Sharif Digital Repository

The advent of digital age with the Internet revolution has made it extremely convenient for users to access, create, process, copy, or exchange multimedia data. This has created an urgent need for protecting intellectual property in both the digital and the print media. Digital watermarking is a suitable way to do this. In this technology, some hidden information called watermark are embedded into host signal and extracted to confirm copyright protection. However, the watermark should be embedded in the host in such a way that the attacks could not destroy it. Print and scan is a popular attack that is applied on digital images. This attack has complex nature and can be implemented easily.... 

In many cases even high-quality products cannot satisfy the customer needs and this leads to having a lower share of the market. To achieve this purpose, customer satisfaction and robust design are regarded simultaneously to achieve a better quality. Balance Score Card (BSC) is proposed as a technique that could potentially has a great improvement effect on customer satisfaction. Moreover, with a non-linear programming (NLP), a novel method for integrating RSM and BSC have been proposed to accede robustness in design. The opinions of the customers are regarded in every system design, parameter design and tolerance design. To validate the applicability of the proposed approach, the approach... 

The construction industry is viewed as one with poor performance from the point of view of quality as compared to other industries such as service and manufacturing. Earlier field studies performed in Iran show low construction quality. Experts suggest that cultural factors are among the most important factors that lead to the difference between what is planned and what is constructed.
Unlike many other industries, the construction industry is yet to achieve wide-scale automation of processes. Therefore, majority of construction processes is heavily dependent on workers. In order to achieve higher performance in terms of quality and productivity, the practitioners and researchers should... 

Queue is crucial in new atmosphere of business. Firms and people see the dark side of this phenomenon. Investigation on The other side of queue is our main purpose of this study. Examining the relationship between queue and Perceived Quality, Price, Sacrifice, Value, and willingness to buy that make our conceptual framework and hypotheses is our primary objective.Questionnaire designed for evaluating construct. For each construct, standard scale was used. A survey was conducted in Iranian universities. The final sample includes 295 respondents. Regression analyses were performed.Results show significant relationship between our construct that confirm the other side of queue. Results show... 

The research has tried to identify obstacles before and during project implementation within the supply chain in electronic markets, using fuzzy model complex relationships among the obstacles to be checked in order to determine the degree of importance of each of these methods actually weights of each of these obstacles will it was, visibility and better understanding of the existing situation to be considered and implemented solutions to overcome them. In this study, the identification of appropriate criteria for supplier selection in electronic markets and prioritizing them are addressed. After filling the questionnaire by staff in the process of the results and obtain a final decision of... 

Market heterogeneity is an essential element in the strategic decision making of firms. Today, differences in urban structures, product varieties, and information availability have created new heterogeneities that deviate from the ones in the classic literature of marketing and industrial organization. Thus a new perspective is needed for analyzing the firms' decisions in these markets. In this thesis, we study the effect of heterogeneous markets on the pricing, location, quality, and product line introduction strategy of a firm to find the optimal reaction of a firm entering these markets. In this regard, we first assume that consumers are not only located at different places in the market...