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Zr-Cr-Fe合金马氏体相变过程中三变体团簇的择优形成及其晶体学分析（英文）

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稀有金属材料与工程 2019年第2期48卷 426-432页

作者：王建民梁御阳邱日盛栾佰峰 Murty kl 刘庆重庆大学重庆400044 北卡罗莱纳州立大学

采用ECC, TEM和EBSD表征技术,研究了Zr-Cr-Fe合金经β相淬火后的马氏体组织特征。结果表明:马氏体相变过程中,任一高温β相都能够转变为12个α马氏体变体。而这12个α马氏体变体并不是随机分布的,而是择优形成了4个亚区域。每一个亚区... 详细信息

采用ECC, TEM和EBSD表征技术,研究了Zr-Cr-Fe合金经β相淬火后的马氏体组织特征。结果表明:马氏体相变过程中,任一高温β相都能够转变为12个α马氏体变体。而这12个α马氏体变体并不是随机分布的,而是择优形成了4个亚区域。每一个亚区域由一种三变体团簇组成,而该三变体团簇表现为典型的三角形自我协调形貌。进一步晶体学分析表明:组成每一个团簇的这3个马氏体变体与母相之间存在一个共同的β极点,同时该三变体相互之间的取向关系为60°/。由于在β→α马氏体相变过程中存在形状应变,而三变体团簇的形成能够最大程度的协调该应变。

关键词： Zr-Cr-Fe Burgers取向关系自我协调三变体团簇

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与皮肤科有关的小儿传染性疾病的新进展

国外医学（皮肤性病学分册） 1992年第2期18卷 91-93页

作者： Grossman kl 江超

5年来,小儿传染病领域已取得不少进展,其中有许多与皮肤科有关。已经明确幼儿急疹的病原为人类疱疹病毒6型。尽管幼儿急疹的典型表现为婴幼儿的热退疹出,但不伴发疹的发热及不伴发热的出疹也认为与此病毒有关。现已证实,传染性红斑及猫... 详细信息

5年来,小儿传染病领域已取得不少进展,其中有许多与皮肤科有关。已经明确幼儿急疹的病原为人类疱疹病毒6型。尽管幼儿急疹的典型表现为婴幼儿的热退疹出,但不伴发疹的发热及不伴发热的出疹也认为与此病毒有关。现已证实,传染性红斑及猫抓病的病原分别为人类细小病毒B_(19)型及小的多型杆菌。先天梅毒的病例数日益剧增,由于父母滥用药物,使许多患儿未得到产前保健。脓疱疮的病原正由链球菌感染占优势转变成以金黄色葡萄球菌感染为主。

关键词：传染病儿童皮肤病病原

非平衡磁控溅射氟化类金刚石(DLC)薄膜的结构和性能

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中国机械工程 1999年第1期10卷 93-96页

作者：赵建生 Choy,kl 华中理工大学

使用非平衡磁控溅射方法，以Ｃ２Ｈ２为反应气，Ｃ２Ｆ２为氟化气沉积了含氟和不含氟的类金刚石（ＤＬＣ）薄膜。用Ｘ射线光电子谱仪（ＸＰＳ）及Ｒａｍａｎ光谱仪分析薄膜的成分及结构。试验了薄膜的力学性能并讨论了组织结构对性能的... 详细信息

使用非平衡磁控溅射方法，以Ｃ２Ｈ２为反应气，Ｃ２Ｆ２为氟化气沉积了含氟和不含氟的类金刚石（ＤＬＣ）薄膜。用Ｘ射线光电子谱仪（ＸＰＳ）及Ｒａｍａｎ光谱仪分析薄膜的成分及结构。试验了薄膜的力学性能并讨论了组织结构对性能的影响。结果表明，含氟ＤＬＣ仍具有典型的ＤＬＣ的Ｒａｍａｎ光谱特性。氟降低薄膜中的Ｉ（Ｄ）／Ｉ（Ｇ）比率，使薄膜中的ＳＰ３键相对含量下降。随着氟含量的增加，ＤＬＣ的硬度下降，摩擦系数减小。适当含量Ｆ元素可以提高薄膜划痕试验的临界负荷，增加薄膜与基体的结合强度。

关键词：磁控溅射类金刚石薄膜 DLC 力学性能

Pioglitazone after ischemic stroke

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中华物理医学与康复杂志 2016年第9期38卷 716-716页

作者： Kernan WN Viscoli CM Furie kl

BACKGROUND AND OBJECTIVE As insulin resistance is present in more than 50%of patients without diabetes who have had an ischemic stroke or TIA,addressing this issue seems central to the treatment of these *** one medication,pioglitazone,a peroxisome proliferator-activated receptor y agonist,has been found to reduce the risk of cardiovascular events in patients with type 2 diabetes,this

