closed line

USAGE SUMMARY

"closed line" is not a grammatically correct phrase or sentence in written English.
It does not make sense in this context and cannot be used as written.

⚠ May contain grammatical issues

Science

News & Media

Human-verified examples from authoritative sources

Exact Expressions

44 human-written examples

Assume that is a set-valued mapping satisfying the following conditions: for each, ; for each, implies that ; for each, is -convex on ; for each, is weakly lower semicontinuous on ; for each, the set is closed, here stands for the closed line segment joining and.

Journal of Inequalities and Applications

From the beginning of GC preparation up to the AMS measurement the sample is in a closed line.

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms

The center of regenerated bone in the bone defect in each group was encircled by a closed line and the measurement area was specified.

Nature

In addition to speaking on the phone call, the occupiers appeared to have a separate, closed line of communication to an FBI negotiator, and they frequently relayed snippets of their negotiations.

The Guardian

A significant decrease in the mean value of salinity tolerance, expressed by survival time in 35-ppt seawater, was observed in both the full-sib mated line and the closed line of n=10, indicating inbreeding depression for salinity tolerance.

Aquaculture

First peak (closed line) represents FL, second peak (dotted line) represents HL.

Journal of Experimental Orthopaedics

Human-verified similar examples from authoritative sources

Similar Expressions

16 human-written examples

The experimental results are used to demonstrate a buffer allocation decomposition result for closed production lines, and also provide evidence that optimal buffer allocations in closed lines are less sensitive to bottleneck severity than in open production lines.

International Journal of Production Economics

The interface is described by a set of closed lines which define a coarse Lagrangian quadrangular mesh in the fixed computational grid.

Journal of Computational Physics

Two algorithms are implemented: the first one for simply connected open surfaces bounded by closed lines, and for closed surface with plane symmetry; and the second for closed surfaces.

Journal of Computational Physics

In effect, closed lines are circular, and form a special case of linear routes.

European Transport Research Review

This is an increase in correctly decoded closed lines of 44.1%.

European Transport Research Review

Expert writing Tips

Best practice

When describing routes or services that are no longer operational, consider using more precise terms like "discontinued route" or "suspended service" instead of the potentially ambiguous phrase "closed line".

Common error

Avoid using "closed line" to describe communication channels that are simply private or secure. "Closed" implies a cessation of activity, not necessarily confidentiality.

Linguistic Context

The phrase "closed line" functions primarily as a descriptive term, indicating a state of being non-operational or inaccessible. Ludwig AI indicates that while frequently used, the phrase is not considered grammatically sound. It attempts to characterize diverse entities ranging from transportation routes to communication channels.

Expression frequency: Very common

Frequent in

Science

45%

News & Media

30%

Formal & Business

10%

Less common in

Wiki

8%

Encyclopedias

4%

Reference

3%

Ludwig's WRAP-UP

The phrase "closed line" is frequently used across various contexts, from transportation to communication, to indicate a state of being non-operational or inaccessible. However, Ludwig AI marks it as grammatically incorrect. While common, particularly in scientific and news-related content, more precise alternatives like "discontinued route", "suspended service", or "secure communication channel" may be preferable for clarity and grammatical accuracy. When writing, consider the specific context and intended meaning to choose the most appropriate and grammatically sound alternative.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

discontinued service

Focuses on the cessation of a service, such as a transportation route, rather than a physical line.

shut down line

Emphasizes the action of ceasing operations on a specific line, often in a business or industrial context.

inoperative line

Highlights the condition of a line being out of service or not functioning.

secure communication channel

Shifts the focus to the safety and privacy aspects of a communication line, implying it's not publicly accessible.

closed-off route

Specifies that a route, whether physical or virtual, is inaccessible or blocked.

private line

Focuses on exclusivity and restricted access to a communication or data line.

dedicated line

Highlights that a line is specifically allocated for a particular purpose, implying restricted access for other uses.

non-public communication

Broadens the context to any form of communication that isn't accessible to the general public.

restricted channel

Indicates limited or controlled access to a communication or distribution pathway.

termination of services

Refers to the complete ending of a service or utility, without specifying a physical or virtual 'line'.

FAQs

What does "closed line" mean in the context of transportation?

In transportation, "closed line" typically refers to a route or service that is no longer in operation. This could be a "discontinued railway" line or a bus route that has been terminated.

Is "closed line" grammatically correct?

While commonly used, "closed line" may not always be the most grammatically precise phrase. Alternatives like "discontinued line" or "inoperative line" might be preferable depending on the context.

What can I say instead of "closed line" when referring to communication?

When referring to communication, consider alternatives such as "secure line", "private channel", or "restricted communication" to emphasize confidentiality or limited access.

How does a "closed line" differ from an "open line"?

A "closed line" implies that a previously active route, service, or communication channel is no longer available. An "open line", on the other hand, suggests availability and accessibility, often in the context of communication or production.