J O J A P S (mjurnal)

JOURNAL ONLINE JARINGAN PENGAJIAN SENI BINA

VOLUME 15 - 2019
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Paper 01/2019 - Performance Analysis of Pressure Reduction System (PRS) for Compressed Natural Gas (CNG) Capacity NM3/H.
Cahyo Wibowo, Iskendar & Dahmir Dahlan
Main Author from Pancasila University, Jakarta.
Abstract - In the study of the analysis of the capacity of Pressure Reduction System as a CNG gas pressure reducing device, a study of the performance of PRS was carried out on a predetermined performance standard with a standard flow rate at 100 Nm3 / h. The study analysed several factors that would influence the performance of PRS in terms of Pressure, Temperature and Joule Thompson Effect on the effect of mass flow rates. Also analyse PRS in terms of techno economy. The study was conducted in July 2018 at the PT. PGN Bekasi, West Java. The research method measures the PRS operation with a capacity of 100 Nm3 / h for 6 times and performs mathematical calculations. From the results of measurements and subsequent calculations, the analysis is done using linear regression to get more accurate research results on regression and its correlation between each parameter. In terms of techno-economics, it is conducted by using the IRR method. From the results of the analysis conducted on the performance of the Pressure Reduction System, it was concluded that the parameters of Pressure, Temperature, Flow-rate have a very significant effect on the PRS (Pressure Reduction System) performance so that it can be used to reference PRS performance with a capacity of 100 Nm3 / H at gas supply pressure 250 bar as expected.

Paper 02/2019 - Shell Thickness Design Optimization of Bio digester Tank for Organic Waste Power Plants in Tegal Regency.
Muhammad Iqbal, La Ode M. Firman, Sorimuda Harahap & Dahmir Dahlan
Main Author from Pancasila University, Jakarta.
Abstract - Biogas is a renewable energy, produced from the decomposition of organic waste in an anaerobic environment and made in bio digester tanks. This research was conducted to design a biogas digester in a capacity of 1000 m3 based on the dimensions of the tank, thickness of the shell plate, calculate the electrical power produced by biogas and also to calculate feasibility study. This experiment was performed using manual calculations, compared to API 650 and ASME VIII calculations. The results are then verified using tank design software. The results showed that the diameter, height and shell thickness of the tank base for 1000 m3 capacity were 11500 mm, 10800 mm and 10 mm respectively. The first shell plate thickness was 10 mm, the second and third shell plate thickness is 8 mm, while the fourth and fifth shell plate thickness was 6 mm. The minimum thickness of the roof plate was 6 mm. The amount of electricity produced was 3.05 MW/hour. This study conclude that the design produced effective design so that the cost of purchasing plates becomes more economical.

Paper 03/2019 - The effect of Liquidity, Capital Structure and Sales Level on the Gross Profit Margin Partially and Simultaneously at PT. Nusantara III Plantation (Persero) Medan
Laelis Neni­ & Nurlela
Main Author from Politeknik LP3I Medan.
The main goal of a company is to get the maximum possible profit from the sale or sale of services, and the profits obtained maximally. The specific purpose of this study was to determine the effect of Liquidity, Capital Structure and Sales Level on the Gross Profit Margin Partially and Simultaneously at PT. Perkebunan Nusantara III (Persero) Medan Year 2012-2016.The research method used primary and secondary data, with independent profit research variables, namely Y = Gross Profit Marign (GPM) and Dependent Variable Liquidity (X1 = Cash Ratio), Capital Structure ( X2 = Debt to Equity Ratio (DER)) and X3 = Sales and research design using quantitative descriptive and data collection techniques using observation, documentation and interviews. And the data analysis technique the author uses descriptive statistics, namely simple linear regression equation and multi regression using Classical Assumption Test, T Test, F Test and determination using SPSS tools. The results of this study are that the cash ratio (CS), capital structure (DER) and sales do not partially affect earnings (GPM) with a significant value of CS of 0.067 and DER of 0.052 and Sales of 0.86 and simultaneously have an effectively significant with a significant value of 0.50.

