Results 31 to 40 of about 28,415 (248)

Numerical Analysis of a Skew Rolling Process for Producing a Stepped Hollow Shaft Made of Titanium Alloy Ti6Al4V

Archives of Metallurgy and Materials, 2016
The paper describes a rolling process for a hollow Ti6Al4V alloy shaft used in driving systems of light trucks. The shaft is formed by skew rolling using three tapered rolls.
Pater Z., Bulzak T., Tomczak J.
doaj   +1 more source

Hamiltonisation, measure preservation and first integrals of the multi-dimensional rubber Routh sphere

, 2019
We consider the multi-dimensional generalisation of the problem of a sphere, with axi-symmetric mass distribution, that rolls without slipping or spinning over a plane.
García-Naranjo, Luis C.
core   +1 more source

Compliant Pneumatic Feet with Real‐Time Stiffness Adaptation for Humanoid Locomotion

Advanced Robotics Research, EarlyView.
A compliant pneumatic foot with real‐time variable stiffness enables humanoid robots to adapt to changing terrains. Using onboard vision and pressure control, the foot modulates stiffness within each gait cycle, reducing impact forces and improving balance. The design, cast in soft silicone with embedded air chambers and Kevlar wrapping, offers durable,
Irene Frizza, Hiroshi Kaminaga, Philippe Fraisse, Gentiane Venture   +3 more
wiley   +1 more source

Numerical Analysis of the Skew Rolling Process for Rail Axles

Archives of Metallurgy and Materials, 2015
The paper describes a new method for producing stepped rail axles. The method is based on the skew rolling process. With this method, the product is formed by three tapered rolls located every 120° on the perimeter of the billet.
Pater Z., Tomczak J., Bulzak T.
doaj   +1 more source

New ductile fracture criterion for prediction of internal fracture in skew rolling [PDF]

, 2019
Skew rolling is the process of reducing the diameter of a round billet. In this process, internal fracture may occur in the rolled material. This phenomenon is known as the Mannesmann effect.
Kuroda, Koichi, Shimoda, Kazuhiro, Yamane, Koji   +2 more
core  

Microglial Fkbp5 Impairs Post‐Stroke Vascular Integrity and Regeneration by Promoting Yap1‐Mediated Glycolysis and Oxidative Phosphorylation

Advanced Science, EarlyView.
A post‐stroke perivascular niche of microglia characterized by low expression of M2 markers and elevated glycolysis, oxidative phosphorylation (OXPHOS), and phagocytic activity is identified, which is termed stroke‐activated vascular‐associated microglia (stroke‐VAM).
Yanan Li, Yanmei Qiu, Yunlei Yang, Yanhao Wei, Haokun Peng, Longhai Zeng, Pengcheng Li, Rentang Bi, Bo Hu   +8 more
wiley   +1 more source

Metal flow law of steel ball forming by skew rolling

工程科学学报, 2015
Based on the principle of steel ball forming by skew rolling, a finite element model of steel ball forming by skew rolling was established by using software DEFORM-3D.
ZHENG Zhen-hua, WANG Bao-yu, HU Zheng-huan   +2 more
doaj   +1 more source

Allogeneic Immune Cell Perfusion Inhibits the Growth of Vascularized 3D In Vitro Tumor Models, Induces Vascular Regression and Desmoplasia, but Promotes Tumor Cell Invasion

Advanced Science, EarlyView.
This study presents a vascularized 3D tumor model to investigate immune–stromal–tumor interactions under allogeneic PBMC perfusion. While immune cells induced tumor shrinkage, they also promoted vascular regression, stromal activation, and cancer cell invasion.
Alexandra Raab, Rasika Daware, Marcelo A. Szymanski de Toledo, Oskar Weber, Dimitris Kapsokalyvas, Twan Lammers, Horst Fischer, Federica De Lorenzi, Fabian Kiessling   +8 more
wiley   +1 more source

Designing Scalable Mechano‐Virucidal Nanostructured Acrylic Surfaces for Enhanced Viral Inactivation

Advanced Science, EarlyView.
Can a surface be designed to physically break viruses? This study explores how nanoscale geometry—specifically the spacing of tiny pillars—can determine whether viruses remain intact or rupture. Using flexible acrylic and a scalable fabrication process, the authors develop nanopillared, transparent surfaces that show strong antiviral activity without ...
Samson W. L. Mah, Denver P. Linklater, Vassil Tzanov, Chaitali Dekiwadia, Sergey Rubanov, Phuc H. Le, Laleh Tafakori, Ranya Simons, Graeme Moad, Soichiro Saita, Takashi Yanagishita, Hideki Masuda, Vladimir Baulin, Natalie A. Borg, Elena P. Ivanova   +14 more
wiley   +1 more source

Influence of process parameters on the forming mechanics parameters of the three-roll skew rolling forming of the railway hollow shaft with 1 : 5

Metalurgija, 2018
This paper presents the new technology applied in a three-roll skew rolling railway hollow shaft. The three-roll skew rolling forming simulation is conducted in railway hollow shaft with 1 : 5.
C. Xu, X. D. Shu
doaj