Earticle

이 연구는 캠핑용품의 체험요인, 체험만족도, 그리고 행동의도간의 관계를 파악하여 최근 소비가 증가하고 있는 캠핑용품과 관련한 체험마케팅의 효과성을 파악하고 소비자의 관심을 지속적으로 유도할 수 있는 체험마케팅의 방안을 마련하는데 필요한 기초자료를 제공하는데 목적을 두었다. 이를 위해 체험형 캠핑용품판매점에서 구매한 사람을 모집단 으로 설정하고 서울 및 수도권에 위치한 8개의 대형 캠핑용품매장에서 체험 후 구매한 사람들을 대상으로 설문조사를 실시하였다. 배포한 설문지는 총 350부이며 이 중 334부를 최종분석에 활용하였다. 그 결과 첫째, 캠핑 용품의 체험 요소 는 체험 만족도에 긍정적인 영향을 미쳤다. 둘째, 캠핑 용품의 체험 요소는 행동 의도에 정적인 영향을 미쳤다. 셋째, 체험 만족도는 행동 의도에 긍정적인 영향을 미쳤다.

This study is to investigate the relationship between camping equipment experience factors, experience satisfaction, and behavioral intention. Through this, the purpose of the study was to identify the effectiveness of experiential marketing in relation to camping products that have recently increased consumption and to provide basic data necessary to prepare experiential marketing measures that can continue to interest consumers. To this end, a population of people who actually experience and purchase and use camping supplies stores was set, and a survey was conducted on those who experience and purchase supplies at 8 large camping supplies stores in Seoul and the metropolitan area. A total of 334 copies of data were obtained and the results were derived. As a result, first, the experience elements of camping supplies had a positive effect on experience satisfaction. Second, the experience factor of camping supplies had a static effect on the behavioral intention. Third, experience satisfaction had a positive effect on behavioral intention.

[목적] 본 연구는 인터넷과 SNS, 다양한 광고 속성들로 인해 골프용품에 대한 소비자의 행동을 확인하기 위해서 브랜 드가 갖는 인식과 태도를 파악하고 어떠한 요인에 의해 제품에 대한 충성도를 갖게 되는지를 분석하여 골프용품 웹 사이트 관리자의 운영에 필요한 기초자료를 제공하는데 그 연구의 목적이 있다. [방법] AMOS 24.0을 이용하여 확인적 요인분석과 구조방정식 모형분석을 통해 연구목적에 따른 가설들을 검증하였으며, 통계적인 유의 수준은 p<.05수준 으로 설정하였다. [결과] 첫째, 웹사이트 광고의 장소, 가격, 제품, 판매는 브랜드 태도에 정(+)의 영향을 나타냈다. 둘째, 웹사이트 광고의 제품, 판매는 충성도에 정(+)의 영향을 나타냈다. 셋째, 브랜드 태도와 충성도는 재구매에 정(+)의 영향을 나타냈다. [결론] 골프용품 웹사이트 광고는 소비자의 브랜드 태도와 충성도, 재구매 간의 긍정적인 관계를 형성하고 있으며, 소비자와 지속적인 관계를 유지하기 위해서는 웹사이트가 갖는 장점(장소, 가격, 제품, 판매)을 활용하는 노력이 필요하다. 이것이 웹사이트 운영자에게 경영상 중요한 역할을 할 것이며, 나아가 골프용품 시장의 변화를 이끌어 낼 것이다.

[Purpose] The purpose of this study is to provide basic data necessary for the operation of golf product website managers by identifying the brand's perception and attitude to check consumer behavior for golf products due to Internet, SNS, and various advertising attributes. [Method] Hypothesis verification for research purposes was conducted through confirmatory factor analysis (CFA) and structural equation model analysis (SEM) using AMOS 24.0, and statistical significance level was p<.It was set to level 05. [Result] First, the location, price, product, and sales of website advertisements showed a positive effect on brand attitude. Second, products and sales of website advertisements showed a positive effect on loyalty. Third, brand attitude and loyalty showed a positive (+) effect on repurchase. [Conclusion] Golf equipment website advertisements form a positive relationship between consumers' brand attitude, loyalty, and repurchase, and efforts are needed to utilize the strengths of the website (place, price, product, and sales) to maintain a continuous relationship with consumers. This will play an important role for website operators, and will further lead to changes in the golf goods market.

