• 제목/요약/키워드: HP300

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Evaluation of HP300 Soybean Protein in Starter pig Diets

  • Zhu, Xiaoping;Li, Defa;Qiao, Shiyan;Xiao, Changting;Qiao, Qingyan;Ji, Cheng
    • Asian-Australasian Journal of Animal Sciences
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    • v.11 no.2
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    • pp.201-207
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    • 1998
  • One growth trial and one digestibility trial were conducted to evaluate the nutritional value of HP300, a commercially processed soybean meal product for weanling pigs. Dried whey, fish meal and/or full fat extruded soybeans (FFES) as well as portions of soybean meal (SBM) were replaced with HP300 in weanling pig diets. The objectives were to investigate the effects of HP300 on growth performance, digestibility, ileal amino acid digestibility and blood amino acid concentration in weanling pigs. One hundred and twenty crossbred $(Duroc{\times}Beijing\;Black{\times}Landrace)$ pigs weaned at 28 days of age were used in the growth trial. The pigs were randomly allocated to five treatments, with three pens per treatment and eight pigs per pen. The trial duration was 28 days. The control (CTRL) diet contained no HP300; in treatments 2, 3 and 4, dried whey and fish meal were replaced by 3.0%, 7.5% and 10.5% HP300; in treatment 5, full fat extruded soybeans were replaced by 10.5% HP300 plus soybean oil to attain the same metabolic energy content as FFES. Five T-cannulated barrows were used in a digestibility trial with a $5{\times}5$ Latin square design to determine nitrogen retention and amino acid ileal digestibility of HP300 used alone or mixed with other ingredients. The results indicated that replacement of dried whey, fish meal, full fat extruded soybeans and a part of the soybean meal with HP300 in piglet diets improved average daily gain and feed conversion ratio (p < 0.05). There was a trend toward improved DM, crude protein and amino acid ileal digestibilities and improved protein and amino acid ileal digestibilities and improved protein net availability with the use of HP300 in swine diets.

Effects of Hydrolysis pH on Distribution of Molecular Weights of Alginates of Sea Tangle Laminaria japonica (다시마 (Laminaria japonica) 알긴산의 분자량 분포에 미치는 가수분해 pH의 영향)

  • Lim, Yeong-Seon;You, Byeong-Jin
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.39 no.4
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    • pp.313-317
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    • 2006
  • To prepare oligouronic acids from high-molecular-weight alginates, sea tangle (Laminaria japonica) alginates were hydrolyzed at various pHs for 1 hr at 80$^{\circ}C$. The effects of hydrolysis pH (HpH) on the average molecular weight (AMW) and MW distribution ratios (DRs) in the hydrolyzed alginates were investigated. As HpH decreased, the DRs of the alginates with MW>500 kDa and MW=300-500 kDa decreased exponentially, while it increased exponentially for MW<50 kDa. For MW=100-300 kDa, DR increased exponentially as HpH fell from 5.0 to 3.5, and then decreased exponentially. Similarly, for MW=50-100 kDa, DR increased exponentially as HpH increased to 1.0 from 5.0, and then decreased exponentially. As HpH decreased, the MW cutoff size and AMW of alginates fraction with the highest DR were decreased. For HpH 4.5 and 5.0, the MW cutoff size with the highest DRs was MW=300-500 kDa; the DRs were 28.9 and 32.6%, respectively; and the AMW of both was about 400 kDa, for HpH 3.5 and 4.0, the cutoff size was MW=100-300 kDa; the DRs were about 28%: and the AMWs were both about 200 kDa. For HpH 3.0, the cutoff size was MW=50-100; the DR was 29.0%; and the AMW was 73 kDa. For HpH values below 2.0, the MW cutoff size with the highest DRs was MW<50 kDa, and all of the AMWs were below 28 kDa.

Design and analysis of 300HP, 60,000rpm Permanent Magnet Synchronous Motor for Turbo Machine (터보기기용 300HP, 60,000rpm급 영구자석 동기전동기의 설계 및 특성해석)

  • Jeong, Y.H.;Choi, S.H.;Shin, J.H.
    • Proceedings of the KIEE Conference
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    • 2007.04c
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    • pp.8-14
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    • 2007
  • This paper deals with the electrical design and analysis of a 300HP, 60,000rpm permanent magnet synchronous motor for turbo machine. The design is performed by analytic method of magnetic field theory. And electrical losses of the motor driven by current with sinusoidal and harmonic form are analyzed by using FEM.

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Development of a 300 HP Class Turbo Blower with Air Foil Bearings (공기 포일 베어링을 사용하는 300마력급 터보송풍기 개발)

  • Kim, Kyeong-Su;Lee, Ki-Ho;Park, Ki-Cheol;Lee, Si-Woo;Kim, Seung-Woo
    • 유체기계공업학회:학술대회논문집
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    • 2006.08a
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    • pp.331-334
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    • 2006
  • Air foil bearings have been attempted for application to industrial turbo machines, since they have several advantages over oil bearings in terms of endurance, simplicity, environment-friendliness, efficiency, sound and vibration, and small turbo machines with air foil bearings are in the market as the result. Recently, researches on widening the application spectrum of air foil bearings are in progress worldwide. In this paper, a 300 HP class turbo blower using air foil bearings is introduced. The turbo blower has a high speed PMSM(Permanent Magnet Synchronous Motor) driving a compressor, and air flow rate is designed to be $180\;m^3/min$ at pressure ratio of 1.6. The maximum rotational speed is set to 17,000 RPM to maximize the total efficiency with the result that the weight of rotor assembly is 26kg, which is expected to be the largest turbo machine with air foil bearings ever developed in the world.

