• 제어로봇시스템학회:학술대회논문집
• /
• 2001.10a
• /
• pp.115.4-115
• /
• 2001

This paper deals with recognizing ten korean voiced vowels using Self Organizing Map. SOM is a good classifier. The output layer is composed of two dimensions. The input vector is the frequency values having the characteristic of voiced vowels. The short time frequency transform is used getting input vector. The final neural networks is attached SOM output layer.

• Journal of The Korean Astronomical Society
• /
• v.1 no.1
• /
• pp.1-18
• /
• 1968

The photometric orbital elements of an Algol-type eclipsing variable, DI Pegasi, are derived by means of Fourier transforms from two-color photoelectric observations. The system shows a long term variation of its orbital period, which is interpreted as due to a continuing mass loss mechanism from the secondary component. Physical dimensions and a model of the system are also suggested here.

• Journal of The Korean Astronomical Society
• /
• v.18 no.2
• /
• pp.100-110
• /
• 1985

The HI features associated with HII regions and radio sources in the galactic-plane are searched in the Maryland-Green Bank Galactic 21-cm Line Survey. Among the twenty-eight such objects, twenty-five show HI depression features, two no feature, and an emission feature with excess HI brightness temperature. Most of these feature are surrounded by strong HI emissions. The depth of the HI depression is proportional to the radio continuum brightness temperature. The angular dimensions of the HI feature and radio source are comparable. The small HI depressions shown at the positions of HII region located in the outer solar circle are considered to be HI self-absorption features of very cold HI gas.

• Journal of the Korean housing association
• /
• v.8 no.3
• /
• pp.99-109
• /
• 1997

The purpose of this study was to formulate the model which focus on the quality of housing, and to evaluate the residential environmental qualities according to the model. SPSS PC$^{＋}$ for window (version 6.1) were used for these purposes. The major findings are as follows: 1) The level of housing quality were divided into two dimensions: amenity and convenience. 2) Good towns of amenity among the new towns were found Bundang, Ilsan, Gwucheon, Mokdong and good towns of convenience were found Yeongtong, Joongdong, Pyeongchon.

• Communications for Statistical Applications and Methods
• /
• v.7 no.1
• /
• pp.1-12
• /
• 2000

We explore the structure and usefulness of CERES plot as a basic tool for dealing with curvature as a function of the new predictor in nonlinear regression. If a predictor has a nonlinear effect and there are nonlinear relationships among the predictors the partial residual plot and augmented partial residual plot are not able to display the correct functional form of the predictor. Unlike these plots the CERES plot can show the correct from. In situations where nonlinearity exists in two predictors we extend the idea of CERES plot to three dimensions, This is illustrated by simulated data.

• International Journal of High-Rise Buildings
• /
• v.9 no.1
• /
• pp.81-85
• /
• 2020

Currently, urban mobility is rather two-dimensional: Connections between transportation solutions like elevators, escalators, moving walks, and metro stations are static. In the future, urban mobility will require a holistic view: Seamless transportation, enabled by innovative IoT technology, is a necessity. A dialogue between the city, its buildings and transportation systems, considering the specific needs and preferences of each and every citizen, must be adopted. Travelling through the city will become a lot more individualized, interactive and customized to specific requirements.

• Proceedings of the Korean Powder Metallurgy Institute Conference
• /
• 2006.09a
• /
• pp.407-408
• /
• 2006

Dimensional precision is a critical parameter in net shape processing of ferrous PM components. Sinter-hardening alloys undergo a transformation from austenite to martensite. Martensite formation expands the sintered compact, while tempering hardened steels results in shrinkage. In addition, martensitic regions with high Cu and C contents may contain large amounts of retained austenite. The presence of martensite and retained austenite, in addition to the tempering step, all play a role in the final dimensions of a component. This paper investigates the dimensional and microstructural changes to two sinter-hardening grades through different post-sintering thermal treatments.

• Structural Engineering and Mechanics
• /
• v.55 no.5
• /
• pp.1037-1053
• /
• 2015

This paper presents finite element (FE) based pushover analysis of a reinforced concrete structure with a two-leaf cavity wall (TLCW) to estimate the performance level of this structure. In addition to this, an unreinforced masonry (URM) model was selected for comparison. Simulations and analyses of these structures were performed using the DIANA FE program. The mentioned structures were selected as two storeys and two bays. The dimensions of the structures were scaled 1:1.5 according to the Cauchy Froude similitude law. A shake table experiment was implemented on the reinforced concrete structure with the two-leaf cavity wall (TLCW) at the National Civil Engineering Laboratory (LNEC) in Lisbon, Portugal. The model that simulates URM was not experimentally studied. This structure was modelled in the same manner as the TLCW. The purpose of this virtual model is to compare the respective performances. Two nonlinear analyses were performed and compared with the experimental test results. These analyses were carried out in two phases. The research addresses first the analysis of a structure with only reinforced concrete elements, and secondly the analysis of the same structure with reinforced concrete elements and infill walls. Both researches consider static loading and pushover analysis. The experimental pushover curve was plotted by the envelope of the experimental curve obtained on the basis of the shake table records. Crack patterns, failure modes and performance curves were plotted for both models. Finally, results were evaluated on the basis of the current regulation ASCE/SEI 41-06.

• Journal of Korean Academy of Nursing
• /
• v.39 no.6
• /
• pp.788-795
• /
• 2009

Purpose: The purpose of this study was to define and clarify the concept of 'resilience' in patients with cardiovascular diseases. Methods: A hybrid model was used to develop the concept of resilience. The model included a field study carried out in Cheonan, Korea. The participants in this study were 9 patients with cardiovascular diseases who underwent a percutaneous coronary intervention. Results: The concept of resilience was found to be a complex phenomenon having meanings in two dimensions: the personal-dispositional and interpersonal dimensions. Four attributes and seven indicators were defined. Conclusion: A resilient person was defined as one who has a positive attitude toward restoration, the power to reconstruct and control his/her disease (personal dimension), and support from a supportive system with supportive persons (interpersonal dimension). In the clinical setting, resilience plays an important role in managing the care plans of cardiovascular patients. Therefore, nurses who work closely with patients suffering from cardiovascular diseases should be aware of the attributes and indicators of resilience to enhance the resilience of their patients.

• Proceedings of the Acoustical Society of Korea Conference
• /
• autumn
• /
• pp.275-280
• /
• 1999

Deep-water sonar transducers of FFR (Free Flooded Ring) type have been designed using a coupled FE-BEM. The proposed sonar transducers are composed of piezoelectric ceramic tubes and structural steel materials for simple fabrication. In order to have an omnidirectional beam pattern around 30 kHz, a conic steel is placed below a piezoelectric tube or a steel disc is placed between two piezoelectric tubes. The dynamics of the sonar transducer is modelled in three dimensions and is analyzed with external electrical excitation conditions. Various results are available such as directivity patterns and transmitting voltage responses. The most optimal structure and dimensions of the steel material were calculated, so that the beam patterns of the sonar transducers had +/- 3 dB omnidirectivity at 30 kHz.