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Co-Authors
- A. Asokan
- K. Divya
- S. Beski Prabaharan
- R. Sudha
- G. J. Janani
- N. Shifu Jahan
- P. Shanmuga Priya
- E. Christyno
- V. R. Rathish
- Subhadeep Das
- S. Thiyagarajan
- E. Karikalan
- K. Shaik Abdul Kader
- B. Chandralekha
- S. Janani
- R. Kayalvizhi
- P. Saraswathi
- S. Dinesh
- Akshay Sharma
- T. Hemalatha
- R. Rajeshwaran
- N. Murugan
- M. Kotteeswaran
- Abi P. Mathew
- K. Batri
- M. Thiruvengadam
- G. N. Pradeep Kumar
- C. Mohan
- G. Yamuna
- M. K. Murthi
- P. Dheena
- Tushar Sonar
- V. Balasubramanian
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- T. Venkateswaran
- M Agilan
- Gandham Phanikumar
- Deepika
- G. Narendra
Journals
- Indian Journal of Science and Technology
- Agriculture Update
- Wireless Communication
- Networking and Communication Engineering
- Automation and Autonomous Systems
- ICTACT Journal on Image and Video Processing
- International Journal of Innovative Research and Development
- The Journal of the Indian Mathematical Society
- Manufacturing Technology Today
- Indian Welding Journal
- Indian Journal of Public Health Research & Development
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Sivakumar, D.
- Fault Detection and Diagnosis for Three-tank System Using Robust Residual Generator
Abstract Views :356 |
PDF Views:107
Authors
A. Asokan
1,
D. Sivakumar
1
Affiliations
1 Dept of E&I, Annamalai University, Annamalai Nagar-608 002, Chidambaram, IN
1 Dept of E&I, Annamalai University, Annamalai Nagar-608 002, Chidambaram, IN
Source
Indian Journal of Science and Technology, Vol 2, No 7 (2009), Pagination: 23-29Abstract
Fault detection and diagnosis (FDD) is a task to deduce from observed variable of the system if any component is faulty, to locate the faults and also to estimate the fault magnitude present in the system. The main goal when synthesizing robust residual generators, for diagnosis and supervision, is to attenuate influence from model uncertainty on the residuals while keeping fault detection performance. In this paper, a design procedure for robust residual generators is developed with two key elements. One is the use of a reference model that represents desired performance. The other is an optimization criterion, based on robust H∞ filtering, used to synthesize the residual generator.Keywords
Fault Detection, Robust Residual Generation, Structured Residual Approach, H∞ FilteringFull Text
References
- Frank PM and Ding X (1997) Survey of robust residual generation and evaluation methods in observer-based fault detection systems. J. Process Control. 7(6), 403-424.
- Gao ZW and Wang H (2006) Descriptor observer approaches for multivariable systems with measurement noises and application in fault detection and diagnosis. Systems & Control Lett. 55 (4), 305-313.
- Gao ZW, Breikin T and Wang H (2007) High-gain estimator and fault-tolerant design with application to a gas turbine dynamic system, IEEE Trans. on Control Sys. Technol. 15 (40,.740-753.
- Gao ZW, Ding SX and Ma Y (2007) Robust fault estimation approach and its application in vehicle lateral dynamical systems, Optimal Control Appl. & Methods. 28 (3) 143-156.
- Gertler J (1998) Fault Detection of Dynamical Systems, Marcel Dekker, Inc. USA.
- Gertler J (1988) A Survey of Model Based Failure Detection and Isolation in Complex Plants. IEEE Control Systems Magazine. 8 (6) 3-11.
- Gertler J (1993) Residual generation in model based fault diagnosis. Control- Theory & Adv. Technol. 9, 259-285.
- Gertler J and Staroswiecki M (2002) Structured fault diagnosisin mildly nonlinear systems: Parity space and input-output formulation. FAC 15th World Cong., Barcelona, Spain.
- Gertler J, Staroswiecki M and Shen M (2002) Direct design of structured residuals for fault diagnosis in linear systems. American Control Conf. Anchorage, Alaska.
- Wu J, Biswas G, Abdelwahed S and Manders E (2005) A hybrid control system design and implementation for a three tank test bed In Proc. of the 2005 IEEE Conf. on Control Appl. pp: 645–650.
- KÄoppen-Seliger B, Alcorta-Garca E and Frank PM (1999) Fault detection: different strategies for modelling applied to the three tank benchmark - a case study. Eur. Control Conf. Karlsruhe, Germany.
- Adoption of Good Agricultural Practices (GAP) in Chillies Cultivation by Farmers in Southern Districts of Tamil Nadu
Abstract Views :355 |
PDF Views:0
Authors
K. Divya
1,
D. Sivakumar
2
Affiliations
1 Department of Agricultural and Rural Management, Tamil Nadu Agricultural University, Coimbatore, T. N., IN
2 Department of Agricultural and Rural Management, Tamil Nadu Agricultural University, Coimbatore T. N., IN
1 Department of Agricultural and Rural Management, Tamil Nadu Agricultural University, Coimbatore, T. N., IN
2 Department of Agricultural and Rural Management, Tamil Nadu Agricultural University, Coimbatore T. N., IN
Source
Agriculture Update, Vol 9, No 2 (2014), Pagination: 178-180Abstract
A study was conducted on adoption of good agricultural practices (GAP) among chillies farmers in three districts of southern Tamil Nadu. By following simple random sampling, a sample size of 160 respondents was selected from eight villages. The findings revealed that 43.75 per cent of the contract farmers had high level of adoption followed by medium adoption level (38.75 %). In the case of non-contract farmer 37.50 per cent had high adoption while 30.00 per cent had medium adoption level.Keywords
Adoption, Contract, Non-contract Farmers, Good Agricultural Practices
- Improving Performance of the Wireless Sensor Networks Based on the Life-Time of Nodes
Abstract Views :136 |
PDF Views:2
Authors
Affiliations
1 Information Technology Department, J J College of Engineering and Technology, Trichirappalli-9, Tamilnadu, IN
2 Information Technology Department, Athiparasakthi College of Engineering and Technology, Melmaruvathur, IN
1 Information Technology Department, J J College of Engineering and Technology, Trichirappalli-9, Tamilnadu, IN
2 Information Technology Department, Athiparasakthi College of Engineering and Technology, Melmaruvathur, IN
Source
Wireless Communication, Vol 2, No 11 (2010), Pagination: 453-458Abstract
This paper presents methods to improve lifetime of the wireless sensor networks (WSN). Wireless sensor networks consisting of several thousands of sensor nodes and few sink nodes. There are three different methods proposed and one method used to increase the lifetime of the WSN. The methods are – rescheduling the network, mutli-hop transmission and deleting the weak node from the network. A multi-channel system is used to create a cellular structure by assigning one frequency channel per cluster. We have used simulator to evaluate sensors energy level in various rounds. The results are studied and analyzed.
