It illustrates the difficulty of establishing uniform national requirements in a country where employers have, over decades, devised myriad different arrangements for providing health insurance to employees.
However, this method is limited by the difficulty of depositing uniform and precise coatings over a large aperture.
However, there are major obstacles to overcome in using CNTs as support additives, mainly the difficulty of the uniform dispersion of CNTs, wettability of the CNTs surface, and the load transfer from the matrix to the CNTs [8].
The rougher surface could cause the difficulty of the uniform formation of the Ag electrodes during the thermal evaporation, increasing the contact resistance between the layer and Ag electrode [27].
One limitation was the difficulty of establishing uniform standards of care among 23 different institutions spread across eight countries.
A persistent matter of concern in genomic data is the occurrence of errors, due to the difficulty of ensuring uniform quality control in such massive datasets.
Discordance between pathologists in Gleason grading can be as high as 30%, adding significantly to the difficulty of ensuring uniform and accurate prognostication (McKenney et al, 2011; Goodman et al, 2012).
Some of the barriers to the advancement of As research included an apparent lack of interest in the United States on As research; lack of relevant animal models; difficulty with adoption of uniform methodologies; lack of accepted biomarkers; and the need for a central storage repository for stored specimens.
The difficulty of achieving nearly uniform exit-temperature distributions in a short aircraft combustion chamber can be alleviated in stationary applications by longer chambers with partial internal reversed flow.
Disadvantages of these methods include the use of surfactants, the difficulty of achieving a uniform size distribution, low yields, and possible contamination from grinding media (14– 14).
