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INDONESIA
Liaison Journal of Engineering
Published by Universitas Lintas Internasional Indonesia
ISSN : 28095243     EISSN : 28095243     DOI : -
Core Subject : Science, Agriculture, Engineering,
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT
including all the engineering scope that publishing by International University Liaison Indonesia (IULI University) and a scientific journal of computer science and engineering that contains the results of research or the latest research surveys that will publish regularly
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 43 Documents
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Studi Awal Resiko Pertambangan Batubara topo suprihadi
Liaison Journal of Engineering Vol. 2 No. 2 (2022): Vol 2, No 2, Desember 2022
Publisher : Liaison Journal of Engineering

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Abstract – Indonesian national energy policy in primary energy supply, targeted contribution of coal in the energy mix by 30% in 2025 which is equivalent to 171.6 x 109 kg of coal and at least 25% equivalent 357 x 109 kg of coal in 2050. Coal mining is a high risk activity for humans, nature and the environment. Therefore, the government program should be escorted by an accurate mitigation scenario. A risk analysis study of coal mining activities have been conducted with the aim of identifying the risk parameters to be taken into consideration in the preparation of adequate mitigation scenario. By using statistical data on coal mining in the United States, has studied a variety of typical coal mining accident, which is dominated by the mine explosion, collapse and subsidence and Suffocation. Coinsidence various causes predictable aggravate accidents. Interference environmental conditions, such as the decline of biodiversity through species extinction, soil and coal dust pollution in the environment, acid mine water pollution, subsidence, erosion, landslides, sedimentation of water bodies will be serious repercussions in mining. Principialy these study are a 'lessons learned; that needs to be sharpened with actual data’s from Indonesia Key Word : Coal, Coal Mine, Surface Mining, Underground Mining, Risk, Accident, Environmental Effects, Disaster, Mitigation.
Implementation Of Autonomous Maintenance On Maintenance Of Three-Phase Slip Ring Induction Motor Used In Rubber Internal Motor Mixer farhan mahaputra rahman; sentot wahjoe goeritno
Liaison Journal of Engineering Vol. 2 No. 2 (2022): Vol 2, No 2, Desember 2022
Publisher : Liaison Journal of Engineering

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Abstract

The autonomous maintenance strategy involves the use of proactive maintenance techniques, to identify potential issues along with root causes within the motor. The maintenance strategy includes the development of degrees of maintenance actions to be done in the form of a schedule for routine maintenance tasks, such as cleaning, lubrication, and inspection, as well as the implementation of corrective maintenance procedures to address any identified issues. The effectiveness of the implemented strategies is evaluated through performance monitoring from prior and after the implementation of autonomous maintenance. Overall, the results of this study demonstrate the importance of implementing effective maintenance strategies for the reliable operation of three-phase slip ring induction motors in rubber internal mixers. By implementing these strategies, it is possible to prolong the lifespan of the motor and ensure the smooth operation of the mixer. Keywords: Three-Phase Induction Slip Ring Motor (3p-SR-IM), Rubber Internal Mixer (RIM), Autonomous Maintenance (AM), Maintenance Strategy, Proactive Maintenance
Building a Comprehensive Content Management System with NPM, Vue.js, Node.js, Postgresql, and Strap nashri aziz alhazmy; zahran nurafi chandra; pradana atmadiputra; yudi triyana
Liaison Journal of Engineering Vol. 3 No. 1 (2023): Volume III
Publisher : Liaison Journal of Engineering

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This article presents a content management system built using NPM v6.14.17, Vue.js v3.x, Node.js v14.20.1, Postgresql v13.2.1, and Strapi v3.6.6. The system provides various functionalities such as an Ongoing request and assessment dashboard, courier request management, meeting room booking, stationery management, tools request management, and transportation request management. Users can create requests for different categories and the admin can approve or reject requests. Additionally, the system allows users to generate reports on stock flow, courier activities, and driver assessment. The Master Data section enables users to view, search, and perform CRUD operations. The system offers a comprehensive solution for efficient content management. Keywords: content management system, NPM, Vue.js, Node.js, Postgresql, Strapi, dashboard, request management, admin approval, report generation, master data, CRUD operations.
Evolution and recent progress of Computed Tomography Scan (CT- Scan) yosafat valdino; jonannes a. pradana; niken t. listyorini
Liaison Journal of Engineering Vol. 3 No. 1 (2023): Volume III
Publisher : Liaison Journal of Engineering

