Sentence examples for measurements is difficult from inspiring English sources

When taking measurements is difficult or expensive, as in airplanes, launchers etc., the best number and locations can be determined, on the one hand, from harmonic numerical modelling to obtain the interior vibro-acoustic responses inside the vehicles, and on the other hand by the help of a calculated map providing the spatial distribution of the primary excitation.

In traditional error-state based inertial navigation system (e.g., Rogers 2003; Bekir 2007), the variance component estimation for the IMU measurements is difficult because the error measurement vector blends the errors from an inertial sensor and other aiding sensors.

Evidence supporting earlier detection of progression with optic disc and RNFL measurements is difficult to obtain.

This is due to the fact that the relationship between US BSC and hematocrit is complex [ 14]; determining the hematocrit from BSC measurements is difficult.

Evaluation of the ANS response to intubation by catecholamine measurements is difficult because it is not sensitive enough and requires repeated blood sampling in a short time interval.

The diagnosis of "normal" as opposed to "abnormal" based on continuous measurements is difficult, but is aided by the reference interval calculated from subjects representative of the healthy population (Altman 1999).

Such measurements are difficult to make today.

These measurements are difficult to capture from Earth because low-frequency radiation is mostly blocked by its atmosphere.

Hemodynamic measurements are difficult to obtain in mice, and right heart failure has not been investigated in mice.

Furthermore, accurate dry matter intake measurements are difficult to obtain under grazing conditions.

Direct measurements are difficult and these fluctuations are generally inferred from optical diagnostics.