Earticle

이 연구에서는 지체장애인의 건강증진 요구도를 분석하는데 연구의 목적이 있다. 연구참여자는 지체장애인을 모 집단으로 선정하고, 눈덩어리 추출법을 통해 연구대상자를 선정하여 총 15명의 연구참여자를 통해 자료를 수집하였다. 자료 분석은 해던매트릭스 기법과 시간 중심 매트릭스 기법을 통해 자료를 분석하였다. 도출된 결과는 다음과 같다. 첫째, 전 생애주기를 통틀어 당사자의 노력에 대해서는 발생 직후는 야외활동, 발생 이후는 인식개선, 주요기관에 대한 요구도 는 발생 직후는 건강검진 지원, 발생이후는 생애주기별에 따라 차이가 나타났다. 물리적 환경에 대한 요구도는 발생 직후 와 이후 모두 장애인 시설표기로 나타났다. 관련정책에 관한 요구도는 발생 직후는 찾아오는 서비스가 가장 중요한 것으로 나타났다. 둘째, 생애주기별에 따라 청년기는 정보제공, 중장년기는 장애인 시설 표기, 노년기는 복지관 협소화로 나타났 다. 이러한 결과를 바탕으로 향후 장애인 정책수립에 기초자료로 제공하는데 의의가 있다.

The purpose of this study is to analyze the health promotion needs of people with physical disabilities. The research participants selected the physically handicapped as the population, and the research subjects were selected through the snowball extraction method, and data were collected through a total of 15 research participants. Data analysis was conducted through the Haddon matrix method and the time-centered matrix method. The derived results are as follows. First, for the efforts of the person concerned throughout the entire life cycle, there were differences according to outdoor activities immediately after occurrence, awareness improvement after occurrence, health checkup support immediately after occurrence, and life cycle after occurrence. The level of demand for the physical environment was indicated by the facility mark for the disabled both immediately after and after the occurrence. As for the degree of demand for related policies, the service to be visited was found to be the most important immediately after the occurrence. Second, according to the life cycle, information was provided in the youth, facilities for the disabled were indicated in the middle and old age, and welfare centers were narrowed in the elderly. Based on these results, it is meaningful to provide basic data for future policy establishment for the disabled.

Peak signal reduction is a critical problem in orthogonal frequency-division multiplexing (OFDM) systems. Herein, we focus on Zadoff?Chu matrix (ZCM) precoding as a peak signal reduction method and analyze its integration using the discrete Fourier transform process. The analysis reveals that the integrated process can be substituted by a sparse matrix multiplication and the influence of ZCM parameters on the sparse matrix is mathematically clarified. The results also show that the ZCM precoding works to produce a single-carrier signal and explains how the ZCM precoding reduces the peak of the OFDM signal.

Present study, it is demonstrated that MMP-9 serum as well as follicular concentrations are related to a successful IVF resulting in pregnancy. Currently, a limited number of studies have investigated intrafollicular and serum MMPs, with inconsistent conclusions. However, MMPs theoretically could be important players in IVF processes. Moreover, different behaviors of MMP-2 and MMP-9 during the embryo development were confirmed; only MMP-9 has shown a vast difference between follicular and maturation oocyts. The main objective of this study is to examine the mode of MMPs activation during bovine in vitro fertilization. In particular, the relative employment of two major embryo culture medium in embryo development; e.g. ES(non-bovine serum) and CR(bovine serum) was compared. This results found that the level of MMP-2 and MMP-9, which degrades basal membrane, was different in the ES and CR in cultured at each stage of embryo development. In ES cultured system, MMP-9 was highly expressed throughout blastocyst inner cell mass and exhibited strong gelatinase activity. The MMP-9 expression continually increased as the embryo develops from oocyte maturation to fertilization, Meanwhile, the level of MMP-2 remained insignificant throughout these periods. However, decreased MMP-2 and 9 expression on the CR culture system. Interestingly, MMP-9 was actively expressed in ES culture system, inner cell mass is showing levels higher than trophoblast cell. Our result suggests a possibility that different subtype of MMP partakes major functions in the remodeling of inner cell mass in blastocyst. Such differences in MMP expression may impact to the distinct mode of follicular development in the two species.

