Science topic
MATLAB - Science topic
MATLAB (matrix laboratory) is a numerical computing environment and fourth-generation programming language. Developed by MathWorks, MATLAB allows matrix manipulations, plotting of functions and data, implementation of algorithms, creation of user interfaces, and interfacing with programs written in other languages, including C, C++, Java, and Fortran.
Publications related to MATLAB (10,000)
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An executable Java software, netGen, for visualizing networks was developed in present study. An interactive network can be visualized from the specified text or csv data file by using netGen. netGen is useful to visualize both undirected and directed networks. Both netGen and demonstration data files are given.
Find details at:
http://www.iaees.o...
Based on the previous web tool, I developed a Matlab software, netVisual, for generating a HTML file from which the user-interface interactive network can be visualized in the web browsers. In the network, the user can mouse-press any node to drag the network, to examine network topology, and to evaluate node centrality, etc. It can be freely used...
The opaque photovoltaic thermal (PVT) produces both thermal and electrical energy. In order to increase thermal energy, we have considered flexible (Al-based) photovoltaic (PV) module for the present study. Further, we have considered thermo-electric cooler (TEC) integrated with flexible PV module to enhance electrical power. As a result, an overal...
We investigate the tanh-coth method's usefulness in understanding space-time fractional nonlinear evolution problems. To use this method and then examine their plots, we take into consideration three significant equations: the space-time fractional Burgers equation, the space-time fractional regularized long wave equation, and the space-time fracti...
While traditional methods for modelling the thermal and electrical behaviour of photovoltaic (PV)
modules rely on analytical and empirical techniques, machine learning is gaining interest as a way to
reduce the time, expertise, and tools required by designers or experts while maintaining high accuracy
and reliability. This research presents a data-...
The heat flux in the focal region of a compound parabolic collector (CPC) and the receiver’s surface is varying and ununiform, and its effective absorption is one of the challenging tasks. It opens new opportunities for suitable and appropriate designs for the receiver. Thus, a new design of the mini-channel receiver is proposed based on fluid flow...
This paper motivates the loss characterization and modeling of Class II multi-layer ceramic capacitors (MLCCs), which have been widely utilized owing to high energy density, in high-frequency resonant converters. In a resonant tank, MLCCs experience complex electrical operating conditions (e.g., large-signal, high-frequency, DC bias), but the incur...
Power distribution grids (PDGs) are one of the main parts of electrical logistic chains with the task of transferring electricity to the consumers continually. Adverse weather conditions, equipment failure, and human disruption can bring about the PDGs to faulty situations leading to the inevitable interrupting power consumption which results in fi...
Synthetic data is essential for assessing clustering techniques, complementing and extending real data, and allowing for more complete coverage of a given problem’s space. In turn, synthetic data generators have the potential of creating vast amounts of data—a crucial activity when real-world data is at premium—while providing a well-understood gen...
Hybrid ac/dc distribution grids are gaining popularity due to their potential to conflate the benefits of both ac and dc grids. However, the complex structure of these grids imposes new challenges in power flow (PF) calculations due to multiple ac/dc interconnections, variety of converter operations, and constant dc power loads. This paper proposes...
MATLAB and Simulink for Quantitative Finance and Risk Management. MATLAB and Simulink are essential tools for quantitative finance and risk management. Tonex's comprehensive training course equips professionals with hands-on experience, practical exercises, case studies, and projects to address complex modeling challenges and enhance decision-makin...
Fault detection technique is important for enhancing protection, stability, reliability and continuity of supply. There are many fault detection techniques implemented in power system such as Fourier transform, wavelet transform, neural networks, etc. This research presents the fault identification and analysis using wavelet transform method as wel...
Trajectory optimization is a challenging task in the robotics community. Several factors need to be taken into account when generating a feasible optimized trajectory. The optimization process heavily relies on the dynamic model of the system. Currently, there are various drone designs available, categorized based on their actu-ation status. In thi...
The current UAV technology is developing rapidly and there are various UAV concepts such as hybrid vertical take-off and landing (VTOL) UAV in addition to traditional UAV. The main solution direction of these UAV concepts lies in the compatibility of vertical take-off and landing and long endurance and high load. However, in some complex environmen...
