检索结果-南通市图书馆

Estimating the production rates of D-wave charmed mesons via the semileptonic decays of bottom mesons

在线全文

学校读者我要写书评

暂无评论

Chinese Physics C 2019年第2期43卷 53-76页

作者： Kan Chen Hong-Wei Ke Xiang Liu takayuki matsuki School of Physical Science and Technology Lanzhou University Research Center for Hadron and CSR Physics Lanzhou University and Institute of Modern Physics of CAS School of Science Tianjin University Tokyo Kasei University Theoretical Research Division Nishina CenterRIKEN

Using the covariant light-front approach with conventional vertex functions, we estimate the production rates of D-wave charmed/charmed-strange mesons via the B_((s)) semileptonic decays. As the calculated production rates are significant, it seems possible to experimentally search for D-wave charmed/charmed-strange mesons via semileptonic decays, which may provide an additional approach for exploring D-wave charmed/charmed-strange mesons.

关键词： light-front quark model semileptonic decay charmed/charmed-strange meson

在线全文

学校读者我要写书评

暂无评论

Λc重子谱疑难(英文)

原子核物理评论 2018年第1期35卷 1-4页

作者：吕齐放董宇兵刘翔 matsuki takayuki 湖南师范大学物理系长沙410081 中国科学院高能物理研究所北京100049 中国科学院大科学装置理论物理研究中心北京100049 兰州大学物理科学与技术学院兰州730000 兰州大学&中国科学院近代物理研究所强子与CSR物理研究中心兰州730000 Tokyo Kasei University 1-18-1 KagaItabashiTokyo 173-8602Japan Theoretical Research Division Nishina CenterRIKENⅥkOSaitama 351-0198Japan

Λ_c+重子家族存在一个疑难,也就是重夸克有效理论预言的轨道角动量为L=2的多重态中的态在实验上是缺失的,而且已发现的Λ_c(2765)+和Λ_c(2940)+的JP量子数仍然未知。在本工作中,我们使用双夸克图像计算了重子的质量,研究了Λ_c(2765)... 详细信息

Λ_c+重子家族存在一个疑难,也就是重夸克有效理论预言的轨道角动量为L=2的多重态中的态在实验上是缺失的,而且已发现的Λ_c(2765)+和Λ_c(2940)+的JP量子数仍然未知。在本工作中,我们使用双夸克图像计算了重子的质量,研究了Λ_c(2765)+和Λ_c(2940)+的可能归类以及仍缺失的具有L=2和量子数的Λ_c+态,进而指出Λ_c(2880)+的峰结构中实际上已经包含了L=2、这一缺失态,并建议Λ_c(2765)+和Λ_c(2940)+的量子数应分别为2S(1/2+)和2P(1/2-)。

关键词： Λc家族相对论夸克模型对夸克

Injury/ischemia-induced stem cells: up-to-date knowledge and future perspectives for neural regeneration

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第3期20卷 797-798页

作者： takayuki Nakagomi Institute for Advanced Medical Sciences Hyogo Medical UniversityNishinomiyaJapan Department of Therapeutic Progress in Brain Diseases Hyogo Medical UniversityNishinomiyaJapan

Brain injuries like ischemic stroke induce endogenous stem cell production. Although the precise traits of stem cells in pathological brains remain unclear, we previously demonstrated that injury/ischemia-induced stem... 详细信息

关键词： ischemia injuries

在线全文

学校读者我要写书评

暂无评论

双重味重子的理想混合角（英文）

原子核物理评论 2021年第4期38卷 373-379页

作者：松木孝幸陈殿勇刘翔吕齐放東京家政大学东南大学物理学院兰州大学物理科学与技术学院兰州大学&中国科学院近代物理研究所强子与CSR物理研究中心湖南师范大学物理系湖南省量子效应及其应用协同创新中心教育部低维量子效应与调控重点实验室

本工作研究了双重味重子的理想混合角。理想混合角是将;（l;）J态转换为具有确定重夸克对称性的态时所对应的旋转角度。在标准的ρ-λ图像下,求得了L;=0情形时重夸克对称性的态（J,j;）和（J,s;+j;）=（J,{;l;/;l;}）态之间的理想混合角... 详细信息

本工作研究了双重味重子的理想混合角。理想混合角是将;（l;）J态转换为具有确定重夸克对称性的态时所对应的旋转角度。在标准的ρ-λ图像下,求得了L;=0情形时重夸克对称性的态（J,j;）和（J,s;+j;）=（J,{;l;/;l;}）态之间的理想混合角,其中j;=l;+s;,s;=s;+s;和j;=s;+L;。本工作指出当研究双重味重子的衰变性质时,需要采用（1S1p）1/2;和（1S1p）3/2;等理想混合态。

关键词：混合角双重味重子重夸克对称性

Monogenic gene therapy for glaucoma and optic nerve injury

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第3期20卷 815-816页

作者： Chikako Harada Xiaoli Guo takayuki Harada Visual Research Project Tokyo Metropolitan Institute of Medical ScienceTokyoJapan

