• 기술혁신연구
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• 제28권4호
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• pp.165-175
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• 2020

본 View Point에서는 COVID-19으로 초래된 사회 경제적 새로운 질서(New Normal)에서 데이터 산업의 성장 가능성을 조망하고 데이터 비즈니스가 산업생태계에서 생존하는 데 필요한 요소와 전략을 살펴본다. 비대면 사회로의 전환은 데이터의 양적 팽창과 함께 집중화 현상 촉진으로 이어지고 있다. 국가적으로 데이터 산업생태계의 발전 전략을 수립하고 자본의 흐름이 뒤따르고 있는 지금은 데이터 비즈니스에 기회의 시기라고 할 수 있다. 특정 데이터 비즈니스가 산업 생태계에서 생존하고 성장하기 위해서는 안정적인 데이터 품질을 기반으로 경쟁사 대비 비교우위에 있는 품질 속성을 파악해야 하고 특히 어떤 비즈니스 세분화 영역에 해당하는지를 판단할 수 있어야 불필요한 자원투입의 낭비를 막고 효율적인 투자를 할 수 있다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제18권7호
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• pp.1907-1928
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• 2024

In recent years, multi-focus image fusion has emerged as a prominent area of research, with transformers gaining recognition in the field of image processing. Current approaches encounter challenges such as boundary artifacts, loss of detailed information, and inaccurate localization of focused regions, leading to suboptimal fusion outcomes necessitating subsequent post-processing interventions. To address these issues, this paper introduces a novel multi-focus image fusion technique leveraging the Swin Transformer architecture. This method integrates a frequency layer utilizing Wavelet Transform, enhancing performance in comparison to conventional Swin Transformer configurations. Additionally, to mitigate the deficiency of local detail information within the attention mechanism, Convolutional Neural Networks (CNN) are incorporated to enhance region recognition accuracy. Comparative evaluations of various fusion methods across three datasets were conducted in the paper. The experimental findings demonstrate that the proposed model outperformed existing techniques, yielding superior quality in the resultant fused images.

• Tuberculosis and Respiratory Diseases
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• 제47권6호
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• pp.757-767
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• 1999

Background: Diagnosis by smear and/or cultures of the Mycobacterium tuberculosis from body fluid or biopsy specimen is "Gold standard". However the sensitivity of the direct microscopy is relatively low and culture of mycobacteria is time consuming. Despite an explosion in the techniques of rapid identification of mycobacteria by molecular genetic means, it is laborious and expensive and then rapid, inexpensive serodiagnosis is interested in diagnosis of tuberculosis. But sensitivity and specificity of known serologic antigen is not full sufficient level and then new antigen develop and combination cocktails of new developed antigens by ELISA are needed. Method: To compare the efficacy of different mycobacterial specific antigen and to assess the applicability of the combination of several different antigens in the diagnosis of tuberculosis, five ELISA tests derived 14KDa, 16KDa, 19KDa, 23KDa, 38KDa were evaluated in 57 active pulmonary patient and 24 inactive post-therapy follow up patient and 48 normal control. Results: The optical densities of ELISA test with 14KDa, 16KDa, 19KDa, 23KDa, 38KDa were significantly higher in active tuberculosis cases than in normal control(P<0.001, P<0.001, P<0.027, P<0.001, P<0.001) and those with 16KDa, 38KDa were significant higher in active tuberculosis cases than in inactive post-therapy follow up cases(P<0.01. P<0.001) and those of 14KDa, 16KDa, 23KDa, 38KDa were significant higher in inactive post-therapy follow up cases than in normal control(P<0.008. P<0.01. P<0.006. P<0.001). The sensitivity of 14KDa, 16KDa, 19KDa, 23KDa, 38KDa in active pulmonary patient cases was 42.1%, 43.9%, 15.8%, 28.0%, 70.2%, respectively and the specificity of 14KDa, 16KDa, 19KDa, 23KDa, 38KDa in active pulmonary patient cases was 95.8%, 95.8%, 91.7%, 89.6%, 93.8%, respectively. The sensitivity and specificity of combination 38KDa with 16KDa was 87% and 93.7%. Conclusion: The sensitivity and specificity of new antigens for serodiagnosis of the tuberculosis still remains limited at around 70%, which makes its a poor diagnostic tool for disease confirmation. A combination of cocktail antigens provided by cut-off value adjustment for serodiagnosis of tuberculosis some improved diagnostic yield than single antigen serologic test.

• 약학회지
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• 제40권3호
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• pp.347-350
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• 1996

The post-antibiotic effect (PAE), which is defined as the period of time lag that the target organisms resume normal growth rate after complete removal of the antibiotics, of LB 20304 and ciprofloxacin was evaluated against Staphylococcus aureus 6538p and Escherichia coli 3190Y, respectively. The PAE was estimated by adding each antibiotic to a log phase of growth and incubating at $37^{\circ}$C for 1 h.Antibiotic was removed by centrifugation, and total viable cell counts were determined hourly for a further 10 h. The PAEs of LB20304 against S. aureus at concentrations of $1{\times}MIC\;and\;2{\mu}g/ml$ were 10 min and 93min, respectively. LB20304 showed a comparable PAE to ciprofloxacin. Against E. coli, the PAE of LB20304 was also similar to that of ciprofloxacin at concentration of $4{\times}MIC$ but it was much longer than that of ciprofloxacin at concentration of 2${\mu}g/ml$. LB20304 showed higher lethality than ciprofloxacin against both S. aureus and E. coli strains.