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The CT Scan (Computed Tomography) has been an integral instrument for the medical field to observe and diagnose patients. Throughout time, the CT scan has been developed over generations; from the first and up to the seventh generation. These developments were to ensure a shorter duration of scan-time (from 25 minutes down to a matter of a few seconds), higher resolution of imaging with low levels of noise, simple and quick to calibrate, and reduce the radiation dosage on the patients. One key development of the CT scan is the invention of multi-slice. This generates clearer images with better resolution compared to the previous generations. The CT scan is still developing as a technology, and looking towards the future, more compact designs of the CT scanner are being developed and the design is being streamlined to allow automation of the process. Keywords: CT Scan; Report; Liaison Journal of Engineering; International University Liaison Indonesia
Pengaruh Kualitas Produk, Brand Ambassador, dan Kepercayaan Konsumen Terhadap Keputusan Pembelian Produk Azarine Cosmetic Pada Generasi Z sulistining trimulyani; aqilah regitha dhea shafera
Liaison Journal of Engineering Vol. 3 No. 1 (2023): Volume III
Publisher : Liaison Journal of Engineering

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Tujuan penelitian ini adalah untuk menilai kepercayaan konsumen, duta merek, dan kualitas produk terkait dengan keluhan pembelian Azarine Cosmetics Gen Z. Sebagai titik awal analisis dalam penelitianan menggunakan regresi garis berganda, uji t parsial, uji F simultan, normalitas, multikolinearitas, heteroskedastisitas, dan koefisien determinasi (R2) diselidiki. Penggunaan model kuesioner dalam pengumpulan data dalam penelitian ini menggunakan sampel responden sebanyak 100 lebih. Purposive sampling, sejenis non-probability sampling, digunakan dalam penelitian ini sebagai metodologi pengambilan sampel. Sebagai alat analisis data peneliti menggunakan perangkat lunak SPSS dengan versi 25. Hasil analisis regresi, Y = 4,657 + 0,232X1 + 0,141X2 + 0,422X3, menunjukkan bahwa kualitas produk sensitif terhadap keluhan pelanggan, dan duta merek juga sensitif terhadap keluhan pelanggan. Item Azarine Cosmetic dipilih oleh konsumen Generasi Z berdasarkan tiga faktor: kualitas produk, duta merek, dan kepercayaan konsumen. Keywords: Kualitas Produk, Brand Ambassador, Kepercayaan Konsumen, Keputusan Pembelian
The Development of Covid-19 Dashboard Application for Monitoring the Covid-19 Infections in Indonesia abraham mahanaim; salma aziizah novrian; normalisa
Liaison Journal of Engineering Vol. 3 No. 1 (2023): Volume III
Publisher : Liaison Journal of Engineering

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In this Era where global pandemic is rampant, there is a need for accurate and up-to- date information for people to know, understand and monitor the movement of the virus. This abstract will explain about COVID-19 Dashboard app design to visualize the COVID-19 infection data, this dashboard can be used to monitor and also analyze pandemic impact in Indonesia. This app uses COVID-19 csv data sourced from trusted Indonesian Organization to present reliable data so the app can present statistical data such as the number of confirmed cases, deaths, recoveries, and other insight related to pandemics. By using interactive sidebars users can explore the data or change the type of graphs. This app aims to be able to help individuals, travelers, healthcare professionals, and others to gain insight regarding pandemic situations in Indonesia and also hopefully increase the situational awareness of each individual. Keywords: Covid-19; Monitor Dashboard; Paper; University Liaison Indonesia
Identification of Performance Variables For Design of Development Strategies Private Higher Education (Case Study, Indonesian Institute Of Technology) abdul haris lahuddin
Liaison Journal of Engineering Vol. 3 No. 1 (2023): Volume III
Publisher : Liaison Journal of Engineering

