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Artykuły w czasopismach na temat „Bases de cycles minimum”

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Data publikacji: 14 grudnia 2024

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1

Bradshaw, Zachary, and Richard H. Hammack. "Minimum cycle bases of direct products of graphs with cycles." Ars Mathematica Contemporanea 2, no. 1 (2009): 101–19. http://dx.doi.org/10.26493/1855-3974.77.3d2.

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Mehlhorn, Kurt, and Dimitrios Michail. "Minimum cycle bases." ACM Transactions on Algorithms 6, no. 1 (2009): 1–13. http://dx.doi.org/10.1145/1644015.1644023.

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3

Xu, Mei. "Cycle Bases Structure of out Planar Graphs on the Projective Plane in Mechanics Engineering." Applied Mechanics and Materials 312 (February 2013): 745–48. http://dx.doi.org/10.4028/www.scientific.net/amm.312.745.

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In this paper we investigate the cycle base structure of 2-connected graphs on the projective plane and show the minimum cycle bases of 2-connected outer planar graph G in the case of ew (G) 5. Then give a proof about the one-one property between the minimum cycle bases and the shortest no contractible cycles.

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Hellmuth, Marc, Philipp-Jens Ostermeier, and Peter F. Stadler. "Minimum cycle bases of lexicographic products." Ars Mathematica Contemporanea 5, no. 2 (2012): 223–34. http://dx.doi.org/10.26493/1855-3974.172.8a7.

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5

Berger, Franziska, Peter Gritzmann, and Sven de Vries. "Minimum Cycle Bases for Network Graphs." Algorithmica 40, no. 1 (2004): 51–62. http://dx.doi.org/10.1007/s00453-004-1098-x.

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Stadler, Peter F. "Minimum cycle bases of Halin graphs." Journal of Graph Theory 43, no. 2 (2003): 150–55. http://dx.doi.org/10.1002/jgt.10111.

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7

Ren, Han, and Mo Deng. "Minimum cycle bases of graphs on surfaces." Discrete Mathematics 307, no. 22 (2007): 2654–60. http://dx.doi.org/10.1016/j.disc.2006.11.020.

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8

Liu, Tsung-Hao, and Hsueh-I. Lu. "Minimum cycle bases of weighted outerplanar graphs." Information Processing Letters 110, no. 21 (2010): 970–74. http://dx.doi.org/10.1016/j.ipl.2010.08.005.

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9

Horton, Joseph D., and Franziska Berger. "Minimum cycle bases of graphs over different fields." Electronic Notes in Discrete Mathematics 22 (October 2005): 501–5. http://dx.doi.org/10.1016/j.endm.2005.06.092.

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10

Carrasco, V. M. S., H. Hayakawa, C. Kuroyanagi, M. C. Gallego, and J. M. Vaquero. "Strong evidence of low levels of solar activity during the Maunder Minimum." Monthly Notices of the Royal Astronomical Society 504, no. 4 (2021): 5199–204. http://dx.doi.org/10.1093/mnras/stab1155.

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ABSTRACT The Maunder Minimum (MM) was a period of prolonged solar activity minimum between 1645 and 1715. Several works have identified a significant number of problematic spotless days in the MM included in existing data bases. We have found a list of exact spotless (in the second half of 1709) and spot days (January and August 1709) provided by Johann Heinrich Müller. We computed the most probable value and upper/lower limits of the active day fraction (ADF) from Müller's data using the hypergeometrical probability distribution. Our sample is not strictly random because Müller recorded obser

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11

Rizzi, Romeo. "Minimum Weakly Fundamental Cycle Bases Are Hard To Find." Algorithmica 53, no. 3 (2007): 402–24. http://dx.doi.org/10.1007/s00453-007-9112-8.

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12

Kavitha, Telikepalli, Kurt Mehlhorn, and Dimitrios Michail. "New Approximation Algorithms for Minimum Cycle Bases of Graphs." Algorithmica 59, no. 4 (2009): 471–88. http://dx.doi.org/10.1007/s00453-009-9313-4.

