Pub Date : 2011-06-27DOI: 10.1109/ICSENGT.2011.5993423
Monire Sadat Miri, J. Ghahramani, M. Soleimani Farrokh, S. Rezakhani, A. M. Kordalivand
This essay presents utilizing of differential structures for microwave applications. First of all, a LNA single-ended was designed; then the basic circuit of the differential LNA was discussed finally, we illustrate the benefits of utilizing a differential approach with the design instants of a Low Noise Amplifier, a differential LC filter and a floating negative resistance topology. The LNA and active Filter were designed in the BiCMOS HBT process. ADS2010 was simulated to obtain the preliminary results.
{"title":"Design and simulation of HBT differential Low Noise Amplifier and LC active filter","authors":"Monire Sadat Miri, J. Ghahramani, M. Soleimani Farrokh, S. Rezakhani, A. M. Kordalivand","doi":"10.1109/ICSENGT.2011.5993423","DOIUrl":"https://doi.org/10.1109/ICSENGT.2011.5993423","url":null,"abstract":"This essay presents utilizing of differential structures for microwave applications. First of all, a LNA single-ended was designed; then the basic circuit of the differential LNA was discussed finally, we illustrate the benefits of utilizing a differential approach with the design instants of a Low Noise Amplifier, a differential LC filter and a floating negative resistance topology. The LNA and active Filter were designed in the BiCMOS HBT process. ADS2010 was simulated to obtain the preliminary results.","PeriodicalId":346890,"journal":{"name":"2011 IEEE International Conference on System Engineering and Technology","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116536149","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 : 2011-06-27DOI: 10.1109/ICSENGT.2011.5993421
M. Esmaeili, M. Shirvani
In this paper a simple method is presented for detecting of zeros location in a linear differential-difference equations with delay by using dominant gain concept and shown that it is much more general and representative than the conventional theory of asymptotic location of zeros. Dominant gain concept states that in a specific frequency band, the dynamic behavior of a quasi-polynomial traces the dynamics of that term in the quasi-polynomial which dominates in its gain with respect to the other term. If it is minimum phase, quasi-polynomial dynamic behavior is minimum phase that means resulting zeros of time delay parameters are in LHP. Also if it is non minimum phase, quasi-polynomial dynamic behavior is non minimum phase that means resulting zeros of time delay parameters are in RHP. This result is very important to design control structure for time delay system.
{"title":"Detecting of zeros locations in a linear differential-difference equation","authors":"M. Esmaeili, M. Shirvani","doi":"10.1109/ICSENGT.2011.5993421","DOIUrl":"https://doi.org/10.1109/ICSENGT.2011.5993421","url":null,"abstract":"In this paper a simple method is presented for detecting of zeros location in a linear differential-difference equations with delay by using dominant gain concept and shown that it is much more general and representative than the conventional theory of asymptotic location of zeros. Dominant gain concept states that in a specific frequency band, the dynamic behavior of a quasi-polynomial traces the dynamics of that term in the quasi-polynomial which dominates in its gain with respect to the other term. If it is minimum phase, quasi-polynomial dynamic behavior is minimum phase that means resulting zeros of time delay parameters are in LHP. Also if it is non minimum phase, quasi-polynomial dynamic behavior is non minimum phase that means resulting zeros of time delay parameters are in RHP. This result is very important to design control structure for time delay system.","PeriodicalId":346890,"journal":{"name":"2011 IEEE International Conference on System Engineering and Technology","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115431241","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 : 2011-06-27DOI: 10.1109/ICSENGT.2011.5993431
M. Ali, N. Ramli, M. Salleh, M. Tan
A compact of a reconfigurable rectangular microstrip slot patch antenna of operating frequencies in the range of (2–6) GHz is proposed for Wireless Local Area Network (WLAN) applications. It has one port excited with microstrip line feed mechanism. The proposed antenna consists of a single layer patch antenna with two parallel slots designed that can be controlled via two PIN diode switches. Two parallel slots are incorporated to perturb the surface current path, introducing local inductive effect that is responsible for the excitation of the second resonant mode. By adjusting the status of the switches state either on or off mode in simultaneously, the resonance frequencies can be varied, thus achieving frequency reconfigurable. A comprehensive parametric study has been carried out to understand the effects of various dimensional parameters (slots and PIN diode switches) and to optimize the performance of the antenna. This antenna is capable to achieve return loss less than −10dB and VSWR≤2 in multiband frequencies at 2.4GHz and 5.8GHz when both switches are ON mode while only in 2.4GHz can be achieved when both switches are OFF mode. The designed antennas have been also fabricate onto FR-4 and measured to compare the real results of return loss (S11) and voltage standing wave ratio (VSWR) with those obtained from the simulations. The proposed antenna is very promising for various modern communication applications.
