• Title/Summary/Keyword: P2P Communication

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A Study on Correlation among Viewers by Medium based on KBS PIE-TV Index

  • Lee, Jong-Soo;Hamacher, Alaric;Kwon, Soonchul;Lee, Seunghyun
    • International journal of advanced smart convergence
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    • v.6 no.4
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    • pp.9-18
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    • 2017
  • In order to respond to the ever-changing media environments in the era of smart and mobile technology, KBS has introduced and partially applied PIE-TV and PIE-nonTV modes that monitor the average number of viewers among the national population group by means of the sample household extraction method which is a traditional way of rating investigation. This study analyzes the correlation between the number of viewers of premiere, re-air broadcasting, and MPP channel programs and the number of OTT-based VOD viewers in reference to the data extracted from PIE-TV survey results. KBS conducted a survey for 3 months between June and August 2017 to measure the PIE-TV Index, based on which the above-mentioned correlation was analyzed with programs classified to entertainment, drama, and cultural programs. For data analysis, SPSS (Ver. 18.0 for Window, SPSS Inc, Chicago, IL, USA) was utilized. It was assumed that when p<0.05 in the confidence interval of 95%, statistically significance would be secured. Among the 30 subjects in the simple correlation analysis, the parameter was determined by the Person correlation coefficient and the non-parameter by the Spearman correlation coefficient. Analysis results are as below: (1) As the number of viewers of premier entertainment, drama, and cultural programs was larger, the number of VOD viewers was larger accordingly. (2) As for entertainment and drama programs, as the number of re-air broadcasting viewers was larger, the number of VOD viewers decreased accordingly. (2) As for entertainment and drama programs, as the number of MPP viewers was larger, the number of VOD viewers decreased accordingly. It is expected that this statistical data can be utilized for strategic planning of MPP channel lineups including terrestrial TV broadcasting, cable TV, etc.

The Wireless Monitoring System of Respiration Signal (호흡신호 무선 통신 시스템 개발)

  • Son, Byoung-Hee;Jang, Jong-Chan;Yang, Hyo-Sik;Cha, Eun-Jong
    • Journal of the Institute of Convergence Signal Processing
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    • v.12 no.3
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    • pp.157-162
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    • 2011
  • This study is about implementing wireless transferring system in pre-hospital cardiopulmonary resuscitation(CPR). Also, this study includes monitoring based feedback between patient and hospital to increase the survival rate of emergency patient by developing the performance of cardiopulmonary resuscitation in pre-hospital. It minimizes the loss of flow rate or gastric inflation through the space between the airway and the esophagus, which enables the inspiration-expiration rate to be measured more precisely. Due to these reasons this study applied ET insertion based respiratory sensor to measure flow rate. The main indices of artificial ventilation are justified from minute respiration(V), end-tidal $CO_2(E_TCO_2)$, and tracheal pressure($P_{tr}$). The simulation is performed to verify the bandwidth and delay time of transport network for in-hospital monitoring even as transporting images and voice information simultaneously. The total bandwidth is 815 kbps, and WLAN (IEEE 802.11x) is used as communication protocol. The network load is under 1.5% and the transmit delay time is measured under 0.3 seconds.

A study on the professional self-concept of dental hygiene students and their satisfaction level with clinical practice (치위생과 학생의 전문직 자아개념과 임상실습 만족도와의 관계 연구)

  • Kang, Yong-Ju
    • Journal of Korean society of Dental Hygiene
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    • v.9 no.1
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    • pp.73-84
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    • 2009
  • The purpose of this study was to examine the professional self-concept of dental hygiene students, their satisfaction level with clinical practice and the correlation of the two factors. The subjects in this study were 129 dental hygiene seniors at a college located in the city of J. The selected students had been engaged in a 16-week clinical practice. The findings of the study were as follows: 1. The dental hygiene students investigated got a mean of 3.34 out of possible five points on professional self-concept. As for the subfactors of professional self-concept, they got 3.75, 3.38 and 2.87 respectively on communication, professional work handling and satisfaction level. 2. They got a mean of 3.29 out of possible five points on satisfaction level with clinical practice. As to the subfactors of the satisfaction level, they gave 3.60, 3.50, 3.46, 3.04 and 2.83 to environments for practice, the content of practice, supervision, the length of practice and evaluation respectively. 3. In regard to the relationship of general characteristics to professional self-concept, satisfaction level with the major and social perception of dental hygienist made significant differences to professional self-concept. 4. As for connections between the general characteristics and satisfaction level with clinical practice, satisfaction with clinical practice was significantly different according to satisfaction with the major, satisfaction with the amount of practice and satisfaction with social perception of dental hygienist. 5. There was a significantly positive correlation between professional self-concept and satisfaction level with clinical practice(r=.383, p=.001). In conclusion, how much dental hygienists who are trained to be a dental hygienist are gratified with clinical practice is one of integral factors to affect their development of professional self-concept. Therefore prolonged research efforts should be directed into determining in which way clinical practice should be implemented to develop the professional self-concept of would-be dental hygienists and how to raise their satisfaction with clinical practice.

