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Journal articles on the topic 'UP 2200'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Lynn Murphy, Susan, Christy Byks-Jazayeri, Brenda Eakin, et al. "2200." Journal of Clinical and Translational Science 1, S1 (2017): 45. http://dx.doi.org/10.1017/cts.2017.165.

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OBJECTIVES/SPECIFIC AIMS: To conduct a preliminary evaluation of the Social and Behavioral Research Best Practices Course. METHODS/STUDY POPULATION: Learners are sampled from 5 institutions: University of Michigan, University of Rochester, University of Florida, Boston University, and University of Buffalo. Learners who take the course and consent to be in the study receive a web link to a survey immediately after course completion and at 2–3 months follow up. In addition to demographic information, learners will report their perceptions of usefulness and relevance of the course to their job,

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2

Wang, Zhi-Chang, Fritz Aldinger, and Ralf Riedel. "Novel Silicon-Boron-Carbon-Nitrogen Materials Thermally Stable up to 2200°C." Journal of the American Ceramic Society 84, no. 10 (2004): 2179–83. http://dx.doi.org/10.1111/j.1151-2916.2001.tb00984.x.

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Sauder, C., J. Lamon, and R. Pailler. "The tensile properties of carbon matrices at temperatures up to 2200°C." Carbon 43, no. 10 (2005): 2054–65. http://dx.doi.org/10.1016/j.carbon.2005.03.020.

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4

Greaux, S., L. Gautron, D. Andrault, N. Bolfan-Casanova, N. Guignot, and J. Haines. "Structural characterization of natural UO2 at pressures up to 82 GPa and temperatures up to 2200 K." American Mineralogist 93, no. 7 (2008): 1090–98. http://dx.doi.org/10.2138/am.2008.2735.

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5

Yoo, Tae Jin, Wan Sik Kim, Kyoung Eun Chang, et al. "High Gain and Broadband Absorption Graphene Photodetector Decorated with Bi2Te3 Nanowires." Nanomaterials 11, no. 3 (2021): 755. http://dx.doi.org/10.3390/nano11030755.

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A graphene photodetector decorated with Bi2Te3 nanowires (NWs) with a high gain of up to 3 × 104 and wide bandwidth window (400–2200 nm) has been demonstrated. The photoconductive gain was improved by two orders of magnitude compared to the gain of a photodetector using a graphene/Bi2Te3 nanoplate junction. Additionally, the position of photocurrent generation was investigated at the graphene/Bi2Te3 NWs junction. Eventually, with low bandgap Bi2Te3 NWs and a graphene junction, the photoresponsivity improved by 200% at 2200 nm (~0.09 mA/W).

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Wang, Zhi-Chang, Fritz Aldinger, and Ralf Riedel. "ChemInform Abstract: Novel Silicon-Boron-Carbon-Nitrogen Materials Thermally Stable up to 2200 °C." ChemInform 33, no. 1 (2010): no. http://dx.doi.org/10.1002/chin.200201250.

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Neuman, Eric W., Gregory E. Hilmas, and William G. Fahrenholtz. "Mechanical behavior of zirconium diboride–silicon carbide–boron carbide ceramics up to 2200°C." Journal of the European Ceramic Society 35, no. 2 (2015): 463–76. http://dx.doi.org/10.1016/j.jeurceramsoc.2014.09.021.

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Barrand, Nicholas E., Richard C. A. Hindmarsh, Robert J. Arthern, et al. "Computing the volume response of the Antarctic Peninsula ice sheet to warming scenarios to 2200." Journal of Glaciology 59, no. 215 (2013): 397–409. http://dx.doi.org/10.3189/2013jog12j139.

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AbstractThe contribution to sea level to 2200 from the grounded, mainland Antarctic Peninsula ice sheet (APIS) was calculated using an ice-sheet model initialized with a new technique computing ice fluxes based on observed surface velocities, altimetry and surface mass balance, and computing volume response using a linearized method. Volume change estimates of the APIS resulting from surface mass-balance anomalies calculated by the regional model RACMO2, forced by A1B and E1 scenarios of the global models ECHAM5 and HadCM3, predicted net negative sea-level contributions between −0.5 and −12 mm

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9

WEISS, WERNER. "A Rapid Torsion Method for Measuring the Viscosity of Silica Glasses up to 2200°C." Journal of the American Ceramic Society 67, no. 3 (2006): 213–22. http://dx.doi.org/10.1111/j.1151-2916.1984.tb19745.x.

