• Title/Summary/Keyword: selective addition

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Illumination simulation for selective application and energy saving of solar cells in single-span glass greenhouse (단동식 유리온실에서 태양전지의 선별적 적용과 에너지 절감에 관한 조도 시뮬레이션)

  • Jung, Hai-Young;Lee, Boong-Joo
    • Journal of IKEEE
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    • v.23 no.4
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    • pp.1448-1456
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    • 2019
  • In this study, when applying LED light sources within a single-span glass greenhouse for growing crops, the illumination simulation was performed on the ceiling and side of the glass greenhouse to determine the selective placement and effective light transmission of Si series solar cells and dye-sensitive solar cells (DSSC) for supplying LED power source. In addition, energy saving effects of glass greenhouses were analyzed for optimum lighting control when both daylight and LED light sources are considered in glass greenhouses.

TREATMENT OUTCOME OF MANDIBULAR CONDYLAR FRACTURE WITH ARTHROCENTESIS AND LAVAGE (하악과두골절시 Arthrocentesis와 Lavage를 이용한 치험에 관한 연구)

  • Yoon, Ok-Byung
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.28 no.4
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    • pp.286-289
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    • 2002
  • In the treatment of mandibular condylar fractures, arthrocentesis, lavage and selective intermaxillary fixation were performed after closed reduction. In this lavage group, the physiotherapy performed for 3-6 months after injury. in control group, continuous intermaxillary fixation was done for 1-3 weeks, and physiotherapy followed in the same method of the lavage group. In the comparative study of the both groups, the following results are shown. 1. Compared to control group, the lavage group had a slightly superior result at range of motion, joint pain and occlusal deviation, from I day after arthrocentesis to 6 months after injury. 2. The significant differences between both groups were seen at range of motion and joint pain in 1 month after injury. 3. At 6 months after injury, the differences between both groups were not significant at range of motion, joint pain and occlusal deviation. From this study, in the mandibular condylar fracture, the arthrosentesis, lavage and selective intermaxillary fixation after closed reduction can improve symptoms such as joint pain and occlusal deviation, also increase range of motion. in this therapeutic way, intracapsular hemarthrosis which can cause TMJ ankylosis or dysfunction can be removed effectively. in addition, patient's discomfort such as swallowing disturbance, speech disturbance and emotional stress can be reduced signuficantly.

Effects of a Multikinase Inhibitor Motesanib (AMG 706) Alone and Combined with the Selective DuP-697 COX-2 Inhibitor on Colorectal Cancer Cells

  • Kaya, Tijen Temiz;Altun, Ahmet;Turgut, Nergiz Hacer;Ataseven, Hilmi;Koyluoglu, Gokhan
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.3
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    • pp.1103-1110
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    • 2016
  • In the present study, we investigated the effects of motesanib (AMG 706), a multikinase inhibitor alone and in combination with DuP-697, an irreversible selective inhibitor of COX-2, on cell proliferation, angiogenesis, and apoptosis induction in a human colorectal cancer cell line (HT29). Real time cell analysis (RTCA, Xcelligence system) was used to determine the effects on colorectal cancer cell proliferation. Apoptosis was assessed with annexin V staining and angiogenesis was determined with chorioallantoic membrane model. We found that motesanib alone exerted antiproliferative, antiangiogenic and apoptotic effects on HT29 colorectal cancer cells. Combination with DUP-697 increased the antiproliferative, antiangiogenic and apoptotic effects. Results of this study indicate that motesanib may be a good choice in treatment of colorectal tumors. In addition, the increased effects of combination of motesanib with DuP-697 raise the possibility of using lower doses of these drugs and therefore avoid/minimize the dose-dependent side effects generally observed.

