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Journal articles on the topic 'Cycle cover'

Author: Grafiati

Published: 10 March 2023

Last updated: 31 July 2025

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1

Jamshy, Ury, and Michael Tarsi. "Short cycle covers and the cycle double cover conjecture." Journal of Combinatorial Theory, Series B 56, no. 2 (1992): 197–204. http://dx.doi.org/10.1016/0095-8956(92)90018-s.

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2

Assel, Raymond A. "Classification of Annual Great Lakes Ice Cycles: Winters of 1973–2002*." Journal of Climate 18, no. 22 (2005): 4895–905. http://dx.doi.org/10.1175/jcli3571.1.

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Abstract Annual seasonal average ice cover from 1973 to 2002 and associated dates of first ice, last ice, and ice duration are presented and discussed. The annual seasonal average ice cover of each Great Lake is used to define three ice cycle classes: mild, typical, and severe. About half of the severe ice cycles occurred from 1977 to 1982 and about half of the mild ice cycles occurred from 1998 to 2002. The seasonal progression of daily lake-averaged ice cover, spatial differences in ice cover, and differences among the Great Lakes for mild, typical, and severe ice cycles are discussed within

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3

Wang, Yu Sheng, Wen Xuan Ma, Ming Li, and Hao Jin. "Method of Life Prediction of Engine Cylinder Cover." Advanced Materials Research 677 (March 2013): 236–40. http://dx.doi.org/10.4028/www.scientific.net/amr.677.236.

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Cylinder cover is an important component of the engine. It is damaged by low cycle thermal fatigue, high cycle thermal fatigue and creep in operation. Thus, the life and reliability of the cylinder cover are important criteria for engines. The temperature field and stress field of the cylinder cover are computed by the sequentially coupled analysis method: the elastic strain, plastic strain and creep strain of the dangerous point on the cylinder cover are analyzed in ten startup-working-shut down cycles; and it is proved in theory that low cycle thermal fatigue is the primary factor affecting

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4

Hochbaum, Dorit S., and Eli V. Olinick. "The Bounded Cycle-Cover Problem." INFORMS Journal on Computing 13, no. 2 (2001): 104–19. http://dx.doi.org/10.1287/ijoc.13.2.104.10516.

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5

Silvestri, Selene, Gilbert Laporte, and Raffaele Cerulli. "The Rainbow Cycle Cover Problem." Networks 68, no. 4 (2016): 260–70. http://dx.doi.org/10.1002/net.21700.

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6

Janga, J. K., and K. R. Reddy. "Evaluation of Subtitle D Covers and Exposed Geomembrane Cover for Landfills: Sustainability and Resiliency." IOP Conference Series: Earth and Environmental Science 1337, no. 1 (2024): 012044. http://dx.doi.org/10.1088/1755-1315/1337/1/012044.

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Abstract Exposed geomembrane covers (EGMs) are considered as suitable alternatives to traditional subtitle D soil covers with compacted clay layers (CCL) for landfill cover applications. Compared to CCLs, which comprise various layers, including vegetation, erosion soil layers, and barrier liners, EGMs offer benefits such as reduced resource use. There are several risks associated with cover systems, ranging from climate-related shocks or stressors such as earthquakes, droughts, and floods to local shocks such as excessive differential settlement due to the uneven degradation of waste mass. He

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7

Galbiati, Giulia, Stefano Gualandi, and Francesco Maffioli. "On Minimum Reload Cost Cycle Cover." Electronic Notes in Discrete Mathematics 36 (August 2010): 81–88. http://dx.doi.org/10.1016/j.endm.2010.05.011.

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8

Galbiati, Giulia, Stefano Gualandi, and Francesco Maffioli. "On Minimum Reload Cost Cycle Cover." Discrete Applied Mathematics 164 (February 2014): 112–20. http://dx.doi.org/10.1016/j.dam.2011.12.006.

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9

Lai, Hong-Jian, and Hoifung Poon. "Cycle Cover Ratio of Regular Matroids." European Journal of Combinatorics 23, no. 8 (2002): 1007–14. http://dx.doi.org/10.1006/eujc.2002.0606.

