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What purpose of study of nanotechnology
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One of the biggest influences in my childhood was my uncle. He was an amateur ham radio operator and a dedicated electronics hobbyist. This was in the mid 1990s India, specialized electronic systems were prohibitively expensive, leading to growth of homebrew culture. I used to sit in his room every evening and observe with wonder, as he operated his homebrew radio setup, building strong connections with people across vast distances. His room which also served as his workshop, was stuffed with a bewildering array of components and spare parts. Noticing me lurking around, he would call me and try to explain the basics. He would mumble away, while I enthusiastically nodded along, but being in primary school I could never make head nor tail of it. This was my first introduction to electronics, sparking in me the flames of curiosity, burning ever brighter and illuminating my path.
The first opportunity I got to exercise my pent-up curiosity in electronics was when I matriculated as an Undergraduate at Manipal Institute of Technology. The VLSI Design course in my fifth semester drew my attention towards microminiaturization technology. My reasons for such a focus were manifold; I had a brilliant professor for this course, who placed great emphasis on the pioneering research happening at the micro scale. Also, VLSI is the crucial link between electronic circuits and computation systems, both of which are subjects close to my heart. Consequently, I selected the VLSI/ULSI process technologies elective in the subsequent semester. This course introduced me to the physics behind actual fabrication methodologies employed in the semiconductor industry. It brought back memories of the awe and wonder I had felt in my childhood. At this juncture,...
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... my research involved study of transport characteristics in semiconducting Carbon Nanotubes when interfaced with metal probes. The Schottky-Barrier CNFET tool published on NanoHUB by Dr. H.-S. Philip Wong et al., provided an excellent platform to test and refine my understanding of the phenomenon. Looking for more information on the topic, I stumbled upon his book “Carbon Nanotube and Graphene Device Physics”, which again proved indispensable. Dr. Wong's group has made unparalleled contributions to the field of Carbon Nanotube based Computation systems. If given an opportunity, I would be delighted to study under and work alongside such a distinguished professor. Moreover, Stanford University has a long established focus on excellence in research. I have cultivated an interest for the research in Nanoelectronics and I am now keen to take up graduate study in pursuit.
Since child I was attracted to science and technology, many of the appliances in my home succumbed to my curiosity. How things work has been something that has always intrigued me. Perhaps this is why I went toward engineering when I finished high school, though, that marked the beginning of a tough stage in my life. In early 2000, after three attempts at three different universities, I had again abandoned my studies. The reasons remain unknown, maybe the youth or lack of experience (maybe both, usually they come together).
They can be seen as a collection of rolled sheets of graphene. CNTs demonstrate superconductivity with very large temperature transition. Electrons transport and resistance of CNTs do not depend on the sizes of CNTs. Carbon nanotubes electrodes are constructed by combining graphite powder and multiwall carbon nanotubes in a pestle and a mortar. Then, paraffin is added to the mixture by a syringe before the mixture is packed in a glass tube. After the construction, its electrochemistry is tested to verify its electro-activity by using standard solution of Fe(CN)63-/Fe(CN)64. Care is taken on information about electrode interfaces; mass transiport needs to be minimized in order to be used in catalysis, sensing and electrodeposition (Elrouby, 2013).
In fabrication micro-sensors and devices micro-electro-mechanical systems (MEMS) provides significant opportunities, which are borrowed it fabrication abilities from semiconductor technology.
Ever since I was a child, I have had a great interest for the automotive industry. From car trivia to novel innovations, my innate passion for the automotive industry has always made me research the minutest detail of every vehicle that interested me. Since elementary school I would draw sketches of cars which incorporated technology which were unheard of at that time; novel devices such as electrochromic windshields, HUD displays, and wind turbines which would constantly re-generate electricity for the car. While growing up, my hobbies largely consisted of constructing countless Lego and Meccano sets, and repairing my mom’s 19 year-old car. In middle school, math and science were my favorite subjects: applying science and mathematics to solve real-world problems has fascinated me and I have also taken further steps to reach my goals. By the age of thirteen I devised a scaled model of a heliostat power plant, which successfully powered a light bulb. The mathematics beyond the focus points of parabolic dishes and thermodynamics was very advanced for my age, but I took up the challenge...
“Nanotechnology is science, engineering, and technology conducted at a nanoscale which is about 1 to 100 nanometers,” according to the National Nanotechnology Initiative. A nanometer is a billionth of a meter, there are 25,400,000 nanometers in an inch and a sheet of newspaper is about 100,000 nanometers thick. Putting that into perspective, if a marble were a nanometer, a meter would be the size of the Earth. Nanotechnology can be used throughout all fields of science, including chemistry, biology, physics, materials science and engineering to study and apply extremely small things. Physicist Richard Feynman introduced the concepts of nanoscience and nanotechnology with his talk titled “There’s Plenty of Room at the
basics of computers from my father when I was about 9 years old. Since then I
In the past eight weeks of Ms Annoushka Ishmael Learning with Technology class, I had the opportunity reflect and analyse the events that has shaped my life as a Technician. This was a unique experience where I was able to look back at my journey of all my Technology experiences. I was able to objectively revisit what I have done before and learnt new techniques. I reflect on many good and bad experiences with more comfort and confidence. For the first time, there was clarity and I became aware of my learning style which is a visual and hands-on learner.
