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Journal articles on the topic 'Density'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Willey, Ronald R. "Designing Metallic Neutral Density Filters with Constant Optical Density Versus Wavelength." Space Science Journal 1, no. 2 (2024): 01–07. http://dx.doi.org/10.33140/ssj.01.02.08.

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Observations in space and on earth can be subject to wide dynamic ranges of light levels which may need to be controlled by neutral density filters. The optical density (OD) of neutral density (ND) filters made with single metal layers is often not very neutral or constant in OD versus wavelength over the wavelength band of interest. Photographers are the major users of quantities of ND filters, but there are many other applications for smaller numbers of ND filters. There are a limited number of publications on how to design metallic ND filters. It is shown here that designs of metal-dielectr

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2

Youssef, M. M. A. "Relationship between plant density and population density of Meloidogyne incognita on eggplant." Pakistan Journal of Nematology 37, no. 1 (2019): 21–24. http://dx.doi.org/10.18681/pjn.v37.i01.p21-24.

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3

De Koning, J. R. A., E. J. Bakker, and P. C. Rem. "Sorting of vegetable seeds by magnetic density separation in comparison with liquid density separation." Seed Science and Technology 39, no. 3 (2011): 593–603. http://dx.doi.org/10.15258/sst.2011.39.3.06.

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4

Shabat, Hafedh Ali, Khamael Raqim Raheem, and Wafaa Mohammed Ridha Shakir. "Blind Steganalysis Method Using Image Spectral Density and Differential Histogram Correlative Power Spectral Density." Journal of Image and Graphics 12, no. 1 (2024): 10–15. http://dx.doi.org/10.18178/joig.12.1.10-15.

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Recent research has demonstrated the success of employing neural networks for the purpose of detecting image tampering. Nevertheless, the utilization of reference-free steganalysis has become increasingly popular as a result of the challenges associated with obtaining an annotated dataset. This dataset is crucial for the classification process using neural networks, which aims to detect and identify instances of tampering. This paper introduces a robust approach to blind steganalysis, utilizing image spectral density and differential histogram correlative power spectral density. The proposed m

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5

Li, Jie, and Si Ming Tu. "Density-equicontinuity and Density-sensitivity." Acta Mathematica Sinica, English Series 37, no. 2 (2021): 345–61. http://dx.doi.org/10.1007/s10114-021-0211-2.

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6

Karhausen, L. R. "Incidence Density is no Density." Scandinavian Journal of Social Medicine 21, no. 1 (1993): 1–2. http://dx.doi.org/10.1177/140349489302100101.

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7

McWeeny, Roy. "Density functions and density functionals." Philosophical Magazine B 69, no. 5 (1994): 727–35. http://dx.doi.org/10.1080/01418639408240141.

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8

Ghosh, Malay, and Partha Sarker. "Density divergence and density convergence." Journal of Statistical Research 56, no. 1 (2023): 1–10. http://dx.doi.org/10.3329/jsr.v56i1.63943.

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Divergence between two distributions has been of statistical interest for more than a century, beginning with Karl Pearson with his famous chisquare test. The paper revisits some of the well-known density divergence measures, and studies their interrelationship. In addition, it is demonstrated how Scheffe’s pointwise density convergence implies convergence of distributions, based on different divergence measures.  Journal of Statistical Research 2022, Vol. 56, No. 1, pp. 1-10

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9

Norwood, O’Tar T. "Density." International Society of Hair Restoration Surgery 3, no. 3 (1993): 8.2–8. http://dx.doi.org/10.33589/3.3.0008.

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10

Jooris, Roland, Marco Antonio Campos, Stefaan van den Bremt, and John Irons. "Density." Sirena: poesia, arte y critica 2007, no. 1 (2007): 150–51. http://dx.doi.org/10.1353/sir.2007.0066.

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11

KWELA, ADAM, and PAOLO LEONETTI. "DENSITY-LIKE AND GENERALIZED DENSITY IDEALS." Journal of Symbolic Logic 87, no. 1 (2021): 228–51. http://dx.doi.org/10.1017/jsl.2021.95.

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AbstractWe show that there exist uncountably many (tall and nontall) pairwise nonisomorphic density-like ideals on $\omega $ which are not generalized density ideals. In addition, they are nonpathological. This answers a question posed by Borodulin-Nadzieja et al. in [this Journal, vol. 80 (2015), pp. 1268–1289]. Lastly, we provide sufficient conditions for a density-like ideal to be necessarily a generalized density ideal.

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12

Ciesielski. "Density and I-density continuous homeomorphisms." Real Analysis Exchange 18, no. 2 (1992): 367. http://dx.doi.org/10.2307/44152281.

