Search results for "ECC"
showing 10 items of 2939 documents
Influence of compliance for an elastokinematic model of a proposed rear suspension
2014
The research is carried out to improve passenger’s comfort to increase the vehicles stability in dynamic conditions. The literature available in the automotive engineering considers different topics for studying suspensions. An example represents mechanisms structure and analysis (synthesis, kinematics, and dynamics) under various operating conditions. These aspects have been approached before analytically, numerical. The current paper studies the influence of the lateral force on the contact patch of the wheel and the corresponding variations of vehicle stability parameters, such as camber angle and wheel rear track. The study is performed for a newer innovative rear suspensions mechanism …
Optimization of the characteristic angles of both front and rear McPherson suspensions on a circular track using multi-body numerical simulation
2009
The research reported in this paper aims to simulate the road-holding of a virtual vehicle using multi-body simulation to estimate both the contact forces between the tyre and ground and the roll motion when cornering. Furthermore, the effect of the characteristic angles on the variation in the forces of the tyre in contact with the ground is studied to determine optimal values for these angles. Emphasis is placed on an average-class vehicle, of which both the external dimensions and mass are chosen appropriately, with a McPherson suspension mounted on both the front and the rear. The characteristic values of the camber and toe-in angles, in both the front and the rear, are optimized for m…
Programa Lluna: talleres de sexo y consumo más seguro en el medio penitenciario (1995-2001)
2002
En el trabajo se expone someramente un programa educativo para la prevención del VIH/Sida consistente en una oferta anual de talleres sobre sexo y consumo de drogas que ha ido evolucionando con buenos resultados y en donde, se basan distintos grupos de autoayuda según características de practica sexual parejas, hombres/mujeres solos. hetero/homosexuales). En este programa intervienen distintos colaboradores profesionales. voluntarios. y los mediadores surgidos y formados en el mismo medio penitenciario, estos últimos de probada eficacia. Los cambios de actitudes en las relaciones humanas y las medidas profilácticas básicas, son la base del mismo. Se exponen los contenidos de los talleres, t…
L'ANTICO CAMPANILE DELLA CATTEDRALE DI LECCE IN UN CONSULTO DEL 1574
2016
L'antico campanile della cattedrale di Lecce si trovava in una posizione diversa rispetto a quello esistente costruito nel 1658. La maestosa torre, con cinque ordini e una terminazione a corona, era collocata di fianco all'antica facciata principale della chiesa, sul lato sinistro. Nel 1574 a causa di numerosi crolli, gli amministratori della chiesa decisero di avvalersi del parere tecnico di tre professionisti: Padoano Schiero, Padoano Baxi e Gabriele Meschinello, chiamati ad esprimersi in merito alla pericolosità di tali crolli e allo stato della torre. Vennero prodotte tre relazioni tecniche i cui contenuti illustravano la necessità di demolire la torre al fine di scongiurare eventuali d…
Dolarización panamericana
2001
Más allá del voto
2007
SMOS REFLEX 2003: L-band emissivity characterization of vineyards
2005
The goal of the Soil Moisture and Ocean Salinity mission over land is to infer surface soil moisture from multiangular L-band radiometric measurements. As the canopy affects the microwave emission of land, it is necessary to characterize different vegetation layers. This paper presents the Reference Pixel L-Band Experiment (REFLEX), carried out in June-July 2003 at the Vale/spl grave/ncia Anchor Station, Spain, to study the effects of grapevines on the soil emission and on the soil moisture retrieval. A wide range of soil moisture (SM), from saturated to completely dry soil, was measured with the Universitat Polite/spl grave/cnica de Catalunya's L-band Automatic Radiometer (LAURA). Concurre…
Global L-band vegetation volume fraction estimates for modeling vegetation optical depth
2021
The attenuation of microwave emissions through the canopy is quantified by the vegetation optical depth (VOD), which is related to the amount of water, the biomass and the structure of vegetation. To provide microwave-derived plant water estimates, one must account for biomass/structure contributions in order to extract the water component from the VOD. This study uses Aquarius scatterometer data to build an L-band global seasonality of vegetation volume fraction (d), representative of biomass/structure dynamics. The dynamic range of d is adapted for its application in a gravimetric moisture (Mg) retrieval model. Results show that d ranging from 0 to 3.35.10- 4 is needed for modelling physi…
Influence of row orientation on the canopy temperature of Sicilian vineyards
2021
Row orientation can have significant effects on grape quality as it directly affects the exposure of the fruits with indirect consequences on wine quality. In this study, a Flir i7 thermal camera was used to measure the temperature of both canopy sides of a ‘Sauvignon blanc’ vineyard trained to vertical shoot position and with north-south (NS) and east-west (EW) row orientations. Photosynthetically active radiation (PAR) measurements using a 0.8-m sensor bar were taken along with the thermal imaging camera measurements. Considering both row orientations, south and east canopy sides were those that intercepted the greatest radiant energy during the day, 57.7 and 47.5%, respectively. The EW r…
Mapping Carbon Stocks In Central And South America With Smap Vegetation Optical Depth
2019
Mapping carbon stocks in the tropics is essential for climate change mitigation. Passive microwave remote sensing allows estimating carbon from deep canopy layers through the Vegetation Optical Depth (VOD) parameter. Although their spatial resolution is coarser than that of optical vegetation indices or airborne Lidar data, microwaves present a higher penetration capacity at low frequencies (L-band) and avoid cloud masking. This work compares the relationships of airborne carbon maps in Central and South America with both (i) SMAP L-band VOD at 9 km gridding and (ii) MODIS Enhanced Vegetation Index (EVI). Models to estimate carbon stocks are built from these two satellite-derived variables.…