• 한국전자통신학회논문지
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• 제9권9호
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• pp.1011-1018
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• 2014

웹 사이트를 통한 정보제공이 활성화 되면서 웹 애플리케이션의 취약점을 이용한 웹 해킹 시도가 증가하고 있다. 웹 애플리케이션의 보안을 강화하려면 먼저 웹 애플리케이션의 취약점을 찾아 제거할 필요가 있다. 본 논문은 웹 애플리케이션에 대한 기존의 취약점 해결 방법을 분석하고 보다 발전된 취약점 해결방안을 제시하고자 한다. 웹 애플리케이션 취약점 분석을 통해 현존하는 웹 취약점을 제거한 웹 보안 상태의 안정성을 점검하고 기존 방법의 적합성을 평가하였다. 또한 기존 취약점 해결방안의 미비점을 보완한 방법으로 웹 프락시(Proxy) 시스템을 통한 취약점 분석 툴을 구현하고 최적화 방안을 제시하였다.

• 기본간호학회지
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• 제24권1호
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• pp.18-29
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• 2017

Purpose: The purpose of this study was to develop an algorithm for nursing care after percutaneous coronary intervention in order to improve patients' safety and prevent complications, because percutaneous coronary intervention is becoming a common treatment for coronary artery diseases. Methods: By reviewing related literatures and interviewing nurses, items and paths that were to be used in the algorithm for nursing care after percutaneous coronary intervention were drawn up and a draft algorithm was developed. The final algorithm was determined based on the results of the evaluation performed after clinical application. Results: According to the outcome after allowing nurses to apply the revised algorithm with 11 patients, suitability on items composing the algorithm were highly rated whereas promptness was lowly rated. Although the patients (n=11) to whom the algorithm was applied complained of less back pain (p=.001) and discomfort (p=.026) compared to the patients (n=17) to whom the algorithm was not applied, no significant difference in bleeding complication was found. Conclusion: The findings in the study support the clinical utilization of the algorithm for nursing care after percutaneous coronary intervention as the use of this algorithm reduced back pain and discomfort without increasing bleeding complications at the femoral puncture site.

• 대한치과의사협회지
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• 제49권9호
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• pp.535-548
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• 2011

The anterolateral thigh flap(ALT flap) was originally described in 1984 as a septocutaneous nap based on the descending branch of the lateral circumflex artery. This nap has some significant advantages for reconstruction of the head and neck. It can be raised as a subcutaneous flap, a fasciocutaneous nap, or a myocutaneous nap and can resurface large defects in the head and neck. In addition, it has a large and long vascular pedicle, and because of the distance of the donor site from the head and neck, it can easily be harvested with a two-team approach. However, the number and locations of cutaneous perforators vary individually, and thus, it is not widely used because nap elevation is often complicated and time-consuming owing to unexpected anatomical variations. The purposes of this study are to clarify the vascular anatomy and to assess the suitability of anterolateral thigh nap for oral cavity reconstruction in Koreans. In addition, we used anterolateral thigh free nap for oral cavity reconstruction in 20 oral cancer patients from 2006 to 2011. Through our clinical experience, we discuss a series of practical "pearls and pitfalls". Our experience has not only given us new flap choice using anterolateral thigh nap in oral cavity reconstruction, but also given us a new possibility on the applicability of chimeric naps.

• KIEAE Journal
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• 제13권2호
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• pp.131-139
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• 2013

The aim of this dissertation is establishing internal indicator list for achieving policy goal of Carbon Neutrality Green City. First of all, it started to construct the basic system of planning indicator based on through comprehension of current studies such as advanced researches, government guidelines and green building certifications. And then it was set up final indicator list through inspecting FGI (Focus Group Interview), Verification of suitability, and Analysis of importance). As a result of this research, the planning indicator divided three steps and there were classified four fields in the top-level; Green Land and Ecology, Green Energy, Green Resource and Transportation, Green Living and Institution. According to the data, it deducted four items (ratio of green land, site plan, heat island and management of climate, base of nature ecology) and twelve index in the field of green land and ecology, three item(energy conservation and self-supporting, energy efficiency, new regeneration energy) and twelve index in the field of green energy and regeneration, five items(water resources utilize and circulation, other resource reduction and circulation, public transportation, green transportation plan) and fifteen index. Totally, Planning Indicators of forty nine were deducted. Therefore, there was the result of importance analysis that the indicators of plan and maintain management as the side of space for carbon neutrality were more appreciated than carbon reduction of individual building.

• 한국의류학회지
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• 제32권8호
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• pp.1169-1178
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• 2008

In this study, a questionnaire was compiled by conducting interviews and preliminary surveys, and then handed out to a total of 270 welders working in shipyards to investigate their opinions on welding clothes. By which investigation, it was intended to understand their dissatisfactions and issues with conventional welding clothes and then propose of such welding clothes as may offer better fit and suitability. A total of twenty welding suits were collected to find the locations and degrees of wear and tear. Due to too large differences in the locations and degrees of wear and tear among the clothes, the evaluation was focused on ten suits out of the twenty suits collected. The researcher’s subjective judgment was used to select the nineteen most severely damaged parts, which were then photographed in a uniform distance and evaluated by a group of experts in terms of the degree of damage in order to locate most severely damaged parts and select adequate materials for those parts in designing an experimental suit. Based on two above evaluations, the experimental welding suit was produced in consideration of the design, materials and patterns. A lab evaluation and a site evaluation were conducted to compare the experimental suit and other conventional suits, a lab evaluation and a field evaluation were performed.

