Search Results - "TAKAKU, Yuichi"

Variation of Iron Isotope Ratios in Anthropogenic Materials Emitted through Combustion Processes by Kurisu, Minako, Sakata, Kohei, Miyamoto, Chihiro, Takaku, Yuichi, Iizuka, Tsuyoshi, Takahashi, Yoshio

“…Iron isotope ratios (δ56/54Fe) of various anthropogenic materials produced by combustion processes were analyzed. It was revealed that particles emitted…”
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Reconstructing the chronology of the natural and anthropogenic uranium isotopic signals in a marine sediment core from Beppu Bay, Japan by Takahashi, Hodaka, Sakaguchi, Aya, Hain, Karin, Wiederin, Andreas, Kuwae, Michinobu, Steier, Peter, Takaku, Yuichi, Yamasaki, Shinya, Sueki, Keisuke

“…The long-lived U isotopes, 233U and 236U, have been used increasingly in recent years as marine circulation tracers and for identifying sources of uranium…”
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240Pu/239Pu and 242Pu/239Pu atom ratios of Japanese monthly atmospheric deposition samples during 1963–1966 by Ohtsuka, Yoshihito, Aoyama, Michio, Takaku, Yuichi, Igarashi, Yasuhito, Hattori, Michinari, Hirose, Katsumi, Hisamatsu, Shun’ichi

“…Global fallout plutonium isotopic ratios from the 1960s are important for the use of Pu as environmental tracers. We measured the 240 Pu/ 239 Pu and 242 Pu/…”
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Estimation of dietary 14C dose coefficient using 13C-labelled compound administration analysis by Masuda, Tsuyoshi, Yoshioka, Toshitada, Takahashi, Tomoyuki, Takeda, Hiroshi, Hatta, Hideo, Matsushita, Kensaku, Tako, Yasuhiro, Takaku, Yuichi, Hisamatsu, Shun’ichi

“…Carbon-14 released from nuclear facilities has been assessed to contribute significantly to the radiation dose that people are exposed to through the food…”
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U-Pb dating of granitic cobble (dropstone) recovered from inner slope of the Chile Trench (48°S): Constraint for its provenance by Orihashi, Yuji, Anma, Ryo, Machida, Shiki, Sasaki, Minoru, Nakao, Kaishi, Takaku, Yuichi, Abe, Natsue

“…A granitic cobble was recovered with mud, semi-consolidated and consolidated siltstones to mudstones from the Dredge Site 16 (1,831 to 1,511 m below sea level)…”
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Identification of sources of lead in the atmosphere by chemical speciation using X-ray absorption near-edge structure (XANES) spectroscopy by Sakata, Kohei, Sakaguchi, Aya, Tanimizu, Masaharu, Takaku, Yuichi, Yokoyama, Yuka, Takahashi, Yoshio

“…Sources of Pb pollution in the local atmosphere together with Pb species, major ions, and heavy metal concentrations in a size-fractionated aerosol sample from…”
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Determination of Iodide, Iodate and Total Iodine in Natural Water Samples by HPLC with Amperometric and Spectrophotometric Detection, and Off-line UV Irradiation by TAKEDA, Akira, TSUKADA, Hirofumi, TAKAKU, Yuichi, SATTA, Naoya, BABA, Mitsuhisa, SHIBATA, Toshihiro, HASEGAWA, Hidenao, UNNO, Yusuke, HISAMATSU, Shun’ichi

“…We developed a rapid, simple method for the iodine speciation analysis of water and applied it to natural water samples. Simultaneous determinations of I− and…”
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Effect of aging on availability of iodine in grassland soil collected in Rokkasho, Japan by Takeda, Akira, Tsukada, Hirofumi, Takaku, Yuichi, Hisamatsu, Shun’ichi

“…Time-dependent changes in the availability of iodine in soil were investigated for 23 months. Stable iodine was added to a grassland soil collected in…”
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Accumulation of uranium derived from long-term fertilizer applications in a cultivated Andisol by Takeda, Akira, Tsukada, Hirofumi, Takaku, Yuichi, Hisamatsu, Shun'ichi, Nanzyo, Masami

“…The U concentrations in the soils of experimental fields with continuous fertilizer applications and in neighboring non-agricultural soils were determined. The…”
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Development of a Spiral Flow ICP Torch as a New Low-gas-flow Torch for Axially Viewing ICP Optical Emission Spectrometry by Ohata, Masaki, Kurosawa, Satoru, Shinodzuka, Isao, Takaku, Yuichi, Kishi, Yoko

