Abstract: A controller for controlling a motor of a drill comprising an output of a signal for controlling a speed of rotation of the motor, a processor for producing the signal, wherein the signal is automatically varied according to a waveform, wherein one or more characteristics of the waveform is determined by a material to be drilled and a diameter of the bit.

Abstract: A collapsible dunnage box is provided that includes a box base and first and second opposed base sidewalls attached to the box base on opposing sides of the box. First and second opposed top sidewalls are pivotally attached to the top edge of respective ones of the base sidewalls. First and second opposed top endwalls are provided to form a box enclosure. The base endwalls are pivotally-mounted to the top endwalls and are moveable between a lowered, vertical deployed position enclosing respective ends of the box and a raised, horizontal stowed position to contain and store dunnage positioned in an upper portion of the box.

Abstract: A collapsible dunnage box is provided that includes a box base and first and second opposed base sidewalls attached to the box base on opposing sides of the box. First and second opposed top sidewalls are pivotally attached to the top edge of respective ones of the base sidewalls. First and second opposed top endwalls are provided to form a box enclosure. The base endwalls are pivotally-mounted to the top endwalls and are moveable between a lowered, vertical deployed position enclosing respective ends of the box and a raised, horizontal stowed position to contain and store dunnage positioned in an upper portion of the box.

Abstract: Method and apparatus for a desk/chair assembly having sheets of ballistic material attached around its top and outer edges and a chair portion also having ballistic material attached thereto for use by the occupant for seating purposes wherein the chair portion is attached to the desk portion using a pivoting arm so as to allow the chair portion to be moved between multiple positions including the normal seated position, an open position and a closed position wherein a user can hide inside a safety zone created by the chair and desk assembly. A pivoting arm is attached to an underside of the desk top on one end and fixedly connected to the underside of the chair seat on its other end. A handle is also provided for moving the chair portion between its various positions.

Abstract: An orthopaedic surgical device comprises a first sensor component and a second sensor component. Each sensor component includes a paddle set to contact a proximal tibia and a distal femur of a patient. The first sensor component and the second sensor component being movable with respect to one another to extend one paddle set beyond the other paddle set, and each paddle set includes cutouts for the clearance of the patellar tendon to avoid the need to evert the patella during use.

Abstract: The thermal signature of a vehicle is reduced by providing a thermal shield (20) on at least one of the wheels (10) covering at least a greater part of the wheel area, in combination with a further shield (42, 50) around or depending from the wheel arch (19) and which overlaps the wheel-mounted shield (20). The shields (20, 42, 50) may also co-operate to reduce the generation of a dust cloud (45, 46) by the vehicle.

Abstract: An orthopaedic surgical device comprises a first sensor component and a second sensor component. Each sensor component includes a paddle set to contact a proximal tibia and a distal femur of a patient. The first sensor component and the second sensor component being movable with respect to one another to extend one paddle set beyond the other paddle set, and each paddle set includes cutouts for the clearance of the patellar tendon to avoid the need to avert the patella during use.

Abstract: An orthopaedic surgical device comprises a first sensor component and a second sensor component. Each sensor component includes a paddle set to contact a proximal tibia and a distal femur of a patient. The first sensor component and the second sensor component being movable with respect to one another to extend one paddle set beyond the other paddle set, and each paddle set includes cutouts for the clearance of the patellar tendon to avoid the need to avert the patella during use.

Abstract: The invention provides compact haptic and augmented virtual reality system that produces an augmented reality environment. The system is equipped with software and devices that provide users with stereoscopic visualization and force feedback simultaneously in real time. High resolution, high pixel density, head and hand tracking ability are provided. Well-matched haptics and graphics volumes are realized. Systems of the invention are compact, making use of a standard personal display device, e.g., a computer monitor, as the display driver. Systems of the invention may therefore be inexpensive compared to many conventional virtual reality systems.

Abstract: An orthopaedic surgical device comprises a first sensor component and a second sensor component. Each sensor component includes a paddle set to contact a proximal tibia and a distal femur of a patient. The first sensor component and the second sensor component being movable with respect to one another to extend one paddle set beyond the other paddle set, and each paddle set includes cutouts for the clearance of the patellar tendon to avoid the need to avert the patella during use.

Abstract: A process for constructing an artificial coding sequence is provided. The process comprises providing an enzyme adapted to ligate DNA duplexes containing selected codons into multimers that preserve the reading frame of those codons in a reaction facilitated by the presence of a condensing agent, such as polyethylene glycol. These open reading frames may be useful for expressing proteins with a restricted amino acid content.

