Results 51 to 60 of about 2,703,176 (382)

The structure of fluids with impurities

open access: yes, 2012
The influence of dilute impurities on the structure of a fluid solvent is investigated theoretically. General arguments, which do not rely on particular models, are used to derive an extension of the Ornstein-Zernike form for the solvent structure factor
Bier, M., Harnau, L.
core   +1 more source

Modeling the absorption spectrum of the permanganate ion in vacuum and in aqueous solution [PDF]

open access: yes, 2017
The absorption spectrum of the MnO$_{4}$$^{-}$ ion has been a test-bed for quantum-chemical methods over the last decades. Its correct description requires highly-correlated multiconfigurational methods, which are incompatible with the inclusion of ...
Hedegård, Erik Donovan   +1 more
core   +2 more sources

Effects of chronic browsing on life‐history traits of an irruptive large herbivore population

open access: yesPopulation Ecology, EarlyView.
This study aimed to determine the relationship between diet quality, body mass, and size (hind foot length), and female reproduction and sought to identify the mechanism by which high density under severe food limitations is maintained. Our results demonstrated that sika deer introduced to Nakanoshima Island have maintained high densities through high ...
Koichi Kaji   +9 more
wiley   +1 more source

Polyphenols Recovery from Tropical Fruits (Pink Guava) Wastes via Ultra-Filtration Membrane Technology Application by Optimum Solvent Selection [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2016
Wastes generated from the processing of some fruits still contain large amounts of chemical components such as polyphenols, which are deemed as very effective antioxidants.This study involves the characterization of wastes generation by pink guava ...
Lilis Sukeksi   +4 more
doaj  

Effect of Solvent on the Optimal Thermodynamic Conditions of Ternary System (CO2, Alcohol, Ampicillin) in GAS Process [PDF]

open access: yesIranian Journal of Chemical Engineering, 2020
The gas antisolvent (GAS) process has been employed for pharmaceutical micronization. Ampicillin was dissolved in organic solvent and carbon dioxide as an antisolvent was injected into this solution, consequently, volume expansion and sharp reduction in ...
M. Rahmanzadeh derisi, N. Esfandiari
doaj   +1 more source

Combining transient dynamics and logistic‐asymptotic growth to study the recovery of two seabird populations after rat eradication

open access: yesPopulation Ecology, EarlyView.
This study examines the demographic dynamics of two seabird populations on Tromelin Island, 15 years after the eradication of brown rats. The results indicate that these populations are in good health and are expected to continue growing until breeding sites are saturated in about a century.
Merlène Saunier   +6 more
wiley   +1 more source

Critical Casimir forces and colloidal aggregation: A numerical study

open access: yes, 2012
We present a numerical study of the effective potential $V_\mathrm{eff}$ between two hard-sphere colloids dispersed in a solvent of interacting particles, for several values of temperature and solvent density, approaching the solvent gas-liquid critical ...
Asakura   +40 more
core   +1 more source

Solubility behaviour, crystallisation kinetics and pour point : a comparison of linear alkane and triacyl glyceride solute/solvent mixtures [PDF]

open access: yes, 2015
Mixtures of either a hydrocarbon wax in a hydrocarbon solvent or a long chain triacyl glyceride (TAG) in a TAG solvent show complex solubility boundary temperature hysteresis and precipitated crystal network formation leading to gelation.
Fletcher, Paul D I   +3 more
core   +1 more source

Effect of solvent polarity on extraction yield and antioxidant properties of phytochemicals from bean (Phaseolus vulgaris) seeds

open access: yes, 2020
The effect of solvent polarity on extraction yield and antioxidant properties of phytochemical compounds in bean seeds was studied. Seed flour of three varieties of bean was extracted in a series of organic solvents with increasing polarity (n-hexane ...
H. Nawaz   +4 more
semanticscholar   +1 more source

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

open access: yesPopulation Ecology, EarlyView.
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley   +1 more source

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