• Korean Journal of Construction Engineering and Management
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• v.15 no.6
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• pp.71-82
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• 2014

Korea's labor productivity in construction sites is dependent on experience and act in accordance with the human element of the construction workers. In order to increase the work productivity of the construction site that requires a strategic management to potentially hindrance factors of labor productivity. However, without considering the potential problems, management of labor productivity in prior studies is focused only on the immediate problems. The purpose of this study is to compare the site-specific analysis of labor productivity impediments using easy IPA to identify potential causes. As a result of the analysis was to identify the realistic problems of job insecurity and poor working conditions as well as economic problems. It is expected that it is possible to provide the basic data to strategy suggestions for long-term labor productivity improvement of the construction site.

• Communications of Mathematical Education
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• v.27 no.3
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• pp.321-339
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• 2013

This study is basic research about actualizing mathematical teaching and learning based on storytelling that is raised for reforming school mathematics education. We have developed mathematics textbook model for 2nd grade in middle school based on storytelling. It was applied in the middle school classroom and the results were analyzed. In order to develop the mathematics textbook model, the procedures and methods of development were extracted from the literature. And mathematics textbook model was developed in accordance with the process and methods. To apply it in school 20 hours of instruction were carried out. For the analysis of the results, we conducted a questionnaire survey, the teachers' interview, the affective test and math anxiety test. Through the results of this study, we will be able to check the possibility of storytelling in mathematics class. And it will be also the foundation of mathematics teaching and learning based on storytelling in middle school.

• Journal of the Korean Society of Propulsion Engineers
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• v.1 no.2
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• pp.32-40
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• 1997

The velocity and turbulent intensity of the jet core are affected by the vortices around jet. By the control of vortex acoustically, we can expect the changes of the flow and heat transfer characteristics of free and impinging jets. On this paper, we studied the effects of vortex forcing. If vortex pairings are promoted by acoustic excitation, the turbulent intensity is increased and the high heat transfer coefficients are obtained at the small nozzle to plate distance. On the other hand, it has low turbulent intensity at the center of jet. However due to increase of potential core length, it is more effective at the large nozzle to plate distance. Therefore the excited frequency, especially its subharmonic frequency, has an important role to control the jet flows.

• Journal of the Korea Convergence Society
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• v.9 no.9
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• pp.407-420
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• 2018

The purpose of this study was to investigate the effects and characteristics of program on health promotion with foreign worker in Korea. The study was conducted using the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) Group. The final selected literature was varied in program and outcome variables. Therefore, it was difficult to quantitatively synthesize and it was analyzed through qualitative review. The findings indicate that health promotion programs for foreign workers reduced acculturation stress, depression and anxiety, and increased self-esteem. These findings provide scientific evidence for developing and using health promotion program of foreign workers. Futher development of a variety of health promotion programs and studies of effectiveness review for foreign workers in Korea.

• Journal of the Institute of Electronics Engineers of Korea SD
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• v.48 no.9
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• pp.13-21
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• 2011

In this paper, the CMOS programmable interface circuit for MEMS gyroscope is presented, and evaluated with the MEMS sensing element. The circuit includes the front-end charge amplifier with 10 bit programmable capacitor arrays, 9 bit DAC for accurate offset calibration, and 10 bit PGA for accurate gain calibration. The self oscillation loop with automatic gain control operates properly. The offset error and gain error after calibration are measured to be 0.36 %FSO and 0.19 %FSO, respectively. The noise equivalent resolution and bias instability are measured to be 0.016 deg/sec and 0.012 deg/sec, respectively. The calibration capability of this circuit can reduce the variations of the output offset and gain, and this can enhance the manufacturability and can improve the yield.

