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1. A hierarchical coordinated demand response control for buildings with improved performances at building group

Author:
Huang, Pei; Fan, Cheng; Zhang, Xingxing; Wang, Jiayuan
Source:
Applied energy 2019 v.242 pp. 684-694
ISSN:
0306-2619
Subject:
algorithms,   etc   ; buildings; electricity;     Show all 3 Subjects
Abstract:
... Demand response control is one of the common means used for building peak demand limiting. Most of the existing demand response controls focused on single building’s performance optimization, and thus may cause new undesirable peak demands at building group, imposing stress on the grid power balance and limiting the economic savings. A few latest studies have demonstrated the potential benefits of ...
DOI:
10.1016/j.apenergy.2019.03.148

2. Modeling the wave propagation in viscoacoustic media: An efficient spectral approach in time and space domain

Author:
Shukla, Khemraj; Carcione, José M.; Pestana, Reynam C.; Jaiswal, Priyank; Özdenvar, Turgut
Source:
Computers & geosciences 2019 v.126 pp. 31-40
ISSN:
0098-3004
Subject:
algorithms,   etc   ; computers; models;     Show all 3 Subjects
Abstract:
... We present an efficient and accurate modeling approach for wave propagation in anelastic media, based on a fractional spatial differential operator. The problem is solved with the Fourier pseudo-spectral method in the spatial domain and the REM (rapid expansion method) in the time domain, which, unlike the finite-difference and pseudo-spectral methods, offers spectral accuracy. To show the accurac ...
DOI:
10.1016/j.cageo.2019.01.022

3. Fabric defect detection algorithm using RDPSO-based optimal Gabor filter

Author:
Li, Yueyang; Luo, Haichi; Yu, Miaomiao; Jiang, Gaoming; Cong, Honglian
Source:
The journal of the Textile Institute 2019 v.110 no.4 pp. 487-495
ISSN:
1754-2340
Subject:
algorithms,   etc   ; fabrics; texture;     Show all 3 Subjects
Abstract:
... A new fabric defect detection algorithm is presented in this paper. Instead of a Gabor filter bank, an optimal Elliptical Gabor filter (EGF) is used in the proposed algorithm. For a given non-defective template image, the parameters of the optimal EGF is determined by using the random drift particle swarm optimization (RDPSO) algorithm during the training procedure. During the detecting procedure, ...
DOI:
10.1080/00405000.2018.1489951

4. Surface parameters measurement of braided preform based on local edge extreme

Author:
Xiao, Zhitao; Pei, Lei; Zhang, Fang; Sun, Ying; Geng, Lei; Wu, Jun; Tong, Jun; Wen, Jia
Source:
The journal of the Textile Institute 2019 v.110 no.4 pp. 535-542
ISSN:
1754-2340
Subject:
algorithms,   etc   ; carbon fibers; fabrics;     Show all 3 Subjects
Abstract:
... This paper proposes a local edge extreme-based method to automatically measure the pitch length and surface braiding angle of braided preforms. The Lab space transform and an artistic edge and corner enhancing filter are used first to pre-process the original acquired images. An algorithm based on local edge extreme is then used to detect corners. Finally, the pitch lengths and surface braiding an ...
DOI:
10.1080/00405000.2018.1495035

5. Accelerating a fluvial incision and landscape evolution model with parallelism

Author:
Barnes, Richard
Source:
Geomorphology 2019 v.330 pp. 28-39
ISSN:
0169-555X
Subject:
algorithms,   etc   ; landscapes; models;     Show all 3 Subjects
Abstract:
... Solving inverse problems, performing sensitivity analyses, and achieving statistical rigour in landscape evolution models require running many model realizations. Parallel computation is necessary to achieve this in a reasonable time. However, no previous landscape evolution algorithm is able to leverage modern parallelism. Here, I describe an algorithm that can utilize the parallel potential of G ...
DOI:
10.1016/j.geomorph.2019.01.002

6. Anchor assisted warping of the chromatograms: A novel procedure to correct the drifts in the chromatographic peak positions

Author:
Kumar, Keshav
Source:
Talanta 2019 v.195 pp. 543-549
ISSN:
0039-9140
Subject:
algorithms,   etc   ; chromatography; information storage;     Show all 3 Subjects
Abstract:
... The present work introduces anchor assisted warping (AAW) technique to correct the drift in the chromatographic peak positions. The proposed approach finds the suitable anchors in an automatic fashion without asking for any inputs from the user. These anchors are further used as reference peaks to correct the drifts in the peak positions. The AAW technique also reduces the computational burden and ...
DOI:
10.1016/j.talanta.2018.11.096

7. Coalitional game theory based local power exchange algorithm for networked microgrids

Author:
Mei, Jie; Chen, Chen; Wang, Jianhui; Kirtley, James L.
Source:
Applied energy 2019 v.239 pp. 133-141
ISSN:
0306-2619
Subject:
algorithms,   etc   ; game theory; trade;     Show all 3 Subjects
Abstract:
... The future distribution network may encompass a large number of microgrids, in which case local networked microgrids can be formed and all the microgrids in the network be connected to the main grid through a distribution sub-station. To improve the efficiency of the entire network rather than focusing on improving the efficiency and reliability of each microgrid, this paper proposes a coalitional ...
DOI:
10.1016/j.apenergy.2019.01.208

