Relevant bibliographies by topics / Hydration

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

Academic literature on the topic 'Hydration'

Author: Grafiati
Published: 4 June 2021
Last updated: 30 July 2024

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Journal articles on the topic "Hydration"

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Nickerson, Brett S., Ronald L. Snarr, and Greg A. Ryan. "Bias varies for bioimpedance analysis and skinfold technique when stratifying collegiate male athletes’ fat-free mass hydration levels." Applied Physiology, Nutrition, and Metabolism 45, no. 3 (March 2020): 336–39. http://dx.doi.org/10.1139/apnm-2019-0616.

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This study evaluated the accuracy of bioimpedance analysis (BIA)- and skinfold (SF)-based body fat percentage estimates in collegiate athletes with varying fat-free mass (FFM) hydration levels. Subjects were evaluated as a whole (n = 63) and at FFM hydration levels of 64.00%–68.99% (FFM-HydrationL1; n = 37) and 69.00%–74.00% (FFM-HydrationL2; n = 26). Proportional bias was absent in the SF technique when stratifying FFM hydration levels. Contrarily, proportional bias was observed when using BIA for FFM-HydrationL1, but not in FFM-HydrationL2. Novelty Fat-free mass hydration levels impact BIA-based body fat estimates more than skinfold-based body fat.
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Tan, Hong Bo, Bao Guo Ma, Kai Ke, and Jun Xiao. "Mechanism of Preferential Adsorption of Carboxylic-Vinyl Copolymer, Hydroxy Carboxylate and Sulfonation - Polyol in Cement Hydration Process." Advanced Materials Research 194-196 (February 2011): 1035–40. http://dx.doi.org/10.4028/www.scientific.net/amr.194-196.1035.

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In the ternary system of hydroxy carboxylate (HC), sulfonation-polyol (SP) and carboxylic-vinyl copolymer (PC), HC and SP preferentially adsorb on the surface of particles to shield the initial hydration. In this way, the ternary system has excellent dispersibility and holding dispersibility, and it has little effect on later hydration. By means of the chemical shrinkage, SEM and XRD analysis, the hydration mechanism of the hydroxy carboxylate (HC) and sulfonation-polyol (SP) has been discussed and the preferential adsorption model (PAM) has been established. The results show that HC delays the initial hydration of C3S and accelerates both the hydration of C3A and the formation of AFt; HC reduces the strength for 28 d with the addition of 0.2%; SP delays initial hydration of C3S and C3A; the ability of shielding hydration becomes weaker along with cement hydrating and the development of strength is normal. In the ternary system of HC, SP and PC, HC and SP with the electrostatic attraction of -SO3- and COO- and complexation of OH- preferentially adsorb on the surface of particles and active hydrating points. Then, reaction of active hydrating points was shielded and the growth of the hydration products slows. In this way, hydration of C3A and C3S are delayed, and the holding dispersibility of PC becomes better. The PC preferentially adsorbs on inert hydrating points and consumes slowly to provide dispersibility with steric hindrance. Along with hydrating going on, organic compounds are enwrapped by hydration products and the shielding ability becomes weaker and weaker. Then, the hydration becomes normal.
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Ashurst, Adrian. "Hydration, hydration, hydration." Nursing and Residential Care 13, no. 7 (July 2011): 311. http://dx.doi.org/10.12968/nrec.2011.13.7.311.

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Gorham, Laureen. "Hydration, Hydration, Hydration… Education, Education, Education." International Society of Hair Restoration Surgery 17, no. 5 (September 2007): 188.2–188. http://dx.doi.org/10.33589/17.5.0188a.

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Hayes, Sally, Tomas White, Craig Boote, Christina S. Kamma-Lorger, James Bell, Thomas Sorenson, Nick Terrill, Olga Shebanova, and Keith M. Meek. "The structural response of the cornea to changes in stromal hydration." Journal of The Royal Society Interface 14, no. 131 (June 2017): 20170062. http://dx.doi.org/10.1098/rsif.2017.0062.

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The primary aim of this study was to quantify the relationship between corneal structure and hydration in humans and pigs. X-ray scattering data were collected from human and porcine corneas equilibrated with polyethylene glycol (PEG) to varying levels of hydration, to obtain measurements of collagen fibril diameter, interfibrillar spacing (IFS) and intermolecular spacing. Both species showed a strong positive linear correlation between hydration and IFS 2 and a nonlinear, bi-phasic relationship between hydration and fibril diameter, whereby fibril diameter increased up to approximately physiological hydration, H = 3.0, with little change thereafter. Above H = 3.0, porcine corneas exhibited a larger fibril diameter than human corneas ( p < 0.001). Intermolecular spacing also varied with hydration in a bi-phasic manner but reached a maximum value at a lower hydration ( H = 1.5) than fibril diameter. Human corneas displayed a higher intermolecular spacing than porcine corneas at all hydrations ( p < 0.0001). Human and porcine corneas required a similar PEG concentration to reach physiological hydration, suggesting that the total fixed charge that gives rise to the swelling pressure is the same. The difference in their structural responses to hydration can be explained by variations in molecular cross-linking and intra/interfibrillar water partitioning.
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Hernandez Miranda, J., S. Soto Simental, N. Guemes Vera, J. Piloni Martini, A. Quintero Lira, and J. A. Rodriguez Avila. "Whey beverage improves hydrating capacity of the soccer players." Food Research 5, no. 5 (September 10, 2021): 63–71. http://dx.doi.org/10.26656/fr.2017.5(5).070.

