cover
Contact Name
Nanang Fakhrur Rozi
Contact Email
nanang@itats.ac.id
Phone
-
Journal Mail Official
wiwikwidyo@yahoo.co.id
Editorial Address
-
Location
Kota surabaya,
Jawa timur
INDONESIA
Jurnal IPTEK
ISSN : 14117010     EISSN : 2477507X     DOI : -
Jurnal IPTEK - Media Komunikasi Teknologi Diterbitkan secara berkala setahun 2 (dua) kali pada bulan Mei dan Desember oleh Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM), Institut Teknologi Adhi Tama Surabaya (ITATS). Jurnal ini memuat hal-hal yang berkaitan dengan bidang Teknik Sipil, Teknik Mesin, Teknik Elektro, Teknik Arsitektur, Teknik Perkapalan, Teknik Informatika, Teknik Industri, Teknik Kimia, Teknik Lingkungan, Teknik Pertambangan, Teknik Geologi, Desain Produk, Sistem Informasi, dan Sistem Komputer baik yang ditulis dalam bahasa Indonesia maupun bahasa Inggris (diutamakan).
Arjuna Subject : -
Articles 16 Documents
Search results for , issue "Vol 24, No 2 (2020)" : 16 Documents clear
(Cover, Editorial Board, Table of Contents) Jurnal Iptek, Editor
Jurnal IPTEK Vol 24, No 2 (2020)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

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

Abstract

Non Residential Solid Waste Reduction in Krembangan District, North Surabaya Pramestyawati, Talent Nia; Warmadewanthi, I. D. A. A.
Jurnal IPTEK Vol 24, No 2 (2020)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2020.v24i2.967

Abstract

Reduction of non-residential solid waste is important because it can reduce the generation of solid waste in Benowo Landfill. Krembangan District is one of the districts in North Surabaya that was chosen as a research area however, there is no data about the existing and reduction potential of non-residential solid waste in Krembangan District. The purposes of this research are the identification of existing and reduction potential of non-residential solid waste in Krembangan District. There are 21 samples for this research. Public facility samples contain education facilities, offices, worship places, commercial places, medical centres and street sweeping. Total generation of solid waste from public facilities is 10.179,74 kg/day. Existing reduction of solid waste in source and transfer station are 158,1 kg/day and 472,53 kg/day. The reduction potential of non-residential solid waste is based on the optimal recovery factor. Reduction potential with composting and recycling activities are 3.668,31 kg/day and 694,67 kg/day.
Optimization of IS/IT Investment using the Cost-Benefit Analysis (CBA) Method in Government Agencies Wiratama, Adhitya; Samopa, Febriliyan
Jurnal IPTEK Vol 24, No 2 (2020)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2020.v24i2.1125

Abstract

Dalam meningkatkan layanannya kepada publik, Badan Pengelolaan Keuangan dan Pajak Daerah (BPKPD membutuhkan investasi dalam Sistem Informasi (SI) dan Teknologi Informasi (TI) untuk mendukung tata kelola organisasi. Oleh karena itu, investasi TI harus diterapkan dengan baik dan penuh pertimbangan, karena investasi SI/TI jika dialokasikan dengan tepat, dapat mendukung organisasi dalam menerapkan strategi bisnisnya. Berdasarkan permasalahan yang dialami BPKPD seperti investasi TI yang tidak sesuai dengan kebutuhan bisnis dan manajemen proyek yang tidak dikelola dengan baik, maka BPKPD harus jeli dalam menentukan kelayakan suatu proyek sebelum berinvestasi. Peneliti menggunakan dua metode, Ward and Peppard untuk menganalisis perencanaan strategis yang menghasilkan investasi apa yang diperlukan dan menggunakan Cost Benefit Analysis (CBA) untuk mengetahui apakah investasi menguntungkan atau merugikan serta untuk memilih investasi mana yang layak diprioritaskan. Penelitian ini menghasilkan usulan investasi yang terdiri dari: 5 usulan SI, 1 usulan TI dan 2 usulan Manajemen SI/TI. Delapan usulan investasi yang diperoleh dari analisis Ward and Peppard, selanjutnya dianalisis kelayakannya menggunakan metode CBA dan menghasilkan 1 usulan investasi TI yang tidak layak.
Optimization of Flour Smoke Making Through Microencapsulated Technology as Food Natural Preservatives Abrina Anggraini, Sinar Perbawani; Suryanti, Fenni
Jurnal IPTEK Vol 24, No 2 (2020)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2020.v24i2.983

