• Journal of the Korean Society of Food Science and Nutrition
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• v.41 no.3
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• pp.295-301
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• 2012

This study was carried out to determine the biological activities of Wa-song (Orostachys japonicus) hot water extracts. Four types of extract samples were prepared, including Wa-song, traditional plants mixture [PM; mixture of Baekbokryung (Poria cocos), Changchul (Atractylodis rhizoma), and Sa-in (Amomum xanthoides)], and two different ratio composites of these (mixture of PM and Wa-song extract, 1:1 (v/v); PMO-1 and 1:3 (v/v); PMO-3). Their biological activities were measured using various in vitro assays. Total phenolic and flavonoid contents of PM were higher compared to those of Wa-song, and those of PMO-1 were higher than those of PMO-3. Further, PMO-1 contained higher ABTS and DPPH radical scavenging, reducing power, and nitrite scavenging activities than PMO-3. On the contrary, PMO-3 contained higher tyrosinase and inhibitory activities of MCF-7 and HT-29 cancer cells than PMO-1. According to the results, biological activities of PMOs were significantly higher than those of Wa-song extract and PM in in vitro assays. Therefore, we expect that PMOs could show higher biological activities than Wa-song extract alone in vivo.

• Journal of the Korea Society for Simulation
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• v.24 no.4
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• pp.127-136
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• 2015

The e-government project management consignment system to allow the public PMO has been introduced to resolve the quality management issue and the business risk, pointed out by the reorganized Software Industry Promotion Act. The additional regulation improvements are demanded because the public PMO system cannot settle down due to the different opinions among related parties: owner, operator and PMO. Therefore, to make balanced regulation improvements, the in-depth studies are necessary to analyze the fundamental causes of the disagreement between the related parties. This study analyses the each related party's cognitive structure to perform public PMO successfully and the fundamental reasons that cause the different opinions by applying the cognitive psychological Means-end chain theory, the laddering technique and the HVM, Hierarchical Value Map. In addition, this study analyses the regulations required for the related parties to obtain the expected benefits.

• Journal of Information Technology Services
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• v.14 no.2
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• pp.87-109
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• 2015

The IT outsourcing industry has been widespread for decades since the growth of the system integration industry stagnates and companies need to curtail expenses and improve the quality of IT services. According to previous studies on the success factors of the IT outsourcing, its transition phase is significant because of continuity of business and the handover of knowledge. Since a transition phase consists of several projects, but its goal is different from general projects, it needs special and professional management. Therefore, recent IT outsourcing business starts to introduce PMO (project management offices), of which success strongly depends on the competencies of the PMO. However, there are only few studies on which competencies of the PMO are important. In this paper, we suggest an evaluation model of transition PMO competencies derived using the repertory grid technique and the analytic hierarchy process. Additionally, we compare the differences between the views of several stakeholders on the importance of the competencies.

• Polymer(Korea)
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• v.34 no.4
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• pp.289-293
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• 2010

Periodic mesoporous organosilicas (PMO) were synthesized using bis(triethoxy silyl) ethane (BTEE) as the precursor and dodecyl trimethyl ammonium bromide(DTMA), cetyl trimethyl ammonium bromide(CTMA), and octadecyl trimethyl ammonium bromide(ODTMA) as the templating agents. The surface area and pore volume of PMO decrease with the increasing of chain length of templating agents. However, the chain length of templating agents almost has no effect on the pore diameter of PMO. From the XRD and the DSC experiments, we found that the chain length of surfactants using as the templating agents has an effect on the melting transition of polyethylene. But it has no effect on the melting transition of poly(ethylene oxide). The results of TGA prove that the thermal decomposition temperature of polymer which was penetrated into PMO was increased.

• Journal of the Korea Institute of Military Science and Technology
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• v.25 no.6
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• pp.628-636
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• 2022

This paper describes the design of the avionics architecture for military unmanned aerial vehicles considering the airworthiness requirements for the first time. This design considers the redundancy in the system data bus and the power system and the data link system to meet the system safety requirements of the airworthiness requirements of military UAVs. This avionics architecture design has been verified through the system integration test and the flight test after manufacturing the UAV.

