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Journal articles on the topic 'Accelerated deposition'

Author: Grafiati

Published: 4 June 2021

Last updated: 17 February 2022

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1

HONG, Xu. "E301 ALLEVIATING FLOW ACCELERATED CORROSION AND MAGNETITE DEPOSITION ON SUPERCRITICAL UNITS(Corrosion)." Proceedings of the International Conference on Power Engineering (ICOPE) 2009.3 (2009): _3–265_—_3–269_. http://dx.doi.org/10.1299/jsmeicope.2009.3._3-265_.

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2

Pacheco, Marcelo Edral, Vera Maria Martins Salim, and José Carlos Pinto. "Accelerated Deactivation of Hydrotreating Catalysts by Coke Deposition." Industrial & Engineering Chemistry Research 50, no. 10 (May 18, 2011): 5975–81. http://dx.doi.org/10.1021/ie1023595.

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3

Yuan, Ying Hong. "Effects of Nitrogen Deposition on Soil Microbial Biomass, Microbial Functional Diversity and Enzyme Activities in Fir Plantations of Subtropical China." Advanced Materials Research 610-613 (December 2012): 323–30. http://dx.doi.org/10.4028/www.scientific.net/amr.610-613.323.

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The effects of simulated nitrogen (N) deposition on soil microbial biomass, microbial functional diversity and enzyme activities involved in C cycling (sucrase, β-glucosidase, cellulose, amylase, polyphenol oxidase and peroxidase) were studied in southeast Chinese fir plantation (Cunninghamialanceolata (Lamb.)). All soil parameters measured decreased with increasing soil depth. The results indicated that low N (N1) deposition could accelerate soil microbial biomass and functional diversity, but moderate or high N deposition (N2, N3) restrain them. Nitrogen additions promoted soil sucrase, β-glucosidase and cellulase activities, while inhibited soil amylase, polyphenol oxidase and peroxidase activities to some extent, suggesting that decomposition of labile and recalcitrant organic matter were promoted and restricted by extra N deposition, respectively. Changes in microbial community biomass and function under extra N deposition indicated soil ecosystems experienced functional shifts under the current or future condition of human-accelerated N supply.

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4

Li, Jun, and Paul A. Kohl. "The Deposition Characteristics of Accelerated Nonformaldehyde Electroless Copper Plating." Journal of The Electrochemical Society 150, no. 8 (2003): C558. http://dx.doi.org/10.1149/1.1591760.

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5

Wang, P. Z., G. S. Pan, Y. Zhou, J. X. Qu, and H. S. Shao. "Accelerated electrospark deposition and the wear behavior of coatings." Journal of Materials Engineering and Performance 6, no. 6 (December 1997): 780–84. http://dx.doi.org/10.1007/s11665-997-0081-5.

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6

Geng, Shu Hua, Wei Zhong Ding, Shu Qiang Guo, Zhan Fang, and Xiong Gang Lu. "The Study on the Carbon Deposition in H₂-CO Mixtures." Advanced Materials Research 239-242 (May 2011): 445–49. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.445.

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Iron ore reduction and carbon deposition under H2-CO mixtures were investigated by using the non-isothermal method. Iron ore in three different configurations were used in this work: pellet, coarse granularity particles and fine granularity particles. The reduced samples were characterized by using X-ray diffraction (XRD), scanning electron microscopy (SEM) and accelerated surface area and porosimetry System(ASAP 2020M+C). In pure CO, the carbon deposition increases with decreasing of the sample size. In H2-CO mixtures, the rate of carbon deposition is accelerated dramatically. Morphologies of samples treated in different reducing ambinent were investigated. Specific surface area of the treated sample increases with higher level of carbon deposition.

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7

Akedo, Jun. "Aerosol Deposition Method for Fabrication of Nano Crystal Ceramic Layer." Materials Science Forum 449-452 (March 2004): 43–48. http://dx.doi.org/10.4028/www.scientific.net/msf.449-452.43.

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Aerosol deposition method (ADM) for shock-consolidation of fine ceramics powder to form dense and hard layers is reported. Submicron ceramic particles were accelerated by gas flow in the nozzle up to velocity of several hundred m/s. During interaction with substrate, these particles formed thick (10 ~ 100 µm), dense, uniform and hard ceramics layers. Depositions were fulfilled at room temperature. Every layer has polycrystalline structure with nano-meter order scale.􀀂 The results of fabrications, microstructure, mechanical and electrical properties of oxides (α-Al2O3; Pb(Zr0.52,Ti0.48)O3 etc.) and non-oxides materials are presented.

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8

Kurita-Ochiai, Tomoko, and Masafumi Yamamoto. "Periodontal Pathogens and Atherosclerosis: Implications of Inflammation and Oxidative Modification of LDL." BioMed Research International 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/595981.

