scholarly journals Problem Analysis and Suggestion for Improved Approaches to Ecological Planting and the Establishment of Urban Parks -A Case Study of the Nature Ecological Forest in Yeouido Park, Seoul-

2011 ◽  
Vol 39 (2) ◽  
pp. 91-102
Author(s):  
Kyong-Ho Seong ◽  
Kyong-Jae Lee ◽  
Jin-Woo Choi ◽  
Jong-Yup Kim
Water ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 683
Author(s):  
Birte Moser ◽  
Meruyert Beknazarova ◽  
Harriet Whiley ◽  
Thilini Piushani Keerthirathne ◽  
Nikki Harrington ◽  
...  

Iron-related clogging of boreholes, pumps and dripper lines is a significant and costly problem for irrigators worldwide. The primary cause of iron-related clogging is still debated. Previous studies have described complex interactions between biological clogging and inorganic iron/manganese oxide precipitation. This case study examined groundwater bores used for viticulture irrigation in the Limestone Coast region, a highly productive wine growing area in the SE of South Australia. Iron clogging of bore screens, pumps and dripper systems has been a persistent problem in the region and the issue is perceived to be growing, with irrigators suggesting the widespread introduction of iron-related bacteria (IRB) through drilling equipment to be the root cause of the problem. Analysis of the groundwater microbiology and inorganic chemistry found no apparent correlation between the presence of IRB and the clogging status of wells. In fact, IRB proved to be widespread throughout the limestone aquifer. However, a clear correlation could be found between clogging affected bores and the redox potential of the groundwater with the most severely affected bores strongly oversaturated in respect to iron oxide minerals. Elevated dissolved concentrations of Fe(II) thereby tended to be found in deeper bores, which also were generally more recently drilled. Following decades of less than average rainfall, a tendency to deepen bores in response to widespread declines in water levels has been documented for the SE of South Australia. The gradually widening clogging problem in the region is postulated to be related to the changes in climate in the region, with irrigators increasingly driven to rely on deeper, anoxic iron-rich groundwater resources.


2017 ◽  
Vol 44 (12) ◽  
pp. 1005-1013 ◽  
Author(s):  
Olivier Quirion-Blais ◽  
André Langevin ◽  
Martin Trépanier

In this article, we address a winter maintenance problem where the streets need to be plowed and gritted in a sequence that depends on the class of the road. The maintenance fleet includes vehicles equipped for plowing, some for spreading, and some for both at once. The objective is to complete the operations as rapidly as possible while considering street hierarchy, turn restrictions, heterogeneous speeds, and street–vehicle compatibility. An adaptive large neighborhood search framework is developed to solve the problem. Analysis of the results obtained can provide both a good basis for vehicle routing and help managers plan long-term policies and investments.


Author(s):  
Chris Flynn

This paper has been developed from a third year dissertation written as part of the Diploma in Horticulture course at the Royal Botanic Gardens, Kew. It serves as an overview of the subject of ecological planting and its potential applications within public gardens. It also outlines some scientific benefits regarding ecological studies, the impact that this type of planting may have on horticulture (both in gardens and the nursery trade), and the educational benefits for the public and school groups. The case study below looks at the viability of representing a section of Snow Gum Grassy Woodland (a vegetation type found in New South Wales, Australia) outside in Coates Wood, Wakehurst Place, UK.


Author(s):  
Zhenqi Zhou ◽  
Zhen Xu

The propensity for visiting urban parks is affected by the park’s attractiveness and travel convenience, where walking provides the most basic and fair access. Walking routes from residences to parks, in terms of duration and perception, have received insufficient attention in the literature, particularly in the urban form context in China. Using the case study of Xuanwu Lake Park in Nanjing, we acquire walking routes from residences to the park through open-source data scraping in order to depict the pedestrian shed and pedestrian environment reasonably along these routes. The results show that the walking routes vary significantly with regards to distance, turns, street views, and so on. Proximity to urban parks, in terms of Euclidean distance, does not necessarily correspond to actual route distance, which may have a more direct influence on travel convenience and, hence, visiting propensity. Palpable differences in green visual ratio, image elements, and points of interest along these routes may also contribute to pedestrian environmental disparity. Analyzing data obtained from an online map provides a rapid and objective approach to detect pedestrian sheds and diagnose pedestrian environments, which can facilitate urban planners and policy makers in siting new parks and assessing the service capacity of parks.


2014 ◽  
Vol 125 ◽  
pp. 38-47 ◽  
Author(s):  
Mario Reyes ◽  
Antonio Páez ◽  
Catherine Morency
Keyword(s):  

2020 ◽  
Vol 33 (33) ◽  
pp. 217-240
Author(s):  
Grzegorz Pilarski

Background: The article presents a method of estimating the security level which indicates how probable it is for a phenomenon to occur. Objectives: The author attempts to answer the question: How do we estimate security? Decision makers usually need percentage showing the probability of an incident taking place in the future. This information is needed in the first place, later decision makers can use more descriptive information. Methods: The research problem concerns the assessment of security using the estimation method. Depicting security in numbers is difficult, thus the descriptive method is also usually applied. The estimation method facilitates the assessment. It is helpful since it is partly done by calculation and partly by guessing or approximation. Based on a case study analysing whether a terrorist attack may occur, the author also used tools such as averaging expert predictions, scenario analysis and risk analysis. Results: This article provides a view on forecasting security, which results in a method of estimating the level of security. Conclusions: The author presents an approach which allows to initially estimate the security level of the analyzed phenomenon in a relatively short period of time.


2020 ◽  
Vol 1 (2) ◽  
pp. 92-100
Author(s):  
Sandra Dewi ◽  
Zulhelmi Zulhelmi

The background of this research is that there are still not many people (traders) in Lubuk Basung, who use sharia banking services in financing assessments at Bank Syariah Mandiri KCP Lubuk Basung. This can be seen from the number of outdated Lubuk Basung market traders which increased from 2014-2018 but still cannot be utilized by Bank Syariah Mandiri Lubuk Basung KCP to become its customers. Research by the author is to use field research methods or quantitative descriptive field research that is about phenomena, events, and human life by being involved directly and / or indirectly in the settings studied, contextual and comprehensive. This research was conducted to determine the business opportunities of Bank Syariah Mandiri KCP in Lubuk Basung. Based on the results of research and analysis by the author about the business opportunities of the Bank Syariah Mandiri Lubuk Basung KCP with a case study of outdated Lubuk Basung market traders, there is a business opportunity of the Bank Syariah Mandiri KCP Lubuk Basung as seen in terms of problem analysis and situation analysis, analysis of unknown areas and analysis of targeted customer surveys. Whereas the biggest opportunity comes from problem analysis and situation analysis.


2018 ◽  
Vol 183 ◽  
pp. 03006 ◽  
Author(s):  
Krzysztof Knop ◽  
Krzysztof Mielczarek

The article presents a case study on the use of specially prepared 5W-1H and 4M sheets for the analysis of the problem during the visual inspection process of the electric device, in order to solve it. The identified problem was related to inconsistent assessments during the visual (alternative) inspection of chamber gaps of the electric switch. The research methodology was presented the same as results confirming the effectiveness of the problem analysis in the area of quality control by using these two methods of Lean and WCM concepts. The article aimed to show that a skilful and pragmatic approach to the problem supported by appropriate tools can contribute to its effective solution.


Sign in / Sign up

Export Citation Format

Share Document