본 연구는 코칭 슈퍼바이저가 인식하는 슈퍼비전 역량의 유형과 특성을 살펴 보기 위해 Q 방법론을 적용하여 연구를 수행하였다. 코칭 슈퍼비전 역량에 관한 Q 모집단을 구성한 후, 40개의 비구조화된 Q 표본을 선정하였고, 코칭 슈퍼비전 교육을 이수한 13명의 전문 슈퍼바이저를 P 표본으로 선정하였다. 40개의 진술 문을 강제 분포 방식으로 Q 분류를 진행한 후 Ken-Q Analysis 프로그램을 통 해 자료를 분석하였다. 분석 결과, 코칭 슈퍼바이저들이 인식하는 코칭 슈퍼비 전 역량은 3가지 유형으로 분류되었고, 제1유형은 ‘슈퍼비전 마인드셋’을 중시하 는 유형, 제2유형은 ‘슈퍼비전 관계’를 중시하는 유형, 제3유형은 ‘슈퍼바이저 전 문성’을 중시하는 유형으로 나타났다. 연구 결과에서 제시한 바와 같이 코칭 슈 퍼바이저는 슈퍼비전 마인드셋을 갖추고, 좋은 슈퍼비전 관계를 유지하며, 전문 성을 갖추는 것이 중요하다는 것을 확인할 수 있다. 본 연구를 통해 살펴본 코칭 슈퍼비전 역량 인식을 바탕으로 추후 코칭 슈퍼비전 역량의 구성 요인을 탐색하 고, 척도를 개발하거나, 슈퍼비전 역량을 강화하기 위한 프로그램을 개발하고, 슈퍼비전의 효과성을 검증하는 다양한 연구가 진행되기를 기대한다.

A cyclone separator is a device that separates solid particles from a fluid using centrifugal force and gravity in its inner chamber. Among cyclone separators, the separator that uses water as a working fluid is called as hydrocyclone separator, which has been developed for the purpose of dehydrating solid mixtures with a proportion of solids floating in liquids greater than 1, such as soil, coal, and cement slurry. In this paper, a hydrocyclone was designed based on the previously proposed design method, and how different the performance is from the targeted value was investigated using the computational fluid dynamics.

본 연구의 목적은 한국 중년 여성의 자녀 결혼 경험을 현상학적 방법으 로 분석하여 그 경험의 본질적 의미를 파악하기 위한 것이다. 이를 위하 여 본 연구에서는 자녀의 결혼을 경험한 50대와 60대 한국의 중년 여성 들을 대상으로 심층 면담을 진행하였고 참여자들의 생생한 일상적 경험 의 본질 구조를 드러내기 위해 Giorgi의 현상학적 방법을 사용하여 분석 하였다. 연구 결과 205개의 의미 단위, 33개의 주제, 14개의 주제묶음, 7개의 범주가 도출되었다. 도출된 7개의 범주는 ‘자식의 새로운 보호자 가 생김’, ‘나의 과거와 미래의 삶을 바라봄’, ‘자식을 품에서 떠나보냄’, ‘나를 과시하고 싶음’, ‘자식에 대한 나의 마지막 과제를 마침’, ‘새로운 가족에 대한 적응’, ‘자식에서 남편으로의 회귀’이다. 본 연구는 그동안의 연구에서 한국 중년 여성의 자녀 결혼에 따른 정서가 부정적인 것으로 나타났던 것과 달리 한국 중년 여성들은 새로운 가족을 맞아들임, 기쁨, 홀가분함 등의 긍정 정서를 느끼게 되고, 자녀와의 심리적·물리적 분리를 이루며, 새로운 가족을 받아들여 적응하는 한편 자신 곁에 남은 남편과 의 삶을 준비하는 등 자신의 지나온 삶을 정리하고 남아 있는 삶을 재정 비해 나간다는 본질적 의미를 밝혀냈다는 데 의의가 있다.