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Inflammation is well accepted to play a crucial role in the development of atherosclerotic lesions, and recent studies have demonstrated an association between periodontal disease and cardiovascular disease.Porphyromonas gingivalisandAggregatibacter actinomycetemcomitans, causative agents of destructive chronic inflammation in the periodontium, can accelerate atheroma deposition in animal models. Emerging evidence suggests that vaccination against virulence factors of these pathogens and anti-inflammatory therapy may confer disease resistance. In this review, we focus on the role of inflammatory mechanisms and oxidative modification in the formation and activation of atherosclerotic plaques accelerated byP. gingivalisorA. actinomycetemcomitansin an ApoE-deficient mouse model and high-fat-diet-fed mice. Furthermore, we examine whether mucosal vaccination with a periodontal pathogen or the anti-inflammatory activity of catechins can reduce periodontal pathogen-accelerated atherosclerosis.

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9

Müller, Frank A., Lenka Müller, Ingo Hofmann, and Peter Greil. "Accelerated Biomimetic Deposition of Bonelike Apatite on Fibrous Cellulose Templates." Key Engineering Materials 284-286 (April 2005): 183–86. http://dx.doi.org/10.4028/www.scientific.net/kem.284-286.183.

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Fibrous cellulose templates are attractive candidates for the use as tissue engineering scaffolds due to their biocompatibility and the adjustable porosity. Nevertheless, a direct bond between cellulose and bone is not formed under physiological conditions. A simulated body fluid solution with a high degree of supersaturation (5*SBF) was used to accelerate the biomimetic formation of bonelike apatite on cellulose templates. After generating calcium phosphate nuclei on the cellulose fibers in 5*SBF with high Mg2+and HCO3 - concentrations the cellulose templates were immersed in a modified 5*M-SBF which was optimized in respect to crystal growth kinetics by reduced Mg2+and HCO3- concentrations. After 48 hours a hydroxy carbonated apatite (HCA) layer with a thickness of 20 µm was obtained.

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10

Kidane, Argaw, John M. Szabocsik, and Kinam Park. "Accelerated study on lysozyme deposition on poly(HEMA) contact lenses." Biomaterials 19, no. 22 (November 1998): 2051–55. http://dx.doi.org/10.1016/s0142-9612(98)00111-2.

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11

Dhanya, A. C., K. C. Preetha, K. Deepa, and T. L. Remadevi. "Crystalline Indium Sulphide thin film by photo accelerated deposition technique." IOP Conference Series: Materials Science and Engineering 73 (February 17, 2015): 012009. http://dx.doi.org/10.1088/1757-899x/73/1/012009.

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12

Iida, Shoji, Tomomi Nakamura, Yoshimichi Ashimura, and Tomohiro Shindo. "Thin Ag Film Formation by Deposition of Accelerated Ag Ions." Japanese Journal of Applied Physics 34, Part 1, No. 9A (September 15, 1995): 4920–23. http://dx.doi.org/10.1143/jjap.34.4920.

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13

Kajita, Shin, Thomas Morgan, Hirohiko Tanaka, Yuki Hayashi, Naoaki Yoshida, Daisuke Nagata, Jordy Vernimmen, Shuangyuan Feng, Rongshi Zhang, and Noriyasu Ohno. "Accelerated/reduced growth of tungsten fuzz by deposition of metals." Journal of Nuclear Materials 548 (May 2021): 152844. http://dx.doi.org/10.1016/j.jnucmat.2021.152844.

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14

Phuong, Nguyen Lu, Nguyen Dang Khoa, and Kazuhide Ito. "Comparative numerical simulation of inhaled particle dispersion in upper human airway to analyse intersubject differences." Indoor and Built Environment 29, no. 6 (January 8, 2020): 793–809. http://dx.doi.org/10.1177/1420326x19894128.

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This study predicted the total and regional deposition of particles in realistic upper human airways and demonstrated the effects of intersubject variations in deposition fraction. Two airway models were studied under flow rates ranging from 0.45 to 2.4 m3/h and particle aerodynamic diameters from 1 to 10 μm. The total deposition predictions were validated using in vivo and in vitro experimental data. The intricate airway structures generated heterogeneities of airflow distributions and corresponding particle dispersions and depositions in the models. Nevertheless, with modified inertial parameters, the total deposition fraction curves of the two human upper airway models, as functions of flow rates, converged to a single function. However, regional particle deposition fractions differed significantly among the two models. The surface pressure and wall-shear stress distribution were investigated to assess the relationship of surface pressure and wall-shear stress with hotspot locations in upper airways of both models. For one subject (model A), the central nasal passage regions were found to be sites of higher deposition over the range of particle sizes and flow rates targeted in this study. For the other subject (model B), higher deposition was mostly observed in the vestibule region, caused due to particle inertia as the airway consisted of curvatures. The accelerated flow regions acted as a natural filter to high inertial particles. The results indicated that both total and regional depositions exhibited significant intersubject differences.

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15

Li, Ling Li, Guang Li, Jian Ming Jiang, and Yue Wen Guo. "Hydroxyapatite Deposition by Alternate Soaking Technique on Poly (Vinyl Alcohol)-Coated Poly (ε-Caprolactone) (PCL) Substrate." Materials Science Forum 610-613 (January 2009): 1137–42. http://dx.doi.org/10.4028/www.scientific.net/msf.610-613.1137.

