sensitivity of an electromagnetic type metal detector is directly related to stability, the higher the required sensitivity, the more frequently the rebalancing controls will have to be adjusted. thus, for maximum sensitivity in the head ,the use of automatic drift compensation network is necessary in order to cancel out the signal resulting from a slow drift in the coil system due to the tempe...

The present study sought to explore the impact of story maps and audio podcasts as scaffolds on oral proficiency of Iranian EFL learners. The quasi-experimental study was launched with 36 EFL undergraduates in three groups by adopting a counterbalanced 3  3 Latin squared design. All participants were indiscriminately, but in a specified order, exposed to the three treatment conditions of story ...

minimalist story is a kind of very short story that is summarized sometimes in some lines and sometimes in one page. it tells a short event and in addition includes deep contents.studying verses of holy quran we can see stories in different forms and lengths. meanwhile there are some storiesthat are not more than some lines in lengthso it is possible for the researcher to evaluate these stories...

The effects of wave direction, frequency and the waterline shape of floating structures on the wave mean drift force formula have been considered separately by several authors but there isn't a general formula to take into account all of these effects. In this regard, Faltinsen’s wave drift force formula has been modified by adding finite draft coefficient. The results obtained from this formu...

the main cause of structural damage in buildings subjected to seismic actions is lateral drift. in almost all reinforced concrete (rc) structures, whether designed with walls or frames, it is likely to be the code drift limits that control the design drift. the design drift limits and their contribution to damage may be represented indirectly through the material strain limits. the aim of this ...

Recent investigations have shown that the influences of Soil-Structure Interaction (SSI) may be detrimental to the seismic response of structure, and hence neglecting this phenomenon in analysis and design may lead to an un-conservative design. The objective of this paper is to quantify the effects of nonlinear soil-structure interaction on the seismic response of a low-rise special moment fram...

In recent seismic analyses, it is considered that the structural damping ratio should be treated as independent of frequency, for safety side estimation. Therefore, frequency-insensitive required realistic simulations. This paper investigates performance various sparse matrix models (extended Raleigh, capped viscous and uniform damping) in inelastic analysis a 35-story moment-frame steel buildi...

Mid-story pin column system has been proposed to realize beam yielding mechanism of a steel moment-resisting frame. In this system, connection is applied inbetween the upper and lower RC extended from base control moment demands on both ends first story column. An exposed-type adopted as connected by single anchor bolt. Static cyclic horizontal loading tests partial frame consisting second floo...