Search Results - "Hirokawa, Jun"

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  1. 1

    Oligomerization Reaction of the Criegee Intermediate Leads to Secondary Organic Aerosol Formation in Ethylene Ozonolysis by Sakamoto, Yosuke, Inomata, Satoshi, Hirokawa, Jun

    “…Ethylene ozonolysis was investigated in laboratory experiments using a Teflon bag reactor. A negative ion chemical ionization mass spectrometer (NI-CIMS) using…”
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  2. 2

    The influence of electrocardiogram (ECG) filters on the heights of R and T waves in children by Hirokawa, Jun, Hitosugi, Takashi, Miki, Yoichiro, Tsukamoto, Masanori, Yamasaki, Fumiyasu, Kawakubo, Yoshifumi, Yokoyama, Takeshi

    Published in Scientific reports (02-08-2022)
    “…Anesthesiologists often compare intraoperative and preoperative electrocardiogram (ECG) waveforms in patients undergoing general anesthesia. In addition, many…”
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  3. 3

    Non-radioactive Chemical Ionization Mass Spectrometry Using Acetic Acid–Acetate Cluster as a Reagent Ion for the Real-time Measurement of Acids and Hydroperoxides by Inomata, Satoshi, Hirokawa, Jun

    Published in Chemistry letters (01-01-2017)
    “…We have developed a non-radioactive chemical ionization mass spectrometry method using acetic acid–acetate cluster as the reagent ion. By electron impact onto…”
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  4. 4

    Characteristic of mode I fatigue crack propagation of CFRP laminates toughened with CNF interlayer by Arai, Masahiro, Hirokawa, Jun-ichi, Hanamura, Yota, Ito, Hiroaki, Hojo, Masaki, Quaresimin, Marino

    Published in Composites. Part B, Engineering (01-10-2014)
    “…In the present study the effect of carbon nanofiber interlayers on the fatigue crack propagation of woven fabric CFRP laminates made by VaRTM is investigated…”
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  5. 5

    Kinetics Study of OH Uptake onto Deliquesced NaCl Particles by Combining Laser Photolysis and Laser-Induced Fluorescence by Sakamoto, Yosuke, Zhou, Jun, Kohno, Nanase, Nakagawa, Maho, Hirokawa, Jun, Kajii, Yoshizumi

    Published in The journal of physical chemistry letters (19-07-2018)
    “…Despite the role of hydroxyl radical (OH) uptake onto sea-salt particles as a daytime chlorine source, affecting the chemical processes in the marine boundary…”
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  6. 6

    Analysis of secondary organic aerosols from ozonolysis of isoprene by proton transfer reaction mass spectrometry by Inomata, Satoshi, Sato, Kei, Hirokawa, Jun, Sakamoto, Yosuke, Tanimoto, Hiroshi, Okumura, Motonori, Tohno, Susumu, Imamura, Takashi

    Published in Atmospheric environment (1994) (01-11-2014)
    “…To understand the mechanism of formation of the secondary organic aerosols (SOAs) produced by the ozonolysis of isoprene, proton transfer reaction mass…”
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    Retained Foreign Body in the Nasal Cavity After Oral Maxillofacial Surgery by Tsukamoto, Masanori, Hirokawa, Jun, Yokoyama, Takeshi

    Published in Anesthesia progress (01-01-2018)
    “…Retained foreign bodies sometimes occur in various surgical procedures and can lead to severe complications. Foreign bodies in the oral and maxillofacial…”
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  10. 10

    Sedative effects of oral pregabalin premedication on intravenous sedation using propofol target-controlled infusion by Karube, Noriko, Ito, Shinichi, Sako, Saori, Hirokawa, Jun, Yokoyama, Takeshi

    Published in Journal of anesthesia (01-08-2017)
    “…Purpose The sedative effects of pregabalin during perioperative period have not been sufficiently characterized. The aim of this study was to verify the…”
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  11. 11

    Dialdehyde Production during Direct Dissociation of Energy-rich Criegee Intermediates Produced by Ozonolysis of Cycloalkenes by A Brown, Phil, Inomata, Satoshi, Tanimoto, Hiroshi, Sato, Kei, Sakamoto, Yosuke, Yajima, Ryoji, Hirokawa, Jun

