∗ This work has been partially funded by TOMI project (ESPRIT #20724) Abstract: This paper describes a method to perform error simulation to estimate the quality of the testbenches used to validate VHDL designs. The method is based in the mutation of VHDL descriptions by an error model. The proposed method allows an automatic execution of the error simulation using a commercial VHDL simulator. ...

1. Dept. of Family Medicine, Faculty of Medicine, Inonu University, Malatya, Turkey 2. Pediatric Dentistry, Ankara Atatürk Research and Training Hospital , Ankara, Turkey 3. Ministry of Health, Ankara, Turkey 4. Family Medicine, Etimesgut Community Health Center, Ankara, Turkey 5. Family Medicine, Çerkeş State Hospital, Çankırı, Turkey 6. Dept. of Neurosurgery, Gazi Yaşargil Research and Traini...

Railway yard is the basic composition unit of railways, therefore, the efficiency and quality of railway yard design have a crucial effect on the construction and operation of railways. Plane design is the basis and core of railway yard design, consequently, it is significant to research plane design of railway yard. In this study, through analysis and summary of the research status as well as ...

Abstract— Wireless Sensor Network is architecture with a variety of potential application. Wireless sensor network have emerged as an important application of the ad-hoc networks paradigm, such as for monitoring physical environment. These sensor networks have limitations of system resources like battery power, communication range and processing capability. There is a crucial link between safet...

Modern metropolitan areas involve large concentrations of economic activity and the transport of millions of people each day between their residence and workplace. However, relatively little is known about the role of these commuting ows in promoting agglomeration forces. We use the revolution in transport technology from the invention of steam railways, newly-constructed spatially-disaggregate...

Open access is sometimes seen as promoting rail competition effectively when infrastructure geography and market demand restricts routings — e.g. in Europe. European railways are passenger-oriented, highly scheduled, poorly standardized, and lines serve specialized functions. Conversely, American railroads are freight-oriented, flexible, and highly standardized. Consequently, optimal forms of o...

Railways are an environmentally friendly means of transport that offer many advantages for sustainable development. However, noise and vibration remain a major reason for objections to new lines or network expansions. Railways will never be silent but, it is nevertheless important to reduce their noise and vibration as much as possible while not adding unnecessary cost or complication to their ...

MATRAS is a newly proposed traffic monitoring and controlling model based on the Multi-Agent System. Indian Railways has a huge, robust and extremely complex network which is the largest in the World. But we are still practicing very traditional approaches in the Indian Railways, which requires frequent human interventions. As a result, any sort of mistake or deliberation could lead us to a fat...

Article discusses the possibility of using technological advances of today in rail freight transport, with an emphasis on automatic identification systems and communications. Due to the need of finding an element that is sufficiently resistant to the rigors of the railways and flexible enough to replace the current system of rail freight was selected application the RFID technology. Purpose of ...

Wheel wear has been a concern in the railway for several decades. Studying the form change of the wheel/rail contacts in particular railways consisting of sharp curves helps to identify the risk of severe or catastrophic wear to minimize maintenance costs in order to be competitive in the transportation business. In this paper, the wheel/rail contact was studied on the particular railways. The ...