Abstract

There should be a safe natural preservatives consumed to increase the shelf life of food products. Liquid smoke is a natural food preservative. Liquid smoke if left longer in storage will reduce the saving power of food products. There is a need to develop technology by changing liquid smoke into flour through microencapsulation technology so that it will improve the save power of food products. This research aims to determine long storage time and the optimal drying temperature in the manufacture of microparticle solutions to the quality of food products. In this research the process of pyrolysis and purification of liquid smoke from coconut shell by using pyrolysis, distillation and filtration processes using active zeolite and activated carbon. Then make solution encapsulation, drying, forming microparticles with destruction and sieve, after that applied to food products. Results of the research on the manufacture of optimum smoked flour in the treatment of drying temperature of 140 oC and maximum storage time 3 days with a pH value of 5, water content 28.470% and 3.120% protein content
Forecasting Analysis of Cement Selling (Non-Bulk) Using The Method of Triple Exponential Smoothing (Case study: PT. Lafarge Holcim Cement Indonesia) Zein, Ikramullah; Alsyah, Oloan; Apriliansyah, Surya
Jurnal IPTEK Vol 24, No 2 (2020)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2020.v24i2.311

Abstract

PT. Lafarge Holcim Cement Indonesia is one of the cement companies focusing on construction. The aim of this study is to analyze the sales forecasting applied to know the next period using Triple Exponential Smoothing. The results showed that the values of MAD, MSE and MAPE for PCC's bag are 3980, 20925291 and 13%, respectively. Meanwhuile, the values for OPC's bag are 105, 19497 and 14%, respectively. Furthermore, the forcasting result of the next period of cement selling for PCC's and OPC's bag are 32498 and 792, respectively. Triple exponential smoothing method is a suitable method to forecast the case that has small bias, such as the case in PT. Lafarge Holcim Cement Indonesia.
Modification of Recycled HDPE Composite with OPEFB Microfibers Through the Melt Blend Extruder Process Zulnazri, Zulnazri; Dewi, Rozanna; Sylvia, Novi
Jurnal IPTEK Vol 24, No 2 (2020)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2020.v24i2.928

Abstract

Oil palm empty fruit bunches (OPEFB), have not many been used as a have economic value material. OPEFB fiber content can be using as a filler to composites fabrication. The fiber contained in the OPEFB can be increase composites quality because have high thermal and mechanical properties. SEM analysis shows that OPEFB waste with a size of 63 and 90 ?m is suitable to be use as a filler because of the compatibility of the fiber and matrix matrix. As with the results of the DSC analysis, the melting point of HDPE-TKKS composite with 63 ?m fiber size reaches 133.58 0C while the melting point of HDPE-TKKS composite with 90 ?m fiber size reaches 134.41 0C. The FTIR test results also show that the indications of the two samples have the same chemical composition, namely lignicellulose. The best tensile strength is obtained which is equal to 21.11 MPa and the force required to break the composite is 391.56 N, these results were obtained from composites with a ratio of 60: 40 (matrix : filler) and 90 µm fiber size.Key words: Plastic, HDPE, fiber, OPEFB, composite 
Website Optimization Design to Cut Stock Problems in 1 and 2 Dimensions with Genetic Algorithms Kartolo, Sandy; Natalia, Christine
Jurnal IPTEK Vol 24, No 2 (2020)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2020.v24i2.781