Keywords
Wireless Sensor Networks, Multiple Sinks, Reschedule, Clustering Algorithm, Network Performance.- ERAF-Extensive Reputed ARAN using Fuzzy Logic
Abstract Views :149 |
PDF Views:1
Authors
R. Sudha
1,
D. Sivakumar
2
Affiliations
1 Department of Computer Science and Engineering, Dr. Paul's Engineering College, Villupuram, Tamil Nadu, IN
2 Department of Electronics and Communication Engineering, Arunai College of Engineering, Tiruvannamalai, Tamil Nadu, IN
1 Department of Computer Science and Engineering, Dr. Paul's Engineering College, Villupuram, Tamil Nadu, IN
2 Department of Electronics and Communication Engineering, Arunai College of Engineering, Tiruvannamalai, Tamil Nadu, IN
Source
Networking and Communication Engineering, Vol 4, No 7 (2012), Pagination: 402-408Abstract
Mobile ad hoc networks, an instantaneous, easily deployable, infrastructure less network paves way for many applications in this ever widening communication world. The important aspect lies in securing Mobile Ad hoc Network (MANET) due to its decentralized architecture, dynamic topology and the mobility of the nodes. Many secure routing protocols has been evolving continuously in all these years but, still a perfect security protocol has not been achieved. Authenticated Routing for Ad hoc Networks (ARAN), an efficient secure routing protocol satisfies major security parameters such as message integrity, authentication, confidentiality and non- repudiation, but failed to differentiate the legitimate nodes from malicious nodes and selfish nodes. Reputed ARAN (RARAN) was latter proposed to perceive the selfish nodes and the protocol was efficient. This work ERAF focuses on detecting the selfish node with greater accuracy. In RARAN, the probability of detection of selfish nodes was less accurate. The protocol, which I have proposed - ERAF – Extensive Reputed ARAN using fuzzy logic, aims in achieving greater accuracy for detecting selfish nodes by integrating the fuzzy logic with the existing secure RARAN. The work aims at measuring the battery power gradually from minimum threshold to maximum threshold, a critical region of packet drop by selfish nodes. It also increases the efficiency of MANET. The overhead experienced in RARAN also is reduced by this protocol. Moreover decreasing signal strength contributes to dropping of packets which cannot be differentiated from selfish nodes. Using fuzzy logic the signal strength can be accurately predicted and when it falls below the threshold level, alternate route is chosen. Based on the two major parameters considered in this work, battery power and signal strength selfish nodes are detected accurately using the fuzzy logic at the earliest and isolated from the network.
Keywords
ARAN, ERAF, Fuzzy Logic, Selfish Nodes.- Effect of Lemna Minor L. on Textile Effluent Treatment
Abstract Views :195 |
PDF Views:1
Authors
Affiliations
1 Department of Civil Engineering, is with Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
2 Department of Civil Engineering, are with the Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
3 Department of Civil Engineering, are with the Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
1 Department of Civil Engineering, is with Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
2 Department of Civil Engineering, are with the Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
3 Department of Civil Engineering, are with the Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
Source
Automation and Autonomous Systems, Vol 4, No 9 (2012), Pagination: 421-425Abstract
Textile industry processes are among the most environmentally unfriendly industrial processes, because they produce colour effluent that is heavily polluted the environment. Therefore, effluent from textile industry has to be treated before being discharged into the environment. In this study, experiments were performed using different process parameters like nutrient dosage, dilution ratio, pH and contact time to remove EC, sulphates, phenols and COD from the textile industrial effluent in constructed wetlands with the help of aquatic macrophytes Lemna minor L. From the experiments it was found that the maximum percentage reduction of various parameters in a textile industry wastewater by Lemna minor L. were obtained at an optimum nutrient dosage of 50 g, dilution ratio of 8, pH of 8 and contact time of 4 days. Similarly, the validation experiments results showed that the maximum removal percentage of various parameters like EC, sulphate, phenols and COD in a textile industry effluent is about 80.32, 83.87, 68.22 and 77.32 % respectively. Finally this study was concluded that Lemna minor L. might be used as adsorbents for removing various parameters in a textile industry effluent.Keywords
Aquatic Macrophytes, Process Parameters, Textile Industry Wastewater, Wastewater Parameters.- Isotherm Studies on Dairy Industry Wastewater Using Neem Leaves Powder
Abstract Views :212 |
PDF Views:1
Authors
Affiliations
1 Department of Civil Engineering, is with Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
2 Department of Civil Engineering, are with the Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
1 Department of Civil Engineering, is with Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
2 Department of Civil Engineering, are with the Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
Source
Automation and Autonomous Systems, Vol 4, No 9 (2012), Pagination: 426-429Abstract
The effectiveness of neem leaves powder, a cheap agro-based product, as a coagulant was evaluated to remove COD and TDS present in a dairy industry wastewater. Experiments were carried out by adding neem leaves powder to the dairy industry wastewater at different dosages, different rapid mixing contact time and slow mixing contact time. Maximum removal of COD and TDS in a dairy industry effluent was obtained at an optimum dosage of 50 mg/l, an optimum rapid mixing contact time of 8 min. and an optimum slow mixing contact time of 20 min. The experimental data were analyzed using the Langmuir and Freundlich isotherm models. Based on regression coefficient, the equilibrium data found fitted well with the Langmuir isotherm model than that of Freundlich isotherm model. The results indicated that the use of neem leaves powder to remove COD and TDS present in a dairy industry wastewater seems to be an economical and worthwhile alternative over conventional methods.Keywords
Dairy Industry Wastewater, Freundlich Isotherm, Longmuir Isotherm, Process Parameters.- Properties Change in Cohesive Soil Using Lime and Fly Ash
Abstract Views :201 |
PDF Views:1
Authors
Affiliations
1 Department of Civil Engineering, is with Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
2 Department of Civil Engineering, are with the Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
1 Department of Civil Engineering, is with Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
2 Department of Civil Engineering, are with the Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
Source
Automation and Autonomous Systems, Vol 4, No 9 (2012), Pagination: 430-433Abstract
Soil Stabilization may be broadly defined as alteration or preservation of one or more soil properties to improve the engineering characteristics and performance of a soil. Particularly, with proper treatment, expansive soil carries the load of a structure on the soil strata. So, durability and soundness of the structure mainly depend on the soil types and characteristics. Previous research works showed that there was a potential of using silica waste and other materials for stabilizing the expansive soil to carry the various structures. Further, numbers of researches have studied the physical and chemical properties of fly ash and rice husk ash which was also used as a stabilizing agent for expansive soil. For stabilizing the soil, FA alone cannot be used as a stabilizing agent due to the lack of cementations properties such as lime. This paper presented the result of the effect of change in the index properties of soil using fly ash with lime, not only for strength development but also the durability of lime stabilizing soil.Keywords
