太阳跟踪方法研究 太阳跟踪方法研究

这是我查到的一个标准，这是关于物流方面的，希望对您有帮助。-This is what I found in a standard, which is on the logistics, I hope for your help.

gis中三维模型的设计，武汉大学朱庆教授的论文，适合研究GIS三维建模的人。-gis 3D model of the design, Wuhan University Professor Zhu Qing paper suitable for three-dimensional GIS modeling study of people.

5 stvari koje programeri moraju znati

audio applicaton circuit explain

IEC61000 International Standards

一份非常好的职业发展介绍，对嵌入式学习很有帮助，希望对大家有用。很荣幸来到这个网站，发现这是个宝库啊-a very good career development, the right Embedded very helpful, and I hope to you useful. Very honored to come to this site and found that this is a treasure trove ah

Development of DVB-T RF Tuners (cn)

RFC3455中文版，对于学习IMS的人有很大的帮助。-RFC3455 Chinese version of the IMS learning there is a great help.

xps programming ppt document

This paper introduces an affine invariant of trapezia, and the explicit constraint equation between the intrinsic matrix of a camera and the similarity invariants of a trapezium are established using the affine invariant. By this constraint, the inner parameters, motion parameters of the cameras and the similarity invariants of trapezia can be linearly determined using some prior knowledge on the cameras or the trapezia. The proposed algorithms have wide applicability since parallel lines are not rare in many scenes. Experimental results validate the proposed approaches. This work presents a unifying framework based on the parallelism constraint, and the previous methods based on the parallelograms or the parallelepipeds can be integrated into this framework. Key words: invariant parallelism constraint camera calibration 3D reconstruction