This study focused on improving the solubility of silodosin, a drug poorly soluble in water, by utilizing solid dispersions. Three types of dispersions were examined and compared against the drug powder: surface-attached (SA), solvent-wetted (SW), and solvent-evaporated (SE). Polyvinyl alcohol (PVA) was identified as the most effective polymer in enhancing solubility. These dispersions were prepared using spray-drying techniques with silodosin and PVA as the polymer, employing solvents such as water, ethanol, and a water-acetone mix. The physicochemical properties and solubility of the dispersions were evaluated. The surface-attached dispersions featured the polymer on a crystalline drug surface, the solvent-wetted dispersions had the amorphous drug on the polymer, and the solvent-evaporated dispersions produced nearly round particles with both components amorphous. Testing revealed that the order of improved solubility was: solvent-evaporated, solvent-wetted, and surface-attached. The results demonstrated that the preparation method of the solid dispersions significantly impacted their physicochemical properties and solubility enhancement.

본 연구는 최근 7년간 Google scholar, ProQuest에서 Adolescent Idiopathic Scoliosis(AIS), Cobb’s angle, Surgical, Conservative, In tervention을 핵심 키워드로 활용하여 청소년 특발성 척추측만증의 수술 적 중재 방법과 보존적 중재 방법이 Cobb’s angle에 미치는 영향을 조 사하였다. 중재 전ㆍ후 Cobb’s angle 차이를 JAMOVI를 이용하여 메타 회귀분석을 실시하였으며 청소년 특발성 척추측만증 환자에게 Cobb’s an gle 긍정적 변화에 효과적인 중재 방법은 수술적 중재 방법에는 Selectiv e thoracic fusion, Posterior spinal fusion, Anterior spinal fusion 이 있었으며, 보존적 중재 방법에는 Lumbar cheneau brace, Xinmiao treatment system(XTS), Cheneau brace+Schroth best practice(S BP), Core stabilization exercises가 있음을 확인하였다. 이러한 연구 결과를 통하여 청소년 특발성 척추측만증 연구 분야의 방향성 제공에 도 움을 주고 향후 어떠한 중재 방법이 효과적일지 판단할 수 있는 지표개발 을 요구하는 바이다.

In this study, in order to develop an foaming tablet product using yuzu powder, yuzu powder was manufactured using different drying methods such as freeze-drying, 60℃ drying, and 40℃ drying, and then quality characteristics and functionality were analyzed. The naringin content per g of yuzu powder was 8.9 mg for freeze-drying and 8.8 mg for 60℃ drying, and the hesperidin content per g of yuzu powder was highest at 53.6 mg for freeze-drying and 46.2 mg for 60℃ drying. followed by 40℃ drying (41.7 mg). The tyrosinase inhibitory activity of 60℃ dried powder was found to be twice as high as that of freeze dried powder. Accordingly, in order to develop an inner beauty product, foaming tablets were manufactured using hot air dried powder, and the quality characteristics and functional ingredients of the final foaming tablets were investigated. The foaming tablet prepared with yuzu powder content of 10 and 15% showed an inhibitory activity of tyrosinase of 73.7 %, which was 1.6 times higher than that of ascorbic acid (1 mM), which was a positive control, confirming its melanin production inhibition effect.

This study was conducted to estimate the effects of the forage process on rumen fermentation characteristics and greenhouse gas emissions of rye. Rye was grown at the Taeyoung Livestock farm and harvested at the heading stage. The harvested rye (5 kg) was sub-sampled for fresh forage, hay, and silage in triplicates. The sub-sampled rye was freeze-dried or air-dried for fresh forage or rye hay, respectively. For rye silage, the sub-sampled rye forage was ensiled into a 10 L mini bucket silo and stored for 90 days. For 72 h rumen incubation, each forage (0.3 g) was placed into the incubation bottle with the rumen mixture (30 mL) in quadruplicates. After the incubation, total gas was measured and sub-sampled for CO2 and CH4 analyses, and the bottle content was centrifuged for in vitro digestibilities of dry matter (IVDMD) and neutral detergent fiber (IVNDFD), and rumen fermentation characteristics. Silage had higher crude protein, crude ash, and acid detergent fiber concentrations than fresh forage and hay but lower non-fiber carbohydrates and relative feed value (p<0.05). And, silage had higher lactic acid bacteria than the other forages but lower pH (p<0.05). After 72 h incubation in the rumen, fresh forage had higher IVDMD and butyrate content than the other forages (p<0.05). However, silage had higher rumen pH and propionate content than the other forages but lower A:P ratio (p<0.05). Regarding greenhouse gases, silage had lowest total gas (mL/g DMD and NDFD) and CH4 (mL/g DMD and NDFD) emissions, while fresh forage had lowest CO2 (mL/g DMD) emission (p<0.05). Therefore, this study concluded that the ensiling process of rye can effectively mitigate greenhouse gas emissions of Hanwoo.

