Proceedings 6th Russian-Korean International Symposium on Science and Technology. KORUS-2002 (Cat. No.02EX565)
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Analysis of environment ecological parameters by means of tree-rings
- Trang 208-210
Climate is the main factor limiting capability of forest and communities in many
areas of the world. By means of tree-ring analysis it is possible to make a
reconstruction of many important climatic and hydrological characteristics. This
paper describes a method of determination of climatic parameters with the help
of tree-rings analysis.
#Filtration #Polynomials #Filters #Image reconstruction #Temperature #Fluctuations #Lakes #Rivers #Vegetation mapping #Mathematical model
The dielectric and piezoelectric properties of MBi/sub 4/Ti/sub 4/O/sub 15/ (M=Sr, Sr/sub 0.5/Ca/sub 0.5/, Ca) ceramics
- Trang 284-287
We have investigated the crystalline structure, dielectric, ferroelectric and
piezoelectric properties of the MBi/sub 4/Ti/sub 4/O/sub 15/ (M=Sr, Ca, Sr/sub
0.5/Ca/sub 0.5/) ceramics. The remanent polarization(P/sub r/) of SrBi/sub
4/Ti/sub 4/O/sub 15/(SBT) and CaB/sub 14/Ti/sub 4/O/sub 15/(CBT) ceramics was
2.2 /spl mu/C/cm/sup 2/ and 0.3 /spl mu/C/cm/sup 2/, respectively. The k/sub t/
of SBT and...
#Strontium #Ceramics #Ferroelectric materials #Powders #Hafnium #X-ray scattering #Biological materials #Dielectric materials #Piezoelectric materials #Scanning electron microscopy
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
Method of comparative estimation of materials fatigue damage
- Trang 47-49
In order to improve the quality of estimates that are obtained from experiments
with different loading cycles, we suggest the following method of materials
fatigue testing. During rotation the sample is loaded with cylindrical bend.
Cross-section of a sample represents a symmetric cross. Irregular rotation of a
the sample within one turn creates different forms of loading cycle in
relatively perpe...
#Life estimation #Fatigue #Stress #Materials testing #Aerospace testing #Aerospace materials #Aircraft manufacture #Costs #Shafts #Surface cracks
Management of process of plasma etching of silicon
- Trang 389-392
The research of process of plasma etching of silicon in CF/sub 2/Cl/sub 2//O/sub
2/ plasma on the installation "Plasma-600" is carried out. The covering of
quartz walls of the reactor by fluorine polymer results in increase of speed of
etching. The increase, observed in experiment, of concentration of chemically
active particles (CAP) testifies to decrease by 10 times the probability of
destructio...
#Plasma applications #Etching #Silicon #Plasma chemistry #Inductors #Polymers #Plasma materials processing #Spectroscopy #Plasma properties #Plasma diagnostics
Theoretical and experimental research of the oriental medicine PSC phenomenon on the fractal-field model base of the biological rhythms
- Trang 471-474
This article discusses the theoretical origin of acupuncture points, meridians,
energy Q1 concepts on the basis of the proposed fractal-field model of
biological rhythms. This model was applied for the painful syndrome treatment of
the support-motive organs. The clinical research investigated the correlation
between the "de Q1" phenomenon (PSC) propagation variants and the attendant cure
effect de...
#Fractals #Rhythm #Biological system modeling #Resonance #Physics #Open systems #Constitution #Humans #History #Books
Mumie constituents and their biological activity: modulation of reactive oxygen species (ROS) production of macrophages
- Trang 486-489
For investigation of mumie constituents, the isolation of substances was
performed by the classical method of humic substances fractionation that is
based on their different solubility in water at different pH and ion-exchange
properties. The elution patterns were investigated by size-exclusion
chromatography using Sephadex G25, and the fractions obtained were characterized
by UV-Vis absorbance, f...
#Oxygen #Fluorescence #Production #Fractionation #Drugs #Infrared spectra #Immune system #Biology #Water #Spectroscopy
Electrochemical microplasma processes of wear and corrosion resistant coatings formation on parts of oil equipment
- Trang 344-346
Composite coatings formed using electrochemical microplasma processes have high
stability to mechanical wear and corrosion. It allows to put and to solve a
problem of replacement of steel parts in oil industry by aluminium alloys with
microplasma coatings. The research was executed on samples of aluminium alloys
D-16, AL-7 and V-95. The following requirements apply to protective coatings on
these ...
#Corrosion #Coatings #Voltage #Shape #Surface resistance #Surface discharges #Petroleum #Chemistry #Steel #Aluminum alloys
Estimation of quality of life in Korean cities
- Trang 93-95
This paper estimated the level of quality of life of 74 cities in Korea. In
order to figure out the quality of life in those cities, the author estimated
wage and housing expenditure functions through the hedonic method. By using the
coefficients of the estimated these functions, he then calculated 15 implicit
factor prices associated with quality of life. For this, Korean Household Panel
Data and...
#Life estimation #Cities and towns #Remuneration #Productivity #Cost function #Differential equations
New method of the transmission line protection
- Trang 406-409
This paper presents the new method of transmission line protection based on
modeling of the line's ABCD constants. The method is based on a comparison
between the actual values of current and/or voltage at the sending end of the
protected section of a line and the same values calculated by means of current
and voltage parameters at the receiving end of the protected section provided
that there are...
#Power system protection #Voltage #Power transmission lines #Protective relaying #Equations #Power system interconnection #Power system relaying #Power system modeling #Power generation #Propagation constant