• Fire Science and Engineering
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• v.26 no.3
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• pp.79-84
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• 2012

In this study thermal characteristics of heat-responsive element considering conduction, convection and rate of change of element using Response Time Index (RTI) applied to sensitivity test of sprinkler head at home and aborad are theoretically investigated. Analytic solution of temperature distributions with radial direction and time is obtained form energy transport equations, non-homogeneous 2th order partial differential equation, applying to constant wall temperature and symmetric condition in order to analyze thermal characteristics of heat-responsive element for circular cylindrical geometry. Base on the results, the analytic method of this study is fundamental data to practical use for sensitivity test of sprinkler head and design of heat-responsive element.

• Journal of The Korean Society of Inherited Metabolic disease
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• v.13 no.2
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• pp.104-110
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• 2013

Purpose: Phenylketonuria (PKU) is the first inherited metabolic disease of which treatment is known. We performed this study to find out clinical symptoms and prognosis of tetrahydrobiopterin (BH4) responsive PKU patients and genetic relation. Methods: Clinical, biochemical, genetic analysis were done retrospectively in 23 patients diagnosed BH4 responsive PKU in Soonchunhyang University Hospital from March 2000 to September 2012. Results: Patients were classified to mild hyperphenylalaninemia and mild phenylketonuria with initial plasma phenylalanine level below 20 mg/dL. After BH4 loading, blood phenylalanine decrease level ranged between 37% and 99%. Initial treatment with low phenylalanine formula or BH4 was started before 2 month after birth except 2 patients. And one of them resulted in developmental delay in language and social activity. The others showed satisfactory progress without developmental delay. In genetic analysis, of 46 allele, R241C allele mutation was identified most commonly (41%). R241C/A259T, R241C/R243Q, R241C/V388M, R241C/T278I was detected in 5 (21.7%), 3 (13%), 2 (8%), 2 (8%) patients, respectively. Conclusion: R241C mutation was detected most frequently in this study group and R243Q mutation which is known to be prevalent in Korean PKU patients was found in 4 patients (8.6%). Early diagnosis and treatment is important in PKU patients.

• 한국태양에너지학회:학술대회논문집
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• 2008.11a
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• pp.257-262
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• 2008

Available daylight in inside offers comfortable view environment, and psychological and physical advantages to people in the room. But, it has a problem of an excessive direct sunlight. This study calculated daylight responsive dimming control slope by Roller Shade system with Mock-up test. With three 1/2 scale Mock-up rooms, we performed a test for calculation of daylight responsive dimming control slope in different shade height of each room through the different height of roller shade systems. This research will be used as a fundamental study for automated roller shade systems.

• Bulletin of the Korean Chemical Society
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• v.28 no.12
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• pp.2200-2202
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• 2007

The local field distribution around gold nanosphere-gold plane junction has been studied using the finitedifference time-domain (FDTD) electrodynamics calculation procedure. We find that both the in-plane and out-of-plane polarized excitation produce enhanced field strong enough to explain the observed SERS activities of the junctions. Comparison with a simple dipole-image dipole model shows that the enhanced field primarily originates from the multipole-image multipole interaction, which indicates that the detailed fine-structures of the nanoparticles also play a significant role in the SERS activities as well.

• 한국HCI학회:학술대회논문집
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• 2007.02a
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• pp.293-297
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• 2007

Human Computer Interaction 기술을 구체화 시키기 위한 Intelligent Responsive Space의 개발에 있어서 음성정보는 여러 가지로 유용하게 활용될 수 있다. 음성신호로부터 얻을 수 있는 다양한 정보 중의 하나가 화자인식을 이용한 화자의 신원식별이다. 이 논문에서는 화자인식 인식이 어려운 환경에서도 음성 신호로부터 추출한 특성벡터들을 선택적으로 사용함으로써 화자인식 성능을 높일 수 있는 새로운 방법을 제안하려 한다. 화자를 인식하는데 있어서 인식오류를 발생시킬 가능성이 높은 특성벡터들을 인식을 위한 판단의 대상에서 배제시킴으로써 성능을 향상시킬 수 있다. 실험결과에 의하면 0.25초에서2초 길이의 짧은 음성만으로도 기존의 방법에 비해 20에서 51%의 상대적 성능 향상을 보였다. 새롭게 제안된 방법을 적용하면 기존의 방법들에 비해 세밀하면서도 정확하게 연속적으로 화자들을 인식할 수 있게 된다.

