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Co-Authors
- Joe Annaji
- S. V. Sowmya
- M. Ezhilarasi
- M. Abinaya
- M. LydiaSindhuja
- M. Monica
- Chinnusamy Sujitha
- A. Ananthi Christy
- S. Rajasomashekar
- S. Ravi
- P. U. Poornima
- Siddharth Pachpor
- P. Ajay D. Vimal Raj
- C. Sujitha
- H. Bharath Varma
- Arul Mecloy Lobo
- M. Ishwarya Niranjana
- M. Vignesh
- T. Saravanakumar
- S. Amrish
- K. Dharun
- D. Anandharaj
- C. Deepak Kumar
Journals
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
Brindha, R.
- Postoperative Pulmonary Complications among Patients Undergone Percutaneous Nephrolithotomy
Abstract Views :236 |
PDF Views:147
Authors
Affiliations
1 Annapoorna Medical College, Salem, Tamil Nadu, IN
2 Vinayaka Mission Hi-Tech Hospital Unit of Vinayaka Mission Kirupanathavariyar Medical College, Salem, Tamil Nadu, IN
1 Annapoorna Medical College, Salem, Tamil Nadu, IN
2 Vinayaka Mission Hi-Tech Hospital Unit of Vinayaka Mission Kirupanathavariyar Medical College, Salem, Tamil Nadu, IN
Source
International Journal of Medical and Dental Sciences, Vol 4, No 2 (2015), Pagination: 795-801Abstract
Background: Post-operative pulmonary complications (PPC) are not unusual following anesthesia and surgery in PCNL as the incidence is being higher. Complication rates vary according to different procedures and different types of anesthesia and may be affected by the patient condition.
Objective: To assess postoperative pulmonary complications among the patients who had undergone PCNL.
Methodology: This was a prospective observational study of 111 consecutive adult patients over a period of one year who underwent PCNL surgery. The data of the patient, surgery and anesthesia was collected and analyzed to find association with PPC.
Results: Seven patients (6.3%) had developed pulmonary complications postoperatively, six of them had pneumothorax and one had atelectasis who, died at the 15th postoperative day due to respiratory failure. All the 6 patients with pneumothorax were managed by inserting a chest drain. The other non pulmonary complications among the patients were shivering (40%), blood loss (15%), hyperthermia (9%). It is seen that patients who had a history of smoking and the patients who were operated on the left kidney had shown more incidence of developing pneumothorax and the difference was found to be statistically significant (p<.05).
Conclusions: From the present study it can be concluded that the most common type of post-operative complication following PCNL is pulmonary, with pneumothorax. A close working relationship between the surgeon and anesthetist is essential to coordinate the access puncture with deflation of lung and ventilator standstill to minimize the chances of pleural injury.
Keywords
Pulmonary Complications, Nephrolithotomy, Pneumothorax.Full Text
References
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- Goodwin WE, WC Casey. Percutaneous trocar (needle) nephrostomy in hydronephrosis. J Am Med Assoc 1955; 157(11):891-894.
- Stables DP. Percutaneous nephrostomy: techniques, indications, and results. Urol Clin North Am 1982;9(1):15-29.
- Dindo D, Demartines N, Clavien PA. Classification of surgical complications: A new proposal with evaluation in a cohort of 6336 patients and results of a survey. Ann Surg 2004;240:205–213.
- Clavien PA, Barkun J, de Oliveira ML. The Clavien- Dindo classification of surgical complications: Five-year experience. Ann Surg 2009;250:187–196.
- Rozentsveig V, Neulander EZ, Roussabrov E. Anesthetic considerations during percutaneous nephrolithotomy. J Clin Anesth 2007;19:351-5.
- Mehrabi S, Karimzadeh Shirazi K. Results and complications of spinal anesthesia in percutaneous nephrolithotomy. Urol J 2010;7:22-5.
- Aravantinos E, Karatzas A, Gravas S, Tzortzis V, Melekos M. Feasibility of percutaneous nephrolithotomy under assisted local anaesthesia: a prospective study on selected patients with upper urinary tract obstruction. Eur Urol 2007;51:224-7.
- El-Husseiny T, Moraitis K, Maan Z. Percutaneous endourologic procedures in high-risk patients in the lateral decubitus position under regional anesthesia. J Endourol 2009;23:1603-6.
- Sadrollah Mehrabi, Ali Mousavi Zadeh, Mehdi Akbartabar Toori, Farhad Mehrabi. General Versus Spinal Anesthesia in Percutaneous Nephrolithotomy. Urology journal 2013;10(1):756 – 61.
