摘要:
A method incorporating an antenna and RF circuitry into the object acting as a substrate includes modeling the object as a three-dimensional object, and designing the antenna and RF circuitry for direct placement on the surface of the object. The step of designing is at least partially based on the size, three-dimensional shape, and material properties of the surface of the object acting as the substrate. The step of designing is preferably performed through use of an evolutionary optimizer implemented using parallel computing devices.
摘要:
The invention provides an apparatus and methods for depositing materials on a substrate, and for performing other selected functions, such as material destruction and removal, temperature control, imaging, detection, therapy and positional and locational control. In various embodiments, the apparatus and methods are suitable for use in a tabletop setting, in vitro or in vivo.
摘要:
The invention provides an apparatus and methods for depositing materials on a substrate, and for performing other selected functions, such as material destruction and removal, temperature control, imaging, detection, therapy and positional and locational control. In various embodiments, the apparatus and methods are suitable for use in a tabletop setting, in vitro or in vivo.
摘要:
A compact integrated biosensor has an integrated light source and integrated optical detectors made with gratings, dielectric coating, or prism for specific wavelength selection to define signatures that identify elements, biohazardous materials, environmentally hazardous materials, biological substance or any chemical substance on the sample holders. A micropump draws gas, ambient fluids and samples to the sample holders. Electrical signals are provided from the optical detectors on output lines to the microprocessor. A device connected to the microprocessor compares characteristic responses to actual signal parameters. An output indicates the presence (or absence) of particular biological, chemical or environmentally hazardous material. A battery, fuel cell or solar cell operated power supply provides electrical energy to the integrated light source and optical detectors. An ambient detector may provide a sample and hold memory for later releasing qualitative and quantitative information concerning the biosensor's environment and environmental history. Output of the biosensor may be continuous, periodical or on demand, or connected to a read-out device. The biosensor is usable as a badge by personnel or is attached to vehicles or mobile or stationary equipment, or to remote collection vehicles such as drones.
摘要:
A micro-helix antenna. The antenna comprises a helically-shaped conductive element disposed on a dielectric core. The diameter of the helix formed by the conductive element is very small relative to the wavelength of the antenna, preferably no more than about 1/100th of the wavelength. Having such a small diameter, this micro-helix antenna can be further compressed into two- and three-dimensional shapes, such as spirals, helices and meandering or stochastic patterns. The micro-helix antenna can be created by pressing a fine wire into a helical shape. Alternately, the helical conductor can be formed by a laser ablation process or laying down the helical shape using a direct-write process.
摘要:
A method and apparatus for managing manned and automated utility vehicles, and for picking up and delivering objects by automated vehicles. A machine vision image acquisition apparatus determines the position and the rotational orientation of vehicles in a predefined coordinate space by acquiring an image of one or more position markers and processing the acquired image to calculate the vehicle's position and rotational orientation based on processed image data. The position of the vehicle is determined in two dimensions. Rotational orientation (heading) is determined in the plane of motion. An improved method of position and rotational orientation is presented. Based upon the determined position and rotational orientation of the vehicles stored in a map of the coordinate space, a vehicle controller, implemented as part of a computer, controls the automated vehicles through motion and steering commands, and communicates with the manned vehicle operators by transmitting control messages to each operator.
摘要:
Apparatus and method for attenuating fluid foil tip vortices, featuring a "Coanda tip" and a "Coanda curtain." The fluid foil tip has a Coanda surface and means for discharging compressed fluid adjacent thereto; a resultant fluid barrier is formed generally chordwise and perpendicular to the fluid foil plane and tangential to the fluid foil tip upon Coanda entrainment and deflection of the discharged compressed fluid. The fluid barrier prevents crossflow from the higher pressure fluid region to the lower pressure fluid region, the fluid regions being separated by the fluid foil when moving relatively through a fluid, the fluid barrier thereby stemming tip vortex generation at its source.
摘要:
An optical encoder has an optically-encoded plate having parallel tracks each comprising alternate opaque, reflective regions and transparent, non-reflective regions which differ in length between the tracks. LED's direct radiation onto one side of each track. Detectors located on one side of the plate provide an output in response to radiation reflected from the reflective regions of each track; detectors located on the opposite side of the plate provide an output in response to radiation transmitted through the transparent regions. The outputs from the detectors are normally complementary. A processor detects any loss of complementarity and determines the position of the plate close to the boundary between adjacent regions by comparing the detector outputs as one falls and the other rises.
摘要:
A wing structure for an aircraft designed for both STOL and supersonic flight conditions includes a biplanar wing arrangement in which the lower wing section is staggered behind the upper wing section and the lower wing section is designed for both translational and rotational displacements relative to the upper wing section. For short takeoff and landing capabilities, the lower wing section is rotated and translated relative to the upper wing section so that the leading edge of the lower wing section is adjacent to the trailing edge of the upper wing section. For high speed supersonic flight, the lower wing section is adjacent to the trailing edge of the upper wing section. For high speed supersonic flight, the lower wing section is rotated and translated relative to the upper wing section so that the wing sections are substantially parallel.
摘要:
A method for in situ recalibration of a polarographic type electrochemical measuring system having a fourth electrode which includes adjusting the sensitivity of the system so that the measured value of a standard sample is correct and then measuring the transient response of the cell under those known sample conditions. A measurement of the transient response is then made for recalibration under unknown sample conditions with a readjustment of the sensitivity of the system in accordance with the change in the value of the transient response.