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Thread: Use of "by"

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    #1

    Use of "by"

    Hi,
    I am writing a technical paper about turbine.

    Is use of "by" in the following sentence correct grammatically and conceptually? If it is not , kindly suggest ways to make it clearer.

    I use "VTB" very much in my paper. Is it necessary to add "the" before that?

    At most 63.37 % increase in torque coefficient and at most 72.8 % increase in efficiency are achieved by VTB.
    VTB=variable thickness blade i.e. blades whose thickness is tapered.



  2. teechar's Avatar
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    #2

    Re: Use of "by"

    Quote Originally Posted by ali_dd View Post
    At most, a 63.37% increase in torque coefficient and at most a 72.8% increase in efficiency are achieved by the VTB.


    .

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    #3

    Re: Use of "by"

    It's usually better to write in the active voice: The or A VTB increases the torque coefficient up to 63.37% and the efficiency up to 72.8%.

    Abbreviations function like other nouns with respect to articles.
    I am not a teacher.

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    #4

    Re: Use of "by"

    Quote Originally Posted by GoesStation View Post
    The or A VTB increases the torque coefficient up to 63.37% and the efficiency up to 72.8%.
    I would still use "by" in that sentence to avoid potential misinterpretation.

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    #5

    Re: Use of "by"

    Quote Originally Posted by teechar View Post
    I would still use "by" in that sentence to avoid potential misinterpretation.
    I vacillated over that. I think it'd be better to write ​by as much as.
    I am not a teacher.

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