scholarly journals ANALYSING THE DRAINAGE SYSTEM USING EPA SWMM 5.1 (STUDY CASE: JABABEKA II INDUSTRIAL, CIKARANG BARU, BEKASI REGENCY)

2020 ◽  
Vol 5 (2) ◽  
pp. 136
Author(s):  
Kezia Kusumaningtyas ◽  
Yunita Ismail
Keyword(s):  
Rainfall Intensity ◽  
Drainage System ◽  
Secondary Data ◽  
Developed Countries ◽  
Runoff Water ◽  
Distribution Method ◽  
Industrial Estate ◽  
Study Case ◽  
Simulation Results ◽  
Precipitation Events

Due to the data in 2030, the urban growth in developed countries is 83% and developing countries is 53%. Jababeka II Industrial Estate as one of the urban industrialization located at Bekasi Regency. In its development, drainage facilities are one thing that must be considered. Because with its function as a channel that carries runoff water to rivers/lakes/reservoirs to avoid flooding. This study aimed to know the existing condition of the drainage system and the water balances in the form of runoff in Jababeka II Industrial Estate by the simulation of SWMM 5.1.  The method of this research used a quantitative method, and the data collection method used secondary data, including the information from the existing drainage system with precipitation events in 12 years (2009-2020) were obtained from the WTP Jababeka Residential, drainage dimension, and masterplan of Jababeka II. In order to calculate rainfall planned used fifth-year return period based, it’s on the city's classification under study. The probability distribution method uses Log-Pearson III with a planned rainfall of 128.22 mm/d and the highest rainfall intensity of 54 mm. Based on the simulation results, it was found that the Jababeka II Industrial Estate contained puddles in several channels. The peak was at the 3rd hour of the simulation, which were 19 channels. It's influenced by the type of soil that is quickly saturated. The simulation of the existing condition at Jababeka II has the highest runoff at the 2<sup>nd</sup> hour of simulation, and floods occurred in 19 channels. It’s affected by the impermeable sub-areas. The water balance result is the amount of precipitation 128.22 mm with the intensity is 54mm due to 5 years forecasting, thus producing the outflow is 128.511 mm. Therefore the number of continuity errors of the surface is -0.227%.

scholarly journals ANALYSIS OF RESIDENTIAL RESERVOIR CAPACITY AT THE MUTIARA PURI HARMONI 2 CIKARANG

ASTONJADRO ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 27
Author(s):  
Mohammad Imamuddin ◽  
Adi Tathak Wahyu Prasetyo
Keyword(s):  
Rainfall Intensity ◽  
Drainage System ◽  
Residential Areas ◽  
Reservoir Capacity ◽  
Reservoir Water ◽  
Distribution Method ◽  
The North ◽  
Concentration Time ◽  
Housing Area ◽  
Calculation Results

<p>Cikarang is one of the areas in the administrative city of Bekasi Regency, which has several flood-prone areas. Every year, several areas of Cikarang often experience flooding, including the North Cikarang area. Precisely in Karanganyar Village, Karang Bahagia Subdistrict, where most of the land has been converted from rice fields to densely populated housing. Over time, Karang Bahagia Subdistrict became familiar with floods and puddles. Mutiara Puri Harmoni 2 Housing is one of the densely populated residential areas in the Karang Bahagia District. From the observation of the drainage system made by Mutiara Puri Harmoni 2 Housing, there is a lot of sedimentation and some of the sections have a lot of narrowing due to increased development in the housing area. For the drainage before it is drained into the nearest river, namely the Gemboro river, the Mutiara Puri Harmoni 2 housing drainage system creates a reservoir as a storage. By analyzing the reservoir section using the rainfall distribution method and the Log Pearson III method, the resulting 2-year rainfall intensity is 74.374 mm/hour with the resulting discharge of 3.339 m3/second. From the calculation results, the reservoir storage is 6057.216 m3/second with a cross section of 62.4 mx 55.62m. Taking into account the reservoir water balance using 17 years of rainfall data, the maximum discharge in February is 18323m3 and the lowest discharge is in August of 3038m3. Therefore, the results of the capacity analysis needed to avoid flooding are to deepen and expand the reservoir and/or add a pump so that the concentration time is not too long.</p>

scholarly journals Identification of liquefaction disaster in Jondul Rawang, Padang City West Sumatra

2020 ◽  
Vol 156 ◽  
pp. 01004
Author(s):  
Utami Dewi Arman ◽  
Rafki Imani ◽  
Afrilda Sari ◽  
Widiawati Purba
Keyword(s):  
Rainfall Intensity ◽  
Pore Water Pressure ◽  
Water Pressure ◽  
Peat Soil ◽  
Drainage System ◽  
Secondary Data ◽  
Soil Mass ◽  
Primary Data ◽  
Intensity Increase ◽  
West Sumatra

