Abstract: A method for preparing dehydrocavidine, dehydroapocavidine and their respective composition is provided. The composition is first prepared by isolating and purifying the quaternary ammonium alkaloid components from the medicinal plant “Yan Huang Lian” (Corydalis saxicola Bunting) through the processes of solvent extraction, water-phase organic extraction, crystallization and recrystallization, and then drying to obtain said composition containing dehydrocavidine and dehydroapocavine. When necessary, the composition or their crude extracts can be separated by chromatography to obtain dehydrocavidine or dehydroapocavidine. Dehydrocavidine, dehydroapocavidine or their respective composition can be used in manufacturing medicines for treating viral hepatitis, hepatic injury, influenza, AIDS, tumors or arrhythmia.

Abstract: A method and apparatus for translating a hierarchical IC layout file into a format that can be used by a mask writer that accepts files having a limited hierarchy. Cover cells of the original IC layout file or a modified file are designated, and the hierarchical file is redefined to include only those designated cover cells. Non-designated cover cells and other geometric data are flattened into the designated cover cells. The hierarchy of the modified file is then redefined to be less than or equal to the hierarchy limit of the mask writing tool.

Abstract: A method for detecting QoS anomaly is provided. The method includes obtaining a QoS index of data stream transmission of a parent peer, and detecting QoS anomaly of the parent peer according to the QoS index and a corresponding QoS index threshold. A method for detecting factors causing QoS anomaly is also provided. The method includes detecting whether QoS of an associated peer is abnormal or not, counting a QoS anomaly proportion of the associated peer statistically, and determining factors causing QoS anomaly according to the anomaly proportion of the associated peer. Correspondingly, a system for detecting QoS anomaly and a system for detecting factors causing QoS anomaly are also provided. Thus, the QoS anomaly information is detected, and the factors causing the QoS anomaly are also detected, so as to ensure that the QoS anomaly information is precisely detected in a P2P system, and the QoS in the system is indeed guaranteed.

Abstract: A method for preparing dehydrocavidine, dehydroapocavidine and their respective composition is provided. The composition is first prepared by isolating and purifying the quaternary ammonium alkaloid components from the medicinal plant “Yan Huang Lian” (Corydalis saxicola Bunting) through the processes of solvent extraction, water-phase organic extraction, crystallization and recrystallization, and then drying to obtain said composition containing dehydrocavidine and dehydroapocavine. When necessary, the composition or their crude extracts can be separated by chromatography to obtain dehydrocavidine or dehydroapocavidine. Dehydrocavidine, dehydroapocavidine or their respective composition can be used in manufacturing medicines for treating viral hepatitis, hepatic injury, influenza, AIDS, tumors or arrhythmia.

Abstract: A method for preparing dehydrocavidine, dehydroapocavidine and their respective composition is provided. The composition is first prepared by isolating and purifying the quaternary ammonium alkaloid components from the medicinal plant “Yan Huang Lian” (Corydalis saxicola Bunting) through the processes of solvent extraction, water-phase organic extraction, crystallization and recrystallization, and then drying to obtain said composition containing dehydrocavidine and dehydroapocavine. When necessary, the composition or their crude extracts can be separated by chromatography to obtain dehydrocavidine or dehydroapocavidine. Dehydrocavidine, dehydroapocavidine or their respective composition can be used in manufacturing medicines for treating viral hepatitis, hepatic injury, influenza, AIDS, tumors or arrhythmia.

Abstract: A method and apparatus for translating a hierarchical IC layout file into a format that can be used by a mask writer that accepts files having a limited hierarchy. Cover cells of the original IC layout file or a modified file are designated, and the hierarchical file is redefined to include only those designated cover cells. Non-designated cover cells and other geometric data are flattened into the designated cover cells. The hierarchy of the modified file is then redefined to be less than or equal to the hierarchy limit of the mask writing tool.

Abstract: A system for calculating electrical properties of features to be created in an integrated circuit. All or a portion of a desired layout design is corrected for photolithographic or other process distortions using one or more resolution enhancement techniques. A simulated layout image of a corrected layout is used as an input to a field solver program that calculates the electrical properties of the features as they will be printed on a wafer.

Abstract: A method for promoting differentiation of clonogenic neural stem cells (NSCs), comprising administering to a patient in the need of such promoting a coumarin compound represented by formula I or by formula II. The representative coumarin compounds include 7-hydroxycoumarin, daphnoretin, scopoletin, edgeworin, aesculetin and esculetin-6-?-D-glucopyranoside. The coumarin compounds showed significant activity of directing the differentiation of NSCs in pharmacological test and thereof could be used to prepare drugs to direct NSCs differentiated to oligodendrocyte progenitor cells (OPCs) for the treatment of demyelinating diseases or spinal cord injury. The drug could be a pure coumarin compound or a pharmaceutical composition comprising a therapeutical dose of a coumarin compound as active ingredients and a pharmaceutically-acceptable carrier. The content of the active ingredients in the pharmaceutical composition is between 0.1% and 99.5% by weight.

