• Title/Summary/Keyword: Technical Level

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A Social Study Approach to Education for Environmental Administration Specialists (환경행정전문가 양성을 위한 사회교육적 접근)

  • 신현덕
    • Hwankyungkyoyuk
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    • v.2 no.1
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    • pp.100-106
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    • 1991
  • Environmental professional education in Korea has been mostly concentrated on the scientific and technological approaches to environmental problems. Many undergraduate majors in environmental engineering or sciences are designed to produce more technical manpowers in environmental fields. Most graduate schools on the environment also place an emphasis on teaching the technical aspects of environmental problems. Some environmental administration related courses, such as environmental law, environmental administration, environmental policy, environmental economics, environmental impact assessments, etc. are partically reflected in some curricula of very limited graduate or undergraduate environment majors. However, teaching environmental administration related courses in science or engineering major institutions has not been successfully carried out so far because lack of interests in such courses by most students and the shortage of competent teachers as well. Furthermore, those courses are not widely accepted by the departments of law, political science, public administration, etc. because their major interests are not in the environment-oriented. Environmental problems cannot be solved by the technical approach along. They should be systematically dealt with through interdisciplinary or multidisciplinary approaches, including natural and social sciences covering all relevant disciplines. in this respect, undergraduate environmental education should preferably cover broader courses on the environment, and the education for environmental professionals, including environmental administration specialists, is preferably handled by graduate schools offering many specialty area courses. Education for environmental administration specialist at graduate level is urgently needed in order to supply the competent manpower at government, business, and private organization levels dealing with environmental administration related problem. This is a new challenging area and the education for such specialists will become more important in the near future than technical manpowers which we ate now concentrating on their education.

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Electrical and Structural Design of Air-conditioning Fan Motor for Noise Reduction

  • Han Hyung-Suk;Mo Jin-Yong;Kim Chang-Hyun;Lee Jae-Kwon;Jeong Weui-Bong
    • Journal of Mechanical Science and Technology
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    • v.20 no.10
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    • pp.1653-1661
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    • 2006
  • AC induction motors have been widely used for fan motor of the air conditioner indoor unit. Noise of these AC induction motors is usually caused by the coupling effects of structural and electrical systems. The rotating torque and the noise from AC induction motor were discussed in this paper,. First, the modification of motor was carried out in order to reduce the unbalance magneto motive force between main and sub winding. Second, structural modification based on normal mode analysis and modal testing was carried out so that the fan motor does not have the natural frequencies near the 2f-line frequency. Numerical modifications through these two processes were verified by experiments, which showed that the sound pressure level at 2f-line frequency of the modified system became about 25dB less than that of conventional one.

A study on the introduction of standard specifications for the various fields of electrical installation & construction (전기설비 분야별 표준시방서 도입방안에 대한 고찰)

  • Kim, H.J.;Kim, D.S.;Lee, H.K.;Han, S.O.
    • Proceedings of the KIEE Conference
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    • 2005.11c
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    • pp.39-43
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    • 2005
  • There are big differences between developed countries and Korea regarding to the circumstances of electrical installation construction. In other words, Korea, in spite of its small market size, has large pools of electrical construction companies or associated workers, and there are a lot of poorly electrical construction companies in domestically. Thus, in reality, it is difficult to invest in technical development to enhance Korea's technical level on electrical installation and companies are likely to construct as occasion demands instead of constructing in a technical manner. Therefore, the government needs to develop a standard specification as a guideline for stable, economical and technical electrical installation construction. With this standard specification, almost all electrical construction companies could practically use it and also could guarantee their construction quality as well. It is important to induce small companies to utilize the standard specification to secure their construction excellent quality so that the life of the nation, individual's properties and national properties could be well protected.

