Saturday, January 3, 2015

Shinkansen 700 Series with Duck Bill Nose



 
Shinkansen N700 series was developed with the nose have the “duck bill” design, it is intended to reduce the impact of boom noise when Shinkansen entering the tunnel. If Shinkansen  enter into the tunnel at speeds above 200 km / h, then at the other end of the tunnel will occur deafening sound termed “boom noise”. This phenomenon occurs very extreme in the previous Shinkansen series that have the conventional nose.

This phenomenon occurs as a hand pump tube driven by the pump valve, so that at the end of the tube there is a high air pressure and causing the boom noise. The longer the tunnel, the higher the sir pressure that will occurs. Shinkansen 700 series with a duck bill nose design, visually appear to be less good, but in terms of technology turns with such a design can reduce boom noise almost half if compared with conventional nose design.

 reducing "boom noise"

The technology of “duck bill” nose not only  reducing the phenomenon of boom noise but also noise pollution, and found to reduce power and energy consumption that used by Shinkansen when entering the tunnel. Shinkansen is more efficient and energy saving, because the duck bill nose can reduce air resistance. The other advantage  by reduce air pressure in the tunnel also reduces vibration that may result in a lifetime of components of Shinkansen.

 entering the tunnel


Shinkansen with duck bill nose design is the result of research on wind tunnel and the experiment that was also performed by using a mini model of the Shinkansen, which is monitored by sensors and computer simulators. And then it turns out duck bill nose design is superior compared to conventional design and bullets, especially at the time of entering the tunnel.

Sunday, June 21, 2009

What is a real Blog....?



Blog is usually the ideas or opinions of someone who is published through the Internet and the media shaped in webpage. Various kinds of purposes; share of opinion; knowledge sharing , expressing of experience or a traveling diary. Usually arises from people who have needs to express himself.

Begining of a blog was introduce to the advertising media, such as Google Adsense or Affiliate or PPC or PTC, Referral Links, and more, so many of blog that appear only have purpose of online business. Later there is a term appears that called a dummy blog, is a blog that created with containing of free article that took from free articles sites; or free article opensource. For a blog like this. the most important is containing of many interesting free article and allows to install various ads.

Online business blog is usually equipped with various weapons of internet marketing that will bring traffic into the blog. Because no traffic is mean no money. Either through submiting url to Search Engines, generating Meta Tags, or spreading External Links; this weapon is known by the term SEO (Search Engine Optimization). The other way is to introduce the blog on the site a forum, fiendsites, social bookmarking, etc.



A reference from Wikipedia :
http://en.wikipedia.org/wiki/Blog :
A blog (a contraction of the term "weblog") is a type of website, usually maintained by an individual with regular entries of commentary, descriptions of events, or other material such as graphics or video. Entries are commonly displayed in reverse-chronological order. "Blog" can also be used as a verb, meaning to maintain or add content to a blog.
A reference from Blogger :
http://www.blogger.com
In simple terms, a blog is a web site, where you write stuff on an ongoing basis. New stuff shows up at the top, so your visitors can read what's new. Then they comment on it or link to it or email you. Or not.


So what is a real blog ...??? Who has authority to decide..? And who will care..?

Preaxz.com of Indonesia elaborate Indonesian blog contest, which organized with the objective to provide limitations and term return a concept referred to as a website with a blog so that the development of the blog will not too far deviate from how a blog should be created. The blog contest will be start from the end of June 2009 up to july 2009.

A noble goal that can give a good image for the Indonesian bloggers embed minimum of motivation to make a good blog. Of course things like this would be if adequate support from the Indonesian bloggers. We as Indonesian are due to provide support so that these ideal and great vision would be successfully; creating a better image of the Indonesian bloggers.

Thursday, April 30, 2009

Get Lunch at Train Station in Japan

Foodshop at Nagoya Train Station



Japanese Lunch

If you need lunch while you are at the train station in Japan, it is not difficult because many shops sell food, including lunch. Of course food is Japanese food, lunch is usually rice and meat or fish or shrimp as well as Asian food. But sometimes there are also order of vegetables, but the noodle is a bit light.

A litle Europe or American food may be rarely found, except in the big stations will be found, such as fast food or fried chicken or burger. However, the bread will be easy to find a fresh or and have a taste. Food in Japan is not too expensive for the size of Europe and the United States people, but for Asian may be a little expensive. If you have

Japan money in 1000 yen, or approximately 9 US dollar you will get enough lunch.
Inside the Shinkansen train you can also buy food, stewardess who usually have to sell food. Or you can also order lunch on the Shinkansen, but the price will be different.

Softdrink will easily found in Japan in a variety of packaging, but the Japanese rule that just water is free and forbiden for sale. Softdrink or hot coffee can be found in the vending machine, the price varies from 100 yen to 600 yen.

Friday, April 17, 2009

Is Shinkansen always on time...?!

Shinkansen waiting for Typhoon up to 12 hours in Hiroshima station

Shinkansen not always on time, sometimes also experienced delays or delay departure. My husband had experienced a delay departure until 12 hours in Hiroshima station, this is caused by bad weather and typhoon. Thypoon in Japan ussualy occurs around July to November. Thypoon sometimes bring heavy rains and high wind velocity starting from 241 km/h and 67 m/s as superthypoon.

Shinkansen, which is relatively lightweight aluminum body may have a sufficient risk of an accident with a high-speed wind. With passenger safety reasons then the departure delay is a wise choice. Unlike the subway train (Chikatetsu) that runs on tunnel (under the land), the subway is relatively safe to use by the passenger at the time of typhoon season. But subway usually use for short traveling.

The passengers who have business dealings may have to choose other alternatives travel when Shinkansen having delays departure. Japan may need to think more in terms of long travel on the issue when there are typhoon season.
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