Results 121 to 130 of about 600,182 (368)

The rewards of roughing it [PDF]

Science, 2015
Modern life, concentrated in cities and lived online, is corroding many young people's innate love for nature. Much of science, too, is moving away from fieldwork. Biology is increasingly lab-based, and much important earth science research is now done in front of a computer screen rather than out in the physical world.
openaire   +2 more sources

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

Effect of surface roughness in the determination of the mechanical properties of material using nanoindentation test [PDF]

, 2014
A quantitative model is proposed for the estimation of macro-hardness using nanoindentation tests. It decreases the effect of errors related to the non-reproducibility of the nanoindentation test on calculations of macro-hardness by taking into account ...
MARTEAU, J., Yang Xia, IOST, Alain, Pierre‐Emmanuel Mazeran, BIGERELLE, Maxence, BOUVIER, S., Maxence Bigerelle, MAZERAN, Pierre-Emmanuel, BIGERELLE, M., Julie Marteau, Alain Iost, MARTEAU, Julie, Salima Bouvier, XIA, Yang, MAZERAN, P.-E., BOUVIER, Salima   +15 more
core   +1 more source

Surface Topography Steer Soft Tissue Response and Antibacterial Function at the Transmucosal Region of Titanium Implant

International Journal of Nanomedicine
Mohsen Safaei,1,2,* Hossein Mohammadi,3,4,* Salmia Beddu,4 Hamid Reza Mozaffari,5 Razieh Rezaei,2 Roohollah Sharifi,6 Hedaiat Moradpoor,7 Nima Fallahnia,8 Mona Ebadi,9,* Mohd Suzeren Md Jamil,9 Ahmad Rifqi Md Zain,10 Muhammad Rahimi Yusop9 ...
Safaei M, Mohammadi H, Beddu S, Mozaffari HR, Rezaei R, Sharifi R, Moradpoor H, Fallahnia N, Ebadi M, Md Jamil MS, Md Zain AR, Yusop MR   +11 more
doaj  

Bayesian exploration for intelligent identification of textures

Frontiers in Neurorobotics, 2012
In order to endow robots with humanlike abilities to characterize and identify objects, they must be provided with tactile sensors and intelligent algorithms to select, control and interpret data from useful exploratory movements.
Jeremy A. Fishel, Jeremy A. Fishel, Gerald E. Loeb, Gerald E. Loeb   +3 more
doaj   +1 more source

Reducing the roughness of internal surface of an additive manufacturing produced 316 steel component by chempolishing and electropolishing

Additive Manufacturing, 2018
Reducing the surface roughness of an additively manufactured (AM) component is one of the most critical factors in determining the suitability of an AM component. As produced surface roughness of an AM component is very high.
P. Tyagi, Tobias Goulet, Christopher Riso, R. Stephenson, Nitt Chuenprateep, Justin Schlitzer, Cordell Benton, F. García‐Moreno   +7 more
semanticscholar   +1 more source

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

Advanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold, Dylan Jennings, Robert Vaßen   +2 more
wiley   +1 more source

Analysis of Shape Geometry and Roughness of Ti6Al4V Parts Fabricated by Nanosecond Laser Ablation

Micromachines, 2018
Laser milling is a micro-machining process that uses a laser beam as a tool to remove material through the layer-by-layer ablation mechanism. Generally in laser ablation, the quality of parts is reduced by melt accretions and thermal damage; therefore ...
Sabina Luisa Campanelli, Fulvio Lavecchia, Nicola Contuzzi, Gianluca Percoco   +3 more
doaj   +1 more source

Performance Analysis of Abradable Coating Systems for Aircraft Gas Turbines

Advanced Engineering Materials, EarlyView.
Three CoNiCrAlY/YSZ/MgAl2O4 abradable liner configurations on a nickel‐superalloy are evaluated by thermal‐gradient cycling and incursion tests. Laser ablation of the bondcoat and/or Y2O3‐stabilized ZrO2 (YSZ) intermediate layer increases mechanical interlocking and bonding for thick topcoats.
Hanna Heyl, Daniel Emil Mack, Martin Tandler, Susanne Schrüfer, Robert Vaßen   +4 more
wiley   +1 more source

Surface roughness variation of thin wall milling, related to modal interactions [PDF]

, 2008
High-speed milling operations of thin walls are often limited by the so-called regenerative effect that causes poor surface finish. The aim of this paper is to examine the link between chatter instability and surface roughness evolution for thin wall ...
Arnaud, Lionel, Seguy, Sébastien, Dessein, Gilles   +2 more
core   +1 more source