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Journal articles on the topic 'Zeffen'

Author: Grafiati

Published: 4 June 2021

Last updated: 29 July 2025

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1

Büyükyıldız, Mehmet, and Murat Türemiş. "Radiological Properties of Some Chemotherapy Drugs for Electron, Proton and Carbon Ion Interactions in the Energy Region 10 keV – 400 MeV." Celal Bayar Üniversitesi Fen Bilimleri Dergisi 19, no. 2 (2023): 143–49. https://doi.org/10.18466/cbayarfbe.1140327.

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Radiological properties of some chemotherapy drugs such as Doxorubicin, Vincristine, Teniposide, Azathioprine, Etoposide, Cyclophosphamide, Vinblastine, Bleomycin were investigated according to total electron interaction and some heavy charged particle interactions on behalf of effective atomic numbers (Zeff) and electron densities (Neff) for the ﬁrst time. Calculations were performed for total electron, proton and C ion interactions, commonly used in therapy, in the energy region 10 keV- 400 MeV. Variation of Zeffs and Neffs of given drugs was studied according to energy of electron or heavy

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2

Zhang, Ying, Xiaoxia He, Hans-Otto Baral, et al. "Orbilia laevimarginata sp. nov. and its asexual morph." Phytotaxa 203, no. 3 (2015): 245–53. https://doi.org/10.11646/phytotaxa.203.3.3.

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Zhang, Ying, He, Xiaoxia, Baral, Hans-Otto, Qiao, Min, Wei, Michael, Liu, Bin, Zhang, Ke-Qin, Yu, Zefen (2015): Orbilia laevimarginata sp. nov. and its asexual morph. Phytotaxa 203 (3): 245-253, DOI: 10.11646/phytotaxa.203.3.3, URL: http://dx.doi.org/10.11646/phytotaxa.203.3.3

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3

Shahraki, B. K., B. Mehrabi, and R. Dabiri. "Thermal behavior of Zefreh dolomite mine (Central Iran)." Journal of Mining and Metallurgy, Section B: Metallurgy 45, no. 1 (2009): 35–44. http://dx.doi.org/10.2298/jmmb0901035s.

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Dolomite has a large amounts of MgO and is an important raw materials for steel, iron and refractory industries. In this paper thermal behavior of Zefreh dolomite at various temperatures was studied by differential thermal analysis (DTA), Thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FT - IR) and powder X-ray diffraction (XRD) techniques. The DTA curve shows two endothermic peaks at 772 and 834?C. The first peak is associated with the formation of magnesia (MgO), calcite(CaCO3) and CO2. The second peak represents the decomposition of calcite with formation of CaO a

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4

Neveux, Richard, Etienne Burtin, Arnaud de Mattia, et al. "The completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: BAO and RSD measurements from the anisotropic power spectrum of the quasar sample between redshift 0.8 and 2.2." Monthly Notices of the Royal Astronomical Society 499, no. 1 (2020): 210–29. http://dx.doi.org/10.1093/mnras/staa2780.

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ABSTRACT We measure the clustering of quasars of the final data release (DR16) of eBOSS. The sample contains $343\, 708$ quasars between redshifts 0.8 ≤ z ≤ 2.2 over $4699\, \mathrm{deg}^2$. We calculate the Legendre multipoles (0,2,4) of the anisotropic power spectrum and perform a BAO and a Full-Shape (FS) analysis at the effective redshift zeff = 1.480. The errors include systematic errors that amount to 1/3 of the statistical error. The systematic errors comprise a modelling part studied using a blind N-body mock challenge and observational effects studied with approximate mocks to account

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Buyukyildiz, Mehmet, and Murat Kurudirek. "A study of the effective atomic number of SixPb0.7-x(Fe2O3)0.3 ternary alloys for photons." Nuclear Technology and Radiation Protection 31, no. 4 (2016): 327–34. http://dx.doi.org/10.2298/ntrp1604327b.

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The effective atomic number (Zeff) of SixPb0.7-x(Fe2O3)0.3 ternary alloys was obtained for photons. Rayleigh to Compton scattering ratio (R/C) has been determined to obtain the Zeff of SixPb0.7-x(Fe2O3)0.3 ternary alloys of varying Si and Pb (10 %-60 %) content for scattering of 59.54 keV g-rays at an angle of 130?. The theoretical R/C ratios of elements were plotted as a function of the atomic number and fitted to a polynomial equation. Experimental R/C values of alloys were then used to obtain Zeff using this fit equation. Also, Zeff values of these alloys were determined for the first time

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6

Song, Xikun, Zefeng Xiao, Cinzia Gravili, et al. "Worldwide revision of the genus Fraseroscyphus Boero and Bouillon, 1993 (Cnidaria: Hydrozoa): an integrative approach to establish new generic diagnoses." Zootaxa 4168, no. 1 (2016): 1–37. https://doi.org/10.11646/zootaxa.4168.1.1.

