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Journal articles on the topic '1store'

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Published: 4 June 2025
Last updated: 1 August 2025

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1

Wang, Ju, Hui Xin Dai, and Yan Hua Guo. "Experimental Study on Flotation of a Yunnan Sulfide a Low Grade Copper Ore." Advanced Materials Research 734-737 (August 2013): 935–40. http://dx.doi.org/10.4028/www.scientific.net/amr.734-737.935.

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Based on a single Yunnan copper sulfide, we conducted a series of flotation test research. The results indicate that the raw ore grade is 0.78%,by closed circuit process of 1stage of roughing, 1stage of scavenging and 2 stages of cleaning flotation, 14.85% concentrate grade with 92.49% recovery can be obtained, and the index is ideal.
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2

Gao, Hong, Christian Jungen та Chris H. Greene. "Predissociation ofH2in the 3pπDΠu+1state". Physical Review A 47, № 6 (1993): 4877–84. http://dx.doi.org/10.1103/physreva.47.4877.

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3

Neyer, B. T., D. L. Clark, J. S. Dunham, et al. "Lifetime of the lowest0+,T=1state ofNa22." Physical Review C 35, no. 3 (1987): 890–93. http://dx.doi.org/10.1103/physrevc.35.890.

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4

Kam, A. W., та F. M. Pipkin. "Measurement of the lifetime of the metastablea’’Σg+1state ofN2". Physical Review A 43, № 7 (1991): 3279–84. http://dx.doi.org/10.1103/physreva.43.3279.

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5

Shankar, Abhishek, Shubham Roy, Goura Kishor Rath, et al. "Aromatase Inhibition and Capecitabine Combination as 1stor 2ndLine Treatment for Metastatic Breast Cancer - a Retrospective Analysis." Asian Pacific Journal of Cancer Prevention 16, no. 15 (2015): 6359–64. http://dx.doi.org/10.7314/apjcp.2015.16.15.6359.

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6

Ferraioli, M., P. Conigliaro, C. Bonini, et al. "AB0669 CUTANEOUS LUPUS ERYTHEMATOSUS OVER THE COVID MAJOR PANDEMIC PERIOD, INCIDENCE AND CLINICAL CHARACTERISTICS." Annals of the Rheumatic Diseases 82, Suppl 1 (2023): 1537.1–1537. http://dx.doi.org/10.1136/annrheumdis-2023-eular.3609.

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BackgroundCutaneous Lupus Erythematosus (CLE) is a chronic inflammatory autoimmune disease with a broad spectrum of clinical manifestations and a variable course, often induced by exogenous factors. CLE is classified in specific and non-specific manifestations with the former divided in acute cutaneous LE (ACLE), subacute cutaneous LE (SCLE), chronic cutaneous LE (CCLE) and intermittent cutaneous LE (ICLE).ObjectivesTo assess clinical features of CLE patients over the major pandemic period and its impact on disease characteristics.MethodsMulti-center retrospective study conducted on consecutiv
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Wang, Xiu-shan, Tao-tao Fan, and Lum Kitmeng. "Finite Element Analysis on the Creep Constitutive Equation of High Modulus Asphalt Concrete." Advances in Materials Science and Engineering 2015 (2015): 1–4. http://dx.doi.org/10.1155/2015/860454.

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In order to obtain the viscoelastic constitutive relation of High Modulus Asphalt Concrete (HMAC), the constitutive relationship is used to carry on the various numerical calculation, utilize integral transforming in its Bailey-Norton creep rule, and establish new practical model. Combining with the collection data from creep tests of uniaxial compression, regression calculation is carried out with 1STOPT fitting software; thus the creep parameters of High Modulus Asphalt Concrete in different temperatures were obtained, which can be used in HMAC creep model.
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Liu, Xiao Dong, Lei Dong, Dong Dong Meng, and Sen Wang. "Multiformality of 1st, 2nd and 3rd-order Subschemes of Four-Level Optical Quantum Coherence Systems." Advanced Materials Research 760-762 (September 2013): 290–93. http://dx.doi.org/10.4028/www.scientific.net/amr.760-762.290.

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Many quantum optical and optoelectronic achievements have been obtained by using quantum coherence effects occurred in four-level quantum systems. Here we report a systemic study on the 1st, 2ndand 3rdorder subschemes of the four-level scheme with the aid of Boolean algebra, and find 7 1storder subschemes and 53 2ndorder subschemes in total. Further it is found that 472 3rd-order subschemes may appear in the realistic optical quantum coherence experiments when the applied lasers are distinguished only by the strong and weak field intensities.
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Vidal, Lucía, Jacobo Álvarez, Uxía Yáñez, et al. "Evaluation of Anogenital Distance and Anti-Müllerian Hormone Plasmatic Concentration as Potential Phenotypes to Predict Reproductive Performance in Holstein Heifers." Veterinary Sciences 11, no. 10 (2024): 495. http://dx.doi.org/10.3390/vetsci11100495.

