33 results on '"Md Masud Rana"'
Search Results
2. 2D Nanomaterial-Based Hybrid Structured (Au-WSe2-PtSe2-BP) Surface Plasmon Resonance (SPR) Sensor With Improved Performance
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Md. Mahabubur Rahman, Lway Faisal Abdulrazak, Mominul Ahsan, Md. Abdul Based, Md. Masud Rana, Md. Shamim Anower, Khaleda Akter Rikta, Julfikar Haider, and Saravanakumar Gurusamy
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General Computer Science ,Surface plasmon resonance (SPR) ,finite element method (FEM) ,General Engineering ,General Materials Science ,Electrical engineering. Electronics. Nuclear engineering ,Electrical and Electronic Engineering ,transition metal dichalcogenides (TMDCs) ,sensitivity ,TK1-9971 - Abstract
As a promising optical method used in a variety of applications surface plasmon resonance (SPR) sensors are employed over a wide range of boundaries. This research proposes a highly sensitive SPR based sensor with a novel hybrid structure using transition metal dichalcogenides (e.g. WSe2, PtSe2) along with black phosphorene (BP) through comprehensive numerical study. To analyze and evaluate the performances of the proposed sensor, the widely used transfer matrix method (TMM) was used. The performances of the sensor were measured in terms of reflectivity, sensitivity, detection accuracy (DA), and figure of merit (FOM). The sensor structure was optimized by changing different structural parameters of the hybrid architecture to obtain better performances. The results revealed that insertion of PtSe2 with WSe2 and BP over a gold layer of the conventional structure improved the performance of the sensor and the maximum sensitivity of the sensor was measured as 200 deg/RIU with a FOM of 17.70 RIU−1. As well, the light penetration through the optimized sensor is investigated using the finite element method (FEM) based software. With this kind of high sensing capabilities, it may be convinced that the proposed sensor can be applied in different fields of biosensing to detect liquid biological and biochemical samples or analytes.
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- 2022
3. Surface plasmon resonance biosensor sensitivity improvement employing of 2D materials and BaTiO3 with bimetallic layers of silver
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Arun Uniyal, Amrindra Pal, Gaurav Srivastava, Md. Masud Rana, Sofyan A. Taya, Amandeep Sharma, Baraa Riyadh Altahan, Sanjiv Tomar, Yadvendra Singh, Deependra Parajuli, Lassaad K. Smirani, S. K. Hasane Ahammad, and Ahmed Nabih Zaki Rashed
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Electrical and Electronic Engineering ,Condensed Matter Physics ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials - Published
- 2023
4. A Performance Comparison of Heterostructure Surface Plasmon Resonance Biosensor for the Diagnosis of Novel Coronavirus SARS-CoV-2
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Tarik Bin Abdul Akib, Shahriar Mostufa, Md. Masud Rana, Md. Biplob Hossain, and Md. Rabiul Islam
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Electrical and Electronic Engineering ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials - Abstract
This paper presents a performance comparison of heterostructure surface plasmon resonance (SPR) biosensors for the application of Novel Coronavirus SARS-CoV-2 diagnosis. The comparison is performed and compared with the existing literature based on the performance parameters in terms of several prisms such as BaF2, BK7, CaF2, CsF, SF6, and SiO2, several adhesion layers such as TiO2, Chromium, plasmonic metals such as Ag, Au, and two-dimensional (2D) transition metal dichalcogenides (TMDs) materials such as BP, Graphene, PtSe2 MoS2, MoSe2, WS2, WSe2. To study the performance of the heterostructure SPR sensor, the transfer matrix method (TMM) is applied, and to analyses, the electric field intensity (EFI) near the graphene-sensing layer contact, the finite-difference time-domain (FDTD) approach is utilized. Numerical results show that the heterostructure comprised of CaF2/TiO2/Ag/BP/Graphene/Sensing-layer has the best sensitivity and detection accuracy. The proposed sensor has an angle shift sensitivity of 390°/refractive index unit (RIU). Furthermore, the sensor achieved a detection accuracy (DA) of 0.464, a quality factor (QF) of 92.86/RIU, a figure of merit (FOM) of 87.95, and a combined sensitive factor (CSF) of 85.28. Furthermore, varied concentrations (0nM to 1000nM) of biomolecule binding interactions between ligands and analytes have been observed for the prospects of diagnosis of the SARS-CoV-2 virus. Results demonstrate that the proposed sensor is well suited for real-time and label-free detection particularly SARS-CoV-2 virus detection.
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- 2022
5. Efficient Energy Distribution for Smart Household Applications
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Md Masud Rana, Akhlaqur Rahman, Moslem Uddin, Md Rasel Sarkar, SK. A. Shezan, C M F S Reza, Md. Fatin Ishraque, and Mohammad Belayet Hossain
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Control and Optimization ,photovoltaic system ,Renewable Energy, Sustainability and the Environment ,Energy Engineering and Power Technology ,Electrical and Electronic Engineering ,battery energy storage system ,Engineering (miscellaneous) ,energy distribution technique ,smart household system ,Energy (miscellaneous) - Abstract
Energy distribution technique is an essential obligation of an intelligent household system to assure optimal and economical operation. This paper considers a small-scale household system detached from the power grids consisting of some electrical components in day-to-day life. Optimal power distribution generated from a photovoltaic system is vital for ensuring economic and uninterrupted power flow. This paper presents an optimal energy distribution technique for a small-scale smart household system to ensure uninterrupted and economical operation. A photovoltaic (PV) system is considered as the primary generation system, and a battery energy storage system (BESS) is viewed as a backup power supply source. The actual load and PV generation data are used to validate the proposed technique collected from the test household system. Two different load profiles and photovoltaic power generation scenarios, namely summer and winter scenarios, are considered for case studies in this research. An actual test household system is designed in MATLAB/Simulink software for analyzing the proposed technique. The result reveals the effectiveness of the proposed technique, which can distribute the generated power and utilize the BESS unit to ensure the optimal operation. An economic analysis is conducted for the household system to determine the economic feasibility. The capital investment of the system can be returned within around 5.67 years, and the net profit of the system is 2.53 times more than the total capital investment of the system. The proposed technique can ensure economical operation, reducing the overall operating cost and ensuring an environment-friendly power system. The developed strategy can be implemented in a small-scale detached interconnected smart household system for practical operation to distribute the generated energy optimally and economically.
