• 대한수학회보
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• 제53권3호
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• pp.641-649
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• 2016

A linear functional T on a $Fr{\acute{e}}echet$ algebra (A, (pn)) is called almost multiplicative with respect to the sequence ($p_n$), if there exists ${\varepsilon}{\geq}0$ such that ${\mid}Tab-TaTb{\mid}{\leq}{\varepsilon}p_n(a)p_n(b)$ for all $n{\in}\mathbb{N}$ and for every $a,b{\in}A$. We show that an almost multiplicative linear functional on a $Fr{\acute{e}}echet$ algebra is either multiplicative or it is continuous, and hence every almost multiplicative linear functional on a functionally continuous $Fr{\acute{e}}echet$ algebra is continuous.

• 한국응용과학기술학회지
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• 제30권3호
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• pp.380-386
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• 2013

N,N,N-Trimethyl-10-nitrophenoxy decylammonium bromide (N10TAB) and N,N,N,N-Tetramethyl-bis-[10-nitrophenoxy decyl]-1,6-hexanediammonium dibromide (N10-6-10N), bearing aromatic nitrophenoxy group in the end of their hydrophobic chains have been prepared, and their properties in aqueous solutions have been studied by conductivity and H-NMR spectroscopy. Below the critical micelle concentration N10-6-10N form premicelle with two or three surfactant molecules. Beyond the critical micelle concentration two molecules have strong self-aggregation ability and form micelles of rather small size and with small aggregation numbers. H-NMR at different concentrations give the informations on the environmental changes of the surfactants on their micellization progress.

• International Journal of Contents
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• 제11권4호
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• pp.70-76
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• 2015

The development of technology provides and increases security as well as convenience for humans. The development of new technology directly affects the standard of life thanks to smart home automatic control systems. This paper describes a door control, automatic curtain, home security (CCTV, fire, gas, safe, etc.), home control (energy, light, ventilation, etc.) and web-based smart home automatic controller. It also describes the use of ARM (Advanced RISC Machines) for automatic control of home equipment, a Multi-Axes Servo Controller using FPGA (Field Programmable Gate Array) and PLC (programmable logic controller). Additionally, it describes the development of a HTML editor using web auto control software. The tab loading time (7 seconds) is faster when using ARM-based web browser software instead of Chrome and Firefox is used because the browser has a small memory footprint (300M). This system is realized by web auto controller language which controls and uses PLCs that are easier than existing devices. This smart home automatic control technology can control smart home equipment anywhere and anytime and provides a remote interface through mobile equipment.

• 정보보호학회지
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• 제28권4호
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• pp.18-24
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• 2018

전통적으로 바이오인식기술은 출입국심사, 출입통제 행정, 사회복지, 의료, 금융 등 다방면에서 폭넓게 보급되어 실생활에서 널리 활용되고 있다. 최근 들어, 모바일 지급결제서비스 ATM 인출기 인터넷전문은행 등과 같은 핀테크 분야에서 비대면 인증기술로 바이오인식기술이 각광을 받기 시작했다. 그러나 지문 얼굴 홍채 정맥 등 기존의 신체적 특징을 이용한 바이오인식기술은 가짜지문 등 신체적 특징을 이용한 바이오인식기술의 위변조 위협에 대한 우려가 존재하여 심전도 등 생체신호, 걸음걸이와 같이 살아있는 사람의 행동학적 특징을 이용한 차세대 바이오인식기술에 박차를 가하고 있는 추세이다. 이에 본 논문에서는 바이오인식 표준화를 위한 ITU-T SG17 Q9 국제표준화기구를 소개하고, X.tab 국제표준화 현황에 대하여 집중적으로 살펴보고자 한다.

