Abstract: The present invention provides an apparatus for measuring the propagation velocity of a sound wave that may easily and accurately measure the propagation velocity of a sound wave in the horizontal and vertical directions of the sample by using the fixing unit preventing the measurement unit from vibrating and the distance measurement unit capable of accurately measuring the distance between the sound wave transmission and reception units, and a method of measuring the propagation velocity of a sound wave by using the apparatus.

Abstract: A nonlinear dynamic focusing control method includes: (1) using a minimum length in a scan line having the minimum length and a maximum length as an initial location and assigning a focal point on the scan line; (2) calculating half depth of focus of the focal point, and the initial location plus the half depth of focus of the focal point being the location of this focal point on the scan line; (3) determining an initial calculation location of the next focal point by adding the half depth of focus of the focal point from the location of this focal point on the scan line in the direction of the maximum length; and (4) determining if the initial calculation location of the next focal point is greater than the maximum length.

Abstract: A hydrogel composition is provided that includes crosslinked dextran and dextran sulfate. The hydrogel composition may be included in a matrix that includes an osmotically active material immobilized in the matrix. The hydrogel composition can be combined into superabsorbent preparations that are capable of adsorbing large amounts of water. The superabsorbent preparations have advantages in the use of absorbent materials for physiological fluids, such as diapers, incontinence products, wound dressings and the like, as well as agricultural and environmental applications. In addition, biodegradable superabsorbents of the invention can be prepared.

Abstract: The instant invention discloses a polylactic acid stereocomplex composition containing pure stereocomplex crystals and a process for its manufacture. The composition according to this invention comprising (a) 30-70 wt % poly (L-lactic acid) (PLLA). (b) 70-30 wt % poly (D-lactic acid) (PDLA) and (c) 0.01-10 wt % nucleating agent, which can be obtained by solution and melt blending. Stereocomplex crystals are preferentially formed according to the invention, and the homocrystals (a crystal form) for the PLLA or PDLA homopolymer can't be observed. The melting temperature of the composition according to the invention is at least 200° C., which is about 30-50° C. higher than the PLLA or PDLA homopolymer.

Abstract: Provided are an energy harvesting device, a method for manufacturing the same, and a wireless device including the same. The energy harvesting device may include a support body, a first cantilever connected to the support body, and an electricity generation layer on the first cantilever. The first cantilever may have a thickness that gradually increases in a direction that is away from the support body.

Abstract: An underground localization method and a system therefor are provided. The underground localization method includes computing location information of a dead reckoning using a gyro sensor and a distance movement sensor of moving equipment, measuring physical information according to the computed location information of the dead reckoning and searching for the physical information which is determined as being matched with the location information of the dead reckoning, and optimizing a location by reflecting location information of the physical information which is determined as being matched with the location information of the dead reckoning.

Abstract: Provided are a low emissivity film and a window having the same. According to an embodiment of the inventive concept, the low emissivity film may include a first substrate, a first metal oxide layer, a first reflective layer, a second metal oxide layer, and a second substrate. The first metal oxide layer may reflect light having a wavelength of infrared rays. The light having a first wavelength is reflected by cavity effect of the first metal oxide layer, the first reflective layer, and the second metal oxide layer, and the light having a second wavelength may pass through the low emissivity film. Thus, the low emissivity film may express a color.

Abstract: Processes and apparatuses for producing biologically-active, protein-rich microparticles under ambient conditions are disclosed. A protein solution is atomized and collected in a dehydration solvent that is being mixed. The resulting protein microparticles retain high specific activity without the need for large amounts of stabilizing excipients.

Abstract: The present invention relates to a highly liquid absorbent and hardly water-soluble carboxymethyl cellulose (CMC) foam, which absorbs body fluid or water, expands in volume when absorbing liquid, does not gelate, and maintains shape. The hardly water-soluble CMC foam prepared according to the preparation method of the present invention has remarkably superior liquid absorption property, shows large volume expansibility when absorbing liquid, does not gelate, and maintains shape. Therefore, a remarkably improved ability is shown when used as a hemostatic agent and a wound dressing. In addition, when the CMC foam is treated with a CMC powder dispersing liquid, the surface characteristics change, thereby preventing adhesion with the skin and improving liquid retention capability. Thus, it is possible to control the liquid absorption property thereof to meet the desired purpose.

Abstract: Disclosed in the present disclosure are substances having tyrosine kinase inhibitory activity and a preparation method and use thereof, wherein the substances are the compounds having the structure of general formula (I) or the geometric isomers or pharmaceutical salts thereof. Through evaluation on tyrosine kinase inhibitory activity and related experiments, the present disclosure demonstrates that these compounds have a good tyrosine kinase inhibitory activity, and may inhibit a variety of tumor cells, and thus may be developed into drugs for preventing and treating tumor diseases, especially liver cancer, lung cancer and neuroblastoma.

Abstract: A system and method for firmware upgrade in an AMI are provided. A remote server provides a firmware image file. After receiving the firmware image file and verifying the remote server, a data concentrator transmits at least one encoding symbol generated from the firmware image file to at least one meter through broadcasting and a retransmission mechanism of minimum retransmission contents. Upon receiving a predetermined number of encoding symbols, each meter recovers the original firmware image file from the received encoding symbols. Then, each meter receives and verifies an activation code generated by the remote server before carrying out the firmware upgrade.