Expansive Soil, Fly Ash, Lime, Strength Properties.- Effect of Albizia Lebbeck on Electroplating Industry Effluent Treatment
Abstract Views :199 |
PDF Views:1
Authors
Affiliations
1 Department of Civil Engineering, is with Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
2 Department of Civil Engineering, are with the Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
1 Department of Civil Engineering, is with Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
2 Department of Civil Engineering, are with the Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
Source
Automation and Autonomous Systems, Vol 4, No 9 (2012), Pagination: 434-438Abstract
The total dissolved solids and sulphate in the electroplating industry effluent was adsorbed using Albizia lebbeck pod powder, which was studied by batch method. The effect of initial concentration of Albizia lebbeck pod powder for removing total dissolved solids and sulphate in the electroplating industry effluent has been evaluated. The results of the present study indicated that the maximum adsorption capacity of Albizia lebbeck pod powder for removing total dissolved solids and sulphate in the electroplating industry effluent was observed at an optimum dosage of 1000 mg/l of Albizia lebbeck pod powder. The kinetic data were fitted to the pseudo first-order, pseudo second-order, Elovich and intraparticle diffusion models. Based on regression coefficient, the equilibrium data found fitted well with pseudo second-order kinetic model than that of other models.Keywords
Albizia Lebbeck Pod Powder, Electroplating Industry Effluent, Kinetic Models, Process Parameters.- Pollution Reduction by Tamarind Kernel Powder on Dairy Industry Wastewater
Abstract Views :221 |
PDF Views:1
Authors
Affiliations
1 Department of Civil Engineering, is with Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
2 Department of Civil Engineering, are with the Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
1 Department of Civil Engineering, is with Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
2 Department of Civil Engineering, are with the Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
Source
Automation and Autonomous Systems, Vol 4, No 9 (2012), Pagination: 439-441Abstract
The effectiveness of tamarind kernel powder, a cheap agro-based product, as a coagulant was evaluated to remove COD and TDS present in a dairy industry wastewater. Experiments were carried out by adding tamarind kernel powder to the dairy industry wastewater at different dosages, different rapid mixing contact time and slow mixing contact time. Maximum removal of 87.8 % and 91.5 % respectively for COD and TDS was obtained at an optimum dosage of 70 mg/l, 82.8 % and 87.7 % respectively for COD and TDS was obtained at an optimum rapid mixing contact time of 10 min. and 84.6 % and 89.4 % respectively for COD and TDS was obtained at an optimum slow mixing contact time of 30 min. Similarly, the maximum removal percentage obtained at an optimum tamarind kernel powder dosage, rapid mixing contact time and slow mixing contact time for COD and TDS in a dairy industry effluent by tamarind kernel powder is about 89.7 % and 92.3 % respectively. The results indicated that the use of tamarind kernel powder to remove COD and TDS present in a dairy industry wastewater seems to be an economical and worthwhile alternative over conventional methods.Keywords
Dairy Industry Wastewater, Process Parameters, Tamarind Kernel Seed Powder, Wastewater Properties.- Removal of Heavy Metal from Electroplating Industrial Wastewater by Electro-Dialysis
Abstract Views :199 |
PDF Views:1
Authors
Affiliations
1 Department of Civil Engineering, is with Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
2 Department of Civil Engineering, are with the Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
1 Department of Civil Engineering, is with Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
2 Department of Civil Engineering, are with the Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
Source
Automation and Autonomous Systems, Vol 4, No 9 (2012), Pagination: 442-445Abstract
This study was focused on removal copper (Cu) and nickel (Ni) from electroplating industry wastewater using the method called electro-dialysis method. The experimental investigations have been carried out by using electro-dialysis method for different temperature and different agitation speed with two electrodes namely carbon and iron. The results showed that the maximum percentage removal of Cu and Ni in the electroplating industrial wastewater was obtained at the temperature of 50oC and agitation speed of 100 rpm respectively by electro-dialysis method. Thus, this study concluded that electro-dialysis method was effectively used for removing Cu and Ni from electroplating industry.Keywords
Digital Uv Spectrophotometer, Electro-Dialysis, Electroplating Industry Wastewater, Magnetic Stirrer.- Effect of Fly Ash-Lime and Rice Husk Ash in Manufacturing of Brick
Abstract Views :204 |
PDF Views:2
Authors
Affiliations
1 Department of Civil Engineering, is with Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
2 Department of Civil Engineering, is with the Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
3 Department of Civil Engineering, is with KIIT, Gurgaon, IN
1 Department of Civil Engineering, is with Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
2 Department of Civil Engineering, is with the Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, IN
3 Department of Civil Engineering, is with KIIT, Gurgaon, IN
Source
Automation and Autonomous Systems, Vol 4, No 9 (2012), Pagination: 446-449Abstract
Need for building materials is growing at an alarming rate and in order to meet the demand for new buildings, new ways and techniques must be evolved. The use of alternative materials for bricks should be encouraged in order to preserve precious fertile top soil. In such case thermal power stations use pulverized coal as fuel generates large quantities of fly ash as by-product. India generally called as agricultural country and gives many by products such as rice husk, straws etc. These agricultural wastes can be used in stabilization of soils, as one of its cases can used to improve the properties of bricks. Optimum combinations of fly ash-lime and rice husk ash with clay for manufacturing of bricks have been found from laboratory testing.Keywords
Aquatic Macrophytes, Process Parameters, Textile Industry Wastewater, Wastewater Parameters.- Size Effect Studies on Concrete Made of Natural and Artificial Sand
Abstract Views :151 |
PDF Views:0
Authors
Affiliations
1 Department of Civil Engineering, Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai - 600062, Tamil Nadu, IN
2 Structural Engineering Research Centre (CSIR - SERC), Chennai - 600113, Tamil Nadu, IN
1 Department of Civil Engineering, Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai - 600062, Tamil Nadu, IN
2 Structural Engineering Research Centre (CSIR - SERC), Chennai - 600113, Tamil Nadu, IN
Source
Indian Journal of Science and Technology, Vol 9, No 2 (2016), Pagination:Abstract