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- 2022
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6. A Pragmatic Data Based Evaluation of CLT in the EFL Curricula at Higher Secondary Level in Bangladesh
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Md. Mahmud Hasan Chowdhury and Md. Masud Rana
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050101 languages & linguistics ,Linguistics and Language ,Literature and Literary Theory ,English language ,lcsh:PR1-9680 ,Language and Linguistics ,lcsh:P1-1091 ,Mathematics education ,0501 psychology and cognitive sciences ,Electrical and Electronic Engineering ,Curriculum ,Secondary level ,05 social sciences ,050301 education ,Grammar–translation method ,Communicative language teaching ,efl students in bangladesh, higher secondary certificate (hsc), communicative language teaching (clt), grammar translation method (gtm), curriculum ,Metropolitan area ,Modern language ,language.human_language ,lcsh:English literature ,lcsh:Philology. Linguistics ,Bengali ,language ,Psychology ,0503 education - Abstract
This paper evaluates the scope and relative unfeasibility of communicative language teaching (CLT) that was introduced at higher secondary level in Bangladesh to innovate English language teaching (ELT) by replacing grammar translation method (GTM). To substantiate the evaluation, a survey intended to determine the feasibility and relative drawbacks of CLT was made. A total of 100 teachers and 100 students participated in the survey of 10 different colleges of Dhaka and Khulna metropolitan cities of Bangladesh and two different questionnaires were used to collect quantitative data from randomly selected teachers and students. The study reveals that most of the EFL students in Bangladesh could not succeed in learning English language through CLT in spite of studying it for twelve years at their secondary and higher secondary levels. The paper also examines multifaceted problems affecting English language teaching and learning through CLT such as most of the classrooms of Bengali medium colleges are not well-furnished with modern language teaching equipment, lack of training and teaching materials, student’s lack of background knowledge, motivation etc. Therefore, the real outcome of CLT in Bangladesh could not meet the initial dream and promise with which it was introduced and eventually became inappropriate and ineffective.This article critically evaluates CLT focusing on multiple barriers and factors instrumental for the failure of the approach at higher secondary level in Bangladesh. Finally, the study concludes with several recommendations to promote English language teaching at higher secondary level in Bangladesh.
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- 2020
7. A Comparative Analysis of Peak Load Shaving Strategies for Isolated Microgrid Using Actual Data
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Md Masud Rana, Akhlaqur Rahman, Moslem Uddin, Md Rasel Sarkar, Sk. A. Shezan, Md. Fatin Ishraque, S M Sajjad Hossain Rafin, and Mohamed Atef
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Technology ,Control and Optimization ,Renewable Energy, Sustainability and the Environment ,Energy Engineering and Power Technology ,peak load shaving ,microgrid system ,photovoltaic system ,battery energy storage system ,peak shaving technique ,Electrical and Electronic Engineering ,Engineering (miscellaneous) ,Energy (miscellaneous) - Abstract
Peak load reduction is one of the most essential obligations and cost-effective tasks for electrical energy consumers. An isolated microgrid (IMG) system is an independent limited capacity power system where the peak shaving application can perform a vital role in the economic operation. This paper presents a comparative analysis of a categorical variable decision tree algorithm (CVDTA) with the most common peak shaving technique, namely, the general capacity addition technique, to evaluate the peak shaving performance for an IMG system. The CVDTA algorithm deals with the hybrid photovoltaic (PV)—battery energy storage system (BESS) to provide the peak shaving service where the capacity addition technique uses a peaking generator to minimize the peak demand. An actual IMG system model is developed in MATLAB/Simulink software to analyze the peak shaving performance. The model consists of four major components such as, PV, BESS, variable load, and gas turbine generator (GTG) dispatch models for the proposed algorithm, where the BESS and PV models are not applicable for the capacity addition technique. Actual variable load data and PV generation data are considered to conduct the simulation case studies which are collected from a real IMG system. The simulation result exhibits the effectiveness of the CVDTA algorithm which can minimize the peak demand better than the capacity addition technique. By ensuring the peak shaving operation and handling the economic generation dispatch, the CVDTA algorithm can ensure more energy savings, fewer system losses, less operation and maintenance (O&M) cost, etc., where the general capacity addition technique is limited.
