치과위생사의 직업성 요통발생 관련요인 조사

이승주,주민,조명숙,Lee, Seung-Ju,Ju, Min,Jo, Myeong-Suk 대한물리치료사협회 1992 대한물리치료사협회지 Vol.13 No.2

생체 내 분해 콜라겐기질을 이용한 섬유주절제술의 임상적 소견 및 임상 효과에 대한 분석

이승주,우제문,민정기,기창원,임진호,Sung Ju Lee,Je Moon Woo,Jung Kee Min,Chang Won Kee,Jin Ho Yim 대한안과학회 2012 대한안과학회지 Vol.53 No.2

Purpose: To observe the effects of biodegradable collagen matrix (OculusGenTM) on filtering bleb formation and maintenance and to investigate its clinical effects and usefulness in trabeculectomy. Methods: Ophthalmologic examinations were preformed 1 day, 2 weeks, 1 month, 2 months, 3 months, 6 months, and 12 months postoperatively in the case and control groups. The clinical findings of the filtering bleb were observed, and the clinical effects measured by mean intraocular pressure and complications were evaluated in both groups. Results: The success rates were 76% in the case group and 88% in the control group, and there were no significant differences between the case and control groups. In the case group, postoperative conjunctival injection persisted for more than 1 month with increasing severity, while ultrasound biomicroscopy revealed increased echogenicity of the subconjuctival and tenon tissue with no definite space-occupying effect. Conclusions: Trabeculectomy utilizing collagen matrix showed similar clinical results compared to the current traditional trabeculectomy; slit-lamp and ultrasound biomicroscopy findings did not reveal any advantageous changes to filtering bleb function. J Korean Ophthalmol Soc 2012;53(2):297-305

CT를 위한 웹기반 디지털 아카이브

이승주,황기환,Lee, Seung-Joo,Hwang, Ki-Hwan 한국정보기술전략혁신학회 2009 情報學硏究 Vol.12 No.1

Culture contents are in our life with various parts. There are much try and research managing and keeping the culture contents with growing of information technique. Digital archive was proposed the technique that is able to distribute and manage the contents. This paper proposed the web based digital archive for culture contents. Each of archive were sorted art, architecture, science technology and etc, and made the structure that can total manage.

알레르기성 비염 모델에서 통관산(通關散)이 Total IgE, specific IgE 생산에 미치는 영향

이승주,김윤범,Lee, Seung-Joo,Kim, Yoon-Bum 대한한방안이비인후피부과학회 2007 한방안이비인후피부과학회지 Vol.20 No.1

Background &Objectives : Rhinitis is an inflammation of nasal mucosa and the major symtoms are watery rhinorrhea, sneezing, itchy nose, and nasal obstruction. Rhinitis is classified into allergic rhinitis and nonallergic rhinitis. Allergic rhinitis is an immune reaction by allergen, and vasomotor rhinitis which is nonallergic and noninfectious is hypersensitive reaction. The incidence of allergic rhinitis has increased and the rate of vasomotor rhinitis is high. However there have been no studies about vasomotor rhinitis compared with allergic rhinitis. And there have been no studies so far performed on the effect of Tongkwansan. Therefore this study is aimed to find out the effects of Tongkwansan on allergic rhinitis and vasomotor rhinitis. Materials and Methods : Fifteen BALC/c mouses were divided into three groups : normal group, control group and sample group. To induce the allergic rhinitis in control group and sample group, mouses were sensitized intrapertioneally 0.1% ovalbumin solution three times at intervals of 1 week. Then intranasal sensitization was performed by diffusing 0.1 % ovalbumin solution 3 times at intervals of 2 days. After that time, mouses in the sample group were oral administration treated by Tongkwansan for 28 days. We observed changes in the segment of IL-4, IL-5, $IFN-{\gamma}$, Total IgE, and ovalvumin specific IgE in blood. We used the statistical methods of ANOVA test(p<0.05). Results : There were no significant changes statistically in $IFN-{\gamma}$, IL-4, and IL-5 in blood(p<0.05). There were also no significant changes statistically in Total IgE, OVA-specific IgE in blood(p<0.05). Conclusion : According to above results, it is supposed that Tongkwansan has no significant effects on allergic rhinitis. But it is supposed that Tongkwansan has significant effects on vasomotor rhinitis which is nonallergic and noninfectious

