2015
Electronics

Transformers are used throughout the world as a means of changing the AC supply voltage. However these are imperfect solutions as they have substantial no-load losses, are less efficient at both high and low loads, have significant regulation with load (and the line out follows input line changes), poor output limitation against overloading and are large and heavy using much iron and expensive copper. An alternative method has been developed using high frequency switching techniques, which is extremely compact, lightweight and highly efficient. It provides a user-settable closely regulated output voltage with current limit, and can reduce or increase the supply voltage, or both. Ideal for general purpose protected autotransformers and voltage optimisation as well as instrumentation/lighting/heating/motor supplies at ...

Abstract:

The person who is visually and physically impacted can use this device for his peaceful living. It actually works on the principle of binary coding with a microcontroller interface. It’s just like a glove. The binary code is assigned to a particular task and the code is decoded and it is fed to microcontroller. Output of the micro controller will be a voice which is pre-recorded. Five fingers play a major role here. We can make 32 gestures with one hand or can be designed according to utilization of the person based on his daily activities. Hence our device will be designed in such a way that the person just gives a gesture and the ...

We have developed and tested a strain gage that surpasses conventional foil technology, which is limited to less than 20 percent strains. This was a significant shortcoming given that new structural components on aerospace vehicles include highly elastic, low Young's modulus materials. For example, Kevlar-reinforced rubber and elastomers have a nonlinear stress-strain relationship - some with extreme rupture strains greater than 500 percent. Results from sensor tests indicate potential to use this new gage for elastic strain greater than 100 percent, with negligible localized stiffening. These tests indicate that, when used with specifically designed constant current signal conditioning, accurate static strain measurements are achievable for ground testing. Also, a conceptual temperature-compensation method has been conceived to greatly reduce measurement ...

Incandescent light bulbs are facing bans because they are a waste of energy and material due to extremely inferior efficiency and longevity. LED retrofit lamps seem to be the best choice and the new breed of LED-filament retrofit lamps with outstanding efficiency and omnidirectional light distribution obviously are the next best replacement of the Edison light bulb with the closest look and feel. Those are replacing 40 Watt incandescent light bulbs with just 4 Watt power consumption. However the DC-limiting linear IC within the E27 base still wastes approximately 20% of the power input, heating up the base and thus limiting the lifetime of the adjacent electrolytic buffer capacitor. Going beyond 4 Watt, losses grow worse: the 8 Watt ...

Keeping music organized for each individual musician in an orchestra is a chaotic process. Music gets lost or misplaced, pages fall on the floor, pages get out of order. When everyone does get on the same page; the conductor's notations aren't easily shared by all. Already on the market are music software programs that utilize tablets to show scanned copies of music. However; the tablets are too small and the wrong ratio; which for traditional music sheets is 9x12 inches, or 15 inches diagonal. Also, a tablet only shows one page at a time. My proposed "The Connector" is a system consisting of a mating strip allowing two tablets to connect together like a book binding to allow the ...

NASA’s Langley Research Center has developed a novel method of depositing metal and metal oxide nanoparticles onto various substrates (see ACS Nano, 3(4), 871–884 [2009]). It is rapid, scalable, and green since it does not require reducing agents or solvents. The process involves first mixing and then heating a metal salt (usually an acetate) with the desired substrate. Heating can be done by conventional thermal or microwave ovens. Conventional thermal processing takes several hours and requires an inert atmosphere, usually nitrogen. With microwave heating, the process is complete in a matter of seconds. The metal or metal oxide nanoparticles have potential use in electromagnetic applications. The nanoparticles have been evaluated for electromagnetic properties at high frequencies for potential antenna ...

A suit that has capability to regulate the body temperature because of the sensors fitted in it. The sensors automatically detect the surrounding temperature and adjust the temp of body. A dynamo is fitted in the suit along with the cooling and heating ...

This is no longer the age of phone calls; it is the day and age of texting, tweeting, snapchatting, and facetiming. Everyone is texting somebody, which means that at some point, people are bound to get the wrong message. If you can end a phone call before it connects, why can’t you do the same for a text? Once you download this app, you would no longer have to panic about sending a text to the wrong person. After you send a text, you can press the Message-Intercept button to immediately intercept the text and destroy it before the recipient can receive it. This successfully prevents the awkward occurrences of finding out that your message was sent to the ...

PROBLEM
People problematically procrastinate too much on their phones which can be disruptive to their lives. Being slaves to these devices creates Stockholm syndrome. Who is really in control?

CONTEXT
CASE STUDY 1
94% of all phone owners (between the ages of 18-35 aka Generation Y) use their phones as an alarm. Furthermore, 89% of this selection use their phone immediately after they wake up, meaning they stay in bed and waste approximately 20-35 minutes on average procrastinating on social networks etc rather than being productive.

CASE STUDY 2
Many phone owners (between the ages of 35 - 55 year olds aka Generation X) don’t have as much of a problem with Smartphone Addiction as they have lived prior ...

Motor vehicle theft for the relevant parts is a multi billion industry across the world. The insertion of electronic chips into the component parts would stop this level of theft as the components chip could be codified with the engine number. Similarly, bicycles could be facilitated with similar electronic chips. The ultimate would be a micro alarm at police check points to identify stolen part. The electronic driving licence and Insurance policy to have similar codification with engine numbers.

This could put a stop to car ...

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