• Title/Summary/Keyword: baking properties

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Effects of Soft Baking Temperature on the Properties of Solution Processed Zn-Sn-O Thin-Film Transistors (소프트 베이킹 온도가 용액기반 Zn-Sn-O 박막 트랜지스터의 전기적 특성에 미치는 영향)

  • Lee, Jae-Won;Cho, Won-Ju
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.29 no.1
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    • pp.6-10
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    • 2016
  • In this study, the effects of soft baking temperature on the solution derived ZTO (Zn-Sn-O) TFTs (thin-film transistors) as a In-free oxide semiconductor were investigated. In spite of the same hard baking at high temperature($600^{\circ}C$), the electrical properties of ZTO TFT was greatly changed by a small difference in soft baking temperature($180{\sim}250^{\circ}C$). The performance of TFT was deteriorated as the soft baking temperature increased. Therefore, it is important to remove the water-related defects well as organic impurities from the ZTO films during soft baking for fabrication of solution-derived high performance of TFTs.

Genotypic and Environmental Effects on Cookie Quality of Korean Winter Wheat

  • Hong, Byung-Hee;Park, Chul-Soo;Baik, Byung-Kee
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.46 no.5
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    • pp.352-359
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    • 2001
  • Cookie baking properties and relationships between cookie baking properties and flour characteristics were evaluated for two years, 1997 and 1998, and at two locations, Suwon and Deokso, with Korean winter wheat cultivars and lines. Cookie baking parameters, except for cookie diameter and top grain score, were influenced by locations and years. Chokwang, Suwon 274, Suwon 275, Suwon 277 and Urimil showed larger cookie diameter and excellent top grain score compared to the other Korean winter wheat cultivars and lines. Among the flour characteristics, protein content, damaged starch content, alkaline water retention capacity and flour swelling volume showed high positive correlation coefficients with cookie baking parameters. Friabilin-present lines showed larger cookie diameter, suitable surface structure of cookie and softer snapping force than the friabilin-absent lines.

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Evaluation of Bread Baking Quality of Korean Winter Wheat over Years and Locations

  • Hong, Byung-Hee;Park, Chul-Soo;Baik, Byung-Kee
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.47 no.1
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    • pp.13-20
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    • 2002
  • Bread baking parameters and relationships between bread baking properties and flour characteristics were evaluated for two years, 1997 and 1998, and at two locations, Suwon and Deokso, with Korean winter wheat cultivars and lines. Among the bread baking parameters, lightness of crumb grain showed differences between years. No significant differences were found in dough mixing time, bread loaf volume, crumb grain score or firmness. Keumkangmil, Suwon 278 and Tapdongmil showed higher bread loaf volume, good structure of crumb grain and softer crumb firmness. However, compared to commercial flours for baking, cultivar means averaged over years and locations of nineteen Korean winter wheats showed poor bread baking quality because of low protein content and unsuitable protein quality. Protein content and flour swelling volume showed better relationships with the bread baking parameters than other flour characteristics. Friabilin-absence lines showed softer crumb firmness than those of friabilin-presence lines.

Studies on Baking Properties of Korean Wheat (韓國産 小麥의 製빵 適性에 關한 硏究)

  • Lim, Yoon-Hee;Noh, Wan-Seob
    • Journal of the East Asian Society of Dietary Life
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    • v.7 no.2
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    • pp.167-173
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    • 1997
  • The primary objective of this study was tested the baking properties of Korean wheat. In test results, the wheat which was harvested from all over the Korea, not suitable for making bread and cake products. However, some of possibilities to make bread were found by using vital gluten as well as additives. Out of Korean wheat classes, the Tapdong wheat showed good properties for bread making, and it is recommended to develope it as bread making wheat by segregating from other classes in seeding and harvesting.

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Improvement in Electrical Characteristics of Solution-Processed In-Zn-O Thin-Film Transistors Using a Soft Baking Process (Soft-Baking 처리를 통한 용액 공정형 In-Zn-O 박막 트랜지스터의 전기적 특성 향상)

  • Kim, Han-Sang;Kim, Sung-Jin
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.30 no.9
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    • pp.566-571
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    • 2017
  • A soft baking process was used to enhance the electrical characteristics of solution-processed indium-zincoxide (IZO) thin-film transistors (TFTs). We demonstrate a stable soft baking process using a hot plate in air to maintain the electrical stability and improve the electrical performance of IZO TFTs. These oxide transistors exhibited good electrical performance; a field-effect mobility of $7.9cm^2/Vs$, threshold voltage of 1.4 V, sub-threshold slope of 0.5 V/dec, and a current on/off ratio of $2.9{\times}10^7$ were measured. To investigate the static response of our solutionprocessed IZO TFTs, simple resistor load type inverters were fabricated by connecting a resistor (5 or $10M{\Omega}$). Our IZO TFTs, which were manufactured using the soft baking process at a baking temperature of $120^{\circ}C$, performed well at the operating voltage, and are therefore a good candidate for use in advanced logic circuits and transparent display backplanes.

