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3,302 Results Found

  • Review
  • Open Access
4 Citations
3,511 Views
20 Pages

Traffic Flow Theory for Waterway Traffic: Current Challenges and Countermeasures

  • Siqing Zhuang,
  • Yihua Liu,
  • Weihao Wang,
  • Shaojie Guo and
  • Daiheng Ni

8 December 2024

Researchers are increasingly turning to roadway traffic flow theory to propose effective solutions for challenges such as traffic congestion and low efficiency in waterway transportation. However, since roadway traffic flow theory was originally deve...

  • Article
  • Open Access
789 Views
23 Pages

20 December 2025

This paper addresses the axiom of balance in Flow Theory from a physiological-and-group-based approach by a quasi-experimental study using mixed methods across two action–research cycles, each divided into pre-test, intervention, and post-test...

  • Article
  • Open Access
3 Citations
1,856 Views
31 Pages

29 July 2024

Power systems are the main source of carbon emissions. Currently, coordinated operation strategies of the source–grid–load–storage model considering carbon emissions is primarily expanded from the generation side. For practical powe...

  • Article
  • Open Access
1,684 Views
16 Pages

Urban Regional Building Energy Planning Model under the Guidance of Network Flow Theory

  • Jing Liu,
  • Pengqiang Zheng,
  • Yubao Zhan,
  • Zhiguo Li and
  • Zhaoxia Shi

21 December 2022

The satisfactory construction of regional building energy planning models is a key technology in effective energy allocation. At present, the selection of energy planning is only based on artificial judgment criteria, which leads to a high subjectivi...

  • Article
  • Open Access
2 Citations
1,846 Views
13 Pages

27 July 2024

The movement process of debris flow in the complex roads system is important for risk evaluation and emergency rescue. This paper presents an in-depth study of the diversion effect of debris flow in cross channels, a common branching structure in bot...

  • Article
  • Open Access
1 Citations
1,352 Views
19 Pages

Predicting the Dynamic of Debris Flow Based on Viscoplastic Theory and Support Vector Regression

  • Xinhai Zhang,
  • Hanze Li,
  • Yazhou Fan,
  • Lu Zhang,
  • Shijie Peng,
  • Jie Huang,
  • Jinxin Zhang and
  • Zhenzhu Meng

4 January 2025

The prediction of debris flows is essential for safeguarding infrastructure and minimizing the economic losses associated with the hazards. Traditional empirical and theoretical models, while providing foundational insights, often struggle to capture...

  • Feature Paper
  • Article
  • Open Access
12 Citations
11,271 Views
18 Pages

29 October 2020

The theory of two-phase immiscible flow in porous media is based on the extension of single phase models through the concept of relative permeabilities. It mimics Darcy’s law for a fixed average saturation through the introduction of saturation...

  • Article
  • Open Access
4 Citations
2,831 Views
20 Pages

Buckley–Leverett Theory for a Forchheimer–Darcy Multiphase Flow Model with Phase Coupling

  • Ahmad Abushaikha,
  • Dominique Guérillot,
  • Mostafa Kadiri and
  • Saber Trabelsi

This paper is dedicated to the modeling, analysis, and numerical simulation of a two-phase non-Darcian flow through a porous medium with phase-coupling. Specifically, we introduce an extended Forchheimer–Darcy model where the interaction between phas...

  • Article
  • Open Access
1 Citations
1,828 Views
14 Pages

4 December 2023

Multiphase pumps operate under different flow conditions with different work performance. In order to reveal the energy conversion regulations in multiphase pumps under different flows, this paper presents an analysis of the effects of different flow...

  • Article
  • Open Access
16 Citations
5,424 Views
15 Pages

13 October 2024

This study aims to develop a new theoretical framework from the perspective of the Technology Acceptance Model (TAM), incorporating flow theory, to explore the factors influencing behavioral intentions to participate in metaverse tourism. Using data...

  • Review
  • Open Access
46 Citations
12,056 Views
31 Pages

4 August 2020

Fractional flow theory still serves as a powerful tool for validation of numerical reservoir models, understanding of the mechanisms, and interpretation of transport behavior in porous media during the Chemical-Enhanced Oil Recovery (CEOR) process. W...

