be constant in time

USAGE SUMMARY

The phrase "be constant in time" is correct and usable in written English.
It can be used in contexts where you want to express the idea of something remaining unchanged or stable over a period. Example: "For the experiment to yield valid results, the temperature must be constant in time."

✓ Grammatically correct

Science

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

21 human-written examples

Such a situation contradicts a basic tenet of the steady state theory, which holds that all large-scale properties of the universe, including the population of any subclass of objects like radio galaxies, must be constant in time.

Encyclopedia Britannica

Associating an audio pattern to a FG entity permits to enlarge the set of features that need to be constant in time for provoking a total BG absorption.

EURASIP Journal on Advances in Signal Processing

These authors require the magnetic flux to be constant in time over areas on the CMB defined by null flux curves at different epochs.

Earth, Planets and Space

The main field F0 and the field due to rock magnetization, dF R, can be regarded to be constant in time during the relatively short survey periods.

Earth, Planets and Space

where the distortion tensor: textbf{G} = left[ begin{array}{rr} G_{xx} & G_{xy} G_{yx} & G_{yy} end{array}right] (35). is assumed to be constant in time (frequency independent) (e.g., Groom and Bahr 1992; Jones 2012).

Earth, Planets and Space

We then apply our own processing, as defined above, where we assume the offsets and angles to be constant in time, and a linear variation of the scaling with time.

Earth, Planets and Space

Human-verified similar examples from authoritative sources

Similar Expressions

39 human-written examples

Because the Sun exerts no torque on the Earth with respect to its own centre, the orbital angular momentum of the Earth is constant in time.

Encyclopedia Britannica

These DX and DY are constant in time, while (DZ=0.2) is constant in time and space.

Earth, Planets and Space

Recall that μ is constant in time along any solution.

Boundary Value Problems

However, published data show that CSK is constant in time.

Journal of Hydrology

The results for daily-periodic weather showed: (1) The optimal co-state is constant in time.

Biosystems Engineering

Expert writing Tips

Best practice

When using the phrase "be constant in time", ensure it aligns with the technical or scientific context you're writing in. It's often used to describe parameters or conditions that don't change during an experiment or a theoretical model.

Common error

Don't confuse "be constant in time" with being static or unchanging in all aspects. Something can "be constant in time" while still varying in space or other dimensions. The phrase specifically refers to its stability over time.

Linguistic Context

The phrase "be constant in time" functions as a predicate within a sentence, specifying a property of a subject—that it remains unchanged throughout a duration. Ludwig AI confirms the phrase is grammatically correct and usable.

Expression frequency: Uncommon

Frequent in

Science

88%

Encyclopedias

8%

Formal & Business

4%

Less common in

News & Media

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

In summary, "be constant in time" is a grammatically sound phrase primarily used in scientific and technical writing to denote that something remains unchanged over a period. Ludwig AI confirms its correctness. While not common in everyday language, it is crucial for defining conditions in models and experiments. Alternatives include "remain constant over time" and "stay consistent over time". Remember to use it judiciously in appropriate contexts, avoiding confusion with static or spatially uniform concepts. This phrase's function is to ensure accuracy within a scientific context.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

remain constant over time

Replaces "be" with "remain" and reorders "over time" for a more common phrasing.

stay consistent over time

Substitutes "constant" with "consistent" and "be" with "stay", providing a slightly different emphasis.

not vary with time

Expresses the concept using a negative phrasing, focusing on the absence of variation.

remain unchanged through time

Uses "unchanged" to emphasize the lack of alteration and "through time" for a more literary feel.

hold steady over time

Replaces "constant" with "steady", suggesting stability and resistance to change.

be stable over a period

Offers a broader term than "constant", referring to the characteristic of something of being stable.

exhibit temporal stability

Uses more formal language to convey the idea of stability across time.

maintain temporal invariance

Employs technical terminology to denote the property of not changing with respect to time.

be time-invariant

A concise, technical term indicating independence from time.

persevere through time

Highlights the enduring nature of something, implying it remains constant despite potential challenges.

FAQs

How can I use "be constant in time" in a sentence?

The phrase "be constant in time" is used to describe something that does not change over a period. For example, "The rate α at which a random infectious animal in a given cohort becomes a carrier was assumed to "be constant in time"."

What's a simpler way to say "be constant in time"?

You could use phrases like "remain constant over time", "stay consistent over time", or "not vary with time" depending on the context.

Is it appropriate to use "be constant in time" in everyday conversation?

While grammatically correct, "be constant in time" is more suited to technical or scientific contexts. In everyday conversation, it's better to use simpler alternatives like "stay the same" or "remain consistent".

In what fields is the phrase "be constant in time" commonly used?

This phrase is frequently used in scientific fields such as physics, engineering, biology, and cosmology, where models often assume certain parameters "be constant in time" to simplify calculations or simulations.