Results 21 to 30 of about 359,557 (360)

Olfactory Characterization of Typical Odorous Pollutants Part I: Relationship Between the Hedonic Tone and Odor Concentration

open access: yesAtmosphere, 2019
The hedonic tone is a suitable evaluation index which can truly reflect the psychological impact of an odor. To find out the relationship between the odor concentration (OC) and hedonic tone (H), dimethyl disulfide, limonene and butyl acetate were ...
Jiayin Li   +4 more
doaj   +1 more source

Critical behavior in reaction-diffusion systems exhibiting absorbing phase transition [PDF]

open access: yes, 2003
Phase transitions of reaction-diffusion systems with site occupation restriction and with particle creation that requires n>1 parents and where explicit diffusion of single particles (A) exists are reviewed.
Odor, Geza
core   +4 more sources

Molecularly Imprinted Sol-Gel-Based QCM Sensor Arrays for the Detection and Recognition of Volatile Aldehydes

open access: yesSensors, 2017
The detection and recognition of metabolically derived aldehydes, which have been identified as important products of oxidative stress and biomarkers of cancers; are considered as an effective approach for early cancer detection as well as health status ...
Chuanjun Liu   +4 more
doaj   +1 more source

Language of smell: Tracing some cross-cultural insights from past and present

open access: yesFrontiers in Food Science and Technology, 2023
It is assumed that the human sense of smell is inferior to vision. This framework of underdeveloped human olfaction can be mainly attributed previously to its historical demotion of it by the Western, quasi-scientific ideas, and evolutionary narratives ...
Chetan Sharma
doaj   +1 more source

Influence Factors and Mechanism Study on Bag Sampling Method for Determination of Reduced Sulfide Compound by Gas Chromatography-Mass Spectrometry

open access: yesYankuang ceshi, 2019
BACKGROUND Reduced sulfide compound is a typical odorant characterized by high activity and is difficult to store. Therefore, suitable storage conditions are of great significance for the accurate determination of reduced sulfides.
MENG Jie   +4 more
doaj   +1 more source

Bilateral and unilateral odor processing and odor perception [PDF]

open access: yesCommunications Biology, 2020
AbstractImagine smelling a novel perfume with only one nostril and then smelling it again with the other nostril. Clearly, you can tell that it is the same perfume both times. This simple experiment demonstrates that odor information is shared across both hemispheres to enable perceptual unity.
Tal Dalal, Nitin Gupta, Rafi Haddad
openaire   +3 more sources

Towards an Electronic Dog Nose: Surface Plasmon Resonance Immunosensor for Security and Safety

open access: yesSensors, 2014
This review describes an “electronic dog nose” based on a surface plasmon resonance (SPR) sensor and an antigen–antibody interaction for security and safety.
Takeshi Onodera, Kiyoshi Toko
doaj   +1 more source

Contribuição para o aprimoramento de projeto, construção e operação de reatores UASB aplicados ao tratamento de esgoto sanitário – Parte 1: Tópicos de Interesse [PDF]

open access: yesRevista DAE, 2018
O Brasil detém o maior parque de reatores anaeróbios do mundo, considerando-se a aplicação da tecnologia para o tratamento de esgoto sanitário. Apesar das reconhecidas vantagens dos reatores do tipo UASB, há problemas que têm impedido seu máximo ...
Carlos Augusto de Lemos Chernicharo   +5 more
doaj   +1 more source

Odorous and pungent attributes of mixed and unmixed odorants [PDF]

open access: yesPerception & Psychophysics, 1990
In order to explore functional properties of the olfactory and common chemical senses as well as their relation to the total nasal sensation experienced, various concentrations of two pungent odorants were presented alone and in the presence of different backgrounds of the other irritant. Stimuli comprised formaldehyde (at 1.0, 3.5, 6.9, and 16.7 ppm),
Susana M. Hernández   +2 more
openaire   +5 more sources

Contribuição para o aprimoramento de projeto, construção e operação de reatores UASB aplicados ao tratamento de esgoto sanitário – Parte 2: Tratamento preliminar, bombeamento e distribuição de vazão [PDF]

open access: yesRevista DAE, 2018
A etapa de tratamento preliminar é fundamental para o adequado condicionamento do esgoto antes de sua entrada nos reatores UASB. Nesta Nota Técnica objetiva-se discorrer sobre os principais problemas, suas respectivas origens e os possíveis ...
Thiago Bressani Ribeiro   +4 more
doaj   +1 more source

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