Pub Date : 2018-01-01DOI: 10.4172/0976-4860.1000201
N. Raghavendra Sai, N. Raghavendrasai, K. SatyaRajesh
-One class grouping perceives the target class from each and every unique class using simply getting ready data from the goal class. One class characterization is fitting for those conditions where oddities are not spoke to well in the preparation set. One-class learning, or unsupervised SVM, goes for confining data from the beginning stage in the high-dimensional, pointer space (not the main marker space), and is an estimation used for special case area. Bolster vector machine is a machine learning method that is for the most part used for data examining and design perceiving. Bolster vector machines are overseen learning models with related learning counts that separate data and perceive plans, used for grouping and relapse examination. In the present paper, we are going to introduce a mixture characterization strategy by coordinating the "neighborhood Support Vector Machine classifiers" with calculated relapse strategies; i.e. using a separation and vanquish technique. The estimation container starting of crossover technique presentednow is still in Support Vector Machine Watchwords: Logistic Regression, SVM, one class classifier.
{"title":"A Novel Technique to Classify the Network Data by Using OCC with SVM","authors":"N. Raghavendra Sai, N. Raghavendrasai, K. SatyaRajesh","doi":"10.4172/0976-4860.1000201","DOIUrl":"https://doi.org/10.4172/0976-4860.1000201","url":null,"abstract":"-One class grouping perceives the target class from each and every unique class using simply getting ready data from the goal class. One class characterization is fitting for those conditions where oddities are not spoke to well in the preparation set. One-class learning, or unsupervised SVM, goes for confining data from the beginning stage in the high-dimensional, pointer space (not the main marker space), and is an estimation used for special case area. Bolster vector machine is a machine learning method that is for the most part used for data examining and design perceiving. Bolster vector machines are overseen learning models with related learning counts that separate data and perceive plans, used for grouping and relapse examination. In the present paper, we are going to introduce a mixture characterization strategy by coordinating the \"neighborhood Support Vector Machine classifiers\" with calculated relapse strategies; i.e. using a separation and vanquish technique. The estimation container starting of crossover technique presentednow is still in Support Vector Machine Watchwords: Logistic Regression, SVM, one class classifier.","PeriodicalId":90538,"journal":{"name":"International journal of advancements in computing technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86451477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-01-01DOI: 10.4172/0976-4860.1000214
F. R. Moreno, S. Cordova, Héctor Alej, R. Molina, Homero Jaime Rodríguez Centeno, G. Badilla
Based on the use of industrial and computing engineering tools, a new method was developed with a VEGAM matrix for the rapid and effective detection of the effects of the environment (climate and air pollution) on equipment and machines used in the electronics industry. This was done with a staff developed by experts from the National Technological Institute based in the Technological Institute of Mexicali, obtaining an efficiency of 95% in its application in the electronic industry of the city of Mexicali.
{"title":"New Analysis Methodology to Evaluate the Environmental Factors and the Deterioration of Metallic Surfaces in the Electronics Industry","authors":"F. R. Moreno, S. Cordova, Héctor Alej, R. Molina, Homero Jaime Rodríguez Centeno, G. Badilla","doi":"10.4172/0976-4860.1000214","DOIUrl":"https://doi.org/10.4172/0976-4860.1000214","url":null,"abstract":"Based on the use of industrial and computing engineering tools, a new method was developed with a VEGAM matrix for the rapid and effective detection of the effects of the environment (climate and air pollution) on equipment and machines used in the electronics industry. This was done with a staff developed by experts from the National Technological Institute based in the Technological Institute of Mexicali, obtaining an efficiency of 95% in its application in the electronic industry of the city of Mexicali.","PeriodicalId":90538,"journal":{"name":"International journal of advancements in computing technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72407396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-01-01DOI: 10.4172/0976-4860.1000209
Bahman Ghrbani Vagheie, Mansoure sheikhy
In this paper, based on PI design principles for multivariate systems, a control system is designed that can meet the control requirements such as tracking velocity and regulating stator current with considering effects of suspension system on propulsion system. The dynamical model of linear synchronous motor with DC excitation used in the EMS maglev trains for propulsion is presented. In this system, the magnetizing inductances in the direction of the d and q axes are dependent on suspension air gap. So, by changing the suspension air gap from its desired value due to disturbances, these parameters change and consequently affect the performance of the motor, and the motor will be deviated from work point and the train will not follow its desired speed. The control system designed can compensate effects suspension system on propulsion system. Finally, the simulations confirm the performance of this controller.
