Search Results 1-20 of 66

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  • Analytical methods, characterization, reactivity of humic substances  [in Japanese]

    Fujitake Nobuhide

    Japanese Journal of Soil Science and Plant Nutrition 91(5), 317-320, 2020

    J-STAGE 

  • Radionuclide uptake by colloidal and particulate humic acids obtained from 14 soils collected worldwide

    Lin Peng , Xu Chen , Xing Wei , Sun Luni , Kaplan Daniel I. , Fujitake Nobuhide , Yeager Chris M. , Schwehr Kathleen A. , Santschi Peter H.

    … In HA-groundwater slurry, Pb, Be, Fe and Pa bound strongly to particulate HA (>0.45 μm), supporting their application as tracers of soil erosion. … Th bound strongly to the colloidal HA (3 kDa-0.45 μm) and as such, would not be a good candidate as a tracer for monitoring soil erosion. …

    Scientific Reports (8), 4795, 2018-03-19

    IR 

  • Decay durability of heat-treated wood produced in supercritical carbon dioxide  [in Japanese]

    MATSUNAGA Masahiro , MATSUNAGA Hiroshi , ISHIKAWA Atsuko , KOBAYASHI Masahiko , KANBAYASHI Toru , KATAOKA Yutaka , KIGUCHI Makoto

    本研究では超臨界二酸化炭素中で熱処理した木材の耐朽性を評価した。実験試料は土中埋設試験にはスギ心材試片を,室内強制腐朽試験にはスギ辺材試片を用いた。試片を全乾または含水率11%に調整し,超臨界二酸化炭素中で熱処理を行った。そして,熱処理試片を二箇所の試験地に埋設し,5年間の質量変化を測定した。その結果,処理温度と処理時の含水率が高い熱処理試片ほど,腐朽による質量減少率は小さくなった。この結果から, …

    MOKUZAI HOZON (Wood Protection) 44(6), 357-366, 2018

    J-STAGE  JASI 

  • Improving the properties of dicalcium phosphate dihydrate (DCPD) powder by changing the morphology

    TOSHIMA Takeshi , SATO Yuki , TAKAMATSU Saori , TAFU Masamoto , TAMADA Kentaro , MORIOKA Yasuo

    … DCPD has various applications, such as treatment of wastewater and polluted soil. … Materials used for environmental purposes require not only appropriate chemical reactivity but also various powder properties to make them usable under various conditions. …

    Journal of the Ceramic Society of Japan 126(3), 202-207, 2018

    J-STAGE 

  • Applicability of Cement Stabilization Technique to the High Water Content Residue Generated from Treatment of Waste Slate Containing Non-Scattering Asbestos  [in Japanese]

    INUI Toru , SHINOHARA Satoshi , MOROTOMI Tetsunosuke , KATSUMI Takeshi , TAKAI Atsushi , MIZUNO Katsumi

    … This treatment process discharges high water content sludge, which is composed of fine-grained waste slate, as a residue, since slate boards are crushed and ground into fine particles under a wet condition to enhance the reactivity between a treatment agent and asbestos. … Testing results indicated that these characteristics of the liquefied stabilized sludge were consistent with those of typical high water content cement-stabilized soil, and <i>W/C</i> …

    Journal of the Society of Materials Science, Japan 67(1), 71-74, 2018

    J-STAGE 

  • Reactivity of dicalcium phosphate dihydrate (DCPD) with various fluoride compounds in polluted soil  [in Japanese]

    中田 沙紀 , 袋布 昌幹 , 萩野 芳章 , 高松 さおり , 豊嶋 剛司 , 山本 桂一郎

    地下水・土壌汚染とその防止対策に関する研究集会講演集 23, 30-32, 2017-11-09

  • Decomposition of Fatty Acid and Detergency Using a System Combining Horseradish Peroxidase and <i>p</i>-Iodophenol

    Morita Miyuki , Tani Michiko , Honjo Takuya

    … <p>The reactivity and detergency of a horseradish peroxidase reaction system with oleic acid, a non-hydrogen donor used as a soil component, were studied. …