With the rapid development of deep learning approaches, outlier detection is essential and used in a variety of applications. It is challenging to predict the boundaries from the original and abnormal regions due to the unlabelled dataset. Complexity also arises with the noise identified in real-time data and the tendency of the newer data included...
Environmental noise may have a big impact on employee health and productivity. Also Long-term exposure to excessive levels of noise and vibration can be harmful to workers’ health. This paper aims to survey the uneasiness levels of humans working in a noisy area, where the noise is being created from different machines that incite hearing impairmen...
Design, code, and verify embedded systems with MATLAB and Simulink is a comprehensive training course by Tonex equips participants with the essential skills and knowledge to design, code, and verify embedded systems using MATLAB and Simulink. Embedded systems are the backbone of modern technology, powering everything from smartphones to automotive...
Bài báo trình bày về việc ứng mạng nơ ron nhân tạo (ANN) trong tính toán và tối ưu hóa kết cấu khung máy in 3D bê tông dạng cổng kích thước lớn. Để tự động tính toán, phân tích kết cấu khung máy, chương trình tính toán chuyển vị và tần số dao động riêng của hệ được xây dựng dựa trên ngôn ngữ ANSYS APDL được kết nối MATLAB. Dựa trên chương trình tự...
This paper presents a novel method for identifying bridge damage using a vehicle equipped with instruments, specifically by using the vehicle's acceleration history to calculate changes in the "Bridge Displacement Profile", which is proven to be sensitive to structural damage. This method, known as "Drive-by Bridge Inspection", has seen a shift in...
The numerical investigation of bioconvective nanofluid (NF) flow, which involves gyrotactic microbes and heat and mass transmission analysis above an inclined extending axisymmetric cylinder, is presented in this study. The study aims to investigate the bioconvection flow of nanofluid under the influence of heat sources/sinks. Through proper transf...
Internet of Things and Image processing have been so far been applied for various applications independently. This paper describes an approach to combine IoT and image processing in order to determine the environmental factor or pesticides/fertilizers which is specifically hindering the growth of the plant. Using an IoT sensing network which takes...
A gas breakthrough in saturated bentonite is relevant to the safety of high-level radioactive waste repositories. The study of gas transport mechanisms in saturated bentonite is very important for the safety assessment of repositories. This paper proposed a coupled fluid-mechanical interaction model for predicting and simulating the path of gas tra...
Energy transition has arisen its attention towards hydrogen technology. Green hydrogen can be produced from renewable energy sources such as photovoltaic (PV) through water electrolysis. However, its efficiency needs to be improved due to the intermittent nature of the remote microgrids. This study focuses on the design of SEPIC DC/DC converter and...
Cancer is one of the most severe forms of disease that adversely threaten human life in recent years. Considering different categories of cancer, skin cancer seems to be a high risk. The Deep learning (DL) method has been established to promote enhanced performance in classifying the diverse skin lesion stages. Manual detection is not accurate and...
Purpose . Commercial electron FLASH platforms deliver ultra-high dose rate doses at discrete combinations of pulse parameters including pulse width (PW), pulse repetition frequency (PRF) and number of pulses ( N ), which dictate unique combinations of dose and dose rates. Additionally, collimation, source to surface distance, and airgaps also vary...
Primary fractures significantly impacted the stability of surrounding rock in underground projects. Therefore, it is vital to find a solution for the problem of performing a non-destructive detection of rocks and extracting the internal three-dimensional (3D) data field of rocks for visualization analysis. To address this problem, this paper propos...
This study delves into the innovation of mini light-emitting diode (mini-LED) backlight module designs, a significant advancement in display technology. The module comprises a substrate, a receiving plane, and an LED structure, which uses a blue light with specific spectral characteristics. When combined with a red-green quantum dot (QD) film, it p...
Due to its advantages of low latency, low power consumption, and high flexibility, FPGA-based acceleration technology has been more and more widely studied and applied in the field of computer vision in recent years. An FPGA-based feature extraction and tracking accelerator for real-time visual odometry (VO) and visual simultaneous localization and...