Objective: An experimental investigation was carried out to study the size effect on concrete specimens. Methods: In order to study the size effect compressive and split tensile test were conducted on standard and high strength concrete (M30 and M60) specimens of two different sizes of cubes (150 x 150 x 150 mm and 100 x 100 x 100 mm) and cylinders (150 x 300 mm and 100 x 200 mm) made of natural and artificial sand. In addition to this, the flexural strength test was also conducted for beam (500 x 100 x 100 mm) to compare the flexural strength of the beams made of natural and artificial sand. Findings: The result showed that the larger size concrete specimen fails at a lower stress than a smaller one and it was also observed that there was no significant variation in the strength with two sizes considered. The mechanical properties obtained with natural sand and artificial sand indicates that strength obtained for artificial sand was higher than that of natural sand for both M30 and M60 grade of concrete. Applications/Improvements: From this study, it was concluded that the standard cube of 150 x 150 x 150 mm and 100 x 100 x 100 mm can be used interchangeably for the test purpose. Similarly, for split tensile strength, standard cylinder of 150 x 300 mm and 100 x 200 mm can be used interchangeably.Keywords
Artificial Sand, Mechanical Properties, Size Effect, Strength CharacteristicsFull Text
- Comparative Analysis of Flame Image Features for Combustion Analysis
Abstract Views :152 |
PDF Views:0
Authors
Affiliations
1 St. Joseph’s College of Engineering and Technology, Palai, Bharananganam Pravithanam Road, Choondacherry-686579, Kerala, IN
2 Department of Instrumentation, Annamalai University, Rukmani Lakshmipathy Road, Egmore, Chennai-600008, Tamil Nadu, IN
3 PSNA College of Engineering and Technology, Kothandaraman Nagar, National Highway 209, Dindigul – 624622, Tamil Nadu, IN
4 Department of Instrumentation, Annamalai University, Rukmani Lakshmipathy Road, Egmore, Chennai – 600008, Tamil Nadu, IN
1 St. Joseph’s College of Engineering and Technology, Palai, Bharananganam Pravithanam Road, Choondacherry-686579, Kerala, IN
2 Department of Instrumentation, Annamalai University, Rukmani Lakshmipathy Road, Egmore, Chennai-600008, Tamil Nadu, IN
3 PSNA College of Engineering and Technology, Kothandaraman Nagar, National Highway 209, Dindigul – 624622, Tamil Nadu, IN
4 Department of Instrumentation, Annamalai University, Rukmani Lakshmipathy Road, Egmore, Chennai – 600008, Tamil Nadu, IN
Source
Indian Journal of Science and Technology, Vol 9, No 6 (2016), Pagination:Abstract
Background/ Objective: This article identifies the best feature of the flame video, captured with a camera with frequency response in visible spectrum, from which the flame temperature can be estimated. Methods/Statistical analysis: The flame videos at different air and fuel inlets with different boiler temperatures were recorded from a diesel fired boiler prototype. In the video frames, the flame region was localised by intensity based adaptive thresholding. The correlation between boiler temperature and measures of central tendency and dispersion of different colour channels of the video frames were investigated. Findings: Among the features of the flame video, Standard deviation of blue channel grey levels above 32.95, variance greater than 1293 and mean absolute deviation (MAD) above 30.38 could efficiently represent the region of optimum combustion air supply at which boiler temperature is maximum above 684 degree Celsius. Range of green channel grey levels, interquartile mean, variance and mean absolute deviation of blue channel grey levels are the video features exhibiting maximum correlation (ρ>-0.96) with boiler temperature. Applications/Improvements: The features of the flame video which are correlated with its temperature can be utilised to develop non-intrusive methods of temperature measurement. This will enable efficient control of combustion process.Keywords
Combustion, Flame Image Processing, Flame Temperature Measurement, Image Features, Video ProcessingFull Text
- Non-Dimensional Equation of Resistance Coefficient with Reynolds Number of Porous Medium Flow
Abstract Views :151 |
PDF Views:0
Authors
Affiliations
1 Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai - 600062, Tamil Nadu, IN
2 S.V.U. College of Engineering, Tirupati - 517502, Andra Pradesh, IN
1 Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai - 600062, Tamil Nadu, IN
2 S.V.U. College of Engineering, Tirupati - 517502, Andra Pradesh, IN
Source
Indian Journal of Science and Technology, Vol 9, No 11 (2016), Pagination:Abstract
Objectives: To review the Darcy’s equation and ascertain the reliability of the present experimental investigations with that of the past study. To present a non-dimensional form of relation between resistant to flow with fluid and particle parameters. To analyze the relation between Reynolds numbers with resistant coefficient (lambda) in ground water flow. Methodology: In order to achieve these objectives, experimental program planned, designed and carried out. Experiments conducted on porous medium of large spread of sizes of different materials in parallel flow permeameter for all regimes of flow. Findings: Experimental results compared with Darcy’s equation and the validity of this equation is verified. A new form of Reynolds number is derived taking hydraulic mean radius as characteristic length and seepage velocity as characteristic velocity absorbing void ratio, volume diameter, and kinematic viscosity. Another non-dimensional form of resistant co-efficient is also derived and used to get unique relation between Reynolds numbers with resistance coefficient. Applications: Observed experimental data applied in Darcy’s equations, and verified in its applicability. The derived equations can be applied in porous medium flow, such that velocity of flow can be determined, from which discharge through porous medium can be estimated.Keywords
Darcy, Friction Factor, Hydraulic Gradient, Porous Medium Flow, Reynolds Number, VelocityFull Text
- An Experimental Study of Porous Medium Flow in Converging Boundary
Abstract Views :168 |
PDF Views:0
Authors
Affiliations
1 Department of Civil Engineering, Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai - 600062, Tamil Nadu, IN
2 Department of Civil Engineering, S.V.U. College of Engineering, Tirupati - 517502, Andra Pradesh, IN
3 Department of Mathematics, Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai - 600062, Tamil Nadu, IN
1 Department of Civil Engineering, Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai - 600062, Tamil Nadu, IN
2 Department of Civil Engineering, S.V.U. College of Engineering, Tirupati - 517502, Andra Pradesh, IN
3 Department of Mathematics, Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai - 600062, Tamil Nadu, IN
Source
Indian Journal of Science and Technology, Vol 9, No 19 (2016), Pagination:Abstract
Objectives: Since 1856, Darcy's equation is used to analyse the ground water flow. This equation can be applied only in laminar regime of flow. No suitable equation is available to analyse other regimes of flow. During the pumping the water from well, the water around well flows in converging pattern towards well. The analysis of flow of water around wells is a problem in converging boundary through porous soils or sands. Generally, Dupuit's equation is used to analyse the flow around the well. One of the drawback in Dupuit's equation is it can be used only in laminar flow, since, this equation used Darcy's concept. No equation is available to analyse other than laminar flow in converging pattern towards well. Therefore, this situation motivated to think to design a sector of well model to conduct experiments on porous medium flow in converging boundary for all regimes of flow to estimate the discharge of a well. Methodology: In order to achieve the objective, a converging permeameter (a sector of a well model) is planned, designed and experimented. In this study, experiments have been conducted on porous medium in converging flow permeameter for all regimes of flow. From the experimentation of converging boundary, data like discharge, hydraulic gradient and velocity are calculated. Further, a new non-dimensional form of equation is also derived relating hydraulic gradient with Reynolds number. Findings: A set of graphs are drawn between hydraulic gradient and velocity, using Darcy's range of velocities and corresponding hydraulic gradient. These graphs are compared with Darcy's graph and the validity of Darcy's equation is verified. The trends of the present graph is coinciding with that of Darcy's graph such that the validation of this experimentation is checked. Another set of graphs are also drawn with hydraulic gradient versus velocity for all regimes of flow. A polynomial second degree equation (i=a1 Vb 2 +k'Vb) has been proposed relating hydraulic gradient with bulk velocity in laminar and turbulent regimes. Hence this project result proves that, using this equation and corresponding constants discharge of a well can be estimated even if the flow is laminar and turbulent. Applications: The relation between hydraulic gradient and Reynolds number is obtained as i=0.0004 Re0.5. Substituting hydraulic gradient in this equation from field observations, Reynolds number can be find out. From the Reynolds number seepage velocity can be find out and corresponding discharge may be calculated in a well for any regime of flow which superfluous Dupuit's equation.Keywords
