Results 41 to 50 of about 5,741,583 (149)

The merging operation and \((d-i)\)-simplicial \(i\)-simple \(d\)-polytopes [PDF]

open access: yesCombinatorial Theory
We define a certain merging operation that given two $d$-polytopes $P$ and $Q$ such that $P$ has a simplex facet $F$ and $Q$ has a simple vertex $v$ produces a new $d$-polytope $P\hspace{0.1em}\triangleright Q$ with $f_0(P)+f_0(Q)-(d+1)$ vertices. We show that if for some $1\leq i\leq d-1$, $P$ and $Q$ are $(d-i)$-simplicial $i$-simple $d$-polytopes ...
Novik, Isabella, Zheng, Hailun
openaire   +4 more sources

Virtual Organization Structure for Agent-Based Local Electricity Trading

open access: yesEnergies, 2019
End-users are more active because of demand response programs and the penetration of distributed energy resources in the bottom-layer of the power systems.
Amin Shokri Gazafroudi   +2 more
doaj   +1 more source

La medicina popular. ¿Los límites culturales del modelo médico?

open access: yesRevista de Dialectología y Tradiciones Populares, 1994
En este artículo los autores exploran los usos «políticos» del concepto de medicina popular. Desde una posición cercana a la antropología critica de la medicina, se analiza el surgimiento del concepto a partir de la obra de Pitré, la apropiación de la ...
Ángel Martínez Hernáez   +1 more
doaj   +1 more source

On the Question of Charge Symmetry inD-DReactions [PDF]

open access: yesProgress of Theoretical Physics, 1966
The question of charge symmetry in D-D reactions is discussed in light of the recently discovered virtual excited states of the alpha particle. We point out their effects on the asymmetries in the angular distributions as well as the provision of a mechanism for P-wave enhancement. Relation with three-nucleon isobars is also discussed. D+D-+p+H 3 , D+D-
openaire   +1 more source

Influencia de la transglutaminasa en el rendimiento de la producción de queso dambo uruguayo

open access: yesInnotec, 2014
El queso dambo uruguayo es un queso de mediana humedad de origen danés con formulación modificada. Esta investigación estudió el uso de la enzima transglutaminasa en la producción de queso dambo tipo barra para aumentar el rendimiento del proceso.Se ...
Daniela Escobar   +5 more
doaj  

Hyperelliptic d -Tangential Covers and d × d -Matrix KdV Elliptic Solitons

open access: yesInternational Mathematics Research Notices, 2018
Abstract More than $40$ years ago I. Krichever developed the Theory of (vector) Baker–Akhiezer functions and devised a criterion for a $d$-marked compact Riemann surface to provide $d\times d$-matrix solutions to the KdV equation. Later on he also found a criterion for a $d$-marked curve to provide $d\times d$-matrix solutions to the ...
openaire   +1 more source

Water quality aspects from Spanish sites to support managed aquifer recharge (MAR) guidelines not based on maximum allowable concentration standards

open access: yesAcque Sotterranee
Most countries that have technical guidelines or regulations for artificial recharge or managed aquifer recharge (MAR), that include water quality aspects are based on the establishment of standards or Maximum Allowable Concentrations (MACs) to regulate
Enrique Fernandez-Escalante   +2 more
doaj   +1 more source

Hybrid Physics-LSTM Framework for Wind Power Prediction and Control in Virtual Microgrid Simulations

open access: yesIEEE Access
Three-dimensional physical systems play a pivotal role in the development of cyber-physical infrastructures, particularly in the implementation of digital twins that enable the evaluation of hypothetical and adverse scenarios through high-fidelity ...
Sebastian Lopez Florez   +3 more
doaj   +1 more source

Physical mechanism of the surface dd + is transition [PDF]

open access: yesEurophysics Letters (EPL), 2001
We discuss the basic physical mechanism of the surface d → d + is transition. Using the first-order perturbation theory, we show that the mid-gap states drive the transition. We present various order-of-magnitude estimates and consistency checks that support this picture.
openaire   +1 more source

Lithium-ion battery recycling: a perspective on key challenges and opportunities

open access: yesnpj Materials Sustainability
This paper deals with a critical analysis and perspective of key challenges and opportunities in lithium-ion battery recycling. It examines technical limitations, economic constraints, and regulatory fragmentation, while also identifying opportunities ...
Jaime Chacana-Olivares   +4 more
doaj   +1 more source

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