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Electrochemical capacitance-voltage characterization of plasma-doped ultra-shallow junctions

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Frontiers of Electrical and Electronic Engineering in China 2008年第1期3卷 116-119页

作者： Huizhen WU Guoping RU Yonggang ZHANG Chengguo JIN Bunji mizuno Yulong JIANG Xinping QU Bingzong LI Department of Microelectronics Fudan UniversityShanghai 200433China State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050China Ultimate Junction Technologies Inc. 3-1-1YagumonakamachiMoriguchiOsaka 570-8501Japan

Ultra-shallow Si p^(+)n junctions formed by plasma doping are characterized by electrochemical capacitance-voltage(ECV).By comparing ECV results with those of secondary ion mass spectroscopy(SIMS),it is found that the dopant concentration profiles in heavily-doped p+layer as well as junction depths measured by ECV are in good agreement with those measured by ***,the ECV measurement of dopant concentration in the underlying lightly doped n-type substrate is significantly influenced by the upper heavily-doped *** ECV technique is also easy to control and *** ECV results of ultra-shallow junctions(USJ)formed by plasma doping followed by different annealing processes show that ECV is capable of reliably characterizing a Si USJ with junction depth as low as 10 nm,and dopant concentration up to 10^(21) cm^(-3).Also,its depth resolution can be as fine as 1 ***,it shows great potential in application for characterizing USJ in the sub-65 nm technology node CMOS devices.

关键词： electrochemical capacitance-voltage ultrashallow junction dopant concentration

Case of severe alcoholic hepatitis treated with granulocytapheresis

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World Journal of Clinical Cases 2016年第11期4卷 369-374页

作者： Yukari Watanabe Kenya Kamimura Tomohiro Iwasaki Hiroyuki Abe Shunsaku Takahashi Ken-ichi mizuno Manabu Takeuchi Atsushi Eino Ichiei Narita Shuji Terai Division of Gastroenterology and Hepatology Graduate School of Medical and Dental SciencesNiigata University Japan Labor Health and Welfare Organization Tsubame Rosai Hospital Division of Clinical Nephrology and Rheumatology Graduate School of Medical and Dental SciencesNiigata University

Severe alcoholic hepatitis(AH) has a high mortality,and it is associated with encephalopathy,acute renal failure,sepsis,gastrointestinal bleeding,and *** 28-d mortality remains poor(34%-40%),because no effective treatment has been ***,corticosteroids(CS) have been considered effective for significantly improving the prognosis of those with AH,as it prevents the production of pro-inflammatory ***,CS are not always appropriate as an initial therapeutic option,such as in cases with an infection or resistance to *** describe a patient with severe AH complicated by a severe infection caused by the multidrug resistance bacteria(Pseudomonas aeruginosa),and was successfully treated with granulocytapheresis monotherapy without using *** experience of this case will provide understanding of the disease and information treating cases without using CS.

关键词： Apheresis Hepatitis Alcoholic Alcoholic hepatitis Case reports

Explanation vs Performance in Data Mining: A Case Study with Predicting Runaway Projects

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Journal of Software Engineering and Applications 2009年第4期2卷 221-236页

作者： Tim MENZIES Osamu mizuno Yasunari TAKAGI Tohru KIKUNO 不详

Often, the explanatory power of a learned model must be traded off against model performance. In the case of predict-ing runaway software projects, we show that the twin goals of high performance and good explanatory power are achievable after applying a variety of data mining techniques (discrimination, feature subset selection, rule covering algorithms). This result is a new high water mark in predicting runaway projects. Measured in terms of precision, this new model is as good as can be expected for our data. Other methods might out-perform our result (e.g. by generating a smaller, more explainable model) but no other method could out-perform the precision of our learned model.

关键词： Explanation Data Mining Runaway

DIMMABLE ELECTRONIC BALLAST FOR HIGH WATTAGE METAL HALIDE LAMP

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DIMMABLE ELECTRONIC BALLAST FOR HIGH WATTAGE METAL HALIDE LA...

Partial Volume Effect on MR Elastography

The First Tripartite Lighting SCI-TECH Forum of China,Japan and Republic of Korea

作者： TERAYAMA,lchirou UMEZAWA,yoshihisa OOSATO,tomokazu KENMOTSU,Yoshitaka EYE Lighting Systems Corporation

＜正＞This paper presents a commercialized dimmable electronic ballast for 1000 W matal halide （MH） lamp and its *** ballast is a three-stage power *** is composed of boost converter to achive high power factor,buck converter to control lamp power,and an inverter to supply the lamp with low-frequency square-wave current. The power of 1000 W MH lamp can be varied linearly in the range from 70% to 100% with control signal *** current distortion and high efficiency of the ballast （94%） are achieved. Furtheremore,an application of the ballast in a factory with high ceiling is demonstorated.

