• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.16 no.5
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• pp.83-89
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• 2016

In this paper, we apply the complementation principle of five prime substances to reduce the phase interference. The transmitter and receiver match the concepts of co-operative and conflict to the direct and indirect signals. The result shows we investigate the proposed network topology such as 5 prime substances (5 user networks). The key observation is that optimal symmetric degree of freedom (DoF) can be achieved for 5 user network with different channel coherence times by adaptively selecting the interference alignment scheme via controlling the alignment feasibility of the transmitted signals. Theoretical results demonstrate the effectiveness of the proposed 5 user networks are well matched to the wireless mobile channel environment to achieve the symmetric DoF for different channel coherence times which ensures that the proposed networks are applicable for dense wireless network applications. Modulo 3 functionality in 5 user network topology makes it easier for the transmitter cooperation to achieve the DoF of 2/3 with the help of the interference alignment schemes.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.39 no.1
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• pp.116-122
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• 2016

Recently, the production cycle in manufacturing process has been getting shorter and different types of product have been produced in the same process line. In this case, the control chart using coefficient of variation would be applicable to the process. The theory that random variables are located in the three times distance of the deviation from mean value is applicable to the control chart that monitor the process in the manufacturing line, when the data of process are changed by the type of normal distribution. It is possible to apply to the control chart of coefficient of variation too. ${\bar{x}}$, s estimates that taken in the coefficient of variation have just used all of the data, but the upper control limit, center line and lower control limit have been settled by the effect of abnormal values, so this control chart could be in trouble of detection ability of the assignable value. The purpose of this study was to present the robust control chart than coefficient of variation control chart in the normal process. To perform this research, the location parameter, ${\bar{x_{\alpha}}}$, $s_{\alpha}$ were used. The robust control chart was named Tim-CV control chart. The result of simulation were summarized as follows; First, P values, the probability to get away from control limit, in Trim-CV control chart were larger than CV control chart in the normal process. Second, ARL values, average run length, in Trim-CV control chart were smaller than CV control chart in the normal process. Particularly, the difference of performance of two control charts was so sure when the change of the process was getting to bigger. Therefore, the Trim-CV control chart proposed in this paper would be more efficient tool than CV control chart in small quantity batch production.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.29 no.5
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• pp.637-642
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• 1996

We isolated a marine bacterium, Pseudomonas sp,, which could produce the enzyme of alginate lyase, and cloned the alginate lyase gene in Escherichia coli. The cloned DNA was overexpressed with approximately $50\%$ amount of total proteins. In addition, the expressed proteins were not secreted into the medium, and most of them existed in the cytoplasm by the soluble form, but not observed any inclusion body by TIM. For the optimum enzyme activity, temperature was $20^{\circ}C$, pH was 7.0, and Km and Vmax values of the enzyme were $0.4\%$ and 625 units/mg, respectively.

• Journal of Advanced Navigation Technology
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• v.14 no.5
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• pp.632-639
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• 2010

Ground Transportation is one of the most required field that users need positioning information Especially, more precise position can make smart traffic management possible and bring convenience to users. By advanced wireless network, cars can receive the GPS information of reference station in any tim e and any where. Thus land vehicles are possible to process precise positioning. In general, for precise positioning code and phase measurements are used. But receivers provide not only code and phase measurements but also doppler measurements and Doppler is direct measurement of velocity. In this paper, because velocity is very important information required in Ground Transportation, precise positioning for Ground Transportation is studied. For precise positioning RTK(Real-Time Kinematic) was used and double differenced doppler measurements were added, As a Result, positioning error by multipath and cycle slip was soften. However there still remained Positioning error. Thus smoothing technique using doppler measurement in position domain is used for softening positioning error.

• The Research Journal of the Costume Culture
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• v.22 no.3
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• pp.450-467
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• 2014

Modern society attaches great important to state of the technology, but, unconscious desire and subconscious are also discussed in an important value. In the social background of such madness is acting as an artistic inspirational to the many people. At such a time, fashion photographs also being used medium which speak for people's desire. Editorial fashion photographs with unusual stories or including experimental visual elements unlike fashion advertising have increasing. The subject of this study is the formative characteristics in recognition of madness from ancient times until now and find out new meaning of the unusual and informal form of editorial fashion photographs showed in Vogue Italia since 2000. The analysis data of this study, we used 36 photographs of editorial fashion photographs taken by Steven Meisel, Tim Walker and Miles Aldriege. The final process of analysis made in with agreement of 10 major people. We used photograph's basic visual elements as analysis to avoid arbitrary interpretations. The content of this study is drawing in editorial fashion photographs from the viewpoint of Michael Foucault's Madness theory, Deleuze and Felix Guattari's Madness as the aspects of desire. The madness images in the editorial fashion photographs were showed as Decadence, Blindness, Violence and Grotesque based on the analysis results from above. The formative characteristics of editorial fashion photographs enabled the awareness on the value and importance of madness in modern society. These editorial fashion photographs can be the source of our wider perspectives for changing recognition of madness.

