The phrase "a weak time" is correct and usable in written English.
It can be used to describe a period characterized by a lack of strength, effectiveness, or productivity, often in a metaphorical sense.
Example: "During the negotiations, we experienced a weak time when our arguments failed to convince the other party."
Alternatives: "a low point" or "a difficult period".
The holidays are typically a weak time for new plays but a very good one for star vehicles.
The machinists negotiated with the company when they were at a weak time," he said, and Boeing complied with their wishes.
For some more results concerning the wave equation with a weak time delay term under an appropriate assumption between (mu_{1}) and (mu_{2}), one can refer to Benaissa et al. [9], Datko et al. [10], Liu [11], Nicaise and Pignotti [12 14], Nicaise et al. [15], Nicaise and Valein [16], Xu et al. [17], and the references therein.
For simplicity, we consider a linear encoding of a weak time-dependent signal.
Although the MTT and WST-1 profiles are generally identical for time periods 24 to 72 h (with possibly the exception of the WST-1 results which show a weak time-dependent and concentration-dependent response), the major difference is the drastic loss in viability for concentrations of 100 μg/ml observed in the MTT assay.
However, with Saturday's 54km individual time trial likely to play a huge part in deciding the podium places, Frenchman Pinot, who is a weaker time trial rider than Valverde, attacked on the ascent of Hautacam and was followed by compatriot Peraud.
The secondary bursts (hatched grey zone) presented a weaker time-organized motor pattern and they still occurred during the same period as the main activity on the controlateral side.
Property 4) is a characterisation of weak time consistency in terms of acceptance sets, and property 5) gives a characterisation in terms of the supermartingale property of the penalty function.
If selection pressures or polymorphism dynamics have a greater impact on estimates of substitution rates than does a weak generation time effect, any acceleration in the substitution rate of annuals will be difficult to detect with ITS.
We also believe that our sampling methods controlled for rate heterogeneity caused by variables other than annual/perennial habit and helped to better detect a weak generation time effect.
Inverness were pinned back for long spells in an untidy first half but sprung a promising counter-attack on 22 minutes, only to see Aaron Doran send a weak first-time shot straight at Allan McGregor from 18 yards.
