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Article
Publication date: 3 April 2018

Mansoureh Gholami, Majid Mofidi Shemirani and Rima Fayaz

The purpose of this paper is to present a methodology to quantify the solar energy potential for applying photovoltaic systems and find an efficient geometry for urban blocks to…

Abstract

Purpose

The purpose of this paper is to present a methodology to quantify the solar energy potential for applying photovoltaic systems and find an efficient geometry for urban blocks to obtain a better quality of daylighting in terms of continuous daylight autonomy (DA) and spatial DA with less energy consumption.

Design/methodology/approach

The paper is based on a complete simulation of the topography and micro-climate of the area under study. Simulations were performed using ArcGIS and Rhinoceros and urban daylight (UD) and urban modeling interface plugin for a neighborhood in the region of Narmak in Tehran, Iran. Five configurations of a neighborhood were compared using simulations.

Findings

It was found that the impact of the geometrical form on daylight gain and energy consumption is significant and the terraced model is the most suitable form for obtaining a constant floor area ratio. Furthermore, it is an optimal form of urban blocks to gain the most energy through photovoltaic systems in the neighborhood as it would be able to satisfy about 42 percent of the energy needs.

Originality/value

Planning to achieve sufficient energy factors in cities is a difficult task, since urban planners often do not have adequate technical knowledge to measure the contribution of solar energy in urban plans and this paper aims to introduce a comprehensive modeling methodology by which the urban energy planning can be used and understood in the urban context to make it completely clear as a strategy of implementation.

Details

Smart and Sustainable Built Environment, vol. 7 no. 1
Type: Research Article
ISSN: 2046-6099

Keywords

Article
Publication date: 11 June 2018

Silvia Ronchi, Stefano Salata and Andrea Arcidiacono

The spatial development of urban areas affects the characteristics of landscape as well as people’s aesthetic perception of it. Specifically, sprawl results in an urban morphology…

Abstract

Purpose

The spatial development of urban areas affects the characteristics of landscape as well as people’s aesthetic perception of it. Specifically, sprawl results in an urban morphology which is diametrically opposed to the compact city model and which assumes several kinds of patterns: for example “striped”, “ribbon” or “leapfrogged” urban development. Assessing urban morphology in spatial terms is crucial to urban policy, while landscape metrics are the key to a comprehensive understanding of different urban development patterns. The purpose of this paper to design and test an urban morphology indicator (UMI) for the Lombardy Regional Landscape Plan.

Design/methodology/approach

The paper describes an UMI that can be used to identify the heterogeneity of built-up patterns according to urban porosity, fragmentation and patch shape. This UMI is a result of Esri ArcGIS 10.3 “grouping analysis” which works by applying a spatial statistical metric for clustering geometries in a given geographical area.

Findings

Morphological analysis was used in regional urban development policies with a view to minimising impact on surrounding ecosystems and preserving the natural environment and landscape. It defines 28 different urban morphology patterns in the region, which are divided into systems, polarities and urbanised units.

Originality/value

The proposed methodology differs from those traditionally used in qualitative/descriptive landscape planning and supports the identification of morphological features with quantitative statistical and spatial data, allowing a fine-scale assessment of complex metrics.

Details

Management of Environmental Quality: An International Journal, vol. 29 no. 4
Type: Research Article
ISSN: 1477-7835

Keywords

Article
Publication date: 28 April 2020

Nandakishor Sirdeshpande and Vishwanath Udupi

Wireless communication channel provides a wide area of applications in the field of communication, distributed sensor network and so on. The prominence of the wireless…

Abstract

Purpose

Wireless communication channel provides a wide area of applications in the field of communication, distributed sensor network and so on. The prominence of the wireless communication channel is because of its robust nature and the sustainability for the precise ranging and the localization. The precision and accuracy of the wireless communication channel largely depend on the localization. The development of the wireless communication channel with improved benefits needs the accurate channel model.

Design/methodology/approach

This paper characterizes the tangential path loss model in the WINNER based wireless communication channel model. The measurements taken in the WINNER channel model are compared with the tangential path loss characterized WINNER Channel model.

Findings

The model operates well over the varying antenna orientations, measurement condition and the propagation condition. The proposed tangential path loss model is performing well over the various outdoor scenarios.

