Search results for "engineering"
showing 10 items of 44231 documents
VEggInInteractions protéines végétales –protéines de blanc d’œuf pour le développement d’ingrédients fonctionnalisés
2022
compréhension des interactions entre protéines végétales et protéines de blanc d’œuf pour permettre l’amélioration de la « techno-fonctionnalité » des mélanges, notamment pour la stabilisation des mousses et émulsions, l’optimisation de ces fonctionnalités et l’identification des conditions permettant de limiter leur sensibilité aux traitements thermiques.
Ādminība: Kr. Barona tautas augstskolas arodu kursos lasīto lekciju konspekts
1936
О теоріяхъ крашенія волокнистыхъ веществъ [О теориях крашения волокнистых веществ]. Часть1
1903
Бѣленіе и крашеніе хлопчатобумажныхъ, шерстяныхъ и шелковыхъ издѣлій [Беление и крашение хлопчатобумажных, шерстяных и шелковых изделий]
1904
Photoluminescence properties of S2 molecule trapped in Melanophlogite
2015
We studied the photoluminescence properties of a sample of SiO2-clathrate Melanophlogite, a crystalline microporous material which is found in nature as a rare mineral. Upon β irradiation, the material displays an intense light emission under near-UV illumination. We studied in detail this optical activity by steady-state and time-resolved photoluminescence measurements as a function of temperature. The spectroscopic properties we find can be ascribed to a population of quasi-free molecules trapped within each of the two different types of cage available in the structure of this clathrate, although the spectroscopic properties of the guest molecules are affected by their interactions with t…
Ground and first excited electronic state interaction of FAD with some β-carboline derivatives
1987
Abstract The spectrophotometric and thermodynamic properties of molecular complexes of flavine adenine dinucleotide (FAD) with some dihydro β-carboline derivatives have been investigated in aqueous solution. The molecular associations have been examined by means of electronic absorption spectra, since in each a new charge-transfer band has been located, and also the variation of the fluorescence emission of FAD on the solutions has been observed. The formation constants for the molecular complexes were determined from absorption data, using the Foster-Hammick-Wardley method. The quenching fluorescence phenomena observed in FAD is related to the concentration of the dihydro β-carboline deriv…
Stable carbon and oxygen isotope fractionation in bivalve (Placopecten magellanicus) larval aragonite
2008
Abstract The relationship between stable isotope composition (δ13C and δ18O) in seawater and in larval shell aragonite of the sea scallop, Placopecten magellanicus, was investigated in a controlled experiment to determine whether isotopes in larval shell aragonite can be used as a reliable proxy for environmental conditions. The linear relationship between δ13CDIC and δ13Caragonite (r2 = 0.97, p δ 13 C DIC = 1.15 ( ± 0.05 ) ∗ δ 13 C aragonite - 0.85 ( ± 0.04 ) The relationship between δ13CDIC and δ13Caragonite described for P. magellanicus resulted in larval shell aragonite that was depleted on average by 1.82‰ (SD = 0.22‰, range = 1.1–2.1‰) from predicted equilibrium values based on the r…
Variation in Sr uptake in the shell of the freshwater gastropod Bithynia tentaculata from Lake Arreo (northern Spain) and culture experiments
2010
The Sr uptake features in Bithynia tentaculata aragonite shells from monthly collections in Lake Arreo (northern Spain) over a two-year period are compared with those from the same species grown in culture experiments with similar waters under controlled temperature. The shell aragonite of B. tentaculata from Lake Arreo formed in isotopic equilibrium with the lake water. A comparison of the stable oxygen isotope values (δ18O) from the shells and waters allowed the selection of suitable shells for Sr uptake studies. The Sr/Ca molar ratio in B. tentaculata shells (Sr/Cashell) from the lake and from the culture experiments positively correlate with some chemical parameters like conductivity an…
Что сдѣлано и что дѣлается нашимъ городскимъ управленіем?
1913
Краткая историческая справка развития и переустройства Рижского железнодорожного узла к открытию Александровского Путепровода в городе Риги
1905
Nosaukums uz vāka: Къ открытію Александровскаго путепровода въ гор. Ригѣ, 1904-1905.