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13

Amaldi, Edoardo, Leo Liberti, Francesco Maffioli, and Nelson Maculan. "Algorithms for finding minimum fundamental cycle bases in graphs." Electronic Notes in Discrete Mathematics 17 (October 2004): 29–33. http://dx.doi.org/10.1016/j.endm.2004.03.009.

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14

Hammack, Richard. "Minimum cycle bases of direct products of complete graphs." Information Processing Letters 102, no. 5 (2007): 214–18. http://dx.doi.org/10.1016/j.ipl.2006.12.012.

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15

Fan, Xujiao, Yong Xu, Xue Su, and Jinhuan Wang. "Finding Cut-Edges and the Minimum Spanning Tree via Semi-Tensor Product Approach." Journal of Systems Science and Information 6, no. 5 (2018): 459–72. http://dx.doi.org/10.21078/jssi-2018-459-14.

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Abstract Using the semi-tensor product of matrices, this paper investigates cycles of graphs with application to cut-edges and the minimum spanning tree, and presents a number of new results and algorithms. Firstly, by defining a characteristic logical vector and using the matrix expression of logical functions, an algebraic description is obtained for cycles of graph, based on which a new necessary and sufficient condition is established to find all cycles for any graph. Secondly, using the necessary and sufficient condition of cycles, two algorithms are established to find all cut-edges and

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16

Giampapa, Mark S. "Stellar cycles: general properties and future directions." Proceedings of the International Astronomical Union 7, S286 (2011): 257–67. http://dx.doi.org/10.1017/s1743921312004954.

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AbstractWe discuss the general properties of stellar cycles with emphasis on their amplitudes as a function of stellar parameters, particularly those stellar characteristics relevant to dynamo-driven magnetic activity. We deduce an empirical scaling relation between cycle frequency and differential rotation based on previously established empirical relations. We also compare the recent Cycle 23 to cycles in solar-type stars. We find that the extended minimum of Cycle 23 resembled in its Ca II H & K emission at minimum the mean levels of activity seen in stars with no cycles.

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17

Mbitu, Elisabeth Tansiana, and Seng-Chi Chen. "Designing Limit-Cycle Suppressor Using Dithering and Dual-Input Describing Function Methods." Mathematics 8, no. 11 (2020): 1978. http://dx.doi.org/10.3390/math8111978.

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This paper described a method to design a limit-cycle suppressor. The dithering technique was used to eliminate self-sustained oscillations or limit cycles. Otherwise, the Dual Input Describing Function (DIDF) method was applied to design dither parameters and analyze the existence of limit cycles. This method was done in a nonlinear system with relay nonlinearity using three standard dither signals, namely sine, triangle, and square waves. The aim of choosing varying dithers was to investigate the effect of dither shapes and the minimum amplitude required for the quenching strategy. First, th

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18

Ma, Deng Ju, and Han Ren. "Minor and minimum cycle bases of a 3-connected planar graph." Acta Mathematica Sinica, English Series 25, no. 4 (2009): 649–56. http://dx.doi.org/10.1007/s10114-009-7160-5.

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19

Doerr, Carola, G. Ramakrishna, and Jens M. Schmidt. "Computing Minimum Cycle Bases in Weighted Partial 2-Trees in Linear Time." Journal of Graph Algorithms and Applications 18, no. 3 (2014): 325–46. http://dx.doi.org/10.7155/jgaa.00325.

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20

Liberti, Leo, Edoardo Amaldi, Francesco Maffioli, and Nelson Maculan. "Mathematical models and a constructive heuristic for finding minimum fundamental cycle bases." Yugoslav Journal of Operations Research 15, no. 1 (2005): 15–24. http://dx.doi.org/10.2298/yjor0501015l.

