cover
Contact Name
Andri Pranolo
Contact Email
andri@ascee.org
Phone
+6281392554050
Journal Mail Official
aet@ascee.org
Editorial Address
Office 1 ASCEE Secretariat RUMAH KOTAK Jl. Kranginan, Mertosanan Kulon, Potorono, Kec. Banguntapan, Kabupaten Bantul, Daerah Istimewa Yogyakarta 55196, Indonesia Office 2 ASCEE Secretariat Jl. Raya Janti No.130B, Karang Janbe, Karangjambe, Kec. Banguntapan, Kabupaten Bantul, Daerah Istimewa Yogyakarta 55198, Indonesia
Location
Kota yogyakarta,
Daerah istimewa yogyakarta
INDONESIA
Applied Engineering and Technology
ISSN : -     EISSN : 28294998     DOI : http://dx.doi.org/10.31763/aet
Applied Engineering and Technology provides a forum for information on innovation, research, development, and demonstration in the areas of Engineering and Technology applied to improve the optimization operation of engineering and technology for human life and industries. The journal publishes original papers, review articles, technical notes, and letters to the editor. Authors are encouraged to submit manuscripts that bridge the gaps between research, development, and implementation. The breadth of coverage ranges from innovative technologies and systems of implementation and application development to better human life and industry. The following scope are welcome: Aerospace Engineering, Automobile Engineering, Applied Mathematics, Applied Physics, Bioinformatics, Biophysics, Biotechnology, Chemical Engineering, Chemical Physics, Civil Engineering, Computational Physics, Computer Engineering, Electrical Engineering, Electronic Engineering, Energy Engineering, Environment Engineering, Information Technology, Marine engineering, Mechanical engineering, Medical Engineering, Medical imaging, Medical Physics, Nanotechnology, Ocean Engineering, Optical engineering, Photonics, Robotics, Urban Engineering and Other related engineering topics in general.
Articles 34 Documents
The role of regionalism in the architecture of Santa Maria Assumpta Church by Y. B. Mangunwijaya C Audilia; F Kurniawan
Applied Engineering and Technology Vol 2, No 1 (2023): April 2023
Publisher : ASCEE

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1004.672 KB) | DOI: 10.31763/aet.v2i1.672

Abstract

Architecture as a science of designing, does not revolve around materials, spaces, and expressing aspirations only. The shape of the building style that changes from time to time shows the response of involvement to the surrounding environment and can be a challenge that may eliminate the characteristics of the place if it is left unnoticed. Regionalism as an approach in architecture becomes a knowledge that can be applied to express the characteristics and values of the region. The Catholic Church in Indonesia is one of the examples that has a connection with the approach, and not just related to the adaptation of local culture so it becomes familiar with the community, but also how it shows the universal church in it. Mangunwijaya, one of the architects in Indonesia, who was also a culturalist, pointed out the use of regionalism in his architectural works. This study aims to determine how far the application of regionalism in one of his works and discover his actions in implementing regionalism. The research used a qualitative approach and collected library data from various sources. The author used descriptive analytic methods in verifying elaborated theories about regionalism in the case study of the Church of Santa Maria Assumpta in Klaten by Y. B. Mangunwijaya. This research shows that the concept of regionalism can also be applied in Indonesia. The research also found the importance of applying regionalism which is not only to display the local characteristics but also to support the needs of the people in church.
How ready we are? The temporary evacuation shelter (TES) and routes distance during the September 2018 earthquake based on survivor's preference Amar Akbar Ali; Rifai Mardin; Alifi Yunar; Y A Rahman
Applied Engineering and Technology Vol 2, No 1 (2023): April 2023
Publisher : ASCEE

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (456.968 KB) | DOI: 10.31763/aet.v2i1.688

