• Title/Summary/Keyword: 2SLS

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The Effect of Cryoprotectants on the Properties of Pacific Sand Lance Ammodytes personatus Girard Surimi During Frozen Storage

  • Yoo, Byung-Jin
    • Fisheries and Aquatic Sciences
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    • v.17 no.3
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    • pp.291-298
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    • 2014
  • We investigate the effects of cryoprotectant mixtures on the quality of sand lance surimi (SLS) during storage at $-30^{\circ}C$. We monitored freeze-induced denaturation of myofibrillar protein in SLS and examined the texture profile of SLS gel. Freeze-induced denaturation was assessed by evaluating SLS $Ca^{+2}$-ATPase activity. SLS gels prepared with sorbitol or sucrose and a mixture of both as cryoprotectant. Higher concentrations of cryoprotectants resulted in significantly higher residual SLS $Ca^{+2}$-ATPase activity at the same storage time (P < 0.05). Residual $Ca^{2+}$-ATPase activity of SLS prepared with sorbitol was higher than that of sucrose when cryoprotectant concentration and storage period were same. A blend of sorbitol and sucrose resulted in a stronger cryoprptective effect of SLS myofibrillar protein than did sorbitol or sucrose alone. The presence of a phosphate compound in SOP (3% sorbitol + 0.2% phosphate compound) resulted in higher SLS $Ca^{2+}$-ATPase activity than that of did 5% sorbitol. The hardness, brittleness, and elasticity values and a folding test of the SLS gels were significantly affected by cryoprotectant concentrations and the storage time. Preference scores and acceptance for texture in a sensory evaluation of the SLS gels increased with increasing sorbitol or sucrose concentration.

A Study on the Fabrication of p-type poly-Si Thin Film Transistor (TFT) Using Sequential Lateral Solidification(SLS) (SLS 공정을 이용한 p-type poly-Si TFT 제작에 관한 연구)

  • Lee, Yun-Jae;Park, Jeong-Ho;Kim, Dong-Hwan
    • The Transactions of the Korean Institute of Electrical Engineers C
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    • v.51 no.6
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    • pp.229-235
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    • 2002
  • This paper presents the fabrication of polycrystalline thin film transistor(TFT) using sequential lateral solidification(SLS) of amorphous silicon. The fabricated SLS TFT showed high Performance suitable for active matrix liquid crystal display(AMLCD). The SLS process involves (1) a complete melting of selected area via irradiation through a patterned mask, and (2) a precisely controlled pulse translation of the sample with respect to the mask over a distance shorter than the super lateral growth(SLG) distance so that lateral growth extended over a number of iterative steps. The SLS experiment was performed with 550$\AA$ a-Si using 308nm XeCl laser having $2\mu\textrm{m}$ width. Irradiated laser energy density is 310mJ/$\textrm{cm}^2$ and pulse duration time was 25ns. The translation distance was 0.6$\mu$m/pulse, 0.8$\mu$m/pulse respectively. As a result, a directly solidified grain was obtained. Thin film transistors (TFTs) were fabricated on the poly-Si film made by SLS process. The characteristics of fabricated SLS p -type poly-Si TFT device with 2$\mu\textrm{m}$ channel width and 2$\mu\textrm{m}$ channel length showed the mobility of 115.5$\textrm{cm}^2$/V.s, the threshold voltage of -1.78V, subthreshold slope of 0.29V/dec, $I_{off}$ current of 7$\times$10$^{-l4}$A at $V_{DS}$ =-0.1V and $I_{on}$ / $I_{off}$ ratio of 2.4$\times$10$^{7}$ at $V_{DS}$ =-0.1V. As a result, SLS TFT showed superior characteristics to conventional poly-Si TFTs with identical geometry.y.y.y.

