• Title/Summary/Keyword: Closed pattern

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A Study on the Current Situation of Vacant Primary and Middle Schools in China (중국 초·중학교의 폐교현황에 관한 연구)

  • Mou, Biao;Lee, Jong-Kuk
    • The Journal of Sustainable Design and Educational Environment Research
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    • v.12 no.3
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    • pp.1-10
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    • 2013
  • Due to the population decrease and urbanization process, a new round of rural primary and middle school pattern adjustment has been implemented since 2000. When the teaching quality is improved, a series of problems also occur, including the security of students, increasing burden on farmers, especially, abundant vacant schools have been produced due to the integration of schools. These schools have a great significance for the developing China. However, due to the problems in land ownership and property right of schools, the re-application rate of these vacant schools is quite low, and then how to improve the usage rate of vacant schools by combining with the new rural construction and urbanization has been the significant problem in the current study. In this paper, the causes, processes, results achieved and existing problems of primary and middle schools, as well as the amount of vacant schools have been explored in details, and then the current situation and existing problems have been discussed, hoping to provide certain reference for the government and researchers.

Vocabulary in Korean-Speaking Toddlers : A Preliminary Analysis of Word Class, Composition, Gender, and Individual Variation (걸음마기 한국아동의 어휘발달 : 단어유목, 어휘구성, 성 차 및 개인차에 관한 기초분석)

  • Bornstein, Marc H.;Park, Sung-Yun;Cote, Linda R.
    • Korean Journal of Child Studies
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    • v.25 no.2
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    • pp.19-39
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    • 2004
  • Mothers of 58 20-month-olds in Seoul, the Republic of Korea, completed vocabulary checklists for their children. When vocabulary level was taken into account, children's vocabularies contained relatively greater proportions of nouns than other word classes, and more verbs than adjectives or closed-class words. Correlations among word classes showed that each word class was consistently positively correlated with every other class. Girls' vocabularies showed evidence of being larger than boys. Large individual differences in the sizes of children's vocabularies were found. Factors that influence vocabulary size and can account for gender and individual differences are discussed. Noun prevalence in the vocabularies of children learning to speak Korean, and the merits of several theories that may account for this word-class prevalence pattern, are evaluated.

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A Study into Pattern of Smoking Behaviors of Female Student Smokers (여대생의 흡연 행위에 관한 연구)

  • Kim Kyoung Seon
    • Journal of Korean Public Health Nursing
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    • v.15 no.1
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    • pp.1-12
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    • 2001
  • This study. aimed to categorize attitude of smoking behaviors among female student smokers and to provide useful data for development of anti-smoking programs was conducted from Aug. 22 to Nov. 1. using the Q-method. After reviewing the literature the researcher proceeded to interview 10 female students, then developed a statement form consisting of 40 items, and then 30 female student smokers were sampled. The collected data were coded after having been scaled from 1 to 9 points, and analyzed using the PC QUANL program. Three types were identified; The first type focused on the right of the individual to smoke. the second type of students used smoking as a way to relieve their stress, and the third type of students wanted to use smoking as a tool to relate with their peer group. They smoked in closed areas, i.e. rest rooms. coffee shops - places that are not well ventilated and deep inhalation occurs. most subjects of the study started smocking at early ages(the average age was 17). Smoking at this age is especially harmful. It is suggested that the results of the study may be useful for designing anti-smoking health programs including health promotion.

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A Study on the Characteristics of RTA Furniture and Development of Seminar Table (RTA가구의 특성과 세미나 테이블 개발에 관한 연구)

  • Lee, Nak Hyun;Kim, Mi Sook
    • Journal of the Korea Furniture Society
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    • v.28 no.4
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    • pp.259-267
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    • 2017
  • Furniture should change according to space. Therefore, it is important that the flexibility of the furniture, the functional efficiency, the economical efficiency and the convenience of the furniture of today. These characteristics are also important for seminar tables that are used temporarily by a large number of people. The seminar furniture currently in use has no shielding plate, there are two forms of table and shielding plate folding table. Therefore, in this research, furniture design and product development that can complement the shortcomings of the seminar furniture currently in use were done. Analysis of problems through overseas investigation and domestic market research, design planning and design, and prototyping. We have sought to optimize the volume by applying the characteristics of RTA furniture to develop a lightweight, lightweight, lightweight, easy to install and easy to use shielding plate, and open and closed system. Basically developed two types of shielding board seminar table basic shape and Roll Screen type, we expanded the scope of application such as each color and pattern. In order to reduce the weight, we replaced the parts such as anchor bolts and hinges and the shielding plate with Roll Screen and pursued volume optimization. As a result of this research, it is expected that the system of mechanisms such as packaging standardization and damage prevention for weight reduction and volume optimization will contribute to building competitiveness by domestic office prefabricated furniture industry's original technology.

