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YOHANDIKA TRI APRILIYANTO
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Fakultas Teknik & Rekayasa, Universitas Selamat Sri. Jl. Soekarno - Hatta Km. 03 Jambearum, Kecamatan Patebon, Kabupaten Kendal, Jawa Tengah
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JERA : Journal of Engineering Research and Application
Published by Universitas Selamat Sri
ISSN : 2809459X     EISSN : -     DOI : https://doi.org/10.51792/mh3k4g56
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Engineering Industrial & Manufacturing Engineering Transportation
JERA : Journal of Engineering Research and Application merupakan jurnal akses terbuka yang menerbitkan hasil penelitian di bidang Ilmiah Teknik dan Aplikasi. JERA menerbitkan hasil penelitian pada ruang lingkup teknik yang meliputi : Teknik Sipil, Teknik Industri, Perencanaan Wilayah Kota. JERA diterbitkan oleh Fakultas Teknik dan Rekayasa Universitas Selamat Sri (UNISS) dan terbit 2 kali dalam setahun di bulan Februari dan Agustus. The journal discusses issues relating to substainability in the economic, social, environmental, and institutional dimensions of urban development and planning in Indonesia and throughout the world which include the following : Civil Engineering (Construction and Building Materials, Structural and Earthquake Engineering, Rock Mechanics and Geotechnical Engineering, Environmental Engineering, Water Science and Engineering, Transportation Engineering, Ocean and Marine Engineering, Urban Engineering, Surveying Engineering) Industry Engineering (Management Science and Operational Research, Distribution and Logistic Management, Supply Chain management, Business and Management (Performance Management, Strategic Management, Human Resource Management, Marketing Management), Decision science in business and management, Lean manufacturing, Operations improvement and productivity, Innovation management in operations, Product design and development, Operations in the service industry, Quality Management,Total Productive Maintenance, Human Factors Engineering)
Arjuna Subject : -
Articles 62 Documents
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Pengaruh Penambahan Serat Ijuk Terhadap Kuat Tekan Beton Tenardhy Aryarama Wijaya; Dewi Bussaina Ghassani; Alvino
JERA : Journal of Engineering Research and Application Vol 3 No 2 (2024): JERA : Journal of Engineering Research and Application
Publisher : Fakultas Teknik dan Rekayasa

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Abstract

The rapid development of the population and also the development of technology has encouraged the birth of several new technologies specifically for the field of civil engineering, infrastructure and buildings. One of the various building materials that we often encounter is concrete. Concrete is a material composed of several mixtures consisting of: sand or fine aggregate, gravel or coarse aggregate, cement, water as an ingredient to bind all the ingredients that make up concrete. In this study the authors took the title effect of adding palm fiber to the compressive strength of concrete. The purpose of this research is to determine the compressive strength of normal concrete and concrete after adding palm fiber. The method used is research on making concrete and then adding palm fiber at 2% of the cement weight with a number of test objects of 9. From the test results, the average compressive strength of normal concrete is 17 MPa and for fiber concrete the average compressive strength has increased. to 19 MPa, and the ratio between normal concrete and palm fiber concrete is 1.12.
Metode Pelaksanaan Pekerjaan Jalan (Proyek Pembangunan Jalan Jodipati (STA 0+000 ~ 0+670.25) dan Jalan Garboruji (STA 0+450 ~ 0+850) Umi Rahayu
JERA : Journal of Engineering Research and Application Vol 3 No 2 (2024): JERA : Journal of Engineering Research and Application
Publisher : Fakultas Teknik dan Rekayasa

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Abstract

The increasing number of factories in the Kendal Industrial Area means that the need for facilities and infrastructure such as roads is increasingly needed for vehicle routes for factory workers and interested people, apart from that. Apart from that, the implementation of this development is the final form of road building construction that meets the quality, quantity, cost and timeliness of its implementation technically and administratively in accordance with the contract documents and is well received by the budget user/Budget user's Authorized Person, the Commitment Making Officer/ official implementing technical activities.  In this project, many types of work are carried out, such as: Subgrade, Lower Foundation Layer (LPB), Upper Foundation Layer (LPA), Prime Coat, Tack Coat, Asphal. The focus of the observations made is the structure of road construction and also quality control of a road construction project.
Kajian Studi Trotoar Di Pasar Batang (Pintu Sebalah Barat Pasar) Wahyudiono; Meidi Sapta Anggara; Andry Wisnu Pabowo
JERA : Journal of Engineering Research and Application Vol 3 No 2 (2024): JERA : Journal of Engineering Research and Application
Publisher : Fakultas Teknik dan Rekayasa

