Sentence examples for sampling difficult from inspiring English sources

The sensitive subject of return and the security constraints made random sampling difficult.

This may be because of their little commercial value and large size, which makes sampling difficult.

The Drake Passage has over 20 seamounts and ridges (peaks of shallower than 2000 m depth) between the southern extension of the South American shelf and the Western Antarctic Peninsula shelf, but the passage is also notorious for large waves, fierce storms and strong currents, making benthic sampling difficult and therefore infrequent.

The extreme bimodality of this distribution makes its sampling difficult using the standard SSA.

Cluster sample study designs are a cost-effective way of sampling difficult to reach populations.

Every October, the containers were covered with nets (meshsize 7 mm) to prevent leaves from falling into the water, which would have made sampling difficult.

[Note: we test Biden because we are examining small sub-samples and the sampling error on margins (for example, for favorable minus unfavorable) of less than 350 people is about 10pt or greater, which makes comparing different poll sub-samples difficult.

For samples difficult to visually crossdate, undated inner sections were run against the previously developed chronology using COFECHA [46].

The reason is that the solved membrane protein structures are much fewer than the soluble proteins, making the training samples difficult to collect.

In neutron resonance spectroscopy, preparation of thin cylindrical samples of large diameter containing 10−4 10−5 atoms per barn of raw materials in powder form make pressing a uniform thickness sample difficult.

However, the paucibacillary nature of disease in the eye makes the confirmation of diagnosis by standard microbiological methods such as demonstration of Mycobacterium tuberculosis organisms on smear microscopy or culture from ocular samples difficult.