• Journal of Gynecologic Oncology
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• 제29권6호
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• pp.92.1-92.9
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• 2018

Objective: To evaluate the effectiveness of the pulmonary recruitment maneuver (PRM) at the end of the operation to decrease laparoscopy-induced abdominal or shoulder pain after gynecological oncologic surgery. Methods: In total, 113 women undergoing laparoscopic surgery for malignant or premalignant gynecological lesions were assigned randomly to two groups: the PRM group (the patient was placed in the Trendelenburg position ($30^{\circ}$) and the PRM, consisting of two manual pulmonary inflations to a maximum pressure of $40cmH_2O$) (n=54) and the control group (n=52). Postoperative shoulder and abdominal pain was assessed 12, 24, and 48 hours later using a visual analog scale (0-10). In addition, the incidence of post-discharge nausea and vomiting was recorded until 48 hours after discharge. Results: Postoperative shoulder pain at 12 and 24 hours was significantly less severe in the PRM group ($2.2{\pm}0.5$ and $2.0{\pm}0.4$) than in the control group ($4.0{\pm}0.5$ and $3.9{\pm}0.4$; both p<0.001). The PRM significantly reduced the severity of upper abdominal pain at 12 and 24 h compared with the control group ($3.1{\pm}0.4$ and $2.9{\pm}0.4$ vs. $2.9{\pm}0.5$ and $4.9{\pm}0.5$; both p<0.001). The analgesic requirement during the postoperative period was similar in the two groups (control group, 78.8%; PRM group, 75.9%; p=0.719). Conclusion: The PRM effectively and safely reduced postoperative shoulder and upper abdominal pain levels in patients undergoing laparoscopic gynecological oncologic surgery. Trial registry at ClinicalTrials.gov, NCT01940042.

• 한국프랜차이즈경영연구
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• 제10권2호
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• pp.19-32
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• 2019

Purpose - This paper aims to investigate the mediating effects of relationship fairness factors between franchisor's support services and performance(re-contract intention) in food service franchise. More specifically, fairness was measured into distributive, procedure, interaction, and information, franchisor's support service was divided into pre-start support services (initial support services) and post-start support services (continued support services), and performance (re-contract intent) was measured using 3 items such as re-contract, contract extension, and recommendation. Research design, data, and methodology - The population for the survey is the head of franchises in the metropolitan area (Seoul/Gyeonggi), which operates a restaurant franchise, and samples included a wide range of overseas/domestic brands and regions. The survey was conducted from August 1 to September 30, 2018 through the survey agency. The survey was conducted together with a telephone interview and a direct visit by the investigator. A total of 205 questionnaires were collected and retrieved, 4 questionaires containing missing information were excluded and 201 responses were used for analysis. Results - The results shows that franchisor's initial support services have significant positive effects on procedural, interpersonal, and informational relationship fairness, and continuous support services have significant positive effects on distributive, procedural, interpersonal, and informational relationship fairness. This study also shows that informational and procedural fairness have significant positive effects on performance(re-contract intention). Finally, continuous services a significant positive effect on performance(re-contract intention). Conclusions - The results show that franchisor make a manual, and should improve fairness through regular investigation whether support services was executed as promised in the manual after franchisee operation. In addition, information fairness and procedural fairness have been shown to increase performance(re-contract intention). These results mean that the franchisor's headquarters should provide product and service support for the merchant in accordance with the manual and management policy to reduce asymmetry in information and improve procedural fairness to enhance performance(re-contract intention).

• 대한정형도수물리치료학회지
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• 제27권1호
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• pp.1-11
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• 2021

Background: The purpose of this study is to identify the elements for the construction of the Korean academy of orthopedic manipulative physical therapy's (KAOMPT's) non-face-to-face lecture system using the Delphi method. Methods: The Delphi method was applied to 50 expert panel members of the Central Committee and the Provincial Branch of the KAOMPT. The Delphi survey was conducted in two rounds, and the first Delphi survey collected opinions on 40 questions on 12 topics. The second Delphi survey was collected into 25 questions on 4 topics. As a result of the survey, the content validity ratio (CVR), consensus and convergence were measured. Referring to the number of expert panels and previous studies were determine a CVR of at least 2.29, a consensus of at least .75 and a convergence of 0 to .5. Result: In the first Delphi result, out of the total 40 items, 20 items with high content validity ratio were found, and 10 items found double agreement. In the second Delphi result, 13 out of the total 25 items had a content validity ratio higher than 2.29, and 5 items found a double agreement. Conclusion: This study derived items on the role of central and municipal councils, lecture support and lecture room construction, non-face regular course and special lecture operation and personnel for the establishment of non-face-to-face lecture system. Based on this content, it is expected that it will help establish a non-face-to-face lecture system in 2021 through a pilot non-face-to-face lecture that will be implemented in the future.

