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Barometer
Published by Universitas Singaperbangsa Karawang
ISSN : 1979889X     EISSN : 25499041     DOI : -
Core Subject : Engineering,
Engineering
BAROMETER diterbitkan oleh Fakultas Teknik Universitas Singaperbangsa Karawang sejak 1998. Kemudian tidak ada penerbitan dan diterbitkan kembali pada Juli 2016 dengan Vol.01 No.01 . BAROMETER dicetak dalam bentuk hardcopy dengan ISSN. 1979-889X dan dalam bentuk softcopy dengan e-ISSN. 2549-9041. BAROMETER menerbitkan artikel ilmiah yang merupakan hasil-hasil penelitian, telaah ilmiah/kajian ilmiah/hasil pemikiran, dan analisis/pemecahan permasalahan di industri yang relevan dengan bidang ilmu teknik, dimana belum pernah dipublikasikan dimanapun. Artikel yang dikirimkan ke BAROMETER harus terbebas dari Plagiarism maupun Autoplagiarsm. BAROMETER bertujuan untuk mendorong penelitian dalam studi keteknikan dan artikel-artikel yang dimuat berhubungan dengan bidang teknik.
Arjuna Subject : -
Articles 109 Documents
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KARAKTERISASI SIFAT PENYERAPAN AIR, SEM DAN EDS DENTAL KOMPOSIT KOMERSIAL Al Ichlas Imran
BAROMETER Vol 7 No 2 (2022): Barometer
Publisher : Fakultas Teknik, Universitas Singaperbangsa Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35261/barometer.v7i2.6550

Abstract

Dental material is a composite composed of a hydrophilic matrix and filler as a reinforcement. Liquid enters the mouth and passes through the dental material by diffusion and damage the material, thereby interfering with the teeth's ability to chew food. The purpose of this study is to study the fluid absorption behavior of three types of dental composites and to determine the surface structure and its composition. The commercial filling composites used were Solare®X-A3, FiltekTMZ350XT Flow-A3 and Grandio®Flow-A3. The immersion medium was artificial saliva pH 7 and Coca-Cola® pH 3.45. Specimens were molded into an acrylic and hardened using light curing for 1 minute. The fluid absorption behavior was carried out by immersing the specimen in artificial saliva and Coca-Cola® media. Specimen weight was recorded periodically every 1-4 days for 38 days. Observation of the surface structure used SEM and chemical composition analysis with EDS for Filtek. The results showed that the fluid absorption behavior of all dental composites from 4 to 38 day increased, where the composites immersed in Coca-Cola® gained greater weight than artificial saliva. For the surface structure of the Filtek, the condition before immersion shows the wide contact surface between the filler and the matrix, and the condition after immersion shows the presence of empty space and swelling of the matrix. The results of the chemical composition analysis, before immersion showed that Filtek was composed of elements C, O, Si, Zr and Yb, where after immersion showed the element Yb had dissolved with Coca-Cola® liquid.
PENGEMBANGAN MODEL PERAN TRIPLE-HELIX TERHADAP PENGEMBANGAN ECOCANVAS CLEANTECH STARTUP BERBASIS GREEN INNOVATION & TECHNOLOGY ADOPTION Kirana Rukmayuninda Ririh; Sambas Sundana; Amalia Kusumawati; Desinta Rahayu Ningtyas
BAROMETER Vol 7 No 2 (2022): Barometer
Publisher : Fakultas Teknik, Universitas Singaperbangsa Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35261/barometer.v7i2.6630

