• Title/Summary/Keyword: Inp

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A methodology for the identification of the postulated initiating events of the Molten Salt Fast Reactor

  • Gerardin, Delphine;Uggenti, Anna Chiara;Beils, Stephane;Carpignano, Andrea;Dulla, Sandra;Merle, Elsa;Heuer, Daniel;Laureau, Axel;Allibert, Michel
    • Nuclear Engineering and Technology
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    • v.51 no.4
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    • pp.1024-1031
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    • 2019
  • The Molten Salt Fast Reactor (MSFR) with its liquid circulating fuel and its fast neutron spectrum calls for a new safety approach including technological neutral methodologies and analysis tools adapted to early design phases. In the frame of the Horizon2020 program SAMOFAR (Safety Assessment of the Molten Salt Fast Reactor) a safety approach suitable for Molten Salt Reactors is being developed and applied to the MSFR. After a description of the MSFR reference design, this paper focuses on the identification of the Postulated Initiating Events (PIEs), which is a core part of the global assessment methodology. To fulfil this task, the Functional Failure Mode and Effect Analysis (FFMEA) and the Master Logic Diagram (MLD) are selected and employed separately in order to be as exhaustive as possible in the identification of the initiating events of the system. Finally, an extract of the list of PIEs, selected as the most representative events resulting from the implementation of both methods, is presented to illustrate the methodology and some of the outcomes of the methods are compared in order to highlight symbioses and differences between the MLD and the FFMEA.

Display of green fluorescent protein (GFP) on the cell surface of Zymomonas mobilis using N-terminal domain of ice nucleation protein (빙핵활성단백질의 N-terminal 부분을 이용한 녹색형광단백질의 Zymomonas mobilis 세포 표면 발현)

  • Lee, Eun-Mo;Choi, Shin-Geon
    • Journal of Industrial Technology
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    • v.29 no.B
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    • pp.115-119
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    • 2009
  • Green fluorescent protein (GFPuv) was displayed on the surface of ethanol-producing bacteria Zymomonas mobilis using N-terminal domain of ice nucleation protein (INP) as an anchoring motif. To evaluate the ice nucleation protein as plausible anchor motif in Z. mobilis, GFPuv gene was subcloned into Zymomonas expression vector yielding pBBR1MCS-3/pPDC/INPN/GFPuv plasmid., INP-GFPuv fusion protein was expressed in Z. mobilis and its fluorescence was verified by confocal microscopy. The successful display of GFPuv on Zymomonas mobilis suggest that INP anchor motif could be used for future fusion partner in Z. mobilis strain improvement.

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Effects of Dietary Inuloprebiotics on Egg Production and on the Microbial Ecology and Blood Lipid Profile of Laying Hens (이눌로프리바이오틱스의 급여가 산란계의 혈액지질, 맹장 미생물, 계란 생산성에 미치는 효과)

  • Park, Sang-Oh;Park, Byung-Sung
    • Journal of Life Science
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    • v.22 no.7
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    • pp.880-888
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    • 2012
  • This study was carried out to investigate the effects of inuloprebiotics (INPs), an alternative antibacterial growth promotor, from Jerusalem artichoke extract (Helianthus tuberosus L.) on egg production and quality in Hyline brown laying hens. The hens were divided randomly into four treatment groups and housed in individual cages for 10 weeks: a control group (0 ppm INP) (T1), 450 ppm (T2), 600 ppm (T3), and 750 ppm (T4). Egg production, egg weight, Haugh unit, eggshell thickness, and breaking strength were significantly higher in all of the INP-treated groups compared with the control (p<0.05). Egg cholesterol was highest in the T1 group and decreased with INP addition from 15.04 to 17.98% (p<0.05). Compared with the T1 group, triglycerides in the blood and in total cholesterol decreased significantly in groups T2, T3, and T4 by 21.71-24.07% and 27.17-30.36%, respectively (p<0.05). The growth of cecum Bifidobacterium and Lactobacillus was stimulated in groups T2, T3, and T4 compared with T1, whereas the growth of Escherichia and Salmonella was clearly inhibited (p<0.05). The results suggest that the addition of 450 ppm INP to the diet of laying hens can improve egg production and egg quality.

Determination of the elastic properties in CFRP composites: comparison of different approaches based on tensile tests and ultrasonic characterization

  • Munoz, Victor;Perrin, Marianne;Pastor, Marie-Laetitia;Welemane, Helene;Cantarel, Arthur;Karama, Moussa
    • Advances in aircraft and spacecraft science
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    • v.2 no.3
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    • pp.249-261
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    • 2015
  • The mechanical characterization of composite materials is nowadays a major interest due to their increasing use in the aeronautic industry. The design of most of these materials is based on their stiffness, which is mainly obtained by means of tensile tests with strain gauge measurement. For thin laminated composites, this classical method requires adequate samples with specific orientation and does not provide all the independent elastic constants. Regarding ultrasonic characterization, especially immersion technique, only one specimen is needed and the entire determination of the stiffness tensor is possible. This paper presents a study of different methods to determine the mechanical properties of transversely isotropic carbon fibre composite materials (gauge and correlation strain measurement during tensile tests, ultrasonic immersion technique). Results are compared to ISO standards and manufacturer data to evaluate the accuracy of these techniques.

