• Fisheries and Aquatic Sciences
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• 제15권3호
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• pp.183-190
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• 2012

The purpose of this study was the purification and characterization of an angiotensin I converting enzyme (ACE) inhibitory peptide purified from enzymatic hydrolysates of rainbow trout Oncorhynchus mykiss muscle. After removal of lipid, the approximate composition analysis of the rainbow trout revealed 24.4%, 1.7%, and 68.3% for protein, lipid, and moisture, respectively. Among six hydrolysates, the peptic hydrolysate exhibited the highest ACE inhibitory activity. We attempted to purify ACE inhibitory peptides from peptic hydrolysate using high performance liquid chromatography on an ODS column. The $IC_{50}$ value of purified ACE inhibitory peptide was $63.9{\mu}M$. The amino acid sequence of the peptide was identified as Lys-Val-Asn-Gly-Pro-Ala-Met-Ser-Pro-Asn-Ala-Asn, with a molecular weight of 1,220 Da, and the Lineweaver-Burk plots suggested that they act as a competitive inhibitor against ACE. Our study suggested that novel ACE inhibitory peptides purified from rainbow trout muscle protein may be beneficial as anti-hypertension compounds in functional foods.

• ETRI Journal
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• 제45권3호
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• pp.534-542
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• 2023

The large amount of secondary effects in complementary metal-oxide-semiconductor technology limits its application in the ultra-nanoscale region. Circuit designers explore a new technology for the ultra-nanoscale region, which is the quantum-dot cellular automata (QCA). Low-energy dissipation, high speed, and area efficiency are the key features of the QCA technology. This research proposes a novel, low-complexity, QCA-based one-bit digital comparator circuit for the ultra-nanoscale region. The performance of the proposed comparator circuit is presented in detail in this paper and compared with that of existing designs. The proposed QCA structure for the comparator circuit only consists of 19 QCA cells with two clock phases. QCA Designer-E and QCA Pro tools are applied to estimate the total energy dissipation. The proposed comparator saves 24.00% QCA cells, 25.00% cell area, 37.50% layout cost, and 78.11% energy dissipation compared with the best reported similar design.

• 한국콘텐츠학회논문지
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• 제14권5호
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• pp.166-178
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• 2014

본 연구는 노인요양시설의 서비스지향성이 친사회적 행동에 미치는 영향을 파악하기 위해 서울특별시 노인요양시설 종사자 80개 시설 400명을 대상으로 우편조사 및 방문을 통하여 조사를 하였다. 설문응답은 61개 시설 302명이였으며, 최종 설문분석에는 297명의 종사자가 분석에 사용되었다. 주요한 연구내용으로는 첫째, 노인요양시설 종사자의 친사회적행동의 수준은 3.84로, 서비스지향성의 전반적인 수준은 3.69으로 5점 만점에 비교적 높게 나타났다. 둘째, 회귀분석에 의하면, 리더십수행(B=.004, P=.938), 서비스태도(B=.031, P=.476), 인적자원관리(B=.147, P=.003), 서비스시스템(B=.175, P=.001)은 친사회적행동에 의미 있게 영향을 미치는 것으로 나타났다. 특히, 서비스지향성의 하위요소 중 인적자원관리와 서비스시스템이 친사회적 행동에 영향을 미치는 요인으로 나타났다. 이를 토대로 본 연구에서는 노인요양시설에서 인적자원관리를 위해 종사자 능력을 향상시키기 위한 프로그램과 서비스시스템의 효율적 구축을 위한 방안을 제시하였다.

• 국제학술발표논문집
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• The 1th International Conference on Construction Engineering and Project Management
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• pp.719-724
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• 2005

It has been debating on the performance evaluation of professional construction management (PCM) services since its introduction to Taiwan's construction industry more than a decade ago. Several evaluation systems were proposed by previous researchers. However, there has no comparison study been conducted for the feasibility, effectiveness, and appropriateness of these systems to the performance management (PM) of practical PCM services. This paper is intended for this end to compare the existing PCM performance evaluation systems in Taiwan. A real world design/build (D/B) building project was selected for case study. The result of case study concludes and compares the pro's and con's of the three systems. At the end, it recommends strategies for selecting the most appropriate PCM performance evaluation for PCM services.

