In marine environment, the physical and mechanical performances of reinforced concrete members will vary distinctly with time, which reduces the safety of the structures. The main factors influencing the durability of reinforced concrete members include the deterioration of concrete, the reduction of reinforcing bar strength, the decrease of reinforcing bar area, the weakening of the bond stren...

green architecture, or green design, is an approach to building that minimizes harmful effects on human health and the environment. the “green” architect or designer attempts to safeguard air, water, and earth by choosing eco-friendly building materials and construction practices. so, green architecture is building and structure design philosophy that aims at minimal use of non-renewable and/or...

Surface finishes are used to preserve and promote solderability of exposed copper metallization on printed wiring boards. While in the best of worlds, the solder used in assembly should dictate the solder interconnect reliability, surface finishes are known to have an effect. The effect of surface finishes on solder interconnect reliability can be particularly strong under high strain rate load...

the endurance of any type of architecture is contingent upon the study of the characteristics that led to its formation. two general approaches have been adopted to study and analyze the iranian architecture. a number of scholars have taken a historical approach, while others have merely considered a genre- based approach. making use of many historical studies, these scholars have attempted to ...

Title of Document: MODELING RATE DEPENDENT DURABILITY OF LOW-AG SAC INTERCONNECTS FOR AREA ARRAY PACKAGES UNDER TORSION LOADS Vikram Srinivas, Master of Science, 2010 Directed By: Chair Professor, Michael G. Pecht, Department of Mechanical Engineering The thesis discusses modeling rate-dependent durability of solder interconnects under mechanical torsion loading for surface mount area array com...

Mohammad-Karim Pirnia, one of the most prominent scholars of the history of Iranian architecture, has recorded two major achievements: the principles of Iranian architecture and the stylistics of Iranian architecture. In this article we will discuss his suggested principles for Iranian architecture. For this purpose, we will first show how his five principles have evolved and completed th...

Neural networks have recently been widely used to model some of the human activities in many areas of civil engineering applications. In the present paper, artificial neural networks (ANN) for predicting compressive strength of cubes and durability of concrete containing metakaolin with fly ash and silica fume with fly ash are developed at the age of 3, 7, 28, 56 and 90 days. For building these...

due to their widespread availability, sandstones are commonly used as a natural stone for buildings, monuments and sculptures. in thecurrent study, nine sandstone samples from the upper red formation (specified by the letters a, b, c, cg, s, s1, sh, tr and min)were studied from a petrophysical point of view and their durability was evaluated. then, their suitability as building stones wasassess...

Islam is regarded to pay attention to the characteristics of urban life which can be practiced on the urban settings. Not surprisingly, Islam has made a great focus on the form and design of cities and prescribed detailed and elaborate regulations for individual and communal life. Seen from other way round, the penetration of Islam into various regions such as Iran, Europe, and Africa had an un...