Image processing techniques to identify predatory birds in aquacultural settings

Bird predation is a major problem in aquaculture. A novel method for dispersing birds is the use of a vehicle that can sense and chase birds. Image recognition software can improve their efficiency in chasing birds. Three recognition techniques were tested to identify birds 1) image morphology 2) artificial neural networks, and 3) template matching have been tested. A study was conducted on three species of birds 1) pelicans, 2) egrets, and 3) cormorants. Images were divided into 3 types 1) Type 1, 2) Type 2, and 3) Type 3 depending upon difficulty to separate from the others in the images. These types were clear, medium clear and unclear respectively. Image morphology resulted in 57.1% to 97.7%, 73.0% to 100%, and 46.1% to 95.5% correct classification rates (CCR) respectively on images of pelicans, cormorants and egrets before size thresholding. The artificial neural network model achieved 100% CCR while testing type 1 images and its classification success ranged from 63.5% to 70.0%, and 57.1% to 67.7% while testing type 2 and type 3 images respectively. The template matching algorithm succeeded in classifying 90%, 80%, and 60% of Type 1, Type 2 and Type 3 images of pelicans and egrets. This technique recognized 80%, 91.7%, and 80% of Type 1, Type 2, and Type 3 images of cormorants. We developed a real time recognition algorithm that could capture images from a camera, process them, and send output to the autonomous boat in regular intervals of time. Future research will focus on testing the recognition algorithms in natural or aquacultural settings on autonomous boats

Work motivation of teachers : relationship with transformational and transactional leadership behavior of college principals

The strength of an educational system largely depends upon the quality of its teachers. It is a teacher who helps to transform an individual into a person of imagination, wisdom, human love and enlightenment, and institutions into lampposts of posterity, and the country into a learning society. The National Policy on Education (1986) has rightly remarked “The status of the teacher reflects the sociocultural ethos of a society; It is in this context that today a teacher occupies a unique and significant place in any society

On hydromagnetic flow due to a rotating disk with radiation effects

The effect of thermal radiation on the steady laminar convective hydromagnetic flow of a viscous and electrically conducting fluid due to a rotating disk of infinite extend is studied. The fluid is subjected to an external uniform magnetic field perpendicular to the plane of the disk. The governing Navier–Stokes and Maxwell equations of the hydromagnetic fluid, together with the energy equation, are transformed into nonlinear ordinary differential equations by using the von Karman similarity transformations. The resulting nonlinear ordinary differential equations are then solved numerically subject to the transformed boundary conditions by Runge–Kutta based shooting method. Comparisons with previously published works are performed and the results are found to be in excellent agreement. Numerical and graphical results for the velocity and temperature profiles as well as the skin friction and Nusselt number are presented and discussed for various parametric conditions

Quality Assurance in Education through Quality Circles – Global and Indian Context

Since Independence, the education, particularly the higher education in India has undergone a unique transformation from elitist to egalitarian group. There has been the expansion of higher education facilities in India since independence. We can see the expansion of higher education with increasing speed day by day in the context of globalization, liberalization and privatization. But a big question in front of us is whether the quality is ensured or not. It is saddening to note that 128 universities who got themselves accredited by the NAAC only 32 per cent could get ‘A’ or above level of rating while another 52 per cent of them could manage with ‘B’ or above grade. The remaining 16 per cent fall in grade ‘C’ or above. NAAC assessment further indicates that 68% of colleges are rated as ‘B’ while another 23% colleges is rated as ‘C’ grade; and only the remaining 9% are ‘A’ grade. Thus the quality assurance in higher education is the need of the hour

