• Journal of Korean Medicine Rehabilitation
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• v.18 no.3
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• pp.91-98
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• 2008

Objectives : The purpose of this study is to evaluate flexor-extensor muscle strength of trunk according to Sasang constitution. Methods : This study was carried out with the data from comprehensive medical testing. People were performed Trunk Extension Flexion(TEF) Program of CYBEX NORM System and QSCC(Questionnaire of Sasang Constitution Classification) II test. And then we made three groups according to Sasang constitution and analyzed isokinetic strength on the TEF. Results : 1. A significant difference(Taeumin>Soeumin>Soyangin) was found in flexor muscle peak torque(PT) of trunk according to Sasang constitution(P<0.05). 2. A significant difference was not found in flexor muscle peak torque%body weight (PT%BW) of trunk according to Sasang constitution. 3. A significant difference(Taeumin>Soeumin>Soyangin) was found in extensor muscle peak torque(PT) of trunk according to Sasang constitution(P<0.05). 4. A significant difference(Soeumin>Taeumin>Soyangin) was found in extensor muscle peak torque%body weight(PT%BW) of trunk according to Sasang constitution(P<0.05). Conclusions : There is a significant difference in isokinetic strength on the TEF according to Sasang constitution.

• Structural Engineering and Mechanics
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• v.2 no.3
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• pp.245-256
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• 1994

A new axisymmetric crack model is proposed on the basis of p-version of the finite element method limited to theory of small scale yielding. To this end, axisymmetric stress element is formulated by integrals of Legendre polynomial which has hierarchical nature and orthogonality relationship. The virtual crack extension method has been adopted to calculate the stress intensity factors for 3-D axisymmetric cracked bodies where the potential energy change as a function of position along the crack front is calculated. The sensitivity with respect to the aspect ratio and Poisson locking has been tested to ascertain the robustness of p-version axisymmetric element. Also, the limit value that is an exact solution obtained by FEM when degree of freedom is infinite can be estimated using the extrapolation equation based on error prediction in energy norm. Numerical examples of thick-walled cylinder, axisymmetric crack in a round bar and internal part-thorough cracked pipes are tested with high precision.

• Journal of Fisheries and Marine Sciences Education
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• v.5 no.1
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• pp.15-22
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• 1993

The Maritime Traffic Safety Law of P. R. China has not the legal nature of navigation rule which regulates the vessel traffic directly but has the legal nature of management to ensure the safety and good order of the whale marine traffic. For that reason, the legal status of this Law is a general basic norm for the marine safety regulations rather than a definite enforcement regulation. This Law does not have any clear statements on adaptation of the steering and sailing rules of the International Regulations for Preventing Collisions at Sea, but it can be presumed the Convention would be applied on the viewpoint of the international practice. The subject matter of this Law is easily understandable, because the IMO and shipping countries have already made similar legislation. Since the maritime traffic condition of the P. R. China also has a direct effect upon the Korean coastal waters, it is essential to observe closely the process of enforcement and development of the P. R. China's Maritime Traffic Safety Law.

• Proceedings of the Computational Structural Engineering Institute Conference
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• 1990.04a
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• pp.65-69
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• 1990

The elastic analysis of floor slabs using the p-version of finite element method encounters stress singularities at certain types of reentrant corners, openings and cut-outs. Results obtained using the computer code based on C$\^$o/-hierarchic plate element formulated by Reissner-Mindlin theory are compared with theoretical predictions and with computational results reported in the literature. The convergence rate of h-, p- and hp-version can be estimated on the basis of the energy norm in global sense. If accuracy in terns of the number of degrees-of-freedom is used as a criterion, the solutions presented here are the most efficient that have been published up to date. Examples are the rhombic plate with the obtuse angle of 150o and the square plate with cut-outs.

• Bulletin of the Korean Mathematical Society
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• v.56 no.3
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• pp.745-756
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• 2019

We obtain Lipschitz type characterization and double integral characterization for Fock-type spaces with the norm $${\parallel}f{\parallel}^p_{F^p_{m,{\alpha},t}}\;=\;{\displaystyle\smashmargin{2}{\int\nolimits_{{\mathbb{C}}^n}}\;{\left|{f(z){e^{-{\alpha}}{\mid}z{\mid}^m}}\right|^p}\;{\frac{dV(z)}{(1+{\mid}z{\mid})^t}}$$, where ${\alpha}>0$, $t{\in}{\mathbb{R}}$, and $m{\in}\mathbb{N}$. The results of this paper are the extensions of the classical weighted Fock space $F^p_{2,{\alpha},t}$.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.5
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• pp.384-393
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• 2019

This study was conducted to investigate the factors influencing the contraceptive behavior of male and female university students. Data were collected after receiving the written consent of 238 university students in G city during the period from September 22 to November 23 in 2017. Data analysis was performed using the SPSS PASW 18.0 program. The results revealed that 56.7% of the subjects used contraceptives, and 23.9% used condoms. Male students were more exposed to sexual content than female students (t=6.02, p=0.000) and had an open sexual attitude (t=5.38, p=0.000). Female students showed high scores on subjective norms (t=-3.51 p=0.000) and acceptable and positive contraceptive attitudes (t=-4.21, p=0.000). Among factors influencing the contraceptive attitude of males, the subjective norm was 3.6%. Female students had a 25.5% influence on contraceptive attitude, contraception, sexual education frequency, and sexual content exposure. It is suggested that sexual education and sexual counseling programs be developed to form positive attitudes toward contraceptives through iterative research.

• The Transactions of the Korean Institute of Electrical Engineers P
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• v.54 no.3
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• pp.129-133
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• 2005

In this paper we present a new PID controller design method using IMC design. The PID controller is derived based on the ${\infty}$-norm of sensitivity function to guarantee stability and performance robustness. This new PID controller is suitable for the plant with right half plane zeros or with time delay. The Simulation results show that the new method is superior to Ziegler-Nichols, Morari-Zafiriou, Mattezzoni-Rocco methods in respects in overshoot and settling time.

• The Pure and Applied Mathematics
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• v.20 no.1
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• pp.11-23
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• 2013

In this paper, we obtain a common fixed point theorem for multivalued mappings in a complete Menger $\mathcal{L}$-fuzzy metric space. $\mathcal{L}$-fuzzy metric space is a generalization of fuzzy metric spaces and intuitionistic fuzzy metric spaces. We extend and generalize the results of Kubiaczyk and Sharma [24], Sharma, Kutukcu and Rathore [34].

• Journal of the Korean Mathematical Society
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• v.44 no.6
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• pp.1255-1266
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• 2007

We establish a weighted norm inequality for a class of rough parametric Marcinkiewicz integral operators $\mathcal{M}^{\rho}_{\Omega}$. As an application of this inequality, we obtain weighted $L^p$ inequalities for a class of parametric Marcinkiewicz integral operators $\mathcal{M}^{*,\rho}_{\Omega,\lambda}\;and\;\mathcal{M}^{\rho}_{\Omega,S}$ related to the Littlewood-Paley $g^*_{\lambda}-function$ and the area integral S, respectively.

• Bulletin of the Korean Mathematical Society
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• v.33 no.3
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• pp.377-383
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• 1996

We consider in this paper the following nonlinear regression model $$ (1.1) y_t = f(x_t, \theta_o) + \in_t, t = 1, \ldots, n, $$ where $y_t$ is the tth response, $x_t$ is m-vector imput variable, $\theta_o$ is a p-vector of unknown parameter belong to a parameter space $\Theta, f:R^m \times \Theta \ to R^1$ is a nonlinear known function, and $\in_t$ are independent unobservable random errors with finite second moment.