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The problem of finding a fundamental cycle basis with minimum total cost in a graph arises in many application fields. In this paper we present some integer linear programming formulations and we compare their performances, in terms of instance size, CPU time required for the solution, and quality of the associated lower bound derived by solving the corresponding continuous relaxations. Since only very small instances can be solved to optimality with these formulations and very large instances occur in a number of applications, we present a new constructive heuristic and compare it with altern

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21

Reich, Alexander. "Minimum strictly fundamental cycle bases of planar graphs are hard to find." Discrete Applied Mathematics 205 (May 2016): 150–59. http://dx.doi.org/10.1016/j.dam.2015.12.001.

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22

Al-Taie, Dr Ghassan A. "Influence of Heating Rates and Residual Monomer on Dimensional Changes of Acrylic Resin Denture Base." Mustansiria Dental Journal 5, no. 4 (2018): 393–97. http://dx.doi.org/10.32828/mdj.v5i4.562.

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Background: Most of spaces between the denture base and master cast produced by shrinkage of the base material during polymerization and by the difference in coefficient of thermal expansion of the cast and acrylic resin. The aim of this study is to evaluate the effect of the different heating rates and the presence of residual monomer on the accuracy different curing denture base by recording the gap space between the cast and the dentureMaterials and methods: 18 maxillary edentulous stone cast were prepared then divided into three main groups, denture bases were constructed. In Group A, usin

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23

Cui, Jiahui, Nguyen Duc Van, Feng Zhang, and Yukio Hama. "Evaluation of Applicability of Minimum Required Compressive Strength for Cold Weather Concreting Based on Winter Meteorological Factors." Materials 15, no. 23 (2022): 8490. http://dx.doi.org/10.3390/ma15238490.

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In this paper, we evaluated the applicability of the minimum required compressive strength for cold weather concreting based on winter meteorological factors. In this study, a compressive strength test, dynamic elastic modulus test, hydration degree test, underwater weighing test, and freeze–thaw test were performed to investigate the effect of compressive strength development at early ages on frost resistance of concrete. In particular, the ASTM equivalent number of cycles (CyASTM−sp) of various locations was estimated based on winter meteorological factors. The results of experiments showed

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24

Nascimento, Luan de Oliveira, Vanderley Borges dos Santos, Sandra Bezerra da Silva, et al. "Morphoagronomic characterization and production gain after two mass selection cycles in Nawa Sheki landraces maize originated from the Western Brazilian Amazon." March 2023, no. 17(03):2023 (March 3, 2023): 299–307. http://dx.doi.org/10.21475/ajcs.23.17.03.p3831.

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Intensive breeding and artificial selection of the desired traits in maize landraces through domestication have created modern maize, which needs a great technological contribution for optimal productive development. However, the narrowing of the genetic bases of maize made it difficult for traditional farmers to access productive genetic material that maintains the genotypic and phenotypic diversity capable of ensuring productive sustainability. Thus, objective of the study was to evaluate the variability and production gain in morphoagronomic characters of Nawa Sheki landraces maize after tw

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25

Zhang, Bin, Benjamin Ducharne, Bhaawan Gupta, Gael Sebald, Daniel Guyomar, and Jun Gao. "Experimental sea wave energy extractor based on piezoelectric Ericsson cycles." Journal of Intelligent Material Systems and Structures 29, no. 6 (2017): 1102–12. http://dx.doi.org/10.1177/1045389x17730917.

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Recycling ambient energies with electric generators instead of employing batteries with limited lifespans has motivated a large scientist community over two decades. Sea waves exhibit a large energy density. The amount of energy that could be extracted from the sea waves is very high. This work describes a technique of sea wave energy extraction based on a piezoelectric conversion and an analogy with thermodynamic Ericsson loops. By synchronizing external electric field to the maximum and the minimum of the sea wave mechanical stress excitations, the piezoelectric material dielectric hysteresi

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26

Buccino, A. P., L. Sraibman, P. M. Olivar та F. O. Minotti. "An application of a solar-type dynamo model for ε Eridani". Monthly Notices of the Royal Astronomical Society 497, № 3 (2020): 3968–75. http://dx.doi.org/10.1093/mnras/staa1908.