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- 2022
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8. Enhanced piezoelectricity in lead-free halide perovskite nanocomposite for self-powered wireless electronics
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Md Masud Rana, Asif Abdullah Khan, Weiguang Zhu, Md Fahim Al Fattah, Sathursan Kokilathasan, Shazzad Rassel, Rozenn Bernard, Soraya Ababou-Girard, Pascal Turban, Shuhong Xu, Chunlei Wang, Dayan Ban, University of Waterloo [Waterloo], Institut de Physique de Rennes (IPR), Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS), Southeast University, Henan University of Economics and Law, Natural Sciences and Engineering Research Council of Canada (NSERC) [CRDPJ 514858-17], Ontario Centers of Excellence (OCE) , Canada [VIP II-28314], University of Waterloo, Canada [10001-10643], National Science Fund for Excel-lent Young Scholars [61822503], Natural Science Foun-dation of China [22075043, 21875034, 61704093], and Foundation of Jiangsu Province for Outstanding Young Teachers in University [BK20180064]
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[PHYS]Physics [physics] ,Renewable Energy, Sustainability and the Environment ,Lead-free hybrid perovskite ,Wireless power transmitter ,General Materials Science ,Electrical and Electronic Engineering ,Piezoelectric nanogenerator ,Energy-harvesting ,FASnBr(3)-PDMS composite PENG - Abstract
International audience; Lately, lead-free flexible piezoelectric nanogenerators (PENGs) have drawn much attention because of the threat posed by lead (Pb)-based piezoelectric materials to the environment. Here, we reported an organic-inorganic hybrid perovskites (OIHP) PENG, which is a combination of lead-free formamidinium tin (Sn) halide perovskite (CH(NH2)(2)SnBr3 (FASnBr(3))) nanoparticles (NPs) and polydimethylsiloxane (PDMS) polymer matrix. By using piezoelectric force microscopy (PFM) measurements, we unveil the excellent piezoelectric properties of the FASnBr(3) NPs with a high piezoelectric charge coefficient (d(33)) of similar to 50 pm/V. Due to the outstanding flexibility and uniform distribution properties, the device demonstrated a maximum piezoelectric peak to peak output voltage of 94.5 Vp-p, peak to peak current of 19.1 mu Ap-p, and output power density of 18.95 mu W/cm(2) with a tiny force of 4.2 N; these characteristics substantially outperform a number of the state-of-the-art halide perovskite based PENGs (Table S1). Given their high electromechanical energy conversion efficiency, the electrical energy produced from the PENGs was used to power a Bluetooth-capable system on chip (SoC) to build an entirely self-powered radio frequency (RF) communication system. For the first time, we established a self-powered RF wireless communication between nanogenerator and smart electronic devices which is solely based on a lead-free PENG. It is anticipated that the fabricated FASnBr(3)@PDMS nanocomposite PENG not only possesses outstanding performance and reliability but also serves as a stepping-stone towards achieving self-powered Internet of Things (IoT) devices built using environment-friendly perovskite piezoelectric materials.
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- 2022
9. IoT‐based cyber‐physical communication architecture: challenges and research directions
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Md Masud Rana and Rui Bo
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lcsh:Computer engineering. Computer hardware ,Computer Networks and Communications ,Network security ,Computer science ,iot-based cyber-physical communication architecture ,lcsh:TK7885-7895 ,security ,Communications system ,Computer security ,computer.software_genre ,lcsh:QA75.5-76.95 ,computerised instrumentation ,Intelligent sensor ,Artificial Intelligence ,Need to know ,computer network security ,iot communication systems ,communication complexity ,Electrical and Electronic Engineering ,Communication complexity ,smart cyber-physical communication system design ,distributed state estimation ,business.industry ,intelligent sensor-actuator design ,Cyber-physical system ,intelligent sensors ,internet of things ,Computer Science Applications ,intelligent services ,intelligent actuators ,iot-based cyber-physical digital world architecture ,Key (cryptography) ,Systems design ,universal antenna design ,lcsh:Electronic computers. Computer science ,antennas ,business ,computer ,Information Systems - Abstract
In order to provide intelligent services, the Internet of Things (IoT) facilitates millions of smart cyber-physical devices to be enabled with network connectivity to sense, collect, process, and exchange information. Unfortunately, the traditional communication infrastructure is vulnerable to cyber attacks and link failures, so it is a challenging task for the IoT to explore these applications. In order to begin research and contribute into the IoT-based cyber-physical digital world, one will need to know the technical challenges and research opportunities. In this study, several key technical challenges and requirements for the IoT communication systems are identified. Basically, privacy, security, intelligent sensors/actuators design, low cost and complexity, universal antenna design, and friendly smart cyber-physical system design are the main challenges for the IoT implementation. Finally, the authors present a diverse set of cyber-physical communication system challenges such as practical implementation, distributed state estimation, real-time data collection, and system identification, which are the major issues require to be addressed in implementing an efficient and effective IoT communication system.
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- 2019
10. A review on hybrid photovoltaic – Battery energy storage system: Current status, challenges, and future directions
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Md Masud Rana, Moslem Uddin, Md Rasel Sarkar, G.M. Shafiullah, Huadong Mo, and Mohamed Atef
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Renewable Energy, Sustainability and the Environment ,Energy Engineering and Power Technology ,Electrical and Electronic Engineering - Published
- 2022
11. A Review on Peak Load Shaving in Microgrid—Potential Benefits, Challenges, and Future Trend
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Md Masud Rana, GM Shafiullah, Mohamed Atef, Md. Rasel Sarkar, and Moslem Uddin
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Control and Optimization ,Renewable Energy, Sustainability and the Environment ,Energy Engineering and Power Technology ,Electrical and Electronic Engineering ,Engineering (miscellaneous) ,Energy (miscellaneous) - Abstract
This study aims to review the potential benefits of peak load shaving in a microgrid system. The relevance of peak shaving for a microgrid system is presented in this research review at the outset to justify the peak load shaving efficacy. The prospective benefits of peak shaving in microgrid systems, including technological, economic, and environmental advantages, are thoroughly examined. This review study also presents a cost–benefit numerical analysis to illustrate the economic viability of peak load shaving for a microgrid system. Different peak shaving approaches are briefly discussed, as well as the obstacles of putting them into practice. Finally, this review study reveals some potential future trends and possible directions for peak shaving research in microgrid systems. This review paper lays a strong foundation for identifying the potential benefits of peak shaving in microgrid systems and establishing suitable projects for practical effectuation.