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Biomineralization on surface-modified poly (ε-caprolactone) (PCL) through an alternate soaking process was investigated. A poly(vinyl alcohol) (PVA)-coating on PCL substrate prepared by repetitive adsorption/ drying in an aqueous PVA solution could accelerate hydroxyapatite (HA) deposition while PVA-PCL soaked in aqueous solutions containing Ca2+ and PO3-4 ions alternately. Fourier transform infrared (FTIR) and X-ray diffraction of the apatite verified the formed hydroxyapatite in these processes exhibited a close resemblance with calcium phosphates (HA, Ca10(PO4)6(OH)2). It was also found that the amount of HA formed increased with both soaking with both soaking cycles and deposition amount of PVA on PCL. This study suggested that simple PVA coating on PCL substrate could serve as a novel way to accelerated HAP formation via alternating soaking.

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16

Lu, Xiankai, Peter M. Vitousek, Qinggong Mao, Frank S. Gilliam, Yiqi Luo, Guoyi Zhou, Xiaoming Zou, et al. "Plant acclimation to long-term high nitrogen deposition in an N-rich tropical forest." Proceedings of the National Academy of Sciences 115, no. 20 (May 1, 2018): 5187–92. http://dx.doi.org/10.1073/pnas.1720777115.

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Anthropogenic nitrogen (N) deposition has accelerated terrestrial N cycling at regional and global scales, causing nutrient imbalance in many natural and seminatural ecosystems. How added N affects ecosystems where N is already abundant, and how plants acclimate to chronic N deposition in such circumstances, remains poorly understood. Here, we conducted an experiment employing a decade of N additions to examine ecosystem responses and plant acclimation to added N in an N-rich tropical forest. We found that N additions accelerated soil acidification and reduced biologically available cations (especially Ca and Mg) in soils, but plants maintained foliar nutrient supply at least in part by increasing transpiration while decreasing soil water leaching below the rooting zone. We suggest a hypothesis that cation-deficient plants can adjust to elevated N deposition by increasing transpiration and thereby maintaining nutrient balance. This result suggests that long-term elevated N deposition can alter hydrological cycling in N-rich forest ecosystems.

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17

Ayton, Scott, Ibrahima Diouf, and Ashley Ian Bush. "Evidence that iron accelerates Alzheimer’s pathology: a CSF biomarker study." Journal of Neurology, Neurosurgery & Psychiatry 89, no. 5 (September 22, 2017): 456–60. http://dx.doi.org/10.1136/jnnp-2017-316551.

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ObjectiveTo investigate whether cerebrospinal fluid (CSF) ferritin (reporting brain iron) is associated with longitudinal changes in CSF β-amyloid (Aβ) and tau.MethodsMixed-effects models of CSF Aβ1-42 and tau were constructed using data from 296 participants who had baseline measurement of CSF ferritin and annual measurement of CSF tau and Aβ1-42 for up to 5 years.ResultsIn subjects with biomarker-confirmed Alzheimer’s pathology, high CSF ferritin (>6.2 ng/mL) was associated with accelerated depreciation of CSF Aβ1-42 (reporting increased plaque formation; p=0.0001). CSF ferritin was neither associated with changes in CSF tau in the same subjects, nor longitudinal changes in CSF tau or Aβ1-42 in subjects with low baseline pathology. In simulation modelling of the natural history of Aβ deposition, which we estimated to occur over 31.4 years, we predicted that it would take 12.6 years to reach the pathology threshold value of CSF Aβ from healthy normal levels, and this interval is not affected by CSF ferritin. CSF ferritin influences the fall in CSF Aβ over the next phase, where high CSF ferritin accelerated the transition from threshold preclinical Aβ levels to the average level of Alzheimer’s subjects from 18.8 to 10.8 years.ConclusionsIron might facilitate Aβ deposition in Alzheimer’s and accelerate the disease process.

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18

TAHARA, Hirokazu, and Masahiro MORIYAMA. "High Growth-Rate Deposition of Silicon Nitride Using Electromagnetically Accelerated Plasma." Journal of High Temperature Society 31, no. 1 (2005): 76–80. http://dx.doi.org/10.7791/jhts.31.76.

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19

Benjamin, S. F., M. Brogan, T. Collin, W. Disdale, C. A. Roberts, and J. Wei. "Phosphorus deposition on a three-way catalyst under accelerated ageing conditions." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 226, no. 2 (September 13, 2011): 247–59. http://dx.doi.org/10.1177/0954407011414480.

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20

Jensen, Jared W., Sean W. Squire, Jeffrey P. Bons, and Thomas H. Fletcher. "Simulated Land-Based Turbine Deposits Generated in an Accelerated Deposition Facility." Journal of Turbomachinery 127, no. 3 (March 1, 2004): 462–70. http://dx.doi.org/10.1115/1.1860380.

