Search Results 1-20 of 1702

  • Improvement of Propylene Epoxidation Caused by Silver Plasmon Excitation by UV-LED Irradiation on a Sodium-Modified Silver Catalyst Supported on Strontium Carbonate

    Sugiyama Shigeru , Okitsu Ikumi , Hashimoto Kazuki , Maki Yutaro , Shimoda Naohiro , Furube Akihiro , Kato Yuki , Ninomiya Wataru

    … The effect that UV-LED irradiation exerted on a sodium-modified silver catalyst supported on strontium carbonate (Ag-Na/SrCO3) was examined during an epoxidation of propylene to propylene oxide. … The numbers in parentheses refer to the weight percentage of silver and sodium. …

    Catalysts 11(3), 398, 2021-03-21


  • Improvement of Electrochemical Stability Using the Eutectic Composition of a Ternary Molten Salt System for Highly Concentrated Electrolytes for Na-Ion Batteries

    Hwang Jinkwang , Sivasengaran Nair Ashvini , Yang Huan , Yamamoto Hiroki , Takeuchi Takashi , Matsumoto Kazuhiko , Hagiwara Rika

    … The ternary salt system achieved concentrations of 5.0 m (m = mol kg⁻¹) with propylene carbonate (PC), 2.9 m with dimethoxyethane, 2.0 m with ethylene carbonate/dimethyl carbonate, and 3.9 m with ethylene carbonate/diethyl carbonate. …

    ACS Applied Materials & Interfaces 13(2), 2538-2546, 2021-01-20



    KAWAAI Keiyu , IDE Masahiko

    <p>本研究ではアルギン酸ナトリウムと枯草菌から構成されるバイオ補修材の自己・自律治癒性状に与える種々の影響要因について検討を行った。本研究により、フライアッシュ混和によるセメント水和物量の相違、中性化の有無による細孔構造の変状により、補修後のひび割れ近傍の水酸化カルシウムの分布状況は変動し自己・自律治癒性状に影響することがわかった。特に、中性化後のフライアッシュ配合では水酸化カルシウ …

    Cement Science and Concrete Technology 74(1), 294-301, 2021


  • Evaluation on a Simultaneous Analytical Method of Pesticide Residues in Limes  [in Japanese]

    Yamaki Yumiko , Hashimoto Tsuneo , Otsuka Kenji , Tomizawa Sanae , Masubuchi Tamako , Kamijo Kyoko , Nakajima Takayuki , Yoshikawa Soichi , Hasegawa Emi , Kokaji Yoshie , Watanabe Shui

    <p>ライムのLC-MS/MSを用いた191成分の残留農薬を対象とした一斉分析法を開発し,妥当性評価を行った.試料から農薬をアセトニトリルで抽出し,無水硫酸マグネシウム,炭酸ナトリウムおよび塩化ナトリウムを加え塩析・脱水処理を行った.遠心分離を行い,上層を分取しアセトニトリルで定容した.続いて一定量をC18/GC/PSA固相カラムに負荷して精製を行い,LC-MS/MSにて測定した.従来 …

    Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) 62(1), 33-36, 2021


  • Decelerated epigenetic aging associated with mood stabilizers in the blood of patients with bipolar disorder

    Okazaki Satoshi , Numata Shusuke , Otsuka Ikuo , Horai Tadasu , Kinoshita Makoto , Sora Ichiro , Ohmori Tetsuro , Hishimoto Akitoyo

    … Further, there was a significant decrease in Horvath EAA and IEAA in patients with BD taking medication combinations of mood stabilizers (including lithium carbonate, sodium valproate, and carbamazepine) than in those taking no medication/monotherapy. …

    Translational Psychiatry 10(1), 129, 2020-05-04


  • Comparative analysis of borate fusion versus sodium carbonate extraction for quantification of silicon contents in plants

    Nakamura Ryosuke , Cornelis Jean-Thomas , de Tombeur Felix , Nakagawa Michiko , Kitajima Kaoru

    Journal of plant research 133(2), 271-277, 2020-03


    PHOMMAHAXAY Palamy , IOROI Saya , HATANAKA Shigemitsu

    … while sodium hydroxide solution, potassium hydroxide solution, water glass, sodium carbonate solution and potassium carbonate solution are used as alkaline solution.</p><p> According to previous studies, GP can exhibit the same level of compressive strength compared to that of concrete made from ordinary Portland cement. …