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The hydration process is critical in soccer players. The hydrating capacity, energy recovery, and electrolyte excretion in urine were determined by the use of a whey beverage as a hydration medium for high-performance athletes compared to the effects of purified water and a sport beverage. The study was carried out through an approved research protocol, which contemplates the determination of hydrating capacity by monitoring body weight during a period of exercise and a subsequent hydration period. Energy recovery was determined by monitoring blood glucose levels and electrolyte excretion was performed by quantifying the concentration of sodium (Na+ ), potassium (K+ ), calcium (Ca2+) and magnesium (Mg2+) in urine samples provided by the participants during the research protocol. It was concluded that the whey beverage has an appropriate capacity for hydration and energy recovery, while with regard to minerals it was observed that it effectively regulates the excretion of Na+ , Ca2+ and Mg2+ .
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Matysík, Michal, Tomáš Vymazal, and Iveta Plšková. "Effect of Superplasticizers on the Cement Hydration Process." Advanced Materials Research 1100 (April 2015): 3–6. http://dx.doi.org/10.4028/www.scientific.net/amr.1100.3.

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The cement hydration is an exothermic reaction. The hydration heat is characterizing quantitatively the clinker hydration degree. Monitoring its time response makes it possible to determine not only the heat released during a certain time interval but also the concrete mix setting onset, the cement hydration degree (when evaluating the cement applicability after a long storage period) etc. The measurement of the hydration heat or the temperature versus time plot for a hydrating mix makes it possible to identify the effect of the different additives and admixtures on the mix hydration kinetics. This paper deals with the effect of adding two different super-plasticizers (lignin-sulphonate-based and naphthalene-sulphonate-based) on the hydration heat development progress. A set of iso-peribolic calorimeters was used to measure the hydration heat development process. The measurement proper consisted in monitoring and recording the temperature versus time plot for the specimen under test. The released heat amount was determined by calculation from the temperature gradient, the ambience specific thermal losses, the material thermal capacity and the test specimen mass.
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Decher, Nora R., Douglas J. Casa, Susan W. Yeargin, Matthew S. Ganio, Michelle L. Levreault, Catie L. Dann, Camille T. James, Megan A. McCaffrey, Caitlin B. O’Connor, and Scott W. Brown. "Hydration Status, Knowledge, and Behavior in Youths at Summer Sports Camps." International Journal of Sports Physiology and Performance 3, no. 3 (September 2008): 262–78. http://dx.doi.org/10.1123/ijspp.3.3.262.

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Purpose:To assess the hydration status and level of hydration knowledge of youths at summer sports camps.Methods:Sixty-seven active youths, 57 males (mean ± SD, 12 ± 2 y, 136 ± 16 cm, 50.6 ± 21.1 kg) and 10 females (13 ± 2 y, 153 ± 8 cm, 45.2 ± 9.0 kg) participated in 4 d of sports camp. Hydration status was assessed before the first practice (AM) and after the second practice (PM). Participants completed suriveys assessing hydration knowledge (HAQ) and hydration habits on day 3 and a self-assessment (EQ#1).Results:Mean AM urine specific gravity (USG) and urine osmolality (Uosm) scores ranged from minimal to significant dehydration across 4 d, even when temperatures were mild. Correlations between hydration indices and EQ#1, ranging from 0.11 to −0.51, were statistically significant (P < .05), indicating that subjects recognized when they were doing a good or bad job hydrating. HAQ did not correlate strongly with hydration indices suggesting other impediments to hydration. Thirst correlated negatively with EQ#1 (from −0.29 to −0.60).Conclusion:Hydration at summer sports camp is a concern and special efforts need to be made to help youths develop hydration strategies.
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Siti Zubaidah and Doni Hikmat Ramdhan. "The Impact of Hydration Level on Groundhandling Officer at Bandara Soekarno Hatta." Media Publikasi Promosi Kesehatan Indonesia (MPPKI) 7, no. 6 (June 4, 2024): 1665–70. http://dx.doi.org/10.56338/mppki.v7i6.5373.

