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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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Study of Core Material Sandwich Panel In Ship Construction Utomo, Edy; Zubaydi, Achmad; Pratisna, Pompy
IPTEK Journal of Proceedings Series No 2 (2017): The 2nd Internasional Seminar on Science and Technology (ISST) 2016
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (562.733 KB) | DOI: 10.12962/j23546026.y2017i2.2304

Abstract

Abstract¾Sandwich panel in ship construction necessitates identification for the core material. Non-metal cores of sandwich materials were identifiedin this study for polyurethane foam, polyresin, and synthetic resin. This material identification was conducted through experiments using Det Norske Veritas (DNV) standard tests. The experiments conducted were reactivity test, density test, and tensile test. Results of the investigation show that the core material suitable for the sandwich panel is synthetic resin with composition of 50% resin,50% talc and 0.3% catalyst. The density of the material is 1,728 kg/m3, tensile strength is 24.75 Mpa, modulus of elastisity is 546.95 Mpa, and shear modulus is 273.48 Mpa. 
Effect of Heat Input with Current Variation on Weld Overlay GTAW Method with ERNi-CI and ERNiFe-CI Fillers on Mechanical Properties and Micro Structure of Main Cap Product Laisa, Muhammad Ikbal; Sulistijono, Sulistijono; Awali, Jatmoko
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 | Full PDF (831.861 KB) | DOI: 10.12962/j23546026.y2018i4.3842

Abstract

Weld overlay is one of veneering method that do by welding on the base metal, so there is wear resistant, additional layer and corrosion resistant. Vibration load that work continue on engine block causing worn out on the components that be in the engine block, one of which occurs on both sides of the main cap that directly intersect to the engine block, however it needed an appropriate repair method that is weld overlay method that giving additional layer and wear resistant. This research is using filler ERNi-CI dan ERNiFe-CI on weld overlay method GTAW with current variation on main cap that made from nodular cast iron. Trials that did is conducted metallography and hardeness. The observation result of metallography show that micro structure in HAZ area and base metal contain more ferrite on the lower current. The more heat input however the more it decreasing hardeness value on weld metal and fusion line. This is caused by the more heat input, however cooling that happens become slow. The hardeness value of welding filler ERNiFe-CI is more high than the hardeness value of welding filler ERNi-CI effect of influence the numbers of nickel composition on the filler.
Prediction of Flexible Pavement Deflection Based on Falling Weight Deflectometer, FWD, for Highways Traversed by Heavy Overloaded Vehicles (Case Study on Arterial And Collector Roads in Tuban, East Java, Indonesia) Catur Arif Prastyanto; Indrasurya B. Mochtar
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 | Full PDF (376.672 KB) | DOI: 10.12962/j23546026.y2017i6.3316

Abstract

Falling Weight Deflectometer, FWD, is the most popular equipment used to measure the deflection of  flexible pavement in Indonesia. The loading used during application of the FWD equipment generally correlates directly with those of the loads of standard heavy vehicles. Therefore, the resulted pavement deflections obtained from the tests should be also suitable for highways traversed by standard normal vehicles only. This may not be the case for highways in Indonesia, where most trucks are highly overloaded, so much beyond the allowable standard loads. The existing method of FWD test may not be representative anymore to measure the actual pavement deflections under highly overloaded vehicles. In this paper, the authors describe their findings about deflections of flexible pavement when the pavements were subjected by heavily overloaded vehicles. The first step is to modify the FWD equipment with larger falling distances and heavier loads to simulate the highly overloaded vehicles in Indonesia. Based on the results and by using statistical approach, a new mathematical equation can be derived to reflect the functions of actual pavement deflections under much higher loads when compared to those of standard normal load. Therefore, using this new equation one can predict the actual pavement deflection under highly overloaded vehicles, by just performing standard FWD test of standard loads on the pavement, so that the design of overlay thickness can be modified accordingly to be applicable to overloaded traffic in Indonesia.
Abstract of Invited Speaker : Green Concept in Engineering Practice Biyanto, Totok Ruki
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 | Full PDF (559.126 KB) | DOI: 10.12962/j23546026.y2015i1.1119

