Results 21 to 30 of about 10,290,974 (193)

Double Attention for Multi-Label Image Classification

open access: yesIEEE Access, 2020
Multi-label image classification is an essential task in image processing. How to improve the correlation between labels by learning multi-scale features from images is a very challenging problem.
Haiying Zhao   +3 more
doaj   +1 more source

Sparse Channel Estimation for Massive MIMO-OFDM Systems Over Time-Varying Channels

open access: yesIEEE Access, 2018
For downlink orthogonal frequency division multiplexing-based massive multiple-input-multiple-output transmission over the time-varying channel, channel estimation is very challenging due to numerous channel coefficients to be estimated.
Qibo Qin, Lin Gui, Bo Gong, Sheng Luo
doaj   +1 more source

Pilot study design.

open access: yes, 2021
Pilot study design.
Kim Engler (8480475)   +11 more
core   +1 more source

Pilot Design based on Binary Code Multi-pilot Search

open access: yesGuangtongxin yanjiu, 2022
To solve the sparse channel estimation problem in Orthogonal Frequency Division Multiplexing (OFDM) systems, this paper presents a pilot design algorithm based on multi-pilot parallel searching and binary coding.
HUANG Hai-yan   +4 more
doaj   +3 more sources

City of Pilot Rock transportation system plan : Final report [PDF]

open access: yes, 2001
100 pp. Maps and figures included. Published June 2001. Received from ODOT January 2, 2007.The City of Pilot Rock Transportation System Plan (TSP) guides the management of existing transportation facilities and the design and implementation of future ...
David Evans and Associates   +1 more
core   +1 more source

A Bayesian approach to pilot-pivotal trials for bioequivalence assessment

open access: yesBMC Medical Research Methodology, 2023
Background To demonstrate bioequivalence between two drug formulations, a pilot trial is often conducted prior to a pivotal trial to assess feasibility and gain preliminary information about the treatment effect. Due to the limited sample size, it is not
Duo Lv   +4 more
doaj   +1 more source

Social Functioning Within the First Years After Pediatric Brain Tumor Diagnosis and the Relationship With Family Psychosocial Risk

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survivors of pediatric brain tumors (PBTs) can experience long‐term social difficulties, impacting quality of life. Beyond medical and environmental factors, family psychosocial risk may play a role in social outcomes by shaping the caregiving environment and may provide intervention options.
Renske H. Houben   +4 more
wiley   +1 more source

Development of a Virtual Fit Analysis Method for an Ergonomic Design of Pilot Oxygen Mask

open access: yesApplied Sciences, 2021
In the ergonomic design of wearable products such as an oxygen mask, systematic design methods including the analysis of anthropometric information, evaluation of fit, and product design need to utilize 3D human scan data.
Wonsup Lee   +4 more
doaj   +1 more source

Referral Patterns and Diagnostic Timeliness in Pediatric Cancer: A Hospital‐Based Study in Indonesia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Timely diagnosis and treatment are critical for improving survival among children with cancer. In low‐ and middle‐income countries (LMICs), delays are common and may be influenced by fragmented referral pathways and diagnostic limitations.
Nur Melani Sari   +5 more
wiley   +1 more source

A Novel Method of Trajectory Optimization for Underwater Gliders Based on Dynamic Identification

open access: yesJournal of Marine Science and Engineering, 2022
For underwater gliders (UGs), high trajectory accuracy is an important factor in improving the observation of ocean phenomena. In this paper, a novel method of trajectory optimization is proposed to increase the trajectory accuracy of UGs, which is ...
Ming Yang   +4 more
doaj   +1 more source

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