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13

Bader, Richard F. W. "The density in density functional theory." Journal of Molecular Structure: THEOCHEM 943, no. 1-3 (2010): 2–18. http://dx.doi.org/10.1016/j.theochem.2009.10.022.

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14

崔, 蕴华. "Integer Density Distribution and Prime Density." Pure Mathematics 08, no. 03 (2018): 193–202. http://dx.doi.org/10.12677/pm.2018.83024.

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15

Slyper, Arnold H. "Low-Density Lipoprotein Density and Atherosclerosis." JAMA 272, no. 4 (1994): 305. http://dx.doi.org/10.1001/jama.1994.03520040067042.

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16

Soirat, A., M. Flocco, and L. Massa. "ApproximatelyN-representable density functional density matrices." International Journal of Quantum Chemistry 49, no. 3 (1994): 291–98. http://dx.doi.org/10.1002/qua.560490317.

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17

March, N. H. "Density functional theory via density matrices." International Journal of Quantum Chemistry 56, S29 (1995): 137–44. http://dx.doi.org/10.1002/qua.560560814.

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18

Ayers, Paul W. "Density bifunctional theory using the mass density and the charge density." Theoretical Chemistry Accounts 115, no. 4 (2005): 253–56. http://dx.doi.org/10.1007/s00214-005-0019-7.

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19

Kalmenov, Tynysbek, Aidana Les, and Ulzada Iskakova. "DETERMINATION OF DENSITY OF ELLIPTIC POTENTIAL." Eurasian Mathematical Journal 12, no. 4 (2021): 43–52. http://dx.doi.org/10.32523/2077-9879-2021-12-4-43-52.

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20

Melnyk, Anatoliy, and Volodymyr Saviak. "High Density Highperformance Computing Systems Cooling." Advances in Cyber-Physical Systems 3, no. 2 (2018): 112–24. http://dx.doi.org/10.23939/acps2018.02.112.

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21

Gaikwad, Anand, Shreya Shreya, and Shivani Patil. "Vehicle Density Based Traffic Control System." International Journal of Trend in Scientific Research and Development Volume-2, Issue-3 (2018): 511–14. http://dx.doi.org/10.31142/ijtsrd10938.

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22

Rahman, M. M., M. G. Mwakangwale, J. G. Hampton, and M. J. Hill. "Plant density affects soybean seed quality." Seed Science and Technology 33, no. 2 (2005): 521–25. http://dx.doi.org/10.15258/sst.2005.33.2.27.

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23

Tomášková, I., R. Pokorný, and V. Marek M. "Influence of stand density, thinning and elevated CO₂ on stem wood density of spruce." Journal of Forest Science 53, No. 9 (2008): 400–405. http://dx.doi.org/10.17221/2142-jfs.

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Stem wood density (SWD) of young Norway spruce trees (<i>Picea abie</I>s [L.] Karst.) growing at ambient (A variant, 350 &micro;mol(CO<sub>2</sub>)/mol) and elevated (E variant, A + 350 &micro;mol(CO<sub>2</sub>)/mol) atmospheric CO<sub>2</sub> concentration inside of the glass domes with adjustable windows was estimated after six and eight years of the cultivation. Stand density of two subvariants (s – sparse with ca 5,000 trees/ha and d – dense with ca 10,000 trees/ha) and thinning impact (intensity of 27%) on SWD and its variation alon

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24

Kim, Somin. "Mathematical Connection and Teaching Methods of Frequency Density." Korean School Mathematics Society 23, no. 4 (2020): 509–21. http://dx.doi.org/10.30807/ksms.2020.23.4.005.

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This study began with the discovery of the concept of frequency density in Singapore textbooks and in a set of subject contents of the UK's General Certificate of Secondary Education. To understand the mathematical meaning of frequency density, the mathematical connection of frequency density was considered in terms of mathematics internal connections and mathematics external connections. In addition, the teaching method of frequency density was introduced. In terms of mathematical internal connections, the connections among the probability density function, relative frequency density, and fre

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25

Saddam, Husain Dhobi, Yadav Kishori, and Karki Bhishma. "Variation of Energy Density and Mass Density of Photon with Wavelength." Indian Journal of Advanced Physics (IJAP) 1, no. 2 (2021): 1–5. https://doi.org/10.54105/ijap.B1003.101221.

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Variation of Energy Density and Mass Density of Photon with WavelengthThe mass density and energy density of visible photon is calculated as and , respectively. Moreover it is also observed that mass density and energy density of photon depend upon photons mass, wavelength, volume and energy. This is clear from figure 1, figure 2 and literatures. Therefore the mass density and energy density of photon varies with masses of photon, wavelength, volume, etc. 