Abstract

In recent time, becoming green is not only a matter of compliance with regulations, however it is a matter of responding to the expectations and demands of our world, country, community, stockholders, customers, employees and competitors. These matters create tremendous pressure for companies to carry out their activities in a more environmental friendly.Being green requires the best engineering minds and commitment from the entire organization. Engineering is all  about  practicality  finding  solutions  to  improve  theconditions. Excellent understanding of the fundamental engineering  is  a  key  to  helping  industrial  activities  tobecome greener and the engineers are in an ideal position to contribute in these activities, in term of development andimplementation of technologically sound, as well as cost- effective solutions.Green initiatives create big business opportunities in the order of trillions of dollars for innovative companies and engineers,  in  this  decade.  These  business  activities  arestarted from research and development, plant design, plant construction and plant operation stage. This paper presents some ideas on how to implement the green concept in engineering  activities.  The  case  studies  application  ofgreen engineering in refinery crude preheat train and cement plant waste heat recovery generation are also presented
Analysis on the Effect of Map Projection System for Area Calculation Yustisi Lumban-Gaol; Ayu N. Safi’i; Prayudha Hartanto; Tia R. N. Rachma
IPTEK Journal of Proceedings Series No 2 (2019): The 3rd Geomatics International Conference (GEOICON) 2018
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (785.181 KB) | DOI: 10.12962/j23546026.y2019i2.5310

Abstract

Map projection is required for modeling the earth from sphere into flat form. Out of so many types of projection systems, Universal Transverse Mercator (UTM) is the most common map projection system used in Indonesia. The concept of Mercator projection system is to maintain the angle but cause distortion on the area and distance. This will become problem if it is used for calculating an area that require minimum distortion, especially on a large scale. This study aims to find out the effect of the projection system for any scale to the area, and find out the best projections system in Indonesia. In this paper, the area was calculated using 72 projection systems with various scale using MATLAB software. The reference area that considered true was the polygon area of an ellipsoid so the difference between area of ellipsoid and projection can be known. The projection systems that give minimum distortion are the most optimum result. Based on the study, the most suitable projection system for calculating the area with minimal distortion is Collignon for 1: 250,000 scale and 1: 50,000, Eckert II projection system for 1: 25,000 scale and Equal-area Conic Albers Standard projection system for scale 1: 5,000.
Factors Affecting the Implementation of Green Procurement in Indonesia Construction Industry Novilia Hardiani; Tri Joko Wahyu Adi
IPTEK Journal of Proceedings Series No 2 (2017): The 2nd Internasional Seminar on Science and Technology (ISST) 2016
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (391.421 KB) | DOI: 10.12962/j23546026.y2017i2.2278

Abstract

A construction industry is often described as inefficient, irresponsible towards environment and society. This research aimed to analyze the factors affecting the implementation of green procurement in Indonesia construction industry. The research project specifically focuses on a construction material procurement. For this purpose, 26 factors were identified and project managers who worked on construction companies with large grade of national / international scales belonging to the association of construction in Surabaya were interviewed. The relative importance on these factors were quantified by Relative Importance Index and Confidence Interval. The result showed that the factors affecting implementation of green procurement in Indonesia construction industry were requirement document (contract) and cost efficient from energy and waste saving.
Study of Company X Mineral Water Production System by Using Hazard Analysis Critical Control Point Method Made Urmylla Lyyasintha Sunaya; Nieke Karnaningroem; Mas Agus Mardyanto
IPTEK Journal of Proceedings Series No 5 (2019): The 1st International Conference on Business and Management of Technology (IConBMT)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2019i5.6412

Abstract

Drinking water is human essential need. However, there are so many contaminants contained in drinking water sources. One of the solutions to overcome this issue is using technology to produce clean drinking water which called mineral water. Mineral water industries come to understand that maintaining quality is the fundamental principle to increase sales. One of the mineral water industries in Indonesia is company X. Yet it does not have a thorough management and supervision method to control the product quality. The quality management and supervision method is used only on several aspects of production and after acquiring customer complaints. This emerges the need of company x to form an applicable, comprehensive, and standardized management system. To produce high-quality mineral water, company X can apply HACCP method. HACCP (Hazard Analysis Critical Control Point) is a system used for measuring risks and determine the control system that focused on prevention. There are five primary principles in HACCP method. Accordingly from this analysis, maintaining the unit performance, adding more detailed SOPs, and employee knowledge enhancement are the main focused of HACCP method in company X. Therefore, HACCP is a suitable method to monitor company X production system and increase the product quality
SENTRA GERABAH DESA SELOGABUS, KEC. PARENGAN TUBAN, PILIHAN UNTUK PUNAH; PERAJINNYA BERALIH MENJADI TKW ATAU PEMBANTU RUMAH TANGGA Soebroto, R. Bambang Gatot
IPTEK Journal of Proceedings Series No 5 (2018): Seminar Nasional Teknologi dan Perubahan (SEMATEKSOS) 3 2018
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1510.258 KB) | DOI: 10.12962/j23546026.y2018i5.4439