Abstract: This invention addresses how an end user can create an electroluminescent device (1, 31) using basic components obtained by the end user as retail items. The layers or subassemblies (15, 17) are created first. Then the layers are assembled to form a completed device customized as selected by the end user. The subassemblies may be created layer-by-layer by thermal inkjet. Elements used typically will be made by manufacturers and sold commercially separately. This encompasses the printing of conductive patterns for electroluminescence on paper. In one aspect a display has a main body that may be permanent and useful indefinitely, while a part carrying the conductive pattern defining the display is readily removed and is replaced by another such part on which a new conductive pattern is printed. For tight contact with the main body, the display provides releasable pressure. Air pockets are minimized with a thin layer of highly viscous dielectric liquid.

Abstract: The invention provides compact haptic and augmented virtual reality system that produces an augmented reality environment. The system is equipped with software and devices that provide users with stereoscopic visualization and force feedback simultaneously in real time. High resolution, high pixel density, head and hand tracking ability are provided. Well-matched haptics and graphics volumes are realized. Systems of the invention are compact, making use of a standard personal display device, e.g., a computer monitor, as the display driver. Systems of the invention may therefore be inexpensive compared to many conventional virtual reality systems.

Abstract: A medical diagnostic method using systolic and diastolic blood pressures, and pulse frequency of a patient is provided to compute a normalized diastolic distensibility value and a normalized peripheral resistance value, and to automatically compute the product of the normalized diastolic distensibility value and the normalized peripheral resistance value to generate a first product value. The first product value is compared to a stored distribution of normalized diastolic distensibility and a normalized peripheral resistance values for comparable individuals to determine if the first product value is equivalent to a value determined to indicate an abnormal condition. Particular values of the computed parameters aid in determining the etiology of hypertension and direct selection of pharmacotherapy.

Abstract: Some embodiments of the present invention provide a waveguide apparatus for transferring light to a weld area. The waveguide apparatus can include a waveguide comprising a material having a first index of refraction and having at least one wall defining at least one cavity. The assembly can also include a filler material positioned within the at least one cavity and having a second index of refraction less than the first index of refraction. Also, some embodiments of the present invention provide a laser welding assembly in which a waveguide apparatus is used to weld materials, a method of laser welding materials using a waveguide, and a method of manufacturing such a waveguide.

Abstract: A method of assembling a print head that includes the steps of: (a) providing a print head base including a nozzle and at least one ink channel; (b) mounting in fluid communication with the at least one ink channel of the print head base an ink regulator that includes: (i) a pressurized chamber including an ink inlet in fluid communication with an ink source, an ink outlet in fluid communication with the at least one ink channel of the print head base, and an exterior flexible wall having an inner surface facing an interior of the pressurized chamber, (ii) a valve biased to restrict fluid communication between the ink source and the pressurized chamber, where the exterior flexible wall actuates the valve to overcome the bias in response to a predetermined pressure differential across the exterior flexible wall to provide fluid communication between the ink source and the pressurized chamber, where the fluid communication between the pressurized chamber and the ink source decreases the pressure differential ac

Abstract: Methods and systems are provided for acquiring seismic data. An ambient electromagnetic signal having a known time dependence is transmitted for propagation within a survey area. The ambient electromagnetic signal is received at distinct geographic locations with independently operating data acquisition units positioned at the distinct locations. Data representing acoustic signals received from the Earth at the distinct geographic locations are collected with the data acquisition units. The collected acoustic signals for the distinct geographic locations are synchronized by correlating the known time dependence of the propagated electromagnetic signal with time dependencies of the collected acoustic signals.

Abstract: A self-contained data acquisition unit is provided for acquiring seismic data. The unit has a microprocessor and an antenna adapted to receive an electromagnetic signal. A decoder is connected with the microprocessor and adapted to convert received electromagnetic signals to dual-tone multiple-frequency (“DTMF”) digits. A geophone interface is provided with a geophone for collecting acoustic data incident on the geophone. A memory is connected with the geophone interface for storing a representation of the collected acoustic data and for storing a representation of a reference electromagnetic signal to be used in synchronizing acoustic data collected by other data acquisition units. A battery power source is connected with the microprocessor.

Abstract: A method of fabricating a delivery conduit adapted to provide fluid communication between an off-carrier ink source and a printhead, the method comprising the steps of: (a) providing an ink conduit adapted to be in fluid communication with an off-carrier ink source and a printhead; and (b) laminating a fluid barrier layer over the ink conduit to substantially inhibit at least one of permeation of a fluid into the ink conduit from an external environment and permeation of a fluid from the ink conduit to the external environment.

Abstract: Apparatus and methods are provided for simultaneously retrieving data from multiple data acquisition units and for recharging such data acquisition units. The data offload and charging unit comprises a frame that defines stations for holding the data acquisition units and a host computer. A combined power and communications port at each such station is adapted to interface with one of the data acquisition units such that power may flow from the data offload and charger unit to that data acquisition unit and data may flow from that data acquisition unit to the host computer substantially simultaneously. Communications links are provided between the host computer and each combined power and communications port.