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无中微子双β衰变相关的中微子势（英文）

原子核物理评论 2017年第1期34卷 82-86页

作者： Yoritaka iwata 东京工业大学技术创成研究院芝浦工业大学数学系

介绍了在双β衰变中的闭合近似下的原子核矩阵元,并在此基础上研究了无中微子双β衰变的中微子势部分及统计性质。分析结果显示,费米型和伽莫夫-泰勒型矩阵元部分贡献了几乎相等的正值,并且费米型部分一般比伽莫夫-泰勒型部分的贡献稍大... 详细信息

介绍了在双β衰变中的闭合近似下的原子核矩阵元,并在此基础上研究了无中微子双β衰变的中微子势部分及统计性质。分析结果显示,费米型和伽莫夫-泰勒型矩阵元部分贡献了几乎相等的正值,并且费米型部分一般比伽莫夫-泰勒型部分的贡献稍大,而张量部分的贡献虽小但不可忽略,其中有少量矩阵元为负。阐明了无中微子双β衰变的中微子势中费米型、伽莫夫-泰勒型及张量部分大于零矩阵元的关联。该统计结果粗略地揭示了这些组份对原子核矩阵元的贡献。

关键词：无中微子双β衰变中微子势核矩阵元

A Straight-bladed Vertical Axis Wind Turbine with a Directed Guide Vane Row-Effect of Guide Vane Geometry on the Performance-

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Journal of Thermal Science 2009年第1期18卷 54-57页

作者： Manabu TAKAO Hideki KUMA Takao MAEDA Yasunari KAMADA Michiaki OKI atsushi MINODA Department of Mechanical Engineering Matsue National College of Technology Department of Mechanical Engineering Mie University

The objective of this study is to show the effect of guide vane geometry on the performance. In order to overcome the disadvantages of vertical axis wind turbine, a straight-bladed vertical axis wind turbine （S-VAWT） with a directed guide vane row has been proposed and tested by the authors. According to previous studies, it was clarified that the performance of the turbine can be improved by means of the directed guide vane row. However, the guide vane geometry of S-VAWT has not been optimized so far. In order to clarify the effect of guide vanegeometry, the effects of setting angle and gap between rotor blade and guide vane on power coefticlent and start- ing characteristic were investigated in the experiments. The experimental study of the proposed wind turbine was carried out by a wind tunnel. The wind tunnel with a diameter of 1.8m is open jet type. The wind velocity is 8 m/s in the experiments. The rotor has three straight blades with a profile of NACA0018 and a chord length of 100 mm, a diameter of 0.6 m and a blade height of 0.7 m. The guide vane row consists of 3 arc plates.

关键词： fluid machinery wind energy vertical axis wind turbine guide vane

Fabrication and characterization of TiO2-based dye-sensitized solar cells

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Progress in Natural Science:Materials International 2011年第2期21卷 122-126页

作者： Takeo OKU Nariaki KAKUTA Kengo KOBAYASHI atsushi SUZUKI Kenji KIKUCHI Department of Materials Science The University of Shiga PrefectureShiga 522-8533Japan

Dye-sensitized solar cells TiO2with were *** phase composition and microstructures of the solar cells were examined by X-ray diffractometry and transmission electron microscopy,and the energy levels of the present solar cells were also *** results show that a solar cell mixed with xylenol orange and rose Bengal shows a higher conversion efficiency compared to solar cells with a single *** introduction of amorphous TiO2layers results in an improvement of the conversion efficiency.

关键词： solar cell TiO2 dye porphyrin microstructure

Extraction studies of cobalt (Ⅱ) and nickel (Ⅱ) from chloride solution using PC88A

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中国有色金属学会会刊：英文版 2006年第3期16卷 687-692页

作者：罗琳魏建宏吴根义 F. TOYOHISA S. atsushi College of Resources and Environment Hunan Agricultural University Changsha 410128 China Graduate School of Engineering University of Tokyo Tokyo 113-8656 Japan Satellite Venture Business Laboratory Faculty of Engineering and Resource Science Akita University Akita 010-8 502 Japan

Solvent extraction study of cobalt and nickel were carried out from a chloride solution with a high ratio of Co to Ni using the sodium salt of PC88A as extractant diluted in kerosene. The solution was generated in batches by leaching a tungsten super alloy scraps. The results show that extraction rate of metal ions increases with increase of aqueous phase pH value. The pH0.5 value difference of 1.40 with PC88A indicates the possible separation of cobalt and nickel. Increase of the concentration of the solvent can enhance the percentage extraction of both metal ions. Improvement of temperature is beneficial to extraction separation of cobalt and nickel. Extraction and stripping processes were also studied in a cross-current solvent extraction unit and the results were also given.