Onboard dynamic RGB-D simultaneous localization and mapping for mobile robot navigation

  • Canovas, Bruce;Negre, Amaury;Rombaut, Michele
    • ETRI Journal
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    • v.43 no.4
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    • pp.617-629
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    • 2021
  • Although the actual visual simultaneous localization and mapping (SLAM) algorithms provide highly accurate tracking and mapping, most algorithms are too heavy to run live on embedded devices. In addition, the maps they produce are often unsuitable for path planning. To mitigate these issues, we propose a completely closed-loop online dense RGB-D SLAM algorithm targeting autonomous indoor mobile robot navigation tasks. The proposed algorithm runs live on an NVIDIA Jetson board embedded on a two-wheel differential-drive robot. It exhibits lightweight three-dimensional mapping, room-scale consistency, accurate pose tracking, and robustness to moving objects. Further, we introduce a navigation strategy based on the proposed algorithm. Experimental results demonstrate the robustness of the proposed SLAM algorithm, its computational efficiency, and its benefits for on-the-fly navigation while mapping.

Effect of Space Order on New Product Adoption: Moderated by Product Newness (공간 정리가 소비자의 신제품 수용 의도에 미치는 영향: 제품의 새로움의 조절 효과)

  • Zhou, Xiaobin;Joo, Jaewoo
    • Journal of Distribution Science
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    • v.17 no.2
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    • pp.71-76
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    • 2019
  • Purpose - People have long thought that disorderly space would influence their lives negatively. However, disorderly space may have positive impact such as increasing sales for new products for store managers. Borrowing the prior findings that disorderly space enhances creativity, we developed two hypotheses regarding space order, product newness, and new product adoption. We hypothesize that space order negatively influences new product adoption and that the proposed negative effect of space order on new product adoption is moderated by product newness. Research design, data, and methodology - We conducted a pre-test in China using 70 undergraduate students to test whether two newly developed cosmetic products were appropriate for the experimental stimuli. We confirmed that a fragrance patch concept, which is unavailable in the market, is a RNP (Really New Product), and an edible fragrance, which is available in the market, is an INP (Incrementally New Product). Next, we conducted a main experiment with a 2 (Space order: orderly vs. disorderly) × 2 (Product newness: RNP vs. INP) between-subjects design in China using 100 undergraduate students. Half of the participants answered questions on the disorderly desk and the other half answered questions on the orderly desk. Results - We obtained evidence from the main experiment that consumers' new product adoption is the function of space order and product newness. First, participants were more likely to adopt the RNP when they were in the disorderly space than in the orderly space. However, the effect of space order on new product adoption disappeared when the product was INP; the adoption rates for the INP did not differ between the participants who answered questions on the disorderly desk and the participants who did so on the orderly desk. Conclusions - Our findings are counter intuitive. Contrary to the conventional wisdom that neat and tidy space benefits store managers, the research demonstrated that disorderly space increases sales, providing fresh insights into store managers to manage their stores and shops to sell new products. In order to help store visitors understand the value of really new products, store managers will have to sacrifice space order to some extent.

Estimating an Incheon New Ports' allotment rate for metropolitan cargo using Logit Model - Focusing on a trans pacific route - (Logit모형을 이용한 인천 신항의 수도권 화물 분담률 추정에 관한 연구 - 미주항로를 중심으로 -)

  • Lee, Yun Chan;Lee, Taehwee;Yeo, Gitae
    • Journal of Korea Port Economic Association
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    • v.30 no.1
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    • pp.143-157
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    • 2014
  • Most metropolitan shippers (MS) have used trans pacific route (TPR) or Asia-Europe route (AEP) through Busan port (BP). If Incheon new port (INP) sets up the deep water-depths under -16m, however, there might be a change in MS's port choice behavior (PCB). In this respect, the aim of this paper is to estimate an INP's allotment rate for metropolitan cargo using Logit Model (LM) considering changing global shipping and port environment. This paper reviews previous studies related to shippers' PCB then sets up the utility function (UF) including the dummied dependent variable which is comprised of BP and INP, and some independent variables such as the frequency of liner shipping route (TPR), inland transportation fare, and the rate of container terminal service. As a result of LM analysis, BP has 0.6618 and INP has 0,3382.

Observation and Characteristics of Ozonizer using Injection Needle Electrode (주사바늘 전극형 오존발생기 특성 연구)

  • Park, Hyun-Mi;Kwon, Young-Hak;Park, Won-Zoo
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.29 no.12
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    • pp.77-82
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    • 2015
  • Ozone is a powerful disinfectant and oxidizing agent, and it is used in a wide range of applications, such as waste water treatment, food processing, etc.. There is also a great potential of using ozone in new emerging medical applications, such as ozone dentistry and ozone oxygen therapy. For these purposes, simple, small, compact and efficient sources of ozone are needed. In this study, in order to increase the current-voltage range of the discharge and to avoid the overheating of the gas in the ozonizer we suggested ozonizer of injection needle and plate electrode type(INP Type) with the gas through the needle. A ozonizer of INP type have been investigated by focusing on ozone concentration and yield according to flow rates and Gap of two electrodes. The results of studies of ozone production for DC corona discharge in oxygen at atmospheric pressure about the ozonizer of INP type. The ozone concentration and the generation yield increased as the gap of two electrodes and gas flow were decreased. Also, when the gap of two electrodes and gas flow with no change, the ozone concentration and generation yield each have variation of direct proportion and inverse proportion with discharge voltage.