Darcy’s Equation, Hydraulic Gradient, Porous Medium, Reynolds Number, Velocity of Flow.Full Text
- A Novel Digital Image Watermarking Scheme Using Biorthogonal Wavelets
Abstract Views :285 |
PDF Views:0
Authors
G. Yamuna
1,
D. Sivakumar
2
Affiliations
1 Department of Electrical and Electronics Engineering, Annamalai University, Tamil Nadu, IN
2 Department of Electronics and Instrumentation Engineering, Annamalai University, Tamil Nadu, IN
1 Department of Electrical and Electronics Engineering, Annamalai University, Tamil Nadu, IN
2 Department of Electronics and Instrumentation Engineering, Annamalai University, Tamil Nadu, IN
Source
ICTACT Journal on Image and Video Processing, Vol 1, No 4 (2011), Pagination: 236-240Abstract
Copyright protection is considered as an issue of vital significance owing to the escalating utilization of internet and effortless copying, tampering and distribution of digital images. Digital watermarking methodologies are looked upon as a competent tool for safeguarding the digital images from copyright infringements issues. A number of researches in existence deal with copyright protection with the aid of watermarking. Recently, wavelet domain based watermarking ap-proaches are gaining popularity in watermarking researches. In this paper we have proposed a novel watermarking scheme for copyright protection in digital images. The watermarking is performed in wave-let domain using bi-orthogonal wavelet transform. As the proposed approach is non-blind, it requires original image for extracting the watermark. The watermark image is a binary image. The watermark image is embedded in the HH sub-band of the wavelet transformed original image. A Good quality of watermarked image is assured through the proposed scheme from the higher PSNR values which is evident from experimental result.Keywords
Digital Watermarking, Copyright Protection, Non-Blind, Discrete Wavelet Transform, Bi-Orthogonal.- Investigation of Performance Analysis and Emission Characteristics of Biodiesel
Abstract Views :140 |
PDF Views:7
Authors
Source
International Journal of Innovative Research and Development, Vol 3, No 11 (2014), Pagination:Abstract
The emission characteristics of carbon dioxide, carbon monoxide, nitric oxide hydrocarbons and improve engine performance was found to be higher than pure diesel. Biodiesel is to choose a diesel that is safer, produces less harmful combustion emissions are easily. B20 is the most common biodiesel blend in the world. B20 is popular because it represents a balance of cost, emissions, materials compatibility, reduced engine wear through the increased lubricity and ability to act as a solvent. However, biodiesel has a higher Cloud Point (CP), Pour Point (PP), and Cold Filter Plugging Point (CFPP) than diesel oil. The increase in these cold flow properties is related to the gelling of biodiesel at higher temperatures than diesel fuel oil. The use of biodiesel blends, thus, pose potential operational problems in cold external environment. Biodiesel degrades due to oxidation, contact with water, and activity. The oxidation of biodiesel can produce various acids or polymers which, if in high enough concentration, can cause fuel system corrosion and deposits which in turn can lead to filter clogging and fuel system malfunctions. In addition, advanced direct injection engines may lose significant power when poor quality biodiesel blends are used. An effective performance diesel fuel additive can help guard against such problems. This work includes analysis with B20 blends of the some oils and use of additives in biodiesel.
Keywords
Mono Alkyl Ester, Transesterification, Biodiesel, Emission characteristics and Engine performance.Full Text
- Nc-Pure Regular Near-rings
Abstract Views :149 |
PDF Views:0
Authors
P. Dheena
1,
D. Sivakumar
2
Affiliations
1 Department of Mathematics, Annamalai University, Annamalainagar-608 002, IN
2 Department of Mathematics (DDE), Annamalai University, Annamalainagar-608 002, IN
1 Department of Mathematics, Annamalai University, Annamalainagar-608 002, IN
2 Department of Mathematics (DDE), Annamalai University, Annamalainagar-608 002, IN
Source
The Journal of the Indian Mathematical Society, Vol 72, No 1-4 (2005), Pagination: 157-161Abstract
In this paper we introduce the notion of Nc-pwe and strict Nc-pure near-rings. We have shown that a reduced near-ring N with identity is Nc-pure if and only if whenever e < a for some e ∉ Nc and ∈ N implies e = ea = and a - e is an idempotent element. We have also obtained an equivalent condition for a Nc pure near-ring to be strict Ncpure.- Effect of Delta Current on the Microstructure and Tensile Properties of Gas Tungsten Constricted Arc Welded Inconel 718 Alloy Joints
Abstract Views :227 |
PDF Views:0
Authors
Affiliations
1 Centre for Material Joining and Research (CEMAJOR), Dept. of Mfg. Engg., Annamalai University, Annamalai Nagar, Tamilnadu, IN
2 Vikram Sarabhai Space Centre (VSSC), ISRO, Thiruvananthapuram, IN
1 Centre for Material Joining and Research (CEMAJOR), Dept. of Mfg. Engg., Annamalai University, Annamalai Nagar, Tamilnadu, IN
2 Vikram Sarabhai Space Centre (VSSC), ISRO, Thiruvananthapuram, IN
Source
Manufacturing Technology Today, Vol 18, No 5 (2019), Pagination: 48-60Abstract
Inconel 718 is a nickel-based superalloy which is of potential interest in high temperature applications in rocket and gas turbines. This alloy is mostly joined by Gas Tungsten Arc Welding (GTAW) process for clean and precise welds and it is economical and shop friendly. However, due to the high heat input associated with this process, the joints are more prone for metallurgical problems such as coarse dendritic structure and segregation in weld metal region and liquation cracking in heat affected zone (HAZ) which significantly reduces the mechanical properties of the welded joints. To overcome these shortcomings, a recently developed Gas Tungsten Constricted Arc Welding (GTCAW) process is used for joining Inconel 718 alloy. It is the advanced variant of GTAW process with magnetic arc constriction achieved by introducing high frequency pulsing Current (known as Delta Current). Delta Current pulsing at a very high frequency is controlling factor for the rise and fall of magnetic arc constriction during welding. The main objective of this investigation is to make the potential use of Magnetic Arc Constriction to reduce the heat input for minimizing metallurgical problems and enhancing the mechanical properties of the joints. To achieve this, main effect of Delta Current on tensile properties and microstructural characteristics of Inconel 718 alloy is investigated.Keywords
Gas Tungsten Constricted Arc Welding (GTCAW), Delta Current, Tensile Properties, Microstructural Characteristics.References
- Lippold, J; DuPont, JC; DuPont, JN; Kiser, SD: Welding metallurgy and weldability of nickel base alloys, 'John Wiley and Sons, Inc.', New Jersey, 2009.
