87 research outputs found

    Application of rosa canina l. to replace sodium nitrite in sausages

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    Among meat products, sausages are in high demand among consumers, due to their readiness for consumption without additional processing, specific pleasant taste and aroma, and relatively long shelf life. However, a number of synthetic additives are used in the composition of sausages, which in the future can be replaced by natural plant ingredients with functional properties. The aim of this study was to evaluate the possibility of using rosehip extract (Rosa canina L.) as a natural ingredient to replace sodium nitrite in cooked sausages. 5 batches of boiled sausages were produced: 1) positive control with sodium nitrite, 2) negative control without sodium nitrite, 3) experimental batch with 3% concentration, 4) with 8% concentration, 5) with 15% extract concentration wild rose (Rosa canina L.). The study of extracts of Rosa canina L. on the content of solids, sugars, polyphenols and antioxidant activity showed their significant increase. Indicators of antioxidant activity of boiled sausages also showed a tendency to increase with an increase in the concentration of the extract in the composition. However, to recommend Rosa canina L. as an antioxidant component to replace sodium nitrite in the composition of sausages, additional studies on the development of microbiological indicators during storage and organoleptic analysis are required

    Investigation of correlation of generated nuclearactive particles in the protonantiproton annihilation at momenta 22.4 and 32 GeV / c

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    Separation of the individual events corresponding to antiproton-proton annihilation gives the possibility to carry out the analysis of multiparticle correlations for generated particles and to compare them with corresponding data for inelastic pp and non-annihilation p̃p interactions..

    Investigation of correlation of generated nuclearactive particles in the protonantiproton annihilation at momenta 22.4 and 32 GeV / c

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    Separation of the individual events corresponding to antiproton-proton annihilation gives the possibility to carry out the analysis of multiparticle correlations for generated particles and to compare them with corresponding data for inelastic pp and non-annihilation p̃p interactions..

    Initial State Fluctuations and Complete Destruction of the Projectile Nucleus in Interactions of Asymmetric Nuclei at High Energies

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    A study of characteristics of the events of complete destruction of the projectile nucleus in the interactions between asymmetric nuclei for different initial states of the collision, is performed. In the interactions of the sulfur nuclei with heavy emulsion nuclei at energy 200 AGeV, anomalous high number of events the complete destruction of the projectile nuclei, is observed. The high probability of such events depends on the energy of interaction (it is not detected in the interactions of the sulfur nuclei with emulsion nuclei at energy of 3.7 AGeV), on the degree of asymmetry of the interacting nuclei (it is not detected in interactions of the sulfur nuclei with light emulsion nuclei) and on initial state of interaction (it is not detected in peripheral collisions). These events are characterized by high multiplicity of secondary particles and narrow angular distribution at large angles (they form narrow peak in the region of small values of average pseudorapidity)

    The properties of the three-nucleon system with the dressed-bag model for nn interaction. I: New scalar three-body force

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    A multi-component formalism is developed to describe three-body systems with nonstatic pairwise interactions and non-nucleonic degrees of freedom. The dressed-bag model for NNNN interaction based on the formation of an intermediate six-quark bag dressed by a σ\sigma-field is applied to the 3N3N system, where it results in a new three-body force between the six-quark bag and a third nucleon. Concise variational calculations of 3N3N bound states are carried out in the dressed-bag model including the new three-body force. It is shown that this three-body force gives at least half the 3N3N total binding energy, while the weight of non-nucleonic components in the 3^3H and 3^3He wavefunctions can exceed 10%. The new force model provides a very good description of 3N3N bound states with a reasonable magnitude of the σNN\sigma NN coupling constant. The model can serve as a natural bridge between dynamical description of few-nucleon systems and the very successful Walecka approach to heavy nuclei and nuclear matter.Comment: 26 pages, Latex, 7 figure

    Capacity Utilization Factor (CUF) of the 70kW on-grid solar station in the dry climate of Termez

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    The aim of the present study was to assess the installed capacity utilization factor and the suitability of a 70kW photovoltaic plant placed on the roof of a dormitory located at Termez city (Termez state university). We can report the energy to production directly through mobile devices. CUF is one of the quantities that shows the performance quality of each power generating station. The results of our research cover two months autumn and winter. Through this, the theoretically estimated minimum values of CUF on the least sunny days have also been proven in real values. It is estimated that the annual result of this value will be around 15%-20%. Because in the winter months, the value of individual CUF on open days increases by 20%. An estimated 15.68 mln kg of CO2 was avoided due to the generation of 22.4MWh of energy. This is a small improvement in the environment and energy sector

