Results 101 to 110 of about 4,641,331 (294)

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +1 more source

Flexural Behavior of 3D‐Printed Porous Bouligand‐Structured Polymers: Influence of Pitch Angle and Porosity

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines how helicoidal architectures with different porosities respond to bending. Adjusting layer angle and spacing in 3D‐printed polymers reveals clear tradeoffs between stiffness, strength, and energy absorption. Experiments and simulations highlight designs that distribute stress effectively, offering pathways for optimizing lightweight
Praveenkumar Subhash Patil   +2 more
wiley   +1 more source

Outer space should be a pillar of Prabowo’s administration [PDF]

open access: yes
As the world moves toward an era of technological advancement, the importance of outer space as a strategic domain has become increasingly clear. For Indonesia, the potential benefits of prioritizing space as national interest under the leadership of ...
Putro, Yaries Mahardika   +1 more
core   +2 more sources

Some Observations on Outer Space from Earth and Some Observations on Earth from Outer Space

open access: yesOASIS, 2014
This paper will present the author’s views on the use of outer space, and the impact of space activities on terrestrial undertakings. The main focus of this essay will be on satellites, which have radically changed the way we communicate, and also how we
Sylvia Ospina
doaj  

Discovery of an Ultrafast Outflow and Insights into the Coronal Geometry of the Super-Eddington Active Galactic Nucleus IRAS F12397+3333

open access: yesThe Astrophysical Journal
We report the discovery of ultrafast outflows (UFOs) in the super-Eddington active galactic nucleus (AGN) IRAS F12397+3333, detected in both the hard- and soft-X-ray bands, and present an investigation of the coronal geometry and accretion flow ...
Deblina Lahiri   +2 more
doaj   +1 more source

The Effect of Outer Space and Other Environmental Cues on Bacterial Conjugation. [PDF]

open access: yesMicrobiol Spectr, 2023
Piscon B   +9 more
europepmc   +1 more source

Density Measurement of Irradiated and Nonirradiated Zirconium Oxide by Ptychographic X‐Ray Computed Tomography (PXCT)

open access: yesAdvanced Engineering Materials, EarlyView.
Mass density governs the protective behavior of oxide layers on nuclear fuel cladding. Ptychographic X‐ray computed tomography measures zirconium oxide grown on Zircaloy‐4 under reactor and autoclave conditions, revealing nearly identical bulk densities of 5.1 ± 0.80 g cm−3.
Okan Yetik   +9 more
wiley   +1 more source

Behavior of glioblastoma brain tumor stem cells following a suborbital rocket flight: reaching the "edge" of outer space. [PDF]

open access: yesNPJ Microgravity, 2023
Garcia CA   +7 more
europepmc   +1 more source

High‐Entropy Alloy Interlayers Toward Advanced Joining for High‐Performance Structural Applications: Current Progress and Emerging Challenges

open access: yesAdvanced Engineering Materials, EarlyView.
HEA interlayers offer a versatile route for joining high‐performance structural materials. Their compositional and structural design regulates interfacial reactions, suppresses brittle IMCs, and improves metallurgical bonding. Sandwich interlayers further integrate defect healing with precipitation strengthening, enabling improved strength–ductility ...
Lin Yuan   +4 more
wiley   +1 more source

Article VI of the Outer Space Treaty - State Responsibility as a Means to Ensure the Protection of Human Rights by Private Companies in Outer Space Settlements

open access: yesPotchefstroom Electronic Law Journal
The current space arena has changed significantly since the 1950s when outer space activities commenced. Although states have remained the primary actors in regulating the use of outer space, the extent to which private companies would become involved ...
Anél Ferreira-Snyman
doaj   +1 more source

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