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IPTEK Journal of Proceedings Series
ISSN : 23546026     EISSN : -     DOI : -
Core Subject : Science,
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 689 Documents
Design of risk assessment and classification strategy using concentrated numeric statistic matrix and entropy method Nurhayati, A; Gautama, A
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 | Full PDF (156.162 KB) | DOI: 10.12962/j23546026.y2018i3.3705

Abstract

The construction project is a dynamic and risky field. Risks can have an effect on productivity, quality and cost limits of the project. Risk management is crucial for any construction project to avoid loss of cost, quality and time. This research was conducted at PT. XYZ. Risk identification is done through field survey and stakeholder interviews. There are 73 identified risks that are classified into 7 types of risks. Questionnaires were distributed to experts for probability and impact data. Calculation of probability average value and the risk impact are being done by concentrated numeric statistic matrix (CNSM) method. The final step in CNSM is the data consistency test using G reliability test. While the division of risk category uses entropy method. The benefits of combining these two methods are the assessment and classification of risk can be more accurate. CNSM will calculate the highest risk from all of the 73 identified risks. While entropy method will find the highest risk from the 7 risks type. From the result of the 2 methods, we can crosscheck to find the highest identified risk in the highest risk group type. The result shows that the risk of weather variability is the highest one.
Dynamics Finite Element for Ship Damage Collision Analysis Hasanudin, Hasanudin; Aryawan, Wasis Dwi; Zubaydi, Achamd; Putranto, Teguh
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 (420.742 KB) | DOI: 10.12962/j23546026.y2017i2.2308

Abstract

Abstract¾ Along with the growing fleet of vessels, ship collision accident cases are becoming more frequent. It is unavoidable that the rapid shipping due to the number of vessels that operate relatively large and the ship is waiting for the loading and unloading at the port. This study will examine the design of the solid bulk cargo ship safe for shipping operations congested areas. The finite element method is used to determine the amount of internal energy in the structure of damaged vessel. The striking ship is assumed a tanker that have a bulbous bow. Bulk carrier is designed with space of double skin 1.8 m and the structure of wing tank is determined previously. The results obtained from this research is the design of the cargo hold of bulk carrier that has a double skin to protect the leaking compartment when the ship was crashed. Penetration in depth 1.8 m will be occurred at ship if ship crashed is with speed 12 knots and weight 1400 tons.
Elaborating Appropriate Models of the Sustainable Financing Instrument in Public Private Partnerships (PPP) In Infrastructure Projects Thalib, Prawitra; Kurniawan, Faizal; Agustin, Erni; Amalia, Rizky
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 | Full PDF (78.277 KB) | DOI: 10.12962/j23546026.y2017i5.3173

Abstract

One alternative to accelerate infrastructure development in Indonesia is by involving the private sectors in the financing and development. In principle, Public Private Partnerships (PPP) can be classified into two, namely: a partnership project which idea came from the initiation of the government (solicited) and partnership project which idea came from the initiation of the business entities (unsolicited). To facilitate the implementation of the Public Private Partnership (PPP), the financing instruments that exist currently may be used to support the implementation of the Public Private Partnership (PPP). The importance of involving a third party other than investor and the government is related to the fulfillment of capital requirements and risks sharing in the event of loss. Although the rules clearly have been enacted, the infrastructure projects in Public Private Partnership (PPP) seem less attractive to investors. One of the causes is that the capital required by investors is too great with very high risk when investment in infrastructure is slow yielding. It is important to propose the scheme of sustainable financing which may allocate the PPPs’ risks proportionally.Until now, the government is too fixated with large cooperation projects with the private sectors, while the scheme offered is a Build-Operation-Transfer (BOT) scheme. This scheme is sometimes burden the investors, because the greatest risk is in the hands of investors. Regarding the financing of the Public Private Partnership (PPP), conventional financing such as a bank guarantee or sharia financing (‘kafalah’) can be carried out. Two such financing can be used in the Public Private Partnership (PPP), so it will increase the interest of investors to build infrastructure using Public Private Partnership (PPP). It is because such financing can overcome the difficulties of gaining large capital and also reduce the burden of risk borne by investors.
Maximum Peak-Gain Margin 2DOF-IMC Tuning for a 2DOF-PID Filter Set Point Controller Under Parametric Uncertainty Hidayah, Nur; Juwari, Juwari; Handogo, Renanto
IPTEK Journal of Proceedings Series Vol 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/j20882033.v1i1.308