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26

Lin, Jun-Lin. "Generalizing Local Density for Density-Based Clustering." Symmetry 13, no. 2 (2021): 185. http://dx.doi.org/10.3390/sym13020185.

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Discovering densely-populated regions in a dataset of data points is an essential task for density-based clustering. To do so, it is often necessary to calculate each data point’s local density in the dataset. Various definitions for the local density have been proposed in the literature. These definitions can be divided into two categories: Radius-based and k Nearest Neighbors-based. In this study, we find the commonality between these two types of definitions and propose a canonical form for the local density. With the canonical form, the pros and cons of the existing definitions can be bett

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27

Sakuramoto, Kazumi. "Density-Dependent Effect Occurs Regardless of Density." OALib 03, no. 11 (2016): 1–11. http://dx.doi.org/10.4236/oalib.1103112.

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28

Guo, Weixing. "Density Slopes in Variable Density Flow Modeling." Water 13, no. 22 (2021): 3292. http://dx.doi.org/10.3390/w13223292.

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Variable density flow (VDF) modeling is a valuable tool for assessing the potential impacts of global climate change and sea level rise on coastal aquifers. When using any of these modeling tools, a quantitative relationship is needed to compute the fluid density from salt concentration. A full understanding of the relationship between fluid density and solute concentration and the correct implementation of the equation of state are critical for variable density modeling. The works of Baxter and his colleagues in the early 20th century showed that fluid density could be linearly correlated to

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29

Zhang, Zhiyong, Qingsheng Zhu, Fan Zhu, et al. "Density decay graph-based density peak clustering." Knowledge-Based Systems 224 (July 2021): 107075. http://dx.doi.org/10.1016/j.knosys.2021.107075.

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30

Ciesielski. "Density-to-deep-I-density continuous functions." Real Analysis Exchange 17, no. 1 (1991): 171. http://dx.doi.org/10.2307/44152202.

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31

Mejía-Rodríguez, Daniel, and Aurélien de la Lande. "Multicomponent density functional theory with density fitting." Journal of Chemical Physics 150, no. 17 (2019): 174115. http://dx.doi.org/10.1063/1.5078596.

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32

Hou, Jian, and Aihua Zhang. "Enhancing Density Peak Clustering via Density Normalization." IEEE Transactions on Industrial Informatics 16, no. 4 (2020): 2477–85. http://dx.doi.org/10.1109/tii.2019.2929743.

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33

Gasparini, Mauro. "Bayesian density estimation via dirichlet density processes." Journal of Nonparametric Statistics 6, no. 4 (1996): 355–66. http://dx.doi.org/10.1080/10485259608832681.

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34

Nagy, Á., and E. Bene. "Total electron density from thes-electron density." Physical Review A 57, no. 5 (1998): 3458–61. http://dx.doi.org/10.1103/physreva.57.3458.

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35

Papachristodoulos, Ch, and N. Papanastassiou. "q-Density points and q-density topologies." Topology and its Applications 159, no. 7 (2012): 1799–805. http://dx.doi.org/10.1016/j.topol.2011.04.021.

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36

Koga, Toshikatsu, Kotomi Sano, and Tetsuya Morita. "Marginal electron density and density-difference functions." Theoretica Chimica Acta 81, no. 1-2 (1991): 21–30. http://dx.doi.org/10.1007/bf01113375.

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37

Kim, Inkang, and Pierre Pansu. "Density of Zariski density for surface groups." Duke Mathematical Journal 163, no. 9 (2014): 1737–94. http://dx.doi.org/10.1215/00127094-2690696.

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38

Capelle, K., and L. N. Oliveira. "Density-functional approach to spin-density waves." Europhysics Letters (EPL) 49, no. 3 (2000): 376–82. http://dx.doi.org/10.1209/epl/i2000-00159-8.

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39

Pan, Xiao-Yin, and Viraht Sahni. "Density and physical current density functional theory." International Journal of Quantum Chemistry 110, no. 15 (2010): 2833–43. http://dx.doi.org/10.1002/qua.22862.

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40

Sham, L. J. "Density functionals beyond the local density approximation." International Journal of Quantum Chemistry 28, S19 (2009): 491–95. http://dx.doi.org/10.1002/qua.560280845.

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41

Zhao, Yanan, Yufang Huang, Shuai Li, Xu Chu, and Youliang Ye. "Improving the growth, lodging and yield of different density-resistance maize by optimising planting density and nitrogen fertilisation." Plant, Soil and Environment 66, No. 9 (2020): 453–60. http://dx.doi.org/10.17221/178/2020-pse.

