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AZ31镁合金板冷拉深变形特点

桂林电子科技大学学报 2006年第5期26卷 385-389页

作者：杨连发迁浩和森谦一郎桂林电子科技大学机电工程学院丰桥技术科学大学工学部生产工学系

在室温条件下,对最常用的镁合金AZ31板材在经过不同的退火热处理后进行冷拉深试验研究中,借助有限元数值模拟技术对其拉深变形过程进行分析,探索其冷拉深变形特点及规律,并合理解释在拉深过程中的载荷特点、破裂形态、极限拉深比、各向... 详细信息

在室温条件下,对最常用的镁合金AZ31板材在经过不同的退火热处理后进行冷拉深试验研究中,借助有限元数值模拟技术对其拉深变形过程进行分析,探索其冷拉深变形特点及规律,并合理解释在拉深过程中的载荷特点、破裂形态、极限拉深比、各向异性现象、厚度分布规律以及退火工艺条件、模具结构及尺寸对它们的影响规律。

关键词：板成形镁合金冷拉深极限拉深比数值模拟分析

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新型超高强度钢零件热冲压技术(英文)

中国有色金属学会会刊：英文版 2012年第S2期22卷 496-503页

作者： ken-ichiro mori Department of Mechanical Engineering Toyohashi University of Technology

为克服现今热冲压的难题,开发了一种高强度钢零件的新型热冲压技术。利用快速电阻加热,该热冲压技术所需的设备比电炉加热的设备更简单。与传统液压加工相比,该工艺采用机械伺服高速冲压可以提高成形性。通过具有局部旁路电阻加热的剪... 详细信息

为克服现今热冲压的难题,开发了一种高强度钢零件的新型热冲压技术。利用快速电阻加热,该热冲压技术所需的设备比电炉加热的设备更简单。与传统液压加工相比,该工艺采用机械伺服高速冲压可以提高成形性。通过具有局部旁路电阻加热的剪切模具,制备了具有不同强度分布的零件。局部电阻加热使得剪切区的流变应力减小,从而使模具淬火钢零件和超高强钢板的剪切更容易。通过对杯壁进行电阻加热,利用热齿键成型技术制备了超高强度钢齿轮盖。同时,还通过热冲压成型制备了汽车用中空导流槽。一次热压成形工艺包括电阻加热、成形、剪切和模具冷却等流程,该工艺适用于相对较小的高强度钢零件。

关键词：热冲压超高强度钢模具淬火剪切模淬火齿键成型管成型一次成型

Self-excited oscillation of spinning solar sails utilizing solar radiation pressure

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Astrodynamics 2020年第3期4卷 177-192页

作者： Yuki Takao Osamu mori Jun'ichiro Kawaguchi Department of Aeronautics and A stronautics The University of TokyoTokyo 113-8654Japan Institute of Space and Astronartical Science Japan Aerospace Exploration AgencySagamihara 252-5210Japan

The present paper proposes a control method to excite spinning solar sail membranes for three-dimensional *** optical property switching,the input is given as the change in magnitude of the solar radiation *** resonance point of this system varies with the vibration state due to its nonlinearity and the change in equilibrium *** deal with this,a state feedback control law that automatically tracks the resonance point is developed in the present *** proposed method enables decentralized control of the actuators on the sail,each of which determines the control input independently using only the information of vibration *** proposed method is validated using numerical *** results show that the nonlinear system behaves differently from the linear system,and the vibration grows using the decentralized control regardless of resonance point variation.

关键词： solar sail solar radiation pressure vibration mode self-excited oscillation mechanical resonance decentralized control

It is time to abandon the Milan criteria

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Hepatobiliary Surgery and Nutrition 2019年第1期8卷 56-58页

作者： Tomoharu Yoshizumi ken Shirabe Masaki mori Department of Surgery and Science Graduate School of Medical SciencesKyushu UniversityFukuokaJapan Department of General Surgical Science Gunma University Graduate School of MedicineGunmaJapan

Hepatocellular carcinoma(HCC)is the fifth most common neoplasm worldwide and the third most common cause of cancer-related *** transplantation(LT),which offers the theoretical advantage of removing both the tumor and the organ that are at risk of developing future malignancy,is an established therapy for HCC in patients with liver cirrhosis.A shortage of cadaveric organs for transplantation continues to impair our ability to provide LT despite progress in surgical techniques and ***,it is important to allocate the deceased donor livers with excellent results,and to ensure reasonable outcome for living donors who need to undergo invasive surgery.

关键词： organs Liver surgery

Conservative Medroxyprogesterone Acetate Therapy in Early Stage of Endometrial Carcinoma Associated with Phosphatase and Tensin Homolog Expression

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Open Journal of Pathology 2017年第1期7卷 1-12页

作者： kenji Niwa Minako mori Tatsuhiko Miyazaki Takuji Tanaka ken-ichiro morishige Department of Obstetrics & Gynecology Gujo City Hospital Gujo City Japan Department of Obstetrics & Gynecology Gifu University Graduate School of Medicine Gifu City Japan Section of Pathology Gifu University Hospital Gifu University Graduate School of Medicine Gifu City Japan Department of Diagnostic Pathology & Research Center of Diagnostic Pathology Gifu Municipal Hospital Gifu City Japan