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Anogenital distance (AGD) is a marker of the degree of prenatal exposure to androgens in multiple species, and it has been suggested that there is an inverse association between AGD and fertility. Therefore, the aim of this study was to determine the usefulness of AGD and anti-Müllerian hormone (AMH) concentrations, an indirect marker of the follicular population, as predictors of future reproductive potential in Holstein cattle. The AGD was measured in 566 females from 9 dairy farms in Galicia (Spain). A group of 172 females underwent a second measurement 9 months after. Additionally, data on
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10

Yong, Li, Kou Yuhang, Xia Tengteng, Chu Heying, and Li Lei. "Study on Viscoelastic Poisson's Ratio of Nonwovens." Fibres & Textiles in Eastern Europe 32, no. 2 (2024): 51–56. http://dx.doi.org/10.2478/ftee-2024-0018.

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Abstract Combined with Laplace transform and creep stress conditions, an accurate expression of the viscoelastic Poisson's ratio calculated from the transverse strain and relax modulus is derived. From creep and relax tests data, Prony series of the transverse strain and relax modulus of nonwovens with time were obtained, and the time-varying curve of the viscoelastic Poisson's ratio of nonwovens was simulated by 1stOpt software. The method proposed can effectively obtain the viscoelastic Poisson's ratio of nonwovens and provide a reference value for calculating mechanical indexes involved in
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11

Eve, Martin Paul. "“Too many goddamn echoes”: Historicizing the Iraq War in Don DeLillo's Point Omega." Journal of American Studies 49, no. 3 (2014): 575–92. http://dx.doi.org/10.1017/s0021875814001303.

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This piece provides a detailed engagement with Don DeLillo's depiction of the 2003 Iraq War in his latest novel, Point Omega. Framed through both formal aesthetic signposting of the interrelations between modernist and postmodernist practice and also through explicit thematic comparison between the conflicts, I trace DeLillo's treatment of Iraq in Point Omega back to his earlier writing on the Cold War in Underworld and focus upon the ways in which this comparative historical metaphor can be read with particular emphasis upon its implications for the nation-1state.
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12

Xu, G. T., Xiao Wang та W. E. Cooke. "Measurement of the 6p1/2εlbranching ratios of the (6pns)J=1state of barium". Physical Review A 48, № 1 (1993): 838–40. http://dx.doi.org/10.1103/physreva.48.838.

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13

Lu, Xiao Yang, Xiao Li Lu, Li Li Huang, Jin Ming Liu, Ying Yue Liu, and Yi Min Xu. "Effects of Geometric Parameters on the Inner Surface Pressure of Elbow Pipe and the Establishment of Pressure Model." Applied Mechanics and Materials 252 (December 2012): 111–15. http://dx.doi.org/10.4028/www.scientific.net/amm.252.111.

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Elbows of oil pipeline were adopted to study the effect of the variation of the geometric parameters of the inner diameter d, bending degree k =R/d and bending angle A on the distribution regularity of the inner surface pressure, with the simulation by the FLUENT software. Based on the analysis, the pressure computational formula on the dangerous cross section α=45° was built by using 1stOpt software. The values computed by the formula agree well with the ones simulated by FLUENT, which lays the groundwork for strength check and structural design of the elbow pipe.
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14

Zhang, Wen Fu, Hai Yan Sui, Zong Wang, and Jing Ji. "Buckling Analysis of Two-Span Continuous Beams with Lateral Elastic Brace under Uniform Load." Advanced Materials Research 163-167 (December 2010): 641–45. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.641.

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Both total potential energy and buckling equation of two-span continuous beam with lateral elastic brace under uniform load are deduced, based on energy variation method and the principle of minimum potential energy. Buckling of H-beams is simulated by ANSYS software, then compared to theoretical value, validated its rationality. High precision buckling moment formula is regressed using 1stOpt which is a famous mathematical optimization analysis software in China. The relationship between lateral brace stiffness and buckling moment is obtained. Results: with lateral brace stiffness increases,
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15

Weng, Y. H., J. Kershaw, K. Tosh, G. Adams, and M. S. Fullarton. "Height–Diameter Relationships for Jack Pine Seedlots of Different Genetic Improvement Levels." Silvae Genetica 57, no. 1-6 (2008): 276–82. http://dx.doi.org/10.1515/sg-2008-0042.

