Abstract: Preparing a low dielectric constant thin film layer used in an integrated circuit includes: extracting gas out of a furnace; when the vacuum level within the furnace is less than 10?3 Pa, starting a 13.36 MHz radio frequency power supply and a matcher; sending the exhaust nitrogen gas, used to remove remaining gas out of the furnace by a third gas inlet pipe, into the furnace through a second pressure gas mixing tank and a second nozzle sequentially; uniformly mixing octamethyl cyclotetrasiloxane and cyclohexane, and introducing same into a pressure stainless steel tank, and, respectively by first and second gas inlet tubes, introducing bubbled nitrogen gas and inert gas into the furnace sequentially through a first pressure gas mixing tank, the pressure stainless steel tank and a first nozzle; after deposition, transferring the deposited thin film layer to the furnace's heating zone for annealing, obtaining a low dielectric constant thin film layer.

Abstract: A method for optimizing an optical network includes: obtaining a lightpath demand set including multiple lightpath demands; generating multiple lightpath demand sequences with different orders from the lightpath demand set; obtaining results of the respective lightpath demand sequences in parallel by multiple processing terminals; obtaining all the results, and comparing the results to obtain an optimum result. In this embodiment, by generating multiple lightpath demand sequences with different orders for the lightpath demand set and obtaining many results, the optimum result can be selected out from the results. Furthermore, multiple processing terminals may obtain the result in parallel, thus improving an operation efficiency.

Abstract: A sensor element based on a magneto-thermoelectric effect and realizing method thereof are provided, the sensor element includes a plurality of thermoelectric elements having an angular structure and are located in a magnetic field; the thermoelectric element is made of magnetic material having a thermoelectric effect, and includes a first side, a second side, and an angular part formed by connecting the two sides; the angular part is provided with a heating device; and the temperature in the region where the other end of the first side and the second side are located are less than or equal to the ambient temperature.

Abstract: A method for manufacturing a holographic bi-blazed grating. Two blaze angles of the holographic bi-blazed grating are respectively a blaze angle A and a blaze angle B, and oblique-ion beam etching is performed on two grating areas A and B respectively by using a photoresist grating (12) and a homogeneous grating (14) as masks, thereby implementing different controls on the two blaze angles, and avoiding a secondary photoresist lithography process. Because when manufacturing the homogeneous grating (14), the time of positive ion beam etching can be controlled, so that the groove depth of the homogeneous grating (14) is controlled accurately. In addition, because the homogeneous grating mask and a substrate (10) are made of the same material, etching rates of the two are consistent, so that the accurate control of blaze angles can be implemented.

Abstract: A high-strength biological scaffold and preparation method thereof. The biological scaffold is comprised of a framework of boiled-off silk woven material, the form of the framework is determined by actual needs; the framework surface is coated with a layer of silk protein scaffold material, fibroin protein/gelatin biological scaffold material or fibroin protein/collagen biological scaffold material having a thickness of 100 micrometers to 5 centimeters. The high-strength biological scaffold material has high tear resistance strength and mechanical strength and good biocompatibility, has a porous structure suitable for tissue regeneration, and can be used for preparing anal fistula repair plugs.

Abstract: The present invention concerns a novel recombinant eukaryotic expression plasmid pCMV-HA-pprI encoding the pprI gene isolated from Deinococcus radiodurans R1, the method for preparing pCMV-HA-pprI, and its expression in human 293T cells. The present invention also discloses the optimal method and process of pprI gene transfection by in vivo electroporation, and the radioprotective and therapeutic effects of the recombinant pCMV-HA-pprI on lethally irradiated mice.

Abstract: This invention discloses a method for fabricating a holographic grating with low diffractive wave aberrations on a substrate with aberrations. Forming a interference recording field from two coherent beams, where one is a parallel beam and the other is a beam whose wave-front can be controlled, recording the holographic field on the substrate with aberrations, fabricating the holographic grating with low diffractive wave aberrations, setting a deformable minor into one of the coherent recording beams, and controlling the shape of said deformable minor so as to obtain a compensated interference recording field. Expose the recoding plate under the holographic interference recording field which has been adjusted by the deformable minor to record the grating. After developing, the fabrication of holographic grating with low diffractive wave aberration is finished.