THE CAMPUS SECURITY TRACKING SYSTEM BASED ON RFID AND ZIGBEE NETWORK

This paper contains the campus security tracking system (CST) has been designed and implemented using the RFID and ZigBee network. The CST reads the RFID tags data through FRID & ZigBee node, and then sends it to PC node by a custom wireless protocol on the ZigBee. PC node gives related warning (or) hints by the result of matching master slave RFID tag information. When the warning occurs, its user can logon the web system to get the real-time tracking for valuables with embedded slave RFID where the thief arrives at any one access control node, it would be blocked. User can also manage his own valuables such as lending and recovery operation through the Web manager center. The system can achieve large-scale logistics management and tracking, and has good market prospects and value in use

AN EXPERIMENTAL STUDY OF APPLYING VARIOUS CUTTING EDGES ON WIPER MILLING INSERTS IN FACE MILLING AISI 1070 STEEL

In metal cutting industry, edge preparation on carbide inserts have a significant effect on the productivity of a machine. In this study, the effect of various cutting edge preparations on wiper facet which influences various force components and surface finish in the rough milling operation of AISI 1070 steel were experimentally investigated. Tungsten Carbide inserts with three distinct edge preparations and AISI 1070 steel blocks were used. Three-factor (Cutting speed, Feed and Geometry), three-level full factorial design experiments were conducted under dry conditions. During the rough milling operation, three components of forces and surface finish of the machined surface were measured. This study shows that the effect of various edge geometries is more significant on surface finish and has very little impact on the force components

Laboratory evaluation of bleeding diathesis in medical ICU patients.

INTRODUCTION: Bleeding diathesis is a very common occurrence in critically ill patients. The cause is usually multifactorial. AIMS and OBJECTIVES: To study about the incidence and the type of bleeding diathesis occurring in critically ill patients in the medical ICU. To analyse and tabulate the common aetiologies of coagulopathy occurring in medical ICU patients. MATERIALS and METHODS: 50 patients admitted in medical ICU were selected irrespective of the presence of clinical bleeding and patient underwent the questionnaire and the following investigations namely prothrombin time (PT), activated partial thromboplastin time (aPTT), Platelet count, D dimer and Fibrinogen. 1 Post graduate in Internal Medicine, Institute of Internal Medicine, RGGGH 2 Professor of Medicine, Institute of Internal Medicine, RGGGH 3 Professor of Hematology, Dept of Hematology, RGGGH RESULTS: Out of 50 patients 26 patients had coagulation abnormality. Any drop in platelet count or prolongation of PT, a PTT was considered coagulation abnormality. 23 patients out of 50 had thrombocytopenia with majority of patients having drop between 80,000 and 1 lakh cells per cu.mm. 3 patients had prolonged PT and 10 patients had prolonged aPTT. 1 Patient had DIC who was found to have thrombocytopenia, prolonged PT and aPTT. Sepsis was found to be the commonest etiology of coagulopathy and thrombocytopenia was the commonest coagulation abnormality in our study. Renal failure, liver failure and antithrombotic drugs were the other major causes. CONCLUSION: A rationale approach must be developed in treating critical care patients with abnormal coagulation. Too much aggressive transfusions can do more harm than good. A good clinical judgement along with updated knowledge is required to treat such patients

A Prospective study of Various CNS Manifestations Associated with HIV/AIDS and to study a relationship between it and CD4 counts

BACKGROUND : AIDS is a disease caused by human immunodeficiency virus and featured by immunosuppression leading on to opportunistic infection secondary neoplasm’s and neurological manifestations. According to WHO HIV is a pandemic. The mortality due to opportunistic infection is more. The opportunistic infection occurred when there was a decrease of cd4 counts. METHODS : A prospective study was conducted in Thanjavur medical college thanjavur with an objective to determine the various CNS manifestations associated with HIV and its relation with the CD4 counts. All the seropositive aged more than 14 yrs with CNS manifestations where included in the study. Clinical examinations, CT, MRI, serology, CSF analysis were done and diseases where diagnosed based on respective criteria’s. CD4 counts where done and co related with the diagnosis. A total of 40 cases were studied. RESULTS : The infection was common among males. The people aged between 30-39 where affected the most. Tuberculosis was the most common infection. Toxoplasma and tuberculoma presented with focal neurological signs. One case of progressive multifocal keukoencephalopathy was observed, he presented with seizures. Seizure was also seen with toxoplamosis and neurocysticercoisis. Most of qall the cases had headache as the commonest symptom. CNS TB had mean CD4 count of 217, cyptococcal meningitis had a mean count of 130, toxoplasmosis with a mean count of 104, PML with 286.Two cases of stoke were observed and it was attributed to direct virus infection and they had a mean count of 323. Three cases of the 22 tb cases had TB lymphadenitis, intestinal TB AND TB pericarditis. CONCLUSION : The various cns manifestations studied were TB meningitis, cryptococcal meningitis, tuberculoma, toxoplasmosis, PML, stoke, ATM. TBM was the most common infection observed. TB occurred over a range of CD4 counts so cannot be used as a AIDS defining illness. The mortality for CNS TB was more when it occurred with low CD4 counts. Headache was the most common presentation

Improved query plans for unnesting SQL nested queries

The SQL language allows users to express queries that have nested subqueries in them. Optimization of nested queries has received considerable attention over the last few years. The first algorithm for unnesting nested queries was Kim's algorithm, but this technique had a COUNT bug for JA type queries. Later few researchers gave more general strategies to avoid the COUNT bug. Finally to all this M. Muralikrishna modified Kim's algorithm so that it avoids the COUNT bug. The modified algorithm may be used when it is more e±cient than the general strategy. In addition, he presented a couple of enhancements that pre-compute aggregates and evaluate joins and outer joins in a top down order. These enhancements eliminated Cartesian products when certain correlation predicates are absent and enabled us to employ Kim's method for more blocks. Apart from this he proposed the Integrated algorithm for generating query plans for a given input query. In this thesis we have given a new solution for implementing the Kim's modified algorithm of unnesting nested queries and this also avoids the COUNT bug convincingly. Integrated algorithm generates °aws query plans, which has been modified in this thesis. We have also shown experimental results proving one query plan among the all other as computationally better one. These computations are in terms of elapsed time. We have carried out experiments for di®erent data sets of varying sizes from 100 to 1000 tuples in each relation. These results are taken as average of some possible iterative execution of each query plan. Finally, we incorporate the above improved merits into a new unnesting algorithm