The activities of László Kalmár in the world of information technology

Since the end of the 1950s László Kalmár has been interested in the information technology. During a 20 years period he designed several variants of computers interpreting high-level programming languages on architectural levels

Measurement of interstage fluid-annulus dynamical properties

The work described in this paper is part of an Electric Power Research Institute sponsored effort to improve rotor vibrational performance on power plant feed water pumps. A major objective of this effort is to reduce vibration levels by devising inter-stage sealing configurations with optimized damping capacity, realizing that the typical multi-stage centrifugal pump has several ore inter-stage fluid annuli than it has journal bearings. Also, the fluid annuli are distributed between the journal bearings where vibration levels are highest and can therefore be 'exercised' more as dampers than can the bearings. Described in this paper is a test apparatus which has been built to experimentally determine fluid-annulus dynamical coefficients for various configurations of inter-stage sealing geometry

Assessment in Communication Programs: Issues and Ideas Administrators Must Face

This article discusses issues and ideas school administrators and educators must face with regards to assessment in communication programs. The challenge for a considerable number of communication administrators and other faculty was addressed intensively at the 1994 Speech Communication Association Summer Conference on Assessment. Assessment in communication education from the basic courses through most advanced studies is necessary. By working to meet this responsibility, communication educators can provide the quality of education their constituencies expect in order to educate students to become citizens who will find both satisfaction and success on the career paths they choose to follow. There is a wealth of information already accumulating to explain, support and guide assessment. At conferences about assessment, vendors display materials about assessment for purchase by a variety of disciplines, much like textbook publishers do at communication conventions. An assumption one must make is that assessment is not an activity to undertake as a primary defensive strategy. Speech communication or communication studies are titles administrators and educators assign to a discipline that often produces too much anxiety in colleagues who feel a need to justify and defend their existence and missions on campuses

Establishing the Department\u27s Credibility with Central Administration

Presents an article about how the Department of Interpersonal Communication at Bowling Green State University in Ohio established its credibility. Principles applied in administering the department; Importance of promoting a department\u27s image; Skills and attitude relevant to department chairperson

Marachkov type stability results for functional differential equations

This paper is concerned with systems of functional differential equations with either finite or infinite delay. We give conditions on the system and on a Liapunov function to ensure that the zero solution is asymptotically stable. The main result of this paper is that the assumption on boundedness in Marachkov type stability results may be replaced (in both the finite and the infinite delay case) with the condition that $|f(t,\varphi)|\le F(t)$ such that $\int^{\infty} 1/F(t) dt=\infty$

Attractors and basins of dynamical systems

There are several programs for studying dynamical systems, but none of them is very useful for investigating basins and attractors of higher dimensional systems. Our goal in this paper is to show a new algorithm for finding even chaotic attractors and their basins for these systems. We present an implementation and examples for the use of this program

Continuity, compactness, fixed points, and integral equations

An integral equation, $x(t)=a(t)-\int^t_{-\infty} D(t,s)g(x(s))ds$ with $a(t)$ bounded, is studied by means of a Liapunov functional. There results an a priori bound on solutions. This gives rise to an interplay between continuity and compactness and leads us to a fixed point theorem of Schaefer type. It is a very flexible fixed point theorem which enables us to show that the solution inherits properties of $a(t)$, including periodic or almost periodic solutions in a Banach space