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- 2022
12. Numerical analysis of gold coating based quasi D-shape dual core PCF SPR sensor
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Ibrahim Mustafa Mehedi, T. V. Mahendiran, Md. Masud Rana, Md. Amzad Hossain, Lway Faisal Abdulrazak, and Md. Biplob Hossain
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Materials science ,business.industry ,Multiphysics ,Modal analysis ,Polishing ,02 engineering and technology ,021001 nanoscience & nanotechnology ,01 natural sciences ,Atomic and Molecular Physics, and Optics ,Finite element method ,Electronic, Optical and Magnetic Materials ,010309 optics ,Wavelength ,Optics ,0103 physical sciences ,Figure of merit ,Electrical and Electronic Engineering ,0210 nano-technology ,business ,Refractive index ,Photonic-crystal fiber - Abstract
In this article, a Quasi D-Shape dual core Photonic Crystal Fiber Surface Plasmon Resonance sensor is offered and numerically analyzed. The offered model is established comprising of circular air holes having an external sensing polishing layer coated with gold (Au) in order to ensure simple and straightforward design. The performance parameters are examined by means of modal analysis incorporated finite element method utilizing COMSOL multiphysics software. The sensor performance is analyzed with modifying the geometrical parameters like metal (Au) layer and pitch. It is observed; this model shows maximum amplitude sensitivity of 230 RIU−1 and wavelength sensitivity of 15,000 nm-RIU−1 incorporating amplitude interrogation method and wavelength interrogation method, respectively. The Figure of Merit is similarly considered and measured to 45 per RIU inbetween the refractive index ranging 1.42 RIU to 1.46 RIU. As a final point, a comparison has been given among the work explained in this paper with existing works.
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- 2020
13. High Birefringence and Negative Dispersion Based Modified Decagonal Photonic Crystal Fibers: A Numerical Study
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Iraj Sadegh Amiri, Md. Nazmus Sakib, Md. Sanwar Hossain, Md. Biplob Hossain, Md. Muztahidul Islam, Anik Baul, Md. Masud Rana, and Md. Amzad Hossain
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Signal processing ,Materials science ,Birefringence ,Residual dispersion ,02 engineering and technology ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,01 natural sciences ,Atomic and Molecular Physics, and Optics ,Finite element method ,010309 optics ,0103 physical sciences ,Dispersion (optics) ,Electrical and Electronic Engineering ,Composite material ,0210 nano-technology ,Photonic-crystal fiber - Abstract
In this paper, an extremely birefringent PCF based on a modified decagonal (MD-PCF) arrangement is studied for broadband compensation covering the S-, C- and L-communication bands wavelength ranging from 1460 to 1625 nm. It is made known in theory that it is conceivable to attain negative dispersion coefficient about − 448 to − 835 ps/nm/km covering S-, C- and L-communication bands as well as a relative dispersion slope near to single mode fiber (SMF) of 0.0036 nm−1. On the basis of simulation results incorporating finite-element method based COMSOL multiphysics software, birefringence is obtained as high as 1.7 × 10−2, which is definately greater than conventional step-index fiber (SIF) and circular air- holes PCF so far. We also discuss the characteristics of chromatic dispersion, effective area and confinement loss of the designed PCF.
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- 2020
14. Smart grid state estimation and stabilisation
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Md. Masud Rana, Erric Wang, and Wei Xiang
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Semidefinite programming ,Computer science ,020209 energy ,020208 electrical & electronic engineering ,Linear matrix inequality ,Energy Engineering and Power Technology ,02 engineering and technology ,State (functional analysis) ,Covariance ,Variable (computer science) ,Matrix (mathematics) ,Smart grid ,Control theory ,0202 electrical engineering, electronic engineering, information engineering ,Schur complement ,Electrical and Electronic Engineering - Abstract
This paper proposes a smart grid state estimation and stabilisation algorithm. It relies on the principle of Bayesian filter structure where the smart grid state information is estimated in an iterative way. This approach assumes that the system state is a set of stochastic variables with mean and covariance values, which are shifted between the factor and variable nodes to obtain an accurate estimation. Afterwards, a semidefinite programming based optimal feedback controller is designed to stabilise the system states. Using the standard Schur complement, the system state matrix is written into the linear matrix inequality form. After solving the proposed convex optimisation problem, the designed feedback gain can stabilise the system states. Numerical results illustrate that the proposed scheme is able to estimate and stabilise the system states within a very short time.
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- 2018
15. Consensus-Based Smart Grid State Estimation Algorithm
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Wei Xiang, Li Li, Md. Masud Rana, and Steven W. Su
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Semidefinite programming ,Electrical & Electronic Engineering ,Mean squared error ,Computer science ,020209 energy ,Estimator ,02 engineering and technology ,Filter (signal processing) ,Computer Science Applications ,Control and Systems Engineering ,Convex optimization ,0202 electrical engineering, electronic engineering, information engineering ,Algorithm design ,Microgrid ,Electrical and Electronic Engineering ,Laplace operator ,Algorithm ,Information Systems - Abstract
© 2005-2012 IEEE. The distribution power subsystems are usually interconnected to each other, so the design of the interconnected optimal filtering algorithm for distributed state estimation is a challenging task. Driven by this motivation, this paper proposes a novel consensus filter based dynamic state estimation algorithm with its convergence analysis for modern power systems. The novelty of the scheme is that the algorithm is designed based on the mean squared error and semidefinite programming approaches. Specifically, the optimal local gain is computed after minimizing the mean squared error between the true and estimated states. The consensus gain is determined by a convex optimization process with a given suboptimal local gain. Furthermore, the convergence of the proposed scheme is analyzed after stacking all the estimation error dynamics. The Laplacian operator is used to represent the interconnected filter structure as a compact error dynamic for deriving the convergence condition of the algorithm. The developed approach is verified by using the renewable microgrid. It shows that the distributed scheme being explored is effective as it takes only 0.00004 seconds to properly estimate the system states and does not need to transmit the remote sensing signals to the central estimator.
