scholarly journals Factors impacting community’s prioritization towards the benefits of Sustainable Urban Drainage Systems: A case study of Nhieu Loc – Thi Nghe sub-basin, Ho Chi Minh City

2020 ◽  
Vol 4 (4) ◽  
pp. First
Author(s):  
Nguyen Hoang My Lan ◽  
Ho Huu Loc ◽  
Phan Dinh Bich Van ◽  
Vo Le Phu ◽  
Le Van Trung
Keyword(s):  
Statistical Tests ◽  
Drainage System ◽  
Impact Factors ◽  
Urban Drainage ◽  
Run Off ◽  
Spss Software ◽  
The Impact ◽  
Priority Levels ◽  
Data Processing Methods

Sustainable Urban Drainage System (SUDS) includes various drainage techniques designed to reduce the run-off flow, improve the water quality, and provide amenity or landscape features. However, selecting the appropriate SUDS technique depends on not only the technical characteristics but also the community's perception and preference. Therefore, this study aims to determine the impact factors on the probability of households' prioritization towards SUDS benefits in the context of Nhieu Loc - Thi Nghe sub-basin, including the benefits of flood reduction, environmental enhancement, and landscape improvement. Data processing methods used in this study consist of statistical tests and ordinal regression using SPSS software. The regression results show that the overall accurate prediction rate for the 3 priority levels of SUDS benefits ranges from 50% to 70%. Factors that statistically significantly influence the priority include household income, knowledge of SUDS, frequency of flooding, depth of flooding, the distance to the nearest park, the distance to the nearest water body, and the distance to the nearest flooded location. In particular, the proximity to the nearest park affects the priority choice for all SUDS benefits with the principle that households near the park will probably choose higher priority to SUDS benefits than those living further.

scholarly journals Exploring Factors Influencing Scenarios Evolution of Waste NIMBY Crisis: Analysis of Typical Cases in China

2021 ◽  
Vol 18 (4) ◽  
pp. 2006
Author(s):  
Ling He ◽  
Qing Yang ◽  
Xingxing Liu ◽  
Lingmei Fu ◽  
Jinmei Wang
Keyword(s):  
Network Theory ◽  
Development Process ◽  
Dynamic Bayesian Network ◽  
Impact Factors ◽  
Social Stability ◽  
Ground Theory ◽  
Evolution Path ◽  
Dynamic Scenario ◽  
The Impact

As the impact factors of the waste Not-In-My-Back Yard (NIMBY) crisis are complex, and the scenario evolution path of it is diverse. Once the crisis is not handled properly, it will bring adverse effects on the construction of waste NIMBY facilities, economic development and social stability. Consequently, based on ground theory, this paper takes the waste NIMBY crisis in China from 2006 to 2019 as typical cases, through coding analysis, scenario evolution factors of waste NIMBY crisis are established. Furtherly, three key scenarios were obtained, namely, external situation (E), situation state (S), emergency management (M), what is more, scenario evolution law of waste NIMBY crisis is revealed. Then, the dynamic Bayesian network theory is used to construct the dynamic scenario evolution network of waste NIMBY crisis. Finally, based on the above models, Xiantao waste NIMBY crisis is taken as a case study, and the dynamic process of scenario evolution network is visually displayed by using Netica. The simulation results show that the scenario evolution network of Xiantao waste NIMBY crisis is basically consistent with the actual incident development process, which confirms the effectiveness and feasibility of the model.

scholarly journals Corrugated Galvanised Iron Sheet as an Alternative to Conventional Roofing Materials “A case study from Sakteng Wildlife Sanctuary, Bhutan”

2018 ◽  
Vol 6 (01) ◽  
Author(s):  
Sonam Tobgay ◽  
Kumbu Dorji ◽  
Norbu Yangdon
Keyword(s):  
Habitat Management ◽  
Positive Impact ◽  
Natural Habitat ◽  
Drainage System ◽  
Development Program ◽  
Wildlife Sanctuary ◽  
Run Off ◽  
Community Pressure ◽  
The Impact ◽  
Roofing Materials

