Input Andoutput Research Articles

400. シネ撮影装置における I.I. 入出力特性(I.I.)

400. シネ撮影装置における I.I. 入出力特性(I.I.)

400. シネ撮影装置の I. I. 入出力特性(第 46 回総会学術大会会員研究発表予稿)

400. シネ撮影装置の I. I. 入出力特性(第 46 回総会学術大会会員研究発表予稿)

The dam with content-dependent input and output

The dam with content-dependent input and output

A Covariance Method for Identification of Linear Time-Continuous Systems

Abstract A method for the parameter identification of linear, time-invariant systems under stationary, gaussian coloured excitation is presented. The input-and output signals of the considered system are processed in known linear filters. Stationary covariance relations between these signals allow identification of unknown system parameters. The method is developed in detail for mechanical multibody systems and single-input single-output systems.

Simulation procedure for multistage water/hydrogen exchange column for heavy water enrichment accounting for catalytic and scrubbing efficiencies.

The present paper gives a simulation procedure for multistage water/hydrogen exchange columns for heavy water enrichment using hydrophobic catalysts. The Murphree-type efficiencies for H2O, HDO and D2O are used as the scrubbing efficiencies for sieve trays. The reaction rate of H2+D2↔HD is assumed to be very rapid and equilibrated at the outlet of the catalyst bed. The catalytic efficiencies defined for H2O(g) and D2O(g) are considered for the nonequilibrated exchange reactions: H2+HDO(g)↔HD+H2O(g) and H2+D2O(g)↔D2+H2O(g). Those efficiencies are treated as input variables for the simulation. The main calculational loop is based on the Newton-Raphson iteration, but the order of the Jacobian matrix is just equal to the number of sieve trays for vapor/hydrogen scrubbing. The procedure is applicable to solution of operating problems in a wide range of input and output specifications.

On the relationship between production functions and input-output analysis with fixed value shares

this paper we examine the necessary and sufficient conditions for constancy of the value input-output coefficients. In his well-known article Klein1 studied the same problem. Nevertheless, there is a striking difference between his approach and ours. Klein assumes that all inputand output prices are known, either as fixed or as given functions of input demand. He subsequently shows that every production function which is zero-homogeneous in all inputs and outputs yields constant value shares of inputs in the outputs, assuming optimal allocation of both. This is true whenever one specific vector of inputand output prices is considered. We, however, derive conditions of invariance of value shares for any exogenously determined variable vector of input prices and output prices. This additional requirement restricts the class of admissible production functions. First, we consider the case of a single homogeneous output per sector. We show that constancy of value input-output coefficients holds good if and only if the production function is of the linear-homogeneous CobbDouglas type. The sufficient condition is well-known, but contrarily to common belief the necessity of the condition has as yet not been established.

A Note on Dynamic Range of Quantizers

Based on the relationship between the inputand output correlation functions for a symmetric2N step optimum quantizer withGaussian noise inputs a computer programwas generated to obtain plots of the inputnumber of levels versus dynamic range of thequantizer. For it to be physically useful thedynamic range should be related to the distortionin the fundamental band and thedesired harmonic suppression. A definitionbased upon these considerations is suggestedand curves are plotted for two different fundamentaldistortion levels and three differentlevels of harmonic suppression. It is foundthat, for low levels of harmonic suppression(0-20 dB range), the dynamic range can beincreased by tolerating a higher level of fundamentaldistortion. In the medium range ofharmonic suppression (20-35 dB), any increasein the dynamic range due to higherfundamental distortion levels disappearsfor high level quantizers (typically 4 bitsor more). For still higher harmonic suppression(40 dB or higher), the dynamic range ofthe quantizer is independent of the acceptablefundamental distortion.

Input and output for ALGOL 60 on KDF 9

Input and output for ALGOL 60 on KDF 9

Studies of Hydraulic Torque Converter : The 1st Report, (a) Method of Calculating the Characteristics of General Type Hydraulic Drive, (b) Characteristics of Single-Stage Torque Converter for Normal Operation

Applying Euler's theory to the flow in annular circuit and taking the shock-and friction loss into consideration, the relation between the circulating velocity and the input-and output torque of general type hydraulic drive has been deduced. In order to carry out the numerical calculation and to discuss the characteristics of the hydraulic torque converter of all types systematically, a procedure finding out the reasonable arrangement of members in the circuit and the suitable shape of each vane has been derived as follows. Assuming that the shape of each member or vane may be expressed by radii and blade angles at its entrance and exit, and that the flow at the entrance of each member may be shockless at the specific operating condition which is named point, the energy equation, the shockless flow conditions and the conditions of maximizing the efficiency at reference point are obtained. Accordingly, the characteristics may be calculated numerically and systematically, by using the speed ratio and the circulating velocity at reference point as parameters. By way of example, the quantitative tendency of characteristics of single-stage torque converter for normal operation has been made clear.