Abstract

Startups play an important role in the disruptive transformation of several industrial sectors towards a circular economy of sustainability.  Cleantech Startup (CS) is one of the major business players in green innovation and technology, which is based on generating or utilizing clean energy.  To achieve sustainable green innovation success, collaboration between actors in green innovation systems such as universities, government institutions and industry (including CS) must be optimal.  Coupled with the CS business model, it is necessary to implement a green business model canvas (EcoCanvas).  This literature study will review how the Triple-Helix (TH) collaboration towards innovation and adoption of green technology is carried out by CS. In addition, the EcoCanvas will be formulated from examples of CS cases in Indonesia.  This study uses a desk review of 51 major articles from reputable journals.  It can be seen that the TH collaboration focuses on: government regulations, market focus, supplier participation, coordination between functions, and technology development.  In addition, licensing alliances and technology development will affect the pattern of financial investment and patent activity. The EcoCanvas model on CS also shows that environmental issues such as waste and abundant resources in Indonesia are the main focus in the sustainable business model adopted by CS.  The findings in this study need to be studied more deeply by using empirical evidence from the field and other supporting historical data.
PENGARUH JUMLAH SUDU TURBIN ANGIN HORISONTAL TERHADAP KINERJA DALAM PEMBANGKIT LISTRIK SKALA MIKRO Ismail Kholid; Mohammad Alexin Putra
BAROMETER Vol 7 No 2 (2022): Barometer
Publisher : Fakultas Teknik, Universitas Singaperbangsa Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35261/barometer.v7i2.6663

Abstract

Wind power plant is a power plant that uses renewable energy, namely wind energy. This study tested micro-scale wind power plants using a horizontal type wind turbine with a diameter of one meter with variations in the number of blades, namely 16 blades, 14 blades, 12 blades and 10 blades at wind speeds of 4.7 m/s, 4.1 m/s. , 3.6 m/s and 3 m/s. The purpose of this study was to determine the effect of the number of horizontal wind turbine blades on the turbine rotation with the load and electrical power generated. This research uses an experimental method and is divided into 3 stages, the first stage is the design of research tools and components, the second stage is making research tools and components, the third stage is testing. Based on the results of testing using a load, a wind turbine with 16 blades produces the highest turbine rotation, which is 47 rpm at a wind speed of 4.7 m/s and produces the highest electrical power, which is 0.12 W at a wind speed of 4.7 m/s.
IMPLEMENTATION OF RFID-BASED AUTOMATED PARKING MANAGEMENT SYSTEM: A FEASIBILITY STUDY Win Lester Dichoso; Marianne Gonzaga; Shaina Erlano; Katreen Guevarra; Shaira Grace Lasam; Nicole Lyka Ronquillo
BAROMETER Vol 7 No 2 (2022): Barometer
Publisher : Fakultas Teknik, Universitas Singaperbangsa Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35261/barometer.v7i2.6764

Abstract

The difficulties of finding a parking spot in any business area are well-known to drivers. Parking tends to put them behind schedule owing to inefficient parking systems, making it much longer due to lost tickets, slow payment procedures, and insufficient parking information. To help lessen the delays caused by these problems, the researchers intend to integrate a technology-based solution in the three important parking procedures — the car entry and exit, the payment mechanism, and the location of parking slots — to significantly reduce the time spent handling these processes, with a particular emphasis on the management system’s ability to improve the parking experience. This study, titled Implementation of RFID-based Automated Parking Management System: A Project Feasibility, seeks to determine the feasibility of an RFID-based parking management system at Victory Mall and Market in Tanauan City, Batangas as its initial client. The project consists of two parts: (1) the system itself as the product and (2) the service that it will provide, featured by its cashless, contactless, and paperless transactions, making the overall service effective and efficient. The researchers conclude that the project is attainable, anticipating an initial service capacity of 929,888.07 parking hours with a 5% annual increase that will result in an average gross profit ratio of 68% per year. It is expected to have a three-year payback period for the total investments of its shareholders amounting to PHP 15,000,000.00. The assumed start of operation where the company caters to its first client is in June 2023.
ANALISIS TRANSMISI DATA CITRA DIGITAL ESP 32 CAM PADA PROTOTIPE ROBOT PEMADAM API MENGGUNAKAN METODE KOMPRESI CITRA MJPG Ridwan Satrio Hadikusuma; Reni Rahmadewi
BAROMETER Vol 8 No 1 (2023): Barometer
Publisher : Fakultas Teknik, Universitas Singaperbangsa Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35261/barometer.v8i1.6401

