Search results for "Performance analysis"
showing 10 items of 33 documents
Want to Impact Physical, Technical, and Tactical Performance during Basketball Small-Sided Games in Youth Athletes? Try Differential Learning Beforeh…
2020
This study aimed to analyze the acute effect of small-sided games, based on differential learning, on the physical, technical, and positioning performance of young basketball players. Eight basketball players under 13 (U13) participated in this study. A total of eight sessions involving half-court small-sided games (4 sets ×
Analysis of Performance Parameters of the Smash in Male and Female Professional Padel
2020
The aim of this study was to analyze the distribution and effectiveness of the different types of smash in professional padel according to the area and direction of the strokes and the gender. Through systematic observation, 1.015 smashes from eight finals (four men&rsquo
Efectos de un programa de formulación de objetivos y moldeamiento del pase en jóvenes jugadores de fútbol
2015
Se realizó un estudio cuasi-experimental con el propósito de analizar los efectos de un programa de entrenamiento de 4 semanas de duración para la mejora del pase en el fútbol a partir de la formulación progresiva de objetivos basados en la creación de esquemas mentales, y la aplicación de la técnica de moldeamiento mediante el feedback aportado a los jugadores. En el estudio participaron un total de 13 jugadores juveniles de fútbol pertenecientes a un equipos de categoría de formación del Club Real Murcia SAD, con una media de edad 15.67 (DE = 0.35). Se evaluaron las siguientes variables psicológicas: ansiedad cognitiva, autoconfianza y percepción de competencia en el pase. Se midieron asi…
Making Every "Point" Count: Identifying the Key Determinants of Team Success in Elite Men’s Wheelchair Basketball
2019
Wheelchair basketball coaches and researchers have typically relied on box score data and the Comprehensive Basketball Grading System to inform practice, however, these data do not acknowledge how the dynamic perspectives of teams change, vary and adapt during possessions in relation to the outcome of a game. Therefore, this study aimed to identify the key dynamic variables associated with team success in elite men’s wheelchair basketball and explore the impact of each key dynamic variable upon the outcome of performance through the use of binary logistic regression modelling. The valid and reliable template developed by Francis, Owen and Peters (2019) was used to analyse video footage in S…
Modeling and Performance Analysis of Channel Assembling in Multichannel Cognitive Radio Networks With Spectrum Adaptation
2012
[EN] To accommodate spectrum access in multichannel cognitive radio networks (CRNs), the channel-assembling technique, which combines several channels together as one channel, has been proposed in many medium access control (MAC) protocols. However, analytical models for CRNs enabled with this technique have not been thoroughly investigated. In this paper, two representative channel-assembling strategies that consider spectrum adaptation and heterogeneous traffic are proposed, and the performance of these strategies is evaluated based on the proposed continuous-time Markov chain (CTMC) models. Moreover, approximations of these models in the quasistationary regime are analyzed, and closed-fo…
Adaptive Service Offloading for Revenue Maximization in Mobile Edge Computing With Delay-Constraint
2019
Mobile Edge Computing (MEC) is an important and effective platform to offload the computational services of modern mobile applications, and has gained tremendous attention from various research communities. For delay and resource constrained mobile devices, the important issues include: 1) minimization of the service latency; 2) optimal revenue maximization; 3) high quality-of-service (QoS) requirement to offload the computational service offloading. To address the above issues, an adaptive service offloading scheme is designed to provide the maximum revenue and service utilization to MEC. Unlike most of the existing works, we consider both the delay-tolerant and delay-constraint services i…
Refinements on IEEE 802.11 Distributed Coordination Function Modeling Approaches
2010
With the popularity of the IEEE 802.11 standards, many analytical saturation throughput studies for the distributed coordination function (DCF) have been reported. In this paper, we outline a number of issues and criticalities raised by previously proposed models. In particular, a careful look at backoff counter decrement rules allows us to conclude that, under saturation conditions, the slot immediately following a successful transmission can be accessed only by the station (STA) that has successfully transmitted in the previous channel access. Moreover, due to the specific acknowledgment (ACK) timeout setting adopted in the standard, the slot immediately following a collision cannot be ac…
Out-of-Band Signaling Scheme for High Speed Wireless LANs
2007
In recent years, the physical layer data rate provided by 802.11 Wireless LANs has dramatically increased thanks to significant advances in the modulation and coding techniques employed. However, previous studies show that the 802.11 MAC operation, namely the distributed coordination function (DCF), represents a limiting factor: the throughput efficiency drops as the channel bit rate increases, and a throughput upper limit does indeed exist when the channel bit rate goes to infinite high. These findings indicate that the performance of the DCF protocol will not be efficiently improved by merely increasing the channel bit rate. This paper shows that the DCF performance may significantly bene…
Men's doubles professional tennis on hard courts: Game structure and point ending characteristics
2019
Despite the great tradition and importance of the doubles game in professional tennis, no literature has analysed to date the performance of professional players. Therefore, the information on the characteristics of the game, or the tactics related to how the points are won in doubles play is scarce. The objective of this study has been to describe the basic characteristics of the structure of the doubles game, and to establish how the points finish in doubles professional tennis played on hard courts. Thirty-four ATP doubles matches played in 2018 were analysed, which included a total of 40 professional players. As per the game structure, the results showed that, in comparison to the singl…
“Google Web Vitals” pielietojums un izpēte
2022
2020. gada novembrī uzņēmums “Google” paziņoja, ka pievienos papildus faktoru savam tīmekļu lapas meklētāj servisa lapu ranžēšanās algoritmam – (GCWV) Google Core Web Vitals testa rezultātus. Testa būtība ir veikt novērojumus par jebkuras tīmekļa lapas veiktspēju un idejiski meklētāj servisā kārtot lapas augstāk ar labāku veiktspēju. Darbā tiek apskatītas Google Core Web Vitals testa metrikas un citas populāras tīmekļa veiktspējas metrikas, to ietekmējošie faktori un biežāk veiktie optimizācijas darbi. Praktiskajā daļā tika veikti optimizācijas darbi autora veidotai tīmekļa lapai. Rezultātā tika gūts metriku rezultātu uzlabojums par 60%. Darbu noslēdz rezultātu un secinājumu nodaļas.