Relevant bibliographies by topics / Odor concentration

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Odor concentration'

Author: Grafiati
Published: 4 June 2021
Last updated: 20 June 2025

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Journal articles on the topic "Odor concentration"

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Rosenfeld, P. E., and I. H. Suffet. "Understanding odorants associated with compost, biomass facilities, and the land application of biosolids." Water Science and Technology 49, no. 9 (2004): 193–99. http://dx.doi.org/10.2166/wst.2004.0569.

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Odorous water and air can result from compost, biomass facilities and land application of biosolids. Common odorous compounds from these biodegradation systems include alcohols, aldehydes, fatty acids, solvents and various sulfur and nitrogen compounds. Each odorant possesses a unique individual odor signature i.e. odor character or quality, odor threshold concentration and chemical concentration. This paper develops an initial understanding of how the volatile odorous chemicals and their relative concentrations produced are related to the total odor quality from the process by their odor thre
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Marachlian, Emiliano, Ramón Huerta, and Fernando F. Locatelli. "Gain modulation and odor concentration invariance in early olfactory networks." PLOS Computational Biology 19, no. 6 (2023): e1011176. http://dx.doi.org/10.1371/journal.pcbi.1011176.

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The broad receptive field of the olfactory receptors constitutes the basis of a combinatorial code that allows animals to detect and discriminate many more odorants than the actual number of receptor types that they express. One drawback is that high odor concentrations recruit lower affinity receptors which can lead to the perception of qualitatively different odors. Here we addressed the contribution that signal-processing in the antennal lobe makes to reduce concentration dependence in odor representation. By means of calcium imaging and pharmacological approach we describe the contribution
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Hou, Hui-Rang, Rui-Xue Han, Xiao-Nei Zhang, and Qing-Hao Meng. "Pleasantness Recognition Induced by Different Odor Concentrations Using Olfactory Electroencephalogram Signals." Sensors 22, no. 22 (2022): 8808. http://dx.doi.org/10.3390/s22228808.

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Olfactory-induced emotion plays an important role in communication, decision-making, multimedia, and disorder treatment. Using electroencephalogram (EEG) technology, this paper focuses on (1) exploring the possibility of recognizing pleasantness induced by different concentrations of odors, (2) finding the EEG rhythm wave that is most suitable for the recognition of different odor concentrations, (3) analyzing recognition accuracies with concentration changes, and (4) selecting a suitable classifier for this classification task. To explore these issues, first, emotions induced by five differen
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Wellis, D. P., J. W. Scott, and T. A. Harrison. "Discrimination among odorants by single neurons of the rat olfactory bulb." Journal of Neurophysiology 61, no. 6 (1989): 1161–77. http://dx.doi.org/10.1152/jn.1989.61.6.1161.

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1. Intracellular and extracellular recordings were made from rat olfactory bulb mitral and tufted cells during odor stimulation and during electrical stimulation of the olfactory nerve. Neurons were identified by horseradish peroxidase injections and/or antidromic activation. The presentation of multiple concentrations of at least one odorant in a cyclic artificial sniff paradigm, as reported previously (10), allowed the study of odor responses. This approach was extended to multiple odorants to compare their concentration-response profiles. This procedure avoids the problems of interpretation
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Cho, Hyeon-Jun, and Su-Chul Yoon. "Occurrence of Designated Odor Substances in Wastewater Treatment Plant and Industrial Estate." Journal of Korean Society of Environmental Engineers 46, no. 3 (2024): 73–80. http://dx.doi.org/10.4491/ksee.2024.46.3.73.

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Objectives : Odor emissions pose a challenge due to the diversity of odor-producing substances, their various sources, and the complex interactions between different compounds. Moreover, people's perception of odor intensity can vary based on their living environment and psychological state, making it difficult to effectively manage and develop mitigation measures for odors, in contrast to other air pollutants. To address this issue, this study focuses on two prominent sources of residential odors, namely wastewater treatment plant and industrial estate.Methods : Through on-site data collectio
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Park, Sangjin. "Odor Characteristics and Concentration of Malodorous Chemical Compounds Emitted from a Combined Sewer System in Korea." Atmosphere 11, no. 6 (2020): 667. http://dx.doi.org/10.3390/atmos11060667.

