• Proceedings of the Korea Water Resources Association Conference
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• 2022.05a
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• pp.481-481
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• 2022

본 연구에서는 기후 변화 완화에 대한 잠재력을 평가하기 위해 국내에서 가장 우세한 소나무 종인 Pinus densiflora의 기후변화에 대한 반응을 평가하였다. 기후변화의 시나리오로 4가지 대표 농도경로(RCP)에 기반 하여 CO₂, 강수량, 온도의 변화를 개별 및 조합하였다. 생태수문학적 및 지구화학적 모델인 ecosys를 활용 및 보완하여 광릉 시험림에 적용하였다. 본 연구에서는 대기 중 CO₂ 증가가 총일차생산량(GPP)과 순일차생산량(NPP)에 미치는 긍정적인 영향이 강수량과 기온 변화로 인한 부정적인 영향보다 더 큰 것으로 나타났다. 특히, 기준 시나리오와 비교하여 각각 RCP2.6, 4.5, 6.5, 8.5에서 3.79%, 13.44%, 18.26%, 28.91%의 NPP 개선이 모의되었다. 또한, 본 연구에서는 지표하 질소 유출과 지표 N₂O 플럭스가 기후 변화가 심해짐에 따라 소나무 생장 향상 및 토양 수분 저하로 인하여 토양 질소 손실 감소가 모의되었다. 기후변화의 강도가 증가함에 따라 증발산량이 증가하였지만, 기공 감소는 토양에서 흡수하는 물이용 및 광합성 효율 증진을 가져왔다. 이러한 결과는 소나무가 기후 변화를 완화하는 환경 친화적인 선택으로 작용할 수 있는 잠재성을 나타낸다.

• The Journal of Korean Physical Therapy
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• v.5 no.1
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• pp.25-37
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• 1993

This study was conducted to investigate an attitude related to physical therapy students's clinical practice, a questionnaire survey was carried out for 101 third grader(Taegu Junior Health College 66, Andong Junior College 35) from 11th of January to 22th of March. The results are as follow : A. Frequency classified by item 1. Among preconception and anxiety on the clinical practice, a shortage of knowledge$(83.2\%)$ was the highest. 2. Among expectation on the clime practice, the chance to meet patients directly$(94.1\%)$ was the highest. 3. Among anxiety after students experienced clinical practice, a shortage of knowledge$(82.2\%)$ was the highest. 4. Among satisfaction after students experienced clinical practice, after students graduated college, they will maintain physical therapist's life continuously$(71.3\%)$ was the highest. B. The variables that showed statistical difference between general characteristics and variables classified by item are as follow : 1. Between sex and anxiety after students experienced clinical practice, girl-students$(86.7\%)$ showed higher rate than man-students$(61.1\%)$ in, a shortage of knowledge(P<0.01). 2. Between religion and expectation on clinical practice, religionists$(65.1\%)$ showed higher rate than nonreligionists $(44.8\%)$ in the chance to practice love for humanity(P<0.05). 3. Between religion and anxiety after students experienced clinical practice, religionist$(65.1\%)$ showed higher rate than nonreligionist$(56.9\%)$ in not unskillful counsel patients(P<0.01). 4. Between religion and satisfaction after students experienced clinical practice, religionist$(81.4\%)$ showed higher rate than nonreligionists$(63.3\%)$ in pride of major choice(P<0.01). 5. Between hospitalization experience of family and exportation on clinical practice, students who had hospitalization experience of family$(79.7\%)$ were higher rate than unexperienced students's$(62.2\%)$ in the chance to apply knowledge(P<0.05). 6. Between hospitalization experience and satisfaction after students experienced dime practice, students who had hospitalization experience$(68.4\%)$ were higher rate than unexperienced students's$(45.1\%)$ in settlement of anxiety(P<0.05). 1. Between choice motive of physiotherapy(PT) department and expectation on clinical practice, self-will students $(80.5\%)$ showed higher rate than other-will students's $(66.7\%)$ in rejoining participate in treatment(P<0.01). 8. Between choice motive of physiotherapy department and anxiety after students experienced clinical practice, self-will students$(74.0\%)$ showed higher rate than lither-will students's $(58.3\%)$ in the wish PT-job in the future(P<0.05). 9. Between choice motive of physiotherapy department and satisfaction after students experienced clinical practice, self-will students$(75.3\%)$ showed higher rate than other-will students's$(58.3\%)$ in pride on major in physical therapy(P<0.05). It was revealed by this survey that girl-students had higher anxiety than man-students in anxiety after students experiences clinical practice, self-will student had higher satisfaction higher than other-will student in the choice of physiotherapy department.

