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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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Vulnerability Assessment of Reinforced Concrete Building Subjected to Seismic Loads Using Pushover Analysis Endah Wahyuni; Data Iranata; Heppy Kristijanto
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.y2014i1.377

Abstract

Buildings should be designed to withstand an earthquake based on earthquake planning standard. However, the references used in the regulation could not show building performance to the actual earthquake directly. Therefore, it required an assessment of the existing buildings, in order to evaluate their vulnerability (structural performance level).This study discussed the vulnerability assessment of reinforced concrete buildings from the analysis of the relationship between base shear and displacement, and any failure that occurred.The first step of the evaluation was analyzed the seismic loads with Static Nonlinear (Pushover) Analysis using SAP2000 software. The pushover analysis results showed the level of damage to assessthe building damages. This research was based on SNI 03-1726-2002, Federal Emergency Management Agency (FEMA) 273/356, FEMA 440, and the Applied Technology Council (ATC)-40. Displacement values obtained from Pushover Analysis compared with the field studies. From the pushover analysis, the results obtained the capacity curve showing the relationships between the base shearsand the displacements, reviewed at each elastic conditions, ultimate, plastic and collapse. The numerical results turned out to be closed to the performance level of the structure in the field. Thus the analysis can be used as a reference on an assessment level of performance and behavior of the existing structure as well as the vulnerability of the structure.
Organizing Committee ISST 2018 Committee ISST 2018
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.y2019i1.5132

Abstract

Organizing Committee ISST 2018
Surface Functionalization of Upconversion Nanoparticle for Biological Usage Devi Wahyuningtyas; Hsien-Ming Lee; Hua-De Gao
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.y2015i1.1181

Abstract

Upconversion nanoparticle (UCNP) coated with uniform silica shells, which were further functionalized with poly(ethylene glycol) (PEG) and (3-aminopropyl)triethoxysilane (APTES), produces water dispersible core-shell structured UCNPs with average hydrodynamic size around 100 nm. The hydrothermal treatment to the particle stabilize amines of APTES on the surface of UCNPs. The stable and positive zeta potential also prove that the amines is successfully attached on the particle’s surface, with good stability in colloidal solution. We also discovered that hydrothermal treatment temperature over 200 oC diminish the luminescence properties of UCNPs.
Purification and Components Identification on Spinach (Amaranthus sp. L.) and Broccoli (Brassica oleracea L.) Fermented by Kombucha Culture as Source of Folic Acid Through Stirred Microfiltration Cell (SMFC) Agustine Susilowati; Aspiyanto Aspiyanto; Puspa D. Lotulung; Hakiki Melanie; Yati M
IPTEK Journal of Proceedings Series No 4 (2017): 2nd International Seminar on Chemistry 2016
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2017i4.3744

Abstract

Purifying spinach (Amaranthus sp.) and broccoli (Brassica oleracea L.) fermented by Kombucha culture through microfiltration (MF) membrane of 0.15 µm fitted in Stirred Microfiltration Cell (SMFC) produced subsequently both fermented spinach and broccoli concentrates with compositions of folic acid of 58.9 µg/mL and 28.1 µg/mL, total solids of 6.29 % and 5.76 %, total acids of 0.57 % and 0.93 %, polyphenol of 0.25 % and 0.06 %, and reducing sugars of 105.34 mg/mL and 66.09 mg/mL. In these conditions, recovery of both fermented spinach and broccoli concentrates mentioned above were 1.07 times and 0.64 times, 0.95 times and 0.97 times, 1 times and 1 times, 3.57 times and 0.85 times, 1.22 times  and 0.68 times compared to feed, Based on both the best molecular weight (MW) and relative intensity, dominant monomer was reached for fermented spinach extract and gave folic acid fractionation, folic acid and polyphenol with MW of 219.57 Dalton (Da.), 442.99 Da. and  192.11 Da., and relative intensities of 19.78 %, 0.81 % and 1.65 %, respectively.
Elaborating Appropriate Models of the Sustainable Financing Instrument in Public Private Partnerships (PPP) In Infrastructure Projects Prawitra Thalib; Faizal Kurniawan; Erni Agustin; Rizky Amalia
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.y2017i5.3173

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.
Microstructures Behavior in Biomedical Co-Cr-Mo-C-Si-Mn Alloys Containing Nitrogen Alfirano Alfirano
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.y2014i1.246

Abstract

The precipitates in as-cast and heat-treated biomedical Co-28Cr-6Mo-0.25C-0.175N-(0–1)Si-(0–1)Mn alloys (wt.%) were investigated. The precipitates observed in the as-cast and heat-treated Co-Cr-Mo-C-N alloys were of the M23X6 type, M2X type, p-phase, and h-phase. A blocky-dense p-phase precipitate and a lamellar cellular colony, which consisted of an M2X type precipitate and a g-phase, were mainly detected in the as-cast alloys with and without added Si, respectively. The addition of nitrogen caused cellular precipitation, while the addition of Si suppressed it and enhanced the formation of the π-phase. The addition of nitrogen decreased the time required for complete precipitate dissolution at low heat-treatment temperatures. At high temperatures, complete precipitate dissolution was delayed by the partial melting that accompanied the formation of the precipitates such as the p-phase
The Erythemato-Squamous Dermatology Diseases Severity Determination using Self-Organizing Map Haryanto Haryanto; Miftahul Ulum; Diana Rahmawati Rahmawati; Koko Joni; Ahmad Ubaidillah; Riza Alfita; Lilik Anifah; Bain Khusnul 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.y2014i1.358

