The absorber considered in this paper consists of a single layer of lossy dielectric material backed by a good conductor. It is assumed that both the magnetic and the electric dissipation factors of the dielectric may be ...

"Digested sludge lagoons were originally considered temporary sludge storage devices; however, it was found that with prolonged storage a lagoon became an effective drying unit. Since they provide one of the more economical ...

"The overhead projector has been used as a teaching aid for several years, in elementary education and in engineering drawing. No use of an overhead projector in kinematics has been reported, nor has there been a statistical evaluation of its...

"The elastic modulus of concrete is an important parameter in reinforced concrete design and analysis. With the increased use of lightweight aggregates for structural concrete a better understanding of the relationship ...

"In the current literature, two different approaches to sampled-data theory prevail. One approach emphasizes the z-transformation methods for design and synthesis. The other approach emphasizes the Laplace transformation ...

"Electric field meters are used for the measurement of the electric field at the surface of the earth, on airplanes and on satellites. For research work and calibration of the meters, a uniform electric field facility is ...

"This paper presents the procedures used and the results obtained in a series of static load tests designed to study the mechanism of load transfer between adjacent precast bridge-slab sections. These tests were undertaken as one phase of a general...

"To determine the potential of a spacecraft, an electric field meter is needed to measure the field at the surface and in the neighborhood of the craft. A search was made for field measuring methods which would not involve ...

"Numerical calculations based on the higher Chapman-Enskog approximations show that mutual diffusion coefficients calculated from binary mixture viscosity data agree within experimental uncertainty with the measured D12 ...

The Electronic Position Indicator is a radar-like device for the study of hand motions. First, a rederivation of the theory is presented to show its application to this situation. Then, the accuracy of the positional ...

The microwave absorbing structure considered here consists of a homogeneous lossy dielectric material backed by a good conductor. Some previous work has been done on obtaining the electric and magnetic parameters of a ...

obtained by making zero as many terms as possible of the series for the field along the axis of the system. The parameters are presented in the form of tables and curves."--Page 1....

"In recent years interest in lightweight concrete has become widespread, not only on account of its light weight, which is desirable in floor slabs, walls and partitions, but also because of its high thermal and sound ...

"Probe coils are useful in determining the properties of metals on which the coil is placed. An analysis and an equivalent circuit of the coil on a metal surface are needed and are presented here. The coil was assumed to ...