Nanotechnology in science, engineering and technology represents the study of phenomena and the manipulation of materials at nanoscale, which is about 1 to 100 nanometers. At nanoscale, the properties of materials are unique and in most of the cases are dramatically improved from the properties of individual atoms due to increase in relative surface area and quantum effects. The unique properties of nanomaterials provide its beneficial use in various fields such as medicine, microelectronics, agriculture, material sciences etc. The construction industry is a new field for nanotechnology and is growing rapidly for the last few years. Nanotechnology based products can improve the current construction materials.
Shell-and-tube heat exchangers are the most common type of thermal equipment employed in chemical process industries. This widespread use can be justified by its versatility, robustness and reliability. Despite the technological advances of other exchanger types (e.g., plate-and-frame, spiral, lamella, etc. ), shell-and-tube heat exchangers will maintain a central position in industrial activities in the next years
Analytical Study of Field Shaper in Electromagnetic Welding Rajesh.N, Student, Dept. of Mechanical Engineering AMC Engineering college, Bangalore-560083 Email: firstname.lastname@example.org Shanthala K, Research scholar, Dept. of Mechanical Engineering, AMC Engineering college, Bangalore-560083 Email: email@example.com Abstract- Electromagnetic Welding (EMW) is a promising and relatively new manufacturing technology which is advantageous over conventional welding in many ways. EMW is a type of impact joining process which makes use of rapid energy source to accelerate and cause collision between two different metals at very high velocities by removing the layer of oxidation. The important characteristic of this process is non-contact
Review article Joseph eiffe, JS, Chemistry Title: Developments in Metal Organic Frameworks for utilization in Catalysis. Abstract: Metal organic frameworks (MOF’s) are crystalline materials comprised of metal centres co-ordinately connected to each other by poly dentate ligands. With the recent increase in research into MOF’s the interesting properties of these materials become apparent. Most notable of these properties are the very high specific surface area and very high porosity. These two properties make MOF’s interesting materials for catalysis.
Nanofluids are a fluids which consist of a base fluid with nano-sized particles (1–100 nm) suspended within them. These particles, generally a metal or metal oxide, increase conduction and convection coefficients, allowing for more heat transfer. In the past few decades, rapid advances in nanotechnology have lead to emerging of new generation of coolants called nanofluids . Compared to regular solid–liquid suspension, nanofluids possess the following advantages : • Higher specific surface area and therefore more heat transfer surface between particles and fluids. • Higher dispersion stability with predominant Brownian motion of particles.
The Growing trend of Mechanical Engineering is defined as the blend of traditional Newton’s Laws and Modern Automation. The highly intricate and innovative processes of Electrical, Electronics, Computers, Robotics, etc with Mechanical Engineering have vastly been developed in terms of Product Quality and Automation. A Passion to achieve expertise in Engineering and to be a part of the powerful technological workforce, are the objectives of my Graduate Study. I understand that a Master’s degree in Mechanical Engineering teaches students how to apply the principles of physics and materials science to design, improve, and analysis of mechanical processes, manufactured products and composite systems. I am a B.E.
The aim of this work is to study the aggregation based self assembly of novel Naphthalimide (NI) derivatives. NIs are well-known semiconductor materials which have fascinated substantial attentions both from scientific and technological points of view. Because of excellent fluorescent properties,15 large stokes shift and high photo stability. NI derivatives are potential compounds having application in electronic devices as molecular semiconductors and are functional materials for organic light emitting diodes,16 optical disks,17 photovoltaic elements18 and electro photographic photoreceptors.19 2. REVIEW OF LITERATURE Molecular self-assembly is a process in which separate or linked components molecules (or molecules) spontaneously form ordered aggregates and no external intervention; the interactions involved generally are non-covalent. Here, the structure of the assembly determined by the molecular structure.20 Synthesis creates molecules; like ways self-assembly constructs ordered varieties of macromolecules.
Companies that are members of standardization committees (e.g. OPC, OLE for Process control) and are thus setting the trends in matters of IT technologies generally develop these systems. As a matter of fact, they are now also penetrating the experimental physics laboratories for the controls of ancillary systems such as cooling, ventilation, power distribution, etc. SCADA systems have made substantial progress over the recent years in terms of functionality, scalability, performance and openness such that they are an alternative to in house development even for very demanding and complex control systems as those of physics experiments. Further we will discuss SCADA systems in terms of their architecture, their interface to the process hardware, the functionality and application development facilities they provide.
FUNDAMENTAL OF ENGINEERING THERMODYNAMICS (Part-I) 1 Introduction Fundamentals of engineering thermodynamics play an important role in achieving/moving towards better world through performance and improved designs by the measurement of factors like increase in output of final product, a reduction in input of a scarce resource, reduction in over-all cost & reduction in environmental impact. Often engineers requires to use the concept of thermodynamics and other engineering sciences like fluid mechanics and heat and mass transfer, to analyse and reinvent things intended for human comfort and safety Science of thermodynamics is much older than the Second World War and since then it has been one of the most important pillars in the development
Although electrical conductivity is an important factor in this type of machining, some techniques can be used to increase the efficiency in machining of low electrical conductive materials. The Spark Theory on a wire EDM is basically the same as that of the vertical EDM process. Many sparks can be observed at one time. This is because actual discharges can occur more than one hundred thousand times per second. The heat of each electrical spark, estimated at around 15,000° to 21,000° Fahrenheit.