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New Neumerical Method to Calculate Time-Dependent Quantum Properties in Finite Temperature Based on the Heisenberg Equation of Motion

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Journal of Modern Physics 2012年第10期3卷 1537-1549页

作者： Shin-ichiro Kondo Department of Materials Science and Engineering Nagasaki University Nagasaki Japan

For the purpose of computer calculation to evaluate time-dependent quantum properties in finite temperature, we propose new numerical method expressed in the forms of simultaneous differential equations. At first we derive the equation of motion in finite temperature, which is found to be same expression as Heisenberg equation of motion except for the c-number. Based on this equation, we construct numerical method to estimate time-dependent physical properties in finite temperature precisely without using analytical procedures such as Keldysh formalism. Since our approach is so simple and is based on the simultaneous differential equations including no terms related to self-energies, computer programming can be easily performed. It is possible to estimate exact time-dependent physical properties, providing that Hamiltonian of the system is taken to be a one-electron picture. Furthermore, we refer to the application to the many body problem and it is numerically possible to calculate physical properties using Hartree Fock approximation. Our numerical method can be applied to the case even when perturbative Hamiltonians are newly introduced or Hamiltonian shows complex time-dependent behavior. In this article, at first, we derive the equation of motion in finite temperature. Secondly, for the purpose of verification and of exhibiting the usefulness, we show the derivation of gap equation of superconductivity and of sum rule of electrical conductivity and the application to the many body problem. Finally we apply this method to these two cases: the first case is most simplified resonance charge transfer neutralization of an ion and the second is the same process but impurity potential is newly introduced as perturbative Hamiltonian. Through both cases, it is found that neutralization process is not so sensitive to temperature, however, impurity potential as small as 10 meV strongly influences the neutralization of ion.

关键词： Heisenberg Equation of Motion Neumann Equation Time-Dependent Physical Properties Finite Temperature Numerical Solutions Simultaneous Differential Equations

Management and associated factors of delayed perforation after gastric endoscopic submucosal dissection

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World Journal of Gastroenterology 2015年第44期21卷 12635-12643页

作者： Haruhisa Suzuki ichiro Oda Masau Sekiguchi Seiichiro Abe Satoru Nonaka Shigetaka Yoshinaga Takeshi Nakajima Yutaka Saito Endoscopy Division National Cancer Center Hospital

AIM: To identify the actual clinical management and associated factors of delayed perforation after gastric endoscopic submucosal dissection(ESD).METHODS: A total of 4943 early gastric cancer(EGC) patients underwent ESD at our hospital between January 1999 and June 2012. We retrospectively assessed the actual management of delayed perforation. In addition, to determine the factors associated with delayed perforation, after excluding 123 EGC patients with perforations that occurred during the ESD procedure, we analyzed the following clinicopathological factors among the remaining 4820 EGC patients by comparing the ESD cases with delayed perforation and the ESD cases without perforation: age, sex, chronological periods, clinical indications for ESD, status of the stomach, location, gastric circumference, tumor size, invasion depth, presence/absence of ulceration, histological type, type of resection, and procedure ***: Delayed perforation occurred in 7(0.1%) cases. The median time until the occurrence of delayed perforation was 11 h(range, 6-172 h). Three(43%) of the 7 cases required emergency surgery, while four were conservatively managed without surgical intervention. Among the 4 cases with conservative management, 2 were successfully managed endoscopically using the endoloop-endoclip technique. The median hospital stay was 18 d(range, 15-45 d). There were no delayed perforation-related deaths. Based on a multivariate analysis, gastric tube cases(OR = 11.0; 95%CI: 1.7-73.3; P = 0.013) were significantly associated with delayed ***: Endoscopists must be aware of not only the identified factors associated with delayed perforation, but also how to treat this complicationeffectively and promptly.

关键词： Early gastric cancer Endoscopic submucosal dissect

橡胶隔振器有限元建模技术及静态弹性特性分析

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汽车工程 2002年第6期24卷 480-485页

作者：王利荣吕振华 Hagiwara ichiro 清华大学东京工业大学

以液阻型橡胶隔振器的橡胶主簧为研究对象 ,利用有限元分析软件ABAQUS和ADINA ,建立了轴对称、1/ 4对称和完整的三维有限元模型 ;进行了橡胶隔振器有限元建模技术的数值试验分析 ;探讨了橡胶材料体积近似不可压缩特性的数值确定方法、... 详细信息