Posterior reversible encephalopathy syndrome in preeclampsia

Background: Posterior reversible encephalopathy is a clinico-radiological syndrome marked by headache, altered mental status, seizures, visual disturbances, and extensive white-matter changes, also known as hyper perfusion encephalopathy, brain capillary leak syndrome, and hypertensive encephalopathy. This syndrome was a possible consequence of several medical conditions but especially in pregnancy it is associated with pre-eclampsia and eclampsia. Objective of this study was to know the incidence and analyze the clinical features, biochemical, and radiological abnormalities in posterior reversible encephalopathy syndrome (PRES) as a complication of preeclampsia.Methods: This was a one-year cross-sectional analytical study conducted at NRI general hospital, Chinakakani, Guntur of patients with the diagnosis of PRES. Data was obtained from medical records and analyzed them in terms of mean for continuous variables and percentages for categorical data.Results: Total no of patients diagnosed as PRES were 16 out of 127 patients of preeclampsia. Among them, 14 presented with eclampsia, and two presented with severe preeclampsia and imminent symptoms of eclampsia. Headache was the most common symptom (100%). PRES occurred at a peak SBP of ≥160 mmHg in 75% cases and peak DBP of ≥110 mmHg in 50% cases. Serum lactate dehydrogenase (LDH) level was ≥600 in 56.25% and serum uric acid level ≥6 in 50% of patients of PRES. The drug of choice was magnesium sulfate.Conclusions: Neuroimaging abnormality is a definitive component in the diagnosis of PRES. These cerebral abnormalities are vital components in the pathogenesis of eclampsia. Considerable number of patients of preeclampsia might develop PRES even without eclampsia, with mild elevation in BP, serum LDH, and serum uric acid levels

Conjunction Weighted Average Method with Fuzzy Expert System for Weather Event Forecasting – A Monthly Outlook

Fuzzy logic as a limiting case of approximate reasoning is viewed in exact reasoning, consider everything in a matter of degree. A collection of elastic or equivalently interpreted to knowledge, a collection of variables in fuzzy constraint. Inference is process as a propagation of elastic constraints. Every logical system is fuzzified in fuzzy logic. Fuzzy logic is fascinating area of research, it trading off between significance and precision. It is convenient way to map space of input to a space of output. Fuzzy logic as so far as the laws of Mathematics refers to reality, they are not certain and so far, as they are certain as complexity rises, precise statements lose meaning and meaningful statements lose precision. Most meteorological infrastructure is surprisingly versatile. For example, the same radar system that can detect oncoming storms will also be useful for gathering general rainfall data for the farming sector. Being able to predict and forecast the weather also allows for data to be gathered to build up a more detailed picture of a nation’s climate, and trends within i

Analysis of shoreline changes in the severe storm surge region of upper Coromandel coast, India, using Remote sensing (RS) and Geographic information system (GIS)

Coastlines have been subject to ongoing vulnerability from natural disasters, resulting in erosion and accretion occurring at varying intervals. The impacts of human activities and alterations in natural processes, including those induced by climate change, exacerbate the existing challenges faced along coastal regions. The present study aimed to analyze the changing shoreline along the Bapatla coastal tract in the upper coromandel coast of Andhra Pradesh due to erosion and accretion using the DSAS toolbar in ArcGIS software. Multiple statistical methods are available in DSAS; the present study confined  attention to the end point rate (EPR), linear regression rate (LRR), and net shoreline movement (NSM) for this investigation. The Nizampatnam Mandal had the greatest erosion rate (-16.8 m/yr) and accretion rate (10.5 m/yr), according to EPR, as well as the highest erosion rate (-16.7 m/yr) and accretion rate (10.4 m/yr) according to LRR. As per NSM, between 1990 and 2020, the highest erosion and accretion was seen again in Nizampatnam. The shoreline at Nizampatnam either retreated by as much as -285.2 meters or advanced by 211.1 meters. The research indicated that the Bapatla district's shoreline is susceptible to erosion and accretion.   The present investigation revealed that the coastal region of Bapatla district exhibits susceptibility to both erosion and accretion phenomena. The findings of the present study hold significant implications for professionals in the fields of coastal science, engineering, and administration. The findings are of utmost importance in the development of sustainable approaches for coastal management. 

Managing Sports State Anxiety with Yoga among Athletes – A Probe into Facts

The Purpose of the study was to find out, the intervened effect of yoga on State Anxiety among the peak performers of athletics. The subjects chosen for the study were 30 athletes of different genres from University of Madras, Chennai. Their age ranged between 20 and 25 years. They were randomly divided into two groups of 15 each, one being the experimental group and the other a control group. The experimental group underwent a scheduled yoga practice for a period of 8 weeks, 6 days/week as the control group was on daily regular routine. The status of State Anxiety was measured before (Pre-test) and after (Post-test) the experimental period using Manual of Statetrait Inventory developed by Spielberger (1970). The data were analyzed statistically for significant differences. Later applying analysis of variance and analysis of co-variance (in case of insignificance), significance in variance is shown, and further Scheffe?s test was applied. The result proves that the yogic scheduled practices have made a significant impact on the State Anxiety of the experimental group compared to the control group