    Moscow-type NN-potentials and three-nucleon bound states

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    A detailed description of Moscow-type (M-type) potential models for the NN interaction is given. The microscopic foundation of these models, which appear as a consequence of the composite quark structure of nucleons, is discussed. M-type models are shown to arise naturally in a coupled channel approach when compound or bag-like six-quark states, strongly coupled to the NN channel, are eliminated from the complete multiquark wave function. The role of the deep-lying bound states that appear in these models is elucidated. By introducing additional conditions of orthogonality to these compound six-quark states, a continuous series of almost on-shell equivalent nonlocal interaction models, characterized by a strong reduction or full absence of a local repulsive core (M-type models), is generated. The predictions of these interaction models for 3N systems are analyzed in detail. It is shown that M-type models give, under certain conditions, a stronger binding of the 3N system than the original phase-equivalent model with nodeless wave functions. An analysis of the 3N system with the new versions of the Moscow NN potential describing also the higher even partial waves is presented. Large deviations from conventional NN force models are found for the momentum distribution in the high momentum region. In particular, the Coulomb displacement energy for nuclei ^3He - ^3H displays a promising agreement with experiment when the ^3H binding energy is extrapolated to the experimental value.Comment: 23 pages Latex, 9 figures, to appear in Phys.Rev.

    Dibaryon model for nuclear force and the properties of the 3N3N system

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    The dibaryon model for NNNN interaction, which implies the formation of an intermediate six-quark bag dressed by a σ\sigma-field, is applied to the 3N3N system, where it results in a new three-body force of scalar nature between the six-quark bag and a third nucleon. A new multicomponent formalism is developed to describe three-body systems with nonstatic pairwise interactions and non-nucleonic degrees of freedom. Precise variational calculations of 3N3N bound states are carried out in the dressed-bag model including the new scalar three-body force. The unified coupling constants and form factors for 2N2N and 3N3N force operators are used in the present approach, in a sharp contrast to conventional meson-exchange models. It is shown that this three-body force gives at least half the 3N3N total binding energy, while the weight of non-nucleonic components in the 3^3H and 3^3He wavefunctions can exceed 10%. The new force model provides a very good description of 3N3N bound states with a reasonable magnitude of the σNN\sigma NN coupling constant. A new Coulomb 3N3N force between the third nucleon and dibaryon is found to be very important for a correct description of the Coulomb energy and r.m.s. charge radius in 3^3He. In view of the new results for Coulomb displacement energy obtained here for A=3 nuclei, an explanation for the long-term Nolen--Schiffer paradox in nuclear physics is suggested. The role of the charge-symmetry-breaking effects in the nuclear force is discussed.Comment: 64 pages, 7 figures, LaTeX, to be published in Phys. At. Nucl. (2005

    Fragmentation and Multifragmentation of 10.6A GeV Gold Nuclei

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    We present the results of a study performed on the interactions of 10.6A GeV gold nuclei in nuclear emulsions. In a minimum bias sample of 1311 interac- tions, 5260 helium nuclei and 2622 heavy fragments were observed as Au projec- tile fragments. The experimental data are analyzed with particular emphasis of target separation interactions in emulsions and study of criticalexponents. Multiplicity distributions of the fast-moving projectile fragments are inves- tigated. Charged fragment moments, conditional moments as well as two and three -body asymmetries of the fast moving projectile particles are determined in terms of the total charge remaining bound in the multiply charged projectile fragments. Some differences in the average yields of helium nuclei and heavier fragments are observed, which may be attributed to a target effect. However, two and three-body asymmetries and conditional moments indicate that the breakup mechanism of the projectile seems to be independent of target mass. We looked for evidence of critical point observable in finite nuclei by study the resulting charged fragments distributions. We have obtained the values for the critical exponents gamma, beta and tau and compare our results with those at lower energy experiment (1.0A GeV data). The values suggest that a phase transition like behavior, is observed.Comment: latex, revtex, 28 pages, 12 figures, 3tables, submitted to Europysics Journal
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