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Varietal Differences of Leaf Senescence and Photosynthate Translocation Rate During Grain Filling Period in Barley (대맥의 등숙기간중 엽신의 노화와 동화산물전류의 품종간 차이)

  • 남윤일;구본철;연규복
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.36 no.2
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    • pp.166-173
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    • 1991
  • In order to determine the relationships between the rates of leaf senescence and photosynthate translocation during the grain filling periods in barley, field experiments were conducted through 1989/1990 crop year. Thirty barley varieties and lines having different leaf senescence were used for the experiments. Varieties differed significantly in the rate of leaf senescence and rate of grain filling. The rate of leaf senescence at early (10-20days after heading) and late period (20-30days after heading) during of grain filling were positively correlated with the rate of grain filling in same period, respectively. But the rate of leaf senescence at 10-20 days after heading negatively correlated with the rate of grain filling during the whole grain filling period (10-35 days after heading). Whereas, the rate of leaf senescence at late period was positively associated with the rate of grain filling during the whole grain filling period. Rates of grain filling at the late and whole periods have positively influence on grain weight(r=0.62**~-0.93**), but rate of leaf senescence at early period and duration of grain filling negatively correlated with the grain weight (r=-0.33~ -0.15). The patterns of leaf senescence index for the varieties tested were grouped by four. Among these patterns, the most ideal pattern was IV type.

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Measurement for the Tuning Circle of the Stern Trawler HAELIM-3 by the Differential GPS (DGPS에 의한 선미트롤선 해림 3호의 선회권측정)

  • Choi, Jae-Eun;Kim, Jin-Kun;Kim, Ki-Yun
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.31 no.1
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    • pp.84-92
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    • 1995
  • The methods by turning circle test and maneuvering indices have been used to study and evaluate the maneuverability of a ship. However recently many studies utilizing the GPS are made on the measurement of the turning circle and in the fishery and hydrographic survey. In this paper, the author carried out the turning circle test using the differential GPS and dumb card together, and compared the data measured by them and analyzed the accuracies of them to obtain the utility basic ones on the measurement of the turning circle by the DGPS. The main results area s follows : 1) To check the accuracies of the GPS, the circling experiments of 50m radius by the DGPS were made on the ground. The accuracies of turning circle measured by the DGPS were found to be very high as the errors of 1.5m. 2) the turning circle by the DGPS could be measured very accurately, by the seed, rudder angle, starboard and port respectively. 3) The turning circle measured by the dumb card was found to be measured accurately as much as the DGPS, when using large rudder angle, the turning circle was large, the turning circle by the dumb car could not be measured accurately on account of large error of bearing of compass. 4) The tactical diameters by the DGPS in case of the rudder angle 35。~5。, were found to be 2.6。15.0 times the Lpp of S.T HAELIM-3 at her slow speed 2.8~16.6 times her Lpp at her half speed, 3.1~17.4 times her Lpp at her full speed. The tactical diameter by the dumb card was found to be 2.4~9.5 times, 2.6~9.6 times, 3.2~12.2 times her Lpp respectively, in the above case and speed.

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A Study on the Remote Control System for Outboard Engine (선외기 원격제어시스템에 관한 연구)

  • An, Byeong-Won;Jeong, Gap-Dong;Kim, Hyeon-Su;Bae, Cheol-Oh
    • Proceedings of KOSOMES biannual meeting
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    • 2006.11a
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    • pp.71-74
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    • 2006
  • Currently offshore fisheries are one of shrinking industries and fishermen are getting older. Moreover it is difficult to work fisheries for decreasing fishermen as the time goes. Two people per a boat work together at least for proper fisheries. If the unskilled fisherman boards on boat, it will make some troubles to speak each other and diminish the efficiency of working because one person should control the boat. So it need to study the remote control system for leasure and outboard engine that can control and work at the same time. The remote control system is consisted of engine revolution, steering gear and forward reverse neutral gear controls. These three controls are made by position and speed control using DC motor, and microprocessor is used to communicate and control the engine speed This system can be controled and worked alone and we tested the system at sea and confirmed that the system works properly.

