Informatics Publishing Limited

S. Jagadeesh , M. N. Subhash

Abstract

Development pattern of 3H-Spiperone binding to 5-HT₂ receptors was studied in cerebral cortex of new born, 45 days, 3 month, 8 month and 18 month old ¼rats. Regional distribution of 3H-Spiperone binding revealed maximal density of 5-HT₂ sites in hippocampus (B max 543.33 ± 17.97 f moles/mg protein), followed by cerebral cortex (B max = 392.72 ± 41.10 f moles/mg protein), cerebellum (B max = 272.00 ± 22.75 f moles/mg protein) and brain stem (B max = 162.00 ± 10.44 f moles/mg of protein). In these regions the Hill coefficient value was 0.98 suggesting that 3H-Spiperone binds to one class of non-interacting sites. Developmental pattern of 5-HT₂ sites in rat cerebral cortex revealed that there was a gradual increase in 5-HT₂ density during postnatal development. The maximum density of the 5-HT₂ receptors (B max-392.72 ± 17.97 f moles/mg protein) was observed in three month old rats, which was 3 fold more than new born rats (B max-125.17 ± 57.00 f moles/mg protein). During the course of aging there was, however, a gradual decline in the density of 5-HT₂ sites. The affinity of 3H-Spiperone to 5-HT₂ sites (Kd), which did not change with age, was high in brain stem and cerebellum than in cortex and hippocampus.

Keywords

Receptors, H Spiperone, Rat Brain, Regions, Development

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S. Jagadeesh ¹, E. Nagabhooshanam ²

Affiliations
1 Electronics and Communications Engineering Department, SSJ Engineering College, Hyderabad-500075, Telangana,, IN
2 Electronics and Communications Engineering Department, CMR Engineering College, Hyderabad – 501401, Telangana, Hyderabad,, IN

Abstract

Objectives: To achieve high compression rate by reducing the more redundant information in medical images. More compression rate results in less resource utilization and also reduces the processing overhead and time consumption. Methods/Statistical Analysis: In this approach, initially the medical image was decomposed through multiwavelet transform. Then a band selection procedure is performed on the obtained sub bands to select the bands which are noncorrelated. Thus, the redundant information existing in the bands will be reduced. Then, the selected bands were processed for energy based interpolation to select the features which are more informative and also to reduce the redundant information further. Next, the hierarchical coding was applied over the obtained features. Findings: Simulation results are carried out over various medical images and for every image, the quality was checked through PSNR and the performance was checked through processing overhead and computation time (sec). Compared with earlier approaches, the processing overhead of proposed approach observed to be less and the computation time also. Similar, the PSNR is observed to be high and MSE as low. Applications/Improvements: The proposed medical image coding system will be used in telemedicine applications where there is a need of efficient resource utilization to transmit the data with fewer resources.

Keywords

Band Selection, Computation Time, Energy Interpolated Features, Hierarchical Coding, Medical Image Compression, , PSNR, Processing Overhead,

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S. Jagadeesh ¹, S. Kumanan ¹

Affiliations
1 Department of Production Engineering, National Institute of Technology, Tiruchirappalli, IN

Abstract

Cladding is process of coating of low alloy base with high alloy overlay to safeguard the base metal from corrosive fluids and fumes. Conventional ultrasonic testing is used to detect flaws in cladding and to enhance the quality of the product during the manufacturing stage. When the component is put to operation, miniscule flaws could propagate due to high working temperatures and pressures thereby reducing the service life of the product. Process plants and nuclear power plants undergo periodic in-service inspection to verify the integrity of components using NDE technique. Conventional ultrasonic testing is limited in application and Phased array ultrasonic testing (PAUT) as an advanced NDE technique could be a viable alternative. This paper details about the application of PAUT to detect a variety of bonding layer flaws in in-service inspection of cladded components.

Keywords

Cladding, NDE, UT, PAUT.

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K. Lenin Babu ¹, S. Jagadeesh ¹

Affiliations
1 Karnataka State Natural Disaster Monitoring Center, Major Sandeep Unikrishnan Road, Yelahanka, Bengaluru 560 064, IN

Abstract

Compelled by the growing economy, India is extracting resources @ 1580 tonnes/acre, much higher than the world average of 450 tonnes/acre with a low recycling rate at 25% only. Together, economy and consumption patterns are expected to double the demand for materials from the current 7 billion tonnes by 2030, leading to several ecological and economic backlashes. To prevent such a situation, the Government of India has proposed a draft Resource Efficiency Policy and sought suggestions from stakeholders. This contribution aims for a wider dissemination of information about the Draft Policy and also suggestions by the authors for effective implementation of proposed policy.

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