Search results for "planning."
showing 10 items of 3916 documents
The effect of agglomeration economies and geography on the survival of accommodation businesses in Sicily
2021
The study explores the geographical pattern of the accommodation industry in the Italian insular region of Sicily, focusing on the determinants of the risk of market exit. We adopt a standard framework of business survival analysis where agglomeration economies play an important role. We then extend the analysis by considering the role of geography to explore whether the risk of market exit depends on nearness to desirable amenities. The geography is here measured by the distance from the coast and the altitude of the place where the firm is located. When we look at the entire population of accommodation firms that started between 2010 and 2014, we find evidence that the risk of failure inc…
Cambios en la demanda y estrategias de adaptación en producciones agrarias sostenibles durante el confinamiento por la pandemia COVID-19
2023
La pandemia ha supuesto un verdadero shock, también en los mercados de productos agrícolas sostenibles. En este artículo se analizan, en primer lugar y a través de datos secundarios, los cambios en los patrones de consumo de productos agrícolas frescos de los españoles durante la pandemia por la COVID-19, así como los cambios en la tipología de canales y tipos de establecimientos de compra. En segundo lugar, con datos primarios (encuestas y entrevistas) se analiza la percepción que una muestra de agricultores valencianos (vinculados a producciones sostenibles) tiene respecto del impacto del confinamiento, y sus estrategias de respuesta y adaptación. Los resultados ponen de relieve, por el l…
Evaluating functional connectivity in a small agricultural catchment under contrasting flood events by using UAV
2020
Die landwirthschaftlich-chemische Versuchsstation am Polytechnikum zu Riga, Lief. I
1875
Bericht über die Thätigkeit in den Jahren 1872/73 und 1873/74
Researches Regarding the Species Diabrotica Virgifera Virgifera Le Conte in Sibiu County
2010
From the very beginning of the recording of its appearance in Europe as well as in
 our country the published material emphasized the harmful potential of the pest Diabrotica virgifera
 virgifera also drawing the attention to the scientific world and to the farmers as well upon this factor
 of reduction of the production of corn.
 In Sibiu County this species was first recorded in 2001, coming from West, at the border with
 Alba County. The first gatherings were done in Miercurea Sibiului. The investigation was done during
 2001–2009 concerning in: monitoring the adults and the larvae, the identification of the attacked
 plants, the way of harming both for…
Studies on Using Sugar Beet for Bio-Ethanol for Vehicle Motors
2011
The paper presents some researches on using sugar beet for producing bio-ethanol, considering the advantages which this raw material presents compared to other materials from which bio-ethanol can be obtained. One of the reasons of using bio-ethanol for motors as a fuel is the goal to reduce of 20% of greenhouse gases and it is established that the emissions of CO2 are much reduced in the case of bio-ethanol than that of conventional fuels.
Penser la ville durable : positionner la modélisation et l’évaluation des territoires dans les processus d’aménagement
2015
National audience; Les politiques d’aménagement du territoire sont guidées depuis deux décennies par les objectifs du développement durable. Én¬oncé dans le rapport de G.H. Brundtland (1987) réalisé pour le compte des Nations-Unies, l’expression « développement du¬rable » définit en effet un « développe¬ment qui répond au besoin du présent sans compromettre la capacité des généra¬tions futures à satisfaire leurs propres be¬soins ». Trois sphères distinctes mais qui se chevauchent sont identifiées, dans les¬quelles les principes de développement du¬rable doivent être appliqués : l’économique, le social et l’environnemental, la combi¬naison des trois faisant théoriquement at¬teindre le niveau…
Medio físico y características constructivas de galerías drenantes de aguas subálveas en ambientes semiáridos del sudeste español y Túnez
2021
Draining galleries are water collection systems that occurs frequently in various geomorphic contexts of semi-arid environments. In this article, we study those that take advantage of subalveal waters by means of different construction techniques, mainly 'cimbras' and 'cimbra-zanjas'. A comparison has been made between the Tunisian galleries and those of the Spanish SE that have these two characteristics: the exploitation of subsubalveal waters and surface detritic aquifers, and rainfall characteristics of semi-arid climates, specifically annual total rainfall between 300 and 400 mm. The work analyzes the environmental contexts of the selected galleries, especially geology, geomorphology, r…
Estimating economic severity of Air Traffic Flow Management regulations
2021
The development of trajectory-based operations and the rolling network operations plan in European air traffic management network implies a move towards more collaborative, strategic flight planning. This opens up the possibility for inclusion of additional information in the collaborative decision-making process. With that in mind, we define the indicator for the economic risk of network elements (e.g., sectors or airports) as the expected costs that the elements impose on airspace users due to Air Traffic Flow Management (ATFM) regulations. The definition of the indicator is based on the analysis of historical ATFM regulations data, that provides an indication of the risk of accruing dela…
Airport development and metropolitan planning in Hong Kong
2019
Hong Kong, one of the world’s major international airports, has responded to the challenge of congestion of an airport too small for a growing air traffic by building a new efficient airport, thus opening the way for a reconversion of the old airport site. This has allowed Hong Kong to strengthen its position as a global hub for air freight and international passengers, while being a core element of the ongoing spatial restructuration of the Pearl River delta, including a new town next to the airport and an intermodal center at the end of the HKMZ bridge-tunnel from Macau.