Modelling and performance analysis of four and eight element TCAS

This semi-annual report describes the work performed during the period September 1989 through March 1990. The first section presents a description of the effect of the engines of the Boeing 737-200 on the performance of a bottom mounted eight-element traffic alert and collision avoidance system (TCAS). The second section deals exclusively with a four element TCAS antenna. The model obtained to simulate the four element TCAS and new algorithms developed for studying its performance are described. The effect of location on its performance when mounted on top of a Boeing 737-200 operating at 1060 MHz is discussed. It was found that the four element TCAS generally does not perform as well as the eight element TCAS III

Selection of Mixed Sampling Plan with QSS-1(n; c\u3csub\u3eN\u3c/sub\u3e, c\u3csub\u3eT\u3c/sub\u3e) Plan as Attribute Plan Indexed Through MAPD and LQL

A procedure for the construction and selection of the mixed sampling plan using MAPD as a quality standard with the QSS-1 (n; cN, cT) plan as an attribute plan is presented. The plans indexed through MAPD and LQL are constructed and compared for efficiency. Tables are provided for selection of an appropriate sampling plan

An Efficient Anomaly Detection Through Optimized Navigation Using Dlvq-Cdma And H-Dso In Healthcare Iot Environment

An Anomaly detection (AD) framework intends to discover irregular data and also unusable activities in a system. The abnormality in the healthcare information is picked up by the AD in the healthcare system and then, the outcome is updated for the authority to evaluate the data. Numerous researchers have developed an AD method that has the disadvantage of data loss issues and complexity in computation. An enhanced AD framework utilizing Deep Learning Vector Quantization-Correlation Distance Mayfly Algorithm (DLVQ-CDMA) and Hyper-sphere Dolphin Swarm Optimization (H-DSO) methodology is presented in this work to overcome these disadvantages. By aid of the Internet of Things (IoT)-connected systems, proffered model gathers information about the patient and as well forwards the information to patient's health care application. Information from health care application is then sent via the optimal path by utilizing the H-DSO method. The data is uploaded to the cloud server later and then, it is recovered and provided to the AD system. The data is then pre-processed in an AD system. After extricating the features, the feature reduction is performed by employing the Entropy-Generalized Discriminant Analysis(E-GDA) scheme. Subsequently, the DLVQ-CDMA algorithm is utilized with the required features. Information is formerly categorized as usual data or irregularity data. data, which is attacked is stored in the log file and the normal data will undergo further evaluation for the identification of the presence of disease or disorder. After evaluation, the outcome is communicated to the patient. The experiential analysis specifies that the proffered DLVQ-CDMA methodology executes better than the prevailing methodologies

Angiographic determinants for side branch treatment in distal unprotected left main coronary artery bifurcation percutaneous coronary intervention with single stent crossover technique

 Background: The aim of this study was to analyze angiographic parameters such as bifurcation angle, diameter at the polygon of confluence (POC) and SYNTAX score in predicting the need for side branch treatment with single-stent crossover technique from distal unprotected left main coronary artery (ULMCA) to the major side branch.Methods: This was a retrospective and observational study. A total of 83 patients with distal ULMCA lesions were enrolled. Patients who underwent provisional single-stent crossover technique were compared with patients that required side branch treatment though plain old balloon angioplasty (POBA) 5 (6.0%) or stenting 7 (8.4%). Angiographic parameters, bifurcation angle, diameter at the POC and the SYNTAX score were analyzed for their ability to predict the need for side branch treatment.Results: Mean age of patients was 58.2±5.3 years. Males constituted 61 (73.5%) patients. Post main branch stenting 5 (6.0%) and 7 (8.4%) patients required side branch treatment with POBA and stent implantation, respectively. Binary regression revealed bifurcation angle (Z: 1.15, OR: 0.99, 95% CI: 0.97-1.01, p=0.25), diameter at the POC (Z: 1.1, OR: 0.82, 95% CI: 0.32-2.13, p=0.272) and SYNTAX score (Z: 1.51, OR: 1.18, 95% CI: 0.95-1.45, p=0.132) did not correctly predict the requirement of side branch treatment.Conclusion: Left main coronary artery to main branch stenting can be performed safely with single-stent crossover technique, irrespective of presence of side branch disease across a wide range of bifurcation angles, diameters at the POC and SYNTAX scores.

