Abstract: An apparatus for measuring permittivity of a sample. The apparatus includes: a sample chamber including a sealed space portion in which a sample to be measured is put; a pressure adjusting unit for varying pressure by applying water pressure to the space portion of the sample chamber; a permittivity sensor for measuring permittivity of the sample and disposed outside the sample chamber; measurement conducting wires including conductors, installed to contact the sample and connected to the permittivity sensor by using electric wires; and a data logger for storing data relating to permittivity that is measured by the permittivity sensor.

Abstract: Provided are a filtering method and apparatus for removing blocking artifacts and ringing noise. The filtering method includes transforming video data on a block-by-block basis, and detecting the presence of an edge region in the video data by checking the distribution of values obtained by the transformation. Accordingly, it is possible to completely remove blocking artifacts and/or ringing noise by more effectively detecting the presence of an edge region in video data.

Abstract: Provided are a filtering method and apparatus for removing blocking artifacts and ringing noise. The filtering method includes transforming video data on a block-by-block basis, and detecting the presence of an edge region in the video data by checking the distribution of values obtained by the transformation. Accordingly, it is possible to completely remove blocking artifacts and/or ringing noise by more effectively detecting the presence of an edge region in video data.

Abstract: Provided are a filtering method and apparatus for removing blocking artifacts and ringing noise. The filtering method includes transforming video data on a block-by-block basis, and detecting the presence of an edge region in the video data by checking the distribution of values obtained by the transformation. Accordingly, it is possible to completely remove blocking artifacts and/or ringing noise by more effectively detecting the presence of an edge region in video data.

Abstract: Provided are a filtering method and apparatus for removing blocking artifacts and ringing noise. The filtering method includes transforming video data on a block-by-block basis, and detecting the presence of an edge region in the video data by checking the distribution of values obtained by the transformation. Accordingly, it is possible to completely remove blocking artifacts and/or ringing noise by more effectively detecting the presence of an edge region in video data.

Abstract: Provided are a filtering method and apparatus for removing blocking artifacts and ringing noise. The filtering method includes transforming video data on a block-by-block basis, and detecting the presence of an edge region in the video data by checking the distribution of values obtained by the transformation. Accordingly, it is possible to completely remove blocking artifacts and/or ringing noise by more effectively detecting the presence of an edge region in video data.

Abstract: A sequential sampler for runoff water. The sampler includes a rail member installed to be sloped downward in one direction; a plurality of storage members that move to a downward direction of the rail member; a stopper installed at a middle portion of the rail member that intermits a movement of the storage members; a device of supplying runoff water and inducing drop of storage cylinder that drops runoff water inside of the storage member stood by at a front portion of the stopper and drops the storage cylinder of the storage member stored with the runoff water after elapsing a predetermined time; and an intake pump of runoff water.

Abstract: Provided are a filtering method and apparatus for removing blocking artifacts and ringing noise. The filtering method includes transforming video data on a block-by-block basis, and detecting the presence of an edge region in the video data by checking the distribution of values obtained by the transformation. Accordingly, it is possible to completely remove blocking artifacts and/or ringing noise by more effectively detecting the presence of an edge region in video data.

Abstract: There is provided an apparatus for injecting a tracer within a groundwater observation well, which is capable of sequentially performing a tracer test by depth by injecting the tracer to a predetermined depth within the groundwater observation well. More particularly, the present invention relates to an apparatus and method for instantaneously injecting a tracer to a groundwater well, whereby opening and closing of a container receiving the tracer is controlled by using a pneumatic cylinder and the tracer on the ground is supplied to the container, so that the tracer is repeatedly carried and injected to a specific depth in a well.

Abstract: The present invention relates to a sequential groundwater sampler and a sampling method thereof, and more particularly, the sampler is constructed with a first pipe, a second pipe, a first cylinder unit and a second cylinder unit. The first pipe plays a role as a container for vacuum sample bottle. The first pipe is fixedly inserted to the second pipe. The second pipe is connected to the two cylinders to be moved up and down vertically while surrounding the first pipe by an advance and retreat of the second cylinder unit. The second pipe plays a role of, passing a syringe needle amounted at the end of a first piston in the first cylinder unit through a rubber plug of a vacuum sample bottle at the bottom end of the first pipe, or separating the syringe needle from the vacuum sample bottle, by an advance and retreat of the first cylinder unit. If the second cylinder and the first cylinder sequentially advance, groundwater is injected to the vacuum sample bottle at the bottom end of the first pipe.

