摘要:
An agitator includes a trough having a first end, a second end, a top, a bottom, an inlet on the top and close to the second end, and an outlet on the bottom and close to the first end, an axle rotatably mounted between the first and second ends of the trough and enclosed with an inner spiral vane, the inner spiral vane being fixedly mounted on the axle and gradually decreased in outer diameter, the inner spiral vane being provided with an edge close to the first end of the trough, and an outer spiral vane enclosing the inner spiral vane and fixedly mounted on the inner spiral vane, the outer spiral vane being opposite to the inner spiral vane in spiral direction, whereby the agitator can be stir a mixture thoroughly and rapidly.
摘要:
A selectively inducible, single-stranded DNA (ssDNA) expression library, a method for constructing a ssDNA expression library, a method for screening ssDNA using the expression library, and a method for identifying ssDNA molecules that alter expression of bacterial and fungal gene(s) related to cell growth and toxin production and secretion. The screening library is used to, among other things, identify ODNs effective in stopping cell growth, killing bacteria or fungi, or preventing bacteria and/or fungi from synthesizing and secreting their toxins, and/or to discover ODNs effective in eukaryotic (e.g., mammalian) cells for targeted alteration of gene function. The library is also useful for identifying ssDNAs or ODNs that are used as therapeutic agents for, for instance, providing a method for treatment of bacterial infections such as sepsis.
摘要:
The present invention relates to LED lamp string, comprising at least three conducting wires with insulating layers. One of the conducting wires is a positive conducting wire, and the others are negative conducting wires. A mounting part is provided on each negative conducting wire at every certain interval. A light emitting wafer is fixed to the mounting part. The light emitting wafer comprises a first electrode and a second electrode which are separately provided. The first electrode of the light emitting wafer connected with each negative conducting wire is electrically connected with the conductor of the same negative conducting wire. The second electrode is electrically connected with the conductor of the positive conducting wire via a wire. A transparent outer sealing gum encapsulating the mounting part, the light emitting wafer and the wire is provided on the LED lamp string.
摘要:
A composition for treatment of HSV-related pathologies including an expression vector for altering expression of a target sequence in an HSV-infected cell by production of single-stranded cDNA (ssDNA) in the cell in vivo suspended for topical application to an affected site in a suitable delivery vehicle. The expression vector is comprised of a cassette comprising a sequence of interest, an inverted tandem repeat, and a primer binding site 3′ to the inverted tandem repeat, and a reverse transcriptase/RNAse H coding gene, and is transfected into the infected cells for inhibition of HSV replication. The resulting ssDNA binds to the target sequence to alter expression of the target sequence for such purposes as gene activation or inactivation using duplex or triplex binding of nucleic acids, site-directed mutagenesis, interruption of cellular function by binding to specific cellular proteins, or interfering with RNA splicing functions.
摘要:
The invention provides an improved cell free amplification method capable of producing large quantities of therapeutic-quality nucleic acids and methods of using the synthesized nucleic acid in research, therapeutic and other applications—The methods combine several different state-of-the-art procedures and coordinate their applications to affordably synthesize nucleic acids for therapeutic purposes. It combines in vitro rolling circle amplification, high fidelity polymerases, high affinity primers, and streamlined template specifically designed for particular applications. For expression purposes, the templates contain an expression cassette including a eukaryotic promoter, the coding sequence for the gene of interest, and a eukaryotic termination sequence. Following amplification, concatamers are subsequently processed according to their intended use and may include: restriction enzyme digestion for the production of short expression cassettes (SECs); ligation steps to circularize the SEC (CNAs); and/or supercoiling steps to produce sCNAs. The final product contains nearly non-detectable levels of bacterial endotoxin.
摘要:
An exhaust valve assembly includes a valve body, a valve supported by a shaft within the valve body, and an actuator that drives the shaft to move the valve relative to the valve body. A thermal isolator is associated with the shaft to reduce heat transfer from the valve to the actuator.
摘要:
A storage system has a cache and a main storage for longer term storage. The main storage has first files stored therein. First copies of a subset of the first files are cached responsive to user requests for ones of the first files. In a predetermined, set-aside portion of the main storage, substantially all the cached files are copied, so that the main storage includes the first files and second copies of substantially all of the subset of the first files. The second copies are in a more compact data structure in the set-aside portion than is the subset of the first files in a non-set-aside portion of the main storage. Also, ones of the second copies of the subset of the first files are loaded to the cache from the set-aside portion of the main storage in response to a loss of ones of the files in the cache.
摘要:
An apparatus, system, and method are provided for modeling and analyzing a plurality of computing workloads. The apparatus, system, and method include a data collection module for gathering performance data associated with operation of the computer system. A modeling module executes a plurality of models in parallel, in series, or according to a hierarchical relationship. A data analysis module presents analysis data compiled from the modeling module to a user, typically in the form of a graph. And finally, a framework manages the data collection module, the modeling module, and the data analysis module according to a predefined data and model flow.
摘要:
A method for forming multilevel interconnects in a semiconductor IC device is provided. The method involves a simplified planarization process for planarization of inter-metal dielectrics that allows for easy and cost-effective fabrication of the device. By this method, an insulating layer is formed over a substrate, then a first conductive layer is formed over the insulating layer and which is selectively removed to form conductive interconnects. Subsequently, a dielectric layer is formed over the conductive interconnects. A photoresist layer is then formed and patterned over the dielectric layer by a spin-coating process. An etching process is then conducted on the photoresist layer and the dielectric layer with a 1:1 etching ratio until the photoresist layer is completely removed. At the same moment when the photoresist layer is completely removed, the via holes are formed. The following steps are the same for fabricating the next-level interconnects. In the foregoing method, the spin-coating process allows the photoresist layer to be formed with a flat top surface. In the etching process, the 1:1 etching ratio on the photoresist layer and the dielectric layer allows the underlying dielectric layer to have a flat top surface when the photoresist layer is completely removed. The planarization process is significantly simplified. This allows the manufacturing costs to be significantly reduced.