마이토마이신을 사용한 섬유주절제술 후 여과포 관리에 대한 석상 봉합의 유용성

이승주,우제문,김상우,안재환,임진호,Sung Ju Lee,Je Moon Woo,Sang Woo Kim,Jae Hwan An,Jin Ho Yim 대한안과학회 2013 대한안과학회지 Vol.54 No.2

Purpose: To evaluate the usefulness of external bandage suture for bleb-related management that follows trabeculectomy with mitomycin C. Methods: External bandage sutures were performed on 10 patients having hypotony maculopathy, persistent low intraocular pressure (IOP) caused by either hyperfiltration or focal leakage, or a persisting large bleb caused by hyperfiltration and who received trabeculectomy using mitomycin C as an adjuvant treatment. The changes in IOP measured before and 4 weeks after the procedure along with complication incidences were evaluated. Results: The mean IOP 4 weeks after the procedure compared with the mean IOP prior to the procedure increased from 5.8 ± 2.0 mm Hg (3.0-9.0 mm Hg) to 14.1 ± 8.5 mm Hg (4.0-32.0 mm Hg), with statistical significance (p = 0.008). After the procedure, improvement in visual acuity was observed but without statistical significance. One patient had persistent focal leakage from an avascular bleb and conjunctival advancement with removal of the avascular conjunctiva was performed. Conclusions: An external bandage suture can be a good alternative for correction of post-trabeculectomy hypotony and severe chemosis with minimal effect on blebs while correcting focal leakage and hyperfiltration.

하악전돌증 환자에서 기관내 삽관을 위한 기도평가에 관한 연구

이승주,김현정,염광원,Lee, Sung-Ju,Kim, Hyun-Jeong,Yum, Kwang-Won 대한치과마취과학회 2003 Journal of Dental Anesthesia and Pain Medicine Vol.3 No.1

Background: The fundamental responsibility of an anesthesiologist is to maintain adequate gas exchange. Failure to maintain a patent airway can result in brain damage or death. Generally, in patients with mandibular prognathism, who have the protruded mandible, the mask ventilation was thought to be not easy. The purpose of this study was to observe the degree of the difficulty of airway management in mandibular prognathism using some anatomic criteria for defining and grading difficulty of airway and difficulty of endotracheal intubation with direct laryngoscope. Methods: The observations and measurements are done to the 54 patients with mandibular prognathism, who were scheduled for corrective esthetic surgery. The case study is done to the 30 patients with normal mandible for control group. In all patients, mouth opening distance (MOD), mouse opening angle (MOA), mandibular length (ML), mandibular depth (MD), thyromental distance (TMD), thyromental area (TMA), Mallampati grades, and Cormack and Lehane grades are measured. T-test and Chi-square test are done (P < 0.05). Results: In the mandibular prognathism cases, the measurements of MD, TMD and TMA are more greater than those of controls (P < 0.05). Mallampati grades with tongue thrust are higher in the female mandibular prognathism cases than those of female controls. Most of the grades of the mandibular prognathism cases with Cormack and Lehane grading system are I or II being easy intubation cases (P < 0.05) Conclusions: In the patients of mandibular prognathism, the intubation with laryngoscope will be easer than that of normal mandible in general. It is for that their laryngeal aperture can be easily visible when the laryngoscope are used.

기본 요분석검사의 임상적 이용

이승주,Lee, Seung Joo 대한소아신장학회 2013 Childhood kidney diseases Vol.17 No.2

Routine urinalysis is a simple, economical, and useful test that facilitates the detection of urinary system diseases and monitoring of renal disease progression. It consists of 4 parts of specimen evaluation, gross examination, a dipstick urinalysis, and a sediment microscopic urinalysis. Urine specimens should first be evaluated in terms of acceptability, and thereafter, the gross appearance is examined for color, turbidity, and odor. In particular, a dipstick urinalysis is an easy and rapid test that provides information on the multiple physicochemical properties of the urine sample. Moreover, although a sediment microscopic urinalysis is time-consuming, it provides information on the cells, microorganisms, casts, and crystals. In the present report, the clinical significance of the routine urinalysis and the problems concerning interpretation are summarized.