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This report presents a validation of the design and operation of an accelerated testing facility for the study of foreign deposit layers typical to the operation of land-based gas turbines. This facility was designed to produce turbine deposits in a 4-h test that would simulate 10000h of turbine operation. This is accomplished by matching the net foreign particulate throughput of an actual gas turbine. Flow Mach number, temperature and particulate impingement angle are also matched. Validation tests were conducted to model the ingestion of foreign particulate typically found in the urban environment. The majority of this particulate is ceramic in nature and smaller than 10microns in size, but varies up to 80microns. Deposits were formed for flow Mach number and temperature of 0.34 and 1150°C, respectively, using MCrAlY coated coupons donated from industry. Investigations over a range of impingement angles yielded samples with deposit thicknesses from 10to50microns in 4h, accelerated-service simulations. Deposit thickness increased substantially with temperature and was roughly constant with impingement angle when the deposit thickness was measured in the direction of the impinging flow. Test validation was achieved using direct comparison with deposits from service hardware. Deposit characteristics affecting blade heat transfer via convection and conduction were assessed. Surface topography analysis indicated that the surface structure of the generated deposits were similar to those found on actual turbine blades. Scanning electron microscope (SEM) and x-ray spectroscopy analyses indicated that the deposit microstructures and chemical compositions were comparable to turbine blade deposit samples obtained from industry.

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21

Morimitsu, Masatsugu, and Naoyuki Oshiumi. "Accelerated Oxygen Evolution and Suppressed MnOOH Deposition on Amorphous IrO2–Ta2O5Coatings." Chemistry Letters 38, no. 8 (August 5, 2009): 822–23. http://dx.doi.org/10.1246/cl.2009.822.

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22

Meléndez, Giselle C., Jennifer H. Jordan, Ralph B. D’Agostino, Edward J. Lesnefsky, and W. Gregory Hundley. "Accelerated Left Ventricular Interstitial Collagen Deposition After Receiving Doxorubicin in Hypertension." Journal of the American College of Cardiology 72, no. 13 (September 2018): 1555–57. http://dx.doi.org/10.1016/j.jacc.2018.07.028.

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23

Chetelat, G., V. L. Villemagne, N. Villain, G. Jones, K. A. Ellis, D. Ames, R. N. Martins, C. L. Masters, and C. C. Rowe. "Accelerated cortical atrophy in cognitively normal elderly with high -amyloid deposition." Neurology 78, no. 7 (February 1, 2012): 477–84. http://dx.doi.org/10.1212/wnl.0b013e318246d67a.

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24

Azadifar, R., and M. Mahdavi. "Power deposition of deuteron beam in fast ignition." Modern Physics Letters A 32, no. 04 (January 24, 2017): 1750016. http://dx.doi.org/10.1142/s021773231750016x.

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In ion fast ignition (FI) inertial confinement fusion (ICF), a laser accelerated ion beam called igniter provides energy required for ignition of a fuel pellet. The laser accelerated deuteron beam is considered as igniter. The deuteron beam with Maxwellian energy distribution produced at the distance d = 500 [Formula: see text]m, from fuel surface, travels during time t = 20 ps and arrives with power [Formula: see text] to the fuel surface. Then, the deuteron beam deposits its energy into fuel by Coulomb and nuclear interactions with background plasma particles during time t = 10 ps, with power [Formula: see text]. Since time and power of the two stages have same order, to calculate the total power deposited by igniter beam, both stages must be considered simultaneously. In this paper, the exact power of each stage has been calculated separately, and the total power [Formula: see text] has been obtained. The obtained results show that the total power deposition [Formula: see text] is significantly reduced due to reducing different temperature between projectile and target particles.

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25

Struszczyk, Marcin, Wiesława Urbaniak–Domagała, Adam Puszkarz, Bożena Wilbik-Hałgas, Magdalena Cichecka, Sławomir Sztajnowski, Michał Puchalski, Michał Miklas, and Izabella Krucińska. "Structural Changes in the PACVD -Modified Para-Aramid, Ballistic Textiles During the Accelerated Ageing." Fibres and Textiles in Eastern Europe 25 (February 28, 2017): 36–41. http://dx.doi.org/10.5604/01.3001.0010.1708.

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The process of textile modification using Plasma Assisted Chemical Vapour Deposition (PACVD) results in significant changes in surface properties with high effectivity. However, the main problem of the above-mentioned modification is to obtain a stable modification effect during standard use and storage. The aim of the study was to determine the stability of structural properties of PACVD-modified para-aramid ballistic woven fabrics during accelerated ageing using temperature or simultaneously temperature and humidity as the accelerated ageing factors. For identification of potential changes in the textile surface modified by PACVD with deposition of the polymer formed based on tetradecafluorohexane, the ATR-FTIR and SEM/EDS techniques were applied. The PACVD-modified textiles showed insignificant changes in structural properties after accelerated ageing using the above-men -tioned ageing factors. This confirms the stability of the PACVD-resulted modification during simulated conditions of standard use.