关键词： PC-88A 钴镍溶剂萃取萃取剂

Female ticks (Ixodes scapularis) infected with Borrelia burgdorferi have increased overwintering survival, with implications for tick population growth

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Insect Science 2023年第6期30卷 1798-1809页

作者： Amal El Nabbout Laura V.Ferguson atsushi Miyashita Shelley A.Adamo Department of Biology Dalhousie UniversityHalifaxNova ScotiaCanada Department of Biology Acadia UniversityWolfvilleNova ScotiaCanada Institute of Medical Mycology Teikyo UniversityTokyoJapan Department of Psychology and Neuroscience Dalhousie UniversityNova ScotiaCanada

The tick, Ixodes scapularis, vectors pathogens such as Borrelia burgdorferi, the bacterium that causes Lyme disease. Over the last few decades I. scapularis has expanded its range, introducing a novel health threat into these areas. Warming temperatures appear to be one cause of its range expansion to the north. However, other factors are also involved. We show that unfed adult female ticks infected with B. burgdorferi have greater overwintering survival than uninfected female ticks. Locally collected adult female ticks were placed in individual microcosms and allowed to overwinter in both forest and dune grass environments. In the spring we collected the ticks and tested both dead and living ticks for B. burgdorferi DNA. Infected ticks had greater overwintering survival compared with uninfected ticks every winter for three consecutive winters in both forest and dune grass environments. We discuss the most plausible explanations for this result. The increased winter survival of adult female ticks could enhance tick population growth. Our results suggest that, in addition to climate change, B. burgdorferi infection itself may be promoting the northern range expansion of I. scapularis. Our study highlights how pathogens could work synergistically with climate change to promote host range expansion.

关键词： cold tolerance ecological immunology Lyme disease thermobiology winter

Changes in ecosystem service values strongly influenced by human activities in contrasting agro-ecological environments

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Ecological Processes 2021年第1期10卷 691-708页

作者： Mulatu Liyew Berihun atsushi Tsunekawa Nigussie Haregeweyn Mitsuru Tsubo Ayele Almaw Fenta Faculty of Civil and Water Resources Engineering Bahir Dar Institute of TechnologyBahir Dar UniversityP.O.Box 26Bahir DarEthiopia. Arid Land Research Center Tottori University1390 HamasakaTottori 680-0001Japan. International Platform for Dryland Research and Education Tottori University1390 HamasakaTottori 680-0001Japan.

Background:Evaluating the impacts of land-use/land-cover(LULC)changes on ecosystem service values(ESVs)is essential for sustainable use and management of *** this study,we evaluated the impact of human activity driven LULC changes on ESVs over the period 1982–2016/17 in contrasting agro-ecological environments:Guder(highland),Aba Gerima(midland),and Debatie(lowland)watersheds of the Upper Blue Nile basin,***:During the study period,the continuous expansion of cultivated land at the expense of natural vegetation(bushland,forest,and grazing land)severely reduced the total ESV by about US$58 thousand(35%)in Aba Gerima and US$31 thousand(29%)in Debatie *** contrast,the unprecedented expansion of plantations,mainly through the planting of Acacia decurrens,led,from 2006,to a ESV rebound by about US$71 thousand(54%)in Guder watershed,after it had decreased by about US$61 thousand(32%)between 1982 and *** reduction in natural forest area was the major contributor to the loss of total ESV in the study watersheds,ranging from US$31 thousand(63%)in Debatie to US$96.9 thousand(70%)in Guder between 1982 and 2016/*** an areaspecific basis,LULC changes reduced the average ESV from US$560 ha^(−1) year^(−1)(1982)in Guder to US$306 ha^(−1) year^(−1)(2017)in Debatie *** ESVs such as provisioning(mainly as food production)and regulating services(mainly as erosion control and climate regulation)accounted for most of the total ESVs estimated for the study ***:In most cases,the total and specific ESVs of the watersheds were negatively associated with the population growth,which in turn was positively associated with the expansion of cultivated land over the study *** Guder,however,ESVs were positively associated with population growth,especially after *** is mainly due to the expansion of Acacia decurrens *** results suggest,therefore,that future policy measures and directions should focus o

关键词： Drought prone Agro-ecologies Land use/land cover Acacia decurrens Plantations Ecosystem services Farming practices Upper Blue Nile basin

