Central spot formed in dried coffee-water-mixture droplets: Inverse coffee-ring effect

백지민,이창현,이주열 한국물리학회 2018 Current Applied Physics Vol.18 No.4

We have investigated the formation of central spot when coffee-water-mixture droplets are dried, which is a reverse effect of the famous coffee-ring effect (CRE). Typically, the central spot is unnoticeable or ignored even though it is significant. The ring-shaped stain is due to the capillary flow (CF). The CF is caused by the difference in the evaporation rates between the edge and the center of the droplet owing to a temperature gradient. The same temperature gradient, however, causes the so-called Marangoni flow (MF). The MF is routinely ignored, particularly when the solvent is water. However, from experiments, we found that, in addition to the ring-shaped stain formed by the CRE, central spot is formed. When the volume of a droplet of coffee-water mixture is ~15 μL, the strongest central spot is formed We employed an improved enhanced heat-transfer model, in which the shape of the droplet was assumed to be spheroidal, to understand the effects of the MF on the central-spot formation. According to the model, the formation of central spot can be explained, at least, semi-quantitatively. As a result of the existence of a stagnation point, the direction of flow is changed. Furthermore, the dependence of its location on the initial geometrical parameters of the droplet is very important. In addition, the effect of gravity was investigated for pendant droplets. The central-spot formation is more prominent in pendant droplets than in sessile droplets because the gravity enhances the MF in the pendant droplets, while it hinders the MF in the sessile droplets.

17세기 전반 한문소설의 지향과 의미

백지민 택민국학연구원 2011 국학연구론총 Vol.0 No.7

The intent of this thesis is to discuss and shed light on the literary features and meaning of Sino-Korean Novels wri -tten in the first half of the 17th century. The research was done focusing individually on Jeonkisoseol, the main current of pre to mid 17th century Sin-Korean Novel history, and th -e new appearance of Jeongyesoseol, during the 17th century Although a number of studies have been done on Jeonkisose -ol and Jeongyesoseol, the main patterns of literary work at this time, it seems as though something is lacking, in that t -hey don’t properly show the landscape of early 17th century Sino-Korean literature.I propose that early 17th century Sino -Korean novels have a close relationship with social and hist -orical aspects of the period, such as variable succession, tra -nsfiguration, and negotiation customs. Hence, I chose to re -evaluate the value of Sino-Korean novels by closely observ -ing the author’s recognition of reality and motive in their works. The novels analyzed in this thesis include <Joosengjeon> <Choicheokjeon><Yuyeonjeon><Namgoongsunsaengjeon><Ganlojeon><Ansangseojeon> which were written in the early 17th century after the invasion, and known for their distinct authors. These works of literature are considered to form a bridge, highlighting the inner changes of each genre eventua -lly leading to the birth of a new genre later in the history of Sino-Korean novels. In this regard, this thesis strives to analyze the results caused by the inner and outer transfigura -tion of Sino-Korean novels, including negotiation customs, and advance this field of study one more step in the directi -on of true understanding. 본고는 17세기 전반 한문소설의 지형을 살펴보고 그 지향과 의의를 밝히는 데 목적이 있다. 17세기 전반에는 초기 소설사의 주류로 명맥을 이어온 전기소설이 발전적으로 변모하는 모습을 보이며 절정기를 맞이하였다. 그러나 한편으로는 전기소설 본연의 특성이 시대적 요구에 부응하지 못하여 점차적으로 쇠퇴하는 모습을 보이고 있다. 그리고 17세기에 새로이 등장한 전계소설이 전기소설과 영향관계를 맺으며 소설사에 부상하게 되었다. 17세기 전반 한문소설에 대한 기존의 논의들은 유형별 변모의 양상만을 단면적으로 살피거나 혹은 개별 작품론을 중심으로 진행되어, 17세기 한문소설사의 지형을 제대로 보여주지 못한 것으로 판단하였다. 본고는 17세기 전반 한문소설에 나타난 전기소설과 전계소설의 계승ㆍ변모ㆍ교섭 양상이 17세기 사회ㆍ역사적 측면과 매우 밀접한 관련을 맺고 있다고 보고, 작품에 나타난 작가의 현실인식과 창작의도 등을 살핌으로써 이 시기 한문소설이 가지고 있는 가치를 재평가하고자 한다. 본고의 직접적인 대상은 임란 이후 17세기 전반에 창작된 한문소설로 작자가 명확하게 알려진 <주생전>ㆍ<최척전>ㆍ<유연전>ㆍ<남궁선생전>ㆍ<강로전>ㆍ<안상서전> 등 이다. 이 작품들은 전대의 작품들에서 축적된 소설사적 역량을 토대로 각각 양식 내부의 변모와 새로운 양식의 탄생을 가져오게 되었으며, 후대 소설의 시대를 발현시키는 교량적 역할을 하였다고 여겨진다. 따라서 17세기 전반 한문소설 내ㆍ외부의 변모와 교섭에 초점을 맞추어 작품을 분석하고 그 결과를 해석하고자 하는 이 논문은 방대하지만 산재되어 있는 기존의 연구 성과를 종합ㆍ심화하여 이 분야의 연구를 한 걸음 진척시킬 수 있을 것으로 기대한다.

