168 research outputs found
Methodological Aspects of Formation of Chart of Accounts
The study identified three types of charts of accounts: the chart of accounts oriented to financial accounting, which is based on the matrix method of building, classification of accounts is based on the principles of the balance sheet and the traditional definition of financial results; the chart of accounts, which assumes detailing the cost accounting and allocating additional classes of accounts to determine the financial results of the production; the chart of accounts of the integrated accounting, allowing the formation of multi-sector information and the data exchange between the accounted subsystemsyesBelgorod State Universit
On the modulation instability development in optical fiber systems
Extensive numerical simulations were performed to investigate all stages of
modulation instability development from the initial pulse of pico-second
duration in photonic crystal fiber: quasi-solitons and dispersive waves
formation, their interaction stage and the further propagation. Comparison
between 4 different NLS-like systems was made: the classical NLS equation, NLS
system plus higher dispersion terms, NLS plus higher dispersion and
self-steepening and also fully generalized NLS equation with Raman scattering
taken into account. For the latter case a mechanism of energy transfer from
smaller quasi-solitons to the bigger ones is proposed to explain the dramatical
increase of rogue waves appearance frequency in comparison to the systems when
the Raman scattering is not taken into account.Comment: 9 pages, 54 figure
Solitary wave interaction in a compact equation for deep-water gravity waves
In this study we compute numerical traveling wave solutions to a compact
version of the Zakharov equation for unidirectional deep-water waves recently
derived by Dyachenko & Zakharov (2011) Furthermore, by means of an accurate
Fourier-type spectral scheme we find that solitary waves appear to collide
elastically, suggesting the integrability of the Zakharov equation.Comment: 8 pages, 5 figures, 23 references. Other author's papers can be
downloaded at http://www.lama.univ-savoie.fr/~dutykh/ . arXiv admin note:
text overlap with arXiv:1204.288
Electronic structure and magnetic state of transuranium metals under pressure
Electronic structure of bcc Np, fcc Pu, Am, and Cm pure metals under pressure
has been investigated employing the LDA+U method with spin-orbit coupling
(LDA+U+SO). Magnetic state of the actinide ions was analyzed in both LS and jj
coupling schemes to reveal the applicability of corresponding coupling bases.
It was demonstrated that whereas Pu and Am are well described within the jj
coupling scheme, Np and Cm can be described appropriately neither in {m-sigma},
nor in {jmj} basis, due to intermediate coupling scheme realizing in these
metals that requires some finer treatment. The LDA+U+SO results for the
considered transuranium metals reveal bands broadening and gradual 5f electron
delocalization under pressure.Comment: 5 pages, 5 figure
Nonlinear interfacial waves in a constant-vorticity planar flow over variable depth
Exact Lagrangian in compact form is derived for planar internal waves in a
two-fluid system with a relatively small density jump (the Boussinesq limit
taking place in real oceanic conditions), in the presence of a background shear
