Pub Date : 2010-11-01DOI: 10.1109/RSTSCC.2010.5712868
R. Maheswaran, R. Khosa
The CO2 levels in the atmosphere serve as an indicator for global warming. The forecasts of CO2 levels that may be expected in the foreseeable future would help in formulating credible policies as well as plans towards a sustainable future. The objective of this paper is to analyse the time series of CO2 levels observed at Mauna Loa (Hawaii) using wavelet analysis and to develop a recursive forecasting model based on wavelet decomposition. Wavelet analysis enables a decomposition of a given time series into a multi resolution series providing, in the process, an insight into the likely causative influences that operate at various scales. The main advantage of wavelet analysis is that it yields simultaneous time-frequency description of the given time series while isolating features that are localized in time as well as those occurring over a longer term time horizon. Additionally, multi resolution capability of wavelet decomposition can also reveal changes or perturbations that may be masked at a single scale. The wavelet analysis of the observed CO2 levels reveals that the trend underlying the CO2 levels is time varying and there are significant changes in the slope of the trend around 1992. In order to incorporate these changes, recursive forecasting wavelet models were developed for long term forecasting and the results reveal their superior performance over traditional models like SARIMA.
{"title":"Wavelet-based model for long-term forecasting of CO2 levels in atmosphere","authors":"R. Maheswaran, R. Khosa","doi":"10.1109/RSTSCC.2010.5712868","DOIUrl":"https://doi.org/10.1109/RSTSCC.2010.5712868","url":null,"abstract":"The CO2 levels in the atmosphere serve as an indicator for global warming. The forecasts of CO2 levels that may be expected in the foreseeable future would help in formulating credible policies as well as plans towards a sustainable future. The objective of this paper is to analyse the time series of CO2 levels observed at Mauna Loa (Hawaii) using wavelet analysis and to develop a recursive forecasting model based on wavelet decomposition. Wavelet analysis enables a decomposition of a given time series into a multi resolution series providing, in the process, an insight into the likely causative influences that operate at various scales. The main advantage of wavelet analysis is that it yields simultaneous time-frequency description of the given time series while isolating features that are localized in time as well as those occurring over a longer term time horizon. Additionally, multi resolution capability of wavelet decomposition can also reveal changes or perturbations that may be masked at a single scale. The wavelet analysis of the observed CO2 levels reveals that the trend underlying the CO2 levels is time varying and there are significant changes in the slope of the trend around 1992. In order to incorporate these changes, recursive forecasting wavelet models were developed for long term forecasting and the results reveal their superior performance over traditional models like SARIMA.","PeriodicalId":254761,"journal":{"name":"Recent Advances in Space Technology Services and Climate Change 2010 (RSTS & CC-2010)","volume":"343 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133929579","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 : 2010-11-01DOI: 10.1109/RSTSCC.2010.5712838
S. Aravindan, P. Kaleeswaran
The aim of this paper is to estimate the pose (attitude) of a low altitude aerial vehicle using quaternion theory and kalman filter method. Initially using quaternion theory, the quaternion rates are determined to compute the vector quaternion. This vector quaternion is used to determine the quaternion transition matrix. So, after finding out these values the state variable assignment is written according to the characteristic movement of an aerial vehicle. While framing the equation, the altitude of an aerial vehicle is taken considerably low and the fourteen variables are considered to frame this equation namely linear translation in each axis, linear velocities in each axis, three directions, the deceleration of the vehicle, rotation quaternion in each axis, rotation velocity in each axis. Initially, the values are assumed from INS and the calculations are done. Thereafter the kalman filter method is used to estimate the state function in order to determine the position, velocity and position of the aerial vehicle