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10

Pushkaraj, Jadhav, J. Thikane S., and Mashyal Suresh. "Optimization of Machining Cycle Time for Cylinder Head Cover." Recent Trends in Automation and Automobile Engineering 5, no. 1 (2022): 1–6. https://doi.org/10.5281/zenodo.6472525.

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<em>In the development of a high performance economic engine, a cylinder head design is required that would withstand the higher combustion pressures. The existing design of cylinder head requires long manufacturing cycle time. It is necessary to reduce solidification times without compromising the casting performance in order to reduce the cost per head. So we decided to apply the knowledge from our course study with some additional information and tried to reduce the cycle time of a cylinder head cover. This research basically works with some changes in tool combination and revising some par

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11

Neznakhina, E. D., Yu Yu Ogorodnikov, K. V. Rizhenko, and M. Yu Khachay. "APPROXIMATION ALGORITHMS WITH CONSTANT FACTORS FOR A SERIES OF ASYMMETRIC ROUTING PROBLEMS." Доклады Российской академии наук. Математика, информатика, процессы управления 514, no. 1 (2023): 89–97. http://dx.doi.org/10.31857/s268695432360218x.

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In this paper, the first fixed-ratio approximation algorithms are proposed for the series of asymmetric settings of the well-known combinatorial routing problems. Among them are the Steiner cycle problem, the prize-collecting traveling salesman problem, the minimum cost cycle cover problem by a bounded number of cycles, etc. Almost all the proposed algorithms rely on original reductions of the considered problems to auxiliary instances of the Asymmetric Traveling Salesman Problem and employ the breakthrough approximation results for this problem obtained recently by O. Svensson, J. Tarnawski,

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12

Willamo, T., T. Hackman, J. J. Lehtinen, et al. "Shapes of stellar activity cycles." Astronomy & Astrophysics 638 (June 2020): A69. http://dx.doi.org/10.1051/0004-6361/202037666.

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Context. Magnetic activity cycles are an important phenomenon both in the Sun and other stars. The shape of the solar cycle is commonly characterised by a fast rise and a slower decline, but not much attention has been paid to the shape of cycles in other stars. Aims. Our aim is to study whether the asymmetric shape of the solar cycle is common in other stars as well, and compare the cycle asymmetry to other stellar parameters. We also study the differences in the shape of the solar cycle, depending on the activity indicator that is used. The observations are also compared to simulated activit

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13

Chen, Zhi-Hong, Miaomiao Han, Hong-Jian Lai, and Mingquan Zhan. "Graphs with a 3-Cycle-2-Cover." Graphs and Combinatorics 31, no. 6 (2015): 2103–11. http://dx.doi.org/10.1007/s00373-014-1516-z.

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14

Bagheri Gh., Behrooz, and Behnaz Omoomi. "Small Oriented Cycle Double Cover of Graphs." Bulletin of the Malaysian Mathematical Sciences Society 39, no. 1 (2015): 219–25. http://dx.doi.org/10.1007/s40840-015-0169-2.

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15

Eastman, Ryan, and Stephen G. Warren. "Diurnal Cycles of Cumulus, Cumulonimbus, Stratus, Stratocumulus, and Fog from Surface Observations over Land and Ocean." Journal of Climate 27, no. 6 (2014): 2386–404. http://dx.doi.org/10.1175/jcli-d-13-00352.1.

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Abstract A worldwide climatology of the diurnal cycles of low clouds is obtained from surface observations made eight or four times daily at 3- or 6-h intervals from weather stations and ships. Harmonic fits to the daily cycle are made for 5388 weather stations with long periods of record, and for gridded data on a 5° × 5° or 10° × 10° latitude–longitude grid over land and ocean areas separately. For all cloud types, the diurnal cycle has larger amplitude over land than over ocean, on average by a factor of 2. Diurnal cycles of cloud amount appear to be proprietary to each low cloud type, show

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16

Arumugam, S., Indra Rajasingh, and P. Roushini Leely Pushpam. "Characterization of a class of graphs with unique minimum graphoidal cover." Tamkang Journal of Mathematics 34, no. 4 (2003): 317–26. http://dx.doi.org/10.5556/j.tkjm.34.2003.234.