Liquefaction is a condition of continuous soil mass deformation at residual stress due to increasing pore water pressure that results in effective stress reduced. This study was conducted to identify the potential hazards of liquefaction in the Jondul Rawang area in Padang City. This study is to observe the soil contour and characteristics. Primary data obtained by observing the soil contour, soil characteristics, and the form of buildings, etc. Whilst, secondary data obtained from the related documents as supporting data. The results concluded that the Jondul Rawang area is potentially liquefaction area where the soil contours and characteristics could be classified as peat soil and lied in the swamps. Furthermore, if the rainfall intensity increase then flooding occurred. Then as consequences, there were many residential houses and other buildings around the area turning into tilted and drowned due to the degradation of soil bearing capacity. Therefore, requiring disaster management efforts against the threat of liquefaction in that area, both in terms of the drainage system due to flooding and overall repairs for the sewerage could work well.

scholarly journals A Review of the Recent Developments of Green Banking in Bangladesh

2021 ◽  
Vol 13 (4) ◽  
pp. 1904
Author(s):  
Fatema Khairunnessa ◽  
Diego A. Vazquez-Brust ◽  
Natalia Yakovleva
Keyword(s):  
Central Bank ◽  
Financial Institutions ◽  
Financial Regulation ◽  
Economic Transition ◽  
Secondary Data ◽  
Developed Countries ◽  
Annual Reports ◽  
Infrastructure Development ◽  
Recent Developments ◽  
The Developed Countries

This paper aims to explore the emergence of ‘Green Banking’ in Bangladesh, with a focus on the role of financial regulation and regulators in greening the financial sector. It also examines the contribution and involvement of banks and non-bank financial institutions in promoting green economic transition. The study is based on the review of secondary data collected from various sources, such as quarterly reports, annual reports, websites of the central bank of Bangladesh, and other commercial banks and non-bank financial institutions as well as various articles, and newspapers reports on green banking in Bangladesh. The collected data is reviewed using descriptive statistics. The research results reveal that the central bank of Bangladesh played a major role in greening the financial system of the country by implementing various green policies and regulatory measures. Although Bangladesh is still far behind the developed countries in terms of environmental performance, the country has made a remarkable progress in initiating and expanding green banking practices, infrastructure development, and accelerating green growth in recent years.

Board demographic diversity, firm performance and strategic change

2014 ◽  
Vol 37 (12) ◽  
pp. 1110-1136 ◽  
Author(s):  
Daniel Kipkirong Tarus ◽  
Federico Aime
Keyword(s):  
Firm Performance ◽  
Fixed Effects ◽  
Strategic Change ◽  
Secondary Data ◽  
Developed Countries ◽  
Outcome Variable ◽  
Demographic Diversity ◽  
Content Type ◽  
Fixed Effects Regression ◽  
High Level

Purpose – The purpose of this study is to examine the effect of boards’ demographic diversity on firms’ strategic change and the interaction effect of firm performance. Design/methodology/approach – This paper used secondary data derived from publicly listed firms in Kenya during 2002-2010 and analyzed the data using fixed effects regression model to test the effect of board demographic and strategic change, while moderated regression analysis was used to test the moderating effect of firm performance. Findings – The results partially supported board demographic diversity–strategic change hypothesis. In particular, results indicate that age diversity produces less strategic change, while functional diversity is associated with greater levels of strategic change. The moderated regression results do not support our general logic that high firm performance enhances board demographic diversity–strategic change relationship. In effect, the results reveal that at high level of firm performance, board demographic diversity produces less strategic change. Originality/value – Despite few studies that have examined board demographic diversity and firm performance, this paper introduces strategic change as an outcome variable. This paper also explores the moderating role of firm performance in board demographic diversity–strategic change relationship, and finally, the study uses Kenyan dataset which in itself is unique because most governance and strategy research uses data from developed countries.

Internationalization of emerging multinationals: the Latin American case

2014 ◽  
Vol 26 (6) ◽  
pp. 588-602 ◽  
Author(s):  
Mauricio Losada-Otálora ◽  
Lourdes Casanova
Keyword(s):  
Latin American ◽  
Global Economy ◽  
Secondary Data ◽  
Developed Countries ◽  
Analytical Framework ◽  
Content Type ◽  
Emerging Multinationals ◽  
Internationalization Strategies ◽  
American Case ◽  
Key Resources

