Traditional inter-event time definition (IETD) estimate methodologies generally take into account only rainfall characteristics and not drainage basin characteristics. Therefore, they may succeed in providing an appropriate value of IETD for any sort application to the design urban system devices. To overcome this limitation, study presents a method determination that considers The suggested is period from end event direct runoff. can identify independent events are suitable statistical...

This paper deals with optimum design criteria for maximum torque density and efficiency of a single phase line-start permanent-magnet motor (LSPMM) using response surface methodology (RSM) finite element method (FEM). The focus this is to find solution through the comparison resulting from rotor shape variations. Then, central composite (CCD) mixed resolution introduced, parameters meeting required are determined by characteristic map obtained d-q axis equivalent circuit analysis. Then...

This paper deals with optimum design criteria for maximum torque density and minimum ripple of synchronous reluctance motor (SynRM) according to the rated wattage using response surface methodology (RSM). The RSM has been achieved use experimental method in combination finite element well adapted make analytical model a complex problem considering lot interaction variables. proposed procedure allows define rotor shape starting from an existing or preliminary design.

This paper proposes a vector control method for the synchronous reluctance motor (SynRM) which selects appropriate stator d,q-axis current component combination (flux current, torque current) so that influence of iron core loss on developed can be minimized in control. A coupled finite element analysis and Preisach's modeling SynRM is presented to verify propriety proposed characteristics performed under effects saturation loss. Both computer simulation experimental results show method.

This paper deals with optimum design criteria for maximum torque density and minimum ripple of synchronous reluctance motor (SynRM) according to the rated wattage using response surface methodology (RSM). The RSM has been achieved use experimental method in combination finite element well adapted make analytical model a complex problem considering lot interaction variables. proposed procedure allows define rotor shape starting from an existing or preliminary design.

Chrysanthemum is one of the most popular and economically important ornamental plants due to its huge diversity in growing habits, wide range colors, different patterns flower. In present study, we conducted karyotype analysis four naturally occurring genotypes boreale. Karyotype studies based on fluorescence situ hybridization (FISH) using 5S 45S rDNAs. Four chrysanthemum genoteyps showed an aneuploid chromosome number 2n=18+2 (111016 111021) or a diploid 2n=18 (121001 121002). All had same...

This paper deals with finding the optimal ratio of height and length single-sided linear induction motors using finite-element method (FEM) for magnetic-field analysis coupled design methodology. For effective analysis, FEM is conducted in time harmonic field, which provides steady-state performance fundamental components voltage current. The to providing required output power obtained by response surface methodology values are presented variation power. When small, high as increases, shows...

Benthic diatoms are ubiquitous in tidal flats and play major roles maintaining coastal ecosystems. Spatio-temporal variations diatom diversity have not been well-studied, mainly because of difficulties morphological identification the lack appropriate genetic tools. To overcome these problems, we used gene encoding ribulose bisphosphate carboxylase large-subunit (rbcL) as a molecular marker, sequenced genes with aid MiSeq platform. In this manner, explored benthic Guenso Bay on west coast...

This study investigates the hysteresis phenomena of permanent magnet assisted synchronous reluctance motor (PMASynRM) using coupled FEM and Preisach modelling. Preisach's model, which allows accurate prediction hysteresis, is adopted in this procedure to provide a nonlinear solution. The computer simulation experimental results for i-/spl lambda/ loci show propriety proposed method.

This study investigates the dynamic characteristics of synchronous reluctance motor (SynRM), with segmental rotor structure, using finite element method in which moving mesh technique is considered. The focus this paper general property and speed response characteristic SynRM under saturation iron loss. Extensive experimental work has been conducted to verify accuracy proposed analysis method.

This paper deals with an automatic rotor optimum design strategy based on torque/volume for a synchronous reluctance motor (SynRM). The focus of this is the relative to basis each rated watt according diameters SynRM. coupled finite elements analysis and sequential unconstrained minimization technique have been used evaluate solutions. proposed procedure allows us define geometric function diameter starting from existing or preliminary design.

Low-impact development (LID) methods are an important approach to storm-water mitigation. Modeling the effects of these installations using rainfall-runoff simulations can provide useful data for future design and implementation. In this study, we used Storm Water Management Model assess seven types LID (vegetated areas, garden pots, tree filter boxes, permeable pavement, infiltration ditches, rain barrels, blocks) at a South Korean industrial site. Using both short- long-term simulation...

