Results 241 to 250 of about 62,209 (295)
Structural Characterization of Diene Block Copolymers by GPC and Ozonolysis—GPC Measurements
Rubber Chemistry and Technology, 1987 Abstract The sequence distribution and block structure of styrene units in commercial styrene—butadiene and styrene-isoprene copolymers were analyzed by GPC measurements on the original copolymers and on ozonolysis products. Tapered-block structures are clearly differentiated by ozonolysis—GPC measurements.
Yasuyuki Tanaka +2 more
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SPIE Proceedings, 2016 Generalized Phase Contrast (GPC) is an efficient method for efficiently shaping light into speckle-free contiguous optical distributions useful in diverse applications such as static beam shaping, optical manipulation and recently, for excitation in two ...
Andrew R. Bañas +3 more
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Journal of Polymer Science Part A-2: Polymer Physics, 1969
AbstractA resolution index for gel‐permeation chromatograph (GPC) columns is defined by the relation log (RI) = αW, where RI is the resolution index, α is the slope of the calibration curve of logarithm of molecular weight against peak position for narrow polymer fractions, and W is the width of the GPC curves for narrow fractions.
W. V. Smith, G. A. Feldman
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AbstractA resolution index for gel‐permeation chromatograph (GPC) columns is defined by the relation log (RI) = αW, where RI is the resolution index, α is the slope of the calibration curve of logarithm of molecular weight against peak position for narrow polymer fractions, and W is the width of the GPC curves for narrow fractions.
W. V. Smith, G. A. Feldman
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Journal of Applied Polymer Science, 1968
AbstractA rigorous procedure for reducing gel permeation chromatography elution data to differential molecular weight distribution curves is discussed and demonstrated by two sample calculations. The errors introduced by failure to correct the ordinates of the elution curve by means of a differential calibration curve are identified, and a simple ...
W. W. Yau, S. W. Fleming
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AbstractA rigorous procedure for reducing gel permeation chromatography elution data to differential molecular weight distribution curves is discussed and demonstrated by two sample calculations. The errors introduced by failure to correct the ordinates of the elution curve by means of a differential calibration curve are identified, and a simple ...
W. W. Yau, S. W. Fleming
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On a direct relation between GPC in a state space approach and GPC in a polynomial approach
2001 European Control Conference (ECC), 2001Generalized predictive control (GPC) can be derived in a state space approach as well as in a polynomial approach, and several researches which give relations between these approaches had been discussed. However, strict equivalence between GPC in a polynomial approach and GPC in a state space approach has not been shown so far. Therefore, in this paper,
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2014
We present a stochastic Galerkin formulation of the Euler equations based on the variables introduced by P. L. Roe in 1981 for the well-known and widely used Roe solver. For numerical discretization, a Roe average matrix for the standard MUSCL-Roe scheme with Roe variables is derived. The Roe variable formulation is robust for supersonic problems where
Mass Per Pettersson +2 more
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We present a stochastic Galerkin formulation of the Euler equations based on the variables introduced by P. L. Roe in 1981 for the well-known and widely used Roe solver. For numerical discretization, a Roe average matrix for the standard MUSCL-Roe scheme with Roe variables is derived. The Roe variable formulation is robust for supersonic problems where
Mass Per Pettersson +2 more
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IFAC Proceedings Volumes, 1998
Abstract The problem of generalised predictive control of plants characterised by discrete-time models with a nonzero transportation-delay is considered. Several control design procedures suitable for such plant models are given. Conditions for the existence of the solution of the design problem in terms of the pertinent design parameters are given ...
Piotr Suchomski, Zdzislaw Kowalczuk
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Abstract The problem of generalised predictive control of plants characterised by discrete-time models with a nonzero transportation-delay is considered. Several control design procedures suitable for such plant models are given. Conditions for the existence of the solution of the design problem in terms of the pertinent design parameters are given ...
Piotr Suchomski, Zdzislaw Kowalczuk
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1990 American Control Conference, 1990
This paper addresses the question of a suitable "control-relevant identification" strategy for a class of long-range predictive controllers. It is shown that under certain conditions the best process model for predictive control is that which is estimated using an identification objective function similar to the control objective function.
D. S. Shook, C. Mohtadi, S. L. Shah
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This paper addresses the question of a suitable "control-relevant identification" strategy for a class of long-range predictive controllers. It is shown that under certain conditions the best process model for predictive control is that which is estimated using an identification objective function similar to the control objective function.
D. S. Shook, C. Mohtadi, S. L. Shah
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