Abstract

Gerabah dari desa Selobagus adalah benda yang menjadi citra mula kemajuan suatu peradapan.  Permasalahannya, semakin hari perajinnya yang berasal dari kelompok ibu-ibu yang berusia telah lanjut tidak mampu memperhitungkan biaya produksi yang meliputi  tenaga, bahan baku tanah liat, keahlian membuat, dan bahan bakar untuk menetapkan harga jual. Permasalahan berikutnya hampir setiap tahun tidak pernah berhasil kontinyu mendapat bantuan kegiatan PPM ITS.  Akibatnya kegiatan pengembangan desa Selogabus tersebut tidak maksimal.  Penghasilan, order pesanan, bantuan pengetahuan ke perajin berkurang, target-target jangka pendek, menengah, panjang tidak tercapai.Tujuan penulisan makalah ini sebagai laporan evaluasi terbuka, supaya kegiatan Abdimas PPM ITS di kabupaten Tuban (Semen Gresik atau Pertamina). Hasil yang diharapkan, kabupaten Tuban memiliki SDM terampil, sumber bahan baku bermutu, dan  ITS sebagai perguruan tinggi negeri yang diberi eran besar untuk mengembangkan dapat tercapai target-target ke depan.  Tanpa peran besar ITS secara tidak langsung melakukan pembiaran, kepunahan kerajinan gerabah di pedesaan Tuban, malah beralih menjadi TKW dan Pembantu Rumah Tangga.
Identifikasi Aktivitas Manajemen Perubahan Organisasi pada Implementasi ERP di PT Perkebunan Nusantara XI Menggunakan Model ADKAR Achmad Holil Noor Ali; Eko Wahyu Tyas Darmaningrat; Rizki Nugraha Anundra
IPTEK Journal of Proceedings Series No 2 (2018): The 2nd Conference on Innovation and Industrial Applications (CINIA 2016)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (268.892 KB) | DOI: 10.12962/j23546026.y2018i1.3380

Abstract

Enterprise Resource Planning (ERP) merupakan sistem yang kompleks sehingga angka kegagalan dalam proyek implementasinya sangat tinggi. Manajemen perubahan yang kurang baik merupakan salah satu faktor penyebab kegagalannya. PT Perkebunan Nusantara XI (PTPN XI), salah satu perusahaan Badan Umum Milik Negara (BUMN) yang bergerak dibidang agribisnis akan mengimplementasikan ERP, sehingga manajemen perubahan yang baik dirasa perlu agar implementasi ERP berjalan sukses. ADKAR merupakan salah satu model manajemen perubahan organisasi akan digunakan sebagai dasar perencanaan strategi manajemen perubahan organisasi di PTPN XI. Pada tahap perencanaan implementasi ERP, manajemen perubahan dapat diinisiasi melalui sebuah strategi yang diwujudkan dengan berbagai aktivitas untuk membangun kesadaran (awareness), menumbuhkan keinginan (desire) serta memberikan pengetahuan (knowledge). Seluruh aktivitas ini didapatkan dari hasil analisis literatur yang disesuaikan dengan kondisi di PTPN XI melalui observasi, wawancara dan diskusi dengan Kepala Divisi TI PTPN XI. Hasil dari penelitian ini berupa kumpulan aktivitas manajemen perubahan yang dipetakan berdasarkan elemen ADKAR dan diurutkan berdasarkan tingkat keefektifannya. Bentuk kumpulan aktivitas tersebut juga digambarkan dalam sebuah roadmap manajemen perubahan organisasi untuk proses implementasi ERP di PTPN XI.
Parsing Indonesian Syntactic with Recursive Neural Network Putra, Karisma Trinanda; Purwanto, Djoko; Mardiyanto, Ronny
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 | Full PDF (340.997 KB) | DOI: 10.12962/j23546026.y2015i1.1050

Abstract

Sentence is a form of human communication which is closely related to language system. Sentence is one of the recursive structures that are often found in daily conversation. Learning syntactic structure is useful to explore the meaning of the sentence contained on it or translated it into another language such as machine language. The problem is meaning, ambiguity, and the language that is not according to the rules of syntax, causing the command translation become more complex. This research is about parsing Indonesian syntax based on natural language rules for applications in the field of human-machine interaction. Each word that is a part of the sentence, is mapped into vector-space model. To estimate the potential connection of two words, we use the recursive neural network. The potential connection of two words translated into a higher structure to obtain a complete sentence structure. We obtain 93% accuracy, with 50 data-set are given in the learning process to represent a hundred vocabularies.

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