산사태 발생시점 및 지점을 예측하기 위한 연구는 서로 다른 목적과 범위로 구성되었지만 상호보완 적인 역할을 한다. 따라서 이 연구에서는 산림청에서 구축한 산사태 예보체계와 산사태위험지도의 활용성을 높이고자 정적 산사태위험도를 동적 산사태위험도로 변환하고, 이를 평가하기 위해 시공 간적 위험도의 매트릭스 결합을 수행하였다. 2017년 산사태 발생지인 충청남도 천안시의 시나리오 및 실제 산사태 발생시점을 대상으로 다양한 매트릭스 평가모형을 적용한 결과, 간단한 행렬 조합만 으로 동적 산사태위험도의 정량적 평가를 가능케 하였으며, 정확도 또한 기존의 산사태위험지도에 비해 높게 나타났다. 또한 산림청에서 제공하는 1시간 이후의 산사태 예측정보와 결합을 통해 단기 적인 미래의 동적 산사태위험도를 평가할 수 있는 점에 의의가 있다. 이 연구결과는 기구축된 국가 산사태 예보체계와 산사태위험지도의 활용성을 극대화함과 동시에 우기 시의 산사태위험지 관리 효율성 향상에 기여할 수 있을 것이다.

The models to predict when and where a landslide occurs were constructed with different purposes and scopes, but tended to be complementary to each other. The objective of this study was to convert the static landslide hazard into the dynamic landslide hazard and combine a spatiotemporal hazard matrix to assess it, in order to enhance the usability of the early warning system for landslide and the landslide hazard map developed by the Korea Forest Service. We applied various matrix evaluation models to develop scenarios and assess the 2017 landslide occurred in Cheonan, Korea. The results of this study showed that a simple combination of matrices facilitated quantitative evaluation of the dynamic landslide hazard and its accuracy was higher than the static landslide hazard map. In addition, the dynamic landslide hazard can be assessed for the near future by integrating the 1-hour prediction data provided by the Korea Forest Service. The results of this study can help maximize the utilization of the existing national landslide forecast system and landslide hazard map, which should enhance the efficiency of managing landslide-prone zones during the rainy season.

Purpose: This study introduces a methodological framework for muscle synergy analysis to enhance the understanding of sports rehabilitation researchers regarding its practical applications. This work is intended to provide clinicians with a practical understanding of muscle synergy analysis and promote its effective application in rehabilitation. Methods: Muscle synergy refers to the concept of explaining muscle coordination during movements as a combination of a limited number of modules (synergies), thereby offering a powerful approach for quantifying muscle activation patterns. In this framework, electromyography (EMG) signals are decomposed using a nonnegative matrix factorization algorithm, and the optimal number of synergies is determined based on the “variance accounted for” criterion. Each synergy represents a distinct group of muscles, specifying their activation timing and relative contributions throughout movement. To facilitate comprehension, we present a case study employing simulated two-channel EMG data, assuming a single synergy. Results: The dataset included five different signal patterns reflecting proportional, inverse, and independent relationships, mimicking real-world EMG signals observed in sports and clinical settings. Conclusion: This work is intended to provide clinicians with a practical understanding of muscle synergy analysis and promote its effective application in rehabilitation.

