Results 81 to 90 of about 2,274,078 (285)

A Two-Degree of Freedom Variable Stiffness Actuator Based on the MACCEPA Concept

open access: yesActuators, 2014
The current state-of-the-art of variable stiffness actuators consists mostly of different concepts for single-degree of freedom joints. However, in bio-inspired robotic applications, multiple degrees of freedom variable stiffness actuators are often ...
Maarten Weckx   +6 more
doaj   +1 more source

A longitudinal gauge degree of freedom and the Pais Uhlenbeck field

open access: yes, 2013
We show that a longitudinal gauge degree of freedom for a vector field is equivalent to a Pais-Uhlenbeck scalar field. With the help of this equivalence, we can determine natural interactions of this field with scalars and fermions.
Di Dio, Enea   +2 more
core   +1 more source

Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics

open access: yesAdvanced Engineering Materials, EarlyView.
Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost   +4 more
wiley   +1 more source

degrees of freedom

open access: yes, 2014
Citation: 'degrees of freedom' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.D01572 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +2 more sources

Sample Kurtosis, GARCH-t and the Degrees of Freedom Issue [PDF]

open access: yes
Econometric modeling based on the Student’s t distribution introduces an additional parameter — the degree of freedom. In this paper we use a simulation study to investigate the ability of (i) the GARCH-t model (Bollerslev, 1987) to estimate the true ...
Maria S. Heracleous
core  

Design and development of a six degree of freedom hand controller [PDF]

open access: yes, 1981
The design objectives of a six degree of freedom manual controller are discussed with emphasis on a space environment. Details covered include problems associated with a zero-g environment, the need to accommodate both 'shirt sleeve' and space suited ...
King, M. L., Lippay, A., Mckinnon, G. M.
core   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

open access: yesAdvanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies   +2 more
wiley   +1 more source

Colapso da equipartição da energia

open access: yesQuímica Nova, 2001
This paper discuss the consequences of the equipartition principle when used to calculate the heat capacity of atoms and molecules, a discussion that appeared at the end of XIX century and beginning of the XX century.
Braga João Pedro
doaj  

The Design and Simulation of a Quadruped Multi-mode Mobile Robot

open access: yesJixie chuandong, 2022
In order to meet the needs of better completing tasks in a variety of terrains, a quadruped multi-mode mobile robot with walking mode, obstacle crossing mode and semi folding mode is designed, which can change the motion mode according to different ...
Xinyue Yu   +4 more
doaj  

Home - About - Disclaimer - Privacy