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1,590 Results Found

  • Article
  • Open Access
9 Citations
3,127 Views
24 Pages

23 June 2022

Computational Fluid Dynamics (CFD) is used to accurately model and predict the dispersion of a passive scalar in the atmospheric wind flow field within an urban setting. The Mock Urban Setting Tests (MUST) experiment was recreated in this work to tes...

  • Article
  • Open Access
1 Citations
1,126 Views
27 Pages

3 April 2025

Several experimental studies have shown that clinoptilolite zeolite is a suitable candidate for the adsorption of pharmaceuticals and related compounds. However, there is a significant lack of detailed molecular-level insights regarding how the adsor...

  • Article
  • Open Access
3 Citations
4,067 Views
31 Pages

28 September 2023

To improve the reliability of the computational fluid dynamics (CFD) models of wind-driven pollutant dispersion within urban settings, a re-calibration study is conducted to optimize the standard k−ε model. A modified optimization frame...

  • Article
  • Open Access
1,408 Views
25 Pages

In this study, a set of accurate dispersive nonlinear wave equations is established, using the wave velocity and free surface elevation as variables. These equations improve upon previous equations in which the velocity potential is used as a variabl...

  • Article
  • Open Access
2 Citations
880 Views
20 Pages

21 February 2025

This article aims to study parallelizable random dynamical systems by examining them through the terms of dissipation and stochastic Lyapunov functions. It is demonstrated that any random variable that is not a random fixed point admits a tube, and e...

  • Article
  • Open Access
1,126 Views
32 Pages

29 August 2025

Even though clinoptilolite mineral is the most important natural zeolite for technical applications, the molecular-level insights and detailed knowledge of their true local structures and adsorption behavior are largely lacking. An experimental deter...

  • Article
  • Open Access
6 Citations
2,413 Views
17 Pages

18 October 2022

Finite-difference methods are the most widely used methods for seismic wavefield simulation. However, numerical dispersion is the main issue hindering accurate simulation. In the case where the finite-difference scheme is known, the time dispersion c...

  • Data Descriptor
  • Open Access
7 Citations
4,477 Views
18 Pages

28 April 2022

This manual presents a procedure to calibrate the one-dimensional sound speed (co) and Poisson’s ratio (ν) of a (split) Hopkinson bar using the open-source templates written in Excel® and Matlab® for dispersion correction. The Excel&...

  • Article
  • Open Access
2 Citations
2,602 Views
16 Pages

20 May 2022

We investigate the effect of the environment dimensionality and different dispersal strategies on the evolution of cooperation in a finite structured population of mobile individuals. We consider a population consisting of cooperators and free-riders...

  • Article
  • Open Access
1 Citations
1,578 Views
22 Pages

24 April 2023

This study concerns dispersed data stored in independent local tables with different sets of attributes. The paper proposes a new method for training a single neural network—a multilayer perceptron based on dispersed data. The idea is to train...

  • Article
  • Open Access
10 Citations
7,375 Views
14 Pages

7 February 2020

As elements of green infrastructure, railway embankments are important corridors in urban environments connecting otherwise isolated habitat fragments. They are interrupted when railways cross major roads. It is not known whether dispersing animals u...

  • Article
  • Open Access
24 Citations
6,012 Views
21 Pages

Solvent-Free Ultrasonic Dispersion of Nanofillers in Epoxy Matrix

  • Benjamin Zanghellini,
  • Patrick Knaack,
  • Sebastian Schörpf,
  • Karl-Heinz Semlitsch,
  • Helga C. Lichtenegger,
  • Bernhard Praher,
  • Maria Omastova and
  • Harald Rennhofer

19 January 2021

Dispersion of carbon nanotubes and carbon nanofibers is a crucial processing step in the production of polymer-based nanocomposites and poses a great challenge due to the tendency of nanofillers to agglomerate. One of the most effective methods for d...

  • Review
  • Open Access
12 Citations
332 Views
10 Pages

Is There a Utility for QRS Dispersion in Clinical Practice?

  • Ionuț Donoiu,
  • Georgică C. Târtea and
  • Elibet Chávez-González

Prognostic markers derived from standard ECG have always been seductive. Increased dispersion of durations of the P wave, of the QRS complex, or of the QT interval has been associated with the risk of atrial fibrillation, ventricular arrhythmias, sud...

  • Article
  • Open Access
4 Citations
3,642 Views
13 Pages

18 February 2022

In this work, a crosslinked polycarboxylate superplasticizer (crosslinked-PC) was synthesized via the free radical polymerization reaction. Pentaerythritol tetraacrylate (PETA) was used as the crosslinked agent. A comparative comb-like polycarboxylat...