• 한국식품영양학회지
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• 제25권4호
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• pp.1039-1046
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• 2012

The purpose of this study was to lay emphasis on the importance of a restaurateur's role and qualities as well as to provide the restaurateur information necessary to effectively run a restaurant. To address the purpose, this study analyzed the qualities of a restaurateur and determined the influence they have on the business results, via conducting a survey with 117 restaurateurs from June 11th to June 26th 2011. In summary, male restaurateurs were higher in the vision directivity, desire to learn, accomplishment, challenge and pro-activity than their female counterparts, with a significant difference of p<0.05. According to their ages, the surveyees showed significant differences in the vision directivity (p<0.05), desire to learn (p<0.01), challenge (p<0.01) and pro-activity (p<0.01). In addition, also the survey revealed that the qualities of a restaurateur had a significant influence on financial performance, a sense of satisfaction and business results (p<0.001). The questionnaire resulted in the following: first, the vision directivity (p<0.05) and the challenge (p<0.05) affected the financial performance; second, the challenge had influence on the sense of satisfaction; and last, the vision directivity (p<0.05) and the challenge (p<0.05) had an effect on the business results. Thus, the study concluded that restaurateurs need two qualities: (i) the vision directivity in order to meet their goals and to have a higher business results and (ii) the challenge to try new managing methods in order to cope with the ever-changing environment.

• 한국정보과학회논문지:시스템및이론
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• 제27권1호
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• pp.68-80
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• 2000

모듈화된 구조를 지향하는 현대 소프트웨어 기술의 발전은 캐시 메모리의 성능에 큰 변화를 가져오고 있다. 최근 운영체제 분야에서 새로운 설계 기술로 부각되고 있는 마이크로커널은 모듈화된 구조를 가지고 있어 이식성과 확장성이 우수하지만, 모노리딕 커널에 비하여 성능이 저하되는 현상을 보이기도 한다. 본 논문에서는 마이크로커널 기반 운영체제에서 발생하는 성능 저하의 근본적인 원인을 규명하기 위하여, 커널의 구조적 특성이 캐시 메모리의 성능에 미치는 영향을 정량적으로 분석하였다. Intel Pentium Pro 프로세서 상에서의 실험 결과， 마이크로커널 구조는 모노리딕 커널 구조에 비하여 L1, L2 캐시와 TLB 접근 실패율을 크게 증가시키며, IPC 보다는 캐시 메모리의 효율성이 운영체제 성능에 미치는 영향이 더욱 크다는 사실을 발견하였다. 그리고, 이러한 현상은 마이크로커널의 구조적 특성으로 인하여 빈번히 발생하는 문맥 교환의 영향임을 확인하였다.

• PNF and Movement
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• 제21권1호
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• pp.1-10
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• 2023

Purpose: This systematic review aims to determine whether robot-assisted training is more effective in gait training for persons with subacute hemiparetic stroke. Methods: This study adopted a systematic review study design focused on subacute hemiparetic stroke, and four core academic databases were searched until June 11, 2021, for relevant studies, including PubMed, Embase, the Cochrane Library, and ProQuest Central. The review included randomized controlled trials (RCTs) evaluating the effects of robotic-assisted training on gait performance in persons with a diagnosis of subacute hemiparetic stroke. The selected RCT studies were qualitatively synthesized based on the population, intervention, comparison, outcome, settings, and study design (PICOS-SD). Results: The study selected five RCTs involving 253 subacute hemiparetic stroke patients and performing robotic-assisted gait training using the following devices: the Lokomat, Morning Walk, Walkbot, ProStep Plus, or Gait Trainer II. Five RCTs were eligible for the meta-analysis after quantitative synthesis, and the results showed that the robot-assisted gait training group had a greater gait performance than the control group based on the 10-meter walk test, Berg balance scale, Rivermed mobility index, functional ambulation category, and modified Barthel index. Conclusion: The results of this study showed that the gait performance of subacute hemiparetic stroke patients changes throughout robot-assisted gait training, but there were no indications that any of the clinically relevant effects of robot-assisted training are greater than those of conventional gait training. Further, the small sample size and different therapeutic intensities indicate that definitive conclusions could not be made.

