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IPTEK Journal of Proceedings Series
Published by Institut Teknologi Sepuluh Nopember Surabaya
ISSN : 23546026     EISSN : -     DOI : -
Core Subject : Science,
Computer Science & IT
IPTEK Journal of Proceedings Series publishes is a journal that contains research work presented in conferences organized by Institut Teknologi Sepuluh Nopember. ISSN: 2354-6026. The First publication in 2013 year from all of full paper in International Conference on Aplied Technology, Science, and Art (APTECS). It publish one time a year after the held of APTECS event.
Arjuna Subject : -
Articles 1,079 Documents
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Water Quality Assessment Along Lower Hlaing River Cho Cho Thin Kyi; Theigyi Ye Myint
IPTEK Journal of Proceedings Series No 6 (2017): The 3rd International Conference on Civil Engineering Research (ICCER) 2017
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2017i6.3256

Abstract

In this study, water quality of Hlaing River was monitored along the downstream reach during low flow periods and water samples were collected once a week during January and February. Stations for sample collection were fixed after site survey. There are altogether 14 stations to analyse water quality of the study river reach. The monitoring program includes collection of samples from seven locations along the river into which seven streams discharge. These samples were analysed for a number of water quality parameters such as temperature, total dissolve solid,  total suspended solid, Conductivity, Salinity, pH, BOD, COD and Arsenic. The results of water quality parameters showed significant variation in water quality of the river and the water quality monitoring data were compared to the water quality standards for different uses. It is found that water quality of Hlaing River deteriorates and doesn’t meet the requirements for conserving of living environment due to the pollution from the tributary streams which received wastewater from adjacent industrial zones and newly Satellite town.
Aquaculture Water Quality Prediction using Smooth SVM Wijayanti Nurul Khotimah
IPTEK Journal of Proceedings Series Vol 1, No 1 (2014): International Seminar on Applied Technology, Science, and Arts (APTECS) 2013
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2014i1.306

Abstract

Aquaculture, aqua farming, is the farming of aquatic organism such as fish, crustaceans, mollusk and aquatic plan. There are many factors that influence the production of aquaculture such as food stocks, protection from other predators, and water quality custody. In modern intensive river aquaculture management, water quality prediction plays an important role. The water quality indicator series are nonlinear and non-stationer. Hence, the accuracy of the commonly used conventional methods, including regression analyses and neural networks, were limited. A prediction model based on Smooth Support Vector Machine (SSVM) is proposed in this research to predict the aquaculture water quality. SSVM is an algorithm that is used for solving no linear function estimation problems. The data used in this research are data of river in Surabaya collected for two years. The data have twenty variables that indicate water quality such as temperature, turbidity, color, SS, pH, alkalinity, free CO2, DO, Nitrite, Ammonia, Copper, phosphate, sulfide, iron, Hexavalent Chromium, Manganese, Zinc, Lead, COD, and Detergents. From 520 instance data, we used 5-fold for the experiment. The Root Mean Square Error (RMSE) of the experiment is 0.0275. This value shows that SSVM proven to be an effective approach to predict aquaculture water quality.
A Comparative Study of Public Open Space Handling Methodology in Urban Area B W Sulistyo; Antariksa Antariksa; Surjono Surjono; L Hakim
IPTEK Journal of Proceedings Series No 6 (2018): International Conference on Advanced Engineering and Technology (ICATECH) 2018
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2018i6.4671

Abstract

Public open spaces (POS) handling in urban areas, regardless of their form, can be approached by various methods based on the potential and problems that exist in the POS. The public open spaces here can be in the form of green open spaces in the area, roads, parks, or outside natural spaces that function as public service facilities, including areas of the site developed into POS. Through this article we will look at four different cases for POS in three European cities and one Indonesian city which are carried out with different approaches as presented from the four scientific articles studied. The selected cities are located in Turkey, Cyprus, Montenegro and Denpasar, Indonesia. The reason for choosing four cities in various countries was also based on the physical and cultural character of these countries. By studying the different approaches taken, it is hoped that an understanding of the relationship between POS management results and the POS factual problems will result in the conclusion of the most appropriate approach to choose. Thus, it is expected to also find a relationship between the physical and cultural character of a country with the pattern of handling the city's public space.
Comitte IConISE 2017 IConISE 2017, Comitte
IPTEK Journal of Proceedings Series No 3 (2018): International Conference on Industrial and System Engineering (IConISE) 2017
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2018i3.3697