    Journal of Oleo Science 66(7), 797-799, 2017

    J-STAGE 

  • STUDY OF SEDIMENTS STABILIZATION MECHANISM AND SOIL REACTIVITY BY GRANULATED COAL ASH UTILIZED TO COVERING MATERIAL IN SEDIMENTS WHERE SLUDGE DEPOSITED  [in Japanese]

    NAKAMOTO Kenji , NISHINA Haruki , MATSUO Toru , HINO Kazutoshi , HIBINO Tadashi

    … However, the material properties of GCA for soil reactivity and sediment stabilization have not been clarified. … Laboratory experiments were carried out to evaluate the soil reactivity (e.g. chemical properties, CEC, phosphate absorption coefficient) and sediments stabilization mechanism by GCA covering method. …

    Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 72(4), I_1027-I_1032, 2016

    J-STAGE 

  • Soil tillage properties in clayey upland fields after conversion from rice paddies and the effects of soil tilth on soybean (Glycine max) growth  [in Japanese]

    高橋 智紀

    … 第三に北陸地域のダイズ栽培においてしばしば問題となる過乾燥による発芽不良および初期生育時の湿害を軽減するために,それぞれ播種床の耕うん状態(soil tilth)と種子の吸水・発芽の関係,および畝立て栽培での窒素集積特性の解明を試みた。 …

    中央農業総合研究センター研究報告 (23), 23-84, 2015-02

    IR  DOI  JASI 

  • Reactions and Behavior Relevant to Chemical and Physical Properties of Various Veterinary Antibiotics in Soil

    Jeon Dae S. , Oh Taek-Keun , Park Misuk , Lee Dong S. , Lim You J. , Shin Ji S. , Song Seung G. , Kim Sung C. , Shinogi Yoshiyuki , Chung Doug Y.

    … Due to possible environmental risks by a potential for reaching the surface and groundwater environment through soil for veterinary antibiotics (VAs) to treat disease and protect the health of animals, understanding reactivity and behavior of VAs have been recognized as one of the emerging issues in soil environment. …

    九州大学大学院農学研究院紀要 59(2), 391-397, 2014-08-29

    IR 

  • Oxygen adaptation mechanism of anaerobic bacteria Microbial ecology under 0〜21% oxygen concentrations  [in Japanese]

    KAWASAKI Shinji , SUZUKI Ippei , NIIMURA Youichi

    酸素(O<sub>2</sub>)は大気中に21%存在し、水に溶けて地中深部にまで浸透する。地球上の気液相は常に対流しており、自然界で完全な無酸素環境が維持される生態系は稀である。故に、地球上に生息する全ての生物は、反応性に富むO<sub>2 </sub>に適応・進化し、今日を生きていると考えられる。古くから嫌気性菌は「O<sub>2 & …

    Japanese Journal of Lactic Acid Bacteria 24(2), 79-87, 2013-06-20

    J-STAGE  References (32)

  • Potential Utilization of Local Phosphate Rocks to Enhance Rice Production in Sub-Saharan Africa

    NAKAMURA Satoshi , FUKUDA Monrawee , NAGUMO Fujio , TOBITA Satoshi

    … Our review indicates that PR direct application in lowland rice resulted in high performance, regardless of the PR reactivity and the location investigated. … however, there is room for further improvement in predicting agronomic efficiencies in lowland rice cultivation, with consideration of the unique changes in soil condition such as the reduced condition that occurs in submerged paddy soils. …

    Japan Agricultural Research Quarterly: JARQ 47(4), 353-363, 2013

    J-STAGE 

  • Iodine screening of tomato, melon, ginger, ha-shoga, Japanese ginger and chestnut by applying an analytical method for bromine using wavelength-dispersive X-ray fluorescence spectrometry

    Tateishi Yukinari , Hashimoto Tsuneo , Ushiyama Keiko , Sakai Naoko , Yamaki Yumiko , Baba Itoko , Nagayama Toshihiro , Takano Ichiro

    ヨウ化メチルは、2009年9月にMRLが設定された燻蒸殺虫剤であり、臭化メチルとは農薬の一つとして類似の使われ方をされることから、その代替品として広く使用され、日本では食品衛生法により農産物中の残留量が厳しく規制されている。一方、臭化メチルは、日本では臭素としての残留量が規制されており、その監視に臭素の分析が行われている。そこで、この臭素の分析に併せ、ヨウ化メチルの残留を判断できれば、分析の効率化 …