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(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. (2) Methods: The odor samples emitted from the combined sewer were collected at 14 sites, and the concentrations of 13 malodorous chemicals were determined by the instrumental analysis such as gas chromatography. To understand the sensory characteristic of the combined sewer odor, the on-site odor intensity (OOI) was evaluated by the direct sensory method using the human olfactory sensitivity of panelists with a normal sense of smell. Th
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McClintock, Timothy S., Qiang Wang, Tomoko Sengoku, William B. Titlow, and Patrick Breheny. "Mixture and Concentration Effects on Odorant Receptor Response Patterns In Vivo." Chemical Senses 45, no. 6 (2020): 429–38. http://dx.doi.org/10.1093/chemse/bjaa032.

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Abstract Natural odors are mixtures of volatile chemicals (odorants). Odors are encoded as responses of distinct subsets of the hundreds of odorant receptors and trace amine-associated receptors expressed monogenically by olfactory sensory neurons. This is an elegantly simple mechanism for differentially encoding odors but it is susceptible to complex dose–response relationships and interactions between odorants at receptors, which may help explain olfactory phenomena, such as mixture suppression, synthetic versus elemental odor processing, and poorly predictable perceptual outcomes of new odo
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Masuda, J., J. Fukuyama, M. Tonoike, and M. Yamaguchi. "Cryogenic trapping for determination of odor concentration." Water Science and Technology 50, no. 4 (2004): 121–24. http://dx.doi.org/10.2166/wst.2004.0238.

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The sensory testing method applied under Japanese law to measure odor concentration has a lower detection limit of 10 in the specified Odor Index. To measure odor below the limit, a condensing procedure using solid sorbents (Tenax-TA, Unicarbon B and Carbosieve SIII) has been developed and used in Japan. This procedure however cannot condense all odorous substances, and is specifically unsuited to hydrogen sulfide, methyl mercaptan, dimethyl sulfide, ammonia, and other typical odorous substances. In the present study, cryogenic trapping was tested to improve recovery rate. As water in sample a
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Stevens, Charles F. "A statistical property of fly odor responses is conserved across odors." Proceedings of the National Academy of Sciences 113, no. 24 (2016): 6737–42. http://dx.doi.org/10.1073/pnas.1606339113.

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I have reanalyzed the data presented by Hallem and Carlson [Hallem EA, Carlson JR (2006) Cell 125(1):143–160] and shown that the combinatorial odor code supplied by the fruit fly antenna is a very simple one in which nearly all odors produce, statistically, the same neuronal response; i.e., the probability distribution of sensory neuron firing rates across the population of odorant sensory neurons is an exponential for nearly all odors and odor mixtures, with the mean rate dependent on the odor concentration. Between odors, then, the response differs according to which sensory neurons are firi
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Lemon, W., and W. Getz. "Temporal resolution of general odor pulses by olfactory sensory neurons in American cockroaches." Journal of Experimental Biology 200, no. 12 (1997): 1809–19. http://dx.doi.org/10.1242/jeb.200.12.1809.

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Behavioral and physiological evidence indicates that insect pheromone sensory neurons are able to resolve pulses of pheromone concentration as they occur downwind from a point source, but the abilities of insect sensory neurons that are sensitive to general odors to respond to pulsatile stimuli are unknown. The temporal response characteristics of olfactory sensory neurons of female American cockroaches Periplaneta americana in response to general odors were measured using a series of short odor pulses (20­400 ms). Odor pulses were delivered to olfactory sensilla in a moving airstream
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Dissertations / Theses on the topic "Odor concentration"

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Rincon, Mejia Carlos Andrés. "Caractérisation des émissions gazeuses et des odeurs en compostage : étude de la corrélation entre la concentration d'odeur et la composition chimique des émissions." Thesis, Rennes 1, 2019. http://www.theses.fr/2019REN1S019/document.

