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Journal of Rare Earths 2006年第1期24卷 1-8页

作者： yoshio Shodai Minoru Inaba Kazuki Onoda Akimasa Tasaka Department of Molecular Science and Technology Faculty of Engineering Doshisha University Kyotanabe Kyoto 610-0321 Japan

A new process for electrolytic production of a perfluorinated compound, （CF3）3N, using lanthanum nickel oxide-coated Ni sheet anode in the （CH3）4NF· 4.0HF melt at room temperature, was developed. Thin films of the lanthanum nickel oxides were prepared on Ni sheets by sol-gel coating method using polyvinlylpyrrolidone（PVP）. The main components of the thin films were La2O3, LaNiO3, and La2NiO4 at 500, 750 and 1000℃, respectively. The anode performance in the （CH3）4NF·4.0HF melt depends greatly on the main component of the thin film, and the LaNiO3-coated Ni sheet anode gives the best anode performance. The potential of LaNiO3-coated Ni sheet anode remains constant at 5.9 V during electrolysis at 20 mA·cm^-2 in the （CH3）4NF·4.0HF melt for 100 h. This is because LaNiO3 and NiF3 and/or Ni2F5, the latter of which was formed during electrolysis, in the film give a high electronic conductivity to the surface film during electrolysis. The maximum mole fraction of （CF3）3N （21.4%） was obtained at 20 mA·cm^-2 in （CH3）4NF·4.0HF melt using the LaNiO3-coated Ni sheet.

关键词： electrolytic perfluorination lanthanum nickel oxide perfluorotrimethylamine rare earths

One-Dimensional(1-D) Nanoscale Heterostructures

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Journal of Materials Science & Technology 2008年第4期24卷 541-549页

作者： Guozhen SHEN Di CHEN yoshio BANDO Dmitri GOLBERG National Institute for Materials Science Tsukuba 305-0044 Ibaraki Japan Department of Electrical Engineering University of Southern California Los Angeles CA 90089 USA

One-dimensional （l-D） nanostructures have been attracted much attention as a result of their exceptional properties, which are different from bulk materials. Among 1-D nanostructures, 1-D heterostructures with modulated compositions and interfaces have recently become of particular interest with respect to potential applications in nanoscale building blocks of future optoelectronic devices and systems. Many kinds of methods have been developed for the synthesis of 1-D nanoscale heterostructures. This article reviews the most recent development, with an emphasize on our own recent efforts, on 1-D nanoscale heterostructures, especially those synthesized from the vapor deposition methods, in which all the reactive precursors are mixed together in the reaction chamber. Three types of 1-D nanoscale heterostructures, defined from their morphologies characteristics, are discussed in detail, which include 1-D co-axial core-shell heterostructures, 1-D segmented heterostructures and hierarchical heterostructures. This article begins with a brief survey of various methods that have been developed for synthesizing 1-D nanoscale heterostructures and then mainly focuses on the synthesis, structures and properties of the above three types of nanoscale heterostructures. Finally, this review concludes with personal views towards the topic of 1-D nanoscale heterostructures.

关键词： Nanostructures Heterostructures One-dlmenslonal Chemical vapor deposition

Redox active ionic liquid as efficient mediator and solvent for visible light-driven B_(12) catalytic reactions

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Green Energy & Environment 2019年第2期4卷 116-120页

作者： Hisashi Shimakoshi Noriyuki Houfuku Li Chen yoshio Hisaeda Department of Chemistry and Biochemistry Graduate School of Engineering Kyushu University

The redox active ionic liquid, 1-ethyl-4-(methoxycarbonyl)pyridinium bis(trifluoromethanesulfonyl)amide(RIL), was synthesized from its iodide form by an anion exchange reaction of Li(NTf_2) with viscos liquid(η= 122 cP at 25C) and characterized by NMR, IR, and elemental analysis. The compound showed reversible redox couples at -0.65 V and -1.48 V vs. Ag/AgCl and worked as an electron mediator in the B_(12) complex/[Ru(bpy)_3]Cl_2 photosensitizer catalytic system under visible light irradiation. The catalytic efficiency in the RIL was higher than those in DMF, MeOH, and the redox inactive ionic liquid, 1-butyl-3-methyl imidazolium bis(trifluoromethylsulfonyl)amide.

