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62,382 Results Found

  • Article
  • Open Access
2 Citations
2,378 Views
24 Pages

3 November 2021

Aquifer thermal energy storage (ATES) system is widely used mainly in Europe and USA. In this paper, we examined the efficient operation method of ATES by comparing it with the water thermal energy storage (WTES) system of an existent thermal energy...

  • Article
  • Open Access
11 Citations
3,476 Views
17 Pages

A New Reservoir Operation Chart Drawing Method Based on Dynamic Programming

  • Zhiqiang Jiang,
  • Yaqi Qiao,
  • Yuyun Chen and
  • Changming Ji

30 November 2018

A reservoir operation chart is an important tool in guiding actual reservoir operation at present. There are mainly two kinds of methods in drawing the operation chart, i.e., conventional methods and optimization methods, but each of them has some sh...

  • Article
  • Open Access
2 Citations
3,322 Views
20 Pages

12 January 2024

This study conducted a survey to identify the best ergonomic operation method, in-vehicle location, and the effects of their combination on electronic gearshifts. A total of 15 different design alternatives were derived through combinations of three...

  • Article
  • Open Access
2 Citations
1,881 Views
19 Pages

17 August 2024

The operation envelope of distribution networks can obtain the independent p-q controllable range of each active node, providing an effective means to address the issues of different ownership and control objectives between distribution networks and...

  • Feature Paper
  • Article
  • Open Access
4 Citations
3,088 Views
18 Pages

Efficient Operation Method of Aquifer Thermal Energy Storage System Using Demand Response

  • Jewon Oh,
  • Daisuke Sumiyoshi,
  • Masatoshi Nishioka and
  • Hyunbae Kim

27 May 2021

The mass introduction of renewable energy is essential to reduce carbon dioxide emissions. We examined an operation method that combines the surplus energy of photovoltaic power generation using demand response (DR), which recognizes the balance betw...

  • Feature Paper
  • Article
  • Open Access
21 Citations
3,145 Views
24 Pages

Multi-Reservoir Flood Control Operation Using Improved Bald Eagle Search Algorithm with ε Constraint Method

  • Wenchuan Wang,
  • Weican Tian,
  • Kwokwing Chau,
  • Hongfei Zang,
  • Mingwei Ma,
  • Zhongkai Feng and
  • Dongmei Xu

9 February 2023

The reservoir flood control operation problem has the characteristics of multiconstraint, high-dimension, nonlinearity, and being difficult to solve. In order to better solve this problem, this paper proposes an improved bald eagle search algorithm (...

  • Article
  • Open Access
8 Citations
3,248 Views
13 Pages

31 October 2022

The train operation scheme of urban rail transit is a transportation plan formulated to fully meet the needs of passenger travel under the constraints of signal system capacity, turn-back capacity, and so on. Facing an unexpected epidemic, it was par...

  • Article
  • Open Access
5 Citations
2,132 Views
23 Pages

5 January 2023

A well-matched relationship between the compressor and turbine plays an important role in improving turbocharger and engine performance. However, in the matching of turbocharger and engine, the internal operation relationship between compressor and t...

  • Article
  • Open Access
24 Citations
4,244 Views
21 Pages

25 January 2021

Owing to the increases of energy loads and penetration of renewable energy with variability, it is essential to determine the optimum capacity of the battery energy storage system (BESS) and demand response (DR) within the microgrid (MG). To accompli...

  • Article
  • Open Access
6 Citations
2,291 Views
17 Pages

Long landing hazardous events (long landings) are regarded as the most common unsafe events during an aircraft’s landing phase and are significantly influenced by pilots’ leveling operations. This paper proposes a pre-warning method for l...

  • Article
  • Open Access
113 Views
20 Pages

6 February 2026

With the integration of high-proportion renewable energy, the operation modes of the power system are becoming increasingly complex and diverse. The typical operation modes selected with manual experience cannot comprehensively represent system opera...

  • Article
  • Open Access
1,502 Views
18 Pages

Research on Operation Optimization of Fluid Sampling in Wireline Formation Testing with Finite Volume Method

  • Lejun Wu,
  • Junhua Wang,
  • Haibo Liu,
  • Rui Huang,
  • Huizhuo Xie,
  • Xiaodong Li,
  • Xuan Li,
  • Jinhuan Liu and
  • Changjie Zhao

19 July 2024

Wireline formation testing is an important technique in the exploration and development of oil fields. Not only can real fluid samples be prepared from the formation directly obtained to know exactly whether the oil existed in the formation or not, b...

