Results 51 to 60 of about 832,948 (254)

On the impact of capillarity for strength at the nanoscale

Nature Communications, 2017
Nanoscale crystals can experience lattice instability and a tension-compression asymmetry of their strength. Here, Mameka and colleagues scrutinize the proposition that these phenomena arise from surface-induced stress, finding that the surface tension ...
Nadiia Mameka, Jürgen Markmann, Jörg Weissmüller   +2 more
doaj   +1 more source

Multimodal Microstructure and Mechanical Properties of AZ91 Mg Alloy Prepared by Equal Channel Angular Pressing plus Aging

Metals, 2018
Developing cost-effective magnesium alloys with high strength and good ductility is a long-standing challenge for lightweight metals. Here we present a multimodal grain structured AZ91 Mg alloy with both high strength and good ductility, prepared through
Zhenquan Yang, Aibin Ma, Huan Liu, Jiapeng Sun, Dan Song, Ce Wang, Yuchun Yuan, Jinghua Jiang   +7 more
doaj   +1 more source

A QM/MM approach for the study of monolayer-protected gold clusters

, 2012
We report the development and implementation of hybrid methods that combine quantum mechanics (QM) with molecular mechanics (MM) to theoretically characterize thiolated gold clusters.
A Corma, A Venzo, A Warshel, AC Templeton, AK Rappé, ASK Hashmi, CJ Zhong, CM Aikens, DT Miles, F Weigend, G Henkelman, H Qian, I Garzón, J Akola, JF Parker, John A. Montgomery, José A. Gascón, JR Cheeseman, JTv Wijngaarden, L Fabris, M Dasog, M Haruta, MS Devadas, MW Heaven, MZ Zhu, NV Perera, O Lopez-Acevedo, PD Jadzinsky, RFW Bader, S Dapprich, Sandipan Banerjee, T Vreven, WD Cornell   +32 more
core   +1 more source

On different classes of constitutive descriptions in finite electro‐mechanics: Computational modelling of isotropic and anisotropic electro‐active materials [PDF]

, 2023
Anas Kanan, Michael Kaliske
openalex   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Improving Strength and Ductility of a Mg-3.7Al-1.8Ca-0.4Mn Alloy with Refined and Dispersed Al₂Ca Particles by Industrial-Scale ECAP Processing

Metals, 2019
Tailoring the morphology and distribution of the Al2Ca second phase is important for improving mechanical properties of Al2Ca-containing Mg-Al-Ca based alloys.
Ce Wang, Aibin Ma, Jiapeng Sun, Xiaoru Zhuo, He Huang, Huan Liu, Zhenquan Yang, Jinghua Jiang   +7 more
doaj   +1 more source

Improving microstructure and corrosion resistance of LPSO-containing Mg–Y–Zn–Mn alloy through ECAP integrated with prior solution treatment

Journal of Materials Research and Technology, 2022
Unique Mg-RE (rare earth) alloys with long-period stacking ordered (LPSO) structures have attracted extensive attention for their excellent mechanical properties and bright prospects. Thus it is urgent to improve their corrosion resistance simultaneously.
Yuxuan Yuan, Aibin Ma, Zheng Gao, Haoran Wu, Yaxiao Gu, Jiajia Wang, Jianqing Chen, Chenwei Ji, Jinghua Jiang   +8 more
doaj   +1 more source

Cell density–dependent nuclear‐cytoplasmic shuttling of SETDB1 integrates with Hippo signaling to regulate YAP1‐mediated transcription

FEBS Letters, EarlyView.
At low cell density, SETDB1 and YAP1 accumulate in the nucleus. As cell density increases, the Hippo pathway is gradually activated, and SETDB1 is associated with increased YAP1 phosphorylation. At high cell density, phosphorylated YAP1 is sequestered in the cytoplasm, while SETDB1 becomes polyubiquitinated and degraded by the ubiquitin–proteasome ...
Jaemin Eom, Jaewoong Jang, Jung Sun Park, Yong‐Kook Kang   +3 more
wiley   +1 more source

Dealloying-based interpenetrating-phase nanocomposites matching the elastic behavior of human bone

Scientific Reports, 2017
The long-term performance of orthopedic implants depends crucially on a close match between the mechanical behavior of bone and of the implant material. Yet, the present man-made materials with the required biocompatibility and strength are substantially
I. V. Okulov, J. Weissmüller, J. Markmann   +2 more
doaj   +1 more source

β‐TrCP overexpression enhances cisplatin sensitivity by depleting BRCA1

Molecular Oncology, EarlyView.
Low levels of β‐TrCP (Panel A) allow the accumulation of BRCA1 and CtIP, which facilitate the repair of cisplatin‐induced DNA damage via homologous recombination (HR) and promote tumor cell survival. In contrast, high β‐TrCP expression (Panel B) leads to BRCA1 and CtIP degradation, impairing HR repair, resulting in persistent DNA damage and apoptosis ...
Rocío Jiménez‐Guerrero, Alejandro Belmonte‐Fernández, Mónica González‐Moreno, Laura Rodríguez‐Cordero, Begoña Pérez‐Valderrama, Joaquín Herrero‐Ruíz, Francisco Romero, Carmen Sáez, Miguel Á. Japón   +8 more
wiley   +1 more source