• The Journal of the Korea Contents Association
• /
• v.14 no.8
• /
• pp.74-83
• /
• 2014

This study was conducted for the overall analysis for the interests, generally and uses of SNS (Social Network Service) of the overseas dance arts company. The subjects of this study were total 3,614 of countries, public, private and personal dance arts company in 100 countries on six continents. The selected 627 company which operate at least one SNS, and included them in this study. Then analyzed the SNS utilization six continental areas as per dance gener, types, and dance gener analyzed as per types. Also analyzed the SNS utilization six continental areas, dance gener as per types and obtained the following result First, It appeared that Ballet company of North America continent took advantage of SNS the most. Second, It appeared that Facebook, Twitter of North America was the most frequently used. Third, It appeared that Facebook wsa the most frequently used by traditional dance company. Fourth. Facebook, Twitter, Youtube were the most activity used by Ballet company of North America continent. In conclusion, this study recommends the policy alternatives related to the awareness of digital media, the establishment of the SNS marketing information system.

• The Journal of the Korea Contents Association
• /
• v.20 no.10
• /
• pp.57-75
• /
• 2020

This study identifies the symbolism of cross symptoms of different classes during the modernization process based on the imagery of and , both of which are Korean films made in the same era of the 1960s. The study referred to a number of Korean family movie films in the 1960s, in particular and , which are notably different in ways of expression and in social class of the subject matter, and identifies how the films express the mixed aspects of the cross modernization period. The film uses a grotesque expressionist method to voyeuristically look into a newly emerging middle class family, and the deconstructive aspect of a family unit whose excessive desire leads to its own ruin; thus, the film presents a new perspective into the various social issues that emerge in the near future. In contrast, engages realistic depictions to describe in detail the deep conflict of pain and hope within the hardships of life from the urban poor through a deep family conflict. Ultimately, the two films expose the various social issues through the familiar and the unfamiliar that appear from the mixed aspects of the cross modernization period, in other words, the conflicting images of the traditional and the modern.

• Journal of the Korean Society for information Management
• /
• v.17 no.3
• /
• pp.21-43
• /
• 2000

Not only the infomatmn seeking bellavmr or acadenuc sources by social scientists was analyzed bnt its eiieclive usmg method was also presented in this paper. For thc purpose, the questionnaires were prepared md admmislered lo social sacnilsin who are the profcsso~s oi a large unlverslty m Taegu, Korea. and the survey for tiler academic environment and its sateiaclion, characterislics, inforn~ahon seeking behavior of academic sources, etc. was conducted. Also, iheir research mlercsts and period, informauon s e e h g behav~or and its dfficulties, reineval melhods, and uslng rrequcncies of current issues elc. were analyzed in lliis paper. The major hdings ol the quanm.live pa on the development 01 academic sources for soaal sciencc study and t11e11 uses for education md study m !hi7 study are: (1) Socid sclenhsts preferred acquiring matenal ihrougli internet. CD-ROM, and PC, etc, lo the traditional methods; (2) They spend approxinmtciy 41 days for collecihg matend they wanl. and each of them has petty various period la collect n~atenal and acquiring methods. (standard deviation : about 35 days); (3) The cilalion kequencies of fore~gu material was hi&r than domeslic one; (4) They, social sc~entists, have a pretty hard time to access and use the theses, journal, magazinc. mmol~ches and m s r o f i , CD-ROM malerid etc. technicdly; (5) The group that has morc sat~sIaclion to thesa aud more fiequenl participant ol seminar seek [or more recen issues of a journal lhrough ihc research modcl of melag. (6) The group thal has higher positioned and 1on.a tenure o: office can access lo shorter time at period lhau the one that bas lhe lowcr and the shortcr group. Also, tutule research topic and recommcndations [or a ~ocial saentlst are proposed and suggested when using a social science material

• Journal of Satellite, Information and Communications
• /
• v.2 no.2
• /
• pp.48-52
• /
• 2007

Recently, the research of GPS receiver which uses the Software-Defined Radio(SDR) technique is being actively proceeded instead of traditional hardware-based receiver. The software-based GPS receiver indicates that the signal acquisition and tracking treated by the hardware-based platform are processed as the software technique through a microprocessor. In this paper, GPS software receiver is designed by using SDR technique and then the signal acquisition, tracking, and the navigation message decoding parts are verified through the PC-based simulation. Moreover, the efficient algorithms are developed about the signal acquisition and tracking parts in order to obtain the accurate pseudorange. Finally, the pseudorange is calculated through the relative channel delay received through the different satellite of L1 frequency band. GPS software receiver proposed in this paper will be included in the element of GPS/Galileo complex system of development target and will provide not only the method that verifies the performance for Galileo Sensor Station standard but also usability by providing various debugging environments.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.19 no.4
• /
• pp.578-585
• /
• 2018

This paper proposes a design method for a 3-phase interior permanent magnet synchronous motor (IPMSM) and clamping force control method for an electro-mechanical brake (EMB) using co-simulation for a high-speed train (HST). A traditional pneumatic brake system needs much space for the compressor, brake reservoir, and air pipe. However, an EMB system uses up to 50% less space due to the use of a motor and electric wires for controlling the brake caliper. In addition, it can reduce the latency time for brake control because of the fast response and precise control. A train that has many brakes is advantageous for safety because of the control by sharing the braking force. In this paper, a driving method for a cam-shaft-type EMB is modeled. It is different from the ball-screw-type brakes that are widely used in automobiles. In addition, a co-simulation method is proposed using JMAG and Matlab/Simulink. The IPMSM was designed and analyzed with the JMAG tool, and the control system was simulated using Matlab/Simulink. The effectiveness of the co-simulation results of the mechanical clamping force and braking force was verified by comparison with the clamping force specifications of a HEMU-430X HST.

