• 한국도로학회논문집
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• 제20권4호
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• pp.73-84
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• 2018

PURPOSES : Most of the traffic surveys are carried out by an inspection method by the manpower. In some cases, the video equipment is used only in some regions when the traffic volume is surveyed. In this case, there is environmental restriction that the road equipment to fix the video equipment should exist. Also, in areas where information such as digital maps and satellite photographs is old or not provided, they are forced to rely on manpower research, but it is difficult to put huge amounts of time and money into the research in places where labor supply and demand is difficult. This difficulty is particularly pronounced in overseas business. METHODS : The purpose of this study is to improve the efficiency of business by using the drones in the traffic investigation through analysis of the cost reduction effect between the existing method and the proposed method in the overseas business traffic survey. The scope of the research is limited to the scope of research, and based on the case of overseas projects, the method of using drone for each research sector is suggested. RESULTS : In the traffic condition survey section, we propose the use of drone for traffic survey and queue length survey, and it is confirmed that there is a cost saving effect of 16% ~ 27% compared with the existing method. In the road condition survey, we propose the use of drones for road surface linear survey, geometry survey, and obstacle survey, and it was confirmed that the cost reduction effect is 39% ~ 93% compared to the existing method. CONCLUSIONS : In addition to overseas business, it is expected that it will have a positive effect on research time and cost reduction by using drone in traffic survey in domestic area where labor supply is not easy or basic data is insufficient.

• 한국조사연구학회지:조사연구
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• 제1권1호
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• pp.73-108
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• 2000

사이버공간이 독특한 사회적 공간으로 자리잡고 이에 대한 경험적 자료의 필요성이 중대됨에 따라 컴퓨터 통신망을 이용한 사회조사가 늘어나고 있다. 본 연구는 사이버공간이 보여주는 기술적 기능성을 방법론적으로 검토해 봄으로써 온라인 사회조사의 발전가능성을 탐색하고 있다. 온라인 사회조사는 표집틀, 응답자 접촉방식, 질문지 형태 등에 따라 회원 조사, 방문자조사, 전자우편조사, 전자설문조사로 구분될 수 있으며 기존의 조사방법에 비하여 조사비용의 저렴하고 조사의 실행이 용이하다는 특징을 가지고 있다. 그러나 체계적 오차와 관련하여 온라인 사회조사는 표본설계(모집단의 규정, 표집틀 오차, 추출오차), 측정(측정도구의 구성, 시스템의 안정성과 충실성, 비 응답 및 응답오차) 조사윤리의 측면에서 많은 과제를 안고 있다. 이러한 방법론적인 쟁점에 대한 충분한 고려가 이루어질 때 온라인 사회조사는 본격적인 조사연구의 한 방법으로 자리잡을 수 있을 것이다.

• Nuclear Engineering and Technology
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• 제47권7호
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• pp.939-944
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• 2015

The calibration methods of neutron-measuring devices such as the neutron survey meter have advantages and disadvantages. To compare the calibration factors obtained by the shadow cone method and semi-empirical method, 10 neutron survey meters of five different types were used in this study. This experiment was performed at the Korea Atomic Energy Research Institute (KAERI; Daejeon, South Korea), and the calibration neutron fields were constructed using a $^{252}Californium$ ($^{252}Cf$) neutron source, which was positioned in the center of the neutron irradiation room. The neutron spectra of the calibration neutron fields were measured by a europium-activated lithium iodide scintillator in combination with KAERI's Bonner sphere system. When the shadow cone method was used, 10 single moderator-based survey meters exhibited a smaller calibration factor by as much as 3.1-9.3% than that of the semi-empirical method. This finding indicates that neutron survey meters underestimated the scattered neutrons and attenuated neutrons (i.e., the total scatter corrections). This underestimation of the calibration factor was attributed to the fact that single moderator-based survey meters have an under-ambient dose equivalent response in the thermal or thermal-dominant neutron field. As a result, when the shadow cone method is used for a single moderator-based survey meter, an additional correction and the International Organization for Standardization standard 8529-2 for room-scattered neutrons should be considered.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2009년도 춘계 학술발표회
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• pp.961-965
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• 2009