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26

HAN, DESHENG, DI LI, and TIANLIANG ZHENG. "INFLUENCE OF Cl- DEPOSITION CONTENT ON CORROSION OF LY12." International Journal of Modern Physics B 20, no. 25n27 (October 30, 2006): 3722–26. http://dx.doi.org/10.1142/s021797920604026x.

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A series of accelerated corrosion tests were conducted in the simulated marine atmosphere environment to study the corrosion of LY12 aluminum alloy under different Cl - deposition content. The change of corrosion morphology, weight gain and electrochemical parameters (Corrosion Electric Potential, AC Impedance) were inspected in the corrosion course. The different corrosion behaviors caused by the variation of Cl - deposition content were also discussed.

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27

Li, Ge, Taiyang Zhang, and Yixin Zhao. "Hydrochloric acid accelerated formation of planar CH3NH3PbI3 perovskite with high humidity tolerance." Journal of Materials Chemistry A 3, no. 39 (2015): 19674–78. http://dx.doi.org/10.1039/c5ta06172e.

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28

Lee, Seung Cheol, Sang Pil Kim, Kwang Real Lee, and Yong Chae Chung. "Local Acceleration Effects of Adatom at the Vicinity on the Surface: Case of Co Nano Thin-Films on Al Surface." Key Engineering Materials 317-318 (August 2006): 581–84. http://dx.doi.org/10.4028/www.scientific.net/kem.317-318.581.

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The local acceleration effects, which are peculiar phenomena during atomic scale deposition process, were investigated byMolecular Dynamics (MD) simulation. The values of local acceleration were distributed widely for various surface orientations. Deposited atoms were accelerated along the potential energy surface, and accelerated values were evidently dependent on the local configuration of the surface. In contrast, the local acceleration became negligibly small for clusters consisting of many atoms.

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29

Talchabhadel, Rocky, Hajime Nakagawa, and Kenji Kawaike. "Sediment management in tidal river: A case study of East Beel Khuksia, Bangladesh." E3S Web of Conferences 40 (2018): 02050. http://dx.doi.org/10.1051/e3sconf/20184002050.

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The widespread construction of coastal embankments limited the natural deposition on the floodplain and accelerated the silt deposition in river channels. It resulted in drainage congestion and large-scale waterlogging problem. The temporary de-poldering is one of the effective methods to solve this issue. During high tide, muddy water enters the selected tidal basin depositing a major portion of sediment and at low tide, relatively clearer water erodes the riverbed. This paper presents a twodimensional numerical model to simulate the mechanism of sediment transport and deposition during the process of controlled flooding. The model was applied to three different scenarios of the embankment cuts in East beel Khuksia, Bangladesh. The study recommends operating single embankment cut at a time if the tidal equilibrium is fulfilled by the opening size of that embankment cut. The developed model can be used to assess the land heightening in sediment-starved tidal basins and ultimately plan the rotation of tidal basins for sustainable sediment management.

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30

Weber, Marc H., Keith S. Hadley, Peter M. Frenzen, and Jerry F. Franklin. "Forest development following mudflow deposition, Mount St. Helens, Washington." Canadian Journal of Forest Research 36, no. 2 (February 1, 2006): 437–49. http://dx.doi.org/10.1139/x05-257.

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Volcanic mudflows are locally important disturbance agents in the Pacific Northwest rarely studied within the context of forest succession. We describe 18 years (19811999) of forest development on the Muddy River mudflow deposit following the 1980 eruption of Mount St. Helens using permanent plot data collected along two transects traversing the Cedar Flats river terrace. We analyze changing forest structure over the study period and compare results with mudflow deposition using correlation and pairwise comparisons, as well as ordination (detrended correspondence analysis) and cluster analysis. Our results show a statistically significant relationship between mudflow deposition and forest change. Following mudflow deposition, the site consisted of patches of high tree mortality caused by deep mudflow deposits in abandoned river channels as well as patches of accelerated regeneration of surviving understory trees in areas of more shallow mudflow deposition and partial overstory mortality. Mudflow deposition at the site initiated multiple stages of stand development with (1) early-colonizing red alder (Alnus rubra Bong.) dominating deep deposition sites with fewer surviving trees, (2) gap recruitment and establishment by western hemlock (Tsuga heterophylla (Raf.) Sarg.) and Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) on intermediate to deep deposition sites with more postburial surviving trees, and (3) late-seral conditions and accelerated succession on shallow burial sites, where tree mortality was low. The initiation of differing succession trajectories, as well as variability in the extent and timing of tree mortality following mudflow deposition, demonstrates a dynamic response to disturbance in relation to small-scale gradients of mudflow deposition.

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31

Li, Y. J., A. Savan, A. Kostka, H. S. Stein, and A. Ludwig. "Accelerated atomic-scale exploration of phase evolution in compositionally complex materials." Materials Horizons 5, no. 1 (2018): 86–92. http://dx.doi.org/10.1039/c7mh00486a.

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Combining nanoscale-tip arrays with combinatorial thin film deposition and processing as well as direct atomic-scale characterization (APT and TEM) enables accelerated exploration of the temperature- and environment-dependent phase evolution in multinary materials systems.

