In Asia the main issue concerns the presence and absence of water.
The main issue concerns the boundary condition at the charge injecting contacts, including ohmic contacts (leading to space charge limited currents) as well as contacts with a finite threshold field for injection (e.g., by Corona onset in gas).
These days, grade repetition is the main issue concerning the guarantee of quality education provided to all students.
The main issue concerns how we can be confident that we have conceived things to the relevant level of depth required for the scenario to actually be a presentation or manifestation of a genuine possibility.
However, a main issue concerning MET-PET is that the tracer exhibits a very short half-life and is hardly available in routine clinics; however, alternative tracers have been proposed.
The main issue concerning the clinical use of NGS-based approaches is the huge amount of data produced and its interpretation: the greater the genomic region analyzed, the greater the number of variants of uncertain significance identified.
The main issue concerning the extrudability of a bone cement is determined by factors like the liquid to powder ratio (LPR), the plastic limit (which is the smallest liquid to powder ratio needed to form plastic paste), the grain size distribution, the zeta-potential, and steric stabilisation [ 19– 219.
This paper studies the main issues concerned in designing a centrifugal atomiser and provides guidance on the selection of an electric motor, radius of atomiser, slope angle of atomiser wall and flow rate of cooling water.
The main issues concerned are how to make a more rational batch-scheduling plan and how to meet the consumption demand of each region along the pipeline in a safe and economic way.
The paper closes by highlighting the principal achievements and the main issues concerning the future development of KBS for solving real life problems.
