Hyundai Motor Company

Kia Motors Corporation

Korea Advanced Institute of Science and Technology

Kia Corporation

Tyco Electronics Amp Korea Co., Ltd.

Ultraband Fiber Optics, Inc.

Kyung Hwan Oh

Soon Hyung Hong

Si Won Yu

Jae Min Cha

Byoung Yoon Kim

Seok Hyun Yun

Bong Wan Lee

Yeon Wan Koh

Young Deok Kim

Won Jong Choi

Eul Chul Byeon

Jin Ha Kim

Hyeong Won Park

Disclosed is a method of predicting a lifespan of a material by using a material parameter and by using Equation described below. in which y is the physical property retention rate, x is the aging time, θ is a scale parameter, β is a shape parameter, and γ is the material parameter.

Method of predicting lifespan of material

A basalt-fiber-reinforced thermoplastic composite material may include a thermoplastic resin and a basalt fiber as a reinforcement, wherein the basalt fiber is surface-treated with an alkoxy-group-substituted silane compound.

Basalt-fiber-reinforced thermoplastic composite material and method of manufacturing the same

A pressure sensor is disclosed. The pressure sensor has a sensor module having a strain gauge measuring a pressure of a gas flowing into a passage of the sensor module, a substrate electrically connected to the strain gauge, a frame covering a portion of the sensor module and supporting the substrate, a terminal electrically connected to the substrate and contacting a contact point of an external device, a terminal holder supporting the terminal, and a housing having an end connected to the sensor module and covering a portion of the terminal holder.

Pressure sensor for a brake system

The present invention relates to an optical fiber having a normalized frequency applicable to a broadband optical device, and to a broadband, polarization-independent, low-loss optical fiber device made by using the aforementioned optical fiber. The optical fiber of the present invention has a normalized frequency value V, structural parameters of which including a core radius, a core refractive index and a cladding refractive index are adjusted to minimize the beat dispersion between first and second modes in a predetermined frequency range. Various optical fiber devices may be achieved if the aforementioned optical fiber is used along with acoustic wave generating means and a mode dropper or a mode selective coupler.

Optical fiber for broadband optical devices and optical fiber devices using thereof

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Seoul, South Korea

Kyung Hwan Oh