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Influence of Fine Sediment on the Fluidity of Debris Flows

Journal of Mountain Science 2013年第2期10卷 233-238页

作者： Norifumi HOTTA takahiro kaneko Tomoyuki IWATA Haruo NISHIMOTO Faculty of Life and Environmental Sciences University of Tsukuba3058577 IbarakiJapan Faculty of Agriculture The University of Tokyo1138657 TokyoJapan Graduate School of Agricultural and Life Sciences The University of Tokyo1138657 TokyoJapan

Debris flows include a great diversity of grain sizes with inherent features such as inverse grading, particle size segregation, and liquefaction of fine sediment. The liquefaction of fine sediment affects the fluidity of debris flows, although the behavior and influence of fine sediment in debris flows have not been examined sufficiently. This study used flume tests to detect the effect of fine sediment on the fluidity of laboratory debris flows consisting of particles with various diameters. From the experiments, the greatest sediment concentration and flow depth were observed in the debris flows mixed with fine sediment indicating increased flow resistance. The experimental friction coefficient was then compared with the theoretical friction coefficient derived by substituting the experimental values into the constitutive equations for debris flow. The theoretical friction coefficient was obtained from two models with different fine-sediment treatments： assuming that all of the fine sediments were solid particles or that the particles consisted of a fluid phase involving pore water liquefaction. From the comparison of the friction coefficients, a fully liquefaction state was detected for the fine particle mixture. When the mixing ratio and particle size of the fine sediment were different, some other eases were considered to be in a partially liquefied transition state. These results imply that the liquefaction of fine sediment in debris flows was induced not only by the geometric conditions such as particle sizes, but also by the flow conditions.

关键词： Debris flow Fine sediment Friction coefficient Liquefaction Open channel Reynolds stress

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制作无牙颌种植即刻负载临时修复体的新型开窗式印模技术

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中国口腔医学继续教育杂志 2015年第5期18卷 258-263页

作者： takahiro kaneko Kiyoshi Yamagishi Norio Horie Tetsuo Shimoyama 华泽乾汤春波不详北京瑞尔齿科北京市朝阳区酒仙桥路18号颐堤港LG100 100621 南京医科大学附属口腔医院种植修复科南京市汉中路136号210005

目的：评估一种用于无牙颌患者种植即刻负载临时修复体制作的新型开窗式印模技术的临床疗效。材料与方法：在本回顾性研究中评估一种新型的开窗式印模技术．选择2006年3月到2009年10月之间接受治疗的患者。术前使用诊断义齿．并在该修... 详细信息

目的：评估一种用于无牙颌患者种植即刻负载临时修复体制作的新型开窗式印模技术的临床疗效。材料与方法：在本回顾性研究中评估一种新型的开窗式印模技术．选择2006年3月到2009年10月之间接受治疗的患者。术前使用诊断义齿．并在该修复体上制作新型开窗式托盘．种植体植入后，使用该托盘同时进行印模和咬合记录，手术当天戴入由技工室制作的螺丝固位的丙烯酸树脂临时修复体．自种植术后到最终修复体戴八期间对该临时修复体进行评估。结果：本研究中21位患者（平均年龄645岁），总共植入125颗种植体．其中104颗种植体即刻负载．所有患者的临时修复体适合性良好，修复体最少由4颗种植体支持。一例患者在术后30d发生临时修复体第一磨牙位置的牙尖断裂．但是．修复体支架无大的断裂或修复体功能不良．术后随访无种植体失败。结论：该治疗方法由于在正中咬合下制取印模．而且能够重建出与诊断性修复体相同的咬合，故而能够制作出适合性良好的种植体即刻负载的丙烯酸树脂临时修复体。

关键词：口腔种植无牙颌即刻负载临时修复体

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The morphological and electrophysiological features of GABAergic substantia gelatinosa neurons in the medullary dorsal horn of the GAD67GFP knock-in mouse

The morphological and electrophysiological features of GABAe...

