Showing 981 - 1,000 results of 1,516 for search '"thermodynamic"', query time: 0.08s Refine Results
  1. 981

    Pb (II) Recovery by Modified Tuffite: Adsorption, Desorption, and Kinetic Study by Beyhan Kocadagistan, Kubra Oksuz

    Published 2022-01-01
    “…According to the regeneration studies, the maximum desorption efficiency was 97.8%. The thermodynamic equilibrium coefficients obtained at different temperatures and ΔGo, ΔHo, and ΔSo values were observed as -21.4, 46.4, and 163 kJ/mol, respectively. …”
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    Article
  2. 982

    Phenol Red Adsorption from Aqueous Solution on the Modified Bentonite by Nguyen Le My Linh, Tran Duong, Hoang Van Duc, Nguyen Thi Anh Thu, Pham Khac Lieu, Nguyen Van Hung, Le Thi Hoa, Dinh Quang Khieu

    Published 2020-01-01
    “…The highest monolayer adsorption capacity of phenol red at 30°C derived from the Langmuir equation was 166.7 mg·g−1, 125.0 mg·g−1, and 100.0 mg·g−1 for CTAB‒bentonite, Al‒CTAB‒bentonite, and Fe‒CTAB‒bentonite, respectively. Different thermodynamic parameters were calculated, and it was concluded that the adsorption was spontaneous (∆G° < 0) and endothermic (∆H° > 0), with increased entropy (∆S° > 0) in all the investigated temperature ranges.…”
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  3. 983

    The Adsorption of Copper, Lead Metal Ions, and Methylene Blue Dye from Aqueous Solution by Pure and Treated Fennel Seeds by Ntandokazi Mabungela, Ntaote David Shooto, Fanyana Mtunzi, Eliazer Bobby Naidoo

    Published 2022-01-01
    “…It was found that the uptake processes of MB dye onto all adsorbents fitted Freundlich while both cations were described by Langmuir model. The thermodynamic parameters ΔHo and ΔGo indicated the endothermic nature and spontaneity of the processes, respectively.…”
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  4. 984

    Analytical study of steady state axisymmetric stagnation-point gold–blood Casson nanofluid through a rotating stretchable disk by Usman Ali, Hamid Khan, Waris Khan, Emad E. Mahmoud, Marouan Kouki, Jabr Aljedani, Hakim AL Garalleh

    Published 2025-01-01
    “…Nanofluids find extensive applications in enhancing the thermodynamic efficiency of thermal systems across various domains of engineering and scientific disciplines. …”
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    Article
  5. 985

    The mechanism of sulfidation roasting pretreatment of cerussite for enhanced flotation behavior by Yu Miao, Wanting Yang, Xuemin Ding, Jiarui Min, Bao Guo, Xiangxiang Chen, Chun Yu

    Published 2025-03-01
    “…In this paper, we firstly demonstrate that pyrite(FeS2) can provide a sulfurous atmosphere to convert cerussite(PbCO3) into galena(PbS) through thermodynamic calculations. Then, the reaction conditions were optimized through the roasting sulfidation conditions such as the contact mode, time and temperature of the reaction, and the sulfidation mechanism of cerussite at high temperature roasting was studied by using XRF, XRD, SEM and XPS. …”
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  6. 986

    Effects of Li2O on Structure and Viscosity of CaO-Al2O3-Based Mold Fluxes by Lifeng Chen, Kun Liu, Peng Han, Bin Yang, Lianghua Feng

    Published 2021-01-01
    “…A systematic analysis of the structure and thermodynamics on CaO-Al2O3-based mold fluxes is carried out, and it is well known that the viscosity of mold fluxes is related to the structure. …”
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    Article
  7. 987

    New RELAP5-3D Lead and LBE Thermophysical Properties Implementation for Safety Analysis of Gen IV Reactors by P. Balestra, F. Giannetti, G. Caruso, A. Alfonsi

    Published 2016-01-01
    “…The latest versions of RELAP5-3D© code allow the simulation of thermodynamic system, using different type of working fluids, that is, liquid metals, molten salt, diathermic oil, and so forth, thanks to the ATHENA code integration. …”
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    Article
  8. 988

    Environmentally Friendly Mesoporous Nanocomposite Prepared from Al-Dross Waste with Remarkable Adsorption Ability for Toxic Anionic Dye by Inas A. Ahmed, Najlaa S. Al-Radadi, H. S. Hussein, Ahmed H. Ragab

    Published 2019-01-01
    “…The sorption models, the isotherms, and the thermodynamic parameters ΔHo, ΔGo, and ΔSo were evaluated. …”
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    Article
  9. 989

    Experimental Investigation of a Multicylinder Unmodified Diesel Engine Performance, Emission, and Heat Loss Characteristics Using Different Biodiesel Blends: Rollout of B10 in Mala... by M. J. Abedin, H. H. Masjuki, M. A. Kalam, M. Varman, M. I. Arbab, I. M. Rizwanul Fattah, B. M. Masum

    Published 2014-01-01
    “…Energy balance analysis allows the designer to appraise the internal energy variations of a thermodynamic system as a function of ‘‘energy flows’’ across the control volume as work or heat and also the enthalpies associated with the energy flows which are passing through these boundaries. …”
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  10. 990

    Study of characteristics of vortex tube by V. I. Kuznetsov, V. V. Makarov, A. S. Gritsay

    Published 2022-06-01
    “…The difference of thermodynamic temperatures when heat is supplied from the periphery to the axis is taken into account. …”
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  11. 991

    Preparation of high quality ferrovanadium nitride by carbothermal reduction nitridation process by Wu Y.D., Zhang G.H., Chou K.C.