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A graphoidal cover of a graph $ G$ is a collection $ \psi$ of (not necessarily open) paths in $ G$ such that every vertex of $ G$ is an internal vertex of at most one path in $ \psi$ and every edge of $ G$ is in exactly one path in $ \psi$. The minimum cardinality of a graphoidal cover of $ G$ is called the graphoidal covering number of $ G$ and is denoted by $ \eta$ . Two graphoidal covers $ \psi_1$ and $ \psi_2$ of a graph $ G$ are said to be isomorphic if there exists an automorphism $ f$ of $ G$ such that $ \psi_2=\{f(P)/P\in \psi_1\}$. A graph $ G$ is said to have a unique minimum graphoi

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17

Massons, J., D. Domingo, and J. Lorente. "Seasonal cycle of cloud cover analyzed using Meteosat images." Annales Geophysicae 16, no. 3 (1998): 331–41. http://dx.doi.org/10.1007/s00585-998-0331-3.

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Abstract. A cloud-detection method was used to retrieve cloudy pixels from Meteosat images. High spatial resolution (one pixel), monthly averaged cloud-cover distribution was obtained for a 1-year period. The seasonal cycle of cloud amount was analyzed. Cloud parameters obtained include the total cloud amount and the percentage of occurrence of clouds at three altitudes. Hourly variations of cloud cover are also analyzed. Cloud properties determined are coherent with those obtained in previous studies.Key words. Cloud cover · Meteosat

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18

Grzebisz, Witold, and Alicja Niewiadomska. "Nitrogen Cycle in Farming Systems." Agronomy 14, no. 1 (2023): 89. http://dx.doi.org/10.3390/agronomy14010089.

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19

Beniaich, Adnane, Marx Leandro Naves Silva, Fabio Arnaldo Pomar Avalos, Michele Duarte de Menezes, and Bernardo Moreira Cândido. "Determination of vegetation cover index under different soil management systems of cover plants by using an unmanned aerial vehicle with an onboard digital photographic camera." Semina: Ciências Agrárias 40, no. 1 (2019): 49. http://dx.doi.org/10.5433/1679-0359.2019v40n1p49.

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The permanent monitoring of vegetation cover is important to guarantee a sustainable management of agricultural activities, with a relevant role in the reduction of water erosion. This monitoring can be carried out through different indicators such as vegetation cover indices. In this study, the vegetation cover index was obtained using uncalibrated RGB images generated from a digital photographic camera on an unmanned aerial vehicle (UAV). In addition, a comparative study with 11 vegetation indices was carried out. The vegetation indices CIVE and EXG presented a better performance and the ind

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20

KUNG, Tzu-Liang, and Hon-Chan CHEN. "Complete Cycle Embedding in Crossed Cubes with Two-Disjoint-Cycle-Cover Pancyclicity." IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E98.A, no. 12 (2015): 2670–76. http://dx.doi.org/10.1587/transfun.e98.a.2670.

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21

Li, Tian Xia, and Feng Chen. "Application of Pro/Engineer in Mobile Front Cover Product Development and Mould Design." Advanced Materials Research 823 (October 2013): 577–80. http://dx.doi.org/10.4028/www.scientific.net/amr.823.577.

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In the mobile industry, mobile cover is the primary manifestations of the look of the phone, which is made up of complex curved surface, the cover design and directly affect the quality of phone design efficiency and competitiveness. Take mobile front cover as the example, introduced the process of product modeling and mold design using the Pro/E software. Elaborated this product 3D design method in detail, introduced with emphasis the mold design cycle and design of the parting surface, the mold die space and the core. Software applications shorten product cycles, mold design and processing c

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22

Reznichenko, Natalya, Tim Davies, James Shulmeister, and Mauri McSaveney. "Effects of debris on ice-surface melting rates: an experimental study." Journal of Glaciology 56, no. 197 (2010): 384–94. http://dx.doi.org/10.3189/002214310792447725.

