• Journal of Preventive Medicine and Public Health
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• v.53 no.5
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• pp.307-310
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• 2020

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has placed unprecedented pressure on healthcare systems, even in advanced economies. While the number of cases of SARS-CoV-2 in Africa compared to other continents has so far been low, there are concerns about under-reporting, inadequate diagnostic tools, and insufficient treatment facilities. Moreover, proactiveness on the part of African governments has been under scrutiny. For instance, issues have emerged regarding the responsiveness of African countries in closing international borders to limit trans-continental transmission of the virus. Overdependence on imported products and outsourced services could have contributed to African governments' hesitation to shut down international air and seaports. In this era of emerging and re-emerging pathogens, we recommend that African nations should consider self-sufficiency in the health sector as an urgent priority, as this will not be the last outbreak to occur. In addition to the Regional Disease Surveillance Systems Enhancement fund (US$600 million) provided by the World Bank for strengthening health systems and disease surveillance, each country should further establish an epidemic emergency fund for epidemic preparedness and response. We also recommend that epidemic surveillance units should create a secure database of previous and ongoing pandemics in terms of aetiology, spread, and treatment, as well as financial management records. Strategic collection and analysis of data should also be a central focus of these units to facilitate studies of disease trends and to estimate the scale of requirements in preparation and response to any future pandemic or epidemic.

• Journal of Korean Society of Rural Planning
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• v.6 no.1 s.11
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• pp.3-9
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• 2000

Rural area is not only majority area of national territories but also conservative area of traditions. But, rural area is, compare to the urban area, keep at a distance from the progression of industrialization and construction of infrastructures, and depopulation by push/pull effect of industrialization caused aged residents of the rural area. vacated space of the rural region, and ruined the rural amenity. And the other side, investment for the agriculture and rural area was focused to development of water and land reclamation for improvement of rice cultivation since late of 1960. As same steps, the rural settlement regional planning project was implemented with nation wide scale ever since the 1990. But, there was no guidance and technique firmly settle down for the rural planning. The rural planning that have rationality and reasonability must be set by systematical approach of planning hierarchies and interdisciplinary of multiple area of research. Hence, the guidance compilation was proposed and implemented for the rural planner and engineers, although timely late.

• Journal of the Korean Vacuum Society
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• v.17 no.5
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• pp.473-480
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• 2008

We have investigated the optimal growth conditions of carbon nanotubes (CNTs) using the chemical vapor deposition and the Ni nanoparticle arrays. The diameter of the CNT is shown to be controlled down to below 20 nm by changing the size of Ni particle. The position and size of Ni particles are controlled continuously by using wafer-scale compatible methods such as lithography, ion-milling, and chemical etching. Using optimal growth conditions of temperature, carbon feedstock, and carrier gases, we have demonstrated that an individual CNT can be grown from each Ni nanoparticle with almost 100% probability over wide area of $SiO_2/Si$ wafer. The position, diameter, and wall thickness of the CNT are shown to be controlled by adjusting the growth conditions.

• International Journal of Aeronautical and Space Sciences
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• v.12 no.4
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• pp.346-353
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• 2011

In this study, the structural performance tests, i.e., static tests and dynamic tests of the composite wind turbine blade, were carried out by using the embedded fiber Bragg grating (FBG) sensors. The composite wind turbine blade used in the test is the 1/23 scale of the 750 kW composite blade. In static tests, the deflections along the blade were evaluated. Evaluations were carried out with simple beam theory and quadratic fitting method by using the embedded FBG sensors to predict the structural behavior with respect to the load. The deflections were compared to those obtained from the laser displacement sensor and electric strain gauges. They showed good agreement. Modal tests were performed to investigate the dynamic characteristics using the embedded FBG sensors. The natural frequencies obtained from the FBG sensors corresponding to the nine mode shapes of the blade were compared to those from the laser Doppler vibrometer. They were found to be consistent with each other. Therefore, it is concluded that the embedded FBG sensors have a great capability for measuring the structural performances of the composite wind turbine blade when structural performance tests are carried out.

• Journal of the Korean Society of Clothing and Textiles
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• v.25 no.2
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• pp.217-227
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• 2001

The purpose of this research was to investigate the difference in fabric preference of formal wear attire between the Korean and American female consumers. For such purpose, fabrics which were used in the womens formal wear market of Korean(n=25) and U.S.A.(n=25) in the 1999 spring/summer season were collected from different fabric converters of the two countries. The respondents were comprised of 50 Korean and 50 U.S.A. female volunteers in the age group of 20s and 40s. A 5 point Likert Scale was used to evaluate the degree of the \"like\" preference of fabrics. T-test and Spearmans rho statistics were conducted for data analysis. The followings are the results. 1. Korean 20s and American 20s preferred Korean fabrics but Korean 40s and American 40s preferred U.S.A. fabrics. 2. Generally, the 20s preferred greyish or tone down color, whereas the 40s preferred both greyish and colorful fabrics. 3. Koreans preferred melange colored fabrics as well as solid color fabrics. 4. Americans liked knit fabrics as well as woven fabrics for formal wear and 20s liked compact density fabrics compared to the 40s age group.age group.

