• Title/Summary/Keyword: Inner problems

Search Result 404, Processing Time 0.03 seconds

THE METHOD OF ASYMPTOTIC INNER BOUNDARY CONDITION FOR SINGULAR PERTURBATION PROBLEMS

  • Andargie, Awoke;Reddy, Y.N.
    • Journal of applied mathematics & informatics
    • /
    • v.29 no.3_4
    • /
    • pp.937-948
    • /
    • 2011
  • The method of Asymptotic Inner Boundary Condition for Singularly Perturbed Two-Point Boundary value Problems is presented. By using a terminal point, the original second order problem is divided in to two problems namely inner region and outer region problems. The original problem is replaced by an asymptotically equivalent first order problem and using the stretching transformation, the asymptotic inner condition in implicit form at the terminal point is determined from the reduced equation of the original second order problem. The modified inner region problem, using the transformation with implicit boundary conditions is solved and produces a condition for the outer region problem. We used Chawla's fourth order method to solve both the inner and outer region problems. The proposed method is iterative on the terminal point. Some numerical examples are solved to demonstrate the applicability of the method.

An Analysis of Geometrical Differentiated Teaching and Learning Materials Using Inner Structure of Mathematics Problems (수학 문제의 내적구조를 활용한 기하 영역의 수준별 교수-학습 자료의 분석 연구)

  • Han, In-Ki
    • Communications of Mathematical Education
    • /
    • v.23 no.2
    • /
    • pp.175-196
    • /
    • 2009
  • In this paper we analyze Ziv's geometrical differentiated teaching and learning materials using inner structure of mathematics problems. In order to analyze inner structure of mathematics problems we in detail describe problem solving process, and extract main frame from problem solving process. We represent inner structure of mathematics problems as tree including induced relations. As a result, we characterize low-level problems and middle-level problems, and find some differences between low-level problems and middle-level problems.

  • PDF

A Study on Planning Guideline of Complex Housing in the Residence Inner Area - Case Study of Inner Area in Iksan City - (도심주거지의 주상복합주택 계획지침에 관한 연구 - 익산시 구도심을 사례로 -)

  • Kim, Young-Seok;Park, Pyung-Youl
    • Proceeding of Spring/Autumn Annual Conference of KHA
    • /
    • 2003.11a
    • /
    • pp.173-179
    • /
    • 2003
  • This study analyzes the problems, which the residential inner area has, and proposes systematic and gradual progressing improvement plan for the residential environment in the inner area. Also, planning instruction is proposed through the case study of parcel·jointed complex housing. This study can be concluded as below: (1) Improvement plans sub-divided into promoting districts and inducing districts of the residential inner area are proposed. (2) Necessity for construction of streets is proposed in order to compensate existing problems in sites. (3) Necessity of complex housings is proposed fur roadsides of household unit or small-sized annexation of parcel. (4) Collecting design examples and existing literatures, the planning guideline for jointed parcel complex housing is proposed based on the established relation with a whole surface of streets, formation and distribution of purposes and increased role of exterior space.

  • PDF

ITERATING A SYSTEM OF SET-VALUED VARIATIONAL INCLUSION PROBLEMS IN SEMI-INNER PRODUCT SPACES

  • Shafi, Sumeera
    • The Pure and Applied Mathematics
    • /
    • v.29 no.4
    • /
    • pp.255-275
    • /
    • 2022
  • In this paper, we introduce a new system of set-valued variational inclusion problems in semi-inner product spaces. We use resolvent operator technique to propose an iterative algorithm for computing the approximate solution of the system of set-valued variational inclusion problems. The results presented in this paper generalize, improve and unify many previously known results in the literature.

A Dynamic Signature Declustering Method using Signature Difference (요약 차이를 이용한 요약화일 동적 분산 기법)

  • Kang, Hyung-Il;Kang, Seung-Heon;Yoo, Jae-Soo;Im, Byoung-Mo
    • Journal of KIISE:Databases
    • /
    • v.27 no.1
    • /
    • pp.79-89
    • /
    • 2000
  • For processing signature file in parallel, an effective signature file declustering method is needed. The Linear Code Decomposition Method(LCDM) used for the Hamming Filter may give a good performance in some cases, but due to its static property, it fails to evenly decluster signature file when signature are skewed. In addition, it has other problems such as limited scalability and non-determinism. In this paper we propose a new signature file declustering method, called Inner-product method, which overcomes those problems in the LCDM. The Inner-product method declusters signature file dynamically based on the signature difference which is computed by using signature inner product. we show through the simulation experiment that the Inner-product outperforms the LCDM under various data workloads.

  • PDF

Analysis of Thermal Distribution inside LCD Monitor by Development of Prediction Formula for Inner Temperature (내부 온도 추정식 개발에 의한 LCD 모니터 내부의 열분포 분석)

  • Oh, S.J.;Ko, H.S.;Chung, D.H.
    • 유체기계공업학회:학술대회논문집
    • /
    • 2006.08a
    • /
    • pp.487-488
    • /
    • 2006
  • In these days, demand of a LCD monitor is remarkably increasing with development of the LCD technology. However, there are thermal problems for improvement of efficiency for the LCD monitor. Thus, this research analyzed thermal problems such as convection and conduction heat transfer characteristics in the LCD monitor using an infrared (IR) camera. Also, the results of the outer side of the front LCD panel using the IR camera have been compared with the results of the inner side of the front panel using T-type thermocouples. The equations have been derived for the temperature distribution of the inner side of the front LCD panel by a multiple regression method including variables for ambient temperature, humidity and temperature differences between the front and back panels of the LCD monitor.