• 한국환경교육학회지:환경교육
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• 제20권4호
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• pp.117-131
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• 2007

The objectives of this study were to investigate using environment-friendly agricultural products and to analyze consciousness of agricultural safety of consumers. The data were collected from 1,000 consumers by two-staged stratified random sampling. SPSSWIN/ver. 13 program was used for analyzing data with frequency, cross-tab, t-test and ANOVA. The major findings of this study were as follows: 1) Consumers with higher academic career, more income, and white collars showed higher experiences on environment-friendly agricultural products. 2) Consumers who are under thirties, university graduation and upper income revealed high intention to use environment-friendly agricultural products. 3) The study revealed information needs and information acquisition are significantly different among consumers 4) Consumers with higher academic and upper income showed higher agricultural safety concern, 5) The study discovered that consumers who are over sixties and under middle school graduation were higher on agricultural safety effects.

• 펄프종이기술
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• 제31권4호
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• pp.1-7
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• 1999

This study was carried out to simulate the change of various properties of recycled water when zero-discharge system was applied to a KOCC recycling process. contaminants such as chemical oxygen demand, anionic trash, and calcium hardness were gradually increased in the process water as the recycling was repeated . Especially, the increase of anionic trash and COD were closely related to the starch derived from corrugating adhesive in KOCC. Four kinds of water were compared in the preparation of handsheet to evaluate the performance of retention program. Waters used in this work were laboratory tab water, process water from Dong-II mill and the same one treated by UASB process, and closed white water prepared by KRICT. The result revealed that one the major factors fro reducing a retention power was the anioni trash accumulated in the recycled water.

• 약학회지
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• 제33권1호
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• pp.54-63
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• 1989

Examination of the subacute toxicity of captafol showed that. 1) In the captafol administered group, the body weight was significantly decreased but the amounts of AST, ALT, LDH, BUN, TG in serum were remarkably elevated in comparision to those of the control group. 2) In captafol treated animals, the amount of cytochrome P-450 and the activity of NADPH-cytochrome c reductase in liver and in kidney were decreased, but TAB value in serum and in liver and total ATPase activity in liver and in kideny were found to be remakably elevated. 3) When captafol administered with ethanol to the group, the group showed elevated serum levels of AST, ALT and BUN but the amount of cytochrome P-450 and the activity of NADPH-cytochrome c reductase in liver and in kidney were decreased as the group which was treated with captafol only.

• 대한기계학회논문집B
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• 제23권1호
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• pp.69-81
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• 1999

In this research computational methods for the droplet atomization and spray wall impingement are studied for the non-evaporating diesel fuel spray. The TAB(Taylor Analogy Breakup) model and Wave model are compared with experiments in order to describe droplet atomization process. The Watkins model and O'Rourke model are compared to simulate the spray wall impingement. As a result, It is found that the application of the Wave model has a good agreement with the experimental data in the case of high pressure injection. With regard to wall Impingement phenomena, it is found that the Watkins model is appropriate to the high temperature cylinder wall condition, while the O'Rourke model is appropriate to cold starting problem.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 1998년도 공동 심포지엄 및 추계학술발표회
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• pp.201-205
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• 1998

Leakage of hydrocarbon compound from underground storage tank has been a significant issue to the hazard of environmental contaminants. It is therefore necessary to develop the measurement technique of hydrocarbon compound concentration. In this study, the possibility of TDR application to measure concentration of hydrocarbon compound, especially diesel, in a sandy soil was investigated. Experiments were conducted in two different conditions. The first one was to measure the resistances of the soil columns packed according to the various ratios of tab water and diesel content in the total voids. The other was to measure the resistance of the soil under the flow condition where diesel oil was allowed to infiltrate into the KCl-saturated soil column. The experimental results showed that there exists a significant relationship between oil% and TDR-measured resistance. This suggests that TDR can be an effective device to measure the concentration of hydrocarbon compound in a soil.

• 한국전자통신학회논문지
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• 제2권4호
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• pp.209-214
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• 2007

본 논문은 상호 심볼간 간섭을 효율적으로 억압해온 다계층 퍼셉트론 조합을 이용하여 제안된 알고리즘을 통해 탭 가중치 갱신이 보다 효율적으로 이루어질 수 있도록 한다. 시뮬레이션을 통해 평균 자승 에러의 수렴 특성이 우월하다는 것을 연구한다.