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A Study on Nursing Students' Attitudes toward Complementary and Alternative Medicine (CAM) (간호학생이 지각하는 보완대체요법에 대한 태도 조사연구)

  • Kim Yeong-Hee
    • Journal of Korean Public Health Nursing
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    • v.18 no.2
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    • pp.276-285
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    • 2004
  • The purpose of this study was to help in explaining the necessity of education on complementary and alternative medicine(CAM) and opening relevant curriculums in nursing education by grasping the kinds of CAM in which nursing students want to be opened. Data were collected from September 27, 2003 through October 20, 2003. A group of 865 nursing students were surveyed using questionnaires in seven universities whose curriculums on CAM have not been available. Collected data were statistically analyzed by using SAS 8.02 system, and the study results are as follows: 1. The average of subjects' behavior toward CAM was 3.52 of the total 5 with practical affairs 3.79. medical treatment 3.79, social concerns 3.84, and communication 3.78. 2. Most nursing students $(90.6\%)$ did not precisely understand the meaning of CAM although they had heard of it. Most of them $(85.5\%)$ had no experience of applying CAM. The study also revealed that more qualified CAM lecturers in the future are needed: specialist in the relevant field $(83.2\%)$, doctor and herb doctor $(6.5\%)$, clinical nurse $(6.0\%)$ and professor of the department of nursing science $(4.3\%)$. 3. Concerning students' behavior toward CAM, there were statistically significant difference between students from agrarian and fishing villages (F=4.91. p=.007) and the others. 4. CAM courses that students want were therapeutic touch (massage) $(22.9\%)$. aroma therapy $(14.8\%)$, manual healing methods $(14.7\%)$, treatment of blood vessel $(8.3\%)$, foot reflexology $(7.9\%)$, and heart remedy $(6.8\%)$. In conclusion, the study indicated that nursing students had positive attitudes toward CAM and for this. healers should have a frank talk with patients in order to maximize symptom-relieving effects. However, the study showed that most nursing students did not understand the exact meaning of CAM. Considered the fact that improvement of both health status and quality of life will be an important issue in the future, active introduction and education of CAM in nursing curriculum are a matter of necessity.

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A Subjectivity of Marital Relationship (부부관계의 주관성 연구)

  • Kim, Boon-Han;Lee, Hee-Young;Jung, Young-Mi;Lee, Eun-Young;Kim, Heung-Kyu
    • Korean Journal of Adult Nursing
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    • v.13 no.2
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    • pp.191-199
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    • 2001
  • This study was undertaken to find out the perception of marital relationship and to understand the typology. The Q-population consisted of 153 statements that were collected and 33 Q-samples were selected. The P-samples for this study were made up of 30 who were married. Each responded to a Q-set of marital relationship according to 9-point scale. The results of Q-sorting were coded and analysed using QUANL PC program. Typological observations were as follows. 1) One in body and spirit type : In type 1, couples had different backgrounds respectively but felt one in body and spirit. 2) Companionship type : 2. Couples had not so much a hierarchial as a horizontal relationship. Couples perceived themselves as interdependent and friends. 3) Adaptation type : Couples readily adapted themselves to a marital relationship. They only depended on their spouses at times and stressed the relationship. Marriage was accepted as destiny rather than choice. On the basis of these results, we suggest: When a marriage is in trouble, that we assess the type of marital relationship in advance and intervene with a proper program. In addition, practical intervention programs need to be developed tailored to the type of subjective perception about the marital relation

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A Fully-integrated High Performance Broadb and Amplifier MMIC for K/Ka Band Applications (K/Ka밴드 응용을 위한 완전집적화 고성능 광대역 증폭기 MMIC)

  • Yun Young
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.8 no.7
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    • pp.1429-1435
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    • 2004
  • In this work, high performance broadband amplifier MMIC including all the matching and biasing components, and electrostatic discharge (ESD) protection circuit was developed for K/Ka band applications. Therefore, external biasing or matching components were not required for the operation of the MMIC. STO (SrTiO3) capacitors were employed to integrate the DC biasing components on the MMIC, and miniaturized LC parallel ESD protection circuit was integrated on MMIC, which increased ESD breakdown voltage from 10 to 300 V. A pre-matching technique and RC parallel circuit were used for the broadband design of the amplifier MMIC. The amplifier MMIC exhibited good RF performances and good stability in a wide frequency range. The chip size of the MMICs was $1.7{\pm}0.8$ mm2.

