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Friday 18 January 2013

Japan to replace nuclear power plant with world's largest wind farm

In the aftermath of the March 2011 earthquake and tsunami, the Japanese government has turned away from nuclear power and the dangers it possesses and towards other renewable energy resources. The country plans to eventually shut down all of its nuclear plants and replace them with wind and solar plants. To that end, plans for wind farm construction have taken center stage, with this newest the most ambitious yet.

Currently, the largest wind farm in the world is off the coast of Suffolk in the U.K. Called the Greater Gabbard farm, it produces 504 megawatts of power using 140 turbines.

The new farm planned for Japan is expected to produce 1 gigawatt using just 143 turbines. Instead of anchoring each turbine directly to the ocean floor, the plan is to mount them on floating steel frames that will be anchored to the continental shelf below. To keep them upright, ballast will be used underneath. The plans also call for using 2 megawatt turbines, each standing 200 meters high. The site was chosen due to the existing infrastructure that had been used to transport power from the Daiichi plant before its destruction. Fukushima prefecture has stated its goal of becoming 100 percent energy self-sufficient by the year 2040.

In addition to the wind farm, plans are also being drawn up for the biggest solar farm in the country. The wind farm will be paid for using money currently being collected via a feed-in tariff scheme for wind projects set up by the government – it became effective July 1, 2012. Thus far, its inception has boosted energy produced by such plants, the Japan Wind Power Association says, by 8.2 percent already. Construction of the huge wind farm is expected to be complete by 2020. Project managers say that sufficient testing has been done with the design to ensure the new farm will not be harmed by earthquakes, tsunamis or typhoons.
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MONORAIL VS METRORAIL

There are many in the world that have only heard about monorail and never seen it. On the other hand metro rail, which was available to commuters in very few countries till a few decades ago, is now a reality in dozens of countries around the world. there are few difference in both these rails beside of the purpose that they both carry passangers from one place to another :p

Here is the brief breakers that makes a mono rail different from metro rail:
- Mono rail can go in congested short streets whereas Metro Rail cannot go in busy, overcrowded street.
- Monorail can be built faster with less cost. It consumes minimal space.
- Monorail can carry upto 700 people at a time. Metro Rail can carry thousands of people
- Metrorail can travel at higher speed than Mono Rail.
- Monorail travels in Single track
-Monorail is eco-friendly because it doesn't produce higher noise compared with Metro rail.
-Monorail costs 140 crore per km while Metrorail costs 170 crore per km. (according to 2012 survey)                         
-Speed of Monorail is limited to 15-40 km per hour where as the speed of Metrorail can go upto 80-120 km per hour.
-Passanger capacity per hour of Monorail is restricted to 10000 which is only 25% of a Metrorail.



IN PICTURE1: 4 COUCH MONORAIL
IN PICTURE2:8 COUCH METRORAIL

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MONORAIL IN MUMBAI

The Mumbai Monorail is a monorail system currently under construction for the city of Mumbai, India. The project is being implemented by Mumbai Metropolitan Region Development Authority (MMRDA), with Larsen & Toubro (L&T) and a consortium of Malaysian infrastructure Scomi Engineering. It will be the first monorail in India.Construction began in January 2009. The first line is scheduled to be commissioned in April 2013.
Mumbai is gone to become first city of India to host Monorail. Remember unlike other metropolitan cities in India, Mumbai doesn't have Metro rail. The only railway medium for local peoples was local trains those were facing a huge burden of daily passangers from the years. Now its coming Mumbai Monorail to share the burden of local trains with eco-friently manners and daily ridership 125,000(estimated).

IN PICTURES: Mumbai monorail on trial run on 26 january 2010.
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MONO RAIL IN NEW DELHI

Delhi the capital city of India is ready to host Monorail to get a solution of high traffic burden in the most populated city of India. The project is likely to start in mid 2013 and has a deadline of 2017 for its first operation on the 11 km long way of selected route from shastri park to trilokpuri in east delhi.

The Delhi Metro Rail Corporation (DMRC) has submitted a detailed project report of the 11km alignment from Shastri Park to Trilokpuri to the Delhi government. On Wednesday, transport minister Ramakant Goswami said government sanction for the project was expected to come through soon. "We are hoping that the project will get sanction within the next three months, so that work on the monorail can start," said Goswami. Officials said the project report had set 2017 as the deadline for completion if work starts this year.
IN PICTURES: RUNNING MONORAIL IN MOSCOW,RUSSIA.
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Wednesday 2 January 2013

Optical Thunderbolt cables in mass production, coming soon


Earlier this month Sumitomo Electric Industries was the first company to receive Thunderbolt certification from Intel, allowing it to start mass productionof optical Thunderbolt cables.
Thunderbolt is a high-speed communications technology that Apple has used in its latest Mac systems to offer fast data transfer, not to mention new ways to expand Mac systems. While quite fast at 20Gbps (10Gbps bidirectional throughput), the sheer speed of the technology has posed a challenge.
When digital devices communicate, signal quality degrades over increased distance, whether via a wired or wireless connection. This can lead to data packets being lost and retransmitted, reducing performance. Thunderbolt's high speed demands correspondingly high performance from its transmission medium, and so Thunderbolt cables made with conventional copper wiring were limited to around 3 meters in length.
To get around this distance limitation, one can use optical interconnects, which have been part of the Thunderbolt specification from the beginning. Optical Thunderbolt cables were originally slated for general release in 2012 but instead were issued only in small quantities. However, in December 2012 Intel certified Sumitomo's development of its optical Thunderbolt cable, allowing it to start mass production of the technology so as to make it available sometime this year.
There is no word yet on the pricing or exact release dates of the new cables, but there are some things to note.

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