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Song, Xikun, Xiao, Zefeng, Gravili, Cinzia, Ruthensteiner, Bernhard, Mackenzie, Melanie, Wang, Shaoqing, Chen, Jinjing, Yu, Nan, Wang, Jianjun (2016): Worldwide revision of the genus Fraseroscyphus Boero and Bouillon, 1993 (Cnidaria: Hydrozoa): an integrative approach to establish new generic diagnoses. Zootaxa 4168 (1): 1-37, DOI: 10.11646/zootaxa.4168.1.1

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7

Gil-Marín, Héctor, Julián E. Bautista, Romain Paviot, et al. "The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: measurement of the BAO and growth rate of structure of the luminous red galaxy sample from the anisotropic power spectrum between redshifts 0.6 and 1.0." Monthly Notices of the Royal Astronomical Society 498, no. 2 (2020): 2492–531. http://dx.doi.org/10.1093/mnras/staa2455.

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ABSTRACT We analyse the clustering of the Sloan Digital Sky Survey IV extended Baryon Oscillation Spectroscopic Survey Data Release 16 luminous red galaxy sample (DR16 eBOSS LRG) in combination with the high redshift tail of the Sloan Digital Sky Survey III Baryon Oscillation Spectroscopic Survey Data Release 12 (DR12 BOSS CMASS). We measure the redshift space distortions (RSD) and also extract the longitudinal and transverse baryonic acoustic oscillation (BAO) scale from the anisotropic power spectrum signal inferred from 377 458 galaxies between redshifts 0.6 and 1.0, with the effective reds

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8

Travis, Irene L. "Information Architecture Practice: An Interview with Seth Gordon, ZEFER." Bulletin of the American Society for Information Science and Technology 26, no. 6 (2005): 13–15. http://dx.doi.org/10.1002/bult.177.

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9

Safaei, H., A. Taheri, and H. Vaziri-Mog. "Structural Analysis and Evolution of the Kashan (Qom-Zefreh) Fault, Central Iran." Journal of Applied Sciences 8, no. 8 (2008): 1426–34. http://dx.doi.org/10.3923/jas.2008.1426.1434.

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10

Hunt, David M. "A response to Stephen Zeff." British Accounting Review 21, no. 2 (1989): 177–81. http://dx.doi.org/10.1016/0890-8389(89)90195-9.

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11

Lee, Tom. "HENRY RAND HATFIELD AND ACCOUNTING BIOGRAPHY." Accounting Historians Journal 29, no. 2 (2002): 123–30. http://dx.doi.org/10.2308/0148-4184.29.2.123.

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The paper reasserts the importance of biographical research in accounting history by reference to Stephen Zeff's book on Henry Rand Hatfield. It illustrates that depth studies of individual actors offers compelling insights to the history of accounting theory, practices and institutions. Biography also has the capacity to reveal insights which have a bearing on modern day issues.

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12

Srinivasan, K., and E. James Jabaseelan Samuel. "Effective atomic number and photon buildup factor of bismuth doped tissue for photon and particles beam interaction." Polish Journal of Medical Physics and Engineering 28, no. 1 (2022): 37–51. http://dx.doi.org/10.2478/pjmpe-2022-0005.

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Abstract Introduction: The doping of high Z nanoparticles into the tumor tissue increases the therapeutic efficiency of radiotherapy called nanoparticle enhanced radiotherapy (NERT). In the present study, we are identifying the effective types of radiation and effective doping concentration of bismuth radiosensitizer for NERT application by analyzing effective atomic number (Zeff) and photon buildup factor (PBF) of bismuth (Bi) doped soft tissue for the photon, electron, proton, alpha particle, and carbon ion interactions. Material and methods: The direct method was used for the calculation of

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13

Cuceu, Andrei, Andreu Font-Ribera, Benjamin Joachimi та Seshadri Nadathur. "Cosmology beyond BAO from the 3D distribution of the Lyman-α forest". Monthly Notices of the Royal Astronomical Society 506, № 4 (2021): 5439–50. http://dx.doi.org/10.1093/mnras/stab1999.

