Search results for "Floating"
showing 10 items of 61 documents
Exploring the Simultaneous Effect of Total Ion Concentration and K:Ca:Mg Ratio of the Nutrient Solution on the Growth and Nutritional Value of Hydrop…
2022
Nutrient-efficient plants and agricultural systems could tackle issues resulting from conventional agriculture. Spiny chicory (Cichorium spinosum L.), a very adaptive, wild edible vegetable, is gaining commercial interest as a functional food. Floating-raft hydroponics is a method commonly used for the commercial cultivation of leafy vegetables due to numerous advantages compared to soil cultivation. In this paper, the simultaneous effects of different potassium, calcium and magnesium ratios and different electrical conductivity (EC) levels on the growth and mineral composition of hydroponically grown C. spinosum were investigated. Four nutrient solutions (NS) were compared, two NS with low…
Towards the urbanisation of the Med sea: MSP challenges and opportunities for floating cities between utopia and reality
2023
Anthropogenic climate change effects push us to reimagine human life on the planet confronting extreme living conditions. Droughts, risk of submersion and flooding, saline intrusion, and land scarcity lead to more inhospitable life conditions on land. These demanding risks have led governments to envisage the displacement from the coasts of some cities at significant risk or to think of new settlements for human life, such as floating cities. Floating offshore settlements, reminiscent of the XXth-century architectural utopias, are gaining more and more popularity in contemporary debate and are, in fact, emerging realities in other parts of the globe due to advanced technology. Floating sett…
A innovative laterals hydro floating tilting systems for USV or surface nautical vehicles
2015
The proposed project shows the results obtained in the implementation and testing in lacustrine and marine environment of an innovative laterals hydro floating tilting systems control for USV or remote/autonomous surface nautical vehicles. This vehicle is based on a pending patent belonging to Palermo University (Patent Pending RM2012A000209 and RM2012A000209). The system allows, during operation as a vehicle USV, set changes sailing trim and make turns with very narrow angle with little shunting movements. In fact the main benefits obtained were able to change or adjust the navigation structure by changing the tilt of one or two hydro floating during navigation without intervening directly…
Role of low-field magnetic resonance imaging in the detection of floating meniscus sign as consequence of sport-related trauma
2010
Aim. To assess the role of magnetic resonance (MR) imaging performed with a low-field scanner in the detection of floating meniscus sign as a consequence of sports-related trauma. Methods. Retrospective review of 2436 MR knee examinations executed, in 18 months, using a low-field scanner of 0.2T, was performed by three musculoskeletal radiologists of varying experience. Diagnostic criteria to define the presence of a complete floating meniscus were as codified in the literature, lithe thickness of the fluid signal band between the meniscus and tibial plateau was comprised in the range >= 3 mm and <= 5 mm the floating meniscus was defined as partial. Patients with the sign were called to lea…
Emigracja a proces uczenia się małżonków
2022
Wstąpienie Polski do struktur Unii Europejskiej zapoczątkowało emigrację poakcesyjną Polaków, dla której charakterystyczne było pojawienie się nowych kierunków wyjazdów emigracyjnych. Jednym z najbardziej popularnych stała się Wielka Brytania. Wyjazd emigracyjny jest wydarzeniem znaczącym w biografii człowieka i całej jego rodziny. W świetle koncepcji Agnieszki Bron (2000, 2006), wiąże się on z licznymi napięciami, ambiwalencją, poczuciem bezradności i zawieszenia (tzw. floating), a jednocześnie jest wydarzeniem o potencjale edukacyjnym. Celem badań uczyniono wyjaśnienie procesu uczenia się małżonków doświadczających emigracji. Przeprowadzono badania biograficzne z wykorzystaniem autobiogra…
Wetland Restoration with Hydrophytes: A Review
2021
Restoration cases with hydrophytes (those which develop all their vital functions inside the water or very close to the water surface, e.g., flowering) are less abundant compared to those using emergent plants. Here, I synthesize the latest knowledge in wetland restoration based on revegetation with hydrophytes and stress common challenges and potential solutions. The review mainly focusses on natural wetlands but also includes information about naturalized constructed wetlands, which nowadays are being used not only to improve water quality but also to increase biodiversity. Available publications, peer-reviewed and any public domain, from the last 20 years, were reviewed. Several countrie…
Struttura galleggiante ad elevata stabilità (Floating structure with high stability)
2015
DESCRIZIONE GENERALE La struttura galleggiante innovativa è composta da diversi elementi modulari collegati fra loro. La composizione modulare della struttura consente di conferirle la lunghezza dettata dalle particolari esigenze da soddisfare. Tipiche applicazioni della struttura galleggiate innovativa sono i pontili, le passerelle pedonali o ciclabili su specchi d'acqua, e in generale le opere finalizzate a consentire lo spostamento di persone, merci e/o veicoli fra punti di uno specchio d'acqua (marino o lacustre) utilizzando strutture galleggianti. Ogni modulo, lungo 10-15 m, è tenuto a galla dalla spinta di Archimede sulle sue parti immerse (le carene), spinta che nella struttura innov…
Single Event Upsets Induced by Direct Ionization from Low-Energy Protons in Floating Gate Cells
2017
Floating gate cells in advanced NAND Flash memories, with single-level and multi-level cell architecture, were exposed to low-energy proton beams. The first experimental evidence of single event upsets by proton direct ionization in floating gate cells is reported. The dependence of the error rate versus proton energy is analyzed in a wide energy range. Proton direct ionization events are studied and energy loss in the overlayers is discussed. The threshold LET for floating gate errors in multi-level and single-level cell devices is modeled and technology scaling trends are analyzed, also discussing the impact of the particle track size. peerReviewed
A Stochastic Algorithm Based on Fast Marching for Automatic Capacitance Extraction in Non-Manhattan Geometries
2014
WOS:000346854900026 (Nº de Acesso Web of Science) We present an algorithm for two- and three-dimensional capacitance analysis on multidielectric integrated circuits of arbitrary geometry. Our algorithm is stochastic in nature and as such fully parallelizable. It is intended to extract capacitance entries directly from a pixelized representation of the integrated circuit (IC), which can be produced from a scanning electron microscopy image. Preprocessing and monitoring of the capacitance calculation are kept to a minimum, thanks to the use of distance maps automatically generated with a fast marching technique. Numerical validation of the algorithm shows that the systematic error of the algo…
Smart Wireless Sensor Networks and Biometric Authentication for Real Time Traffic Light Junctions Management
2013
The main challenge of intelligent transportation systems (ITS) is to deal with ‘real-time’ information to improve vehicular traffic management. Road data can be processed and used for dynamic traffic light management in order to reduce waiting times in queues. This paper proposes an innovative distributed architecture based on a wireless sensor network (WSN) with a network coordinator providing remote and ubiquitous authentication module for managing unexpected events. The architecture is completed by a dynamic module for street priority management depending on traffic rate. Many experimental trials have been carried out considering three different levels of traffic intensity to prove the e…