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ABSTRACT During the last decade, the relation between activity cycle periods and stellar parameters has received special attention. The construction of reliable registries of activity reveals that solar-type stars exhibit activity cycles with periods from few years to decades and, in some cases, long and short activity cycles coexist suggesting that two dynamos could operate in these stars. In particular, ε Eridani is an active young K2V star (0.8 Gyr), which exhibits short and long-term chromospheric cycles of ∼3 and ∼13-yr periods. Additionally, between 1985 and 1992, the star went through a

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27

Marliana, Eka, Ismail Ismail, and Moch Yanuar Ramadhan. "ANALISA DAN REDESAIN SPROCKET ASSEMBLY CONVEYOR RAKE C2 DI STASIUN KETEL PG NGADIREJO." ELEMEN : JURNAL TEKNIK MESIN 8, no. 2 (2022): 77–85. http://dx.doi.org/10.34128/je.v8i2.167.

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Abstract. In the Ngadirejo sugar plant, sprocket shaft on the east C2 rake conveyor at the boiler station always failure every year. This conveyor is used for the process of fuel dregs supply at the boiler station. In this research, the analysis of failure and fatigue with the finite element method in Ansys will be carried out. The material analyzed is HQ705 with static loading. The analysis carried out includes static structural analysis and fatigue analysis on the sprocket shaft. Based on this analysis, found that the maximum displacement is 0.001163 m, the maximum equivalent stress is 71.8

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28

Senthilkumar, P., Kasmaruddin Che Hussin, Mohamad Zamhari Tahir, T. Padmapriya, and S. V. Manikanthan. "An Interference Optimization – Induced Electrical Turbine Fault Prediction and Analysis Method." WSEAS TRANSACTIONS ON POWER SYSTEMS 18 (December 5, 2023): 293–300. http://dx.doi.org/10.37394/232016.2023.18.30.

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Predicting electrical turbine faults is decisive for consistent operation and power generation output. Based on the operative cycles of the electrical turbine, the faults are predicted to prevent power generation interruptions. This paper introduces an Interference Optimization-based Fault Prediction Method (IO-FPM) for serving smooth operation purposes. In this method, the inferred optimization using classifier tree learning is induced for segregating the operating cycles of the turbine. The maximum and minimum threshold conditions for turbine operation using resistance and magnitude of the b

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29

Thomas, Simon, Mathew Owens, Mike Lockwood, and Chris Owen. "Decadal trends in the diurnal variation of galactic cosmic rays observed using neutron monitor data." Annales Geophysicae 35, no. 4 (2017): 825–38. http://dx.doi.org/10.5194/angeo-35-825-2017.

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Abstract. The diurnal variation (DV) in galactic cosmic ray (GCR) flux is a widely observed phenomenon in neutron monitor data. The background variation considered primarily in this study is due to the balance between the convection of energetic particles away from the Sun and the inward diffusion of energetic particles along magnetic field lines. However, there are also times of enhanced DV following geomagnetic disturbances caused by coronal mass ejections or corotating interaction regions. In this study we investigate changes in the DV over four solar cycles using ground-based neutron monit

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Abdelmalek, Azizi, Benamara Jamal, Ismaili Moulay Chrif, and Talbi Mohammed. "Cycles of reduced ideals and class number of pure cubic number field." MATHEMATICA 63 (86), no. 1 (2021): 13–22. http://dx.doi.org/10.24193/mathcluj.2021.1.02.

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Marzuki, Abdul Gafur. "Developing Speaking Skill through Oral Report in an EFL Class in Indonesia." Al-Ta lim Journal 24, no. 3 (2017): 243–54. http://dx.doi.org/10.15548/jt.v24i3.330.