8. Interchange objective value method for distributed multi-objective optimization: Theory, application, implementation

Author:
Yin, Linfei; Wang, Tao; Wang, Senlin; Zheng, Baomin
Source:
Applied energy 2019 v.239 pp. 1066-1076
ISSN:
0306-2619
Subject:
algorithms,   etc   ; energy; mathematical models;     Show all 3 Subjects
Abstract:
... An analytic distributed multi-objective optimization algorithm, which is named as interchange objective value method, is proposed for distributed multi-objective optimization problems. The interchange objective value method can be implemented with two types of methods, i.e., interchange unilateral objective value method and interchange bilateral objective value method. To verify the feasibility an ...
DOI:
10.1016/j.apenergy.2019.01.149

9. Measurement of continuum percolation properties of two-dimensional particulate systems comprising congruent and binary superellipses

Author:
Lin, Jianjun; Chen, Huisu
Source:
Powder technology 2019 v.347 pp. 17-26
ISSN:
0032-5910
Subject:
algorithms,   etc   ; models; powders;     Show all 3 Subjects
Abstract:
... Continuum percolation in particle systems underlies a wide spectrum of material properties. Previous studies on the percolation phenomena of 2D particle systems focused on the random packing of some simple particles including circles, ellipses, rectangles, etc. In this work, the geometrical model of superellipses which can capture more of essential features of particle shapes from rhombuses via el ...
DOI:
10.1016/j.powtec.2019.02.036

10. An effective parallelization algorithm for DEM generalization based on CUDA

Author:
Wu, Qianjiao; Chen, Yumin; Wilson, John P.; Liu, Xuejun; Li, Huifang
Source:
Environmental modelling & software 2019 v.114 pp. 64-74
ISSN:
1364-8152
Subject:
algorithms,   etc   ; landscapes; surface roughness;     Show all 3 Subjects
Abstract:
... An effective parallelization algorithm based on the compute-unified-device-architecture (CUDA) is developed for DEM generalization that is critical to multi-scale terrain analysis. It aims to efficiently retrieve the critical points for generating coarser-resolution DEMs which maximally maintain the significant terrain features. CUDA is embedded into a multi-point algorithm to provide a parallel-m ...
DOI:
10.1016/j.envsoft.2019.01.002

11. Clustering functional data into groups by using projections

Author:
Delaigle, Aurore; Hall, Peter; Pham, Tung
Source:
Journal of the Royal Statistical Society 2019 v.81 no.2 pp. 271-304
ISSN:
1369-7412
Subject:
algorithms,   etc   ; equations; models; statistics;     Show all 4 Subjects
Abstract:
... We show that, in the functional data context, by appropriately exploiting the functional nature of the data, it is possible to cluster the observations asymptotically perfectly. We demonstrate that this level of performance can sometimes be achieved by the k‐means algorithm as long as the data are projected on a carefully chosen finite dimensional space. In general, the notion of an ideal cluster ...
DOI:
10.1111/rssb.12310

12. Computerized Seed and Range Selection Method for Flood Extent Extraction in SAR Image Using Iterative Region Growing

Author:
Chakraborty, Arunangshu; Chakraborty, Debasish
Source:
Journal of the Indian Society of Remote Sensing 2019 v.47 no.4 pp. 563-571
ISSN:
0255-660X
Subject:
algorithms,   etc   ; reflectance; remote sensing;     Show all 3 Subjects
Abstract:
... This study presents a novel method to capture the flood-affected area in SAR image. It initially locates a pixel in HH-polarized SAR image whose intensity value is equal or close to minimum intensity value in that image. This is adapted since SAR reflectance values of flooded area are less than the other regions due to the water surface smoothness that makes the flood surface a specular reflector ...
DOI:
10.1007/s12524-018-0906-8

13. Monograph on desilting basins sizes estimation for hydropower projects

Author:
Sinha, Satyajeet
Source:
International journal of green energy 2019 v.16 no.4 pp. 317-332
ISSN:
1543-5083
Subject:
algorithms,   etc   ; basins; water power;     Show all 3 Subjects
Abstract:
... At times, various analytical and empirical approaches used to estimate the initial sizing of a desilting basin in a hydropower project would give very different results and the designer has to take a call judiciously. The purpose of this study is to develop a monograph based on Teaching–Learning-Based Optimization and Gravitational Search algorithm for a practical range of depth of desilting basin ...
DOI:
10.1080/15435075.2019.1566136

14. A multi-control vehicle-to-grid charger with bi-directional active and reactive power capabilities for power grid support

Author:
Tan, Kang Miao; Padmanaban, Sanjeevikumar; Yong, Jia Ying; Ramachandaramurthy, Vigna K.
Source:
Energy 2019 v.171 pp. 1150-1163
ISSN:
0360-5442
Subject:
algorithms,   etc   ; batteries; electric potential;     Show all 3 Subjects
Abstract:
... This paper proposes a multi-control vehicle-to-grid charger with bi-directional power capability. The proposed charger can perform vehicle battery charging and discharging operations, as well as power grid support such as reactive power compensation, power factor correction, and grid voltage regulation. The performances of the charger controls were examined under various power grid scenarios. Resu ...
DOI:
10.1016/j.energy.2019.01.053

