The SANET Toolbox: New Methods for Network Spatial Analysis

2006 ◽  
Vol 10 (4) ◽  
pp. 535-550 ◽  
Author(s):  
Atsuyuki Okabe ◽  
Kei-Ichi Okunuki ◽  
Shino Shiode
Keyword(s):  
Spatial Analysis ◽  
New Methods ◽  
Network Spatial Analysis

scholarly journals The Assessment Of Geographical Borders In Economic Research

2017 ◽  
Vol 19 (5) ◽  
pp. 99-123
Author(s):  
Małgorzata Markowska ◽  
Marek Sobolewski
Keyword(s):  
Spatial Analysis ◽  
Human Development Index ◽  
Moving Average ◽  
Economic Research ◽  
Simple Method ◽  
New Methods ◽  
Hierarchical Relations ◽  
Socio Economic Impact ◽  
Spatial Moving Average ◽  
The Given

The length of common border between two geographical units is frequently used as a basic weight in spatial analysis. The newest methodological propositions such as tests for hierarchical relations (Markowska et. al. 2014; Sokołowski et. al. 2013), regional spatial moving average and new spatial correlation coefficient (Markowska et. al. 2015) are using border lengths. In cited references new methods have been illustrated by analyses for EU NUTS2 regions. It is obvious that borders between regions belonging to different countries have different socio-economic impact than borders between regions lying in the same country. A new simple method for assesment the importance of borders is proposed in the paper. It is based on a chosen macroeconomic variable available at NUTS 2 level (e.g. GDP, infant mortality, Human Development Index). For neighboring regions bigger value is divided by smaller value giving the local importance of the given border. These measures of local border importance can be than average for borders within the same country and for borders for each pair of neighboring countries.

scholarly journals Spatial Analysis and Visualization of Geographic Access to Food in the Capital Area of Bulungan Regency, North Kalimantan Province

2018 ◽  
Vol 32 (2) ◽  
pp. 146-155
Author(s):  
Bowo Susilo ◽  
Rika Harini
Keyword(s):  
Food Security ◽  
Spatial Analysis ◽  
Transportation Network ◽  
Vehicle Ownership ◽  
Geographic Access ◽  
Four Dimensions ◽  
Coverage Density ◽  
Geographical Access ◽  
Network Spatial Analysis ◽  
Access To Food

Recently, food security becomes a priority for many governments particularly in developing countries. Food security has four dimensions i.e. availability, accessibility, stability, and utilization. This study examined food accessibility in term of geographic access i.e. the contribution of the geographic environment to food choices and consumption. The study located in Tanjung Selor Subdistrict, the capital region of Bulungan Regency as well as North Kalimantan Province. Geographic access to food was analyzed based on spatial distribution of food stores, settlement, and availability of transportation network. Spatial analysis, i.e. coverage, density, and network analysis, as well as the spatial visualization were performed using tools available in GIS software. This study revealed some circumstance related to geographical access to food in the study area. Geographical access to food for non-motorized people is limited. Non-motorized people have to walk more than 1 km to the nearest food store. Access to food for motorized people is somewhat different. Their geographical access, in general, were categorized as easy to moderate. This situation indicates that the availability of public transport or vehicle ownership is necessary to improve access to food.

scholarly journals Development of the Theory of Six Value Aggregation Paths in Network Modeling for Spatial Analyses

2020 ◽  
Vol 9 (4) ◽  
pp. 234
Author(s):  
Anna Maria Kowalczyk ◽  
Tomasz Bajerowski
Keyword(s):  
Spatial Analysis ◽  
Urban Areas ◽  
Network Structures ◽  
Spatial Structures ◽  
Scale Free ◽  
New Methods ◽  
Dynamic Development ◽  
Maximum Value ◽  
Space Modeling

The dynamic development of spatial structures entails looking for new methods of spatial analysis. The aim of this article is to develop a new theory of space modeling of network structures according to six value aggregation paths: minimum and maximum value difference, minimum and maximum value decrease, and minimum and maximum value increase. The authors show how values presenting (describing) various phenomena or states in urban space can be designed as network structures. The dynamic development of spatial structures entails looking for new methods of spatial analysis. This study analyzes these networks in terms of their nature: random or scale-free. The results show that the paths of minimum and maximum value differences reveal one stage of the aggregation of those values. They generate many small network structures with a random nature. Next four value aggregation paths lead to the emergence of several levels of value aggregation and to the creation of scale-free hierarchical network structures. The models developed according to described theory present the quality of urban areas in various versions. The theory of six paths of value combination includes new measuring tools and methods which can impact quality of life and minimize costs of bad designs or space destructions. They are the proper tools for the sustainable development of urban areas.

Replication of Wet Objects and Cells

1974 ◽  
Vol 32 ◽  
pp. 102-103
Author(s):  
S. Basu ◽  
D. F. Parsons
Keyword(s):  
Water Vapor Pressure ◽  
High Vacuum ◽  
Polystyrene Latex ◽  
Vacuum System ◽  
Saturated Water Vapor ◽  
Replication Method ◽  
New Methods ◽  
Saturated Water ◽  
Water Vapors ◽  
Intermediate Chamber

We are approaching the invasiveness of cancer cells from the studies of their wet surface morphology which should distinguish them from their normal counterparts. In this report attempts have been made to provide physical basis and background work to a wet replication method with a differentially pumped hydration chamber (Fig. 1) (1,2), to apply this knowledge for obtaining replica of some specimens of known features (e.g. polystyrene latex) and finally to realize more specific problems and to improvize new methods and instrumentation for their rectification. In principle, the evaporant molecules penetrate through a pair of apertures (250, 350μ), through water vapors and is, then, deposited on the specimen. An intermediate chamber between the apertures is pumped independently of the high vacuum system. The size of the apertures is sufficiently small so that full saturated water vapor pressure is maintained near the specimen.

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