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Статті в журналах з теми "Multi-circulation"

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Автор: Grafiati

Опубліковано: 10 грудня 2022

Оновлено: 28 січня 2023

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1

Nakajima, Kenichi, Mitsutaka Matsumoto, Hideyuki Murakami, Masao Hayakawa, Yasunari Matsuno, and Wataru Takayanagi. "Development of multi-value circulation based on remanufacturing." Matériaux & Techniques 107, no. 1 (2019): 103. http://dx.doi.org/10.1051/mattech/2018057.

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Анотація:

Remanufacturing is an industrial process that turns used products into new ones with the same quality, functionality, and warranty as new products; it is a critical element for realizing a resource-efficient manufacturing industry and a circular economy. Remanufacturing may involve adding new and better functionality to used products, such as adding more wear-resistant materials to the surface or new sensor systems. Remanufacturing has been undertaken for products such as: automobile parts, machinery, photocopiers, single-use cameras, furniture, and turbine components, etc. It is generally superior to material recycling in terms of energy and material savings. Our project aims to develop technologies necessary for the promotion of remanufacturing and to establish a cooperative network related to remanufacturing. As technical development items, our aim is to develop methods to assess the reliability of parts/components, develop technologies to restore deteriorated metal surfaces of used products, introduce production management methods for remanufacturing, and design a circulation system to retain the added values of products. In this paper, we introduce an outline of the project and present some preliminary results. This paper shows the possibility to quantitatively evaluate the carbide distribution (size and density) of the carburized surface of a gear, and also shows the potential to repair materials exposed to a high-temperature oxidative atmosphere by Pr-Ir coating technology.

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2

Ohashi, Kyoko, Guoqi Han, Nancy Chen, and Jim Helbig. "Northwest Atlantic Surface Circulation from Multi-Satellite Observations." Atmosphere-Ocean 51, no. 1 (November 29, 2012): 35–49. http://dx.doi.org/10.1080/07055900.2012.747951.

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3

de Pater, Imke, Leigh N. Fletcher, Statia Luszcz-Cook, David DeBoer, Bryan Butler, Heidi B. Hammel, Michael L. Sitko, Glenn Orton, and Philip S. Marcus. "Neptune’s global circulation deduced from multi-wavelength observations." Icarus 237 (July 2014): 211–38. http://dx.doi.org/10.1016/j.icarus.2014.02.030.

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4

Halada, Kohmei. "Activities of Circular Economy in Japan - Towards Global Multi-Value Circulation –." International Journal of Automation Technology 14, no. 6 (November 5, 2020): 867–72. http://dx.doi.org/10.20965/ijat.2020.p0867.

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Анотація:

“The Forum of Global Multi-Value Circulation” is the name of forum on Circular Economy in Japan. This forum was launched at June 2018 to discuss and exchange the information on the movement towards the circular economy. Companies that handles production, supply, distribution, and circulation in Japan join the Forum of Global Multi-Value Circulation. In addition, leading universities and national research institutes also join it. The first part of this paper introduces the concept of Global Multi-Value Circulation. In addition, as results of the discussion of the forum, the focus of attention in the concept of Circular Economy are reviewed. The importance of resource efficiency through the boundary between the Eco-sphere and the Techno-sphere, along with retained value, servicizing and platform, has been insisted.

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5

Ly, Le Ngoc, and Phu Luong. "Numerical multi-block grids in coastal ocean circulation modeling." Applied Mathematical Modelling 23, no. 11 (November 1999): 865–79. http://dx.doi.org/10.1016/s0307-904x(99)00011-6.

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6

Quintard, J. M., A. Bouju, S. Kollen, F. Thevenot, and P. Colmaire. "Circulation extra-corporelle et prélèvement multi-organe : présent-avenir ?" ITBM-RBM 27 (December 2006): S22—S23. http://dx.doi.org/10.1016/s1297-9562(06)80007-0.

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7

Quintanar, Nicolas R., Thien Nguyen, Rodolfo Vaghetto, and Yassin A. Hassan. "Natural circulation flow distribution within a multi-branch manifold." International Journal of Heat and Mass Transfer 135 (June 2019): 1–15. http://dx.doi.org/10.1016/j.ijheatmasstransfer.2019.01.102.

