Results 151 to 160 of about 15,949 (195)

Application of Refill, Recoil, Rebound (3R) as a Novel Chest Compression Technique in Cardiopulmonary Resuscitation; Report of Two Cases. [PDF]

Arch Acad Emerg Med
Tsoungani G, Nour S.
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Protocol of the exploratory prospective observational PEAK study: PrEcision medicine in the management of cardiovascular surgery associated Acute Kidney Injury (AKI). [PDF]

BMJ Open
Hammer N, Rudloff S, Waskowski J, Pfortmüller C, Pingpoh C, Chaikhouni B, Herzig S, Rheinberger M, Pedersen E, Luder G, Kotelis D, Siepe M, Erdoes G, Schefold J, Huynh-Do U.   +14 more
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Repeated Low-Velocity Impact Properties of Hybrid Woven Composite Laminates. [PDF]

Materials (Basel)
Mutsuddy S, Cai D, Hossain MH, Wang X.
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Research on the optimization efficiency of secondary vibrating screening based on EDEM simulation. [PDF]

Sci Rep
Zhu C, Long H, Peng Z, Wang X, Chen X, Tian Z, Fan H.   +6 more
europepmc   +1 more source

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Applying Support Vector Machines in Rebound Hammer Test

Advanced Materials Research, 2013
There are several nondestructive testing techniques available to test the compressive strength of the concrete and the Rebound Hammer Test is among one of the fast and economical methods. Nevertheless, it is found that the prediction results from Rebound Hammer Test are not satisfying (over 20% mean absolute percentage error).
Yu Ren Wang, Wen Ten Kuo, Shian Shien Lu, Yi Fan Shih, Shih Shian Wei   +4 more
openaire   +1 more source

Testing of SFRC by the Schmidt Rebound Hammer

MRS Proceedings, 1990
AbstractThe rebound number, its relationship to fundamental frequency and correlations with compressive strength and erosion - abrasion resistance are discussed. Nine mix proportions were used. The w/c ratios were varied from 0.30 to 0.65. The volumetric percentage of hooked steel fibres was varied from 0.25 to 2.0 vol.% at the w/c of 0.30; at the ...
Jakob Šušteršič, Milenko Rebić, Stanislav Urbančič   +2 more
openaire   +1 more source

Evaluation of Schmidt Hammer Rebound Hardness Test Holders

Geotechnical Testing Journal, 1984
Abstract An evaluation is made of three different holders for Schmidt hammer tests on rock core in the laboratory, including steel angle, V-notch, and semicircular groove holders. The differences are small, but it is shown that the V-notch holder gives consistently higher rebound hardness values.
KL Gunsallus, FH Kulhawy, TD O'Rourke
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Evaluation of schmidt rebound hammer testing: A critical approach

Bulletin of the International Association of Engineering Geology, 1993
In the present paper, a critical approach to the evaluation of Schmidt hammer testing is attempted. Through a statistical analysis of field measurements on sandstone blocks from the archaeological site of Delphi (Greece), it was shown that there is an inconsistency in the correction method proposed by the manufacturer, in relation to the direction of ...
E. Kolaiti, Z. Papadopoulos
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Testing of concrete by rebound method: Leeb versus Schmidt hammers

Materials and Structures, 2018
Hardness is considered as an important property of concrete; it can be used to estimate compressive strength of concrete in situ. The classic Schmidt rebound hammer is the most popular nondestructive method to measure concrete surface hardness, while the Leeb rebound hammer has been extensively studied in geological and metallographic fields over ...
Konstantin Kovler, Fengzhe Wang, Boris Muravin   +2 more
openaire   +1 more source