• 상하수도학회지
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• 제20권3호
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• pp.317-328
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• 2006

• 한국재난정보학회 논문집
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• 제3권2호
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• pp.147-169
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• 2007

This study investigates the reinforcing effects of the Multi-bar Spring nails with respect to the conventional Soil-nails in artificial slopes. Based on wide experience related to design and construction, soil nails have been widely applied to reinforce slope in the world. Multi-bar spring nails are one of the improved soil nailing methods. These method maximizes bending, shearing, pull-out resistance for those multi-nails, not unit nail, that are inserted in the borehole using special spacer at regular intervals. In addition, because cutting plane is confined effect resulting from a pressured plate at the end of the nails with compression spring equipment, slope stability is secured using MS-nailing method. Analyzing bending, pull-out, shearing condition of MS-nail, it was examined throughly elastic region, load transfer capacity, reinforcing effect on cutting plate of MS-nails. In addition, Pilot and laboratory tests, numerical analysis were carried out to verify the superiority of MS-nailing method. In case, MS nailing method is applied to reinforce artificial slope, it was analyzed that bending, pull-out, shearing resistance was increased more than existing nailing method was applied. In this study, it was shown that surface failure was more or less prevented using MS-nailing method, confining effect on cutting plane using spring stuck to flexible equipment.

• 한국세라믹학회지
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• 제45권8호
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• pp.443-452
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• 2008

Shrinkage crack is a major concern for cement materials, especially for flat structures such as Korean On-Dol floor system, flooring for garages, and wall. One of the methods to reduce the adverse effects of shrinkage cracking is to reinforce cement materials with shot randomly distributed fibers. The efficiency of inorganic fibrous material to arresting cracks in cementitious composites was studied. Cement materials reinforced with five different qualities of inorganic fibrous material were tested. Contents of inorganic fibrous material were 1.0 kg, 1.5 kg, 2.0 kg, 2.5 kg, 3.0 kg by weight of cement mortar and C : S types of cement mortar were 1:3 and 1:4. W/C were 60% and 80%. Cement mortar of inorganic fibrous material reinforcement showed an ability to reduce the crack width and crack length significantly as compared to unreinforced cement mortar. $40%{\sim}60%$ drop in shrinkage crack of 1:4 cement mortar with 1.5 kg over was observed.

• Journal of Acupuncture Research
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• 제24권6호
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• pp.171-185
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• 2007

Objectives : This study was undertaken in order to establish the composite principles of formulas through the comparison of Saam acupuncture and Eight Constitution acupuncture theories. Methods : We compared the structural patterns of formulas between Saam and Eight Constitution acupuncture theories, and applied 'Wang Xiang Xiu Qiu Si(旺相休囚死)' to the analysis of formulas of these theories. Results : 1. There were similarities between Saam and Eight Constitution acupuncture theories in the comparisons of structural patterns of acupuncture formulas and tonifying liver formulas. 2. 'Wang Xiang Xiu Qiu Si' is applied to the constitutional strong and weak relationships of zang-fu organs in these theories. 3. In the cases of tonifying, it is possible to reinforce the family group and reduce the enemy group organs in the Eight Constitution acupuncture theory. In cases of purging, it is possible to reduce the family group and reinforce the enemy group organs. Conclusions : It is possible to establish the composite principles of formulas by the application of 'Wang Xiang Xiu Qiu Si' in Saam acupuncture and Eight Constitution acupuncture theories.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2004년도 제5회 정기학술발표대회 논문집
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• pp.480-485
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• 2004

본 연구는 건설현장 최종 의사결정자인 현장소장의 재해예방에 효과적인 리더쉽 유형과 이의 육성방안을 제안하기 위해 수행되었다. 이를 위해 첫째, 문헌연구를 통해 리더쉽의 유형과 특징에 대하여 고찰하고, 가설을 선정하였다. 둘째, 설문조사를 통해 현장소장의 리더쉽 유형, 현장 안전관리활동 수준, 교육프로그램의 실태를 파악하였다. 셋째, 가설을 검정 하여 재해예방에 효과적인 현장소장의 리더쉽 유형과 육성방안을 제안하였다. 재해예방에 효과적인 현장소장 리더쉽의 유 형은 높은 직무 중심형 $\cdot$ 인간 중심형 리더쉽이며, 이는 건설회사의 적극적인 교육 및 인센티브 프로그램을 통해 양성될 수 있음을 알 수 있었다.

