scholarly journals Learning from the European City

2021 ◽  
Author(s):  
Arthur O'Looney
Keyword(s):  
European City

Thermal load in a medium-sized European city using the example of Aachen, Germany

Erdkunde ◽  
2014 ◽  
Vol 68 (2) ◽  
pp. 71-83 ◽  
Author(s):  
Mareike Buttstädt ◽  
Christoph Schneider
Keyword(s):  
Thermal Load ◽  
European City

scholarly journals Identifying and Estimating the Location of Sources of Industrial Pollution in the Sewage Network

Sensors ◽  
2021 ◽  
Vol 21 (10) ◽  
pp. 3426
Author(s):  
Magdalena Paulina Buras ◽  
Fernando Solano Donado
Keyword(s):  
Time Series ◽  
Wastewater Treatment Plants ◽  
European City ◽  
Ph Measurements ◽  
Correct Operation ◽  
Sewer Network ◽  
Detection And Identification ◽  
Pollutant Source ◽  
Contamination Event ◽  
Substance Identification

Harsh pollutants that are illegally disposed in the sewer network may spread beyond the sewer network—e.g., through leakages leading to groundwater reservoirs—and may also impair the correct operation of wastewater treatment plants. Consequently, such pollutants pose serious threats to water bodies, to the natural environment and, therefore, to all life. In this article, we focus on the problem of identifying a wastewater pollutant and localizing its source point in the wastewater network, given a time-series of wastewater measurements collected by sensors positioned across the sewer network. We provide a solution to the problem by solving two linked sub-problems. The first sub-problem concerns the detection and identification of the flowing pollutants in wastewater, i.e., assessing whether a given time-series corresponds to a contamination event and determining what the polluting substance caused it. This problem is solved using random forest classifiers. The second sub-problem relates to the estimation of the distance between the point of measurement and the pollutant source, when considering the outcome of substance identification sub-problem. The XGBoost algorithm is used to predict the distance from the source to the sensor. Both of the models are trained using simulated electrical conductivity and pH measurements of wastewater in sewers of a european city sub-catchment area. Our experiments show that: (a) resulting precision and recall values of the solution to the identification sub-problem can be both as high as 96%, and that (b) the median of the error that is obtained for the estimation of the source location sub-problem can be as low as 6.30 m.

The Dreamed European City (Urbo Kune)

Urban Europe ◽  
2016 ◽  
pp. 293-300
Author(s):  
Eberhard Van Der Laan
Keyword(s):  
European City

THE SODOMITIC REPUTATION OF WEIMAR BERLIN

Gragoatá ◽  
2004 ◽  
Vol 8 (14) ◽  
Author(s):  
Gregory Woods
Keyword(s):  
Cold War ◽  
European City ◽  
The Cold War

Weimar Berlin became the European city of erotic dreams and moral nightmares. Berlin became the symbol both of the wonderful things that could be achieved if one fought for them and of the terrible things that might happen if one did not fight against them. The openness and proliferation of Berlin's homosexual life was both a promise and a threat. Weimar's legacy was not so much the vengeful righteousness of Nazism as the efficient fervour with which queer Berlin re-established itself and thrived after the war, even at the hostile epicentre of the Cold War.------------------------------------------------------------------------------A reputação sodomita de Weimar BerlinA Berlim da República de Weimar tornou-se a cidade européia, por excelência, dos sonhos eróticos e dos pesadelos morais. Berlim tornou-se o símbolo tanto das coisas maravilhosas que poderiam ser alcançadas se se lutasse por elas, quanto das coisas terríveis que poderiam acontecer se não se lutasse contra elas. A proliferação e a visibilidade da vida homossexual berlinense era tanto uma promessa quanto uma ameaça. O legado de Weimar não foi tanto o moralismo vingativo do Nazismo, quanto o fervor eficaz com o qual a Berlim queer conseguiu se reestabelecer e prosperar depois da guerra, apesar de estar no hostil epicentro da Guerra Fria.---Artigo em inglês

scholarly journals Floristic diversity in different urban ecological niches of a southern European city

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Mirko Salinitro ◽  
Alessandro Alessandrini ◽  
Alessandro Zappi ◽  
Dora Melucci ◽  
Annalisa Tassoni
Keyword(s):  
Ecological Niches ◽  
Floristic Diversity ◽  
European City
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