이 연구는 현대 전장 환경에서 인지적 수행 역량과 심리적 준비 태세가 전력 유지의 중요한 요소로 주목받는 상황을 고려하여, 한국군에 적용가능한 전력 강화 과제를 도출하는 것을 목적으로 하였다. 국내외 학술논문, 국방 및 보건정책 문서, 법령과 훈령 및 공개 평가자료를 수집하여 비교 매트릭스 분석을 수행하였다. 구체적으로 한국군의 심리학 활용 체계를 선발 및 복무 적합, 정신전력과 무형전력, 정신건강 증진 및 상담, 자살예방과 고위험군 개입, 병영조직문화, 전역 이후 지원, 연구 및 정책 개선의 7대 영역으로 구조화하여 현황과 한계를 진단하고, 미국·영국·캐나다·이스라엘의 제도 및 프로그램 운영 원리를 비교 분석하였다. 분석 결과 한국군은 전수 선별 및 정밀평가 체계, 정신전력 교육, 병영생활 전문상담관 제도를 포함한 다차원적 상담 및 진료 인프라, 국방 헬프콜 포함 위기상담 체계 등 제도적으로 폭넓은 지원 기반을 갖추고 있었다. 반면 비교 대상 국가들은 선발 정보를 보직 배치와 성과 준거에 연계하여 타당도를 점검하고, 회복탄력성 및 동료 기반 현장 개입을 예방훈련으로 제도화하며, 근거 기반 치료 표준화와 장기 추적 자료에 기반한 연구 및 정책의 연계를 강화하는 경향이 확인되었다. 이를 토대로 이 연구는 선발 데이터 활용 범위의 보직 및 초기 적응지원으로의 확장, 정신전력 교육에 회복탄력성과 전투 스트레스 및 급성 위기 대응 기술 통합, 상담과 진료 및 사례관리 표준화, 전역 이후까지 연계되는 성과관리 파이프라인 구축을 제언한다. 결과적으로 이러한 개선 방향은 한국군 전력강화가 보편적 지원, 위험군 선별, 집중적 개별 지원이 연속적으로 연결되는 다층 지원체계의 관점에서 통합적으로 이해될 필요가 있음을 시사한다.

This study aimed to identify strategic tasks for enhancing military capability within the Republic of Korea (ROK) Armed Forces, emphasizing the growing significance of cognitive performance and psychological readiness for maintaining combat effectiveness in modern operational environments. A document-based analysis was conducted, utilizing domestic and international academic literature, defense and public health policy documents, legal and regulatory materials, and publicly available evaluation reports, through a comparative matrix approach. The military psychology application system of the ROK Armed Forces was organized into seven domains: selection and service suitability, mental force and intangible capabilities, mental health promotion and counseling, suicide prevention and high-risk intervention, organizational culture, post-discharge support, and research and policy development. This structure was used to assess its status and limitations, comparing it to systems in the United States, the United Kingdom, Canada, and Israel. The findings reveal that the ROK Armed Forces have established a robust institutional foundation, including comprehensive screening and evaluation systems, mental force education, multi-layered counseling and medical services such as the military counseling officer system, and crisis intervention mechanisms like the Defense Helpline. In contrast, the comparison countries more effectively connect selection data to job placement and performance criteria, institutionalize resilience training and peer-based interventions, and strengthen ties between evidence-based treatment, long-term data tracking, and policy development. Based on these insights, the study recommends expanding the use of selection data for job assignment and early adaptation support, incorporating resilience, combat stress, and acute crisis response skills into mental force education, standardizing counseling, medical, and case management processes, and establishing a performance management pipeline that extends into the post-discharge phase. These recommendations are best understood within a multi-tiered support system, systematically integrating universal support, risk screening, and intensive individualized interventions.

지역주민의 삶과 사회의 질을 보여주는 기준이 지역사회복지지표이다. 삶과 사회의 질 향상을 위해서는 지역사회복지계획과 네트워크 활동에 부합되고 지역적 특성을 고려한 지역사회복지지표의 개발이 요구되고 있다. 본 연구는 수원시에 적합한 지역사회복지지표 설정을 위한 기초연구를 하는 것이다. 이론적으로 사회지표에 대한 삶의 질과 사회의 질을 결합한 관점을 토대로 하였다. 연구방법으로 매트릭스 분석을 활용하였으며, 수원시를 대상으로 현황 고찰과 기존 관련 지표를 분석하였다. 연구결과, 주제별 대지표 15개와 대상별 대지표 9개로 구성된 매트릭스형 지역사회복지지표(안)를 제시하였다. 최종 하위 지표로서 총 341개의 개별지표가 선정되었다. 결론적으로, 복지지표의 이론적 관점 정립, 지표의 설계와 정기적이고 체계적인 기초 통계자료의 축적과 관리, 통계현황 이외에 새로운 지표의 개발, 제안된 지표를 통해 지역사회복지계획 수립 및 적용 등을 제안하였다.