以液阻型橡胶隔振器的橡胶主簧为研究对象 ,利用有限元分析软件ABAQUS和ADINA ,建立了轴对称、1/ 4对称和完整的三维有限元模型 ;进行了橡胶隔振器有限元建模技术的数值试验分析 ;探讨了橡胶材料体积近似不可压缩特性的数值确定方法、杂交单元计算稳定性的数值判断方法、单元类型的选择 (包括位移与压力节点的匹配方式及其插值函数阶次、单元积分形式等 )、橡胶材料的超弹性本构关系的确定等 ;阐述了基于有限元方法的橡胶隔振器大变形静态弹性特性有限元分析方法。所预测的橡胶主簧的垂向静态弹性特性与实测结果吻合较好。

关键词：橡胶隔振器有限元建模静态弹性特性汽车动力总成橡胶材料

Effect of SiO_(2)on loss of catalysis of inherent metallic species in CO_(2)gasification of coke from lignite

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Carbon Resources Conversion 2019年第1期2卷 13-22页

作者： Cheolyong Choi U.P.M.Ashik Shinji Kudo Kazuya Uebo Koyo Norinaga Jun-ichiro Hayashi Interdisciplinary Graduate School of Engineering Sciences Kyushu University6-1Kasuga KoenKasuga 816-8580Japan Institute for Materials Chemistry and Engineering Kyushu University6-1Kasuga KoenKasuga 816-8580Japan Process Research Laboratories Nippon Steel&Sumitomo Metal Corporation20-1ShintomiFuttsu 293-8511Japan Department of Materials Science and Engineering School of EngineeringNagoya UniversityNagoyaAichi 464-8601Japan Transdisciplinary Research and Education Center of Green Technology Kyushu University6-1Kasuga KoenKasuga 816-8580Japan

Inherent metallic species retained by coal char or coke,such as Na and Ca,behave as catalysts in *** char/coke normally contains inherent SiO_(2),which can react with the inherent catalysts to form silicates,resulting in catalyst deactivation over the range of pyrolysis,carbonization and gasification,and thereby reducing the char/coke *** present authors simulated the inherent catalyst deactivation experimentally by blending a Victorian lignite with SiO_(2),briquetting the SiO_(2)/lignite blend,carbonizing the briquette,and then gasifying the coke with CO_(2).The kinetic analysis of the gasification employed a comprehensive model,which assumed progress in parallel of non-catalytic and catalytic *** model quantitatively described the measured kinetics of the coke gasification with different SiO_(2)contents over a range of coke conversion up to 99.9%.The kinetic analysis revealed that the SiO_(2)deactivated substantial and entire portions of the most active catalyst and its precursor,respectively,before the gasification(i.e.,during the carbonization).The catalyst deactivation also occurred during the gasification,but mainly following a self-deactivation mechanism that involved no silicates formation.

关键词： Coke Lignite Reactivity CO_(2)gasification Inherent metallic species Catalyst Deactivation SiO_(2)

Low Loss Polarization Maintaining Photonic Crystal Fiber

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光学学报 2003年第S1期23卷 31-32页

作者： Masatoshi Tanaka Osamu Tohyama Syun-ichiro Yamaguchi Hirokazu Kubota Satoki Kawanishi Mitsubishi Cable Industries LTD4-3 IkejiriItamiHyogoJapanMitsubishi Cable IndustriesLTD4-3 IkejiriItamiHyogoJapanMitsubishi Cable IndustriesLTD4-3 IkejiriItamiHyogoJapanNTT Network Innovation LaboratoriesNTTCorporation1-1Hikarino-okaYokosukaJapanNTT Network Innovation LaboratoriesNTTCorporation1-1Hikarino-okaYokosukaJapan

A low loss polarization maintaining photonic crystal fiber has been fabricated. The fiber loss was 1.3 dB/km at 1550 nm. The polarization crosstalk for a 100-m fiber was -35 dB at 1550 nm.

关键词： PCF of on nm in as Low Loss Polarization Maintaining Photonic Crystal Fiber 双加 PM for

Hydrogen bond-assisted 1,2-cis O-glycosylation under mild hydrogenolytic conditions

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Chinese Chemical Letters 2023年第4期34卷 313-317页

作者： Gefei Li Yanlong Luo Juan Mo Masato Noguchi Jie Jing Zhenyang Luo Shin-ichiro Shoda Xin-Shan Ye College of Science Nanjing Forestry UniversityNanjing 210037China State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical SciencesPeking UniversityBeijing 100191China Department of Biomolecular Engineering Graduate School of EngineeringTohoku UniversitySendai 980-8579Japan

A hydrogen bond-assisted α-selective glycosylation reaction by using 4,6-dibenzyloxy-1,3,5-triazin-2-yl(DBT) β-glycosyl donors was developed for the efficient construction of 1,2-cis-α-glycosidic bond in natural products. This method was applied successfully to the direct synthesis of complex oligosaccharidederived glycolipids with simple protecting chemistry. Mechanistic studies using the NMR spectroscopy and DFT calculation provide a proof of concept for hydrogen bond-assisted glycosylation reaction towardsα-specific construction of O-glycosidic linkage.

