Results 11 to 20 of about 7,539,705 (335)

Dynamic Channel Modeling for an Indoor Scenario at 23.5 GHz

open access: yesIEEE Access, 2015
In this paper, the dynamic channel characteristics at 23.5 GHz in an indoor scenario are investigated according to measurement and deterministic simulation.
Nan Zhang   +6 more
doaj   +1 more source

Virtual simulation of the heat exchanging process of a lithium-ion battery in a vehicle [PDF]

open access: yesE3S Web of Conferences
The article describes a virtual (numerical) model of part of the temperature control system of a lithium-ion battery developed for subsequent modeling of the required operating conditions as part of a vehicle.
Gaslov Sergey   +2 more
doaj   +1 more source

Federated Learning for Precoding Design in Cell-Free Massive MIMO Systems

open access: yesIEEE Open Journal of the Communications Society, 2023
Cell-free massive MIMO precoding leverages the large number of antennas and dense access point (AP) deployment to concurrently serve multiple users in a wide coverage area, thus promising efficient interference mitigation and significant network capacity
Dong Wang   +3 more
doaj   +1 more source

Sheet-metal press line parameter tuning using a combined DIRECT and Nelder-Mead algorithm [PDF]

open access: yes, 2011
It is a great challenge to obtain an efficient algorithm for global optimisation of nonlinear, nonconvex and high dimensional objective functions. This paper shows how the combination of DIRECT and Nelder-Mead algorithms can improve the efficiency in the
Bengt Lennartson   +4 more
core   +1 more source

Algorithm for efficient symbolic analysis of large analogue circuits [PDF]

open access: yes, 1994
An algorithm is presented that generates simplified symbolic expressions for the small-signal characteristics of large analogue circuits. The expressions are approximated while they are computed, so that only the most significant terms are generated ...
Fernández Fernández, Francisco Vidal   +4 more
core   +1 more source

What did you see? A study to measure personalization in Google’s search engine

open access: yesEPJ Data Science, 2019
In this paper we present the results of the project “#Datenspende” where during the German election in 2017 more than 4000 people contributed their search results regarding keywords connected to the German election campaign.
Tobias D. Krafft   +2 more
doaj   +1 more source

Nondeterministic Algorithms [PDF]

open access: yesJournal of the ACM, 1967
Programs to solve combinatorial search problems may often be simply written by using multiple-valued functions. Such programs, although impossible to execute directly on conventional computers, may be converted in a mechanical way into conventional backtracking programs.
openaire   +1 more source

A DCA‐based sparse coding for video summarization with MCP

open access: yesIET Image Processing, 2023
Video summarization offers a summary version that conveys the primary information of a longer video. The main challenges of video summarization are related to keyframe extraction and saliency mapping.
Yujie Li   +3 more
doaj   +1 more source

Algorithm for Mesoscopic Advection-Diffusion [PDF]

open access: yes, 2018
In this paper, an algorithm is presented to calculate the transition rates between adjacent mesoscopic subvolumes in the presence of flow and diffusion.
Makrakis, Dimitrios, Noel, Adam
core   +2 more sources

Trading off Network Density with Frequency Spectrum for Resource Optimization in 5G Ultra-Dense Networks

open access: yesTechnologies, 2018
To effectively increase the capacity in 5G wireless networks requires more spectrum and denser network deployments. However, due to the increasing network density, the coordination of network and spectrum management becomes a challenging task both within
Georgios P. Koudouridis, Pablo Soldati
doaj   +1 more source

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