Incidence of Post-Traumatic Stress Disorder after a Mild Traumatic Brain Injury : Preliminary Investigation Using the Brief Neuropsychological Screening Test

  • Choi, Mi Sun;Seo, Sook Jin;Oh, Chang Hyun;Kim, Se-Hyuk;Cho, Jin Mo
    • Journal of Korean Neurosurgical Society
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    • v.55 no.4
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    • pp.190-194
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    • 2014
  • Objective : Post-traumatic stress disorder (PTSD) is a group of diseases that are observed in patients who had experienced a serious trauma or accident. However, some experienced it even after only a mild traumatic brain injury (TBI), and they are easily ignored due to the relatively favorable course of mild TBI. Herein, the authors investigated the incidence of PTSD in mild TBI using brief neuropsychological screening test (PTSD checklist, PCL). Methods : This study was conducted on patients with mild TBI (Glasgow coma scale ${\geq}13$) who were admitted from January 2012 to December 2012. As for PCL, it was done on patients who showed no difficulties in communication upon admission and agreed to participate in this study. By using sum of PCL, the patients were divided into high-risk group and low-risk group. PTSD was diagnosed as the three major symptoms of PTSD according to the Diagnostic and Statistical Manual of Mental Disorders, fourth-edifion. Results : A total of 314 TBI patients were admitted and 71 of them met the criteria and were included in this study. The mean age was 52.9 years-old (range : 15--94). The mean PCL score was 28.8 (range : 17--68), and 10 patients were classified as high-risk group. During follow-up, 2 patients (2.7%) of high risk group, were confirmed as PTSD and there was no patient who was suspected of PTSD in the low-risk group (p=0.017). Conclusion : PTSD is observed 2.8% in mild TBI. Although PTSD after mild TBI is rare, PCL could be considered as a useful tool for screening of PTSD after mild TBI.

Development of Wireless Electronic Cardiogram and Stethoscope (ECGS) to Measure ECG Signal and Heart Sound (심전도와 심음을 측정하기 위한 무선 전자 심전도-심음 청진기 개발)

  • Cho, Han Seok;Kang, Young-Hwan;Park, Jae-Soon;Choi, Jin Gyu;Joung, Yeun-Ho;Koo, Chiwan
    • Journal of Biomedical Engineering Research
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    • v.43 no.2
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    • pp.124-130
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    • 2022
  • In this paper, we proposed a portable electronic cardiogram and stethoscope (ECGS) that can simultaneously perform the electrocardiogram (ECG) and auscultation tests to increase the reliability of diagnosis of heart disease. To measure the ECG and heart sound (HS) at the same time, three ECG electrodes and a microphone sensor were combined into a triangular shape with a width of 90 mm and a height of 97 mm that can be held in one hand. In order to prevent skin problems when they contact the patient's skin, a capacitive coupled electrode was selected as the ECG electrode and a silicone material was used in a chest piece with the microphone sensor. For the signals measured from the electrodes and the chest piece, filters were respectively configured to pass only the signals of 0.01-100 Hz and 20-250 Hz, which are frequency bands for ECG and HS. The filtered ECG and HS analog signals were converted into digital signals and transmitted to a PC using wireless communication for monitoring them. The HS could be auscultated simultaneously using an earphone. The monitored ECG had an SNR of about 34 dB and a P-QRS-T waveform is clearly visible. In addition, the HS had an SNR of about 28 dB and both S1 and S2 are clearly visible. It is expected that it can aid doctors' inexperience in analyzing the ECG and HS.

