World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering最新文献
Pub Date : 2017-01-01DOI: 10.17706/IJCCE.2017.6.1.29-39
Nosan Kwak, Ltd. Maetan-dong Youngtong-gu Suwon Gyeunggi-do Korea Samsung Electronics Co., Sukjune Yoon, Soon-Yyong Park, Ji-min Kim, Sohee Lee, K. Roh
The essential information for location based service (LBS) is, of course, the location of a mobile robot providing the services. In outdoor environments, GPS is definitely the solution for LBS, however it is difficult to use it in indoor environments due to its weak signal strength. The two main radio-based approaches to the indoor localization are trilateration and fingerprinting, which require either many signal sources or heavy calibration. In this paper, we focus on the fact that the purpose of the localization is to provide services not at the whole locations but at certain locations. For this purpose, we propose a novel topological node generation method using anomaly scores of WiFi signal strengths, enabling to localize the robot under a single WiFi access point. Learning of sequential RSSIs with a hierarchical temporal memory model is able to detect a distinct node. We show the experimental results on node generation and recognition of a node using only one WiFi access point.
{"title":"Topological Nodes Generation Using Anomaly Scores of WiFi Signal Strengths","authors":"Nosan Kwak, Ltd. Maetan-dong Youngtong-gu Suwon Gyeunggi-do Korea Samsung Electronics Co., Sukjune Yoon, Soon-Yyong Park, Ji-min Kim, Sohee Lee, K. Roh","doi":"10.17706/IJCCE.2017.6.1.29-39","DOIUrl":"https://doi.org/10.17706/IJCCE.2017.6.1.29-39","url":null,"abstract":"The essential information for location based service (LBS) is, of course, the location of a mobile robot providing the services. In outdoor environments, GPS is definitely the solution for LBS, however it is difficult to use it in indoor environments due to its weak signal strength. The two main radio-based approaches to the indoor localization are trilateration and fingerprinting, which require either many signal sources or heavy calibration. In this paper, we focus on the fact that the purpose of the localization is to provide services not at the whole locations but at certain locations. For this purpose, we propose a novel topological node generation method using anomaly scores of WiFi signal strengths, enabling to localize the robot under a single WiFi access point. Learning of sequential RSSIs with a hierarchical temporal memory model is able to detect a distinct node. We show the experimental results on node generation and recognition of a node using only one WiFi access point.","PeriodicalId":23787,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering","volume":"113 1","pages":"29-39"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89296460","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 : 2017-01-01DOI: 10.17706/IJCCE.2017.6.2.91-103
A. Ly, N. Spyratos
{"title":"Metadata Management and Materialization of Composite Documents in a Digital Library","authors":"A. Ly, N. Spyratos","doi":"10.17706/IJCCE.2017.6.2.91-103","DOIUrl":"https://doi.org/10.17706/IJCCE.2017.6.2.91-103","url":null,"abstract":"","PeriodicalId":23787,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering","volume":"44 1","pages":"91-103"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89309984","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 : 2017-01-01DOI: 10.17706/IJCCE.2017.6.1.49-56
Yongna Liu, Lirong Wang, Wanping Li
The psychologic research find that learners' cognitive activitie had been affect by emotion in their learning process, specifically, positive emotion can promote cognitive activities, whereas negative emotion can hinder them. The affective state can be seen as a very strong predictor of thinking level in learning. Therefore, establishment of a intelligent environment and atmosphere which can recognize and adjust the emotion of students plays an important role in positive learning. Application of facial expression recognition is performed on Magic Learning which is a 3D Virtual Learning Environment (3DVLE) developed by our laboratory and experimental results suggest that our method is feasible and effective.
{"title":"Emotion Analysis Based on Facial Expression Recognition in Virtual Learning Environment","authors":"Yongna Liu, Lirong Wang, Wanping Li","doi":"10.17706/IJCCE.2017.6.1.49-56","DOIUrl":"https://doi.org/10.17706/IJCCE.2017.6.1.49-56","url":null,"abstract":"The psychologic research find that learners' cognitive activitie had been affect by emotion in their learning process, specifically, positive emotion can promote cognitive activities, whereas negative emotion can hinder them. The affective state can be seen as a very strong predictor of thinking level in learning. Therefore, establishment of a intelligent environment and atmosphere which can recognize and adjust the emotion of students plays an important role in positive learning. Application of facial expression recognition is performed on Magic Learning which is a 3D Virtual Learning Environment (3DVLE) developed by our laboratory and experimental results suggest that our method is feasible and effective.","PeriodicalId":23787,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering","volume":"8 1","pages":"49-56"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84778609","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}
Insider threat is a serious and increasing concern for many organizations. The group of individuals who operate within the organization have access to highly confidential and sensitive information, however, if they choose to act against the organization, with their privileged access authority and their extensive knowledge, they are well positioned to cause serious damage. Compared with vast amounts of normal daily operations, malicious behaviors are indeed small probability events, and are easily ignored. Thus, there is a desperate need to explore an effective approach to detect such suspicious behaviors. In order to solve this problem, we propose a two-stage algorithm to detect anomaly through analyzing user behavior based on activity log data collected in a real office automation system. In the first stage, we compare users’ behavioral activities with activities of his/her belonging role, and in the second stage, we compare individual behavioral activities with his/her activities in a window period. By adopting several effective features to describe users’ regular behavioral patterns, the analyst is capable of refining underlying abnormal users and abnormal periods to better support the network security administration.
