Results 111 to 120 of about 42,810 (293)

A NASA high-power space-based laser research and applications program [PDF]

Applications of high power lasers are discussed which might fulfill the needs of NASA missions, and the technology characteristics of laser research programs are outlined.
Conway, E. J., Deyoung, R. J., Jones, L. W., Walberg, G. D.   +3 more
core   +1 more source

Kompetensi guru dalam pengajaran amali reka bentuk dan teknologi di Sekolah Rendah Daerah Batu Pahat [PDF]

, 2007
Kompetensi bermaksud kemampuan atau kecekapan seseorang individu dalam melakukan sesuatu tugasan. Kompetensi juga merujuk kepada kemampuan seseorang dalam melaksanakan sesuatu yang diperolehi melalui pendidikan dan juga merujuk kepada prestasi dan ...
Md Harun, Zaiha Nabila
core  

Interaction of Ladle Slag With Varying SiO2 Content and Recyclate‐Based MgO–C Refractories

Advanced Engineering Materials, EarlyView.
Ladle slags (CaO/Al2O3 = 1) with 1–20 wt% SiO2 were investigated in contact with industrial MgO–C refractories fabricated from fresh magnesia and 50 wt% recyclate. The sessile drop method at 1600°C reveals intensive gas formation, delayed slag infiltration in recyclate‐based samples, and, under high‐SiO2 slag, formation of a dense MgAl2O4‐rich ...
Anton Yehorov, Eldar Salpagarov, Anhelina Mospan, Till Manon Jannis Stadtmüller, Thomas Schemmel, Christos Georgios Aneziris, Olena Volkova   +6 more
wiley   +1 more source

Digital Twin of the Photoelectric Converter of the Power Transmission System over Optical Fiber

Journal of Physics: Conference Series
Abstract The photovoltaic converter (PVC) is a key device in a power-over-fiber system (PoFS). The aim of the work is to create a digital twin (DT) to predict the behaviour of PVC based on their specification data, which is the first step towards creating a universal DT of the entire PoFS.
A. A. Garkushin, V. V. Krishtop, S. A. Storozhev, I. L. Volkhin, E. V. Nifontova, E. V. Urbanovich, D.A. Kustov, I. V. Kadochikov   +7 more
openaire   +1 more source

Dielectric Barrier Discharge Plasma Deoxidation of Natively Oxide Layer of Copper Powders in a Fluidized Bed

Advanced Engineering Materials, EarlyView.
This paper presents a novel approach to reducing oxide layers on metal powders using low‐temperature hydrogen dielectric barrier discharge plasmas at atmospheric pressure. Unlike conventional hydrogen‐plasma reductions, the powders do not contact the plasma directly.
Shukang Zhang, Annett Wollmann, Thomas Gimpel, Alfred P. Weber   +3 more
wiley   +1 more source

Adiabatic mode converters for silicon photonics: Power and polarization broadband manipulators

APL Photonics, 2019
Broadband, low-loss, and fabrication-tolerant photonic passives are of paramount importance in any photonic integrated circuit (PIC). Among others, the adiabatic couplers can have those merits premised on their one-to-one mode transformation ...
Argishti Melikyan, Po Dong
doaj   +1 more source

Thermionic converter and generator tests [PDF]

Performance and life test on thermionic converters and ...
Rouklove, P.
core   +1 more source

Deterministic Detection of Single Ion Implantation

Advanced Engineering Materials, EarlyView.
Focused ion beam implantation with high detection efficiencies will enable the rapid and scalable fabrication of advanced spin‐based technologies such as qubits. This work presents the detection efficiencies of a wide range of ions implanted into solid‐state hosts, with efficiencies of >90% recorded for ion species and substrate combinations of ...
Mason Adshead, Lok Kan Wan, Maddison Coke, Janet Jacobs, Nicholas F. L. Collins, Mark C. Rosamond, Richard J. Curry   +6 more
wiley   +1 more source

Rear-heterojunction GaInP laser power converter with 59% monochromatic efficiency at 590 nm

APL Photonics
Photonic power converters (PPCs) are devices that convert narrowband light at specific wavelengths into electrical energy based on the photovoltaic effect. They are used in optical power transmission systems, which offer advantages over conventional wire
Malte Klitzke, Oliver Höhn, Gerald Siefer, Henning Helmers, Frank Dimroth, David Lackner   +5 more
doaj   +1 more source

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

Advanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu, Xun Zhang, Jack M. Donoghue, Albert D. Smith, Rahul Unnikrishnan, Rhys Thomas, Vahid Nekouie, Jie Luo, Dongchen Hu, Michael Preuss, Philip J. Withers   +10 more
wiley   +1 more source