• Title/Summary/Keyword: Public Address System

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Low-Delay, Low-Power, and Real-Time Audio Remote Transmission System over Wi-Fi

  • Hong, Jinwoo;Yoo, Jeongju;Hong, Jeongkyu
    • Journal of information and communication convergence engineering
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    • v.18 no.2
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    • pp.115-122
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    • 2020
  • Audiovisual (AV) facilities such as TVs and signage are installed in various public places. However, audio cannot be used to prevent noise and interference from individuals, which results in a loss of concentration and understanding of AV content. To address this problem, a total technique for remotely listening to audio from audiovisual facilities with clean sound quality while maintaining video and lip-syncing through personal smart mobile devices is proposed in this paper. Through the experimental results, the proposed scheme has been verified to reduce system power consumption by 8% to 16% and provide real-time processing with a low latency of 120 ms. The system described in this paper will contribute to the activation of audio telehearing services as it is possible to provide audio remote services in various places, such as express buses, trains, wide-area and intercity buses, public waiting rooms, and various application services.

A Study on the Introduction of the National Point Number for Advanced Location-Finding (위치찾기 선진화를 위한 국가지점번호 도입방안 연구)

  • Yang, Sungchul
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.31 no.2
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    • pp.151-157
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    • 2013
  • The law for indicating the address based on the street name has taken effect in 1997. The address based on land-lot number will be changed to the address based on the street name giving odd numbers to the buildings situated on the left side and even numbers to the buildings situated on the right side per street. Searching locations by street name addresses is possible for residential areas, on the other hand, the system of finding locations is insufficient for farmlands, mountains and others, so it is unable to cope with crimes and emergency rescue. In order to make up for the weak points of street name address, the national point number, grid reference system was introduced for finding location of non-residential areas. Therefore, the purpose of this paper is to help the introduction the national point number. In this paper, we proposed a territory-oriented control point and grid range for the national point number. Numbering scheme of grid zone shall be alphanumeric, a two-letter pair Hangul and the grid coordinates in terms of Easting and Northing. We also proposed the notice area for the national point number and location of signs, application about the public and private sector.

The Function of Health Center in the New Public Health Age (공중보건의 역할변화와 보건소의 기능)

  • 배상수
    • Health Policy and Management
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    • v.11 no.1
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    • pp.131-152
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    • 2001
  • Public health system and public health practice have changed over the past decades as the result of social and epidemiologic changes. New public health concept emphasizes leadership, strategical thinking, systematic planning and effective performance to identify and solve complex health problem In Korea, the role of Health Center has been expanded rapidly. However there is strong suspicion that Health Center can achieve their mission. This paper aims at understanding what is the needed functions of Health Center and which of its aspects needs improvement. The main results of this study are summarizes as follows. District Health Law does not address the core functions of Health Center. The staffs of Health Center have difficulties in prioritizing their services. The recent attempt to restructure Health Center and change delivery pattern of public health services ended with only limited success. To effectively confront threats to the public's health, the three major function of Health Center must be ${\circled}1$ modifying individual behavior and lifestyle, ${\circled}2$ improving social and economic conditions, and ${\circled}3$ reforming health policies. Better results do not come from setting new functions only; they come from understanding and improving the processes that will then leads to better outcome. We recommend that policy-makers focus economic evaluation of public health programs, building and spreading of the scientific evidence of programs, linkage of public health research and public health program. The criteria of delegation of public health service to private sector is urgently needed. Making community health information data available on a routine basis to providers, managers and researchers of public health services helps promote the efficiency of the overall operation of public health system.

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A Study on Spatial Structures of Suwon in the Japanese Colonial Period (일제강점기 수원의 도시공간구조에 관한 연구)

  • Ahn, Kug-jin;Choi, Ji-Hae
    • Journal of architectural history
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    • v.28 no.4
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    • pp.17-26
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    • 2019
  • After opening Suwon railway station in 1905, a new road was constructed between Suwon station and Paldalmun(the South gate). It was the starting point to change urban structures of Suwon and shape the new city scape. In 1914, administrative districts of Suwon were reorganized. Suwon-myeon (township, a subdivision of Suwon-gun) was promoted to Suwon-eup(town) in 1931. Suwon-eup expanded its territory and changed the address system from 'li(里)' system to Japanese address system, 'Jeong(町)' in 1936. From 1920s, road system was changed and transformed Suwon's urban structures. A straight road was built from Jongro intersection to Janganmun(the north gate) in 1928. Another straight road was constructed between Suwon station to Padamun in the early 1930s. Public office buildings used the Hwa Seong HaengGung(華城行宮) and some of building moved to new location with new buildings. Main buildings of most schools in Suwon were reconstructed since 1930s. Commercial buildings and stores were sprung up and had their own characteristics by region. Around Suwon station, there are more hotels and restaurants than other areas. Rearranging administrative areas, developing road system and new buildings transformed Suwon's spatial structures. Constructing new roads formed a straight road passing through Suwon. After reorganizing administrative areas, this road turned to be the central axis of Suwon. Buildings in new style on the axis made the modern cityscape in Suwon.