- Lawrence VA, Dhanda R, Hilsenbeck SG, Page CP. Risk of pulmonary complications after elective abdominal surgery. Chest 1996;110:744–750.
- Rock P, Rich PB. Postoperative pulmonary complications. Curr Opin Anaesthesiol 2003;16:123–132.
- Canet J, Mazo V. Postoperative pulmonary complications. Minerva Anestesiol 2010;76: 138–143.
- Smetana GW, Lawrence VA, Cornell JE. American College of Physicians: Preoperative pulmonary risk stratification for noncardiothoracic surgery: systematic review for the American College of Physicians. Ann Intern Med 2006;144:581– 595.
- Canet J, Gallart L. Predicting postoperative pulmonary complications in the general population. Curr Opin Anaesthesiol 2013;26:107–115.
- Gupta R, Kumar A, Kapoor R, Srivastava. Prospective evaluation of safety and efficacy of the supracostal approach for percutaneous nephrolithotomy. BJU international 2002;90:809-13.
- Munver R, Delvecchio FC, Newman GE. Critical analysis of supracostal access for percutaneous renal surgery. J Urol 2001;166:1242-46.
- Kukreja R, Desai N, Patel S, Bapat S. Factors affecting blood loss during percutaneous nephrolithotomy: Prospective study. J Endourol 2004;18:715-722.
- C Chang Te Lin, Yeong chin Jou, Ming-Chin Cheng, Cheng Huang Shen, Pi-heng. Delayed hydrothorax after percutaneous nephrolithotomy. JTUA 2009;20(4):190-91.
- Hahn RG. Fluid absorption in endoscopic surgery. Br J Anaesth 2006;96:8– 20.
- Netto NR Jr, Ikonomidis J, Ikari O, Claro JA. Comparative study of percutaneous access for staghorn calculi. Urology 2005;65:659– 662.
- Shilo Y, Kleinmann J, Zisman A, Peer A, Lindner A, Siegel YI. Comparative morbidity for different accesses in percutaneous nephrolithotripsy. Harefuah 2006;145:107– 110.
- Gili Palnizkya, Sarel Halachmib, Michal Barak. Pulmonary Complications following Percutaneous Nephrolithotomy. Curr Urol 2013;7:113–116.
- Multiple Image Watermarking in DWT Domain Using Neural Network
Abstract Views :145 |
PDF Views:3
Authors
R. Brindha
1,
M. Ezhilarasi
1
Affiliations
1 Avinashilingam University for Women, Coimbatore, IN
1 Avinashilingam University for Women, Coimbatore, IN
Source
Digital Image Processing, Vol 1, No 1 (2009), Pagination: 16-20Abstract
This paper proposes the formulation of a more secure image watermarking methodology based on exploitation of the perpetual capacity of Discrete Wavelet Transforms (DWT) and reversible compression capability of Counter Propagation Neural network (CPN). The usefulness of CPN in mapping watermark images into few bits and subsequent embedding with the cover images in wavelet domain is demonstrated. The proposed method exhibits high security,high capacity and high imperceptibility features. Low embedding and tracking costs and low probability of coincidence are making this method unique among the previously investigated techniques by various researchers.Keywords
Image Watermarking, Counter Propagation Neural Network, DWT, Digital Watermarking, Cryptography, Image Mapping, Neural Network.