The social indicator is the standard on quality of life and society for resident in community. Based on community status, it is necessary to develop on the social indicator which is matched the social plan in community and quality of life and society in recent year. The purpose of this study is to develop on the exploratory social indicators for community welfare in Suwon city. Theoretically, the author discuss on perspectives which combined quality of life and society for social indicators. For research methodology, it applied to matrix analysis and analyzed on status and the existing index in Suwon. According to the analysis, it was found that X axis was the field of client which was related with community welfare plan. Y axis was theme which was correlated with Korea Social Index. The results showed that the matrix involved 15 index as theme and 9 index as client. The detail was selected by 341 index as individual items. The author proposed Community Welfare Matrix Index (CWMI). Finally, the implication of this study include theoretical approach of welfare index, systematic design, accumulation and management of basic statistic data, development of new version index, and utilization and planning for social plan in community due to the suggested CWMI.

The purpose of this study is analyze the housing welfare service in Busan. Documentary research and content analysis method and survey used in this study. Housing welfare is not simply adding welfare service to housing, but approaching welfare - level housing policy and realizing housing rights as basic rights. As the demand for housing welfare grows, limited resources, urban social characteristics, demographic change and social conditions of the local government will be limited by the central government 's housing welfare policy. The housing welfare policy of Busan City was limited to the central government policy and played the role of policy executor. Based on these problems, this study aims to present the direction of practical housing welfare policy by analyzing the current housing environment and housing welfare policy of Busan citizen. In this study, we examine the development of universal housing and housing welfare policy in Korea, the case of welfare policy establishment in Jeonju and Seoul, and propose a policy direction through analysis of housing welfare policy matrix in Busan.

복지정책의 경제적 파급효과를 분석함에 있어 기존의 산업연관분석 방법을 이용하는 경우 기본적으로 생산활동부분만을 다루기 때문에 제조업부문과의 요소투입을 통한 연관관계가 약한 복지부문의 경우는 소비부문을 포함한 경제 전반에 걸쳐 작용하고 있는 인센티브에 의한 자원배분에의 기여도를 과소평가 받기 쉽다. 복지정책의 종합적인 효과를 평가하기 위해서는 생산부문뿐만 아니라 가계‧정부 등 소비부문까지 포함하여 우리 경제의 흐름을 일괄하는 일반균형분석의 도입이 요구된다. 이에 본 연구는 2003년도 한국경제의 소득창출 및 소득분배 과정을 보여주는 사회회계행렬(SAM)을 작성하여 정부의 복지지출이 경제부문별 명목소득 증대에 미치는 경제적 파급효과를 분석하고, 경제의 외생적 최종수요 증가에 대하여 가계소득과 생산활동부문의 상대소득이 어떻게 반응하는지를 분석하였다. SAM 명목승수 분석 결과 공공행정 및 국방부문과 교육‧의료‧보건‧사회복지사업 등 복지부문은 산업연관분석에서 경제적 파급효과가 과소평가되었으나, 일각에서 우려하고 있는 소비성 지출이라는 주장과는 달리 제조업이나 일반 서비스업에 비하여 오히려 후방연관효과가 크게 나타나 국민경제에 대한 영향력이 큰 부문으로 분석되었다. 특히 이들 부문은 각 생산활동부문간의 상호의존관계 정도를 전산업 명목승수의 평균치를 기준으로 한 상대적 크기로 비교한 영향력 계수도 크게 나타났다. 또한 소득이 작은 가계일수록 생산활동부문으로부터의 소득증가 및 소득재분배 효과가 작게 나타났다. 저소득분위의 재분배소득승수가 교육‧의료‧보건‧사회복지사업 등 정부서비스 분야에서 상대적으로 높게 나타나는 점을 감안할 때 소득분배 개선을 위해서는 이들 정부생산부문에 대한 지출의 확대가 필요함을 시사한다.

I constructed the 2003 Korean ‘social accounting matrix’(SAM) to analyze the multipliers of total demand for each economic activity. I find that the relative magnitude of the influence of the welfare policy to the national economy measured by input-output production multipliers tends to be underestimated compared to SAM multipliers. This is because the total demand multipliers of SAM include the private sector effects, which is not considered in the input-output model. The result also support that income inflows in public service areas including education, health and social work, generate gains in the relative income of households.