{"title":"Pose estimation of a low altitude aerial vehicle using quaternion theory and kalman filter","authors":"S. Aravindan, P. Kaleeswaran","doi":"10.1109/RSTSCC.2010.5712838","DOIUrl":"https://doi.org/10.1109/RSTSCC.2010.5712838","url":null,"abstract":"The aim of this paper is to estimate the pose (attitude) of a low altitude aerial vehicle using quaternion theory and kalman filter method. Initially using quaternion theory, the quaternion rates are determined to compute the vector quaternion. This vector quaternion is used to determine the quaternion transition matrix. So, after finding out these values the state variable assignment is written according to the characteristic movement of an aerial vehicle. While framing the equation, the altitude of an aerial vehicle is taken considerably low and the fourteen variables are considered to frame this equation namely linear translation in each axis, linear velocities in each axis, three directions, the deceleration of the vehicle, rotation quaternion in each axis, rotation velocity in each axis. Initially, the values are assumed from INS and the calculations are done. Thereafter the kalman filter method is used to estimate the state function in order to determine the position, velocity and position of the aerial vehicle","PeriodicalId":254761,"journal":{"name":"Recent Advances in Space Technology Services and Climate Change 2010 (RSTS & CC-2010)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133974969","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 : 2010-11-01DOI: 10.1109/RSTSCC.2010.5712861
T. Ravi, V. Kannan
In this paper, we have proposed the compact modeling of ballistic CNTFET and the performance analysis of the developed model using various characteristics. The carbon nanotube transistors (CNTFET) are currently considered and most promising component to replace the generation of MOSFET transistor, especially in order to surpass the short channel effects in the component. For this new generation of transistor (CNTFET) with very short channel, the majority of models describing electrical conduction based on the process of ballistic transport. We propose design-oriented compact models for ballistic CNTFET. We are interested more particularly to the drain current and the quantum capacitance as a function of the gate voltage (VGS), for various values of the nanotube diameter and the oxide thickness. These models have been simulated and the results that are obtained were in excellent agreement with the theoretical calculations.
{"title":"Modeling and performance analysis of ballistic carbon nanotube field effect transistor (CNTFET)","authors":"T. Ravi, V. Kannan","doi":"10.1109/RSTSCC.2010.5712861","DOIUrl":"https://doi.org/10.1109/RSTSCC.2010.5712861","url":null,"abstract":"In this paper, we have proposed the compact modeling of ballistic CNTFET and the performance analysis of the developed model using various characteristics. The carbon nanotube transistors (CNTFET) are currently considered and most promising component to replace the generation of MOSFET transistor, especially in order to surpass the short channel effects in the component. For this new generation of transistor (CNTFET) with very short channel, the majority of models describing electrical conduction based on the process of ballistic transport. We propose design-oriented compact models for ballistic CNTFET. We are interested more particularly to the drain current and the quantum capacitance as a function of the gate voltage (VGS), for various values of the nanotube diameter and the oxide thickness. These models have been simulated and the results that are obtained were in excellent agreement with the theoretical calculations.","PeriodicalId":254761,"journal":{"name":"Recent Advances in Space Technology Services and Climate Change 2010 (RSTS & CC-2010)","volume":"123 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129502158","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 : 2010-11-01DOI: 10.1109/RSTSCC.2010.5712873
D. Amrutha, R. Sakthivel
Since everywhere the carbon budgeting and sequestration process is going on to prevent so many natural devastation, this is the appropriate time to show the merits of TES into light. By keeping this in mind, an idea has been conceived to ascertain the functionalities and uses of a contemporary instrument which plays vital role in measuring carbon concentration in the Earth's atmosphere, conceptually.