조선 후기 고소설에 나타난 불구(不具)의 서사적 형상: 죄와 벌

백지민 전남대학교 한국어문학연구소 2024 전남대학교 한국어문학연구소 학술지 어문논총 Vol.- No.45

본 논문은 조선 후기 고소설에 나타난 불구 인물의 서사적 형상을 ‘죄와 벌’의 관점에서 분석하여 그 문학적 의미와 사회적 함의를 고찰하고자 했다. 조선 후기 고소설에서는 인물의 외모와 성격이 직접적으로 연결되고, 이에 따른 선과 악의 구분이 명확하게 드러나는 경우가 많았다. <한후룡전>과 <유화기연>에서는 전생의 죄로 인해 신체적 결함을 가지고 태어난 주인공들이 등장한다. 한후룡은 시각 장애를, 임허영은 다리 장애를, 유춘은 성불구자로 태어난다. 이들은 불구의 몸으로 인해 가족에게 괴로움과 불편을 끼치지만, 선업을 쌓아 신체적 결함을 극복하여 완전한 신체를 회복하고 영웅으로 거듭난다. 이를 통해 불구를 극복의 대상으로 삼는 인식과 도덕적 성장의 중요성을 강조하고자 하였음을 확인할 수 있었다. 반면, <장화홍련전>에서는 후천적으로 불구가 되는 인물인 장쇠가 등장한다. 장쇠는 부친의 명에 따라 누이를 죽이는 데 일조하는데, 그 과정에서 스스로의 악독함을 드러내었다. 장쇠는 결국 호랑이에게 두 귀와 한쪽 팔, 한쪽 다리를 물려 불구가 된다. 이는 장쇠의 악행에 대한 천벌로, 불구가 단순한 신체적 결함이 아니라 도덕적 타락의 결과로 내려진 벌임을 강조한다. 이는 불구가 개인의 신체적 결함을 넘어서 사회적, 도덕적 맥락에서 이해되고 있었음을 시사한다. 이와 같이 고소설에서 불구 인물의 서사적 형상은 당시 사회의 도덕적 기준과 장애에 대한 인식을 반영한다. 불구는 전생의 죄나 악행의 결과로 묘사되며, 이는 불구 인물을 통해 선과 악의 구분을 명확히 하고, 도덕적 교훈을 전달하는 서사적 장치로 사용되었다. This paper aims to analyze the narrative portrayal of disabled characters in late Joseon Dynasty novels from the perspective of "sin and retribution" to explore their literary significance and social implications. In these novels, characters' appearances are often directly linked to their personalities, resulting in a clear distinction between good and evil. In "Hanhuryongjeon" and "Yuhwagiyun" the protagonists are born with physical disabilities due to sins committed in their previous lives. Han Hu-ryong is born with a visual impairment, Im Heo-yeong with a leg disability, and Yu-chun as a eunuch. Despite causing distress and inconvenience to their families due to their disabilities, these characters accumulate good deeds, overcome their physical limitations, and eventually restore their complete bodies, transforming into heroes. This narrative emphasizes the perception of overcoming disabilities as a path to moral growth and the importance of virtuous actions. Conversely, in "Janghwahongryeonjeon" there is a character named Jang-soe who becomes disabled later in life. Jang-soe assists in killing his sister following his father's orders, revealing his own cruelty in the process. Eventually, Jang-soe is attacked by a tiger, which bites off his ears, one arm, and one leg, resulting in his disability through the mauling. This is depicted as divine punishment for his evil deeds, emphasizing that his disability is not merely a physical defect but a consequence of moral corruption. This suggests that disabilities were understood within a broader social and moral context, beyond just physical impairments. Thus, the narrative portrayal of disabled characters in these novels reflects the moral standards and perceptions of disability in late Joseon society. Disabilities are depicted as the result of sins or evil actions, serving as a narrative device to clearly distinguish between good and evil and to convey moral lessons.