Analysis of Phenomena and Characteristics of Family Nursing in Korea by ICNP (ICNP를 적용한 한국 가족의 현상 및 특성 분석)

  • Kim, Young-Im;Kim, Hee-Girl;Yun, Soon-Nyung;Park, Jin-Kyung;Jung, Hye-Sun
    • Research in Community and Public Health Nursing
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    • v.13 no.4
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    • pp.608-617
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    • 2002
  • The purpose of this study was to analyze phenomena and characteristics of family nursing in Korea based on the study by Yun et al. (1999) by ICNP. The subjects of this study were 115 reports on family nursing care in Korea National Open University. The results of this study were as follows; 1. In the phenomenon of family nursing, 'Inappropriate family coping' comprised of 17.0% and 'Inadequate care for a sick member' comprised of 16.8%. 2. It was found that 'A few close neighbors was 62.5%, 'Lack of communication between married couple' was 60.0%, 'Neglet of general child rearing' was 40.9%, 'Closed communication pattern of the head of a family' was 36.0%, and 'Inadequate distribution of each family member's role' was 27.2%. 3. 'Lack of family interaction in community' and 'Social isolation' were combined with 'Lack of family interaction in community', and 'Disturbance in family communication' and 'Lack of family intimacy' were combined with 'Disturbance in family communication'. 4. 'Dual-loading with office work and housework', 'Overload of caring one's elders because of the status as a dual-income family' and 'Lack of family support system' were added into 'Inappropriate family coping'.

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A Study on Precise Control of Autonomous Travelling Robot Based on RVR (RVR에 의한 자율주행로봇의 정밀제어에 관한연구)

  • Shim, Byoung-Kyun;Cong, Nguyen Huu;Kim, Jong-Soo;Ha, Eun-Tae
    • Journal of the Korean Society of Industry Convergence
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    • v.17 no.2
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    • pp.42-53
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    • 2014
  • Robust voice recognition (RVR) is essential for a robot to communicate with people. One of the main problems with RVR for robots is that robots inevitably real environment noises. The noise is captured with strong power by the microphones, because the noise sources are closed to the microphones. The signal-to-noise ratio of input voice becomes quite low. However, it is possible to estimate the noise by using information on the robot's own motions and postures, because a type of motion/gesture produces almost the same pattern of noise every time it is performed. In this paper, we propose an RVR system which can robustly recognize voice by adults and children in noisy environments. We evaluate the RVR system in a communication robot placed in a real noisy environment. Voice is captured using a wireless microphone. Navigation Strategy is shown Obstacle detection and local map, Design of Goal-seeking Behavior and Avoidance Behavior, Fuzzy Decision Maker and Lower level controller. The final hypothesis is selected based on posterior probability. We then select the task in the motion task library. In the motion control, we also integrate the obstacle avoidance control using ultrasonic sensors. Those are powerful for detecting obstacle with simple algorithm.

A Study on Primitive Segments Extraction from Printed Korean Characters by means of a Directional Projection (방향 투영에 의한 인쇄체 한글의 기본 선소 추출에 관한 연구)

  • Kim, Sang-Woon;Lee, Ryeong-Rae;Lee, Gyu-Won;Park, Kyu-Tae
    • Proceedings of the KIEE Conference
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    • 1987.07b
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    • pp.1100-1103
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    • 1987
  • In this paper, we report a method for the primitive segments extraction from printed Korean characters without thinning as a preliminary stage to design an efficient recognition system. The primitive segments are defined by fundamental subpatterns which are vertical(I), right sloping(/), left. sloping(\). horizontal(-), and circular segment(o). The circular segment among the five kinds of segment is different from the others in geometrical properties. Therefore, at first, the circular segment is extracted by using the closed circle of the inner boundary and the geometrical characteristics of its outer. Next, linear segments are separated from the character pattern by means of a directional coding method. Finally, primitive segments are extracted from each set of linear segments by using a projection profile which involves the fact whether the segment has branches or not. The experimental results show that this method reduces computation time and storage space in comparision with the existing methods.