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AbstractHere we report a laboratory study of the effects of debris thickness, diurnally cyclic radiation and rainfall on melt rates beneath rock-avalanche debris and sand (representing typical highly permeable supraglacial debris). Under continuous, steady-state radiation, sand cover >50 mm thick delays the onset of ice-surface melting by >12 hours, but subsequent melting matches melt rates of a bare ice surface. Only when diurnal cycles of radiation are imposed does the debris reduce the longterm rate of ice melt beneath it. This is because debris >50 mm thick never reaches a steady-

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23

Barnetson, J., S. Phinn, P. Scarth, and R. Denham. "ASSESSING LANDSAT FRACTIONAL GROUND-COVER TIME SERIES ACROSS AUSTRALIA’S ARID RANGELANDS: SEPARATING GRAZING IMPACTS FROM CLIMATE VARIABILITY." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-3/W2 (November 15, 2017): 15–26. http://dx.doi.org/10.5194/isprs-archives-xlii-3-w2-15-2017.

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Suitable measures of grazing impacts on ground cover, that enable separation of the effects of climatic variations, are needed to inform land managers and policy makers across the arid rangelands of Australia. This work developed and tested a time-series, changepoint detection method for application to time series of vegetation fractional cover derived from Landsat data to identify irregular and episodic ground-cover growth cycles. Utilising the High Performance Computing power of the Google Cloud Compute Engine these cycles were segmented to distinguish grazing impacts from that of climate va

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24

Rankin, W. T., and Elliot J. Tramer. "Understory succession and the gap regeneration cycle in a Tsuga canadensis forest." Canadian Journal of Forest Research 32, no. 1 (2002): 16–23. http://dx.doi.org/10.1139/x01-168.

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We examined understory succession in current and former canopy gaps in mature Tsuga canadensis (L.) Carrière forests in southeastern Ohio. First, we reconstructed understory succession in current gaps by sampling 28 gaps ranging from 0 to 9 years. Second, we reconstructed the gap history of a single Tsuga community by clustering release events evident in the growth rings of 156 trees. The two reconstructions formed an 80-year chronosequence, allowing us to examine both short-term effects of gaps as well as long-term effects of closed-canopy conditions on eight common understory species. Unders

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25

Zhang, Guanglu, Jindong Huang, Luoshu Wang, Zhenbo Geng, Dequan Zhang, and Juncheng Liu. "Design and Preparation of Anti-Reflection Nanoarray Structure on the Surface of Space Solar Cell Glass Cover." Coatings 13, no. 6 (2023): 1092. http://dx.doi.org/10.3390/coatings13061092.

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Space solar cell glass covers require high radiation resistance and wide-spectrum high light transmittance. The existing research on the preparation of thin films or special optical structures on the surface of solar cells rarely involves systematic research and the precise control of the high transmittance structural parameters of specific spectral bands by glass covers. Nanoarray structures were designed and constructed on high-purity quartz glass covers, achieving high anti-reflection within the 350–1100 nm range, the high energy part of the solar spectrum on Mars, regardless of the prepara

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26

Khachay, Michael, and Katherine Neznakhina. "Approximation of Euclidean k-size cycle cover problem." Croatian Operational Research Review 5, no. 2 (2014): 177–88. http://dx.doi.org/10.17535/crorr.2014.0006.

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27

Graf, Kaspar, Ulrich Schumann, Hermann Mannstein, and Bernhard Mayer. "Aviation induced diurnal North Atlantic cirrus cover cycle." Geophysical Research Letters 39, no. 16 (2012): n/a. http://dx.doi.org/10.1029/2012gl052590.

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28

Zhang, Cun-Quan. "Parity Subgraph, Shortest Cycle Cover, and Postman Tour." SIAM Journal on Discrete Mathematics 6, no. 3 (1993): 428–31. http://dx.doi.org/10.1137/0406034.

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29

Xu, Wenzheng, Weifa Liang, and Xiaola Lin. "Approximation Algorithms for Min-Max Cycle Cover Problems." IEEE Transactions on Computers 64, no. 3 (2015): 600–613. http://dx.doi.org/10.1109/tc.2013.2295609.

