速度扫描
- 网络Speed scanning;speed sweep;laser scanning
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在设计速度扫描间隔△v时,要力求符合扫描精度标准。
The designed velocity scan interval Δν must be made to accord with scan accuracy standard .
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CFP层速度扫描建模方法
Interval velocity scan for model building using CFP technology
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介绍了利用克希霍夫叠前深度偏移进行CRP速度扫描求取γ道集的快速方法。
This paper introduces a high efficient algorithm for γ gathers computing by means of Kirchhoff prestack depth migration to do CRP velocity scan .
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精确的无迭代分析方法在速度扫描过程中,根据转换波层位时间、纵波速度和横波速度,动态地抽取相应层位的CCP道集和计算速度分析检测因子,来实现精确无迭代转换波速度分析。
This paper advances an accurate non-iterative method which extracts CCP gather according to changing vertically travelling time of converted wave , P wave velocity and S wave velocity in the process of velocity analysis , and calculates measurement coefficients to identify events and velocity .
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速度扫描法共聚焦点道集偏移速度分析
Migration Velocity Analysis of Common Focus Point Gathers Based on Velocity Scanning
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双参数速度扫描方法研究
Method for High Resolution Velocity Scanning with Two Parameters
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在干扰识别方面,采用速度扫描动校正方法来实现;
The disturbing identifying is realized by dynamic correction ;
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在进行三维偏移时通过多次偏移速度扫描,建立了比较精确的偏移速度场。
The velocity scanning has been carried out many times in 3 D migration to build more precious migration velocity fields .
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利用分区域、变速度扫描等方法对传统的二次曝光法进行了改进,提出了改进的二次曝光法。
Moreover , the traditional method has been improved by subdividing scanning with various speeds and an improved double exposal method is proposed .
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实验证明:该系统在以6mm/s的速度扫描测量时,测量重复性精度可达到5μm。
The experiments demonstrated that the measurement uncertainty of the system is 5 μ m while the system moves with velocity of 6mm / s.
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通过速度扫描,在波场延拓后的深度域共中心点道集和经分选后的共成像点道集上,分析速度变化对成像点道集的影响。
The influences of velocity variance on imaging point gathers are analyzed by velocity scanning in CMP gathers and sorted common receiver gathers in depth after wave field continuation .
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运用APDL语言控制热源的热流密度、移动速度以及扫描轨迹;
APDL ( ANSYS Parameter Design Language ) was used to control the density of thermal flow , velocity and path of scanning .
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扫描速度对扫描声强法测量声功率精度的影响
Influence of scanning speed on sound power measurement precision in sound intensity scanning method
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核心稳定将会设置扫描速度和扫描距离的惩罚。
Warp core stabilizers now suffer a penalty to scan resolution and maximum targeting range .
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暗化程度和折射率改变随激光强度、扫描速度、扫描行间距变化而变化。
Darkening and refractive index change varied with laser intensity , scan speed and line interval .
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本文主要研究分析了刻蚀产生的线宽与激光功率、加工速度、扫描次数、显微物镜数值孔径之间的关系。
The relation between ablated feature size of thin films and femtosecond laser parameters is discussed in details .
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给出了末敏弹扫描角速度、扫描角和扫描曲线随时间的变化,以及扫描覆盖区随高度的变化。
The variations of scanning angular velocity , scanning angle , scanning locus and scanning cover field are shown .
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这些氧化还原峰形和峰的个数受电解液浓度、扫描速度、扫描电位区间以及阳极极化时间的影响。
These peaks were effected by the concentrations of electrolyte , the scan rates , scan potential regions and the time of anodic polarization .
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研究了工作电流密度、阴极移动速度、扫描次数、电解液流速等工艺参量对加工质量及效率的影响,获得了较优的工艺参数;
Parameters of the process , such as working current density , moving speed of cathode , scanning times of cathode , flowrate of electrolyte etc.
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本文从网络蠕虫的传播模型入手,分析影响蠕虫传播速度的扫描速率与蠕虫感染能力之间的关系。
This paper starts with the spread model of network worm , then analyses the relation between scanning speed and worm infect ability which affects worm spread speed .
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通过对聚苯乙烯粉末在全熔融状态下选区激光烧结,研究激光烧结工艺参数(激光功率、扫描速度、扫描间距、铺粉厚度)和等能量密度对烧结件的成型精度的影响规律。
The effect rules of the sintering parameters ( laser power , scanning speed , scanning interval , and thickness of a single layer ), and equal energy density on the precision of sintering parts were studied during selective laser sintering of polystyrene powder in the fused condition .
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目的:应用螺旋CT肝脏动态扫描评价造影剂容量、注射速度、延迟扫描时间、病人体重与肝脏增强的定量关系。
Purpose : To evaluate quantitatively hepatic enhancement relating to contrast volume , rate of injection , delayed time and patient weight with dynamic Helical CT of liver .
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在3D-CT技术的实际应用中还存在很多问题,其中运算速度较慢和扫描动态范围较小均是阻碍其发展的瓶颈问题。
In the practical application of 3D-CT technology , slow speed and small scan dynamic area are two key problem that baffle the development of 3D-CT technology .
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注射速度和延迟扫描时间不同,肝脏增强的各参数值亦不同。平衡期出现的时间与注射方式、注射速度和延迟扫描时间有关。
Each parameter of hepatic enhancement was also different in different injection rate and delay times .
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该产品具有每秒1800次的测量速度,光束扫描速度为每秒176米,测量不确定度不大于±3微米。
Our laser scan micrometer measure 1,800 time per second . The speed of scanning beam is 176m / s. The accuracy is ± 3 micros .
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处理速度快,扫描、处理与存储速度每页小于15秒,操作简单。
The management rate is fast , and the scanning , as well as the management and storage rate is less than 15 sec . per page . The operation is simple .
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由于探地雷达检测具有无损、检测速度快、扫描面积大、效率高等优点,故作者尝试用探地雷达对混凝土的密实度进行检测。
As ground penetrating radar test is a non-destructive test and it can survey a large area in a short time , we try to apply it to test the compactness of concrete .
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更可怕的是,腹部扫描增长的速度比头部扫描增长的速度更快。然而,腹部扫描让孩子们受到的辐射比做头部扫描多七倍!
Even scarier is that abdominal scans grew at a higher rate than head scans & though CTs of the abdomen expose kids to seven times more radiation than scans of the head .
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得出了扫描镜运动不影响卫星姿态稳定性、扫描角速度不影响扫描精度和卫星初始姿态角对扫描精度影响很小等结论。
Several conclusions such as the motions of scan mirror does not influence the stability of satellite / scan mirror dynamics system , scanning deviation is irrelative to the scanning speed were obtained in this thesis .
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材料与方法对46例脑瘤患者进行固定层面、时间、速度、剂量增强扫描,然后用CT功能软件时间密度曲线进行后处理并分析。
Materials and Methods Enhanced CT scanning , with fixed slice , time , contrast velocity and dose , was performed in 46 cases with brain tumors .