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8

Power, Scott, and Rob Colman. "Multi-year predictability in a coupled general circulation model." Climate Dynamics 26, no. 2-3 (December 20, 2005): 247–72. http://dx.doi.org/10.1007/s00382-005-0055-y.

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9

Zhang, You, Chang Sheng Peng, and Feng Min Li. "Study on Optimal Circulation Dynamic System and Feasibility Analysis for a Solar Biogas Digester." Applied Mechanics and Materials 164 (April 2012): 482–86. http://dx.doi.org/10.4028/www.scientific.net/amm.164.482.

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According to biogas digester heated by circulation of water heated by solar cell, three modes of hot water circulation dynamic system (one-stage cycle, multi-stage cycle, and continuous cycle) were proposed to reduce operating costs and optimize the operation. The results obtained showed that multi-stage cycle had a clear advantage in improving operating efficiency, the heat transfer of which was 41.57KJ, much higher than 7.21KJ of one-stage cycle and 2.20KJ of continuous cycle. A model was built to simulate the overall process of heat dissipation in comparison with what was obtained from the conventional experiments. Both the simulation and the experimental measurement data showed that multi-stage circulation dynamic system operated well.

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10

Zhao, Yibo, Shifen Cheng, and Feng Lu. "Seasonal Characteristics of Agricultural Product Circulation Network: A Case Study in Beijing, China." Agronomy 12, no. 11 (November 12, 2022): 2827. http://dx.doi.org/10.3390/agronomy12112827.

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Agricultural product circulation is an appropriate way to optimize the distribution of agricultural resources and maintain food safety. The seasonality of agriculture leads to seasonal variations in agricultural product circulation. Previous studies constructed origin–destination networks based on annual statistics to investigate the static structure of agricultural product circulation networks from a single view, failing to capture the seasonal and multi-dimensional characteristics in agricultural product circulation. This study presents a multi-view analytical framework used to investigate the seasonal characteristics of an agricultural product circulation network. First, agricultural product circulation networks in different seasons were constructed with mass freight trajectory data through trajectory mining technology. Then, the seasonal characteristics of agricultural product circulation were, respectively, analyzed from a macro-view (networks), meso-view (edges) and micro-view (nodes). A case study was conducted in Beijing, China. It is argued that: (1) The presented method for extracting agricultural trip chains based on massive freight trajectories is feasible for the construction of agricultural product circulation networks. (2) The agricultural product circulation networks in four seasons exhibit an obvious hierarchical and radial structure. South China has a higher network density in winter and spring, whereas northeast and northwest China are the opposite. (3) A total of 80% of the linkage strength is concentrated, on average, in 35.3% of city-pairs in four seasons, where the agglomeration effect and hub status of the linking cities is more prominent in summer and autumn. (4) A total of 316 cities form Beijing agricultural product circulation networks, 48.1% of which are mainly served by Beijing agricultural product circulation in winter and spring, which is 2.7 times more than cities served in summer and autumn. These findings extend the scientific understanding of the agricultural product supply chain from a dynamic and multi-dimensional view, which provides essential information for optimizing sustainable agri-food systems and ensuring food security.

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11

Satoh, T., S. Sugiura, K. Shin, R. Onuki-Nagasaki, S. Ishida, K. Kikuchi, M. Kakiki, and T. Kanamori. "A multi-throughput multi-organ-on-a-chip system on a plate formatted pneumatic pressure-driven medium circulation platform." Lab on a Chip 18, no. 1 (2018): 115–25. http://dx.doi.org/10.1039/c7lc00952f.

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12

Nowosad, Jakub, and Alfred Stach. "RELATION BETWEEN EXTENSIVE EXTREME PRECIPITATION IN POLAND AND ATMOSPHERIC CIRCULATION." Quaestiones Geographicae 33, no. 1 (March 1, 2014): 115–29. http://dx.doi.org/10.2478/quageo-2014-0005.

