• Proceedings of the Korean Institute of Intelligent Systems Conference
• /
• 2004.04a
• /
• pp.345-348
• /
• 2004

플레이어의 상대 역할을 수행하는 NPC(Non-Player Character)의 구현은 게임에서 재미요소를 좌우하는 중요한 부분이다. 일반적인 NPC는 설정된 값에 따라, 동일한 조건에 대해 동일하게 반응하므로 플레이어로 하여금 예측 가능하게 하여 게임의 재미를 저하시키는 요인이 된다. 따라서 플레이어의 행동과 수준에 대하여 지능적으로 적절히 반응하는 NPC 기술이 필요하다. 본 논문은 퍼지 플러스터링을 이용한 플레이어의 게임 성향을 기반으로 NPC의 행동 반응을 조절함으로써 게임에 동적인 반응을 보이며 플레이어의 수준에 적절히 반응하도록 하는 NPC 기법을 제안한다.

• Proceedings of the KSMRM Conference
• /
• 2001.11a
• /
• pp.35-45
• /
• 2001

근골격계 관련 질환은 자기공명영상(MRI)에 있어서 중요한 적응증 중 하나이다. 조직간 대조도가 우수하고 원하는 방향으로 촬영이 가능한 자기공명영상은 근골격계 부위의 촬영에 적합하고 탁월한 역할을 나타낸다. 특히 최근까지 MRI는 표면코일, 경사자기(gradient)관련 기기 및 박동연쇄(pulse sequence)의 지속적이고 빠른 발달에 힘입어 영상의 질과 진단능력이 비약적으로 발전하였고 MR장비의 세대교체가 빠르게 진행되고 있다.

• Journal of the Korean Society for Precision Engineering
• /
• v.17 no.5
• /
• pp.15-24
• /
• 2000

NC 기술은 하드웨어적, 소프트웨어적으로 빠르게 발전하고 있다. 소프트웨어적인 측면에서 NC제어기는 다양한 적응제어, 지능제어를 지원하는 추세이며, NC 가공기의 경우 고속가공, 정밀가공의 기능적 측면에서 발전이 이루어지고 있다. 뿐만 아니라, 컴퓨터 기술의 발전에 힘입어 NC가공을 지원하기 위한 환경(CAD, CAM, CAE) 역시 바르게 변화하고 있다. 그러나 CAM과 CNC 사이의 데이터 인터페이스는 여전히 ISO 6983(“G-Code”)이 사용되고 있다.

• Tuberculosis and Respiratory Diseases
• /
• v.47 no.6
• /
• pp.727-734
• /
• 1999

본원의 비데오 흉강경술 경험과 문헌에서 볼 때, 흉막강 질환에서 흉강경술의 역활은 수기가 국소 또는 경막하 마취 혹은 전신 마취에서 가능하고 작은 구경의 흉강경으로 전 흉막강을 관찰할 수 있으므로 진단 및 치료 효과가 우수하였다. 흉막강 질환에서의 주요 적응증은 흉수, 농흉, 기흉, 흉막 종양, 흉막의 외상, 흉막강내 이물의 진단 및 치료되고 있다. 흉막강내 각종 수기에 사용하는 기구의 개발과 수기의 발전으로 흉막강내 질환에 대한 치료 성적은 전통적인 개흉수술에 비교하여 우수한 결과를 나타내고 있다.

• Journal of the Korean Society for Precision Engineering
• /
• v.1 no.3
• /
• pp.26-40
• /
• 1984

전자공업은 방위산업발달에 획기적인 역할을 담당하고 있으며, 특히 전략적 $C^{3}$/I( Command, Control, Communication, and Intelligence) 개념을 도입하여, 국가방위를 위한연구가 미국의 여러 대학들과 방위성 산하 연구기관에서 활발히 진행되고 있다. 이 글에서는 $C^{3}$/I에 대한 개략적인 개념을 소개하고, 추계학적(Stochastic) 관점에서 $C^{3}$/I가 실전을 위해 어떻게 응용되고 있는가를 고찰하기 위하여 최근에 발표되고 있는 비 선형필터링(Nonlinear Filtering), 적응필터링(Adaptive Filtering) 최적제어 문제들을 소개하고자 한다.

• Journal of Korean Academy of Nursing
• /
• v.42 no.2
• /
• pp.149-160
• /
• 2012

Purpose: The purpose of this study was to explain the role transition process to nurse case managers (NCMs) for Medical-aid beneficiaries in Korea. Methods: Fourteen NCMs were interviewed regarding their experiences of becoming proficient in the new role of case manger. Data were analyzed through the application of grounded theory. Results: 'Taking root in a barren land' was the core category explaining the role transition process of NCMs. They engaged in four stages: launching, trial and error, proficiency, and wait-and-see stages. NCMs showed not only fear but also passion for case management practice. Despite their passion and effort, NCMs went through a period of trial and error. After becoming skilled, NCMs went through a stage of wait-and-see often because of job insecurity related to temporary position or few opportunities for promotion. Factors influencing NCMs' role transition process included their understanding of client characteristics, belief in case management, and support from their colleagues and families. Conclusion: NCMs experience many challenges in the process of becoming proficient NCMs. To help with their role transition, there is a need for education programs, preceptorship programs, research on their roles and functions, and regulation for securing NCMs' employment and career stability.

