Proceedings 6th Russian-Korean International Symposium on Science and Technology. KORUS-2002 (Cat. No.02EX565)
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New methods of generation of electrophilic iodine in neutral and weakly acidic media
- Trang 314-316
We have developed new methods to generation of electrophilic iodine on the base
iodine chloride and different salts: ICl+MeX/spl rarr/I/sup +/X/sup -/+MeCl,
Me=Ag/sup +/, Pb/sup +/, Na/sup +/; X=CF/sub 3/COO/sup -/, CH/sub 3/COO/sup -/.
Iodinating ability of obtained reagents has been studied on aromatic (including
polycyclic) and heterocyclic compounds.
#Silver #Chemistry #Temperature #Oxidation #Atmosphere #Nitrogen #Electronic mail #Medical diagnostic imaging #Modems #Lead
The mechanism of capsaicin-induced apoptosis in colon cancer cells
- Trang 490-493
Both the engagement of the T cell receptor with MHC-Ag complex and a second
costimulatory signal are required for optimal T cell activation. Since T cells
become nonreactive or tolerant without the second signal, blocking the
appropriate costimulatory signal provided by APCs and T cells has been
successful transplantation of allogeneic organs. We investigated the role of
4-1BB, an important costim...
#Colon #Cancer #Distributed control #Immune system #In vivo #Mice #Cells (biology) #Biology #Fluids and secretions #Neoplasms
A design and fabrication of the receiver one-chip MMIC for L-band
- Trang 367-369
This paper describes a design and fabrication of one-chip receiver MMIC for
L-band applications. The LNA, double balanced mixer, LO balun, RF balun, IF
amplifier and a bias circuit are integrated a chip. Each balun operates active
and composed of MESFETs. The new applied bias circuit is able to compensate the
variation of the threshold voltage caused by the process variation, temperature
changes, ...
#Fabrication #MMICs #L-band #Impedance matching #Circuits #MESFETs #Radio frequency #Radiofrequency amplifiers #Threshold voltage #Temperature
A generalized numerically constructed image system and its use in the calculation of the flow around a ship hull
- Trang 21-24
How to construct an image source system for an arbitrarily shaped body is
considered and its use in calculating the flow around a ship hull is
demonstrated with the example of calculated wave pattern. Only the source
strengths on the free surface, excluding the hull surface sources, play the role
of unknowns by the use of this concept. The full nonlinear free surface boundary
conditions are satisf...
#Marine vehicles #Velocity control #Boundary conditions #Systems engineering and theory #Surface waves #Hydrodynamics #Equations #Aerospace control
Outcomes of overvoltage monitoring and fault location in underground distribution networks
- Trang 447-451
This paper describes an information-measuring system for surge voltages
monitoring and the outcomes of multi-year monitoring in 10 kV underground
distribution networks. The statistical analysis of monitoring outcomes has shown
a low level of the most often overvoltages in networks originating during
restriking earth faults (REFs). For automatic location of REFs, a parametrical
method based on the ...
#Voltage control #Fault location #Intelligent networks #Breakdown voltage #Surges #Insulation #Earth #Computerized monitoring #Power cables #Life testing
Breaking strength of base metal-coating composition
- Trang 178-181
The influence of coatings on the change in crack resistance of the substrate
must be evaluated. The mechanical properties of the base metal as determined
after ion-plasma spraying of titanium nitride coatings do not significantly
depend on the duration of heating during spraying (/spl sigma//sub 0.2/=1150,
/spl sigma//sub 2/=1400; /spl Psi/=36%). Characteristics obtained by testing
metal specimens...
#Coatings #Thermal spraying #Surface cracks #Surface resistance #Mechanical factors #Steel #Plasma temperature #Titanium #Heating #Plasma properties
Influence of the streamwise surface bulges upon flow separation from the wing
- Trang 25-28
In our experimental research we compared the flows over the upper surface of the
usual straight wing and the wing with streamwise bulges, imitating the wing of a
paraplan. We found the significant T-D structure in the zone of laminar
separation bubbles, and the differences in their forms and sizes. On the whole,
the obtained results show the strong dependence of flow structure on fluent
streamwise...
#Visualization #Ribs #Shape #Aerospace testing #Powders #Topology #Joining processes
The complex of programs for data handling of kinetics of ion exchange sorption
- Trang 311-313
The combined mathematical model of ion exchange sorption, which includes
equations of saturation, formalistic kinetics and one of the diffusion equations
of heterophase processes was suggested. On the basis of this model the
tree-module program complex has been developed. The first program module
includes the equation of accumulation of sorbate subject to two kinds of
sorption centers: internal an...
#Data handling #Kinetic theory #Equations #Mathematical model #Solids #Thermodynamics #Knowledge based systems #Temperature dependence #Isotopes #Filling
Difference in the recovery of pulmonary function between pulmonary and extrapulmonary acute respiratory distress syndrome
- Trang 508-511
We investigated long-term outcomes in patients with pulmonary and extrapulmonary
ARDS including all items of PFT, gas exchange, quality of life, and HRCT, which
had not been dealt comprehensively in previous studies. We found that, although
most abnormalities on PFT were mild, 62.9% and 51.8% of the patients showed
abnormality in PFT and exercise PFT, respectively after more than six months of
ARD...
#Medical diagnostic imaging #Lungs #Sun #Ventilation #Educational institutions #Lesions #Injuries #Radiology #Permeability #Diagnostic radiography
The model analysis of influence of a secondary adsorption of cations on a structure of a double electrical stratum
- Trang 307-310
The influence of specifically unadsorbed cations of a base electrolyte on a
structure of a double electrical layer in region of potentials of a specific
adsorption of anions is considered. The assumption about introduction (secondary
adsorption) cations in a compact part of a double layer as a result of their
interaction with the specifically adsorbed anions is necessary in a basis of the
analysis...
#Electrodes #Chemical technology #Equations #Thermodynamics #Chemistry #Chemical analysis #Solid state circuits #Electrochemical processes #Platinum #Dielectric constant