비부비동 미분화암의 두개안면절제술 후 전완부자유피판을 이용한 뇌 척수액 유출 폐쇄 시행 1례

송기재(Kee Jae Song),조진모(Jin Mo Cho),정운용(Woon Yong Jung),김훈(Hoon Kim),홍현준(Hyun Jun Hong) 대한두경부종양학회 2016 대한두경부 종양학회지 Vol.32 No.2

A 37 year-old male presented with sudden right proptosis and bilateral nasal obstruction. A huge tumor was noted in bilateral nasal cavities, ethmoid sinuses and central frontal sinus on magnetic resonance imaging. Right posterior frontal sinus wall and bilateral medial orbital wall was destructed by the tumor. Complete resection of the tumor was performed via minimal invasive craniofacial resection. Histopaghologic examination revealed sinonasal undifferentiated carcinoma (SNUC). Cerebrospinal fluid leakage was developed after 2 days of the surgery. On the 5th day, anterior skull base was reconstructed with forearm free flap (FFF). The patient got 6000cGy of radiotherapy and survived in 27 months of follow up.

홍삼과 갈조류 혼합 음료 섭취 전후의 체조 선수 유연성 변화

송기재 ( Ki-jae Song ),오재근 ( Jae-keun Oh ) 한국체육대학교 체육과학연구소 2017 스포츠사이언스 Vol.34 No.2

본 연구는 유연성이 경기력 향상에 중요한 요소인 체조선수들을 대상으로 1회성 홍삼과 갈조류 혼합음료 섭취 유무가 견관절(Shoulder joint) 및 체간(Trunk) 유연성 변화에 어떠한 효과가 있는지 알아보는데 있다. 이를 위해 서울 K대학교 엘리트 체조 선수 19명을 대상으로 EXP(섭취) 집단(10명), CON(무섭취) 집단 9명으로 무선 배정 하였다. 사전측정은 신장 및 체성분 분석측정을 시작으로 체간 및 견관절 유연성을 측정하였다. 사전측정 후 1시간의 휴식시간 뒤 사전측정과 동일한 방식으로 사후측정이 실시되었으며, 섭취 집단의 경우 측정 30분전 홍삼과 갈조류 음료를 섭취하였다. 집단 간 섭취 유무에 따른 체간 및 견관절 유연성차이를 비교분석하기 위해 일원변량 반복측정 분산분석(One-way Repeated measure ANOVA)을 실시하였으며, 통계의 유의수준은 α=.05로 설정하였다. 섭취 유무에 따른 체간 및 견관절 좌·우측 유연성은 집단 간 사전(p=.744, p=.891, p=.758), 사후(p=.143, p=.455, p=.670) 모두 통계적으로 유의한 차이가 나타나지 않았으며, 집단 내 시기에서는 체간, 좌·우측 견관절 유연성에서 EXP집단에서만 통계적으로 유의한 차이가 나타났다(p=.001, p=.017, p=.008). 또한 집단 및 시기에 따른 상호작용에서는 체간, 좌측 견관절 유연성에서만 통계적으로 유의한 차이가 나타났다(p=.001, p=.043), 이상의 결과로 미루어 볼 때, 홍삼과 갈조류 혼합음료의 1회성 섭취 시 체조 선수들의 체간 및 견관절 유연성 향상이 나타남으로써 운동상해 예방과 경기력 향상에 긍정적인 영향을 미칠 것으로 사료된다. This study aims to identify the effects of one time intake of red ginseng and Phaeophyceae mixed drink on the improvement of shoulder joint and trunk flexibility in gymnasts, and to provide basic data on prevention of injury and improvement of performance. For this purpose, total 19 elite gymnasts from K university in Seoul participated and they were divided into 10 persons of EXP(intake) group and 9 persons of CON(no intake) group. Pre-measurement was performed height using, body composition analysis, trunk flexibility and shoulder joints flexibility. After 1 hour rest period after pre-measurement, post-measurement was performed in the same manner as the pre-measurement. In the case of intake group, red ginseng and brown algae mixed drink was consumed 30 minutes before post-measurement. One-way repeated measure ANOVA was performed to compare the difference in trunk and shoulder flexibility according to the presence or absence of intake between two the groups. The significance level of the statistical significance was set as α=.05. The flexibility of the trunk and left & right shoulder according to the presence or absence of ingestion showed no statistically significant difference between the groups in pre-measurement(p=.744, p=.891, p=.758) and post-measurement(p=.143, p=.455, p=.670). In the times within the group, there was a statistically significant difference in trunk and left and right shoulder flexibility only in the EXP group(p=.001, p=.007, p=.008). There was s statistically significant difference only in the trunk and left shoulder flexibility in group and time interaction(p=.001, p=043). These results suggest that gymnasts flexibility and shoulder flexibility are improved during one-time intake of red ginseng and brown algae mixed drink, which will have a positive effect on prevention of sports injury and improvement of performance.