• 대한기계학회논문집
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• 제19권9호
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• pp.2283-2296
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• 1995

Experiments of normal shock wave/turbulent boundary layer interaction were conducted in a supersonic diffuser. The flow Mach number just upstream of the normal shock wave was in the range of 1.10 to 1.70 and Reynolds number based upon the turbulent boundary layer thickness was varied in the range of 2.2*10$^{[-994]}$ -4.4*10$^{[-994]}$ . The wall pressures in streamwise and spanwise directions were measured for two test cases, in which the turbulent boundary layer thickness incoming into the supersonic diffuser was changed. The results show that the interactions of normal shock wave with turbulent boundary layer in the supersonic diffuser can be divided into three patterns, i.e., transonic interaction, weak interaction and strong interaction, depending on Mach number. The weak interactions generate the post-shock expansion which its strength is strong as the Mach number increases and the strong interactions form the pseudo-shock waves. From the spanwise measurements of wall pressure, it is known that if the flow Mach number is low, the interacting flow fields essentially appear two-dimensional, but they have an apparent 3-dimensionality for the higher Mach numbers.

• 대한기관식도과학회지
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• 제16권1호
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• pp.16-19
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• 2010

NOTES (Natural orifice transluminal endoscopic surgery) is a new technique in minimally invasive procedure, surgeon use normal orifice and hollow viscus for procedurs as approaching route, Currently the NOTES are performed for diagnostic and therapeutic purpose by some investigators in research setting. NOTES has potential benefit in terms of sear, pain, post op recovery. Rut Bacterial contamination, deal with major complication are needed more stud) and development.

• 한국독성학회:학술대회논문집
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• 한국독성학회 2003년도 추계학술대회
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• pp.31-31
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• 2003

Magic technologies and smart biomarkers at the Omics Age！ This slogan is not only for the pharmaceutical companies as the speedy and cost-reduced development of global drug, but for all of the toxicologists and biologist. Biomarker refers to a variety of physiologic, pathologic, or anatomic measurements that are thought to relate to some aspect of normal or pathological processes (Temple 1995; Lesko and Atkinson 2001).(omitted)

• Child Health Nursing Research
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• 제22권4호
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• pp.326-335
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• 2016

Purpose: It is crucial to provide adequate enteral nutrition for postoperative recovery, wound healing and normal growth in infants in pediatric cardiac ICUs. This study was done to develop a feeding protocol using the vaso-active inotropic (VAI) score and to evaluate the impact of nutritional outcomes following the new feeding protocol for infants who underwent cardiac surgery. Methods: This study consisted of three phases. First, a feeding protocol was developed based on a literature review. Second, ten experts rated the content validity. Third, a comparison study was conducted to evaluate the impact of the new feeding protocol. Data were analyzed using SPSS Version 20. Results: Twenty-nine infants were enrolled in the pre-protocol group, and 22 infants in the post-protocol group. Patients in the 2 groups were similar. Time to reach feeding goal was significantly decreased from 56.0 (27-210) hours to 28.5 (10-496) hours in the post-protocol group (Z=-4.22, p<.001). Level of enteral feeding knowledge among nurses increased significantly after implementation of the protocol. Conclusion: The feeding protocol using VAI score facilitates the achievement feeding goal to decrease feeding interruptions and help nurses in their practice. Larger studies are necessary to examine clinical outcomes following the implementation of this feeding protocol.

• Steel and Composite Structures
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• 제44권3호
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• pp.407-421
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• 2022

Prefabricated hybrid wind turbine towers (WTTs) are promising due to height increase. This study proposes the use of ultra-high performance concrete (UHPC) to develop a new type of WTT without the need to use reinforcement. It is demonstrated that the UHPC WTT structure without reinforcing bars could achieve performance similar to that of reinforced concrete WTTs. To simplify the design of WTT, a design approach for the calculation of stresses at the horizontal joints of a WTT is proposed. The stress distribution near the region of the horizontal joint of the WTT structure under normal operating conditions and different load actions is studied using the proposed approach, which is validated by the finite element method. A further parametric study shows that the degree of prestressing and the bending moment both significantly affect the principal stress. The shear-to-torsion ratio also shows a significant influence on the principal tensile stress.

• 유통과학연구
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• 제19권11호
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• pp.5-15
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• 2021

Purpose: The current study aims at knowing and testing factors supporting business and how to distribute it for resilience business in new normal era. Factors Supporting business resilience will be seen in terms of entrepreneurial competence, technology utilization and government support for business resilience through entrepreneurial spirit as an intervening variable. Research design, data, and methodology: A constructed questionnaire in direct survey and interview was conducted with 97 respondents in South Sulawesi. Partial Least Square (PLS) analysis, was utilized to analyze and verify all the data. Results: This study indicated entrepreneurial competence and utilization of technology have a positive and significant effect on entrepreneurial spirit, while government support has no significant effect on entrepreneurial spirit. This study also indicated that entrepreneurial spirit has a significant effect on business resilience. Conclusion: To increase business resilience, it is very important to have entrepreneurial skills and mastery on utilization of technology. To anticipate future crises, entrepreneurial competencies must be evenly distributed both for business owners and for all members of the organization. To institutionalize crisis management in business, it is important for SMEs in Indonesia to develop an institutionalized Business Crisis Management.