{"title":"A design of reconfigurable rectangular microstrip slot patch antennas","authors":"M. Ali, N. Ramli, M. Salleh, M. Tan","doi":"10.1109/ICSENGT.2011.5993431","DOIUrl":"https://doi.org/10.1109/ICSENGT.2011.5993431","url":null,"abstract":"A compact of a reconfigurable rectangular microstrip slot patch antenna of operating frequencies in the range of (2–6) GHz is proposed for Wireless Local Area Network (WLAN) applications. It has one port excited with microstrip line feed mechanism. The proposed antenna consists of a single layer patch antenna with two parallel slots designed that can be controlled via two PIN diode switches. Two parallel slots are incorporated to perturb the surface current path, introducing local inductive effect that is responsible for the excitation of the second resonant mode. By adjusting the status of the switches state either on or off mode in simultaneously, the resonance frequencies can be varied, thus achieving frequency reconfigurable. A comprehensive parametric study has been carried out to understand the effects of various dimensional parameters (slots and PIN diode switches) and to optimize the performance of the antenna. This antenna is capable to achieve return loss less than −10dB and VSWR≤2 in multiband frequencies at 2.4GHz and 5.8GHz when both switches are ON mode while only in 2.4GHz can be achieved when both switches are OFF mode. The designed antennas have been also fabricate onto FR-4 and measured to compare the real results of return loss (S11) and voltage standing wave ratio (VSWR) with those obtained from the simulations. The proposed antenna is very promising for various modern communication applications.","PeriodicalId":346890,"journal":{"name":"2011 IEEE International Conference on System Engineering and Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125999131","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 : 2011-06-27DOI: 10.1109/ICSENGT.2011.5993422
N. Verma, Abhishek Roy, A. Salour
Fault diagnosis in reciprocating air compressors is essential for continuous monitoring of their performance and thereby ensuring quality output. Support Vector Machines (SVMs) are machine learning tools based on structural risk minimization principle and have the advantageous characteristic of good generalization. For this reason, four well-known and widely used SVM based methods, one-against-one (OAO), oneagainst-all (OAA), fuzzy decision function (FDF), and DDAG have been used here and an optimized SVM based technique is proposed for classification based fault diagnosis in reciprocating air compressors. The results obtained through implementation of all five techniques are thus compared as per their accuracy rate in percentages and the performance of the proposed method with 98.03 percent accuracy rate was found to be better than all other classification methods. With the compressor datasets being complex natured, proposed method is found to be of vital importance for classification based fault diagnosis pertaining to reciprocating air compressors.
{"title":"An optimized fault diagnosis method for reciprocating air compressors based on SVM","authors":"N. Verma, Abhishek Roy, A. Salour","doi":"10.1109/ICSENGT.2011.5993422","DOIUrl":"https://doi.org/10.1109/ICSENGT.2011.5993422","url":null,"abstract":"Fault diagnosis in reciprocating air compressors is essential for continuous monitoring of their performance and thereby ensuring quality output. Support Vector Machines (SVMs) are machine learning tools based on structural risk minimization principle and have the advantageous characteristic of good generalization. For this reason, four well-known and widely used SVM based methods, one-against-one (OAO), oneagainst-all (OAA), fuzzy decision function (FDF), and DDAG have been used here and an optimized SVM based technique is proposed for classification based fault diagnosis in reciprocating air compressors. The results obtained through implementation of all five techniques are thus compared as per their accuracy rate in percentages and the performance of the proposed method with 98.03 percent accuracy rate was found to be better than all other classification methods. With the compressor datasets being complex natured, proposed method is found to be of vital importance for classification based fault diagnosis pertaining to reciprocating air compressors.","PeriodicalId":346890,"journal":{"name":"2011 IEEE International Conference on System Engineering and Technology","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131932592","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 : 2011-06-27DOI: 10.1109/ICSENGT.2011.5993416
M. Esmaeili, M. Shirvani
Control of time delay processes is considered from a new view point. In this view point, time delay is considered as infinite RHP zeros that are transferred to the LHP zeros by adding a proper transfer function that is chosen based on dominant gain concept. As a result, the non minimum phase behavior of the original open loop changes to minimum phase behavior and all of the RHP zeros are removed from the open loop and the control loop performance is improved.
