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Sn-Pb alloys have widely been used in industry for many years. However, in the European Union, the use of Pb in electronics was prohibited from 1 January 2008 because Sn-Pb alloys cause serious pollution to environment. Therefore, the interfacial reactions between lead-free solders (Sn-Ag, Sn-Ag-Cu and Sn-Cu) and substrates as well as their mechanical properties have attracted much attention from...
This study evaluates the immunity of a low-noise amplifier (LNA) using a transient voltage suppressor (TVS) diode under direct current injection high-power microwave (HPM) pulses. The ac behavior of the TVS diode is examined. Both experiments and analysis demonstrate that the injected HPM power to failure of the LNA is increased by a factor of about 6 through the introduction of a TVS diode, the power...
This paper studies the controllability of linearly diffusively coupled multi-agent systems when some agents, called leaders, are under the influence of external control inputs. We bound the system's controllable subspace using combinatorial characteristics of some partitions of the graph describing the neighbor relationships between the agents. In particular, when such graphs are distance regular,...
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