Abstract

Comitte IConISE 2017
Numerical Analysis On Truss Bridge Performance Due To Structural Elements Strength Reduction Octariasari, Hajar Dwianandha; Wahyuningtyas, Winda Tri; Ma’ruf, M. Farid
IPTEK Journal of Proceedings Series No 6 (2017): The 3rd International Conference on Civil Engineering Research (ICCER) 2017
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2017i6.3280

Abstract

Structural element deterioration of truss bridge will change the performance of the system. Earlier identification leads to better bridge maintenance program to prevent bridge failure. A numerical analysis has been employed to truss bridge. Structural element damage was modeled by applying strength reduction on the element through reducing its cross area. Truss bridge with various single structural element strength reductions up to 20% was simulated. The bridge performance was evaluated based on the induced deflection. The results show that the onset of maximum deflection is the middle of the span and is independent of the element to which the strength reduction employed. Meanwhile, the impacted element experiences increasing moment after strength reduction
An Electronic Traceability System for an Indonesian Fresh Fruit Supply Chain Vanany, Iwan; Andri, Kuntoro Boga; Mardiyanto, Ronny; Puspita, Niniek Fajar; Winarsih, Wiwik Heny
IPTEK Journal of Proceedings Series Vol 1, No 1 (2014): International Seminar on Applied Technology, Science, and Arts (APTECS) 2013
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2014i1.297

Abstract

Nowdays, traceability system for agriculture comodity is mandatory requirements in some countries such as Japan, United States, and all European countries. All export agricultural companies must applied traceability system to fulfill the mandates of goverments market requirements. Traceability system also has beneficials to reduce products return and improve efficiencies and effectiveness their inventory. Electronic traceability system is relatively new and is believed by many experts to have the advantages than paper-based traceability system such as: integration of data to multiple users, the accuracy of data input and control and monitoring easier and faster. Although the recent problems of traceability becomes the important issues in food and agriculture supply chain, but a few researchers to design and implement electronic traceability system especially to integrate multi-user and in supply chain contex. This paper develop the electronic traceability system products including software for electronic traceability system and barcode technology. Unified Modelling Language (UML) is used to design traceabilty system model that was described a usecase, state and sequence diagram. Based on these models, electronic traceability system was developed by adopting XAMPP control panel. Indonesian mangosteen and manggo fruits were chosen as a case study in order to validate electronic traceability system. The results showed that the electronic traceability system product is relatif support to helps members of supply chain to complete their traceability system capabilities for the benefit of mangosteen and mango exports
The Effect of Expectancy, Satisfaction of Product Attributes and System Attributes in Repurchasing Online Wibawa, Rindu Puspita; Subriadi, Apol Pribadi
IPTEK Journal of Proceedings Series No 1 (2019): 4th International Seminar on Science and Technology 2018 (ISST 2018)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2019i1.5113

Abstract

The growth of e-commerce in Indonesia at early January 2018, 45% of internet users looking for products or services to be purchased online, 45% users visit online retail stores, and 40% users make purchases of a product or service online. Bank Indonesia estimates the value of e-commerce transactions in 2018 reached 144 trillion rupiahs. Based on data of Badan Koordinasi Penanaman Modal (BKPM), the value of investments in e-commerce and financial technology reaches more than US $ 5 billion. The critical measure of success factors for online stores is the behavior of repeat purchases by consumers. Expectancy and satisfaction of product attributes and system attributes can be the factors that affect online repurchasing. These factors have a positive effect on online repeat purchase. To deepen the phenomenon of the influence in expectancy and satisfaction on product attributes and system attributes, researchers conducted in-depth analysis using qualitative methods. The qualitative method used is a phenomenological approach so that it can describe general meaning of some individuals about life experiences related to the phenomenon. The result of this research is the implications for e-commerce developers. The implications are based on research findings based on e-commerce users, both buyers and experts in the field of business and communication. The implications hopefully can provide insight into the factors affecting the community to shop online in Indonesia and help e-commerce in Indonesia to improve and expand its business
Study of Morphology of Film Reduced Graphene Oxide from Coconut Shell Mas’udah, Kusuma Wardhani; Astuti, Fahmi; Darminto, Darminto
IPTEK Journal of Proceedings Series No 1 (2015): 1st International Seminar on Science and Technology (ISST) 2015
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2015i1.1201