Evaluation of Failure Mode and Strength on Baking Time of Adhesive for Hybrid Joining (접착제 경화시점에 따른 하이브리드 접합 파단모드 및 접합강도 평가)

  • Choi, Chul-Young;Saha, Dulal Chandra;Choi, Won-Ho;Kim, Jun-Ki;Kim, Jong-Hoon;Park, Yeong-Do
    • Journal of Welding and Joining
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    • v.29 no.6
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    • pp.49-55
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    • 2011
  • With the development of pre-painted steel sheets for automotive body application, a new joining method is required such as hybrid joining with combination of adhesive bonding and mechanical joining. The objective of this study is to investigate the effect of pre- and post-baking of adhesive bonding on failure mode and strength of hybrid joining of automotive steel sheets. Experiments show that the hybrid joining exhibits better bonding strength and displacement than conventional adhesive joining and mechanical fastening each. Comparison of pre- and post-baked hybrid joining results suggested that baking at $160^{\circ}C$ after mechanical joining was found to have higher joining properties than pre-baking condition. The prebaking condition changed its fracture mode from interfacial to button fracture. The changes in fracture mode with post-baking of hybrid joining was attributed to variation in neck thickness and undercut of joint.

Effect of Enzymatically Hydrolyzed Vital Wheat Gluten on Dough Mixing and the Baking Properties of Wheat Flour Frozen Dough

  • Song, Kyung-Ah;Koh, Bong-Kyung
    • Food Science and Biotechnology
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    • v.15 no.2
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    • pp.173-176
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    • 2006
  • The effect of enzymatically hydrolyzed vital wheat gluten (EHG) on dough mixing and the baking quality of wheat flour frozen dough was examined. Three different proteases, pepsin, trypsin, and chymotrypsin, were tested individually, sequentially paired, or in combination of all three enzymes. Addition of 1% EHG produced no observable effect on the mixing properties of wheat flour dough. However, addition of 2.5% pepsin-hydrolyzed gluten decreased the mixing tolerance of the wheat flour, and 1% trypsin-hydrolyzed gluten increased the loaf volume of both frozen and non-frozen dough. This finding suggests that trypsin-hydrolyzed vital wheat gluten may serve as a baking additive in replacement for $KBrO_3$ to improve frozen dough quality.

Comparisions of Bread Baking Properties Using Domastic and Imported Flour and Quality Changes During Storage (우리밀과 수입밀을 이용한 제빵 적성 비교 및 저장 기간중 특성 변화)

  • Oh, Myung-Suk;L. Kim, Hye-Young
    • Journal of the Korean Society of Food Culture
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    • v.16 no.1
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    • pp.27-32
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    • 2001
  • Physicochemical and consumer acceptance properties of bread baking prepared with 100% domestic and imported flour and mixtures of the two flours by 50% to 50% were investigated in this study. Quality changes of the breads during storage at $1^{\circ}C$ were also evaluated. Volume of bread made of the mixtures of flour showed significantly higher values than the other two samples. Hardness of bread made with domestic flour had significantly higher value than that of control on the first day of storage at $4^{\circ}C$. However, mixture sample showed significantly higher value than that of control after the third day of storage. Consumer acceptance test indicated that the bread prepared with 50% imported and 50% domestic flour were not significantly different from the bread prepared with 100% imported flour.

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The Study on the Properties of Calcined Oyster Shell & Hwang-To Powder (황토를 혼합 소성한 굴패각 미분말의 물성에 관한 연구)

  • Jung, Joo-hyung;Park, Min-Soo;Jung, Min-Soo;Kim, Hyo-Youl;Kang, Byung-Hee
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2007.11a
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    • pp.41-44
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    • 2007
  • Recently, the strenuous industrial waste is scattered and one of the oyster also make the serious environmental contamination. The purpose of this study is investigating an utilization ability as calcium binder of the oyster with Hwang-To according to a rate(10%, 20%, 30%, 40%, 50%). This study grasp physical properties of the oyster powder, bake production of the paste, and conduct the flow test, stiff time test and strength test. According to baking condition, strength of $1000^{\circ}C$(120minutes, rate 30%) is higher than any other condition. The oyster powder from above $900^{\circ}C$ seem possibility as binder hereafter. It is thought that the continuous research will be necessary.

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Rheological Properties of Dough and Qualities of Functional Bread Flour Added with Chungpesagan-tang Extracts & Re-Procurement Attitude (기능성 빵의 반죽 특성 및 재구매 의도 연구 - 한약재 청폐사간탕 첨가 -)

  • Kang, Soak-Woo;Lee, Byoung-Gu
    • Culinary science and hospitality research
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    • v.10 no.4
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    • pp.165-177
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    • 2004
  • This study was accomplished to examine possibilities to apply Korean medicine to breamaking. Extracts of Chungpesagan-tang prepared by the prescription of Korean medicine were used for baking, instead of water among ingredients of baking. Effects of addition of extracts of Chungpesagan-tang on various baking properties were analyzed during the process of baking. Changes in pH values and volumes of doughs during fermentation and pH values of bread showed no differences among samples. Loaf volumes and specific loaf volumes were increased somewhat on addition. The values of cohesiveness, springness, gumminess and brittleness of breads, which were measured by rheometer, were increased on addition while those of hardness were decreased a little. Lightness values of sections of loaves were decreased on addition, but their color differences were increased largely on color difference meter. There were nearly little differences among samples in all the values of parameters of external and internal characteristics and eating qualities of breads by sensory evaluation. Re-purchasing attitude of pullman bread added with Chungpesagan-tang had a high in the gender and age.

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