As transistors get smaller and smaller, silicone transistors are shrinking rapidly to nearly atomic scale. As silicone transistors reach that size, it starts to become ineffective. Transistors has reached a saturation limit, where if made smaller electrons cannot be stopped from source to drain. Graphene now comes into the pictures. Graphene, is the hot topic that every physicists, material scientists, and electrical engineers have been talking about. Why did it garner such popularity in the scientific world, and deserve a Nobel Prize? One, out of many great future application of Graphene is further the shrinkage of transistors. Dominated in a world of silicone transistors, as it is being shrunk to near atomic sizes there emerges many limitations; one of which is the halt of further improvement in transistor speed. Graphene is composed of single carbon atoms bounded together to form a flat hexagonal plane, where one carbon is at each of the six corners. Multiple hexagonal shapes are connected together to form a plane. The “miraculous” physical aspect of this composition allows the e...
Dockery, Gabriel. “How Are Microprocessors Made.” eHow. eHow Inc., n.d. Web. 11 Feb. 2011. .
People travel miles in search of their true passion; some find them early in their life and I consider myself lucky enough to be one among them. I found my true calling at the age of 12 on a field trip to a milk factory. It seemed like the Disneyland of science with huge machineries, conveyer belts running all around, and instruments working about in their own rhythm with sheer intricacies and perfection. As a kid, I was eager to understand the mechanics behind this magical rhythm. The desire of gaining in-depth knowledge about Control System and Automation eventually led me to choose Electronics and Instrumentation Engineering as my undergraduate study.
I remember as a kid sitting on the lap of my father, while I was holding the wheel and he was controlling the gas pedal. I asked him questions like “How does a car start?” He would answer in simple words by saying, “This car starts when we put the ignition key; the power from the battery reaches the small gears (starter motor) and the big gear (the flywheel) will meet, causing the fly wheel to start rotating: then the car starts. “How come when we step on the gas pedal the car starts moving?” “This actually happens by the clutch of the car, which is used to smoothly transfer power from the engine to the wheels. And if it is pressed forcefully, the gas pedal causes friction with the ground, making a noise. So that is why it should be stepped on gradually.” These trips not only made me learn about technology more, it made me develop a relationship with my father. This was a big triumph for me and I continued to go there. In my freshman and sophomore year I volunteered at this place. When I was volunteering my father would give me projects to repair one of the cars with him and together we would do so. Through my time at EPEI, I realized that knowing one particular subject is not enough. I favored
At the Univ. of Manchester, I got more opportunities to sharpen my research and practical abilities. In the coursework of VLSI design: logic gates circuit design, I designed schematic diagram and layout, and constructed models for simulations. Subsequently, I constantly adjusted relevant parameters based on the simulations and theoretical knowledge. In two weeks of continuous testing, I ultimately designed a chip circuit with a high response speed. Additionally, in the alarm clock design project based on Microchip PIC18F6722, I not only achieved the fundamental alarm functions on the basis of the limited circuit components and a microcontroller, but independently designed extra functions so that users can load music files via USB port. The clock could produce the corresponding melody as the alarm simply through a single buzzer. Although these are simple practices, the process of applying knowledge to actual applications brings me closer to my dream of becoming an
Electrical engineering, I believe, is the only field where one’s work becomes the most instrumental part of one’s mundane activity and life, and the output produced stays forever to credit. My perception is that, this field requires a lot of patience, perseverance and management skills in order to be successful. The connection that electrical engineering offered between me and this world is the fact that you can become a person who can impact so many lives. This made me pursue Electrical Engineering. After four years of undergraduate studies in Electrical Engineering, I feel completely satisfied with my decision to choose this branch of engineering as my career option as it has revealed the most pragmatic and down-to-earth approach to tackling
Finding use in “spacecrafts, pacemakers, underwater systems, electric automobiles, and remote monitoring systems” (source 6), the atomic battery has existed for over a century and is growing to benefit our world. The atomic battery generates electricity from a nuclear reaction, utilizing the radioactive decay of specific elements. The atomic battery is certainly not meant for households or as a source of common battery use, but rather powerful equipment needing to run for long, extended periods. Atomic batteries are quite expensive, but can provide an immense amount of energy that will conduct over an extremely long life period. This paper will explain the basic functioning of an atomic battery, investigate a brief history of the atomic battery, and also examine one aspect of energy conversion within atomic batteries, thermal converters.
Electrical engineering arose in the late 1800s and was heavily influenced by the work of many pioneers such as Nikola Tesla, Thomas Edison, and George Westinghouse. These inventors contributed greatly to the work in which electricity could be efficiently produced, distributed and used to improve society in a big way. Electrical engineering is a form of science that specializes in the study of electricity, electromagnetism, and electromechanical devices. Mathematics is the common language that is used to describe the theories and principles that are in this field, also electrical engineers need to be able to navigate their way through equations that describe the laws and concepts of electrical engineering in order to solve complex problems.