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Thematische Bibliographien / Tail surface test / Zeitschriftenartikel

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Zeitschriftenartikel zum Thema „Tail surface test“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 29. Juli 2025

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1

Gao, Zong Jun, Jia Guo Ren, Jia Liang Li, et al. "The Comprehensive Test for Geothermal Tail-Water Disposal." Advanced Materials Research 403-408 (November 2011): 4522–27. http://dx.doi.org/10.4028/www.scientific.net/amr.403-408.4522.

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Geothermal reservoirs and groundwater resources in layered porous media in large sedimentary basins have enormous exploitation potential because of their extensive distribution, great quantity, and feasible temperatures and drilling depths. The discharge of geothermal wastewater (i.e. tail-water) on the surface is a serious environmental issue because of its high salinity content, so the Bureau of Geology Exploration and Mineral Resources Exploitation in Shandong Province, China called for the study of the disposal technique of the geothermal tail-water. The disposal test process is as follows

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Nicassio, Francesco, and Gennaro Scarselli. "Simulation and Test of Discrete Mobile Surfaces for a RC-Aircraft." Aerospace 6, no. 11 (2019): 122. http://dx.doi.org/10.3390/aerospace6110122.

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Morphing structures suitable for unmanned aerial vehicles (UAVs) have been investigated for several years. This paper presents a novel lightweight, morphing concept based on the exploitation of the “lever effect” of a bistable composite plate that can be integrated in an UAV horizontal tail. Flight dynamics equations are solved in Simulink environment, thus being able to simulate and compare different flight conditions with conventional and bistable command surfaces. Subsequently, bistable plates are built by using composite materials, paying particular attention to dimensions, asymmetric stac

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Jung, Sook Heui. "The Antidepressant Effects of Domestic Natural Mixed Fragrance Ingredients in Animal Models." STRESS 31, no. 2 (2023): 59–64. http://dx.doi.org/10.17547/kjsr.2023.31.2.59.

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Background: This study used inhalation toxicity experiments, open field experiments, and tail suspension tests to investigate the antidepressant effect of a combination of nine types of refined oils extracted from domestic native plants.Methods: Non-irritability was confirmed through an inhalation toxicity test, locomotor activity was measured using an open field test, and the antidepressant effect was assessed by measuring immobility time during a tail suspension test.Results: The inhalation toxicity test confirmed that both samples were non-stimulated with a negative stimulation index of 0.0

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Yang, G. W., Y. L. Shen, J. Liu, and Y. Y. Xie. "Study on fatigue life of gun latch based on orthogonal test method." Journal of Physics: Conference Series 2478, no. 9 (2023): 092008. http://dx.doi.org/10.1088/1742-6596/2478/9/092008.

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Abstract Aiming at the problem of fatigue damage of gun latch caused by long-term impact load, the fatigue life of gun latch was studied. Firstly, the finite element model of gun latch was established by using finite element method. Secondly, the static strength and fatigue life of the gun latch were calculated based on S-N curve and Miner’s linear damage accumulation theory. On this basis, the structural factors affecting the fatigue life of the bolt were analyzed, and four factors including the radial diameter of the latch, the axial bearing thickness of the latch, the spiral Angle of the la

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Warguła, Łukasz, Bartosz Wieczorek, and Mateusz Kukla. "The selection of the tail lift parameters." AUTOBUSY – Technika, Eksploatacja, Systemy Transportowe 20, no. 1-2 (2019): 364–67. http://dx.doi.org/10.24136/atest.2019.067.

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People moving on wheelchairs overcome the forces of resistance such as: air resistance, resistance of the ascent, inertia force and rolling resistance force. Under certain conditions of use of the wheelchair, the only resistance that must overcome the driving force during the movement is the rolling resistance force. This situation occurs during uniformly rectilinear movement, on a flat level surface at speeds of up to 20 km/h, because at this speed the air resistance is negligible. Rolling resistance is mainly influenced by the mass of the rolling object and the rolling resistance coefficient

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Chen, Jianzhong. "Research on Abnormal Geometric Similarity Design Method of a Missile with Tail Rudder Model in High Speed Wind Tunnel." Journal of Physics: Conference Series 2252, no. 1 (2022): 012018. http://dx.doi.org/10.1088/1742-6596/2252/1/012018.

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Abstract Geometric similarity is an important similarity laws for the experimental study on aerodynamic characteristics of wind tunnel models. General aspect the ratio of missile body length to rudder surface aspect length is large. The test model is designed according to the complete geometric similarity scale. It is often difficult to match the length aspect ratio size in the limited space of the wind tunnel test section. Based on this problem, the abnormal geometric similarity design method of the missile body under the condition of fixed tail rudder is studied by numerical simulation. The

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Chen, Jianzhong. "Research on Abnormal Geometric Similarity Design Method of a Missile with Tail Rudder Model in High Speed Wind Tunnel." Journal of Physics: Conference Series 2252, no. 1 (2022): 012018. http://dx.doi.org/10.1088/1742-6596/2252/1/012018.

