Abstract: The present invention provides a 3-dimensional P-N junction solar cell composed of a base board coated with a back plate on the upper face of the same; a P type semiconductor thin film formed on the top side of the back plate which has a 3-dimensional porous structure and is composed of P type semiconductor crystal grains; a N type buffer layer formed on the surface of the crystal grains of the said P type semiconductor thin film with playing a role of coating the thin film; and a transparent electrode formed on the surface of the crystal grains of the P type semiconductor thin film on which the N type buffer layer is formed. The solar cell of the present invention is a P-N junction solar cell including a 3-dimensional photo catalytic thin film, which can provide an improved photoelectric conversion efficiency, compared with the conventional P-N junction solar cell, owing to the formation of the N-type buffer layer on the surface of the crystal grains of the 3-dimensional P type semiconductor thin film.

Abstract: The present invention relates to a copper-based catalyst for preparing 1,2-propanediol, wherein copper as an active metal is supported on a complex metal oxide structure having mesopores and macropores at the same time, a method for preparing the copper-based catalyst, and method for selectively preparing 1,2-propanediol from dehydration and hydrogenation of glycerol using the copper-based catalyst.

Abstract: A method for producing controlled-release fertilizer coated with polyurethane is provided, wherein granular fertilizer is preheated under fluidized state in a fluidized bed; the surface of the granular fertilizer is pretreated after liquid paraffin being atomized; polyol and isocyanate are mixed in a nozzle, then atomized and sprayed onto the surface of the granular fertilizer; after the reaction materials are added, liquid paraffin is added for surface release treatment.

Abstract: One embodiment of present invention provides a method for manufacturing a semiconductor structure, which comprises: forming a gate stack on a semiconductor substrate and removing parts of the substrates situated on two sides of the gate stack; forming sidewall spacers on sidewalls of the gate stack and on sidewalls of the part of the substrate under the gate stack; forming doped regions in parts of the substrate on two sides of the gate stack, and forming a first dielectric layer to cover the entire semiconductor structure; selectively removing parts of the gate stack and parts of the first dielectric layer to form a channel region opening and source/drain region openings; forming a high K dielectric layer on sidewalls of the channel region opening; and implementing epitaxy process to form a continuous fin structure that spans across the channel region opening and the source/drain region openings.

Abstract: Thermotechnical units of solid oxide fuel cell (SOFC) are integrated as a whole one. The units may include a burner, a reformer and a heat exchanger. The integrated units can be easily assembled into an SOFC system with cell stacks. Thus, the present invention has a simple structure, operates with ease, saves operational cost, runs with fewer utilities, decreases heat dissipation and enhances system performance.

Abstract: A dianhydride and a polyimide formed by the same are provided. The dianhydride has a chemical structure represented below: wherein Ar is a fluorene-containing group. The dianhydride can be polymerized with a diamine to form a polyimide with a repeating unit of a chemical formula: wherein Ar is the fluorene-containing group, and n is a positive integer from 1 to 5. The polyimide simultaneously has excellent thermal stability and hot workability, and can therefore be applied in several industries.

Abstract: In a method for fabricating a field effect power electronic device, an epi layer is formed on a substrate defined by a device isolation area and a device operation area. A mask pattern is formed which covers the epi layer in the device operation area and has openings positioned at a predetermined distance along a first direction. An inside of the epi layer having the mask pattern formed thereon is formed as an active area, and a non-active area is formed by implanting ions into an inside of the epi layer having the mask pattern not formed thereon. The mask pattern is removed. Source and drain electrodes are formed, in a second direction, on the epi layer in the device operation area with the non-active area interposed therebetween. A gate electrode is formed on the epi layer in the device operation area between the source electrode and the drain electrode.

Abstract: A method for arranging a plurality of message blocks in a lattice form and generating a message matrix includes deciding lengths of rows of the message matrix such that a length difference is equal to or less than a first critical point, deciding lengths of the message blocks such that a length difference is equal to or less than a second critical point, and arranging the message blocks in each row of the message matrix such that a length difference of columns of the message matrix is equal to or less than a third critical point.

Abstract: This invention relates to a visible-light-responsive photocatalyst for photocatalyticly oxidation desulphurization and method for preparation and application thereof. The catalyst is comprised of one type of metal MI, one type of metal oxide MIIOx and BiVO4 as the supporter, wherein the mass ratio of the sum of the two types of metal (MI+MII) to BiVO4 is from 1:5000 to 1:50; the mass ratio of the type of metal MI to the type of metal MII is from 1:50 to 50:1. The catalyst is used in the photocatalytic oxidation desulphurization. Under mild condition (room temperature, 1 atm), using O2 as the oxidant and xenon lamp (wavelength 420 nm<?<700 nm) as the light source, avoid the oil's absorption of light (mainly in the violet area which is below 420 nm), the desulphurization ratio of thiophene can be above 90%, meanwhile the oil won't be excited. The sulfur in thiophene can be oxidized to SO3 and absorbed by the absorbent after escaped from the reaction system.

Abstract: An apparatus for providing near field communication (NFC) for a mobile device, includes a USB (universal serial bus) signal processing unit configured to convert a signal of the mobile device, which is received through a USB interface into a value to be processed in a central processing unit, and convert a value received from the central processing unit into a signal to be transmitted to the USB interface. Further, the apparatus includes an analog signal processing unit configured to convert an analog signal received from an outside device into a digital signal, and convert a digital signal of the central processing unit into an analog signal to transmit the converted analog signal to the antenna.

