• Journal of dental hygiene science
• /
• v.14 no.1
• /
• pp.15-21
• /
• 2014

The purpose of this study in vitro investigation was to evaluate the dimensional stability of dental digital models made by impression scanning method. Twenty working models were produced. Twenty impressions were made from study models. The dimensional stability of models of two groups (stone and digital models) was examined using six landmark distances. Stone models were measured through digital vernier calipers. Digital models were measured by the computer program. Statistical analyses were performed with Wilcoxon rank sum test (${\alpha}=0.05$). The mean of six landmark distances were significantly larger in the stone models than in the digital models (p<0.05) but digital models showed clinically acceptable accuracy.

• Industry Promotion Research
• /
• v.1 no.1
• /
• pp.129-135
• /
• 2016

This study verified the water saving effect in case of raising water rate depends on water rate awareness. The study results showed that the perceived appropriacy of government aid(p<.001), home water rate(p<.01), water rate pricing system, water rate, water rate diffrences depend on use and area(p<.05) significantly affected the degree of agreement of raising water rate. Also, education, residence, member of household, occipation, monthly household income, monthly water rate significantly affected the degree of agreement of raising water rate, consumer behavior for saving water. This study provided implication for water rate pricing policy by analyzing the water saving effect in case of raising water rate depends on water rate awareness and revealing the determinants of the degree of agreement of raising water rate.

• The Journal of Korean Academy of Prosthodontics
• /
• v.57 no.4
• /
• pp.432-438
• /
• 2019

Accurate impression taking for the success of implant prosthesis is a very important process. Methods of taking implant impression include the conventional method using impression coping and impression material, and the digital method using an intraoral scanner and scanbody. However, the impression coping or the scanbody must install after remove healing abutment. Because of this, the dentist must repeat the process of removing and installing the healing abutment, the impression coping or the scanbody several times. In addition, the impression coping or the scanbody rises higher than the occlusal surface, so the patient has the inconvenience of constantly maintaining the open state. Recently, a scannable healing abutment, which can be scanned by a intraoral scanner directly, without the need to remove the healing abutment by applying a scannable part of the scanbody to the healing abutment, was introduced. We present a case of single posterior implant prosthesis using a scannable healing abutment.

• The Journal of the Korea Contents Association
• /
• v.21 no.6
• /
• pp.678-686
• /
• 2021

A smiling face usually has a positive effect on interpersonal relationships by delivering a warm impression. However, the stereotype content model and compensation effect between warmth and competence suggested that warmth perceptions caused by a smiling face could influence competence perceptions negatively. This study examined the negative impact of the advertising endorser's smile on purchase intention in an expensive product category by adopting the self-construal level. The study results showed that consumers with independent-self construal (vs. interdependent self-construal) showed a lower purchase intention when exposed to an ad containing an endorser's smile. In comparison, consumers with interdependent-self construal (vs. independent self-construal) showed a lower purchase intention when exposed to an ad without an endorser's smile. Thus, this study demonstrated a moderating role of self-construal in the relationship between advertising endorser's smile and purchase intention. These findings provide valuable theoretical and practical implications for effective advertising strategies in the expensive product category.

• The Journal of the Korea Contents Association
• /
• v.16 no.5
• /
• pp.520-532
• /
• 2016

In this paper, we propose a novel method to analyze and quantitatively evaluate the impression of landscapes and soundscapes about traditional area of Chungnam Asan city in Korea. For this, we collated data about impression evaluation of Korean and Japanese students and, based on these result, we proved the validity and usefulness of the evaluation system that we proposed through this study. The research process conducted in this study as follows: first of all, we had selected five traditional places of interest in Asan City, and investigated various conditional elements of the area including soundscapes which is forming the landscape using video camera. And we made both Korean and Japanese students evaluate the impression for these videotaped landscape data through using the SD(semantic differential) method. And then, we quantified these qualitative data through applying the quantification theory and cluster analysis method to them. Though this process, we could obtain both data as a result derived by classifying each sample and categorizing levels of those impression evaluation. Because of totally difference between those two analyzing processes, which one is for sample classification and the other is for determining impression level, we could validate the usefulness of our evaluation system through conducting comparative analysis of results from both methods. Analysis showed that our novel evaluation system for landscape is effective and, in most part of the traditional landscape, Japanese students' responses are different far from the Korean students' responses.