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Abstract The basic aim of this study was to find relations between the dates of occurrence and characteristics of extensive extreme daily (24-h) precipitation totals (EEDPTs) and pressure systems. The analysis was conducted on the basis of precipitation data from the multi-year period 1956-1980 and the Grosswetterlagen classification of circulation situations. EEDPTs were taken to embrace those cases of maximum annual daily precipitation totals that were registered on the same day at a minimum of 75 precipitation stations. In the years 1956-1980 there were 209 such events. The hypothesis about the effect of a circulation situation on the probability of occurrence of an EEDPT was verified in quantitative terms, the reference being both the entire multi-year period and the seasonal variation in the occurrence of precipitation of this type. Next, circulation situations were compared in terms of amount-related parameters of EEDPTs (mean precipitation, coefficient of variation), their spatial features (perimeter, area), and precipitation volume. The analyses performed show a statistically significant dependence between the atmospheric circulation and extensive extreme precipitation. It was demonstrated that there were circulation situations during which EEDPTs occurred much more often or much more rarely than over the entire multi-year period under study. Also identified was the connection of an atmospheric circulation with the mean amount, coefficient of variation and volume of extensive extreme precipitation.

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13

Satoh, T., G. Narazaki, R. Sugita, H. Kobayashi, S. Sugiura, and T. Kanamori. "A pneumatic pressure-driven multi-throughput microfluidic circulation culture system." Lab on a Chip 16, no. 12 (2016): 2339–48. http://dx.doi.org/10.1039/c6lc00361c.

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14

ZHOU, Tianjun. "Multi-spatial variability modes of the Atlantic Meridional Overturning Circulation." Chinese Science Bulletin 48, no. 25 (2004): 30. http://dx.doi.org/10.1360/03wd0453.

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15

Chen, Lei, Changqi Yan, and Jianjun Wang. "Multi-objective optimal design of vertical natural circulation steam generator." Progress in Nuclear Energy 68 (September 2013): 79–88. http://dx.doi.org/10.1016/j.pnucene.2013.05.005.

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16

ANTONOIU, GHEORGHE, and PRADIP K. SRIMANI. "SELF-STABILIZING DEPTH-FIRST MULTI-TOKEN CIRCULATION IN TREE NETWORKS." Parallel Algorithms and Applications 16, no. 1 (January 2001): 17–35. http://dx.doi.org/10.1080/01495730108935264.

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17

Bonanno, A., D. Elstner, G. Belvedere, and G. Rüdiger. "A flux-transport dynamo with a multi-cell meridional circulation." Astronomische Nachrichten 326, no. 3-4 (March 15, 2005): 170–73. http://dx.doi.org/10.1002/asna.200410372.

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18

Suginohara, Nobuo, and Masao Fukasawa. "Set-up of deep circulation in multi-level numerical models." Journal of the Oceanographical Society of Japan 44, no. 6 (December 1988): 315–36. http://dx.doi.org/10.1007/bf02302574.

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19

Xu, Xiaoyu. "Multi-System Urban Waste-Energy Self-Circulation: Design of Urban Self-Circulation System Based on Emergy Analysis." International Journal of Environmental Research and Public Health 18, no. 14 (July 15, 2021): 7538. http://dx.doi.org/10.3390/ijerph18147538.

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Анотація:

The current worldwide state of energy scarcity and low waste utilization has led to a decrease in the supply of ecological services, something that seriously affects the development of cities. In this study, we propose an urban self-circulation design based on multiple systems within the traditional biogas, wetland, rainwater, solar power, and urban farm systems framework to achieve effective improvements in urban waste utilization and the optimization of the urban waste–energy flow cycle. Emergy conversion is used to evaluate system optimization, and the simulation results show that the novel proposed system can effectively improve urban waste utilization with an energy output rate of 3.18 × 10, an environmental load of 4.27 × 10−2, and a sustainability index of 7.45 × 102 in the core system; additionally, it can improve resource utilization of small-scale cities with an energy output rate of 1.85 × 100, an environmental load of 1.20 × 100, and a sustainability index of 1.54 × 100 in the total system. The inter-system energy flow model can significantly optimize urban energy systems based on ecological models with low-emergy resource input, including biogas systems and urban farm systems. This model can reduce the environmental load and effectively compensate for the reduced supply capacity of ecosystem services caused by urbanization, making it suitable for extension to other small-scale built environments that are relatively independent and rich in natural resources.