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30

Huck, Andreas. "Reducible configurations for the cycle double cover conjecture." Discrete Applied Mathematics 99, no. 1-3 (2000): 71–90. http://dx.doi.org/10.1016/s0166-218x(99)00126-2.

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31

Lai, Hong-Jian, and Xiangwen Li. "Small cycle cover of 2-connected cubic graphs." Discrete Mathematics 269, no. 1-3 (2003): 295–302. http://dx.doi.org/10.1016/s0012-365x(03)00058-x.

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32

Tarsi, Michael. "Semi-duality and the cycle double cover conjecture." Journal of Combinatorial Theory, Series B 41, no. 3 (1986): 332–40. http://dx.doi.org/10.1016/0095-8956(86)90054-7.

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33

M, Joice Punitha, and Suganya A. "Cover Pebbling Number of Some Cycle Related Graphs." Journal of Computer and Mathematical Sciences 10, no. 6 (2019): 1322–31. http://dx.doi.org/10.29055/jcms/1127.

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34

Genest, François. "Circle graphs and the cycle double cover conjecture." Discrete Mathematics 309, no. 11 (2009): 3714–25. http://dx.doi.org/10.1016/j.disc.2008.02.004.

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35

Wei, Chao, Rong-Xia Hao, and Jou-Ming Chang. "Two-disjoint-cycle-cover bipancyclicity of balanced hypercubes." Applied Mathematics and Computation 381 (September 2020): 125305. http://dx.doi.org/10.1016/j.amc.2020.125305.

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36

Moreno, Jorge, Simone Martins, and Yuri Frota. "A note on the rainbow cycle cover problem." Networks 73, no. 1 (2018): 38–47. http://dx.doi.org/10.1002/net.21833.

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37

Büyükçolak, Yasemin, Didem Gözüpek, and Sibel Özkan. "Minimum reload cost cycle cover in complete graphs." Networks 74, no. 3 (2019): 274–86. http://dx.doi.org/10.1002/net.21884.

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38

Cheng, Dongqin. "Two-disjoint-cycle-cover pancyclicity of augmented cubes." Discrete Applied Mathematics 371 (August 2025): 240–46. https://doi.org/10.1016/j.dam.2025.04.033.

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39

Quaas, J., O. Boucher, A. Jones, J. Kieser, and H. Joos. "Exploiting the weekly cycle as observed over Europe to analyse aerosol indirect effects in two climate models." Atmospheric Chemistry and Physics Discussions 9, no. 3 (2009): 11269–85. http://dx.doi.org/10.5194/acpd-9-11269-2009.

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Abstract. A weekly cycle in aerosol pollution and meteorological quantities is observed over Europe. In the present study we exploit this effect to analyse aerosol-cloud-radiation interactions. A weekly cycle is imposed on anthropogenic emissions in two general circulation models that include parameterizations of aerosol cycles and cloud microphysics. It is found that the simulated weekly cycles in sulfur dioxide, sulfate, and aerosol optical depth in both models agree reasonably well with the observed ones indicating model skill in simulating the aerosol cycle. A distinct weekly cycle in clou

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40

Silva, Guilherme Rosa da, Adam J. Liska, and Cimélio Bayer. "Cover Crops Can Reduce Greenhouse Gas Emissions from No-Till Maize in Southern Brazil: Insights from a Long-Term Field Experiment." Agronomy 15, no. 2 (2025): 267. https://doi.org/10.3390/agronomy15020267.

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Brazil is one of the countries that has the most agricultural area under no-till (NT) management. This research study aims to evaluate life-cycle greenhouse gas (GHG) emissions from maize (M) grain production in agroecosystems that used different cover crops under NT management in southern Brazil. The data for this study were from a long-term 41-year field experiment in southern Brazil. The long-term experiment evaluated the effects of fallow (F) and cover crops (oat (O), vetch (V), cowpea (B), pigeon pea (P), and lablab (L)) on nitrous oxide and methane emissions and soil carbon (C) sequestra

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41

Fonseca, Inês Cristina de Batista, Antonio Evaldo Klar, Rumy Goto, and Carmen Silvia Vieira Janeiro Neves. "Colored polyethylene soil covers and grafting effects on cucumber flowering and yield." Scientia Agricola 60, no. 4 (2003): 643–49. http://dx.doi.org/10.1590/s0103-90162003000400006.

