Structural and Magnetic Properties of Rare Earth Doped Multilayer Nanocable Arrays.

The structure and anisotropic magnetization of One-dimensional (1D) Nd/Co/PA66 coaxial nanocables prepared by a low cost physical infiltration and electrodeposition methods are investigated. The preparation of Co nanotubes, Co/PA66 two-layer nanotubes and Nd/Co/PA66 three-layer nanocales is described, respectively. The structure, chemical composition and magnetic properties of various nanomaterials were investigated. The results show that the magnetic properties were affected by the rare earth metal Nd and the structural properties. The residual magnetization ratio of Nd/Co/PA66 nanocables is the biggest due to the synergistic effect of Nd and Co. In addition, the magnetization processes of the nanostructure were discussed in detail. We believe that these methods may provide an idea for ferromagnetic alloys and permanent magnet material and suitable for future applications in perpendicular recording media.

Potassium-rich brine deposit in Lop Nor basin, Xinjiang, China.

Lop Nor potash deposit is the largest sulfate-type liquid potassium salt deposit in China, consisting of three areas: Xinqing platform, Luobei depression, and Tenglong platform. In this study, the geological background, basin structure, and fracture system of the deposit, along with the brine storage size of the three ore bodies are introduced in detail, using underground brine elevation models of the mining areas. We collected 91 samples of brine from long-term observation boreholes in the Lop Nor ore district, and analyzed their ion contents. The KCl content of the brine varies from 1% to 1.45% and that of B2O3 varies from 1900 to 4500 mg/L, which are higher than the cut-off for Chinese industrial mining grades. The spatial distributions of KCl and B2O3 contents in different ore beds were plotted, and the distributions of different grades of K+ and B3+ were revealed.

Effect of Each Layer on Anisotropic Magnetic Properties of Nd/Fe/Polyamide 66 Three-Layer Coaxial Nanocables.

One-dimensional (1D) Nd/Fe/polyamide 66 (Nd/Fe/PA66) three-layer coaxial nanocable arrays with high aspect ratio and highly anisotropic magnetization were successfully prepared via layer-by-layer deposition in the anodic aluminum oxide template. The morphology, chemical composition, and magnetic properties of Nd/Fe/PA66 nanocables were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and vibrating sample magnetometry . The effects of 1D nanocables on the magnetic properties of the assembled ordered arrays have been systematically investigated. The structural properties of these nanostructures are investigated as a function of the geometrical parameters. The magnetic anisotropy of Nd/Fe/PA66 nanocables has been significantly enhanced owing to the doped Nd that possesses a larger spin-orbital coupling and leads to a synergistic effect with Fe to enhance anisotropy energy.

[Optimization of extraction process of Dandelions (Taraxacum Weber)].

OBJECTIVE: To optimize the extraction conditions of Dandelions (Taraxacum Weber). METHOD: Using the uniform design, the content of total flavonoids and quercetin were detected to investigate the extraction process of Dandelions. RESULT: The ethanol concentration and the ethanol volume in the uniform test impacted the test mostly. The best extraction process of Dandelions was obtained as following: 13 times of 85% ethanol as the solvent, extraction for 2 times and 1 h for each time. CONCLUSION: The extraction ratio of total flavonoids and quercetin are higher according to the above extraction process.

The link of sexual sensation seeking to acceptance of cybersex, multiple sexual partners, and one-night stands among Taiwanese college students.

BACKGROUND: Young people in Taiwan have become more liberal and active toward sex. Despite heavy investments of money, time, and effort, sexual education programs have generally lagged expectations. PURPOSE: Personality traits such as sexual sensation seeking are found to be significantly associated with risky sexual behaviors. This study, therefore, attempts to explore the link of sexual sensation seeking to acceptance by Taiwanese college students of cybersex, multiple sexual partners, and one-night stands. METHODS: A cross-sectional study was conducted using the multistage cluster sampling method. Five hundred sixteen students recruited from eight universities/colleges in Taiwan participated in this study, and 507 completed the self-report questionnaire. The valid response rate was 98.26%. RESULTS: The results reveal that high-sexual-sensation seekers were more likely than low-sexual-sensation seekers to accept cybersex, multiple sexual partners, and one-night stands. CONCLUSIONS/IMPLICATIONS FOR PRACTICE: This study suggests that the designers of campus-based health prevention campaigns should target campaign messages on high-sexual-sensation seekers using novel, thrilling, and complex messages to achieve safe sex educational campaign goals.

Late Eocene to early Oligocene quantitative paleotemperature record: evidence from continental halite fluid inclusions.

Climate changes within Cenozoic extreme climate events such as the Paleocene-Eocene Thermal Maximum and the First Oligocene Glacial provide good opportunities to estimate the global climate trends in our present and future life. However, quantitative paleotemperatures data for Cenozoic climatic reconstruction are still lacking, hindering a better understanding of the past and future climate conditions. In this contribution, quantitative paleotemperatures were determined by fluid inclusion homogenization temperature (Th) data from continental halite of the first member of the Shahejie Formation (SF1; probably late Eocene to early Oligocene) in Bohai Bay Basin, North China. The primary textures of the SF1 halite typified by cumulate and chevron halite suggest halite deposited in a shallow saline water and halite Th can serve as an temperature proxy. In total, one-hundred-twenty-one Th data from primary and single-phase aqueous fluid inclusions with different depths were acquired by the cooling nucleation method. The results show that all Th range from 17.7°C to 50.7°C,with the maximum homogenization temperatures (ThMAX) of 50.5°C at the depth of 3028.04 m and 50.7°C at 3188.61 m, respectively. Both the ThMAX presented here are significantly higher than the highest temperature recorded in this region since 1954 and agree with global temperature models for the year 2100 predicted by the Intergovernmental Panel on Climate Change.