조선시대 공론의 문학적 형상화- <원생몽유록>을 중심으로

백지민 전남대학교 한국어문학연구소 2024 전남대학교 한국어문학연구소 학술지 어문논총 Vol.- No.44

This paper examines the process of how public discourse during the Joseon Dynasty was literarily depicted, focusing on WonsaengMongyurok. This work allegorically represents the rehabilitation of King Danjong and the Six Martyred Ministers. In the Joseon Dynasty, public discourse played a crucial role under the Confucian political system, acting as a significant tool in checking the monarch's arbitrariness in the political process. Public discourse was a key concept in Joseon's political foundation, occupying an important position within the triangular structure of royal power, ministerial power, and Eon-gwan power. It simultaneously served as a symbol of the power of ministers to restrain royal authority and functioned as a means for internal checks, balances, and competition. Through public discourse, a variety of political views were presented, and policies were implemented through intense competition. WonsaengMongyurok goes beyond expressing resentment about historical events; it is a work that exercised the right to express opinions as a practical act of publicizing issues. The paper explores how literature established itself as a new discursive power through the workings of Joseon public discourse. According to the principles of public discourse politics, the king, as the supreme authority, significantly influenced the formation and acceptance of public discourse. Therefore, there was a need for alternative means to publicize issues that contradicted the king's will. WonsaengMongyurok served as an alternative space for expressing sensitive political opinions during such times, attempting to publicize issues through literary depiction in dreams. It played a role in diagnosing the problems of the political situation at the time, presenting opinions, and triggering public discourse. This confirms that literature transcended mere storytelling to play a crucial role in forming and disseminating social and political opinions.

치과위생사의 역할스트레스가 직무소진 및 이직의도에 미치는 영향: 전문직정체성의 조절된 매개효과

백지민,지재훈 한국구강보건과학회 2023 한국구강보건과학회지 Vol.11 No.3

Objectives: This study aimed to test the causal relationships among role stress, job burnout, professional identity, and turnover intention for dental hygienists. Methods: Data were collected from dental hygienists working in dental clinics located in the Busan area using a structured questionnaire. The final sample size was 142, and SPSS ver.27 and Process Macro 4.1 were used to analyze the data. Results: Role stress of dental hygienists had a positive effect on job burnout and turnover intention, and indirectly through job burnout. On the other hand, the moderating effect of professional identity on the effect of role stress on job burnout and turnover intention was statistically significant. Conclusions: Establishing a professional identity for dental hygienists can reduce turnover intentions.

순절 담론의 서사화, <강도몽유록>

백지민 전남대학교 인문학연구소 2016 용봉인문논총 Vol.- No.49

병자호란 시 순절한 여인들의 이야기를 담고 있는 <강도몽유록>을 순절 담론의 서사화라는 측면에서 조명하고자 하였다. 기존 연구에서는 <강도몽유록>을 무능력한 지배세력·공신세력·남성들에 대한 비판의 텍 스트로 읽거나 자기변호의 텍스트로 읽는 등 어떤 일관된 태도를 표명 하는 작품으로 해석하였다. 필자는 <강도몽유록>을 통해 읽어내야 할 목소리는 단일한 것이 아니라 다양한 목소리의 공존이며, 특히 순절을 둘러싼 다양한 입장과 상황을 제시하여 당대의 실상을 그리고 있는 것 으로 보았다. 이를 위해 먼저 병자호란과 관련된 순절에 대한 공적·사적 기록들을 살펴보았다. 순절은 역사적 차원에서는 숭고하고 빛나는 행위 지만, 개인적 차원에서는 안타까운 희생이기도 하다. 그러나 병자호란 후 순절에 대한 공적·사적 기록들에서는 미덕으로 포장된 일면만이 나타 날 뿐이다. 나아가 순절하지 못한 인물에 대한 비판이 거세었고, 생존한 사람들은 죽지 못한 것이 자의에 의한 것이 아니었음을 변호해야만 했 다. <강도몽유록>의 꿈속에서 발언하는 14명의 여인은 모두 순절한 인 물들이지만, 순절에 대한 그들의 입장은 각기 다르다. <강도몽유록>은 공적·사적 기록들에 쓰이지 못했던 순절을 둘러싼 여러 상황과 다양한 입장을 병자호란 시 순절한 여인들의 목소리를 통해 형상화하고 있다. <강도몽유록>에서 보이는 순절의 이념 자체는 긍정적인 것이다. 그러나 순절의 실제가 개인적 차원을 벗어나 정치적 차원에서 공론화되는 경우 에 파생되는 실상들까지 형상화하여, 생존자였던 작가가 일정 부분 스스 로를 변호하고자 했지만 그 과정에서 17세기 병자호란 당시의 참혹하고 비참한 기억의 형상화와 함께 전쟁 후의 공론까지 다양한 면모를 그리 게 되었음을 살필 수 있다.

