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Reclamation of Foundry Sand by Dry Type Vibration Method

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昆明理工大学学报（自然科学版） 1990年第3期31卷 2-7页

作者： nobuhisa tsutsumi Dr.Eng Sun Kewei

Influences of frequency,amplitude,vibrating time,moisture in sand,thickness of sand layer and pretreatment of high frequency vibration and heating on sand reclamation were *** binder layers around sand grains are completely removed and original sand grains remain unbroken by vibration at a certain frequency and *** of sand reclamation by the vibration method is correlated to the vibration force which depends on the combination of frequency and amplitude to a great *** optimum vibration condition is limited by the capacity of *** of used sand is *** thickness of used sand is an important *** of used sand are also ***,preheating in a certain temperature range is preferable to preliminary vibration at high frequency.

关键词： vibrating heating grains pretreatment preliminary removed binder moisture 志石振幅比

Determination of gaseous semi- and low-volatile organic halogen compounds by barrier-discharge atomic emission spectrometry

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Journal of Environmental Sciences 2013年第1期25卷 213-219页

作者： Yifei Sun nobuhisa Watanabe Wei Wang Tianle Zhu School of Chemistry and Environment Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of EducationBeihang University Department of Environmental Engineering Osaka Institute of Technology School of Environment Tsinghua University

A group parameter approach using ＂total organic halogen＂ is effective for monitoring gaseous organic halogen compounds, including fluorine, chlorine, and bromine compounds, generated from combustion. We described the use of barrier-discharge radiofrequency- helium-plasma/atomic emission spectrometry, for the detection of semi- and low-volatile organic halogen compounds （SLVOXs）, which can be collected by CarbotrapTM adsorbents and analyzed using thermal desorpfion. The optimal carder gas flow rates at the injection and desorption lines were established to be 100 mL/min. The detection range for SLVOXs in the gaseous samples was from 10 ng to tens of micrograms. Measuring F was more difficult than measuring C1 or Br, because the wavelength of F is close to that of air. The barrier- discharge radiofrequency-helium-plasma/atomic emission spectrometry measured from 85% to 103% of the SLVOXs in the gas sample. It has been found that Carbotrap B is appropriate for high-boiling-point compounds, and Carbotrap C is suitable for the determination of organic halogen compounds with lower boiling points, in the range 200-230℃. Under optimal analysis conditions, a chlorine- containing plastic was destroyed using different oxygen concentrations. Lower oxygen concentrations resulted in the production of lower amounts of organic halogen compounds.

关键词： organic halogen semi- and low-volatile organic halogen radiofrequency helium plasma desorption

Generation of spectrally stable 6.5-fs visible pulses via filamentation in krypton

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High Power Laser Science and Engineering 2016年第2期4卷 75-79页

作者： Keisuke Kaneshima Kengo Takeuchi nobuhisa Ishii Jiro Itatani The Institute for Solid State Physics The University of Tokyo

We produced 5-μJ, 6.5-fs visible pulses at a repetition rate of 1 kHz using filamentation in a gas cell filled with krypton followed by spectral selection and phase compensation by a combination of dielectric mirrors. The visible pulses have a smooth spectrum from 520 to 650 nm with a shot-to-shot stability in each spectral component of better than 2%(standard deviation). This pulse compression scheme is simple and robust, and can be easily integrated into intense ultrashort-pulse laser systems.

关键词： filamentation ultrafast spectroscopy ultrashort visible pulses

New approach to resolve the amount of Quaternary uplift and associated denudation of the mountain ranges in the Japanese Islands

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Geoscience Frontiers 2016年第2期7卷 197-210页

作者： Shigeru Sueoka Hiroyuki tsutsumi Takahiro Tagami Japan Atomic Energy Agency 2-1 Shiraki Tsuruga Fukui 919-1279 Japan Department of Geophysics Division of Earth and Planetary Sciences Kyoto University Oiwake-cho Kitashirakawa Sakyo-ku Kyoto 606-8502 Japan Department of Geology and Mineralogy Division of Earth and Planetary Sciences Kyoto University Oiwake-cho Kitashirakawa Sakyo-ku Kyoto 606-8502 Japan

Low-temperature thermochronology is a widely used tool for revealing denudation histories of mountain ranges. Although this technique has been applied mainly to continental orogens, such as the European Alps, Himalayas, and Andes, recent technological development of low-temperature thermochronology has made it applicable to a wider variety of mountain ranges with various sizes and tectonic histories. The Japanese Islands comprise young and active island arcs, where an early stage of mountain range formation is observed. Numerous attempts have been made to constrain the uplift and denudation histories of the mountains in the Japanese Islands using geologic, geomorphologic, or geodetic methods. However, the number of thermochronometric attempts has been limited primarily due to the small amount of total denudation since the initiation of the uplift. In this review paper, we introduce the tectonic and geomorphic settings of the mountain ranges in the Japanese Islands, and discuss previous attempts to estimate uplift or denudation of the Japanese mountains using methods other than ther- mochronology. Furthermore, we discuss problems of the thermochronometric applications in revealing denudation histories of the Japanese mountains. Finally, we present a case study of the Kiso Range in central Japan and discuss the current effectiveness and applicability of low-temperature thermochronology to the Japanese mountainous areas.