  • Article
  • Open Access
7 Citations
2,468 Views
12 Pages

10 September 2022

The efficiency of track utilization is one of the important factors for train operation in marshalling stations, and it can not only affect the turnover efficiency of trains, but also determine the capacity of railway stations. This paper presents an...

  • Article
  • Open Access
1 Citations
1,804 Views
17 Pages

A Large Bridge Traffic Operation Status Impact Assessment Model Based on AHP–Delphi–SVD Method

  • Jianxing Guo,
  • Yunrui Zhang,
  • Guanhu Yuan,
  • Yanbo Li,
  • Longfei Wang and
  • Zhi Dong

13 October 2024

As an important component of road traffic facilities, bridges play a crucial role in daily traffic operations, and changes in their status can have an impact on traffic operation. The existing research mainly focuses on monitoring the status of bridg...

  • Article
  • Open Access
1 Citations
804 Views
20 Pages

11 July 2025

The construction of a dam significantly alters downstream flow characteristics, often analyzed through changes in flow–duration curves before and after construction. Typically, post-dam flow–duration curves exhibit increased probabilities...

  • Article
  • Open Access

9 February 2026

Suction anchors play an important role in the exploration and development of marine natural gas hydrate (NGH). Suction anchors increase the bearing capacity and reduce tilting or sinking risk of underwater wellheads in the exploration and development...

  • Article
  • Open Access
1 Citations
2,006 Views
18 Pages

In order to reduce costs, compress space, and improve system stability under harsh operating conditions, the current vehicle motor drive systems often use position sensorless control methods. However, due to the introduction of filters and the hyster...

  • Article
  • Open Access
1 Citations
1,309 Views
25 Pages

19 December 2024

Energy storage is crucial for enhancing the economic efficiency of integrated energy systems. This paper addresses the need for flexible resources due to high renewable energy integration and the complexity of managing multiple resources. We propose...

  • Article
  • Open Access
12 Citations
3,590 Views
17 Pages

30 October 2023

The operation of reservoirs has significantly influenced the river ecological system. Upholding the ecological integrity of rivers during reservoir operations has been the focus of research over the years. When the Dahuofang reservoir project started...

  • Article
  • Open Access
5 Citations
1,959 Views
21 Pages

Operation Optimization of Thermal Management System of Deep Metal Mine Based on Heat Current Method and Prediction Model

  • Wenpu Wang,
  • Wei Shao,
  • Shuo Wang,
  • Junling Liu,
  • Kun Shao,
  • Zhuoqun Cao,
  • Yu Liu and
  • Zheng Cui

14 September 2023

With the increasing depth of metal mining, thermal damage has become a serious problem that restricts mining. The thermal management system of refrigeration and ventilation is an indispensable technology in the mining of deep metal mines, which plays...

  • Article
  • Open Access
9 Citations
2,755 Views
13 Pages

Develop a Comprehensive Method to Evaluate the Mental Workload of Ship Operators

  • Shengyuan Yan,
  • Yingying Wei,
  • Fengjiao Li and
  • Cong Chi Tran

Mental workload has become an important factor affecting the human error of ship operators. Controlling the mental workload of operators within a reasonable range can reduce human errors. The purpose of this study is to develop an evaluation method t...

  • Article
  • Open Access
16 Citations
1,933 Views
9 Pages

13 February 2023

In this paper, the method of transmutation operators is used to construct an exact solution of the Goursat problem for a fourth-order hyperbolic equation with a singular Bessel operator. We emphasise that in many other papers and monographs the fract...

  • Article
  • Open Access
4 Citations
3,970 Views
38 Pages

Cartesian Operator Factorization Method for Hydrogen

  • Xinliang Lyu,
  • Christina Daniel and
  • James K. Freericks

26 January 2022

We generalize Schrödinger’s factorization method for Hydrogen from the conventional separation into angular and radial coordinates to a Cartesian-based factorization. Unique to this approach is the fact that the Hamiltonian is represented...

  • Article
  • Open Access
2 Citations
706 Views
21 Pages

Viscoelastic materials are commonly used in civil engineering, biomedical sciences, and polymers, where understanding their creep and relaxation behaviors is essential for predicting long-term performance. This paper introduces an operator-based meth...

