• Structural Engineering and Mechanics
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• v.61 no.2
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• pp.245-253
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• 2017

The increasing lack of good quality soils allowing the development of roadway, motorway, or railway networks, as well as large scale industrial facilities, necessitates the use of reinforcement techniques. Their aim is the improvement of the global performance of compressible soils, both in terms of settlement reduction and increase of the load bearing capacity. Among the various available techniques, the improvement of soils by incorporating vertical stiff piles appears to be a particularly appropriate solution, since it is easy to implement and does not require any substitution of significant soft soil volumes. The technique consists in driving a group of regularly spaced piles through a soft soil layer down to an underlying competent substratum. The surface load being thus transferred to this substratum by means of those reinforcing piles, which illustrates the case of a piled embankment. The differential settlements at the base of the embankment between the soft soil and the stiff piles lead to an "arching effect" in the embankment due to shearing mechanisms. This effect, which can be accentuated by the use of large pile caps, allows partial load transfer onto the pile, as well as surface settlement reduction, thus ensuring that the surface structure works properly. A technique for producing rigid piles has been developed to achieve in a single operation a rigid circular pile associated with a cone shaped head reversed on the place of a rigid circular pile. This technique has been used with success in a pile-supported road near Bourgoin-Jallieu (France). In this article, a numerical study based on this real case is proposed to highlight the functioning mode of this new technique in the case of industrial slabs.

• Structural Engineering and Mechanics
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• v.64 no.6
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• pp.765-781
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• 2017

The out-of-plane response of infill walls has recently gained a growing attention and has been recognised fundamental in the damage assessment of reinforced concrete and steel framed buildings subjected to seismic loads. The observation of damage after earthquakes highlighted that out-of-plane collapse of masonry infills may occur even during seismic events of low or moderate intensity, causing both casualty risks and unfavourable situations affecting the overall structural response. Even though studies concerning the out-of-plane behaviour of infills are not as many as those focused on the in-plane response, in the last decades, a substantial number of researches have been carried out on the out-of-plane behaviour of infills. In this study, the out-of-plane response is investigated considering different aspects. First, damages observed after past earthquakes are examined, with the aim of identifying the main parameters involved and the most critical configurations. Secondly, the response recorded in about 150 experimental tests is deeply examined, focusing on the influence of geometrical characteristics, boundary conditions, prior in-plane damage, presence of reinforcing elements and openings. Finally, different theoretical capacity models and code provisions are discussed and compared, giving specific attention to those based on the arching theory. The reliability of some of these models is herein tested with reference to experimental results. The comparison between analytically predicted and experimental values allows to appreciate the extent of approximation of such methods.

• Advances in concrete construction
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• v.6 no.3
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• pp.245-268
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• 2018

The numerical investigations have been carried out on deep beam with opening subjected to static monotonic loading to demonstrate the accuracy and effectiveness of the finite element based numerical models. The simulations were carried out through finite element program ABAQUS/CAE and the results thus obtained were validated with the experiments available in literature. Six simply supported beams were modelled with two square openings of 200 and 250 mm sides considered as opening at centre, top and bottom of the beam. In order to define the material behaviour of concrete and reinforcing steel bar the Concrete Damaged Plasticity model and Johnson-Cook material parameters available in literature were employed. The numerical results were compared with the experiments in terms of ultimate failure load, displacement and von-Mises stresses. In addition to that, seventeen beams were simulated under static loading for studying the effect of opening location, size and shape of the opening and depth, span and shear span to depth ratio of the deep beam. In general, the numerical results accurately predicted the pattern of deformation and displacement and found in good agreement with the experiments. It was concluded that the structural response of deep beam was primarily dependent on the degree of interruption of the natural load path. An increase in opening size from 200 to 250 mm size resulted in an average shear strength reduction of 35%. The deep beams having circular openings undergo lesser deflection and thus they are preferable than square openings. An increase in depth from 500 mm to 550 mm resulted in 78% reduced deflection.

• Korean Journal of Adult Nursing
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• v.23 no.4
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• pp.403-411
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• 2011

Purpose: This study was designed to identify the relationship between preventive behavior and health belief about Hepatitis A among young adults. Methods: The sample consisted of 197 participants between the ages of twenty and forty. The data were collected from May 3 to May 30 2011 and analyzed using descriptive statistics, t-test, ${\chi}^2$-test, and Pearson correlation coefficients. Preventive Behavior's Scale about Hepatitis A and Health Belief's Scale about Hepatitis A were used for data collection. Results: The mean scores of health behavior ($2.97{\pm}0.34$) and preventive behavior ($2.46{\pm}0.30$) about Hepatitis A were about average degree. The participant's characteristics with preventive behavior were significantly different according to type of residence (${\chi}^2$=4.74, p =.040), experience of obtained knowledge about Hepatitis A (${\chi}^2$=5.68 p =.018) and attitude about Hepatitis A (${\chi}^2$=15.20, p<.001). Significant correlations were found between health behavior and preventive behavior with Hepatitis A (r=.20, p =.005). The preventive behavior had a significant positive correlation with susceptibility (r=.22, p =.001), severity (r=.17, p =.015), and benefit (r=.32, p<.001) towards Hepatitis A as the details of the health belief. Conclusion: These findings indicate that health belief may be necessary to improve compliance with preventive behavior on Hepatitis A among young adults. It is necessary to develop the strategy of reinforcing health belief in complying with preventive behavior for preventing the occurrence of Hepatitis A.

