1,269 research outputs found

    Gaze stabilization testing: The efficiency and test-retest reliability of user operated control versus the parameter estimation (PEST) algorithm

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    The primary objective of this research study is to determine which form of testing, the PEST algorithm or an operator-controlled condition is most accurate and time efficient for administration of the gaze stabilization tes

    On Protected Realizations of Quantum Information

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    There are two complementary approaches to realizing quantum information so that it is protected from a given set of error operators. Both involve encoding information by means of subsystems. One is initialization-based error protection, which involves a quantum operation that is applied before error events occur. The other is operator quantum error correction, which uses a recovery operation applied after the errors. Together, the two approaches make it clear how quantum information can be stored at all stages of a process involving alternating error and quantum operations. In particular, there is always a subsystem that faithfully represents the desired quantum information. We give a definition of faithful realization of quantum information and show that it always involves subsystems. This justifies the "subsystems principle" for realizing quantum information. In the presence of errors, one can make use of noiseless, (initialization) protectable, or error-correcting subsystems. We give an explicit algorithm for finding optimal noiseless subsystems. Finding optimal protectable or error-correcting subsystems is in general difficult. Verifying that a subsystem is error-correcting involves only linear algebra. We discuss the verification problem for protectable subsystems and reduce it to a simpler version of the problem of finding error-detecting codes.Comment: 17 page

    The Role of Water in a Dairy Cow\u27s Ration

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    In connection with the investigations by this department on \u27\u27The Effect of Alkali Water on Dairy Cows and Dairy Products\u27\u27 it became evident that the information on the functions of water in the ration of a dairy cow was meager. Furthermore, during this work some clews were obtained which the investigators desired to carry to a conclusion. . . . It is the object of the investigation reported in this bulletin to study the effects of watering the cow at different intervals and in varying amounts upon the amount of food consumed, digestibility of nutrients, amount and composition of feces and urine, amount and composition of milk, composition and quality of butterfat, body temperature and physical condition of cows. Incidentally, the bulletin furnishes some data on the mineral metabolism of the cow

    Chiral Rings, Vacua and Gaugino Condensation of Supersymmetric Gauge Theories

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    We find the complete chiral ring relations of the supersymmetric U(N) gauge theories with matter in adjoint representation. We demonstrate exact correspondence between the solutions of the chiral ring and the supersymmetric vacua of the gauge theory. The chiral ring determines the expectation values of chiral operators and the low energy gauge group. All the vacua have nonzero gaugino condensation. We study the chiral ring relations obeyed by the gaugino condensate. These relations are generalizations of the formula SN=Λ3NS^N=\Lambda^{3N} of the pure N=1{\cal N} =1 gauge theory.Comment: 38 page

    The Conformable Information Filter

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    In this project, we construct an information filter associated with a linear continuous control system corrupted by some noise. Here, the system is defined in terms of a conformable derivative introduced by Khalil et al. in 2014. This time-weighted derivative shares many of the same properties as the classical derivative but lacks the usual semigroup property associated with the exponential. Mathematically, this conformable information filter is a backward-time counterpart of the recently constructed conformable Kalman filter. Here, the inverse of the error covariance associated with the Kalman filter becomes the information matrix for the information filter. The conformable information filter allows for smoothed estimates of the true state of our control system

    Spektroskopija visokog razlučivanja hiperjezgre 12λb proizvedene reakcijom (e, e ′K+)

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    The first electroproduction experiment of a hypernucleus was undertaken at the Thomas Jefferson National Acceleration Facility. The (e, e ′K+) reaction was used on a natC target resulting in the observation of the 12ΛB hypernucleus. The excitation spectrum is presented and discussed.U Thomas Jefferson National Acceleration Facility načinili smo prvo mjerenje elektrotvorbe hiperjezgre. Primijenili smo reakciju (e, e ′K+) na meti prirodnog C i opažali hiperjezgre 12ΛB. Raspravljamo spektar uzbude
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