{"title":"Certain newer Techniques for Carbon and Climate Change","authors":"D. Amrutha, R. Sakthivel","doi":"10.1109/RSTSCC.2010.5712873","DOIUrl":"https://doi.org/10.1109/RSTSCC.2010.5712873","url":null,"abstract":"Since everywhere the carbon budgeting and sequestration process is going on to prevent so many natural devastation, this is the appropriate time to show the merits of TES into light. By keeping this in mind, an idea has been conceived to ascertain the functionalities and uses of a contemporary instrument which plays vital role in measuring carbon concentration in the Earth's atmosphere, conceptually.","PeriodicalId":254761,"journal":{"name":"Recent Advances in Space Technology Services and Climate Change 2010 (RSTS & CC-2010)","volume":"763 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116132188","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 : 2010-11-01DOI: 10.1109/RSTSCC.2010.5712846
B. Martin, V. Juliet
RPW is a destructive pest which infests palms of age ranging from 5–20 yrs. Control measure if adopted timely on infestation can lead to saving of palm, else ends up in outright death of palm. RPW usually infests palm in its younger stage while adult causes damage through feeding. The burrowing of the larva into palm heart causes more mortality. Major symptoms such as crown loss or leaf wilt are usually visible only after palm has become infected. By the time these symptoms are observed the damage is usually high to kill the tree. Hence in order to detect the presence of weevil even at the early stage the sound of larvae burrowing and chewing are recorded using digital voice recorders. The recorded sound file is further analyzed. In sound processing, Mel frequency cepstrum is a representation of short term power spectrum of a sound based on a linear cosine transform of a log power spectrum on a nonlinear Mel scale of frequency. MFCC's have been used for feature extraction. In frequency domain, the most often used feature extraction is Mel frequency cepstral coding using Mel scale.
{"title":"Extraction of feature from the acoustic activity of RPW using MFCC","authors":"B. Martin, V. Juliet","doi":"10.1109/RSTSCC.2010.5712846","DOIUrl":"https://doi.org/10.1109/RSTSCC.2010.5712846","url":null,"abstract":"RPW is a destructive pest which infests palms of age ranging from 5–20 yrs. Control measure if adopted timely on infestation can lead to saving of palm, else ends up in outright death of palm. RPW usually infests palm in its younger stage while adult causes damage through feeding. The burrowing of the larva into palm heart causes more mortality. Major symptoms such as crown loss or leaf wilt are usually visible only after palm has become infected. By the time these symptoms are observed the damage is usually high to kill the tree. Hence in order to detect the presence of weevil even at the early stage the sound of larvae burrowing and chewing are recorded using digital voice recorders. The recorded sound file is further analyzed. In sound processing, Mel frequency cepstrum is a representation of short term power spectrum of a sound based on a linear cosine transform of a log power spectrum on a nonlinear Mel scale of frequency. MFCC's have been used for feature extraction. In frequency domain, the most often used feature extraction is Mel frequency cepstral coding using Mel scale.","PeriodicalId":254761,"journal":{"name":"Recent Advances in Space Technology Services and Climate Change 2010 (RSTS & CC-2010)","volume":"234 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121421011","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 : 2010-11-01DOI: 10.1109/RSTSCC.2010.5712855
R. Jeberson Retna Raj, T. Sasipraba
Disaster management system based on GIS web services exclusively designed to handle the disaster such as tsunami, flood, earthquake, cyclone etc. The necessity of the system is many people lives in danger because of lack of providing timely help to the affected victims and tardy response of relief works. Disaster management system incorporates with GIS web services to identify the affected areas and possible routes to reach the location. To the general public the system provides the information of getting the medical aid and relief materials to the deceased victim. In this paper, we have designed a prototype for disaster management system using GIS web service which envision of providing the required services to the needy people. The system consisting of three important services police, fire and medical has been developed using GIS web services and using AJAX (Asynchronous JavaScript and XML)approach the spatial data are integrated into the map. Since the spatial data are bulk in size, integration of GIS data with the map is a challenge for GIS developers. In the conventional process every time the request will be processed by the server and send back the response to the client. Since this is a time consuming process and the performance of the system will be deteriorated. To address this issue, the AJAX was introduced to integrate with the GIS web service. By integrating AJAX with GIS web services, the map and the spatial data can be loaded efficiently into the client browser and loading time can be minimized. Moreover, Quality of Service (QoS) optimization using fuzzy inference rule based approach has been introduced to select the best web service in case of similar service is available for same functionality in the internet. Using this approach QoS attributes of response time, throughput, availability and reliability of GIS web service are optimized and according to the user's requirement best service will be provided to the client. The system also designed to support mobile environment.