Using much electric resistivity survey to design or preservation administration of facilities. However, By survey method that electric resistivity survey grasps special quality in base by potential difference creating artificial current in underground, Is influenced in electric resistance propensitys of various underground utilities in base. This Study selects dam 1 place that could grasp well underground situation and studied electricity interference effect by effect of underground utilities. Grasp underground utilities of dam interior, and control and observed accuracy with survey wave because various pole space. Through this Study, wish to present survey method of electric resistivity survey at design or survey of preservation administration dimension after with drawn result.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2002년도 추계학술대회 논문집 전력기술부문
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• pp.259-261
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• 2002

KEPCO(Korea Electric Power Corporation) has been management alone before some time. However through the electrical industry reorganization generation and KPX(Korea Power Exchange) were separated on 2001. A marketing and distribution part will be separated in the future. While many problem for appear in future. how to management for power system network is important. unfortunallity, electrical power industry is starting point right now. Thus, detail data is incomplete for this field and detail research for this field is required with distribution reorganazation. In this paper suggest for customer interruption cost compute method to establish a standard. The standard is need to security operation of power system network. The customer interruption cost compute method necessity of customer interruption cost compute method is minimizing process for total cost. As final total cost compute through the interruption cost compute, we can recognize investment point exactly. We cited foreign survey questions, because exactly matched survey questions for in the country circumstance is not exist. And process to survey performance suggest after modify for match in the country circumstance. Survey questions that suggested fer this paper are classified five categories. This paper suggests to detail survey questions and survey method before survey and suggest to how to customer interruption compute when survey data is ensured. Moreover this paper suggest to average interruption cost compute for residential customer using statistical method.

• 한국조사연구학회지:조사연구
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• 제10권2호
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• pp.137-161
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• 2009

최근의 조사환경은 많이 악화되는 추세이다. 일인 가구와 맞벌이 가구가 증가하면서 조사원이 조사가구를 방문했을 때 응답자를 만나기는 쉽지 않다. 개인의 비밀보호에 대한 인식의 변화도 통계조사에 쉽게 응답하지 않는 원인이 되고 있다. 조사에 불응하거나 만나기 어려운 응답자들을 대상으로 조사를 실시하기 위하여 통계청에서는 기존의 면접조사 틀에서 벗어난 여러 조사방법을 모색하고 있다. 공식적으로 면접조사를 실시하고 있는 조사에서 일부는 전화조사를 허용하고 있으며, 인터넷조사로 전환하기 위한 연구도 많이 하고 있는 실정이다. IT기술을 접목한 조사방법에는 많은 장점이 있고 우리나라는 이미 세계적인 IT기술 강국이다. 이러한 우리나라의 IT환경을 조사방법에 잘 적용할 수 있다면 조사품질의 향상에 많은 기여를 할 것으로 보인다. 본 연구에서는 IT기술을 이용한 조사방법을 중심으로 조사환경의 변화에 부응하는 적절한 국가통계 조사방법을 제시하고자 한다.

• 한국조사연구학회지:조사연구
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• 제10권2호
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• pp.115-136
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• 2009