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AbstractDifferences in height-diameter (H-DBH) relationship were investigated using the Chapman-Richards function among jack pine seedlots planted in a realized genetic gain test in New Brunswick. Three seedlots representing the bulk mixed cone collection from the 1979 J.D. Irving’s first-generation seedling seed orchard (JDISSO) before rogueing (UNR), after the first time genetic rogueing (1STR) and after the second time genetic rogueing (2NDR), respectively, were planted in the test. Unimproved commercial seedlots (UC) were also included for comparison. Results indicate that an overall H-DBH
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16

Cornaggia, C., D. Normand, J. Morellec, G. Mainfray та C. Manus. "Resonant multiphoton ionization ofH2via theE,FΣg+1state: Absorption of photons in the ionization continuum". Physical Review A 34, № 1 (1986): 207–15. http://dx.doi.org/10.1103/physreva.34.207.

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17

Zeng, Zhi, Ning Tao, Li Chun Feng, Ye Shu Li, and Cun Lin Zhang. "Relative Thermal Contrast Analysis in the Inspection of Wind Turbine Blades Using Pulsed Thermography." Advanced Materials Research 301-303 (July 2011): 591–96. http://dx.doi.org/10.4028/www.scientific.net/amr.301-303.591.

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The rotor blade is an important component in wind turbine generator, it consists of glass fiber reinforced plastics (GFRP) and sandwich areas containing wood or plastic foam, different defects may be generated because of manufacturing problem. To improve the safety of wind turbine blades, pulsed thermography is being investigated in this study. Surface defects, such as air bubbles, edge bonding, etc. were easily and clearly detected on several full scale blades. Several specimens were manufactured to simulate the adhesive conditions between supporting spar and GFRP shells. The direct analysis
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18

Kravchenko, N. O. "Growth dynamics, antagonistic activity and acid production of Lactiplantibacillus (=Lactobacillus) plantarum KT-L18/1 and Bacillus subtilis BPT-B1 inoculants in alfalfa silage." Agricultural Science and Practice 11, no. 2 (2024): 57–68. http://dx.doi.org/10.15407/agrisp11.02.057.

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Aim. To study growth dynamics, antagonistic activity and acid formation of two inoculant strains, Lactiplantibacillus (=Lactobacillus) plantarum КТ-L18/1 and Ваcillus subtilis ВРТ-В1, that were introduced into alfalfa silage, up to 30 days of fermentation. Methods. A streptomycin-resistant strain of both above-mentioned organisms, obtained in earlier research, was used to achieve the research aims. Alfalfa was artificially wilted and dried to a dry matter content of 39–40 %. Fermentation was conducted under anaerobic conditions in polyethylene bags. Inoculant was added at a concentration of 10
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19

Voßwinkel, Daniel, Rolf-Dieter Hoffmann, Volodymyr Svitlyk, et al. "Two superstructures of Ce3Rh4Ge4." Zeitschrift für Kristallographie - Crystalline Materials 233, no. 2 (2018): 81–95. http://dx.doi.org/10.1515/zkri-2017-2092.

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AbstractTwo different samples of Ce3Rh4Ge4were synthesized from different starting compositions by melting of the elements in an arc-melting furnace followed by annealing sequences in a sealed tantalum ampoule in a muffle furnace. The structures of two different stacking variants were refined on the basis of temperature dependent single-crystal X-ray diffractometer data. At high temperature Ce3Rh4Ge4adopts the U3Ni4Si4type structure with strongly enhanced anisotropic displacement parameters for the Rh1 atoms. For the two different crystals, additional reflections start to appear at different t
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20

de Campos, Marcos Flavio, Fernanda A. S. da Silva, and José Adilson de Castro. "Squareness of NdFeB Stoner-Wohlfarth Hysteresis." Materials Science Forum 802 (December 2014): 601–6. http://dx.doi.org/10.4028/www.scientific.net/msf.802.601.

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Hysteresis curves were calculated according the Stoner-Wohlfarth (SW) model using values of K2/K1from zero up to 0.25 (where K2is the 2ndorder anisotropy constant and where K1is the 1storder anisotropy constant). The SW calculations assume Nd2Fe14B nanocrystalline magnets with single domain particle size (grain diameter less than 150 nm). The effect of K2on several index of merit of magnets as BHmaxand squareness are discussed. As a general result, increasing K2, the intrinsic coercivity increases. However, the increase of K2almost does not improve the BHmaxof isotropic magnets. It is found th
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21

Lu, Xiao Yang, Yong Zhou, Shi Ying Chen, Xin Guang Li, and Hong Liang Zhu. "The Establishment of Ninety Degree Gas Elbow Pipes Internal Pressure Distribution Model." Applied Mechanics and Materials 670-671 (October 2014): 696–99. http://dx.doi.org/10.4028/www.scientific.net/amm.670-671.696.