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ABSTRACT We propose a new method for fitting the full-shape of the Lyman-α (Ly α) forest 3D correlation function in order to measure the Alcock-Paczynski (AP) effect. Our method preserves the robustness of baryon acoustic oscillations (BAO) analyses, while also providing extra cosmological information from a broader range of scales. We compute idealized forecasts for the Dark Energy Spectroscopic Instrument (DESI) using the Ly α autocorrelation and its cross-correlation with quasars, and show how this type of analysis improves cosmological constraints. The DESI Ly α BAO analysis is expected to

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14

Lim, Tou Ying, Husin Wagiran, Rosli Hussin, and Suhairul Hashim. "Mass Attenuation Coefficients and Effective Atomic Numbers of Strontium Borate Glass System in the Energy Range 0.01- 1.25 MeV." Advanced Materials Research 895 (February 2014): 315–18. http://dx.doi.org/10.4028/www.scientific.net/amr.895.315.

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Understanding the characterization of photon interaction is vital in nuclear science and technology field. The information obtained from mass attenuation coefficients (μ / ρ) and effective atomic numbers Zeff are compared with the reference value for good interpretation of radiation interaction with matter. However, the methods of Zeff calculation sometimes are confusing. In the present work, the total mass attenuation coefficients (μ / ρ) T for photon interaction of Dy2O3 doped strontium borate glasses have been calculated using database tabulated by Hubbell and Seltzer, at the energies of 0.

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15

Liao, Jessica. "Dr. Zefei Jiang: our journey beyond the stars and seas." Translational Breast Cancer Research 1 (April 2020): 9. http://dx.doi.org/10.21037/tbcr.2020.03.01.

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16

Miranti, Paul. "Book review: Stephen A Zeff (ed.) Insights from Accounting History: Selected Writings of Stephen Zeff." Accounting History 18, no. 1 (2013): 123–25. http://dx.doi.org/10.1177/1032373212463351.

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17

Eke, Canel, and A. Yildirim. "Investigation of Photon Attenuation Properties of CR-39 Lens." HNPS Proceedings 27 (April 17, 2020): 60. http://dx.doi.org/10.12681/hnps.2475.

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The purpose of this study is to investigate photon attenuation parameters of Colombia Resin-39 (CR-39) lens, which are linear attenuation coefficient (LAC), mass attenuation coefficient (MAC), half value layer (HVL), tenth value layer (TVL), mean free path (MFP), effective atomic number (Zeff) and effective electron density (Neff). MACs were determined theoretically and with simulation in the energy range from 0.01 to 105 MeV. Also, obtained MACs of CR-39 lens were compared with MACs of pure aluminum and lead. Theoretically obtained Zeff values were compared with Zeff results obtained by the c

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18

Mohammadi, Ebrahim. "The Oligo-Miocene Qom Formation (Iran): Re-examination of biostratigraphy and age interpretations in the Sanandaj–Sirjan and Central Iran basins (NE margin of the Tethyan Seaway)." Journal of Foraminiferal Research 54, no. 3 (2024): 202–16. http://dx.doi.org/10.61551/gsjfr.54.3.202.

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Abstract The depositional history of the Qom Formation, along the northeastern margin of the Tethyan Seaway, is recognized as essential to understanding the connection between the Eastern Tethys (the proto-Indian Ocean) and the Western Tethys regions (the proto-Mediterranean Sea). This paper re-examines the Qom Formation’s biostratigraphy and age interpretations of four stratigraphic sections (Abadeh, Zefreh, Chalheghareh, and Qom) and proposes revisions. These sections were previously studied within a project dealing with the palaeogeographic and palaeobiogeographic reconstruction of the Teth

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19

Valencia, R., G. Olayo, G. Cruz, et al. "Estimation of Zeff in Novillo Tokamak." Journal of Nuclear Materials 228, no. 2 (1996): 254–56. http://dx.doi.org/10.1016/s0022-3115(95)00243-x.

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20

Mohammadizad, Reza, and Ramin Arfania. "Advanced Investigation of Remote Sensing to Geological Mapping of Zefreh Region in Central Iran." Open Journal of Geology 07, no. 10 (2017): 1509–29. http://dx.doi.org/10.4236/ojg.2017.710101.

