Výsledky vyhledávání - "Tadashi Yamada"

Akademický článek

Study on a Water-Level-Forecast Method Based on a Time Series Analysis of Urban River Basins—A Case Study of Shibuya River Basin in Tokyo

Autor: Naoki Koyama, Mizuki Sakai, Tadashi Yamada

Publikováno v: Water, Vol 15, Iss 1, p 161 (2022)

In urban basins, localized torrential rain increases the water level of rivers in an extremely short time, thereby leading to flooding within an hour. Therefore, to achieve early evacuation, the water level should be accurately forecasted. The outflo

Externí odkaz: https://doaj.org/article/a9aabb543c7c408aab6712bdebd7aa31

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Akademický článek

Uncertainty Evaluation in Hydrological Frequency Analysis Based on Confidence Interval and Prediction Interval

Autor: Keita Shimizu, Tadashi Yamada, Tomohito J. Yamada

Publikováno v: Water, Vol 12, Iss 9, p 2554 (2020)

The shortage of extreme rainfall data gives substantial uncertainty to design rainfalls and causes predictions for torrential rainfall to deviate strongly from adopted probability distributions used in river planning. These torrential rainfalls are t

Externí odkaz: https://doaj.org/article/ab1b647063014a9baaabdb4d5e9218c6

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Akademický článek

Introduction of Confidence Interval Based on Probability Limit Method Test into Non-Stationary Hydrological Frequency Analysis

Autor: Keita Shimizu, Tadashi Yamada, Tomohito J. Yamada

Publikováno v: Water, Vol 12, Iss 10, p 2727 (2020)

Nonstationarity in hydrological variables has been identified throughout Japan in recent years. As a result, the reliability of designs derived from using method based on the assumption of stationary might deteriorate. Non-stationary hydrological fre

Externí odkaz: https://doaj.org/article/3771e27abc2941cd81b78f791af46a89

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Akademický článek

A Proposed Simultaneous Calculation Method for Flood by River Water, Inland Flood, and Storm Surge at Tidal Rivers of Metropolitan Cities: A Case Study of Katabira River in Japan

Autor: Naoki Koyama, Tadashi Yamada

Publikováno v: Water, Vol 12, Iss 6, p 1769 (2020)

All metropolitan cities in Japan are located in low-lying areas that surround ports. Accordingly, significant floods that occur in these cities will trigger the simultaneous occurrence of flooding by river water and inland flooding. However, existing

Externí odkaz: https://doaj.org/article/f5585949b28646f5ac2e71f330560f36

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Akademický článek

Determinants of health insurance and hospitalization

Autor: Tadashi Yamada, Tetsuji Yamada, Chia-Ching Chen, Weihong Zeng

Publikováno v: Cogent Economics & Finance, Vol 2, Iss 1 (2014)

Our paper empirically examines how the decision to purchase private insurance and hospitalization are made based on household income, socio-demographic factors, and private health insurance factors in both Japan and the USA. Using these two data-sets

Externí odkaz: https://doaj.org/article/276269d2b05c4c5ab1b61503e846b4ee

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