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ARRUS Journal of Engineering and Technology
Published by Yayasan Ahmar Cendekia Indonesia
ISSN : 27767914     EISSN : 28073045     DOI : https://doi.org/10.35877/jetech.v1i1
Core Subject : Science, Engineering,
Computer Science & IT Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Library & Information Science
ARRUS Journal of Engineering and Technology preserves prompt publication of manuscripts that meet the broad-spectrum criteria of scientific excellence. Areas of interest include, but are not limited to: Aerospace Engineering Architecture Evaluations Automation and Mechatronics Engineering Bioengineering Chemical Technology Civil and Architecture Engineering Computer Science Construction Control Systems Engineering Data Engineering Electrical, Electronics and Computer Engineering Engineering Mathematics Engineering Science Environmental Engineering and technology Fluid Engineering Genetic Algorithms Information Engineering and Technology Information Theory Marine and Agriculture engineering Material and Chemical Engineering Materials & Technology Engineering Mechanical, Industrial and Manufacturing Engineering Nuclear Engineering Optical Engineering Petroleum and Mining Engineering Petroleum Engineering Physics Robotics & Automation Engineering Software Engineering Statistical Techniques Thermodynamics
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 89 Documents
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Correlation of Work Stress and Performance of Construction Project Manager Darmawan, Didit; Djaelani, Mohammad
ARRUS Journal of Engineering and Technology Vol. 1 No. 2 (2021)
Publisher : Lembaga Penelitian dan Pengembangan Teknologi dan Rekayasa, Yayasan Ahmar Cendekia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/jetech642

Abstract

A Currently the development of construction work is increasingly complex and sophisticated. The nature of the production process in the construction industry makes construction work dangerous and full of risks with high complexity that can lead to stress. Project managers are demanded in terms of mastery of new technologies, tighter time limits or, changing demands on work results, and changes in work regulations can create stressful situations. However, they are required to remain productive and optimal as a form of professionalism. This study will exаmine the relаtionship between job stress аnd project manager performance. The purpose of this study is to determine the direction and significance of the relаtionship between the two variаbles. The population in this study were construction project managers in the Surabaya area with a sample of 23 respondents using purposive sampling. The test was carried out using SPSS 26 software. The data analysis techniques used in this study included validity, reliability, and correlation analysis. The results of the study show that stress and project manager performance have a strong negative relationship. Efforts to improve the performаnce of project managers is to pаy attention to the work stress they experience.
Futsal Field Selection Application Using Mobile-GIS and GPS with Dijkstra's Algorithm Method (Lhokseumawe City Case Study) Triandi, Rahmat; Asrianda; Rosnita, Lidya
ARRUS Journal of Engineering and Technology Vol. 2 No. 1 (2022)
Publisher : Lembaga Penelitian dan Pengembangan Teknologi dan Rekayasa, Yayasan Ahmar Cendekia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/jetech672

Abstract

Futsal field rental is a business engaged in the field of community service in the field of futsal sports. Currently in lhokseumawe city there are 10 futsal fields located in various places, ranging from around campus, office areas, to densely populated settlements. This resulted in many of the people who do not know the location of the futsal field and also the nearest route that can be passed. So it takes an application that can provide information on the futsal field in lhokseumawe city along with the nearest route that can be passed. Determining the nearest route passed to the location of the futsal field can only be done on nodes that have been defined by the system. Dijkstra's algorithm was chosen because it operates thoroughly against existing nodes, and generates the shortest trajectory of all nodes so that it will produce the nearest route optimally. To test the accuracy of the nearest route the results of dijkstra algorithm implementation are used another software that is quantum GIS. This is done to see if the resulting path is correct. From the test results obtained the path obtained is the same as quantum GIS calculations with a similarity value of 100%. Black box testing is used to test the functionality of the menus in the system, and the test results in terms of the functionality of the menus on the system run as desired and run well. The system is good to use.
Effect of Moisture Content and Variety on the Some Physical and Aerodynamic Properties of Sesame Seeds Relevant to Its Processing. Eze, Paul Chukwuka; Eze, Chikaodili Nkechi; Ide, Patrick Ejike
ARRUS Journal of Engineering and Technology Vol. 2 No. 2 (2022)
Publisher : Lembaga Penelitian dan Pengembangan Teknologi dan Rekayasa, Yayasan Ahmar Cendekia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/jetech678