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Research on Industrial High Schools Technical Subjects Teachers' Perception and Present Situation and Toward Education for Sustainable Development(ESD) (공업계열 전문 교과 교사의 지속가능발전교육에 대한 인식과 실태에 관한 연구)

  • Choi, Jae-Woo;Lee, Eun-Woo;Kim, Dong-Yeub
    • Journal of the Korean Society of Industry Convergence
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    • v.13 no.3
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    • pp.183-189
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    • 2010
  • The purpose of this study was to examine the Industrial High Schools Technical Subjects teachers' perceptions and attitudes toward sustainable development(SD). The instrument consisted of totally 12 items. The subjects of this study were 98 Industrial High Schools Technical Subjects teachers. The period of survey is from June 23 to July 15 of 2010. The questionnaire included items asking whether they heard about terms such as sustainability or sustainable development, the source of information on SD, the level of understanding or the urgent task 2 for SD in Korea. Result of survey is following. First, Teacher thought that urgent task for SD is conservation of natural environment. Second, Most of the teacher consider the concept SD as 'pursuing the balance between environmental protection and economic development, and some of the teachers recognized the concept of SD in the paradigm of continuous economic development. Third, half of teachers have not heard terminology of SD .and 80% of them have not conducted ESD. Fourth, a few of teachers replied that obstacle of ESD is shortage of teacher's professionalism.

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A study on the Relationship between Organizational Member′s Information Security Mind and Organizational Information Security Level (조직구성원의 정보보안 의식과 조직의 정보보안 수준자의 관계 연구)

  • 정해철;김현수
    • The Journal of Information Technology and Database
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    • v.7 no.2
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    • pp.117-134
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    • 2000
  • This study examines the relationship between the organizational member's information security mind and organizational information security level. The influential relationships among organizational members' information security mind are investigated, and the relationship between organization's information security level and information security mind has been analyzed. As a result, too manager's information security mind is shown to give the biggest influence to other group in the organization. A strong positive correlation exists between organizational member's information security mind and the level of organization's physical, technical, managerial information security. However, there is no significant difference in information security level by types of business. In the future, a more profound study on information security mind is necessary. And alternative methods of information security level estimation need to be studied.

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RNA-Seq explores the functional role of the fibroblast growth factor 10 gene in bovine adipocytes differentiation

  • Nurgulsim Kaster;Rajwali Khan;Ijaz Ahmad;Kazhgaliyev Nurlybay Zhigerbayevich;Imbay Seisembay;Akhmetbekov Nurbolat;Shaikenova Kymbat Hamitovna;Omarova Karlygash Mirambekovna;Makhanbetova Aizhan Bekbolatovna;Tlegen Garipovich Amangaliyev;Ateikhan Bolatbek;Titanov Zhanat Yeginbaevich;Shakoor Ahmad;Zan Linsen;Begenova Ainagul Baibolsynovna
    • Animal Bioscience
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    • v.37 no.5
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    • pp.929-943
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    • 2024
  • Objective: The present study was executed to explore the molecular mechanism of fibroblast growth factor 10 (FGF10) gene in bovine adipogenesis. Methods: The bovine FGF10 gene was overexpressed through Ad-FGF10 or inhibited through siFGF10 and their negative control (NC) in bovine adipocytes, and the multiplicity of infection, transfection efficiency, interference efficiency were evaluated through quantitative real-time polymerase chain reaction, western blotting and fluorescence microscopy. The lipid droplets, triglycerides (TG) content and the expression levels of adipogenic marker genes were measured during preadipocytes differentiation. The differentially expressed genes were explored through deep RNA sequencing. Results: The highest mRNA level was found in omasum, subcutaneous fat, and intramuscular fat. Moreover, the highest mRNA level was found in adipocytes at day 4 of differentiation. The results of red-oil o staining showed that overexpression (Ad-FGF10) of the FGF10 gene significantly (p<0.05) reduced the lipid droplets and TG content, and their down-regulation (siFGF10) increased the measurement of lipid droplets and TG in differentiated bovine adipocytes. Furthermore, the overexpression of the FGF10 gene down regulated the mRNA levels of adipogenic marker genes such as CCAAT enhancer binding protein alpha (C/EBPα), fatty acid binding protein (FABP4), peroxisome proliferator-activated receptor-γ (PPARγ), lipoprotein lipase (LPL), and Fas cell surface death receptor (FAS), similarly, down-regulation of the FGF10 gene enriched the mRNA levels of C/EBPα, PPARγ, FABP4, and LPL genes (p<0.01). Additionally, the protein levels of PPARγ and FABP4 were reduced (p<0.05) in adipocytes infected with Ad-FGF10 gene and enriched in adipocytes transfected with siFGF10. Moreover, a total of 1,774 differentially expressed genes (DEGs) including 157 up regulated and 1,617 down regulated genes were explored in adipocytes infected with Ad-FGF10 or Ad-NC through deep RNA-sequencing. The top Kyoto encyclopedia of genes and genomes pathways regulated through DEGs were the PPAR signaling pathway, cell cycle, base excision repair, DNA replication, apoptosis, and regulation of lipolysis in adipocytes. Conclusion: Therefore, we can conclude that the FGF10 gene is a negative regulator of bovine adipogenesis and could be used as a candidate gene in marker-assisted selection.

