Article
Engineering, Mechanical
Sayooj Aby Jose, R. Raja, J. Alzabut, G. Rajchakit, Jinde Cao, Valentina E. Balas
Summary: This research examines a deterministic mathematical model to study the prevalence of corruption in society, based on the assumption that corruption spreads like an infectious disease. The equilibria of the model are identified and their stability is analyzed. The Corruption Transmission Generation Number (R-C) is estimated using the next generation matrix technique at the corruption free equilibrium points (CFEP). The study finds that CFEP is stable when R-C < 1, indicating the absence of corruption. However, when R-C > 1, the existence of corrupted individuals in society is indicated by the corruption persistence equilibrium points. A forward bifurcation can occur when R-C = 1. Further investigation is conducted to determine the worldwide asymptotic stability of CFEP. The objective of this research is to identify key parameters for future studies, aiming to inform policymakers in maximizing the effectiveness of preventive and therapeutic efforts.
NONLINEAR DYNAMICS
(2022)
Article
Chemistry, Multidisciplinary
Jeong-Chan Lee, Hyeji Seo, Minho Lee, Dongjae Kim, Hyeon Seok Lee, Hyunmin Park, Nathaniel Ball, Junhee Woo, Su Yeong Kim, Jaewook Nam, Steve Park
Summary: A new technique based on 3D geometry model of the meniscus has been proposed to analyze the thin-film solidification process during solution shearing, which elucidates the dendritic growth mechanism of small molecule organic semiconductor and reveals the important relationship between the meniscus and dendrite formation.
ADVANCED MATERIALS
(2022)
Article
Acoustics
Xuwei Zhong, Chengdu Huang, Lishan Chen, Qinghong Yang, Yongchun Huang
Summary: The effect of ultrasound on the kinetics of anti-solvent crystallization of sucrose was investigated. Ultrasound accelerated the crystallization process, reduced the average crystal size, and improved the nucleation rate.
ULTRASONICS SONOCHEMISTRY
(2022)
Article
Food Science & Technology
Yanet Irigoiti, Diego K. Yamul, Alba S. Navarro
Summary: This study successfully encapsulated a propolis ethanolic extract in a sucrose matrix through co-crystallization to eliminate alcohol, resulting in propolis powder with suitable technological properties and high antioxidant activity for food applications. The co-crystallized powders showed good stability of polyphenols and flavonoids during storage, making co-crystallization a cost-effective method for protecting bioactive compounds in propolis.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
H. Hassani, J. A. Tenreiro Machado, Z. Avazzadeh, E. Safari, S. Mehrabi
Summary: This article analyzes a fractional order breast cancer competition model under the Caputo fractional derivative, proposing a new set of basis functions and an optimization method for solving the model. Numerical experiments demonstrate the high accuracy, practicality, and computational efficiency of the devised technique.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Applied
Adrienne L. Voelker, Collin Felten, Lynne S. Taylor, Lisa J. Mauer
Summary: Polyphenols have been found to delay sucrose crystallization in food products, with structure playing a key role in their efficacy. Glycosylated polyphenols are more effective than aglycones, and those with (2,1) glycosidic linkages are more effective than those with (6,1) linkages. Bulk food ingredients are the most effective at delaying sucrose crystallization.
Article
Mathematics, Interdisciplinary Applications
Mohammed Subhi Hadi, Bulent Bilgehan
Summary: A fractional-order model of COVID-19 is constructed, studying the effects of successive optimal control policies in different susceptible classes. The results showed that introducing the three control measures together causes a drastic decrease in the infected population.
FRACTAL AND FRACTIONAL
(2022)
Article
Materials Science, Multidisciplinary
Tigabu Kasia Ayele, Emile Franc Doungmo Goufo, Stella Mugisha
Summary: In this paper, a HIV/AIDS mathematical model was developed with important compartments such as aware/unaware susceptible individuals, undiagnosed HIV infections, diagnosed HIV infectious with/without AIDS symptom, and treated patients. The model analyzed the impact of media campaign on awareness rates, and optimized treatment strategies.
RESULTS IN PHYSICS
(2021)
Article
Thermodynamics
Wuyan Li, Jue Wang, Wenxing Shi, Jun Lu
Summary: A high-efficiency solution for an exhaust air heat pump was developed and numerically studied in this research. The solution utilizes an indirect evaporative cooler and an evaporative condenser for stepped energy recovery, significantly improving the cooling efficiency of the system.
