SIGN LANGUAGE

Usually a human interaction focuses on the soundworld, where the communication is based on the speech and inwhich most information is conveyed via voice and othersounds. However, there are people who live in the world ofsilence. For them nothing can be heard, as they are hearingimpaired. For all of them a voice communication is impossibleor troublesome. Hence they have invented a sign language. Thesign language consists of a grammar and a vocabulary. Usuallythe grammar is significantly different to the spoken andwritten languages. Whereas the vocabulary is composed ofmany hand gestures and hand movements which convey themost important information, but which are supported by thewhole body movement and facial expressions. Considering thedifferences in the way the hearing impaired observe the world,they encounter huge difficulties while learning and using thewriting language, which is so common in daily communication.Since this sign language cannot be understand by others, weare in need of systems which can understand sign language.The existing systems handle that task not appropriate andaccurate. We introduce the concept of a chat for the signlanguage based communication, which overcomes thedeficiencies of the existing approaches. In the current systemthere is an action sensor available, this sensor has pressureswitches when any pressure is given then the pressure switchwill be closed and the signal is given to microcontroller. Themicrocontroller senses the signal coming from the pressureswitch and it understands the switch position and it sends thecommand signal to the computer through RS232 cable. TheRS232 cable is used to convert microcontroller understandablesignal to computer understandable signal. As soon as thecomputer gets the signal the program written in the computerwill detect the particular word and it will be played at the sameinstant. That’s how the sign language is converted in to voicelanguage

Current Status of Telemedicine Network in India and Future Perspective

India is a vast country with more than 1.15 billion population occupying an areaof 3 million sq km. It consists of 29 states and 6 Union Territories governed by a federalsystem. There is no national health insurance policy for the country. Government supportedhealthcare delivery follows a three tier system and is the primary responsibility of eachstate. It has been observed that there is a great deal of disparity in quality and access tohealthcare between urban and rural regions. This can be bridged through telemedicinetechnology if the tool is integrated into existing healthcare delivery system. Bothgovernment and private sector have been actively participating in tele-health programmes.India is starting to make strides in the fields of telemedicine and e-Health. The telemedicinemarket has witnessed spectacular growth during the last two years mainly because of timelyconvergence in the areas of Information technology, Communication & Healthcare alongwith launching of central e-health schemes including telemedicine by the Ministry ofHealth & Family Welfare

Survey of DC-DC Non-Isolated Topologies for Unidirectional Power Flow in Fuel Cell Vehicles

The automobile companies are focusing on recent technologies such as growing Hydrogen (H2) and Fuel Cell (FC) Vehicular Power Train (VPT) to improve the Tank-To-Wheel (TTW) efficiency. Benefits, the lower cost, `Eco\u27 friendly, zero-emission and high-power capacity, etc. In the power train of fuel cell vehicles, the DC-DC power converters play a vital role to boost the fuel cell stack voltage. Hence, satisfy the demand of the motor and transmission in the vehicles. Several DC-DC converter topologies have proposed for various vehicular applications like fuel cell, battery, and renewable energy fed hybrid vehicles etc. Most cases, the DC-DC power converters are viable and cost-effective solutions for FC-VPT with reduced size and increased efficiency. This article describes the state-of-the-art in unidirectional non-isolated DC-DC Multistage Power Converter (MPC) topologies for FC-VPT application. The paper presented the comprehensive review, comparison of different topologies and stated the suitability for different vehicular applications. This article also discusses the DC-DC MPC applications more specific to the power train of a small vehicle to large vehicles (bus, trucks etc.). Further, the advantages and disadvantages pointed out with the prominent features for converters. Finally, the classification of the DC-DC converters, its challenges, and applications for FC technology is presented in the review article as state-of-the-art in research

Steganalysis of YASS using Huffman Length statistics

This work proposes two main contributions to statistical steganalysis of Yet Another Steganographic Scheme (YASS) in JPEG images. Firstly, this work presents a reliable blind steganalysis technique to predict YASS which is one of recent and least statistically detectable embedding scheme using only five features, four Huffman length statistics (H) and the ratio of file size to resolution (FR Index). Secondly these features are shown to be unique, accurate and monotonic over a wide range of settings for YASS and several supervised classifiers with the accuracy of prediction superior to most blind steganalyzers in vogue. Overall, the proposed model having Huffman Length Statistics as its linchpin predicts YASS with an average accuracy of over 94 percent

IoT-based systems for soil nutrients assessment in horticulture

Soil nutrients assessment has great importance in horticulture. Implementation of an information system for horticulture faces many challenges: (i) great spatial variability within farms (e.g., hilly topography); (ii) different soil properties (e.g., different water holding capacity, different content in sand, sit, clay, and soil organic matter, different pH, and different permeability) for different cultivated plants; (iii) different soil nutrient uptake by different cultivated plants; (iv) small size of monoculture; and (v) great variety of farm components, agroecological zone, and socio-economic factors. Advances in information and communication technologies enable creation of low cost, efficient information systems that would improve resources management and increase productivity and sustainability of horticultural farms. We present an information system based on different sensing capability, Internet of Things, and mobile application for horticultural farms. An overview on different techniques and technologies for soil fertility evaluation is also presented. The results obtained in a botanical garden that simulates the diversity of environment and plant diversity of a horticultural farm are discussed considering the challenges identified in the literature and field research. The study provides a theoretical basis and technical support for the development of technologies that enable horticultural farmers to improve resources management.info:eu-repo/semantics/publishedVersio

Study of Sweep and Induced Dihedral Effects in Subsonic Axial Flow Compressor Passages—Part I: Design Considerations—Changes in Incidence, Deflection, and Streamline Curvature

This article presents the study of Tip Chordline Sweeping (TCS) and Axial Sweeping (AXS) of low-speed axial compressor rotor blades against the performance of baseline unswept rotor (UNS) for different tip clearance levels. The first part of the paper discusses the changes in design parameters when the blades are swept, while the second part throws light on the effect of sweep on tip leakage flow-related phenomena. 15 domains are studied with 5 sweep configurations (0∘, 20∘ TCS, 30∘ TCS, 20∘ AXS, and 30∘ AXS) and for 3 tip clearances (0.0%, 0.7%, and 2.7% of the blade chord). A commercial CFD package is employed for the flow simulations and analysis. Results are well validated with experimental data. Forward sweep reduced the flow incidences. This is true all over the span with axial sweeping while little higher incidences below the mid span are observed with tip chordline sweeping. Sweeping is observed to lessen the flow turning. AXS rotors demonstrated more efficient energy transfer among the rotors. Tip chordline sweep deflected the flow towards the hub while effective positive dihedral induced with axial sweeping resulted in outward deflection of flow streamlines. These deflections are more at lower mass flow rates