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32

SONG, WOOJIN, KYUBONG JUNG, DOO-MAN CHUN, SUNG-HOON AHN, and CAROLINE SUNYONG LEE. "DEPOSITION OF Al2O3 POWDERS USING NANO-PARTICLE DEPOSITION SYSTEM." Surface Review and Letters 17, no. 02 (April 2010): 189–93. http://dx.doi.org/10.1142/s0218625x10013710.

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In this paper, alumina film was deposited using supersonic micronozzle in nano-particle deposition System (NPDS). Powder deposition at room temperature is important in the field of film deposition since high processing temperature can be a serious limitation for the deposition on flexible substrate. Previously, many studies have been reported on particle deposition, such as aerosol deposition method (ADM) or cold spray method. However, these deposition methods cannot be applied to various types of powders. Recently, NPDS using aluminum nozzle was designed to resolve these problems but it cannot deposit precise patterns less than 1 mm. In this study, alumina particles were deposited using Silicon-based micronozzle in NPDS. Three-dimensional silicon micronozzle was fabricated using semiconductor processing method, specifically deep reactive ion etching (DRIE) method. The silicon micronozzle fabricated by Bosch process is advantageous over the conventionally used nozzle, since the hardness of silicon is higher than that of aluminum and the lifetime can be increased. In this study, alumina nano-particles were accelerated to supersonic level at the neck of micronozzle and deposited on the substrate in a low vacuum condition. The film characteristics were evaluated using field-emission scanning electronic microscope (FE-SEM) and alpha step to measure its thickness of the deposited layer. The deposition result showed that alumina powders were successfully deposited using the fabricated micronozzle by means of NPDS.

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33

Rossnagel, S. M., and J. J. Cuomo. "Ion-Beam-Assisted Deposition and Synthesis." MRS Bulletin 12, no. 2 (March 1987): 40–51. http://dx.doi.org/10.1557/s0883769400068391.

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Concurrent energetic particle bombardment during film deposition can strongly modify the structural and chemical properties of the resulting thin film. The interest in this technique, ion-assisted deposition, comes about because it can be used to produce thin films with properties not achievable by conventional deposition. Bombardment by low energy ions occurs during almost all plasma-based thin film deposition techniques. Bombardment of a growing film, particularly by accelerated ions, can also be combined with non-plasma-based deposition techniques, such as evaporation, to simulate some of the effects observed with sputtering. The bombarding particle flux is usually controllable so that the arrival rate, energy, and species can be independently varied from the depositing flux. Thus, a basic aspect of ion-beam-based deposition techniques is the “control” often absent in plasma-based techniques. In plasmas, the voltage, current, and pressure are all interdependent. The energetic bombardment at the substrate-film interface depends on the various properties of the plasma, as does the deposition rate. It is often difficult, or even impossible, to decouple these processes. With ion-beam-based deposition techniques, the ion bombardment is essentially independent of the deposition process, and both can be more easily controlled.The incident energetic particle contributes some of its energy or momentum to irreversibly change the dynamics of the film surface. The incident particle may also be incorporated into the growing film, changing the film's chemical nature. The changes induced by particle bombardment during deposition are often not characteristic of equilibrium thermodynamics because the incident particle's energy is often many times the local adsorption or binding energy.

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34

Bons, Jeffrey P., Jared Crosby, James E. Wammack, Brook I. Bentley, and Thomas H. Fletcher. "High-Pressure Turbine Deposition in Land-Based Gas Turbines From Various Synfuels." Journal of Engineering for Gas Turbines and Power 129, no. 1 (September 6, 2005): 135–43. http://dx.doi.org/10.1115/1.2181181.

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Ash deposits from four candidate power turbine synfuels were studied in an accelerated deposition test facility. The facility matches the gas temperature and velocity of modern first-stage high-pressure turbine vanes. A natural gas combustor was seeded with finely ground fuel ash particulate from four different fuels: straw, sawdust, coal, and petroleum coke. The entrained ash particles were accelerated to a combustor exit flow Mach number of 0.31 before impinging on a thermal barrier coating (TBC) target coupon at 1150°C. Postexposure analyses included surface topography, scanning electron microscopy, and x-ray spectroscopy. Due to significant differences in the chemical composition of the various fuel ash samples, deposit thickness and structure vary considerably for each fuel. Biomass products (e.g., sawdust and straw) are significantly less prone to deposition than coal and petcoke for the same particle loading conditions. In a test simulating one turbine operating year at a moderate particulate loading of 0.02 parts per million by weight, deposit thickness from coal and petcoke ash exceeded 1 and 2mm, respectively. These large deposits from coal and petcoke were found to detach readily from the turbine material with thermal cycling and handling. The smaller biomass deposit samples showed greater tenacity in adhering to the TBC surface. In all cases, corrosive elements (e.g., Na, K, V, Cl, S) were found to penetrate the TBC layer during the accelerated deposition test. Implications for the power generation goal of fuel flexibility are discussed.

