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.

포워더의 위험관리전략에 관한 연구 - AHP 방법을 이용하여 -

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

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.

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

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.

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

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

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 대한본초학회지 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

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).