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Forestry Research 2021年第1期1卷 163-172页

作者： Daisuke Kabeya atsuhiro iio Yoshitaka Kakubari Qingmin Han Department of Plant Ecology Forestry and Forest Products Research Institute(FFPRI)1 MatsunosatoTsukubaIbaraki 305-8687Japan Faculty of Agriculture University of ShizuokaOhya 836Shizuoka 422-8529Japan University of Shizuoka

Although mature trees have substantial non-structural carbohydrate(NSC)storage that is well documented with respect to its capacity to buffer the asynchrony of supply and demand at the whole-plant level,its role in reproduction remains poorly understood,especially in mast seeding *** order to elucidate whether masting depletes the whole-tree NSC storage pool,seasonal and inter-annual variations in starch and soluble sugar(SS)concentrations in branchlets,stems and coarse roots of Fagus crenata were measured in two stands over 5 years after a full masting *** masting reduced individual storage pools to 72% and 49% of the maxima in the two stands;this was observed 2-3 years after full *** addition,temporary reduction in starch concentration in summer due to moderate fruiting was found in roots and deep sapwood cores of stems,representing tree rings formed 20 years ago,but not in *** with a higher starch storage pool in roots than in branchlets,these results indicate that starch stored in roots and stems is available and supports life-history traits,such as masting events,that occur ***,limited rainfall in the late growing season caused a reduction in both organ NSC concentration and individual storage irrespective of masting,which further complicated the masting-NSC *** findings have important implications for interpreting the role of carbon resources in masting events.

关键词： roots starch structural

Influence of Setting Condition on Characteristics of Savonius Hydraulic Turbine with a Shield Plate

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Journal of Thermal Science 2011年第3期20卷 224-228页

作者： Shouichiro iio Yusuke Katayama Fuminori Uchiyama Eiichi Sato Toshihiko Ikeda Faculity of Eng. Shinshu University4-17-1 WakasatoNaganoJAPAN380-8553 Student of Shinshu University 4-17-1 WakasatoNaganoJAPAN380-8553 Flowserve Niigata Worthington Co. Ltd.1-32 ShinbashiKashiwazakiNiigataJAPAN945-0056 Faculty of Eng. Niigata Institute of Technology1719 FujihashiKashiwazakiNiigataJAPAN945-1195

The aim of this investigation was to improve power performance of Savonius hydraulic turbine utilizing small stream for electric *** attempt was made to increase the power coefficient of runner by the use of flat shield plate placed upstream of the *** difference of the power coefficient is discussed in relation to clearance between the runner and the bottom wall and the rotation direction of the *** flow field around the runner was also examined visually to clarify influences of setting conditions on the power *** this study it was found that the power coefficient is achieved for 0.47 by only using a flat shield plate,the increase is up to 80% over the runner without the ***,it is the proper condition that clearance ratio is 0.73 in this study.

关键词： Nano-hydraulic turbine Savonius runner Shield plate Performance

Impact of Temperature in Summer on Emergency Transportation for Heat-Related Diseases in Japan

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Chinese Medical Journal 2018年第5期131卷 574-582页

作者： Yukie iio Manabu Akahane Tomoaki Imamura Department of Public Health Health Management and Policy Faculty of Medicine Nara Medical University Kashihara Nara Japan

Background： In Japan, the demand for emergency transportation for people with heat-related illness has recently increased. The purpose of this study was to investigate the relationship between incidents of heat-related illness and the daily maximum temperature. Methods： The daily maximum temperatures in Japan＇s 11 districts over the past 10 years were classified into four categories, with cutoff points at the 50th, 75th, 95th, and higher than 95th percentiles. We then conducted a logistic regression analysis of einergency transportation demand in each temperature category by age group, using the 50th percentile as tile reference category for each area. Results： There were 42,931 cases of emelgency transportation due to heat-related diseases during the study period. Classified by age. 12.5%, 43.4%, and 44.1% of cases involved children, adults, and elderly people, respectively. The analysis showed that the number of cases of emergency transportation for people with heat-related diseases （per 100,000 people; corresponding to a 1.0~C increase in the daily maximum temperature） was 0.016-0.106 among children （24.9-169.9 children required emergency transportation for heat-related diseases）, from 0.013 to 0.059 among adults （19.8 98.2 adults required emergency transportation）, and from 0.045 to 0.159 among elderly persons （30.0 145.4 elderly people required emergency transportation）. The risk was highest for elderly persons, followed by children and finally adults. Cases of emergency transportation due to heat-related illness increased by 2.4-8.9 times when the daily maximum temperature was approximately 1.5℃ above the mean daily maximum temperature. In fact, the daily maximum temperature had a larger effect than the daily relative humidity level oil emergency transportation for people with heat-related diseases. Conclusion： Public health organizations and health-care services should support elderly people and children, two high-risk groups for heat-related diseases.