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21

Mehrabi, Behzad, Masud Abdellatif, and Fariborz Masoudi. "Evaluation of Zefreh Dolomite (Central Iran) for Production of Magnesium via the Pidgeon Process." Mineral Processing and Extractive Metallurgy Review 33, no. 5 (2012): 316–26. http://dx.doi.org/10.1080/08827508.2011.601478.

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22

Ma, Jiu Yang, Yun Xin Cheng, Ling Zhang, et al. "First observation of full radial profile of Z_eff using a high-performance visible spectrometer in EAST tokamak with full tungsten divertors." Journal of Instrumentation 20, no. 07 (2025): C07016. https://doi.org/10.1088/1748-0221/20/07/c07016.

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Abstract The effective ion charge, Zeff, is a critical parameter in quantifying the impurity content and collisionality, and studying neutron yield and impurity transport in magnetically confined fusion plasmas. In order to obtain a full radial Zeff profile in the EAST tokamak, a visible spectrometer system with endscope type optics has been newly developed. A vertical profile of visible bremsstrahlung continuum is observed at 597.8±1.0 nm with well-focused fiber images in a typical L-mode discharge. A local emissivity profile of the visible bremsstrahlung is analyzed using Abel inversion algo

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23

Elsafi, Mohamed, Mirvat Fawzi Dib, Hoda Ezzelddin Mustafa, et al. "Enhancement of Ceramics Based Red-Clay by Bulk and Nano Metal Oxides for Photon Shielding Features." Materials 14, no. 24 (2021): 7878. http://dx.doi.org/10.3390/ma14247878.

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We prepared red clays by introducing different percentages of PbO, Bi2O3, and CdO. In order to understand how the introduction of these oxides into red clay influences its attenuation ability, the mass attenuation coefficient of the clays was experimentally measured in a lab using an HPGe detector. The theoretical shielding capability of the material present was obtained using XCOM to verify the accuracy of the experimental results. We found that the experimental and theoretical values agree to a very high degree of precision. The effective atomic number (Zeff) of pure red clay, and red clay w

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24

Tamone, Amélie, Anand Raichoor, Cheng Zhao, et al. "The completed SDSS-IV extended baryon oscillation spectroscopic survey: growth rate of structure measurement from anisotropic clustering analysis in configuration space between redshift 0.6 and 1.1 for the emission-line galaxy sample." Monthly Notices of the Royal Astronomical Society 499, no. 4 (2020): 5527–46. http://dx.doi.org/10.1093/mnras/staa3050.

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ABSTRACT We present the anisotropic clustering of emission-line galaxies (ELGs) from the Sloan Digital Sky Survey IV (SDSS-IV) extended Baryon Oscillation Spectroscopic Survey (eBOSS) Data Release 16 (DR16). Our sample is composed of 173 736 ELGs covering an area of 1170 deg2 over the redshift range 0.6 ≤ z ≤ 1.1. We use the convolution Lagrangian perturbation theory in addition to the Gaussian streaming redshift space distortions to model the Legendre multipoles of the anisotropic correlation function. We show that the eBOSS ELG correlation function measurement is affected by the contribution

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Büyükyıldız, M., and M. Kurudirek. "Effective atomic number of Mn–Co–Fe2O3 ternary alloys using the Rayleigh to Compton scattering ratio." Canadian Journal of Physics 95, no. 4 (2017): 402–6. http://dx.doi.org/10.1139/cjp-2016-0756.

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The objective of this work is to determine effective atomic number (Zeff) of Fe2O3(0.2)–Mnx–Coy (x + y = 0.8) ternary alloys using scattering of gamma photons and to compare available methods used to calculate Zeff. For this purpose, we have developed a fitting equation using the ratio of Rayleigh (R) to Compton (C) scattering intensity, R/C for the calculation of effective atomic number of ternary alloy (i.e., Mn–Co–Fe2O3). R and C scattering intensities for the given materials have been measured using a mono-energetic beam of 59.54 keV gamma rays and a scattering angle of 130° (x = 4.36 Å−1)

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Sun, Yujin, Letian Cui, Yunpeng Sun, et al. "A/D-rings-seco limonoids from the fruits of Aglaia edulis and their bioactivities." Phytochemistry 195 (March 31, 2022): 1–9. https://doi.org/10.1016/j.phytochem.2021.113049.

