“滇”峰之旅 邓禄普GRANDTREAK系列轮胎测试

在风景秀丽的云南,我深刻体验了邓禄普的GRANDTREAK系列PT2、AT3、MT2的3款轮胎不俗的性能,它们的安全舒适和良好越野性让人惬意地享受着云南多彩的风情。     

带你去越野 玛吉斯Bravo AT771

铃木超级维特拉拥有结实的越野身骨,但外表却个性不足。所谓好马配好鞍,当我们把这套玛吉斯Bravo AT771装上之后,俨然就是城市"猛男"了嘛!     

A semi-fragile wavelet transform watermarking scheme for content authentication of images

A novel semi-fragile watermarking scheme for the content authentication of images using wavelet transform (WT) is presented in this paper. It is tolerant to the embedded wavelet image compression methods based on WT such as embedded zerotree wavelet (EZW), set partitioning in hierarchical trees (SPIHT) and embedded block coding with optimized truncation (EBCOT) in JPEG2000 to a pre-determined bit-plane, but is sensitive to all other malicious attacks. The image features are generated from the lowest-frequency (LF) subband of the original image as the embedded watermark. The watermark is embedded into the pre-determined bit-plane by adjusting the corresponding values in the given subband. In the process of watermarking authentication, we compare the image features generated from the LF subband of the received image with the embedded watermarking information (the image features of the original image) extracted from the pre-determined bit-plane in the given subband of the received image to decide whether the image is attacked maliciously or processed acceptably (the embedded wavelet compression). The most important advantage of our watermarking scheme is that the watermark information can be extracted from the watermarked image when detecting watermark, so the received image authentication needs no information about the original image or watermark. Experimental results prove the effectiveness of our proposed watermarking scheme.     

省油到极致 锦湖Ecsta LX ECO KU28轮胎第一月

轮胎可以省油已经不是什么新鲜事儿了,但像锦湖最新推出的KU28这样省到极致,为数不多。     

新闻速递

陕西地铁2号线今年10月实现洞通;上海11号线南段年内开建;南京地铁三号线全线降噪措施需518万元;太原拟建覆盖全市的地铁线路.     

大连新港1号浮附近的流场及对船舶操纵的影响

通过对大连新港1号浮附近潮流变化规律的介绍，阐述了流水对该区域船舶操纵的影响及应对措施，提出了改善相关现状的的建议。     

郑州地铁1号线盾构管片明年2月下线

11月26日，郑州市地铁1号线盾构管片生产线在河南康晕水泥制品有限公司贾峪生产基地举行奠基仪式，预计明年2月出产品。     

平台组块上管线施工方式的探讨

结合目前两种平台管线施工方式,即按管线系统施工与按管道分区块施工方式,分别以加工设计阶段和施工阶段进行比较、讨论;并得出:按管道分区块施工比按管线系统施工具有更多优势,生产过程具有整体性和均衡性,从而达到充分利用空间、缩短工期的目的.     

组织在线

《国际船用燃料油污染损害民事责任公约》11月生效；IMO责令索马里政府打击海盗；CCS获巴哈马授权代行船舶法定检验和审核；GL展开大规模收购；ABS受“威望”号新指控困扰；