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Weaver, Andrew B., and Alina A. Alexeenko. "Revised Variable Soft Sphere and Lennard-Jones Model Parameters for Eight Common Gases up to 2200 K." Journal of Physical and Chemical Reference Data 44, no. 2 (2015): 023103. http://dx.doi.org/10.1063/1.4921245.

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11

Ferriere, A., L. Lestrade, and J.-F. Robert. "Optical Properties of Plasma-Sprayed ZrO2-Y2O3 at High Temperature for Solar Applications." Journal of Solar Energy Engineering 122, no. 1 (2000): 9–13. http://dx.doi.org/10.1115/1.556275.

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Experimental determinations of the absorptivity and of the total hemispherical emissivity of plasma-sprayed ZrO2-7wt%Y2O3 layers were performed in the range of temperature 1000 K–2300 K. For this purpose, solar facilities of CNRS-IMP laboratory were used. The experimental set-up is described and the obtained results are presented and discussed. The spectral absorptivity at 0.65 μm ranges from 0.10 below 1000 K to 0.75 at 2300 K, and the total hemispherical emissivity increases from 0.25 at 1300 K up to 0.60 at 2200 K. [S0199-6231(00)00301-4]

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12

Lara, A., R. Poyato, A. Muñoz, A. L. Ortiz та Arturo Domínguez-Rodríguez. "Spark Plasma Sintering and Microstructural Characterization of Additive-Free Polycrystalline β-SiC". Key Engineering Materials 423 (грудень 2009): 67–72. http://dx.doi.org/10.4028/www.scientific.net/kem.423.67.

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Additive-free -SiC powders were sintered by means of Spark Plasma Sintering System. Experiments were performed in the temperature range from 1650°C to 2200°C, 3 to 10 min holding time and pressure from 50 until 150 MPa. In order to favour sinterization, the starting powder was mechanically activated: defect concentration was increased by centrifugal ball milling. Applied temperature, holding time and/or pressure were varied to analyze their effect on the densification and grain growth kinetics. The full sinterization of the material was obtained for temperatures as high as 1900°C and over. Th

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Egorov, Oleg, Andrei Nikitin, Michäel Rey, Alena Rodina, Sergei Tashkun, and Vladimir Tyuterev. "Global modeling of NF3 line positions and intensities from far to mid-infrared up to 2200 cm−1." Journal of Quantitative Spectroscopy and Radiative Transfer 239 (December 2019): 106668. http://dx.doi.org/10.1016/j.jqsrt.2019.106668.

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Gangireddy, Sindhura, John W. Halloran, and Zachary N. Wing. "Flexural creep of zirconium diboride–silicon carbide up to 2200°C in minutes with non-contact electromagnetic testing." Journal of the European Ceramic Society 33, no. 15-16 (2013): 2901–8. http://dx.doi.org/10.1016/j.jeurceramsoc.2013.05.031.

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15

Rohbeck, Nadia, and Ping Xiao. "Effects of thermal treatment on the mechanical integrity of silicon carbide in HTR fuel up to 2200°C." Journal of Nuclear Materials 451, no. 1-3 (2014): 168–78. http://dx.doi.org/10.1016/j.jnucmat.2014.03.039.

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16

Corella, J., A. Monzon, J. Santamaria, and J. Gonza´lez-Can˜ibano. "Ultra-Fast Biomass Pyrolysis in a High-Temperature (2200° C), Fluid-Wall Reactor." Journal of Solar Energy Engineering 110, no. 1 (1988): 10–13. http://dx.doi.org/10.1115/1.3268229.

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The pyrolysis of pine sawdust has been carried out in a High-Temperature Fluid-Wall Reactor. This unit has been specially designed to withstand working temperatures of up to 2200° C. The biomass is fed to the top of the reactor after sieving to the appropriate size, at a rate of 1.0 to 1.8 kg/min. The feed falls and, at the same time is very quickly heated by radiation to the reaction temperature. The estimated heating rate is on the order of 106° C/s for reactant surfaces. The fluid-wall, produced by a nitrogen flow through the 30 cm diameter porous reactor core, prevents both reactants and p

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Lenzen, Horst, Nikolaus Roos, Walter Heindel, et al. "Screening for early lung cancer with low-dose spiral computed tomography: results of annual follow-up examinations in asymptomatic smokers." European Radiology 14, no. 4 (2004): 691–702. http://dx.doi.org/10.1007/s00330-003-2200-5.

