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16 results on '"Sulistio, Joko"'

1. Comparative study on determining warehouse locations using set-covering and P-median.

Author

Ramadhan, Muhamad Hafidz, Setiawan, Danang, and Sulistio, Joko

Subjects
WAREHOUSES, DISTRIBUTION costs, COMPARATIVE studies, MUNICIPAL services, GOVERNMENT business enterprises, COMMUNITY services
Abstract

The location problem is defined as a problem on determining where the facility should be located. Determining the facility location considers several factors: distance, customers, and costs. A State-Owned Enterprise (BUMN) that provides public service obligations to procure and distribute rice to beneficiaries (Raskin) is studied as a case study. The case study has 1500 warehouses to support community service activities. In this study, the Set Covering Problem (SCP) and P-Median methods were used to find the optimal number of warehouses to support the distribution of Raskin in Central Java and Yogyakarta (DIY) Province. Regarding the number of selected warehouses, the SCP model gives better results than the P-median. The total number of chosen warehouses is 13 from the SCP compared to 16 warehouses from the P-median. However, in terms of total mileage, the P-median gives a better result than the SCP method in each Divre and Sub-divre, with the total distance by the P-median being 941 Km compared to 1301 Km mileage for the SCP model. The P-median method also gives better results in terms of total distribution costs. [ABSTRACT FROM AUTHOR]

Published
2024
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3. A Conceptual Model of Indonesia's Renewable Energy Development

Author

Sulistio Joko, Wirjodirdjo Budisantoso, and Dana Karningsih Putu

Subjects
Environmental sciences, GE1-350
Abstract

Electricity is a vital sector in global renewable energy, and countries have committed to continuously developing their policies and practices. Each country must proceed with the most effort according to its situation, economically, socially, and politically. Likewise, Indonesia is mandated by the constitution to manage its vital resources according to the five principles of economic democracy. It is a terminology that has been developing since the 20s. It outlines democratic governance within companies running in a market environment. Based on those principles, this article aims to investigate the factors that strongly influence renewable energy development in Indonesia's electricity sector. The complex systems approach is incorporated to satisfy the objective. A Systematic Literature Review was conducted to elicit perspectives on economic democracy. Lastly, a causal loop diagram was developed to describe the complex feedback loops of the different sectors in renewable energy policy and practice.

Published
2023
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5. A nexus between green intellectual capital, supply chain integration, digital supply chain, supply chain agility, and business performance

Author

Muafi, Muafi, Sulistio, Joko, Muafi, Muafi, and Sulistio, Joko

Abstract

Purpose: This study aims to examine and analyze the nexus between Green Intellectual Capital (GIC), Supply Chain Integration (SCI), Digital Supply Chain (DSC), Supply Chain Agility (SCA) dan Business Performance (BP). It also aims to examine and analyze the mediating influence of several variables: (a) the mediating role of SCI on the relationship between GIC and BP, (b) the mediating role of DSC on the relationship between GIC and BP dan (c) the mediating role of SCA on the relationship between GIC and BP. Design/methodology: Quantitative approach is carried out using a survey to the owners or managers, and owners and managers of courier service SMEs in two provinces, namely East Java and Daerah Istimewa Yogyakarta (DIY). These two provinces are known to have a courier service SMEs in a large amount because of its population density and large business transaction. The number of respondents analyzed are 183 SMEs. This study uses purposive sampling with certain criteria. The approach of the model is using Structural Equation Modelling with AMOS 23. Findings: (1) GIC has a significant positive influence on SCI; (2) GIC does not have a significant positive influence on BP; (3) GIC has a significant positive influence on DSC; (3) GIC has a significant positive influence on SCA; (4) SCI has a significant positive influence on BP; (5) DSC has a significant positive influence on BP; (6) SCA does not have a significant positive influence on BP. The results of mediation analysis conclude that: (a) SCI mediates the influence between GIC on BP; (b) DSC mediates the influence between GIC on BP; and (c) SCA mediates the influence between GIC on BP. Research limitations/implications: Selecting respondents using purposive sampling is feared to not be able to generalize the population in the two provinces, namely East Java and DIY. The study also uses a self-administered survey, especially on assessing business performance, thus it is feared that there might be a bias, although it, Peer Reviewed

