28 research outputs found
νκΈ°-무μ°μ-νΈκΈ° 곡μ μ μ΄μ©ν νμμ μ§μΒ·μΈ μ κ±°μ κ΄ν μ°κ΅¬
νμλ
Όλ¬Έ(μμ¬)--μμΈλνκ΅ λ³΄κ±΄λνμ :ν경보건νκ³Ό ν경보건μ 곡,2000.Maste
Localization of Mono Microphone with Stereo Loudspeaker Using Hidden Time Synchronization Signal in Audio
νμλ
Όλ¬Έ (μμ¬)-- μμΈλνκ΅ λνμ : μ κΈ°Β·μ»΄ν¨ν°κ³΅νλΆ, 2012. 2. μ±κ΅λͺ¨.νλ²μ₯μΉ(Navigation System)μ μ¬λ¬ κ°μ§ μ©λμ κ·Έ μ©λμ λ§λ μ μ ν λ°©λ²μΌλ‘ ꡬνλμ΄ μλ€. κ°μ₯ λνμ μΈ νλ² μ₯μΉμΈ GPS μ λΉμ·ν λ°©λ²μΌλ‘, GPS μ νΈκ° λλ¬νμ§ μλ μ€λ΄μμλ μ¬μ©ν μ μλ λ§μ μμΉνμΈ μμ€ν
λ€μ΄ κ°λ°λμ΄ μλ€. μ΄λ¬ν μ€λ΄μ μ λ°ν μμΉνμΈ μμ€ν
μ μ μΈμ μ΄λ μ μκΈ°νλ₯Ό μ¬μ©νκ±°λ νΉμ μ΄μνλ₯Ό μ¬μ©νμ¬ μ€λ΄μμ μν λ‘λ΄μ μμΉλ₯Ό νμ
νκ±°λ 거리λ₯Ό κ³μΈ‘νλ μμ
μ μ£Όλ‘ μ¬μ©λμ΄ μλ€. κ·Έλ¬λ μ΄λ¬ν κΈ°μ‘΄μ λ°©λ²λ€μ, μ±λ₯μ΄λ μ νλμ λ¬Έμ λ₯Ό λ λ μ μκΈ°ν νΉμ μ΄μν μ νΈλ₯Ό μμ±νλ Beacon μ μ§μ λ μμΉμ μ€μΉν΄ μ£Όμ΄μΌ νλ€λ μ μμ μ μ½μ΄ μμλ€. κ·Έλ¬λ λ³Έ λ
Όλ¬Έμμ μ μνλ λ°©λ²μ, κΈ°μ‘΄μ κ°μ μ΄λ μ¬λ¬΄μ€, μλΉ, μ μνμ₯ λ±μ νν μ€μΉλμ΄μλ λΌμ°λ μ€νΌμ»€λ₯Ό μ΄μ©ν΄ μ¬μλλ μμ
μμ μκ°λκΈ°ν μ νΈ(Time Synchronization Waveform)λ₯Ό 16kHz μ΄μμ λμμ μλ νμ¬, λͺ¨λ
Έ(Mono) λ§μ΄ν¬λ‘ν° νλλ‘λ μΆκ°μ μΈ μ₯μΉμ μ€μΉ μμ΄ μμ
μ νΈκ° μ€νΌμ»€λ₯Ό ν΅ν΄ μ¬μ λκ³ μλ μν©μμ μμΉνμΈμ ν μ μλ μμ€ν
μ ꡬννκ³ μλ€. μ΄λ¬ν μ μλ λ°©λ²μ μΆκ°μ μΈ Beacon μ μ€μΉ μμ΄ μ λ ΄ν λΉμ©κ³Ό 곡κ°μ μ μ½ μμ΄ μμΉνμΈ μμ€ν
μ ꡬμΆμ΄ νμν μ¬λ¬ μμ©λΆμΌμ μ μ©λ μ μλ€.We here propose a method for localizing mono channel microphones using loudspeakers, with hidden time synchronization waveforms in the audio signal. There are cases where obtaining the location of devices such as gamepads or remote controllers are necessary, in the context of playing video games or tuning home theater systems to optimum conditions. However, due to the high costs of localization sensor devices and the volume of such equipment, manufacturers are reluctant to install localization sensor devices into TVs or loudspeakers in home theater systems. Therefore, we propose using a loudspeaker and a single microphone as communication equipment for the localization of a device. Our proposed system successfully found the location of a device without using any communication devices except a microphone. Also, by modifying Magnitude of the signal in frequency domain, we successfully hid the waveforms used for time synchronization. Thus, users remain unaware of the hidden time synchronization signal while the microphone is detecting the time synchronization waveform. With this hidden signal, we successfully obtained the location of the microphone while playing music with loudspeakers. We anticipate various interesting applications of our proposed technique.Maste
μμ λμΌμ± μ°κ΅¬
νμλ
Όλ¬Έ(μμ¬)--μμΈλνκ΅ λνμ :μ² νκ³Ό μμμ² νμ 곡,2000.Maste
Measurement of Pork Freshness from Near Infrared Spectra Analysis
νμλ
Όλ¬Έ(μμ¬)--μμΈλνκ΅ λνμ :λ°μ΄μ€μμ€ν
Β·μμ¬νλΆ(λ°μ΄μ€μμ€ν
곡ν),2007.νμλ
Όλ¬Έ(μμ¬) -
μΌκ΅΄ μ΄κΈ° ν¨ν°λμμ retinoic acid μ μν μΈν¬ μ΄λκ³Ό μ¦μμ μ‘°μ
