A Quality-enabled Spatial Integration System

2007 ◽  
pp. 133-157 ◽  
Author(s):  
Omar Boucelma ◽  
Mehdi Essid ◽  
Yassine Lassoued
Keyword(s):  
Spatial Integration ◽  
Integration System

The Palestinian Refugee Camps In Jordan: Between National Identity and Socio-economic Integration

2004 ◽  
Vol 2 (2) ◽  
pp. 198-221 ◽  
Author(s):  
Ala Al-Hamarneh
Keyword(s):  
United Nations ◽  
Collective Memory ◽  
Economic Integration ◽  
Refugee Camps ◽  
Spatial Integration ◽  
Political Activities ◽  
Cultural Traditions ◽  
The Past ◽  
Distinct Character ◽  
Palestinian Refugee

At least 50 per cent of the population of Jordan is of Palestinian origin. Some 20 per cent of the registered refugees live in ten internationally organized camps, and another 20 per cent in four locally organized camps and numerous informal camps. The camps organized by the United Nations Relief and Works Agency for Palestine Refugees in the Near East (UNRWA) play a major role in keeping Palestinian identity alive. That identity reflects the refugees' rich cultural traditions, political activities, as well as their collective memory, and the distinct character of each camp. Over the past two decades integration of the refugees within Jordanian society has increased. This paper analyses the transformation of the identity of the camp dwellers, as well as their spatial integration in Jordan, and other historical and contemporary factors contributing to this transformation.

Spatial Integration of Chinese and Asians in Metropolitan Chicago

2003 ◽  
Vol 21 (1) ◽  
pp. 153-165
Author(s):  
Linda Q. Wang
Keyword(s):  
Spatial Integration

scholarly journals A New Efficient Filtering Model for GPS/SINS Ultratight Integration System

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Chaochen Wang ◽  
Yuming Bo ◽  
Changhui Jiang
Keyword(s):  
Navigation System ◽  
The State ◽  
Integrated System ◽  
State Model ◽  
Integration System ◽  
Filter Model ◽  
Integration Mode ◽  
Measurement Vector ◽  
Computation Load ◽  
Vector Dimension

Global Positioning System (GPS) and strap-down inertial navigation system (SINS) are recognized as highly complementary and widely employed in the community. The GPS has the advantage of providing precise navigation solutions without divergence, but the GPS signals might be blocked and attenuated. The SINS is a totally self-contained navigation system which is hardly disturbed. The GPS/SINS integration system could utilize the advantages of both the GPS and SINS and provide more reliable navigation solutions. According to the data fusion strategies, the GPS/SINS integrated system could be divided into three different modes: loose, tight, and ultratight integration (LI, TI, and UTC). In the loose integration mode, position and velocity difference from the GPS and SINS are employed to compose measurement vector, in which the vector dimension has nothing to do with the amount of the available satellites. However, in the tight and ultratight modes, difference of pseudoranges and pseudorange rates from the GPS and SINS are employed to compose the measurement vector, in which the measurement vector dimension increases with the amount of available satellites. In addition, compared with the loose integration mode, clock bias and drift are included in the integration state model. The two characteristics magnify the computation load of the tight and ultratight modes. In this paper, a new efficient filter model was proposed and evaluated. Two schemes were included in this design for reducing the computation load. Firstly, a difference between pseudorange measurements was determined, by which clock bias and drift were excluded from the integration state model. This step reduced the dimension of the state vector. Secondly, the integration filter was divided into two subfilters: pseudorange subfilter and pseudorange rate subfilter. A federated filter was utilized to estimate the state errors optimally. In the second step, the two subfilters could run in parallel and the measurement vector was divided into two subvectors with lower dimension. A simulation implemented in MATLAB software was conducted to evaluate the performance of the new efficient integration method in UTC. The simulation results showed that the method could reduce the computation load with the navigation solutions almost unchanged.

scholarly journals The Impact of the Ring Roads on the Location Pattern of Shops in Town and City Centres. A Space Syntax Approach

2021 ◽  
Vol 13 (7) ◽  
pp. 3927
Author(s):  
Akkelies van Nes
Keyword(s):  
Urban Areas ◽  
Space Syntax ◽  
Optimal Location ◽  
Spatial Integration ◽  
Street Network ◽  
Location Pattern ◽  
Ring Road ◽  
Road Projects ◽  
The Impact ◽  
City Centres

This contribution demonstrates how inner ring roads change the location pattern of shops in urban areas with the application of the space syntax method. A market rational behaviour persists, in that shop owners always search for an optimal location to reach as many customers as possible. If the accessibility to this optimal location is affected by changes in a city’s road and street structure, it will affect the location pattern of shops. Initially, case studies of inner ring road projects in Birmingham, Coventry, Wolverhampton, Bristol, Tampere, and Mannheim show how their realisation affect the spatial structure of the street network of these cities and the location pattern of shops. The results of the spatial integration analyses of the street and road network are discussed with reference to changes in land-use before and after the implementation of ring roads, and current space syntax theories. As the results show, how an inner ring road is connected to and the type of the street network it is imposed upon dictates the resulting location pattern of shops. Shops locate and relocate themselves along the most spatially-integrated streets. Evidence on how new road projects influence the location pattern of shops in urban centres are useful for planning sustainable city centres.

Sign in / Sign up

Export Citation Format

Share Document