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근단 변위 판막술을 이용한 매복 상악 중절치의 맹출유도 (ERUPTION GUIDANCE OF IMPACTED MAXILLARY CENTRAL INCISOR WITH APICALLY POSITIONED FLAP)

  • 류현섭;권훈;이창섭;이상호
    • 대한소아치과학회지
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    • 제28권3호
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    • pp.383-390
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    • 2001
  • 상악중절치의 매복은 임상적으로 흔히 볼 수 있다. 대부분의 경우 중절치는 협측에 매복되어 있다. 이러한 협측매복은 치료가 무척 어렵다. 협측매복시 치은퇴축과 부착치은의 상실,치주낭이 발견된다. 따라서 성공적인 치료를 위해서는 외과적 술식을 통해서 부착치은의 소실을 최소화해야 할 것이다. 매복치의 위치와 부착치은의 양에 따라 수술방법으로 간단한 치은절제술(gingivectomy)외에도 필요하면 근단변위판막술(apically positioned flap), 측방변위판막술(laterally positioned flap), 유리치은 이식술(free gingival graft) 등과 같은 여러 판막술과 치아의 생리적인 맹출기전을 복제한 폐쇄 맹출법 (closed eruption technique)을 고려 할 수 있다. 하지만 치은절제술은 근단변위판막술에 비하여 부착치은의 양이 적어 많은 양의 부착치은 이 필요한 경우에는 근단변위판막술이 적응증이며 매복치아가 nasal spine근처에 있을 때는 폐쇄 맹출법을 선택해야 할 것이다. 본 증례에서 두 증례에서는 근단변위 판막술을 한 증례에서는 폐쇄 맹출법을 사용한 바 다음과 같은 결론을 얻었다. 폐쇄 맹출법이 더 심미적이었으나 부착치은의 양은 작았다. 이에 상악 중절치의 매복의 경우에서 올바른 임상적, 방사선학적인 검사를 통해 적응증에 맞는 외과적 수술로써 외과적 견인후 합병증을 최소화할 수 있었다.

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Kill Chain 기반 해상기동부대의 효과적인 해상작전 모델 제안 (Development of Kill Chain Based Effective Maritime Operations Model for Naval Task Forces)

  • 이철화;장동모;이태공;임재성
    • 정보화연구
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    • 제9권2호
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    • pp.177-186
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    • 2012
  • 해군은 다양한 해상작전을 수행하기 위해 해상기동부대(TF)를 구성한다. 해양 환경하에서 해상기동부대(TF)는 대함전(ASUW), 대잠전(ASW), 대공전(AAW), 그리고 상륙돌격 작전 등과 같은 동시 병행적으로 성분작전을 수행한다. TF는 임무완수를 위하여 C4I, 인터넷 음성전화(VOIP) 및 디지털 전보처리체계(DMHS)와 LINK-11, 16, ISDL 등과 같은 전술데이터링크를 갖춘 많은 전술체계들을 구성하고 있다. TF가 수명한 임무를 완수하기 위해 해상작전을 수행할 때, TF의 작전절차에 관심을 갖게 되었다. 작전절차는 적을 격파하기 위한 해상작전 수행을 위한 표준절차이다. 각 함정은 '어떻게 싸울 것인가'에 대한 매뉴얼에 교전절차는 갖고 있지만, 현재 TF의 상세한 작전절차는 미흡하다. 따라서, 본 논문에서 우리는 효과적인 해상작전 수행에 필요한 작전절차를 제안한다. 그런 작전절차 환경에서 TF의 작전 효과성은 전술데이터링크 운영의 작전 시나리오를 통해 결정하고자 한다. 전술데이터링크를 적용한 해상작전에서 데이터 링크 기반으로 국방 아키텍처프레임워크(MND-AF) OV-6c(운용상태 추적 기술서)에서 작전정보 공유효과를 살펴보고, 정보 전파과정 개선을 식별하는 것이다. 본 논문에서는 효과적인 해군작전의 해상 TF를 위한 작전절차 모델을 제안하였다.