current of constant vorticity, and over arbitrary bottom profile. Long-wave
asymptotic approximations of higher orders are derived from the exact
Hamiltonian functional in a remarkably simple way, for two different
parametrizations of the interface shape.Comment: revtex, 4.5 pages, minor corrections, summary added, accepted to JETP
Letter
Freely decaying weak turbulence for sea surface gravity waves
We study numerically the generation of power laws in the framework of weak
turbulence theory for surface gravity waves in deep water. Starting from a
random wave field, we let the system evolve numerically according to the
nonlinear Euler equations for gravity waves in infinitely deep water. In
agreement with the theory of Zakharov and Filonenko, we find the formation of a
power spectrum characterized by a power law of the form of .Comment: 4 pages, 3 figure
Software Tools for Searching, Comparing and Suggesting Objects of the Computer-Aided Design System for Spacecraft Onboard Software
Π‘Π»ΠΎΠΆΠ½ΠΎΡΡΡ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΠΏΡΠΎΠ΅ΠΊΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π±ΠΎΡΡΠΎΠ²ΠΎΠ³ΠΎ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΠ½ΠΎΠ³ΠΎ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠ΅Π½ΠΈΡ ΠΊΠΎΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π°ΠΏΠΏΠ°ΡΠ°ΡΠ° ΠΎΠ±ΡΡΠ»ΠΎΠ²Π»Π΅Π½Π° Π½Π°Π»ΠΈΡΠΈΠ΅ΠΌ Π² Π΅Π³ΠΎ ΡΠΎΡΡΠ°Π²Π΅ Π΄ΠΎ 500 000 ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΠ½ΡΡ
ΠΈ ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠΎΠ½Π½ΡΡ
ΠΎΠ±ΡΠ΅ΠΊΡΠΎΠ² Π±ΠΎΠ»Π΅Π΅ ΡΠ΅ΠΌ 40 ΡΠ°Π·Π»ΠΈΡΠ½ΡΡ
ΡΠΈΠΏΠΎΠ². ΠΠΎΡΡΠΎΠΌΡ ΡΠ°Π±ΠΎΡΠ° Ρ ΡΠ°ΠΊΠΈΠΌΠΈ Π±ΠΎΠ»ΡΡΠΈΠΌΠΈ ΠΎΠ±ΡΠ΅ΠΌΠ°ΠΌΠΈ Π΄Π°Π½Π½ΡΡ
ΡΡΠ΅Π±ΡΠ΅Ρ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠΊΠΈ ΡΠΏΠ΅ΡΠΈΠ°Π»ΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΠ½ΠΎΠ³ΠΎ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠ΅Π½ΠΈΡ Π΄Π»Ρ ΠΈΠ½ΠΆΠ΅Π½Π΅ΡΠΎΠ²-ΠΏΡΠΎΠ΅ΠΊΡΠΈΡΠΎΠ²ΡΠΈΠΊΠΎΠ². Π¦Π΅Π»ΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΡΠ²Π»ΡΠ΅ΡΡΡ ΠΏΠΎΡΡΡΠΎΠ΅Π½ΠΈΠ΅ Π°Π»Π³ΠΎΡΠΈΡΠΌΠΎΠ², ΡΠ°Π·ΡΠ°Π±ΠΎΡΠΊΠ° ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ², ΡΠΎΠ·Π΄Π°Π½ΠΈΠ΅ ΠΌΠ°ΡΠ΅ΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΌΠΎΠ΄Π΅Π»Π΅ΠΉ ΠΏΠΎΠΈΡΠΊΠ°, ΡΡΠ°Π²Π½Π΅Π½ΠΈΡ ΠΈ ΠΊΠΎΠΏΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π±ΠΎΠ»ΡΡΠΈΡ
ΡΠ°Π·Π½ΠΎΡΠΎΠ΄Π½ΡΡ
ΡΠ²ΡΠ·Π°Π½Π½ΡΡ
Π΄Π°Π½Π½ΡΡ
, Π° ΡΠ°ΠΊΠΆΠ΅ ΡΠ΅Π°Π»ΠΈΠ·Π°ΡΠΈΡ ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΡ
Π½Π°ΡΡΠ½ΠΎ-ΠΏΡΠ°ΠΊΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠΎΠ² Π² ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΠ½ΠΎΠΌ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ΅ ΠΈΠ½ΠΆΠ΅Π½Π΅ΡΠ°-ΠΏΡΠΎΠ΅ΠΊΡΠΈΡΠΎΠ²ΡΠΈΠΊΠ° Π±ΠΎΡΡΠΎΠ²ΠΎΠ³ΠΎ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΠ½ΠΎΠ³ΠΎ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠ΅Π½ΠΈΡ ΠΊΠΎΡΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
Π°ΠΏΠΏΠ°ΡΠ°ΡΠΎΠ². Π ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ΅ Π²ΡΠΏΠΎΠ΅Π½Π½ΡΡ
ΡΠ°Π±ΠΎΡ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½Ρ ΠΌΠ°ΡΠ΅ΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΌΠΎΠ΄Π΅Π»ΠΈ ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΉ ΡΡΠ°Π²Π½Π΅Π½ΠΈΡ Π² ΡΠ΅ΡΠΌΠΈΠ½Π°Ρ
