• Korean Journal of Metals and Materials
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• v.48 no.9
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• pp.847-855
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• 2010

The grain size of a cross-section of $8{\mu}m$-thick copper film was determined by electron backscatter diffraction analysis. Grain size distribution histogram showed the presence of a large fraction of small-sized grains, and the mean grain size was significantly affected by handling of them. A cut-off grain size, below which all grains are ignored as noise and eliminated for the calculation of the mean value, should be three or four times as large as the step size. Due to the presence of small grains, the linear intercept method derived larger mean grain size, which depends less sensitively on the cut-off grain size than the equivalent circle diameter method.

• 한국정책학회보
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• v.21 no.3
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• pp.159-182
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• 2012

이 연구는 사회적 돌봄정책의 결정에 영향을 미치는 요인들에 대한 서울시 공무원들의 인식조사를 통하여 결정요인의 타당성을 검증해 보았다. 검증결과에 의하면, 서울시 공직자들은 현재의 사회적 돌봄정책의 지출이 미흡하다고 인식하는 것으로 나타났다. 그러나 금액의 부족에도 불구하고 정책의 우선순위에 있어서는 긍정적으로 인식하고 있었다. 이는 사회적 돌봄정책이 긍정적으로 성장하였을 뿐만 아니라, 향후에도 중요한 정책분야가 될 것임을 시사하고 있다. 또한 정책결정요인에 대한 인식조사에서는 시민사회요인과 인구사회요인이 중요하게 나타나고 있어, 수요측면에 대한 정책적 관심이 요구된다. 한편, 지방 정부 공무원들은 정부의 정책적 방향이나 지방정부의 재정능력이 중요하다고 인식하고 있어, 정책수요와 정책공급에 대한 인지부조화 현상이 발생할 가능성을 확인할 수 있다.

• Journal of the Korean Crystal Growth and Crystal Technology
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• v.3 no.2
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• pp.131-139
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• 1993

Transmission electron microscopy( lEM) technique which is useful for investigating the crystalline structure and defects, and reflection electron microscopy( REM) of which technique has very high sensitivity of detecting the defects on the crystal surfaces were applied to study the behaviour of dislocations and twins in or on the $a- AI_20_3$ single crystals.

• 한국벤처창업학회:학술대회논문집
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• 2022.11a
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• pp.195-199
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• 2022

본 연구는 스타트업 투자성과와 연계된 창업가 역량, 재무정보 등 정량데이터를 기반으로 스타트업 투자자들의 투자결정요인을 분석하였다. 주요 실증결과는 다음과 같다. 첫째, 창업 초기 종업원 수가 많고, 최고경영자의 지분비율이 높을수록 투자승인 확률이 높게 나타났다. 둘째, 재무적 특성에서는 기업의 매출액 규모가 작을수록 투자승인 확률이 높게 나타났다. 이러한 결과는 스타트업의 경우, 기업의 단기성과보다는 투자 결정에 있어 미래가치 혹은 다른 정성적인 요인이 더 고려된다는 점을 보여준다. 셋째, 창업가 특성에서는 CEO 교육수준(학력)이 높을수록 투자승인 확률이 높게 나타났다. 즉, 창업자의 학력은 성공적인 투자 여부에 핵심적인 변수이고 이것은 선행연구의 결과와 다르지 않았다. 또한, 학력과 투자유치의 연관성은 창업 3년 미만 스타트업에서 상대적으로 강하게 나타났다. 선행연구에서 투자정보공개, 관련 데이터 확보의 어려움으로 스타트업 투자에 관한 정량적 실증연구가 거의 진행되지 못한 점을 고려한다면, 본 연구는 설문조사 방식을 뛰어넘어 국내 초기 창업기업만을 대상으로 성공적인 투자유치와 연계된 스타트업의 평가요인을 정량적으로 분석했다는 점에서 중요한 의의를 갖는다.

• Journal of Digital Convergence
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• v.20 no.3
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• pp.157-167
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• 2022

This study was conducted to confirm the relationship between the proactive accounts receivable management of SMEs on credit sales decision making and business performance, and to derive effective accounts receivable management plan and systematic credit sales decision making plan. Based on 455 copies of data collected through a survey targeting SMEs, it was confirmed through factor analysis, reliability analysis, confirmatory factor analysis, and model fit verification, and the research hypothesis was verified with a structural equation model. As a result of the verification, credit rating had a positive effect on financial performance, sales performance and credit sales decision, while credit control had a positive effect on financial performance, while negative effect on sales performance and credit sales decision. In the mediating effect hypothesis test, credit sales decision had a positive effect between credit rating and business performance and a negative effect between credit control and business performance. The study suggests that if small and medium-sized enterprises improve their business performance through effective accounts receivable management, they can create a synergistic effect in enhancing the business performance of companies if they simultaneously improve their proactive accounts receivable management and credit sales decision ability. Future research is required to study the impact of factors such as segmentation of research subjects and credit transaction motives and accounts receivables management.

