• Title/Summary/Keyword: Power Law Form

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Thermal stability analysis of temperature dependent inhomogeneous size-dependent nano-scale beams

  • Bensaid, Ismail;Bekhadda, Ahmed
    • Advances in materials Research
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    • v.7 no.1
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    • pp.1-16
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    • 2018
  • Thermal bifurcation buckling behavior of fully clamped Euler-Bernoulli nanobeam built of a through thickness functionally graded material is explored for the first time in the present paper. The variation of material properties of the FG nanobeam are graded along the thickness by a power-law form. Temperature dependency of the material constituents is also taken into consideration. Eringen's nonlocal elasticity model is employed to define the small-scale effects and long-range connections between the particles. The stability equations of the thermally induced FG nanobeam are derived via the principal of the minimum total potential energy and solved analytically for clamped boundary conditions, which lead for more accurate results. Moreover, the obtained buckling loads of FG nanobeam are validated with those existing works. Parametric studies are performed to examine the influences of various parameters such as power-law exponent, small scale effects and beam thickness on the critical thermal buckling load of the temperature-dependent FG nanobeams.

Output Signal to Noise Ratio and Harmonic Generation of Nth Power Law Nonlinear Devices. (N승 비선형 장치의 출력 SN비 및 고조파 발생)

  • 김재공;고병준
    • Journal of the Korean Institute of Telematics and Electronics
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    • v.9 no.5
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    • pp.12-18
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    • 1972
  • The relation between output SNR and mth harmonic generation is determined for nonlinear system of zero memory type, half wave and the nth power law devices with narrow band form of the unmodulated sinusoidal wave plus zero mean and stationary gaussian noise input. It is found that the optimum generation condition for harmonic component at a small input of SNR is m and n equal 2, while for large input SNR is always n equals 2.

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Free Vibration Analysis of a Rotating Cantilever Beam Made-up of Functionally Graded Materials (경사기능재료를 사용한 회전하는 외팔보의 진동해석)

  • Lee, Ki Bok;Yoo, Hong Hee
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.23 no.8
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    • pp.742-751
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    • 2013
  • The vibration analysis of a rotating cantilever beam made-up of functionally graded materials is presented based on Timoshenko beam theory. The material properties of the beams are assumed to be varied through the thickness direction following a simple power-law form. The frequency equations, which are coupled through gyroscopic coupling terms, are calculated using hybrid deformation variable modeling along with the Rayleigh-Ritz assumed mode methods. In this study, resulting system of ordinary differential equations shows the effects of power-law exponent, angular speed, length to height ratio and Young's modulus ratio. It is believed that the results will be a reference with which other researchers and commercial FE analysis program, ANSYS can compare their results.

Dynamic response of functionally graded plates with a porous middle layer under time-dependent load

  • Dergachova, Nadiia V.;Zou, Guangping
    • Computers and Concrete
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    • v.27 no.3
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    • pp.269-282
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    • 2021
  • A dynamic analytical solution for a simply supported, rectangular functionally graded plate with a porous middle layer under time-dependent load based on a refined third-order shear deformation theory with a cubic variation of in-plane displacements according to the thickness and linear/quadratic transverse displacement is presented. The solution achieved in the trigonometric series form and rests on the Green's function method. Two porosity types and their influence on material properties, and mechanical behavior are considered. The network of pores is assumed to be empty or filled with low-pressure air, and the material properties are calculated using the power-law distribution idealization. Numerical calculations have been carried out to demonstrate the accuracy of the kinematic model for the dynamic problem, the effect of porosity, thickness of porous layers, power-law index, and type of loading on the dynamic response of an imperfect functionally graded material plate.