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Abstract Geometric similarity is an important similarity laws for the experimental study on aerodynamic characteristics of wind tunnel models. General aspect the ratio of missile body length to rudder surface aspect length is large. The test model is designed according to the complete geometric similarity scale. It is often difficult to match the length aspect ratio size in the limited space of the wind tunnel test section. Based on this problem, the abnormal geometric similarity design method of the missile body under the condition of fixed tail rudder is studied by numerical simulation. The

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Fratto, Melanie A., and Andrew K. Davis. "Do black-furred animals compensate for high solar absorption with smaller hairs? A test with a polymorphic squirrel species." Current Zoology 57, no. 6 (2011): 731–36. http://dx.doi.org/10.1093/czoolo/57.6.731.

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Abstract In polymorphic mammalian species that display multiple color forms, those with dark, or melanic pelage would be prone to overheating, especially if they live in warm climates, because their fur absorbs solar energy at a higher rate. However, experimental studies indicate that certain physical properties of fur of dark individuals appear to prevent, or minimize heat stress, although it is not clear what properties do so. Here, we tested the possibility that black-furred individuals simply have shorter or thinner hair fibers, which would create a lighter (in terms of weight) coat or one

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Khan, Abid Ali, Muhammad Arif Ashraf, Asim Shehzad, Abroon Jamal Qazi, and Imran Hayat. "Computational and experimental studies of horizontal tail flutter suppression." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 233, no. 1 (2017): 34–43. http://dx.doi.org/10.1177/0954410017725363.

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Flutter is an extremely violent instability that may result in catastrophic failure. Thus, flutter clearance test is one of the critical phases in qualification of an aircraft’s airworthiness. During design and development process of an aircraft, flutter problems were experienced on an aerodynamic surface (horizontal tail). In order to tackle the observed problem, a number of approaches to optimize the design for flutter speed were computationally and experimentally studied and evaluated. This paper presents and discusses the outcomes of these studies. A hybrid approach based on evaluations an

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Gao, Zhenxing, Debao Wang, and Zhiwei Xiang. "A Method for Estimating Aircraft Vertical Acceleration and Eddy Dissipation Rate in Turbulent Flight." Applied Sciences 10, no. 19 (2020): 6798. http://dx.doi.org/10.3390/app10196798.

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Atmospheric turbulence is a typical risk that threatens the flight safety of civil aviation aircraft. A method of estimating aircraft’s vertical acceleration in turbulence is proposed. Based on the combination of wing and horizontal tail, the continuous change of aerodynamic force in turbulent flight is obtained by unsteady vortex ring method. Vortex rings are assigned on the mean camber surface to further improve the computing accuracy. The incremental aerodynamic derivatives of lift and pitching moment are developed, which can describe the turbulence effects on aircraft. Furthermore, a new a

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Lei, Junle, Zhaochong Liu, Danni Ren, et al. "Discrete elemental parameter calibration of stacking behavior of sugarcane tail leaf sieved material." BioResources 18, no. 3 (2023): 4834–49. http://dx.doi.org/10.15376/biores.18.3.4834-4849.

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To improve the accuracy of discrete element simulation parameters of sugarcane tail-leaf (STL) feed during dust removal and crushing, this study used a combination of physical tests and EDEM software simulations to calibrate the discrete element simulation parameters of crumbs and dust in the feed. Taking the experimental physical stacking angle (SA) as the response value, the second-order regression models of SA and significant factors were established by Plackett-Burman test, steepest climb test, and Box-Behnken test. Variance analysis and interaction effect analysis were conducted. Taking t

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Lei, Junle, Dingyuan Lei, Shuaiwei Wang, and Zhaochong Liu. "Stress relaxation characteristics of crushed cane tail straw." BioResources 18, no. 1 (2022): 143–60. http://dx.doi.org/10.15376/biores.18.1.143-160.

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To gain insight into the mechanical properties of crushed sugarcane tail leaves during stress relaxation, a self-made compression equipment was used in this study. The variation law of different factors on the stress relaxation process of crushed cane tail was explored and a stress relaxation model was established. The three-element and five-element generalized Maxwell models were selected to fit the regression analysis of the stress relaxation curve of the crushed cane tail. The comparison showed that the determination coefficient R2 of the five-element stress relaxation model was higher, and

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Li, Gang, Kai Pang, Lan Chi, Chang Xiang Liu, Li Jiang, and Li Qun Mo. "Experimental Study on Performance of Phase Change Thermal Storage Kang." Applied Mechanics and Materials 525 (February 2014): 451–56. http://dx.doi.org/10.4028/www.scientific.net/amm.525.451.

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In this paper, the author build a new type of Kang with paraffin as its heating surface. Paraffin is a kind of phase change material ,which can stroage and release heat at a relatively constant temperature. It can make full use of the heat of the smoke in the Kang and extend the Kang heating period. We do comparison test of the the traditional Kang room and the phase change Kang room and related temperature was recorded. The tested result shows that the average temperature of the head, medium and tail of traditional Kang varies greatly,the maximum difference of the temperature is over 20°C. Wh

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Nadar, Y. E., and A. P. Nugroho. "Combined Effect of Pesticides Containing Active Ingredients of Chlorpyrifos and Mancozeb on the DNA Damage of Chlorella Sorokiniana Shihira and Krauss." Jurnal Pendidikan IPA Indonesia 11, no. 4 (2022): 640–48. http://dx.doi.org/10.15294/jpii.v11i4.39619.