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Sun, Yujin, Cui, Letian, Sun, Yunpeng, Li, Qiurong, Li, Yongyi, Wang, Zefan, Xu, Wenjun, Kong, Lingyi, Luo, Jun (2022): A/D-rings-seco limonoids from the fruits of Aglaia edulis and their bioactivities. Phytochemistry (113049) 195: 1-9, DOI: 10.1016/j.phytochem.2021.113049, URL: http://dx.doi.org/10.1016/j.phytochem.2021.113049

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27

Dyckman, Thomas R., and Wil C. Uecker. "A Tribute to Professor Stephen A. Zeff." Accounting Education 20, no. 1 (2011): 81–95. http://dx.doi.org/10.1080/09639284.2010.537831.

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28

Pigarov, A. Yu. "Radiative detached divertor with acceptable separatrix Zeff." Physics of Plasmas 24, no. 10 (2017): 102521. http://dx.doi.org/10.1063/1.4986516.

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29

Yousefi, Mastoureh, Seyed Hassan Tabatabaei, Reyhaneh Rikhtehgaran, Amin Beiranvand Pour, and Biswajeet Pradhan. "Application of Dirichlet Process and Support Vector Machine Techniques for Mapping Alteration Zones Associated with Porphyry Copper Deposit Using ASTER Remote Sensing Imagery." Minerals 11, no. 11 (2021): 1235. http://dx.doi.org/10.3390/min11111235.

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The application of machine learning (ML) algorithms for processing remote sensing data is momentous, particularly for mapping hydrothermal alteration zones associated with porphyry copper deposits. The unsupervised Dirichlet Process (DP) and the supervised Support Vector Machine (SVM) techniques can be executed for mapping hydrothermal alteration zones associated with porphyry copper deposits. The main objective of this investigation is to practice an algorithm that can accurately model the best training data as input for supervised methods such as SVM. For this purpose, the Zefreh porphyry co

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Pedramara, Amir, Kamil Zágoršek, Maria Aleksanda Bitner, Mehdi Yazdi, Ali Bahrami, and Zahra Maleki. "Bryozoans and brachiopods from the Lower Miocene deposits of the Qom Formation in North-East Isfahan (Central Iran)." Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 294, no. 2 (2019): 229–50. http://dx.doi.org/10.1127/njgpa/2019/0852.

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A study of bryozoans and brachiopods from the Varton, Zefreh and Kuh-e-Charkheh sections from the Esfahan-Sirjan fore-arc basin of the Qom Formation of Central Iran has yielded 30 bryozoan taxa, including one new species Gigantopora vartonensis, and six brachiopod species. Both assemblages co-occur with large oyster shells with some of the ventral valves of brachiopods directly attached to their shells. The paleoenvironment is interpreted as an oyster bank ('oyster reef') in shallow, tropical-subtropical marine waters, producing cryptic habitats for other groups of organisms.

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31

Wang, Yuting, Gong-Bo Zhao, Cheng Zhao, et al. "The clustering of the SDSS-IV extended baryon oscillation spectroscopic survey DR16 luminous red galaxy and emission-line galaxy samples: cosmic distance and structure growth measurements using multiple tracers in configuration space." Monthly Notices of the Royal Astronomical Society 498, no. 3 (2020): 3470–83. http://dx.doi.org/10.1093/mnras/staa2593.

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ABSTRACT We perform a multitracer analysis using the complete Sloan Digital Sky Survey IV (SDSS-IV) extended Baryon Oscillation Spectroscopic Survey (eBOSS) DR16 luminous red galaxy (LRG) and the DR16 emission-line galaxy (ELG) samples in the configuration space, and successfully detect a cross-correlation between the two samples, and find the growth rate to be fσ8=0.342 ± 0.085 (∼25 per cent accuracy) from the cross-sample alone. We perform a joint measurement of the baryonic acoustic oscillation (BAO) and redshift space distortion (RSD) parameters at a single effective redshift of zeff = 0.7

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32

Mikhailov, Igor, Anton Mikhailov, Svetlana Borisova, Volodymyr Nehoduiko, and Natalia Seliukova. "Comprehensive X-ray analysis of foreign bodies in the human tissues." Functional Materials 32, no. 2 (2025): 292–96. https://doi.org/10.15407/fm32.02.292.