{"title":"Design of Multivariable Controller PI for Propulsion Control System of a Maglev Train EMS","authors":"Bahman Ghrbani Vagheie, Mansoure sheikhy","doi":"10.4172/0976-4860.1000209","DOIUrl":"https://doi.org/10.4172/0976-4860.1000209","url":null,"abstract":"In this paper, based on PI design principles for multivariate systems, a control system is designed that can meet the control requirements such as tracking velocity and regulating stator current with considering effects of suspension system on propulsion system. The dynamical model of linear synchronous motor with DC excitation used in the EMS maglev trains for propulsion is presented. In this system, the magnetizing inductances in the direction of the d and q axes are dependent on suspension air gap. So, by changing the suspension air gap from its desired value due to disturbances, these parameters change and consequently affect the performance of the motor, and the motor will be deviated from work point and the train will not follow its desired speed. The control system designed can compensate effects suspension system on propulsion system. Finally, the simulations confirm the performance of this controller.","PeriodicalId":90538,"journal":{"name":"International journal of advancements in computing technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73668248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-01-01DOI: 10.4172/0976-4860.1000204
A. Kanakaraj, Om Prakash
Hematological disorders refer to the diseases caused with the changes in blood cells or blood system such as Leukemia, Anemia, Malaria and Azotemia. Leukocytes are the cells of immune system derived in the bone marrow as hematopoietic stem cell. The presence of immature cells changes the granularity and geometry of leukocytes. Detection of white blood cells plays an important role in the diagnosis of diseases like leukemia. Features such as nucleus and cytoplasm area, average color co-ordinates and number of pixels in the nuclear perimeter are used. Accurate classification of human blood cells plays a decisive role in the diagnosis and treatment of diseases. Hematological disorders refer to the diseases caused with the changes in blood cells or blood system such as Leukemia, Anemia, Malaria and Azotemia. This paper explores the techniques used in the automatic segmentation of leukocytes using a new computing technique.
{"title":"Automatic Segmentation of Leukocytes for the Detection of Leukemia Using a New Computing Algorithm","authors":"A. Kanakaraj, Om Prakash","doi":"10.4172/0976-4860.1000204","DOIUrl":"https://doi.org/10.4172/0976-4860.1000204","url":null,"abstract":"Hematological disorders refer to the diseases caused with the changes in blood cells or blood system such as Leukemia, Anemia, Malaria and Azotemia. Leukocytes are the cells of immune system derived in the bone marrow as hematopoietic stem cell. The presence of immature cells changes the granularity and geometry of leukocytes. Detection of white blood cells plays an important role in the diagnosis of diseases like leukemia. Features such as nucleus and cytoplasm area, average color co-ordinates and number of pixels in the nuclear perimeter are used. Accurate classification of human blood cells plays a decisive role in the diagnosis and treatment of diseases. Hematological disorders refer to the diseases caused with the changes in blood cells or blood system such as Leukemia, Anemia, Malaria and Azotemia. This paper explores the techniques used in the automatic segmentation of leukocytes using a new computing technique.","PeriodicalId":90538,"journal":{"name":"International journal of advancements in computing technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86752389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-01-01DOI: 10.4172/0976-4860.1000205
M. G. Mouziraji, H. G. Menghari, M. Hosseinzade, J Shahbazi Karami, D. Wei, J. Maktoubian
More recently, several studies have been done to improve the mechanical properties of materials. During this period, various methods of SPD (severe plastic deformation (SPD)) have been used to produce Ultra-Fine-Grain (UFG) materials. One of the pioneers in replacing SPD is the elliptical cross-sectional flattened extrusion (ECSEE). In the present study, an optimal combination of the process parameters of the ECSEE method, such as the torsional angle, ellipticity and elliptical diameter ratio, to obtain the maximum effective pressure and minimum punch force, as well as the minimum subsequent error in the cross section of the ABAQUS Software for modeling Numeric done. Due to the design of the central composite test, models of punch force response levels, effective pressure and subsequent error are generated through FE simulation. The simulation results showed that the effective strain was significantly affected by the rotation angle, diameter ratio and channel length. After two ECSEE courses, power ranged from 384 MPa to 340 MPa and its life span was reduced from 15% to 8%. Also, the FEM results indicate that the amount of effective pressure on the surface is greater than the center of the ECSEE pen. The results showed that the torsional angle of 120°, the length of the diameter of 16 and the ratio of the axis to 1.45, the optimal solution give the desired quality characteristics.