Abstract

The physical and aerodynamic properties of black and white sesame were determined at Moisture Content(MC%) range of 8.5 – 30.6%(d.b).The major, minor, intermediate, arithmetic mean, geometric mean diameters and sphericity, projected area of the two varieties were 2.96 – 3.94mm, 1.47 -2.40mm,0.54 -1.26mm,1.66 – 2.50mm, 0.78 - 3.66mm and 26.53 – 93.45, 1.91 – 42.08mm2 respectively.The increase in MC resulted decrease in true density from 1038.61 – 994.93 kg/mm2 and 1039.61 – 998.47 kg/mm2 for white and black sesame seed respectively.The terminal velocity of white sesame seed ranged from 3.12 – 7.82m/s while black sesame seed ranged from 3.16 – 7.94m/s at MC range of 8.5 – 306% (d.b).The drag coefficient were 3.750.31 and 2.26 – 0.23 for white and black sesame seed respectively as MC ranged from 8.5 – 30.6% (d.b) while Reynold number varied from 2363.9 – 23067.3 and 3401.5 – 15121.6 for white and black sesame seed respectively at MC range of 8.5 - 30.6% (d.b).The properties of sesame seed determined varied significantly with variety and MC.This findings are the prerequisite in the design and selection of sesame seed separating machine. A pneumatic separator can be designed with provision for effective separation of undesired light material with average terminal velocity below 5.17m/s and 5.67m/s for white and black sesame seeds respectively.
Motivation Behind E-Trust of Electronic banking Channels by Banks Enamhe, Dornklaimz; Enukoha, Chidiebere U.; Angioha, Pius U.; Kusi, Manderson
ARRUS Journal of Engineering and Technology Vol. 1 No. 2 (2021)
Publisher : Lembaga Penelitian dan Pengembangan Teknologi dan Rekayasa, Yayasan Ahmar Cendekia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/jetech679

Abstract

This quantitative study attempts to validate the adoption of electronic banking channels by commercial banks for operational performance. The study was a survey that adopted a structured self-designed questionnaire to elicit data from management staff selected from commercial banks in Cross River states using proportional and simple random sampling techniques. Descriptive statistics and Pearson Product Moment correlation was used to analyse the collected data. Electronic banking channels were measured by automated teller machines and internet banking to analyse the data, and this was measured continuously. Analyse results validates the adoption of electronic banking channels (Automated teller machines and Internet banking). The study suggests factors that improve digital banking for bank profitability and operational performance based on these findings
Efforts to Reduce the Temperature of the Coolant in the Radiator with PCM Suhartoyo
ARRUS Journal of Engineering and Technology Vol. 2 No. 1 (2022)
Publisher : Lembaga Penelitian dan Pengembangan Teknologi dan Rekayasa, Yayasan Ahmar Cendekia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/jetech706

Abstract

This study aims to determine the effect of using PCM in reducing the temperature of the water entering the radiator from the engine. Two types of PCM used are made of aluminum and ST 37 steel. They are made like a box measuring 8 cm x 8 cm with a thickness of 2 mm, the center hole is 3.5 cm in diameter, totaling eight pieces. The Machine used is L 300 Colt engine. The results of the study explained that the decrease in engine temperature after using PCM reached 17.50C. While the use of PCM is very effective where the water coming out of the machine can be reduced by 17,830C. Engine speed at stationary conditions (800 rpm – 1100 rpm) aluminum PCM is more effective, but at engine speed starting (1250 rpm – 2000 rpm), the effective PCM is ST 37 steel.
The Effect of Downstream Flow Resistance for Kerosene and Water Separation on Efficiency T-Junction Karminto; Suhartoyo
ARRUS Journal of Engineering and Technology Vol. 2 No. 1 (2022)
Publisher : Lembaga Penelitian dan Pengembangan Teknologi dan Rekayasa, Yayasan Ahmar Cendekia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/jetech710