The stability calculation of dangerous rock mass is the key for preventing and controlling dangerous rock mass collapse as a geological disaster. Indeed, it is of great practical significance to propose a scientific and relatively accurate stability computation for predicting the collapse of dangerous rock mass. Based on conventional limit equilibr...
In projects such as highway bridges and offshore wind farms, understanding the kinematics of soil layers and their displacement is important for accurately predicting the behavior of caissons and monopiles under lateral loads. To better predict the distribution of soil deformation around the foundations, this paper presents an extensive usage of th...
In multi-scale topology optimization methods, the analysis encompasses two distinct scales: the macro-scale and the micro-scale. The macro-scale refers to the overall size and dimensions of the structural domain being studied, while the micro-scale pertains to the periodic unit cell that constitutes the macro-scale. This unit cell represents the en...
Cluster analysis is a crucial issue in multivariate statistics and data science due to its application in various fields. This study proposes a cutting-edge clustering algorithm for image data with important improvements. First, we extract the texture features from each image and represent them as two-dimensional intervals, which serve as effective...
Perencanaan pengembangan sistem distribusi menjadi suatu yang sangat penting seiring dengan peningkatan kebutuhan beban listrik, dengan tetap memperhatikan sisi efisiensi penyaluran dan kualitas daya yang disalurkan ke konsumen. Penambahan jaringan distribusi tentunya akan mengakibatkan penambahan kapasitas dan jumlah transformator serta gardu dist...
هنر مدلسازی و تبدیل مساله واقعی به مدلهای قابل تحلیل و از آن پس حل مدل و تعمیم نتایج روی مساله واقعی یک سیر اساسی است که که کتاب حاضر سعی در آموزش آن دارد. بر اساس این نگاه به طبیعت، مباحث برنامهریزی خطی و بهینهسازی ترکیبیاتی مورد توجه قرار میگیرند. این مسایل با توجه به نقشه جامع علمی کشور و آرمانهای ایران عزیز برای تبدیل به ده اقتصاد برتر جهان...
Microwave absorbers have many applications in medical, industrial, and military devices. Polymeric composites including carbon-based filler can be used as lightweight absorbers with high electromagnetic (EM) wave absorption performance. Hence, multilayer microwave absorbers were designed using titanium dioxide (TiO2)/reduced graphene oxide (RGO)/ep...
There are significant differences between pure electric vehicles and traditional fuel vehicles. High-power converters are required to meet the increased energy consumption requirements of loads within pure electric vehicles. A high-power integrated DC-DC converter is designed to meet the requirements of pure electric vehicles. First, the characteri...
Structural health monitoring plays a crucial role in ensuring the integrity and safety of engineering structures such as steel beams. This research paper presents a comprehensive methodology for detecting transverse cracks in beams with a constant section and any boundary conditions. The proposed approach utilizes the normalized squared modal curva...
The range of electric vehicles (EVs) is still limited due to the long amount of time it takes to charge them. However, to overcome the time constraint of recharging electric vehicle batteries, fast charging stations (FCS) can be installed. These stations are capable of fully charging a vehicle's battery in just a few minutes. For this purpose, this...
A new 3D mesoscale computational approach to simulate the mechanical behavior of soil–rock mixtures (SRMs) with the consideration of the grain-crushing process is proposed in this study. The proposed approach adopts a random SRM mesostructure generation algorithm to create a random SRM structure. Based on the generated mesostructure, the whole simu...
The conventional Integer Order-based Proportional Integral Derivative (IO-PID) control has been widely employed in process control and manufacturing industries. However, upon thorough review, it is evident that traditional IO-PID control falls short when applied to non-linear and higher-order systems. This paper addresses the challenge of controlli...
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Many industrial applications, including coating processes, roller bearing uses, and cooling gas turbine rotors, involve non-Newtonian fluid flow across rotating cylinders. The current study aims at evaluating the energy transport of the Maxwell fluid rotating over a horizontal cylindrical surface using the Cattaneo–Christov heat flux conduction mod...
In this paper, an extended SIR mathematical model (SAIQR) along with an optimal control strategy is proposed to investigate the prevalence of a hypothetical epidemic. By providing controls and examining suitable strategies for control, the cost of control has been minimized. This is while the infected people have been reduced to a minimum in order...
