Abstract: A light emitting device includes a substrate; a pattern of a plurality of protrusions protruding from the substrate; a first semiconductor layer provided on the substrate; an active layer provided on the first semiconductor layer; and a second semiconductor layer provided on the active layer, in which each of the protrusions includes a first layer formed integrally with the substrate and protruding from an upper surface of the base substrate; and a second layer provided on the first layer and formed of a material different from that of the first layer.

Abstract: The present invention relates to a nanoscreen for regulating stem cell adhesion and differentiation. Moreover, the present invention relates to a method of regulating stem cell adhesion and differentiation using the nanoscreen. According to the nanoscreen of the present invention and the method of regulating stem cell adhesion and differentiation using the same, it is possible to efficiently regulate stem cell adhesion and differentiation by applying a magnetic field to the nanoscreen.

Abstract: Provided is a memory device that includes a memory bank including a plurality of memory cells arranged in a region where a plurality of word lines and a plurality of bit lines of the memory device intersect each other, a sense amplifier configured to amplify a signal transmitted through selected bit lines among the plurality of bit lines, and an arithmetic circuit configured to receive a first operand from the sense amplifier, receive a second operand from outside the memory device, and perform an arithmetic operation by using the first operand and the second operand, based on an internal arithmetic control signal generated in the memory device.

Abstract: According to various embodiments of the present invention, an electronic device comprises: a memory including instructions and a training database, which includes data, on at least one object, acquired on the basis of an artificial intelligence algorithm; at least one sensor; and a processor connected to the at least one sensor and the memory, wherein the processor can be configured to execute the instructions in order to acquire data on a designated area including the at least one object by using the at least one sensor, identify location information and positioning information on the at least one object on the basis of the training database, and transmit a control signal for picking the at least one object to a picking tool related to the electronic device on the basis of the identified location information and positioning information.

Abstract: The present invention relates to a method for extracting nucleic acids from a biological sample, and the extraction method presents a novel method for effectively extracting nucleic acids. When nucleic acids are extracted from biological samples in the related art, various impurities present in the biological samples are not properly removed, such that the purification rate is low, but the present invention provides a method for extracting nucleic acids from a biological sample of which the bacteria, virus and nucleic acid recovery rates are enhanced, by adding a surfactant and a sodium sulfate (Na2SO4) solution in a biological sample disruption step and a purification step, thereby enabling pathogens to be detected more sensitively and accurately.

Abstract: A light emitting diode according to an exemplary embodiment of the present disclosure includes: a first conductivity type nitride semiconductor layer; a V-pit generation layer disposed on the n-type nitride semiconductor layer and having a V-pit; a lower active layer disposed on the V-pit generation layer; an upper active layer disposed on the lower active layer; an intermediate layer disposed between the lower active layer and the upper active layer; a second conductivity type nitride semiconductor layer disposed on the upper active layer, an upper step coverage layer disposed between the second conductivity type semiconductor layer and the upper active layer; and a lower step coverage layer disposed between the intermediate layer and the lower active layer, in which in an electroluminescence spectrum, the light emitting diode emits light having a highest peak intensity in a wavelength range of 500 nm or more in a visible light region.

Abstract: Provided is a method for preparing an oligomer including: supplying a monomer stream and a solvent stream to a reactor to perform an oligomerization reaction to prepare a reaction product; supplying a discharge stream from the reactor including the reaction product to a separation device and supplying a lower discharge stream from the separation device to a settling tank; adding an organic flocculant to the settling tank to settle and remove a polymer and supplying the lower discharge stream from the separation device from which the polymer is removed to a high boiling point separation column; and removing a high boiling point material from the lower portion in the high boiling point separation column and supplying an upper discharge stream including an oligomer to a solvent separation column.

Abstract: Embodiments of the invention are directed to annotating a log based on processing log documentation. Aspects include obtaining the data set and obtaining a set of templates, wherein one or more template of the set of templates includes a variable labeled as the data type. Aspects also include annotating the data set based on the set of templates, wherein the annotating includes labeling each value of the variable in the data set with the data type. Aspects further include creating an updated data set by replacing each value of the variable in the data set that is labeled with the data type with a new data value.

Abstract: Embodiments of the invention are directed to annotating a log based on processing log documentation. Aspects include obtaining the log having a plurality of entries. Aspects also include creating a set of log entry templates by processing the log documentation associated with the log, wherein each log entry template includes one or more constants and one or more variables. Aspects further include annotating each of the plurality of entries based on the set of templates, wherein the annotating includes labeling each value of the one or more variables with a variable name.

Abstract: A light emitting device and a light emitting module having the same are provided. A light emitting device includes: a first conductivity type semiconductor layer; a second conductivity type semiconductor layer; and an active layer disposed between the first conductivity type semiconductor layer and the second conductivity type semiconductor layer, in which, upon operation, the active layer emits light of a first peak wavelength and light of a second peak wavelength in which the first peak wavelength may be within a range of about 400 nm to about 415 nm, and the second peak wavelength may be greater than or equal to about 440 nm.

