transportation industry is the most dynamic components of any society. in the twenty-first century, with the growth of technology and the widespread use of the internet and the emergence of e-commerce and e-business interaction and active transportation industry deserves to have a wide range of electronic services to the transportation community to take advantage of the investors of the new and...

health reform is the outcome of dispersed policy initiatives in different sectors, at different levels and across time. policy work which can drive coherent health reform needs to operate across the governance structures as well as the institutions that comprise healthcare systems. building policy capacity to support health reform calls for clarity regarding the nature of such policy work and t...

The construction and operation of buildings structures suggest taking measurements to determine accurate dimensions, shape, mutual location all structural elements. This is one the most popular surveying services. All types outlines (lineal, curvilinear, bevelled) surfaces in both plan elevation are subject dimensioning. Depending on goals that set during measuring activities, measurement activ...

Interaction between a structure under base excitation and heavy non-structural elements that it supports is significant in the seismic analysis and design of the structure. Heavy non-structural elements may slide/rock under base excitation, and this dynamic action affects the seismic behavior of the supporting structure. Hence, in this study, a numerical model was presented to describe the seis...

this paper examines differences in performances of a range of torsionally stiff and flexible single story buildings designed with the provisions of iranian standard 2800. seismic nonlinear dynamic time history behavior of eight building models subjected to seven horizontal bi-directional design spectra compatible ground motions are investigated. these models cover a wide range of very torsional...

Dynamic characteristics of a typical multistory building in Iran have been studied in two different stages of building construction, using ambient vibration tests. Finite element models have also been used to determine these characteristics and to verify test results. The results indicated the agreements and also differences between conventional theoretical models and the behaviour of real stru...

The design of a building can provide the highest thermal comfort in the interior without any mechanical equipment and save energy to a large extent. The roof of a building is an important part for thermal loss. This research studies the thermal performance of 14 conventional roof structures in Tehran city by using designbuilder 4.5. It is found that the polystyrene block performs best compared ...