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Physical Sciences and Mathematics Commons

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Articles 1 - 9 of 9

Full-Text Articles in Physical Sciences and Mathematics

Student Perceptions Of The Relative Importance Of Selected Attributes Of An Institution Of Higher Education: A Conjoint Approach, John Fraas, Ronald Paugh Sep 1989

Student Perceptions Of The Relative Importance Of Selected Attributes Of An Institution Of Higher Education: A Conjoint Approach, John Fraas, Ronald Paugh

John W. Fraas

A study investigated the relative importance of certain college attributes to the freshmen of Ashland University, a small, private university in Ohio. Five institutional characteristics were examined: availability and variety of financial aid, dorm life (living conditions and food quality), quality of education (quality of teaching, career relevance of the curriculum, and overall institutional reputation), student-faculty relationships and interaction (availability of faculty to students, faculty promotion of student development, and degree of faculty advice given to students on personal as well as academic matters), and campus social life.


On The Dimension Of Bivariate Superspline Spaces, Tian-Xiao He Jun 1989

On The Dimension Of Bivariate Superspline Spaces, Tian-Xiao He

Tian-Xiao He

A bivariate piecewise polynomial function of total degree d on some grid partition △ that has rth order continuous partial derivatives everywhere may have higher-order partial derivatives at the vertices of the grid partition. In finite element considerations and in the construction of vertex splines, it happens that only those functions with continuous partial derivatives of order higher than r at the vertices are needed to give the same full approximation order as the entire space of piecewise polynomials. This is certainly the case for d > 4r + 1. Such piecewise polynomial functions are called supersplines. This …


Progress In The Development Of Hemp Protection Standards For C3i Facilities, George H. Baker, Clinton R. Gordon Apr 1989

Progress In The Development Of Hemp Protection Standards For C3i Facilities, George H. Baker, Clinton R. Gordon

George H Baker

DoD is involved in EMP standards development efforts which culminate 25 years of research. This paper previews an EMP protection standard for fixed, ground-based communication facilities. The standard uses a low-risk hardening approach which depends on an electromagnetic barrier comprised of a conducting shield to prevent harmful transients from reaching communication electronics. The standard is the first of its kind and is being instituted as MIL-STD-188-125.


Estimating Vaporization Enthalpies Of Organic Compounds With Single And Multiple Substitution, James S. Chickos, Donald G. Hesse, Joel F. Liebman Jan 1989

Estimating Vaporization Enthalpies Of Organic Compounds With Single And Multiple Substitution, James S. Chickos, Donald G. Hesse, Joel F. Liebman

James Chickos

No abstract provided.


Pitch Of Complex Tones With Many High‐Order Harmonics, Adrianus J. M. Houtsma, J. Smurzynski Jan 1989

Pitch Of Complex Tones With Many High‐Order Harmonics, Adrianus J. M. Houtsma, J. Smurzynski

Jacek Smurzynski

Pitch identification and pitch discrimination experiments were performed for complex tones with missing fundamentals between 200 and 300 Hz and with many successive harmonics varying from low (below the 10th) to high (above the 25th) harmonic order. Identification performance was found to degrade with increasing harmonic order from an essentially perfect to an asymptotic level that was clearly less than perfect but much better than chance. Just‐noticeable differences in (missing) fundamental frequency were found to increase, with increasing harmonic order, from a fraction of 1 Hz to an asymptotic level of about 5 Hz. Influence of phase was found only …


An Assessment Of Potential Hazards To The Cassini Spacecraft From Debris Along Satellite Orbits, Robert A. Kolvoord Dec 1988

An Assessment Of Potential Hazards To The Cassini Spacecraft From Debris Along Satellite Orbits, Robert A. Kolvoord

Robert A Kolvoord

No abstract provided.


General Functional Differential Systems With Asymptotically Constant Solutions, William F. Trench Dec 1988

General Functional Differential Systems With Asymptotically Constant Solutions, William F. Trench

William F. Trench

No abstract provided.


Existence Of Solutions Of Functional-Differential Systems With Prescribed Asymptotic Behavior, William F. Trench Dec 1988

Existence Of Solutions Of Functional-Differential Systems With Prescribed Asymptotic Behavior, William F. Trench

William F. Trench

No abstract provided.


On Discrete-Time Sliding Modes, Sergey V. Drakunov, Vadim I. Utkin Dec 1988

On Discrete-Time Sliding Modes, Sergey V. Drakunov, Vadim I. Utkin

Sergey V. Drakunov

No abstract provided.