Results 131 to 140 of about 456,086 (291)

The Near-IR-Optical-UV Emission of BL Lacertae Objects

, 1994
Near--infrared, optical and ultraviolet quasi--simultaneous observations of 11 BL Lacertae objects are reported. For all but one source the dereddened spectral flux distribution in the $8\cdot10^{13}-2\cdot10^{15}$ Hz frequency range can be described by ...
Falomo, R., Pian, E., Scarpa, R., Treves, A.   +3 more
core   +2 more sources

Laser Irradiation of Carbonaceous Chondrite Simulants: Space Weathering Implications for C-complex Asteroids [PDF]

arXiv
Surfaces of carbonaceous asteroids (C-complex) have shown diverse contrasting spectral variations, which may be related to space weathering. We performed laser irradiation experiments on CI and CM simulant material under vacuum to mimic the spectral alteration induced by micrometeorite impacts.
arxiv  

Quantitative characterization of procedures using ultraviolet and visible molecular absorption spectrophotometry [PDF]

, 1986
L. Sommer, Gerhard Ackermann
openalex   +1 more source

Correction for Cherry and Bennett, Egg colour matching in an African cuckoo, as revealed by ultraviolet-visible reflectance spectrophotometry [PDF]

, 2001
M. I. Cherry, Andrew T. D. Bennett
openalex   +1 more source

UTILIZAÇÃO DO ESPECTRÔMETRO DE ABSORÇÃO ATÔMICA PARA DETERMINAÇÃO DE CLORIDRATO DE METFORMINA E CLORIDRATO DE RANITIDINA EM MEDICAMENTOS

Química Nova
The utilization of atomic absorption spectrometer for metformin (MET) and ranitidine (RAN) chlorohydrates determination in medicines is proposed. The spectral lines of nickel and aluminum at 232.0 and 308.2 nm were selected for MET and RAN absorbance ...
Mariana Barbosa André de Souza, Klaiani Bez Fontana, Caroline Gonçalves, Eduardo Sidinei Chaves   +3 more
doaj   +1 more source

Study of degradation of polystyrene, using ultraviolet spectrophotometry

, 1953
M.J. Reiney, Max Tryon, B Achhammer
openalex   +1 more source

Ultraviolet Spectrophotometry of Variable Early‐Type Be and B Stars Derived from High‐ResolutionIUEData [PDF]

, 2001
M. A. Smith
openalex   +1 more source

Expression and contribution of microphthalmia-associated transcription factor to the melanin deposition in Liancheng white ducks

Journal of Integrative Agriculture, 2020
The present study investigates the expression of microphthalmia-associated transcription factor (MITF) and its contribution to the melanin deposition in Liancheng white ducks.
Qing-wu XIN, Zhong-wei MIAO, Zhao-yuan LIU, Li LI, Lin-li ZHANG, Zhi-ming ZHU, Zheng-hong ZHANG, Nen-zhu ZHENG, Zheng-chao WANG   +8 more
doaj  

Chemometric Calculation for Determination of Betamethasone and Neomycin Mixture in Cream Supply by Ultraviolet Spectrophotometry. [PDF]

Open Access Maced J Med Sci, 2019
Bachri M, Reveny J, Permata YM, Panjaitan DN.   +3 more
europepmc   +1 more source

Spectrophotometric Determination of Hydroxycinnamic Acids in Herbal Drugs. Part 2. Determination of Hydroxycinnamic Acids in the Presence of Polyphenolic Compounds (Review)

Регуляторные исследования и экспертиза лекарственных средств
INTRODUCTION. Polyphenolic compounds of various classes have pronounced absorption bands overlapping in almost the same ultraviolet region. This superposition of bands complicates the quantification of total hydroxycinnamic acids in herbal drugs by ...
E. V. Kompantseva, A. S. Saushkina, A. Yu. Ayrapetova   +2 more
doaj   +1 more source