{"title":"Intrinsic modification and interfacial behavior in a titanium-copper metal matrix composite","authors":"Y. Fouad, B. Rabeeh","doi":"10.1109/ICENGTECHNOL.2012.6396146","DOIUrl":"https://doi.org/10.1109/ICENGTECHNOL.2012.6396146","url":null,"abstract":"The application of hot uniaxial pressing has been carried out in the temperature range of 750-950 °C for 0.5, 1 and 2 h at uniaxial pressure of 3 MPa in vacuum. Ti/Cu-Zn/Ti foil-foil layup are hot pressed for a lamellar composite structure symmetrically arranged. Inter diffusion bonding between commercially pure titanium and Copper-Zinc (brass) is applied. The microstructure of the diffusion zone has been analyzed by optical and scanning electron microscopy (SEM). The inter diffusion of the diffusing species across the interface has been evaluated by energy dispersive X-ray spectroscopy EDX. The reaction products formed at the interface have been identified by X-ray diffraction technique. It has been observed that the diffusion zone is dominated by the presence of the low melting depressant (LMD) Zn that segregate into Ti side and the solid solution of β-Ti (solutes are Zn, Cu and Ni) close to the titanium. The presence of Cu and Zn and Ti has been found in the interphase reaction zone. It has been observed that the interfacial bond strength (~200 MPa) is highest for the couple processed at 800 °C and this value decreases with rise in joining temperature. The variation of strength of the transition joints is co-related with the microstructural characteristics of the diffusion zone. The application of brass (Cu-Zn) interlayer bonding of pure titanium introduced with different micro constituents. The control of interphase is dominant for composite processing.","PeriodicalId":149484,"journal":{"name":"2012 International Conference on Engineering and Technology (ICET)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124080669","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}
{"title":"High-resolution electric field sensor based on whispering gallery modes of a beam-coupled dielectric resonator","authors":"Amir R. Ali, T. Ioppolo, M. V. Ötügen","doi":"10.1109/ICENGTECHNOL.2012.6396117","DOIUrl":"https://doi.org/10.1109/ICENGTECHNOL.2012.6396117","url":null,"abstract":"This paper presents a high-resolution optical sensor concept for electric field detection. The sensing element is a coupled dielectric microsphere-beam. The material for both the sphere and the beam is polydimethylsiloxane (PDMS). The measurement principle is based on the whispering gallery optical mode (WGM) shifts of the microsphere. The external electric field imposes an electrtrostriction force on the dielectric beam, deflecting it. The beam, in turn compresses the sphere causing a shift in its WGM. An analysis is carried out along with preliminary experiments. Results show that electric fields as small as ~100 V/m can be detected using a 300 μm diameter sphere.","PeriodicalId":149484,"journal":{"name":"2012 International Conference on Engineering and Technology (ICET)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122524021","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}
{"title":"Biometric image protection based on discrete cosine transform watermarking technique","authors":"M. Isa, S. Aljareh","doi":"10.1109/ICENGTECHNOL.2012.6396130","DOIUrl":"https://doi.org/10.1109/ICENGTECHNOL.2012.6396130","url":null,"abstract":"This paper presents combined face recognition and watermarking technique to secure a biometric image and maintain the recognition rate. These days, with advanced technology, the biometric data can be stolen and faked which may be used in other applications that utilize the same biometric feature. The discrete cosine transform (DCT) watermarking technique is used to certify the biometric image belong to the legitimate user. We have tested the proposed scheme under several attacks. The results of the experimentations show that the face recognition rate performance almost does not degrade due to watermark embedding and the proposed scheme is robust against several attacks.","PeriodicalId":149484,"journal":{"name":"2012 International Conference on Engineering and Technology (ICET)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123281078","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}
{"title":"A dual band MIMO meta-material antenna for RFID applications","authors":"M. Abdalla, M. Foad, A. Ibrahim","doi":"10.1109/ICENGTECHNOL.2012.6396154","DOIUrl":"https://doi.org/10.1109/ICENGTECHNOL.2012.6396154","url":null,"abstract":"This paper presents a dual band MIMO metamaterial based antenna. The antenna demonstrates dual input/output, the first one operates at 2.45GHz and the second one operates at 5.8 GHz. The two individual antennas are designed employing only one left handed unit cell. The proposed MIMO antenna has the advantage of compactness (its size is only 2.2 × 4.2 cm2). The design represents size reduction of approximately 60 % compared to conventional patch antennas operating at the same frequencies. Moreover, better than 40 dB coupling isolation is achieved between the two inputs.","PeriodicalId":149484,"journal":{"name":"2012 International Conference on Engineering and Technology (ICET)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132604315","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}
{"title":"Fractional Fourier Transform OFDM system performance enhancement over doubly dispersive channels","authors":"M. Azmy, S. Elgamel, A. Aziz, K. El-barbary","doi":"10.1109/ICENGTECHNOL.2012.6396112","DOIUrl":"https://doi.org/10.1109/ICENGTECHNOL.2012.6396112","url":null,"abstract":"The fractional Fourier transform (FrFT) has been suggested to improve the performance of the OFDM over doubly dispersive channels that cannot be achieved with traditional OFDM even with complex equalizers. In this paper the performance of OFDM based FrFT is studied with multiple fractional orders at different Doppler shift. Simulation results demonstrate processing improvement due to using FrFT instead of Fourier Transform (FT) in OFDM system. The same bit error rate (BER) is achieved without increasing the transmitting signal to noise ratio (SNR) and processing improvements are gained up to 3 dB for different Doppler frequencies.","PeriodicalId":149484,"journal":{"name":"2012 International Conference on Engineering and Technology (ICET)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127305920","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}