A Design of Secure Electronic Health Information Management Protocol in the Internet of Things Environment (사물 인터넷 환경에서 안전한 전자의료정보 관리 프로토콜 설계)

  • Park, Jeong Hyo;Kim, Nak Hyun;Jung, Yong Hoon;Jun, Moon Seog
    • KIPS Transactions on Computer and Communication Systems
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    • v.3 no.10
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    • pp.323-328
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    • 2014
  • ZigBee based on the most vulnerable part of u-Healthcare system that uses the ZigBee communication is the wireless section. ZigBee communication sectors to identify vulnerabilities in this paper, we propose to compensate. ZigBee has been raised from the existing vulnerabilities organize and ZigBee also uses the 64bit address that uniquely identifies a vulnerability that was defined as exposure. And to prevent the exposure of a unique identifying address was used to address a temporary identification. ZigBee security services, the proposed system during the Network Key for encryption only use one mechanism of Residential Mode is used. Residential Mode on all nodes of the entire network because they use a common key, the key is stolen, your network's security system at a time are at risk of collapse. Therefore, in order to guard against these risks to the security policy Network Key updated periodically depending on the method used to. The proposed evaluation and comparative analysis of the system were exposed in the existing system can hide the address that uniquely identifies a public key Network Key also updated periodically, so that leaks can occur due to reduced risk.

A Study on the Proper Supply of Public Silver Houses (공공실버주택의 적정 공급에 대한 연구)

  • Nam, Young-Woo
    • Journal of Digital Contents Society
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    • v.18 no.1
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    • pp.203-208
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    • 2017
  • The South Korean society is rapidly aging, thereby highlighting the need to urgently prepare for the stabilization of housing for the elderly. In order to address such issues stemming from the elderly population, the South Korean government has been ramping up the supply of public silver houses for the elderly. Furthermore, it is necessary to select the optimal construction sites and conduct financial feasibility study on the selected sites in order to ensure a successful supply of public silver houses. In this study, the author proposed the need for building an integrated database by using geographic and demographic information, as well as the information on social welfare costs. Moreover, a concept for a system capable of performing optimal site analysis and feasibility study using the aforementioned information was suggested.

Usage Patterns and Severity Classification of Elderly Patients in a Public Hospital Emergency Department

  • Yon-Hee, Seo;Sun-Og, Lim
    • Journal of the Korean Applied Science and Technology
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    • v.41 no.3
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    • pp.673-684
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    • 2024
  • This study aims to enhance the accuracy of severity classification by examining the usage patterns and characteristics of emergency department visits. It focuses on adult and elderly patients who visited a public hospital in Seoul. This descriptive study retrospectively reviewed the electronic medical records of patients who visited the emergency department of a public hospital between November and December 2023. The total number of participants was 1,033, with 46.4% (n=479) being elderly and 53.6% (n=554) being adults. The chief complaints of the participants were as follows: for the elderly, nervous system symptoms at 8.2% (n=85) and digestive symptoms at 7.5% (n=77) were the most common, while for adults, gastrointestinal symptoms at 11.0% (n=114) and trauma at 8.6% (n=89) were more prevalent. In the case of the elderly, patients classified as urgent accounted for the highest percentage at 23.9% (n=247), while for adults, non-emergency were more prevalent at 32.2% (n=333). The initial severity classification error rate for elderly patients in the urgent was 3.8%, indicating that the suitability of KTAS for elderly patients with high severity was low. To minimize severity classification errors and enhance KTAS accuracy, it's essential to address its current limitation of only classifying adults and children separately by developing a KTAS classification system that reflects the diverse characteristics of elderly patients.

