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Based on the experiments, it was found that heat transfer enhancement of the internally ribbed tube could postpone departure from nucleate boiling at the sub-critical pressure.
      
However, the heat transfer enhancement decreased near the critical pressure.
      
At supercritical pressure, the temperature difference between the wall and the fluid increased near the pseudo-critical temperature, but the increase of wall temperature was less than that of departure from nucleate boiling at sub-critical pressure.
      
When pressure is closer to the critical pressure, the temperature difference between the wall and the fluid increased greatly near the pseudo-critical temperature.
      
Heat transfer to supercritical water in the inclined upward internally ribbed tube was enhanced or deteriorated near the pseudo-critical temperature with the variety of ratio between the mass velocity and the heat flux.
      
Critical parameters such as the temperature and relative humidity of air and the temperature of water at the inlet and outlet were measured.
      
In the model, shear intensity of elements in an intact state are simulated by Duncan-Zhang model and that in a critical state by Mohr-Coulomb criterion.
      
Besides, the critical crack tip opening displacement of each specimen is calculated, too.
      
Copolymers of N,N-diethylacrylamide and N-acryloylphthalimide with a lower critical solution temperature (LCST) were synthesized by radical copolymerization.
      
The values of the lower critical mixing temperature of these derivatives and the inhibitory activities of immobilized ovomucoid were determined by the length and amount of polydiethylacrylamide macromolecules bound to the molecule of ovomucoid.
      
In recent years nitrile hydratases (NHases) have drawn increasing attention due to their critical roles in organic synthesis.
      
The results obtained are critical for developing systems of release of diverse drugs, thus, enabling the attainment of the requisite physiological effects on tissues and organs of humans.
      
Relatively short polymer chains with lower critical solution temperatures were immobilized on protein macromolecules to obtain biodegradable polymeric derivatives of proteins (including those for heat-inactivated targeting of polypeptide drugs).
      
That critical eigenvalues have only prime elementary divisors is demonstrated through the use of recently derived estimates for the elements of inverse matrices under the Hadamard and Ostrovskii regularity criteria.
      
On Conditions for Stability of the Nonlinear Dynamic Systems in the Limit-Critical Case
      
In this-as in any other-critical case, the nature of stability of the nonlinear system is defined by the nonlinear terms of its right-hand side.
      
At that, it minimizes both the critical (maximum) delay and the chip area required for routing.
      
Algorithms for computing critical levels and power of the likelihood ratio test by the Monte Carlo method are designed.
      
For the static model, direct and inverse problems of resource allocation were solved, and the set of critical resources was determined.
      
The data on elastic and dynamic light scattering indicate the formation of single-stranded polymers without any structural rigidity that acquire a ramified and compact structure upon reaching critical mass.
      
 

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