Simulation and Analysis of III V Characteristic and Bandgap Design for Heterojunction Laser Diode

This research is the analysis of computer based simulation design for the semiconductor laser diode. The paper is emphasized by analyzing the band structure and voltage current characteristics of AlGaAs GaAs for the laser diode. In this paper, bandgap variation temperature dependence, voltage current V I , band diagram of the p n junction for laser diode are discussed briefly. On the other hand, this paper is emphasized band structure design and voltage current calculation using the mathematical model. The AlGaAs GaAs device technology is used for high speed optical communication. 

by Thu Rein Ye Yint Win | Tin Tin Hla "Simulation and Analysis of III-V Characteristic and Bandgap Design for Heterojunction Laser Diode"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-5 , August 2019,

URL: https://www.ijtsrd.com/papers/ijtsrd26542.pdf 

Paper URL: https://www.ijtsrd.com/engineering/electronics-and-communication-engineering/26542/simulation-and-analysis-of-iii-v-characteristic-and-bandgap-design-for-heterojunction-laser-diode/thu-rein-ye-yint-win

call for paper Industrial Engineering, international journal Nuclear Engineering, ugc approved journals for engineering

Multiscale Modeling Approach for Prediction the Elastic Modulus of Percolated Cellulose Nanocrystal CNC Network

In this study the effective elastic modulus of cellulose nano crystal CNC network is evaluated using multi scale method and micro mechanical analysis. For this purpose, the elastic modulus of CNC water phases are randomly assigned to a two dimensional 2D checkerboard structure and the elastic response is evaluated. In addition, the effect of having a different number of phases CNC, water and interface is evaluated by assigning a discreet and continuous distribution of elastic modulus to checkerboard structure. When the number of phases increases dramatically, the distribution of phases is continuous and is defined with Wei bull distribution. The results show that for two phase materials CNC and water when the micro structure has organized pattern the rule of the mixture and numerical model provide the same effective modulus, however when the micro structure is completely random, the self consistent micro mechanical model should be used. Also, this study suggests 50 volume fraction as the percolation threshold for the CNC network with 10 GPa effective elastic modulus. The results from percolated multi phase network reveal that for micro structures with 4 phases and above, the percolated network converge to 35 GPa. 

by Mehrdad Bor | Jim Huang "Multiscale Modeling Approach for Prediction the Elastic Modulus of Percolated Cellulose Nanocrystal (CNC) Network"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-5 , August 2019,

URL: https://www.ijtsrd.com/papers/ijtsrd26553.pdf 

Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/26553/multiscale-modeling-approach-for-prediction-the-elastic-modulus-of-percolated-cellulose-nanocrystal-cnc-network/mehrdad-bor

call for paper Geological Engineering, international journal Gas Engineering, ugc approved journals for engineering

Design of Active Filter for Reducing Harmonic Distortion in Distribution Network

Power transmission and distribution systems are designed for operation with sinusoidal voltage and current waveform in constant frequency. Power electronic control devices due to their inherent non linearity draw harmonic and reactive power form the supply mains. The wide use power electronic equipment with linear load causes an increasing harmonics distortion in the ac mains currents. Harmonics component is a very serious and harmful problem in the distribution system. The main adverse effects of harmonic current and voltage on power system equipment are overheating, overloading, perturbation of sensitive control and electronic equipment, capacitor failure, communication interferences, process problem, motor vibration, resonances problem and low power factor. This paper describes the modelling of active filter with synchronous d q reference frame theory for harmonic compensation in distribution systems. The case study is carried out at Hlaingtharyar township distribution system. The model is implemented for harmonic analysis from simulation using a Matlab Simulink with the THD values obtained by practical measurement. 

by Khine Zar Maw "Design of Active Filter for Reducing Harmonic Distortion in Distribution Network"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-5, August 2019,

URL: https://www.ijtsrd.com/papers/ijtsrd26663.pdf 

Paper URL: https://www.ijtsrd.com/engineering/electrical-engineering/26663/design-of-active-filter-for-reducing-harmonic-distortion-in-distribution-network/khine-zar-maw

call for paper Communication Engineering, international journal Chassis Engineering, ugc approved journals for engineering

