The recent emergence of RFID tags capable of performing public key operations has enabled a number of new applications in commerce (e.g., RFIDenabled credit cards) and security (e.g., ePassports and access-control badges). While the use of public key cryptography in RFID tags mitigates many difficult security issues, certain important usability-related issues remain, particularly when RFID tags...

Mobile phones interactions are mostly done via the buttons, thumbwheels or touchscreens. Thus, in this s paper we present an approach for enhancing Human-Computer Interaction (HCI) on camera-equipped mobile phones. By using this approach a user is able to interact with an application by moving the mobile phone. The built-in camera is used to capture frame sequences while the movement and rotati...

Direct syntheses of acetylated poly-mannosides can be achieved in one-step starting from a fully acetylated thioglycoside mannosyl donor using a polymerization-type strategy under the correct conditions. Under conditions that allow polymer growth from non-reducing to reducing end (N→R), different acceptor alcohols can be used as the 'terminating acceptors' to install different linkers at the re...

Dendronized polystyrene having peripheral bromo groups was prepared from the dendronization of unfunctionalized polystyrene with dendritic diarylcarbenium ions bearing peripheral bromo groups using the "cation pool" method. The palladium-catalyzed amination of the peripheral bromo groups with diarylamine gave dendronized polystyrene equipped with peripheral triarylamines, which exhibited two se...

In some last decades, increasing air pollution and its consequences captivate attention of researchers from all over the world. Scientists have developed some alternate fuels to eliminate the exhaust pollutants. In this paper, idea of using compressed air as a power source in natural gas engines is presented and discussed to explore the concept of new energy vehicles. However, energy densityof ...

In recent years, it is considerably attempted to develop the concept of energy dissipation as an applicable technology to overcome the energy released by earthquakes. The passive control systems such as metallic dampers have been widely considered. The dampers are basically used to mitigate the structural responses and reduce the damages in main structural elements by energy dissipation. ...