기술집약적 분야 산업은 영토 내 가용할 수 있는 자원이 극빈한 국가의 주요 성장 동력으로 활용되어질 수 있다. 예로, 한국의 경우 원자력 및 방사선 기술 산업을 고도로 육성시켜 자국 내 에너지 문제의 해결과 원자력발전소 수출 등 국익을 얻을 수 있었다. 반면 기술집약적 분야 산업에 대한 잘못된 정부정책결정에 의하여 국가적 손해가 발생한 경우도 존재한다. 본 연구에서는 기술집약적 산업에 대한 잘못된 정부정책사례를 분석하여 3가지 요인을 도출하였다. 그리고 3가지 모형의 앨리슨모델을 복합적으로 이용하여, 사례분석에서 도출된 3가지 요인의 문제점을 해결할 수 있는 합리적 정책결정 모형을 개발하고자 하였다. 궁극적으로, 본 연구의 결과는 기술집약적 산업에 대한 합리적인 정부정책결정 과정을 위해 향후 활용될 수 있을 것으로 기대한다.

아메리슘(Am)은 사용후핵연료의 장기 방사성 독성에 크게 영향을 주기 때문에 고준위 방사성 폐기물 처분의 장기 안전성 평가에 필수적으로 고려되어야 할 원소이다. 분광학적 방법을 이용한 일부 악티나이드 원소의 화학반응 연구가 활발히 진행되고 있는 반면, 아메리슘에 대한 연구는 아직까지 미비한 상황이다. 이 연구에서는 고순도의 시료를 필요로 하는 화학반응 연구를 위하여 241Am 시료를 정제한 후, 액체섬광계수기와 감마선 및 알파선 스펙트럼을 이용하여 정량과 정성분석을 하였다. 액체 광도파 모세관 셀을 이용한 고감도의 UV-Vis 흡수 분광학과 시간분해 레이저 형광 분광학을 이용하여 Am(Ⅲ) 가수분해물과 옥살레이트(oxalate, Ox) 착물반응을 조사하였다. 산성조건에서 Am3+은 503 nm에서 최대 흡수봉우리를 보이며, 몰흡광계수는 424 ± 8 cm-1·M-1임을 확인하였다. 중성 이상의 pH 조건에서 형성되는 Am(OH)3(s) 콜로이드 입자에서는 506-507 nm 파장에서 최대 흡수봉우리가 관측되었다. Am(Ox)3 3- 착물은 Am3+에 비교하여 흡수 및 발광스펙트럼이 각 각 4와 5 nm정도 장파장으로 이동하였고 몰흡광계수와 발광세기도 크게 증가하였다. Am(Ox)3 3-의 발광수명은 23에서 56 ns으로 증가하였고 이는 Am(Ⅲ)의 내부권에 결합하고 있던 약 여섯 개의 물분자가 옥살레이트의 카르복실기로 치환되었음을 의미한다. 이 결과로부터 Am(Ox)3 3-은 각 옥살레이트 리간드가 두 자리 결합(bidentate)을 하고 있다는 것을 제안하였다.

There have been more than 40,000 cases of fires in Korea in the last three years. However, as ‘Accidental Fire Liability Act’ was judged to be non-conform to the Constitution in 2007, the damages by light mistakes should be compensated. Accordingly, disputes such as compensation claims, litigations and indemnification cases of the victims of fire increased. However, it is so difficult for victims of fire cases to take proper action. So, this study is to help victims of fire cases in the disputes and compensation claims of the victims, and to find actual and practical support system based on the analysis of compensation status. To help victims of fire cases, we need to survey about victims of fire cases with multiple victims. That survey is analyzed to find support plan for victims. Furthermore, to find support plan the current law is needed to be analyzed and reviewed to revision. It is also tried to identify problems in the operation of the Center for victims of Fire currently operated by fire stations and to find countermeasures. In addition, the status of subscription and problem of fire insurance for the compensation for the victims and the method to increase fire insurance subscription rate will be studied.

