Abstract: A system and method for preventing cracks in structural concrete associated with a building structure, the building structure having one or more wooden support columns. Each wooden support column has a base supported by a ground surface and is provided with a crack prevention member having a first, upper or top surface and a second, lower or bottom surface; an outer side wall; and an inner side wall defining a cut-out portion; the base of the wooden support beam is positioned within the cut-out portion. A concrete floor is poured on the ground surface no higher than the level of the first, upper surface of the crack prevention member, and no floor concrete or other structural concrete contacts the wooden support column. The crack prevention member may comprise various materials including rubber, plastic, resin, or other polymeric material and combinations thereof.

Abstract: A system and method for preventing cracks in structural concrete associated with a building structure, the building structure having one or more wooden support columns. Each wooden support column has a base supported by a ground surface and is provided with a crack prevention member having a first, upper or top surface and a second, lower or bottom surface; an outer side wall; and an inner side wall defining a cut-out portion; the base of the wooden support beam is positioned within the cut-out portion. A concrete floor is poured on the ground surface no higher than the level of the first, upper surface of the crack prevention member, and no floor concrete or other structural concrete contacts the wooden support column. The crack prevention member may comprise various materials including rubber, plastic, resin, or other polymeric material and combinations thereof.

Abstract: A system for preventing cracks in a concrete floor associated with a building structure, the building structure having a plurality of support columns for supporting the building structure, is provided. Each support column has a base with at least three sides and is embedded in a ground surface underneath the building structure. The system also includes one or more crack prevention members having a first surface and a second surface, an outer side wall and an inner side wall defining a cut-out portion. The crack prevention member may comprise various materials including rubber, plastic, resin, or other polymeric material and combinations thereof.

Abstract: An optoelectronic component has a lens that is formed in the surface of an encapsulant surrounding a semiconductor diode element. With respect to emitters, the lens reduces internal reflection and reduces dispersion to increase overall efficiency. With respect to detectors, the lens focuses photons on the active area of the detector, increasing detector sensitivity, which allows a detector having a reduced size and reduced cost for a given application. The lens portion of the encapsulant is generally non-protruding from the surrounding portions of the encapsulant reducing contact surface pressure caused by the optoelectronic component. This non-protruding lens is particularly useful in pulse oximetry sensor applications. The lens is advantageously formed with a contoured-tip ejector pin incorporated into the encapsulant transfer mold, and the lens shape facilitates mold release.

Abstract: A physiological sensor has intensity compensation introduced along an optical path from emission to detection so as to compensate for unequal tissue attenuation as a function of wavelength. The sensor has emitters configured to transmit optical radiation having multiple wavelengths into a tissue site. At least one detector is capable of receiving the optical radiation after tissue attenuation. An equalization is capable of compensating optical radiation intensity so as to account for differences in tissue attenuation across at least a portion of the multiple wavelengths.

Abstract: A physiological sensor has emitters configured to transmit optical radiation having multiple wavelengths in response to corresponding drive currents. A thermal mass is disposed proximate the emitters so as to stabilize a bulk temperature for the emitters. A temperature sensor is thermally coupled to the thermal mass. The temperature sensor provides a temperature sensor output responsive to the bulk temperature so that the wavelengths are determinable as a function of the drive currents and the bulk temperature.