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The intensive use of pesticides in agricultural areas can leave residues of pesticide mixtures on the soil surface. Surface run-off can carry pesticide residues, enter water bodies, and then may affect non-target organisms. Chlorpyrifos and mancozeb are active ingredients commonly contained in pesticides applied in shallot farming. This study aims to evaluate the combined effect of pesticides containing active ingredients of chlorpyrifos and mancozeb on the growth and DNA damage of the microalgae Chlorella sorokiniana. The test organism was exposed to the combined concentration of chlorpyrifos

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Tang, Yong, Liang Liang, You Xia Pang, Zong Ming Zhu, and Yan Xu. "Research of Erosion, Cavitation and Their Interactive Wears of Fluid Machinery Three-Phase Flow." Applied Mechanics and Materials 212-213 (October 2012): 1261–66. http://dx.doi.org/10.4028/www.scientific.net/amm.212-213.1261.

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There are erosion and cavitation in the wear of flow passage components of fluid machinery at the same time. With simulating the working conditions of hydraulic turbine, this paper studies the flow field (pressure field and fluid concentration distribution) of vapor-liquid-solid three-phase on the surface of test rotary table when there are erosion, cavitation and interactive wear on the test rotary table under different environmental pressure with computational fluid dynamics i.e. CFD method, and erosion and cavitation interactive wear test is made on the rotary wear test-bed. The results sho

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Kern, Martin, Perry Bartelt, Betty Sovilla, and Othmar Buser. "Measured shear rates in large dry and wet snow avalanches." Journal of Glaciology 55, no. 190 (2009): 327–38. http://dx.doi.org/10.3189/002214309788608714.

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AbstractWe present estimates of internal shear rates of real-scale avalanches that are based on velocity measurements. Optical velocity sensors installed on the instrument pylon at the Swiss Vallée de la Sionne test site are used to measure flow velocities at different flow heights of three large dry and wet snow avalanches. Possible sources of error in the correlation analysis of the time-lagged reflectivity signals measured by optical sensors are identified for real-size avalanches. These include spurious velocities due to noise and elongated peaks. An appropriate choice of the correlation l

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Xiao, Kanyan, Jennifer Garner, Kathleen M. Buckley, et al. "p120-Catenin Regulates Clathrin-dependent Endocytosis of VE-Cadherin." Molecular Biology of the Cell 16, no. 11 (2005): 5141–51. http://dx.doi.org/10.1091/mbc.e05-05-0440.

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VE-cadherin is an adhesion molecule critical to vascular barrier function and angiogenesis. VE-cadherin expression levels are regulated by p120 catenin, which prevents lysosomal degradation of cadherins by unknown mechanisms. To test whether the VE-cadherin cytoplasmic domain mediates endocytosis, and to elucidate the nature of the endocytic machinery involved, the VE-cadherin tail was fused to the interleukin (IL)-2 receptor (IL-2R) extracellular domain. Internalization assays demonstrated that the VE-cadherin tail dramatically increased endocytosis of the IL-2R in a clathrin-dependent manner

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Jønholt, Lisa, Cathrine Juel Bundgaard, Martin Carlsen, and Dorte Bratbo Sørensen. "A Case Study on the Behavioural Effect of Positive Reinforcement Training in a Novel Task Participation Test in Göttingen Mini Pigs." Animals 11, no. 6 (2021): 1610. http://dx.doi.org/10.3390/ani11061610.

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In laboratory animal research, many procedures will be stressful for the animals, as they are forced to participate. Training animals to cooperate using clicker training (CT) or luring (LU) may reduce stress levels, and thereby increase animal welfare. In zoo animals, aquarium animals, and pets, CT is used to train animals to cooperate during medical procedures, whereas in experimental research, LU seem to be the preferred training method. This descriptive case study aims to present the behaviour of CT and LU pigs in a potentially fear-evoking behavioural test—the novel task participation test

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Worth, R. G., L. Mayo-Bond, J. G. van de Winkel, R. F. Todd, and H. R. Petty. "CR3 (alphaM beta2; CD11b/CD18) restores IgG-dependent phagocytosis in transfectants expressing a phagocytosis-defective Fc gammaRIIA (CD32) tail-minus mutant." Journal of Immunology 157, no. 12 (1996): 5660–65. http://dx.doi.org/10.4049/jimmunol.157.12.5660.

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Abstract Previous studies have suggested that complement receptors cooperate with Fc receptors to mediate Ab-dependent effector functions. In the present study, we tested the capacity of complement receptor type 3 (CR3; alphaM beta2; CD11b/CD18) to participate in Fc gammaRIIA (CD32)-mediated phagocytosis. To test this hypothesis, we transfected a phagocytosis-defective tail-minus mutant of Fc gammaRIIA into fibroblasts that did or did not express CR3. As controls, cells exposed to the transfection protocol but not expressing either CR3 or Fc gammaRIIA constructs were also selected. Expression

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Chen, Yanxin, Xuyang Fan, Bo Zhao, and Leilei Zhang. "Numerical Simulation of Pre-Reduction for a New Process of Acid Production from Phosphogypsum by Gas Sulfur Reduction." Processes 11, no. 3 (2023): 972. http://dx.doi.org/10.3390/pr11030972.