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This Classroom Action Research aims at developing students’ speaking skill through the application of oral report technique. This research is conducted collaboratively in three cycles in which researcher acts as a lecturer while his collaborator acts as an observer and each cycle consists of two meetings. Data of this research is attained from two main sources namely qualitative and quantitative data. The data shows that In preliminary study, 35.5% students could answer questions given by researcher through interview but the achievement score shows that 13.3% students could fulfill the minimum

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Alpkaya, Alican Tuncay, and Senay Mihcin. "Sensitivity Analysis of Wear on Metal-On-Metal Bearing Couples via Verification of Numeric and Analytic Methods." Hittite Journal of Science and Engineering 11, no. 2 (2024): 57–67. http://dx.doi.org/10.17350/hjse19030000332.

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Wear mechanism is important since it leads to revisions in Total Hip Replacement (THR) surgeries. Contact pressure plays an important role in wear mechanisms and needs to be investigated in detail to obtain more accurate wear predictions to understand the wear performance of the implant in the design stage. This study proposes a methodology for verification of contact pressure and pressure distribution via numeric and analytic methods to be used in wear calculations. Based on Hertz’s contact theory, the contact pressure and the contact area ae calculated in the analytical method. The results a

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33

Qu, Yi. "Towards Innovation of German Teaching via IoT Assistance and Virtual Classroom." Journal of Combinatorial Mathematics and Combinatorial Computing 119, no. 1 (2024): 245–54. http://dx.doi.org/10.61091/jcmcc119-24.

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The penetration of virtual classroom teaching into German teaching is the presentation of teaching innovation in the information age. In this work, we explore the necessity of applying virtual classroom teaching in German classrooms and the effective strategies of German teaching innovation in virtual classrooms, to provide some suggestions for the reform of German teaching. First, the GPS trajectories are transformed into a sequence of hotspot regions using the spatiotemporal properties of GPS points. Then, a sequential pattern mining algorithm of asynchronous cycles with multiple minimum sup

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Gao, Yang, Changhong Liu, Yuan Liang, Sadegh Kouhestani Hamed, Fuwei Wang, and Bo Bi. "Minimizing Energy Consumption and Powertrain Cost of Fuel Cell Hybrid Vehicles with Consideration of Different Driving Cycles and SOC Ranges." Energies 15, no. 17 (2022): 6167. http://dx.doi.org/10.3390/en15176167.

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Hydrogen consumption is an important performance indicator of fuel cell hybrid vehicles (FCHVs). Previous studies have investigated fuel consumption minimization both under different driving cycles and using various power management strategies. However, different constrains on battery state of charge (SOC) ranges can also affect fuel consumption dramatically. In this study, we develop a power-source sizing model based on the Pontryagin’s Minimum Principle (PMP) to minimize the fuel consumption of FCHVs, considering different driving cycles (i.e., FTP-72 and US06) and SOC ranges (conservative 5

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35

Moriya, Toru, Hiroko Miyahara, Motonari Ohyama, et al. "A Study of Variation of the 11-yr Solar Cycle before the onset of the Spoerer Minimum based on Annually measured 14C Content in tree Rings." Radiocarbon 61, no. 6 (2019): 1749–54. http://dx.doi.org/10.1017/rdc.2019.123.

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ABSTRACTProxy-based observations of solar activity in the past have revealed long-term variations, such as the Gleissberg cycle (~88 yr), de Vries cycle (~200 yr), and the Hallstatt cycle (~2000 yr). Such long-term variations of solar activity sometimes cause the disappearance of sunspots for several decades. Currently, solar activity is becoming weaker, and there is a possibility that another long-term sunspot minimum could occur. However, the detailed mechanism of the weakening in solar activity is unknown, and the prediction of solar activity is ambiguous. In this study, we investigate the

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Garishin, Oleg K., Vladimir V. Shadrin, Alexander P. Voznyakovskii, and Anna Yu Neverovskaya. "Cyclic tests of viscoelastic highly elastic materials according to the ‘Nested cycles’ program." Вестник Пермского университета. Физика, no. 3 (2024): 40–49. http://dx.doi.org/10.17072/1994-3598-2024-3-40-49.