{"title":"Needle eye temperature measurement at different speeds of sewing","authors":"A. Mazari, A. Havelka, F. Mazari","doi":"10.1109/ICENGTECHNOL.2012.6396164","DOIUrl":"https://doi.org/10.1109/ICENGTECHNOL.2012.6396164","url":null,"abstract":"In this article two methods are used to measure the temperature of needle eye during the high speed of sewing and the results are compared for calculating the precision in the measurement, Needle heatup is a big issue for apparel industry especially for automobile industry seat covers where a lot of synthetic materials are used which get damaged by needle heat at high speed of sewing machine, in this article thermocamera and thermocouple are used to calculate the precise temperature of needle eye and then 100% polyester 35×3 Tex thread is taken for sewing, the lockstitch sewing machine is run at 1000rpm, 2000rpm and 3000rpm respectively and the both methods are used to obtain the accurate needle temperature and finally thread tensile properties the article is very helpful in predicting the exact temperature of needle in lock stitch machine at different stages of sewing process.","PeriodicalId":149484,"journal":{"name":"2012 International Conference on Engineering and Technology (ICET)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128749742","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}
{"title":"Porting TRU64 UNIX™ on Avanti™ emulator","authors":"M. S. Hussien","doi":"10.1109/ICENGTECHNOL.2012.6396162","DOIUrl":"https://doi.org/10.1109/ICENGTECHNOL.2012.6396162","url":null,"abstract":"Real time processing is becoming an increasingly important discipline. It is one of the mandatory requirements in industrial applications in order to achieve the five general areas: determinism, responsiveness, user control, reliability and fail soft operation; but what is the solution if you have aging hardware like my company? You will meet big problems and huge workload to maintain and develop your system and its applications. How can you keep your legacies alive? You need an alternative approach. Emulation will allow you to use new hardware without having to change the application, improve up-time and reliability, save floor space, power and maintenance cost, make the application faster, and preserve the past investment in the application. In this paper I perform a case in my company which was TRU64 UNIX™ O/S installed on DEC Alpha servers™. This paper will explain the way of porting it into two virtual emulators Avanti™ and FreeAXP™ and the problems that faced us during porting.","PeriodicalId":149484,"journal":{"name":"2012 International Conference on Engineering and Technology (ICET)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115374957","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}
{"title":"Load balancing in cloud-based content delivery networks using adaptive server activation/deactivation","authors":"M. Mashaly, P. Kuhn","doi":"10.1109/ICENGTECHNOL.2012.6396140","DOIUrl":"https://doi.org/10.1109/ICENGTECHNOL.2012.6396140","url":null,"abstract":"Content delivery networks have been widely used for many years providing service for millions of users. Lately, many of these networks are migrating to the cloud for its numerous advantages such as lower costs, increased performance, availability and flexibility in installing new resources. This paper introduces a new approach towards load balancing as well as power reduction in cloud-based content delivery networks allowing for a controlled scaling of operational parameters within the tradeoff between power consumption and quality of experience (QoE). By applying a new proposed adaptive server activation/ deactivation model at each data center in the cloud, unutilized servers at the data center can be switched off to reduce the power consumption. This adaptive model also allows the data center to maintain its performance while being utilized up to 95%. Performance measures of data centers are crucial as there are certain user service level agreements (SLA) for the cloud subscribers that should not be violated; most important is the latency for users' requests. The proposed load balancing algorithm benefits from limited latency for requests by only shifting the load off a data center when it is almost fully loaded. When the load in a data center exceeds a critical level, processes are migrated to underloaded data centers within the cloud. The self-controlled adaptive resource management supports easing of the cloud management.","PeriodicalId":149484,"journal":{"name":"2012 International Conference on Engineering and Technology (ICET)","volume":"53 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114120047","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}
{"title":"Optimal study of distributed generation impact on electrical distribution networks using GA and generalized reduced gradient","authors":"S. R. Fahim, W. Helmy","doi":"10.1109/ICENGTECHNOL.2012.6396131","DOIUrl":"https://doi.org/10.1109/ICENGTECHNOL.2012.6396131","url":null,"abstract":"This paper presents the effect of Distributed Generators (DG) existence in the electrical power distribution networks taking IEEE 14 and IEEE 30 bus test feeders as proposed systems. The analysis is done to examine the effect on the overall system losses and voltage profile. The aim behind this study is to obtain the optimum location and penetration level of the added DG unit in order to decrease the losses and enhance the voltage profile. The optimization is done using two different optimization techniques, generalized reduced gradient (GRG) and genetic algorithm (GA). The power system dynamic program MATLAB is used for this study. The simulation results are analyzed to show the effectiveness of GA over the GRG algorithm.","PeriodicalId":149484,"journal":{"name":"2012 International Conference on Engineering and Technology (ICET)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127054367","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}