• Title/Summary/Keyword: 무지

Search Result 619, Processing Time 0.022 seconds

HIV감염경로

  • Korea Alliance to Defeat AIDS
    • RED RIBBON
    • /
    • s.69
    • /
    • pp.8-9
    • /
    • 2006
  • 우리는 흔히 에이즈에 대해 막연한 공포를 가지고 있다. 그 공포는 에이즈에 대한 무지와 편견에서 온 것으로 정확한 정보와 지식을 갖추는 길만이 예방과 전파 방지, 감염인과의 공존의 최선책이 될 것이다. 이번 호에서는 HIV의 여러 가지 전파 경로를 상세히 살펴보고자 한다.

  • PDF

Incidence of Hallux Valgus Interphalangeus in the Normal and Hallux Valgus Feet and its Correlations with Hallux Valgus Angle and Intermetatarsal Angle (정상 족과 무지 외반증에서의 무지 지간 외반증의 발생 빈도와 무지 외반각과 제1-2 중족골간 각과의 연관성에 대한 분석)

  • Kim, You-Jin;Jung, Hong-Geun;Bahng, Seung-Chul
    • Journal of Korean Foot and Ankle Society
    • /
    • v.11 no.1
    • /
    • pp.13-17
    • /
    • 2007
  • Purpose: In order to achieve successful outcome for the hallux valgus surgery, it is mandatory to consider the possible associated hallux valgus interphalangeus, and therefore the hallux interphalangeal angle (HIA) other than hallux valgus angle (HVA) and intermetatarsal angle (IMA) has been well appreciated. The purpose of this study is to evaluate the incidence of hallux interphalangeal angle in the normal and hallux valgus feet and also the statistical correlations of HIA with HVA and IMA in the 2 groups. Materials and Methods: The study is base on the standing foot AP radiographs of the 100 normal feet (HVA<$12^{\circ}$ and $IMA<9^{\circ}$) and 100 hallux valgus feet (HVA>$25^{\circ}$ and IMA>$12^{\circ}$). We measured the hallux valgus angle, intermetatarsal angle and hallux interphalangeal angle, where we defined the hallux valgus interphalangeus when the HIA was more than $10^{\circ}$. We evaluated the incidence of the hallux valgus interphalangeus in the normal and hallux valgus groups and the correlations of the HIA with HVA and IMA. Results: In normal feet group, hallux valgus interphalangeus comprised 82%, while there were only 20% of HVI in hallux valgus group. Among 200 total feet, there was negative correlations between the HVA and HIA as well as IMA and HIA statistically (p<0.01). Conclusion: There was lower incidence of hallux valgus interphalangeus in the hallux valgus group compared to the normal feet group.

  • PDF

A numerical study on evaluation of unsupported pillar strength in the room and pillar method (주방식 공법에서 무지보 암주의 강도 산정에 관한 수치해석적 연구)

  • Lee, Chulho;Chang, Soo-Ho;Shin, Hyu-Soung
    • Journal of Korean Tunnelling and Underground Space Association
    • /
    • v.15 no.4
    • /
    • pp.443-453
    • /
    • 2013
  • This study aims to evaluate the mechanical behaviors of unsupported rock pillars in a room-and-pillar underground structure by a series of numerical analyses. In addition, rock pillar strengths estimated by a few empirical equations proposed for underground mines are compared with those from numerical analyses. Based on the results from the numerical analysis, the ratio of pillar strength to rock mass strength increases as the ratio of the width of a pillar to its height becomes bigger. It means that higher ratio of pillar width to its height is much more favorable for stabilizing a room-and-pillar underground structure. Especially, unsupported pillar strengths estimated from numerical analyses are higher than rock mass strength when the ratio of pillar width to height is approximately over 1.5. It is also found that the choice of an empirical equation appropriate for a given geometric condition of a pillar is important for its feasible application to the stability analysis of a pillar in the room-and-pillar method.

3D Finite Element Analysis of Rock Behavior with Bench Length and Gther Design Parameters of Tunnel (터널의 벤치길이를 중심으로 한 설계변수에 따른 암반거동의 3차원 수치해석)

  • 강준호;정직한;이정인
    • Tunnel and Underground Space
    • /
    • v.11 no.1
    • /
    • pp.30-35
    • /
    • 2001
  • Focusing on the bench length, this paper presents the results of 3-dimensional elafto-plastic FE Analysis un tunnels of full face, mini-bench and short bench excavated in weathered rock. Influences of unsupported span, horizontal to vertical stress ratio, thickness of shotcrete on the behavior of rock and support were a1so studied. Results showed that displacements of mini-bench tunnels responded more sensitively to bench lengths than those of short bench. The effects of bench excavation on upper half displacement increased with longer unsupported span. Horizontal to vertical stress ratio showed a greater influence on displacement and preceding displacement ratio or sidewall rather than those of crown and invert.

