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Application of geoelectric method for groundwater exploration from surface (A literature study)

AIP Conference Proceedings 2018年第1期1977卷

作者： Eva Rolia Dwita Sutjiningsih 1Doctoral Program Student CivilEngineering Departement Faculty of Engineering Universitas Indonesia Depok 16424 Indonesia. Lecturer at Universitas Muhammadiyah Metro Lampung Indonesia 2CivilEngineering Departement Faculty of Engineering Universitas Indonesia Depok 16424 Indonesia

Groundwater utilization as a source of fresh water supply for various purposes in discharge area shows an ever to increasing trend, while land use of recharges also changes as development progresses. To meet its needs, many people rely on land-based exploration and exploitation. Groundwater is one of nature’s most valuable and inseparable resources for life on earth. Groundwater exploration requires appropriate and efficient techniques. One commonly used method is the electrical resistivity method since, it is efficient and economical to determine groundwater. Vertical Electrical Sounding (VES) Method measurement of rock resistivity from the surface to determine the subsurface rocked layer [1]. Geoelectric resistivity is one of the variables which is the physical properties of the rock layers below the surface. Rock resistivity data can be used to develop a model of subsurface and stratigraphic structures in terms of electrical properties. Geoelectric resistivity depends on lithology, air content, porosity, and pore ions concentration [2]. Geoelectric method is divided into two parts: Mapping resistivity method as a resistivity method that aims to study horizontal variations of horizontal layer resistivity types and Resistivity sounding method or, the drilling resistivity method that studies the variety of rock resistivity beneath the surface of the earth vertically. Data processing of geoelectric measurement results can be done by standard curve method, 2-Dimensional method (Schlumberger and Wenner), 3-Dimensional Method (Configuration of dipole-dipole, Lee Partition Configuration, Rectangle Line Source, 3 Point Gradient System). Therefore, ambiguity in interpretation can occur and become indispensable for calibrating the geoelectric measurement data with available borehole data to establish the resistivity range of various lithology units. Resistivity data can be used to identify and describe subsurface features such as the presence and type of aquifers, contamina

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Integrated management system to achieve sustainable construction - A conceptual framework

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AIP Conference Proceedings 2018年第1期1977卷

作者： Ringgy Masuin Yusuf Latief T. Yuri Zagloel Leni Sagita 1Doctoral Program of Civil Department Faculty of Engineering University of Indonesia Indonesia 2Professor of Civil Department Faculty of Engineering University of Indonesia Indonesia 3Professor of Industrial Engineering Department Faculty of Engineering University of Indonesia Indonesia 4Lecturer of Industrial Engineering Department Faculty of Engineering University of Indonesia Indonesia

Construction project inevitably consumes resources and generates large amounts of waste, hence the efforts to achieve sustainable construction are required. The integration of multiple management systems, information flow analysis, and optimization of operational processes will reinforce sustainable knowledge (science of sustainability). The absence of the management of consumption of resources and construction waste can be a serious problem for the environment, on the contrary management can generate profits. One of the keys to success in realizing sustainable construction is through the integrated management systems. Integrated management system potentially reduces the construction waste due to construction failure. Previous studies have discussed the suitable management model for sustainable development. Most of these studies are interpreted in the form of regression equations and multivariate form. However, only few discuss about the implementation of integrated management system in achieving sustainable construction. Therefore, this research used structural equation method to reveal the most suitable integrated management system related to sustainable construction.

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The effect of earthquake on architecture geometry with non-parallel system irregularity configuration

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IOP Conference Series: Earth and Environmental Science 2017年第1期99卷

作者： Livian Teddy Gagoek Hardiman Nuroji Sri Tudjono Doctoral Program of Architecture and Urban Diponegoro University Indonesia Departement of Architecture Faculty of Engineering Diponegoro University Indonesia Doctoral Program of Civil Engineering Diponegoro University Indonesia