Article
Physics, Multidisciplinary
Aatif Ali, Quaid Iqbal, Joshua Kiddy K. Asamoah, Saeed Islam
Summary: In this paper, a new Zika virus model is formulated based on both mosquito and human transmission, as well as human awareness. The stability analysis proves that the model is globally and locally asymptotically stable. A sensitivity analysis is conducted to identify the most sensitive parameter, indicating the per biting probability of the susceptible mosquito with the infected human. Additionally, a Zika control model with three controls is developed to efficiently eliminate the infection.
EUROPEAN PHYSICAL JOURNAL PLUS
(2022)
Article
Mathematics, Applied
Victoria B. Bekezhanova, Olga N. Goncharova
Summary: This study focuses on the exact solution of the thermoconcentration convection equations with group origin under the Oberbeck-Boussinesq approximation. The applicability of this solution in describing steady-state convective flows of liquid and co-current gas flux under conditions of inhomogeneous evaporation is discussed. Analytical algorithms are proposed to obtain the required functions for different types of boundary conditions. The influence of external thermal load and boundary thermal conditions on velocity and temperature fields, evaporation mass flow rate, and vapor content in the gas layer are investigated using the example of the HFE-7100-nitrogen system. The solution accurately predicts the characteristics of convective regimes in the two-phase system and is compared with the case of uniform evaporation.
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
(2023)
Article
Mathematics, Applied
Davin Lunz, J. Frederic Bonnas
Summary: Motivated by recent laboratory experiments, this study investigates microbial populations with light-inducible genetic differentiation for bioproduction. By deriving a hierarchy of models and reducing their complexity, we establish connections between different classes of models. Furthermore, we explore the optimal control of the reduced-order system and find different control structures within different parameter regions.
SIAM JOURNAL ON APPLIED MATHEMATICS
(2023)
Article
Engineering, Multidisciplinary
Ruiyang Liu, Shun Wang, Xuewen Tan, Xiufen Zou
Summary: Adaptive therapy is a new therapeutic strategy that dynamically regulates cancer cells. In this study, a competitive model between drug-sensitive and drug-resistant cancer cells is established to validate the feasibility of adaptive therapy. A dynamic optimization problem is proposed to determine the therapeutic schedule for prostate cancer, and the results demonstrate that the proposed therapeutic framework is superior to current adaptive therapeutic schedules.
APPLIED MATHEMATICAL MODELLING
(2022)
Article
Biochemistry & Molecular Biology
N. Afzal Ali, Kshirod Kumar Dash, Vinay Kumar Pandey, Anjali Tripathi, Shaikh Ayaz Mukarram, Endre Harsanyi, Bela Kovacs
Summary: This study encapsulated Poniol fruit ethanolic extract with sucrose matrix through co-crystallization process and analyzed the physicochemical properties of the co-crystalized product. The results showed that the co-crystallized product had good entrapment yield and retained the phenolic and antioxidant properties. It also had desirable flowability and bulk density, lower hygroscopicity, and solubilization time compared to the recrystallized sample.
Article
Polymer Science
Beata Misztal-Faraj, Marcelina Ciupak, Ryszard Pecherski, Leszek Jarecki
Summary: The study analyzes the development of polymorphic composition in the isothermal crystallization process of unstressed amorphous PLLA, and predicts the relationship between the transformation degree of individual polymorphs and crystallization temperature as well as the overall transformation degree.
Article
Engineering, Chemical
S. M. Petrov, N. M. Podgornova, K. S. Petrov, V. I. Ryazhskih
JOURNAL OF FOOD ENGINEERING
(2019)
Article
Engineering, Chemical
Denis Arapov, Vladimir A. Kuritsyn, Sergey M. Petrov, Nadezhda M. Podgornova
Summary: This article presents a nonlinear probabilistic mathematical model for the dissolution rate of sucrose crystals in multicomponent solutions, based on experimental data. The model consists of four components that describe sucrose molecule diffusion, reactions with water and non-sugars, and detachment from crystal surfaces. Using a genetic algorithm and Hooke-Jeeves method, the model's error in modeling the dissolution rate relative to experimental data is +/- 7.8%. The model can be used for assessing sugar loss in crystallization, controlling sugar crystal melting, and other processes.
JOURNAL OF FOOD ENGINEERING
(2022)
Article
Engineering, Chemical
V. I. Tuzhilkin, S. M. Petrov, N. M. Podgornova, N. D. Lukin
Summary: The study aims to simulate the process of isobaric evaporative crystallization of sucrose and propose a three-stage crystallization technology for semi-continuous boiling of massecuites. Through computer simulation and experimental verification, optimal parameters were determined to enhance the efficiency of crystallization.