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20

Jirout, Tomáš. "Pumping Capacity of Pitched Blade Multi-Stage Impellers." Chemical and Process Engineering 35, no. 1 (March 1, 2014): 47–53. http://dx.doi.org/10.2478/cpe-2014-0004.

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Анотація:

Abstract This paper extends knowledge about flow in an agitated batch with pitched blade multi-stage impellers. Effects of various geometrical parameters (blade number, distance between impellers) of pitched blade multi-stage impellers on pumping ability have been investigated. Axial velocity profiles were measured by LDA (Laser Doppler Anemometry). Axial pumping capacities were obtained by integration of measured axial velocity profiles in outflow from impellers. Main attention was focused on the effect of the distance between impellers in multi-stage configurations, on their pumping capacity and flow in the mixing bath in comparison with an independently operating pitched blade impeller with the same geometry. In case of a relatively close distance between impellers H3/d = 0.5 - 0.75, the multi-stage impeller creates only one circulation loop and the impellers itself behave identically as pumps in series. However for relative higher distance of impellers than H3/d = 1.25, the multi-stage impeller creates two separated circulation loops.

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21

Hu, Shijian, Xi Lu, Shihan Li, Fan Wang, Cong Guan, Dunxin Hu, Linchao Xin, and Jie Ma. "Multi-decadal trends in the tropical Pacific western boundary currents retrieved from historical hydrological observations." Science China Earth Sciences 64, no. 4 (February 10, 2021): 600–610. http://dx.doi.org/10.1007/s11430-020-9703-4.

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AbstractAs large-scale ocean circulation is a key regulator in the redistribution of oceanic energy, evaluating the multi-decadal trends in the western Pacific Ocean circulation under global warming is essential for not only understanding the basic physical processes but also predicting future climate change in the western Pacific. Employing the hydrological observations of World Ocean Atlas 2018 (WOA18) from 1955 to 2017, this study calculated the geostrophic currents, volume transport and multi-decadal trends for the North Equatorial Current (NEC), the North Equatorial Countercurrent (NECC), the Mindanao Current (MC), the Kuroshio Current (KC) in the origin and the New Guinea Coastal Undercurrent (NGCUC) within tropical western Pacific Ocean over multi-decades. Furthermore, this study examined the contributions of temperature and salinity variations. The results showed significant strengthening trends in NEC, MC and NGCUC over the past six decades, which is mainly contributed by temperature variations and consistent with the tendency in the dynamic height pattern. Zonal wind stress averaged over the western Pacific Ocean in the same latitude of each current represents the decadal variation and multi-decadal trends in corresponding ocean currents, indicating that the trade wind forcing plays an important role in the decadal trend in the tropical western Pacific circulation. Uncertainties in the observed hydrological data and trends in the currents over the tropical western Pacific are also discussed. Given that the WOA18 dataset covers most of the historical hydrological sampling data for the tropical western Pacific, this paper provides important observational information on the multi-decadal trend of the large-scale ocean circulation in the western Pacific.

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22

Shan, Shiliang, Jinyu Sheng, Keith Richard Thompson, and David Alexander Greenberg. "Simulating the three-dimensional circulation and hydrography of Halifax Harbour using a multi-nested coastal ocean circulation model." Ocean Dynamics 61, no. 7 (April 7, 2011): 951–76. http://dx.doi.org/10.1007/s10236-011-0398-3.

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23

OBATA, Fumio, Ryoji WAKA, Kazutake UEHARA, Katsunori ITO, and Yosuke KAWATA. "Circulation Characteristics of RH Degassing Vessel Water Model with Multi-legs." Tetsu-to-Hagane 86, no. 4 (2000): 225–30. http://dx.doi.org/10.2355/tetsutohagane1955.86.4_225.

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24

Shibayama, Tomoya, and Pun Kwok Leung. "Multi-Level Model for Hydrodynamic Circulation and Dispersion Process in Bays." Coastal Engineering in Japan 35, no. 1 (June 1992): 49–66. http://dx.doi.org/10.1080/05785634.1992.11924557.

