Physical model of dehydration process of coal sludge unflotation size suspensions on the high-frequency sifter with different sloped sites of the working surface

Запропонована фізична модель процесу зневоднення вугільних шламових суспензій на ви-сокочастотному грохоті з різнопохилими ділянками робочої поверхні, у якій процес зневоднення здійснюється у три етапи: перевод у висококонцентровану суспензію, у в’язкопластичний матеріал, в пружнопластине тіло.Предложена физическая модель процесса обезвоживания угольных шламовых суспензий на высокочастотном грохоте с разнонаклонными участками рабочей поверхности, в которой процесс обезвоживания осуществляется в три этапа: перевод в высококонцентрированную суспензию, в вязкопластичный материал, в упругопластичное тело.A physical model of the process of dehydration of coal slurry suspension on the high-frequency rumble with areas of the working surface of a different angle, in which the dewatering process is accomplished in three stages: translation in the suspension of high concentration, in viscoplastic material, elasticplastic body

Geometry-dependent scattering through quantum billiards: Experiment and theory

We present experimental studies of the geometry-specific quantum scattering in microwave billiards of a given shape. We perform full quantum mechanical scattering calculations and find an excellent agreement with the experimental results. We also carry out the semiclassical calculations where the conductance is given as a sum of all classical trajectories between the leads, each of them carrying the quantum-mechanical phase. We unambiguously demonstrate that the characteristic frequencies of the oscillations in the transmission and reflection amplitudes are related to the length distribution of the classical trajectories between the leads, whereas the frequencies of the probabilities can be understood in terms of the length difference distribution in the pairs of classical trajectories. We also discuss the effect of non-classical "ghost" trajectories that include classically forbidden reflection off the lead mouths.Comment: 4 pages, 4 figure

Features of coal sludge processing on CDF "Gukovskaya"

Наведено результати удосконалення технології зневоднення вугільних шламів нефлотаційної крупності на високочастотних грохотах типу ГВЧ шляхом застосування різнопохилих ділянок робочої поверхні, що дозволило зменшити вологість товарної вугільної продукції на 0,2%.Приведены результаты усовершенствования технологии обезвоживания угольных шламов нефлотационной крупности на высокочастотных грохотах типа ГВЧ путем применения разнонаклонных участков рабочей поверхности, что позволило уменьшить влажность товарной угольной продукции на 0,2%.Results of improvement of technology of dewatering coal slimes not float size of the high-frequency screens type SHF by applying sections of the working surface of a different angle, that allowed to reduce the humidity of saleable coal production by 0,2%

Einstein-Infeld-Hoffman method and soliton dynamics in a parity noninvariant system

We consider slow motion of a pointlike topological defect (vortex) in the nonlinear Schrodinger equation minimally coupled to Chern-Simons gauge field and subject to external uniform magnetic field. It turns out that a formal expansion of fields in powers of defect velocity yields only the trivial static solution. To obtain a nontrivial solution one has to treat velocities and accelerations as being of the same order. We assume that acceleration is a linear form of velocity. The field equations linearized in velocity uniquely determine the linear relation. It turns out that the only nontrivial solution is the cyclotron motion of the vortex together with the whole condensate. This solution is a perturbative approximation to the center of mass motion known from the theory of magnetic translations.Comment: 6 pages in Latex; shortened version to appear in Phys.Rev.