• Title, Summary, Keyword: MHP

Search Result 105, Processing Time 0.048 seconds

Ontogeny and Characterization of Major Haemolymph Protein(MHP) in Helicoverpa assulta (담배나방 (Helicoverpa assulta)의 발생중 Major Haemolymph Protein(MHP)의 변화 및 특성)

  • 유종명;조시형;이형철
    • The Korean Journal of Zoology
    • /
    • v.39 no.3
    • /
    • pp.307-316
    • /
    • 1996
  • A persistent major haemolyruph protein (MHP) was confirmed, and its ontogeny and physicochemical charadedstics were investigated in Helicoverpa assulta. The MHP existed continually during larval-pupal-adult development, and its ontogeny was similar to that of total haemolymph protein concentration during development. Its content increased with larval growth, and kept to high level during pupal-adult development except for temporary decrease at the early pupal and adult stages. The MHP was purified by ammonium sulfate precipitation, gel filtration and ion exchange chromatography. The purified MHP was determined to be hexamer glycolipoprotein (pI 5.9, M.W. 414kDa) consisted of single type subunit (69kDa). Amino acid analysis suggested that the MHP contained a relatively high content of aromatic amino acids (18.27 mole % of tryptophan, 7.47 mole % of tyrosine and 6.51 mole % of phenylalanine) compared to storage proteins from other insects. Immunodiffusion test and electrophoretic analysis of the organ proteins (gut, fat body, and Malphigian tubule) suggested that the major haemolymph protein was present in the fat body.

  • PDF

Effect of Sugared Sweeteners on Quality Characteristics of Prunus mume Fruit Syrup (당침 당이 매실 청 품질에 미치는 영향)

  • Mun, Kwang-Ho;Lee, Han-Cheol;Jo, Ah-Hyeon;Lee, Seo-Hyun;Kim, Na-Ye-Seul;Park, Eun-Ji;Kang, Ju-Yeong;Kim, Jung-Beom
    • The Korean Journal of Food And Nutrition
    • /
    • v.32 no.3
    • /
    • pp.161-166
    • /
    • 2019
  • The objective of this study was to evaluate the quality-based characteristics of Prunus mume fruit syrup, which is manufactured with various sugared sweeteners for suggestion of suitable alternative sweetener. Sweetener such as sucrose (MHP1), crystalline fructose (MHP2) and liquid fructo-oligosaccharide (MHP3) are used to manufacture Prunus mume fruit syrup. The sugar content of MHP1, MHP2 and MHP3 showed 53, 54 and $36^{\circ}Brix$, respectively. The total organic acid content of MHP1, MHP2 and MHP3 was 2.22, 3.07 and 3.71%. The total free sugar content of MHP1, MHP2 and MHP3 was 54.39, 47.52% and 31.62%, respectively. The appearance of MHP1 and MHP2 remained unchanged for the entire period but MHP3 had molded since the first week. This was as a result of the low total free sugar content in MHP3 sugared with liquid fructo-oligosaccharide compared to MHP1 and MHP2 sugared with solid sucrose and fructose. The sensory characteristics of MHP2 manufactured with crystalline fructose indicated an above average quality, indicating that it is difficult to manufacture Prunus mume fruit syrup using liquid sugar. It is suggested that crystalline fructose characterized solid form and lower glycemic index than sucrose be useful to manufacture Prunus mume fruit syrup as alternative sweetener.

Electrophoretic Patterns of Hemolymph Proteins of Varieties with Long and Short Life Span in the Silkworm Bombyx mori L. (장${\cdot}$단명 누에 품종의 체액단백질의 전기영동상)

  • Kang, Pil-Don;Yoon, Hyung-Joo;Ryu, Kang-Sun;Sohn, Bong-Hee;Sohn, Hung-Dae
    • Journal of Sericultural and Entomological Science
    • /
    • v.41 no.1
    • /
    • pp.1-8
    • /
    • 1999
  • Hemolymph protein patterns of silkworms in terms of short and long life span were analyzed by native- and SDS-polyacrylamide gel electrophoresis (PAGE) with the developmental stages. From the native-PAGE patterns of silkworm major hemolymph proteins there were varietal differences on the first day of the pupal stage and were classified into there groups MHP-a, b and c SA 10, JAM109 and J037 were grouped into MHP-Ⅰ, Hangang, Chungmun and Daizo(sdi) into MHP-Ⅱ and NTZN, Sulak, Qoichuk and PR varieties into MHP-Ⅲ group. It was found that the MHP in each group revealed similar patterns and changes with development of pupal stage. In the first day of adult, MHP-c was clearly detected in both female and male of the Daizo(sdi), but not in the J037, indicating that there was significantly varietal differences in electrophoretical protein pattern. In addition, the results of protein pattern of hemolymph by SDS-PAGE showed also varietal differences in the concentration of hemolymph protein.