Abstract

During Palu earthquake on September 28 2018, people in the coastline area immediately evacuates to decent heights locations. Their action preference is purely based on the aim of surviving the tsunami events. This research is aim on identify, in that conditions, how the survival chooses the TES and their route to it. This research also seeking their preference of TES and Evacuation route during the normal conditions, and compare the survival preference and what is happened during the tsunami events in September 2018. The result shows that during the tsunami disaster events, only 5 out of 74 survivals preferred evacuate to the higher buildings around the coastline within te tsunami prone area, while the others preferred to move further to the higher ground on the city centre. Majority of the survivals failed to understand the important of shortened their route as what is standard demanded.
Challenges and opportunities in development sustainable transportation system in Saudi Arabia M A Dahim
Applied Engineering and Technology Vol 2, No 1 (2023): April 2023
Publisher : ASCEE

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (662.56 KB) | DOI: 10.31763/aet.v2i1.677

Abstract

This paper presents the recent development of transportation system in Saudi Arabia. Review of transportation system developed in the last three decades including air, land, sea and rail transportation. Problems raised from each mode of transportation were addressed and possible solution were provided. The results indicate that air transportation could provide the necessary needs of the Kingdom of Saudi Arabia in international connections while domestic air transportation provide limited passenger transportation for relatively long distances. This mode is limited to high income people and cannot serve short distances in effective way. Sea transportation could provide the country with freight transport but limited to passengers only in the Golf region or in the red see with some African countries. Road and highway provide the most transportation used by the public but associated with several problems such as environmental pollution, large number of road traffic accident and became the first cause of death in the Kingdom. Bus and car public transportation need essential improvement to meet the demand and save transportation for the public. Rail transportation seems to be the most sustainable transportation in future transportation in the country. Saudi Arabia late pay attention to rail transportation and recently intensive budget invested in rail transportation. Further development in rail transportation in the Kingdom is needed.
Feasibility of floating solar photovoltaic systems (FSPVs) development in Nigeria: an economic cost appraisal case study Samuel Oliver Effiom
Applied Engineering and Technology Vol 2, No 2 (2023): August 2023
Publisher : ASCEE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31763/aet.v2i2.1012

Abstract

This study focused on evaluating the economic cost viability of developing a floating solar photovoltaic systems (FSPVs) project in Nigeria, using Ikang river, Bakassi as an incident study. The FSPVs was designed using the HOMER software to satisfy full load requirements of 2426.45 kWh/day, while appraising the viability of the FSPVs in incident study. Meteorological data of the incident study location which include geographical coordinates, ambient temperature, and global horizontal irradiance were used to select a suitable FSPVs design for the cost appraisal. Lifecycle cost model was further developed to evaluate the proposed FSPVs at different project development phases. These include: predevelopment and consenting (PC), procurement and acquisition (PA), installation and commissioning (IC), operation and maintenance (OM), and decommissioning and disposal (DD). The results obtained showed that the net present cost, Levelized cost of energy, and operating cost of the project were 10,350,933.25USD, 0.90USD/kWh, and 179,164.73USD, respectively. Also, the capital expenditure (CAPEX) amassed by 81.53% of the entire project cost, while operating expenditure (OPEX) was 18.47%. Furthermore, installation, support systems, predevelopment and project management, contingencies, indirect cost, and electrical equipment were the key drivers of the project. For the lifecycle stages; PC, PA, IC, OM and DD were obtained to be 12%, 57.9%, 11.6%, 9.96%, and 8% respectively of the project cost. Thus, the incident study location has the potential for FSPVs development and has proven to be economically viable. Nevertheless, established model was suitable in appraising preliminary variations in FSPVs.
Optimization model for determining global solar radiation in the northeastern states of Nigeria using both meteorological and satellite imagery data Mohammed K. Salihu
Applied Engineering and Technology Vol 2, No 2 (2023): August 2023
Publisher : ASCEE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31763/aet.v2i2.1039

