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World Journal of Gastroenterology 2007年第15期13卷 2179-2182页

作者： atsushi minami Shinji Hirose Tomohiro Nomoto Shoichiro Hayakawa Internal Medicine Kawasaki Kyodo Hospital 2-1-5 Sakuramoto Kawasaki City 210-0833Japan

AIM： TO introduce a new method： small endoscopic sphincterotomy （ES） combined with endoscopic papillary large balloon dilation （SES ＋ EPLBD） to treat patients with large biliary stones.METHODS： Retrieval of large biliary stones was performed in 88 patients. Mean stone size was 14 ± 3 mm and mean number of stones was 2.5 ± 3.5. Firstly, ES with a small incision was performed. Next, endoscopic papillary dilation was performed with a large balloon to slowly match the size of the bile duct. Stones were then retrieved from the biliary duct with a balloon and a basket.RESULTS： Stone retrieval was successful in all cases except one cystic duct stone case without the need to crush large stones. Mean procedure time was 30 ± 5 min. Dilating the papillary orifice with a large balloon made it possible to remove large stones smoothly without crushing them. After dilation with the large balloon, there were some instances of oozing, but no perforations. One instance of post-procedural pancreatitis （1%） occurred. CONCLUSION： SES ＋ EPLBD was effective for the retrieval of large biliary stones without the use of mechanical lithotripsy.

关键词： Endoscopic sphincterotomy Endoscopic papillary dilation Bile duct stone

Initial experience with robot-assisted adrenalectomy for giant adrenal tumors

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Asian Journal of Urology 2024年第3期11卷 507-508页

作者： Takayuki Ohzeki Hiroyuki Kita Remon Kunishige Taiji Hayashi Tsukasa Nishioka Koichi Sugimoto Takafumi minami Kazutoshi Fujita Department of Urology Izumi City General Hospital4-5-1 WakechoIzumiOsaka 594-0073Japan Department of Urology Kaizuka City Hospital10-20 Hori 3-chomeKaizukaOsaka 594-0073Japan Department of Urology Kindai University Faculty of Medicine377-2 Ohno-HigashiOsaka-SayamaOsaka 589-8511Japan

Dear Editor,Adrenocortical carcinomas and adrenal cysts,including pseudocysts,are uncommon tumors[1,2].No consistent approach to surgery for large adrenal tumors including cysts,has been established,and especially when malignancy is suspected,consideration is still given to the option of *** robot-assisted surgery,we successfully performed the resection of a giant adrenal pseudocyst and a giant adrenocortical carcinoma,as reported previously[3],underlining the advantages of robot-assisted surgery for large adrenal tumors.

关键词： adrenal tumors surgery

A minimized fluorescent chemosensor array utilizing carboxylate-attached polythiophenes on a chip for metal ions detection

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Frontiers of Chemical Science and Engineering 2022年第1期16卷 72-80页

作者： Yui Sasaki Xiaojun Lyu Zhoujie Zhang Tsuyoshi minami Institute of Industrial Science The University of TokyoTokyo 153-8505Japan

Chemosensor arrays have a great potential for on-site applications in real-world ***,to fabricate on chemosensor array a number of chemosensors are required to obtain various optical patterns for multianalyte ***,we propose a minimized chemosensor array composed of only two types of carboxylate-functionalized polythiophene derivatives for the detection of eight types of metal *** recognition of the metal ions,the polythiophenes exhibited changes in their fluorescence intensity and various spectral *** both chemosensors have the same polymer backbone and recognition moiety,only the difference in the number of methylene groups contributed to the difference in the fluorescence response ***,the metal ions in aqueous media were successfully discriminated qualitatively and quantitatively by the chemosensor microarray on the glass *** study offers an approach for achieving a minimized chemosensor array just by changing the alkyl chain lengths without the necessity for many receptors and reporters.

关键词： metal ions polythiophene chemosensor array fluorescence pattern recognition

Simultaneous Oxidization of NO_x and SO_2 by a New Non-thermal Plasma Reactor Enhanced by Catalyst and Additive

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Plasma Science and Technology 2008年第1期10卷 53-56页

作者： Heejoon KIM 韩军 Yuhei SAKAGUCHI Wataru minami Department of Ecological Engineering Toyohashi University of Technology Hnbei Province Key Laboratory of Coal Conversion and New Carbon Materials Wuhan University of Science and Technology

The non-thermal plasma as one of the most promising technologies for removing NOx and SO2 has attrm^ted much attention. In this study, a new plasma reactor combined with catalyst and additive was developed to effectively oxidize and remove NOx and SO2 in the flue gas. The experimental results showed that TiO2 could improve the oxidation efficiency of SO2 in the case of applying plasma while having a negative effect on the oxidation process of NO and NOx. With the addition of NH3, the oxidation rates of NOx, NO and SO2 were slightly increased. However, the effect of adding NH3 on NOx oxidation was negative when the temperature was above 200℃.