Abstract

The specification of controller setting for a standard controller typically requires a trade-off between set point tracking and disturbance rejection. For this reason two simple strategies can be used to adjust the set point and disturbance responses independently. These strategies are referred to as controllers with two degree of freedom. Unfortunately, the tuning parameters in the case of model uncertainty at two degree of freedom structure controller is difficult to obtain. Juwari et al (2013) has introduced maximum peak-gain margin (Mp-GM) tuning method to obtain setting parameter of two degree of freedom structure controller based on model uncertainty. This tuning method are able to obtain the good controller parameter even under processes uncertainties on standard two degree of freedom (was abbreviated as 2DOF) IMC. This research will be conducted on development maximum peak-gain margin tuning method for a two degree of freedom PID filter set point structure controller. The simulation results show that the maximum peak gain margin tuning method can give a good target set point tracking, disturbance rejection and robustness in system a 2DOF-PID filter set point controller.
Development of a ‘Fish Tail’ Rudder to Improve a Ship’s Maneuverability in Seaway Sulisetyono, Aries
IPTEK Journal of Proceedings Series Vol 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/j20882033.v1i1.376

Abstract

The maneuverability of a ship at seaway is strongly influenced by a design of rudder. An innovative design of rudder based on a tail shape of fish was developed with the intent of improving an efficiency of ship maneuverability. Two designs of rudders were proposed i.e. the rudder of forked which is a rudder with an area reduction on the middle part, and the lanceolate shape or a rudder with additional area on the middle part. In evaluation of the rudder designs performance, the numerical approach of Computational Fluid Dynamic (CFD) was applied to determine a side force generated by rudder using the commercial software of FLUENT. Numerical simulations were performed on the rudder designed of rectangular, forked and lanceolate which had similar a surface area with the variations of rudder angle such as 100, 200 and 300 due to the uniform fluid flow at a constant speed. Further simulations was performed on the two forked rudder designed which takes into account the influence of propeller due to fluid flow on the rudder surface. It had shown the velocity of fluid flow behind the shaft of propeller very small in which the middle part of the rudder produced less lift force compare to the other part of rudder. Mathematical and numerical model of ship maneuvering were developed in order to evaluate the performance of a ship maneuvering in seaway based on the IMO standards on turning test. The simulation results had shown the rudder of forked produce the ship maneuvering performance that exceeds the performance of rectangular rudder as well as lanceolate rudder.
Synthesis of UiO-66 Using Solvothermal Method at High Temperature Rahmawati, Ika Diah; Ediati, Ratna; Prasetyoko, Didik
IPTEK Journal of Proceedings Series Vol 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/j20882033.v1i1.417

Abstract

UiO-66 solids have been synthesized using solvothermal method in which reaction mixtures of zirconium tetrachloride (ZrCl4) and 1,4-benzenedicarboxylic acid (BDC) in N-N-dimethylformamide (DMF) were heated at 140 °C for 6, 12, 24, 36, 48, 72 and 144 hours, respectively. The weight of reaction products, in the form white powder, increased with the increase in heating time up to 72 hours, then decreased. Characterization results using XRD showed that the diffractogram of the solid obtained at heating time of 6 h had the same pattern to that of reported UiO-66, characterized by a main peak with a high intensity at 2θ of 7.3°, as well as other characteristic peaks with lower intensity at 2θ of 8.4°; 25.6° and 30.6°. The longer the heating time (12 and 24 h), the lower the intensity of the main peak. When the reaction mixtures were heated for 36 h or longer, the obtained solid diffractograms showed that the main peak intensity at 2θ of 7.3° was lower than the second peak, and new peaks appeared at 2θ of 13.8°; 15.8° and 17.5°. SEM micrographs showed that the solid synthesized for 6 h was in the form of clusters of square morphology, whereas solids synthesized for 72 h showed needle-like surface morphology
On-line State Estimator for Three Phase Distribution Networks Displayed on Geographic Information System Suryawati, Indri; Penangsang, Ontoseno; Suprijanto, Adi; U. P., Dimas Fajar; Syai’in, Mat
IPTEK Journal of Proceedings Series Vol 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/j20882033.v1i1.371