关键词： Ionic liquid Photosensitizer Redox active Visible light Vitamin B12

Large stereoscopic LED display by use of parallax barrier of aperture grille type(Invited Paper)

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Chinese Optics Letters 2014年第6期12卷 21-25页

作者： Hirotsugu Yamamoto Hayato Nishimura Tetsuya Abe yoshio Hayasaki Department of Optical Science and Technology University of Tokushima2-1 Minamijosanjima Tokushima CityTokushima 7708506 Japan Center for Optical Research and Education Utsunomiya University7-1-2 Yoto Utsunomiya City Tochigi 3218585 Japan

We propose a large parallax barrier by use of aperture grille. Main advantages of using aperture grille include no reflection and no absorption in apertures, as well as wide viewing angle. These advantages are investigated with theoretical calculations and experiments by use of several kinds of LED panels, such as a fine-pitch LED panel and a 140-inch large LED panel. Limitations of viewing angle by parallax barrier are analyzed in conventional black stripes on a transparent substrate type and in aperture grille type. Experimental results straw use of aperture grille increases contrast and reduce reflection on the aperture surface.

关键词： LED Large stereoscopic LED display by use of parallax barrier of aperture grille type

High-resolution modeling and evaluation of ozone air quality of Osaka using MM5-CMAQ system

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Journal of Environmental Sciences 2009年第6期21卷 782-789页

作者： SHRESTHA Kundan Lal KONDO Akira KAGA Akikazu INOUE yoshio Division of Sustainable Energy and Environmental Engineering School of EngineeringOsaka University

High-resolution modeling approach is increasingly being considered as a necessary step for improving the monitoring and predictions of regional air quality. This is especially true for highly urbanized region with complex terrain and land-use. This study uses Community Multiscale Air Quality （CMAQ） model coupled with MM5 mesoscale model for a comprehensive analysis to assess the suitability of such high-resolution modeling system in predicting ozone air quality in the complex terrains of Osaka, Japan. The 1-km and 3-kin grid domains were nested inside a 9-km domain and the domain with 1-km grid covered the Osaka region. High-resolution Grid Point Value-Mesoscale Model （GPV-MSM） data were used after suitable validation. The simulated ozone concentrations were validated and evaluated using statistical metrics using performance criteria set for ozone. Daily maxima of ozone were found better simulated by the 1-krn grid domain than the coarser 9-km and 3-km domains, with the maximum improvement in the mean absolute gross error about 3 ppbv. In addition, 1-km grid results fared better than other grids at most of the observation stations that showed noticeable differences in gross error as well as correlation. These results amply justify the use of the integrated high-resolution MM5-CMAQ modeling system in the highly urbanized region, such as the Osaka region, which has complex terrain and land-use.

关键词： air quality model evaluation ozone Community Multiscale Air Quality MM5 statistical analysis

An Improved Treatment on the Apparent Contact Angle of a Single-Bubble in Consideration of Microlayer for Simulations of Nucleate Pool Boiling

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Journal of Thermal Science 2021年第6期30卷 1951-1959页

作者： CHEN Zhihao WU Feifei UTAKA yoshio CHEN Ping LIANG Chen School of Mechanical Engineering Tianjin UniversityTianjin 300350China Key Laboratory of Efficient Utilization of Low and Medium Grade Energy(Tianjin University) Ministry of EducationTianjin 300350China Department of Mechanical Engineering Graduate School of EngineeringKyushu UniversityFukuoka 819-0395Japan National New Energy Vehicle Technology Innovation Center Beijing 100176China Beijing Automotive Technology Center BAIC GroupBeijing 101300China

Numerical simulation of single-bubble growth behavior during nucleate pool boiling was developed based on the volume of fluid method considering the thin liquid layer under the bubble(microlayer).However,the experimental values of apparent contact angle(the small region connecting the microlayer and bulk liquid)are crucial for the *** on experimental results limited the further application of such numerical *** this study,a new method calculating the force balance,used to determine the interface shape near the apparent contact angle,was proposed instead of using the experimental values of the apparent contact *** a result,the good agreement was shown between the simulation results obtained based on the new and previous numerical *** simulation results were also in consistent with the experimental *** can be concluded that the single-bubble behavior,including the heat transfer characteristics,during nucleate pool boiling can be simulated based on the proposed method.