• 대한후두음성언어의학회지
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• 제32권2호
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• pp.87-93
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• 2021

There are a number of voice analysis programs around the world. Domestic voice analysis is performed by relying heavily on specific commercial program. We intend to develop coding for voice analysis using Praat and apply it to clinical practice. This study consisted of Experiment 1 and Experiment 2. Experiment 1 was the development of automated voice analysis coding based on Praat. The coding was largely divided into a recording, an analysis, and a storage section. Experiment 2 was applied to the voice analysis of 2 male patients pre- and post-operation with this coding. The analysis parameters of this coding provided 26 parameters for vowel /a/, nine parameters for sentence analysis, and a total of 4 parameters for voice range profile analysis. In two male patients, the pitch and the intensity increased, the voice quality improved, and the sentence length decreased after surgery. The coding was well made, so the output was good in real time. The code is automated as much as possible to block manual errors and increases convenience and efficiency by generating the result sheet in real time.

• 해양안보
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• 제1권1호
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• pp.149-173
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• 2020

COVID-19 위기로 인해 미국을 비롯한 서구 세력들이 혼란에 빠져 있는 상황에서도, 중국은 회색지대 전략으로 공세적인 해양팽창을 계속하고 있다. 중국이 남중국해를 중심으로 사용하고 있는 회색 지대 전략이란 전쟁도, 평화도 아닌 불분명한 상태를 창출함으로써 국제정치의 현상변경을 추진하는 전략을 말한다. 동아시아 전역으로 영향력을 확대하려 하는 중국은 앞으로 한반도에도 회색지대 전략을 투사하려 할 것이다. 한국이 남중국해 분쟁에 우발적으로 연루되는 경우, 서해에서 중국어선의 불법조업으로 부터 양국의 군사적 갈등이 초래되는 경우, 중국이 이어도에 충돌을 일으키고 개입하려는 경우, 가능성은 낮으나 독도문제를 이용해 한일갈등을 일으켜 한중 결속을 시도하는 경우들이 예상된다. 이에 대처하기 위해 한국은 장기적인 관점에서 아시아 해양안전 선단 창설 및 국가함대라는 틀을 통한 해군과 해경의 통합운용 활성화, 중국의 도발에 대한 대응체계 강화 등을 추구해야 할 것이다.

• 융합보안논문지
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• 제20권5호
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• pp.65-74
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• 2020

최근 확장현실(XR) 기술의 비약적인 발전으로 확장현실(XR) 기술을 활용한 교육훈련체계 개발 및 활용이 크게 늘고 있다. 특히 군사훈련 및 대테러 훈련과 같이 큰 위험성을 동반하고 많은 비용이 발생하는 분야에서는 확장현실(XR) 기술을 활용해 실제 훈련과 유사한 훈련환경을 조성함으로써 훈련성과는 높이고, 훈련에 소요되는 비용은 줄이며, 실제훈련에서 발생할 수 있는 안전사고의 위험을 최소화할 수 있는 확장현실(XR) 기반 모의훈련체계가 대안으로 떠오르고 있다. 본 논문에서는 육군사관학교 주관의 콘소시움에서 기(旣)개발한 5G 기반 증강현실(AR) 통합 지휘통제플랫폼을 기반으로 대한민국 경찰의 테러상황 대응 능력을 향상시키기 위한 확장현실(XR) 기반 초실감 대테러 교육훈련체계 구축방안 및 효과 검증방안을 제안한다. 제안하는 체계는 초실감 콘텐츠 및 훈련 시나리오를 바탕으로 대테러 능력향상을 위한 개인 및 팀 단위 가상훈련이 가능하고, 나아가 모의훈련장 및 실제 작전현장과 연계하여 현장 지휘통제소로도 즉시 활용이 가능하다.

• 대기
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• 제31권5호
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• pp.489-510
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• 2021

In this paper, we propose an algorithm for detecting convective initiation (CI) using GEO-KOMPSAT-2A/advanced meteorological imager data. The algorithm identifies clouds that are likely to grow into convective clouds with radar reflectivity greater than 35 dBZ within the next two hours. This algorithm is developed using statistical and qualitative analysis of cloud characteristics, such as atmospheric instability, cloud top height, and phase, for convective clouds that occurred on the Korean Peninsula from June to September 2019. The CI algorithm consists of four steps: 1) convective cloud mask, 2) cloud object clustering and tracking, 3) interest field tests, and 4) post-processing tests to remove non-convective objects. Validation, performed using 14 CI events that occurred in the summer of 2020 in Korean Peninsula, shows a total probability of detection of 0.89, false-alarm ratio of 0.46, and mean lead-time of 39 minutes. This algorithm can be useful warnings of rapidly developing convective clouds in future by providing information about CI that is otherwise difficult to predict from radar or a numerical prediction model. This CI information will be provided in short-term forecasts to help predict severe weather events such as localized torrential rainfall and hail.