{"title":"Abnormal Behavior Analysis in Office Automation System within Organizations","authors":"Yilin Wang, Yun Zhou, Cheng Zhu, Xianqiang Zhu, Weiming Zhang","doi":"10.17706/IJCCE.2017.6.3.212-220","DOIUrl":"https://doi.org/10.17706/IJCCE.2017.6.3.212-220","url":null,"abstract":"Insider threat is a serious and increasing concern for many organizations. The group of individuals who operate within the organization have access to highly confidential and sensitive information, however, if they choose to act against the organization, with their privileged access authority and their extensive knowledge, they are well positioned to cause serious damage. Compared with vast amounts of normal daily operations, malicious behaviors are indeed small probability events, and are easily ignored. Thus, there is a desperate need to explore an effective approach to detect such suspicious behaviors. In order to solve this problem, we propose a two-stage algorithm to detect anomaly through analyzing user behavior based on activity log data collected in a real office automation system. In the first stage, we compare users’ behavioral activities with activities of his/her belonging role, and in the second stage, we compare individual behavioral activities with his/her activities in a window period. By adopting several effective features to describe users’ regular behavioral patterns, the analyst is capable of refining underlying abnormal users and abnormal periods to better support the network security administration.","PeriodicalId":23787,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering","volume":"2050 1","pages":"212-220"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86546871","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 : 2017-01-01DOI: 10.17706/IJCCE.2017.6.3.181-192
Yi-Wei Jhang, Fang-Biau Ueng, Li-Der Jeng, Yu-Kuan Chang, You-Hao Lin
This paper proposes an advanced receiver with joint inter-carrier interference (ICI) self cancellation and channel equalization for multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) systems over rapidly time-varying channel environment. The existing schemes that deal with the ICI cancellation and channel equalization can’t provide satisfactory performance over time-varying channels. In term of error rate performance and low computational complexity, ICI self cancellation is the best choice. So, this paper proposes an adaptive receiver to deal with the problem of joint ICI self cancellation and channel equalization. We employ the adaptive phase rotations in the receiver to effectively track the CFO variations without feeding back the CFO estimate to the transmitter as required in traditional existing scheme. We also give some simulations to verify the proposed scheme.
{"title":"A Novel MIMO-OFDM Adaptive Receiver in Time-Varying Channels","authors":"Yi-Wei Jhang, Fang-Biau Ueng, Li-Der Jeng, Yu-Kuan Chang, You-Hao Lin","doi":"10.17706/IJCCE.2017.6.3.181-192","DOIUrl":"https://doi.org/10.17706/IJCCE.2017.6.3.181-192","url":null,"abstract":"This paper proposes an advanced receiver with joint inter-carrier interference (ICI) self cancellation and channel equalization for multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) systems over rapidly time-varying channel environment. The existing schemes that deal with the ICI cancellation and channel equalization can’t provide satisfactory performance over time-varying channels. In term of error rate performance and low computational complexity, ICI self cancellation is the best choice. So, this paper proposes an adaptive receiver to deal with the problem of joint ICI self cancellation and channel equalization. We employ the adaptive phase rotations in the receiver to effectively track the CFO variations without feeding back the CFO estimate to the transmitter as required in traditional existing scheme. We also give some simulations to verify the proposed scheme.","PeriodicalId":23787,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering","volume":"1 1","pages":"181-192"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76898878","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 : 2017-01-01DOI: 10.17706/IJCCE.2017.6.1.40-48
B. Özyurt, I. Dogru, M. Ali Akcayol
Routing is an important issue in Mobile ad hoc Networks (MANET). Several routing protocols have been developed in MANET so far. Dynamic Source Routing (DSR) is one of the most commonly used routing protocols in mobile ad hoc networks. DSR is a reactive routing protocol which means that when a node wants to send a packet, it has to make a route discovery to the destination node. When the mobility increases in the network, making route discovery and sending packet to the destination node becomes much more challenging. Increased mobility reduces the performance of all MANET routing protocols. DSR is no exception; increased mobility reduces the performance of DSR protocol and decreases its throughput. In this paper, we present our analysis about the effects of the “Route Cache Timeout” parameter on the performance of DSR protocol.
