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In vivo NMR 体内核磁共振
Journal of the Spectroscopical Society of Japan Pub Date : 2006-10-15 DOI: 10.5111/BUNKOU.55.320
Jun Kikuchi, K. Akamine
{"title":"In vivo NMR","authors":"Jun Kikuchi, K. Akamine","doi":"10.5111/BUNKOU.55.320","DOIUrl":"https://doi.org/10.5111/BUNKOU.55.320","url":null,"abstract":"Non-invasive measurement is one of specific character of Nuclear Magnetic Resonance (NMR) especially in biological studies. Here, we review a variety of reported articles for (1) high-resolution solution NMR, (2) high-resolution Magic Angle Spinning (hr-MAS) and (3) Magnetic Resonance Imaging (MRI) in the intact biological systems. Furthermore, our preliminary investigations of these experiments for both non-labeled and uniformly 15N-labeled rice seeds are described. In addition to this, future perspectives of methodological advances of both NMR software and NMR hardware for the in vivo NMR studies are discussed.","PeriodicalId":199016,"journal":{"name":"Journal of the Spectroscopical Society of Japan","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133238402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
宇宙電波観測を用いた, 暗黒星雲コアにおける環状C3H2のオルト・パラ比と化学進化の相関に関する研究 利用宇宙电波观测，对暗星云核心中环状C3H2的高角比与化学进化的相关性进行研究
Journal of the Spectroscopical Society of Japan Pub Date : 2006-08-15 DOI: 10.5111/BUNKOU.55.239
勇介 森澤
{"title":"宇宙電波観測を用いた, 暗黒星雲コアにおける環状C3H2のオルト・パラ比と化学進化の相関に関する研究","authors":"勇介 森澤","doi":"10.5111/BUNKOU.55.239","DOIUrl":"https://doi.org/10.5111/BUNKOU.55.239","url":null,"abstract":"Ortho-to-para nuclear spin ratio of cyclopropenylidene (c-C3H2) in TMC-1 cores was investigated using the 45 m radio telescope at Nobeyama Radio Observatory. We have observed four ortho lines (JKaKc=212-101, 312-303, 321-312, and 330-321) and four para lines (J KaKc=202-111, 211-202, 220-211, and 322-313) of c-C3H2 in six cores in TMC-1. A statistical equilibrium analysis of the oserved intensities revealed clear correlation between the ortho-to-para ratio of c-C3H2 and chemical evolution of the molecular cloud; the ortho-to-para ratio in younger cores is less than 2, while that in older cores is close to the statistical ratio of 3. A simple chemical model calculation indicates that the correlation is ascribed to the conservation of nuclear spin angular moment in chemical reactions relevant to the production, destruction, and re-production of c-C3H2.","PeriodicalId":199016,"journal":{"name":"Journal of the Spectroscopical Society of Japan","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126593111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
周波数可変炭酸ガスレ-ザ-サイドバンド光源と飽和分光への応用 频率可变碳酸激光边带光源与饱和光谱的应用
Journal of the Spectroscopical Society of Japan Pub Date : 2006-02-15 DOI: 10.5111/BUNKOU.55.3
振東 孫, 喜紀 森脇, 省三 常川, 房和 松島, 高木 光司郎
{"title":"周波数可変炭酸ガスレ-ザ-サイドバンド光源と飽和分光への応用","authors":"振東 孫, 喜紀 森脇, 省三 常川, 房和 松島, 高木 光司郎","doi":"10.5111/BUNKOU.55.3","DOIUrl":"https://doi.org/10.5111/BUNKOU.55.3","url":null,"abstract":"","PeriodicalId":199016,"journal":{"name":"Journal of the Spectroscopical Society of Japan","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124620840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Two-Dimensional Observation of Fluctuation in Methane-Air/LPG-Air Premixed Flames by Planar Laser Induced Fluorescence (PLIF) 平面激光诱导荧光(PLIF)二维观测甲烷-空气/液化石油气-空气预混火焰波动
Journal of the Spectroscopical Society of Japan Pub Date : 2005-10-15 DOI: 10.5111/BUNKOU.54.301
Atsushi Katoh, H. Oyama, K. Kitagawa, A. Gupta
{"title":"Two-Dimensional Observation of Fluctuation in Methane-Air/LPG-Air Premixed Flames by Planar Laser Induced Fluorescence (PLIF)","authors":"Atsushi Katoh, H. Oyama, K. Kitagawa, A. Gupta","doi":"10.5111/BUNKOU.54.301","DOIUrl":"https://doi.org/10.5111/BUNKOU.54.301","url":null,"abstract":"OH-PLIF images were observed sequentially at a rate of 30 frames/s on CH4-air and liquefied petroleum gas (LPG)-air premixed flames, followed by statistical analysis including Fast Fourier Transformation (FFT) to examine flame fluctuations at inner and outer regions of the premixed flames. Characteristics in the FFT power spectra were different between the inner and outer cases due to a difference in mixing condition of the fuel gas and air between the inner and