• Title/Summary/Keyword: Ipsa

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Responses of Pea Varieties to Rhizobium Inoculation: Nitrogenase Activity, Dry Matter Production and Nitrogen Uptake

  • Solaiman, A.R.M.;Khondaker, M.;Karim, A.J.M.S.;Hossain, M.M.
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.48 no.5
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    • pp.361-368
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    • 2003
  • The responses of five varieties and three cultivars of pea (Pisum sativum) to Rhizobium inoculation on nodulation, growth, nitrogenase activity, dry matter production and N uptake were investigated. The pea varieties were IPSA Motorshuti-l, IPSA Motorshuti-2, IPSA Motorshuti-3, BARI Motorshuti-l, BARI Motorshuti-2 and the cultivars were 063, Local small and Local white. Fifty percent seeds of each pea variety/cultivar were inoculated with a mixture of Rhizobium inoculants at rate of 15g/kg seed and the remaining fifty percent seeds were kept uninoculated. The plants inoculated with Rhizobium inoculant significantly increased nodulation, growth, nitrogenase activity, dry matter production and N uptake. Among the varieties/cultivars, BARI Motorshuti-l performed best in almost all parameters including nitrogenase activity of root nodule bacteria of the crop. There were positive correlations among the number and dry weight of nodules (r=$0.987^{**}$, $0.909^{**}$), nitrogenase activity of root nodule bacteria (r=$0.944^{**}$, $0.882^{**}$), dry weight of shoot (r=$0.787^{**}$, $0.952^{**}$), N content (r=$0.594^{**}$, $0.605^{**}$) and N uptake (r=$0.784^{**}$, $0.922^{**}$) by shoot both at flowering and pod filling stages of the crop, respectively. It was concluded that BARI Motorshuti-l in symbiotic association with Rhizobium inoculant performed best in recording nitrogenase activity, dry matter production and N uptake by pea.

Detection of Mechanical Imbalances of Induction Motors with Instantaneous Power Signature Analysis

  • Kucuker, Ahmet;Bayrak, Mehmet
    • Journal of Electrical Engineering and Technology
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    • v.8 no.5
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    • pp.1116-1121
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    • 2013
  • Mechanical imbalances are common mechanical faults in induction motors. Vibration monitoring techniques have been widely used for the diagnosis of mechanical faults in induction motors, but electrical detection methods have been preferred in recent years. For many years, researchers have concentrated on the Motor Current Signature Analysis (MCSA). This paper examines the effect of mechanical imbalances to induction machine electrical parameters. Instantaneous Power Signature Analysis (IPSA) technique used to detect these faults. In the paper, a full analysis of the proposed technique is presented, and experimental results for healthy and faulty motors have been shown and discussed.

Effects of Rhizobium Inoculant, Compost, and Nitrogen on Nodulation, Growth, and Yield of Pea

  • Solaiman, A.R.M.;Rabbani, M.G.
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.51 no.6
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    • pp.534-538
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    • 2006
  • The effects of Rhizobium inoculant, compost, and nitrogen on nodulation, growth, dry matter production, yield attributes, and yield of pea (Pisum sativum) var, IPSA Motorshuti-3 were assessed by a field experiment. Among the treatments Rhizobium inoculant alone performed best in recording number and dry weight of nodules/plant. The highest green seed yield of 8.38 ton/ha (36.9% increase over control) and mature seed yield of 2.97 ton/ha (73.7% increase over control) were obtained by the application of 90 kg N/ha. The effects of 60 kg N/ha, Rhizobium inoculant alone and Rhizobium inoculant along with 5 ton compost/ha were same as the effect of 90 kg N/ha in recording plant height, root length, dry weight of shoot, and root both at preflowering and pod filling stages, number of mature pods/plant, number of mature seeds/pod, 1000-seed weight, green, and mature seed yields of pea.

