Results 41 to 50 of about 33,101 (294)

Modelling of cutting process impact on machine tool thermal behaviour based on experimental data [PDF]

open access: yes, 2017
Achieving high workpiece accuracy is a long-term goal of machine tool designers. There are many causes of workpiece inaccuracy, with thermal errors being the most dominant.
Horejš O., Mareš M.
core   +1 more source

A Vascular Microphysiological Model of Lung Fibrosis Reveals That Myofibroblasts and IPF Patient‐Derived Fibroblasts Impair Angiogenesis and Vasculogenesis

open access: yesAdvanced Functional Materials, EarlyView.
A microphysiological lung fibrosis model recapitulates myofibroblast–vascular interactions. Induced myofibroblasts and patient‐derived IPF fibroblasts impair angiogenesis and increase vascular permeability via TGF‐β1–driven signaling. Pharmacological interventions with SB 431542 and VEGF supplementation restore vascular morphology and barrier function.
Elena Cambria   +7 more
wiley   +1 more source

Pembangunan Modul Pengajaran Kendiri (MPK) keusahawanan dalam topik isu keusahawanan bagi pelajar diploma di politeknik [PDF]

open access: yes, 2004
Terdapat pelbagai kaedah pembelajaran yang telah diperkenalkan termasuklah kaedah pembelajaran yang menggunakan pendekatan pembelajaran bermodul secara kendiri.
Shaik Ismail, Siti Mahani
core  

Feed rate modeling in circular–circular interpolation discontinuity for high-speed milling [PDF]

open access: yes, 2013
In this paper, a modeling approach is presented in order to evaluate feed rate during a circular interpolation in high-speed milling. The developed model depends on the type of discontinuity and the kinematic performance of the machine tool.
B. Gassara   +13 more
core   +4 more sources

A Smart Bio‐Battery Facilitates Diabetic Bone Defect Repair Via Inducing Macrophage Reprogramming and Synergistically Modulating Bone Remodeling Coupling

open access: yesAdvanced Functional Materials, EarlyView.
This research presents a novel implantable bio‐battery, GF‐OsG, tailored for diabetic bone repair. GF‐OsG generates microcurrents in high‐glucose conditions to enhance vascularization, shift macrophages to the M2 phenotype, and regulate immune responses.
Nanning Lv   +10 more
wiley   +1 more source

Compensation of a ball end tool trajectory in complex surface milling [PDF]

open access: yes, 2012
This work is consecrated to the minimising of machining errors based on a method for the compensation of the trajectory to be machined in hemispherical milling.
Baili, Maher   +4 more
core   +3 more sources

Microplastics from Wearable Bioelectronic Devices: Sources, Risks, and Sustainable Solutions

open access: yesAdvanced Functional Materials, EarlyView.
Bioelectronic devices (e.g., e‐skins) heavily rely on polymers that at the end of their life cycle will generate microplastics. For research, a holistic approach to viewing the full impact of such devices cannot be overlooked. The potential for devices as sources for microplastics is raised, with mitigation strategies surrounding polysaccharide and ...
Conor S. Boland
wiley   +1 more source

Tribological performances of alternating multilayer diamond films on Si3N4 ceramic substrates

open access: yesJin'gangshi yu moliao moju gongcheng
ObjectivesWith the development of science and technology, silicon nitride ceramics have excellent physical and chemical properties such as high strength, high hardness, high temperature resistance, corrosion resistance, and wear resistance.
He WANG, Haigen ZHAO, Guangyu YAN
doaj   +1 more source

Optimization of machining processes preparation with usage of Strategy Manager

open access: yesMATEC Web of Conferences, 2018
At present, the optimization has an important role in machining processes preparation of NC programs. The article deals with the possibilities of automate creation of NC programs by using the NC strategies in CAD/CAM system Edgecam 2017 R2.
Dodok Tomáš   +2 more
doaj   +1 more source

PCPro a Novel Technology for Rapid Prototyping and Rapid Manufacturing [PDF]

open access: yes, 2005
PCPro stands for Precise Cast Prototyping, which is a combination of casting technologies and milling. This method was developed at Fraunhofer IWS in Dresden, Germany. It is patented in Germany [1] and is applied in the USA under US 10/794,936.
Beyer, E.   +3 more
core  

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