A Study on the Evaluation of the Work-Net, a Web-based Public Employment Information System (웹 기반 공공고용정보시스템 워크넷(Work-Net)평가에 관한 연구)

  • Kim, Soon-Won
    • Journal of the Korean Society for information Management
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    • v.20 no.2
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    • pp.93-112
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    • 2003
  • A public information system is being expanded, along with the advance of information technology, to strengthen national competitiveness and provide people with better services. And there also is a growin need for the better performance of that system, as a tremendous amount of public financial resources is invested in that. To address that need, it's required to make an evaluation of its efficiency on a regular basis to identify its problems and make it work better. The purpose of this study was, accordinglu, to examine the quality of data and services provided by the Work-Net, a Web-based public employment information system. The subjects in this study were 102 users of it, and the system was evaluated in terms of content, accuracy, timeliness, display format, ease of use and customer support. For data analysis, t-test and one-way ANOVA were implemented to find out the general characteristics of the users, and to see Whether or not their view was different according to the type of information they searched for. The findings of this study are expected to lay some foundation for intensifying the efficiency of the public and private employment information systems.

Transition from Diagnosis to Assessment System in Public Institution Personal Information Protection Management: Policy Approaches and Recommendations (공공기관 개인정보보호 관리 수준 진단에서 평가 체계로의 전환 : 정책적 접근 및 제언)

  • Youn-hee Hong
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.34 no.4
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    • pp.801-809
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    • 2024
  • In the digital age, the importance of personal information has magnified, underscoring the need for enhanced personal information protection, especially within public institutions. Despite ongoing efforts since 2007, significant breaches in public sector information underline persistent vulnerabilities. This study advocates for a transition from a diagnostic to an assessment framework to fortify privacy management in public institutions, as mandated by recent legislative revisions. The amended Personal Information Protection Act introduces an assessment approach, aiming to comprehensively assess and mitigate risks by expanding the scope of evaluation and implementing robust regulatory measures. This study examines the limitations of the current diagnostic practices through literature review and case analysis and proposes a systematic approach to adopting the new assesment system. By enhancing the assessment framework, the study expects to improve the effectiveness of personal information management in public institutions, thereby restoring public trust and ensuring a stable progression into a more secure digital era. The transition to an assessment system is designed not only to address the gaps in the current framework but also to provide a methodical assessment that supports ongoing improvement and compliance with enhanced legal standards.

A Study on Improvement Measures for the Design Documents Delivery System in Public Road Construction Projects (공공 도로건설사업에서의 설계도서 납품체계 개선방안에 관한 연구)

  • Ok, Hyun;Kim, Seong-Jin;Kim, Tae-Hak;Ju, Ki-Bum
    • International Journal of Highway Engineering
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    • v.20 no.2
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    • pp.45-55
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    • 2018
  • PURPOSES : This study aims to survey and analyze the status of the design and completion documents output delivery system in public construction projects in order to assess the problems of the Ministry of Land, Infrastructure and Transport (MOLIT)'s electronic delivery system, with a focus on roads and rivers, and to offer improvement measures. METHODS : This study first surveys and analyzes laws and existing study trends with regard to the design and completion documents output delivery system in public construction projects. It further analyzes the status of the output delivery system in public construction projects, including roads, rivers, expressways, water resources, and railroads. In addition, a comparative analysis of the current electronic delivery system of MOLIT and Korea Expressway Corporation in the road field is conducted, and the problems and improvement measures for MOLIT's electronic output delivery system are presented. This study seeks to analyze problems and prepare improvement measures with regard to road and river public construction projects, as ordered by MOLIT's five regional offices. RESULTS : This study sought to prepare the electronic output delivery system with regard to public construction projects and present the analysis of its major problems and improvement measures in four categories: "the preparation of electronic design documents output delivery system improvement measures including inspection and delivery," "preparation of guidelines, systems, etc., concerning electronic design documents," "preparation of improvement measures for the construction project management system and electronic design document support tools", and "linking of MOLIT's electronic output delivery system with relevant agencies and the expansion thereof to local governments." CONCLUSIONS : This study analyzed the current status and problems of the MOLIT's electronic output delivery system in the field of road and river construction projects, and presented corresponding improvement measures. This study is expected to address the problems of the MOLIT's electronic output delivery system, and to provide the foundation for the preparation of an efficient electronic output delivery system for design and completion documents. In addition, this study is expected to boost the quality and utilization of the electronic design documents output, and to exchange, share, and link construction information among relevant agencies so as to prepare the foundation for sharing construction information.