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25

Zhu, Yaohua, Junchuan Sun, Yonggang Wang, Shujiang Li, Tengfei Xu, Zexun Wei, and Tangdong Qu. "Overview of the multi-layer circulation in the South China Sea." Progress in Oceanography 175 (July 2019): 171–82. http://dx.doi.org/10.1016/j.pocean.2019.04.001.

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26

Zhao, Hongxiao, Yajun Yin, and Zheng Zhong. "Arnold circulation and multi-optimal dynamic controlling mechanisms in dragonfly wings." Acta Mechanica Solida Sinica 26, no. 3 (June 2013): 237–44. http://dx.doi.org/10.1016/s0894-9166(13)60022-1.

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27

Yu, Wei, Tiefeng Wang, Malin Liu, and Zhanwen Wang. "Bubble circulation regimes in a multi-stage internal-loop airlift reactor." Chemical Engineering Journal 142, no. 3 (September 2008): 301–8. http://dx.doi.org/10.1016/j.cej.2008.02.024.

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28

Altuntas, Alper, and John Baugh. "Adaptive subdomain modeling: A multi-analysis technique for ocean circulation models." Ocean Modelling 115 (July 2017): 86–104. http://dx.doi.org/10.1016/j.ocemod.2017.05.009.

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29

Yerushalmi, Laleh, Mahmood Alimahmoodi, Farnaz Behzadian, and Catherine N. Mulligan. "Mixing characteristics and liquid circulation in a new multi-environment bioreactor." Bioprocess and Biosystems Engineering 36, no. 10 (October 20, 2012): 1339–52. http://dx.doi.org/10.1007/s00449-012-0836-8.

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30

Cheng, W., R. Bleck, and C. Rooth. "Multi-decadal thermohaline variability in an ocean–atmosphere general circulation model." Climate Dynamics 22, no. 6-7 (March 26, 2004): 573–90. http://dx.doi.org/10.1007/s00382-004-0400-6.

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31

ZHOU, Bo-Tao. "Multi-Model Projection of the Interannual Relationship Between Spring Hadley Circulation and East Asian Summer Circulation under Global Warming." Chinese Journal of Geophysics 55, no. 6 (November 2012): 607–16. http://dx.doi.org/10.1002/cjg2.1755.

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32

Rismani Yazdi, Saeed, Amir Shadmani, Sebastian C. Bürgel, Patrick M. Misun, Andreas Hierlemann, and Olivier Frey. "Adding the ‘heart’ to hanging drop networks for microphysiological multi-tissue experiments." Lab on a Chip 15, no. 21 (2015): 4138–47. http://dx.doi.org/10.1039/c5lc01000d.

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33

Park, Solji, Keunsoo Jeong, Eunjung Lee, Jae Hyuk Lee, Ji Young Yhee, Ajay Singh, Joonseok Koh, et al. "Amphiphilized poly(ethyleneimine) nanoparticles: a versatile multi-cargo carrier with enhanced tumor-homing efficiency and biocompatibility." Journal of Materials Chemistry B 3, no. 2 (2015): 198–206. http://dx.doi.org/10.1039/c4tb01255k.

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34

Núñez-Riboni, I., M. Bersch, H. Haak, J. H. Jungclaus, and K. Lohmann. "A multi-decadal meridional displacement of the Subpolar Front in the Newfoundland Basin." Ocean Science 8, no. 1 (February 15, 2012): 91–102. http://dx.doi.org/10.5194/os-8-91-2012.

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Abstract. Observations since the 1950s show a multi-decadal cycle of a meridional displacement of the Subpolar Front (SPF) in the Newfoundland Basin (NFB) in the North Atlantic. The SPF displacement is associated with corresponding variations in the path of the North Atlantic Current. We use the ocean general circulation model MPIOM with enhanced horizontal and vertical resolutions and forced with NCEP/NCAR reanalysis data to study the relation of the SPF displacement to atmospheric forcing, intensities of the subpolar gyre (SPG) and Meridional Overturning Circulation (MOC), and Labrador Sea Water (LSW) volume. The simulations indicate that the SPF displacement is associated with a circulation anomaly between the SPG and the subtropical gyre (STG), an inter-gyre gyre with a multi-decadal time scale. A sensitivity experiment indicates that both wind stress curl (WSC) and heat fluxes (which match LSW changes) contribute to the circulation anomalies in the frontal region and to the SPF displacement. An anticyclonic inter-gyre gyre is related to negative WSC and LSW anomalies and to a SPF north of its climatological position, indicating an expanding STG. A cyclonic inter-gyre gyre is related to positive WSC and LSW anomalies and a SPF south of its climatological position, indicating an expanding SPG. Therefore, the mean latitudinal position of the SPF in the NFB (a "SPF index") could be an indicator of the amount of LSW in the inter-gyre region. Spreading of LSW anomalies intensifies the MOC, suggesting our SPF index as predictor of the MOC intensity at multi-decadal time scales. The meridional displacement of the SPF has a pronounced influence on the meridional heat transport, both on its gyre and overturning components.

