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Evaluation of Important Factors Affecting Quench Distortion of Carburized Hypoid Gear with Shaft by Using Computer Simulation Methods

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材料热处理学报 2004年第5期25卷 480-485页

作者： Tsuyoshi Sugimoto Youichi watanabe Nissan Motor Co. Ltd. 6-1 Daikoku-cho Tsurumi Yokohama JapanNissan Motor Co. Ltd. 6-1 Daikoku-cho Tsurumi Yokohama Japan

To minimize quenching distortion and dispersion, carburizing and quenching process conditions must be optimized; this includes the parts racking design used for quenching. We investigated some factors affecting carburized quenching distortion with an experiment using a hypoid gear having a shaft and with numerical simulation methods. The experimental results and those obtained from simulation were generally in agreement. Focusing on the surface temperature distribution in the gear, we studied quenching distortion characteristics in terms of changes in tooth profile and helix deviation. In our experiments, distortions occur during quenching in 373 K oil after austenitized temperature treatments conducted with various attitudes. We calculated the distortions by simulating the carburized oil-quenching process for the hypoid gear. Our results show large differences between the cooling rates of the tooth toe, middle section, and heel edges, and these greatly influence the change in tooth profile and helix deviation. We found that reducing the differences in temperatures on the gear surfaces during quenching is most important for minimizing the quench distortion of the hypoid gear.

关键词：淬火变形螺旋偏差外形偏差冷却曲线传热系数准双曲面齿轮

Relapse of prostate cancer from the viewpoint of total gland volume kinetics theory

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Asian Journal of Andrology 2015年第6期17卷 904-907页

作者： Hiroki watanabe Director Watanabe Memorial Choumei ResearchLaboratory Shiga Japan Honorary Professor KyotoPrefectural University of Medicine and Meiji Universityof Integrated Medicine Kyoto Japan.

In many cases of prostate cancer, changes of prostate volume were measured very frequently after castration by means of transrectal ultrasound. For short-term observations, a factor called as ＂reduction time （tau [τ]）,＂ which means the time required for the volume of ＂effective portion＂（volume responded to castration） to be reduced to one-tenth of its original value, correlated very well with patients＇ prognosis. For long-term observations for relapse, changes of prostate volume could be divided clearly into two types, namely, ＂metastatic progressive type＂ with metastasis without volume increase and ＂local progressive type＂ with remarkable volume increase without metastasis. ＂τ＂ in the ＂local progressive type＂ was far shorter than that in the ＂metastatic progressive type.＂ Much longer survival was obtained when the patient belonged to the ＂local progressive type＂ than to the ＂metastatic progressive type.＂ Thus, ＂τ＂ was the most important and the most reliable factor to predict the prognosis. Based upon these observations, a schematic analysis of prostate cancer relapse was shown.

关键词： Relapse prostate theory

Effects of solar ultraviolet radiation on the photochemical efficiency, photosynthetic pigments and biomass production of Spirulina platensis

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Progress in Natural Science:Materials International 2005年第5期15卷 477-480页

作者： Teruo watanabe China Haikou 570102 Haikou International Commercial Centre 38 Hainan DIC Microalgae Co. Ltd.

Effects of solar ultraviolet radiation (UVR) on Spirulina platensis were studied by investigating its photochemical efficiency, photosynthetic pigments and biomass production while exposed to full spectrum solar radiation or depleted of UVR for understanding how and to what extent UVR influences its photosynthetic physiology and production. It was found that UVR brought about an extra inhibition of photochemical efficiency by 26%—30%. The greatest inhibition of photochemical efficiency in S. platensis was observed at noontime, and then recovered to some extent in late afternoon no matter which treatment they were exposed to. The contents of chlorophyll a, phycocyanin and carotenoids increased during initial stage of the exposure, but decreased with elongated exposure. UVR decreased the biomass yield by about 6%. It indicated that filtering out UVR of solar radiation would raise the productivity of S. platensis, which is an important factor that should be considered in the production.

关键词： ultraviolet radiation Spirulina platensis photochemical efficiency biomass production pigments.

