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Search Results: 1 - 10 of 145053 matches for " Ganesh B. Nawsupe "
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Automatic detection of pulse morphology patterns & cardiac risks  [PDF]
Rajani R. Joshi, Ganesh B. Nawsupe, Smita P. Wangikar
Journal of Biomedical Science and Engineering (JBiSE) , 2012, DOI: 10.4236/jbise.2012.56041
Abstract: Analysis of arterial pulse waveforms is important for non-invasive diagnosis of cardiovascular functions. Large samples of IPG signal records of radial arterial pulse show presence of eight different types of shapes (morphological patterns) in the pulse waveforms. In this paper we present an efficient computational method for automatic identification of these morphological patterns. Our algorithm uses likelihood ratio of cumulative periodogram of pulse signals and some geometrical criteria. The algorithm is presented with necessary details on signal processing aspects. Results for a large sample of pulse records of adult Indian subjects show high accuracy of our algorithm in detecting pulse-morphology patterns. Variation of pulse-morphology with respect to time is also analyzed using this algorithm. We have identified some characteristic features of pulse-morphology variation in patients of certain cardiac problems, hypertension, and diabetes. These are found relevant and significant in terms of physiological interpretation of the associated shapes of pulse waveforms. Importance of these findings is highlighted along with discussion on overall scope of our study in automatic analysis of heart rate variability and in other applications for non-invasive prognosis/diagnosis.
In Silico Mining of EST-SSRs in Jatropha curcas L. towards Assessing Genetic Polymorphism and Marker Development for Selection of High Oil Yielding Clones  [PDF]
Neeraj Jain, Ganesh B. Patil, Poonam Bhargava, Rajani S. Nadgauda
American Journal of Plant Sciences (AJPS) , 2014, DOI: 10.4236/ajps.2014.511167
Abstract:



In recent years, Jatropha curcas L. has gained popularity as a potential biodiesel plant. The varying oil content, reported between accessions belonging to different agroclimatic zones, has necessitated the assessment of the existing genetic variability to generate reliable molecular markers for selection of high oil yielding variety. EST derived SSR markers are more useful than genomic markers as they represent the transcriptome, thus, directly linked to functional genes. The present report describes the in silico mining of the microsatellites (SSRs) using J. curcas ESTs from various tissues viz. embryo, root, leaf and seed available in the public domain of NCBI. A total of 13,513 ESTs were downloaded. From these ESTs, 7552 unigenes were obtained and 395 SSRs were generated from 377 SSR-ESTs. These EST-SSRs can be used as potential microsatellite markers for diversity analysis, MAS etc. Since the Jatropha genes carrying SSRs have been identified in this study, thus, EST-SSRs directly linked to genes will be useful for developing trait linked markers.



Effect of Surface Treatment on Tribological Behavior of Ti-6Al-4V Implant Alloy  [PDF]
B. K. C. Ganesh, N. Ramanaiah, P. V. Chandrasekhar Rao
Journal of Minerals and Materials Characterization and Engineering (JMMCE) , 2012, DOI: 10.4236/jmmce.2012.117061
Abstract: Titanium alloys are extensively used in various fields of engineering, medicine, aerospace, marine due to its excellent mechanical properties. Its usage is more pronounced today in the field of biomedical implants due to its superior bio-compatibility, corrosive resistance and high strength to weight ratio. It has poor abrasive wear resistance due to high coefficient of friction and low thermal conductivity. Poor abrasive wear resistance results in the formation of wear debris at the implant area causing toxicity, inflammation and pain .Surface treatment of the implant alloy through heat treatment, application of protective coatings, introduction of compressive residual stresses by shotpeening and shot blasting are some of the methods to mitigate wear of the implant alloy. In this work Ti-6Al-4V implant alloy is treated under various conditions of heat treatment, shotpeening and shot blasting operations on a pin on disc wear testing machine. Shotpeening and Shot blasting are the operations usually performed on this alloy to improve fatigue strength and surface roughness. In this work the effect of above surface treatments were studied on the wear behavior of Ti-6Al-4V implant alloy and an improvement in the wear resistance of the alloy is reported. Scanning Electron micrograph (SEM) along with Energy Dispersive Spectrometry analysis (EDS) is done to authenticate the experimental results obtained during the wear testing procedure.
Interacting scalar fields in de Sitter space
Ganesh Devaraj,Martin B. Einhorn
Physics , 1995,
Abstract: We investigate the massless $\lambda \phi^4$ theory in de~Sitter space. It is unnatural to assume a minimally coupled interacting scalar field, since $\xi=0$ is not a fixed point of the renormalization group once interactions are included. In fact, the only case where perturbation theory can be trusted is when the field is non-minimally coupled at the minimum of the effective potential. Thus, in perturbation theory, there is no infrared divergence associated with this scalar field.
Left-Right Asymetry From Supersymmetry in Polarized M?ller Scattering
Ganesh Devaraj,Martin B. Einhorn
Physics , 1995,
Abstract: We calculate the leading contribution to the left-right asymmetry in polarized M{\o}ller scattering from the superpartners in the Minimal Supersymmetric Standard Model (MSSM), using an effective lagrangian approach. We determine the maximum asymmetry that can result from the superpartners in the MSSM under different scenarios, and discuss the feasibility of a high-precision, low-energy ($\sqrt{s}\approx 200~{\rm MeV}$) M{\o}ller scattering experiment to see supersymmetry.