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Relationship of Salesperson's Lifestyle, Selling Behaviors and Job Satisfaction in Retailing (소매점 판매원의 라이프스타일 및 판매행동과 직무만족 간의 관계)

  • Kang, Kuk-Koo;Chun, Myung-Hwan
    • The Journal of the Korea Contents Association
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    • v.7 no.8
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    • pp.245-254
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    • 2007
  • The purpose of this study is to analyse the effects of salesperson's lifestyle, selling behaviors on strategic management of salesperson. So this study not only examines differences in the salesperson's lifestyle, selling behaviors and job satisfaction but also analyses the impact of salespersons' lifestyle and selling behaviors on job satisfaction. The results of this study are summarized as follows. First, the result of analyzing differences in the lifestyle according to the characteristics of sex, age, academic background income is no significant difference. Second, the result of analyzing differences in the selling behavior according to the characteristics of sex and marriage is significant difference. Third, the result of analyzing differences in the job satisfaction according to the characteristics of store type is significant difference. Salesperson working at the exclusive agencies is most high job satisfaction. According to the result of examining the relationship between salespersons' lifestyle and the selling behaviors, job-oriented lifestyle has positive effects on the customer orientation and hospitality orientation. Finally salespersons' job satisfaction is positively affected by the job-oriented lifestyle and hospitality-orientation selling behavior.

Development Direction, Actual Condition and Location of the Auto Industry in Jeon-Buk Province (전북지역 자동차산업 입지와 지역산업 실태 및 발전방향)

  • 문남철
    • Journal of the Economic Geographical Society of Korea
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    • v.7 no.2
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    • pp.261-281
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    • 2004
  • The location of auto industry in Jeon-buk is due to the strategies for secure a low-priced industrial site of the auto assembly companies, which attained to quantitative growth stage in the early part 1990's, and the regional balanced development policy by the location of leader enterprise of the government. As a consequence of the reversal development pattern that is located the auto parts firm after locating the auto assembly companies, the Jeon-buk auto industry has many structural vulnerability. First, because of the lack development of auto parts industries, the auto assembly companies located in Jeon-buk are dependent many auto parts at a external region. Second, most of auto parts firm belongs to the singular assembly company exclusively. And the majority of auto parts industries are the low value-added products that are necessary a simple labor power. Third, the agglomeration undeveloped of associated industries with automobile caused a low competitiveness of invitation a manufacturing company as against other provinces. For a regional economic development by the auto industry, it is necessary a flexible regional structure of production through an agglomeration of associated industries. The geographical proximity between an assembly company and a parts firms is an important locational factor with the induction of Just-in-Time production system and a modularization in the auto industry. And a modularization applies to more new factory than the existing factories. So that, Jeon-buk self-government has to create an amicable industrial environment, try to attract an auto parts enterprises and plan an agglomerated industrial complex that is able to supply a parts modulated to assembly company.

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A Study on the Relation among MBTI Personality Types, Job Satisfaction, Customer Orientation, and Willingness to Change Job (MBTI 성격유형, 직무만족, 고객지향성 및 이직의도 간의 관계에 관한 연구 - 영남지역 H사 보험설계사를 대상으로 -)

  • Kang, Min-Jeong;Park, Ju-Sik
    • Management & Information Systems Review
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    • v.36 no.5
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    • pp.151-173
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    • 2017
  • This study examined the relation between MBTI personality types and job satisfaction, job satisfaction's effect on the customer orientation and willingness to change job and MBTI personality types's moderating effect on the relation among job satisfaction customer orientation, willingness to change job. Research results are as following. First, MBTI personality types didn't influence job satisfaction significantly. Second, job satisfaction affected customer orientation positively and willingness to change job negatively. Finally, MBTI personality type's moderating effect was analysed using Psychological Function and Attitude Index. Moderation effect of Psychological Function was significant only on the relation between job satisfaction and customer orientation. Moderation effect of Attitude Index was significant both on the relation between job satisfaction and customer orientation and the relation between job satisfaction and willingness to change job. These results of current study can be useful to recruit, organize, educate life planners based on the personality types of MBTI. And the applicability of MBTI test will increase by using these results.