关键词： numerical simulation nucleate pool boiling bubble growth microlayer surface tension VOF method

Chemoprevention of gastric cancer development after Helicobacter pylori eradication therapy in an East Asian population:Meta-analysis

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World Journal of Gastroenterology 2020年第15期26卷 1820-1840页

作者： Mitsushige Sugimoto Masaki Murata yoshio Yamaoka Department of Gastroenterological Endoscopy Tokyo Medical University HospitalSinjukuTokyo 1600023Japan Department of Gastroenterology National Hospital Organization Kyoto Medical CenterKyoto 6128555Japan Department of Gastroenterology Department of Environmental and Preventive MedicineOita University Faculty of MedicineYufuOita 8795593Japan

BACKGROUND Helicobacter pylori(***)infection is a risk factor for gastric cancer(GC),especially in East Asian *** East Asian populations infected with *** are at higher risk for GC than ***-positive European and United States *** eradication therapy reduces gastric cancer risk in patients after endoscopic and operative resection for GC,as well as in non-GC patients with atrophic *** To clarify the chemopreventive effects of *** eradication therapy in an East Asian population with a high incidence of *** PubMed and the Cochrane library were searched for randomized control trials(RCTs)and cohort studies published in English up to March *** analyses were conducted with regard to study designs(i.e.,RCTs or cohort studies),country where the study was conducted(i.e.,Japan,China,and South Korea),and observation periods(i.e.,≤5 years and>5 years).The heterogeneity and publication bias were also *** For non-GC patients with atrophic gastritis and patients after resection for GC,4 and 4 RCTs and 12 and 18 cohort studies were included,*** RCTs,the median incidence of GC for the untreated control groups and the treatment groups was 272.7(180.4–322.4)and 162.3(72.5–588.2)per 100000 person-years in non-GC cases with atrophic gastritis and 1790.7(406.5–2941.2)and 1126.2(678.7–1223.1)per 100000 person-years in cases of after resection for *** with non-treated ***-positive controls,the eradication groups had a significantly reduced risk of GC,with a relative risk of 0.67[95%confidence interval(CI):0.47–0.96]for non-GC patients with atrophic gastritis and 0.51(0.36–0.73)for patients after resection for GC in the RCTs,and 0.39(0.30–0.51)for patients with gastritis and 0.54(0.44–0.67)for patients after resection in cohort *** In the East Asian population with a high risk of GC,*** eradication effectively reduced the risk of GC,irrespective of past histo

关键词： Helicobacter pylori Eradication therapy Gastric cancer Metachronous cancer East Asia Prevention

On the Rankin-Selberg problem:higher power moments of the Riesz mean error term

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Science China Mathematics 2008年第1期51卷 148-160页

作者： TANIGAWA yoshio ZHAI WenGuang ZHANG DeYu Graduate School of Mathematics Nagoya UniversityNagoya 464-8602Japan School of Mathematical Sciences Shandong Normal UniversityJinan 250014China

LetΔ1（x;φ） be the error term of the first Riesz mean of the Rankin-Selberg problem. We study the higher power moments ofΔ1（x;φ） and derive an asymptotic formula for the 3-rd, 4-th and 5-th power moments by usi... 详细信息

关键词： Rankin-Selberg problem Riesz mean Voronoi type formula power moment

Regional lymphadenectomy for gallbladder cancer: Rational extent, technical details, and patient outcomes

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World Journal of Gastroenterology 2012年第22期18卷 2775-2783页

