Article
Biophysics
Zeeshan Asghar, Rehman Ali Shah, Nasir Ali
Summary: This article introduces the classification and movement of bacteria, focusing on the simulation method of gliding bacteria movement. By simulating the flow of slime beneath the microorganisms, the flow rate, speed, and propulsion power are calculated, and the flow patterns and velocity are described using graphics and numerical values.
BIOMECHANICS AND MODELING IN MECHANOBIOLOGY
(2022)
Article
Computer Science, Artificial Intelligence
Zeeshan Asghar, Rehman Ali Shah, Nasir Ali
Summary: In this study, we used a complex wavy model to analyze the gliding motion of bacteria on a layer of Carreau-Yasuda fluid. By solving the fourth-order differential equation of the gliding model numerically using two different techniques, i.e., implicit finite difference method (IFDM) and MATLAB's function Bvp-5c, we obtained convergent solutions. The results showed that the speed of bacteria and slime velocity can be controlled by five rheological parameters and two gliding gaits.
Article
Biology
Zeeshan Asghar, Rehman Ali Shah, Wasfi Shatanawi, Nasir Ali
Summary: It is hypothesized that gliding bacteria move by producing waves on their own surface and leave an adhesive slime trail. Slime is a viscoelastic slippery material. A mathematical model is used to examine the locomotion of gliding bacteria over a layer of non-Newtonian slime. The study compares soft and rigid substrate, slip and no-slip boundary conditions, and Newtonian and non-Newtonian slime.
COMPUTERS IN BIOLOGY AND MEDICINE
(2023)
Article
Mechanics
Zeeshan Asghar, Ahmed Elmoasry, Wasfi Shatanawi, Muhammad Asif Gondal
Summary: The study investigates the dynamic role of marine microbes in the aquatic ecosystem and explores the fluid mechanics of gliding organisms near a porous boundary. The effects of surface roughness on the lower substrate are considered, and a non-Newtonian Jeffrey fluid is used to represent the ooze layer between micro-swimmers and the rough substrate. The laminar flow of incompressible slime generated by organism movement is analyzed using Darcy's law and lubrication assumption.
Article
Multidisciplinary Sciences
Corina H. Ramos, Edna Rodriguez-Sanchez, Juan Antonio Arias Del Angel, Alejandro V. Arzola, Mariana Benitez, Ana E. Escalante, Alessio Franci, Giovanni Volpe, Natsuko Rivera-Yoshida
Summary: The topography can alter the single-cell motility and multicellular organization in Myxococcus xanthus, leading to changes in the number, size, and shape of the fruiting bodies, and sometimes even arresting their formation. The cell-particle interaction plays a crucial role in this process as demonstrated by both experimental observations and computational models.
Article
Biology
Zeeshan Asghar, Rehman Ali Shah, Amjad Ali Pasha, Mustafa Mutiur Rahman, Muhammad Waris Saeed Khan
Summary: This study investigates the effect of couple stress parameter and slip effects on the speed, energy consumption, and streamlines of gliding bacteria by simulating their motion mechanism using numerical methods and mathematical models.
COMPUTERS IN BIOLOGY AND MEDICINE
(2022)
Article
Automation & Control Systems
Hossein Moradian, Solmaz S. Kia
Summary: We propose a continuous-time second-order optimization algorithm for solving unconstrained convex optimization problems with bounded Hessian. The algorithm has a comparable convergence rate to that of the continuous-time Newton-Raphson method, but it is more amenable to efficient distributed implementation. The effectiveness of the algorithm is demonstrated through a numerical example.
Article
Materials Science, Multidisciplinary
Z. Nisar, T. Hayat, A. Alsaedi, S. Momani
Summary: This study investigates the mixed convective peristaltic flow of Carreau-Yasuda nanoliquid in the presence of slip conditions. The study utilizes a modified Darcy's expression for porous space and considers a symmetric channel with compliant wall characteristics. The effects of velocity, temperature, and concentration on pertinent variables are discussed graphically, and the heat transfer rate is examined through tabular values.