The prevalence of glaucoma, the second leading cause of global blindness, is increasing due to aging populations. In glaucoma, degeneration of the optic nerve and retinal ganglion cells(RGCs) causes visual field defec... 详细信息

关键词： visual glaucoma degeneration

Asking one mechanism in glial cells during neuroinflammation

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第4期20卷 1077-1078页

作者： Xiaoli Guo Chikako Harada takayuki Harada Visual Research Project Tokyo Metropolitan Institute of Medical ScienceTokyoJapan

Multiple sclerosis(MS),which is characterized by inflammatory demyelination in the central nervous system(CNS),is the most common neurological disease in the young adult *** autoimmune encephalomyelitis(EAE),an animal model of MS,is often used in preclinical *** data indicate that in addition to immune cells such as T cells and dendritic cells,CNS resident microglia and astrocytes play important roles in demyelinating neuroinflammation(Healy et al.,2022).In particular,microglia are key immune-competent cells that can respond to environmental *** depletion of transforming growth factor-β-activated kinase 1,a mitogen-associated protein kinase kinase kinase,in microglia is reported to reduce CNS inflammation and diminish axonal and myelin damage *** suggests that elucidating the mechanisms of microglia-specific responses during pathologies may help in the development of treatments that reduce EAE/MS disease severity(Goldmann et al.,2013).

关键词： inflammation clinical

Surface modification and characterization of F-Co doped spinel LiMn_2O_4

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2006年第z1期25卷 33-38页

作者： WATANABE takayuki Department of Environmental Chemistry and Engineering Tokyo Institute of Technology 4259 Nagatsuta Yokomaha 226-8502 Japan

Spinel LiCo0.09Mn1.91O3.92F0.08 as cathode material was modified with LiCoO2 by the sol-gel method, and the crystal structure, morphology and electrochemical performance were characterized with XRD, SEM, EDS, AAS and charge-discharge test in this paper. The results show that a good clad coated on parent material can be synthesized by the sol-gel method, and the materials with modification have perfect spinel structure. LiCo0.09Mn1.91O3.92F0.08 materials coated by LiCoO2 improve the stability of crystal structure and decrease the dissolution of Mn into electrolyte. With the LiCoO2 content increasing, the specific capacity and cycle performance of samples are improved. The capacity loss is also suppressed distinctly even at 55 ℃.

关键词： lithium ion batteries spinel LiMn2O4 ion doping surface coating

Prevention of recurrence after surgery for Crohn's disease: Efficacy of infliximab

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2010年第43期16卷 5405-5410页

作者： takayuki Yamamoto Inflammatory Bowel Disease Center and Department of Surgery Yokkaichi Social Insurance Hospital

After surgery for Crohn's disease (CD), early endoscopic lesions are frequently observed despite no symptomatic recurrence. The severity of lesions found at postoperative endoscopy is reported to be a strong predictive factor for future clinical recurrence. If endoscopic lesions in the early postoperative period can be reduced with medications, symptomatic recurrence will likely be delayed and decreased. Before the introduction of biologic therapies, various medications were used for the maintenance of clinical remission after surgery; however, few demonstrated consistent efficacy. Infliximab is a recombinant anti-tumor necrosis factor-α antibody. Although infliximab is one of the most effective medications in the management of CD, its efficacy for early endoscopic lesions after surgery has not yet been assessed. The author and colleagues recently conducted a prospective study in order to investigate the impact of infliximab on early endoscopic lesions after resection for CD. We found that infliximab therapy showed clear suppressive effects on clinical and endoscopic disease activity in patients with early endoscopic lesions after resection.

关键词： Crohn’s disease Postoperative recurrence Endoscopic lesion Infliximab

Decomposition of Glycerine by Water Plasmas at Atmospheric Pressure

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Plasma Science and Technology 2013年第4期15卷 357-361页

作者： takayuki WATANABE NARENGERILE Department of Environmental Chemistry and Engineering Tokyo Institute of Technology 4259 NagatsutaYokohama 226-8502 Japan

High concentration of aqueous glycerine was decomposed using a direct current （DC） plasma torch at atmospheric pressure. The torch can generate the plasma with water as the plasma-supporting gas in the absence of any additionM gas supply system and cooling devices. The results indicated that 5 mol% glycerine was completely decomposed by water plasmas at arc powers of 0.55~1.05 kW. The major products in the effluent gas were H2 （68.9%~71.1%）, CO2 （18.9%~23.0%）, and CO （0.2%~0.6%）. However, trace levels of formic acid （HCOOH） and formaldehyde （HCHO） were observed in the liquid effluent. The results indicated that the water plasma waste treatment process is capable of being an alternative green technology for organic waste decomposition.

关键词： thermal plasma water plasma glycerine decomposition