This study deals with the case study on the pallet quantity determination problem for the flexible manufacturing system producing 32 different types of aircraft wing ribs which are major structures of an aircraft wings. A Korean company has constructed the WFMS (wing rib flexible manufacturing system) that is composed of several automated equipments such as the 5-axis machining centers, the RGV (rail guided vehicles)s, the AS/RS (automated storage and retrieval system), the loading/unloading stations, and so on. Pallets play a critical role in the WFMS to maintain high system utilization and continuous work flow between 5-axis machining machines and automated material handling devices. The discrete event simulation method is used to evaluate the performance of the WFMS under various pallet mix alternatives for wing rib manufacturing processes. Four performance measures including system utilization, throughput, lead-time and work in process inventory level are investigated to determine the best pallet mix alternative. The best pallet mix identified by the simulation study is adopted in setting up and operating a real Korean aircraft parts manufacturing shop. By comparing the real WFMS’s performances with those of the simulation study, we discussed the cause of performance difference observed and the necessity of developing the CPS (cyber physical system).

In this study, we used the 3D simulation program to create bodice patterns for adolescents boy students and analyze the fitting and air gap through 3D simulation. The purpose of this study was to select the bodice pattern method that best suited the body shapes of the adolescents male students. The subjects of this study were the French E pattern, Japanese N pattern, and Korean industrial L and J patterns. The applied size was the sixth Korean human body size survey data of 2010 Korea. The age range of the subjects was 13-18 years. DC Suite Program Ver. 5.1 was used, and SPSS 23.0 program was used for data analysis. As a result of comparing the shapes of the bodice patterns in the 3D simulation program, the E pattern had two waist darts on the front and one shoulder dart and one waist dart on the back, and the J and L patterns only had one dart on the back. The N pattern had no darts on either the front or back. As a result of examining the appearance evaluation of the pattern, air gap, color distribution, and clothing cross-section, the E pattern was evaluated as the closest to the body, and the N pattern was evaluated as the pattern with the largest allowance. The J pattern was evaluated as the best fit for body shape of the male adolescents. However, it is necessary to develop a pattern system by adding extra ease in setting the center front length.

Genus Nemapogon Schrank, 1802, of Nemapogoninae is reviewed in Korea, with four species. The genus comprises approximately 70 named speices. Some species of the genus Nemapogon Schrank, 1802 (N. granella, N. cloacella, and N. variatella) are well known as storage pests and distributed worldwide (Gaedike, 2000). The larvae of these moths feed on stored food such as cereals, flour, and dried mushrooms (Robinson and Nielsen, 1993). In Korea, the genus Nemapogon have been reported only one species up to date (Byun et al., 2009), with Nemapogon granella (Linnaeus, 1758). In this study, three additional species of the genus Nemapogon Schrank is reported for the first time in Korea. The adults are briefly described and illustrated, including adults genitalia.

Effective phytosanitary fumigation can prevent the introduction of exotic insects into new areas where they become pests. Traditionally Probit 9 level control (99.9968%) was considered as a stand-alone quarantine treatment. However, unacceptable phytotoxic damage often associated with high-dose treatment to realize Probit 9 level control of a large number of pests has often restricted its practical application. Therefore, quarantine security is being achieved for some commodities using a “systems approach”, where quarantine pests are cumulatively reduced to acceptable levels using independent, pre- and postharvest measures that comprise a systems that effectively mitigate the pest. Preharvest reductions in population through the study and application of chemical ecology involving insect behavior modifying chemicals can be an integral part of systems approach. This results in low pest prevalence prior to end point treatment, where pests may be effectively controlled using a less-than-Probit 9 level, low-dose treatment. In this talk, I discuss the chemical ecology of invasive quarantine pests including Drosophila suzukii and its perspective in the effective end point fumigation treatment using ethyl formate.

미임계 시설은 정상 또는 사고상태에서 핵임계안전성이 확보되어야 한다. 이를 위해선 계산된 임계도가 바이어스와 불확실도로 결정된 미임계상한치(USL)를 초과하지 않는다는 것을 검증하는 절차가 반드시 필요하다. 하지만 핵임계안전성 검증 방법론은 여러 가지가 존재하며, 방법론이 달라지면 USL도 달라지므로 가장 적절한 한가지의 방법론으로 평가하는 것이 중요하다. 본 연구에서는 핵임계안전성 검증 방법론이 기술된 두 개의 문서를 비교 분석하여 한 가지 방법론으로 정립하였고, SCALE6.1 코드를 이용한 용기 설계에서의 미임계상한치 결정에 적용하였다.

