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All Journal Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Makara Journal of Technology
Soepandji, Budi Susilo
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Religion Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Government and Private Sector Collaboration in Handling the Covid-19 Pandemic in Indonesia Sjamsoeddin, Sjafrie; Yoesgiantoro, Purnomo; Saragih, Herlina Juni Risma; Soepandji, Budi Susilo
Budapest International Research and Critics Institute-Journal (BIRCI-Journal) Vol 5, No 4 (2022): Budapest International Research and Critics Institute November
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birci.v5i4.7104

Abstract

The COVID-19 pandemic in 2021 still has not shown a significant decline. Even the President of the Republic of Indonesia stated that COVID-19 is factually still occurring by issuing Presidential Decree No. 24 of 2021 concerning Determination of the Factual Status of the Corona Virus Disease 2019 (COVID-19) Pandemic in Indonesia. Policy measures and cooperation are needed to face the ongoing pandemic's challenges, especially in the economic, social, and resource fields. This also means that collaboration between the government and the private sector is essential in handling the COVID-19 pandemic in Indonesia. In this collaboration, there are supporting factors and inhibiting factors. Supporting factors include shared motivation, leadership, and institutional procedures or provisions. Meanwhile, the inhibiting factors include policies issued by the government and the private sector, whose business and economic factors are predominantly affected by COVID-19. Government and private sector collaboration in handling COVID-19 can be carried out with several approaches: health security capacity, availability of health services, response management, PentaHelix and vaccination, promotive and preventive efforts, response actions, detective actions, and preventive actions.
Modeling Soil Lateral Deformation Due to Water Film using Smoothed Particle Hydrodynamics Bahsan, Erly; Soepandji, Budi Susilo; Rahayu, Wiwik; Marthanty, R.R. Dwinanti R.; Ontowirjo, Budianto
Makara Journal of Technology Vol. 28, No. 2
Publisher : UI Scholars Hub

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Abstract

In geotechnical engineering, large deformation in soil materials is rarely simulated using numerical methods, particularly the finite element method and finite difference method, because they experience difficulties in representing the postfailure soil behavior. As an alternative to these methods, the smoothed particle hydrodynamics (SPH) method has recently been adopted to represent soil behavior. The SPH method is a Lagrangian, mesh-free numerical method in which the materials are modeled as a set of particles. In this method, soil behavior can be represented via the Drucker–Prager elasto–plastic failure criterion. Thus, this method can be used to simulate postfailure soil behavior and large deformation in soil materials. This study attempts to analyze large deformation of soil due to an extremely gentle slope and a thin water layer (referred to as the water film). The model is simulated using a C++ platform called PersianSPH. The results demonstrate that lateral deformation can occur in such a geometry because of the effective stress changes during liquefaction.
Co-Authors Bahsan, Erly Marthanty, R.R. Dwinanti R. Ontowirjo, Budianto Saragih, Herlina Juni Risma Sjamsoeddin, Sjafrie Wiwik Rahayu Yoesgiantoro, Purnomo