Results 31 to 40 of about 56,102 (241)

Sedimentary Mercury Enrichments as a Tracer of Large Igneous Province Volcanism

open access: yesGeophysical Monograph Series, Page 247-262., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Lawrence M. E. Percival   +3 more
wiley  

+1 more source

Effects of sampling rate on automated fatigue recognition in surface EMG signals

open access: yesCurrent Directions in Biomedical Engineering, 2015
This study investigated the effects different sampling rates may produce on the quality of muscle fatigue detection algorithms. sEMG signals were obtained from isometric contractions of the arm.
Kahl Lorenz   +2 more
doaj   +1 more source

Changes of Microstructures and Mechanical Properties in Commercially Pure Titanium after Different Cycles of Proposed Multi-Directional Forging

open access: yesMetals, 2019
A newly proposed multi-directional forging (MDF) was successfully applied to a commercially pure titanium (CP Ti). Severe plastic deformation would result in significant and complex changes of microstructure and mechanical properties, so microstructure ...
Zhanguang Zheng   +4 more
doaj   +1 more source

Challenges for recycling medium-density fiberboard (MDF)

open access: yesResults in Engineering, 2023
Medium-density fiberboard (MDF) is commonly used for furniture manufactured. The increase in demand and the short relative lifecycle have increased the generated waste volume, increasing concerns about disposal.
André Zimmer   +1 more
doaj   +1 more source

The stellar content of the Hamburg/ESO survey VI. The metallicity distribution of main-sequence turnoff stars in the Galactic halo

open access: yes, 2010
We determine the metallicity distribution function (MDF) of the Galactic halo based on metal-poor main-sequence turnoff-stars (MSTO) which were selected from the Hamburg/ESO objective-prism survey (HES) database.
A. Frebel   +76 more
core   +1 more source

Strength and deformation modification factors of wood based composites for engineering design [PDF]

open access: yes, 2008
This paper summarizes some of the findings from a comprehensive study concerning the performance of wood based composites in building construction. The presentation only focuses on the strength and deformation modification factors for engineering design ...
Enjily, V, Fan, M
core   +1 more source

Prediction of screw withdrawal resistance for plywood laminated panels and sandwich panels

open access: yesTurkish Journal of Forestry
Sandwich panels are favorable materials for structural or non-structural components due to durability, lightness, and longevity in service life. This study aimed to predict screw withdrawal resistance of the plywood laminated medium-density fiberboard ...
Ergün Güntekin, Mesut Uysal
doaj   +1 more source

Heritage entrepreneurship. Agency-driven promotion of the Mediterranean diet in Spain. [PDF]

open access: yes, 2015
This article explores the role of the agency in the social process that constitutes cultural heritage. By introducing the concept of heritage entrepreneurship to explain the conversion of cultural elements into heritage, we discuss the case of the ...
Pfeilstetter, Richard
core   +1 more source

Constitutive Model and Microstructure Evolution Finite Element Simulation of Multidirectional Forging for GH4169 Superalloy

open access: yesMetals, 2020
This study investigates three processes of multidirectional forging (MDF), namely, closed MDF (CMDF), single-open MDF, and double-open MDF, by using a constitutive equation and a dynamic recrystallization model of hot deformation of the GH4169 superalloy.
Yongbo Jin   +5 more
doaj   +1 more source

Multi-Element Abundance Measurements from Medium-Resolution Spectra. III. Metallicity Distributions of Milky Way Dwarf Satellite Galaxies [PDF]

open access: yes, 2011
We present metallicity distribution functions (MDFs) for the central regions of eight dwarf satellite galaxies of the Milky Way: Fornax, Leo I and II, Sculptor, Sextans, Draco, Canes Venatici I, and Ursa Minor.
Amorisco   +62 more
core   +3 more sources

Home - About - Disclaimer - Privacy