Using social network analysis, the current study examines the image of a unique festival in a well-established tourist destination on the East coast of the United State of America, the Myrtle Beach area of South Carolina. Social Network Analysis (SNA) emphasizes the importance of constructing interconnectedness among concepts and knowledge networks in respondents’ minds (Hanneman & Riddle, 2011; Scott & Carrington, 2011). The technique visualizes complicated perception of tourists in a most simple but scientific way. Using concept maps and degree centralities derived from social network analysis as well as dendrograms, this study provides insights on wine and food festival in Myrtle Beach Area. Together with cluster analysis, the SNA suggests unique contributions to the understanding of tourist behaviour in tourism destination research.

The purpose of this study was to make a pants pattern suitable for women 70 to 85 years of age, then analyze that- pattern’s shape, size, appearance, fit, allowance and air gap. Participants made the pattern using 3D simulation program DC Suite version 5.1. The results suggest a design method suitable for the lower-body shapes of elderly women. In external appearance, the A-type earned the highest evaluation in all items except the allowance of the back waist and back hip. The L type earned the highest evaluation in the allowance of back waist and hips. The A-type’s, back waist appeared set at an angle that did not match the body shape of an old-old aged woman in the center-back-line setting. Therefore, the pattern method of A-type combined with L-type’s method of center back, produces an excellent pants pattern. Evaluation of the air gaps among patterns revealed that; the A-type showed the largest air gap in waist and hip circumference and the smallest air gap in thigh circumference. The waists, abdomen, and hip circumferences of older women often become larger while their legs become slimmer. This study accounted for those factors in determining a pattern suitable for the lower-body shape of old-old aged women. However, participants only analyzed four patterns and compared them with women 70 to 85, years of age. Therefore, it is necessary to develop industrial patterns applicable to a wide age group.

Musculoskeletal disorders including fracture, tendonitis, osteoarthritis, and laminitis are common diseases in racehorses that can cause large economic losses in the racehorse industry. Mesenchymal stem cells (MSCs) are being applied as new clinical tools for treatment of musculoskeletal disorders of racehorses. To investigate the immunomodulatory effects of stem cell therapy, we analyzed the anti- and pro-inflammatory factors in peripheral blood mononuclear cells of racehorses before and after stem cell application using quantitative real-time RT-PCR. The expression levels of pro-inflammatory factors (CCL5, IFN-γ, IL-2, and IL-18) were decreased while those of anti-inflammatory factors (TIMP-1, IL-10, TGF-β1, and VEGF) were increased significantly after application of equine adipose tissue-derived MSCs (eAD-MSCs) to racehorses with fracture. Moreover, the expression levels of pro-inflammatory factors (IL-2, IL-18, and TNF-α) were decreased while those of anti-inflammatory factors (TIMP-1, TIMP-2, IL-10, TGF-β1, and VEGF) increased significantly after stem cell application of eAD-MSCs in racehorses with tendonitis. After evaluating immunomodulatory effects of stem cell therapy on equine musculoskeletal disorders such as fracture and tendonitis, our results showed that expression levels of pro-inflammatory factors were decreased, while those of anti-inflammatory factors increased significantly after stem cell application of eAD-MSCs. These findings suggest that the healing effects of the stem cell therapy might be due to its modulation of inflammatory factors.

Mesenchymal stem cells (MSCs), which are present in all tissues, can differentiate into cells with various specific functions. Recently, cell-based therapies using MSCs have been increasing in the veterinary research and related fields. In this study, we investigated the cellular morphology, proliferating capacities, expression of cell surface markers such as CD13, CD34, CD44, CD45, CD90, and CD105, mesodermal differentiation potentials, and expression of senescence-related markers of p53, p21, and telomerase reverse transcriptase in equine adipose tissue-derived MSCs (eAD-MSCs) after cryopreservation. The eAD-MSCs were analyzed immediately and after being frozen in liquid nitrogen for 1 year (< 1 year, G1) and more than 3 years (> 3 years, G2), respectively. After cryopreservation for 1 - 3 years, G2 eAD-MSCs showed similar cellular morphology, proliferating capacities, and expression of cell surface markers when compared with G1 eAD-MSCs. Moreover, cryopreservation did not affect the adipogenic, chondrogenic, or osteogenic differentiation potentials of G1 and G2 eAD-MSCs. Collectively, cryopreservation for (or over) 3 years maintained the stem cell phenotype and differentiation potentials of eAD-MSCs. These results will be an advantage that can be effectively used for future development of cell-based therapies.