产生
- 与 产生 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
based on the introduction of the merit and shortcoming and the analysis of the generate methods of the main random sequences,we propose a new method which is based on the substitution and recurrence structure,and the method is implemented by fpga.the generated sequences by this method not only can pass the test of the fips 140-2 standard,but also have high performance:long period,high linear complexity,good correlation function value and high generation speed,it can be used widely in information security system and so on.
摘 要:在介绍了现有随机序列的优缺点以及分析随机序列主要产生方法的基础上,提出了一种基于循环替换原理的伪随机序列产生方法,并用fpga加以实现。该方法产生的伪随机序列完全符合fips140-2标准,并具有周期长、线性复杂度高、相关性好以及产生时间短的特性,能广泛应用于信息安全等系统中。
-
As for the industries that are influenced by spillover effect, hi-tech industry is the focal industry where there is positive spillover effect; knowledge intensive services is the potential industry that produces and take advantage of spillovers from U.S. FDI in China; however, the lack of spillover effects to domestic firms appears in such industries where there are too many monopoly enterprises.
从产生外溢效应的行业来看,高科技行业是产生外溢效应的重点行业;知识密集型服务业是产生外溢效应的潜力产业;而垄断型企业较多的行业阻碍了外溢效应的产生。
-
The above multiple changes will produce 2 kinds of waves, Matter waves and mechanical waves that spread at the same time. Because the electromagnetic wave is a matter wave, it is the medium. Since the multiple exchanges of the electrons state can be regarded as electrical vibration, and the vibrated electrons have magnetic fields and electrical fields at the same time, the electromagnetic wave will be produced. Then, because the electron itself is a matter micro particle, it can produce mechanical waves which can propagate outside with electrical magnetic waves.
这种状态改变的多次往复,就会产生两种波,一种物质波,即电磁波;一种机械波,并且这种机械波是以同次产生的电磁波为媒质进行传播的,,这是因为本种状态的多次往复,可以看作是一种电子振动,振动的电子同时具有磁场和电场,所以能够产生电磁波,又因为电子本身是一个物质微粒所以他能够产生机械波,并且是横波,并随电磁波进行向外传播。
-
We expect it will benefit the industry field to break through the optical measuring limits at present by offering some new ideas. Optical measuring research based on moire interferometry has developed for several decades. The main idea of this research is to utilize the moire effect caused by two superimposed gratings of identical or similar spatial frequency. One is the reference grating and it is a virtual grating created by a computer program in this research; The other grating is the image of grating projected on the measured surface by the DLP projector, and this grating will distort because of the different sloped profile of the surface. To superimpose the program-created grating and the captured distorted grating will derive the so-called moire effect. This research combined the basic theory of optical interferometry and moire effect to project the different phases of the projected grating fringes by the phase-shifting method and compute the principal value of arguments between -π,π. In the end, the phase unwrapping program based on discrete Fourier transform of solving PDEs is used to unwrap the phase of the measured surface, and finally the surface profile is derived by the optical measuring system.
以叠纹干涉术为基础的光学检测研究之发展早已行之有年,而在本研究中所采用的投影叠纹法(Projection moiré)之主要精神在於藉由两道空间频率相近或相同的光栅相互叠加而成的效应,其中一道为参考光栅,而本研究中的参考光栅是以程式产生可调整不同空间频率的虚拟光栅;另一道则为投影至待测物表面的光栅影像,而在起伏高度不一的待测表面上的光栅影像会受到待测物表面起伏状况不同而在观测方向产生光栅投影条纹影像的歪曲变形,将电脑产生的参考光栅与由影像撷取装置所获取投影於待测物表面的光栅影像作叠合,便会产生所谓的叠纹效应;利用基本的光学干涉理论与叠纹效应结合,本研究中以相移法来改变投影於待测表面的光栅相位,再以相移法的理论反运算出在带有待测面各点高度资讯之介於-π,π相位主幅角,再以离散傅立叶转换解偏微分方程的相位重建程式还原待测面的相位值,以得知待测面之表面轮廓。
-
It is better to use a neutron or proton rich projectile with atomic number notfar away from the expected exotic nuclei because the difference in the fragmentationcross section induced by neutron or proton rich and stable projectiles becomes smallwith the increase of the distance between the produced fragment and the projectile. Measurements of 〓 for 〓,〓 and 〓 at intermediate energieshave been performed on the Radioactive Ion Beam Line in Lanzhou.
