Using normal probability plots to determine parameters for higher-level factorial experiments with orthogonal and orthonormal bases. - In: The Canadian journal of chemical engineering, ISSN 1939-019X, Bd. 97 (2019), 1, S. 152-164
In chemical engineering applications such as optimizing plant operations and product quality, factorial experiments are often conducted to obtain empirical models for systems. While the mathematical underpinning for two-level factorial designs is well understood, a methodology for analyzing higher-level experiments is not readily available. Often an orthogonal or orthonormal basis is selected for a factorial design matrix. In factorial design, an orthonormal basis is defined as an orthogonal matrix where the Euclidean two-norms of the column vectors are equal. This investigation examines, for full factorial design, the selection of parameters using normal probability plots and the effect that the design basis has on parameter determination. When using normal probability plots to determine parameter significance, the traditional orthogonal basis for higher-level experiments may result in erroneous conclusions. A Monte-Carlo experiment was developed to simulate 3-level and mixed-level factorial experiments with different types of measurement error. The basis chosen is shown to affect the shape of probability plots, and measurement errors from a given normal distribution are shown to result in a constant standard deviation for all parameter estimates only when using an orthonormal basis.
https://doi.org/10.1002/cjce.23296
Cost-sensitive large margin distribution machine for fault detection of wind turbines. - In: Cluster computing, ISSN 1573-7543, Bd. 22 (2019), S. S7525-S7537
https://doi.org/10.1007/s10586-018-1854-3
Bleaching effects and fluorescence lifetime imaging ophthalmoscopy. - In: Biomedical optics express, ISSN 2156-7085, Bd. 10 (2019), 3, S. 1446-1461
https://doi.org/10.1364/BOE.10.001446
Evaluation of a separate-receive coil by magnetic particle imaging of a solid phantom. - In: Journal of magnetism and magnetic materials, ISSN 1873-4766, Bd. 471 (2019), S. 444-449
https://doi.org/10.1016/j.jmmm.2018.09.114
Effect of nanoparticles coated with different modifications of dextran on lysozyme amyloid aggregation. - In: Journal of magnetism and magnetic materials, ISSN 1873-4766, Bd. 473 (2019), S. 1-6
https://doi.org/10.1016/j.jmmm.2018.10.018
Temperature controlled camptothecin release from biodegradable magnetic PLGA microspheres. - In: Journal of magnetism and magnetic materials, ISSN 1873-4766, Bd. 469 (2019), S. 698-703
https://doi.org/10.1016/j.jmmm.2018.09.011
57Fe Mössbauer study of epitaxial TiN thin film grown on MgO (1 0 0) by magnetron sputtering. - In: Applied surface science, Bd. 464 (2019), S. 682-691
Im Titel ist "57" hochgestellt
https://doi.org/10.1016/j.apsusc.2018.09.107
A metal-organic framework-derived bifunctional catalyst for hybrid sodium-air batteries. - In: Applied catalysis, ISSN 1873-3883, Bd. 241 (2019), S. 407-414
https://doi.org/10.1016/j.apcatb.2018.09.063
Long-term stable measurement phantoms for magnetic particle imaging. - In: Journal of magnetism and magnetic materials, ISSN 1873-4766, Bd. 471 (2019), S. 1-7
https://doi.org/10.1016/j.jmmm.2018.09.012
Insights into the crystallinity of layer-structured transition metal dichalcogenides on potassium ion battery performance: a case study of molybdenum disulfide. - In: Small, ISSN 1613-6829, Bd. 15 (2019), 15, 1900497, insges. 9 S.
Layer-structured transition metal dichalcogenides (LS-TMDs) are being heavily studied in K-ion batteries (KIBs) owing to their structural uniqueness and interesting electrochemical mechanisms. Synthetic methods are designed primarily focusing on high capacities. The achieved performance is often the collective results of several contributing factors. It is important to decouple the factors and understand their functions individually. This work presents a study focusing on an individual factor, crystallinity, by taking MoS2 as a demonstrator. The performance of low and high-crystallized MoS2 is compared to show the function of crystallinity is dependent on the electrochemical mechanism. Lower crystallinity can alleviate diffusional limitation in 0.5-3.0 V, where intercalation reaction takes charge in storing K-ions. Higher crystallinity can ensure the structural stability of the MoS2 layers and promote surface charge storage in 0.01-3.0 V, where conversion reaction mainly contributes. The low-crystallized MoS2 exhibits an intercalation capacity (118 mAh g^-1), good cyclability (85% over 100 cycles), and great rate capability (41 mAh g^-1 at 2 A g^-1), and the high-crystallized MoS2 delivers a high capacity of 330 mAh g^-1 at 1 A g^-1 and retains 161 mAh g^-1 at 20 A g^-1, being one of the best among the reported LS-TMDs in KIBs.
https://doi.org/10.1002/smll.201900497