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Jurnal Inotera

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Published by Politeknik Aceh Selatan

ISSN : 25487574 EISSN : 25811274 DOI : -

Computer Science & IT Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Articles 7 Documents

Search results for , issue "Vol. 4 No. 1 (2019): January-June 2019" : 7 Documents clear

Multipurpose Bench as an Alternative Infrastructure of Transportation Sandi Yudha; Ihsan Ihsan; Nuzuli Fitriadi
Jurnal Inotera Vol. 4 No. 1 (2019): January-June 2019
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol4.Iss1.2019.ID74

Sitting is one of the rest activities carried out by humans to restore energy when tired of doing activities and a bench is an infrastructure that humans use to sit when they unwind. The most important factor for bench design is a convenience for its users. While the table is an infrastructure that is used by humans to carry out writing, eating and so on. Combining bench and table concepts into one, it is very necessary to summarize the place according to its function. The literature study on this design gave rise to a new design in which a multifunctional bench is not only useful for sitting but also functions to carry out activities that require a desk.

: Utilization of GPS data in the effort of Mineral Identification in Granite Rocks Using X-Ray Diffraction in Samadua District, South Aceh Bakruddin D; Safridatul Audah
Jurnal Inotera Vol. 4 No. 1 (2019): January-June 2019
Publisher : LPPM Politeknik Aceh Selatan

South Aceh has abundant natural resources, one of which is granite rock, at Kutablang Village and Lubuk Layu Village, Samadua District. This research discusses about minerals phases using the X-Ray Diffraction method. The results obtained in the phase of the granite constituent minerals from Kutablang Village were C16AlClN16S4, O2Si, and F15Mo5O15Rb15, and the phases of the constituent minerals from Lubuk Layu Village were O2Si, F15Mo5O15Rb15 and La2Mo2O9.

Throughput Analysis on LTE Network for Multicast D2D System Fardiansyah Adami
Jurnal Inotera Vol. 4 No. 1 (2019): January-June 2019
Publisher : LPPM Politeknik Aceh Selatan

One of the features applied to fifth generation (5G) technology is Device-to-Device (D2D) communication. The D2D communication can occur directly without going through evolved Node B (eNB). Therefore, that it can reduce traffic density on cellular network communications. However, the application of D2D communication has constrained by the limited transmission distance and multi-user service at the same source. Modelling and simulating the LTE D2D multicast network using software is an effectively and efficiently ways for analyzing mac throughput. The testing of network aims to observe and to analyze the mac throughput using two parameters, the transmission distance and the number of users, based on the utilization of the Channel Quality Indicator (CQI) index. The number of user is 20 and distance is 25 meters then mac throughput in index CQI 13 greater than CQI 4 and CQI 7 is 2150.14 Kbps. But the number of user is 20 and distance is 150 meters then CQI 13 smaller than CQI 4 and CQI 7 is 271.22 Kbps. The result of simulation shows that both distance and the number of user have influence mac throughput. The selection of CQI index is the most important factor to maintain the transmission quality and mac throughput.

Design and Performance of Archimedes Single Screw Turbine as Micro Hydro Power Plant with Flow Rate Debit Variations (Case Study in Air Dingin, Samadua - South Aceh) Irwansyah Syam; Muhammad Ilham Maulana; Ahmad Syuhada
Jurnal Inotera Vol. 4 No. 1 (2019): January-June 2019
Publisher : LPPM Politeknik Aceh Selatan

Renewable energy is energy derived from nature and can be produced continuously such as water energy as a micro hydropower plant. The development of a micro hydropower plant is to utilize the potential energy of water flow that has a certain head and discharge to be converted by turbines and generators into energy electricity that can be used in the development of Archimedes Single Screw Turbines. Archimedes Single Screw Turbine is a type of turbine that is capable of operating with low head 1-15 meter in river flow and irrigation. Aceh is one of the regions that have a large amount of water energy potential to be used as energy driving water turbines. The purpose of this study is to design, make Turbine Archimedes Single Screw construction and conduct turbine testing and determine the performance of Archimedes Single Screw Turbine based on the effect of water flow discharge on rotation, torque, power, and optimum efficiency so that it can determine the right turbine design and performance well. Archimedes Single Screw turbine is made with 201 stainless steel which has dimensions of N = 1 blade (Ro= 130 mm, Ri = 70 mm) with pitch 2Ro, Turbine length (L = 2 m), head = 1 m, Angle θ = 300. The variables measured and observed are the rotation of the turbine, torque, and flow rate. Tests were carried out on 3 variations of flow rate, namely 0.02 m3/s, 0.009 m3/s, and 0.003 m3/s. The test results, the highest rotation, and turbine power occur at flowrate 0.02 m3/s at 236.40 rpm with a power of 116.10 watts and maximum turbine efficiency is 57%. Thus, the turbine with maximum power and efficiency is obtained when the flow rate is 0.02 m3 /s.

