http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
ELLIPTIC EQUATIONS WITH COMPACTLY SUPPORTED SOLUTIONS
Arena, Orazio,Giannotti, Cristina Korean Mathematical Society 2013 대한수학회지 Vol.50 No.2
For any $p{\in}(1,2)$ and arbitrary $f{\in}L^p(\mathbb{R}^2)$ with compact support, it is proved that there exists a pair (L, $u$), with L second order uniformly elliptic operator and $u{\in}W_0^{2,p}(\mathbb{R}^2)$ such that $Lu=f$ a.e. in $\mathbb{R}^2$.
Romero-Arenas Omar,Amaro-Leal Luis Josué,Rivera Antonio,Parraguirre-Lezama Conrado,Sánchez-Morales Primo,Villa-Ruano Nemesio 한국응용곤충학회 2020 Journal of Asia-Pacific Entomology Vol.23 No.3
This investigation reports on the biological control of Sphenarium purpurascens by using different concentrations of conidia from a native strain of Beauveria bassiana (MABb1) isolated in Puebla, Mexico under laboratory and in situ conditions. Formulations containing this native strain combined with two mesoporous materials (diatomaceous earth “D” and zeolite “Z”) were assayed in order to determine their effect on the mortality of the grasshopper. Concentrations of 3.67 × 108 to 10.30 × 108 conidia mL−1 caused a substantial mortality rate in the fourth-instar nymphs and adults of S. purpurascens. The observed mortality was directly proportional to the concentration of conidia. Under controlled conditions, the highest specific death rate K(d−1) was 0.78 for the formulation containing Z + D + MABb1 at 72 h post-infection. The formulations of D + MABb1 and Z + D + MABb1 caused a noticeable decrease in the population of grasshoppers in the experimental plots with statistical significant differences (α < 0.05). Interestingly, an increase in the mortality of S purpurascens occurred in July, August and September 2017 when the highest incidence of the grasshopper was recorded. Remarkably, the treatment based on Z + D + MABb1, produced an improvement in the yields of experimental maize plots (7847.4 ± 0.70 Kg ha−1) in comparison to control plots (4453.9 ± 0.50 Kg ha−1). These favorable consequences are reported for the first time in corn crops from Mexico.
Elliptic equations with compactly supported solutions
Orazio Arena,Cristina Giannotti 대한수학회 2013 대한수학회지 Vol.50 No.2
For any p ∈ (1, 2) and arbitrary f ∈ Lp(R2) with compactsupport, it is proved that there exists a pair (L, u), with L second orderuniformly elliptic operator and u ∈ W20 ,p(R2) such that Lu = f a.e. in R2.
Minerva C. Arenas,Edwin R. Tadiosa,Melsergio T. Arocena,Carlomar H. Nortez,Mark Lesther V. Reyes,Renato G. Reyes 한국버섯학회 2017 버섯 Vol.21 No.2
Research on the useful mushroom was done at Aurora Memorial National Park (AMNP). The Park is situated in Central Luzon Region with a total land area of 5,676 hectares. AMNP has no distinct wet and dry season thus provides a favorable climate, which promotes the growth of useful mushrooms. The photo-documentation and collections were performed to assess diversity. Five Transect Lines (TL) were laid out in five areas, with 20m x 30m quadrat and interval of 100 meters between quadrats. The study resulted in the identification of 36 families, 53 genera, and 104 species of which 97 are basidiomycetes and 6 are ascomycetes. Simpson’s and Shannon diversity indexes resulted in 0.7254 and 1.4295, respectively. In both indexes, useful mushrooms at AMNP showed moderately diverse. While the evenness revealed 0.1565 indicating low species evenness in each TL. Among the significant findings revealed two new possible new species of Microporus and Cymatoderma.
Irene Barrios de Arenas,Karem Noris-Suárez,Maritza Vasquez,Yotselys López,Thalia San Antonio 한양대학교 세라믹연구소 2010 Journal of Ceramic Processing Research Vol.11 No.2
A treatment study evaluates glass and glass-ceramics of the Na2O·CaO·K2O·MgO·SiO2·P2O5 system, modified with B2O3, Al2O3or B2O3/Al2O3 up to 0.66. Both, bioactivity using simulated body fluid (SBF) immersion and mineral nodule formation using calvaria derived osteoblasts, were tested. The surface structure changes were examined by SEM-EDX line scan X-ray microanalysis and calcium deposition by the alizarin-red test. It was found that all compositions of glasses as well as glassceramics reacted with the SBF, allowing the development of a SiO2 rich layer. In some cases the presence of a rich calcium and phosphorous layer was observed, that according to other studies, corresponds to the apatite layer identified in previous studies. This result suggests a bioactivity behavior, with the exception of the glass containing B2O3/Al2O3 = 0.66 and the glassceramic of the same composition with a 2nd heat treatment. The composition containing B2O3/Al2O3 = 0.66 showed the best biocompatibility with hydroxyapatite nodule formation on its surface, especially on the glass-ceramics.
Sebastia Sabater,Meritxell Arenas,Roberto Berenguer,Ignacio Andres,Esther Jimenez-Jimenez,Ana Martos,Jesus Fernandez-Lopez,Mar Sevillano,Angeles Rovirosa 대한암학회 2015 Cancer Research and Treatment Vol.47 No.3
Purpose Association between body mass index (BMI) and doses in organs at risk during postoperative vaginal cuff brachytherapy (VCB) treatment has not been evaluated. The aim of this study was to analyse the impact of BMI on the dose delivered to bladder and rectum during high-dose-rate VCB using computed tomography (CT) scans at every fraction. Materials and Methods A retrospective analysis of 220 planning CT sets derived from 59 patients was conducted. Every planning CT was re-segmented and re-planned under the same parameters. Rectum and bladder dose-volume histogram values (D0.1cc, D1cc, and D2cc) were extracted and evaluated. The mean values for all applications per patient were calculated and correlated with BMI, as well as other factors influencing rectal and bladder doses. Multiple regression analysis performed to model organ at risk dose-volume parameters. Results According to World Health Organization (WHO), 6.8% of patients were normal, 35.6% were overweight, and 57.6% were class I obese. Median rectal doses were 133.5%, 110.9%, and 99.3% for D0.1cc, D1cc, and D2cc, respectively. The corresponding median bladder doses were 96.2%, 80.6%, and 73.3%, respectively. BMI did not show significant association with rectal doses. However, BMI did show a significant association with evaluated bladder dose metrics (D0.1cc, r=–0.366, p=0.004; D1cc, r=–0.454, p < 0.001; D2cc, r=–0.451, p < 0.001). BMI was retained in the multivariate regression models (D0.1cc, p=0.004; D1cc, p < 0.001; D2cc, p=0.001). Conclusion In this group of Mediterranean, overweight, and moderately obese patients, BMI showed association with lower bladder dose values, but not with rectal doses.