Results 41 to 50 of about 2,491,773 (298)

Forecasting the Dialysis Burden in Japan: Validation‐Based Projections of Prevalence and Incidence Through 2050

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin, Berrak Itır Aylı, Nüket Paksoy   +2 more
wiley   +1 more source

A Simplified Pointing Model for Alt-Az Telescopes

Applied Sciences, 2023
The telescope pointing model plays a crucial role in characterizing and explaining the inaccuracies in the telescope’s pointing. It uses mathematical models to express these errors and suggests methods to calibrate and rectify them.
Yong Zhao, Yingqiang Wang, Fei He, Zhonghua Yao, Zhaojin Rong, Yong Wei   +5 more
doaj   +1 more source

Research on the Initial Orientation Technology of the View Axis for Underwater Laser Communication Dynamic Platforms Based on Coordinate Transformation Matrix Positioning Model

Photonics
To address the challenge of directly applying space laser communication systems to dynamic underwater environments, this paper integrates coordinate transformation matrices with underwater positioning systems, proposing an ultra-short baseline (USBL ...
Jun Ma, Yunjie Teng, Yang Liu, Mingyang Zhang, Cheng Qiu, Hao Qin, Yanpu Li   +6 more
doaj   +1 more source

Learning a Path from Real Navigation: The Advantage of Initial View, Cardinal North and Visuo-Spatial Ability

Brain Sciences, 2020
Background: Spatial cognition research strives to maximize conditions favoring environment representation. This study examined how initial (egocentric) navigation headings interact with allocentric references in terms of world-based information (such as ...
Veronica Muffato, Chiara Meneghetti
doaj   +1 more source

Analytical Accuracy Evaluation Of Fixed-Point Systems

, 2007
Publication in the conference proceedings of EUSIPCO, Poznan, Poland ...
Rocher, Romuald, Ménard, Daniel, Sentieys, Olivier, Scalart, Pascal   +3 more
openaire   +4 more sources

Accuracy of Point Precipitation Measurements

Hydrology Research, 1980
The normal-exposed Hellmann raingauge only catches about 85% of the true precipitation on yearly basis. This is mainly due to aerodynamic effects. A statistical model analysing the ratio of the daily amounts of precipitation measured at ground level and at standard height is set up for describing this influence.
Henning Madsen, Peter Allerup
openaire   +1 more source

Multi-level fine pointing test-bed for space applications [PDF]

, 2012
For space applications that need high accuracy pointing of the payload, fine pointing system is an indispensable tool. To reach high level of high accuracy pointing and tracking, proper synchronization between the attitude of the satellite and each stage
Bérard, Caroline, Vongsantivanich, Wasanchai, Defaÿ, François   +2 more
core  

Systematic reviews of diagnostic test accuracy

, 2008
More and more systematic reviews of diagnostic test accuracy studies are being published, but they can be methodologically challenging. In this paper, the authors present some of the recent developments in the methodology for conducting systematic ...
JJ Deeks, Cochrane Diagnostic Test Accuracy Working Group, C. Gatsonis, RUTJES, ANNE WILHELMINA SASKIA, D'AMICO, Roberto, MM Leeflang, PM Bossuyt   +6 more
core   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

FEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar, Xinqi Yan, Lucas F. Jansen Klomp, Stefano Schivo, Janine N. Post   +4 more
wiley   +1 more source

Error modeling and analysis of optomechanical platform based on multi-system theory

AIP Advances, 2020
The quality of camera imaging is of great significance in aerial photography and space target detection, especially in the fields of military reconnaissance and geographic resource telemetry.
Dongxue Wang, Zhanguo Li, Jieqiong Lin, Mingming Lu, Yingchun Li   +4 more
doaj   +1 more source