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A review on the application of modified continuum models in modeling and simulation of nanostructures

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Acta Mechanica Sinica 2016年第1期32卷 83-100页

作者： K.f.Wang B.L.Wang T.kitamura Graduate School at Shenzhen Harbin Institute of Technology Department of Mechanical Engineering Kyoto University

Analysis of the mechanical behavior of nanos- tructures has been very challenging. Surface energy and non- local elasticity of materials have been incorporated into the traditional continuum analysis to create modified continuum mechanics models. This paper reviews recent advancements in the applications of such modified continuum models in nanostructures such as nanotubes, nanowires, nanobeams, graphenes, and nanoplates. A variety of models for these nanostructures under static and dynamic loadings are men- tioned and reviewed. Applications of surface energy and nonlocal elasticity in analysis of piezoelectric nanomateri- als are also mentioned. This paper provides a comprehensive introduction of the development of this area and inspires fur- ther applications of modified continuum models in modeling nanomaterials and nanostructures.

关键词： Surface elasticity Nonlocal continuum Nanotubes Nanobeams Nanoplates Modeling andsimulations

Indocyanine green plasma clearance rate and 99mTc-galactosyl human serum albumin single-photon emission computed tomography evaluated preoperative remnant liver

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World Journal of Clinical Cases 2022年第25期10卷 8844-8853页

作者： Kentaro Iwaki Satoshi Kaihara Ryosuke Kita Koji kitamura Hiroki Hashida Kenji Uryuhara Department of Surgery Kobe City Medical Center General HospitalKobe 650-0046HyogoJapan

BACKGROUND Preoperative evaluation of future remnant liver reserves is important for safe *** the remnant is small,preoperative portal vein embolization(PVE)is *** volume analysis has been the primary method of preoperative evaluation,although functional examination may be more *** have used the functional evaluation liver using the indocyanine green plasma clearance rate(KICG)and 99mTc-galactosyl human serum albumin single-photon emission computed tomography(99mTc-GSA SPECT)for safe *** To analyze the safety of our institution’s system for evaluating the remnant liver *** We retrospectively reviewed the records of 23 patients who underwent preoperative *** types of remnant liver KICG were defined as follows:Anatomical volume remnant KICG(a-rem-KICG),determined as the remnant liver anatomical volume rate×KICG;and functional volume remnant KICG(frem-KICG),determined as the remnant liver functional volume rate based on 99mTc-GSA SPECT×*** either of the remnant liver KICGs were>0.05,a hepatectomy was *** factors were *** defined the marginal group as patients with a-rem-KICG off-rem-KICG of>0.05 and compared the postoperative outcomes between the marginal and not marginal(both a-rem-KICG and f-rem-KICG>0.05)*** All 23 patients underwent planned *** hepatectomy,right trisectionectomy and left trisectionectomy were in 16,6 and 1 cases,*** mean of blood loss and operative time were 576 mL and 474 min,*** increased amount of frem-KICG was significantly larger than that of a-rem-KICG after PVE(0.034 vs 0.012,P=0.0273).The not marginal and marginal groups had 17(73.9%)and 6(26.1%)patients,*** complications of Clavian-Dindo classification grade II or higher and post-hepatectomy liver failure were observed in six(26.1%)and one(grade A,4.3%)patient,*** 90-d mortality was *** marginal group had no

关键词： 99mTc-galactosyl human serum albumin single-photon emission computed tomography Hepatectomy Indocyanine green Indocyanine green plasma clearance rate Liver function evaluation Remnant liver reserve

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利用化学键方法寻找新型光学晶体(英文)

人工晶体学报 2004年第4期33卷 605-612页

作者：薛冬峰 Betzler Klaus Hesse Hartmut kitamura Kenji Ratajczak Henryk 王继扬大连理工大学化工学院 Universitt Osnabrück Fachbereich Physik D-49069 Osnabrück Germany Advanced Materials Laboratory National Institute for Materials Science 1-1 Namiki Tsukuba Ibaraki 305-0044 Japan faculty of Chemistry University of Wroclaw ul. F. Joliot-Curie 14 50-383 Wroclaw Poland Institute of Low Temperature and Structure Research Polish Academy of Sciences P.O. Box 937 50-950 Wroclaw 2 Poland 山东大学晶体材料研究所

利用化学键的观点定量地研究了一些具有各种晶体结构实用材料的介电性质。采用已建立的化学键方法 ,分析了这些晶体的介电性质与其组成化学键之间的关系。更进一步 ,基于晶体的化学键方法提出了一个组合方法用于定量确定具有相似晶体结... 详细信息

利用化学键的观点定量地研究了一些具有各种晶体结构实用材料的介电性质。采用已建立的化学键方法 ,分析了这些晶体的介电性质与其组成化学键之间的关系。更进一步 ,基于晶体的化学键方法提出了一个组合方法用于定量确定具有相似晶体结构材料的介电性质。从目前的工作中可以推导出光学晶体非线性起源的结构信息 ,因此可以在一定程度上帮助人们开展非线性光学晶体工程的研究工作。

关键词：化学键光学晶体介电性质非线性光学光学材料

factor Structure and Measurement Invariance of the Japanese Version of the Mother-to-Infant Bonding Scale

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Advances in Reproductive Sciences 2023年第4期11卷 159-170页

