Search Results - "Takahashi, Kenshi"

Separation of copper and polyvinyl chloride from thin waste electric cables: A combined PVC-swelling and centrifugal approach by Xu, Jing, Kumagai, Shogo, Kameda, Tomohito, Saito, Yuko, Takahashi, Kenshi, Hayashi, Hiroshi, Yoshioka, Toshiaki

“…[Display omitted] •High-purity Cu and PVC were simultaneously recycled from thin electric cables.•PVC swelling and centrifugal action were combined to separate…”
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Validation of a deplasticizer–ball milling method for separating Cu and PVC from thin electric cables: A simulation and experimental approach by Xu, Jing, Lu, Jiaqi, Kumagai, Shogo, Kameda, Tomohito, Saito, Yuko, Takahashi, Kenshi, Hayashi, Hiroshi, Yoshioka, Toshiaki

“…[Display omitted] •>99.9% purity Cu and PVC were separated from de-plasticized cables by ball milling.•The effects of rotation speed and ball & cable size on…”
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Controlling Factors of Seasonal Variation of Stem Methane Emissions From Alnus japonica in a Riparian Wetland of a Temperate Forest by Sakabe, Ayaka, Takahashi, Kenshi, Azuma, Wakana, Itoh, Masayuki, Tateishi, Makiko, Kosugi, Yoshiko

“…Tree‐mediated methane (CH4) emissions represent an uncertain pathway of the total CH4 flux released from forested ecosystems. We measured the stem CH4 fluxes…”
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Methane uptake in a temperate forest soil using continuous closed-chamber measurements by Ueyama, Masahito, Takeuchi, Ryota, Takahashi, Yoshiyuki, Ide, Reiko, Ataka, Mioko, Kosugi, Yoshiko, Takahashi, Kenshi, Saigusa, Nobuko

“…•CH4 fluxes were continuously measured using dynamic closed chambers at a temperate forest.•The forest acted as an annual CH4 sink.•CH4 uptake increased with…”
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Exploring sub-daily to seasonal variations in methane exchange in a single-crop rice paddy in central Japan by Iwata, Hiroki, Mano, Masayoshi, Ono, Keisuke, Tokida, Takeshi, Kawazoe, Takahiro, Kosugi, Yoshiko, Sakabe, Ayaka, Takahashi, Kenshi, Miyata, Akira

“…Season-long methane (CH4) exchange was observed in a rice paddy field in central Japan (Kanto Region) using the eddy covariance technique to clarify the…”
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Cross-Validation of Open-Path and Closed-Path Eddy-Covariance Techniques for Observing Methane Fluxes by Iwata, Hiroki, Kosugi, Yoshiko, Ono, Keisuke, Mano, Masayoshi, Sakabe, Ayaka, Miyata, Akira, Takahashi, Kenshi

“…Methane ( CH 4 ) fluxes observed with the eddy-covariance technique using an open-path CH 4 analyzer and a closed-path CH 4 analyzer in a rice paddy field were…”
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Vertical profiles of methane concentration above and within the canopy of a temperate Japanese cypress forest by Takahashi, Kenshi, Sakabe, Ayaka, Kanazawa, Akito, Kosugi, Yoshiko

“…Methane (CH4) is one of the major greenhouse gases, and therefore its source identification and quantification are quite important. So far water-unsaturated…”
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Automated closed-chamber measurements of methane fluxes from intact leaves and trunk of Japanese cypress by Takahashi, Kenshi, Kosugi, Yoshiko, Kanazawa, Akito, Sakabe, Ayaka

“…Continuous in situ measurements of methane (CH4) fluxes from intact leaves and trunk of Japanese cypress (Chamaecyparis obtusa Sieb. et Zucc) were conducted in…”
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Comparison of laser-induced fluorescence and chemiluminescence measurements of NO₂ at an urban site by Suzuki, Hiroyuki, Miyao, Yuka, Nakayama, Tomoki, Pearce, Julie K, Matsumi, Yutaka, Takahashi, Kenshi, Kita, Kazuyuki, Tonokura, Kenichi

“…In situ measurements of nitrogen dioxide (NO₂) concentrations were conducted at an urban site in Tokyo (35°71′N, 139°76′E), Japan during the summers of…”
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High-precision measurements of the methane flux over a larch forest based on a hyperbolic relaxed eddy accumulation method using a laser spectrometer by Ueyama, Masahito, Takai, Yuriko, Takahashi, Yoshiyuki, Ide, Reiko, Hamotani, Ken, Kosugi, Yoshiko, Takahashi, Kenshi, Saigusa, Nobuko

