• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.05a
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• pp.615-617
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• 2022

Currently, the 'Gacha' system is becoming an indispensable profit generation method for online and mobile games. The system, also called "probability randomization," proceeds with cash-based payments, and it is not clear how much money you need to use to obtain the item you want. So, in response to the backlash of users, game companies introduced a "ceiling" system that allows users to get the items they want if they use it for more than a certain amount, and added several profit generation methods using it. We examine the impact of this system on continuous billing induction.

• Life and Agrochemicals
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• s.253
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• pp.33-35
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• 2009

공직 36년동안 오로지 국민의 행복을 위해 부의와 타협하지 않고 소신 있는 일처리로 정평이 났던 이정운(67) 전 농촌진흥청 연구관리국장. 고교시절부터 좌우명인 '일근천하무난사 백인당중유태화(一根天下無難事, 百忍堂中有泰和)'를 실천할 수 있었던 초석은 아마도 늘 '정직'을 강조하셨던 어머니의 가르침과 독실한 가톨릭 신자로서 가진 신앙의 힘이 아니었을까 싶다. 한결같이 부지런하면 천하에 어려운 일이 없고 백번 참으면 집안에 큰 평화가 있다는 의미의 좌우명이다. 가훈 또한 '하느님 은총아래 겸손하게 감사하며 사랑으로 살자'이며 애창곡 역시도 '사랑으로'일만큼 그 삶은 온통 감사와 사랑, 정직의 궤를 벗어난 예가 없다. 사랑을 실천하며 멘토의 역할을 마다 않는 이 국장을 용인시에 위치한 고풍스러운 한정식집에서 만나보았다.

• Journal of Korea Game Society
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• v.21 no.1
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• pp.35-42
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• 2021

The purpose of this study is to examine the aesthetic value of alea, which is placed in negative discourse with a focus on gambling. Alea has not been properly evaluated for its value based on pathological interpretation. Therefore, in order to objectively examine the aesthetic value of alea, This study attempts to look at alea from the perspective of digital remediation and explore the significance which can be distinguished from gambling. The purpose of this study is to examine the difference between RNG mechanism and the analog mechanism, and to find out what changes occur in the aesthetic framework of alea.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.34 no.2
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• pp.179-192
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• 2024

macOS presents challenges for memory data acquisition due to its proprietary system architecture, closed-source kernel, and security features such as System Integrity Protection (SIP), which are exclusive to Apple's product line. Consequently, conventional memory acquisition tools are often ineffective or require system rebooting. This paper analyzes the status and limitations of existing memory forensics research and tools related to macOS. We investigate methods for memory acquisition and analysis across various macOS versions. Our findings include the development of a practical memory acquisition and analysis process for digital forensic investigations utilizing OSXPmem and dd tools for memory acquisition without system rebooting, and Volatility 2, 3 for memory data analysis.

• Journal of the Korean Society of Radiology
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• v.15 no.1
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• pp.37-43
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• 2021

Republic of Korea has many nuclear facilities in the country, and Democratic People's Republic of Korea(North Korea) locates in the surrounding country. Therefore, it is necessary to construct the target facility's nuclear forensic data in a preemptive response to the changing international situation. For this reason, this study suggests "signature" materials used to understand the origins and sources of nuclear and other radioactive materials, taking into account domestic nuclear facilities and the nuclear fuel cycle. In domestic, pressurized light water reactors and pressurized heavy water reactors are in operation, and enriched and natural uranium are used as fuels. In the front-end fuel cycle, the signature materials can be nature uranium and UF6 in the uranium enrichment process. The domestic back-end fuel cycle adopts a non-circulating cycle excluding the reprocessing process, and the primary signature material is spent nuclear fuel. According to IAEA recommendation, the importance of these materials as the signature and characteristic contents are suggested in this study. To prove the integrity of nuclear material and build a national nuclear forensics library, it is necessary to grasp the signature material and acquire the characteristic data considering the domestic nuclear facilities and the nuclear fuel cycle.

• Journal of the Korean Society of Radiology
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• v.18 no.1
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• pp.37-44
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• 2024

Even though MR can reveal excellent soft-tissue contrast and functional information, CT is also required for electron density information for accurate dose calculation in Radiotherapy. For the fusion of MRI and CT images in RT treatment planning workflow, patients are normally scanned on both MRI and CT imaging modalities. Recently deep-learning-based generations of CT images from MR images became possible owing to machine learning technology. This eliminated CT scanning work. This study implemented a CycleGan deep-learning-based CT image generation from MR images. Three CT generators whose learning is based on T1- , T2- , or T1-&T2-weighted MR images were created, respectively. We found that the T1-weighted MR image-based generator can generate better than other CT generators when T1-weighted MR images are input. In contrast, a T2-weighted MR image-based generator can generate better than other CT generators do when T2-weighted MR images are input. The results say that the CT generator from MR images is just outside the practical clinics and the specific weight MR image-based machine-learning generator can generate better CT images than other sequence MR image-based generators do.