A Simple Carbazole-based Schiff Base as Fluorescence "off-on" Probe for Highly Selective Recognition of Cu2+ in Aqueous Solution

  • Tang, Lijun;Wu, Di;Hou, Shuhua;Wen, Xin;Dai, Xin
    • Bulletin of the Korean Chemical Society
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    • v.35 no.8
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    • pp.2326-2330
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    • 2014
  • A carbazole-based Schiff base CB2 was synthesized and applied as a highly selective and sensitive fluorescent probe for $Cu^{2+}$ in $H_2O$-DMSO (8/2, v/v, pH = 7.4) solution. CB2 exhibits an excellent selectivity to $Cu^{2+}$ over other examined metal ions with a prominent fluorescence "turn-on" at 475 nm. CB2 and $Cu^{2+}$ forms a 1:2 binding ratio complex with detection limit of $9.5{\mu}M$. In addition, the $Cu^{2+}$ recognition process is hardly interfered by other examined metal ions.

Determination of Mercury Ion in Contaminated Soil by Rhodamine B Hydrazide (형광화학센서를 이용한 용출기반 토양 수은 오염조사)

  • Kim, Kyungtae;Park, Junboum
    • Journal of Soil and Groundwater Environment
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    • v.21 no.3
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    • pp.1-5
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    • 2016
  • Rhodamine B Hydrazide as a novel fluorescent and colorimetric probe exhibiting remarkably selective fluorescence enhancement toward Hg2+ ion over other 16 metal ions is herein introduced. The probe reacts with Hg2+ ion followed by its spirolactam ring-opening to give a remarkable enhancement of absorption maximum at 550 nm as well as an enhanced fluorescence intensity at 580 nm in aqueous media. Upon titration with Hg2+ ion in various concentration of 10~200 uM, we found that the probe shows a marked color change from colorless to pink, enabling naked-eye detection toward mercury ion. In addition, in the presence of Hg2+ ion, the probe gave rise to change from non-florescence to strong orange fluorescence (Off-On) with a good linearity of R2=0.97. This preliminary results demonstrate that the fluorescent chemosensor we herein introduced can open a new strategy for marked selective and sensitive detection of mercury ions in contaminated soil containing various metal ions.

Selective Cytotoxicity of a Novel Platinum(II) Coordination Complex on Human Bladder Cancer Cell Lines and Normal Kidney Cells

  • Jung, Jee-Chang;Chung, Joo-Ho;Chang, Sung-Goo;Rho, Young-Soo
    • The Korean Journal of Physiology and Pharmacology
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    • v.4 no.2
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    • pp.159-167
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    • 2000
  • We have synthesized a novel platinum(II) coordination complex containing cis-1,2-diaminocyclohexane (DACH) as a carrier ligand and 1,2-dichloroethane (DCE) as a leaving group. In addition, nitrate was added to improve the water-solubility. A new series of [Pt(cis-DACH)(DCE)] $2NO_3(PC)$ was evaluated for its cytotoxic activity on T-24 and J-82 human bladder carcinoma cells and normal primary cultured kidney cells. PC has demonstrated high levels of cytotoxicity against T-24 and J-82 cells. The cytotoxicity of PC against rabbit proximal renal tubular cells, human renal cortical cells and human renal cortical tissues, determined using the MTT assaying technique, the $[^3H]-thymidine$ uptake and glucose consumption tests, was found to be quite less than those of cisplatin. Based on these results, this novel platinum(II) coordination complex appears to be better for improving antitumor activities with low nephrotoxicity and is a valuable lead in the development of new clinically available anticancer chemotherapeutic agents.

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Efficient and Selective Construction of Pyrrolo[3,2-d]pyrimidine Derivatives

  • He, Ping;Wu, Jing;Hu, Yang-Gen;Li, Zai-Fang;Hou, Qiu-Fei;Wang, Yan-Ling;Zhao, Kun;Zhang, Erli
    • Bulletin of the Korean Chemical Society
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    • v.35 no.2
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    • pp.617-621
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    • 2014
  • An efficient and selective method for the synthesis of ethyl 2-amino/aryloxy-3-aryl-4-oxo-5-phenyl-4,5-dihydro-3H-pyrrolo[3,2-d]pyrimidine-7-carboxylate derivatives has been developed. The main process involved the reaction of diethyl 1-phenyl-3-((triphenylphosphoranylidene)amino)-1H-pyrrole-2,4-dicarboxylate and aromatic isocyanates, followed by addition of amines/phenols in the presence of catalytic amount of sodium ethoxide or solid potassium carbonate.

