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铈掺杂钆镓铝石榴石相玻璃陶瓷的光学及光谱参数

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光谱学与光谱分析 2010年第1期30卷 128-132页

作者：龚桦赵昕于晓波 setsuhisa tanabe 林海大连工业大学化工与材料学院辽宁大连116034 大连工业大学信息科学与工程学院辽宁大连116034 日本京都大学大学院人间环境学研究科

根据X射线衍射图谱对铈掺杂的钆镓铝石榴石相玻璃陶瓷的晶体结构进行分析,采用直径10英寸积分球结合CCD(charge coupled device)探测器系统,对蓝色半导体发光二极管激发下铈掺杂钆镓铝石榴石相玻璃陶瓷的荧光光谱进行测试,解析出样品发... 详细信息

根据X射线衍射图谱对铈掺杂的钆镓铝石榴石相玻璃陶瓷的晶体结构进行分析,采用直径10英寸积分球结合CCD(charge coupled device)探测器系统,对蓝色半导体发光二极管激发下铈掺杂钆镓铝石榴石相玻璃陶瓷的荧光光谱进行测试,解析出样品发光的绝对光谱功率分布,推导出光量子数分布,求得荧光量子产率和组合白光的色坐标及其相关色温。结果表明,所调查的铈掺杂钆镓铝石榴石相玻璃陶瓷在蓝光LED激发下的荧光量子产率为29.2%,所获得组合白光的色坐标x=0.319,y=0.349,相关色温为6 086K。尽管该混晶陶瓷的荧光量子产率稍小于铈掺杂YAG玻璃陶瓷,但其与蓝光LED组合后发光的色温也明显低于后者,从而为舒适型LED照明玻璃陶瓷的进一步优化提供了新思路。

关键词：玻璃陶瓷晶相光谱功率分布量子产率相关色温

紫色半导体发光二极管激发下Sm^(3+)掺杂的铋碲酸盐玻璃的光谱能量分布与量子产率计算

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光谱学与光谱分析 2007年第12期27卷 2385-2388页

作者：王雪影林海李长敏杨殿来 setsuhisa tanabe 大连轻工业学院化工与材料学院辽宁大连116034 京都大学人间环境学研究科

采用积分球光谱测试系统,在紫色半导体发光二极管激发下,对Sm3+掺杂的低声子能量、高折射率铋碲酸盐玻璃的荧光光谱进行测试。荧光测试系统由直径为25.4 cm的积分球,配以CCD探测器组成,通过标准卤素灯定标,辅助卤素灯校正积分球内环境变... 详细信息

采用积分球光谱测试系统,在紫色半导体发光二极管激发下,对Sm3+掺杂的低声子能量、高折射率铋碲酸盐玻璃的荧光光谱进行测试。荧光测试系统由直径为25.4 cm的积分球,配以CCD探测器组成,通过标准卤素灯定标,辅助卤素灯校正积分球内环境变化,解析出样品的绝对光谱能量分布,并进一步计算出光通量分布、光量子数分布,求得辐射通量、光通量、荧光量子产率等荧光特征参数。测试与计算结果表明,对应可见区Sm3+四个特征发射峰,总辐射通量为55μW,总荧光量子产率为4.07%;可见区内,样品受激后光通量为0.02 lm。文章首次将积分球法应用于多通道跃迁稀土离子荧光性能的测试,实现了荧光特性准确评价为目的的绝对光谱能量分布测试,为发光与激光材料光学性能的精确测量与表征提供了一种新方法。

关键词： Sm^3+ 铋碲酸盐玻璃光谱能量分布光通量量子产率

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Mn4+激活氧氟化物红光荧光粉的研究进展

无机材料学报 2020年第8期35卷 847-856页

作者：姬海鹏张宗涛 XU Jian tanabe setsuhisa 陈德良解荣军郑州大学材料科学与工程学院郑州450001 Graduate School of Human and Environmental Studies Kyoto UniversityKyoto 606-8501Japan 厦门大学材料学院厦门361000

稳定可靠的高光子能量发光(620~650nm)红光荧光粉,对于构建低色温、高显指荧光粉转换型白光发光二极管(WLED)至关重要。Mn4+激活红光荧光粉是当前WLED用荧光粉研究热点之一。本文介绍了Mn4+离子的能级跃迁与光致发光特性,详细叙述了目... 详细信息

