• Title/Summary/Keyword: National Infrastructure

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A Review of Intelligent Self-Driving Vehicle Software Research

  • Gwak, Jeonghwan;Jung, Juho;Oh, RyumDuck;Park, Manbok;Rakhimov, Mukhammad Abdu Kayumbek;Ahn, Junho
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.13 no.11
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    • pp.5299-5320
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    • 2019
  • Interest in self-driving vehicle research has been rapidly increasing, and related research has been continuously conducted. In such a fast-paced self-driving vehicle research area, the development of advanced technology for better convenience safety, and efficiency in road and transportation systems is expected. Here, we investigate research in self-driving vehicles and analyze the main technologies of driverless car software, including: technical aspects of autonomous vehicles, traffic infrastructure and its communications, research techniques with vision recognition, deep leaning algorithms, localization methods, existing problems, and future development directions. First, we introduce intelligent self-driving car and road infrastructure algorithms such as machine learning, image processing methods, and localizations. Second, we examine the intelligent technologies used in self-driving car projects, autonomous vehicles equipped with multiple sensors, and interactions with transport infrastructure. Finally, we highlight the future direction and challenges of self-driving vehicle transportation systems.

Acupuncture Treatment for Gouty Arthritis Using the Search Results of China National Knowledge Infrastructure (CNKI), PubMed: A Literature Review (통풍성 관절염의 침 치료에 대한 최근 연구동향 분석: China National Knowledge Infrastructure (CNKI), PubMed 검색을 중심으로)

  • Hong-Gi Keum;Byung-Cheul Shin
    • Journal of Korean Medicine Rehabilitation
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    • v.33 no.1
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    • pp.31-45
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    • 2023
  • Objectives The aim of this study is to find the future perspective through analyzing the trends of acupuncture treatment for gouty arthritis (GA) by searching the China National Knowledge Infrastructure (CNKI) and PubMed. Methods We searched clinical studies about acupuncture treatment for GA through the searching the electronic database of CNKI and PubMed. We analyzed the characteristics of selected studies according to research design, sample size, publication year, treatment methods, evaluation criteria and adverse events. Results Twenty-nine studies published from January 1, 2015 to July 1, 2022 were selected. They consisted of 25 randomized controlled trials, 3 non-randomized controlled trials, and 1 case reports. In these studies, several types of acupuncture treatments were performed and the most treatment was conventional acupuncture treatment with fine needles. The most commonly used evaluation outcome was effective rate. Conclusions Through this result, the Chinese literature positively reported the effect of acupuncture on GA. However, high-quality evaluation by rigorous research using well-designed and more objective outcomes is required.

Current Research Trend Analysis of Scalp Acupuncture Teatment for Parkinson's Disease Using the Search Results of China National Knowledge Infrastructure and PubMed (파킨슨병의 두침치료에 대한 최신 연구동향 분석: China National Knowledge Infrastructure, PubMed 검색을 중심으로)

  • Dong-June Lee;Byung-Cheul Shin
    • Journal of Korean Medicine Rehabilitation
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    • v.33 no.4
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    • pp.95-107
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    • 2023
  • Objectives The purpose of this study is to help find the future prospects by analyzing the trends of scalp acupuncture treatment for Parkinson's disease (PD) by searching the China National Knowledge Infrastructure (CNKI) and PubMed. Methods We searched clinical studies adopting scalp acupuncture treatment as a main intervention for PD through the searching the database of CNKI and PubMed. We analyzed the characteristics of selected studies especially according to study design, publication year, sample size, treatment period, treatment methods, outcomes criteria and adverse events. Results Twelve randomized controlled trials studies published from January 1, 2012 to July 1, 2023 were selected. In these studies, two types of scalp acupuncture treatments were performed and the most common treatment was Jiao shunfa's scalp acupuncture with fine needles. The most commonly used acupoints were "Chorea tremor control area", 風池 (GB20), 四神聰 (EX-HN1) and 百會 (GV20). The most commonly used outcome measures were effective rate, unified Parkinson disease rating scale (UPDRS) and UPDRS-III. Conclusions Through these results, we found that the Chinese review literature positively reported the effects of scalp acupuncture on PD. However, more high-quality evaluation using the well-designed studies including more objective outcomes should be required.

