Results 81 to 90 of about 2,173,338 (324)

Positive Definite Operator Functions and Sesquilinear Forms [PDF]

open access: yes, 2014
Due to the fundamental works of T. Ando, W. Szyma\'nski, F. H. Szafraniec, and many others it is well known that sesquilinear forms play an important role in dilation theory.
Titkos, Tamás
core   +1 more source

Fundamental Challenges, Physical Implementations, and Integration Strategies for Ising Machines in Large‐Scale Optimization Tasks

open access: yesAdvanced Electronic Materials, EarlyView.
Ising machines are emerging as specialized hardware solvers for computationally hard optimization problems. This review examines five major platforms—digital CMOS, analog CMOS, emerging devices, coherent optics, and quantum systems—highlighting physics‐rooted advantages and shared bottlenecks in scalability and connectivity.
Hyunjun Lee, Joon Pyo Kim, Sanghyeon Kim
wiley   +1 more source

Definition: Astereognosia

open access: yesCortex, 2020
International ...
Osiurak, François, Rossetti, Yves
openaire   +3 more sources

Asymmetric Multi‐Site Ion Exchange in Porous Carbon Electrodes

open access: yesAdvanced Energy Materials, EarlyView.
A lognormal‐distribution 2D EXSY NMR framework uncovers the full spectrum of ion dynamics in hierarchical porous carbons, bridging fast surface exchange and confined in‐pore transport—establishing structure–transport relationships for next‐generation energy storage, gas storage, and ion removal materials.
Henry R. N. B. Enninful   +5 more
wiley   +1 more source

Multidimensional negative definite functions on the product of commutative hypergroups

open access: yesKuwait Journal of Science, 2016
The main aim of this paper is to give the integral representations for the so called multidimensional negative definite functions defined on the product of commutative hypergroups.
Hossam A Ghany
doaj  

On Log-Definite Tempered Combinatorial Sequences

open access: yesMathematics
This article is concerned with qualitative and quantitative refinements of the concepts of the log-convexity and log-concavity of positive sequences.
Tomislav Došlić, Biserka Kolarec
doaj   +1 more source

Circularity, Sustainability, and the Quality of Coffee Sold via Vending Machines: What Do Italian Consumers Prefer?

open access: yesAgribusiness, EarlyView.
ABSTRACT Vending is an important sector in the daily lives of many people, and coffee is the most frequently consumed product in the European market. Like many other sectors, vending is responding to the challenge of sustainable development by taking various actions, such as offering increasingly ecologically sound coffee while maintaining/improving ...
Alberto Bertossi   +2 more
wiley   +1 more source

“Definite Associative Deixis”: Between Referential and Attributive Readings

open access: yesDiscours
This paper investigates different readings of definite descriptions within “definite associative deixis”. The term itself was proposed in Dvořák (2023) to refer to Hawkins’ “larger situation uses based on general knowledge” (1978).
Jan Dvořák
doaj   +1 more source

Equivalent definitions of positive definiteness [PDF]

open access: yesPacific Journal of Mathematics, 1984
Maserick, P. H., Szafraniec, F. H.
openaire   +2 more sources

Climate Change Mitigation in the Dairy Sector: Uncovering Heterogeneity Through Eco‐Efficiency Clubs

open access: yesAgribusiness, EarlyView.
ABSTRACT Combining climate change goals with economic targets is crucial for the dairy sector, which is a significant contributor to agricultural greenhouse gas (GHG) emissions worldwide. In this paper, we assess economic and climate change implications of dairy production with panel data of Irish dairy farms from 2013 to 2021.
Doris Läpple   +2 more
wiley   +1 more source

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