稳定可靠的高光子能量发光(620~650nm)红光荧光粉,对于构建低色温、高显指荧光粉转换型白光发光二极管(WLED)至关重要。Mn4+激活红光荧光粉是当前WLED用荧光粉研究热点之一。本文介绍了Mn4+离子的能级跃迁与光致发光特性,详细叙述了目前所报道的七种Mn4+激活含d0/d10/s0离子氧氟化物系列红色荧光粉(如Na2WO2F4:Mn4+等)的制备方法、晶体结构及其发光特性。目前Mn4+在氧氟化物结构中得到强R线(零声子线)发光的情况少,微观配位体仍是[MnF6]或[MnO6],其化学稳定性和量子效率研究也很缺乏。最后对Mn4+激活氧氟化物红光荧光粉的研究进行了展望。

关键词：白光LED 荧光粉 Mn4+ 氧氟化物综述

稀土钐离子可见荧光量子产率的精确测试与计算

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光学学报 2008年第2期28卷 311-315页

作者：王雪影李长敏于晓波杨殿来林海 setsuhisa tanabe 大连工业大学化工与材料学院辽宁大连116034 日本京都大学大学院日本京都606-8501

采用积分球配以CCD光谱测试系统,在蓝色半导体发光二极管激发下,对Sm3+掺杂的低声子能量、高折射率铋碲酸盐玻璃的荧光光谱进行测试。实现了荧光发射特性绝对评价为目的的绝对光谱功率分布测定,为发光与激光材料荧光发射特性的精确测量... 详细信息

采用积分球配以CCD光谱测试系统,在蓝色半导体发光二极管激发下,对Sm3+掺杂的低声子能量、高折射率铋碲酸盐玻璃的荧光光谱进行测试。实现了荧光发射特性绝对评价为目的的绝对光谱功率分布测定,为发光与激光材料荧光发射特性的精确测量与表征提供了一种准确方法。荧光测试系统由直径为25.4cm的积分球配以CCD探测器组成,通过标准卤素灯定标,辅助卤素灯校正积分球内环境变化,解析出样品的绝对光谱功率分布,并进一步计算出光量子数分布,求得荧光量子产率等荧光特征参量。测试与计算结果表明,对应可见区Sm3+四个特征发射峰,总荧光量子产率为7.55%。

关键词：光学材料量子产率积分球测试 Sm^3+离子光谱功率分布

Origin of cells and network information

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World Journal of Stem Cells 2015年第3期7卷 535-540页

作者： Shihori tanabe National Institute of Health Sciences

All cells are derived from one cell, and the origin of different cell types is a subject of curiosity. Cells construct life through appropriately timed networks at each stage of development. Communication among cells and intracellular signaling are essential for cell differentiation and for life processes. Cellular molecular networks establish cell diversity and life. The investigation of the regulation of each gene in the genome within the cellular network is therefore of interest. Stem cells produce various cells that are suitable for specific purposes. The dynamics of the information in the cellular network changes as the status of cells is altered. The components of each cell are subject to investigation.

关键词： Stem cell Genome Network information Bioinformatics Gene Epithelial-mesenchymal transition

Signaling involved in stem cell reprogramming and differentiation

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World Journal of Stem Cells 2015年第7期7卷 992-998页

作者： Shihori tanabe National Institute of Health Sciences

Stem cell differentiation is regulated by multiple signaling events. Recent technical advances have reve-aled that differentiated cells can be reprogrammed into stem cells. The signals involved in stem cell pro-gramming are of major interest in stem cell research. The signaling mechanisms involved in regulating stem cell reprogramming and differentiation are the subject of intense study in the field of life sciences. In this review,the molecular interactions and signaling pathways related to stem cell differentiation are discussed.

关键词： Stem cell Signaling Differentiation Gene Genome Re

The role of protein phosphorylation in the regulation of class switch recombination

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BIOCELL 2020年第4期44卷 545-558页

作者： KANO tanabe RYUTARO KAJIHARA Department of Medical Technology Faculty of Health ScienceKumamoto Health Science UniversityKumamoto861-5598Japan Department of Biomedical Laboratory Sciences Faculty of Life SciencesKumamoto UniversityKumamoto862-0976Japan Center for Immunotherapy Roswell Park Comprehensive Cancer CenterBuffaloNY 14263USA