Purpose: The global emphasis on preventing and systematically managing acute cardiac arrest necessitates improved education in cardiovascular emergencies. This study aims to provide foundational data on the effectiveness of simulation-based cardiovascular emergency management education, applying the think-aloud method for nurses. Method: A one-group pre-posttest experimental design was used from July 29 to August 15, 2022. Twenty-eight nurses participated in this study. Data were analyzed using descriptive statistics and the Wilcoxon signed-rank test with SPSS/WIN 25.0. Results: The educational intervention showed statistically significant improvements in outcomes: knowledge of cardiovascular emergency management (Z=-4.24, p<.001), confidence in cardiovascular emergency management (Z=-4.63, p<.001), clinical reasoning competence (Z=-4.16, p<.001), and self-efficacy for group work (Z=-3.47, p=.001), and selfregulation for group work (Z=-2.29, p=.022). Conclusion: This study indicates that the use of the think-aloud method in simulation-based learning can effectively enhance cardiovascular emergency management training by reducing learners’ cognitive load. Cardiovascular emergency management competencies can be strengthened through the development of diverse educational strategies and the expansion of training support.

PURPOSES : This study aims to provide quantitative profile values for the objective evaluation of concrete surface profile (CSP) grades in concrete structures. The main aims are to quantify the CSP grade required for concrete surface pretreatment and proposing a more suitable CSP grade for structural maintenance. METHODS : Initially, the challenges in measuring concrete surface profiles were outlined by analyzing pretreatment work and profile samples of concrete pavements. Theoretical foundations for quantifying concrete surface roughness were established, and regression models including linear regression, cubic regression, and log regression were selected. Additionally, the interquartile range anomaly removal technique was employed to preprocess the data for regression modeling. RESULTS : Concrete CSP profiles were measured through indoor tests, and the measured data were quantified. Linear regression, cubic regression, and log regression models were applied to each CSP grade for comparative analysis of the results. Furthermore, comparative studies were conducted through adhesion strength tests based on the CSP grade. CONCLUSIONS : Our results are expected to establish objective standards for the pretreatment stage of concrete repair and reinforcement. The derived reference values can inform standards for the restoration and reinforcement of concrete structures, thereby contributing to performance improvement. Moreover, our results may serve as primary data for the repair and reinforcement of various concrete structures such as airports, bridges, highways, and buildings.

바이오로거 외부 부착방법이 점농어 Lateolabrax maculatus(평균 체중 2630.8 g)의 혈액 특성과 바이오로거 부착효율에 미치는 영향을 조사하기 위해 바이오로거 미부착구(대조구), anchor attachment (AA), monofilament attachment (MA) 및 silicon tube attachment (SA) 방식의 4가 지 실험구를 설정하였다. 바이오로거 부착 후 1, 7, 14, 28, 56 및 84일에 혈액성상과 바이오로 거 부착효율을 조사하였다. 혈액 내 hematocrit, Na+, Cl-, GPT, total protein 농도 및 superoxide dismutase 활성은 바이오로거 외부 부착방법에 영향을 받지 않았다(p>0.05). AA 그룹의 GOT (부착 1일), hemoglobin(56일) 및 total cholesterol(56일 및 84일)와 MA 그룹의 glucose와 cortisol (14일) 및 total cholesterol(84일) 농도는 대조구에 비해 유의하게 높았다(p<0.05). 실험 기간 동안 SA 그룹의 모든 혈액 특성은 대조구와 차이가 없었다(p>0.05). AA, MA 및 SA 그룹 의 바이오로거 부착효율은 부착 84일 후 각각 0.0%, 33.3%, 그리고 100.0%였다. 이상의 결과 에서 최적의 외부 바이오로거 부착방법은 SA 유형으로 나타났으며, 점농어의 생체원격측정 기술 개발을 위한 기본 정보로 활용될 수 있을 것이다.

