Abstract: A system for sensing particulate in a combustion gas stream is disclosed. The system transmits light into a combustion gas stream, and thereafter detects a portion of the transmitted light as scattered light in an amount corresponding to the amount of particulates in the emissions. Purge gas may be supplied adjacent the light supply and the detector to reduce particles in the emissions from coating or otherwise compromising the transmission of light into the emissions and recovery of scattered light from the emissions.

Abstract: A system for sensing particulate in a combustion gas stream is disclosed. The system transmits light into a combustion gas stream, and thereafter detects a portion of the transmitted light as scattered light in an amount corresponding to the amount of particulates in the emissions. Purge gas may be supplied adjacent the light supply and the detector to reduce particles in the emissions from coating or otherwise compromising the transmission of light into the emissions and recovery of scattered light from the emissions.

Abstract: This invention is a method and system for controlling engine-out exhaust species of a combustion engine having a plurality of cylinders by providing a means for controlling combustion parameters in individual cylinders, grouping the individual cylinders into a lean set and a rich set of one or more cylinders, combusting the lean set in a lean combustion parameter condition having a lean air:fuel equivalence ratio, combusting the rich set in a rich combustion parameter condition having a rich air:fuel equivalence ratio, and providing a means for adjusting the lean set and the rich set of one or more cylinders to generate net-lean combustion. The exhaust species have elevated concentrations of hydrogen and oxygen.

Abstract: A portable workstation includes a storage structure and an integrated dolly. The storage structure resembles a generally-upright cabinet having a top platform with upward-folding expansion leaves. The storage structure is defined by a pair of vertical side walls spaced apart by a back wall. One fixed shelf and two folding shelves extend between the side walls. The shelves are useable as steps, but are securable in alternate, bin-forming positions. A box-storage chamber and flexible straps provide storage locations for tools. A wheeled dolly is attached to the storage structure by a pair of slide pins.

Abstract: A multi-purpose utility cart having a rigid wheeled platform with a cushion secured to an upper surface of the platform and a set of interchangeable wheels along a lower surface. A support bracket having a rotatable pad is coupled to pivot members mounted on the platform by leg members. The leg members are movable and can be secured in most any angular position thereby allowing the support bracket to be used as a back support, a chest support, or a head support.

Abstract: Apparatus and method are described for the quantitative analysis of a specific specie within a sample. The analysis has sufficient sensitivity for the detection of as little as one atom of the desired species. The method is accomplished by bombarding a sample with a highly focused charged particle beam; for example, a beam of positive argon ions having an energy from five to thirty kilovolts and a current of one milliampere or greater. This beam impinging upon the sample creates a cloud including secondary ions and neutral particles of the constituents of the sample. The cloud is irradiated with a laser beam having selected wavelengths therein for the unique ionization of the desired specie by means of resonance ionization spectroscopy (RIS). In most applications some energy and/or mass discrimination is required. The energy discrimination can be accomplished by passing the RIS ions through an energy filter, with the ions emanating therefrom having a narrow range of energy.

Abstract: Apparatus and methods of operation are described for determining, with isotopic selectivity, the number of noble gas atoms in a sample. The analysis is conducted within an evacuated chamber which can be isolated by a valve from a vacuum pumping system capable of producing a pressure of 10.sup.-8 Torr. Provision is made to pass pulses of laser beams through the chamber, these pulses having wavelengths appropriate for the resonance ionization of atoms of the noble gas under analysis. A mass filter within the chamber selects ions of a specific isotope of the noble gas, and means are provided to accelerate these selected ions sufficiently for implantation into a target. Specific types of targets are discussed. An electron measuring device produces a signal relatable to the number of ions implanted into the target and thus to the number of atoms of the selected isotope of the noble gas removed from the gas sample.