Abstract: Layout data is divided into segments of data, and each segment of data is distributed to a computing node in a parallel processing fracturing tool. During the fracturing process, the fracturing tool generates one or more global parameter values for each segment of data. After the fracturing process is completed, the fracturing tool will merge the segments back together using the global parameter values to ensure that the merger of the data segments does not exceed a constraint of the reticle or mask writer in which the fractured data will be employed.

Abstract: A method and system for protecting silicon IPs from unauthorized use, transfer and sale, and for hiding confidential technology information contained in silicon IPs is described. The method and system create a content-encrypted silicon IP layout database from its original layout database. Both the layout database may be GDSII files, OASIS files, or other format layout database file, in which multiple records sequentially build the layout database. In accordance with one preferred embodiment, first, the original layout database is parsed and saved as sequential records in the memory. Next, the structure records, which construct structures in the original layout database, are selected from the saved records. Once the structure records have been selected, the data of the structure records may be compressed with using a public compressing method, and may be encrypted with using a public cryptography algorithm.

Abstract: A method for preparing dehydrocavidine, dehydroapocavidine and their respective composition is provided. The composition is first prepared by isolating and purifying the quaternary ammonium alkaloid components from the medicinal plant “Yan Huang Lian” (Corydalis saxicola Bunting) through the processes of solvent extraction, water-phase organic extraction, crystallization and recrystallization, and then drying to obtain said composition containing dehydrocavidine and dehydroapocavine. When necessary, the composition or their crude extracts can be separated by chromatography to obtain dehydrocavidine or dehydroapocavidine. Dehydrocavidine, dehydroapocavidine or their respective composition can be used in manufacturing medicines for treating viral hepatitis, hepatic injury, influenza, AIDS, tumors or arrhythmia.

Abstract: This invention pertains to polynucleotides, such as small interfering RNA (siRNA), useful for reducing the expression of respiratory syncytial virus (RSV) genes within a subject; and methods for treating a patient suffering from, or at risk of developing, an RSV infection by administering such polynucleotides to the subject.

Abstract: A system for calculating electrical properties of features to be created in an integrated circuit. All or a portion of a desired layout design is corrected for photolithographic or other process distortions using one or more resolution enhancement techniques. A simulated layout image of a corrected layout is used as an input to a field solver program that calculates the electrical properties of the features as they will be printed on a wafer.

Abstract: A method and apparatus for translating a hierarchical IC layout file into a format that can be used by a mask writer that accepts files having a limited hierarchy. Cover cells of the original IC layout file or a modified file are designated, and the hierarchical file is redefined to include only those designated cover cells. Non-designated cover cells and other geometric data are flattened into the designated cover cells. The hierarchy of the modified file is then redefined to be less than or equal to the hierarchy limit of the mask writing tool.

Abstract: A method and apparatus for translating a hierarchical IC layout file into a format that can be used by a mask writer that accepts files having a limited hierarchy. Cover cells of the original IC layout file or a modified file are designated, and the hierarchical file is redefined to include only those designated cover cells. Non-designated cover cells and other geometric data are flattened into the designated cover cells. The hierarchy of the modified file is then redefined to be less than or equal to the hierarchy limit of the mask writing tool.

Abstract: A method and apparatus for translating a hierarchical IC layout file into a format that can be used by a mask writer that accepts files having a limited hierarchy. Cover cells of the original IC layout file or a modified file are designated, and the hierarchical file is redefined to include only those designated cover cells. Non-designated cover cells and other geometric data are flattened into the designated cover cells. The hierarchy of the modified file is then redefined to be less than or equal to the hierarchy limit of the mask writing tool.

Abstract: This invention relates to stepless speed change bench drill, comprising a pedestal, a vertical post mounted on the pedestal, a worktable and a cabinet mounted on the vertical post, a driving shaft and a main shaft mounted on the upper portion of the cabinet, a motor for transmitting power to the driving shaft, a motor movable wheel and a motor stationary wheel mounted on the driving shaft, and a main shaft movable wheel and a main shaft stationary wheel mounted on the main shaft, a speed regulation shaft provided with a threaded section and mounted between the driving shaft and the main shaft, the threaded section is engaged with a threaded hole formed on a bearing block, the bearing block is simultaneously mounted on the main shaft, the speed regulation shaft is rotated by a speed regulation hand wheel.

Abstract: A coping saw includes a housing and a flexible conveyor belt supported by at least three balancing wheels being supported rotatably on said housing. A saw blade is connected with one end of an upper saw blade holding mechanism and one end of a lower saw blade holding mechanism at its two ends respectively. A driving mechanism is driven by a motor and connected to the flexible conveyor belt through a sliding block.

Abstract: This invention relates to stepless speed change bench drill, comprising a pedestal, a vertical post mounted on the pedestal, a worktable and a cabinet mounted on the vertical post, a driving shaft and a main shaft mounted on the upper portion of the cabinet, a motor for transmitting power to the driving shaft, a motor movable wheel and a motor stationary wheel mounted on the driving shaft, and a main shaft movable wheel and a main shaft stationary wheel mounted on the main shaft, a speed regulation shaft provided with a threaded section and mounted between the driving shaft and the main shaft, the threaded section is engaged with a threaded hole formed on a bearing block, the bearing block is simultaneously mounted on the main shaft, the speed regulation shaft is rotated by a speed regulation hand wheel.