scholarly journals Comparative Study of Flood Calculation Approaches, a Case Study of East Rapti River Basin, Nepal

2014 ◽  
Vol 15 ◽  
pp. 60-64 ◽  
Author(s):  
Krishna Prasad Rijal
Keyword(s):  
Hydraulic Structures ◽  
Data Sets ◽  
Ungauged Basins ◽  
Flood Prediction ◽  
Ungauged Basin ◽  
Flood Volume ◽  
High Flood ◽  
Radical Shift ◽  
Shed Light

Various approaches to high flood calculation have been used to inform the design of hydraulic structures and flood protection works in Nepal. To assess potential flood volumes, a variety of methods and calculations are employed and the highest figure is adopted as correct so as to err on the side of safety. This approach, while safe, can result in excessively uneconomic design. As well, this approach erodes the designer’s confidence in the process to determine the potential flood volume and perpetuates such sub-optimal approaches. Through the case study of East Rapti River, this paper tries to shed light on various ungauged basin approaches of flood prediction currently in practice. It also compares the relative performance of those approaches using statistical methods and observed data. From the study, Jha PCJ method (1996) yielded a comparable result with the gauged basin methods. A remarkably notable fact obtained is that all the ungauged basin methods except rational method underestimated the flood discharge as compared to that obtained from the frequency analysis based on measured data sets. Overall, our study concludes that flood forecasting on ungauged basins cannot be recommended because a number of assumptions and personal judgments influence each of the prediction methods. Therefore, a more radical shift to basin specific intensive research is desirableDOI: http://dx.doi.org/10.3126/hn.v15i0.11296HYDRO Nepal JournalJournal of Water, Energy and EnvironmentVolume: 15, 2014, JulyPage: 60-64

scholarly journals Flood Prediction in Ungauged Basins by Physical-Based TOPKAPI Model

2019 ◽  
Vol 2019 ◽  
pp. 1-16
Author(s):  
Xiangyi Kong ◽  
Zhijia Li ◽  
Zhiyu Liu
Keyword(s):  
Forecast Accuracy ◽  
Distributed Model ◽  
Ungauged Basins ◽  
Soil Thickness ◽  
Flood Prediction ◽  
Discharge Data ◽  
Ungauged Basin ◽  
Saturated Water Content ◽  
Glue Method ◽  
Sensitive Parameters

Scarce historical flood data in ungauged basins make it difficult to establish empirical and conceptual model forecast in these areas. The physical-based distributed model TOPKAPI is introduced for flood prediction in an ungauged basin by parameter transplant. Five main parameters are selected, and the sensitivity is analyzed by the GLUE method. The Xixian basin and Huangchuan basin in the upper Huaihe basin in China are chosen as study areas. The Xixian basin is regarded as a gauged basin for parameter calibration, and the Huangchuan basin is regarded as an ungauged basin by ignoring the historical discharge data. The model is calibrated in gauged Xixian basin, and then parameters are directly transplanted to adjacent “ungauged” Huangchuan basin to simulate flood forecast in an ungauged basin. The sensitivity analysis shows that soil thickness and soil saturated water content are the most sensitive parameters, and the Manning coefficient of main channel with high Strahler also significantly affects forecast results. According to the simulation results, the TOPKAPI model exhibits good performance in building and the prediction of the ungauged basin, in which the qualified rate of volume and peaks reaches 69.23%, and the average NSE criterion is over 0.67, which is acceptable forecast accuracy and has positive implication for the hydrological forecasting research.

scholarly journals Segment-Based Approach for Assessing Hazard Risk of Coastal Highways in Hawai‘i

2019 ◽  
Vol 2673 (1) ◽  
pp. 83-91 ◽  
Author(s):  
Harrison Togia ◽  
Oceana P. Francis ◽  
Karl Kim ◽  
Guohui Zhang
Keyword(s):  
Qualitative Method ◽  
Data Sets ◽  
Regional Environment ◽  
The Road ◽  
Hazard Exposure ◽  
Multiple Indicators ◽  
System Data ◽  
Rural Highway ◽  
Geographic Information System Data

Hazards to roadways and travelers can be drastically different because hazards are largely dependent on the regional environment and climate. This paper describes the development of a qualitative method for assessing infrastructure importance and hazard exposure for rural highway segments in Hawai‘i under different conditions. Multiple indicators of roadway importance are considered, including traffic volume, population served, accessibility, connectivity, reliability, land use, and roadway connection to critical infrastructures, such as hospitals and police stations. The method of evaluating roadway hazards and importance can be tailored to fit different regional hazard scenarios. It assimilates data from diverse sources to estimate risks of disruption. A case study for Highway HI83 in Hawai‘i, which is exposed to multiple hazards, is conducted. Weakening of the road by coastal erosion, inundation from sea level rise, and rockfall hazards require adaptation solutions. By analyzing the risk of disruption to highway segments, adaptation approaches can be prioritized. Using readily available geographic information system data sets for the exposure and impacts of potential hazards, this method could be adapted not only for emergency management but also for planning, design, and engineering of resilient highways.

