Search results for "lcsh:A"
showing 10 items of 1866 documents
Mapping productivity and essential biophysical parameters of cultivated tropical grasslands from sentinel-2 imagery.
2020
Nitrogen (N) is the main nutrient element that maintains productivity in forages
Quantum Correlation Dynamics in Controlled Two-Coupled-Qubit Systems
2020
We study and compare the time evolutions of concurrence and quantum discord in a driven system of two interacting qubits prepared in a generic Werner state. The corresponding quantum dynamics is exactly treated and manifests the appearance and disappearance of entanglement. Our analytical treatment transparently unveils the physical reasons for the occurrence of such a phenomenon, relating it to the dynamical invariance of the X structure of the initial state. The quantum correlations which asymptotically emerge in the system are investigated in detail in terms of the time evolution of the fidelity of the initial Werner state.
Enhancing Metastability by Dissipation and Driving in an Asymmetric Bistable Quantum System.
2018
The stabilizing effect of quantum fluctuations on the escape process and the relaxation dynamics from a quantum metastable state are investigated. Specifically, the quantum dynamics of a multilevel bistable system coupled to a bosonic Ohmic thermal bath in strong dissipation regime is analyzed. The study is performed by a non-perturbative method based on the real-time path integral approach of the Feynman-Vernon influence functional. We consider a strongly asymmetric double well potential with and without a monochromatic external driving, and with an out-of-equilibrium initial condition. In the absence of driving we observe a nonmonotonic behavior of the escape time from the metastable regi…
INTEGRATED SYSTEMS IN PLANT PROTECTION MANAGEMENT: FIRE BLIGHT OF ROSACEOUS PLANTS (Erwinia amylovora (Burrill) - Winslow) IN AN APPLE ORCHARD IN SIB…
2013
Integrated protection represents a modern approach, denoting a protection strategy of agro-ecosystems; and it represents a complex system employing all appropriate methods in a manner as consistent and smooth as possible, in order to maintain the biocenotic balance of agrosystems and to keep pathogens at a level at which they do not cause economic damage (so-called level of eco-efficiency). A biocenotic approach to issues of agrosystem protection against disease attack requires an acknowledgement of all aspects regarding the evolution of pests in time and space, so as to be able to intervene at the right time with all possible means. And such protection measures are not supposed to restrain…
Incidence de la clarification des moûts de raisin sur les fermentescibilltés alcoolique et malolactique
1993
<p style="text-align: justify;">Des essais de débourbage en vinification en blanc, réalisés de 1988 à 1992, mettent en évidence le rôle important joué par la teneur en macromolécules solubles dans le moût de raisin. Les moûts de faible turbidité conduisent en effet à des fermentations alcooliques lentes en relation avec de faibles populations levuriennes. Il est également confirmé que la libération de polysaccharides exocellulaires par les levures au cours de la fermentation alcoolique est d'autant plus élevée que le moût de départ a été fortement appauvri en colloïdes de raisin. Par contre, ce sont dans les lots les plus clarifiés que l'on observe la meilleure fermentescibilité malol…
Harry Francis Mallgrave. L'empatia degli spazi. Architettura e neuroscienze
2015
Le informazioni che possiamo acquisire sul molteplice aspetto della realtà passano attraverso la percezione sensoriale che il nostro corpo ha dell’esterno. La relazione fra il corpo e l’architettura è proprio il tema centrale intorno al quale si snoda il libro di Harry Francis Mallgrave che, in quanto pioniere degli studi sull'applicazione delle neuroscienze alla teoria architettonica, svela attraverso "L’empatia degli spazi" la potenza e la forza del corpo nel costruire le forme della realtà. Information we can acquire on the multiple aspect of reality passes through sensory perception that our body has of the outside. The relationship between body and architecture is the central topic of …
Entrevista al narrador Tommaso Pincio
2016
El autor Tommaso Pincio, seudónimo di Marco Colapietro (Roma, 1963), es sin lugar a dudas uno de los narradores de mayor proyección en el panorama literario de los últimos tiempos. Iniciada su carrera en 1999 con M., ha publicado títulos como Lo spazio sfinito (2000) y Un amore dell'altro mondo (2002), en el que narra la vida de Kurt Cobain, líder del grupo Nirvana, a través de la visión de un amigo imaginario. A estas dos novelas siguieron La ragazza che non era lei (2005), Gli alieni (2006) o Cinacittà. Memorie del mio delitto efferato (2008), ambientada en una Roma colonizada por los chinos y abandonada por los mismos romanos a causa de problemas medioambientales. Títulos como L'hotel a …
STUDY CONCERNING FOREST ECOLOGIC RECONSTRUCTIUON ON DEGRADED LAND IN RANGE OCOLUL SILVIC “VALEA CIBINULUI”, SALISTE, ROMANIA
2014
The study examines the stationary conditions, determine solutions to improve degraded land, assessing the cost of ecological restoration work needed in the area of improving degraded lands at Rapa - Copăcel, estimated benefits of the project and its viability. Objectives of the paper: need to introduce in the circuit of productive forest lands within the improvement of the area "La Rapa - Copăcel" danger zone where activation of the phenomena of degradation (erosion , landslides ) predominate. Out of 102.33 ha as area for improvement, the effective area of 101.6 ha is forested, representing a difference of 0.73 ha, 1.2 m wide strip that is to be the place for hedges. Viability of the projec…
THE ATTITUDE AND MOTIVATION OF BUYERS OF TRADITIONAL/ LOCAL/ BIO PRODUCTS IN THE CONTEXT OF AGROTOURISM, IN SIBIU COUNTY, ROMANIA
2013
Based on the statistical data concerning the sheep breeding in district Sibiu and on the information obtained by making investigations markets and fairs where they sell traditional/bio products, the extent was appreciated to which this products are known and desired. The survey was conducted between May and November 2012 in four locations: “Transilvania Peasant Market (Piata Taraneasca Transilvania)”, “Traditional agro-food products Fear (Targul de Produse Agroalimentare Traditionale)” from Huet Market, “Traditional Products and Handicrafts Fear (Targul de Produse Traditionale si Mestesugaresti)” inside the Carrefour hypermarket and in “Agricultural Market” Rasinari, Sibiu county. There wer…
Straw uses trade-off only after soil organic carbon steady-state
2018
Soil organic matter (SOM) is the key for a healthy soil and a relevant property to achieve the sustainability on soil management. However, soils are still net exporters of organic matter. One example is the use of wheat straw residue for industrial and energy applications, which has gained attention in the last years. The offfarm use of this abundant and low cost resource should follow sustainability criteria to avoid soil degradation and SOM losses. Straw residue incorporation is recognized as a recommended management practice to control erosion and mitigate CO2 emissions by increasing SOM. The goal of this work was: i) to evaluate the steady-state carbon (C) level in relation to C input a…