Abstract: A high power top mounted slotted coaxial broadcast antenna for broadband multi-channel applications is achieved via applying phase cancelation through multiple feeds. The effect that external transmission line feeds have on the circularity of the azimuth pattern is reduced using parasitic tubes near the surface of the slot apertures.

Abstract: CNG and/or other types of fuel can be placed in the space between the tractor and the front of the trailer or internal to the cargo volume of the trailer. The tanks can be mounted permanently on the front of the trailer or they could reside on the tractor and be transferred to the front of the trailer after hook up. After the tractor hooks up to a trailer, the tanks are lifted up via two jacks operating at two lift points near the top at each end of the tank module framework, the tanks are then translated backward by a single actuator operating on the midpoint of the horizontal jack support beam which is riding on the tractor frame rails. Then the tanks are lowered to rest on detachable cantilevers attached to the steel understructure near the front of the trailer.

Abstract: The present invention relates to a lock assembly which includes a lock body. The lock body is adapted to receive a lock barrel. The lock barrel has a plurality of passages. Each of the passages is in communication at one end with the lock body and open at the other end. The lock assembly also includes at least one wafer and a lower pin part. The wafer is received in one of the passages. The lower pin part is received in at least one of the remainder of the passages. The wafer has a column. One end of the column is adapted to include a key engaging surface while the other end is adapted to rest on a wall of the lock body. The lock barrel has a key slot which is in communication with the passages. The key slot is adapted to receive a key with a low cut adapted to correspond to the key engaging surface. The column is so configured as to provide a gap between the key engaging surface and the low cut when the key is a bump key.

Abstract: A venturi assembly for a turbine combustor includes a first outer annular wall and a second intermediate annular wall radially spaced from each other in substantially concentric relationship. The first outer annular wall and said second intermediate annular wall shaped to define a forward, substantially V-shaped throat region, and an aft, axially extending portion. A third radially innermost annular wall is connected to the second intermediate annular wall at an aft end of said throat region. A first plurality of apertures is provided in the first outer annular wall in the substantially V-shaped throat region, and a second plurality of apertures is provided in the aft, axially extending portion of said second intermediate annular wall so that cooling air flows through the first and second pluralities of apertures to impingement cool the third radially innermost annular wall.

Abstract: A venturi assembly for a turbine combustor includes a first outer annular wall and a second intermediate annular wall radially spaced from each other in substantially concentric relationship. The first outer annular wall and said second intermediate annular wall shaped to define a forward, substantially V-shaped throat region, and an aft, axially extending portion. A third radially innermost annular wall is connected to the second intermediate annular wall at an aft end of said throat region. A first plurality of apertures is provided in the first outer annular wall in the substantially V-shaped throat region, and a second plurality of apertures is provided in the aft, axially extending portion of said second intermediate annular wall so that cooling air flows through the first and second pluralities of apertures to impingement cool the third radially innermost annular wall.

Abstract: The present invention relates to a lock assembly which includes a lock body. The lock body is adapted to receive a lock barrel. The lock barrel has a plurality of passages. Each of the passages is in communication at one end with the lock body and open at the other end. The lock assembly also includes at least one wafer and a lower pin part. The wafer is received in one of the passages. The lower pin part is received in at least one of the remainder of the passages. The wafer has a column. One end of the column is adapted to include a key engaging surface whilst the other end is adapted to rest on a wall of the lock body. The lock barrel has a key slot which is in communication with the passages. The key slot is adapted to receive a key with a low cut adapted to correspond to the key engaging surface. The column is so configured as to provide a gap between the key engaging surface and the low cut when the key is a bump key.

Abstract: A method for isolating plasmids DNA from a DNA containing material which comprises plasmid DNA and genomic DNA, comprising extracting the plasmid DNA into a water-immiscible organic solvent, a chaotrope and water under conditions to denature the genomic DNA and recovering the plasmid DNA from the organic phase.

Abstract: A golf swing training device includes a pad having a light-reactive material on one side of the pad, and an indicator having a light source capable of striking the light-reactive material on the pad and creating a visual representation of the light on the pad. The pad includes printed indicia on the light-reactive material in order to illustrate the proper alignment and path for a putting stroke. An individual can place a golf ball on the pad and attach the indicator to the putter, and perform a putting stroke to strike the golf ball on the pad. The movement path of the putter head over the pad is visually illustrated by the reaction of the light source with the light-reactive material such that the individual can compare the actual putting stroke indicated by the light source path on the pad to the printed proper path indicia for the putting stroke.

