查询词典 cataract extraction

As feature extraction acts an important role in pattern recognition system, we propose three novel feature extraction methods for HCCR: a、Two structural feature extraction methods, Stroke Cross Counting Features and Peripheral Features are studied. According to the characteristics of Chinese handwriting samples, we extend the SCCF and PF respectively to weighted elastic SCCF and weighted elastic PF. Experiments show that the modified feature extraction approaches are better than original approaches. b、A new statistical feature extraction method——Elastic Meshing Directional Decomposition Feature extraction is proposed. According to the stroke statistical properties of Chinese character, we first decompose a handwritten character pattern into four directional subpatterns. Then a set of elastic meshes are applied to each of the four subpatterns respectively to extract the pixel distribution features.

统计识别方法：利用统计模式识别的经典方法——Bayes分类方法来进行汉字识别的研究，特征提取是统计模式识别的关键，本文着重围绕手写体汉字的特征分析和提取方法进行了研究，提出了三种特征提取的新方法： a、两种改进的结构特征提取方法：在笔划密度特征和外围特征的基础上，结合手写体汉字的特点，提出了加权非均匀笔划密度特征、加权非均匀外围特征的特征提取新方案； b、一种新的统计特征提取方法——弹性网格方向分解特征，根据汉字方块字的特点及笔划分布的统计特征，对手写体汉字进行横竖撇捺四方向的分解，并利用一系列的弹性网格对汉字分解后各分量的象素进行统计而提取特征，实验证明该特征提取方法用来进行手写体汉字识别是十分可行和有效的。

Results Among them,high proportions of patients who were female,older than 70,blind in both eyes or chose much low treatment fee were found.The proportions of patients with satisfy acute vision after small incision non-phacoemulsification cataract extraction or phacoemulsification cataract extraction plus intraocular lens implantation with domestic or imported were the same large.

在白内障住院手术患者中，多见70岁以上者；多见女性；普遍选择费用较低的治疗方案；小切口非超声乳化白内障摘除术或超声乳化白内障摘除术，加国产或进口人工晶体植入术的术后满意视力构成比均最高。

Frog's cataract syndrome is defeats one kind of communicable disease by meningitis which the blood yellow bacillus infects causes, the symptom performance for the ascites (abdomen inflates, largely, serious ascites), tilts the head (neck to face one side crookedly, body loses balance), cataract (eye keratocele, inflammation, inflammation organization's cataract covers eye crystal to create loses one's sight) and so on.

蛙的白内障综合症是由脑膜炎败血黄杆菌感染而引起的一种传染性疾病，症状表现为腹水（腹部膨胀、肥大、严重腹水），歪头（脖子歪斜朝向一侧，身体失去平衡），白内障（眼角膜突出、发炎、炎症组织的白内障盖住眼睛晶体而造成失明）等。

The three genes causing fan-shaped cataract, cerulean cataract and sutural cataract has been identified by a research team led by Prof Jai Rup Singh at the Centre for Genetic Disorders, Guru Nanak Dev University.

三个基因造成扇形白内障，雨蛙肤性白内障及缝白内障已被确定为带领的研究小组，由教授裴家RUP的辛格在该中心，为遗传性疾病，大师诞辰开发大学。

Each medicine used in the study totally has obivious effect on lens sodium-pump. Either on the molecular and cellular level or on the histological and organic level , they all have their distinctive demonstration. 1.Ouabain、Digoxine、DMSO decrease the expression of αsubunit of sodium pump on mRNA level , the cell morphology and ultramicroscopic structure demonstrated destructive effect,it indicates the cause of cataract of the medicines.2.D-thyroxine、Amphotericin B、Vitamin E increase the expression of αsubunit of sodium pump on mRNA level ,from the demonstration of the cell morphology and ultramicroscopic structure ,it indicates the medicines have protective or anti-distructive effect on lens.3.The medicines have isoform-specific action on lens sodium-pump,it indicates exploitting isoform-specific medicine has a promising clinical application.4. Lens sodium-pumps are inhibited probably lead to cataract, so in clinical medication, especially to the cardiovascular doctor, while he is using the sodium-pump inhibitors, he should pay more attention to adjust the dosage and duration of the drug therapy. 5. To creat the animal model of cataract through inhibiting lens sodium-pump, whether it can be a kind of classical method or not, it is worthy of further research.

本研究所选用的药物对晶状体钠泵均有明显的影响作用，在分子水平、细胞水平、组织器官水平均有特异的表现：1、哇巴因、地高辛、二甲基亚砜三种药物可降低晶状体钠泵α亚单位在 mRNA水平的表达，在细胞形态和超微结构上表现为损伤效应，提示了其潜在的导致白内障的可能。2、D甲状腺素、两性霉素B、维生素 E三种药物可升高晶状体钠泵α亚单位在 mRNA水平的表达，从细胞形态和超微结构上的表现，提示了其对晶状体有保护作用或抗损伤效应。3、药物作用于晶状体钠泵具有重整异构特异性，提示了开发出特异的具有重整异构作用的药物是极有临床应用前景的。4晶状体钠泵抑制后可能导致白内障的发生，故临床用药，尤其是心内科医生在使用这些钠泵抑制剂时应注意调整用药剂量及药物疗程。5 通过抑制晶状体钠泵来制作白内障动物模型能否成为一种经典的制作方法，还有待于进一步研究。

Methods The clinical data of 70 after—cataract patients who had undergone ND:YAG laser posterior capsulotomy were analyzed retrospectively. 70 eyes included 35 cases of traumatic cataract and 35 cases of senile cataract.

方法对70例接受Nd：YAG激光后囊膜切开术治疗的后发性白内障患者的临床资料进行回顾性分析。70例患眼中包括35例外伤性白内障患者，35例老年性白内障患者。

Use Erbium: YAG laser for continual circular capsulorhexis is simple, easy, safe and effective, and particularly has obvious advantage on patients with senile mature white cataract, hyper-mature cataract and miotic pupil cataract with posterior synechia, which are difficult for capsulorhexis using manualr technique.

利用Er：YAG激光行连续环形撕囊，简单、易行、安全、有效，尤其是应用于常规手法撕囊困难的白色白内障、过熟期白内障及小瞳孔等病例，具有明显优势；2。

Using Erbium: YAG laser for continual circular capsulorhexis on patients with senile mature white cataract, hyper-mature cataract and miotic pupil cataract with posterior synechia, and compared with manual needle and forceps technique.

第一部分为利用Er：YAG激光对老年性成熟期的白色白内障、过熟期白内障及有虹膜后粘连的小瞳孔老年性白内障患者进行连续环形撕囊，并与使用截囊针或撕囊镊等进行手法撕囊技术作比较。

The best extraction parameters are confirmed. The extraction temperature is 30℃, the extraction time is 20min, the extraction ratio is 4:1, and the extraction solution is alkalescency.

通过实验，确定了理论上最佳的萃取工艺条件：萃取温度30℃、萃取时间20min、萃取比4∶1、保持废水在碱性条件下萃取。

The influence of extraction temperature,extraction pressure,extraction time and the dosage of modifier on the extraction of chlorophyl from peach leaf by supercritical CO2 extraction technology was studied.

研究了萃取温度、萃取压力、萃取时间和夹带剂添加量对超临界CO2萃取桃叶中叶绿素的影响。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。