• 제목/요약/키워드: Chinese aviation

검색결과 38건 처리시간 0.022초

제주남단 항공회랑(AKARA-FUKUE Corridor)의 항공안전 개선에 관한 연구 (A Study on the Improvement of Aviation Safety in Jeju Southern Air Corridor(AKARA-FUKUE Corridor))

  • 안희복;황호원
    • 한국항공운항학회지
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    • 제29권2호
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    • pp.55-66
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    • 2021
  • ICAO recommended that airspace monitoring and periodic safety assessments in each Contracting State ensure the stability of the airspace, since reducing the aircraft lateral and vertical separation intervals would rather increase the risk of collision. The target level of safety of the AKARA-FUKUE Corridor at the southern end of Jeju was 247×10-9. In simple comparison, this means that the risk of an aircraft collision in this area (international safety standards, 5.0×10-9) is about 50 times higher. The scope of this study is to organize the concept of terms, analyze the air traffic volume, the current status of navigational safety facility usage fees, and investigations of an aircraft collision risk in Jeju southern air corridor. Analyzing government policies and overseas evaluations, revising some of the existing contents, presenting some of the additional contents of new routes, and changing the instrument procedure for Korean-Chinese routes, change of arrive/departure route between Incheon Airport and Shanghai Airport, reduce the risk of aircraft collisions. We hope to restore airspace sovereignty, contribute to policies for the government to take the lead in solving this problem, and expect stability and operational efficiency in air traffic.

Effects of Secondary Left-sided Portal Hypertension on the Radical Operation Rate and Prognosis in Patients with Pancreatic Cancer

  • Zhang, Shuo;Wen, Dong-Qing;Kong, Ya-Lin;Li, Ya-Li;Zhang, Hong-Yi
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권5호
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    • pp.2239-2244
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    • 2014
  • Objective: To investigate the effects of secondary left-sided portal hypertension (LSPH) on the radical operation rate of patients with pancreatic cancer and systemically evaluate the prognosis of patients with LSPH secondary to pancreatic cancer after radical surgery. Materials and Methods: The data of patients with pancreatic cancer who underwent laparotomy over a 15-year period in Department of Hepatobiliary Surgery of Chinese PLA Air Force General Hospital from Jan. 1, 1997, to Jun. 30, 2012 was retrospectively reviewed. Results: A total of 362 patients with pancreatic cancer after laparotomy were selected, including 73 with LSPH and 289 without LSPH. Thirty-five patients with LSPH (47.9%) and 147 without non-LSPH (50.9%) respectively underwent radical operations. No significant difference was found between these two groups regarding the total resection rate and stratified radical resection rate according to different pathological types and cancer locations. The mean and median survival time of patients after radical operation in LSPH group were $13.9{\pm}1.3$ months and 14.8 months, respectively, while those in non-LSPH group were $22.6{\pm}1.4$ months and 18.4 months, respectively(P<0.05). Conclusions: Radical operations for pancreatic cancer and secondary LSPH are safe and effective. Because high-grade malignancy and poor prognosis are closely associated, the decision for radical surgery should be made more meticulously for the patients with pancreatic cancer.

항공여객 특성분석을 통한 환승시설·서비스 및 환승투어 만족도 제고 연구 (A Study for Increasing Satisfaction of Transfer Facilities, Services & Transit Tour by Analyzing Air Passengers' Behaviors)

  • 김광옥;김기웅;김광일;김남선;박성식
    • 한국항공운항학회지
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    • 제23권2호
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    • pp.89-97
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    • 2015
  • The volume of transfer passengers now faces a crisis because the number of Chinese and Japanese passengers, the majority of transfer through Korea, is decreasing. This paper is analyzing the their air travel behaviors as well as characteristics of their transfer behaviors at airport. According to the research, it is suggested that transfer passengers perceive the importance of duty-free stores but their satisfaction of using duty-free stores during their transfer at Icheon airport was proven to be low. Considering the characteristics of transfer service quality at Incheon airport, waiting time of transfer is important but not satisfactory for them. Moreover, information of free transfer tour to city downtown and paid-in transfer tour for medical tourism is not known very well among North East Asian passengers. Thus, it is necessary to do detailed research of North East Asian transfer passengers, who have transferred through Incheon airport more than twice a year, to find out their exact needs of transfer tour in Korea.

