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International Journal Science and Technology (IJST)
Published by Asosiasi Dosen Muda Indonesia
ISSN : 28287223     EISSN : 28287045     DOI : https://doi.org/10.56127/ijst.v1i2
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering
International Journal Science and Technology (IJST) is a scientific journal that presents original articles about research knowledge and information or the latest research and development applications in the field of technology. The scope of the IJST Journal covers the fields of Informatics, Mechanical Engineering, Electrical Engineering, Information Systems and Industrial Engineering. This journal is a means of publication and a place to share research and development work in the field of technology.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 93 Documents
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STUDY ON THE USE OF DATA MINING TECHNOLOGY FOR ELECTION CAMPAIGNS IN INDONESIA Maulana, Wisnu Sukma; Dwi Kartinah
International Journal Science and Technology Vol. 3 No. 1 (2024): March: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijst.v3i1.1193

Abstract

Indonesia adheres to democracy with a presidential government format. From the beginning of the reform era in Indonesia, the system of electing government representatives in the realm of council members, regional heads, and heads of state was carried out by looking for direct elections. Direct elections are carried out with several stages starting from registration, campaigning, elections, to the decision to recapitulate the winner's vote. One of the ways that candidates for election participants do is to campaign massively to the public. This campaign is expected to introduce the candidate to be the top choice of the community. The biggest challenge of this massive campaign is how much it costs compared to the reach of socialization to the community. Campaigns in conventional forms such as banners and social assistance do not necessarily make the election participants win an election, especially when the campaign funds have been enlarged to exceed the competitor who won the election. With the existence of social media, which is developing quite rapidly today such as Facebook, Instagram, Twitter (x), TikTok, and so on, election participants have used social media as an alternative and even the main campaign media. The next challenge is how the use of social media can produce significant results in the campaign of election participants. One of the sciences in the world of technology is data mining. Data mining helps in processing data to provide decision references that are in accordance with the sampling conditions of the conditions taken from the data. The purpose of this journal is about the utilization of data mining technology in helping election campaigns with social media to the factors involved in this in the current era of Indonesian democracy.
RISK ANALYSIS WITH THE HIRARC METHOD ON INSTALLATION STEEL BOX GIDER CONSTRUCTION OF ALOHA FLYOVER SIDOARJO Zahra, Karunia Az; Wateno Oetomo; Sajiyo, Sajiyo
International Journal Science and Technology Vol. 3 No. 1 (2024): March: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijst.v3i1.1194

Abstract

Research on the Aloha flyover construction project aims to determine the risks that occur in the workmanship of installing steel box girder, knowing the level of risk that occurs in the workmanship of installing steel box girder and knowing how to control the risks that occur in the workmanship of installing steel box girder. The method used in this research is the Hazard Identification Risk Assessment and Risk Control (HIRARC) method guided by the Malaysia HIRARC Guidelines (2008). Starting from identifying hazards at each stage of the work activity, a risk assessment is carried out, the results of which can be used as a reference for risk control, to reduce the risk of work accidents. The results of the analysis from the identification of hazards and risks arising in 5 stages of work and a total of 11 potential hazard findings were obtained. (1) Preparation stage for steel box girder erection maneuver; (2) The process of leveling/compacting the erection area soil for preparation of crawler crane footing/foundation; (3) The process of mobilizing steel box girder material from stockyard to erection area; (4) Installing slings + seals that will be used during steel box girder erection; (5) The process of installing steel box girder using crawler crane. The risk assessment results obtained a total of 11 potential hazard findings with details of 5 potential hazards with a percentage of risk value of 45.54% which is at a high level and 6 potential hazards with a percentage of risk value of 54.55% at a moderate level. The total number of risk level values is 132, with an average value of 12, meaning that the installation of steel box girder is at a moderate level. The results of risk control recommendations after obtaining the risk level value and analyzing the risk value, obtained 6 types of risk control in accordance with the risk control hierarchy, namely elimination, substitution, engineering control, warning system, administrative control, and personal protective equipment (PPE).
ANALYSIS OF FACTORS INHIBITING THE IMPLEMENTATION OF K3 IN CONSTRUCTION PROJECTS Ariyanti, Menik; Wateno Oetomo; Sajiyo, Sajiyo
International Journal Science and Technology Vol. 3 No. 1 (2024): March: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijst.v3i1.1195

