Asian Journal of Convergence in Technology
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Study of Piezoelectric Energy Harvester
Get PDFThis work presents a miniature piezoelectric model that analyses the generated electrical energy occurring from the variations in the acceleration. It consists of a seismic energy harvester or a bimorph whichisfixedtoavibratingsourceatoneendandaproof masstoanotherend.Thebimorphisatgroundpotential and two electrodes are placed at the outer surface of the cantilever beam. A fixed electric load calculates the frequency of vibration and the acceleration thus caused by the virtue of DC output voltage is found to be linear. Various Piezoelectric materials are used to analyze the vibration and acceleration on the model. This energy harvesters find applications in volcanic seismic equipment’s as this modeled system can provide a small amount of energy to detect the seismicwaves
GPS TRACKING SYSTEM BASED ON SETTING WAYPOINT USING GEO-FENCING
Get PDFIn this paper we propose an Android-basedapplication to help working parents keep a track of theirchildren’s whereabouts in their daily lives. To effectively track auser’s movements and where they are, we first propose anefficient and effective method to define a geo-fence forpredefined points on a map. This method gets activated when theuser enters a certain fence area and sends a trigger. The locationupdates are output to parents in the form of SMS or an appnotification. Performance of the proposed waypoint algorithm isquantitatively evaluated. This is beneficial for working parentswho cannot be around their children all the time and thushelping them in knowing their child is safe through real-timemonitoring or via SMS 
Empirical Ratio of Higher Optical Transitions in Semiconducting SWCNTs
Get PDFIn this work, the ‘ratio problem’ among higheroptical transition energies (4th, 5th and 6th transitions) ofsemiconducting single-wall carbon nanotube is discussed. Anumber of semiconducting single-wall carbon nanotubes having(n – m) familyrange 2 to 32 with mod (n-m, 3) ≠0 and havingdiameter range 1.48nm to 3.44nm are considered. Higher opticaltransition energies of all those tubes are recorded from variousexperimental reports based on fluorescence and Ramanspectroscopy. Based on that observation, ratio betweenconsecutive higher transition energies for all semiconducting tubeis expressed empirically through some empirical expressions interms of diameter, (n- m) family and mod value. The empiricalratio matched very well with experiment ratio over the fulldiameter range. The proposed empirical way to expressing thisratio may greatly help in finding the proper ratio of higheroptical transitions without depending on experimental values ofthese transitions.The generated pattern from the plot of thisempirical ratio can also help in Photoluminescence basedchirality assignment
DESIGN AND ANALYSIS OF BUCKET ELAVATOR
Get PDFBucket elevators are the most used systems for vertical transport of bulk, dry, wet and even liquid materials. It is designed with various options of height, speed and constructive details depending on the type of material to be transported. The main aim of the project is to Design and Analyze elevator bucket using the two different materials. This can be achieved from finite element approach. For this a 3D model of bucket of elevator will be modeled using CATIA and analyzed using ANSY
Neural Network based ECG Anomaly Detection on FPGA
Get PDFThis paper presents FPGA-based ECG arrhythmia detection using an Artificial Neural Network(ANN). The objective is to implement a neural network-based machine learning algorithm on FPGA to detect anomalies in ECG signals, with a better performance and accuracy, compared to statistical methods. An implementation with Principal Component Analysis (PCA) for feature reduction and a hybrid approach which include multi-layer perceptron (MLP) and Probabilistic neural network (PNN) for classification, proved superior to other algorithms. For implementation on FPGA, the effects of several parameters and simplification on performance, accuracy and power consumption were studied. Piecewise linear approximation for activation functions and fixed point implementation were effective methods to reduce the amount of needed resources. The resulting neural network with twelve inputs and six neurons in the hidden layer, achieved, in spite of the simplifications, the same overall accuracy as simulations with floating point number representation. An accuracy of 99.82% was achieved on average for the MIT-BIH database
Spectrum Sensing in Cognitive Radio by Advanced Cuckoo Search
