Abstract:
The present invention provides a process for preparing an aqueous dispersion containing a high concentration of nano/submicron, hydrophobic, functional compounds. The process is carried out by using a complex stabilizer having an HLB value of about 10 to about 17, comprising lecithin and at least one non-phospholipid selected from polysorbate, sucrose ester, and polyglycerol fatty acid ester; selecting a specific weight ratio of the hydrophobic functional compounds and the stabilizer; and using homogenization technique, media milling technique, and/or centrifugal technique. The aqueous dispersion containing a high concentration of nano/submicron, hydrophobic, functional compound produced by the process of the invention has stable dispersibility and improved bioavailability, and can be applied to the fields of foods and pharmaceuticals.
Abstract:
A disposable syringe after one time usage includes an outer tube having an inner teeth set formed on the inner wall of the outer tube and an inner tube having an outer teeth set formed on the outer wall of the inner tube and a safety guide. The inner teeth set of the outer tube meshes with the outer teeth set of the inner tube. The single direction design of the teeth sets allows the outer tube to be pulled away from the inner tube, but not to be pushed back. The pulling force of the outer tube will pull the safety guide to form a damaged groove and the outer tube is adapted to enclose a needle so that the needle is not exposed outwardly, which prevents the needle from poking people accidentally. The syringe is unable to be reused.
Abstract:
A video reproducing/recording and playing system and a method thereof for setting and playing video sections are provided. The system includes a host computer with a data buffer and a database, a video module, and a monitor. While continuously receiving video signals, the video module sets a first section index when a scene difference between a first frame and a second frame represented by a portion of the video signals is greater than a predetermined scene difference wherein the first section index points to a start time of the second frame. Then, the video module stores the first section index and stores the video signals corresponding to the second frame into the data buffer. After retrieving the first section index, the monitor presents the video signals from the second frame points by the first section index.
Abstract:
According to one aspect of the present invention, a method for calibrating a fiber optic gyroscope is provided. A method is provided for calibrating a fiber optic gyroscope. First and second portions of light from a first light source are propagated through a fiber optic line in respective first and second directions. A first voltage that causes a predetermined phase shift between the first and second portions of the light from the first light source is calculated. First and second portions of light from a second light source are propagated through the fiber optic line in the respective first and second directions. A second voltage that causes the predetermined phase shift between the first and second portions of the light from the second light is calculated. A difference between the first voltage and the second voltage is then calculated.
Abstract:
A clock system for a fiber optic gyroscope is provided that includes a highly-tunable clock for the bias modulation and a separate asynchronous high-speed clock for the photodetector sampling. By separating the two clocks rather than using two derivatives of the same clock, the clock system and method can provide both the tunability objective of the bias modulation clock and the high-speed objective of the sampling clock, while using readily available, lower performance, radiation-hardened electronics parts.
Abstract:
According to the preferred exemplary embodiments of the present invention, there is provided a phase jump amplitude and timing controller for suppressing the voltage-dependent errors responsible for the dead band. The phase jump amplitude and timing controller inserts a phase/voltage jump into the feedback signal of the loop closure electronics of the fiber optic gyroscope. The phase/voltage jump is provided at a frequency regular enough to ensure that the fiber optic gyroscope will not have enough time to settle into the dead band before the phase/voltage jump is supplied to the loop closure electronics. By providing a recurring phase/voltage jump with amplitude sufficient to move the signal out of the dead band, the loop closure electronics averages the voltage-dependent errors over the full feedback voltage range. This error averaging process effectively eliminates the voltage-dependent errors that cause the dead band phenomenon and allows the loop closure electronics to sense the actual rate of rotation for the fiber optic gyroscope.
Abstract:
Systems and methods for performing vibration error suppression in a fiber optic gyro sensor. An example system includes a light source, a sensing loop assembly, a photo detector, and a processing component. The light source generates a light signal that is then modulated by the sensing loop assembly and applied to a fiber optic coil in the assembly. The photo detector receives a modulated light signal that is an output of the sensing loop assembly (coil) and generates an analog signal. The processing component converts the generated analog signal into a modulated digital signal, determines an average of the modulated digital signal, determines an intensity modulation amplitude based on the determined average of the modulated digital signal, and re-scales the modulated digital phase signal based on the determined intensity modulation amplitude.
Abstract:
A semiconductor process wafer having substantially co-planar active areas and a laser marked area in an adjacent inactive area and method for forming the same to eliminate a step height and improve a subsequent patterning process over the active areas wherein an inactive area trench is formed overlying the laser marked area in parallel with formation of STI trenches in the active area whereby the active areas and the inactive area are formed substantially co-planar without a step height.
Abstract:
A fiber optic ring interferometer, such as an interferometric fiber optic gyro (IFOG), with a sensing loop doubler. The IFOG device includes a light source, a circulator in optical communication with the light source and a photo diode, an integrated optical chip (IOC) capable of splitting light emitted from the circulator into two paths each of which is capable of being modulated, the IOC further being capable of combining light from each of the two paths when light travels in a direction towards the circulator, a fiber coil, and a polarization maintaining (PM) combiner/splitter disposed in between the IOC and the fiber coil. The PM combiner/splitter operates to send light through the fiber coil a first time in a first polarization state and to subsequently send the same light a second time through the fiber coil in a second orthogonal polarization state, whereby light travels twice the distance compared to a single loop IFOG device and, as such, effectively doubles the LD product.
Abstract:
Calibrating a seamless tiled display image having multiple overlapping discrete images produced by multiple displays includes generating a display-to-screen spatial transformation function to reduce one or more undesirable geometric projector characteristics for each of the projectors used in the tiled display. Then the method includes generating a screen-to-camera spatial transformation function to reduce one or more undesirable geometric camera characteristics for each of the cameras used in capturing the tiled display images used in the calibration. Then the method requires generating a spatial luminance transformation function for effective color calibration for each of the display images in the tiled display. Then the method requires inputting a high-resolution image into a tiled display processor to form the tiled images of the tiled display, segmenting the inputted high-resolution image to form tiled images based on an array of images used in the tiled display, and pre-warping each of the segmented tiled images using the display-to-screen spatial transformation function to reduce the one or more non desirable geometric projector characteristics. Then the method requires applying an inverse of the spatial-luminance transformation function to each of the pre-warped images to effectively blend colors in the tiled display images.