Abstract

Coconut shell as the main ingredient in this study were converted into charcoal. The resulted sample coconut shell charcoal was used as a powder and heated. After heating, the powder was dissolved into distilled water. They were coated on the glass substrates using a spin-coating method. Furthermore, this study characterizations using Scanning Electron Microscopy-Energy Dispersive X-ray (SEM-EDX) were conducted for all samples. r-GO layer coconut shell has been successfully made on glass substrates, is shown with layers that have accumulated weight percentage of carbon atoms in each sample layer, that is equal to 84.55% and 20.61%.
Analisis Kinerja Pelayanan Pemanduan Kapal Terhadap Waktu Tunggu (Waiting Time) Di Pelabuhan Tanjung Perak Andrianto, Yudha; Wicaksono, Achmad; Anwar, M. Ruslin
IPTEK Journal of Proceedings Series No 5 (2017): Simposium I Jaringan Perguruan Tinggi untuk Pembangunan Infrastruktur Indonesia (2016)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2017i5.3114

Abstract

Pelabuhan Tanjung Perak terintegrasi dengan Pelabuhan Teluk Lamong, Gresik, Socah dan Bulupandan sebagai penunjang memperlancar kegiatan arus lalu lintas transportasi angkutan laut dan penggerak dalam meningkatkan pertumbuhan ekonomi di Jawa Timur. Kinerja operasional pelabuhan menggambarkan tingkat pelayanan yang meliputi pelayanan kapal (labuh, tambat, pandu, tunda dan air) dan pelayanan barang (jasa dermaga dan penumpukan). Ketepatan waktu untuk dapat bersandar di dermaga merupakan penilaian kinerja pelayanan pemanduan kapal, karena mempengaruhi waktu tunggu. Penelitian ini untuk mengetahui kondisi eksisting pelayanan pemanduan kapal dan memberikan strategi perbaikannya. Metode yang digunakan dalam penelitian ini adalah IPA dan SWOT secara subjektif. Hasil penelitian kinerja pelayanan pemanduan di pelabuhan Tanjung Perak saat ini dinilai tidak sesuai dengan standar kinerja, terdapat sebanyak 5.883 kapal dari 8.956 jumlah kunjungan kapal dalam 1 tahun memiliki waktu tunggu lebih dari 2 jam. Persepsi pengguna jasa tidak puas terhadap kinerja pelayanan pemanduan kapal, dinilai penting untuk tingkat kepentingannya. Hal-hal pada aspek pelayanan pemanduan kapal yang penting, dinilai tidak puas tingkat kinerjanya yaitu ketepatan pelayanan dokumen, SBNP, ketersediaan kapal tunda/pandu dan ketersediaan failitas untuk petugas pandu. Beberapa hasil analisis dan wawancara menjadi faktor eksternal dan internal permasalahan yang timbul pada pelayanan pemanduan kapal untuk mendapat strategi perbaikan yaitu perlu adanya pembaharuan SISPRO pemanduan kapal serta kerjasama di bidang usaha penyediaan fasilitas operasional pelaksanaan pelayanan pemanduan kapal ataupun untuk menyediakan perawatan alur pelayaran, mengurangi waktu tunggu yang berdampak pada biaya (cost) yang selama ini merugikan dunia usaha dan konsumen. 
Investigation on Structural and Optical Properties of ZnO Film Prepared by Simple Wet Chemical Method Sholehah, Amalia; Mulyadi, Rendi; Haryono, Didied; Muttakin, Imamul; Rusbana, Tb Bahtiar; Mardiyanto, Mardiyanto
IPTEK Journal of Proceedings Series No 4 (2018): The 3rd International Conference On Materials and Metallurgical Engineering and Technol
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2018i4.3838

Abstract

ZnO thin layer has a broad potential application in electronic and optoelectronic devices. In this study, vertically align ZnO layers were deposited on ITO glass using wet chemistry method. The seed layers were prepared using electrodeposition technique at 3°C. The growing process was carried out using chemical bath deposition at 90°C. To improve the structural properties, two different hydrothermal treatment variations were applied separately. From the experiment, it is shown that the hydrothermal process using N2 gas has given better results, compared to the conventional treatment.

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