Abstract:
Method and apparatus for enhancing the accuracy of the elevation coordinate in a survey that uses GPS survey measurements to determine location coordinates for a plurality of survey locations. An optimal locally-best-fitting plane is combined with a geoid model that represents a local region of the Earth, in order to decrease the inaccuracy associated with an elevation coordinate in the survey to a fraction of a decimeter.
Abstract:
A blade-mounted total pressure (BMTP) probe for a rotor blade comprises a base segment and an inlet segment. The base segment includes an interface surface having a planar configuration that is complementary to an aerodynamic surface of the rotor blade for detachably mounting the BMTP probe in combination with the rotor blade, an aerodynamically-streamlined body member contiguous with the interface surface that includes a leading edge and first and second flow surfaces, and a fluid communication aperture extending through the aerodynamically-streamlined body member and the interface surface. The inlet segment comprises an inlet defined by a lower wall contiguous with the aerodynamically-streamlined member, opposed sidewalls contiguous with the lower wall, and an upper wall contiguous with the opposed sidewalls. The inlet segment further includes a backwall contiguous with the lower wall, the opposed sidewalls, and the upper wall and wherein the backwall, the lower wall, the opposed sidewalls, and the said upper wall in combination define a collection chamber within the inlet segment. A fluid communication aperture extends through the lower wall in aligned relation with the fluid communication aperture of the base segment. An ejection port is formed through the one opposed sidewall distal from the center of rotation of the main rotor blade.
Abstract:
The present invention is a sample deposition device for depositing a plurality of samples onto a test media substrate, and a method of depositing a plurality of samples onto a planar test media substrate, such as a stationary phase chromatographic medium, agar or tissue. In broadest terms, the device of the present invention comprises (a) a substantially planar support portion defining a plane; and (b) an array of substantially planar absorbent portions releasably connected to the support portion, the absorbent portions aligned substantially parallel to said plane. The absorbent portions may be impregnated with a test sample before use. The present invention also includes a method of depositing one or more samples onto a test media substrate.
Abstract:
This invention provides a primary standard and/or secondary standards for assay for glycated proteins in samples such as blood. The primary standard is composed of a polymer or copolymer of an amino acid, such as lysine, serine or those listed on table 37 (pages 100-110 of the second edition of Organic Chemistry by Robert Morris and Robert Nielson-Boyd) glycated with a known amount of glucose, preferably .sup.14 C glucose or .sup.3 H glucose, and free of unbound glucose. The preferred secondary standards are composed of glycated native protein per se, or a mixture of a glycated native protein and native protein that has been standardized against a primary standard to give the actual glycated protein value. These primary standards and secondary standards may be packaged and sold as a kit that contains a primary standard and/or a secondary standard and the reagents needed to perform the glycated protein assay. These glycated proteins or glycated polyamino acids can be dyed to give colored products for use as standards for the so-called affinity or ion exchange column assays, used to measure glycated protein percentage.
Abstract:
The present invention is a sample deposition device for depositing a plurality of samples onto a test media substrate, and a method of depositing a plurality of samples onto a planar test media substrate, such as a stationary phase chromatographic medium, agar or tissue. In broadest terms, the device of the present invention comprises (a) a substantially planar support portion defining a plane; and (b) an array of substantially planar absorbent portions permanently connected to the support portion, the absorbent portions aligned substantially parallel to said plane. The absorbent portions may be impregnated with a test sample before use. The present invention also includes a method of depositing one or more samples onto a test media substrate.
Abstract:
A freeze-resistant downspout system includes a metal downspout having an interior portion within a building and a contiguous exterior portion outside the building. The exterior portion is shielded from the weather by a thermally insulated shroud so that heat conducted along the downspout from within the building is sufficient to keep the exterior portion from freezing.