A conceptual method to realize an impedance-matched electrically small antenna is discussed, using a transmission line modulated only in time. The time-periodic space-uniform modulation of distributed shunt array varcapacitors excites mode with very frequency but still (microwave) wavelength: the matching then retains practical size. brings problem impedance $f_0$ much higher than signal, where...

We study the vector-valued spectrum $\mathcal {M}_{u,\infty }(B_{\ell _2},B_{\ell _2})$, which is set of non-zero algebra homomorphisms from {A}_u(B_{\ell _2})$ (the uniformly continuous holomorphic functions on $B_{\ell _2}$) to

Abstract Though the Lovibond colorimetric method is effective for determining oil colour, it a visual comparison which relies on manual reading. As result, this vulnerable to influence of subjective factors testers and low accuracy. In paper, original index colour grading based space changed uniform space, new proposed determine by spectrophotometry. The experimental results show that there str...