{"title":"Enhancing Mechanical Property of Al7075 by Using Elliptical Cross- Sectioned Spiral Equal-Channel Extrusion: Experimental, Numerical and Optimization Approach","authors":"M. G. Mouziraji, H. G. Menghari, M. Hosseinzade, J Shahbazi Karami, D. Wei, J. Maktoubian","doi":"10.4172/0976-4860.1000205","DOIUrl":"https://doi.org/10.4172/0976-4860.1000205","url":null,"abstract":"More recently, several studies have been done to improve the mechanical properties of materials. During this period, various methods of SPD (severe plastic deformation (SPD)) have been used to produce Ultra-Fine-Grain (UFG) materials. One of the pioneers in replacing SPD is the elliptical cross-sectional flattened extrusion (ECSEE). In the present study, an optimal combination of the process parameters of the ECSEE method, such as the torsional angle, ellipticity and elliptical diameter ratio, to obtain the maximum effective pressure and minimum punch force, as well as the minimum subsequent error in the cross section of the ABAQUS Software for modeling Numeric done. Due to the design of the central composite test, models of punch force response levels, effective pressure and subsequent error are generated through FE simulation. The simulation results showed that the effective strain was significantly affected by the rotation angle, diameter ratio and channel length. After two ECSEE courses, power ranged from 384 MPa to 340 MPa and its life span was reduced from 15% to 8%. Also, the FEM results indicate that the amount of effective pressure on the surface is greater than the center of the ECSEE pen. The results showed that the torsional angle of 120°, the length of the diameter of 16 and the ratio of the axis to 1.45, the optimal solution give the desired quality characteristics.","PeriodicalId":90538,"journal":{"name":"International journal of advancements in computing technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89286211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-01-01DOI: 10.4172/0976-4860.1000212
Hassan Arroni, Menghari Gh, J. Khojasteh, M. G. Mouziraji, S. Mouloodi
Phenomenon of forward slip during the rod rolling occurs due to the fact that roller and rod are moved. Over forward slip causes elongation and often compaction in the rod and also failure in the end manufacture of the rod. In this investigation, by employing finite element method, a three-dimensional simulation is performed on the No-Twist mill process in the rod rolling. Some notable points such as the geometry extraction of rolling line of end product, rod velocity during rolling, neutral angle, height on neutral plane, and forward slip in No-twist mills are studied. Furthermore, an investigation of influential parameters such as coefficient friction between the roller and the rod, initial velocity, initial rod temperature, and the roller rotation velocity on the forward slip are carried out. Eventually, the contour of stress and temperature distribution during the rod as well as in rolling path is studied. Moreover, in order to obtain the mechanical properties of desired steel, the standard models of hot tensile experiment are performed. In addition, in order to attain the different strain rates, a simple tensile experiment are performed. It can be concluded that as the strain rate increases, the yield point and the ultimate tensile strength point increases and decreases, respectively. Moreover, the modulus of elasticity decreases by increasing the temperature. In addition, three-dimensional simulation of rod rolling in No-Twist mill process, a discussion on the simulation results, and computation of forward slip and other parameters were done by ABAQUS/Explicit v.6.14 software.
