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Glass melt inclusion in clinopyroxene from Linqu Cenozoic basalt,Shandong Province,China

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Chinese Science Bulletin 2006年第15期51卷 1869-1876页

作者： ZHANG Hongfu Eizo nakamura ZHANG Jin Ishikawa Akira State Key Laboratory of Lithospheric Evolution Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 China Institute for Study of the Earth's Interior Okayama University at Misasa Tottori 682-0193 Japan

Cenozoic basalts from the Linqu County, Shandong Province, China entrain some clinopy- roxene crystals, of which many contain abundant glass melt inclusions. These melt inclusions are ex- tremely irregular in shape with most grain sizes in a range of 10-50 μm and coexist with low-Mg# olivines, labradorites and Ca-rich potassium feldspars. In-situ major and trace element analyses show that the glass melt inclusions are high in alkalis (Na2O+K2O > 10 wt%), SiO2 (>54 wt%), CaO and FeO (>4 wt%), but low in MgO (Mg# 2), thus having phonoli- tic compositions. The compositional features of cli- nopyroxene crystals, glass melt inclusions and their coexistent minerals suggest that these melt inclu- sions were exotic melts in clinopyroxenes trapped prior to their entrainment in the host basalt. The dis- covery of these melt inclusions provides a new ap- proach to further investigating the evolution of Meso- zoic lithospheric mantle beneath the southeastern North China Craton.

关键词：新生代玄武岩斜辉石玻璃熔体地壳资源山东

Selection of Suitable Maximum-heart-rate Formulas for Use with Karvonen Formula to Calculate Exercise Intensity

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International Journal of Automation and computing 2015年第1期12卷 62-69页

作者： Jinhua She Hitoshi nakamura Koji Makino Yasuhiro Ohyama Hiroshi Hashimoto Graduate School of Bionics Computer and Media Sciences Tokyo University of Technology 1404-1 KatakuraHachioji Tokyo 192-0982 Japan Interdisciplinary Graduate School of Medical and Engineering University of Yamanashi4-3-11 Takeda Kofu 400-8511 Japan Master Program of Innovation for Design and Engineering Advanced Institute of Industrial Technology 1-10-40 HigashiooiShinagawa-ku Tokyo 140-0011 Japan

The Karvonen formula, which is widely used to estimate exercise intensity, contains maximum heart rate, H Rmax, as a variable. This study employed pedaling experiments to assess which of the proposed formulas for calculating H Rmaxwas the most suitable for use with the Karvonen formula. First, two kinds of experiments involving an ergometer were performed: an all-in-one-day experiment that tested eight pedaling loads in one day, and a one-load-per-day experiment that tested one load per day for eight days.A comparison of the data on 7 subjects showed that the all-in-one-day type of experiment was better for assessing H Rmaxformulas,at least for the load levels tested in our experiments. A statistical analysis of the experimental data on 47 subjects showed two of the H Rmaxformulas to be suitable for use in the Karvonen formula to estimate exercise intensity for males in their 20 s. In addition, the physical characteristics of a person having the greatest impact on exercise intensity were determined.

关键词： Borg CR10 scale Karvonen formula exercise intensity maximum heart rate pedaling statistical analysis

Adult Congenital Lumbar Kyphosis Requiring Anteroposterior Correction and Fusion: A Case Report with 32-Year Follow-Up

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Open Journal of Orthopedics 2023年第9期13卷 397-404页

作者： Akihito Wada Kazumasa nakamura Keiji Hasegawa Katsunori Fukutake Hiroshi Takahashi Department of Orthopedic Surgery Toho University School of Medicine Tokyo Japan

Congenital pure kyphosis due to failure of vertebral body segmentation is a relatively rare entity, and surgical intervention is infrequent compared to that for failure of vertebral body formation [1] [2]. There are very few reports of long-term follow-up of surgical treatment in patients with congenital pure kyphosis, and all the reported cases were diagnosed as failure of formation and had an age at the time of surgery of less than 18 years. It is important for orthopedic surgeons to follow the postoperative course of rare cases over 30 years. Here, we present a surgically treated case with ultra-long term follow-up of a 50-year-old patient with congenital pure kyphosis of the lumbar spine. Imaging of the lumbar spine showed six vertebrae and an unsegmented bar at L3-4 causing a pure kyphosis of 54°. The wedge-shaped block vertebra had 4 pedicles with the neural foramen between the pedicles without concomitant disc space, with compensatory thoracic hypokyphosis and lower lumbar hyperlordosis. One-stage correction and fusion surgery using anterior opening and posterior closing osteotomy was successfully performed. Both clinical and radiographic results were excellent and have been maintained for over 30 years postoperatively. The basic principle in the surgical treatment of adult spinal deformity is to achieve and maintain a good global sagittal balance over time. This case reaffirms the importance of spinopelvic harmony.