  • PDF

Biochemical Studies on the Major hemolymph Proteins (MHPs) of the Silkworm, Bombyx mori (누에 체액주단백질에 관한 생화학적 연구)

  • 성수일
    • Journal of Sericultural and Entomological Science
    • /
    • v.28 no.1
    • /
    • pp.30-36
    • /
    • 1986
  • Polyacrylamide gel electrophoresis and autoradiography were applied to investigate the developmental profiles of the major hemplymph proteins (MHPs) and their biosynthesis. In addition, some biochemical methods were also used to isolate and purify the MHPs. The obtained results are summarized as follows. 1. MHP-a began to appear from the 2nd day of the fourth-instar larva while MHP-b and -c were detected first on the 1st day of the fifth-instar larva. All these proteins, however, showed a drastic increase in concentration at the 2nd day of the fifth-instar larva. 2. MHP-b and -c were synthesized in fat body on early day of the fifth-instar larva, but the possibility of MHP-a synthesis in fat body was excluded. 3. MHP-b was isolated and purified by heat-treatment (6$0^{\circ}C$), gel filtration on Sephadex G-100 and column chromatography on DEAE-cellulose and CM-cellulose. Purified MHP-b showed a single band on polyacrylamide gel- and SDS-polyacrylamide gel electrophoresis.

  • PDF

MHP-based Multi-Step the EPG System using Preference of Audience Groups (시청자 그룹 선호도를 이용한 MHP 기반의 다단계 EPG 시스템)

  • Lee, Si-Hwa;Hwang, Dae-Hoon
    • Journal of Korea Multimedia Society
    • /
    • v.12 no.2
    • /
    • pp.219-230
    • /
    • 2009
  • With the development of broadcasting technology from analogue to interactive digital, the number of TV channels and TV contents provided to audiences is increasing in a rapid speed. In this multi-channel world, it is difficult to adapt to the increase of the TV channel numbers and their contents merely using remote controller to search channels. For these reasons, the EPG system, one of the essential services providing convenience to audiences, is proposed in this paper. Collaborative filtering method with multi-step filtering is used in EPG to recommend contents according to the preference of audience groups with similar preference. To implement our designed TV contents recommendation EPG, we prefer DiTV and use JavaXlet programming based on MHP. The European DVB-MHP specification will be also our domestic standard in DiTV. Finally, the result is verified by OpenMHP emulator.

  • PDF

Optimal Incorporation Level of Dietary Alternative Phosphate (MgHPO4) and Requirement for Phosphorus in Juvenile Far Eastern Catfish (Silurus asotus)

  • Yoon, Tae-Hyun;Lee, Dong-Hoon;Won, Seung-Gun;Ra, Chang-Six;Kim, Jeong-Dae
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.28 no.1
    • /
    • pp.111-119
    • /
    • 2015
  • A growth trial was conducted to determine the optimal incorporation level of dietary magnesium hydrogen phosphate (MHP, $MgHPO_4$), which was manufactured from swine manure and phosphorus (P), required by juvenile far eastern catfish (Silurus asotus). Graded MHP of 0.5%, 1.0%, 1.5%, and 2.0%, and 2.0% monocalcium phosphate (MCP) each was added to the basal diet (control) in lieu of cellulose to become the range of available P (AP) from 0.4% to 0.8% of which diets were designated as control, MHP0.5, MHP1.0, MHP1.5, MHP2.0, and MCP, respectively. Control diet contained fish meal (20%), soybean meal (40%), wheat flour (27%), corn gluten meal (5%), fish oil (2%) and soy oil (2%) as main ingredients. Following a 24 h fasting, 540 fish with a mean body weight of 11.8 g were randomly allotted to 6 groups in triplicate, whereby 18 tanks ($0.4{\times}0.6{\times}0.36cm$, water volume of 66 L) were prepared. The feeding experiment lasted for 8 weeks. Fish group fed the control diet showed the lowest weight gain (WG) and feed efficiency (FE) among treatments. The WG was, however, not significantly different (p>0.05) from that of fish group fed MHP0.5. Fish group fed MHP2.0 showed the highest WG and FE of which values were not significantly different from those of fish groups fed diets MHP1.0 and MHP1.5 as well as MCP (p>0.05) except fish groups fed control and MHP0.5. Aspartate aminotransferase was significantly decreased with an increase in available P, while alanine aminotransferase did not show a significant difference among treatment. The highest inorganic P in plasma was observed in fish fed MHP2.0. From the present results, a second-order regression analysis revealed that the optimal dietary MHP level and the AP requirement were found to be 1.62% and 0.7%, respectively.

