PCM telemetry data compression study, phase II Quarterly report, 25 Nov. 1965 - 25 Feb. 1966

Model analyses and computer simulations used in data compression study for improved pulse code modulation telemetry link

Child and youth affective computing - challenge accepted

Affective computing has been shown effective and useful in a range of use cases by now, including human–computer interaction, emotionally intelligent tutoring, or depression monitoring. While these could be very useful to the younger among us—including in particular also earlier recognition of developmental disorders, usually research and even working demonstrators have been largely targeting an adult population. Only a few studies, including the first-ever competitive emotion challenge, were based on children’s data. In times where fairness is a dominating topic in the world of artificial intelligence, it seems timely to widen up to include children and youth more broadly as a user group and beneficiaries of the promises affective computing holds. To best support according to algorithmic and technological development, here, we summarize the emotional development of this group over the years, which poses considerable challenges for automatic emotion recognition, generation, and processing engines. We also provide a view on the steps to be taken to best cope with these, including drifting target learning, broadening up on the “vocabulary” of affective states modeled, transfer, few-shot, zero-shot, reinforced, and life-long learning in affective computing besides trustability

The absorption spectra of natural dyes and their suitability as a sensitiser in organic solar cell application

This paper analyzes the suitability of organic dyes (hibiscus, Solanum nigrum, beetroot and eggplant) that are locally available in East Africa for low-budget dye sensitized solar cells (DSSC). The natural dyes were extracted in different ways, where the nightshade berries and eggplant were simply crushed and sieved to obtain their juices, while for hibiscus and beetroot, the fruits was boiled in water and then ethanol. The most  promising results are found from hibiscus extracted in water at 50°C, which exhibit a significantly better performance in Umpp (311.35mV),Impp (236.43.A) and efficiency (0.43%). The results also show that  Solanum nigrum is strong in terms of voltage but poor in terms of current, while Eggplant fails due to a difficult extraction process. Beetroot turns out to be a poor candidate since it contains betanin which does not chelate to the TiO2 surface of the cell. The analysis of Solanum nigrum and hibiscus mixture shows that these mixtures do not lead to a better performance. It is also observed that the process of chelating to the TiO2 shifts the absorption spectra of the dyes slightly towards lower wavelengths. The analysis of the molecular structures of betanin and certain anthocyanins shows the number of =O and -OH groups relative to the total numberof atoms per molecule is higher for most anthocyanins, so that they can connect better to TiO2 than betanin.Key words: Dye-sensitised solar cells, hibiscus, Solanum nigrum, beetroot, eggplant, complex dye- molecule

Fifteen-foot diameter modular space station Kennedy Space Center launch site support definition (space station program Phase B extension definition)

This document defines the facilities, equipment, and operational plans required to support the MSS Program at KSC. Included is an analysis of KSC operations, a definition of flow plans, facility utilization and modifications, test plans and concepts, activation, and tradeoff studies. Existing GSE and facilities that have a potential utilization are identified, and new items are defined where possible. The study concludes that the existing facilities are suitable for use in the space station program without major modification from the Saturn-Apollo configuration