Young patients with the endometrial cancer IA who desire to preserve fertility, can select the conservative therapy with progestin. However, the therapy involves risks of progression and relapse. We examined immunohistochemical analyses of phosphatase and tension homolog (PTEN) and p53 expressions to predict the early relapse, and pregnancy and delivery. Twenty women with endometrial cancer, FIGO IA (1988) (FIGO staging was essentially defined post-surgically), instead of the pathogical specimen before surgery without myometrial invasion were estimated by MRI under 40 years at Gifu University Hospital, Japan from 1988 to 2009. Patients were treated with medroxyprogesterone acetate (MPA, 400 - 600 mg/day) for 4 - 10 months, with whole wall endometrial curettage performed every four weeks. Response to the therapy, pregnancy, delivery and relapse of disease during follow-up over a 72-month period. Immunohistochemical expression of PTEN and p53 was also evaluated with pregnancy, delivery and relapse rate. All patients had pathological complete remissions within 4 - 10 months. Relapse rate was high (60%) in more than 72 months. Immunohistochemical PTEN retain in tumor cells before MPA treatment (8/10) was significant better correlation with pregnancy and delivery rate than of lost cases (1/5) in non-obese women (P < 0.05). Conservative therapy is feasible in carefully selected young women with endometrial cancer without myometrial invasion. However, the relapse rate was high. In cases who desire to be a pregnant, an earlier infertility treatment may be considered especially for PTEN loss especially in nonobese cases.

关键词： Endometrial Cancer Medroxyprogesterone Acetate Conservative Therapy High Relapse Rate PTEN Retain

Extended therapy duration for therapy-refractory hepatitis C patients with genotype 2

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World Journal of Gastroenterology 2013年第34期19卷 5754-5758页

作者： ken Sato Masatoshi Yanagisawa Hiroaki Hashizume Yuichi Yamazaki Norio Horiguchi Satoru Kakizaki Masatomo mori Department of Medicine and Molecular Science Gunma University Graduate School of Medicine

We devised an extended 72-wk peginterferon--2a/ribavirin therapy regimen for the retreatment of highly intractable cases,i.e.,48-wk peginterferon--2b/ribavirin therapy-intractable *** 2 cases achieved a rapid virological response to 72-wk peginterferon--2a/ribavirin therapy,1 case failed to achieve a sustained virological *** the reason for this difference in the effectiveness of 72-wk peginterferon--2a/ribavirin therapy between the cases was unclear,the rebound phenomenon of serum transaminase after48-wk peginterferon--2b/ribavirin therapy and the resultant lower viral load compared to that before 48-wk peginterferon--2b/ribavirin therapy might have influenced the treatment ***,it may be beneficial to consider the rebound phenomenon of serum transaminase and the changes in viral load resulting from previous interferon-based therapy and then cau-tiously determine the indication and the timing of the administration of 72-wk peginterferon--2a/ribavirin in highly intractable *** studies should be performed to confirm this strategy.

关键词： Hepatitis C Genotype 2 and high viral loads Interferon-based therapy Highly intractable case Extended therapy duration

Does laparoscopic liver resection for colorectal liver metastases provide a true survival benefit compared with open liver resection?

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Hepatobiliary Surgery and Nutrition 2020年第5期9卷 657-660页

作者： Shinichi Akahoshi Toru Beppu Yasuhisa mori Koichi Kinoshita Nobutaka Sato ken Kikuchi Department of Surgery Yamaga City Medical CenterKumamotoJapan Department of Surgery and Oncology Graduate School of Medical SciencesKyushu UniversityFukuokaJapan Adviser Sakurajuji HospitalKumamotoJapan

The recent Southampton consensus guideline and two previous international consensus meetings held in Louisville and morioka in 2008 and 2014,respectively have recommended laparoscopic liver resection(LLR)as a standard procedure for selected patients with colorectal liver metastases(CRLM)(1-3).The Oslo-CoMet and LapOpHuva studies are the only two randomized controlled trials(RCTs)that have provided solid evidence showing that LLR is a safer,less invasive,and more cost-effective approach with higher health-related quality of life and oncological outcomes equivalent to those of open liver resection(OLR)for patients with CRLM(4-6).

关键词： resection colorectal metastases

Effects of tropical forest conversion into oil palm plantations on nitrous oxide emissions:A meta-analysis

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Journal of Forestry Research 2023年第3期34卷 865-869页

作者： Taiki mori Kyushu Research Center Forestry and Forest Products Research InstituteFFPRIKurokami 4-11-16Kumamoto 860-0862Japan

Oil palm plantations have dramatically expanded in tropical Asia over the past *** their establishment has been projected to increase nitrous oxide(N_(2)O)emissions,earlier reports have shown inconsistent *** study analyzed these previously published data to compare N_(2)O emissions in oil palm plantations to reference forests.A linear mixed-eff ects model was used to examine the signifi cance of the eff ect of establishing oil palm plantations on N_(2)O emissions,rather than to calculate mean eff ect sizes because of limitations in the data *** results indicated that N_(2)O emissions were signifi cantly greater from oil palm plantations than from reference forests,as *** is the fi rst study to report the eff ect of oil palm plantations on N_(2)O emissions by synthesizing previously published *** quantify the size of this eff ect,additional studies with frequent and long-term monitoring data are needed.

关键词： Meta-analysis Nitrogen fertilization Nitrous oxide Oil palm plantation Tropical forest

Advances in titanium alloys and orthopedic implants:new titanium alloys and future research directions

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Bio-Design and Manufacturing 2024年第6期7卷 1053-1054页

作者： Yu mori Naoko mori Department of Orthopaedic Surgery Tohoku University Graduate School of MedicineSendai 980-8574Japan Department of Radiology Akita University Graduate School of MedicineAkita 010-8543Japan

Dear Editor,We read with great interest the article by Tan et ***“Accelerated fracture healing by osteogenic Ti45Nb implants through the PI3K-Akt signaling pathway”[1].This research thoroughly examines the bone-forming capabilities of the Ti45Nb *** in vitro studies revealed that the Ti45Nb alloy enhances the osteogenic differentiation of MC3T3-E1 cells more effectively than Ti6Al4V alloy controls,showing no noticeable cytotoxic effects.

关键词： Ti6Al4V alloy