Abstract

Low implementation of K3 in construction projects can cause the safety and health of construction workers to be given less attention, so that construction workers feel less safe and comfortable, which can result in a decrease in performance levels. The impact of non-optimal performance results in the project being carried out not being able to meet the quality requirements that have been set. Based on data analysis from observations on the Kapas-Glendeng 8 bridge widening construction project, Bojonegoro Regency, there are inhibiting factors in implementing the occupational health and safety management system, namely workforce competency, work experience in the construction sector, job training, ability to access information via digital media. , worker involvement in making regulations, understanding and awareness in wearing PPE, reporting procedures, data recording and documentation.
TIME ANALYSIS USING EARNED VALUE METHOD ON PRESERVATION OF SECTION 5 PANDAAN TOLL EXIT ROAD IN MALANG Amalia Fathimah Azh Zhahra Mughni; Hanie Teki Tjendani; Budi Witjaksana
International Journal Science and Technology Vol. 3 No. 1 (2024): March: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijst.v3i1.1228

Abstract

The development of a country's road or toll road infrastructure can be used as a benchmark to judge a country's economic development at both macro and micro levels. The location of toll exits has a significant impact on labor absorption and the creation of new business activities. Projects are dynamic, so contractors must adapt to changing project situations and conditions if they are to succeed in achieving optimal profits. Today's highly competitive aspects of construction planning require high levels of accuracy, efficiency, effectiveness and economy in project analysis. In the world of construction projects, there is much that can be done, including controlling costs. In cost control, efforts can be made so that the realization of costs incurred is consistent with implementation needs and is not excessive, such as efforts to limit costs, that is, to realize savings without does not reduce quantity or quality. The earned value method is used to determine the project's performance in terms of cost at a certain time, determine the project's performance in terms of progress/time at a point in time. certain, estimate the cost to complete the project after the evaluation period and estimate the cost to complete the project after the evaluation period. Project completion time after evaluation. In this study, the author performed a cost analysis using the earned value method for the conservation of Pandaan Malang Section 5 toll road. The schedule variance value is Rp1,652,192,521 with the time performance index value of 1.139743112 or SPI value > 1, meaning this project has arrived at week 17, the implementation is faster than planned.The estimated project completion date or Expected Schedule (EAS) is 278 days, 22 days faster than the total contract period of 300 days.
TIME AND COST ANALYSIS OF DHOHO KEDIRI AIRPORT ACCESS ROAD PROJECT USING EARNED VALUE METHOD Pramadha, Ichsan Yanuansyah; Hanie Teki Tjendani; Budi Witjaksana
International Journal Science and Technology Vol. 3 No. 1 (2024): March: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijst.v3i1.1229

Abstract

Delays in project completion are something that any project contractor must avoid. Because apart from having a negative effect on the credibility of the project contractor, delays in project completion also cause penalty costs to be borne by the contractor, so that the profits to be obtained are reduced.Earned Value Method. This method is used to determine project performance in terms of costs at one time, determine project performance in terms of schedule/time at one time, predict costs to complete the project after the evaluation time and predict the time to complete the project after the evaluation.By using this method in the Kediri airport access road construction project, it was found that the project was delayed from the plan. The ETC (estimate to complete) value obtained was the estimated budget value required for completion was IDR 17,470,510,292.77, while the EAC (estimate at complete) value obtained was the final total cost estimate. project is IDR 32,509,153,464.05. TE Value Results (Time Estimate) to complete the project to completion in 89 calendar days or 5 days later than the contract time of 84 calendar days.
ANALYSIS OF INVESTMENT IN THE DEVELOPMENT OF THE WATU ULO FISHERY PORT IN JEMBER DISTRICT REVIEWED FROM FINANCIAL ASPECTS AND SENSITIVITY ASPECTS Ratuinsani, Tati Mushalihati; Haris Muhammadun; Laksono Djoko Nugroho
International Journal Science and Technology Vol. 3 No. 2 (2024): July: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijst.v3i2.1254