• 한국산업융합학회 논문집
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• 제16권3호
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• pp.95-102
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• 2013

It is indispensable to modern society metal processing since the industrialized rapidly, but it is a metalworking cutting fluid immediately. In addition, this means selecting a emulsion on the basis of quality criteria processing method, the material of the material, cutting depth, cutting speed, Djourou fence Liang, and surface roughness, cutting oil, the shape of the device based on the emulsion, I will be the structure of the tank, filtration equipment also changes. In particular, acting bacteria is now breeding in response to the passage of time due to metal ion degradation due to heat generated hydraulic fluid leakage, humidity tung, during processing, seep from processing material at the time of processing the water-soluble cutting oil for generating the malodor by dropping significantly the performance of the cutting oil to corruption from, sometimes by introducing various additives to suppress spoilage in advance. In this study, we expect the effect of the cost reduction in the extension of fluid replacement cycle through the application of the management apparatus and deep understanding in the management of cutting fluid, the working environment through the understanding and interest of workers in the production site more than anything I try to become useful for the improvement.

• Design & Manufacturing
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• 제14권3호
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• pp.37-43
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• 2020

Progressive drawing processing is one of the manufacturing processes used to mass-produce a variety of products on the industrial site. In this study, the goal is to achieve a uniform product thickness of at least 1.3mm by reducing the wall thickness of the coupler parts used in automotive air conditioning systems to within 15% using A5052-H32 materials. The progressive die was designed using Blank's law of volume invariance. Due to the characteristics of the drawing process, the material thickness in the punch R part decreases and the thickness in the die R part increases. When designing the progressive die of the coupler part, an ironing method, a push back method, and a stand-alone die pad method were applied to each process to design a mold in consideration of the drawing rate and to artificially adjust the thickness change. The suitability of the method used in die design was investigated by measuring the thickness change of forming parts for each process. In the final part, it was confirmed that the thickness measurement values of the five regions of a radial line were implemented as 1.34-1.36 mm.

• KIEAE Journal
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• 제9권6호
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• pp.27-36
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• 2009

Lately construction companies are differentiating the outdoor spaces of apartment complexes to satisfy the needs of residents by providing underground parking area and variety of outdoor community spaces. Building walking networks through residential unit area, the major passage area and the entrance area of the complexes is very important factor to increase the use of the outdoor environment in the complexes. The purpose of this study is to evaluate the characteristics and the elements for the planning of exterior pedestrian spaces carefully through the analysis of current large-scale apartment complexes. In this study, the utilization of space, the connectivity to other spaces and the application of Universal design were evaluated through site visits in 5 large-scale apartment complexes. As a result, the utilization of space is well applied in the most of complexes especially in residential unit area. The connectivity to other spaces has low application compared to the others. Universal design is also well applied except sub criteria for the blind in most of complexes. This study will be able to help in providing better exterior pedestrian environment for residents in apartment complexes.

• ALGAE
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• 제33권4호
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• pp.359-366
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• 2018

Mesocosm experiments conducted for ecological purposes have become increasingly popular because they can provide a holistic understanding of the biological complexities associated with natural systems. This paper describes a new outdoor mesocosm designed for $CO_2$ perturbation experiments of benthos. Manipulated the carbonate chemistry in a continuous flow-through system can be parallelized with diurnal changes, while irradiance, temperature, and nutrients can vary according to the local environment. A target hydrogen ion activity (pH) of seawater was sufficiently stabilized and maintained within 4 h after dilution, which was initiated by the ratio of $CO_2$-saturated seawater to ambient seawater. Specifically, pH and $CO_2$ partial pressure ($pCO_2$) levels gradually varied from 8.05-7.28 and $375-2,691{\mu}atm$, respectively, over a range of dilution ratios. This mesocosm can successfully manipulate the pH and $pCO_2$ of seawater, and it demonstrates suitability for ocean acidification experiments on benthic communities.

• 대한원격탐사학회지
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• 제35권1호
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• pp.1-13
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• 2019

The advent of a fourth industrial revolution, built on advances in digital technology, has coincided with studies using various unmanned aerial vehicles (UAVs) being performed worldwide. However, the accuracy of different sensors and their suitability for particular research studies are factors that need to be carefully evaluated. In this study, we evaluated UAV photogrammetry using smart technology. To assess the performance of digital photogrammetry, the accuracy of common procedures for generating orthomosaic images and digital surface models (DSMs) using terrestrial laser scanning (TLS) techniques was measured. Two different type of non-surveying camera(Smartphone camera, fisheye camera) were attached to UAV platform. For fisheye camera, lens distortion was corrected by considering characteristics of lens. Accuracy of orthoimage and DSM generated were comparatively analyzed using aerial and TLS data. Accuracy comparison analysis proceeded as follows. First, we used Ortho mosaic image to compare the check point with a certain area. In addition, vertical errors of camera DSM were compared and analyzed based on TLS. In this study, we propose and evaluate the feasibility of UAV photogrammetry which can acquire 3 - D spatial information at low cost in a construction site.