Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Osamu Sekiguchi"'
Autor:
Einar Uggerud, Unni Olsbye, Magnus Mortén, Osamu Sekiguchi, Marius Westgård Erichsen, Stian Svelle
Publikováno v:
ChemCatChem. 7:4143-4147
The de-alkylation of polymethylbenzenes is a key step in the zeolite-catalysed methanol to hydrocarbons (MTH) reaction. As the accumulation of hydrocarbons in the zeolite pores commonly leads to numerous parallel reactions even at low conversions, th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29162a636c1f3ea11e6bf99571852a8e
https://doi.org/10.1002/cctc.201500793
https://doi.org/10.1002/cctc.201500793
Publikováno v:
Journal of the American Chemical Society. 133:20816-20822
We report the unimolecular decomposition of protonated glyceraldehyde, [HOCH(2)CH(OH)CHO]H(+), and protonated dihydroxyacetone, [HOCH(2)C(O)CH(2)OH]H(+). On the basis of mass spectrometric experiments and computational quantum chemistry, we have foun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4efa32abbdf0786f4e61e82b4562e4b
https://doi.org/10.1021/ja206600w
https://doi.org/10.1021/ja206600w
Publikováno v:
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B. 77:1620-1629
Influence of interaction with a tangential lean blade and a box type casing on blade passing frequency (BPF) noise level in small axial-flow fans was investigated by measurement and computational fluid dynamics (CFD). Noise level of five fans having
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::472bb98748f1e1ba0b42eb2e9592a1a2
https://doi.org/10.1299/kikaib.77.1620
https://doi.org/10.1299/kikaib.77.1620
Publikováno v:
European Journal of Mass Spectrometry. 15:167-181
We report the unimolecular decomposition following collisional activation of protonated mono-, di- and trimethylbenzenes as a function of collision energy. The resulting energy-resolved mass spectra are then used for the quality control of high-level
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f3ce6011e8890da78e998805ac3d0aad
https://doi.org/10.1255/ejms.953
https://doi.org/10.1255/ejms.953
Publikováno v:
Japanese Journal of Crop Science. 78:95-99
速効性肥料を用いた耕起側条施肥栽培(以下, 標準栽培)と, 肥効調節型肥料(CAF), 品種の草型, 栽植密度などの栽培条件およびCAFを用いた不耕起移植栽培における欠株が, 水稲の生育と収量
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ab09b1535330430459c6ee4bfc52d7e
https://doi.org/10.1626/jcs.78.95
https://doi.org/10.1626/jcs.78.95
Autor:
Masaaki Mishima, Karl Kütt, Ivo Leito, Jaan Saame, Karl Kaupmees, Ilmar A. Koppel, Einar Uggerud, José-Luis M. Abboud, Osamu Sekiguchi, Ivar Koppel
Publikováno v:
Chemistry (Weinheim an der Bergstrasse, Germany). 21(31)
Retinoic acid is of fundamental biological importance. Its acidity was determined in the gas phase and in acetonitrile solution by means of mass spectrometry and UV/Vis spectrophotometry, respectively. The intrinsic acidity is slightly higher than th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6724e8013254155e95d082a9be2928b5
https://pubmed.ncbi.nlm.nih.gov/26186282
https://pubmed.ncbi.nlm.nih.gov/26186282
Autor:
Masami Nanzyo, Naoko Sasaki, Tadashi Takahashi, Ikuko Akahane, Takashi Tashiro, Masahiko Saigusa, Osamu Sekiguchi
Publikováno v:
Soil Science and Plant Nutrition. 52:654-661
We examined the vertical distributions of total, Bray II and organic phosphorus (P) in the Ap horizons of five paddy rice fields including no tillage treatment. Soil samples were collected from the Ap horizons as nine thin layers of 0–1, 1–2, 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f9db78c0f25182bf57cd808966c0551
https://doi.org/10.1111/j.1747-0765.2006.00083.x
https://doi.org/10.1111/j.1747-0765.2006.00083.x
Autor:
Einar Uggerud, Helen Roberts, A. A. Viggiano, Travis D. Fridgen, Eric Herbst, Harald Møllendal, Osamu Sekiguchi, Anne Horn
Publikováno v:
The Astrophysical Journal. 611:605-614
Methyl formate, HCOOCH3, is a well-known interstellar molecule prominent in the spectra of hot molecular cores. The current view of its formation is that it occurs in the gas phase from precursor methanol, which is synthesized on the surfaces of grai
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18d04d7bda062a0b8d6252f89a9f4aae
https://doi.org/10.1086/422137
https://doi.org/10.1086/422137
Publikováno v:
International Journal of Mass Spectrometry. 222:1-9
Metastable C 2 H 4 FO + ions ( m / z 63) produced by electron ionization of 2-hydroxy-2-trifluoromethylpropanoic acid CH 3 C(CF 3 )(OH)COOH ( 1 ) decompose into CH 3 CO + ( m / z 43) and HF. The corresponding peak in the MIKE spectrum is composite wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d2285a134be98fd6e790fcb33b598c6
https://doi.org/10.1016/s1387-3806(02)00987-9
https://doi.org/10.1016/s1387-3806(02)00987-9
Publikováno v:
Journal of Mass Spectrometry. 37:299-304
The unimolecular metastable decompositions of trimethylsilylacetic acid, (CH3)3SiCH2COOH (1), and its methyl ester, (CH3)3SiCH2COOCH3 (2), were investigated by mass-analyzed ion kinetic energy (MIKE) spectrometry in conjunction with thermochemical da
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f027407bef5a4330b8100e9a29c2a16
https://doi.org/10.1002/jms.284
https://doi.org/10.1002/jms.284