Showing 421 - 440 results of 2,155 for search '"endotherms"', query time: 0.08s Refine Results
  1. 421

    Adsorption of Pb Using Mesoporous Activated Carbon and its Effects on Surface Modifications by Eleni Deliyanni, Anastasia Arabatzidou, Nikolaos Tzoupanos, Kostas A. Matis

    Published 2012-07-01
    “…Our experiments showed that adsorption was pH dependent, and any rise in temperature results in increased adsorption, which indicates the endothermic nature of the process. Typical isotherm models were fitted to describe the data. …”
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    Article
  2. 422

    Adsorption kinetics and thermodynamics of malachite green dye unto acid activated low cost carbon. by M Hema, S Arivoli

    Published 2010-06-01
    “…The temperature variation study showed that the Malachite green adsorption is endothermic and spontaneous with increased randomness at the solid solution interface. …”
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    Article
  3. 423

    An investigation of the aging of electro exploded platinum nanopowder by Chen, Wei.

    Published 2012
    “…For virgin platinum nanopowder, the differential scanning calorimetry (DSC) results indicated that there are two endothermic reactions at about 100°C and 350°C, an exothermic reaction within the temperature range of 173.4°C to 198.57°C. …”
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    Final Year Project (FYP)
  4. 424

    Asymptotic analysis of a silicon furnace model by Sloman, B, Please, C, Van Gorder, R

    Published 2018
    “…These equations account for diffusion, an endothermic reaction, and the external heating input to the system. …”
    Journal article
  5. 425

    Valorization of casuarina empty fruit-based activated carbons for dyes removal – activators, isotherm, kinetics and thermodynamics by Amran, F., Zaini, M. A. A.

    Published 2021
    “…Both intraparticle and film controlled the diffusion of dye molecules onto the carbon surface. The adsorption is endothermic and spontaneous at high temperature especially for methylene blue removal.…”
    Article
  6. 426

    Heat Optimization in Internal Curing Process of Geopolymer Mortar by Using Steel Dust by Kusbiantoro, Andri, Nabilah, Mamat, Norbaizurah, Rahman, Doh, Shu Ing

    Published 2016
    “…Endothermic is one of the fundamental characterics in geopolymer that involves external source of heat to activate the polymerization process to form strong hardened geopolymer. …”
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    Conference or Workshop Item
  7. 427

    Characterization and preparation of Polyvinyl Alcohol (PVA) as inhibitor in formation of hydrates by Najihah, Jamil, Hazlina, Husin, Ahmad Waseem, Alfida, Zachary, Aman, Zulkafli, Hassan

    Published 2018
    “…The DSC result showed the typical partially crystalline materials, showing some phases of separation are characterized by a glass transition (Tg = 25-26 °C) related to the amorphous part of the material, followed by two endothermic peaks related to the melting point (Tm = 185-225) of the crystallites. …”
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    Article
  8. 428

    Thermodynamic Analysis of the Solubility of Isoniazid in (PEG 200 + Water) Cosolvent Mixtures from 278.15 K to 318.15 K by Daniela Baracaldo-Santamaría, Carlos Alberto Calderon-Ospina, Claudia Patricia Ortiz, Rossember Edén Cardenas-Torres, Fleming Martinez, Daniel Ricardo Delgado

    Published 2022-09-01
    “…The solubility of isoniazid depends on the concentration of PEG 200 (positive cosolvent effect) and temperature (endothermic process) reaching its maximum solubility in pure PEG 200 at 318.15 K and the lowest solubility in pure water at 278.15 K. …”
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    Article
  9. 429

    Sustainable Adsorption Method for the Remediation of Crystal Violet Dye Using Nutraceutical Industrial Fenugreek Seed Spent by Syed Noeman Taqui, Mohan C.S., Mohammad Shahab Goodarzi, Mohamed Abdelghany Elkotb, Bibi Ahmadi Khatoon, Manzoore Elahi M. Soudagar, Isa Baba Koki, Ashraf Elfasakhany, Amany Salah Khalifa, Masood Ashraf Ali, Zaphar Saifullah, Md Irfanul Haque Siddiqui, Mohammad Reza Safaei, C. Ahamed Saleel

    Published 2021-08-01
    “…It is evident from thermodynamic parameter values that the process of adsorption is endothermic, physical and dynamic. The process optimization of independent variables that influence adsorption was carried out using response surface methodology (RSM) through bi-level fractional factorial experimental design (FEED). …”
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    Article
  10. 430

    The Preparation of a Lignosulfonate/Chitosan–Graphene Oxide Hydrogel Biosorbent to Effectively Remove Cr(VI) from Wastewater: Adsorption Performance and Mechanisms by Caohui Han, Xiaonan Liu, Tingting Wang, Xiaoyin Sun, Lu Bai, Yongchang Sun

