scholarly journals Efficient Original-Destination Bandwidth: A Novel Model for Arterial Traffic Signal Coordination

2020 ◽  
Vol 53 (5) ◽  
pp. 609-616
Author(s):  
Ying Wang ◽  
Zongzhong Tian
Keyword(s):  
Lag Phase ◽  
Band Model ◽  
Time Dynamic ◽  
Signal Coordination ◽  
Dynamic Matrix ◽  
Phase Sequence ◽  
The Matrix ◽  
Arterial Traffic ◽  
The Relationship

This paper proposes an efficient origin-estimation bandwidth (OD band) model, which provides dedicated progression bands for arterial traffic based on the real-time dynamic matrix of their estimated OD pairs. The innovations of the OD band model are as follows: First, the dynamics of through and turning-in/out traffics are analyzed based on the matrix of their estimated OD pairs, and used to generate the traffic movement sequence at continuous intersections; Second, the end-time of green interval for lag-lag phase sequence at continuous intersections is determined according to the relevant constraints, the relationship between the start/end-time of green interval and the minimum/maximum green intervals; Third, the bandwidths of the two directions of the artery ware produced, after being weighted by their traffic demands. The intuitiveness, convenience, and feasibility of the OD band model were fully demonstrated through a case study. Overall, the OD band model helps to produce bi-directional progression bands for traffic with many turning movements on the artery, and enables the through and turning-in/out traffics to proceed through continuous intersections, when the signals at those intersections are green.

Comparative Petrological Studies of 1962 and 1988–1989 Eruptions of Tokachidake Volcano, Japan: A Case Study for Understanding the Relationship Between Eruption Style and Magma Processes

2019 ◽  
Vol 14 (5) ◽  
pp. 766-779
Author(s):  
Mitsuhiro Nakagawa ◽  
Akiko Matsumoto ◽  
Kyohei Kobayashi ◽  
Keiji Wada ◽  
◽  
...  
Keyword(s):  
Basaltic Magma ◽  
Magma Ascent ◽  
Eruption Style ◽  
Magma Plumbing System ◽  
Magma Supply ◽  
The Matrix ◽  
Cap Rock ◽  
The Difference ◽  
The Relationship

Repeated magmatic eruptions of Tokachidake volcano have caused severe volcanic disasters on three occasions during the 20th century. To prepare for the next eruptive activity, understanding the structure of the magma plumbing system by using petrological analysis of juvenile materials is crucial. Here, we perform petrological analysis of juvenile materials to investigate the difference between two contrasting eruptions in 1962 and 1988–1989, respectively. All these juvenile materials are composed of mafic andesite, which were formed by mixing of olivine-bearing basaltic and pyroxene andesitic magmas. The compositional zonations of olivine phenocrysts in all of these rocks suggest that the injection of the basaltic magma into the andesitic magma occurred several months prior to the 1962 eruption and about six months before the 1988–1989 eruption. In the case of the 1962 activity, the mixed magma rapidly ascended without stagnation from the magma chamber and erupted as a sub-Plinian type. However, the juvenile materials of the 1988–1989 eruptions show distinct petrological features such as higher crystallinity of the matrix, orthopyroxene reaction rims around the olivine, and overgrowth mantle zones around Ti-magnetite phenocrysts. These features suggest that the mixed magma ascended slowly and possibly stagnated at shallower levels prior to eruption. The stagnated magma became a cap rock of the vent system and caused a series of Vulcanian eruptions. These distinct modes of magma ascent can be explained by differences in the magma supply rate. In the case of the 1962 eruption, the volume of magma that erupted in a period of less than 24 h was 7.1 × 107 m3. On the contrary, 23 explosions occurred over three months of the 1988–1989 activity and generated 1 × 105 m3 of ejecta including juvenile and non-juvenile materials. These large eruption rate differences can be attributed to the distinct ascent rates of the magma between the two eruptive activities.

Politics of Power-Sharing in Disputed Territories: A Case Study of the 13th Amendment in the Constitution of Azad Jammu and Kashmir

2021 ◽  
pp. 002190962110522
Author(s):  
Raja Qaiser Ahmed
Keyword(s):  
Power Sharing ◽  
Jammu And Kashmir ◽  
Proper Functioning ◽  
The Matrix ◽  
The Government ◽  
Azad Kashmir ◽  
The Relationship

The proper functioning of the government and administration of Azad Jammu and Kashmir (AJK) is taken care of by Pakistan through the successive installment of courts and a series of acts that inter alia include the 1962 Act, the 1970 Act, and the Interim Constitution Act 1974. This paper discusses power-sharing arrangements in AJK, and makes connections to asymmetrical federalism and liminality. It further dissects the matrix of the 13th amendment in the constitution of Azad Kashmir and how it changed the nature of the relationship between AJK and Pakistan. The paper also underscores the contemporary contours of state and polity in AJK and the debate on the 14th amendment.