THROMBOLYTIC ACTIVITY OF Punica granatum FRUIT AND PEEL EXTRACT

Objective: The present study was undertaken to investigate the thrombolytic activity of Punica granatum fruit and peel extract.Methods: Phytoconstituents and free radical scavenging activity of P. granatum extract were performed. Ethanolic and aqueous extract of fruit andpeel of the plant was used for in vitro clot lysis activity using streptokinase (SK) as standard. In a series of pre-weighed eppendorf tubes, equal volumeof venous blood was collected and serum was removed and the tubes were weighed. The tubes containing clot were incubated with fruit, peel extract(100 ug/ml), and SK individually at 37°C for 60 minutes. After incubation, fluid obtained was removed, and tubes were again weighed to observe thedifference in weight after clot disruption. The percent of clot lysis was determined.Results: Free radical scavenging activity of the extracts was increased in a dose-dependent manner. Of the extracts, ethanolic extract showedmaximum activity as compared with aqueous extract, whereas the ascorbic acid exerted maximum activity as compared with the extracts. Maximumthrombolytic activity (59%) was observed with ethanolic extract of peel of the fruit.Conclusions: The present study concluded that the aqueous and ethanolic extracts of P. granatum fruit and peel possess thrombolytic activity.Keywords: Punica granatum, Antithrombolytic activity, Antibacterial, Antioxidant, Phytochemicals

A Compartive analysis of functional outcome of tibial plateau fractures treated with proximal tibial locking plate with raft screw technique and conventional buttress plating

BACKGROUND AND OBJECTIVE: Fractures of the tibial plateau range from simple lateral condyle fracture to severe comminuted metaphyseal fractures associated with varying degrees of articular depression. Management of these complicated fractures remains challenging. The aim of this study is to compare the functional outcome of tibial plateau fractures treated with proximal locking plate with raft screws (raft plating) and conventional buttress plating. MATERIALS AND METHODS: Our study was a prospective cum retrospective study, conducted at the Institute of Orthopaedics and Traumatology, Madras Medical College and Rajiv Gandhi Government General Hospital, Chennai between July 2013 to September 2014. Patients admitted with tibial plateau fractures (type II to VI Schatzker) were divided into two groups of 10 each. One group was treated with raft plating and another with buttress plating. They were followed for a period of 6 months. Functional outcome was assessed by knee society score devised by the hospital for special surgery. RESULTS: In raft plating group, 7 patients had excellent results, 2 had good results and 1 had fair result. In buttress plating group, 2 had excellent results, 2 had good results, 5 had fair results and 1 had poor result. The mean knee society score in the raft plating group was 84.8 and in the buttress plating group, it was 71.6. By analysis of the results, there was statistically significant difference in the functional outcome of patients treated by raft plating compared to buttress plating. CONCLUSION: Raft plating prevents the late subsidience of articular surface and hence better functional outcome. From this study, it can be concluded that when compared to buttress plating, raft plating is a better and effective method for achieving good to excellent results providing almost full range of motion and maintaining articular congruity in the treatment of tibial plateau fractures

Extending the DPSIR framework to analyse Driver-Pressure-State-Impact-Response of sand dune management in Manawatu-Whanganui (New Zealand) since the 19th century