outer flame regions. Correlation profiles between average value and standard deviation of the consecutively measured OH-PLIF intensity showed that combustion reaction activity was not always a prevailing driving force for the fluctuation. This characteristic was independent of the difference in mixing condition of the fuel gas and air between the inner and outer flame regions. Key words: flame fluctuation, premixed flames, OH-PLIF distribution, statistical analysis","PeriodicalId":199016,"journal":{"name":"Journal of the Spectroscopical Society of Japan","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121854777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
テラヘルツ・遠赤外分光IV.放射光分光 太赫兹远红外光谱IV.放射光谱
Journal of the Spectroscopical Society of Japan Pub Date : 2005-08-15 DOI: 10.5111/BUNKOU.54.263
孝夫 難波
{"title":"テラヘルツ・遠赤外分光IV.放射光分光","authors":"孝夫 難波","doi":"10.5111/BUNKOU.54.263","DOIUrl":"https://doi.org/10.5111/BUNKOU.54.263","url":null,"abstract":"","PeriodicalId":199016,"journal":{"name":"Journal of the Spectroscopical Society of Japan","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133494636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of Focusing on Charge-Induced Current and Spectral Emission in a Plasma Generated by a Nd: YAG Laser at Low Pressures 聚焦对低压Nd: YAG激光等离子体中电荷感应电流和光谱发射的影响
Journal of the Spectroscopical Society of Japan Pub Date : 2005-06-15 DOI: 10.5111/BUNKOU.54.170
W. Budi, I. Marhaendrajaya, Wuryanti, N. Idris, K. Kagawa, T. Lie, H. Kurniawan
{"title":"Effect of Focusing on Charge-Induced Current and Spectral Emission in a Plasma Generated by a Nd: YAG Laser at Low Pressures","authors":"W. Budi, I. Marhaendrajaya, Wuryanti, N. Idris, K. Kagawa, T. Lie, H. Kurniawan","doi":"10.5111/BUNKOU.54.170","DOIUrl":"https://doi.org/10.5111/BUNKOU.54.170","url":null,"abstract":"The effect of laser focusing condition on the emission and charge-induced current characteristics of the copper plasma induced by a Q-switched Nd-YAG laser (37 mJ, 8ns) at reduced pressures of air has been studied to examine the excitation process of the ablated atoms in the secondary plasma. The charge-induced current measurement has been conducted by placing a partially transmitted nickel mesh in front of the sample surface at a certain distance. Also by using the rainbow interferometric technique, the density jump in the secondary plasma could be clearly observed. The relationship analysis on the secondary plasma emission intensity, the charge-induced current and the average velocity of the shock front as a function of laser irradiation focusing condition revealed clearly the role of the shock wave in the excitation mechanisms of the secondary plasma, proving the electron collision and the electronion recombination are not major processes.","PeriodicalId":199016,"journal":{"name":"Journal of the Spectroscopical Society of Japan","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124103175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Infrared Phonon Spectra and Lattice Dynamics for NdGaO3 NdGaO3的红外声子光谱和晶格动力学
Journal of the Spectroscopical Society of Japan Pub Date : 2005-04-15 DOI: 10.5111/BUNKOU.54.97
J. Suda, Tsutomu Satō
{"title":"Infrared Phonon Spectra and Lattice Dynamics for NdGaO3","authors":"J. Suda, Tsutomu Satō","doi":"10.5111/BUNKOU.54.97","DOIUrl":"https://doi.org/10.5111/BUNKOU.54.97","url":null,"abstract":"Polarized infrared reflected spectra of NdGaO3 crystal are measured at room temperature. The infrared-active phonon frequencies, linewidths and the dielectric constants are obtained by oscillator fitting procedure of the reflective data measured at room temperature. The phonon dispersion curves of NdGaO3 are calculated using a shell model. The B2u mode at 174 cm-1 involves mixedvibrations of the Nd atoms and the GaO6 octahedra, and the higher frequency mode do not involve motion of Nd atoms above 300 cm-1. The linewidth of B2u mode has been analyzed at 174 cm-1, 356 cm-1 and 595 cm-1 using the lattice dynamical perturbative treatment within the cubic anharmonic term in the expansion series ofthe crystal potential energy, and the calculated results reproduces the observedones at room temperature. We found that the linewidth of the B2u mode (174 cm-1) va-ried with increasing temperature by comparison with other phonon peaks (356 cm-1 and 595 cm-1).","PeriodicalId":199016,"journal":{"name":"Journal of the Spectroscopical Society of Japan","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115910929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
