The phrase "a certain relative" is correct and usable in written English.
It can be used when referring to a specific family member without naming them directly, often in a context where the identity is either known or implied.
Example: "During the family reunion, a certain relative shared some interesting stories from our family's past."
Alternatives: "a particular family member" or "a specific relative".
"I haven't felt such excitement in the shed since a certain relative of mine was there," said Jamie Bernstein, a daughter of Leonard Bernstein.
It is further shown that a certain relative delay margin can represent the robustness level well and the contour can be sketched with a simpler procedure than the one using maximum sensitivity index.
Furthermore, the efficiency of the isolation measures designed using fixed base conditions is decreased by considering SSI over a certain relative rigidity range that is quantified using the structure to soil-foundation natural frequency ratio.
Rather grim and earnest and puritanical not to read with the heart and the mind, I say … When we read sympathetically and attentively – giving over our presumption that we are here somehow to condescend or should tell the author that we know better – these books (quite powerfully) remind us that our contemporary reading experiences carry with them a certain relative poverty".
Figure 11 Conditions leading to a certain relative channel load.
We determine under which conditions a certain relative channel load can be achieved.
Table 2 presents some numerical solutions for the periods of MT for which a 〈n,f〉 system, under parallel attack, should be designed for when intending a certain relative-resilience factor (c).
Certainty has thereby not to be taken in its objective sense in which a proposition s is certain relative to a set σ of propositions iff the logical probability of s relative to σ is 1, i.e., iff s is a logical consequence of σ (WL II, 173).
Our main results are a symmetry relation for the dwell time distributions in reversible motors, and a relation between certain relative step frequencies and the free energy per cycle.
VR makes focusing more difficult because the display is fixed at a certain point relative to our eyes.
The Socialist Bruno le Roux told parliament: "I think French people are ready for a certain, totally relative restriction of liberties, that is controlled and limited to a specific timeframe".