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Cucumber (Cucumis sativus L.) is one of the most cultivated vegetable crops in plastic greenhouses in Brazil because of the short cycle and its high economic value in off-season harvests. To better understand this management technique the effect of different colored polyethylene soil covers was evaluated in relation to flowering and yield of the hybrid cucumber 'Yoshinari' grafted or not on the hybrid squash 'Ikky'. The polyethylene cover colors were black, white on black and green plus a control without cover. Covered but not grafted crops had a more uniform flowering distribution. The number

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42

Ma, Hua, Xue Wei Zhang, Zhen Bao Li, Wen Jing Wang, Fang Liang Zhang, and Jing Fu. "Seismic Performance of Steel Beam-Column Joint under Low Cyclic Loading with Multiple Cycles." Applied Mechanics and Materials 353-356 (August 2013): 2069–72. http://dx.doi.org/10.4028/www.scientific.net/amm.353-356.2069.

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An experiment of three T-shape beam-column steel joints with intensive cover plate was conducted under low cyclic loading with different cycle numbers, to study seismic performance of the joints subjected to long-period ground motions. Effects of cycle number on mechanical performance and length of plastic hinge were analyzed. The results show that as the cycle number increases, capacity of the joint decreases, and plastic hinge of the joint develops longer which appears closer to the cover plate, and the platform of skeleton curve grows longer, and the stiffness attenuates slightly.

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43

Margono, Belinda Arunarwati, Ahmad Basyirudin Usman, Budiharto ., and Ruandha Agung Sugardiman. "Indonesia’s Forest Resource Monitoring." Indonesian Journal of Geography 48, no. 1 (2016): 7. http://dx.doi.org/10.22146/ijg.12496.

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Forest cover in term of distribution, extent and types, is major information required to manage the forest resources. Notably for Indonesia, which covers by approximately 98 Mha (>50%) forests, consist of 93 Mha (49.6%) natural forest and 5 Mha (2.6%) plantations forest. The forests are invaluable, including significantly preserve carbon, maintain unique biodiversity, support water and mineral cycle, as well as support local and global community. Here we report efforts have been made for years in the Ministry of Forestry for providing land cover information. Those efforts are including earl

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44

Carneiro, Magda Silva, Caroline Cambraia Furtado Campos, and Flavio Nunes Ramos. "Liana and bamboo cover threaten shrub populations in Atlantic forest fragments." Australian Journal of Botany 65, no. 4 (2017): 375. http://dx.doi.org/10.1071/bt16121.

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Abiotic and biotic changes caused by forest fragmentation have led to the decline of many plant species. We sought to investigate how biotic (liana and bamboo cover) and abiotic (soil moisture, litter depth, and canopy openness) factors affect the total abundance and the numbers of individuals of Psychotria vellosiana Benth. at each stage of its life cycle (seedlings, juvenile I and II, adult reproductive and vegetative) in a fragmented landscape. P. vellosiana was selected because it is a forest species, important for fauna, especially ants and birds in the understory, and is highly abundant

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45

Peters, James Francis, and Tane Vergili. "Good coverings of proximal Alexandrov spaces. Path cycles in the extension of the Mitsuishi-Yamaguchi good covering and Jordan Curve Theorems." Applied General Topology 24, no. 1 (2023): 25–45. http://dx.doi.org/10.4995/agt.2023.17046.

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This paper introduces proximal path cycles, which lead to the main results in this paper, namely, extensions of the Mitsuishi-Yamaguchi Good Coverning Theorem with different forms of Tanaka good cover of an Alexandrov space equipped with a proximity relation as well as extension of the Jordan curve theorem. In this work, a path cycle is a sequence of maps h1,...,hi,...,hn-1 mod n in which hi : [ 0,1 ] → X and hi(1) = hi+1(0) provide the structure of a path-connected cycle that has no end path. An application of these results is also given for the persistence of proximal video frame shapes that

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46

Swestyani, Sondra, Yudi Rinanto, and Sri Widoretno. "PENINGKATAN KEMAMPUAN BERPIKIR LOGIS MELALUI PENERAPAN DISCOVERY LEARNING PADA MATERI SISTEM REPRODUKSIDI KELAS XI MIA 1 SMA BATIK 2 SURAKARTA TAHUN PELAJARAN 2014/2015." BIO-PEDAGOGI 5, no. 1 (2016): 20. http://dx.doi.org/10.20961/bio-pedagogi.v5i1.5398.

