scholarly journals Modelling the Impact of Urbanization on Groundwater Using System Dynamic Technique. A Case Study of Arusha Municipal Well Field in Northeastern Tanzania.

2009 ◽  
Vol 32 (2) ◽  
pp. 67-80
Author(s):  
Nimzihirwa Kashimbiri ◽  
Felix Mtalo ◽  
Fredrick Mwanuzi ◽  
Nepal C. Mandal ◽  
Vijay S. Singh
Keyword(s):  
Historical Data ◽  
System Dynamic ◽  
Data Series ◽  
Dynamic Technique ◽  
Model Efficiency ◽  
Aquifer Characteristics ◽  
Form Model ◽  
Impact Of Urbanization ◽  
The Impact

This paper is concerned with the impact of urbanization in aquifer well-system located in the Municipalarea of Arusha city, Tanzania. A system dynamic (SD) model was built under VENSIM PLE workbench fromtwenty-five years (1978-2003) physical and non-physical data to simulate their interactions and relations.This involved use of mathematics ideas and concepts in studying the physical and non – physical componentsseparately, and finally putting them together in new form (model) and study their relations. After model wasfound to be structurally complete and simulate properly by using the model and unit check tool of VENSIMPLE,parametric calibration of the model follows. Model output results were then compared with existing fieldconditions and information’s with the help of Excel spreadsheet. Historical data of population, rainfall, GDP,aquifer characteristics and land use was used as inputs. The model was trained for data series of 1978 to 1990and examined for data series of 1990 to 2003. Model efficiency criteria R2, suggested by Nash and Sutcliffe(1970), produced good results ranging from 0.6333 to 0.9868 during calibration and 0.9833 to 0.9985 duringverification. The model reveals that urbanization has enormous impact on population which was increasing ata rate of 4% from 1978 to 2003, which in turn caused increase in water demand for about 6% annually; as aresult aquifer well-system was overstressed due to over-pumping. Lastly a prediction of the situation for 2025was carried out in succession, and then interpretations and discussion concludes the paper.

The impact of urbanization on air stagnation: Shenzhen as case study

2019 ◽  
Vol 664 ◽  
pp. 347-362 ◽  
Author(s):  
Zhiqiang Li ◽  
Yulun Zhou ◽  
Bingcheng Wan ◽  
Qinxin Chen ◽  
Bo Huang ◽  
...  
Keyword(s):  
Impact Of Urbanization ◽  
The Impact

The Impact of Urbanization on Current and Future Coastal Precipitation: A Case Study for Houston

2010 ◽  
Vol 37 (2) ◽  
pp. 284-304 ◽  
Author(s):  
J Marshall Shepherd ◽  
Michael Carter ◽  
Michael Manyin ◽  
Dmitry Messen ◽  
Steve Burian
Keyword(s):  
Impact Of Urbanization ◽  
The Impact

The impact of urbanization on agricultural dynamics: a case study in Belgium

2020 ◽  
Vol 15 (5) ◽  
pp. 626-643 ◽  
Author(s):  
Veronique Beckers ◽  
L. Poelmans ◽  
A. Van Rompaey ◽  
N. Dendoncker
Keyword(s):  
Impact Of Urbanization ◽  
The Impact

scholarly journals The Impact of the Business Environment in Developing an Enterprise - Case Study: Furniture Manufacturing Tefik Canga Design

2015 ◽  
Vol 5 (2) ◽  
pp. 93
Author(s):  
MSc. Arbenita Topalli
Keyword(s):  
Historical Data ◽  
Business Environment ◽  
Production Costs ◽  
Market Segment ◽  
Competitive Pressure ◽  
Input Output ◽  
Furniture Manufacturing ◽  
Productivity Increase ◽  
The Impact

The enterprise is an organization that reconciles the workforce, real capital, techniques, information and knowledge to produce and service. The enterprise cannot control or have any impact on the environment that it`s surrounded by, only to adjust to it. Despite that, enterprises can be specialized in a special market segment, yet it will be subject to competitive pressure. Furniture Manufacturing Tefik Canga Design has taken over the use of natural and unnatural resources to promote the development and growth, or to solve financial and operational problems. With this research, we propose a growth model of a manufacturing enterprise in relation to the business environment. Implementation of the case is described and the profitability and productivity performance is analyzed using five years of historical data product. Therefore, by this study is expected to achieve results, that will improve the input-output relationship in order to increase the firm's productivity, increase the value of employees and create opportunities for development in order to cut production costs.