Originality/value

The proposed characterization shows change in the small-scale parameters (SSP), such as power, delay, angle of arrival and angle of departure as well as the large-scale parameters (LSP), such as RMS delay spread, shadowing, path loss and Ricean factor associated with the model.

Details

Data Technologies and Applications, vol. 54 no. 3
Type: Research Article
ISSN: 2514-9288

Keywords

Article
Publication date: 6 July 2023

Omprakash Ramalingam Rethnam and Albert Thomas

The building sector contributes one-third of the energy-related carbon dioxide globally. Therefore, framing appropriate energy-related policies for the next decades becomes…

Abstract

Purpose

The building sector contributes one-third of the energy-related carbon dioxide globally. Therefore, framing appropriate energy-related policies for the next decades becomes essential in this scenario to realize the global net-zero goals. The purpose of the proposed study is to evaluate the impact of the widespread adoption of such guidelines in a building community in the context of mixed-mode buildings.

Design/methodology/approach

This study decentralizes the theme of improving the energy efficiency of the national building stock in parcels by proposing a community-based hybrid bottom-up modelling approach using urban building energy modelling (UBEM) techniques to analyze the effectiveness of the community-wide implementation of energy conservation guidelines.

Findings

In this study, the UBEM is developed and validated for the 14-building residential community in Mumbai, India, adopting the framework. Employing Energy Conservation Building Code (ECBC) compliance on the UBEM shows an energy use reduction potential of up to 15%. The results also reveal that ECBC compliance is more advantageous considering the effects of climate change.

Originality/value

In developing countries where the availability of existing building stock information is minimal, the proposed study formulates a holistic framework for developing a detailed UBEM for the residential building stock from scratch. A unique method of assessing the actual cooling load of the developed UBEM is presented. A thorough sensitivity analysis approach to investigate the effect of cooling space fraction on the energy consumption of the building stock is presented, which would assist in choosing the appropriate retrofit strategies. The proposed study's outcomes can significantly transform the formulation and validation of appropriate energy policies.

Details

Smart and Sustainable Built Environment, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2046-6099

Keywords

Article
Publication date: 1 August 1992

Nancy Melin Nelson

GTE's Smart CampusSM. Today's college‐bound students are growing up in a quickly evolving world of electronic information access. From the telephone, radio, cable TV, and personal…

Abstract

GTE's Smart CampusSM. Today's college‐bound students are growing up in a quickly evolving world of electronic information access. From the telephone, radio, cable TV, and personal computers, they are already accustomed to receiving and interacting with electronic data through these communications resources.

Details

Academic and Library Computing, vol. 9 no. 8
Type: Research Article
ISSN: 1055-4769

Article
Publication date: 23 April 2020

Ajree Ducol Malawani, Achmad Nurmandi, Eko Priyo Purnomo and Taufiqur Rahman

This paper aims to examine tweet posts regarding Typhoon Washi to contend the usefulness of social media and big data as an aid of post-disaster management. Through topic modelling

Abstract

Purpose

This paper aims to examine tweet posts regarding Typhoon Washi to contend the usefulness of social media and big data as an aid of post-disaster management. Through topic modelling and content analysis, this study examines the priorities of the victims expressed in Twitter and how the priorities changed over a year.

Design/methodology/approach

Social media, particularly Twitter, was where the data gathered. Using big data technology, the gathered data were processed and analysed according to the objectives of the study. Topic modelling was used in clustering words from different topics. Clustered words were then used for content analysis in determining the needs of the victims. Word frequency count was also used in determining what words were repeatedly used during the course period. To validate the gathered data online, government documents were requested and concerned government agencies were also interviewed.

Finding

Findings of this study argue that housing and relief goods have been the top priorities of the victims. Victims are seeking relief goods, especially when they are in evacuation centres. Also, the lack of legal basis hinders government officials from integrating social media information unto policymaking.

Research limitation

This study only reports Twitter posts containing keywords either, Sendong, SendongPH, Washi or TyphoonWashi. The keywords were determined based on the words that trended after Typhoon Washi struck.

Practical implication

For social media and big data to be adoptable and efficacious, supporting and facilitating conditions are necessary. Structural, technical and financial support, as well as legal framework, should be in place. Maintaining and sustaining positive attitude towards it should be taken care of.

