• Journal of Digital Convergence
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• v.17 no.5
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• pp.167-178
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• 2019

This research examined how the experience factors and environmental factors of experience store impact the perceived value of the brand and whether the perceived value enhance revisit intention. We collected 258 survey responses and formed structural equation modeling. The results indicated that education experience and esthetics experience had positive impacts on emotional value, while entertainment experience had a positive impact on functional value. Among environment factors, lighting, employee service and layout of the store had positive impacts on functional value, while lighting and employee service had positive impacts on emotional value. Both of the functional value and emotional value enhanced the revisit intention of customers. The results of this study are expected to provide useful information about consumers to the companies managing offline experience stores.

• The Journal of the Korea Contents Association
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• v.19 no.5
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• pp.259-267
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• 2019

As the change in social awareness regarding cats is consistent with the lifestyle of modern people who seek an independent life, the number of cats owned as a pet and its market will continue to increase. The compainion animals are not just pets to pet owners, but people communicate with their pets and the pets have begun to be recognized as a member of their family. Although the pet industry has been steadily growing and the number of cats owned by households is rapidly increasing, there is a lack of study on products based on understanding the characteristics and behavior of cats. The purpose of this study is to propose a versatile furniture design considering the behavior characteristics of cats. The versatile furniture that is easy to move and rearrange according to necessity and the environment of residential space always pays to make better use of the space. We would like to propose versatile furniture that can satisfy the aesthetic pleasures of cats and can be used as furniture at the same time depending on purpose and situation. This study aims to develop the design of furniture that can make a better environment for pets and pet owners, an it is expected to be a basic study of furniture design for them.

• Journal of Digital Convergence
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• v.17 no.4
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• pp.249-254
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• 2019

As an alternative to the growing problem of weather anomalies, users are using mobile weather apps to predict the weather. Even though it provides clear information, the user makes mistakes in forecasting the weather. For this reason, The purpose of this study is to find elements that can be prepared for the volatile weather through mobile application. Jakob Nielsen's "heuristic" evaluation found weaknesses in the application. Then I proceeded to analyze it from a behavioral economics standpoint. As a result, the two applications had various functions and accurate information. However, user accessibility was low and focused on 'information delivery'.

• Journal of Digital Convergence
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• v.17 no.10
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• pp.411-416
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• 2019

This study focused on IKEA Place in IKEA and Amazon AR View in Amazon to study the differences between AR shopping applications. The first literature study examined the status and prospects of the AR market and conducted a case study on AR shopping applications. In the second phase, 'Honeycomb Model' of Peter mobile was reorganized into six usability principles, focusing on the major functions of AR shopping mall application, to conduct surveys and in-depth interviews based on the task. Based on this study, it is expected to help increase AR-based application user experience, concentrating on the actual experience of the user and finding out the major experience factors.

• Journal of Digital Convergence
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• v.19 no.6
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• pp.285-292
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• 2021

Due to the recent Corona 19 outbreak, camping culture is rapidly drawing attention from many people. Convective heating devices, which many campers use during winter, have the temperature stratification problem. To solve this problem, various power circulators are being used. Several non-powered circulators are also on sale, but the direction of the circulator is designed to be at the right angle relative to the convection heating mechanism and the circulator does not properly play the role of air circulation. To solve this problem, a 3D printer is used to design a non-powered circulator in the same direction as the convection heating mechanism. Electricity is generated without power using Peltier element and ceramic paper and the circulator is produced to withstand heat using HTPLA-CF filament. This study presents a method to solve the temperature stratification problem through efficient convective circulation. In addition, the purpose of this study is to manufacture products at a lower cost by using a 3D printer.

• Composites Research
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• v.33 no.6
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• pp.390-394
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• 2020

The carbon fiber has been damaged via tow spreading process for carbon fiber spread tow. The fiber damage is caused by friction between equipment and fibers or between fibers and fibers in the process of spreading. As a result, mechanical properties are decreased due to differences in process via material and equipment condition. Therefore, minimizing fiber damage have to be considered in the process. In this study, the change in carbon fiber pneumatic spreading process was observed by according to the filament count, sizing content of carbon fiber and process variables in spreading equipment (fiber tension at the beginning, air temperature in spreading zone, vacuum pressure in spreading zone). Tensile strength was evaluated using samples prepared under optimal conditions for each of the carbon fiber varieties, and mechanical properties were reduced due to damage on the carbon fiber.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.1
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• pp.786-791
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• 2021

In this paper, in order to minimize limitations such as signal interference and positioning errors in existing indoor positioning systems, a smart LED-based positioning system for excellent line-of-sight radio environments and precise location tracking is proposed to improve accuracy. An IEEE 802.4 Zigbee module is mounted on the SMPS board of a smart LED; RSSI and LQI signals are received from a moving tag, and the system is configured to transmit the measured data to the positioning server through a gateway. For the experiment, the necessary hardware, such as the gateway and the smart LED module, were separately designed, and the experiment was conducted after configuring the system in an external field office. The positioning error was within 70cm as a result of performing complex calculations in the positioning server after transmitting a vector value of the moving object obtained from the direction sensor, together with a signal from the moving object received by the smart LED. The result is a significantly improved positioning error, compared to an existing short-range wireless communications-based system, and shows the level at which commercial products can be implemented.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.12
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• pp.67-76
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• 2020

The purpose of this study was to derive the directionality of technology development of high-power electromagnetic pulse (EMP) shielding concrete and standardization of a shielding performance evaluation method. Because the EMP shielding mechanism of concrete has not been identified clearly, and the verification method for EMP shielding performance has not been standardized, it is difficult to compare the research results between researchers. The development direction of EMP shielding concrete was derived from a consideration of the electromagnetic wave loss mechanism of metal. The standardization direction for verifying the EMP shielding performance of concrete was derived from a consideration of the electrical properties of concrete and the shielding performance evaluation methods of previous studies. As a result, the development of electrically conductive concrete is required, and test methods classified by the electromagnetic wave loss mechanism should be applied. For quality verification, the development of EMP shielding concrete will be feasible and its performance can be evaluated if a test method referencing the generalized shielding evaluation method (MIL-STD, etc.) is applied.

• Journal of Digital Convergence
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• v.19 no.1
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• pp.45-49
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• 2021

Recently, as more attention has been paid to the issues of environmental pollution and animal tests, vegan beauty has become a new trend as an large axis of consumption. Therefore, this study aimed to speculate on the vegan beauty and investigate its corelation with beauty industry through a survey, giving a focus on perception, characteristics, the current status and supplementation of vegan beauty. The results of the survey were: Only 31.3% of the subjects were aware of vegan beauty; In respect to characteristics, the mean value of advantage was 3.08, which was higher than that of disadvantages, 3.04. As for the current status, the rate of purchase intention was high, 81.7% and the rate of outlook was very high, 87.3%. Although vegan beauty has not been popular yet, if price is adjusted, products are diversified and generalized, and performance is improved, it is suggested that it will present positive outlook to future development of beauty industry.

• Journal of Digital Convergence
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• v.18 no.12
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• pp.59-68
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• 2020

This study aims to present the direction of fostering creative and innovative future design personnel required by companies according to the trend of the times. Changes in design manpower policy and industry, academia, and government cases are examined through policy case studies. Through analysis of industry-academia project cases, we discovered that a new educational model is needed to experience the process of developing products that can be commercialized. This study is expected to be used as basic data for policy development related to program development to foster creative and innovative talents required in the design industry.