    Published 2022-11-01
    “…Thermodynamic analysis showed that Cr(VI) adsorption on LCGH was spontaneous endothermic and fitted well with the pseudo-second-order kinetic and Langmuir models. …”
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    Article
  11. 431

    Enhanced production of hydrogen from methanol using spark discharge generated in a small portable reactor by Bogdan Ulejczyk, Łukasz Nogal, Michał Młotek, Krzysztof Krawczyk

    Published 2022-11-01
    “…In this discharge, there is a synergistic effect of high-energy electrons and high temperature interactions, which enables an efficient course of endothermic processes such as the production of hydrogen from methanol. …”
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    Article
  12. 432

    Biosorption of Pb(II) by the resistant Enterobacter sp.: Investigated by kinetics, equilibriumand thermodynamics by Lei Liu, Mengya Xia, Jianwen Hao, Haoxi Xu, Wencheng Song, Lei Liu, Mengya Xia, Jianwen Hao, Haoxi Xu, Wencheng Song

    Published 2021-09-01
    “…The calculated ΔGо and ΔHо were –4.06 and 14.91(kJ/mol), respectively, which indicated that biosorption process was spontaneous and endothermic. Results show that Enterobacter sp. will be an efficient biosorbent for Pb(II) removal.…”
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    Article
  13. 433
  14. 434

    Effect of glycerol on the physicochemical properties of cereal starch films by Mona AGHAZADEH, Roselina KARIM, Russly ABDUL RAHMAN, Muhammad Tauseef SULTAN, Stuart Kenth JOHNSON, Maryam PAYKARY

    Published 2018-10-01
    “…Starch films exhibited an apparent endothermic peak in the range of 151-199°C with corn starch film with 1.6% glycerol having a relatively lower To and higher Tp. …”
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    Article
  15. 435

    Microwave-Assisted Synthesis of kappa-Carrageenan Beads Containing Silver Nanoparticles with Dye Adsorption and Antibacterial Properties by Hossein Hosseinzadeh

    Published 2016-04-01
    “…The thermodynamic parameters shown that the sorption process was feasible, spontaneous and endothermic. The kinetics and isotherm of crystal violet adsorption were found to well fit to pseudo-second-order kinetic and Langmuir isotherm model, respectively. …”
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    Article
  16. 436

    Specialized impulse conduction pathway in the alligator heart by Bjarke Jensen, Bastiaan J Boukens, Dane A Crossley II, Justin Conner, Rajiv A Mohan, Karel van Duijvenboden, Alex V Postma, Christopher R Gloschat, Ruth M Elsey, David Sedmera, Igor R Efimov, Vincent M Christoffels

    Published 2018-03-01
    “…This system may have evolved together with high heart rates to support their endothermic state (warm-bloodedness) and is seemingly lacking in ectothermic vertebrates from which first mammals then birds independently evolved. …”
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    Article
  17. 437

    Structures of a Phosphoryl Derivative of 4-Allyl-2,4-dihydro-3H-1,2,4-triazole-3-thione: An Illustrative Example of Conformational Polymorphism by Ivan V. Fedyanin, Aida I. Samigullina, Ivan A. Krutov, Elena L. Gavrilova, Dmitry V. Zakharychev

    Published 2021-09-01
    “…The first form that seems to be more thermodynamically stable at room temperature transforms into the second form via two endothermic phase transitions; the apparent irreversibility of the transition is due to high energy difference between the molecular conformations in crystals.…”
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    Article
  18. 438

    Assessment of the Starch-Amylolytic Complex of Rye Flours by Traditional Methods and Modern One by Sylwia Stępniewska, Grażyna Cacak-Pietrzak, Anna Szafrańska, Ewa Ostrowska-Ligęza, Dariusz Dziki

    Published 2021-12-01
    “…Many significant correlations between parameters determined by DSC endotherm and quality parameters of rye bread, such as volume and crumb hardness, were reported. …”
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    Article
  19. 439

    Reaction coupled with transport phenomena in oxidative coupling of methane:CFD modeling for single pellet by Ramin Maghrebi, siavash seyednejadian, ramin maghrebi

    Published 2015-01-01
    “…Also, the results show that exothermic oxidation reactions occur before endothermic coupling reaction in the pellet length.…”
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    Article
  20. 440

    Magnetic induction assisted pyrolysis of plastic waste to liquid hydrocarbons on carbon catalyst by Cuong Duong-Viet, Lai Truong-Phuoc, Lam Nguyen-Dinh, Christophe Michon, Jean-Mario Nhut, Charlotte Pham, Housseinou Ba, Cuong Pham-Huu

    Published 2023-11-01
    “…By comparison to indirect Joule heating which required much higher temperatures, contactless direct induction heating allows a compensation of the internal temperature loss during such highly endothermic process through direct heat targeting. The single carbon-based catalyst combined a high and stable activity with an extremely high stability as a function of cycling tests with pure or mixed polymers. …”
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    Article