• Title/Summary/Keyword: Oblique

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Tessier No. 2 Oblique Facial Cleft Not Associated with Cleft Lip or Palate: a Case Report (구순구개열과 관련되지 않은 Tessier 분류 2 안면열의 교정: 증례보고)

  • Park, Yong-Tae;Kye, Jun-Young;Kim, Seong-Gon;Kwon, Kwang-Jun;Park, Young-Wook
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.32 no.6
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    • pp.600-603
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    • 2010
  • Oblique facial cleft is extremely rare. The frequency was reported 1/1300 cases of facial cleft. The cleft appears to be bilateral in approximately 20% and more often on the right when unilateral. Oblique facial cleft is nearly always associated with cleft lip and palate. Thus, the case that is unilateral on the left and not associated with cleft lip or palate is very rare. We experienced a case of 2 years 6 months old Philippine girl who had oblique facial cleft that is not associated with cleft lip or palate. The probable cause and treatment is discussed with a review of literatures.

A Study on the cutting forces prediction using machining theory in end milling (절삭이론을 이용한 엔드밀 가공에서의 절삭력 예측에 관한 연구)

  • Jung, Sung-Chan;Kim, Kug-Weon
    • Proceedings of the KSME Conference
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    • 2004.11a
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    • pp.928-933
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    • 2004
  • A new approach for modelling and simulation of the cutting forces in end milling processes is presented. In this approach, the cutting forces in end milling are modelled based on a predictive machining theory, in which the machining characteristic factors are predicted from input data of fundamental workpiece material properties, tool geometry and cutting conditions. In the model, each tooth of a end milling cutter is divided into a number of slices along the cutter axis. The cutting action of each of the slices is modelled as an oblique cutting process. For the first slice of each tooth, it is modelled as oblique cutting with end cutting edge effect, whereas the cutting actions of other slices are modelled as oblique cutting without end cutting edge effect. The cutting forces in the oblique cutting processes are predicted using a predictive machining theory. The total cutting forces acting on the cutter is obtained as the sum of the forces at all the cutting slices of all the teeth. A Windows-based simulation system for the cutting forces in end milling is developed using the model. Experimental milling tests have been conducted to verify the simulation system.

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Comparison of the Abdominal Muscle Thickness and Activity by Using Tool and Unstable Surface which is Accompanied Bridge Exercise Doing Abdominal Drawing-in Breath (불안정 지지면에서 복부 드로잉-인 호흡을 동반한 교각운동 시 사용도구에 따른 복부 근육 두께 및 활성도 비교)

  • Kim, Hyeonsu;Bae, Wonsik;Lee, Keoncheol
    • Journal of The Korean Society of Integrative Medicine
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    • v.5 no.1
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    • pp.25-34
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    • 2017
  • Purpose : The purpose of this study was to identify comparison of the abdominal muscle thickness and activity by using tool and unstable surface which is accompanied bridge exercise doing abdominal drawing-in breath. Method : This study was performed on normal 13 males and 17 females subjects doing bridge exercise accompanied abdominal drawing-in breath used tools. At this time muscle thickness and muscle activity is measured through ultrasound and EMG. Result : The results of this study, rectus abdominis, internal oblique and transverse abdominis showed a significant difference in muscle thickness when performed using pilates circle. And external oblique showed a significant difference muscle thickness when performed using gym ball. Rectus abdominis and external oblique showed a significant difference in muscle activity when performed using pilates circle. And internal oblique showed a significant difference in muscle activity when performed using sling. Conclusion : Therefore it is suggested that it would be effective to apply the gymball and pilates circle in the unstable surface for abdominal weakness.

