• Title/Summary/Keyword: P·I Control

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EFFECT OF FEED RESOURCE FROM FOOD WASTE ON GROWTH AND FEED CONVERSION OF RAT (남은 음식물을 이용한 사료자원이 흰쥐의 성장과 사료효율에 미치는 효과)

  • Chung, K.H.;Jang, K.H.;Park, Y.J.;Hong, Y.S.;Shin, H.T.
    • Journal of the Korea Organic Resources Recycling Association
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    • v.7 no.2
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    • pp.65-71
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    • 1999
  • This study was conducted to evaluate the feasibility of food waste as a feed resources by fermentation and fermented food waste as a substitute of rat feed on the performance with measuring the liveweight gain, feed consumption, feed conversion and digestibility Sixty-two grams Sprague-Dawley line 36 rats were allocated three treatments 12 rats of each(3replication ${\times}$ 4 rats). The substitution level of fermented food waste to commercial broiler feed were control, 0: 100: treatment I, 10: 90: treatment II, 20:80. The chemical composition of fermented food waste was appeared to follows : dry matter, 88.47% : crude ash. 12.95: crude protein, 20.82%; crude fiber, 13.62; ether extract, 9.15%. The body weight of treatment I and II at 1 weeks was significantly lower than those of control(p<.05) and weekly weight gain of control at 0-1 weeks was significantly higher than those of treatment I and II(p<.05). Those were higher in treatment I than those of rest groups at 1-2 weeks(p<.05). Total weight gain of treatment II was significantly lower than those of control and treatment I(p<.05) Total feed consumption of treatment II was significantly higher than those of control (p<.05) and weekly feed consumption of control and treatment II at 3-4 weeks was significantly higher than those of treatment II(p<.05). but those were higher in treatment I and II than those of control at 2-3 weeks(p<.05). Commutative feed conversion of treatment II was significantly higher than those of control(p<.05) and weekly feed conversion of treatment II and III at 0-1 weeks was significantly higher than those of control(p<.05) Dry matter digestibility of control and treatment I was significantly higher than those of treatment II(p<.05) and organic matter digestibility was higher in control than those of treatment II(p<.05).

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The speed control of the Single-Phase induction motor using P-I controller (비례 - 적분 제어기를 이용한 단상 유도 전동기의 속도 제어)

  • Sang, Doo-Whan;Cheong, Dal-Ho;Kim, Jung-Chul;Oh, Min-Jin
    • Proceedings of the KIEE Conference
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    • 1994.07a
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    • pp.603-605
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    • 1994
  • The Single-Phase induction motor is widely used in home appliances, especially refrigerator, air conditioner and washing machine. Recently many home appliances that use the motor require the speed control to get the various and convenient functions for the customers. Generally it is so hard to control the speed of the Single-Phase induction motor and to get the wide range of the speed variation. In this raper, the speed controller using P-I is designed for the Single-Phase induct ion Motor. The experimental results of the phase controller using P-I show the wide speed control of the Single-Phase induction motor and rebuff control to load change.

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Effect of Phytolacca americana Extracts on the Activities of AsPOX and GuPOX during Germination Process of Cassia mimosoides var. nomame

  • Lee, Ho-Joon;Kim, Yong-Ok
    • The Korean Journal of Ecology
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    • v.23 no.2
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    • pp.187-192
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    • 2000
  • After Cassia mimosoides var. nomame was treated with Phytolacca americana extracts during the germination process, its effect on the activities of AsPOX and GuPOX were examined. As the concentration of P. americana extract increased. the activity of AsPOX decreased while that of GuPOX increased. During the germination process, the activity of AsPOX was lower than the control, while the activity of GuPOX was over 2 times higher than the control. Activity of total peroxidase by IEF was extremely high at pI 6.4 and pI 6.6 when treatment was made with a 30% concentration of P. americana extract. The treatment with phenolic compounds, caffeic acid and benzoic acid did not show much difference from the control although a slight increase was observed at pI 6.6. Activity of GuPOX in C. mimosoides was over 4 times higher in roots than in shoots. Namely, because GuPOX activity of C. mimosoides was increased by extracts of P. americana, defense enzyme, GuPOX. was generated against external stress, and we could certified the activity increase at pI 6.4, especially in root.