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35

Kumar, R., A. D. Contractor, A. Srivastava, H. G. Lele, and K. K. Vaze. "Steam drum level control studies of a natural circulation multi loop reactor." Kerntechnik 78, no. 6 (December 19, 2013): 503–11. http://dx.doi.org/10.3139/124.110359.

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36

SANJOU, Michio, Iehisa NEZU, and Takaya KOMATSU. "EXPERIMENTAL STUDY ON FORMATION PROPERTIES OF LANGMUIR CIRCULATION BY MULTI-CAMERA MEASUREMENTS." Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 67, no. 3 (2011): 121–32. http://dx.doi.org/10.2208/jscejhe.67.121.

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37

MAEDA, Takashi, Fuyou LIANG, Shu TAKAGI, and Marie OSHIMA. "B116 Development of Cerebral Circulation Model for Multi-Scale Blood Flow Simulation." Proceedings of the JSME Conference on Frontiers in Bioengineering 2011.22 (2011): 69–70. http://dx.doi.org/10.1299/jsmebiofro.2011.22.69.

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38

Krotov, A. D., S. V. Pankin, A. I. Surdo, V. V. Pankin, M. N. Sarychev, A. A. Schelkanov, and A. V. Zelenin. "Dynamic tests of multi-detector radiometric system on central blood circulation phantom." Journal of Physics: Conference Series 1115 (November 2018): 052038. http://dx.doi.org/10.1088/1742-6596/1115/5/052038.

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39

Shaji, C., N. Bahulayan, S. K. Dube, and A. D. Rao. "A multi-level adaptation model of circulation for the western Indian Ocean." International Journal for Numerical Methods in Fluids 31, no. 8 (December 30, 1999): 1221–64. http://dx.doi.org/10.1002/(sici)1097-0363(19991230)31:8<1221::aid-fld918>3.0.co;2-l.

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40

Ar, F. Figen, and B. Zühtü Uysal. "Solid circulation in a liquid spout-fluid bed with multi draft tubes." Journal of Chemical Technology & Biotechnology 72, no. 2 (June 1998): 143–48. http://dx.doi.org/10.1002/(sici)1097-4660(199806)72:2<143::aid-jctb885>3.0.co;2-l.

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41

Wilby, Robert L., and Nevil W. Quinn. "Reconstructing multi-decadal variations in fluvial flood risk using atmospheric circulation patterns." Journal of Hydrology 487 (April 2013): 109–21. http://dx.doi.org/10.1016/j.jhydrol.2013.02.038.

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42

Garcia-Diaz, Alberto. "A heuristic circulation-network approach to solve the multi-traveling salesman problem." Networks 15, no. 4 (1985): 455–67. http://dx.doi.org/10.1002/net.3230150407.

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43

Liu, Yanzhang, Jinqi Cai, and Guirong Tan. "Multi-Level Circulation Pattern Classification Based on the Transfer Learning CNN Network." Atmosphere 13, no. 11 (November 9, 2022): 1861. http://dx.doi.org/10.3390/atmos13111861.

