Case Study 2: Mamoru Kawaguchi – physical models aiding design, verification and construction of complex spatial structures

In an effort to solve the congestion problem, the local government of Malang City has taken various steps. However, unfortunately, the result has not been effective. This shows that the efforts that have been taken so far are sectoral, therefore a more comprehensive approach is needed in order to reach a more effective result. This research aims at re-evaluating the determination of Malang City's urban spatial structure through the delineation of narrower units of area using the centrality index method. The research suggests that urban spatial structures have a very clear pattern of association with congestion locations. It can be concluded that the local government of Malang City needs to put more consideration on evaluating the urban spatial structure to solve the problem of transportation which is ever-growing the in second largest urban area in East Java Province.

Download Full-text

Formalizing the Mapping of UML Conceptual Schemas to Column-Oriented Databases

International Journal of Data Warehousing and Mining ◽

10.4018/ijdwm.2018070103 ◽

2018 ◽

Vol 14 (3) ◽

pp. 44-68 ◽

Cited By ~ 1

Author(s):

Fatma Abdelhedi ◽

Amal Ait Brahim ◽

Gilles Zurfluh

Keyword(s):

Big Data ◽

Data Warehouse ◽

Relational Databases ◽

Traditional Approach ◽

Physical Models ◽

Decision Making Process ◽

Nosql Databases ◽

Care Field ◽

Sufficient Degree

Nowadays, most organizations need to improve their decision-making process using Big Data. To achieve this, they have to store Big Data, perform an analysis, and transform the results into useful and valuable information. To perform this, it's necessary to deal with new challenges in designing and creating data warehouse. Traditionally, creating a data warehouse followed well-governed process based on relational databases. The influence of Big Data challenged this traditional approach primarily due to the changing nature of data. As a result, using NoSQL databases has become a necessity to handle Big Data challenges. In this article, the authors show how to create a data warehouse on NoSQL systems. They propose the Object2NoSQL process that generates column-oriented physical models starting from a UML conceptual model. To ensure efficient automatic transformation, they propose a logical model that exhibits a sufficient degree of independence so as to enable its mapping to one or more column-oriented platforms. The authors provide experiments of their approach using a case study in the health care field.

Download Full-text

A Case Study of a Modified Gravity Type Cage and Mooring System Using Numerical and Physical Models

IEEE Journal of Oceanic Engineering ◽

10.1109/joe.2004.841400 ◽

2005 ◽

Vol 30 (1) ◽

pp. 47-58 ◽

Cited By ~ 48

Author(s):

J. DeCew ◽

D.W. Fredriksson ◽

L. Bugrov ◽

M.R. Swift ◽

O. Eroshkin ◽

...

Keyword(s):

Modified Gravity ◽

Physical Models ◽

Mooring System

Download Full-text

Retrofit Design Verification via In-Service Monitoring over the Internet: A Case Study

Information Processing in Civil and Structural Engineering Design ◽

10.4203/ccp.37.7.2 ◽

2009 ◽

Author(s):

S.S. Chen ◽

C.M. Ballard

Keyword(s):

The Internet ◽

Design Verification ◽

Service Monitoring ◽

Retrofit Design

Download Full-text

Analysing Ways to Achieve a New Urban Agenda-Based Sustainable Metropolitan Transport

Sustainability ◽

10.3390/su11030813 ◽

2019 ◽

Vol 11 (3) ◽

pp. 813 ◽

Cited By ~ 2

Author(s):

Romanika Okraszewska ◽

Kazimierz Jamroz ◽

Lech Michalski ◽

Joanna Żukowska ◽

Krzysztof Grzelec ◽

...

Keyword(s):

Transport System ◽

System Approach ◽

Metropolitan Areas ◽

Sustainable Urban Development ◽

Transport Systems ◽

Spatial Structures ◽

New Vision ◽

Different Levels ◽

New Urban Agenda

The New Urban Agenda (NUA) sets a new vision of sustainable urban development to help cities deal with the challenges of changing demography. While numerous articles have addressed how the NUA can be implemented at different levels and in different areas, this article points out the potential limitations in incorporating the NUA into metropolitan transport policies. The relevance of the limitations can be seen in three main fields: incompatibility between legal and financial frameworks and the functional and spatial structures of metropolitan areas, the characteristics of how transport systems are developed as part of metropolitan functional and spatial structures and the inconsistency and inadequacy between political declarations (NUA) which are based on ideas and programmes and the objectives of strategy papers which are based on diagnoses, data analyses and predictive models. The authors put forward the thesis that by concentrating on cities, the NUA leaves out some of the characteristics of metropolitan areas. As a consequence, although the NUA can work successfully for metropolitan cores, outer areas are not covered directly. In order to verify the thesis, a comparison was made between the NUA’s transport system approach with experience from running and planning metropolitan transport systems described in the literature. The results of the comparative analysis, confirmed the thesis of the authors and made it possible to formulate general conclusions regarding the specific conditions of metropolitan areas for the running and developing of the transport system. By using explanatory case study of Tri-City Metropolitan Area (TMA) and the Strategy for Transport and Mobility for TMA 2030 general assumptions were confirmed and explain in more details. The NUA and STM were compared for how they address the main areas of intervention related to transport. Differences were identified and recommendations were formulated, should the documents be updated. The STM must be updated in areas such as equity and climate change mitigations while the NUA should be expanded to cover the specific conditions that prevail in functional and metropolitan areas.

Download Full-text

Silo with a Corrugated Sheet Wall

Slovak Journal of Civil Engineering ◽

10.2478/sjce-2013-0013 ◽

2013 ◽

Vol 21 (3) ◽

pp. 19-30 ◽

Cited By ~ 3

Author(s):

Csaba Németh ◽

Ján Brodniansky

Keyword(s):

Computational Models ◽

Bending Moment ◽

Physical Models ◽

Experimental Measurements ◽

Bending Moments ◽

Bulk Materials ◽

Production And Consumption ◽

Thin Walled ◽

The Mathematical Model

Abstract Silos and tanks are currently being used to create reserves of stored materials. Their importance is based on balancing the production and consumption of bulk materials to establish an adequate reserve throughout the year. The case study introduced within the framework of this paper focuses on thin-walled silos made of corrugated sheets and on an approach for designing these types of structures. The storage of bulk materials causes compression or tensile stresses in the walls of a silo structure. The effect of a frictional force in the silo walls creates an additional bending moment in a wave, which ultimately affects the resulting bending moments. Several mathematical and physical models were used in order to examine various types of loading and their effects on a structure. Subsequently, the accuracy of the computational models was verified by experimental measurements on a grain silo in Bojničky, Slovakia. A comparison of the experimental and mathematical models shows a reasonable match and confirms the load specifications, while indicating that the mathematical model was correct.

Download Full-text