Dept. of Medical Science/μμ¬[νκΈ]μΌκ΅΄ λκΈ°μ νμ±κ³Ό ν¨ν°λ λ° κ³¨κ²© νμ± κ³Όμ μλ μλ§μ μ νΈλΆμ, μ μ¬μΈμ, κ·Έλ¦¬κ³ μ±μ₯μΈμλ€μ΄ κ΄μ¬νλ€. Retinoic acid (RA)λ λΉνλ―Ό Aμ νμ± λμ¬ λ¬Όμ§λ‘μ, λ€μν λ°°μ λ°μ κ³Όμ μ μμ©νλ μ€μν μ νΈλΆμμ΄λ€. κ·Έλ¬λ μΌκ΅΄ μ΄κΈ° ν¨ν°λ κ³Όμ μμ μ μ λλμ RAκ° λ΄λΉνλ μν μ λͺ
ννμ§ μλ€. λ°λΌμ λ³Έ μ°κ΅¬μμλ μ λλμ RAκ° μμ
골과 νμ
골μ λ°μμμ μ΄κΈ° ν¨ν°λ μ‘°μ μ κ΄μ¬νλμ§ μμλ³΄κ³ μ νμλ€.Hamberger-Hamilton stage 15 λ λ°°μμ μ 1μΈλκΆμ ν¬μ¬λ μ λλμ RAμ μν΄ νμ
골 κΈΈμ΄λ κ°μλμκ³ νΉν κ·Όμ¬λΆ λκ»κ° κ°μλμλ€. κ·Έλ¦¬κ³ μμ
골 κ·Όμ¬λΆμμ λΌμ μ°κ³¨μ κΈ°ν, λ³μ, κ·Έλ¦¬κ³ λΆλΆμ μΈ μμ€μ΄ λ°μνμλ€.μΌκ΅΄λκΈ° κ·Όμ¬λΆ μΈν¬λ€μ μμ
κ·Όμ¬λΆ, μμ
λκΈ°, νμ
λκΈ°μ maxillomandibular cleft λΆμλ‘ μ’ λ μ΄λνμμ§λ§ RAκ° ν¬μ¬λ νμ
λκΈ°λ‘μ μΈν¬ μ΄λμ μ νλμλ€. κ·Έλ¦¬κ³ maxillomandibular cleft λΆμλΏλ§ μλλΌ μμ
λκΈ°μ νμ
λκΈ°μ κ·Όμ¬λΆμμ μΈν¬ μ¦μμ μ¦κ°κ° κ΄μ°°λμλ€.κ·Έλ¦¬κ³ RA μ νΈκ³, ν¨ν°λ, μΈν¬ μ΄λ λ° μ¦μκ³Ό κ΄λ ¨λ λͺλͺ μ μ μ λ° λ¨λ°±μ§μ λ°ν ν¨ν΄ λ³νκ° κ΄μ°°λμλ€. λνμ μΌλ‘ RarΞ², AP-2μ actin capping proteinμ λ°νμ΄ μ¦κ°λμκ³ Barx1, Dlx5μ tubulin Ξ± chainμ λ°νμ κ°μλμλ€.κ²°λ‘ μ μΌλ‘ RAλ μΈν¬ μ΄λκ³Ό μ¦μμ μ‘°μ νκ³ κ³¨κ²©κ³ νν λ°λ¬μ μ°Έμ¬νμ¬ μΌκ΅΄ μ΄κΈ° ν¨ν°λ κ³Όμ μ μ‘°μ νλ€.
[μλ¬Έ]Many signaling molecules, transcription factors, and growth factors are involved in the formation and patterning of facial prominences as well as of facial structures. Retinoic acid (RA), the active metabolites of vitamin A, is one of essential molecules for the embryogenesis. But it has not been elucidated for its roles in the early facial patterning especially at the endogenous level of concentration. So I wanted to address whether the low concentration of exogenous RA could control the early patterning in maxillaryand mandibular development.Low concentration of exogenous RA in the first pharyngeal arch at H-H stage 15 of chicken embryos caused the shortened and proximally thinned skeletal mandible. And it accompanied the deformation, derangement, and partial loss of bones and cartilages in the proximal part of maxillary regions.The DiI labeled cells showed more proximal cells migrated into the proximal maxilla, maxillary prominence, and maxillomandibular cleft, while being restricted to mandibular prominence. And more cell proliferation was found at proximal maxilla and mandible as well as maxillomandibular cleft without the noticeable changed pattern of cell death.And some of RA signaling, facial patterning, cell migration, and proliferation related genes and proteins showed the different expression pattern. The representative profile included the up-regulated RarΞ², AP-2, and actin capping protein and down-regulated Barx1, Dlx5 and tubulin Ξ± chain.Conclusively endogenous RA is actively involved in the early facial developmental patterning by the regulatory control of cell migration and proliferation and the modulation of facial skeletal patternings.ope