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Techie Magazine 2011

  • Written by PunithaV ECE
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Kamikaze

Kamikaze “divine wind" is a word of Japanese origin, which in English usually refers to the suicide attacks by military aviators from the Empire of Japan, against Allied shipping, designed to destroy as many warships as possible in the closing stages of the Pacific campaign of World War II. Kamikazes were the most common and best-known form of Japanese suicide attack during World War II. The Imperial Japanese Navy, in particular, used or made plans for various suicide attacks, including midget submarines, human torpedoes, speedboats (some of which were also commissioned by the army) and divers. The tradition of death instead of defeat, capture, and perceived shame was deeply entrenched in Japanese military culture. It was one of the primary traditions in the samurai life and the Bushido code: loyalty and honor until death; or in the Western vernacular "death before dishonor!"

  • Written by PunithaV ECE
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Oasis Class

The Oasis class is a class of Royal Caribbean International cruise ships that are the world's largest passenger ships. The Oasis class has surpassed the earlier Freedom class as the world's largest passenger ships. At 360 m (1,181 feet) in length Oasis is 21 meters (69 ft) longer, 8.5 meters (28 ft) wider, and with a gross tonnage of 225,282, is almost 45% larger. Oasis class vessels carry over 5,400 passengers.

  • Written by PunithaV ECE
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TV Remote Wrist Watch

With the new and super attractive technologies coming up everyday another appealing technology has come up for all the TV lovers which will surely be a source of attraction and fascinating for everyone. It is a two in one Wrist Watch where you can use it as a TV Remote as well and to see the time. It surely will be loved by all the couch potatoes who do not even feel like moving and picking up the remote. This TV Remote Wrist Watch holds and performs a lot of functions and has the features which one wants in a Wrist Watch. Its size is bigger than the usual Wrist Watches as it has the Remote. It holds six functions to control television which are to perform volume, channel up and down, fast forward and rewind, power button and play button. It’ll also control DVD player and any other devices that use infrared signals.

  • Written by Muthukumaran ECE
  • Hits: 2007

Gamma knife

Gamma Knife is a device used to treat brain tumors with a high dose of radiation therapy in one day. The device was invented at the Karolinska Institute in 1967 by Lars Leksell, a Swedish neurosurgeon, and Börje Larsson, a radiobiologist from Uppsala University.


The Gamma Knife device contains 201 cobalt-60 sources of approximately 30 curies (1.1 TBq), each placed in a circular array in a heavily shielded assembly. The device aims gamma radiation through a target point in the patient's brain. The patient wears a specialized helmet that is surgically fixed to the skull so that the brain tumor remains stationary at target point of the gamma rays. An ablative dose of radiation is thereby sent through the tumor in one treatment session, while surrounding brain tissues are relatively spared.

Uses

Radiosurgery uses high doses of radiation to kill cancer cells and shrink tumors, delivered precisely to avoid damaging healthy brain tissue. Gamma Knife radiosurgery is able to accurately focus many beams of high-intensity gamma radiation to converge on one or more tumors. Each individual beam is relatively low energy, so the radiation has little effect on intervening brain tissue and is concentrated only at the tumor itself.

Effectiveness

Gamma Knife radiosurgery has proven effective for patients with benign or malignant brain tumors, vascular malformations such as an arteriovenous malformation (AVM), pain or other functional problems. For treatment of trigeminal neuralgia the procedure may be used repeatedly on patients.

The risks of Gamma Knife radiosurgery treatment are very low and complications are related to the condition being treated.
 

  • Written by Indhumathy
  • Hits: 1974

More Accessible Silicon Optical Chips

In advance days, Silicon or germanium is used as a material for making each and every electronic devices.

Dr. Michael Hochberg, photonics professor from University of Washington and his research team are developing design tools to build inexpensive, next-generation silicon-based electro-optical chips, which allow computers to move information with light and electricity using commercial nano fabrication tools.
 

  • Written by PunithaV ECE
  • Hits: 3386

The first full electric vehicle- Nissan Leaf

Nissan Leaf is the first full electric vehicle. In the history of Car of the Year, the Leaf brings the award to Nissan 18 years after the Micra, the first Japanese model to win.  Range between recharges –up to 8 hours in a home supply point- varies a lot depending on the style of use. The Nissan Leaf’s lithium ion pack (installed under the passenger area under the seat and floor) produces 90kW and supplies power to the AC electric motor which produces 80kW (107 horsepower) and 280Nm of torque. It’s definitely not going to be a scorcher – it’s likely that due to gearing limitations, the top speed is limited to just over 140km/h and there is no 0 to 100km/h acceleration time given. Nissan’s Leaf may ‘electrify’ India in 2011-12

  • Written by PunithaV ECE
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Mont Blanc-White Mountain

Mont Blanc ( meaning "White Mountain") is the highest mountain in the Alps. Mont Blanc, a huge mountain massif straddling the French and Italian border, is simply the most dangerous mountain in the world. Lots of people are killed and injured on it every year, and still they come in hordes to ascend to the roof of Europe. Why? Because it is popular for mountaineering, hiking, skiing and snowboarding. The 11.6 km (7¼ mi) Mont Blanc Tunnel runs beneath the mountain between Italy and France and is one of the major trans-Alpine transport routes. 

  • Written by PunithaV ECE
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Sukhoi Multi-role Fighter Jet

The Sukhoi has long been a brand name in the aviation world. On the world fighter market Russia’s Sukhoi is pinning its hopes, in the near future, on a substantially modernized Su-35 multi-role fighter. Russia and India are jointly developing the Sukhoi PAK FA / T-50 the new 5th generation fighter by Russia. The Sukhoi -- standing for Advanced Frontline Aviation Aircraft System -- is a stealth-enabled fighter jet designed to compete with the American Lockheed Martin F-35, Boeing F-22 Raptor the only fighter in the world that can supercruise. The developers describe the T-50 PAK FA as having excellent maneuverability, supersonic cruising speed, long range and high protective properties. They make it superior to all other 4th generation fighters now under development worldwide.