• Journal of Korea Entertainment Industry Association
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• v.13 no.4
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• pp.271-281
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• 2019

The purpose of this study is to provide basic data for improving the adaptability of college life by examining the effects of individuality and relationship of university freshmen on college life adaptation. The study subjects were 383 freshmen enrolled in a university in Chungbuk C City, and a multiple regression analysis was conducted to examine the factors of impact. The first study found that boys were more individual in genders, depending on the general characteristics. Extroverted students were more relational. In the majors, students in the humanities and social sciences were more related, and students in the natural engineering department were more individual. Second, the lower factors affecting college students' adaptation to college life were found to be autonomous in individuality, and affinity and intimacy in relation. In particular, autonomy has the greatest impact on adaptation to college life, followed by affinity and intimacy. Based on these results, policy suggestions are needed first, it is necessary to balance and balance individuality and relationship. second, it is necessary to create activities and learning environments that you can choose for yourself. third, it is necessary to develop programs to promote affinity and intimacy such as department events and club activities. fourth, emotional and psychological program support through face-to-face contact should be activated to improve individuality and relationship.

• Korean Medical Education Review
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• v.14 no.2
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• pp.69-77
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• 2012

The purpose of this study was to investigate the differences between medical college students and graduate school students with regard to the factors that shape career choice and specialty indecision. One hundred and thirty-three students from a medical school participated in this study. The students completed a survey, which collected information on career choice, specialty indecision, and career adaptability. Significant differences were found between high and low career adaptability groups in factors that affected specialty choice and indecision. Students with high career adaptability were significantly more affected by 'intellectual content of specialty,' 'ages and characteristics of patients,''patient contact experience during the early years of medical school,' and 'greater opportunity for research.' Among the specialty indecision factors, students with high career adaptability were affected by 'several specialties equally appealing to me' and 'many interests,' while students with low career adaptability were affected by being 'unaware of my abilities,''unaware of my interests' and having 'learned my choice was not possible for me.' The factor having the greatest influence on specialty indecision was 'need more information and support,' and there were no significant differences in these factors between the two groups. The results suggest that the development of career counseling and education programs need to be designed for medical college students and graduate students in terms of career adaptability and specialty indecision.

• Journal of dental hygiene science
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• v.5 no.4
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• pp.185-189
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• 2005

This research is about influence on academic motivation and satisfaction of college life by Dong-A-Ry activity in students on department of dental hygiene. The results of the study were as follows: 1. The relationship between academic motivation and Dong-A-Ry activity was found to a positive relationship with ${\alpha}$ <0.05 in analysis of variance, which shows that correlation between variables are significantly high. 2. The relationship between satisfaction of college life and Dong-A-Ry activity was found to a positive relationship with ${\alpha}$ < 0.05 in analysis of variance, which shows that correlation between variables are significantly high. 3. This research suggests that students obtain the experience of group activity which is difficult to approach by regular curricular activity. As a result, to improve the highly motivated study and the better satisfaction in college life, Dong-A-Ry activities are needed. And Dong-A-Ry activity can be efficiently facilitated by active participants, efficient program development, facilitator's leadership and so on.

• FLOWER RESEARCH JOURNAL
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• v.16 no.2
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• pp.93-101
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• 2008

Research materials used were 55 kinds of flower teas proven in medicinal efficacy based on publications in oriental medicinal science. Efficacy in oriental medical science of the selected plants was classified into 11 groups, exterior-relieving herbs, removing dampness by promoting diuresis herbs, heatclearing herbs, purgative herbs, tonic herbs, qi-activating herbs, herbs as blood-tonics, herbs warming the intestine, qi-regulating herbs, herbs for removing dampness by means of aromatics, and herbs activating blood. Moreover, they were assorted by fever (hot, warm, slightly warm, common, cool, and cold), flavor (sweet, bitter, spicy, sour, and salty), and toxicity (toxic or nontoxic). Generally, flower teas have been known to be drinkable by all people. However, it is important to select proper flower teas considering physical constitution and health condition of the individual. One should be cautious in drinking flower teas containing toxic ingredients and weak people should be prohibited drinking them. Further clinical study on efficacy of flower teas will contribute to commercialization of these teas.

