55 research outputs found

    Physico-Chemical Characteristics of Soil And Fly-Ash Around Chandrapura Thermal Power Station: A Comparison

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    Abstract : Fly-ash and native material (soil) were evaluated for physico-chemical properties and trace elements in their lechates as an essential requirement for environmentally safe disposal and improvement for soil fertility. Fly-ash and soil samples were randomly collected from Chandrapura Thermal Power Station (Bokaro, Jharkhand, India) and brought to Central Institute of Mining and Fuel Research, Dhanbad. Fly-ash and soil samples were leached with deionized water and lechates were analyzed following the methodology by ASTM (American Society for Testing Material) to determine the pH, EC, Ca, Mg, OC, Om, P and K. The extract of DTPA for micronutrients was determined

    Innovative Method for the Estimation of Closure Velocity between RAT Driven Drogue and IFR Probe Air to Air refueling Flight Trials

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    Air-to-air refueling for a fighter platform is a force multiplier in terms of increasing its combat radius and payload carrying ability. Adapting for such a facility especially for an aircraft under design and development is a challenging task. It requires rigorous ground and flight testing to meet the certification standards. One of important flight test parameter that needs to be validated for structural impact load calculations and certification needs is the closure velocity. The air-to-air refueller was equipped with a Ram-air-turbine powered drogue and chute system. An innovative methodology of estimating the closure velocity between the drogue of the mother aircraft and the in-flight refueling probe of the receiving aircraft was evolved. The method was employed and validated during the air-to-air refueling trials of a prototype fighter platform. The intention of this paper is to explain the methodology employed and deliberate the results obtained with respect to the air-to-air refueling certification

    Nations within a nation: variations in epidemiological transition across the states of India, 1990–2016 in the Global Burden of Disease Study

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    18% of the world's population lives in India, and many states of India have populations similar to those of large countries. Action to effectively improve population health in India requires availability of reliable and comprehensive state-level estimates of disease burden and risk factors over time. Such comprehensive estimates have not been available so far for all major diseases and risk factors. Thus, we aimed to estimate the disease burden and risk factors in every state of India as part of the Global Burden of Disease (GBD) Study 2016
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