• Journal of the Institute of Electronics Engineers of Korea SD
• /
• v.46 no.1
• /
• pp.59-67
• /
• 2009

In this paper, we have proposed the structure of the IMADF(improved modified multiplication-free adaptive filter) to cancel the adaptive noise in biomedical signals. The IMADF structure use the one-step predicted filter in the multiplication-free adaptive digital filter(MADF) structure using the DPCM and Sign algorithm. And then we use the heart phantom model based on the magnetocardiographic (MCG) to test the biomedical signals and analyze the signal of it. Their functions of the heart phantom occur from the multidipole current source. This can play role the same in the real function of the human heart to study it. In the experimental results, the IMADF algorithm has reduced the computational complexity by use of only the addition operation without a multiplier. Also, under the condition of identical stationary-state error, it could obtain the stabled convergence characteristics that the IMADF algorithm is almost same as the sign algorithm, but is better than the MADF algorithm. Here, this algorithm has effective characteristics when the correlation of the input signal is highly.

• The Journal of the Korea Contents Association
• /
• v.15 no.8
• /
• pp.304-312
• /
• 2015

Purpose: This study was to investigate the effects of career education program on career self-efficacy, career adaptability and career stress among nursing student. Methods: A one-group, pre-post design was utilized with 95 nursing students as subjects. The career education program was consisted of four domains((1) Career exploration, (2) Self understanding, (3) Establishment of career planning (4) Practice of career planning) and included counselling, special lectures, simulated job interview, and feedback of interview. The data were analyzed using descriptive statistics, paired t-tests, ANCOVA(SPSS 20.0). Results: The scores on the factors of career self-efficacy(t=4.48, p<.011) and career adaptability(t=3.02, p=.003) increased significantly after the education intervention. The score of career stress(t=-2.45, p=.015) decreased significantly. Career education program is useful in improving career self-efficacy, career adaptability and career stress in nursing students. Conclusions: The results of study suggest that there needs more development and application of career education program.

• The Journal of the Acoustical Society of Korea
• /
• v.18 no.5
• /
• pp.35-43
• /
• 1999

In this paper, a new robust adaptive algorithm and a post-processing method are proposed to improve the performance of AEC without computational burden. Its step-size is normalized by the sum of the powers of the reference input signal and the desired signal. When the near-end speaker's speech and noise are applied into the microphone, the step-size becomes small and the misalignment of coefficients are reduced. To reduce the residual echoes, a new post-processing method, which is co-operated with the proposed noise-robust adaptive algorithm, is proposed in this paper. The method is based on the correlation of the desired signal and the estimation error signal. The residual echoes are attenuated as proportional to the correlation normalized with the power of desired signals. The normalized correlation plays a role as Wiener filter for residual echoes. In the double-talk situation, the estimation error signals, that are residual echoes, dominantly include the near-end speaker's speech and the normalized correlation closes to 1. Therefore, the near-end speaker's speech can be transmitted without being attenuated. When the desired signals consists of only the acoustic echoes, the residual echoes are mostly attenuated and canceled by the proposed post-processor. The computation of AEC using the proposed post-processor is comparable to NLMS algorithm.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.24 no.12B
• /
• pp.2382-2390
• /
• 1999

In this paper, we employed a new quantization scheme called sample-adaptive product quantizer (SAPQ) to quantize image data based on the differential pulse code modulation (DPCM) coder, which has fixed length outputs and high bit rates. In order to improve the performance of traditional DPCM coders, the scalar quantizer should be replaced by the vector quantizer (VQ). As the bit rate increases, it will be nearly impossible to implement a conventional VQ or modified VQ, such as the tree-structured VQ, even if the modified VQ can significantly reduce the encoding complexity. SAPQ has a form of the feed-forward adaptive scalar quantizer having a short adaptation period. However, since SAPQ is a structurally constrained VQ, SAPQ can achieve VQ-level performance with a low encoding complexity. Since SAPQ has a scalar quantizer structure, by using the traditional scalar value predictors, we can easily apply SAPQ to DPCM coders. For synthetic data and real images, by employing SAPQ as the quantizer part of DPCM coders, we obtained a 2~3 dB improvement over the DPCM coders, which are based on the Lloyd-Max scalar quantizers, for data rates above 4 b/point.