• 한국측량학회지
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• 제11권2호
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• pp.7-15
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• 1993

대상 지역의 자료기반을 구축하기 위해서는 필요한 목적에 따라 신속하고 정확한 지형정보를 얻어야 한다. 일반적으로 지형정보의 취득에 이용되는 방법에는 지도, 위성영상 및 항공사진의 입체모형을 이용하는 방법이 있으나 대상지역의 크기, 영상의 공간해상력, 소요정확도 및 경제성 등을 고려하여 최적방법을 선택하여야 한다. 따라서, 본 연구에서는 소규모 대상지역인 농촌 정주권사업 계획 지구를 선정하여 Photoballoon 시스템을 활용한 지형정보의 취득 및 기본도제작 방법과 지형공간정보체계의 공간 중첩기법을 활용함으로써 소규모 대상지역의 효율적인 지형자료기반 구축방법을 제시하는데 목적이 있다. 본 연구의 수행결과, 대상지역의 정밀한 입체사진을 얻기 위한 Photoballoon 시스템의 최적 촬영조건을 결정하고 이에 따른 정확도 분석을 통해 소규모지역에 대한 입체사진 및 지형도를 신속하고 경제적으로 얻을 수 있었으며, 이를 이용하여 대상지역에 필요한 각종 계획을 수행함으로써 소규모지역의 효율적인 계획 및 설계에 활용가능한 자료기반을 구축할 수 있었다.

• Journal of Microbiology and Biotechnology
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• 제9권1호
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• pp.113-118
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• 1999

The insulin-like growth factor (IGF) is found in all vertebrates and its type-II molecule is regarded as a fundamental embryonic growth factor during development. We have firstly identified, in this study, a cDNA clone corresponding to IGF-II (flIGF-II) from the adult brain of the teleost, Paralichthys olivaceus. We also examined the tissue expression of flIGF-II in several adult tissues by RT-PCR. The flIGF-II cDNA contained a complete ORF consisting of 215 amino acids and one stop codon. Its molecular characteristics appear to be similar to the previously identified IGF-II molecules, in which a common primary structure exhibiting B, C, A, D, and E domains is evidently observed. This cDNA clone seems to be cleaved at $Ala_{52}$ for the $NH_2$-end signal peptide and appears to produce a 98 amino acid-long E-peptide from the $Arg^{118}$. The functional B-D domain regions, therefore, include 65 amino acids and is able to encode a 7.4-kDa protein. The most prominent structural difference between IGF-I and IGF-II was that the D domain of IGF-II exhibits a two-codon-deleted pattern compared to the 8 amino acid-containing IGF-I. The insulin family signature in the A domain and six cysteins forming three disulfide bridges between the B and A domains were evolutionary-conserved from teleosts to mammalian IGF-II. Interestingly, the E-peptide region appears to provide a distinct hallmark between teleosts in amino acid composition. The flIGF-II shows 85.1% of sequence identity to salmon and trout, 90.6% to tilapia, and 98.4% to perch in amino acid level. In tissue expressions of IGF-II, it is very likely that flIGF-II has a significant expression in the adult brain. However, liver seems to be the main source for IGF-II production, and relatively low signals were observed in the adult muscle and kidney. Taken together, it would be concluded that the functional region for IGF-II mRNA is highly similar in phylogeny and is evolutionary, conserved as a mediator for the growth of vertebrates.

• 설비공학논문집
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• 제6권4호
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• pp.439-452
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• 1994

One of the chlorofluorocarbon compounds. R-12 deplete atmospheric ozone. It leads to international agreement to reduce CFC production. R-134a has similar thermodynamic properties to CFC-12. It has zero ODP(Ozone Depletion Potential). This Paper focuses on the lubricating oils for using with R-134a PAGs(Polyalkylene Glycol's) and esters are primary lubricants that are now being tested for use with R-134a Because of extreme polarity of R-134a. there are many problems in the selection of lubricating oil. This investigation analyzes compressor working conditions and calculates wear parts friction for simulation testing. Miscibility and material compatibility is proved by sealed glass tests. Friction was tested on the closed type pin on disk wear tester. This equipment simulates actual refrigerating compressor. Environment controlled test made more reliable result than field test Conventional oils(mineral oils, Alkylbenzene, PAO(Polyalpha Olefin) are immiscible with R-134a. PAGs and ester oils are miscible with R-134a. Friction coefficient is similar to conventional system(mineral oil/R-12 systems) at operating condition. At start & stop condition, PAGs/R-134a system has high friction coefficient. It provide reliable result on the lubricity, miscibility, material compatibility of R-134a with these new lubricants. It suggests proper selection of refrigeration oil that may improve compressor durability of performance.

