Division of Mechanical Sciences: Recent submissions
Now showing items 541-560 of 1805
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Processing, Structure and Properties of Friction Stir Process Derived In-situ Nano Composites and Foams
High specific-strength materials with high toughness can reduce the weight of automobile and aerospace components. Lightweight components for these applications are essential, as they can significantly improve fuel efficiency. ... -
Non-catalytic synthesis of biodiesel and solubilities of mixtures of lipid derivatives in supercritical fluids
The fossil fuels are depleting rapidly as the demand for energy and its allied chemicals is continuously increasing in the modern world. In addition, the concerns over climate change due to the greenhouse gases emitting ... -
Syngas Fueled Solid Oxide Fuel Cell (Sofc) – Experiments and Analysis on Gas Characterization and Cell Performance
The present research addresses the complexities involved in the use of syngas as a fuel in a Solid Oxide Fuel Cell (SOFC). Solid oxide fuel cell is an efficient, clean direct energy conversion device. Being a fuel flexible ... -
Lab Experiment Documenting Growth of Microbes in an Extreme Condition
Bacterial population during 3.2 billion years of early earth was responsible for modifying the greenhouse gas concentration in the early earth. Here we studied the primitive facultative anaerobe E.coli K12, known to contain ... -
Nano-mechanical, optical and structural property correlations in binary, ternary, and quaternary tellurium-based chalcogenide glasses
Over a half century, from the advent of chalcogenide glasses, it was used for various applications like xerography, phase change memories (PCM), solar cells, infrared devices and so on. These applications made use of some ... -
Molecular Analysis of the Pore Forming Mechanism of an α-Helical Cytolysin
Pore forming toxins (PFTs) are lytic membrane binding proteins that are ubiquitous across the animal kingdom and disrupt the structural integrity of the host cell membrane. A unique characteristic of these toxins is that ... -
Role of Gypsum in Stabilisation of Expansive Soil with Lime/Fly Ash-A Micro-Mechanistic Study
Stabilization of expansive soils with various calcium–based stabilizers (lime and cement) directly or in combinations with other solid waste materials such as fly ash and ground granulated blast furnace slag (GGBS) etc. ... -
On the spatio-temporal distribution of stable isotope ratios in the hydrological cycle over India and the Southern Ocean
The isotopic composition of water vapor and precipitation at continental and oceanic sites depends on factors such as: the geographical location of the sampling site, meteorological conditions at the moisture source ... -
Improvement of High Temperature Strength of Al and Co Alloy by L12 Type Coherent Precipitates
The present work aims at developing a new class of high temperature alloys based on ordered intermetallic compound that forms coherently with the matrix during solid state transformation. The chosen intermetallics have ... -
Blast Loading on Plain and Perforated Tubes with High Explosives
According to the assessments of the United Nations, there are more than 100 million mines lying buried in various conflict zones of many countries in the world. As per their assessment, many thousand casualties happen ... -
Matrix cracking in polymer matrix composites under static and fatigue loading
Matrix cracking is the first and most dominant mode of damage in polymer matrix composite (PMC) laminates resulting in significant stiffness degradation under static and fatigue loading. Matrix crack evolution and its ... -
Modelling and optimization of novel therapies for HIV and hepatitis C virus infections
Curing infections by HIV and hepatitis C virus (HCV) have remained a challenge for a long time due to their efficient ways of evading host immune responses and therapies. They do so by rapidly mutating their genomes, which ... -
Uncertainty modeling and analysis of aerospace structures
Aerospace structures are different from other structures due to the difference in the required properties for an aerospace application. The primary motivation of this kind of structure lies in its lightweight nature, ... -
Simulation and Study of Noise Generated due to Turbulent Boundary Layer in Towed Hydrophone Array
In this thesis, a wave propagation based analytical model is developed for an underwater towed array. The towed array is modeled as an in finite tube filled with a certain liquid and submerged in an in finite volume of ... -
Synthesis, Microstructural Stability and High Temperature Deformation of Alumina-Carbon Nanotube Composites
Structural ceramics such as alumina are known to have excellent hardness and high temperature mechanical properties. In view of this, they are used as refractory linings to mitigate the effect of high temperature exposure. ... -
Impact of Local and Remote Land-Atmosphere Coupling on the Indian Summer Monsoon
India lies on the edge of the Asian summer monsoon domain and receives almost 80% of its annual rainfall during June to September (referred as Indian summer monsoon rainfall: ISMR). The dominant forcing behind inter-annual ... -
Analyzing Inter-modal Competition Between High Speed Rail and Conventional Transport Modes in Indian Context
Indian Railway provides an important mode of public transport in India. This is the most commonly used and cost effective long-distance transport system of the country. Indian Railways has played an immense role in ... -
Discrete Velocity Boltzmann Schemes for Inviscid Compressible Flows
It is known that high-speed flows are compressible. In large parts of the flow domains, the inviscid approximation is valid and this leads to Euler equations of gas dynamics. These inviscid compressible flows are modelled ... -
On the Contribution of the Launch Platform towards Acoustic Environment of a Launch Vehicle at Lift-off
A launch vehicle experiences intense acoustic loading in the initial phase of its lift-off due to the noise generated by the rocket exhaust. This affects the launch vehicle structure in addition to sensitive payloads and ... -
Design and Analysis of Multifunctional Composites for Unmanned Aerial Vehicles
The principal aim of this thesis is to analyse the effectiveness of multifunctional composites as intelligent structures to improve mechanical properties and activate additional non-structural features. In order to investigate ...