Results 21 to 30 of about 61,720 (230)

Following the Path That Heroes Carved into History: Space Tourism, Heritage, and Faith in the Future

Religions, 2020
Human spaceflight is likely to change in character over the 21st century, shifting from a military/governmental enterprise to one that is more firmly tied to private industry, including businesses devoted to space tourism.
Deana L. Weibel
doaj   +1 more source

Música y fiesta en la construcción del territorio nasa (Colombia)

Revista Colombiana de Antropología, 2008
El pueblo nasa , en el sur occ idente andino de Colombia, reafirma y construye a diario sus territorios no sólo por medios legales, trabajando o luchando por la tierra, sino también con ritos, fiestas, música y bailes. Este artículo, basado en un trabajo
Carlos Miñana Blasco
doaj   +3 more sources

Study of the SST turbulence model for the 2D NASA wall-mounted hump separated FLOW problem with plenum case [PDF]

E3S Web of Conferences
The article presents the results of the standard SST turbulence model in the Comsol Multiphysics 6.1 software package for 2D NASA wall-mounted hump separated flow with plenum case problems, which are presented in the NASA database.
Madaliev Murodil, Abdulkhaev Zokhidjon, Kurpayanidi Konstantin, Abdullayev Alisher, Ilyosov Asrorjon   +4 more
doaj   +1 more source

Legal Framework of Orbital Transportation Services: US experience [PDF]

Advanced Space Law, 2018
Space law is a set of laws that regulate activity in space, covering domestic and international agreements, rules and principles. Research and use of space resources in the majority is a collective activity , which involved dozens of countries. It is the
Ivanna Nepyivoda
doaj   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

Extrusion‐Based Additive Manufacturing of Advanced Ceramics: Strengthening Mechanisms and Process Optimization Review

Advanced Engineering Materials, EarlyView.
This review comprehensively evaluates extrusion‐based additive manufacturing for advanced ceramics, detailing feedstock options and key process parameters. By critically addressing defect mechanisms like porosity and cracking, the work highlights optimization strategies through machine learning and advanced postprocessing.
Meisam Bakhtiari, Mohammad Hadi Sheikh‐Ansari, Avinash Borgaonkar, Mehran Dadkhah, Abdollah Saboori   +4 more
wiley   +1 more source

La experiencia de la traducción como apropiación simbólica y práctica ritual en los nasa, Colombia

Revista de Estudios Sociales, 2015
In general terms, the idea of translating offers a conventional sense of bridging the linguistic gaps between different languages. However, the implications of undertaking such a task among ethnic groups are rarely examined, at least in a practical sense
Jairo Tocancipá-Falla
doaj   +1 more source

Mechanisms of Degradation in Li‐Ion Batteries Under Low Temperature Exposures

Advanced Functional Materials, EarlyView.
Low‐temperature exposures, or freeze‐thaw cycles, are observed to significantly accelerate the degradation of Li‐ion batteries. A combination of electrolyte phase separation and mechanochemical stress leads to reversible and irreversible performance losses.
Mihir Ojha, Shervin Alaei, Jayanth Ramamurthy, Luke P. Lounsbury, Md Mahdi Ul Ishtiaque, Stuart Leland, Niraj P. Atale, Sourav Das, Siddhartha Pathak, Pranav Shrotriya, Steve W. Martin, Todd A. Kingston, Cary L. Pint   +12 more
wiley   +1 more source

Stability of Medicinal Nanoemulsions to Spaceflight: Insights From the StarMed Experiment

Advanced Healthcare Materials, EarlyView.
Chitosan‐coated melatonin nanoemulsions (MN) recovered from a sounding rocket mission preserve droplet size and controlled‐release behavior, whereas uncoated nanoemulsions show ageing‐driven droplet growth and increased accessible drug fraction. Simple polymer coatings thus enhance the flight resilience of liquid space medicines under cumulative launch
Modupe Adebowale, Nguyen Van Duc Long, Philip M. Williams, Jens Hauslage, Volker Hessel   +4 more
wiley   +1 more source

Far‐Infrared Hyperbolic Phonon–Polaritons in Zirconium Disulfide

Advanced Materials, EarlyView.
An unpatterned ZrS2${\rm ZrS}_2$ flake, coupled to far‐field infrared light by metal nanoribbons, reveals hyperbolic phonon polaritons with multiple higher‐order branches and effective refractive indices up to 223. This resonator‐assisted approach establishes ZrS2${\rm ZrS}_2$ as a compact van der Waals platform for deeply subwavelength far‐infrared ...
Subhodip Saha, Ryan Kowalski, Joseph R. Matson, Thomas G. Folland, Tony Low, Joshua D. Caldwell, In‐Ho Lee, Sang‐Hyun Oh   +7 more
wiley   +1 more source