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According to the principle of harmonious dimensions, the qualitative distribution model of the internal pressure on elbow pipes were determined; Through FLUENT numerical simulation, the internal pressure were given under 96 kinds of gas fluid conditions; By analyzing the variation of the internal pressure with flow and geometrical parameters, the variation of the internal pressure distribution within the elbow pipes has been studied; By means of 1stOpt nonlinear fitting package, the formula of three-dimensional internal pressure distribution was determined; Compared with the numerical results,
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22

Liu, Weiping, Chun Zhao, Yu Zhou, and Xianzhen Xu. "Modeling of Vapor-Liquid Equilibrium for Electrolyte Solutions Based on COSMO-RS Interaction." Journal of Chemistry 2022 (September 29, 2022): 1–13. http://dx.doi.org/10.1155/2022/9070055.

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The modeling of phase equilibrium for electrolyte solutions plays an important role in chemical thermodynamics. Modeling and calculation of the vapor-liquid equilibrium (VLE) for an electrolyte solution are studied in this paper. The influence mechanism for the microscopic interaction on the macroscopic VLE is further studied by COSMOtherm. Then, a developed model is proposed. The interaction parameters in the model are linked to the COSMO interaction energy (H_int). The interaction equations are remodeled using 1stopt software, and components are used to replace the “interaction parameters” u
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23

Wood, Robert P., Chris H. Greene, and Darrell Armstrong. "Photoionization of the barium 6s6p1P°1state: Comparison of theory and experiment including hyperfine-depolarization effects." Physical Review A 47, no. 1 (1993): 229–35. http://dx.doi.org/10.1103/physreva.47.229.

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24

Gibson, Thomas L., Marco A. P. Lima, Vincent McKoy та Winifred M. Huo. "Application of the Schwinger multichannel formulation to electron-impact excitation of the BΣu+1state ofH2". Physical Review A 35, № 6 (1987): 2473–78. http://dx.doi.org/10.1103/physreva.35.2473.

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25

Zhang, Xiaolong, Shiming Wang, and Yibin Li. "Research on calibration of accelerometer combined Norm-observation method based on global optimization." Journal of Physics: Conference Series 2228, no. 1 (2022): 012051. http://dx.doi.org/10.1088/1742-6596/2228/1/012051.

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Abstract This paper provides a method for the overall calibration of the accelerometer combined error model coefficients. The calibration of the accelerometer error coefficients is achieved by using the Norm-observation method. It is important to achieve the calibration of the quadratic coefficient of the accelerometer. First, the Tylor series is used to expand the solution of the acceleration model, the nonlinear equations to be solved are obtained by using the least square method and Norm-observation method. Finally using 1stOpt platform of global optimization algorithm for the solution of e
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Britwum, Akyana, Tomasz Kolodziej, Waldemar Tokarz, et al. "Magnetostriction of First and Second Order Magnetite Samples and its Relation to the Magnetic Easy Axis Switching." Solid State Phenomena 194 (November 2012): 120–23. http://dx.doi.org/10.4028/www.scientific.net/ssp.194.120.

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Magnetic field (up to 8T) and temperature (10-300K) dependence of size of Zn doped magnetite samples Fe3-xZnxO4(x=0.008, 0.022, i.e. falling within first and second order Verwey transition regime) were measured by the strain gauge method. Both samples experienced shrinking on cooling through the Verwey transition along monoclinic c axis, while the strong expansion was found for the 1storder sample in the a-b direction, unlike in the 2ndorder sample. Magnetostriction of both samples is very small and limited to low fields only, concomitant with magnetization process. However, field application
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Lloyd, Michael. "THE HORTATIVE AORIST." Classical Quarterly 68, no. 2 (2018): 415–24. http://dx.doi.org/10.1017/s0009838819000132.

