نتایج جستجو برای: center of structure

تعداد نتایج: 21240996  

Journal: :نشریه مهندسی عمران و نقشه برداری 0
فرامرز خوشنودیان دانشگاه صنعتی امیرکبیر سید محمد حسین سید شاهکرم فرد دانشگاه صنعتی امیرکبیر

according to development of displacement–performance based design, there are some studies on different structures which most of them are about regular plan structures. in this research has been tried to review the frame steel structures designed based on 2800 standard of iran to achieve the designed structures performance level to find how much function levels it covers in earth quake. to show ...

Journal: :international journal of environmental research 2015
v. v. brygadyrenko

specific features of the structure of the ground litter invertebrate community in forest belt ecosystems in the ukrainian steppe zone have been considered. for 14 years invertebrate fauna of the litter of 176 forest belt sites with different composition has been studied with the aid of soil traps. the main characteristics of litter invertebrate communities (total population, a number of species...

Journal: :iranian rehabilitation journal 0
yasaman etemadi koodakyar st, daneshjou blvd, evin, tehran, iran. amir masoud arabloo koodakyar st, daneshjou blvd, evin, tehran, iran. mahyar salavati koodakyar st, daneshjou blvd, evin, tehran, iran.

objectives: altered movement strategy and postural control has been observed in low back pain (lbp) patients. objective of this study was to determine postural response following support surface translation, also correlations between postural response related measures and disability caused by lbp. methods: 20 healthy subjects and 20 patients with recurrent non specific lbp participated in this ...

The existence of torsion, as well as consideration of the Soil-Structure Interaction (SSI), increase the natural periods of the structure resulting from a subsequent decrease in the seismic demand of the system. This paper summarizes the probabilistic assessment for evaluation of collapse fragility curves in concrete moment resisting structure with different mass center eccentricities. A 12-sto...

Journal: :Journal of Structural and Construction Engineering (Transactions of AIJ) 2001

Journal: :physical chemistry research 0
majid farahmandjou department of physics, varamin pishva branch, islamis azad university, varamin, iran sarvin honarbakhsh saeid behrouzinia

cobalt ferrite (cofe2o4) nanorods were synthesized by iron chloride (fecl3.6h2o) and cobalt sulfate hexahydrate (coso4.7h2o) as precursor in the presence of ethylene glycol agent and poly vinyl pyrrolidone (pvp) surfactant. the samples were characterized to identify the physical properties. xrd pattern of cobalt ferrite samples showed the structure of body center cubic (bcc) structure. the diam...

A. Milany, S. Gholizadeh,

The main purpose of the present work is to investigate the impact of soil-structure interaction on performance-based design optimization of steel moment resisting frame (MRF) structures. To this end, the seismic performance of optimally designed MRFs with rigid supports is compared with that of the optimal designs with a flexible base in the context of performance-based design. Two efficient me...

Journal: :civil engineering infrastructures journal 0
seyed bahram beheshti-aval assisstant professor, civil engineering faculty, k.n.toosi university of technology, tehran, iran. sara keshani m.sc. earthquake engineering, civil engineering faculty, k.n.toosi university of technology, tehran, iran.

torsion of many symmetric structures, which were designed based on the seismic codes, is due to their asymmetricity induced during inelastic behavior. although the structure was designed symmetrically assuming elastic based criteria, different factors such as material inconsistency in structure, construction details discrepancy and construction errors may result in asymmetric behavior in inelas...

2015
Nicole C Walsh Lynnea R Waters Jessica A Fowler Mark Lin Cameron R Cunningham David G Brooks Jerold E Rehg Herbert C Morse Michael A Teitell

I have now heard back from the three referees that assessed your study for EMBO reports. As you will see, although the referees find the study of interest to the field, they also raise various concerns about the conclusiveness of the data, data analysis and presentation. In all, given also that they rate the novelty and general interest of the study as "medium" in the table submitted with their...

Journal: :Current opinion in immunology 2004
Frances T Hakim Francis A Flomerfelt Michael Boyiadzis Ronald E Gress

Immunosenescence, the progressive decline in immune function that develops with age, results from cumulative alterations in critical B- and T-cell subpopulations. Decreases in circulating memory B cells and in germinal center formation are evident in the elderly, possibly due to diminished follicular dendritic-cell function. T-cell dysfunction is associated with reduced thymic generation of naï...

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