scholarly journals Participative decision making in schools in individualist and collectivist cultures: The micro-politics behind distributed leadership

2021 ◽  
pp. 174114322110013
Author(s):  
Mor Hodaya Or ◽  
Izhak Berkovich
Keyword(s):  
Decision Making ◽  
Distributed Leadership ◽  
Multiple Case Study ◽  
Extreme Case ◽  
Public High Schools ◽  
Case Study Method ◽  
Case Selection ◽  
Multiple Case ◽  
Shed Light

Despite the popularity of distributed leadership theory, the investigation of the micro-political aspects of such models have scarcely been explored, and insights on the cultural variety of distributed practices in schools are limited. The present study aimed to explore what micro-political aspects emerge in participative decision making in collectivist and individualist cultures. To this end, a multiple case study method was adopted, focusing on four Israeli public high schools. Schools were chosen to represent an ‘extreme’ case selection rationale: two non-religious urban schools representing individualist cases, and two communal schools in religious kibbutzim representing communal schools. The analysis shed light on three micro-political points of comparison between the prototypes of participative decision making in collectivist and individualist cultures related to control, actors, and stage crafting. The findings and implications are discussed.

scholarly journals Towards DC Energy Efficient Homes

2021 ◽  
Vol 11 (13) ◽  
pp. 6005
Author(s):  
Daniel Villanueva ◽  
Moisés Cordeiro-Costas ◽  
Andrés E. Feijóo-Lorenzo ◽  
Antonio Fernández-Otero ◽  
Edelmiro Miguez-García
Keyword(s):  
Energy Efficiency ◽  
Electric Vehicles ◽  
Energy Efficient ◽  
Electricity Consumption ◽  
Real Data ◽  
Mean Values ◽  
Led Lighting ◽  
Shed Light

The aim of this paper is to shed light on the question regarding whether the integration of an electric battery as a part of a domestic installation may increase its energy efficiency in comparison with a conventional case. When a battery is included in such an installation, two types of electrical conversion must be considered, i.e., AC/DC and DC/AC, and hence the corresponding losses due to these converters must not be forgotten when performing the analysis. The efficiency of the whole system can be increased if one of the mentioned converters is avoided or simply when its dimensioning is reduced. Possible ways to achieve this goal can be: to use electric vehicles as DC suppliers, the use of as many DC home devices as possible, and LED lighting or charging devices based on renewables. With all this in mind, several scenarios are proposed here in order to have a look at all possibilities concerning AC and DC powering. With the aim of checking these scenarios using real data, a case study is analyzed by operating with electricity consumption mean values.

scholarly journals Queue Length Forecasting in Complex Manufacturing Job Shops

Forecasting ◽  
2021 ◽  
Vol 3 (2) ◽  
pp. 322-338
Author(s):  
Marvin Carl May ◽  
Alexander Albers ◽  
Marc David Fischer ◽  
Florian Mayerhofer ◽  
Louis Schäfer ◽  
...  
Keyword(s):  
Operations Management ◽  
Queue Length ◽  
Manufacturing Systems ◽  
Production Control ◽  
Data Sets ◽  
Job Shops ◽  
Static Data ◽  
Queue Lengths ◽  
Operational Excellence

Currently, manufacturing is characterized by increasing complexity both on the technical and organizational levels. Thus, more complex and intelligent production control methods are developed in order to remain competitive and achieve operational excellence. Operations management described early on the influence among target metrics, such as queuing times, queue length, and production speed. However, accurate predictions of queue lengths have long been overlooked as a means to better understanding manufacturing systems. In order to provide queue length forecasts, this paper introduced a methodology to identify queue lengths in retrospect based on transitional data, as well as a comparison of easy-to-deploy machine learning-based queue forecasting models. Forecasting, based on static data sets, as well as time series models can be shown to be successfully applied in an exemplary semiconductor case study. The main findings concluded that accurate queue length prediction, even with minimal available data, is feasible by applying a variety of techniques, which can enable further research and predictions.

scholarly journals Becoming a Crorepati: From Glocal TV Game to Grobal Fiction

2020 ◽  
Vol 73 (3) ◽  
pp. 497-520
Author(s):  
Nicola Pozza
Keyword(s):  
Effective Means ◽  
The Novel ◽  
Cultural Products ◽  
Slumdog Millionaire ◽  
Interactive Nature ◽  
Tv Show ◽  
Shed Light ◽  
The Way

