As with other aggregates, there is difficulty in experimentally determining its structure.
This matter has great importance for shortage of basalt aggregate quarries and management difficulties for these quarries.
The development of the digital thread has been challenged by the inherent difficulty of aggregating and applying context to data from heterogeneous systems across the product lifecycle.
Difficulty in aggregating resistance to multiple drugs to assess trends poses a further challenge to quantifying and communicating changes in resistance over time and across locations.
These mechanisms would seem to be aligned well with the mechanisms that have been postulated to make self-assessment untrustworthy (i.e., difficulty mentally aggregating past experiences).
The meta-analysis described a number of important flaws in the literature which caused difficulty in aggregating the individual study findings.
The difficulty in aggregating resistance to multiple drugs to assess trends poses a challenge to quantifying and communicating changes in drug resistance over time and across locations.
Volume, difficulty and the aggregate hash rate are also useful barometers.
Biostimulants were loosely defined for a long time and often regarded dubiously because of their aggregate nature and the inherent difficulty to determine which specific components were making beneficial contributions.
Even though they marginally satisfy the standard of aggregates, its poor quality causes difficulty in mix proportioning (Bairagi et al. 1990; Goltermann and Johansen 1997).
The use of these aggregates produced a greater compaction difficulty, but guaranteed excellent mechanical performances, above all in terms of indirect tensile strength.
