Results 1 to 10 of about 1,791,907 (298)

In-plane compression property of S-shaped reinforced honeycomb cores

open access: yesMaterials & Design, 2023
Honeycomb structures serve as the core of sandwich structures in various industries, such as aerospace and rail transit. In this study, a novel design was introduced where hexagonal honeycomb cores were flattened in specific areas to form S-shaped ...
Xin Zhou   +4 more
doaj   +1 more source

Dependence of the service speed on the provision of transit trains with locomotives on the Koshta — Babayevo railway section

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2023
Introduction. Today, ensuring stable train traffic remains relevant, particularly on the heavy traffic lines of the Russian Railways network. Solutions to this problem largely involve the development of polygon technologies based on harmonised use of the
M. I. Mekhedov   +2 more
doaj   +1 more source

Prediction of Service Performance Based on Physical Strength in Elite Junior Tennis Players

open access: yesFrontiers in Psychology, 2022
In tennis, service requires a variety of complicated movements. Given the importance of taking the initiative to obtain points in a tennis match, it is crucial to make full use of speed and spin rate of service.
Nahoko Koya   +2 more
doaj   +1 more source

Beneficial Effects of Motor Imagery and Self-Talk on Service Performance in Skilled Tennis Players

open access: yesFrontiers in Psychology, 2022
This research aim to investigate the effects of motor imagery (MI), focused on the trajectory of the ball and the target area, and self-talk (motivational function) before the actual strike on the performance of the service in skilled tennis players ...
Nicolas Robin   +3 more
doaj   +1 more source

Choice of the interval traffic control system in terms of increasing demands for the coverage of forecast traffic volumes

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2022
Introduction. The authors view methodology disadvantages for the calculating the existent traffic capacity of the single track analytically by defining the limiting space interval.
N. V. Kornienko, M. I. Mekhedov
doaj   +1 more source

ONLINE MEAL ORDERING SERVICE QUALITY AND DELIVERY SPEED: OPPORTUNITIES FOR RESTAURANT OPERATORS? [PDF]

open access: yesAnnals of the Polish Association of Agricultural and Agribusiness Economists, 2021
This study examines the importance customers attach to online meal service quality and delivery speed using data collected in 2017. The structured questionnaire probed for views on meal delivery services and socio-demographic information. The respondents
Weijun Liu, Wojciech J. Florkowski
doaj   +1 more source

Poisson Hail on a Hot Ground [PDF]

open access: yes, 2011
We consider a queue where the server is the Euclidean space, and the customers are random closed sets (RACS) of the Euclidean space. These RACS arrive according to a Poisson rain and each of them has a random service time (in the case of hail falling on ...
Baccelli, Francois, Foss, Sergey
core   +1 more source

Design and evaluation of a connection management mechanism for an ATM-based connectionless service [PDF]

open access: yes, 1996
The Asynchronous Transfer Mode (ATM) has been developed as a connection-oriented technique for the transfer of fixed-size cells over high-speed networks. Many applications, however, require a connectionless network service.
Haverkort, Boudewijn R., Heijenk, Geert
core   +11 more sources

Probabilistic wind speed forecasting in Hungary [PDF]

open access: yes, 2013
Prediction of various weather quantities is mostly based on deterministic numerical weather forecasting models. Multiple runs of these models with different initial conditions result ensembles of forecasts which are applied for estimating the ...
Baran, Sándor   +2 more
core   +2 more sources

Wear issues of pumping units [PDF]

open access: yesE3S Web of Conferences, 2021
The article presents the possibility of increasing the service life of pumping units. Particular attention is paid to the regulation of the speed of rotation of the pumping unit. There are some assumptions in the mathematical model that do not affect the
Ishnazarov Oybek   +4 more
doaj   +1 more source

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