Paper 04/2019 - Decision Models of Purchasing food Case study: Elementary Students in Medan
Ruri Aditya Sari, Yeni Rachmawati, Fahmi Sulaiman, Iswandi Idris & Masniati Murni Ritonga
Main Author from Politeknik LP3I Medan.
Elementary school age is an unstable age which is easily affected by everything; companies do various ways to attract their attention. However, unfortunately not all products produced are good for health. In addition, the prevalence of obesity in children is increasing every year. This proves that healthy food products cannot compete with unhealthy products. This study aims to analyze the simultaneous influence of packaging, color, taste and nutritional knowledge on food product purchasing decisions for elementary students. The sample of this study was 50 elementary school students aged 8-9 years old. Data collection was carried out by distributing closed questionnaires with 5 Likert scales. The data were analyzed by SPSS 18 version, the test performed was the F test, the coefficient of determination, multiple linear regressions and determine the decision models to purchase. Based on the results of the study, it was found that simultaneously F count (262,302) > F table (5,0175), it was found that taste, color, packaging and nutritional knowledge influenced their purchasing decisions. It influenced purchasing decisions, at a significant level of 5%. Furthermore, based on the results of the analysis of the determination coefficient of 95.9%, purchasing decisions are influenced by packaging, taste, color and nutrition. The spider web purchasing decision models show that packaging and the sense of being in the position are the most influential for the purchasing decision. A number of 82% students agree that nutritional content influences purchasing decisions. This shows that providing education to students can influence decisions in purchasing food products. The results of the study can be used as a source of information for food product entrepreneurs in conducting promotions to attract the elementary students market.

Paper 05/2019 - Analysis of Cutting, Depositing and Reporting of Income Tax Article 4 paragraph (2) for Construction Services at PT Pelabuhan Indonesia I (Persero)
Laelis Neni  & Hasbiana Dalimunthe
Main Author from Politeknik LP3I Medan and Universiti Medan Area.
The purpose of this research is to determine the suitability of cutting, depositing and reporting PPh Article 4 paragraph (2) for Construction Services at PT Pelabuhan Indonesia 1 (Persero) with Law Number 36 of 2008. This research was conducted from January to March 2019. Types of data used in this study are primary data and secondary data, while the method of data analysis is descriptive qualitative. Based on the results of the study, it was found that the deduction, depositing and reporting of Income Tax Article 4 paragraph (2) for construction services were in accordance with Law Number 36 of 2008 concerning income tax. The rates charged by PT Pelabuhan Indonesia 1 (Persero) are in accordance with the applicable tax rates based on the classification of the company. PT Pelabuhan Indonesia 1 (Persero) conducts tax deposits with BNI Direct, while reporting since 2017 uses the online DGT feature, e-filing.

Paper 06/2019 - The Satisfaction of The Employee (Case of Study : PT. PEGADAIAN (PERSERO))
Neni Triastuti, Fahmi Sulaiman, Yeni Rachmawati, Asmaul Husna & Maulidina
Main Author from Politeknik LP3I Medan.
Human resources in the company have a very important role that needs to be managed and maintained properly, in addition to managing, the company must also pay attention to employee job satisfaction. This research is written to find out how the level of job satisfaction of employees at PT. Pegadaian (Persero). This study uses data collection methods through a questionnaire which given to all employees, totaling 30 people, and using quantitative methods by using the average (mean) as an analysis of the data. The results showed that the highest indicator is the loyalty indicator which hav an average value of 4.27 and it is classified as very high interval, while the lowest indicator is the salary level with an average of 3.79 and is classified as high. Overall, the results show us the high / good intervals.

Paper 07/2019 - Work Environment and the Work Discipline, Its Effects on the Employee’s Performance
Endang Haryati, Fahmi Sulaiman, Asri Sanusi, Kiki F. Ferine & Suhendi
Main Author from Politeknik LP3I Medan.
Human resources in the company have a very important role that needs to be managed and maintained properly, in addition to managing, the company must also pay attention to employee job satisfaction. This research is written to find out how the level of job satisfaction of employees at PT. Pegadaian (Persero). This study uses data collection methods through a questionnaire which given to all employees, totaling 30 people, and using quantitative methods by using the average (mean) as an analysis of the data. The results showed that the highest indicator is the loyalty indicator which hav an average value of 4.27 and it is classified as very high interval, while the lowest indicator is the salary level with an average of 3.79 and is classified as high. Overall, the results show us the high / good intervals.