Abstract

Watu Ulo Beach is a concentration of fishing communities as a place to fill supplies to catch fish at sea and as a landing place for fish catches. The local government intends to build a fishing port in Watu Ulo to improve facilities and infrastructure for fishermen in catching fish. This study aims to determine the feasibility of investment in the development of fishing ports in terms of financial aspects and sensitivity. The research method uses three scenarios for the value of income, namely the pessimistic scenario, moderate scenario, optimistic scenario. The results of the financial feasibility analysis using the NPV, IRR, BCR, and PP methods were declared feasible for the moderate scenario and optimistic scenario while the pessimistic scenario analysis results were not feasible because the IRR (6.15%) < MARR (7.72%) The results of the sensitivity analysis stated that with three scenarios on the Value of Revenue and Operating Costs obtained the results of Sensitivity The value of revenue for the pessimistic scenario is sensitive at -13.67% if it is smaller than that the investment becomes unfeasible. The revenue value for the moderate sensitive scenario is -39.96% if it is smaller than that the investment becomes unfeasible. The value of income for an optimistic scenario is sensitive at -40.75% if it is smaller than that, the investment becomes unfeasible. The revenue value for the optimistic scenario is sensitive at -40.75%, if it is smaller than that, the investment is not feasible. And if the Operating Cost Sensitivity for the pessimistic scenario is sensitive at -15.96%, if it is smaller than that, the investment is not feasible. Operating Costs for a moderate sensitive scenario at +22.67% if it is greater than that, the investment becomes unfeasible. Operating Costs for the optimistic scenario are sensitive at 25.59% if greater than that then the investment becomes unviable.
STRATEGIC OVERTIME IMPLEMENTATION: ASSESSING CRASH TIME, CRASH COST, AND COST SLOPE IN THE CONSTRUCTION OF KADIRI UNIVERSITY'S 4-STORY BUILDING Ali, Mahardi Kamalika Khusna; Tjendani, Hanie Teki; Witjaksana, Budi
International Journal Science and Technology Vol. 3 No. 2 (2024): July: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijst.v3i2.1309

Abstract

The lecture building is an important building which is the center of academic activities where educational activities are carried out. Currently, the construction of a four-story lecture building at Kadiri University is experiencing significant project delays with a deviation of 5.64% from the plan. Crash analysis can be carried out to speed up the duration of the project so that it can be completed on time with additional working hours. This research aims to determine crash time, crash costs, and cost slope for the application of overtime on the 4-story building construction project at Kadiri University. A quantitative and case study approach was used with data collected through observation, interviews, and analysis of project documents. Critical Path Method (CPM) analysis is carried out using Microsoft Project software to identify work that is on the critical path. Crashing is done by calculating crash time, crash cost, and cost slope. The research results show that applying 1 hour of overtime can speed up the project by 12 working days, with an additional cost of IDR 24,488,758. Cost slope analysis shows additional overtime costs of IDR 12,244,379. This research shows that the application of measurable overtime and crashing analysis can effectively overcome project delays in the context of building educational facilities.
EVALUATION OF TIME AND COST PERFORMANCE ON THE GX OFFICE & CO WORKING BALI PROJECT USING THE EARNED VALUE METHOD Rohim, Abd.; Witjaksana, Budi; Tjendani, Hanie Teki
International Journal Science and Technology Vol. 3 No. 2 (2024): July: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijst.v3i2.1337