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La valorisation des déchets par le compostage et la méthanisation est encouragée par les politiques de l'UE. Cependant, ces technologies de recyclage des déchets sont confrontées à un défi crucial en matière de libération et de contrôle des émissions de gaz odorants. En effet, la pollution par les odeurs est la principale cause d'opposition du public au traitement des déchets, ce qui a entraîné la fermeture et des poursuites en justice pour les unités de traitement des déchets. À l'heure actuelle, les inventaires des émissions d'odeurs et de produits chimiques pour appuyer les plans de gestion
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Ditzen, Mathias. "Odor concentration and identity coding in the antennal lobe of the honeybee Apis mellifera." [S.l. : s.n.], 2005. http://www.diss.fu-berlin.de/2005/211/index.html.

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DeGreeff, Lauryn E. "Development of a Dynamic Headspace Concentration Technique for the Non-Contact Sampling of Human Odor Samples and the Creation of Canine Training Aids." FIU Digital Commons, 2010. http://digitalcommons.fiu.edu/etd/291.

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Human scent and human remains detection canines are used to locate living or deceased humans under many circumstances. Human scent canines locate individual humans on the basis of their unique scent profile, while human remains detection canines locate the general scent of decomposing human remains. Scent evidence is often collected by law enforcement agencies using a Scent Transfer Unit, a dynamic headspace concentration device. The goals of this research were to evaluate the STU-100 for the collection of human scent samples, and to apply this method to the collection of living and deceased h
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Walsh, Dale Warner 1961. "PRELIMINARY EVALUATION OF THE ENVIRONMENTAL CONCENTRATION AND TOXICITY OF 4-PHENYLCYCLOHEXENE: AN EMISSION OF NEW CARPETING (ODOR, HEALTH, INDOOR)." Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/276881.

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Qu, Guoliang. "The measurement of odour concentration." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0014/NQ60016.pdf.

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Hotel, Olivier. "Algorithmes, méthodes et modèles pour l'application des capteurs à ondes acoustiques de surface à la reconnaissance de signatures de composés chimiques." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066565/document.

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Récemment, les systèmes multicapteurs ont trouvé de nombreuses applications dans des domaines tels que l’industrie agroalimentaire, l’environnement, la médecine et la défense. Parmi les technologies existantes, les capteurs à ondes acoustiques de surface sont l’une des plusprometteuses et fait l’objet de nombreuses recherches. Les travaux décrits dans ce manuscrit concernent le développement d’algorithmes permettant la reconnaissance de composés chimiques et l’estimation de leur concentration. Cette étude décrit une méthode permettant d’estimer les paramètres des phénomènes de transduction. L’
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Hotel, Olivier. "Algorithmes, méthodes et modèles pour l'application des capteurs à ondes acoustiques de surface à la reconnaissance de signatures de composés chimiques." Electronic Thesis or Diss., Paris 6, 2017. http://www.theses.fr/2017PA066565.

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Récemment, les systèmes multicapteurs ont trouvé de nombreuses applications dans des domaines tels que l’industrie agroalimentaire, l’environnement, la médecine et la défense. Parmi les technologies existantes, les capteurs à ondes acoustiques de surface sont l’une des plusprometteuses et fait l’objet de nombreuses recherches. Les travaux décrits dans ce manuscrit concernent le développement d’algorithmes permettant la reconnaissance de composés chimiques et l’estimation de leur concentration. Cette étude décrit une méthode permettant d’estimer les paramètres des phénomènes de transduction. L’
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CHEN, CHIEN-MING, and 陳建銘. "RELATIONSHIP BETWEEN CHEMICAL CONCENTRATION AND ODOR CONCENTRATION OF TRS." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/13684287098621077416.