{"title":"Analyzing the Route Cache Timeout Parameter of DSR Protocol in Mobile Ad Hoc Networks","authors":"B. Özyurt, I. Dogru, M. Ali Akcayol","doi":"10.17706/IJCCE.2017.6.1.40-48","DOIUrl":"https://doi.org/10.17706/IJCCE.2017.6.1.40-48","url":null,"abstract":"Routing is an important issue in Mobile ad hoc Networks (MANET). Several routing protocols have been developed in MANET so far. Dynamic Source Routing (DSR) is one of the most commonly used routing protocols in mobile ad hoc networks. DSR is a reactive routing protocol which means that when a node wants to send a packet, it has to make a route discovery to the destination node. When the mobility increases in the network, making route discovery and sending packet to the destination node becomes much more challenging. Increased mobility reduces the performance of all MANET routing protocols. DSR is no exception; increased mobility reduces the performance of DSR protocol and decreases its throughput. In this paper, we present our analysis about the effects of the “Route Cache Timeout” parameter on the performance of DSR protocol.","PeriodicalId":23787,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering","volume":"54 1","pages":"40-48"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77217180","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 : 2017-01-01DOI: 10.17706/IJCCE.2017.6.3.161-172
Valentin Rwerekane, Maurice Ndashimye
Traditionally, addresses were used to direct people and helped in social activities; nowadays addresses are used in a wide range of applications, such as automated mail processing, vehicles navigation, urban planning and maintenance, emergency response, statistical analyses, marketing, and others, to ensure necessities induced by new information technologies and facility developments. On top of addresses primary use, postcodes systems were developed to comprehensively provide a variety of public and commercial services. Postcode being an integral part of an addressing system, if well-established, a postcode system brings further social-economic development benefits to a country. This paper aims at designing a postcode based on the Natural Area Coding (NAC). The design focuses on designing a standardized postcode that can fit into any addressing scheme and be used for towns and cities of any shapes from structured cities to slums. Design considerations of a fine-grained postcode (easy for humans, efficient for computerized systems and requiring less or no maintenance over time to improve its efficiency) have proven to be difficult to realize. Therefore, in this paper a new logic is illustrated whereby these considerations are rationally handled while simultaneously allowing the postcode to give a sense of directions and distance. The technique used in this paper can be tailored to a city of any size. As such, a city is divided up into concentric rectangles of which sizes vary from one to three level 3 NAC cells, each NAC cell containing approximately 30×30 plots of 20×50 m2. In this paper, a conversion algorithm is proposed to compute the postcode back and forth to NAC
{"title":"Natural Area Coding Based Postcode Scheme","authors":"Valentin Rwerekane, Maurice Ndashimye","doi":"10.17706/IJCCE.2017.6.3.161-172","DOIUrl":"https://doi.org/10.17706/IJCCE.2017.6.3.161-172","url":null,"abstract":"Traditionally, addresses were used to direct people and helped in social activities; nowadays addresses are used in a wide range of applications, such as automated mail processing, vehicles navigation, urban planning and maintenance, emergency response, statistical analyses, marketing, and others, to ensure necessities induced by new information technologies and facility developments. On top of addresses primary use, postcodes systems were developed to comprehensively provide a variety of public and commercial services. Postcode being an integral part of an addressing system, if well-established, a postcode system brings further social-economic development benefits to a country. This paper aims at designing a postcode based on the Natural Area Coding (NAC). The design focuses on designing a standardized postcode that can fit into any addressing scheme and be used for towns and cities of any shapes from structured cities to slums. Design considerations of a fine-grained postcode (easy for humans, efficient for computerized systems and requiring less or no maintenance over time to improve its efficiency) have proven to be difficult to realize. Therefore, in this paper a new logic is illustrated whereby these considerations are rationally handled while simultaneously allowing the postcode to give a sense of directions and distance. The technique used in this paper can be tailored to a city of any size. As such, a city is divided up into concentric rectangles of which sizes vary from one to three level 3 NAC cells, each NAC cell containing approximately 30×30 plots of 20×50 m2. In this paper, a conversion algorithm is proposed to compute the postcode back and forth to NAC","PeriodicalId":23787,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering","volume":"20 1","pages":"161-172"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90306633","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 : 2017-01-01DOI: 10.17706/ijcce.2017.6.2.137-150
M. Ooki
This paper presents a characteristic of data transmission in bus network in which each datum has a priority and the number of priority levels are three or more. In this bus network, each station is connected to a bus through a switching-hub which establishes a link from a sending station to a receiving station. When the receiving station is sending data or receiving data, the link cannot be established and the sending station has to wait a little waiting time (stand-by time). Then, by defining the link probability as a constant, the bus network is analyzed. Taking note of one of the sending stations with r(r≥3) sending buffers for data with priority, in steady state, a balance equation of the probabilities of the number of waiting data at the ready time of sending is expressed. From the equation, for each priority, probabilities of the number of waiting data, mean of the number of waiting data in the sending buffer and mean waiting time which is the time from the arrival time of a datum at the sending buffer to the beginning time of sending the datum are derived. The calculated values of mean waiting time are illustrated and mean waiting times with priority processing are compared with mean waiting time without priority processing. As a result, the influence of the link probability on data transmission with priority processing is clarified.
