Results 21 to 30 of about 2,001 (215)

Study on Two-Phase Mixing Inside Flow Focusing/Blurring Nozzle by Gray Distribution Analysis Method

open access: yesApplied Sciences, 2021
The application prospect of a flow focusing/blurring nozzle is broad but research on gas-liquid flow inside the nozzle is not comprehensive. The gas-liquid mixing inside the nozzle is difficult to study by visualization experiment, so this paper proposes
Jin Zhao   +3 more
doaj   +1 more source

Mixing and transient combustion processes of scramjet combustor with transverse injector and hypermixer

open access: yesCase Studies in Thermal Engineering, 2021
The supersonic mixing between the reactive injection with an airstream is an essential issue that determines the scramjet engine performance. The mixing and transient combustion processes under different equivalence ratios for both the transverse ...
Wubingyi Shen   +3 more
doaj   +1 more source

A Novel Source Number Enumeration Approach Based on Ensemble Learning and SEEMD

open access: yesIEEE Access
Empirical Mode Decomposition (EMD) is a widely adopted adaptive signal analysis method, particularly effective for source number estimation in non-stationary environments. It decomposes complex signals into a series of Intrinsic Mode Functions (IMFs) and
Zhu Cairong, Ge Shengguo, Xu Yihan
doaj   +1 more source

Daily lake-level time series spectral analysis using EMD, VMD, EWT, and EFD

open access: yesJournal of Water and Climate Change
This study investigates the dynamics of daily Urmia Lake level (ULL) changes using spectral analysis tools to discover fluctuating patterns in the ULL series.
Farhad Alizadeh, Kiyoumars Roushangar
doaj   +1 more source

Orbital Angular Momentum (OAM) Mode Mixing in a Bent Step Index Fiber in Perturbation Theory

open access: yesIEEE Photonics Journal, 2019
Within the framework of perturbation theory, we explore in detail the mixing of orbital angular momentum (OAM) modes due to a fiber bend in a step-index multimode fiber.
Ramesh Bhandari
doaj   +1 more source

Modulation of Astrocytes on Mode Selection of Neuron Firing Driven by Electromagnetic Induction

open access: yesNeural Plasticity, 2020
Both of astrocytes and electromagnetic induction are magnificent to modulate neuron firing by introducing feedback currents to membrane potential.
Zhongquan Gao   +3 more
doaj   +1 more source

Mode Mixing and Rotational Splittings. II. Reconciling Different Approaches to Mode Coupling

open access: yesThe Astrophysical Journal, 2023
In the mixed-mode asteroseismology of subgiants and red giants, the coupling between the p- and g- mode cavities must be understood well in order to derive localized estimates of interior rotation from measurements of mode multiplet rotational splittings.
J. M. Joel Ong, Charlotte Gehan
doaj   +1 more source

Self-Mixing Signal Characteristics of Complex-Coupled Distributed-Feedback Terahertz Quantum-Cascade Lasers

open access: yesFrontiers in Physics, 2021
Self-mixing interference (SMI) in terahertz quantum cascade lasers (THz QCLs) is one of the significant approaches for coherent THz imaging and sensing techniques.
Lei Ge   +8 more
doaj   +1 more source

Early Body Mass Index z‐Score Change and Resolution of Severe Malnutrition in Children With Sickle Cell Anemia in a Low‐Income Setting: A Prospective Single‐Arm Extension Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell anemia (SCA) in low‐income settings are at risk of severe malnutrition, but optimal nutritional management has not been established. We evaluated an intensified ready‐to‐use therapeutic food (RUTF) regimen in children with persistent severe malnutrition after initial treatment and assessed whether early ...
Safiya Gambo   +9 more
wiley   +1 more source

Orthogonal Self-Similarity Decomposition (OSSD): A Delay-Based Framework for Multiscale Time Series Analysis with Applications in Hydrological Forecasting

open access: yesFractal and Fractional
Decomposition of nonlinear, nonstationary multicomponent signals remains challenging for existing decomposition strategies, including frequency-based, data-driven, and subspace methods, which can suffer from mode mixing, leakage across components, and ...
Fatma Latifoğlu, Levent Latifoğlu
doaj   +1 more source

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