Originality/value

Although many studies have been conducted on the usefulness of social media in times of disaster, many of these focused on the use of social media as medium that can efficiently spread information, and little has been done on how the government can use both social media and big data in collecting and analysing the needs of the victims. This study fills those gaps in social big data literature.

Details

Transforming Government: People, Process and Policy, vol. 14 no. 2
Type: Research Article
ISSN: 1750-6166

Keywords

Article
Publication date: 1 January 1989

Telecoms Ministers get ready for 1992. An important step towards the Common Market of 1992 was taken last summer by the Council of Telecommunications Ministers, the first formal…

Abstract

Telecoms Ministers get ready for 1992. An important step towards the Common Market of 1992 was taken last summer by the Council of Telecommunications Ministers, the first formal council devoted to the telecommunications sector since the creation of the European Community. Meeting in Luxembourg, the Ministers gave strong support to the major policy objectives set out in the EC's Green Paper on the telecommunications industry and then added further objectives of their own that could have an immediate impact on European citizens and telecommunications organisations.

Details

Online Review, vol. 13 no. 1
Type: Research Article
ISSN: 0309-314X

Article
Publication date: 1 February 1991

Tech aide to Romania Sighisoara, Romania, could become a hub of information for doctors and fanners all over Romania. A state‐of‐the‐art computing laboratory is being built there…

Abstract

Tech aide to Romania Sighisoara, Romania, could become a hub of information for doctors and fanners all over Romania. A state‐of‐the‐art computing laboratory is being built there which, when finished, will house some 20 CD‐ROM drives and a library of databases on health, agriculture and nutrition. Because the laboratory is centrally located information will be disseminated from there to the rest of the country.

Details

The Electronic Library, vol. 9 no. 2
Type: Research Article
ISSN: 0264-0473

Article
Publication date: 11 September 2017

Vera M. Novak, Nieves Fernandez-Anez and Koichiro Shiraishi

Planning for the future can become mired in fixing the problems of the present. To create alternative solutions, planning must break free of the boundaries and assumptions of…

Abstract

Purpose

Planning for the future can become mired in fixing the problems of the present. To create alternative solutions, planning must break free of the boundaries and assumptions of existing paradigms. The purpose of this paper is to explore an alternative way of thinking that reframes the issues from problems of “what is” to the potential of “what could be” in the context of socio-ecological resilience.

Design/methodology/approach

A case study reviews the limitations revealed during a traditional problem-solving exercise on the topic of Coastal Eco-Cities, as well as the innovations resulting from the rethinking of the issues through the lens of the alternative paradigm.

Findings

A key finding is the significance of linguistic modality, shifting from objective expressions to subjective dialogue.

Originality/value

The originality of this approach is the emphasis on the framing of the problem before the development of the solution and the methodological implications of this early dialogue.

Details

International Journal of Disaster Resilience in the Built Environment, vol. 8 no. 4
Type: Research Article
ISSN: 1759-5908

Keywords

Open Access
Article
Publication date: 30 April 2012

Afzal Mohammad Khaled and Yong Jin Kim

Logistical facility location decisions can make a crucial difference in the success or failure of a company. Geographical Information Systems (GIS) have recently become a very…

Abstract

Logistical facility location decisions can make a crucial difference in the success or failure of a company. Geographical Information Systems (GIS) have recently become a very popular decision support system to help deal with facility location problems. However, until recently, GIS methodologies have not been fully embraced as a way to deal with new facility location problems in business logistics. This research makes a framework for categorizing empirical facility location problems based on the intensity of the involvement of GIS methodologies in decision making. This framework was built by analyzing facility location models and GIS methodologies. The research results revealed the depth of the embracement of GIS methodologies in logistics for determining new facility location decisions. In the new facility location decisions, spatial data inputs are almost always coupled with the visualization of the problems and solutions. However, the usage of GIS capability solely (i.e. suitability analysis) for problem solving has not been embraced at the same level. In most cases, the suitability analysis is used together with special optimization models for choosing among the multiple alternatives.

Details

Journal of International Logistics and Trade, vol. 10 no. 1
Type: Research Article
ISSN: 1738-2122

Keywords

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