Abstract: There is provided an apparatus for injecting a tracer within a groundwater observation well, which is capable of sequentially performing a tracer test by depth by injecting the tracer to a predetermined depth within the groundwater observation well. More particularly, the present invention relates to an apparatus and method for instantaneously injecting a tracer to a groundwater well, whereby opening and closing of a container receiving the tracer is controlled by using a pneumatic cylinder and the tracer on the ground is supplied to the container, so that the tracer is repeatedly carried and injected to a specific depth in a well.

Abstract: Provided is a coding and decoding method and apparatus using a plurality of scanning patterns. The method for coding image data includes: (a) obtaining N×M data by firstly source-coding the image data; (b) scanning the N×M data using a predetermined scan pattern selected from a plurality of scan patterns in response to the obtained N×M data; and (c) firstly source-coding the scanned data. Accordingly, coding and decoding image data having various characteristics can be implemented efficiently. Particularly, even for the image data having an interlaced scanned frame format, more efficient coding and decoding can be achieved.

Abstract: Provided are a filtering method and apparatus for removing blocking artifacts and ringing noise. The filtering method includes transforming video data on a block-by-block basis, and detecting the presence of an edge region in the video data by checking the distribution of values obtained by the transformation. Accordingly, it is possible to completely remove blocking artifacts and/or ringing noise by more effectively detecting the presence of an edge region in video data.

Abstract: Provided are a filtering method and apparatus for removing blocking artifacts and ringing noise. The filtering method includes transforming video data on a block-by-block basis, and detecting the presence of an edge region in the video data by checking the distribution of values obtained by the transformation. Accordingly, it is possible to completely remove blocking artifacts and/or ringing noise by more effectively detecting the presence of an edge region in video data.

Abstract: Provided are a filtering method and apparatus for removing blocking artifacts and ringing noise. The filtering method includes transforming video data on a block-by-block basis, and detecting the presence of an edge region in the video data by checking the distribution of values obtained by the transformation. Accordingly, it is possible to completely remove blocking artifacts and/or ringing noise by more effectively detecting the presence of an edge region in video data.

Abstract: A portable memory device supporting a plurality of interfaces includes a body, a first connector disposed on an end of the body, a slider adjacent to the body so as to slide back and forth between a first position exposing the first connector and a second position covering the first connector, a second connector disposed on an end of the slider to connect the portable memory device to another electronic device via an interface different from an interface that the first connector supports, and a memory disposed inside the body and connected to the first connector and the second connector.

Abstract: A method and device to seamlessly reproduce contents includes receiving contents being reproduced in a first reproduction device from the first reproduction device, when the reproduction of the contents is stopped in the first reproduction device, receiving contents reproduction stopping point information from the first reproduction device, and outputting the contents and the contents reproduction stopping point information to a second reproduction device by using the contents reproduction stopping point information.

Abstract: Some embodiments of the present invention are related to devices and methods for sampling groundwater at multiple target depths, wherein each of the devices for sampling groundwater at multiple target depths comprises: a hammer part having a spring for generating inertia and a hammer connected to the spring; a sampling needle part having a needle integral with a impacting part impacted with the hammer; a guiding part for moving the sampling needle part in straight and downward direction; and a sampled water containing part having a sampled water container for collecting the sampled water through the needle.

Abstract: Provided is a coding and decoding method and apparatus using a plurality of scanning patterns. The method for coding image data includes: (a) obtaining N×M data by firstly source-coding the image data; (b) scanning the N×M data using a predetermined scan pattern selected from a plurality of scan patterns in response to the obtained N×M data; and (c) firstly source-coding the scanned data. Accordingly, coding and decoding image data having various characteristics can be implemented efficiently. Particularly, even for the image data having an interlaced scanned frame format, more efficient coding and decoding can be achieved.

Abstract: Provided are a filtering method and apparatus for removing blocking artifacts and ringing noise. The filtering method includes transforming video data on a block-by-block basis, and detecting the presence of an edge region in the video data by checking the distribution of values obtained by the transformation. Accordingly, it is possible to completely remove blocking artifacts and/or ringing noise by more effectively detecting the presence of an edge region in video data.