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碩士<br>國立臺灣大學<br>環境工程學研究所<br>85<br>In recent years the number of complaints about disagreeable odors hasapproached the total of all other air pollution complaints received byauthorities. And the sulfur compounds are known to cause nuiance odorsin the air from various surfur recovery and sewerage treatment works. The research is tried to find the relationship between the chemical concentrations and odor concentrations of the reduced sulfur gases: hydrogen sulfide (H2S), methanethiol (CH3SH),
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Galeb, Abduljalil D. S. "Use of ion-exchange and direct osmotic concentration technologies for processing cantaloupe juice." Thesis, 1993. http://hdl.handle.net/1957/26050.

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Ditzen, Mathias [Verfasser]. "Odor concentration and identity coding in the antennal lobe of the honeybee Apis mellifera / vorgelegt von Mathias Ditzen." 2005. http://d-nb.info/976020041/34.

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Books on the topic "Odor concentration"

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Institution, British Standards. Air quality: Determination of odour concentration by dynamic olfactometry. British Standards Institution, 1999.

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Mann, Frido. Terezín, oder, Der Führer schenkt den Juden eine Stadt: Eine Parabel. Lit, 1994.

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Winfried, Wolf. Fusionsfieber, oder, Das grosse Fressen: Globalisierungsmythos, Nationalstaat, Wirtschaftsblöcke. PapyRossa, 2000.

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1959-, Müller Hanno, ed. Recht oder Rache?: Buchenwald 1945-1950 : Betroffene erinnern sich. Dipa-Verlag, 1991.

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Austria) Internationales Symposium "Frauen im KZ-Mauthausen (2006 Linz. Zwischen Mutterkreuz und Gaskammer: Täterinnen und Mitläuferinnen oder Widerstand und Verfolgung? : Beiträge zum Internationalen Symposium "Frauen im KZ-Mauthausen" am 4. Mai 2006. Mauthausen-Komitee Österreich, 2008.

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Ligocka, Roma. Die Handschrift meines Vaters: Verräter oder Held? : ein Jahr der Suche. Diana, 2005.

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Mantegazza, Raffaele. L' odore del fumo: Auschwitz e la pedagogia dell'annientamento. Città aperta, 2001.

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Finkelgruen, Peter. Haus Deutschland, oder, Die Geschichte eines ungesühnten Mordes. Rowohlt, 1992.

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Werner, Röhr, and Berlekamp Brigitte, eds. Tod oder Überleben?: Neue Forschungen zur Geschichte des Konzentrationslagers Ravensbrück. Edition Organon, 2001.

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Surminski, Arno. Winter Fünfundvierzig, oder, Die Frauen von Palmnicken: Roman der Zeitgeschichte. Ellert & Richter, 2010.

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Book chapters on the topic "Odor concentration"

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Omatu, S., and M. Yano. "Intelligent Electronic Nose System Independent on Odor Concentration." In Advances in Intelligent and Soft Computing. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-19934-9_1.

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Murlis, John. "Application of Fluctuating Concentration Models: Analysis of Response to Odour." In Air Pollution Modeling and Its Application IX. Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3052-7_71.

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Daqi, Gao, Sun Jianli, and Li Xiaoyan. "Parallel-Series Perceptrons for the Simultaneous Determination of Odor Classes and Concentrations." In Lecture Notes in Computer Science. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-74695-9_26.

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Seedorf, Jens. "Controlling the internal concentrations of gases and odor within and emissions from animal buildings." In Air Quality and Livestock Farming. CRC Press, 2018. http://dx.doi.org/10.1201/9781315738338-16.

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Hashimoto, Yoko, Yuriko Ito, and Kikue Kubota. "Some Mutual Interactions between Lactones and Other Aroma Constituents of Food Present in Concentrations below Their Odor Threshold." In ACS Symposium Series. American Chemical Society, 2008. http://dx.doi.org/10.1021/bk-2008-0988.ch018.

