• Title/Summary/Keyword: Anomalous band

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Two chambered right ventricle with anomalous trabecular hypertrophy (이강 우심실 1례 보고)

  • Gwak, Mun-Seop;Lee, Hong-Gyun
    • Journal of Chest Surgery
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    • v.16 no.1
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    • pp.34-39
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    • 1983
  • The syndrome of anomalous muscle bundle dividing the right ventricle into two pressure chambers has been described by many authors. The malformation should not be confused with tetralogy of Fallot itself because the obstructive hypertrophic bands are usually proximal to the right ventricular infundibulum. One case [11 years old male] of double chambered right ventricle due to aberrant muscle bundle with intact ventricular septum is presented. The pressure gradient was 68 mmHg between inflow and outflow tracts of right ventricle on cardiac catheterization. On opening the right ventricle, there noted stenosis of outflow tract by infundibular membrane, hypertrophied anomalous muscle bundle, thickened moderator band & hypertrophied anterior papillary muscle. Open heart surgery was carried out with the aid of extracorporeal support, Anomalous muscle bundle [1.0 cm x 4.0 cm] and infundibular membrane were resected safely. The hypertrophied moderator band was cut at mid-portion and anterior papillary muscle was split vertically. The postoperative course was uneventful and discharged in good condition 2 weeks later.

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Small bowel obstruction caused by an anomalous congenital band in an infant (신생아에서 발생한 선천성 밴드에 의한 장폐색증 1예)

  • Sung, Tae-Jung;Cho, Ji-Woong
    • Clinical and Experimental Pediatrics
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    • v.51 no.2
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    • pp.219-221
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    • 2008
  • Intestinal obstruction is not uncommon in infants. The common causes of intestinal obstruction in the neonatal period are Hirschsprung disease, intestinal atresia, meconium ileus, and intussusception. However, small bowel obstruction caused by a congenital band is very rare. We report a 27-day-old baby who was admitted with abdominal distension and fever. The abdominal X-ray revealed massive bowel dilatation and the contrast gastrografin enema suggested a distal small bowel obstruction. The explolaparotomy showed small bowel entrapment due to an unusual anomalous congenital band.

Symptomatic Abnormal Insertion of the Anterior Horn of Medial Meniscus - A Case Report - (증상을 유발하는 내측 반월상 연골 전각부의 비정상적 삽입 - 1예 보고 -)

  • Yoo, Jae-Doo;Shin, Sang-Jin;Kim, Tae-Ho
    • Journal of the Korean Arthroscopy Society
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    • v.11 no.1
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    • pp.45-49
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    • 2007
  • We report a case of a girl with a symptomatic anomaly of medial meniscus. The complaint of the patient was pain and snapping of the knee. The anterior horn of medial meniscus has anomalous insertion which was extended to the intercondylar notch of the femur on the surface of the anterior cruciate ligament, it attached to lateral wall of medial femoral condyle. This anomalous band was not detected in MRI of knee but found during the operation. After resection of anomalous band, the symptoms completely disappeared.

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Abnormal insertion of the anterior horn of medial meniscus to misdiagnosis to horizontal tear - A case report - (횡 파열로 오인하게 하는 내측 반월상 연골 전각부의 비정상적 삽입 - 증례 보고 -)

  • Kim, Dong-Hee;Gwark, Ji-Yong;Park, Jin-Seung;Hwang, Sun-Chul
    • Journal of Korean Orthopaedic Sports Medicine
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    • v.10 no.2
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    • pp.124-128
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    • 2011
  • Many types of meniscal anomalies have been reported. The authors encountered one case of anomalous insertion of the anterior horn of the medial meniscus to the anterior horn of the lateral meniscus, which ran up along the course of the transverse ligament. This anomalous band was detected in MRI of the knee as a horizontal tear of anterior horn of the lateral meniscus but found during the operation as a anomalous insertion of the anterior horn of the medial meniscus. We report the case with a review of the literature.

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Proposal of Hostile Command Attack Method Using Audible Frequency Band for Smart Speaker (스마트 스피커 대상 가청 주파수 대역을 활용한 적대적 명령어 공격 방법 제안)

  • Park, Tae-jun;Moon, Jongsub
    • Journal of Internet Computing and Services
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    • v.23 no.4
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    • pp.1-9
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    • 2022
  • Recently, the functions of smart speakers have diversified, and the penetration rate of smart speakers is increasing. As it becomes more widespread, various techniques have been proposed to cause anomalous behavior against smart speakers. Dolphin Attack, which causes anomalous behavior against the Voice Controllable System (VCS) during various attacks, is a representative method. With this method, a third party controls VCS using ultrasonic band (f>20kHz) without the user's recognition. However, since the method uses the ultrasonic band, it is necessary to install an ultrasonic speaker or an ultrasonic dedicated device which is capable of outputting an ultrasonic signal. In this paper, a smart speaker is controlled by generating an audio signal modulated at a frequency (18 to 20) which is difficult for a person to hear although it is in the human audible frequency band without installing an additional device, that is, an ultrasonic device. As a result with the method proposed in this paper, while humans could not recognize voice commands even in the audible band, it was possible to control the smart speaker with a probability of 82 to 96%.

