• 인터넷정보학회논문지
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• 제9권1호
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• pp.137-143
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• 2008

유비쿼터스 환경에서 멀티 에이전트 시스템은 지능화 서비스를 제공하는데 유용하다. 본 논문에서는 멀티 에이전트 시스템에서의 통신 성능을 향상시키기 위한 새로운 스케줄링 서비스 모델을 제안한다. 이 모델은 에이전트 간에 교환되는 메시지의 수와 형식화된 ACL 메시지를 기반으로 가중치를 적용하여 우선순위를 할당한다. 제안된 방식은 JADE 플랫폼과 비교하여 메시지 당 처리시간과 총 소요시간을 적게 하는 것을 실험을 통해 보여준다. 더욱이 제안된 방식은 확장성 있는 메시지 처리 시스템을 만들 수 있게 한다.

• Advances in materials Research
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• 제4권4호
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• pp.207-214
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• 2015

It has been reported in the technical literature that orotic acid can be used in order to induce improved crystallization of biodegradable and biocompatible polymers like poly(L-lactic acid), polyhydroxybutyrate and poly(hydroxybutyrate-co-hydroxyhexaonat). The expected advantage of the changed crystalline structure is a reinforcing effect of the polymers. A lot of papers reported about the application of inorganic and organic agents for acceleration of heterogeneous nucleation. This study reports on an attempt to use orotic acid as appropriate non-toxic nucleating agent for improving mechanical properties of isotactic polypropylene. Special attention is given to demonstrate the effect of nucleation in a typical melt spinning process in order to improve the mechanical properties. The effects were demonstrated using rheology, thermal analysis and tensile testing.

• 펄프종이기술
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• 제40권1호
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• pp.9-14
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• 2008

Beating and using chemical agents are common methods to improve physical properties. But the beating is high energy consumption process and chemical agent addition may cause deteriorate waste water quality. Therefore, it is necessary to use more environment-friendly methods. In this study, micro pulp was used in the handsheet making to get improving effects of physical properties without beating treatment and chemicals. Stiffness, thickness and air permeability were increased and strength properties of paper were also improved to some extents by only the micro pulp addition.

• 한국시뮬레이션학회논문지
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• 제11권4호
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• pp.91-105
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• 2002

The attackers on Internet-connected systems we are seeing today are more serious and technically complex than those in the past. So it is beyond the scope of amy one system to deal with the intrusions. That the multiple IDSes (Intrusion Detection System) coordinate by sharing attacker's information for the effective detection of the intrusion is the effective method for improving the intrusion detection performance. The system which uses BBA (BlackBoard Architecture) for the information sharing can be easily expanded by adding new agents and increasing the number of BB (BlackBoard) levels. Moreover the subdivided levels of blackboard enhance the sensitivity of the intrusion detection. For the simulation, security models are constructed based on the DEVS (Discrete EVent system Specification) formalism. The intrusion detection agent uses the ES (Expert System). The intrusion detection system detects the intrusions using the blackboard and the firewall responses these detection information.

• 대한안전경영과학회지
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• 제19권4호
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• pp.77-85
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• 2017

As industrialization progresses, mass production becomes a smart production system. However, industrial accidents do not decline, and during the course of industrialization, due to the logic of economic agents that have an economical and effective employment environment, they are changed to non-regular workers. The Occupational Safety and Health Act stipulates that the safety managers must be distinguished and the safety managers perform the task of conducting industrial accidents by balancing the duties and regulations specified in the Act on Special Measures for Deregulation. Safety administrators providing advice on issues needed to prevent industrial accidents and preventive measures We would like to present the problems and improvements that may arise due to safety managers' replacement due to accidents caused by industrial accidents or accidents.