  • Article
  • Open Access
10 Citations
396 Views
14 Pages

Gaze data of 31 participants of a memory recall experiment was analyzed and the I-DT dispersion based algorithm of Salvucci and Goldberg (2000) was used to identify fixations. It was found that individuals differ considerably with regard to the stabi...

  • Article
  • Open Access
18 Citations
4,566 Views
11 Pages

7 February 2019

Ultrasonic Lamb wave testing has been successfully applied in nondestructive testing. However, because of Lamb wave multimodal and dispersion characteristics, the received signals are often multimodal and overlapping, which makes them very complicate...

  • Proceeding Paper
  • Open Access
19 Citations
19,411 Views
14 Pages

Modelling the dispersion of atmospheric pollutants plays an important role in regulatory and epidemiological settings. Although the majority of modelling concepts were developed in the 1980s, a significant amount of optimisation and refinement of dis...

  • Article
  • Open Access
10 Citations
2,648 Views
20 Pages

A Multi-Start Biased-Randomized Algorithm for the Capacitated Dispersion Problem

  • Juan F. Gomez,
  • Javier Panadero,
  • Rafael D. Tordecilla,
  • Juliana Castaneda and
  • Angel A. Juan

9 July 2022

The capacitated dispersion problem is a variant of the maximum diversity problem in which a set of elements in a network must be determined. These elements might represent, for instance, facilities in a logistics network or transmission devices in a...

  • Article
  • Open Access
1,430 Views
18 Pages

Comparing the Utility of Capture–Mark–Recapture, Telemetry, and Genetic Data in Assessing Population-Level Dispersal

  • Shashwat Sirsi,
  • Brian J. Halstead,
  • Michael L. Morrison,
  • M. Clay Green,
  • David Rodriguez and
  • Michael R. J. Forstner

26 February 2025

Gaps in dispersal data limit habitat protection efforts. We sought to characterize such gaps and compare the utility of dispersal data from demographic and genetic methods in making habitat protection decisions. Here, we used a search string to retri...

  • Article
  • Open Access
530 Views
32 Pages

This study uses ordinary Portland–sulfate–silicate composite cement as the matrix and investigates the effects of water–cement ratio, HPMC dosage, and PCS dosage on the performance of specialized grouting materials for subway struct...

  • Communication
  • Open Access
14 Citations
12,331 Views
10 Pages

Flow Cell Coupled Dynamic Light Scattering for Real-Time Monitoring of Nanoparticle Size during Liquid Phase Bottom-Up Synthesis

  • Nicole Meulendijks,
  • Renz Van Ee,
  • Ralph Stevens,
  • Maurice Mourad,
  • Marcel Verheijen,
  • Nils Kambly,
  • Ricardo Armenta and
  • Pascal Buskens

13 January 2018

To tailor the properties of nanoparticles and nanocomposites, precise control over particle size is of vital importance. Real-time monitoring of particle size during bottom-up synthesis in liquids would allow a detailed study of particle nucleation a...

  • Article
  • Open Access
7 Citations
2,982 Views
16 Pages

Solid-State Dispersions of Platinum in the SnO2 and Fe2O3 Nanomaterials

  • Edi Radin,
  • Goran Štefanić,
  • Goran Dražić,
  • Ivan Marić,
  • Tanja Jurkin,
  • Anđela Pustak,
  • Nikola Baran,
  • Matea Raić and
  • Marijan Gotić

10 December 2021

The dispersion of platinum (Pt) on metal oxide supports is important for catalytic and gas sensing applications. In this work, we used mechanochemical dispersion and compatible Fe(II) acetate, Sn(II) acetate and Pt(II) acetylacetonate powders to bett...

  • Article
  • Open Access
12 Citations
2,841 Views
14 Pages

Optimization of Graphene Nanoplatelets Dispersion and Its Performance in Cement Mortars

  • Yong Zhou,
  • Yuliang Wang,
  • Tianming Gao,
  • Yifeng Ling,
  • Nengdong Jiang,
  • Abdullah M. Tawfek and
  • Huaqiang Yuan

19 October 2022

As promising next-generation conducting materials, Graphene Nanoplatelets (GNPs) have been widely used to enhance the mechanical and pressure-sensitive properties of cement-based materials. However, this beneficial effect highly depended on its dispe...

  • Brief Report
  • Open Access
1 Citations
2,150 Views
12 Pages

30 August 2023

This study aims to develop a straightforward and practical formula to estimate transverse dispersion coefficients in meandering natural rivers, a critical factor for predicting solute transport. We present a novel expression for the transverse disper...

