检索结果-南通市图书馆

Science China(Technological Sciences) 2019年第11期62卷 2009-2013页

作者： PAN ChunJiao GAO TengHua ITOGAWA Nobuhide HARUMOTO Takashi ZHANG ZhengJun NAKAMURA yoshio SHI Ji School of Materials Science and Engineering Tsinghua UniversityBeijing 100084China School of Materials and Chemical Technology Tokyo Institute of TechnologyTokyo 152-8552Japan Department of Applied Physics and Physico-Informatics Keio UniversityYokohama 223-8522Japan

Perpendicular magnetic anisotropy and perpendicular exchange bias of CoPt/FeMn bilayers fabricated by dc magnetron sputtering were investigated in this *** anisotropy,showing strong dependence on thickness of CoPt layer,changes from perpendicular magnetic anisotropy(PMA) into in-plane magnetic anisotropy when CoPt layer is thicker than 4.5 *** evolution of internal stress with thickness,from tensile to compressive,has been analyzed by sin^2 ψ method using an equal biaxial stress *** perpendicular exchange bias(PEB) has been successfully established due to PMA of CoPt and out-ofplane spin component of 3 Q-spin-structured *** thickness dependence of exchange bias field has been systematically investigated.

关键词： perpendicular magnetic anisotropy perpendicular exchange bias X-ray technique magnetic materials

Impacts of converting from leaded to unleaded gasoline on ambient lead concentrations in Jakarta metropolitan area

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2007年第6期19卷 709-713页

作者： Akira KONDO Esrom HAMONANGAN Satoshi SODA Akikazu KAGA yoshio INOUE Masaharu EGUCHI Yuta YASAKA Graduate School of Engineering Osaka UniversityYamada-oka 2-1Suita Osaka 565-0871Japan Environmental Management Center Komplek PUSPIPTEKJI.RayaPuspiptekSerpong Bantan 15314Indonesia Research Center for Environmental Preservation Osaka University Yamada-oka 2-1SuitaOsaka 565-0871Japan

Total suspended particulate mater （TSP） concentrations were monitored for one year from July 2000 and for one year from April 2003 in Jakarta City. Thirteen elemental TSP components, aluminum （Al）, sodium （Na）, iron （Fe）, lead （Pb）, potassium （K）, zinc （Zn）, titanium （Ti）, manganese （Mn）, bromine （Br）, copper （Cu）, chromium （Cr）, nickel （Ni）, and vanadium （V） were analyzed by a sequential X-ray fluorescence spectrometer. Al, Na, Fe, K, and Pb were major components at most of the sampling locations in 2000. However, only Pb in 2003 dramatically decreased to one tenth. The phase-out of leaded gasoline began on July 1, 2001 in Jakarta City and lead content in gasoline decreased to one tenth, too. The decrease in Pb concentration was a result of the phase-out of leaded gasoline, as lead emissions mainly are exhaust gas from vehicles.

关键词： TSP concentration lead concentration unleaded gasoline

Three-dimensional Simulation and Pattern Making of Collar Using Geometric Model

在线全文

学校读者我要写书评

暂无评论

Journal of Donghua University(English Edition) 2001年第3期18卷 53-57页

作者：张明杰侯东昱周爱英 yoshio Shimizu Faculty of Textile Science and Technology Shinshu University Ueda Nagano 386-8567 Japan Department of Apparel Hebei Science and Technology University 050016 College of Fashion Dong Hua University Shanghai 200051

An algorithm is presented for computationally simulating collars and drafting patterns. The collar shape was modeled by three-dimensional Bezier patch. Changing the position of consol points of the patch can interactively control the collar shape. Using triangular surface developing method, patterns of various styles of stand collar and separating collar were drafted. As the subsystem of 3D apparel design system, an interactive collar design system is constructed. To inspect the practical usage, we reproduced the collars using these patterns drafted by the interactive collar design *** with simulated collars, the system demonstrated well and we found it is more reliable and accurate than the method of handwork.

关键词： collar, pattern making, clothing model, 3D apparel design.

