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Kab. aceh selatan,
Aceh
INDONESIA
Jurnal Inotera
Published by Politeknik Aceh Selatan
ISSN : 25487574     EISSN : 25811274     DOI : -
Core Subject : Science, Engineering,
Computer Science & IT Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
Arjuna Subject : -
Articles 26 Documents
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Search results for , issue "Vol. 8 No. 2 (2023): July - December 2023" : 26 Documents clear
Analysis of The Effect of Variations in Mud Content on Stability and Flow Values in Asphalt Concrete Mixtures Layer Aus (AC-WC) Safridatul Audah; Adrian Kaifah; Sulaiman AR; Meraty Ramadhini
Jurnal Inotera Vol. 8 No. 2 (2023): July - December 2023
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol8.Iss2.2023.ID232

Abstract

Aggregat mud affect the weakening of asphalt adhesion and bonds between aggregate grains which will cause damage more quickly before reaching the design age, one of which is the formation of holes in the road surface layer.The purpose of this study was to measure the effect of variations in silt content on the stability and flow values ​​of Asphalt-coated concrete mix (AC-WC). All tests were carried out using the Marshall test method and each test object became the basis for calculations to analyze the stability and flow values ​​of the AC-WC asphalt concrete mixture with variations in silt content of 0%, 5%, 10%, 15% and 20%. The optimal bitumen content used is 6.7%. Furthermore, marshall testing was carried out on variations in silt content in the aggregate to obtain stability and flow values, stability values ​​tended to decrease from 1048.64 kg to 798.96 kg, this affected the minimum stability value of ≥ 800 kg and flow values ​​tended to increase from 1.54 mm to 3.05 mm, but the discharge value still meets the required limit of ≥ 3 mm with a mud content of 13%. Based on the results of the ANOVA analysis obtained from the test, the stability value shows a significant decrease in the level of stability and the flow value shows an insignificant effect on the proportion of sludge.
Information System for South Aceh Historical Stories Sukma Achriadi; M. Arinal Ihsan
Jurnal Inotera Vol. 8 No. 2 (2023): July - December 2023
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol8.Iss2.2023.ID241

Abstract

Making this application aims to create an application that can accommodate historical stories in South Aceh in the form of a reading application that is easily accessible. The making of this application is made with a programming language that is processed into an application that contains historical stories obtained from various sources as well as from narrators or historical storybooks in South Aceh. From the development of this application, a lot of knowledge was gained from historical stories in South Aceh. Making this application produces an application that includes useful and historical stories so that all historical stories in South Aceh are not lost and forgotten and can also be accessed easily by anyone.
Optimization of Geopolymer Compressive Strength Using Response Surface Methodology Cut Rahmawati
Jurnal Inotera Vol. 8 No. 2 (2023): July - December 2023
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol8.Iss2.2023.ID242

Abstract

Geopolymers have issues related to cracking resistance and pore filling, decreasing their mechanical strength. However, the addition of nanosilica and Cellulose Nanocrystals (CNCs) has been found to enhance their mechanical properties. This study focused on optimizing the utilization of nanosilica and CNCs to enhance the compressive strength of geopolymers. This research employed Response Surface Methodology (RSM) with Central Composite Design (CCD). The concentrations of nanosilica and CNCs used in the experiments ranged from 2% to 4% and 1% to 3%, respectively. The experimental results consist of 13 runs, including 5 center point runs. The model suggested concentrations of nanosilica and CNCs of 3.98% and 1%, respectively, for an optimal compressive strength of 22.20 MPa. The proposed quadratic model exhibited high accuracy, as evidenced by an R2 of 0.9865, Adj- R2 of 0.9769, and predicted R2 of 0.9168. The closeness of R2 to 1 indicates a strong correlation between the actual and predicted values, thus highlighting the model's significant relevance. Ultimately, the model developed in this study holds the potential for predicting the compressive strength of geopolymers incorporating nanosilica and CNCs.
Comparative Analysis of Soft Pneumatic Actuator Designs for Effective Human Finger Movement: A Study on Continuous and Non-Continuous Chamber Configurations Ritonga, Syahirul Alim; Herianto
Jurnal Inotera Vol. 8 No. 2 (2023): July - December 2023
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol8.Iss2.2023.ID243