Enjoyment Methods of Traditional Theater Performances in the Early 20th Century (20세기초 극장무대 전통공연물의 향유방식)

  • Jeong, Choong-Kwon
    • Journal of Korean Classical Literature and Education
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    • no.38
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    • pp.103-138
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    • 2018
  • This study examines the modern succession, transformation and significance of enjoyment methods of classical literature (art) with a focus on the characteristics of those methods that appeared when the performances of the traditional era began to be displayed on the stage of the theaters in modern Seoul. The clues to the reasons for this type of enjoyment can be found in newspapers, magazine articles, and advertisements from the early 20th century. The emergence of stage theaters at the beginning of the modern era caused a sweeping change in the performance environment, including the fact that it was possible for all kinds of people to enjoy art beyond the existing socioeconomic hierarchies or barriers of status, that the performers were given employment through the theater, and that the audience had the tendency of the general public of an unspecified number because the audience was able to see the performances only by paying the viewing fee. The way of enjoying traditional performances also changed based on these new adaptations: the performances were sequential, show-oriented, and re-contextualized as public performances. It is significant that in the traditional era, performers and audiences had been segregated according to their status and a strict hierarchy; now, such cultural norms were breaking down in favor of a kind of equality. In addition, it was possible for the audience to experience sensory enjoyment, and theater brought about a new kind of popular consumer enjoyment of an artistic product. Of course, though, it is possible to look back and find problems related to the contemporary context, but the traditional performances, which were the main performances for the lower class, took the first place on the modern theater stage, and as a result, no one can deny that it became possible to move forward in the first phase of an era of public performance.

Learning from the Licensing and Training Requirements of the USA Private Security Industry : focused on the Private Security Officer Employment Authorization Act & California System (미국의 민간경비 자격 및 교육훈련 제도에 관한 연구 - 민간경비원고용인가법(PSOEAA) 및 캘리포니아 주(州) 제도 중심으로 -)

  • Lee, Seong-Ki;Kim, Hak-Kyong
    • Korean Security Journal
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    • no.33
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    • pp.197-228
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    • 2012
  • The private security industry in Korea has rapidly proliferated. While the industry has grown quickly, though, private security officers have recently been implicated in incidents involving violence, demonstrating an urgent need for systematic reform and regulation of private security practices in Korea. Due to its quasi-public service character, the industry also risks losing the public's favor if it is not quickly disciplined and brought under legitimate government regulation: the industry needs professional standards for conduct and qualification for employment of security officers. This paper shares insights for the reform of the Korean private security industry through a study of the licensing and training requirements for private security businesses in the United States, mainly focusing on the Private Security Officer Employment Authorization Act (hereinafter the PSOEAA) and the California system. According to the PSOEAA, aspiring security officers shall submit to a criminal background check (a check of the applicants' criminal records). Applicants' criminal records should include not only felony convictions but also any other moral turpitude offenses (involving dishonesty, false statement, and information on pending cases). The PSOEAA also allows businesses to do background checks of their employees every twelve months, enabling the employers to make sure that their employees remain qualified for their security jobs during their employment. It also must be mentioned that the state of California, for effective management of its private security sector, has established a professional government authority, the Bureau of Security and Investigative Services, a tacit recognition that the private security industry needs to be thoroughly, professionally, and actively managed by a professional government authority. The American system provides a workable model for the Korean private security industry. First, this paper argues that the Korean private security industry should implement a more strict criminal background check system similar to that required by the PSOEAA. Second, it recommends that an independent professional government authority be established to oversee and enforce regulation of Korea's private security industry. Finally, this article suggests that education and training course be implemented to provide both diverse training as well as specialization and phasing.