Evaluation of Logistics Infrastructure of Container Terminals in Northern Vietnam

  • Nguyen, Minh Duc;Kim, Sung-June;Jeong, Jung Sik
    • Journal of Navigation and Port Research
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    • v.40 no.5
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    • pp.305-310
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    • 2016
  • The sea-port in Northern Vietnam accounts for around one third of the total country's cargo throughput and for many decades has been playing an important role in the logistics system of the country. 11 container terminals currently operate in Northern Vietnam, concentrating in Haiphong city and Quang Ninh province. Despite the increasing demand, the competition among these container terminals has become increasingly more critical. In recent years, massive investments from both government and operators have been made to improve the capability of the local sea-port's logistics infrastructure. This critically needed comprehensive research evaluates the impact of the current logistics infrastructure condition on the competitiveness of terminals and quantitatively compares the competencies of these terminals. In order to meet such requirements, the paper first summarizes the indicators of the logistics infrastructures of the sea ports before developing and testing hypotheses to reveal the correlation between the given factors and the annual throughput of container terminals in the region. Factor analysis will then be applied to score the logistics infrastructure competency of each container terminal. A significant gap between logistics infrastructures among all container terminals was not observed and the competitiveness between container terminals is mostly driven by traditional activities including cargo handling and storage. According to the results, strategic thinking will be needed to contribute to related organizations for better decisions in investment, management, and operation.

A Study of the Economic Evaluation for the Agricultural Infrastructure Projects (농업기반정비사업 편익산정을 위한 지표 개선방안)

  • Kim, Young-Joo;Choi, Byeong-Han;Jo, Rae-Cheong;Choi, Young-Wan;Kim, Yun-Shik
    • Journal of Korean Society of Rural Planning
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    • v.20 no.2
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    • pp.139-150
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    • 2014
  • The purposes of this research are to review the current economic measures to be used to assess the economic effects of agricultural infrastructure projects, to find some effects not included into the current measures, and to suggest new additional economic measures. So thus, economic assessment for agricultural infrastructure projects has been criticized to be overestimated. For example, some research reported that the projects enhanced rice productivity by 20% or 30%. We suggest four new measures to evaluate economic effects of agricultural infrastructure projects: (1) enhancement in productivity, (2) switchover from low-income crops to high-income crops, (3) rises in land price, and (4) lower fluctuation in production.

Evaluation of Runoff Prediction from Managed Golf Course using WEPP Watershed Model (WEPP 모형을 이용한 골프장 잔디 관리에 따른 유출특성 모의)

  • Choi, Jaewan;Shin, Min Hwan;Ryu, Ji Chul;Kum, Donghyuk;Kang, Hyunwoo;Cheon, Se Uk;Shin, Dong Seok;Lim, Kyoung Jae
    • Journal of Korean Society on Water Environment
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    • v.28 no.1
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    • pp.1-9
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    • 2012
  • It has been known that Golf course could impose negative impacts on water-ecosystem if pollutant-laden runoff is not treated well. It is important to control non-point source and re-use treated wastewater from the golf course to secure water quality of receiving waterbodies. At golf courses, the rainfall-runoff is affected by various practices to manage grasses. In many hydrological modelings, especially in simple rainfall-runoff modeling, effects on runoff of plant growth and cutting are not considered. In the study, the water erosion prediction project (WEPP), capable of simulating plant growth and various management, was evaluated for its runoff prediction from golf course under grass cutting and irrigation. The %Difference, $R^2$ and the NSE for runoff comparisons were 1.15%, 0.93 and 0.92 for calibration, and 18.12%, 0.82 and 0.88 for validation period, respectively. In grass cutting scenario, grass height was managed to be 18~25 mm. The estimated runoff was decreased by 27%. The difference in estimated total runoff was 11.8% depending on irrigation. As shown in this study, if grass management and irrigation are well-controlled, water quality of downstream areas could be obtained.