    Published 2017-01-01
    “…From the results of X-ray diffraction (XRD) and thermodynamic calculations, phase evolution sequence of V2O5 can be obtained as: V2O5→VO2→V2O3→V(C, N, O). …”
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  12. 992

    Adsorption of Copper (II) by magnesium hydroxide modified shell activated carbon by Kan Jin-tao, Tan Zheng-chang, Zhang Yu-feng

    Published 2024-05-01
    “…The analysis results of adsorption isotherm model, adsorption kinetics model, and thermodynamic indicate that the adsorption of Copper (II) by both HAAC and Mg-HAAC was monolayer chemical adsorption with an exothermic spontaneous process. …”
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    Article
  13. 993

    Adsorption of Cu (II) and Cd (II) from Wastewater by Sodium Alginate Modified Materials by Yingying Zhao, Linchuan Zhan, Zhongjun Xue, Kianpoor Kalkhajeh Yusef, Hongxiang Hu, Mengjun Wu

    Published 2020-01-01
    “…., kinetic model, isothermal adsorption model, and thermodynamic model, were used to fit the experimental data. …”
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  14. 994

    Prediction model for spontaneous combustion temperature of coal based on PSO-XGBoost algorithm by Hui Zhuo, Tongren Li, Wei Lu, Qingsong Zhang, Lingyun Ji, Jinliang Li

    Published 2025-01-01
    “…Abstract The construction of a predictive model that accurately reflects the spontaneous combustion temperature of coal in goaf is fundamental to monitoring and early warning systems for thermodynamic disasters, including coal spontaneous combustion and gas explosions. …”
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  15. 995

    Mathematical Modeling of Moisture Sorption Isotherms and Determination of Isosteric Heats of Sorption of Ziziphus Leaves by Amel Saad, Boumediene Touati, Belkacem Draoui, Boufeldja Tabti, Asma Abdenebi, Said Benaceur

    Published 2014-01-01
    “…The net isosteric heats of desorption and adsorption of Ziziphus spina-christi leaves were calculated by applying the Clausius-Clapeyron equation to the sorption isotherms and an expression for predicting these thermodynamic properties was given.…”
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  16. 996

    Exchange Character of Caesium Ions onto Zirconium Tungstate by R.R. Sheha, S.H. El-Khouly

    Published 2011-02-01
    “…Various parameters such as the effective diffusion coefficient under different conditions and the activation energy were determined from the graphical representation of the linearized form of the Arrhenius equation. Thermodynamic parameters such as ΔG 0 , ΔH 0 and ΔS 0 were also calculated. …”
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  17. 997

    Role of Focusing Distance in Picosecond Laser-Induced Cu Plasma Spectra by Linyu Chen, Hu Deng, Zhixiang Wu, Zhonggang Xiong, Jin Guo, Quancheng Liu, Akwasi Danso Samuel, Liping Shang

    Published 2022-01-01
    “…These factors are employed to analyze the spectral intensity, plasma temperature, and electron density in the local thermodynamic equilibrium (LTE) and optically thin condition. …”
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  18. 998

    Prediction of Europium Retention in Perovskite: Potential Candidates for an Engineering Barrier in the Disposal of Radioactive Waste by Huemantzin B. Ortiz-Oliveros, Rosa Ma. Flores Espinosa, Pedro Ávila-Pérez, Daniel Cruz-Gonzalez, Noureddine Ouerfelli

    Published 2021-01-01
    “…In this work, different pseudo-order and thermodynamic models were studied to achieve the prediction of the sorption of Eu3+ (chemical analogous for actinides) in tausonite. …”
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  19. 999

    Characterization of Precipitation in Al-Li Alloy AA2195 by means of Atom Probe Tomography and Transmission Electron Microscopy by Muna Khushaim, Torben Boll, Judith Seibert, Ferdinand Haider, Talaat Al-Kassab

    Published 2015-01-01
    “…The results show rather a strong hint for a true lower Li and Cu contents, hence supporting reasonably the hypothesis that the real chemical composition for the thin T1 platelet in the T8 tempering condition differs from the equilibrium composition of the thermodynamic stable bulk phase.…”
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  20. 1000

    Gold(III) Ions Sorption on Amberlite XAD-16 Impregnated with TBP After Leaching Smart Card Chips by Karolina Zinkowska, Zbigniew Hubicki, Grzegorz Wójcik

    Published 2025-01-01
    “…The Langmuir isotherm was the best-fit model for the experimental results. Thermodynamic studies proved that the investigated sorption process is spontaneous and exothermic. …”
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    Article