JOURNAL OF FOOD ENGINEERING
(2024)
Article
Computer Science, Theory & Methods
Valery Karpov, Nikolay M. Portnov, Sergey M. Petrov, Igor A. Nikitin, Nadezhda M. Podgornova, Yury Sidorenko, Igor Zavalishin, Mikhail Yu Sidorenko, Sergey Shterman
INTERNATIONAL JOURNAL OF ADVANCED COMPUTER SCIENCE AND APPLICATIONS
(2019)
Article
Agronomy
SM Petrov, YA Zagorulko
INTERNATIONAL SUGAR JOURNAL
(2005)
Article
Engineering, Chemical
R. Diaz-Alvarez, S. Carpentieri, G. Ferrari, G. Pataro, L. Segura-Ponce
Summary: This study evaluated the effect of high voltage electrical discharge (HVED) on the freeze-drying process of blueberries, and found that HVED pretreatment can enhance freeze-drying rates and improve the quality of the final product.
JOURNAL OF FOOD ENGINEERING
(2024)
Article
Engineering, Chemical
V. I. Tuzhilkin, S. M. Petrov, N. M. Podgornova, N. D. Lukin
Summary: The study aims to simulate the process of isobaric evaporative crystallization of sucrose and propose a three-stage crystallization technology for semi-continuous boiling of massecuites. Through computer simulation and experimental verification, optimal parameters were determined to enhance the efficiency of crystallization.
JOURNAL OF FOOD ENGINEERING
(2024)
Article
Engineering, Chemical
Seong Hwan Yu, Do-Yeong Kim, Youjin Baek, Hyeon Gyu Lee
Summary: This study investigated the effects of nanoencapsulation and gel incorporation on the antioxidant activity, stability, and release profile of curcumin. The results showed that CUR-loaded nanoparticles and CUR NPs-filled gelatin-genipin gels had significantly higher antioxidant activity, stability, and in vitro release profile compared to free CUR. The GL/GP-CUR NPs exhibited the highest antioxidant activity and increased stability, while the CUR NPs had a faster release rate. These findings suggest that GL/GP-CUR NPs have potential as an effective delivery system for CUR in the food industry.
JOURNAL OF FOOD ENGINEERING
(2024)
Article
Engineering, Chemical
Linlin He, Shihong Hu, Gang Zhang, Xiao Wang, Yanna Zhao, Qingpeng Wang, Min Liu, Zhengping Wang, Prakash Sangeeta, Zhuang Ding
Summary: This study developed solid microcapsules containing co-loaded vitamin B12 and D3 using a W1/O/W2 emulsions and spray-drying method. The addition of polysaccharides as co-encapsulants improved the morphological characteristics, encapsulation efficiency, storage stability, and gastrointestinal simulation of the microcapsules. The electrostatic bonding with chitosan and multilayer protection from the W1/O/W2 structure contributed to the high encapsulation efficiency of vitB12. Incorporating polysaccharides into W2 enhanced the particle integrity of the dried powders and improved the retention rate and encapsulation efficiency of vitamins. Sodium carboxymethylcellulose showed the best protection for vitB12 and lower degradation rates for vitD3, while sodium alginate exhibited controlled release and the highest cumulative release under simulated gastric and intestinal conditions, respectively.
JOURNAL OF FOOD ENGINEERING
(2024)
Article
Engineering, Chemical
Ehsan Nasrnia, Morteza Sadeghi, Ali Raeisi Isa-Abadi, Seyed Ahmad Mireei
Summary: A novel mathematical model considering the concept of glass transition was developed for rice intermittent drying process. The model utilized the real 3D body-fitted geometry of rice kernel and was validated through experiments. The glass transition behavior of the rice kernels and the distributions of temperature and moisture at each stage were analyzed.
JOURNAL OF FOOD ENGINEERING
(2024)
Article
Engineering, Chemical
Haoran Pang, Jiaqing Xie, Xiaoyu Meng, Ruqian Sun, Jun Chen, Chengli Guo, Tianfeng Zhou
Summary: A portable organophosphorus pesticide detection device equipped with microfluidic and luminol composite nanofibers was developed in this study. By optimizing the microfluidic chip design and the mass fraction of luminol particles, efficient detection of pesticide residues was achieved.
JOURNAL OF FOOD ENGINEERING
(2024)
Article
Engineering, Chemical
J. Munoz-Postigo, E. M. Valero, M. A. Martinez-Domingo, F. J. Lara, J. L. Nieves, J. Romero, J. Hernandez-Andres
Summary: This paper presents a workflow for classifying the maturity of bell peppers using hyperspectral imaging and machine learning. The approach utilizes spectral reflectance to determine the number of maturity stages and employs optimized bands for accurate classification, achieving satisfactory results.
