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Recent Trends in Nitrogen Cooling Modelling of Extrusion Dies Riccardo Pelaccia1,a*, Marco Negozio2,b, Sara Di Donato2,c, Lorenzo Donati2,d, Barbara Reggiani1,3,e 1DISMI Department of Sciences and Methods for Engineering, University of Modena and Reggio Emilia, Via Amendola 2, 42122, Reggio Emilia, Italy 2DIN Department of Industrial Engineering, University of Bologna, Viale Risorgimento 2, 40136, Bologna, Italy 3INTERMECH, University of Modena and Reggio Emilia, Italy a*riccardo.pelaccia@unimore.it, bmarco.negozio2@unibo.it, csara.didonato2@unibo.it, dl.donati@unibo.it, ebarbara.reggiani@unimore.it Keywords: Liquid Nitrogen, Cooling Channels; Extrusion Dies, Topological Optimization.
The use of a 3D model of the cooling channel (approach ②) can be taken into account when the extrusion process is replaced with thermal boundary conditions where the material flow is in contact with the tooling set (feeder, portholes, bearings…).
Indeed, the cooling path must be designed to further reduce the temperature in the hottest surfaces and, to a lesser extent in the other areas, so that the thermal gradient on the die walls caused by the material flow must be well modelled.
Pizzarelli, Effectiveness of Spalart–Allmaras Turbulence Model in Analysis of Curved Cooling Channels, AIAA Journal 51(9) (2013) 2158-2167.

Miseki, Heterogeneous photocatalyst materials for water splitting.
Sorrell, Photo-electrochemical hydrogen generation from water using solar energy- materials-related aspects.
Jaramillo, Modeling practical performance limits of photoelectrochemical water splitting based on the current state of materials research.
Gong, Controllable fabrication of nanostructured materials for photoelectrochemical water splitting via atomic layer deposition.
Ramakrishna, Review of one-dimensional and two-dimensional nanostructured materials for hydrogen generation.

Comet assay determine DNA damage baseline level of Mollusca hemolymph cells in Poyang Lake and surrounding waters XU Liang，ZHOU Kan，ZHOU Chunhua, OUYANG Shan, WU Xiaoping1 College of Life Sciences and Food Engineering; Nanchang University; Nanchang , 330031.
Materials and methods We collected dominant mollusc species of each site in withered and plentiful water period, and ensured samples of each species with similar size.
Journal of Marine Systems, 72: 320-331

Materials and Research Methods During the study, the authors analyzed cases of patients during the ambulatory treatment in city policlinics and in the traumatological policlinic.
The search for publications in Russian in peer-reviewed journals was carried out on the electronic basis RISC (Russian Science Citation Index) and the scientific electronic library eLIBRARY.RU.

Journal Citation (to be inserted by the publisher) Copyright by Trans Tech Publications Toxicity Screening Tests for Wastewater Treatment Plants - I Jin-Hwa Park1 and Yong Woo YI2 1 Korea Institute of Environmental Science and Technology 613-2, Bulgeang-Dong Eunpyeong-Gu, Seoul, Korea, sunflower@kiest.org 2 Center for Optic Technology, Jeonnam Provincial College, Damyang-Eup, Jeonnam, Korea, ywyi@namdo.ac.kr Keywords: Toxicity Screening Test, Wastewater, ETr and RET, Activated Sludge, Trickling Filter.
Samples include domestic sewage, primary settled sewage with or without industrial wastewater, Straus wastewater, Hospital wastewater, Home Life domestic wastewater, various types of dyes and other materials used at Straus Knitting Mills, and TF biomass.

Moffat, Describing the Uncertainty in Experimental Results, Experimental Thermal and Fluid Science, New York, pp. 3-17, 1988
Eifler et al., Approach for a consistent description of uncertainty in process chains of load carrying mechanical systems, Applied Mechanics and Materials, 2012, pp. 133-144
Kiritsis, Ontology applications in PLM, International Journal of Product Lifecycle Management (Vol.5, No.1), pp. 84-97, 2011

LFG refers to a gas that is generated when the buried organic materials are decomposed by microorganisms, and generally uses the chemical composition of CO2 in 40% and CH4 in 55~60% as an energy source [5,6].
Yin, The Oil and Gas Industry and the Development of the Natural Gas Automobile Industry, In IOP Conference Series: Earth and Environmental Science 267 2 (2019) 022043
Jazayeri, Effect of hydrogen addition on RCCI combustion of a heavy duty diesel engine fueled with landfill gas and diesel oil, International Journal of Hydrogen Energy, 44 14 (2019).

Von Mises found that, even though none of the principal stresses exceeds the yield stress of the material, it is possible for yielding to result from the combination of stresses.
If the "Von Mises Stress" exceeds the yield stress, then the material is considered to be at the failure condition.
Rajasankar, et al., "Structural integrity assessment of offshore tubular joints based on reliability analysis," International Journal of Fatigue, vol. 25, pp. 609-619, 2003
Thesis, Department of Civil Engineering, Imperial College of Science, Technology and Medicine, London, 1992

It is related to the security and smoothness of important equipment, works and bureau departments have putted a lot of manpower, material and financial resources on the maintenance of turnout.
Acknowledgements This work was financially supported by the National natural science Foundation (51008256) and.
National youth natural science Foundation (51078320).
Journal of Southwest Jiaotong University. 2010（1）：28-33 :In Chinese

Acknowledgements This work was financially supported by the Advance Research Fund of Key Laboratory of Science and Technology for National Defence (9140C900401130C90001).
References [1] Yao Yiping, Zhang Yingxing, Parallel Processing-based Analysis and Simulation Solutions, Journal of System Simulation, Vol.20 No.24(2008): p.6617-6622 [2] Yao Yiping: User Materials of Military High-performance Simulation Computer Systems (Press of National Defense University, Changsha 2011) [3] Gang Liu, Yiping Yao, Buquan Liu.