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The purpose of this study is to obtain the characteristics of the dominant performance variables in relation to the development strategy of Private Higher Education (PTS). The expected output from the research results is a priority ranking of the most influential performance factors in the development strategy of the Indonesian Institute of Technology. In this study, the design of a development strategy was carried out using the Space Matrix analysis method and SWOT analysis to produce a Grand Strategy where the PTS-ITI strategic position lies in the Strengths Opportunities (aggressive strategy) position. Data processing uses factor analysis to identify the dominant performance variables, where there are 26 variables that are prioritized as a priority in implementing strategies so that the attainment of predetermined organizational goals can be more effective and successful. Keywords: Performance Variables, Factor Analysis, Space Matrix Analysis, SWOT, Grand Strategy.
INVESTIGATION OF PHYSICAL AND CHEMICAL PROPERTIES OF CITRONELLA OIL FOR DETERMINING THE CONCENTRATION OF CITRONELLAL COMPOUND andry tiawan; tutun nugraha; niken t. listyorini
Liaison Journal of Engineering Vol. 3 No. 1 (2023): Volume III
Publisher : Liaison Journal of Engineering

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This journal explores the physical and chemical properties of citronella oils extracted from Cymbopogon species, known for their insect-repellent qualities, essential oils and cosmetic applications. The aim is to determine the relation between concentration of citronellal and its properties for further research. The study analyzes density, refractive index, color, solubility, and utilizes GC-MS analysis. Different citronella oil samples with varying citronellal compositions are examined. The results show variations in properties among samples with different concentrations. Density and refractive index had the potential for determining citronellal concentration. GC-MS analysis identifies and quantifies components, with a focus on citronellal. The refractive index is inversely proportional to the concentration. The relation between the value of refractive index and citronella concentration is (y = -0.0002x + 1.4773) with R2 = 0.9934. Refractive index analysis has the strongest potential to be used as field method of measurement due to its higher resolution nature and ease of it use by untrained persons. Keywords: Citronella, Citronellal, Geraniol, Physicochemical Properties, Density, Refractive Index
APPLYING INVENTORY MANAGEMENT THEORY TO IMPROVE SUPPLY CHAIN MANAGEMENT (SCM) IN PT. ROSYADA HERBA NATURA raditya ramadhan fajaruddin; abdul haris lahuddin; sentot wahjoe goeritno
Liaison Journal of Engineering Vol. 3 No. 1 (2023): Volume III
Publisher : Liaison Journal of Engineering

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Small business is the backbone of this country, but opening a small business can be tricky. Starting a small business can either be the start of something worthwhile or a simple way to lose money. Thus, the implementation of Supply Chain Management is essential for operation in every small business. Supply Chain Management methods to be explored in this research are Inventory Management and CPFR. In order to keep the business running, many businesses establish warehouses where they stock their products. Therefore, to ensure that warehouses continue to operate successfully, businesses need to apply Inventory Management to the warehouse. Factors like Safety Stock, Inventory Tracking, and Cycle Counting can improve the company's Supply Chain Management significantly. Other than Inventory Management, another theory that could improve Supply Chain Management is Collaborative Planning, Forecasting, and Replenishment, also known as CPFR. This is considered the ideal foundation for starting a business. When applying Supply Chain Management, businesses can reduce inventory costs in the future. This creates transparency between the company and supplier due to consistent Reorder Points and EOQ. The purpose of this research is to study PT. Rosyada Herba Natura’s improvement of their Supply Chain Management in terms of Inventory Management and CPFR. Keywords: Small Business, Supply Chain Management, Inventory Management, CPFR,
Awareness Towards Jamu Classification in JABODETABEK Area nur rahmah; runita rizkiyanti putri
Liaison Journal of Engineering Vol. 3 No. 1 (2023): Volume III
Publisher : Liaison Journal of Engineering

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Indonesia is endowed with natural resources especially medicinal plants. The medicinal plants have been used as the raw material of traditional medicine to treat and prevent various diseases long before modern pharmaceutical was introduced. The most popular Indonesian traditional medicine called as jamu. Jamu have been consumed by the ancestors and passed down from generation to next generation. The local society believed the health benefits after consuming jamu such as to maintain health and wellness and boosting immune system and the consumption of jamu significantly increased during covid-19 pandemic. There are three classification of traditional medicine which are jamu, standardized herbal medicine, and fitofarmaka. This study aimed to discuss the awareness towards jamu classification in Jabodetabek area. This studywas a quantitative research by distributing a questionnaire through social media that was filled by 309 respondents. Result showed that less than 20% of both male and female respondent aware different jamu classifications. The factors that make respondent do not know the jamu classification is the lack of information in the internet sources or news. Therefore, the role of the government, health workers, and herbalist are needed to socialize the information about traditional medicine directly. Keywords: Jamu, Herbal Medicine, Classification

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