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The Effects of Bee Venom and Melittin on NO, iNOS and MAP Kinase Family in RAW 264.7Cellscells (봉양침액(蜂藥鍼液)과 melittin이 RAW 264.7세포(細胞)의 NO, iNOS 및 MAPK에 미치는 영향(影響))

  • Kang, Jun;Song, Ho-sueb
    • Journal of Acupuncture Research
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    • v.21 no.3
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    • pp.107-119
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    • 2004
  • Objective : The purpose of this study was to investigate the effect of Bee Venom and melittin on the lipopolysaccharide(LPS) and sodium nitroprusside(SNP)-induced expressions of Cell viability, nitric oxide(NO), inducible nitric oxide synthase(iNOS), extra-signal response kinase(ERK), jun N-terminal Kinase(JNK) and p38 kinase(p38)- mitogen activated protein kinase(MAPK) Family- in RAW 264.7 cells, a murine macrophage cell line. Methods : The expressions of cell viability by MTT assay, NO by Nitrite assay and iNOS, ERK, JNK and p38 were determined by Western blotting. Results : 1. Compared with the control group, 0.5, 1, $5{\mu}g/m{\ell}$ bee venom and 5, $10{\mu}g/m{\ell}$ melittin increased cell viability of RAW 264.7 induced by LPS and SNP significantly respectively. 2. Compared with the control group, 0.5, 1, $5{\mu}g/m{\ell}$ bee venom and 5, $10{\mu}g/m{\ell}$ melittin inhibited expression of NO induced by LPS and SNP significantly respectively. 3. Compared with the control group, 1, $5{\mu}g/m{\ell}$ bee venom and 5, $10{\mu}g/m{\ell}$ melittin inhibited expression of iNOS induced by LPS significantly and 0.5, 1, $5{\mu}g/m{\ell}$ bee venom and 5, $10{\mu}g/m{\ell}$ melittin inhibited expression of iNOS induced by SNP significantly. 4. Compared with the control group, the expression of ERK induced by LPS and SNP decreased significantly in the treatment groups of $5{\mu}g/m{\ell}$ bee venom and 5, $10{\mu}g/m{\ell}$ melittin, which of p-ERK by LPS also did in 1, $5{\mu}g/m{\ell}$ bee venom and 5, $10{\mu}g/m{\ell}$ melittin, but which of p-ERK by SNP did not decrease. 5. Compared with the control group, the. expression of JNK induced by LPS and SNP decreased significantly in the treatment groups of 5, $10{\mu}g/m{\ell}$ melittin, which of p-JNK by LPS in 5, $10{\mu}g/m{\ell}$ melittin and by SNP in $1{\mu}g/m{\ell}$ bee venom and $10{\mu}g/m{\ell}$ melittin decreased significantly. 6. Compared with the control group, the expression of p38 induced by LPS did not have significant difference, which induced by SNP decreased significantly in the treatment groups of 1, $5{\mu}g/m{\ell}$ bee venom and 5, $10{\mu}g/m{\ell}$ melittin. p-p38 induced by LPS decreased significantly in the treatment group of $10{\mu}g/m{\ell}$ of melittin, which induced by SNP also decreased significantly in 0.5, 1, $5{\mu}g/m{\ell}$ bee venom and 5, $10{\mu}g/m{\ell}$ melittin.

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Depression of L-type $Ca^{2+}$ and Transient Outward $K^+$ Currents in Endotoxin-treated Rat Cardiac

  • Park, Kyu-Sang;Lee, Boo-Soo;Kong, In-Deok;Lee, Joong-Woo
    • The Korean Journal of Physiology and Pharmacology
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    • v.3 no.6
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    • pp.623-630
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    • 1999
  • Decreased cardiac contractility occurs in endotoxicosis, but little is known about the ionic mechanism responsible for myocardial dysfunction. In this study, we examined the changes in $Ca{2+}$ and $K^+$ currents in cardiac myocytes from endotoxin-treated rat. Ventricular myocytes were isolated from normal and endotoxemic rats (ex vivo), that were treated for 10 hours with Salmonella enteritidis lipopolysaccharides (LPS; 1.5 mg/kg) intravenously. Normal cardiac myocytes were also incubated for 6 hours with 200 ng/ml LPS (in vitro). L-type $Ca{2+}$ current $(I_{Ca,L})$ and transient outward $K^+$ current $(I_{to})$ were measured using whole cell patch clamp techniques. Peak $I_{Ca,L}$ was reduced in endotoxemic myocytes (ex vivo; 6.00.4 pA/pF, P<0.01) compared to normal myocytes (control; 10.90.6 pA/pF). Exposure to endotoxin in vitro also attenuated $I_{Ca,L}$ (8.40.4 pA/pF, P<0.01). The amplitude of $(I_{to})$ on depolarization to 60 mV was reduced in endotoxin treated myocytes (16.51.5 pA/pF, P<0.01, ex vivo; 20.00.9 pA/pF, P<0.01 , in vitro) compared to normal myocytes (control; 24.71.0 pA/pF). There was no voltage shift in steady-state inactivation of $I_{Ca,L}$ and $(I_{to})$ between groups. These results suggest that endotoxin reduces $Ca{2+}$ and $K^+$ currents of rat cardiac myocytes, which may lead to cardiac dysfunction.

