为实现中等复杂产品的快速设计,提出了基于UG/WAVE技术的零部件装配体的参数化设计。介绍了使用UG/WAVE技术建模时的方法。以铲斗为例,重点叙述了利用该技术建立装配体参数化的步骤,具有一定的实用性。

因工作，需要将监听到的float类型的数字转换成WAV文件供客户下载，在网上找的源码能生成文件，但是不能播放，所以只能自己花1天时间完成了基本代码，现将代码贴上，供大家交流学习

We propose a spatial diffraction diagnostic method via inserting a millimeter-gap double slit into the collimated terahertz beam to monitor the minute variation of the terahertz beam in strong-field terahertz sources, which is difficult to be resolved in conventional terahertz imaging systems. To verify the method, we intentionally fabricate tiny variations of the terahertz beam through tuning the iris for the infrared pumping beam before the tilted-pulse-front pumping setups. The phenomena can

MFC框架下，通过把WAV格式的音频数据经FFT处理后，将得到的数据进行音频柱状图可视化显示，有需要的朋友可以参考下（编译环境是VS2013、C++）

We numerically study the propagation of 1-ps laser pulse in three tapered holey fibers (THFs). The curvature indices of the concave, linear, and convex tapers are 2.0, 1.0, and 0.5, respectively. The central wavelength, located in the normal dispersion regime, is 800 nm. The nonlinear coefficient of the THFs increases from the initial 0.095 m

这项研究使用模型依赖和模型独立方法评估大鼠肝脏中肝纤维化的等级。 使用四氯化碳（CCl4）诱导37只大鼠肝纤维化; 6只大鼠作为对照。 剪切波速度作为频率的函数，称为速度分散，是通过称为剪切波分散超声振动法（SDUV）的超声弹性成像方法在体外测量的。 对于依赖模型的方法，将速度色散数据拟合到Voigt模型以求解粘弹性模量。 对于与模型无关的方法，通过线性回归分析速度色散数据的模式，以提取斜率和截距特征。 通过两种方法获得的参数分别使用接收器工作特性（ROC）曲线分析进行评估。 结果表明，在区分F0–F1级和F2–F4级纤维化的所有参数中，ROC曲线下面积的截距值最大。 这一发现表明，模型非依赖性方法可以为肝纤维化分期提供模型替代方法的替代方法。

A scheme for the photonic generation of frequency-tunable millimeter wave and terahertz wave signals based on a highly flat optical frequency comb is proposed and demonstrated experimentally. The frequency comb is generated using two cascaded phase modulators (PMs) and an electro-absorption modulato

The critical findings associated with end-face total internal reflection (TIR) phenomemon we proved before are reported. In particular, these findings reveal that the end-face-TIR capable rays experience enormous mode mixing when encountering a roughened end face. As a result, 94% of the overall detectable power is contributed by this effect. With a smooth fiber end face, this figure is mere 52%. We interpret the mechanism behind these unusual phenomena and its significance for the performance e

A novel scheme of photonic aided vector millimeter-wave (mm-wave) signal generation without a digital-to-analog converter (DAC) is proposed. Based on our scheme, a 20 Gb/s 4-ary quadrature amplitude modulation (4-QAM) mm-wave signal is generated without using a DAC. The experiment results demonstrat

The properties of terahertz (THz) radiation pulses emitted by a metallic, large aspect ratio carbon nanotube antenna have been studied both in the THz waveforms and field distribution. The peak THz field up to 2.66 and 1.26 kV/cm are observed at the probe points. The proposed antenna is designed to operate for dual frequency applications from 2.36 to 2.58 THz and from 7.27 to 7.5 THz for less than dB return loss.