关键词： electronic ballast dimming metal halide lamp low-frequency square-wave

来源： cnki会议评论

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Open Journal of Medical Imaging 2017年第4期7卷 131-143页

作者： Daiki Ito tomokazu Numano Kazuyuki Mizuhara Toshikatsu Washio Masaki Misawa Naotaka Nitta Department of Radiological Science Graduate School of Human Health Science Tokyo Metropolitan University Tokyo Japan Health Research Institute National Institute of Advanced Industrial Science and Technology Tsukuba Japan Office of Radiation Technology Keio University Hospital Tokyo Japan Department of Mechanical Engineering Tokyo Denki University Tokyo Japan

Magnetic resonance elastography (MRE) allows the quantitative assessment of the stiffness of tissues based on the tissue response to oscillatory shear stress. Shear wave displacements of the tissues are encoded as phase shifts and converted to stiffness (elastogram). Generally, a partial volume effect occurs when different materials are encompassed on the same voxel. In MRE, however, the partial volume effect occurs even if the voxel is filled with the same materials because wave displacements due to vibrations are spatially distributed. The purpose of this study was to investigate how the partial volume effect can affect the phase shift and the elastogram in MRE. We assumed that the partial volume effect appears only in the slice thickness direction and performed a simulation and MRE experiment with various slice thicknesses (1 - 19 mm), two types of imaging plane (coronal and axial) and two types of vibration frequency (100 and 200 Hz). The results of the simulation and the MRE experiment were similar, and indicated that the phase shift and the elastogram changed variously depending on the slice thickness, the wave pattern and the vibration frequency, even if the voxel was filled with the same material. To reduce the partial volume effect, it is necessary to perform the MRE under the following conditions: Use a wave pattern which barely causes this artefact, a smaller voxel size and a lower vibration frequency.

关键词： Magnetic Resonance Elastography Partial Volume Effect Artefact Elasticity Viscoelasticity

Processing and Characterization of Bulk FeSe

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Journal of Electrical Engineering 2016年第3期4卷 109-115页

作者： Miryala Muralidhar tomokazu Hanai Kouichi Furutani Pavel Diko Milos Jirsa Masato Murakami SRL Graduate School of Science and Engineering Shibaura Institute of Technology Tokyo 135-8548 Japan Institute of Experimental Physics SAS Watsonova 49 SK-04353 Kosice Slovak Republic Institute of Physics CAS Na Slovance 2 CZ-18221 Praha 8 Czech Republic

We investigated the effect of processing conditions on the structure and physical properties of the polycrystalline samples of Ca0.8Fe2Se2 prepared via solid state reaction. X-ray diffraction showed that the main phase became FeSe when the sintering temperature increased above 350 ℃. The temperature dependence of magnetization （M-T curves） recorded in zero-field-cooled mode by SQUID magnetometer showed some bumps at around 120 K to 140 K. These bumps moved to lower temperatures when the processing temperature increased above 550 ℃. On the other hand, pure FeSe materials produced at 900 ℃ for 24 h showed a sharp superconducting transition Tconset = 8.16 K and the critical current density of 6,252 A/cm2 at 5 K, self-field. SEM results indicated an enhanced grain connectivity.

关键词： Ca0.8Fe2Se2 FeSe X-ray diffraction magnetization measurements SEM EDX analysis.

Low Temperature Direct Bonding between PEEK （Polyetheretherketone） and Pt via Vapor-Assisted Vacuum Ultraviolet Surface Modification

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材料科学与工程（中英文B版） 2017年第2期7卷 49-62页

作者： Weixin Fu Akitsu Shigetou Shuichi Shoji Jun mizuno Department of Nanoscience and Nanoengineering Waseda University 3-4-1 Okubo Shinjuku-ku Tokyo 169-8555 Japan National Institute for Material Science OVIMS) 1-1 Namiki Tsukuba Ibaraki 305-0044 Japan Institute for Nanoscience and Nanotechnology Waseda University 513 Tsurumaki-cho Shinjuku-ku Tokyo 162-0041 Japan

Apparent Diffusion Coefficient Mapping Using a Multi-Shot Spiral MRI Sequence of the Rat Brain