  • PDF

competition strategies for traditional market -focus on strength strategies of inner core competency- (재래시장 경쟁력 방안 -내부 핵심능력 강화방안을 중심으로-)

  • Lee, Jang-Whan
    • Journal of Global Scholars of Marketing Science
    • /
    • v.7
    • /
    • pp.55-69
    • /
    • 2001
  • This article focuses on subject of the present question to traditional market. These days traditional markets have systemic problems due to deterioration of the outer market circumstance and the inner defect and the inner frailty. In this situation, from the SangNam market case analysis, was traced the alternative activation strategies. Issued the 6 inner competency competition strategies for traditional market and issued 7 functional frame for organization system construction. Struggle strategies is built up of the inner organization solidarity and effective management system. So as to build struggle strategies, suggested and issued the 4 phase organization frame to strength stage of traditional market organization operating.

  • PDF

A study on the present condition and development direction of China's Agricultural Tourism - Centered on Takgeuktak County of Inner Mongolia Autonomous Region in Particular - (중국(中國) 관광농업(觀光農業)의 현황(現況) 및 발전(發展) 방향(方向) - 내몽고(內蒙古) 자치구(自治區) 탁극탁현(托克托縣)을 중심(中心)으로 -)

  • Park, Jae-Chul;Xu, Ying-Mei;Jung, Kyoung-Sook
    • Journal of Korean Society of Rural Planning
    • /
    • v.19 no.4
    • /
    • pp.213-226
    • /
    • 2013
  • Agricultural tourism is a new kind of industry, which combined agriculture with tourism. It not only has the productive function, but also has the function of improving the quality of ecological environment and supplying people with sightseeing, leisure, vacation. Agricultural tourism is a new kind of industry from the amalgamation of agriculture and tourism: it is based on farm work, characterized by agricultural management, combines agriculture and tourism, and includes the city as a market-place. It satisfies tourist demand with food, lodging, excursions, shopping and entertainment provided by agricultural places and agricultural products. After combining the substance of this study with the primary sources regarding the development of agricultural tourism, I suggest plans for the development of local agricultural tourism on the basis of sustainable tourism theory in case of the Inner Mongolia region. To conduct research, various data such as literature research and surveys are collected and analyzed. According to the result of the research, the Inner Mongolia region has great-wealthy resources for agricultural tourism. However, they have problems as well such as lack of funds, low infrastructure, low business-mind level, low management-mind, the scarcity of mid-supporting organizations for research and education, low awareness, and low service level of the agricultural tourism. In order to solve these problems, have to strengthen publicity, strengthen the county and city communication, educates continuously profession talented person, establish related laws and regulations, increase the integrity of infrastructure. As a developing industry, agricultural tourism is a new field of study which needs more encouraging research. The agricultural tourism of Inner Mongolia Autonomous Region has only just started development resulting in a limited amount of information available for this study. Future planned work entails a continuous in-depth study of Chinese agricultural tourism, considering Inner Mongolia Autonomous Region in particular.

A Study on the Current State of Korean Military Winter Uniform Tops (한국 군용 방한복 상의에 대한 실태조사)

  • Jeong, Mi-Ae;Nam, Yun-Ja
    • Journal of the Korean Society of Costume
    • /
    • v.66 no.5
    • /
    • pp.66-81
    • /
    • 2016
  • This study is designed to understand the problems of existing Korean male soldiers' winter uniform tops by researching its current state, and contribute to developing uniforms with improved size and motion appropriateness. Military bases were visited to research satisfaction of size and motion appropriateness of the current winter uniform tops. 193 soldiers were surveyed and interviewed, and the shape and fit of the standard sizes of the inner and outer layers of the current winter uniform were analyzed. Findings of this study are as follows. 1) Compared to the new combat uniforms that soldiers were wearing in their appropriate size (of the 44 sizes), there were many cases where the soldiers were not wearing winter uniform inner (of the 8 sizes) or outer (of the 18 sizes) layers in the correct size for their body. 2) A total of 37 combat uniform sizes appropriate for the body shapes were expected to be newly applied, and inside and outside layers of winter tops would be presented as sets of 14 different sizes in step with the new combat uniform sizes, instead of the existing 8 inside layer sizes and 18 outside layer sizes. 3) The inner and outer layer of the existing winter uniform tops had several problems with the shape and fit. First, the inner layer was shorter than the combat uniform. Its shoulder width was wide, but the sleeve length was short creating lack of coverage, and the angle connecting the sleeve and bodice was very small creating a high sleeve cap curve and narrow sleeve width that make motions difficult and cause discomfort. As for the outer layer, the hem moved up when soldiers bent over or adjusted the waist string so the top could not sufficiently cover, the shoulder width was wide and the sleeve length was short, requiring improvements.

Reynolds Number Dependence of Bearing Performance

  • Kim E.
    • 한국전산유체공학회:학술대회논문집
    • /
    • 1997.10a
    • /
    • pp.149-154
    • /
    • 1997
  • Based on the full Navier-Stokes solutions, the thermohydrodynamic performance of a long journal bearing is investigated. A numerical method based on Galerkin's procedure and B-spline test functions has been presented for solving two-dimensional problems involving fluid flow and heat transfer. For numerical stability the artificial compressibility is employed to the conservation of mass. The discretized algebraic equations are solved by Newton's method. Effects of varying the speed of an inner cylinder to load carrying capacity are investigated. The results indicated that the increase of the speed of an inner cylinder has a significant effect on the temperature profile and ultimately on the performance.

  • PDF