Abstract

The research in this journal proposes the design and prototype of a fire fighting robot based on esp 32 cam and its implementation is shown by a brief discussion of its construction and operation. The developed fire fighting robot can be operated in various modes using a remote control using Blynk software and GPS technology. To be able to detect fires early, good image quality is needed when the robot is monitoring the surrounding conditions as well as the speed of transmitting digital image data to users so that they are able to detect fires in real time. Monitoring was carried out using an esp 32 cam with MJPG compression, it was found that the transmission had a low average delay of 97 ms with the MJPG image compression quality condition below 10 fps during transmission and the system was able to extinguish small fires with an average maximum distance of 15 .25 cm at a baud rate configuration of 9600 bps when uploading the program into the microcontroller. At the time of mechanical testing, it was found that the robot was able to move according to the conditions on the joystick.
UJI EFEKTIVITAS PENERAPAN MACHINE LEARNING CLASSIFICATION UNTUK SURVEY KEPUASAN PELANGGAN MASKAPAI PENERBANGAN X Dimas Aditiya; Ulinnuha Latifa
BAROMETER Vol 8 No 1 (2023): Barometer
Publisher : Fakultas Teknik, Universitas Singaperbangsa Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35261/barometer.v8i1.6566

Abstract

The use of air transportation is one way that transportation may make it simpler for people to get from one place to another place rapidly. As a result, airlines must enhance the quality of their services by using passengers feedback. Using the data mining method makes it simple to categorize consumer satisfaction from airline surveys. This study focuses on the customer satisfaction classification method created using machine learning with the K-nearest neighbor, decision tree, and random forest models to make it simpler for airlines to categorize. The accuracy, precision, recall, and F1-Score statistics are used to analyze the performance of the classification machine learning model. According to the findings of the performance study, the machine learning decision tree and random forest models have good performance results. The accuracy values for the testing data for the decision tree and random forest models, respectively, are 92,96% and 93,22%. The cross-validation method was also used to examine the two machine learning models to determine which one is more practical to use. The decision tree model and the random forest both have accuracy levels of 96% and 94,5%, respectively, according to the findings of the cross-validation test. Decision trees and random forests can be used to help airline X determine customer satisfaction levels if the cross-validation value is increased.
OPTIMALISASI PERENCANAAN KAPASITAS PRODUKSI DENGAN METODE THEORY OF CONSTRAINTS DAN ROUGH CUT CAPACITY PLANNING Oktaviana Claudia Situmorang; Ririn Regiana Dwi Satya; Aditya Herliawan
BAROMETER Vol 8 No 1 (2023): Barometer
Publisher : Fakultas Teknik, Universitas Singaperbangsa Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35261/barometer.v8i1.6826

Abstract

PT. MTI has a problem that often occurs in planning its production capacity, where there are often delays in the delivery of ordered products. One of the causes is also the inhibition of the production process at one of the workstations, resulting in the flow of the production process. Theory Of Constraints (TOC) is an improvement method that helps in making decisions in managing resources. The TOC method is also very useful for optimizing production capacity by analyzing and minimizing time constraints that support production. In addition, the Rough Cut Capacity Planning (RCCP) method is a method for calculating capacity requirements and comparing them with the available capacity. The data used in this study are product demand data, product processing time, product structure, and working hours. From the results of data processing with the TOC approach, it was found that the workstation experiencing obstacles was the welding workstation and the amount of buffering at the workstation was 5.22 hours before the workstation and 4.97 hours after the obstacle station. And the results of data processing with RCCP and LINDO software get the optimal production capacity produced by PT. MTI is 181 units per month with the distribution of 101 units for Pallet 1A, and 80 units for Pallet 3A, and based on the largest MPS comparison, it is stated that the company's capacity is not sufficient to meet the largest demand for MPS in November. So the company needs to increase the working hours overtime or by adding several units of machines to the workstation constrained by the welding station.
A PROJECT FEASIBILITY OF CONVERTING LOW-DENSITY POLYETHYLENE AND COAL FLY ASH INTO FUEL Christine Joy Catindig; Dustin Licos; Jose Marlou Ocaña; Janina Caroline Sayseng; Geleen Tabaldo; Ericka Jade Terrenal
BAROMETER Vol 8 No 1 (2023): Barometer
Publisher : Fakultas Teknik, Universitas Singaperbangsa Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35261/barometer.v8i1.6917

