Results 81 to 90 of about 372,385 (285)

Manufacturing Continuous Fiber‐Reinforced Printing Filaments: Development of a Post‐Consolidation Unit

open access: yesAdvanced Engineering Materials, EarlyView.
A novel, temperature‐controlled post‐consolidation unit is developed to test its potential to improve the melt impregnation process used to manufacture continuous fiber‐reinforced filaments for additive manufacturing of high‐performance thermoplastics.
Daniel Beermann   +2 more
wiley   +1 more source

Simple Wald tests of the fractional integration parameter : an overview of new results [PDF]

open access: yes
This paper presents an overview of some new results regarding an easily implementable Wald test-statistic (EFDF test) of the null hypotheses that a time-series process is I(1) or I(0) against fractional I(d) alternatives, with d?(0,1), allowing for ...
Jesus Gonzalo   +2 more
core  

Unidirectional Tape‐Based Composites from Hemp and Pineapple Leaf Fiber: Mechanical Performance in Conventional and Bio‐Based Matrices

open access: yesAdvanced Engineering Materials, EarlyView.
The study investigates novel semi‐finished products made of unidirectionally arranged hemp or pineapple leaf fiber‐reinforced composites produced from different matrices. The materials are analyzed in terms of their mechanical and interfacial properties and void content.
Nina Graupner   +22 more
wiley   +1 more source

Regression Based Expected Shortfall Backtesting

open access: yes, 2019
This paper introduces novel backtests for the risk measure Expected Shortfall (ES) following the testing idea of Mincer and Zarnowitz (1969). Estimating a regression framework for the ES stand-alone is infeasible, and thus, our tests are based on a joint
Bayer, Sebastian, Dimitriadis, Timo
core   +1 more source

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti   +11 more
wiley   +1 more source

The validity and power of extreme sampling schemes for mediation analysis

open access: yesFrontiers in Genetics, 2011
Several authors have acknowledged that testing mediational hypotheses between treatments, genes, physiological measures and behaviors may substantially advance our understanding of how these associations operate.
Robert eMakowsky   +5 more
doaj   +1 more source

An elliptic boundary problem acting on generalized Sobolev spaces

open access: yes, 2017
We consider an elliptic boundary problem over a bounded region $\Omega$ in $\mathbb{R}^n$ and acting on the generalized Sobolev space $W^{0,\chi}_p(\Omega)$ for $1 < p < \infty$.
Denk, Robert, Faierman, Melvin
core  

Taraldsen’s generalization in diachrony : evidence from a diachronic corpus [PDF]

open access: yes, 2016
International audienceWe present the first large scale quantitative investigation of the syncretisation of verbal subject agreement in Medieval French and test a classic analysis which relates non-syncretic agreement and null subjects as parts of the ...
Crabbé, Benoît   +2 more
core   +2 more sources

Estimating the causal effect of a time-varying treatment on time-to-event using structural nested failure time models

open access: yes, 2003
In this paper we review an approach to estimating the causal effect of a time-varying treatment on time to some event of interest. This approach is designed for the situation where the treatment may have been repeatedly adapted to patient characteristics,
Dawid A. P.   +12 more
core   +4 more sources

Revisiting the Null Subject Parameter

open access: yes, 2017
With the advent of the Minimalist Program (Chomsky 1995), the prevailing view of linguistic variation and contrast within universal Grammar has undergone a shift from rigidly defined parameters ˗associated with clusters of properties (Chomsky 1981; Chomsky & Lasnik 1993)˗ to an approach in which features play a central role, are flexibly distributed ...
Sessarego, Sandro   +1 more
openaire   +1 more source

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