Results 151 to 160 of about 253,475 (297)

Mathematical modelling of essential oil supercritical carbon dioxide extraction from chamomile flowers

open access: yesThe Canadian Journal of Chemical Engineering, Volume 103, Issue 6, Page 2737-2750, June 2025.
Abstract This study investigates the supercritical extraction process of essential oil from chamomile flowers. Essential oils of chamomile are used extensively for medicinal purposes. Many different chamomile products have been developed, the most popular of which is herbal tea.
Oliwer Sliczniuk, Pekka Oinas
wiley   +1 more source

XMM-Newton Perspective of the Unique Magnetic Binary-ϵ Lupi

open access: yesThe Astrophysical Journal
The ϵ Lupi A (HD 136504) system stands out among magnetic massive binaries as the only short-period binary system in which both components have detectable magnetic fields.
Ayan Biswas   +5 more
doaj   +1 more source

Laser Terminals on CubeSats: Developments for Telecommunications and Quantum Links

open access: yesInternational Journal of Satellite Communications and Networking, Volume 43, Issue 3, Page 133-146, May/June 2025.
ABSTRACT Satellite‐based laser communication is an emerging technology that is finding its way from research to industry. Compared to radio frequency (RF) systems, it has a more efficient size, weight, and power budget and, furthermore, is license free.
Christian Roubal   +8 more
wiley   +1 more source

Photonic Integrated Circuits for Optical Satellite Links: A Review of the Technology Status and Space Effects

open access: yesInternational Journal of Satellite Communications and Networking, Volume 43, Issue 3, Page 210-228, May/June 2025.
ABSTRACT Optical satellite communications provide high‐data rates with compact and power efficient payloads that can solve the bottlenecks of RF technologies. Photonic integrated circuits have the potential to reduce the cost, size, weight, and power consumption of satellite laser communications terminals, by integrating all the required photonic ...
Giulio Terrasanta   +4 more
wiley   +1 more source

A proposed orbiting x-ray telescope [PDF]

open access: yes
Design of totally reflecting orbiting X-ray ...
Ziock, K.
core   +1 more source

Constructing Stable Bifunctional Electrocatalyst of Co─Co2Nb5O14 with Reversible Interface Reconstitution Ability for Sustainable Zn‐Air Batteries

open access: yesAdvanced Science, Volume 12, Issue 17, May 8, 2025.
A bifunctional electrocatalyst of Co─Co2Nb5O14 with a strong interaction interface is fabricated, and a bidirectional adsorption/migration mechanism of oxygen species between the reversible active sites of Nb5+/Nb4+ has been proposed. With the catalytic strategy design, the liquid Zn‐air batteries exhibits long‐term stability over 2050 cycles, and the ...
Shuo Chen   +7 more
wiley   +1 more source

A New X-Ray Census of Rotation Powered Pulsars

open access: yesThe Astrophysical Journal
To date, over 4000 pulsars have been detected. In this study, we identify 231 X-ray counterparts of Australia Telescope National Facility (ATNF) pulsars by performing a spatial cross match across the Chandra, XMM-Newton observational catalogs.
Yu-Jing Xu   +4 more
doaj   +1 more source

High‐Resolution X‐Ray and Ultraviolet Spectroscopy of the Complex Intrinsic Absorption in NGC 4051 withChandraand theHubble Space Telescope [PDF]

open access: bronze, 2001
Matthew J. Collinge   +8 more
openalex   +1 more source

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