This lack of control and efficiency poses an inherent risk of uneconomic reservoirs, due to insufficient heat-sweep surfaces or hydraulic shortcuts.
The need to achieve both accuracy and efficiency poses a difficult tradeoff for an instrument developer, for two reasons.
Aerosol deposition onto their surfaces could decrease their thermal efficiency and pose a threat for containment integrity.
However, none of these techniques can be used in wheat due to the large genome size and very low transformation efficiency which pose a technical challenge to produce the number of transformants needed to saturate the wheat genome.
Despite all the increases in agricultural efficiency, it poses a major additional, but often overlooked, threat to future food security worldwide.
The coexistence in the same spectrum of macro and femtocells increases the spectral efficiency but poses several challenges, such as additional interference between macro and femtocells [1] which becomes a major concern when these networks do not cooperate [2].
However, problems such as mosaicism and low mutagenesis efficiency continue to pose challenges to clinical application of such approaches.
Autonomous rendezvous and docking (ARD) plays a very important role in planned space programs, the success of ARD rests with the estimation accuracy and efficiency of relative pose among various spacecraft in rendezvous and docking.
In particular, the problems related to specificity, efficiency, and safety pose major limitations.
Despite first promising results in BCC and medulloblastoma (Rudin et al, 2009; Skvara et al, 2011; Von Hoff et al, 2009), limited therapeutic efficiency and drug resistance pose major challenges for targeting HH/GLI signalling by SMO-inhibition (Buonamici et al, 2010; Rudin et al, 2009; Von Hoff et al, 2009; Yauch et al, 2009).