직립식 산란계사 내의 소음 진동 발생 현황 조사연구

이승주,장동일,장홍희,Lee S.J.,Chang D.I.,Chang H.H. 한국축산환경학회 2006 축산시설환경학회지 Vol.12 No.1

국민의 소득 증대로 인해 육류 및 계란의 소비량이 점차적으로 증가하는 추세에 있다. 이로 인해 산란계사의 규모가 대형화됨에 따라 기계화되었고, 이 연구에서는 고단 직립식 케이지를 사용하는 무창계사에서 기계시설이 작동 시 발생되는 소음 및 진동이 산란계의 생산성에 미치는 영향을 구명하고자 산란계사내의 소음/진동 수준을 측정 분석하였다. 전국의 13개 산란계 농장을 대상으로 하여 평상시 및 기계시설(사료급이기, 사료분배기, 집란시스템, 환기장치, 계분벨트)의 작동시에 발생되는 소음/진동을 측정하였다. (1) 평상시 소음 최대 82dB, 진동 최대 0.2072 cm/s, (2) 사료급이기 작동 시 소음 최대 90dB, 최대 진동 2.8560cm/s, (3) 사료분배기 작동시 소음 최대 90dB, 최대 진동 2.022cm/s, (4) 집란시스템 작동 시 최대 소음 87dB, 최대 진동 0.1865cm/s, (5) 환기장치 작동 시 케이지에 미치는 최대 88dB, 계사 후면 벽면에 미치는 최대 진동 2.5364cm/s, (6) 계분벨트 작동 시 최대 소음 88dB, 최대 진동 0.2387cm/s 이었다. 따라서 산란계에게 직접적이고 가장 크게 영향을 미치는 장치는 급이 시스템이였다. 이 때의 소음은 최대 90dB로 가장 높게 발생하였으며, 진동은 최대 2.8560 cm/s 발생하였다. This study was carried out to measure and analyze the characteristics of noise and vibration, and to analyze their effects on the productivity of layers, mechanical troubles, and abnormal wear-out failure of facilities and equipment of the layer house. The measurements of noise and vibration were taken at 13 layer farms nationwide for the operations of feed supplier system, feed distribution system, automatic egg collection system, ventilation system, blot conveyer for layer feces, and fur the case of with and without their operation by a sound level meter and a vibration measuring system in the layer house equipped with upright multi-tier cages. Measurement results showed that normal times were noise(N) 82 dB and vibration(V) 0.2072 cm/s, feed supplier system were 90 dB(N) and 2.8560 cm/s(V), feed distribution system were 90 dB(N) and 2.0222 cm/s(V), automatic egg collection system were 87 dB(N) and 0.1865 cm/s(V), ventilation system 88 dB(N) and 2.5364 cm/s(V), belt conveyer fur layer feces were 88 dB(N) and 0.2387 cm/s(V), and then maximum values of noise and vibration were 90 dB and 2.8560 cm/s, respectively, when feeding systems(feed supplying system and feed distribution system) were operated. Based on these results, an experiment is being conducted to find out the effect of noise and vibration on the productivity of layers in the layer house equipped with upright multi-tier cages.

소아에 발생한 갑상선 악성 종양

이승주,김대연,김성철,김인구,Lee, Seung-Joo,Kim, Dae-Yeon,Kim, Seong-Chul,Kim, In-Koo 대한소아외과학회 2000 소아외과 Vol.6 No.2