关键词： Low-temperature thermochronology Denudation Japanese Islands Fault-block mountain T-d relationships

Validation of novel Japanese indication criteria and biomarkers among living donor liver transplantation recipients with hepatocellular carcinoma - a single center retrospective study

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Hepatoma Research 2020年第8期6卷 101-111页

作者： Akihiko Ichida nobuhisa Akamatsu Kiyoshi Hasegawa Artificial Organ and Transplantation Surgery Division Department of SurgeryUniversity of TokyoTokyo 113-8655Japan.

Aim:To validate a novel Japanese indication criteria for liver transplantation(LT)for hepatocellular carcinoma(HCC),i.e.,the 5-5-500 criteria(nodule size≤5 cm in diameter,nodule number≤5,and alfa-fetoprotein(AFP)value≤500 ng/mL)and the Japanese double eligibility criteria(DEC)(patients meeting the Milan or the 5-5-500 criteria)in the University of Tokyo *** usefulness of biomarkers in predicting the recurrence of HCC was also ***:The overall survival and recurrence rates of patients meeting the Milan,5-5-500,and the Japanese DEC were compared among 153 patients who underwent living donor LT(LDLT)between 1996 and 2019.A receiver-operating characteristics curve analysis was conducted to evaluate the usefulness of AFP,lens culinaris agglutinin-reactive fraction of AFP,des-gamma-carboxy prothrombin,neutrophil-lymphocyte ratio,and the platelet-lymphocyte ratio to detect ***:The 5-year recurrence rate for all patients,those meeting the Japanese DEC,5-5-500 criteria,and the Milan criteria was 10.9%,9.2%,7.4%,and 7.6%,*** with the conventional Milan criteria,the 5-5-500 criteria and the Japanese DEC could increase the number of eligible LDLT candidates by 6.1%and 11.4%.Among five biomarkers,the area under the curve value of AFP was the highest(0.852).Conclusion:The results suggest that the 5-5-500 criteria and the Japanese DEC are the appropriate selection criteria for patients with HCC in *** five biomarkers investigated,AFP was most reliable to predict HCC recurrence,which justified the utilization of AFP in the 5-5-500 criteria and the Japanese DEC.

关键词： Indication criteria of liver transplantation for hepatocellular carcinoma the 5-5-500 criteria the Japanese double eligibility criteria alfa-fetoprotein the lens culinaris agglutinin-reactive fraction of alfa-fetoprotein the des-gamma-carboxy prothrombin the neutrophil-lymphocyte ratio the platelet-lymphocyte ratio

Clinical differences between alcoholic liver disease and nonalcoholic fatty liver disease

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World Journal of Gastroenterology 2014年第26期20卷 8393-8406页

作者： Nobuyuki Toshikuni Mikihiro tsutsumi Tomiyasu Arisawa Department of Gastroenterology Kanazawa Medical University Department of Hepatology Kanazawa Medical University

Alcoholic liver disease(ALD)and nonalcoholic fatty liver disease(NAFLD)are serious health problems *** two diseases have similar pathological spectra,ranging from simple hepatic steatosis to steatohepatitis,liver cirrhosis,and hepatocellular *** most subjects with excessive alcohol or food intake experience simple hepatic steatosis,a small percentage of individuals will develop progressive liver ***,both ALD and NAFLD are frequently accompanied by extrahepatic complications,including cardiovascular disease and *** survival of patients with ALD and NAFLD depends on various disease-associated *** review delineates the clinical characteristics and outcomes of patients with ALD and NAFLD by comparing their epidemiology,the factors associated with disease susceptibility and progression,and the predictors and characteristics of outcomes.A comprehensive understanding of the characteristics and outcomes of ALD and NAFLD is imperative in the management of these chronic liver diseases.

关键词： Alcoholic liver disease Nonalcoholic fatty liver disease Clinical characteristics Outcomes Chronic liver disease

Petrology,geochemistry,and zircon U-Pb geochronology of the Zambezi Belt in Zimbabwe:Implications for terrane assembly in southern Africa

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Geoscience Frontiers 2019年第6期10卷 2021-2044页

作者： Yusuke Kuribara Toshiaki Tsunogae Yusuke Takamura Yukiyasu tsutsumi Graduate School of Life and Environmental Sciences University of TsukubaIbaraki 305-8572Japan Department of Geology University of JohannesburgAuckland Park 2006South Africa Department of Geology and Paleontology National Museum of Nature and ScienceIbaraki 305-0005Japan

