Ministry of Public Works

About: Ministry of Public Works is a based out in . It is known for research contribution in the topics: Water resources & Flood myth. The organization has 446 authors who have published 439 publications receiving 10938 citations.

A Challenge of Mutual Knowledge Development in Implementation of the Yonmenkaigi System for Sand Mining Management in Local Community of Merapi Volcano

Abstract: This paper introduces a challenge of mutual knowledge development in the implementation of the Yonmnekaigi system as a participatory workshop method to improve sand mining management of local communities in Merapi Volcano of Indonesia. It was applied for the formulation of action plans on community-based sand mining management in Pilot Project implemented by Gadjah Mada University in Yogyakarta, Indonesia under Urgent Disaster Reduction Project for Mt. Merapi, Progo River Basin (JICA Loan No.: IP-524) executed by Directorate General of Water Resources, Ministry of Public Works, Indonesia. A participatory workshop method called the Yonmenkaigi system method, originally developed in a local community in Japan, has the following main steps: carrying out SWOT analysis, completing a Yonmenkaigi Chart, debating between groups, and presenting the group action plan. A case study carried out in the Kemiren village, Yogyakarta, Indonesia in August 2009, demonstrates how residents who are interested in disaster mitigation and management in a local community can collaboratively develop an implementable action plan for Sand Mining Management of local community. Based on the above case study, this paper categorically itemizes and formalizes two types of knowledge development needed for introducing the Yonmenkaigi system method to the cases in Indonesia. The first type of knowledge development is that type of knowledge which is generated as an outcome through the process of implementing a whole set of the Yonmenkaigi system. The second type is shown to be modeled as mutual knowledge development between “seed knowledge providers” and “custom knowledge providers”. Illustrations are made from the field work results and the two types of knowledge development have been speciÞ cally described and analyzed.

Site Characterization Using Microtremor Array and Seismic Hazard Assessment for Jakarta, Indonesia

Abstract: The authors gratefully acknowledge the Research Institute for Housing and Human Settlement (RIHHS), Ministry of Public Works and Housing, the Republic of Indonesia, the seismic microzonation study team and the Research Centre for Disaster Mitigation (PPMB), Institut Teknologi Bandung (ITB), for supporting data and assistance during this study.

Design and management of a sewage pit through discrete-event simulation

Abstract: This paper reports two discrete-event simulation studies to model the activities of a residential waste treatment facility and prepare it to accept additional wastewaters through tanker trucks. The first simulation study models the wastewater treatment facility to ensure its ability to handle the planned added capacity arriving through the pit, while the second study simulates various managerial strategies to handle the traffic, testing, and unload procedures of tanker trucks arriving at the facility. The simulation models were statistically validated and the outcomes of the study were implemented in reality. The wastewater treatment facility extension suggested by this study was implemented and launched in mid 2008 to accept residential wastewater tanker trucks. This has saved the environment over 6,000 m3 daily from being dumped into the open unlined terrestrial landfills. Simulation proved to be an excellent tool in the facility planning effort, as it ensured smooth flow lines of tanker truck load discharge and the best utilization of facilities on site.

Three-dimensional structure of Vp in the upper crust of the Sakarya Basin, NW Turkey

Abstract: In this study, our aim is to obtain a 3-D velocity model of the Sakarya Basin and its surrounding. First of all, the various velocity models conducted previously are used as initial models and then a new model representing the region exactly is calculated. In selection of the earthquakes with particular criteria, the high-quality events are chosen to obtain reliable results. A total of 311 aftershocks located between Sakarya and Bolu provinces of the North Anatolian Fault Zone (NAFZ) are selected at the end of this process and a one-dimensional P-wave velocity model is calculated. The earthquakes have been selected among the 3000 aftershocks of the 1999 Izmit earthquake recorded by the digital three-component seismometers that deployed in the section of the NAFZ remaining between Sakarya and Bolu provinces. The one-dimensional P-wave velocity model obtained in this study is used as a reference model in the tomographic inversion process to calculate the three-dimensional velocity structure of the region. Then, several three-dimensional cross sections have been generated. When those sections are examined, it is observed that the aftershocks are concentrated in the layers down to 16 km in depth. These events provide more accurate and reliable results. When 1-D velocity structure has been analyzed, it is observed that the deeper velocity structures of the initial model given the values remain constant. At this point, the P-wave velocity values in the layers starting from 4.21 to 7.23 km/s increase steadily and the velocity structure of the region is brought out as three dimensional, and its compatibility with its geology and tectonics is evaluated. By those results, while the different velocity anomalies are determined in the study areas, in particular presence of the low velocity zones are clearly seen in segments of the NAF. In this case, the region is said to be quite compatible with the geology and tectonics.