Evaluation of Prognostic Factors and Survival Results in Pancreatic Carcinomas in Turkey

  • Canyilmaz, Emine;Serdar, Lasif;Uslu, Gonca Hanedan;Soydemir, Gulsen;Bahat, Zumrut;Yoney, Adnan
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.11
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    • pp.6573-6578
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    • 2013
  • Background: The goal of this retrospective study was to evaluate patient characteristics, treatment modalities and prognostic factors in Turkish patients with pancreatic cancer. Materials and Methods: Between January 1997 and December 2012, 64 patients who presented to the Department of Radiation Oncology, Karadeniz Technical University, Faculty of Medicine with a diagnosis of pancreatic cancer were evaluated. The E/K ratio of the cases was 2.4/1 and the median age was 59.6 (32-80) years, respectively. Some 11 cases (18%) were stage 1, 21 (34.4%) were stage 2, 10 (16.4%) were stage 3, and 19 (31.1%) were metastatic. Results: The mean follow-up time was 15.7 months (0.7-117.5) and loco-regional recurrence was noted in 11 (40.7%) who underwent surgery while metastases were observed in 41 patients (66.1%). The median overall survival (OS) was 11.2 months and the 1, 3 and 5-year OS rates were 41.7%, 9.9% and 7.9% respectively. The median disease-free survival (DFS) was 5.2 month and the1, 2 and 5 year DFS were 22.6%, 7.6% and 3.8% respectively. On univariate analysis, prognostic factors affecting OS included status of the operation (p<0.001), tumor stage (p=0.008), ECOG performance status (p=0.005) and CEA level (p=0.017).On multivariate analysis, prognostic factors affecting survival included status of the operation (p=0.033) and age (p= 0.023). Conclusions: In the current study, age and operation status were independent prognostic factors for overall survival with pancreatic patients. Thus, the patients early diagnosis and treatment ars essential. However, prospective studies with more patients are needed for confirmation.

A Study of Analytical Sensitivity on TDM Test Kit in Clinical Chemistry (약물검사 키트의 분석 민감도에 대한 연구)

  • Chang, Sang Wu;Kim, Nam Yong;Lee, Hee Gyung;Kim, Hyun Jung;Lee, Yun Jung;Jin, Ok Bae;Kim, Mi Gyung
    • Korean Journal of Clinical Laboratory Science
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    • v.36 no.2
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    • pp.127-130
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    • 2004
  • Analytical sensitivity on TDM test is the lowest concentration that can be distinguished from background noise. The aim of study was to evaluate analytical sensitivity that is also referred to as the lower limit of detection(LLD) about difference between zero calibrator and isotonic saline sample. We tested for 10 days with zero calibrators and 0.85% saline samples while running trilevel control samples under control. Raw data divided by two groups calculated mean and standard deviation from two sample populations and analytical sensitivity by ${\bar{X}}+2SD$. In comparison with isotonic saline samples and zero calibrators, there were significant differences in phenytoin, phenobarbital and vancomycin, etc. Especially analytical sensitivity on phenytoin is at the same level as the upper limit of analytical measurement range with $40{\mu}g/mL$. We think the cause of this is matrix interference. In conclusion, we were sure that standard protocol for analytical sensitivity as lower limit of analytical measurement range on TDM test must be measured with zero standard rather than an isotonic saline sample and type 1 reagent DW for reducing matrix effects within interactions between different materials in a mixture.