Efficacy of transvaginal ultrasound-guided local injections of absolute ethanol for ectopic pregnancies with intrauterine implantation sites

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2023年第4期11卷 788-796页

作者： Toshiyuki Kakinuma Kaoru Kakinuma yoshio Matsuda Kaoru Yanagida Michitaka Ohwada HirotsuneKaijima Department of Obstetrics and Gynecology International University of Health and Welfare HospitalNasushiobara 329-2763Japan Minatomirai Yume Clinic Yokohama 2200012Japan

BACKGROUND Cervical pregnancies,interstitial tubal pregnancies,and cesarean scar pregnancies,which are ectopic pregnancies with intrauterine implantation sites exhibit increasing trends with the recent widespread use of assisted reproductive technologies and increased rate of cesarean *** development of highsensitivity human chorionic gonadotropin testing reagents and the increased precision of transvaginal ultrasonic tomography have made early diagnosis possible and have enabled *** of ectopic pregnancies using methotrexate therapy and/or uterine artery embolization has been ***,delayed resumption of infertility treatments after methotrexate therapy is indicated,and negative effects on the next pregnancy after uterine artery embolization have been *** To examine the efficacy and safety of ultrasound-guided topical absolute ethanol injection in ectopic pregnancies with an intrauterine implantation *** In this study,we retrospectively examined the medical records of 21 patients who were diagnosed with an ectopic pregnancy with an intrauterine implantation site at our hospital,between April 2010 and December 2018,and underwent transvaginal ultrasound-guided local injections of absolute ethanol to determine the treatment *** evaluated the treatment methods,treatment outcomes,presence of bleeding requiring hemostasis measures and blood transfusion,complications,and treatment *** treatment was defined as the completion of treatment using transvaginal ultrasound-guided local injections of absolute ethanol *** There were 21 total cases comprising 10 cervical pregnancies,10 interstitial tubal pregnancies,and 1 cesarean scar *** patients completed treatment with this *** massive hemorrhaging or serious adverse reactions were observed during *** mean gestation ages at the time of diagnosis were 5.9 wk(SD,±0.9 wk)for cervical and 6.9 wk(SD,±2.1 wk)for interstitial

关键词： Embryo transfer Fertility Fertilization in vitro Pregnancy complications Prenatal care Ectopic pregnancy

Contemplative neuroaesthetics and architecture:A sensorimotor exploration

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Architectural Research 2024年第1期13卷 97-111页

作者： Zakaria Djebbara Juliet King Amir Ebadi yoshio Nakamura Julio Bermudez Department of Architecture DesignMediaand TechnologyAalborg UniversityAalborgDenmark Biopsychology und Neuroergonomy Technical University BerlinBerlinGermany Art Therapy Department The George Washington UniversityWashington DCUnited States Department of Neurology Indiana University School of MedicineIndianapolisUnited States Dellustration Washington DCUnited States Pain Research Center Division of Pain MedicineDepartment of AnesthesiologyUniversity of Utah School of MedicineUtahUnited States School of Architecture and Planning The Catholic University of AmericaWashington DCUnited States

This paper takes initial steps towards developing a theoretical framework of contemplative neuroaesthetics through sensorimotor *** first argue that this new area has been largely omitted from the contemporary research agenda in neuroaesthetics and thus remains a domain of untapped *** seek to define this domain to foster a clear and focused investigation of the capacity of the arts and architecture to induce phenomenological states of a contemplative *** proposing a sensorimotor account of the experience of architecture,we operationalize how being attuned to architecture can lead to contemplative *** contrasting the externally-induced methods with internally-induced methods for eliciting a contemplative state of mind,we argue that architecture may spontaneously and effortlessly lead to such states as certain built features naturally resonate with our sensorimotor *** suggest that becoming sensible of the resonance and attunement process between internal and external states is what creates an occasion for an externallyinduced contemplative ***,we review neuroscientific studies of architecture,elaborate on the brain regions involved in such aesthetic contemplative responses,provide architectural examples,and point at the contributions that this new area of inquiry may have in fields such as the evidence-based design movement in architecture.

