Results 11 to 20 of about 20,885 (197)

Research on mine personnel positioning method based on time range

open access: yesGong-kuang zidonghua, 2018
Four kinds of mine personnel positioning methods based on time range were researched, namely TOA, TWR, SDS-TWR and TDOA positioning methods, they are less influenced by roadway environment and suitable for mine personnel precise positioning.TOA ...
SUN Zhexing
doaj   +1 more source

ToA Node Distance Estimation Enhancement in MANET Localization Algorithm Based on Cooperative Trilateration

open access: yesAdvances in Electrical and Electronic Engineering, 2012
This paper provides a brief survey of the Time of Arrival (ToA) ranging method often used in the Range-based localization for node distance estimation. It is focused especially on the Non Line-of-Sight (NLoS) channel identification – one of the dominant ...
Vladimir Cipov, Lubomir Dobos, Jan Papaj
doaj   +1 more source

Time-Optimal Adaptation in Metabolic Network Models

open access: yesFrontiers in Molecular Biosciences, 2022
Analysis of metabolic models using constraint-based optimization has emerged as an important computational technique to elucidate and eventually predict cellular metabolism and growth.
Markus A. Köbis   +2 more
doaj   +1 more source

Global Sensitivity Analysis of the SCOPE Model in Sentinel-3 Bands: Thermal Domain Focus

open access: yesRemote Sensing, 2019
Sentinel-3 satellite has provided simultaneous observations in the optical (visible, near infrared (NIR), shortwave infrared (SWIR)) and thermal infrared (TIR) domains since 2016, with a revisit time of 1−2 days.
Egor Prikaziuk, Christiaan van der Tol
doaj   +1 more source

Bilateral or unilateral tubo-ovarian abscess: exploring its clinical significance

open access: yesBMC Women's Health, 2023
Objectives To assess the characteristics of patients with unilateral and bilateral tubo-ovarian abscess (TOA). Methods Women diagnosed with TOA during 2003–2017 were included in this retrospective cohort study.
Yael Yagur   +7 more
doaj   +1 more source

Teamwork Optimization Algorithm: A New Optimization Approach for Function Minimization/Maximization

open access: yesSensors, 2021
Population-based optimization algorithms are one of the most widely used and popular methods in solving optimization problems. In this paper, a new population-based optimization algorithm called the Teamwork Optimization Algorithm (TOA) is presented to ...
Mohammad Dehghani, Pavel Trojovský
doaj   +1 more source

The management of tubo-ovarian abscesses associated with appendicitis

open access: yesJournal of Mind and Medical Sciences, 2021
A relatively uncommon medical complication, the tubo-ovarian abscess (TOA) can result from ascending pelvic infection in the female genital tract. The paper aims at exploring the characteristics of patients with TOA and at comparing the outcomes of the ...
Lucian Serbanescu   +4 more
doaj   +1 more source

Motion of Floating Caisson with Extended Bottom Slab under Regular and Irregular Waves

open access: yesJournal of Marine Science and Engineering, 2021
Floating caissons may oscillate primarily due to ocean waves during towing operations. Reducing the oscillation based on the extension part (footing) of the bottom slab of the caissons can efficiently increase the safety of towing maneuvers. However, the
Tomoaki Nakamura   +5 more
doaj   +1 more source

The erosion of ambiguity tolerance and sustainment of perfectionism in undergraduate medical training: results from multiple samplings of a single cohort

open access: yesBMC Medical Education, 2020
Background Medicine is a field that is simultaneously factual and ambiguous. Medical students have their first exposure to full time clinical practice during clerkship.
Silvio Ndoja   +3 more
doaj   +1 more source

Involvement of Adenosine A2a Receptor in Intraocular Pressure Decrease Induced by 2-(1-Octyn-1-yl)adenosine or 2-(6-Cyano-1-hexyn-1-yl)adenosine

open access: yesJournal of Pharmacological Sciences, 2005
The aim of the present study is to clarify the mechanism for the decrease in intraocular pressure by 2-alkynyladenosine derivatives in rabbits. The receptor binding analysis revealed that 2-(1-octyn-1-yl)adenosine (2-O-Ado) and 2-(6-cyano-1-hexyn-1-yl ...
Takashi Konno   +5 more
doaj   +1 more source

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