• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.18 no.1
• /
• pp.32-41
• /
• 2014

Currently, the three major Korean mobile operators hold a total of 390MHz of bandwidth, but at the current data traffic increase of almost 6 times per year, more frequency bandwidth should be secured in order to meet the exploding data traffic in the future. It is believed that 2.1GHz frequency band is suitable for mobile communication in the light of frequency characteristics and continuity of the band. In this paper, we perform compliance analysis with the international radio regulation for coexistence with the adjacent region in order to use 2.1GHz band for LTE-Advanced. In addition, we verify that 2.1GHz band can coexist with the adjacent band by conducting an interference evaluation.

• Korean Journal of Social Welfare
• /
• v.65 no.3
• /
• pp.265-289
• /
• 2013

The purpose of this study is to analyse the reality and dynamics of transition of work-family reconciliation policy and gender regime in Germany to focus on recent introduction of parents benefit by applying meta path analysis. There is made of 'layering' in work-family reconciliation policy area. Because political barrier has alleviated they can introduce parents benefit, but cannot help stick to child care benefit because of internal barrier. But because parents benefit has activated by 'differential growth', German gender regime has suffered core transition of complementation that dominant structure has changed from 'sequential reconciliation' to 'concomitant reconciliation'. On the other hand, by 'purposeful decoupling' of gender area, core activists have attempted to cut the possibility of weakening of coordination relationship on main institutional areas of German model.

• Korean Journal of Social Welfare
• /
• v.57 no.4
• /
• pp.291-319
• /
• 2005

The purpose of the paper is to discuss the restructuring of the family policy from a gender-integrating perspective. Several meaningful conclusions were reached. First, examining family policy from the laborer's perspective, the issue of work and family becomes not a gender-related issue but rather an issue for universal people. Second, in order to include the difference in interest among men and women in the labor market, and to view the issue from a gender-integrating perspective, the framework for family policy should consider the place of labor. Third, if family policy is divided into family and labor arena based on the above mentioned framework, the core content of the policy should gear toward loosening and/or eliminating barriers to fulfill the right to work for pay and the right to care for family. Lastly, family policy should aim at men and women sharing the responsibility of supporting and caring for the family. By doing so, we may be closer to maintaining work and family together, the ultimate goal of family policy.

• Proceedings of the Korea Electromagnetic Engineering Society Conference
• /
• 2000.11a
• /
• pp.272-276
• /
• 2000

본 논문에서는 I/O Cable을 가지는 일반 통신시스템의 전자파 방사 Mechanism을 분석하고, Design에 있어 중요한 Parameter를 도출하였다. 중요한 Design Parameter로 도출된 I/0 Cable의 Coupling mechanism을 실험 및 상용 Software를 이용한 Simulation방법에 의해 분석하고, 이에 대한 EMC Design Rule을 제시하였다. 도출된 EMC Design Rule을 준수하여 Design을 실현하고, 그 효과를 분석하였다. EMC Design Rule에 기반을 둔 개발을 통해 제품의 Redesign및 복잡한 Debug 과정이 없이 효과적으로 전자파 양립성 규격을 만족하였다.

• Korean Journal of Labor Studies
• /
• v.14 no.2
• /
• pp.23-58
• /
• 2008

본 연구는 한국노동연구원에서 실시한 "일과 가족 양립 지원제도 운영실태조사" 원자료를 활용하여 우리나라 기업의 유연근로제도에 대한 수용성 정도를 실증분석한 것이다. 유연근로제도를 포함한 가족친화 경영의 기업수용성은 출산과 양육친화단계에서는 높지만, 가족친화적 경영수준으로는 확장되지 않고 있음을 발견할 수 있었다. 기존의 연구와 달리 기업 특성을 성(gender)과 시장(market) 가치에 따라 구분하여 유연근로제도의 수용성이 어떤 영역에서 높게 나타나는지를 분석한 결과 여성친화적-고시장성 기업일수록 보다 높은 수용성을 가지는 것으로 나타났다. 또한 다변량분석을 활용하여 유연근로제도에 대한 기업의 수용성 결정요인을 도출하였는데 여기에서는 비정규직 활용과 유연근로제도가 대체관계에 있는 것으로 분석되었다. 따라서 현재 우리나라 노동시장에서 큰 이슈가 되고 있는 비정규직의 무분별한 활용과 증가를 억제할 수 있는 대안 중의 하나로 유연근로제도를 활성화하는 방안을 제안할 수 있으며, 이는 기업의 효율적인 인력운영과 함께 일자리의 질도 제고시킬 수 있어 기업과 근로자가 모두 윈윈(win-win)하는 전략이 될 수 있음을 시사한다고 하겠다.