Abstract

Soft actuators show immense potential in various fields, such as wearable medical devices and the rehabilitation of stroke patients. This study aims to design and fabricate a soft pneumatic actuator (SPA) that effectively mimics human finger movements, with specific focus on post-stroke rehabilitation. Two SPA designs, referred to as M1 and M2, were developed and compared. M1 featured segmented chambers to mimic finger joints, while M2 had continuous chambers. The performance of the SPAs was evaluated based on curvature, generated force, and similarity to natural finger movement. Results showed that M1 exhibited superior curvature and achieved greater bending angles compared to M2 at the same pressure levels. This makes M1 well-suited for applications requiring high bending angles such as gripping. Additionally, M2 demonstrated the ability to mimic specific angles associated with picking-like movements. The findings highlight the potential for further research to explore the customization of SPAs for specialized tasks by modifying the number of sections and chambers. In terms of force, M2 generated slightly higher forces than M1, although the difference was not statistically significant. Overall, it is expected that this research contributes to the development of soft actuators and wearable medical devices, particularly in the field of post-stroke rehabilitation.
Influence of Service Quality on Customer Loyalty at BSI KCP Imam Bonjol, Aceh Barat Regency Nur Fajri; Ahmad Arkadius; Sri Hartati; Meri Saputra
Jurnal Inotera Vol. 8 No. 2 (2023): July - December 2023
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol8.Iss2.2023.ID244

Abstract

This study aims to determine the effect of service quality on customer loyalty at BSI KCP Imam Bonjol Kabupaten Aceh Barat. The dependent variable in this study is customer loyalty while the independent variable is service quality. The data analysis method used in this study uses the classic assumption test including the normality test, multicollinearity test, heteroscedestity test and autocorrelation test. Meanwhile, hypothesis testing includes multiple linear tests, partial t tests and simultaneous F. Based on the results of the study using the Anova test (F test) shows that the sig value <0.05, in other words H0 rejects, means that service quality affects customer loyalty of BSI KCP Imam Bonjol Kabupaten Aceh Barat.
Comparative Analysis of Custom-Designed Soft Pneumatic Actuators for Human Thumb Movement in Post-Stroke Rehabilitation Ritonga, Syahirul Alim; Herianto
Jurnal Inotera Vol. 8 No. 2 (2023): July - December 2023
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol8.Iss2.2023.ID246

Abstract

One of the most potential applications of soft actuator is as wearable medical devices for post-stroke rehabilitation as a field that requires high levels of safety and adaptability. Incorporating SPAs into such devices can provide a safer and more secure solution, ensuring controlled movements that do not pose a risk to patients. However, there is a research gap regarding the design considerations for soft actuators specifically targeting the human thumb, which exhibits distinct motion patterns compared to the other fingers. This paper addresses this gap by developing and evaluating custom-designed SPAs for the movement of the human thumb, with a focus on post-stroke rehabilitation. Three SPA models (M1, M2, and M3) were proposed, and their performance in replicating the twisting motion of the thumb was assessed. The SPAs were fabricated using 3D printing, and image processing software was utilized for measurement and analysis. The results showed that the M3 model, with two sections of chambers in different axes, exhibited the best performance in generating the desired twisting angle. Integration of the M3 model with four finger-shaped SPAs enabled successful grasping and picking-like movements. This research contributes to the advancement of soft actuators in wearable medical devices, particularly in post-stroke rehabilitation, and holds promise for enhancing patient recovery and quality of life.
Application of Quadratic Programming Using The Beale Method Shanaz Tulzahrah; Syaripuddin; Asmaidi
Jurnal Inotera Vol. 8 No. 2 (2023): July - December 2023
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol8.Iss2.2023.ID247