Abstract: A golf swing training device includes a pad having a light-reactive material on one side of the pad, and an indicator having a light source capable of striking the light-reactive material on the pad and creating a visual representation of the light on the pad. The pad includes printed indicia on the light-reactive material in order to illustrate the proper alignment and path for a putting stroke. An individual can place a golf ball on the pad and attach the indicator to the putter, and perform a putting stroke to strike the golf ball on the pad. The movement path of the putter head over the pad is visually illustrated by the reaction of the light source with the light-reactive material such that the individual can compare the actual putting stroke indicated by the light source path on the pad to the printed proper path indicia for the putting stroke.

Abstract: A retractable radome strake is disclosed that includes an assembly of finger elements. The assembly of finger elements, when coupled to a radome, deflect at wind speeds greater than approximately twenty mph or wind pressures greater than approximately one psf. Accordingly, the retractable radome strake does not unnecessarily contribute to the wind load of a radome enclosed antenna structure when the strakes are not needed.

Abstract: A retractable radome strake is provided that includes an assembly of finger elements. The assembly of finger elements, when coupled to a radome, deflect at wind speeds greater than approximately twenty mph or wind pressures greater than approximately one psf. Accordingly, the retractable radome strake does not unnecessarily contribute to the wind load of a radome enclosed antenna structure when the strakes are not needed.

Abstract: A method for isolating nucleic acid which comprises:

Abstract: A method and apparatus for detecting and tracking a coded signal within a noisy background environment, wherein the signal is correlated over subintervals of time both in-phase and in quadrature, stored indices which represent all possible paths of the signal phase are retrieved, in-phase and quadrature sums are formed wherein the first term of the in-phase sum is the in-phase correlated signal over the first time subinterval and the first term of the quadrature sum is the quadrature correlated signal over the first time subinterval and wherein successive terms are correlated signals from successive time subintervals which are selected based upon the value of the retrieved index, and the true phase path of the signal is estimated by determining the correlation sum having the maximum absolute value.

Abstract: According to the present invention, there is provided a multiwell device including a multiwell plate having at least one well, wherein each well has an open end portion and a sealing mechanism disposed over each well. The sealing mechanism prevents the loss of contents from each well after the sealing mechanism receives and is penetrated by a material transfer device during a material transfer procedure. Additionally, the present invention provides for a sealing mechanism for being disposed over a plurality of wells of a multiwell plate. The sealing mechanism prevents loss of content from the wells during a material transfer procedure. The present invention also provides for a method of transferring material from the wells of the multiwell device including the steps of puncturing the sealing matrix with the material transfer device and preventing cross-contamination of the content with other wells.

Abstract: A method for isolating nucleic acid which comprises: p1 (a) applying a sample comprising cells containing nucleic acid to a filter, whereby the cells are retained as a retentate and contaminants are removed; p1 (b) lysing the retentate from step (a) whilst the retentate is retained by the filter to form a cell lysate containing the nucleic acid; p1 (c) filtering the cell lysate with the filter to retain the nucleic acid and remove remaining cell lysate; p1 (d) optionally washing the nucleic acid retained by the filter; and p1 (e) eluting the nucleic acid, wherein the filter composition and dimensions are selected so that the filter is capable of retaining the cells and the nucleic acid.

Abstract: A retroreflective attitude marker includes at least two intersecting reflecting planes oriented at 90 degrees with respect to one another, and having the property that incident laser beams which are perpendicular to the line of intersection of the two planes are reflected directly back to the laser source. Each retroreflective attitude marker therefore has a single retroreflecting plane perpendicular to line of intersection of the two mutually perpendicular planes. Using three layer illuminator/receivers, directed toward a spinning object, on which a retroreflective attitude marker is located, the rate of spin and the orientation of the spin axis of the object on which the retroreflective marker is located, may be determined mathematically.

Abstract: A control method and system for minimizing the on-peak power demand of a residential electric utility user having a plurality of loads is implemented by determining the average energy demand over predetermined sliding time windows and comparing them with a control point. Non-priority loads are shed in an attempt to decrease the demand below the control point. If the energy demand is still above the control point after all non-priority loads are shed, the control point is dynamically adjusted upward and no priority loads are shed. Loads are shed by transmitting bits of information to the loads when the average energy demand over the predetermined time windows increases beyond the control point. Upon receiving bits of information indicating a load should be shed, the receiver deenergizes its load. The bits of information are synchronized to the zero crossing of the AC line. The bits are transmitted simultaneously and periodically.