Paper 08/2019 - Data Processing System for Household Gas Usage by Rapid Application Development Method in PGAS Solution Medan Based Online
Mohd.Ideal Kurniawan, Rizaldy Khair, Khairunnisa Almadany, Nurlela & Imamati Zikra Ar Rusyfa
Main Author from Politeknik LP3I Medan.
PT. PGAS Solution (PGAS Solution) is one of the government agencies dedicated to focus on the technical and operational aspects in the gas field. PT. PGAS Solution is found in several cities in Indonesia, one of which is in Medan City. One of the works carried out by PGAS Solution is to record household gas usage. From these activities encountered obstacles in terms of recording the calibration of household meters needed every month with the latest data, this is due to the manual recording done by PGAS Solution company employees in the field. Based on the existing problems, the design of an online-based household gas recording management application system is a solution that can help employees in completing these tasks. The purpose of this study is to develop online-based applications for recording more flexible gas usage. For this reason, it is necessary to build an information system. The information system design applies the Use Case diagram concept as a description of the system to be created and will be developed using MySQL as a database and Flowcahrt system as the program flow. The research methodology used is Rapid Application Development (RAD) as a benchmark in making systems to speed up the process of emphasizing development time. The results of this study are the design of an online-based application system with a web service so that it can accelerate the process of recording household gas usage at PGAS SOLUTION Medan. The benefit of this research is that it facilitates the work of employees in processing a more flexible recording of household gas usage. This application must be maintained and back up data to avoid damage. The output of this research is, the publication of the National Journal of Non-Accredited / Accredited which up to the national seminar will be conducted in the first year.

Paper 09/2019 - Comparative Study of Consumer Perceptions on Consumer’s Buying Interest as the Impact of Traditional Market Revitalization in Medan
Iwan Kesuma Sihombing, Ika Sari Dewi  & Zubaidah Hanum
Main Author from Politeknik LP3I Medan.
The revitalization program in traditional markets is carried out by 4 (four) principles, they are: the condition of the physical market, managerial system, social, cultural, and economic. In general almost all traditional market areas are lacking in good market management arrangements. Many people complained about the uncomfortable condition of the market, the lack of orderliness of traders in trading and transactions, unstandarized dirty water channels, and the improper condition of public toilets. After the revitalization of the traditional market program, the consumers' buying interest is increased, consumers were satisfied with the condition of traditional markets related to the environment, parking areas, toilets, the quality of the products as well as the services provided by traders. The purpose of this study is to compare the influence of consumer perceptions on consumer buying interest as a result of the revitalization of traditional markets such as  the Sei Kambing Market, Kampung Lalang Market, and Suka Ramai Market in Medan. The sampling technique uses area sampling. Respondents in this study are the society of Sei Sikambing B Village, Suka Ramai II Village, and Kampung Lalang village, especially those who have shopped more than once and aged 18 - 60 years old. The samples used 280 respondents with details of 98 respondents of Sei Kambing Market, 90 respondents of  Kampung Lalang Market and 92 respondents of Suka Ramai Market. The Method of this study is a quantitative descriptive method with stages of research conducting normality test and validity of data, determining the effect of consumer perceptions on consumer buying interest with a simple regression test. The results obtained that there are differences in consumer perceptions before and after revitalization in 3 traditional markets. It shows that the influence of consumer perceptions on consumer buying interest as the impact of the biggest revitalization is on the Kampung Lalang Market with 0.85% if consumer perception increased 1%. Meanwhile, the percentage for Sei Kambing Market is 0.346% and the Suka Ramai Market is 0.285%.

Paper 10/2019 - THE INFLUENCE OF LECTURER COMPETENCIES AND ACADEMIC QUALIFICATIONS OF STUDENT LEARNING OUTCOMES WITH TEACHING MOTIVATION AS INTERVENING VARIABLES (Case Study at LP3I Medan Polytechnic Students)
MayangMurni, M. Imaduddin, Lily KarlinaNasution, Ika Sari Dewi
Main Author from Politeknik LP3I Medan.
The purpose of National Education is to create the qualified human beings. In order to improve and produce human resources, it cannot be separated from the performance of all lecturers as the core of the teaching and learning process. Lecturers are the main actors and key points in the whole education process especially in higher Education.The purpose of this study is to determine the effect of Lecturer Competencies, Academic Qualifications and Teaching Motivation against Student Learning Outcomes at LP3I Medan Polytechnic. This study was conducted in LP3I Medan Politechnicof 45 respondents. This study uses quantitative descriptive method. Data analysis in this study uses multiple linear regression analysis. The results show that partially the Lecturer Competencies variables and Academic Qualificationsvariables influencethe Student Learning Outcomes and simultaneously both have a significant effect on Student Learning Outcomes. Meanwhile, the Lecturer Competencies variable partially has a significant influence on teaching motivation, while the Academic Qualifications variable has no influence on teaching motivation. And simultaneously Lecturer Competencies variables and Academic Qualifications significantly influence teaching motivation. Furthermore, intervening variables testing ofteaching motivation can mediate the influence of Lecturer Competencies on Student Learning Outcomes. While testing intervening variables of teaching motivation cannot mediate the influence of Academic Qualifications on Student Learning Outcomes.

