Suchergebnisse

Current and future space missions demand sophisticated on-board data processing functionalities, while low resources consumption remains a constraint. Thus, in-flight reconfigurable architectures are mandatory. Using dynamically reconfigurable FPGAs allows enhancement of on-board processing with unprecedented levels of flexibility, enabling the adaptation of the system regarding functional and fault-tolerance requirements, subjects to change during mission lifetime. Different operational modes can be served, especially for sharing of complex algorithms on limited FPGA resources. For instrument control and data processing of the PHI instrument on the Solar Orbiter mission (SO/PHI), we have partially adapted results of the ESA study for a Dynamically Reconfigurable Processing Module (DRPM) and implemented a flexible, in-flight reconfigurable, power efficient, and radiation tolerant processing module based on Xilinx Virtex-4 SRAM-based FPGAs. While these and the rad-hard Virtex-5 FPGAs have been used for many current space missions, they provide only insufficient logic resources and embedded memory for future usage. Instead, the Kintex Ultrascale XQRKU060 has become a state-of-the-art rad-tolerant FPGA implementation. As the Xilinx Zynq Ultrascale+ shows, integration of dedicated processors is presently used already for military and commercial space applications. After having demonstrated the usage of in-flight reconfigurability for SRAM-based FPGAs on SO/PHI, we have developed a universal platform for high performance on-board data processing, based on cPCI Serial Space standard and state-of-the-art Xilinx Zynq Ultrascale+ MPSoC device on a single board (3U). The cPCI Serial Space standard guarantees the modular extensibility of the system. The board provides two banks of 64 Gibit DDR3-SDRAM memory and TMR NOR-Flash for configuration and SW code, together with various interfaces, like PCIe, SpaceWire, and Ethernet. Optionally, this could be expanded to control NAND-flash mass memory or implemented with an EV-MPSoC ...

Abstract
The attention to semiotic research in Japan and exchanges concerning this within China's academic circles have demonstrated different characteristics at different stages of the development of this field. In the 1980s and 1990s, academic articles relevant to this research mainly focused on the review of Japanese semiotic studies, with frequent exchanges in the academic circles of both countries. However, since the beginning of the new millennium, Chinese scholars of semiotics have begun to apply semiotic theories to Japanese Studies and have obtained a series of concrete and solid academic achievements, shedding new light on Japanese Studies in China.

To increase the effectiveness of fundraising campaigns, many human‐need charities include pictures of beneficiaries in their ads. However, it is unclear when and why the facial expression of these beneficiaries (sad versus happy) may influence the effectiveness of charity ads. To answer these questions, an experiment was conducted to investigate the effect of the facial expression on donation intentions, while considering the moderating role of psychological involvement with charities. It found that psychological involvement with charities moderated the impact of the facial expression on donation intentions in that seeing a picture of a sad versus happy person increased intentions to give among participants with lower levels of psychological involvement, whereas the reverse was true for highly involved participants. The moderating effect of psychological involvement was fully explained by the perceived efficacy of one's donation. The findings not only contribute to our understanding of the effect of the facial expression of people pictured in charity appeals on donation behavior, but also suggest that nonprofits should tailor their ads to target potential donors with various levels of psychological involvement with charities.

Tetracycline (TC) residues are harmful to the environment and human body, so it is necessary to develop a highly sensitive probe for rapid detection of tetracycline residues. In the present paper, a novel dye-doped porous metal&ndash ; organic framework (UiO-66)-based multi-color fluorescent nano-probe was designed for sensitive ratiometric detection of tetracycline (TC). In this probe, dye-molecules doped UiO-66 was used as a fluorescent internal standard, and the externally grafted lanthanide Eu3+ complex was used as response signals. The fluorescence of the Eu3+ complex was selectively enhanced with increasing concentrations of TC, which was accompanied by a visual blue-to-red color switch. The nano-probe had a linear response between 0.1 and 6 &mu ; M with a lowest detection limit of 17.9 nM, which was much lower than the maximum residue limits set by the United States Food and Drug Administration (676 nM) and the European Union (225 nM). The applicability of this method in the analysis of actual samples was evaluated by the determination of TC in honey and milk samples, indicating satisfactory recovery and good reproducibility. In addition, a cost-effective paper-based probe for rapid and visual detection of TC was developed by fixing the nano-probe on filter papers. With the help of a smartphone camera to capture the fluorescence color, and chromaticity analysis software, the calculation and analysis of red (R) and blue (B) values can be realized, which has the potential for real-time visual detection of TC.

Tetracycline (TC) residues are harmful to the environment and human body, so it is necessary to develop a highly sensitive probe for rapid detection of tetracycline residues. In the present paper, a novel dye-doped porous metal–organic framework (UiO-66)-based multi-color fluorescent nano-probe was designed for sensitive ratiometric detection of tetracycline (TC). In this probe, dye-molecules doped UiO-66 was used as a fluorescent internal standard, and the externally grafted lanthanide Eu(3+) complex was used as response signals. The fluorescence of the Eu(3+) complex was selectively enhanced with increasing concentrations of TC, which was accompanied by a visual blue-to-red color switch. The nano-probe had a linear response between 0.1 and 6 μM with a lowest detection limit of 17.9 nM, which was much lower than the maximum residue limits set by the United States Food and Drug Administration (676 nM) and the European Union (225 nM). The applicability of this method in the analysis of actual samples was evaluated by the determination of TC in honey and milk samples, indicating satisfactory recovery and good reproducibility. In addition, a cost-effective paper-based probe for rapid and visual detection of TC was developed by fixing the nano-probe on filter papers. With the help of a smartphone camera to capture the fluorescence color, and chromaticity analysis software, the calculation and analysis of red (R) and blue (B) values can be realized, which has the potential for real-time visual detection of TC.

Abstract
Drawing from research on food consumption, conceptual metaphors, and assimilation and contrast, we examine how exposure to romantic stimuli (e.g., watching a romantic ad, reading a romantic note) affects consumers' subsequent consumption of sweets. Across five studies, we find that romantic stimuli exposure increases sweet food consumption among abstract thinkers but reduces sweet food intake among concrete thinkers. We also identify the moderating role of metaphor content on this finding such that the effects of romantic exposure on the consumption of sweets occur only when the metaphoric association between love and sweetness is highlighted but dissipate when a competing metaphor is accentuated.