Abstract:
The present invention relates to a method for increasing the heat-resistant of ethylene-vinyl alcohol copolymer (EVOH), the method is characterized by using a mixture of acetic acid, magnesium dihydrogen phosphate, and potassium dihydrogen phosphate at a certain ratio as an acid-treating solution in the acid-treating procedure of a process for preparing EVOH. The EVOH produced by the method of the present invention exhibits an excellent heat-resistance and does not become yellowing attributed to the elevated processing temperature. Also, the EVOH generated by the method of the present invention exhibits a uniform heat-resistance since the additives are dispersed evenly in the EVOH.
Abstract:
A process for continuously preparing ethylene-vinyl acetate (EVAc) copolymer, by subjecting ethylene and vinyl acetate to a solution polymerization by introducing the gaseous phase of the polymerization reaction into an impurity scrubbing column and washing the gas phase with a solvent used in the reaction, then recycling it into the reaction system, thereby impurity generated in the reaction will be removed. A reactive system having a reaction tank for co-polymerizing ethylene with vinyl acetate, an ethylene recovering tower connected with the bottom of the reaction tank, a line connecting with the bottom of the recovering tower for recovering ethylene-vinyl acetate copolymer; and an impurity scrubbing column connecting with the top of the reaction tank for removing impurity generated in the polymerization reaction.
Abstract:
A color management structure for a panel display is provided. It comprises: a display array unit; a plurality of gate drivers; a plurality of source drivers, the plurality of gate drivers and the plurality of source drivers driving the display array unit to display an image; and a timing sequence control unit, the timing sequence control unit outputting a plurality of signals to the plurality of gate drivers and the plurality of source drivers to drive the display array unit, the timing sequence control unit outputting a clock signal and a color management data to the plurality of source drivers.
Abstract:
A reactive pre-clean chamber that contains a wafer heating apparatus, such as a high-temperature electrostatic chuck (HTESC), for directly heating a wafer supported on the apparatus during a pre-cleaning process. The wafer heating apparatus is capable of heating the wafer to the optimum temperatures required for a hydrogen plasma reactive pre-clean (RPC) process. Furthermore, degassing and pre-cleaning can be carried out in the same pre-clean chamber. The invention further includes a method of pre-cleaning a wafer using a pre-clean chamber that contains a wafer heating apparatus.
Abstract:
A direct backlight apparatus for a Liquid Crystal Display (LCD) panel includes a lamp housing and a lamp. The lamp housing accommodates a support structure disposed on the bottom of the lamp housing wherein an open end is defined by one side of the lamp housing. The lamp, supported by the support structure, is installed in the lamp housing and is further attached to a holding structure at one end of the lamp, for holding the lamp. The lamp is removed from the lamp housing through the open end by moving along a direction of the support structure when a force is exerted on the holding structure.
Abstract:
A structure applied to a photolithographic process is provided. The structure comprises at least a film layer, an optical isolation layer, an anti-reflection coating and a photoresist layer sequentially formed over a substrate. In the photolithographic process, the optical isolation layer stops light from penetrating down to the film layer. Since the optical isolation layer is set up underneath the photoresist layer, light emitted from a light source during photo-exposure is prevented from reflecting from the substrate surface after passing through the film layer. Thus, the critical dimensions of the photolithographic process are unaffected by any change in the thickness of the film layer.
Abstract:
A method for performing frame synchronization in a WCDMA system includes first, correlating a received signal with a plurality of predetermined correlators to obtain a plurality of frame synchronization correlation results, then, coherently combining frame synchronization correlation results with a slot synchronization phase when a test phase difference is less than a threshold phase difference, or, coherently combining frame synchronization correlation results with a linear combination of slot synchronization phases when the test phase difference is greater than or equal to the threshold phase difference. The slot synchronization phase is determined by correlating the received signal with a slot synchronization sequence. Lastly, the method determines a frame boundary of the received signal based on the coherent combination results. The method accommodates for a changing signal to noise ratio to improve frame synchronization speed and accuracy.
Abstract:
A method of co-forming a metal article comprising forming a powdered metal component from a first powdered metal composition, providing a polymeric foam, coating the polymeric foam with a second powdered metal composition to form a coated polymeric foam, placing the coated polymeric foam in contact with the powdered metal component to form a composite, and heat-treating the composite to volatilize the polymeric foam and to solidify the powdered metal component. The powdered metal composition of the powdered metal component can be the same or different than the powdered metal composition used to coat the polymeric foam. The resulting co-formed metal article can be in a variety of configurations including, but not limited to, metal foam on the inside or outside surfaces of a metal tube and metal foam on one or more faces of a metal plate.
Abstract:
A method of creating a black box timing model for a digital circuit. The digital circuit is characterized by a block model having at least one input and at least one output. The method determines a delay statement for the output of the block model. The method also determines an input set-up constraint for the input of the block model. The input set-up constraint is based upon the delay statement. The model is then used with a static timing analyzer to accurately model a flow-through circuit.
Abstract:
A network for an oil-smoke exhausting device includes multiple cone-shaped nets separately piled up to one another and adapted to be mounted under an inlet of the oil-smoke exhausting device. Each net has a close end and an open end. The close end has a diameter smaller than that of the open end and the open end is adapted to be mounted around an inlet of the oil-smoke exhausting device. A flange radially outwardly extends from the open end of each of the nets and abuts one another. A washer is mounted between each two adjacent nets to form a chamber between each two adjacent nets. A fastening member securely extends through the cone-shaped nets and the wash ers to hold the washers in place. A frame is mounted around the open ends of each of the cone-shaped nets to combine the flanges securely abutting one another.