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In this paper, considering combined excitations of the steady current, surface wave, internal solitary wave as well as, the vessel’s surge and heave motions, a time-domain model is established to investigate the lateral dynamic response of marine drilling risers. The finite element and Newmark-β methods are used to solve the nonlinear partial diffe...
Flexible endoscopes are widely used for diagnostic and therapeutic procedures on internal organs and tissue surfaces. Accurate positioning of the endoscope tip is critical for obtaining clear images and avoiding tissue damage. Proximity sensors can provide information about the distance to the surrounding tissue, which can help align the endoscope...
In this study, energy optimization of multiple electrical systems in off-grid mode with optimal participation of the storage systems is investigated. Multiple renewable sources, including solar cells, diesel generators, wind turbines, and backup storage systems, are utilized to feed the demand with high reliability. The load demand is divided into...
Wound healing can be delayed if the biomechanical stability of the wound closure is inadequate. Therefore, it is necessary to investigate different suturing techniques for their biomechanical stability. In this study, suturing techniques suitable for the forehead area were investigated. For this application, a special test setup was developed to si...
In this paper, an eddy current testing system equipped with low-performance processor is designed for rail defect detection. A digital lock-in amplifier (DLIA) based on adaptive Kalman filter (AKF) is presented to detect the weak voltage induced in two differential coils. The proposed method can fast demodulate the amplitude of a signal with a rand...
In this study, we comprehensively investigate the structure and operational principles of the Rotary Direct Drive Electro-Hydraulic Pressure Servo Valve (RDDPV). Our objective is to establish the dynamics equations governing the motor, slide valve, and bias mechanism of the valve. Additionally, we construct a mathematical model for the servo valve...
Respiration is a vital process for normal function at every level of organization of living beings. A simple and noncontact measurement of the respiratory rate certainly offers advantages in many situations compared to classical measurements, e.g., with a respiratory measurement belt. Thus, we started a study for thermographic detection of breathin...
Finite element analyses of irregular structures require adaptive mesh refinement to achieve more accurate results in an efficient manner. This is also true for a non-conventional finite element method with Kriging interpolation, called the Kriging-based finite element method (K-FEM). This paper presents a study of automatic adaptive meshing procedu...
Photovoltaic distributed generation (PVDG) is a noteworthy form of distributed energy generation that boasts a multitude of advantages. It not only produces absolutely no greenhouse gas emissions but also demands minimal maintenance. Consequently, PVDG has found widespread applications within distribution networks (DNs), particularly in the realm o...
The 65 ml/r fuel pump proposed in this paper is a new type of large-displacement piston pump. The pump is of the roller plunger type construction. This structure enables the pump to have good performance even under high and variable speed conditions. Firstly, force analysis of this pump and establishment of mathematical model of pump mechanical eff...
Solar energy is rapidly becoming a viable alternative to the finite supply of fossil fuels. The transformation of solar radiation into heat, which could be utilized in water heating systems, is one of the simplest and most direct uses of this energy. The flat-plate solar collector is a popular type of solar collector. A significant amount of study...
The robotic manipulator is considered one of the complex systems that include multi-input, multi-output, non-linearity, and highly coupled. The uncertainty in the parameters and external disturbances have a negative influence on the performance of the system. Therefore, the controllers that will be designed for these systems must be able to deal wi...
Fear, harvesting, hunting cooperation, and antipredator behavior are all important subjects in ecology. As a result, a modified Leslie-Gower prey-predator model containing these biological aspects is mathematically constructed, when the predation processes are described using the Beddington-DeAngelis type of functional response. The solution's posi...
The purpose of this paper is to use mathematical models to predict the population growth of India. India is the second most populous country in the world, with over 1.3 billion people, more than a sixth of the world's population. The Exponential and the Logistic growth models were applied to the model the population growth of India using data from...
In this paper, the concept of symmetry is utilized in the promising trajectory-following control design of autonomous ground electric vehicles—that is, the construction and the solution of active disturbance rejection controllers are symmetrical. This paper presents an active disturbance rejection controller (ADRC) for improving the trajectory-foll...
