User profiles for Keiichi Ohta
 | Keiichi OhtaKobe university school of medicine Verified email at gsuite.kobe-u.ac.jp Cited by 127 |
Assessment of groundwater contamination by nitrate leaching from intensive vegetable cultivation using geographical information system
…, MAA Mohamed, H Terao, K Kato, K Ohta - Environment …, 2004 - Elsevier
This study employed the Geographical Information System (GIS) technology to investigate
nitrate contamination of groundwater by agrochemical fertilizers in the Kakamigahara Heights, …
nitrate contamination of groundwater by agrochemical fertilizers in the Kakamigahara Heights, …
Biomarker signature in tropical wetland: lignin phenol vegetation index (LPVI) and its implications for reconstructing the paleoenvironment
SM Tareq, N Tanaka, K Ohta - Science of the Total Environment, 2004 - Elsevier
Organic matter of a peat core (3.60 m, 7428 years BP) collected from Rawa Danau, west
Java, Indonesia, was analyzed to evaluate the early diagenetic fates of lignin in a tropical …
Java, Indonesia, was analyzed to evaluate the early diagenetic fates of lignin in a tropical …
Determination of hydroxyl radical photoproduction rates in natural waters
K Takeda, H Takedoi, S Yamaji, K Ohta, H Sakugawa - Analytical sciences, 2004 - Springer
The photochemical formation rates of hydroxyl radicals (OH radicals) in river water and
seawater were determined by a simple, rapid and sensitive benzene probe method, in which …
seawater were determined by a simple, rapid and sensitive benzene probe method, in which …
Lignin biomarker and isotopic records of paleovegetation and climate changes from Lake Erhai, southwest China, since 18.5 ka BP
SM Tareq, H Kitagawa, K Ohta - Quaternary International, 2011 - Elsevier
A sound knowledge of paleovegetation is fundamental to better understanding of past climate
variability, and provides necessary background for improving predictions of future climate …
variability, and provides necessary background for improving predictions of future climate …
[HTML][HTML] The therapeutic potential of epigallocatechin‑3‑gallate against human oral squamous cell carcinoma through inhibition of cell proliferation and induction of …
Oral squamous cell carcinoma (OSCC) is one of the most common malignant tumors in the
oral region. Despite current therapeutic strategies, the survival rate has not been improved for …
oral region. Despite current therapeutic strategies, the survival rate has not been improved for …
Distributed measurements with a long gauge FBG sensor using optical frequency domain reflectometry (1st report, system investigation using optical simulation model …
H Igawa, K Ohta, T Kasai, I Yamaguchi… - Journal of Solid …, 2008 - jstage.jst.go.jp
Optical fiber sensors have many advantages for structural health monitoring and are often
used to monitor the strain distribution of structures. However, using Fiber Bragg Grating (FBG) …
used to monitor the strain distribution of structures. However, using Fiber Bragg Grating (FBG) …
Characteristics and role of groundwater dissolved organic matter on arsenic mobilization and poisoning in Bangladesh
The fluorescence and molecular weight characteristics of dissolved organic matter (DOM) in
groundwater of Bangladesh were investigated to evaluate its multiple roles on arsenic (As) …
groundwater of Bangladesh were investigated to evaluate its multiple roles on arsenic (As) …
Hydrocarbon and elemental carbon signatures in a tropical wetland: Biogeochemical evidence of forest fire and vegetation changes
SM Tareq, E Tanoue, H Tsuji, N Tanaka, K Ohta - Chemosphere, 2005 - Elsevier
Evidence of changing vegetation in the tropical wetland (Rawa Danau, west Java, Indonesia)
over the past 7428 years is illustrated by elemental (soot) carbon (EC) and n-alkane …
over the past 7428 years is illustrated by elemental (soot) carbon (EC) and n-alkane …
Natural denitrification in the Kakamigahara groundwater basin, Gifu prefecture, central Japan
…, H Terao, R Suzuki, IS Babiker, K Ohta… - Science of the total …, 2003 - Elsevier
Although nitrate is recognized as the most common groundwater contaminant due to growing
anthropogenic sources, such as agriculture in particular, its adverse effects on human and …
anthropogenic sources, such as agriculture in particular, its adverse effects on human and …
Electrorheological effect in immiscible polymer blends
K Tajiri, K Ohta, T Nagaya, H Orihara, Y Ishibashi… - Journal of …, 1997 - pubs.aip.org
A new model of the electrorheological (ER) effect for immiscible polymer blends is proposed
on the basis of microscopic observations. In the absence of an electric field the polymer with …
on the basis of microscopic observations. In the absence of an electric field the polymer with …