Describes an experiment on a coupled system in which accurate timing is carried out using a Light Activated Switch (LAS) technique. LAS can be used for a wide range of periodic phenomena, provided the amplitude is sufficiently large to interrupt a light beam. (Author/SK)

A description is given of an inexpensive nuclear magnetic resonance (NMR) spectrometer suitable for use in advanced laboratory courses. Applications to the nondestructive analysis of the oil content in corn seeds and in monitoring the crystallization of polymers are presented. (SK)

A laboratory experiment designed as a model for studying enzyme activity with a basic spectrometer is presented. Included are background information, experimental procedures, and a discussion of probable results. Stressed is the value of the use of Nuclear Magnetic Resonance in biochemistry. (CW)

Described are efforts to organize the research efforts concerning global change. Objectives include the development of long-term monitoring programs, global process research campaigns, and predictive computer models. (CW)

Studies the polarization effect on water by cations and anions. Describes an experiment to illustrate the polarization effect of sodium, lithium, calcium, and strontium ions on the water molecule in the hydration spheres of the ions. Analysis is performed by proton NMR. (MVL)

Describes a laboratory experiment designed to encourage laboratory cooperation among individual undergraduate students or groups. Notes each student contributes results individually and the exchange of data is essential to obtain final results. Uses the polarographic method for determining complex metal ions. (MVL)

Students in the Electronics Engineering Technology program at Pennsylvania College of Technology designed and built a computerized dynamometer platform for testing dc brushless motors. As the capstone experience for EET-320, Measurement and Tests course, students were divided into teams of four and were given three weeks to complete the project.…

A research project was designed to develop and validate instrumentation and procedures for a comprehensive internal and external evaluation of Wisconsin's Vocational, Technical and Adult Education Field/Community Services programs. A review of evaluation literature pertaining to adult and continuing education, the identification of statewide…

Describes the trend toward the use of electronic instrumentation to monitor and measure various parameters in chemical reactions. Stresses that a knowledge of the operational relationships involved in such instruments is essential for students beginning in science. Discusses electrostatic charges, semiconductor crystals, electronic conductors,…

The National Science Foundation (NSF) believes three areas of engineering education require attention: (1) lack of qualified faculty; (2) updating and maintaining instructional instrumentation, equipment, and facilities; and (3) inability to transmit knowledge of some engineering disciplines to students. NSF approaches to solving these problems…

Cites advances in x-ray diffraction, nuclear magnetic resonance, computer modeling, and display to guide the design and analysis of protein structures. Reviews recent advances in knowledge, synthesis techniques, and theory of proteins. (JM)

A gas chromatography (GC) mass spectroscopy (MS) system recently developed by Hewlett-Packard (HP-5987 GC/MS/Data System) is described, illustrating the technological advances that have been achieved with the system. Examples of the data processing and output process are provided to demonstrate the capabilities and application of the system to…

Discusses problems and pitfalls of working with single-pan balances and methods used to advertise their accuracy. Investigated manufacturers knowledge of buoyancy effects, relating provisions and recommendations made by various companies. Provides a routine for intercalibration of weight using dummy weights of approximately known mass. (JM)

Describes an experiment designed to teach students to apply the same statistical awareness to instrumentation they commonly apply to classical techniques. Uses propagation of error techniques to pinpoint instrumental limitations and breakdowns and to demonstrate capabilities and limitations of volumetric and gravimetric methods. Provides lists of…

Uses of Zenith Z-100 microcomputers by chemistry students at Clarkson College are discussed. These include: (1) programing; (2) word processing; (3) numerical methods, statistical/plotting programs; (4) laboratory data acquisition and manipulation; (5) simulations; (6) computer assisted instruction; and (7) computer managed instruction. (JN)