Conversion of Carbon Dioxide to Methanol Using Solar Energy - A Brief Review  [PDF]
Ibram Ganesh
Materials Sciences and Applications (MSA) , 2011, DOI: 10.4236/msa.2011.210190
Abstract: This article presents a meticulous and comprehensive review of literature reported on conversion of carbon dioxide, a green house gas into methanol or to any other value added chemical following various routes including catalytic, thermal, biological, electrochemical and photoelectrochemical (PEC). More emphasis is given on conversion of carbon dioxide to methanol using solar energy (i.e., artificial photosynthesis) as this process can tackle the human generated two pressing problems, i.e., “global warming” and “energy crisis” today world is facing. It also covers information on various materials required for designing and development of reliable PEC cells for conversion of carbon dioxide to more value added chemicals including methanol. Finally, it also provides the scope for the future research on this topic with adequate literature support.
The Design of Circular Microstrip Patch Antenna by Using Quasi-Newton Algorithm of ANN  [PDF]
Abhilasha Mishra, Ganesh B. Janvale, Bhausaheb Vyankatrao Pawar, Pradeep Mitharam Patil
Journal of Electromagnetic Analysis and Applications (JEMAA) , 2010, DOI: 10.4236/jemaa.2010.27058
Abstract: The paper presents the Quasi Newton model of Artificial Neural Network for design of circular microstrip antenna (MSA). In this model, a closed form expression is used for accurate determination of the resonant frequency of circular microstrip patch antenna. The calculated resonant frequency results are in good agreement with the experimental results reported elsewhere. The results show better agreement with the trained and tested data of ANN models. The results are verified by the experimental results to produce accurate ANN models. This presents ANN model practically as an alternative method to the detailed electromagnetic design of circular microstrip antenna.
Analytical modeling of cutting forces of end milling operation on aluminum silicon carbide particulate metal matrix composite material using response surface methodology
B. Ganesh babu,V. Selladurai,R. Shanmugam
Journal of Engineering and Applied Sciences , 2008,
Abstract: The cutting forces exerted by the cutting tool on the work piece during a machining action to be identified in order to control the tool wear and occurrence of vibration, thus to improve tool-life. Modeling of cutting force in milling is often needed in machining automation. The objective of this study is to predict the effects of cutting parameters on the variations of cutting forces during end milling operation of Al SiC metal matrix composite material. Cutting forces are measured for varies feed rates. In this study Response Surface Methodology is used by designing four factors, five level central composite rotatable design matrixes with full replication; for planning, conduction, execution and development of mathematical models. The average cutting forces are determined at different feed rates in tangential, radial, and axial directions per tooth period by keeping immersion and axial depth of cut as constant. A comparison between modeling and experiment is presented. This model and analysis are useful not only for predicting the tool wear but also for selecting optimum process parameters for achieving the stability of the end milling process.
An Automated Beam Extraction System for Microtron
Khan A,Sheikh Mohammad,Ganesh,Hanumaiah B
IETE Technical Review , 2008,
Abstract: In this paper we report on a computer based system developed for the automated control of the Beam Extraction System (BES) of Microtron (electron accelerator facility at Mangalore University). The BES helps in extracting the electron beam from a desired orbit. The automated system is designed with two levels. At the system level, there is a microcontroller along with some circuit components to place the mouth of the extraction channel at a particular orbit so that an electron beam of a particular energy can be extracted from the microtron for experimental studies. The computer kept in the control room away from the microtron machine (i.e. user level) passes the orbit number from which the beam is to be extracted to the microcontroller. This automated system is very simple, easy to operate and cost effective. It also helps in accurate setting of extraction channel and extraction of electron beam of desired energy. The work described here is an attempt to improvise on the existing system and computerise the same for accurate settings and control from a remote distance.
Isolated tuberculous epididymitis: A review of forty cases
Viswaroop B,Kekre N,Gopalakrishnan Ganesh
Journal of Postgraduate Medicine , 2005,
Abstract: Background: Tuberculous epididymitis is one of the causes of chronic epididymal lesions. It is difficult to diagnose in the absence of renal involvement. Aim : To profile isolated tuberculous epididymitis and to assess our approach in the evaluation of this group of patients. Setting and Design : Retrospective study done at Christian Medical College, Vellore, South India. Methods and Materials : Between 1992 and 2002, 156 fine needle aspiration cytology specimens and 108 epididymal biopsies were carried out in 187 men for evaluation of chronic epididymal nodules. Isolated epididymal tuberculosis was defined as "tuberculous infection affecting the epididymis without evidence of renal involvement as documented by the absence of acid fast bacilli in the urine sample and on imaging". The age, laterality, mode of presentation and method of histological diagnosis were studied with the objective of profiling isolated tuberculous epididymitis. Results : Fifty-four of the 187 men (median age 32 years; interquartile range: 21-37 years) had tuberculous epididymitis. Fourteen were excluded from the analysis (10 had associated urinary tract tuberculosis and 4 were lost to follow-up). None of the 40 men with isolated tuberculous epididymitis had urinary symptoms. Bilateral involvement was seen in five (12.5%) cases. The salient presenting features included painful swelling (16 subjects, 40%), scrotal sinus (4, 20%) and acute epididymitis (2, 10%). Past history or concomitant presence of tuberculosis was noted in three subjects each. Anti TB treatment resulted in a complete response in 10 and partial response in 18. Five subjects underwent epididymectomy. Tuberculous epididymitis was found incidentally in 5 (10%) cases on high orchiectomy specimen done for suspected testicular tumour. Conclusions : Tuberculous epididymitis can be the sole presentation of genitourinary tuberculosis.
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