• 동의생리병리학회지
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• 제26권5호
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• pp.577-587
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• 2012

Warm disease: Any of various heat disease characterizer by rapid onset and shifts, pronounced heat signs, and a tendency to form dryness and damage yin. Exterior heat sign: exterior heat patterns are characterizer by pronounced heat signs, such as a red sore pharynx and a relatively red tongue with dry fur, the pulse is floating and rapid, cough and the production of thick white or yellow phlegm. If wind-heat evil exist in weifen, it becomes exterior syndrome, and a remedy about that is dispelling wind-heat but when wind-heat evil invades in nasal and throat part so the disease occurs, you need to add relieving sore throat worsens invades in lung it makes disharmony of diffuse in lungs. So a remedy about it is diffuse the lung. disharmony of diffuse in lungs makes metabolic disorder of qi and liquid and humor malfunction therefore it occurs cough and heat-phlegm syndrome. heat from weifen invades the whole of lungs and form lung heat. So a remedy about lung heat is clearing away lung heat, this lung heat makes inevitably bleed in lungs, therefore a remedy in this case is clearing the lung to stop bleeding, or moistening the lung. Exterior heat sign means that exterior syndrome coexists with heat syndrome and it means that a remedy of this syndrome need to mix prescriptions for relieving exterior syndrome and heat-clearing prescriptions to treat this syndrome.

• 한국측량학회지
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• 제9권2호
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• pp.49-56
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• 1991

본 연구에서는 SPOT 위성자료를 이용함에 있어 경제적 시간적 효용성을 증대시키기 위해, CCT 형태의 수치영상자료를 일반 PC 영상처리체계로 처리하여 3차원 위치를 결정하고자 하였으며, 위성영상의 상좌표취득에는 통계적 이론에 근거한 영상정합기법을 도입, 좌표취득의 신뢰도를 분석하여 수치표고모형생성, 정사사진의 작성 등에 요구되는 3차원 위치결정에 관한 새로운 알고리즘을 제시하였다. CCT 형태의 수치위성영상을 이용한 상좌표취득에 있어서 영상정합기법을 적용한 결과, 육안관측에 의하여 상좌표를 취득하는 방법에 비하여 수평위치 및 높이결정의 정확도를 향상시킬 수 있었다. 상좌표취득을 위해 영상상관기법을 적용할 경우, 기준영역의 크기를 변화시켜 상관계수를 구한 결과, 19$\times$19 영상소의 기준영역이 상좌표취득에 있어 가장 적합한 크기임을 알 수 있었으며, 이러한 결과를 바탕으로 SPOT 위성자료를 해석함에 있어 수치영상의 활용에 관한 알고리즘을 제시할 수 있었다.

• 수산해양기술연구
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• 제56권2호
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• pp.155-162
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• 2020

The adjudication of Korean Maritime Safety Tribunal (KMST) was analyzed to collect basic data to identify the cause of the risk that did not appear in the current data provided by the fishermen's occupational accidents of the National Federation of Fisheries Cooperative (NFFC) in stow net fishing vessel from 2015 to 2019. The personnel's carelessness was the most common in 29 out of 33 accidents (87.9%), followed by 25 cases (75.8%) of inadequacy of instructions, 24 cases (72.7%) of inadequacy of education on hazard factor, 20 cases (60.6%) of no personal protection equipment, 18 cases (54.5%) of poor guard, 17 cases (51.5%) of inadequacy of work method, 16 cases (48.5%) of absence of emergency stop button, 14 cases (42.4%) of work practice of poor safety precautions that affected more than 40% of all accidents as accident causes. These causes had a strong influence on each other, and the ratio of accident causes is high. With this relationship, accidents can be prevented or the severity of human injury can be reduced if types of accident process can be estimated with a scenario, and the key points before the accident in the scenario are switched to safe points.

• Molecules and Cells
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• 제20권3호
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• pp.416-422
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• 2005

We previously used Southern blot analysis to detect restriction-length polymorphisms between male fertile and cytoplasmic male sterile (CMS) cytoplasms at the coxII and atp6 loci of the mtDNA of Capsicum annuum L. Two copies of atp6 were found in each male fertile and CMS pepper lines. Interestingly, one of the copies of atp6 in CMS pepper was a 3'-truncated pseudogene. The open reading frame of the coxII gene was the same in the fertile (N-) and CMS (S-) lines. However, the nucleotide sequence in the S-cytoplasm diverged from that in the N-cytoplasm 41 bp downstream of the stop codon. To develop CMS-specific sequence-characterized amplified region (SCAR) markers, inverse PCR was performed to characterize the nucleotide sequences of the 5' and 3' flanking regions of mitochondrial atp6 and coxII from the cytoplasms of male fertile (N-) and CMS (S-) pepper plants. Based on these data, two CMS-specific SCAR markers, 607 and 708 bp long, were developed to distinguish N-cytoplasm from S-cytoplasm by PCR. The CMS-specific PCR bands were verified for 20 cultivars containing either N- or S-cytoplasm. PCR amplification of CMS-specific mitochondrial nucleotide sequences will allow quick and reliable identification of the cytoplasmic types of individual plants at the seedling stage, and assessment of the purity of $F_1$ seed lots. The strategy used in this report for identifying CMS-specific markers could be adopted for many other crops where CMS is used for F1 seed production.