  • Article
  • Open Access
1 Citations
1,272 Views
14 Pages

Machine Learning-Assisted Hardness Prediction of Dispersion-Strengthened Tungsten Alloy

  • Shaowu Dai,
  • Chong Chen,
  • Cong Zhang,
  • Shizhong Wei,
  • Beibei Han,
  • Changji Wang,
  • Kunming Pan,
  • Liujie Xu,
  • Feng Mao and
  • Hua Yu

7 March 2025

Hardness, as a typical mechanical property of dispersion-strengthened tungsten alloy, is influenced by various coupled factors. This paper aims to identify the key factors affecting the hardness of the dispersion-strengthened tungsten alloys with dif...

  • Article
  • Open Access
5 Citations
8,261 Views
16 Pages

7 September 2016

Chromatic dispersion from optical fiber is the most important problem that produces temporal skews and destroys the rectangular structure of code patterns in the spectra-amplitude-coding-based optical code-division multiple-access (SAC-OCDMA) system....

  • Article
  • Open Access
3 Citations
1,910 Views
11 Pages

28 December 2022

When the channel wave passes through the abnormal body, the dispersion curve appears interval, dislocation, and discontinuity, resulting in the non-standard and large error of the “velocity-frequency” pickup result of the transmitted chan...

  • Article
  • Open Access
1 Citations
1,830 Views
14 Pages

24 December 2022

Dispersing particles in a liquid phase is significant for producing various functional nano/bio applications. The wet-jet milling method has been gaining attention as an attractive dispersing method in the preparation of soft material suspensions. Th...

  • Article
  • Open Access
1,913 Views
21 Pages

7 October 2023

A set of Boussinesq-type wave equations with enhanced dispersion characteristics is presented for accurate, efficient, and robust numerical treatment. New arrangement uses three different velocity variables simultaneously in order to keep continuity...

  • Article
  • Open Access
10 Citations
4,093 Views
14 Pages

Effects of Velocity and Permeability on Tracer Dispersion in Porous Media

  • Yulong Yang,
  • Tongjing Liu,
  • Yanyue Li,
  • Yuqi Li,
  • Zhenjiang You,
  • Mengting Zuo,
  • Pengxiang Diwu,
  • Rui Wang,
  • Xing Zhang and
  • Jinhui Liang

13 May 2021

During micro-scale tracer flow in porous media, the permeability and fluid velocity significantly affect the fluid dispersion properties of the media. However, the relationships between the dispersion coefficient, permeability, and fluid velocity in...

  • Article
  • Open Access
454 Views
24 Pages

11 December 2025

Rock fracture connectivity is a developing concept that demonstrates the effectiveness of fracture networks in facilitating the preferential flow of fluid through the medium. This study demonstrates the significance and impact of fracture parameters...

  • Article
  • Open Access
1,960 Views
18 Pages

9 July 2024

Carbon black particles possess dimensions on the nanometer or sub-nanometer scale. When utilized, these particles have a tendency to aggregate, which compromises their stability under storage conditions. To address this issue, a dispersant was prepar...

  • Article
  • Open Access
21 Citations
3,488 Views
21 Pages

The Mechanisms of Antibacterial Activity of Magnesium Alloys with Extreme Wettability

  • Alexandre M. Emelyanenko,
  • Alexander G. Domantovsky,
  • Valery V. Kaminsky,
  • Ivan S. Pytskii,
  • Kirill A. Emelyanenko and
  • Ludmila B. Boinovich

21 September 2021

In this study, we applied the method of nanosecond laser treatment for the fabrication of superhydrophobic and superhydrophilic magnesium-based surfaces with hierarchical roughness when the surface microrelief is evenly decorated by MgO nanoparticles...

  • Article
  • Open Access
3 Citations
2,560 Views
14 Pages

A Family of Finite Mixture Distributions for Modelling Dispersion in Count Data

  • Seng Huat Ong,
  • Shin Zhu Sim,
  • Shuangzhe Liu and
  • Hari M. Srivastava

18 September 2023

This paper considers the construction of a family of discrete distributions with the flexibility to cater for under-, equi- and over-dispersion in count data using a finite mixture model based on standard distributions. We are motivated to introduce...

  • Article
  • Open Access
22 Citations
13,102 Views
12 Pages

Wind Dispersal of Natural and Biomimetic Maple Samaras

  • Gary K. Nave,
  • Nathaniel Hall,
  • Katrina Somers,
  • Brock Davis,
  • Hope Gruszewski,
  • Craig Powers,
  • Michael Collver,
  • David G. Schmale and
  • Shane D. Ross

Maple trees (genus Acer) accomplish the task of distributing objects to a wide area by producing seeds, known as samaras, which are carried by the wind as they autorotate and slowly descend to the ground. With the goal of supporting engineering appli...