Corrugated galvanized iron (CGI) sheet as an alternative to conventional roofing material was initiated under the integrated conservation development program (ICDP) of Sakteng Wildlife Sanctuary in the year 2004. The program was aimed at reducing community pressure on natural resources to enhance conservation of biodiversity and keystone fauna and flora species through protection of wild habitat. It has benefited 628 inhabitants of Merak and Sakteng which were identified as the least developed among 15 Gewogs (Blocks) under Trashigang Dzongkhag (District). Data were collected through semi structured questionnaires to study the impact of the program to policy and natural habitat management. Amongst the two types of conventional roofing materials available in the locality, Shingles (79%) were in extensive use in comparison to Bamboo mat (21%) attributing to its durability. However, people prefer to use CGI sheet (100%) roofing which is economical, durable and effective in comparison to Shingle and Bamboo mat roofing, where incidences of water seepage to the room is frequent and requires replacing after 5.6 and 1.7 years respectively incurring higher maintenance costs. Replacing conventional roofing with CGI sheet has a long-term positive impact to conservation of forest and wild habitat. It is estimated that under ideal conditions approximately 5521 healthy matured Fir trees (>4'1''girth) and 1.68 million Bamboos were saved from felling since the initial supply of CGI sheet. However, effective roofing has led to the construction of the illegal permanent concrete huts in the Tsamdro (pastureland) and changes in the architectural designs of their native houses. The need of proper drainage system was also observed as important to reduce the gully erosion from CGI sheet roof run-off.

Examining the impact factors of the water environment using the extended STIRPAT model: A Case Study in Sichuan

2020 ◽  
Vol 27 (12) ◽  
pp. 12942-12952
Author(s):  
Xuedong Liang ◽  
Qunxi Gong ◽  
Haotian Zheng ◽  
Jing Xu
Keyword(s):  
Water Environment ◽  
Impact Factors ◽  
Stirpat Model ◽  
The Impact

scholarly journals Cash Management: A Shift in Payment Pattern of Indian Buyers during Covid 19

2020 ◽  
Vol 11 (2) ◽  
Author(s):  
Vandana Dhingra
Keyword(s):  
Statistical Tests ◽  
Credit Cards ◽  
Cash Management ◽  
Face To Face ◽  
Online Transactions ◽  
Payment Methods ◽  
Online Payment ◽  
Cash Payment ◽  
Spss Software ◽  
The Impact

Cash Management is always one of the cherished objectives of Planners & Policymakers not only in India but all over the world. The current Covid 19 crisis is the root for a shift in the Alternative payment methods. The usage of non-cash payment methods, such as e-wallets, online transactions using e-banking, debit and credit cards will increase extensively due to the impossibility of doing face to face transactions. People are forced to find alternative ways of shopping in the wake of Coronavirus crisis, and hence there will be a shift in the pattern of purchase (from real shopping to virtual/online shopping) and online payment methods. Not only this, certain payments like mobile recharge, electricity and water bills, municipal taxes, etc. are to be made online. People who were reluctant or slow in adapting to online payment methods have no choice but to adopt the non-traditional payment alternatives (m-wallets, Paytm, NEFT, RTGS, IMPS, etc). The Indian Income Tax act also encourages noncash payments by the customers through Section 44AD, Section 40A(3), to name a few. The paper examines the impact of Covid 19 on the payment pattern of Indian buyers by comparing the two scenarios 1. Before Covid 19, and 2. During Covid 19. The RBI statistic of payment methods from November 2019 to May 2019. To extrac the results, statistical tests like Paired t-test have been used with the help of SPSS software. The results indicate that covid 19 has a vital impact on non-cash payment methods.

scholarly journals Modelling Outstanding Claims with Mixed Compound Processes in Insurance

2019 ◽  
Vol 12 (3) ◽  
pp. 123
Author(s):  
Gian Paolo Clemente ◽  
Nino Savelli ◽  
Diego Zappa
Keyword(s):  
Solvency Ii ◽  
Capital Requirement ◽  
General Insurance ◽  
Run Off ◽  
Mixed Poisson Process ◽  
Mixed Compound ◽  
Future Loss ◽  
Reserve Capital ◽  
The Impact

In general insurance, measuring the uncertainty of future loss payments and estimating the claims reserve are primary goals of actuaries. To deal with these tricky tasks, a broad literature is available on deterministic and stochastic approaches, most of which aims at straightforwardly modelling the overall claims reserve. In this paper by an extended, very general and reproducible case-study, we analyze the reserving process by attributing to each cell of the lower part of the run-off triangle a Compound mixed Poisson Process, calibrated upon both the numbers of claims and future average costs and considering as well the dependence among incremental claims. We provide analytically the moments of both incremental payments and the total reserve. Furthermore, we accordingly consider the probability distribution of the claims reserve, which is necessary for the assessment of the Risk Reserve capital requirement in a Solvency II framework. To test the impact of the model under different scenarios, insurers and lines of business, the case study is thoroughly analyzed by exploiting the Fisher-Lange average cost method.