포워더의 위험관리전략에 관한 연구 - AHP 방법을 이용하여 -

송기재 ( Kijae Song ),여기태 ( Gitae Yeo ) 한국로지스틱스학회 2016 로지스틱스연구 Vol.24 No.4

본 연구는 국내에서 사업을 영위하는 포워더들이 직면하는 주요 위험요인들을 식별하고, 경쟁력 유지에 필요 한 위험관리의 우선순위를 찾아내고, 한국의 경쟁력 있는 포워더들의 위험관리전략을 살펴보는 것을 목적으로 한다. 2014년 당기순이익 기준 상위 26개 포워더의 CFO 또는 관리자들에게 리커트 5점 척도, AHP 쌍대비교 척도 등으로 된 설문서에 응답해 줄 것을 요청한 결과 13명의 CFO들을 포함한 15명이 이메일과 면접에 의한 설문조사에 응답하였다. 본 연구의 주요 결과로 (1) 포워더들이 직면하는 주요 위험요인들은 5개의 위험유형들 과, 14개의 개별위험들로 식별되었고, (2) 포워더들의 경쟁력 유지에 필요한 위험관리의 우선순위는 조달위험, 고객위험, 환경위험, 운영위험, 재무위험으로 도출되었으며, (3) 고객과 운송서비스계약을 체결할 때 노출되는 위험들의 경우, 상위 26개사들 중 외국계 글로벌 포워더들은 고객으로부터의 수익성이 높은 경우엔 위험과 수익간의 상충관계를 최적화하기 위해서 위험관리의 유연성 전략을 사용하는 경향이 있는 것으로 분석되었다. This study aims to identify what major risks are faced by the international freight forwarders operating in Korea, to find out which risks need to be managed with a higher priority to keep their competitiveness, and to examine the risk management strategies of competitive freight forwarders therein. The CFOs or managers of the top 26 freight forwarders based on the 2014 net profit were asked to respond to the questionnaires using 5-point Likert scale items, AHP pairwise comparison scale items, etc, and 15 people including 13 CFOs responded to the survey by either email or face-to-face interview. The following are key findings from this study: (1) Five risk types and fourteen individual risks are identified as major risks faced by the freight forwarders in Korea; (2) The order of the risks based on their priority in terms of risk management is derived as procurement risks, customer risks, environment risks, operation risks, finance risks in descending order; (3) In the case of the risks that freight forwarders are exposed to when they make a transport service contract with a customer, foreign global forwarders tend to deploy the flexible strategies for risk management in order to optimize the risk/return tradeoff if the profitability from the customer is expected to be high enough.

