Youden [8] introduced a new class of designs called Linked Block (LB) designs, where a LB design is defined as that in which any two blocks of the design have the same number of treatments in common.

Since the efficiency factors compare the designs to a (hypothetical) orthogonal design, values of 100% are not possible in this case. The OPTEX procedure includes facilities for examining the ...

It can be easy to take the humble terminal block for granted. Like the steel girder on a bridge, terminal blocks provide necessary structure and stability within the electrical panel. But once they’re ...