The one-fluid model of equation of state and thermodynamic description of boundary states are used to study global equilibrium surface of two-component Lennard-Jones fluids. The global phase diagram for equal size molecules with seventeen separate regions is reported. The new type of phase behaviour is distinguished.The great variety of phase behaviour which was found for binary fluid mixtures is conditioned by intermolecular interaction. The successive theoretical approach to the analysis of the observed phase phenomena in terms of microscopic characteristics is usually restricted by the models of lattice gas in the local regions of the thermodynamic equilibrium sur. face. The global analysis of the equilibrium surface of coexisting fluid phases was reported only for the binary van der Waals mixtures [1,2]. The topological structure, created by the one-fluid van der Waals model, is of such a kind that it reflects many qualities of phase behaviour which were discovered by means of the binary systems that were already studied experimentally. There are, however, some reasons to require this model to be defined more exactly. In the first place, there is no direct correlation between the equation of state parameters and the characteristics of the intermolecular potentials; secondly, essential quantitative discrepancy in predicting the properties for the given binary mixtures is observed; thirdly, the true asymptotic behaviour of the equation of state at the high density limit is not realized. Among more f= ~
A new thermodynamic formalism has been developed for the analysis of the phase behaviour of two‐component fluids. Azeotropy and critical pressure maxima or minima in binary fluids have been interpreted as bifurcations of two‐phase equilibria and critical points, respectively. The analogous approach has been applied to some boundary states: hypercritical and isolated critical points, critical pressure step‐points. The thermodynamic conditions of these states have been derived for the first time by a uniform way.
Представлені результати експериментального дослідження впливу мікрохвильового електромагнітного поля на рослинну тканину. Вивчено ефекти мікрохвильового нагрівання насіння, зерна і зволоженої соломи при реалізації відповідних технологій біостимуляіїи, сушки і стерилізації. Показано вплив будови рослинної тканини і вмісту вологи на структурні зміни при мікрохвильовому нагріванні. Запропоновано метод оцінки величини енергії мікрохвильового поля, перетвореної у внутрішню енергію тіла Ключові слова: мікрохвильова енергія, нагрівання, рослинна тканина, біостимуляція, сушка, коефіцієнт корисної дії Представлены результаты экспериментального исследования влияния микроволнового электромагнитного поля на растительную ткань. Изучены эффекты микроволнового нагрева семян, зерна и увлажненной соломы при реализации соответствующих технологий биостимуляции, сушки и стерилизации. Показано влияние строения растительной ткани и влагосодержания на структурные изменения при микроволновом нагреве. Предложен метод оценки величины энергии микроволнового поля, преобразованной во внутреннюю энергию тела Ключевые слова: микроволновая энергия, нагрев, растительная ткань, биостимуляция, сушка, коэффициент полезного действия
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