• Title/Summary/Keyword: Induction period

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Efficacy of Modified Rush Allergen-Specific Immunotherapy on Canine Atopic Dermatitis

  • Lee, Wang-Hui;Park, Seong-Jun
    • Journal of Veterinary Clinics
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    • v.34 no.4
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    • pp.245-248
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    • 2017
  • Modified rush ASIT protocol has been performed to identify the ideal schedule that allows the dose considered effective to be reached in the shortest possible time with the fewest adverse effects. Ten atopic dogs of this study includes fulfillment of Favrot's criteria. Offending allergens were identified by the use of IDST. During the induction period, the dogs were received a total of 15 injections. Ten injections were administrated every 30 minutes in a day with gradually increasing amounts and concentrations of allergens, and the last 5 injections were administered every 3 days. Disease severity was quantified by using the canine atopic dermatitis extent and severity index (CADESI). During induction period, reduction rate from baseline scores varied between 1% and 67% and the improvement of ${\geq}50%$ was recorded after induction period of therapy for CADESI-03 score in 6 of the 10 dogs. This study of ten dogs with atopic dermatitis provide evidence for the efficacy and safety of modified rush ASIT for clinical improvement.

Modeling and Strategic Startup Scheme for Large-Scaled Induction Motors (대용량 유도기 기동 특성 모델링 및 전략적 기동 방법에 관한 연구)

  • Jung, Won-Wook;Shin, Dong-Yeol;Lee, Hak-Ju;Yoon, Gi-Gab
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.8 no.4
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    • pp.748-757
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    • 2007
  • This paper is intended to solve the technical problem that fails in large-capacity induction motor starting due to serious voltage drop during starting period. One induction motor that is established already can reach in steady-state using reactor starting method but the voltage magnitude of PCC (point of common coupling) has dropped down a little. When the same capacity induction motor is installed additionally in the PCC, where the existing induction motor is operating, voltage drop becomes more serious by starting of additional induction motor. As a result, the additional induction motor fails in starting. Therefore, voltage compensation method is proposed so that all of two induction motors can be started completely. First, modeling technique is described in order to implement starting characteristics of large induction motor. And then, this paper proposes strategic starting scheme by proper voltage compensation that use no-load transformer tap control (NLTC) and step voltage regulator (SVR) for starting of two large induction motors successfully and improving the feeding network voltage profile during the starting period. The induction motor discussed in this paper is the pumped induction motor of 2500kVA capacity that is operating by KOWACO (Korea Water Resources Corporation). Modeling and simulation is conducted using PSCAD/EMTDC software.

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Antioxidative Capacity and Total Phenolic Compounds of Methanol Extract from Zizyphus jujuba (대추 메탄올 추출물의 페놀성 화합물 함량과 항산화 효능)

  • Kim, Hyo-Kyung;Joo, Kwang-Jee
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.34 no.6
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    • pp.750-754
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    • 2005
  • The antioxidative capacity of methanol extracts prepared from jujubes (Zizyphus jujuba) were investigated by measuring total phenolic compounds, electron donating ability and induction period on lard. The extracts of large, medium and small jujubes of $80\%$ methanol extracts (methanol extracts) and soaking in the water before $80\%$ methanol extracts (water-methanol extracts) were Iyophilized. Total phenolic compounds of small, medium and large jujube of methanol extracts were 326.46 mg$\%,223.13\\;mg\%,\;158.06\;mg\%$ and that of water-methanol extracts were $113.23\;mg\%,\;81.45\;mg\%,\;72.78\;mg\%$, respectively. The Electron donating ability for the water-methanol extracts added samples of large (1.5$\~$3.0$\%$), medium and small jujube $(1.0\~3.0\%)$ were superior to the $0.02\%$ BHT added sample. On the induction period, all samples with jujube extracts were exhibited higher Antioxidant Index (AI: Induction period of lard with jujube extracts divided by induction period of lard) than that of the control and the water-methanol extracts were more effective than the methanol extracts on the antioxidative capacity for the lard. This result indicated that two lyophilized extracts of jujubes showed excellent free radical scavenging ability and long induction period on lard.

