New and distinct varieties of Chrysanthemum cinerariaefolium plants exhibit environmental stress tolerance over a temperature range extending as low as about 17.degree. F. and as high as about 115.degree. F., and are also capable of producing flowers having an endogenous pyrethrin content of at least about 1.5%. The new varieties include both triploid plants which are largely sterile, and diploid plants which exhibit good cross fertility.

Cracks in bridges or other structures are detected by applying a thermal gradient to the test structure in a selected region so heat flows from left to right. A first image of the thermal gradient with heat flowing from left to right is taken and stored for further processing. Next a thermal gradient is applied so heat flows from right to left through the selected region. A second thermal image is taken and stored of the heat flowing from right to left. An image taken before a thermal gradient i...

A fault tolerant memory system is described including a plurality of memory chips arranged to produce an array of addressable locations. Each addressable location comprises a plurality of data bits and a plurality of check bits for checking the integrity of all the data bits and check bits at a given addressable location. A pool of spare chips including at least two spare chips are available for assignment to replace any of said memory chips or a previously assigned spare chip in the event that ...

A fault-tolerant HVAC system for use in a single or multi-zoned system, capable of continued operation in the event of a thermostat, or other sensing device malfunction. An HVAC controller controls the operation of an HVAC unit in accordance with a temperature signal output from the thermostat and indicative of air temperature of a conditioned space proximate the thermostat. The HVAC controller detects a thermostat malfunction and, in response thereto, instead controls the operation of the HVAC ...

A power converter having fault tolerant capability for use with a switched relucance machine isolates power converter legs in the event of a failed component coupled to the DC bus of the power converter.

Embodiments include a computing system, a device, and a method. A computing system includes a processor subsystem having an adjustable operating parameter. The computing system also includes an information store operable to save a sequence of instructions. The computing system further includes a controller module. The controller module includes a monitor circuit for detecting an incidence of an operating-parameter-caused error corresponding to an execution of an instruction of the sequence of in...

A dental composition compatible with acidic dental primers/adhesives, the dental composition comprising (A) 5% (w/w) to 90% (w/w) of at least one polymerizable monomer having at least one ethylenically unsaturated vinyl, acrylate, or methacrylate group; (B) 0.01% (w/w) to 10% (w/w) of at least one compound of structure ##STR00001## where each of R1, R2, and R3 may be the same or different and is independently selected from H, alkyl, alkoxyl, aryl, acyl, allyl, pyridyl, --OH, alkenyl, aralkyl, cy...

In an integrated circuit, a radiation tolerant static random access memory device comprising a first inverter having an input and an output, a second inverter having an input and an output. A first resistor is coupled between the output of the first inverter and the input of the second inverter. A second resistor is coupled between the output of the second inverter and the input of the first inverter. A first write transistor is coupled to the output of the first inverter and has a gate coupled ...

A multicasting network includes a number of routers that are connected together to form a ring. The routers include a source router that identifies incoming multicasting data packets, and forwards the multicasting data packets in both directions on the ring. The routers also include forwarding routers that identify incoming multicasting data packets, and forwards the multicasting data packets in only one direction on the ring. Further, each ring has two terminating routers that receive forwarded...

An electrical connector having a plug assembly and a socket assembly is described. The plug assembly includes a plug body and an outer barrel with an inner conductive receptacle electrically coupled to a first conductor in the plug body. The socket assembly includes a socket body movably held within an outer housing by a positioning ring, the socket body having a socket barrel with a second conductor fixed therein to be received in the conductive receptacle of the plug assembly. The plug assembl...