Contextual Factors in Conflicts in Multicultural Mother and Daughter In-law Relationships: A Qualitative Approach with Dyadic In-depth Interviews (결혼이민자가정 고부갈등의 맥락적 요인에 대한 탐색적 연구: 시어머니와 며느리의 인터뷰를 중심으로)

  • Kang, Hyekyung;Auh, Seongyeon
    • Human Ecology Research
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    • v.52 no.4
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    • pp.355-369
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    • 2014
  • The in-law relationship traditionally plays a major role in Korean marriages and families because parents-in-law prefer to stay with their son under the same roof. The recent spike in the number of intercultural matches in South Korea may be provoking changes in the traditional family experience. The object of this qualitative study was to explore the contextual factors causing conflicts between mothers-in-law and their daughters-in-law in multicultural families. Six mother and daughter in-law dyads from rural areas of South Korea were recruited and interviewed. We found that the mothers-in-law and daughters-in-law had had different motives for the marriage at first. Five major themes emerged from the analysis of the dyadic interviews: the conflicts of the participants were embedded in the alternative family formation, in financial strains and the power structure, barriers in communication, cultural insensitivity and conflicts between value systems, as well as in role conflicts due to differing role expectations and hegemony. In conclusion, the authors of this study suggest that increasing cultural sensitivity and communication skills in immigrant daughter-in-law an Korean mother-in-law relationships will be crucial for a healthy in-law relationship. The need for the availability of Multicultural Family Centers' services in the community was highlighted. In order for mothers-in-law and daughters-in-law to form positive relationships, it is important to facilitate a variety of easily accessible educational programs in the community focusing on fostering the mother-in-law's understanding of the daughter-in-law's perspective.

A Study on the Buyer's Specificity Requirement of the nature of the lack of the Conformity (매수인의 부적합 통지 내용의 상세정도에 관한 연구)

  • Heo, Kwang-Uk
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.39
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    • pp.27-55
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    • 2008
  • The concept of non-conformity is stipulated at Art. 35, CISG. According to the Art. 35, there is no directly stipulated concept of non-conformity. But Art. 35 said that the Seller must deliver goods which are of the quantity, quality and description required by the contract and which are contained or packaged in the manner required by the contract. Accordingly, the concept of non-conformity contains the conformity of quality, quantity, description, delivery of different goods and documents. Art. 39 does not specify the form of notice required. So parties can require a particular form by agreement. If there is no agreed form of notice, buyer' s notice must be sent by means appropriate in the circumstances. And Art. 39 states that the required notice of lack of conformity must be given to the seller. Notice of defects conveyed by the buyer to an independent third party is not found to have been given by means appropriate in the circumstances. And Art. 39 is subject to the parties' power under Art. 6 to derogate from or vary the effect of any provision of the Convention. When determining which requirement must be satisfied by the buyer is specifying the nature of any lack of conformity, a mixed objective-subjective standard should be applied, which has regard to the respective commercial situation of the buyer and the seller, to any cultural differences, but above all, to the nature of the goods. Also to determine the specificity requirement is to satisfy the purpose of notice of lack of conformity.

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A Study on Recalculating Nuclear Energy Generation Cost Considering Several External Costs

  • Kim, Hyun-Jung;Yee, Eric
    • Journal of Power System Engineering
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    • v.22 no.6
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    • pp.5-10
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    • 2018
  • Nuclear energy issues such as safety and social acceptance can not only influence the production costs of generating nuclear power, but also the external costs that are not reflected in market prices. Consequently, the social issues affiliated with nuclear power, beyond a severe accident, require some form of financial expense. The external social issues considered here are accident risk and realization, regulatory costs, and nuclear energy policy costs. Through several calculations and analyses of these external costs for nuclear power generation, it is concluded that these costs range from 7 to 27 \/kWh. Considering external costs are required for making energy plans, it could have an influence on generation costs.

An analytical approach for buckling of functionally graded plates

  • Daouadji, Tahar Hassaine;Adim, Belkacem
    • Advances in materials Research
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    • v.5 no.3
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    • pp.141-169
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    • 2016
  • In this paper, an efficient and simple refined theory is presented for buckling analysis of functionally graded plates. The theory, which has strong similarity with classical plate theory in many aspects, accounts for a quadratic variation of the transverse shear strains across the thickness and satisfies the zero traction boundary conditions on the top and bottom surfaces of the plate without using shear correction factors. The mechanical properties of functionally graded material are assumed to vary according to a power law distribution of the volume fraction of the constituents. Governing equations are derived from the principle of minimum total potential energy. The closed-form solutions of rectangular plates are obtained. Comparison studies are performed to verify the validity of present results. The effects of loading conditions and variations of power of functionally graded material, modulus ratio, aspect ratio, and thickness ratio on the critical buckling load of functionally graded plates are investigated and discussed.

