Results 31 to 40 of about 130,494 (270)
Sky Subtraction for LAMOST [PDF]
, 2017 Sky subtraction is the key technique in data reduction of multi-fiber spectra. Knowledge of the related instrument character is necessary to determine the method adopted in sky subtraction. In this study, we described the sky subtraction method designed for LAMOST(Large sky Area Multi-Object fiber Spectroscopic Telescope) survey.
arxiv +1 more source
Biosensors to Monitor Water Quality Utilizing Insect Odorant-Binding Proteins as Detector Elements
Biosensors, 2019 In the developing world, the identification of clean, potable water continues to pose a pervasive challenge, and waterborne diseases due to fecal contamination of water supplies significantly threaten public health.
Spiros D. Dimitratos +5 more
doaj +1 more source
A novel ensemble estimation of distribution algorithm with distribution modification strategies
Complex & Intelligent Systems, 2023 The canonical estimation of distribution algorithm (EDA) easily falls into a local optimum with an ill-shaped population distribution, which leads to weak convergence performance and less stability when solving global optimization problems.
Xiaofei Wang +4 more
doaj +1 more source
An Ultra-long Wavelength Sky Model with Absorption Effect [PDF]
, 2021 The radio sky at frequencies below $\sim10$ MHz is still largely unknown, this remains the last unexplored part of the electromagnetic spectrum in astronomy. The upcoming space experiments aiming at such low frequencies (ultra-long wavelength or ultra-low frequency) would benefit from reasonable expectations of the sky brightness distribution at ...
arxiv +1 more source
Towards a Phenomenology of Shakespeare’s Sky
Linguaculture, 2023 This paper begins with a phenomenological analysis of the sky as understood by early modern beholders via its synonyms: ‘sky’, ‘welkin’, ‘element’, ‘vault’, ‘heavens’, and ‘firmament’.
John Gillies
doaj
Measuring Night-Sky Brightness with a Wide-Field CCD Camera [PDF]
Publ.Astron.Soc.Pac. 119 (2007) 192-213, 2007 We describe a system for rapidly measuring the brightness of the night sky using a mosaic of CCD images obtained with a low-cost automated system. The portable system produces millions of independent photometric measurements covering the entire sky, enabling the detailed characterization of natural sky conditions and light domes produced by cities. The
arxiv +1 more source
Вопросы вирусологии, 2016 In the study of the immunostimulation preparation Stimforte activity using the model of the experimental herpes virus infection BALB/c, mice has shown that sera from mice treated with the drug on the 4th and 7th day after infection possessed a 3 times ...
D. G. Maldov +4 more
doaj +1 more source
Cultural Science, 2020 University teaching, particularly teaching with and about digital technologies, can play a role in developing and expanding open literacies. At the same time, we face a range of challenges as teachers.
Croeser Sky
doaj +1 more source
Measurement of CT radiation beam width with a pencil ionization chamber and radiopaque mask
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose This study compares fan beam CT scanner radiation beam widths measured with a pencil ionization chamber‐radiopaque mask technique with commonly used film and computed radiography (CR) measurements. Methods For a given fan beam CT scanner x‐ray beam, the ionization chamber‐mask technique determines the radiation beam width by exposing a
Rani Al‐Senan +2 more
wiley +1 more source
Flat parameter-space metric for all-sky searches for gravitational-wave pulsars [PDF]
Phys. Rev. D 88, 123005 (2013), 2013 All-sky, broadband, coherent searches for gravitational-wave pulsars are computationally limited. It is therefore important to make efficient use of available computational resources, notably by minimizing the number of templates used to cover the signal parameter space of sky position and frequency evolution.
arxiv +1 more source