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Arnawan Hasibuan
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Faculty of Engineering, Universitas Malikussaleh Kampus Unimal Bukit Indah, Blang Pulo, Kec. Muara Satu Lhokseumawe
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Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN)
Published by Universitas Malikussaleh
ISSN : -     EISSN : 26567520     DOI : -
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering
The "Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN)" is a scientific publication that compiles innovative works from researchers, academics, and practitioners in the field of multidisciplinary engineering. This proceeding serves as a platform to present cutting-edge research, studies, and discoveries shared during the ICOMDEN forum, organized by the international engineering community. The proceedings cover a wide range of disciplines in engineering, including but not limited to: Mechanical Engineering, Civil Engineering, Electrical and Electronics Engineering, Computer Science and Software Engineering, Materials Engineering, Industrial Engineering, Environmental Engineering, and other related fields. Each paper published in this proceeding undergoes a rigorous peer-review process to ensure high scientific quality and impactful contributions. By integrating perspectives from various engineering disciplines, the proceedings aim to foster cross-disciplinary collaboration and provide innovative solutions to complex challenges in the field of engineering. The ICOMDEN Proceedings highlight research and technological advancements relevant to industry and society, promoting the application of sustainable engineering practices. This publication is intended to be a key reference for researchers, students, and engineering professionals to expand their knowledge and generate new ideas in addressing global challenges in engineering.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 37 Documents
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Search results for , issue "Vol. 1 (2018): Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN)" : 37 Documents clear
Analysis of Winnowing Algorithms in The Title Selection System of Job Training Report, Faculty of Engineering, Universitas Malikussaleh Rizal; Defry Hamdhana
Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN) Vol. 1 (2018): Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN)
Publisher : Faculty of Engineering, Malikussaleh University

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Abstract

The number of practical work reports that have been published by department makes a coordinator of on the job training have difficulty in determining the feasibility of the title of the on the job training report quickly. This happened because each report that was made must be unique in terms of the methods and objects that are examined in a particular institution/company. So that reports that have been published previously did not experience plagiarism. Winnowing algorithm is an algorithm used to detect the similarity of words/sentences in two or more texts that are compared. If there are two texts that are the same, a fingerprint will be formed. So that the practical work coordinator can determine the feasibility of the title of on the job training report quickly and the creation of an online-based on the job training report information system that can be accessed at any time.
Mechanical and Physical Properties of Bio-Briquette Produced from Gayo Arabica Coffee-Skin Adi Setiawan; Juwaini; Ahmad Nayan; Fauzan; Faisal
Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN) Vol. 1 (2018): Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN)
Publisher : Faculty of Engineering, Malikussaleh University

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Abstract

Enormous amount of Gayo Arabica coffee-by-products highlights its potential as source of renewable energy. Utilizing coffee skin as a raw material for bio-briquettes is considered as an effective way to minimize their wastage as landfill. This study aims to examine the characteristics of bio-briquettes produced through the cold-forming process at a pressure of 100, 150 and 200 kg/cm2 without binder. Prior to briquetting process, the raw material was sun-dried, ground and sieved to 0.841 mm. A mixture was then made by adding water followed by molding and drying processes. Characterization of the briquette employs a number of techniques including DSC, TGA, bomb calorimeter and proximate analyses as well as mechanical testing. The results show that the calorific value of the coffee-skin briquette is 4764 cal/g containing 16.5 wt% of moisture, 12 wt.% ash. The rate of combustion is 0.019 g/s with ignition time of 196 s. Varying briquetting pressure results in a change in ignition time of bio-briquettes as the density is increased. However, no significant change was observed on the rate of combustion upon increasing the briquetting pressure. This investigation concludes the potential use of coffee industry by-product as feedstock for solid
An Identification of Landslide Potential Areas by Using the Shuttle Radar Topography Mission (SRTM) Images Rahma Hi Manrulu; Aryadi Nurfalaq
Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN) Vol. 1 (2018): Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN)
Publisher : Faculty of Engineering, Malikussaleh University

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Abstract

This study aims to identify slope conditions along the shaft roads of Palopo-North Toraja using SRTM imagery related to landslide potential areas. The method used in identifying these areas comprises two approaches utilizing satellite imagery and field surveys. SRTM images are proposed to satellite imagery which was analyzed spatially by using the slope feature in the arc toolbox ArcGIS. On the other hand, field surveys were carried out by observing 19 location points which were used as observation stations in terms of recording coordinates and description of land cover, slope and landslide potential area. As the results, areas that experience cracks (landslide crawling) are founded from flat-slope to low-slope areas whereas medium-slope locations at 35,9% up to high-slope locations around 72,5% are landslides potential areas with the type of translation avalanche.
Mapping Of Soil Corrosion of Near-Subsurface Using Resistivity Method in Banda Aceh and Its Surrounding Areas Asrillah Asrillah; Marwan Marwan; Deassy Siska
Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN) Vol. 1 (2018): Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN)
Publisher : Faculty of Engineering, Malikussaleh University

