• Journal of Broadcast Engineering
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• v.26 no.7
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• pp.868-876
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• 2021

Deploying deep neural network model training performs remarkable performance in the fields of Object detection and Instance segmentation. To train these models, features are first extracted from the input image using a backbone network. The extracted features can be reused by various tasks. Research has been actively conducted to serve various tasks by using these learned features. In this process, standardization discussions about encoding, decoding, and transmission methods are proceeding actively. In this scenario, it is necessary to analyze the response characteristics of features against various distortions that may occur in the data transmission or data compression process. In this paper, experiment was conducted to inject various distortions into the feature in the object recognition task. And analyze the mAP (mean Average Precision) metric between the predicted value output from the neural network and the target value as the intensity of various distortions was increased. Experiments have shown that features are more robust to distortion than images. And this points out that using the feature as transmission means can prevent the loss of information against the various distortions during data transmission and compression process.

• Textile Coloration and Finishing
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• v.12 no.1
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• pp.1-11
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• 2000

This paper surveys the fabric weavability and machine efficiency in the various weaving looms such as Projectile, Rapiers, and Air-jet. Used projectile loom was Sulzer-PU, and FAST-R, THEMA-11E, and Picanol-GTX were used for Rapier looms, as the Air-Jet looms, Picanol PAT and OMNI types were used. Using these looms, 5 harness worsted satin fabrics were woven for surveying the fabric weavability and machine efficiency. Warp yam count of fabric is 1/40Nm, Sirofil, and filling is 1/30 Nm, worsted. End breaks of warp and filling directions for the various types of looms are measured and discussed with the mechanism of each loom. Warp and filling yam tensions are also measured and analysed with open width of shedding motion of each weaving machine. And various warp yam tensions with open width of shedding are measured and analysed according to the warp yam in various heald frame. These results fire also discussed with temples such as bar and ring. Warp yam tensions at the various positions on the fabric with various looms are measured and discussed with fabric mechanical properties such as tensile, bending, shear and surface.

• Journal of Korea Technology Innovation Society
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• v.8 no.3
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• pp.1199-1224
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• 2005

This study analyzes various factors affecting a firm's investments, focusing on both a firm's ownership structure and CEO's incentives. While previous empirical works focus on various financial data in order to test the Schumpeterian Hypotheses, this paper is using various ownership structure data as well as financial data. Empirical results show that the greater a firm's CEO has the company's own stock, the less he spends in R&D investments. The main empirical results of this study is in line with past empirical studies on various markets outside of Korea.

• Journal of Korean Dental Science
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• v.3 no.2
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• pp.50-59
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• 2010

Implant placement is frequently complicated and challenging because of the poor quality and inadequate height of bone. Clinicians should consider various surgical procedures to overcome the problems. We report a case with various surgical procedures used such as inferior alveolar nerve repositioning, sinus bone graft, and autogenous block bone graft using the coronoid process and ramus to overcome severe vertical and horizontal alveolar bone atrophy.

• The Korean Journal of Mycology
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• v.4 no.1
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• pp.53-58
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• 1976

This study was undertaken to investigate the direct effect of three different kinds of steroid to Trichophyton(T.) mentagrophytes growth in vitro. A loopful of T. mentagrophytes was inoculated into Sabouraud's media and Sabouraud's media containing various concentrations of dexamethasone (0.04%-0.00004%) prednisolone (0.25%-0.00025%), triamcinolone acetonide (0.2%-0.0002%), Sabouraud's media containing imidazole nitrate (econasole nitrate) 10 micro gm. per cc. of media, and Sabouraud's media containing econazole nitrate $10{\mu}g$ per cc. of media of various dexamethasone concentrations (0.04%-0.00004%). After inoculation they were left for two weeks at room temparature and the colony diameter were compared between Sabouraud's media and Sabouraud's media containing various concentrations, of three different steroids, Sabouraud's media containing econazole nitrate and Sabouraud's media containing econazole nitrate of various dexamethasone concentrations. For complementary study, hanging slide culture were done between Sabouraud's media and Sabouraud's media containing various dexamethasone concentrations to compare the degree of branching of hyphae and sporulation serially. The study results were as follows: 1. There is no significant difference in growth rate of T. mentcgrophytes between Sabouraud's media and Sabouraud's media containing various concentrations of three different steroids. 2. There is no significant difference in growth rate of T. metagrophytes between Sabouraud's media containing econazole nitrate 10 micro gm per cc. of media and Sabouraud's media containing econazole nitrate 10 micro gm per cc. of media of various dexamethasone concentrations. 3. In hanging slide culture, there is no significant difference in branching of hyphae and sporulation between Sabouraud's media and Sabouraud's media containing various dexamethasone concentrations.