In this study, the structural analysis and welding performance experiments were performed to reduce the weight of the semi-automatic TIG welding device. The structural analysis based on finite element method was performed on the lightweight design of the wire feeder's main frame to evaluate the structural safety and straightness of the lightweight frame. To reduce the weight of the welding wire feeder, the step motor was changed to a servo motor and a pinion gear made of lightweight reinforced plastic material was applied. In addition, a new type of welding torch was developed to reduce the weight of the welding torch and to supply more effective fillers. As a result of performing the TIG welding experiment using a prototype of TIG welding device consisting of a lightweight frame, feeding device and welding torch, it was confirmed that the working criteria were satisfied in terms of welding speed, welding bead shape, feeding uniformity and torch durability. The developed lightweight TIG welding device is expected to improve welding productivity and work convenience.

Due to the larger and high-speed vessels recently constructed, output and speed of the engines for propulsion or power generation is increasing. These high-power and high-speed engine of the ship is becoming as a major contributor causing excessive noise and vibration. Other fittings as well as equipment installed on board, it makes equipment failure or other defect by resonance. This causes a lot of M/H(Man Hour) for repairs and the reliability of the company is invading even be negative because the clients give much comment. Thus, it's being studied for any fittings installed on board to maintain the safe operation and to prevent any problem during the performance in any operating conditions. In this study, it was investigated to solve these problems for the supports of the various fittings for easy installation-related support that each type of intensity and shape and manufacturing method using structural analysis program(DNV Nauticus Hull 3D Beam). Namely, it would be applied to the very large crude carriers in consideration of mechanics of materials of the support equipment by providing the fact that dynamics analysis of the structural characteristics of the equipment and the support of the production installation is easy and productivity can be high standards for geometry and thereby to simplify the analysis task to design changes at the same time and to minimize the reinforcement for the supports.

Background: In occupational studies, it is a known situation that technical and organizational attempts are used to prevent occupational accidents. Especially in the mining sector, if these attempts cannot prevent occupational accidents, personal protective equipment (PPE) becomes a necessity. Thus, in this study, the main objective is to examine the effects of the variables on the use of PPE and identify important factors. Methods: A questionnaire was implemented and structural equation modeling was conducted to ascertain the significant factors affecting the PPE use of mining employees. The model includes the factors that ergonomics, the efficiency of PPE and employee training, and PPE usage habit. Results: The results indicate that ergonomics and employee training have no significant effect (p > 0.05) on the use of PPE. The efficiency of PPE has a statistically meaningful effect (p < 0.05) on the use of PPE. Various variables have been evaluated in previous studies. However, none of them examined the variables simultaneously. Conclusion: The developed model in the study enables to better focus on ergonomics and employee training in the PPE usage. The effectiveness of a PPE makes its use unavoidable. Emphasizing PPE effectiveness in OHS training and even showing them in practice will increase employees' PPE usage. The fact that a PPE with high effectiveness is also ergonomic means that it will be used at high rates by the employee.

노후 공동주택의 수가 급격하게 증가하면서 주거 환경적인 문제, 구조성능의 저하, 설비의 노후화에 따른 성능저하등으로 인하여 노후 공동주택에 다양한 형태의 결함 및 문제점이 발생되고 있으며, 향후 이 같은 문제는 더욱 범위가 넓고 다양하게 발생될 것이다. 이러한 노후 공동주택을 개선하기 위한 방법으로 현재 사업추진의 용이성 때문에 재건축이 가장 많이 활용되고 있으나 천연골재의 부족, 폐기물 발생으로 인한 자연환경 파괴, 국가적 자원의 낭비, 재건축이 가장 많이 활용되고 있으나 천연골재의 부족, 폐기물 발생으로 인한 자연환경 파괴, 국가적 자원의 낭비, 재건축단지 인근 지역의 전세대란 초래 등으로 인하여 향후 급격하게 증가하는 노후 공동주택을 대상으로 산업적, 정책적인 측면에서 더 이상 재건축을 적극적으로 추진하기 어려운 실정이다. 따라서 노후 공동주택 성능 개선을 위한 방안으로 무분별한 재건축 추진을 억제하고 리모델링을 활성화 하는 것이 필요하다. 이를 위해 본 연구에서는 수요자의 요구사항을 바탕으로 한 요구 성능을 파악하고, 이를 근간으로 요소기술을 도출하였으며, 도출된 요소기술을 설계, 구조, 설비, 시공의 각 분야별로 묶어 연구를 진행함으로써 리모델링 활성화에 기여하고자 한다.