  • PDF

Loose Body in the Interphalangeal Joint of the Big Toe (무지 지절에 발생한 관절내 유리체 - 증례보고 -)

  • Bae, Woo-Han;Moon, Jeong-Seok;Lee, Woo-Chun
    • The Journal of Korean Orthopaedic Ultrasound Society
    • /
    • v.2 no.1
    • /
    • pp.24-26
    • /
    • 2009
  • A 20-year-old patient who got injured on his right big toe and complained pain visited to our hospital 9 months ago. Before the patient transferred to our hospital, plain radiographs were obtained at a private hospital and the patient underwent conservative treatment with uncertain diagnosis. However, the symptom was not improved, and he continued to complain intra-articular pain on his interphalangeal joint of big toe during plantarflexion or dorsiflexion. On plain radiographs of our hospital, we observed small bone fragment in his interphalangeal joint of the big toe. On the ultrasonographic images, two loose bodies in the interphalangeal joint were found. Then, we removed the loose bodies as surgical treatment, and the symptom was subsided completely. The purpose of this study is to report the ultrasonographic finding of the loose bodies of interphalangeal joint of the big toe.

  • PDF

Ecological Characteristics of Protaetia orientalis submarmorea (Burmeister) (Coleoptera: Cetoniidae) (점박이꽃무지의 발생 및 생육특성에 관한 연구)

  • 김철학;이준석;고민수;박규택
    • Korean journal of applied entomology
    • /
    • v.41 no.1
    • /
    • pp.43-47
    • /
    • 2002
  • This study was carried out to investigate the ecological characteristics of Protaetia orientalis submarmorea (Burmeister). The emergence period of adults is appeared from April to October, and most abundant in July∼August, once a year in the field. Hibernation took place mostly in larval stage, but some in adult stage, and were generally found in the decayed rice straws and in the soil covered with compost or similar materials with average depth of 17.6 cm The developmental characteristics in the insectary (28$^{\circ}C$, 70% RH, 16L: 8D) was investigated: the average number of eggs laid per female is 82.8, egg period 8.4 days, 1st instars of larva 10.6, 2nd 18.7, 3rd 38.1, and pupal period 35.5 days. Longevity of the adult was 135.2 days In the female and 121. 7days in the male.

Survey on the Insect Smart Farm Breeding Farm (곤충 스마트팜 사육농가 실태조사)

  • Kwak, Kang-Su;Rho, Si-Young;Won, Jin-Ho;Kim, Tae-Hyun;Baek, Jeong-Hyun;Lee, Sang-Gyu;Lee, Jae-Su;Seok, Young-Seek;Choi, In-Chan
    • Proceedings of the Korean Society of Computer Information Conference
    • /
    • 2020.07a
    • /
    • pp.577-578
    • /
    • 2020
  • 본 연구의 목적은 흰점박이꽃무지 사육농가 및 사육환경에 대해 일반농가의 실태를 조사·분석하여 식용곤충 사육시설에 대한 기초 연구자료를 수집하기 위한 것이다. 전국에 곤충사육 농가로 등록한 업체 중에서 흰점박이꽃무지를 사육하는 농가 17농가를 대상으로 설문조사를 실시하여 농장운영 및 시설·장치 현황 등을 조사하였으며, 주요 결과는 다음과 같다. 일반적으로 곤충사육 농가는 대부분 농가형으로 운영되고 있지만, 생산업, 유통업 및 가공업 등으로 신고하여 곤충사육 농가에서 직접 생산, 가공 및 제품 개발 등을 하고 있는 것으로 나타났다. 그리고 대부분의 곤충사육 농가는 판넬 형식의 건축물 내에서 냉·난방기를 가동하여 곤충의 생육환경을 조성하고 있으며, 필요에 따라 IoT 기반의 사양관리 장치 및 운영관리 시스템을 활용하고 있는 것으로 파악되었는데, 식용곤충 대량생산을 위한 사양관리 장치 및 생산 기반시설 구축은 여전히 부족한 상황으로 개선이 필요해 보인다.

  • PDF