搜索结果: 1-12 共查到“quadrant”相关记录12条 . 查询时间(0.112 秒)
比较Quadrant通道系统下经椎间孔椎间植骨融合术(minimally invasive transforaminal lumbar interbody fusion，MIS-TLIF)与传统的后路椎间盘植骨融合术(posterior lumbar interbody fusion，PLIF)治疗巨大腰椎间盘突出症的临床效果，并评价MIS-TLIF技术的安全性和有效性。
探讨Quadrant通道下微创经椎间孔腰椎椎间融合术（minimally invasive transforaminal lumbar interbody fusion，MIS-TLIF）术后手术部位感染（surgical site infection，SSI）的危险因素。方法：收集2015年1月～2018年12月在重庆市梁平区人民医院行Quadrant通道下MIS-TLIF治疗的患者资料，将术后...
比较经皮椎间孔镜(PTED)和Quandrant微创通道下治疗单节段腰椎间盘突出症（LDH）的临床疗效。方法 单节段LDH病人74例，按手术方式不同将病人分为两组，PTED组45例，采用经皮椎间孔镜下治疗；Quadrant微创通道组29例，采用Quandrant微创通道下治疗，比较两组手术时间、失血量、切口长度、卧床休息时间、住院时间、手术并发症。采用视觉模拟疼痛评分(VAS)、Oswestry功...
初步探讨Sextant系统下经皮双侧椎弓根螺钉固定，结合Quadrant系统下经后路单侧经椎间孔腰椎椎体间融合技术(TLIF)治疗成人腰椎退行性疾病的手术经验，比较本方法与传统开放TLIF手术的临床效果。方法 选择2009年10月至2010年12月41例腰椎退行性疾病患者，分别采用Sextant系统经皮椎弓根螺钉内固定，结合Quadrant系统下椎管减压、椎间植骨融合手术(21例，微创组)和传统开...
Four quadrant FGMOS analog multiplier
FGMOS four quadrant analog multiplier rail-to-rail differential amplifier
2011/3/23
A novel four-quadrant analog multiplier using floating gate MOS (FGMOS) transistors operating in the saturation region is presented. The drain current is proportional to the square of the weighted sum...
Constraints on the Cosmic-Ray Density Gradient beyond the Solar Circle from Fermi gamma-ray Observations of the Third Galactic Quadrant
cosmic rays – gamma rays ISM – ISM general
2010/11/10
We report an analysis of the interstellar-ray emission in the third Galactic quadrant measured
by the Fermi Large Area Telescope. The window encompassing the Galactic plane from longitude 210◦ ...
Layering of the Poisson process in the quadrant
Planar Poisson process kth layer process modified Bessel function
2009/9/21
We csnsider the hereasing sequenm af non-interngetirng
monotone decreasing srg prommes Y: (F}, n = 1, 2, . . , (t > 01,
whose jump points mver all the points of the h~mogencous rate 1
Poisson proam...
Deep photometric studies in the third quadrant：NGC 2467
Deep photometric third quadrant NGC 2467
2009/6/25
Deep photometric studies in the third quadrant：NGC 2467。
CO(J=2->1) In-Plane Survey of the 4th Galactic Quadrant
CO(J=2->1) In-Plane Survey 4th Galactic Quadrant
2009/6/5
CO(J=2->1) In-Plane Survey of the 4th Galactic Quadrant。
The scale-invariant spacings lemma due to Arratia, Barbour and Tavaré establishes the distributional identity of a self-similar Poisson process and the set of spacings between the points of this proce...
Convergence of Jamison-Type Weighted Sums of Pairwise Negatively Quadrant Dependent Random Variables
pairwise NQD sequence weighted sum
2007/12/10
Under very general weight function, we discuss the convergence of Jamison-type weighted sums of pairwise negatively quadrant dependent (NQD) r.v.'s. The results on i.i.d. setting of [3] and [1] are ex...
LIMIT THEOREMS FOR SUMS AND MAXIMA OF MIRWISE NEGATIVE QUADRANT DEPENDENT RANDOM VARIABLES
Partial sums and maxima pairwise negati
2007/8/7
Consider a sequence of pairwise negative quadrant dependent random variables. This paper studies the almost sure convergence of sequences of partial sums and maxima.