• Journal of Convergence for Information Technology
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• v.10 no.6
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• pp.140-146
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• 2020

Since the current crime prevention systems have a standard mechanism that victims request for help by themselves or ask for help from a third party nearby, it is difficult to obtain appropriate help in situations where a prompt response is not possible. In this study, we proposed and developed an automatic rescue request model and system using Deep Learning and OpenCV. This study is based on the prerequisite that immediate and precise threat detection is essential to ensure the user's safety. We validated and verified that the system identified by more than 99% of the object's accuracy to ensure the user's safety, and it took only three seconds to complete all necessary algorithms. We plan to collect various types of threats and a large amount of data to reinforce the system's capabilities so that the system can recognize and deal with all dangerous situations, including various threats and unpredictable cases.

• Fire Science and Engineering
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• v.21 no.1 s.65
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• pp.37-50
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• 2007

A primary task of fire department is maintaining public safety, system maintenance and welfare improvement by protecting life, body and property of a people through prevent and extinguish of the fire in emergency. Rescue part of those affairs has supported by the people but affairs related to the fire examination and investigation could not get it. Although fire examination is a very important part of fire department administration, it has been understood indifferently due to lack of awareness and concern. There are no scientific fire examination because of lacking education study and the whole responsibility capacity about it. There are many things have to be improved at fire examination and investigation system in Korea. Especially, establishment of the whole responsibility post is urgent through assuring professionals to improve accuracy of fire examination and investigation. Equipment which can do scientific fire examination and investigation have to be fully furnished. Efficiency of fire examination and investigation has to be increased through improving law related to fire examination and investigation, giving rescuers investigation right. Through this, it systematically have to be good for fire prevent.

• Journal of the Korean Society of School Health
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• v.22 no.2
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• pp.157-167
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• 2009

Purpose : The purpose of this study is to explore the students injuries by analyzing the data which has been inputted by the emergency center of the cooperated hospitals and the 119 rescue party through the injury surveillance system in Cheonan city. Method : Students were divided into the elementary, middle, high school students with the 776 cases of children and teenagers(7-19years old) of injury surveillance system in Cheonan area from january to june in 2009. Frequency analysis and $x^2$-test was done to recognize the features of students injuries among the groups. The program to be used for the statistical analysis is SPSS 17.0. Result : Out of the injury incidence rate, the elementary school students(52.1%) are first, the high school students (24.9%) are second, the middle school students appear to be 23.1%. Male is about two times higher than female by 66.6% in the injury incidence. In terms of the injury mechanism, the injury(22.2%) by hit is the first, the traffic accident(21.5%) is the second, the slippery(16.8%) is followed. The injuries were occurred most largely at 16:00-20:00(33.4%), and the 33.6% of injury by daily leisure activity occurs at 16:00-20:00 chiefly. Conclusion : Analysis using the data of the injury surveillance system has some advantages compared to the previous research such as reliability and specification. To prevent the students injuries, not the individual problem but the social dimension should be acknowledged so that we can secure and promote the safety from the risk. Therefore, we must organize the role assignment and the cooperative network in the school, home and community.

• The Korean Journal of Pain
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• v.28 no.1
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• pp.45-51
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• 2015

Background: Arthroscopic shoulder operations (ASS) are often associated with severe postoperative pain. Nerve blocks have been studied for pain in shoulder surgeries. Interscalene brachial plexus blocks (ISB) and an intra-articular injection (IA) have been reported in many studies. The aim of the present study is to evaluate the effect of ISB, a continuous cervical epidural block (CCE) and IA as a means of postoperative pain control and to study the influence of these procedures on postoperative analgesic consumption and after ASS. Methods: Fifty seven patients who underwent ASS under general anesthesia were randomly assigned to one of three groups: the ISB group (n = 19), the CCE group (n = 19), and the IA group (n = 19). Patients in each group were evaluated on a postoperative numerical rating scale (NRS), their rescue opioid dosage (ROD), and side effects. Results: Postoperative NRSs were found to be higher in the IA group than in the ISB and CCE groups both at rest and on movement. The ROD were $1.6{\pm}2.3$, $3.0{\pm}4.9$ and $7.1{\pm}7.9$ mg morphine equivalent dose in groups CCE, ISB, and IA groups (P = 0.001), respectively, and statistically significant differences were noted between the CCE and IA groups (P = 0.01) but not in between the ISB and CCE groups. Conclusions: This prospective, randomized study demonstrated that ISB is as effective analgesic technique as a CCE for postoperative pain control in patients undergoing ASS.

• Journal of Biosystems Engineering
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• v.37 no.6
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• pp.352-358
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• 2012

Purpose: The inexpensive black box system was developed to acquire and save driving information, to give the slope information, and to transmit SOS and theft signal. Method: The device consists of a main micro controller to acquire and save data, a GPS sensor module, a CDMA module, a touch LCD module, a RF (Radio Frequency) ID module, a SD (Secure Digital) card module, an emergency electric power source, a theftproof circuit, and a sensing device. The sensing device consists of a 8 bit micro controller, a accelerometer to detect impulse, two slope sensors to detect roll and pitch angle and a circuit to detect operation of 6 lighting devices. Results: Test results are as follows: 1) a tractor can be start up only with an electronic key (password or RFID card), 2) theft signal was transmitted when a tractor moved without an electronic key, 3) SOS was transmitted at conditions that rollover or crash happened. 4) 5 more than per 1s data are recorded at 5 minute intervals as new file name in SD card. Conclusions: This system can be used to save travelling record, reduce accident, prevent theft and rescue life in the accidents.