Paper 11/2019 - THE ROLE OF PLANTATION SECTOR ON REGIONAL INFRASTRUCTURE IN NORTH SUMATERA PROVINCE
Lily Karlina Nasution, Lestari & Masniati Murni Ritonga
Main Author from Politeknik LP3I Medan.
North Sumatra Province is one of the five largest oil palm producing in Indonesia, it deals with with the considerable contribution in the plantation sector which is a major driver in the economy in North Sumatra with superior commodity palm oil however, its growth is still low. This research aims to determine the role and position of the agricultural sector and the plantation sub-sector towards regional infrastructure in North Sumatra Province. This research conducts quantitative methods by using contribution analysis, Location Quotient (LQ), Dynamic Location Quotient (DLQ) and income multipliers. In 2016 the plantation sector contributed 24.90% to the total North Sumatra Province GRDP which can be used as a benchmark in regional development in terms of economic growth, with two agricultural subsectors that also have the largest contribution, namely the annual plantation subsector with the value of contributions 13.34% and followed by the food crops sub-sector 3.84% of the total GRDP. By one of the leading commodities in the annual plantation subsector in North Sumatra, namely oil palm. The position of the plantation sector in 2016 remains in the base sector and in the future it can still be expected to become a base sector. When it is seen from the value of the plantation sector income multiplier in 2016, a value of 81.82 was obtained, which means that each one-dollar income in the agriculture sector would have an effect on income changes in the province of North Sumatra, where most of the regions are mainly in rural areas. Most of the people work in the agricultural sector with 44.50 percent of workers.

Paper 12/2019 - Design of Basic English Grammar Learning Media System with Application-Based Blended Learning Method (Startup)
Rizaldy Khair, Imamati Zikra Ar Rusyfa, Ramadani & Andrysyah
Main Author from Politeknik LP3I Medan.
English is an international language that is currently most often used in various aspects ranging from aspects of industry to aspects of education, workers to students. But not all individuals from these circles can master English well, due to lack of willingness to learn to learning media that are easy to understand and use. English learning is divided into several levels, namely Basic, Middle, to Expert (conversation). The most frequent mistakes in learning English are at the initial level, namely the basic level, this level discusses grammar, not everyone can use grammar properly, especially among students. Grammar is very important to learn and master, because it will often be used when making assignments in English or if students want to continue their level of education in foreign universities. From this problem there are also limitations to the existing learning media in the education community, for example, at this time still often used the method of learning in the past (conventional), namely face-to-face learning conducted by teachers / lecturers to students / students. Along with advances in technology, some teaching staff have begun to adapt to the future of learning media, namely computer-based learning media (online) which is often called ¬E-Learning, this learning media can be done anywhere, anytime, and anyone. Of the two learning methods there are currently many shortcomings, if a teacher only focuses on one method, the learning objectives will be difficult to achieve. Therefore, at present the merger of the two methods is often referred to as the Blended Learning method. The development of information and communication technology that requires innovation and transformation in learning. Learning media innovation with Blended Learning method which is often also referred to as a hybrid course (combination of learning), can be implemented into an application-based system that will facilitate users in learning Basic English Grammar. The purpose of this research is to make it easier for students to master English, especially in Basic English Grammar with Blended Learning methods using an application-based system (startup) that can be run anywhere, anytime, and by anyone through an Android-based smartphone. In this application system Blended Learning methods are applied which can later be accessed by teachers / lecturers to students / students. In this application system implementation will facilitate the way of learning of students in learning Basic English Grammar consisting of adverbs, tenses, modals, conditionals, to gerunds and infinitives, by directly contacting the teacher who uses the application to explain the material that is not yet understood to work on the exercise questions in it. The results of this study are Application-based Systems (startup), and will be published in national / international journals, accredited or not accredited as the outcomes to be achieved from this research.

