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Готові списки джерел за темами / N-Octadecane

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Добірка наукової літератури з теми "N-Octadecane"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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Статті в журналах з теми "N-Octadecane"

1

Voronin, Denis V., Eliza Sitmukhanova, Rais I. Mendgaziev, et al. "Polyurethane/n-Octadecane Phase-Change Microcapsules via Emulsion Interfacial Polymerization: The Effect of Paraffin Loading on Capsule Shell Formation and Latent Heat Storage Properties." Materials 16, no. 19 (2023): 6460. http://dx.doi.org/10.3390/ma16196460.

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Organic phase-change materials (PCMs) hold promise in developing advanced thermoregulation and responsive energy systems owing to their high latent heat capacity and thermal reliability. However, organic PCMs are prone to leakages in the liquid state and, thus, are hardly applicable in their pristine form. Herein, we encapsulated organic PCM n-Octadecane into polyurethane capsules via polymerization of commercially available polymethylene polyphenylene isocyanate and polyethylene glycol at the interface oil-in-water emulsion and studied how various n-Octadecane feeding affected the shell forma

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2

Huang, Jing Yu, Shi Lei Lv, Chen Xi Zhang, and Zhi Wei Wang. "Thermal Properties Analysis of Several N-Alkanes Eutectic Mixtures Applied in Building Envelopes." Advanced Materials Research 512-515 (May 2012): 3007–10. http://dx.doi.org/10.4028/www.scientific.net/amr.512-515.3007.

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This study focuses on the preparation, thermal properties of alkanes eutectic mixtures (n-Octadecane/n-Eicosane, n-Octadecane/n-Docosane and n-Heptadecane /n-Eicosane) as candidate phase change material (PCM) for low temperature latent heat storage systems in building envelopes. Their melting temperature and latent heat were tested by Differential scanning calorimetry (DSC). The testing values were closed to calculation values of accepted theory that ensured the reliability of those datas. The results indicated n-Octadecane/n-Docosane eutectic mixture was more promising PCM for buildings in te

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3

Haehner, Thomas, Ulrich Massing, Torsten Diesinger, and Dieter Müller-Enoch. "Inhibition of Cytochrome P450 Mediated Enzyme Activity by Alkylphosphocholines." Zeitschrift für Naturforschung C 59, no. 7-8 (2004): 599–605. http://dx.doi.org/10.1515/znc-2004-7-826.

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AbstractThe inhibitory potency of four alkylphospholipids: rac-1-O-phosphocholine-2-hydroxy-octadecane (rac-2-OH), rac-1-O-phosphocholine-2-O-acetyl-octadecane (rac-2-O-acetyl), rac-1- O-phosphocholine-2-amino-octadecane (rac-2-NH2) and rac-1-O-phosphocholine-2-N-acetyloctadecane (rac-2-N-acetyl), on the cytochrome P450-dependent monooxygenase activity has been evaluated. The IC50 values of the alkylphosphocholines with 7-ethoxycoumarin as substrate in liver microsomal fractions of PB-treated rats and with a reconstituted CYP2B1: NADPH-P450-reductase system are in the range of 3.2D5.0 μм and 2

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4

Song, Xiao Qiu, Yu Ping Duan, and Yue Xia Li. "Preparation of High Security N-Octadecane MicroPCMs by In Situ Polymerization." Applied Mechanics and Materials 727-728 (January 2015): 141–44. http://dx.doi.org/10.4028/www.scientific.net/amm.727-728.141.

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N-octadecane microcapsules phase change materials(MicroPCMs) were prepared by thein-situ polymerization method using n-octadecane as core materials, urea-formaldehyde resin as shellmaterials respectively. Melamine–formaldehyde (MF) microcapsules have been widely applied inmany functional materials. Free formaldehyde content are important safetyfactor determining the survival of the microcapsules during fabrication andapplication. In this study, the formaldehyde content of n-octadecane MicroPCMs decrease to 0.35g/Kg which even lower than the standard EuropeanE3 level (0.6g/Kg) through regulatio

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5

Li, J., Y. Mao, X. Yang, et al. "Molecular dynamics simulation of thermal properties of modified graphene / n-octadecane composite phase change material." Journal of Physics: Conference Series 2749, no. 1 (2024): 012008. http://dx.doi.org/10.1088/1742-6596/2749/1/012008.

