scholarly journals Change in zooplankton community in Onagawa Bay, northeastern Japan after the Tohoku Earthquake and tsunami in 2011 off the Pacific coast of Japan

2020 ◽  
Vol 15 (3) ◽  
pp. 207-219
Author(s):  
Yoshinari Endo
Keyword(s):  
Pacific Coast ◽  
Zooplankton Community ◽  
Tohoku Earthquake ◽  
Northeastern Japan ◽  
The Pacific ◽  
Pacific Coast Of Japan

scholarly journals Seawater-leaching Testing for Arsenic and Heavy Metals in Tsunami Deposits Produced by the 2011 off the Pacific Coast of Tohoku Earthquake, Northeastern Japan

2014 ◽  
Vol 123 (6) ◽  
pp. 835-853 ◽  
Author(s):  
Takahiro WATANABE ◽  
Noriyoshi TSUCHIYA ◽  
Shin-ichi YAMASAKI ◽  
Ryoichi YAMADA ◽  
Nobuo HIRANO ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Pacific Coast ◽  
Tohoku Earthquake ◽  
Tsunami Deposits ◽  
Northeastern Japan ◽  
The Pacific

Nutrient status of Otsuchi Bay (northeastern Japan) following the 2011 off the Pacific coast of Tohoku Earthquake

2015 ◽  
Vol 72 (1) ◽  
pp. 39-52 ◽  
Author(s):  
Hideki Fukuda ◽  
Ryosuke Katayama ◽  
Yanhui Yang ◽  
Hiroyuki Takasu ◽  
Yuichiro Nishibe ◽  
...  
Keyword(s):  
Pacific Coast ◽  
Tohoku Earthquake ◽  
Nutrient Status ◽  
Otsuchi Bay ◽  
Northeastern Japan ◽  
The Pacific

Damage Assessment on Electric Power Failures During the 2011 off the Pacific Coast of Tohoku Earthquake

2012 ◽  
Vol 7 (sp) ◽  
pp. 491-499 ◽  
Author(s):  
Gaku Shoji ◽  
◽  
Dai Takahashi ◽  
Takuya Tsukiji ◽  
Satoshi Naba ◽  
...  
Keyword(s):  
Electric Power ◽  
Web Sites ◽  
Pacific Coast ◽  
Tohoku Earthquake ◽  
Damage Functions ◽  
Power Company ◽  
Northeastern Japan ◽  
The Pacific ◽  
Branch Office ◽  
Office Personnel

We collected data on the March 11, 2011, Great East Japan Earthquake by surveying web sites related to power failures during 2011 off the Pacific coast of Tohoku (northeastern Japan) and, in addition, by interviewing local government sectors and Tokyo Electric Power Company (TEPCO) branch office personnel. We quantify two damage ratios for power failures for subject municipalities defined by the ratio of the number of affected households and houses in a city to the number of related households and houses. This revealed the dependence of damage ratios on seismic intensities induced in subject municipalities. Damage functions related to power failures are then developed.

Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 4 — Experimental Study on Environmental Applicability and Durability of Damper

2018 ◽  
Author(s):  
Go Tanaka ◽  
Keisuke Minagawa ◽  
Kiyoshi Aida ◽  
Satoshi Fujita
Keyword(s):  
Viscous Fluid ◽  
Power Plants ◽  
Pacific Coast ◽  
Thermal Power ◽  
Tohoku Earthquake ◽  
Coal Fire ◽  
Proof Construction ◽  
The Pacific ◽  
Pacific Coast Of Japan ◽  
Fluid Dampers

A purpose of this study is an improvement of seismic proof construction for power plants to supply power stably at an emergency. At present, the most common type of power generation in Japan is thermal. In particular, coal-fire becomes base load power. A proposal of this study is that boiler structure is applied vibration control. The way is that a damper used viscous fluid is set instead of stopper between the boiler and the support structure. However, inside temperature of the boiler structure is higher than the environment of the general because it uses burning of coal and steam. Therefore, this paper shows that the damper has applicability for the environment of the boiler structure. Then it is necessary for structures to endure earthquake with long duration and long period component in Japan. The 2011 off the Pacific coast of Tohoku Earthquake had the largest energy in history of Japan with them. The damage occurred not only in Tohoku but also in far Tokyo and Osaka. Moreover, it is predicted that large earthquakes with them at the south Pacific coast of Japan occur. This paper shows that the developed damper is effective in earthquake with these characteristics by analyses and component tests.

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