AbstractNumerous studies have dealt with the process of globalization and its various cultural products. Three such cultural products illustrate this process: Vikas Swarup’s novel Q and A (2005), the TV quiz show Kaun banega crorepati? (Who Wants to Be a Millionaire?), and Danny Boyle’s film Slumdog Millionaire (2008). The novel, the TV show and the film have so far been studied separately. Juxtaposing and comparing Q and A, Kaun banega crorepati, and Slumdog Millionaire provides an effective means to shed light on the dialogic and interactive nature of the process of globalization. It is argued through this case study that an analysis of their place of production, language and content, helps clarify the derivative concepts of “glocalization” and “grobalization” with regard to the way(s) contemporary cultural products respond to globalization.

scholarly journals Education for Social Change: The Case of Teacher Education in Wales

2021 ◽  
Vol 13 (15) ◽  
pp. 8574
Author(s):  
Rebecca Weicht ◽  
Svanborg R. Jónsdóttir
Keyword(s):  
Teacher Education ◽  
Social Change ◽  
Teacher Educators ◽  
Entrepreneurial Education ◽  
Constructive Learning ◽  
Study Approach ◽  
The University ◽  
Action Competence ◽  
Shed Light

Entrepreneurial education offers valuable opportunities for teachers to foster and enhance creativity and action competence, which are also important for sustainability education. The University of Wales Trinity Saint David (UWTSD) is a leader in the development of entrepreneurial education in teacher education both in Wales and internationally. The objective of this article is to shed light on how an entrepreneurial education approach can help foster social change. The aim of this study is to learn from teacher educators at UWTSD about how they support creativity, innovation, and an enterprising mindset in their learners. A case study approach is applied. By analysing documentary evidence such as module and assignment handbooks, we explore how teacher educators at UWTSD deliver entrepreneurial education for social change. Our findings indicate that UWTSD’s development of entrepreneurial education in teacher training has enabled constructive learning, cultivating creativity and action competence. We provide examples that display how the intentions of the Curriculum for Wales and entrepreneurial education approaches of the UWTSD emerge in practice. These examples show outcomes of the entrepreneurial projects that evince the enactment of social change. The findings also show that the educational policy of Wales supports entrepreneurial education throughout all levels of the educational system.

Linguistic Evidence for ‘Romanization’: Continuity and Change in Romano-British Onomastics: A Study of the Epigraphic Record with Particular Reference to Bath

Britannia ◽  
2007 ◽  
Vol 38 ◽  
pp. 35-61 ◽  
Author(s):  
Alex Mullen
Keyword(s):  
Online Database ◽  
Personal Names ◽  
Archaeological Material ◽  
Continuity And Change ◽  
Introductory Section ◽  
Literary Sources ◽  
Linguistic Evidence ◽  
Roman Culture ◽  
Shed Light

Based on a new online database of Celtic personal names, this research demonstrates how the study of Romano-British onomastics can shed light on the complexities of linguistic and cultural contacts, complementing archaeological material and literary sources. After an introductory section on methodology, Part One analyses naming formulae and expressions of filiation as evidence for both continuity and change dependent on social and geographical factors. Confusion and contamination between the Latin and Celtic systems proved much less common than on the Continent, where earlier contact with Roman culture and the written tradition for Continental Celtic occasionally facilitated an unusual form of syncretism. Part Two examines the naming formulae attested at Roman Bath and the mechanisms by which Celts adopted Latin names. The case-study of Bath relates continuity and change in both naming formulae and nomenclature to an acceptance of, or resistance to, ‘Romanization’ in Britain.

scholarly journals Generalizing Treatment Effect Estimates From Sample to Population: A Case Study in the Difficulties of Finding Sufficient Data

2016 ◽  
Vol 41 (4) ◽  
pp. 357-388 ◽  
Author(s):  
Elizabeth A. Stuart ◽  
Anna Rhodes
Keyword(s):  
Head Start ◽  
Randomized Trial ◽  
Treatment Effect ◽  
External Validity ◽  
Randomized Trials ◽  
Target Population ◽  
Data Sets ◽  
Common Data Elements ◽  
Ex Post

Background: Given increasing concerns about the relevance of research to policy and practice, there is growing interest in assessing and enhancing the external validity of randomized trials: determining how useful a given randomized trial is for informing a policy question for a specific target population. Objectives: This article highlights recent advances in assessing and enhancing external validity, with a focus on the data needed to make ex post statistical adjustments to enhance the applicability of experimental findings to populations potentially different from their study sample. Research design: We use a case study to illustrate how to generalize treatment effect estimates from a randomized trial sample to a target population, in particular comparing the sample of children in a randomized trial of a supplemental program for Head Start centers (the Research-Based, Developmentally Informed study) to the national population of children eligible for Head Start, as represented in the Head Start Impact Study. Results: For this case study, common data elements between the trial sample and population were limited, making reliable generalization from the trial sample to the population challenging. Conclusions: To answer important questions about external validity, more publicly available data are needed. In addition, future studies should make an effort to collect measures similar to those in other data sets. Measure comparability between population data sets and randomized trials that use samples of convenience will greatly enhance the range of research and policy relevant questions that can be answered.

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