86 research outputs found
Supersymmetry of Tensionless Rotating Strings in AdS_5 x S^5, and Nearly-BPS Operators
It is shown that a class of rotating strings in AdS_5 x S^5 with SO(6)
angular momenta (J,J',J') preserve 1/8-supersymmetry for large J,J', in which
limit they are effectively tensionless; when J=0, supersymmetry is enhanced to
1/4. These results imply that recent checks of the AdS/CFT correspondence
actually test a nearly-BPS sector.Comment: 12 pages, no figures; v2: new section on CFT operators and new
references added, discussion section and acknowledgements modified, abstract
rephrashe
IMPLEMENTATION OF A HIGH-EFFICIENT ELEMENTARY HEATER IN THE CIRCUIT OF AN EXISTING EVAPORATOR WITH THE PURPOSE OF SAVING HEATING STEAM
he paper gives a brief description of the method for producing alumina (Al2O3) by the Bayer method.This work was supported by the Russian Foundation for Basic Research (grant # 19-53-55002)
Lead content and isotopic composition in submound and recent soils of the Volga upland
Literature data on the historical reconstructions of the atmospheric lead deposition in Europe and the isotopic composition of the ores that are potential sources of the anthropogenic lead in the atmospheric deposition in the lower Volga steppes during different time periods have been compiled. The effect of the increasing anthropogenic lead deposition recorded since the Bronze Age on the level of soil contamination has been investigated. For the first time paleosol buried under a burial mound of the Bronze Age has been used as a reference point to assess of the current contamination level. The contents and isotopic compositions of the mobile and total lead have been determined in submound paleosols of different ages and their recent remote and roadside analogues. An increase in the content and fraction of the mobile lead and a shift of its isotopic composition toward less radiogenic values (typical for lead from the recent anthropogenic sources) has been revealed when going from a Bronze-Age paleosol to a recent soil. In the Bronze-Age soil, the isotopic composition of the mobile lead is inherited from the parent rock to a greater extent than in the modern soils, where the lead is enriched with the less radiogenic component. The effect of the anthropogenic component is traced in the analysis of the mobile lead, but it is barely visible for the total lead. An exception is provided by the recent roadside soils characterized by increased contents and the significantly less radiogenic isotopic composition of the mobile and total lead
Features of construction of control system by an innovative risk
Π ΡΠ°Π±ΠΎΡΠ΅ ΡΠ°ΡΠΊΡΡΠ²Π°Π΅ΡΡΡ ΠΏΠΎΠ½ΡΡΠΈΠ΅ ΠΈΠ½Π½ΠΎΠ²Π°ΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ ΡΠΈΡΠΊΠ° ΠΏΡΠΎΠΌΡΡΠ»Π΅Π½Π½ΠΎΠ³ΠΎ ΠΏΡΠ΅Π΄ΠΏΡΠΈΡΡΠΈΡ, ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΡΡΡ Π°Π½Π°Π»ΠΈΠ· ΠΎΡΠ½ΠΎΠ²Π½ΡΡ
ΠΏΠΎΠ΄Ρ
ΠΎΠ΄ΠΎΠ² ΠΊ ΠΏΠΎΡΡΡΠΎΠ΅Π½ΠΈΡ ΡΠΈΡΡΠ΅ΠΌ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ ΡΠΈΡΠΊΠ°ΠΌΠΈ. Π€ΠΎΡΠΌΡΠ»ΠΈΡΡΡΡΡΡ ΡΠΎΡΡΠ°Π²Π»ΡΡΡΠΈΠ΅ ΡΠΈΡΡΠ΅ΠΌΡ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ ΠΈΠ½Π½ΠΎΠ²Π°ΡΠΈΠΎΠ½Π½ΡΠΌ ΡΠΈΡΠΊΠΎΠΌ ΠΏΡΠΎΠΌΡΡΠ»Π΅Π½Π½ΠΎΠ³ΠΎ ΠΏΡΠ΅Π΄ΠΏΡΠΈΡΡΠΈΡ. ΠΡΠ΅Π΄Π»Π°Π³Π°Π΅ΡΡΡ ΠΎΡΠΈΠ³ΠΈΠ½Π°Π»ΡΠ½Π°Ρ ΠΎΡΠ³Π°Π½ΠΈΠ·Π°ΡΠΈΠΎΠ½Π½Π°Ρ ΡΡ
Π΅ΠΌΠ° ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ ΠΈΠ½Π½ΠΎΠ²Π°ΡΠΈΠΎΠ½Π½ΡΠΌ ΡΠΈΡΠΊΠΎΠΌ ΠΊΠΎΠΌΠΏΠ°Π½ΠΈΠΈ, Π±Π°Π·ΠΈΡΡΡΡΠ°ΡΡΡ Π½Π° ΠΏΡΠΈΠ½ΡΠΈΠΏΠ°Ρ
ΠΈΠ½ΡΠ΅Π³ΡΠ°ΡΠΈΠΈ, ΡΡΠ΅ΡΠ° ΡΠΈΠ½Π΅ΡΠ³Π΅ΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΡΡΠ΅ΠΊΡΠ°, ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ ΠΏΠΎΡΡΡΠ΅Π»ΡΠ½ΠΎ-ΠΏΡΠΎΠ΅ΠΊΡΠ½ΠΎΠ³ΠΎ ΠΏΠΎΠ΄Ρ
ΠΎΠ΄Π°, Π° ΡΠ°ΠΊΠΆΠ΅ Π±Π°Π»Π°Π½ΡΠΈΡΠΎΠ²ΠΊΠΈ ΠΌΠ΅ΠΆΠ΄Ρ ΡΠΈΡΠΊΠΎΠΌ ΠΈ Π΄ΠΎΡ
ΠΎΠ΄Π½ΠΎΡΡΡΡ ΠΈΠ½Π²Π΅ΡΡΠΈΡΠΈΠΉ.Concept of innovative risk of industrial enterprise is given. Basic approaches to the construction of systems of risk management are analyzed. Elements of construction of systems of risk management are formed. Original organizational chart of risk management based on the integration principles, taking into account synergetic effect, using project approach and balance between risk and profitableness of investments is suggested
Method for evaluating thrombin concentration based on the data of monitoring the viscoelastic properties of native blood in the process of hemocoagulation
The process of native blood coagulation was studied with the resonant-acoustic method using the technology of low-frequency piezothromboelastography. It is shown that the experimental curve of time dependence of the piezoelectric sensor signal amplitude reflects the change in the rheological properties of blood during coagulation. A formula is obtained that relates the change in the concentration of thrombin to the rate of change in the complex coefficient of blood viscosity. A method has been developed for assessing thrombin concentration during fibrinogenesis based on the technology of piezothromboelastography using a resonant-acoustic method for determining the viscoelastic properties of whole blood. The results of calculating the thrombin concentration by this method are compared with the results of the thrombin generation test
- β¦