Raloxifene, a Selective Estrogen Receptor Modulator, Inhibits Lipopolysaccharide-induced Nitric Oxide Production by Inhibiting the Phosphatidylinositol 3-Kinase/Akt/Nuclear Factor-kappa B Pathway in RAW264.7 Macrophage Cells

  • Lee, Sin-Ae;Park, Seok Hee;Kim, Byung-Chul
    • Molecules and Cells
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    • v.26 no.1
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    • pp.48-52
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    • 2008
  • We here demonstrate an anti-inflammatory action of raloxifene, a selective estrogen receptor modulator, in lipopolysaccharide (LPS)-induced murine macrophage RAW264.7 cells. Treatment with raloxifene at micromolar concentrations suppressed the production of nitric oxide (NO) by down-regulating expression of the inducible nitric oxide synthase (iNOS) gene in LPS-activated cells. The decreased expression of iNOS and subsequent reduction of NO were due to inhibition of nuclear translocation of transcription factor NF-${\kappa}B$. These effects were significantly inhibited by exposure to the phosphatidylinositol 3-kinase (PI 3-kinase) inhibitor, LY294002, or by expression of a dominant negative mutant of PI 3-kinase. In addition, pretreatment with raloxifene reduced LPS-induced Akt phosphorylation as well as NF-${\kappa}B$ DNA binding activity and NF-${\kappa}B$-dependent reporter gene activity. Thus our findings indicate that raloxifene exerts its anti-inflammatory action in LPS-stimulated macrophages by blocking the PI 3-kinase-Akt-NF-${\kappa}B$ signaling cascade, and eventually reduces expression of pro-inflammatory genes such as iNOS.

Classification of Map-matching Techniques and A Development (맵매칭 기술의 분류 및 맵매칭 알고리즘의 개발)

  • Chung, Youn-Shik;Yoon, Hang-Mook;Choi, Kee-Choo
    • Journal of Korean Society for Geospatial Information Science
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    • v.8 no.1 s.15
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    • pp.73-84
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    • 2000
  • Map matching technique is an essential part of the car navigation and other related positioning fields such as dead reckoning and GPS data logging upon the GIS database. This paper is to break down map matching techniques, to categorize them, and to propose a simple technique for GPS based map matching technique. For categorization of techniques, two approaches have been adopted. One is to only use geometric information, and the other is to use both geometric and topological information. Some pros and cons of each method have been described. In addition, a simple map matching technique, set forth in this paper, has been introduced for properly utilizing the advantage of GPS points after the absence of the chronic problem of selective availability, which had been prevailed recently. Some research opportunities and problems of the technique have also been discussed.

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Characteristics by the Behaviour and Habits of the Common Octopus (Octopus minor) (낙지 (Octopus minor)의 습성 및 행동 특성)

  • CHANG Duk Jong;KIM Dae An
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.36 no.6
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    • pp.735-742
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    • 2003
  • In order to develop a logical method for using selective fishing gear, the behaviour and habits of the aquatic animals must be investigated. However, until now, little national research has been carried out to investigate the behaviour and habits of the common octopus (Octopus minor). The purpose of this study henceforth, is to compile necessary behavioral data to develop fishing gear to catch the common octopus. Behaviour and habits of the common octopus were observed while breeding in a water tank from February to May, 2003. The feeding habits of common octopus are more vigorous at night than in the daytime. The common octopus feeds on 1-4 bait crabs per day and consume each crab in 40-50 min. The sensory organs of the common octopus are more influenced by the sense of touch and smell, than by vision. Using live bait is more effective and advantageous than using dead bait, as the common octopus responded more to live bait. The hiding habits of the common octopus were very intensive, as they hid around all the shelters that were provided in this study. They demonstrated territorial behavior and struggled to maintain their sphere of influence. In addition, out of the various colors for shelters and bait supplied, the common octopus preferred light colors.