• The Journal of Information Systems
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• v.32 no.2
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• pp.109-135
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• 2023

Purpose This study is based on previous studies related to the function and operating system of the project management system for efficient project management. The purpose of the study is, first, to find out how the project performance is affected by the utilization of the project management system and the involvement of the PMO. Second, the mediating effect of implementing integrated management between the project management system and project performance is to be demonstrated. Design/methodology/approach Based on previous studies related to project management, this study designed a research model by integrating functional factors derived from project management system design studies, integrated management factors, and factors derived from PMO function studies. Findings As a result of the empirical analysis, this study first confirmed that high utilization of the project management system and high involvement of the PMO are factors that affect project performance. In addition, it was confirmed that the establishment of the system and the introduction of PMO do not guarantee project performance. Second, it was confirmed that the execution of integrated management has a mediating effect between the system and the project performance, and that the high utilization of the system has a positive effect on the mediating effect.

• Proceedings of the Korea Information Processing Society Conference
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• 2017.04a
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• pp.704-707
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• 2017

오늘날 기업에서 프로젝트의 성공은 기업 전략 달성에 필수 요소이다. 프로젝트가 많아지고 프로젝트의 중요성이 커지면서 프로젝트의 성과 향상의 방안으로 PMO(Project Management Office)를 운영하는 사례가 늘고 있다. 전사 PMO는 기업의 전략과 프로젝트 간에 연결고리 역할을 하며 기업 내 다수의 프로젝트를 관리함으로써 기업 전략 달성을 도모하지만 대부분 부족한 인력과 자원으로 운영되고 있다. 리스크가 높은 프로젝트에 한정된 인력과 자원을 집중할 수 있다면 프로젝트 성공 가능성을 높이고 기업 전략 달성에 보다 이바지 할 수 있을 것이다. 본 논문에서는 프로젝트 리스크를 기반으로 PMO를 운영하는 방법에 대하여 다루고자 한다.

• Journal of the Korean Chemical Society
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• v.56 no.5
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• pp.591-596
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• 2012

Preparation of $AlPMo_{12}O_{40}$ (AlPMo) salts, supported on mesostructured SBA-15 silica, by the reaction deposition strategy causes the formation of isolated AlPMo nanocrystals inside the nanotubular channels. The remarkable characteristic of the SBA-15 structure is that all the cylindrical pores are connected by some small channels. This makes the whole pore system in SBA-15 three-dimensional. We have used 2D hexagonal SBA-15 silicas as hard templates for the nanofabrication of AlPMo salt nanocrystal. The oxidation of alcohols occurs effectively and selectively with $H_2O_2$ as the oxidant. AlPMo salt nanocrystal was used as the catalyst.

• Proceedings of the Korea Information Processing Society Conference
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• 2017.11a
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• pp.466-469
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• 2017

SI 프로젝트가 대형화되고 장기화 되면서 투입 인력과 구축 비용의 단위가 점점 커짐에 따라서 프로젝트의 복잡성과 위험요소가 증가하고 있다. 이에 따라 프로젝트 수행에 대한 종합적인 점검과 평가로 프로젝트에 대한 신뢰성과 안전성을 증진시키고, 각종 위험 및 역기능을 최소화 할 수 있는 프로젝트 관리에 대한 전문성이 요구되고 있다. PMO(Project Management Office)는 프로젝트의 수행을 일관성 있게 관리하고, 성공적인 완료를 위하여 지원, 감독, 통제 등의 제반 활동을 수행하는 조직이다. PMO의 도입은 사업관리 효율을 향상시키는 방법 중 하나로 인식되고 있는데, 특히 과거 프로젝트의 성공이나 실패에 대한 지식을 효과적으로 전달한다거나, 프로젝트 팀에게 프로젝트 수행과 관련된 지원 서비스를 제공한다는 점에서 효율적인 방법으로 인식 되고 있다. 본 연구에서는 성공적인 SI 프로젝트가 되기 위해서 프로젝트 내에서 PMO의 역할에 대해서 분석 및 연구하였다.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.41 no.4
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• pp.314-318
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• 2013

Tests and evaluations following the U.S. MIL-HDBK/STANDARD were successfully conducted to assure the performance of the air-to-surface guidance kit which was developed first in Korea. Various ground tests confirmed the operation capability and reliability of the guidance kit, and flight tests proved very good mid-range gliding performance and accuracy of the gliding bomb which was a general purpose bomb with the guidance kit.