Introduction: The aim of this study was to evaluate the effect of bridge orientation in casting machine on castability and quality of base metal castings. Methods: Three groups of patterns with different direction and lengths in casting machine were casted and then studied qualitatively and quantitatively using mean and standard deviation in table of frequency. Results: Larger nodules and poros...

background: assessment of prosthetic needs in a special population would aid in planning the oral health service programs. the aim of this study was to assess the dental prosthetic status and prosthetic needs in a sample of green marble mine laborers of udaipur, india.     methods: the study population comprised of 513 green marble mine laborers who were divided into four age groups (15-24, 25-...

In Local Area Networks (LAN) connected together by bridges, flow control and smooth traffic in the network is very important. However, congestion at bridges can cause intensive loss of received frames. In addition, the received frames are thrown away and have to be retransmitted by the source station, which causes more congestion and massive reduction in the overall network throughput. The netw...

The present aim of this study is to investigate the effect of different parameters influencing pounding in highway bridges. Pounding is the result of a collision between two parts of the deck and/or the deck and abutments at the separation distance during the earthquake.  In the present study, the period ratio of the adjacent frames, ground motion spatial variation, and soil-structure interacti...

The AASHTO code of practice for design of bridges shows that the ductility level for foundation is given equal to one. Bridges are classified in three classes. For class of essential and normal bridges a question for not to use ductility level due to the importance of bridges’ costs is become an important item in different countries particularly in Middle east. This paper aimed to study on pe...

introduction: the aim of this study was to evaluate the effect of bridge orientation in casting machine on castability and quality of base metal castings. methods: three groups of patterns with different direction and lengths in casting machine were casted and then studied qualitatively and quantitatively using mean and standard deviation in table of frequency. results: larger nodules and poros...

Bridges built from any material and having any special shape  will eventually show signs of wearing off; therefore, there are several factors in the kind and rate of such wearing off and its expansion such as atmosphere, flood, earthquake, overload, design quality, execution and kind of materials that will all reduce the functionality of the structures. Thus, maintaining processes and repairing...

Purpose – The potential threats of extreme events to highway bridges have received increased attention from government agencies, the engineering and construction communities, and the traveling public. These events include terrorist attacks as well as human-induced and natural hazards such as earthquakes, explosions, fires, floods, and hurricanes. To respond to the potential threats on highway b...

PRESSURE AND TEMPERATURE CONDITIONS S. P. Schwenzer 1 , M. A. Bullock 2 , J. C. Bridges 3 , C. L. Chavez 4 , J. Filiberto 5 , L. J. Hicks 3 , S. P. Kelley 1 , M. A. Miller 6 , J. M. Moore 4 , H. D. Smith 4 , T. D. Swindle 7 , A. H. Treiman 8 – 1 The Open University, Walton Hall, Milton Keynes MK7 6AA, UK; 2 Southwest Research Institute, 1050 Walnut St., Suite 300, Boulder, CO 80302 (bullock@bou...