scholarly journals Low Impact Development (LID) as an effort to achieve a sustainable urban drainage system (SUDS). Case Study: Left Side Of Garang River Segment VI Semarang

2019 ◽  
Vol 125 ◽  
pp. 07017
Author(s):  
Anik Sarminingsih ◽  
Ganjar Samudro ◽  
Aisyatul Mas’adah
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Low Impact Development ◽  
Drainage System ◽  
Total Coliform ◽  
Urban Drainage ◽  
Raw Water ◽  
Industrial Estates ◽  
Standard Quality

The Garang River functions as a flood controller and a source of raw water for drinking water. This river is divided into seven segments, and in the downstream segment VI there is intake of raw water for drinking water. The land use is dominated by built-in land, in the form of dense settlements and industrial estates. This study aims to evaluate the condition of the drainage system, both in terms of runoff and water quality, and apply the concept of LID to achieve a sustainable drainage system. The method used is the SWMM. Evaluations were carried out in three outlets. In existing conditions, channel capacity in general is still sufficient, while water quality does not meet effluent standard quality for observed parameters including TSS, BOD, COD, oil & fat parameters and Total coliform. The LID concept that are suitable are Bio retention cell, Permeable Pavement and Rooftop disconnection.The use of this type of LID is significant enough to reduce runoff by 77% at outlet 1, 98% at outlet 2 and 73% at outlet 3 and decrease in some parameters of water quality by 77% to 100%.

scholarly journals Integrated framework for assessing climate change impact on extreme rainfall and the urban drainage system

2019 ◽  
Vol 51 (1) ◽  
pp. 77-89 ◽  
Author(s):  
Wei Lu ◽  
Xiaosheng Qin
Keyword(s):  
Climate Change ◽  
Climate Change Impact ◽  
Drainage System ◽  
Extreme Rainfall ◽  
Urban Drainage ◽  
Stochastic Weather Generator ◽  
Urban Drainage System ◽  
Integrated Framework ◽  
Change Impact ◽  
The Impact

Abstract Urban areas are becoming increasingly vulnerable to extreme storms and flash floods, which could be more damaging under climate change. This study presented an integrated framework for assessing climate change impact on extreme rainfall and urban drainage systems by incorporating a number of statistical and modelling techniques. Starting from synthetic future climate data generated by the stochastic weather generator, the simple scaling method and the Huff rainfall design were adopted for rainfall disaggregation and rainfall design. After having obtained 3-min level designed rainfall information, the urban hydrological model (i.e., Storm Water Management Model) was used to carry out the runoff analysis. A case study in a tropical city was used to demonstrate the proposed framework. Particularly, the impact of selecting different general circulation models and Huff distributions on future 1-h extreme rainfall and the performance of the urban drainage system were investigated. It was revealed that the proposed framework is flexible and easy to implement in generating temporally high-resolution rainfall data under climate model projections and offers a parsimonious way of assessing urban flood risks considering the uncertainty arising from climate change model projections, downscaling and rainfall design.

Will New Blood in the Leadership Produce New Blood on the Battlefield? The Impact of Regime Changes on Middle East Military Rivalries

2004 ◽  
Vol 58 (4) ◽  
pp. 612-635 ◽  
Author(s):  
John A. Tures
Keyword(s):  
Cold War ◽  
Middle East ◽  
International Conflict ◽  
Statistical Tests ◽  
Time Frame ◽  
Regime Changes ◽  
History Of ◽  
The Cold War ◽  
The Impact

The Middle East has witnessed a recent spate of alterations in rulers and regimes. These new leaders are coming to power in countries having a history of international conflict with other states in the region. Will the change in government exacerbate interstate crises, producing disputes and wars? Or will the nascent leadership steer their countries to peace, choosing instead to focus on an internal consolidation of power? To answer this question, this article examines the theories of foreign policy behavior of new leaders. It discusses the results of a quantitative analysis of an earlier time frame: the initial years of the Cold War. The article then conducts a series of case study analyses of contemporary times to determine if the theory and prior statistical tests remain valid. The results show that new administrations are more likely to target rivals with a threat, display, or limited use of force. Such incoming leaders, however, seem reluctant to drag their countries into a full-scale war. These findings hold for a variety of countries in a number of different contexts. Such results are relevant for Middle East scholars, conflict mediators, as well as American foreign policymakers who seem to have adopted a taste for regime change in the region.

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