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Utilization of Deionized Water and Non-Meat Adjuncts to Combat Quality Issues in Boneless Cured Ham Associated with using Pale Raw MaterialWilbourn, Jonathan 05 August 2006 (has links)
The effects of deionized water and PSE pork percentage on the quality of smoked deli ham and retorted pouched ham with and without non-meat adjuncts were evaluated. Product quality was determined through evaluation of water holding capacity, cooked color, protein-protein bind, and sensory quality. A randomized complete block design with either three or four replications was utilized to test treatment effects in three separate experiments. The retorting process showed the potential to reduce the effect of PSE meat on color that is present in raw material and smoked deli ham. In retorted ham, modified food starch and soy protein concentrate reduced (p<0.05) cook loss and starch improved color. Deionized water can be utilized to improve yields (1 %) in smoked deli hams, and 25 % pale pork can be used without negatively affecting (p>0.05) sensory or instrumental quality in a retorted pouched ham product. Modified food starch can also be utilized to increase yields in a retortable-pouched ham without significantly affecting sensory quality.
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Měření permitivity a ztrátového činitele vody / Measurement of permitivity and dissipation factor of waterZimáková, Jana January 2012 (has links)
This master `s thesis deals about the dielectric properties of water. It describes the basic chemical and physical properties of water and its distribution in terms of structure. It also describes the basic parameters of distilled water, deionized and superclean. In the chapter number 5 described the behavior of dielectrics in an electric field, determining the dipole moment by Claus-Mossotti 'equation, measurement of permittivity and loss factor. Practical part is consists of the design of the electrode systém, of measuring the water quality and evaluation of measured data
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Étude de dispositifs hyperfréquences accordables en technologie microfluidique / Study of tunable microwave devices in microfluidics technologyDiedhiou, Daouda Lamine 20 December 2012 (has links)
La multiplication des besoins des utilisateurs dans le domaine des télécommunications a conduit à une surexploitation du spectre de fréquence. Ceci a engendré la raréfaction des bandes de fréquence conduisant à une nécessité de gestion rationnelle des fréquences. Des contraintes ont été rajoutées aux systèmes d’émission / réception et en particulier sur les filtres pour éviter la saturation des services. Dans cette thèse, les travaux s’orientent surtout vers la conception de résonateurs, de filtres planaires et volumiques (3D) accordables dans le domaine des fréquences millimétriques (>= 30 GHz) en utilisant une nouvelle technique d’accordabilité basée sur des principes microfluidiques. Il s’agit d’une nouvelle approche d’agilité qui consiste à faire circuler de la matière (liquides conducteur, diélectrique ou magnétique) dans un substrat diélectrique par le biais de micro canaux. Le substrat diélectrique utilisé, est une résine SU-8 qui offre une souplesse dans la réalisation des micros canaux et des structures volumiques grâce à son bon facteur de forme (≈ 50%). La circulation de liquides dans le substrat, permet de modifier localement les propriétés électromagnétiques du milieu, ce qui conduit à une modification de la fréquence de résonance du dispositif. / The proliferation of user needs in the field of telecommunications, has led to overexploitation of the frequency spectrum. This led to the scarcity of frequency bands leading to a need for efficient management of frequencies. Constraints were added to the transmitting / receiving systems and in particular on the filters to prevent the saturation of the services. In this thesis, work is mainly oriented towards the design of resonators, planar and volumetric (3D) tunable filters in the field of millimeter wave frequencies (> = 30 GHz) using a new tunable technique which is microfluidic. This is a new approach to agility which consists of circulating the material (conductive, dielectric or magnetic liquids) in a dielectric substrate through micro channels. The dielectric substrate used is a resin SU-8 which provides flexibility in the implementation of microchannels and volumetric structures thanks to its good form factor (≈ 50%). The circulation of fluid in the substrate allows to locally modifying the electromagnetic properties of the medium. This leads to a change in the resonant frequency of the device.
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Izolační a dielektrické vlastnosti vody / Insulation and dielectric properties of waterGrill, Jiří January 2011 (has links)
This master´s thesis deals about insulation and dielectric properties of water. It describes the structure of water, covalent and hydrogen bonds. It outlines primary chemical and physical properties of water and then it describes parameters of water - dynamic viscosity, conductivity, surface tension, pH and also describes dielectric properties - dielectric loss, loss factor, permittivity, polarization. Part of the work is practical section, which includes measurements of deionized water, destilled water, tap water and shows primary dependence such as dependence loss factor on frequency or relative permittivity on frequency.
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