Abstract

On line monitoring in distribution system suppose to keep the operation safe and reliable. It is connected measuring sensor that placed in nodes. To minimize great cost of sensors placement, state estimator is needed. This paper proposes online state estimator using neural network. Neural network distribution state estimation solves voltage estimation by using learning approach from power flow patterns. K-matrix distribution power flow is used as analysis method. Detailed information and position of network utility is displayed by Geographic Information System (GIS), control can easily do. NNDSE was design and test for single and three phase network. The results show that NNDSE reduce sensor almost 50%.
Design of Curriculum Matrix for Robotics Education Derived from Blooms Taxonomy and Educational Curriculum of 2013 Binugroho, Eko Henfri; Suryawati Ningrum, Endah; Kurnia Basuki, Dwi; Rachmat Anom Besari, Adnan
IPTEK Journal of Proceedings Series Vol 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/j20882033.v1i1.338

Abstract

Even though robotics have gaining an attention from students of every educational level since elementary school up to higher education, their impact in student’s education itself is still relatively small. Most of the robotics competitions in Indonesia are still focus on the result but not in the process. This paper presents an educational matrix of curriculum based on robotics which focused on the process and learning outcomes of the education. The proposed Curriculum Matrix is derived from Blooms Taxonomy which synchronized with the Educational Curriculum of 2013 from the Indonesian Ministry of Education and Culture. Hereafter, the activities of education are designed based the available robotics module together with the designed Curriculum Matrix. By using the Curriculum Matrix, the proportion of education activities can be evaluated to achieve the learning outcomes for the specified educational level more easily
Impacts of River Groove Propagation on Irrigation Infrastructural Failures Kuntjoro, Kuntjoro; Anwar, Choirul; Harijanto, Didik
IPTEK Journal of Proceedings Series Vol 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/j20882033.v1i1.435

Abstract

Water supply of irrigation intakes are generally from the river. The system considers the lowest water level of the river on its mechanism. River groove propagation is a development of erosion at some parts and at the same time a development of sedimentation at the other parts of the river bed. This phenomenon is identified as an indication that cause the flood which might endangers the surrounding infrastructures. Analysis by KUN-QARSHOV method on Brantas river groove propagation in Mojokerto areas is acquired. Most progressive vertical meander shifting is at cross section KB63. The shift isas deep as 0.38 metres per year. The second progressive vertical meander shifting is at cross section KB64. The shift is as deep as 0.27 metres per year. The most progressive horizontal meander shifting is at cross section KB64. The horizontal shift moves toward the right cliff at 0.17 metres per year. The second progressive horizontal meander shifting occurs at cross section KB63. The horizontal shift moves toward the right cliff at 0.14 metres per year. The groove propagation could be more dangerous if there is a combination between vertical and horizontal shifts at the same time that might cause severe cliff slides. The failure of the irrigation sytem at Brantas River in Mojokerto areas was due to the water level of the river below the irrigation intake level. Among others are the intakes at Keboan, Ngareskidul, and Gedeg irrigation areas. Another is due to the erosion of river bed at the syphon of Watudakon irrigation area.
Viscous-Resistance Calculation and Verification of Remotely Operated Inspection Submarine Yulianto, Ardi Nugroho; Suastika, I Ketut; Sulisetyono, Aries
IPTEK Journal of Proceedings Series Vol 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/j20882033.v1i1.337

Abstract

The purpose of the present study is to calculate and verify the viscous resistance of a remotely operated inspection submarine which is used for the purpose of underwater inspections.The focus of the study is to investigate the effect of a vertical fin on the total value of the viscous resistance. In the design of a submarine, determination of the viscous resistance plays an important role. The smaller the viscous resistance,  the smaller is the engine power to be required, which results in a more economic vehicle during the operation. Viscous resistance calculationswere done by computational fluid dynamics (CFD) and verifications by wind tunnel experiments. Three models of submarines were simulated and tested. Results of data analysis show that the effect of an installation of a vertical fin on the total viscous resistance is not detectable in the current experimental setting. Furthermore, comparisons between simulation and experimental results show that the root mean square errors (RMSE) are, respectively, 2.48 x 10-3, 3.18 x 10-3 and 2.88 x 10-3 for model I, II and III.

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