국적항공사 외국인 객실승무원의 직무적응에 관한 실증연구 (An Empirical Research on the Job Adaptation of Foreign Cabin Crews in a National Carrier)

  • 장지승;이남령;김태준;김승복
    • 한국항공운항학회지
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    • 제20권3호
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    • pp.76-89
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    • 2012
  • The number of foreign cabin crews consist of 7% of total crews in K-airline, of which Chinese crews are of 38%. The number of foreign crews are 433 from 10 countries as of the end of July 2012. The airline has continued to hire foreign cabin crews to increase efficiency of human resourcing qualified flight attendants. This paper tried to do empirical research through SEM(Structural Equation Model) to overview confirmatory factors and course effects integrally. Cultural stress, aggressive coping, social support and job adaption have been chosen to be a factors. Especially, the SEM was set to show indirect effects of cultural stress and aggressive coping through social support to the dependant variable, job adaptation. According to the analysis result, cultural stress has a direct negative effect on job adaptation. Aggressive coping has also a direct positive effect on job adaptation. It has also proven cultural stress and aggressive coping has a indirect effect to job adaptation through social support. This paper is expect to contribute to develop such training and administrative programs as enhancing foreign crews' job adaptability and managing them effectively.

중국 도·농 간 소득격차에 영향을 미치는 요인 (Factors Effect on Income-Gap Between Urban and Rural Area in China)

  • 남설봉;나승화
    • 한국프랜차이즈경영연구
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    • 제6권1호
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    • pp.21-41
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    • 2015
  • The purpose of the study is to review the real situations of the income-gap between urban and rural areas which is focused on as one of the biggest issues revealed in the process of Chinese economic development and to find out which factors will alleviate or deteriorate such income-gap, also to find out such factors will effect differently on the regional characteristics. To analyze it, six factors such as industrialization-ratio, urbanization-ratio, tertiary industry-ratio, the level of both governmental educational support and agricultural support, and Chinese dual-economic structure are considered as explanatory variables, and OLS regression analysis was implemented to the factor data for the period of 1986-2007 about Chinese 31 districts(castles and cities). The results of the analysis show that both industrialization factors and urbanization factors affect significantly to alleviate income-gap between urban and rural areas, and as predicted, they also shows that dual-economic structure between urban and rural areas is the most biggest factors to enlarge the above mentioned income-gap. However, in accordance to the different level of economic development in eastern, central, and western districts the study shows that such factors will affect them differently respectively. The contents are as follows; In eastern district governmental educational support factor will affect the most great influence to alleviate the income-gap, in central district industrialization factor will affect the most great influence to alleviate the gap, and western district governmental agricultural support factor will affect the most great influence to alleviate the gap. Therefore, in solving the issue of income-gap between urban and rural areas in China we recommend that it is necessary for more differential policy in considering regional characteristics than unilateral policy to Chinese whole areas.

중국 상위 20위 항공사의 탈 집중화 현상에 대한 종단적 연구 (A Longitudinal Analysis of Deconcentration Process for the Top 20 Airlines in China)