Indonesia is an area prone to earthquake that may cause casualties and damage to buildings. The fatalities or the injured are not largely caused by the earthquake, but by building collapse. The collapse of the building is resulted from the building behaviour against the earthquake, and it depends on many factors, such as architectural design, geometry configuration of structural elements in horizontal and vertical plans, earthquake zone, geographical location (distance to earthquake center), soil type, material quality, and construction quality. One of the geometry configurations that may lead to the collapse of the building is irregular configuration of non-parallel system. In accordance with FEMA-451B, irregular configuration in non-parallel system is defined to have existed if the vertical lateral force-retaining elements are neither parallel nor symmetric with main orthogonal axes of the earthquake-retaining axis system. Such configuration may lead to torque, diagonal translation and local damage to buildings. It does not mean that non-parallel irregular configuration should not be formed on architectural design; however the designer must know the consequence of earthquake behaviour against buildings with irregular configuration of non-parallel system. The present research has the objective to identify earthquake behaviour in architectural geometry with irregular configuration of non-parallel system. The present research was quantitative with simulation experimental method. It consisted of 5 models, where architectural data and model structure data were inputted and analyzed using the software SAP2000 in order to find out its performance, and ETAB2015 to determine the eccentricity occurred. The output of the software analysis was tabulated, graphed, compared and analyzed with relevant theories. For areas of strong earthquake zones, avoid designing buildings which wholly form irregular configuration of non-parallel system. If it is inevitable to design a building

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Occurrences of Salmonella spp. and Escherichia coli in chicken meat, intestinal contents and rinse water at slaughtering place from traditional market in Surabaya, Indonesia

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IOP Conference Series: Materials Science and engineering 2019年第1期633卷

作者： R Yulistiani D Praseptiangga Supyani Sudibya Doctoral Program of Agricultural Science Graduate School Program of Sebelas Maret University (UNS) Jalan Ir. Sutami 36 A Kentingan 57126 Surakarta Indonesia Department of Food Technology Faculty of Engineering Universitas Pembangunan Nasional Veteran Jawa Timur Jalan Raya Rungkut Madya Gunung Anyar 60294 Surabaya Indonesia Department of Food Science and Technology Faculty of Agriculture Sebelas Maret University (UNS) Jalan Ir. Sutami 36 A Kentingan 57126 Surakarta Indonesia Department of Agrotechnology Faculty of Agriculture Sebelas Maret University (UNS) Jalan Ir. Sutami 36 A Kentingan 57126 Surakarta Indonesia Department of Animal Husbandry Faculty of Agriculture Sebelas Maret University (UNS) Jalan Ir. Sutami 36 A Kentingan 57126 Surakarta Indonesia

The purpose of this study was to compare the presence of Salmonella spp. and Escherichia coli in chicken meat, intestinal contents and rinse water at slaughtering place from traditional markets in Surabaya, Indonesia. A total of 120 samples (chicken meat, intestinal contents and rinse water, each of the 40 samples) were collected from the slaughtering place from traditional markets in Surabaya. The samples were analyzed the presence of Salmonella spp. and Escherichia coli in chicken meat, intestinal contents and rinse water. Isolation and identification Salmonella *** Escherichia coli were carried out according to the conventional culture-based method (ISO 6579:2002). This study showed Salmonella spp. was isolated by 85.00%, 57.50%, 52.50% of chicken meat, intestinal contents and rinse water, respectively. While *** was isolated by 77.50%, 65.00%, 75.00 % of chicken meat, intestinal contents and rinse water, respectively. Prevalence of Salmonella spp. and E. coli in chicken meat is higher than intestinal contents and rinse water. Thus, it is indicated that the contamination of Salmonella spp. and Escherichia coli in chicken meat not only comes from intestinal contents and rinse water.

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Flood control study using 1D/2D numerical model in Cipabuaran Channel, Sabi River Watershed, Tangerang City

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IOP Conference Series: Materials Science and engineering 2019年第4期662卷

作者： V Pratiwi B P Yakti A Rizaldi I R Moe D P Koesrindartono Doctoral Program of Civil Engineering Civil and Environmental Engineering Faculty Institut Teknologi Bandung Jl. Ganesha 10 Bandung Indonesia Civil Engineering Department Computer Sciences and Engineering Faculty Universitas Komputer Indonesia Jl. Dipati Ukur 112-116 Bandung Indonesia Center for Water Resources Development Institute for Research and Community Services Institut Teknologi Bandung Jl. Ganesha 10 Bandung Indonesia Directorate General of Water Resources Ministry of Public Works and Housing Jl. Pattimura No. 20 Kebayoran Baru Jakarta Selatan Indonesia Public Works and Spatial Planning Agency Jl. KS. Tubun No. 96 Tangerang Indonesia