• Journal of the Korean Arthroscopy Society
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• v.1 no.1
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• pp.112-115
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• 1997

While the cruciate ligament has a profuse vascular response following injury, spontaneous repair does not occur. This may result from the fact that synovial fluid dilution of the hematoma following injury prevents the formation of a fibrin clot and thus the initiation of the healing mechanism. Another theory suggests that the dynamic nature of the fascicles of the anterior cruciate ligament(ACL) through even small ranges of motion prohibits spontaneous union to these fibers. But we experienced two cases of spontaneous healing of partially injured ACL. Initially they showed more than grade II anterior instability. 6 mm difference by stress roentgenographs(pull view) and difference of 8 mm by KT 1000TM arthrometer between the ACL injured knee and normal side knee. Lax, nearly complete tear of ACL and synovial bleeding were noted during arthroscopic examination but the continuity of synovial membrane was seemed to be intact. These cases were treated by conservative management rather than reconstructive procedure. Postoperatively they showed excellent clinical results, no anterior instability and unlimited athletic activity. Based on our clinical experience. we think that cruciate ligament has the spontaneous healing potential in acute stage and middle aged patient. We consider the microfracture technique and initial immobilization for accelleration of healing response of the ACL.

• The KIPS Transactions:PartD
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• v.10D no.7
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• pp.1213-1224
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• 2003

In recently, digital comic content distribution was not stable for illegal distribution and the weak of intellectual property right in the internet. The research activities of suggest the distribution model and secure intellectual property right are going in international standard communities, not yet in Korea. As the basis of the research, the general framework of international projects and standards such as MPEG-21, IMPREMATUR, FILIGRANE was analysed. Targeting on the domain of digital comics industry, the digital comics distribution structure and business flow model are defined adapting secured distribution system, DRM. The detail content of this research consist of three themes. The first, survey and analysis of the international standard ＆ leading DRM project's models. The second, suggestion of the service scenario on the digital comic content distribution. The third, suggestion of the model on the secured distribution of digital comics. Through this research targeting at the digital comics business, we found that standards technical items and requirements was well adapted into target domain, and would affect other domain in digital content industry.

• Journal of Oriental Neuropsychiatry
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• v.15 no.1
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• pp.121-126
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• 2004

The Common Symptoms of insomnia are to be hard to sleep, often wake up at night, be easy not to fall asleep again after waking up. In serious conditions, an insomniac can never get to sleep overnight. This is the case that we diagnosed a 49-year-old patient who demonstrates insomnia, palpitation, anxiety, dizziness, distress in the stormach as Deficiency of Yang(陽虛) and treated her. At 1st stage we diagnosed the patient as Insufficiency of both the heart and the spleen(心脾兩虛) and prescribed Gwibi-tang(歸脾湯), and next stage we dispensed bogol-dan(補骨丹) to cure Deficiency of Kidney Yang. As the result of treatment, the patient made a good improvement. We considered that this case report to be a good prcedent of Insomia due to deficiency of Yang.

• Journal of Digital Convergence
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• v.10 no.11
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• pp.433-439
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• 2012

This article aims at developing Mind Healing Program for university students, whose anxiety and depression are getting serious. Reality therapy was experimented total 10 times(one time per week), which was the revision and supplement of Woo(1994)'s reality therapy program. It consists of introducing program and self, understanding 5 mind desires, identifying obstacles of conversation, learning efficient communication skills, controling irrational expectation of others, recognizing mind gap, problems of choice and responsibility, nurturing mind, etc. The effectiveness of this program was verified through a model whose research variants were participation motivation, participation satisfaction, and mental health. Direct effects of participation motivation, participation satisfaction, and mental health were less satisfactory than indirect effects of the time when program satisfaction is a variant. It is concluded that mental health of participants is getting better when more satisfactory program should be provided, rather than motivation of simple participation.

• Journal of Korean Society of Forest Science
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• v.104 no.2
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• pp.294-299
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• 2015

This study was conducted to investigate the influence of a forest healing program on the level of job stress and the profile of mood states (POMS). 38 public servants who were in charge of social welfare in A city as well as 24 metal health care workers in C province participated in the forest healing programs. The data were collected by a pretest-posttest design. The data analysis showed that both job stress and POMS levels were significantly improved by the forest healing program. The therapeutic effects of forests are highly expected to be utilized for healing programs for job stress reduction and burnout prevention.