Results 71 to 80 of about 353 (208)
Journal of Marine Science and EngineeringThis paper investigates the dynamic performance of web frame structures under the impact of a conical hammer head. Compared with existing research on flat plates and stiffened panels, web frame structures exhibit significant differences in load-bearing ...
Zhengjie Li +5 more
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An Estimation of Error-Free Frequency Response Function from Impact Hammer Testing
JSME International Journal Series C, 2004 The spectrum of impulse response signal from the impact hammer testing is widely used to obtain the frequency response function (FRF). However the FRFs obtained from the impact hammer testing have not only leakage errors but also finite record length errors when the record length for the signal processing is not sufficiently long.
AHN, Se Jin +2 more
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Advanced Science, EarlyView.Schematic diagram showing compressive stress triggers glycolytic reprogramming and lactate accumulation in macrophages. Lactate mediates TRAF6 lactylation at K171/K180 dual sites, which enhances its K63‐linked ubiquitination to activate the NF‑κB pathway and promote M1 polarization. This cascade drives orthodontic tooth movement (OTM) and alveolar bone
Xinyi He +9 more
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Advances in Materials Science and Engineering, 2019 In this study, an ultrahigh drop hammer impact test system was adopted for multiple horizontal impact tests on stainless steel-reinforced concrete columns and ordinary-reinforced concrete columns with the same longitudinal reinforcement diameter.
Bo Wu, Shixiang Xu, Guoxue Zhang
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Advances in Civil Engineering, 2020 In this research study, horizontal impact tests were carried out on five reduced scale pier models using China’s most advanced multifunctional ultrahigh heavy drop hammer impact test system and DHDAS dynamic signal acquisition and analysis system. Due to
Xiwu Zhou +4 more
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Dynamic Characteristics for Traditional Wooden Structure in Korea by Using Impact Hammer Test
Procedia Engineering, 2011 AbstractThis paper presents an investigation on dynamic characteristics of Heunginjimun through both ambient vibration and impact hammer tests. Heunginjimun, treasure No. 1 in Seoul, Korea, is a traditional wooden structure. Ambient vibration test is performed and spectrum analysis of time history is carried out to identify dominant frequency contents ...
Park, S.A., Choi, J.S., Min, K.W.
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Advanced Science, EarlyView.Cross‐disciplinary endeavors are blossoming across the broad chemical sciences. This perspective provides a glimpse into the rewarding interdisciplinary journey taken by the Charles Loh research group in pioneering the σ‐hole based catalytic glycosylation strategy.
Charles C. J. Loh
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Meitan kexue jishuThe surrounding rock of deep roadways in coal mines is prone to large deformation, roof collapse, and other dynamic disasters under the combined action of static and dynamic loads.
Ce JIA +8 more
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Experimental and numerical study on the energy dissipation behavior of carbonyl iron powder/shear-thickening composites under high-energy impact [PDF]
AIP AdvancesShear-thickening materials exhibit rate-dependent mechanical responses. However, their intrinsic physical characteristics and dynamic performance under high-energy impact loading remain insufficiently studied.
Yankai Fu +3 more
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, 2018 Experimental Modal Analysis (EMA) on a lightweight material has proven to be very challenging in the recent past. The applications of these materials have increased invariably in various fields and so have a high demand for Research & Development (R&D). A lightweight material is very sensitive in terms of vibration.
Mallareddy, Tarun Teja +2 more
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