Thyroid carcinoma is relatively rare in children. Eight cases of thyroid carcinoma were among 18 patients operated upon for thyroid tumors at Pediatric Surgery, Asan Medical Center in 11 years' period between 1989 and 2000. Five patients were boys and three were girls. The age distribution ranged from 10 to 14 years with a median age of 11.6 years. We studied clinical presentations, diagnostic workup, pathology, treatment, and follow-up (recurrence, mortality, and survival). All patients presented with anterior neck mass but one with multiple cervical lymph nodes enlargement. Familial history of thyroid cancer was seen in one case. All patients had a cold nodule by 1-131 thyroid scan. Fine needle aspiration (FNA) biopsy was performed in all patients. The right lobe was involved in four patients and the left lobe in two. Two had both lobes involvement. Pathologically, six cases were papillary carcinoma, one was follicular carcinoma, and one insular carcinoma. Four patients underwent unilateral lobectomy and isthmectomy. Total thyroidectomy was performed in three patients. The insular carcinoma case was preoperatively diagnosed as follicular neoplasm by FNA. After confirmation of the pathology by initial right thyroid lobectomy, total thyroidectomy was subsequently done. Cervical lymph node metastases were presented in three cases (37.5%), and lung metastasis in two cases (25%). Three patients received postoperative I-131 ablation. After a median follow-up of 53 months, all patients were alive without evidence of recurrence. In conclusion, thyroid carcinoma in children is frequently associated with lymph nodes involvement and distant metastasis, however, the prognosis is relatively good.

호퍼식급이기의 진동 저감을 위한 진동 특성 연구

이승주,장동일,소재광,장홍희,윤택진,Lee, S.J.,Chang, D.I.,So, J.K.,Chang, H.H.,Yoon, T.J. 한국축산환경학회 2008 축산시설환경학회지 Vol.14 No.1

최근 한국의 국민 소득 증대로 인해 육류 및 계란의 소비량이 점차적으로 증가하여, 산란계사의 규모가 대형화됨에 따라 기계화되었고, 기계 시설의 소음/진동이 계사 내 가축의 생산능력에 직 간접적으로 영향을 미치는 영향에 대한 선행연구는 일부분에 국한되어 있다. 이에 본 연구에서는 계사내 기계장치 중 진동발생량이 가장 큰 호퍼식급이기의 진동으로 인한 공진을 미연에 방지하고자 진동모드 및 진동발생량을 계측 분석하였다. 이때 축은 급이기의 구동방향(X축), 케이지 방향(Y축) 및 급이기의 상하방향(Z축)으로 설정하였으며, 사료 충전율 0, 25, 50, 75, 100%인 지점에서 매달아서 계측하는 타격여진법을 응용하여 진동모드를 계측하였다. 획득한 데이터를 분석프로그램을 이용하여 분석한 결과, $30{\sim}500Hz$의 호퍼식 급이기 고유주파수를 구명하였고, 특히 170 Hz 이하의 낮은 주파수대에서는 전달율비가 대부분 높은 수준이었다. 이를 근거로 하여 30, 100, 170 Hz대의 호퍼식급이기 진동 시뮬레이션 분석을 실시하여 취약지점에 대한 분석을 실시하여 진동발생량 계측 지점으로 지정, 계측 분석을 실시하였다. 진동모드와 진동발생량 분석결과를 근거로 하여 호퍼식급이기가 산란계 산란율을 영향을 주는 수준의 진동을 발생시킴을 구명하였고, 각 취약지점에 대한 분석을 통하여 각 축별로 공진 및 제진/방진을 위한 방안 및 장치를 제시하였다. This study was carried out to measure and analyze the vibration levels and modes produced by a hopper type feeder used at laying hen farms, to prevent the vibration resonance and to reduce the vibration of the hopper type feeder (6-tier). The most vibration in a layer house were produced by hopper type feeder as shown the previous study. According to the measurement results, the ratio of transmissibility was as high as 100-638% for natural frequency of 170 Hz or less. And vibration simulations were taken by the results of vibration mode analysis and the weakest points to vibrations were determined accordingly. Then measurement and analysis were taken for those points. The quantities of vibration were 4.6354-4.9118 g($g=9.81^m/s^2$) by axis. In this study, it was found that hopper type feeder generated vibration as much as to influence the ratio of laying eggs of layer. And by the analysis of vibration on the weakest points, design methods and equipment were suggested for isolating/reducing of vibration by each axis.