Results 11 to 20 of about 947,306 (267)
Efeito do ensacamento sobre a incidência de moscas-das-frutas e na qualidade das goiabas
Arquivos do Instituto Biológico, 2016 RESUMO: Com o objetivo de determinar o tamanho ideal dos frutos para serem ensacados e avaliar a eficiência de diferentes ensacamentos no controle de moscas-das-frutas, bem como sua correlação com a qualidade das goiabas do Cariri cearense, realizou-se ...
Francisco Roberto de Azevedo +4 more
doaj +1 more source
Mechanisms for usage control [PDF]
Proceedings of the 2008 ACM symposium on Information, computer and communications security, 2008 Usage control is a generalization of access control that also addresses how data is used after it is released. We present a formal model for different mechanisms that can enforce usage control policies on the consumer side.
Pretschner, A. +4 more
openaire +1 more source
Planta Daninha, 2005 Foi desenvolvido um conjunto de equipamentos com o objetivo de mapear as áreas infestadas por macrófitas aquáticas, auxiliando operações de manejo mecânico, as quais são realizadas por uma colhedora desenvolvida especificamente para essa finalidade.
M.R. Corrêa +4 more
doaj +1 more source
Active Dielectric Metasurfaces for Switchable Terahertz Beam Steering and Focusing
IEEE Photonics Journal, 2021 Conventional metasurfaces often manipulate light propagation in a passive way, which cannot satisfy the dynamic operation requirements of many practical applications.
Kaiji Chen +8 more
doaj +1 more source
Glyphosate-Resistant Sourgrass Management Programs Associating Mowing and Herbicides [PDF]
Planta Daninha: Currently, sourgrass is one of the most important weeds in grain production areas in Brazil. The objective of this work was to evaluate the efficiency of associated systems composed by mowing and chemical control against clumped sourgrass. In the first
R.T. RAIMONDI +4 more
doaj +2 more sources
Connectionist mechanisms for cognitive control [PDF]
Neurocomputing, 2005 An understanding of cognitive control is crucial for understanding high-level cognition and delineating the functional role of prefrontal cortex in supporting complex cognitive operations. In this paper, we approach the problem of cognitive control by examining the control needs of SHRUTI, a neurally plausible and cognitively motivated model of ...
Wendelken, Carter, Shastri, Lokendra
openaire +2 more sources
Colored polyethylene film mulches on weed control, soil conditions and peanut yield
Plant, Soil and Environment, 2015 A two-year field experiment was conducted to investigate the effects of colored polyethylene (PE) films on weed control, soil temperature and moisture, and pod yield of peanut.
T. Sun +6 more
doaj +1 more source
DEMONSTRATION OF SUMAC FRUITS EXTRACTS ACTIVITY AS ANTIOXIDANTS [PDF]
Mesopotamia Journal of Agriculture, 2013 A antioxidant activities of red sumac fruits (semi ripe) (Rhus coriaria) extracts were evaluated and compared with Butylated Hydroxy Toluene (BHT) as a positive control compared sample by using reducing power test, B-Carotene bleaching test, Hydrogen ...
M.M. Al-Zubaidy +23 more
doaj +1 more source
Control Mechanisms for Mobile Devices
IEEE Transactions on Vehicular Technology, 2023 In this paper we consider control mechanisms for mobile devices in a stochastic environment. In particular, we consider a device in n-dimensional space subject to Brownian perturbations where a control mechanism moves the device towards its target location at a speed which is a function of its displacement.
Peter J. Smith 0001 +4 more
openaire +4 more sources
Acta Technologica Agriculturae, 2016 Moldavian balm is an annual herbaceous plant and its lemon-scented leaves contain essential oil. However, weeds adversely affect its growth by release of allelochemicals, and/or direct competition for nutrient, moisture, light and space.
Janmohammadi Mohsen +2 more
doaj +1 more source