• Journal of the Computational Structural Engineering Institute of Korea
• /
• v.36 no.6
• /
• pp.407-414
• /
• 2023

In this study, an automated jack-up system, applicable to various fields, was employed for 3D concrete printing and developed as a simultaneous liftable 3D concrete printing system. This developed printing system enables safe and precise jack-up by monitoring the measured jack-up distance using Pearson correlation coefficient analysis and a hydraulic system with interquartile range analysis in real-time during 3D concrete printing operations. It is possible to secure the quality of 3D concrete printing structures, which is essential for expanding the application of 3D concrete printing to construct larger structures. Specimens were printed using both conventional 3D concrete printing and simultaneous liftable 3D concrete printing to evaluate the system performance. The printed specimens were investigated using a 3D scanner. The layer-wise diameter and angle of intersection of the scanned specimens were measured, and an analysis was performed to verify the advantages of the simultaneous liftable 3D concrete printing.

• Proceedings of the Costume Culture Conference
• /
• 2003.09a
• /
• pp.37-38
• /
• 2003

본 연구는 헤어스타일과 헤어컬러가 인상형성에 미치는 영향을 이해하기 위하여 퍼머여부, 헤어길이 및 헤어칼라에 따른 시각적 평가의 차이를 조사하는 데 그 목적이 있다. 연구방법은 준실험 방법으로서 3개의 독립변인에 의한 2×3×3(헤어스타일×헤어길이×헤어컬러)의 요인설계를 사용하였다. 지각대상자로서의 자극물은 20대 여성의 상반신의 모습으로서 헤어스타일을 변화시킨 것이다. (중략)

• KOREAN POULTRY JOURNAL
• /
• v.7 no.5 s.67
• /
• pp.85-90
• /
• 1975

우리 축산업계는 올들어 2차에 걸쳐 사료가격이 30$\%$ 가량 인상되어 양축가의 부담도 그만큼 가중되었다. 이러한 인상은 여러 가지 불가피한 요인 때문이지만 양축가는 사료가격의 재인상되지 않아야 겠다는 일말의 희망을 버리지 않았다. 이제 양축가는 보다 합리적인 경영으로 압박을 줄여야 할 것 같다. 금년 3/4분기와 4/4분기에 두차례에 걸쳐 소폭적인 가격인하 조정이 가능하리라 기대되며 금년 하반기 양계경기도 회복되리라 기대되어 양계가도 희망을 잃지 않고 앞으로 나아가야 겠다.

• KOREAN POULTRY JOURNAL
• /
• v.7 no.2 s.64
• /
• pp.37-44
• /
• 1975

사료협회 회원공장의 전체평균을 볼 때 155$\$$짜리 옥수수가 1월 4일이면 떨어지고 400 : 1의 적용을 받는 175$\$$짜리 옥수수는 2월 25일이면 떨어지기 때문에 2월 26일부터는 $\$$$174^{89}$의 485 : 1옥수수를 사용하게됨으로 1차 가격조정 14$\~$16$\%$ 인상후, 이 가격에 10$\%$+알파의 가격이 붙을 것이며 이와같은 가격은 7월말까지 지속될 것으로 전망된다.

• KOREAN POULTRY JOURNAL
• /
• v.36 no.5 s.415
• /
• pp.108-110
• /
• 2004

사료가격 인상. 외국산 축산물의 유입. 힘들게 생산해도 판로가 없다. 우리나라의 현실이다. 일본 역시, 사료원료의 수입과 외국산 농축산물이 수입 그리고 경기침체로 인한 소비부진, 저난가 사료가격 인상이라는 공통점을 가지고 있는 일본 산란계 농가의 현황을 알고 싶어서 농장에 체류하면서 일본 산란계 농장을 경험하였다. 필자가 방문한 곳은 고상식계사로 250,000수 수용이 가능하고 자체 GP시설을 가동하면서 판매점으로 직판하는 곳이었다.