Results 101 to 110 of about 271,699 (362)

The Impact of Lighting Conditions on Users' Alertness and Working Memory in Confined Spaces

open access: yesPsyCh Journal, EarlyView.
ABSTRACT Confined spaces, characterized by limited natural ventilation, the absence of windows, and restricted access to natural light, present distinct challenges. While most studies focus on lighting's effect on sleep, confined spaces are now more often used for short‐term work‐rest cycles, especially in office settings.
Zaoyi Sun   +7 more
wiley   +1 more source

Design of drive control for digital transmission relay antenna based on FPGA miniaturization

open access: yesDianzi Jishu Yingyong, 2019
In order to meet the requirements of spacecraft miniaturization design, a single chip anti-fuse FPGA is used as main control chip for driving relay antenna.
Hou Chao   +3 more
doaj   +1 more source

Microbial burden prediction model program [PDF]

open access: yes, 1971
Model supplements biological surveys of spacecraft by simulating microbial burden accumulation process during periods when surveys are not taken. Important application of model is to predict microbial loading on spacecraft landing capsule immediately ...
Meuser, R. F., Nelson, B. A.
core   +1 more source

Effects of Galactic Irradiation on Thermal and Electronic Transport in Tungsten

open access: yesphysica status solidi (b), EarlyView.
This atomic‐scale study reveals how low‐to‐mid‐energy space irradiation alters tungsten's thermal and electronic behavior, even at low defect levels. Focusing on vacancy sites in bulk and near grain boundaries, it employs two novel approaches: site‐projected thermal conductivity and the N2$^{2}$ method for the thermal and electronic response analysis ...
Chinonso Ugwumadu   +2 more
wiley   +1 more source

Numerical Calculation of Gas–Liquid Two-Phase Flow in Tesla Valve

open access: yesAerospace
In this paper, the gas–liquid two-phase flow within a Tesla valve under zero-gravity conditions is numerically studied. Based on the VOF model and the inlet two-phase separation method, the forward and reverse flow patterns and pressure drop changes in a
Jie Gong   +3 more
doaj   +1 more source

Orbit control of high area-to-mass ratio spacecraft using electrochromic coating [PDF]

open access: yes, 2010
This paper presents a novel method for the orbit control of high area-to-mass ratio spacecraft, such as spacecraft-on-a-chip, future „smart dust‟ devices and inflatable spacecraft.
Colombo, C.   +2 more
core  

Transmission of Sound and Vibration to a Shroud-Enclosed Spacecraft [PDF]

open access: bronze, 1966
Jerome E. Manning   +2 more
openalex   +1 more source

Spacecraft Telecommunications

open access: yes, 2018
6 pages, 1 figure; To be published in the ASP Monograph Series, "Science with a Next-Generation VLA", ed. E. J. Murphy (ASP, San Francisco, CA)
Lazio, T. Joseph W., Asmar, Sami
openaire   +2 more sources

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