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Contributions of the Secondary Jet to the Tangential Velocity Distribution and to the Collection Efficiency of the Fixed Guide Vane Type Axial Flow Cyclone Dust Collector

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Journal of Thermal Science 2015年第6期24卷 503-509页

作者： Akira Ogawa Hideki Anzou So yamamoto Mituru Shimagaki Tokyo Japan

In order to control the maximum tangential velocity V?m(m/s)of the turbulent rotational air flow and the collection efficiencyηc(%)using the fly ash of the mean diameter X R50=5.57?m,two secondary jet nozzles were installed to the body of the axial flow cyclone dust collector with the body diameter D1=*** in order to estimate V?m(m/s),the conservation theory of the angular momentum flux with Ogawa combined vortex model was *** comparisons of the estimated results of V?m(m/s)with the measured results by the cylindrical Pitot-tube were shown in good *** also the estimated collection efficienciesηcth(%)basing upon the cut-size Xc(?m)which was calculated by using the estimated V?m(m/s)and also the particle size distribution R(Xp)were shown a little higher values than the experimental results due to the re-entrainment of the collected *** best method for adjustment ofηc(%)related to the contribution of the secondary jet flow is principally to apply the centrifugal effect?c(1).Above stated results are described in detail.

关键词： Axial Flow Cyclone Dust Collector Maximum Tangential Velocity Cut-Size Particle Size Distribution Collection Efficiency Reynolds number Centrifugal Effect

Innovative therapeutics for inflammatory bowel disease

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World Journal of Gastroenterology 2007年第13期13卷 1893-1896页

作者： Jesus K yamamoto-Furusho Inflammatory Bowel Diseas Clinic Department of Gastroenterology Instituto Nacional d Ciencias Médicas y Nutrición. Vasco de Quiroga 15 Coloni Sección XVI Tlalpan México CP 14000 DF México

Inflammatory bowel diseases (IBD) are chronic inflammatory conditions of the gastrointestinal tract, which clinically present as one of two disorders, Crohn's disease or ulcerative colitis. Mainstays of drug treatments for IBD include aminosalicylates, corticosteroids and immunosuppressants such as azathioprine, methotrexate and cyclosporin. Advances in basic research of the pathophysiological process in IBD have been applied to generate a variety of new therapeutics targeting at different levels of the inflammatory processes. New therapies are classified as: (1) Anti-TNFα antibodies; (2) Recombinant cytokines; (3) Selective adhesion blockade; (4) Growth factors; (5) Innate immunostimulation; (6) Nucleic acid based therapies; (7) Gene therapy; (8) Autologous bone-marrow transplantation; (9) Helminths and (10) Extracorporeal immunomodulation. All treatments have the potential to provide more effective and safe treatment for IBD.

关键词： Novel agents Inflammatory bowel diseases Biologic therapy Future agents

Commonalities and differences between Brassica and Arabidopsis self-incompatibility

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Horticulture Research 2014年第1期1卷 40-44页

作者： Masaya yamamoto Takeshi Nishio Graduate School of Agricultural Science Tohoku UniversitySendai 981-8555Japan

In higher plants,the self-incompatibility mechanism is important for inhibition of self-fertilization and facilitation of *** Brassicaceae,the self-incompatibility response is mediated by allele-specific interaction of the stigma-localized S-locus receptor kinase(SRK)with the pollen coat-localized ligand(SCR/SP11).All self-incompatible Brassicaceae plants analyzed have been found to have the SRK and SCR/SP11 genes in the S-locus *** Arabidopsis thaliana is self-compatible,transformation with functional SRK-SCR genes from self-incompatible Arabidopsis species confers the self-incompatibility phenotype to *** allele-specific interaction between SRK and SCR activates the downstream signaling cascade of *** two-hybrid analysis with a kinase domain of SRK as bait and genetic analysis suggested several candidate components of self-incompatibility signaling in ***,*** genes orthologous to the identified genes for Brassica self-incompatibility signaling were evaluated by using a self-incompatible transgenic *** plant and these orthologous genes were found not to be involved in self-incompatibility signaling in the transgenic *** this review,we describe common and different aspects of S-locus genomic regions and self-incompatibility signaling between Brassica and Arabidopsis.