Abstract

This study presents an optimization model for determining global solar radiation in the northeastern region of Nigeria using a combination of meteorological data and satellite imagery. Ten recent models were chosen from the literature review and optimized to select the one that best fits the study region. Two models were developed to provide accurate solar radiation predictions, which can be used to improve the planning and implementation of a solar energy project in the region. The model integrates the Angstrom-Prescott model with various climate parameters such as Temperature (∆T), relative humidity (RH), location latitude (Φ), solar declination angle (δ), and the number of days in a year (n) with satellite image data to determine the global solar radiation. The finding of optimization models shows that the model10 performed very well with minimum error as Mean Base Error (0.028), Mean Percentage Error (- 0.001), Root Mean Square Error (0.098), and coefficient of determination R2 (0.994), which suggested as the optimized model for determining of global solar radiation in northeastern Nigeria. The two models were developed, that is, proposed Model1 and proposed Model2. Proposed Model1 slightly overestimated the global solar radiation with Mean Base Error (-0.863), Mean Percentage Error (-0.039), Root Mean Square Error (2.990), and coefficient of determination R2 (0.745), while proposed Model2 performed better with Mean Base Error (-0.005), Mean Percentage Error (0.0003), Root Mean Square Error (0.02) with the coefficient of determination R2 (0.985). The proposed models were validated using the suggested optimized model10 and satellite data model, which show that the proposed model can accurately determine global solar radiation in the northeastern region of Nigeria. This study's findings will benefit the region's solar energy project developers, researchers, and policymakers
New classes of exponentially general nonconvex variational inequalities Muhammad Aslam Noor; Khalida Inayat Noor
Applied Engineering and Technology Vol 2, No 2 (2023): August 2023
Publisher : ASCEE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31763/aet.v2i2.1020

Abstract

In this paper, some new classes of exponentially general nonconvex variational inequalities are introduced and investigated. Several special cases are discussed as applications of these nonconvex variational inequalities. Projection technique is used to establish the equivalence between the non covex variational inequalities and fixed point problem. This equivalent formulation is used to discuss the existence of the solution. Several inertial type methods are suggested and analyzed for solving exponentially general nonconvex variational inequalities. using the technique of the projection operator and dynamical systems. Convergence analysis of the iterative methods is analyzed under suitable and appropriate weak conditions. In this sense, our result can be viewed as improvement and refinement of the previously known results. Our methods of proof are very simple as compared with other techniques.
Implementation of a new coding scheme for improving the SET operations in Phase Change Memory (PCM) Milad Mohseni
Applied Engineering and Technology Vol 2, No 2 (2023): August 2023
Publisher : ASCEE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31763/aet.v2i2.1006

Abstract

Among Non-Volatile Memories (NVMs), PCMs are considered the best alternative to DRAM (dynamic random-access memories). As a result of its superior performance and scalability, there are several advantages over DRAM, including lower leakage and energy consumption, higher cell number, and smaller cells. This kind of memory does, however, suffer from a long write latency. In this article, we present a technique to reduce write latency by reducing the number of SET operations. The proposed method is an improved Write Time Speed-up (WTS) code scheme. In the proposed scheme, a new code based on hamming weight is given, and an appropriate algorithm is written to reduce the number of SET operations. Compared with current methods, the proposed scheme decreased SET and RESET operations by 3.9 percent, SET operations by 3.3 percent, and power consumption by 2.6 percent. Visual Basic 6 and GEM 5 simulations are used to simulate the suggested method
Optimization of a bio-based drilling fluid from waste Dacryodes Edulis (local pear) for oil exploration Precious-Chibuzo Oliver Effiom
Applied Engineering and Technology Vol 2, No 3 (2023): December 2023
Publisher : ASCEE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31763/aet.v2i3.1082

