Search Results - "Sugiyama, Masahito"

Detection of polymeric silicate in the pore water of freshwater lakes by Park, Ja Yeong, Sugiyama, Masahito, Sugahara, Shogo, Seike, Yasushi

“…Understanding the formation mechanisms of polymeric silicates is essential to the study of microbiology and biogeochemistry. It has implications for the growth…”
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Biogeochemical characteristics of the Hövsgöl–Ustilimsk water system in Mongolia and Russia: the effect of environmental factors on dissolved chemical components by Hosoda, Ko, Murata, Takahiro, Mochizuki, Akihito, Katano, Toshiya, Tanaka, Yuji, Mimura, Tetsuro, Mitamura, Osamu, Nakano, Shin-ichi, Sugiyama, Yuko, Satoh, Yasuhiro, Watanabe, Yasunori, Dulmaa, Ayuriin, Ayushsuren, Chananbaatar, Ganchimeg, Darmaa, Drucker, Valentin V., Fialkov, Vladimir A., Sugiyama, Masahito

“…The objective of this study is to clarify the biogeochemical characteristics of the Hövsgöl–Ustilimsk water system in Mongolia and Russia. For this purpose, we…”
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Distribution of trace elements and the influence of major-ion water chemistry in saline lakes by Mochizuki, Akihito, Murata, Takahiro, Hosoda, Ko, Dulmaa, Ayuriin, Ayushsuren, Chananbaatar, Ganchimeg, Darmaa, Drucker, Valentin V., Fialkov, Vladimir A., Depci, Tolga, Üner, Tijen, Oğhan, Fatih, Sugiyama, Masahito

“…Although the water chemistry in saline lakes can differ drastically due to subtle differences in inflowing water conditions, the concentrations, distributions,…”
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Distribution and supply mechanisms of high uranium concentration in the rivers of Okinawa Island, Japan by Mochizuki, Akihito, Hosoda, Ko, Sugiyama, Masahito

“…Uranium concentrations in the rivers of Okinawa Island, Japan were determined in this study. Most rivers in the southwestern area of the island showed high U…”
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Method for the preparation of artificial lake and river waters by Sugiyama, Masahito, Wu, Shiqin, Hosoda, Ko, Mochizuki, Akihito, Hori, Toshitaka

“…The preparation of artificial waters that exactly reflect the actual concentrations of major, minor, and nutrient constituents except for organic matters in…”
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Characteristic seasonal variation in dissolved uranium concentration induced by the change of lake water pH in Lake Biwa, Japan by Mochizuki, Akihito, Hosoda, Ko, Sugiyama, Masahito

“…Epilimnion-dominated profiles of dissolved uranium (U) have been observed during summer in an oxygenated Japanese lake, Lake Biwa, contrary to the commonly…”
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Distributions and geochemical behaviors of oxyanion-forming trace elements and uranium in the Hövsgöl–Baikal–Yenisei water system of Mongolia and Russia by Mochizuki, Akihito, Murata, Takahiro, Hosoda, Ko, Katano, Toshiya, Tanaka, Yuji, Mimura, Tetsuro, Mitamura, Osamu, Nakano, Shin-ichi, Okazaki, Yusuke, Sugiyama, Yuko, Satoh, Yasuhiro, Watanabe, Yasunori, Dulmaa, Ayuriin, Ayushsuren, Chananbaatar, Ganchimeg, Darmaa, Drucker, Valentin V., Fialkov, Vladimir A., Sugiyama, Masahito

“…We investigated the distributions and geochemical behaviors of two oxyanion-forming elements: vanadium (V) and molybdenum (Mo), and of uranium (U) in the…”
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Distribution of Particulate Nonylphenol in Lake Biwa, Japan by Yoshida, Hiroo, Kudari, Shunsuke, Hori, Toshitaka, Sugiyama, Masahito

“…The distribution and geochemical behavior of nonylphenol (NP) in suspended and settling particles were studied in Lake Biwa, Japan. The vertical distribution…”
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Atmospheric Phosphorus Deposition in Ashiu, Central Japan - Source Apportionment for the Estimation of True Input to a Terrestrial Ecosystem by Tsukuda, S, Sugiyama, M, Harita, Y, Nishimura, K

“…Atmospheric bulk depositions of soluble reactive phosphorus (SRP), soluble unreactive phosphorus (SUP), particulate inorganic phosphorus (PIP), particulate…”
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Release of Trace Oxyanions from Littoral Sediments and Suspended Particles Induced by pH Increase in the Epilimnion of Lakes by Harita, Yunosuke, Hori, Toshitaka, Sugiyama, Masahito