Coastal sand dunes are multifunctional landscapes with rich biodiversity. In New Zealand, with the establishment of European settlement around 1840, dunes in the Manawatu-Whanganui region were affected due to the removal of their vegetation cover by human activities and animal grazing. As a result, sand drifted further inland affecting villages, infrastructure and agricultural areas. The main response was to introduce marram grass (Ammophila arenaria) used in Europe to stabilize dunes. This solution caused significant environmental impacts as marram grass turned invasive and native habitats of fauna and flora significantly decreased.This paper focused on the long-term analysis of aspects related to sand dune management in the region during two-time frames: 1) from the 19th to the late 20th century and 2) from then on to the early 21st century, using the innovative spiral DPSIR (Driver-Pressure-State-Impact-Response) framework. Data for this study comes from historical records, scientific literature and present management reports.The integrated spiral framework allows for establishing the connections between historical and future man-agement initiatives for mitigating and adapting to environmental impacts due to socio-economic drivers and their pressures. The study reinforces the paradigm shift from dune stabilization before the late 20th century to the restoration of stabilized dunes to make them active for enhancing native biodiversity should be again assessed in the context of sea-level rise during this century. Coastal managers should adopt an optimized solution between these two extreme solutions adopted from the 19th century to the present, by considering long-term and interdisciplinary analysis to better understand the systems' evolution and the full consequences of human actions.info:eu-repo/semantics/publishedVersio

IN VITRO ANTIDIABETIC, ANTIOXIDANT AND ANTI-INFLAMMATORY ACTIVITY OF CLITORIA TERNATEA L

Objective: To investigate the in vitro Antidiabetic, Antioxidant and Anti-inflammatory activity of Clitoria ternatea L. leaves and flowers. Methods: Phytochemicals of leaves and flowers were analysed by using standard methods. In vitro antioxidant studies were carried out for the ethanolic extract of the Clitoria ternatea leaves and flowers using various free radical models such a DPPH, Reducing power assay and Hydrogen peroxide scavenging assay. In vitro antidiabetic assay such as Non-enzymatic glycosylation of haemoglobin assay, Glucose uptake in Yeast cells and Inhibition of salivary-amylase enzyme were carried in ethanolic extract.. In vitro anti-inflammatory activity such as inhibition of albumin denaturation and membrane stabilization assay were performed in ethanolic extract. Results: Preliminary phytochemical screening of ethanolic extract of the Clitoria ternatea revealed the presence of various bioactive components like alkaloids, flavonoids, steroids, glycosides, phenol, saponin, terpenoids and tannin in both leaves and flowers. Anthroquinone is absent in both the parts studied. The in vitro antidiabetic potential of plant extract was confirmed through non enzymatic glycation, glucose uptake by yeast cells and amylase inhibition methods. Antiinflammatory activity of Clitoria ternaea was also confirmed. Conclusion: The result of the present study concluded that the ethanolic extracts of Clitoria ternaea L. leaves and flowers possess significant antidiabetic, antioxidant and anti-inflammatory activity. The potential pharmacological activity of Clitoria ternaea L. leaves and flowers might be due to the presence of phytochemicals

The Scope for Development of Magnesium Industry in India

IN THIS era of "sputniks" and "space flights", weight saving poses to be a problem of prince importance with its direct influence over increasing speed and fuel economy. Magnesium and magnesium base alloys are known to be the lightest structural materials today, and have been employed not only for space research and rocketry but for various types of aero, marine and road trans-portation vehicles

Structural and Electrical properties of ZnO Nanorod based dye sensitized solar cell

ThePreparation of nanorod involves simple and novel design of sol-gel process. Further, by using the prepared nanorods,working electrode will be prepared and it will be sensitized with ruthenium dye. A platinum coated FTO electrode will beused as a counter electrode. Dye sensitized solar cell will be assembled by using the working electrode and counterelectrode. FE-SEM and UV characteristics have been carried out at 250ᵒC, 350ᵒC&450ᵒC. The size and band gap ofnanorod at these temperatures has been found out to be 1μm and 2.95eV, 200nm and 2.86eV, 100nm and 2.79eVrespectively. The power conversion efficiency and the fill factor have been obtained as 2.72% and 0.722 respectively