Abhishek Dasore^a,*, Ramakrishna Konijeti^b , Naveen Puppala^c

Frontiers in Heat and Mass Transfer, Vol.13, pp. 1-7, 2019, DOI:10.5098/hmt.13.21

Abstract The influence of air temperature on drying kinetics of radish slices in a bench scale convective tray dryer was examined experimentally and suitable drying model was developed. The experiments of drying of radish slices were conducted at 40, 50 and 60 °C with an air velocity of 2 More >

Abhishek Dasore^a,* , Tarun Polavarapu^b , Ramakrishna Konijeti^c , Naveen Puppala^d ,

Frontiers in Heat and Mass Transfer, Vol.14, pp. 1-8, 2020, DOI:10.5098/hmt.14.23

Abstract The effect of air temperature on drying kinetics of red beetroot slices was investigated experimentally in a cabinet tray dryer. Drying was carried out at 70, 75, 80, and 85 ° More >

Ramzy S. Hamied¹, Zaidoon M. Shakor^2,*, Anfal H. Sadeiq¹, Adnan A. Abdul Razak², Ammar T. Khadim³

Energy Engineering, Vol.120, No.6, pp. 1371-1386, 2023, DOI:10.32604/ee.2023.028441

Abstract Recently, the isomerization of light naphtha has been increasingly significant in assisting refiners in meeting sternness specifications for gasoline. Isomerization process provides refiners with the advantage of reducing sulfur, olefin, and benzene in the gasoline basin without significantly victimizing the octane. The mathematical modeling of a chemical reaction is a critical tool due to it can used to optimize the experimental data to estimate the optimum operating conditions for industrial reactors. This paper describes light naphtha isomerization reactions over a Pt/Al₂O₃-Cl catalyst at the Al-Dura Oil Refinery (Baghdad, Iraq) using a newly developed universal mathematical model. The proposed kinetic model… More >

Muath Awadalla^1,*, Kinda Abuasbeh¹, Yves Yannick Yameni Noupoue², Mohammed S. Abdo³

CMES-Computer Modeling in Engineering & Sciences, Vol.135, No.3, pp. 2767-2785, 2023, DOI:10.32604/cmes.2023.024036

Abstract This study focuses on the dynamics of drug concentration in the blood. In general, the concentration level of a drug in the blood is evaluated by the mean of an ordinary and first-order differential equation. More precisely, it is solved through an initial value problem. We proposed a new modeling technique for studying drug concentration in blood dynamics. This technique is based on two fractional derivatives, namely, Caputo and Caputo-Fabrizio derivatives. We first provided comprehensive and detailed proof of the existence of at least one solution to the problem; we later proved the uniqueness of the existing solution. The proof… More >

Jing Xu^1,2,*, Yuquan Yao³, Kai Zhang¹, Jiangang Yang², Jie Gao², Jian Zhou²

Journal of Renewable Materials, Vol.11, No.3, pp. 1339-1351, 2023, DOI:10.32604/jrm.2022.023270

Abstract This study focuses on the effect of oils on rheology and oxidation aging of Styrene-Butadiene-Styrene modified asphalt (SBSMA) in the long term, after reducing one low-temperature Performance Grade (PG) of SBSMA by incorporating oils. Two oils, including corn-based bio-oil and re-refined engine oil bottom (REOB), were selected to enhance the low-temperature performance of SBSMA. All samples were subjected to Rolling Thin Film Oven (RTFO) aging and 20-h as well as 40-h Pressure Aging Vessel (PAV20 and PAV40) aging, prior to multiple stress creep recovery (MSCR), frequency sweep and Flourier transform infrared spectroscopy (FTIR) scanning. A good high-temperature performance of oil/SBS… More >

S.K. Pankaj¹, C. Bueno-Ferrer¹, N.N. Misra¹, L. O’Neill², A. Jiménez³, P. Bourke¹, P.J. Cullen^1,4,*

Journal of Renewable Materials, Vol.2, No.1, pp. 77-84, 2014, DOI:10.7569/JRM.2013.634129

