A novel watermarking technique is proposed to embed a semi-watermark in digital images. Before embedding the watermark, a M-dimensional vector is extracted from the original data. Watermarking is achieved by modifying this vector to another particular vector according to the private keys and the watermark. A dual-key system is used to reduce the chance for the removal of watermark. The watermar...

manufacture of coke, refined petroleum products and nuclear fuel is one of the isic (international standard industrial classification of all economic activities, rev.2) that produced 8.5 percent of industry value-added in iran in 2007. isfahan, tehran, khuzestan, hormozgan, and markazi provinces accounted for 90 percent of the value added in this sector. to determine competitive advantage in th...

resources’ scarcity, especially in developing countries, has caused allocation essentially among competing activities to create value. the importance of resource allocation would be more understood if we pay attention to growing complexity in societies and economic development problems they face. in the context of the national economic development literature, the notion of “key or critical sect...

Resources’ scarcity, especially in developing countries, has caused allocation essentially among competing activities to create value. The importance of resource allocation would be more understood if we pay attention to growing complexity in societies and economic development problems they face. In the context of the national economic development literature, the notion of “Key or Critical Sect...

the health sector, a foremost service sector in nigeria, faces a number of challenges; primarily, the persistent under-funding of the health sector by the nigerian government as evidence reveals low allocations to the health sector and poor health system performance which are reflected in key health indices of the country.notwithstanding, there is evidence that the private sector could be a key...