搜索结果: 1-15 共查到“L3”相关记录29条 . 查询时间(0.156 秒)
探讨L3椎旁神经阻滞联合骶前-腰大肌后间隙阻滞对全膝关节置换患者术后静脉自控镇痛的影响。方法 53例ASAⅠ-II级在全麻下初次行单侧全膝关节置换术的患者。随机分成两组:自控静脉镇痛（A组，对照），L3椎旁神经阻滞联合骶前-腰大肌后间隙阻滞+自控静脉镇痛（B组）。A组患者常规行麻醉诱导和全麻维持。B组患者麻醉诱导前行L3椎旁神经阻滞联合骶前-腰大肌后间隙阻滞。B 组神经阻滞后20min内测定阻滞平...
中孕期母血清甲胎蛋白异质体L2和L3筛查胎儿唐氏综合征的临床价值
中孕期 母血清甲胎蛋白异质体 L2 L3 筛查胎儿 唐氏综合征
2020/12/9
评价中孕期母血清甲胎蛋白异质体L2和L3（AFP-L2、AFP-L3）筛查胎儿唐氏综合征（DS）的临床价值。方法收集经羊水细胞染色体核型分析确诊为DS胎儿的孕妇88例（病例组）和胎儿发育正常的孕妇61例（对照组）。采用酶联免疫法检测两组孕妇血清的AFP-L2和AFP-L3水平。用ROC曲线确定最佳临界值、AUC，并对AFP-L2和AFP-L3的筛查效能进行评价。
探讨联合运用CT增强扫描与ELISA法检测血清肿瘤标志物甲胎蛋白异质体（alpha-fetoprotein isoforms，AFP-L3）、高尔基体蛋白73（golgiprotein 73，GP73）浓度诊断原发性肝癌(primary hepatic carcinoma，PHC)的临床价值。方法：选取214例原发性肝细胞癌患者（PHC组）和242例良性肝病患者（良性肝病组）纳入本研究，分析所有病...
L1 and L2 Distance Effects in Learn ing L3 Dutch
cross-linguistic difference L1 distance effect L2 distance effect lexicon morphology L3 learning
2016/5/3
Many people speak more than two languages. How do languages acquired earlier affect the learnability of additional languages? We show that linguistic distances between speakers’ first (L1) and second ...
VALIDATION OF SMOS L2 AND L3 SOIL MOISTURE PRODUCTS OVER THE DUERO BASIN AT DIFFERENT SPATIAL SCALES
Soil moisture SMOS Validation
2015/5/7
An increasing number of permanent soil moisture measurement networks are nowadays providing the means for validating new remotely sensed soil moisture estimates such as those provided by the ESA’s S...
荷叶塘为一块我国降落的原始3型普通球粒陨石,因此具有重要研究意义。本文对荷叶塘陨石光薄片及粉末样品的岩石学、矿物学和全岩组成地球化学特征进行研究,为这块陨石的深入研究提供重要基础数据。研究表明荷叶塘陨石具L3型陨石岩石学特征,具典型的球粒陨石结构,球粒清晰,球粒结构类型多,基质重结晶程度低,组成模式为:球粒80vol%,金属和硫化物含量为5vol%,基质15vol%。矿物化学成分表明,该陨石球粒以...
泛素蛋白酶体碳末端水解酶L3
泛素蛋白酶体碳末端水解酶L3 肿瘤 疾病
2014/11/12
泛素蛋白酶体碳末端水解酶L3(Ubiquitin C-terminal hydrolases L3，UCH-L3)是泛素蛋白酶体中碳末端水解酶的一种，可以将泛素分子从底物上水解下来，使得泛素蛋白酶体在细胞内再循环利用。目前对UCH-L3的研究还不充分，近年来发现它在多种疾病中都呈现高表达，可能与多种疾病的发生和发展有一定的联系。
Flush+Reload: a High Resolution, Low Noise, L3 Cache Side-Channel Attack
Side Channel Attack Cache
2014/3/11
Flush+Reload is a cache side-channel attack that monitors access to data in shared pages. In this paper we demonstrate how to use the attack to extract private encryption keys from GnuPG. The high res...
脊柱L3-L5段机械模型的力学特性分析
SolidEdge 脊柱有限元 ANSYS 力学分析
2012/8/10
借助计算机辅助设计软件SolidEdge，根据人体解剖学数据建立了人体脊柱L3-L5段近似三维几何模型，并利用有限元分析软件ANSYS进行赋值，模拟了脊柱L3-L5段的结构特性、材料特性、接触特性。将椎骨划分为皮质骨、松质骨等结构，用接触连接的方法模拟了椎骨与椎间盘之间、小关节之间的连接情况，采用实体单元Solid187对其进行网格划分。对该三维有限元模型进行加载分析，得到其在200N轴向力作用下...
Detailed L3 measurements of Bose-Einstein correlations and a region of anti-correlations in hadronic Z^0 decays at LEP
Femtoscopic correlations Bose-Einstein correlations single particle spectra source function
2010/3/15
L3 preliminary data of two-particle Bose-Einstein correlations are reported for hadronic Z^0 decays in e+e- annihilation at LEP. The invariant relative momentum Q is identified as the eigenvariable of...
Generative Syntactic Transfer in L2 and L3 Acquisition via the Channel of Translation
L2A L3A FFFH FAFT Persian-monolingual Arabic-Persian bilingual Oral/written translation
2009/8/21
The purpose of this study was two-fold: it primarily intended to incorporate some insights into the newly-explored field of L3A: secondly, it aimed to highlight the significance of translation as a va...
The Effect Of A Formal Instruction Context On The Lexico-Grammatical Development Of Advanced Learners Of L3 English
formal instruction study abroad L3 English
2009/8/20
In the present article two different L3 learning contexts are distinguished: formal instruction (FI)
and study abroad (SA). We analyze the effect of a formal instruction learning context (FI) on
stu...
LEP/L3亮度测量中的误差讨论
误差 亮度测量 LEP/L3
2009/7/30
本文使用Monte Carlo方法讨论了LEP/L3亮度测量中的几个主要系统误差来源和消除方法.
L3量能器束流测试中的e/π分辨研究
e/π分辨研究 束流测试 量能器 L3
2009/6/18
本文分析了L3实验的量能器束流测试数据,提出了用"key cut"和"Δ cut"作为e/π分辨的手段.结果表明,在4—20GeV能量区域内,e/π分辨均高于93.7%.