关键词： Emergency Transportation Heat-Related Diseases Temperature

Safety and efficacy of self-expandable metallic stents in malignant small bowel obstructions

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World Journal of Gastroenterology 2016年第40期22卷 9022-9027页

作者： Akiyoshi Tsuboi Toshio Kuwai Tomoyuki Nishimura Sumio iio Takeshi Mori Hiroki Imagawa Toshiki Yamaguchi Atsushi Yamaguchi Hirotaka Kouno Hiroshi Kohno Department of Gastroenterology National Hospital Organization Kure Medical Center and Chugoku Cancer Center

In this report, we present 3 cases of malignant small bowel obstruction, treated with palliative care using endoscopic self-expandable metallic stent(SEMS) placement, with the aim to identify the safety and efficacy of this procedure. Baseline patient characteristics, procedure methods, procedure time, technical and clinical success rates, complications, and patient outcomes were obtained. All 3 patients had pancreatic cancer with small bowel strictures. One patient received the SEMS using colonoscopy, while the other 2 patients received SEMS placement via double balloon endoscopy using the through-the-overtube technique. The median procedure time was 104 min. The technical and clinical success rates were 100%. Post-treatment, obstructive symptoms in all patients improved, and a low-residue diet could be tolerated. All stents remained within the patients until their deaths. The median overall survival time(stent patency time) was 76 d. SEMS placement is safe and effective as a palliative treatment for malignant small bowel obstruction.

关键词： Self-expandable metallic stents Malignant small bowel obstructions Endoscopy Case report Pancreatic cancer

Characterization of Full-WDM-Band Photodiode Modules Using Raman Amplifiers in the U Band at 40 Gb/s

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光学学报 2003年第S1期23卷 447-448页

作者： Morio Wada Toshimasa Umezawa Takahiro Kudou Takashi Mogi Shinji iio Shinji Kobayashi Tsuyoshi Yakihara Akira Miura Corporate R&D Center Yokogawa Electric Co. JapanCorporate R&D Center Yokogawa Electric Co. JapanCorporate R&D Center Yokogawa Electric Co. JapanCorporate R&D Center Yokogawa Electric Co. JapanCorporate R&D Center Yokogawa Electric Co. JapanCorporate R&D Center Yokogawa Electric Co. JapanCorporate R&D Center Yokogawa Electric Co. JapanCorporate R&D Center Yokogawa Electric Co. Japan

We present the characteristics of a full-WDM-band photodiode module in 40 Gb/s U-band operation using a Raman amplifier. This module is suitable for wide-band transmission systems with the additional new channels in t... 详细信息

关键词： WDM for with Characterization of Full-WDM-Band Photodiode Modules Using Raman Amplifiers in the U Band at 40 Gb/s of in

Direct Numerical Simulation of a Jet Issuing from Rectangular Nozzle by the Vortex in Cell Method

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Open Journal of Fluid Dynamics 2013年第4期3卷 321-330页

作者： Tomomi Uchiyama Masahiro Kobayashi Shouichiro iio Toshihiko Ikeda EcoTopia Science Institute Nagoya University Nagoya Japan Faculty of Engineering Shinshu University Nagano Japan Graduate School of Information Science Nagoya University Nagoya Japan

Direct numerical simulation of a jet issuing from a nozzle having a rectangular cross-section is conducted. The vortex in cell (VIC) method, of which computational accuracy was heightened by the authors in a prior study, is used for the DNS. The aspect ratio of the nozzle cross-section is 15, and the Reynolds number based on the shorter side length of the nozzle exit is 6700. The turbulence statics, such as the mean velocity and the turbulence intensity, are favorably compared with the experimentally measured results. The behavior of the large-scale eddies as well as the development of the turbulent flow is also confirmed to agree with the measurement. These indicate that the authors’ VIC method is successfully employed for the DNS of rectangular jet.

关键词： Rectangular Jet Vortex in Cell Method DNS Vortical Structure

Numerical Simulation of Water Flow through Nano-Hydraulic Turbine Driven by Rapid and Shallow Stream

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Journal of Energy and Power Engineering 2014年第10期8卷 1663-1672页

作者： Tomomi Uchiyama Shou Uehara Shouichiro iio Toshihiko Ikeda Yukio Ide Eco Topia Science Institute Nagoya University Nagoya 464-8603 Japan Toyota Motor Corporation Toyota 471-8571 Japan Faculty of Engineering Shinshu University Nagano 380-8553 Japan

This study is concerned with the numerical simulation of the flow through an open type cross-flow runner of a nano-hydraulic turbine driven by rapid and shallow stream. It employs the two-dimensional particle method, which was used for the flow simulation of a small-scale hydraulic turbine of impulse-type in the prior study. The tip speed ratio 2, defined as the ratio of the runner tip speed to the water stream velocity upstream of the runner, ranges from 0.1 to 0.8. The simulated flow at 2 = 0.5 is confirmed to agree well with the experimentally visualized one. The effect of 2 on the flows inside the rotating cascade as well as around the runner is clarified. The turbine performance, calculated by using the simulated flow, is also highlighted to agree almost with the measurement. These demonstrate that the present simulation method is indeed applicable to the development of open type cross-flow runner of nano-hydraulic turbine utilizing rapid and shallow stream.

