Results 91 to 100 of about 271,699 (362)
4D printing and its key technologies
Cailiao gongcheng, 2019 4D printing can be defined as the evolution of 3D printing structure in terms of shape, performance and function. It has time dependence, printer independence and predictability, and its smart dynamic performance creates promising capabilities and broad ...
SHEN Zi-cai +4 more
doaj +1 more source
Journal of Spacecraft and Rockets, 2019 This paper introduces R-selected spacecraft as a field of study that draws from concepts in ecology, and introduces the Monarch spacecraft as a case study for a system designed in accordance with the principles of this field. The Monarch is a 2.5-gram spacecraft that is the first to trade quantity, rather than cost, for low mission risk.
Adams, Van, Peck, Mason
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Two Types of q$$ q $$‐Gaussian Distributions Used to Study the Diffusion in a Finite Region
Mathematical Methods in the Applied Sciences, EarlyView.ABSTRACT In this work, we explore both the ordinary q$$ q $$‐Gaussian distribution and a new one defined here, determining both their mean and variance, and we use them to construct solutions of the q$$ q $$‐deformed diffusion differential equation. This approach allows us to realize that the standard deviation of the distribution must be a function of
Won Sang Chung +3 more
wiley +1 more source
Numerical Study of the Thermal Model on High Uniformity Temperature Test Platform
MATEC Web of Conferences, 2019 The surface temperature uniformity of a test platform with an effective test area of 600 mm × 600 mm was numerically studied. The conductive heat transfer model for the test platform and the device under test (DUT) installed on the surface was ...
Wang Zijuan +3 more
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Unambiguous signal reconstruction for GEO-LEO bistatic SAR with azimuth multichannel
The Journal of Engineering, 2019 Spaceborne bistatic multichannel synthetic aperture radar (MC-SAR) system employed inclined geosynchronous Earth orbit (GEO) transmitter and low-Earth-orbit (LEO) receiver can provide fine spatial resolution and a vast area of surveillance, which ...
Yuekun Wang +4 more
doaj +1 more source
Space Programs and Technologies Conference, 1995 TRW is under contract to the Republic of China's (ROC) National Space Program Office (NSPO) to build the spacecraft for ROCSAT-1, the first satellite in the ROC's civilian space program. The ROCSAT-1 spacecraft is the next generation of TRW's Eagle-class lightsats which were developed for the USAF's Space Test Experiment Platform (STEP) program and ...
Lillie, Charles +2 more
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ChemistryOpen, EarlyView.Herein, the synthesis and production of n‐type ZnAlInO semiconductor materials is achieved utilizing sol–gel and cold pressing methods for fabrication in aerospace thermoelectric generators applications. The Seebeck coefficient and power factor values increase with the addition of template samples, reaching a maximum of −162.63 μV K−1 and 0.44 mW mK−2,
Enes Kilinc +4 more
wiley +1 more source
Spacecraft Assembly Process Bill of Material Construction Technology For Single-Piece Production
MATEC Web of Conferences, 2017 For the spacecraft assembly Process Bill of Material (PBOM) traditional construction technology, the product assembly relationship, product assembly information are not visual for spacecraft assembly and integration department, leading to the manual PBOM
He Wen-xing, Chen Chang-yu, Liu Yu-gang
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Polymer Composites, EarlyView.Use of ROS TP skins in sandwich composite structures. Abstract Despite the advantages of recycled randomly oriented strand (ROS) composites over recycled grinded ones, the warpage issue hinders their adaptation in the industry due to tolerance requirements.
Yağız Özbek +5 more
wiley +1 more source
Photographic Observations of the Hayabusa Re-entry
, 2011 We analyzed photographic observations of the re-entry of the Hayabusa spacecraft and capsule over Southern Australia on June 13, 2010, 13:52 UT. Radiometric measurements of the brightness of the associated fireball were obtained as well.
Abe, Shinsuke +4 more
core +1 more source