{"title":"On a Characteristic of Data Transmission with Three or More Priority Levels in Bus Network","authors":"M. Ooki","doi":"10.17706/ijcce.2017.6.2.137-150","DOIUrl":"https://doi.org/10.17706/ijcce.2017.6.2.137-150","url":null,"abstract":"This paper presents a characteristic of data transmission in bus network in which each datum has a priority and the number of priority levels are three or more. In this bus network, each station is connected to a bus through a switching-hub which establishes a link from a sending station to a receiving station. When the receiving station is sending data or receiving data, the link cannot be established and the sending station has to wait a little waiting time (stand-by time). Then, by defining the link probability as a constant, the bus network is analyzed. Taking note of one of the sending stations with r(r≥3) sending buffers for data with priority, in steady state, a balance equation of the probabilities of the number of waiting data at the ready time of sending is expressed. From the equation, for each priority, probabilities of the number of waiting data, mean of the number of waiting data in the sending buffer and mean waiting time which is the time from the arrival time of a datum at the sending buffer to the beginning time of sending the datum are derived. The calculated values of mean waiting time are illustrated and mean waiting times with priority processing are compared with mean waiting time without priority processing. As a result, the influence of the link probability on data transmission with priority processing is clarified.","PeriodicalId":23787,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering","volume":"11 1","pages":"137-150"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82659413","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}
Optical Intersatellite Links (OISLs) are wireless communications using optical signals to interconnect satellites. It is expected to be the next generation wireless communication technology according to its inherent characteristics like: an increased bandwidth, a high data rate, a data transmission security, an immunity to interference, and an unregulated spectrum etc. Optical space links are the best choice for the classical communication schemes due to its distinctive properties; high frequency, small antenna diameter and lowest transmitted power, which are critical factors to define a space communication. This paper discusses the development of free space technology and analyses the parameters and factors to establish a reliable intersatellite links using an optical signal to exchange data between satellites.
{"title":"Study and Analysis of Optical Intersatellite Links","authors":"Boudene Maamar, Xu Mai","doi":"10.5281/ZENODO.1124588","DOIUrl":"https://doi.org/10.5281/ZENODO.1124588","url":null,"abstract":"Optical Intersatellite Links (OISLs) are wireless communications using optical signals to interconnect satellites. It is expected to be the next generation wireless communication technology according to its inherent characteristics like: an increased bandwidth, a high data rate, a data transmission security, an immunity to interference, and an unregulated spectrum etc. Optical space links are the best choice for the classical communication schemes due to its distinctive properties; high frequency, small antenna diameter and lowest transmitted power, which are critical factors to define a space communication. This paper discusses the development of free space technology and analyses the parameters and factors to establish a reliable intersatellite links using an optical signal to exchange data between satellites.","PeriodicalId":23787,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering","volume":"23 1","pages":"717-721"},"PeriodicalIF":0.0,"publicationDate":"2016-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80072277","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}
A theoretical investigation on the effect of collector aspect ratio on the thermal performance of wavy finned absorber solar air heaters has been performed. For the constant collector area, the various performance parameters have been calculated for plane and wavy finned solar air heaters. It has been found that the performance of wavy finned solar air heater improved with the increase in the collector aspect ratio. The performance of wavy finned solar air heater has been found 30 percent higher than those of plane solar air heater. The obtained results for wavy fin solar air heaters are compared with the available experimental data of most common type solar air heaters.
{"title":"Effect of Collector Aspect Ratio on the Thermal Performance of Wavy Finned Absorber Solar Air Heater","authors":"Abhishek Priyam, P. Chand","doi":"10.5281/ZENODO.1124371","DOIUrl":"https://doi.org/10.5281/ZENODO.1124371","url":null,"abstract":"A theoretical investigation on the effect of collector aspect ratio on the thermal performance of wavy finned absorber solar air heaters has been performed. For the constant collector area, the various performance parameters have been calculated for plane and wavy finned solar air heaters. It has been found that the performance of wavy finned solar air heater improved with the increase in the collector aspect ratio. The performance of wavy finned solar air heater has been found 30 percent higher than those of plane solar air heater. The obtained results for wavy fin solar air heaters are compared with the available experimental data of most common type solar air heaters.","PeriodicalId":23787,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering","volume":"52 1","pages":"659-663"},"PeriodicalIF":0.0,"publicationDate":"2016-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90871300","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}
World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：