Journal of Advanced Engineering and Computation

Issued quarterly (4 issues per year)

JAEC Annual Best Cited Paper Award


Announcement: 2019 JAEC Best Cited Paper Award

Journal of Advanced Engineering and Computation (JAEC) has announced JAEC Annual Best Cited Paper Award for research and review articles of the JAEC. The purpose of this award is to recognize the best-cited paper published in the past three (03) years that attracts the most citations. The quantity and quality of citations of papers are based on data from ISI and/or Scopus and/or Google Scholar that tracks the paper since its first publication.

From 2017 to 2019, JAEC has published 64 research/review papers in 3 volumes and 10 issues. Top five papers with high quantity and quality of citations have been evaluated by the Award Selection Committee.

Now, it is our pleasure to announce that Winner of 2019 Best Cited Paper Award is the paper entitled "Computational cardiovascular flow analysis with the variational multiscale methods" which is published in Volume 3, issue 2, pp. 366-405, 2019 by the authors K Takizawa*, Y Bazilevs, TE Tezduyar, MC Hsu.

Congratulation on the 2019 Award Winner.

The 2020 Award will be announced in early April 2021

Award Certificate

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AIMS & SCOPE
Journal of Advanced Engineering and Computation (JAEC) is a forum for the presentation of innovative ideas, approaches, developments, and research projects in the area of advanced engineering and computation. It serves to facilitate the exchange of information between researchers and industry professionals. Multi-disciplinary topics that connect the core areas of advanced engineering and computation and its applications are also covered in this journal.

It also aims to promote and coordinate developments in the field of advanced engineering and computation. The international dimension is emphasized in order to foster international collaboration in advanced engineering and computation to meet the needs of broadening the applicability and scope of the current body of knowledge.

READERSHIP
The journal provides a vehicle to help professionals, academics, researchers and policy makers working in fields relevant to advanced engineering and computation to disseminate information and to learn from each other's work.

CONTENTS
JAEC publishes original research papers, review papers, case reports, technical notes and short communications. 

OPEN ACCESS
JAEC is a fully open access, single-blind peer reviewed, electronic and print, and a quarter-annual publication. Currently, Ton Duc Thang University is pleased to cover all publishing fees for the journal; as a result, authors do not have to pay any fees although their published papers are open to the reader.

TERM AND CONDITIONS 
JAEC publishes Open Access articles under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits use, distribution, and reproduction in any medium provided the original work is properly cited.

Call for Papers
Research Article Open Access
Anh Tuan Le , Hsiao Yi Lee
Page(s): 63-74 in Vol 8, Iss 2 (2024)
Time cited: 0

In this study, a unique high-temperature sintering process was used to create a red-emitting, non-dosage abatement K7SrY2-2xB15O30: xEu3+ (KSEBOE) (0.1 ≤ x ≤ 1.0) sample. The phosphors were suggested with the purpose of accomplishing warm and good-color-rendering white light for phosphor-conversion LED. By steadily increasing doping Eu3+ ions, K7SrEu2B15O30 (KSEBO) may demonstrate impressive photoluminescent proficiency and the greatest discharge wavelength focalized under 617 nm. Additionally, the absence of dosage abatement may result from the large range (7.012 Å) among two Eu3+ granules. The phosphor exhibited great inner quantum yield (~ 78.71%), superb hue clarity (~88.32%), as well as potent heat consistency (with discharge intenseness under 140 ◦C reaching nearly 97.31%). The strong white illumination yielding a low correlated chroma temperature (CCT) reaching 4211 K as well as chroma coordination shown as (0.3675, 0.3556) may be produced by covering BaMgAl10O17: Eu2+, (Ba, Sr)2SiO4: Eu2+, along with KSEBO above one n-UV chip. The KSEBO phosphor also demonstrated notable n-UV/blue-light scattering performance, especially at high doping concentrations (30-40%), enabling its potential to improve the color uniformity of the white LED. Shortly, the non-dosage abatement KSEBOE molecule possesses a strong chance of being a red phosphor sample for the solid-state illumination industry.