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Abstract Phase change materials have been widely used in building energy-saving and off-peak energy storage systems, but most phase change materials limit their application because of their low thermal conductivity. Improving their heat transfer performance and revealing the heat transfer mechanism from a microscopic perspective are the keys to practical applications. The PCM system composed of n-octadecane and modified graphene was established by molecular dynamics simulation and the influence of macro thermal properties was analyzed from a microscopic perspective including end-to-end distanc

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6

Hidayat, Asep, and Sanro Tachibana. "EFFECT OF PIPERONYL BUTOXIDE AND SILVER NITRATE ON DEGRADATION PATHWAYS OF N-OCTADECANE BY Fusarium sp. F092." Indonesian Journal of Forestry Research 3, no. 1 (2016): 1–7. https://doi.org/10.59465/ijfr.2016.3.1.1-7.

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The aliphatic fraction is usually the largest component in crude oil. Its removal from oil contaminated fields has become an environmental priority and been considered useful for enhancing recovery. Our previous studies reported the isolation of Fusarium sp. F092 based on the ability to degrade chrysene. It also could degrade crude oils and their aliphatics fractions. However, aliphatic degradative pathways in crude oil have not been clearly understood. The identification of aliphatic metabolite pathways using a representative compound n-octadecane was carried out in this study, as well as the

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7

Zhang, Ning Xin, Xiao Yu Yuan, Ji Wen Zong, Wei Li, Yuan Kai Zhang, and Xing Xiang Zhang. "Photoinduced Microencapsulation of Microcapsules Containing n-Octadecane with P(APUA) and P(AMA) Shell." Materials Science Forum 852 (April 2016): 1182–87. http://dx.doi.org/10.4028/www.scientific.net/msf.852.1182.

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An advanced microencapsulation for n-octadecane has been successfully developed via UV photoinduced polymerization in this study, which was characterized by some superior qualities (e.g. rapid microencapsulation, energy-saving and environment-friendly) compared to conventional microencapsulation process. The morphology, microstructure and properties of the microencapsulated n-octadecane with poly (aliphatic polyurethane acrylate) and poly (allyl methacrylate) as shell were respectively investigated by FE-SEM, TEM and DSC. The effects of UV irradiation time, shell material types and feed ration

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8

Chen, Bolin, Meng Han, Bowei Zhang, et al. "Efficient Solar-to-Thermal Energy Conversion and Storage with High-Thermal-Conductivity and Form-Stabilized Phase Change Composite Based on Wood-Derived Scaffolds." Energies 12, no. 7 (2019): 1283. http://dx.doi.org/10.3390/en12071283.

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Solar-to-thermal energy conversion is one of the most efficient ways to harvest solar energy. In this study, a novel phase change composite with porous carbon monolith derived from natural wood is fabricated to harvest solar irradiation and store it as thermal energy. Organic phase change material n-octadecane is physically adsorbed inside the porous structure of the carbonized wood, and a thin graphite coating encapsulates the exterior of the wood structure to further prevent n-octadecane leakage. The carbonized wood scaffold and the graphite coating not only stabilize the form of the n-octad

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9

Aftab, S., J. Javanmardi, and K. Nasrifar. "Experimental investigation and thermodynamic modeling of wax disappearance temperature for n-undecane+n-hexadecane+n-octadecane and n-tetradecane+n-hexadecane+n-octadecane ternary systems." Fluid Phase Equilibria 403 (October 2015): 70–77. http://dx.doi.org/10.1016/j.fluid.2015.06.004.

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10

Nguyen, Giang Tien, Ha Soo Hwang, Jiyoung Lee, Dong An Cha, and In Park. "n-Octadecane/Fumed Silica Phase Change Composite as Building Envelope for High Energy Efficiency." Nanomaterials 11, no. 3 (2021): 566. http://dx.doi.org/10.3390/nano11030566.

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A novel n-octadecane/fumed silica phase change composite has been prepared as a building envelope with a high content of phase change material and improved energy efficiency. With a high porosity (88 vol%), the fumed silica provided sufficient space to impregnate a high quantity of n-octadecane (70 wt%). The composite exhibited high latent heat storage capacity (155.8 J/g), high crystallization fraction (96.5%), and a melting temperature of 26.76 °C close to that of pure n-octadecane. A 200 accelerated thermal cycle test confirmed good thermal reliability and chemical stability of the phase ch

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Більше джерел

Дисертації з теми "N-Octadecane"

1

Hagelstein, Georg [Verfasser], Eckhard [Akademischer Betreuer] Bartsch, and Hans-Martin [Akademischer Betreuer] Henning. "Untersuchung zum Kristallisationsverhalten in n-Octadecan-Wasser-Dispersionen." Freiburg : Universität, 2018. http://d-nb.info/1181689910/34.

