Results 81 to 90 of about 4,192,467 (303)

Selective elimination of quiescent cancer cells by dequalinium chloride via ROS‐mediated ferroptosis

open access: yesFEBS Open Bio, EarlyView.
Dequalinium chloride (DQ) selectively eliminates quiescent cancer cells (QCCs) by amplifying mitochondrial ROS. QCCs exhibit elevated basal ROS and limited redox‐buffering capacity, making them vulnerable to further ROS increases. DQ‐induced ROS exceeds the tolerance threshold, triggering lipid peroxidation and ferroptosis, whereas proliferating cells ...
Kotaro Miyamoto   +14 more
wiley   +1 more source

Enhancing Passive Microwave Brightness Temperature Using Dual-Attention SRGAN

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
This study presents a dual-attention super-resolution generative adversarial network (DA-SRGAN) framework to enhance the spatial resolution of passive microwave (PMW) brightness temperature (TB) data from 12.5/25 km to 3.125/6.25 km.
Junhwa Chi, Jinku Park, Hyun-Cheol Kim
doaj   +1 more source

Brightness temperature constraints from interferometric visibilities

open access: yes, 2015
Context. The brightness temperature is an effective parameter that describes the physical properties of emitting material in astrophysical objects. It is commonly determined by imaging and modeling the structure of the emitting region and estimating its ...
Andrei Lobanov, Lobanov, A.
core   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios   +5 more
wiley   +1 more source

A Measurement of the Sky Brightness Temperature at 408 MHz

open access: yes, 1969
The absolute value of the background brightness temperature has been measured at a radiofrequency of 408 MHz. Observations were made with a large pyramidal "standard gain" horn aerial and the aerial temperatures were compared direct with the temperature ...
RM Price
core   +1 more source

Temperature retrieval algorithm for brain temperature monitoring using microwave brightness temperatures [PDF]

open access: yes, 2001
A solution to the inverse problem of retrieving temperature from a set of microwave brightness temperatures together with a priori information regarding weighting functions and heat transfer within the infant head is introduced.
Mizushina, S.   +3 more
core   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

open access: yesAdvanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich   +3 more
wiley   +1 more source

The brightness temperature of Mercury at 150 and 240 GHz

open access: yes, 2011
During the Italian Antarctic Expedition 2004/2005 we observed Mercury at 150 and 240 GHz. The observations have been carried out by means of the 2.6m OASI telescope.
L. Pizzo   +5 more
core   +2 more sources

Modeling of brightness temperature in biological tissue

open access: yesJournal of Physics: Conference Series, 2019
Abstract Microwave radiothermometry is a passive and non-invasive technique which is used to measure the depth temperature of biological tissue. The method of microwave radio thermometry is based on measuring the intensity of the own electromagnetic radiation of the internal tissues of the patient in the ultra-high frequency range.
M Polyakov, V Levshinskii, A Khoperskov
openaire   +1 more source

Home - About - Disclaimer - Privacy