• Journal of the Korea Society for Simulation
• /
• v.27 no.4
• /
• pp.47-60
• /
• 2018

Today's unmanned technology, which is being used in various industries, is expected to be able to make autonomous judgements as autonomous technology matures, in the long run aspects. In order to improve the usability of unmanned system in the military field, it is necessary to develop a technique for systematically and quantitatively analyzing the efficiency and effectiveness of the unmanned system by means of a substitute for the tasks performed by humans. In this paper, we propose the method of representing rule-based tactical behavior and modeling manned and unmanned reconnaissance agents that can effectively analyze the path alternatives which is required for the future armored cavalry to establish a reconnaissance mission plan. First, we model the unmanned ground vehicle, small tactical vehicle, and combatant as an agent concept. Next, we implement the proposed agent behavior rules, e.g., maneuver, detection, route determination, and combatant's dismount point selection, by NetLogo. Considering the conditions of maneuver, enemy threat elements, reconnaissance assets, appropriate routes are automatically selected on the operation area. It is expected that it will be useful in analyzing unmanned ground system effects by calculating reconnaissance conducted area, time, and combat contribution ratio on the route.

• The Journal of the Korea Contents Association
• /
• v.22 no.2
• /
• pp.107-115
• /
• 2022

This study discusses how to protect foreign knowledge workers from disasters conceptually. While their prestigious social and economic status, the knowledge workers can become vulnerable to disasters due to their nomadic lifestyle and voluntary isolation from communities where they reside temporarily. This study introduced and discussed strengths and weaknesses of various types of disaster communication networks and found the Small World Network (SWN) and the use of structural holes would be an appropriate strategy for the protection of knowledge workers. The use of mediators for disaster communication would be a strategic intervention from public and private organizations since that addresses voluntary isolation issue without restructuring existing disaster communication network.

• Journal of Digital Convergence
• /
• v.16 no.4
• /
• pp.343-354
• /
• 2018

This sturdy proposed and tested whether the six core treatment processes of Acceptance and Commitment Therapy (ACT) reduce self-criticism and dichotomous thinking in Evaluative concerns perfectionists and even diminish depression and ultimately verify it. The sample consisted of 22 subjects who displayed high EC perfectionism and depression. The subjects were randomly assigned to ACT groups or control groups (n-11/each). The ACT program was administered in eight sessions. All participants completed scale about EC perfectionism, self-criticism, dichotomous thinking, depression and acceptance & action at the pre-test, post-test, and the six week follow-up. The results showed that evaluative concerns perfectionism, self-criticism, dichotomous thinking, and depression decreased more in the treatment group than in the control group, whereas acceptance & action increased in the former. Finally, the implications and limitations of this study, along with suggestions for future study were discussed.

• Korean journal of applied entomology
• /
• v.58 no.3
• /
• pp.209-218
• /
• 2019

This study was conducted to develop a technology for environmentally friendly control of sweet-potato whitefly, Bemisia tabaci, by controlling their behavior using a push-pull strategy in a tomato greenhouse. B. tabaci was attracted the most by yellow color, light source of 520 nm, whereas it avoided the complex light treatment of 450 + 660 nm. The two natural enemies of B. tabaci, Cyrtopeltis tenuis and Orius laevigatus, were attracted the most by 520 nm light source. B. tabaci was repelled by the volatile organic compounds ocimene and carvacrol and was the most attracted by methyl isonicotinate. When buckwheat was added into the tomato greenhouse, the density of C. tenuis was maintained at about 16 times higher than when untreated for 15 days. As a result of the combined treatment of push-pull strategy, the density per trap of B. tabaci was three times lower than when no treatment was applied, and the control of this pest increased with time and reached up to 68.7%.

• Journal of the Korea Convergence Society
• /
• v.9 no.9
• /
• pp.271-284
• /
• 2018

The purpose of this study was to examine the effects of the narrative therapy group counseling program using RPG(Role Playing Game) format on happiness and negative emotions in children. The subjects of this study were 30 elementary school students who were referred to emotional and behavioral problems in a mental health center or elementary school in Seoul. They were allocated into an experimental group and a control group containing 15 students. Experimental group received a 60-minutes-session per week for 8 weeks. As a result, negative emotions of the experimental group statistically and significantly decreased compared with the control group, as well as the happiness. Results after 20 days showed that was maintained. In conclusion, the narrative therapy group counseling program using RPG (Role Playing Game) format in this study was found to be effective in reducing negative emotions and increasing happiness.