“…•We measured CH4 flux at a forest canopy by a HREA method with laser-based analyzer.•The observed annual methane sink was 673–868mg CH4m−2yr−1.•The precision…”
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SMILES observations of mesospheric ozone during the solar eclipse by Imai, Koji, Imamura, Takashi, Takahashi, Kenshi, Akiyoshi, Hideharu, Yamashita, Yousuke, Suzuki, Makoto, Ebisawa, Ken, Shiotani, Masato

“…The Superconducting Submillimeter‐Wave Limb‐Emission Sounder (SMILES) successfully observed vertical distributions of ozone (O3) concentration in the middle…”
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Impacts of riparian wetlands on the seasonal variations of watershed‐scale methane budget in a temperate monsoonal forest by Sakabe, Ayaka, Kosugi, Yoshiko, Okumi, Chika, Itoh, Masayuki, Takahashi, Kenshi

“…Forest soils are considered a methane (CH4) sink because dry soils can oxidize CH4; however, previous studies on CH4 fluxes in humid temperate forests…”
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Kinetics and Mechanism of Chlorine-Atom-Initiated Oxidation of Allyl Alcohol, 3-Buten-2-ol, and 2-Methyl-3-buten-2-ol by Takahashi, Kenshi, Xing, Jia-Hua, Hurley, Michael D, Wallington, Timothy J

“…The gas-phase reactions of Cl atoms with allyl alcohol (k 1), 3-buten-2-ol (k 2), and 2-methyl-3-buten-2-ol (k 3) at 296 ± 2 K have been investigated using…”
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Quantum Yields for Cl(2P j ) Atom Formation from the Photolysis of Chlorofluorocarbons and Chlorinated Hydrocarbons at 193.3 nm by Taketani, Fumikazu, Takahashi, Kenshi, Matsumi, Yutaka

“…Cl(2P3/2) and Cl*(2P1/2) atoms produced from the photodissociation of chlorofluorocarbons (CFCs) and chlorinated hydrocarbons at 193.3 nm have been detected…”
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Ion Formation Processes in Laser Ablation of Multicomponent Inorganic Particles Relevant to Single Particle Laser Analysis of Atmospheric Aerosols by Yabushita, Akihiro, Kinugawa, Takashi, Narukawa, Masahiro, Takahashi, Kenshi, Kawasaki, Masahiro, Matsumi, Yutaka

“…Nanosecond laser ablation and subsequent ion formation processes of submicron aerosol particles containing multicomponent ammonium and sodium salts relevant to…”
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Ultraviolet Spectroscopy and Theoretical Calculations of Mono- and Dihydrated Clusters of the Guanine Nucleosides: Possibility of Different Hydration Structures for Guanosine and 2′-Deoxyguanosine by Saigusa, Hiroyuki, Mizuno, Nobuteru, Asami, Hiroya, Takahashi, Kenshi, Tachikawa, Masanori

“…Mono- and dihydrated clusters of guanosine (Gs) and 2′-deoxyguanosine (2′-dGs) are formed by laser desorption combined with supersonic-jet cooling, and their…”
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Temporal and spatial variations in NO2 fluxes by tall tower eddy covariance measurements over a dense urban center in Sakai, Japan by Okamura, Sana, Ueyama, Masahito, Takahashi, Kenshi

“…The temporal and spatial variations in nitrogen dioxide (NO2) fluxes in a city are vital for understanding the magnitude of emissions, their attributes, and…”
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Measurements of Ammonium and Sodium salt Aerosol Particles Using a Laser-ionization Single-particle Aerosol Mass Spectrometer by Narukawa, Masahiro, Matsumi, Yutaka, Takahashi, Kenshi, Yabushita, Akihiro

“…Using a laser-ionization single-particle aerosol mass spectrometer (LISPA-MS), mass spectra of ammonium and sodium salt particles were obtained. In the…”
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Characterization of Aerosol Particles in the Tokyo Metropolitan Area using Two Different Particle Mass Spectrometers by Xing, Jia-Hua, Takahashi, Kenshi, Yabushita, Akihiro, Kinugawa, Takashi, Nakayama, Tomoki, Matsumi, Yutaka, Tonokura, Kenichi, Takami, Akinori, Imamura, Takashi, Sato, Kei, Kawasaki, Masahiro, Hikida, Toshihide, Shimono, Akio

“…Particle mass spectrometers of two types-a time-of-flight aerosol mass spectrometer (AMS) of Aerodyne Research Inc. and a laser desorption/ionization single…”
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Scavenging of pollutant acid substances by Asian mineral dust particles by Matsumoto, Jun, Takahashi, Kenshi, Matsumi, Yutaka, Yabushita, Akihiro, Shimizu, Atsushi, Matsui, Ichiro, Sugimoto, Nobuo

“…Uptakes of sulfate and nitrate onto Asian dust particles during transport from the Asian continent to the Pacific Ocean were analyzed by using a…”
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