Abstract

This study aims to determine the separation of kerosene and water in a piping installation. It is very important to do research because it can reduce problems that arise in the distribution of drilling oil to further processing and distribution. T-Junction is a method used in this study, because the separator method is rarely used. The separation of kerosene and water types in the test using the T-Junction method, variations in downstream flow resistance of 42%, 57% and 72% resulted in a large kerosene separation efficiency of 100% at a mixed superficial velocity of 0.35 m/s, Jw= 0.25 m/s Jk = 0.10 m/s and at mixed superficial velocity 0.47 m/s, Jw = 0.22 m/s Jk=0.25 m/s, while 99% efficiency occurs at mixed superficial velocity 0 ,20 m/s , Jw= 0.10 m/s and Jk = 0.10 m/s. Water cut also greatly influences the phase separation. The lower the water cut, the higher the peak separation efficiency achieved
Novel Probiotic Isolation of Coconut Water's Helpful Lactic Acid Bacteria Cure Covid-19 Patients Suryani, Suryani; Purnawati , Yuliesi; Gemaeka Putri, Sindy; Rahmawati, Rahmawati; Akbar , Yustitia; Yusra , Yusra
ARRUS Journal of Engineering and Technology Vol. 2 No. 1 (2022)
Publisher : Lembaga Penelitian dan Pengembangan Teknologi dan Rekayasa, Yayasan Ahmar Cendekia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/jetech724

Abstract

Probiotics from coconut water lactic acid bacteria have not isolated nor identified them, and no one has studied that these probiotics can help cure Covid-19 patients. This study aimed to isolate and identify probiotic lactic acid bacteria in coconut water, both morphologically, physiologically, and biochemically. Further studied his ability to help cure Covid-19 patients. Using coconut water samples, probiotics are isolated by isolating lactic acid bacteria through dilution methods and pour plate methods. The medium used is MRSA+ CaCO3 0.3%. Physiological and morphological identification. The following identification is to perform biochemical tests such as the Gram test. The results showed that there were 73 bacterial isolates and 24 fungal isolates, consisting of 4 species of bacteria, Pediococcus sp, Lactobacillus paracasei, and Lactobacillus plantarum, as well as candida sp and rhizopus fungi. In comparison, the results of the antimicrobial analysis showed that Lactobacillus plantarum has better antimicrobial ability against the pathogen bacteria Pseudomonas aureginosa. Lactobacillus plantarum's antimicrobial ability is less good against S. aureus bacteria. These findings suggest that probiotics from coconut water can be isolated and may aid the healing of Covid-19 patients. This study has implications that in the future Covid-19 patients can be helped with coconut water.
Experimental Study of Asphalt Tile Waste as a Substitute for Coarse Aggregate and Fly Ash as a Partial Substitution of Cement in Concrete Mixtures on Compressive Strength Sumarno, Agung; Firmansyah, Lugawi Lodra
ARRUS Journal of Engineering and Technology Vol. 2 No. 2 (2022)
Publisher : Lembaga Penelitian dan Pengembangan Teknologi dan Rekayasa, Yayasan Ahmar Cendekia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/jetech743