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The final section on the aorist indicative in Goodwin'sMoods and Tensesidentifies the following usage: ‘In questions with τί οὐ [‘why not’], expressing surprise that something is not already done, and implying an exhortation to do it’. Other scholars identify urgency or impatience in these questions. Albert Rijksbaron writes: ‘Questions with the 1stor 2ndperson of the aorist indicative, introduced by τί οὖν οὐ or τί οὐ, often serve, especially in Plato and Xenophon, asurgent requests[original emphasis] … The aorist indicative is more emphatic than the present: the speaker observes that a state
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Han, Zhi Yong, Xiao Bin Wei, and Wang Bing Du. "Iron Filings as PRB Media Regression Analysis of Remediation of Chromium-Contaminated Groundwater." Advanced Materials Research 864-867 (December 2013): 1178–82. http://dx.doi.org/10.4028/www.scientific.net/amr.864-867.1178.

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Regarding the iron filing as PRB padding media, this experiment researched the repair effect of iron filing to the groundwater polluted by Cr on condition that different initial concentration of Cr6+ and different flow velocity, and then with the help of the data regression analysis software SPSS、1stOpt、Excel etc, it studied the regression analysis of Cr6+ removal rate with the change of initial concentration and the flow velocity. The results indicated that: under the certain flow velocity, cubic polynomial is the best regression model of Cr6+ removal rate with the change of initial concentra
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Lu, Xiao Yang, Hong Liang Zhu, Xiao Li Lu, Jin Ming Liu, Yong Zhou, and Xin Guang Li. "A Study on the Inner Surface Pressure Distribution of Fluid in Ninety Degree Elbow Pipe." Applied Mechanics and Materials 713-715 (January 2015): 34–38. http://dx.doi.org/10.4028/www.scientific.net/amm.713-715.34.

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On the premise of the simulation data for the inner fuild passing the elbow pipe by means of software named FLUENT and dimensional analysis, the formula modle of inner surface pressure for elbow pipes came up by analyzing the relationships among the inner surface pressure P ,the fluid outlet pressure P0 ,axial angle α, circular angle β and the degree of curvature k; Depending on the inner surface pressure data simulated under 150 kinds of conditions, the pressure formula was fitted by means of 1stOpt software; The verification results show that the calculated value by the formula matched with
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Liang, Jing Long, Yun Li Feng, Jin Zhi Yin, Da Qiang Cang, and Hui Li. "The Mathematic Model of Deformation Resistance of S50C Medium Carbon Steel in Hot Rolling Process." Advanced Materials Research 652-654 (January 2013): 2043–47. http://dx.doi.org/10.4028/www.scientific.net/amr.652-654.2043.

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A test study of deformation resistance of S50C medium carbon steel in hot rolling process was conducted by using Gleeble 3500 Thermal-mechanical testing machine. The relationship of deformation resistance with different deformation temperature and deformation rate and deformation degree was analyzed through the stress-strain curve of S50C medium carbon steel which measured in the test. The results show that the deformation resistance increase with decrease of deformation temperature and increase of deformation rate and deformation degree. The math model of plastic deformation for metal of test
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Lv, Hanming, Xiaoye Wang, Chongqi Ma, and Li Ma. "Estimating the Dielectric Constant of Cellulose Acetate Fiber Aggregation with Its Components Volume Fraction." Journal of Engineered Fibers and Fabrics 12, no. 3 (2017): 155892501701200. http://dx.doi.org/10.1177/155892501701200309.

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For the sake of studying the relationship between dielectric constant (ε) of cellulose acetate fiber aggregation and volume fraction of its compositions (including cellulose acetate fibers, water and oiling agent), the dielectric spectrum of the aggregation was measured in two forms with a Broadband Dielectric Spectrum (BDS) test system- dry cellulose acetate fibers (dry samples) and oiled cellulose acetate fibers (oiled samples). The measurement data show that dielectric constant has a linear correlation with the volume fraction of cellulose acetate fibers and the oiling agent in the aggregat
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Lin, Wei Ting, Yuan Chieh Wu, Tung Liang Chu, and An Cheng. "Effect on Vibroengineering of Material Deterioration in a Scale-Down Reinforced Concrete Containment Vessel Specimen." Applied Mechanics and Materials 479-480 (December 2013): 13–19. http://dx.doi.org/10.4028/www.scientific.net/amm.479-480.13.

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This study is aim to evaluate the natural frequency variation of the scale-down reinforced concrete containment vessel specimen under accelerated corrosion conditions. A plastic ring was sealed around the perimeter of the cylindrical vessel bottom with the 3.5 % NaCl solution to achieve the accelerated corrosion test. Concrete resistivity, open circuit potential, corrosion rate and natural frequencies were tested and discussed in this study. Test results presented that the accelerated corrosion method with a direct 60 voltage applied was a suitable method for estimating and accelerating the co
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Roka, Kleoniki, Eleftheria Kokkinou, Maria Gavra, et al. "NFB-17. "Optic Pathway findings in children with Neurofibromatosis type-1 (NF-1)." Neuro-Oncology 24, Supplement_1 (2022): i131. http://dx.doi.org/10.1093/neuonc/noac079.478.