A novel approach for the definition and detection of structural irregularity in reinforced concrete buildings

  • S.P. Akshara;M. Abdul Akbar;T.M. Madhavan Pillai;Renil Sabhadiya;Rakesh Pasunuti
    • Structural Monitoring and Maintenance
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    • v.11 no.2
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    • pp.101-126
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    • 2024
  • To avoid irregularities in buildings, design codes worldwide have introduced detailed guidelines for their check and rectification. However, the criteria used to define and identify each of the plan and vertical irregularities are specific and may vary between codes of different countries, thus making their implementation difficult. This short communication paper proposes a novel approach for quantifying different types of structural irregularities using a common parameter named as unified identification factor, which is exclusively defined for the columns based on their axial loads and tributary areas. The calculation of the identification factor is demonstrated through the analysis of rectangular and circular reinforced concrete models using ETABS v18.0.2, which are further modified to generate plan irregular (torsional irregularity, cut-out in floor slab and non-parallel lateral force system) and vertical irregular (mass irregularity, vertical geometric irregularity and floating columns) models. The identification factor is calculated for all the columns of a building and the range within which the value lies is identified. The results indicate that the range will be very wide for an irregular building when compared to that with a regular configuration, thus implying a strong correlation of the identification factor with the structural irregularity. Further, the identification factor is compared for different columns within a floor and between floors for each building model. The findings suggest that the value will be abnormally high or low for a column in the vicinity of an irregularity. The proposed factor could thus be used in the preliminary structural design phase, so as to eliminate the complications that might arise due to the geometry of the structure when subjected to lateral loads. The unified approach could also be incorporated in future revisions of codes, as a replacement for the numerous criteria currently used for classifying different types of irregularities.

The Study on the Influence of Selection Characteristics of Franchise System, business possibility, Communication, Moral Hazard on Franchisee's Perceived Risk, and Recontracting Intention in the Food Service Franchise Industry (외식 프랜차이저의 사업성, 커뮤니케이션, 모럴해저드가 프랜차이지의 위험지각과 재계약의도에 미치는 영향)

  • Yu, Jong-Pil;Lee, In-Ho
    • Journal of Distribution Research
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    • v.16 no.1
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    • pp.1-27
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    • 2011
  • I. Introduction: This study is to examine the structural relationships among exogenous variable (preliminary and post-support, franchisee's perceived business possibility, communication, moral hazard), the mediated variables(satisfaction, perceived risk, trust) and dependent variable(recontracting intention) in the food service franchise industry context. More specifically, this study has considered some realistic characteristics factors influencing satisfaction, perceived risk and trust between franchisors and franchisees and their further recontracting intention from the perspective of a practical approach. In this study, 437 data has been collected and used for the SPSS and AMOS analysis. The data were analyzed with structural equation modeling. Since the result of the overall model analysis demonstrated a good fit, we could further analyze our data. II. Research Model: This study is to examine the structural relationships among preliminary and post-support by franchisor, franchisee's perceived business possibility, and communication, moral hazard, has on effect on franchisee's satisfaction, perceived risk, trust and recontracting intention in the food service franchise industry context. Hypotheses are as following (Stern & EL-Ansary 1988; Oliver, 1997;Kee & Knox, 1970; Moorman, Deshpande & Zaltman, 1993; Perron, 1998; Zaheer, McEvily, Perrone, 1998). III. Result and Implication: We examined franchisee who have food service stores for samples of this study. The data were analyzed with structural equation modeling using path analysis. The result of the overall model analysis appeared as following: ${\chi}^2$ = 61.578 (d.f.=9, p<0.01), CFI =.990, GFI =.973, AGFI =.863, RMR =.019, RMSEA= .116, NFI = .988, TLI = .959. The findings can be summarized as follows: First, preliminary and post support of franchisor, perceived business possibility and communication positively influence to franchisee's satisfaction. Second, moral hazard of franchisor has negatively influence to franchisee's satisfaction and positively influence to perceived risk. Third, franchisee's satisfaction and trust has positively influence to recontracting intention. Fourth, franchisee's perceived risk has negatively influence to trust and recontracting intention. We can concluded that franchisor's preliminary and post support of franchisor, perceived business possibility and communication may be considered as the important factors influence to franchisee's satisfaction. Moral hazard has become a focused issue in franchise industry. Finally, the managerial implication has been stated as followings: First, in the process of building a systematic industry support franchise system and developing a creative business model, franchisee's stable profitability should be considered as the first important factor. The franchisee's trust to franchise may become a dominant factor that influence the business expansion of franchisor. Second, franchisor should communication with their franchisees and deal with the realistic difficulties faced by them with an effort. Third, the franchisor should achieve a synergy effect by utilizing the win-win strategy. The moral hazard strategy that achieving the profit through franchisee's damage will not be inadvisable to franchisor. Then the long-term oriented development and profitability can be maintained. To do so, the franchise industry may break away from the traditional business structure to improve management transparency and competitiveness on investment and organizational changing management. The conflict between franchisor and franchisee also can be reduced and big success can be achieved in the franchise industry.

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