• The Journal of Korean Medical History
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• v.16 no.1
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• pp.3-16
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• 2003

In researches done previously, the characteristics of the Hyangyak medicine in the early period of Chosun shown in "HyangyakBoncho(鄕藥本草)" in Vol. 76-85 of "Hyangyakjipseongbang(鄕藥集成方)" and "Sanghan section(傷寒門)" in Vol. 5-8 of "Hyangyakjipseongbang(鄕藥集成方)" was investigated. "Cough section(咳嗽門)" in "Various Diseases volume" of "Dongeuibogam(東醫寶鑑 雜病篇)" Vol. 5 and "Various Coughs section(諸咳門)" of "Hyangyakjipseongbang(鄕藥集成方)" Vol 24-25 which is a paragraph related to "Sanghan section(傷寒門)" was compared. The variety of the Hyangyak, processing methods and forms of the Hyangyak were shown by comparing each oriental medical botany(本草) used for treating cough(咳嗽) in "Dongeuibogam(東醫寶鑑)". Subsequently, the difference between each structure and medical theory was speculated. The facts revealed in this research is as follows. First, [Various Coughs section(諸咳門)] of "Hyangyakjipseongbang(鄕藥集成方)" uses only the Hyangyak, and no foreign medicines were used for treating cough(咳嗽) in "Dongeuibogam(東醫寶鑑)". Second, in [Various Coughs section(諸咳門)] of "Hyangyakjipseongbang(鄕藥集成方)", medicines related to diet and medicines taken raw were widely used, and various forms of medicine such as extracts, plasters, and gruels were used. Third, like other medical books in earlier periods, [Various Coughs section(諸咳門)] of "Hyangyakjipseongbang(鄕藥集成方)" describes the medical theory with conciseness, and keeps the structure of symptom classification focused on treatment and prescription. Fourth, as [Hyangyakboncho(鄕藥本草)] extensively uses the knowledge of oriental medical botany(本草) from two of Four Masters of GeumWon(金 元); JangWonSo(張元素) and LeeDongWon(李東垣), "Various Coughs section(諸咳門)" of "Hyangyakjipseongbang(鄕藥集成方)" quotes the books of JuDanGae but does not adopt the theory and prescriptions of 'replenishing yin and downbearing fire (滋陰降火)'. To find a more descriptive picture of the Hyangyak medicine for the treatment of 'cough(咳嗽)', a comparatitive study between the books written in the same period -"Euibangyuchui(醫方類聚)" and books compilated in China should be done, and there should be more profound researches done on individual medicines and prescriptions.

• Proceedings of the PSK Conference
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• 2003.04a
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• pp.227.1-227.1
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• 2003

To assess the effect of chitosan complex with metal ion on various pathogenic bacteria, the antibacterial activities were investigated. Arsenic, bismuth, calcium, iodine, iron, mercury, platinum, and silver were used as a metal ion. Staphylococcus aureus. Streptococcus mutans, Helicobacter pylori, Propionibacterium acnes and human saliva were examined. It was demonstrated that metal ions associated chitosan showed aggregation activities on various pathogens.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 2003.09a
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• pp.698-701
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• 2003

In recent years, various digital characters, which are automatic and intelligent, are attempted with the introduction of artificial intelligence or artificial life. Since the style of a character's behavior is usually designed by a developer, the style is very static and simple. So such a simple pattern of the character cannot satisfy various users and easily makes them feel tedious. A game should maintain various and complex styles of a character's behavior, but it is very difficult for a developer to design various and complex behaviors of it. In this paper, we adopt the genetic algorithm to produce various and excellent behavior-styles of a character especially focusing on Robocode which is one of promising simulators for artificial intelligence.

• Fashion & Textile Research Journal
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• v.6 no.2
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• pp.239-244
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• 2004

On the whole the various medium colors were developed by repeat dyeing with different colorants after dyeing with one colorant in case of natural dyeing. In this study, in order to obtain various colors on wool fabrics with Gardenia and Sappan wood colorants, pre-mordanting and combination dyeing were carried out. Gardenia and Sappan wood used as natural colorants for combination dyeing showed good miscibility in dye bath, Metal compounds containing alum, copper and iron were used for pre-mordants. The various medium colors such as yellow-red were obtained according to various metal compounds for pre-mordants and various mixing portion of these natural colorants. The surface reflactance spectra and color characteristics of wool fabrics by mordanting and combination dyeing were investigated.

• Proceedings of the KSME Conference
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• 2007.05a
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• pp.678-682
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• 2007

It is conducted that study on corner crack protection for various thermal environment in a flat panel display. Most of the consumer electronics consist of a plastic and a metal structure. And different properties of materials could cause failure of structural reliability due to the various operating temperatures. Especially for front bezel with thin and slender structure, the effect of temperature is significant, and the design for crack protection is crucial for thermal reliability of displays. In this study, it is prescribed the behavior of the front bezel in flat panel display for various operation temperatures and proposed design parameters to ensure the structural reliability of displays.