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Background: Groundhandling workers are workers who are exposed to heat for quite a long time. A work environment that exceeds tolerance limits can cause health problems such as dehydration and fatigue. Lestari (2016) in his research stated that a hot work environment that exceeds the Threshold Limit Value (TLV) can increase the risk of dehydration. Purpose: This research focuses on fatigue and the risk factors of fatigue, especially those caused by dehydration, without disregarding other risk factors among ground handling workers at Soekarno-Hatta Airport. Method: The method used in this research is an observational analytic approach with a cross-sectional design. The sampling technique employed random sampling with a sample size of 219 respondents consisting of ground handling workers working both inside buildings and on the apron. The measuring instruments used were specific gravity urine tests to determine hydration status and IFRC questionnaires to assess workers' physical fatigue status. Result: From the existing data it was found that the majority of respondenst experienced mild fatigue, namely 36,5% of the 219 respondents and others experienced severe fatigue 63,5%. With hydration status, most workers have good hydration status (euhydration), namely 70,3% and and some others experienced dehydration, namely 29,7%. The result of the analysis between hydration status and level fatigue showed 35,4% of respondents who werw dehydrated experienced severe fatigue, while 37% of respondents who were euhydrated/normohydrated experirienced severe fatgue. The results of the analysis test obtained was no relationship between hydratin status and fatigue level. The OR (Odd Ratio) shows a result or 0,932 meaning that respondents withs dehyration are protective factor of 0,93 times agains severe fatigue. Conclusion: The conclusion of this research is that good hydraton status can prevent fatigue in workers, especially those who work with direct heat exposure.
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Surzhko, L., V. Lubashev, and I. Poperechnyj. "Impact of hydrating status on residual renal function in hemodialysis patients (first report)." Ukrainian Journal of Nephrology and Dialysis, no. 3(63) (August 20, 2019): 40–46. http://dx.doi.org/10.31450/ukrjnd.3(63).2019.06.

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Residual kidney function (RKF) is a powerful indicator of residual renal functional capacity that eliminates uremic toxins and fluid in hemodialysis patients. The purpose of our study was to investigate the influence of hydrating status on residual renal function in patients with CKD 5HD. Methods. A prospective observational study included 60 hemodialysis patients with CKD VD. All patients were examined - taken general and biochemical blood tests, determined the level of urea and creatinine in the daily urine. RKF was evaluated by urine volume, residual KT / V and KRU. Water balance was measured and evaluated using BCM-monitor. Results.During the analysis of BCM data, hyperhydration (OH / ECW above 15%) was revealed in 15 among all patients included in the study, which amounted to 25%. A statistically significant difference between patients who were hyperhydrated and normohydrated was found in relative (OH / ECW) and absolute hydration (OH), ECW, and ultrafiltration rates. Thus, in the group of hyperhydrated patients, the average relative hydration rate was 14.3% lower compared to normohydrated patients (p < 0.001) and absolute hydration by 2.6 l (p < 0.001). In further analysis, no significant difference between two groups was found in the indicators characterizing the RKF, namely, between the level of urine output, KRU, KT / Vren. The level of ultrafiltration in the group with normal hydration is 900 ml lower than that with hyperhydration (p < 0.005). In study the influence of indicators of hydration status such as OH, OH / ECW, TBW, ECW, ICW on RKF indices no reliable correlation of the above mentioned values ​​with diuresis, KRU, KT / Vren (p > 0.05) was found. A positive correlation was found between KRU, diuresis and KT / Vren, indicating that with increasing diuresis the KRU value and KT / Vren increase (p < 0.001). The same relationship was found between diuresis and KT / Vren, p < 0.001. An analysis of the relationship between absolute and relative hydration with dialysis efficacy (eKT / V) revealed that dialysis efficacy decreases with increase of hydratation in CKD 5HD patients (p < 0.05). Conclusions. The results obtained in our study indicate that the indicators of hydration status at baseline do not allow to find out an influence of them on the baseline level of RKF (diuresis, KRU and KT / Vren) in patients with CKD 5HD. Issues of the influence of hydration status on changes in RKF during the observation will be addressed in the following reports.
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Dissertations / Theses on the topic "Hydration"

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Matschei, Thomas. "Thermodynamics of cement hydration." Thesis, University of Aberdeen, 2007. http://library.eawag-empa.ch/empa_publications_2007_open_access/EMPA20070485.pdf.

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Afshar, Ali Behrooz. "The early hydration of cement." Thesis, Heriot-Watt University, 1986. http://hdl.handle.net/10399/1059.

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This thesis details the development and use of an electrical response technique for monitoring the chemical and physical changes occurring within the cement paste during the initial 24 hours after gauging with water. Traditional empirical tests and the more sophisticated laboratory examinations such as X-ray diffraction, scanning and transmission electron microscopy are critically reviewed. The study involves the electrical measurements on realistic sample sizes and constituent proportions. A modified electricalmodel for the response of cement paste to an applied electrical field is proposed. An automated microcomputer data logging system has been developed to facilitate electrical measurements. It has been demonstrated that the electrical response measurements of cement paste can be related to the physio-chemical processes that take place during hydration. Extensive microstructural examination of fracture surfaces of cement pastes using Scanning Electron Microscopy revealed that regions of definite crystallization and the prediction as to the hydrate morphology can be linked to the electrical response. The technique could be offered as an additional tool for investigating the structure building processes and microstructure development within cement paste. The electrical response data can be used to monitor cement hydration and it is shown that assessment of the effect of varying chemical composition; age of cement; addition of admixtures and environmental conditions have a definite influence on hydration processes.
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Dare, Diane Julie. "Spectroscopic NMR studies of hydration." Thesis, University of Nottingham, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299045.

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Zhou, Qizhi. "Hydration of calcium sulfoaluminate cement." Thesis, University of Aberdeen, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367374.