  • Article
  • Open Access
1,829 Views
23 Pages

21 September 2023

In this work, a three-dimensional CFD model for the gas–solid flow of two different particle sizes in a CFB riser coupled with a kinetic theory (KT) has been developed. The properties of the solid phases are calculated using the proposed multi-...

  • Article
  • Open Access
2 Citations
4,785 Views
22 Pages

17 January 2024

Axial-flow fans are widely used as cooling fans in the outdoor units of split-type air conditioners. The design of an axial-flow fan blade involves stacking several airfoils that can be differently designed for each spanwise section. However, the com...

  • Feature Paper
  • Article
  • Open Access
2 Citations
1,268 Views
18 Pages

11 July 2024

As the critical component of a nuclear power plant (NPP), the reactor coolant pump (RCP) will suffer energy losses during operation, which can lead to a series of safety issues and adversely affect the efficiency and stability of the NPP. In this stu...

  • Article
  • Open Access
14 Citations
3,942 Views
15 Pages

29 December 2017

The impact of the rapid development of large-scale centralized wind power farms on the power system is drawing more and more attention. Some topics about grid-connected wind power are discussed from the view of complex network theory in this paper. F...

  • Article
  • Open Access
7 Citations
3,145 Views
21 Pages

31 October 2024

This study aims to address the need for design guidelines in developing a cultural-heritage-based metaverse educational system. Using the UTAUT, the TTF model, and Flow Theory, a theoretical framework is constructed. Through qualitative research base...

  • Article
  • Open Access
1 Citations
2,745 Views
12 Pages

In this study, the improvement effect of flow distribution evenness is evaluated quantitatively by applying the double piping theory to a parallel-arrayed low-pressure membrane module header pipe structure, and its feasibility is discussed. Orifice i...

  • Feature Paper
  • Article
  • Open Access
2 Citations
2,381 Views
23 Pages

28 May 2025

Based on Graph Balancing Theory, this study proposes an anomaly detection algorithm, the Supply Chain Proof of Relation (PoR), applied to enterprise procurement networks formalized as weighted directed graphs. A mathematical framework is constructed...

  • Article
  • Open Access
9 Citations
4,996 Views
25 Pages

27 December 2023

Effective cash flow management has become crucial for projects and stakeholders given the wide payment-related problems and financial risks encountered in the construction industry worldwide. Previous studies mostly addressed cash flow and payments f...

  • Article
  • Open Access
2 Citations
3,984 Views
27 Pages

18 January 2022

Enhanced approximate expressions for the incipient indicial lift of thin wings in subsonic potential flow are presented in this study, featuring explicit analytical corrections for the unsteady downwash. Lifting-line and acoustic-wave theories form t...

  • Article
  • Open Access
6 Citations
2,788 Views
19 Pages

1 April 2022

Simulation and experimental studies have demonstrated non-equilibrium ordering in driven colloidal suspensions: with increasing driving force, a uniform colloidal mixture transforms into a locally demixed state characterized by the lane formation or...

  • Article
  • Open Access
31 Citations
5,439 Views
18 Pages

12 May 2022

Mixed traffic composed of human-driven vehicles (HDVs) and CAVs will exist for an extended period before connected and autonomous vehicles (CAVs) are fully employed on the road. There is a consensus that dense fog can cause serious traffic accidents...

  • Article
  • Open Access
79 Citations
9,632 Views
19 Pages

Eco-conscious behaviors have become a global imperative for entrepreneurs, as the consumer demand for products and services has become increasingly green. Hence, the purpose of this study is to identify the role of entrepreneurship education in envir...

  • Feature Paper
  • Review
  • Open Access
2 Citations
3,340 Views
25 Pages

27 April 2020

The focus of this paper is on Rapid Distortion Theory on transversely sheared mean flows, which is often used to investigate turbulence-solid surface interactions. The main purpose of the paper is to bring together and present in a consistent fashion...

  • Article
  • Open Access
3 Citations
2,164 Views
20 Pages

25 August 2023

In this work, the cohesion-specific inputs for a recent continuum theory for cohesive particles are estimated for moderately cohesive particles that form larger agglomerates via discrete element method (DEM) simulations of an oscillating shear flow....