Published
2022

7. Evaluation on performance and SME’s productivity with discrete system simulation approach

Author

Sabit M. Iqbal, Purba Reno Dias Anggara, and Sulistio Joko

Subjects
Engineering (General). Civil engineering (General), TA1-2040
Abstract

Inventory becomes one of important aspects to identify whether a company has fulfilled the consumers’ demands or not. Shortage of stock, finished goods particularly could emerge the failure of accomplishing the target of consumers’ demand that could also lead to loss of sales. Therefore, it needs good inventory control. This paper is objected improve SME’s productivity by using the approach of discrete system simulation of aluminum industry that rapidly developed in Yogyakarta. Simulation is one of the appropriate tools for experiments that purposed to identify best response from system components. Based from Observation from line production, there are semi-finished products were not finished. Other than that the firm has no clue to solve the problem. Design of experiment and scenario are developed in a model that was built to obtain solution in enhancing the performance and productivity. As the result of initial performance that is not optimal, rescheduling on transporter schedule and the replenishment of machines and operators on the lathing process could be performed as improvements to enhance the productivity. This experiment can be used as the solution in improving the product’s output as 64.36%.

Published
2018
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8. Evaluation of SME (Small Medium Enterprise) production system with discrete system simulation method

Author

Anggara Purba Reno Dias, Sabit M Iqbal, and Sulistio Joko

Subjects
Engineering (General). Civil engineering (General), TA1-2040
Abstract

Like manufacturing companies that have flowshop production lines, SME facing the amount of flow time and makespan. Unfulfilled production targets, buildup on some machines that result in other machines being idle, increasing waiting times across multiple machines, and poor performance of workers are a series of problems facing SME. This article uses a discrete system simulation method to analyze and evaluate SME production lines to improve performance. Simulation is an appropriate tool used when experiments are needed in order to find the best response from system components. From the results of modeling and simulation done found the root of the problem is due to accumulation that occurs in one machine and the lack of utility of the operator in producing bags. So do the experimental design with 3 scenarios on the system that have been modeled and obtained some solutions that can be offered to solve the problem. Furthermore, after the alternative selection is obtained the best scenario based on the alternative selection test is the scenario3 by adding 2 new machines and 1 new operator on the production line obtained a significant output increase compared to other scenarios of approximately 30%. While the best scenario based on the minimum cost is the scenario2 by adding 2 new operators obtained output that is not much different than the scenario3. However, it has not been able to solve a series of problems facing SME. Therefore, the results of this study to solve a series of problems faced by SME is to add facilities in the production line of 2 new machines and 1 operator (scenario3).

Published
2018
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12. MODEL OPTIMASI PENJADWALAN PRODUKSI FLOWSHOP DENGAN WAKTU PROSES DINAMIS

Author

Sulistio, Joko

Abstract

In a mass production system, work stationsare designed base on the production process flow. This layout is called flowshop. The advantage of flowshoplays on it simple material flow. Therefore, the material transportation time can be minimized and the total production time is shortened respectively. Generally, flowshop scheduling applies Johnson algorithm, Campbell, Dudek and Smith (CDS). Nevertheless, those algorithms are just an approach. Therefore it can’t provide an optimal solution. This article explain the flexible flowshop scheduling with Mixed Integer Programming (MIP). Every parts type scheduled will not enter the same work station and some work station are served manually by an operator that leads to a dynamics process time. Simulation is applied to estimate the process time in those work station. A case study is utilize for this purpose. The makespan of the proposed model exhibits a 14 minutes shorter that the initial time.

