摘要:
The present invention relates to a method for manufacturing iron oxide nanotubes and iron oxide nanotubes manufactured thereby and, more particularly, to a method for easily and conveniently manufacturing iron oxide nanotubes, which have excellent capability to adsorb and desorb phosphate due to the high specific surface area thereof, and iron oxide nanotubes manufactured thereby, which can easily remove and recover phosphorous. The present invention is advantageous in that iron oxide nanotubes can be acquired, which have cylindrical tubes evenly formed on the surface thereof in nano-sized structures, which have a large specific surface area, thereby having excellent capability to adsorb and desorb phosphate, and which can be reused, thereby being usefully applicable even during actual processes. The present invention also relates to a method for manufacturing magnetic iron powder and a device for removing and recovering phosphate using the same and, more particularly, to a method for manufacturing magnetic iron powder conveniently and easily, which has excellent capability to adsorb and desorb phosphate, and a device for removing and recovering phosphate, which has been improved to further increase the efficiency of magnetic iron powder. According to the present invention, magnetic iron power can be simply manufactured, which not only has excellent capability to adsorb and desorb phosphate, but also can be reused, thereby being usefully applicable even during actual processes. There is also another advantage in that, when the magnetic iron powder is used for the device for removing and recovering phosphate according to the present invention, high-purity phosphate can be secured, and the recovered magnetic iron powder can also be used repeatedly.
摘要:
Provided is a nonvolatile memory device. The nonvolatile memory device includes: first and second electrodes spaced from each other; at least one nano crystal layer disposed between the first and second electrodes; and first and second material layers respectively disposed between the first and second electrodes and the nano crystal layer and having a bistable conductive property, wherein the first and second material layers are formed asymmetrical to each other.
摘要:
The present invention relates to an apparatus and method for transmitting through an adaptive channel using a channel state. According to one embodiment of the present invention, a method for a remote node to transmit through a channel includes the steps of: intermittently receiving a forward channel signal transmitted from a host node; estimating a reverse channel state on the basis of the received forward channel signal; and determining whether or not the estimated reverse channel state satisfies preset channel conditions, and adaptively transmitting a reverse channel signal according to the determined result.
摘要:
A flash memory having a three-dimensional structure and using a fringing effect, and a method for manufacturing same are disclosed. A through-hole, which penetrates through a plurality of gate electrodes that are perpendicularly stacked, is formed on a substrate, and the inside of the through-hole is filled with a tunneling insulation membrane or an activated region. As a result, a charge storage layer is not formed inside the through-hole but is formed outside the through-hole. The charge storage layer is formed inside an inter-cell insulation membrane that fills a separated space between the gate electrodes. When a fringing field is applied, charge in the activated region is trapped in the charge storage field by means of the inter-cell insulation membrane.
摘要:
Disclosed is a NAND flash memory which is vertically elongated from a substrate and has a multi-layered lamination structure. A control gate is formed by alternating with an interlayer insulating film. In addition, the control gate is separated in a direction parallel to the substrate through a barrier insulating film. Therefore, only one side of the control gate is in contact with a blocking insulating film. As a result, independent charge-trapping is enabled from one stack structure to both sides thereof. Consequently, the density of flash memory is increased and charge controllability is improved.
摘要:
Disclosed are a method, and an apparatus, for setting the size of an encoding unit. The encoding apparatus according to the present invention may comprise: a prediction mode setting part which sets a prediction mode for the encoding unit in a present depth; and a determining part which, if the above-set prediction mode corresponds to a predetermined threshold value, omits a determination on an encoding unit of a sub-depth and sets the size of the encoding unit of the present depth to be the size of an optimum encoding unit. The method and apparatus of the present invention exhibit the effect of enabling the time required for encoding motion pictures to be shortened in all devices which use the encoding apparatus.
摘要:
Disclosed is a prediction method adopting in-loop filtering. According to the present invention, a prediction method for encoding and decoding video comprises the following steps: generating a residual block of the current block through an inverse quantization and inverse transform; generating a prediction block of the current block through an intra-prediction; performing in-loop filtering on the current block in which the residual block and the prediction block are combined; and storing the current block, on which the in-loop filtering is performed, in a frame buffer for an intra-prediction of the next block to be encoded. As described above, prediction is performed using an in-loop filter during processes for encoding and decoding video, thereby improving the accuracy of prediction and reducing errors in prediction, thus improving the efficiency of video compression and reducing the amount of data to be transmitted.
摘要:
According to the present invention, a software-defined radio terminal apparatus is a software-defined radio terminal apparatus which is adaptively constituted based on radio applications, and may comprise a storage unit, a microprocessor, and a baseband accelerator. The microprocessor reads, from the storage unit, a code, including a radio controller layer and a baseband driver layer, and executes the code, wherein the radio controller layer delivers a control command for controlling the baseband accelerator and information to be transmitted, from an upper layer to the baseband accelerator, and delivers the information received from the baseband accelerator to the upper layer, wherein the baseband driver layer provides interface between the radio controller layer and the baseband accelerator. In addition, the microprocessor is configured to load at least one functional block required for the implementation of a radio application from the storage unit to the baseband accelerator, and the functional block loaded to the baseband accelerator includes a baseband control functional block for controlling the baseband accelerator in real time.
摘要:
The present invention relates to a diblock copolymer that may facilitate formation of a finer nano pattern, and be used for manufacture of an electronic device including a nano pattern or a bio sensor, and the like, a method for preparing the same, and a method for forming a nano pattern using the same, The diblock copolymer comprises a hard segment including at least one specific acrylamide-based repeat unit, and a soft segment including at least one (meth)acrylate-based repeat unit.
摘要:
The present invention relates to an anode active material with whole particle concentration gradient for a lithium secondary battery, a method for preparing same, and a lithium secondary battery having same, and more specifically, to a composite anode active material, a method for manufacturing same, and a lithium secondary battery having same, the composite anode active material having excellent lifetime characteristics and charge/discharge characteristics through the stabilization of crystal structure as the concentration of a metal comprising the anode active material shows concentration gradient in the whole particle, and having thermostability even in high temperatures.