作者： Mami Yamamoto fumie Takauma Katsuhiko Tada Kaori Baba Toshinori kitamura Graduate School of Nursing Science St. Luke’s International University Tokyo Japan Toubi Branch Bizen Public Health Center Okayama Japan Department of Obstetrics and Gynaecology National Hospital Organization Okayama Medical Centre Okayama Japan Unit for Mental Health Promotion Research Center for Social Science & Medicine Tokyo Metropolitan Institute of Medical Science Tokyo Japan kitamura Institute of Mental Health Tokyo Tokyo Japan kitamura KOKORO Clinic Mental Health Tokyo Japan T. and f. kitamura foundation for Studies and Skill Advancement in Mental Health Tokyo Japan Department of Psychiatry Graduate School of Medicine Nagoya University Nagoya Japan

Background: Bonding disorders affect the growth and development of infants. In Japan, the Japanese version of the Mother-to-Infant Bonding Scale (MIBS-J) is widely used for early detection of bonding disorders. Repeated use of a questionnaire has problems of reduced validity. In order to correctly detect bonding disorders at multiple time points, it is necessary to confirm the measurement invariance of the scale. Baba et al. reported that invariance of the MIBS-J factor structure could only be obtained by abridging the scale into three items. Purpose: The aim of this study was to 1) confirm the factor structure and measurement invariance of the MIBS-J between two measurement times and 2) to examine factors that can be used without being affected by measurement time in order to identify item that contribute to measure met invariance. Methods: We analysed the data of 1049 and 878 mothers with a neonate collected in two waves: 5 days (Wave 1) and 1 month postpartum (Wave 2). Exploratory and confirmatory factor analyses were conducted on the data randomly divided into two groups in each wave. Results: The three-item model (MIBS-J items 1, 6, and 8) was most accepted. Measurement invariance and structural invariance were confirmed in the model. This was consistent with Baba et al.’s model. Conclusion: The three MIBS-J items showed measurement invariance and structural invariance in Japanese mothers during 1 month postpartum.

关键词： Bonding Disorders Mother-to-Infant Bonding Scale factor Analysis Measurement Invariance

Efficacy of forced coagulation with low high-frequency power setting during endoscopic submucosal dissection

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World Journal of Gastroenterology 2017年第29期23卷 5422-5430页

作者： Tsukasa Ishida Takashi Toyonaga Yoshiko Ohara Tadao Nakashige Yasuaki kitamura Ryusuke Ariyoshi Hiroshi Takihara Shinichi Baba Tetsuya Yoshizaki fumiaki Kawara Shinwa Tanaka Yoshinori Morita Eiji Umegaki Namiko Hoshi Takeshi Azuma Division of Gastroenterology Department of Internal Medicine Graduate School of Medicine Kobe University Department of Endoscopy Kobe University Hospital Department of Endoscopy Kishiwada Tokushukai Hospital

To investigated the hemostatic ability of the S and f1-10 methods in clinical and ex vivo studies. METHODSThe hemostatic abilities of the two methods were analyzed retrospectively in all six gastric endoscopic submucosal dissection cases. The treated vessel diameter, compressed vessel frequency, and bleeding frequency after cutting the vessels were noted by the recorded videos. The coagulation mechanism of the two power settings was evaluated using the data recording program and histological examination on macro- and microscopic levels in the ex vivo experiments using porcine tissues. RESULTSf1-10 method showed a significantly better hemostatic ability for vessels ≥ 2 mm in diameter and a trend of overall better coagulation effect, evaluated by the bleeding rate after cutting the vessels. f1-10 method could sustain electrical current longer and effectively coagulate the tissue wider and deeper than the S method in the porcine model. CONCLUSIONf1-10 method is suggested to achieve a stronger hemostatic effect than the S method in clinical procedures and ex vivo models.

关键词： Endoscopic submucosal dissection Electrosurgery Endoknife Hemostatic effect The forced coagulation mode

Malignant Triton Tumor in the Abdominal Wall: A Case Report

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Advances in Molecular Imaging 2013年第2期3卷 9-13页

作者： Yoshiyuki kitamura Koichiro Abe Shingo Baba Takuro Isoda Yasuhiro Maruoka Yoshio Matsuo Yuichiro Kubo Akio Sakamoto Hiroshi Nishimura Masayuki Sasaki Hiroshi Honda Department of Anatomic Pathology Pathological Sciences Graduate School of Medical Sciences Kyushu University Fukuoka Japan Department of Clinical Radiology Kyushu University Hospital Fukuoka Japan Department of Clinical Radiology Saiseikai Futsukaichi Hospital Fukuoka Japan Department of Health Sciences Graduate School of Medical Sciences Kyushu University Fukuoka Japan Department of Orthopaedic Surgery Kyushu University Hospital Fukuoka Japan

Malignant triton tumor (MTT) is a rare variant of malignant peripheral nerve sheath tumor (MPNST) with rhabdomyosarcomatous differentiation. We report the case of a 54-year-old male without a history of neurofibromatosis type 1 (Nf1) who had a growing abdominal wall tumor diagnosed as MTT. Computed tomography (CT), magnetic resonance imaging (MRI) and 2-[f-18]-fluoro-2-deoxy-D-glucose positron emission tomography/CT (fDG-PET/CT) were performed. The MRI and fDG-PET/CT indicated that the lateral component of the tumor was composed of many proliferative cells, corresponding to the histopathological finding of a cellular proliferation of spindle-shaped cells. In light of this case and previous reports, it is apparent that fDG-PET/CT is a helpful tool for distinguishing MTT from benign peripheral nerve sheath tumor.

关键词： Malignant Triton Tumor (MTT) Malignant Peripheral Nerve Sheath Tumor (MPNST) 2-[f-18]-fluoro-2-Deoxy-D-Glucose Positron Emission Tomography/Computed Tomography (fDG-PET/CT)