-
2261
La professionnalisation des moniteurs d’atelier en Établissement et Service d’Aide par le Travail (ESAT) : un éclairage par la recherche-intervention
Published 2018-12-01“…The analysis highlights the main characteristics of the processes of structuring and reinvention as well as the importance held by the political logic, polarized by the institution and consisting in producing arbitrations in terms of piloting, strategies and organization of the work.…”
Get full text
Article -
2262
Ouverture sociale : intérêts et limites d’une politique ambitieuse
Published 2022-08-01“…The results of the survey carried out among three categories of actors involved (pilots, students, pedagogical team) lead to questioning the relevance of the model of meritocratic equality of opportunity on which most current initiatives are based.…”
Get full text
Article -
2263
Putting Inclusion into Practice: Five Commitments Toward Equity in Teaching
Published 2025-01-01“…From these interviews and personal reflections on teaching, the author piloted and refined several teaching practices to improve the accessibility and inclusion in her own classroom. …”
Get full text
Article -
2264
Novel restructuring method for CP-based LS channel estimation in OFDM system
Published 2013-03-01“…The restructuring method was based on the relationship of CPFS and comb-pilots which made a higher LS channel estimation precision. …”
Get full text
Article -
2265
Operationalising routinely collected patient data in research to further the pursuit of social justice and health equity: a team-based scoping review
Published 2025-01-01“…Application of inclusion and exclusion criteria was piloted on 5% of the papers by three researchers. …”
Get full text
Article -
2266
Organizing an in-class hackathon to correct PDF-to-text conversion errors of 1.0
Published 2020-09-01“…Extracting text from multi-column biomedical documents such as Genomics & Informatics is known to be notoriously difficult. The hackathon was piloted as part of a coding competition of the ELTEC College of Engineering at Ewha Womans University in order to enable researchers and students to create or annotate their own versions of the Genomics & Informatics corpus, to gain and create knowledge about corpus linguistics, and simultaneously to acquire tangible and transferable skills. …”
Get full text
Article -
2267
Channel estimation for OFDM system based on deep learning
Published 2023-12-01“…An efficient channel estimation model based on deep learning was proposed for the problems of inter-carrier interference and inter-symbol interference in 5G system signal reception.The estimated channels were obtained through a preliminary estimation at the pilots.And they were treated as low resolution images containing noise, which were input into the channel estimation model.By learning the mapping relationship between the low resolution images and the high resolution images, the noise in input channels was removed, and the high-resolution channel images were restored to obtain the entire channel state information eventually.The simulation results show that the model not only continues the advantages of traditional attention mechanisms in suppressing redundant information, reduces computational overhead, but also achieves good accuracy and robustness, and has good estimation performance for various channels.…”
Get full text
Article -
2268
Estimation scheme for parameters of wireless channel model in OFDM communication systems
Published 2007-01-01“…The conventional channel estimator in OFDM system was designed to cope with the worst-case channel condi-tion,thus performance degradation can be induced due to the imperfect channel estimation.Though wiener filter based on the minimum mean-squared error(MMSE) is the optimal linear estimator,it requires the prior information of transmis-sion channel.In order to select the near optimal prestored channel interpolation filter coefficients,three channel parame-ters detecting methods including maximum multipath delay,Doppler frequency and SNR based on the time and fre-quency correlation functions of the channel,the Euclidean distance of hard-decision in pilots position respectively,were proposed.The method proposed with low complexity allows an efficient implementation for adaptive channel estimation algorithm as well as multi-user OFDM systems.…”
Get full text
Article -
2269
The plane: Materiality, air, and environmental-health “heterotopia”
Published 2025-12-01“…Exploring interactions and relationships between pilots, air crew, passengers, and civilians on the one hand, and the plane on the other, the article unveils how the meaning of the plane is constructed. …”
Get full text
Article -
2270
Time-varying channel estimation for LTE uplink SC-FDMA system with multi-user
Published 2014-09-01“…A novel transform-domain based time-varying channel estimation method is proposed for the long term evolu-tion (LTE) uplink single carrier-frequency division multiple access (SC-FDMA) systems with multi-user.In the transform domain,the channel parameters of the two block pilots were firstly estimated,then the decision-directed (DD) based non-linear interpolation method was employed to estimate the channel parameters of the data symbols.To convenient equalization in the frequency domain,the transform expression of the transform-domain channel and frequency-domain channel was derived,by which the channel estimation in the frequency domain could be directly obtained.Simulation re-sults show that the performance of the proposed method is much better than those of the available methods,and the pro-posed method has a low computational complexity.…”