Changes of Protein and Lipid During Callus Induction and Plant Regeneration from Perilla frutescens (들깨 조직으로부터 callus 유기에 따른 지질 및 단백질 조성의 변화)

  • 김현경;김도훈;정순재;남재성;정대수
    • Journal of Life Science
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    • v.11 no.3
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    • pp.254-258
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    • 2001
  • The biochemical change during regeneration of perilla callus were investigated by comparing total protein and lipid contents, protein band pattern in SDS-PAGE, and fatty acid composition in the calli cultured for various period(0, 1, 3, 5 and 6 weeks) Calli were induced from cotyledon and hypocotyl explants of peplants of perilla on perilla on MS medium containing BA(0.5 mg/L) and NAA(0.5mg/L). The protein contents reached the peak at 3 weeks after induction of calli, and then was decreased. Total lipid contents was decreased as the culture period increased. The band pattern of polypeptides showed that 30KD and 45KD polypeptides and 22KD and 45KD polypetides were major proteins in the cotyledon and hypocotyl explants, respectively. However increase of culture period only 30KD protein was highly accumulated.

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A Numerical Study on Temperature Profiles of Steel Plates Heated by Induction Heater (강재의 유도가열 방법의 수치적 승온 해석)

  • Kim, Hyeong-Jin;Chung, Won-Cheol;Cho, Byoung-Soo
    • Proceedings of the KSME Conference
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    • 2003.04a
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    • pp.1412-1416
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    • 2003
  • Induction Heaters are commonly used in heating steel strip product, because it can rapidly and efficiently heat steel strip/bar. In this study, a inductive heating model is developed and the predictions are compared with measured temperatures. The temperatures are measured from POSCO thin-slab rolling facility (so called Minimill). Induction heater is installed between reduction unit and holding furnace This induction heater raise the temperature of steel bars from $930^{\circ}C$ to about $1100^{\circ}C$ which gives the required temperature for finishing mill process after holding period at holding furnace. Unlike other simple equation models, this model allows us to predict temperature profiles of sections of steel bars.

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Effects of Cold Pretreatment and Medium Composition on Anther Culture Initiation in Strawberry

  • Na, Hae-Young;Kim, Dae-Young;Chun, Chang-Hoo
    • Horticultural Science & Technology
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    • v.29 no.5
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    • pp.488-493
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    • 2011
  • Callus culture initiation of strawberry (Fragaria${\times}$ananassa Duch.) was investigated at different Murashige and Skoog (MS) medium strengths, types and concentrations of plant growth regulators, and incorporating a cold pretreatment period to determine the optimal nutritional and environmental conditions. No high quality callus was induced on MS media without auxin regardless of medium strength. When 6-benzylaminopurine (BA) was combined with indole acetic acid (IAA), naphthalene acetic acid (NAA), and 2,4-dichlorophenoxyacetic acid (2,4-D), high quality callus were highly induced compared to medium supplemented with auxin alone. When $0.5mg{\cdot}L^{-1}$ BA was combined with IAA, NAA, and 2,4-D, high quality callus induction was more effective than the medium supplemented with the other BA concentrations. The best combination of auxin and cytokinin for high quality callus induction was $1.0mg{\cdot}L^{-1}$ NAA and $0.5mg{\cdot}L^{-1}$ BA. Although the differences in callus induction were not significant, high quality callus induction at half strength MS medium was more effective than at full strength medium. When $30g{\cdot}L^{-1}$ sucrose was added to the half strength MS medium, the rate of high quality callus induction increased. The optimum cold pretreatment temperature and period for high quality callus induction were $4^{\circ}C$ and 72 h, respectively. Regeneration rate of high quality callus increased in MS medium supplemented with thidiazuron.

Study on Antioxidative Activity of Plant Extracts in Fish Oil (식물 추출물이 어유의 산화 안정성에 미치는 영향)

  • Jang, Ji-Sun;Hong, Jang-Hwan;Lee, Ki-Teak
    • Food Science and Preservation
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    • v.13 no.6
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    • pp.726-731
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    • 2006
  • Extract from forty four species of natural plants in Korea were obtained. Each extinct (1,000 ppm) was added into fish oil and their antioxidative activities were screened by rancimat, From the results, seven species including Brassica juncea, Solanum tuberosum, Capsella bursa, Ulums davidiana, Broussonetia kazinoki, Oenanthe javanica, and Rhus chinensis were selected due to their relatively prolonged induction periods. When the concentration (100 - 1,000 ppm) of the selected extract was considered, the most prolonged induction period was observed from Solanum tuberosum throughout the studied concentrations, suggesting that its extinct showed the strongest antioxidative activity against fish oil. In addition, peroxide value (POV) and thiobarbituric acid reactive substance (TBARS) value were considered at $60^{\circ}C$ for 5 days. Among the selected extract, extract from Solanum tuberosum showed the lout POV while the extract from Brassica juncea var showed the least TBARS values after 5 days. Also, the free radical scavenging effect against DPPH radical were studied with the selected extract, showing that the extract from Rhus chinensis was found to be the most effective.