• Journal of Broadcast Engineering
• /
• v.20 no.5
• /
• pp.706-717
• /
• 2015

The computer generated hologram (CGH) method is the technology which can generate a hologram by using only a personal computer (PC) commonly used. However, the CGH method requires a huge amount of calculational time for the 3D object with a super multi-light source or a high-definition hologram. Hence, some solutions are obviously necessary for reducing the computational complexity of a CGH algorithm or increasing the computing performance of hardware. In this paper, we propose a method which can generate a digital hologram of the 3D object with a super multi-light source using parallel distributed computing. The traditional methods has the limitation of improving CGH performance by using a single PC. However, the proposed method where a server PC efficiently uses the computing power of client PCs can quickly calculate the CGH method for 3D object with super multi-light source. In the experimental result, we verified that the proposed method can generate the digital hologram with 1,5361,536 resolution size of 3D object with 157,771 light source in 121 ms. In addition, in the proposed method, we verify that the proposed method can reduce generation time of a digital hologram in proportion to the number of client PCs.

• Management & Information Systems Review
• /
• v.37 no.2
• /
• pp.209-233
• /
• 2018

This study investigates the question of how political and economic factors may affect the export of renewable energy technologies. The relationships are tested using panel data for 19 OECD member countries over the period 1992-2012. Before establishing the empirical model, the current study checks the characteristics of the panel data, which includes various panel framework analyses, such as tests for the presence of normality, structural breaks, first-order autocorrelation, heteroscedasticity, cross-sectional dependence, panel unit-root. From the panel framework analyses, a dynamic panel model is established to test the relationship between the variables examined in this study. In order to reduce the bias of the estimation of the dynamic panel model and obtain efficient parameters, this study uses the bias-corrected least square dummy variable(LSDVC) estimator to estimate the empirical model. The results of this study show that governmental policies expressed as coercive pressure and market size positively affect the export growth of renewable energy technologies. However, public pressure and traditional energy industry have no significant effects on export performance. Policy implications are presented based on the results of this study.

• Korea journal of population studies
• /
• v.30 no.3
• /
• pp.107-135
• /
• 2007

This paper uses a static Gamma count model, a traditional hurdle model and an endogenous switching Poisson model, respectively for determining married women's completed fertility rates in Korea. This paper analyzes the impact of household income, women's wage and education, and women's job market participation on the number of children of married women above age 40 and on the expected number of children of women aged below 40. The paper shows that a household income significantly increases the number of children for at least women aged above 40, however, this income effect is disappearing for younger generation. The empirical model suggests that women having a job tend to have fewer children for a group 39 years old and below and find that there is an endogeneity problem between child birth and labor force participation, too. The education level of married women gives a positive effect for giving a birth, itself, while it gives a negative impact on the number of children. Based on the empirical results, it concludes that Becker's Quantity-Quality theory works for Korea, too.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.18 no.10
• /
• pp.785-793
• /
• 2017

The guidelines for the district unit planning(DUP) of detached houses in the area of Misagangbyeon-City (MISA) do not consider the characteristics of the region. Therefore, this study was conducted to analyze the relationship between the blocks and parking lots of the detached houses area. The research results can be summarized as follows: 1) Detailed design guidelines are provided for apartment homes in MISA, but not for detached houses. 2) Apartment home and multi-family house parking lot equivaluation calculations exist in the DUP guidelines, however there are no regulations related to detached houses and the problem of parking for these residents is worsening which causes tension. 3) The DUP guidelines stipulate that the outer wall material of multi-family houses must be glass, however this is a dangerous material for use on the first floor, because cars that park close to this wall. 4) There is a significant risk to elementary and kindergarten students who must walk along the road in the inner blocks where cars are driving quickly. 5) There are a number of issues involved when planning parking lots without considering the characteristics of the area. The local government uses the traditional parking lot codes without considering the current regional characteristics, whereas the number of cars has dramatically increased. 6) The pedestrian mall is not currently being used for pedestrians, because it is full of parked cars due to the lack of parking space.

• Journal of Korea Multimedia Society
• /
• v.11 no.8
• /
• pp.1059-1071
• /
• 2008

Users in ubiquitous computing environment can easily access and use a multitude of devices and services anywhere and anytime. The key technology to realize this scenario is the method to intuitively provide proper user interfaces for each device and service. Previous attempts simply provided a designated user interface for each device and service or provided an abstract user interface to control common functions of different services. To select a target appliance, either user directly specified the target device or depended on sensors such as RFID tags and readers limiting the applicable scenarios. In this paper, we present UbiController which uniquely uses camera on the mobile device to recognize markers of appliances to acquire user interface for controlling task. UbiController aims to provide automatic discovery of multiple services in the smart home environment, support traditional GUI and novel camera-based recognition method as well as intuitive interaction methods for users. In this paper, we show experiments on the performance of UbiController's discovery and recognition methods and user feedback on interaction methods from a user study.