ΠΌΠ½ΠΎΠΆΠ΅ΡΡΠ² ΠΈ Π»ΠΎΠ³ΠΈΠΊΠΈ ΠΏΡΠ΅Π΄ΠΈΠΊΠ°ΡΠΎΠ², ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Ρ ΠΊΡΠΈΡΠ΅ΡΠΈΠΈ ΠΎΡΠ΅Π½ΠΊΠΈ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠΎΠ² ΡΡΠ°Π²Π½Π΅Π½ΠΈΡ. ΠΠ° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΌΠ°ΡΠ΅ΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΌΠΎΠ΄Π΅Π»Π΅ΠΉ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½Ρ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΠ½ΡΠ΅ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΡ, ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°ΡΡΠΈΠ΅ ΠΏΠΎΠΈΡΠΊ, ΡΡΠ°Π²Π½Π΅Π½ΠΈΠ΅ ΠΈ ΠΊΠΎΠΏΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ ΡΠ°ΡΡΠ΅ΠΉ ΠΈΠ»ΠΈ ΠΏΠΎΠ»Π½ΠΎΡΡΡΡ Π°ΡΡ
ΠΈΡΠ΅ΠΊΡΡΡΠ½ΠΎΠ³ΠΎ ΠΏΡΠΎΠ΅ΠΊΡΠ° Π±ΠΎΡΡΠΎΠ²ΠΎΠ³ΠΎ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΠ½ΠΎΠ³ΠΎ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠ΅Π½ΠΈΡ ΠΊΠΎΡΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
Π°ΠΏΠΏΠ°ΡΠ°ΡΠΎΠ². Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π½ΡΠ΅ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΠ½ΡΠ΅ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΡ ΠΈΠ½ΡΠ΅Π³ΡΠΈΡΠΎΠ²Π°Π½Ρ Π² ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΠ½ΡΠΉ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡ Π°Π²ΡΠΎΠΌΠ°ΡΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ ΠΏΡΠΎΠ΅ΠΊΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΈ ΡΠΎΠΏΡΠΎΠ²ΠΎΠΆΠ΄Π΅Π½ΠΈΡ Π±ΠΎΡΡΠΎΠ²ΠΎΠ³ΠΎ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΠ½ΠΎΠ³ΠΎ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠ΅Π½ΠΈΡ ΠΊΠΎΡΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
Π°ΠΏΠΏΠ°ΡΠ°ΡΠΎΠ². Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠ°Π±ΠΎΡΡ Π²Π½Π΅Π΄ΡΠ΅Π½Ρ Π² ΠΠ Β«ΠΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠΎΠ½Π½ΡΠ΅ ΡΠΏΡΡΠ½ΠΈΠΊΠΎΠ²ΡΠ΅ ΡΠΈΡΡΠ΅ΠΌΡ ΠΈΠΌ. Π°ΠΊ. Π. Π€. Π Π΅ΡΠ΅ΡΠ½Π΅Π²Π°Β» ΠΈ ΠΏΡΠ°ΠΊΡΠΈΡΠ΅ΡΠΊΠΈ ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΡΡΡΡ Π² Π·Π°Π΄Π°ΡΠ°Ρ
ΠΏΡΠΎΠ΅ΠΊΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π½ΠΎΠ²ΡΡ
ΡΠΏΡΡΠ½ΠΈΠΊΠΎΠ² ΠΎΠ΄Π½ΠΎΡΠΈΠΏΠ½ΡΡ
ΡΠ΅ΡΠΈΠΉ. Π‘Π»ΠΎΠΆΠ½ΠΎΡΡΡ ΡΠ°Π±ΠΎΡΡ Ρ ΡΠ°Π·Π½ΠΎΡΠΎΠ΄Π½ΡΠΌΠΈ Π±ΠΎΠ»ΡΡΠΈΠΌΠΈ Π΄Π°Π½Π½ΡΠΌΠΈ Π½Π΅ ΠΏΠΎΠ·Π²ΠΎΠ»ΠΈΠ»Π° Π² ΠΏΠΎΠ»Π½ΠΎΠΉ ΠΌΠ΅ΡΠ΅ ΡΠ΅Π°Π»ΠΈΠ·ΠΎΠ²Π°ΡΡ ΠΎΠΏΠ΅ΡΠ°ΡΠΈΡ ΠΊΠΎΠΏΠΈΡΠΎΠ²Π°Π½ΠΈΡ. Π ΡΠ°Π±ΠΎΡΠ΅ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½ΠΎ Π²Π²Π΅ΡΡΠΈ ΠΏΠΎΠ½ΡΡΠΈΠ΅ Π΄Π²ΡΡ
ΡΠ°Π·Π½ΠΎΠΉ ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΈ ΠΊΠΎΠΏΠΈΡΠΎΠ²Π°Π½ΠΈΡ, ΠΊΠΎΠ³Π΄Π° ΠΏΠ΅ΡΠ²Π°Ρ ΡΠ°Π·Π° Π²ΡΠΏΠΎΠ»Π½ΡΠ΅Ρ ΠΊΠΎΠΏΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ ΡΡΡΡΠΊΡΡΡΡ Π±ΠΎΡΡΠΎΠ²ΠΎΠ³ΠΎ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΠ½ΠΎΠ³ΠΎ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠ΅Π½ΠΈΡ, Π° Π²ΡΠΎΡΠ°Ρ ΡΠ°Π·Π° β ΡΠ²ΡΠ·Ρ ΡΡΡΡΠΊΡΡΡΡ Ρ ΡΠ΅ΡΡΡΡΠ°ΠΌΠΈ ΠΊΠΎΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π°ΠΏΠΏΠ°ΡΠ°ΡΠ°The complexity of the process of designing the onboard software of a spacecraft is due to the presence of up to 500,000 software and information objects of more than 40 different types in its composition. Therefore, working with such large amounts of data requires the development of specialized software for design engineers. The construction of algorithms, the development of methods, the creation of mathematical models for searching, comparing and copying large heterogeneous related data, as well as the implementation of the obtained scientific and practical results in the software package of the design engineer of the onboard software of spacecraft. Results: mathematical models of comparison operations are developed in terms of sets and logic of predicates, criteria