• Journal of the Korea Society of Computer and Information
• /
• v.14 no.9
• /
• pp.195-204
• /
• 2009

The present study investigated the effects of focus on consumers' attitudes and buying intentions. For these purposes, researcher compare the attitudes and buying intentions by focus groups after presenting cognitive and affective product informations about a cellular-phone. The results of present experiment were as follow: First, cognitive focus led to highest cognitive attitude and affective focus also led to highest affective attitude. Second, It was highest buying intention in an affective focus and lowest in a non-focus. Third, a cognitive focus resulted in more cognitive words being recalled, by comparison with an affective focus, whereas an affective focus resulted in more affective words being recalled, by comparison with a cognitive focus. But they were not significant. These results show that cognitive and affective focuses lead to different attitudes that differ in their basis. An attitude formed in an affective focus results in a stronger buying intention than an attitude formed in an cognitive focus. The present findings also suggest that the different focus conditions result in different attitudes and buying intentions being formed, and to be diluting but to more enduring effects.

• Korean Journal of Acupuncture
• /
• v.30 no.4
• /
• pp.298-304
• /
• 2013

Objectives : We examined mutual inhibitory effects of combined acupoints in arthritic pain induce by carrageenan(CA). Electroacupuncture(EA) is considered a potentially useful treatment for arthritis. Although the analgesic effect of acupuncture is well documented, little is understood about its biological basis. There are many previous studies of positive effect of combined acupoint, this study was conducted to see the mutual inhibitory effects produced by combined acupoint(ST36 and PC7) on arthritic rats. Methods : For the induction of inflammatory pain rat model, CA was injected into the knee joint cavity. There are four groups; EA was applied to bilateral PC7 acupoints(PC7 group), ST36 acupoints(ST36 group), and both PC7 and ST36 acupoints(ST36+PC7 group) except for the control group. The pain level were assessed to determine the change in weight bearing force. We also examined the COX-2 expression in dorsal horn using immunohistochemistry and western blot analysis. Results : The ST36+PC7 group data showed the significant reduction of weight bearing force and the induction of COX-2 protein expression compared with the ST36 group. Conclusions : Simultaneous EA applied to the ST36 and PC7 acupoints reduced the analgesic effect of the ST36 group on knee inflammatory pain.

• Korean Journal of Acupuncture
• /
• v.30 no.1
• /
• pp.56-63
• /
• 2013

Objectives : Effects of repetitive electroacupuncture(EA) on the pain behavior and activation of spinal glial cells were examined in the rat model of neuropathic pain. Methods : Twenty one adult male Sprague-Dawley rats were randomly assigned into 3 groups(control group, SP6 group, ST36+GB34 group). Neuropathic pain was induced by tight ligation of L5 spinal nerve. Mechanical and thermal hypersensitivity of hind paw were tested. Immunohistochemistry was performed in spinal cord L5/6 of all groups. EA was treated once in a day from the $5^{th}$ day after surgery. Results : EA treatments applied to ST36 and GB34 reduced significantly both of mechanical and thermal hypersensitivity after 3 times of treatment throughout the experiments. In the SP6 group, the analgesic effect was also shown after 7 times of treatment. Immunohistochemistry demonstrated inhibition of microglia and astrocyte activation in the spinal cord L5/6 dorsal horn in the ST36+GB34 group. Conclusions : The present results suggest that repetitive EA exert strong analgesic effect on neuropathic pain. These analgesic effects in neuropathic pain are associated with suppressing the activation of microglia and astrocyte.

• Korean Journal of School Psychology
• /
• v.16 no.3
• /
• pp.283-313
• /
• 2019

The purpose of this study was to develop and examine the effectiveness of 'Coping Resources Improvement Program' designed for emerging adults experiencing psychosocial difficulties during college to work transition. Based on transition model of Scholossberg(1995), the program was developed to intervene in 4S (Situation, Self, Support, Strategy) required in the transition. Participants included 31 job applicants who are senior or above and were assigned to the experimental group (N=10), comparison group (N=10), and control group (N=11). Data to verify effectiveness were collected pre-, mid-, and post treatment. Results indicated that the level of coping resources and psychosocial difficulties in the transition changed significantly after the program and those changes were still maintained after a month in the experimental group. However, there were no statistically significant changes on job-search burnout and career-adaptability in all groups. The implication and limitation of the study and the suggestions for the future studies were discussed.

• Korean journal of applied entomology
• /
• v.58 no.3
• /
• pp.233-238
• /
• 2019

For greenhouse crops, thrips is one of the major insect pests, but its control is difficult owing to short generation time, rapid escaping behavior, and development of pesticide resistance. Stratiolaelaps scimitus (Womersley) is a soil-dwelling predatory mite attacking various soil invertebrate species, including thrips. Using the method by growers' self-production, we mass-reared S. scimitus colony and investigated thrips control in the greenhouse chrysanthemum. The initial density of thrips was six individuals/flower. The treatment with one S. scimitus box in the greenhouse was estimated to be $1,000individuals/m^2$. From August to September 2018, the greenhouse was released with a total of 10 boxes of S. scimitus. The density of thrips in the untreated and the treated cultivar was $53.7{\pm}7.0$ and $13.5{\pm}1.7$ on the late September, respectively, which indicated a reduction of 74.9% in the treated cultivar. Our results suggest that S. scimitus was highly effective for the control of thrips in the greenhouse chrysanthemum although temperature is very high during the summer season.