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Анотація:

Deep learning artificial intelligence technology, which has the advantages of nonlinear mapping ability, massive information extraction ability, spatial-temporal modeling ability, and so on, provides new ideas and methods for further improving the accuracy of weather and climate extreme event prediction. A transfer learning CNN (Convolutional Neural Networks) classification model is established to classify the circulation patterns, along with the newly reconstructed dataset of regional persistent historical heavy rain events, daily rainfall data of 2474 observational stations, and the NCEP/NCAR global reanalysis data of daily geopotential height field in 1981–2018. Different from previous classifications, usually with one level variable, here, in addition to 500 hPa heights, 200 hPa zonal winds and 850 hPa meridional winds over the key areas are also considered in the model. The results show that the multi-level circulation pattern classification based on the transfer learning CNN network has a higher accuracy in the independent test than the single-level model, with the accuracy reaching 92.5% (while only 85% for the single-level model). The spatial correlation coefficient of precipitation between each typical mode and related patterns obtained by the multi-level transfer learning CNN classification is greater than that obtained by the single-level transfer learning CNN, and the variance of 500 hPa heights between each typical mode and the associated patterns is also greater than that obtained by the single-level transfer learning CNN. These results show that the performance of the classification by the multi-level transfer learning CNN model is better than that by the single-level transfer learning CNN. The study is helpful to develop circulation classifications related to large-scale weather or climate disaster events and then to provide a physical basis for further improving the forecast effect and extending the valid time of the forecast through combining the numerical model products.

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44

Long, Jimin, Xianqiang Li, Yang Kang, Yanhuai Ding, Zhipeng Gu, and Yi Cao. "Internalization, cytotoxicity, oxidative stress and inflammation of multi-walled carbon nanotubes in human endothelial cells: influence of pre-incubation with bovine serum albumin." RSC Advances 8, no. 17 (2018): 9253–60. http://dx.doi.org/10.1039/c8ra00445e.

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45

Liu, Zhikun, Rongtao Luo, Zhe Yang, Linjie Wang, and Liupeng Wang. "Research and Practice of Risk Early Warning Technology for Lost Circulation with Drilling under the Conditions of Geological Engineering Information Fusion: The Example of the Yuanba Area." Processes 10, no. 12 (November 27, 2022): 2516. http://dx.doi.org/10.3390/pr10122516.

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In the Yuanba area, many lost circulation accidents occur due to the complex geological structure, broken strata, and developed fractures, which seriously affect construction safety and drilling costs. Therefore, the Yuanba district is the focus of this paper. Firstly, a three-dimensional geomechanical model is established through multi-source information fusion to identify the main geological risk factors of lost circulation, according to the data on drilling and well logging in the operation area. Then a risk warning model and evaluation methods for loss circulation, based on geological engineering data fusion, are established, through which the characteristic parameters of various loss of circulation risks can be calculated in real time, parameters along the well trajectory can be extracted and compared, and thus, the risk of lost circulation is warned and analyzed in real time. The early warning of lost circulation risk can be achieved during drilling operations, which can improve the drilling efficiency and shorten the drilling cycle as a result.

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46

Lee, Pul-Eip, Duckhui Lee, Bum-Su Kim, Yuhoon Hwang, and Tae-Jin Lee. "A Study on the Improvement of Nitrogen & Phosphorus Removal of a Sequence Batch Reactor with Internal Circulation and Multi-Step Addition." Journal of Korean Society of Environmental Engineers 42, no. 5 (May 31, 2020): 280–88. http://dx.doi.org/10.4491/ksee.2020.42.5.280.

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Objectives:The purpose of this study is to increase the denitrification and phosphorus removals by the oxygen control of the anaerobic or anoxic period using the circulation of the supernants through the settled sludge and multi-step addition of raw wastewater during the operation of the internal circulation sequence batch reactor (ICSBR).Methods:The internal circulation pipe at the bottom of SBR is installed to circulate the supernatant into the settled sludge layer to create anoxic condition of non-aeration period instead of a stirrer in a SBR. And it is attempted to develope the SBR that properly uses the organic materials of the raw wastewater as a carbon source by the feeding the raw wastewater at a suitable time of the reaction period.Results and Discussion:Dissolved oxygen (DO) concentration of the reactor decreases more rapidly with an internal circulation to which the uniform pressure division method is applied, increasing the efficiency of about 40%. As the multi-step addition of raw wastewater proceeds, the nitrogen concentration of effluent is lowered and the C/N (Carbon/Nitrogen) ratio is higher, the nitrogen removal rate is higher.Conclusions:Circulating the supernatant to the bottom through settle sludge was effected to properly control the dissolved oxygen in the reaction tank, thereby improving the denitrification efficiency by about 68%. Even the higher the C/N ratio at the step addition can be expected the higher the nitrogen removal, it is noteworthy that the optimum feeding ratio of the multi-step addition may be different depending on the C/N ratio.