Effects of dissolved organic matter on the growth and pigments synthesis of Spirulina platensis (Arthrospira)

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Progress in Natural Science:Materials International 2006年第1期16卷 50-54页

作者： watanabe Teruo China Hainan DIC Microalgae Co. Ltd. Haikou International Commercial Centre 38 Haikou 570102

Excessive accumulation of dissolved organic matter (DOM) in the culture ponds of Spirulina platensis is usually considered to be one of the potential factors affecting the production of S. platensis, however, we are not quite aware of effects of DOM on the growth and pigments synthesis of S. platensis. In the present study, S. platensis was grown in batch or semi-continuous cultures using the filtrate in the culture ponds that had not been renewed for years. It was found that disssolved organic carbon up to 60 mg/L did not bring about an inhibitory effect on the growth of S. platensis, but increased the contents of chlorophyll a and phycocyanin instead. However, further accumulation of dissolved organic matter could decrease the content of chlorophyll a .

关键词： Chl a dissolved organic matter PC specific growth rate Spirulina platensis (Arthrospira).

Basic design of beamline and polarization control

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Nuclear Science and Techniques 2006年第6期17卷 354-369页

作者： M.watanabe Shanghai Dianji University Shanghai 200240 China Institute of Composite MaterialsShanghai Jiaotong UniversityChina Saga University Synchrotron Light Application CenterJapan

The basic concept of synchrotron radiation beamlines for vacuum ultraviolet and X-ray experiments has been introduced to beginning users and designers of beamlines. The beamline defined here is composed of a front end, pre-mirrors, and a monochromator with refocusing mirrors, which are connected by beam pipes, providing monochromatic light for the experiments. Firstly, time characteristics of the synchrotron radiation are briefly reviewed. Secondly, the basic technology is introduced as the fundamental knowledge required to both users and designers. The topics are photoabsorption by air and solids, front ends and beam pipes, mirrors, monochromators, and filters. Thirdly, the design consideration is described mainly for the designers. The topics are design principle, principle of ray tracing, optical machinery and control, and vacuum. Fourthly, polarization control is considered. The topics are polarizers, polarization diagnosis of beamline, and circularly-polarized light generation. Finally, a brief summary is given introducing some references for further knowledge of the users and the designers.

关键词：基本设计光速线偏振控制同步加速器

EFFECTS OF MAGNETIC FIELD STRENGTH ON MICROSTRUCTURE AND TEXTURE EVOLUTION IN COLD-ROLLED INTERSTI-TIAL-FREE STEEL BY MAGNETIC FIELD ANNEALING

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Acta Metallurgica Sinica(English Letters) 2008年第2期21卷 103-108页

作者： T.watanabe Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education) Northeastern University

Effects of magnetic field strength on the evolution of recrystallization microstructure and recrystallization texture in cold-rolled interstitial-flee steel were investigated after annealing at 660℃ in a magnetic field up to 12 T. Magnetic annealing was found to retard recrystallization and induce recrystallized grains elongated along the magnetic field direction. An interesting phenomenon is that the magnetic field shows the strongest effect at 1 T.

关键词： Magnetic annealing Recrystallization Texture Interstitial-freesteel

Effect of in vitro interferon-beta administration on hepatitis C virus in peripheral blood mononuclear cells as a predictive marker of clinical response to interferon treatment for chronic hepatitis C

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World Journal of Gastroenterology 2004年第5期10卷 733-736页

作者： Kaori Mochizuki Tatehiro Kagawa Shinji Takashimizu Kazuya Kawazoe Sei-Ichiro Kojima Naruhiko Nagata Atsushi Nakano Yasuhiro Nishizaki Koichi Shiraishi masaru Itakura Norihito watanabe Tetsuya Mine Shohei Matsuzaki Department of Internal Medicine Division of GastroenterologyTokai University School of MedicineBohseidaiIsehara 259-1193Japan