Abstract

In rapid construction developments, delays still occur frequently and have not been resolved, as experienced by the GX Office & Co Working Bali project. The project will be completed in 42 weeks, but in the 27th week, there is an indication of a delay of -4.31% from the initial plan. Earned Value Method (EVM) is a time and cost performance assessment method that can be used to develop strategies to minimize delays. This research aims to evaluate the time and cost performance of the GX Office & Co Working Bali project using the EVM method. A quantitative approach is used to collect and analyze project schedules, actual costs, and progress reports. EVM key indicators such as Planned Value (PV), Earned Value (EV), and Actual Cost (AC) are analyzed to determine Schedule Variance (SV), Cost Variance (CV), Schedule Performance Index (SPI), and Cost Performance Index (CPI). The results showed that the project experienced delays, especially from week 1 to week 14 and week 19 to week 27, with SPI values mostly below 1. However, the project showed increased efficiency in cost management with values CPI above one after week 14 to week 27, indicating that the actual costs incurred are lower than the value of the work completed. These findings highlight the need for corrective actions and more effective management strategies to address delays efficiently in terms of costs.
PERFORMANCE ANALYSIS OF BUSINESS STARTUP WEBSITE USING GT-METRIX WITH WATERFALL SOFTWARE DEVELOPMENT LIFE CYCLE METHOD Erma Sova; Makmun; Siti Shifa Tasliza
International Journal Science and Technology Vol. 3 No. 1 (2024): March: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijst.v3i1.1338

Abstract

Business ventures began to expand towards technology that initially used conventional sales and payment methods, then developed by young people who saw business opportunities could be simplified in an easy way but had a lot of profit. They utilize computer technology by creating ways to sell through online, namely website media as startup business people. The purpose of the study was to analyze the performance of the "bikinian ibu" website with a http://bikinanibu.lovestoblog.com/ url address. Analysis activities in the form of measuring website speed performance, testing browser timing, testing Tab Structure, Testing Tab Waterfall in diagram form, Testing Tab History, Testing website vitals, Testing Tab Speed. The method used is the Waterfall method by following the following stages: analysis, design or design, coding, testing and maintenance. Based on the results of testing the performance of the "mother-made" website in the GTMetrix section, a Performance analysis score of 93% was obtained, CLS (Cumulative Layout Shift) has not shown good results because it exceeds the maximum standard score on CLS (Cumulative Layout Shift), the structure score covers 89% with the grade A category which means it shows good results. Website loading time also shows good results, website testing looks like there are constraints in the medium and low urgency categories. On the Waterfall tab of the website in the form of waterfall chart results there are 2 404 errors, 20 requests with a total file size of 622KB and 0.96MB for uncompressed files, while the time to load the website is 1.4 seconds. From the results of the Total Page Size of the website is 624KB, while the total page request is obtained as much as 20.
ONLINE PARENT-CHILD INTERNET ADDICTION TEST SCREENING & SCORING USING GOOGLE FORM & GOOGLE SHEET Tissa Maharani
International Journal Science and Technology Vol. 3 No. 1 (2024): March: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijst.v3i1.1447

Abstract

The use of gadgets, which has increased significantly due to technological developments and the post-Covid-19 pandemic, has negative effects that can lead to addiction, both in adults and children. Gadget addiction is characterized by a person's inability to separate from their gadget. Before being declared to have gadget addiction, a test must first be carried out by a psychologist. This test is called PCIAT (Parent-Child Internet Addiction Test), which is based on PIMU (Problematic Interactive Media Use) criteria, and developed based on the Internet Addiction Test that has been widely used in clinical assessment. Currently, the PCIAT is web-based but still in English, while the one that has been translated into Indonesian is still conducted by psychologists manually using paper, which becomes inefficient and ineffective when faced with a large number of people taking the test. This research aims to make PCIAT screening and scoring online using Google Form and Google Sheet, so that it can be easily used by professionals and the public massively at one time, quickly, and reduce the use of paper. The result of this research, the availability of online PCIAT created using Google Form and Google Sheet, which is easy to use massively and faster in obtaining and processing screening data, so that it is faster to provide the analysis needed by psychologists.

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