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Differences of Germination and Emergence rate among Isogenic Lines of Waxy and Hulless Gene Combinations in Barley (보리의 찰ㆍ메 및 피ㆍ과성 동질유전자 계통내 발아 및 출아율 차이)

  • Nam, Jung-Hyun;Lee, Eun-Sup;Lee, Choon-Ki;Ha, Yong-Woong
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.38 no.1
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    • pp.46-54
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    • 1993
  • On the purpose to increase the cultivation stability of the hulless waxy barley which is unstable in the northern region of Korea, the effects of genes of hulled /hulless and waxy /nonwaxy on seedling emergency was studied by using four isogenic lines of hulled -waxy, hulless -waxy, hulled -nonwaxy and hulless -nonwaxy barley. The germination rates of hulless lines lowered by four to six percent compared with those of hulled counterparts with one day's rainfall just before harvest, and were much deteriorated with raining prolonged. The gaps between emergency rates of hulless lines and their counterparts were greater than those of germination rates, and the differences increased as the seeding depths were deepened. The emergency rates of hulless lines were affected in the order of seeding depth, rotation speed of thresher and preharvest rainfall. Waxy endosperm gene did not show any significant effects on the damage of grain during threshing. It seems that the embryos of hulled lines were less damaged than those of hulless ones during threshing due to the protecting effects by husks. When grains were threshed with thresher of 600rpm or 900rpm and dehulled with dehuller of 750rpm, any significant depreciations such as broken seeds and decreased germination rate did not occured in hulled lines. But the grains of hulless lines received some damages with the rotation speeds, especially germination rates decreased seriously when the rotation speed of de huller was high. Prehavest sprout rates of the lines incorporated with the waxy genes were higher than those with nonwaxy genes whereas the genes of hulled and hulless did not give any significant effects.

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U.S. Admiralty Jurisdiction over aviation claims (항공사고에 관한 미국 해사법정관할)

  • Lee, Chang-Jae
    • The Korean Journal of Air & Space Law and Policy
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    • v.31 no.2
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    • pp.3-35
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    • 2016
  • The United States Constitution gives power to the federal district courts to hear admiralty cases. 28 U.S.C. §.133, which states that "The district courts shall have original jurisdiction, exclusive of the Courts of the States, of any civil case of admiralty or maritime jurisdiction." However, the determination of whether a case is about admiralty or maritime so that triggers admiralty jurisdiction was not a simple question. Through numerous legal precedents, the courts have drawn a line to clarify the boundary of admiralty cases. This unique jurisdiction is not determined by the mere involvement of a vessel in the case or even by the occurrence of an event on a waterway. As a general rule, a case is within admiralty jurisdiction if it arises from an accident on the navigable waters of the United States (locus test) and involves some aspect of maritime commerce (nexus test). With regarding to the maritime nexus requirement, the US Supreme Court case, Executive Jet Aviation, Inc. v. City of Cleveland, held that federal courts lacked admiralty jurisdiction over an aviation tort claim where a plane during a flight wholly within the US crashed in Lake Erie. Although maritime locus was present, the Court excluded admiralty jurisdiction because the incident was "only fortuitously and incidentally connected to navigable waters" and bore "no relationship to traditional maritime activity." However, this historical case left a milestone question: whether an aircraft disaster occurred on navigable water triggers the admiralty jurisdiction, only for the reason that it was for international transportation? This article is to explore the meaning of admiralty jurisdiction over aviation accidents at US courts. Given that the aircraft engaged in transportation of passenger and goods as the vessels did in the past, the aviation has been linked closely with the traditional maritime activities. From this view, this article reviews a decision delivered by the Seventh Circuit regarding the aviation accident occurred on July 6, 2013 at San Francisco International Airport.