Development of automatic alert populating system of earth structures based on sensor monitoring (센서 모니터링을 활용한 토류구조물 상황전파 자동화 시스템 개발)

  • Kim, Yong-Su;Ahan, Sang-Ro;Jung, Jae-Hyun;Han, Sang-Jea;Jung, Seung-Yong
    • Proceedings of the Korean Geotechical Society Conference
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    • 2009.03a
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    • pp.667-672
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    • 2009
  • Gathering information and systemization of infrastructure disaster management is to reduce uncertainties in making decisions and maximize the number of alternations. The key objects of a sensor-based progress report and propagation automation systems are to provide objective data, realize and support decision making and deliver them to a certain area, department, manager and other people rapidly. The major findings and results of this study are as follows. 1) Application of international standard-based alerting protocol(CAP; Common Alerting Protocol). 2) Development of database of existing progress report and propagation manual in order to achieve networking of safety management on major social infrastructure of the nation. 3) Development middleware application programs to progress report and propagation data using SMS, FAX, EMS, VMS, MMS.

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The Impact of Electricity Infrastructure Quality on Firm Productivity: Empirical Evidence from Southeast Asian Countries

  • BUI, Lan Thi Hoang;NGUYEN, Phi-Hung
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.9
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    • pp.261-272
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    • 2021
  • Rapid economic growth in recent years has caused a surge in energy consumption among Southeast Asian countries and laid a considerable burden on the already inadequate power infrastructure. As a result, frequent blackouts and prolonged outages have become common and weakened firm productive performance in those years. The main objective of this study is to examine the impact of power infrastructure quality on the performance of Southeast Asian manufacturing firms. In this study, the World Bank Enterprise Surveys was employed as the training dataset of 4723 manufacturing firms in the period of 2015-2016. The results of this study reveal that industrial firms that suffered from power outages had consistently lower productivity. As measured by the length of such events, more severe outages tend to be more harmful to the firm. Furthermore, the findings also indicated that most firms relied on self-generated electricity to reduce the negative impact of power outages, but this does not bring many benefits when operating at a small scale in some countries. Consequently, this study contributes to a growing literature that examines the economic impact of public infrastructure and how detrimental the poor state of such services is to a firm's downstream operations, productivity, and growth.

Development of Diagnosis System about Services and Infrastructure for Rural Welfare and Culture (농촌 복지·문화 서비스 및 인프라 진단체계 개발)

  • Kim, Soo-Jin;Bae, Seung-Jong;Kim, Dae-Sik;Im, Sang-Bong
    • Journal of Korean Society of Rural Planning
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    • v.25 no.1
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    • pp.51-65
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    • 2019
  • This study developed diagnostic system to understand the level of welfare cultural service and infrastructure in rural areas. The applicability was reviewed through the Delphi survey and the sample survey of 60 villages. The diagnostic indicators consist of three areas: the demand area, supply area, and delivery area. The demand area consists of 8 indicators, 25 indicators for welfare services and infrastructure (healthcare, social welfare) and 32 indicators for cultural services and infrastructure (culture, education, leisure sports). The service delivery area was divided into service supply area access and traffic accessibility (public transport use status and rural transport model status) by each indicator. A diagnostic system was applied to 60 villages. Services and infrastructure for rural welfare and culture were supplied more in the Si area than Gun area. The delivery area was easier to access the Gun area than Si area. In the case of traffic access, public transportation was more frequently used in the Si area than Gun area, and the rural transportation model was found to have a relatively large amount in the Gun area compared to Si area. The diagnosis system about services and infrastructure for rural welfare and culture will provide information necessary for establishment and decision making of regional development policy taking into account characteristics of rural areas in the future.