http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Relaxed Saint-Venant principle for thermoelastic micropolar diffusion
Marin Marin,Ibrahim Abbas,Rajneesh Kumar 국제구조공학회 2014 Structural Engineering and Mechanics, An Int'l Jou Vol.51 No.4
The main goal of this study is to extend the domain of influence result to cover the micropolar thermoelastic diffusion. So, we prove that for a finite time t>0 the displacement field ui, the microrotation vector φi, the temperature θ and the chemical potential P generate no disturbance outside a bounded domain Bt.
Effect of microtemperatures for micropolar thermoelastic bodies
Marin Marin,Dumitru Baleanu,Sorin Vlase 국제구조공학회 2017 Structural Engineering and Mechanics, An Int'l Jou Vol.61 No.3
In this paper we investigate the theory of micropolar thermoelastic bodies whose micro-particles possess microtemperatures. We transform the mixed initial boundary value problem into a temporally evolutionary equation on a Hilbert space and after that we prove the existence and uniqueness of the solution. We also approach the study of the continuous dependence of solution upon initial data and loads.
함정 전기추진시스템 글로벌 트렌드와 차세대 구축함에 대한 제언
GE 파워컨버젼 사업부, GE Marine(GE Power Conversion, GE Marine) 한국추진공학회 2019 한국추진공학회지 Vol.23 No.4
자동차 및 항공 부문 등에서는 미래에 점점 더 깨끗한 운송 및 원거리 연결을 위한 플랫폼을 도입하거나 평가하기 위해 전동화 즉, 전기추진 또는 하이브리드추진 플랫폼을 적극적으로 고려하고 있다. 그러나 전동화는 조선해양 분야에서는 그리 새로운 것은 아니며 이미 약 100년 전에 처음 선박용으로 전기 및 하이브리드 추진시스템이 소개되었다. GE는 해군 함정의 추진 부문, 특히 전기 및 하이브리드 추진 기술과 관련해서 매우 초기단계 부터 혁신적인 기술을 도입해왔던 선구자로써 각 추진방식에 대한 장/단점, 앞으로의 방향에 대하여 기술하고자 한다.
Native People in Population Censuses: United States (2020) and Canada (2021
Marines Liliana Cordero 한국캐나다학회 2023 Asia-Pacific Journal of Canadian Studies (APJCS) Vol.29 No.1
Since population censuses have been an instrument implemented by governments to know their population and to implement or design public policies, the objective of this text is to discern the differences and similarities in which the governments of Canada and the United States know the native peoples living in their territories. Through an interpretative methodology of content analysis, we analyze the institutional objectives and purposes, the periodicity of each demographic exercise, the margin for ethnic specificities to be expressed in the surveys, the ways of referring to these alterities and the alternative sources of statistical information used. It is concluded that, while the Canadian census advances in the recognition of First Nations, Inuit or Inuk and Métis, the U.S. census reduces the margin for the cultural diversity existing between American Indians and Alaska Natives to be expressed.
A new approach on uniqueness in elastodynamics
Marin, M.,Marinescu, C. Korean Mathematical Society 1998 대한수학회보 Vol.35 No.1
Our study is dedicated to the the proof of uniqueness of solution of initially boundary value problem in Elastodynamics of initially stressed bodies with voids. This proof is obtained without recourse either to an energy conservation law or to any boundedness assumptions on the elastic coefficients.
Evolutionary multi-objective optimization of energy efficiency in electrical discharge machining
Marin Gostimirovic,Vladimir Pucovsky,Milenko Sekulic,Miroslav Radovanovic,Milos Madic 대한기계학회 2018 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.32 No.10
Electrical energy, which in the machining zone is transformed into heat, is of key importance in electrical discharge machining (EDM). Machining performance of EDM is determined by the characteristic of discharge energy. Therefore, an experimental-analytical approach of discharge energy efficiency was analyzed. The main input parameters for controlling the discharge energy are discharge current and discharge duration. The EDM process is monitored considering the two output machining performance, i.e., material removal rate and surface roughness, which are important for increasing productivity and quality. We modeled the energy efficiency of electrical discharge machining by the use of genetic algorithm. With this action an attempt was made to find even more precise dependence of discharge energy parameters with machining performance. Finally, this was followed by optimization of the discharge energy efficiency in EDM process using multi-objective approach. Evolutionary two-objective optimization is leading to the set of optimal solutions for the discharge energy considering the two machining parameters. Using this set of solutions, EDM discharge energy parameters can be selected to achieve high material removal rate with good surface roughness.
A New CAD Environment for Benchmarks of Analog Circuit Sizing Tools and Algorithms
Marin,David,Escudero,Juan,Oliver,Joan,Flandre,Denis 대한전자공학회 1997 ICVC : International Conference on VLSI and CAD Vol.5 No.1
This paper presents a new open environment for the design of analog circuits exchanging information from existing tools. The main features of these tools have been extended in CONNAN by means of a netlist analyzer, the interaction with a commercial CAD tool and a transistor model manager that solves some common problems of sizing tools based on electrical simulators. As an initial test CONNAN is applied to the sizing of analog IC based on electrical simulators and simulated annealing algorithms.