An MHP-based Method for Reserving Program via its Promotion Program (디지털 멀티미디어 방송 데이터 서비스 표준인 MHP 기반의 예고 프로그램을 통한 방송 프로그램 예약 시스템)

  • Ko, Kwang-Il
    • Journal of Digital Contents Society
    • /
    • v.8 no.3
    • /
    • pp.347-353
    • /
    • 2007
  • As the number of channels and programs are increasing dramatically, a viewer seriously needs to book a program at the very time of watching its promotion program by "only one time" pressing remote controller's button. The program reserving system requiring to search a program via EPG is usually hard to operate and some researches that allow a viewer to book a program via its promotion program require additional heavy facilities such as image processing or ultra-frequency recognizing systems. In this paper, a new program reservation system is introduced. the system allows a viewer to book a program via its promotion program. The system is conformable to MHP (which is the data service standard most widely adopted in the world) so that the broadcasting stations need no additional equipments to implement it as long as they follow the MHP standard.

  • PDF

A Design and Implementation of EPG Using Collaborative Filtering Based on MHP (MHP 기반의 협업필터링을 적용한 EPG 설계 및 구현)

  • Lee, Si-Hwa;Hwang, Dae-Hoon
    • Journal of Korea Multimedia Society
    • /
    • v.10 no.1
    • /
    • pp.128-138
    • /
    • 2007
  • With the development of broadcasting technology from analogue to interactive digital, the number of TV channels and contents provided to audience is increasing in a rapid speed. In this multi-media and multi-channel world, it is difficult to adapt to the increase of TV channel numbers and their contents merely using remote controller to search channels. Due to this reason, EPG (Electronic Program Guide) has been one of the essential services providing convenience to audience. So EPG complying with European DVB-MHP specifications, which will be also our domestic standard, is proposed in this paper. In order to provide audiences with DiTV contents they preferred, we apply collaborative filtering algorithm to recommend contents according to preference value of audience group with similar preference. And we use JavaXlet application which is based on MHP to implement this EPG, while the result can be verified by OpenMHP emulator.

  • PDF

Performance Analysis of M-ary THMA-UWB System Using MHP as Basis Pulses (MHP를 기저펄스로 사용하는 M진 THMA-UWB 시스템의 성능 분석)

  • Hwang, Jun-Hyeok;Kim, Suk-Chan;Kim, Jin-Sic;Park, Ju-Sung;Choi, Won-Tae;Kang, Bong-Soon
    • Proceedings of the IEEK Conference
    • /
    • /
    • pp.93-94
    • /
    • 2007
  • 이 논문은 시간도약 다중접속(time hopping multiple access: THMA) 초광대역(ultra wideband: UWB) 시스템에서 Modified Hermite Polynomial(MHP)을 기저펄스로 사용하는 M진 고속전송 기법을 제안하고, 시스템의 성능을 분석한다. MHP 펄스 차수들의 상호간 직교성을 이용하여 서로 다른 차수의 MHP 기저펄스 N개를 선형결합하여 M진으로 전송한다. MHP 기저펄스의 상호상관 함수를 구하여 제안하는 M진 시스템의 이론적인 성능을 분석하고, 모의실험을 통해서 기존의 M진 전송에 비해서 시스템의 비트오류확률(bit error rate: BER)이 개선됨을 보인다.

  • PDF

Application of Miniature Heat Pipe for Notebook PC Cooling (노트북 PC CPU 냉각용 소형 히트파이프 Packaging 연구)

  • Moon, Seok-Hwan;Hwang, Gunn;Choy, Tae-Goo
    • Transactions of the Korean Society of Mechanical Engineers B
    • /
    • v.25 no.6
    • /
    • pp.799-803
    • /
    • 2001
  • Miniature heat pipe(MHP) with woven-wired wick was used to cool the CPU of a notebook PC. The pipe with circular cross-section was pressed and bent for packaging the MHP into a notebook PC with very limited compact packaging space. A cross-sectional area of the pipe is reduced about 30% as the MHP with 4mm diameter is pressed to 2mm thickness. In the present study a performance test has been performed in order to review varying of operating performance according to pressed thickness variation and heat dissipation capacity of MHP cooling module that is packaged on a notebook PC. New wick type was considered for overcoming low heat transfer limit when MHP is pressed to thin-plate. The limiting thickness or pressing is shown to be within the range of 2mm∼2.5mm through the performance test with varying the pressing thickness. When the wall thickness of 0.4mm is reduced to 0.25mm for minimizing conductive thermal resistance through the wall of heat pipe, heat transfer limit and thermal resistance of MHP were improved about 10%. In the meantime, it is shown that the thermal resistance and heat transfer limit for the MHP with central wick type are higher than those of MHP with existing wick types. The results of performance test for MHP cooling modules with woven-wired wick to cool a notebook PC shows the stability as cooling system since T(sub)j(Temperature of Processor Junction) satisfy a demand condition of 0∼100$\^{C}$ under 11.5W of CPU heat.