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The gas sulfur reduction of phosphogypsum in the acid co-production of sulfoaluminate cement clinker is a new process for treating phosphogypsum. The reduction furnace of this system was studied and analyzed by combining computational fluid dynamics (CFD) and experimental validation. The effects of n(CaSO4)/n(S2), particle residence time, and kiln tail flue gas temperature on the performance of the reduction furnace were obtained. A second-order response model based on the response surface methodology was developed using a three-factor Box–Behnken design (BBD). The results show that the compar

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Troncoso, Renata J., Daniel E. Herzberg, Constanza S. Meneses, Heine Y. Müller, Marianne P. Werner, and Hedie Bustamante. "Mechanical/thermal sensitivity and superficial temperature in the stump of long-term tail-docked dairy cows." PeerJ 6 (July 18, 2018): e5213. http://dx.doi.org/10.7717/peerj.5213.

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BackgroundTail docking of dairy cows is a painful procedure that affects animal welfare level. The aims of this study were first to evaluate the response to mechanical and thermal stimulation, and second to determine the superficial temperature of the stump of tail-docked dairy cows.MethodsOne hundred and sixty-four dairy cows were enrolled. From these, 133 cows were assigned to the tail-docked (TD) group and 31 cows were selected as control animals. The following sensory assessments to evaluate pain in tail-docked cows were performed. Sensitivity of the tail region in both groups of animals w

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Ezike, Christopher Onyemaechi, Chinwe Uwadiegwu, and Aderonke N. Agbo. "Acute Toxicity and Stress Behaviour of Heterobranchus bidorsalis Exposed to the Detergent Nittol® NTL." J 6, no. 1 (2023): 172–79. http://dx.doi.org/10.3390/j6010013.

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The acute toxicity of the detergent Nittol® 0.8, 1.0, 1.2, 1.4, 1.6, and 0.0 mg NTL/L of clean water on Heterobrunchus bidorsalis, 5.5 ± 0.3 g, 6.4 ± 0.5 cm were investigated, using semi-static bioassay, for 96 h in 50 L capacity plastic test bowls. The fingerlings of the same brood stock and age were collected from Onose Farms Limited, Ughelli, Delta State to the University Research Laboratory, Enugu Lat. 7.4 N; 8°7′5 and long 6°8′ E. 7°6′ W. The test fish were acclimatized for 14 days, and fed at 3% body weight once daily, on a 40% CP commercial diet. Feeding was suspended 24 h before and du

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Petersen, Inga, Ana Godec, Farahnaz Ranjbarian, Anders Hofer, Claudio Mirabello та Greta Hultqvist. "A charged tail on anti-α-Synuclein antibodies does not enhance their affinity to α-Synuclein fibrils". PLOS ONE 19, № 8 (2024): e0308521. http://dx.doi.org/10.1371/journal.pone.0308521.

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The aggregation of α-Synuclein (αSyn) is strongly linked to neuronal death in Parkinson’s disease and other synucleinopathies. The spreading of aggregated αSyn between neurons is at least partly dependent on electrostatic interactions between positively charged stretches on αSyn fibrils and the negatively charged heparan sulphate proteoglycans on the cell surface. To date there is still no therapeutic option available that could halt the progression of Parkinson’s disease and one of the major limitations is likely the relatively low proportion of αSyn aggregates accessible to drugs in the extr

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Man, Zhiqiang, and Wenxiang Wu. "Study on the Synthesis, Surface Activity, and Self-Assembly Behavior of Anionic Non-Ionic Gemini Surfactants." Molecules 29, no. 8 (2024): 1725. http://dx.doi.org/10.3390/molecules29081725.

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The use of surfactants in oil recovery can effectively improve crude oil recovery rate. Due to the enhanced salt and temperature resistance of surfactant molecules by non-ionic chain segments, anionic groups have good emulsifying stability. Currently, there are many studies on anionic non-ionic surfactants for oil recovery in China, but there is relatively little systematic research on introducing EOs into hydrophobic alkyl chains, especially on their self-assembly behavior. This article proposes a simple and effective synthesis method, using 3-aminopropane sulfonic acid, fatty alcohol polyoxy

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Cusati, Vincenzo, Salvatore Corcione, Danilo Ciliberti, and Fabrizio Nicolosi. "Design Evolution and Wind Tunnel Tests of a Three-Lifting Surface Regional Transport Aircraft." Aerospace 9, no. 3 (2022): 133. http://dx.doi.org/10.3390/aerospace9030133.

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This paper deals with the experimental assessment of the aerodynamic characteristics of an innovative large turboprop aircraft. The configuration is a three-lifting surfaces airplane with rear engine installation at tail tips, conceived to carry up to 130 passengers and targeting a minimum economic and environmental impact, which is competitive with regional jets on short and medium hauls. The three-lifting surfaces layout is the output of previous research made by the authors, and it has been selected to fully comply with the market and design constraints. An experimental test campaign was re

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Schweiger, J., F. Weiss, and S. K. Dobbs. "Aeroelastic design and flight test evaluation of the Ranger 2000 training aircraft." Aeronautical Journal 100, no. 998 (1996): 341–50. http://dx.doi.org/10.1017/s000192400006704x.

