Results 71 to 80 of about 119,063 (269)
Realization of a Bilayer Elastic Topological Insulator
Advanced Science, EarlyView.Bilayer elastic wave topological insulators are experimentally realized, introducing the layer degree of freedom to access four topological phases. This enables diverse domain walls and transmission behaviors, including interlayer conversion and beam splitting.
Chengzhi Ma +4 more
wiley +1 more source
We offer a simple economic model of repeated barter to explore current economic exchange in Russia: individuals trade with each other in a dynamic environment where the threat of dissolving the relationship constrains the incentives to cheat. We show how
Prendergast, Canice, Stole, Lars
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Two‐Dimensional Triferroics: From Fundamental Couplings to Multifunctional Applications
Advanced Science, EarlyView.This graphic summarizes the three main types of currently reported 2D triferroic couplings. From the structural perspective, existing systems can be broadly classified into two categories, which exhibit distinct symmetry features and coupling behaviors. Beyond the lattice difference, a third type involves the interplay among ferroelectricity, magnetism,
Yang Li, Jialin Gong, Zhiqing Li
wiley +1 more source
Trade and economic relations of Eastern Caucasus with Russia (17th–18th centuries)
Вестник Тамбовского университета. Серия: Гуманитарные наукиImportance. In the 17th–18th centuries the development and strengthening of trade and economic relations between the peoples of Eastern Caucasus and the Russian state took place, which became systematic since the second half of the 16th century.
L. B. Salikhova
doaj +1 more source
Debt Overhang and Barter in Russia [PDF]
In this paper we study, both theoretically and empirically, the relationship between barter and the indebtedness of Russian firms. We build a model in which a firm uses barter to protect its working capital against outside creditors even when barter ...
Igor Makarov +2 more
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Barter Economies and Centralized Merchants [PDF]
The main goal of this essay is to analyze the emergence of a barter economy, and the rise of centralized merchants and a barter redistribution system out of a primitive barter system.
Jose Noguera
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Model‐Inversion‐Resistant Physical Unclonable Neural Network Using Vertical NAND Flash Memory
Advanced Science, EarlyView.Schematic and key features of the proposed forward‐forward physical unclonable neural network (FF‐PUNN), incorporating a concealable physical unclonable function (PUF) layer and forward‐forward (FF) learning. ABSTRACT The growing use of neural networks in privacy‐sensitive applications necessitates architectures that inherently protect both data and ...
Sung‐Ho Park +8 more
wiley +1 more source
Les « clubs de troc » argentins : un microcosme monétaire Credito dépendant du macrocosme Peso
Revue de la Régulation, 2010 This paper examines a concrete case of local currency systems, the Argentine “barter clubs” developed from 1995. “Barter club” denotes a place of market exchange, within which economic transactions are paid for using an internal paper currency, the ...
Pepita Ould-Ahmed
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Barter, Credit, and Welfare: A theoretical inquiry into the barter phenomenon in Russia [PDF]
This paper develops a model to investigate the welfare implications of barter in Russia and other transition economies during the 1990s. We argue that barter is a welfare-improving phenomenon that acts as a defense mechanism against monetary instability.
José Noguera, Susan J. Linz
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Proximity Ferroelectricity in Compositionally Graded Structures
Advanced Electronic Materials, EarlyView.We perform the finite element modeling of the polarization switching in the compositionally graded AlN‐Al1‐xScxN and ZnO‐Zn1‐xMgxO structures and reveal the switching of spontaneous polarization in the whole structure in all these systems. The coercive field to switch is significantly lower than the electric breakdown field of the unswitchable AlN and ...
Eugene A. Eliseev +4 more
wiley +1 more source