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Selected aspects relating to in-service performance of calcium sulfoaluminate cement are reported. The stability of ettringite, which is the main hydration product and major strength-giving component of calcium sulfoaluminate cement, was studied with respect to thermal stability and resistance to carbon dioxide. Using Synchrotron Radiation - Energy Dispersive Diffraction technique, the behaviour of calcium sulfoaluminate cements during the early hydration time has been investigated. Ettringite formation occurs at a very early stage of hydration, as early as about 15 minutes under the provided experimental conditions. This ettringite formation fits well with the relative heat evolution curves in terms of hydration time. Under independently controlled temperature and water vapour pressure, the formation and decomposition of synthetic ettringite are shown to be reversible but with hysteresis. The obtained data are used to predict safe conditions for the use of ettringite and ettringite-based cements in warm conditions. The partial dehydration products of ettringite typically have 10 to 13 H2O per formula weight of ettringite and still give electron diffraction patterns characteristic of ettringite although the same products are amorphous to X-ray powder diffraction. It is observed that there are important differences in carbonation mechanisms and mineralogical features between powders and pellet samples. In the interior of pellets, undergoing carbonation, escape of the excess of water is more difficult than from powders. The pore spaces tend to become flooded as a result, secondary reactions of dissolution and reprecipitation occur leading to nucleation and crystallisation of calcium monosulfoaluminate. The reactivity of two polymers, styrene-butadiene rubber (SBR) and ethylene vinyl acetate (EVA), mixed with calcium sulfoaluminate cement, Portland cement and high aluminate cement has been studied. The observation indicates there is no bulk chemical interaction between the polymers and cements. However, physical or mechanical interactions may occur between the polymers and cements.
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Skalamprinos, Solon. "Hydration of calcium sulfoaluminate cements." Thesis, University of Aberdeen, 2017. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=234036.

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The necessity to reduce CO2 emissions has increased the driving force for the cement research community to develop alternatives to traditional Portland cement (PC). One of the alternative cements being investigated is calcium sulfoaluminate cement (CS ̅A), first developed commercially in China in the 1970's. CS ̅A cements are produced by clinkering together limestone, bauxite, clay and calcium sulfate to produce mainly ye'elimite (C4A3S ̅) and belite (C2S). Due to the presence of ye'elimite, SO3 content is typically between 6 – 10 wt%. The abundance of elemental sulfur arising from the desulfurisation of oil and gas and its use to produce CS ̅A clinkers were the starting points of the Green Concrete Project (GCP), which aimed to develop a novel approach to produce CS ̅A cement via the combustion of elemental sulfur, recycling this by-product and reducing the dependence on hydrocarbon fuels. Integrating the current knowledge on the production of CS ̅A, a new generation of CS ̅A belite calcium sulfoaluminate (BCS ̅A) and belite-ye'elimite-ternesite (BYT) clinkers incorporating the combustion of elemental sulfur has been successfully developed and produced in a pilot plant production process. A high-temperature thermodynamic model was developed to predict stable assemblages and to complement and validate experimental results. Within the frame of the GCP, the title thesis focused on collecting conditional thermodynamic data for ye'elimite and ternesite (enthalpy of formation) that were determined experimentally using isothermal conduction calorimetry. The enthalpies of formation of ye'elimite and ternesite at 25 °C were determined to be -8523 kJ/mol and -5993 kJ/mol, respectively. The thesis was also focus on characterising two clinkers of interest (designated BCS ̅A and BYT) obtained from a pilot plant trial (with the novelty of sulfur combustion). The obtained clinkers, BCS ̅A and BYT, have a distinctive mineralogy where alpha prime belite (α΄-C2S) and ternesite (C5S2S ̅) are present, respectively. Both phases are candidates to replace a significant amount of ye'elimite and therefore reduce the need of expensive bauxite to establish a more sustainable cement. The alpha prime polymorph of belite proved to be more reactive than the beta. However, actions had to be taken to control the fast setting of this BCS ̅A cement. To provide a solution to the fast setting problem a variety of retarders were investigated: 0.5 wt% citric acid with an additional 5 wt% gypsum showed the best results. A fundamental solution was also Abstract 5 investigated in order to avoid the use of any retarders. The results showed that the clinkering temperature should be around 1300 °C. The hydration of ternesite in the BYT cement was found to be moderate. Therefore, a thorough investigation was conducted to understand and find ways to enhance its reactivity. It was found that the addition/presence of 0.4 wt% MgO, 0.2 wt% K2O and 0.1wt% Na2O in the raw meal required for the synthesis of ternesite, can increase its reactivity. Furthermore, it was found that particle size distribution above 600 m2/kg can also accelerate its reactivity. Single-phase chemically activated ternesite hydrated rapidly at 25 °C, achieving compressive strengths of ≈ 30 and ≈ 65 MPa at 28 and 90 days respectively, with C-S-H and gypsum as hydration products.
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El, Khessaimi Yassine. "Synthesis and hydration of ye’elimite." Thesis, Limoges, 2019. http://www.theses.fr/2019LIMO0090/document.