Research Article Open Access
Ho Le Huy Phuc , Dung Trung Tran
Page(s): 75-85 in Vol 8, Iss 2 (2024)
Time cited: 0
This study introduces a novel numerical procedure for conducting shakedown analysis on structures subjected to cyclic loads. The determination of safety load multipliers is achieved through the integration of the edgebased smoothed finite element method (ESFEM) and conic programming. By applying the smoothing technique, all constraints are satisfied in an average manner within the smoothing domains, as opposed to at numerous Gauss points in the Finite Element Method (FEM). This approach results in a reduction in the problem size and the number of variables. The formulated optimization problem associated with the standard form of second-order cone programming (SOCP) is addressed using highly efficient solvers. A series of benchmark examples is examined to demonstrate the computational efficacy of the proposed method.

Research Article Open Access
Syed Munimus Salam , Muhammad Mahbubur Rashid
Page(s): 86-96 in Vol 8, Iss 2 (2024)
Time cited: 0

Sedimentation instability is a significant problem of magnetorheological fluid.   In most situations, the use of different surfactants to coat iron powder is inadequate in maintaining a stable fluid and often leads to sedimentation within a few days. One of the ideal requirements for magnetorheological (MR) fluid is the preparation of a fluid with outstanding sedimentation stability.   This research explores the use of several carrier fluids and techniques to achieve a more stable magnetorheological (MR) fluid.  Orthogonal experiments are conducted to determine the most effective balance of carrier oil and additive substances. The new findings demonstrate that the most effective combination is achieved by using the produced MR fluid with the compound scheme. This final combination analyses indicate that at normal temperature the best choice has a viscosity of PaS value of 1.924 and a sedimentation rate of 1.51% after four weeks of installation. The optimal MRF exhibits superior sedimentation stability and fluidity over an extended duration. 

Research Article Open Access
Tai Thanh Phan , Cuong Dinh Tran , Martin Kuchar , Phuong Duy Nguyen , Chi Quynh Mai , Vinh Van Tran , Thong Tien Nguyen
Page(s): 97-107 in Vol 8, Iss 2 (2024)
Time cited: 0

This paper presents an improved rotor flux estimation algorithm method based on current-voltage signals applied to field-oriented control (FOC) technique in multi-domain motor speed control. This mathematical model is designed to accurately determine the rotor flux vector from the feedback signals of the current and speed sensors. The two steps of converting three-phase current signals in the real-time domain to create spatial vectors in two domains of static coordinates and rotating coordinates corresponding to the rotor flux vector will be presented in detail in the paper. The results are simulated in MATLAB/Simulink environment to demonstrate the feasibility of the typical FOC and the proposed FOC method under different operating and loading conditions of the induction motor drive. The simulation results convincingly illustrate the effectiveness of the proposed induction motor control method.

Research Article Open Access
Ali Alouache
Page(s): 108-118 in Vol 8, Iss 2 (2024)
Time cited: 0

This paper investigates trajectory tracking with obstacle avoidance of a Free-Floating Satellite Manipulator (FFSM) under the communication failure problem. The end effector of the manipulator is desired to follow the reference path of a virtual leader while avoiding dynamic obstacles in real-time. The main idea behind this work is the use of a nonlinear model predictive controller (NMPC) with a robust optimization approach to achieve the path following and real-time collision avoidance with predefined objectives subject to the input, output and obstacle constraints. While on-line quadratic programming is adopted to achieve the real-time constrained optimal control decisions over a receding horizon. However, from the practice, it emerges that the coordinates of the virtual leader may fail very often to reach the end effector of the FFSM because of communication failure problems that are caused by many practical reasons. Therefore, a polynomial fitting algorithm is implemented in the NMPC controller based on Cramer’s rule to predict the reference trajectory, which enhances the stability and robustness of the system and makes the manipulator capable to overcome efficiently the communication failure problems. The main novelty of this work is to cope with the above circumstances simultaneously in practice based on the NMPC approach, which is also found suitable to fulfill the physical limits of the system in real-time applications. At the end, the performance of the proposed approach is validated with a Matlab example, and the simulations results show the superiority and advantage of this work compared to the previous works in terms of efficiency and robustness.