JOURNAL OF FOOD ENGINEERING
(2024)
Article
Engineering, Chemical
Artem Skrypnik, Sascha Heitkam, Christoph Gerstenberg, Eric Morelle, Christopher McHardy, Cornelia Rauh
Summary: The rheological properties of food play a crucial role in the physical interaction between food and the mouth during chewing and swallowing. This study focuses on the compression of liquid foams to simulate the idealized swallowing process and investigates the flow conditions and their impact on foam properties. The results provide insights into the haptic perception in the mouth during swallowing.
JOURNAL OF FOOD ENGINEERING
(2024)
Article
Engineering, Chemical
Chaojie Mo, Luciano Navarini, Furio Suggi Liverani, Marco Ellero
Summary: This study investigates the effects of swelling on espresso extraction by incorporating a particle-level swelling model into a one-dimensional bed-level extraction model. The results show that swelling only slightly affects the yield and strength at a fixed flow rate, but considerably enhances the strength at a fixed pressure drop. The finer the coffee particles, the more pronounced the enhancement. It is suggested that better control of yield and strength can be achieved by fixing the flow rate in an espresso machine. It is also indicated that numerical extraction simulations, when properly incorporated with relevant physical effects, can be used to predict the extraction kinetics and guide the design and production of espresso machines.
JOURNAL OF FOOD ENGINEERING
(2024)
Article
Engineering, Chemical
Yang Zhong, Yi Lin, Mingxing Yang, Xiaodan Zeng, Dayu Liu, Wenlong Liu, Weijun Chen
Summary: Methyltetrahydrophthalic anhydride (MeTHPA) esterified corn starches (MeCS) with degrees of substitution (DS) ranging from 0.0066 to 0.072 were prepared and found to be effective in stabilizing Pickering emulsion. The modification of MeTHPA damaged the crystal structure of corn starch, roughened its surface structure, and increased its contact angle, which were positively correlated with the DS of MeCS. The particle size of MeCS increased and then decreased with increasing DS, with the smallest size observed for MeCS with a DS of 0.072. The Pickering emulsions stabilized by MeCS with a DS of 0.072 exhibited better stability compared to those stabilized by MeCS with lower DS, which can be attributed to their smaller particle size and higher viscosity. MeCS with a DS of 0.072, at a concentration of 3% (w/v), could maintain emulsion stability even after 50 days of storage. These findings suggest that MeCS with appropriate DS and concentration levels could be effective particle stabilizers for Pickering emulsions.
JOURNAL OF FOOD ENGINEERING
(2024)
Article
Engineering, Chemical
Shubhajit Sarkhel, Anupam Roy
Summary: This study developed a vacuum impregnation technique to enhance the micronutrient content and bioavailability in lentils and reduce phytic acid. The results showed that vacuum impregnation led to higher migration of micronutrients and significantly reduced phytic acid without impacting the quality characteristics. The developed process achieved a substantial reduction in phytic acid-to-mineral molar ratio.
JOURNAL OF FOOD ENGINEERING
(2024)
Article
Engineering, Chemical
L. J. H. Sweers, C. M. M. Lakemond, V. Fogliano, R. M. Boom, M. Mishyna, J. K. Keppler
Summary: This study investigated the use of microfiltration as a gentle processing technique for decontamination and fractionation of edible insects. The results showed that microfiltration effectively removed contaminants and produced distinct fractions with improved properties.
JOURNAL OF FOOD ENGINEERING
(2024)
Article
Engineering, Chemical
Wanfeng Sun, Yu Sun, Yu Wang, Haomeng He
Summary: In this study, a prediction model for the pelleting performance of multi-component mixed powders was proposed, and it was validated by conducting single pelleting experiments on mixtures of different edible powders.
JOURNAL OF FOOD ENGINEERING
(2024)
Article
Engineering, Chemical
Saowaluk Taechutrakul, Thananchai Piroonpan, Wanvimol Pasanphan
Summary: This original research developed active polylactic acid (PLA) film strips functionalized with gallic acid (GA) to extend the shelf-life of bananas. The PLA/mPLA-GA film strips exhibited a homogeneous matrix with improved mechanical properties and showed outstanding antioxidant and oxygen scavenging effects. The results suggest that PLA/mPLA-GA film strips show promise as an active bioplastic for extending the shelf-life of bananas and other fruits.
JOURNAL OF FOOD ENGINEERING
(2024)
Article
Engineering, Chemical
Julien Dupas, Florent Baldeweck, Vincent Meunier
Summary: The flow performance of food powders is crucial in product development, as it can affect the dosing and filling processes. This study investigates the influence of various parameters on the flowability of carbohydrate powders, such as particle size and moisture content.
JOURNAL OF FOOD ENGINEERING
(2024)
