• Proceedings of the Korean Magnestics Society Conference
• /
• 2011.12a
• /
• pp.9-10
• /
• 2011

We have prepared FePtCu L10 bit patterned media, of which magnetic properties and microstructural details are obtained by direct measurement and observations. The patterning process on the continuous film induced a drastic changes in the coercivity, SFD, and angular dependencies. The origin of the changes are explained by micromagnetic simulations with the finite element models including the details of the microstructures.

• Proceedings of the Korean Institute of Building Construction Conference
• /
• 2017.11a
• /
• pp.215-216
• /
• 2017

Existing studies highlights the problems about the negative-side waterproofing design of apartment complex underground structures. This study suggests the alternatives for waterproof design construction details of as a solution, and a review on the applicability of this new construction design details through a mock-up construction is provided.

• Proceedings of the Earthquake Engineering Society of Korea Conference
• /
• 2003.09a
• /
• pp.155-162
• /
• 2003

The evolved energy concept has been demonstrated to fir the seismic evaluation of various steel connection details with the objective basis. For this, the strain energy stored in the structural system obtained from the experimental database has been normalized by that of a benchmark system. In this notion, the ideal elastic-perfectly plastic structural system has been assumed as a benchmark. In addition, the attempt shows that those previously peformed experimental database can be recycled to have further significance.

• Proceedings of the Earthquake Engineering Society of Korea Conference
• /
• 2006.03a
• /
• pp.300-307
• /
• 2006

Integral pile shaft-column foundations are increasingly popular thanks to not only the comparative advantage of economy in constructing large cast-in-drilled-hole(CIDH) piles compared with driven piles with pile cap footings but also being free from problems associated with the critical column-footing connection. In this paper, the structural characteristics of integral pile shaft-column foundations as well as seismic analysis methodology and reinforcement details for seismic design are introduced.

• KSCE Journal of Civil and Environmental Engineering Research
• /
• v.35 no.1
• /
• pp.19-29
• /
• 2015

As the half-depth precast concrete decks are increasingly applied to the construction sites, researches on connection details have been increased. For design of concrete bridge deck with half-depth precast panels, it is required to provide appropriate details of transverse loop joints between panels. In this paper, the structural performance of precast decks was evaluated to investigate continuity of the proposed loop joint details. From the results, the validity of the joints for the continuity of deck was observed in the aspect of flexural strength and crack control. The ultimate strength increased 1.52 times as the reinforcement spacing in the joint was reduced. In terms of crack control, direct crack width calculation for the loop joint showed appropriate results comparing with measured crack width.

• Journal of the Korea Computer Graphics Society
• /
• v.8 no.3
• /
• pp.9-16
• /
• 2002

Recently, high dynamic range (HDR) compression has attracted much attention due to the wide availability of HDR images. In this paper, we present an HDR compression method using a progressive image, which is a multi-level image representation based on a progressive mesh. An HDR image can be decomposed into a base image and a sequence of details by conversion into a progressive image. This decomposition provides a good structure to highly compress the dynamic range while preserving image details. The base image and larger details are considerably scaled down but smaller details are slightly scaled down. Experimental results show that our method successfully generates HDR compressed images without halo artifacts by controlling two intuitive parameters.

• Journal of the Korea Fashion and Costume Design Association
• /
• v.11 no.2
• /
• pp.117-129
• /
• 2009

This study is to examine unmarried women's preferences about wedding dresses. This is researched with a survey of 300 unmarried women in Ulsan and Seoul. The survey inquires their preferences of silhouettes, necklines, materials, and details in wedding dress. 290 valid questionnaires are analyzed statistically. Statistical analysis is used average, frequency, and crosstabs with SPSS10.0. The results of this study are as below; As for an income level, the high-income brackets in Ulsan preferred X silhouette, whereas in Seoul H silhouette. The low-income brackets in both areas preferred X silhouette. In necklines, boat neckline was preferred in both areas regardless of incomes. In materials, in Ulsan, the high-income brackets preferred silk, but the low-income brackets in Ulsan preferred satin. In Seoul, silk was preferred regardless of incomes. In details, the high-income brackets in both areas preferred beads and ribbon. In the low-income brackets, embroidery decorations were preferred in Ulsan, whereas beads, jewels and ribbons in Seoul. As for personalities, X silhouette was preferred in most personalities, A silhouette in some personalities in Seoul. In necklines, boat neckline is preferred in most personalities. In materials, silk was preferred in most personalities. In details, beads and jewels were preferred in most personalities. As for ages, in most ages, X silhouette was preferred in Ulsan, and X and A silhouettes in Seoul. In necklines, in most ages, boat neckline was preferred in both areas. In materials, silk was preferred in most ages. In details, beads and jewels were preferred in most ages.

• Journal of Korean Society of Steel Construction
• /
• v.16 no.1 s.68
• /
• pp.169-180
• /
• 2004

One of the most influential elements is the moment resisting beam-to-column connection vis-a-vis the behavior and cost of multistory steel building frames. Majority of these connections are column flange connections attached to beam frames. This is called strong-axis connection. Another type of moment resisting connection commonly found in building frames is the web axis connection. In this type of connection, the beams are attached to the plane of the column web perpendicularly. It is called the weak-axis beam. and it tends to bend the column at its weak axis. In this study, some of the fundamental behaviors of beam-to-column connections were examined by changing the connection details as weil as comparing them with previous connection details. This study sought to develop the details in the beam-to-column connection in the weak axis for middle- and low-rise steel construction systems.

• KSCE Journal of Civil and Environmental Engineering Research
• /
• v.36 no.5
• /
• pp.747-756
• /
• 2016

In this paper, a connection details for precast arch structures was proposed. Experiments were performed to evaluate structural performance of the loop connection details satisfying current design requirements and of alternative details for improvement of constructability. Precast arch specimens considering the current design requirements showed higher structural capacity than a cast-in-place arch specimen. Crack width at the connection of arch crown showed smaller value than 0.2 mm due to increased compression force by the applied vertical load. Strengthening by wire-mesh at notch area of the connection improved initial crack control capability. Connection detail with couplers and headed bars showed similar capacity to the reference specimen. The alternative details to improve constructability of reinforcements can be used without decreasing structural performance. Specimens with smaller internal diameter of mandrel and shorter loop splicing than the current design codes showed worse behavior in terms of crack width control.

• Journal of the Korea institute for structural maintenance and inspection
• /
• v.19 no.1
• /
• pp.62-71
• /
• 2015

KCI 2012 and ACI318-11 contains development length provisions for the use of headed deformed bars in tension and does not allow their tension lap splices. In ACI318-11, the confinement factor, such as transverse reinforcement factor, is not used to calculate the development length of headed bars. The purpose of this experimental study is to evaluate the effect of confinement details to the lap splice performance of headed deformed reinforcing bars in grade SD400 and SD500. The confinement details are stirrups and tie-down bars in lap zone. Test results showed that specimens with only stirrups had the brittle failure and could not increase lap strengths, and that specimens with composite confinements by stirrups and tie-down bars had the flexural strengths over than nominal flexural strengths. Stirrups with tie-down bars can have an effect on improvement in lap splice of headed bars in grade SD400 and SD500.