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A Convergence Comparative Study on Perception toward Technical Vocational Education Training (TVET) and General Higher Education in Cambodia (캄보디아의 일반고등교육 (GHE)과 직업기술교육훈련 (TVET)에 대한 인식차이 비교 융복합 연구)

  • Chanrithy, Sok;Bang, Yong-Hwan
    • Journal of the Korea Convergence Society
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    • v.12 no.7
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    • pp.83-92
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    • 2021
  • The purpose of this study is to explore the perception to Technical Vocational Education and Training (TVET) and General Higher Education (GHE) of students, teachers and TVET institutes' directors in Cambodia. As a research method, the study conducted the focus group discussions at Regional Technical Centers in the five representative regions from May to June in 2019. The result was TVET graduates have better chance with linkage in the labour market than GHE graduates through skill-focused curriculum and public private partnership between institutions and enterprises in Cambodia. The study recommend to implement a national strategy to improve the status and awareness of technical skills related jobs and the career pathways for the technical skill level courses.

Efficient Utilisation of Credit by the Farmer - Borrowers in Chittoor District of Andhra Pradesh, India - Data Envelopment Analysis Approach

  • Kumar, K. Nirmal Ravi
    • Agribusiness and Information Management
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    • v.8 no.2
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    • pp.1-8
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    • 2016
  • The present study has aimed at analyzing the technical and scale efficiencies of credit utilization by the farmer-borrowers in Chittoor district of Andhra Pradesh, India. DEA approach was followed to analyze the credit utilization efficiency and to analyze the factors influencing the credit utilization efficiency, log-linear regression analysis was attempted. DEA analysis revealed that, the number of farmers operating at CRS are more in number in marginal farms (40%) followed by other (35%) and small (17.5%) farms. Regarding the number of farmers operating at VRS, small farmers dominate the scenario with 72.5 per cent followed by other (67.5%) and marginal (42.5%) farmers. With reference to scale efficiency, marginal farmers are in majority (52.5%) followed by other (47.5%) and small (25%) farmers. At the pooled level, 26.7 per cent of the farmers are being operated at CRS, 63 per cent at VRS and 32.5 per cent of the farmers are either performed at the optimum scale or were close to the optimum scale (farms having scale efficiency values equal to or more than 0.90). Nearly 58, 15 and 28 percents of the farmers in the marginal farms category were found operating in the region of increasing, decreasing and constant returns respectively. Compared to marginal farmers category, there are less number of farmers operating at CRS both in small farmers category (15%) and other farmers category (22.5%). At the pooled level, only 5 per cent of the farmers are operating at DRS, majority of the farmers (73%) are operating at IRS and only 22 per cent of the farmers are operating at CRS indicating efficient utilization of credit. The log-linear regression model fitted to analyze the major determinants of credit utilization (technical) efficiency of farmer-borrowers revealed that, the three variables viz., cost of cultivation and family expenditure (both negatively influencing at 1% significant level) and family income (positively influencing at 1% significant level) are the major determinants of credit utilization efficiency across all the selected farmers categories and at pooled level. The analysis further indicate that, escalation in the cost of cultivation of crop enterprises in the region, rise in family expenditure and prior indebtedness of the farmers are showing adverse influence on the credit utilization efficiency of the farmer-borrowers.