• KIPS Transactions on Software and Data Engineering
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• v.10 no.1
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• pp.35-44
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• 2021

Recent advances in the 4th Industrial Revolution have accelerated the change of the working environment, such that the paradigm of education has been shifted in accordance with career education including the free semester system and the high school credit system. While the purpose of those systems is students' self-motivated career exploration, educational limitations for teachers and students exist due to the rapid change of the information on education. Also, education technology research to tackle these limitations is relatively insufficient. To this end, this study first defines three requirements that education technologies for the career education system should consider. Then, through data-driven artificial intelligence technology, this study proposes a data system and an artificial intelligence recommendation model that incorporates the topics for career exploration, courses, and majors in one scheme. Finally, this study demonstrates that the set-based artificial intelligence model shows satisfactory performances on recommending career education contents such as courses and majors, and further confirms that the actual application of this system in the educational field is acceptable.

• Membrane Journal
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• v.32 no.6
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• pp.401-410
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• 2022

Demand for lithium hydroxide (LiOH) is annually increasing due to its efficiency and safety for the environment in comparison to its current alternatives. Lithium can be found in different salty and brine lakes which later synthesized to produce LiOH for various applications. Different methods are used to separate and recover lithium ions, the most common of which is electrodialysis (ED). ED is a membrane-based separation technique which works on potential difference of its layers as a driving force to push ions from one side to another. The ion exchange membrane (IEM) in ED makes the process efficient because of the perm selectivity of different ions vary depending on their hydrodynamic volume. In this review, the different alteration strategies of both ED and IEM, to enhance the recovery of lithium ions are discussed.

• Journal of the Korean Chemical Society
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• v.61 no.6
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• pp.369-377
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• 2017

The purpose of this study was to investigate high school students' perceptions on chemistry subjects: reasons for choosing chemistry, learning volume and content difficulty, interests, teaching/learning methods, preferable classes etc. A total of 1,087 students who took chemistry subjects at 126 high schools by proportional stratified sampling were voluntarily participated in the survey. The main reasons the students chose chemistry subjects were interests and interests in chemistry, foundation to science, relevance to college majors, and so on. Students recognized that the learning volume and content difficulty as normal level was about 60%. Reasons why chemistry was difficult was that, although there was a difference in degree, chemistry was difficult in itself and had too much things to memorize. In the case of interests in chemistry subjects, students of 43.9% of Chemistry I and 52.0% of Chemistry II recognized the level as normal. The reason why not interested in chemistry subjects was that it was the nature of chemistry contents, or students had neither interests and enjoyment of chemistry nor foundation for chemistry. Classes were mostly lectures but the students preferred mainly experimental activities, or explanation with real-life examples or science stories. The frequency of experimental activities was found to be 1 to 5 times per semester, or not experimented. Research and efforts will be necessary to improve classes and environments for students' experimental activities.

• Membrane Journal
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• v.33 no.4
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• pp.149-157
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• 2023

Covalent organic frameworks (COFs) have shown promise in various applications, including molecular separation, dye separation, gas separation, filtration, and desalination. Integrating COFs into membranes enhances permeability, selectivity, and stability, improving separation processes. Combining COFs with single-walled carbon nanotubes (SWCNT) creates nanocomposite membranes with high permeability and stability, ideal for dye separation. Incorporating COFs into polyamide (PA) membranes improves permeability and selectivity through a synthetic interfacial strategy. Three-dimensional COF fillers in mixed-matrix membranes (MMMs) enhance CO₂/CH₄ separation, making them suitable for biogas upgrading. All-nanoporous composite (ANC) membranes, which combine COFs and metal-organic framework (MOF) membranes, overcome permeance-selectivity trade-offs, significantly improving gas permeance. Computational simulations using hypothetical COFs (hypoCOFs) demonstrate superior CO₂ selectivity and working capacity relevant for CO₂ separation and H₂ purification. COFs integrated into thin-film composite (TFC) and polysulfonamide (PSA) membranes enhance rejection performance for organic contaminants, salt contaminants, and heavy metal ions, improving separation capabilities. TpPa-SO₃H/PAN covalent organic framework membranes (COFMs) exhibited superior desalination performance compared to traditional polyamide membranes by utilizing charged groups to enable efficient desalination through electrostatic repulsion, suggesting their potential for ionic and molecular separations. These findings highlight COFs' potential in membrane technology for enhanced separation processes by improving permeability, selectivity, and stability. In this review, COF applied for the separation process is discussed.