배달 애플리케이션 품질이 애플리케이션 신뢰, 라이더 신뢰 그리고 사용의도에 미치는 영향 : 온라인 플랫폼 물류에서의 신뢰 이전을 중심으로

서원태(Won-Tae SEO) 한국프랜차이즈경영학회 2021 프랜차이즈경영연구 Vol.12 No.4

Purpose: Delivery food orders are on the rise due to the COVID 19 pandemic. Many customers are ordering food through delivery apps rather than visiting restaurants to eat out. Delivery application platforms are growing due to the development of O2O. Most of the people who provide gig worker for delivery applications are rider. Rider provides labor on their own terms and have more work flexibility and autonomy than ordinary workers. Trust can be transferred from a well-known entity to an unknown entity. From the customer s point of view of using the delivery application, trust can be seen through the third-party trust of the delivery application platform-rider-customer. Therefore, this study intends to investigate the effect on delivery application trust and rider trust through the well-known characteristics of delivery applications. Research design, data, and methodology: This study was conducted on Korean consumers over 20 years of age who have ordered food through a delivery application for the past month. After educating 5 investigators about the purpose of this study, 60 copies of the survey were conducted per person. During the investigation period, from September 2 to September 26, 2021, 322 copies were collected over 25 days. Among the collected questionnaires, 37 were excluded from insincere or partially unanswered, and 285 were used for analysis. In addition, the collected data were analyzed using SPSS 25.0 and AMOS 25.0. Result: As a result of the study, convenience, price, and variety of restaurants were found to have a significant positive (+) effect on app trust, but design did not have a significant effect on app trust. Also, it was found that convenience had a significant positive (+) effect on trust in rider, but design, price, and variety of restaurants did not have a significant effect. App trust was found to have a significant positive (+) effect on rider trust and intention to use, and it was found to have a significant positive (+) effect on rider trust and intention to use. Conclusions: First, this study established a structural framework between delivery application characteristics-delivery-app trust-rider trust-intention to use. Second, in this study, it was found that customer trust in well-known delivery applications was transferred to less-known rider trust. Third, the delivery application should increase the convenience of use. Fourth, delivery application should set the delivery fee appropriately. Fifth, delivery application must continuously train the rider.

협대역 영상 방광경에 의한 술 후 재발성 방광 종양의 발견

서원태(Won Tae Seo),김택상(Taek Sang Kim),강수환(Su Hwan Kang) 대한비뇨기종양학회 2021 대한비뇨기종양학회지 Vol.19 No.2

인공지능 기반 자동화 반품물류 시스템 개발에 관한 연구

서원태(Seo Won Tae),권영훈(Kwon Young Hoon),최지민(Choi Ji Min),이재모(Lee Jai Mo) 한국통신학회 2018 한국통신학회 학술대회논문집 Vol.2018 No.11

협대역 영상 방광경에 의한 술 후 재발성 방광 종양의 발견

서원태(Won Tae Seo),강수환(Su Hwan Kang) 대한비뇨기종양학회 2020 대한비뇨기종양학회지 Vol.18 No.3

Purpose: We compared the effectiveness of narrow-band imaging (NBI) cystoscopy and white light cystoscopy (WLC) for detection of intravesical recurrence of bladder cancer. Materials and Methods: We studied the positive predictive value (PPV) in the recurrent suspicious lesions in patients with nonmuscle invasive bladder cancer (NMIBC) for the 13 months of the follow-up from July 2016 to June 2017 with WLC and another 13 months from July 2017 to July 2018 with NBI, respectively. We also studied the second transurethral resection of bladder tumor (TURBT) free survival (STFS) and cancer-specific recurrence-free survival (CSRFS) with WLC and NBI in the 12 months of short-term follow-up. Results: The total number of first TURBT patients in the follow-up was 164. Eighty patients were excluded. Among the 84 patients with NMIBC, WLC group was 43, NBI group was 41. Thirty-six patients had more than second TURBT. In 48 cases of patients with more than second TURBT, PPV of WLC and NBI was 81.8% and 61.5%, respectively. There was no statistically significance of PPV between the 2 groups (p=0.124). There were no pathological differences between the results about 1 year of follow-up patients with one of WLC or NBI (p=0.288). STFS was statistically significantly shorter in NBI (p=0.002), but there were no statistically significant difference in CSRFS. Conclusions: NBI had made the bladder lesions detected early but had a low PPV for cancer recurrence within the bladder and there is no survival benefit.

지아장커 영화, 중국사회에 대한 비판적 성찰과 실험적 기록

서원태 ( Won Tae Seo ) 한양대학교 현대영화연구소 2010 현대영화연구 Vol.6 No.1

This study approaches the filmmaking methods of Jia Zhanke by analyzing the effects of changed china film industry and the principle of directing style in terms of form. So called `sixth generation` movement of china cinema is used for understanding a relationship between Jia Zhanke`s film and historical aspect of china cinema. And by analyzing the formal aspect of his film, we are able to figure out the personal style of his filmmaking and objectify the analyze method in a various way. Generally, Jia Zhangke`s directing method is based on the documentary style. however this is not a precondition of his filmmaking. The reason Jia Zhanke utilizes the characteristics of documentary filmmaking has been more than just using conventional language of documentary genre. Jia Zhangke`s documentary style is based on his way to observe society of china critically. The cinematic characteristics of Jia Zhanke`s film can be understood in these four context; observation and aboriginality, fictional expression for realistic description, contingency and improvisation, foregrounding of characters. Analysis based on these four elements gives possibilities to understand Jia Zhangke`s personal style of filmmaking beyond the general interpretation based on the `discussion of six generation movement`.