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Design of Chamber in Continuous Furnace for Uniform Temperature Distribution (균일 온도를 유지하는 연속 소성로 체임버의 설계)

  • Lee, Kwangju;Choi, Joon Hyeok;Jang, Han Seul
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.14 no.11
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    • pp.5344-5351
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    • 2013
  • Chambers in a continuous furnace were designed. A chamber consists of inlets and outlets of nitrogen gas which is used to discharge burned gas and heating pipes (HP) which are used to keep temperature of fired materials at $1,300^{\circ}C$. Design variables were numbers of inlets and outlets, distance between floor and lower HP ($h_1$), distance between lower HP and fired materials ($h_2$), distance between fired materials and upper HP ($h_3$), temperature of HP, numbers of HP and distance between HP. The numbers of inlets and outlets were determined so that nitrogen gas formed a laminar flow for efficient discharge. All other design variables were determined so that temperature of fired materials is as uniform as possible near $1,300^{\circ}C$. Chambers were produced and temperature was measured at 21 points using thermocouples. The largest deviation from $1,300^{\circ}C$ was less than ${\pm}2.2^{\circ}C$.

Utilization of Soybean for Swine Diets (양돈 사료에 있어 대두의 이용)

  • Yoo, Jong-Sang;Kim, In-Ho
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.8 no.1
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    • pp.156-166
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    • 2007
  • Soybean meal was widely used as a protein source in pig feedstuff because it has a good amino acid balance compared with other vegetable sources. However, soybeans contain trypsin inhibitors and other antinutritional factors which can lead to lower the digestibility of amino acid, and consequently reduce the growth performance. Heat treatment of soybeans is helpful shown to decrease the antinutritional factors and elicit an improved growth performance. Additionally, microbial processe using(HP 100, HP 200 and HP 300), and non-protein constituent removal are suggested to improve the growth performance and nutrient digestibility. Inadequate heat treatment of soybeans gives no damage to adult pig, but it has been shown to decrease nutrient digestibility in young pig. So, soy protein concentrate (SPC) and Isolated soy protein(ISP) were more widely used for nursery pigs than growing and finishing pigs, since SPC and ISP have similar characteristics as milk product.

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Design and Analysis of Thrust Magnetic Bearing/Damper for 300HP Class High Speed Motor (300마력급 초고속 전동기의 스러스트 자기 베어링/댐퍼 설계 및 특성해석)

  • Jang, Seok-Myeong;Choi, Jang-Young;Park, Ji-Hoon;Lee, Yong-Bok;Lee, Hee-Sub
    • Proceedings of the KIEE Conference
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    • 2007.04c
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    • pp.5-7
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    • 2007
  • This paper deals with design and analysis of thrust magnetic bearing for 300HP class high speed motor. Using the solutions obtained from equivalent magnetic circuits, we predicts the electromagnetic characteristics such as thrust, time constant and power loss according to design parameters. And then, using non-linear finite element analysis, a detailed design is performed considering saturation in order to meet requirements.

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Hepatoprotective Effects of Polysaccharides of Croton tiglium on $\textrm{CCl}_4$ Intoxication (사염화탄소의 간독성에 대한 파두 다당류분획의 예방효과)

  • 이은경;길이룡;소동수;창동신;전선덕;정명규;문창규
    • Environmental Analysis Health and Toxicology
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    • v.11 no.3_4
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    • pp.59-63
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    • 1996
  • In present study, we fractionated polysaccharides from Croton tiglium and investigated their hepatoprotective effects on CCl$_4$ intoxication. Polysaccharide fraction of which molecular weight is over 300,000 (HP) showed the most potent hepatoprotective effects on CCl$_4$ intoxication. Lipid peroxidation, sAST and sALT were used as parameters to evaluate the liver damage. Glucose, xylose and arabinose were found to be monosaccharides composing sugar moiety of HP.

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Effect of Dietary Protein and Lipid Levels on Compensatory Growth of Juvenile Olive Flounder (Paralichthys olivaceus) Reared in Suboptimal Temperature

  • Cho, S.H.
    • Asian-Australasian Journal of Animal Sciences
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    • v.24 no.3
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    • pp.407-413
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    • 2011
  • Effect of dietary protein and lipid levels on compensatory growth of juvenile olive flounder (Paralichthys olivaceus) was determined in suboptimal temperature ($13.4{\pm}1.42^{\circ}C$). Five hundred forty fish averaging 79.2 g were randomly distributed into 27 of 300 L flow-through tanks (20 fish/tank). Nine treatments were prepared in triplicate: fish were hand-fed with control (C) diet for 10 weeks (10WF-C); four fish groups were starved for 1 week and then fed with C, high protein (HP), high lipid (HL) and combined high protein and high lipid (HPL) diets for 9 weeks, referred to as 9WF-C, 9WF-HP, 9WF-HL, 9WF-HPL, respectively; and other four fish groups were starved for 2 weeks and then fed with C, HP, HL and HPL diets for 8 weeks, referred to as 8WF-C, 8WF-HP, 8WF-HL and 8WF-HPL, respectively. Weight gain and specific growth rate of fish in 9WF-HP, 9WF-HPL, 8WF-HP and 8WF-HPL treatments were higher than those of fish in 9WF-HL and 8WF-HL treatments. Feed efficiency of fish in 8WF-HP treatment was higher than that of fish in 9WF-C, 9WF-HL and 8WF-HL treatments. Protein efficiency ratio of fish in 10WF-C, 8WF-C, 8WF-HP and 8WF-HPL treatments was higher that that of fish in 9WF-HL and 8WF-HL treatments. Juvenile olive flounder subjected to 2-week feed deprivation could achieve full compensatory growth with dietary supplementation of protein or combined high protein and high lipid.