The flood that occurred in Tangerang City still remains an issue that has not been resolved. The flood arose from Bogor through the Cisadane River. Cipabuaran Channel is one of the channels in the Sabi River watershed who often overflows. Sabi River itself is a tributary of the Cisadane River. In this study, the flood control simulation in Cipabuaran Channel was carried out using a 1D-2D numerical model. Simulation is carried out with 4 scenarios based on the design flow of the 10 year return period. For scenario 1, flood control is carried out using retention pond in the downstream of Cipabuaran Channel, scenario 2 is carried out by using two retention ponds in the upstream and downstream of Cipabuaran Channel, scenario 3 using retention ponds in the downstream of Cipabuaran Channel and bypass channel to Cisadane river, and scenario 4 performed by using retention pond in the downstream of Cipabuaran Channel and normalization on the Channel. Simulation results show the effectiveness of flood reduction for each scenario, in scenario 1 flood can be reduced by 9%, scenario 2 flood can be reduced by 32.52%, scenario 3 flood can be reduced by 77.34% and for scenario 4 flood can be reduced by 95%. From these results, it can be concluded that scenario 4 where flood control is carried out using a retention pond in the downstream of Cipabuaran Channel and normalizing the River can reduce flooding significantly.

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Implementation of virtual corporation: the challenge of future business in Indonesia

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IOP Conference Series: Materials Science and engineering 2017年第1期277卷

作者： Dadan Umar Daihani Doctoral Program in Strategy Universitas Trisakti Jakarta Indonesia Magister Program in Industrial Engineering Universitas Trisakti Jakarta. Indonesia

This paper presents a descriptive analysis of the development of virtual organizations in the business. Recently, many commercials activities were carried virtually. Online shops are growing everywhere; furthermore hotel reservations, ticket booking, as well as purchasing process are all done through the cyberspace. In the government, administrative process has migrated to electronic systems such as E-budgeting, E-KTP, E-procurement and online visa application. This era is not excessive if it is said as the era of E-anything. To address the issue, we employed survey based study on APJII survey and other related sources. Furthermore, the data is analysed based on the theory of development of virtual organizations and virtual corporations by using the six social sciences paradigm. This study showed that the Internet users in Indonesia have increased progressively from year to year. Therefore, the e-commerce market in Indonesia is growing rapidly as well. By looking at the growth of Internet users and the reasons for their use, it can not be denied that the internet-based business in Indonesia is a very promising (from the electronic shop, logistics and online transportation (known as online taxi) such as, Gojek, Grab, UBER, etc). One thing that should be prepared is the wise and proper government regulation. The electronic technology-based business activity of course is a necessity, and can't be inhibited its development. However, if the infrastructure such as the regulation and culture of the community are not ready yet, then it can lead to the social conflict such as a conflict between conventional taxi and online taxi players (Gojek, Grab, Uber etc). We hope this paper will open the horizon and our mind of looking at the emergence of new patterns in business.

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Effect of sonication treatment on fibrilating snake fruit (Sallaca) frond fiber

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AIP Conference Proceedings 2018年第1期1931卷

作者： Seno Darmanto Heru S. B. Rochardjo Jamasri Ragil Widyorini 1Doctoral Program of Department of Mechanical and Industrial Engineering Universitas Gadjah Mada Indonesia 4Department of Industrial Engineering Vocation School Universitas Diponegoro Indonesia 2Department of Mechanical and Industrial Engineering Universitas Gadjah Mada Indonesia 3Department of Forest Product Technology Universitas Gadjah Mada Indonesia

Aim of this research is to investigate influence of chemical and sonication treatment on fibrillating and mechanical properties of snake fruit frond fiber. The presence of surface impurities and the large amount of hydroxyl groups in natural fibers make less attractive for polymeric materials reinforcement. Effort to remove the impurities can be done by few treatments that consist of physical, chemical and mechanical treatment. Snake fruit frond bundle fiber were firstly subjected to chemical treatments with alkali solution, steaming at 2 bar and steam explosion at 6 bar by 40 times releasing of steam. Advanced treatment is done by flowing ultrasonic wave at 20 kHz by 90 – 210 watt. The output of fibrillation can reach fiber in range 10 – 25 nm compared with 10.72 µm in diameter for sonication and 6 bar in pressure of steam with 40x of rapidly steam release respectively.