• 대한조선학회논문집
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• 제59권3호
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• pp.183-191
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• 2022

A design method for a propeller type rim-driven axial-flow turbine for a micro-hydropower system is presented. The turbine consists of pre-stator, impeller and post-stator, where the pre-stator plays a role as a guide vane to provide circumferential velocity to the on-coming flow, and the impeller as a rotational power generator by absorbing angular momentum of the flow. BEM(Blade Element Method), which is based on the turbine Euler equation, is employed to design the pre-stator and impeller blades. NACA 66 thickness form and a=0.8 mean camber line, which is widely accepted as a marine propeller blade section, is used for the pre-stator and turbine blade section. A CFD method, derived from the discretization of the RANS equations, is applied for the analysis of the designed turbine system. The design conditions of the turbine is confirmed by the CFD calculation. Turbine characteristic curve is calculated by the CFD method, in order to provide the performance characteristics at off-design operation conditions. The proposed procedures for the design of a propeller type rim-driven axial-flow turbine are established and confirmed by the CFD analysis.

• 한국인터넷방송통신학회논문지
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• 제22권6호
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• pp.83-89
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• 2022

최근 정보통신기술의 발전에 따라 사물인터넷 기술이 비약적으로 발전하고 있다. IoT 기술은 다양한 센서들을 활용하여 각 센서의 고유한 데이터를 발생시켜 시스템 상태의 진단을 가능하도록 한다. 하지만, 현재 적용되고 있는 장비운용 시스템은 장비에 문제가 발생한 후 관리자가 해당 문제를 처리해야하는 사후보전 방식의 개념이며, 이는 시스템의 에러로 인한 시스템의 신뢰성 및 가용성 문제점을 의미할 수 있으며, 정비를 위한 시스템 중단으로 생산성에 부정적 영향으로 인한 경제적 손실을 초래할 수 있다. 따라서, 본 연구에서는 지능형 IoT(AIoT) 기술을 적용하여 공장 내 정류기를 보다 효율적으로 운용하기 위한 엣지 컨트롤러 제어 의사 결정 알고리즘과, 정류기 부품별 고장 상황 정보에 대한 도메인 지식 기반의 모델링을 작성하여, 이를 바탕으로 수집된 각 센서 데이터에 대한 상관관계 분석을 통해 시나리오별 Abnormal 데이터에 대하여 적정 수준의 상태 메시지를 출력함을 확인할 수 있었으며, 이를 통한 기존 현장의 장비 운용 시스템의 가용성과 생산성이 향상됨을 확인하였다.

• 대한통합의학회지
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• 제10권2호
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• pp.145-153
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• 2022

Purpose : This study aimed to investigate the effects of blended learning on learning satisfaction in nursing students. Methods : This study was conducted with 160 current nursing students in the department of nursing at K university located in city B. All students included in the study understood the purpose of the study and provided informed consent to participate. Data were collected between May 3 and July 9, 2021 and analyzed using SPSS/WIN 22.0. The frequency, percentage, mean, and standard deviation were created, and t-test, ANOVA, and Scheffé test for post hoc analysis were performed. Correlations were analyzed using Pearson's correlation coefficient. The factors influencing learning satisfaction were analyzed using multiple regression. Results : Significant differences were observed for academic stress according to the online classes environmental satisfaction (F=4.10, p=.001), online classes experience (t=4.11, p=.001) and self-directed learning ability according to the grade (F=4.10, p=.001), online classes environmental satisfaction (t=4.11, p=.001). The academic stress of nursing students who experienced blended learning was significantly negatively correlated with self-directed learning ability (r=-.480, p<.001), and learning satisfaction (r=-.236, p<.001). self-directed learning ability showed a significant positive correlation with learning satisfaction (r=.524, p<.001). The regression model for the factors affecting the learning satisfaction of the subjects was statistically significant (F= 3.027, p<.001). The major influential factors of learning satisfaction were grade (𝛽=.154, p=.013), satisfaction with school life (𝛽=.168, p=.032), and satisfaction with non-contact learning environment (𝛽=-.141, p=.028). The explanatory power was 28 %. Conclusion : These results indicate that it is necessary to reduce academic stress and increase self-directed learning ability to enhance learning satisfaction in nursing students through blended learning. In addition, the development and operation of a tailored intervention program is required to help improve learning satisfaction.