Paper 13/2019 - Employee performance affected by training of the Public  Company in logistics in Medan
Irwanto, Niken Ayu Agnesya, Agnita Yolanda, Iswandi Idris & Ruri Aditya Sari
Main Author from Politeknik LP3I Medan.
This study discusses about the Employee performance affected by training of the Public  Company in logistics in Medan. With the aim of obtaining results about how much the effect of training on the performance of employees of the Public  Company in logistics in Medan. This study uses a quantitative descriptive method, with data obtained through field observations and distributing questionnaires to the employees of the Public  Company in logistics in Medan. The population in this study were 80 employees who were dominated by male sex, amounting to 41 people (53.3%) while women numbered 39 people (48.8%). After the data is obtained then it is processed using the SPSS Version 18 program with the results concluded that there is a high enough effect. This is evidenced by the average value of the indicators in the variable which shows the number 57.5 of the highest indicators. So that with the training that has been done by the Public  Company in logistics in Medan for its employees is very good so that it gives a significant influence to the progress of the performance - the performance of employees of the Public  Company in logistics in Medan. From the test results of the coefficient of determination, it is evident that employee performance is influenced by job training by 59.2% while the remaining 40.8% is influenced by other factors not examined in this study. In the results of the t test, it is proven that there is a significant effect between the independent variable (training) on the dependent variable (employee work performance), this is evidenced in the value of t count (10.753)> t table of (1.990) and the probability shows 0.001 <0.05.

Paper 14/2019 - Analysis of OCR Setting and GFR 20kV Power Transformer Substation, Kualanamu, North Sumatera
Indra Roza, Faisal Irsan Pasaribu, Muhammad Fadlan Siregar, Syafriwel & Jhoni Hidayat
Main Author from Universitas Harapan Medan.
Protective relay is a tool which works automatically to adjust input of an electrical circuit that is trip or alarm due to interference, in order to secure and prevent damage to equipment due to interference. PT. PLN (State Electrical Company) is as the only State-Owned Enterprises in supplying of electricity with the level of good quality, continuity, reliability, and efficiency. To solve the disruption installed security equipment that is to relate between the safety equipment with the relay is necessary to localize the disturbance area and maintain reliability of the electrical system. By having the research on the data setting and test results from OCR and GFR, so the current settings obtained (Iset = 1030 A) and (Io = 100 A) is incoming, Power transformer 2 is bigger than Repeater (Iset = 720 and Io = 60 A ), The setting is longer (2,4107 seconds compared 1,446 seconds), the value of the OCR Relay (Is) relay settings obtained from the calculation result, the data setting, and the test results on the maintenance can be said to have the same result that is primary = 1 A and secondary 1 A The value of the GFR (Io) current relay setting on the test result and the setting data have a value smaller than the count of Z (0.5: 1- 1,5) Ampere. This result is caused in calculating based on P3B Java Bali, the overall setting of OCR and GFR in substation can be concluded in good condition and meet the standards.

Paper 15/2019 - Productivity and Marketing of Muslim Clothing Industry Ummu Syuraih
Lily Karlina Nasution, Ika Sari Dewi, Mayang Murni
Main Author from Politeknik LP3I Medan
Intense competition requires MSMEs to be active in innovating in terms of products, marketing and business development. MSME Ummu Syuraih produces Muslim clothing including muslim dress, khimar and niqab. MSME Ummu Syuraih also having some problem in running its business, including manual financial management, limited human resource and production machine capabilities, using traditional marketing strategy and packaging of the product are less attractive. Because of these problems, a business development process will be carried out by focusing on: 1) managing the business financial management professionally, 2) increasing product capacity through enhancing the expertise and skills of human resources, 3) expanding the product marketing network through an appropriate marketing mix strategy, 4) improve the display of the packaging of the products. In order to support the development effort, the steps that must be taken are to provide training (sewing skills, marketing management, financial management by using application and website), assistance (how to use the application and website), and tool grants. Based on the implementation and evaluation, it can be concluded that this business can run professionally and there is an increase in production and sales capacity due to the increasing of customers’ demand.

Paper 16/2019 - The Implementation of FIACS in English Classroom Interaction
Masniati Murni Ritonga, Zubaidah Hanum & Ika Sari Dewi
Main Author from Politeknik LP3I Medan
This study investigated the realization of FIACS in English Classroom interaction at Polytechnic LP3I Medan. The study was conducted by qualitative content analysis method. The data were taken randomly from the utterances uttered by English lecturers at Polytechnic LP3I Medan and gathered from two different sessions, and then they were transcribed. The transcriptions were analyzed by applying qualitative method based on the Theory proposed by Flanders (2010). The findings found that all types of teacher talk were deployed by all lecturers. The most dominant types of teacher talk deployed by the lecturers were giving direction in form of direct talk. There were some reasons of deploying Teacher Talk as he is such as the lecturers, his role in the classroom interaction to direct students to be active and participate in the classroom interaction. Therefore, context of teacher talk plays the main role to create practical students who are ready to the real life and job requirement. Regarding to the realization of the teacher talk itself, the students responded actively to the lecturers’’ talk, in short the lecturers realized giving direction dominantly in sense of creating an active interaction between lecturers and students and vice versa.