    Journal of Structural and Construction Engineering (Transactions of AIJ) (769), 321-330, 2020-03


  • Prodution of porous sodium carbonate for dry-scrubbing of MSWI flue gas by vacuum thermal treatment of sodium bicarbonate  [in Japanese]

    Hwang In-Hee , Matsuo Takayuki , Tojo Yasumasa , Matsuto Toshihiko , Masuda Kengo

    <p>重曹は,ごみ焼却排ガス中の塩化水素および硫黄酸化物の乾式処理に用いられる代表的なアルカリ剤である。しかし,反応効率を上げる目的で行われている重曹の微粉化は,貯留槽内での架橋発生を抑制するための添加薬剤の使用等によるコスト増加の原因となり,重曹利用の妨げとなっている。本研究では,重曹を微粉化せず,真空加熱処理を行うことであらかじめ多孔質化したソーダ灰を製造し,酸性ガス処理に用いる方 …

    Proceedings of the Annual Conference of Japan Society of Material Cycles and Waste Management 31(0), 271, 2020


  • Neutral Sulfite Semi–Chemical Pulping of Moso–Bamboo

    Do Vu Thang , Tanifuji Keishi , Jin Guangfan , Ohi Hiroshi

    … Cooking liquor contained a mixture of sodium sulfite (Na<sub>2</sub>SO<sub>3</sub>) and sodium carbonate (Na<sub>2</sub>CO<sub>3</sub>) with a weight ratio of 2 to 1. …

    JAPAN TAPPI JOURNAL 74(4), 379-387, 2020


  • Case study about development of a novel spray-type adhesion barrier system  [in Japanese]

    ISHIHARA Hiroyuki , NIIMI Taishi , CHINO Naotaka , KAI Miho , SOMA Yuki , WATANABE Eiji , KAWANISHI Tetsuro

    … Our novel hydrogel is composed of Powder A, which mainly contains N-hydroxysuccinimide-modified carboxymethyl dextrin and trehalose as a stabilizing agent, and Powder B, which is composed of sodium carbonate and sodium hydrogen carbonate. …

    PDA Journal of GMP and Validation in Japan 22(1), 6-11, 2020

    J-STAGE  Ichushi Web 

  • Development of Separation Process of Soluble Nutrients from Synthetic Dairy Slurry by Modified Solvay Process

    FUJIOKA Minami , ITO Ryusei

    … Therefore, the solid fertilizers production process (SFPP) from dairy slurry is proposed to produce ammonium sulfate and potassium chloride as fertilizers, and sodium hydrogen carbonate as a by-product. … The objectives of this research are 1) to investigate the effect of temperature on sodium hydrogen carbonate precipitation and 2) to confirm the principle of separated precipitation of sodium and potassium. …

    Sanitation Value Chain 4(1), 17-26, 2020

    IR  J-STAGE 


    川頼 紘太 , 高橋 義人 , 小鷹 博人 , 秋田 和利 , 土屋 邦洋 , 石田 健一郎 , 山田 徹 , 谷口 光宏

    … Oral administration of sodium hydrogen carbonate was initiated to alkalize the urine, and treatment with transurethral lithotripsy (TUL) was scheduled. …

    泌尿器科紀要 = Acta urologica Japonica 65(7), 283-285, 2019-07

    IR  DOI  Ichushi Web 

  • Synthesis of meso-Alkyl-Substituted Norcorrole–Ni^II Complexes and Conversion to 5-Oxaporphyrins (

    Liu Si‐Yu , Tanaka Hiroko , Nozawa Ryo , Fukui Norihito , Shinokubo Hiroshi

    … Furthermore, we found that oxidation of Ni^II–meso‐dialkylnorcorroles with hydrogen peroxide in the presence of sodium carbonate gave Ni^II–5‐oxaporphyrins( …

    Chemistry – A European Journal 25(32), 7618-7622, 2019-06-07


  • The effect of alkaline materials on the motion of a bubble rising in a hydrophobically modified alkali-soluble emulsion polymer solution  [in Japanese]

    MIYAKE Ryoya , OHTA Mitsuhiro , IWATA Shuichi

    … In this study, HASE material is neutralized with sodium carbonate (Na2Co3) and with sodium hydroxide (NaOH), and HASE solutions with almost the same rheological properties are prepared. …

