The recorded data is also used for positioning purpose, accordingly the data on adjacent tracks is recorded at different clock frequencies so that the data on one track can be discriminated from the data on the other track.

The present invention discloses an economizer for absorbing heat of combustion products, wherein the surfaces of a series of continuous tubes extended through an exhaust gas pipe or duct are lined with glass pipes, the clearance between the exhaust pipe or duct wall and the tubes extended therethrough is sealed with gaskets, and water is circulated through the tubes.

An accessory utilizing a light emitter that is capable of detachably attaching a transparent body such as a gem is provided. Because the transparent body is detachable and re-attachable, it is easily possible to use a plurality of transparent bodies on one accessory. Also, it is possible to use the accessory in a wide variety of situations according to time, place and occasion. Further, providing a family crest, engraved mark, trade mark, illustration and/or the like on the accessory not only em...

Quinazolinones of formulae 1a, 1b, 1c and 1d are disclosed. They are useful for treating cellular proliferative diseases and disorders associated with KSP kinesin activity. ##STR1##

The invention relates to sensor compositions comprising a composite array of individual arrays, to allow for simultaneous processing of a number of samples. The invention further provides methods of making and using the composite arrays.

A cushion having beneficial purposes for both persons having physical disabilities and persons who do not. It is an expandable cushion having a lower chamber for air and an upper chamber for liquid, preferably ordinary water. The water chamber or container is configurated to be over the air container and to have portions at the sides and back of the cushion, which are filled with and forced up by pressure when a person is seated on the cushion to provide a containment for the upper thighs, butto...

In apparatus for supplying an electric power from a power source to a load through a thyristor, an ignition phase angle of which is controlled by a conduction control circuit through an ignition instruction generating circuit, there are provided a circuit for detecting voltage applied across the thyristor, another circuit for converting the detected voltage into a conduction completion phase angle, and still another circuit for displaying a conduction completion phase angle as well as the aforem...

A lighting system utilizing the sunlight comprising in general an optical system for focusing the sun rays at a point, an optical transmission line consisting of optical conductor means with light diffusion holes for transmitting therethrough the focused sun rays to at least one desired point, and an optical system for redistributing the sun rays transmitted through the optical transmission line into at least one desired space or spot.

An information structure called a semaphore serves as a signalling mechanism in process synchronization. The semaphore is used to relate a process and an event which do not appear simultaneously. In accomplishing this, the semaphore is capable of storing the presence of events or resources waiting for processes or, alternatively, the presence of processes waiting for events or resources via a queue.

Methods for utilizing a dental prosthesis are disclosed. In particular, the methods for utilizing a dental prosthesis include applying a retention composition including an effective amount of an orally acceptable retention agent so as to provide sufficient adhesive characteristics to the composition to maintain the prosthesis in position in the mouth of a subject, and an effective amount of sodium bicarbonate to inhibit the growth of bacteria and fungi. Methods for utilizing and/or cleaning dent...