• Elastomers and Composites
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• 제56권4호
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• pp.217-222
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• 2021

In this study, random polypropylene (rPP) was compounded with two of monoglycerides, namely, glyceryl monolaurate (GML) and glyceryl monostearate (GMS), as antifogging agents to improve its antifogging performance. rPP film samples were prepared by a film-casting method using a three-roll casting machine after melt blending through a twin screw extruder. With an increase in the monoglyceride content, the melt flow index for rPP films with GML and GMS increased, and their yield strength decreased. The incorporation of GMS in rPP was proven to be more effective in improving its physical properties than was rPP with GML. When GML and GMS were separately added to the rPP film at contents of more than 1 phr and more than 5 phr, respectively, the film exhibited antifogging performance.

• 한국분말재료학회지
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• 제28권6호
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• pp.518-526
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• 2021

This review summarizes the recent progress in iron-oxide-based heat generators. Cancer treatment using magnetic nanoparticles as a heat generator, termed magnetic fluid hyperthermia, is a promising noninvasive approach that has gained significant interest. Most previous studies on improving the hyperthermia effect have focused on the construction of dopant-containing iron oxides. However, their applications in a clinical application can be limited due to extra dopants, and pure iron oxide is the only inorganic material approved by the Food and Drug Administration (FDA). Several factors that influence the heat generation capability of iron-oxide-based nanoparticles are summarized by reviewing recent studies on hyperthermia agents. Thus, our paper will provide the guideline for developing pure iron oxide-based heat generators with high heat dissipation capabilities.

• KDI Journal of Economic Policy
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• 제43권2호
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• pp.81-101
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• 2021

This paper estimates the expectation-augmented Phillips curve, which explains inflation dynamics, in Korea. The phenomenon of low inflation in Korea has been going on for quite some time, in particular since 2012. During the Covid-19 crisis, due to low inflation expectations the operation of monetary policy was limited as the base rate approached the zero lower bound. The main objective of this paper is to estimate where and how tightly inflation expectations are anchored. It was found that long-term inflation expectations fell to around 1%, falling short of the inflation target, and that inflation expectations are strongly anchored to long-term expectations, which implies that the low inflation phenomenon is likely to extend into the future. The results also imply that even if inflation fluctuates due to temporary disturbances, it may converge to a level below the inflation target. The slight rebound of long-term expectations during the Covid-19 crisis suggests that the aggressive monetary policy may have contributed to improving economic agents' beliefs about the commitment of monetary authorities to inflation stability. This may also help long-term expectations gradually to approach the inflation target.

• 한국산학기술학회논문지
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• 제12권9호
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• pp.3856-3868
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• 2011

