Results 21 to 30 of about 22,697 (259)

Reasonable Incomplete Myocardial Revascularization in Patients with Chronic Heart Failure and Reduced Left Ventricular Ejection Fraction

open access: yesУкраїнський журнал серцево-судинної хірургії, 2022
The aim. To evaluate the results of incomplete myocardial revascularization with percutaneous coronary intervention (PCI) in patients with ischemic cardiomyopathy and heart failure with reduced left ventricular ejection fraction based on the residual ...
Mariia V. Kucheriava   +1 more
doaj   +1 more source

The Potential of ICESat-2 to Identify Carbon-Rich Peatlands in Indonesia

open access: yesRemote Sensing, 2020
Peatlands in Indonesia are one of the primary global storages for terrestrial organic carbon. Poor land management, drainage, and recurrent fires lead to the release of huge amounts of carbon dioxide.
Anna Berninger, Florian Siegert
doaj   +1 more source

A spatio-temporal framework for modelling wastewater concentration during the COVID-19 pandemic

open access: yesEnvironment International, 2023
The potential utility of wastewater-based epidemiology as an early warning tool has been explored widely across the globe during the current COVID-19 pandemic.
Guangquan Li   +15 more
doaj   +1 more source

A boosted positioning model for miso VLC system under a shadowing scenario

open access: yesTạp chí Khoa học và Công nghệ, 2023
There are various positioning algorithms proposed for Visible Light Communication (VLC) which require at least three “alive” transmitters to locate the object’s position.
Dat Vuong, Tran The Son
doaj   +1 more source

利用中国北部连续重力站资料评估全球潮汐模型精度

open access: yesDizhen xuebao, 2021
为评估全球潮汐模型在我国潮汐改正中的适用性,本文首先对10个重力站2016—2018年的观测数据进行了精度评定,而后基于均方根、和方根、纬度依赖关系以及重力残差等指标对7个全球潮汐模型进行了精度评定。结果表明:10个重力站的一些评价指标达到甚至超越了早期超导重力仪,例如M2波潮汐因子的中误差普遍小于0.000 70,其中最高精度约为0.000 14,5个主要潮波的稳定度均≤0.001 5。在10个观测模型和7个全球潮汐模型中,DDW-NHi和M2001模型考虑了地球扁率的影响 ...
Jin Wei   +4 more
doaj   +1 more source

Steganography Based on Data Mapping and LSB Substitution With RSS Key Generation

open access: yesJurnal Elkomika, 2022
ABSTRAK Untuk menghindari pihak ketiga yang tidak berwenang, berbagai solusi keamanan telah dibuat untuk mengamankan kerahasiaan pesan atau informasi, salah satunya adalah steganografi.
MUHAMMAD TAUFIQ SUMADI   +2 more
doaj   +1 more source

Improved Performance of Model Fit Indices with Small Sample Sizes in Cognitive Diagnostic Models

open access: yesInternational Journal of Assessment Tools in Education, 2019
Selecting an appropriate cognitive diagnostic model (CDM) for data analysis is always challenging. Studies have explored several model fit indices for CDMs.
Ya-huei Yang, Hueying Tzou
doaj   +1 more source

Distributed filtering for delayed nonlinear system with random sensor saturation: a dynamic event-triggered approach

open access: yesSystems Science & Control Engineering, 2021
This paper is concerned with the distributed filtering problem for a class of delayed nonlinear systems with random sensor saturation (RSS) under a dynamic event-triggered mechanism. The nonlinear function is assumed to satisfy the Lipschitz condition. A
Zehao Li, Jun Hu, Jiaxing Li
doaj   +1 more source

Leveraging RSS Data For An Improved Radiolocation Estimation Algorithm Realization In LoRaWAN Using A Two-Tier Normalization

open access: yesJournal of Applied Science and Engineering, 2023
An attempt to further enhance the accuracy and reliability of M-iWMLR localization algorithm using a new weight matrix that was formulated with two-tier RSS data normalization is presented.
Colette E. Agbo   +2 more
doaj   +1 more source

RSS-Ratio for enhancing performance of RSS-based applications [PDF]

open access: yes2013 Proceedings IEEE INFOCOM, 2013
RSS (Received Signal Strength) has been widely utilized in wireless applications. It is, however, susceptible to environmental unknowns from both temporal and spatial domains. As a result, the fluctuation of RSS may degrade performance of RSS based applications.
Wei Cheng 0001   +4 more
openaire   +1 more source

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