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Fujii, Kazumi, Katsuhito Takahashi, and Masanori Sugawara. "Comparison of Salt Deposition Methods in Accelerated Cyclic Corrosion Test ISO 16539." Zairyo-to-Kankyo 64, no. 10 (2015): 458–61. http://dx.doi.org/10.3323/jcorr.64.458.

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Zi-Chao, Tang, Ren Bin, Huang Rong-Bin, Tian Zhong-Qun, and Zheng Lan-Sun. "Collapsed Deposition of Accelerated C₆₀ Beam on Solid Surfaces." Acta Physico-Chimica Sinica 13, no. 06 (1997): 481–83. http://dx.doi.org/10.3866/pku.whxb19970601.

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Wei, Lan, Hiroo Kawano, Xiaoying Fu, Dan Cui, Sadahiro Ito, Ken-ichi Yamamura, Tokuhiro Ishihara, Takahiko Tokuda, Keiichi Higuchi, and Shuichiro Maeda. "Deposition of transthyretin amyloid is not accelerated by the same amyloidin vivo." Amyloid 11, no. 2 (June 2004): 113–20. http://dx.doi.org/10.1080/13506120410001726344.

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Kiefer, J. "Energy Deposition and the Formation of Biologically Significant Lesions by Accelerated Ions." Radiation Protection Dosimetry 13, no. 1-4 (December 1, 1985): 211–14. http://dx.doi.org/10.1093/rpd/13.1-4.211.

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Kiefer, J. "Energy Deposition and the Formation of Biologically Significant Lesions by Accelerated Ions." Radiation Protection Dosimetry 13, no. 1-4 (December 1, 1985): 211–14. http://dx.doi.org/10.1093/oxfordjournals.rpd.a079580.

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Wang, Yingbo, Ya Gao, Guoqiang Xu, Han Liu, Yi Xiang, and Wenguo Cui. "Accelerated fabrication of antibacterial and osteoinductive electrospun fibrous scaffolds via electrochemical deposition." RSC Advances 8, no. 17 (2018): 9546–54. http://dx.doi.org/10.1039/c8ra01011k.

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Sidorchuk, A. Yu. "THE FLUVIAL SYSTEM ON THE EAST EUROPEAN PLAIN: SEDIMENT SOURCE AND SINk." GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY 11, no. 3 (September 29, 2018): 5–20. http://dx.doi.org/10.24057/2071-9388-2018-11-3-05-20.

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The modern fluvial system on the lowland East European Plain is of depositional type. Sediment transport to the seas is only a few percent of the total erosion, and the main part of eroded material is accumulated in the channels. The recent deposition of suspended sediments is caused by accelerated soil erosion on the arable slopes, which led to a high rate of lateral sediment input and deposition at the river headwaters and on the floodplains. The process of accumulation is facilitated by the unfilled “negative” volume of the net of dry valleys formed during the Late Glacial catastrophic erosion event. Such events of catastrophic erosion of the sediments deposited in the lowland fluvial systems occur with a frequency of 100-120 thousand years. In the conditions of both scarce vegetation and extremal surface runoff, the entire fluvial systems become the area of intensive erosion, with the deep incision of gullies and of the river channels. Therefore, despite the modern intensive deposition, delivery ratio for the fluvial systems on this lowland territory is close to one in the long-term perspective.

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Nishi, Hiroyasu, and Tetsu Tatsuma. "Accelerated site-selective photooxidation on Au nanoparticles via electrochemically-assisted plasmonic hole ejection." Nanoscale 11, no. 41 (2019): 19455–61. http://dx.doi.org/10.1039/c9nr05988a.

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Deposition of PbO₂ and dissolution of Au are electrochemically driven at selected sites of Au nanoparticles on a transparent electrode on the basis of hole ejection from the plasmonic resonance sites.

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43

Dhanasekaran, P., Sharon R. Williams, D. Kalpana, and Santoshkumar D. Bhat. "Boosting efficiency and stability using zirconia nanosphere-held carbon for proton exchange membrane fuel cells." RSC Advances 8, no. 1 (2018): 472–80. http://dx.doi.org/10.1039/c7ra10509f.

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Corrosion during the accelerated stress test for Pt on carbon and Pt on Zr–C 3 composite representing the steps for reduced carbon corrosion, stabilized Pt nanoparticles and re-deposition of Pt nanoparticles on the ZrO₂:C composite.

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Carrié, Michaël, and Erik Lefebvre. "Focusing of laser-accelerated proton beams using curved targets, and improved energy deposition." High Energy Density Physics 7, no. 4 (December 2011): 353–60. http://dx.doi.org/10.1016/j.hedp.2011.07.001.

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Iida, S., T. Shindo, S. Matsuura, and Y. Ashimura. "Effects of accelerated ion beam deposition to form thin metal films on silicon." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 121, no. 1-4 (January 1997): 162–65. http://dx.doi.org/10.1016/s0168-583x(96)00441-7.

