General theory of steady-state voltammetry

Clinical biochemistry, as an independent discipline within medical science, has developed its own body of theory and practice, and as such it cannot only be concerned with collecting observations. A simple report (plasma potassium=5·3 mmol/L*) is used as a model to discuss the problems of understanding measured chemical changes in the body in disease, and how these lead towards a general theory. These include the nature of the analysand and the reference base; accuracy and identification of the analyte; how disturbances of the steady state contribute to changes in a static result; the implications of precision; differences between activity, concentration and content; the convention of arithmetical concentration; and the meaning of ‘abnormal’, and of derived terms such as ‘predictive value’ and ‘decision level’. Clinical biochemists/chemical pathologists, with their understanding of all these and related problems, must act as the necessary bridge between analysts and clinicians.

Download Full-text

General Theory of a Gas not in a Steady State

An Introduction to the Kinetic Theory of Gases ◽

10.1017/cbo9780511628849.010 ◽

1982 ◽

pp. 225-252

Keyword(s):

Steady State ◽

General Theory

Download Full-text

FRACTAL DUST MODEL OF THE UNIVERSE BASED ON MANDELBROT'S CONDITIONAL COSMOLOGICAL PRINCIPLE AND GENERAL THEORY OF RELATIVITY

Fractals ◽

10.1142/s0218348x03001562 ◽

2003 ◽

Vol 11 (02) ◽

pp. 145-153 ◽

Cited By ~ 2

Author(s):

A. K. MITTAL ◽

DAKSH LOHIYA

Keyword(s):

Steady State ◽

General Theory ◽

Cosmological Constant ◽

Theory Of Relativity ◽

General Theory Of Relativity ◽

Cosmological Principle ◽

Galaxy Count ◽

Interesting Variation ◽

The Universe ◽

Fractal Dust

We present a fractal dust model of the Universe based on Mandelbrot's proposal to replace the standard Cosmological Principle by his Conditional Cosmological Principle within the framework of General Theory of Relativity. This model turns out to be free from the Hubble de-Vaucouleurs paradox and is consistent with the SNe1a observations. The expected galaxy count as a function of red-shift is obtained for this model. An interesting variation is a steady state version, which can account for an accelerating scale factor without any cosmological constant in the model.

Download Full-text

A complete second-order theory for the unsteady flow about an airfoil due to a periodic gust

Journal of Fluid Mechanics ◽

10.1017/s0022112076002036 ◽

1976 ◽

Vol 74 (4) ◽

pp. 741-765 ◽

Cited By ~ 100

Author(s):

M. E. Goldstein ◽

H. Atassi

Keyword(s):

Steady State ◽

General Theory ◽

Incompressible Flow ◽

Order Theory ◽

Second Order ◽

Response Functions ◽

Solid Objects ◽

State Potential ◽

Explicit Formulae ◽

Steady State Potential

In this paper we develop a uniformly valid, second-order theory for calculating the unsteady incompressible flow that occurs when an airfoil is subjected to a convected sinusoidal gust. Explicit formulae for the airfoil response functions (i.e. fluctuating lift) are given. The theory accounts for the effect of the distortion of the gust by the steady-state potential flow around the airfoil, and this effect is found to have an important influence on the response functions. A number of results relevant to the general theory of the scattering of vorticity waves by solid objects are also presented.

Download Full-text