Results 141 to 150 of about 6,136,424 (429)

On Optimal Trajectory in Space Flight [PDF]

Journal of Advance Research in Applied Science (ISSN: 2208-2352), 2016
Are investigated a trajectory of new type in distant, space flights unlike usual trajectories of direct flight to heavenly object (Moon) it is supposed to use asymmetry of a gravitational field and to carry out flight bypassing the most power gravitational impact on the spacecraft. It leads to economy of power for 20-30 %.
openaire   +4 more sources

Over 18% Efficiency from Halogen‐Free Solvent‐Processed Polymer Solar Cells Enabled by Asymmetric Small Molecule Acceptors with Fluoro‐Thienyl Extended Terminal

Advanced Functional Materials, EarlyView.
An asymmetric non‐fullerene acceptor BTP‐FT is developed by extending the end group of Y6‐BO with thiophene. The conformation of the molecule is determined by the noncovalent F···S interaction as demonstrated by 2D NMR and simulations. An efficiency of 18.39% is achieved in the resulting ternary solar cells processed from toluene.
Jingnan Wu, Fengbo Sun, Xinxin Xia, Leandro R. Franco, Qiaonan Chen, Yúang Fu, Rafael B. Ribeiro, Xinhui Lu, C. Moyses Araujo, Xunchang Wang, Renqiang Yang, Xia Guo, Donghong Yu, Maojie Zhang, Ergang Wang   +14 more
wiley   +1 more source

Mathematical Modeling of Aerodynamic Space -to - Surface Flight with Trajectory for Avoid Intercepting Process [PDF]

arXiv, 2006
Modeling has been created for a Space-to-Surface system defined for an optimal trajectory for targeting in terminal phase with avoids an intercepting process. The modeling includes models for simulation atmosphere, speed of sound, aerodynamic flight and navigation by an infrared system.
arxiv  

Extended mission life support systems [PDF]

, 1985
Extended manned space missions which include interplanetary missions require regenerative life support systems. Manned mission life support considerations are placed in perspective and previous manned space life support system technology, activities and ...
Quattrone, P. D.
core   +1 more source

A MANUALLY OPERATED PELLET FEEDER FOR PRIMATES IN SPACE FLIGHT [PDF]

, 1964
Marvin E. Grunzke
openalex   +1 more source

Vestibular-somatosensory convergence in head movement control during locomotion after long-duration space flight.

Journal of Vestibular Research-Equilibrium & Orientation, 2012
Space flight causes astronauts to be exposed to adaptation in both the vestibular and body load-sensing somatosensory systems. The goal of these studies was to examine the contributions of vestibular and body load-sensing somatosensory influences on ...
A. Mulavara, T. Ruttley, Helen S. Cohen, B. Peters, Christopher A Miller, Rachel R Brady, L. A. Merkle, J. Bloomberg   +7 more
semanticscholar   +1 more source

Exploring Electronic States and Ultrafast Electron Dynamics in AlInP Window Layers: The Role of Surface Reconstruction

Advanced Functional Materials, EarlyView.
This study examines the surface characteristics of AlInP (001), crucial for advanced solar cells and photoelectrochemical devices. Using theoretical modeling and experiments, it identifies how phosphorus‐rich and indium‐rich surfaces create mid‐gap states that pin the Fermi level and influence ultrafast electron dynamics.
Mohammad Amin Zare Pour, Sahar Shekarabi, Isaac Azahel Ruiz Alvarado, Jonathan Diederich, Yuyings Gao, Agnieszka Paszuk, Dominik C. Moritz, Wolfram Jaegermann, Dennis Friedrich, Roel van de Krol, Wolf Gero Schmidt, Thomas Hannappel   +11 more
wiley   +1 more source

Complex changes in climatic suitability for Cassin’s Sparrow ( Peucaea cassinii ) revealed by retrospective ecological niche modeling

Journal of Field Ornithology
Conservation status assessments for Cassin’s Sparrow ( Peucaea cassinii ) show considerable variability across the species’ North American range. In this study, we combine data from NASA’s Modern-Era Reanalysis for Research and Applications, Version 2 ...
John L. Schnase, Mark L. Carroll, Paul M. Montesano, Virginia A. Seamster   +3 more
doaj   +1 more source

Aerodynamic protection for space flight vehicles Patent [PDF]

, 1967
Development and characteristics of protective coatings for ...
Parmley, R. T.
core   +1 more source

Hydrogen Standard Work at Goddard Space Flight Center [PDF]

, 1968
H.E. Peters, T. E. Mcgunigal, E. H. Johnson   +2 more
openalex   +1 more source