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Synthèse et hydratation de la phase ye’elimite Les ciments riches en ye’elimite ou les ciments sulfoalumineux (CSA) sont commercialisés pour la préparation des bétons à compensation de retrait. De plus, les ciments CSA présentent des caractéristiques écologiques associées à leur production, notamment une réduction de l'empreinte CO2. Le comportement expansif des ciments CSA est principalement contrôlé par la quantité de la phase ettringite, cette dernière est produite lors de l’hydratation de la phase importante, la ye’elimite [Ca4 (Al6O12)SO4]. Cette thèse présente, d’une part, les conditions optimales pour la synthèse de la phase ye’elimite la plus pure possible par des réactions à l’état solide, et d’autre part, une description fondamentale des mécanismes de formation de cette phase. Un autre aspect de ce travail vise à étudier l’influence de la finesse et de l’addition d’acide citrique sur la dissolution de la phase ye’elimite. Pour l’étude de l’effet de la finesse, une poudre fine et pure de ye’elimite a été synthétisée par des méthodes sol-gel, ces dernières méthodes de synthèse ont été développées d’une manière originale dans notre thèse. Plusieurs techniques expérimentales ont été réalisées pour mener à bien les différents aspects de la présente thèse, à savoir l'analyse quantitative par DRX (méthode Rietveld), l’analyse thermique (ATG, ATD, et dilatométrie), MEB (imagerie en rétrodiffusé et cartographie EDS), l’analyse BET, l’analyse granulométrique par diffraction laser, et l’analyse d'images (porosité 2D et analyse granulométrique 2D)
A Synthesis and hydration of ye’elimite Ye’elimite-rich cements or calcium sulfoaluminate (CSA) cements are commercialized to prepare shrinkage compensation and self-stressing concretes. Moreover, CSA cements show environmentally friendly characteristics associated to their production, which include reduced CO2 footprint. The expansive behavior of CSA cements is mainly controlled by ettringite amount, produced upon hydration of the key-phase, ye’elimite [Ca4(Al6O12)SO4]. This work presents, on one hand, the optimal conditions for the synthesis highly pure ye’elimite by solid state reactions, and on the other hand, it shows a fundamental description of ye’elimite formation mechanisms. Another aspect of the study encompasses the influence of fineness and citric acid addition on ye’elimite phase dissolution, then on hydrates composition of lab made ye’elimite-rich cement. For the fineness effect study, a highly fine and pure ye’elimite was originally synthetized by sol-gel methods. Various experimental techniques were performed to conduct the different aspects of the present study, namely XRD-Quantitative Rietveld analysis, Thermal analysis (TGA, DTG, DTA and Dilatometry), SEM (BSE imaging and EDS mapping), BET analysis, PSD by laser diffraction, and Image analysis (2D porosity and 2D PSD)
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Berger, Julia. "Hydration of swelling clay and bacteria interaction : An experimental in situ reaction study." Université Louis Pasteur (Strasbourg) (1971-2008), 2008. https://publication-theses.unistra.fr/public/theses_doctorat/2008/BERGER_Julia_2008.pdf.

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Cette étude traite du comportement des smectites et de leurs interactions Shewanella putrefaciens. Les résultats expérimentaux ont été obtenu en utilisant un nouveau type de cellule réactionnelle (Warr & Hoffman, 2004) conçue afin de réaliser des mesures de diffraction des rayons X (DRX) in-situ. Des calculations avec CALCMIX (Plançon & Drits, 1999) ont été utilisées pour quantifie d'eau contenue dans les différents sites de stockage (interfoliaires, surfaces et porosité). Les expériences d'hydratation de smectites en conditions abiotiques réalisées sur des bentonites naturelles et industrielles. Le taux d'hydratation abiotiques des smectites, a été défini comme fortement dépendant du type de cation interfoliaire et de la force ionique de la. La survie des bactéries dans les smectites est attribué à un apport de nutriments, de Corg, à la capacité tampon et à la surface des argiles. En conditions de volume confiné, la présence de bactéries augmente de la porosité
This study reports on the physical-chemical behaviour of smectites and their interaction with Shewanella putrefaciens. Experimental results were obtained using a reaction-cell (“wet-cell”, Warr & Hoffman, 2004) for in situ X-ray diffraction (XRD). Calculations with CALCMIX allowed to quantify different water storage sites (interlayers, surfaces and pore spaces). The rate of abiotic smectite hydration is highly dependent on the type of interlayer cation (enhanced for Ca as opposed to Na) and the ionic strength of solution. A prolonged survival of bacteria in smectite suspensions is attributed to the supply of cationic nutrients and Corg, the buffering capacity and the surface areas. In confined volume conditions, the presence of bacteria in Na-smectite clay was seen to enhance the sample porosity. In underground waste disposal sites bacterial activity can modify both chemically and physically the properties of the smectite and have to be taken into account
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Pastor, Alberto Claudio Miano. "Ultrasound assisted hydration of grains with sigmoidal behavior: kinetics of hydration, cooking, germination and nutrient incorporation." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/11/11141/tde-21012019-145147/.