궐증(厥證)의 병인병기(病因病機) 및 치방(治方)에 관한 문헌적(文獻的) 고찰(考察) -내경(內經)과 상한론(傷寒論)에 대(對)한 역대의가(歷代醫家)의 견해(見解) 차이(差異)를 중심(中心)으로- (The study of Literature Review on the pathological mechanism and Therapeutic methods of sudden coma -Focused on Different opinion of successive dynastic medical group in HwangJeNaeKyung and SangHanRon-)

  • 유형천;곽정진;최창원;이강녕;이영수;김희철
    • 대한한의학방제학회지
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    • 제11권1호
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    • pp.57-90
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    • 2003
  • The result of Bibliographic studies on the pathological mechanism of the sudden coma, we got the conclusion like this. 1. The sudden coma is an acute syndrome that refers to be a sudden fainting, an unconsciousness, an aphasia or a cold clammy limb, and immediately awakes or dies, and awakes in a short time, and if we awake, it doesn't leave over and above a sequela. 2. The clinical presentation of the sudden coma can be summarized as follows : The 1st is a disease raising the sudden death due to unconsciousness accompanied by wry mouth & sudden syncope with coma. The 2nd is simply the state of cold limbs. The 3rd is the meaning of the physique and symptomes of the six meridians. The last is the ancient method of expression in contrast of the beriberi. 3. The pathological mechanism of the sudden coma consists of the toxoid from outside, Qi and Xie, fatigue, damp phegm, the damage from seven emotions and the damage from five mental elements, especially the mental disorder due to the angry energy, causes the problems when the fleming-up of liver fire and the depressed of liver qi raise the physiological disorder. 4. Therapeutic methods of sudden coma are soothing the liver and remove stasis, soothing depression and circulating of the qi, calming the liver and suppressing yang. When that is early stage, at first, we must checking upward adverse flow of the qi after promoting the circulation of qi and awakening, and then, we must regulate excessive deficiency of yin yang by therapy that is based on differentiated in symptoms according to heat & cold, deficiency & excess, and use invigorating herb medicine for supporting vigour.

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전쟁의 기억: 전재에서 자연재해로 - 6.25전쟁기 회화 작품에 나타난 피난 이미지 (The Memory of War : from War Damages to Natural Disaster -The Evacuation Image Portrayed in Korean War Painting)

  • 조은정
    • 미술이론과 현장
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    • 제13호
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    • pp.7-33
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    • 2012
  • The memory of the Korean War is about the time period when people lived toughly during evacuation, due to being exposed to the natural climate such as intense cold or heat without any protection, leaving their comfortable home and living in temporary built shelters which were barely enough to avoid the wind. 'Death is concealed and only the figures of evacuation for survival were expressed, just as how the government ordered. Since the experience of the battlefield is personal and fragmentary, that is broken into pieces, it does not have compatibility. As war is a distorted experience that cannot be placed in a big picture, it is not possible to take a view of the war's big picture. Having this individualized experience as a common collective memory is an issue and it is the will that people tries to pursue. The reason why the evacuees from north to south, and as well as from the south to further south were all able to be adopted as the theme of artworks due to the military action that emptied the occupied territories of the North Korean Army under the forced removal command. In such situations, the natural state of the 'snow' was like a symbol of the 1.4 Recession. The group of people who were thrown into the intense cold displaced the war damage of loosing their base livelihood, and symbolized the obedient citizens who faithfully follow their government's command. The figure of advocating anti-communism is projected as a figure of a refugee during cold winter-time and it contains ones past which he or she obeyed its own country's commands. Evacuation, especially the evacuation during the winter is a visual device that can confirm these kinds of country's command. The consequences were same for the artists as well. Therefore, the situation being communal could be found due to the individual experiences during war are ideological. The image of the refuge shown in the picture played the role of strengthening the consciousness of defecting to South Korea into the meaning of the 'Finding Freedom.' I would like to express that the reason of them leave their home during the harsh winter is in order to avoid the oppression of the Communist Party. The evacuation that people went through was not to 'Finding Freedom', but 'To Survive'. Later, this evacuation has been imprinted as a behavior of choosing free Republic of Korea, which was an ideological issue. Anti-communism was the rule of survival in South Korea society, and people have the tendency to remember what they want to remember. As it is not the people who possesses an incident, but the memory that possesses ones, people cover their memory with disguised plots in order to forget the violence and to live a different prologue. They share the incident of violence as a hurtful memory. The tragedy of the Korean War was the result of Ideology and being in between the powerful nations' rights, but the violence during the war has been depicted as a natural disaster, which was the evacuation in heavy snow.

