• Advances in concrete construction
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• 제14권1호
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• pp.1-13
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• 2022

Due to the physical-chemical characteristics of some bottom ash (BA), there are technical, economic and environmental limitations to find a destination that will add value to it. In Brazil, this residue is eventually used for filling coal extraction pits or remains in sedimentation ponds, creating a susceptible panorama to environmental issues. The geopolymers binders are one of the alternatives to the proper use high amounts of these materials. In this work, geopolymeric binder pastes were produced with BA mixed to activators with different alkali contents (expressed as %Na₂O), as well as the incorporation of soluble silicates (Ms content). The production of binary geopolymeric pastes based on the use of two industrial wastes: fluid catalytic cracking (FCC) and aluminum anodizing sludge (AAS), was also assessed. The content in mass of BA/FCC and BA/AAS ranged from 100/0, 90/10; 80/20 and 70/30. Systems with soluble silicates as activator in a molar ratio SiO₂/Na₂O of 1.0 (Ms = 1.0) and Na₂O content of 15%, showed the best results of mechanical strength (42 MPa at day 28^th). The improvement is up to 5X when compared to NaOH based systems. For systems with partial replacement of BA of 10% of AAS and 20% of FCC (80/20), the presence of soluble silicates was also effective to increase compressive strength.

• Restorative Dentistry and Endodontics
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• 제46권4호
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• pp.60.1-60.8
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• 2021

Objectives: The aim of this study was to verify the match between 5 shades of composites from different manufacturers with a shade guide and among the systems using a portable spectrophotometer. Materials and Methods: Shade measurements were performed on specimens of Z350 XT (3M ESPE), Charisma Diamond (Heraeus Kulzer GmbH), Esthet X-HD (Dentsply Caulk), and Empress Direct (Ivoclar-Vivadent) for shades A1, A2, A3, B1, and C3 using a Vita Easyshade spectrophotometer (Vita Zahnfabrik) against a white background. Corresponding shades of Vitapan Classical (Vita Zahnfabrik) guide were measured likewise and shade variation (ΔE) was calculated based on International Commission on Illumination L^*a^*b^* parameters. The ΔE of the composites in each shade was compared by one-way analysis of variance and Tukey's post hoc test (α = 0.05). Results: All composites presented ΔE > 3.7 compared with the shade guide. Variation in shades A3, B1, and C3 was significantly different for all composites. ΔE of Z350 XT was significantly lower for A1 than for the other shades, whereas ΔE of Z350 XT and Charisma Diamond were significantly lower for A2 than for the other shades. Conclusions: No composite shade matched with the shade guide. Equivalent shades of the restorative composite from different manufacturers may show clinically noticeable ΔE.

• 운동영양학회지
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• 제13권1호
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• pp.9-14
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• 2009

The effects of a hypocaloric diet with or without strength training on body fat distribution and serum lipid concentrations in obese elderly women were investigated. Twenty-six healthy women (age 66±4.6 yr; body mass index 32.3±2.9 kg/m²) were randomly assigned to 3 groups: control (C; n=8), hypocaloric diet (DO; n=9) or hypocaloric diet with strength training (DST; n=9). Subcutaneous adipose tissue (SAT), visceral adipose tissue (VAT), and inter and intra muscular adipose tissue (IMAT) were measured using magnetic resonance imaging. Serum lipid concentrations including total cholesterol (TC), high density lipoprotein cholesterol (HDLC), low density lipoprotein cholesterol (LDLC), and triglycerides (TG) were measured. No significant changes occurred in body weight and percent body fat in the C group over the 16-week period. The DO and DST groups lost similar amounts of weight and fat after 16 weeks. SAT and VAT decreased after weight loss in the DO and DST groups but not in the C group. IMAT was significantly reduced in the DO and DST groups, whereas in the C group IMAT increased. The loss in IMAT mass was similar in the DO and DST groups. TC and LDLC decreased in the DO and DST groups but not in the C group. There were no differences between the DO and DST groups in decrease in TC and LDLC. HDLC decreased in the DO group but not in the C and DST groups. TG tended to decrease in the DST group. In conclusion, body fat distribution including SAT, VAT, and IMAT and serum lipid concentratons were modulated by weight loss resulting from the hypocaloric diet with or without strength training in obese elderly women. Strength training did not enhance the improvement in body fat distribution and serum TC and LDLC concentrations by the hypocaloric diet.

• 산업진흥연구
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• 제9권2호
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• pp.137-151
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• 2024

본 연구는 고창 도솔산(兜率山) 선운사(禪雲寺) 입지에 대한 풍수적인 특징을 현장조사와 문헌고찰을 통해 형세론적 관점과 이기론 관점에서 분석한 연구이다. 풍수가 갖는 특징적인 요소는 자연과 조화를 최우선 하며 합리적인 방법을 통하여 입지선정의 기준점으로 삼았다. 신라시대 입당승들은 형세풍수가 처음 나타난 강서지역에 유학을 하였는데, 강서지법의 형세풍수가 우리나라에 유입되어 사찰의 입지선정과 가람배치에 주도적인 역할을 했다. 선운사는 도솔산 아래에 입지하여 그 의미가 클 수밖에 없었고, 부처님의 나라로 들어가는 도솔천(兜率川)과 도솔암(兜率庵)을 통한 불교적 완성을 이루고자 하는 바람의 실천이었다. 따라서 고창 도솔산(兜率山) 아래에 자리한 선운사 입지에는 다양한 풍수적 특징이 반영되었는데, 특히 도솔산 선운사의 입지에는 풍수가 가지고 있는 특징과 의미를 논리적으로 사용하였고, 불교의 가장 신성한 의미를 갖는 불교 교리와 사상 전파를 목적으로 하는 자연과 하나되는 모습을 실천하였다.

• 아태비즈니스연구
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• 제14권4호
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• pp.387-399
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• 2023

Purpose - The purpose of this study is to review the export support projects in Jeollabuk-do and to provide implications to the policy makers and to the local exporters. Based on this review, the study proposes future measures to enhance the efficiency of the current Jeollabuk-do export support project. Design/methodology/approach - This study reviews export support projects in Jeollabuk-do, d examines program types and utilization status, and subsequently summarizes the key aspects of Jeollabuk-do SMEs' export support projects. Findings - This study suggests that Jeollabuk-do's export support project can become more effective through active development of overseas markets and professional integration of marketing activities, particularly focusing on regionally specialized export products. Additionally, given the crucial roles played by the government, related agencies, and local offices in improving the export capabilities of SMEs in Jeollabuk-do, there is an emphasis on the need for continuous and systematic follow-up management and the establishment of export support projects and services. Research implications or Originality - While small and medium-sized enterprises (SMEs) in Korea account for a significant portion of export activities, their actual export performance and contribution are low. The export competitiveness of SMEs, particularly those located in regions other than Seoul and Gyeonggi Province, is not improving despite various export support projects being promoted. Under the circumstances, this study provide meaningful implications to the policy makers and to the local exporters.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2005년도 춘계학술발표회 요지
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• pp.134-135
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• 2005

• 한국약용작물학회:학술대회논문집
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• 한국약용작물학회 2011년도 추계학술발표회
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• pp.104-105
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• 2011

• 한국약용작물학회:학술대회논문집
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• 한국약용작물학회 2011년도 춘계학술발표회
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• pp.210-211
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• 2011

• 한국진공학회:학술대회논문집
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• 한국진공학회 2005년도 제28회 학술발표회 초록집
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• pp.66-66
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• 2005

• 한국작물학회:학술대회논문집
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• 한국작물학회 2003년도 추계 학술발표회 요지
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• pp.212-213
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• 2003