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Arican, Yagmur Emre. "Furan." In Food Safety. Nobel Tip Kitabevleri, 2024. http://dx.doi.org/10.69860/nobel.9786053358787.13.

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Furan, a volatile compound with a strong etheric odor and flammability, is a crucial component in the industrial context, producing various chemicals such as pyrrole, thiophene, tetrahydrofuran, pharmaceuticals, and pesticides. It is also used as a solvent for resins in organic synthesis and is present in many foods, including carbohydrates, unsaturated fatty acids, carotenoids, vitamin C, and amino acids, due to thermal processes and high-energy radiation used in the food manufacturing industry. Furan and its derivatives are utilized in the refining of tobacco and as flavoring agents in specific products. Furan can be generated and emitted into the environment due to human activities like combustion, fire, exhaust, and cigarette smoke. When heated, it enhances oxidative processes in lipids and proteins, impacting free radicals and antioxidant defense. Furan is a toxic substance that can cause skin irritation, burns, headaches, dizziness, shortness of breath, and loss of consciousness. Its vapor is narcotic and acts as a central nervous system depressant, leading to pulmonary edema and potentially death. Both acute oral or dermal exposure and chronic exposure are linked to significant toxicity. Furan is present in both professionally produced and handmade meals, contributing to their taste. In adults, susceptibility to furan exposure is due to coffee, while grains are considered the largest contributor to furan exposure in children and adolescents. High concentrations of furans are found in roasted coffee, heat-treated foods, and crispy and dry products like toast or bread crusts. Health institutions are apprehensive about furan’s deleterious characteristics, as studies conducted on rodents have demonstrated its toxicity primarily impacts the liver.
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Valdenebro, V., P. Uriarte, E. Sáez de Cámara, et al. "The Impact of Sub-hourly Meteorology on the Estimation of Odour Concentrations from an Industrial Source in Complex Terrain." In Air Pollution Modeling and its Application XXV. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-57645-9_73.

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Frank, Stephanie, and Peter Schieberle. "Correlation between the Concentrations of Two Oak Derived Key Odorants and the Intensity of a Woody-“Barrique-Type” Odor Note in Different Red Wines." In ACS Symposium Series. American Chemical Society, 2011. http://dx.doi.org/10.1021/bk-2011-1081.ch011.

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Nakamoto, Takamichi, Hiroshi Ishida, and Haruka Matsukura. "Olfactory Display Using Solenoid Valves and Fluid Dynamics Simulation." In Multiple Sensorial Media Advances and Applications. IGI Global, 2012. http://dx.doi.org/10.4018/978-1-60960-821-7.ch007.

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Olfaction is now becoming available in Multiple Sensorial Media because of recent progress of an olfactory display. One of the important functions of the olfactory display is to blend multiple of odor components to create a variety of odors. We have developed the olfactory display to blend up to 32 odor components using solenoid valves. High -speed switching of a solenoid valve enables us to blend many odors instantaneously at any recipe even if the solenoid valve has only two states such as ON and OFF. Since it is compact and is easy to use, it has been so far used to demonstrate a movie, an animation and a game with scents. However, a contents developer must manually adjust its concentration sequence because the concentration varies from place to place. The manually determined concentration sequence is not accurate and, moreover, it takes much time to make the plausible concentration sequence manually. Thus, it is adequate to calculate the concentration sequence using CFD (Computational Fluid Dynamics) simulation in the virtual environment. Since the spread of odor in spatial domain is very complicated, the isotropic diffusion from the odor source is not valid. Since the simulated odor distribution resembles the distribution actually measured in the real room, CFD simulation enables us to reproduce the spatial variation in the odor intensity that the user would experience in the real world. Most of the users successfully perceived the intended change in the odor intensity when they watched the scented movie, in which they approached an odor source hindered by an obstacle. Presentation of the spatial odor distribution to the users was tried, and encouraging results were obtained.
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Rybak, Jürgen, and Randolf Menzel. "Antennal Lobe of the Honeybee." In Handbook of Brain Microcircuits, edited by Gordon M. Shepherd and Sten Grillner. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780190636111.003.0028.