  • ;여기태
    • 디지털융복합연구
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    • 제18권6호
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    • pp.65-79
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    • 2020
  • 중국 경제의 빠른 발전과 더불어 운송 서비스의 가장 중요한 역할을 하는 항공산업은 상당한 발전을 이루고 있다. 이러한 성장에도 불구하고 중국 항공산업에서 상위 항공사만을 대상으로 발전과정을 연구한 논문은 제한적이다. 이러한 측면에서 본 연구에서는 2009년에서 2018년 기간 동안 중국 상위 20위 항공사의 종단적 발전상황에 대한 실증적 연구를 수행하는 것을 연구의 목적으로 하였다. 연구의 방법은 집중도 분석, 허핀달-허쉬만 분석, 지니계수 분석, 전이할당 분석을 활용하였으며, 분석 자료는 물동량 및 여객수를 활용하였다. 집중도 분석, 허핀달-허쉬만 분석 및 지니계수 분석결과, 중국항공사는 탈 집중화 현상을 보이는 것으로 나타났다. 절대성장치 분석결과 중국 항공산업은 여객측면에서는 상위 4개의 항공사가 선점하고 있는 것을 확인할 수 있다. 향후연구에서는 여객 및 화물운송의 틈새시장을 찾는 성장전략 모색이 필요하다.

Research on Key Technologies of UAV Remote Sensing Operation Systems

  • Yan, Lei;Lu, Shuqiang;Zhang, Xuehu;Zhao, Hongying;Yang, Shaowen;Zhao, Jicheng;Li, Peijun;Wang, Kedong;Yao, Yuanhong
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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    • pp.1377-1379
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    • 2003
  • Satellite and aerial remote sensing (RS) techniques have been provided to collect spatial data globally over the last few decades. However in developing countries such as China, there is still an urgent need for low cost and high resolution RS data. As an emerging RS platform, commercial Unmanned Aerial Vehicle (UAV) integrated with state-of-the-art sensors and information technologies has the potential to become a low cost tool to meet application demands. In this paper, the architecture of UAV RS operation system is mentioned. Moreover, key technologies in UAV RS system are analyzed and current work is reported.

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중국 항공운송법의 현황 및 주요내용과 앞으로의 전망 : 항공운송인의 책임을 중심으로 (Liability of Air Carrier and its Legislative Problems in China : Some proposals for its Amendments)

  • 이화
    • 항공우주정책ㆍ법학회지
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    • 제26권1호
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    • pp.147-176
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    • 2011
  • 급속히 성장하고 있는 민용항공운송업의 발전과는 달리 중국의 현행 항공운송법은 상당히 원칙적이고 추상적으로 규정되어 있어 항공운송과 관련하여 일어나는 분쟁에 적용하는데 있어서 많은 어려움을 겪고 있다. 또한 여러 부문규장에 산재하는 운송관련 규정들은 항공운송법 체계의 혼란과 비통일성을 가져다주었다. 이는 중국항공운송업의 진일보의 발전을 저애한다. 이와 같은 점을 고려하여 이 논문에서는 항공운송인의 책임 제도를 중심으로 중국 항공운송법의 법체계와 주요내용들을 살펴보았다. 중국민항법과 국무원 산하의 민용항공총국에서 제정 및 반포한 부문규장에 산재되어 있는데 법체계는 운송인 책임기간, 책임부담의 범위, 책임배상한도액 및 예외, 책임부담의 원칙, 운송인의 면책사유, 이의제출기한, 법의 적용, 관할법원, 소송시효에 관한 중국 법규정을 분석 소개하였다. 이어서 중국법원에서 다룬 실제사건과 결부하여 중국항공운송법 상의 문제점들을 구체적으로 점검하고 법 개정의 필요성과 앞으로의 전망을 제시하였다. 앞으로 중국 항공운송법을 개정함에 있어서 운송인책임과 관련하여 우선 먼저 운송인의 배상책임한도액을 상향조정해야 한다. 둘째로 국내항공운송과 국제항공운송 구분이 없이 운송인의 배상책임한도액을 제정함이 바람직하다. 셋째로 항공기연착에 관한 법 규정을 보완해야 한다. 넷째로, 민항법과 관련 부문규장에서 여객에 대한 운송인의 정신적 손해배상 내용을 명확히 할 필요가 있으며 법원은 향후 항공운송분쟁에 관한 분쟁에서 정신적 손해배상청구가 있는 경우 고려요소, 배상금 금액의 산정 등 기준을 판결문에서 명확하고 자세하게 밝히는 것이 바람직하다.