所选的丰中子或丰质子炮弹最好离所需产生的丰中子或丰质子奇异核比较近,因为随着炮弹与产生的核的距离的增加,丰中子或丰质子炮弹与稳定的炮弹的碎裂反应产生奇异核的产生截面的差别变小。
-
No xylanase activity was found when the culture was carried out without xylan in the medium or with the saccharose as the only carbon source in the medium. Xylose inhibited the xylanase production.
发酵培养基中不含木聚糖时,米曲霉RIB128不产生木聚糖酶,蔗糖为底物时也不产生木聚糖酶,葡萄糖可以诱导产生少量木聚糖酶,木糖则抑制木聚糖酶的产生。
-
A DPC ( 300 ) includes: a frequency source ( 310 ) for generating a clock signal; a delay line ( 320 ) for receiving the clock signal and generating phase-shifted clock signals at output taps; a digital control device ( 330 ) for generating a control signal; and a windowing and selection circuit for generating the output signal, that includes sequential logic devices ( 500, 510, 520 ) and a combining network.
DPC(300)包括:频率源(310),用于产生时钟信号;延迟线(320),用于接收时钟信号并在输出抽头产生相移时钟信号;数字控制器件(330),用于产生控制信号;以及开窗口与选择电路,用于产生输出信号,包括:时序逻辑器件(500、510、520)和组合网络。
-
BSpatial characterization of laser induced Cu plasma in air with different laser focusing distancesThe plasma spectra induced by pulsed laser ablation of copper target are measured. By adjusting the distance of the len-sample, the spectrum of air spark plasma、 Cu plasma and the reciprocity of both plasmas are analysed. From the result, it has been shown that the focusing of the laser beam has an important infunence to analyse the properties of the sample.
b 不同的激光焦点位置产生的等离子体光谱的空间特性研究激光烧蚀置于空气中的Cu靶产生等离子体,通过调节透镜与Cu靶的距离,本文观测了激光烧蚀空气产生的空气火花等离子体、激光直接烧蚀铜靶产生Cu等离子体以及空气火花等离子体与Cu等离子体相互作用等不同情况下的激光诱导击穿发射光谱,激光束焦点的位置在分析材料性质的过程中有着重要的影响。
-
These results prove that iron ion or 4s conduction electron can produce new square atom loop 4L, magnetic moment of iron ion can be made by magnetic moment 2P(subscript m0k) of 2 4sEE in 4L loop, Curie temperature T is proportionate to quantized energy of 4sEE, HMCE can produce contrarotation or reverse self-rotation energy U(subscript 0K) and U(subscript 0K) can produce great thermoelecal potential.
这些结果证明铁离子或4s传导电子产生了新的正方形原子轨道4L,2个4sEE在4L轨道上产生的磁矩2P(下标 m0K)构成铁离子的磁矩,居里温度T与4sEE的量子化能量成比例,基金属传导电子产生了反向旋转或反向自旋能量U(下标 0K),U(下标 0K)使合金产生大的热电势等反常物理量。
-
In one frozen cadaver, Asymmetric transillumination was seen; the left side showed two glows, the right side three glows with additional one off the midline at the cricoid cartilage level.
只有一位大体老师产生两侧透照形态不对称的情形,在左侧梨状窦产生两处亮光,在右侧梨状窦产生三处亮光,多一处的亮光位於侧颈部环状软骨的高度。将灯杖置入食道中。两位大体老师,在颈部前区产生透照。
- 推荐网络例句
-
Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).
呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。
-
The cost of moving grain food products was unchanged from May, but year over year are up 8%.
粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。
-
However, to get a true quote, you will need to provide detailed personal and financial information.
然而,要让一个真正的引用,你需要提供详细的个人和财务信息。