Background: Astragali radix (A) and Lithospermi radix (L) have long been used as traditional medicines due to their known antiinflammatory effects. This study aimed at evaluating, their optimal mixing ratio and their functional compounds by investigating the inhibitory effects of mixed extracts of A and L and their active compounds on matrix metalloproteinases (MMPs). Methods and Results: A and L extracts were obtained by extraction at 80℃ using 50% and 70% fermented alcohol, respectively, and then mixed at a ratio of 5 : 5, 6 : 4, 7 : 3 and 8 : 2 (w/w). The activities of MMP-1, MMP-3, and MMP-13 were evaluated in interleukin-1beta (IL-1β)-induced SW1353 cells. The extract mixtures showed synergistic inhibitory effects on MMP-3 and MMP13, higher than the effects of the individual A and L extracts. The 7 : 3 mixture (ALM16) showed the most effective MMPs inhibitory activity, while among the active ingredients, calycosin-7-O-β-D-glucoside and lithospermic acid exhibited excellent MMPs inhibitory activity. Additionally, an HPLC method was established for simultaneous quantification of the effective components of the extract mixtures, and validated by measuring the linearity, precision and accuracy of the limit of detection (LOD) and limit of quantification (LOQ). Conclusions: ALM16 showed the most effective MMPs inhibitory activity. Calycosin-O-β-D-glucoside, calycosin and lithospermic acid were identified as useful candidates, as they were the major functional compounds in the MMP inhibitory activity. Summarily, ALM16 might be a highly effective in osteoarthritis management, owing to its because it exhibits a protective effect on cartilage via excellent inhibition of MMPs.

Matrix metalloproteinases (MMP) play important roles in extracellular matrix (ECM) remodeling during ovarian follicular development, oocytes development and ovulation. In an attempt to investigate the effect of MMP activation in development cumulus-oocytes complexes, we examined the localization and expression of MMP, and monitored MMP expression profile. Cumulus-oocytes complexes were collected and matured in vitro for 24 hr, 36 hr and 48 hr. A mRNA expression of MMP-2, MMP-9, TIMP-2 and TIMP-3 was detected in all culture medium regardless of CC, OC and COCs. Activity of MMP-2 in the OC progressively was increased from 24 hr to 48 hr. But MMP-9 was not detected in all culture medium. The localization of MMP-2 was also measured by immunohistochemistry analysis. The MMP-2 and TIMP-2 was detected in cumulus cell and oocyte zone pellucida. Expression of MMP-2 protein in the COCs was progressively increased from 24 hr to 48 hr. However, MMP-9 protein was progressively decreased from 24 hr to 48 hr. And TIMP-2 protein was most highly expressed in the COCs 36 hr. Expression of TIMP-3 protein in the COCs was progressively increased from 24 hr to 48 hr. In conclusion, these results suggest that MMP-2 plays a role in maintaining normal maturation and development by controlling the ECM inhibitor concentration on cumulus cell and oocytes.

RFID 시스템은 교통, 출입통제 비롯한 여러 분야에서 활용되고 있다. RFID 시스템에 대한 보안위협 또한 증가하여 정보보안에 대한 연구가 진행되고 있다. 본 논문에서는 행렬기반 RFID 인증 프로토콜을 제안하고 기존에 제안된 프로토콜과 효율성을 비교하고 안전성을 분석한다. 제안된 인증 프로토콜은 도청, 재전송 등의 공격에 안전하며, 서버의 계산량을 줄여 성능면에서 효율이 우수한 장점을 갖는다.

RFID system is used in several fields such as traffic and access control. The study about RFID security is actively progressed as security threat has been increased. This paper suggests matrix-based authentication protocol. And we analyze the safety of authentication protocol and compares the effectiveness of the protocol with other authentication protocols. The suggested authentication protocol secures from wiretapping attack, replay attack, and spoofing attack, and reduces overload of back-end database so that has efficient performance.

