• Design & Manufacturing
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• v.11 no.3
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• pp.19-24
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• 2017

In these days, increase requirement of TEM (Transmission Electro Microscope) in not only scientific field but also industrial field. Because TEM can measure inner-structure of specimen a variety of materials like metal, bio. etc. When use TEM, specimen should be thin about 50nm. So making for thin specimen, use Ion milling device that include specimen holder. The holder generally made of Aluminium Aluminium holder is worn away easily. For this reason, using time of ion milling with aluminum holder is too short. To solve the problem, we replace aluminium holer to molybdenum alloy holder. In this paper, we design molybdenum alloy holer for CAM and modify CAD modeling for effective machining process. So we array a specimen 3 by 4 and setup orientation for one-shot machining process. Next we make a CAM program for machining. we making a decision two machining strategy that chose condition of tool-path method, step-down, step-over. etc. And then conduct machining using CNC milling machining center. To make clear difference between case.1 and case.2, we fixed machining conditions like feed-rate, main spindle rpm, etc. After machining, we confirm the condition of workpiece and analysis the problems case by case. Finally, case.2 work piece that superior than case.1 cutting with WEDM because that method can not ant mechanical effect on workpiece.

• Journal of The Korean Society of Integrative Medicine
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• v.2 no.1
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• pp.1-14
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• 2014

Purpose : The aim of this study was to investigate Activities of Daily Living(ADL) function recovery of repeated measurement of stroke who received ADL training. Method : Twenty stroke patients were treated by ADL program therapy from May to June. All of in twenty stroke patients, 10 stroke patients take part in Occupational Therapy and 10 stroke patients take part in ADL training for 30 min five times a week during four weeks in M- hospital occupational Therapy treatment room, local in Changwon and Geoje. We used two assessment on is Motor Free Visual Perception Test-Third Edition(MVPT-3) for visual perception the other is Modified Barthel Index(MBI) for ADL. Result : First, Visual Short Term Memory(VSTM) score was changed statistical significance OT intervention group than compare with ADL training group(p<.05). Second, Visaul Closure(VC) score was changed statistical significance OT intervention group than compare with ADL training group(p<.05). Third, Spatial Orientation(SO) score was changed statistical significance OT intervention group than compare with ADL training group(p<.05). The fourth Motor Free Visual Perception Test-Third Edition(MVPT-3) score was changed statistical significance OT intervention group than compare with ADL training group(p<.05). The fifth Modified Barthel Index(MBI total) score was changed statistical significance OT intervention group than compare with ADL training group(p<.05). Conclusion : Therefore, ADL training can be on method the visual perception of stroke patients.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.47 no.10
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• pp.687-694
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• 2019

A circular composite spar in the wing of ultra-light aircraft is subjected to both bending moment and transverse shear loads. However, the beam being used in the aircraft may be inefficient because the design would not take into account the characteristics of the circular tube that supports the bending moment in top and bottom arc parts and the transverse load in left and right ones. Therefore, it is necessary to efficiently fabricate the circular tube beam by properly selecting the stacking sequences or the laminated composite structure. In order to increase both bending and transverse shear strengths of the beams, in this study, a cross-section of circular tube is divided into four arcs: top, bottom, left and right ones. The commercial program, MSC/NASTRAN is used to calculate vertical displacement and the normal and shear strains with variation of parameters such as division angle of arc and fiber orientation. Based on the results, the effective parameters for the new circular composite beam are presented to increase its bending and shear strengths.

• Journal of the Korean Regional Science Association
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• v.36 no.4
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• pp.43-56
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• 2020

This study aims to explore the possibilities of social integration focused on the inclusionary housing scheme developed in the United States. Inclusionary housing is produced by inclusionary zoning with planning power. One of the main goals of developing inclusionary housing is to achieve social integration in neighborhoods. The author investigates the origin, evolution, characteristics, and mechanism of the inclusionary housing scheme in the United States. Results show that the inclusionary housing scheme utilizes market mechanism such as the incentives of floor ratio bonus, fast tract permit approach as well as the affordability obligation for the low-income households. Considering the policy orientation in the United States toward market mechanism, the inclusionary housing program has played a significant role in producing and preserving affordable housing for the underprivileged in affluent neighborhoods and has produced meaningful results in academic achievements, better job outcomes, health results, and social interaction even though it has been also criticized with by its superficiality. Finally, the author draws policy implications for housing policy in Korea from the lessons and limitations of the inclusionary housing mechanism.