关键词：吡格列酮脑缺血 2型糖尿病中风胰岛素抵抗心肌梗死激动剂心血管

Potentiating paired corticospinal motoneuronal plasticityafter spinal cord injury

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中华物理医学与康复杂志 2018年第9期40卷 643-643页

作者： Bunday kl Urbin MA Perez MA

BACKGROUND AND OBJECTIVE It is known that pairing noninvasive stimulation of the primary motor cortex and a peripheralnerve, known as paired corticospinal transmission-motoneuronal stimulation （PCMS）, enhances corticospinal transmission in patients withchronic spinal cord injury （SCI）. This study examined whether voluntary activity can also increase the excitability of spinal motoneurons,subsequently potentiating PCMS effects on eorticospinal transmission in chronic SCI patients.

关键词：原发性运动皮层外周神经治疗方法临床分析

Nsaids: effects on osteoarthritis symptoms and disease progression

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中华物理医学与康复杂志 2015年第4期 257-257页

作者： Lapane kl Yang S Driban JB

BACKGROUND AND OBJECTIVE An estimated 27 million people in the United States have osteoarthritis (OA). Clinical guidelines for the management of this disease include both pharmacologic and nonpharmacologic therapies. This study was designed to estimate the extent to which prescription nonsteroidal anti-inflammatory drugs (NSAIDs), taken over the long-term, affect the symptoms and disease progression of *** Between 2004 and 2006, the Osteoarthritis Initiative (OAI) collected baseline data from four study sites, including a total of 4, 796 patients with established OA, or who were at high risk for developing OA of the knee, and were not taking an NSAID at study onset, and who began use during the study period. The participants were evaluated for four years with annual follow-up assessments. All were assessed for changes in the Western Ontario and McMaster University Osteoarthritis Index (WOMAC), as well as for radiographic progression over four years. These outcomes were compared between NSAID users and *** Among nonusers at baseline, six percent initiated treatment by one year, with 52% reporting regular use. Any prescription NSAID reported on the most recent assessment was not associated with scores for pain, stiffness or physical function on the WOMAC or with the joint space width. However, among those reporting use of prescription NSAIDs at all three of the yearly assessments, improvements were noted in patient reports of stiffness and function, with delayed joint space width *** This study found that long-term, but not short-term, use of NSAIDS is associated with important changes in stiffness, physical function and joint space width among patients with osteoarthritis of the knee.

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Power Quality Issues Concerning Photovoltaic Generation in Distribution Grids

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Smart Grid and Renewable Energy 2015年第6期6卷 148-163页

作者： Jaan Niitsoo Marek Jarkovoi Paul Taklaja Joni klüss Ivo Palu Department of Electrical Power Engineering Tallinn University of Technology Tallinn Estonia Department of Electrical Engineering Tallinn University of Technology Tallinn Estonia Department of Electrical Engineering and Automation Aalto University Helsinki Finland

Unregulated utilization of renewable generation including residential photovoltaic (PV) systems can have a significant impact on load characteristics in distribution networks. For improving PV generation capabilities, power quality aspects have to be coordinated with present load characteristics. This paper discusses the harmonic content of PV generation and the influence to power quality indicators in residential distribution networks. PV generation measurement results including current harmonic amplitude and phase angle values are presented. Results of different modelling scenarios are analysed and a simplified model of harmonics in PVs is offered. The results of the study showed a moderate additional harmonic distortion in residential load current and voltage distortion at the substation’s busbar when PVs were added. Novelty of the paper is that harmonic current values at higher orders are presented and analysed. The results pointed out in this paper could be further used for modelling the actual harmonic loads of the PVs in distribution networks.

关键词： Current Measurement Load Modelling Photo Voltaic Power Quality Power System Harmonics

Electromagnetic transduction for low back pain

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中华物理医学与康复杂志 2017年第11期39卷 810-810页

作者： Krath A klüter T Stukenberg M

BACKGROUND AND OBJECTIVE Studies of pulsed electromagnetic fields, approved by the FDA in 1979 for the treatment of bonefractures and non-unions, have suggested that this treatment can up-regulate anti-inflammatory factors, and down-regulate pro-inflammatoryfa（tors. This study was designed to assess the efficacy of electromagnetic transduction therapy （EMTT） for the treatment of low back pain（ LBP ）.

关键词：脉冲电磁场骨折治疗方法发展现状

浅析罗兰电鼓教育的优势——罗兰TD9KX型电鼓强大的功能

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乐器 2009年第8期 79-81页

作者： kl

在众多的打击乐器中,爵士鼓作为一件具有代表性的打击乐器特别的受到孩子们的青睐,这也正迎合了儿童喜欢敲敲打打的天性。也许有人会问学习爵士鼓对儿童智力的发育具体有哪些好处呢?

关键词：音乐教育 KX型打击乐器优势智力发育想象能力成长过程审美能力