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Abstract

The stiffness of foundation structures must periodically be concerned. This is very crucial to building itself. To obtain this information, the corrosion degree of near-surface soil can be investigated. This research was performed in Banda areas and its surrounding and aims to delineate the soil corrosion degree. Achieving this goal, resistivity method and pH measurement were carried out in the 14 areas consisting of Baet, Miruk Taman, Cot Iri, Lambhuk, Ulee Lheue, Punge, Deah Baro, Blang Bintang, Batoh, Lamjamee, Peukan Bada, and Lam Ateuk. For the resistivity data acquisition, the Wenner 4-pin of ASTMG57 was applied to provide soil resistivity values processed by utilizing the Res2Div software. While the pH values were probed by using the pH meter. Both data are an in-situ measurement. The processed resistivity data and pH values are combined for each area. The result shows that there are two locations predicted as the very corrosive soil which is Lamjamee and Lam Ateuk whose the resistivity and pH value of 2-6 Ωm, pH ≤ 5 and 12-20 Ωm, pH ≤ 6.31 respectively. The following types of soil are susceptible to be corrosion including Lambuk, Ulee Lheue, Punge, Batoh, Peukan Bada, and Lambaro. These potentially corrosive soils are probably influenced by moderately watered content and their pH values are normal but tend gradually to be decline by the time. The last category is non-corrosive soils existed in such areas of Miruek Taman, Deah Baro, Blang Bintang, and Lampeunerut. The whole types of soil corrosion degree are displayed on the map from which views an integral part of soil corrosive characterization.
Pidie Jaya City and Rupture Area after the Earthquake That Happened In December 7, 2016 Deassy Siska; Adi Safyan; Nova Purnama Lisa; Maryana Maryana; Sisca Olivia; Lydia Rosnita; Andrean Vesalius; Eridawati Eridawati; Asrillah Asrillah
Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN) Vol. 1 (2018): Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN)
Publisher : Faculty of Engineering, Malikussaleh University

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Abstract

Pidie Jaya has experienced a very severe earthquake on December 7, 2018. The depth of the epicenter is estimated to be approximately 8.7 km. Data processing was conducted by using Matlab and Geopsy software and mapping of Rupture and Pidie Jaya area through GIS software. It is obtained from the results of research through data signals of Pidie Jaya earthquake that the direction of earthquake rupture moving from the northern center of the epicenter to the east with a range of back azimuth value of 30.1o - 46.5o with the duration of rupture is 100 seconds. For 100 seconds the direction of the rupture undergoes a twist in the 20th seconds that is initially heading northeast in the direction of 40o from the epicenter. Rupture area is an area prone to earthquake disasters. This research can be a basic reference for the development of the pidie city spatial pattern.
Compressive Strength Of Reactive Powder Concrete Containing Bamboo Leaf Ash Yulius Rief Alkhaly Alkhaly
Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN) Vol. 1 (2018): Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN)
Publisher : Faculty of Engineering, Malikussaleh University

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Abstract

The development of reactive powder concrete as an ultra-high-performance-concrete construction material in Indonesia has a very high prospect, mainly due to the availability of local raw materials. The original RPC composition developed in the 1990s consists of Portland cement, silica fume, silica sand, quartz powder (optional), and micro steel fibers (optional). This research is an initial study of the use of bamboo leaf ash as silica fume substitution to produce RPC with local Indonesian material. In this study, RPC mixture was manufactured base on the existing of previous research. Synthesized bamboo leaf ash (SBLA) was utilized to replace 100% of silica fume content in the mix. The experimental results confirmed that replacing of all silica fume volume in the mix with SBLA is promising to be applied as pozzolanic material to produce RPC. In this study, The RPC mixture containing 25% SBLA of cement mass was able to maintain a 73.84% compressive strength of the control mix. Furthermore, a mean compressive strength of plain RPC of 63.87 MPa was developed using at 28th days standard curing with low cement content.
Bioscaffold Chitosan-Alginate For Tissue Engineering Applications Suryati Suryati; Puspita S S; Meriatna Meriatna; Azhari Azhari
Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN) Vol. 1 (2018): Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN)
Publisher : Faculty of Engineering, Malikussaleh University

