physics the former name for reflection density, transmission density
reflection density in British English
noun
physics
a measure of the extent to which a surface reflects light or other electromagnetic radiation, equal to the logarithm to base ten of the reciprocal of the reflectance
Symbol: D. Former name: optical density
transmission density in British English
noun
physics
a measure of the extent to which a substance transmits light or other electromagnetic radiation, equal to the logarithm to base ten of thereciprocal of the transmittance
Symbol: τ. Former name: optical density
Examples of 'optical density' in a sentence
optical density
Optical density was recorded each 12 h during 192h.
Pedro Fernandez, Hernán Laurentin 2016, 'Sesame (Sesamum indicum L.) ethanolic extracts effect on Fusarium oxysporum f. sp.sesami', Acta Agronómicahttps://revistas.unal.edu.co/index.php/acta_agronomica/article/view/48384. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Parameters evaluated were labeling index and optical density.
Sebastião Gonzaga Barbosa-Neto, Ronaldo Mafia Cuenca, Jurandir Marcondes Ribas-Filho,Osvaldo Malafaia, Danielle Duck Schultz, Paulo Afonso Nunes Nassif, Eduardo Batistella,Letícia Elizabeth Augustin Czeczko 2007, 'Valor preditivo da expressão dos anticorpos Antifator VIII no carcinoma epidermóidedo esôfago Predictive value of antifactor VIII antibody expression in squamous cellcarcinoma of the esophagus', ABCD: Arquivos Brasileiros de Cirurgia Digestivahttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-67202007000400009. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Mean optical density measurement (λ=450 nm) was 0.143±0.9.
A.O. Pellegrin, K.L. Miranda, J.F. Figueiredo, E.F. Barbosa, A.P. Lage 2011, 'The use of enzyme-linked immunosorbent assay and immunoblotting for the detectionof Campylobacter fetus immunoglobulins in the cervico-vaginal mucus of female cattle',Pesquisa Veterinária Brasileirahttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-736X2011000300011&lng=en&tlng=en. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Ferric-reducing antioxidant power showed optical density at about 0.5.
DANIEL B. ALENCAR, ARTHUR A. MELO, GISELLE C. SILVA, REBECA L. LIMA, KELMA M.S. PIRES-CAVALCANTE,RÔMULO F. CARNEIRO, ADRIANA S. RABELO, OSCARINA V. SOUSA, REGINE H.S.F. VIEIRA, FRANCISCOA. VIANA, ALEXANDRE H. SAMPAIO, SILVANA SAKER-SAMPAIO 2015, 'Antioxidant, hemolytic, antimicrobial, and cytotoxic activities of the tropical Atlanticmarine zoanthid Palythoa caribaeorum', Anais da Academia Brasileira de Ciênciashttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000201113&lng=en&tlng=en. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Cell's growth was monitored by optical density at 595 nm.
Ana Maria RODRIGUES, Ernani S. SANT'ANNA 2001, 'Efeito do cloreto de sódio na produção de proteínas (Saccharomyces cerevisiae) emfermentação semi-sólida Effect of sodium chloride on protein production (Saccharomycescerevisae) by semi-solid fermentation', Food Science and Technologyhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612001000100013. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Turbidity measurements showed that only small differences in optical density appeared.
Georgia Batra, Olga Gortzi, Stavros I. Lalas, Anna Galidi, Angeliki Alibade, GeorgeD. Nanos 2017, 'Enhanced Antioxidant Activity of Capsicum annuum L. and Moringa oleifera L. Extractsafter Encapsulation in Microemulsions', ChemEngineeringhttps://www.mdpi.com/2305-7084/1/2/15. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
However, neither cell concentration nor optical density correlates well to biomass when growth conditions vary.
Maurizio Chioccioli, Ben Hankamer, Ian L Ross 2014, 'Flow cytometry pulse width data enables rapid and sensitive estimation of biomassdry weight in the microalgae Chlamydomonas reinhardtii and Chlorella vulgaris.', PLoS ONEhttp://europepmc.org/articles/PMC4022489?pdf=render. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Optical density results for positive samples ranged between 0.217 and 2.683.
Lavinia Ciucă, Vincenzo Musella, Liviu D. Miron, Maria Paola Maurelli, Giuseppe Cringoli,Antonio Bosco, Laura Rinaldi 2016, 'Geographic distribution of canine heartworm (Dirofilaria immitis) infection in straydogs of eastern Romania', Geospatial Healthhttp://www.geospatialhealth.net/index.php/gh/article/view/499. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Growth curves were obtained with respect to optical density and dry biomass weight.
Maryam Yari, Jamshid Fooladi, Mohammad Ali Kargar Motlagh 2015, 'Microencapsulation and Fermentation of Lactobacillus acidophilus LA-5 and BifidobacteriumBB-12', Applied Food Biotechnologyhttp://journals.sbmu.ac.ir/afb/article/view/7711. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The optical density of each region was obtained using a solid state digital analyser.
Scorza Fulvio Alexandre, Arida Ricardo Mario, Priel Margareth Rose, Calderazzo Lineu,Cavalheiro Esper Abrão 2002, 'Glucose utilisation during status epilepticus in an epilepsy model induced by pilocarpine:a qualitative study', Arquivos de Neuro-Psiquiatriahttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2002000200003. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)