关键词： Nano-hydraulic turbine flow simulation turbine performance particle method.

Endoscopic submucosal dissection for early esophageal neoplasms using the stag beetle knife

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World Journal of Gastroenterology 2018年第15期24卷 1632-1640页

作者： Toshio Kuwai Toshiki Yamaguchi Hiroki Imagawa Ryoichi Miura Yuki Sumida Takeshi Takasago Yuki Miyasako Tomoyuki Nishimura Sumio iio Atsushi Yamaguchi Hirotaka Kouno Hiroshi Kohno Sauid Ishaq Department of Gastroenterology National Hospital Organization Kure Medical Center and Chugoku Cancer Center Department of Gastroenterology DGH SGU WI Birmingham City University

AIM To determine short-and long-term outcomes of endoscopic submucosal dissection(ESD) using the stag beetle(SB) knife, a scissor-shaped *** Seventy consecutive patients with 96 early esophageal neoplasms, who underwent ESD using a SB knife at Kure Medical Center and Chugoku Cancer Center, Japan, between April 2010 and August 2016, were retrospectively evaluated. Clinicopathological characteristics of lesions and procedural adverse events were assessed. Therapeutic success was evaluated on the basis of en bloc, histologically complete, and curative or non-curative resection rates. Overall and tumor-specific survival, local or distant recurrence, and 3-and 5-year cumulative overall metachronous cancer rates were also *** Eligible patients had dysplasia/intraepithelial neoplasia(22%) or early cancers(squamous cell carcinoma, 78%). The median procedural time was 60 min and on average, the lesions measured 24 mm in diameter, yielding 33-mm tissue defects. The en bloc resection rate was 100%, with 95% and 81% of dissections deemed histologically complete and curative, respectively. All procedures were completed without accidental incisions/perforations or delayed bleeding. During follow-up(mean, 35 ± 23 mo), no local recurrences or metastases were observed. The 3-and 5-year survival rates were 83% and 70%, respectively, with corresponding rates of 85% and 75% for curative resections and 74% and 49% for noncurative resections. The 3-and 5-year cumulative rates of metachronous cancer in the patients with curative resections were 14% and 26%, *** ESD procedures using the SB knife are feasible, safe, and effective for treating early esophageal neoplasms, yielding favorable short-and long-term outcomes.

关键词： Neoplasms Stag beetle knife Esophageal Endoscopic submucosal dissection Outcome measures

Effects of Clearance between Rotor and Ground on the Performance of an Open Cross-Flow-Type Nano-Hydraulic Turbine

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Journal of Energy and Power Engineering 2016年第8期10卷 465-473页

作者： Tomomi Uchiyama Shouhei Mizoguchi Shouichiro iio Yusuke Katayama Toshihiko Ikeda Institute for Materials and Systems for Sustainability Nagoya University Nagoya 464-8603 Japan Toyota Motor Corporation Toyota 471-8571 Japan Faculty of Engineering Shinshu University Nagano 380-8553 Japan

Flows through an open cross-flow-type nano-hydraulic turbine are numerically simulated to investigate the effects of the clearance Hc between the rotor and the ground on the turbine performance. A two-dimensional particle method is employed, which was successfully used for flow simulations of impulse-type and open cross-flow-type nano-hydraulic turbines in the authors＇ previous works. When the clearance Hc is smaller than a critical value, the simulated turbine performance decreases with decreasing Hc, in good agreement with the experiment. The simulations make it clear that such a reduction of turbine performance is attributable to an increase in the circumferential component of the water velocity at the rotor outlet. The simulations also demonstrate that the effect of the tip speed ratio of the rotor on the relation between Hc and turbine performance can be analyzed.

关键词： Nano-hydraulic turbine computer simulation waterfall particle method.

Suppression of Vortex Precession in a Non-Contact Handling Device by a Circular Column

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Journal of Flow Control, Measurement & Visualization 2016年第2期4卷 70-78页

作者： Shouichiro iio Katsuya Hayashi Eri Akahane Yusuke Katayama Xin Li Toshiharu Kagawa Department of Environmental Science and Technology Shinshu University Nagano Japan

Vortex levitation attains non-contact handling by injecting air through a tangential nozzle into a cylindrical cup generating the swirling flow. The precessing of the swirling flow causes pressure fluctuation. This phenomenon becomes apparent as the gap between the cup and workpiece increases, which significantly disturbs the stability of conveyance. In this paper, suppression of pressure fluctuation by a cylindrical column that stabilizes the vortex levitation is described and its mechanism is mentioned. According to the experimental set up, the pressure was measured at the center of the workpiece and the wall of the cup;velocity field under the work piece was visualized by PIV. The result suggested that the larger diameter column denoted the effect on suppression of the fluctuation because the precessing of the swirling flow became stable. On the other hand, variation of the column thickness had insignificant effect on suppressing the fluctuation, but sucking force became weakened since the swirling velocity decreased.

关键词： Non-Contact Handling Swirling Flow Pressure Fluctuation Visualization