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18

Shishkovsky, D. A., and V. V. Primachenko. "Investigation of the amount and composition of the glass phase by the chemical analysis method in samples of zirconium ramming mass on a phosphate binder after heat treatment in the temperature range 800—2200 °C." Scientific research on refractories and technical ceramics 117 (July 11, 2017): 94–106. http://dx.doi.org/10.35857/2663-3566.117.09.

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A procedure for isolating the glass phase and determining its quantity by a chemical method of analysis in zirconium refractories on a phosphate binder after their heat treatment has been developed and certified. The developed technique provides high convergence and reproducibility of the results of determining the amount of glass phase. The chemical composition of the glass phase in the samples from the printed mass based on ZrO2 stabilized by the combined addition of CaO and MgO after heat treatment is determined using known standard chemical analysis methods. It is established that after he

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19

Liu, Zhi Chao, Jia Chun Lu, and Ping Huang. "Fluorinated Pyrocarbon Prepared from Ketjenblack for Primary Lithium Battery." Advanced Materials Research 968 (June 2014): 16–20. http://dx.doi.org/10.4028/www.scientific.net/amr.968.16.

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Pyrocarbons were obtained by heat-treatment of Ketjenblack at different temperature from 1000°C to 2400°C, and fluorinated in NF3atmosphere at 520°C to give CFxsamples with high fluorine content. The results indicate that the structure of both pyrocarbons and their derivative fluorides mainly depend on the heat-treatment temperature of raw carbon. The correlation between the electrochemical performance and the structure of pyrocarbon fluoride was discussed in detail. At an optimum condition, the yield of fluorination can come up to 90%, and the pyrocarbon fluoride, as cathode active material o

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20

Duerinck, Tim, Mathias Kersemans, Ewa Skrodzka, Marc Leman, Geerten Verberkmoes, and Wim Van Paepegem. "Experimental Modal Analysis of Violins Made from Composites." Proceedings 2, no. 8 (2018): 535. http://dx.doi.org/10.3390/icem18-05457.

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Six prototype violins made from composite materials are made and investigated using experimental modal analysis with the roving hammer method. The average FRF’s obtained show an influence of the materials on the vibrational response up to 2200 Hz. The A0 breathing mode and B1- mode are identified and are found to be significantly lower than in classical wooden violins. Additional measurements with a Laser Doppler Vibrometer and shaker found the same modes with a small difference in frequency (3–8 Hz).

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21

Kang, Tongtong, Zongwei Ma, Jun Qin, et al. "Large-scale, power-efficient Au/VO2 active metasurfaces for ultrafast optical modulation." Nanophotonics 10, no. 2 (2020): 909–18. http://dx.doi.org/10.1515/nanoph-2020-0354.

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AbstractActive metasurfaces, in which the optical property of a metasurface device can be controlled by external stimuli, have attracted great research interest recently. For optical switching and modulation applications, high-performance active metasurfaces need to show high transparency, high power efficiency, as well as ultrafast switching and large-scale fabrication capability. This paper reports Au/VO2-based active metasurfaces meeting the requirements above. Centimeter-scale Au/VO2 metasurfaces are fabricated by polystyrene sphere colloidal crystal self-assembly. The devices show optical

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22

Bowerman, Niel H. A., David J. Frame, Chris Huntingford, Jason A. Lowe, and Myles R. Allen. "Cumulative carbon emissions, emissions floors and short-term rates of warming: implications for policy." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 369, no. 1934 (2011): 45–66. http://dx.doi.org/10.1098/rsta.2010.0288.

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A number of recent studies have found a strong link between peak human-induced global warming and cumulative carbon emissions from the start of the industrial revolution, while the link to emissions over shorter periods or in the years 2020 or 2050 is generally weaker. However, cumulative targets appear to conflict with the concept of a ‘floor’ in emissions caused by sectors such as food production. Here, we show that the introduction of emissions floors does not reduce the importance of cumulative emissions, but may make some warming targets unachievable. For pathways that give a most likely

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23

Julian-Jankowiak, Aurélie, V. Mathivet, Jean François Justin, and Vincent Guérineau. "Development of Ultra-High Temperature Ceramics: From Monoliths to Composites." Materials Science Forum 941 (December 2018): 2041–46. http://dx.doi.org/10.4028/www.scientific.net/msf.941.2041.

