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Because of the interest in the Higinbotham scaler, its operation is described and some test data is presented together with the circuit diagram. A typical parts list is included. This circuit particularly the input, is subject to ...
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Because of the interest in the Higinbotham scaler, its operation is described and some test data is presented together with the circuit diagram. A typical parts list is included. This circuit particularly the input, is subject to change as experience is gained. Tests indicate that the circuit parameters of a Higinbotham circuit are wide. This conclusion is based on tests of two scalers made by Wendell Bradley's group and tested largely through the efforts of Stanley Cooper. Further work is envisaged and will be reported on in due course. John Simpson reports that a Higinbotham has been driven at 800 K.C. He achieved this with a special input circuit and a regular pulse. In the early stages he was also careful about stray capacitances. An oscilloscope was used as a recorder.
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This report presents the design procedures and average run lengths of two multivariate cumulative sum (CUSUM) quality control procedures. The first CUSUM procedure reduces each multivariate observation to a scaler and then forms a...
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This report presents the design procedures and average run lengths of two multivariate cumulative sum (CUSUM) quality control procedures. The first CUSUM procedure reduces each multivariate observation to a scaler and then forms a CUSUM of the scalers. The second CUSUM procedure forms a CUSUM vector directly from the observations. These two procedures are compared to each other and to the multivariate Shewhart chart. Other multivariate quality control procedures are mentioned. Robustness, the Fast Initial Response feature for CUSUM schemes, and combined Shewhart-CUSUM schemes are discussed. Keywords: Shewhart chart, Average run length, Cumulative sum scheme. (MJM)
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This report describes a multi-scaler system of small bulk, high degree of flexibility and low cost, based on a microprocessor kit and LS1 counter chips.
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The standard model (SM) relies on the Higgs mechanism for gauge invariantgeneration of particle masses. It contains a single complex scalar doublet field, whose only observable article is the neutral Higgs boson. At present there ...
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The standard model (SM) relies on the Higgs mechanism for gauge invariantgeneration of particle masses. It contains a single complex scalar doublet field, whose only observable article is the neutral Higgs boson. At present there are no experimental results that limit the Higgs sector to a single doublet. The authors search for evidence of a minimal extension to the Higgs sector, through the addition of a second scalar doublet. They examine predictions of a model that couples one doublet to up-type quarks and neutrinos, and the other to down-type quarks and charged leptons, as is the case for the minimal supersymmetric model. In conlusion, the authors find no evidence for a charged Higgs-boson in their data.
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Two fast NIM logic scale-down units have been designed and packaged in a single-width NIM module. The scale-down factor ''N'' is set via an octal DIP switch located on the front panel. Each unit accepts input pulses of width >50 n...
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Two fast NIM logic scale-down units have been designed and packaged in a single-width NIM module. The scale-down factor ''N'' is set via an octal DIP switch located on the front panel. Each unit accepts input pulses of width >50 ns up to a maximum rate of 15 Mhz. The output pulses are produced at a rate of 1/N th of the input rate where N is an integer between 1 and 255. The time difference between the input and output signals is approx.10 ns and remains constant regardless of the scale-down factor. LEDs attached to the input and output pulses give a visual indication of the relative rates. (ERA citation 12:029029)
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The Scaler/Timer type 95/6255-1 is now extensively used for nucleonic counting applications since, in conjunction with other units in the Harwell 6000 Laboratory Series, systems can easily be assembled to meet a wide range of coun...
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The Scaler/Timer type 95/6255-1 is now extensively used for nucleonic counting applications since, in conjunction with other units in the Harwell 6000 Laboratory Series, systems can easily be assembled to meet a wide range of counting requirements. The 6255 is microprocessor-based and contains comprehensive counting and timing facilities (eg 2 scalers, 2 timers, 4 ratemeters, multiple cycle operation, control of other 6255's and RS232C output) and was intended for counting, printing and logging operations; the unit does not, therefore contain facilities for processing data. However, in some applications processing of the data accumulated in the 6255 is needed, for example, for removal of background, for statistical tests etc, and the design of the 6255 enables this to be carried out with a low-cost microcomputer. This report illustrates how this can be done, using the Commodore VIC computer as an example. (Atomindex citation 15:039363)
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If X and Y are real Hilbert spaces (A : X approaches Y is a bounded linear operator, and gamma is contained in set Y is a closed convex cone) an immediate sufficient condition for a quadratic form Q on X to be positive subject to ...
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If X and Y are real Hilbert spaces (A : X approaches Y is a bounded linear operator, and gamma is contained in set Y is a closed convex cone) an immediate sufficient condition for a quadratic form Q on X to be positive subject to the constraint Ax is an element of gamma, is that Q be decomposable as a sum Q(x) = C(Ax) + S(x), where C is a quadratic form on Y which is positive on gamma, and S is positive definite on X. The necessity of such a decomposition is established for a class of quadratic forms which commonly occur in variational problems - the Legendre forms. The proof furnishes formulas for C and S which are explicit apart from the occurrence of an unkown scalar. The usefulness of the result is illustrated by the determination of the focal (conjugate) time of a linear-quadratic control problem with inequality constraints on the final state.
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The report discusses verification of the logic design, design of the MOS circuit, layout of the MOS chip, manufacturing of the MOS chip and testing.
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It is the purpose of the present contract to obtain a theoretical understanding of the excitation of the scalar feed by sources suitable for two and four horn monopulse applications. Initially two parallel investigations are under...
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It is the purpose of the present contract to obtain a theoretical understanding of the excitation of the scalar feed by sources suitable for two and four horn monopulse applications. Initially two parallel investigations are underway. The first involves determining natural modes for the conical horn geometry of the scalar feed satisfying appropriate impedance boundary conditions and the coupling from various sources to these modes. The second investigation is based on the development of a digital computer program for solving the integral form of Maxwell's equations directly for radiation from the scalar feed structure as a metallic body of revolution.
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This letter continues the program aimed at analysis of the scalar product ofstates in the Chern-Simons theory. It treats the elliptic case with group SU(2). The formal scalar product is expressed as a multiple finite dimensional i...
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This letter continues the program aimed at analysis of the scalar product ofstates in the Chern-Simons theory. It treats the elliptic case with group SU(2). The formal scalar product is expressed as a multiple finite dimensional integral which, in convergent for every state, provides the space of states with a Hilbert space structure. The convergence is checked for states with a single Wilson line where the integral expressions encode the Bethe-Ansatz solutions of the Lame equation. In relation to the Wess-Zumino-Witten conformal field theory, the scalar product renders unitary the Knizhnik-Zamaolodchikov-Bernar connection and gives a pairing between conformal blocks used to obtain the genus one correlation functions.
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