    Published in Chemistry letters (05-08-2016)
    “…A potential direct dissociation pathway is suggested through oxygen atom release from the energy-rich Criegee intermediate produced from ozonolysis of…”
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  12. 12

    Effectiveness of preanesthetic administration of gabapentin on sedative action during intravenous sedation with propofol by Hosokawa, Rumiko, Ito, Shinichi, Hirokawa, Jun, Oshima, Yu, Yokoyama, Takeshi

    Published in Journal of anesthesia (01-12-2018)
    “…Purpose There are no sufficient evidences for the sedative effect of gabapentin during anesthesia, especially intravenous sedation (IVS). The purpose of this…”
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  13. 13

    Ozone depletion in the interstitial air of the seasonal snowpack in northern Japan by Nakayama, Momoko, Zhu, Chunmao, Hirokawa, Jun, Irino, Tomohisa, Yoshikawa-Inoue, Hisayuki

    “…To examine the behaviour of ozone (O 3 ) in the seasonal snowpack, measurements were taken of O 3 and CO 2 in the interstitial air on Rishiri Island, which is…”
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  14. 14

    In Situ Measurements of Atmospheric Nitrous Acid by Chemical Ionization Mass Spectrometry Using Chloride Ion Transfer Reactions by Hirokawa, Jun, Kato, Takehiro, Mafuné, Fumitaka

    Published in Analytical chemistry (Washington) (15-10-2009)
    “…Recently, chemical ionization mass spectrometry (CIMS) has been widely applied to the in situ measurements of atmospheric trace species. In this article, we…”
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  15. 15

    Uptake of Gas-Phase Nitrous Acid by pH-Controlled Aqueous Solution Studied by a Wetted Wall Flow Tube by Hirokawa, Jun, Kato, Takehiro, Mafuné, Fumitaka

    “…Uptake kinetics of gas phase nitrous acid (HONO) by a pH-controlled aqueous solution was investigated by using a wetted wall flow tube. The gas phase…”
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  16. 16

    The atmospheric impact of boreal forest fires in far eastern Siberia on the seasonal variation of carbon monoxide: Observations at Rishiri, A northern remote island in Japan by Tanimoto, Hiroshi, Kajii, Yoshizumi, Hirokawa, Jun, Akimoto, Hajime, Minko, Nikolay P.

    Published in Geophysical research letters (15-12-2000)
    “…Observations of carbon monoxide (CO) and ozone (O3) at the surface have been made at Rishiri, a northern remote island in Japan. O3 seasonal variation shows a…”
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  17. 17

    Influence of regional-scale anthropogenic activity in northeast Asia on seasonal variations of surface ozone and carbon monoxide observed at Oki, Japan by Pochanart, Pakpong, Hirokawa, Jun, Kajii, Yoshizumi, Akimoto, Hajime, Nakao, Makoto

    Published in Journal of Geophysical Research (20-02-1999)
    “…Surface O3 and CO measurements were carried out at Oki, Japan during March 1994 to February 1996 in order to elucidate the processes determining temporal…”
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  18. 18

    Successful Premedication With Sublingual Midazolam Using a Suction Toothbrush by Hirokawa, Jun, Kimata, Naomi

    Published in Anesthesia progress (01-06-2023)
    “…Premedication is often used to reduce the stress associated with anesthesia-related procedures. However, in some cases, patients may not cooperate with…”
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  19. 19

    A novel discharge source of hydronium ions for proton transfer reaction ionization: design, characterization, and performance by Inomata, Satoshi, Tanimoto, Hiroshi, Aoki, Nobuyuki, Hirokawa, Jun, Sadanaga, Yasuhiro

    Published in Rapid communications in mass spectrometry (30-03-2006)
    “…A novel ion source based on direct current (d.c.) discharge has been developed for proton transfer reaction ionization operated at relatively high ion drift…”
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  20. 20

    Anesthetic management of a patient with osteogenesis imperfecta combined with mandibular defect by Tsukamoto, Masanori, Hirokawa, Jun, Sako, Saori, Fujiwara, Shigeki, Yokoyama, Takeshi

    “…Osteogenesis imperfecta (OI) is a rare hereditary disorder characterized by an excessive tendency to bone fractures and retarded growth. We report an…”
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