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Sensitivity Analysis with AHP Method: Selection of Foundation Design on Bridge Sei Muara Bulan Anak 2

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Journal of Physics: Conference Series 2018年第1期1028卷

作者： Hendrik Sulistio Mega Waty Muhammad Ikhsan Setiawan Nuning Kurniasih Ansari Saleh Ahmar Department of Civil Engineering Doctoral Program Tarumanagara University Jakarta 11440 Indonesia Department of Civil Engineering Narotama University Surabaya Jawa Timur 60117 Indonesia Faculty of Communication Science Library & Information Science Universitas Padjadjaran Bandung Jawa Barat 45363 Indonesia Department of Statistics Universitas Negeri Makassar Indonesia

The selection of the bridge is fundamental thing to Sei Anak Muara Bulan 2 Bridge Planning. After knowing the results of capacity analysis of land and pile support capacity, ease of implementation, determine the selection of foundation planning decisions. The results of AHP implementation indicate that the aspects of land and pile carrying capacity are the main priority criteria with the amount 61.7% as the reason to determine the choice of bridge foundation and the result of alternative is the foundation of equal to 42,2%

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Numerical simulation on improvement of a Savonius vertical axis water turbine performance to advancing blade side with a circular cylinder diameter variations

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IOP Conference Series: Earth and Environmental Science 2018年第1期200卷

作者： P A Setiawan T Yuwono W A Widodo Student of Doctoral Program Mechanical Engineering Department Sepuluh Nopember Institute of Technology Surabaya 60111 Indonesia Marine Engineering Department Shipbuilding Institute of Polytechnic Surabaya Surabaya 60111 Indonesia Mechanical Engineering Department Sepuluh Nopember Institute of Technology Surabaya 60111 Indonesia Center of Excellence in Automotive Control & System Sepuluh Nopember Institute of Technology Surabaya 60111 Indonesia

The use of fossil fuel will generate particulate gas in the atmosphere and forming the greenhouse effect. One of the ways to reducing greenhouse effect is used renewable energy as hydropower without generating particulate gas impacted in human life. The present study uses hydropower as the renewable energy by using a Savonius turbine. The main objective investigates the performance of Savonius water turbine numerically due to the installation of a circular cylinder beside of the advancing blade with circular cylinder diameter variations. The method used is numerically toward Savonius turbine disturbed a circular cylinder. The numerical simulation using two-dimensional (2D) analysis of Computational Fluid Dynamics (CFD) simulation by using ANSYS 17.0-Fluent and sliding Mesh technique used is to solve the incompressible Unsteady Reynolds Averaged Navier-Stokes (URANS) equations. The turbulence model uses Realizable k-epsilon (RKE) and transport equation uses the finite volume discretization method with the second-order upwind scheme and the SIMPLE algorithm. Firstly, the numerical model has been validated by the published experimental data toward the torque coefficient by using air fluid at Reynolds of 4.32.105. Then the fluid is changed the water fluid at the same Reynolds. The circular cylinder diameter relative to the turbine diameter (ds/D) is varied of 0.1, 0.3, 0.5, 0.7 and 0.9 at X/D of 0.5 and Y/D of 0.7 kept constant with TSR of 0.5, 0.7, 0.9, 1.1 and 1.3. The numerical simulation uses the transient and two dimensional (2D) simulations. The results show that the increase of disturbance diameter (ds/D) will improve the performance of the conventional Savonius turbine and the maximum power coefficient increase about 18.04% at ds/D of 0.7 with TSR of 0.7.

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Thermal instability and kinetics analysis on triacetone triperoxide (TATP)

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IOP Conference Series: Earth and Environmental Science 2018年第3期189卷

作者： Wei Gu Jia-Jia Jiang Jun-Cheng Jiang Laiwang Bin Jiangsu Key Laboratory of Hazardous Chemicals Safety and Control College of Safety Science and Engineering Nanjing Tech University Nanjing 210009 China Doctoral Program Graduate School of Engineering Science and Technology National Yunlin University of Science and Technology (YunTech) 123 University Rd. Sec. 3 Douliou Yunlin 64002 Taiwan ROC

Differential Scanning Calorimetry (DSC), Thermogravimetry(TG) and vent sizing package 2 (VSP2) were performed to understand thermal behavior and decomposition kinetics of triacetone triperoxide (TATP) under non-isothermal and adiabatic conditions, respectively. Then the maximum self-heating rate [(dT/dt)max], maximum pressure rise rate[(dP/dt)max] were acquired. DSC studies revealed a coupling phenomenon of decomposition reaction and phase transition. Based on the DSC data, the thermal decomposition kinetic parameters were worked out and compared through the Friedman and ASTM E698 methods. The results indicated that Heat of decomposition (ΔHd) was extraordinary large even up to 2700 Jg−1 for which recrystallized with methanol merely. The activation energy of which used methanol to recrystallize was 155.5kJ/mol by (ASTM) E-698 methods. By Friedman method Linear regression was able to reach a high enough level when the reaction progress (α) was between 0.1–0.9. The results can be used to calculate the optimal parameters for processing a safer design and establish the database of TATP for loss prevention protocol.

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