Results 11 to 20 of about 255,125 (174)

Microwave Kinetic Inductance Detectors [PDF]

open access: yes, 2005
Low temperature detectors have been a subject of intense interest to the scientific community over the last decade. These detectors work at very low temperatures, often well below 1 Kelvin, to minimize the noise in the measurement of photons.
Mazin, Benjamin A.
core   +1 more source

The physics of CMBR anisotropies [PDF]

open access: yes, 2005
The observed structures in the universe are thought to have arisen from gravitational instability acting on small fluctuations generated in the early universe.
Subramanian, Kandaswamy
core   +2 more sources

Quantum Imprints on CMBR [PDF]

open access: yes, 2023
Quantum cosmology aims to develop a quantum theory of the universe, attempting to answer open questions of physical cosmology, mainly related to the early epochs of the universe. Such a theory aims to unite relativity theory and quantum theory. Here, the
Banerjee, Shreya, Shreya Banerjee
core   +1 more source

Superconducting nanowire single-photon detectors: physics and applications [PDF]

open access: yes, 2012
Single-photon detectors based on superconducting nanowires (SSPDs or SNSPDs) have rapidly emerged as a highly promising photon-counting technology for infrared wavelengths.
Hadfield, Robert H   +5 more
core   +1 more source

Transient and steady-state response properties of movement detectors [PDF]

open access: yes, 1989
Egelhaaf M, Borst A. Transient and steady-state response properties of movement detectors. Journal of the Optical Society of America, A: Optics, Image Science, and Vision.
Egelhaaf, M.   +3 more
core   +1 more source

Directional Tuning Curves, Elementary Movement Detectors, and the Estimation of the Direction of Visual Movement [PDF]

open access: yes, 1990
Both the insect brain and the vertebrate retina detect visual movement with neurons having broad, cosine-shaped directional tuning curves oriented in either of two perpendicular directions.
Hateren, J.H. van, Hateren, J.H. van,
core   +2 more sources

COMPASS: a 2.6m telescope for CMBR polarization studies [PDF]

open access: yes, 2020
. COMPASS (COsmic Microwave Polarization at Small Scale) is an experiment devoted to measuring the polarization of the CMBR.
J Gundersen   +10 more
core   +2 more sources

Methane-specific gas detectors: the effect of natural gas composition [PDF]

open access: yes, 2010
Certain gas sensors, particularly those based on optical spectroscopy, have enabled the detection of individual gas species such as methane with low cross-sensitivity to other gases.
Hodgkinson, Jane   +3 more
core   +1 more source

Choroid Plexus Enlargement and USPIO‐Based Inflammatory Feature in Cerebral Small Vessel Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The choroid plexus (CP) is a key component of the blood–cerebrospinal fluid barrier (BCSFB), but its mechanism of action in cerebral small vessel disease (CSVD) remains unclear. This study investigated CP volume (CPV) alterations and their association with conventional imaging markers in CSVD and explored the underlying role of ...
Yongqiang Qu   +11 more
wiley   +1 more source

The CMBR spectrum [PDF]

open access: yes, 1997
Here we give an introduction to the observed spectrum of the Cosmic Microwave Background Radiation (CMBR) and discuss what can be learned about it. Particular attention will be given to how Compton scattering can distort the spectrum of the CMBR.
Stebbins, A.
core  

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