Abstract

The increasing growth of residential construction, as well as construction waste is also increasing, including tile roof waste. So this study will process the tile fragments or waste to mix concrete as a substitute for coarse aggregate and fly ash as a partial substitution of cement for compressive strength. The purpose of this study was to determine the effect on slump, water absorption, density, and compressive strength of concrete. The method used in this research is experimental by conducting a trial mix which is carried out at the Concrete Laboratory of DSP - PT. Duta Sarana Prakarsa. From the research results of asphalt tile waste and fly ash substitution, there is a slump level of 6 cm - 8 cm, normal concrete has a slump value of 7 cm. The highest slump value is found on 20% asphalt tile, which is 8 cm from normal concrete. The biggest slump decrease occurred in 10% asphalt tile and 10% fly ash from normal concrete. At the age of 28 days, it can be seen that normal concrete has a water absorption value of 3.78%. Meanwhile, the water absorption with the highest value is found in 20% asphalt tile, which is 4.93%. The lowest water absorption value occurs in 10% asphalt tile, which is 3.40%. At the percentage of the mixture of 20% asphalt tile waste and 10% fly ash, the density decreased the most by 7.93% from normal concrete. The compressive strength value of normal concrete at the age of 28 days was 389.91 Kg/Cm2. The greatest decrease in compressive strength occurred in a mixture of 20% asphalt tile waste and 10% fly ash, which was 156.51 Kg/Cm2.
The Effectiveness of Users of the People's Crossing Bridge (JPO) at the Youth Center of the City of North Jakarta Administration during the COVID-19 Pandemic Isradi, Muhammad; Andri, Maulika Alifia; Rifai, Irfan; Mufhidin, Amar
ARRUS Journal of Engineering and Technology Vol. 2 No. 2 (2022)
Publisher : Lembaga Penelitian dan Pengembangan Teknologi dan Rekayasa, Yayasan Ahmar Cendekia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/jetech749

Abstract

The current dense population of DKI Jakarta must be balanced with the provision of adequate transportation facilities and infrastructure. The current presence of pedestrians is usually concentrated in public facilities such as terminals, shopping centers, educational centers, and other public facilities. The existence of these pedestrians requires facilities for pedestrians, including road crossing facilities such as the People's Crossing Bridge (JPO), where the JPO is installed if it is required that there is no intersection between the flow of pedestrians and the flow of traffic. So that pedestrians want to use the JPO, it must be guaranteed safety and walking distance so that it does not get too far away. For this reason, this study was carried out to determine the effectiveness of the People's Crossing Bridge in the Youth Bracelet of the North Jakarta Administration. To determine the effectiveness of the pedestrian bridge at the Youth Center of North Jakarta City, the researchers observed the number of pedestrians for 2 days, namely during peak hours such as in the morning at 06.00 - 08.00 and in the afternoon at 16.00 - 18.00. From the results of the research for 2 days in the field, it was found that almost 58% of people did not use JPO facilities, and only 42% of people used JPO facilities. Thus, it can be concluded that JPO at the Youth Center of North Jakarta City Administration is classified as a fairly effective JPO.
Analysis of Types of Occupational Health and Safety Risk (K3) in Erection Work Sobirin, Mohamad; Putra, Almie Noegraha; Fertilla, Novika Candra; Susanti, Irriene Indah
ARRUS Journal of Engineering and Technology Vol. 2 No. 2 (2022)
Publisher : Lembaga Penelitian dan Pengembangan Teknologi dan Rekayasa, Yayasan Ahmar Cendekia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/jetech750

Abstract

Infrastructure Development Certification of Human Resources Deputy Building 3 is planned as one of the supporting facilities to improve the quality of human resources, especially in the environment Badan Siber dan Sandi Negara, Indonesia. The purpose of this study is to find out the results of the analysis of the types of risk of K3 in the erection work in Project Pembangunan Infrastruktur Sertifikasi SDM Badan Siber dan Sandi Negara and know the types of K3 risks that play the most role that occur in erection work in Project Pembangunan Infrastruktur Sertifikasi SDM Badan Siber dan Sandi Negara. Using the research method of the survey method that will be validated by K3 Experts. The survey results from the respondent questionnaire were processed using the SPSS (Statistical Package for Social Science). To analyze risk, use the result of multiplying the average opportunity value and the average impact value.

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