Abstract

Portofolio saham merupakan salah satu alternatif bagi investor dalam pengambilan keputusan investasi. Saham portofolio dapat dimodelkan ke dalam model pemrograman kuadratik dengan menggunakan mean variance Markowitz yang dapat diselesaikan dengan menggunakan metode Beale. Penelitian ini bertujuan untuk mencari hasil optimal dari portofolio saham. Data yang digunakan dalam penelitian ini adalah data saham 10 perusahaan yang membagikan dividen terbesar dalam kategori IDX High Dividend 20 untuk tahun 2022. Terdapat dua portofolio saham yang dipilih. Portofolio saham pertama adalah portofolio saham kovarians negatif dengan perbedaan tingkat return ekspektasi yang jauh berbeda, yaitu portofolio saham PT Astra International Tbk dan PT Indo Tambangraya Megah Tbk. Portofolio saham kedua adalah portofolio saham kovarians negatif dengan perbedaan tingkat return ekspektasi yang tidak jauh berbeda yaitu portofolio saham PT Bank Rakyat Indonesia (Persero) Tbk dan PT Mitra Pinasthika Mustika Tbk. Berdasarkan mean variance Markowitz, fungsi tujuan untuk portofolio saham pertama adalah Z=-1,305x_1-9,832x_2-0,137x_1 x_2+0,681x_1^2+2,358x_2^2 dengan batasan x_1+x_2≤100 dan x_1, x_2≥0. Setelah dilakukan perhitungan dengan menggunakan metode Beale, diperoleh tingkat keuntungan yang diharapkan sebesar 3,432% dan risiko sebesar 0,505% dengan proporsi optimal untuk PT Astra International Tbk sebesar 75,063% dan proporsi optimal untuk PT Indo Tambangraya Megah Tbk sebesar 24,937%. Selain itu, fungsi tujuan untuk portofolio saham kedua adalah Z=-2,426x_1-2,528x_2-0,292x_1 x_2+0,366x_1^2+0,508x_2^2 dengan kendala x_1+x_2≤100 dan x_1+x_2≥0. Dengan metode Beale, tingkat keuntungan yang diharapkan sebesar 2. 471% dan risiko sebesar 0,141% dengan proporsi optimal untuk PT Bank Rakyat Indonesia (Persero) Tbk adalah 56,077% dan proporsi optimal untuk PT Mitra Pinasthika Mustika Tbk adalah 43,923%.
Design and Application SCR Trigger Circuit for Three-phase Half-wave Controlled Rectifier with Resistive Load Effendi; Fitriady
Jurnal Inotera Vol. 8 No. 2 (2023): July - December 2023
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol8.Iss2.2023.ID249

Abstract

Power electronics is a field of science that studies and discusses electronics applications related to large-power electrical equipment, one of the sub-subject studied is the AC to DC converter such as a three-phase half-wave controlled rectifier with a resistive load in which output voltage can be controlled by adjusting the triggering delay angle of gate SCR. The components used include a three-phase step-down transformer where the output is used as a reference signal to determine the starting point (30o) and the endpoint (150o) of triggering delay angle, it is also used as a power source for the system, LM393 is used as a comparator between three-phase rectifier (Vd) with DC voltage (Vreference), likewise to compare triangular waves with DC voltages that resulting from changes in the voltage on the potentiometer in order to control the triggering delay angle (α) of SCR. The first step that must be taken to make measurements using an oscilloscope is to determine the ton and toff values for each angle by rotating the potentiometer on the comparator circuit and then measuring the average output voltage (Vo), determination the triggering angle in this research is still done manually so that the measurement results compared to the calculation has a difference this is due to the level of accuracy in observing the oscilloscope, on the other hand, the three-phase transformer and sources used are not in ideal conditions.
Sewing Service Order Information Web-Based (a Case Study at Iendandy Modiste) Sri Murni; Mizanul Ahkam; Devi Mulia Sari; Ichsan; Elfisa
Jurnal Inotera Vol. 8 No. 2 (2023): July - December 2023
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol8.Iss2.2023.ID250

Abstract

Ordering sewing services is a crucial fashion industry process requiring efficiency and easy customer access. It aims to make customer easier to place orders and improve operational efficiency for sewing service providers. Through the implementation of this system, customers can easily choose and order sewing services according to their needs through a responsive and easy-to-use web platform. Sewing service providers will also benefit from this system by improving the order process, managing orders more organized, and increasing customer satisfaction. The design of this system is built using PHP and MySQL programming languages as databases. Workflow design on this system uses DFD (Data Flow Diagram) and ERD (Entity Relationship Diagram). With this system, it can help Iendandy Modiste in increasing bookings.
Integer Programming Application to Optimize Profit of Samarinda Special Souvenir Production Lisnawati; Syaripuddin; Qonita Qurrota A'yun
Jurnal Inotera Vol. 8 No. 2 (2023): July - December 2023
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol8.Iss2.2023.ID251

Abstract

Yulia's Amplang shop is one of the businesses engaged in the culinary field in the form of souvenirs typical of Samarinda City, namely Amplang. The amplang variants produced by this store include flat fish (original), shrimp, crab, squid and seaweed. Limitations and rising raw material prices make stores often experience difficulties in optimizing production profits. This study aims to determine the number of packages in one production process for each variant produced so as to obtain maximum profit. This study used the revised simplex method and then continued with the Branch and Bound Method, which is a method used to solve linear programming problems that produce solutions in integer form. From the analysis using this method, the optimal amount was obtained as many as 317 packages per production, including 144 flat fish flavors (original), 52 shrimp flavors, 34 crab flavors, 54 squid flavors and 33 seaweed flavors with the maximum profit obtained. namely Rp. 4,125,635. The application of this method resulted in an increase in profits of 5.53% or Rp. 216,103 in one production process compared to the previous company's profits.

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