Soil-structure interaction effects on the seismic response of multistory frame structure

  • Botic, Amina;Hadzalic, Emina;Balic, Anis
    • Coupled systems mechanics
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    • v.11 no.5
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    • pp.373-387
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    • 2022
  • In this paper,soil-structure interaction effects on the seismic response of multistory frame structure on raft foundation are numerically analyzed. The foundation soil profile is assumed to consists of a clay layer of variable thicknessresting on bedrock. Amodified plane-strain numerical model isformed in the software Plaxis, and both free vibration analysis, and earthquake analysis for a selected ground motion accelerogram are performed. The behavior of the structure is assumed to be linear elastic with Rayleigh viscous damping included. The behavior of the clay layer is modeled with a Hardening soil model with small strain stiffness. The computed results in terms of fundamental period and structural horizontal displacementsfor the case of fixed base and for different thicknesses of clay layer are presented, compared, and discussed.

Simulation of Energy Conversion Characteristics of OMACON LM-MHD Systems (OMACON형 LM-MHD 시스템에서의 에너지전환특성 시뮬레이션)

  • 김창녕
    • Journal of the Korea Society for Simulation
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    • v.6 no.2
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    • pp.1-14
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    • 1997
  • The characteristics of the flow and energy conversion in OMACON liquid-metal MHD system are investigated. Numerical simulation of two-phase flow in the OMACON system without magnetic field was carried out by the Phoenics code and the energy conversion characteristics are studied in association with the fact that the mechanical energy loss at the nozzle of the OMACON system are to be converted into electrical energy. In this system, working fluid (gas) is injected through the mixer located at the bottom of the riser, and is mixed with hot liquid metal. Therefore in the riser two-phase flow is developed under the influence of the gravity. In this study, the interaction between the gas and liquid is considered by the use of IPSA(InterPhase Slip Algorithm) where standard drag coefficient has been used. It has been assumed that in the flow regime the liquid is continuous and the gas is dispersed. For the liquid and gas, the continuity equations, momentum equations and energy equations are solved respectively in association with void fraction in the flow field. In order to calculate the energy conversion efficiency, firstly the ratio of the mechanical energy loss of liquid metal flow at the nozzle to the input thermal energy is considered. Secondly flow pattern of liquid metal in the generator has been analyzed, and the characteristics of the conversion of the mechanical energy into the electrical energy has been investigated. For an representative case where Hartmann number is 540 and magnetic field is 0.35 T, the present analysis shows that the energy conversion efficiency is 0.653. This result is considered to be reasonable in comparison with published experimental results.

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Effects of Rhizobium Inoculant, Nitrogen, Phosphorus, and Molybdenum on Nodulation, Yield, and Seed Protein in Pea

  • Rabbani M. G.;Solaiman A. R. M.;Hossain K. M.;Hossain T.
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.50 no.2
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    • pp.112-119
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    • 2005
  • The effects of Rhizobium inoculant, nitrogen, phosphorus, and molybdenum on nodulation, dry matter production, yield attributes, pod and seed yields, protein and phosphorus contents in seed of pea (pisum sativum) var. IPSA Motorshuti-3 were assessed by a field experiment. Among the treatments Rhizobium inoculant in combination with 25kg P and 1.5kg Mo/ha performed best in recording number of nodules/plant, total dry matter yield, number of pods/plant, number of seeds/pod, 1000-seed weight, green pod yield, green and mature seed yields of pea. The highest green pod yield of 15.37 t/ha ($97.05\%$ increase over control) and green seed yield of 9.6t/ha ($69.31\%$ increase over control) were obtained by inoculating pea with Rhizobium inoculant in association with 25kg P and 1.5 Mo/ha. The effects of 60 or 120kg N/ha were comparable to Rhizobium inoculant in most cases. There were positive correlations among yield attributes, yield, protein and phosphorus contents in seeds of pea. From the viewpoint of yield attributes, yield, and seed quality, application of Rhizobium inoculant along with 25kg P and 1.5kg Mo/ha was considered to be the balanced combination of nutrients for achieving the maximum output from cultivation of pea in Shallow-Red Brown Terrace Soil of Bangladesh.

A Study on Comparative Analysis of Inlay Craft Technique of Relic in the Three Kingdom Period (삼국시대의 유물에 나타난 입사공예기법 비교분석 연구)

  • Park, Ji-Won;Park, Seung-Chul
    • Journal of Digital Convergence
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    • v.12 no.11
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    • pp.505-513
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    • 2014
  • Modern metal craft is losing our tradition and personality with simple expressive methods and limited techniques without artistry with the purpose of mass production. In order for development of modern metal craft and to succeed our unique culture, there is a need to consider traditional craft techniques that have been delivered since the ancient. Inlay craft requires high concentration and technology, and it is typical traditional metal craft techniques that show contemporary culture and ideas well. the period of the Three States was the time when inlay technique was introduced the first, and it can be seen in Baekje, Gaya and Silla. Furthermore, when inlay craft is applied for modern metal craft, a possibility was found to grant artistic expression and historical value of our unique artistic expression and historical value. For this purpose, it is expected to establish development of modern metal craft and our unique individuality firmly when continuously seeking practical measures that can accept contemporary crafts and expanding opportunities of education to learn traditional techniques.