Distribution and logistics industries contribute some of the biggest GDP(gross domestic product) in South Korea and the number of related companies are quarter of the total number of industries in the country. The number of retail tech companies are quickly increased due to the acceleration of the online and untact shopping trend. Furthermore, major distribution and logistics companies try to achieve integrated data management with the fulfillment process. In contrast, small and medium distribution companies still lack of the capacity and ability to develop digital innovation and smartization. Therefore, in this paper, a deep learning-based demand forecasting & recommendation model is proposed to improve business competitiveness. The proposed model is developed based on real sales transaction data to predict future demand for each product. The proposed model consists of six deep learning models, which are MLP(multi-layers perception), CNN(convolution neural network), RNN(recurrent neural network), LSTM(long short term memory), Conv1D-BiLSTM(convolution-long short term memory) for demand forecasting and collaborative filtering for the recommendation. Each model provides the best prediction result for each product and recommendation model can recommend best sales product among companies own sales list as well as competitor’s item list. The proposed demand forecasting model is expected to improve the competitiveness of the small and medium-sized distribution and logistics industry.

본 논문은 멘델바움의 생애사 분석방법을 통한 장마당 세대인 기독 탈북청년의 독일정착을 분석함으로써 이주 동기와 적응 과정과 신앙여정을 전반적으로 살펴보는 데 의의가 있다. 이러한 연구목적을 달성하기 위해서 첫째, “기독 탈북청년의 삶의 영역은 어떠한가?” 둘째, “기독 탈북청년의 삶의 전환점은 무엇이며 이를 가능하게 한 개인적·사 회적·국가적 조건들은 무엇인가?” 셋째, “기독 탈북청년의 독특한 적응 방법은 무엇인가?”라는 연구문제를 설정하였다. 연구참여자 A의 삶의 영역은 「북한에서의 행복한 삶」, 「이방인의 마음을 경험한 한국」, 「유학과정에서 다시 만난 하나님」, 「독일정착을 위한 노력」, 「결혼을 통한 새로운 시작」으로 나눌 수 있다. 삶의 전환점은 「가족과 함께한 탈북」, 「외국인 교환학생들과의 만남」, 「크리스천들의 도움」, 「뜻밖의 결혼」으로 나타났다. 삶의 적응은 「모든 상황을 긍정적으로 생각하기」, 「노력하면 꿈을 이룰 수 있다는 믿음」, 「관계를 중시하는 삶」, 「다문화 사회에 대한 열정적인 호기심」으로 분류되었다. 참여자 A의 신앙여정은 롤러코스터와 같았지만 결국은 믿음을 회복하고 독일에서 신실한 교인 으로 살아가고 있다. 끝으로 위의 연구결과들을 바탕으로 탈북청년들의 해외 이주 및 적응과 신앙여정에 관하여 제언하였다.

Fish resource surveys were conducted near Jeju Island in June, August and October 2021 using an underwater camera monitoring system, fish pots, and SCUBA diving methods. The efficiency of the methods used to survey fish resources was compared using the number of individuals compared to area per unit time (inds/m3/h) and the number of species compared to area per unit time (spp./m3/h). As a result of comparing the number of individuals compared to the area per unit time (inds/m3/h), the order was underwater camera 214.69, SCUBA diving 124.62, and fish pots 0.57 inds/m3/h. The number of species compared to area per unit time (spp./m3/h) is in the following order: SCUBA diving 0.85, underwater camera 0.38, and fish pots 0.01 spp./m3/h. The fish resource monitoring method using underwater cameras was found to be more efficient in individual counts, and the SCUBA diving method was found to be more efficient in species counts. When considering cost and survey efficiency, the fish resource survey method using underwater cameras was judged to be more effective. The results of this study are expected to be widely used in estimating the population density of fish, which is the core of future fisheries resource surveys.