查询词典 recurrent

Objective To investigate the clinical features, causes of blindness and diagnosis of Vogt Koyanagi Harada syndrome Methods The data of 157 patients with VKH syndrome were reviewed and analyzed Patients were carefully examined with slit lamp, ophthalmoscope, three mirror lens, fundus fluorescein angiography, indocyanine green angiography and HLA typing Results Headache was noted in 73 5% of these patients Simultaneous involvement of both eyes occurred in 80 8% of these patients Chroiditis,papilledema and edema of the retina adjacent to the optic nerve were noted in 100% of these patients in the posterior uveitis stage, whereas recurrent granulomatous anterior uveitis (98 4%),"sunset glow" fundus (95 8%) and Dalen Fuchs nodules (71 2%) were the common ocular findings in the recurrent anterior uveitis stage The common causes of blindness were papillitis, exudative retinal detachment and complicated cataract in the posterior uveitis stage, anterior uveal involvement stage and its recurrent stage Poliosis (36 3%) and alopecia (35 0%) were the most common extraocular findings Early irregular patches of fluorescence, followed by localized hyperfluorescent spots were the typical findings of FFA Dilation of choroidal vessels and leakage of ICG from the choroidal vessels were the common ICGA findings The prevalence of HLA DR4 and HLA DRw53 in patients (54 9% and 71 8% respectively) was significantly higher than that in controls (14 7% and 38 2% respectively) Conclusions VKH syndrome is characterized by chroiditis, papillitis or neuroretinitis in the posterior uveitis stage, followed by a generalized uveitis with a typical recurrent granulomatous anterior uveitis Extraocular findings and relevant examinations including FFA, ICGA and HLA typing are helpful to the diagnosis of VKH syndrome

目的探讨Vogt-Koyanagi-Harada综合征患者的临床特征、盲目原因及诊断等有关问题。方法对在1996年1月至2000年12月间就诊资料完整的157例VKH综合征患者进行回顾性分析，并对裂隙灯、眼底镜、三面镜、荧光素眼底血管造影(fundus fluorescein angiography，FFA)、吲哚青绿血管造影(indocyanine green angiography，ICGA)及人类白细胞抗原分型等检查结果进行分析。结果 VKH综合征最常见的前驱症状为头痛(102例，73.5%)，双眼同时患病118例(80.8%)；后葡萄膜炎期眼部主要表现为脉络膜炎、视乳头及附近视网膜水肿(100.0%)；前葡萄膜炎反复发作期眼部表现为复发性肉芽肿性前葡萄膜炎(128例，98.4%)、晚霞状眼底改变(95.8%)及Dalen-Fuchs结节(71.2%)；后葡萄膜炎期、前葡萄膜受累期及前葡萄膜炎反复发作期导致盲目的主要原因分别为视乳头炎、视网膜脱离及并发性白内障；毛发变白(36.3%)及脱发(35.0%)是最常见的眼外表现；炎症活动期FFA典型表现为斑驳状高荧光，ICGA发现脉络膜血管扩张、通透性增高等改变；VKH综合征患者HLA-DR4及HLA-DRw53的阳性率(54.9%及71.8%)显著高于正常对照组(14.7%及38.2%)。结论 VKH综合征患者在后葡萄膜炎期眼部典型表现为双侧脉络膜炎、视乳头炎或神经视网膜炎，随后出现以反复发作的肉芽肿性前葡萄膜炎为特征的全葡萄膜炎。眼外症状及相关的辅助检查包括FFA、ICGA 及HLA分型等有助于VKH综合征的诊断。

To resolve the influence of uncertainty and nonlinearity on the high-precision turntable servo system, an inverse control method based on diagonal recurrent neural network is presented.

针对转台伺服系统中存在的不确定性和非线性因素，提出一种基于对角回归神经网络(diagonal recurrent neural network，DRNN)的逆控制方法。

In this article, firstly, the significance, features, conceptual development and implementary principles of recurrent education are expounded,and its economic value is illustrated in terms of its practicality and economic function; then the importance and properties of lifelong learning are analysed,and it is held that the distinguishment of and stress on recurrent education in the practice of lifelong education is the most essential and important means for the practical application of lifelong learning notions;lastly,the current situation of and obstacles to recurrent education are made clear and the implementary tactics and approaches are presented.

摘要］本文首先论述了回流教育的意义、特征、理念的发展以及实施原则，接着从回流教育的实用性及其经济功能来说明回流教育的经济价值；然后再论述终身学习的意义与特征，并从终身学习的实践途径中凸显回流教育的实施乃是实践终身学习理念最基础、最重要的途径。此外，文中也指明了目前实施回流教育的现况及阻力，提出了回流教育的实施策略与实施途径。

The magnitude of sliding mode switching gain is the key reason causing system chattering. Self-recurrent wavelet neural networks is used to estimate sliding mode switching gain on-line, which can reduce chattering caused by sliding mode control effectively.

滑模开关增益的大小是造成系统抖振的关键，采用自回归小波神经网络(Self-recurrent wavelet neural networks， SRWNN)在线估计滑模开关增益的大小可以有效降低滑模控制造成的抖振。

Materials and Methods: 31 patients with PORJLP and 40 with adult-onset recurrent laryngeal papillomatosis were retrospectively analyzed for clinical behavior.

材料和方法：对31例PORLP和40例成人始发型复发性喉乳头瘤病(adult-onset recurrent laryngeal papillomatosis，AORLP)患者进行临床分析。

The purpose of the article was to evaluate human papilloma virus infection in paediatric-onset recurrent laryngeal papillomatosis,and determine the prognostic role of the HPV types for clinical courses.

本文旨在观察小儿始发型复发性喉乳头瘤病(paediatric-onset recurrent laryngealpapillomatosis，PORLP)组织中HPV感染情况，探讨其复发原因，以及病毒类型作为临床特征标志物的可能性。

Objective The main purpose of the present study was investigate the Natural Killer cell activity in patients with recurrent aphthous ulceration.

目的 初步探讨复发性阿弗他溃疡（recurrent aphthous ulcer，RAU）患者外周血自然杀伤细胞活性与RAU发病的关联性。

Recurrent aphthous ulcer is the most prevalent oral mucosal disease in humans, estimated to affect 20% of the general population.

复发性阿弗他溃疡(recurrent aphthous ulcer，RAU)是最常见的口腔粘膜疾病，患病率高达20％左右，居口腔粘膜病的首位。

ABSTRACT Recurrent spontaneous abortion was named habitual abortion in the past, traditional Chinese names it as habitual abortion, which is one of common cyesis complication.

反复自然流产(Recurrent spontaneous abortion，RSA)既往称习惯性流产，中医学称之为滑胎，是常见的妊娠并发症之一。

Circumfusing recurrent structure,which is one of the basic structure of program designing,introduces the teaching method about recurrent structure from two way,elaborates the method of how to understand the meaning of recurrent structure quickly,summarizes common problems of recurrent structure and gives the corresponding technique of program designing.

针对程序设计语言中三大基本结构之一的循环结构，从两个方面探讨了循环结构的教学，阐述了如何让学生迅速掌握循环结构内涵的方法，归纳出需要用到循环结构编程的常见问题并给出相应的编程思路

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。