Abstract: A method and device for controlling an irradiating light for photographing an iris is provided. The device includes a light source configured to generate light, an active lens configured to adjust a refractive index of light passing through the active lens, an image capturer configured to capture an image of the iris by using a camera, and a controller configured to control the active lens to change the refractive index of the light passing through the active lens based on distance, motion and ambient light levels.

Abstract: A wearable device includes: a sensor configured to capture a vein image of a user; and a processor configured to control the sensor to capture the vein image of the user wearing the wearable device when a function or an application is selected, identify the user by comparing the captured vein image with at least one registered vein image, and execute the function or the application when the user has execution authority.

Abstract: Disclosed are a method and apparatus for controlling a booster circuit such that maximum power is extracted from a power supply while power consumption for monitoring power generated by the power supply is reduced, and an apparatus for extracting maximum power by using the method and apparatus for controlling a booster circuit.

Abstract: A method of drawing a three-dimensional (3D) object on a user terminal is provided. The method includes displaying a 3D space including a two-dimensional (2D) or 3D object on the user terminal, obtaining vector information regarding a depthwise direction in the 3D space based on a user's gesture performed across a body of an electronic pen, and performing a 3D drawing function on the 2D or 3D object, based on the vector information.

Abstract: A polyethylene terephthalate multifilament prepared by spinning polyethylene terephthalate chips having an intrinsic viscosity of 0.8 to 1.3 is provided. In order to improve the energy absorption capability of a textile for polyethylene terephthalate air bags, a textile for air bag having an improved rupture property at a welt portion in an air bag cushion deployment test can be prepared using a polyethylene terephthalate fiber by adjusting a strength/deformation curve of the polyethylene terephthalate fiber. Here, the polyethylene terephthalate fiber has a strength/deformation curve in which the polyethylene terephthalate fiber extends by less than 4% when subjected to an initial stress of 1.0 g/d at room temperature, extends by less than 12% subjected to a medium stress of 4.5 g/d and extends by 3% or more until fibers are cut at a tensile strength of at least 7.

Abstract: A package substrate, a manufacturing method thereof, a base package module, and a multi-layered package module having package substrates laminated on upper and lower portions of a base package module are provided. The base package module includes a base metal substrate, a first metal oxide layer that is formed on the base metal substrate to have a cavity therein, a device that is mounted in the cavity on the base metal substrate and insulated by the first metal oxide layer formed on a sidewall in the cavity, and a conductor that is connected to the device and a wiring pad formed on the first metal oxide layer on the base metal substrate. The package substrate includes a wiring pad, a conductor line, a second metal oxide layer having an opening that exposes a device, and a via that is connected to the wiring pad through a connection pad in the second metal oxide layer.

Abstract: A high strength polyamide fiber consisting of polyamide monofilaments each having a fineness of less than 4 denier and a stress-strain curve where (a) the monofilament elongates less than 5% when subjected to an initial stress of 1.0 g/d, (b) it elongates less than 12% when subjected to a middle stress of 4.5 g/d, and (c) it elongates more than 3% over a tensile strength range from a tensile strength of at least 9.0 d/g to the tensile strength at break of the monofilament, the elongation values being measured at ambient temperature.

Abstract: The present invention relates to a low shrinkage polyamide fiber suitable for use as a yam of a fabric for airbags and an uncoated fabric for airbags produced using the same. The fabric produced using the low shrinkage polyamide fiber of the present invention has high tensile strength and tear strength, and excellent quality, and thus, is useful as a fabric for airbags.

Abstract: A high strength polyamide fiber consisting of polyamide monofilaments each having a fineness of less than 4 denier and a stress-strain curve where (a) the monofilament elongates less than 5% when subjected to an initial stress of 1.0 g/d, (b) it elongates less than 12% when subjected to a middle stress of 4.5 g/d, and (c) it elongates more than 3% over a tensile strength range from a tensile strength of at least 9.0 d/g to the tensile strength at break of the monofilament, the elongation values being measured at ambient temperature.