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AbstractThe paper describes the aeroelastic analysis for the design, the ground verification tests and the flight test programme, for the Ranger 2000 training aircraft, developed jointly by Dasa and Rockwell International between 1991 and 1994, as a competitor for the next generation US Air Force and Navy Joint Primary Advanced Training System (JPats). Special efforts with respect to the aeroelastic stability were required for the T-tail configuration, for the design of the manual flight control system, and for the establishment of sufficient mass balance for the control surfaces. Several grou

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Ramsey, P. M., and T. F. Page. "Interaction between High Speed Nylon Fiber and Unlubricated Ceramic Textile Guides." Textile Research Journal 62, no. 12 (1992): 715–28. http://dx.doi.org/10.1177/004051759206201204.

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The friction and wear behavior of alumina and titania textile guides in contact with high speed, dry nylon filaments has been studied using a novel, on-line, friction measuring device. The titania guides were worn very quickly to produce smooth grooves, which resulted in a large increase in fiber-guide friction. The alumina guides showed no appreciable wear during the short 1 hour tests, but a large amount of polymer deposit was produced. The morphology of the deposit was determined by the alumina guide topography. The smoother guides were smeared with polymer over the contact region. This adh

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Rajamuneeswaran, S., S. Jayabal, N. Nagaprasad, G. Veerappan, Leta Tesfaye Jule, and Ramaswamy Krishnaraj. "Artificial Neural Network Modeling of Abrasion Loss and Surface Roughness of Crab Carapace Impregnated Coir Vinyl Ester Composites." Advances in Materials Science and Engineering 2022 (April 13, 2022): 1–8. http://dx.doi.org/10.1155/2022/2158210.

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Roughness plays an important role in determining how an object would be related with its environment. In tribology, rough surfaces easily obtain wear more quickly and have higher friction coefficients than smooth surfaces. Roughness is often a good analyzer of the performance of a mechanical component. This investigation is aimed to study the abrasion loss and surface roughness behaviors in crab carapace-filled coir fiber reinforced vinyl ester composites. The development of filler-impregnated fiber-polymer composites in recent years necessitated the evaluation and prediction of tribological b

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DAHLVIK, PETER, GUILLERMO BLUVOL, KARL-HEINZ KAGERER, MANFRED ARNOLD, and DAN VARNEY. "Influence of topcoat pigment particle size distribution on tail-edge pick resistance in sheet-fed offset printing." June 2012 11, no. 6 (2012): 51–58. http://dx.doi.org/10.32964/tj11.6.51.

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This paper describes ground calcium carbonate pigment particle size distribution and its influence on the tail-edge picking of pilot-coated paper as determined in full-scale sheet-fed offset printing. A tailor-made method was developed using a modified printing plate and high-tack inks to assess surface strength in terms of edge picking. In addition to the type, fineness, and particle size distribution of the ground calcium carbonate pigment, we also evaluated the solids content of the coating color, binder level, clay usage, and calendering. The printing test method provided differentiation r

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Rohini, P. "Diclofenac Induced Genotoxicity in the Gill Tissue of Channa Punctatus." Biolife 10, no. 3 (2022): 1–6. https://doi.org/10.5281/zenodo.7079920.

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<strong>P</strong>harmaceuticals have emerged as priority pollutants in recent times. The enormous usage of these drugs has led to pollution of the aquatic systems all over the globe. Diclofenac is the most widely prescribed non-steroidal anti inflammatory drug. The drug Diclofenac has been detected in surface waters in the magnitude of ng/L to µg/L. There are many investigations on the toxicity of the drug Diclofenac in aquatic flora and fauna. This study aims to examine diclofenac induced genotoxicity in the gill tissue of <em>Channa punctatus. </em>The acute toxicity test was conducte

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Edelstein, Jerry, and Stuart Bowyer. "EUV Observations of Pulsars." International Astronomical Union Colloquium 160 (1996): 291–95. http://dx.doi.org/10.1017/s0252921100041749.

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AbstractThree pulsars have been detected with the Lexan (100 Å )filter of the EUVE Deep Survey telescope: the middle-aged isolated pulsars, PSR B0656+14 and Geminga, plus the aged millisecond pulsar PSR J0437–4715. The EUV detections have been used both alone and in combination with observations in other bandpasses to limit the physical state of the objects and to test theories regarding neutron star cooling and re-heating mechanisms. For Geminga, the EUVE data suggests the presence of an optical cyclotron spectral feature superimposed on the Rayleigh-Jeans continuum tail from a hot pulsar sur

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Mahdi Sajedi, Sayyed, Parviz Ghadimi, Mohammad Sheikholeslami, and Mohammad A. Ghassemi. "Experimental and numerical analyses of wedge effects on the rooster tail and porpoising phenomenon of a high-speed planing craft in calm water." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 233, no. 13 (2019): 4637–52. http://dx.doi.org/10.1177/0954406219833722.

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This paper presents experimental and numerical investigation of stability and rooster tail of a mono-hull high-speed planing craft with a constant deadrise angle. Initially, a one-fifth scale model was tested in a towing tank, which showed porpoising phenomenon at 8 m/s (equal to the speed of sailing). Subsequently, two wedges of 5 and 10 mm heights, based on the boundary layer calculations, were mounted on the aft section of the planing hull. These wedges were shown to increase the lift at the aft section. These experiments were carried out at different speeds up to 10 m/s in calm water. The

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Pasieka, Tracy Jo, Lucie Maresova, Kimiyasu Shiraki, and Charles Grose. "Regulation of Varicella-Zoster Virus-Induced Cell-to-Cell Fusion by the Endocytosis-Competent Glycoproteins gH and gE." Journal of Virology 78, no. 6 (2004): 2884–96. http://dx.doi.org/10.1128/jvi.78.6.2884-2896.2004.