    The Proceedings of the Fluids engineering conference 2019(0), OS7-13, 2019


  • A new synthesis method for surface area enlarged precipitation catalyst  [in Japanese]

    Saima Hitoshi , Kon Tatsuya , Todaka Masatoshi , Kadota Kodai , Kai Seiya , Mogi Yasuhiro

    <p>銅ー亜鉛−アルミナ触媒は、金属塩水溶液と炭酸ナトリウム水溶液を混合することにより合成されてきた。しかし、その比表面積は100m<sup>2</sup>/g以下にとどまっている。我々は、塩基としてアンモニアガスを用い、気−液界面の微小領域において金属塩水溶液と反応させることにより、微細な沈殿触媒を得ることに成功した。この結果、新規合成法による銅ー亜鉛−アルミ …

    Proceeding of Annual/Fall Meetings of the Japan Petroleum Institute 2019f(0), 99, 2019


  • <b>Advanced Polymorph Control of Calcium Carbonates based on Structural Properties of Amine</b>

    Yoo Yunsung , Kang Dongwoo , Kim Injun , Park Jinwon

    … Thus, it can be widely utilized in inorganic CCU processes in which the target metal carbonates are calcium carbonate, magnesium carbonate, sodium bicarbonate, and sodium carbonate, respectively. …

    Proceedings of the Annual Conference of Japan Society of Material Cycles and Waste Management 30(0), 575, 2019


  • <b>Phosphorus Recovery from Incinerated Ash of Sewage Sludge </b> <b>by Heat Treatment</b>  [in Japanese]

    Takahashi Masaaki , Takemoto Yukimasa , Iwasaki Seiji , Yuuki Eiji

    <p>下水汚泥焼却灰からNaOHなどのアルカリを用いる場合、リンの抽出率が低いことが問題となっている。アルカリを用いた場合、処理温度を上げることによって、リン抽出率が向上することを見出した。そこで、下水汚泥焼却灰にNaOHあるいはNa<sub>2</sub>CO<sub>3</sub>を加え、750℃〜900℃で焼成し、焼却物から水洗によ …

    Proceedings of the Annual Conference of Japan Society of Material Cycles and Waste Management 30(0), 215, 2019


  • Evaluation of <i>In-situ</i> Reservoir Blocking by Sodium Carbonate Gel Formed from Sodium Metasilicate Solution and Injected CO<sub>2</sub> for CO<sub>2</sub> Sequestration

    CHEA Samneang , SASAKI Kyuro , NGUELE Ronald , SUGAI Yuichi

    <p>不均一あるいはき裂卓越型の貯留層における水攻法適用後のチャネリングフローやCO<sub>2</sub>が貯留されている帯水層からの漏えい流の防止は,採油増進回収およびCO<sub>2</sub>貯留プロジェクトの課題となっている。本論文では,メタケイ酸ナトリウム(S–MS)水溶液と溶解CO<sub>2</sub&g …

    Journal of the Japan Petroleum Institute 62(6), 309-318, 2019


  • Characterization and thermal decomposition of synthetic carbonate apatite powders prepared using different alkali metal salts

    MARUTA Michito , ARAHIRA Takaaki , TSURU Kanji , MATSUYA Shigeki

    … <p>Two types of synthetic carbonate apatite [potassium-containing carbonate apatite (CAK) and sodium-containing carbonate apatite (CANa)] were prepared and characterized by thermogravimetric analysis, X-ray diffraction analysis (XRD) and Fourier transform infrared spectroscopy. …

    Dental Materials Journal 38(5), 750-755, 2019

    J-STAGE  Ichushi Web 

  • Molecular Structural Characterization of High-molecular-weight Polycarbonates by Combining the On-plate Degradation Pretreatment and High-resolution MALDI-TOF-MS Measurements  [in Japanese]

    NAKAMURA Sayaka , FOUQUET Thierry , SATO Hiroaki

    <p>ポリカーボネート(PC)は,末端基の制御や共重合化により諸物性の向上が図られており,その化学構造解析は品質管理において非常に重要である.高分子量PCの化学構造をMALDI-TOF-MSで解析することは容易ではないため,著者らが高分子量ポリエステルの構造解析法として提案した「オンプレート分解法」を,PCの化学構造解析へと拡大することを試みた.水酸化ナトリウムのメタノール溶液を用いて …

    BUNSEKI KAGAKU 68(8), 615-622, 2019


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