• Title/Summary/Keyword: incorporation

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Effect of the different cover crop incorporation on glomalin-related soil protein and soybean and maize growth

  • Higo, Masao;Gunji, Kento;Isobe, Katsunori
    • 한국작물학회:학술대회논문집
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    • 한국작물학회 2017년도 9th Asian Crop Science Association conference
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    • pp.344-344
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    • 2017
  • The glycoprotein known as glomalin-related soil protein (GRSP) is abundantly produced on the hyphae and spores of arbuscular mycorrhizal fungi (AMF) in soil and roots. GRSP play a decisive role in the soil aggregation, but GRSP was also sensitive to agricultural managements. Thus, our objectives were to assess the effect of different cover crop incorporation on the GRSP content in soil and growth of subsequent soybean and maize. Pot experiments with the incorporation of four cover crops were set up. The same amount (666g) of aboveground plant parts of wheat (AMF host), hairy vetch (AMF host), mustard (non-host) and rapeseed (non-host) was separately incorporated into soils. The aboveground plant parts and roots of soybean and maize were grown in each incorporated pots and sampled at 6 and 9 weeks after sowing. Our results showed that the different cover crops incorporation affected soil biological and chemical properties such as EC, $NO_3-N$ content, ${\beta}-glucosidase$ activity, alkaline phosphatase (ALP) activity and GRSP content. The soil EC and $NO_3-N$ content in the hairy vetch, mustard and rapeseed was higher compared to the wheat. The ${\beta}-glucosidase$ activity in the wheat and hairy vetch was significantly higher than that in the mustard and rapeseed, and the ALP activity in the wheat was significantly higher than that in the hairy vetch, mustard, and rapeseed. The GRSP content in the mustard and rapeseed was significantly lower than that of the hairy vetch and wheat. Moreover, The top dry weight and leaf area of soybean and maize in the hairy vetch at 6 weeks were significantly higher compared to the other treatments. Our results indicated that the incorporation of mustard and rapeseed may cause indirectly the decrease of GRSP content and soil enzyme activity in soil. One possible explanation for the decrease of GRSP in non-AMF host crop treatments may be the decrease of AMF density in the soil. AMF are not able to form a symbiotic relationship with Brassicaceae roots due to the release of anti-fungal compounds. This means the AMF may not be able to produce GRSP in the soil. However, the differences in the benefit of cover crop incorporation were shown only by a pot experiment. Comparative investigations of crop residue managements would be applied to both pot experiment and field study to clarify a better selection of cover crops in rotation to encourage GRSP production.

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선하증권과 중재합의의 효력 - 영ㆍ미의 판례를 중심으로 - (Bill of Lading and Effect of Commercial Arbitration Agreement -With Special Reference to English and American Decisions-)

  • 강이수
    • 한국중재학회지:중재연구
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    • 제12권2호
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    • pp.303-336
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    • 2003
  • Incorporation of an arbitration clause by reference to other documents occurs in many international business transactions. The reference is either to another document that contains arbitration clause or to trading rules which contain the arbitration clause, without the main contract mentioning that arbitration has been agreed upon. In fact, incorporation by reference in to a contract of an arbitration clause set forth in another agreement is deemed valid in any number of circumstances, even when the parties to the two contractual instruments are not the same. Difficulties arise when, instead of an express arbitration provision, a contract contains a clause which refers to the trading rules of a certain trade association, so-called external arbitration clause. The U.S. courts which will presume that the parties intended to arbitrate under a particular set of rules when they expressly mentioned arbitration in their agreement, have sometimes refused to enforce contract clauses that do no more than refer to particular trading rules, even if these rules contain provisions binding the parties to arbitrate their disputes. The courts in such cases tend to be careful in determinig whether intent to arbitrate is present. In maritime contracts, the arbitration clause in a charter party is often referred to in the bill of lading. Such reference usually is held binding upon the parties to the contract of carriage, their knowledge of such practice being presumed. A nonsignatory may compell arbitration against a party to an arbitration agreement when that party has entered into a separate contractual relationship with the nonsignatory which incorporates the existing arbitration clause. If a party's arbitration clause is expressly incorporated into a bill of lading, nonsignatories … who are linked to that bill … may be bound to the arbitration agreement of others. An arbitration clause in a charterparty will be incorporated into a bill of lading if either - (a) there are specific words of incorporation in the bill, and the arbitration clause is so worded as to make sense in the context of the bill, and the clause dose not conflict with the express terms of the bill; or (b) there are general words of incorporation in the bill, and the arbitration clause or some other provision in the charter makes it clear that the clause is to govern disputes under the bill as well as under the charter. In all other cases, the arbitration clause is not incorporated into the bill.