关键词： Adult Congenital Kyphosis Anterior Posterior Spinal Fusion Failure of Vertebral Body Segmentation Long-Term Follow-Up Spinopelvic Harmony

Upconversion time-stretch infrared spectroscopy

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Light(Science & Applications) 2023年第3期12卷 465-474页

作者： Kazuki Hashimoto Takuma nakamura Takahiro Kageyama Venkata Ramaiah Badarla Hiroyuki Shimada Ryoich Horisaki Takuro Ideguchi Institute for Photon Science and Technology The University of TokyoTokyo113-0033Japan Department of Physics The University of TokyoTokyo113-0033Japan Graduate School of Information Science and Technology The University of TokyoTokyo113-8656Japan

High-speed measurement confronts the extreme speed limit when the signal becomes comparable to the noise *** the context of broadband mid-infrared spectroscopy,state-of-the-art ultrafast Fourier-transform infrared spectrometers,in particular dual-comb spectrometers,have improved the measurement rate up to a few MSpectra s^(-1),which is limited by the signal-to-noise ***-stretch infrared spectroscopy,an emerging ultrafast frequency-swept mid-infrared spectroscopy technique,has shown a record-high rate of 80 MSpectra s^(-1) with an intrinsically higher signal-to-noise ratio than Fourier-transform spectroscopy by more than the square-root of the number of spectral ***,it can measure no more than~30 spectral elements with a low resolution of several ***,we significantly increase the measurable number of spectral elements to more than 1000 by incorporating a nonlinear upconversion *** one-to-one mapping of a broadband spectrum from the mid-infrared to the near-infrared telecommunication region enables low-loss time-stretching with a single-mode optical fiber and low-noise signal detection with a high-bandwidth *** demonstrate high-resolution mid-infrared spectroscopy of gas-phase methane molecules with a high resolution of 0.017 cm^(-1).This unprecedentedly high-speed vibrational spectroscopy technique would satisfy various unmet needs in experimental molecular science,e.g.,measuring ultrafast dynamics of rreversible phenomena,statistically analyzing a large amount of heterogeneous spectral data,or taking broadband hyperspectral images at a high frame rate.

关键词： spectroscopy noise resolution

Controlling the solid-state luminescence of gold(I) N-heterocyclic carbene complexes through changes in the structure of molecular aggregates

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Science China Chemistry 2018年第8期61卷 957-965页

作者： Arruri Sathyanarayana Shin-ya nakamura Kyohei Hisano Osamu Tsutsumi Katam Srinivas Ganesan Prabusankar Department of Applied Chemistry Ritsumeikan University 1-1-1 Nojihigashi Department of Chemistry Indian Institute of Technology

Thermally stable, solid-state luminescent organic materials are highly desired for the development of practical *** we synthesized new gold(I) complexes with N-heterocyclic carbene ligands, which have the ability to form strong metalorganic bond. Consequently, their thermochemical stability is enhanced at temperatures around 300 °C. Precise design of the molecular structure of the ligands, with a focus on ensuring low steric hindrance around Au atoms in order to limit disturbances to Au/Au interactions, provided a complex with a densely packed crystal with a shorter intermolecular Au–Au distance(3.17 ?)than the typical distance. In the solid state, this complex exhibited strong aurophilic interactions, which generated intense phosphorescence even in air at room temperature(quantum yield=16%) in spite of absence of any phosphorescence in *** behavior is characteristic for solid-state luminescence referred to as aggregation-controlled emission. Furthermore, the gold(I) complex displays capacity for mechano-and vapo-chromism—that is, the ability to change color reversibly in response to the application of external stimuli. We believe that the proposed design framework, which involves controlling thermal stability and luminescence property separately, provides a new opportunity for the development of practical applications using solid-state luminescent organic molecules.

关键词：独立控制建筑群分子间固态结构杂环金显示能力

A PRELIMINARY ANALYSIS ON THE CHARACTERISTICS OF THE KUROSHIO FRONTAL EDDY IN THE EAST CHINA SEA IN SPRING

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Chinese Journal of Oceanology and Limnology 1993年第3期11卷 276-284,289页

作者：郑义芳黄卫民 nakamura Yasuaki First Institute of Oceanography SOA Qingdao 266003 Seikai Fisheries Research JFA Japan

The Kuroshi’o front eddy’s surface and sectional isothermal distribution characteristics were analyzed on the basis of observation data obtained in April 13-16 of 1989 in the East China Sea. It was found from the similarity between these isothermal distributions with those in January and beginning of June for the years 1986-1990 that the Kuroshio front eddy often occurred from March to the beginning of June. The Kuroshio front eddy movement in the East China Sea in spring was along two routes: the Okinawa Trough route, and the continental shelf slope route. The two moving routes both in the surface layer and in the section are described, their causes are discussed, and differences are compared.