Antibody is an important part of adaptive immune system and is produced only by B *** are five main classes(IgM,IgD,IgG,IgA,IgE)and some subclasses in *** and IgD are produced by mature naïve B *** the other hand,IgG,IgA and IgE are produced by activated antigen-specific B cells via class switch recombination(CSR).CSR is the irreversible DNA rearrangement from upstream to downstream classes in immunoglobulin heavy chain ***-stimulations of CD40 ligand(CD40L)and cytokines are required for induction of CSR by activating several transcription *** signal transduction pathways involve many protein *** or dephosphorylation of cellular protein is an important kind of post-translational protein modification in intracellular signal *** the fact,more than one third of the intracellular proteins are said to be transiently phosphorylated in human.A protein kinase is an enzyme that catalyzes the addition of phosphate to substrate ***,a protein phosphatase catalyzes the removal of phosphate from the *** review focuses on the mechanism of CSR controlled by protein phosphorylation and *** provide the role of protein kinase and phosphatase in the regulation of class switch recombination.

关键词： Antibody Kinase Phosphatase Signal Transduction

Matrine promotes neural circuit remodeling to regulate motor function in a mouse model of chronic spinal cord injury

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Neural Regeneration Research 2019年第11期14卷 1961-1967页

作者： Norio tanabe Tomoharu Kuboyama Chihiro Tohda Division of Neuromedical Science Institute of Natural Medicine University of Toyama

In chronic phase of spinal cord injury, functional recovery is more untreatable compared with early intervention in acute phase of spinal cord injury. In the last decade, several combination therapies successfully improved motor dysfunction in chronic spinal cord injury. However, their effectiveness is not sufficient. We previously found a new effective compound for spinal cord injury, matrine, which induced axonal growth and functional recovery in acute spinal cord injury mice via direct activation of extracellular heat shock protein 90. Although our previous study clarified that matrine was an activator of extracellular heat shock protein 90, the potential of matrine for spinal cord injury in chronic phase has not been sufficiently evaluated. Thus, this study aimed to investigate whether matrine ameliorates chronic spinal cord injury in mice. Once daily intragastric administration of matrine(100 μmol/kg per day) to spinal cord injury mice were starte at 28 days after injury, and continued for 154 days. Continuous mat rine treatment improved hindlimb motor function in chronic spinal cord injury mice. In injured spinal cords of the matrine-treated mice, the density of neurofilament-H-positive axons was increased. Moreover, matrine treatment increased the density of bassoon-positive presynapses in contact with choline acetyltransferase-positive motor neurons in the lumbar spinal cord. These findings suggest that matrine promotes remodeling and reconnection of neural circuits to regulate hindlimb movement. All protocols were approved by the Committee for Animal Care and Use of the Sugitani Campus of the University of Toyama(approval No. A2013 INM-1 and A2016 INM-3) on May 7, 2013 and May 17, 2016, respectively.

关键词： matrine chronic spinal cord injury axonal growth synaptogenesis hindlimb locomotor presynapse immunohistochemistry Basso Mouse Scale Body Support Score Sophora flavescens

Development of a nanostructured filter for pyrolysis wax purification:Effects of particulate filter aids

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Particuology 2021年第1期19卷 164-172页

作者： Juliano Missau Daniel Assumpcao Bertuol Eduardo Hiromitsu tanabe Environmental Processes Laboratory(LAPAM) Chemical Engineering DepartmentFederal University of Santa Maria–UFSMAvenida Roraima 100097105-900Santa MariaRSBrazil

Wax obtained from the pyrolysis of polyethylene waste can contain inorganic contaminants and must be purified before *** evaluated different filter aids(perlite,sand,and rice husk ash)for the filtration of a crude wax and a pyrolysis wax through a filter medium that was coated with nylon 6 nanofibers to improve filtration *** first examined the performance of the filter aids in improving crude wax filtration,with the filtration time,temperature,and pressure held constant at 1 h,170℃,and 2.5 bar,*** wax was then produced by pyrolysis of high-density polyethylene(HDPE)waste in the temperature range 425-475℃.The best filter aid was perlite,which had a filtrate production rate of 5.47×10^(-5)m^(3)/*** highest oily wax yield(87.8%)was achieved at a pyrolysis temperature of 425℃.The assembly comprising the filter medium coated with nylon 6 nanofibers plus perlite as a filter aid was most suitable for removing impurities from the oily wax generated by the HDPE pyrolysis as it achieved a purification efficiency of 99.9%.

关键词： HDPE pyrolysis wax Plastic solid waste Nanofiber-coated filter Filter aids Filtration