  • Written by Hema
  • Hits: 1851

WHY "ENGLISH"???

WHY ENGLISH???

“High achievement always takes place in the framework of high expectation.”

                                                          - Charles F. Kettering (1876-1958)
                                                        [American engineer, inventor of the electric starter]

     English is the universal example of an international language. Everyone wishes to master this language for the purpose of application—get chosen at the interview, higher education or for settling abroad. But it is not to be forgotten that mastering a non-native language is a Herculean task, yet the same could indeed be achieved with constant practice and sheer determination.


     It is the transition period when the student enters into college. They have their own whims and fancies about college life due to the tremendous influence of mass-media. He should properly be tuned first and brought into the seriousness of the professional course. Any individual irrespective of his background and other influence would certainly want to speak English in such a way that everyone marvels at them. This includes his effort to expand his vocabulary, learn few foreign words and phrases to show off as the so called ‘educated’. There are three stages in adapting the fluency of any language: drilling, mimicry and memorization—almost unavoidable in a foreign language instruction. Mimicry—provides necessary meaningful repetition of perception and production of language itself. The acquisition of foreign language is accomplished through memorization. If this turns out to be the sole purpose of every language learner, the process becomes easy. It is also to be noted that this could be attained with aid of listening to audio tapes, watching selective videos & reading novel books.

     In today's scenario, mastery of words would place you in a good profession as most of the interviews are based on listening, writing and reading. Learning of vocabulary adds to the beauty of a language spoken. The more words you learn, the more confident you’ll be to speak or write. A student with adequate vocabulary can function effectively and efficiently. Learning new words would help one to attend many entrance tests confidently, and mastering them will eventually lead to improve communication skill. Learning idioms and proverbs indeed enriches vocabulary; the meaning of which cannot be inferred from the words, it has a different meaning when analyzed deeper. It would make your language interesting and attract the listeners. Say, “burning the candle at both ends” would mean trying to do many works at a time; and “cat nap” would refer to a small sleep and so on are instances of an idiomatic expression.

     Writing itself is indeed a challenge. Some may be sound in speaking English but they cannot write equally well. Writing and speaking are two different concepts and there are only a handful of people who have mastered both the arts. First impediment in the written form is the spelling of the words they use. While speaking, we can use any kind of words with less effort because we are not going to write them down. But while writing, we have to be sure of the spellings and a change in the spelling may sometimes change the meaning of the words. English has many homonyms and homophones like “aisle/I’ll”, “allowed/aloud”, “berth/birth”, “beech/beach”, “dear/deer”, “die/dye”, “son/sun”, “eye/I”, “knot/not”, “pain/pane”, “peek/peak”, “see/sea” etc. and unless the writer is thorough with the spellings he or she cannot write the correct words. Failing to develop this skill, one could never be a good writer. If he is unable to write his thoughts effectively, no individual will show interest to hire him. Thoughts can accomplish form through words; hence it is yet again mandatory to improve writing skill.

     Listening—an act of hearing attentively is an inevitable part of learning English. Research shows that 45% of our time is spent on listening. Good listening skill is mandatory to get into a decent profession; for this skill is tested even at the times of interviews etc. active listening to conversation in English would serve helpful at this stage.

     One area which could be focused to improve pronunciation is phonetics. Phonetics helps to analyze and identify how each and every alphabet is pronounced. This could further be developed with the help of Daniel Jones Phonetic Dictionary where phonetic symbols are given for each alphabet. For instance, castle should be pronounced with a silent ‘t’ as /ka:sl/, and succumb should be read as /sak^m/ with a silent ‘b’. There is always a tendency to mix /t/ and /d/, /p/ and /b/, /k/ and /g/, /f/ and /v/, /s/ and /z/, //`/ and /3/ sounds. Concentration on the pronunciation of vowel sounds and consonant sounds, the way they are articulated, mouth gymnastics or tongue twisters can be practiced to make the tongue flexible to utter the words. A few tongue twisters for practice would be: “The fast fury fox flew across a field in a flash, while the frisky frog and fish fell into a pond with a splash”, and “She sells sea shells on the sea shore, if she sells sea shells it must be the shells taken from the sea.”

     Teachers should motivate students for participative learning; this will solve all the stumbling blocks in students. Teaching and learning is never a one-way but a multi-way process. Teacher should not be seen as an adversary; as soon as the teaching is over, students should raise their doubts, clarification, etc. By doing so, students’ communication skills in English will gradually and unconsciously grow. To develop this, sufficient practice must be given to students in their preliminary stage; one of which would be insisting to speak in English.

 

Practice leads to perfection! Perfection leads to professional Engineers!!

 

Hearty wishes for the beginners who wish to do the change!


Thanks for reading!

  • Written by PunithaV ECE
  • Hits: 10605

Millau Viaduct, France

Millau Viaduct, France, is one of the most awesome civil engineering projects. It is a cable-stayed road-bridge that spans the valley of the river Tarn near Millau in southern France. Problems with traffic on the route from Paris to Spain along the stretch passing through the valley near the town of Millau, especially during the summer when the roads became jammed with holiday traffic, neccesitated the building of a bridge across the valley.
The bridge’s construction broke three world records:
The highest pylons in the world
The highest bridge tower in the world
The highest road bridge deck in Europe

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