for evaluating comparison results are determined. On the basis of mathematical models, software components have been developed that provide search, comparison and copying of parts or a complete architectural project of the spacecraft onboard software. The developed software components are integrated into the software package for computer-aided design and maintenance of the spacecraft onboard software. Practical relevance: the results of the work are implemented in JSC βInformation satellite systems named after academician M. F. Reshetnevβ and are practically used in the design of new satellites of the same type series. The complexity of working with heterogeneous big data did not allow to fully implement the copy operation. The paper proposes to introduce the concept of a two-phase copying operation, when the first phase copies the structure of the onboard software, and the second phase links the structure with the resources of the spacecraf
The anti-sigma factor RsrA responds to oxidative stress by reburying its hydrophobic core
Redox-regulated effector systems that counteract oxidative stress are essential for all forms of life. Here we uncover a new paradigm for sensing oxidative stress centred on the hydrophobic core of a sensor protein. RsrA is an archetypal zinc-binding anti-sigma factor that responds to disulfide stress in the cytoplasm of Actinobacteria. We show that RsrA utilizes its hydrophobic core to bind the sigma factor Ο R preventing its association with RNA polymerase, and that zinc plays a central role in maintaining this high-affinity complex. Oxidation of RsrA is limited by the rate of zinc release, which weakens the RsrA-Ο R complex by accelerating its dissociation. The subsequent trigger disulfide, formed between specific combinations of RsrA's three zinc-binding cysteines, precipitates structural collapse to a compact state where all Ο R-binding residues are sequestered back into its hydrophobic core, releasing Ο R to activate transcription of anti-oxidant genes
Transfer of energy to high frequencies in the cubic defocusing nonlinear Schrodinger equation
We consider the cubic defocusing nonlinear SchrΓΆdinger equation on the two dimensional torus. We exhibit smooth solutions for which the support of the conserved energy moves to higher Fourier modes. This behavior is quantified by the growth of higher Sobolev norms: given any Ξ΄[much less-than]1,K [much greater-than] 1, s > 1, we construct smooth initial data u 0 with ||u0||Hs , so that the corresponding time evolution u satisfies u(T)Hs[greater than]K at some time T. This growth occurs despite the Hamiltonianβs bound on ||u(t)||H1 and despite the conservation of the quantity ||u(t)||L2.
The proof contains two arguments which may be of interest beyond the particular result described above. The first is a construction of the solutionβs frequency support that simplifies the system of ODEβs describing each Fourier modeβs evolution. The second is a construction of solutions to these simpler systems of ODEβs which begin near one invariant manifold and ricochet from arbitrarily small neighborhoods of an arbitrarily large number of other invariant manifolds. The techniques used here are related to but are distinct from those traditionally used to prove Arnold Diffusion in perturbations of Hamiltonian systems
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