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Regarding materials development, our studies have been mainly focused on ZrB2-SiC and HfB2-SiC compositions with TaSi2or Y2O3additions using hot pressing and spark plasma sintering. These additives have been used to decrease the sintering temperature and to improve the oxidation resistance. Interesting mechanical properties at room and high temperature have been measured. Moreover, excellent oxidation behaviors have been observed up to 2000-2200°C with Y2O3. Last developments are centered on the manufacturing of ultrahigh temperature ceramic matrix composites (UHTCMC) using slurry infiltration

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24

Cottrell, P. L., and W. A. Lawson. "Pulsations and declines of RCB stars." International Astronomical Union Colloquium 139 (1993): 212–13. http://dx.doi.org/10.1017/s0252921100117397.

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AbstractWe have continued to observe many of the R Coronae Borealis (RCB) stars and other related hydrogen-deficient carbon stars. We wish to more fully investigate the photometric and spectroscopic properties of these peculiar stars.The UBVRI photometric data (acquired at Mount John University Observatory, MJUO) are being used to investigate whether the periods determined by Lawson et al. (1990), based on time intervals of up to 1100 d, are still evident in the larger datasets which now cover time intervals of up to 2200 d.The long time baseline of photometric observations that we have been a

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Ilies, P., and D. S. Mavinic. "Biological nitrification and denitrification of a simulated high ammonia landfill leachate using 4-stage Bardenpho systems: system startup and acclimation." Canadian Journal of Civil Engineering 28, no. 1 (2001): 85–97. http://dx.doi.org/10.1139/l00-094.

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This research investigated the nitrogen removal capability of two biological nitrification systems, with pre- and post-denitrification, when treating a landfill leachate characterized by high ammonia concentrations and low levels of biodegradable organics. The recycle ratios of the systems were set so that, at an average influent flow of 10 L/d, the actual hydraulic retention time of the first anoxic reactor was about 1.5 h for one system and 1.7 h for the other system. The systems also operated at a first aerobic reactor actual hydraulic retention time of 3 and 3.4 h, respectively. Methanol w

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Sun, Cui, Xiao-yan Ren, Yi Gao, et al. "Clinical Efficacy and Safety of Major Uterine Wall Resection and Reconstruction of the Uterus Combined with LNG-IUS for the Treatment of Severe Adenomyosis." Geburtshilfe und Frauenheilkunde 80, no. 03 (2019): 300–306. http://dx.doi.org/10.1055/a-0995-2200.

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Abstract Objective Aim of the study was to evaluate the clinical efficacy and safety of major uterine wall resection and reconstruction of the uterus (MURU) combined with a levonorgestrel-releasing intrauterine system (LNG-IUS) for the treatment of adenomyosis. Methods Ninety patients diagnosed with adenomyosis were enrolled in this study. All participants were examined by transvaginal ultrasound (TVU) or magnetic resonance imaging (MRI). Serum levels of cancer antigen 125 (CA 125) were quantitatively measured. All patients underwent MURU in combination with LNG-IUS. The therapeutic safety of

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Saavedra-Rodríguez, Carlos Arturo, and Jorge H. Velandia-Perilla. "Bassaricyon gabbii Allen, 1876 (Carnivora: Procyonidae): new distribution point on western range of Colombian Andes." Check List 7, no. 4 (2011): 505. http://dx.doi.org/10.15560/7.4.505.

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A new distribution point for the bushy-tailed olingo (Bassaricyon gabbii) was documented based on a specimen found in the forest on the eastern slope of the western range of the Colombian Andes (El Duende Regional Reserve, Valle del Cauca). The location where the animal was found had features similar to those where the species has been previously documented. We extend the known the species distribution to the western range of the Colombian Andes, both versants of the interandean valley of the Cauca River in Colombia and its elevation distribution up to 2200 m asl. Additional surveys are necess

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Rogante, M., I. Kovács, and Z. Szőkefalvi-Nagy. "PIXE Investigation of Ancient Linen Fabrics Dated from Old Kingdom to Ptolemaic Ages (2200-300 B.C.)." Advances in Sciences and Engineering 11, no. 2 (2019): 53–59. http://dx.doi.org/10.32732/ase.2019.11.2.53.

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External milli-beam particle induced X-ray emission spectroscopy (PIXE) has been used as non-destructive technique to investigate ancient linen fabrics from pre-dynastic and Ptolemaic ages belonging to the archaeological collections of the Egyptian Museum of Turin and to the Civic Archaeological Museum of Bologna, Italy. 9 linen fabric samples dated from Old Kingdom to Ptolemaic ages (2200-300 B.C.) were investigated, as well as 5 modern linen fabric samples, added for comparison. The primary goal of this work has been to advance the correct material description of the fabrics providing scient

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Li, Jinhua, Yulei Zhang, Haohao Wang, Yanqin Fu, Guohui Chen, and Zengzhe Xi. "Long-life ablation resistance ZrB2-SiC-TiSi2 ceramic coating for SiC coated C/C composites under oxidizing environments up to 2200 K." Journal of Alloys and Compounds 824 (May 2020): 153934. http://dx.doi.org/10.1016/j.jallcom.2020.153934.

