Search results for " Transformation"
showing 10 items of 1043 documents
Citrus biotechnology
2020
Agricultural crops that can better withstand the changing climatic and pathogen landscape have been produced through natural selection throughout the millennia and, in recent years, through the process of human-assisted plant breeding and selection. However, a lack of genetic diversity in many commercially cultivated crops (due to monoculture) has made them more vulnerable to biotic and abiotic stresses (Esquinas-Alcazar, 2005; Keneni et al., 2012). Citrus, belonging to the Rutaceae family, is one of the most important commercial woody fruit crops in the tropical and subtropical areas of the world. The origin of citrus is traced back to parts of tropical and subtropical Southeast Asia (Wu e…
Genotoxicity of Terpenes Present in Wastewater of a Citrus Transformation Factory in Bacterial and Mammalian Cells and Effectiveness of Photocatalyti…
2010
The aim of this work was to compare the genotoxic responses of mixtures of terpenes present in wastewaters of a citrus transformation factory with the genotoxicity of the individual compounds. Samplings of wastewater collected before (untreated sample) and past water purification by biological method (treated sample) were analyzed using Solid Phase Micro-extraction (SPME) followed by GC analyses. The chromatograms showed in all effluents the presence of four terpenes: pinene, -pinene, 3-carene, D-limonene. The concentrations of terpenes in the untreated sample were 1–3 orders of magnitude higher than in the treated sample. Genotoxicity was evaluated in the Salmonella reversion assay (Ames t…
Sistemi cibernetici per la ri-definizione dello spazio architettonico. Cedric Price e i laboratori del cambiamento
2020
This paper investigates the introduction of the cybernetic approach in architecture, through the key-role of N. Wiener, G. Pask and their influence on the projects of Cedric Price in the Sixties. The analysis of two of his most representative projects, such as the Fun Palace and the Generator, aims to individuate the informatics influence brought to the spatial composition. Furthermore, the article will clarify the visionary though of the British architect concerning the impact of digital infrastructures on the prefiguration of the most recent responsive and interactive approaches in architecture.
Las grandes Exposiciones en Europa: 1992-2002. Efectos duraderos sobre la ciudad y apropiación por parte de la ciudadanía.
2012
This paper studies the influence of great contemporary Expositions on the transformation of cities and of territories, developing some aspects we consider relevant of these events: their growing relevance in urban contemporary politics and the urban and architectural project as creator of the regeneration of abandoned or obsolete areas. Against the short duration of these events, the positive and negative effects, like the definition of new urban and territorial domains, the modernization of infrastructures and services, the impulse of private stakeholders toward building lands and the consolidation of City-Brand in tourism nets among others, have a much longer duration, and depend on the u…
Landscape Architecture and the Green Deal Dare: Five Successful Experiences in Urban Open Spaces
2022
The present work focuses on European cities’ environments and open spaces, aiming to demonstrate how, through landscape architecture, it is possible to respond effectively to many of the ecological and social hardships that the Green Deal aspires to alleviate. It was signed in 2019 by all of the member countries of the Union, seeks to reverse the climate change trend by establishing a series of goals for improving environmental and economic quality for 2030 and 2050 and also aims to enact social justice in rural areas and in the urban environment. Landscape architecture, which is the art of combining the physical and immaterial elements in cities’ open spaces, is taken in this w…
Paesaggi abusivi in Sicilia
2016
La questione dell’abusivismo edilizio in Sicilia si può leggere come parte di un fenomeno più vasto, quello di una espansione poco programmata e costituita da una grande quantità di edifici costruiti prevalentemente a uso residenziale, tra gli anni ‘60 e ’80, da piccoli imprenditori o da privati, e che hanno dato vita a parti di città dimensionalmente rilevanti. Questi edifici o insediamenti urbani, che si presentano ancora frammentati e incompiuti, sono riconoscibili per materiali, per povertà di linguaggio, per tecnica costruttiva prevalente. Una gran parte di essi sono stati realizzati originariamente fuori dalle regole urbanistiche prescritte, ma nel tempo hanno prodotto tessuti e paesa…
Il PAV di Torino, un parco in movimento
2013
Nella “liquidità” contemporanea, la possibilità di una cura dell’afasia diffusa impone un ripensamento che coincide con la parola ri-uso, nella sua accezione di recupero di senso, traduzione, riconversione. In una parola trasformazione. In una poetica del riuso, nella sua accezione di ritorno alla vita e trasformazione, s’inserisce il PAV - Parco Arte Vivente di Torino, con la sua architettura semi-ipogea. Attraverso l'esperienza del PAV, centro sperimentale di arte contemporanea, si analizza il ruolo del museo nei processi di trasformazione urbana. In contemporary "liquidity," the possibility of a cure for widespread aphasia imposes a rethinking that coincides with the word re-use, in its …
Stability of Microgrids: An Application of Virtual Synchronous Generator
2022
The objective of this paper is to illustrate an alternative control algorithm for power converters which have the task of introducing the energy generated by systems based on the use of renewable sources such as, photovoltaic or wind power, in to small-sized networks, microgrids. Virtual Synchronous Generator can operate both in parallel to the main network as well as in isolated and autonomous conditions (islanding-mode). The contribute of this work is to drive a consolidate approach, made in time domain, in a more flexible and less time-consuming approach based on Park transformation.
Composition of SIFT features for robust image representation
2010
In this paper we propose a novel feature based on SIFT (Scale Invariant Feature Transform) algorithm1 for the robust representation of local visual contents. SIFT features have raised much interest for their power of description of visual content characterizing punctual information against variation of luminance and change of viewpoint and they are very useful to capture local information. For a single image hundreds of keypoints are found and they are particularly suitable for tasks dealing with image registration or image matching. In this work we stretched the spatial coverage of descriptors creating a novel feature as composition of keypoints present in an image region while maintaining…
Real-time estimation of geometrical transformation between views in distributed smart-cameras systems
2008
In this paper, we present a method to automatically estimate the geometric relations among the different views of cameras with partially overlapping fields of view in a wireless video-surveillance system. The method uses the locations of the detected moving objects visible at the same time in two or more views. The correspondences among objects are found by comparing their appearance models based on dominant colour descriptors while the geometric transformation are computed iteratively and may be used to solve the consistent labelling problem. As a significant part of the processing is performed on the smart cameras, the method has been conceived by taking into account the limited resources…