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<p>This research was aimed to improve the students' logical thinking in XI MIA 1 of SMA Batik 2 Surakarta Academic Year 2014/2015 about reproduction system material through <em>discovery learning</em> application.This research was a class action research which consisted of three cycles. Each cycle contains planning, implementing, observing and reflecting. The research subject was the students in XI MIA 1 of SMA Batik 2 Surakarta Academic Year 2014/2015. The data source was from the mind map that cover the logical thinking aspects. Data collecting techniques of this research u

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47

Kitiashvili, Irina N. "Global evolution of solar magnetic fields and prediction of activity cycles." Proceedings of the International Astronomical Union 15, S354 (2019): 147–56. http://dx.doi.org/10.1017/s174392132000071x.

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AbstractPrediction of solar activity cycles is challenging because physical processes inside the Sun involve a broad range of multiscale dynamics that no model can reproduce and because the available observations are highly limited and cover mostly surface layers. Helioseismology makes it possible to probe solar dynamics in the convective zone, but variations in differential rotation and meridional circulation are currently available for only two solar activity cycles. It has been demonstrated that sunspot observations, which cover over 400 years, can be used to calibrate the Parker-Kleeorin-R

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48

RANA, PRADUMNA B. "TRADE INTENSITY AND BUSINESS CYCLE SYNCHRONIZATION: THE CASE OF EAST ASIAN COUNTRIES." Singapore Economic Review 53, no. 02 (2008): 279–92. http://dx.doi.org/10.1142/s021759080800294x.

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This paper examines whether increasing trade intensities among East Asian countries have led to a synchronization of business cycles. It extends the work of Shin and Wang (2004) in two ways: by improving the specification of their business cycle correlation equation and by extending the sample to cover the post-crisis period. The study finds that intra-industry trade, rather than inter-industry trade, is the major factor in explaining business cycle co-movements in East Asia. This result has important implications for the prospects of introducing a single currency in the region.

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Luo, Yukun, Jie Jiang, and Ruihui Wang. "Analyzing Magnetic Network and its Variations over Solar Cycles 23, 24 and 25 Based on Magnetic Power Spectra." Proceedings of the International Astronomical Union 19, S365 (2023): 19–23. https://doi.org/10.1017/s1743921324000139.

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AbstractThe magnetic network is a typical magnetic structure of the quiet Sun. Investigating its cycle dependence is crucial for understanding its evolution. We aim to identify and analyze the spatial scales of the magnetic network within magnetic power spectra derived from high-resolution Solar and Heliospheric Observatory (SOHO)/Michelson Doppler Imager (MDI) and Solar Dynamics Observatory (SDO)/ Helioseismic and Magnetic Imager (HMI) synoptic magnetograms. The data sets cover the entirety of solar cycles 23, 24, and part of cycle 25. We find that the identified magnetic network sizes identi

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Hoeke, Jackson T., Kerstin Wasson, and Amanda S. Kahn. "Temporal patterns of the introduced sponge Hymeniacidon perlevis (Montagu, 1814) in the Elkhorn Slough, California, USA." Aquatic Invasions 20, no. 1 (2025): 33–51. https://doi.org/10.3391/ai.2025.20.1.145912.

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Hymeniacidon perlevis is a cosmopolitan sponge with a seasonal life cycle. We investigated seasonal and interannual dynamics of H. perlevis in Elkhorn Slough estuary, where it is an introduced species, and explored correlations between sponge cover and environmental conditions. We used sponge cover to estimate the potential effects of H. perlevis on its environment, and how those could vary across its seasonal life cycle. We found that recruitment is currently restricted to the upper estuary and while it varies annually, the frequency and density of sponge recruits have generally increased fro

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