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Experimental studies of the viscoelastic properties of elastomeric nanocomposites based on styrene-butadiene rubber and binary filler (carbon black and detonation nanodiamonds) were carried out. In order to most effectively identify the features of the viscoelastic behavior of these materials (which depend not only on the deformation but also on its rate), we used a special test program with ‘nested cycles’ developed at the Institute of Continuous Media Mechanics of the Ural Branch of the Russian Academy of Sciences. During testing, the sample is subjected to uniaxial cyclic loading with the a

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Carrasco, V. M. S., J. M. Vaquero, and A. J. P. Aparicio. "Assessing the Evolution of Solar Cycle 25: A Weak-moderate Cycle." Research Notes of the AAS 8, no. 7 (2024): 183. http://dx.doi.org/10.3847/2515-5172/ad62fb.

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Abstract This note aims to analyze the evolution of the sunspot number for Solar Cycle 25, updating our previous findings on this topic. We compare daily, monthly and 13 months smoothed sunspot numbers for Solar Cycle 25 with those from previous cycles since mid-18th century (Solar Cycles 1–25). The highest daily, monthly and 13 months smoothed values for Solar Cycle 25 are significantly lower than the mean and median values considering all cycles. In particular, Solar Cycle 25 ranks 17th in terms of the highest 13 months smoothed sunspot number at this point in the cycle. Based on current dat

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Kilpua, E. K. J., C. O. Lee, J. G. Luhmann, and Y. Li. "Interplanetary coronal mass ejections in the near-Earth solar wind during the minimum periods following solar cycles 22 and 23." Annales Geophysicae 29, no. 8 (2011): 1455–67. http://dx.doi.org/10.5194/angeo-29-1455-2011.

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Abstract. In this paper we examine the occurrence rates and properties of interplanetary coronal mass ejections (ICMEs) and solar activity levels during the minima following solar cycle 22 (January 1995–December 1997) and 23 (January 2007–April 2010) minima using observations from the OMNI data base. Throughout the minimum following cycle 22 the CME and ICME rates roughly tracked each other, while for the minimum following cycle 23 they diverged. During the minimum after solar cycle 23, there were large variations in the streamer belt structure. During the lowest activity period of cycle 23 (b

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Shibaev, I. G. "Estimation of the Average Values of the Wolf Numbers of Cycles of the Dalton Minimum Based on the Characteristics of Reliable Cycles of a Series." Геомагнетизм и аэрономия 63, no. 3 (2023): 403–8. http://dx.doi.org/10.31857/s001679402210025x.

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The source material for the number of Wolf numbers is both archival records of disparate observationsand regular observatory observations. Many researchers rely on a series of Wolf numbers, includingrestored data of archival records, although the properties and characteristics of the restored and reliable partsof the series differ significantly. The parameters of the restored part itself are also contradictory. Naturally,matching the properties of the reconstructed and reliable series will smooth the contradictions and expandthe array of more reliable data. Taking the relationship between the

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40

Ayres, Thomas. "The Cycles of Alpha Centauri: Double Dipping of AB." Astronomical Journal 166, no. 5 (2023): 212. http://dx.doi.org/10.3847/1538-3881/acfef5.

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Abstract In mid-2023, the Sunlike dwarfs of nearby α Centauri (HD 128620 (“A”): G2 V; HD 128621 (“B”): K1 V; hereafter “AB”) coincidentally both entered coronal (T ≈ 1–3 MK) low states in their long-term X-ray cycles, as captured by the Chandra Observatory and its High Resolution Camera (HRC-I). The assessment benefited from a sensitivity degradation model for HRC-I based on a “check star,” the F subgiant Procyon (α Canis Minoris A; HD 61421: F5 IV–V), further validated by Hubble Space Telescope time series of the Fe xii 1241.985 Å and 1349.396 Å coronal forbidden lines (T ≈ 1.6 MK) of all thr

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41

Stangl, Martin, and Ulrich Foelsche. "Challenges of Using Historical Aurora Observations for the Reconstruction of Solar Activity before the 19th Century, Especially during and near the Maunder Minimum." Atmosphere 15, no. 8 (2024): 941. http://dx.doi.org/10.3390/atmos15080941.