The Internationalization of Production, Intra-Core Relations and the State: A Case Study of IBM and the British Computer Industry

1986 ◽  
Vol 34 (3) ◽  
pp. 387-405
Author(s):  
Heidi Gottfried
Keyword(s):  
International Business ◽  
Economic Planning ◽  
Economic Factors ◽  
Combined Effects ◽  
Computer Industry ◽  
National Economic ◽  
The Matrix ◽  
Political Economic ◽  
The Relationship

Theories of dependency and development contain several deficiencies which limit their effectiveness for the study of core/core relations. Similarly, frameworks allowing for a study of intra-core relations have not adequately specified the relationship between international and national factors, or their combined effects, in generating inequities between core countries. This case study offers some preliminary observations about the relationship between internationalization of production and national economic planning efforts. The study highlights several points concerning the matrix of international and national political-economic factors, and focuses on particular patterns resulting from the configuration of these factors in the case of the British computer industry and International Business Machines (IBM).

scholarly journals AM-Band: An Asymmetrical Multi-Band model for arterial traffic signal coordination

2015 ◽  
Vol 58 ◽  
pp. 515-531 ◽  
Author(s):  
Chao Zhang ◽  
Yuanchang Xie ◽  
Nathan H. Gartner ◽  
Chronis Stamatiadis ◽  
Tugba Arsava
Keyword(s):  
Traffic Signal ◽  
Band Model ◽  
Signal Coordination ◽  
Arterial Traffic ◽  
Multi Band

Kämpfe um Bergbau und die Möglichkeiten demokratischer Transformation

2017 ◽  
Vol 47 (189) ◽  
Author(s):  
Kristina Dietz
Keyword(s):  
Direct Democracy ◽  
Social Power ◽  
Political Agenda ◽  
The Political ◽  
Liberal Democratic ◽  
Political Effects ◽  
Mining Project ◽  
National Governments ◽  
The Relationship

The article explores the political effects of popular consultations as a means of direct democracy in struggles over mining. Building on concepts from participatory and materialist democracy theory, it shows the transformative potentials of processes of direct democracy towards democratization and emancipation under, and beyond, capitalist and liberal democratic conditions. Empirically the analysis is based on a case study on the protests against the La Colosa gold mining project in Colombia. The analysis reveals that although processes of direct democracy in conflicts over mining cannot transform existing class inequalities and social power relations fundamentally, they can nevertheless alter elements thereof. These are for example the relationship between local and national governments, changes of the political agenda of mining and the opening of new spaces for political participation, where previously there were none. It is here where it’s emancipatory potential can be found.

Interactive acculturation of Turkish-Belgian parents and children in Flanders: A case study of Beringen

2019 ◽  
Vol 16 (3) ◽  
pp. 417-428
Author(s):  
Özgün Ünver ◽  
Ides Nicaise
Keyword(s):  
Early Childhood ◽  
Maternal Employment ◽  
Domain Specificity ◽  
Specific Context ◽  
Childhood Education ◽  
Parents And Children ◽  
Education And Care ◽  
The Relationship ◽  
The Town

This article tackles the relationship between Turkish-Belgian families with the Flemish society, within the specific context of their experiences with early childhood education and care (ECEC) system in Flanders. Our findings are based on a focus group with mothers in the town of Beringen. The intercultural dimension of the relationships between these families and ECEC services is discussed using the Interactive Acculturation Model (IAM). The acculturation patterns are discussed under three main headlines: language acquisition, social interaction and maternal employment. Within the context of IAM, our findings point to some degree of separationism of Turkish-Belgian families, while they perceive the Flemish majority to have an assimilationist attitude. This combination suggests a conflictual type of interaction. However, both parties also display some traits of integrationism, which points to the domain-specificity of interactive acculturation.

The Relationship between Working Environment and Internship Satisfaction Level: A Case Study Of A 4-Star Hotel Restaurant In Germany

2019 ◽  
Vol 2 (4) ◽  
pp. 276-291
Author(s):  
Chatarina Natalia Putri
Keyword(s):  
Career Development ◽  
Working Hours ◽  
Learning Opportunities ◽  
Working Environment ◽  
The Other ◽  
Satisfaction Level ◽  
Supervisory Support ◽  
Support Organization ◽  
The Relationship

There are many factors that can lead to internship satisfaction. Working environment is one of the factors that will result to such outcome. However, many organizations discarded the fact of its importance. The purpose of this study is to determine whether there is a significant relationship between working environment and internship satisfaction level as well as to determine whether the dimensions of working environment significantly affect internship satisfaction. The said dimensions are, learning opportunities, supervisory support, career development opportunities, co-workers support, organization satisfaction, working hours and esteem needs. A total of 111 questionnaires were distributed to the respondents and were processed by SPSS program to obtain the result of this study. The results reveal that learning opportunities, career development opportunities, organization satisfaction and esteem needs are factors that contribute to internship satisfaction level. In the other hand, supervisory support, co-workers support and working hours are factors that lead to internship dissatisfaction. The result also shows that organization satisfaction is the strongest factor that affects internship satisfaction while co-workers support is the weakest.

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