Purpose – The purpose of this paper is to develop an analytical framework that challenges the condescending view of multinationals of emerging countries. In this paper, it is showed that emerging multinational companies (EMNCs) developed valuable resources that leveraged their internationalization strategies. Design/methodology/approach – An exploratory approach was used to investigate the internationalization strategies of EMNCs. A qualitative study was built on secondary data sources, particularly analysis of cases of the internationalization of Latin American companies. Findings – The internationalization strategies deployed by EMNCs are similar to the strategies of traditional multinationals (firms of developed countries). Similarly, EMNCs exploit, acquire or defend their resources in foreign markets. Additionally, the selection of each strategy depends on the availability, transferability and substitutability of the resources involved in the internationalization. Research limitations/implications – The traditional approaches that study the role of resources in the internationalization of the EMNCs have some shortcomings. It is worth conducting additional research including the approach developed here to advance in the comprehension of the behavior of EMNCs. Practical implications – Managers must identify and develop key resources to invest abroad. Additionally, managers need to take into account the characteristics of the resources of their firms to select an adequate strategy abroad. Originality/value – This paper shows that EMNCs are not resource laggards. Consequently, theoretical and empirical evidence is provided to advance the development of comprehensive theories of the internationalization of EMNCs. This paper offers academics and practitioners with a new focus to analyze the internationalization of EMNCs which are recognized as a driving force of the global economy.

Rainfall runoff in soil erosion with simulated rainfall, overland flow and cover

Soil Research ◽  
1983 ◽  
Vol 21 (2) ◽  
pp. 109 ◽  
Author(s):  
MJ Singer ◽  
PH Walker
Keyword(s):  
Soil Erosion ◽  
Soil Loss ◽  
Rainfall Intensity ◽  
Overland Flow ◽  
Podzolic Soil ◽  
Simulated Rainfall ◽  
Rainfall Runoff ◽  
Runoff Water ◽  
Soil Transport ◽  
Raindrop Impact

The 20-100 mm portion of a yellow podzolic soil (Albaqualf) from the Ginninderra Experiment Station (A.C.T.) was used in a rainfall simulator and flume facility to elucidate the interactions between raindrop impact, overland water flow and straw cover as they affect soil erosion. A replicated factorial design compared soil loss in splash and runoff from 50 and 100 mm h-1 rainfall, the equivalent of 100 mm h-1 overland flow, and 50 and 100 mm h-1 rainfall plus the equivalent of 100 mm h-' overland flow, all at 0, 40 and 80% straw cover on a 9% slope. As rainfall intensity increased, soil loss in splash and runoff increased. Within cover levels, the effect of added overland flow was to decrease splash but to increase total soil loss. This is due to an interaction between raindrops and runoff which produces a powerful detaching and transporting mechanism within the flow known as rain-flow transportation. Airsplash is reduced, in part, because of the changes in splash characteristics which accompany changes in depths of runoff water. Rain-flow transportation accounted for at least 64% of soil transport in the experiment and airsplash accounted for no more than 25% of soil transport The effects of rainfall, overland flow and cover treatments, rather than being additive, were found to correlate with a natural log transform of the soil loss data.

scholarly journals Embalagens de vidro pós-consumo no sistema de coleta seletiva: o caso da cidade de Londrina

2020 ◽  
Vol 13 ◽  
pp. 1193-1215
Author(s):  
Lilian Aligleri ◽  
Luiz Antonio Aligleri ◽  
Gabriela Lino Gois
Keyword(s):  
Secondary Data ◽  
Situational Characteristics ◽  
Economic Support ◽  
Local Actors ◽  
Study Case ◽  
Reverse Chain ◽  
Glass Recycling ◽  
The City ◽  
Selective Collection ◽  
Packaging Glass

Purpose:  This article presentes the results of an in-depth and contextualized study on the problems in the commercialization of glass containers sent to the selective collection system of the city of Londrina-PR, Brazil.Design: The methodological strategy was the triangulation of sources of evidence desiring to understand the situational characteristics, as well as the operational and environmental challenges faced by the local actors involved, especially the cooperatives. Quantitative and qualitative study case using primary and secondary data collection from multistakeholders.Findings: The data collected here allow us to conclude that vitreous materials have demonstrated difficult commercialization processes and are among those materials that are economically less interesting for cooperatives, intensifying the high social fragility of cooperates.Practical implications: The search for solutions to environmental and economic problems caused by the high generation of municipal solid waste in Brazil still have strong deficiencies in methodologies and technologies. Social implications:  How the reverse logistics of vitreous packaging is operationalized has increased public financing with this type of material, since the sales price obtained by waste pickers does not corroborate the economic support of cooperative enterprises.Originality/value: This study allows to advance in the explanation and description of the way of structuring the reverse chain of vitreous packaging, especially in medium-sized municipalities in the inland.Keywords: post-consumption; packaging; glass; recycling; selective collection

scholarly journals MENYIKAPI GLOBALISASI HUKUM TANAH DENGAN KEARIFAN LOKAL

2019 ◽  
Vol 10 (2) ◽  
pp. 219
Author(s):  
Rina Rohayu H
Keyword(s):  
Secondary Data ◽  
Developed Countries ◽  
Land Law ◽  
Legal Intervention ◽  
The People ◽  
The Law ◽  
Globalization Of Law ◽  
The Republic ◽  
Customary Land