MATERIALS TODAY COMMUNICATIONS
(2022)
Review
Biochemistry & Molecular Biology
Katarzyna Zegadlo, Monika Gieron, Paulina Zarnowiec, Katarzyna Durlik-Popinska, Beata Krecisz, Wieslaw Kaca, Grzegorz Czerwonka
Summary: Skin and wound infections are difficult to treat due to the diversity of bacteria and their motility plays a key role in causing infections. This article reviews the types of bacterial movement and discusses the underlying mechanisms that can be targeted for developing antibacterial therapies for wound infections. Five types of bacterial movement are identified: appendage-dependent (swimming, swarming, and twitching) and appendage-independent (gliding and sliding), all of which contribute to bacteria's ability to relocate and aid in infection.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Computer Science, Artificial Intelligence
Dong Wang, Zhenzhen Gao
Summary: In this paper, a distributed finite-time optimization protocol is proposed for single-integrator continuous-time multi-agent systems, using a modified Newton-Raphson method. The algorithms are designed with the inverse of Hessian matrix, sign function, and gradient. The proposed algorithms ensure that agents converge to the network optimizer under any initial state and finite time. The convergence of the algorithms is verified using Lyapunov method and the properties of the sign function. Additionally, an adaptive method is considered to avoid complex parameter conditions and centralized parameters. Numerical simulations are provided to validate the presented results.
Article
Computer Science, Interdisciplinary Applications
Md Abdul Raheem Junaidi, Harsha Sista, Ram Chandra Murthy Kalluri, Y. V. Daseswara Rao, Alla Gopala Krishna Gokhale
Summary: During surgeries, blood is often sucked out of the operated tissue using the S-I device, which is more viscous than saline. The study simulated a comprehensive CFD flow analysis of improved forceps for different driving pressures, comparing the resulting blood flow rate among different designs and the current S-I device. The new surgical forceps are reusable, multi-functional, non-toxic, corrosion resistant, toughened, and cost-effective.
COMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Hussein Mohammed Ridha, Hashim Hizam, Seyedali Mirjalili, Mohammad Lutfi Othman, Mohammad Effendy Ya'acob, Masoud Ahmadipour
Summary: This study explores the solutions for photovoltaic model equations and develops a hybrid approach to efficiently determine the parameters of the model. The proposed guaranteed convergence arithmetic optimization algorithm based on efficient modified third order Newton Raphson method highlights important contributions in methodology and objective function design. Experimental results show that this method minimizes the error to zero under various environmental conditions.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Mechanics
Mehryar Jannesari Ghomsheh, Azadeh Jafari, Denis Funfschilling
Summary: Direct three-dimensional Numerical Simulations (DNS) are used to study the inertial lift forces on a single particle in a straight rectangular microchannel filled with Newtonian fluid and xanthan gum solutions. The shear-thinning behavior of xanthan gum solutions is experimentally demonstrated and mathematically represented using power-law and Carreau-Yasuda models. The simulations reveal the dominant region of shear gradient and wall-induced lift forces for both power-law and Carreau-Yasuda fluids, similar to Newtonian fluids. The variable viscosity of non-Newtonian fluids allows for better control of particle motion, particularly in the inertial focusing method.
JOURNAL OF NON-NEWTONIAN FLUID MECHANICS
(2023)
Article
Engineering, Multidisciplinary
J. J. Benito, A. Garcia, M. Negreanu, F. Urena, A. M. Vargas
Summary: This article presents the implementation of two meshless methods, the Space-Time Cloud Method and the Generalized Finite Difference Method, for solving the Zakharov-Kuznetsov-Modified Equal-Width equation, a nonlinear wave equation used to model wave propagation in nonuniform media. Convergence of the GFD explicit scheme is also proven. Both methods are compared in terms of accuracy and efficiency (execution times).
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
(2023)
Article
Engineering, Electrical & Electronic
Kyung-Min Lee, Chul-Won Park
Summary: This paper proposes a modified power flow algorithm based on the Newton-Raphson method for configuring and operating a high-efficiency and robust AC/DC power network with renewable energy sources.
JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY
(2023)