Effectiveness of the Application of Cooperative Learning Models Type Group Investigation on Discrete Mathematics Courses at Informatics Engineering Study Program of Polytechnic of South Aceh Asmaidi Asmaidi; Oktalia Triananda Lovita; Khairuman Azmi
Jurnal Inotera Vol. 4 No. 1 (2019): January-June 2019
Publisher : LPPM Politeknik Aceh Selatan

The results of student learning in the Informatics Engineering Program in the Discrete Mathematics course showed unsatisfactory results. there were 40 students who took part in the lecture. Students who get D and E scores are 18 people. the value of students who do not pass reaches 45%. In addition, student activities during the course of learning are very passive. Students only receive material delivered by lecturers and are not actively involved in learning. The problem formulation in this study is how the learning outcomes and learning activities of students are taught using the cooperative learning model type Group Investigation and conventional learning models in Discrete Mathematics courses in the Informatics Engineering Study Program in South Aceh Polytechnic?. The purpose of this study was to find out the learning outcomes and student activities while learning using the Group Investigation model. This type of research is a pure experiment with random design, pre-test, post-test. Research procedures go through several stages, namely initial observation, preparation, implementation, evaluation, and final results. The research subjects were Informatics Engineering students of South Aceh Polytechnic Semester II consist of two group, namely classes 2A and 2B. The data in this study is the test value on sequence and number series materials; and the observation of student activities during the learning process. Data collection techniques used in this study were test questions and student activity observation sheets. The analysis technique used were t-test statistical data and percentage formula. The results of the final test data analysis in both the experimental class (2A) and the control class (2B) using the t-test of two parties at a significant level α = 0.05 were obtained and . So the relationship obtained or . It can be concluded that student learning outcomes with cooperative learning model Group Investigation type are better than learning without using cooperative learning model Group Investigation type (conventional model) in Discrete Mathematics courses especially in Sequence and Series sub material in Informatics Engineering Study Program South Aceh Polytechnic. The average percentage of student activity during the three meetings was 75.40% and was in the very active category.

Ekstraksi Fitur Sinyal Facial Electromyograph (FEMG) Pada Wicara Bahasa Aceh Menggunakan Discrete Wavelet Transform (DWT) Darma Setiawan Putra; Yuril Umbu WW
Jurnal Inotera Vol. 4 No. 1 (2019): January-June 2019
Publisher : LPPM Politeknik Aceh Selatan

The facial electromyograph (FEMG) signal is a signal that occurs in the muscles of the contracted human face. This FEMG signal is one of the techniques used to study human speech recognition. It can be acquired by placing an electrode surface on the skin around the facial articulation muscle. Three types of muscles in this study are the masseter, risorius and depressor muscle. This study aims to extract and analyze the features in the FEMG signal. The extraction method is the discrete wavelet transform (DWT). The type of wavelet transform is Daubechies2 with level 5. After extraction and analysis of FEMG signals, the FEMG signal pattern for each spoken word indicated by differences in the approximation and detail coefficient of the FEMG signal. In addition, the level of difference in the FEMG signal pattern is also indicated by the histogram of the approximation coefficient of the FEMG signal. Thus, the discrete wavelet transform method can be used as one of the methods for extracting the FEMG signal feature in a human facial electromyograph (FEMG) signal.

Students Mastery Level on Introduction to Economic Subject in Industrial Engineering Program of South Aceh Polytechnic Devi Satria Saputra; Khairuman Man
Jurnal Inotera Vol. 4 No. 1 (2019): January-June 2019
Publisher : LPPM Politeknik Aceh Selatan

An introduction toeconomics is a course taught in Industrial Engineering Department of South Aceh Polytechnic, the course is taught for second year students as a compulsory subject that must be mastered by students. The writerwho has experiencedthe teaching in Industrial Engineering Department of South Aceh Polytechnic found that there were many students who found it difficult to master the courseespecially in understanding the demandsand offers. Therefore, the writer conducted research on students' mastery in introductory to the economics courseespecially in demands and offered topic of Industrial Engineering Department students. The purpose of this study was to determine the level of student mastery on the demands and offers, various mistakes made by students in understanding the concepts and various factors that cause these mistakes. The research is a qualitative descriptive study. The subject of this study was the second year students of Industrial Engineering Department. Data collection techniques are carried out by conducting tests and interviews. Data obtained and converted into predetermined mastery criteria, and then the data will be analyzed using a percentage formula.

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