Kyungpook National University

About: Kyungpook National University is a education organization based out in Daegu, South Korea. It is known for research contribution in the topics: Population & Large Hadron Collider. The organization has 20497 authors who have published 42107 publications receiving 834608 citations.

Enhanced skin adhesive patch with modulus-tunable composite micropillars.

Abstract: Modulus-tunable composite micropillars are presented by combining replica molding and selective inking for skin adhesive patch in "ubiquitous"-health diagnostic devices. Inspired from hierarchical hairs in the gecko's toe pad, a simple method is presented to form composite polydimethylsiloxane (PDMS) micropillars that are highly adhesive (∼1.8 N cm(-2) ) and mechanically robust (∼30 cycles).

Genomic-assisted haplotype analysis and the development of high-throughput SNP markers for salinity tolerance in soybean

Abstract: Soil salinity is a limiting factor of crop yield. The soybean is sensitive to soil salinity, and a dominant gene, Glyma03g32900 is primarily responsible for salt-tolerance. The identification of high throughput and robust markers as well as the deployment of salt-tolerant cultivars are effective approaches to minimize yield loss under saline conditions. We utilized high quality (15x) whole-genome resequencing (WGRS) on 106 diverse soybean lines and identified three major structural variants and allelic variation in the promoter and genic regions of the GmCHX1 gene. The discovery of single nucleotide polymorphisms (SNPs) associated with structural variants facilitated the design of six KASPar assays. Additionally, haplotype analysis and pedigree tracking of 93 U.S. ancestral lines were performed using publically available WGRS datasets. Identified SNP markers were validated, and a strong correlation was observed between the genotype and salt treatment phenotype (leaf scorch, chlorophyll content and Na(+) accumulation) using a panel of 104 soybean lines and, an interspecific bi-parental population (F8) from PI483463 x Hutcheson. These markers precisely identified salt-tolerant/sensitive genotypes (>91%), and different structural-variants (>98%). These SNP assays, supported by accurate phenotyping, haplotype analyses and pedigree tracking information, will accelerate marker-assisted selection programs to enhance the development of salt-tolerant soybean cultivars.

Identification techniques for highly boosted W bosons that decay into hadrons

Abstract: In searches for new physics in the energy regime of the LHC, it is becoming increasingly important to distinguish single-jet objects that originate from the merging of the decay products of W bosons produced with high transverse momenta from jets initiated by single partons. Algorithms are defined to identify such W jets for different signals of interest, using techniques that are also applicable to other decays of bosons to hadrons that result in a single jet, such as those from highly boosted Z and Higgs bosons. The efficiency for tagging W jets is measured in data collected with the CMS detector at a center-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 19.7 inverse femtobarns. The performance of W tagging in data is compared with predictions from several Monte Carlo simulators.

Kinetics of selective CO oxidation in hydrogen-rich mixtures on Pt/alumina catalysts

Abstract: Selective CO oxidation on Pt/alumina catalysts in hydrogen-rich mixtures was studied in a temperature range of 150–350 °C and a concentration range of 0.5–2% for oxygen and carbon monoxide. The intrinsic kinetics of the CO oxidation was well described by a simple power-law expression with an activation energy of 78 kJ/mol and the reaction orders of −0.51 and 0.76 for the CO and the oxygen partial pressure, respectively. The selectivity showed a maximum with increasing temperature and was dependent mainly on the feed composition and the reaction temperature. But the selectivity did not show any appreciable change with respect to flow rate, indicating a constant selectivity along the catalyst bed, and Pt loading of the catalyst in the range of 0.04–1 wt.%, even though the 1 wt.% catalyst exhibited severe internal diffusional limitation. For this, the selectivity once measured for a Pt/alumina catalyst as a function of feed composition and temperature could be used for other Pt/alumina catalysts of different activities and for different conversion levels. A reactor model with an approximation of the internal effectiveness factor was developed to simulate the integral reactor performance with the 1 wt.% catalyst.