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47

Kyriakopoulos, Grigorios, Vasilis Kapsalis, Konstantinos Aravossis, Miltiadis Zamparas, and Alexandros Mitsikas. "Evaluating Circular Economy under a Multi-Parametric Approach: A Technological Review." Sustainability 11, no. 21 (November 4, 2019): 6139. http://dx.doi.org/10.3390/su11216139.

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A circular economy (CE) is conceptualized under different rounds of materials and energy cycling flows and is a matter of a three-level deployment: inter-enterprise circulation, regional circulation, and social circulation. Regarding them, the aim of this research was to get an update on the current technological advances and the perspectives of its implementation. Thus, a multi-parametric approach has been conducted to analyze the functionality of technologies in wastewater treatment, organic waste management, agrarian development, and food waste in the context of CE. Beside the narrative of the technological view, a critical approach assimilates the environmental, marketing, economic, governmental, and procedural viewpoints and leads to key indicators which are subject to positive and negative externalities. Due to this co-existence, we denoted the complexity of CE principle implementation and the need for specific envisage in each case, while proposing strategies are formulated in the light of social-environmental impact. Finally, further research gaps were proposed for deeper consideration.

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48

Hochet, Antoine, Guillaume Dodet, Fabrice Ardhuin, Mark Hemer, and Ian Young. "Sea State Decadal Variability in the North Atlantic: A Review." Climate 9, no. 12 (December 1, 2021): 173. http://dx.doi.org/10.3390/cli9120173.

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Long-term changes of wind-generated ocean waves have important consequences for marine engineering, coastal management, ship routing, and marine spatial planning. It is well-known that the multi-annual variability of wave parameters in the North Atlantic is tightly linked to natural fluctuations of the atmospheric circulation, such as the North Atlantic Oscillation. However, anthropogenic climate change is also expected to influence sea states over the long-term through the modification of atmospheric and ocean circulation and melting of sea ice. Due to the relatively short duration of historical sea state observations and the significant multi-decadal variability in the sea state signal, disentangling the anthropogenic signal from the natural variability is a challenging task. In this article, the literature on inter-annual to multi-decadal variability of sea states in the North Atlantic is reviewed using data from both observations and model reanalysis.

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49

Zhao, Zhi Qiang, and Ye Zhuang Tian. "Ecological Circulation System of Organization." Advanced Materials Research 869-870 (December 2013): 929–34. http://dx.doi.org/10.4028/www.scientific.net/amr.869-870.929.

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The organization is a multi-leveled system. The ecological circulation system is the cycle module and the safeguard mechanism to maintain the dynamic cycle system and activities between the enterprise development and the enterprise external environment. In this paper, we discuss ecological circulation system of organization. We conduct the model of organization ecological cycle system, and analyze the exchange cycle between the enterprise organization and market and between organization and society. The results show that environment which organizations live in is complicated and changeful. Any organization doesn't exist in isolation. The organization must combine with other organizations, natural environment and social environment etc to constitute a whole of mutual contact, mutual restriction and interdependence.

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50

Weiqiang, Yan, Yuan Zhidong, Ye Musen, Zuo Sijia, and Cheng Guanxun. "Normal left pulmonary inferior lobe in abnormal systemic circulation arterial supply." Archives of Pulmonology and Respiratory Care 8, no. 1 (November 16, 2022): 020–22. http://dx.doi.org/10.17352/aprc.000079.

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Normal left pulmonary inferior lobe in abnormal systemic circulation arterial supply without sequestration is a rare malformation of congenital lung vascular. Multi-Detector Computed Tomography (MDCT) and it’s Three-Dimensional (3D) reconstruction can display clearly the signs of the abnormal systemic circulation arterial supply to the lung lobe and the imaging changes of the left pulmonary inferior lobe associated with this disorder, it can provide detailed information for the clinician to make the treatment planning.

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