• Journal of Korea Foundry Society
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• v.2 no.3
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• pp.2-15
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• 1982

In this study, the influenced of graphite shape on the boriding of cast iron and boride structure was investigated. Gray cast iron, ferritic and pearlitic ductile cast iron were borided at 750,850,900 and $950^{\circ}C$ for 1,3 and 5 hours by powder pack method with the mixture of $B_4C_9\;Na_2B_4O_7$, $KBF_4$ and Shc. The boride layer was consisted of FeB(little), $Fe_2B$ (main) and graphite. Some possibility of the existence of unknown Fe-B-C compound in the boride layer was suggested. And precipitates in the diffusion zone was $Fe_3(B,C)$. The concentration of Si and precipitation of $Fe_3(B,C)$ in the ${\alpha}$ layer raised the hardness of this Zone. The depth and hardness of boride layer increased with the increase of treating temperature and tim. But high temperature (over $950^{\circ}C)$ caused pore at graphite position and long treating time (5hrs) sometimes caused formation of graphite layer beneath the boride layer. So, for the practical application of borided cast iron, treating in short time and at low temperature was recommended. And for ductile cast iron, ferritizing or pearlitizing heat treatment was seemmed to be possible at the same time with boriding. The graphite in the boride layer was deeply concerned with the qualitx and characteristics of the boride layer. And it greatly influenced on the shape of the boride phase, structure of the boride layer. Generally speaking, the existance of graphite restrained the growth of the boride phase. But the boundary between the gsaphite and the matrix acted as the shortcut of boron diffusion. So, for gray cast iron, the graphite layed length-wise led the formation of boride layer.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.23 no.6
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• pp.539-547
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• 2020

Purpose: Pediatric acute liver failure (PALF) is a serious condition; however, data on PALF in developing countries are sparse, particularly concerning molecular diagnosis and liver transplantation (LT). This study aimed to determine the causes, outcomes, and prognostic factors of PALF. Methods: We retrospectively reviewed the medical records of children (age <15 years) with PALF diagnosed using the American Association for the Study of Liver Diseases criteria at our center from 2011 to 2016. The collected data included laboratory results, complications, outcomes, and potential factors associated with death and LT. Results: We included a total of 27 patients, with a median age of 2 years (interquartile range, 3 months to 4 years). Viral infection was the most common etiology (n=8, 30%), predominantly dengue infection (n=4). A total of 16 patients (59%) died and 11 patients survived (3 patients with LT). The prognostic factors associated with death or LT requirement were grade IV hepatic encephalopathy (p<0.01), hypotension (p=0.02), gastrointestinal bleeding (p=0.03), increased intracranial pressure (p=0.04), and higher peak serum lactate level (p=0.01). Peak serum lactate ≥6 mmoL/L had a sensitivity of 79% and a specificity of 88% for predicting mortality or the necessity of LT. Conclusion: Viral infection was the most common cause of PALF. The mortality rate remained high, and a considerable number of patients required LT. In addition to several clinical factors, peak serum lactate could be a potential marker for predicting poor outcomes in PALF.

• Journal of the korean veterinary medical association
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• v.34 no.10
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• pp.715-725
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• 1998

