12 research outputs found
Asymptotic behavior of solutions of the damped Boussinesq equation in two space dimensions
The Cauchy problem for the damped Boussinesq equation with small initial data is considered in two space dimensions. Existence and uniqueness of its
classical solution is proved and the solution is constructed in the form of a series. The major term of its long-time asymptotics is calculated explicitly and a uniform in space estimate of the residual term is given
Long-time asymptotics of solutions of the second initial-boundary value problem for the damped Boussinesq equation
For the damped Boussinesq equation uttâ2butxx=âαuxxxx+uxx+ÎČ(u2)xx,xâ(0,Ï),t>0;α,b=const>0,ÎČ=constâR1, the second initial-boundary value problem is considered with small initial data. Its classical solution is constructed in the form of a series in small parameter present in the initial conditions and the uniqueness of solutions is proved. The long-time asymptotics is obtained in the explicit form and the question of the blow up of the solution in a certain case is examined. The possibility of passing to the limit bâ+0 in the constructed solution is investigated
New affinity sorbents for purification of recombinant proteins with the use of chitin-binding domain as an affinity tag
With the increasing amounts of recombinant proteins production the problem of effective purification of produced proteins became one of major topics for research nowadays. Affinity chromatography proved to be the most dominant method for this aim and application of chitin based affinity sorbents in combination with use of chitin-binding domain as an affinity tag for purification of recombinant proteins showed its efficiency even in comparison with commercially available systems
Updated Photonuclear Data Library and Database for Photon Strength Functions
Photonuclear cross sections and gamma-ray data used to extract Photon Strength Functions are important for a large range of applications including basic sciences. The recommendations of an IAEA Consultantâs Meeting to update the IAEA Photonuclear Data Library and create a Reference Database for Photon Strength Functions are presented
Updated Photonuclear Data Library and Database for Photon Strength Functions
Photonuclear cross sections and gamma-ray data used to extract Photon Strength Functions are important for a large range of applications including basic sciences. The recommendations of an IAEA Consultantâs Meeting to update the IAEA Photonuclear Data Library and create a Reference Database for Photon Strength Functions are presented
Formation and characterization of succinoyl chitosan particles loaded with warnerin
This study aims to obtain nanoparticles based on succinoyl chitosan loaded with Warnerin (War-SCNPs), low molecular weight cationic peptide. The nanoparticles of succinoyl chitosan (SCNPs) were prepared by salt coacervation method, and Warnerin loading efficiency on SCNPs was reached 75% in the optimum conditions, particularly, ration (SCNPs : peptide) was equal to (1.75 : 1, ÎŒg / ml ). Formed War-SCNPs were stable, had a weak electric charge from (-4.4) to (-14,6) mV. Determining of SCNPs size showed that a main fraction of SCNPs had the size of 160 nm, and after the peptide sorption War-SCNPs size increased up to 330 nm. The experimental data of this study will likely impact War-SCNPs use as therapeutic delivery systems of the peptide to be administered parenteral
Isomorphism and Mutual Transformations of S-Bearing Components in Feldspathoids with Microporous Structures
The isomorphism of S-bearing feldspathoids belonging to the cancrinite, sodalite, tugtupite, vladimirivanovite, bystrite, marinellite and scapolite structure types has been investigated using a multimethodical approach based on infrared, Raman and electron spin resonance (ESR), as well as ultraviolet, visible and near infrared (UVâVisânear IR) absorption spectroscopy methods and involving chemical and X-ray diffraction data. Sapozhnikovite Na8(Al6Si6O24)(HS)2 and sulfite and thiosulfate analogues of cancrinite are synthesized hydrothermally and characterized by means of electron microprobe analyses, powder X-ray diffraction and Raman spectroscopy. The possibility of the incorporation of significant amounts of SO42â, S4 and SO32â in the crystal structures of cancrisilite, sulfhydrylbystrite and marinellite, respectively, has been established for the first time. Thermal conversions of S-bearing groups in the synthetic sulfite cancrinite and sapozhnikovite analogues as well as natural vladinirivanovite and S4-bearing haĂŒyne under oxidizing and reducing conditions have been studied using the multimethodical approach. The SO42â and S2â anions and the S3âąâ radical anion are the most stable S-bearing species under high-temperature conditions (in the range of 700â800 °C); their ratio in the heated samples is determined by the redox conditions and charge-balance requirement. The HSâ and S52â anions are stable only under highly reducing conditions
Updated Photonuclear Data Library and Database for Photon Strength Functions
Photonuclear cross sections and gamma-ray data used to extract Photon Strength Functions are important for a large range of applications including basic sciences. The recommendations of an IAEA Consultantâs Meeting to update the IAEA Photonuclear Data Library and create a Reference Database for Photon Strength Functions are presented
Erratum: Photoneutron cross-section measurements in the 209Bi(Îł,xn) reaction with a new method of direct neutron-multiplicity sorting [Phys. Rev. C 96, 044604 (2017)]
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