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Fangnon, Eric, Yuriy Yagodzinskyy, Evgenii Malictki, Saara Mehtonen, Esa Virolainen, and Pedro Vilaça. "Determination of Critical Hydrogen Concentration and Its Effect on Mechanical Performance of 2200 MPa and 600 HBW Martensitic Ultra-High-Strength Steel." Metals 11, no. 6 (2021): 984. http://dx.doi.org/10.3390/met11060984.

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The influence of hydrogen on the mechanical performance of a hot-rolled martensitic steel was studied by means of constant extension rate test (CERT) and constant load test (CLT) followed with thermal desorption spectroscopy measurements. The steel shows a reduction in tensile strength up to 25% of ultimate tensile strength (UTS) at critical hydrogen concentrations determined to be about 1.1 wt.ppm and 50% of UTS at hydrogen concentrations of 2 wt.ppm. No further strength degradation was observed up to hydrogen concentrations of 4.8 wt.ppm. It was observed that the interplay between local hydr

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Andreani, Anne-Sophie, Francis Rebillat, and Angéline Poulon-Quintin. "Oxidation Mechanism of ZrB₂-SiC Tested in a Solar Furnace above 2200°C." Advances in Science and Technology 65 (October 2010): 124–29. http://dx.doi.org/10.4028/www.scientific.net/ast.65.124.

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The solar furnace is a heating system based on concentrated sunrays on the material surface. It is an original method for testing ultra-high-temperature ceramics (UHTC) at very high temperature (above 2200°C) in air with an exposure time of several minutes. In this study, the solar flux is 15.5 MW.m-2 with a homogeneous exposed surface of 10 mm2. A large temperature-time composition parameters space is covered producing a large set of oxidized samples. Massive cylindrical specimens of UHTC materials are prepared by spark plasma sintering at 1900°C under a pressure of 100 MPa for 5 minutes. The

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Lima, Helcira Maira Rodrigues de, and María Alejandra Vitale. "Perspectivas sobre a argumentação: breve panorama / Perspectives on argumentation: brief overview." REVISTA DE ESTUDOS DA LINGUAGEM 29, no. 4 (2021): 2175. http://dx.doi.org/10.17851/2237-2083.29.4.2175-2200.

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Resumo: A Retórica de Aristóteles (1998) foi retomada e ressignificada pelas teorias da argumentação contemporâneas. Cada uma delas se apropria dessa herança de modo a alavancar, a partir dos anos de 1990, uma intensa produção de pesquisas. Na atualidade, em um movimento que visa à melhor compreensão dos discursos sociais, em especial, da polêmica, do papel das emoções no discurso, da violência verbal, de discursos de ódio, entre outros, assistimos ao resgate do pensamento aristotélico em problemáticas da argumentação, a partir de um necessário diálogo com os trabalhos produzidos sobre o discu

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Grevitt, Michael. "Expert’s comment concerning Grand Rounds case entitled “Fusionless posterior hemivertebra resection in a 2-year-old child with 16 years follow-up” (by D. Jeszenszky, T. F. Fekete, F. S. Kleinstueck, D. Haschtmann, L. Bognár)." European Spine Journal 21, no. 8 (2012): 1477–78. http://dx.doi.org/10.1007/s00586-012-2200-8.

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Yoo, H. S., Y. H. Son, Tae Whan Hong, Soon Chul Ur, Sung Lim Ryu, and Soon Young Kweon. "Microstructure Characteristics and Electrical Properties of Sintered (Bi,La)₄Ti₃O₁₂ Ferroelectric Ceramics." Materials Science Forum 534-536 (January 2007): 565–68. http://dx.doi.org/10.4028/www.scientific.net/msf.534-536.565.

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1mm-thick BLT ceramics were sintered in accordance with a bulk ceramic fabrication process. All XRD peaks detected in the sintered ceramics were indexed as the Bi-layered perovskite structure without secondary phases. Density was increased with increasing the sintering temperature up to 1050°C and the maximum value was about 98% of the theoretical density. The remanent polarization (2Pr) value of BLT ceramic sintered at 1050°C was approximately 6.5 μC/cm2 at the applied voltage of 4.5kV. The calculated electromechanical couping factor (kt) of it was about 5% and the mechanical quality factor (

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Chubb, Katy L., Jonathan Tennyson, and Sergei N. Yurchenko. "ExoMol molecular line lists – XXXVII. Spectra of acetylene." Monthly Notices of the Royal Astronomical Society 493, no. 2 (2020): 1531–45. http://dx.doi.org/10.1093/mnras/staa229.