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2

Chung, Hsiao-Min, and 鍾曉旻. "Preparation of Nickel-Coated n-Octadecane Microcapsules." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/aggq5u.

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碩士<br>國立臺北科技大學<br>化學工程研究所<br>98<br>In this study, n-octadecane microcapsules with polymer shell were prepared using in-situ polymerization, then nickel were coated onto the microcapsules to prepare Ni-coated n-octadecane microcapsules. The ratio of n-octadecane and pre-polymer, reaction temperature, pH, the concentration of surfactant and dispersant were investigated, and also tried to involve NaCl into the prepolymer solution. The products were analysed using SEM, DSC and FTIR, then discussed the relationship between the particle size and its morphology, core/shell ratio, enclosed amount and

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3

Huang, Shih-fang, and 黃士芳. "Preparation of PCM microcapsules containing n-octadecane." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/61284849444729175780.

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碩士<br>國立中央大學<br>化學工程與材料工程研究所<br>99<br>In this study, the microencapsulated n-octadecane phase change materials (microPCMs) were prepared by suspension polymerization or emulsion-free polymerization. Methyl methacrylate and styrene were used as monomers. EGDMA was used as cross-linking agent. The thermal physical properties, surface morphology, thermal stabilities ,and chemical composition of microcapsules were measured by differential scanning calorimetry (DSC), scanning electron microscope (SEM), thermo gravimetric analysis (TGA) ,and fourier transform infrared spectroscopy (FTIR). In t

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Частини книг з теми "N-Octadecane"

1

Oluah, Chukwumaobi K., Esther T. Akinlabi, and Howard O. Njoku. "CFD Study on the Thermal Performance of n-Octadecane (PCM) Doped with Graphene Nanoparticles as a Potential Thermal Energy Storage Medium for Trombe Walls." In Lecture Notes in Mechanical Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5753-8_50.

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2

"octadecane, n." In Oxford English Dictionary, 3rd ed. Oxford University Press, 2023. http://dx.doi.org/10.1093/oed/1193716893.

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3

"octadecanol, n." In Oxford English Dictionary, 3rd ed. Oxford University Press, 2023. http://dx.doi.org/10.1093/oed/1113729467.

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Тези доповідей конференцій з теми "N-Octadecane"

1

Mert, Hatice Hande, Mehmet Selcuk Mert, and Muslum Artici. "Modified Kaolinite Supported n-Octadecane Based Composite Phase Change Materials." In 2022 7th International Conference on Smart and Sustainable Technologies (SpliTech). IEEE, 2022. http://dx.doi.org/10.23919/splitech55088.2022.9854375.

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2

Magdadaro, Miceh Rose D., Rey Y. Capangpangan, Arnold A. Lubguban, and Arnold C. Alguno. "Effects of N-Octadecane as PCM on the Thermal and Mechanical Properties of Polyurethane Foams Utilizing Coconut-Based Polyols." In International Conference on Advances in Materials Science 2021. Trans Tech Publications Ltd, 2022. http://dx.doi.org/10.4028/p-2ih4l3.

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The utilization of vegetable oil in producing bio-based polyol, as an alternative replacement to petroleum-based polyol in making polyurethane (PU) foam has gained a lot of interest due to its finite supply and low production cost. In this study, bio-based polyol using coconut oil as raw material produced PU foam as thermal insulation material. The vegetable oil-based polyol was prepared using a two-step method, while PU foams were prepared by the free-rise method. In order to enhance the thermal properties of the produce PU foams, phase change material (PCM) was added to the PU foam formulati

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3

Fan, Shuang, Hongyi Gao, Qiming Xu, et al. "Nanoencapsulation of n-Octadecane Phase Change Material with Polyaniline Shell for Thermal Energy Storage." In 2015 3rd International Conference on Advances in Energy and Environmental Science. Atlantis Press, 2015. http://dx.doi.org/10.2991/icaees-15.2015.288.