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This Thesis had as objectives to study the hydration process of grains with sigmoidal behavior, evaluating ultrasound technology to improve it, the possible effects on germination, cooking and a possible incorporation of nutrients. The work was developed in three parts. The first part consisted of describing the hydration kinetics of many grains to have a data bank of hydration kinetics, allowing further selections. Furthermore, this part compared the differences among grains hydration kinetics, associating them with the intrinsic properties of the grains and questioning some inferences previously published in the literature. The second part was related to study the effect of ultrasound on the hydration kinetics of grains with sigmoidal behavior, being studied Andean lupin, mung beans and white kidney beans. Further, the effect of ultrasound in combination with soaking water at high temperatures was studied to demonstrate if they have additive, synergic or antagonist effect. The effect of ultrasound technology was evaluated in the water uptake, extraction of components, germination and cooking kinetics. The third part consisted of studying and describing the incorporation of a nutrient inside the grains, taking advantage of the hydration process. Further, ultrasound was used to improve this incorporation. The main results of this work corroborate that the hydration process is a complex phenomenon, and many intrinsic properties of the grains causes the kinetics differences. In addition, the fact that only legume grains have sigmoidal behavior of hydration was proved. Further, the ultrasound accelerated the hydration process of grains with sigmoidal behavior without affecting the grain starch, improving the extraction of undesirable components, enhancing or hindering the germination (depending on the grain), but without affecting the cooking process. Another result was that the higher the soaking water temperature is, the lower the ultrasound effect on hydration is. Finally, regarding nutrient incorporation, a hydrophilic nutrient (iron) was incorporated in a grain during hydration process demonstrating that it is possible. The iron incorporation had the same behavior as the water uptake, suggesting similar mechanisms and phenomena of mass flow. In addition, the incorporated iron was attached not only to the bean cotyledon, but also mostly in the seed coat. Furthermore, ultrasound technology enhanced this process. The cooking process of the studied grains was improved, and its germination was hindered by the incorporated iron. In conclusion, ultrasound technology can be used for improving the hydration process of grains with sigmoidal behavior, being also practical for nutrient incorporation into grains.
A presente Tese teve como objetivos estudar o processo de hidratação de grãos com comportamento sigmoidal de hidratação, avaliar a tecnologia de ultrassom para a sua melhora, os possíveis efeitos na germinação, cozimento e possível incorporação de nutrientes. O trabalho foi feito em três etapas. A primeira etapa consistiu em realizar uma prospecção de hidratação de diversos grãos, auxiliando na escolha dos futuros grãos a serem estudados. Ainda, comparou-se as cinéticas de hidratação associando-as com as propriedades intrínsecas dos grãos, avaliando diversas inferências publicadas sobre o processo. Na segunda etapa estudou-se o efeito do ultrassom de alta potência no processo de hidratação de três grãos com comportamento sigmoidal: tremoço andino, feijão moyashi e feijão branco. Também foi avaliado o efeito combinado do ultrassom e a temperatura da água de hidratação. O efeito da tecnologia de ultrassom foi avaliado na cinética de absorção de água, extração de compostos, germinação e cozimento. A terceira etapa consistiu em aproveitar o longo tempo do processo de hidratação para incorporar um nutriente hidrossolúvel dentro do grão. O ultrassom foi também usado para acelerar este processo. Os resultados mais importantes da Tese foram que se corroborou que a hidratação de grãos é um processo complexo e que há muita dificuldade em correlacionar as propriedades intrínsecas dos grãos com as características da hidratação. Ainda, foi demonstrado que o comportamento sigmoidal de hidratação é somente encontrado em grãos da família das leguminosas. Também foi demostrado que o ultrassom acelera a hidratação de grãos com comportamento sigmoidal e que esta tecnologia não afeta o amido dos grãos, melhora ou piora a germinação (dependendo do grão), e não afeta o cozimento. Corroborou-se que quanto maior a temperatura da água, menor é o efeito do ultrassom na cinética de hidratação. Finalmente, demonstrou-se que é possível incorporar nutrientes solúveis dentro dos grãos, aproveitando assim o longo tempo de hidratação. Encontrou-se que a incorporação de nutrientes segue mecanismo similar que a entrada de água, e que pode ser acelerado usando ultrassom. Também, foi demonstrado que o ferro foi incorporado no cotilédone e no tegumento (em maior quantidade), e que este composto melhora o cozimento do feijão, porém prejudica a sua germinação. Em conclusão, o ultrassom pode ser usado para melhorar o processo de hidratação de grãos e para a incorporação de algum nutriente.
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9

Franca, Maria Claudia Rodrigues do Prado. "Effects of hydration on voice performance /." Available to subscribers only, 2006. http://proquest.umi.com/pqdweb?did=1208133721&sid=7&Fmt=2&clientId=1509&RQT=309&VName=PQD.

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Norton, Clive. "Texture and hydration of expanded rice." Thesis, University of Nottingham, 1998. http://eprints.nottingham.ac.uk/11620/.