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Matching the planting density, fertilisation, and genotype is crucial to improve the maize yield. Here, two-year field trials, including 4 densities and 3 nitrogen (N) rates for 2 maize cultivars, were conducted to study the effects of planting density and N rate on maize growth, lodging, spike characters, and yield. Compared with 360 kg/ha, N application of 180 kg/ha decreased the plant, ear height, and stem circumference of WeiKe 702 (WK702), while increased the plant height and stem circumference, but decreased ear height of ZhongDan 909 (ZD909). Meanwhile, the N application of 180 kg/ha gr

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42

Gusti, Randa, Lestari Febrianti, and Kurniawan Dedy. "Production and decomposition of mangrove litter in Jang River Estuary, Bukit Bestari District, Tanjungpinang City." Samakia: Jurnal Ilmu Perikanan 11, no. 1 (2020): 34–43. https://doi.org/10.5281/zenodo.3940889.

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<em>The purpose of this study was to analyze the level of mangrove density, the level of production and decomposition of mangrove litter in Jang River Estuary, Bukit Bestari District, Tanjungpinang City. Determination of the research location using purposive sampling method based on development activities around the Muara Jang River mangrove area, including the area of community settlement development (station 1), landfill area for the construction of shop houses and housing (station 2) and the area without development activities (station 3). To measure the density of mangroves using a plot of

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43

Huang, Xiao-Zhou, and Kazumi Maki. "Density of states of quasi-one-dimensional charge-density and spin-density waves." Physical Review B 40, no. 4 (1989): 2575–77. http://dx.doi.org/10.1103/physrevb.40.2575.

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44

Motta, M., D. E. Galli, S. Moroni, and E. Vitali. "Imaginary time density-density correlations for two-dimensional electron gases at high density." Journal of Chemical Physics 143, no. 16 (2015): 164108. http://dx.doi.org/10.1063/1.4934666.

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45

Wanjari, Krushna, Kuldeep Kaur Bhatia, and Tushar Paithankar. "Envisioning Walkability in High Density Nagpur City." International Journal of Science and Research (IJSR) 10, no. 7 (2021): 266–71. https://doi.org/10.21275/sr21629173321.

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46

Mudryy, Ihor. "Evaluation of compressibility indicators for housing density." Theory and Building Practice 2023, no. 1 (2023): 15–20. http://dx.doi.org/10.23939/jtbp2023.01.015.

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Construction in an existing building usually increases the time required to organize and perform process operations. The paper analyzes the existing methods for evaluating compressibility for various regulatory documents and their relationship with the conditions of the construction site and surrounding buildings, shows the need to systematize approaches to compressibility evaluation and develop appropriate design recommendations. Based on theoretical research, the author concludes that there is a need to formulate the terms "compact construction conditions" or "conditions of dense housing"; t

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47

Sianipar, Yulika, and Muflihah Isnawati. "PENGARUH PEMBERIAN JUS LIDAH BUAYA (ALOE VERA) TERHADAP KADAR KOLESTEROL LOW DENSITY LIPOPROTEIN (LDL) DAN HIGH DENSITY LIPOPROTEIN (HDL)." Journal of Nutrition College 1, no. 1 (2012): 241–48. http://dx.doi.org/10.14710/jnc.v1i1.740.

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Latar Belakang: Dislipidemia merupakan salah satu faktor risiko terjadinya penyakit jantung koroner. Lidah buaya (Aloe vera) mengandung beberapa bahan aktif dapat menurunkan kolesterol dalam darah. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian jus lidah buaya dengan dosis bertingkat terhadap kolesterol LDL dan kolesterol HDL pada wanita dislipidemia. Metode : Penelitian ini merupakan true experiment dengan pre test - post test with control group design. Subjek penelitian adalah karyawati di Dinas Koperasi dan UKM Provinsi Jawa Tengah serta Balai Latihan Koperasi dan UKM Provinsi

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48

BHASKAR, SIDDHARTH. "THICKET DENSITY." Journal of Symbolic Logic 86, no. 1 (2021): 110–27. http://dx.doi.org/10.1017/jsl.2020.55.

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AbstractWe define a new type of “shatter function” for set systems that satisfies a Sauer–Shelah type dichotomy, but whose polynomial-growth case is governed by Shelah’s two-rank instead of VC dimension. We identify the least exponent bounding the rate of growth of the shatter function, the quantity analogous to VC density, with Shelah’s $\omega $ -rank.

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49

Beaumont, Chris, and B. W. Silverman. "Density Estimation." Journal of the Operational Research Society 37, no. 11 (1986): 1102. http://dx.doi.org/10.2307/2582699.

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50

Hernández Moreno, Silverio. "Housing Density." Revista INVI 30, no. 84 (2015): 199–201. http://dx.doi.org/10.4067/s0718-83582015000200008.

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