16 research outputs found

    Analytical planning and practical realization of the intellectual systems of automatic control

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    Формалізовано процес автоматизації профілактичного вентилювання насипу зерна при зберіганні засобами розмитої логіки. Визначео та задано нечіткими термами лінгвістичні змінні, нелінійні залежності: рівноважна вологість зерна як функція його температури, відносної вологості і параметрів повітря та продуктивність вентиляційної системи як функція часу вентилювання, відносної вологості і маси зерна, реалізовані в нечітких контролерах, які з'єднані між собою відповідно до послідовності керування процесом профілактичного вентилювання. Нечітка система керування реалізує процес вентиляції зернового насипу за заданими параметрами з похибкою 8%. Система працює в реальному часі, через паралельний порт комп'ютера задає режими роботи вентиляційної установки.The process of automation of prophylactic aeration of embankment of grain is formalized at storage of the washed out logic facilities. Certain and set unclear therms linguistic variables, nonlinear dependences of humidity of grain in a state of equilibrium as functions of his temperature, relative humidity and parameters of air and productivity of a vent system as are realized the function of time of aeration, relative humidity and mass of grain in unclear inspectors which connection between itself according to the sequence of process control of prophylactic aeration. Unclear control the system will realize the process of ventilation of corn embankment after preset a parameter with an error 8%. The system works real-time, through parallel port of computer sets the modes of operations of a vent setting

    High intensity neutrino oscillation facilities in Europe

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    The EUROnu project has studied three possible options for future, high intensity neutrino oscillation facilities in Europe. The first is a Super Beam, in which the neutrinos come from the decay of pions created by bombarding targets with a 4 MW proton beam from the CERN High Power Superconducting Proton Linac. The far detector for this facility is the 500 kt MEMPHYS water Cherenkov, located in the Fréjus tunnel. The second facility is the Neutrino Factory, in which the neutrinos come from the decay of μ+ and μ− beams in a storage ring. The far detector in this case is a 100 kt magnetized iron neutrino detector at a baseline of 2000 km. The third option is a Beta Beam, in which the neutrinos come from the decay of beta emitting isotopes, in particular He6 and Ne18, also stored in a ring. The far detector is also the MEMPHYS detector in the Fréjus tunnel. EUROnu has undertaken conceptual designs of these facilities and studied the performance of the detectors. Based on this, it has determined the physics reach of each facility, in particular for the measurement of CP violation in the lepton sector, and estimated the cost of construction. These have demonstrated that the best facility to build is the Neutrino Factory. However, if a powerful proton driver is constructed for another purpose or if the MEMPHYS detector is built for astroparticle physics, the Super Beam also becomes very attractive

    Design of a neutrino source based on beta beams

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    "Beta beams" produce collimated pure electron (anti)neutrino beams by accelerating beta active ions to high energies and having them decay in a racetrack shaped storage ring of 7 km circumference, the decay ring. EUROnu beta beams are based on CERN infrastructures and existing machines. Using existing machines may be an advantage for the cost evaluation, but will also constrain the physics performance. The isotope pair of choice for the beta beam is He6 and Ne18. However, before the EUROnu studies one of the required isotopes, Ne18, could not be produced in rates that satisfy the needs for physics of the beta beam. Therefore, studies of alternative beta emitters, Li8 and B8, with properties interesting for a beta beam have been proposed and have been studied within EUROnu. These alternative isotopes could be produced by using a small storage ring, in which the beam traverses a target, creating the Li8 and B8 isotopes. This production ring, the injection linac and the target system have been evaluated. Measurements of the cross section of the reactions to produce the beta beam isotopes show interesting results. A device to collect the produced isotopes from the target has been developed and tested. However, the yields of Li8 and B8, using the production ring for production of Li8 and B8, is not yet, according to simulations, giving the rates of isotopes that would be needed. Therefore, a new method of producing the Ne18 isotope has been developed and tested giving good production rates. A 60 GHz ECRIS prototype, the first in the world, was developed and tested for ion production with contributions from EUROnu. The decay ring lattices for the Li8 and B8 have been developed and the lattice for He6 and Ne18 has been optimized to ensure the high intensity ion beam stability
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