Results 61 to 70 of about 7,980,398 (271)

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

Aging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

Collapse failure of textured subsea pipeline under external pressure; numerical and parametric study

, 2022
The concept of pseudo-cylindrical concave polyhedral (PCCP) shell is adopted for subsea pipeline applications and termed as “textured pipe”. In this study, the collapse responses of proposed textured pipelines subjected to external pressure are studied ...
Alrsai, Mahmoud, Al-Amarat, Feda'a, Karampour, Hassan, Alsanat, Husam   +3 more
core   +1 more source

Flexural Behavior of 3D‐Printed Porous Bouligand‐Structured Polymers: Influence of Pitch Angle and Porosity

Advanced Engineering Materials, EarlyView.
This study examines how helicoidal architectures with different porosities respond to bending. Adjusting layer angle and spacing in 3D‐printed polymers reveals clear tradeoffs between stiffness, strength, and energy absorption. Experiments and simulations highlight designs that distribute stress effectively, offering pathways for optimizing lightweight
Praveenkumar Subhash Patil, Edward D. McCarthy, Parvez Alam   +2 more
wiley   +1 more source

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

Advanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch, Maximilian Holland, Klaus Drechsler, Johannes Schilp   +3 more
wiley   +1 more source

Experimental investigation and limit analysis of shield tunnel face failure mechanism in sand

Underground Space
Shield tunneling in urban underground space necessitates tight control over support pressure at the tunnel face and a thorough insight into ground collapse mechanisms.
Mengzhe Huo, Weizhong Chen, Jingqiang Yuan, Guojun Wu, Yunfa Li, Yubiao Liu   +5 more
doaj   +1 more source

PASTA‐ELN: Simplifying Research Data Management for Experimental Materials Science

Advanced Engineering Materials, EarlyView.
Research data management faces ongoing hurdles as many ELNs remain complex and restrictive. PASTA‐ELN offers an open‐source, cross‐platform solution that prioritizes simplicity, offline access, and user control. Its in tuitive folder structure, modular Python add‐ons, and open formats enable seamless documentation, FAIR data practices, and easy ...
S. Brinckmann, G. Winkens, R. Schwaiger
wiley   +1 more source

Characteristic Pressure Waveforms Can Distinguish Airway Collapse Patterns in Sleep Apnea Patients: A Pilot Study

OTO Open
Objective To use pharyngeal pressure recordings to distinguish different upper airway collapse patterns in obstructive sleep apnea (OSA) patients, and to assess whether these pressure recordings correlate with candidacy assessment for hypoglossal nerve ...
Ravi R. Shah, Ahmad F. Mahmoud, Raj C. Dedhia, Erica R. Thaler   +3 more
doaj   +1 more source

Spring-supported arch model for predicting hydrostatic collapse strength of flexible riser with layer gap

Zhongguo Jianchuan Yanjiu, 2019
[Objectives] As oil and gas exploration enters the field of ultra-deep water,once the outer structure of the flexible riser is damaged,the inner carcass will carry huge external hydrostatic pressure.
Li Xiao, Jiang Xiaoli, Hopman Hans
doaj   +1 more source

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

Advanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev, Noah‐Lean Roschlaub, Anne Jung   +2 more
wiley   +1 more source

On collapse of the inner pipe of a pipe-in-pipe system under external pressure

Engineering structures, 2018
Collapse of the inner pipe of a pipe-in-pipe (PIP) system under external pressure is studied experimentally and numerically herein. Hyperbaric chamber test results of three PIP systems with identical inner pipes and different outer pipes are presented ...
Mahmoud Alrsai, H. Karampour, F. Albermani   +2 more
semanticscholar   +1 more source