Hubálková, R. Gumeniuk, Alexandros Charitos, Christos G. Aneziris   +7 more
wiley   +1 more source

Influence of an Oxygen‐Free Atmosphere on Diamond‐Single‐Grain Scratching of Ti–6Al–4V

Advanced Engineering Materials, EarlyView.
Single‐grain scratching of Ti–6Al–4V is investigated under controlled, oxygen‐free, and ambient atmospheres using a novel experimental setup with in situ high‐speed imaging. The approach enables direct observation of chip formation and adhesion under suppressed oxidation.
Berend Denkena, Benjamin Bergmann, Michael Zenger   +2 more
wiley   +1 more source