作者： yoshio Shirai Toshifumi Wakai Jun Sakata Katsuyoshi Hatakeyama Division of Digestive and General Surgery Niigata University Graduate School of Medical and Dental Sciences

AIM: To define the rational extent of regional lymphadenectomy for gallbladder cancer and to clarify its effect on long-term survival. METHODS: A total of 152 patients with gallbladder cancer who underwent a minimum of "extended" portal lymph node dissection (defined as en bloc removal of the first-and second-echelon nodes) from 1982 to 2010 were retrospectively analyzed. Based on previous studies, regional lymph nodes of the gallbladder were divided into first-echelon nodes (cystic duct or pericholedochal nodes), second-echelon nodes (node groups posterosuperior to the head of the pancreas or around the hepatic vessels), and more distant nodes. RESULTS: Among the 152 patients (total of 3352 lymph nodes retrieved, median of 19 per patient), 79 patients (52%) had 356 positive nodes. Among nodepositive patients, the prevalence of nodal metastasis was highest in the pericholedochal (54%) and cystic duct (38%) nodes, followed by the second-echelon node groups (29% to 19%), while more distant node groups were only rarely (5% or less) involved. Disease-specific survival after R0 resection differed according to the nodal status (P < 0.001): most node-negative patients achieved long-term survival (median, not reached; 5-year survival, 80%), whereas among nodepositive patients, 22 survived for more than 5 years (median, 37 mo; 5-year survival, 43%). CONCLUSION: The rational extent of lymphadenectomy for gallbladder cancer should include the first-and second-echelon nodes. A considerable proportion of node-positive patients benefit from such aggressive lymphadenectomy.

关键词：淋巴结肿大胆囊患者癌理性技术预后节点组

Effectiveness of microwave endometrial ablation combined with hysteroscopic transcervical resection in treating submucous uterine myomas

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World Journal of Clinical Cases 2022年第36期10卷 13200-13207页

作者： Toshiyuki Kakinuma Kaoru Kakinuma Ayano Shimizu Ayaka Kaneko Masataka Kagimoto Takafumi Okusa Eri Suizu Koyomi Saito yoshio Matsuda Kaoru Yanagida Nobuhiro Takeshima Michitaka Ohwada Department of Obstetrics and Gynecology International University of Health and Welfare HospitalNasushiobara 329-2763Japan

BACKGROUND Hypermenorrhea is characterized by excessive menstrual bleeding that causes severe anemia and interferes with everyday *** condition can restrict women’s social activities and decrease their quality of *** endometrial ablation(MEA)using a 2.45-GHz energy source is a minimally invasive alternative to conventional hysterectomy for treating hypermenorrhea that is resistant to conservative treatment,triggered by systemic disease or medications,or caused by uterine myomas and *** popularity of MEA has increased *** MEA can safely and effectively treat submucous myomas,some patients may still experience recurrent hypermenorrhea postoperatively and may require additional *** To investigate the efficacy of MEA combined with transcervical resection(TCR).METHODS Participants underwent cervical and endometrial *** resonance imaging and hysteroscopy were performed to evaluate the size and location of the *** was performed before MEA using a *** was performed using transabdominal *** variables included operation time,number of ablation cycles,length of hospital stay,and visual analog scale cores for hypermenorrhea,dysmenorrhea,and treatment satisfaction at 3 and 6 mo *** postoperative incidence of amenorrhea,changes in hemoglobin concentrations,and MEA-related complications were *** A total of 34 women underwent a combination of MEA and TCR during the study *** patients were excluded from the study as their histopathological tests identified uterine malignancies(uterine sarcoma and endometrial cancer).The 32 eligible women(6 nulliparous,26 multiparous)had a mean age of 45.2±4.3 years(range:36–52 years).Patients reported very severe hypermenorrhea(10/10 points on the visual analog scale)before the ***,after the procedure,the hypermenorrhea scores decreased to 1.2±1.3 and 0.9±1.3 at 3 and 6 mo,respectively(P<0.001)

关键词： Dysmenorrhea Endometrial ablation techniques Menorrhagia Microwaves Myoma Uterus