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정희석,챨리코즈리크,헬므쓰레슈 한국목재공학회 1984 목재공학 Vol.12 No.1
For the modification of kiln drying schedule, relations between resistance to drying Rd and the moisture content or drying times were found far 4/4, 6/4 and 8/4 green Douglas fir heartwood by the mild drying schedule and the severe drying schedule until the average moisture content was about 10 percent. The results of this study were as follows. 1. Resistance to drying of thicker lumber was higher than that of thinner lumber and resistance to drying of three different thicknesses were negligible between the mild-and the severe drying schedule. The relationships between resistance to drying and two schedules or three thcknesses of lumber were Rd₁= 1.830 x 10^5 M^(-2.24) for 4/4 lumber by the mild drying schedule, Rd₂= 1.822 x 10^5 M^(-2.25) for 4/4 lumber by the severe drying schedule, Rd₃= 2.352 x 10^5 M^(-2.14) for 6/4 lumber by the mild drying schedule, Rd₄= 3.457 x 10^5 M^(-2.27) for 6/4 lumber by the severe drying schedule, Rd_5 = 1.317 x 10^6 M^(-2.56) for 8/4 lumber by the mild drying schedule, Rd_6 = 8.267 x 10^5 M^(-2.40) for 8/4 lumber by the severe drying schedule. 2. Thinner 3umber exhibited lower level of moisture content and shorter drying time required at intersection point between the moisture content and resistance to drying as a function of drying time than those of thicker lumber. Drying time of mild drying was longer than that of severe drying and similar to the level of moisture content at intersection point.
Sarzsinszky Eszter,Lupinek Christian,Vrtala Susanne,Huang Huey-Jy,Hofer Gerhard,Keller Walter,Chen Kuan-Wei,Panaitescu Carmen Bunu,Resch-Marat Yvonne,Zieglmayer Petra,Zieglmayer René,Lemell Patrick,Ho 대한천식알레르기학회 2021 Allergy, Asthma & Immunology Research Vol.13 No.1
Arginine kinase (AK) was first identified as an allergen in the Indian-meal moth and subsequently shown to occur as allergen in various invertebrates and shellfish. The cDNA coding for AK from the house dust mite (HDM) species Dermatophagoides pteronyssinus, Der p 20, has been isolated, but no recombinant Der p 20 (rDer p 20) allergen has been produced and characterized so far. We report the expression of Der p 20 as recombinant protein in Escherichia coli. rDer p 20 was purified and shown to be a monomeric, folded protein by size exclusion chromatography and circular dichroism spectroscopy, respectively. Using AK-specific antibodies, Der p 20 was found to occur mainly in HDM bodies, but not in fecal particles. Thirty percent of clinically well-characterized HDM allergic patients (n = 98) whose immunoglobulin E (IgE) reactivity profiles had been determined with an extensive panel of purified HDM allergens (Der f 1, 2; Der p 1, 2, 4, 5, 7, 10, 11, 14, 15, 18, 21, 23 and 37) showed IgE reactivity to Der p 20. IgE reactivity to Der p 20 was more frequently associated with lung symptoms. AKs were detected in several invertebrates with specific antibodies and Der p 20 showed IgE cross-reactivity with AK from shrimp (Litopenaeus vannamei). Thus, Der p 20 is a cross-reactive HDM allergen and may serve as a diagnostic marker for HDM-induced lung symptoms such as asthma.