As the number of aged-housing has been rapidly increased, many kinds of defects and problems such as degeneration of housing environment, structural performance, and equipment performance have been appeared. The reconstruction as the way to improve the aged-housing has been used mostly because the legal process of the reconstruction is relatively easy. On the other hand, it has caused problems such as the lack of natural aggregates, the environmental damages owing to construction wastes, the loss of national resources, and the lack of the housing for rent nearby the reconstruction area. This problems limit active tying into the reconstruction business at present in the industrial and political perspective. In this context, it is necessary to revitalize the remodeling rather than the reconstruction. In order to reach this objective, this research aims at identifying the user-oriented performance for the housing and deducing the core technology. It is expected that the result of this research can contribute to more revitalize the remodeling as tying researches in terms of design, structure, equipment, and construction.

노후 공동주택의 수가 급격하게 증가하면서 주거 환경적인 문제 구조성능의 저하, 설비의 노후화에 따른 성능저하 등으로 인하여 노후 공동주택에 다양한 형태의 결함 및 문제점이 발생되고 있으며, 향후 이 같은 문제는 더욱 범위가 넓고 다양하게 발생될 것이다. 이러한 노후 공동주택을 개선하기 위한 방법으로 현재 사업추진의 용이성 때문에 재건축이 가장 많이 활용되고 있으나 천연골재의 부족, 폐기물 발생으로 인한 자연환경 파괴, 국가적 자원의 낭비, 재건축 단지 인근 지역의 전세대란 초래 등으로 인하여 향후 급격하게 증가하는 노후 공동주택을 대상으로 산업적, 정책적인 측면에서 더 이상 재건축을 적극적으로 추진하기 어려운 실정이다. 따라서 노후 공동주택 성능 개선을 위한 방안으로 무분별한 재건축 추진을 억제하고 리모델링을 활성화 하는 것이 필요하다. 이를 위해 본 연구에서는 수요자의 요구사항을 바탕으로 한 요구 성능을 파악하고, 이를 근간으로 요소기술을 도출하였으며, 도출된 요소기술을 설계, 구조, 설비, 시공의 각 분야별로 묶어 연구를 진행함으로써 리모델링 활성화에 기여하고자 한다.

As the number of aged-housing has been rapidly increased, many kinds of defects and problems such as degeneration of housing environment, structural performance, and equipment performance have been appeared. The reconstruction as the way to improve the aged-housing has been used mostly because the legal process of the reconstruction is relatively easy. On the other hand, it has caused problems such as the lack of natural aggregate, the environmental damages owing to construction wastes, the loss of national resources, and the lack of the housing for rent nearby the reconstruction area. This problems limit active tying into the reconstruction business at present in the industrial and political perspective. In this context, it is required to revitalize the remodeling rather than the reconstruction. In order to reach this objective, this research aims at identifying the user-oriented performance for the housing industry and developing the new technologies. It is expected that the result of this research can contribute to more revitalize the remodeling as tying researches in terms of design, structure, equipment, and construction.

The impulse between launch vehicle and atmosphere can generate a lot of noise and vibration during the process of launching a satellite. Structurally, electronic equipment (KOMPSAT 2, RDU : Remote Drive Unit) of a satellite consists of aluminum case containing PCB (Printed circuit boards). Each PCB has resistors and IC (Integrated circuits). Noise and vibration of wide frequency band are transferred to the inside of fairing, subsequently creating vibration of the electronic equipment of the satellite. In this situation. random vibration can cause malfunctioning of the electronic equipment of the device. Furthermore, when tile frequency of random vibration meets with natural frequency of PCB. fatigue fracture nay occur in the part of solder joint. The launching environment, thus. needs to be carefully considered when designing the electronic equipment of a satellite. In general. the safety of the electronic equipment is supposed to be related to the natural frequency, shapes of mode and dynamic deflection of PCB in the electronic equipment. Structural vibration analysis of PCB and its electronic components can be performed using either FEM(Finite Element Method) or vibration test. In this study. the natural frequency and dynamic deflection of PCB are measured by FEM, aud the safety of the electronic components of PCB is being evaluated according to the results. This study presents a unique method for finite element modeling and analysis of PCB and its electronic components. The results of FEA are verified by vibration test. The method proposed herein may be applicable to various designs from the electronic equipments of a satellite to home electronics.

