Showing 921 - 940 results of 1,516 for search '"thermodynamic"', query time: 0.08s Refine Results
  1. 921

    Adsorption Studies of Textile Dye (Chrysoidine) from Aqueous Solutions Using Activated Sawdust by Muhammad Waqar Ashraf, Nidal Abulibdeh, Abdus Salam

    Published 2019-01-01
    “…., on the adsorption process was studied along with thermodynamic parameters such as enthalpy (ΔH°) and entropy (ΔS°).…”
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    Article
  2. 922

    Green Synthesis of S- and N-Codoped Carbon Nanospheres and Application as Adsorbent of Pb (II) from Aqueous Solution by Nadia Hussain, Salam Alwan, Hassan Alshamsi, Ibrahim Sahib

    Published 2020-01-01
    “…The kinetic data were analyzed with two different kinetic models, and both apply to the adsorption process depending on the values of correlation coefficients. The thermodynamic parameters including Gibbs free energy (ΔG°), standard enthalpy change (ΔH°), and standard entropy change (ΔS°) were calculated for the adsorption process.…”
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    Article
  3. 923

    Irreversibility and Sensitivity analysis of MHD squeezing various shaped nanofluid flow between parallel permeable disks by Abdul Awal, Md. Sarwar Alam

    Published 2025-03-01
    “…The efficiency of the thermodynamic system of a real process strongly depends on the effective controlled of entropy generation rate. …”
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    Article
  4. 924

    Removal of Copper(II) Ions from Aqueous Solutions Using Natural Kaolinite by Xue-Song Wang, Jin Wang, Cheng Sun

    Published 2006-07-01
    “…The maximum adsorption capacity was found to be 16.79 mg/g at a pH value of 6.0, an initial Cu(II) ion concentration of 40 mg/dm 3 and a temperature of 313 K. Various thermodynamic parameters, viz. the standard free energy change (ΔG 0 ), the enthalpy (ΔH 0 ) and the entropy (ΔS 0 ), were evaluated for the process with the results indicating that it was spontaneous and endothermic in nature. …”
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    Article
  5. 925

    Colour Removal from Dye Wastewater Using Sugar Cane Dust as an Adsorbent by S.D. Khattri, M.K. Singh

    Published 1999-04-01
    “…The variation in the extent of removal with pH has been explained on the basis of surface ionisation and complexation. Various thermodynamic parameters (ΔG 0 , ΔH 0 and ΔS 0 ) have also been determined in order to explain the results.…”
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    Article
  6. 926

    Comparison of the Sorption of Trifluoromethane (R-23) on Zeolites and in an Ionic Liquid by Mark B. Shiflett, David R. Corbin, A. Yokozeki

    Published 2013-02-01
    “…The adsorption on zeolites took more time than the absorption in the ionic liquid to reach thermodynamic equilibrium.…”
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    Article
  7. 927

    Performance Analysis of a Photovoltaic-Thermal Integrated System by Ewa Radziemska

    Published 2009-01-01
    “…Exergy analysis identifies the location, the magnitude, and the sources of thermodynamic inefficiences in a system. This information, which cannot be provided by other means (e.g., an energy analysis), is very useful for the improvement and cost-effictiveness of the system. …”
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    Article
  8. 928

    Multipopulation Spin Models: A View from Large Deviations Theoretic Window by Alex Akwasi Opoku, Godwin Osabutey

    Published 2018-01-01
    “…These results are consequently used to derive variational formula for the thermodynamic limit for the pressure of multipopulation Curie-Weiss (I. …”
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    Article
  9. 929

    Development and Characterization of SA-g-p(FA-AA)/GO Composite for Efficient Removal of Organic Dyes: A Step towards Water Treatment by Hiba Alnasery, Abdolhossein Naseri, Layth Jasim, Sanaz Sajedi-Amin

    Published 2024-10-01
    “…Additionally, the thermodynamic behavior of the studied dyes removal on SA-g-p(FA-AA) /GO were calculated.…”
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    Article
  10. 930

    Carbon Dioxide Turbine Expander Plant Producing Liquid and Gaseous Carbon Dioxide by A. V. Ovsyannik

    Published 2019-02-01
    “…The main elements of the plant are a heating unit, a turbodetander unit and a carbon dioxide unit for the production of cold, liquid and gaseous carbon dioxide. A thermodynamic calculation and a brief exergy analysis of the plant were carried out. …”
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    Article
  11. 931

    Removal of Some Heavy Metal Cations from Aqueous Solution by Adsorption onto Natural Kaolin by H. Ceylan, T. Şahan, R. Gürkan, Ş. Kubilay

    Published 2005-09-01
    “…The equilibrium studies demonstrated that the selectivity of the ions followed the sequence Zn(II) > Cu(II) > Co(II) at pH 7.0. Calculation of thermodynamic parameters such as the standard enthalpy (ΔH 0 ), Gibbs free energy (ΔG 0 ) and entropy (ΔS 0 ) showed that the adsorption of the heavy metal ions studied onto kaolin was an endothermic process which was favoured at higher temperatures. …”
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    Article
  12. 932