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- 2018
16. A simple FDTD approach for the analysis and design of graphene based optical devices
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Ajay Krishno Sarkar, Md. Masud Rana, and Pejush Chandra Sarker
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Curl (mathematics) ,Materials science ,Infrared ,business.industry ,Terahertz radiation ,Graphene ,Finite-difference time-domain method ,Physics::Optics ,020206 networking & telecommunications ,02 engineering and technology ,Conductivity ,021001 nanoscience & nanotechnology ,Surface plasmon polariton ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,law.invention ,Optics ,law ,0202 electrical engineering, electronic engineering, information engineering ,Optoelectronics ,Electrical and Electronic Engineering ,0210 nano-technology ,business - Abstract
In this paper, a simple finite difference time domain (FDTD) approach is presented for the analysis and design of graphene based optical devices. Here, Maxwell’s curl equations are expressed in normalized flux density. Then, the FDTD method is incorporated with that expression. As the flux density is considered, graphene conductivity which depends on frequency is easily incorporated with the method. The proposed method is used to investigate properties of single and multilayer graphene sheets. To probe the transmission, reflection and surface plasmon polariton (SPP) mode characteristics of graphene in terahertz and far infared frequency regime, numerical examples are demonstrated. Validation of the method has been demonostrated comparing with existing methods and results available in the literature. The accuracy, stability and benefits of proposed method are also presented.
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- 2017
17. A review on recent advances of CNTs as gas sensors
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Md. Masud Rana, Sams Jarin, A N M Amanullah Tomal, M.R. Mohd Asyraf, and Dauda Sh. Ibrahim
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Sensing applications ,Computer science ,Nanotechnology ,02 engineering and technology ,Carbon nanotube ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,Industrial and Manufacturing Engineering ,0104 chemical sciences ,law.invention ,law ,Electrical and Electronic Engineering ,0210 nano-technology - Abstract
Purpose This review paper aims to focus on recent advances of carbon nanotubes (CNTs) to produce gas sensors. Gas sensors are widely used for monitoring hazardous gas leakages and emissions in the industry, households and other areas. For better safety and a healthy environment, it is highly desirable to have gas sensors with higher accuracy and enhanced sensing features. Design/methodology/approach In this review, the authors focus on recent contributions of CNTs to the technology for developing different types of gas sensors. The design, fabrication process and sensing mechanism of each gas sensor are summarized, together with their advantages and disadvantages. Findings Nowadays, CNTs are well-known materials which have attracted a significant amount of attention owing to their excellent electrical, electronic and mechanical properties. On exposure to various gases, their properties allow the detection of gases using different methods. Therefore, over recent years, researchers have developed several different types of gas sensors along with other types of sensors for temperature, strain, pressure, etc. Originality/value The main purpose of this review is to introduce CNTs as candidates for future research in the field of gas sensing applications and to focus on current technical challenges associated with CNT-based gas sensors.
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- 2017
18. Fundamental Scheme-Based Nonorthogonal LOD-FDTD for Analyzing Curved Structures
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Md. Masud Rana
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Curvilinear coordinates ,Mathematical optimization ,Computation ,Finite difference method ,Finite-difference time-domain method ,CPU time ,020206 networking & telecommunications ,02 engineering and technology ,020210 optoelectronics & photonics ,Perfectly matched layer ,0202 electrical engineering, electronic engineering, information engineering ,Time domain ,Boundary value problem ,Electrical and Electronic Engineering ,Algorithm ,Mathematics - Abstract
In this letter, nonorthogonal locally 1-D finite-difference time domain based on fundamental scheme (F-LOD-NFDTD) is presented for analyzing electromagnetic curved structures. The formulation based on fundamental scheme with curvilinear coordinate is performed in convenient matrix-operator-free forms in the right-hand side of resultant equations. The convolutional perfectly matched layer absorbing boundary condition is also incorporated. The nonorthogonal grids are used to fully mesh the computational domain that leads to efficient computation. A comparison to the conventional LOD-NFDTD in terms of CPU time and memory requirements reveals the merits of the proposed F-LOD-NFDTD method in terms of lighter calculation burden and higher efficiency. Numerical results are presented to illustrate the significance of the proposed approach.
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- 2017
19. Graphene coated fiber optic surface plasmon resonance biosensor for the DNA hybridization detection: Simulation analysis
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Md. Biplob Hossain, Reefat Inum, Md. Masud Rana, and Kamrun Nahar Shushama
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Optical fiber ,Materials science ,Graphene ,Nanotechnology ,02 engineering and technology ,021001 nanoscience & nanotechnology ,01 natural sciences ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,law.invention ,010309 optics ,Core (optical fiber) ,chemistry.chemical_compound ,chemistry ,law ,0103 physical sciences ,Fiber ,Electrical and Electronic Engineering ,Physical and Theoretical Chemistry ,Surface plasmon resonance ,0210 nano-technology ,Layer (electronics) ,Biosensor ,DNA - Abstract
In this paper, a graphene coated optical fiber surface plasmon resonance (SPR) biosensor is presented for the detection of DNA Hybridization. For the proposed sensor, a four layer model (fiber core /metal /sensing layer /sample) where a sheet of graphene (biomolecular recognition elements ( BRE)) acting as a sensing layer is coated around the gold film because graphene enhances the sensitivity of fiber optic SPR biosensor. Numerical analysis shows the variation of resonance wavelength and spectrum of transmitted power for mismatched DNA strands and for complementary DNA strands. For mismatched DNA strands variation is negligible whereas for complementary DNA strands is considerably countable. Proposed sensor successfully distinguishes hybridization and single nucleotide polymorphisms (SNP) by observing the variation level of resonance wavelength and spectrum of transmitted power.
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- 2017
20. Structured nonorthogonal ADI-FDTD for EM scattering from curved conducting bodies
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Mohammod Abdul Motin, Abu Sadat Md. Sayem, and Md. Masud Rana
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Curvilinear coordinates ,Discretization ,Mathematical analysis ,Finite-difference time-domain method ,020206 networking & telecommunications ,02 engineering and technology ,Domain (mathematical analysis) ,03 medical and health sciences ,symbols.namesake ,Alternating direction implicit method ,0302 clinical medicine ,Perfectly matched layer ,Maxwell's equations ,0202 electrical engineering, electronic engineering, information engineering ,symbols ,Boundary value problem ,Electrical and Electronic Engineering ,030217 neurology & neurosurgery ,Mathematics - Abstract
In this paper, structured non-orthogonal alternating direction implicit finite difference time domain (ADI-NFDTD) method based on curvilinear co-ordinate system is presented for analyzing electromagnetic scattering from curved structures. A formulation of ADI-NFDTD method for two dimensional problems is provided. A general procedure for structured nonorthogonal discretization grids into ADI-FDTD is also described. In our generalized approach, the non-orthogonal grid is used to model the computational domain which is bounded at the far end by curvilinear convolutional perfectly matched layer (CPML) absorbing boundary condition. In addition, numerical results are presented with a comparison with results available in the literature for various conducting bodies.