Laminate products for motor core are developed with a structure in which the importance of quality level and clamping force is influenced by the recent performance and safety of the product. It has been confirmed that the accuracy of the mold is emphasized, and that the accuracy of the tightening force produced by the stacked product for the motor core is greatly influenced by the change in the bottom dead center displacement of the aged high speed press. The reason why setting the mold, and test the effect of bottom dead center of high speed press is to improve product pull force in embossing process at mold. We have applied the system to minimize the effect on the damping displacement under the dynamical degree of the equipment by applying the emboss complement device which can test the influence and complement in the process.

For a carferry with a displacement of 1,633 tonf, a seakeeping analysis-based direct load approach (DLA) was used in Part I of these series, where the final deliverable was the long-term probabilistic acceleration components. In Part II of these series, the tangential acceleration components are explained based on two approaches: a standard called the IMO CSS code and simple formulas with the probable maximum roll and pitch rotations. The subsequent tangential acceleration-induced external force components are also introduced for these two approaches. The lashing strength components were selected from the IMO CSS code. It was assumed that two different vehicles (a car and a truck) were stowed at the most distant locations on the main deck to assume the largest tangential acceleration components and were secured with four steel wires with longitudinal and transverse lashing angles of $45^{\circ}$. Four cases were considered, with different methods for predicting the acceleration components and different tools for the external loads and lashing strengths involved: cases Rule-LS (rule-based maximum probable roll and pitch angles for predicting the acceleration components in conjunction with LashingSafety), DLA-LS (seakeeping-based long-term acceleration components with LashingSafety), CSS-LC (IMO CSS code-based acceleration components using LashCon), and CSS-LS (IMO CSS code-based acceleration components using LashingSafety). In terms of the acceleration and external force components, the CSS-LC and CSS-LS results are more than two times the results of Rule-LS. Thus, when the external forces and lashing strengths are evaluated using CSS-LC and CSS-LS, the truck needs more lashing wires, while Rule-LS and DLA-LS predict that the present lashing configuration is on the safe side.

The capsizing and consequent sinking of a coastal car ferry was recently reported, with numerous human casualties. The primary cause was determined to be a sudden turn with improperly stowed and secured cargo. Part I of this study introduces how long term acceleration components are determined from seakeeping analyses. A carferry with a displacement of 1,633 tonf was selected as the target vessel. Sea data that included the significant wave heights and periods were collected at four observation buoys, some of which were far away from two main voyage routes: Incheon-Jeju and Pusan-Jeju. Frequency response analyses were performed to obtain the linearized radiation force coefficients, hydrostatic stiffnesses, and wave excitation forces. Time response analyses were sequentially performed to produce the motion-induced acceleration processes. The probabilistic distributions of the acceleration components were determined using a peak and valley counting method. Long term extreme acceleration components were proposed as a final result.

In this study, alternative seismic force-resisting systems for plant structure supporting equipment were designed, and the seismic performance thereof was compared using nonlinear dynamic analysis. One alternative seismic force-resisting system was designed per the requirement for ordinary moment-resisting and concentrically braced frames but with a reduced base shear. The other seismic force-resisting system was designed by accommodating seismic details of intermediate and unique moment-resisting frames and special concentrically braced frames. Different plastic hinge models were applied to ordinary and ductile systems based on the validation using existing test results. The control model obtained by code-based flexible design and/or reduction of base shear did not satisfy the seismic performance objectives, but the alternative structural system did by strengthened panel zones and a reduced effective buckling length. The seismic force to equipment calculated from the nonlinear dynamic analysis was significantly lower than the equivalent static force of KDS 41 17 00. The comparison of design alternatives showed that the seismic performance required for a plant structure could be secured economically by using performance-based design and alternative seismic-force resisting systems adopting minimally modified seismic details.