    Methylene Blue Adsorption BY UV-Treated Graphene Oxide Nanoparticles (UV/n-GO): Modeling and Optimization Using Response Surface Methodology and Artificial Neural Networks by M. Venkata Ratnam, Manikkampatti Palanisamy Murugesan, Srikanth Komarabathina, S. Samraj, Mohammedsani Abdulkadir, Muktar Abdu Kalifa

    Published 2022-01-01
    “…According to correlation coefficients, the order of adsorption isotherm models is Redlich–Peterson > Temkin > Langmuir > Freundlich. Thermodynamic investigations show that MB adsorption was both spontaneous and endothermic.…”
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  13. 933

    Climatic Cycles and Gradients of the El Niño Core Region in North Peru by Rütger Rollenbeck, Fabian Bayer, Jannes Münchow, Michael Richter, Rodolfo Rodriguez, Nestor Atarama

    Published 2015-01-01
    “…At the coast, a low-level jet works as a thermodynamic energy sink, suppressing deep convection and supporting the aridity. …”
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    Article
  14. 934

    An Effective Biomass for the Adsorption of Methylene Blue Dye and Treatment of River Water by Shaziya H. Siddiqui, Mohammad Kashif Uddin, Runit Isaac, Obaid F. Aldosari

    Published 2022-01-01
    “…It is evident from the thermodynamic data that the adsorption is exothermic. …”
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    Article
  15. 935

    Study on the Adsorption Performance and Adsorption Mechanism of Graphene Oxide by Red Sandstone in Aqueous Solution by Na Li, WenHao Dai, HaiBo Kang, Beifeng Lv, Ping Jiang, Wei Wang

    Published 2022-01-01
    “…The adsorption isotherm model fits the Langmuir model. The adsorption thermodynamic experiments and fitting results show that the reaction is endothermic. …”
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    Article
  16. 936

    Separation of Spherical Nanosilica from Agricultural Wastes in Vietnam via Ultrasonic-Assisted Precipitation and Application for Effective Removal of Methylene Blue from Aqueous So... by Nguyen Duc Vu Quyen, Tran Ngoc Tuyen, Dinh Quang Khieu, Ho Van Minh Hai, Dang Xuan Tin, Bui Thi Hoang Diem, Le Van Thanh Son, Nguyen Thi Kieu Diem, Le Thi Nguyet, Bui Thi Thuy, Ho Thi Thuy Dung

    Published 2023-01-01
    “…Pseudo-second-order kinetic model and Weber–Morris intraparticle diffusion model well describe the chemical nature of the adsorption. The thermodynamic parameters of the reaction are determined based on the Van’t Hoff equation.…”
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    Article
  17. 937

    A coupling study of scavenging effect on pollutant formation and unclean combustion of a linear vibration engine by Liu Chunzhi, Zicheng Yuan, Jiangchuan Lu, Chenheng Yuan

    Published 2025-01-01
    “…This paper develops a systematical dynamic-thermodynamic model that mutually transfers the interaction parameters between combustion model, pollution model and the insight the of a linear diesel engine, and an iterative calculation schedule is proposed to solute the systematical model for the simulation of scavenging pressure effect on combustion and pollution. …”
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    Article
  18. 938

    Protection performance of Azadirachta indica leaf essential oil on corrosion of plain carbon steel in weak HCl and NH4Cl by Tolulope Loto Roland, Akpanyung Kingsley

    Published 2025-01-01
    “…Standard error for ADI performance within 0.5 M HCl were extreme, suggesting thermodynamic stability of inhibitor molecules. Standard error were lower in 1 M HCl, 3.74 M NH4Cl, and 5.61 M NH4Cl. …”
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    Article
  19. 939

    Preparation and Characterization of Chitosan/Bentonite Composites for Cr (VI) Removal from Aqueous Solutions by Junjie Jia, Yanjun Liu, Shujuan Sun

    Published 2021-01-01
    “…CSBT follows a pseudosecond-order kinetic model, and within 1.5 h, adsorption was observed to reach equilibrium. The calculated thermodynamic functions clarified that the adsorption process was exothermic and spontaneous below 312.60 K. …”
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    Article
  20. 940

    Physiochemical Restrictions of Mineral Zoning of Sediment-Hosted Stratiform Copper Deposit in SW China by Yan Zhang, Runsheng Han, Shuming Wen, Pingtang Wei

    Published 2018-01-01
    “…We studied the mineral zoning in detail using a thermodynamic phase diagram method, such as log⁡fO2-log⁡fS2, pH-log⁡fO2, and pH-Eh, and discussed the constraints on the order of the minerals precipitation under different physiochemical conditions. …”
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    Article