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Abstract BACKGROUND/OBJECTIVES:Optic-pathway-glioma(OPG) represents the most common central-nervous tumor in children with neurofibromatosis type-1(NF1), occurring at an incidence of 15-20%. It is estimated that 1/3 of NF1 patients(pts) with OPG will need treatment. DESIGN-METHODS:We performed a retrospective-review of all NF1-pts examined in the First Hellenic Multidisciplinary-Clinic – Center of Expertise for Neurocutaneous-disorders. Gender, age, MRI-radiological and ophthalmological findings, presence of OPG, management and outcome were analyzed. RESULTS:Since the establishment of the Clin
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Alexandru, Carmen. "Analysis of the Dynamic Behavior of the Antiseismic Elastomeric Isolators Based on the Evaluation of the Internal Dissipated Energy." Applied Mechanics and Materials 430 (September 2013): 317–22. http://dx.doi.org/10.4028/www.scientific.net/amm.430.317.

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The method of testing the elastomeric isolators at shearing, in a system formed of two elements in parallel, is presented. The exterior actions can be represented by harmonic functions defined as:kinematic excitation through the instantaneous displacement of the form (t)=Asinωt;dynamic excitation through the instantaneous force of the form F(t)=F0sintωt or P(t)=m0rω2sintωt.The linear viscoelastic behavior of the elastomer enables the obtainment of hysteresis curves of elliptical shape for each harmonic loading.In the end, the dynamic stiffness as well as the equivalent damping can be evaluated
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Lu, Xiao Yang, Xin Guang Li, Jin Ming Liu, Xiao Li Lu, Hong Liang Zhu, and Yong Zhou. "Numerical Simulation of Flow Fluid in Elbow Pipe Based on FLUENT and the Establishment of the Pressure Model." Applied Mechanics and Materials 713-715 (January 2015): 39–42. http://dx.doi.org/10.4028/www.scientific.net/amm.713-715.39.

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According to the FLUENT simulation results of the 90°elbow pipe fluid flow condition, the influence of the pressure distribution about the variation of the flow parameters (v、P0 、ρ) and the geometric parameters (R、d、k=R/d、α、β) is analyzed. By using the dimensionless analysis method, on the basis of the influence of the 32 set of parameter variations on the elbow pipe wall pressure distribution regularity, the pressure qualitative function is established including the geometric parameters and the flow parameters. Through the 155 kinds of the FLUENT simulation results, the fitting software 1stOp
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Lu, Xiao Yang, Lu Lu Wang, Li Li Huang, Shao Bo Lu, and Xiao Xiao Wang. "Formula for Calculating Pressure Distribution of Crude Oil Flowing through 180 Degree Bend." Applied Mechanics and Materials 872 (October 2017): 209–16. http://dx.doi.org/10.4028/www.scientific.net/amm.872.209.

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FLUENT software was used to analyze the distribution of internal pressure P of elbow with the variation of outlet pressure P0, inlet velocity v, fluid density ρ and the degree of curvature k=R/D during the flow of crude oil in 180 degree bend pipe, to establish 135 kinds of working condition of internal pressure P distribution database. According to the distribution law of the pressure of the inner wall of the elbow under different parameters (P0, v, ρ, k), calculation formula of the internal pressure distribution of the pipe is analyzed and fitted by 1stOpt software. Through the numerical sim
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Thinnakorn, Khritsayaporn, and Jirdsak Tscheikuna. "Transesterifcation of Palm Olein Oil Using Na3PO4 as Heterogeneous Catalyst." Advanced Materials Research 724-725 (August 2013): 1181–86. http://dx.doi.org/10.4028/www.scientific.net/amr.724-725.1181.

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Fatty acid methyl ester (FAME) production from transesterification reaction of palm olein oil with methanol in the presence of Na3PO4as heterogeneous catalyst was investigated. The effects of molar ratio of methanol to oil, amount of catalyst and reaction temperature on the yield of FAME were studied. The results showed that sodium phosphate can be used effectively as heterogeneous catalyst in transesterification reaction. The rate of reaction and yield of FAME depend on molar ratio of methanol to oil, amount of catalyst used and operating temperature. Molar ratio of methanol to oil of higher
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Liu, Yingchun, Zhaoming Hang, Wenfu Zhang, Keshan Chen, and Jing Ji. "Analytical Solution for Lateral-Torsional Buckling of Concrete-Filled Tubular Flange Girders with Torsional Bracing." Advances in Civil Engineering 2020 (January 27, 2020): 1–14. http://dx.doi.org/10.1155/2020/4340381.

