• Title/Summary/Keyword: Transverse

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Advanced Transverse Wave Approach for MM-Wave Analysis of Planar Antennas applied in 5G-Technology

  • Ayari, Mohamed;Touati, Yamen El;Altowaijri, Saleh
    • International Journal of Computer Science & Network Security
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    • v.22 no.1
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    • pp.295-299
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    • 2022
  • In this paper, a fast numerical electromagnetic (EM) method based on the transverse wave formulation called-up Advanced Transverse Wave Approach (A-TWA) is presented. An appropriate 5G antenna is designed, simulated and investigated in the context of Millimeter-Wave Wireless Communication Systems. The obtained simulation results are found in good agreement with literature. Such a method can provide for the simulators a great library integrating the most complexly and sensitively geometry elements that can have a huge impact on the applications supported by new wireless technologies.

Experimental study of bubble flow behavior during flow instability under uniform and non-uniform transverse heat distribution

  • Al-Yahia, Omar S.;Yoon, Ho Joon;Jo, Daeseong
    • Nuclear Engineering and Technology
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    • v.52 no.12
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    • pp.2771-2788
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    • 2020
  • Experiments are conducted to study bubble flow behavior during the instability of subcooled boiling under uniform and non-uniform transverse heating. The non-uniform heat distribution introduces nonuniform bubble generation and condensation rates on the heated surface, which is different from the uniform heating. These bubble generation and condensation characteristics introduce a non-uniform local pressure distribution in the transverse direction, which creates an extra non-uniform pressure on the flowing bubbles. Therefore, different bubble flow behavior can be observed between uniform and non-uniform heating conditions. In the uniform heating, bubble velocity fluctuations are low, and the bubbles travel straight along the axial direction. In the non-uniform heating, more fluctuation in the bubble velocity occurs at low mass flow rate and high subcooled inlet temperatures, and reverse flow is observed. Additionally, the bubbles show a zigzag trajectory when they pass through the channel, which indicates the existence of cross flow in the transverse direction.

Surgery-first Approach for Facial Asymmetry with Transverse Discrepancy Using Hyrax-type Palatal Expansion Appliance

  • Youn-Kyung Choi;Sung-Hun Kim;Yong-Il Kim
    • Journal of Korean Dental Science
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    • v.16 no.1
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    • pp.87-98
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    • 2023
  • This report presents a case of successful treatment of skeletal Class III malocclusion with transverse discrepancy in adult by surgery-first approach. Traditionally dental decompensation is necessary prior to surgery in 2-jaw surgery to correct transverse and rotational discrepancy. However, the hyrax-type palatal expansion appliance was used to improve maxillary expansion accuracy and postoperative stability in this surgery-first approach (segmental Le Fort I osteotomy and mandibular setback surgery). It was established to be an effective means of precisely predicting postoperative occlusion and achieving stable retention after surgery of skeletal Class III malocclusion with maxillary transverse discrepancy.

Study on the Analysis Error by Transverse Edge Effect of Flat Type Linear Induction Motor

  • Lee, Sung Gu;Ryu, Pum-Mo
    • Journal of Advanced Information Technology and Convergence
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    • v.9 no.2
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    • pp.107-113
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    • 2019
  • In this study, we examined the feasibility of considering the transverse edge effect of flat type linear induction motor as 2D finite element analysis (FEA) by changing the resistivity of secondary conductor. For this purpose, the 3D FEA analysis results were compared with the 2D FEA analysis results with the change of the resistivity of the secondary conductors. As a result, simply changing the resistivity could not accurately account for the transverse edge effect of LIM because of leakage components that could not be considered by 2D FEA.