特征

Due to the breakthrough of stained technology in 1970s, the band-pattern of chromosome provides material visual information for cytogeneticist, then analyses the composition of genome in a cell and measures the features of the equipments for karyotyping.In order to meet the demands of clinical hospital, a chromosome analysis system based on PC is developed.

由于70年代标本染色技术的突破(取代了此前的均匀染色方法，产生了染色体的带型特征)，染色体的带型模式为细胞遗传学家提供了实质性的视觉信息，从而可以进一步分析细胞的基因组的合成以及进行自动核型分类仪器中的特征测量。

Most of the properities we associate with life are properities of the cytoplasm .

生命的大部分特征都就是细胞质的特征。

The intermediate-basic volcanic rocks with SiO2 content less than 57.48 wt% are high in Al2O3(20.22-16.34 wt%) and K2O, enriched in large ion lithophile elements, show obvious Nb, Ta negative anomaly, these are same to the basalts which formed in island arc. The andesite, dacite and rhyolite rocks with SiO2 content between 62.11-75.19 wt%, are similar with the I-type granitic rocks formed in island arc in their geochemistry. It is suggested that the Jueluotage area of East Tianshan was in island arc setting during Late Carboniferous, when the subduction of the ancient Asian Ocean was in progress.

其中w(SiO2)小于57.48%的中基性火山岩具有高w(Al2O3)(16.34%~20.22%)，较富钾，富集大离子亲石元素，具明显的Nb、Ta负异常；w(SiO2)介于62.11%~75.19%之间的安山岩、英安岩和流纹岩岩石化学特征与准铝质的Ⅰ型花岗质岩石相似，其地球化学特征也反映出岛弧花岗岩的特点，表明东天山觉罗塔格地区路白山一带在晚石炭世仍处于古亚洲洋向南俯冲的岛弧环境。

The method discusses Chinese traditional medicine from complexity science angle the essential feature that place of dactylogram a collection of illustrative plates has.

概要： 目的对中药指纹图谱的本质特征进行深入探究。方法从复杂性科学角度论述中药指纹图谱所具有的本质特征。

Some well developed techniques,such as dactylogram image capturing and processing,characteristic abstraction,comparison and matching,are among the most widely applied ones in the biology identification.

生物识别技术中发展最成熟、运用最广泛的指纹技术的应用涉及指纹图像采集、图像处理、特征提取、特征比对与匹配等，其最基础、最重要环节是高质量指纹图像采集。

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。

By utilizing gray consistency and feature consistency algorithms to tracking interactions, and combining the output of the data glove, GBIS achieves robust gesture-based interaction.

GBIS整合了满足色彩一致性和特征一致性的特征点跟踪算法来实现交互动作的捕捉，并配合数据手套的有限状态机输出，实现了实时的沉浸式手势交互。

Some results are gained.(1) There is close relation between the change of south Asia high character index, trough in the westerlies and plum rain date character (the beginning, ending dates and lasting days of plum rain, rainfall and area of rain).

得出：(1)南亚高压特征指数变化和西风槽移动与江苏梅期（入梅、出梅、梅期、梅雨量和落区）特征有密切关系。

The characteristics of sediment dynamics and the continued sediment time are discussed through analysis of various cycles of datum plane.

通过各种级别基准面旋回特征分析，讨论了穆棱组的沉积动力学特征和沉积延续时间。

After excavation, the regularities can be found on landform characteristics and locations. In this paper the unloading phenomenon of Xiaowan is concluded into five types: step type, bend type, debark onion type, plate fracture type and floor heave type. Then the five types are analyzed by the methods of engineering geology and mechanics.

最终得到如下结论：①小湾坝基开挖卸荷现象表现出多样性，并且在地貌特征和发生位置上具有明显的规律性；②结合河谷应力场特征，对小湾坝基开挖卸荷现象进行分析，并相应地提出了剪胀、纵弯曲张裂、错动板裂和上拱张裂等力学模式，合理地解释了小湾坝基开挖产生的卸荷现象；③板裂现象是高应力区发现的一种比较特殊的卸荷现象，它的产生需要比较苛刻的地质和力学条件。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。