Results 101 to 110 of about 8,057 (291)

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

Advances and Trends in Terrain Classification Methods for Off‐Road Perception

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT Off‐road autonomous vehicles (OAVs) are becoming increasingly popular for navigating challenging environments in agriculture, military, and exploration applications. These vehicles face unique challenges, such as unpredictable terrain, dynamic obstacles, and varying environmental conditions.
Tanzila Arafin   +5 more
wiley   +1 more source

Space Economy and Sustainability: A Systematic Review

open access: yesSustainable Development, EarlyView.
ABSTRACT The space economy is booming thanks to the increasing investment of government agencies, private companies, and venture capitalists. From the beginning of the New Space era, the array of actors involved in the development of technologies for extra‐terrestrial activities has increased, as well as the downstream applications that foster ...
Marianna Valente   +2 more
wiley   +1 more source

Stairway to impact or highway to failure? A cognitive perspective on business model design processes in nascent sustainable ventures

open access: yesStrategic Entrepreneurship Journal, EarlyView.
Abstract Research Summary Sustainable new ventures seeking to tackle grand challenges such as climate change or biodiversity loss through new business models face the difficult task of reconciling social and ecological goals with profit. To provide a better understanding of how founders balance such tensions and develop viable business models, this ...
Eduard Esau   +4 more
wiley   +1 more source

Numerical Analysis of Ejector Flow Performance for High-Altitude Simulation

open access: yesAerospace
In this study we perform a computational numerical analysis to examine the flow characteristics of a system composed of a rocket engine, supersonic diffuser, and ejector system.
Chae-Hyoung Kim, Chang-Su Park
doaj   +1 more source

Resource redeployment as an entry advantage in resource‐poor settings

open access: yesStrategic Management Journal, EarlyView.
Abstract Research Summary Scarcity of productive factors poses a challenge for firms entering underdeveloped regions. We theorize that incumbent firms can overcome scarcity of skilled human capital in local labor markets by redeploying workers from existing units.
Jasmina Chauvin   +2 more
wiley   +1 more source

The problem of combustion instability in liquid rocket engines

open access: yesChallenges and Issues of Modern Science
The purpose of this work is to carry out an overview on combustion instability in liquid propellant rocket engines, its classification, the main principles of occurrence as well as ways to prevent the phenomena while designing of the prospective engine.
Samir Vekilov   +2 more
doaj  

Intelligent Maintenance Approaches for Improving Photovoltaic System Performance and Reliability

open access: yesSolar RRL, EarlyView.
This review evaluates how cutting‐edge technologies, such as Internet of Things and Artificial Intelligence, c. The article provides recommendations and future directions for the development of standardized frameworks to optimize maintenance practices and improve solar asset management. Photovoltaic (PV) systems play a pivotal role in the transition to
Demetris Marangis   +5 more
wiley   +1 more source

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