Development of the Altari Radish Pre-Processing System for Kimch Production (I) - Leaf and root tail cutting equipment - (김치생산용 알타리무 전처리 가공시스템 개발(I) - 무청·뿌리끝부 절단장치 -)

  • Min Y.B.;Kim S.T.;Kang D.H.;Chung T.S.;La W.J.
    • Journal of Biosystems Engineering
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    • v.29 no.5 s.106
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    • pp.451-456
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    • 2004
  • To establish a Altari radish pre-processing system far kimchi, the leaves and root tail of the Altari radish cutting de-vices were developed. The cutting resistances depend on the edge angles, oblique angles and cutting speeds were measured and analyzed. The experiments were performed to reveal the optimal conditions that showed the minimum cutting resistances acting on the materials. As the results, the optimum conditions that acting on the leaves were at edge angle $25^{\circ}$, oblique angle $40^{\circ}$ and cutting speed 0.5 m/s, and those acting on the root tails were at edge angle $20^{\circ}$, oblique angle $30^{\circ}$ and cutting speed 0.5 m/s, respectively. Considered a safety conception, the oblique angle of the leaves cutting device was adjusted as $20^{\circ}$, and then the cutting efficiencies of the both devices at these conditions were showed perfect performances.

The Effects of Pilates based Breathing on Changes in the Thicknesses of the Abdominal Muscles

  • Kwon, Hae-Yeon;Moon, Hyun-Ju;Kim, Moon-Jeoung
    • Journal of the Korean Society of Physical Medicine
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    • v.11 no.3
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    • pp.59-63
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    • 2016
  • PURPOSE: The purpose of the present study is to examine the effects of sole Pilates based breathing on the thicknesses of the abdominal muscles. METHODS: Twenty adults aged in their 20-30s were randomly selected. The selection criteria were those who had no medical history of pain due to musculoskeletal system, neurologic, or orthopedic diseases within six months before the selection. The thicknesses of the abdominal muscles (the transversus abdominis muscle, internal oblique abdominal muscle, and external oblique abdominal muscle) of the subjects were measured using ultrasonography before and after Pilates breathing. The study was approved by the research ethics committee of the Catholic University of Pusan. RESULTS: After Pilates based breathing, the thicknesses of the transversus abdominis muscle, the internal oblique abdominal muscle, and the external oblique abdominal muscle increased significantly. In particular, the thickness increase rate of the transversus abdominis muscle was shown to be the highest. CONCLUSION: Sole Pilates based breathing is expected to be effective for the improvement of trunk stability through strengthening of abdominal muscles, because it induces the coordinated contraction of the transversus abdominis muscle and other abdominal muscle. It will be need the Longitudinal study for identify to long term effects of Pilates based breathing.

Influence of Multi-directional Dynamic Stabilization Exercise on Thickness of Abdominal Muscles

  • Yu, Jae-Young;Park, Jea-Cheol;Jeong, Jin-Gyu
    • The Journal of Korean Physical Therapy
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    • v.28 no.4
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    • pp.249-253
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    • 2016
  • Purpose: The purpose of this study was to examine the influence of multi-directional dynamic stabilization exercise on the thickness of the external oblique abdominis, internal oblique abdominis, and transversus abdominis. Methods: For the study subjects, 40 adults were taken and divided into two groups and stabilization exercise was performed for 6 weeks. Changes in muscle thickness during the pre-experimental period, and at 2 weeks, 4 weeks, and 6 weeks were analyzed using repeated ANOVA. Results: The thickness of the external oblique abdominis, internal oblique abdominis, and transversus abdominis in the multi-directional dynamic stabilization exercise group showed significant differences per period and an interaction was observed between period and group (p<0.01), while there were no significant differences in changes per group (p>0.05). Conclusion: The effects of multi-directional stabilization exercises on abdominal muscle thickness differed. The results presented herein can be utilized as basic data for future studies and in development of rehabilitation treatments.

Counterbalance applied to the Dynamics of Daniel Libeskind's Architecture - Focused on Libeskind Museums - (다니엘 리베스킨트 건축의 역동성에 적용된 상대적 균형감 - 뮤지엄 건축을 중심으로 -)

  • Lee, Da-Kyoung;Cho, Ja-Yeon
    • Korean Institute of Interior Design Journal
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    • v.24 no.1
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    • pp.64-71
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    • 2015
  • This study aims to disclose the dynamics of Daniel Libeskind Museums by the principles of counterbalance. Balance as a dynamic concept is the settlement of instability and tension and to draw overall sense of balance by controlling new perception elements that may cope with the unbalance elements. This is based on balancing compensation and can be explained as a counterbalance. Daniel Libeskind, a representative architect of deconstructivism, creates dynamic space by using oblique lines on the plane. The study was carried out under the assumption that this space would be designed under the certain principles rather than the result of momentary feelings and the analysis was conducted by the counterpoint of music and counterbalance. As a result, Daniel Libeskind balances in a way of forming the mutual right angle by using oblique lines which cancel out the unbalance in plane composition or making the same angle based on vertical / horizontal axis. Counterbalance has been achieved in the section and elevation as well as plane and complex and diverse oblique lines were worked under the constant principle not accidental results. The axes of Daniel Libeskind's architecture have been known to follow contextualism with symbolism and historicity but it was found that a design technique considering counterbalance was used in the overall control.