  • Article
  • Open Access
1 Citations
1,373 Views
29 Pages

Analogous Hawking Radiation in Dispersive Media

  • Francesco Belgiorno,
  • Sergio L. Cacciatori and
  • Simone Trevisan

2 November 2024

In the framework of the analogous Hawking effect, we significantly improve our previous analysis of the master equation that encompasses very relevant physical systems, like Bose–Einstein condensates (BECs), dielectric media, and water. In part...

  • Article
  • Open Access
3 Citations
2,359 Views
22 Pages

16 December 2022

This paper presents a fiber-based chromatic dispersion probe for the simultaneous measurement of dual-axis absolute and relative displacement with nanometric resolutions. The proposed chromatic dispersion probe is based on optical dispersion. In the...

  • Article
  • Open Access
1 Citations
1,989 Views
15 Pages

31 July 2024

Electroacoustic transducers represent one of the crucial materials used in the construction of loudspeaker arrays. The dispersion in their parameters may influence the performance of a speaker set. Parametric loudspeaker arrays and omnidirectional so...

  • Communication
  • Open Access
4 Citations
3,074 Views
12 Pages

16 February 2021

Selective abortion, also called selective maturation, is a phenomenon wherein maternal plants selectively mature ovules that have the potential to grow into higher-quality fruits, such as those that contain more seeds. We hypothesized that the effect...

  • Article
  • Open Access
1 Citations
2,126 Views
32 Pages

24 November 2024

High-flying insects that exploit tropospheric winds can disperse over far greater distances in a single generation than species restricted to below-canopy flight. However, the ecological consequences of such long-range dispersal remain poorly underst...

  • Article
  • Open Access
6 Citations
3,741 Views
23 Pages

Shared parking is an effective means to alleviate the shortage of parking spaces in urban central areas during the morning peak hours. Meanwhile, walking time cost and parking fees are two critical factors affecting shared parking efficiency. Firstly...

  • Article
  • Open Access
7 Citations
3,290 Views
15 Pages

8 November 2022

The echelle grating spectrometer, with a wide spectral range and high-resolution spectral analysis, is one of the best tools for fine spectral measurement. Nevertheless, it suffers from excessive residual aberrations and a large overall size. In this...

  • Article
  • Open Access
3 Citations
4,802 Views
11 Pages

Colloidal Stability of Positively Charged Dispersions of Styrene and Acrylic Copolymers in the Presence of TiO2 and CaCO3

  • Kamil Wojciechowski,
  • Małgorzata Gutarowicz,
  • Kamil Janke,
  • Ilona Jurek,
  • Marcin Kaczorowski,
  • Jolanta Mierzejewska and
  • Paweł Parzuchowski

Increasing antibiotic resistance of several pathogenic microorganisms calls for alternative approaches to prevent spreading of bacterial diseases. We propose to employ for this purpose coatings obtained from positively charged latex dispersions. In t...

  • Article
  • Open Access
1 Citations
3,634 Views
12 Pages

16 December 2019

For Central European herbs, ants are one common dispersal vector acting at relatively small spatial scales. Though extensively studied concerning the different benefits to plants, specific dispersal patterns mediated by ants have been reportedly very...

  • Article
  • Open Access
2 Citations
2,951 Views
17 Pages

14 November 2024

Verifying the pattern of toxic gas dispersion simulations under mountainous conditions is vital for emergency response and rescue. In this study, a comparative analysis is conducted between CALPUFF (California Puff Model) and CFD (Computational Fluid...

  • Review
  • Open Access
17 Citations
3,746 Views
17 Pages

Shear Wave Dispersion in Chronic Liver Disease: From Physical Principles to Clinical Usefulness

  • Matteo Garcovich,
  • Mattia Paratore,
  • Maria Elena Ainora,
  • Laura Riccardi,
  • Maurizio Pompili,
  • Antonio Gasbarrini and
  • Maria Assunta Zocco

The development of new applications in ultrasound (US) imaging in recent years has strengthened the role of this imaging technique in the management of different pathologies, particularly in the setting of liver disease. Improved B-mode imaging (3D a...

  • Article
  • Open Access
3,593 Views
23 Pages

The Neural Network Assisted Land Use Regression

  • Jan Bitta,
  • Vladislav Svozilík and
  • Aneta Svozilíková Krakovská

1 April 2021

Land Use Regression (LUR) is one of the air quality assessment modelling techniques. Its advantages lie mainly in a much simpler mathematical apparatus, quicker and simpler calculations, and a possibility to incorporate more factors affecting polluta...

  • Article
  • Open Access
3 Citations
1,797 Views
22 Pages

7 December 2023

This research delves into the intricate dynamics between multi-walled carbon nanotubes (MWCNTs), air-entraining admixtures (AEAs), and a range of superplasticizers (SPs) in cementitious systems, shedding light on key aspects of construction material...

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