• 가족자원경영과 정책
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• 제15권3호
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• pp.23-42
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• 2011

This study proposes a plan for the residents to have a capacity to build a family-friendly community on their own. As there is not a family-friendly community related program developed for "Resident's Capacity Reinforcement", three programs closely related with family-friendly community program were analyzed instead. Analysis showed that first, the community spirit must be emphasized to maintain the characteristics of family care with social support. Second, educational contents must reflect resident's capacity elements that are necessary for participating in the family friendly community building stages. Third, there is a necessity for systematization of education courses into beginner, intermediate, and specialty course given education is continued. Fourth, there is a necessity for the curriculum that may be used for the family friendly community building to foster human and material resource management ability. Therefore, framework for the educational contents suggests X-axis and Y-axis presented by person-business and morphogenic-morphostatic as referred to Ulrich(1997),s human resource model. However, this study has limitations because educational program of 'livable community building' are analyzed for the plan to reinforce capacity to build family-friendly community. There is a necessity for continuing to improve the program by in depth interview or social survey with residents and leader in community.

• 한국치위생학회지
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• 제18권5호
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• pp.683-691
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• 2018

Objectives: This study aimed to identify measures that can improve the quality of dental hygienists' work by analyzing the effects of role stress, resilience, and professional identity on burnout. Methods: Self-report questionnaires were administered to 339 dental hygienists working in dental institutions located in Seoul, Incheon, and Gyeong-gi, South Korea from August 1 to September 30, 2017. Results: Out of a maximum of 5 points, role stress scored an average of 2.80, resilience scored 3.61, professional identity scored 3.27, and burnout scored 2.78. The factor that most affected the exhaustion of dental hygienists was professional identity (${\beta}=-0.397$), followed by role stress (${\beta}=0.251$), and resilience (${\beta}=-0.150$). Conclusions: The results showed that the role stress, resilience, and professional identity of dental hygienists affected burnout. Efforts to reinforce the resilience and professional identity of dental hygienists may be needed alongside efforts to reduce role stress. Hence, resilience reinforcement programs alongside supplemental education programs that reinforce the work skills required of dental hygienists according to their clinical experience after graduation should be developed.

• 대한수학교육학회지:학교수학
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• 제4권2호
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• pp.297-316
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• 2002

In this paper, a teaching unit on series of number sentences with patterns is designed according to Wittmann's perspectives. In this paper, series of number sentences wish patterns means number sentences in which some patterns are contained. especially, seven kinds of number sentences wish patterns are offered as basic materials, and fifteen tasks based on these basic materials are offered. These tasks are for ninth grade students and higher grade students. These tasks heap students to recognize patterns, and to understand mechanism underlying in those patterns by looking for patterns and proving whether these patterns are generally hold. As working on these tasks, students can reinforce meaning of algebraic expression, its manipulation, and concept of number series. Students also can reinforce mathematical thinking such as analogical thinking, deductive thinking, etc. In this point, this teaching unit reveal important objectives, contents, and Principles of mathematics education. This teaching unit can also be rich sources for student's activities. Especially, for each task's level is different, each student's personal ability is considered fully. Since teachers can know mathematical facet, psychological facet, and didactical facet holistically, this teaching unit can offer broad possibilities for experimental studies. SD, this leaching unit can be said to be substantial. In this paper, this leaching unit is not applied in classroom directly. Actually such applying in classroom is suggested as follow-up studies. By appling this teaching unit in various classroom, some effective informations for teaching this teaching unit and some particular phenomenons in those teaching processes can be identified, and this teaching unit can be revised to be better one.

• 토지주택연구
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• 제2권2호
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• pp.189-194
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• 2011

동일 건축물의 지지력변화 구간이나 이질기초 부위에서 보강방법은 경험적이나 약식검토의 방법으로 처리되고 있으므로 이 문제를 보완하기 위해 해석적 기법에 의한 기초의 안정성을 판단하고 보완할 수 있는 방법을 제시하였다. 이질 기초지반의 치환에 의해 보강효과를 산정하기 위하여는 기초면 하부 지반의 깊이에 따른 영향계수를 고려한 지반강성 평가방법을 적용하여 치환지반의 효과를 판정하여야 한다. 이에 본 논문에서는 잡석치환과 콘크리트 치환에 의해 지반이 보강되는 효과를 나타내는 등가 지반반력계수를 손쉽게 산정할 수 있는 도표와 관계식을 제시하였다.

• 한국전자파학회논문지
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• 제17권3호
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• pp.295-306
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• 2006

본 논문은 고속 비행체용 안테나를 보호하기 위해 사용되는 안테나 커버(cover)를 새로운 제조 방식으로 제작하여 시뮬레이션과 실험을 통해 성능을 평가하였다. 안테나 커버용 소재는 사용 환경인 $600^{\circ}C$ 이상의 온도와 구조적 안정성을 가져야할 뿐만 아니라, 전파 투과성이 우수한 저유전율 소재여야만 한다. 고온, 고습의 환경의 변화에 따른 유전율을 토대로 모의실험을 통해 안테나 커버의 특성을 평가하였으며, 최적의 소재인 테프론 코팅된 세라믹 복합체를 안테나 커버에 적용하여 우수한 물리적 및 전기적 특성을 실험적으로 증명하였다.