scholarly journals Urban Commercial Spatial Structure Optimization in the Metropolitan Area of Beijing: A Microscopic Perspective

2019 ◽  
Vol 11 (4) ◽  
pp. 1103
Author(s):  
Fang Wang ◽  
Fang-qu Niu
Keyword(s):  
Spatial Distribution ◽  
Spatial Structure ◽  
Large Population ◽  
Economic Benefits ◽  
Downtown Area ◽  
Commercial Activities ◽  
Proposed Model ◽  
Distribution Features ◽  
Voronoi Method

Urban commercial districts (UCDs) are the concentrated areas for commercial activities in a city, which provide shopping, leisure, business, and other functions. Urban planners usually face problems in how to plan and design UCDs. The layout of UCDs should not only be appropriately concentrated to realize economic benefits, but should also be properly dispersed to accommodate the distribution of the population. Using Beijing as a case study, this study conducted research into UCDs from a microscopic perspective by utilizing open source big data. A recognition and classification method of UCDs was proposed based on the data of POI and road networks. The proposed model combines Huff’s model and the Voronoi method to analyze how various UCDs should be distributed within a city according to the spatial pattern of the population. The results showed that different kinds of UCDs had different spatial distribution features. Problems were also found, for example, UCDs on the urban outskirts served a large population; there were limitations to the spatial distribution of UCDs in the downtown area; and there was incongruity between the UCD types and the population layout. Based on these findings, suggestions regarding the optimization of the urban commercial spatial structure were also put forward.

scholarly journals Economic aspects in the design process of heat recovery installations - case study

2019 ◽  
Vol 20 (1-2) ◽  
pp. 340-343
Author(s):  
Zbigniew Stempnakowski ◽  
Piotr Nikończuk
Keyword(s):  
Energy Efficiency ◽  
Heat Recovery ◽  
Geographical Location ◽  
Economic Benefits ◽  
Economic Aspects ◽  
Recovery Unit ◽  
Proposed Model ◽  
Spray Booth ◽  
The Cost

The paper presents a proposal of economic aspects application in the process of optimizing the construction of heat recovery unit. The proposed model includes the cost of heat exchanger installation and the predicted economic benefits during the operation of the device. The predicted benefits include an increase of energy efficiency resulting from the number of modules of heat recovery unit, decrease unit efficiency during operation, the cost of heat production, average temperatures in the geographical location and working time. A case study was carried out on the example of a spray booth.

scholarly journals Standardization method for teaching yoga meditation and asanas: a case study

2019 ◽  
Vol 9 (1) ◽  
pp. 9-12
Author(s):  
Jose Luis Rosario PT
Keyword(s):  
Blood Pressure ◽  
Large Population ◽  
The Body ◽  
The Other ◽  
Standardization Method ◽  
Simple Application ◽  
Healthy Male ◽  
Proposed Model ◽  
Male Subjects

Yoga is a codex of exercises for the body and mind originated in India. It has a series of benefits for health. However, it is challenging to find a standardized system of meditation and asanas, with a simple application so that it is readily applicable to a large population, as well as easy scientific reproducibility. Aiming to test a reproducible 8–week Yoga learning model, two healthy male subjects, one with 51 and the other with 54 years old, underwent eight sessions of meditation and carefully selected asanas for secure execution. Evaluations occurred before the first session and one day after the last session. The measured variables were blood pressure, heart rate, and global stretch. Both subjects presented improvements in the investigated variables. The proposed model is appropriate for the scientific study of Yoga.

Short-Term Rental Development and Overtourism

2021 ◽  
pp. 134-146
Author(s):  
Flavio Andrew Do Nascimento Santos
Keyword(s):  
Spatial Distribution ◽  
Spatial Analysis ◽  
Metropolitan Area ◽  
Case Study Research ◽  
Economic Benefits ◽  
Supply Side ◽  
Demand Side ◽  
Negative Effects ◽  
Short Term

The boom of short-term rental (STR) intensifies the debate on overtourism because of some negative effects on destinations. Conversely, the STR was a way out in moments of crisis. Until now, only a few studies extend the analysis outside the limits of individual cities; that's why this case-study research was conducted by the analyses of Airbnb listings and the tourists' spatial distribution in Lisbon Metropolitan Area (LMA). For this purpose, this chapter uses two cartographic tools: 1) Airbnb listing from Inside Airbnb Project of Lisbon and 2) Geotaggers' World Atlas (map of sites that tourists took photos). Also, institutional Lisbon urban planning plans fed this study. Methodologically, combining the selected maps is a way to understand tourism spatial analysis by bringing together data on supply-side (rooms) and demand-side (distribution of tourists). The analysis demonstrates that a time-spatial distribution of visitors and the STR throughout the LMA could contribute to avoiding tourism congestion and proper distribution of economic benefits.

