Results 21 to 30 of about 91,819 (313)

A Review of the Most Important Methods for Severe Plastic Deformation of Titanium [PDF]

مواد نوین, 2023
In recent years, extensive studies have been conducted on severe plastic deformation based on suitable processes for sheets and solid materials. Considering the limitations in some properties and crucial applications of titanium metal, these methods are ...
Sayyed Mohammadreza Sedehi, Mohammadreza Maraki, Ali Jalali, Hadi Ezadi   +3 more
doaj   +1 more source

Investigations on the tensile deformation of pure Mg and Mg–15Gd alloy by in-situ X-ray synchrotron radiation and visco-plastic self-consistent modeling

Journal of Magnesium and Alloys, 2023
In this study, the texture evolutions of two Mg materials during tension are explored. In-situ X-ray synchrotron and Visco-Plastic Self-Consistent (VPSC) modeling are employed to investigate the different deformation modes between pure Mg and Mg–15Gd (wt.
Yuling Xu, Yuanding Huang, Yuye Wang, Weiming Gan, Shiwei Wang, Emad Maawad, Norbert Schell, Norbert Hort   +7 more
doaj   +1 more source

Research on surrounding rock control technology of deep roadway based on butterfly failure theory

Meitan kexue jishu, 2023
At present, roadway surrounding rock control is still one of the major problems in deep mining of coal resources. The formation and development of the plastic zone of the surrounding rock is the main cause of large deformation and failure of roadway.
WANG Weijun, FAN Lei, MA Yujie, YUAN Chao   +3 more
doaj   +1 more source

Evaluating the Effectiveness of Magnetic-Pulse Treatment for Healing Continuity Defects in the Metal of Oil and Gas Pipelines

Metals, 2023
This research paper addresses the issues in evaluating the effectiveness of magnetic-pulse treatment for healing continuity defects in the metal of oil and gas pipelines. A theoretical analysis of the magnetic-pulse action mechanism on continuity defects
Andrey Schipachev, Mohammed Aljadly, Oksana Ganzulenko, Dmitrii Chernikov, Vasilii Razzhivin, Rinat Yusupov   +5 more
doaj   +1 more source

Effects of Stress State, Crack—γ/γ′ Phase Interface Relative Locations and Orientations on the Deformation and Crack Propagation Behaviors of the Ni-Based Superalloy—A Molecular Dynamics Study

Crystals, 2023
In this study, we systematically investigate the influence of stress states, relative locations, and orientations of crack—γ/γ′ phase interfaces on the deformation and crack propagation behaviors of the Ni-based superalloy through molecular dynamics ...
Xinmao Qin, Yilong Liang, Jiabao Gu
doaj   +1 more source

The role of histone modifications in transcription regulation upon DNA damage

FEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

Mechanism Governing the Effect of Roller Straightening of a Pure Magnesium Strip on the Tensile Stress–Strain Curve Shape

Journal of Manufacturing and Materials Processing
A roller straightening process of a pure magnesium strip, accompanied by alternating elastic-plastic deformation, was performed through one and three passes, where one pass corresponded to 19 bending events.
Stanislav O. Rogachev, Viacheslav E. Bazhenov, Eugene S. Statnik, Vladimir A. Andreev, Anatoly E. Shelest, Nikita A. Ershov   +5 more
doaj   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Reciprocating wear behavior of multi-directionally forged and aged Al-Cu-Li alloy

Materials Research Express
Al-Cu-Li alloys have drawn attention because of their decreased density, which is a result of the growing need for lightweight material systems in aerospace and aircraft applications.
C Jagadeesh, Shivananda Nayaka H, Ramesh S, Gajanan Anne   +3 more
doaj   +1 more source

Modeling hepatic fibrosis in TP53 knockout iPSC‐derived human liver organoids

Molecular Oncology, EarlyView.
This study developed iPSC‐derived human liver organoids with TP53 gene knockout to model human liver fibrosis. These organoids showed elevated myofibroblast activation, early disease markers, and advanced fibrotic hallmarks. The use of profibrotic differentiation medium further amplified the fibrotic signature seen in the organoids.
Mustafa Karabicici, Soheil Akbari, Ceyda Caliskan, Canan Celiker, Ozden Oz, Leman Binokay, Gökhan Karakulah, Serif Senturk, Esra Erdal   +8 more
wiley   +1 more source