• The Journal of the Korea Contents Association
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• v.14 no.12
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• pp.796-807
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• 2014

This study examined effects of gender role conflicts, academic stress coping ability, and social support on adaptations to college life among male nursing students. Data were collected through self reported structured questionnaire form 225 male nursing students using convenient sampling methods from April 1 to June 4, 2014. Stepwise regression showed that academic stress coping ability had the greatest effect on adaptations to college life(${\beta}=0.33$, p<.001), followed by major satisfaction, social support, gender role conflicts and club activity. These variables together explained 33% of the adaptations to college life in male nursing students(F=23.50, p<.001). Therefore, programs for resolving gender role conflicts and reinforcing academic stress coping ability should be developed. And social support network which consist of professors and the senior-junior nursing students will help to improve adaptability to college life in male nursing students.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.6
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• pp.3931-3943
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• 2014

Domestic industrial complexes have more loss competitiveness due to their deterioration length and environmental problems. Therefore, it is necessary to suggest the direction of realignment as advanced industrial estates and establish new alternative plans for improving the quality of public and environmental designs as well as reinforcing the competitive power. This study examined the design planning factors affecting the service users' satisfaction in the Seoul Digital Industrial Complex through a PLS regression model. The research result showed that 12 crucial design planning factors out of a total 31 planning factors have a more than 1.0 VIP. In addition, 8 comparatively important planning aspects that were measured between 0.9 and 1.0 were also investigated. These factors were the strategic design planning factors estimating the quantitative priority while enforcing the design improvement project and they should be considered as a useful material for strengthening the competitive power of the Seoul Digital Industrial Complex.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.12
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• pp.6534-6541
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• 2013

The aim of this study was to develop a fiber-reinforced asphalt mixture that was designed to do the following: 1) address fatigue cracks, which is a major source of damage; and 2) increase the rutting resistance. This study reports the effects of the aggregate mixture design that incorporates a dumbbell-shaped fiber. An experiment was carried out to measure the unit weights and unit weight ratios between the mixture that was compacted and the one that was not. A method to substitute a specific aggregate mixture with the dumbbell-shaped fiber was confirmed using the volume concept according to the Bailey method. The results showed that the weight of the PCS aggregate mixture that need to be replaced was 11.88g when a 0.3% reinforcing fiber was added to the 1950g mixture.

• Journal of Korean Medical classics
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• v.26 no.4
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• pp.291-304
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• 2013

Objective : Jangjinyopyeon(藏珍要編, JJYP) was published in 1894. The purpose of the research is to know the character of JJYP, and to know JJYP inherited the tradition of Chosun(朝鮮) acupuncture which put emphasis on diagnosis and cure of Jangbu(臟腑) through meridian system. Method : First, identify the bibliographic information of the Mimeograph version of Original JJYP. After then, count and classify the provision by selected acupoints. Analyzed the result in succession. Conclusion : From the research of the mimeograph version of Original JJYP, come to following conclusion. 1. The pen name of author is Songgye(松溪), which means the region of his origin. 2. JJYP used 49 acupoints in total. It covers all regular meridian system except the regular Meridian of Hand Soeum[手少陰心經] for heart organ would never be injured in Neijing(內經) 3. JJYP suggested Eight Confluent points[八脈交會穴] as major acupoints in the end of book. But actually they were selected as the acupoints of belonging Jangbu(臟腑) and various symtoms. 4. Oegwan(外關) and Sameumgyo(三陰交) were maximum frequency in selecting of all acupoints, which means JJYP value controling and covering whole body. 5. Generally, Reinforcing and reducing manipulations concentrated one way, but Hugye(後谿) used each manipulation equally, which means JJYP regards tonification or purgation highly in Hugye(後谿). 6. Most acupoints of high frequency were Nak-point[絡穴], Won-point[原穴], Hap-point[合穴], which supposed to be directly connected to Jangbu(臟腑). So, we can see JJYP continue the tradition of Chosun acupuncture which put emphasis on Jang image[藏象] of meridian.

• Journal of Information Technology Services
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• v.19 no.5
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• pp.33-47
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• 2020

In recent years, due to the demand for operating efficiency and cost reduction of industrial facilities, remote access via the Internet is expanding. the control network accelerates from network separation to network connection due to the development of IIoT (Industrial Internet of Things) technology. Transition of control network is a new opportunity, but concerns about cybersecurity are also growing. Therefore, manufacturers must reflect security compliance and standards in consideration of the Internet connection environment, and enterprises must newly recognize the connection area of the control network as a security management target. In this study, the core target of the control system security threat is defined as the network boundary, and issues regarding the security architecture configuration for the boundary and the role & responsibility of the working organization are covered. Enterprises do not integrate the design organization with the operation organization after go-live, and are not consistently reflecting security considerations from design to operation. At this point, the expansion of the control network is a big transition that calls for the establishment of a responsible organization and reinforcement of the role of the network boundary area where there is a concern about lack of management. Thus, through the organization of the facility network and the analysis of the roles between each organization, an static perspective and difference in perception were derived. In addition, standards and guidelines required for reinforcing network boundary security were studied to address essential operational standards that required the Internet connection of the control network. This study will help establish a network boundary management system that should be considered at the enterprise level in the future.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.4
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• pp.1518-1524
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• 2012

A Brand is supposed to age as it goes by, following a brand life cycle, as it is not a solid, immutable asset but something of a living creature. Therefore, self-renovation and revitalization efforts are needed, in order to incessantly confirm the self existence through the relationship with the consumer. In 2009 and 2011, 'Beksul', brand in maturity stage tried to revitalize Brand and the brand image two-times. For this study, brand logo and TV commercials of Beksul for revitalization were gathered via TVCF.com and their creative strategy were studied. This study could find that the creative strategy of brand in maturity stage is based on its brand essence and focused on reinforcing brand royalty.