The Zambezi Belt in southern Africa has been regarded as a part of the 570-530 Ma Kuunga Orogen formed by a series of collision of Archean cratons and Proterozoic orogenic ***,we report new petrological,geochemical,and zircon U-Pb geochronological data of various metamorphic rocks(felsic to mafic orthogneiss,pelitic schist,and felsic paragneiss)from the Zambezi Belt in northeastern Zimbabwe,and evaluate the timing and P-T conditions of the collisional event as well as protolith *** data of felsic orthogneiss indicate within-plate granite signature,whereas those of mafic orthogneiss suggest MORB,ocean-island,or within-plate *** P-Testimates for orthogneisses indicate significant P-T variation within the study area(700-780 C/6.7-7.2 kbar to 800-875 C/10-11 kbar)suggesting that the Zambezi Belt might correspond to a suture zone with several discrete crustal *** cores from felsic orthogneisses yielded two magmatic ages:2655±21 Ma and 813士5 Ma,which suggests Neoarchean and Early Neoproterozoic crustal growth related to within-plate *** zircons from metasediments display various ages from Neoarchean to Neoproterozoic(ca.2700-750 Ma).The Neoarchean(ca.2700-2630 Ma)and Paleoproterozoic(ca.2200-1700 Ma)zircons could have been derived from the adjacent Kalahari Craton and the Magondi Belt in Zimbabwe,*** Choma-Kalomo Block and the Lufilian Belt in Zambia might be proximal sources of the Meso-to Neoproterozoic(ca.1500-950 Ma)and early Neoproterozoic(ca.900-750 Ma)detrital zircons,*** detrital zircons from adjacent terranes possibly deposited during late Neoproterozoic(744-670 Ma),and subsequently underwent highgrade metamorphism at 557-555 Ma possibly related to the collision of the Congo and Kalahari Cratons during the latest Neoproterozoic to *** contrast,670-627 Ma metamorphic ages obtained from metasediments are slightly older than previous reports,but consistent with^68

关键词： Geothermobarometry Detrital zircon Neoproterozoic Congo Craton Kalahari Craton Gondwana

Nutrition and exercise in the management of liver cirrhosis

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World Journal of Gastroenterology 2014年第23期20卷 7286-7297页

作者： Nobuyuki Toshikuni Tomiyasu Arisawa Mikihiro tsutsumi Department of Gastroenterology Kanazawa Medical UniversityIshikawa 920-0293Japan Department of Hepatology Kanazawa Medical UniversityIshikawa 920-0293Japan

Liver cirrhosis(LC)patients often have protein-energy malnutrition(PEM)and decreased physical *** conditions often lead to sarcopenia,which is the loss of skeletal muscle volume and increased muscle *** studies have demonstrated that PEM and sarcopenia are predictors for poor survival in LC *** and exercise management can improve PEM and sarcopenia in those *** management includes sufficient dietary intake and improved nutrient *** the current high prevalence of obesity,the number of obese LC patients has increased,and restriction of excessive caloric intake without the exacerbation of impaired nutrient metabolism is required for such *** chain amino acids are good candidates for supplemental nutrients for both obese and non-obese LC *** management can increase skeletal muscle volume and strength and improve insulin resistance;however,nutritional status and LC complications should be assessed before an exercise management regimen is implemented in LC *** establishment of optimal exercise regimens for LC patients is currently *** this review,we describe nutritional status and its clinical impact on the outcomes of LC patients and discuss general nutrition and exercise management in LC patients.

关键词： Liver cirrhosis Protein-energy malnutrition Sarcopenia Obesity Exercise

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World Journal of Gastroenterology 2014年第11期20卷 2876-2887页

Liver cirrhosis (LC) is a critical stage of chronic liver disease, including that caused by hepatitis C virus (HCV). In the absence of antiviral therapy, 67%-91% of patients with HCV-related LC patients die of liver-related causes, including hepatocellular carcinoma (HCC) and liver failure. Among the therapeutic strategies used to prevent liver-related complications in these patients is standard therapy with pegylated interferon and ribavirin, which induces a sustained virological response (SVR) in 25% of HCV genotype 1-infected patients and in 69% of patients infected with genotypes 2 and 3. SVR in patients with HCV-related LC has been associated with reduced rates of hepatic decompensation, HCC, and mortality. More recently developed direct-acting antiviral agents have shown excellent antiviral efficacy, with preliminary data demonstrating that an interferon-free regimen that includes these direct-acting antiviral agents achieved SVR in more than 50% of patients with HCV genotype 1 LC. Branched-chain amino acid supplementation, improvement of insulin resistance, and the use of β-blockers for portal hypertension may also reduce liver-related complications. Here, we review advances in antiviral and adjunctive therapies for improved outcomes in patients with HCV-associated LC.

关键词： Hepatitis C virus Liver cirrhosis Hepatic decompensation Hepatocellular carcinoma Mortality Prevention Interferon Direct-acting antiviral agents