Results 111 to 120 of about 1,300,845 (243)
First U.S.-ESRO satellite launch late this month [PDF]
, 1967 Telemetry, antenna, command, power, solar array, battery, attitude control, spin-up, de-spin, housekeeping, and thermal control systems for ESRO II satellite - press kit ...
core +1 more source
Advanced Engineering Materials, EarlyView.Iron‐based metallic glass alloys exhibit excellent soft‐magnetic properties, and unprecedented geometrical freedom in the design of soft‐magnetic metallic glass components is made possible by additive manufacturing. An efficient workflow for developing parameters for laser‐based powder bed fusion of a Fe‐based metallic glass alloy is presented along ...
Julia Löfstrand +7 more
wiley +1 more source
Inertial Energy Storage for Spacecraft [PDF]
, 1984 The feasibility of inertial energy storage in a spacecraft power system is evaluated on the basis of a conceptual integrated design that encompasses a composite rotor, magnetic suspension and a permanent magnet (PM) motor/generator for a 3-kW orbital ...
Rodriguez, G. E.
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Effects of Carbon Nanoparticles on Triboelectro‐Induced Surface Defects
Advanced Engineering Materials, EarlyView.Carbon nanoparticles added to grease modify the electrocontact behavior. The synergy of particle concentration and electric current dominates the surface damage of metals in contact. Electrical surface damage caused by current leakage is a critical challenge in high‐performance applications such as electric vehicle (EV) drivetrains and wind turbine ...
Mohsen Tajedini +6 more
wiley +1 more source
The diameter of the nil-clean graph of $ \mathbb{Z}_n $
AIMS MathematicsLet $ R $ be a ring with identity. An element $ r $ was called to be nil-clean if $ r $ was a sum of an idempotent and a nilpotent element in $ R $.
Huadong Su , Zhunti Liang
doaj +1 more source
Apparatus to measure the mid-infrared spectral emittance of cold powders in a vacuum [PDF]
Apparatus for measuring mid-infrared spectral emission from cold powders in ...
Bauman, C. A., Goetz, A. F. H.
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Advanced Engineering Materials, EarlyView.This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert +7 more
wiley +1 more source
A new classification and database for stratospheric dust particles [PDF]
, 1983 With the increasing number of stratospheric particles available for study (via the U2 and/or WB57F collections), it is essential that a simple, yet rational, classification scheme be developed for general use.
Kordesh, Kathleen M. +2 more
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Advanced Engineering Materials, EarlyView.Microstructural evolution and hardness optimization along the cross‐section of friction stir welded AA6061/AlSi10MgMn joints, for electric vehicle battery housings, were investigated. Postweld aging between 170°C and 220°C enhances hardness uniformity within the nugget zone.
Emanuele Ghio, Emanuela Cerri
wiley +1 more source
Advanced Engineering Materials, EarlyView.Herein, environmental scanning electron microscopy (ESEM) is discussed as a powerful extension of conventional SEM for life sciences. By combining high‐resolution imaging with variable pressure and humidity, ESEM allows the analysis of untreated biological materials, supports in situ monitoring of hydration‐driven changes, and advances the functional ...
Jendrian Riedel +6 more
wiley +1 more source