Results 91 to 100 of about 8,462 (221)

Highly Informative Fingerprinting of Extra-Virgin Olive Oil Volatiles: The Role of High Concentration-Capacity Sampling in Combination with Comprehensive Two-Dimensional Gas Chromatography

open access: yesSeparations, 2019
The study explores the complex volatile fraction of extra-virgin olive oil by combining high concentration-capacity headspace approaches with comprehensive two-dimensional gas chromatography, which is coupled with time of flight mass spectrometry.
Federico Stilo   +4 more
doaj   +1 more source

Female-induced increase of host-plant volatiles enhance specific attraction of aphid male Dysaphis plantaginea (Homoptera: Aphididae) to the sex pheromone [PDF]

open access: yes, 2009
All aphid species studied so far share the same sex pheromone components, nepetalactol and nepetalactone. Variation by different enantiomers and blends of the two components released by different aphid species are limited and can only partially explain ...
Griepink, F.C.   +3 more
core   +2 more sources

Distribution of Electrical Resistivity in Single Carbon Fiber Filaments and Its Correlation With Tensile Modulus

open access: yesAdvanced Engineering Materials, Volume 28, Issue 6, 18 March 2026.
A statistical framework is applied to quantify the distribution of electrical resistivity among individual filaments of two commercially available carbon fiber types. Correlations between filament resistivity, tensile modulus, and diameter are examined and complemented by TEM analysis to provide new insight into filament‐level variability relevant for ...
Nils Wieja   +9 more
wiley   +1 more source

VOCs Measurements in Residential Buildings: Quantification via Thermal Desorption and Assessment of Indoor Concentrations in a Case-Study

open access: yesAtmosphere, 2019
Volatile organic compounds (VOCs) represent one of the most important categories of pollutants, influencing the air quality and human health and well-being in indoor environments.
Sabrina Rovelli   +7 more
doaj   +1 more source

Prediction and validation of diffusive uptake rates for indoor volatile organic compounds in axial passive samplers

open access: yesEnergy and Built Environment
The diffusive uptake rate is essential for using passive samplers to measure indoor volatile organic compounds (VOCs). The traditional theoretical model of passive samplers requires available regression formulas of uptake rates and physicochemical ...
Yan Wang, Tao Yu, Jinhan Mo
doaj   +1 more source

Genetic identity and differential gene expression between and [PDF]

open access: yes, 2009
Background Trichomonas vaginalis is a human urogenital pathogen responsible for trichomonosis, the number-one, non-viral sexually transmitted disease (STD) worldwide, while T.
Ashwini S Kucknoor   +2 more
core   +2 more sources

The stability of Tenax TA thermal desorption tubes in simulated field conditions on the HAPSITE®ER

open access: yesInternational Journal of Environmental Analytical Chemistry, 2015
Due to the growing need to monitor aircraft cabin, cockpit and breathing-line air quality, functional assessment of sampling equipment for the specialised field conditions of flight need to be established for both in-flight and ground safety. In this article, we assess the reliability of Tenax TA thermal desorption tubes to perform under various ...
Sean W. Harshman   +7 more
openaire   +2 more sources

Developing a Method for the Collection and Analysis of Burnt Remains for the Detection and Identification of Ignitable Liquid Residues Using Body Bags, Dynamic Headspace Sampling, and TD-GC×GC-TOFMS

open access: yesSeparations, 2018
In cases of suspected arson, a body may be intentionally burnt to cause loss of life, dispose of remains, or conceal identification. A primary focus of a fire investigation, particularly involving human remains, is to establish the cause of the fire ...
Katie D. Nizio, Shari L. Forbes
doaj   +1 more source

Mikroorganismen an Aesculus hippocastanum – olfaktorische Perspektive von Cameraria ohridella (Deschka & Dimic) [PDF]

open access: yes, 2008
Since the 80s, the popular park- and city tree Aesculus hippocastanum has been infested with the leaf miner Cameraria ohridella (DESCHKA & DIMIC 1986). Additionally, the pathogenic fungi Guignardia aesculi causes leaf blotch disease and Erysiphe flexuosa
Johne, A. Bettina   +2 more
core  

Development of on-line FTIR spectroscopy for siloxane detection in biogas to enhance carbon contactor management [PDF]

open access: yes, 2015
Activated carbon filters are used to limit engine damage by siloxanes when biogas is utilised to provide electricity. However, carbon filter siloxane removal performance is poorly understood as until recently, it had not been possible to measure ...
Brown, A. S.   +4 more
core   +1 more source

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