scholarly journals Analysis of Small-Scale Fading Distributions in Vehicle-to-Vehicle Communications

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Vicent M. Rodrigo-Peñarrocha ◽  
Juan Reig ◽  
Lorenzo Rubio ◽  
Herman Fernández ◽  
Susana Loredo
Keyword(s):  
Goodness Of Fit ◽  
Urban Environments ◽  
The Other ◽  
Small Scale ◽  
Channel Measurements ◽  
Experimental Distribution ◽  
Vehicle To Vehicle ◽  
Kolmogorov Smirnov ◽  
Inference Techniques ◽  
The City

This work analyzes the characteristics of the small-scale fading distribution in vehicle-to-vehicle (V2V) channels. The analysis is based on a narrowband channel measurements campaign at 5.9 GHz designed specifically for that purpose. The measurements were carried out in highway and urban environments around the city of Valencia, Spain. The experimental distribution of the small-scale fading is compared to several analytical distributions traditionally used to model the fast fading in wireless communications, such as Rayleigh, Nakagami-m, Weibull, Rice, andα-μdistributions. The parameters of the distributions are derived through statistical inference techniques and their goodness-of-fit is evaluated using the Kolmogorov-Smirnov (K-S) test. Our results show that theα-μdistribution exhibits a better fit compared to the other distributions, making its use interesting to model the small-scale fading in V2V channels.

scholarly journals Possibilities to Apply the Urban Acupuncture Concept in Kaunas: Social Aspect

2018 ◽  
Vol 13 ◽  
pp. 18-27
Author(s):  
Aurelija Daugelaite ◽  
Indre Gražulevičiūte-Vileniške ◽  
Mantas Landauskas
Keyword(s):  
Public Space ◽  
Public Art ◽  
Public Spaces ◽  
Urban Environments ◽  
Street Art ◽  
Small Scale ◽  
Ecological Design ◽  
Social Aspect ◽  
Wide Range ◽  
The City

The concept of urban acupuncture, which has been gaining ground in recent decades, is based on the activation and revitalization of urban environments using small architectural or landscape architectural interventions in precise carefully selected locations of urban fabric. However, the rapid and unexpected design solutions of urban acupuncture, based on ecological design, nature dynamics, street art, material re-use, can cause different social and psychological reactions of urban population and these reactions may vary depending on cultural contexts. Consequently, in order to implement successful urban acupuncture projects in Lithuanian cities, it is very important to find out public opinion and priorities in the fields of public space management, aesthetics, and public art. The aim of the research was to analyze the opinion of Kaunas city residents regarding these issues. For this purpose, a sociological questionnaire survey was used. The questionnaire containing 20 questions was designed, with the aim to find out the trends of use of public spaces in the city, the attitudes of residents towards street art and other small-scale initiatives in public spaces implemented in the recent years, possibilities of creating landscape architecture based on ecological ideas in urban environment, the attitude of inhabitants towards community spaces and community space design in the city, etc. 100 residents of Kaunas participated in this online administered survey. The survey has demonstrated general positive attitude towards contemporary design trends of public spaces and public art; however, the surveyed population expressed preferences towards fully equipped public spaces offering possibilities for a wide range of activities.

scholarly journals Urban Soundscapes in the Imaginaries of Native Digital Users: Guidelines for Soundscape Design

2022 ◽  
Vol 14 (2) ◽  
pp. 632
Author(s):  
Jean-Dominique Polack ◽  
Philippe Taupin ◽  
Hyun In Jo ◽  
Jin Yong Jeon
Keyword(s):  
Conceptual Model ◽  
Narrative Analysis ◽  
Urban Environments ◽  
The Other ◽  
Semantic Model ◽  
Pilot Experiment ◽  
Cultural Activities ◽  
Planning And Design ◽  
The City ◽  
Selection Of

We present an experiment run along the lines of a pilot experiment in China based on collages and narratives to illustrate the participants’ experience with urban sceneries. Its aim was to develop a conceptual model based on narrative analysis that linked objects of the environment to the perceived properties of the soundscape. Participants in groups of two were free to clip any image they wanted from a selection of magazines—the same for all groups within each country—and free to add comments or drawings on their collages. Then, they had to present their collages to the other participants, and the presentations were recorded and transcribed. The structural semantic model that underlies the descriptions of the collages and narratives is presented. The results of the analysis were comparable with previous studies, since ideal urban environments should be calm, quiet and green, but urban environments should also promote cultural activities and the possibility to escape outside the city. The analysis also allowed for attaining the emotions created by soundscapes. Thus, the semantic model can be used as a conceptual model for a soundscape, from which guidelines for soundscape planning and design can be derived, as well as suggestions for innovative soundscapes.

scholarly journals Green Infrastructure and Biophilic Urbanism as Tools for Integrating Resource Efficient and Ecological Cities

2021 ◽  
Vol 6 (1) ◽  
pp. 75-88 ◽  
Author(s):  
Giles Thomson ◽  
Peter Newman
Keyword(s):  
Green Infrastructure ◽  
Urban Areas ◽  
Urban Environments ◽  
The Other ◽  
Ecological Approach ◽  
Urban Water ◽  
Urban Nature ◽  
Natural Landscape ◽  
The City ◽  
Different Parts