15. Load-responsive model switching estimation for state of charge of lithium-ion batteries

Author:
Tang, Xiaopeng; Gao, Furong; Zou, Changfu; Yao, Ke; Hu, Wengui; Wik, Torsten
Source:
Applied energy 2019 v.238 pp. 423-434
ISSN:
0306-2619
Subject:
algorithms,   etc   ; lithium batteries; models;     Show all 3 Subjects
Abstract:
... Accurately estimating state of charge (SoC) is very important to enable advanced management of lithium-ion batteries, however technical challenges mainly exist in the lack of a high-fidelity battery model whose parameters are sensitive to changes of the state and load condition. To address the problem, this paper explores and proposes a model switching estimation algorithm that online selects the ...
DOI:
10.1016/j.apenergy.2019.01.057

16. Mixed Pixel Decomposition Based on Extended Fuzzy Clustering for Single Spectral Value Remote Sensing Images

Author:
Kaur, Sumit; Bansal, R. K.; Mittal, Mamta; Goyal, Lalit Mohan; Kaur, Iqbaldeep; Verma, Amit; Son, Le Hoang
Source:
Journal of the Indian Society of Remote Sensing 2019 v.47 no.3 pp. 427-437
ISSN:
0255-660X
Subject:
algorithms,   etc   ; models; remote sensing;     Show all 3 Subjects
Abstract:
... The presence of mixed pixels in remote sensing images is the major issue for accurate classification. In this paper, we have focused on two aspects of mixed pixel problem: firstly, to identify mixed pixels from an image and secondly to label them to their appropriate class. In phase I, extraction of mixed pixels has been performed from the RSI images-based super-pixel algorithm and RGB model by us ...
DOI:
10.1007/s12524-019-00946-2

17. In Silico Evolution of Biochemical Log-Response

Author:
Hemery, Mathieu; François, Paul
Source:
TheJournal of physical chemistry 2019 v.123 no.10 pp. 2235-2243
ISSN:
1520-5207
Subject:
algorithms,   etc   ; chemotaxis; ligands; phosphorylation;     Show all 4 Subjects
Abstract:
... Numerous biological systems are known to harbor a form of logarithmic behavior, from Weber’s law to bacterial chemotaxis. Such a log-response allows for sensitivity to small relative variations of biochemical inputs over a large range of concentration values. Here we use a genetic algorithm to evolve biochemical networks displaying a logarithmic response. A quasi-perfect log-response implemented b ...
DOI:
10.1021/acs.jpcb.8b10974

18. Performance comparison of multiple and single surrogate models for pumping optimization of coastal aquifers

Author:
Christelis, Vasileios; Kopsiaftis, George; Mantoglou, Aristotelis
Source:
Hydrological sciences journal 2019 v.64 no.3 pp. 336-349
ISSN:
2150-3435
Subject:
algorithms,   etc   ; aquifers; kriging; models;     Show all 4 Subjects
Abstract:
... Single and multiple surrogate models were compared for single-objective pumping optimization problems of a hypothetical and a real-world coastal aquifer. Different instances of radial basis functions and kriging surrogates were utilized to reduce the computational cost of direct optimization with variable density and salt transport models. An adaptive surrogate update scheme was embedded in the op ...
DOI:
10.1080/02626667.2019.1584400

19. Numerical investigations on random close packings of cylindrical particles with different aspect ratios

Author:
Qian, Quan; An, Xizhong; Zhao, Haiyang; Dong, Kejun; Yang, Xiaohong
Source:
Powder technology 2019 v.343 pp. 79-86
ISSN:
0032-5910
Subject:
algorithms,   etc   ; powders; vibration;     Show all 3 Subjects
Abstract:
... Random close packings (RCP) of different shaped cylindrical particles under optimal vibration conditions were numerically reproduced using discrete element method. Corresponding characteristic macro and micro properties such as packing density, coordination number (CN), radial distribution function (RDF), particle orientation, orientation randomness and forces/stresses as a function of particle as ...
DOI:
10.1016/j.powtec.2018.11.014

20. Observations of dense phase pneumatic conveying using an inertial measurement unit

Author:
Lavrinec, A.; Orozovic, O.; Williams, K.; Jones, M.G.; Klinzing, G.; Clark, W.; Wang, Z.
Source:
Powder technology 2019 v.343 pp. 436-444
ISSN:
0032-5910
Subject:
algorithms,   etc   ; pellets; powders;     Show all 3 Subjects
Abstract:
... This paper presents the results of a preliminary investigation utilising an inertial measurement unit (IMU) within horizontal slug flow pneumatic conveying. Challenges of using an IMU within pneumatic conveying were discussed, in particular the importance of sensor fusion. Different sensor fusion algorithms were considered and Madgwick's filter was selected as most appropriate. Two IMUs were simul ...
DOI:
10.1016/j.powtec.2018.11.039