Abstract: This invention is directed to chess pieces for playing chess, more specifically to large three dimensional game pieces that are associated with outdoor game playing surfaces in which oversize game pieces are physically moved about a board representation that the player actually walks on. Each of the game pieces has a plurality of radially positioned interconnected panel elements which are removably secured to a support base and are collapsible upon one another after use for storage and transportation.

Abstract: A hub involving a large geographical area (e.g., states) communicates with other hubs and with spokes involving smaller geographical areas within the hub area. Selective hubs and spokes form a network in which they communicate messages to one another to enhance a public safety activity. A dynamic response group formed from individuals in the hub and spokes may also be included in the network. The communication between the hubs and spokes may be voluntary and may occur through Radix switches which identify the sender and the recipient, process the message and pass the processed message to the recipient. Each group or individual may be invited, or ask to be invited, into the network. Each group or individual may leave the network voluntarily or at the network's request. The groups and individuals act in the network on a coordinated basis to enhance the public safety activity.

Abstract: A method for determining the quantity and identity of an electrochemically convertible substance in a gas sample. The substance is converted in an electrochemical sensor producing an electrical output. The characteristic parameters of a curve-defining equation y(t)=k×(e−axt−e−bxt) are calculated based on three measurements of output at times t, 2t and 4t. The integral under all or part of the curve is calculated to determine the quantity of the substance. The equation parameters are compared with standard values to determine the identity of the substance.

Abstract: A method for determining the quantity and identity of an electrochemically convertible substance in a gas sample. The substance is converted in an electrochemical sensor producing an electrical output. The characteristic parameters of a curve-defining equation y(t)=k×(e−axt−e−bxt) are calculated based on three measurements of output at times t, 2t and 4t. The integral under all or part of the curve is calculated to determine the quantity of the substance. The equation parameters are compared with standard values to determine the identity of the substance.

Abstract: A method for determining the quantity and identity of an electrochemically convertible substance in a gas sample. The substance is converted in an electrochemical sensor producing an electrical output. The characteristic parameters of a curve-defining equation y(t)=k×(e−axt−e−bxt) are calculated based on three measurements of output at times t, 2t, and 4t. The integral under all or part of the curve is calculated to determine the quantity of the substance. The equation parameters are compared with standard values to determine the identity of the substance.