최근까지 부동산 부분에 대한 전반적인 연구경향은 부동산시장 및 시장분석에 관한 논문이 중심을 이루었고, 부동산중개인의 직무능력 향상을 위한 교육프로그램개발에 대한 연구는 상대적으로 부족한 실정이었다. 따라서 본 연구는 충남지역(천안)을 중심으로 부동산 비즈니스 현장에서 경영활동 중인 부동산중개인을 대상으로 직무능력 향상을 위한 교육프로그램에 대한 니즈를 파악하기 위하여 실증분석을 하였다. 분석결과는 다음과 같다. 첫째, 부동산중개인의 직무능력 향상을 위한 교육내용에 대한 설문에서는 응답자의 대다수가 부동산 권리관계분석 및 법적지식, 부동산경영 회계, 부동산마케팅, 부동산 정책의 이해 등이 절실하게 필요한 것으로 나타났다. 이와 같은 변화의 움직임은 진화하는 고객들의 욕구를 충족시켜 줄 수 있는 최적의 대안이 교육훈련과정으로부터 발생됨을 인식하기 때문이라 하겠다. 둘째, 부동산마케팅 전략에 대하여 조사한 결과, 응답자의 대부분이 고객 욕구를 충족시키기 위해 새로운 형태의 마케팅전략이 필요함을 인식하고 있는 것으로 나타났다. 이와 같은 현상은 정보기술(Information Technology)등 패러다임 변화에 따라 인터넷 광고 등과 같은 새로운 형태의 마케팅 전략이 경영현장에서 요구되기 때문인 것으로 판단된다. 셋째, 산학연계를 통한 부동산관련 교육프로그램 필요성에 대하여 조사한 결과, 응답자 가운데 92%가 대학의 평생교육원에서 진행하고 있는 부동산 교육프로그램의 운영이 필요하다고 응답하였다. 또한 지역에 소재한 대학의 자원(resources)을 이용한 부동산중개인의 재학습 과정이 필요한 것으로 나타났다. 이외에도 효과적이고 효율적인 교육프로그램을 위해서는 대학 평생교육원의 인적 자원(human resources)을 활용한 부동산중개인의 직무능력 향상을 위한 '부동산 계약학과' 형태의 교육훈련시스템 운영을 요구하고 있는 것으로 나타났다. 넷째, 부동산중개인의 직무능력 향상을 위해 정규과정에서 수강하고 싶은 교육내용의 순위를 조사한 결과, 부동산경영(44.2%)과 부동산마케팅(42.3%)부분이 빈도가 높게 나타났다. 이와 같은 응답결과는 부동산경영과 부동산마케팅 마인드를 통해 고객들의 니즈를 파악하려는 의지를 보여주는 것이라 하겠다. 경영지식의 습득을 위해서는 정규과정 형태의 교육프로그램 운영보다는 비정규과정 형태의 교육훈련 프로그램을 더욱 더 선호하는 것으로 나타났다. 그러나 본 연구는 부동산중개인의 특성을 고려, 천안지역에서 부동산중개업을 운영하고 있는 대상만을 중심으로 표본을 추출하였다. 따라서 모집단을 보다 광범위하여 다양한 지역을 중심으로 조사할 필요가 있다. 천안지역 이외에도 부동산 비즈니스 활동이 활발하게 진행되고 있는 지역(평촌, 일산, 분당)과 부동산학을 전공하는 학부생과 대학원생들을 대상으로 부동산중개인의 직무능력 향상을 위한 니즈를 실증적으로 분석할 필요가 있다. 이를 통하여 부동산중개인들이 고객만족과 직무능력 향상을 위하여 필요로 하는 요인들을 측정함으로서 맞춤형 교육프로그램개발을 위한 정보를 얻을 수 있을 것이다. 이와 같은 연구결과를 통하여 측정된 직무능력 향상을 위한 교육프로그램개발 변수들은 대학의 부동산학 커리큘럼에 접목됨과 동시에 부동산학의 발전을 위한 실사구시적 정보(information)로 유용하게 사용될 수 있을 것이다.

• 한국간호교육학회지
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• 제19권2호
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• pp.127-136
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• 2013

Purpose: The aim of the study was to evaluate the effect of self-monitoring of blood glucose (SMBG)-based Diabetes Self-Management Education (DSME) on glycemic control in type 2 diabetes. Methods: This study was designed to compare changes in glycemic control over 12months in SMBG-based DSME group (n=65) versus control group (n=65). Data were obtained from medical records type 2 diabetic patients treated with oral antidiabetic agents and above HbA1c 7.0% from June 2006 to August 2008. All participants completed DSME defined as informational intervention of lifestyle habits and reinforcement of educational Monthly News letter delivered by the diabetes nurse educator. SMBG-based DSME group requested to measure blood glucose 7 times a day for a week and to record their diary and received counseling with a focus on diet and lifestyle during the education. Assessments were conducted baseline, 3, 6 and 12 months. HbA1c was used as an index of glycemic control. Results: 12 months later, the level of HbA1c was reduced by $1.28{\pm}1.68%$ in experimental group and $0.49{\pm}1.05%$ in the control group. We found a significant effect of $Time^*$ Group interaction (p=.013). Conclusion: SMBG-based DSME for patients with type 2 diabetes with oral antidiabetic agents was effective in improving glycemic control and maintaining long-term glycemic control.