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노인그룹홈의 운영과 생활환경에 관한 연구 -전주시와 광주시를 중심으로- (A Study on the Management and Living Environment of the Group-homes for the Elderly -Focusing on Jeonju and Kwangju-)

  • 안경온
    • 한국생활과학회지
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    • 제18권4호
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    • pp.841-855
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    • 2009
  • The main objective of this study is to examine the situations of group-homes for the elderly and clarify the problems of them. This study investigates the present conditions of welfare facilities and supply conditions. 4 group-homes were surveyed in Jeonju and Kwangju cities. Data was collected through various ways including the survey conducted by facility operators, the measurement of living space, and photo-takings. The major results of this study are as follows: 1) With the introduction of nursing care insurance in 2008, the increase of the demand and supply to group-home will be expected, due to less cost for recuperation. The care of elderly in homelike atmosphere is effective to the elderly suffering from dementia. Therefore, it is proper that the supply of group-homes for dementia will be needed. 2) Group-homes for the elderly are being supplied under the standards of welfare facilities in the present. Separate supply standards, however, are needed because they are not suitable for small scale group-homes. 3) To supply Group-homes for the elderly on a one-unit basis would cause various problems such as economical unreality, personnel distribution and so on. It is necessary to supply more than two units for more efficient management. 4) The management of group-homes for the elderly is financially unstable because the operating funds heavily depend on the users or people who are connected with the facilities through private networks. Therefore, additional support is needed to settle the financial problem. It would be helpful to build the public networking that provides information about the group-home for the elderly for the public. 5) In case of the increase in the supply of the group-home in a residential area, it could be helpful to promote the group-home to the public. 6) The operators state that the main problems of group homes for the elderly lie in financial difficulties and the shortage of professionals and volunteers. The financial, personnel, and material support for personnel and the supervision of management are required for the transparency and effectiveness of the facility management. In addition, the closer network and cooperation system with the community is required. 7) The present living environments for group-homes for the elderly leave much room for improvement, considering the physical condition of the elderly. The more careful selections in the color, shape, material, and equipment of the facilities should be made for the convenience of the elderly users.

이동원의 중서병(中暑病)에 대한 고찰 (A Study on the Disease of Zhongshu of Lidongyuan)

  • 윤기령;백유상;장우창;정창현
    • 대한한의학원전학회지
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    • 제31권4호
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    • pp.79-90
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    • 2018
  • Objectives : In present, various definitions of Zhongshu are being used interchangeably in Korea. The paper attempted to discover the disease of Zhongshu as studied by Lidongyuan, who was ahead of his time. Methods : A database of medical books has been studied to find Lidongyuan's writings on the disease of Zhongshu, and mentions about Li's works in past medical books. The paper contemplated the subject by defining the disease of Zhongshu and reviewing the disputes related to the subject. Results & Conclusions : Lidongyuan gave a detailed explanation on the fact that Zhangjiegu distinguished between Zhongshu and Zhongre, and this was influenced by Shangshu as mentioned in Taipinghuiminhejijufang. Therefore, it can be deduced that he was aware of the fact that summerheat-heat as latent summer heat syndrome is lurking inside the body, not being able to be released. According to the disease of Zhongshu by Lidongyuan, yin cold was receieved secondary after first receiving summerheat-heat. It is either summerheat damaged defensive qi, failure in storing the essence made defensive qi weak, or seasonal reasons have caused the defensive qi to be drained and leave the body exposed to damage by summerheat. This is because the fundamental main cause is the hitting of summerheat, since yin cold was received after the presence of summerheat-heat is made first. Many doctors in the following generation criticized that Lidongyuan's disease of Zhongshu cannot be named as a Zhongshu due to its similarity with Shanghan. However, they cannot be viewed as similar since it is a phenomenon where yin cold becomes congested while the body is weak and heat is generated in the body due to summerheat-heat. The doctors who said they were similar only focused on the external cause that was only the superficial issue. According to Lidongyuan's method, the right way to treat a Zhongshu disease is to use the method of tonifying the qi and eliminating the heat in conjunction with eliminating the internal dampness or treat the external syndrome, or to use a formula to tonify the qi and eliminate the fire heat before eliminating the internal dampness or treating the external syndrome.