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수축저감제를 사용한 콘크리트의 물성변화 및 건조수축 저감 특성 (Physical Properties and Drying Shrinkage of Concrete Using Shrinkage Reducing Admixtures)

  • 한천구;송승헌
    • 한국건축시공학회지
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    • 제5권3호
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    • pp.101-107
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    • 2005
  • This paper reports the contribution of Shrinkage reducing admixture(SRA) to the physical properties and drying shrinkage of concrete. Dosage of SRA is varied with. For the properties of fresh concrete, an increase in SRA dosage results in a decrease in fluidity and air content, while setting time is accelerated. For the properties of hardened concrete, the incorporation of mineral admixture leads to a decrease in compressive strength at early age, whereas after 28 days, the incorporation of fly ash(FA) and blast furnace slag(BS) has greater compressive strength than conventional concrete without admixture. The use of SRA results in a decrease in compressive strength. The incorporation of SRA with every $1\%$ increase causes the decrease of compressive strength by as much as $3\~6\%$. For drying shrinkage properties, the incorporation of FA and BS reduces drying shrinkage slightly. The use of SRA also decreases drying shrinkage. Every $1\%$ of increase in SRA dosage can reduce drying shrinkage by as much as $10\~15\%$

AlGaAs/InGaAs/GaAs Pseudomorphic 구조의 MOCVD 성장 및 2차원 전자가스의 전송특성 (MOCVD Growth of AlGaAs/InGaAs/GaAs Pseudomorphic Structures and Transport Properties of 2DEG)

  • 양계모;서광석;최병두
    • 한국진공학회지
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    • 제2권4호
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    • pp.424-432
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    • 1993
  • AlGaAs/InGaAs/GaAs pseudomorphic structures have been grown by atmosheric pressure-MOCVD . The Al incorporation efficiency is constant but slightly exceeds the Ga incorporation during the growth of AlGaAs layers at $650^{\circ}C$ . Meanwhile , the In incorporation efficiency is constant but slightly less than the Ga incorporation in InGAAs layers. InGaAs/GaAs QWs were grown and their optical properties were characterized . $\delta$-doped Al0.24Ga0.76As/In0.16 Ga0.84As p-HEMT structures were successfully grown by MOCVD and their transport properties were characterized by Hall effect and SdH measurements. SdH Measurements at 3.7K show clear magnetoresistance oscillations and plateaus in the quantum Hall effect confirming the existence of a two-dimensional electron gas(2DEG) and a parallel conduction through the GaAs buffer layer. The fabricated $1.5\mu\textrm{m}$gatelength p-HEMTs having p-type GaAs in the buffer layer show a high transconductance of 200 mS/mm and a good pinch-off characteristics.

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Quality of Low Fat Chicken Nuggets: Effect of Sodium Chloride Replacement and Added Chickpea (Cicer arietinum L.) Hull Flour

  • Verma, Arun K.;Banerjee, Rituparna;Sharma, B.D.
    • Asian-Australasian Journal of Animal Sciences
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    • 제25권2호
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    • pp.291-298
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    • 2012
  • While attempting to develop low salt, low fat and high fibre chicken nuggets, the effect of partial (40%) common salt substitution and incorporation of chickpea hull flour (CHF) at three different levels viz., 5, 7.5 and 10% (Treatments) in pre-standardized low fat chicken nuggets (Control) were observed. Common salt replacement with salt substitute blend led to a significant decrease in pH, emulsion stability, moisture, ash, hardness, cohesiveness, gumminess and chewiness values while incorporation of CHF in low salt, low fat products resulted in decreased emulsion stability, cooking yield, moisture, protein, ash, color values, however dietary fibre and textural properties were increased (p<0.01). Lipid profile revealed a decrease in total cholesterol and glycolipid contents with the incorporation of CHF (p<0.01). All the sensory attributes except appearance and flavor, remained unaffected with salt replacement, while addition of CHF resulted in lower sensory scores (p<0.01). Among low salt, low fat chicken nuggets with CHF, incorporation CHF at 5% level was found optimum having sensory ratings close to very good. Thus most acceptable low salt, low fat and high fibre chicken nuggets could be developed by a salt replacement blend and addition of 5% CHF.

보행관리기 부착형 부분경운-시비 작업기 개발 (Development of Fertilizer-Soil Incorporation Band Tiller for Walking Cultivator)

  • 김찬수;권병철
    • Journal of Biosystems Engineering
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    • 제29권6호
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    • pp.487-494
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    • 2004
  • This study was conducted to develope a fertilizer-soil incorporation band tiller for the walking cultivator. Because the mixing of soil and fertilizer in the furrow of dry-field has been done manually, several time, heavy labor and much man power were required for the job. This rotary type implement is developed to substitute this manual operation for soil-fertilizer incorporation. The results of this study are summarized as follows : 1) This implement was composed of tilling device, fertilizer application device, frame and tail wheel device. 2) The revolution of driving wheel was $11\~28\;rpm$, that of application roller was $13\~14\;rpm$ the application rate range per revolution of driving wheel was $4.43\~11.80\;g$g and the application rate range by the working speed and the opening quantity was $84.12\~557.20\;g/min$. 3) The adequate working speed was $0.20\~0.40\;m/s$ and the required minimum width of open furrow was 250 mm.