Fuzzy Based Algorithm for Cloud Resource Management and Task Scheduling

This paper presents a Fuzzy Logic based approach to manage VM status and VM configuration within the cloud environment. The aim of the approach is to serve task requests efficiently with minimal use of resource and power. The proposed technique uses Fuzzy based approach to calculate the VM's status and VMs configurations, depending upon the cloud resource availability and job resource requirements, and then a fuzzy logic based controller is used to control the status and configurations of the VM to serve the intended purpose afterwards. Controlling in this way reduces the active physical resources and the clouds power requirements. The proposed controller is tested for different load conditions against the standard controlling algorithm to validate the concept. The test results obtained show that in terms of QoS, resource management, and power savings, the proposed fuzzy logic controller based technique outperforms standard techniques. 

by Rashmi Singh Lodhi | Dr. R. K. Pateriya "Fuzzy Based Algorithm for Cloud Resource Management and Task Scheduling"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-5 , August 2019,

URL: https://www.ijtsrd.com/papers/ijtsrd26604.pdf 

Paper URL: https://www.ijtsrd.com/engineering/computer-engineering/26604/fuzzy-based-algorithm-for-cloud-resource-management-and-task-scheduling/rashmi-singh-lodhi

call for paper Geological Engineering, international journal Gas Engineering, ugc approved journals for engineering

Speed Control of DC Motor using PID Controller for Industrial Application

This paper is to design PID controller to supervise and control the speed response of the DC motor and MATLAB program is used for industrial application . PID controllers are widely used in a industrial plants because of their simplicity and robustness. The results obtained from simulation are approximately similar to that obtained by practical. Also the dynamic behavior is studied. 

by Manoj Kumar Ranwa | Ameen Uddin Ahmad "Speed Control of DC Motor using PID Controller for Industrial Application"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-5 , August 2019,

URL: https://www.ijtsrd.com/papers/ijtsrd26599.pdf

Paper URL: https://www.ijtsrd.com/engineering/electrical-engineering/26599/speed-control-of-dc-motor-using-pid-controller-for-industrial-application/manoj-kumar-ranwa

call for paper Industrial Engineering, international journal Nuclear Engineering, ugc approved journals for engineering

Design and Fabrication of Automatic Drain Cleaner

This paper describes about the design and fabrication of automatic drain cleaner. There are a large number of machines used for removing out the wastes from drains. Nowadays, automation plays a vital role in all industrial applications. The automatic drain cleaner can be used in domestic, industry, large plants, irrigation and drainage cleaning system. In order to overcome the problems in manual drain cleaning, Automatic Drain Cleaning System is implemented to clean and control the drainage level. Every automatic drain cleaner has four main components, namely DC motor, 12 V battery, chain drives and shafts. The rotational speed of the drive shaft is 26 rpm. But in this paper, only shaft design is calculated. The required power from a motor to drive this shaft is 60 W. In designing shaft, chain tension, sprocket load and bearing load are taken into account and also bending moment and torque are included. 

by Ma Yi Yi Khin | Mg Aung Myo San Hlaing | Ma Myat Win Khaing "Design and Fabrication of Automatic Drain Cleaner"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-5, August 2019,

URL: https://www.ijtsrd.com/papers/ijtsrd27869.pdf 

Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/27869/design-and-fabrication-of-automatic-drain-cleaner/ma-yi-yi-khin

call for paper Structural Engineering, international journal Transport engineering, ugc approved journals for engineering

Simplified Method for Substation Grounding System Design

This paper focused 230 66 kV, substation grounding system and calculation results of required parameters at location of Kalay region. The grounding system is essential to protect people working or walking in the vicinity of earthed facilities and equipments against the danger of electric shock. It provides the floor surface either assures an effective insulation from earth potential or effectively equipment to a close mesh grid. Calculations of grounding grid system in the substation area where the top soil layer resistivity is less than the bottom layer resistivity can be less the number of ground rod used in the grid because the value of Ground Potential Rise GPR is insignificantly different. To get desired parameters such as touch and step voltage criteria for safety, earth resistance, grid resistance, maximum grid current, minimum conductor size and electrode size, maximum fault current level and resistivity of soil are designed in detail consideration. 

by Aye Myo Thant | Cho Cho Win | Thant Zaw Oo "Simplified Method for Substation Grounding System Design"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-5, August 2019,

URL: https://www.ijtsrd.com/papers/ijtsrd26754.pdf 

Paper URL: https://www.ijtsrd.com/engineering/electrical-engineering/26754/simplified-method-for-substation-grounding-system-design/aye-myo-thant

call for paper Metallurgical Engineering, international journal Information Technology, ugc approved journals for engineering