Abstract

This study focused on the development and optimization of a bio-based drilling fluid from local pear seed for oil exploration, which can help lessen the environmental impact of oil spills. Local pear seed being a biodegradable material was collected, prepared, its oil extracted, modified and optimized to obtain an eco-friendly and cost-effective drilling fluid. The selected materials used for this study was Local pear oil. The drilling fluid was characterized for proximate parameters and ultimate parameters. The prepared drilling fluid was optimized using response surface methodology (RSM) provided by Design-Expert software 13.0. Central composite design (CCD) was applied to study the variables affecting rheology of drilling fluid. The process factors which include pH (A), viscosity (B), mud density (c), temperature (D), rheology (E) interacted to produce the response (drilling fluid yield) for the studied sample. The optimized drilling fluid yield and the optimum values were obtained through iterations of one hundred (100) solutions and the best yield was selected at iteration number seven (95th solution), at a pH of 1, Viscosity of 119.783cP, mud density of 10.473kg/L, Temperature of 100°C, and Rheology of 76.809s-1, and the optimized drilling fluid yield value was 91.144%. The acidity and the alkalinity of the drilling fluid were measured by the concentration of the 9.5 ion in the fluid. Therefore, the biomaterial studied has demonstrated its optimal effectiveness and potential application as an additive for the development of drilling fluid for oil exploration.
Semi-supervised labelling of chest x-ray images using unsupervised clustering for ground-truth generation Victor Ikechukwu Agughasi; Murali Srinivasiah
Applied Engineering and Technology Vol 2, No 3 (2023): December 2023
Publisher : ASCEE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31763/aet.v2i3.1143

Abstract

Supervised classifiers require a lot of data with accurate labels to learn to recognize chest X-ray images (CXR). However, manually labeling an extensive collection of CXR images is time-consuming and costly. To address this issue, a method for the semi-supervised labelling of extensive collections of CXR images is proposed leveraging unsupervised clustering with minimum expert knowledge to generate ground truth images. The proposed methodology entails: using unsupervised clustering techniques such as K-Means and Self-Organizing Maps. Second, the images are fed to five different feature vectors to utilize the potential differences between features to their full advantage. Third, each data point gets the label of the cluster’s center to which it belongs. Finally, a majority vote is used to decide the ground truth image. The number of clusters created by the method chosen strictly limits the amount of human involvement. To evaluate the effectiveness of the proposed method, experiments were conducted on two publicly available CXR datasets, namely VinDR-CXR and Montgomery datasets. The experiments showed that, for a KNN classifier, manually labeling only 1% (VinDr-CXR), or 10% (Montgomery) of the training data, gives a similar performance as labeling the whole dataset. The proposed methodology efficiently generates ground-truth images from publicly available CXR datasets. To our knowledge, this is the first study to use the VinDr-CXR and Montgomery datasets for ground truth image generation. Extensive experimental analysis using machine learning and statistical techniques shows that the proposed methodology efficiently generates ground truth images from CXR datasets.
Development and implementation of the MobILcaps application for the teaching and development of information literacy in Higher Education David Caballero Mariscal; María Pinto; Alicia Segura
Applied Engineering and Technology Vol 2, No 3 (2023): December 2023
Publisher : ASCEE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31763/aet.v2i3.1145

Abstract

This paper aims at develop, implement and evaluate the effectiveness of the MobIlCaps mobile application. On the basis of cognitive, constructivist and connectivist theories, it has been developed on an instructional design model, based on the user experience. In the context of mobile teaching in higher education, an innovative application is proposed for the self-learning of information literacy by students of Social Sciences. With the collaboration of both teachers and students, the application was developed, following the ADDIE model, through the phases of analysis, design, development, implementation and evaluation. The last phase provided the improvement proposals for the optimization of the final version of the tool, a progressive open access website. The application is organized into six capsules that follow the framework of ACRL (2015): learn, search, evaluate, create, research and disseminate. It includes multimedia resources in the form of microcontents that highlight readability, organization and visualization as characteristics. The app focuses on the user and is a relevant instrument to facilitate teaching The different analyses, followed by proposals for improvement and revisions, led to the achievement of a very useful application for students, teachers and library

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