摘要:
Provided are an apparatus and method for eliminating noise. The method includes: detecting a speech section from a noise speech signal including a noise signal; separating the speech section into a consonant section and a vowel section on the basis of a VOP at the speech section; calculating a transfer function of a filter for eliminating the noise signal to allow the degree of noise elimination to be different in the consonant section and the vowel section; and eliminating the noise signal from the noise speech signal on the basis of the transfer function.
摘要:
Disclosed herein is a friction type retrofitting device for steel tower structures. The retrofitting device includes a coupling part which couples an outer column and an inner column of a post of a steel tower to each other using an angle bracket and a bolt. A slot is formed in a portion of the outer column to which the coupling part is coupled. A friction plate is provided to contact an outer circumferential surface of the slot. Thereby, wind energy transmitted to the steel tower is attenuated by friction between the outer circumferential surface of the slot of the coupling part and the friction plate.
摘要:
The present invention relates to a process of preparing zinc-tin composite transparent conductive oxide films ZnxSnyOz superior in light transmission, interfacial adhesion strength and electric conductivity by an organic chemical deposition method by using an electron cyclotron resonance (ECR).Zinc-tin oxide film composite ZnxSnyOz (x=1, y=8.7, Z=12) stably prepared by an electron-cyclotron chemical vapor deposition according to the present invention is superior to ZnSnO3 and Zn2SnO4 prepared by a physical deposition method in electric conductivity, thereby being applicable in a wide range of electric appliances including a heating element.