우리 사람들은 자신의 생각을 다른 사람들에게 전하고자 할 때 언어를 주로 이용하고 보조적인 수단으로 몸짓을 한다. 사용하는 언어가 달라 소통이 어려울 때는 부득이 몸짓으로만 서로 의견을 나누게 되는데 손짓과 발짓은 물론 얼굴의 표정까지 동원된다. 물론 언어를 이용한 의사전달 만큼 정확하지도 못하고 시간적으로도 효율적이지 못하지만 그런 대로 급한 문제는 해결할 수 있는 경우가 않다. 동물들이 서로의 의사소통을 위하여 어떤 형태의 언어 및 언어에 가까운 음성기호를 이용할 능력이 있는지에 대하여는 학자들 간에도 논란이 계속되고 있으나 분명한 것은 어떤 방법으로든 동물들도 제나름대로 자신의 의사를 전달하고 또한 상대편이 전하고자 하는 뜻을 파악하여 이에 적절히 대처를 한다는 점이다. 이런 점에서 동물들을 대상으로 하는 학문인 수의분야에서는 우리 인간들에게 익숙한 언어와 행동이 아닌 동물들의 독특한 의사전달 방법을 정확히 이해하는 것이 무엇보다도 중요하다는 점을 인식하는 것이 필요하다 동물의 행동 하나 하나는 인간의 행동과 마찬가지로 나름대로의 의미를 지니고 있다. 이러한 동물의 행동을 인간의 눈 높이에서가 아닌 동물이 표현하고자 하는 행동 언어적인 측면에서의 이해가 필요한 것이다. 야생동물의 행동양식에 대한 연구는 생래학적으로 비교적 많이 이루어진 편이나 가축화된 동물들에 대하여는 체계적이고 비교학적인 연구가 아직도 부족한 실정이다. 특히 우리 나라에서는 이 분야에 대한 연구는 물론 외국의 연구내용에 대하여도 적극적인 소개가 이루어지지 못하였고 아울러 여러 분야에 실제 적용은 더욱 어려웠다. 동물의 건강을 책임지고 있는 우리 수의 분야는 물론, 가축을 사양하는 축산학 분야 및 모든 동물관련 분야에서 효율적이고 바람직한 동물과 인간의 관계를 구축하기 위하여는 무엇보다도 동물의 행동을 인간의 언어사용 측면에서 이해하려는 노력이 필요하다 하겠다. 이러한 일차적인 필요성에 조금이나마 도움이 되고자 하는 바람으로 외국문헌을 중심으로 인간의 생활과 밀접한 관계를 지닌 여러 동물들의 행동과 그 의미를 소개하고자 한다. 아울러, 소개되는 내용은 Domestic Animal Behavior for Veterinarians and Animal Scientists (제3판, Katherine A. Houpt 지음), Animal Behavior (Tim Halliday 지음), Canine and Feline Behavior Problems(Stefanie Schwartz 지음), Journal of Conpendium on Continuing Education for the Practicing Veterinarian,그리고The Merck Veterinary Manual의 Behavior와 같은 참고문헌에 크게 의존하여 기술된 것임을 밝힌다.

• Journal of The Korean Society of Agricultural Engineers
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• v.56 no.6
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• pp.93-102
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• 2014

Generally data loading is a laborous job to develop models. Meteorological data is basic input data for hydrological models, it is provided through websites of Korea Meteorological Administration (KMA). The website of KMA provides daily meteorological observation data with tabular format classified by years, items, stations. It is cumbersome to manipulate tabular format for model inputs such as time series and multi-item or multi-station data. The provider oriented services which broadcast restricted formed information have caused inconvenient processes. Tim O'Reilly introduces "Web 2.0" which focuses on providing a service based on data. The top ranked IT companies such as google, yahoo, daum, and naver provide customer oriented services with Open API (Application Programming Interface). A RESTful web service, typical implementation for Open API, consists URI request and HTTP response which are simple and light weight protocol than SOAP (Simple Object Access Protocol). The aim of this study is to develop a web-based service that helps loading data for human use instead of machine use. In this study, the developed RESTful web service provides Open API for manipulating meteorological data. The proposed Open API can easily access from spreadsheet programs, web browsers, and various programming environments.

• Horticultural Science & Technology
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• v.18 no.6
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• pp.787-791
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• 2000

Lettuce seedlings used in this investigation of planting distance and labor-saving efficiency were first grown in 100-hole paper trays for 30 days. Seedling height for transplanting ranged from 3 cm to 6 cm and plants had 3 to 5 leaves. The beds prepared for transplanting were of the arched type and were 35-40 cm in width, 15-20 cm in bed height, and between-bed furrow width was 20 30 cm. Typical seedling planting depth with the transplanter was 4-5 cm, although depth was quite variable because of the irregularities of the ground. Total transplanting time with the transplanter varied from 2.6 to 2.7 hours per 10a, while it took 38.1 hours per 10a with conventional planting. It was critical that the condition of both the seedlings and the bed be adjusted to the transplanter before planting. Considering yield and inter-plant distance, optimal transplanter performance resulted with $60{\times}20cm$ or $60{\times}25cm$spacing, and the labor-saving efficiency using the transplanter was improved by over 93% of that of conventional planting by hand.