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Abstract

Sidewalks are road supporting facilities in Law no. 22 of 2009 concerning road traffic and transportation, hereinafter referred to as the Road Traffic and Transportation Law, the availability of sidewalks must provide safety and comfort to pedestrians passing by. The subject of pedestrians itself is not only intended for normal people. But also to all levels of society, including people with disabilities, such as the blind, wheelchair users and others. The discussion that will be studied in this paper is related to legal protection for people with disabilities who pass on sidewalks in light of the traffic and road transportation laws. The purpose of this writing is to analyze whether the traffic and road transportation laws provide legal protection to people with disabilities who pass on the sidewalk because the sidewalk is one of the supporting facilities mentioned. The type of research used in this research is descriptive. The results obtained from this research are that the traffic and road transportation law has provided legal protection through Article 121 which states that pedestrians have the right to the availability of sidewalks and other facilities on the highway. This explains that pedestrians have full rights to cross the road without interference from anywhere.
MEASUREMENT OF BULLWHIP EFFECT ON DISTRIBUTION NETWORKS CV. MITRAA ANUGRAH MANDIRI Adhisty Kartika Dewi; Ezar Amrullah; Wahyu Saputra; Muhammad Zulfa Dimastiar
JERA : Journal of Engineering Research and Application Vol 3 No 2 (2024): JERA : Journal of Engineering Research and Application
Publisher : Fakultas Teknik dan Rekayasa

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Abstract

Supply Chain management is a crucial aspect for the success and growth of a company. It encompasses various processes such as supplier selection, logistics planning, and supply distribution. CV Mitraa Anugrah Mandiri, as a company operating in the field of goods distribution, has experienced the Bullwhip Effect phenomenon. The Bullwhip Effect is a significant discrepancy between existing inventory and demand. This is caused by misinterpretation of demand data and a lack of integrated information systems across the distribution chain. The purpose of this study is to measure the Bullwhip Effect level and provide necessary improvement suggestions to reduce the Bullwhip Effect at CV Mitraa Anugrah Mandiri. The results of the Bullwhip Effect level measurement for each product are: Superior Mie Bakso 2kg at 1.212, Gula Matahari at 0.893, Susu Bendera Saset Putih 40gr at 1.207, and Tepung Dragon 25kgs at 1.495. With these results, the products Superior Mie Bakso 2kg, Susu Bendera Saset Putih 40gr, and Tepung Dragon 25kgs experience demand variability exceeding inventory variability, while the product Gula Matahari experiences inventory variability exceeding demand variability (overstock). At the echelon level, the Bullwhip Effect phenomenon occurs for distributors of the products Superior Mie Bakso 2kg, Gula Matahari, Susu Bendera Saset Putih 40gr, and Tepung Dragon 25kgs with a Bullwhip Effect level of 1.204. This indicates that demand variability exceeds inventory variability. The researcher suggests improvements using the Vendor Managed Inventory method as a long-term strategy that can be applied at CV Mitraa Anugrah Mandiri and enhance relationships with retailers to facilitate product demand acceptance from retailers.
Analisis Perbaikan Efektivitas Dry Ash dan Wet Ash Unloader dengan Menggunakan Manufacturing Cycle Effectiveness Harlinda Rasvi Nabela; Prasetyo
JERA : Journal of Engineering Research and Application Vol 3 No 2 (2024): JERA : Journal of Engineering Research and Application
Publisher : Fakultas Teknik dan Rekayasa

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Abstract

Indonesia's need for electrical energy is also increasing along with increasing industrial activity. One of the power generating units that plays a vital role in Indonesia is the PLTU. PT. Bhimasena Power Indonesia is a PLTU company located in Batang, Central Java. The main fuel for electrical energy in PLTUs is coal. The transportation is carried out using trucks. However, due to limited parking space and a long unloader system, there are queues for truck transportation. Manufacturing Cycle Effectiveness calculations were carried out to determine the effectiveness value of the unloader system and then elimination of non-value added activities was carried out. It was found that the effectiveness percentage which was previously 51.6% became 55.3% after elimination, it could optimize the effectiveness value of the ash loading system at PT Bhimasena Power Indonesia.. Keywords: PLTU, Manufacturing Cycle effectiveness, Unloader.
Studi Penelitian Pengaruh Penambahan Limbah Serbuk Kuningan Terhadap Kuat Tekan Beton Tenardhy Aryarama Wijaya
JERA : Journal of Engineering Research and Application Vol 2 No 2 (2023): JERA : Journal of Engineering Research and Application
Publisher : Fakultas Teknik dan Rekayasa

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Abstract

Concrete is a structural element consisting of aggregate particles attached by a paste made from Portland cement and water. Brass powder waste is of particular concern, if left unchecked over time it will increase and accumulate, thus polluting the environment. One of its utilization is by making the waste as a concrete mixture material. This study aims to determine the compressive strength of normal concrete and concrete after adding brass powder at a percentage dose of 10% and 25% of the weight of fine aggregate. The method used in this study was an experimental method with a design concrete quality of 22 MPa, with 15 specimens. From the test results, the average compressive strength of normal concrete is 22.330 MPa. The average compressive strength of concrete with the addition of 10% brass powder by weight of fine aggregate was 20.962 MPa, decreased the compressive strength of concrete by 0.938%. The average compressive strength in concrete with the addition of brass powder of 25% by weight of fine aggregate is 23.736 MPa, experiencing an increase in compressive strength in concrete of 1.062% of the compressive strength in normal concrete
IMPLEMENTASI MENGURANGI CACAT PADA PRODUK HOUSING VANE DI AREA SELECTION PT. SUMIDEN SINTERED COMPONENTS INDONESIA MENGGUNAKAN METODE STATISTICAL QUALITY CONTROL (SQC) Yusita Attaqwa; Soleh Nurkholik
JERA : Journal of Engineering Research and Application Vol 3 No 2 (2024): JERA : Journal of Engineering Research and Application
Publisher : Fakultas Teknik dan Rekayasa