본 연구에서는 제주특별자치도 주민의 행복도를 높이는 요인들의 중요도와 만족도의 차이는 어떠한지 그리고 어떤 요인을 가장 우선적으로 높여야 행복도 수준이 높아지는지에 대해 알아보기 위하여 IPA 분석을 실시하고, 선택과 집중을 해야 하는 민생시책을 탐색하는데 목적을 두었다. 조사대상은 제주특별자치도의 지역주민 1,050명이며, IPA 분석을 실시한 결과는 다음과 같다. 첫째, 행복도에 영향을 미치는 요인에 대한 영역별 중요도와 만족도의 차이에서 16개의 영역 모두 ρ<.001 수준에서 유의한 차이를 보였다. 가장 큰 차이를 보인 영역은 ‘건강’이었고, 다음으로 ‘경제’, ‘복지’, ‘행정’이었다. IPA 매트릭스의 2사분면에 속한 영역 역시 ‘건강’ 영역으로 나타나, 제주도민의 행복도를 높이기 위해서는 건강영역에 가장 우선적으로 비용과 노력을 투자해야 하는 것으로 이해할 수 있다. 둘째, 행복도에 영향을 미치는 요인에 대한 항목별 중요도와 만족도의 차이에서는 98개 항목 모두 ρ<.001 수준에서 유의한 차이를 보였다. 가장 큰 차이를 보인 항목은 ‘종합병원수준’으로 나타났다. IPA 매트릭스의 2사분면에 속한 항목은 총 11개로 의료여건, 의사수준, 종합병원수준, 경찰서비시수준, 물가수준, 먹거리안정성, 직업선택기회, 지역미래개선가능성, 실직대책, 여가에 대한 만족도, 나의소득수준이었으므로, 이에 대한 우선적인 민생시책 발굴이 요구된다.

This paper attempts to measure the difference between the importance of and satisfaction with the factors affecting happiness of local residents in Jeju Province, to prioritize the policy measures using select and concentration strategy , and to put forward policy implications for local governments to enhance happiness of their residents. For this research purpose, IPA Matrix analysis method was employed. The 1, 056 local residents in Jeju Province responded to the questionnaire designed for this research. The analysis results are summarized as follows. First, it is discovered that health area is the most important one to be tackled from policy point of view, followed by economy, welfare, and public adminstration. It indicates that Jeju Provincial Government should primarily focus on improving health system for local residents. Second, the itemized analysis of the difference between the importance of and satisfaction with factors affecting residents’a happiness shows that conditions of general hospitals located in the region should be preferentially ameliorated.

인류는 3차 산업을 통해 오염된 대기에 노출되어 있다. 그 중 미세먼지는 호흡기 질환의 원인으로 사람에 게 유해할 뿐만 아니라 국내에서는 미세먼지를 해결하고자 하는 필요성이 강조되고 있다. 이에 따라, 다공성을 갖 는 입상형 코르크를 사용한 흡착 경화체의 특성을 검토하고자 한다. 실험계획은 다공성 물질인 입상형 코르크의 첨가율을 0~10(%)범위로 하고 간격을 2.5%로 두었다. 실험항목은 유동성, 밀도, 휨강도, 공기량, 흡수율, 압축강도 및 미세먼지 농도를 측정한다. 실험결과, 입상형 코르크의 첨가율이 증가할수록 흡수율 및 공기량은 증가하였고 유동성, 밀도, 휨강도, 압축강도 및 미세먼지 농도는 감소하였다. 따라서, 입상형 코르크의 첨가율이 증가할수록 미 세먼지 농도가 감소하기 때문에 유해물질을 흡착시킬 수 있다. 또한, 배합과정에서 코르크의 적정한 수분을 함유 시켜준다면 강도가 향상될 뿐만 아니라 비빔과정에서 배합수가 영향을 받지 않아 비빔과정이 수월해질 수 있다고 판단된다.