- Agilan, M; Krishna Chenna, S; Manwatkar, Sushant, K; Vinayan, EG; Sivakumar, Bhanu, D Pant: Effect of welding processes (GTAW & EBW) and solutionizing temperature on microfissuring tendency in Inconel 718 welds, 'Materials Science Forum', vol. 710, 2004, 603-607.
- Gordine, J: Some problems in welding Inconel 718, 'Welding Journal', 1970, 480-484.
- Madhusudan Reddy, G; Srinivasa Murthy, CV; Srinivasa Rao, K; Prasad Rao, K: Improvement of mechanical properties of Inconel 718 electron beam welds— influence of welding techniques and post weld heat treatment, 'International Journal of Advanced Manufacturing Technology', vol. 43, 2009, 671 - 680.
- Janki Ram, G; Reddy, A; Prasad Rao, K; Reddy G; Sarin Sundar, J: Microstructure and tensile properties of Inconel 718 pulsed Nd-Yag laser welds, 'Journal of Materials Processing Technology', vol. 167, 2005, 73 - 82.
- Sivaprasad, K; Sundra Raman, G: Influence of weld cooling rate, on microstructure and mechanical properties of Alloy 718 weldments, 'Metallurgical and Materials Transactions A', vol. 39A, 2008, 2115 - 2127.
- Sudarshan Rao, G; Saravanan, K; Harikrishnan, G; Sharma, VMJ; Ramesh Narayan, P; Sreekumar, K; Sinha, P: Local deformation behaviour of Inconel 718 TIG weldments at room temperature and 550°C, 'Materials Science Forum', vol. 710, 2012, 439 - 444.
- Sivaprasad, K; Ganesh Sundara Raman, S; Mastanaiah, P; Madhusudhan Reddy, G; Influence of magnetic arc oscillation and current pulsing on microstructure and high temperature tensile strength of alloy 718 TIG weldments, 'Materials Science and Engineering A', vol. 428, 2006, 327 - 331.
- Janaki Ram, GD; Venugopal Reddy, A; Prasad Rao, K; Madhusudhan Reddy, G: Control of Laves phase in Inconel 718 GTA welds with current pulsing, 'Science and Technology of Welding and Joining', vol. 9, no. 5, 2004, 390-398.
- Radhakrishna, CH; Prasad Rao, K: The formation and control of Laves phase in superalloy 718 welds, 'Journal of Materials Science', vol. 32, 1997, 1977 - 1984.
- Seidi, FR; Unkel, W: Arc and weld pool behavior for pulsed current GTAW, 'Welding Research Supplement', 1988, 247-255
- Mechanical Properties and Microstructural Evolution in Al-Cu-Li 2195 Alloy GTA and FSW Welds
Abstract Views :317 |
PDF Views:8
Authors
Affiliations
1 Materials & Metallurgy Group, Vikram Sarabhai Space Centre, ISRO, Trivandrum, IN
2 India Indian Institute of Technology Madras, Chennai - 600 032, IN
1 Materials & Metallurgy Group, Vikram Sarabhai Space Centre, ISRO, Trivandrum, IN
2 India Indian Institute of Technology Madras, Chennai - 600 032, IN
Source
Indian Welding Journal, Vol 52, No 4 (2019), Pagination: 53-58Abstract
Aerospace and launch vehicles structures demands materials with low density and high strength. 2195 is an advanced Al-Cu-Li alloy, considered as a potential material for launch vehicle structures due to low density and high strength. However, the fusion weldability of this alloy is not as simple as conventional 2219 alloy. Porosity and solidification cracking are main concerns in 2195 alloy with respect to weldability. In this present work, weldability issues are addressed to minimise their effect. 2195 alloy is welded by gas tungsten arc welding (GTAW) and friction stir welding (FSW) using optimised process parameters. Weld tensile properties of GTA and FSW welds were evaluated in as-weld condition. Hardness survey across the welds was performed. Microstructural analysis of GTA and FSW welds were carried out. Effect of tool rotation speed and tool travel speed on mechanical properties was studied.Keywords
2195 Alloy, Gas Tungsten Arc Welding (GTAW), Friction Stir Welding (FSW), Weldability.References
- Kostrivas A and Lippold JC (1999); Weldability of Libearing aluminium alloys, International Materials Reviews, 44 (6), pp. 217 - 236
- Eswara Prasad A, Gokhale AA, and Wanhill RJH (2014); Aluminium Lithium alloys, Processing properties and applications, Elsevier.
- Mishra RS and Mahoney MW (2007); Friction Stir Welding and Processing, ASM International, Materials Park, Ohio.
- Givi B and Kazem M (2014); Advances in friction stir welding and processing, Elsevier, Amsterdam.
- Mishra RS and Ma ZY (2005); Friction stir welding and processing, Materials Science and Engineering R 50 pp. 1-78.
- Cam G and Mistikoglu S (2014); Recent Developments in Friction Stir Welding of Al - alloys, Journal of Materials Engineering and Performance, 23(6), pp.1936-1953.
- Assessment of Performance of Services for Three to Six Years Old Children in Urban Anganwadi’s in Kozhikode Corporation in Kerala:A Cross Sectional Study
Abstract Views :540 |
PDF Views:0
Authors
D. Sivakumar
1,
Deepika
2
Affiliations
1 Department of Community Medicine, Government Thiruvannamalai Medical College, Thiruvannamalai, IN
2 Kanchipuram District Hospital, Tamilnadu, IN
1 Department of Community Medicine, Government Thiruvannamalai Medical College, Thiruvannamalai, IN
2 Kanchipuram District Hospital, Tamilnadu, IN
Source
Indian Journal of Public Health Research & Development, Vol 10, No 12 (2019), Pagination: 505-509Abstract
Introduction: Integrated Child Development Services is the largest national programme for the development of mothers and children in the world. The services are rendered through Anganwadi worker (AWW) at Anganwadi centre (AWC).An evaluation study is carried out toassess the services provided by the anganwadi centres to 3 to 6 year old children in Urban ICDS blocks in Kozhikode Corporationto study the shortcomings in implementation, improving the services and in decision making of the programme.
Method: A cross sectional descriptive study was carried out in 4 urban ICDS blocks in Kozhikode. Data was collected using pretested semi structured questionnaire and by observation of anganwadi centres and records at the time of visit and interviewing anganwadi workers and anganwadi helpers.
Results: Among 117 anganwadi centres, 73(62.4%) of AWC’s provided average services to 3 to 6 year old children, only 26(22.2%) of centres provided good services and 18 (15.4%) of AWC’s with poor performance needs to be targeted for improvement .
Conclusions: There is a need for effective coordination between the health functionaries and the anganwadi workers in immunisation, growth monitoring, health checkups and referral services, nutrition and health education.