In recent times, renewable energy systems (RESs) such as Photovoltaic (PV) and wind turbine (WT) are being employed to produce hydrogen. This paper aims to compare the efficiency and performance of PV and WT as sources of RESs to power polymer electrolyte membrane electrolyzer (PEMEL) under different conditions. The study assessed the input/ output...
Nowadays, detecting fetal electrocardiogram (FECG) signals from a mother’s abdominal region is considered a most challenging task because of the high maternal overlapping and fetal signals at this location. Different existing FECG signal extraction techniques have been emphasized for extracting fetal ECG signal features. However, the noises present...
In view of the floating rectangular aerostatic guideway problem of low load capacity and stiffness, this paper puts forward a kind of closed rectangular aerostatic guideway and its optimized design. Firstly, the analytic calculation formula of a closed rectangular aerostatic guideway was deduced. The use of MATLAB software for the numerical simulat...
A variational model was used to extract or segment the breast ultrasound (BUS) image boundary in order to find a closed curve line of the abnormality region for further diagnosis. A recent selective variational model, termed the Convex Distance Selective Segmentation (CDSS) model, is effective at segmenting a specific image object. However, the CDS...
Numerous practical and mathematical techniques have been piloted to study ships’ behavior in deep water conditions with and without waves, and shallow water conditions without waves, while only limited investigations have been carried out to assess ships’ behavior in shallow waters with wave conditions as the flow around the stern region and append...
Path planning and tracking control is an essential part of autonomous vehicle research. In terms of path planning, the artificial potential field (APF) algorithm has attracted much attention due to its completeness. However, it has many limitations, such as local minima, unreachable targets, and inadequate safety. This study proposes an improved AP...
The Agro-climatic onset of crop season was calculated for 22 districts of Haryana states. The long period rainfall data from 1987 to 2017 was collected from India Meteorological Department (IMD), New Delhi. The main aim of this study is to obtain the conditions suitable for sowing of crops on the basis of rainfall event in the respective district....
In this study, it is aimed to estimate the monthly export values of broad economic categories belonging to Turkey's foreign trade. Broad economic categories discussed in the study: Investment goods, raw materials and consumer goods. Relevant monthly export values are estimated by artificial neural networks method, which is an artificial intelligenc...
The fuel consumption of marine diesel engines holds paramount importance in contemporary maritime transportation and shapes
energy efficiency strategies of ocean-going vessels. Nonetheless, a noticeable gap in knowledge prevails concerning the influence of ship hull
conditions and propeller roughness on fuel consumption. This study bridges this gap...
A variational model was used to extract or segment the breast ultrasound (BUS) image boundary in order to find a closed curve line of the abnormality region for further diagnosis. A recent selective variational model, termed the Convex Distance Selective Segmentation (CDSS) model, is effective at segmenting a specific image object. However, the CDS...
Dentre as etapas de exploração e produção de um campo petrolífero, destaca-se a perfilagem geofísica. A interpretação de perfis geofísicos geram dados que nos permitem estimar a quantidade de óleo “in place” de uma jazida. Com os dados de raios gama, resistividade (indução), densidade e neutrão, do campo de Namorado – Bacia de Campos, disponibiliza...
The region-based Active Contour Model (ACM) is a widely known variational segmentation model for extracting or segmenting a digital image into numerous sections for further analysis. Distinguishing between global and specific segmentation models within this paradigm is possible. The global segmentation model is incapable of selectively segmenting t...
The present research studies the complexity of urban facades, which is related to the visual diversity and correlation of the components of urban facades. It studies how the complexity of urban facades affects their desirability amongst citizens and what their preferences are when it comes to facade complexity. In addition, it addresses the complex...
This paper presents a straightforward design algorithm to enhance power and data transmission for 13.56 MHz Radio Frequency Identification (RFID) sensor applications by using domino-resonators. In this algorithm, the transformed transponder impedance and modulation depth seen at the reader antenna are formulated and modeled under the presence of do...
The region-based Active Contour Model (ACM) is a widely known variational segmentation model for extracting or segmenting a digital image into numerous sections for further analysis. Distinguishing between global and specific segmentation models within this paradigm is possible. The global segmentation model is incapable of selectively segmenting t...