Research Article Open Access
Anh-Minh Duc Tran , Tri-Vien Vu
Page(s): 119-129 in Vol 8, Iss 2 (2024)
Time cited: 0

This paper presents a novel dual-loop trajectory tracking control strategy for differential-drive mobile robots (DDWMRs). The outer loop employs feedback linearization to address kinematic constraints and minimize position and heading errors. It generates control inputs for the inner loop, which utilizes state feedback control to manage the robot's dynamics. Actuator dynamics are incorporated to improve the model fidelity. The proposed system is implemented in MATLAB/Simulink. The uncertainty of the system is added to the model by using Uncertain State Space block. The proposed controller achieved high tracking accuracy for both circular and eight-shaped trajectories. In circular trajectories, the Relative-Root-Mean-Square-Error (RRMSE) remained below 7.2% (X-axis), 7.46% (Y-axis), and 3.16% (Yaw angle) over 3 seconds. Similarly, for eight-shaped trajectories, RRMSEs were approximately 5.25%, 8.19%, and 2.83% within 2 seconds. Simulation results demonstrate the robustness and effectiveness of the dual-loop controller in handling parameter uncertainties and achieving better trajectory tracking capability.

Research Article Open Access (5220 views since : Nov 30, 2017)
Filip Zatloukal , Jiri Znoj
Page(s): 153-161 in Vol 1, Iss 2 (2017)
Time cited: 20

This paper follows our previous research in which we made a basic experiment to find out if it is possible to detect malware by multiple PE header detection. The previous results show us that there is a considerable amount of malwares that connect themselves to another file. This paper summarizes our previous results, updates the results and also expands them by adding an optimization method and also by including the scan of another (specific) types of data.

 

Creative Commons License
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Research Article Open Access (2379 views since : Sep 30, 2019)
Du Dinh-Cong , Linh Vo-Van , Dung Nguyen-Quoc , Trung Nguyen-Thoi
Page(s): 452-463 in Vol 3, Iss 3 (2019)
Time cited: 9

Modal kinetic energy (MKE) feature has been mostly employed for optimal sensor layout strategies; nevertheless, little attention is paid to use the feature to the field of structural damage detection. The article presents the extensive applicability of MKE change ratio (MKECR), a good damage sensitive parameter, to damage localization and quantification of laminated composite beams. The formulation of the parameter is based on the closed-form of element MKE sensitivity. The performance of the offered damage detection method is numerically verified by a clamped-clamped composite beam and a two-span continuous composite beam with different hypothetical damage scenarios. The influence of incomplete mode shapes, various noise levels as well as damage magnitudes on damage prediction results are also investigated. The obtained results from these numerical examples indicate that the offered method reliably localize the actually damaged elements and approximately estimate their severities, even under incomplete measurements at a high noise level.


Creative Commons License
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium provided the original work is properly cited.

 

Research Article Open Access (2291 views since : Nov 30, 2017)
Thao Nguyen-Trang , Long Vu-Hoang , Trieu Nguyen-Thi , Ha Che-Ngoc
Page(s): 123-133 in Vol 1, Iss 2 (2017)
Time cited: 0

Tax consulting service is one of various professional consulting services and is interested to study by many researchers. Nevertheless, this issue has not been interested to research in Vietnam. This paper performs confirmatory factors analysis (CFA) and structural equation modeling (SEM) to identify the factors influencing the intentions of using tax consulting services of firms in Ho Chi Minh city, Vietnam. Specifically, this paper finds that the intentions depend on the “attitude toward the behavior” and “replacement”. In addition, through Chi-square test, it can be proven that the intentions also depend on type of firms and whether they have ever used tax consulting service or not. Based on the obtained results, the discussion and recommendation are also proposed.


