Abstract:
The present invention relates to novel fan blade of a ceiling fan, wherein whole or partial perimeter of the blades was designed to project outwardly, for example, the cross section of the outwardly perimeter of the fan blade can be presented in a shape of circular arc, oval, taper with circular arc, obliquity with circular arc, truncated taper, truncated oblique or taper with circular arc in which two sides of the projecting base have a raised bench. A comparison test showed that, the rotational speed and air volume of the novel fan blade according to the present invention is 15-24% and 5-10% greater than those of the traditional fan blades respectively, therefore resulting in saving of materials and energy.
Abstract:
The invention provides transgenic non-human animals and transgenic non-human mammalian cells harboring a transgene encoding an APP polypeptide comprising the Swedish mutation.
Abstract:
One embodiment of the present invention is an electron beam treatment apparatus that includes: (a) an array of lamps that output radiation; (b) a support mechanism adapted to support a substrate at a treatment position above the lamps; and (c) a lamp heat shield, disposed above the array, having a radiation absorption portion adapted to absorb radiation from at least a portion of the array, and a radiation reflection portion adapted to reflect radiation from at least a portion of the array towards the substrate when disposed at the treatment position.
Abstract:
One embodiment of the present invention is an electron beam treatment apparatus that includes: (a) a chamber; (b) a cathode having a surface of relatively large area that is exposed to an inside of the chamber; (c) an anode having holes therein that is disposed inside the chamber and spaced apart from the cathode by a working distance; (d) a wafer holder disposed inside the chamber facing the anode; (e) a source of negative voltage whole output is applied to the cathode to provide a cathode voltage; (f) a source of voltage whose output is applied to the anode; (g) a gas inlet adapted to admit gas into the chamber at an introduction rate; and (h) a pump adapted to exhaust gas from the chamber at an exhaust rate, the introduction rate and the exhaust rate providing a gas pressure in the chamber; wherein values of cathode voltage, gas pressure, and the working distance are such that there is no arcing between the cathode and anode and the working distance is greater than an electron mean free path.
Abstract:
A method of filling a plurality of trenches etched in a substrate. In one embodiment the method includes depositing a layer of spin-on glass material over the substrate and into the plurality of trenches; exposing the layer of spin-on glass material to a solvent; curing the layer of spin-on glass material; and depositing a layer of silica glass over the cured spin-on glass layer using a chemical vapor deposition technique.
Abstract:
One embodiment of the present invention is an electron beam treatment apparatus that includes: (a) an array of lamps that output radiation; (b) a support mechanism adapted to support a substrate at a treatment position above the lamps; and (c) a lamp heat shield, disposed above the array, having a radiation absorption portion adapted to absorb radiation from at least a portion of the array, and a radiation reflection portion adapted to reflect radiation from at least a portion of the array towards the substrate when disposed at the treatment position.
Abstract:
A method provides differentiated quality of service (QoS) by providing adaptive updates to media access control (MAC) layer parameters on a distributed basis. The method includes calculating a failure probability for a transmission over the network, determining a target value for determining a contention window according to a mapped function of the failure probability, and altering the contention window according to a scaling function of the target value. The mapped function and the scaling can provide QoS differentiation. A wireless device ensures fairness in a wireless time slotted network and includes a network interface card (NIC), a network driver interface, a network monitor, a statistics engine, and an adaptive parameter engine for determining a target value for determining a contention window according to a mapped function of the one or more probabilities to enable an alteration of the contention window and provide new parameters for the MAC layer.
Abstract:
A compact spectroscope is sufficiently lightweight for use in combination with a microscope for analyzing samples using Raman analytical techniques. The Raman spectroscope includes a housing detachably mountable to the microscope. The housing contains at least one source of radiation. One or more filters are positioned at desired angles across the beam path provided by the source of radiation. The spectroscope includes a variety of components operatively connected to source of radiation capable of providing one or more Raman beams, as well as a variety of components for processing beam constituents for microscope analysis. A fiber optic probe is provided for examining large samples or samples at remote sites. A computer or other electronic reader may also be attached to the Raman spectroscope for viewing analytical data.
Abstract:
The invention provides transgenic non-human animals and transgenic non-human mammalian cells harboring a transgene encoding an APP polypeptide comprising the Swedish mutation.
Abstract:
To generate a color palette having m colors (such as 28=256 colors) from a color image described in a color space, pixel image data corresponding to the color image is first obtained. A frequency of occurrence for each color in the pixel image data is then determined. Each color in the pixel image data is assigned to one of a predetermined number of cells into which the color space has been partitioned, the predetermined number being not greater than m. The most commonly occurring color is selected in each cell in which a color exists, so as to obtain n palette colors. A vote value is calculated for each unselected color, the vote value being based at least in part on the frequency of occurrence of the color in the pixel image and a weighting factor based on a rank of the color in its corresponding cell, the unselected colors being the colors not selected in the first selecting step. Thereafter, m-n colors are selected as the unselected colors with the highest vote values. Also, input colors in a color image described in a color space are mapped to a reduced palette of m colors derived by partitioning the color space into a predetermined number of cells, there being at least one palette color in each cell that includes an input color. The mapping is performed by determining in which cell each input color lies, and mapping each input color to the closest palette color from among all palette colors in the cell identified for that input color.