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Concrete-filled tubular flange girders have been used in bridges, and torsional bracings are widely used in them to increase the lateral-torsional buckling strength. This article proposes an analytical solution for the lateral-torsional buckling (LTB) of concrete-filled tubular flange steel girders with torsional bracing under a concentrated load. The modal trial functions of lateral displacement and the torsional angle are expressed by the first six terms of the trigonometric function. By introducing dimensionless parameters, the variational solution of energy for the buckling equation of the
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MA Zhi-yuan, 马志远, 王鹏飞 WANG Peng-fei, 吴志强 WU Zhi-qiang, 吴德林 WU De-lin, and 粟勇 SU Yong. "A Method for Solving the Refractive Index Temperature Coefficient Empirical Formula Constants of Optical Glasses Based on 1stOpt." ACTA PHOTONICA SINICA 46, no. 6 (2017): 616002. http://dx.doi.org/10.3788/gzxb20174606.0616002.

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Ershov, Alexander, Edward Augustyniak та Jacek Borysow. "Temporal evolution of the vibrational excitation within theΣg+1state ofN2in the positive column of a pulsed electric discharge". Physical Review A 50, № 3 (1994): 2341–46. http://dx.doi.org/10.1103/physreva.50.2341.

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Wang, Xiu Shan, Xiao Jun Ding, and Yong Li Xie. "Permanent Deformation Prediction Model of Graded Gravel under Repeated Load." Advanced Materials Research 168-170 (December 2010): 217–21. http://dx.doi.org/10.4028/www.scientific.net/amr.168-170.217.

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In order to predict the permanent deformation of graded gravel, through to the existing flexible pavement granular base permanent deformation estimate model's contrastive analysis, combined with repeated dynamic triaxial test , selects Wei Mi permanent deformation estimate model as the loose aggregate permanent deformation of the estimate model, using 1stopt statistical analysis software carries on the nonlinear curve fit for the parameter, obtained two kinds of norms of graded broken stone aggregates forecast model of the correlation among the types : permanent deformation of the coefficient
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Li, Changchang. "Study on Second-order RC Model Charge State Estimation Method for Lithium Battery Based on EKF Algorithm." Academic Journal of Science and Technology 12, no. 3 (2024): 1–5. http://dx.doi.org/10.54097/xt521f94.

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In order to improve the estimation accuracy of the state of charge (SOC) of lithium-ion batteries, this paper proposes a SOC estimation method based on the second-order RC equivalent circuit model and the extended Kalman filter (EKF) algorithm. Firstly, the second-order RC equivalent circuit model is selected as the research object in this paper, and the parameters of the second-order RC model are identified by combining the hybrid pulse charging and discharging test and the 1stopt software, and then the extended Kalman filtering algorithm is applied under the MATLAB environment to estimate th
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Abdulabbas Hamza, Alaa, and Mohamed Ali H.Hamed. "Epidemiology of Hospital-Acquired Acute Kidney Injury(HAAKI) in Medical Hospitalized Patients in Al-Diwanyia Teaching Hospital." AL-QADISIYAH MEDICAL JOURNAL 15, no. 1 (2019): 183–93. http://dx.doi.org/10.28922/qmj.2019.15.1.183-193.

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Background: Minimum elevation of serum creatinine,even within normal reference range are associated with worse outcome of the patients.
 Objective: The application of the most recent definition of AKI proposed by the Acute Kidney Injury Network (AKIN),published in March 2012 to promote the earlier detection of HAAKI. 
 Patients&Method: Cross –sectional observational study conducted in the medical ward in Al-Diwanyia Teaching Hospital for a period 9 months from 1st of January to 30 of September 2013 . All adolescents & adults patients who fulfill the criteria of the study incl
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de Souza, Rafael Gonçalves, Guilherme D´Aquino Pinho, F. J. P. Sousa, Márcio Celso Fredel, and Orestes Estevam Alarcon. "Effect of Sense and Spacing in Parallel Scratches during Brittle Machining of Stoneware Tiles." Materials Science Forum 727-728 (August 2012): 640–45. http://dx.doi.org/10.4028/www.scientific.net/msf.727-728.640.