Abstract The effects of dielectric barrier discharge plasma treatment on zein fi lm containing thymol as an active ingredient were evaluated. The plasma discharge was optically characterized to identify the reactive species. A signifi cant increase in the fi lm roughness (p < 0.05) was observed due to the etching effect of DBD plasma, which was correlated with the increase in the diffusion rate of thymol in the food simulant. The diffusion of thymol from the zein fi lm was measured in aqueous solution. The kinetics of thymol release followed the Fick’s law of diffusion as shown by the high correlation… More >

Miguel Ángel Ramírez¹, Luis Alfonso^†, Patricia González², Juan Reinerio Fagundo², Margaret Suarez³, Clara Melian³, Tania Rodríguez¹, Carlos Peniche^4,*

Journal of Renewable Materials, Vol.3, No.1, pp. 73-80, 2015, DOI:10.7569/JRM.2014.634116

Abstract The demineralization kinetics of deproteinized lobster shells using CO₂ were studied. Demineralization reaction proceeds until the concentration of Ca⁺² in solution reaches an equilibrium value. The introduction of a cation exchange resin (cationite), in an open system for CO₂ , allows replacement of the solution Ca²⁺ ions by Na⁺ ions, whereby the equilibrium shifts and an effective dissolution of the exoskeletons’ calcite is achieved. The mathematical relationships between the conductivity of the solution and the concentrations of major ions, the rate constants and kinetic parameters of the reaction in the absence and presence of the resin were obtained. It was… More >

Huimin Huang¹, Zijun Wu², Zhijian Zhou¹, Qiulin Xu¹, Jie Yan^1,*, Qiaoguang Li^1,*

Journal of Renewable Materials, Vol.11, No.1, pp. 257-272, 2023, DOI:10.32604/jrm.2023.021073

Abstract The low utilization rate of pesticides makes the migration of pesticides in water and soil, which brings great harm to the ecosystem. The development of pesticide carriers with good drug loading capacity and release control ability is an effective method to realize effective utilization of pesticides and reduce pesticide losses. In this work, fosthiazate-stearic acid/expanded perlite sustained-release particles were successfully prepared by vacuum impregnation using expanded perlite (EP) as carrier, fosthiazate (FOS) as model pesticide and stearic acid (SA) as hydrophobic matrix. The structure and morphology of the samples were studied by BET, FT-IR, TGA, XRD, DSC and SEM. The… More > Graphic Abstract

Nursyazwani Mohamad Noor¹, Siti Ainor Mohd Yatim^1,*, Nur Intan Raihana Ruhaiyem²

CMC-Computers, Materials & Continua, Vol.73, No.3, pp. 4923-4934, 2022, DOI:10.32604/cmc.2022.030414

Abstract In this paper, we present a three-compartment of pharmacokinetics model with irreversible rate constants. The compartment consists of arterial blood, tissues and venous blood. Fick’s principle and the law of mass action were used to develop the model based on the diffusion process. The model is modified into a fractional pharmacokinetics model with the sense of Caputo derivative. The existence and uniqueness of the model are investigated and the positivity of the model is established. The behaviour of the model is investigated by implementing numerical algorithms for the numerical solution of the system of fractional differential equations. MATLAB software is… More >

Fengfeng Li¹, Huiyu Zhou^1,2, Datao Xu¹, Julien S. Baker³, Yaodong Gu^1,*

Molecular & Cellular Biomechanics, Vol.19, No.3, pp. 115-129, 2022, DOI:10.32604/mcb.2022.022658

Abstract Research on dance lower extremity joint motion has been limited. Thus, the purpose of this study was to investigate the lower limb biomechanics differences between the side chasse step (SCS) and the bounce step (BS) of the second landing phase in Jive. Thirteen female recreational Latin dancers (Age: 22 ± 2.5 years; Height: 1.65 ± 0.05 m; Weight: 50 ± 4.5 kg; Dance experience: 4 ± 2 years) were involved in the experiment. The same music was used throughout the data collection period. We intended to determine whether these two steps generate different kinematic and kinetic data. The ankle, hip, and knee joint angle, moment, velocity, and… More >