{"title":"Experimental and Finite Element Investigation of Forward Slip in Rod Rolling and the Influences on Rolled Bars Process","authors":"Hassan Arroni, Menghari Gh, J. Khojasteh, M. G. Mouziraji, S. Mouloodi","doi":"10.4172/0976-4860.1000212","DOIUrl":"https://doi.org/10.4172/0976-4860.1000212","url":null,"abstract":"Phenomenon of forward slip during the rod rolling occurs due to the fact that roller and rod are moved. Over forward slip causes elongation and often compaction in the rod and also failure in the end manufacture of the rod. In this investigation, by employing finite element method, a three-dimensional simulation is performed on the No-Twist mill process in the rod rolling. Some notable points such as the geometry extraction of rolling line of end product, rod velocity during rolling, neutral angle, height on neutral plane, and forward slip in No-twist mills are studied. Furthermore, an investigation of influential parameters such as coefficient friction between the roller and the rod, initial velocity, initial rod temperature, and the roller rotation velocity on the forward slip are carried out. Eventually, the contour of stress and temperature distribution during the rod as well as in rolling path is studied. Moreover, in order to obtain the mechanical properties of desired steel, the standard models of hot tensile experiment are performed. In addition, in order to attain the different strain rates, a simple tensile experiment are performed. It can be concluded that as the strain rate increases, the yield point and the ultimate tensile strength point increases and decreases, respectively. Moreover, the modulus of elasticity decreases by increasing the temperature. In addition, three-dimensional simulation of rod rolling in No-Twist mill process, a discussion on the simulation results, and computation of forward slip and other parameters were done by ABAQUS/Explicit v.6.14 software.","PeriodicalId":90538,"journal":{"name":"International journal of advancements in computing technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88267435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-01-01DOI: 10.4172/0976-4860.1000210
Yan Lu, Qin Huang
This paper puts forward an improved K-SVD object detection algorithm for the problem of multiple noise sources in underground mine video. Firstly, the background modeling is applied in the video; then, the improved non-local mean filtering algorithm is used to enhance the image quality; finally, the improved image is processed by the sparse representation algorithm to further detect the moving object. In order to verify the effectiveness of the proposed algorithm, the algorithm and other algorithms are applied to video object detection in two different scenarios. The experimental results show that, in the underground mine video, the proposed algorithm can increase the accuracy by more than 8% compared with the traditional K-SVD algorithm, and the proportion of error points decreases by about 25%. Better detection of the moving object is achieved by the proposed algorithm.
{"title":"Object Detection Algorithm in Underground Mine Based on Sparse Representation","authors":"Yan Lu, Qin Huang","doi":"10.4172/0976-4860.1000210","DOIUrl":"https://doi.org/10.4172/0976-4860.1000210","url":null,"abstract":"This paper puts forward an improved K-SVD object detection algorithm for the problem of multiple noise sources in underground mine video. Firstly, the background modeling is applied in the video; then, the improved non-local mean filtering algorithm is used to enhance the image quality; finally, the improved image is processed by the sparse representation algorithm to further detect the moving object. In order to verify the effectiveness of the proposed algorithm, the algorithm and other algorithms are applied to video object detection in two different scenarios. The experimental results show that, in the underground mine video, the proposed algorithm can increase the accuracy by more than 8% compared with the traditional K-SVD algorithm, and the proportion of error points decreases by about 25%. Better detection of the moving object is achieved by the proposed algorithm.","PeriodicalId":90538,"journal":{"name":"International journal of advancements in computing technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76991947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-01-01DOI: 10.4172/0976-4860.1000208
I. A. Alkadir, M. Jawhar
The aim of this paper is to improve the oxidation resistance of Inconel 600 alloy by diffusion coating. In this study, (Si and Al) and (Al, Si and Y2 O3 ) were simultaneously deposited by cementation process into Inconel 600 alloy at 1120°C for the different times (2,4,6,8)hours. The pack powder mixture consists of 18Al-8Si-2NH4 Cl-72Al2 O3 (wt.%) for silicon modified aluminide diffusion coating and replaced 1% from Al2 O3 by Y2 O3 for yttria doped silicon modified aluminide diffusion coating. Cyclic oxidation was carried out at 50 hours at 900°C, 5 hours for each cycle. The results showed that the coatings microstructure consists of two layers: outer layer and inter-diffusion zone. The best oxidation resistance was found for the deposition by yttria-doped silicon modified aluminide diffusion coating from 6-8 hours of coating time. The phases formed after cyclic oxidation for both coated type and uncoated of Inconel 600 alloy are Ni, NiO, NiFe2 O4 , (Cr,Fe)2 O3 , AlNi, CrO3 , α-Al2 O3 , and Y4 Al2 O9
