• Title/Summary/Keyword: Segmental

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Laparoscopic-Assisted Transanal Endorectal Pull-Through for Segmental Dilatation of Rectosigmoid Colon in a Child (소아에서 발생한 직장구불결장의 분절확장에 대한 Laparoscopic-Assisted Transanal Endorectal Pull-Through 술식)

  • Park, Ji Young;Park, Jinyoung
    • Advances in pediatric surgery
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    • v.19 no.2
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    • pp.156-161
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    • 2013
  • Congenital segmental dilatation of the colon is a very rare entity of unknown etiology, characterized by a localized dilatation of a bowel segment of the colon of variable length and an abrupt transition between the normal and dilated intestine. It can affect any part of the colon, with the rectosigmoid colon being the most commonly affected site. The clinical and radiological features may resemble that of Hirschsprung disease, but differ in that the normal ganglion cells are found in the dilated and normal segment of the colon. We performed laparoscopic-assisted transanal endorectal pull-through for segmental dilatation of rectosigmoid colon in an 8-year-old boy with chronic constipation since the age of 5 months.

Analytical Study on Precast Segmental Prestressed Concrete Bridge Piers (조립식 프리스트레스트 콘크리트 교각에 관한 해석적 연구)

  • Kim, Tae-Hoon;Jin, Byeong-Moo;Kim, Young-Jin;Shin, Hyun-Mock
    • Proceedings of the Korea Concrete Institute Conference
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    • 2006.05a
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    • pp.178-181
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    • 2006
  • The purpose of this study is to investigate the inelastic behavior of precast segmental prestressed concrete bridge piers. A computer program, named RCAHEST (Reinforced Concrete Analysis in Higher Evaluation System Technology), for the analysis of reinforced concrete structures was used. Material nonlinearity is taken into account by comprising tensile, compressive and shear models of cracked concrete and a model of reinforcing steel. An unbonded tendon element based on the finite element method, that can represent the interaction between tendon and concrete of prestressed concrete member, is used. A joint element is newly developed to predict the inelastic behaviors of segmental joints. The proposed numerical method for the inelastic behavior of precast segmental prestressed concrete bridge piers is verified by comparison with reliable experimental results.

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Ortho-phonic Alphabet Creation by the Musical Theory and its Segmental Algorithm (악리론으로 본 정음창제와 정음소 분절 알고리즘)

  • Chin, Yong-Ohk;Ahn, Cheong-Keung
    • Speech Sciences
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    • v.8 no.2
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    • pp.49-59
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    • 2001
  • The phoneme segmentation is a very difficult problem in speech sound processing because it has found out segmental algorithm in many kinds of allophone and coarticulation's trees. Thus system configuration for the speech recognition and voice retrieval processing has a complex system structure. To solve it, we discuss a possibility of new segmental algorithm, which is called the minus a thirds one or plus in tripartitioning(삼분손익) of twelve temporament(12 율려), first proposed by Prof. T. S. Han. It is close to oriental and western musical theory. He also has suggested a 3 consonant and 3 vowel phonemes in Hunminjungum(훈민정음) invented by the King Sejong in the 15th century. In this paper, we suggest to newly name it as ortho-phonic phoneme(OPP/정음소), which carries the meaning of 'the absoluteness and independency'. OPP also is acceptable to any other languages, for example IPA. Lastly we know that this algorithm is constantly applicable to the global language and is very useful to construct a voice recognition and retrieval structuring engineering.

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Assessment of Connection Strength and Frictional Characteristic for The Segmental Retaining Wall Unit (보강토 옹벽 전면블록의 연결강도 및 마찰특성 평가)

  • Kim, Jin-Man;Cho, Sam-Deok;Oh, Se-Yong;Lee, Dae-Young
    • Proceedings of the Korean Geotechical Society Conference
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    • 2005.03a
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    • pp.1562-1571
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    • 2005
  • The use of geogrid for SRW systems and bridge abutment has increased rapidly over the past 10 years in Korea. The concept of segmental retaining walls and reinforced soil is very old and for example The Ziggurats of Babylonia(i.e. Tower of Babel) were built some 2,500 to 3,000 years ago using soil reinforcing methods very similar to those described in current design. Modern SRW(Semental Retaining Wall) units were introduced in 1960's as concrete crib retaining wall systems. In this paper, the friction properties between segmental concrete units and geogrid are investigated by performing various tests.

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Numerical investigation of segmental tunnel linings-comparison between the hyperstatic reaction method and a 3D numerical model

  • Do, Ngoc Anh;Dias, Daniel;Oreste, Pierpaolo
    • Geomechanics and Engineering
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    • v.14 no.3
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    • pp.293-299
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    • 2018
  • This paper has the aim of estimating the applicability of a numerical approach to the Hyperstatic Reaction Method (HRM) for the analysis of segmental tunnel linings. For this purpose, a simplified three-dimensional (3D) numerical model, using the $FLAC^{3D}$ finite difference software, has been developed, which allows analysing in a rigorous way the effect of the lining segmentation on the overall behaviour of the lining. Comparisons between the results obtained with the HRM and those determined by means of the simplified 3D numerical model show that the proposed HRM method can be used to investigate the behaviour of a segmental tunnel lining.

