查询词典 delta function

After certifying the irreality of ideal filtering function, we can get a better filter selecting a proper window function. Comparing two actual filters, we designate a good"Panama hat"filtering function. Meanwhile, an effectively linear interpolating function is introduced to raise the image reconstruction quality. Describing its realizing steps on the micro-computer briefly, we reconstructed some images from the anlogue projections of some models. The number of projection views is 180, 100 same interval parallel lines per view; the size of reconstructed images is 64×64 pixels with 64 gray levels; the reconstructing speeds are 40" on PC-386 and 12"on PC-486, respectively; each pixel is 0.31mm.

在证明了理想滤波器的不可实现性之后，得知通过选择适当的窗函数可获得很好的滤波函数，经过两个实际滤波器的效果对比，我们选取了较好的"巴拿马帽"形滤波函数，同时也介绍了一个有效的提高重建质量的线性内插函数，概要地叙述了平行射束图象重建的计算机具体实现步骤后，对几个物体的模拟投影数据进行了重建：投影角为180°，每视角下有100个平行投影数据点，在386微机上重建尺寸为64×64，时间约为40秒；在486/33MHz微机上只用了12秒，图象的象点精度是0.31mm。

(1) The skull slot needling integrated with language training and single language training showed improvement on lingual function and neural function patients with aphasia following the apoplexy, however, the skull slot needling combined with language training group seemed more effective than the single language training group;(2) The skull slot needling treatment can obviously improve the scores in clinical neural function, and prompt the ability of speaking language expressing, accelerate the comeback of audition comprehension, enhance the ability of iterance, quicken the reading speed and improve the veracity of reading;(3)The comeback of lingual function can be benefit for the intercourse between patients and doctor and family numbers, can build up the self-confidence of conquerring diseases, can cooperate with doctors, all these factors can affect morbid curative effect and prognosis.

（1）颅针加语言训练与单纯语言训练对中风失语患者的语言功能听理解、复述、说、阅读、出声读、抄写、描写方面、语言功能提高率和临床神经缺损均有改善作用；而颅针加语言训练组疗效优于单纯语言训练组；（2）颅针加语言训练治疗中风失语患者可改善临床神经功能、提高口语表达能力、促进听理解障碍的恢复、复述能力的提高、使文字阅读速度的加快及准确率的提高；（3）语言功能的恢复有助于患者与家属及医护人员的交流，更能够增强患者治疗疾病的信心，更好地配合医护人员进行治疗，而这些均能够影响到疾病的疗效及预后；（4）颅针与语言训练相结合能优势互补，颅针参与治疗中风失语症有积极意义。

This is where the parameters passed to the function are stored, along with the return address (to which the function must jump once it completes), and the internal storage used by the function (these are the local variables the function stores on the stack).

这是主调函数传入的参数，返回地址的存放位置，并作为函数的内部存储空间使用。

In this paper, the Lagrange interpolation formula asked a class function expression question, the determination function to the higher mathematics in the elementary mathematics in some value scope question, the equality proof question, the multinomial factorisation question, to ask to have the Finite series to pass the formula question, the certificate any n function at will n+1 different spots function value maximum value minimal problem and so on six aspects should serve as the simple introduction, and has separately made the comparison with these six aspects elementary mathematics method, thus solved some operation problems in elementary mathematics.

摘要本文对高等数学中Lagrange插值公式在初等数学中的求一类函数表达式问题、确定函数在某点的取值范围问题、恒等式的证明问题、多项式的因式分解问题、求有穷数列的通项公式问题、证明任一n次函数的随意的n+1个两两不同点的函数值的最大值的最小值问题等六个方面的应用作了简单介绍，并与这六个方面的初等数学方法分别作了比较，从而解决一些初等数学中的运算问题。

In this paper employing periodic function of complex function, a power function and a logarithmic function were constructed to obtain Principle Quantum Number , Angular Quantum Number , Magnetic Quantum Number , Spin Quantum Number and the relations between them.

利用复变函数中周期函数结构，构造了一个幂函数和一个对数函数。给出了电子的主量子数、角量子数、磁量子数和自旋量子数，以及它们之间的关系。

The relationship between water content and suction of coastal soils could be showed by logarithmic function model, power function model, index function model. According to the correlation coefficient, the logarithmic function model was better than another two model.

对海涂土壤而言，其持水模型可表示为对数函数模型、幂函数模型、指数函数模型，这些模型都能很好地反映含水量θ与吸力S的关系，但对数函数模型要优于其它模型。

The thesis first recommends the famous fuzzy Gaussian approximation system which is based on the Gaussian membership function, the fuzzy logic of product reasoning and the fuzzy law of weight approach. This thesis is discusses the general fuzzy Gaussian membership function that can approximate the form of triangular, trapezoid and Gaussian function , and its basic form is .The general fuzzy Gaussian membership function is to be generally used in the field of approximation .

模糊逼近是近年来发展比较迅速的一个新兴方向，论文首先给出了模糊理论中著名的基于高斯隶属函数、乘积推理模糊逻辑和重心解模糊法的模糊高斯型万能逼近定理，在此基础上本文进一步给出了可以用来逼近三角形、梯形和高斯形的广义高斯隶属度函数形式，它的基本形式是。

The experimental result shows:1 acupuncture and moxibustion on DU4 and RN4 can lighten inflammationreact , suppress the inflammation course, DU4 has the best result.2 IL-2 is the important factor of participating the immune respondence.Acupuncture and moxibustion can increase IL-2 content in the blood , thusstrengthen the immune function of the organism .3 acupuncture end moxibustion can raise β-EP content of lower thalamus ,hypophysis , lymph gland. it proves that acupuncture and moxibustion can stimulateand accelerate compound、store 、process 、shifting utility of β-EP content; andstrengthen the immune regulating function of the organism, acupuncture function isstrong rapidly, moxibustion function is slow and gentle, the regulating action powerof moxibustion has close relations with choice of the point . The possible reason isthat y whether acupuncture and moxibustion bring into play their regulating actionthrough different way of neural body fluid.4 The DU4、RN4、FEI point influence rule apply on change of β-EP content ofabove-mentioned organism.

实验结果显示：1 针灸命门和关元穴能减轻炎症反应，抑制炎症过程，命门穴效果最好。2IL-2 是参与免疫应答的重要因子，而针灸能增加血中 IL-2 含量，从而增强机体的免疫功能。3 针刺和艾灸可以升高下丘脑、垂体、淋巴结β-内啡肽含量，说明针灸可以刺激并加速β-内啡肽含量合成、储存加工和转移利用；增强机体的免疫调节功能，针刺作用迅速强烈，艾灸作用缓慢温和，艾灸的调节作用强弱还与穴位的选择有密切关系。

For the joint density function of 2-D continuous random variables, a new function can be obtained by upper limit-variable integral, and then, by normalization of the new function according to the property of density functions, a general marginal density function was constructed.

对二维连续型随机变量的联合密度函数，在一定要求下变上限积分得到新函数，依据密度函数性质进行规范化，从而构造出一个广义的边缘密度函数。

This paper describes the application of a quadratic function, namely : the use of quadratic function for Inequality, discuss other monotone function with the most value, the real roots distribution, series of comprehensive, quadratic function embodied in the high school math widely used.

本文主要介绍二次函数的应用，即：利用二次函数解不等式，讨论其他函数的单调性与最值、实根分布，数列中的应用等综合问题，体现了二次函数在高中数学中的广泛应用。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。