• Journal of Korean Society for Geospatial Information Science
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• v.20 no.4
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• pp.135-143
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• 2012

Remote sensing which observes repeatedly the whole Earth and GIS-based decision-making technology have been utilized widely in disaster management such as early warning monitoring, damage investigation, emergent rescue and response, rapid recovery etc. In addition, various countermeasures of national level to collect timely satellite imagery in emergency have been considered through the operation of a satellite with onboard multiple sensors as well as the practical joint use of satellite imagery by collaboration with space agencies of the world. In order to respond heavy snowfall disaster occurred on the east coast of the Korean Peninsula in February 2011, snow-covered regions were analyzed and detected in this study through NDSI(Normalized Difference Snow Index) considering reflectance of wavelength for MODIS sensor and change detection algorithm using satellite imagery collected from International Charter. We present the application case of National Disaster Management Institute(NDMI) which supported timely decision-making through GIS spatial analysis with various spatial data and snow cover map.

• Journal of the Korea Society of Computer and Information
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• v.11 no.1 s.39
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• pp.87-96
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• 2006

Selectivity estimation is one of the query optimization techniques. It is difficult for the previous selectivity estimation techniques for moving objects to apply the position change of moving objects to synopsis. Therefore, they result in much error when estimating selectivity for queries, because they are based on the extended spatial synopsis which does not consider the property of the moving objects. In order to reduce the estimation error, the existing techniques should often rebuild the synopsis. Consequently problem occurs, that is, the whole database should be read frequently. In this paper, we proposed a moving object histogram method based on quad tree to develop a selectivity estimation technique for moving object queries. We then analyzed the performance of the proposed method through the implementation and evaluation of the proposed method. Our method can be used in various location management systems such as vehicle location tracking systems, location based services, telematics services, emergency rescue service, etc in which the location information of moving objects changes over time.

• Journal of Digital Convergence
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• v.14 no.12
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• pp.369-375
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• 2016

Purpose of this study was to compare the easiness of insertion of three Supraglottic airway devices(SADs) in a neutral and cervical neck collar position in a manikin setting. Three different SADs-Laryngeal Mask Classic (LMA), I-gel and Streamlined Liner of the Pharynx Airway(SLIPA) were applied. Thirty nine emergency medical technicians (EMTs) who are working in Korea 119 rescue services were taught briefly about the use of the LMA, I-gel and SLIPA in a manikin setting. The time to effective ventilation was shorter in I-gel ($10.5{\pm}2.2$, $11.4{\pm}5.7$) and SLIPA ($12.3 {\pm}5.1$, $12.0{\pm}6.8$) than LMA ($17.2{\pm}3.2$, $18.5{\pm}5.5$) in a neutral and cervical neck collar position, respectively(p<0.05). There was no difference between head positions in each of the airways. In conclusion, in the speed of insertion, I-gel and SLIPA were superior to LMA in the neutral and cervical collar setting of a manikin.

• Journal of the Korea Convergence Society
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• v.12 no.9
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• pp.179-183
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• 2021

This study was carried out examine the effect of Celeriac Extract, which contains various anticancer ingredients, on the proliferation inhibition of human-derived cancer cells and the degree of inhibition. The five cell lines used in the experiment were lung cancer cells A549, prostate cancer cells DU-145, uterine cancer cells HeLa, breast cancer cells MCF-7, and liver cancer cells SNU-182. All cancer cells derived from the human body were used, and the inhibition of cancer cell proliferation with Celeriac Extract 10ug/mL, 100ug/mL, and 1000ug/mL was measured using the CCK-8 method. As a result of examining the inhibition of cancer cell proliferation, Celeriac Extract 1000ug/mL showed significant proliferation inhibition in lung cancer cells A549, prostate cancer cells DU-145, uterine cancer cells HeLa, and liver cancer cells SNU-182, and showed a concentration dependence. However, only a concentration-dependent decrease was observed in breast cancer cells MCF-7.In conclusion, it can be seen that the cell proliferation inhibition mechanisms of Celeriac Extract using various human-derived cancer cell lines provide the potential for cancer prevention and therapeutic development.

• Journal of Digital Convergence
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• v.17 no.2
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• pp.447-451
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• 2019

The study was designed to investigate the antibacterial effect of Helicobacter pylori against 32 medicinal plants commonly used as health foods. The medicinal plants used in this study were 32 kinds of medicinal plant extracts using the disk diffusion method for H. pylori activity, which can be eaten every day by everyone. Amoxicillin sodium (150 mg / ml, Ildong Pharmaceutical) and Metronidazole 50 mg / ml) was used as a control group. We measured the area of the transparent area and evaluated that the larger the area, the more effective it is for H. pylori. As a result of this study, the clear zone of inhibition was highest at $372.90mm^2$, second was $358.30mm^2$, and Chungho was $348.32mm^2$. The positive control group, Metronidazole (50 mg / ml CJ), was $503,29mm^2$. In the future, the development of antimicrobial materials of various medicinal plants is expected to be effective for the inhibition of H. pylori.