Abstract: A vehicle position calibration method and apparatus thereof are disclosed. The vehicle position calibration method is applicable to a vehicle having a mobile calibration positioning device and at least a vehicle having a positioning device to be calibrated. The method starts with the mobile calibration positioning device transmitting a message of positioning precision level to the positioning device to be calibrated. Then, the positioning device to be calibrated sends a calibration request to the mobile calibration positioning device according to the message of positioning precision level; then the mobile calibration positioning device detects a relative position between the mobile calibration positioning device and the positioning device to be calibrated according to the calibration request.

Abstract: The present disclosure provides a method of manufacturing a semiconductor device having silicon nitride with a tensile stress, the method comprising: c1) introducing and pre-stabilizing NH3 gas and N2 gas; c2) introducing silane; c3) igniting the gases by a radio-frequency source; c4) depositing SiN; and c5) processing the SiN by using a nitrogen ion implantation. According to the present disclosure, the nitrogen content in the SiN film can be enhanced by the nitrogen ion implantation and impinging, thereby increasing the density of the film. In this way, the acid resistance of the SiN with tensile stress is enhanced, so that the SiN with tensile stress may be integrated in a dual-strained liner of a gate-last process, so as to effectively improve the properties and reliability of the device.

Abstract: An apparatus and a method for identifying a rogue device having a media access control (MAC) address counterfeited/forged when a wireless intrusion prevention system controls an access to an access point (AP) and a wireless terminal which are not applied are disclosed. The apparatus includes: a sensor unit configured to collect MAC addresses, RSSI values, and RF feature values based on RF signals of wireless terminals; an RF feature database configured to store the collected MAC addresses, RSSI values, and RF feature values; and a terminal identification unit configured to identify whether a MAC of any one of the wireless terminals is forged by comparing information of the RF feature database with the RSSI value and the RF feature value of any one of the wireless terminals according to a MAC verification request of any one of the wireless terminals from the sensor unit.

Abstract: A cyber-physical system and a method of monitoring a virtual machine thereof are provided. The cyber-physical system includes a plurality of target controllers that includes middleware operating based on different operating systems and that control different targets, and a system monitor that includes integrated middleware of analyzing and synthesizing information collected from the middleware. First virtual machines corresponding to virtualization of the target controllers and a second virtual machine corresponding to virtualization of the system monitor are independently formed through a virtual machine monitor.

Abstract: Disclosed is a method of avoiding channel interference by a sensor node including a multi transmission and reception unit in a wireless sensor network. The method includes setting channel A in channel group A for a first wireless transmission and reception unit, and setting channel B in channel group B for a second wireless transmission and reception unit, checking interference for the channel A, detecting interference for the channel B if interference is detected in the channel A, and performing communication through a channel where interference has not been detected among the channel A and the channel B.

Abstract: An object of the present invention is to provide a method for producing a gel containing a nano-carbon material, which allows the gelling medium used to be selected from a wide range of substances, is applicable to other nano-carbon materials in addition to carbon nanotubes, and can be implemented in an extremely simple manner. A method for producing a gel containing a nano-carbon material of the present invention as a means for achieving the object is characterized in that a nano-carbon material is stir-mixed with a gelling medium that satisfies the following conditions (but is not an ionic liquid), the gelling medium being in a liquid or molten state: (1) the gelling medium is in a liquid state at ambient temperature or melts when heated; and (2) the gelling medium contains, in the molecule, two or more rings of at least one kind selected from optionally substituted aromatic hydrocarbon monocyclic ring and optionally substituted aromatic heteromonocyclic ring.

Abstract: A selection method of satellites for RTK positioning calculation includes initializing a mask threshold of the elevation angle mask and/or the signal strength mask, setting the mask threshold as a first mask threshold other than a mask threshold which carried out an initial setting, performing a first RTK positioning calculation based on a signal from the satellite, performing a first quality check about a positioning solution in the first RTK positioning calculation, and when the first quality check is under the threshold of the ratio test, performing a second RTK positioning calculation based on the signal from the satellite newly chosen via the first mask threshold and performing a second quality check about a second positioning solution in the second RTK positioning calculation.

Abstract: The present invention obtains subband signals by performing a multiresolution decomposition by a wavelet frame with orientation selectivity or a filterbank with orientation selectivity that is a set of an approximate filter with no orientation and a plurality of detail filters with respective orientations on image data, and, when an image is reconstructed by summing the obtained subband signals, generates reconstructed image data that creates a floating illusion by attenuating or amplifying a subband signal corresponding to at least one of detail filters with a predetermined orientation relative to a floating direction, in which an image is desired to be floated due to an illusion, among the detail filters.

Abstract: Disclosed is an energy conversion apparatus. An energy conversion apparatus may comprise a control part controlling a length of a first time duration in which input current is inputted and accumulated, a length of a second time duration in which the accumulated current is provided to a load, and a length of a third time duration in which inverse current flows; and a DC-to-DC converter including an inductor, a output capacitor, and at least one switching element, wherein the input current is accumulated during the first time duration by switching the at least one switching element according to a control of the control part so as to perform input impedance matching, and the DC-to-DC convert provides a current corresponding to a difference between the accumulated current provided during the second time duration and the inverse current flowing from the output capacitor during the third time duration to the load.

Abstract: Disclosed is a gelatin-based nanoparticle complex for tumor-targeted delivery of siRNA for specific gene silencing in tumor cells. The gelatin-based nanoparticle complex includes: poly-siRNA chains whose ends are modified with thiol groups; and thiolated gelatin bound to the poly-siRNA chains through disulfide crosslinking and charge interactions. The gelatin-based nanoparticle complex is not degraded in the bloodstream and can be efficiently absorbed into tumor cells without cytotoxicity. The delivered siRNA can effectively silence target gene expression. Also disclosed is a method for preparing the gelatin-based nanoparticle complex.