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Open Journal of Radiology 2014年第1期4卷 13-24页

作者： tomokazu Numano Koji Hyodo Naotaka Nitta Junichi Hata Nobuaki Iwasaki Kazuhiro Homma Department of Pediatrics Ibaraki Prefectural University of Health Sciences Ibaraki Japan Department of Radiological Science Tokyo Metropolitan University Tokyo Japan National Institute of Advanced Industrial Science and Technology Tsukuba Japan Department of Radiology The University of Tokyo Hospital Tokyo Japan National Institute of Advanced Industrial Science and Technology Tsukuba Japan

Purpose: Commonly used diffusion weighted (DW) imaging such as DW spin echo (SE) type echo planar imaging (DW-SE-EPI) is known to be a snapshot-like acquisition and to have a relatively high signal-to-noise ratio. Spiral MRI sequence (SPIRAL) has characteristics similar to these of EPI, but it has rarely been used for diffusion-weighted imaging (DWI). In vivo DW-SPIRAL of the rat brain has almost never been reported. Our purpose in this study was to examine the potential of SE-type two-dimensional (2D) multi-shot spiral acquisition MRI for apparent diffusion coefficient (ADC) mapping of the rat brain in vivo. Materials and Methods: We made an SE-type DW-2D-spiral MRI sequence (DW-SPIRAL) which was prepared on a 2.0-T animal-experiment MR scanner. Comparing the phantom experimental result of DW-SPIRAL with the phantom experimental result of DW SE-type echo-planar imaging (DW-SE-EPI) and conventional DW spin echo imaging (DW-SE), we estimated the characteristics of DW-SPIRAL and assessed the clinical application of DW-SPIRAL in an animal experiment on the rat brain. Results: There was not much difference between the calculated water/glycerol phantom diffusion coefficient of DW-SPIRAL and the calculated diffusion coefficient of DW-SE. This result shows that the DW-SPIRAL sequence is appropriate for use in diffusion weighted imaging. There were fewer phantom image distortions and ghosting artifacts with DW-SPIRAL than with DW-SE-EPI, and this tendency was similar in the animal experiment on the rat brain. Conclusion: The DW-SPIRAL sequence had been successfully tested in phantom experiments and rat brain experiments. It has been demonstrated that the DW-SPIRAL sequence is capable of producing in vivo rat brain DWI.

关键词： Diffusion Weighted Imaging (DWI) Echo Planner Imaging (EPI) Spiral MRI Sequence Apparent Diffusion Coefficient (ADC)

endoscopic ultrasonography-guided biliary drainage:Who,when,which,and how?

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World Journal of Gastroenterology 2016年第3期22卷 1297-1303页

作者： Kazuo Hara Kenji Yamao Nobumasa mizuno Susumu Hijioka Hiroshi Imaoka Masahiro Tajika Tutomu Tanaka Makoto Ishihara Nozomi Okuno Nobuhiro Hieda Tukasa Yoshida Yasumasa Niwa Department of Gastroenterology Aichi Cancer Center HospitalNagoya 464-8681Japan Department of Endoscopy Aichi Cancer Center HospitalNagoya 464-8681Japan

Both endoscopic ultrasonography(EUS)-guided choledochoduodenostomy( EUS- CDS) and EUS-guided hepaticogastrostomy(EUS-HGS) are relatively well established as alternatives to percutaneous transhepatic biliary drainage(PTBD). Both EUSCDS and EUS-HGS have high technical and clinical success rates(more than 90%) in high-volume centers. Complications for both procedures remain high at 10%-30%. Procedures performed by endoscopists who have done fewer than 20 cases sometimes result in severe or fatal complications. When learning EUSguided biliary drainage(EUS-BD), we recommend a mentor's supervision during at least the first 20 cases. For inoperable malignant lower biliary obstruction, a skillful endoscopist should perform EUS-BD before EUS-guided rendezvous technique(EUS-RV) and PTBD. We should be select EUS-BD for patients having altered anatomy from malignant tumors before balloon-enteroscope-assisted endoscopic retrograde cholangiopancreatography, EUS-RV, and PTBD. If both EUS-CDS and EUS-HGS are available, we should select EUS-CDS, according to published data. EUSBD will potentially become a first-line biliary drainage procedure in the near future.

关键词： endoscopic ultrasonography endoscopicultrasonography-guided biliary drainage Interventionalendoscopic ultrasonography endoscopic ultrasonography-guided choledochoduodenostomy endoscopicultrasonography-guided rendezvous technique