Deletion from open-address hash table is not so easy as deletion from chained hash table, because in open-address table we can’t simply mark a slot containing deleted key as empty. Search for keys may become incorrect. The classical method to implement deletion is to mark slots in hash table by three values: “free”, “busy”, “deleted”. That method is easy to implement, but there are some disadva...

Most goods and services vary in numerous dimensions. Customers choose to acquire information to assess some characteristics and not others. Their choices affect firms’incentives to invest in quality and so lead to indirect externalities in consumers’choices. We illustrate these ideas by characterizing a model in which a monopolist invests in the quality of a product with two characteristics, an...

in this report, experimental investigation of waste water treatment by reverse osmosis to enable its reuse in cooling tower is presented. a polyamide spiral wound ro membrane followed by three filters as ro pretreatment (two activated carbon and one cartridge filter) and samples of tehran refinery treated waste water have been used. the effect of operating conditions such as pressure difference...

Services change over time, be it for internal improvements, be it for external requirements such as new legal regulations. For long running services, it may even be necessary to change a service while instances are actually running and interacting with other services. This problem is referred to as instance migration. We present a novel approach to the behavioral (service protocol) aspects of i...

Computer generated addresses are coming to your neighborhood because most places in the world do not have an assigned meaningful street address. In India, 80% of the addresses are written with respect to a landmark which typically lies between 50-1500 meters of the actual address; such addresses make geolocating very challenging. Accuracy in geolocation is critical for emergency services to nav...

Talented students underachieve for many reasons and in many different circumstances. Unfortunately, there is no panacea for how to reverse underachievement in students whose talents are demonstrated in diverse ways. High-potential students with special needs are likely to experience underachievement as efforts to address their needs may focus more on remediation of difficulties and less on deve...

Structure from motion, the problem of estimating 3D structure from 2D images hereof, is one of the most popular and well studied problems within computer vision. In part because it is academically interesting, but also because it holds a wealth of commercially very interesting prospects, e.g. within entertainment, reverse engineering and architecture. This thesis is a study within this area of ...

Tooth loss is followed by a natural bone resorption process that often leads to defects in the alveolar ridge, making the installation of dental implants unfeasible. Correction of such bone defects, especially loss of height of the ridge or associated loss of thickness, is a great challenge to dental surgeons. The technique of segmental osteotomy accompanied by interpositional bone grafting has...