In recent decades, the concept of resource efficient cities has emerged as an urban planning paradigm that seeks to achieve sustainable urban environments. This focus is upon compact urban environments that optimise energy, water and waste systems to create cities that help solve climate change and other resource-based sustainability issues. In parallel, there has been a long-standing tradition of ecological approaches to the design of cities that can be traced from Howard, Geddes, McHarg and Lyle. Rather than resource efficiency, the ecological approach has focused upon the retention and repair of natural landscape features and the creation of green infrastructure (GI) to manage urban water, soil and plants in a more ecologically sensitive way. There is some conflict with the resource efficient cities and ecological cities paradigms, as one is pro-density, while the other is anti-density. This article focusses upon how to integrate the two paradigms through new biophilic urbanism (BU) tools that allow the integration of nature into dense urban areas, to supplement more traditional GI tools in less dense areas. We suggest that the theory of urban fabrics can aid with regard to which tools to use where, for the integration of GI and BU into different parts of the city to achieve <em>both</em> resource efficient and ecological outcomes, that optimise energy water and waste systems, <em>and</em> increase urban nature.

scholarly journals Urban ecosemiotics of trees: Why the ecological alien species paradigm has not gained ground in cities?

2018 ◽  
Vol 46 (2/3) ◽  
pp. 319-342 ◽  
Author(s):  
Riin Magnus ◽  
Tiit Remm
Keyword(s):  
Alien Species ◽  
Biodiversity Loss ◽  
Urban Environments ◽  
The Other ◽  
Cultural Model ◽  
Nature Protection ◽  
Semiotic System ◽  
Natural Habitats ◽  
The City

The transportation and translocation of species beyond their natural habitats is considered to be one of the major causes of biodiversity loss these days. Concerns are growing also about urbanization and the resulting destruction of natural habitats. At the same time, the integration of urban environments into nature protection efforts has brought along the intent to apply the ecological alien species paradigm in cities. Yet, as the practices of urban landscaping demonstrate, this objective has not been achieved. In this article, we propose that the reasons behind it are largely related to the specifics of the city as a semiotic system. Multiplicity of codes and subjects of various origins is contested by the ecological alien species paradigm, yet characteristic of the urban semiotic environment. The city often serves the function of a cultural model, embodying the principles of setting the borders between Self and the Other. Also in this case, the ecological alien species paradigm has to face a different complex of meanings attributed to the Other. We demonstrate how two different models of the city are expressed in the interpretations of alien trees by using pyramid oaks and poplars in Estonia as an example.

scholarly journals Fading Evaluation in the 60 GHz Band in Line-of-Sight Conditions

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
J. Reig ◽  
M.-T. Martínez-Inglés ◽  
L. Rubio ◽  
V.-M. Rodrigo-Peñarrocha ◽  
J.-M. Molina-García-Pardo
Keyword(s):  
Cumulative Distribution Function ◽  
Cumulative Distribution ◽  
Line Of Sight ◽  
Small Scale ◽  
60 Ghz ◽  
Propagation Characteristics ◽  
Lower Tail ◽  
Experimental Distribution ◽  
Estimated Parameters ◽  
Kolmogorov Smirnov

An exhaustive analysis of the small-scale fading amplitude in the 60 GHz band is addressed for line-of-sight conditions (LOS). From a measurement campaign carried out in a laboratory, we have estimated the distribution of the small-scale fading amplitude over a bandwidth of 9 GHz. From the measured data, we have estimated the parameters of the Rayleigh, Rice, Nakagami-m, Weibull, andα-μdistributions for the small-scale amplitudes. The test of Kolmogorov-Smirnov (K-S) for each frequency bin is used to evaluate the performance of such statistical distributions. Moreover, the distributions of the main estimated parameters for such distributions are calculated and approximated for lognormal statistics in some cases. The matching of the above distributions to the experimental distribution has also been analyzed for the lower tail of the cumulative distribution function (CDF). These parameters offer information about the narrowband channel behavior that is useful for a better knowledge of the propagation characteristics at 60 GHz.

Minimetrò in Perugia as leverage for urban regeneration

TERRITORIO ◽  
2020 ◽  
pp. 148-163
Author(s):  
Luca Fondacci
Keyword(s):  
Urban Regeneration ◽  
Urban Environments ◽  
Low Carbon ◽  
Sustainable Mobility ◽  
Field Surveys ◽  
Peripheral Area ◽  
Alternative Means ◽  
Considerable Impact ◽  
The City ◽  
Historical Centre

In the 1970s, the fragile historical centre of the city of Perugia was a key area where the binomial of sustainable mobility and urban regeneration was developed and applied. At the turn of the xxi century, the low carbon automatic people-mover Minimetrò broadened that application from the city's historical centre to the outskirts, promoting the enhancement of several urban environments. This paper is the outcome of an investigation of original sources, field surveys and direct interviews, which addresses the Minimetrò as the backbone of a wide regeneration process which has had a considerable impact on the economic development of a peripheral area of the city which was previously devoid of any clear urban sense. The conclusion proposes some solutions to improve the nature of the Minimetrò as an experimental alternative means of transport.