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Wind Tunnel Study on Flow Characteristics around KRISO 300K VLCC Double-body Model (KRISO 300K VLCC 이중모형선의 유동특성에 대한 풍동실험 연구)

  • Hak-Rok Kim;Sang-Joon Lee
    • Journal of the Society of Naval Architects of Korea
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    • v.36 no.3
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    • pp.15-21
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    • 1999
  • The flow characteristics around KRISO 300K VLCC double-body model have been experimentally investigated in a closed-type subsonic wind tunnel. The local mean velocity and turbulence statistics including turbulent intensity. Reynolds shear stress and turbulent kinetic energy were measured using a x-type hot-wire probe. The measurements were carried out at several transverse stations of the stern and near wake regions. The surface flow was visualized using on oil-film technique to see the flow pattern qualitatively. The flow in the stern and near wake region revealed complicated three-dimensional flow characteristics. The VLCC model shows a hook-shaped wake structure behind the propeller boss in the main longitudinal vortex region. The thin boundary layer at midship was increased gradually in thickness over the stern and evolved into a full three-dimensional turbulent wake.

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Closure of Patent Ductus Arteriosus in a Maltese Dog Using Amplatz Canine Duct Occluder through Femoral Vein

  • Suh, Sang-Il;Yoon, Won-Kyoung;Kim, Tae-Jun;Choi, Ran;Hyun, Changbaig
    • Journal of Veterinary Clinics
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    • v.33 no.4
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    • pp.221-224
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    • 2016
  • An 8 month-old male Maltese (weighing 2.0 kg) was referred with loud heart murmur at routine physical exam in local animal clinic. Electrocardiogram found left ventricular hypertrophy pattern (4.5 mV R-wave). Diagnostic imaging studies revealed the elongation of left ventricle (LV) with classic triple bumps on the main pulmonary artery, aorta and left atrium on the ventrodorsal view of radiograph. Echocardiography revealed patent ductus arteriosus (PDA) duct and continuous turbulent shunt flow (maximal velocity 4.83 m/s) between the aorta and pulmonary artery with left to right direction. The PDA in this dog was successfully closed through femoral vein (transvenous approach) using a 5 mm Amplatz$^{(R)}$ Canine Duct Occluder. To the best of author's knowledge, this is the first case of PDA occlusion treated with Amplatz Canine Duct Occluder through femoral vein.

Numerical Analysis of Supersonic Axisymmetric Screech Tone Noise Using Optimized High-Order, High-Resolution Compact Scheme (최적회된 고차-고해상도 집적 유한 차분법을 이용한 초음속 제트 스크리치 톤 수치 해석)

  • Lee, In-Cheol;Lee, Duck-Joo
    • The Journal of the Acoustical Society of Korea
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    • v.25 no.1E
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    • pp.32-35
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    • 2006
  • The screech tone of underexpanded jet is numerically calculated without any specific modeling for the screech tone itself. Fourth-order optimized compact scheme and fourth-order Runge-Kutta method are used to solve the 2D axisymmetric Euler equation. Adaptive nonlinear artificial dissipation model and generalized characteristic boundary condition are also used. The screech tone, generated by a closed loop between instability waves and quasi-periodic shock cells at the near field, is reasonably analyzed with present numerical methods for the underexpanded jet having Mach number 1.13. First of all, the centerline mean pressure distribution is calculated and compared with experimental and other numerical results. The instantaneous density contour plot shows Mach waves due to mixing layer convecting supersonically, which propagate downstream. The pressure signal and its Fourier transform at upstream and downstream shows the directivity pattern of screech tone very clearly. Most of all, we can simulate the axisymmetric mode change of screech tone very precisely with present method. It can be concluded that the basic phenomenon of screech tone including the frequency can be calculated by using high-order and high-resolution schemes without any specific numerical modeling for screech tone feedback loop.