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ABSTRACT A new ro-vibrational line list for the ground electronic state of the main isotopologue of acetylene, 12C2H2, is computed as part of the ExoMol project. The aCeTY line list covers the transition wavenumbers up to 10 000 cm−1 (λ &gt; 1 $\mu$m), with lower and upper energy levels up to 12 000 and 22 000 cm−1 considered, respectively. The calculations are performed up to a maximum value for the vibrational angular momentum, Kmax = Lmax = 16, and maximum rotational angular momentum, J = 99. Higher values of J were not within the specified wavenumber window. The aCeTY line list is cons

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Popsueva, Victoria, Andrés Franklin Olivares Lopez, Anna Kosinska, Oleg Nikolaev, and Boris V. Balakin. "Field Study on the Thermal Performance of Vacuum Tube Solar Collectors in the Climate Conditions of Western Norway." Energies 14, no. 10 (2021): 2745. http://dx.doi.org/10.3390/en14102745.

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A significant part of energy consumption in Northern countries goes to heating. There is no consensus about the most efficient source of renewable heat there. This paper presents a field study for a 7.8 m2 vacuum tube solar collector facility that is conservatively located in the cloudy and cold climate conditions of western Norway. We analyse a year-long operation by examining the rig’s statistics. We show that in Nordic latitudes with rainy climate conditions, a domestic solar hot water system can produce 2200 kWhth/y at a thermal efficiency of up to 72%. The average amount of heat produced

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Abdul Ghofir, Hidjan, and Sutanto . "Comparison of the acoustic behavour between paper waste of HVS and carton in similar composite." International Journal of Engineering & Technology 7, no. 2-1 (2018): 444. http://dx.doi.org/10.14419/ijet.v7i2.8972.

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One of the hazardous environmental pollution that harms human health is Noise. Porous and vibrous materials are considered can be used for reducing noise. The purpose of the investigation is synthesizing and characterizing two kinds of acoustical composites based on Activated Zeolite with Carton and Activated Zeolite with HVS Paper Waste as building material components for noise reduction. Synthesizing each composite was conducted by chemical and mechanical mixing, and characterizing process was carried out by using EDS, FTIR, SEM and Impedance Tube. The absorption coefficient was measured in

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Arul, Kishore A., Begum S. Rashia, and G. Arumaikkannu. "Investigation of Porosity Relationship in Additive Manufactured Novel Bone Scaffold." Applied Mechanics and Materials 592-594 (July 2014): 836–41. http://dx.doi.org/10.4028/www.scientific.net/amm.592-594.836.

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Additive manufacturing (AM) is one the advanced process for building up a component layer by layer, with one layer of material was bonded to the previously laid layer using a 3D design data. In the field of medical science AM is very much useful in the development of Bone Scaffolds. The bone scaffold needs the good level of porosity for the cultivation of cells. In this work, an algorithm for a novel structure with the theme of flexible porosity was introduced. Scaffold models were developed using CATIA V5 for four different porosities. The novel structures made of Poly Amide (PA 2200) materia

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Labeckas, Gvidonas, and Stasys Slavinskas. "THE EFFECT OF ETHANOL, PETROL AND RAPESEED OIL BLENDS ON DIRECT INJECTION DIESEL ENGINE PERFORMANCE AND EXHAUST EMISSIONS." TRANSPORT 25, no. 2 (2010): 116–28. http://dx.doi.org/10.3846/transport.2010.15.

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The article deals with the testing results of a four stroke four cylinder, DI diesel engine operating on pure rapeseed oil (RO) and its 2.5vol%, 5vol% and 7.5vol% blends with ethanol (ERO) and petrol (PRO). The purpose of this study is to examine the effect of ethanol and petrol addition to RO on blend viscosity, percentage changes in brake mean effective pressure (bmep), brake specific fuel consumption (bsfc), the brake thermal efficiency (çe) of a diesel engine and its emission composition, including NO, NO2, NOX, CO, CO2, HC and the smoke opacity of exhausts. The addition of 2.5, 5 and 7.5v

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Kumar, K. M., P. Venkateswaran, and P. Suresh. "Effective Fuel Consumption by Improving Cooling Water Flow Rate in IC Engine." Applied Mechanics and Materials 812 (November 2015): 112–17. http://dx.doi.org/10.4028/www.scientific.net/amm.812.112.