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The differences between conventionally processed and extruded puffed rice were examined, with a view to determining the reasons for their different storage behaviour in confectionery. Differences between the two forms of puffed rice have been identified, both in their performance and their properties. Under certain viewing conditions, the starch granules in conventionally processed and extruded rice appear to be different. The starch granules in conventionally puffed Rice remain intact, but with no crystalline structure (i.e. no Maltese crosses are visible, though starch ghosts are abundant.) Cell walls of conventionally processed rice appear to be a layer of these gelatinised intact granules. The ghostlike granules have not undergone notable swelling, remaining slightly greater than 10μm in diameter, similar to the size of unprocessed granules. In contrast, the starch granules in extruded puffed rice are rarely visible, in either their birefringent Maltese cross form, or as gelatinised but intact ghosts. By altering the extrusion conditions, the microscopic appearance of the product and its behaviour in water or water vapour becomes similar to that of conventionally processed rice. The extrusion parameters required for this similarity to conventionally processed rice fall within a window that is relatively narrow when compared to the ranges of variables available. Under more severe processing conditions the granules lose their integrity because shear and heat disrupt them. Under less severe conditions, the granules form clusters that do not gelatinise. The conditions at which this product is made cannot be interpolated or extrapolated from samples made under other conditions. However, at these extrusion parameters, the extrudate does not expand. It is necessary to expand the extrudate separately from the extrusion process. A novel method for the analysis of multi-peak force responses from compression of low moisture puffed cereal products was developed. This enabled crisp and crackly to be distinguished instrumentally. The results correlated well with sensory evaluation.
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Books on the topic "Hydration"

1

Disalvo, E. Anibal, ed. Membrane Hydration. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-19060-0.

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Harrellson, Steven Glenn. Hydration Solids. [New York, N.Y.?]: [publisher not identified], 2022.

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J, Arnaud M., Vellas B. J, Albarede J. L, and Garry Philip J. 1933-, eds. Hydration and aging. Paris: Serdi, 1998.

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Nakasako, Masayoshi. Hydration Structures of Proteins. Tokyo: Springer Japan, 2021. http://dx.doi.org/10.1007/978-4-431-56919-0.

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Tollefsen, Christopher, ed. Artificial Nutrition and Hydration. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6207-0.

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Bowyer, Justin. Running: Motivation, nutrition & hydration. London: Flame Tree, 2012.

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International RILEM Workshop on Hydration and Setting (1991 Dijon, France). Hydration and setting of cements. London: Spon, 1992.

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Montain, Scott J. Water requirements and soldier hydration. Washington D.C.]: Borden Institute, 2010.

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Fischer, Hans-Bertram. Zum Einfluss chemischer Zusätze auf die Hydratation von Branntgips: Konduktometrische Untersuchungen. Verlag Shaker: Aachen, 1992.

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Bakeev, M. I. Osnovy teorii gidratat͡s︡ii i rastvorenii͡a︡ soleĭ. Alma-Ata: "Nauka" Kazakhskoĭ SSR, 1990.

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Book chapters on the topic "Hydration"

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Ganio, Matthew S., Lawrence E. Armstrong, and Stavros A. Kavouras. "Hydration." In Sport and Physical Activity in the Heat, 83–100. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-70217-9_5.

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Gooch, Jan W. "Hydration." In Encyclopedic Dictionary of Polymers, 374. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_6096.

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Suzuki, Miwa, and Rudy M. Ortiz. "Hydration." In Physiology of Marine Mammals, 157–80. Boca Raton: CRC Press, 2023. http://dx.doi.org/10.1201/9781003297468-8.

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Macrae, Heather Z., and Lewis J. James. "Hydration." In Nutrition and Supplements in Cycling, 86–103. New York: Routledge, 2024. http://dx.doi.org/10.4324/9781003375418-6.

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Cevc, Gregor. "Lipid Hydration." In Water and Biological Macromolecules, 338–89. London: Macmillan Education UK, 1993. http://dx.doi.org/10.1007/978-1-349-12359-9_12.

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van Oss, C. J. "Hydration Forces." In Water and Biological Macromolecules, 393–429. London: Macmillan Education UK, 1993. http://dx.doi.org/10.1007/978-1-349-12359-9_13.

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Treffel, P., and B. Gabard. "Skin Hydration." In Dermatopharmacology of Topical Preparations, 317–28. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-642-57145-9_20.

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Maibach, Howard. "Skin Hydration." In Drug Discovery and Evaluation: Pharmacological Assays, 4003–4. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-05392-9_109.

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Gawrisch, Klaus, Adrian V. Parsegian, and Peter R. Rand. "Membrane hydration." In Springer Series in Biophysics, 61–73. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-74471-6_5.

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Zhang, Chenhui. "Hydration Force." In Encyclopedia of Tribology, 1704–8. Boston, MA: Springer US, 2013. http://dx.doi.org/10.1007/978-0-387-92897-5_466.

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Conference papers on the topic "Hydration"

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Esther, C. R., W. K. O'Neal, W. H. Anderson, M. Kesimer, A. T. Hastie, R. G. Barr, R. P. Bowler, et al. "Impaired Mucus Hydration and Hydration Signaling Pathways in COPD." In American Thoracic Society 2019 International Conference, May 17-22, 2019 - Dallas, TX. American Thoracic Society, 2019. http://dx.doi.org/10.1164/ajrccm-conference.2019.199.1_meetingabstracts.a1126.