{"title":"Disaster management system based on GIS web services","authors":"R. Jeberson Retna Raj, T. Sasipraba","doi":"10.1109/RSTSCC.2010.5712855","DOIUrl":"https://doi.org/10.1109/RSTSCC.2010.5712855","url":null,"abstract":"Disaster management system based on GIS web services exclusively designed to handle the disaster such as tsunami, flood, earthquake, cyclone etc. The necessity of the system is many people lives in danger because of lack of providing timely help to the affected victims and tardy response of relief works. Disaster management system incorporates with GIS web services to identify the affected areas and possible routes to reach the location. To the general public the system provides the information of getting the medical aid and relief materials to the deceased victim. In this paper, we have designed a prototype for disaster management system using GIS web service which envision of providing the required services to the needy people. The system consisting of three important services police, fire and medical has been developed using GIS web services and using AJAX (Asynchronous JavaScript and XML)approach the spatial data are integrated into the map. Since the spatial data are bulk in size, integration of GIS data with the map is a challenge for GIS developers. In the conventional process every time the request will be processed by the server and send back the response to the client. Since this is a time consuming process and the performance of the system will be deteriorated. To address this issue, the AJAX was introduced to integrate with the GIS web service. By integrating AJAX with GIS web services, the map and the spatial data can be loaded efficiently into the client browser and loading time can be minimized. Moreover, Quality of Service (QoS) optimization using fuzzy inference rule based approach has been introduced to select the best web service in case of similar service is available for same functionality in the internet. Using this approach QoS attributes of response time, throughput, availability and reliability of GIS web service are optimized and according to the user's requirement best service will be provided to the client. The system also designed to support mobile environment.","PeriodicalId":254761,"journal":{"name":"Recent Advances in Space Technology Services and Climate Change 2010 (RSTS & CC-2010)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122675611","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 : 2010-11-01DOI: 10.1109/RSTSCC.2010.5712888
Antony Mathew Sajan, J. Amarnath
The wind power potential in India estimated by Centre for Wind Energy Technology (CWET) at the macro level is around 48581 MW. This is based on the assumption that 1% land is available for wind farm development and a more precise estimation of the wind potential land in India considering the wind resource, electrical grid infrastructure, physical, socioeconomic and environment factors would further the development in a planned and systematic manner. This paper strives to identify impacts due to wind energy development regarding environment and socio-economic factors and its mitigation techniques.The identification of environment and socio-economic factors as one important input will assist in a larger study for the determination and quantification of wind resource potential land for wind energy projects into ranges and classes using ArcGIS, WaSP(Wind Analysis, Analysis and Application model) and Multi Criteria Decision making(MCDA).
{"title":"Identification of environment and socio-economic impact factors for wind resource land mapping using ArcGIS, WaSP and Multi Criteria Decision analysis (MCDA)","authors":"Antony Mathew Sajan, J. Amarnath","doi":"10.1109/RSTSCC.2010.5712888","DOIUrl":"https://doi.org/10.1109/RSTSCC.2010.5712888","url":null,"abstract":"The wind power potential in India estimated by Centre for Wind Energy Technology (CWET) at the macro level is around 48581 MW. This is based on the assumption that 1% land is available for wind farm development and a more precise estimation of the wind potential land in India considering the wind resource, electrical grid infrastructure, physical, socioeconomic and environment factors would further the development in a planned and systematic manner. This paper strives to identify impacts due to wind energy development regarding environment and socio-economic factors and its mitigation techniques.The identification of environment and socio-economic factors as one important input will assist in a larger study for the determination and quantification of wind resource potential land for wind energy projects into ranges and classes using ArcGIS, WaSP(Wind Analysis, Analysis and Application model) and Multi Criteria Decision making(MCDA).","PeriodicalId":254761,"journal":{"name":"Recent Advances in Space Technology Services and Climate Change 2010 (RSTS & CC-2010)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128899048","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 : 2010-11-01DOI: 10.1109/RSTSCC.2010.5712801
P. Aravinthan, N. Gopala Krishnan, P. Arun srinivas, N. Vigneswaran
In the growth of population in world, people use vehicles like sedan and lorry to meet their comfort and necessity. This lead to heavy traffic, pollution etc. at the same time there is increase in traffic violation. In order to detect the violation by the driver, we have designed a tool. This tool is employed in the toll booth, so that it will monitor the vehicles which are moving. If any vehicle violates the traffic rules by crossing the speed limit, by not obeying the traffic signals and rules it will take photograph of the vehicle and send the picture of the vehicle and its details like car number to the next booth in few seconds by advanced transmission techniques. With the help of this transmitted information which is received in next subsequent booth so that the cops in next booth will be alerted and will be able to stop the vehicle. This tool which is undergoing testing and validation process once provides satisfactory result can be installed in real time.