• Journal of Advanced Navigation Technology
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• v.25 no.4
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• pp.293-298
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• 2021

In general, the guided weapon seeker and the guided control device process the target, search, recognition, and capture information to indicate the state of the guided missile, and play a role in controlling the operation and control of the guided weapon. The signals required for guided weapons are gaze change rate, visual signal, and end-stage fuselage orientation signal. In order to process the complex and difficult-to-process missile signals of recent missiles in real time, it is necessary to increase the data processing speed of the missiles. This study showed the processing speed after applying the stop and go and inverse enumeration algorithm among the parallel algorithm methods of PINQ and comparing the processing speed of the signal data required for the guided missile in real time using the guided missile inspection program. Based on the derived data processing results, we propose an effective method for processing missile data when applying a parallel processing algorithm by comparing the processing speed of the multi-core processing method and the single-core processing method, and the CPU core utilization rate.

• Korean Journal of Culture and Social Issue
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• v.14 no.1_spc
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• pp.135-152
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• 2008

The purpose of this study is to research psychological and social devices to foster self-regulated learning of Korean adolescents. This study investigated metacognitive, motivational, and behavioral factors of self-regulated learning through current research. In terms of metacognitive factors, we reviewed the importance of cognitive and metacognitive learning strategies of adolescents for better self-regulated learning. Especially we gave a great emphasis on the role of comprehension monitoring metacognitive strategy for the learning to read in this review. For motivational factors, recent research of self-regulated learning has tended to focus on self-efficacy and goal orientation. The current research examining behavioral factors of self-regulated learning has tended to focus on time management and academic procrastination. Research findings in the motivational aspect suggest that we need to develop the program to improve adolescents' self-efficacy and recognize new re-conceptualization of the goal theory. Research findings in the behavioral aspect recommend practical tips and strategies to improve time management skills and to overcome academic procrastination. Finally, future directions for research are discussed.

• Physical Therapy Rehabilitation Science
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• v.13 no.1
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• pp.18-25
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• 2024

Objective: This study is a single-group pre-post experimental study to determine the effects of simulation-based practice education on nursing students' self-efficacy, performance confidence, and educational satisfaction. Design: Single-group pre-post experimental studies Methods: This study was conducted from September 1, 2023 to November 30, 2023 for nursing undergraduate students in a simulation based practical education program. The subjects were provided with learning materials about an acute myocardial infarction case with chest pain for preliminary learning. After that, they were divided into teams of 6 people and asked to do self-study for 2 hours per team, twice a week, before conducting simulation practice. For the simulation based practical education, the participants were divided into 9 teams of 6 people each, and each team had 10 minutes for orientation, 15 minutes for scenario operation, and 50 minutes for debriefing. Results: After the simulation based practical education, self-efficacy increased statistically significantly from a mean of 3.51 before training to a mean of 3.80 after training (t=-2.12, p=0.038). However, there was no significant difference in performance confidence. There was a significant positive correlation between self-efficacy and performance confidence (r=0.62, p<0.001) and training satisfaction (r=0.67, p<0.001) after the simulation based practical education. Self-confidence was also significantly correlated with educational satisfaction (r=0.76, p<0.001). Conclusions: The results of this study showed that utilizing simulation-based practical education can increase nursing students' self-efficacy, which positively affects their performance confidence and educational satisfaction. Therefore, simulation-based practical education is an effective nursing education method that can improve nursing students' practical skills.

• Tunnel and Underground Space
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• v.13 no.1
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• pp.52-63
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• 2003