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Abstract

This study aims atexamining the condition of chitosan/alginate scaffold processing for tissue engineering applications. Chitosan 90.2% DD and Ca-alginate were both dissolved in 1% acetic acid and varied by volume ratios (v/v) (80:20, 70:30, 50:50, 30:70, 20:80) . The scaffold is printed to a glass mold, allowed to stand at room temperature for 24 hours, and thenheated in an oven at a temperature of 40oC for 48 hours. The outcome of this research product was in form of non-transparent thin sheets. FTIR test results revealed a number of peaks which indicated a certain level ofinteraction between chitosan, and Ca-alginate. The thermal degradation test established that there is a reduction in the melting point of the scaffold when there is a higher concentration in the material. It also indicated that there is an increase in the decomposition point in line with an increase in chitosan. Scaffold samples are physically superior as regards the easy handling of wet conditions (fixed shape and not easily torn), and providesunexpected results in aspects of biocompatibility.
Analysis Of The Quality Level Of Patients Services In Community Health Center Baktiya Using Fuzzy Servqual Method Bakhtiar Bakhtiar; Muhammad Zakaria Zakaria; Khairul Anshar Anshar; Fitri Wahyuni Wahyuni
Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN) Vol. 1 (2018): Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN)
Publisher : Faculty of Engineering, Malikussaleh University

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Abstract

Community Health Centers Baktiya is a company engaged in services related to the patient, Thus it is necessary to improve the quality of services provided so that customers feel comfortable and satisfied, and need a method to measure the quality of health services Baktiya. The data collection steps were conducted by observing and distributing questionnaires from several criteria. The criteria are obtained through interviews and literature study. The method used to measure the quality of service using Fuzzy-Servqual. The research instrument used questionnaires with a total sample of 40 respondents, ie outpatients Community Health Centers Baktiya. The results of data processing, obtained that the value of fuzzy-servqual per criteria as a whole has a low value so that Baktiya Health Center needs to make improvements. It also shows that customer expectations are not yet in line with the perceptions of the services they receive. With these results the management of Baktiya Community Health Centers need to immediately improve the quality of service to attract patients. Patient waiting time for service to doctor's office (after registration) and patient waiting time for drug taking (after service in check room).
TF-IDF Algorithm For Weighting In Determining The Similarity Of Text In Documents Bustami Bustami
Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN) Vol. 1 (2018): Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN)
Publisher : Faculty of Engineering, Malikussaleh University

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Abstract

The grouping of research documents is needed to facilitate information retrieval. Sometimes we have to read one by one the contents of a document to be able to group it or know the existing information. This research attempts to help in finding information that exists in documents quickly. The information searching in documents by calculating the Term Frequency (TF) and Inverse Document Frequency (IDF) values on each token (word) in each document. The TF-IDF algorithm is an algorithm to calculate the weight of each word that is most commonly used in information retrieval. This algorithm is also known to be efficient, easy and accurate to get results. The accuracy of this algorithm in finding the information in a document reaches above 83,3%.
Mapping Seismic Vulnerability Index (Kg) For Earthquake Swarm Activity In Western Halmahera, Indonesia Rohima Wahyu Ningrum; Hendra Fauzi; Wiwit Suryanto; Estuning Tyas Wulan Mei
Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN) Vol. 1 (2018): Proceedings of International Conference on Multidisciplinary Engineering (ICOMDEN)
Publisher : Faculty of Engineering, Malikussaleh University

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Abstract

This research was conducted to determine seismic vulnerability index based on microtremor analysis and make microzonation of seismic vulnerability index in West Halmahera district. The microzonation is expected to be used for regional development based on earthquake disaster mitigation. The swarm earthquake that occurred in West Halmahera regency, although not significant in terms of loss of life, greatly affected the stability and capacity of the region in terms of infrastructure development. Data acquisition at the research location obtained 56 point locations. Microtremor data were analyzed using the Horizontal to Vertical Spectral Ratio (HVSR) method to obtain frequency and amplification values that can be used to calculate the value of seismic vulnerability (Kg) from a region. The results obtained are the seismic vulnerability index (Kg) value in West Halmahera Regency is 0 cm/s2 - 31341.52 cm/s2. The highest Kg value is located in Jailolo sub-district at point D10 which is 10397.1 cm/s2. This is closely related to the total amount of damage to buildings in Jailolo Subdistrict due to the earthquake in November 2015 to February 2016. Whereas for other Subdistricts classified as medium to low Kg values, it can be concluded that having a stable soil structure.

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