关键词： Kuroshio front eddy. Kuroshio warm filament warm water eddy

Effects of casting factors of cooling slope on semisolid condition

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中国有色金属学会会刊：英文版 2010年第S3期20卷 968-972页

作者： T.HAGA R.nakamura R.TAGO H.WATARI Department of Mechanical Engineering Osaka Institute of Technology5-16-1 Omiya Asahi-kuOsaka City 535-8585Japan Department of Production Science and Technology Gunma University Tenjin-choKiryu City 376-8515Japan

The effects of the casting factors such as nozzle size to pour the melt,nozzle height,tilt of the slope and slope length,of the cooling slope on the process to make semisolid slurry were *** results show that these factors affect the behaviors of the semisolid slurry on the cooling *** tilt of the slope is the factor that has major influence on the behavior of the semisolid *** cooling roll is developed from the result of the research of the cooling *** rotating cooling roll can improve the sticking of the semisolid slurry on the substrate and it is suitable for making the semisolid slurry.

关键词： casting factors cooling roll semisolid slurry cooling slope

Correlation of the nuclear accumulation of CTNNB1 and colonic tumorigenesis

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Chinese Medical Journal 2006年第13期119卷 1113-1117页

作者： QIU Zhe-fu Maruyama Keiji HAN De-min nakamura Satoshi Second Department of Surgery Hamamatsu University School of Medicine 1-20-1 Handayama Hamamatsu 431-3192 Japan Beijing Otolaryngology-Head and Neck Surgery Research Centre Affiliated Beijing Tongren Hospital of Capital University of Medical Sciences Beijing 100005 China

CTNNB1 （or beta-catenin） is regarded as a central effecter in molecules of the wingless/Wnt signalling pathway, It is cadherin mediated cell to forms a complex with a key component of the cell adhesion system and the protein product of adenomatous polyposis coil （APC）, glycogen synthase kinase 3β （GSK3β） and conductin. One mutation of APC is also responsible for activation of wingless/Wnt signalling pathway and accumulation of free beta-catenin in the cell. Beta-catenin upregulates oncogenes, such as cyclin D1 and c-myc. Beta-catenin expression in cytoplasm and nuclei was reported to increase in many cases of intestinal tumorigenesis. In addition, the hyperexpression of integrin linked kinase （ILK） in colonic polyposis has been demonstrated.

关键词： beta catenin colonic polyps integrin-linked kinase piroxicam mice

Diagnostic performance of endoscopic classifications for neoplastic lesions in patients with ulcerative colitis:A retrospective casecontrol study

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World Journal of Gastroenterology 2022年第10期28卷 1055-1066页

作者： Yuichi Kida Takeshi Yamamura Keiko Maeda Tsunaki Sawada Eri Ishikawa Yasuyuki Mizutani Naomi Kakushima Kazuhiro Furukawa Takuya Ishikawa Eizaburo Ohno Hiroki Kawashima Masanao nakamura Masatoshi Ishigami Mitsuhiro Fujishiro Department of Gastroenterology and Hepatology Nagoya University Graduate School of MedicineNagoya 466-8550AichiJapan Department of Endoscopy Nagoya University HospitalNagoya 466-8560AichiJapan Department of Gastroenterology Graduate School of MedicineThe University of TokyoTokyo 113-8655Japan

BACKGROUND It is unclear whether the Japan Narrow-Band Imaging Expert Team(JNET)classification and pit pattern classification are applicable for diagnosing neoplastic lesions in patients with ulcerative colitis(UC).AIM To clarify the diagnostic performance of these classifications for neoplastic lesions in patients with *** This study was conducted as a single-center,retrospective case-control ***-one lesions in 19 patients with UC-associated neoplasms(UCAN)and 23 lesions in 22 UC patients with sporadic neoplasms(SN),evaluated by magnifying image-enhanced endoscopy,were retrospectively and separately assessed by six endoscopists(three experts,three non-experts),using the JNET and pit pattern *** results were compared with the pathological diagnoses to evaluate the diagnostic ***-and intra-observer agreements were *** In this study,JNET type 2 A and pit pattern typeⅢ/Ⅳwere used as indicators of low-grade dysplasia,JNET type 2 B and pit pattern typeⅥlow irregularity were used as indicators of highgrade dysplasia to shallow submucosal invasive carcinoma,JNET type 3 and pit pattern typeⅥhigh irregularity/VN were used as indicators of deep submucosal invasive *** the UCAN group,JNET type 2 A and pit pattern typeⅢ/Ⅳhad a low positive predictive value(PPV;50.0%and 40.0%,respectively);however,they had a high negative predictive value(NPV;94.7%and 100%,respectively).Conversely,in the SN group,JNET type 2 A and pit pattern typeⅢ/Ⅳhad a high PPV(100%for both)but a low NPV(63.6%and 77.8%,respectively).In both groups,JNET type 3 and pit pattern typeⅥ-high irregularity/VN showed high *** interobserver agreement of JNET classification and pit pattern classification for UCAN among experts were 0.401 and 0.364,in the same manner for SN,0.666 and 0.597,*** intra-observer agreements of JNET classification and pit pattern classification for UCAN among experts were 0.387,0.454,for SN,0.803 and

关键词： Diagnostic performance Japan Narrow-Band Imaging Expert Team classification Pit pattern classification Sporadic neoplasms Ulcerative colitis Ulcerative colitis-associated neoplasms