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The antennal lobe (AL) of an insect is the functional analog of the olfactory bulb in mammals. The first-level synaptic interaction of large numbers of multiple types of olfactory receptor neurons (OSNs) with AL interneurons serves the function of reliably coding a vast range of odorants and their mixtures and the separation between odor identity and odor concentration. Honeybees learn and discriminate among a seemingly unlimited number of odors (natural and artificial), categorize odor mixtures as unique stimuli, identify odors within 250 ms and odor sequences within 6 ms, and generalize odors according to the respective combinatorial glomerulus activity patterns in the AL. Therefore, the AL is the first-order neuropil serving basic functions of odor discrimination, categorization, generalization, and learning. This chapter first describes the internal organization of the AL, its inputs, and its outputs, and then analyzes the local circuit of a prototypical glomerulus.
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Conference papers on the topic "Odor concentration"

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Bavarian, Behzad B., S. Metha, C. Davison, B. Aguilar, and Mehrooz Zamanzadeh. "Evaluation of the Environmentally Assisted Cracking of Aluminum-Metal Matrix Composites in Marine Enviroment." In CORROSION 1993. NACE International, 1993. https://doi.org/10.5006/c1993-93285.

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Abstract A series of mechanical and electrochemical experiments were performed on samples of 6091 + 25% SiCp and 6092 + 25% SiCp in oder to investigate potential applications for these promisyng materials in the high speed aircrafts such as Hogh Speed Civil Transport(HSCT). The objective of these experiments was to evaluate the susceptibility of these materials to environment induced cracking in marine environment. Variables examined include pH, applied potential, and concentration of cholride ions. Results of these investigation showed these materials to be susceptible to stress corrosion cra
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Guoliang Qu and John J.R. Feddes. "Inherent Relationship Among Odor Concentration, Intensity, and Persistence." In 2003, Las Vegas, NV July 27-30, 2003. American Society of Agricultural and Biological Engineers, 2003. http://dx.doi.org/10.13031/2013.13878.

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Ariyakul, Yossiri, and Sumek Wisayataksin. "Data Modulation Technique Using Concentration of Odor Molecules." In 2018 IEEE Sensors. IEEE, 2018. http://dx.doi.org/10.1109/icsens.2018.8589765.

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Sandström, Malin, Thomas Proschinger, Anders Lansner, Matteo Pardo, and Giorgio Sberveglieri. "A Bulb Model Implementing Fuzzy Coding of Odor Concentration." In OLFACTION AND ELECTRONIC NOSE: Proceedings of the 13th International Symposium on Olfaction and Electronic Nose. AIP, 2009. http://dx.doi.org/10.1063/1.3156496.

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Liu, Weiling, Jingling Bao, Kehua Zou, Changjian Li, Liyuan Wang, and Yan Xu. "Computer-controlled olfactometer for quantitative study of odor concentration measurement." In 2010 3rd International Conference on Biomedical Engineering and Informatics (BMEI). IEEE, 2010. http://dx.doi.org/10.1109/bmei.2010.5639404.

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Vidybida, Alexander. "Selectivity Gain in Olfactory Receptor Neuron at Optimal Odor Concentration." In 2024 IEEE International Symposium on Olfaction and Electronic Nose (ISOEN). IEEE, 2024. http://dx.doi.org/10.1109/isoen61239.2024.10556323.

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Zemba, Stephen G. "Do Odors at a Waste Management Facility Indicate a Risk to Health?" In 20th Annual North American Waste-to-Energy Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/nawtec20-7038.

