6,048 research outputs found
Design and Validation of a High-Level Controller for Automotive Active Systems
Active systems, from active safety to energy management, play a crucial role in the development of new road vehicles. However, the increasing number of controllers creates an important issue regarding complexity and system integration. This article proposes a high-level controller managing the individual active systems - namely, Torque Vectoring (TV), Active Aerodynamics, Active Suspension, and Active Safety (Anti-lock Braking System [ABS], Traction Control, and Electronic Stability Program [ESP]) - through a dynamic state variation. The high-level controller is implemented and validated in a simulation environment, with a series of tests, and evaluate the performance of the original design and the proposed high-level control. Then, a comparison of the Virtual Driver (VD) response and the Driver-in-the-Loop (DiL) behavior is performed to assess the limits between virtual simulation and real-driver response in a lap time condition. The main advantages of the proposed design methodology are its simplicity and overall cooperation of different active systems, where the proposed model was able to improve the vehicle behavior both in terms of safety and performance, giving more confidence to the driver when cornering and under braking. Some differences were discovered between the behavior of the VD and the DiL, especially regarding the sensitivity to external disturbances
Lepton Flavor Violation and Collider Searches in a Type I + II Seesaw Model
Neutrino are massless in the Standard Model. The most popular mechanism to
generate neutrino masses are the type I and type II seesaw, where right-handed
neutrinos and a scalar triplet are augmented to the Standard Model,
respectively. In this work, we discuss a model where a type I + II seesaw
mechanism naturally arises via spontaneous symmetry breaking of an enlarged
gauge group. Lepton flavor violation is a common feature in such setup and for
this reason, we compute the model contribution to the
and decays. Moreover, we explore the connection between
the neutrino mass ordering and lepton flavor violation in perspective with the
LHC, HL-LHC and HE-LHC sensitivities to the doubly charged scalar stemming from
the Higgs triplet. Our results explicitly show the importance of searching for
signs of lepton flavor violation in collider and muon decays. The conclusion
about which probe yields stronger bounds depends strongly on the mass ordering
adopted, the absolute neutrino masses and which much decay one considers. In
the 1-5 TeV mass region of the doubly charged scalar, lepton flavor violation
experiments and colliders offer orthogonal and complementary probes. Thus if a
signal is observed in one of the two new physics searches, the other will be
able to assess whether it stems from a seesaw framework.Comment: 41 pages, 1 figure, 2 table
Estudo da herança da resistência a brusone em duas cultivares de arroz (Oryza sativa).
O objetivo do presente trabalho foi de identificar o número de alelos envolvidos na expressão da resistência qualitativa à brusone nas folhas nas cultivares Cica-8 e Metica-1.Conpeex 2010
Estiolamento in vitro: uma alternativa para a produção de mudas micropropagadas de antúrio.
bitstream/item/55489/1/CIT11005.pd
Os programas estratégicos para o controle do carrapato dos bovinos.
No Rio Grande do Sul, tradicionalmente o controle do carrapato (cientificamente denominado de Boophilus microplus) vem sendo efetuado através de banhos sucessivos, principalmente nos períodos da primavera, verão e outono.bitstream/item/55704/1/ct43-2001.pd
Efeito da infestação por Haematobia irritans no peso corporal de novilhos da raça Ibagé no RS.
bitstream/item/63770/1/cr20-2001.pd
O controle da mosca das miíases ou bicheiras (Cochliomyia hominivorax).
A mosca de miíases (cujo nome científico é Cochliomyia hominivorax), em animais de sangue quente e mesmo no homem, apresenta um parasitismo obrigatório periódico, que é produzido pelas suas larvas, as quais são vulgarmente conhecidas como bicheira.bitstream/item/55722/1/ct40-2001.pd
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