The impact of urbanization and Han Chinese migration on the endangerment of languages and cultures in China

2016 ◽  
Vol 39 (1) ◽  
pp. 161-173
Author(s):  
Defen Yu
Keyword(s):  
Yunnan Province ◽  
Han Chinese ◽  
Language And Culture ◽  
Mass Migration ◽  
Fast Pace ◽  
Chinese Migration ◽  
Impact Of Urbanization ◽  
The Impact ◽  
Contextual Reality

Through a case study on the Zijun Samatao community of Kunming City in Yunnan Province of China, this paper discusses the impact of urbanization and mass Han Chinese migration on the endangerment of an ethnic minority language and culture. Samatao of Kunming is a subgroup of the minority Yi nationality of China. Historically, Kunming was the original homeland of many Yi communities including the Samatao. With the fast pace of urbanization and increasing Han Chinese migration, the Samatao community is losing their language and has lost their traditional culture and religion. Urbanization has brought mass migration into Zijun village, accelerating the endangerment of the Samatao language. Of nearly three thousand registered Samatao people, fewer than 100 (including semi-speakers) have any level of active knowledge of their language and culture. Since 1994, the endangerment of Samatao language has dramatically increased, especially since 2003. Based on data from fieldwork in the community over more than twenty years, this paper explores how the ideals of the Samatao community about preserving their language and culture are challenged by the contextual reality of urbanization and mass Han Chinese migration.

Aligning financial and functional equivalent depreciations rates of building assets

2019 ◽  
Vol 27 (2) ◽  
pp. 441-457 ◽  
Author(s):  
Filipa Salvado ◽  
Nuno Almeida ◽  
Alvaro Vale e Azevedo
Keyword(s):  
Life Cycle ◽  
Historical Data ◽  
Life Cycle Management ◽  
Life Cycle Thinking ◽  
School Building ◽  
Content Type ◽  
Functional Equivalent ◽  
Useful Life ◽  
The Impact

Purpose Both financial and non-financial functions are imbedded in the life-cycle management activities of building assets. These functions provide relevant information for the establishment of operational and maintenance strategies and for decision-making processes related with the timing of major repairs, replacements and rehabilitations. The purpose of this paper is to focus on improving the alignment of financial and non-financial functions related to the recognition that the service potential of buildings should be appropriately funded as it is consumed over its life cycle. Design/methodology/approach Authors undertake an analysis of depreciation rates used to accommodate a systematic allocation of the depreciable amount of building assets over its useful life. Different depreciation approaches and calculation methods are explored. A case study of a school building portfolio is used to debate situations of misalignment of financial and non-financial depreciation rates. Data mining methods including decision tree and clustering are used to predict equivalent functional depreciation rates of buildings system and subsystems and promote an enhanced alignment with regulated financial depreciation rates toward an optimized life-cycle management of the school building portfolio. Findings Historical data show the relevance of considering technical and functional characteristics of the building system and their subsystems (landscaping; structure; external elevations and roofs; interior divisions; and services and equipment) when determining depreciation rates for the building assets The case study showed a misalignment of equivalent functional and financial depreciation rates used in the life-cycle management activities of the school building portfolio ranging between 1/1.26 for external elevations and roofs and 1/5.21 for landscaping. Originality/value Buildings initial technical and functional attributes are affected with its wear, aging or decay, causing loss of value until they reach end-of-life. This paper demonstrates the impact of the different interpretations of the concept of useful life and the subsequent misalignment that it generates between financial functions based on financial depreciation rates and non-financial functions based on historical data and the functional equivalent (technical and functional) depreciation rates. Economic data of 158 public school buildings constructed in Portugal since the 1940s, that sound life-cycle thinking enhances the alignment of both financial and non-financial functions.

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