{"title":"Monitoring and transmitting the details of vehicle not obeying traffic rules to the nearby surrounding stations for instant action","authors":"P. Aravinthan, N. Gopala Krishnan, P. Arun srinivas, N. Vigneswaran","doi":"10.1109/RSTSCC.2010.5712801","DOIUrl":"https://doi.org/10.1109/RSTSCC.2010.5712801","url":null,"abstract":"In the growth of population in world, people use vehicles like sedan and lorry to meet their comfort and necessity. This lead to heavy traffic, pollution etc. at the same time there is increase in traffic violation. In order to detect the violation by the driver, we have designed a tool. This tool is employed in the toll booth, so that it will monitor the vehicles which are moving. If any vehicle violates the traffic rules by crossing the speed limit, by not obeying the traffic signals and rules it will take photograph of the vehicle and send the picture of the vehicle and its details like car number to the next booth in few seconds by advanced transmission techniques. With the help of this transmitted information which is received in next subsequent booth so that the cops in next booth will be alerted and will be able to stop the vehicle. This tool which is undergoing testing and validation process once provides satisfactory result can be installed in real time.","PeriodicalId":254761,"journal":{"name":"Recent Advances in Space Technology Services and Climate Change 2010 (RSTS & CC-2010)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130219041","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 : 2010-11-01DOI: 10.1109/RSTSCC.2010.5712789
S. Baliarsingh, S. Srichandan, T. Padmavati, S. Naik, K. Sahu
So far many toxicologic studies are made earlier; we studied the acute toxicity estimation related to some specific identified freshwater zooplanktons of Paradip (Harbour City) area of Jagatsingpur District, Orissa, India which is situated on the bank of Mahanadi River. The study area is prone to heavy metal pollution because mineral based industries in relation to zinc, lead and cadmium are common in and around. Heavy metal pollutants are affecting aquatic life in their surrounding waters. Water quality analysis of sampling location has shown concentration of lead as 0.06–0.55 ppm, zinc 0.04–0.35 ppm and cadmium 0.00–0.01 ppm which are beyond the BIS permissible limit for drinking water. As many people depend upon the fisheries from this area and public health is concerned, acute toxicity to zooplankton was estimated as it is in the middle of food chain. So, after conducting static bioassay, acute toxicity of zinc, lead and cadmium to fresh water zooplanktons was estimated. Whole zooplankton communities were exposed to different heavy metal stresses. Zooplankton community included nine planktonic forms i.e. Heliodiaptomus viduus, Mesocyclops hyalinus, Cyclocypris globosa, Diaphanosoma sarsi, Moina brachiata, Stenocypris malcolmsoni, Alona quadrangularis, Asplanchna brightwelli, Ceriodaphnia were exposed to different heavy metal stresses. Cadmium was found to be most toxic and lead was least toxic to zooplankton. Ostracods and Cyclops were in resistant forms and Rotifers were in sensitive forms in relation to metallic exposure. Sensitivity pattern observed during laboratory experiments was found to be in accordance with biodiversity variation of zooplankton in different sampling locations of Mahanadi River System in Paradip (Harbour City) area of Jagatsingpur District, Orissa.