  • Article
  • Open Access
11 Citations
2,338 Views
13 Pages

27 June 2023

The occurrence of downhole debris flows in caving mines has burst, concealment, and destruction characteristics. This study aimed to investigate accurate prevention and control measures for downhole debris flows. The research background was a downhol...

  • Feature Paper
  • Article
  • Open Access
56 Citations
8,557 Views
12 Pages

From Surface Flow Velocity Measurements to Discharge Assessment by the Entropy Theory

  • Tommaso Moramarco,
  • Silvia Barbetta and
  • Angelica Tarpanelli

14 February 2017

A new methodology for estimating the discharge starting from the monitoring of surface flow velocity, usurf, is proposed. The approach, based on the entropy theory, involves the actual location of maximum flow velocity, umax, which may occur below th...

  • Article
  • Open Access
5 Citations
2,783 Views
14 Pages

14 June 2022

A mathematical model of cerebral blood flow in the form of a dynamical system is studied. The cerebral blood flow autoregulation modeling problem is treated as a nonlinear control problem and the potential and applicability of the nonlinear control t...

  • Article
  • Open Access
4 Citations
1,590 Views
19 Pages

18 July 2024

The water-flowing fractured zone development height (WFZDH) is of great importance for water prevention and control in coal mines. The purpose of this research is to obtain a WFZDH prediction method of the first mining face based on thin plate theory...

  • Article
  • Open Access
3 Citations
1,325 Views
19 Pages

30 August 2023

This paper develops the ideal plastic flow theory for the stationary planar flow of pressure-dependent materials. Two rigid plastic material models are considered. One of these models is the double-shearing model, and the other is the double slip and...

  • Article
  • Open Access
9 Citations
2,289 Views
18 Pages

Characteristics of Cavitation Flow for a Regulating Valve Based on Entropy Production Theory

  • Jie He,
  • Qihang Liu,
  • Zheng Long,
  • Yujia Zhang,
  • Xiumei Liu,
  • Shaobing Xiang,
  • Beibei Li and
  • Shuyun Qiao

5 September 2022

A regulating valve is a key control element in the coal liquefaction industry, whose flow field distribution is related to the entropy production. In order to make a quantitative evaluation of the energy loss in the cavitation flow and calculate the...

  • Article
  • Open Access
2 Citations
2,406 Views
12 Pages

10 February 2023

The purpose of this paper is to explore a discrete-time cash flow optimization problem of the insurance company with time value of ruin under different interest rates. For the sake of considering the time value of ruin, we assume that the shareholder...

  • Article
  • Open Access
13 Citations
2,218 Views
16 Pages

20 October 2021

The behavior of convective boundary conditions is studied to delineate their role in heat and mass relegation in the presence of radiation, chemical reaction, and hydro-magnetic forces in three-dimensional Powell–Eyring nanofluids. Implications conce...

  • Article
  • Open Access
2 Citations
5,387 Views
35 Pages

8 March 2016

A rigorous derivation of the macroscopic governing equations for convective flow in a nanofluid saturated metal foam has been conducted using the volume averaging theory originally developed for analyzing heat and fluid flow in porous media. The nano...

  • Article
  • Open Access
38 Citations
8,903 Views
22 Pages

19 August 2018

In many extrusion processes, the metering section is the rate-controlling part of the screw. In this functional zone, the polymer melt is pressurized and readied to be pumped through the die. We have recently proposed a set of heuristic models for pr...

  • Article
  • Open Access
1 Citations
1,917 Views
14 Pages

16 October 2023

The marine fishery will be the main form of the marine economy in the future. Simulating a hydrodynamic response under normal and extreme working conditions is the main means of structural analysis and design of a mariculture ship. In this paper, a s...

  • Article
  • Open Access
8 Citations
3,733 Views
14 Pages

2 May 2022

In this paper, to reveal the flow characteristics of broken mineral-rock of block caving, we present the Attribute Stochastic Medium Theory that combines an attribute block model with stochastic medium theory. An attribute block model was established...

  • Article
  • Open Access
4 Citations
1,337 Views
16 Pages

Size Effect on Energy Characteristics of Axial Flow Pump Based on Entropy Production Theory

  • Hongliang Wang,
  • Xiaofeng Wu,
  • Xiao Xu,
  • Suhao Bian and
  • Fan Meng

20 March 2025

To investigate the size effect on the energy characteristics of axial flow pumps, this study scaled the original model size based on the head similarity principle, resulting in four size schemes (Schemes 2–4 correspond to 3, 5, and 10 times the...