Abstract: Disclosed are a heat exchange reactor and a method of manufacturing the same, and a method of manufacturing a heat exchange reactor includes: preparing lateral plates provided with a plurality of slits formed in parallel in a longitudinal direction; disposing two lateral plates to be spaced apart from each other while facing each other in a vertical direction; forming a plurality of flow path channels by inserting flow path partition plates into one or more slits of the two lateral plates in a horizontal direction; forming a plurality of flow path channels by inserting printed circuit heat exchange plates, which autonomously include one or more heat exchange flow paths therein, into one or more slits of the two lateral plates in a horizontal direction; and bonding the lateral plates, the flow path partition plates, and the printed circuit heat exchange plates.

Abstract: Provided are nitrogen-doped carbon quantum dots as pyrolysis product of fumaronitrile. The carbon quantum dots may be formed in such a manner that nitrogen may be doped in an amount of 3-10 wt % based on the total weight of the carbon quantum dots with no need for a separate doping process. As a result, the carbon quantum dots have excellent properties, such as optical property, electroconductivity and thermal safety, and thus may be useful for photocatalysts or organic solar cells, or the like.

Abstract: An apparatus and a job scheduling method are provided. For example, the apparatus is a multi-core processing apparatus. The apparatus and method minimize performance degradation of a core caused by sharing resources by dynamically managing a maximum number of jobs assigned to each core of the apparatus. The apparatus includes at least one core including an active cycle counting unit configured to store a number of active cycles and a stall cycle counting unit configured to store a number of stall cycles and a job scheduler configured to assign at least one job to each of the at least one core, based on the number of active cycles and the number of stall cycles. When the ratio of the number of stall cycles to a number of active cycles for a core is too great, the job scheduler assigns fewer jobs to that core to improve performance.

Abstract: An omnidirectional antenna is provided. The omnidirectional antenna includes a spiral antenna including a substrate, at least one upper antenna pattern formed on the substrate, and at least one lower antenna pattern formed under the substrate and connected to the upper antenna pattern; and a monopole antenna that supports the spiral antenna and that is connected to the spiral antenna. Therefore, by forming an omnidirectional antenna in a spiral antenna having an upper antenna pattern and a lower antenna pattern at an upper surface and a lower surface, respectively, of a substrate, three-dimensional current flow is available and thus omnidirectional radiation characteristics may be exhibited.

Abstract: A method for diagnosing a biomarker using magnetic particles and quantum dots for quantitative analysis and a biomarker diagnosis kit are provided. The method for diagnosing a biomarker includes: ii) providing magnetic particles having surfaces to which a primary antibody capable of collecting a biomarker using a linker is fixed; ii) providing quantum dots having surfaces to which a secondary antibody capable of detecting the biomarker is fixed; iii) sandwich-targeting the biomarker by the magnetic particles and the quantum dots; iv) selectively separating quantum dots sandwich-targeting the biomarker among the quantum dots; and v) quantifying the concentration of the biomarker by measuring absorbance or intensity of fluorescence of separated quantum dots.

Abstract: Embodiments are generated directed to method, medium, and system including processing circuitry to generate records including randomly selected events for each of one or more subjects having one or more of the same category parameters as a subject of a particular event. The processing circuitry may also present, on a display device, a computer-generated model based on the records, the model having a decision tree data structure having decision tree nodes corresponding with historical events from the records, each of the decision tree nodes having an indication of a likelihood of occurrence for the particular event based on whether a corresponding history event of the decision tree node occurred or did not occur within a specific time period. Embodiments of the real-time distributed nature of the systems and processing discussed herein can solve big data analytics processing problems and facilitate data anomaly detection.

Abstract: The present invention relates to a method for recycling LiFePO4, which is an olivine-based cathode material for a lithium secondary battery. The present invention is characterized in that a cathode material including LiFePO4 is synthesized using, as precursors, amorphous FePO4.XH2O and crystalline FePO4.2H2O (metastrengite) obtained by chemically treating LiFePO4 as an olivine-based cathode material for a lithium secondary battery, which is produced from a waste battery. Since a cathode fabricated from the LiFePO4 cathode material synthesized according to the present invention does not deteriorate the capacity, output characteristics, cycle efficiency and performance of the secondary battery and the cathode material of the lithium secondary battery may be recycled, the secondary battery is economically efficient.

Abstract: A floating marine structure which includes a first float disposed at the center and a plurality of second floats disposed around the first float, where the first float has a floating body made of a floatable material in a polygonal prism shape, a damping unit coupled to the bottom of the floating body at the center, having the same cross-section as the floating body, having a cross-sectional area larger than the cross-sectional area of the floating body, and reducing a shake of the first float in the sea, and at least one coupling hole formed at each side of the floating body. The second float has the same shape as the floating body and has coupling protrusions formed at sides facing the sides of the floating body and inserted in the coupling holes, and wherein the coupling holes are formed at alternate sides of the floating body.

Abstract: A magnetic sensor for sensing an external magnetic field includes first and second electrodes and first and second magnetic tunneling junctions. The first and second electrodes are disposed over a substrate; and the first and second magnetic tunneling junctions are conductively disposed between the first and second electrodes and connected in parallel between the first and second electrodes. The first and second magnetic tunneling junctions are arranged along a first easy axis of the magnetic sensor. The first magnetic tunneling junction includes a first pinned magnetization and a first free magnetization, and the second magnetic tunneling junction includes a second pinned magnetization and a second free magnetization. The first free magnetization and the second free magnetization are arranged substantially in parallel to the first easy axis and in substantially opposite directions.