Results 71 to 80 of about 374,105 (288)

Multimodal Mechanical Testing of Additively Manufactured Ti6Al4V Lattice Structures: Compression, Bending, and Fatigue

open access: yesAdvanced Engineering Materials, EarlyView.
In this experimental study, the mechanical properties of additively manufactured Ti‐6Al‐4V lattice structures of different geometries are characterized using compression, four point bending and fatigue testing. While TPMS designs show superior fatigue resistance, SplitP and Honeycomb lattice structures combine high stiffness and strength. The resulting
Klaus Burkart   +3 more
wiley   +1 more source

Pronomes nulos na posição de sujeito no português de Angola - um estudo preliminar

open access: yesFilologia e Linguística Portuguesa, 2007
In this article we present a preliminary study of pronouns in subject position in the Portuguese of Angola (PA), based on data obtained in Chavagne (2005).
Márcia Santos Duarte de Oliveira   +1 more
doaj  

Language Development as a Change of the Parameter Pattern of the Language System

open access: yesПсихолінгвістика, 2018
The article advances linguistic synergetics as a novel research methodology by focusing on applicability of synergetic principles to language development studies. Synergetics is a name for the science of complexity that deals with principles of emergence,
Tetiana Dombrovan   +1 more
doaj   +1 more source

The Properties of Cointegration Tests in Models with Structural Change [PDF]

open access: yes
In this paper we examine, by means of Monte Carlo simulation, the properties of several cointegration tests when long run parameters are subject to structural changes.
Luis F. Martins, Vasco J. Gabriel
core  

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

Kerr-Schild metrics revisited I. The ground state

open access: yes, 2002
The Kerr-Schild pencil of metrics $g_{ab}+\La l_al_b$ is investigated in the generic case when it maps an arbitrary vacuum space-time with metric $g_{ab}$ to a vacuum space-time.
Debever R.   +5 more
core   +1 more source

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

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud   +7 more
wiley   +1 more source

The Interpretation of Null Subjects in a Radical Pro-drop Language: Topic Chains and Discourse-semantic Requirements in Chinese

open access: yesStudies in Chinese Linguistics, 2019
Based on original data collected through an online experiment, evidence is provided in this paper that the interpretation of null subjects in a radical pro-drop language like Chinese relies on the topic criterion proposed for consistent and partial pro ...
Frascarelli Mara, Casentini Marco
doaj   +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  

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