{"title":"Improvement of Oxidation Resistance of Inconel 600 Alloy by Pack Cementation Process","authors":"I. A. Alkadir, M. Jawhar","doi":"10.4172/0976-4860.1000208","DOIUrl":"https://doi.org/10.4172/0976-4860.1000208","url":null,"abstract":"The aim of this paper is to improve the oxidation resistance of Inconel 600 alloy by diffusion coating. In this study, (Si and Al) and (Al, Si and Y2 O3 ) were simultaneously deposited by cementation process into Inconel 600 alloy at 1120°C for the different times (2,4,6,8)hours. The pack powder mixture consists of 18Al-8Si-2NH4 Cl-72Al2 O3 (wt.%) for silicon modified aluminide diffusion coating and replaced 1% from Al2 O3 by Y2 O3 for yttria doped silicon modified aluminide diffusion coating. Cyclic oxidation was carried out at 50 hours at 900°C, 5 hours for each cycle. The results showed that the coatings microstructure consists of two layers: outer layer and inter-diffusion zone. The best oxidation resistance was found for the deposition by yttria-doped silicon modified aluminide diffusion coating from 6-8 hours of coating time. The phases formed after cyclic oxidation for both coated type and uncoated of Inconel 600 alloy are Ni, NiO, NiFe2 O4 , (Cr,Fe)2 O3 , AlNi, CrO3 , α-Al2 O3 , and Y4 Al2 O9","PeriodicalId":90538,"journal":{"name":"International journal of advancements in computing technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83290059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-01-01DOI: 10.4172/0976-4860.1000203
Lu Guizhen, Cao Zhi
The accurate prediction for wave propagation field is very important in wireless communication, which can improve the quality in the wireless communication. However, the field prediction in complex environments is a not easy problem. In order to improve the accuracy of field prediction, many methods are presented. The stochastic differential (SDE) method is presented to study the wave propagation in the complexed environment. First, the SDE model is constructed for the wave propagation. Then the simulation parameters in the SDE model are explained and determined to improve the loss prediction of wave propagation. The field experiment is performed in the Guomao and Xijiao area in Beijing. The SDE method is used to analyze the experiment data. The simulation is performed and the simulation results show the SDE model can give more reasonable prediction for the complexed propagation environment.
{"title":"SDE Model for Wave Propagation Prediction in Complex Environments","authors":"Lu Guizhen, Cao Zhi","doi":"10.4172/0976-4860.1000203","DOIUrl":"https://doi.org/10.4172/0976-4860.1000203","url":null,"abstract":"The accurate prediction for wave propagation field is very important in wireless communication, which can improve the quality in the wireless communication. However, the field prediction in complex environments is a not easy problem. In order to improve the accuracy of field prediction, many methods are presented. The stochastic differential (SDE) method is presented to study the wave propagation in the complexed environment. First, the SDE model is constructed for the wave propagation. Then the simulation parameters in the SDE model are explained and determined to improve the loss prediction of wave propagation. The field experiment is performed in the Guomao and Xijiao area in Beijing. The SDE method is used to analyze the experiment data. The simulation is performed and the simulation results show the SDE model can give more reasonable prediction for the complexed propagation environment.","PeriodicalId":90538,"journal":{"name":"International journal of advancements in computing technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91157571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-01-01DOI: 10.4172/0976-4860.1000211
M. P. Reddy
This paper describes the design of a 6 element Yagi Uda antenna for VHF band applications. It consists of a dipole, reflector and four directors. The design frequency (165 MHz) is chosen at the middle of the VHF band (30 to 300 MHz). Increasing the height of the reflector significant improvement in gain and directivity is achieved. The antenna is designed and simulated in CST microwave studio.
{"title":"Directional Yagi Uda Antenna for VHF Applications","authors":"M. P. Reddy","doi":"10.4172/0976-4860.1000211","DOIUrl":"https://doi.org/10.4172/0976-4860.1000211","url":null,"abstract":"This paper describes the design of a 6 element Yagi Uda antenna for VHF band applications. It consists of a dipole, reflector and four directors. The design frequency (165 MHz) is chosen at the middle of the VHF band (30 to 300 MHz). Increasing the height of the reflector significant improvement in gain and directivity is achieved. The antenna is designed and simulated in CST microwave studio.","PeriodicalId":90538,"journal":{"name":"International journal of advancements in computing technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89361469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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