摘要:
A method is proposed for converting an image in which each pixel takes one of two binary values, into an image in which each pixel can take continuous values. The method is iterative and works in the space domain. For each pixel, a neighborhood of the image is defined containing that pixel and other pixels. In a first iteration, the method obtains a continuous value for each pixel as a weighted sum of the binary values of the pixels in its neighborhood. In further iterations, the method obtains a continuous value for each pixel as a weighted sum of the values of the pixels in its neighborhood at the previous iteration.
摘要:
A flip chip mounted semiconductor device package having a dimpled leadframe is disclosed. The semiconductor device package includes a leadframe having a plurality of source dimples and a gate dimple, and a semiconductor die having a plurality of source contact areas and a gate contact area corresponding to the leadframe source dimples and gate dimple respectively, the semiconductor die being flipped onto the leadframe such that cured conductive epoxy provides electrical and mechanical contact between the plurality of source contact areas and the plurality of source dimples, and the gate contact area and the gate dimple.
摘要:
The present invention relates to a method of producing polyhydroxyalkanoates (PHAs) using Bacillus sp. with succinate as a carbon source. The PHAs comprise more than 95% of poly(3-hydroxyvalerate-co-4-hydroxyvalerate) (P3HV-co-P4HV).
摘要:
An improved sliding bearing apparatus and method utilize a snap-in polymer bearing insert having one or more identically shaped locking lugs, each of which are configured for locking engagement with a corresponding depression in a bearing housing, to thereby lock the bearing insert in place against relative movement either radially or axially with respect to the bearing housing. In a free-standing state, the insert may have a variety of shapes including cylindrical, non-cylindrical, or be flat and planar. An insert for a closed bearing is configured such that it may be trimmed to form an insert for an open bearing.
摘要:
A semiconductor package and method for making a semiconductor package are disclosed. The semiconductor package has a top surface and a mounting surface and includes a die, a conducting connecting material, a plating material and an insulating material. The die has a processed surface facing towards the mounting surface of the semiconductor package. Exposed metal connections are at the processed surface of the die. The conducting connecting material is disposed on the exposed metal connections. The plating material is in contact with the conducting connecting material. The insulating material is formed around the conducting connecting material, and the plating material extends to the exterior of the insulating material.
摘要:
This invention discloses a power device package for containing, protecting and providing electrical contacts for a power transistor. The power device package includes a top and bottom lead frames for directly no-bump attaching to the power transistor. The power transistor is attached to the bottom lead frame as a flip-chip with a source contact and a gate contact directly no-bumping attaching to the bottom lead frame. The power transistor has a bottom drain contact attaching to the top lead frame. The top lead frame further includes an extension for providing a bottom drain electrode substantially on a same side with the bottom lead frame. In a preferred embodiment, the power device package further includes a joint layer between device metal of source, gate or drain and top or bottom lead frame, through applying ultrasonic energy. In another embodiment, a layer of conductive epoxy or adhesive, a solder paste, a carbon paste, or other types of attachment agents for direct no-bumping attaching the power transistor to one of the top and bottom lead frames.
摘要:
An accelerometer includes a fixing unit and a movable unit. The fixing unit has a plurality of first electrode parts and a plurality of second electrode parts. The movable unit is connected with the fixing unit and includes a body having an opening, a plurality of third electrode parts and a plurality of fourth electrode parts. The third electrode parts are disposed at an outer side of the body with respect to the first electrode parts, respectively. The fourth electrode parts are disposed at the inner side of the body in the opening, and are disposed respectively with respect to the second electrode parts, respectively.
摘要:
Provided herein are the protein and nucleic acid sequences of GmRD22. Further provided herein are methods for conferring abiotic stress tolerance to a plant cell or plant by introducing and expressing an isolated polynucleotide encoding a GmRD22 protein in the cells of the plant. Transgenic plants transformed with an isolated polynucleotide encoding a GmRD22 protein, as well as seeds and progeny derived from these plants, are also provided.
摘要:
Disclosed is an isolated protein from the Chinese medicinal herb, Yuzhu, Polygonatum odoratum (Liliaceae). The protein disclosed is an effective agent showing potent antiviral activities while demonstrating antiproliferative effect on HL-60 leukemia and MCF-7 breast cancer cell lines in vitro. A method of obtaining the target protein and use thereof are also provided.
摘要:
A safety control switch comprises a slide base movably mounted on the housing of a gas-fired ignition device, a push button positioned in a through hole of the slide base, a brake block fixed to the push button for inserting into a space between the slide base and the housing, and a locking piece movably mounted on the slide base and engaged with the through hole of the slide base, the locking piece being moved relative to the slide base between a first position to prevent the push button and the slide base from being operated by blocking the through hole and a second position to allow the push button and the slide base to be operated by removing the blockage of the through hole.