레이아웃 유형에 의한 각 도시별 스마트버스정류장 디자인에 관한 연구

백지민,김동식 한국실내디자인학회 2023 한국실내디자인학회논문집 Vol.32 No.6

Buses are highly used as a means of public transportation that can be used even in cities where urban railroads do not pass, but there are problems in terms of comfort and safety, such as be exposureed directly and indirectly to smoke and fine dust while waiting. Recently, as a solution to urban problems caused by urbanization, smart bus stops are being built in each region of the project to spread smart city solutions conducted by the Ministry of Land, Infrastructure, and Transport. Smart bus stops provide a convenient and safe environment by introducing various technologies and facilities to provide better services to public transportation users. However, even though smart bus stops are public facilities, there are no specific guidelines, and most regions simply purchase and install commercialized products other than smart city solutions. Therefore, this study aims to identify problems with smart bus stops and analyze the relationship between smart bus stops and various street facilities to find improvement direction. Finally, the purpose is to present efficient layout and suggestion of environmental improvement plan in terms of public facilities rather than focusing only on specific functions, which is meaningful in that it can be used as a basis and consideration for future application of smart bus stops.

<양산백전>에 나타난 꿈의 양상과 기능

백지민 한국언어문학회 2024 한국언어문학 Vol.127 No.-

This study explores the various aspects and functions of dreams as depicted in Yangsanbaekjeon. It classifies the aspects of dreams according to the characters involved and the nature of the dreams, and examines their functions by dividing them into spaces for communication and spaces for expressing internal conflicts. Dreams, as traditional elements of classical narratives, serve as a realm where impossible events in the real world can be actualized. They act as spaces for communication, featuring sacred beings that facilitate essential developments in the story through prenatal dreams, prophetic dreams, and revelatory dreams. Additionally, dreams serve as spaces for expressing internal conflicts, where the superego, controlling the protagonist's secular desires, presents inner conflicts as fantasies. This enriches the communication and emotional depth among characters and plays a crucial role in the progression of events. The plausibility of the protagonist's love, which is nearly impossible to achieve in the real world, is bolstered through the dream space, supplementing what cannot be explained in reality. By revealing the characters' innermost desires and inner turmoil through dreams, and emphasizing the theme of fateful love aided by divine beings, the narrative gains depth and vibrancy

이주여성 인권 현실과 지역사회 역할

백지민,정승희,하숙자 (재)청주복지재단 2019 청주복지포럼 Vol.2 No.0

고전산문 설(說)을 활용한 성찰적 글쓰기 교육 - 이곡의 “차마설”을 중심으로 -

백지민 한국문화융합학회 2023 문화와 융합 Vol.45 No.8

This study aims to propose the possibilities and approaches of using the traditional literary form of "seol" in reflective writing education. Seol works depict the process of expanding insights gained from everyday experiences to universal truths, making them valuable resources for reflective writing. The focus of this research is to present a reflective writing curriculum using the seol "Chama-seol." By analyzing the themes and delivery methods of the work, the study suggests ways in which learners can apply these techniques to their own writing and considers factors such as feedback from instructors and peers. Throughout this process, it was confirmed that seol works, among classical literature, can be highly beneficial for reflective writing education. Utilizing classical literature provides an opportunity to revitalize the value of classical translations and enable creative continuity. Through this approach, learners can enhance their ability to identify personal issues, cultivate humanistic knowledge, and improve their capacity to think critically and express themselves within diverse cultural and social contexts. Moreover, implementing the proposed methods from this study can maximize the effectiveness of reflective writing education. Based on these educational implications, utilizing classical literature, especially seol works, in reflective writing education is expected to be highly advantageous and beneficial, offering a valuable educational approach.