Calculation of band structures and dispersion surfaces in two-dimensional photonic crystals using the FDTD method (FDTD 방법을 이용한 2차원 황자 크리스탈의 밴드 구조와 분산 곡선의 계산)

  • 홍수완;김창모;정교방
    • Korean Journal of Optics and Photonics
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    • v.12 no.6
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    • pp.479-484
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    • 2001
  • The analysis of photonic band gaps and anomalous dispersion phenomena in photonic crystals requires understanding of band structures and dispersion surfaces. We show the results of the calculation of band structures and dispersion surfaces for a few two- dimensional lattices, using the finite-difference time-domain method with periodic boundary conditions. In addition, localized defect modes the exist within the band gap are computed by the same method.

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Removal of Super-Refraction Echoes using X-band Dual-Polarization Radar Parameters (X-밴드 이중편파 레이더 변수를 이용한 과대굴절에코 제거)

  • Seo, Eun-Kyoung;Kim, Dong Young
    • Journal of the Korean earth science society
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    • v.40 no.1
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    • pp.9-23
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    • 2019
  • Super-refraction of radar beams tends to occur primarily under a particular vertical structure of temperature and water vapor pressure profiles. A quality control process for the removal of anomalous propagation (AP) ehcoes are required because APs are easily misidentified as precipitation echoes. For this purpose, we collected X-band polarimetric radar parameters (differential reflectivity, cross-correlation coefficient, and differential phase) only including non-precipitation echoes (super-refraction and clear-sky ground echoes) and precipitation echoes, and compared the echo types regarding the relationships among radar reflectivities, polarimetric parameters, and the membership functions. We developed a removal algorithm for the non-precipitation echoes using the texture approach for the polarimetric parameters. The presented algorithm is qualitatively validated using the S-band Jindo radar in Jeollanam-do. Our algorithm shows the successful identification and removal of AP echoes.

Phenomenological Theory of Superconductivity and Magnetism in Ho$_{1-x}Dy_xNi_2B_2C$

  • Doh, Hyeon-Jin;Sigrist, Manfred;Cho, B.K.;Lee, Sung-Ik
    • 한국초전도학회:학술대회논문집
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    • v.9
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    • pp.196-199
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    • 1999
  • The coexistence of the superconductivity and magnetism in the Ho1-xDyxNi2B2C is studied by using Ginzburg-Landau theory. This material violates the standard do Gennes scaling showing the coexistence and complex interplay of superconducting and magnetic order yielding an anomalous phase diagram. We propose a phenomenological model which includes two magnetic and two superconducting order parameters accounting for the multi-band structure of this material. We describe the magnetic fluctuations and order and demonstrate that they lead to anomalous behavior of the upper critical field. The doping dependence of Tc in Ho1-xDyxNi2B2C showing a reentrance behavior are analyzed yielding a very good agreement with experimental data.

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Optical Properties of Photoferroelectric Semiconductors V. (Photoferroelectric 반도체의 광학적 특성 연구 V.)

  • 김화택;윤상현;현승철;김미양;김용근;김형곤;최성휴;윤창선;정해문
    • Journal of the Korean Vacuum Society
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    • v.3 no.1
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    • pp.130-137
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    • 1994
  • SbSBr, BiSBr, SbSBr : Co, BiSBr : Co, SbSBr : Ni 및 BiSBr : Ni 단결정을 수직 Bridgman 방법으로 성장시켰다. 성장된 단결정의 구조는 orthorhombic 구조이며 광학적 energy band gap 구조는 간접적이형이었고 energy gap의 온도의존성은 일차 및 이차 상전이점에서 anomalous 한 특성이 나 타 났다. 불순물로 첨가한 cobalt와 nickel은 Td 대칭점에 Co2+ ion, Co3+ ion 및 Ni2+ ion으로 위치하며 이들 ion의 energy 준위간의 전자전이에 의하여 불순물 광흡수 peak들이 나타난다.

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Analysis of Fourier Transform Jet Emission Spectra of CN $(B^{2}{\Sigma}^+{\rightarrow}X^{2}{\Sigma}^+)$

  • Lee, Sang-Kuk
    • Bulletin of the Korean Chemical Society
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    • v.15 no.5
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    • pp.349-353
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    • 1994
  • The CN radical was generated in a jet with an inert buffer gas, helium from high voltage dc discharge of the precursor $CH_3CN$. The Fourier transform emission spectra of the O-O band of the $(B^2{\Sigma}^+{\to}X^2{\Sigma}^+)$ transition of CN have been obtained with a Bruker IFS-120HR spectrometer. The spectra show an anomalous distribution of rotational intensity which cannot be explained by a simple Boltzmann distribution. The analysis of the transition frequencies provides molecular constants with high accuracy for both the ground and the excited electronic states of the CN radical.