“…We measured the vertical distributions of dissolved vanadium (V), molybdenum (Mo), and tungsten (W) during a stratification period in Lakes Biwa, Ikeda, and…”
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Development of a knee joint assist suit with a velocity-based mechanical safety device (Transient response analysis of the safety device and experiments) by Tsubasa KANEDA, Yoshihiro KAI, Masahito SUGIYAMA, Kenichi SUGAWARA, Masayoshi TOMIZUKA

“…Safety is one of the most important issues in rehabilitation assist suits. We have proposed and developed a rehabilitation assist suit equipped with a…”
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Developing an understanding of dissolved organic matter dynamics in the giant Lake Baikal by ultrahigh resolution mass spectrometry by Sugiyama, Yuko, Hatcher, Patrick G, Sleighter, Rachel L, Suzuki, Tomoyo, Wada, Chizuru, Kumagai, Tetsu, Mitamura, Osamu, Katano, Toshiya, Nakano, Shin-ichi, Tanaka, Yuji, Drucker, Valentin V, Fialkov, Vladimir A, Sugiyama, Masahito

“…To elucidate the molecular characteristics of dissolved organic matter (DOM) in Lake Baikal, 3D excitation-emission matrix spectroscopy and Fourier transform…”
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Development of a knee joint assist suit with a velocity-based mechanical safety device (Frequency response analysis of the safety device and experiments) by Yoshihiro KAI, Keisuke IKEDA, Chihiro KUROSAWA, Masahito SUGIYAMA, Kenichi SUGAWARA, Masayoshi TOMIZUKA

“…Safety is a crucial issue in rehabilitation assist suits. We have proposed and developed a rehabilitation assist suit equipped with a velocity-based mechanical…”
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Development of a knee joint assist suit with hardware-based safety devices (Proposal and design of the assist suit) by Masahito SUGIYAMA, Keisuke IKEDA, Tsubasa KANEDA, Yoshihiro KAI, Masayoshi TOMIZUKA

“…When developing rehabilitation assist suits, safety consideration for patients is crucial. Computer-aided control techniques can improve their safety. However,…”
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Walking Instability in Constant Speed and Variable Speed Treadmill Walking Evaluated by the Maximum Lyapunov Exponent of Chaos Analysis by TSUCHIDA, Masayuki, YASUI, Takato, SUZUKI, Tomotaka, KUROSAWA, Chihiro, SUGIYAMA, Masahito, OTAKI, Shusuke, YAMAGUCHI, Kuroudo, KAI, Yoshihiro, SUGAWARA, Kenichi

“…[Purpose] We developed a variable-speed treadmill that could be controlled at any speed. The influence of walking tasks which involved continuously changing…”
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Sensitive Spectrophotometric Determination of Phosphate Using Silica-Gel Collectors by NAGAI, Masahiro, SUGIYAMA, Masahito, HORI, Toshitaka

“…Phosphate, 3 - 10 nmol, in 1 dm3 of natural-water samples was quantitatively collected along with 10 µmol of Fe(III) ion onto a silica-gel collector in the pH…”
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定速型および変速型トレッドミル歩行における歩行不安定性の比較: 最大リアプノフ指数を用いたカオス解析による評価 by 土田, 将之, 安井, 崇人, 鈴木, 智高, 黒澤, 千尋, 杉山, 将史, 大滝, 脩介, 山口, 蔵人, 甲斐, 義弘, 菅原, 憲一

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Geochemical behavior of trace elements in Lake Biwa by Sugiyama, Masahito, Hori, Toshitaka, Kihara, Sorin, Matsui, Masakazu

“…A monthly survey of dissolved concentrations of various trace elements was performed in Lake Biwa. Particulate concentrations of the elements were also…”
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Nutrient limitation of the primary production of phytoplankton in Lake Baikal by Satoh, Yasuhiro, Katano, Toshiya, Satoh, Takeshi, Mitamura, Osamu, Anbutsu, Kaori, Nakano, Shin-ichi, Ueno, Hiroyuki, Kihira, Masaki, Drucker, Valentin, Tanaka, Yuji, Mimura, Tetsuro, Watanabe, Yasunori, Sugiyama, Masahito

“…Nutrient limitation of the primary production of phytoplankton at some stations in southern and central Lake Baikal was studied by nutrient enrichment…”
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Environmental chemistry of rivers and lakes, part v: a comparative study of the chemical and physicochemical characteristics of organic carbon dissolved in river and lake waters by Sugiyama, Yuko, Sugiyama, Masahito, Hori, Toshitaka

“…To determine the chemical and physicochemical characteristics of dissolved organic carbon in the Ado River and the Yasu River, the main rivers flowing into…”
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