关键词： Neuropheno menology Neuroaesthetics Contemplative states Architectural experience Well-being

Roles of Helicobacter pylori BabA in gastroduodenal pathogenesis

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2008年第27期14卷 4265-4272页

作者： yoshio Yamaoka Department of Medicine-Gastroenterology Michael E. DeBakey Veterans Affairs Medical Center and Baylor College of Medicine

Interactions between BabA and Lewis b (Leb) related antigens are the best characterized adhesin-receptor interactions in Helicobacter pylori (H pylori). Several mechanisms for the regulation of BabA expression are predicted, including at both transcriptional and translational levels. The formation of chimeric proteins (babA /B or babB /A chimeras) seems to play an especially important role in translational regulation. Chimeric BabB/A protein had the potential to bind Leb; however, protein production was subject to phase variation through slipped strand mispairing. The babA gene was cloned initially from strain CCUG17875, which contains a silent babA1 gene and an expressed babA2 gene. The sequence of these two genes differs only by the presence of a 10 bp deletion in the signal peptide sequence of babA1 that eliminates its translational initiation codon. However, the babA1 type deletion was found only in strain CCUG17875. A few studies evaluated BabA status by immunoblot and confirmed that BabA-positive status in Western strains was closely associated with severe clinical outcomes. BabA-positive status also was associated with the presence of other virulence factors (e.g. cagA-positive status and vacA s1 genotype). A small class of strains produced low levels of the BabA protein and lacked Leb binding activity. These were more likely to be associated with increased mucosal inflammation and severe clinical outcomes than BabA-positive strains that exhibited Leb binding activity. The underlying mechanism is unclear, and further studies will be necessary to investigate how the complex BabA-receptor network is functionally coordinated during the interaction of H pylori with the gastric mucosa.

关键词： Helicobacter pylori BabA Pathogenesis Lewis antigens

Recent Progress on Fabrications and Applications of Boron Nitride Nanomaterials:A Review

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2015年第6期31卷 589-598页

作者： Xiang-Fen Jiang Qunhong Weng Xue-Bin Wang Xia Li Jun Zhang Dmitri Golberg yoshio Bando World Premier International Center for Materials Nanoarchitectonics(WPI-MANA) National Institute for Materials Science(NIMS)Namiki 1-1TsukubaIbaraki 3050044Japan International Center for Young Scientists(ICYS) NIMSNamiki 1-1TsukubaIbaraki 3050044Japan College of Engineering and Applied Sciences Nanjing University School of Materials Science and Engineering Hebei University of Technology

Boron nitride(BN) nanostructures with complementary functions to their carbon counterparts are one of the most intriguing *** we devote a compact review on the syntheses of BN nanomaterials:typical zero-dimensional(OD) fullerenes and nanoparticles,one-dimensional(1D) nanotubes and nanoribbons,two-dimensional(2D) nanosheets as well as three-dimensional(3D) nanoporous *** low-dimensional quantum confinement and surface effects with unique physical and chemical properties of BN,*** electric insulation,wide band gap,and high chemical and thermal stability,BN nanomaterials have drawn particular attention in a variety of potential applications,***,functional composites,hydrogen accumulators,and advanced insulators,which are also reviewed.

关键词： Boron nitride Nanoparticle Nanotube Nanosheet Poro

Spark plasma sintering of damage tolerant and machinable YAM ceramics

在线全文

学校读者我要写书评

暂无评论

Journal of Advanced Ceramics 2013年第2期2卷 193-200页

作者： Qian WANG Salvatore GRASSO Chunfeng HU Haibin ZHANG Shu CAI yoshio SAKKA Qing HUANG Ningbo Institute of Materials Technology and Engineering(NIMTE) Chinese Academy of Sciences(CAS)Ningbo 315201China Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education Tianjin UniversityTianjin 300072China School of Engineering&Materials Science and Nanoforce Technology Ltd. Queen Mary University of LondonMile End RoadLondon E14NSUK China Academy of Engineering Physics Mianyang 621900China National Institute for Materials Science(NIMS) TsukubaIbaraki 305-0047Japan

Single-phase Y_(4)Al_(2)O_(9)(YAM)powders were synthesized via solid-state reaction starting from nano-sized Al_(2)O_(3) and Y_(2)O_(3).Fully dense(99.5%)bulk YAM ceramics were consolidated by spark plasma sintering(SPS)at 1800℃.We demonstrated the excellent damage tolerance and good machinability of YAM *** properties are attributed to the easy slipping along the weakly bonded crystallographic planes,resulting in multiple energy dissipation mechanisms such as transgranular fracture,shear slipping and localized grain crushing.

