Abstract: A combustion apparatus is disclosed that improves oxidation efficiency without increasing either combustion apparatus size or residence time, where the apparatus includes a combustion zone having a static mixing zone along a length of the combustion zone.

Abstract: A combustion apparatus is disclosed that improves oxidation efficiency without increasing either combustion apparatus size or residence time, where the apparatus includes a combustion zone having a static mixing zone along a length of the combustion zone.

Abstract: A system for measuring the amount of sulfur in a sample is provided comprising a UV fluorescence detector for determining the sulfur dioxide content of the sample and an analyzer for receiving the sulfur dioxide content of the sample from the UV fluorescence detector for evaluating the content of species under investigation and for quantifying the sulfur content in the sample. The UV fluorescence detector comprising an excimer lamp comprising a quartz envelope and a krypton-chloride excimer gas mixture therein.

Abstract: A system for measuring the amount of sulfur in a sample is provided comprising a UV fluorescence detector for determining the sulfur dioxide content of the sample and an analyzer for receiving the sulfur dioxide content of the sample from the UV fluorescence detector for evaluating the content of species under investigation and for quantifying the sulfur content in the sample. The UV fluorescence detector comprising an excimer lamp comprising a quartz envelope and a krypton-chloride excimer gas mixture therein.

Abstract: A UV fluorescence detection system is provided comprising a dielectric barrier-discharge excimer lamp, an applied excitation source for communication with the excimer lamp; a fluorescence chamber having a sample gas containing sulfur dioxide, a light sensitive detector is in operative association with the sample chamber; and a signal analyzing and conditioning device for determining the sulfur dioxide content of the sample. The dielectric barrier-discharge excimer lamp possesses a krypton-chloride excimer fill gas mixture. An excitation interference filter and a fluorescence filter may be used in association with the lamp and chamber.

Abstract: A method and system for performing low level sulfur UV fluorescence measures including an UV interference reduction system which removes or destroys interfering nitrogen oxides. The preferred nitrogen removal systems include introducing ozone into the system in sufficient quantities to destroy any produce NO and optionally a nitrogen sparge or similar nitrogen gas removal system.

Abstract: A new and novel ozone generator with a dual dielectric barrier discharge design is disclosed where high-purity ozone is generated and whose concentration can be varied over a wide range. The simplified design of the ozone generator cell possesses a gas inlet and outlet connected to an annular, sealed dielectric gas envelope that supports both inner and outer electrodes that do not come into contact with the gas. The design eliminates the need for gaskets, o-rings or other methods applied to seal the ozone cell and reduces problems associated with potential interaction resulting from material compatability issues. The applied high voltage is provided by a simple self-resonating, push-pull oscillating circuit whose efficiency is optimized through application of an appropriate impedance matching device. The ozone is concentration is adjusted by varying the pulse width duty cycle of the applied voltage and gas flow rate.

Abstract: A combustion apparatus is disclosed that improves oxidation efficiency without increasing either combustion apparatus size or residence time, where the apparatus includes a combustion zone having a static mixing zone along a length of the combustion zone.

Abstract: An fast analytical system and associated method is disclosed for analytically quantifying oxides of a sample for a given concentration of a desired element in the sample, where the system includes a sample supply system, an oxidizing agent supply system, a furnace system, a detection chamber, a transfer tube interconnecting the detection chamber and the furnace, where the chamber and the transfer line are maintained at an elevated temperature sufficient to reduce or prevent water vapor condensation in either the reaction chamber or the transfer line.

Abstract: A method and system for performing low level sulfur UV fluorescence measures including an UV interference reduction system which removes or destroys interfering nitrogen oxides. The preferred nitrogen removal systems include introducing ozone into the system in sufficient quantities to destroy any produce NO and optionally a nitrogen sparge or similar nitrogen gas removal system.

Abstract: A UV fluorescence detection system is provided comprising a dielectric barrier-discharge excimer lamp, an applied excitation source for communication with the excimer lamp; a fluorescence chamber having a sample gas containing sulfur dioxide, a light sensitive detector is in operative association with the sample chamber; and a signal analyzing and conditioning device for determining the sulfur dioxide content of the sample. The dielectric barrier-discharge excimer lamp possesses a krypton-chloride excimer fill gas mixture. An excitation interference filter and a fluorescence filter may be used in association with the lamp and chamber.

Abstract: A circular saw for more precise movement during cutting comprising a circular blade with a peripheral edge having teeth and a power source to rotate the blade about its axis; a shield covering at least a portion of the blade to protect a user from the peripheral teeth of the blade; a blade plate positionable on the work piece to be cut with an elongated aperture for the passage therethrough of the blade, the blade plate having a notch at its leading edge in alignment with the plane of the blade; a laser device positioned on the shield to project a laser beam in a line from the notch along the workpiece to a line along the direction to be cut; means to power the laser with a visible light; and an optical element to fan the laser beam onto the workpiece in a line within the blade plane and intended direction of blade movement with an angular divergance between about thirty and sixty degrees.