• JSTS:Journal of Semiconductor Technology and Science
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• 제1권2호
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• pp.116-124
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• 2001

We implemented POPeye (Probe of Performance ＋ eye), a system analysis simulator to evaluate DRAM performance in a personal computer environment. When running any real-life application programs such as Microsoft Office and Paint Shop Pro on Windows OS, POPeye simulates detailed transactions between a CPU and a memory system. Using this tool, we comparatively analyzed the performance of a DDR-SDRAM, a D-RDRAM, and a DDR-FCRAM.

• 한국조리학회지
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• 제14권2호
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• pp.46-60
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• 2008

In the hotel industry, there are the production and consumption of services at the same time, considering direct contact between employees and customers. In this respect, this study was conducted based on more practical factors to grasp employees' feelings and conflicts. The results of this research are as follows. First, individual conflicts among hotel banquet employees influence devotion to the organization which has a direct effect on performance of management. Second, such devotion is closely correlated with the factors of the performance of management. Finally, managing employees' conflicts is the key factor to promote the performance of management. Under these circumstances, there should be more concern in solving problems among employees and special pro-grams for promoting job satisfaction and devotion which bring about more profits as well as a sense of achievement.

• 벤처창업연구
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• 제18권2호
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• pp.1-20
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• 2023

본 연구는 조직의 전략적 의사결정 및 행동경향으로 사회적기업의 고유한 기업가적 행동 속성을 식별하여 영리기업과 구별되는 사회적기업가정신 모형을 도출하고 이를 설명하는 사회적기업가정신 프레임워크를 제안하는 것을 목적으로 한다. 연구의 목적을 효과적으로 달성하기 위하여 선행연구를 검토하고 이를 토대로 근거이론방법으로 질적연구를 수행하였다. 일련의 분석과정을 통하여 '사회적기업가정신: 사회적가치지향성; 혁신성; 진취성; 위험감수성; 협력지향성' 모형을 새롭게 제안하고 식별된 하위요인들 간의 관계성을 고찰하여 모형을 통합적으로 설명하는 '사회적기업가정신 프레임워크'를 개발하였다. 프레임워크는 사회적기업가정신을 '친사회적 동기(Pro-social motivation)', '친사회적 행동(Pro-social behavior)', '기업가적 행동(Entrepreneurial behavior)' 속성으로 구분하고 이를 사회적기업가정신 모형을 구성하는 각 하위요인들과 연결하여 설명하였다. 본 연구가 선행연구와 구별되는 가장 두드러진 차별성은 조직차원의 행동적 관점에서 사회적기업가정신을 구성하는 하위요인으로 '협력 지향성(Cooperation orientation)'을 식별하여 추가한 부분이다. 연구를 통해 사회적·경제적 목적을 동시에 추구하는 사회적기업의 독특한 특성인 하이브리디티(Hybridity)와 이로 인한 자원 제약 환경 속에서, 외부와의 협력을 통해 자원 제약의 어려움을 극복하고, 운영의 효율을 향상시키며, 조직의 친사회적 동기를 구체화하는 사회적기업의 주요한 행동경향인 '협력지향성'을 식별하였다. 협력지향성은 사회적 가치지향 활동과 영리를 추구하는 기업가적 활동에서 동시에 발현되는 사회적기업의 차별적 행동경향으로, 친사회적 동기를 구체화하며 동시에 기업가적 영리활동을 수행하는 사회적기업의 이중정체성(Dual identity) 갈등 사이에서 기업 활동의 합법성을 강화하고 사회적 가치창출 활동의 성과를 향상시키며 기업 활동의 경제적 기반을 강화한다. 본 연구에서 새롭게 식별된 협력지향성은 선행연구를 보완하여 사회적기업가정신 이론의 설명력을 높이고 후속 연구자들에게 이론적 확장의 근거와 토대를 제공한다.