Results 21 to 30 of about 1,615,018 (245)

The Effect of Shear Wall Openings on the Response Reduction Factor

open access: yesCivil Engineering Journal, 2022
This research attempts to investigate the effect of shear wall openings on the response reduction factor. Openings are commonly necessary because of other engineering disciplines’ requirements. When openings are modest in proportion to the size of the wall, their effects are frequently disregarded.
Nasr E. Nasr   +3 more
openaire   +1 more source

Concrete Filled Double Steel Plate Shear Wall Response Modification Factor [PDF]

open access: yesJournal of Structural and Construction Engineering, 2019
Composite steel shear wall is a newest seismic resistant system that has a high stiffness, strength and ductility. The main advantages of this structural system are lower thickness and weight, don’t need to reinforcement and its easy implementation ...
Hamed Rahman Shokrgozar   +2 more
doaj   +1 more source

Shake table investigations on code non-compliant reinforced concrete frames

open access: yesAlexandria Engineering Journal, 2020
Shake-table tests were performed on a code conforming and four non-compliant 1:3 reduced scale two-story RC frames. The models were subjected to 1994 Northridge earthquake acceleration time history, linearly scaled to multiple levels for studying the ...
Muhammad Rizwan   +5 more
doaj   +1 more source

Characteristics of Jerk Response Spectra for Elastic and Inelastic Systems

open access: yesShock and Vibration, 2015
Jerk is the time rate of acceleration and mainly represents the nonstationary component in high frequency band of the earthquake wave. The study on jerk and its response spectra can enhance the recognition of the nonstationary ground motion.
Haoxiang He, Ruifeng Li, Kui Chen
doaj   +1 more source

Investigating effects of boundary conditions on the evaluation of R-factor of un-braced steel frames

open access: yesHBRC Journal, 2017
Design of Structures to resist seismic load depends on the theory of dissipation in elastic of energy that already exists in response modification factor “R-factor”.
Masood M.M. Irheem, Walid A. Attia
doaj   +1 more source

Unity Energy Response Using CaSO4:DY/Teflon

open access: yesARO-The Scientific Journal of Koya University, 2016
This study investigates the possibility of achieving unity energy response using the very sensitive CaSO4:Dy/Teflon thermoluminescent detector at photon energies below 100 keV.
Maan S. Al-Arif
doaj   +1 more source

Psychometric validation techniques applied to the IND-VFQ-33 visual function questionnaire: the Hyderabad ocular morbidity in the elderly study (HOMES)

open access: yesBMC Medical Research Methodology, 2021
Background Over 2 billion people suffer from vision impairment or blindness globally, and access to validated visual measurement tools in imperative in accurately describing and managing the burden of eye disease.
William Mitchell   +7 more
doaj   +1 more source

Promising Photocytotoxicity of Water-Soluble Phtalocyanine against Planktonic and Biofilm Pseudomonas aeruginosa Isolates from Lower Respiratory Tract and Chronic Wounds

open access: yesApplied Sciences, 2022
Alternative methods of killing microbes have been extensively researched in connection with the widespread appearance of antibiotic resistance among pathogenic bacteria.
Wojciech Szczolko   +5 more
doaj   +1 more source

Overstrength and ductility factors of XBF structures with pinned and fixed supports

open access: yesStudia Geotechnica et Mechanica, 2023
In today's time, most seismic design codes are based on a linear elastic force-based approach that includes the nonlinear response (ductility and overstrength) of the structure through a reduction factor (named behavior factor q in Eurocode 8 [EC8 ...
Yahmi Djamal   +3 more
doaj   +1 more source

Sickle Cell Disease Is an Inherent Risk for Asthma in a Sibling Comparison Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Sickle cell disease (SCD) and asthma share a complex relationship. Although estimates vary, asthma prevalence in children with SCD is believed to be comparable to or higher than the general population. Determining whether SCD confers an increased risk for asthma remains challenging due to overlapping symptoms and the ...
Suhei C. Zuleta De Bernardis   +9 more
wiley   +1 more source

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