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Agcayazi, Talha, Gin Jong Hong, Bryan Maione, and Ethan Woodard. "Wearable infant hydration monitor." In 2016 IEEE Virtual Conference on Applications of Commercial Sensors (VCACS). IEEE, 2016. http://dx.doi.org/10.1109/vcacs.2016.7888786.

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Bishnoi, Shashank. "Optimised continuum cement hydration modelling." In 2nd International RILEM Symposium on Advances in Concrete through Science and Engineering. RILEM Publications, 2006. http://dx.doi.org/10.1617/2351580028.005.

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Desai, Reshma R., J. A. Erwin Desa, and V. K. Aswal. "Hydration studies of Bentonite clay." In SOLID STATE PHYSICS: Proceedings of the 56th DAE Solid State Physics Symposium 2011. AIP, 2012. http://dx.doi.org/10.1063/1.4709948.

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Hoehn, Alex, Paul Scovazzo, Louis S. Stodieck, James Clawson, William Kalinowski, Alexi Rakow, David Simmons, A. Gerard Heyenga, and Mark H. Kliss. "Microgravity Root Zone Hydration Systems." In International Conference On Environmental Systems. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2000. http://dx.doi.org/10.4271/2000-01-2510.

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Voloshin, V. P., A. V. Anikeenko, N. N. Medvedev, A. Geiger, and D. Stoyan. "Hydration Shells in Voronoi Tessellations." In Seventh International Symposium on Voronoi Diagrams in Science and Engineering (ISVD 2010). IEEE, 2010. http://dx.doi.org/10.1109/isvd.2010.20.

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Singh, R. S., P. Tewari, J. L. Bourges, J. P. Hubschman, D. B. Bennett, Z. D. Taylor, H. Lee, E. R. Brown, W. S. Grundfest, and M. O. Culjat. "Terahertz sensing of corneal hydration." In 2010 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2010). IEEE, 2010. http://dx.doi.org/10.1109/iembs.2010.5626146.

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"Hydration of MgO/hydromagnesite Blends." In SP-349: 11th ACI/RILEM International Conference on Cementitious Materials and Alternative Binders for Sustainable Concrete. American Concrete Institute, 2021. http://dx.doi.org/10.14359/51732735.

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"Synthesis and Hydration of Ye’elimite." In SP-349: 11th ACI/RILEM International Conference on Cementitious Materials and Alternative Binders for Sustainable Concrete. American Concrete Institute, 2021. http://dx.doi.org/10.14359/51732776.

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Garde, Shekhar, Gerhard Hummer, and Michael E. Paulaitis. "Hydration of the tetramethylammonium ion: From water structure to the free energy of hydration." In SIMULATION AND THEORY OF ELECTROSTATIC INTERACTIONS IN SOLUTION. ASCE, 1999. http://dx.doi.org/10.1063/1.1301529.

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Reports on the topic "Hydration"

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Carter, R., S. N. Cheuvront, M. A. Kolka, and M. N. Swaka. Hydration Status Monitoring. Fort Belvoir, VA: Defense Technical Information Center, January 2004. http://dx.doi.org/10.21236/ada457901.

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Bentz, Dale P. A three-dimensional cement hydration and microstructure program. I. hydration rate, heat of hydration, and chemical shrinkage. Gaithersburg, MD: National Institute of Standards and Technology, 1995. http://dx.doi.org/10.6028/nist.ir.5756.

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Atwood, Jim, D. Catalytic Hydration of Alkenes and Alkynes. Office of Scientific and Technical Information (OSTI), March 2003. http://dx.doi.org/10.2172/808955.

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Plodinec, M. J. Free energy of hydration of niobium oxide. Office of Scientific and Technical Information (OSTI), August 1996. http://dx.doi.org/10.2172/525049.

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Gu, Wei, and B. P. Schoenborn. Molecular dynamics simulation of hydration in myoglobin. Office of Scientific and Technical Information (OSTI), September 1995. http://dx.doi.org/10.2172/104441.

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Struble, Leslie J. Manual for the cement hydration simulation model. Gaithersburg, MD: National Bureau of Standards, 1989. http://dx.doi.org/10.6028/nist.tn.1269.

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Russo, Daniela, Greg Hura, and Teresa Head-Gordon. Hydration water dynamics and instigation of protein structuralrelaxation. Office of Scientific and Technical Information (OSTI), September 2003. http://dx.doi.org/10.2172/927173.

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Bratko, Dusan. Hydration Mechanisms in Nanoparticle Interaction and Surface Energetics. Office of Scientific and Technical Information (OSTI), August 2020. http://dx.doi.org/10.2172/1648411.

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Nasol, D. Heat of Hydration of Low Activity Cementitious Waste Forms. Office of Scientific and Technical Information (OSTI), July 2015. http://dx.doi.org/10.2172/1204364.

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Lokken, R. O. Heat of hydration of double-shell slurry feed grouts. Office of Scientific and Technical Information (OSTI), December 1992. http://dx.doi.org/10.2172/479175.

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