{"title":"Time delay compensation by A PID controller","authors":"M. Esmaeili, M. Shirvani","doi":"10.1109/ICSENGT.2011.5993416","DOIUrl":"https://doi.org/10.1109/ICSENGT.2011.5993416","url":null,"abstract":"Control of time delay processes is considered from a new view point. In this view point, time delay is considered as infinite RHP zeros that are transferred to the LHP zeros by adding a proper transfer function that is chosen based on dominant gain concept. As a result, the non minimum phase behavior of the original open loop changes to minimum phase behavior and all of the RHP zeros are removed from the open loop and the control loop performance is improved.","PeriodicalId":346890,"journal":{"name":"2011 IEEE International Conference on System Engineering and Technology","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125585398","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 : 2011-06-01DOI: 10.1109/ICSENGT.2011.5993452
Ros Shilawani S. Abdul Kadir, Z. H. Murat, Haslina Hashim, W. Muhamad
This paper present a preliminary study on the human body aura condition for smoker and non smoker using Resonant Field Imaging (RFI) system. This research involves 30 samples which 15 samples are smoker and the rest are non smoker. During this research, six point of the human body's frequency mainly focus on chakra area was recorded using RFI. The data was analyzed using aura interpretation for Human Body software by converting the frequency into color hence analyzing it using Energy Field Score and categorized the frequency. The results demonstrate that 33% of the non smokers are in excellent group whereby none of smoker falls into this group. This finding indicate that non smoker have higher energy field score as compared to smoker. Consequently, non smoker in particular are generally healthier than smoker.
本文利用磁共振场成像(RFI)系统对吸烟者和非吸烟者的人体气场状况进行了初步研究。这项研究涉及30个样本，其中15个样本是吸烟者，其余是非吸烟者。在本研究中，使用射频成像技术记录了主要集中在脉轮区域的人体频率的6个点。通过将频率转换为颜色，使用能量场评分(Energy Field Score)对频率进行分析，并对频率进行分类，使用人体aura interpretation软件对数据进行分析。结果表明，33%的非吸烟者属于优秀组，而没有吸烟者属于优秀组。这一发现表明，与吸烟者相比，非吸烟者的能量场得分更高。因此，不吸烟者通常比吸烟者更健康。
{"title":"A preliminary study on human body aura of smoker and non smoker using Resonant Field Imaging (RFI)","authors":"Ros Shilawani S. Abdul Kadir, Z. H. Murat, Haslina Hashim, W. Muhamad","doi":"10.1109/ICSENGT.2011.5993452","DOIUrl":"https://doi.org/10.1109/ICSENGT.2011.5993452","url":null,"abstract":"This paper present a preliminary study on the human body aura condition for smoker and non smoker using Resonant Field Imaging (RFI) system. This research involves 30 samples which 15 samples are smoker and the rest are non smoker. During this research, six point of the human body's frequency mainly focus on chakra area was recorded using RFI. The data was analyzed using aura interpretation for Human Body software by converting the frequency into color hence analyzing it using Energy Field Score and categorized the frequency. The results demonstrate that 33% of the non smokers are in excellent group whereby none of smoker falls into this group. This finding indicate that non smoker have higher energy field score as compared to smoker. Consequently, non smoker in particular are generally healthier than smoker.","PeriodicalId":346890,"journal":{"name":"2011 IEEE International Conference on System Engineering and Technology","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131663605","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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