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Assuming that during the machining of stoneware tiles by flat grinding each grain on the abrasive wheel performs a single scratch, it is possible to simulate and analysis the effect generated by those employing esclerometry. This paper studied the effect between parallel scratches during brittle machining of stoneware tiles. Scratching tests were performed employing a CNC esclerometer; a Vickers indenter as abrasive tool; load of 10N by dead weight; three different configurations of sense in the same direction; three different configurations of spacing between the scratches incremented with a
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Wells, S. P., S. W. Wissink, A. D. Bacher та ін. "Simultaneous measurements of (p→, p→′) and (p→, p′γ) observables for the 15.11 MeV,1+,T=1state inC12at 200 MeV". Physical Review C 52, № 5 (1995): 2559–76. http://dx.doi.org/10.1103/physrevc.52.2559.

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Liu, Yingchun, Ziwen He, Wenfu Zhang, et al. "Lateral-Torsional Buckling Analysis for Doubly Symmetric Tubular Flange Composite Beams with Lateral Bracing under Concentrated Load." Symmetry 13, no. 12 (2021): 2328. http://dx.doi.org/10.3390/sym13122328.

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Tubular flange composite beams are increasingly applied in modern bridge structures. In order to investigate the overall stability behavior of doubly symmetric tubular flange composite beams with lateral bracing under concentrated load, the analysis of elastic lateral-torsional buckling is conducted by the energy variation method. The analytical solution of critical moment of doubly symmetric tubular flange composite beams with lateral bracing is obtained. Meanwhile, the simplified calculation formula of critical moment is fitted by 1stOpt software based on 26,000 groups of data, and the accur
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Yan, Jing, Ya Wu Zeng, and Rui Gao. "The Application of Iteration and Functional Analysis in Numerical Calculation of Beams with Large Deformation." Advanced Materials Research 243-249 (May 2011): 6144–49. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.6144.

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For the research of beam’s deformation, material mechanics uses equation of small deflection curve which neglects 1storder derivative of deflection and regards bending moment M is merely a function of abscissa x, and then gets the approximate solution of vertical displacement. However in some case, small deflection curve isn’t efficacious, so two methods come up in this paper to solve the accurate differential equation of beam’s deformation. This paper takes a slightness beam from temperature controlling device as an example and shows detailed process of mathematical modeling and solving. For
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Morozkov, N. A., E. V. Sukhanova, and I. N. Zhdanova. "Nitrogen exchange and growth rate of replacement heifers fed on rye extrudate." Siberian Herald of Agricultural Science 53, no. 10 (2023): 93–102. http://dx.doi.org/10.26898/0370-8799-2023-10-11.

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The purpose of the research was to study the effect of different doses of winter rye grain extrudate on nitrogen metabolism in the body and growth intensity of replacement heifers at the age of 12–15 months of the Holsteinized black-and-white breed in the conditions of the dairy complex. Heifers of the control group received a diet, the concentrate part of which consisted of 50.0% (1.0 kg) of standard mixed fodder КR-3 (GOST 9268–2015), 50.0% (1.0 kg) – of rolled barley. Animals of the 1st3rd experimental groups received the same set of voluminous feeds as in the control group, but the extruda
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DOKTOROVÁ, Dominika, and Ivana MIRDALÍKOVÁ. "QuantitativeQualitative Analysis the Theory of Mind in Patients with Psychotic Disorder." BRAIN. Broad Research in Artificial Intelligence and Neuroscience 11, no. 4 (2020): 89–117. https://doi.org/10.18662/brain/11.4/143.

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The theory of mind deficit, as the ability to attribute mentalstates to others, could explain some of the symptoms of patients withpsychotic disorder. The poor estimate of the mental states of other peoplecould explain paranoid thinking, some variations in speech, peculiaritiesin behavior and other symptoms found in patients with this diagnosis.The aim of the research is to describe the theory of mind in psychiatricpatients, as schizophrenia can be seen as a disorder of mental states. Theresearch sample consisted of 30 patients diagnosed with schizophrenia orschizoaffective disorder. Data are
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Bai, Wen, Yunhao Li, Jing Ji, et al. "Axial Compression Behavior of Symmetrical Full-Scale Concrete Filled Double Skin Steel Tube Stub Columns." Symmetry 14, no. 2 (2022): 223. http://dx.doi.org/10.3390/sym14020223.

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To investigate the bearing behavior of symmetrical full-scale different strength concrete filled double skin steel tube (CFDST) stub columns, 19 full-scale specimens were designed, considering the slenderness ratio (λ); the compression strength of core concrete and sandwich concrete (fcki, fcko), the thickness of the inner and outer steel tubes (ti, to); the diameter of inner and outer steel tubes (Di, Do); and the tensile strength of the inner and outer steel tubes (fyki, fyko) as the main parameters. Nonlinear constitutive models for concrete considering constraint effect were adopted, and a
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