Fabrication of Microwire Arrays for Enhanced Light Trapping Efficiency Using Deep Reactive Ion Etching

  • 황인찬;서관용
    • 한국진공학회:학술대회논문집
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    • 한국진공학회 2014년도 제46회 동계 정기학술대회 초록집
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    • pp.454-454
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    • 2014
  • Silicon microwire array is one of the promising platforms as a means for developing highly efficient solar cells thanks to the enhanced light trapping efficiency. Among the various fabrication methods of microstructures, deep reactive ion etching (DRIE) process has been extensively used in fabrication of high aspect ratio microwire arrays. In this presentation, we show precisely controlled Si microwire arrays by tuning the DRIE process conditions. A periodic microdisk arrays were patterned on 4-inch Si wafer (p-type, $1{\sim}10{\Omega}cm$) using photolithography. After developing the pattern, 150-nm-thick Al was deposited and lifted-off to leave Al microdisk arrays on the starting Si wafer. Periodic Al microdisk arrays (diameter of $2{\mu}m$ and periodic distance of $2{\mu}m$) were used as an etch mask. A DRIE process (Tegal 200) is used for anisotropic deep silicon etching at room temperature. During the process, $SF_6$ and $C_4F_8$ gases were used for the etching and surface passivation, respectively. The length and shape of microwire arrays were controlled by etching time and $SF_6/C_4F_8$ ratio. By adjusting $SF_6/C_4F_8$ gas ratio, the shape of Si microwire can be controlled, resulting in the formation of tapered or vertical microwires. After DRIE process, the residual polymer and etching damage on the surface of the microwires were removed using piranha solution ($H_2SO_4:H_2O_2=4:1$) followed by thermal oxidation ($900^{\circ}C$, 40 min). The oxide layer formed through the thermal oxidation was etched by diluted hydrofluoric acid (1 wt% HF). The surface morphology of a Si microwire arrays was characterized by field-emission scanning electron microscopy (FE-SEM, Hitachi S-4800). Optical reflection measurements were performed over 300~1100 nm wavelengths using a UV-Vis/NIR spectrophotometer (Cary 5000, Agilent) in which a 60 mm integrating sphere (Labsphere) is equipped to account for total light (diffuse and specular) reflected from the samples. The total reflection by the microwire arrays sample was reduced from 20 % to 10 % of the incident light over the visible region when the length of the microwire was increased from $10{\mu}m$ to $30{\mu}m$.

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WPAN에서 통신가능성 정보 요소와 PNC 선택 방법 (Accessibility Information Element & a PNC Selection Method in the High Rate WPAN)

  • 정헌주;조무호
    • 한국통신학회논문지
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    • 제30권10B호
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    • pp.639-647
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    • 2005
  • WPAN에서는 망 중재를 위하여 하나의 피코넷 코디네이터(Piconet Coordinator; PNC)가 요구되는데, 이러한 코디네이터는 망을 구성하는 디바이스들 중에서 선발된다. 그리고 선발된 PNC가 피코넷을 이탈하거나 운영을 중지할 때 또는 현재의 PNC보다 더 능력이 우수한 디바이스가 피코넷에 참여할 때 PNC 핸드오버(Handover) 과정을 통하여 신규 PNC로 PNC역할이 이양된다. 고속 WPAN 표준화 권고안(IEEE 802.15.3)에서는 PNC 핸드오버를 위해 신규 PNC를 선발할 때 디바이스의 규격과 관련된 능력(Device Capability) 정보요소 (Information Element; IE)만을 기준으로 제시하고 있다. 본 논문에서는 PNC 후보를 선발할 때 고려해야 하는 정보요소로 통신가능성(Accessibility)을 살펴보고, 제시한 통신가능성 정보요소를 고려한 PNC 선택 방법을 제안하였다. 제안하는 PNC 선택 방법은 피코넷에 참여중인 디바이스들을 최대한 상속함으로써 보다 효과적인 피코넷 운영관리가 가능하며, 유지하고 있는 PNC 후보 목록을 이용하여 기존의 PNC가 긴급하게 피코넷에서 이탈하는 경우에 PNC 선택 과정 없이 PNC 후보 목록 중에 우선 순위가 가장 높은 디바이스에게 PNC 핸드오버를 실시할 수 있으므로 긴급한 경우에 효과적인 대처가 가능한 장점이 있다.