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中国神经科学学会第四次会员代表大会暨第七届全国学术会议

作者： Furuta takahiro kaneko TAKESHI Department of Morphological Brain Science Graduate School of MedicineKyoto UniversityKyoto 606-8501Japan

＜正＞Morphological and electrophysiological features of the GABAergic substantia gelatinosa（SG） neurons in the caudal spinal trigeminal nucleus（the medullary dorsal horn;MDH） were examined in the GAD67-GFP knock-in mouse. Visually guided whole-cell patch-clamp recording and biocytin-injection combined with histochemical staining were Preformatted in horizontal *** results showed that 96%GABAergic SG neurons were intrinsic neurons that sent axons only to the MDH,and almost all of these intrinsic neurons had sparse axonal *** one GABAergic SG neuron was projection neuron that sent axons to regions outside the *** input resistance of GABAergic SG neurons averaged（564.51±45.98） MΩ,and the mean resting membrane potential was -62.99±7.97 *** stimulated by rectangular current injections,80%of GABAergic SG neurons showed tonic action potential generation pattern,20% showed initial bursting *** hyperpolarizing current pulses were injected,many（85%） GABAergic neurons showed hyperpolarizing *** the offset of the hyperpolarizing current pulses,rebound depolarizing humps with or without spikes often were observed in all of the GABAergic *** of spike frequency was observed in all of the GABAergic SG neurons in response to a maintained *** above results,we can deduce that most of the GABAergic SG neurons have similar morphology and electrophysiological *** results provide a base to elucidate the functional roles of this subgroup of GABAergic SG neurons,*** nociception.

关键词： medullary dorsal horn GAD67-GFP knock-in mouse GABA morphology electrophysiology

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Hematogenous umbilical metastasis from colon cancer treated by palliative single-incision laparoscopic surgery

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World Journal of Gastrointestinal Surgery 2013年第10期5卷 272-277页

作者： Tomohide Hori Noriyuki Okada Masaya Nakauchi Shuji Hiramoto Ayako Kikuchi-Mizota Masahisa Kyogoku Fumitaka Oike Hidemitsu Sugimoto Junya Tanaka Yoshiki Morikami Kaori Shigemoto Toyotsugu Ota Masanobu kaneko Masato Nakatsuji Shunji Okae takahiro Tanaka Daigo Gunji Akira Yoshioka Department of Surgery Mitsubishi Kyoto Hospital Department of Medical Oncology Mitsubishi Kyoto Hospital Department of Histopathology Mitsubishi Kyoto Hospital Department of Gastroenterology Mitsubishi Kyoto Hospital Department of Radiology Mitsubishi Kyoto Hospital Department of Internal Medicine Mitsubishi Kyoto Hospital

Sister Mary Joseph’s nodule(SMJN)is a rare umbilical nodule that develops secondary to metastatic *** malignancies are located in the abdomen or *** with SMJN have a poor *** 83-year-old woman presented to our hospital with a1-month history of a rapidly enlarging umbilical *** findings revealed advanced transverse colon *** tomography and fluorodeoxyglucose-positron emission tomography revealed tumors of the transverse colon,umbilicus,right inguinal lymph nodes,and left *** feeding arteries and drainage veins for the SMJN were the inferior epigastric *** findings of the left lung tumor allowed for identification of the primary lung cancer,and a diagnosis of advanced transverse colon cancer with SMJN and primary lung cancer was *** patient underwent local resection of the SMNJ and subsequent single-site laparoscopic surgery involving right hemicolectomy and paracolic lymph node ***-abdominal dissemination to the mesocolon was confirmed during ***,the transverse colon cancer was confirmed to be moderately differentiated tubular *** suspect that SMJN may occur via a hematogenous *** chemotherapy for colon cancer and thoracoscopic surgery for the primary lung cancer were scheduled,the patient and her family desired home *** months after surgery,she died of rapidly growing lung cancer.

关键词： Umbilicus Sister Mary Joseph Singleincision laparoscopic surgery Palliative operation Hematogenous metastasis

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