항공포워더의 항공사 선택요인 및 선택대안에 관한 연구 -중단거리노선에서 소형화물을 중심으로-

송기재 ( Ki Jae Song ),김태복 ( Tae Bok Kim ) 한국항공경영학회 2015 한국항공경영학회지 Vol.13 No.6

국적 저비용항공사들이 2012년에 국제선 화물운송사업을 시작한 이래 이들이 운송한 소형화물의 항공운송물량이 크게 증가하였고, 우리나라의 항공운송시장에서 운송건수측면에서 소형화물운송의 점유율이 매우 높으나, 국적 저비용항공사들의 수출화물의 공급스페이스 이용률은 아직 낮은 수준이다. 따라서, 본 논문에서는 중단거리노선에서 소형화물의 수출운송 시 항공포워더의 항공사 선택요인으로 어떤 것들이 선호되는지와, 그 선택대안으로 국적 저비용항공사와 대형항공사 중 어느 쪽이 더 선호되는지를 파악하고,그들의 경쟁력 제고를 위한 시사점 도출을 위해 연구를 진행하였다.본 연구에서는 AHP기법을 이용한 연구모형을 설정하고, 이메일을 통한 설문조사를 실시하였다. 분석결과 에 따르면, 소형화물의 경우에도 전체화물과 전체노선을 대상으로 한 선행연구에서와 같이, 항공사 선택요인은 비용요인이 가장 높은 중요도를 보였고, 그 다음은 운송특성요인, 서비스특성요인의 순으로 나타났다. 또한, 항공사 선택대안은 대형항공사가 종합적인 선호도측면에서 국적 저비용항공사보다 약간 앞선 것으로 파악되었다. 선택요인별로 보면, 대형항공사는 운송특성과 서비스특성 측면에서 국적 저비용항공사보다 선호도가 앞섰으나, 비용측면에서는 국적 저비용항공사에 뒤진 것으로 나타났다. 국적 저비용항공사들은 운송스케쥴의 신뢰성과 인센티브제도의 개선을 통해 경쟁력을 높일 수 있으며, 대형항공사들은 소형화물에 대해 운송요율을 저렴하게 함으로써 더 나은 경쟁력을 가질 수 있는 것으로 시사되었다. 본 연구의 주된 차별성은 중단거리노선에서의 소형화물에 국한하여 항공포워더의 항공사 선택요인에 대한 분석을 했고, 선택대안을 추가하여 분석의 범위를 확대했으며, 항공사들의 경쟁력 제고를 위한 실무적 시사점을 제공했다는 점에 있다. Since Korean national flag LCCs(low cost carriers) started their international cargo transport in 2012, their transport volumes of small cargoes have increased significantly. However, the utilization rate of their supplied space for export cargoes is still quite lower than expected. And the portion of small cargoes in Korean air transport market is noticeably high. Thus this study is designed to find out which airline choice factors are preferred in the export transport of small cargoes in short-and mid-haul routes, and which out of FSCs(full service carriers) and Korean LCCs as alternatives is preferred, In addition, we try to get implications for improving the competitiveness of the FSCs and Korean LCCs. The research model is based on the AHP method and the survey is conducted by email. The survey results show that even for the small cargoes the Cost factor is the highest in the weight level among the airline choice factors, and then followed by the Transport Characteristics factor and the Service Characteristics factor, which is in an existing study on whole cargoes and whole routes, and that the FSCs exceed the Korean LCCs in the synthesized priority. The survey results also show that the FSCs’ priority exceeds the Korean LCCs in the factors of Transport Characteristics and Service Characteristics, but falls behind the LCCs in the Cost factor. It is implied that the Korean LCCs can enhance their competitiveness by improving the reliability in transport schedule and the incentive system, and that the FSCs can have better competitiveness by lowering their rates for small cargoes. The main differences of this study from the existing studies are that the analysis target for the airline choice factors of air freight forwarders is limited to the small cargoes in short-and mid-haul routes, that the choice alternatives are also analyzed in addition to the choice factors, and that it provides empirical implications for improving the competitiveness of the airlines.

Broad-Band Amplifiers Using Shunt Resistive Loading Technique

Ki-Jae Song(송기재),Jong-Chul Lee(이종철) 한국통신학회 1999 한국통신학회 학술대회논문집 Vol.1999 No.7

후두외상 후 발생한 저음발성 여자환자에서의 라디오전파를 이용한 음도상승 유도 치료 1예

김민호,송기재,최홍식,Kim, Min-Ho,Song, Ki-Jae,Choi, Hong-Shik 대한후두음성언어의학회 2006 대한후두음성언어의학회지 Vol.17 No.1

The factors involved in controlling the vocal pitch are the tension, the mass, the length of the vocal cords and the subglottic pressure. Vocal pitch can be elevated surgically by increasing the stiffness or reducing the vibrating mass of the vocal cords. Recently, we experienced a case of 25 year-old female whose vocal pitch was elevated with radiofrequency surgery of right vocal cord on suspension laryngoscopy. Elevation of vocal pitch(134.11 to 144.73) was noted two months after operation. So we report this case with review of literature.

