Results 11 to 20 of about 848,441 (265)
Energy Science & Engineering, 2020 We report laboratory experiments to investigate the dynamic failure characteristics of outburst‐prone coal using a split Hopkinson pressure bar (SHPB). For comparison, two groups of experiments are completed on contrasting coals—the first outburst‐prone ...
Chaojun Fan +4 more
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HIV incidence increasing in MSM in Germany: factors influencing infection dynamics
Eurosurveillance, 2006 After an initial peak in the mid-1980s, HIV incidence in men who have sex with men (MSM) declined in most western industrialised countries and then levelled off during the 1990s. Since the late 1990s, increasing numbers of newly diagnosed HIV infections in MSM have been observed in the majority of countries with large and visible MSM communities. Based
U, Marcus +3 more
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A study of the dynamic seismic performance index of building in Indonesia
Journal of Asian Architecture and Building Engineering, 2022 Recent earthquakes have exposed the vulnerability of buildings in Indonesia. An evaluation is needed to confirm the seismic performance of the structures. A seismic index is a method to determine building performance.
Alex Kurniawandy, Shoji Nakazawa
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Dynamic behaviors of water-saturated and frozen sandstone subjected to freeze-thaw cycles
Journal of Rock Mechanics and Geotechnical Engineering, 2023 In high-altitude cold areas, freeze-thaw (F-T) cycles induced by day-night and seasonal temperature changes cause numerous rock mass slope engineering disasters.
Feng Gao +4 more
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Strain Rates in Prestressed Concrete Sleepers and Effects on Cracking Loads
Electronic Journal of Structural Engineering, 2017 Prestressed concrete sleepers (PCSs) play an essential role in structural response and performance of ballasted railway tracks. Due to defects in track or train components, high magnitude dynamic loads may generate at the rail head and transfer to the ...
Javad Taherinezhad +3 more
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Dynamic Fracture Experiment of Medium with Defects under Impact Loading
Shock and Vibration, 2021 Defects have a significant effect on the dynamic fracture characteristics of the medium. In this paper, the dynamic fracture experiment of specimens with bias precracks is designed by utilizing the digital laser dynamic caustics system, and the effect of
Chenglong Xiao +6 more
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Dynamic increase factor in reinforced concrete frames under disproportionate collapse [PDF]
, 2021 Under a disproportionate collapse, the sudden loss of a support causes a dynamic response that can amplify the internal forces in the surrounding members and lead to significant global damage. This study considered a two-dimensional, quarter scale, two bay, two story reinforced concrete frame with discontinuous reinforcement.
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Advances in Materials Science and Engineering, 2022 Existing studies have proved that the incorporation of polypropylene fiber can effectively improve the impact resistance of concrete. In this paper, the split Hopkinson pressure bar and digital pulse shaping technology are used to further study the ...
Jingshuo Zhao +4 more
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Lubricants, 2023 During the operation of the guide rail pair, the accuracy of the guide rail pair is decreased by friction and wear, and the overall performance of the machine tool is directly affected. The influence of surface micro-features of the slider raceway on the
Mingxia Kang, Dezheng Hua, Xiaoqiang Guo
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Reviving B-Factors: Activating ALK Mutations Increase Protein Dynamics of the Unphosphorylated Kinase [PDF]
ACS Medicinal Chemistry Letters, 2018 Anaplastic lymphoma kinase (ALK) is a receptor tyrosine kinase that can become oncogenic by activating mutations or overexpression. Full kinetic characterization of both phosphorylated and nonphosphorylated wildtype and mutant ALK kinase domain was done.
Ted W. Johnson +7 more
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