• Journal of Convergence for Information Technology
• /
• v.10 no.1
• /
• pp.128-138
• /
• 2020

The purpose of this study is to verify the medial effect of social support in the process of the effect of working mother compatibility on spouse satisfaction. To that end, 727 employed workers who were kept samples until the 10th year (2017) were analyzed out of the data from the Korea Children's Panel Survey. Data analysis was performed for frequency analysis and regularity verification, and correlation and hierarchical regression were performed. In addition, the three-step method of Baron & Kenny (1986) was used to verify the mediated effect of social support. The results of the verification are as follows. First, the advantages of working mothers' work-in-home compatibility have had a static impact on their spouse satisfaction(ß=.164, t=4.078, p<.01). Second, the conflict between working mothers and their families has shown an amulet (-) impact on their spouse satisfaction(ß=-.134, t=-3.438, p<.05). Third, the partial selling effect of social support was verified in the process of the effect of the factors of conflict and advantages of working mothers on their spouse satisfaction. Based on the above research results, the compatibility of working mothers with working families suggested development and application of programs to enhance spouse satisfaction and social support.

• The Journal of The Korea Institute of Intelligent Transport Systems
• /
• v.8 no.6
• /
• pp.82-87
• /
• 2009

Recently, a great variety of radio services are provided and interference problem between radio systems is being watched remarkably. Therefore, a study of interference between radio systems is needed. In this paper, compatibility between Ultra Wideband (UWB) and Terestrial Digital Multi-media Broadcasting (T-DMB) is analyzed and then distance between them is computed. UWB systems have a very broad frequency characteristic. A big advantage is to share frequency that is already allocated to other systems. T-DMB is a good point that while L-Band is already used for DAB, T_DMB is free of charge. AT-DMB (Advanced T-DMB) is being standardized recently. The result which is analyzed for the interference effects between UWB and T-DMB Systems is 10 [dB], which is value calculated by C/(N0+I), at 80 [m] and then the value is saturated at 150 [m].

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.14 no.1
• /
• pp.84-92
• /
• 1989

The purpose of this paper is to demonstrate the effect of a FH spread spectrum communication interference in TV channels and frequency compatibility in 30-88 MHz frequency band. To calculate this interferece, the strength of electric field of TV signals is derived as a function of distance between TV transmitter and receiver. An interference model is established based upon thefield strength by using the relation between the transmitted power of FH spread spectrum communications and the distance between the TV image signals, which makes TV screen a cceptble, Simultaneous transmission of FH sprea spectrum signals and TV signals is shown to be feasible, as far as the interference level is lower than the TV image signal level by 23.5dBm. As a result of frequency analysis and experiment, the FH spread spectrum communication can be used together with TV channels.

• Journal of Digital Convergence
• /
• v.12 no.3
• /
• pp.269-275
• /
• 2014

The DAB system was designed to provide CD quality audio and data services for fixed, portable and mobile applications with the required BER below $10^{-4}$. However for the T-DMB system with the video service of MPEG-4 stream, BER should go down $10^{-8}$ by adding FEC blocks which consist of the Reed-Solomon (RS) encoder/decoder and convolutional interleaver/deinterleaver. In this paper we propose two types of turbo coded T-DMB system without altering the puncturing procedure and puncturing vectors defined in the standard T-DMB system for compatibility. One(Type 1) can replace the existing RS code, convolutional interleaver and RCPC code by a turbo code and the other one (Type 2) can substitute the existing RCPC code by a turbo code. Simulation results show that two new turbo coded systems are able to yield considerable performance gain after just 2 iterations. Type 2 system is better than type 1 but the amount of performance improvement is small.

• The monthly packaging world
• /
• s.333
• /
• pp.68-73
• /
• 2021