Results 31 to 40 of about 7,792 (161)

Evaluation of Abatement Technologies for Pig Houses by Dynamic Olfactometry and On-site Mass Spectrometry

open access: yesChemical Engineering Transactions, 2014
The aim of the present study was to evaluate the effect of abatement technologies for pig houses on odour based on 1) on-site measurements of dynamic olfactometry and chemical odorants and 2) dynamic olfactometry with storage of air samples in sampling ...
M. Hansen, K. Jonassen, A. Feilberg
doaj   +1 more source

Complex Approach to Diagnosis of Nasal Cavity and Nasopharyngeal Pathologies in Children. Initial Results

open access: yesПедиатрическая фармакология, 2022
Background. Nasal cavity and nasopharyngeal pathology are crucial and common issue in pediatric otorhinolaryngology. One of the major reasons for the nasal breathing difficulties are adenoids, allergic rhinitis, acute rhinitis, rhinosinusitis, nasal ...
Leyla S. Namazova-Baranova   +5 more
doaj   +1 more source

BIOTECHNICAL SYSTEM FOR INTEGRATED OLFACTOMETRY DIAGNOSTICS

open access: yesСучасний стан наукових досліджень та технологій в промисловості, 2017
The subject matter of the article is the process of olfactometric research of a human olfactory function. The object of the study is a biotechnical system which includes a method for increasing the objectivity of olfactometric diagnostics. The goal is to
Yana Nosova   +2 more
doaj   +1 more source

Effect of Biochar Diet Supplementation on Chicken Broilers Performance, NH3 and Odor Emissions and Meat Consumer Acceptance

open access: yesAnimals, 2020
The aim of this research was to evaluate the effect of biochar diet supplementation for broiler chickens on (1) ammonia and odor emissions from manure, (2) feed conversion ratio and daily weight gain, and (3) selected meat quality and sensory parameters.
Kajetan Kalus   +4 more
doaj   +1 more source

Non-Randomized Comparative Study of Olfaction in post-COVID-19 Children. Intermediary Results

open access: yesПедиатрическая фармакология, 2021
The aim of the study is to estimate olfaction in post-COVID-19 children.Research methods. The study included 81 children, they were divided into two groups: those who had COVID-19 and those who had not.Survey procedures.
Leyla S. Namazova-Baranova   +20 more
doaj   +1 more source

Characterization and Quantification of Livestock Odorants using Sorbent Tube Sampling and Thermal Desorption coupled with Multidimensional Gas Chromatography–Mass Spectrometry–Olfactometry (TD-MDGC-MS-O) [PDF]

open access: yes, 2008
Characterization and quantification of livestock odorants is one of the most challenging analytical tasks because odor-causing gases are very reactive, polar and often present at very low concentrations in a complex matrix of less important or irrelevant
Anderson-Bereznicki, Sarah   +15 more
core   +3 more sources

Odor Characteristics and Concentration of Malodorous Chemical Compounds Emitted from a Combined Sewer System in Korea

open access: yesAtmosphere, 2020
(1) Objectives: This study was carried out to investigate the characteristics of odors emitted from a combined sewer for the abatement of combined sewer odor.
Sangjin Park
doaj   +1 more source

Odor and Odorous Chemical Emissions from Animal Buildings: Part 5—Correlations between Odor Intensities and Chemical Concentrations (gc-ms/o) [PDF]

open access: yes, 2010
Simultaneous chemical and sensory analysis based on gas chromatography-mass spectrometry-olfactometry (GC-MS-O) of air samples from livestock operations is a very useful approach for quantification of target odorous gases and also for ranking of odorous ...
Akdeniz, Neslihan   +13 more
core   +3 more sources

Analytical Methods for Chemical and Sensory Characterization of Scent-Markings in Large Wild Mammals: A Review

open access: yesSensors, 2014
In conjoining the disciplines of “ethology” and “chemistry” the field of “Ethochemistry” has been instituted. Ethochemistry is an effective tool in conservation efforts of endangered species and the understanding of behavioral patterns across all species.
Simone B. Soso   +4 more
doaj   +1 more source

The utilization of biochemically modified microfibers from grain by-products as reinforcement for polypropylene biocomposite

open access: yeseXPRESS Polymer Letters, 2014
The presented research study aims to evaluate microfibers from grain by-products as a substitute for wood flour in wood-thermoplastic composites. Grain husks are an abundant and cheap source of annual, renewable raw material, which besides lignocellulose,
A. K. Bledzki, P. Franciszczak, A. Mamun
doaj   +1 more source

Home - About - Disclaimer - Privacy