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ABSTRACT The gH glycoprotein of varicella-zoster virus (VZV) is a major fusogen. The realigned short cytoplasmic tail of gH (18 amino acids) harbors a functional endocytosis motif (YNKI) that mediates internalization in both VZV-infected and transfected cells (T. J. Pasieka, L. Maresova, and C. Grose, J. Virol. 77: 4194-4202, 2003). During subsequent confocal microscopy studies of endocytosis-deficient gH mutants, we observed that cells transfected with the gH tail mutants exhibited marked fusion. Therefore, we postulated that VZV gH endocytosis served to regulate cell-to-cell fusion. Subseque

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Rahman, Tauhidur, Berihun Mamo Negash, Muhammad Moniruzzaman, Eswaran Padmanabhan, and Quainoo Kwamena Ato. "Performance Evaluation of 1-Butyl-3-Methylimidazolium Chloride as Shale Swelling Inhibitor." IOP Conference Series: Earth and Environmental Science 1003, no. 1 (2022): 012019. http://dx.doi.org/10.1088/1755-1315/1003/1/012019.

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Abstract Shale instability due to hydration and swelling is an unavoidable problem during hydraulic fracturing or drilling with water-based fluids. In this study, 1-butyl-3-methylimidazolium chloride (BMIMCl) an ionic liquid was utilized as a clay swelling inhibitor. The performance of BMIMCl was evaluated by the bentonite plate soaking test and linear swelling test. FT-IR and zeta potential test was done to explain the swelling inhibition mechanisms. Moreover, XRD test was conducted for the characterization of bentonite (swelling clay). 2 wt.% BMIMCl reduced the swelling rate of bentonite by

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Liu, Xintao, Yifang Ban, and Songnian Li. "An Across-Country Comparison of the Hierarchical Spatial Structures of Cities." GEOMATICA 68, no. 3 (2014): 207–17. http://dx.doi.org/10.5623/cig2014-305.

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This paper investigates the hierarchical structures of 29 selected European countries from the perspective of blocks and natural cities and makes an across-country comparison among the countries. Blocks are minimum cycles consisting of road segments in the road network of a whole country; natural cities are defined as the aggregations of small blocks. We test the size distributions of blocks and natural cities at the country level and find that both exhibit heavy-tailed distributions. The power law distribution of city sizes indicates the presence of the scaling property. Therefore, the cities

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McLennan, Hanna J., Stefan Lüpold, Pete Smissen, Kevin C. Rowe, and William G. Breed. "Greater sperm complexity in the Australasian old endemic rodents (Tribe: Hydromyini) is associated with increased levels of inter-male sperm competition." Reproduction, Fertility and Development 29, no. 5 (2017): 921. http://dx.doi.org/10.1071/rd15425.

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Spermatozoa exhibit considerable interspecies morphological variation across mammals, especially among murid rodents. In Australasia, most murids in the tribe Hydromyini have a spermatozoon with a highly complex head exhibiting an apical hook, characteristic of most murids, and two projections that extend from its upper concave surface, the ventral processes. In the present study we performed a phylogenetically controlled comparison of sperm morphology across 45 species of hydromyine rodents to test the hypothesis that the length and angle of both the apical hook and ventral processes, as well

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Zhao, C., H. He, C. Lin, Y. Chen, and A. Lavasan. "Experimental investigation of tail void grouting pressure evolution for super-large diameter shield tunnels." IOP Conference Series: Earth and Environmental Science 1333, no. 1 (2024): 012027. http://dx.doi.org/10.1088/1755-1315/1333/1/012027.

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Abstract The shield tunneling method is widely used in underground construction. Factors such as the variations in grouting pressure and stiffness/strength evolution over space and time directly affect ground deformation and system stability. To investigate the effect of grouting pressure variation, grouting influence zone, and hydromechanical properties on the model responses (e.g., surface settlement and lining forces), an innovative model test setup was developed to simulate the tunneling process wherein the lining could settle or float during grout injection. This setup included tunnel shr

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Li, Jianping, Chen Li, Congcong Li, et al. "Design and Study of a Spindle-Shaped Fry Head-to-Tail Orientation Device." Fishes 8, no. 3 (2023): 143. http://dx.doi.org/10.3390/fishes8030143.

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The head-to-tail orientation of spindle-shaped fry is an important part of automated vaccine injection. The fry’s automatic orientation helps reduce labor and improve efficiency during the automated injection. This paper designed an electromagnetic vibration fry orientation device for grass carp fry, measured its friction characteristics with three different materials in scales and against scales, analyzed the kinematic characteristics of the fry on the electromagnetic vibration feeder, and clarified the main factors affecting fry transport. It used the trough’s inclination angle, amplitude, a

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Pytlewski, Jarosław, Ireneusz Ryszard Antkowiak, and Daniel Stanisławski. "Associations between udder and skin cleanliness and somatic cell counts, yield and composition of milk of Polish Holstein-Friesian Black-and-White cows in the autumn-winter season." ANIMAL SCIENCE AND GENETICS 18, no. 2 (2022): 23–40. http://dx.doi.org/10.5604/01.3001.0015.8825.