Discontinuities such as faults, fractures and joints in rock mass play the dominant role in the mechanical and hydraulic properties of the rock mass. The key factors that influence on the flow of groundwater are hydraulic and geometric characteristics of discontinuities and their connectivity. In this study, a program that analyzes groundwater flow in the 3D discontinuity network was developed on the assumption that the discontinuity characteristics such as density, trace length, orientation and aperture have particular distribution functions. This program generates discontinuities in a three-dimensional space and analyzes their connectivity and groundwater flow. Due to the limited computing capacity In this study, REV was not exactly determined, but it was inferred to be greater than 25$\times$25$\times$25 ㎥. By calculating the extent of aperture that influences on the groundwater flow, it was found that the discontinuities with the aperture smaller than 30% of the mean aperture had little influence on the groundwater flow. In addition, there was little difference in the equivalent hydraulic conductivity for the the two cases when considering and not considering the boundary effect. It was because the groundwater flow was mostly influenced by the discontinuities with large aperture. Among the parameters considered in this study, the length, aperture, and orientation of discontinuities had the greatest influence on the equivalent hydraulic conductivity of rock mass in their order. In case of existence of a fault in rock mass, elements of the equivalent hydraulic conductivity tensor parallel to the fault fairly increased in their magnitude but those perpendicular to the fault were increased in a very small amount at the first stage and then converged.

• Journal of the Korea Society of Computer and Information
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• v.25 no.9
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• pp.133-141
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• 2020

This study was conducted to investigate the relationship between sexual consciousness, marriage consciousness, birth consciousness and pre-parent role of college students.,The subjects of this study were college students attending B,K University located in B city and the significance level(α) 0.05, power(1-) 0.8, effect size(fz) was verified in ANOVA using G-POWER 3.1.9.2 program.,The results of the study showed that the average score of sexual consciousness was 2.91±0.43, the marriage consciousness was 3.27±0.40, the birth consciousness was 3.32±0.43, and the pre-parent role was 3.35±0.35. When examining the relationship between sexual consciousness, marriage consciousness, birth consciousness, and pre-parent role according to the general characteristics of the subjects, sexual consciousness showed significant differences according to gender (t=6.910, p<.001), age (F=3.032 p=.030), major (F=5.402, p=.005), and parental orientation (F=2.801, p=.027).,The marriage consciousness of college students showed significant difference according to family members, and the birth consciousness showed significant difference according to grade and family members, and the role of pre-parents was significant according to grade and family members.,The role of pre-parents of college students showed significant correlations in sexual consciousness, marriage consciousness, and birth consciousness.,Repeated studies on the role of pre-parents based on parent-child relationship are needed, and studies are required to identify the relationship between sexual consciousness, marriage consciousness, birth consciousness, and pre-parent role.

• Journal of Korean Academy of Nursing
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• v.30 no.5
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• pp.1279-1291
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• 2000

The main objectives of this study were to analyze the concept of hope, so to provide basic data to develop a valid instrument to measure hope, and to develop hope enhancing nursing intervention a program for cancer patients. The hybrid model approach was applied in three phases, the theoretical phase, the empirical phase, and the analytic phase. The study was developed on universal attributes explaining generalized hope and specific hope, which were revealed in a comprehensive review of the literature. In the empirical phase, eight cancer patients undergoing chemotherapy were interviewed to reveal causes, motivation, and their resource of hope according to The Hope Assessment Guide (Farren, Herth, & Popovich, 1995). In the analytical phase, the results of the two previous stages of the study were compared. The results were as follows : In the theoretical phase, six dimensions of hope emerged; affective, cognitive, behavioral, affiliative, temporal and contextual dimension. The antecedent of hope was loss, crisis, uncertainity, and stress. The consequences were renewal, development of new methods, safety, peace and transcendental competence. In the empirical phase, these six dimensions emerged as theoretical phases were verified and specified as these descriptive terms: feeling, intention, expectation, activity, relation, future- orientation, reality and goal-setting. The antecedent factor of hope was occurrence or recurrence of cancer. The consequence of hope was ability to cope with real condition, feeling of safety and comfort, peace, development of new strategy and recovery of disease. The major content of hope in this phase was related to specific hope, but it was also influenced on by general hope. In the analytic phase, general and specific hope was renamed as trait and state hope. All attributes emerged at the empirical phases, and also emerged at the theoretical phase. However, cognitive and contextual dimensions were revised and specified. In conclusion, the concept of hope is divided into trait hope and state hope, and state hope is an anticipatory expectation that occurs at the time of a stressful stimulus, such as being diagnosed with cancer. Hope is a multidimensional dynamic energized mental state which has the dimensions of affective, cognitive, behavioral, affiliative, temporal and contextual. There should be further studies to develope the state and trait hope scale according to definition and attributes of hope investigated in this study. In addition, considering results of the empirical phase, the family is very a important factor as a resource of hope, so it is necessary to consider family in implementing a nursing intervention program to enhance hope.