Spinal segmental myoclonus improved with epidural blockade in a patient with herpes zoster radiculitis

  • Han, Su-Hyun;Jeong, Hae-Bong;Yoo, Il-Han;Ahn, Suk-Won
    • Annals of Clinical Neurophysiology
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    • v.19 no.1
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    • pp.71-73
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    • 2017
  • The spinal segmental myoclonus by viral radiculitis has been rarely reported and the pathophysiology remains to be elucidated. However, the hyperactivity of contiguous anterior horn neurons induced by viral irritation has been suggested to be a possible patho-mechanism. In general, spinal segmental myoclonus is not well-controlled by medication and the patient suffers from continuous involuntary movement. We recently experienced a case of spinal segmental myoclonus induced by herpes zoster radiculitis, and which was successfully relieved by epidural injections.

A study on relearning program of deep stabilizing muscle for low back pain (요통에 적용된 심부 안정근 재교육 프로그램에 관한 연구)

  • Koo, Hee-Seo;Kim, Soon-Ja
    • The Journal of Korean Physical Therapy
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    • v.16 no.4
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    • pp.11-22
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    • 2004
  • The concept of segmental stabilization has been one of the most exciting advancements in the field of physical therapy. Specific deep stabilizing muscle have proven to reverse motor control deficits that occurs after back injury. After an injury, a new motor programming strategy is adopted and there is excessive recruitment of the large , strong , global muscular system works instead of small segmental deep muscle recruitment for stability. Many physical therapists and doctors mistakenly prescribe therapeutic exercise for low back pain to use larger, superficial musculature to strengthen the spine for stability and pain control. But motor control coordination of local segmental muscle is actually the key to stability and pain control, not strengthening of global muscle. A recent focus in physiotherapy management of patients with chronic back pain has been the specific training of muscles surrounding the lumbar spine whose primary role is considered to be the provision of dynamic stability and segmental control to the spine. These are the deep transverse abdominis muscle and lumbar multifudus.

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Damage Assessment of a Post-Tensioned Segmental Concrete Bridge Using Modal Testing Data (모달시험을 통한 Post-Tensioned Segmental 콘크리트 교량의 손상평가)

  • Heo, Gwanghee;Choi, Man-Yong;Wang, M.L.
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.3 no.4
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    • pp.205-214
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    • 1999
  • 구조물의 동특성(고유진동수, 감쇠, 모드형상 등)의 변화는 구조물의 안전도를 평가할 수 있는 한 방법이다. 본 연구에서 콘크리트 세그먼트의 웨브 부분에 상당히 많은 균열이 진전되고 있는 상태의 Post-Tensioned Segmental 콘크리트 교량의 안전도 평가를 시도하였다. 안전도 평가를 위한 근간 데이터로 1986년 측정했던 데이터와 2차원 유한요소해석에서 얻은 결과값을 사용했다. 손상의 정도와 손상의 위치를 보다 정확히 찾아내기 위한 기술 중의 한 방법으로 Modal Test를 이용하였다. 이 방법이 Post-Tensioned Segmental 콘크리트 교량에 적용되어 교량의 안전도를 분석 평가하였다.

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Proof Load Test and Integrity Assessment of Segmental PC Box-girder Bridges (Segmental PC 박스거더교의 검증재하시험 및 건전성평가)

  • 조효남;임종권;옥승범;지광습
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 1995.10a
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    • pp.132-141
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    • 1995
  • This study is intended to propose practical but systematic and rational approaches for proof load test and integrity assessment of segmental PC box-girder bridges. The proposed models cover the whole range of field tests and assessment of such as inspections, nondestructive tests, static and dynamic load tests, structural analysis, and integrity assessment for the evaluation of load carrying capacity, serviceability, and durability of PC box-girder bridges. They are applied to a newly constructed precast segmental PC box-girder bridge which is a part of the Seoul interior circuit elevated expressway.

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SOFT HARD TISSUE CHANGES FOLLOWING ANTERIOR SEGMENTAL SURGERY IN BIMAXILLARY PROTRUSION (상하악 치조전돌증의 양악 분절골절단 수술후 경, 연조직 변화에 관한 연구)

  • Song, Jae-Chul;Chin, Byung-Rho
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.19 no.3
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    • pp.250-259
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    • 1997
  • The purpose of this study was to evaluate the interrelationship of the soft and hard tissue changes after both maxillary and mandibular anterior segmental surgery in bimaxillary protrusion patients. 11 patients had received both maxillary and mandibular anterior segmental surgery and were investigated radiologically with lateral cephalogram. The results were as follows : 1. The correlation of maxillary hard and soft tissue horizontal changes were relative high. : Coefficient between UIE and Stms was 0.89 (p<0.001). 2. The correlation of mandibular hard and soft tissue horizontal changes were very high, especially at the chin. : Coefficients were over 0.90 (p<0.001) 3. All points were moved superiorly except SLS, LS, Stms. 4. Upper and lower lip convexity to the E-Line were decreased (p<0.001) and postsurgical facial profiles were changed very esthetically.

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