No abstract

The ability of ideal MIMO channels has a high-SNR slope that equals the minimum of the number of transceiver antennas. This work evaluates if this result holds when there are distortions from physical transceiver limitations. We prove analytically that such physical MIMO/SISO channels have a finite upper capacity limit, for any channel distribution and SNR. The high-SNR slope thus collapses to zero. This appears discouraging, but we prove the encouraging result that the relative capacity gain of employing MIMO/SISO is at least as large as with ideal transceivers. The entire results will be shown in MATLAB platform effectively.

23 million people are affected by heart failure in the world. Even with the best promotional methods there is a shortage of donor hearts globally. Advances in technology with development of fully implantable, durable, devices for mechanical support have strengthened the necessity of use of these devices for destination therapy. As better and novel prototypes emerge, the requirement of surgical innovations is a necessity for quick and safe implantation and explantation procedures in emergency. Use of augmented and virtual reality platforms for device patient match as well as surgical training is being looked into a serious option for such procedures in future.

Introduction: Tuberculosis (TB) represents a global epidemic and causes significant mortality mostly in developing countries. With the emergence of HIV pandemic the steady decline in the incidence of tuberculosis was halted in developed countries and in fact it is reversed. Similarly an epidemic of diabetes mellitus is sweeping the country. Aims and Objectives: Isolation of Mycobacterium tuberculosis on solid media from different groups like HIV/AIDS patients, Diabetics, immunocompetent persons and to study the isolation rates in smear negative suspected cases. Materials and Methods: This study was performed on sputum of tuberculosis suspected patients from different risk groups. All the specimens were examined microscopically by using Ziehl-Neelsen's staining and decontamination was performed using Modified Petroffs technique. The decontaminated deposit was cultured on LJ slopes. Results: Out of a total of 50 HIV positive cases, 25 diabetic cases and 25 immunocompetent persons with suspected tuberculosis 44%, 8% and 68% were found to be co-infected with tuberculosis. Out of total of 100 cases of symptomatic pulmonary tuberculosis, 34 (34%) were sputum positive and 66 (66%) were sputum negative. Maximum no. of sputum positive cases are among symptomatic immunocompetent persons (60%) followed by HIV positive cases (34%) and Diabetics (8%). All the strains isolated were identified as Mycobacterium tuberculosis and no non-tuberculous mycobacteria spp (NTM) were isolated. Conclusion: Conventional culture technique is the gold standard for diagnosis of pulmonary tuberculosis. Priority for tuberculosis control remains early detection and effective treatment of active cases of tuberculosis.

The aim of the investigation is to determine the CI engine performance and emission characteristics of methyl ester mango seed biodiesel fueled and zirconia thermal barrier coated single cylinder four stroke diesel engine. The piston, piston head, inlet, and outlet valves were coated with zirconia thermal barrier coating material.The engine was operated for different injection pressures for B00, B30, TBC+B00 and TBC+B30 biodiesels. The experiments were conducted on water cooled diesel engine to determine the indicated pressure, brake thermal efficiency, specific fuel consumption and emission characteristics. The result indicates that the brake thermal efficiency of the biodiesel was slightly lower than the brake thermal efficiency of diesel fueled engine. The brake thermal efficiency of coated condition is higher than the uncoated condition. The specific fuel consumption of biodiesel was more compared to diesel and specific fuel consumption for coated condition is lower than the uncoated condition. The emission charecteristics were lower for coated condition than the uncoated condition.