Journal of the Korea institute for structural maintenance and inspection
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v.18
no.3
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pp.101-107
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2014
Damage location and extent of structure could be detected by the inverse analysis on dynamic response properties such as frequencies and mode shapes. The dynamic response of building structures has many noise and affected by nonstructural members and, above all, the behavior of building structure is more complex than civil structure and this makes the damage detection difficult. In recent researches the damage is detected by the indirect index such as sensitivity or assumed values. However, for the more reasonable damage detection, it needs to use the damage index directly induced from dynamic equation. The purpose of this study is to provide the damage detection method on shear building structures by the damage index directly induced from dynamic equation. The provided damage index could be estimated from measured mode shape of undamaged structure and frequency difference between undamaged and damaged structure. The damage detection method is applied to numerical analysis model such as MATLAB and MIDAS GENw for the verification. The damage index at damaged story represents (-) sign and 15 times than other undamaged sories.
This study was performed to investigate the relation between Iridological constitution and Gynecological disease. Iris is one of the most complicated part of our bodies. It reflects perfectly organ's status, toxic accumulation, person's characteristics and healing effects. Many signs of Iridology were closely researched to examine the relation between Iridology and disease. After studying these matters, we could find that lacuna and auto-nerve wreath are intimately related. Especially the portions of auto-nerve wreath loss are accorded with the organ's present illness. Most of patients have scurf ring and vessel congestion sign. Large Intestine's structure also shows us the meaningful result that ballooned is the most common, spasticity and stricture are next. Connective tissue weakness constitution is 39.22%, complex 35.29% and blood-originated 25.49%. According to the three-step constitution by the Genetic facter, average type is 52.94%, weak type 35.29% and strong type 11.76%. Above these results, we can reach a conclusion that Iridological constitution are intimately related with Gynecological disease. And further study are requested to get a objectivity in a Gynecological diagnose. Iridology is a bright prospective study and interesting diagnostic method. If we deeply investigate this science, before long we can have a great outcome and more objective diagnostic skill.
The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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v.8
no.4
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pp.349-356
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2003
A continuous monitoring of sedimentation rate and textural characteristics of surface sediments was carried out on the tidal flats in Kwangyang Bay, middle South Sea for two years on an every-two-monthly basis. This study shows that during the winter the tidal flats receive a thin surface layer of which texture becomes finer. In summer, the surface sediments were subject to rather abrupt erosion by occational typhoons and heavy rainfall resulting in a coarse-silt dominated texture. Due to nearly closed geomorphology of Kwangyang Bay, local waves created in the bay during winter are much subdued, in contrast to the rough wave climate and associated sedimentary cycle for open-type tidal flats in the Yellow Sea. In addition, unexpected artificial effects on the tidal-flat sedimentation by construction of a huge industrial complex along the shoreline of the bay are observed from a nearby tidal flat. Here, the sediments were consistently eroded without any sign of natural seasonal variations.
The Journal of Korean Institute of Communications and Information Sciences
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v.35
no.5C
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pp.479-486
/
2010
In this paper, we propose a novel low-complexity Alamouti coded orthogonal frequency division multiplexing (OFDM) scheme for asynchronous cooperative communications. Exploiting the combination of OFDM symbols at the source node and simple operations including sign change and complex product at the relay node, the proposed scheme can achieve cooperative diversity gain without use of time-reversion and shifting operations that the conventional scheme proposed by Li and Xia needs. In addition, by using the cyclic prefix (CP) removal and insertion operations at the relay node, the proposed scheme does not suffer from a considerable degradation of bit-error-rate (BER) performance even though perfect timing synchronization is not achieved at the relay node. From the simulation results, it is demonstrated that the BER performance of the proposed scheme is much superior to that of the conventional scheme in the presence of timing synchronization error at the relay node. It is also shown that the proposed scheme obtains two times higher diversity gain compared with the conventional scheme at the cost of half reduction in transmission efficiency.