Effect of IPTG Induction on Production of ${\beta}$-Galactosidase-PreS2 Fusion Protein in Recombinant Escherichia coli

  • Nam, Soo-Man;Park, Young-Hoon
    • Journal of Microbiology and Biotechnology
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    • v.1 no.4
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    • pp.274-280
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    • 1991
  • Effects of IPTG induction on cell growth and production of ${\beta}$-galactosidase-preS2 fusion protein (${\beta}$gal-preS2) were studied in a defined medium using a recombinant Escherichia coli JM109/pCMHB30. IPTG was added (0.2 mM) to induce the cloned-gene expression in the early-, mid-, and late-log growth phases. The most serious decreases in growth rate and plasmid stability were observed for the induction in the early-log growth phase. The expression level of ${\beta}$gal-preS2 attained by the induction in the mid-log phase was about 0.51 mg fusion protein/mg total cellular protein, which was 2- and 5-fold improvement over the levels obtained with the inductions in the early- and late-log phases. Formation of acidic byproducts including acetate and pyruvate showed different profiles during the fermentation period for each cases of induction; pyruvate was the major byproduct for the induction in the early-log phase while acetate production became more significant for the cases of inductions in the mid- and late-log phases.

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Enhanced Performance of Induction Cookers by the Use of Polymer Composites

  • Nam, Yoon-Jae;Lee, Dong-Ki;Kwon, Jong-Han;Shin, K.H.;Lim, S.H.
    • Journal of Magnetics
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    • v.15 no.3
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    • pp.123-127
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    • 2010
  • The use of a cooling fan in an induction cooker raises a reliability issue due to the attraction of dust causing a malfunction of the cooling fan and also increases the noise level and power consumption of the device. The purpose of this study is to attempt to solve these problems by molding the Cu coil of an induction cooker with polymer composites that have a low electrical conductivity but a high thermal conductivity. Among the several polymer composites tested in this study, an aluminum nitride-based composite showed the best performance. The results show that the new induction cooker with the molded composite can operate for an extended period of time without the use of a cooling fan. A further advantage of this new type of induction cooker is that the temperature of the substance in the cooking pot increases more rapidly, indicating an increased efficiency of the induction cooker.

Effect of Percutaneous Electrical Nerve Stimulation on the Spinal Neuron Excitability in STZ-induced Diabetic Rats. (피하신경전기자극이 STZ-유도 당뇨 쥐의 척수신경원 흥분성에 미치는 효과)

  • Kim, Yang-Ho;Jeong, Jin-Gyu;Kim, Tae-Youl
    • Journal of the Korean Academy of Clinical Electrophysiology
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    • v.2 no.2
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    • pp.13-23
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    • 2004
  • This study aimed at examining the effects of percutaneous electrical nerve stimulation(PENS) applied to different parts of the streptozotocin(STZ) induced diabetic rats on the change of glucose level and spinal neuron excitability. A total of twenty-eight SD rats, divided into four groups, were used as experiment animal. Experiment group I, the normal control group, was composed of normal rats without diabetes induction. Experiment group was composed II of the rats without any treatment after experimental diabetes induction. Experiment group III was composed of the rats with 2 Hz and $200\;{\mu}s$ of PENS to the acupuncture points related with diabetes for 20 minutes after diabetes induction. Experiment group IV was composed of the rats with 2 Hz and $200\;{\mu}s$ of PENS to the parts unrelated with diabetes for 20 minutes after diabetes induction. The results can be summarized as follow: As for glucose level, the group I showed no change within normal range, and the group III showed significant increase, compared with other groups (p<0.05). As for the change of H latency, M and H amplitude, the group III showed significant differences in decrease of latency and amplitude (p<0.05). As for Hmax/Mmax ratio, the normal and other groups showed no significant differences in decrease of amplitude. It can be concluded from the above results that PENS to the acupuncture points of the STZ-induced diabetic rats was effective for spinal neurone excitability, in particular, for those of the group with PENS to the acupuncture points. This study was conducted in the period of acute diabetes induction, and therefore, further study should be conducted in the period of chronic diabetes to research both acute and chronic diabetes.

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