The phrase "altering the sample" is correct and usable in written English.
You can use it when discussing modifications or changes made to a sample in various contexts, such as scientific research or data analysis.
Example: "The researchers focused on altering the sample to observe how different variables affected the results."
Alternatives: "modifying the sample" or "changing the sample."
In this regard, we can use HSI system to measure the spectral signature of chemical components, like bacterial pigments, inside the cells without altering the sample and its measurements even in a heterogeneous medium where spectrophotometric signal is not resolutive.
A possible solution, see [16], to restore sample diversity without altering the sample statistics is to move the current particles to new locations using a Markov chain transition kernel, that is, invariant to the conditional mixture pdf.
Supplementary Figures S2 and S3 show that in our data, altering the sample size made no visible difference to the estimated significance thresholds.
The power and significance level of the logrank test in the non-PH and PH scenarios are also studied without altering the sample size.
Small plain pieces or fragments of artwork can be easily transported to a laboratory and studied directly by non-invasive XRD, micro-Raman, micro-FTIR, and SEM/EDX without altering the samples [27 31], that are then returned to their original location.
However, when the length of the time series is determined by altering the sampling rate, SampEn may produce artifacts in the final entropy measure.
A sensitivity analysis (data not shown) shows that a larger sampling radius implies an increased zero-distance connection probability and a decreased lateral spread and that the effect is small: The estimates of both parameters change by <8% when altering the sampling radius from 50 to 150 μm.
Ms. Ishikawa insisted she never took drugs and had not altered the sample.
When pulling the samples I usually fallow a W or M pattern on the ATV and it is important to avoid wet spots and we also try not to sample in the headlands because they can both alter the sample.
Yet this approach suffers from significant sources of disorder: electrochemical reactions can damage or alter the sample, and the ions of the electrolyte and various dissolved contaminants sit Angstroms from the electron system.
However, lower processing success rates for the more complex rotary-beam signals do reduce the yield of fundamental frequencies and alter the sample variances for the retrieved parameters and the detection rates for harmonics.