Published
2016

13. The Optimization of Soft Body Armor Materials Made from Carbon-Aramid Fiber Using the Taguchi Method.

Author

Purnomo, Hari, Widananto, Hardik, and Sulistio, Joko

Subjects
BODY armor, PROTECTIVE clothing, MILITARY personnel, CARBON fibers, QUASISTATIC processes
Abstract

Body armor is a personal protective device used by military personnel. Various soft body armor materials have been tested. One of them is the combination of aramid and carbon. Aramid fibers have been listed as soft body armor material according to IMAS and European standards. The mechanical strength of aramid fibers is 5-10% greater than other synthetic fibers. Meanwhile, carbon fibers are strong, rigid, lightweight, and resistant to fatigue failure. The present research created soft body armor with materials made from carbon-aramid fibers based on the Taguchi method. The objective of this study was to obtain the optimal combination of soft body armor material based on the test results. The combination of factors consisted of seven factors in which each factor consisted of two levels. The results indicated that the optimal carbon-aramid fiber combination for soft body armor materials is generated by combinations of factor A level 1, factor B level 2, factor C level 1, factor D level 2, factor E level 2, factor F level 2, and factor G level 1. The average value of quasi-static impact strength on the optimum condition of the confirmation experimental result was 8025.762 N. [ABSTRACT FROM AUTHOR]

Published
2018
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16. Pengembangan CD interaktif keramik teknik untuk SMK kelas X Program Keahlian Kria Keramik SMK Negeri 5 Malang / Joko Sulistio

Author

Sulistio, Joko and Sulistio, Joko

Abstract

Kata Kunci CD interaktif pengembangan keramik teknik putar SMK Program Keahlian Kria Keramik SMK Negeri 5 Malang dalam proses pembelajaran masih kurang menggunakan media pembelajaran yang variatif dan cenderung konvensional/verbal. Padahal dalam proses belajar mengajar penggunaan media pembelajaran merupakan hal yang sangat penting dan mempengaruhi keberhasilan belajar siswa. Di masa perkembangan teknologi saat ini media pembelajaran dalam suatu sistem pembelajaran perlu bervariasi supaya dalam proses pembelajaran tidak terjadi kejenuhan. CD Interaktif adalah multimedia hasil kemajuan dari perkembangan teknologi elektronika penggabungan elemen grafik audio video teks dan animasi yang dapat dijadikan sebagai media pembelajaran yang baik dan mempunyai manfaat yang besar dalam peningkatan pembelajaran. Tujuan dari pengembangan ini adalah untuk menghasilkan media pembelajaran CD Interaktif Keramik Teknik Putar untuk SMK Kelas X Program Keahlian Kria Keramik. Adapun kegiatan pengembangan meliputi tujuh tahap yang merupakan model gabungan yang diadaptasi dari model penelitian dan pengembangan Borg Gall (1991) dan prosedur pengembangan multimedia Tay Vaughan (2004) yaitu 1) penelitian pendahuluan 2) perencanaan 3) pengembangan draf produk awal 4) uji coba lapangan awal 5) revisi produk utama 6) uji coba lapangan utama 7) revisi produk operasional. Subyek uji coba dalam penelitian pengembangan ini adalah siswa kelas X Program Keahlian Kria Keramik Sekolah Menengah Kejuruan Negeri 5 Malang. Instrumen pengumpulan data menggunakan angket untuk ahli dan angket untuk siswa. Sedangkan metode analisis data menggunakan metode deskripsi dengan persentase. Berdasakan hasil uji coba ahli media didapat kriteria keberhasilan cukup baik dengan persentase 63% dan hasil uji ahli oleh ahli materi didapat kriteria keberhasilan baik dengan persentase 95%. Hasil uji coba lapangan awal kepada 6 siswa menunjukkan kriteria keberhasilan baik dengan persentase 80% sedangkan hasil uji coba lapangan

Published
2010

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