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Detailed Analysis of the Transient Voltage in a JT-60SA PF Coil Circuit

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Plasma Science and Technology 2013年第2期15卷 148-151页

作者： k. YAMAUCHI k. shimada T. TERAk.DO M. MATSUk.WA R. COLETTI A. LAMPASI E. GAIO A. COLETTI L. NOVELLO Japan Atomic Energy Agency 801-1 Mukoyama Naka Ibaraki 311-0193 Japan ENEA 1-00044 Frascati Rome Italy Consorzio RFX Euratom-ENEA Association C.so Stati Uniti 4Padova Veneto 35127Italy Fusion for Energy Boltzmannstr 2Garching Bavaria 85748 Germany

A superconducting coil system is actually complicated by the distributed parameters, e.g. the distributed mutual inductance among turns and the distributed capacitance between adjacent conductors. In this paper, such a complicated system was modeled with a reasonably simplified circuit network.with lumped parameters. Then, a detailed circuit analysis was conducted to evaluate the possible voltage transient in the coil circuit. As a result, an appropriate （minimum） snubber capacitance for the Switching Network.Unit, which is a fast high voltage generation circuit in JT-60SA, was obtained.

关键词： JT-60SA power supply transient voltage snubber PSIM

Mission of the National Cancer Center Hospital in Japan to promote clinical trials for precision medicine

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Cancer Biology & Medicine 2024年第1期21卷 1-3页

作者： k.zuak. shimada k.nichi Nak.mura Noboru Yamamoto Department of Hepatobiliary and Pancreatic Surgery National Cancer Center HospitalTokyo 104-0045Japan Clinical Research Support Offce National Cancer Center HospitalTokyo 104-0045Japan Department of Experimental Therapeutics National Cancer Center HospitalTokyo 104-0045Japan

Precision medicine is a growing field *** its potential benefit to many patients,several major obstacles must be overcome before precision medicine can be more widely used in clinical *** main obstacles are associated... 详细信息

关键词： clinical Cancer overcome

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具有皮肤屏障功能的MPC聚合物

国际纺织导报 2008年第8期36卷 7-8,10,11页

作者： M. Mitani H. Yamamoto k. shimada 喻长远（译）申熠（校） NOF公司日本不详

Lipidure的第一个效能是使人的细胞和组织柔软。根据保护人体皮肤的效能介绍了MPC聚合物,该聚合物是Lipidure的主要成分。介绍了用Lipidure改性的纺织品。MPC聚合物不仅具有降低毒性作用和抗刺激效能,而且用Lipidure改性的纺织品提高了... 详细信息

Lipidure的第一个效能是使人的细胞和组织柔软。根据保护人体皮肤的效能介绍了MPC聚合物,该聚合物是Lipidure的主要成分。介绍了用Lipidure改性的纺织品。MPC聚合物不仅具有降低毒性作用和抗刺激效能,而且用Lipidure改性的纺织品提高了皮肤的屏障性能。

关键词： MPC聚合物性能皮肤屏障功能

A Comparative Study of Two Tree-Based Models for Predicting Flyrock.Velocity at Open Pit Bench Mining

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Open Journal of Applied Sciences 2024年第2期14卷 267-287页

作者： Ezatullah Rawnaq Bassir Esmatyar Ak.hiro Hamanak. Tak.shi Sasaok. Hidek. shimada Department of Earth Resources Engineering Kyushu University Fukuoka Japan Department of Mining and Mineral Engineering Suleyman Demirel University Isparta Türkiye

Blasting is a cost-effective technique to break.hard rock.volumes by using explosives in the mining and civil engineering realms. Moreover, although blasting is a designed process and plays an indispensable role in these industries, it can also have multiple adverse environmental impacts. One such effect is flyrock. which poses risk. to nearby machinery, and residential structures, and can even lead to injuries or fatalities. To optimize blasting efficiency as well as restrict side effects, prediction of the blast aftereffects is vital. Therefore, the present work.focuses on using two machine learning methods to predict the velocity of flyrock.in the open pit mine. To address this issue, a comprehensive dataset was gathered from the open pit mine. Then, Decision Tree and Random Forest algorithms were employed to predict flyrock.velocity. The Random Forest model demonstrated superior performance compared to the Decision Tree model. Nonetheless, the performance of the Decision Tree model was deemed satisfactory, as evidenced by its coefficient of determination value of 0.83, mean squared error (MSE) of 4.2, and mean absolute percentage error (MAPE) of 5.6%. Considering these metrics, it is reasonable to conclude that tree-based algorithms can be effective in predicting flyrock.velocity.