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Abstract

One of the main factors that determines a company's performance is producing high quality products. In order to achieve this goal, a good strategy must be implemented, one of which is paying attention to and maintaining the quality of the products produced so that they can meet consumer needs. The research aims to analyze defective products in vane housing products at PT. Sumiden Sintered Components Indonesia. The research I conducted used the Statistical Quality Control (SQC) method. So the problem formulation in this research is to identify and analyze what factors cause housing vane products to experience these defects. So what improvements can be implemented to improve the quality of the housing vane product? The sample collection method uses a check sheet tool to determine the level of success of the research carried out. The analysis model is to compare data on a fishbone diagram before and after implementation. The results obtained in this research are reducing products that should be thrown away into products that can be reprocessed and reducing company losses.
OPTIMASI BIOGAS DENGAN PENAMBAHAN LIMBAH KULIT NANAS BERBANTU GELOMBANG MIKRO Sufrotun Khasanah; Safaah Nurfaizin
JERA : Journal of Engineering Research and Application Vol 3 No 2 (2024): JERA : Journal of Engineering Research and Application
Publisher : Fakultas Teknik dan Rekayasa

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Abstract

Zero net emission has become a global issue that is being discussed intensively along with the development of technology to the point of giving birth to various policies that have been issued by many countries in the world. One way to realize this is by diversifying green energy. Bio energy is the right solution to achieve this global goal, namely the utilization of pineapple skin waste as raw material for biogas production. so it is very appropriate to conduct research to examine the effect of adding pineapple skin waste to increase biogas production with microwave treatment and process optimization. The optimum condition of the temperature variable obtained the best results at a temperature of 900C with a cellulose solubility of 29.42%, while the lignin solubility obtained was 9.05% which can be concluded that MAE pretreatment can increase the solubility of the cellulose and lignin composition. Furthermore, the optimum condition for biogas production was produced in pineapple skin samples with MAE treatment with a ratio of 1:2 (w/v) of 917mL. From the research that has been carried out, it shows that along with the increase in total solids entered into the biodigester, the amount of biogas production produced will increase.
Systematic Literature Review Penilaian Kinerja Warehouse Adhisty Kartika Dewi
JERA : Journal of Engineering Research and Application Vol 4 No 1 (2025): JERA : Journal of Engineering Research and Application
Publisher : Fakultas Teknik dan Rekayasa

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Abstract

The development of industry in Indonesia is now an interesting topic of discussion among practitioners and academics. The Manufacturing Industry is one of them, this industry has several very promising commodities. The dynamic nature of the manufacturing industry makes industry players, in this case manufacturing companies, to be able to survive and increase company productivity. Increasing productivity is closely related to the efforts taken by the company, including performance measurement. Performance measurement is not only in the production section, performance measurement can also be done in the Warehouse. Warehouse performance measurement or commonly called warehouse Performance is the objective of this study. The method used is a literature study in the form of journals and proceedings as many as 25 articles. This study is an effort to map the conditions of previous research on Warehouse peer performance. Based on the analysis that has been done, warehouse performance using the KPI and AHP methods for manufacturing companies has the potential for further research. In addition, according to the analysis that has been done, warehouse performance can produce tactical and strategic decisions that are useful in the development of manufacturing companies in the future. Keywords: warehouse performance, KPI, AHP, Industri Manufaktur
Pengaruh Harga Dan Kualitas Pelayanan Terhadap Keputusan Pembelian Pada Mulia Barokah Fotocopy Adhisty Kartika Dewi
JERA : Journal of Engineering Research and Application Vol 4 No 1 (2025): JERA : Journal of Engineering Research and Application
Publisher : Fakultas Teknik dan Rekayasa

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Abstract

This study aims to analyze the effect of price and service quality on purchasing decisions at Mulia Barokah Fotocopy. In the service business world, price and service quality factors play an important role in attracting and retaining customers. The research method used is a quantitative method with a survey approach. Data were collected through questionnaires distributed to Mulia Barokah Fotocopy customers. The data analysis technique used multiple linear regression analysis to determine the extent to which price and service quality influence purchasing decisions. The results of the study indicate that price has a significant effect on purchasing decisions, where customers tend to choose photocopying services that offer competitive prices. In addition, service quality also has a positive effect on purchasing decisions, where friendliness, speed, and accuracy of service are factors considered by customers. Simultaneously, price and service quality have a significant contribution to purchasing decisions. The conclusion of this study is that in order to improve customer purchasing decisions, Mulia Barokah Fotocopy needs to maintain a competitive pricing strategy and improve service quality in order to provide a better experience for customers. Keywords: Price, Service Quality, Purchasing Decisions, Photocopy, Customers.

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