284 research outputs found
Important considerations for creative professionals when designing for users with mental health issues
Creative professionals who design products, entertainment, application, websites, and even marketing are gradually beginning to realize the importance of evoking emotions and personalized communication to attract users’ attention and improve the satisfying experience. Emotional-based design can profoundly influence overall user experience since emotions affect decision making, attention, memory, and meaning. Designers often apply emotional design by two main approaches. The first is based on the modification of objects’ aesthetic appearances such as color, shape, and texture. The other focuses on engaging interaction mostly based on technology development (Van Gorp, Adams 2012). Both of these factors have significant effects on people especially for those who have mental health issues. The author bridges scholarship in emotional design and mental health science to empower designers in supporting people with mental health issues
NANO-FE AND MWCNTS BASED NON-ENZYMATIC SENSOR FOR DETERMINATION OF GLUCOSE IN SERUUM
The enzyme sensors based on glucose oxidase have been widely used for the detection of blood glucose. However, the activity of enzyme can be easily affected by temperature, pH, humidity and toxic chemical. Nanostructured metal-oxides have been extensively explored to develop nonenzymatic glucose sensors. An amperometric electrode based on multiwall carbon nanotubes (MWCNTs) and Fe nanoparticles has been successfully fabricated. The electrode exhibits the linear regression equation is: I = -0.1985 + 1.7499 CG (correlation coefficient is 0.9994). Linear response range: 0.2-20.0 mM, sensitivity: 1.75 a/am, the LOD was evaluated to be 0.03 mM according to IUPAC regulations (S/N = 3). Interference tests illustrated that 0.2 me of ascorbic acid and uric acid didn't have effect on the determination of glucose. In the presence of 0.02 M chloride ion, the current signal of 0.2 mM glucose almost keeps unchanged at the sensor, revealing that this new sensor has high tolerance level to chloride ion. The sensor has been successfully applied to determine glucose in the serum samples and obtained consist results with conventional spectrometry
Precise Orbit and Clock Products of Galileo, BDS and QZSS from MGEX Since 2018: Comparison and PPP Validation
In recent years, the development of new constellations including Galileo, BeiDou Navigation Satellite System (BDS) and Quasi-Zenith Satellite System (QZSS) have undergone dramatic changes. Since January 2018, about 30 satellites of the new constellations have been launched and most of the new satellites have been included in the precise orbit and clock products provided by the Multi Global Navigation Satellite System (Multi-GNSS) Experiment (MGEX). Meanwhile, critical issues including antenna parameters, yaw-attitude models and solar radiation pressure models have been continuously refined for these new constellations and updated into precise MGEX orbit determination and precise clock estimation solutions. In this context, MGEX products since 2018 are herein assessed by orbit and clock comparisons among individual analysis centers (ACs), satellite laser ranging (SLR) validation and precise point positioning (PPP) solutions. Orbit comparisons showed 3D agreements of 3–5 cm for Galileo, 8–9 cm for BDS-2 inclined geosynchronous orbit (IGSO), 12–18 cm for BDS-2 medium earth orbit (MEO) satellites, 24 cm for BDS-3 MEO and 11–16 cm for QZSS IGSO satellites. SLR validations demonstrated an orbit accuracy of about 3–4 cm for Galileo and BDS-2 MEO, 5–6 cm for BDS-2 IGSO, 4–6 cm for BDS-3 MEO and 5–10 cm for QZSS IGSO satellites. Clock products from different ACs generally had a consistency of 0.1–0.3 ns for Galileo, 0.2–0.5 ns for BDS IGSO/MEO and 0.2–0.4 ns for QZSS satellites. The positioning errors of kinematic PPP in Galileo-only mode were about 17–19 mm in the north, 13–16 mm in the east and 74–81 mm in the up direction, respectively. As for BDS-only PPP, positioning accuracies of about 14, 14 and 49 mm could be achieved in kinematic mode with products from Wuhan University applied
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