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In order to complement gaps in the surveillance of solar activity in historical times, various proxies are used to reconstruct past solar cycles and long-term maxima and minima of solar activity, the most famous being the Maunder Minimum (MM), which is usually defined to span the period between the years 1645 and 1715. We explain the problems within existing data bases and call upon trying to find the original sources of Schröder, since his aurorae catalog spans the whole MM and contradicts what has been deduced from more used compilations. We take a critical look at the proposed source-critic

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Nurhuda, Nurhuda, Ruqiah Ganda Putri Panjaitan, and Wartiningsih Wartiningsih. "Enhancing learning outcomes through problem-based learning in plant reproduction topics." Jurnal Pendidikan Informatika dan Sains 13, no. 1 (2024): 1–8. http://dx.doi.org/10.31571/saintek.v13i1.7408.

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This study aims to enhance students' learning outcomes on the topic of plant reproduction in 9th-grade classes through the application of the Problem-Based Learning (PBL) model. This study used a Classroom Action Research (CAR) methodology with two learning cycles to improve student learning outcomes on the topic of plant reproduction in 9th grade. In the first cycle, the average learning outcome score was 72, which is below the minimum mastery criterion (<75). Observations were made by an observer regarding the students' learning activities and the teaching process conducted by the teacher

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Efimenko, V. M. Efimenko, and V. G. Lozitsky. "PREDICTION OF THE AMPLITUDE OF 25 TH SOLAR CYCLE USING THE RATE OF INCREASE OF SOLAR ACTIVITY." Odessa Astronomical Publications 35 (December 14, 2022): 95–98. http://dx.doi.org/10.18524/1810-4215.2022.35.268201.

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A prediction of the amplitude of the 25th cycle of solar activity is proposed based on the analysis of data on 24 previous solar cycles, which relate to the statistical relationship between the rate of increase in the number of sunspots in the phase of the growth curve and the amplitude of the cycle. It turned out that the forecasting result depends on which section of the growth curve is taken as the basis for forecasting, as well as whether all 24 cycles are taken into account, or only the odd ones. The prediction result is also affected by the initial assumption about monotonicity or non-mo

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Santos, Jenifer, Luis Alfonso Trujillo-Cayado, Francisco Carrillo, María Luisa López-Castejón, and María Carmen Alfaro-Rodríguez. "Relation between Droplet Size Distributions and Physical Stability for Zein Microfluidized Emulsions." Polymers 14, no. 11 (2022): 2195. http://dx.doi.org/10.3390/polym14112195.

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Zein, a subproduct of the food industry and a protein, possesses limited applications due to its high hydrophobic character. The objective of this research was to investigate the influence of homogenization pressure and cycles on the volumetric mean diameter (D4,3), span values, and Turbiscan Stability Index (TSI) using the response surface methodology for microfluidized emulsions containing zein as a unique stabilizer. Results showed that homogenization pressure seems to be the most influential parameter to obtain enhanced physical stability and droplet size distributions, with the optimum be

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Nurlaelah, Nurlaelah. "Problem-Based Learning Method for Improving the Learning Achievement of Students." Edunesia: Jurnal Ilmiah Pendidikan 4, no. 2 (2023): 447–57. http://dx.doi.org/10.51276/edu.v4i2.330.

