Results 71 to 80 of about 99,412 (322)
Creep damage evolution and instability induction mechanism of rock under impact disturbance
Meitan xuebaoIn order to study the creep damage mechanism of composite coal rock mass under impact disturbance, based on the creep equation model under complex stress and considering the heterogeneity of coal and rock materials, a creep damage constitutive model ...
Dongliang JI +7 more
doaj +1 more source
Study on Creep Characteristics and Constitutive Relation of Fractured Rock Mass
Shock and Vibration, 2020 In order to effectively describe the whole creep process of fractured rock mass, triaxial unloading creep tests were carried out on prefractured coal samples using constant axial pressure and graded unloading confining pressure, and the axial and lateral
Maotong Li +4 more
doaj +1 more source
Study on Creep Mechanical Properties of Non-Water Reacting Polyurethane Grouting Material
Advances in Materials Science and Engineering, 2022 Non-water reacting polyurethane is a new type of grouting material for support reinforcement and emergency rescue, whose creep mechanical behavior is directly related to the stability and safety of the reinforcement project.
Heng Liu +4 more
doaj +1 more source
Logarithmic vs Andrade's transient creep: the role of elastic stress redistribution [PDF]
arXiv, 2022 Creep is defined as time-dependent deformation and rupture processes taking place within a material subjected to a constant applied stress smaller than its athermal, time-independent strength. This time-dependence is classically attributed to thermal activation of local deformation events.
arxiv
Identification of novel small molecule inhibitors of ETS transcription factors
FEBS Letters, EarlyView.ETS transcription factors play an essential role in tumourigenesis and are indispensable for sprouting angiogenesis, a hallmark of cancer, which fuels tumour expansion and dissemination. Thus, targeting ETS transcription factor function could represent an effective, multifaceted strategy to block tumour growth. The evolutionarily conserved E‐Twenty‐Six
Shaima Abdalla +9 more
wiley +1 more source
Small Two-Bar Specimen Creep Testing of Grade P91 Steel at 650°C
High Temperature Materials and Processes, 2016 Commonly used small creep specimen types, such as ring and impression creep specimens, are capable of providing minimum creep strain rate data from small volumes of material. However, these test types are unable to provide the creep rupture data. In this
Ali Balhassn S. M., Hyde Tom H., Sun Wei
doaj +1 more source
Creep rupture of materials: insights from a fiber bundle model with relaxation [PDF]
, 2010 I adapted a model recently introduced in the context of seismic phenomena, to study creep rupture of materials. It consists of linear elastic fibers that interact in an equal load sharing scheme, complemented with a local viscoelastic relaxation mechanism.
arxiv +1 more source
Failure precursors and failure mechanisms in hierarchically patterned paper sheets in tensile and creep loading [PDF]
arXiv, 2023 Quasi-brittle materials endowed with (statistically) self-similar hierarcical microstructures show distinct failure patterns that deviate from the standard scenario of damage accumulation followed by crack nucleation-and-growth. Here we study the failure of paper sheets with hierarchical slice patterns as well as non-hierarchical and unpatterned ...
arxiv
The Saccharomyces cerevisiae amino acid transporter Lyp1 has a broad substrate spectrum
FEBS Letters, EarlyView.In Saccharomyces cerevisiae, Yeast Amino acid Transporter family members mediate the import of amino acids, ranging from substrate specialists to generalists. Here, we show that the specialist transporter, Lyp1, has a broader substrate spectrum than previously described, with affinity constants spanning from micromolar to millimolar.
Foteini Karapanagioti +3 more
wiley +1 more source
FEBS Letters, EarlyView.In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley +1 more source