Results 91 to 100 of about 1,519,388 (324)

Inferring comparative advantage via entropy maximization

Journal of Physics: Complexity, 2023
We revise the procedure proposed by Balassa to infer comparative advantage, which is a standard tool in Economics to analyze specialization (of countries, regions, etc). Balassa’s approach compares a country’s export of a given product with what would be
Matteo Bruno, Dario Mazzilli, Aurelio Patelli, Tiziano Squartini, Fabio Saracco   +4 more
doaj   +1 more source

A graph‐theoretic approach to randomization tests of causal effects under general interference [PDF]

Journal of the Royal Statistical Society: Series B (Statistical Methodology), 2019
Interference exists when a unit's outcome depends on another unit's treatment assignment. For example, intensive policing on one street could have a spillover effect on neighbouring streets.
David Puelz, Guillaume W. Basse, A. Feller, Panos Toulis   +3 more
semanticscholar   +1 more source

Laser Metal Deposited Ti4822 Hollow Pipe: Experimental and Computational Modelling Study

Advanced Engineering Materials, EarlyView.
Laser metal deposition (LMD) of a crack‐free built Ti4822 alloys is challenging. This article reports outstanding characteristics of a hollow pipe that is built with LMD technology when a predicted, nontransformation substrate temperature of 800 °C is used.
Sadiq A. Raji, Monnamme Tlotleng, Samuel Skhosane, Lehlogonolo R. Kanyane, Abimbola P. I. Popoola, Sisa L. Pityana   +5 more
wiley   +1 more source

Development and Preliminary In Vivo Study of 3D‐Printed Bioactive Glass Scaffolds with Trabecular Architecture

Advanced Engineering Materials, EarlyView.
This study reports the fabrication of trabecular bioactive glass scaffolds (composition “1d”: 46.1SiO2‐28.7CaO‐8.8MgO‐6.2P2O5‐5.7CaF2‐4.5Na2O wt%) through vat photopolymerization and the relevant results from mechanical testing and in vivo implantation procedures in rabbit femora, showing great promise for bone tissue engineering applications.
Dilshat Tulyaganov, Roberta Gabrieli, Avzal Akbarov, Nigora Nigmatova, Bekhzod Khabilov, Alessandro Schiavi, Martin Schwentenwein, Enrica Verné, Francesco Baino   +8 more
wiley   +1 more source

The Key Indicators of the Normality of Distribution

Inovacije u Nastavi, 2020
Statistics plays an important role in describing the results of various research. The basic role of statistical reasoning is to enable generalizations valid for the entire population to be made on the basis of certain quantitative characteristics of the ...
Zoran Č. Vidović, Маrija. M. Vorkapić   +1 more
doaj   +1 more source

Kinematic analysis of complex gear mechanisms [PDF]

, 2010
This paper presents a general kinematic analysis method for complex gear mechanisms. This approach involves the null-space of the adjacency matrix associated with the graph of the mechanism weighted by complex coecients.
Alazard, Daniel, Penaud, Julie
core  

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

Advanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice, Krzysztof S. Stopka, Michael D. Sangid   +2 more
wiley   +1 more source

Distributed Network Tomography Applied to Stochastic Delay Profile Estimation [PDF]

Radioengineering, 2020
In this paper is shown, how delay properties of the edges of a network with stochastic properties can be estimated cooperatively by individual nodes that retain the delay profiles of the entire network. The proposed algorithm adopts null-space projection-
J. Kolar, J. Sykora, U. Spagnolini
doaj  

Null and non–rainbow colorings of maximal planar graphs

Electronic Notes in Discrete Mathematics, 2013
Abstract For maximal planar graphs of order n ⩾ 4 , we prove that a vertex–coloring containing no rainbow faces uses at most ⌊ 2 n − 1 3 ⌋ colors, and this is best possible. The main ingredients in the proof are classical homological tools. By considering graphs as topological spaces, we introduce the notion of a null coloring,
Amanda Montejano, Jorge L. Arocha
openaire   +1 more source

Assignment and distributed control of laplacian null space in multiagent systems

International Journal of Control
The benchmark consensus protocol is used by the most notable distributed algorithms for controlling multiagent systems through local interaction rules, where it yields to the well-known Laplacian matrix whose null space is fixed and is spanned by the ...
Dzung Tran, T. Yucelen, Deniz Kurtoglu, S. B. Sarsılmaz   +3 more
semanticscholar   +1 more source