The speed of sound (SOS, m·s-1) was calculated by: (1) S O S = l T O F, where ' l' is the width of the calcaneus and ' TOF' is the time of flight, defined as the time when the signal firstly reaches a fixed threshold which is experimentally determined prior to experiment as a value just above the peak of noise.
Hardness enhancement was observed, the value of the hardness increased firstly and reached a maximum value of 31.5 GPa, corresponding to Cu content of 1.75 at.%, and then it decreased when the substrate bias voltage changed from −100 to −900 V.
With the increase of bias voltage, the content of ZrC and the ratio of sp3/sp2 firstly increases, reaching a maximum value at 200 V, and then decreases.
We verify our model by comparing its predictions with two classes of published impedance control experiments: Firstly, stationary reaching experiments where accuracy or velocity constraints are modulated and secondly, tasks involving adaptation towards external FF.
Firstly, biofilm thickness reached a maximum value within 0 25 days.
(1) The laws of the metasilicate release process all increased firstly and then reached equilibrium state.
Firstly, agreement was reached on the European arrest warrant, a major, sensitive agreement which must be seen as an initial step, to be consolidated by a broader, further-reaching political and institutional project bringing further integration.
The tensile strength of SPCs was observed to increase firstly and to reach a maximum value at Ti = 160 °C, and then to decrease with further increasing the Ti.
With the voltage increasing the value of I(D /I(G) ratio firstly decreases, and reaches a minimum value at 20 kV, and then increases.