“…A spiral flow ICP torch for axially viewing inductively coupled plasma optical emission spectrometry (axially viewing ICPOES) was developed as a new…”
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Spectroscopic Characteristics of Spiral Flow ICP for Axially Viewing ICP Optical Emission Spectrometry by OHATA, Masaki, KUROSAWA, Satoru, SHINODUKA, Isao, TAKAKU, Yuichi, KISHI, Yoko

“…Spectroscopic characteristics of a spiral flow inductively coupled plasma (ICP), which could be sustained stably at 9 L min−1 of Ar plasma gas flow rate with…”
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Major to ultra trace elements in rainfall collected in suburban Tokyo by Shimamura, Tadashi, Iwashita, Masato, Iijima, Satoe, Shintani, Megumi, Takaku, Yuichi

“…Major to ultra trace elements such as rare earth elements (REEs), platinum group elements (PGEs) in 20 rainfall events from suburban Tokyo were determined by…”
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Daily Radionuclide Ingestion and Internal Radiation Doses in Aomori Prefecture, Japan by Ohtsuka, Yoshihito, Kakiuchi, Hideki, Akata, Naofumi, Takaku, Yuichi, Hisamatsu, Shun’ichi

“…ABSTRACTTo assess internal annual dose in the general public in Aomori Prefecture, Japan, 80 duplicate cooked diet samples, equivalent to the food consumed…”
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Effect of the counter anion of cesium on foliar uptake and translocation by Hasegawa, Hidenao, Tsukada, Hirofumi, Kawabata, Hitoshi, Chikuchi, Yuki, Takaku, Yuichi, Hisamatsu, Shun'ichi

“…Direct deposition of radioactive material onto crops is one important pathway for safety assessment of radionuclides released from nuclear facilities. Foliar…”
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Improvement of Analytical Sensitivity by Ar-N2 Inductively Coupled Plasma in Axially Viewing Optical Emission Spectrometry by OHATA, Masaki, TAKAKU, Yuichi, INAGAKI, Kazumi, HIOKI, Akiharu, CHIBA, Koichi

“…The analytical sensitivities of elements were improved by Ar-N2 inductively coupled plasma (Ar-N2 ICP) in axially viewing optical emission spectrometry (OES)…”
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Chemical form of volatilized iodine obtained from orchard grass ( Dactylis glomerata L.) by Yanai, Masumi, Kawabata, Hitoshi, Takaku, Yuichi

“…Japan’s first commercial nuclear fuel reprocessing plant is expected to release radioiodine into the atmosphere, and orchard grass plants grown in the vicinity…”
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Errata: Improvement of Analytical Sensitivity by Ar-N2 Inductively Coupled Plasma in Axially Viewing Optical Emission Spectrometry [Anal. Sci., Vol. 25, p. 161 (2009)] by OHATA, Masaki, TAKAKU, Yuichi, INAGAKI, Kazumi, HIOKI, Akiharu, CHIBA, Koichi

“…In the process of preparing the above article, some graphics were incorrectly printed in the book form. The corrected article is reprinted on the following…”
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Erratum: Improvement of Analytical Sensitivity by Ar–N2 Inductively Coupled Plasma in Axially Viewing Optical Emission Spectrometry by Ohata, Masaki, Takaku, Yuichi, Inagaki, Kazumi, Hioki, Akiharu, Chiba, Koichi

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Extractability of major and trace elements from agricultural soils using chemical extraction methods: Application for phytoavailability assessment by Takeda, A.(Aomori-ken. Inst. for Environmental Sciences, Rokkasho (Japan)), Tsukada, H, Takaku, Y, Hisamatsu, S, Inaba, J, Nanzyo, M

“…To assess soil-to-plant transfer of various elements more precisely, the concentrations of the elements extracted from soil samples using eight chemical…”
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Rapid Method for the Analysis of Plutonium Isotopes in a Soil Sample within 60 min by OHTSUKA, Yoshihito, TAKAKU, Yuichi, NISHIMURA, Koichi, KIMURA, Jyoji, HISAMATSU, Shun'ichi, INABA, Jiro

“…A rapid method for the determination of Pu isotopes in a soil sample within 60 min of starting sample pretreatment was developed. The large reduction in the…”
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