Results 111 to 120 of about 21,562 (278)
Space travel in a high-altitude environment: One more step in human BioSpaceForming
BLDE University Journal of Health Sciences, 2018 BACKGROUND: Currently, space programs use sea-level pressures (760 mmHg) and normoxia (21% oxygen fraction) in space capsules. When astronauts need to go for a spacewalk, the pressure has to be reduced to 1/3 that of sea level (240 mmHg).
Gustavo Rafael Zubieta-Calleja +1 more
doaj +1 more source
Advanced Science, EarlyView.The first TrFE‐free ferroelectric polymers exhibiting concurrently a morphotropic phase boundary and high Curie temperature are reported through a grafting strategy, which is completely different from previous methods to design MPB by composition and irradiation. This finding offers a cost‐effective solution to decode the long‐standing inverse relation
Zekai Fei +6 more
wiley +1 more source
Origin and Evolution of Massive Black Holes in Galactic Nuclei [PDF]
, 1999 Beyond all reasonable doubt, black holes are commonly found in the nuclei of most normal galaxies. In recent years, dynamical measurements of hole masses have transformed the study of their functioning and evolution. In particular, relating their masses,
Blandford, R. D.
core +2 more sources
Quantifying Strain and Its Effect on Charge Transport in Ge/Si Core/Shell Nanowires
Advanced Science, EarlyView.This work demonstrates strain engineering in Ge/Si core–shell nanowires (CS NWs) by tuning the Ge core‐Si shell dimensions. Polarization‐resolved µ‐Raman and geometrical phase analysis quantify the resulting strain. Electronic transport measurements demonstrate record hole mobilities up to 25 400 cm2/Vs, highlighting these Ge/Si CS NWs as a promising ...
Aswathi K. Sivan +14 more
wiley +1 more source
Advanced Science, EarlyView.The action spectrum of a tailored azobenzene is shifted toward bio‐optical window through the chemical modification of its singlet and triplet energy levels. Consequently, the bidirectional photo‐switching of azobenzene in physiological conditions is achieved when excited by red and far‐red light, which offers greater tissue penetration.
Mila Miroshnichenko +11 more
wiley +1 more source
Applications of aerospace technology in biology and medicine [PDF]
Utilization of National Aeronautics and Space Administration (NASA) technology in medicine is discussed. The objective is best obtained by stimulation of the introduction of new or improved commercially available medical products incorporating aerospace ...
Bass, B. +7 more
core +1 more source
Exploratory Research on MEMS Technology for Air-Conditioning and Heat-Pumps [PDF]
, 1998 This report details the efforts to exploit micro-electrical-mechanical-systems (MEMS) and micro device technologies to improve control of multi-channel evaporators by reducing maldistribution among channels, and increase capacity and efficiency of ...
Hrnjak, P.S. +2 more
core
, 2018 This paper deals with existence and uniqueness results for a transient nonlinear radiative-conductive system in three-dimensional case. This system describes the heat transfer for a grey, semi-transparent and non-scattering medium with general boundary ...
Ghattassi, Mohamed +2 more
core +3 more sources
Study on an Evaporative Cooling Vest for Farm Workers [PDF]
Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2020 Aarish Maqsood +3 more
openaire +1 more source
Advanced Science, EarlyView.Programmable hydration pathways enable reconfigurable ionic thermoelectrics in polyquaternium hydrogels. By coupling microscopic solvation, mesoscale water channels, and macroscopic boundary control, hydration‐gated protonics decouples thermopower, response speed, and stability.
Zehao Zhao, Yun Shen, Dongyan Xu
wiley +1 more source