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Odor control is a frequent issue at facilities that process municipal solid waste. Even waste-to-energy facilities, which are typically operated under “negative pressure,” may be less than 100% effective at preventing the occasional release of odorous emissions. When odors travel off-property to nearby residents and businesses, the tangible exposure often elicits concerns about the specific chemicals responsible for the odor and the potential for the emissions to affect public health. However, because the gaseous compounds that may lead to objectionable off-site odors are generally different t
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Sabilla, Shoffi Izza, Malikhah, and Riyanarto Sarno. "Classification and Gas Concentration Measurements of Human Axillary Odor using Electronic Nose." In 2021 13th International Conference on Information & Communication Technology and System (ICTS). IEEE, 2021. http://dx.doi.org/10.1109/icts52701.2021.9608597.

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Penrod, Samuel L., Pete D. Unger, Ronald P. Rohrbach, Daniel E. Bause, Lixin Xue, and Russ A. Dondero. "Filtration of Aircraft Cabin Air Odors in 100% Relative Humidity, Low Temperature Conditions." In ASME 1998 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/imece1998-0646.

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Abstract Aircraft cabin air is frequently contaminated by low concentration odor causing compounds. Activated carbon has a long history of effective application in gas stream treatment. However, little information is available on removing low concentration odor causing compounds in high humidity, cold air environments. Previous research suggests that high relative humidity would severely reduce the effectiveness of activated carbon filters. Operating conditions in aircraft low pressure water separators typically run at 100% relative humidity and 2°C. Effluent or “breakthrough” curves at 5 ppmv
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Ilkka, Steven J., John Kostecki, Allen Noreen, and Terry Wilber. "Determination of Low Concentration and Desorption Performance of Gas/Odor Cabin Air Filters." In International Congress & Exposition. SAE International, 1996. http://dx.doi.org/10.4271/960538.

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Reports on the topic "Odor concentration"

1

Kauer, John, Joel White, Timothy Turner, and Barbara Talamo. Principles of Odor Recognition by the Olfactory System Applied to Detection of Low-Concentration Explosives. Defense Technical Information Center, 2003. http://dx.doi.org/10.21236/ada410979.

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2

Clausen, Jay, D. Moore, L. Cain, and K. Malinowski. VI preferential pathways : rule or exception. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41305.

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Abstract:
Trichloroethylene (TCE) releases from leaks and spills next to a large government building occurred over several decades with the most recent event occurring 20 years ago. In response to a perceived conventional vapor intrusion (VI) issue a sub-slab depressurization system (SSDS) was installed 6 years ago. The SSDS is operating within design limits and has achieved building TCE vapor concentration reductions. However, subsequent periodic TCE vapor spikes based on daily HAPSITE™ measurements indicate additional source(s). Two rounds of smoke tests conducted in 2017 and 2018 involved introductio
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Siripatrawan, Ubonratana. Active Chitosan-Based Film with Antimicrobial Property for Food Packaging Application. Chulalongkorn University, 2010. https://doi.org/10.58837/chula.res.2010.22.

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This research was aimed to develop an active film from chitosan film incorporated with green tea extract to enhance antioxidant and antimicrobial properties in order to be used for food shelf life extension. The experiments were divided into 3 parts. Firstly, chitosan-based film preparation and modification were determined. The results suggested that the optimum chitosan films could be prepared from 2% chitosan in 1% acetic acid. However, the chitosan film was brittle and had low flexibility. Mechanical property of chitosan film was modified by adding different concentrations of glycerol, as a
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4

Busby, Ryan, Morgan Conrady, Kyoo Jo, and Donald Cropek. Characterising earth scent. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/48262.

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Rationale. Earth scent is the odour emitted from soils. This scent, primarily comprising the alcohols geosmin and 2-methylisoborneol (MIB), has not been fully characterised, but offers high potential for use as an environmental interrogation tool. Methodology. We utilised our field- based, solid-phase microextraction fibre method to test the hypothesis that soil activity and soil property variation can be detected in situ by comparing biogenic volatile emissions. Results. We eliminated sources of error utilising field-based sampling with these fibres, concluding that room temperature storage f
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