Abstract: A system for positioning an object includes a base and a platform for detachably retaining the object. A first linear actuator is pivotably coupled to a first pivot axis of the platform and a first pivot axis of the base. A second and a third linear actuator are pivotably coupled to a second pivot axis of the base and the first pivot axis of the platform. A fourth linear actuator is pivotably coupled to the second pivot axis of the base and a second pivot axis of the platform. The first, second, third and fourth linear actuators being selectably adjustable in length to position the platform at a select position about a predetermined arc of travel.

Abstract: A communication system includes wireless access points that are distributed along a linear, terrestrial-based communications medium that has an operative interface to the Internet. The wireless access points establish wireless connectivity between end users in residences and businesses to the Internet via the communications medium. The operating channel for each wireless access point is controlled by a spectrum management system to control use of available spectrum in an efficient manner and to minimize interference.

Abstract: A system for positioning an object includes a base and a platform for detachably retaining the object. A first linear actuator is pivotably coupled to a first pivot axis of the platform and a first pivot axis of the base. A second and a third linear actuator are pivotably coupled to a second pivot axis of the base and the first pivot axis of the platform. A fourth linear actuator is pivotably coupled to the second pivot axis of the base and a second pivot axis of the platform. The first, second, third and fourth linear actuators being selectably adjustable in length to position the platform at a select position about a predetermined arc of travel.

Abstract: A communication system includes wireless access points that are distributed along a linear, terrestrial-based communications medium that has an operative interface to the Internet. The wireless access points establish wireless connectivity between end users in residences and businesses to the Internet via the communications medium. The operating channel for each wireless access point is controlled by a spectrum management system to control use of available spectrum in an efficient manner and to minimize interference.

Abstract: A system for positioning an object includes a base and a platform for detachably retaining the object. A first linear actuator is pivotably coupled to a first pivot axis of the platform and a first pivot axis of the base. A second and a third linear actuator are pivotably coupled to a second pivot axis of the base and the first pivot axis of the platform. A fourth linear actuator is pivotably coupled to the second pivot axis of the base and a second pivot axis of the platform. The first, second, third and fourth linear actuators being selectably adjustable in length to position the platform at a select position about a predetermined arc of travel.

Abstract: A magnet array for use with NMR signal acquisition apparatus uses rod-shaped magnets located at the corners of a square. The square lies in the (x-y) plane of a three dimensional Cartesian coordinate system and the long axes of the magnets extend generally along the z-direction such that the polarisation vectors of the magnets lie substantially in the x-y plane. The magnets are arranged to create a substantially uniform magnetic field B0 in a sample volume at the centre of the polygon. The widths of the magnets are less than the length of the sides of the square so that there is a gap between magnets allowing lateral access in the x-y plane to the sample volume. Each magnet may be rotatable about its longitudinal axis to change one and/or both the B0 field direction and magnitude in the sample volume. At least one magnet may be displaceable in a direction orthogonal to its longitudinal axis to change one and/or both the B0 field direction and magnitude in the sample volume.

Abstract: A portable security system. The portable security system includes a wheeled trailer and a telescopic mast that is coupled to the trailer. The mast is pivotable between a first generally horizontal retracted position and a second generally vertical extended position. A cabinet is mounted onto the trailer and houses a control subsystem, a data input subsystem, a data server and a data storage subsystem. At least one input device is connected to the data input subsystem. The data input subsystem receives data from the input device and forwards the data to the data storage subsystem for storage by means of the data server.

Abstract: A system and method for providing geographic location information to of at least one fixed reference device in a wireless network, the method comprising: determining a geographic location of the at least one fixed reference device within an image, such as a Geographic Information System (GIS) image, where the GIS image comprises a plurality of pixels each having an absolute geographic location value associated with it, and where the geographic location of the at least one fixed reference device is defined with respect to the absolute position values associated with at least one pixel that is proximal to an image of the at least one fixed reference device within the GIS image; and providing the determined geographic location information to the at least one fixed reference device.

