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The Observations of Surface Diffusion in Tungsten and Rhenium in FIM
Orr, K. K.,Tsong, T. T. 한국부식학회 1981 Corrosion Science and Technology Vol.10 No.3
FIM을 사용하여 tungsten 표면에서의 ion 상태로 된 tungsten 그리고 rhenium 원자들의 확산현상 반응에 대해서 고찰했다. Using a field ion microscope (FIM) the inter-atomic interaction between tungsten and tungsten, and tungsten and rhenium was investigated.
Corrosion of Oxygen and Sulfur Systems in Al ,Zn , In
Orr, K. K. 한국부식학회 1981 Corrosion Science and Technology Vol.10 No.3
Al₂O₃-Al₂S₃의 相 관계를 300℃에서부터 1200℃ 사이에서 조사했으며 Al₂O₃의 유황 고용체 (Al₂(O, S)₃)가 물에 녹는 현상을 발견했다. Al₂S₃-ZnS의 상관계를 초기적인 단계에서 실험했으며 ZnAl₂S₄의 intermediate 相툴을 합성했으며 이것은 spinel과 Wurtzite의 결정 구조를 가졌다. ZnAl₂S₄와 ZnI₂S₄의 相관계를 조사했다. Phase relationships of Al₂O₃-Al₂S₃ were investigated between 300℃ and 1200℃. The solid solutions of Al₂ (O,S)₃ were found to be water soluble. As an exploratory work the Al₂S₃-ZnS system was studied resulting in the fact that ZnAl₂S₄ is spinel and wurtzite forms. Furthermore subsolidus phase relations in ZnAl₂S₄-ZnI₂S₄ were studied.
연구논문초록(’81-’90) : Corrosion of Oxygen and Sulfur Systems in Al , Zn , In
Orr, K. K. 한국부식학회 1991 Corrosion Science and Technology Vol.20 No.1
Phase relationships of Al₂O₃-Al₂S₃ were investigated between300C and 1200C. The solid solutions of Al₂(O, S)₃ wem found to be water soluble. As an exploratory work the Al₂S₃ -ZnS system was studied resulting in the fact that ZnAl₂S₄ spinel and wurtzite forms. Furthermore subsolidus phase relations in ZnAl₂S₄-ZnI₂S₄ were studied.
Fine-mapping identifies two additional breast cancer susceptibility loci at 9q31.2
Orr, Nick,Dudbridge, Frank,Dryden, Nicola,Maguire, Sarah,Novo, Daniela,Perrakis, Eleni,Johnson, Nichola,Ghoussaini, Maya,Hopper, John L.,Southey, Melissa C.,Apicella, Carmel,Stone, Jennifer,Schmidt, M IRL Press 2015 Human molecular genetics Vol.24 No.10
<P>We recently identified a novel susceptibility variant, rs865686, for estrogen-receptor positive breast cancer at 9q31.2. Here, we report a fine-mapping analysis of the 9q31.2 susceptibility locus using 43 160 cases and 42 600 controls of European ancestry ascertained from 52 studies and a further 5795 cases and 6624 controls of Asian ancestry from nine studies. Single nucleotide polymorphism (SNP) rs676256 was most strongly associated with risk in Europeans (odds ratios [OR] = 0.90 [0.88–0.92]; <I>P</I>-value = 1.58 × 10<SUP>−25</SUP>). This SNP is one of a cluster of highly correlated variants, including rs865686, that spans ∼14.5 kb. We identified two additional independent association signals demarcated by SNPs rs10816625 (OR = 1.12 [1.08–1.17]; <I>P</I>-value = 7.89 × 10<SUP>−09</SUP>) and rs13294895 (OR = 1.09 [1.06–1.12]; <I>P</I>-value = 2.97 × 10<SUP>−11</SUP>). SNP rs10816625, but not rs13294895, was also associated with risk of breast cancer in Asian individuals (OR = 1.12 [1.06–1.18]; <I>P</I>-value = 2.77 × 10<SUP>−05</SUP>). Functional genomic annotation using data derived from breast cancer cell-line models indicates that these SNPs localise to putative enhancer elements that bind known drivers of hormone-dependent breast cancer, including ER-α, FOXA1 and GATA-3. <I>In vitro</I> analyses indicate that rs10816625 and rs13294895 have allele-specific effects on enhancer activity and suggest chromatin interactions with the <I>KLF4</I> gene locus. These results demonstrate the power of dense genotyping in large studies to identify independent susceptibility variants. Analysis of associations using subjects with different ancestry, combined with bioinformatic and genomic characterisation, can provide strong evidence for the likely causative alleles and their functional basis.</P>
Biomechanical Characterization of a New Locking Loop Stitch for Graft Fixation versus Krackow Stitch
Yasuo Itami,Orr Limpisvasti,Michelle H. McGarry,Nilay A. Patel,Charles C. Lin,Thomas Dooney,Teruhisa Mihata,Masashi Neo,Thay Q. Lee 대한정형외과학회 2023 Clinics in Orthopedic Surgery Vol.15 No.3
Background: The purpose of this study was to quantify and compare the biomechanical characteristics of a new locking loop stitch (LLS), developed utilizing the concepts of both running locking stitch and needleless stitch, to the traditional Krackow stitch. Methods: The Krackow stitch with No.2 braided suture and the LLS with 1.3-mm augmented polyblend suture tape were compared biomechanically. The LLS was performed with single strand locking loops and wrapping suture around the tendon, resulting in half the needle penetrations through the graft compared to the Krackow stitch. Twenty bovine extensor tendons were divided randomly into two groups. The tendons were prepared to match equal thickness and cross-sectional area. Each suture-tendon was stitched and preloaded to 5 N for 60 seconds, cyclically loaded to 20 N, 40 N, and 60 N for 10 cycles each, and then loaded to failure. The deformation of the suture-tendon construct, stiffness, yield load, and ultimate load were measured. Results: The LLS had significantly less deformation of the suture-tendon construct at 100 N, 200 N, 300 N, and at ultimate load compared to the Krackow stitch (Krackow stitch and LLS at 100 N: 1.3 ± 0.1 mm and 1.0 ± 0.2 mm, p < 0.001; 200 N: 3.0 ± 0.3 mm and 1.9 ± 0.2 mm, p < 0.001; 300 N: 5.1 ± 0.6 mm and 2.9 ± 0.4 mm, p < 0.001; ultimate load: 12.8 ± 2.8 mm and 5.0 ± 1.2 mm, p < 0.001). The LLS had significantly greater stiffness (Krackow stitch and LLS: 97.5 ± 6.9 N/mm and 117.2 ± 13.9 N/mm, p < 0.001) and yield load (Krackow stitch and LLS: 66.2 ± 15.9 N and 237.9 ± 93.6 N, p < 0.001) compared to the Krackow stitch. There was no significant difference in ultimate load (Krackow stitch: 450.2 ± 49.4 N; LLS: 472.6 ± 59.8 N; p = 0.290). Conclusions: The LLS had significantly smaller deformation of the suture-tendon construct compared to the Krackow stitch. The LLS may be a viable surgical alternative to the Krackow stitch for graft fixation when secure fixation is necessary.