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The aim of this study was to determine the associations between the cleanliness of the udder and skin of the hind part of body and somatic cell counts in milk as well as milk yield and its composition in Polish Holstein-Friesian Black-and-White cows in the autumn-winter season. Animals were kept in the freestall cubicle barn with access to a hardened surface outdoor run. In the roofed part the run was regularly bedded with barley straw. In the milking parlour during test milkings each animal was subjected to a visual inspection performed to evaluate the cleanliness status of the udder, the und

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Huang, Zhengfei, Zhifeng Wang, Chuanhua Li, Kaifeng Yin, Dan Hao, and Jing Lan. "Application of Plasma-Sprayed Zirconia Coating in Dental Implants: Study in Implants." Journal of Oral Implantology 44, no. 2 (2018): 102–9. http://dx.doi.org/10.1563/aaid-joi-d-17-00020.

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The aim was to investigate the osseointegration of a novel coating—plasma-sprayed nanostructured zirconia (NSZ)—for dental implants. Nanostructured zirconia coating on non-thread titanium implant was prepared by plasma spraying, and the implant surface morphology, surface roughness, and wettability were measured. In vivo, nanostructured zirconia-coated implants were inserted in rabbit tibia, and the animals were sacrificed at 2, 4, 8, and 12 weeks after implantation. The bond strength between implant and bone was measured with the removal torque (RTQ) test. Osseointegration was observed by sca

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Rezvani, A., M. Mayer, I. Qin, J. Brunner, and Bob Chylak. "Stitch Bond Process of Pd-Coated Cu Wire: Experimental and Numerical Studies of Process Parameters and Materials." International Symposium on Microelectronics 2013, no. 1 (2013): 000312–17. http://dx.doi.org/10.4071/isom-2013-tp42.

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Cost reduction is the main driver in the recent transition to Cu wire bonding from predominate Au wire bonding. Other cost reduction in packaging comes from new developments in substrates and lead frames, for example, Pre-Plated Frames (PPF) and uPPF for QFP and QFN reduce the plating and material cost. However, 2nd bonds (stitch bonds) can be more challenging on some of the new leadframe types due to the rough surface finish and thin plating thickness. Pd-coated Cu (PCC) wire has been recently introduced to improve the wire bonding process with bare Cu wire, mainly to improve reliability and

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Muangphra, Ptumporn, and Ravi Gooneratne. "Comparative Genotoxicity of Cadmium and Lead in Earthworm Coelomocytes." Applied and Environmental Soil Science 2011 (2011): 1–7. http://dx.doi.org/10.1155/2011/218929.

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To determine genotoxicity to coelomocytes,Pheretima peguanaearthworms were exposed in filter paper studies to cadmium (Cd) and lead (Pb) for 48 h, at concentrations less than the LC10—Cd: 0.09, 0.19, 0.38, 0.75, and 1.50 μg cm−2; Pb: 1.65, 3.29, 6.58, 13.16, and 26.32 μg cm−2. For Cd at 0.75 μg cm−2, in the micronucleus test (detects chromosomal aberrations), significant increases () in micronuclei and binucleate cells were observed, and in the comet assay (detects DNA single-strand breaks), tail DNA% was significantly increased. Lead was less toxic with minimal effects on DNA, but the binucle

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Wang, Lun, Xincong Zhou, Qipeng Huang, Xueshen Liu, Zhenjiang Zhou, and Shaopeng Xing. "Investigation into the Synergistic Effects of Sediment Concentration and Particle Size on the Friction and Wear Properties of Nitrile Butadiene Rubber." Journal of Marine Science and Engineering 13, no. 1 (2024): 33. https://doi.org/10.3390/jmse13010033.

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Nitrile Butadiene Rubber (NBR) is commonly used in ships’ water-lubricated tail bearings. However, sediment in the water significantly affects these bearings’ friction and wear performance. This study investigates NBR test blocks’ friction and wear behavior in conjunction with ZCuSn10Zn2 copper ring friction pairs within a sediment-laden water lubrication environment. Two primary factors were considered: sediment particle concentration and sediment particle size. Friction and wear tests were conducted under pure water and sediment-laden conditions using the ZY-1 ring block friction and wear te

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Luo, Weidong, Shu Gan, Xiping Yuan, Sha Gao, Rui Bi, and Lin Hu. "Test and Analysis of Vegetation Coverage in Open-Pit Phosphate Mining Area around Dianchi Lake Using UAV–VDVI." Sensors 22, no. 17 (2022): 6388. http://dx.doi.org/10.3390/s22176388.