Humanity is exposed to polluted air through tertiary industry. Among them, fine dust is not only harmful to humans as a cause of respiratory diseases, but also the need to solve fine dust in South Korea is being emphasized. In response to such a problem, the need to solve fine dust in South Korea is being emphasized. Accordingly, the purpose of this study is to examine the properties of an adsorption matrix using porous granular cork. The experimental plan set the addition ratio of granular cork, which is a porous material, in the range of 0 to 10 (%) and the interval was set at 2.5%. Experimental items measure table flow, density, flexural strength, air content, absorption rate, compressive strength, and fine dust concentration. As a result of the experiment, as the addition ratio of granular cork increased, the absorption rate and air content increased, and table flow, density, flexural strength, compressive strength and fine dust concentration decreased. Therefore, as the addition ratio of granular cork increases, the concentration of fine s, Granular cork, Porous substancesdust decreases, so that harmful substances can be adsorbed. In addition, if the cork contains appropriate moisture in the mixing process, strength is improved, and it is judged that the mixing process can be made easier because the mixing water is not affected during the mixing process.

본 논문에서는 유도 전동기의 결함을 조기에 검출하고 진단하기 위해 단시간 에너지와 특이치 분해 방법을 이용한 특징 벡터 추출 방법을 소개하고, 추출한 특징 벡터를 서포트 벡터 머신의 입력으로 사용하여 유도 전동기의 결함을 유형별로 분류하는 방법을 기술한다. 또한 본 논문에서는 특이치 분해를 위한 행렬 구성 방법에 따른 성능을 분석한다.

This paper introduces a feature extraction method using short-time energy (STE) and singular value decomposition (SVD) for early fault detection of an induction motor. In addition, this paper describes a fault classification method using a support vector machine (SVM) to classify each fault of the induction motor by employing an extracted feature vector as an input of the SVM. Moreover, this paper analyzes the performance of the different SVD matrix configurations.

경범죄는 공공질서를 유지하고 지역사회의 안정성을 확보하는 데 중요한 역할을 하지만 기존연구는주로질적접근에집중되어 있어실증적데이터분석이부족하였다. 이에 본 연구는 대전경찰청 경범죄 단속자료를 이용해 BCG Matrix를 응용한 ‘Policing Matrix’로 범죄 발생 패턴을 분석하였고, 분석결과 자치구별 경범죄 유형의 분포 및 증가율에 일정한 차이가 존재함을 확인하였다. 이 분석결과를 바탕으로 Policing Matrix를 치안전략 도구로 활용한 지역특화 대응전략 구상과 법령의 실효성 제고를 제안한다. 결론적으로 본 연구는 경범죄 연구 분야에서 드물었던 양적 연구 방법을 활용하여 실증적 데이터를 기반으로 정량 분석과 Policing Matrix라는 전략적 시각화 도구를 접목하고자 하였으며 이를 통해 향후 실효성 있는 경범죄 예방 및 대응 정책의 초석이 되기를 기대한다.

Minor offenses play a crucial role in maintaining public order and ensuring the stability of local communities. However, existing research has primarily focused on qualitative approaches, resulting in a lack of empirical data analysis. To address this gap, this study analyzes minor offense enforcement data from the Daejeon Metropolitan Police Agency using the "Policing Matrix," an analytical model adapted from the BCG Matrix. The results reveal notable variations in the distribution and growth rates of offense types across administrative districts. Based on these findings, the study proposes the use of the Policing Matrix as a strategic policing tool to design region-specific enforcement strategies and to enhance the practical effectiveness of related legislation. In conclusion, this research contributes to the underexplored field of quantitative studies on minor offenses by combining empirical data analysis with a strategic visualization framework, and it aims to lay the groundwork for more effective and responsive policies in the prevention and control of minor offenses.

The random dynamic forces experienced by structure due to wind are caused primarily by the turbulence in the approaching flow and motion of the structure. In the paper, fluctuating wind velocity for time history analysis are simulated by multi-dimensional random processes using Karman spectrum about along-wind direction and Liang spectrum about across-wind direction. This paper is analyzed and obtained the dynamic response for structures modeled as a plane frame. This study uses the stiffness method and static condensation method to determine the condensed stiffness matrix that corresponds to the lateral displacement coordinates at the various levels of the building. The numerical results, obtained by the Newmark-β method, shows the time- history responses and trends of maximum accelerations and displacements by applying various load conditions. In the paper, the values of dynamic reponse to the structure modeled as a plane frame will be discussed with the values of dynamic reponse to the structures modeled as a shear building. For the building that is modeled as a plane frame, lateral displacements and accelerations are greater than the values obtained in modeled as a shear building.