天高任鸟飞海阔凭鱼跃——电仪公司项目管理人员复合型人才培养

中国石化集团第二建设公司电气仪表工程公司是一家专业化的施工队伍,经过10年的成长,已经成为国内最具实力的专业化施工队伍。目前该公司在只有300多职员的情况下,每年完成施工产值2亿元、施工净产值近1亿元,特别是07年预计将完成1.2亿元施工净产值,创该公司历史记录。所有这些成绩的取得,与电仪公司这个团结和谐、积极进取、业务精湛、年轻有为的团队分不开,     

High-capacity data hiding in halftone images using minimal-error bit searching and least-mean square filter.

In this paper, a high-capacity data hiding is proposed for embedding a large amount of information into halftone images. The embedded watermark can be distributed into several error-diffused images with the proposed minimal-error bit-searching technique (MEBS). The method can also be generalized to self-decoding mode with dot diffusion or color halftone images. From the experiments, the embedded capacity from 33% up to 50% and good quality results are achieved. Furthermore, the proposed MEBS method is also extended for robust watermarking against the degradation from printing-and-scanning and several kinds of distortions. Finally, a least-mean square-based halftoning is developed to produce an edge-enhanced halftone image, and the technique also cooperates with MEBS for all the applications described above, including high-capacity data hiding with secret sharing or self-decoding mode, as well as robust watermarking. The results prove much sharper than the error diffusion or dot diffusion methods.     

Superhigh differential quantum efficiency and strong self-sustained pulsation in CW DH laser diodes

Some experimental results in GaAs DH lasers having a stable, long operating-time, such as nonlinear superhigh differential quantum efficiency, the behavior of light output saturation and sudden growth again in the same filament, strong self-sustained pulsation, and so on, are presented. A model of double filaments caused by the non-uniform distribution of aluminum in the active layer of the laser diode is presented to explain their anomalous behavior qualitatively.     

A New Model-Based Digital Halftoning and Data Hiding Designed With LMS Optimization

This work employs the well known least-mean-square (LMS) method to design an adaptive filter to produce high-quality halftone images. The filter can be regarded as a transformation medium between original gray level images and corresponding halftone images. Experimental results indicate that the proposed LMS-designed halftoning offers the extra benefit of edge enhancement. Since a halftone image is typically used in printing, a modified printer model, which can coordinate with the proposed LMS-designed halftoning, is proposed to eliminate the harm caused by the dot-gain effect in printing. Moreover, two data hiding applications, the direct embedding LMS-designed halftone technique (DELDH) and the information sharing LMS-designed halftone technique (ISLDH), are proposed to demonstrate the performance of the proposed LMS-designed halftoning. The experimental results show that, both techniques can be used with the proposed modified printer model to achieve excellent image quality and decoded visual patterns     

License Plate Localization and Character Segmentation With Feedback Self-Learning and Hybrid Binarization Techniques

License plate localization (LPL) and character segmentation (CS) play key roles in the license plate (LP) recognition system. In this paper, we dedicate ourselves to these two issues. In LPL, histogram equalization is employed to solve the low-contrast and dynamic-range problems; the texture properties, e.g., aspect ratio, and color similarity are used to locate the LP; and the Hough transform is adopted to correct the rotation problem. In CS, the hybrid binarization technique is proposed to effectively segment the characters in the dirt LP. The feedback self-learning procedure is also employed to adjust the parameters in the system. As documented in the experiments, good localization and segmentation results are achieved with the proposed algorithms.     

Fracture toughness behaviour in AISI 4130 steel of electron beam welding

This investigation was undertaken to evaluate if fracture toughness and weld porosity could be improved to satisfied characteristics using various welding speeds and electron beam oscillation patterns. Porosity increases in general as welding speed increases. Correlations have been found between fracture toughness and weld porosity. The fracture toughness improved with reducing a large amount of weld porosity, due to proper beam deflection patterns. One of the interesting results indicated that the existence of a little base porosity could absorb more energy due to local plastic deformation and this fact could explain the increasing of fracture toughness at those situations.     

饮酒对热能平衡、食物利用率和肝损伤的影响

<正>酒精饮料的营养成分简单,除啤酒、葡萄酒含有极微量的维生素、无机盐和蛋白质外,主要成分是乙醇,可供给热能。本文旨在进一步探讨酒精饮料的营养意义,研究饮酒对食物摄取量、热能平衡和食物利用率的影响。同时观察长期饮用酒精度低的酒对肝的作用。     

Driver drowsiness detection using hybrid convolutional neural network and long short-term memory

Multimedia Tools and Applications - Drowsiness and fatigue of the drivers are amongst the significant causes of the car accidents. Every year the number of deaths and fatalities are tremendously...