Pengaruh Kotbah, Musik Gereja Dan Fasilitas Gereja Terhadap Tingkat Kehadiran Jemaat

2016 ◽  
Vol 1 (1) ◽  
pp. 1-15
Author(s):  
Frederich Oscar Lontoh
Keyword(s):  
Regression Analysis ◽  
Multiple Regression Analysis ◽  
Church Music ◽  
Pearson Correlation ◽  
Descriptive Analysis ◽  
Target Population ◽  
The Other ◽  
Pearson Correlation Coefficient ◽  
Christian Church ◽  
The City

This research is titled " The influence of sermon, church music and church facilities on the level of attendance”. The purpose of research is to identify and analyze whether sermon, church music and church facilities have influence on the the level of attendance. The target population in this study is a Christian church members who live in the city of Surabaya.. Sample required is equal to 47 respondents. Through sampling stratified Random techniques.These influence was measured using Pearson correlation coefficient and multiple regression analysis, t-test and analysis of variance. Descriptive  analysis  were taken to analyze the level of attendance according to demographic groups.The hypothesis in this study are the sermon, church music and church facilities have positive and significant on the level of attendance. The results showed that collectively, there are positive and significant correlation among the sermon, church music and church facilities on the level of attendance  96,2%. It means that 96,2 % of level of attendance influenced by sermon, church music and church facilities and the other 28,9% by others. All of the variable partially have significant correlation to level of attendance.

KONSEP DIRI “ I “ DAN “ME” TOKOH HIROKO DALAM NOVEL NAMAKU HIROKO KARYA NH.DINI

2012 ◽  
Vol 5 (2) ◽  
pp. 109
Author(s):  
Besin Gaspar
Keyword(s):  
Point Of View ◽  
The Other ◽  
Self Concept ◽  
The Novel ◽  
Main Character ◽  
Fictional Character ◽  
Social Customs ◽  
The Social ◽  
The Village ◽  
The City

This research deals with the development of  self concept of Hiroko as the main character in Namaku Hiroko by Nh. Dini and tries to identify how Hiroko is portrayed in the story, how she interacts with other characters and whether she is portrayed as a character dominated by ”I” element or  ”Me”  element seen  from sociological and cultural point of view. As a qualitative research in nature, the source of data in this research is the novel Namaku Hiroko (1967) and the data ara analyzed and presented deductively. The result of this analysis shows that in the novel, Hiroko as a fictional character is  portrayed as a girl whose personality  develops and changes drastically from ”Me”  to ”I”. When she was still in the village  l iving with her parents, she was portrayed as a obedient girl who was loyal to the parents, polite and acted in accordance with the social customs. In short, her personality was dominated by ”Me”  self concept. On the other hand, when she moved to the city (Kyoto), she was portrayed as a wild girl  no longer controlled by the social customs. She was  firm and determined totake decisions of  her won  for her future without considering what other people would say about her. She did not want to be treated as object. To put it in another way, her personality is more dominated by the ”I” self concept.

STUDY OF ORNAMENTS IN HUNTO SULTAN AMAY MOSQUE GORONTALO

ARTic ◽  
2019 ◽  
Vol 4 ◽  
pp. 167-176
Author(s):  
Risti Puspita Sari Hunowu
Keyword(s):  
Qualitative Method ◽  
The Other ◽  
Visual Form ◽  
Research Material ◽  
Other Hand ◽  
The World ◽  
Existing Form ◽  
The City ◽  
Dutch Colonial

This research is aimed at studying the Hunto Sultan Amay Mosque located in Gorontalo City. Hunto Sultan Amay Mosque is the oldest mosque in the city of Gorontalo The Hunto Sultan Amay Mosque was built as proof of Sultan Amay's love for a daughter and is a representation of Islam in Gorontalo. Researchers will investigate the visual form of the Hunto Sultan Amay Mosque which was originally like an ancient mosque in the archipelago. can be seen from the shape of the roof which initially used an overlapping roof and then converted into a dome as well as mosques in the world, we can be sure the Hunto Sultan Amay Mosque uses a dome roof after the arrival of Dutch Colonial. The researcher used a qualitative method by observing the existing form in detail from the building of the mosque with an aesthetic approach, reviewing objects and selecting the selected ornament giving a classification of the shapes, so that the section became a reference for the author as research material. Based on the analysis of this thesis, the form  of the Hunto Sultan Amay mosque as well as the mosques located in the archipelago and the existence of ornaments in the Hunto Sultan Amay Mosque as a decorative structure support the grandeur of a mosque. On the other hand, Hunto Mosque ornaments reveal a teaching. The form of a teaching is manifested in the form of motives and does not depict living beings in a realist or naturalist manner. the decorative forms of the Hunto Sultan Sultan Mosque in general tend to lead to a form of flora, geometric ornaments, and ornament of calligraphy dominated by the distinctive colors of Islam, namely gold, white, red, yellow and green.

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