Effect of a 12-week Shoulder Stability Rehabilitation Program on the Range of Motion and Muscle Strength of Baseball Players with Shoulder Instability

윤진호,오재근,송기재,Yoon, Jin-Ho,Oh, Jae-Keun,Song, Ki-Jae Korea Convergence Society 2021 한국융합학회논문지 Vol.12 No.10

이 연구는 12주간 재활 운동프로그램이 어깨 불안정성을 가진 고등학교 야구선수들의 관절가동범위와 근력에 미치는 효과를 알아보기 위해 실시하였다. 어깨 불안정성이 있는 것으로 판명된 재활 운동군 12명과 정상 운동군 13명을 선정하였다. 12주간 재활운동 참가 전·후 내·외회전 관절가동범위는 공변량분석(ANCOVA)을 실시하였으며, 등속성 근력은 이원변량 분석(two-way ANOVA)을 실시하였으며, 통계적 유의수준은 p<.05로 설정 하였다. 관절가동범위는 불안정이 있는 우위측과 비-우위측 어깨의 경우 재활운동 전·후 내회전 ROM이 유의하게 증가했으며, Total ROM의 경우 불안정이 있는 우위측 어깨에서 재활운동 후 유의하게 증가했다. 등속성 근력의 경우 재활운동 후 내회전 근력이 각속도 180°/sec에서 유의하게 개선되었다. 본 연구 결과를 요약하면 12주간 재활운동 프로그램이 어깨 불안정성 환자의 ROM, 근력 개선에 효과적인 것으로 나타났다. 하지만 제한적 결과에 미루어 재활기간의 연장을 전제로 한 추가적 연구가 필요할 것으로 생각된다. This study investigated the effect of a 12-week rehabilitation program on the range of motion (ROM) and muscle strength of high school baseball players with shoulder instability. We allocated 12 players with shoulder instability to the rehabilitation group and 13 players without shoulder instability to the normal exercise group. Covariate analysis (ANCOVA) was performed to assess the ROM of the internal (IR) and external (ER) rotational joints before and after participating in the 12 weeks of rehabilitation, and two-way ANOVA was performed to assess isokinetic muscle strength. The statistical significance level was set at p<.05. The IR ROM of the dominant (D) shoulder with instability and non-dominant (ND) shoulder was significantly increased before and after the rehabilitation program. The total ROM of the D shoulder with instability significantly increased after rehabilitation. IR isokinetic strength significantly improved at an angular velocity of 180°/s after rehabilitation. These results indicate that the rehabilitation program used in this study could be effective in improving ROM and muscle strength in patients with shoulder instability. However, due to the limited results, additional research on the premise of extending the rehabilitation period is necessary.

임대전용산업단지에 관한 연구

김인중(Kim, In Chung),송기재(Song, Ki Jae) 한국부동산학회 2010 不動産學報 Vol.40 No.-

1. CONTENTS (1) RESEARCH OBJECTIVES The purpose of this study is to suggest the desirable policy direction for the industrial complex specified for lease . (2) RESEARCH METHOD documentary survey, field study, interview, statistical analysis (3) RESEARCH FINDINGS The fundamental policy directions of the industrial complex specified for lease should be ① public owned, ② long-term (more than fifty years), ③ low-cost (1% lease charge out of construction cost). This study points out that Korea Land Corporation can not sustain low-cost and long-term lease industrial complex due to their financial status. Thus these leased have to be sold or government has to provide subsidy to preserve the korea Land Corporation's deficit. Above mentioned three fundamental policy directions start from the recognition that the industrial complex specified for lease seeks public goal and interest. 2. RESULTS To keep UP long-term, low-cost industrial complex specified for lease, government support and allocation of proper budget is cardinal

감태(甘苔)에서 추출한 Dieckol 성분이 쥐의 인지능력에 미치는 영향

오재근 ( Jae Keun Oh ),송기재 ( Ki Jae Song ),지무엽 ( Mu Yeop Ji ),윤진호 ( Jin Ho Yoon ) 대한본초학회 2014 大韓本草學會誌 Vol.29 No.6