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Effects of Jamyong-oil on the Diabetic Rats induced by Streptozotocin (잠용유가 Streptozotocin으로 유발된 흰쥐의 실험적 당뇨에 미치는 영향)

  • Kim Jang-Hyun
    • The Journal of Pediatrics of Korean Medicine
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    • v.10 no.1
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    • pp.221-244
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    • 1996
  • In order to study the effects of Jamyong-oil(蠶?油) on the diabetic rats induced by streptozotocin, during 15days rats were administered Jamyong-oil after streptozotocin injection(50mg/kg). On 2nd, 9th and 15th day, I investigated the levels of serum glucose, serum total cholesterol, serum triglyceride, serum amylase, and body weight. The last day, I killed rats and investigated hepatic lipid peroxide, tissue amylase. The results were obtained as follows: 1. Serum glucose levels of the sample group decreased effectively (p < 0.05) at the 15th day as compared with the control group. 2. Serum total cholesterol levels of the sample group decreased effectively (p < 0.05) at the 9th and 15th day as compared with the control group. 3. Serum triglyceride levels of the sample group decreased effectively (p < 0.05) at the 15th day as compared with the control group. 4. Activities of the serum amylase of the sample group increased respectively at the 9th (p < 0.05) and 15th (p < 0.01) day as compared with the control group. 5. Body weights of the sample group increased effectively (p < 0.05) at the 15th day as compared with the control group. 6. Hepatic lipid peroxide levels of the sample group decreased significantly (p < 0.01) as compared with the control group. 7. Tissue amylase levels of the sample group increased but not effective as compared with the control group.

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An Analysis of the Control Limit in p-chart Applying Binomial Distribution Using Commercial Software

  • Yoo Wang-Jin;Park Won-Joo
    • Proceedings of the Korean Society for Quality Management Conference
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    • 1998.11a
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    • pp.198-207
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    • 1998
  • The p chart approximate to the normal distribution has a difficulty to analyze the process condition precisely when the negative LCL is occurred. Furthermore, the probability of Type I error increases compared with using its original binomial distribution. For a long time the p chart has been used as approximated to the normal distribution because of its easy use. However, it becomes rapid and convenient to calculate the binomial distribution through the development of computer and software, so it is strongly suggested to use the binomial distribution determining control limits to reduce the probability of Type I error. In this study, I suggest that the control limits can be designed in use of binomial distribution and they can be utilized without special software by illustrating the certain work for establishing p-chart with the commercial one(EXCEL).

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Effects of Feeding Clay Mineral Pegmatite and Vitamin A on Growth Performance, Serum Profile and Carcass Characteristics of Fattening Hanwoo Steers (거정석과 비타민 A 급여가 거세한우의 성장, 혈액성상 및 도체특성에 미치는 영향)

  • Kim, B.K.;Go, S.J.;Kim, Y.J.
    • Journal of Animal Science and Technology
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    • v.47 no.2
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    • pp.283-292
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    • 2005
  • This study was conducted to determine the effect of dietary supplements of mineral(pegmatite) powder on the growth performance and meat quality during 14 month in 24 heads of Hanwoo steers. The Hanwoo steers were randomly allotted 3 treatments(8 heads I treatment); Control(0 %), Tl(supplemented with pegmatite 2.0% and vitamin A 0.2 %), T2(supplemented with pegmatite 2.0 %). The body weights of control, Tl and T2 were 646.2 kg, 624.0 kg and 656.8 kg on 26 month respectively. The daily gain was higher in T2(0.87 kg) than the others. The concentration of vitamin A(retinol) in the blood serum in T1(61.75 $\ell$ I dl) was higher than' control(41.93$\ell$ I dl) and T2(46.10mg I dl)(P < 0.05). The concentration of total cholesterol was lowest in TI (130.17mgI di) than the others(P< 0.05). Marbling scores and meat quality grade were to significnatly higher in T2(5.50 and 3.50) than control(2.71 and 1.83) and Tl(3.00 and 2.00)(P< 0.05).

