The phrase "a vector by which" is correct and usable in written English.
It can be used when describing a means or method through which something is achieved or expressed, often in mathematical or scientific contexts.
Example: "The force can be represented as a vector by which the object is accelerated in a specific direction."
Alternatives: "a means through which" or "a method by which".
Tolstoy, when he wrote the novel, was thinking about love in a different way: as a kind of fate, or curse, or judgment, and as a vector by which the universe distributes happiness and unhappiness, unfairly and apparently at random.
Ernst & Young, hired to evaluate whether the Cell is truly independent from Huawei headquarters, concluded that the ability of the company to set the bonus of the Cell's managing director, David Pollington, hired from Microsoft last year, "provides a vector by which performance... could be influenced".
Worryingly, the recently emerged H7N9 subtype also poses a risk of being the vector by which a human influenza epidemic occurs.
"But this is exactly what can happen if you fall victim to an email phishing campaign or other social engineering attack and become the vector by which your company exposes sensitive information.
It is, after all, likely that this is the vector by which millions of users' data was exfiltrated by agents both malicious and benign.
Still, the exact time, place, and vector by which the Libellus arrived in England and fell into Bede's hands is still far from certain, and scholars continue to explore these questions.
To reduce the adaptive immune response, a major improvement was made to Ad vectors by creating the HD-Ad vector in which all viral genes are deleted [ 11].
This high production of antibodies specific for mPrP may be related to the maturation state of DCs induced by LPS and Ad vector transduction, which up-regulate MHC class II and B7.2 costimulatory molecules as shown in this study and also mPrP as reported earlier [40].
A protein structure can be represented as a vector by 3D-Zernike Descriptor (3DZD) which compactly represents the surface shape of the protein tertiary structure.
As a result, livestock and wildlife could be potential vectors by which native invasive species spread.
More importantly, like many other Pinus species, mammal and bird species actively feed upon, cache, and disperse P. monticola seeds [55] and may represent vectors by which this species engaged in a northern range expansion (especially if said vector species also underwent northern range expansions).