This study is to seek alternatives for regional governance related to transnational labor migration issues in Southeast Asia. This study examined the present situation and trends of labor migration in the region, reviewed involved transnational issues, and identified the current issues of governance to seek alternatives for regional governance. The increase in cross-border labor migration is no doubt a sign of growth and dynamism of the region and greater integration of their economies. But it also poses complex policy and management issues as well as transnational issues over such as unequal economic profits, illegal migration, human rights, and social security issues. In this reality, regional governance is a very important theme and the efforts to manage their migration inherently involve fundamental conflict and tension between related countries and regions. However, politics and governance of transnational migrant workers in Southeast Asia are still pursued at the national level. To resolve these issues, it is urgently required to secure not only collaboration between the parties concerned but also governance at the regional level. Findings of this study are: First, although labor migration has been a relatively long-time transnational issue, the history of addressing the issue at the regional governance is very short and still inceptive. Second, given its size, labor migration in Southeast Asia requires effective regional governance but no breakthrough was possible due to the conflict of interests between origin and destination countries and the conflict of logic between the labor market and the state. Third, the issue of labor migration is an important element for the formation of economic and socio-cultural communities the ASEAN countries have pursued. Fourth, it is urgently needed to seek alternatives for good and effective regional governance as a key to resolving these issues over migrant workers in Southeast Asia.
Park, Han Na;Son, Jeong Eun;Choi, In Kyu;Paik, Jin Kyung
Korea Science and Art Forum
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v.37
no.4
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pp.149-159
/
2019
This research was started to identify the color status of signboards at the target site and suggest the direction of improvement for the signboard project in Dongsang-dong, Jongno-gil, a central area of the old city center of Gimhae. The area under study forms a depressed street atmosphere with old facilities, and is a typical type of old city center sign that needs to be rebuilt. The purpose of this study is to investigate prior research related to signage and similar signboard improvement cases, and then to identify the current status of colors by sorting out the casting, auxiliary and highlighted colors through the survey of the color of the signboard in the target area, and to propose a desirable direction for the future sign business based on the basis of these findings. This paper divided the target sections by industry and conducted a color analysis of signboards. The results and contents of the research are as follows. First, cast-colored signboards in general businesses showed a variety of primary color distributions with high L* values, on average, with high intensity and high chromaticity. Second, the auxiliary colors were mostly white or black in color-free, making a contrast between the casting colors. Third, the highlight was that a* value showed a high distribution in positive water plus and was mainly distributed in obsolescence, such as red or yellow, and color was used to reflect the characteristics of each store. However, the stores in the entire section lack unity because they were using colors that were higher in color than middle colors, which was causing the street's aesthetic look to be undermined. Based on the results of these studies, it is thought that the future color scheme for Gimhae's signature improvement project will limit the number of colors to a certain extent and give a sense of security and visual comfort to the use of colorlessness and obscurity around the representative colors of Gimhae.
By the revision of the Commercial Code of Korea in 1991 and 2007, some provisions for the regulation of Time Charterparty have been introduced into our own maritime law system. But, those provisions are in their nature mainly the reproduction of the provisions prescribed in the standard forms of time charterparty which are widely used, such as BALTIME Charter and NYPE Form, and the subject matters of their regulation are restrictive, so that the applicability of the provisions is not desirable. The cargo is lost or damaged, the cargo owner should seek compensation form, or sue, the carrier as, traditionally, under the COGSA, the cargo carrier is responsible for loss of damage of cargo. However, it is difficult to determine who is the responsible carrier under charters. There is no test to determine the carrier, but the courts in every country generally consider the bill of lading. Although the master has general authority to sign bills of lading on behalf of the shipowner, he can also sign bills of lading for, and on behalf of, the charterer. In this case, the charter is considered the carrier. Furthermore, the charterer is authorized to contract with third parties on behalf of the shipowner and, as such, the responsible carrier is the shipowner. Therefore, when determining the carrier we should examine carefully the all factors and the circumstances surrounding the case. Also, negligence of a captain of a time-chartered ship causing damages to a third party. It will analyze the legal character of a time-charter contract, review judicial precedents on time-charter. The Inter-Club Agreement was drawn up and is intended to be a somewhat easier way of allocating liability for cargo claims between owners and charterers and, although there is still scope for disputes to arise, the Inter-Club Agreement does in fact to some extent make the allocation of liabilities for cargo claims easier. Finally, it will also make legislative suggestions to resolve complex issues involving maritime transportation contracts under the current Commercial Code.