- Implementation of Protection and Accident Identification System for a Vehicle
Abstract Views :219 |
PDF Views:4
Authors
Affiliations
1 Dept. Electronics and Communication Engineering, Sri Eshwar College of Engineering, Kinathukadavu, IN
1 Dept. Electronics and Communication Engineering, Sri Eshwar College of Engineering, Kinathukadavu, IN
Source
Automation and Autonomous Systems, Vol 6, No 2 (2014), Pagination: 58-62Abstract
Now-a-days most of the public owns a vehicle,meanwhile the theft is also happening. The safety of vehicles is extremely essential. Vehicle tracking and locking system installed in the vehicle, to track the place and locking engine motor. The place of the vehicle identified using Global Positioning system (GPS) and Global system mobile communication (GSM). These systems constantly watch a moving Vehicle and report the status on demand. When the theft identified, the responsible person send SMS to the microcontroller, then microcontroller issue the control signals to stop the engine motor. Authorized person need to send the password to controller to restart the vehicle and open the door. This is more secured, reliable and low cost.Keywords
Vehicle Tracking, Locking, Microcontroller, GPS, GSM.- PWM-based Controller of Output Voltage for Wind- Driven Individual Self-Excited Induction Generator
Abstract Views :147 |
PDF Views:0
Authors
Chinnusamy Sujitha
1,
A. Ananthi Christy
1,
S. Rajasomashekar
2,
S. Ravi
3,
R. Brindha
1,
P. U. Poornima
1,
Siddharth Pachpor
2
Affiliations
1 Department of EEE, SRM University, Chennai – 603203, Tamil Nadu, IN
2 Department of Electrical Engineering, Annamalai University, Chidambaram – Chidambaram, Tamil Nadu, IN
3 Department of Electrical Engineering, Botswana International University of Science and Technology, BW
1 Department of EEE, SRM University, Chennai – 603203, Tamil Nadu, IN
2 Department of Electrical Engineering, Annamalai University, Chidambaram – Chidambaram, Tamil Nadu, IN
3 Department of Electrical Engineering, Botswana International University of Science and Technology, BW
Source
Indian Journal of Science and Technology, Vol 9, No 41 (2016), Pagination:Abstract
Background/Objectives: The objective of this research owes to propose a fixed voltage controller for wind energy based individual Self-Excited Induction Generator (SEIG). The ideology is that simple as to exploit the use of a voltage source inverter, employing with the fundamental principle of PWM technique that in corporate an individual battery source for the smooth operation. Methods/Statistical Analysis: The incidence of depressed voltage regulation because of the unexpected alteration in the speed and the load is one of the main demerits of the SEIG. In order to overcome this complicated situation, a modification of phase shift in the sinusoidal PWM is introduced, which standardizes the voltage of SEIG, when it is subjected to unexpected alteration in the load. Findings: It is likely to attain a fixed value of voltage when the load is altered from empty load to the complete load. The simulation of the presented scheme has been carried out by MATLAB/SIMULINK modeling. The consistency of the proposed model is determined by the outcomes of the prototype testing. Application/Improvements: By varying the modulating index of the voltage source inverter, the stabilization of output voltage for SEIG has been achieved. One of its major advantages is that by simply checking the dc link voltage, the characteristics of the current state can be predictable.Keywords
Alteration in Load, Induction Generator, PWM, Self-Excited, Voltage Controller, Voltage Source Inverter.Full Text
- The Effects of Magnetically Coupled Bidirectional Battery Charger and its Performances
Abstract Views :164 |
PDF Views:0
Authors
A. Ananthi Christy
1,
R. Brindha
1,
P. Ajay D. Vimal Raj
2,
S. Rajasomashekar
3,
P. U. Poornima
1,
C. Sujitha
1
Affiliations
1 Department of EEE, SRM University, Chennai - 603203, Tamil Nadu,, IN
2 Department of EEE, Pondicherry Engineering College, Pondicherry - 605014, Tamil Nadu, IN
3 Department of EE, Annamalai University, Annamalainagar - 608002, Tamil Nadu,, IN
1 Department of EEE, SRM University, Chennai - 603203, Tamil Nadu,, IN
2 Department of EEE, Pondicherry Engineering College, Pondicherry - 605014, Tamil Nadu, IN
3 Department of EE, Annamalai University, Annamalainagar - 608002, Tamil Nadu,, IN
Source
Indian Journal of Science and Technology, Vol 9, No 38 (2016), Pagination:Abstract
Objectives: Batteries have to be charged with constant current when they have very low charge and have to be charged at constant voltage when they have high charge. Methods/Statistical Analysis: To take care of the above mentioned objective a bidirectional battery charger is developed which can work as buck converter to boost converter from one direction to another. The buck operation can be used to charge a low voltage battery from a high voltage source and the boost operation is for vice versa. Findings: A Magnetically Coupled Bidirectional Battery Charger, the low voltage battery and high voltage battery have smooth and stable transition from Constant Current (CC) to Constant Voltage (CV) that can be achieved using neither control loop nor any extra switches. Applications/Improvements: To amplify the dc input voltage to the required high voltage level, an LC-circuit with high quality factor (Q-factor) is employed, in which, to make and break a high current pulse through the inductance, a power switch of MOSFET is employed. Usually, energy is stored in an inductance, when the current is made to flow through the inductance and if this current is cut, then the stored energy in the inductance is transferred to capacitance, which results in a high voltage across the capacitor that is filtered to be used to charge the high voltage batteries.Keywords