IoT기반의 택배안전 서비스에 관한 연구

서원태(Won Tae Seo),현병언(Byung En Hyun) 한국통신학회 2017 한국통신학회 학술대회논문집 Vol.2017 No.1

인공지능 기반 공용차량 IoT 환경감지 안전 서비스에 관한 연구

서원태(Seo Won Tae),권영훈(Kwon Young Hoon),안상민(Ahn Sang Min) 한국통신학회 2017 한국통신학회 학술대회논문집 Vol.2017 No.6

일본실험영화 미학 연구 -이토 다카시 영화에 나타난 구조적 경향연구-

서원태 ( Seo Won-tae ) 부산대학교 영화연구소 2016 아시아영화연구 Vol.9 No.1

이토 다카시(Ito Takashi)는 일본을 대표하는 실험영화 작가이다. 다카시의 실험영화에는 서구의 구조주의 영화에서 볼 수 있는 양식적 공통점이 관찰된다. 다카시의 영화가 서구의 구조주의 영화의 양식과 닮아 있으나 그 미학적 뿌리가 서구 실험영화사나 서구 아방가르드 예술사에 직접적으로 닿아있지는 않다. 다카시 영화에 나타난 양식적 외피와 그 이면의 실험영화 미학을 규정하기 위해서는 그의 영화를 작품자체 뿐만 아니라 개인적인 측면, 문화적인 측면과 연계하여 총체적으로 분석할 필요가 있다. 그의 미학적 성취는 작가 개인의 사진과 영화매체에 대한 관찰과 반복된 실험의 결과물이다. 다카시의 영화는 그 연대기적 시간차만큼이나 서구의 모더니즘 예술영화나 이른바 ``실험영화``들과 거리를 두고 있다. 환영주의에 기초한 주류영화 해체에 구조영화의 미학적 목표가 있다면 다카시의 영화는 해체가 아닌 숭고의 개념을 기초로 한 포스트모던적 성격에 기초해 있다. Ito Takashi is one of representative Japanese experimental film-maker. There is a common element between structural film and Takashi`s film in terms of style. Nevertheless, the root of Takshi film`s aesthetic is not based on the Western Avant-garde film history directly. To define the aesthetic of Takashi`s film, various analytical approaches are needed including individual aspect as an artist, cultural aspect and aesthetic analysis. Takashi`s film is far from the western Avant-garde film history from an aesthetic point of view. While structural film has aimed to destroy illusionistic realism of main stream feature films such as hollywood films, Takashi`s film is based on the post-modern characteristic of arts, which is the sublime.

빅데이터와 인공지능 기반의 한국형 물류센터 수요 예측에 관한 연구

서원태(Seo Won Tae) 한국통신학회 2020 한국통신학회 학술대회논문집 Vol.2020 No.8

건강 자원자에서 식도 운동 기능에 대한 sildenafil의 효과

서원태(Won Tae Seo),박효진(Hyo Jin Park),김정환(Jung Hwan Kim),지상원(Sang Won Ji),이상인(Sang In Lee),박인서(In Suh Park) 대한소화기기능성질환·운동학회 2002 Journal of Neurogastroenterology and Motility (JNM Vol.8 No.1

N/A Nitric oxide (NO), the nonadrenergic, noncholinergic inhibitory neurotransmitter, plays a role in controlling esophageal motor function by causing guanosine 3`, 5`-cyclic monophosphate (cGMP) accumulation in circular smooth muscle of the esophagus and lower esophageal sphincter (LES). Increase in the intracellular concentration of cGMP as a second messenger produces relaxation of smooth muscle. It is metabolized by phosphodiesterase (PDE). Sildenafil, a drug used to improve the functional impotence, shows an inhibitory effect on the smooth muscle cells of the human corpus cavernosum by blocking type V PDE that destroys cGMP. The aim of this study was to investigate the effects of sildenafil on the esophageal motility. Methods: Eight male subjects without any evidence of esophageal motor dysfunction were enrolled in this study. On first day, 20 ml of distilled water (placebo) was infused into the stomach. On second day, 0.8 mg/kg of sildenafil powder dissolved in water was infused into the stomach. We measured he amplitude of esophageal body contractions and LES pressure at each day. In addition, plasma cGMP levels were assayed by ELISA method. Results: There were no significant differences in esophageal manometric findings in the placebo group, but significant decreases in LES pressure as well as amplitude of peristaltic contractions at smooth muscle portion of esophagus were noted in sildenafil group. Sildenafil showed its maximum effect in lowering LES pressure on 30 minutes after ingestion, and also in decreasing the amplitude of peristaltic contractions at smooth muscle portion of esophagus on 15 minutes after ingestion. There was no difference in the propagation velocity of peristalsis and plasma cGMP levels after sildenafil treatment. Conclusion: Sildenafil showed inhibitory effects on smooth muscle of esophageal body and LES in human.(Korean Journal of Gastrointestinal Motility 2002;8:14-20)