Creative Commons License
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Research Article Open Access (2163 views since : Jun 8, 2017)
Jaroslav Pokorny
Page(s): 04-17 in Vol 1, Iss 1 (2017)
Time cited: 6

Comparing graph databases with traditional,e.g., relational databases, some important database features are often missing there. Particularly, a graph database schema including integrity constraints is mostly not explicitly defined, also a conceptual modelling is not used. It is hard to check a consistency of the graph database, because almost no integrity constraints are defined or only their very simple representatives can be specified. In the paper, we discuss these issues and present current possibilities and challenges in graph database modelling. We focus also on integrity constraints modelling and propose functional dependencies between entity types, which reminds modelling functional dependencies known from relational databases. We show a number of examples of often cited GDBMSs and their approach to database schemas and ICs specification. Also a conceptual level of a graph database design is considered. We propose a sufficient conceptual model based on a binary variant of the ER model and show its relationship to a graph database model, i.e. a mapping conceptual schemas to database schemas. An alternative based on the conceptual functions called attributes is presented.

 

Creative Commons License
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Research Article Open Access (2096 views since : Dec 31, 2019)
Ravi Teja Velpula , Barsha Jain , Ha Quoc Thang Bui , Hieu Pham Trung Nguyen
Page(s): 551-588 in Vol 3, Iss 4 (2019)
Time cited: 9

III-nitride nanowire-based light-emitting diodes (LEDs) have been intensively studied as promising candidates for future lighting technologies. Compared to conventional GaN-based planar LEDs, III-nitride nanowire LEDs exhibit numerous advantages including greatly reduced dislocation densities, polarization fields, and quantum-conned Stark effect due to the effective lateral stress relaxation, promising high-efficiency full-color LEDs. Beside these advantages, however, several issues have been identified as the limiting factors for further enhancing the nanowire LED quantum efficiency and light output power. Some of the most probable causes have been identified as due to the lack of carrier confinement in the active region, non-uniform carrier distribution, electron overflow, and the nonradiative recombination along the nanowire lateral surfaces. Moreover, the presence of large surface states and defects contribute significantly to the carrier loss in nanowire LEDs. Consequently, reported nanowire LEDs show relatively low output power. Recently, III-nitride core-shell nanowire LED structures have been reported as the most efficient nanowire white LEDs with a record-high output power which is more than 500 times stronger than that of nanowire white LEDs without using core-shell structure. In this context, we will review the current status, challenges, and approaches for the high-performance IIInitride nanowire LEDs. More specifically, we will describe the current methods for the fabrication of nanowire structures including top-down and bottom-up approaches, followed by characteristics of III-nitride nanowire LEDs. We will then discuss the carrier dynamics and loss mechanism in nanowire LEDs. The typical designs for the enhanced performance of III-nitride nanowire LEDs will be presented next. The color-tunable nanowire LEDs with emission wavelengths in the visible spectrum and phosphor-free nanowire white LEDs will be finally discussed.


Creative Commons License
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium provided the original work is properly cited.

Research Article Open Access (2040 views since : Dec 31, 2019)
Faiza Zaamoune , Tidjani Menacer , René Lozi , Guanrong Chen
Page(s): 511-522 in Vol 3, Iss 4 (2019)
Time cited: 8

In this paper, hidden bifurcation routes to multiscroll chaotic attractors generated by saturated function series are explored. The method to nd such hidden bifurcation routes (HBR) depending upon two parameters is similar to the method introduced by Menacer, et al. (2016) for Chua multiscroll attractors. These HBR are characterized by the maximal range extension (MARE) of their attractors and coding the appearance order of the scrolls under the control of the two parameters. Moreover, these HDR have interesting symmetries with respect to the two parameters. The novelty that this article introduces, is firstly the paradigm of MARE and the formula giving their approximate value depending upon parameters p and q, which is linked to the size of the scrolls; secondly the coding of the HBR which is dened for the first time including the basic cell; and thirdly unearthing the symmetries of these routes, allowing to obtain their coding without any numerical computation.

Creative Commons License
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium provided the original work is properly cited.