关键词： Arabidopsis interaction analysis

Improvement of prognosis for unresectable biliary tract cancer

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World Journal of Gastroenterology 2013年第1期19卷 72-77页

作者： Takashi Sasaki Hiroyuki Isayama Yousuke Nakai Naminatsu Takahara naoki Sasahira Hirofumi Kogure Suguru Mizuno Hiroshi Yagioka Yukiko Ito Natsuyo yamamoto Kenji Hirano Nobuo Toda Minoru Tada Masao Omata Kazuhiko Koike Department of Gastroenterology Graduate School of MedicineThe University of TokyoTokyo 113-8655Japan Department of Gastroenterology Kanto Central HospitalTokyo 158-8531Japan Department of Gastroenterology JR Tokyo General HospitalTokyo 151-8528Japan Department of Gastroenterology Japanese Red Cross Medical CenterTokyo 150-8935Japan Department of Gastroenterology Mitsui Memorial HospitalTokyo 101-8643Japan Yamanashi Prefectural Hospital Organization Yamanashi 400-8506Japan

AIM:To evaluate the chemotherapeutic outcomes and confirm the recent improvement of prognosis for unresectable biliary tract ***:A total of 186 consecutive patients with unresectable biliary tract cancer,who had been treated with chemotherapy between 2000 and 2009 at five institutions in Japan,were retrospectively *** patients were divided into three groups based on the year beginning chemotherapy:Group A(2000-2003),Group B(2004-2006),and Group C(2007-2009).The data were fixed at the end of December *** survival and time-to-progression were analyzed and compared ***:No patient characteristics were significantly different among the three *** gallbladder was involved in about half of the patients in each group,and metastatic biliary tract cancer was present in three quarters of the *** Group A,5-fluorouracilbased chemotherapies were primarily selected as firstline chemotherapy,and only 24% were treated with second-line *** Group B,gemcitabine or S-1 monotherapy was mainly introduced as firstline chemotherapy,and 51% of the patients who were refractory to first-line chemotherapy were treated with second-line chemotherapy mainly with *** Group C,the combination therapy with gemcitabine and S-1 was mainly chosen as first-line chemotherapy,and 53% of the patients refractory to first-line chemotherapy were treated with second-line chemotherapy mainly with combination *** median timeto-progressions were 4.4 mo,3.5 mo and 5.9 mo in Groups A,B and C,respectively(4.4 mo vs 3.5 mo vs 5.9 mo,P < 0.01).The median overall survivals were 7.1,7.3,and 11.7 mo in Groups A,B and C(7.1 mo vs 7.3 mo vs 11.7 mo,P = 0.03).Induction rates of all three drugs(gemcitabine,platinum analogs,and fluoropyrimidine) in Groups A,B and C were 4%,2% and 27%(4% vs 2% vs 27%,P < 0.01).CONCLUSION:The prognosis of unresectable biliary tract cancer has improved *** three effective drugs(gemcitabine,p

关键词： Unresectable Biliary tract cancer Gemcitabine Platinum analogs Fluoropyrimidine

Fine Control of Metal Assembly in Dendrimers

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复旦学报（自然科学版） 2007年第5期46卷 737-738页

作者： Kimihisa yamamoto Department of Chemistry Keio University

1 Results Dendrimers are highly branched organic macromolecules with successive layers or "generations" of branch units surrounding a central *** inorganic hybrid versions have also been produced,by trapping metal ions or metal clusters within the voids of the *** unusual,tree-like topology endows these nanometre-sized macromolecules with a gradient in branch density from the interior to the exterior,which can be exploited to direct the transfer of charge and energy from the dendri...

关键词： dendrimer metal assembly nano-materials metal clusters

A comparative study on p-doping behavior of polythiophenes with CH_3SO_3H

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Science China Chemistry 2007年第1期50卷 18-22页

作者： IMIT Mokhtar yamamoto Takakazu IMIN Patigul School of Chemistry and Chemical Engineering Xinjiang University Chemical Resources Laboratory Tokyo Institute of Technology4259 NagatsutaMidori-kuYokohama 226-8503Japan

Four kinds of polythiophenes have been doped with CH3SO3H in CHCl3 under air,oxygen,and nitrogen. In the doping of two types of poly(3-hexylthiophene)s,P3HexTh(Zn/Ni)and P3HexTh(Fe)with different contents of a head-to-tail unit,the p-doping occurs at a similar *** reaction between poly(3-dodecylthiophene),P3DodTh,and the acid takes place more rapidly.P3OBuTh with a butoxy substituent undergoes more facile p-doping and receives photochemical reaction with CHCl3,and this reaction obeys a pseudo-first-order rate law with a rate constant kobs of 1.42×10-5s-1at room tempera- ture.