Abstract

Many industries produce waste that cannot be reused, especially in the process of cutting raw materials. The use of raw materials that are not optimal indicates that the pattern of item placement on raw materials produces waste which cannot be used for other needs. This problem is known as cutting stock problem. This study aims to reduce the waste that arises when cutting raw material sheets into small pieces needed in the industry by developing a website as a tool in completing the placement of cutting patterns on raw materials. The developed website describes the results of optimal placement patterns in the form of images for 1 and 2 dimensions with the genetic algorithm method as an optimization algorithm using rectangle packing sequence in codification, cornerset modification algorithm on decoding, parameterized uniform crossover on crossover, roulette wheel on selection, and random generated mutations. Website development is made with hypertext markup language to display various information needed, cascading style sheets to arrange components in structured and uniform websites, and javascript to create genetic algorithm logic. This research resulted in the placement of cutting patterns on sheets of raw material on the canvas by labeling the names of each item.
Supply Chain Analysis Using Distribution Requirement Planning (DRP) Based On Bullwhip Effect Parameter (Case Study: Ud. Narwastu, Surabaya) Hariastuti, Ni Luh Putu; Fardiya, Elia; Dwicahyani, Anindya Rachma
Jurnal IPTEK Vol 24, No 2 (2020)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2020.v24i2.914

Abstract

Narwastu Firm is a company in Surabaya which produces traditional body care and aromatherapy. During the product distribution, this company encounters many mistakes such as inappropriateness between Purcashing Order (PO) from distributors/consumers and the goods delivered due to bullwhip effects. Therefore, this research aimed at reducing the bullwhip effects by implementing Collaborative, Planning, Forecasting, and Replenishment (CPFR) method and investigating a lot sizing technique for producing minimum distribution cost by Distribution Requirement Planning (DRP) method in order to regulate order and plan a certain distribution activity. The research results demonstrated that the bullwhip effect values after CPFR improvement of two products that could be repaired were 1.0 for Body Scrub Goats Milk Balibloom (BSC GM BB) 200 gr and 0.96 for Body Mist Sparkling White (BM SW) 60 ml. Meanwhile, the calculations by Distribution Requirement Planning (DRP) method with Economic Order Quantity (EOQ) method got the plans for ordering Body Scrub Lightening (BSC LIGHT) 200 gr by 182 times with total cost IDR 96,886,476 and Body Lotion Lightening (BL LIGHT) 250 ml by  235 times with total cost IDR 125,873,816.
Optimization of Flour Smoke Making Through Microencapsulated Technology as Food Natural Preservatives Sinar Perbawani Abrina Anggraini; Fenni Suryanti
Jurnal IPTEK Vol 24, No 2 (2020)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2020.v24i2.983

Abstract

There should be a safe natural preservatives consumed to increase the shelf life of food products. Liquid smoke is a natural food preservative. Liquid smoke if left longer in storage will reduce the saving power of food products. There is a need to develop technology by changing liquid smoke into flour through microencapsulation technology so that it will improve the save power of food products. This research aims to determine long storage time and the optimal drying temperature in the manufacture of microparticle solutions to the quality of food products. In this research the process of pyrolysis and purification of liquid smoke from coconut shell by using pyrolysis, distillation and filtration processes using active zeolite and activated carbon. Then make solution encapsulation, drying, forming microparticles with destruction and sieve, after that applied to food products. Results of the research on the manufacture of optimum smoked flour in the treatment of drying temperature of 140 oC and maximum storage time 3 days with a pH value of 5, water content 28.470% and 3.120% protein content
Modification of Recycled HDPE Composite with OPEFB Microfibers Through the Melt Blend Extruder Process Zulnazri Zulnazri; Rozanna Dewi; Novi Sylvia
Jurnal IPTEK Vol 24, No 2 (2020)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2020.v24i2.928

Abstract

Oil palm empty fruit bunches (OPEFB), have not many been used as a have economic value material. OPEFB fiber content can be using as a filler to composites fabrication. The fiber contained in the OPEFB can be increase composites quality because have high thermal and mechanical properties. SEM analysis shows that OPEFB waste with a size of 63 and 90 ?m is suitable to be use as a filler because of the compatibility of the fiber and matrix matrix. As with the results of the DSC analysis, the melting point of HDPE-TKKS composite with 63 ?m fiber size reaches 133.58 0C while the melting point of HDPE-TKKS composite with 90 ?m fiber size reaches 134.41 0C. The FTIR test results also show that the indications of the two samples have the same chemical composition, namely lignicellulose. The best tensile strength is obtained which is equal to 21.11 MPa and the force required to break the composite is 391.56 N, these results were obtained from composites with a ratio of 60: 40 (matrix : filler) and 90 µm fiber size.Key words: Plastic, HDPE, fiber, OPEFB, composite 

Page 1 of 2 | Total Record : 16