  • Feature Paper
  • Article
  • Open Access
1 Citations
2,795 Views
12 Pages

A Unified Convergence Analysis for Some Two-Point Type Methods for Nonsmooth Operators

  • Sergio Amat,
  • Ioannis Argyros,
  • Sonia Busquier,
  • Miguel Ángel Hernández-Verón and
  • María Jesús Rubio

3 August 2019

The aim of this paper is the approximation of nonlinear equations using iterative methods. We present a unified convergence analysis for some two-point type methods. This way we compare specializations of our method using not necessarily the same con...

  • Article
  • Open Access
1 Citations
2,145 Views
16 Pages

CubeSat Mission Scheduling Method Considering Operational Reliability

  • Jingjing Zhang,
  • Chenyang He,
  • Yan Zhang,
  • Xianjun Qi and
  • Xi Yang

19 January 2024

Mission scheduling is an effective method to increase the value of satellite missions and can greatly improve satellite resource management and quality of service. Based on the priority-based task scheduling model, this paper proposes a CubeSat sched...

  • Article
  • Open Access
1,512 Views
18 Pages

20 October 2022

The problem of constructing and justifying the discrete algorithms of the support operator method for numerical modeling of differential repeated rotational operations of vector analysis (curlcurl) in application to problems of magnetohydrodynamics i...

  • Article
  • Open Access
1 Citations
2,386 Views
7 Pages

q-Functions and Distributions, Operational and Umbral Methods

  • Giuseppe Dattoli,
  • Silvia Licciardi,
  • Bruna Germano and
  • Maria Renata Martinelli

21 October 2021

The use of non-standard calculus means have been proven to be extremely powerful for studying old and new properties of special functions and polynomials. These methods have helped to frame either elementary and special functions within the same logi...

  • Review
  • Open Access
839 Views
27 Pages

Aiming at the operation optimization and evaluation problems of a park-level integrated energy system with mobile robots, the current research status and main problems are reviewed from three aspects: classification of operation optimization objectiv...

  • Article
  • Open Access
6 Citations
2,575 Views
12 Pages

5 March 2019

In this paper, we will apply the operator method to prove the generalized Hyers-Ulam stability of the wave equation, u t t ( x , t ) c 2 u ( x , t ) = f ( x , t ) , for a class of real-valued functions with continuous sec...

  • Article
  • Open Access
11 Citations
3,110 Views
25 Pages

Anomaly Detection in a Logistic Operating System Using the Mahalanobis–Taguchi Method

  • Takumi Asakura,
  • Wataru Yashima,
  • Kouki Suzuki and
  • Makoto Shimotou

25 June 2020

Product delivery via logistic systems is becoming more efficient, rapidly and continuously bringing products to the customer. The continuous operation of logistic equipment, however, can lead to mechanical stoppages due to excessive use. To avoid sys...

  • Article
  • Open Access
1 Citations
3,760 Views
15 Pages

21 August 2024

The work in the technological sewing process is carried out on machine systems characterised by machine–hand work, where the worker and the machine work simultaneously. Such a work system requires a high level of responsibility in terms of qual...

  • Article
  • Open Access
6 Citations
2,542 Views
22 Pages

12 December 2022

Embedded computing platforms such as neural network accelerators deploying neural network models need to quantize the values into low-bit integers through quantization operations. However, most current embedded computing platforms with a fixed-point...

  • Article
  • Open Access
5 Citations
8,187 Views
24 Pages

22 October 2014

In computer science, dependence analysis determines whether or not it is safe to parallelize statements in programs. In dealing with the data-intensive and computationally intensive spatial operations in processing massive volumes of geometric featur...

  • Article
  • Open Access
1 Citations
2,534 Views
9 Pages

8 June 2020

A vital role in the dynamics of physical systems is played by symmetries. In fact, these studies require the solution for systems of equations on abstract spaces including on the finite-dimensional Euclidean, Hilbert, or Banach spaces. Methods of ite...

  • Article
  • Open Access
816 Views
23 Pages

1 August 2025

Consider a class of coupled discrete-time Riccati equations arising from jump systems. To compute their solutions when systems reach a steady state, we propose an operator Newton method and correspondingly establish its quadratic convergence under su...

  • Article
  • Open Access
12 Citations
9,022 Views
18 Pages

Considering the large number of fractional operators that exist, and since it does not seem that their number will stop increasing soon at the time of writing this paper, it is presented for the first time, as far as the authors know, a simple and co...

