Results 21 to 30 of about 56,723 (264)

Free vibration analysis of functionally graded double-beam system using Haar wavelet discretization method

Engineering Science and Technology, an International Journal, 2021
In this paper, the free vibration characteristics of functionally graded double-beam system (FGDBS) elastically connected by an elastic layer with uniform elastic stiffness under arbitrary boundary conditions are investigated.
Gwanghun Kim, Poknam Han, Kwangil An, Dongson Choe, Yonguk Ri, Hyonil Ri   +5 more
doaj   +1 more source

Changes within the Democratic People’s Republic of Korea’s Society: Involvement of the Non–Governmental Actors [PDF]

, 2017
The monograph provides knowledge on the complex nature of both external and internal determinants influencing foreign policies of East Asian countries.
Procházka, Miloš
core   +1 more source

Study on electrochemical properties of Pb(BF4)2 electrolyte for improvement of cycle lifetime and efficiency in soluble lead flow batteries

Journal of Saudi Chemical Society, 2022
The electrochemical characteristics of a soluble lead flow battery are key factors for the improvement of its cyclic lifetime and efficiency. In this work, we suggested aqueous solution of Pb(BF4)2 and HBF4 as the electrolytes of soluble lead flow ...
You Gyong Ho, Mun Gi Kim, Gang Hyok Kim, Song Chol Jong, Jin Sim Kim   +4 more
doaj   +1 more source

Uniqueness of solution to scalar BSDEs with $L\protect \qopname{}{o}{exp}\left(\mu _0\protect \sqrt{2\protect \qopname{}{o}{log}(1+L)}\right)$-integrable terminal values: an $L^1$-solution approach

Comptes Rendus. Mathématique, 2021
This paper deals with a class of scalar backward stochastic differential equations (BSDEs) with $L\exp (\mu _0\sqrt{2\log (1+L)})$-integrable terminal values for a critical parameter $\mu _0>0$.
O, Hun, Kim, Mun-Chol, Pak, Chol-Gyu
doaj   +1 more source

Representation of solution of initial value problem for fuzzy linear multi-term fractional differential equation with continuous variable coefficient

AIMS Mathematics, 2019
We consider the representation of solutions of the initial value problems of fuzzy linear multi-term in-homogeneous fractional differential equations with continuous variable coefficients.
Huichol Choi, Kinam Sin, Sunae Pak, Kyongjin Sok, Sungryol So   +4 more
doaj   +1 more source

Nonlinear vibration analysis and stability analysis of rotor systems with multiple localized nonlinearities

AIP Advances, 2022
This study proposes a methodology to analyze the nonlinear vibration characteristics of rotor systems with multiple localized nonlinearities adopting the Finite Element Method (FEM), free interface Component Mode Synthesis (CMS) method, and modified ...
Tongil Choe, Kwangchol Ri, Cholil Yun, Kumchol Kim, Kwangchol Kim   +4 more
doaj   +1 more source

Adhesive properties of water-soluble and biodegradable hot-melt adhesive based on partially saponified poly(vinyl acetate)

Materials Research Express, 2020
Partially saponified low molecular weight (LMW) PVAc was synthesized and blended with a tackifier for use as hot-melt adhesive with water-solubility and biodegradibility.
Yong-Ho Kim, Chol-Yi Om, Yong-Su Hwang, Yong-Bom Hong   +3 more
doaj   +1 more source

Free vibration analysis of elastically connected composite laminated double-plate system with arbitrary boundary conditions by using meshfree method

AIP Advances, 2021
In this paper, the meshfree method is adopted for the first time to study the free vibration of a composite laminated double-plate system (CLDPS). The first order shear deformation theory is used to analyze the free vibration of the CLDPS, and the ...
Kwanghun Kim, Songhun Kwak, Paeksan Jang, Myongkuk Sok, Sunjong Jon, Kumchol Ri   +5 more
doaj   +1 more source

Lung Cancer Death Attributable to Long-Term Ambient Particulate Matter (PM2.5) Exposure in East Asian Countries During 1990–2019

Frontiers in Medicine, 2021
Background: Ambient particulate matter is a public health concern in East Asia as it contributes to a growing number of all-cause and cancer deaths. This study aimed to estimate lung cancer death attributable to ambient particulate matter (PM) < 2.5 ...
Xiaoxue Liu, Sumaira Mubarik, Fang Wang, Yong Yu, Yafeng Wang, Fang Shi, Haoyu Wen, Chuanhua Yu, Chuanhua Yu   +8 more
doaj   +1 more source

Constructive Existence of (1,1)-Solutions to Two-Point Value Problems for Fuzzy Linear Multiterm Fractional Differential Equations

Abstract and Applied Analysis, 2019
In this paper, we consider the following two-point boundary value problems of fuzzy linear fractional differential equations: (Dc1,1αy)(t)⊕b(t)⊗(Dc1,1βy)(t)⊕c(t)⊗y(t)=f(t), t∈(0,1), y(0)=y0 and y(1)=y1, where b,c∈C(I), b(t),c(t)≥0, y,f∈C(I,RF), I=[0,1 ...
HuiChol Choi, SungHyok Kwon, Kinam Sin, Sunae Pak, Sungryol So   +4 more
doaj   +1 more source