Abstract: A system and method for management of communication links between nodes in a wireless communication network (100). The system and method perform the operations of estimating an expected rate of change in the characteristics pertaining to communication over a communication link in the network (100), and assigning a value associated with the link based on the expected rate of change. The system and method also adjust the rate of change of the value associated with the link based on the condition of the link.

Abstract: An obstruction is employed in a combustion chamber of an internal combustion engine. The obstruction is located within the chamber to generate turbulence and break-up or disrupt the soot rich zone within a directly injected quantity of fuel that is burning. More specifically, a ring disrupts fuel jets directly injected into the combustion chamber that impact on or are influence by the ring. The ring can be suspended from the piston or from the fire deck. Post-type obstructions help generate turbulence and are also targeted at disrupting the soot rich zone of the burning fuel jets. A method involves disrupting the soot rich zone or reducing soot generated within the combustion chamber and increasing burn rate by impacting the fuel jets on an obstruction within the chamber.

Abstract: A method of operating an internal combustion engine employs exhaust gas recirculation (EGR) in combination with directly injected gaseous fuels that are burned within the engine in a stratified combustion mode. An engine that employs EGR includes an injector adapted to provide a high pressure quantity of fuel into a combustion chamber within a given pressure range, at a given angle and through a nozzle hole size to help provide for EGR tolerance and, consequently, reduce emissions.

Abstract: A method and apparatus generate turbulence and impact on soot rich zone within a burning fuel jet within a combustion chamber of an internal combustion engine. A reservoir accumulates charge and projects the charge into a combustion chamber and into and around the burning fuel directly injected into the combustion chamber. A ring or the fire deck define one or more reservoirs with an orifice for accumulating, directing and ejecting the charge. The method and apparatus are particularly beneficial when employed with gaseous fuels.

Abstract: A portable security system. The portable security system includes a wheeled trailer and a telescopic mast that is coupled to the trailer. The mast is pivotable between a first generally horizontal retracted position and a second generally vertical extended position. A cabinet is mounted onto the trailer and houses a control subsystem, a data input subsystem, a data server and a data storage subsystem. At least one input device is connected to the data input subsystem. The data input subsystem receives data from the input device and forwards the data to the data storage subsystem for storage by means of the data server.

Abstract: A method for purifying a spent acid catalyst from an acid catalyzed chemical reaction that generates a mixture of a product, spent add and tar, includes the steps of separating the mixture of product, spent acid, and tar into a product fraction and a spent acid fraction, said spent acid fraction comprising a mixture of spent acid and tar, and separating the spent acid fraction, by flotation separation, centrifugation, or liquid-liquid coalescence, into a tar fraction and a de-tarred spent acid fraction. The fluidized tar and the de-tarred spent acid can each be further processed to produce concentrated acid.

Abstract: A nuclear magnetic resonance imaging technique is applied to objects undergoing translational motion for analysis of objects on a conveyor passing through an imaging unit. The objects are passed through the imaging module at a predetermined velocity (v), in which there is provided: a spatially uniform, constant magnetic field (B0) substantially parallel to the direction of the velocity (v); a linear magnetic field gradient (Gz) substantially parallel to the direction of the velocity (v); and a radiofrequency field (Bz) pulse transverse to field B0. Selected nuclear magnetic resonance parameters from said objects are then detected for subsequent imaging and analysis.

Abstract: A nuclear magnetic resonance spectroscopic technique is applied to objects undergoing translational motion for chemical analysis of objects on a conveyor passing through a detector module. The objects are passed through the detector module at a predetermined velocity V, in which there is provided a spatially uniform, constant magnetic field B0, substantially parallel to the direction of the velocity v and a radio frequency field B1 pulse transverse to the field B0. Selected nuclear magnetic resonance parameters from the objects passing through the detector module are then used to determine chemical composition or changes therein.

Abstract: A process for the adjustment of signals obtained from an image, in which analogue signals representative of the image are pre-emphasized and converted to digital signals. The digital signals are then de-emphasized and simultaneously or subsequently adjusted.