    Japanese Journal of Food Chemistry and Safety 20(1), 66-73, 2013

    J-STAGE  References (35)

  • Fault Exposure at Ikeda, Munakata City, Fukuoka Prefecture  [in Japanese]

    NAKAMURA Yosuke , MIZUNO Kiyohide

    … Ikeda III Terrace, near the outcrop, is covered with a loamy soil and aqueous silt. … This outcrop overlaps with geologic boundary fault and there is reactivity along the scar of the geologic boundary fault between the Paleogene and Mesozoic basement rocks. …

    Journal of Geography (Chigaku Zasshi) 121(6), 1052-1062, 2012

    J-STAGE 

  • Control of The Reactivity of Calcium Phosphates : Eco-solution for Soil Pollution  [in Japanese]

    TAFU Masamoto

    Ceramics Japan 46(9), 723-726, 2011-09-01

    References (17)

  • A Study on Alkali-Silica Reactivity of Super Lightweight Aggregate Made of Yellow River Sedimentary Soil  [in Japanese]

    FUNAHASHI Masashi , TSURUTA Koji , SASAKI Takahiko , NIWA Junichiro

    黄河堆積土を原料とする高性能軽量骨材のアルカリシリカ反応性について検討した結果,骨材の表層部と内部で反応性に差が見られた。また,頁岩を原料とした従来の軽量骨材と高性能軽量骨材を使用したコンクリート試験体で,デンマーク法によるアルカリシリカ反応性判定試験を行った結果,いずれも有害な膨張は認められなかった。しかしながら,従来の軽量骨材ではモルタルと骨材の界面にアルカリシリカゲルの生成が認められたのに対 …

    Concrete Research and Technology 21(1), 49-61, 2010-01-25

    J-STAGE  References (18)

  • Characteristics of Quick Lime by Various Calcining Methods  [in Japanese]

    ISHIWATA Nobuyuki , ITO Hiroyasu

    … Fluorspar is convenient material for making flux as dropping of melting point of slag, a number of steel making plants didn't pay attention to the standards of lime but for chemical compound and reactivity. … But nowadays, because the solution of fluorine in soil is becoming serious, and the use of fluorspar has been restricted as flux. …

    Tetsu-to-Hagane 95(3), 188-198, 2009-03-01

    J-STAGE  References (23)

  • ROLE OF FLY ASH ON STRENGTH AND MICROSTRUCTURE DEVELOPMENT IN BLENDED CEMENT STABILIZED SILTY CLAY :

    HORPIBULSUK SUKSUN , RACHAN RUNGLAWAN , RAKSACHON YUTTANA

    … It is found from the microstructural and the strength test results that the reactivity of fly ash (pozzolanic reaction) is minimal, which is different from concrete technology. …

    Soil and foundation 49(1), 85-98, 2009

    NDL Digital Collections 

  • Reactivity with phosphate and phytotoxicity of hydroxyaluminosilicate ions synthesized by instantaneous mixing of aluminum chloride and sodium orthosilicate solutions

    NAKANISHI Ryosuke , WADA Shin-Ichiro

    Hydroxyaluminosilicate ions are important as precursors of imogolite in synthetic systems and as less toxic aluminum-bearing species in natural aquatic systems. Despite their importance, their structu …

    Soil Science and Plant Nutrition 53(5), 545-550, 2007-10-01

    References (19) Cited by (4)

  • Aluminum status of synthetic Al-humic substance complexes and their influence on plant root growth

    TAKAHASHI Tadashi , NANZYO Masami , HIRADATE Syuntaro

    … Aluminum (Al)-humus complexes are abundant in the A horizons of non-allophanic Andosols and contribute to the unique properties of volcanic ash soils, such as high reactivity with phosphate ions and a low bulk density. … These results indicate that in soils dominated by Al-humus complexes the Al released from the Al-humus complexes, as well as the exchangeable Al adsorbed by soil minerals, is definitely toxic to plant roots. …

    Soil Science and Plant Nutrition 53(2), 115-124, 2007-04-01

    References (39) Cited by (6)

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