Land given to and owned by people with rights provided by the UUPA is to be used and utilized. The granting and possession of land with these rights will not be meaningful if its use is limited to land as the surface of the earth. The land also has a significant role in the dynamics of development. According to the 1945 Constitution of the Republic of Indonesia NRI,  "earth and water are natural resources contained therein controlled by the state and used for the greatest prosperity of the people." This research uses a normative juridical approach that is research based on the rules / according to the law because this research focused on the use of document studies and literature or secondary data. The research specification used is descriptive-analytic, which describes the law of the land in the era of globalization based on local wisdom. The results of the study illustrate that the role of the land ruling state, which used for the prosperity of the people, is regulated under Law No. 5 of 1960 concerning Basic Regulations on Agrarian Principles (UUPA).On the other hand, the globalization of law is nothing more than a legal intervention from developed countries towards developing countries in order to adjust their laws globally. One way to address the problem of globalization of land law is to reaffirm local wisdom. In other words, they are upholding the customary provisions related to land. Example: provisions of customary land. Customary land is communal land that is jointly owned and thus does not need to be certified.Keywords: globalization, land law, local wisdomABSTRAKTanah diberikan kepada dan dipunyai oleh orang dengan hak-hak yang disediakan oleh UUPA, adalah untuk digunakan dan dimanfaatkan. Diberikannya dan dipunyainya tanah dengan hak-hak tersebut tidak akan bermakna, jika penggunaannya terbatas hanya pada tanah sebagai permukaan bumi saja. Tanah juga mempunyai peranan yang besar dalam dinamika pembangunan. Undang-undang Dasar 1945 menjelaskan bahwa “Bumi dan air dan kekayaan alam yang terkandung didalamnya dikuasai oleh negara dan dipergunakan untuk sebesar-besar kemakmuran rakyat.” Penelitian ini menggunakan pendekatan yuridis normatif yaitu penelitian yang didasarkan kepada kaidah-kaidah/menurut hukum, oleh karena penelitian ini dititik-beratkan pada penggunaan studi dokumen dan bahan pustaka atau data sekunder. Spesifikasi penelitian yang digunakan adalah deskriptif analitis yang menggambarkan tentang hukum tanah di era globalisasi berdasarkan kearifan lokal. Hasil penelitian menggambarkan bahwa peran negara penguasa tanah yang digunakan untuk kemakmuran masyarakat diatur berdasarkan Undang-undang No. 5 tahun 1960 tentang Peraturan Dasar Pokok-Pokok Agraria (UUPA). Disisi lain, globalisasi hukum tak lebih sebagai intervensi hukum dari negara maju terhadap negara berkembang agar menyesuaikan hukumnya secara global. Salah satu cara menyikapi persoalan globalisasi hukum tanah ini adalah dengan menegaskan kembali kearifan lokal. Dengan kata lain, menegakkan kembali ketentuan-ketentuan adat terkait dengan tanah. Misalnya ketentuan tanah ulayat. Tanah ulayat merupakan tanah komunal milik bersama, dengan demikian tidak perlu disertifikatkan.

scholarly journals Algoritma Elephant Herding Optimization: Permasalahan Multiple Constraints Knapsack 0-1

2018 ◽  
Vol 18 (1) ◽  
pp. 13
Author(s):  
Yulia Dewi Regita ◽  
Kiswara Agung Santoso ◽  
Ahmad Kamsyakawuni
Keyword(s):  
Knapsack Problem ◽  
Simplex Method ◽  
Optimization Problems ◽  
Optimal Solution ◽  
Secondary Data ◽  
Multiple Constraints ◽  
Microsoft Excel ◽  
Storage Media ◽  
Simulation Results ◽  
Selection Of

Optimization problems are often found in everyday life, such as when determining goods to be a limited storage media. This causes the need for the selection of goods in order to obtain profits with the requirements met. This problem in mathematics is usually called a knapsack. Knapsack problem itself has several variations, in this study knapsack type used is multiple constraints knapsack 0-1 which is solved using the Elephant Herding Optimization (EHO) algorithm. The aim of this study is to obtain an optimal solution and study the effectiveness of the algorithm comparing it to the Simplex method in Microsoft Excel. This study uses two data, consisting of primary and secondary data. Based on the results of parameter testing, the proven parameters are nClan, nCi,α,β and MaxGen have a significant effect. The final simulation results have also shown a comparison of the EHO algorithm with the Simplex method having a very small percentage deviation. This shows that the EHO algorithm is effective for completing optimization multiple constraints knapsack 0-1. Keywords: EHO Algorithm, Multiple Constraints Knapsack 0-1 Problem.

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