The 18th International Conference on High Resolution Molecular Spectroscopy 第18届高分辨率分子光谱学国际会议
Journal of the Spectroscopical Society of Japan Pub Date : 2004-12-15 DOI: 10.5111/BUNKOU.53.369
光一 築山
{"title":"The 18th International Conference on High Resolution Molecular Spectroscopy","authors":"光一 築山","doi":"10.5111/BUNKOU.53.369","DOIUrl":"https://doi.org/10.5111/BUNKOU.53.369","url":null,"abstract":"","PeriodicalId":199016,"journal":{"name":"Journal of the Spectroscopical Society of Japan","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127018483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Quantitative Elemental Analysis of Silicate Rocks by Laser-Induced Plasma Spectroscopy 硅酸盐岩石的激光诱导等离子体光谱定量元素分析
Journal of the Spectroscopical Society of Japan Pub Date : 2004-08-15 DOI: 10.5111/BUNKOU.53.243
T. Yasuda, M. Murakami, Mikio Kuzuya
{"title":"Quantitative Elemental Analysis of Silicate Rocks by Laser-Induced Plasma Spectroscopy","authors":"T. Yasuda, M. Murakami, Mikio Kuzuya","doi":"10.5111/BUNKOU.53.243","DOIUrl":"https://doi.org/10.5111/BUNKOU.53.243","url":null,"abstract":"A quantitative elemental analysis of silicate rocks was carried out with a laser microprobe analyzer. A Q-switched Nd: YAG laser (90mJ, 10ns) was focused on rock samples in an argon atmosphere at reduced pressure, and the emission spectra from laser-induced plasma were measured using time-resolved spectroscopy. The experimental results showed that the maximum spectral line intensity was obtained in argon at approximately 200 Torr, whereas the spectral line-to-background ratio were maximized at around 60 Torr, by observing the laser plasma with a time delay of 0.4μs. Furthermore, the results of time-resolved spectroscopy of the plasma produced in argon at 200 Torr and 60 Torr indicated that time-resolved measurement of a spectrum in the initial stage of plasma generation (-1μs) at a pressure of 60 Torr was effective for improving the slope of the calibration curve. Based on the results, standard rock samples were analyzed for aluminum, magnesium, calcium, titanium and iron, and linear calibration curves with a slope of unity were obtained by measuring spectra with a gate width of 0.6μs at a delay time of 0.4μs after the laser pulse in argon at 60 Torr.","PeriodicalId":199016,"journal":{"name":"Journal of the Spectroscopical Society of Japan","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125276981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Measurements of the line strengths, N2-, and O2-broadened half-widths in the 2ν2 +ν3 band of 14N216O at room temperature 室温下14N216O的2ν2 +ν3波段线强、N2-和o2加宽半宽的测量
Journal of the Spectroscopical Society of Japan Pub Date : 2004-04-15 DOI: 10.5111/BUNKOU.53.80
M. Fukabori, T. Aoki, Takeshi Watanabe
{"title":"Measurements of the line strengths, N2-, and O2-broadened half-widths in the 2ν2 +ν3 band of 14N216O at room temperature","authors":"M. Fukabori, T. Aoki, Takeshi Watanabe","doi":"10.5111/BUNKOU.53.80","DOIUrl":"https://doi.org/10.5111/BUNKOU.53.80","url":null,"abstract":"The line strengths, N2-, and O2-broadened half-widths in the 2ν2+ν3 band of 14N216O were determined from spectra obtained by a high-resolution Fourier transform spectrometer at room temperature. The squared vibrational transition dipole moment and the coefficients of the Herman-Wallis factor were also determined for this band. The measured line strengths agreed well with the values of HITRAN2K. The N2- and O2-broadened halfwidths were in agreement with the results of recent high-resolution experiments within the experimental errors. The air-broadened half-widths were calculated using the smoothed N2- and O2-broadened half-widths and compared with the values of HITRAN2K.","PeriodicalId":199016,"journal":{"name":"Journal of the Spectroscopical Society of Japan","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121697836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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