United Arab Emirates' Soft Power Approaches towards Indonesia (2015-2022)

  • Muhammad Zulfikar Rakhmat;Yeta Purnama;Mohamed Shaheem Kizhakke Purayil
    • SUVANNABHUMI
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    • v.16 no.1
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    • pp.271-301
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    • 2024
  • Diplomatic relations between the United Arab Emirates and Indonesia have been going on for almost five decades. However, the cooperation between the two countries was still very limited at the beginning of diplomatic relations. As time went by, this cooperation began to expand, especially after Jokowi's visit to the United Arab Emirates in 2015. After this visit, the United Arab Emirates also showed increased interest in Indonesia and started to aggressively exercise soft power in Indonesia. Agreement after agreement have been signed, not only in the economic, political, and security sectors, but also in other areas. This phenomenon of increasing cooperation is one form of success in the soft power exercised by the United Arab Emirates towards Indonesia. Therefore, this research will look at the United Arab Emirates' soft power strategy towards Indonesia from 2015-2022. The concept developed by Joshua Kurlantzick is used to analyze using four important indicators that include educational cooperation, religious exchanges, humanitarian assistance, as well as cultural exchanges.

The Revision Trend of UNCITRAL Model Law on International Commercial Arbitration (국제상사중재에 관한 UNCITRAL 모델법의 개정동향)

  • Lee, Kang-Bin
    • Journal of Arbitration Studies
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    • v.16 no.3
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    • pp.53-89
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    • 2006
  • At its thirty-second session(Vienna, 17 May-4 June 1999), the UNCITRAL decided that the priority items for the Working Group(Arbitration and Conciliation) should include enforceability of interim measures and the requirement of written (on for the arbitration agreement. The Working Group, at its forty-third session(Vienna, 3-7 October 2005), it had undertaken a detailed review of the text of the revised article 17 of UNCTTRAL Model Law on International Commercial Arbitration, and it had resumed discussions on a draft model legislative provision revising article 7, paragraph (2) of UNCITRAL Model Law. The purpose of this paper is to make research on the contents and issues of the draft legislative provisions on interim measures and preliminary orders, and on the form of arbitration agreement which the Working Group discussed and adopted at its forth-fourth session(New York, 23-27 January 2006). The draft legislative provisions on interim measures and preliminary orders are composed of the following provisions : Article 17-power of arbitral tribunal to order interim measures; article 17 bis-conditions for granting interim measures; article 17 ter-applications for preliminary orders and conditions for granting preliminary orders; article 17 quater-specific regime for preliminary orders; article 17 quinquies- modification, suspension, termination; article 17 sexies-provision of security; article 17 septies-disclosure; article 17 octies-costs and damages; article 17 novies recognition and enforcements; article 17 decies-grounds for refusing recognition or enforcement; article 17 undecies-court-ordered interim measures. There are the following issues in the draft legislative provisions on interim measures and preliminary orders : form of issuance of an interim measures in article 17(2); conditions for granting interim measures in article 17 bis; purpose, function and legal regime of preliminary orders in article 17 ter; obligation of arbitral tribunal to give notice, and non-enforceability of preliminary orders in article 17 quater; burden of proof, interplay between article 17 decies and article 34, and decision on the recognition and enforcement of the interim measures in article 17 decies; placement of article 17 undecies; amendment of scope exception of application in article 1(2). The draft legislative provisions on the form of arbitration agreement are composed of the following provisions : article 7(1) definition of arbitration agreement; article 7(2) arbitration agreement in writing; article 7(3) arbitration agreement if its terms(content) are (is) recorded in any form; article 7(4) arbitration agreement by an electronic communication; article 7(5) arbitration agreement in an exchange of statements of claim and defence; article 7(6) reference to any document containing an arbitration clause. There are the following issues in the draft legislative provisions on the form of arbitration agreement : arbitration agreement in writing in article 7(2); terms or contents of arbitration agreement in article 7(3); arbitration agreement by electronic communication in article 7(4); existence of arbitration agreement in article 7(5); reference to any document containing an arbitration clause in article 7(6); the alternative proposal on article 7; amendment to article 35(2).

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