Abstract

Ineptly handled plastic waste has both economic and environmental repercussions. The country's reliance on single-use plastics such as multilayer sachets and pouches has led to the country becoming a "sachet economy," worsening the region's concerning levels of land and marine plastic pollution. By most estimates, the Philippines use a massive 163 million sachets every day. Unfortunately, only the sachets have been counted, not the whole projected number of used plastics throughout the country. Thus, the researchers have proposed an idea to test the feasibility of converting low-density polyethylene and coal fly ash as catalyst into fuel. Coal fly ash is a byproduct that can be found most especially in coal-fired power plants. The plastics will undergo the process of pyrolysis wherein depolymerization takes place in order to produce fuel. For the Statistical Computation of the Sample Size to be Surveyed, the researchers used the Slovin’s formula wherein the obtained data and decided to use a 95% confidence level and 5% margin of error and therefore got 399 respondents. Forecasted demand was obtained using the Statistical Straight-Line Method with an average annual increase of 5.58%. The same method was used to forecast the supply which has an average annual increase of 4.49% for the next five years. The initial projected net sale is P515, 650,864.11. The highest possible quality of the desired product is attainable with 82.55% plant capacity utilization that operates in 287 possible manufacturing days with one production shift. The product underwent four different tests, all of which has a positive outcome for the product as an alternative for LPG. The total project cost is P400, 000,000.00 and has a 3.25 years payback period. Therefore, this project is feasible.
DAMPAK PEMAHAMAN JOB DESCRIPTION DAN KECOCOKAN JOB SPECIFICATION TERHADAP KEPUASAN KERJA KARYAWAN PT. BAS Mohammad Ilhamsyah Akbar; Naufal Fajri; Kirana Rukmayuninda Ririh
BAROMETER Vol 8 No 1 (2023): Barometer
Publisher : Fakultas Teknik, Universitas Singaperbangsa Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

PT. BAS is one of the companies who provides services in Indonesia. According to an interview with Human Capital Management, the company still receives complaints from their employees regarding their job satisfaction. After conducting an assessment, it was found that the problem lies in the lack of job description understanding and the suitability of job specifications from the employees in the company. Seeing this condition, a hypothesis emerges which assumes that both of these things have a relationship with PT. BAS’s employee job satisfaction. Through this research, it is hoped that the relationship can be found so PT. BAS can get some consideration material on their human resource management. To achieve this goal, multiple linear regression analysis methods were used to determine the relationship partially and simultaneously and descriptive statistical methods were used to determine the condition of the three research variables and to add information for the company's consideration. From the results of descriptive statistics, it was found that the three research variables at PT. BAS is not reaching the company's target, namely Good and Very Good. Then from the processing of multiple linear regression analysis, it was found that there is a relationship between job description understanding and job specification suitability simultaneously with job satisfaction, but only job specification suitability that has a partial effect on job satisfaction. As for the ability of the two independent variables in explaining job satisfaction of PT. Simultaneous BAS is 69.3%.
ANALISIS CFD PENYEMPURNAAN PENGGUNAAN PENGARAH ANGIN TERHADAP PENGURANGAN GAYA DRAG PADA MOBIL BARANG BAK TERTUTUP Shova Alfian
BAROMETER Vol 8 No 1 (2023): Barometer
Publisher : Fakultas Teknik, Universitas Singaperbangsa Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35261/barometer.v8i1.7291

Abstract

Aerodynamics is one of the factors that can increase the efficiency of fuel consumption. The smaller the drag coefficient, the more efficient the vehicle. The current condition is that there are still many uses/installations of wind guides without taking into account the functions and benefits and there is still no regulation that regulates in detail the use of wind guides. So it is necessary to do this research with the aim of knowing the benefits of using the right wind guide in order to reduce the value of the drag coefficient and it is hoped that this research can be applied in the use of a wind guide. This research was conducted using three types of models at the lowest speed of 20 km/hour and the highest speed of 80 km/hour. The simulation results on trucks with 40 cm lower wind guides, trucks with upper wind guides and trucks with full wind guides using ansys workbench software, show that full wind driven trucks have the smallest Cd value. There was a decrease in the value of the cd from the 40 cm lower wind-directed truck model to the full wind-directed truck model. However, to show more accurate results, it is necessary to conduct a road test and flow of fluid from four sides.

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