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- 2016
21. Design and analysis of graphene–MoS2 hybrid layer based SPR biosensor with TiO2–SiO2 nano film for formalin detection: numerical approach
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Saikat Mitra, Md. Biplob Hossain, Md. Masud Rana, Mostafizur Rahman, and Lway Faisal Abdulrazak
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Materials science ,business.industry ,Graphene ,Bilayer ,02 engineering and technology ,021001 nanoscience & nanotechnology ,01 natural sciences ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,law.invention ,010309 optics ,law ,Attenuated total reflection ,0103 physical sciences ,Transmittance ,Optoelectronics ,Work function ,Electrical and Electronic Engineering ,Surface plasmon resonance ,0210 nano-technology ,business ,Biosensor ,Plasmon - Abstract
In this paper, a Surface Plasmon Resonance (SPR) biosensor has been numerically developed that used Graphene–MoS2–Au–TiO2–SiO2 hybrid structure for the detection of formalin. This developed sensor has been sensed the presence the formalin based on attenuated total reflection (ATR) method by observing the change of “surface plasmon resonance angle-the change of minimum reflectance attributor” and “the resonance frequency characteristics (RFC)-maximum transmittance attributor”. Chitosan has been used as probe sensing medium to accelerate particular reaction with the formalin. Here, graphene is used as biomolecular recognition element because of its high adsorption ability and optical characteristics which helps to improve sensor sensitivity, MoS2 used for it has larger band gap, high fluroscence quenching ability, higher optical absorption efficiency, TiO2–SiO2 bilayer as the improvement of sensitivity and Gold (Au) as the sharp SPR curve. Numerical results give the impression that the variation of RFC and SPR angle for improper sensing of formalin is quiet negligible that confirms no formalin is detected whereas for proper sensing these change are considerably countable that confirms the detection of formalin. From the sensor sensitivity analysis, owing to add TiO2–SiO2 bilayer with Graphene–MoS2 Hybrid layer, maximum sensitivity of 85.375% has been numerically resulted. This high sensor performance is for taking advantages of Graphene surface high selectively which detect bio molecular compounds through pi-stacking force, larger work function (5.1 eV) of MoS2 which allows the high sensitive detection of bio targets and Rich plasmon happens at the TiO2–SiO2 interface.
- Published
- 2019
22. Improvement of the performance parameters of the surface plasmon resonance biosensor using Al2O3 and WS2
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Mohammad Hasibul Hasan Hasib, Reefat Inum, Jannati Nabiha Nur, Kamrun Nahar Shushama, Fairuj Asrafy, and Md. Masud Rana
- Subjects
Coupling ,Materials science ,business.industry ,Tungsten disulfide ,02 engineering and technology ,021001 nanoscience & nanotechnology ,01 natural sciences ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,010309 optics ,chemistry.chemical_compound ,Transition metal ,chemistry ,0103 physical sciences ,Optoelectronics ,Sensitivity (control systems) ,Prism ,Electrical and Electronic Engineering ,0210 nano-technology ,business ,Refractive index ,Biosensor ,Layer (electronics) - Abstract
Here, proposed Kretschmann configuration based surface plasmon resonance biosensor shows immense improvement in its performance parameters. This highly sensitive biosensor provides a higher value of quality factor and detection accuracy. We presented a five-layer model of a biosensor with two dimensional transition metal di-chalcogenides Tungsten disulfide (WS2) in addition with Al2O3 layer. By using one layer of WS2 with six layers of Al2O3, the highest sensitivity (227.5 °/RIU), detection accuracy (1.1123), and quality factor (28.26 RIU−1) can be achieved. CaF2 as coupling prism has also played a remarkable role in enhancing the performance parameters for its low refractive index.
- Published
- 2019
23. Multi-structural optical devices modeling using graphene tri-layer sheets
- Author
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Md. Masud Rana, Md. Biplob Hossain, and S. Muktadhir
- Subjects
Materials science ,Graphene ,business.industry ,Finite-difference time-domain method ,Physics::Optics ,02 engineering and technology ,021001 nanoscience & nanotechnology ,01 natural sciences ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,law.invention ,010309 optics ,Interferometry ,Optics ,Perfectly matched layer ,law ,0103 physical sciences ,Polariton ,Fiber optic splitter ,Boundary value problem ,Electrical and Electronic Engineering ,0210 nano-technology ,business ,Plasmon - Abstract
In this paper, multi-structural optical devices are designed based on graphene tri-layer sheets using finite deference time domain (FDTD) method with surface boundary condition (SBC). The perfectly matched layer (PML) absorbing boundary condition is also used with FDTD SBC to terminate the computational space. Numerical demonstration of plasmon polaritons (SPPs) wave propagating along variety shaped tri-layer graphene sheets is presented of the proposed method by means of utilizing the gate voltage dependent property of graphene. Finally, the theoretical fabrication of a straight line interferometer, L-shaped optical waveguide and T-shaped optical splitter based on the proposed model is presented. The paper provides an effective technique in modeling multi-layer graphene based high-speed and ultra-compact optical devices.