Bidirectional Battery Charger, Buck/Boost Converter, Magnetically Coupled, Quality factor (Q-factor).Full Text
- Fuzzy-based Strategy for Voltage and Reactive Power Scheduling
Abstract Views :168 |
PDF Views:0
Authors
S. Rajasomashekar
1,
A. Ananthi Christy
1,
P. U. Poornima
2,
R. Brindha
2,
C. Sujitha
2,
H. Bharath Varma
2,
Arul Mecloy Lobo
3
Affiliations
1 Annamalai University, Annamalai Nagar, Chidambaram - 608002, Tamil Nadu, IN
2 Department of EEE, SRM University, Kattankulathur, Chennai - 603203, Tamil Nadu, IN
3 Bin Salim Enterprises, Sultanate of Oman, OM
1 Annamalai University, Annamalai Nagar, Chidambaram - 608002, Tamil Nadu, IN
2 Department of EEE, SRM University, Kattankulathur, Chennai - 603203, Tamil Nadu, IN
3 Bin Salim Enterprises, Sultanate of Oman, OM
Source
Indian Journal of Science and Technology, Vol 9, No 38 (2016), Pagination:Abstract
Background / Objectives: This paper narrates a novel strategy employing fuzzy logic for voltage profile enhancement and loss minimization in power systems. Linearized model is utilized and limit violations of control variables translated into fuzzy set notation. Methods/Statistical Analysis: The method adopted here for the voltage profile enhancement consists of certain number of load buses with definite VAR compensation schemes. In this work, it is mainly aimed to enhance the system voltage profile and thereby reducing power losses in it. Here, the linearization of objective functions and constraints is done about the current operating point. Findings: The equality and inequality constraints include dependent and independent variables. Later, power flow studies are used to calculate the limit violations of bus voltage magnitude and thereby a viable solution set that aims for voltage profile improvement as well as power loss reduction is finally obtained using appropriate operations of the fuzzy sets. In order to demonstrate the efficacy of this approach, IEEE 14 –bus test system is implemented. Application/Improvement: Due to the application of fuzzy logic, the control of variables in the problem is global and it involves less computational time and the results can have more accuracy.Keywords
Fuzzy-based Strategy, Fuzzification and Membership Functions, Linearized Model, Reactive Power Scheduling, Voltage Profile Enhancement.Full Text
- An Enhanced Detection of White Matter Lesions in MRI Brain Images
Abstract Views :157 |
PDF Views:4
Authors
Affiliations
1 Pollachi Institute of Engineering and Technology, Poosaripatti, IN
2 Pollachi Institute of Engineering and Technology, Poosaripatti, IN
1 Pollachi Institute of Engineering and Technology, Poosaripatti, IN
2 Pollachi Institute of Engineering and Technology, Poosaripatti, IN
Source
Biometrics and Bioinformatics, Vol 9, No 3 (2017), Pagination: 61-64Abstract
White Matter Lesions are small areas of dead cells found in the parts of the brain. In general it is difficult for medical experts accurately quantify the WMLs due to decreased contrast between White Matter (WM) and Grey Matter (GM) in MRI brain images. The main aim is to detect the White Matter Lesions present in MRI brain images which may result in memory loss or even death. This can be done by Fuzzy C-means Clustering (FCM) algorithm which is less sensitive to noise present at output and it detects false lesions also. To overcome this and to make detection more accurate Particle Swarm Optimization algorithm is used. PSO yields high sensitivity, specificity and overall accuracy over FCM.
- Drowsiness Detection Using Artificial Neural Network
Abstract Views :167 |
PDF Views:1
Authors
Affiliations
1 Department of Electronics and Communication Engineering, Sri Eshwar College of Engineering, Coimbatore, IN
1 Department of Electronics and Communication Engineering, Sri Eshwar College of Engineering, Coimbatore, IN
Source
Artificial Intelligent Systems and Machine Learning, Vol 12, No 5 (2020), Pagination: 99-103Abstract
When a driver doesn’t get proper rest, they fall asleep while driving and this leads to fatal accidents. This particular issue demands a solution in the form of a system that is capable of detecting drowsiness and to take necessary actions to avoid accidents.
The detection is achieved with three main steps, it begins with face detection and facial feature detection using the famous Viola Jones algorithm followed by eye tracking. By the use of correlation coefficient template matching, the eyes are tracked. Whether the driver is awake or asleep is identified by matching the extracted eye image with the externally fed template (open eyes and closed eyes) based on eyes opening and eyes closing, blinking is recognized. If the driver falling asleep state remains above a specific time (the threshold time) the vehicles stops and an alarm is activated by the use of a specific microcontroller, in this prototype an Arduino is used.