Objectives : The purpose of this study aimed to investigate that dieckol - isolated from Ecklonia cava - supplementation can improve cognitive ability in mice. Methods : 48-male mice(6 weeks old) were divided into four groups; High-Dieckol group(n=12), Low-Dieckol group(n=12), Placebo group(n=12), Control group(n=12) and they were administered orally 5 days per week for 4 weeks at the same time. We performed Morris water maze test, Passive avoidance test, Blood serotonin analysis. And there was examined on neurogenesis in dentate gyrus of hippocampus using 5-bromo-2`-deoxyuridine (BrdU) to label proliferating cells. Results : The results are as follows; As a Morris water maze results, Trial duration was significantly decreased in high dieckol group comparing to placebo group and control group. Distance to target was significantly decreased in high dieckol group and low dieckol group comparing to placebo group and control group. Mean speed was significantly low in high dieckol group comparing to low dieckol group, placebo group and control group. As a Passive avoidance test results, latency time was significantly long in high dieckol group comparing to low dieckol group, placebo group and control group. BrdU cell count was significantly high in high dieckol group comparing to low dieckol group, placebo group and control group. Conclusions : As a conclusion, it is considered that dieckol supplementation might improve learning and cognitive ability.

해양 폴리페놀 복합음료 섭취가 역도선수들의 체간 근기능에 미치는 영향

박다운 ( Park Da-woon ),박순철 ( Piao Shunzhe ),송기재 ( Song Ki-jae ),지무엽 ( Ji Mu-yeop ),염동철 ( Yeom Dong-chul ),오재근 ( Oh Jae-keun ) 한국체육대학교 체육과학연구소 2020 스포츠사이언스 Vol.38 No.1

본 연구는 해양 폴리페놀 복합 음료(Marine polyphenol mixed drinks, MPMD) 섭취가 역도선수들의 체간 근기능(Trunk muscle function, TMF)에 어떠한 영향을 미치는지 구명하고 경기력 향상을 위한 기초자료로 제공하는데 목적이 있다. 연구의 대상자는 20명의 서울 소재 K 대학교 남자 역도선수들로 진행하였으며, 집단 선정은 무작위 배정방식으로 MPMD 집단 10명, 통제 집단 10명씩 선정하였다. 사전 측정은 체성분 분석과 TMF 측정 순으로 진행하였으며, 1주일간의 휴식 후 동일한 방법으로 사후측정을 진행하였다. 사후 측정 시 MPMD집단의 경우 측정의 오류를 최소화하기 위해 체성분 분석 이후 MPMD를 섭취하고 30분의 휴식 후 TMF 측정을 실시하였다. 섭취 유무에 따른 집단 및 시기 간의 차이를 비교 분석하기 위해 이원변량 반복측정 분산분석을 실시하였으며, 모든 통계의 유의수준은 α=.05로 설정하였다. 30°/sec 체간 굽힘과 폄의 최대 우력에서 MPMD집단에서만 통계적으로 유의하게 증가한 것으로 나타났으며(p<.05; p<.05), 폄의 최대우력에서는 집단 및 시기에 따른 상호작용 효과에서도 통계적으로 유의한 차이가 있는 것으로 나타났다(p<.05). 60°/sec 체간 폄의 최대우력에서 집단 및 시기에 따른 상호작용 효과에서 통계적으로 유의한 차이가 있는 것으로 나타났다(p<.05). The purpose of this study is to provide basic data on how marine polyphenol mixed drinks(MPMD) intake affects the trunk muscle function(TMF) of weightlifting athletes(WA) and to improve performance. The subjects of the study were WA(N=20) from Seoul K University, and the group selection was Randomization by MPMD group(n=10) and control(no intake, CON) group(n=10). Pre-measurement was conducted in the order of body composition analysis and TMF measurement, and post-measurement was carried out in the same way after a 1 week's rest. In the case of MPMD group for post-measurement, MPMD was ingested after body composition analysis and TMF measurement was performed after 30 minutes of rest to minimize measurement error. Two-way repeated measure ANOVA was performed to compare the differences in TMF according to the presence or absence of intake between groups and time, and the significance level of all statistics set was α=.05. There was a statistically significant increase in the peak torque of 30°/sec trunk flexion and extension(p<.05; p<.05) in only the MPMD group, the peak torque of trunk extension also showed statistically significant differences in group×time interaction effects(p<.05). There was also a statistically significant difference in the effects of group×time interaction effects at the peak torque of 60°/sec trunk extension(p<.05).