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국내·외 학생조종사들의 비행훈련 학습양식 비교 연구: Kolb 학습양식 모델을 적용하여 (A Comparison Study of College Student Pilots' Learning Styles in Flight Training School: applying Kolb's Learning Style Model)

  • 황재갑;이근영;윤한영
    • 한국산학기술학회논문지
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    • 제22권1호
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    • pp.197-207
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    • 2021
  • 국내 대학 부설 비행훈련원의 학생조종사를 대상으로 Kolb 학습양식을 분석하였다. 그 결과 자기 주관적으로 해석하고 의미를 부여하며, 다양한 생각과 상상력이 풍부한 학습양식인 확산자 학습양식으로 비행훈련과정에 입과(100%)하여 학년이 올라가면서 조절자(11.1%)나 융합자(15.9%) 학습양식으로 일부 전이가 일어나나 비율이 낮고 4학년이 되어도 대부분(71.4%) 확산자의 학습양식을 가진 것으로 조사되었다. 미국 학생조종사의 경우, 1학년에 융합자(35.5%)와 수렴자 학습양식(24.3%)이 다수를 차지하고 고학년이 될수록 엔지니어 또는 기술자에게서 나타나는 수렴자의 비중이 확대되었다. 중국 학생조종사의 경우는 1학년에서는 융합자(41.5%)와 수렴자(28.4%)가 대부분이었으나, 고학년이 될수록 융합자와 수렴자의 비중이 감소하고 우리나라와 유사한 확산자의 비중이 급격하게 증가하는 것으로 나타났다. 4학년의 경우, 조절자는 1학년과 비슷한 수준이나 융합자는 지속적으로 감소(1학년 41.5%, 4학년 27.0%)하는 것으로 확인되었다. 국내 학생조종사의 학습양식이 엔진니어나 기술자에게서 주로 나타나는 학습양식인 수렴자가 아닌 확산자 학습양식이며 4년 동안 학습양식의 변화가 없게 분석되었다. 향후 국내 비행훈련원 비행훈련 과정의 제도적 개선이 필요할 것으로 사료된다.

Qualitative and quantitative analysis of furosine in fresh and processed ginsengs

  • Li, Yali;Liu, Xiaoxu;Meng, Lulu;Wang, Yingping
    • Journal of Ginseng Research
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    • 제42권1호
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    • pp.21-26
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    • 2018
  • Background: Furosine (${\varepsilon}$-N-2-furoylmethyl-L-lysine, FML) is an amino acid derivative, which is considered to be an important indicator of the extent of damage (deteriorating the quality of amino acid and proteins due to a blockage of lysine and a decrease in the digestibility of proteins) during the early stages of the Maillard reaction. In addition, FML has been proven to be harmful because it is closely related to a variety of diseases such as diabetes. The qualitative analysis of FML in fresh and processed ginsengs was confirmed using HPLC-MS. Methods: An ion-pair reversed-phase LC method was used for the quantitative analysis of FML in various ginseng samples. Results: The contents of FML in the ginseng samples were 3.35-42.28 g/kg protein. The lowest value was observed in the freshly collected ginseng samples, and the highest value was found in the black ginseng concentrate. Heat treatment and honey addition significantly increased the FML content from 3.35 g/kg protein to 42.28 g/kg protein. Conclusion: These results indicate that FML is a promising indicator to estimate the heat treatment degree and honey addition level during the manufacture of ginseng products. The FML content is also an important parameter to identity the quality of ginseng products. In addition, the generation and regulation of potentially harmful Maillard reaction products-FML in ginseng processing was also investigated, providing a solid theoretical foundation and valuable reference for safe ginseng processing.