Abstract: A light emitting diode according to an exemplary embodiment of the present disclosure includes: a first conductivity type nitride semiconductor layer; a V-pit generation layer disposed on the n-type nitride semiconductor layer and having a V-pit; a lower active layer disposed on the V-pit generation layer; an upper active layer disposed on the lower active layer; an intermediate layer disposed between the lower active layer and the upper active layer; and a second conductivity type nitride semiconductor layer disposed on the upper active layer, in which the lower active layer and the upper active layer emit light having different peak wavelengths from each other.

Abstract: According to an aspect, a method includes searching for a correlated log identifier in a correlation database based on detecting a metrics-based anomaly. The method also includes providing, in a problem diagnosis, related log information associated with the correlated log identifier based on locating one or more log entries including the correlated log identifier in a same time window as the metrics-based anomaly. The method further includes searching for a correlated metric in the correlation database based on detecting a log-based anomaly and providing, in the problem diagnosis, related metric information associated with the correlated metric based on locating one or more metrics records including the correlated metric in the same time window as the log-based anomaly.

Abstract: Methods, systems, and computer program products for identifying and redacting data from diagnostic operations via monitoring of data are provided herein. A computer-implemented method includes automatically monitoring data, which includes determining which portions of the data are accessed during a diagnostic operation; parsing an input file into portions of parsed data, wherein the input file comprises an initial output of the diagnostic operation; classifying the portions of parsed data into classes by applying at least one of multiple classification models to the parsed data, wherein the at least one classification model is specific to the accessed portions of data; automatically identifying sensitive data in the classified portions of parsed data by applying a class-to-sensitivity mapping technique to the classified portions of parsed data; redacting the identified sensitive data from the input file; and generating and outputting an updated output of the diagnostic operation based on the redacting.

Abstract: The present disclosure provides an apparatus for preparing oligomer including: a reactor; a gas-liquid separator; a solvent transfer line; a second transfer line; a first spray nozzle unit; and a second spray nozzle unit. The apparatus is capable of improving stability of the entire process by including a first spray nozzle unit and a second spray nozzle unit in a reactor and thus preventing by-products containing polymer substances such as C20+ from being entrained with a desired product during a reaction.

Abstract: The present disclosure relates to an apparatus for preparing an oligomer, including: a reactor receiving a monomer stream and performing an oligomerization reaction to prepare a reaction product; a product discharge line for transferring a reaction product stream discharged from the reactor; and a bubble catcher provided in any area of the product discharge line to remove bubbles contained in the reaction product stream.

Abstract: Techniques for refinement of data pipelines are provided. An original file of serialized objects is received, and an original pipeline comprising a plurality of transformations is identified based on the original file. A first computing cost is determined for a first transformation of the plurality of transformations. The first transformation is modified using a predefined optimization, and a second cost of the modified first transformation is determined. Upon determining that the second cost is lower than the first cost, the first transformation is replaced, in the original pipeline, with the optimized first transformation.

Abstract: Provided are a non-heat treated wire rod having high drawability and impact toughness, and a method for manufacturing the non-heat treated wire rod. The non-heat treated wire rod includes, by wt%, C: 0.02% to 0.30%, Si: 0.05% to 0.8%, Mn: 0.5% to 2.0%, Cr: 1.0% or less, P: 0.03% or less, S: 0.03% or less, sol.Al: 0.01% to 0.07%, N: from greater than 0.01% to 0.02%, Nb: 0.1% or less, V: 0.5% or less, and Ti: 0.1% or less, and a balance of Fe and inevitable impurities, wherein the non-heat treated wire rod has a microstructure including ferrite and pearlite.

Abstract: Disclosed is a bearing wire rod includes, in percent by weight (wt %), 0.8 to 1.2% of C, 0.01 to 0.6% of Si, 0.1 to 0.6% of Mn, 1.0 to 2.0% of Cr, 0.01 to 0.06% of Al, 0.02% or less (exclusive of 0) of N, and the balance of Fe and inevitable impurities, wherein a prior austenite grain size of a microstructure is from 3 to 10 ?m, and a sum of lengths of high angle grain boundaries having a misorientation angle of 15° or more per unit area is from 1,000 to 4,000 mm/mm2.

Abstract: A printed circuit board includes a first insulating layer having a through hole, and a via disposed to fill the through hole and to be extended to at least one surface of the first insulating layer, wherein the via includes a plating layer having an inner wall part disposed on an inner wall of the through hole and a land part extended from the inner wall part and disposed on the at least one surface of the first insulating layer, and a metal paste layer including metal particles, and filled in the rest of the through hole and disposed on the plating layer.

Abstract: A multi-band light emitting diode is provided. The multi-band light emitting diode includes a first conductivity type semiconductor layer, a V-pit generation layer disposed on the first conductivity type semiconductor layer and having a first V-pit of a first inlet width, a stress relief layer disposed on the V-pit generation layer and providing a second V-pit of a second inlet width greater than the first inlet width of the V-pit on the first V-pit, an active layer disposed on the stress relief layer and including a first active layer region formed on a flat surface of the stress relief layer and a second active layer region formed in the second V-pit, and a second conductivity type semiconductor layer disposed on the active layer.