Buscar
Mostrando ítems 11-20 de 371
Redução da capacitância de barramento em driver para alimentação de leds
(BrasilUFSMUFSM Cachoeira do Sul, 2019-07-10)
This work presents the contextualization, problem definition and LED driver solution
reducing the effect of circuit bus capacitance. Through the active control of the
driver output current, the ripple from the PFC stage ...
Mini-Percoll Technique Induces Similar Capacitation Features in Domestic Ruminant Frozen-Thawed Spermatozoa Regardless of the Presence of Heparin
(Universidade Federal do Rio Grande do Sul, 2019)
Oocyte competence: importance and determinant factors in vivo and in vitroCompetência oocitária: Importância e fatores determinantes in vivo e in vitro
(2019-01-01)
Reproductive biotechnology promoted beef cattle production growth in the global agribusiness scenario due to the reduction of generation interval, accelerated genetic gain and productivity enhancement. In this context, ...
The open capacitated arc routing problem
(2009-01-01)
Capacitated multicommodity flow problem for heterogeneous smart electricity metering communications using column generation
(MDPI, 2020)
This paper addresses the planning and deployment of wireless heterogeneous networks (WHNs) for smart metering, based on a cross-layer solution. We combine the constraints of the network layer that considers routing and ...
Tyrosine phosphorylation signaling regulates Ca2+ entry by affecting intracellular pH during human sperm capacitation
(Wiley-liss, Div John Wiley & Sons Inc, 2019-04)
Capacitation is a mandatory process for the acquisition of mammalian sperm fertilization competence and involves the activation of a complex and still not fully understood system of signaling pathways. Under in vitro ...
Determination of fluoroacetate and fluoride in blood serum by capillary zone electrophoresis using capacitively coupled contactless conductivity detection
(WILEY-BLACKWELL, 2011)
Fluoroacetate is a highly toxic species naturally found in plants and in commercial products (compound 1080) for population control of several undesirable animal species. However, it is non-selective and toxic to many other ...
Análise e projeto de uma topologia de dois estágios otimizada aplicada à iluminação pública com leds
(Universidade Federal de Santa MariaBREngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia Elétrica, 2012-07-10)
This work presents the analysis and implementation of a connection between two power converters, applied to street lighting with LEDs. This connection is called optimized
cascade. The main idea of this connection is the ...
Desenvolvimento de topologias com redução do processamento redundante de energia para acionamento de leds
(Universidade Federal de Santa MariaBREngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia Elétrica, 2015-08-26)
This work presents the research and development of a connection method for static converters,
called Optimized Cascade, which aims to reduce the redundant power processing in
multiple stage topologies for LED driving. ...