Changing PEO coating formation on Mg alloys by particle additions to the treatment electrolyte

  • Blawert, Carsten;Srinivasan, Bala;Liang, Jun;Huang, Yuanding;Hoche, Daniel;Scharnagl, Nico;Heitmann, Volker;Burmester, Ulrich
    • 한국표면공학회:학술대회논문집
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    • 한국표면공학회 2012년도 추계총회 및 학술대회 논문집
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    • pp.7-11
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    • 2012
  • Plasma electrolytic oxidation of magnesium alloys is a well known technique to produce corrosion and wear resistant coatings. The addition of particles to the electrolyte provides a possibility to produce coatings with an increasing range of composition by in-situ incorporation of those particles into the coating. An extensive literature review has revealed that the mode of incorporation depends mainly on the melting point of the used particles and the energy provided by the discharges of the PEO process. The spectrum ranges from inert to partly reactive incorporation, but a complete reactive incorporation and a formation of a new single phase coating was not observed so far. Thus a new approach in PEO processing is introduced using specific particles as a kind of sintering additive, changing not only the composition but lowering the melting temperature and increase the liquid phase fraction during the discharges, resulting in a new amorphous coating.

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Carbon Assimilation and Respiration of Daphnia magna with Varying Algal Food Quality

  • Park, Sang-Kyu;Goldman Charles R.
    • Journal of Ecology and Environment
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    • 제29권5호
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    • pp.433-438
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    • 2006
  • To elucidate the mechanisms by which algal food quality affect Daphnia growths, we measured carbon incorporation rates and respiration rates of Daphnia magna with Cryptomonad Rhodomonas minuta, green algae Scenedesmus acutus and cyanobacteria Synechococcus sp. with varying physiological states as food. Carbon assimilation rates were high with R. minuta and S. acutus and low with Synechococcus sp. showing a similar pattern to the growth rate pattern. There was no clear difference among respiration rates of three algal species. Carbon assimilation rates and respiration rates of D. magna appeared to be independent on Molar C:P ratios in algal foods. Carbon growth efficiencies (incorporated carbon per assimilated carbon amount) were lower when D. magna fed with Synechococcus sp. than fed with R. minuta or S. acutus. Analysis of variance results show that carbon assimilation rates which were sum of incorporation and respiration rates and carbon growth efficiencies were only dependant on species affiliation. Overall, our results showed that algal species with varying ${\omega}3$ polyunsaturated fatty acid content led different carbon incorporation rates and overall carbon assimilation rates of D. magna.

Physicochemical Characteristics and Antioxidant Capacity of Rice Cake (Sulgitteok) Supplemented with Lyophilized Sedum sarmentosum (Dolnamul) Powder

  • Kim, Seung-Mi;Lee, Myung-Ho;Yang, Sun-A;Choi, Young-Sim;JeGal, Sung-A;Sung, Chang-Keun;Mo, Eun-Kyoung
    • Preventive Nutrition and Food Science
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    • 제17권2호
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    • pp.152-157
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    • 2012
  • This study was performed to increase the availability of Sedum sarmentosum (Dolnamul) and to improve the nutraceutical value of rice cakes (sulgitteok). The contents of crude protein, mineral, dietary fiber, water holding capacity, and hardness significantly and directly increased with lyophilized sedum powder (SP). Pore ratio and expansion rate decreased in samples containing more than 10% SP compared to the control. In a sensory evaluation, a positive correlation was detected between overall acceptability and taste ($R^2$=0.99, p<0.01), and color ($R^2$=0.72, p<0.05). Total polyphenol contents of the SP-treated groups were significantly elevated, accompanied by an increase in radical scavenging ability estimated by the 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay. Replacing 10% of the rice powder with SP efficiently improved the antioxidant and nutritional values of sulgitteok as well as its the sensory quality.

Inhibitory Effect of Kale Juice on the Growth and DNA Incorporation of Human Cancer Cells

  • Lee, Seon-Mi;Park, Kun-Young
    • Preventive Nutrition and Food Science
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    • 제2권2호
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    • pp.167-173
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    • 1997
  • The inhibitory effects of kale juice on the growh and DNA incorporation of human cancer cells, using HT-29 colon cancer cells, MG-63 osteosarcoma cells, AGS gastric adenocarcinoma cells and K-562 leukemia cells, were studied. The growth of human cancer cells were inhibited in the presence of kale juice (10, 20 nd 40$\mu$l/ml) and the effects were the juice concentration- and incubation time-dependent up to 6 days. When 20$\mu$l/ml of kale juice was added to the media of HT-29, MG-63, AGS and K-562 cancer cells, the cell growth after 6 or 4 days of incubation was retarded by 83~95% of control group. Morphological changes of HT-29 colon cancer cells wre studied under inverted microscope. As the concentration of kale juice increased up to 20$\mu$l/ml, degree of cell aggregation was decreased. Moreover, the DNA incorporation o AGS gastric adenocarcinoma cells and MG-63 osteosarcoma cells which were labeled with [$^3$H] thymidine was significantly reduced after 2 days of incubation at 37$^{\circ}C$ with kale juice. Therefore, we concluded that kale juice strongly decreased the growth of various human cancer cells.

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