Results 151 to 160 of about 2,879,970 (295)

Combined Effects of Thermal Cycling Aging and Reinforcement Content on the Ball‐On‐Disk Wear of Additively Manufactured Polylactic Acid Composites

Polymer Composites, EarlyView.
Thermal Aging and Tribological Tests of Additive Manufactured PLA Composites. ABSTRACT This study focuses on the additive manufacturing of pure polylactic acid (PLA) specimens and milled glass fiber (GF)‐filled PLA composites under thermal cycling aging and wear tests. Wear tracks have been analyzed via 3D optical profiling and SEM imaging.
Sinan Fidan, Satılmış Ürgün, Nevin Gamze Karsli, Taner Yilmaz, Mustafa Özgür Bora, Mehmet İskender Özsoy   +5 more
wiley   +1 more source

Antikythera Mechanism PTMs 11-16 extra-brightened

, 2019
These PTMs were constructed from images of all known remaining surfaces of the Antikythera Mechanism fragments housed in the National Archaeological Museum in Athens, Greece.
Antikythera Mechanism Research Project
core   +10 more sources

Modified control method of a motion compensated gangway. [PDF]

PLoS One
Jiyue Z, Liu W, Yang H.
europepmc   +1 more source

Comparative Analysis of Post‐Buckling Torsional Response in Carbon/Aramid Hybrid and Carbon Fiber Composites: Experimental Evaluation of Synergistic Effects Beyond Macro‐Scale Modeling Limits

Polymer Composites, EarlyView.
Post‐buckling torsional response of carbon fiber (a) and intraply carbon/aramid hybrid (b) composites, revealing yarn‐level interaction beyond macro‐scale modeling limits. ABSTRACT This study investigates the buckling and post‐buckling performance of Carbon Fiber Reinforced Epoxy (CFRE) and intraply Carbon/Aramid Fabric Reinforced Epoxy (C/AFRE ...
G. E. Guloglu, B. Akış
wiley   +1 more source

A Fine Motion Mechanism of Dual Servo Control for Ultraprecision Positioning

, 1993
In order to respond to the increasing demands of ultraprecision positioning mechanism in the field of precision engineering, more accurate stages are needed whose positioning uncertainty should be in the unprecedented level of nanometers, while ...
이창우, 김승우, 이형석, 오정석   +3 more
core  

A High-Pointing-Accuracy Implementation Method for an 18-m Antenna Based on a Multi-Error-Source Coupled Model. [PDF]

Sensors (Basel)
Zhang W, He G, Wang J, Yu T, Wang F, Zhou H, Luo R.   +6 more
europepmc   +1 more source

Servo-mechanism Fundamentals

Nature, 1948
openaire   +2 more sources

Automatic Regulators and Servo Mechanisms [PDF]

Nature, 1947
openaire   +1 more source

Single Versus Double Screw Extrusion: Impact on Mechanical Performance and Crack Resistance for a Virgin, Recycled, and Blended Polypropylene

Polymer Engineering &Science, EarlyView.
Schematic overview of the study approach and key findings. ABSTRACT To evaluate the influence of extrusion on material performance, three processing methods, single extrusion (1x Ex), double extrusion (2x Ex), and double screw compounding (C), were investigated for virgin polypropylene (vPP), recycled PP (rPP), and a blend containing 10% rPP (rPP10 ...
J. Pötzlbauer, J. Geier, B. Haar, S. Schuschnigg, M. Messiha, T. Koch, C. Maurer, G. Pinter, F. Arbeiter   +8 more
wiley   +1 more source

Antikythera Mechanism PTMs 35-42, Fragment B

, 2019
These PTMs were constructed from images of all known remaining surfaces of the Antikythera Mechanism fragments housed in the National Archaeological Museum in Athens, Greece.
Antikythera Mechanism Research Project
core   +13 more sources