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The issue with this study is the low levels of student learning outcomes and learning activities in the sample IPS2 individuals. The objective of this project is to raise student learning outcomes and active learning achievement in social studies. PTK, or classroom action research, is the term used to describe this sort of study. Planning, action implementation, observation, and reflection are all phases of research. The information used in this study came from watching student learning outcomes and activities in Social Sciences 2 courses. According to the recapitulation data, the first cycle'

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Agee, Ernest M., Emily Cornett, and Kandace Gleason. "An Extended Solar Cycle 23 with Deep Minimum Transition to Cycle 24: Assessments and Climatic Ramifications." Journal of Climate 23, no. 22 (2010): 6110–14. http://dx.doi.org/10.1175/2010jcli3831.1.

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Abstract The extended length of solar cycle 23 and the associated deep quiet period (QP) between cycles 23 and 24 have been examined using the international sunspot record from 1755 to 2010. This study has also introduced a QP definition based on a (beginning and ending) mean monthly threshold value of less than 10 for the sunspot number. Features addressed are the length and intensity of cycle 23, the length of the QP and the associated number of spotless days, and the respective relationships between cycle intensity, length, and QP. The length of cycle 23 (153 months) is second only to cycle

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Chiu, Fu-Chien. "Resistance Switching Characteristics in ZnO-Based Nonvolatile Memory Devices." Advances in Materials Science and Engineering 2013 (2013): 1–5. http://dx.doi.org/10.1155/2013/362053.

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Bipolar resistance switching characteristics are demonstrated in Pt/ZnO/Pt nonvolatile memory devices. A negative differential resistance or snapback characteristic can be observed when the memory device switches from a high resistance state to a low resistance state due to the formation of filamentary conducting path. The dependence of pulse width and temperature on set/reset voltages was examined in this work. The exponentially decreasing trend of set/reset voltage with increasing pulse width is observed except when pulse width is larger than 1 s. Hence, to switch the ZnO memory devices, a m

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Braga, Mónica, and Javier Marenco. "Facets based on cycles and cliques for the acyclic coloring polytope." RAIRO - Operations Research 54, no. 6 (2020): 1863–74. http://dx.doi.org/10.1051/ro/2019098.

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A coloring of a graph is an assignment of colors to its vertices such that any two vertices receive distinct colors whenever they are adjacent. An acyclic coloring is a coloring such that no cycle receives exactly two colors, and the acyclic chromatic number χA(G) of a graph G is the minimum number of colors in any such coloring of G. Given a graph G and an integer k, determining whether χA(G) ≤ k or not is NP-complete even for k = 3. The acyclic coloring problem arises in the context of efficient computations of sparse and symmetric Hessian matrices via substitution methods. In a previous wor

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Carslaw, D. C. "On the changing seasonal cycles and trends of ozone at Mace Head, Ireland." Atmospheric Chemistry and Physics Discussions 5, no. 4 (2005): 5987–6011. http://dx.doi.org/10.5194/acpd-5-5987-2005.

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Abstract. A seasonal-trend decomposition technique based on a locally-weighted regression smoothing (Loess) approach has been used to decompose monthly ozone concentrations at Mace Head (Ireland) into trend, seasonal and irregular components. The trend component shows a steady increase from 1990–2004, which is confirmed by statistical testing that shows that ozone concentrations at Mace Head have increased at the p=0.06 level by 0.18±0.04 ppb yr−1. By considering different air mass origins using a trajectory analysis, it has been possible to separate air masses into "polluted" and "unpolluted"

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Carslaw, D. C. "On the changing seasonal cycles and trends of ozone at Mace Head, Ireland." Atmospheric Chemistry and Physics 5, no. 12 (2005): 3441–50. http://dx.doi.org/10.5194/acp-5-3441-2005.

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Abstract. A seasonal-trend decomposition technique based on a locally-weighted regression smoothing (Loess) approach has been used to decompose monthly ozone concentrations at Mace Head (Ireland) into trend, seasonal and irregular components. The trend component shows a steady increase from 1990–2004, which is confirmed by statistical testing which shows that ozone concentrations at Mace Head have increased at the p=0.06 level by 0.18±0.04 ppb yr−1. By considering different air mass origins using a trajectory analysis, it has been possible to separate air masses into "polluted" and "unpolluted

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