{"title":"Accumulation of heavy metals by freshwater zooplankton - a toxicological study","authors":"S. Baliarsingh, S. Srichandan, T. Padmavati, S. Naik, K. Sahu","doi":"10.1109/RSTSCC.2010.5712789","DOIUrl":"https://doi.org/10.1109/RSTSCC.2010.5712789","url":null,"abstract":"So far many toxicologic studies are made earlier; we studied the acute toxicity estimation related to some specific identified freshwater zooplanktons of Paradip (Harbour City) area of Jagatsingpur District, Orissa, India which is situated on the bank of Mahanadi River. The study area is prone to heavy metal pollution because mineral based industries in relation to zinc, lead and cadmium are common in and around. Heavy metal pollutants are affecting aquatic life in their surrounding waters. Water quality analysis of sampling location has shown concentration of lead as 0.06–0.55 ppm, zinc 0.04–0.35 ppm and cadmium 0.00–0.01 ppm which are beyond the BIS permissible limit for drinking water. As many people depend upon the fisheries from this area and public health is concerned, acute toxicity to zooplankton was estimated as it is in the middle of food chain. So, after conducting static bioassay, acute toxicity of zinc, lead and cadmium to fresh water zooplanktons was estimated. Whole zooplankton communities were exposed to different heavy metal stresses. Zooplankton community included nine planktonic forms i.e. Heliodiaptomus viduus, Mesocyclops hyalinus, Cyclocypris globosa, Diaphanosoma sarsi, Moina brachiata, Stenocypris malcolmsoni, Alona quadrangularis, Asplanchna brightwelli, Ceriodaphnia were exposed to different heavy metal stresses. Cadmium was found to be most toxic and lead was least toxic to zooplankton. Ostracods and Cyclops were in resistant forms and Rotifers were in sensitive forms in relation to metallic exposure. Sensitivity pattern observed during laboratory experiments was found to be in accordance with biodiversity variation of zooplankton in different sampling locations of Mahanadi River System in Paradip (Harbour City) area of Jagatsingpur District, Orissa.","PeriodicalId":254761,"journal":{"name":"Recent Advances in Space Technology Services and Climate Change 2010 (RSTS & CC-2010)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129682979","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 : 2010-11-01DOI: 10.1109/RSTSCC.2010.5712837
P. Ganesan, V. Rajini
Image segmentation denotes a process by which an image is partitioned into non-intersecting regions and each region is homogeneous. Many approaches have been proposed for the color image segmentation. Among these approaches, the clustering methods have been extensively investigated and used. Fuzzy C-Means has been used in image segmentation widely. However, it is not good for the image with noise and it also takes more time for execution. In this paper a new modified Fuzzy Possibilistic C-Means (FPCM) clustering algorithm is proposed for color image segmentation of any type of color images. This new proposed clustering algorithm exhibits the robustness to noise, and also faster as compared to the traditional one. The results of experiments show better robustness of our algorithms to noise than other segmentation algorithms. The resultant segmented images are evaluated using various image quality parameters such as PSNR, execution time and number of iterations & clusters. This new proposed algorithm has been tested with images of various formats, size and resolution and the results are proven to be better.
{"title":"A method to segment color images based on modified Fuzzy-Possibilistic-C-Means clustering algorithm","authors":"P. Ganesan, V. Rajini","doi":"10.1109/RSTSCC.2010.5712837","DOIUrl":"https://doi.org/10.1109/RSTSCC.2010.5712837","url":null,"abstract":"Image segmentation denotes a process by which an image is partitioned into non-intersecting regions and each region is homogeneous. Many approaches have been proposed for the color image segmentation. Among these approaches, the clustering methods have been extensively investigated and used. Fuzzy C-Means has been used in image segmentation widely. However, it is not good for the image with noise and it also takes more time for execution. In this paper a new modified Fuzzy Possibilistic C-Means (FPCM) clustering algorithm is proposed for color image segmentation of any type of color images. This new proposed clustering algorithm exhibits the robustness to noise, and also faster as compared to the traditional one. The results of experiments show better robustness of our algorithms to noise than other segmentation algorithms. The resultant segmented images are evaluated using various image quality parameters such as PSNR, execution time and number of iterations & clusters. This new proposed algorithm has been tested with images of various formats, size and resolution and the results are proven to be better.","PeriodicalId":254761,"journal":{"name":"Recent Advances in Space Technology Services and Climate Change 2010 (RSTS & CC-2010)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132669852","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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