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This work aimed to detect the vegetation coverage and evaluate the benefits of afforestation and ecological protection. Unmanned aerial vehicle (UAV) aerial survey was adopted to obtain the images of tailings area at Ma’anshan near the Dianchi Lake estuary, so as to construct a high-resolution Digital Orthophoto Map (DOM) and high-density Dense Image Matching (DIM) point cloud. Firstly, the optimal scale was selected for segmentation by considering the terrain. Secondly, the visible-band difference vegetation index (VDVI) of the classified vegetation information of the tail mining area was det

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Wu, Zeng, Xiao Jun Ning, and Ping Rui Zhao. "Analysis of Fretting Wear of Type II Fastener Elastic Bar." Applied Mechanics and Materials 178-181 (May 2012): 1469–73. http://dx.doi.org/10.4028/www.scientific.net/amm.178-181.1469.

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The main function of fastener was achieved by elastic bar. The traditional method for the study of fatigue stress, strain analysis, which was not reflected the true situation, because the elastic bar in the work with other members of the contact surface between the mutual movement of tiny was created, i.e. fretting. The shear stress（）, relative displacement（） and two of the product（） of elastic bar was calculated out by applying Coulomb friction model of nonlinear contact theory of simulation of elastic bar and the surrounding contact element. Theoretical analysis was shown that, if the fre

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Paschmann, G., S. Haaland, B. U. Ö. Sonnerup, et al. "Characteristics of the near-tail dawn magnetopause and boundary layer." Annales Geophysicae 23, no. 4 (2005): 1481–97. http://dx.doi.org/10.5194/angeo-23-1481-2005.

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Abstract. The paper discusses properties of the near-tail dawnside and boundary layer, as obtained from Cluster plasma and magnetic field measurements during a single skimming orbit on 4 and 5 July 2001 that included 24 well-defined crossings by all four spacecraft. As a result of variations of the interplanetary magnetic field, the magnetic shear across the local varied between ~0° and ~180°. Using an improved method, which takes into account acceleration and thickness variation, we have determined the orientation, speed, thickness and current for the 96 individual crossings. The orientations

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Wang, Tong, Nathalie Courtois-Coutry, Gerhard Giebisch, and Michael J. Caplan. "A tyrosine-based signal regulates H-K-ATPase-mediated potassium reabsorption in the kidney." American Journal of Physiology-Renal Physiology 275, no. 5 (1998): F818—F826. http://dx.doi.org/10.1152/ajprenal.1998.275.5.f818.

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Isoforms of the H-K-ATPase participate in active K resorption in the renal collecting tubule. The cytoplasmic tail of the β-subunit of the gastric H-K-ATPase includes a 4 amino acid motif which is highly homologous to tyrosine-based endocytosis signals. We have generated transgenic mice expressing an H-K-ATPase β-subunit in which the tyrosine residue in this sequence has been mutated to alanine. Mice expressing the mutated protein manifest constitutive hypersecretion of gastric acid, demonstrating that the β-subunit tyrosine-based motif is required for the regulated endocytosis of the H-K pump

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Geng, Huimin, Jae-Woong Lee, Zhengshan Chen, et al. "IL2RA (CD25) Recruits Inhibitory Phosphatases to the Cell Membrane and Mediates Negative Feedback Control of STAT5 Signaling in Acute Lymphoblastic Leukemia." Blood 124, no. 21 (2014): 788. http://dx.doi.org/10.1182/blood.v124.21.788.788.

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Abstract Background and hypothesis: CD25 (IL2RA, interleukin 2 receptor α chain) is a transmembrane protein with a 13aa cytoplasmic tail. CD25 cooperates with β- and γ-chains in binding IL-2, but does not contribute to cytokine signaling. During normal B cell development, CD25 is specifically upregulated on the surface of IL7-dependent pre-B cells and is also expressed on the surface of a subset of human pre-B ALL cases. CD25-expressing ALL is typically associated with poor clinical outcome. For these reasons, we studied the functional significance of CD25 expression on human pre-B ALL cells.

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Yang, Peixi, Weixun Yong, Chuanqi Li, et al. "Hybrid Random Forest-Based Models for Earth Pressure Balance Tunneling-Induced Ground Settlement Prediction." Applied Sciences 13, no. 4 (2023): 2574. http://dx.doi.org/10.3390/app13042574.

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Construction-induced ground settlement is a serious hazard in underground tunnel construction. Accurate ground settlement prediction has great significance in ensuring the surface building’s stability and human safety. To that end, 148 sets of data were collected from the Singapore Circle Line rail traffic project containing seven defining parameters to create a database for predicting ground settlement. These parameters are the tunnel depth (H), the tunnel advance rate (AR), the EPB earth pressure (EP), the mean SPTN value from the soil crown to the surface (Sm), the mean water content of the

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Bell, Michael M., Wen-Chau Lee, Cory A. Wolff, and Huaqing Cai. "A Solo-Based Automated Quality Control Algorithm for Airborne Tail Doppler Radar Data." Journal of Applied Meteorology and Climatology 52, no. 11 (2013): 2509–28. http://dx.doi.org/10.1175/jamc-d-12-0283.1.

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AbstractAn automated quality control preprocessing algorithm for removing nonweather radar echoes in airborne Doppler radar data has been developed. This algorithm can significantly reduce the time and experience level required for interactive radar data editing prior to dual-Doppler wind synthesis or data assimilation. The algorithm uses the editing functions in the Solo software package developed by the National Center for Atmospheric Research to remove noise, Earth-surface, sidelobe, second-trip, and other artifacts. The characteristics of these nonweather radar returns, the algorithm to id

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