• Journal of the Korean Chemical Society
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• v.16 no.3
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• pp.149-156
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• 1972

The responsive characteristics of hydrogen-responsive glass electrode in various buffer solutions of methanol, N,N-dimethylformamide and acetonitrile were examined. The potentials were attained more rapidly with an electrode stored in the same solvent medium than that stored in water before use. However, the time to be required for a stable potential increased with the basicity of buffer solution, and it was not provide a constant potential in the strong basic solution of these solvent. Even in acidic solution, the potential was varied according to the past usage of the electrode.

• Journal of fish pathology
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• v.15 no.2
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• pp.83-92
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• 2002

EST analysis was performed to identify stress-responsive and immune-related genes from mud loach (Misgurnus mizolepis), cDNA libraries were constructed with liver, intestine and kidney tissues and randomly chosen clones (216 for liver, 198 for intestine and 224 for kidney) were subjected to automated sequence analysis. Of 638 clones sequenced in totlal, approximalely 25% of ESTs was novel sequences (no match to GenBank) or sequences with high homology to hypothrtical/unknown genes. Several potential stress-responsive biomarker and/or immure-related genes were identified in all the tissues examined. It included lectin, MHC class I/II proteins, proteinase inhibitors, superoxide dismulase, catalase, glutathionc-S. transferase, heat-shock protein, warm temperature acclimation protein, complements, methylrransferasc, zinc finger proteins, macrophage maturation associated protein, and others. This information will offer new possibilities as fundamental baseline data for the molecular genetics and breeding of this species with an emphasis on the development of stress. (and disease)-resistsnt fish.

• Proceedings of the Korean Vacuum Society Conference
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• 2010.08a
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• pp.261-261
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• 2010

Photonic band gap (PBG) materials have been of great interest due to their potential applications in science and technology. Their applications can be further extended when PBG becomes tunable against various chemical and electrical stimuli. In recent, it was found that tunable photonic band gap materials can be achieved by incorporating stimuli-responsive smart gels into PBG materials. For example, the characteristic volume phase transition of gels in response to the various external stimuli including temperature, pH, ionic strength, solvent compositions and electric field were recently combined with the unique optical properties of photonic crystals to form unprecedented highly responsive optical components. Since these responsive photonic crystals are capable of reversibly converting chemical or electrical energy into characteristic optical signals, they have been considered as a good platform for label-free chemical or biological detection, actuators or optical switches as well as a model system for investigating gel swelling behavior. Herein, we report block copolymer photonic gels self-assembled from polystyrene-b-poly (2-vinyl pyridine) (PS-b-P2VP) block copolymers. In this talk, we are going to demonstrate that selective swelling of lamellar structure can be effectively utilized for fabricating PBG materials with extremely large tunability. Optical properties and their applications will be discussed.

• Journal of Applied Biological Chemistry
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• v.42 no.2
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• pp.62-65
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• 1999

Iron regulatory proteins (IRPs) 1 and 2 bind with equally high affinity to specific RNA stem-loop sequences known as iron-responsive elements (IRE) which mediate the post-transcriptional regulation of many genes of iron metabolism. To study putative IRE-like sequences in RNA transcripts using the IRP-IRE interaction, Eight known genes from database were selected and the RNA binding activity of IRE-like sequences were compared to IRP-2. Among them, the IRE-like sequence in 3'-untranslational region (UTR) of divalent ration transporter-1 (DCT-1) shows a significant RNA binding affinity. This finding predicts that IRE consensus sequence present within 3'-UTR of DCT-1 might confer the regulation by IRP-2.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2015.10a
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• pp.1093-1094
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• 2015

Due to the use of the responsive web, representation of the web in a variety of devices is to be implemented in a more unified look. In this paper, we suggest how to implement fluid layout. We explain how to configure the fluid layout with the latest technology, flexible box and confirmed its advantages and disadvantages. In addition, we propose ways to solve the problem occurred by applying the flexible box.