본 논문은 군 조직을 대상으로 한 그간의 조사연구의 흐름을 살펴보고 군의 주요한 특징인 계급구조에 입각한 조사연구의 방향과 대안을 모색하였다. 군을 대상으로 한 조사연구는 제반조사환경의 제약으로 인해 조사연구 결과의 신뢰성을 확보하고 다양한 주제에 대한 함의를 제공하는 데 많은 제한이 있었다. 본 연구에서는 군 조사과정 및 결과에 중요하게 영향을 미치는 군의 위계적 계급구조의 특성을 입체적으로 파악한 뒤, 조사목적에 부합한 조사기획 및 분석방안을 도출하였다. 군 조사연구의 향후 개선방향은 군 계급구조의 특성을 고려한 군 조사기법의 정교화와 분석방법론의 다차원화로 구분하여 제시하였다 구체적으로 조사방법 및 조사과정을 보다 치밀하게 설계하여 조사를 실시하고 다양한 요인을 분석할 수 있는 다차원의 분석방법론을 개발, 적용하는 것이 필요함을 주장하였다.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2008년도 춘계 학술발표회 초청강연 및 논문집
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• pp.697-703
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• 2008

Excessive water leakage phenomenon happens through damage of nation core zone of about 17,000 storage of water facilities or collapse of dam is worried, is being damaged or enforce dilapidated fill dam core zone's repair reinforcement. Example that use grouting method of construction considering construction and economic performance etc. recently by repair reinforcement way about defect of dam is increased. Permeation grouting method repair & reinforcement of fill dam countermeasure is preferred in nation. Do that is economical to decide these repair reinforcement effect and grouting effect estimation method that do not give damage to dam is effective. Therefore, observing electricity resistivity Survey change of dam since grouting reinforcement using Electric resistivity Survey inquiry of seismic survey method in this research, Wished to verify grouting effect whether is possible as Electric resistivity Survey, and study whether integrity of dam through repair reinforcement defined.

• Asian Journal for Public Opinion Research
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• 제1권1호
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• pp.26-41
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• 2013

The rise and fall of social research methods rely on how much a certain method is able to appropriately reflect the change of society. The present research proposes new mobile surveying methods, considering the current and future trends in Korea. In particular, this research focuses on environmental pressure (time constraints, the presence of others and the place) as one of the major factors influencing the effects of survey modes. For example, landline surveys are conducted in the respondent's home, which is a private and fixed space. On the other hand, surveys on mobile phones can be conducted in diverse places with other people around. After sampling 500 landline respondents and 500 mobile phone respondents using a quota method, the same questionnaire was used for both the mobile and landline interviews. The findings are generally consistent with the literature supporting the data quality and comparability of the mixed mode survey. These results are encouraging for researchers designing surveys that feature mobile phone data collection.

• 한국의사학회지
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• 제18권1호
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• pp.89-101
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• 2005

Obejectives : This survey was accomplished to find out how Korean medical doctors think that the recognition regarding the Korean acupuncture method and research direction Methods : The survey questions were developed by the consensus from the professors who major in acupuncture and moxibustion. The questionnaire was given the 2731 Korean medical doctors at the mending education site; In addition, it was given to 793 doctors working at the 105 Korean medical hospitals listed on the National Korean Medical Hospital Associations Address book by postal mail; and also it was given to the 142 public health care Korean medical doctors who attended the conference for the municipal and provincial representatives of the public health service Korean medical doctors. Total of 1277 questionnaires were retrieved out of the 3666 subjects. Results : 1. Eleven hundred eighth seven out of 1277 Korean medical doctors think motion and bone and joint disease which has an effect in acupuncture treatment(92.9%) 2. Nine hundred fourteen out of 1277 Korean medical doctors used "Body acupuncture method"(71.5%) and 902 out of 1277 Korean medical doctors think of the korean acupuncture method which is "Sa Am acupuncture method"(70.6%) 3. Eight hundred forty out of 1277 Korean medical doctors want verification which leads a clinical research to know that acupuncturist have acupuncture and moxibustion treatment(65.7%). Conclusion : Korean medical doctors think motion and bone and joint disease which has an effect in acupuncture treatment Korean medical doctors most used "Body acupuncture method" but think of the korean acupuncture method which is "Sa Am acupuncture method". Korean medical doctors want verification which leads a clinical research to know that acupuncturist have acupuncture and moxibustion treatment.