Keywords
Supplementary Nutrition, Preschool Education, Health Checkups, Referral Services, Immunisation, Health Education.- Effect of Delta Current Frequency (DCF) on Microstructure and Tensile properties of Gas Tungsten Constricted Arc (GTCA) welded Inconel 718 Alloy Joints
Abstract Views :249 |
PDF Views:7
Authors
Affiliations
1 Centre for Materials Joining and Research (CEMAJOR), Department of Manufacturing Engineering, Annamalai University , Annamalai Nagar 608002, Tamilnadu, IN
2 Vikram Sarabhai Space Centre (VSSC), ISRO, Thiruvananthapuram 695022, Kerala, IN
1 Centre for Materials Joining and Research (CEMAJOR), Department of Manufacturing Engineering, Annamalai University , Annamalai Nagar 608002, Tamilnadu, IN
2 Vikram Sarabhai Space Centre (VSSC), ISRO, Thiruvananthapuram 695022, Kerala, IN
Source
Indian Welding Journal, Vol 53, No 2 (2020), Pagination: 65-74Abstract
Inconel 718 is a nickel-based superalloy mostly used in high temperature applications in aerospace sector due to its extensive mechanical properties and weldability . Gas T ungsten Arc Welding (GT AW) process is widely used for joining of Inconel 718 alloy for cleaner , precise and high-quality welds. However , due to the high heat input and wider arc associated with this process, it is having certain metallurgical problems in welding, such as coarse dendritic structure and segregation of alloying elements in weld metal region which significantly reduces the mechanical properties of the joints. T o overcome these limitations, a newly developed Gas T ungsten Constricted Arc Welding (GTCAW) process is employed to join Inconel 718 alloy . It is the advanced configuration of GTAW process, based on magnetic arc constriction induced by high frequency pulsing of the current known as Delta Current. The main objective of this investigation is to study the effect of Delta Current Frequency (DCF) on the weldability of Inconel 718 alloy for its viability in aerospace applications. The joints welded at 4 kHz showed superior tensile properties due to the refinement of grains in fusion zone. Increase in DCF results in decrease in tensile properties of the joints due to the coarsening of dendritic fusion zone microstructure. It is attributed to the stacking of heat input during welding.Keywords
Gas Tungsten Constricted Arc Welding, GTCAW, Delta Current Frequency, Inconel 718, T Ensile Properties, Microstructure.References
- Gordine J (1970); Welding of Inconel 718, Welding Research Supplement, pp.531-537 .
- Lund CH (1961) Physical Metallurgy of Nickel Base Superalloys, Defence Metals Information Centre (DMIC) Report 153, Battelle Memorial Institute, Ohio.
- Lippold J, DuPont JC, DuPont JN, Kiser SD (2009); Welding Metallurgy and Weldability of Nickel Base Alloys, John Wiley and Sons, Inc. , New Jersey .
- Gordine J (1970); Some Problems in Welding Inconel 718, Welding Journal, pp.480-484.
- Wagner HJ, Hall A (1965), Physical Metallurgy of Alloy 718, Defence Metals Information Centre (DMIC), Report 217 , Battle Memorial Institute Columbus Ohio.
- Radhakrishna CH, Prasad Rao K (1997); The formation and control of Laves phase in superalloy 718 welds, Journal of Materials Science 32, pp.1977-1984.
- Janaki Ram GD, Reddy AV , Rao KP , Reddy GM (2005); Microstructure and mechanical properties of Inconel 718 electron beam welds, Materials Science and T echnology 21, pp.1132-1138.
- Madhusudan Reddy G, Srinivasa Murthy C V , Srinivasa Rao K, Prasad Rao K (2009); Improvement of mechanical properties of Inconel 718 electron beam welds- influence of welding techniques and post weld heat treatment, International Journal of Advanced Manufacturing T echnology 43, pp.671-680.
- Agilan M, Krishna CS, Manwatkar SK, Vinayan EG, Sivakumar D, Pant B (2004); Effect of Welding Processes (GT AW & EBW) and Solutionizing T emperature on Microfissuring T endency in Inconel 718 Welds, Materials Science Forum710, pp.603-607 .
- Huang CA, Wang TH, Lee CH, Han WC (2005); A study of the heat-affected zone (HAZ) of an Inconel 718 sheet welded with electron-beam welding (EBW), Materials Science and Engineering: A 398, pp.275-281.
- Leary RK, Merson E, Birmingham K, Harvey D, Brydson R (2010); Microstructural and microtextural analysis of InterPulse GTCAW welds in Cp-Ti and Ti-6Al-4V ,Materials Science and Engineering: A 527 , pp.7694-7705.
- Sudarshan Rao G, Saravanan K, Harikrishnan G, Sharma VMJ, Ramesh Narayan P , Sreekumar K, Sinha P (2012); Local Deformation Behaviour of Inconel 718 TIG weld-o ments at Room T emperature and 550 C, Materials Science Forum, 710, pp.439-444.
- Cortes R, Barragan ER, Lopez VH, Ambriz RR, Jaramillo D (2018); Mechanical properties of Inconel 718 welds performed by Gas T ungsten Arc welding, International Journal of Advanced Manufacturing T echnology , 94 (9-12), pp.3949-3961.
- Rodríguez NK, Barragán ER, Lijanova IV , Cortés R, Ambriz RR, Méndez C, Jaramillo D (2017); Heat Input Effect on the Mechanical Properties of Inconel 718 Gas T ungsten Arc Welds, Proceedings of the 17th International Conferenceon New T rends in Fatigue and Fracture, pp.255-262.
- Agilan M, Krishna CS, Manwatkar SK, Vinayan EG, Sivakumar D, Pant B (2004);Effect of Welding Processes (GT AW & EBW) and Solutionizing T emperature on Microfissuring T endency in Inconel 718 Welds, Materials Science Forum 710, pp.603-607 .
- Reddy GM, Murthy CVS,Viswanathan N, Prasad Rao K (2007); Effects of electron beam oscillation techniques on solidification behaviour and stress rupture properties of Inconel 718 welds, Science and T echnology of Welding and Joining, 12, pp.106-114.
- Mei Y , Liu Y , Liu C, Li C, Guo Q, Li H (2016); Effect of base metal and welding speed on fusion zone microstructure and HAZ hot cracking of electron beam welded Inconel 718, Materials and Design, 89, pp.964-977 .
- Ram GDJ, Reddy A, Prasad Rao K, Madhusudhan Reddy G, Sarin Sundar J (2005); Microstructure and T ensile properties of Inconel 718 pulsed Nd-Yag Laser Welds, Journal of Materials Processing T echnology , 167 , pp.73-82.
- Odabasi A, Unlu N, Goller G, Eruslu MN (2010); A Study on Laser Beam Welding (LBW) T echnique: Effect of Heat Input on the Microstructural Evolution of Superalloy Inconel 718, Metallurgical and Materials T ransactions A, 41, pp.2357-2365.
