Aging Services

This history for the Aging Services Management program was written to commemorate DMACC\u27s 50th anniversary celebration during the 2015-16 academic year

MCSA based mechanical fault analysis of three phase squirrel cage induction motor

This paper deals with mechanical fault analysis of three phase induction motor using Motor Current Signature Analysis. This is a reliable technique that can be used to monitor the health of three phase induction motor. Three phase induction motor is used to find the Current Signature before and after the fault occurs. The FFT of Current signal is analyzed using Advanced Signal processor to find harmonics present before and after the fault occur. This data is used to detect the mechanical faults way before they cause harm to the motor and power system. Ball bearing fault is created practically to find the harmonics components in the current drawn. Most of the practical results match with the theoretical values obtained from the literature

Influence of Constant Stresses on Transverse Surface Waves Between Two Elastic Media

The influence of constant stresses on velocities of propagation of transverse surface wave between two elastic media is studied, assuming the constraints at contact surfac

Improving recognition accuracy on CVSD speech under mismatched conditions

Emerging technology in mobile communications is seeing increasingly high acceptance as a preferred choice for last-mile communication. There have been a wide range of techniques to achieve signal compression to suit to the smaller bandwidths available on mobile communication channels; but speech recognition methods have seen success mostly only in controlled speech environments. However, designing of speech recognition systems for mobile communications is crucial in order to provide voice enabled command and control and for applications like Mobile Voice Commerce. Continuously Variable Slope Delta (CVSD) modulation, a technique for low bitrate coding of speech, has been in use particularly in military wireless environments for over 30 years, and is now also adopted by BlueTooth. CVSD is particularly suitable for Internet and mobile environments due to its robustness against transmission errors, and simplicity of implementation and the absence of a need for synchronization. In this paper, we study some characteristics of the CVSD speech in the context of robust recognition of compressed speech, and present two methods of improving the recognition accuracy in Automatic Speech Recognition (ASR) systems. We study the characteristics of the features extracted for ASR and how they relate to the corresponding features computed from Pulse Coded Modulation (PCM) speech and apply this relation to correct the CVSD features to improve recognition accuracy. Secondly we show that the ASR done on bit-streams directly, gives a good recognition accuracy and when combined with our approach gives a better accuracy

Study the usefulness of cartridge based NUCLEIC acid amplification test in bronchoalveolar lavage samples in the diagnosis of smear-negative/non sputum producing patients with suspected tuberculosis

Background: The aim of study is to evaluate the diagnostic value of the CBNAAT in BAL samples of smear negative for AFB or who could not produce an expectorated sputum sample.Methods: A prospective and observational study of in patient and out patient department in Department of Pulmonary Medicine of Chalmeda Anand Rao Institute of Medical Sciences, Karimnagar during the period November 2017 to November 2018.Results: Bronchoalveolar lavage cartridge based nucleic acid amplification test in bronchoalveolar lavage was done for 60 samples of patients who were having history and chest x-ray suggestive of pulmonary tuberculosis with sputum AFB negative. Out of these sputum negative samples 25 were BAL CBNAAT positive and rest were negative.Conclusions: CBNAAT adds significantly to the diagnostic yield of PTB in comparison to sputum smear microscopy. It has additional advantage of identifying rifampicin resistance with high sensitivity and specificity

Bone marrow concentrate efficacy in treatment of chronic aseptic nonunion

Background: Bone marrow is a rich source of osteoprogenitor cells that proliferate and differentiate into osteoblasts. Traditionally, autologous iliac bone grafts have been used in treatment of nonunion. This technique has its associated morbidity, which include donor site pain, infection, scarring, and nerve injury. The use of percutaneous bone marrow stem cells (BMSC) avoids these morbidities with comparable clinical results.Methods: We studied twenty patients of aseptic nonunion where bone marrow was aspirated from the anterior iliac crest, concentrated on a cell separator, and then injected into the nonunion site under c-arm guidance. Each nonunion received a relatively same amount of concentrated bone marrow. The volume of callus was calculated by dimensions obtained from RISPACS software in our institution.Results: There was an average of 29,418 mm3 of callus formation with a minimum of 4,455 mm3 and maximum of 68,460. The average time of union was 12 weeks with minimum of 6 weeks and maximum of 24 weeks.Conclusions: The percutaneous bone marrow concentrate injection provides an effective and a safe alternative method for the treatment of a chronic long standing non-union