In this paper, an approach to arrive at the optimal design variables maximize torque density of axial multi-layer synchronous reluctance motor that can be used as electric actuator is presented. Considering flux saturation phenomenon core along primary path d-/q-axis magnetic important criterion in designing improve and increase ratio difference between L <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">d</sub>...

Elliptic variational inequalities with multiple bodies in two dimensions are considered. It is assumed that an active set method used to handle the nonlinearity of inequality constraint, which results auxiliary linear problems. For solving such problems we study domain decomposition methods called finite element tearing and interconnecting (FETI-FETI) hybrid this paper. Bodies decomposed into several subdomains both methods. The FETI-FETI combines one-level FETI dual-primal (FETI-DP) We...

This paper deals with optimum design criteria for maximum torque density and minimum ripple of a flux switching motor (FSM) using response surface methodology (RSM) finite element method (FEM). The focus this is to find solution through the comparison according rotor shape variations. Then, new type winding turns armature/field are introduced, numerical analysis experiment conducted confirm appropriate optimized model. proposed procedure allows definition dimensions starting from an existing...

It is necessary to modify the state-of-the-art of vector control theory, because phase asymmetry (static end effect) in linear induction motor (LIM). The dynamic characteristic analysis method controlled LIM using coupled FEM and algorithm taking into account movement proposed. focus this paper relative phenomena static effect due structure. To prove propriety proposed method, digital signal processor (DSP) installed experimental devices are equipped experiment performed.

This paper deals with the characteristics analysis and optimum design of synchronous reluctance motor (SynRM) anisotropy rotor using a Coupled Finite Element Method (FEM) response surface methodology (RSM). The focus this is relative to output power on basis materials SynRM. coupled finite elements (FEA) Preisach model have been used evaluate nonlinear solutions. Comparisons are given normal those SynRM (ANISO-SynRM), respectively. feasibility RSM FEM in practical engineering problem...

오늘날 환경오염을 방지하기 위하여 화석연료를 사용하지 않는 크루저 보드의 1인승 이동수단이 주목을 받고 있다. 본 연구에서는 안전한 설계를 구조 해석을 수행함으로서 형상에 따른 특성들을 분석하고자 한다. 기존의 보드 모델과 새로운 형상의 모델 총 두 가지 모델들을 설계하고, 유한요소해석 프로그램을 이용하여 수행하여 변형량, 응력 및 피로 수명에 의한 내구성을 연구하였다. 연구 결과, 모델이 최대 변형량은 0.000971mm, 응력은 0.936MPa, 수명은 <TEX>$1827.7Cycle{\sim}1.887{\times}105Cycle$</TEX>로서 모델에서의 모든 결과 값들이 모델보다 더 양호하게 되어 사용하기에 적합한 것으로 나타났다. 결과는 안전하고 내구성이 있는 설계에 기여할 수 있으며, 디자인 면에서 융합 기술로의 접목도 가능하여 미적인 감각을 나타낼 In order to prevent the environmental pollution nowadays, mobile...

This paper presents an optimization procedure using response surface methodology (RSM) to determine design parameters for reducing torque ripple. The RSM has been achieved use the experimental method in combination with finite element and well adapted make analytical model a complex problem considering lot of interaction variables.

최근 기후변화 및 도시화로 인한 도시유역의 침수위험은 증가하고 있으며, 이를 저감하기 위한 방법으로 도시유역 내 지하저류조 설치가 논의되고 있다. 이에 따라 도시유역에서의 지하저류조와 관련된 연구들이 진행되고 있으나, 저류조 용량 위치의 문제를 종합적으로 고려하는 연구는 아직 미진한 상태이다. 따라서 본 연구에서는 설치 시 시설 가능 개수에 따른 도시지하저류조 최적위치 규모 선정을 동시에 고려할 수 있는 최적화 모형을 개발하였다. 기법으로는 화음탐색법(Harmony Search, HS)을 이용하였으며, 수리 수문 해석을 위하여 대표적 도시유출 해석 모형인 SWMM(Storm Water Management Model) 5.0 DLL을 연계 구성하였다. 또한 SWMM의 매개변수중 관거의 조도계수 맨홀의 손실계수에 월류 발생 양상에 대한 민감도를 분석하였으며, 지하저류조의 선정에 고려하였다. 개발된 선정 모형은 부산 BEXCO 유역에 모의 적용되었으며, 개수를 변화시켜 가면서...