AIM:To test whether in vitro incubation of peripheral blood mononuclear cells (PBMC) with interferon (IFN) could efficiently decrease hepatitis C virus-RNA (HCV-RNA) amount and to analyze whether this effect was associated with clinical response to ***:Twenty-seven patients with histologically proven chronic hepatitis C were given intravenous administration of 6 million units (MU) IFN-β daily for 6 weeks followed by three times weekly for 20 weeks. PBMC collected before IFN therapy were incubated with IFN-β and HCV-RNA in PMBC was semi-quantitatively ***: Twenty-five patients completed IFN *** patients (32%) had sustained loss of serum HCV-RNA with normal serum ALT levels after IFN therapy (complete responders).HCV-RNA in PBMC was detected in all patients,whereas it was not detected in PBMC from healthy *** vitro administration of IFN-β decreased the amount of HCV-RNA in PMBC in 18 patients (72%). Eight of these patients obtained complete response. On the other hand,none of the patients whose HCV-RNA in PBMC did not decrease by IFN-β was complete responders. Multiple logistic regression analysis revealed that the decrease of HCV-RNA amount in PBMC by IFN-β was the only independent predictor for complete response (P<0.05).CONCLUSION:The effect of in vitro IFN-β on HCV in PBMC reflects clinical response and would be taken into account as a predictive marker of IFN therapy for chronic hepatitis C.

关键词： Adult Antiviral Agents dosage Drug Resistance, Viral Female Hepacivirus Hepatitis C, Chronic Humans In Vitro Interferon-beta Leukocytes, Mononuclear Male Middle Aged Predictive Value of Tests RNA, Viral

Gene targeted and immune therapies for nodal and gastrointestinal follicular lymphomas

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World Journal of Gastroenterology 2023年第48期29卷 6179-6197页

作者： Takuya watanabe Department of Internal Medicine and Gastroenterology Watanabe Internal Medicine Aoyama ClinicNiigata 9502002Japan

Follicular lymphoma(FL)is the most common indolent B-cell lymphoma(BCL)***,its incidence has increased in Europe,the United States,and Asia,with the number of gastrointestinal FL cases expected to *** abnormalities related to t(14;18)translocation,BCL2 overexpression,NF-κB pathway-related factors,histone acetylases,and histone methyltransferases cause FL and enhance its ***,microRNAs are commonly used in diagnosing FL and predicting patient *** clinical trials on novel therapeutics targeting these genetic abnormalities and immunomodulatory mechanisms have been conducted,resulting in a marked improvement in therapeutic outcomes for *** developing these innovative therapeutic agents targeting specific genetic mutations and immune pathways has provided hope for curative options,FL treatment has become more complex,requiring combinatorial therapeutic ***,optimal treatment combinations have not yet been achieved,highlighting the importance of a complete understanding regarding the pathogenesis of gastrointestinal ***,this article reviews key research on the molecular pathogenesis of nodal FL and novel therapies targeting the causative genetic ***,the results of clinical trials are summarized,with a particular focus on treating nodal and gastrointestinal FLs.

关键词： Gastrointestinal follicular lymphoma Genetic mutation analysis using nextgeneration sequencing MicroRNA Gene targeted therapy Immune therapy

Recent advances in treatment of nodal and gastrointestinal follicular lymphoma

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World Journal of Gastroenterology 2023年第23期29卷 3574-3594页

作者： Takuya watanabe Department of Internal Medicine and Gastroenterology Watanabe Internal Medicine Aoyama ClinicNiigata-city 9502002Japan

Follicular lymphoma(FL)is the most common low-grade lymphoma,and although nodal FL is highly responsive to treatment,the majority of patients relapse repeatedly,and the disease has been incurable with a poor ***,primary FL of the gastrointestinal tract has been increasingly detected in Japan,especially due to recent advances in small bowel endoscopy and increased opportunities for endoscopic examinations and endoscopic ***,many cases are detected at an early stage,and the prognosis is good in many *** contrast,in Europe and the United States,gastrointestinal FL has long been considered to be present in 12%-24%of Stage-IV patients,and the number of advanced gastrointestinal cases is expected to *** editorial provides an overview of the recent therapeutic advances in nodal FL,including antibody-targeted therapy,bispecific antibody therapy,epigenetic modulation,and chimeric antigen receptor T-cell therapy,and reviews the latest therapeutic manuscripts published in the past *** on an understanding of the therapeutic advances in nodal FL,we also discuss future possibilities for gastroenterologists to treat gastrointestinal FL,especially in advanced cases.

关键词： Nodal and gastrointestinal follicular lymphoma Antibody-based therapy Bispecific antibody therapy Phosphatidylinositol-3 kinase inhibitor Epigenetic modulator Chimeric antigen receptor-T cell therapy