One study comparing sole and joint custody showed that neither the type of custody nor the frequency of visitation with the non-custodial parent had an effect on the child's adjustment.
一个将单亲监护权与共同监护权做比较的研究表明，监护权的形式和没有监护权的家长的不定期探访，都不会对孩子的适应产生影响。
Objective To evaluate the diagnostic value of high frequency ultrasound in synovial diseases of the knee joint compared with the results of arthroscopy.
目的通过与关节镜结果检查对照，评价高频超声对膝关节滑膜病变的诊断价值。
Joint time frequency analysis method is a powerful tool for study of this kind of signal.
联合时频分析的方法是研究这类信号的有力工具。
The location of joint surface has a close relation with the natural frequency of the structure.
接合面的位置对结构的固有频率也有较为明显的影响。
The fitting difference is reduced and the precise of quantitative interpretation is improved by means of joint TF inversion with time and frequency window data.
利用时间窗数据和频率窗数据所进行的联合时-频反演，缩小了拟合差，提高了定量解释精度。
This paper describes a novel joint acquisition algorithm of timing and carrier frequency for burst orthogonal frequency division multiplexing (OFDM) transmission system.
提出了一种新的正交频分多路（OFDM）传输系统定时和载波频率捕获联合算法。
Joint time Frequency Analysis (JTFA) describes and determines how the frequencies of non stationary signals change over time. It offers a better understanding of nature of the signal.
时-频联合信号分析法能描述非稳态信号的频率如何随时间而变化，故它能使我们更好地理解信号的本质。
In this paper, the pilot subcarriers on two consecutive OFDM symbols are utilized for joint frequency offset correction and channel estimation.
基于连续OFDM符号上的导频子载波，给出了联合频率偏移纠正和信道估计方法。
The results indicate that it is more accurate to estimate joint frequency by using probability matrixes than frequency matrixes.
结果表明，在计算联合频率中应用风向和风速概率矩阵比应用频率矩阵更准确、可靠。
Joint frequency and phase modulation (JFPM) utilize frequency and phase information to realize higher efficiency in the frequency and power.
联合频率相位调制(JFPM)同时利用频率信息及相位信息，具有较高的频带利用率和功率效率。
A joint blind estimation method based on spectrum overlap for uplink interleaved orthogonal frequency division multiple access carrier frequency offset and timing synchronization is proposed.
提出了一种基于功率谱叠加的交织正交频分多址系统上行链路载波频偏和定时同步联合估计算法。
In this paper, a new cumulants-based method for the joint estimations of frequency and DOA of spatial signal was discussed.
提出了一种基于频域高阶累积量的信号频率和到达角联合估计算法。
Based on joint time and frequency offset estimation, a reliable signal detection scheme is obtained by modulated pilot symbols using an m-sequence.
方案利用时频联合估计来得到可靠的信号检测，并从导频符号估计时间和频率偏移。
Therefore, we can identify the joint sounds according to the energy, frequency, amplitude and occurring time of the vibration on the joint sound sonogram.
根据关节音的声谱图特征，从关节音振动能量、频率、振幅、发生时间等方面对关节音进行鉴别，可能有助于判断颞下颌关节的功能状况。
The marked difference lies in a higher variety of relations and a lower frequency of joint found in the diagrams of compositions by the native speakers studied.
他们的主要区别在于，英美留学生作文的修辞结构图示包含的修辞关系更为丰富，且联合关系出现的频率较小。
Generalized into local frequency from integral frequency, the method of joint time-frequency distribution effectively analyzes the signal based on the variation of frequency with time.
联合时频分布方法把整体频谱推广到局部频率，根据频率随着时间的变化情况，对信号进行有效的分析。
Analysis of harmonic response found out the peak frequency of the joint possible to resonate and the stress and strain under peak frequency.
谐响应分析主要是研究联轴器的幅频响应特性，分析其可能的共振峰值频率以及峰值频率下的应力应变情况。
It is proved that, frequency conversion has excellent accent speed, a brake capability, high efficiency rate, great credit rate factor and joint electricity effect and other merits.
实践证明，变频调速具有优异的调速和起制动性能，以及高功率因素和高效率的节电能力等优点，而被国内外公认为最有发展前途的调速方式。
Objective to investigate the diagnostic value of high-frequency ultrasound on knee joint diseases of rheumatoid arthritis (ra).
目的探讨高频超声在类风湿性关节炎(RA)膝关节病变中的诊断价值。
Based on the analysis of test results, the effect of both the surface topography and loading frequency on the joint closure behavior is discussed.
通过对试验结果的分析，获得加载频率和表面形态对节理闭合变形性质的影响规律。
Methods 312 knee joint in 156 patients with ra were studied with high-frequency ultrasound and color doppler flow imaging.
方法选择156例RA患者312个膝关节行高频超声检查，观察二维声像图和彩色多普勒血流成像特征。
Based on the analysis, a new method to detect carrier frequency of FSK signal named time-domain joint and modern power spectrum estimation is put forward.
对电力远动通道FSK信号进行了时域和频域分析，在此基础上提出了一种新的FSK信号载波频率测量方法—时域拼接结合现代功率谱估计的方法。
This paper USES joint time-frequency analysis (JTFA) for processing transient electromagnetic (TEM) field signals that have diffuse feature in geophysical exploration.
本文将联合时-频分析(JTFA)用于处理地球物理勘探中具有扩散性质的瞬变电磁场信号。
The reason of the Weld Joint Cracking on high frequency welding pipe was investigated by using macroscopic observation, metallographic technology, fracture analysis and EBSD technology.
本文通过使用宏观观察、金相分析、断口分析和电子背散射衍射（EBSD）等分析手段对高频焊管焊后弯管开裂的原因进行了分析。
The joint time-frequency analysis provides more direct and comprehensive knowledge of the transient variation of pulse signals at any time and any point of the transmission line.
联合时频分析可以更直观、更全面地了解脉冲信号在传输线任意时间和任意位置的瞬态变化。
And the effects of parameters such as joint deformation and incident frequency of wave on the intensity variation of EME were investigated.
同时，研究节理的变形和入射波频率对电磁辐射强度的影响。
The transmission rule of the lamb wave in the structure of the flexible joint is discussed, and the ultrasonic pulse echo is analyzed in the time-field and frequency-field.
本文首先分析了板波诱发纵波在柔性接头构件中的传播规律，对原始回波信号进行时域和频域分析。
A reassignment method for nonstationary time-frequency joint analysis is introduced.
介绍了非平稳信号时频联合分析中的重排方法。
Simulation results show that, to achieve the same performance, the number of rf chains can be reduced by more than 37.5% in comparison with joint time - frequency beamforming algorithm.
仿真结果表明，与时频联合波束成形算法相比。相同性能要求下，其需要的射频模块的个数可减少37.5%以上。
Simulation results show that, to achieve the same performance, the number of rf chains can be reduced by more than 37.5% in comparison with joint time - frequency beamforming algorithm.
仿真结果表明，与时频联合波束成形算法相比。相同性能要求下，其需要的射频模块的个数可减少37.5%以上。
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