模型眼

AbstractAIM: To study the changes of refractive status and axial length in chicken form deprivation myopia and its recovery model, to observe the metamorphism of posterior sclera and to lay foundation for investigation of axial myopia pathogenesisMETHODS: Twenty-five newly incubated chicken were selected. Their left eyes were covered with semi-translucent membrane to deprive form perception for 14 days (form-deprivation group), or covered for 11 days followed by uncovered for 3 days. Unoccluded eyes in either group served as control eyes respectively. Retinoscopy and A- ultrasound were conducted to collect the refraction and axial length data.

目的：研究雏鸡形觉剥夺性近视眼及形觉剥夺性近视眼恢复模型的屈光状态和眼轴长度的变化，并观察后极部巩膜的形态学改变，为探讨轴性近视的发病机制打下基矗方法：选用新孵出的普通肉食家鸡25只，采用半透明薄膜眼罩遮盖的方法对左眼进行形觉剥夺14d或遮盖11d后，去遮盖3d。

In this paper, numerical computations are made on the scattering of ultrasonic pulse waves with different centroid frequencies of 100 kHz,500 kHz and 1 MHz in fluid-filled finite-length perforation by using Finite Element Method,where three kinds of models of perforation bottom, I.E., flat bottom, stepped bottom and acuminated bottom,are assumed to simulate the practical bottoms of perforation.

乔文孝，杜光升。射孔孔眼中散射超声脉冲波的FEM模拟。测井技术，2001，25（2）：96～100 采用有限元素法，分别数值计算了平底孔道、台阶式孔道和尖劈状孔道等3种孔眼模型中不同中心频率(100 kHz、500kHz、1 MHz)的散射超声脉冲波。

So with the smith standing near his anvil, forging crude iron. The heat from the fire sears his flesh, yet he toils away in the furnace heat. The clang of the hammer deafens his ears, His eyes are fixed on the tool he is shaping.

同样，铁匠坐在铁砧近旁，思量怎能把生铁打好；火星喷射在他身上，与灼热的炉火决斗，锤声震动他的耳鼓，他的眼注视着器具模型

Physical models of fragment discharge process are established and the fragment discharge law is discussed by the rational simplification of parallel- cut blasting process in this paper.

通过对直眼掏槽爆破过程的合理简化，建立了排碴过程的物理模型，研究了排碴规律，并通过实例对其合理性进行了验证。

The temperature response of laser induced retina and choroids is analyzed in theory.

为了避免激光经瞳热疗带来的热损伤或治疗不足，建立了眼底层状模型并采用二维有限元法求解生物传热方程，从理论上分析了激光引起的视网膜和脉络膜的温度变化。

David Hambling traces the history of this relationship in the modern era and shows how precision eye surgery emerged out of the military quest for a 'death ray', how transistors and silicon chips first helped build better bombs, and exactly why the 747 has such a distinctive shape.

作者David Hambling追随历史的脚步，以新时代的眼光审视过往的实例，向人们展现精确的眼部外科手术是如何让军人摆脱了&死亡发射线&的纠缠，电晶体和硅片是如何首次帮助人类建造了更具杀伤力的炸弹，和为什么747的模型是如此的特别。

Results: The velocity in Basilar artery, vestibular blood supply and ENG frequency decreased, while viscosity of whole blood in high, middle and low shere increased in VACS models.

结果：模型组的眼震电图频率、椎—基底动脉血流速度和前庭血流量降低，高、中、低切变率全血粘度增高。

Objective:To observe the effect of βestradiol on gluta mate concentration in rabbits′ retinae injured by ischemic reperfusion.

目的：探讨雌激素对视网膜缺血再灌注兔眼模型视网膜组织中游离谷氨酸浓度的影响。

The eyeball movement model presented in this paper was calculated accurately and stably enough to provided an accurate and visual clinic aid for oculists. Therefore more accurate surgery of extraocular muscles can be expected.

本文提供的眼球的运动模型计算精确，稳定可靠，辅以可视化的软件，可以给眼科医生提供较准确且直观的临床指导，从而较大程度地提高眼外肌手术的准确程度。

The coordinated values of production rate and the bottom pressure of three-branched horizontal well in

对裸眼完井方式下三分支水平井自喷采油时的协调产量和协调压力实例模拟计算结果表明，该模型适用于求解应用前

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。