Effects of Coptidis Rhizoma on the Change of Interleukin-6 and $TNF-{\alpha}$ Level induced by LPS I.C.V. Injection in Mice (황연(黃連)이 Lipopolysaccharide 뇌실 주입으로 유발된 생쥐의 IL-6와 $TNF-{\alpha}$ 변화에 미치는 영향)

  • Sim Eun-Yeong;Yun Jeong-Moon;Lee Tae-Hee
    • Herbal Formula Science
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    • v.12 no.1
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    • pp.209-223
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    • 2004
  • Objective: This study was conducted to investigate the effects of Coptidis Rhizoma on the plasma IL-6 and $TNF-{\alpha}$ level in mice by intracerebroventricular(I.C.V.) injection of Lipopolysaccharide (LPS). Method: 6 mice were assigned to each of the Normal group, the Control group, and the individual Experimental groups. In the Normal group only saline was administered intragastrically, and in the Control group LPS was injected intracerebroventricularly 1 hr after intragastric administration of saline. In the Experimental groups Coptidis Rhizoma(0.5g/kg, 1.0g/kg, 3.0g/kg) was administered intragastrically to mice 1 hr prior to LPS (100ng/mouse) I.C.V. Injection. To measure the plasma IL-6 and $TNF-{\alpha}$ level of mice, their blood samples were collected from retro-orbital venous plexus, immediately centrifuged at $4^{\circ}C$, and plasma was removed and stored frozen at $-83^{\circ}C$ for later determination of plasma IL-6 and $TNF-{\alpha}$. Result: 1. LPS I.C.V. Injection increased plasma IL-6 level significantly in a dose-dependent manner compared with Normal group. (P<0.01) The plasma IL-6 concentration reached a significant maximal level about 1 hr after LPS(100ng/mouse) I.C.V. Injection.(P<0.001) 2. Both the 0.5g/kg(Sample A) and 1.0g/kg(Sample B) groups to which Coptidis Rhizoma was administered intragastrically 1 hr prior to LPS(100ng/mouse) I.C.V. Injection showed insignificant lower plama IL-6 level in 1 hr than Control group(P>0.05), and 3.0g/kg group(Sample C) conversely showed higher plama IL-6 level than Control group. 3. LPS I.C.V. Injection increased plasma $TNF-{\alpha}$ level significantly in a dose-dependent manner compared with Normal group.(P<0.05) The plasma $TNF-{\alpha}$ concentration reached a significant maximal level about 1 hr after LPS(100ng/mouse) I.C.V. Injection.(P<0.001) 4. All Sample groups(0.5g/kg, 1.0g/kg, and 3.0g/kg) to which Coptidis Rhizoma was administered intragastrically with each constituent-dose 1 hr prior to LPS(100ng/mouse) I.C.V. Injection showed significant lower $TNF-{\alpha}$ plama level in 1 hr than Control group.(P<0.001) These data revealed that Coptidis Rhizoma might have anti inflammatory effect by reducing the plasma $TNF-{\alpha}$ level in a dose dependent manner in mice LPS I.C.V. Injection.

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The Effects of Hand Moxibustion Therapy on Decreasing Pain and Relieving Coldness of Women with a Hysterectomy (자궁적출술을 경험한 여성의 통증과 냉증완화를 위한 쑥뜸요법 효과의 예비연구)

  • Shin, Kyung Rim;Kwak, Soon Ae;Shin, Su Jin
    • Korean Journal of Adult Nursing
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    • v.13 no.1
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    • pp.159-170
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    • 2001
  • The purpose of this pilot study was to identify the effects of hand moxibustion therapy to decrease pain and relieve coldness of the body in women who had a hysterectomy. The conceptual framework of this study was derived from Ying-Yang, Khi and other corresponding theories. The data were collected from February to May 1997. A Graphic Rating scale was used to measure the degree of pain and Digital Infrared Thermographic Imaging(D.I.T.I) was used to examine the degree of coldness. The subjects were women who resided in Seoul and had a hysterectomy within five years. An experimental group was composed of five women who received moxibustion and a control group was composed of five who did not. The research procedure began with having both the experimental group and control group describe their general characteristics and the degree of pain they perceived. Then, Digital Infrared Thermographic Imaging(D.I.T.I) was conducted. Moxibustion was only given to the experimental group on both hands twice every day for a total of five weeks. Their perception of pain and D.I.T.I were examined weekly. The control group received no therapy. After finishing therapy, the perception of pain and D.I.T.I for both groups were also measured. According to this study, moxibustion therapy resulted in a change of body temperature on the right shoulder joint(p=0.00074), abdomen(p= 0.0047), waist(p=0.0068) and hands(p=0.0317) respectively. Also, the study results showed significant decrease (p=0.0001) in pain over time and significant improvement over body coldness.

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