• Bulletin of the Korean Mathematical Society
• /
• v.54 no.1
• /
• pp.225-242
• /
• 2017

A family of $Ap{\acute{e}}ry$-like series involving reciprocals of central binomial coefficients is studied and it is shown that they represent transcendental numbers. The structure of such series is further examined in terms of finite combinations of logarithms and arctangents with arguments and coefficients belonging to a suitable algebraic extension of rationals. Monotonicity of certain quotients of weighted binomial sums which arise in the study of competitive cheap talk models is established with the help of a continuous extension of the discrete model at hand. The monotonic behavior of such quotients turns out to have important applications in game theory.

• BMB Reports
• /
• v.43 no.3
• /
• pp.158-163
• /
• 2010

Calumenin is a multiple EF-hand $Ca^{2+}$-binding protein located in the endo/sarcoplasmic reticulum of mammalian hearts. Calumenin belongs to the CREC family of $Ca^{2+}$-binding proteins having multiple EF-hands. $Ca^{2+}$ homeostasis in the sarcoplasmic reticulum (SR) of mammalian hearts is maintained by RyR2, SERCA2 and other associated SR resident proteins. Evidence suggests that calumenin interacts with RyR2 and SERCA2, and therefore changes in the expression of calumenin could alter $Ca^{2+}$ cycling in mouse heart. In this review, current knowledge of the biochemical and functional roles of calumenin in mouse heart is described.

• Proceedings of the Korean Biophysical Society Conference
• /
• 1999.06a
• /
• pp.55-55
• /
• 1999

Imperatoxin A (IpTx$_{a}$), a 3.7 kDa peptide from the African scorpion Pandinus imperator, has been known as an agonist of skeletal ryanodine receptor (RyR). In order to study the structure and function of the toxins on RyR, the IpTx$_{a}$ cDNA was PCR-amplified using 3 pairs of primers and the toxin was expressed in E. coli expression system.(omitted)ted)

• Proceedings of the KIEE Conference
• /
• 1993.07a
• /
• pp.128-130
• /
• 1993

In this paper, we introduce 'Expert System(ES)' for Fault Diagnosis(FD) in unmanned-Substation(S/S). In contrast with the co nventional ES, this ES has the following characteristics. First, this ES performs the function that judges the right or false operation of Relays(Ry's) and Circuit Breakers(CB's) in S/S. Then, with this information of the above judgments and the operating times of Ry's and CB's, the candidates of the feasible fault areas are generated. Several examples are presented to show the validity of this system.

• Proceedings of the Korean Vacuum Society Conference
• /
• 2000.02a
• /
• pp.142-142
• /
• 2000

We performed a total energy calculation of clean alumunum surfaces of three low indices based on a density functional theory with a local density approximation, using the Ceperly-Alder exhange correlation parametrized by Perdew and Zunger. Pseudopotentials were generated for Al of which the plane wave cut-off was 15Ry. We used Gaussian broadening of a Fermi level to accelerate the convergence of our calculation with the Gaussian energy smearing parameter of 0.005Ry. First, we determine the lattice constant of the aluminum of an face-centered-cubic structure to be 3.96 which is comparable to the experimental data of 4.05 . The cohesive energy of 4.20eV/atom and the bulk modulus of 0.775$\times$1012dyne/cm2 are also comparable to the experimental values of 3.39eV/atom and 0.772$\times$1012dyne/cm2, respectively. Then we investigated the surface relaxation of (100), (110) and (111) surfaces using a 9-layer slab separated by 6-layer thick vacuum. The results are consistent with the existing experimental results.

• Proceedings of the Korea Society of Costume Conference
• /
• 2005.10a
• /
• pp.240-241
• /
• 2005

• Journal of the Chungcheong Mathematical Society
• /
• v.21 no.4
• /
• pp.511-517
• /
• 2008

In this paper, we investigate h-stability of nonlinear integro-differential equations.

• Proceedings of the Korean Society of Grassland Science Conference
• /
• 2003.06a
• /
• pp.178.1-178
• /
• 2003

• Journal of the Chungcheong Mathematical Society
• /
• v.23 no.4
• /
• pp.827-834
• /
• 2010

In this paper, we investigate h-stability of the nonlinear perturbed differential systems.

• Biotechnology and Bioprocess Engineering:BBE
• /
• v.11 no.2
• /
• pp.89-95
• /
• 2006

Potato plants carrying the Ry gene are extremely resistance to a number of potyviruses, but it is not known which variety expressed the resistance. In this investigation, combined classical and molecular techniques were used to identify virus resistance potatoes. Mechanical inoculation of 32 varieties of Korean potato cultivars, with potato virus Y (PVY), induced various symptoms, such as mosaic, yellowing, necrosis, mottle, vein clearing and vein bending. Different virus spreading patterns were observed, such as highly sensitive, moderate and resistant to $PVY^o$ inoculated leaves in different cultivars. From the results of double antibody sandwich-enzyme links immunosorbant assays (DAS-ELISA), coupled with reverse transcription polymerase chain reaction (RT-PCR), Winter valley and Golden valley were found to be highly susceptible and resistant cultivars to $PVY^o$ respectively. TEM was used as a complementary method to conform the localization of the virus in leaf tissues. TEM detect virus particles in Golden valley, where, ELISA and RT-PCR were unable to detect the CP gene. However, the interior part of the tissues was severely deformed in $PVY^o$ infected Winter valley, than Golden valley The Ry gene is involved in an induced response in $PVY^o$ infected Golden valley plants. The methods described in this study could be applied for the screening and development of antiviral potatoes.