• 모자간호학회지
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• 제1권
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• pp.45-58
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• 1991

The purpose of this descriptive study was to investigate the determinants of mother's choice of infant feeding method on immediate postpartum period & the breast feeding practice after 1, 2, 3, 4, 5months. The subjects were 170 mothers who were delivered at 2 hospital, 2 OBGY clinics, 1 midwifery in Jinju, the data were collected from Jan. 1 to Feb. 20 of 1991, form each subject at two periods of time ; postpartum 2 or 3 days via interview, 5months via telephone interview. The results were as fellows : 1. The propotion of mother planned exclusive breast-feeding was 66.5%, milk feeding 17.6%, mixed feeding 15.9%, End 38.9% of mothers planned to breast-feed their infants for 4-6moths, 25.7% for more than 12 months. The major reasons for selection of milk feeding method were the presence of mother's job(26.7%), the conditions of breast & milk production(23.7%). 2. There were significant relations between the choice of feeding method & the presence of s job(p<.01), & parity(p<.01). 3. The percentages of subjects that were received education about the advantages & method of breast feeding were 63.5%, 38.2%, respectively, & the informants were mass media, 89.8%, 81.5%. 4. The most of mothers had the knowledge about the advantages of breast feeding. 5. The percentage of mothers that practiced breast feeding on postpartum were 75.9%. 6. The rates of breast feeding practice by duration were more than 5months, 60.5%, 1 month, 27.1%, 2-4 months. 12.3%. 7. The reasons for the stop of breast feeding were the decrease of milk volume(22.9%), the presence of mother's job(17.4%). 8. The duration of breast feeding practice were differed significantly by the presence of mother's job, type of delivery, rooming-in, planned duration of breast feeding, the first feeding time.

• Safety and Health at Work
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• 제13권3호
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• pp.343-349
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• 2022

Background: In the United States, the dairy product manufacturing industry has consistently had higher rates of work-related nonfatal injuries and illnesses compared to the national average for industries in all sectors. The selection and implementation of appropriate safety performance indicators are important aspect of reducing risk within safety management systems. This study examined the leading safety indicators implemented in the dairy product-manufacturing sector (NAICS 3115) and their perceived effectiveness in reducing work-related injuries. Methods: Perceptions were collected from individuals with safety responsibilities in the dairy product manufacturing facilities. OSHA Incident Rate (OIR) and Days away, restricted and transferred (DART) rates from 2013 to 2018 were analyzed. Results: The perceived most effective leading were safety observations, stop work authority, near miss reporting, safety audits, preventative maintenance, safety inspections, safety training attendance, and job hazard analysis/safety analysis, respectively. The 6-year trend analysis showed that those implementing all eight top indicators had a slightly lower rates than those that did not implement all eight. Production focused mentality, poor training, and lack of management commitment were perceived as the leading causes of injuries in this industry. Conclusion: Collecting leading indicators with the unique interest to meet the regulatory requirements and to document the management system without the actual goal of using them as input to improve the system most probably will not lead to an effective reduction of negative safety outcomes. For leading indicators to be effective, they should be properly selected, executed, periodically evaluated and actions are taken when necessary.

• 열처리공학회지
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• 제35권3호
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• pp.121-129
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• 2022

Recently the growth of the renewable energy production has caused the flexible operation in LNG combined cycle power plant. Due to the rapid start and stop operations, large CrMoV castings used for turbine casings and valve bodies could be distorted and lead to replacement or welding repair. This study was performed to find out the characteristics of the repair welding for a damaged CrMoV casting steel. A typical field repair method (arc & TIG welding) was applied to making specimens. The degraded N2 packing head sample from the steam turbine was used. The evaluations of weldments were carried out in terms of microstructural characterization, microhardness measurements, tensile, creep-rupture and fatigue tests. Color etching was also applied for better understanding of welding microstructures. As the boundary between HAZ and base material was deteriorated by welding, it caused microstructural changes formed during PWHT and the shortening of the remaining residual life. By comparing the properties according to repair welding method, it was possible to derive what important welding factors were. As a result, arc welding method is more suitable for repair welding on CrMoV castings.