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The coolant (water) pump assumes an important role of cooling system in IC engines. With upgrading of the engine power by turbocharging and turbo inter cooling, the water pump capacity needs to be increased corresponding to the power. This capacity enhancement has to be achieved without calling for a major change in the existing water pump, envelop and related fitment details. This requires a clear understanding of centrifugal pump for its performance parameter. One such engine is upgraded by turbocharging from 195PS to 240PS @2200 rpm. Improving water pump flow by changing the impeller dimens

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Cai, Zelin, Tao Feng, Jun Guo, Bo Hu, and Lei Wang. "Wind power short-term prediction over mountain area using a high-resolution WRF model." E3S Web of Conferences 260 (2021): 02012. http://dx.doi.org/10.1051/e3sconf/202126002012.

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Accurate wind power prediction are crucial for power-grid integration and load balancing, as well as the safe and stable operation of the power grid. In this study, the relationship between the wind speed and wind power over mountain area is firstly investigated using the observations in Hunan Baiguoshan Mountain, and the fitting equation is proposed to predict the wind power with wind speed. Using the simulation of the WRF model with a 3-kilometer horizontal resolution, its prediction performance for short-term wind power is further analyzed. The results show that a sixth power relationship e

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Peña, Carlos, and Niklas Wahlberg. "Prehistorical climate change increased diversification of a group of butterflies." Biology Letters 4, no. 3 (2008): 274–78. http://dx.doi.org/10.1098/rsbl.2008.0062.

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Satyrinae butterflies (Lepidoptera: Nymphalidae) and grasses (Poaceae) are very diverse and distributed worldwide. Most Satyrinae use grasses as host plants, but the temporal scale of this tight association is not known. Here, we present a phylogenetic study of Satyrinae butterflies and related groups, based on 5.1 kilobases from six gene regions and 238 morphological characters for all major lineages in the ‘satyrine clade’. Estimates of divergence times calibrated using a fossil from the Late Oligocene indicate that the species-rich tribe Satyrini diversified to its current 2200 species simu

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Whitman, Catherine M., Royal D. Heins, Arthur C. Cameron, and William H. Carlson. "Cold Treatment and Forcing Temperature Influence Flowering of Campanula carpatica `Blue Clips'." HortScience 32, no. 5 (1997): 861–65. http://dx.doi.org/10.21273/hortsci.32.5.861.

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The influence of cold treatments on flowering in Campanula carpatica Jacq. `Blue Clips' was determined. Plants with 10 to 12 nodes (P1) and 12 to 16 nodes (P2), in 128-cell (10-mL cell volume) and 50-cell (85-mL cell volume) trays, respectively, were stored at 5 °C for 0, 2, 4, 6, 8, 10, 12, or 14 weeks under a 9-hour photoperiod. They then were transplanted and forced in a 20 °C greenhouse under a 9-hour photoperiod with a 4-hour night interruption (NI) (2200 to 0200 hr). Time to visible bud and to flowering in P1 decreased slightly as the duration of cold treatment increased. Flowering was h

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Hanna, M., and G. A. Karim. "The Combustion of Lean Mixtures of Methane and Air—A Kinetic Investigation." Journal of Energy Resources Technology 108, no. 4 (1986): 336–42. http://dx.doi.org/10.1115/1.3231286.

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The combustion of lean mixtures of methane, representing natural gas, in air is examined analytically employing a detailed chemical kinetic scheme involving 14 species and made up of 32 reaction steps that proceed simultaneously. The changes with time in the concentrations of the major relevant reactive species are determined throughout, right from the commencement of the preignition reactions to the time of achieving near equilibrium conditions. The results of such an approach to the combustion process are considered over a wide range of temperature (1200 K–2200 K) and equivalence ratios (fro

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Accolla, M., G. Pellegrino, G. A. Baratta, et al. "Combined IR and XPS characterization of organic refractory residues obtained by ion irradiation of simple icy mixtures." Astronomy & Astrophysics 620 (December 2018): A123. http://dx.doi.org/10.1051/0004-6361/201834057.