• The Journal of the Korean dental association
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• v.57 no.5
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• pp.288-295
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• 2019

Sleep-disordered breathing (SDB) is defined as a disturbed breathing during sleep caused by repetitive upper airway collapse. Complete collapse causes a cessation of breathing, known as obstructive sleep apnea (OSA) and snoring can arise from partial collapse. Undiagnosed and untreated OSA means recurrent intermittent hypoxemia and leads to a variety of cardiovascular disorders, disturbed neurocognition, and excessive daytime sleepiness. Various behavioral modalities have been suggested for treating snoring and sleep apnea including changing the sleep position, avoiding alcohol, and weight loss. Until now continuous positive airway pressure (CPAP) therapy is one of effective treatment for patients with OSA, but its discomfort causes less tolerance and compliance. Therefore, clinical effectiveness and convenience for oral appliance have emerged and the role of dentists has become more important in the management of OSA.

• Journal of agriculture & life science
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• v.46 no.6
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• pp.157-163
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• 2012

Pleurotus eryngii. one of the most popular edible mushrooms, has been well known for its biological activities such as antioxidation, antitumor and immune modulation. Spent coffee ground(SCG) that is a waste product from the coffee industry has been continuously investigated for its reutilization. In this study, SCG was added to the fungal cultuvation medium and analyzed for its effect on the growth and physiological activity of P. eryngii mycelia. It was clearly demonstrated that SCG could accelarate mycelia growth. 1% SCG culture was very notable by showing 2.5-fold higher dry cell weight comapred to the control culture, which suggested SCG as an excellent activator for the growth of P. eryngii mycelia. By the addition of SCG, polyphenol content was increased by two fold but there was no change in polysaccharide content. In the analysis of DPPH scavenging activity, SCG was determined as a valuable source in order to significantly increase the antioxidative activity of the mycelium.

• Journal of Korean Academy of Nursing
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• v.49 no.5
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• pp.515-525
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• 2019

Purpose: This study aimed to evaluate the effectiveness of a customized health promotion program (CHPP) on depression, cognitive functioning, and physical health of elderly women living alone in the community. Methods: A randomized comparison of pre-and post-test design was used with 62 participants assigned to either an intervention (n=32 in seven clusters) or a control group (n=30 in seven clusters) in 14 areas of a town. The final sample included 30 intervention participants who completed the CHPP for 10 weeks, and 26 control participants. The intervention group participated in the CHPP weekly; they were provided with instructions about coping with their chronic illnesses, lifestyle modification, risk management, providing emotional support to each other, and floor-seated exercise, which they were encouraged to do three times a week in their homes. Results: Significant group differences were found in depression (U=48.50, p<.001), cognitive functioning (U=2.50, p<.001), left arm flexibility (U=251.50, p=.023), right arm flexibility (U=225.00, p=.007), static balance (U=237.00, p=.012), and gait ability (U=190.50, p=.004). However, there were no significant differences in bothgrip strength and muscle mass between the two groups. Conclusion: The findings indicate that CHPP was overall effective at improving depression, cognitive functioning, and physical functioning of elderly women living alone, and could therefore be considered a positive program for community-dwelling elderly women living alone.

• Journal of Korean Clinical Nursing Research
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• v.28 no.3
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• pp.277-288
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• 2022

Purpose: This study was conducted to evaluate the effects of the insulin therapy adherence program (INSTA GRAM) for patients with type 2 diabetes mellitus. Methods: This study examined a total of 63 patients with type 2 diabetes for whom the initiation of insulin therapy is being considered or within 6 months of undergoing insulin therapy. INSTAGRAM is a stage-specific intervention consisting of strategies for motivating patients to initiate and maintain insulin therapy using the transtheoretical model on the stages of change, the process of change, and self-efficacy. The participants were randomly assigned to either the INSTAGRAM group (experimental group, n=32) or the standard diabetes education group (control group, n=31). The INSTAGRAM group received 6 sessions over 8 weeks(face-to-face education was conducted in the first and last sessions, and telephone coaching was conducted from the second to fifth sessions). The outcomes were measured by psychological insulin resistance, self-efficacy, and glycosylated hemoglobin (HbA1c). Results: Psychological insulin resistance (p<.001), self-efficacy (p<.001), and HbA1c (p=.024) of the participants in the INSTAGRAM group significantly improved compared to those in the control group. Conclusion: INSTAGRAM is effective in overcoming psychological insulin resistance and improving self-efficacy and HbA1c. Therefore, the INSTAGRAM can be recommended as a nursing intervention for type 2 diabetic patients who delay the initiation of insulin therapy.