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4

Hummel, Daniel, Stefan Beer, and Andreas Hornung. "Three-Dimensional Numerical Investigation of Constrained Melting of N-Octadecane in a Spherical Enclosure." In The 3rd World Congress on Momentum, Heat and Mass Transfer. Avestia Publishing, 2018. http://dx.doi.org/10.11159/enfht18.124.

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5

Azad, Mohammad, and Dominic Groulx. "A STUDY OF THE MELTING OF n-OCTADECANE IN HORIZONTAL CYLINDRICAL ANNULI: ONSET OF CONVECTION AND GLOBAL MELTING." In Proceedings of CHT-21 ICHMT International Symposium on Advances in Computational Heat Transfer. Begellhouse, 2021. http://dx.doi.org/10.1615/ichmt.2021.cht-21.10.

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6

Subrahmaniyam, S., A. Pavan Sai Kumar, and Divya Namuduri. "Natural Convection Effects on Freezing in Vertical Cylinders." In ASME 2005 International Solar Energy Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/isec2005-76170.

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Freezing is an important thermal process with solar applications. The Phase Change Material (PCM) undergoes freezing process and the rate of freezing is influenced by natural convection in the melt if it is above the melting point. Experimental study was conducted on two PCMs namely Paraffin wax (m.p 63–65°C) and n-octadecane (m.p 27.7 °C). Steel and copper containers with insulation at both bottom and top by thermocol (1 cm thick) and acrylic plates (1 cm thick) are used to allow only radial heat flux. The PCMs were separately heated in a container to a known superheat and placed in an isothe

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7

Sharma, Akhalesh, Rohit Kothari, Anuj Kumar, and Santosh Kumar Sahu. "Effect of Fin Orientation on PCM Melting in a Spherical Enclosure for Latent Heat Storage." In ASME 2021 Power Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/power2021-65622.

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Abstract The present work is focused on numerical investigation of melting of Phase change material (PCM) filled in a spherical capsule integrated with a metallic fin. n-octadecane having melting temperature of 28° C is selected as PCM and aluminum is considered as fin material. The effect of fin orientation on PCM melting in a spherical enclosure is analyzed considering constrained melting conditions. The orientation angle of the fin is varied from 0–30° in both clockwise and anticlockwise directions. The computational model is considered as two dimensional axisymmetric with laminar flow cond

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8

Sharma, Akhalesh, Vivek Saxena, and Santosh K. Sahu. "Effect of Fin Shape on Constrained Melting Heat Transfer of Phase Change Material in a Spherical Capsule: A Numerical Study." In ASME 2022 Power Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/power2022-86314.

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Abstract The present work is focussed on numerical investigation of the constrained melting of phase change material (n-octadecane) in a circumferentially finned spherical capsule keeping the base and volume of the fins equal in all cases. Four different fin shapes, namely straight, trapezoidal converging, stepped, stepped inverse, located at the center of the spherical capsule are considered for the study A series of two-dimensional transient numerical simulations are carried out. Present numerical results are validated with the existing experimental results of Fan et al. [5]. Various thermal

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9

Gonzalez-Nino, David, Lauren M. Boteler, Dimeji Ibitayo, Nicholas R. Jankowski, and Pedro O. Quintero. "Numerical Evaluation of Multiple Phase Change Materials for Pulsed Electronics Applications." In ASME 2016 Heat Transfer Summer Conference collocated with the ASME 2016 Fluids Engineering Division Summer Meeting and the ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/ht2016-7223.

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A simple and easy to implement 1-D heat transfer modeling approach is presented in order to investigate the performance of various phase change materials (PCMs) under fast transient thermal loads. Three metallic (gallium, indium, and Bi/Pb/Sn/In alloy) and two organic (erythritol and n-octadecane) PCMs were used for comparison. A finite-difference method was used to model the transient heat transfer through the system while a heat integration or post-iterative method was used to model the phase change. To improve accuracy, the material properties were adjusted at each iteration depending on th

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10

Yang, Bin, Alexander I. McIntosh, Stephen M. Goldup, Michael Watkinson, and Robert S. Donnan. "Investigation of n-octadecane's crystallization by quasi-optical transmissometer." In 2012 37th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2012). IEEE, 2012. http://dx.doi.org/10.1109/irmmw-thz.2012.6380083.

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