- Cao X, Rivaux B, Jahazi M, Cuddy J, Birur A (2009); Effect of pre- and post-weld heat treatment on metallurgical and tensile properties of Inconel 718 alloy butt joints welded using 4 kW Nd-Yag laser welding, Journal of Material Science, 44, pp.4557-4571.
- Sivaprasad K, Ganesh Sundara Raman S, Mastanaiah P , Madhusudhan Reddy G (2006); Influence of magnetic arc oscillation and current pulsing on microstructure and high temperature tensile strength of alloy 718 TIG weldments, Materials Science and Engineering A, 428, pp.327-331.
- Ram GDJ, Venugopal Reddy , A, Prasad Rao K, Reddy GM (2004); Control of Laves phase in Inconel 718 GTA welds INDIAN WELDING JOURNAL Vol ume 53 No. 2, A pri l , 2020 with current pulsing, Science and T echnology of Welding and Joining, 9, pp.390-398.
- Sonar T , Balasubramanian V , Malarvizhi S, Venkateswaran T , Sivakumar D (2019); Effect of Delta Current on the microstructure and tensile properties of Gas T ungsten Constricted Arc welded Inconel 718 alloy joints, Manufacturing T echnology T oday 8, pp.48-60.
- Manikandan SGK, Sivakumar D, Kamaraj M, Prasad Rao K (2012); Laves phase control in Inconel 718 weldments, Material Science Forum, 710, pp.614-619.
- Radhakrishna CH, Prasad Rao K (1997); The formation and control of Laves phase in superalloy 718 welds, Journal of Materials Science, 32, pp.1977-1984.
- Sivaprasad K, Sundara Raman G (2008); Influence of weld cooling rate, on microstructure and mechanical properties of Alloy 718 weldments, Metallurgical and Materials T ransactions A, 39, pp.2115-2127 .
- Manikandan SGK, Sivakumar D, Prasad Rao K, Kamaraj M (2014); Effect of weld cooling rate on Laves phase formation in Inconel 718 fusion zone, Journal of Materials Processing T echnology 214.
- Dimensionality Reduction based Classification Using Generative Adversarial Networks Dataset Generation
Abstract Views :71 |
PDF Views:1
Authors
G. Narendra
1,
D. Sivakumar
1
Affiliations
1 Department of Electronics and Instrumentation Engineering, Annamalai University, IN
1 Department of Electronics and Instrumentation Engineering, Annamalai University, IN
Source
ICTACT Journal on Image and Video Processing, Vol 13, No 1 (2022), Pagination: 2786-2790Abstract
The term data augmentation refers to an approach that can be used to prevent overfitting in the training dataset, which is where the issue first manifests itself. This is based on the assumption that extra datasets can be improved by include new information that is of use. It is feasible to create an artificially larger training dataset by utilizing methods such as data warping and oversampling. This will allow for the creation of more accurate models. This idea is demonstrated through the application of a variety of different methods, some of which include neural style transfer, adversarial training, and erasure by random erasure, amongst others. By utilizing oversampling augmentations, it is feasible to create synthetic instances that can be incorporated into the training data. This is made possible by the generation of synthetic instances. There are numerous illustrations of this, including image merging, feature space enhancements, and generative adversarial networks, to name a few (GANs). In this paper, we aim to provide evidence that a Generative Adversarial Network can be used to convert regular images into Hyper Spectral Images (HSI). The purpose of the model is to generate data by including a certain amount of unpredictable noise.Keywords
Data Augmentation, GAN, Hyper Spectral Images, Classification.References
- Ian Goodfellow and Yoshua Bengio, “Generative Adversarial Networks”, Communications of the ACM, Vol. 63, No. 11, pp. 139-144, 2020.
- Z. Xu, Jiawei Luo and Zehao Xiong, “scSemiGAN: A Single-Cell Semi-Supervised Annotation and Dimensionality Reduction Framework based on Generative Adversarial Network”, Bioinformatics, Vol. 83, No. 2, pp. 1-14, 2022.
- Farajzadeh Zanjani, Maryam, Ehsan Hallaji, Roozbeh Razavi Far and Mehrdad Saif, “Generative Adversarial Dimensionality Reduction for Diagnosing Faults and Attacks in Cyber-Physical Systems”, Neurocomputing, Vol. 440, pp. 101-110, 2021.
- E. Lin, C. Lin and H.Y. Lane, “Relevant Applications of Generative Adversarial Networks in Drug Design and Discovery: Molecular De Novo Design, Dimensionality Reduction, and De Novo Peptide and Protein Design”, Molecules, Vol. 25, No. 14, pp. 3250-3265, 2020.
- H. Ding, L. Chen and X. Cui, “Imbalanced Data Classification: A KNN and Generative Adversarial Networks-Based Hybrid Approach for Intrusion Detection”, Future Generation Computer Systems, Vol. 131, pp. 240-254, 2022.
- S. Chan and A.H. Elsheikh, “Parametrization of Stochastic Inputs using Generative Adversarial Networks with Application in Geology”, Frontiers in Water, Vol. 2, pp. 1-5, 2020.
- D. Li, C. Du and H. He, “Semi-Supervised Cross-Modal Image Generation with Generative Adversarial Networks”, Pattern Recognition, Vol. 100, pp. 107085-107098, 2020.
- S. Latif, S., Jurdak and B.W. Schuller, “Augmenting Generative Adversarial Networks for Speech Emotion Recognition”, Proceedings of International Conference on Recent Trends in Computer Science, pp. 1-8, 2020.
- M. Marouf, P. Machart, V. Bansal, C. Kilian and S. Bonn, “Realistic in Silico Generation and Augmentation of Single-Cell RNA-Seq Data using Generative Adversarial Networks”, Nature Communications, Vol. 11, No. 1, pp. 1-12, 2020.
- F. Zhu, F. Ye, Y. Fu, Q. Liu and B. Shen, “Electrocardiogram Generation with a Bidirectional LSTM-CNN Generative Adversarial Network”, Scientific Reports, Vol. 9, No. 1, pp. 1-11, 2019.
- J. Viola, Y. Chen and J. Wang, “FaultFace: Deep Convolutional Generative Adversarial Network (DCGAN) based Ball-Bearing Failure Detection Method”, Information Sciences, Vol. 542, pp. 195-211, 2021.
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- J. Feng, J. Chen, X., Zhang and T. Yu, “Generative Adversarial Networks based on Collaborative Learning and Attention Mechanism for Hyperspectral Image Classification”, Remote Sensing, Vol. 12, No. 7, pp. 1149- 1162, 2020.
- H. Nguyen, D. Zhuang, P.Y. Wu and M. Chang, “Autogan-based Dimension Reduction for Privacy Preservation”, Neurocomputing, Vol. 384, pp. 94-103, 2020.
- W. Zhao, J. Chen and Y. Qu, “Sample Generation with Self-Attention Generative Adversarial Adaptation Network (SaGAAN) for Hyperspectral Image Classification”, Remote Sensing, Vol. 12, No. 5, pp. 843-852, 2020.