关键词： O-Glycosylation Hydrogen bond α-Selectivity Glycolipid Natural product

Removal of Au(III) from Aqueous Au(III) Solution Using Microbial Cells by Biosorption and Biomineralization

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Advances in Microbiology 2021年第4期11卷 199-212页

作者： Takehiko Tsuruta ichiro Maeda Department of Life and Environmental Science Hachinohe Institute of Technology Hachinohe Japan

The demand for gold has increased in the medical and industrial fields. Therefore, recycling this element has become essential. Although gold recovery using microbes has been investigated, there is a dearth of these studies on identifying the species that have a high gold recovering ability. Herein, gold (III) removal by microbial cells was investigated to obtain basic information on gold (III) removal from aqueous systems by biosorption and biomineralization. High amounts of gold were removed from the solution containing hydrogen tetrachloroaurate (III) by the tested microbial species, which included bacteria, fungi and yeasts. However, relatively less gold was recovered by biosorption using gram-positive bacteria, fungi, and yeasts than that by gram-negative bacteria. Therefore, we first examined gold (III) removal by biosorption and biomineralization by Pseudomonas saccharophila, which was able to remove the largest amounts of gold (III). Incubation time and other factors affecting gold removal were then examined. P. saccharophila removed about half the amount of gold (III) by biosorption and the remaining half by biomineralization.

关键词： Gold (III) Biosorption Gold (0) Biomineralization Microorganism Peudomonas saccharophila

Development of a Stimulation System for the Gustatory Eye-Blink Response in Humans

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Journal of Behavioral and Brain Science 2016年第10期6卷 387-392页

作者： ichiro Ashida Yozo Miyaoka Department of Health and Nutrition Niigata University of Health and Welfare Niigata Japan

An inexpensive stimulation system for recording eye-blink responses elicited by taste stimuli has been developed using a manually controlled syringe and tasimetric sensor. The system requires neither an intra-oral device nor clamping of the head and tongue for natural eye-blink responses. The data recorded by the system have a high temporal resolution that is likely to be sufficient for the analysis of eye-blink responses based on video recordings.

关键词： Eye-Blink Taste Liquid Stimulation Device Tasimetric Sensor Human

Prognostic factors of minimally invasive surgery for gastric cancer: Does robotic gastrectomy bring oncological benefit?

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World Journal of Gastroenterology 2021年第39期27卷 6659-6672页

作者： Masaya Nakauchi Koichi Suda Susumu Shibasaki Kenichi Nakamura Shinichi Kadoya Kenji Kikuchi Kazuki Inaba ichiro Uyama Department of Gastroenterological Surgery Fujita Health UniversityToyoake 470-1192AichiJapan Department of Gastroenterological Surgery Ishikawa Prefectural Central HospitalKanazawa 920-8535IshikawaJapan

BACKGROUND Gastric cancer is the third leading cause of cancer-related death worldwide and surgical resection remains the sole curative treatment for gastric *** invasive gastrectomy including laparoscopic and robotic approaches has been increasingly used in a few *** far,only a few reports have investigated the oncological outcomes following minimally invasive *** To determine the 5-year survival following minimally invasive gastrectomy for gastric cancer and identify prognostic *** This retrospective cohort study identified 939 patients who underwent gastrectomy for gastric cancer during the study *** excluding 125 patients with non-curative surgery(n=77),other synchronous cancer(n=2),remnant gastric cancer(n=25),insufficient physical function(n=13),and open gastrectomy(n=8),a total of 814 consecutive patients with primary gastric cancer who underwent minimally invasive R0 gastrectomy at our institution between 2009 and 2014 were retrospectively ***,5-year overall and recurrence-free survival were analyzed using the Kaplan–Meier method with the log-rank test and Cox regression analyses,while factors associated with survival were determined using multivariate *** Our analysis showed that age>65 years,American Society of Anesthesiologists(ASA)physical status 3,total or proximal gastrectomy,and pathological T4 and N positive status were independent predictors of both 5-year overall and recurrencefree ***,the included patients had a 5-year overall and recurrence-free survival of 80.3%and 78.2%,*** the 814 patients,157(19.3%)underwent robotic gastrectomy,while 308(37.2%)were diagnosed with pathological stage II or III ***,our findings showed that robotic gastrectomy was an independent positive predictor for recurrence-free survival in patients with pathological stage II/III[hazard ratio:0.56(0.33-0.96),P=0.035].Comparison of recurrence-fre

关键词： Laparoscopy Gastric cancer Minimally invasive surgery Prognostic factor Stomach neoplasms