Strategies for estimating K have been proposed [17] [19], but most require many time-consuming STRUCTURE runs [see 12], [13], [20 for alternative approaches].
However, the main disadvantages of PECVD deposition are extremely time consuming in superlattice structure and in toxic, explosive, and expensive gases involved, such as silane (SiH4), monomethylsilane (MMS), methane (CH4), and hydrogen (H2) etc.
This approach has numerous advantages over the Bayesian method and it does not require time consuming analyses of population structure, as calculations are performed relatively fast [ 64].
As the ab initio computations are highly time consuming, the DOS for structures containing more than 500 atoms, has been calculated without relaxation of the atomic positions.
One of the major problems with them is that it is extremely time consuming to construct 3D structures by means of these tools (Scheres et al., 2007).
Usually, optical designers start their designs from the commonly used structures from a patent database; however, it is time consuming to modify the patented structures to meet the specification.
However, their complex mathematical structure requires time consuming algorithms to obtain accurate numerical solutions for realistic flow geometries.
The exact reanalysis of a structure is time consuming and when repeated reanalyses are needed, it is often preferable to use an approximate Ritz technique.
In the realization step of any microstrip filter according to the required electrical characteristics, coupling factors and external quality factor (Qext) are related to the physical parameters of the structure using time consuming full wave simulations.
Because of the difference in publishing the data from one paper to another, retrieving and processing data tables from various studies and merging them into a single database structure was time consuming.
Present methods to calculate damage to structures are time consuming and do not accurately provide the rate of damage.
