Results 111 to 120 of about 5,271,083 (289)

Airport slot allocation in Europe: economic efficiency and fairness [PDF]

open access: yes
We propose a mechanism for solving the airport slot allocation problem in Europe. We consider the interdependence of the slots at different airports, and we maximize the efficiency of the system.
Raffaele Pesenti   +2 more
core  

In Vivo Nb4C3Tx MXene‐Assisted Photothermal Therapy of Melanoma in Mice

open access: yesAdvanced NanoBiomed Research, EarlyView.
Nb4C3Tx MXene converts pulsed 1064 nm irradiation into localized heat, producing concentration‐ and time‐dependent melanoma cell killing in vitro and suppressing tumor growth in mice. Histology reveals extensive tumor damage, macrophage‐associated material clearance, and no detectable persistent deposits in examined visceral organs, supporting Nb4C3Tx ...
Anton Roshchupkin   +22 more
wiley   +1 more source

Novel Method for Continuous Beam Scanning Leaky-Wave Antenna Based on SIW T-Junction Impedance Matching

open access: yesIEEE Open Journal of Antennas and Propagation
A novel substrate-integrated-waveguide (SIW) leaky-wave antenna (LWA) based on an H-plane waveguide T-junction is presented to mitigate the open stopband (OSB).
Cheng Chen   +3 more
doaj   +1 more source

Research on Heat Transfer Enhancement of Spiral Grooved Tube Heat Exchangers Based on CFD and Artificial Intelligence

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Driven by the energy crisis and carbon neutrality goals, high‐efficiency heat exchange equipment has become a core demand in the industrial sector. The spiral grooved double‐pipe heat exchanger exhibits significant heat transfer enhancement advantages, yet it requires balancing heat transfer efficiency and pressure loss.
Yueyun Yang, Wei Li, Xiuzhi Xi, Neng Gao
wiley   +1 more source

Research and Implementation of OFC-Based Multicarrier Sliceable Bandwidth Variable Transponders in Hybrid Laser/Microwave Satellite Networks

open access: yesIEEE Access
In this paper, a multicarrier sliceable bandwidth variable transponder based on optical frequency comb (OFC) is proposed. The structure of the transponder’s internal switching unit is designed, and the principle of generating ultra-flat OFC based ...
Bin Wu, Hao Zhang, Qingchun Zhao
doaj   +1 more source

The slot car stig: Performance and consistency of a slot car driven by a heuristic algorithm in an embedded microcontroller [PDF]

open access: yes, 2009
We present theory and measured performance of an autonomous slot car driven by a heuristic algorithm on a typical track. The hardware consists of a PIC 8-bit single-chip microcontroller with various sensors driving a standard permanent-magnet (PM ...
Scott, Jonathan B., Kane, Steven
core   +1 more source

Multiscale Modeling Approach of Slot Die Coating of Unidirectional Glass Fiber Fabric

open access: yesJournal of Applied Polymer Science, EarlyView.
2D macroscale and microscale computational fluid dynamic (CFD) models are combined in a multiscale approach to develop a model for slot die coating of glass fiber (GF) fabrics in cellulose nanocrystal (CNC) dispersion as a sizing. For slot die coating models with and without vacuum assist, the model is able to predict stable operating parameters which ...
Kim Anh Pham   +4 more
wiley   +1 more source

Optimized Wavy Thermal Radiative Analysis of Electrochemically Ternary Hybrid Nanomaterials Affected by an Induced Magnetic Force: An ANN‐Based Levenberg–Marquardt Backpropagation Approach

open access: yesAdvanced Physics Research, EarlyView.
This diagram illustrates the wavy flow configuration of the model in a Cartesian coordinate system. It represents the heat and mass transfer characteristics of ternary hybrid nanofluids over a vertically wavy surface in the presence of an induced magnetic field and double‐diffusive mixed convection.
Latif Ahmad   +4 more
wiley   +1 more source

Design of dual-frequency circularly-polarized slot antennas with switchable frequency

open access: yes, 2012
[[abstract]]A reconfigurable design for circularly-polarized (CP) slot antennas with dual-frequency operation is presented in this article. The proposed antenna structure is composed of an annular-ring slot, fed by an L-shaped strip, and four parasitic ...
Hsieh, Tsung-Hsun; Row, Jeen-Sheen
core  

Anatomy and variation in the paraphyletic Mosasaurus lemonnieri assemblage from the Craie phosphatée de ciply, Belgium

open access: yesThe Anatomical Record, EarlyView.
Abstract Nineteenth century excavations of the Ciply‐Malogne Phosphatic Chalk Formation in Hainaut, Belgium, yielded over 50 partial mosasaur skeletons, the majority of which were referred to the species Mosasaurus lemonnieri Dollo, 1889. In the years since, this taxon has experienced a complicated taxonomic history, and its exceptional hypodigm has ...
Henry S. Sharpe   +3 more
wiley   +1 more source

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