Get full text
Article -
2271
Improved and efficient EM channel estimation algorithm for MIMO-OFDM systems
Published 2011-01-01“…For multiple-input multiple-output with orthogonal frequency division multiplexing(MIMO-OFDM) systems,the error floor(EF) phenomenon at high signal noise rate(SNR) was induced by the expectation maximum(EM) channel estimation algorithm.In addition,the data transmission efficiency was declined obviously with the increasing number of transmit antennas.According to these problems,an improved and efficient EM channel estimation algorithm was pro-posed.Firstly,an accurate and equivalent signal model was introduced to derive a modified EM algorithm,which im-proved the estimation performance at high SNR.Next,to enhance the data transmission efficiency and further the esti-mate performance of the proposed algorithm,phase orthogonal pilots sequences and joint estimation were carried out over multiple OFDM symbols respectively.Simulation results show that the proposed algorithm has better estimation performance and higher data transmission efficiency.…”
Get full text
Article -
2272
Planning and support materials in teaching story comprehension from the interbehavioral approach
Published 2017-12-01“…Subsequently it underwent a process of piloting and revision by experts to prove the pertinence of the planning and precisions for its implementation. …”
Get full text
Article -
2273
Design and implementation of online learning assisted intelligent receiver
Published 2024-01-01“…To address the issue of reliable communication under complicated scenarios, an online learning-assisted intelligent OFDM receiver was proposed.The variations of the channel environment could be precepted by the receiver, and the optimal parameters of the receiver under the current scenario were obtained by collecting data and training online.In the channel estimation module of the OFDM system, a performance comparator based on the mean square error of noisy channel samples was designed as the indicator of channel environment variations.To accelerate the online training progress, a lightweight neural network structure was applied.The proposed method was further implemented and verified based on universal software radio peripherals.The numerical simulation and over-the-air experimental results demonstrate that the proposed receiver can perceive and adapt to new environments effectively, and outperforms existing machine learning methods in terms of receiving performance and convergence rate with a limited number of pilots.…”
Get full text
Article -
2274
A New Method for Optimizing the Cabin Layout of Manned Submersibles
Published 2020-01-01“…In order to reduce the misoperation of submersible pilots in the complex environment of deep sea and improve human reliability, it is a very important method to optimize the cabin space of manned submersible. …”
Get full text
Article -
2275
Les enjeux de l’implantation de l’approche neurolinguistique, une nouvelle méthode d’apprentissage du français langue seconde auprès d’élèves allophones en contexte scolaire...
Published 2021-11-01“…The main purpose of this article is to present the qualitative results of the first year of the project, which has been piloted since 2019 and during which the NLA has been applied in three introductory classes for allophone pupils.…”
Get full text
Article -
2276
The Comparative Effect of Teaching Collocations through Literary vs. Non-Literary Content on EFL Learners
Published 2019-03-01“…They were selected based on their scores on the Preliminary English Test (PET) and a collocation test, developed and piloted in advance. The selected participants were randomly divided into two experimental groups. …”
Get full text
Article -
2277
Implications des consultants qualité dans l’institutionnalisation du nouveau mode de pilotage du système éducatif chilien
Published 2021-09-01“…The results of the research show how these consultants mobilize the technical objects that constitute their « toolbox » to influence the involvement of school leaders and their teams in the process of institutionalizing the piloting through the quality of the education system. …”
Get full text
Article -
2278
Using Social Norms to Increase Behavior Change in Sustainable Landscaping
Published 2014-06-01“…These strategies may be piloted on a small scale, modified if necessary, and then implemented on a large scale and further evaluated. …”
Get full text
Article -
2279
The Comparative Effect of Teaching Collocations through Literary vs. Non-Literary Content on EFL Learners
Published 2019-03-01“…They were selected based on their scores on the Preliminary English Test (PET) and a collocation test, developed and piloted in advance. The selected participants were randomly divided into two experimental groups. …”
Get full text
Article -
2280
Enhancing Language Proficiency and Critical Thinking: Implementation of the Capstone Project in the EFL Context– Students’ Perspectives
Published 2024-09-01“…It also aimed to explore whether the project piloting is beneficial or detrimental to be implemented in the future. …”
Get full text
Article