Variations of Oral Cavity Environment according to Sodium Lauryl Sulfate Concentration of Toothpaste (세치제의 Sodium Lauryl Sulfate함유 정도에 따른 구강환경변화)

  • Jeong, Hwa-Yeong;Kim, Yoon-Shin;Jeong, Mi-Ae
    • The Journal of the Korea Contents Association
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    • v.10 no.8
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    • pp.240-248
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    • 2010
  • This study used 3 kinds of experimental toothpaste prepared with different contents of SLS, i.e. A (0%), B (1.1%), C (2.2%). These 150 subjects were subdivided again into three groups. After 4 weeks application of the three kinds of toothpaste, it was found that there were differences in dental plaque test (PHP) among the 3 groups; that is; a higher SLS content was associated with a lower PHP index. In addition, it was found that all 3 groups showed a reduction in simplified oral hygiene index (OHI-S). After 4 weeks application of the three groups of toothpaste, it was found that a higher SLS content was associated with a lower salivary flow, but there was no significant variation in salivary mucosity and pH. Further, it was found that SLS was negatively correlated with salivary flow, which supports the theory that SLS may induce xerostomia.

Uniformity improvement of SLS poly-Si TFT AMOLED

  • Park, Hye-Hyang;Lee, Ki-Yong;Kim, Kyoung-Bo;Kim, Hye-Dong;Chung, Ho-Kyoon
    • 한국정보디스플레이학회:학술대회논문집
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    • 2005.07a
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    • pp.790-792
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    • 2005
  • In this work we attempted to find the origin of brightness non-uniformity in SLS poly-Si TFT AMOLED. By developing a suitable SLS process with a compensation circuit, we have successfully improved the non-uniformity from 40% to 1.7%. We could fabricate 2.2" AMOLED display using SLS poly-Si.

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The Effect of Crystallization of SLS Glass for Bulletproof Materials (방탄소재 활용을 위한 SLS 유리 결정화의 효과)

  • Shim, Gyu-In;Kim, Tae-Yoon;Choi, Se-Young
    • Journal of the Korea Institute of Military Science and Technology
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    • v.13 no.1
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    • pp.120-125
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    • 2010
  • For application of transparent bulletproof materials, the SLS(soda-lime-silicate) glass was heated by 2-step crystallization. The DTA curve for SLS glass revealed the nucleation and crystal growth temperature at about $575^{\circ}C$ and $675^{\circ}C$, respectively. The crystallized glass was heated at various conditions(temperature, time). As a result, the maximum nucleation and crystal growth rates were $3.8\times10^5/mm^3{\cdot}hr$ at $575^{\circ}C$ and 20.58nm/min at $680^{\circ}C$, respectively. The bending strength, fracture toughness and vickers hardness were 451.7MPa, $0.9388MPa{\cdot}m^{1/2}$, and $693.9H_v$ which were 201%, 31%, and 22% higher than parent glass, respectively. Surface image and transmittance of crystallized SLS glass were analyzed by optical microscopy and UV/VIS/NIR spectrophotometer. Transmittance of crystallized SLS glass at visible-range(200~800nm) was not changed.

A rare case of Sjogren-Larsson syndrome with recurrent pneumonia and asthma

  • Tavasoli, Azita;Sayyahfar, Shirin;Behnam, Babak
    • Clinical and Experimental Pediatrics
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    • v.59 no.6
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    • pp.276-279
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    • 2016
  • Sjogren-Larsson syndrome (SLS) is a rare autosomal recessive neurocutaneous disorder with worldwide incidence of 0.4 per 100,000 people. It is characterized by the triad of congenital ichthyosis, spastic diplegia or quadriplegia, and mental retardation. Herein we report a 2-year-old male child with SLS, asthma, and recurrent pneumonia. SLS was confirmed by a molecular genetics study that revealed a deletion mutation in the ALDH3A2 gene. An ALDH3A2 gene mutation results in dysfunction of the microsomal enzyme fatty aldehyde dehydrogenase and impaired metabolism and accumulation of leukotriene B4, which is a key molecule and a pro-inflammatory mediator in developing allergic diseases, especially asthma. An increased level of leukotriene B4 has been reported in SLS patients. As far as we are aware, this is the first report of SLS associated with asthma and recurrent pneumonia. In conclusion, pediatricians should be aware of and evaluate patients with SLS for possible associated asthma and allergic disorders.