  • Article
  • Open Access
1 Citations
1,134 Views
19 Pages

19 February 2025

In CNC machines, the temperature field analysis of spindle servo permanent magnet motors (SSPMMs) under rated load, overload, and weak magnetic conditions is critical for ensuring stable operation and machining accuracy. This paper proposes a tempera...

  • Article
  • Open Access
263 Views
13 Pages

8 January 2026

The reflected–forward–backward splitting (RFBS) method is well-established for solving monotone inclusion problems involving Lipschitz continuous operators in Hilbert spaces, where it converges weakly under mild assumptions. Extending thi...

  • Article
  • Open Access
2 Citations
2,400 Views
15 Pages

Large-scale, complex, and high-risk industrial systems such as nuclear power plants have developed detailed operating procedures. Under the expected conditions, the operators operate the system according to the operating procedures to avoid human err...

  • Article
  • Open Access
2 Citations
2,607 Views
9 Pages

The Newtonian Operator and Global Convergence Balls for Newton’s Method

  • José A. Ezquerro and
  • Miguel A. Hernández-Verón

2 July 2020

We obtain results of restricted global convergence for Newton’s method from ideas based on the Fixed-Point theorem and using the Newtonian operator and auxiliary points. The results are illustrated with a non-linear integral equation of Davis-t...

  • Article
  • Open Access
7 Citations
5,757 Views
15 Pages

8 May 2015

Safety control of concrete dams is required due to the potential great loss of life and property in case of dam failure. The purpose of this paper is to feed back the operational control loads for concrete dam displacement using the maximum entropy m...

  • Article
  • Open Access
12 Citations
6,913 Views
19 Pages

16 January 2015

A meshless numerical scheme combining the operator splitting method (OSM), the radial basis function (RBF) interpolation, and the method of fundamental solutions (MFS) is developed for solving transient nonlinear bioheat problems in two-dimensional (...

  • Article
  • Open Access
4 Citations
2,823 Views
25 Pages

24 February 2023

In the actual operation of urban rail vehicles, it is essential to evaluate the condition of the traction converter IGBT modules. Considering the fixed line and the similarity of operation conditions between adjacent stations, this paper proposes an...

  • Article
  • Open Access
1 Citations
1,250 Views
13 Pages

24 June 2023

Recovering the past movement of a contaminant plume from measurements of its current values is a challenging problem in hydrology. Moreover, modeling the movement of a contaminant plume backwards is an ill-posed problem due to the unstable and non-un...

  • Article
  • Open Access
2 Citations
2,320 Views
15 Pages

In this paper, a second-order operator splitting method combined with the barycentric Lagrange interpolation collocation method is proposed for the nonlinear Schrödinger equation. The equation is split into linear and nonlinear parts: the linear...

  • Article
  • Open Access
164 Citations
4,988 Views
19 Pages

10 October 2020

The theory of complex spherical fuzzy sets (CSFSs) is a mixture of two theories, i.e., complex fuzzy sets (CFSs) and spherical fuzzy sets (SFSs), to cope with uncertain and unreliable information in realistic decision-making situations. CSFSs contain...

  • Article
  • Open Access
465 Views
16 Pages

Operational Feasible Region of Active Distribution Networks Based on the Holomorphic Embedding Method

  • Jiarui Wang,
  • Jiajun Zhang,
  • Haitao Lan,
  • Haifeng Zhang,
  • Guicheng Zhang,
  • Shihan Chen,
  • Fengzhang Luo and
  • Ranfeng Mu

20 November 2025

With the increasing penetration of distributed energy resources (DERs) in distribution networks, voltage stability issues are becoming increasingly prominent, making the accurate characterization of the system’s security boundaries crucial. Tra...

  • Feature Paper
  • Article
  • Open Access
4 Citations
2,042 Views
22 Pages

28 February 2024

In the era of shrinking resources of traditional fossil fuels and the increasingly dominant sustainable development policy, actions are taken to reduce energy consumption as much as possible, assuming that we achieve identical operational goals. Thes...

  • Article
  • Open Access
6 Citations
2,545 Views
18 Pages

1 May 2021

The formalism of differ-integral calculus, initially developed to treat differential operators of fractional order, realizes a complete symmetry between differential and integral operators. This possibility has opened new and interesting scenarios, o...

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