Results 21 to 30 of about 271,289 (267)

A timely arrival for genomic medicine [PDF]

Genetics in Medicine, 2011
In this issue of GIM,1 we describe a young boy who presented with unusually aggressive inflammatory bowel disease refractory to medical and surgical treatment. To reach a diagnosis, we were compelled to use genomic technology that, at the time, was not a clinically validated test.
Alan N, Mayer, David P, Dimmock, Marjorie J, Arca, David P, Bick, James W, Verbsky, Elizabeth A, Worthey, Howard J, Jacob, David A, Margolis   +7 more
openaire   +2 more sources

Confined Quantum Time of Arrivals [PDF]

Physical Review Letters, 2004
We show that formulating the quantum time of arrival problem in a segment of the real line suggests rephrasing the quantum time of arrival problem to finding states that evolve to unitarily collapse at a given point at a definite time. For the spatially confined particle, we show that the problem admits a solution in the form of an eigenvalue problem ...
Galapon, Eric A., Caballar, Roland F., Bahague Jr, Ricardo T.   +2 more
openaire   +3 more sources

Research of underground positioning algorithm based on DOA and TDOA

Gong-kuang zidonghua, 2013
In view of problems that current underground positioning system is sensitive to environmental change and has low positioning accuracy, the paper introduced an underground positioning algorithm based on DOA and TDOA. The algorithm takes advantages of high
ZHAI Yan-rong, HUANG Huan, ZHANG Shen, MA Xiu-ping, LIU Wei, YOU Chun-xia   +5 more
doaj   +1 more source

Optimal Passive Source Localization for Acoustic Emissions

Entropy, 2021
Acoustic emission is a non-destructive testing method where sensors monitor an area of a structure to detect and localize passive sources of elastic waves such as expanding cracks.
Carlos A. Prete, Vítor H. Nascimento, Cássio G. Lopes   +2 more
doaj   +1 more source

Sensor Localization Using Time of Arrival Measurements in a Multi-Media and Multi-Path Application of In-Situ Wireless Soil Sensing

Inventions, 2021
The problem of localization of nodes of a wireless sensor network placed in different physical media (anchor nodes above ground and sensor nodes underground) is addressed in this article.
Herman Sahota, Ratnesh Kumar
doaj   +1 more source

A Comprehensive Survey on Short-Distance Localization of UAVs

Drones
The localization of Unmanned Aerial Vehicles (UAVs) is a critical area of research, particularly in applications requiring high accuracy and reliability in Global Positioning System (GPS)-denied environments.
Luka Kramarić, Niko Jelušić, Tomislav Radišić, Mario Muštra   +3 more
doaj   +1 more source

Acoustic Source Localization in Metal Plates Using BP Neural Network

Metals, 2023
This study introduces a methodology for detecting the location of signal sources within a metal plate using machine learning. In particular, the Back Propagation (BP) neural network is used.
Yingqi Huang, Can Tang, Wenfeng Hao, Guoqi Zhao   +3 more
doaj   +1 more source

Multipath-Assisted Ultra-Wideband Vehicle Localization in Underground Parking Environment Using Ray-Tracing

Sensors
In complex underground parking scenarios, non-line-of-sight (NLOS) obstructions significantly impede positioning signals, presenting substantial challenges for accurate vehicle localization.
Shuo Hu, Lixin Guo, Zhongyu Liu, Shuaishuai Gao   +3 more
doaj   +1 more source

Fast Joint Estimation of Time of Arrival and Angle of Arrival in Complex Multipath Environment Using OFDM

IEEE Access, 2018
Joint time of arrival (TOA) and angle of arrival (AOA) estimation based on a uniform circle array (UCA) involves problems, including high computational complexity in the multi-dimensional spectral search method and lack of applicability in coherent ...
Haiyun Xu, Yankui Zhang, Bin Ba, Daming Wang, Xiangzhi Li   +4 more
doaj   +1 more source

Sustained Therapeutic Efficacy of Intravenous Plasminogen Concentrate in Pediatric Patients With Type 1 Plasminogen Deficiency: An Analysis of Dosing Parameters and Clinical Outcomes

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Type 1 plasminogen deficiency (PLGD‐1) is an ultra‐rare autosomal recessive disorder caused by variants in the PLG gene and affects approximately 1.6 individuals per million. The condition is characterized by decreased plasminogen levels and impaired function, resulting in fibrin‐rich lesions on mucous membranes throughout the body.
Charles Nakar, Karen Thibaudeau, Mary Mathias, Heather McDaniel, Madlen Reschke, Klaus Tenbrock, Joseph M. Parker, Amy Shapiro   +7 more
wiley   +1 more source