당뇨병 환자의 당뇨성 안질환 및 신장질환 합병증 검사 수검 여부에 영향을 주는 요인 (Factors affecting Diabetic Eye disease and Kidney disease Screening in Diabetic Patients)

  • 강정희
    • 한국산학기술학회논문지
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    • 제21권4호
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    • pp.226-235
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    • 2020
  • 연구목적은 당뇨성 안질환 및 신장질환 합병증 검사 수검여부에 영향을 주는 요인을 알아보기 위함이다. 본 연구는 2017년 지역사회 건강조사 전국 자료를 이용하였으며, 연구대상은 의사에게 당뇨병을 진단받은 적이 있다고 응답한 사람 25,829명이다. 당뇨병 환자의 당뇨성 안질환 및 신장질환 합병증 검사 수검여부에 영향을 주는 요인을 알아보기 위해 로지스틱 회귀분석을 실시하였다. 연구결과는 당뇨병 환자 중 당뇨성 안질환 합병증 검사 수검율은 35.6%, 당뇨성 신장질환 합병증 검사 수검률은 39.8%이었다. 걷기실천을 할수록(OR=1.03, OR=1.02), 당화혈색소(OR=2.33, OR=2.33) 및 혈당수치(OR=1.61, OR=1.71)를 인지하는 사람과 현재 당뇨병 치료(OR=2.67, OR=3.05) 및 당뇨병 관리교육(OR=1.45, OR=1.47)을 받는 사람의 당뇨성 안질환 및 신장질환 합병증 검사를 받을 가능성이 많았다. 결론적으로 당뇨성 합병증 검사 수검율을 높이기 위해서는 당뇨병 환자를 대상으로 당뇨성 합병증 검사의 종류와 검사 시기가 포함된 당뇨병 관리 교육체계와 당화혈색소 및 혈당수치를 인지시킬 수 있는 다양한 홍보 방법 등이 개발되어야 할 것으로 생각된다. 그리고 당뇨병 관리를 위한 가이드라인 개발하고, 국가차원에서 국가검진제도에 당뇨성 합병증 검사 선별검사항목을 포함하는 등 시스템이 필요할 것으로 보인다.

중소기업 M&A 의사결정 과정에 관한 연구 (Case Study on Decision-Making Process for M&A in Small and Medium Companies)

  • 정한석;문재승
    • 유통과학연구
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    • 제13권10호
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    • pp.65-72
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    • 2015
  • Purpose - A rapidly changing business environment places great demands on small and medium-sized enterprises (SMEs). These SMEs need to find strategic alternatives for continued growth and, ultimately, survival. Thus, mergers and acquisitions (M&A) are deemed an acceptable solution. Research to date has dealt with M&A in major organizations and focused on post merger integration (PMI). Our study focuses on SMEs, as they are relatively new and unknown to the public. Therefore, this study highlights successful M&A and decision making for SMEs through a case study analysis. Research design, data, and methodology - For this study, we examined an M&A case between company S, which produces cell phone parts, and company P, which produces SSD cases. We reviewed theories and previous studies in M&A literature. We comprehensively examined the decision-making procedure at each M&A stage, describing the situation of the buying company and the selling company from the period of the M&A announcement through deal completion. In addition, we conducted interviews with both companies. The data regarding this case study were collected through interviews with managers of both companies who actively participated in the M&A process. When necessary, we asked them about additional relevant information during the interviews. Results - The result of the M&A between company S and company P was deemed acceptable with the exception of the long negotiation period. However, company S was not able to prepare for PMI after the acquisition due to a controversy over acquisition values. Moreover, the employees of the newly formed company, especially those who came from company P, complained about the M&A and attempted to leave. Thus, implications for successful M&As of SMEs are as follows: First, the procedural compliance of the M&A is needed. Second, support is needed from the CEO for the working group, rather than excessive intervention during due diligence. Third, the right, talented members of the organization should be part of the process of the M&A. Fourth, the use of various types of outside expert or business consultants is needed. Fifth, the strategic intervention by Human Resource managers is required. Last, sharing M&A information among employees is important as information dissemination will help employees be more receptive to such a change. However, this study has several limitations as a single case study; more varied SME M&A case studies are needed in order to generalize the results of the study. Conclusions - Most of the research dealing with M&As has focused on major companies and PMI and neglected SMEs. Thus, our study focuses on SMEs and the decision-making procedures for M&A. This study has significantly contributed to the literature in this area and has provided practical information around the implications of sound decision-making during M&As. Specifically, the results of the study contribute to the need for research on M&A among SMEs, which to date has often been neglected as a topic of choice.