关键词： additive catalyst NOx SO2 oxidation rate plasma

N Cycle, N Flow Trends in Japan, and Strategies for Reducing N_2O Emission and NO_3^- Pollution

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Pedosphere 2005年第2期15卷 164-172页

作者： K.minami National Institute for Agro-Environmental Sciences

To feed an increasing population, large amounts of chemical nitrogen fertilizer have been used to produce much of our food, feed and fiber thereby increasing nitrogen levels in soils, natural waters, crop residues, livestock wastes,and municipal and agricultural wastes, with national and international concern about its potential adverse effects on environmental quality and public health. To understand these phenomena and problems, first the nitrogen cycle and the environment are described. Then recent trends for nitrogen cycling through the food and feed system, N2O emissions from fertilized upland and paddy soils, and NO-3 pollution in ground water in Japan are reported. Finally, mitigation strategies in Japan for reducing N2O emission and NO-3 pollution are proposed, including nitrification inhibitors, controlled release fertilizers, utilization of plant species that could suppress nitrification, utilizing the toposequence, government policy, and appropriate agricultural practices. Of all the technologies presented, use of nitrification inhibitors and controlled release fertilizers are deemed the most important with further development of these aspects of technologies being expected. These practices, if employed worldwide, could help reduce the load, or environmental deterioration, on the Earth's biosphere.

关键词： mitigation strategy N2O emission NO3- pollution nitrogen cycle

Multilayer Graphene-Coated Silicon Carbide Nanowire Formation Under Defocused Laser Irradiation

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Nanomanufacturing and Metrology 2023年第3期6卷 12-28页

作者： Kanon minami Kyosuke Kobinata Jiwang Yan Department of Mechanical Engineering Faculty of Science and TechnologyKeio UniversityHiyoshi 3-14-1KohokuYokohama223-8522Japan DISCO Corporation 13-11 Omori-Kita 2-ChomeOta-KuTokyo143-8580Japan

Graphene-coated silicon carbide(SiC@C)core-shell nanostructures have attracted attention in the fields of energy storage and *** this study,multilayer graphene-coated silicon carbide(SiC)nanowires were obtained through the laser irradiation of a mixture target of graphite powder and silicon(Si)grinding sludge discharged from Si wafer *** irradiation was performed using an ytterbium(Yb)fiber pulsed laser with a pulse width of 10 ms and a wavelength of 1070 nm with various defocus *** effect of laser defocusing on the morphology of the generated nanostructures was *** showed that nanowires were produced under the defocused conditions,and nanoparticles were observed at the on-focus *** products obtained under all defocused conditions showed a core-shell structure,and the SiC nanowires were covered by graphene *** aspect ratio of the nanowires increased with the defocus *** of the laser-induced plume using a high-speed camera showed that when the laser was defocused,the plume propagation speed slowed down,and the shape of the plume changed to a swirling *** nanowire formation was closely related to the propagation speed and shape variation of the *** successful production of SiC@C core-shell nanowires from Si waste opens up the possibility of the sustainable development of new materials for energy storage and nanoelectronics.

关键词： Nanomaterial Laser irradiation Silicon carbide Nanowire Silicon sludge Core-shell structure Multilayer graphene

Preparation of LiTi_2(PO_4)_3 by the Sol-gel Method and Investigation of Its Formation Process

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Chemical Research in Chinese Universities 1999年第2期15卷 13-17页

作者： ZHU Jishun Tohge Noboru minami Tsutomu Department of Chemistry Shanghai Normal UniversityShanghai200234 Department of Applied Chemistry University of Osaka Prefecture4804MozuumemachiSakaishiOsaka 591Japan

In this study,a novel solgel method has been developed to prepare LiTi2(PO4)3 lithium ion conductor as monophase at relatively low temperature(600).According to the XRD and IR analysis,the asprepared sample remained an amorphous state up to *** activation energy was calculated to be 252 kJ/mol according to the modified Kissinger equation.