Abstract

A new approach based on the implementation of Self Organizing Map is presented for automated detection of erythemato-squamous diseases. The purpose of clustering techniques is in order to determinate the severity of erythemato-squamous dermatology diseases. The studied domain contained records of patients with known diagnosis. Self-Organizing  Map algorithm's task was to classify the data points, in this case the patients with attribute data, to one of the six clusters (psoriasis, seboreic dermatitis, lichen planus, pityriasis rosea, cronic dermatitis, dan pityriasis rubra pilaris). The algorithm was used to detect the six erythemato-squamous diseases when 33 features defining five disease indications were used. The purpose is to determine an optimum classification scheme for this problem. The present research demonstrated that the features well represent the erythemato-squamous diseases and SOM algorithm's task achieved high classification accuracies. The best accuration for  psoriasis 85,94%, seboreic dermatitis 40,48%, lichen planus 56,25%, and pityriasis rosea 82,61%, with learning rate value were 0,1, 0,2, 0,9, and 0,4
Female Body Anthropometric Variation and Breakthrough in Anthropology for Digital Modelling Badriatut Dini; M. R. Hutagalung; D. S. Perdanakusuma; Phill T Koesbandriati; Agus Windharto
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.y2014i1.401

Abstract

Plastic reconstructive and aesthetic surgery has emerged to meet the challenge of improving body size and shape. Currently, body reconstruction in Indonesia refers to Caucasian parameters which may not be applicable. Moreover, patients cannot comprehend the surgeon’s prediction of the surgical outcome visually making it more difficult for the surgeon to describe the operative result. Reseach Objective is understanding the supernormal body concept in Indonesia, describing variation of normal and supernormal body indexes of Indonesians as a formulation base and to make a 3D digital modeling of normal and supernormal person. These models will be used as guidance for planning and predicting the reconstruction - aesthetic surgery in body contouring and as assisting tool for giving information visually to patients. Reseach method using applied study. Questionnaires were distributed to a hundred male and female adults respondent to obtain the concept of Indonesian normal and supernormal bodies. The Body model are 17-25 years old and then divided into 2 groups, normal and supernormal by expert juries assessment. The data of body index anthropometry were presented in tables, charts, and narration to describe normal and supernormal morphologic variations, then results between the 2 groups were compared statistically by t-test and discriminant test. Anthropometric and photographic data were used for making normal and supernormal 3D digital woman models. Criteria of body attractiveness by questionnaire were bright skin color, tallness, slimness, hour glass body shape, muscular arms, medium sized shoulders, hip, waist, breasts and buttocks, wide chest and slender legs. There were significant differences in body measurement between normal-supernormal and distinguishing parameters between normal -supernormal groups by discriminant test including chest dimension index, waist hip ratio, triceps skinfold and leg length. There were two 3D digital woman models for both normal and supernormal subjects which had measurements approximating the average values of each group.
The Rate of Turbulent Kinetic Energy Dissipation in a Turbulent Boundary layer on a Flat Plate Sutardi Sutardi
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.y2014i1.322

Abstract

The rate of turbulent kinetic energy dissipation (e) is an important parameter in the turbulent flows, such as pipe flows, channel flows, atmospheric turbulence, ocean turbulence, and turbulent boundary layer flows. This study is concerning in the evaluation of the rate of turbulent kinetic energy dissipation in turbulent boundary layers developing on a flat plate. In this study, e is obtained simply from the calculation using Taylor’s frozen hypothesis. The study is performed experimentally using a low speed wind tunnel with a squared test section of 91 x 91 x 540 cm. The maximum attainable freestream velocity is approximately of 15 m/s with freestream turbulence intensity is less than 0.5%. Instantaneous fluid velocity is measured using a hot-wire anemometry system connected to a data acqusition and a personal computer. The experiments are performed at freestream velocities of 2.0 m/sec and 5.5 m/sec corresponding with momentum thickness Reynolds numbers (Rq) of approximately 1000 and 3000, respectively. The results show that maximum value of e is at approximately 1 < y+ < 10 at both Reynolds numbers. The results of e in the smooth-wall flat plate boundary layer are compared to that in the boundary layer on the flat plate modified with a square groove. There is a slight difference between e in the smooth-wall flat plate boundary layer and that in the boundary layer on the flat plate with a square groove.
Crystal Growth of IRMOF-3 (Isoreticular Metal-Organic Frameworks-3) Synthesized using Solvothermal Method Pemta Tia Deka; Ratna Ediati; Didik Prasetyoko
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.y2014i1.416

Abstract

IRMOF-3 crystals have been synthesized using solvothermal method by reacting zinc nitrate hexahydrate with 2-amino-1,4-benzenedicarboxylic acid in N'N-dimethylformamide ( DMF ) at 100 °C for 18, 24, 48, 72, 120 and 144 h to observe crystal growth . The obtained crystals were characterized using X - ray Diffraction ( XRD ) , SEM ( Scanning Electron Microscopy ) and Scanning Electron Microscopy - Energy Dispersive X-ray ( SEM - EDX ). Diffractograms of crystals synthesized at heating times of 24 and 48 hours showed major peaks at 2θ of 6.8; 9.6 and 13.7, which are the characteristic peaks of an IRMOF-3 crystal. The size of IRMOF-3 crystals observed using SEM increased with the increase in heating time up to 48 h, then decreased at heating times of 72, 120 and 144 h. The largest IRMOF-3 crystal is of cube shape with a particle size of 500 µm. The weight of the resulting crystals increased with the increase in heating time, then remained constant after 72 h.

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