Journal of the Institute of Electronics Engineers of Korea CI
/
v.40
no.6
/
pp.47-55
/
2003
In this paper, we propose a new approach to detect peculiar features of license plates using intensity vector and composite color component in order to extract license plates from parking regulation images, which is captured in various locations around the front or the rear of cars at various times and places, and in which complex background is included. We fundamentally use both features that intensity value repeats frequently increasing and decreasing because intensity is obviously different at numerics and background, and that color is uniform in the area of license plates. First, we search each row at regular intervals starting from the bottom of a license-plate image, and we set up a rough region for a certain zone in which tile sign of intensity vector changes frequently enough and color of license plate is detected enough, assuming it as a candidate location of a license plate. And then, we extract an elaborate area of a license plate by projecting vertical edges horizontally and vertically. Here, type of cars, such as the urinate and the public, is easily classified according to the color of extracted plates. We used 200 actual regulation images, which are captured at various times and places, to evaluate the performance of the proposed method. As a result, the proposed method showed extraction rate of 96%, which is 9% higher than the previous method using only intensity vector.
Chung, Hoe Jeong;Kim, Seong-yup;Byun, Chun Sung;Kwon, Ki-Youn;Jung, Pil Young
Journal of Trauma and Injury
/
v.29
no.4
/
pp.204-208
/
2016
For an orthopaedic surgeon, the critical decisions to either amputate or salvage a limb with severe crushing injury with progressive ischemic change due to arterial rupture or occlusion can become a clinical dilemma at the Emergency Department (ED). And reperfusion injury is one of the fetal complications after vascular reconstruction. The authors present a case which was able to save patient's life by rapid vessel ligation at bedside to prevent severe reperfusion injury. A 43-year-old male patient with no pre-existing medical conditions was transported by helicopter to Level I trauma center from incident scene. Initial result of extended focused assessment with sonography for trauma (eFAST) was negative. The trauma series X-rays at the trauma bay of ED showed a multiple contiguous rib fractures with hemothorax and his pelvic radiograph revealed a complex pelvic trauma of an Anterior Posterior Compression (APC) Type II. Lower extremity computed tomography showed a discontinuity in common femoral artery at the fracture site and no distal run off. Surgical finding revealed a complete rupture of common femoral artery and vein around the fracture site. But due to the age aspect of the patient, the operating team decided a vascular repair rather than amputation even if the anticipated reperfusion time was 7 hours from the onset of trauma. Only two hours after the reperfusion, the patient was in a state of shock when his arterial blood gas analysis (ABGA) showed a drop of pH from 7.32 to 7.18. An imminent bedside procedure of aseptic opening the surgical site and clamping the anastomosis site was taken place rather than undergoing a surgery of amputation because of ultimately unstable vital sign. The authors would like to emphasize the importance of rapid decision making and prompt vessel ligation which supply blood flow to the ischemic limb to increase the survival rate in case of profound reperfusion injury.
Journal of the korean academy of Pediatric Dentistry
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v.39
no.3
/
pp.301-305
/
2012
The odontoma is a hamartoma of odontogenic origin and consists of enamel, dentin, cementum and pulp tissue. Two types of odonotma are histologically recognized: complex and compound. Odontoma may be the cause of noneruptoin or impaction of teeth, formation of cyst and resorption of adjacent bone. The recommended treatment for an odontoma is conservative surgical excision. No propensity for recurrence has been noted. Peripheral odontoma is relatively rare lesion and shows the histological characteristics of an intraosseous odontoma. This report described a 3-year-old Korean girl with a firm gingival mass in the posterior mandibular area, which had been gradually enlarging over 18months. Radiographic examination showed a radiopaque mass but no evidence of underlying intraosseous lesion. Excisional biopsy was performed for the mass removal and histopathological examination. The result of histopathological study was identified as hamartous supernumerary tooth germ. Based on the clinical presentation, radiographic and histopathologic findings, we concluded that the final diagnosis was peripheral odontoma. For three years after surgery, there is no clinical sign of recurrence.
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