关键词： ceramic synthesis microstructure property damage tolerance

Characteristics of nanoparticles emitted from burning of biomass fuels

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2014年第9期26卷 1913-1920页

作者： Mitsuhiko Hata Jiraporn Chomanee Thunyapat Thongyen Linfa Bao Surajit Tekasakul Perapong Tekasakul yoshio Otani Masami Furuuchi College of Science and Engineering Kanazawa UniversityKakuma-machiKanazawaIshikawa 920-1192Japan Department of Chemistry Faculty of SciencePrince of Songkla UniversityHat YaiSongkhla 90112Thailand Graduate School of Natural Science and Technology Kanazawa UniversityKakuma-machiKanazawaIshikawa 920-1192Japan Energy Technology Research Center and Department of Mechanical EngineeringFaculty of EngineeringPrince of Songkla UniversityHat YaiSongkhla 90112Thailand National Center of Excellence for Environmental and Hazardous Waste Management (EHWM) Southern Consortium Universities at Prince ofSongkla UniversityHat YaiSongkhla 90112Thailand

The characteristics of the particles of the smoke that is emitted from the burning ofbiomass fuels were experimentally investigated using a laboratory-scale tube furnace and different types of biomass fuels： rubber wood, whole wood pellets and rice husks. Emitted amounts of particles, particle-bound polycyclic aromatic hydrocarbons （PAHs） and water-soluble organic carbon （WSOC） are discussed relative to the size of the emitted particles, ranging to as small as nano-size （〈70 nm）, and to the rate of heating rate during combustion, differential thermal analysis （DTA） and thermogravimetric analysis （TG） techniques were used to examine the effect of heating rate and biomass type on combustion behaviors relative to the characteristics of particle emissions. In the present study, more than 30% of the smoke particles from the burning ofbiomass fuel had a mass that fell within a range of 〈 100 nm. Particles smaller than 0.43 μm contributed greatly to the total levels of toxic PAHs and WSOC. The properties of these particles were influenced by the fuel component, the combustion conditions, and the particle size. Although TC--DTA results indicated that the heating rate in a range of 10-20℃did not show a significant effect on the combustion properties, there was a slight increase in the decomposition temperature as heating rate was increased. The nano-size particles had the smallest fraction of particle mass and particle-bound PAHs, but nonetheless these particles registered the largest fraction of particle-bound WSOC.

关键词： Wood biomassNano-particlesPolycyclic aromatic hydrocarbonsWater-soluble organic carbon

Nanotubes in a Gradient Electric Field as Revealed by STM TEM Technique

在线全文

学校读者我要写书评

暂无评论

Nano Research 2008年第2期1卷 166-175页

作者： Dmitri Golberg Pedro M.F.J.Costa Masanori Mitome yoshio Bando Nanoscale Materials Center Namiki 1-1TsukubaIbaraki 305-0044Japan International Center for Materials Nanoarchitectonics(MANA) National Institute for Materials ScienceNamiki 1-1TsukubaIbaraki 305-0044Japan Center for Research in Ceramics and Composite Materials University of Aveiro3810-193 AveiroPortugal

We have investigated the behavior of two nanotube systems,carbon and boron nitride,under controlled applied voltages in a high-resolution transmission electron microscope(TEM)equipped with a scanning tunneling microscope(STM)*** nanotubes(or thin bundles)were positioned between a piezo-movable gold electrode and a biased(up to±140 V)STM tip inside the pole-piece of the *** structures studied include double-and multi-walled carbon nanotubes(the latter having diverse morphologies due to the various synthetic procedures utilized),few-layered boron nitride nanotube bundles and multi-walled boron nitride nanotubes(with or without functionalized surfaces).The electrical breakdown,physical failure,and electrostatic interactions are documented for each system.

关键词： Carbon nanotubes boron nitride nanotubes transmission electron microscope scanning tunneling microscope