The present study aimed at reviewing international and domestic test methods for firefighters’ personal protective equipment (PPE). The PPE in this review was limited to firefighters’ turnout jacket, turnout pants, fire protective hoods, helmet, gloves and boots. We analyzed test methods on the six items from ASTM, EN, ISO, KS and NFPA. Those test methods were classified into three levels: material (textiles) tests, general/thermal/flame manikin tests, and human wear trials. A total of 40 test methods on materials were extracted. We suggested that terminology in Korean should be reexamined because identical terms were used with different meanings. This could be because test terms in Korea were translated from various international standards. Also, similar test methods on materials were often found in Korea. Similar test methods need to be combined in a test method. Finally, it needs that the test methods using thermal/flame manikins and human subjects are extended because test results from materials or textiles do not fit the performance of PPE. In particular, tests on dexterity, mobility and physiological strains should be evaluated through human wear trials. To adopt such test methods, test systems should be built and experts should be prepared prior to the adopting. The review will provide improving directions for current Korea standards.

본 연구는 지구 온난화로 인해 17 m/s 이상의 열대폭풍 발생 빈도가 증가함에 따라 태양광 시스템의 파손 문제를 해결하고자 한다. 태양광 시스템은 다양한 지지구조물과 연결되어 있으며, 이러한 연결부는 풍하중에 의해 파손될 수 있다. 이를 해결하기 위해, 본 연구에서는 볼트 연결부에 진동 저감 댐퍼를 적용하여 풍하중에 의한 영구적인 변형 발생 위치를 분석하고 응력 및 변위를 감소시키기 위한 연구를 비선형 유한요소 해석을 통해 수행하였다. 3D 유한요소 모델링과 댐퍼의 재료시험을 통해 초탄성 특성을 적용하였으며, 댐퍼의 유무에 따른 전, 후면 풍속에서의 지지구조물의 응력과 변위를 분석하였다. 해석결과, 패널과 지지구조물의 연결부에서 최대 응력이 발생하였고, 댐퍼 적용 시 응력이 감소하였음을 확인하였다. 특히 후면 풍속 시 댐퍼에 의한 응력 감소 효과가 두드러졌다. 이 연구를 통해, 태양광 시스템의 안정성을 높이고 지속 가능한 에너지 인프라 구축에 기여할 수 있기를 기대한다.

In this study, vibration dampers were applied to support structures connected to solar panels to analyze the locations of permanent deformation caused by wind loads and to reduce stress and displacement. The structures were modeled using 3D finite element methods, and nonlinear structural analysis was conducted by incorporating the physical properties of the dampers and structures. The structural analysis assessed the stress and displacement of the support structures under front and rear wind conditions with and without dampers. The results confirmed that the maximum stress occurred at the connections between the panels and support structures, and the application of dampers significantly reduced the stress. Notably, the stress reduction effect of the dampers was more pronounced under rear wind conditions. This study contributes to improving the stability of solar systems and supporting the establishment of sustainable energy infrastructure.

광학 탑재 장비는 다수의 광학 부품 및 검출기로 구성되며 목표물 탐지와 분류를 목적으로 항공기, 전차 및 군함에 탑재되어 운용된다. 수 km 고도에서 운용되는 항공용 광학 탑재 장비는 항공기에서 발생하는 진동 때문에 구조 안정성과 광학 성능 저하가 발생한다. 설계 단계에서 진동 환경조건에 대한 탑재 장비의 구조 안정성 및 광학 성능 검증이 요구된다. 본 연구에서는 진동 환경조건을 시험 표준 규격서와 항공기에서 발생하는 진동을 측정하여 분석하였다. 진동 환경조건은 구조 안정성 검증을 위한 내구도 진동조건과 광학 성능 검증을 위한 운용 진동조건으로 구분하였다. 구조 안정성을 고유진동수 해석, 내구도 진동 응답해석 및 정해석을 통해 검증하였다. 광학 성능을 운용 진동 응답해석 결과를 광학 설계/분석 프로그램에 적용하여 검증하였다.

Optical equipment consists of various components, and a detector is mounted and operated on aircraft, tanks, and warships for target detection and classification. The structural stability and optical performance of aeronautical optical equipment operated at several kilometers of altitude are degraded owing to vibration generated in the aircraft. It is necessary to verify the structural stability and optical performance requirements of the equipment in vibration environment conditions during the design phase. In this study, vibration environment conditions were analyzed using a test standard and the measurements of the vibration generated in aircraft. The conditions were classified as endurance and operating vibration conditions for structural stability and optical performance verification, respectively. The structural stability was verified according to natural frequency analysis, response analysis for the endurance vibration condition, and static analysis. The optical performance was verified by applying the vibration response analysis results to the optical design/analysis program.