Pretilt Angle Generation and EO Performance in LC Cell with Linearly Polarized UV Light Irradiation on Polymer Surface (폴리이미드막 표면에 직선 편광된 UV 광을 조사한 액정셀에서의 프리틸트각 발생과 전기광학특성)

  • Lee, Chang-Hoon;Lee, Jeong-Ho;Seo, Dae-Shik
    • Proceedings of the KIEE Conference
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    • 1998.07d
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    • pp.1261-1263
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    • 1998
  • In this paper, we obtained that the monodomain alignment of nematic liquid crystal (NLC) increases with increasing irradiation time with linearly polarized ultraviolet (LPUV) light irradiation on polyimide (PI) surfaces. It was found that the monodomain alignment of NLC is obtained in a cell with normally LPUV light irradiated on PI surface at 30 min. and then oblique LPUV is secondly irradiated on PI surfaces rotated by $90^{\circ}$. The pretilt angle of NLC is generated about $2.5^{\circ}$ with oblique angle of $60^{\circ}$ and then decreased with increasing the oblique angle of IN light irradiation. It is considered that the pretilt angle of NLC is attributed to the photo-depolymerization of polymer with the oblique angle of UV light. The voltage-transmittance and response time characteristics of photo-aligned twisted nematic (TN)-LCD with UV light irradiation time of 60 min. were almost same in comparison with rubbing treated TN-LCD.

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On Generation Methods of Oblique Incidence Waves in Three-Dimensional Numerical Wave Tank with Non-Reflected System (3차원 무반사 수치파동수조에서 경사입사파의 조파기법 개발)

  • Hur, Dong-Soo;Lee, Woo-Dong
    • Journal of Korean Society of Coastal and Ocean Engineers
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    • v.23 no.6
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    • pp.401-406
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    • 2011
  • In this study, generation methods of oblique incident wave are newly proposed and examined using the fully non-linear numerical model with non-reflected wave generation system(LES-WASS-3D). In order to verify, free surface elevation and horizontal velocities are compared with $3^{rd}$ -order Stokes wave theory in 3-D oblique incident wave field. As a results, it is revealed that the numerical results by newly proposed technique are in good agreement with the theory.

Effects of the Support Surface Condition on Muscle Activity of Trunk Muscles during Balance Exercises in Patients with Stroke

  • Jung, Kyoung-Sim;Kim, Yong-Su;In, Tae-Sung
    • The Journal of Korean Physical Therapy
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    • v.27 no.4
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    • pp.196-200
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    • 2015
  • Purpose: The purpose of this study was to examine the muscle activity of the trunk muscles during balance exercises on a stable and unstable surface in patients with stroke. Methods: Thirteen subjects (8 males, 5 females) with stroke were enrolled in the study. Muscle activity was recorded using surface EMG electrodes from the affected side of the erector spinae, external oblique, and internal oblique muscles. The exercise was performed under three conditions. For the first condition for balance exercise, subjects were instructed to sit on an exercise mat with legs extended. The second condition was to sit with legs extended, with a balance pad under their buttocks. The third condition was to sit with legs extended, have a balance pad under the buttocks and a balance cushion under the lower legs. Results: This study showed significant differences in EMG activities during both arm lifting exercise and weight shifting exercise between conditions. This study showed that the EMG activities of the erector spinae, external oblique, and internal oblique muscles were significantly higher when the trunk exercise was performed using the balance pad with balance ball than when using the stable surface. Conclusion: In conclusion, performing balance exercises using an unstable surface is a useful method for facilitating trunk-muscle strength and hence trunk stability.