Results 81 to 90 of about 111,221 (213)

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

The Canadian Journal of Chemical Engineering, EarlyView.
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

Study of Silicon Photomultipliers for the GRIPS Calorimeter Module

Acta Polytechnica, 2013
GRIPS is a proposed gamma-ray (200 keV to 80 MeV) astronomy mission, which incorporates a pair-creation and Compton scattering telescope, along with X-ray and infrared telescopes.
Alexei Ulyanov, Lorraine Hanlon, Sheila McBreen, Suzanne Foley   +3 more
doaj  

X-Ray and Optical Polarization Aligned with the Radio Jet Ejecta in GX 339–4

The Astrophysical Journal Letters
We present the first X-ray polarization measurements of GX 339–4. IXPE observed this source twice during its 2023–2024 outburst, once in the soft-intermediate state and again during a soft state.
G. Mastroserio, B. De Marco, M. C. Baglio, F. Carotenuto, S. Fabiani, T. D. Russell, F. Capitanio, Y. Cavecchi, S. Motta, D. M. Russell, M. Dovčiak, M. Del Santo, K. Alabarta, A. Ambrifi, S. Campana, P. Casella, S. Covino, G. Illiano, E. Kara, E. V. Lai, G. Lodato, A. Manca, I. Mariani, A. Marino, C. Miceli, P. Saikia, A. W. Shaw, J. Svoboda, F. M. Vincentelli, J. Wang   +29 more
doaj   +1 more source

The high energy X-ray probe (HEX-P): instrument and mission profile

Frontiers in Astronomy and Space Sciences
The High Energy X-ray Probe (HEX-P) is a proposed NASA probe-class mission that combines the power of high angular resolution with a broad X-ray bandpass to provide the necessary leap in capabilities to address the important astrophysical questions of ...
Kristin K. Madsen, Javier A. García, Javier A. García, Daniel Stern, Rashied Amini, Stefano Basso, Diogo Coutinho, Brian W. Grefenstette, Steven Kenyon, Alberto Moretti, Patrick Morrissey, Kirpal Nandra, Giovanni Pareschi, Peter Predehl, Arne Rau, Daniele Spiga, Jörn Wilms, William W. Zhang   +17 more
doaj   +1 more source

Emerging Technologies for Timely Point‐of‐Care Diagnostics of Skin Cancer

Global Challenges, EarlyView.
With the global incidence of skin cancer on the rise and a persistent lack of rapid, noninvasive and sensitive point‐of‐care diagnostic platforms, current and emerging technologies are critically reviewed. Among these, the emerging Raman spectroscopy system is identified as a promising complementary to conventional costly and invasive methods, offering
Jarrod L. Thomas, Adrian H. M. Heagerty, Pola Goldberg Oppenheimer   +2 more
wiley   +1 more source

Multiwavelength Study of a Hyperluminous X-Ray Source near NGC 6099: A Strong IMBH Candidate

The Astrophysical Journal
We report on the intriguing properties of a variable X-ray source projected at the outskirts of the elliptical galaxy NGC 6099 ( d  ≈ 139 Mpc). If truly located near NGC 6099, this is a hyperluminous X-ray source that reached an X-ray luminosity L _X ...
Yi-Chi Chang, Roberto Soria, Albert K. H. Kong, Alister W. Graham, Kirill A. Grishin, Igor V. Chilingarian   +5 more
doaj   +1 more source

Review on Uniaxial Negative Thermal Expansion of Tr‐Zr Superconductors

MetalMat, EarlyView.
In this paper, we review recent research progress of a study of uniaxial negative thermal expansion (NTE) along the c‐axis with transition (Tr) metal zirconide TrZr2 and TrZr3 superconductors. We introduce the unique thermal expansion properties of TrZr2 and TrZr3 and the flexibility of controlling thermal expansion properties.
Yuto Watanabe, Yoshikazu Mizuguchi
wiley   +1 more source

Estimation of X-ray scattering impact in imaging degradation for the SIMBOL-X telescope [PDF]

arXiv, 2008
The imaging performance of X-ray optics (expressed in terms of HEW, Half-Energy-Width) can be severely affected by X-ray scattering caused by the surface roughness of the mirrors. The impact of X-ray scattering has an increasing relevance for increasing photon energy, and can be the dominant problem in a hard X-ray telescope like SIMBOL-X. In this work
arxiv  

Constraints on the X-Ray and Very-high-energy Gamma-Ray Flux from Supernova Remnant W44

The Astrophysical Journal
Observations of GeV gamma-ray emission from the well-studied mixed-morphology supernova remnant (SNR) W44 by Fermi-Large Area Telescope and AGILE imply that it is a site of significant cosmic-ray acceleration.
A. Archer, P. Bangale, J. T. Bartkoske, W. Benbow, J. H. Buckley, Y. Chen, J. L. Christiansen, A. J. Chromey, A. Duerr, M. Errando, M. Escobar Godoy, S. Feldman, Q. Feng, J. Foote, L. Fortson, A. Furniss, W. Hanlon, O. Hervet, C. E. Hinrichs, J. Holder, T. B. Humensky, W. Jin, M. N. Johnson, P. Kaaret, M. Kertzman, M. Kherlakian, D. Kieda, T. K. Kleiner, N. Korzoun, S. Kumar, S. Kundu, M. J. Lang, G. Maier, M. Lundy, M. J. Millard, C. L. Mooney, P. Moriarty, R. Mukherjee, W. Ning, R. A. Ong, M. Pohl, E. Pueschel, J. Quinn, P. L. Rabinowitz, K. Ragan, P. T. Reynolds, D. Ribeiro, E. Roache, L. Saha, M. Santander, G. H. Sembroski, R. Shang, D. Tak, A. K. Talluri, J. V. Tucci, D. A. Williams, S. L. Wong, J. Woo   +57 more
doaj   +1 more source

Ergonomic Evaluation of a Walk‐Behind AI‐Based Cotton Fertilizer Applicator

Journal of Field Robotics, EarlyView.
ABSTRACT The mechanization of agricultural operations greatly influences both the efficiency of farming operations and the health and safety of farm workers. Human exposure to working environments represents a significant hazard associated with machines and the environment.
Arjun Chouriya, Peeyush Soni, Smrutilipi Hota, E. V. Thomas   +3 more
wiley   +1 more source