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彰显个性的设计

现代装饰 2024年第2期 84-93页

作者： atsushi Shindo The Long Confidence Rafi Ajl Lorenz Noelle Sarah Hossli Curve Lab Fredrik Paulse Vaarnii FEDERICO PERI BROKIS GERVASONI Tooy Marset Jaume Ramirez Dennismaass 舒禹(编译) 不详

这是一个很有趣的设计,一个垂直的圆柱体位立于几何形状的中心。除了现有摆置功能之外,设计师总设想物体还能有什么其他用途。至于容器中间的这个圆柱体的作用?设计师不知道答案,但又不想删除它。

关键词：彰显个性几何形状圆柱体设计师有趣

Influence analysis of complex crack geometric parameters on mechanical properties of soft rock

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International Journal of Coal Science & Technology 2023年第4期10卷 290-304页

作者： Yang Zhao Xin He Lishuai Jiang Zongke Wang Jianguo Ning atsushi Sainoki State Key Laboratory of Mining Disaster Prevention and Control Shandong University of Science and TechnologyQingdao 266590China College of Energy and Mining Engineering Shandong University of Science and TechnologyQingdao 266590China Faculty of Advanced Science and Technology Kumamoto UniversityKumamoto 860‑8555Japan

Soft rocks, such as coal, are afected by sedimentary efects, and the surrounding rock mass of underground coal mines is generally soft and rich in joints and cracks. A clear and deep understanding of the relationship between crack geometric parameters and rock mechanics properties in cracked rock is greatly important to the design of engineering rock mass struc‑tures. In this study, computed tomography (CT) scanning was used to extract the internal crack network of coal specimens. Based on the crack size and dominant crack number, the parameters of crack area, volume, length, width, and angle were statistically analyzed by diferent sampling thresholds. In addition, the Pearson correlation coefcients between the crack parameters and uniaxial compression rock mechanics properties (uniaxial compressive strength UCS, elasticity modulus E) were calculated to quantitatively analyze the impact of each parameter. Furthermore, a method based on Pearson coefcients was used to grade the correlation between crack geometric parameters and rock mechanical properties to determine threshold values. The results indicated that the UCS and E of the specimens changed with the varied internal crack structures of the specimens, the crack parameters of area, volume, length and width all showed negative correlations with UCS and E, and the dominant crack played an important role both in weakening strength and stifness. The crack parameters of the angle are all positively correlated with the UCS and E. More crack statistics can signifcantly improve the correlation between the parameters of the crack angle and the rock mechanics properties, and the statistics of the geometric parameters of at least 16 cracks or the area larger than 5 mm2 are suggested for the analysis of complex cracked rock masses or physical reproduction using 3D printing. The results are validated and further analyzed with triaxial tests. The fndings of this study have important reference value for future research regardi

关键词： CT scanning Complex crack Sampling threshold Soft rock Rock mechanics Crack geometric parameters

S100A7 Co-localization and Up-regulation of Filaggrin in Human Sinonasal Epithelial Cells

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Current Medical Science 2021年第5期41卷 863-868页

作者： Masahiro Nakamura Kazusaku Kamiya atsushi Furuhata Katsuhisa Ikeda Frangois Niyonsaba Department of Otorhinolaryngology Juntendo University School of MedicineTokyo 113-8421Japan Atopy(Allergy)Research Center Junlendo University School of MedicineTokyol 13-8421Japan Biomedical Research Center Graduate School of MedicineJuntendo UniversityTokyo 113-8421Japan Faculty of International Liberal Arts Laboratory of Morphology and Image AnalysisGraduate School of MedicineJuntendo UniversityTokyo 113-8421Japan

Objective:Filaggrin(FLG)is a protein expressed in the epidermis and involved in the maintenance of the epidermal ***,the expression and localization of FLG in the upper airway remain *** present study aimed to determine the significance of FLG and the effect of S100A7 on FLG expression in the upper respiratory ***:Human nasal epithelial cells(HNECs)were cultured and examined for FLG expression and S100A7 effects by real-time polymerase chain reaction and Western *** localization and distribution of FLG were assessed using sinonasal ***:A significant expression of FLG was detected at the mRNA and protein levels in HNECs.A moderate FLG immunoreactivity was observed in the epithelial cells,but no staining was seen in epithelial goblet cells.S100A7 increased the FLG mRNA level in HNECs in a dose-dependent manner and also up-regulated the FLG protein in a dose-dependent ***:This study significantly contributes to a better understanding of the role of FLG in the pathogenesis of airway inflammation from the viewpoint of the epithelial barrier ***-related events in response to S100A7 protein may represent novel therapeutic targets for the treatment of upper airway inflammation.

关键词： nasal epithelial cell filaggrin S100A7 keratinocyte