First, where a feature of the supply can objectively be valued at around 50% of the package, then that is very strong evidence that it has a separate personality and should be taxed at its own rate. Second, Customs has not welcomed the implication that a mixed supply had to exist where...
When the target pressure was reached, the sample was heated with a rate of 25 °C min–1 to peak temperature and then was maintained for 1 hour and finally quenched by turning off the electric power supply. Recovered samples were about 0.6–1.4 mm in diameter and 0.5–1 ...
We critically analyse surface and matrix designs composed of layered, embedded, and hybrid structures along the radial and longitudinal directions; materials and manufacturing techniques, such as tissue engineering and the use of textiles or their combinations; and the corresponding mechanical behaviours ...
If the heat dissipation of heat sink is low, the temperature will rise due to continuous heat supply, and the device will be damaged13,14,15. Fans are used to improve the heat dissipation of heat sinks. However, it is difficult to attach fans to micro devices owing to the large volume...
In this review, we first overview the common synthesis mechanisms of composite hydrogels, including physical cross-linking polymerization, chemical cross-linking polymerization and chemical-physical mixed cross-linking polymerization. Then we put forward the concept of hydrogel engineering and further introduc...
Collagen and dragline silk proteins were mixed at various ratios, electro-spun (E-spun), and lightly cross-linked to form composite fibers. In addition to biocompatibility studies, the unidirectional aligned collagen–dragline silk composite fibers were applied as a matrix to examining the stem cell...
Studies have shown that the QoS supply level of a service entity is related to the load of the service node where the service entity is located. For example, in [26], through a large number of experimental tests on database services, it is found that the average service response time of...
Both the production of water and of nitrogen is highly exothermic reactions which supply the energy necessary to maintain the reaction process. This mechanism involves the recombination of sublimates. This is a slow reaction in comparison to dissociation reaction.(5)NH3+HClO4→NH4++ClO4- ClO∗ ...
In this work, silicon/carbon composites for anode electrodes of Li-ion batteries are prepared from Elkem’s Silgrain® line. Gentle ball milling is used to reduce particle size of Silgrain, and the resulting Si powder consists of micrometic Si with som
5c). The EDX results also show the increase in silicon and oxygen signals, which are likely due to more PDMS being visible after some of the copper was abraded away. On the other hand, the constant supply of PDMS monomers to the surface to coat freshly exposed copper is supposedly ...