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Context. Multi-year laboratory experiments have demonstrated that frozen icy mixtures containing simple organic and inorganic molecules (such as H2O, N2, CH4, CO, CO2, C2H6, etc.), if exposed to a flux of energetic ions or UV photons, give rise to new more complex molecules at low temperatures (10–50 K). A fraction of the new synthesized molecules is volatile while the remaining fraction is refractory and therefore it is preserved after the warm-up of the substrate to room temperature. Moreover, a part of the refractory material is formed during the annealing to room temperature, when molecule

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Rack, Jeffrey J., Oleg G. Polyakov, Christine M. Gaudinski, et al. "Use of 0.0 mm Pathlength Gas Cell to Eliminate CO(g) Absorbance from High-CO-Pressure Solid-State IR Spectra of Nonclassical Metal Carbonyls." Applied Spectroscopy 52, no. 8 (1998): 1035–38. http://dx.doi.org/10.1366/0003702981944904.

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A transmission-IR gas cell was constructed from 18%-Ni maraging steel so that two parallel 10 mm diameter × 3 mm thick sapphire windows were held approximately 0.1 mm apart. The cell was engineered to withstand static gas pressures up to 150 atm. When 100 atm CO was placed in the cell, the % transmittance was essentially zero between 2200 and 2080 cm−1 because of the intense v(CO) band centered at 2143 cm−1 (this is an important region of interest for the growing subset of metal carbonyl complexes known as nonclassical metal carbonyls). When the cell was assembled with Nujol or Fluorolube mull

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Bittner, Tomáš, Petr Bouška, Šárka Nenadálová, Milan Rydval, and Miroslav Vokáč. "Effect of Temperature Increasing on Deformation Properties of TRC." Solid State Phenomena 259 (May 2017): 75–79. http://dx.doi.org/10.4028/www.scientific.net/ssp.259.75.

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This paper presents a description of the changes in the deformation properties of TRC under a gradual increase in temperature. TRC [1, 2] is a composite material consisting of a fine-grained UHPC matrix and textile glass fibres, known as AR-Glass. A very high load-bearing composite can be produced by combining the high compressive strength of UHPC (approximately 150 MPa) and the high tensile strength of textile glass fibres (about 2200 MPa). Samples 1100 x 120 x 20 mm in size were produced for the experiment. The samples were placed in a thermal chamber and were submitted to a constant load. I

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Mavrov, V., I. Dobrevski, V. Peneva, S. Rashkov, and N. Stathopoulos. "Treatment of Wastewater Containing Oil." Water Science and Technology 21, no. 1 (1989): 137–39. http://dx.doi.org/10.2166/wst.1989.0016.

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The possibilities for treatment of a wastewater containing 120 - 170 mg/l of oil, with a COD of 190 - 312 mg O2/l and a pH of 7 - 7.6, were studied. A treatment process consisting of coagulation and adsorption was investigated. The effectiveness of coagulation using aluminium sulphate, ferric chloride, and aluminium chloride, was examined, and for the adsorption process, three activated carbons (A, B, and C) were considered. Carbons A and B were new types of activated carbon based on different pyrolysed brown coals, and carbon C was a commercial activated carbon. It was established that the op

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Corrente, Giuseppina Anna, Sante Cospito, Agostina Lina Capodilupo, and Amerigo Beneduci. "Mixed-Valence Compounds as a New Route for Electrochromic Devices with High Coloration Efficiency in the Whole Vis-NIR Region." Applied Sciences 10, no. 23 (2020): 8372. http://dx.doi.org/10.3390/app10238372.

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Electrochromic devices (ECDs) that allow the modulation of light transmission are very attractive in the research field of energy saving. Here all-in-one gel switchable ECDs based on mixed-valence electroactive compounds were developed. The use of the thienoviologen/ferrocene couple as cathode and anode, respectively, leads to a significant electrochromic band in the visible range (550–800 nm), with a color change from yellow to green, and to a lower band in the NIR region (1000–1700 nm), due to the presence of one electroactive-chromic species. Replacement of the electroactive ferrocene with

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Weiberg, Erika. "Contrasting Histories in Early Bronze Age Aegean: Uniformity, Regionalism and the Resilience of Societies in the Northeast Peloponnese and Central Crete." Cambridge Archaeological Journal 27, no. 3 (2017): 479–94. http://dx.doi.org/10.1017/s095977431700018x.

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Late Early Bronze Age (EB IIB–III, 2500–2000 bc) evidence from the northeast Peloponnese and central Crete present two coeval sequences of events with very different societal outcomes. By drawing on resilience theory and the model of adaptive cycles, this article explores when and why the paths of mainland Greece and Crete diverged around 2200 bc, leading to an eventually destabilizing change on the mainland and a more sustainable one on Crete. It is argued that the two EB II societal structures were more similar than current discourse generally allows. However, during some hundred years leadi

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