  • Article
  • Open Access
2 Citations
4,377 Views
42 Pages

26 October 2024

In an era where digital technologies are integral to daily life and sustainable education is increasingly critical, developing higher-order thinking skills with appropriate information and communication technology (ICT) support is crucial for achievi...

  • Article
  • Open Access
50 Citations
3,311 Views
22 Pages

31 October 2019

Mechanical energy dissipation is a major problem affecting hydraulic machinery especially under partial-load conditions. Owing to limitations of traditional methods in evaluating mechanical energy dissipation, entropy generation theory is introduced...

  • Article
  • Open Access
3 Citations
3,292 Views
12 Pages

23 February 2023

The aim of this investigation is to show the solution for the critical Reynolds number in the flow around the sphere on the basis of theory of stochastic equations and equivalence of measures between turbulent and laminar motions. Solutions obtained...

  • Article
  • Open Access
12 Citations
4,300 Views
11 Pages

25 December 2020

The determination of the flow regime of liquid and gas in power plants is the most important design task. Performing the calculations based on modern calculation methods requires a priori knowledge of the initial and boundary conditions, which signif...

  • Article
  • Open Access
4 Citations
2,194 Views
18 Pages

Research on Carbon-Reduction-Oriented Demand Response Technology Based on Generalized Nodal Carbon Emission Flow Theory

  • Shixu Zhang,
  • Yaowang Li,
  • Ershun Du,
  • Wei Wang,
  • Min Wang,
  • Haoran Feng,
  • Yi Xie and
  • Qiuyu Chen

19 September 2024

The decarbonization of power systems plays a great part in the carbon neutrality goal. Currently, researchers have explored reducing carbon in power systems in terms of the optimization of energy supply structure and operation strategies, but ignored...

  • Article
  • Open Access
3 Citations
1,676 Views
19 Pages

Low-Carbon Dispatch Method for Active Distribution Network Based on Carbon Emission Flow Theory

  • Jiang Bian,
  • Yang Wang,
  • Zhaoshuai Dang,
  • Tianchun Xiang,
  • Zhiyong Gan and
  • Ting Yang

9 November 2024

In the context of integrating renewable energy sources such as wind and solar energy sources into distribution networks, this paper proposes a proactive low-carbon dispatch model for active distribution networks based on carbon flow calculation theor...

  • Article
  • Open Access
576 Views
16 Pages

9 April 2025

The seawater circulation pump represents the pump product with the largest flow rate within nuclear power plants. Its energy consumption accounts for a substantial portion of the energy consumed by nuclear power plants. To investigate the internal fl...

  • Article
  • Open Access
4 Citations
3,579 Views
17 Pages

28 October 2019

Traditional models of two-fluid flow through porous media at the macroscale have existed for nearly a century. These phenomenological models are not firmly connected to the microscale; thermodynamic constraints are not enforced; empirical closure rel...

  • Article
  • Open Access
5 Citations
3,716 Views
18 Pages

18 August 2022

Variable speed limit (VSL) control is an effective technology to improve safety near freeway bottlenecks. This study aims to develop a control strategy for mixed traffic flow consisting of both human-driven vehicles (HDVs) and connected and automated...

  • Article
  • Open Access
8 Citations
2,398 Views
16 Pages

10 May 2022

Air leakage in the goaf is a fundamental reason for the high-temperature heat damage of the coal mining face and the gas concentration in the upper corner exceeding the limit. Combined with the boundary layer theory, this study analyzes the airflow s...

  • Article
  • Open Access
4 Citations
1,827 Views
23 Pages

9 August 2023

Limited by the influence of network topology and other factors, the theory of carbon emission flow is unreasonable in the allocation of carbon responsibility on the user side, which leads to the low enthusiasm of users to respond to emission mitigati...

  • Article
  • Open Access
1 Citations
3,129 Views
16 Pages

10 March 2022

The objective of this study was to simulate the flow of graphene oxide (GO) dispersions, a discotic nematic liquid crystal (DNLC), using the Ericksen-Leslie (EL) theory. GO aqueous suspension, as a lubricant, effectively reduces the friction between...

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