• Journal of the Korean Magnetics Society
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• v.6 no.3
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• pp.165-169
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• 1996

The relationship between grain size and number of magnetic domain walls for tertiary recrystallized ultra thin 3 % Si-Fe strips was investigated. It was found that the strips with different grain size can be produced by controlling the inserting speed of sample in annealing furnace. Though grain size of the stirip became smaller than 1mm, $B_{8}$ of high value above 1.95T was obtained. But $H_{c}$ increased with decaying the grain size. The magnetic domains and losses of the ultra thin grain oriented silicon steel with smaller grian size were observed. The eddy current losses of the strips were decreased with decreasing the grain size in high frequency range because strips with smaller grain have narrower magnetic domain wall spacings. But Hysteresis losses of the strips with smaller grain have high value in low frequency range. Therefore the iron loss of ultra thin grain oriented silicon steel could be controlled by the grain size. It was clarified that the minumum tatal loses depended on the exciting frequency and grain size.

• Journal of the Korean Crystal Growth and Crystal Technology
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• v.12 no.4
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• pp.210-214
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• 2002

The crystallization behavior of amorphous silicon (a-Si) film was investigated by using Cu-field aided lateral crystallization (Cu-FALC) process below $450^{\circ}C$. The lateral crystallization was induced from the Cu deposited region outside of pattern toward the Cu-free region inside of the pattern by applying an electric field during heat treatment. As expected, the lateral crystallization toward Cu-free region proceeded from negative toward positive electrode side. The occurrence of Cu-FALC phenomenon was interpreted in terms of dominant diffusing species in the reaction between Cu and Si. Even at the annealing temperature of $350^{\circ}C$, the large dendrite-shaped branches were formed in the crystallized region and the polarity in the lateral crystallization was clearly observed. Consequently, we could successfully crystallize the a-Si at the temperature as low as $350^{\circ}C$ by an electric field of 30 V/cm with fast crystallization velocity of 12 $\mu$m/h.

• Journal of the Korean Crystal Growth and Crystal Technology
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• v.12 no.4
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• pp.190-195
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• 2002

NaX zeolite crystals of a uniform particle size of 50 $\mu$m were grown by continuous crystallization method from seed crystals (10~20 $\mu$m) added into a 0.5~2.0 g mother liquor having a composition $3.5Na_2O : Al_2O_3: 2.1SiO_2: 1000H_2O$. In order to investigate the crystal growing by continuous method, the mother solution was supplied after 7 days, 5 days, 3 days and 1 day, respectively. The seeding resulted in an increase in the fraction of large crystals compared with unseeded batches and successfully led to an uniform NaX zeolite crystal. It was postulated that the seeding in the synthesis mixture leaded out increase of surface area for physical contact reaction and directed growth of seed crystal without the nucleation in the synthesis gel.

• Communications of Mathematical Education
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• v.27 no.3
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• pp.205-220
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• 2013

In this research, in order to investigate the principles for the development of mathematics textbook for decision-making based on storytelling, we conceptualized the educational meaning of decision-making and specified the principles and the methods for the textbook based on decision-making. We illustrated the principles and the methods by the cases from the model textbook for the conditional probability that we have developed. We discussed the implication for the future development and implementation of mathematics textbook for decision-making based on storytelling.

• Journal of Hospice and Palliative Care
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• v.17 no.4
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• pp.278-288
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• 2014

Purpose: The purpose of this study is to analyze types of shared medical decision making by health professionals in a decision making position. Methods: The Q-methodology was used. Q sample was constructed with a total of 35 Q-statements that were offered with a 9-point rating scale. The statements were structured to generate answers that would form a shape of a normal distribution. Answers to Q sample were analyzed using a QUANL PC program. Results: Four types of shared medical decision making were identified. Type I is patient-centered decision making, Type II is physician-centered, Type III is health professional-centered and Type IV is patient-family-centered. Conclusion: Study results indicate that it is recommended to develop an education program based on the four types of shared medical decision making so that health professionals can be provided with different approaches according to their decision making style.