Get PDFThe radio spectrum is a naturally limitedresource which is needed for wireless communication systems.Cognitive Radio (CR) is a suitable technology that can improvethe spectrum utilization efficiency. Spectrum utilization can beenhanced by allocating licensed band to secondary user(SU)/unlicensed user when the primary user (PU)/licensed useris absent. The key feature of the CR is spectrum sensing. Theaim of this paper is to sense the spectrum holes or channels andif primary user is not present then provide those emptychannels to secondary users by using Advanced Cuckoo Searchmethod (ACS). By using ACS method, the time of capturingfree channels is reduced as compared to other methods.Furthermore, simulation is done to study the performance ofproposed method, which shows the proposed scheme is moreefficient as compared to existing scheme
Text Image Extraction and Summarization
Get PDFwith the huge amount of increase in data thesedays data processing has become very important. It filtersa large amount of data. The text mining tool finds relationbetween the words in text content and analyzes the resultsas well. Deriving quality information from text forms thecrux of data analysis or text mining. This paper focuses ona text mining application. Text information present inimages is recognized and is summarized according torequirement, i.e. number of lines that text needs tosummarize is dependent on user. Text mining thus is usedto save time of the user, increase the data efficiency. It isused to make computation on data that a human woulddefinitely fail to do, that is for analytics of large volumes ofdata. Hence text image extraction and summarization is anecessity in the current scenario. If the efficiency of theproposed model is optimized, this model of Text ImageExtraction and Summarization can be very beneficial. Itcan used as a ready to go , click image and get summaryapplication in a variety of situations. In this proposedmodel, even the number of lines the content has to bespecified, thus ensuring that the extent of summarization iscompletely user controlled
Secure Outsourcing of Linear Programming Solver in Cloud Computing: A Survey
Get PDFThere are currently major concerns about howto safeguard and process the data processed by infection.Innumerable industrial, figuring and optimization methodsare being used to resolve this problem. The problem has beenfixed for secure outsourcing for large issues. In this paper, theterms required in Cloud Security have been presented. Theprivacy feats of secure cloud are used to frustrate, to achievemore aspects of security. While cloud computing is being usedto outsource large scale computer outsourced to the cloud,data privacy has become a major problem. In this paper,modern cryptographic techniques, which have been sourcingwith research work proposed in the previous years. Based onsome flaw fixes, the current situation has been identified.There is also the motivation for this paper problem and futureresearch guidelines
Development of cost and time engineering system in construction projects
Get PDFTo give proper shape to the methodological basis of professional construction management it is possible to discuss about a new direction in the development of the construction pricing and the development of cost and time management system in construction (cost and time engineering in construction) integrating the assessment of investment costs, estimated pricing, estimated project scheduling, contract pricing, evaluation of the actual construction costs, and enabling to connect and manage the previous cost and time engineering processes. At the same time the concept of cost and time engineering systems in construction fixes the engineering, technical and technological basis of all processes directly or indirectly related to the definition of construction costs and to interpret the effects of cost and time engineering systems on construction projects. This represents the ‘considerations on the creation and implementation of cost and time engineering systems in construction at the national, territorial and corporate levels to achieve maximum utilization of resources, materials, machines, facilities manpower and money.
Stress Detection Using Smartphone and Wearable Devices: A Review
Get PDFStress is the mental condition of the human body thatcauses it’s dis-functioning. It affects adversely on body partsresulting in health disorders. Traditional method of stressdetection includes lab tests done by doctor. Besides traditionaltechniques, sensors are used to measure physiological signals,as these signals make it easy to detect stress. Based ontechniques of data collection, this paper is divided into twotypes, one for In-lab experiment, in which participants wearvarious sensors on their body which is invasive for real timeapplication while in second, data was collected from sensorswhich are already available in the handy devices of participantsuch as smartphone, wearable devices etc. Different types ofsensors and their uses are explained in this paper. Automaticreal time stress detection systems can be developed. This paperlists various algorithms used to gain more accuracy in detectingstress. This paper is helpful for the fellow researchers who willbe working on automatic stress detection. Various studies inthis domain have been reviewed and this is a primary effort insummarizing the highlights of the previous research done instress detection domain