Results 21 to 30 of about 8,132 (255)

Fracture characteristics of Brazilian disc with fully internal cracks based on 3D-ILC

Yantu gongcheng xuebao, 2019
The fully internal crack is created in the Brazilian disc based on the 3D-ILC method, without any effect on the surface. The uniaxial compression experiments are performed on the Brazilian discs with internal cracks at different angles.
WANG Hai-jun 1, ZHANG Jiu-dan 2, REN Ran 3, TANG Lei 1, YU Shu-yang 2, ZHONG Ling-wei 2, ZHANG Ke 2
doaj   +1 more source

Microstructure and mechanical properties of 34CrNiMo6 steel repaired by laser remelting

Journal of Materials Research and Technology, 2020
Laser remelting can be used not only to improve the metal surface structure, but also to repair metal surface defects. 34CrNiMo6 belongs to European standard high strength alloy structural steel.
Renyu Liang, Chunping Huang, Hongwei Hao, Fenggang Liu, Fencheng Liu, Menghua Song, Liming Ke   +6 more
doaj   +1 more source

Microcracking monitoring and damage detection of graphene nanoplatelets-cement composites based on acoustic emission technology

Case Studies in Construction Materials, 2023
This study aims to identify the micro-cracking pattern and structural applications of cement composites replaced with 0 wt%, 0.04 wt%, and 0.08 wt% contents of graphene nanoplatelets (GNPs) over cement weight through acoustic emission (AE) monitoring ...
Shahzad Ashraf, Suliman Khan, Vipin Kumar Oad   +2 more
doaj   +1 more source

Comparison of predictions by mode II or mode III criteria on crack front twisting in three or four point bending experiments [PDF]

International Journal of Fracture, 2008
Whatever the external loading, a crack front in a solid tries to reach mode I loading conditions after propagation. In mode I+II, the crack kinks to annihilate mode II, kinking angle being well predicted by the principle of local symmetry (PLS) or by the maximum tangential stress criterion (MTS).
Lazarus, Veronique, Buchholz, F.-G., Fulland, M., Wiebesiek, J.   +3 more
openaire   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Description of Fatigue Crack Growth under Modes II, III and II+III in Terms of J-integral

Procedia Materials Science, 2014
AbstractMode II and mode III fatigue crack growth rates and the related intrinsic stress intensity factor range thresholds ΔKIIeff,th and ΔKIIIeff,th were for a long time expected to be equal. However, there are many theoretical and experimental indications of a slower crack growth rate and a higher threshold for mode III than that for mode II for ...
Vojtek, Tomáš, Pokluda, Jaroslav, Horníková, Jana, Šandera, Pavel, Slámečka, Karel   +4 more
openaire   +1 more source

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

FEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes, Jan Brysch, Carmen Gelze, Lilli Meier, Daniel Kümmel   +4 more
wiley   +1 more source

Effects of Multi-Crack Initiation in High-Speed Railway Wheel Subsurface on Tread Peeling Lifetime

Metals
The evolution characteristics of multi-source-fatigue-crack propagation in the subsurface of a high-speed wheel’s tread and its influence on tread peeling life are the basis for accurately evaluating wheel service lifetime.
Tao Guo, Bingzhi Chen, Xiuyang Fang
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source