Legal issues on HAI (병원감염에서의 법적쟁점)

  • Lee, Soo kyoung;Yoon, Seok chan
    • The Korean Society of Law and Medicine
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    • v.20 no.1
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    • pp.133-162
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    • 2019
  • Due to the nature of medical malpractice lawsuits, it is difficult for medical consumers, who are weak in getting information when it comes to health care problem, to secure all information inside the hospital. Even if you are confident about the hospital infection, it is true that people have difficult to obtain medical testimony by expert. It is seen as no easy task to testify to the malpractice of colleagues who work in the same field not only in our country but also abroad, when a doctor gives negative testimony to another doctor in a medical malpractice lawsuit. Although few health care providers will be motivated to take medical care from the outset, testimony or statements from a medical practitioner can have a significant impact on the outcome of a lawsuit, as it is impossible for the patient to control or be aware of the whole process of medical conduct, especially in the event of a hospital infection and the victim. If the hospital can prove the causality of damages caused by negligence of the employees or supervision of the hospital itself in a medical suit caused by the infection, the level of protection of the victim could be raised further. We sought to find a solution to these problems by looking at the provisions of other laws related to hospital infection. In particular, as the comparative legal review regarding hospital infection, Germany's legislative precedent sets a medical contract as a typical civil law contract, so it is thought that looking at German civil law regulations also has implications for Korean law. We also tried to improve the French Special Act 'rights of patients' and we can look at the consequent changes in court cases. Finally, the content of the U.S. case's and the theory of 'the doctrine of res ipsa loquitur' in relation to it show that doctors and hospitals have been forced to shift the burden of proof through this theory. This paper tried to find out the implications of mitigating the burden of proof by reviewing various issues that might be related to medical litigation of hospital infection from a comparative point of view.

An Investigation of Insect Pest and Maximum Occurrence Period of Key Pest Insect on Stored Rice Grains (미곡저장해충의 분류동정 및 주요저장해충의 발생최성기 조사 연구 -전남지방중심-)

  • 김규진;김선곤;최현순
    • Korean journal of applied entomology
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    • v.27 no.2
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    • pp.117-124
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    • 1988
  • An Investigation of insect pests in rice stored was carried out in Jeonnam region of Korea. The total of 2 class, 7 orders 16 families and 25 species were recorded in Lepidoptera; 8, Coleoptera; 11, Orthoptera; 1, Thysanura 1, blattaria; 2, Hymenoptera; 1 and mites; 2 spe-cies. The important species among them were Sitotroga cerealella, Ephestia cautella, Paral-ipsa gularis, Poldia, in Lepidoptera, and Sitophilus orzae, Oryzaephilus surianmensis, Cryptolestes ferrugineus, Tribolium castaneum, Tenebroides mauritanicus, Attagenus japonicus, in Coleoptera and Blatella germanica, in Blattaria and Acarus siro Petrobia latens, in mites. The duration of maximum occurrence were the late June to mid July for Sitotroga cerealella, the mod July to early August for Oryzaephilus surianmensis the mid July to August for Tribolium castaneum, the early July to late July for Sitophilus orzae, the mid June to early July for Attagenus japonicus the mid June to late Spetember for Blatella germanica and the late April to late May for Acarus siro and Petrobia latens, respectively in investigation, Blatella germanica(Blattaria) which was no problem in stored rice insect till now was mainly distributed a coastal plain and period of occurrence was long amount of occurrence was great. Rice weevil has 4 generations under natural conditions and the peak of 1st perood time was ranged from middle of jun. to last decade of Jun., 2nd period was from the lats decade of Jul. to first decade of Aug., 3rd period was from middle of Sep. to late Sep., 4th period was middle of Oct. to early Nov.

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