关键词： Flyrock Machine Learning Bench Blasting Coefficient of Determination

胼胝体的角度在诊断特发性正常压力脑积水中的临床影响

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国际医学放射学杂志 2009年第1期32卷 93-93页

作者： k. Ishii T. k.nda A. Harada N. Miyamoto T. k.waguchi k. shimada 李志明 Department of Radiology and Nuclear Medicine HyogoBrain and Heart Center 520 Saisho -Ko Himeji Hyogo 670 -0981 Japan

研究胼胝体角度的测量在诊断特发性正常压力脑积水（INPH）中的价值。对34例INPH病人、34例阿尔茨海默病（AD）病人及34例正常对照组（NC）受试者进行三维MRI检查。在后联合垂直于前后联合平面的冠状位MRI上测量所有受试者胼胝体的角度... 详细信息

研究胼胝体角度的测量在诊断特发性正常压力脑积水（INPH）中的价值。对34例INPH病人、34例阿尔茨海默病（AD）病人及34例正常对照组（NC）受试者进行三维MRI检查。在后联合垂直于前后联合平面的冠状位MRI上测量所有受试者胼胝体的角度。INPH组病人的胼胝体角度（平均值±标准差：66°±14°）显著小于AD组（104°±15°）及NC组（121°±11°）。

关键词：胼胝体角度特发性正常压力脑积水 MRI 阿尔茨海默病

The Fundamentals Underlying the Computations of Acceleration for General Dynamic Applications:Issues and Noteworthy Perspectives

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Computer Modeling in Engineering & Sciences 2015年第2期104卷 133-158页

作者： M.shimada A.Hoitink.k.k.Tamma Department of Mechanical Engineering University of Minnesota111 Church St.SEMinneapolisMN55455USA.

To-date,with the exception of the Newmark.method and the midpoint rule,most computational algorithms under the umbrella of LMS methods,which are predominantly employed in research and commercial software fail to properly evaluate acceleration computations accurately for conducting the numerical dynamic ***,this is not trivial and a sound theoretical basis of the fundamental underlying issues is described in *** this paper,we provide a resolution and point-out several noteworthy perspectives to address the proper evaluation of acceleration computations for structural dynamics applications with focus on the class of LMS methods as an illustration.

关键词： acceleration trivial illustration

Rational double points on Enriques surfaces

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Science China Mathematics 2021年第4期64卷 665-690页

作者： Ichiro shimada Department of Mathematics Graduate School of ScienceHiroshima UniversityHigashi-Hiroshima 739-8526Japan

We classify,up to some lattice-theoretic equivalence,all possible configurations of rational double points that can appear on a surface whose minimal resolution is a complex Enriques surface.

关键词： Enriques surface rational double points hyperbolic lattice

A Conceptual Design Study for the Error Field Correction Coil Power Supply in JT-60SA

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Plasma Science and Technology 2013年第3期15卷 257-260页

作者： M.MATSUk.WA k.shimada k.YAMAUCHI E.GAIO A.FERRO L.NOVELLO Japan Atomic Energy Agency 801-1 MukoyamaNakaIbaraki 311-0193Japan Consorzio RFX-EURATOM ENEA Association C.so Stati Uniti 435127 PadovaItaly Fusion for Energy Boltzmannstr 2 Garching 85748Germany

This paper describes a conceptual design study for the circuit configuration of the Error Field Correction Coil （EFCC） power supply （PS） to maximize the expected performance with reasonable cost in JT-60SA. The EFCC consists of eighteen sector coils installed inside the vacuum vessel, six in the toroidal direction and three in the poloidal direction, each one rated for 30 k.-turn. As a result, star point connection is proposed for each group of six EFCC coils installed cyclically in the toroidal direction for decoupling with poloidal field coils. In addition~ a six phase inverter which is capable of controlling each phase current was chosen as PS topology to ensure higher flexibility of operation with reasonable cost.

关键词： JT-60SA error field correction coil power supply inverter multi-phase

Dynk.n diagrams of rank.20 on supersingular k. surfaces

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Science China Mathematics 2015年第3期58卷 543-552页

作者： shimada Ichiro ZHANG De-Qi Department of Mathematics Graduate School of Science Hiroshima University Department of Mathematics National University of Singapore

We classify normal supersingular k.3 surfaces Y with total Milnor number 20 in characteristic p,where p is an odd prime that does not divide the discriminant of the Dynk.n type of the rational double points on *** pap... 详细信息

关键词： supersingular k. surface supersingular k. surface normal k. surface