Missile Materials

The development of missile materials is the key to indigenous materials and their components. The selection of materials includes some the properties such as high strength to weight ratio, easy fabrication, good corrosion resistance, reliable quality, and high fracture toughness. The materials used for the airframe and propulsion system are alloys of aluminum, titanium, magnesium, and maraging steel. Non-metallic materials are also used such as carbon-carbon composites and polymer materials. High purity materials like phosphorous, and silicon are also important for material advancements. The paper outlines the needs and challenges of research and its solutions

NEW GEOMETRIC MODELING AND WORKFLOW FOR THE AIRBORNE DIGITAL SENSOR (ADS40): A FAST, EFFICIENT, RELIABLE AND HIGHLY ACCURATE APPROACH

ABSTRACT For the past several decades, there has been much interest in advancing photogrammetry, from acquisition to processing, from an analog technology to digital technology and much of this development has focused on using scanned aerial photographs. However, in order to truly bridge the gap between data acquisition and production, there has been a great need to develop digital acquisition capability. For the last few years, there have been a limited number of attempts to design two-dimensional photogrammetric digital cameras however, the limited number of pixels has hindered their applicability to extensive large scale mapping applications. Linear scanning technology can overcome such a limitation by increasing the number of pixels across the flying direction. Ground coverage along the flying direction is achieved by capturing adjacent image strips while advancing the airborne platform. The Airborne Digital Sensor ADS40 by Leica Geosystems is one such sensor that has been used for production since it was first released in 2000. It incorporates fully integrated GPS and IMU sensors that are used to observe the position and attitude of the camera in an integration process. However, the observations from the GPS and IMU sensors may be contaminated with bias values which will degrade the final adjustment results. In this paper, a new model for the ADS40 is developed. This model takes into account different GPS/IMU biases that are contained in the raw observations and/or result from the integration process. Estimating, and therefore correcting for, these bias values is achieved by utilizing a minimum number of ground control points. A new bundle adjustment procedure has been developed at North West Geomatics Ltd. that has been proven to generate highly accurate results. Based on this successful model, a new workflow that is fast, efficient and reliable has been adopted

HEAT TRANSFER ANALYSIS OF RECUPERATIVE AIR PREHEATER

Abstract: Steam generators are very complex class of pressure vessels. It contains many accessories for the generation of required steam quality. The prime motto of industrial steam generator is to generate steam at medium pressure (MP), low pressure (LP) steam at required pressure temperature and quantity for the process industry like sugar, paper, jute and chemical industries. LP and MP steam after expansion in the turbine from super saturation is utilized by process industry. In the present work Air Preheater, one of the accessories of the steam generator is analysed. Air preheaters make a considerable contribution to the improved overall efficiency of fossil-fuel-fired power plants. In this study, a theoretical design of Recuperative Primary Air preheater with In-line tube arrangement and a combination of fluid dynamics analysis with theoretical value. The model enables heat transfer of the flue-gas flow through the air preheater as well as the tubular heat transfer and the resulting temperature distribution in the matrix of the preheater. The present work is carried in Mysore Paper Mills (MPM) Bhadravathi, CFD (Computational Fluid Dynamics) analysis of recuperative air preheater is carried out using ANSYS CFX-12.1.The analysis of flue gas flow phenomenon and air flow phenomenon are discussed using Laminar model, k-ε model, k-ω model and SST model. The parameters like temperature distribution, heat flux, pressure drop, velocity, are also discussed. An increase of 2.7% in boiler efficiency was found out with incorporation of this design, their by an increase in the air inlet temperature of about 60℃ is been observed

A Proposed Methodology for the Development of Application-Based Formal Ontologies. Paper presented at the Workshop on Reference Ontologies vs. Application Ontologies

Formal ontologies are currently being developed for numerous applications. But the question of what constitutes a formal ontology, and how one goes about constructing such a thing, remains an open research topic. This paper proposes a general methodology for ontology construction through which it is argued that the successful design of ontology products depends upon the reciprocal relationship between abstract philosophical reasoning and application-based systems engineering. The proposed methodology offers insight into the rational, philosophically-grounded motivations for upperlevel ontology construction, coupled with certain empirical, domain-specific motivations necessary for its lower-level construction and implementation. To convey this methodology, I provide a brief examination of one such current research project, a Disaster-Response Ontology (Dis-ReO) aimed at improving data fusion for disaster-response activities such as casualty servicing, ambulance routing, and structural damage assessment

Final Report: Technical Support for Innovative Energy Systems the U.S. Chemical Industry -- Innovative Energy Systems Pilot Project - Chemicals Project Integrator

The University of Illinois at Chicago Energy Resources Center (UIC/ERC) was originally selected to carry out the role of project integrator for a planned solicitation calling for proposals for innovative concepts for energy efficient systems in the chemical industry. The selection was made as a result of a DOE Announcement of Funding Opportunity issued by the DOE Golden Field Office. The U.S. DOE, due to funding constraints, decided to change the role of project integrator into one of technical support to DOE and the Vision 2020 Steering Committee in carrying out the oversight and management of the projects selected from the planned innovative concepts solicitation. This project, initiated in April, 2005, was established to provide that technical support to the U.S. DOE Innovative Energy Systems Pilot Project for the US Chemical Industry. In the late summer of 2006, and as a continuation of the baseline technology analysis conducted by UIC/ERC under this project, DOE requested that UIC/ERC assist in the development of “technology briefs” in support of the DOE Save Energy Now program. The 100 technology briefs developed under this contract were utilized by the Energy Experts as part of their Energy Saving Assessments (ESA)