Abstract: The present invention relates to a low shrinkage polyamide fiber suitable for use as a yarn of a fabric for airbags, and an uncoated fabric for airbags produced using the same. The uncoated fabric for airbags is produced by a method comprising the steps of: (A) weaving a low shrinkage polyamide fiber having a dry heat shrinkage of 3-6% (190° C. for 15 minutes) into a grey fabric for airbags; (B) heat-shrinking the grey fabric by successively passing it through 3-10 aqueous baths, the temperature of each of which is 5-20° C. higher than that of the preceding aqueous bath; (C) additionally heat-shrinking the fabric from the aqueous baths by passing it through a steam heater; and (D) drying the fabric from the steam heater by passing it through a hot air drier. The fabric produced using the low shrinkage polyamide fiber of the present invention has high tensile strength and tear strength, and excellent quality, and thus, is useful as a fabric for airbags.

Abstract: The present invention relates to a polyamide fiber for uncoated airbags, the fineness and stress-strain curve of the monofilaments of which were controlled such that the polyamide fiber can absorb impact energy which occurs instantaneously when the airbags operate. More particularly, the present invention relates to a high strength polyamide fiber consisting of polyamide monofilaments each having a fineness of less than 4 denier and a stress-strain curve where (a) the monofilament elongates less than 5% when subjected to an initial stress of 1.0 g/d, (b) it elongates less than 12% when subjected to a middle stress of 4.5 g/d, and (c) it elongates more than 3% over a tensile strength range from a tensile strength of at least 9.0 d/g to the tensile strength at break of the monofilament, the elongation values being measured at ambient temperature. A fabric produced using the inventive polyamide fiber has high tensile strength and high tear strength, so that it will be useful as an uncoated fabric for airbags.

Abstract: The present invention relates to a low shrinkage polyamide fiber suitable for use as a yarn of a fabric for airbags, and an uncoated fabric for airbags produced using the same. The uncoated fabric for airbags is produced by a method comprising the steps of: (A) weaving a low shrinkage polyamide fiber having a dry heat shrinkage of 3-6% (190° C. for 15 minutes) into a grey fabric for airbags; (B) heat-shrinking the grey fabric by successively passing it through 3-10 aqueous baths, the temperature of each of which is 5-20° C. higher than that of the preceding aqueous bath; (C) additionally heat-shrinking the fabric from the aqueous baths by passing it through a steam heater; and (D) drying the fabric from the steam heater by passing it through a hot air drier. The fabric produced using the low shrinkage polyamide fiber of the present invention has high tensile strength and tear strength, and excellent quality, and thus, is useful as a fabric for airbags.

Abstract: In the process for continuously dyeing a poly(trimethylene terephthalate) bulked continuous filament yarn carpet an aqueous dyeing solution is applied to a continuously moving poly(trlmethylene terephthalate) bulked continuous filament yarn carpet at a temperature of 45° C. to 100° C., and then the poly(trimethylene terephthalate) bulked continuous filament yam carpet is steamed, rinsed and dried. Before applying the aqueous dyeing solution the carpet is heat-set at 120 to 150° C. The carpet is steamed with saturated steam at 102 to 150° C. for 5 to 10 mm. The aqueous dyeing solution does not include an anti-frosting agent. The process also advantageously includes heating the carpet with a dry heat of 140 to 300° C. for 30 to 60 sec after steaming the carpet and before rinsing it.

Abstract: Disclosed is a process for dyeing a poly(trimethylene terephthalate) BCF yarn carpet continuously, in which an aqueous dyeing solution is applied to a continuously moving poly(trimethylene terephthalate) bulked continuous filament yarn carpet, and then the poly(trimethylene terephthalate) bulked continuous filament yarn carpet is steamed, rinsed, and dried, characterized in that the carpet is heat-set at 120 to 150° C. and then steamed with saturated steam at 102 to 150° C. for 5 to 10 min. The carpet may be dyed by using the aqueous dyeing solution of 45 to 90° C., or by using the aqueous dyeing solution comprising an anti-migration agent at room temperature as well as by heating the carpet with a dry heat of 140 to 300° C. for 30 to 60 sec after steaming the carpet and before rinsing it.