- Published
- 2016
24. Graphene Coated High Sensitive Surface Plasmon Resonance Biosensor for Sensing DNA Hybridization
- Author
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Md. Biplob Hossain and Md. Masud Rana
- Subjects
Electrical and Electronic Engineering ,Atomic and Molecular Physics, and Optics - Published
- 2016
25. DNA Hybridization Detection Based on Resonance Frequency Readout in Graphene on Au SPR Biosensor
- Author
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Md. Masud Rana and Md. Biplob Hossain
- Subjects
Materials science ,Article Subject ,Nanotechnology ,02 engineering and technology ,01 natural sciences ,law.invention ,010309 optics ,chemistry.chemical_compound ,law ,lcsh:Technology (General) ,0103 physical sciences ,Spr biosensor ,Transmittance ,Sensitivity (control systems) ,Electrical and Electronic Engineering ,Surface plasmon resonance ,Instrumentation ,Graphene ,DNA–DNA hybridization ,021001 nanoscience & nanotechnology ,chemistry ,Control and Systems Engineering ,lcsh:T1-995 ,0210 nano-technology ,Biosensor ,DNA - Abstract
This paper demonstrates a numerical modeling of surface plasmon resonance (SPR) biosensor for detecting DNA hybridization by recording the resonance frequency characteristics (RFC). The proposed sensor is designed based on graphene material as biomolecular recognition elements (BRE) and the sharp SPR curve of gold (Au). Numerical analysis shows that the variation of RFC for mismatched DNA strands is quiet negligible whereas that for complementary DNA strands is considerably countable. Here, graphene is used to perform faster immobilization between target DNA and probe DNA. The usage of graphene also changes the RFC that ensure hybridization of DNA event by utilizing its optochemical property. In addition, proposed sensor successfully distinguishes between hybridization and single-nucleotide polymorphisms (SNP) by observing the variation level of RFC and maximum transmittance. Therefore, the proposed frequency readout based SPR sensor could potentially open a new window of detection for biomolecular interactions. We also highlight the advantage of using graphene sublayer by performing the sensitivity analysis. Sandwiching of each graphene sublayer enhances 95% sensitivity comparing with conventional SPR sensor.
- Published
- 2016
26. An Overview of Distributed Microgrid State Estimation and Control for Smart Grids
- Author
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Li Li and Md. Masud Rana
- Subjects
distributed energy resource ,Computer science ,Distributed computing ,lcsh:Chemical technology ,Biochemistry ,Article ,Analytical Chemistry ,lcsh:TP1-1185 ,state estimation ,Electrical and Electronic Engineering ,smart grid ,wireless sensor networks ,Instrumentation ,business.industry ,Fossil fuel ,discrete-time algebraic Riccati equations ,Grid ,Atomic and Molecular Physics, and Optics ,Renewable energy ,Smart grid ,Embedded system ,Control system ,Distributed generation ,Microgrid ,Kalman filter ,business ,Energy source ,Wireless sensor network - Abstract
© 2015 by the authors; licensee MDPI, Basel, Switzerland. Given the significant concerns regarding carbon emission from the fossil fuels, global warming and energy crisis, the renewable distributed energy resources (DERs) are going to be integrated in the smart grid. This grid can spread the intelligence of the energy distribution and control system from the central unit to the long-distance remote areas, thus enabling accurate state estimation (SE) and wide-area real-time monitoring of these intermittent energy sources. In contrast to the traditional methods of SE, this paper proposes a novel accuracy dependent Kalman filter (KF) based microgrid SE for the smart grid that uses typical communication systems. Then this article proposes a discrete-time linear quadratic regulation to control the state deviations of the microgrid incorporating multiple DERs. Therefore, integrating these two approaches with application to the smart grid forms a novel contributions in green energy and control research communities. Finally, the simulation results show that the proposed KF based microgrid SE and control algorithm provides an accurate SE and control compared with the existing method.
- Published
- 2015
27. Sensitivity enhancement of graphene coated surface plasmon resonance biosensor
- Author
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Md. Biplob Hossain, Md. Masud Rana, Reefat Inum, and Kamrun Nahar Shushama
- Subjects
Materials science ,Silicon ,business.industry ,Graphene ,chemistry.chemical_element ,02 engineering and technology ,021001 nanoscience & nanotechnology ,01 natural sciences ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,law.invention ,010309 optics ,Transition metal ,chemistry ,law ,0103 physical sciences ,Optoelectronics ,Sensitivity (control systems) ,Electrical and Electronic Engineering ,Surface plasmon resonance ,0210 nano-technology ,business ,Biosensor ,Layer (electronics) ,Localized surface plasmon - Abstract
In this paper, a highly sensitive surface plasmon resonance biosensor is presented using angular interrogation. Due to low sensitivity of conventional biosensor, graphene/two-dimensional transition metal are used in surface plasmon resonance biosensor to improve the sensitivity. Here, we propose a seven layer model of biosensor which shows by incorporating silicon layer in addition of transition metal dichalcogenides MoS2 and graphene, the sensitivity of the proposed SPR biosensor can be greatly enhanced than the conventional gold film SPR sensors. It is observed that the highest sensitivity can be obtained by optimizing the structure with 8 nm thickness of silicon layer, one layer of MoS2 and one layer of graphene. The highest sensitivity of our proposed sensor is 210°/RIU.
- Published
- 2017
28. Microgrid state estimation and control for smart grid and Internet of Things communication network
- Author
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Li Li and Md. Masud Rana
- Subjects
Engineering ,business.industry ,Distributed computing ,Concatenated error correction code ,Control engineering ,Grid ,Smart grid ,Convolutional code ,Distributed generation ,Redundancy (engineering) ,Microgrid ,Electrical and Electronic Engineering ,Energy source ,business - Abstract
Given the significant concerns regarding carbon emissions from fossil fuels, global warming and energy crises, the renewable distributed energy resources (DERs) are having to be integrated in the smart grid (SG). The SG can spread intelligence of the energy distribution and control system from the central unit to long-distance remote areas, thus enabling accurate state estimation (SE) and wide-area real-time monitoring of these intermittent energy sources. In contrast to the traditional methods of SE, a novel approach for SG SE is proposed based on concatenated coding structures, where the grid state is treated as a dynamic outer code and the recursive systematic convolutional code is seen as a concatenated inner code for protecting and redundancy in the system state. Furthermore, Kalman filter (KF)-based online DERs SE and a discrete-time linear quadratic regulation method are proposed to control these state deviations for the SG and the Internet of Things (IoTs) communication network, which can exploit the far-reaching connectivity and privacy of DERs messages. Simulation results show that the proposed algorithm achieves 3 dB performance improvement compared with the existing KF.
