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Cu-benzene–1, 3, 5-tricarboxylate (Cu-BTC) coating on carbon fiber paper (CFP@Cu-BTC) is synthesized by using the seed-induced hydrothermal method to improve H 2 adsorption capacity, CO 2 /H 2 selectivity, thermal and electrical conductivity of pure Cu-BTC. The electrical conductivity, effective thermal conductivity (ETC), CO 2 and H 2 adsorption capacity of CFP@Cu-BTC composites synthesized for 3, 9, 18, and 24 h are investigated, respectively. Results show the H 2 adsorption capacity of CFP@Cu-BTC (9 h) is similar to that of pure Cu-BTC. The value of the selectivity of equimolar CO 2 /H 2 (18 h) is 58–209 at 0–100 kPa and 273.15 K. The ETC of CFP@Cu-BTC is 17–25 times higher than that of pure Cu-BTC. The electrical conductivity is 1.3 × 1011–1.6 × 1011 times higher compared to that of pure Cu-BTC. The CFP@Cu-BTC composite can be used as a promising material for H 2 storage and electrodes of ultra-capacitor. • Cu-BTC/CFP is obtained by the seeds induced hydrothermal method. • The selectivity of equimolar CO 2 /H 2 (18 h) can reach up to 58–209. • The thermal conductivity of Cu-BTC/CFP is much higher than that of pure Cu-BTC. • The electric conductivity of Cu-BTC/CFP is 1.3 × 105 S/m when loading 40 wt% Cu-BTC. [ABSTRACT FROM AUTHOR]

Abstract: In natural settings, the occurrence of unpredictable infrequent events is often associated with emotional reactions in the brain. Previous research suggested a special sensitivity of the brain to valence differences in emotionally negative stimuli. Thus, the present study hypothesizes that valence changes in infrequent negative stimuli would have differential effects on visual novelty processing. Event-related potentials (ERPs) were recorded for highly negative (HN), moderately negative (MN) and Neutral infrequent stimuli, and for the frequent standard stimulus while subjects performed a frequent/infrequent categorization task, irrespective of the emotional valence of the infrequent stimuli. The infrequent–frequent difference waves, which index visual novelty processing, displayed larger N2 amplitudes during HN condition than during MN condition which, in turn, elicited greater N2 amplitude than the Neutral condition. Similarly, in the infrequent–frequent difference waves, the frontocentral P3a and parietal LPC (late positive complex) elicited by the HN condition were more negative than those by MN stimuli, which elicited more negative amplitudes than the Neutral condition. This suggests that negative emotions of diverse strength, as induced by negative stimuli of varying valences, are clearly different in their impact on visual novelty processing. Novel stimuli of increased negativity elicited more attentional resources during the early novelty detection, and recruited increased inhibitive and evaluative processing during the later stages of response decision and reaction readiness, relative to novel stimuli of reduced negativity. [Copyright &y& Elsevier]

Abstract: Numerous studies showed enhanced sensitivity of females to emotional stimuli relative to males using multiple tasks. However, in the present study, two event-related potential (ERP) experiments targeting the impact of gender on rare stimulus processing both showed enhanced sensitivity of females to rare stimulus that is neutral, irrelevant to emotion. Subjects were required to press different keys for standard and rare pictures in Experiment 1, and to do nothing but to passively view the pictures in Experiment 2. Rare pictures elicited more intense pop-out effects in females, at both neuroelectrical (multiple levels of ERP analyses) and behavioral (response latencies and pop-out assessment) levels across experiments. Thus, females are equipped with enhanced sensitivity to rare, emotion-irrelevant stimuli relative to males, probably as a result of evolutionary adaptation. This effect is ought to be considered in studies that use an oddball paradigm. [ABSTRACT FROM AUTHOR]

Abstract: The structure and magnetic properties of the melt-spun ribbons of Tb0.27Dy0.73Fe x alloy are investigated as a function of various wheel speeds during melt-quenching using a single-roll technique. It is found that Tb0.27Dy0.73Fe x alloy is difficult to be fabricated as amorphous state by using the melt-quenching method. X-ray diffractions show that all these ribbons for x=1.7−2.0 are the MgCu2-type phase at the wheel speed of 45ms−1. For Tb0.27Dy0.73Fe x alloy, the high wheel speed is beneficial to eliminate the RFe3 phase and form the perfect MgCu2-type phase. Compared with the bulk of Tb0.27Dy0.73Fe1.95, these ribbons exhibit higher intrinsic coercivity value and their saturation magnetizations increase as well. The magnetostriction of Tb0.27Dy0.73Fe1.95 composite with 4% epoxy resin is 640×10−6 at 900kAm−1. [Copyright &y& Elsevier]