Development of Thin and Lightweight Bulletproof Windows Using Strengthened SLS Glass by Ion Exchange

  • Shim, Gyu-In;Kim, Seong-Hwan;Ahn, Deok-Lae;Park, Jong-Kyoo;Choi, Se-Young
    • Journal of the Korean Ceramic Society
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    • v.52 no.2
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    • pp.123-127
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    • 2015
  • Soda-lime silicate (SLS) glass was strengthened by ion exchange for application of thin and lightweight bulletproof windows. The optimal conditions for ion exchanged SLS glass (thickness of 3 and 10 mm) at $480^{\circ}C$ were 10 and 17 min, respectively. The Vickers hardness values of the strengthened SLS glass samples with thicknesses of 3 and 10 mm were $5.9{\pm}0.22$ and $6.7{\pm}0.17GPa$, respectively, which values were about 22% higher than those of parent SLS glass. By laminating a multilayer defense film and polycarbonate sheet with ion exchanged SLS glass, we were able to make a thin and lightweight bulletproof window (24.25 mm, 4.57 kg, $50.06kg/m^2$, $V_{50}$ 901.8 m/s). As a result, the thickness of the bulletproof window was decreased by about 39% from 40 to 24.25 mm. The light transmittance in the visible range satisfied the standard (over 76%) for bulletproof windows.

Uniformity Improvement of SLS poly-Si TFT AMOLED

  • Park, Hye-Hyang;Lee, Ki-Yong;Kim, Kyoung-Bo;Kim, Hye-Dong;Chung, Ho-Kyoon
    • Journal of Information Display
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    • v.6 no.3
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    • pp.22-25
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    • 2005
  • In this study, we attempted to find the origin of brightness non-uniformity in SLS poly-Si TFT AMOLED. By developing a suitable SLS process with a compensation circuit, we successfully improved the non-uniformity from 40% to 1.7%. In addition, we were able to fabricate 2.2" AMOLED display using SLS poly-Si.

Growth of SiC Nanotube by SLS (Solid-Liquid-Solid) Growth Mechanism (SLS(Solid-Liquid-Solid) 성장기구에 의한 탄화규소 나노튜브의 성장)

  • Rho Dae-Ho;Kim Jae-Soo;Byun Dong-Jin;Yang Jae-Woong;Kim Na-Ri
    • Korean Journal of Materials Research
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    • v.14 no.2
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    • pp.83-89
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    • 2004
  • SiC nanotubes were synthesized by SLS growth mechanism using various metal catalysts. Synthesized nanotubes had mean diameters of 20~50 nm and several $\mu\textrm{m}$ length. The kind of catalysts affected microstructures of SiC nanotubes by different diffusion routes. These differences are attributed to catalysts' physical properties and relative activities to the graphite substrate. Fe acted as a good catalyst of SLS growth mechanism. But in case of Ni, SiC nanotubes grew slowly. Optical property was measured by photoluminescence measurement. Relatively broad peak was obtained and mean peak positioned at about 430 nm. This result was the same as other nanocrystalline SiC materials, but was different from the results of bulk SiC probably due to quantum confinement effect and defect in the grown SiC nanotube.

The Change of Salivary and Oral Bacteria Amount by Composition of SLS Contents of Toothpaste (세치제내 SLS함유에 따른 타액과 세균변화)

  • Shim, Youn-Su;Jeong, Mi-Ae;Jeong, Sang-Hee
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.11 no.9
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    • pp.3341-3346
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    • 2010
  • Dentifrices comtaining SLS of 2.2% and 0.0% were applied to 60 subjects for 4 weeks in this study. Dentifrice is used for salivary and oral bacteria amount change according to its SLS contents in toothpaste. The results were as follows. Anaysis of LSL contents befor and after the after experiment in salivary and bacterial count oral cavity didn't show significant difference in time interval. There was no correlation between salivary flow rate and bacterial count in the oral cavity according to content of SLS. Dentifrice of 2.2% content satisfied the subjects much more than that of 0.0% content(p<0.001).