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        검색결과 3

        1.
        2025.10 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The adsorption of a single pollutant can no longer meet the increasingly strict requirements of environmental governance. The easy loss and secondary pollution of powdered adsorbents further hinder the industrialization of adsorption technology. Through in-situ oxidative polymerization and hydrothermal deposition, polyaniline (PANI) and magnetic Fe3O4 nanoparticles were loaded onto a polyurethane (PU) matrix to prepare polyurethane-polyaniline /Fe3O4 (PU-P/F) porous composite loading materials, aiming to simultaneously remove multiple pollutants in wastewater and solve the problem of effective solid– liquid separation at the same time. The synthesized composite material exhibited a high specific surface area (30.08 m2/ g) and a hierarchical pore structure. Within a wide pH range (5–7), it showed a synchronous adsorption and removal effect on typical pollutants (ARG, Cr (VI), NO3 −-N, TP, MB, NH4 +-N) in printing and dyeing wastewater. Equilibrium can be reached within 0.5–2 h, following pseudo-second-order kinetics and Langmuir isotherm model, indicating mainly monolayer chemical adsorption. The continuous column adsorption regeneration test showed that for the simulated mixed wastewater, the continuous adsorption reached saturation after 660 min (53 chromatographic columns), while for the actual wastewater, the continuous column adsorption reached saturation after 535 min (43 chromatographic columns), and the efficiency remains after 8 regenerations. FT-IR and XPS confirmed the REDOX reaction between the –NH—group in polyaniline and Fe in Fe3O4, facilitating the adsorption and transformation of pollutants, while DFT calculations confirmed the strong interaction between polyaniline and anionic pollutants. This research provides ideas for solving the engineering bottleneck of adsorption technology.
        5,100원
        2.
        2018.07 구독 인증기관·개인회원 무료
        Over the past decade, the field of sport exercise in China gets increasingly popular, resulting in a nationwide exercise fashion (Schulenkorf, Sherry, & Rowe, 2016; Yu, Li, Liu, & Su, 2015). With this new emerging shift, this study tested the proposed structural model, and specifically tested the mediating effects of dimensions of sport team attachment between runners’ team satisfaction and their runner team building behaviors (Morhart, Herzog, & Tomczak, 2009). With a sample size of 301, three dimensions of team attachment, team identity, social bonding, and team expectation were found to be significant influencing runners’ in-role team building behavior and participation in the development of this runner team. Other important findings and implications were further discussed.
        3.
        1995.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Soybean has been cultivated in China for 5,000 years. The soybean cyst neamtode (SCN), Heterodra glycines, was recongnized in Northeastern China in 1899. Currently, it is known to occur in 12 provinces. The biology of SCN was investigated in several provinces. Six races of SCN were identified (race 1, 2, 3, 4, 5 and 7). About f10,000 soybean germplasm lines were evaluated for their resistance to race 1, 3, 4 and 5 of SCN. At least two black-seeded cultivars are resistant to all four races. Several tolerant soybean cultivars with yellow seed coat were released and are in production. Additional resistant cultivars are being developed. Nematicides were not applied in production Potential biocontrol agents and related aspects are being investigated.
        4,000원