• Journal of Korean society of Dental Hygiene
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• v.7 no.3
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• pp.247-258
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• 2007

This study intended to provide the basic data for developing the educational materials of the preventive measures of dental diseases and of the improvement method of oral health by examining hospitalized patients' knowledge and practice of oral health. It had a survey for 253 hospitalized patients in D General Hospital located in Ulsan from August 10, 2006 to September 10, 2006. The participants were requested to write down an answer to each question. In relation to the knowledge and practice of oral health, 15 questions were prepared respectively and 5-point scale was employed. The study results were as follows: 1. 53.8% of the participants were females and 25.3% was in the ages of 30~39, 44.7% was high school graduates and 26.1% had professional jobs. 41.9% was hospitalized for less than 5 days. 2. The participants' average knowledge of oral health was $3.79{\pm}0.88$ and their average practice was $3.15{\pm}0.98$, which tells that they knowledge oral health, but they are negligent at practicing it. 3. Female patients showed higher knowledge of oral health than males, and the patients in the ages of 30~39 showed the highest knowledge(pE0.05). In terms of the practice of dental health, younger patients showed higher points. The higher their educational and economic background were, the higher their knowledge and practice of oral health were. In addition, the patients involved in office works or public serves showed higher knowledge and practice too(pE0.05).

• Applied Chemistry for Engineering
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• v.17 no.6
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• pp.633-637
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• 2006

In this study, the efficient large-scale synthetic route for itraconazole, triazole antifungal agent, was developed. The original synthetic route for medicinal chemistry reported by Janssen Pharmaceutica was linear (14 linear steps) starting from 2,4-dichloroacetophenone with the total yield of 1.4%, and potential hazardous materials such as methanesulfonyl chloride ($CH_{3}SO_{2}Cl$), hydrogen gas, and sodium hydride (NaH) were used. Furthermore, the expensive 1-acetyl-4-(4-hydroxyphenyl)piperazine and palladium were used in this medicinal chemistry route, thus the manufacturing cost would be practically high. In order to improve the commercial route, we developed the process of 12 step convergent synthesis combining two intermediates which are roughly halves of itraconazole with the total yield of 12.0%, and hazardous materials and expensive reagents were excluded in this process, thus the manufacturing cost could be cut down to a great extent.

• Health Policy and Management
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• v.18 no.3
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• pp.110-127
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• 2008

Expenditures on pharmaceuticals of different concepts were estimated and their functional, financing and providers' breakdowns were examined in line with the OECD's System of Health Accounts (SHA) manual. This study also shows the way such estimates are made. The results are then analyzed particularly from the international perspective. Data from both Household Survey by the National Statistical Office and the National Health and Nutritional Survey by the Ministry of Health and Welfare of Korea were used to estimate pharmaceutical expenditures that. are financed by out-of-pocket payments of the household, while national health insurance data etc. were used for estimation of pharmaceutical expenditures that are financed by public funding sources. The 'per capita expenditure on pharmaceutical/medical non-durables' in Korea stood at 380 US$ PPPs, less than the OECD average of 443 US$ PPPs in 2006, but its share of the per capita health expenditure of 25.9% noticeably outnumbered the OECD average of 17.1%, due partly to low per capita health expenditure as a denominator of the ratio. This indicates that Koreans tend to spend less on health care than an OECD average, while tending to spend more on pharmaceuticals than on other health care services, much like the pattern found in relatively low income countries. An international pharmaceuticals pricing mechanism is most likely responsible for such a tendency. In addition, it is to be noted that the percentage comes down to 21.0%, when expenditures on both medical non-durables and herbal medicine, which is locally quite popular among the elderly, have been excluded.

• Journal of Korean Society for Geospatial Information Science
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• v.19 no.3
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• pp.13-21
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• 2011

In mobile environment supporting mobility technologies, user requirements have been increased with respect to utilization of location information. In particular, moving object DBMS has consistently posed in order to efficiently maintain traffic information related to location of vehicle which tents to tremendously change over time. Despite the fact that these sorts of researches must be taken into consideration, empirical studies on moving object in terms of map database for lbs service, spatial attribute of which is continuously changed over time, have rarely performed. Therefore, aim of this paper is to suggest efficient spatial index scheme, which is capable of supporting query processing algorithm and location of moving object over time, by developing new empirical model. As a result, we can come to the conclusion that moving object model based on multi-fixed grid index makes it possible to cut down on the number of entity for retrieving. What's more, this model enables hierarchical data to be accessed through efficient spatial filtering on large-scale lbs data and constraints in accordance with level in order to display map.

• Journal of the Korea institute for structural maintenance and inspection
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• v.14 no.6
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• pp.142-152
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• 2010

In this study, eleven reinforced concrete beams, without stirrup, using high ductile fiber-reinforced mortar with ground granulated blast furnace slag(SHF Series, SHFSC Series) and standard specimens without or with stirrup(SSS, BSS) were constructed and tested under monotonic loading. Experimental programs were carried out to improve and evaluate the shear performance of such test specimens, such as the load-displacement, the failure mode, the maximum strength, and shear strength. All the specimens were modeled in scale-down size. Test results showed that test specimens(SHF Series, SHFSC Series) was increased respectively the shear strength carrying capacity by 26%, 20% and the ductility capacity by 5.27, 5.75 times in comparison with the standard specimen without stirrup(SSS). And the specimens(SHF Series, SHFSC Series) showed enough ductile behavior and stable flexural failure.