关键词： polythiophenes p-doping methanesulfonic acid

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MU雷达观测到的台风

气象科技 1992年第4期20卷 36-43,F003页

作者： Toru Sato naoki Ao Mamoru yamamoto 封娟兰

8719号台风途经日本期间,用MU(中、高层大气)雷达对对流层和平流层低层进行了60小时的连续观测.以150m的高度分辨率每隔2.5分钟测量风速矢量的高度廓线.1987年10月17日,8719号台风袭击了日本,并在距MU雷达100km的范围内通过.18km以下都... 详细信息

8719号台风途经日本期间,用MU(中、高层大气)雷达对对流层和平流层低层进行了60小时的连续观测.以150m的高度分辨率每隔2.5分钟测量风速矢量的高度廓线.1987年10月17日,8719号台风袭击了日本,并在距MU雷达100km的范围内通过.18km以下都能观测到清晰的台风旋转结构,往上直到24km,风有短时的振动,表明受台风的强烈影响.整个观测期间,都发现有垂直波长为2-4km,周期为10小时的主波.高空风分析图显示,这些波从一个逆温层附近向上和向下传播,这意味着波动是在逆温层上生成的.

关键词：台风 MU雷达观测对流层平流层

Remission of bronchial asthma after viral clearance in chronic hepatitis C

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World Journal of Gastroenterology 2005年第47期11卷 7545-7546页

作者： Norihiko yamamoto Kazumoto Murata Takeshi Nakano The First Department of Internal Medicine Mie University School of MedicineTsuMieJapan

A 53-year-old man with a history of blood transfusion at the age of 20 was admitted to our hospital because of liver dysfunction. He had bronchial asthma when he was 18 years old, which naturally resolved within 2 years. However, his bronchial asthma recurred at the age of 45 and was treated with oral theophylline. He was diagnosed as having chronic hepatitis C based on the histological and clinical findings, and then interferon (IFN) therapy was administered. The frequency of bronchial asthma attack was gradually decreasing after IFN therapy with marked improvement of hypereosinophilia. He achieved sustained viral response (SVR) and his bronchial asthma did not worsen even after the cessation of IFN. Hepatitis C virus (HCV) infection and IFN therapy were considered in the remission of asthma in this case. HCV infection could be the cause of bronchial asthma, especially in patients with late appearance of asthma.

关键词： Bronchial asthma Chronic hepatitis C IFN therapy

Radiotherapy for multiple brain metastases from hepatocellular carcinomas

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World Journal of Gastroenterology 2007年第33期13卷 4520-4522页

作者： Nobuyuki Toshikuni Kazuhiko Morii Michinori yamamoto Department of Internal Medicine Center for Liver Diseases Kawasaki Hospital Kawasaki Medical SchoolOkayama Japan Department of Internal Medicine Himeji RedCross Hospital Himeji Japan Department of Internal Medicine Himeji Red Cross Hospital Himeji Japan Department of Radiology Himeji Red Cross Hospital Himeji Japan

A 78-year-old man with liver cirrhosis was found to have multiple hepatocellular carcinomas （HCCs） and underwent 3 sessions of transcatheter arterial chernoernbolization. Fourteen months after diagnosis, the patient presented with left herniparesis. Contrast- enhanced magnetic resonance imaging showed multiple metastases with ring-shaped enhancement in the cerebrum and cerebellum. There were no metastases to other organs. The metastatic lesions almost completely disappeared after whole-brain radiotherapy with a total dose of 50 Gy. Neurologic symptoms decreased, and the patient＇s quality of life improved. The patient underwent 2 more sessions of transcatheter arterial chemoembolization. Twelve months after the diagnosis of brain metastasis, the patient remains alive. The present case indicates that radiotherapy can improve quality of life and prolong survival in some patients with brain metastases from HCCs.

关键词： Hepatocellular carcinoma Brain metastasis Radiotherapy