关键词： Lithium ion conductor LiTi2(PO4)3 Sol-gel method Crystallization process LiTi2(PO4)3, Solgel method, Crystallization process

Simulation of Stable Crack Growth for Welded Joints Including Strength Mismatching

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Journal of Materials Science & Technology 1999年第6期15卷 567-570页

作者： Jing, HY Luo, LX Zhang, YF minami, F Tianjin Univ Coll Mat Sci & Engn Tianjin 300072 Peoples R China Osaka Univ Osaka Japan

A 3-D computational method to simulate stable growth of a macroscopic crack under model condition is described in this paper. The Gurson-Tvergaard plasticity model for voided materials describes the damage process. Fixed-sized, computational cell elements (containing voids) defined over a thin layer at the crack plane simulate the ductile crack extension. Outside of this layer, the material remains undamaged by the void growth, follows the conventional J2 flow theory. The micromechanics parameters controlling crack growth are D, the thickness of computational cell layer and f(0), the initial void porosity. Calibration of these parameters proceeds through analyses of ductile tearing to match R-curve obtained from testing of deep notch bend specimens for welded joints. The effect of the strength mismatching on ductile crack growth for welded joints is simulated also.

关键词： Joints (structural components)

Numerical Investigation on Fracture Initiation Properties of Interface Crack in Dissimilar Steel Welded Joints

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Chinese Journal of Mechanical Engineering 2020年第3期33卷 142-149页

作者： Longfei Zhao Chendong Shao Yasuhito Takashima Fumiyoshi minami Fenggui Lu Shanghai Key Laboratory of Materials Laser Processing and Modification School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghaiChina Joining and Welding Research Institute Osaka UniversityOsakaJapan

Fracture toughness property is of significant importance when evaluating structural *** current research of fracture toughness mainly focused on crack in homogeneous material and experimental *** the crack is located in a welded joint with high-gradient microstructure and mechanical property distribution,it becomes difficult to evaluate the fracture toughness behavior since the stress distribution may be affected by various *** recent years,numerical method has become an ideal approach to reveal the essence and mechanism of fracture toughness *** study focuses on the crack initiation behavior and driving force at different interfaces in dissimilar steel welded *** stress and strain fields around the crack tip lying at the interfaces of ductile-ductile,ductile-brittle and brittle-brittle materials are analyzed by the numerical *** the interface of ductile-ductile materials,the strain concentration on the softer material side is responsible for ductile fracture *** the ductile-brittle interface,the shielding effect of the ductile material plays an important role in decreasing the fracture driving force on the brittle material *** the case of brittle-brittle interface,a careful matching is required,because the strength mismatch decreases the fracture driving force in one side,whereas the driving force in another side is *** results are deemed to offer support for the safety assessment of welded structures.

关键词： Dissimilar steel welded joint Fracture initiation Interface Strength mismatch Numerical simulation

Highly selective detection of copper(Ⅱ) by a “ligand-free” conjugated copolymer in nucleophilic solvents

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Frontiers of Chemical Science and Engineering 2020年第1期14卷 105-111页

作者： Weixing Deng Pengfei Sun Quli Fan Lei Zhang Tsuyoshi minami Key Laboratory for Organic Electronics and Information Displays&Jiangsu Key Laboratory for Biosensors Institute of Advanced Materials(IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)Nanjing University of Posts&TelecommunicationsNanjing 210023China Institute of Industrial Science The University of TokyoMeguro-kuTokyo 153-8505Japan

The synthesis of N-cyclohexyl carbamate-attached fluorene-alt-phenylene copolymer(PFPNCC)and the use of PFPNCC as a“ligand-free”fluorescent chemosensor for Cu(Ⅱ)are *** of Cu(Ⅱ)can efficiently quench the fluorescence of PFPNCC in nucleophilic solvents such as DMF and DMSO,but not in low nucleophilic solvents such as 1,4-dioxane and ***-visible spectra of the mixture of the conjugated polymer and Cu(Ⅱ)indicate the presence of a reduced Cu(Ⅰ)ion in the ***,fluorescence recovery of PFPNCC observed at low temperature suggests that the quenching and reducing mechanism is most probably due to a photo-induced electron transfer from excited PFPNCC to Cu(Ⅱ).Our findings provide a novel strategy for highly selective conjugated polymer-based chemosensors for various target analytes,albeit“ligand-free”.

关键词： ligand-free fluorescent chemosensor copper photo-induced electron transfer