- Published
- 2015
29. Segmented-Locally-One-Dimensional-FDTD Method for EM Propagation Inside Large Complex Tunnel Environments
- Author
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Ananda Sanagavarapu Mohan and Md. Masud Rana
- Subjects
Optics ,Wave propagation ,business.industry ,Computer science ,Acoustics ,Finite-difference time-domain method ,Path loss ,Electrical and Electronic Engineering ,business ,Electronic, Optical and Magnetic Materials - Abstract
We propose a novel segmented locally one dimensional finite difference time domain (S-LOD-FDTD) method for modeling the electromagnetic wave propagation inside electrically large tunnels. The proposed S-LOD-FDTD method reduces the computational resources by dividing the problem space into segments. To validate this method, we simulate the propagation in real tunnels and compare the results with the published measured data. The comparisons reveal that the proposed method can predict the fields accurately in real, large tunnels at longer ranges with significant savings in execution time and memory.
- Published
- 2012
30. Performance Study of Soft Local Binary Pattern over Local Binary Pattern under Noisy Images
- Author
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Md. Masud Rana and Sabina Yasmin
- Subjects
General Computer Science ,Image quality ,Computer science ,business.industry ,Local binary patterns ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,Pattern recognition ,02 engineering and technology ,Facial recognition system ,Edge detection ,0202 electrical engineering, electronic engineering, information engineering ,Canny edge detector ,020201 artificial intelligence & image processing ,Computer vision ,Artificial intelligence ,Electrical and Electronic Engineering ,business - Abstract
In this paper, the performance of soft local binary pattern (SLBP) method has been investigated with edge detection techniques for face recognition in case of noisy condition. Various edge detection techniques such as Canny, Robert and Log methods have been used with SLBP for recognizing faces. The results obtained using SLBP with various edge detection for noisy condition based on image quality measurement shows better recognition rate compared to the results obtained using local binary pattern (LBP). Simplified edge detection methods simplify the images as a result SLBP with edge detection requires less computation time compared with edge detection of LBP.
- Published
- 2016
31. Dense Wavelength Division Multiplexing Optical Network System
- Author
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Md. Masud Rana and Muhammad Abdul Goffar Khan
- Subjects
Physics ,Optical amplifier ,Optics ,General Computer Science ,Signal strength ,business.industry ,Wavelength-division multiplexing ,Bandwidth (signal processing) ,Fiber amplifier ,Electrical and Electronic Engineering ,business ,Telecommunications - Abstract
In this paper, a dense wavelength division multiplexing (DWDM) system with 64 modulated channels 50 GHz spacing covering 25.2-nm bandwidth has been demonstrated. When optical signals are to travel over long distances, it’s be faded and spread out. So, it is necessary to strengthen the signal at intervals. To keep the signal strength at same level in the DWMD system, Er-doped fiber amplifier (EDFA) has been used. The EDFA provides a gain across the bandwidth with 10 dB average gain and a gain shape variation peak-to-peak of about 1 dB. OptSim’s physical EDFA model has been used for DWMD systems . DOI: http://dx.doi.org/10.11591/ijece.v2i2.202
- Published
- 2011
32. Parametric Investigation of Near End and Far End Crosstalks in Printed Circuit Board Lands
- Author
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Md. Masud Rana, Kamal Hosain, and Md. Rabiul Islam
- Subjects
Physics ,General Computer Science ,business.industry ,Electrical engineering ,Ringing ,Inductance ,Printed circuit board ,Transmission line ,Frequency domain ,Ground bounce ,Common-mode signal ,Time domain ,Electrical and Electronic Engineering ,business - Abstract
Multi-conductor transmission line and interconnect carry signals with wide rage of frequencies from sending end to receiving end. The signal in one transmission line may be interupted by the unwanted contributions from the neighboring line conductors. If data speed increases, high frequency effects occur and the signals suffer from difficulties such as ringing, crosstalk, reflections, and ground bounce that seriously hamper the quality of the received signal. In order to estimate the signal quality, signal integrity analysis is needed. In this paper, an attempt has been made to investigate the sensitivity of the near and far end crosstalk on the parameters such as physical geometry of the conductors, electrical property of the substrate and the rise and fall time of excitation signal. The method of moments (MOM) is used to calculate the line parameters for different geometries. The simulation studies are carried out in TNT. The time domain and frequency domain analyses are performed using transmission line model of PSPICE. Moreover, a model is developed and tested in the laboratory. It is observed that the coupling inductance and capacitance vary with the variation of physical geometry and the substrate parameter. DOI: http://dx.doi.org/10.11591/ijece.v1i2.164
- Published
- 2011
33. LMS based blind channel estimation of SC-FDMA systems using variable step size and phase information
- Author
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Md. Masud Rana and Jinsang Kim
- Subjects
Variable (computer science) ,Noise ,Mean squared error ,Frequency-division multiple access ,Iterative method ,Estimation theory ,Electronic engineering ,Electrical and Electronic Engineering ,Algorithm ,Mathematics ,Communication channel ,Weighting - Abstract
The variable step size (VSS) channel estimation (CE) method is proposed which updates during each iteration to minimise the sum of the squares of the prior estimation errors up to that current time point. In addition, this CE algorithm uses a phase discriminating weighting scheme such that the algorithm reduces error owing to noise as well as decision error. The proposed CE scheme is of little bit higher complexity than the VSS-LMS scheme while improving mean square error performance.
- Published
- 2011
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