scholarly journals Modeling of Emergency Supply Scheduling Problem Based on Reliability and Its Solution Algorithm under Variable Road Network after Sudden-Onset Disasters

Complexity ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-15 ◽  
Author(s):  
Tinggui Chen ◽  
Shiwen Wu ◽  
Jianjun Yang ◽  
Guodong Cong ◽  
Gongfa Li
Keyword(s):  
Road Network ◽  
Road Networks ◽  
Sudden Onset ◽  
The Road ◽  
Bee Colony ◽  
Proposed Model ◽  
Effectiveness And Efficiency ◽  
In Transit ◽  
Emergency Supply

It is common that many roads in disaster areas are damaged and obstructed after sudden-onset disasters. The phenomenon often comes with escalated traffic deterioration that raises the time and cost of emergency supply scheduling. Fortunately, repairing road network will shorten the time of in-transit distribution. In this paper, according to the characteristics of emergency supplies distribution, an emergency supply scheduling model based on multiple warehouses and stricken locations is constructed to deal with the failure of part of road networks in the early postdisaster phase. The detailed process is as follows. When part of the road networks fail, we firstly determine whether to repair the damaged road networks, and then a model of reliable emergency supply scheduling based on bi-level programming is proposed. Subsequently, an improved artificial bee colony algorithm is presented to solve the problem mentioned above. Finally, through a case study, the effectiveness and efficiency of the proposed model and algorithm are verified.

scholarly journals The Influence of Increased Salvage Felling on Forwarding Distance and the Removal—A Case Study from Croatia

Forests ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 7
Author(s):  
Andreja Đuka ◽  
Zoran Bumber ◽  
Tomislav Poršinsky ◽  
Ivica Papa ◽  
Tibor Pentek
Keyword(s):  
Spatial Distribution ◽  
Management Plan ◽  
Management Unit ◽  
Negative Effects ◽  
Forest Operations ◽  
Spatial Reference ◽  
Infrastructure Network ◽  
Gis Environment ◽  
Research Period

During the seven-year research period, the average annual removal was by 3274 m3 higher than the average annual removal prescribed by the existing management plan (MP). The main reason lies in the high amount of salvage felling volume at 55,238 m3 (38.3%) in both the main and the intermediate felling due to oak dieback. The analysis of forest accessibility took into account the spatial distribution of cutblocks (with ongoing felling operations) and the volume of felled timber for two proposed factors: (1) the position of the cutblock and (2) the position of the removal. Cutblock position factor took into account the spatial position of the felling areas/sites, while removal position factor besides the spatial reference took into account the amount of felled timber (i.e., volume) both concerning forest infrastructure network and forest operations. The analysed relative forest openness by using geo-processing workflows in GIS environment showed four types of opening areas in the studied management unit (MU): single-opened, multiple-opened, unopened and opened areas outside of the management unit. Negative effects of the piece-volume law and low harvesting densities on forest operations are highlighted in this research due to high amount of salvage felling particularly in the intermediate felling by replacing timber volume that should have come from thinnings.

scholarly journals Photovoltaics Enabling Sustainable Energy Communities: Technological Drivers and Emerging Markets

Energies ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1862
Author(s):  
Alexandros-Georgios Chronis ◽  
Foivos Palaiogiannis ◽  
Iasonas Kouveliotis-Lysikatos ◽  
Panos Kotsampopoulos ◽  
Nikos Hatziargyriou
Keyword(s):  
State Of The Art ◽  
Research Question ◽  
Economic Benefits ◽  
Energy Market ◽  
Small Scale ◽  
Local Energy ◽  
Community Members ◽  
Open Research ◽  
Energy Community

In this paper, we investigate the economic benefits of an energy community investing in small-scale photovoltaics (PVs) when local energy trading is operated amongst the community members. The motivation stems from the open research question on whether a community-operated local energy market can enhance the investment feasibility of behind-the-meter small-scale PVs installed by energy community members. Firstly, a review of the models, mechanisms and concepts required for framing the relevant concepts is conducted, while a clarification of nuances at important terms is attempted. Next, a tool for the investigation of the economic benefits of operating a local energy market in the context of an energy community is developed. We design the local energy market using state-of-the-art formulations, modified according to the requirements of the case study. The model is applied to an energy community that is currently under formation in a Greek municipality. From the various simulations that were conducted, a series of generalizable conclusions are extracted.

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