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Tshabalala, Mandla A., and John E. Gangstad. "Accelerated weathering of wood surfaces coated with multifunctional alkoxysilanes by sol-gel deposition." Journal of Coatings Technology 75, no. 8 (August 2003): 37–43. http://dx.doi.org/10.1007/bf02730098.

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Gunnarsdóttir, Anna B., Sundeep Vema, Svetlana Menkin, Lauren E. Marbella, and Clare P. Grey. "Investigating the effect of a fluoroethylene carbonate additive on lithium deposition and the solid electrolyte interphase in lithium metal batteries using in situ NMR spectroscopy." Journal of Materials Chemistry A 8, no. 30 (2020): 14975–92. http://dx.doi.org/10.1039/d0ta05652a.

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An in situ NMR study of Li deposition and the SEI on Li metal. Isotope exchange measurements reveal the fast transport properties in the SEI formed with FEC and the accelerated SEI formation rate, in part explaining the homogeneous electrodeposition using FEC additives.

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Pilan Zanoni, André, Jose Antonio Briz Monago, and Marco Calviani. "Thermal performance and redesign of beam stoppers under superficial heat transfer from intense ion beams in matter." MATEC Web of Conferences 240 (2018): 01039. http://dx.doi.org/10.1051/matecconf/201824001039.

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In the Linear accelerator 3 (Linac 3) and Low Energy Ion Ring (LEIR) at CERN dedicated beam stoppers intercept ion beams for machine and personnel protection whenever required. The interaction of accelerated ions and the stopper induces through-thickness heat deposition in the stopper material as deep as a few hundreds of micrometers. Following a multi-layered geometrical discretization this paper discusses the thermal and structural performance of the stoppers under different ion beams (Pb, Xe, Ar). Design considerations based on the projected range of different ions in target materials (aluminum, steel and copper alloys) are discussed. An improved design for ion stoppers based on thermo-structural performance and projected range is proposed.

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Liu, X., J. Xu, H. L. Liu, J. Yue, and W. Yuan. "Simulations of large winds and wind shears induced by gravity wave breaking in the mesosphere and lower thermosphere (MLT) region." Annales Geophysicae 32, no. 5 (May 23, 2014): 543–52. http://dx.doi.org/10.5194/angeo-32-543-2014.

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Abstract. Using a fully nonlinear two-dimensional (2-D) numerical model, we simulated gravity waves (GWs) breaking and their contributions to the formation of large winds and wind shears in the mesosphere and lower thermosphere (MLT). An eddy diffusion coefficient is used in the 2-D numerical model to parameterize realistic turbulent mixing. Our study shows that the momentum deposited by breaking GWs accelerates the mean wind. The resultant large background wind increases the GW's apparent horizontal phase velocity and decreases the GW's intrinsic frequency and vertical wavelength. Both the accelerated mean wind and the decreased GW vertical wavelength contribute to the enhancement of wind shears. This, in turn, creates a background condition that favors the occurrence of GW instability, breaking, and momentum deposition, as well as mean wind acceleration, which further enhances the wind shears. We find that GWs with longer vertical wavelengths and faster horizontal phase velocity can induce larger winds, but they may not necessarily induce larger wind shears. In addition, the background temperature can affect the time and height of GW breaking, thus causing accelerated mean winds and wind shears.

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Zhang, Yujin, Joseph Jeffrey, Fei Dong, Jianhua Zhang, Winston W. Y. Kao, Chia-Yang Liu, and Yong Yuan. "Repressed Wnt Signaling Accelerates the Aging Process in Mouse Eyes." Journal of Ophthalmology 2019 (June 17, 2019): 1–11. http://dx.doi.org/10.1155/2019/7604396.

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Purpose. Ocular aging is a natural process of functional decline in vision. When the process reaches a point that compromised vision affects normal daily activity, it manifests as age-related ocular diseases, such as age-related macular degeneration, cataracts, glaucoma, and pseudoexfoliation syndrome. We previously reported that repressed Wnt signaling accelerated the maturation of corneal epithelium during tissue development. Here, we explore the hypothesis that repressed Wnt signaling is associated with accelerated aging in mouse eyes. Methods. Wnt ligand antagonist secreted frizzled-related protein 1 (sFRP1) was expressed in the corneal stroma by a tissue-specific, inducible, bitransgenic system. Tissue structure was analyzed for signs of aging. Signal transduction analysis was performed to determine the cellular response to sFRP1. Results. Mouse eyes with sFRP1 expression showed signs of accelerated aging, resembling those found in pseudoexfoliation (PEX) syndrome, a known age-related disease. Specific findings include granular deposition on the surface of the anterior lens capsule, pigment loss from the anterior surface of the iris, the presence of fibrillary material in the anterior chamber, and changes in cell size (polymegethism) and shape (pleomorphism) of the corneal endothelial cells. In vitro studies demonstrated that sFRP1 did not inhibit Wnt5a function and that cells responded to sFRP1 and Wnt5a in a very similar manner. Conclusion. The expression of sFRP1 accelerates the aging process in mouse eyes and future studies are warranted to elucidate the underlying mechanisms.

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