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For the first time, a complex of X-ray methods: XRD, XRF absorption analysis and the Compton scattering method вЂ“ was used to study foreign bodies in human tissues. The surface of the fragments on opposite sides was visually significantly different: on one side it was smooth, on the other вЂ“ rough. At the same time, no differences in the structure of the crystal lattice and the composition of the main impurities were revealed by the XRD and XRF methods. Both methods certified the material of the objects as aluminum alloy AMC. The Compton scattering method showed a change in the effective ato

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33

Mangold, Katharina. "ZEFFF 2022: “Zivilgesellschaftliches Engagement und Freiwilligendienste im Fokus der Forschung” – Konferenz und Vernetzungstreffen." Voluntaris 11, no. 1 (2023): 173–77. http://dx.doi.org/10.5771/2196-3886-2023-1-173.

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Callahan, K. J., C. Chrystal, B. A. Grierson, S. R. Haskey, W. W. Heidbrink, and J. L. Herfindal. "Integrated Zeff analysis on the DIII-D Tokamak." Journal of Instrumentation 14, no. 10 (2019): C10002. http://dx.doi.org/10.1088/1748-0221/14/10/c10002.

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35

Manjunatha, H. C., and B. Rudraswamy. "Computation of CT-number and Zeff in Teeth." Health Physics 100 (May 2011): S92—S99. http://dx.doi.org/10.1097/hp.0b013e3181f508ac.

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36

Lee, Jong-ha, Seung Hun Lee, Soohyun Son, Won Ha Ko, Dong Cheol Seo, and Ichihiro Yamada. "Zeff profile measurement system using a Thomson polychromator." Fusion Engineering and Design 123 (November 2017): 838–42. http://dx.doi.org/10.1016/j.fusengdes.2017.03.165.

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37

DEWING, IAN P., and PETER O. RUSSELL. "ACCOUNTING EDUCATION AND RESEARCH: ZEFF»S WARNINGS RECONSIDERED." British Accounting Review 30, no. 3 (1998): 291–312. http://dx.doi.org/10.1006/bare.1998.0072.

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38

Tech, Lohane, and Luiz F. Pires. "Insights into the Effect of Aggregate Sizes on the Soil Radiation Interaction Properties Based on X-ray Fluorescence." International Journal of Environmental Research and Public Health 19, no. 22 (2022): 14635. http://dx.doi.org/10.3390/ijerph192214635.

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Soils subjected to disaggregation can break into aggregates of different sizes composed of sand, clay, and silt particles. Each aggregate contains different oxides, which can vary according to the aggregate size and influence its properties, such as the radiation interaction parameters. These parameters are relevant in the evaluation of radiation shielding and soil physical properties. Thirteen tropical/subtropical soils of contrasting textures (clayey and loamy/sandy) with two aggregate sizes (2–1 mm and <45 μm) were studied. The radiation parameters analyzed were the atomic (σA), electron

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Akman, F., B. Enez, S. Agüloğlu Fincan, F. Akdemir, and I. H. Geçibesler. "Investigation of some radiation interaction parameters for bacteria isolated from the soil in the low energy region." Canadian Journal of Physics 98, no. 3 (2020): 251–59. http://dx.doi.org/10.1139/cjp-2018-0467.

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The purpose of this work, investigation of radiation attenuation characteristics, such as mass attenuation coefficient (μ/ρ), molar extinction coefficient (ε), effective atomic number (Zeff), and electron density (NE), of isolated bacteria from soil samples taken from Diyarbakır in Turkey. The experiments were performed using a narrow beam geometry with the help of the a high-resolution Si(Li) detector and three different radioactive sources at 15 different photon energies. The ε, Zeff, and NE values for some bacteria isolated from soil, such as Bacillus megaterium, Bacillus simplex, Bacillus

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40

Ma, Xia, Ming Xu, Xiao-Juan Tian, Yong-Li Liu, Xin-Ri Zhang, and Ying Qiao. "A Retrospectively Study: Diagnosis of Pathological Types of Malignant Lung Tumors by Dual-layer Detector Spectral Computed Tomography." Technology in Cancer Research & Treatment 21 (January 2022): 153303382210744. http://dx.doi.org/10.1177/15330338221074498.

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Object: By retrospectively analyzing the energy spectrum of squamous cell carcinoma, adenocarcinoma, small cell lung cancer (SCLC), and pulmonary metastases that underwent dual-layer detector spectral computed tomography (DLCT) 3-phase scan of the chest, we explored the value of a multiparameter energy spectrum in the assessment of pathological types of lung tumors. Methods: Cases of squamous cell carcinoma ( n = 20), adenocarcinoma ( n = 24), SCLC ( n = 26), and metastases ( n = 14) were collected. Then the largest cross-sectional area (LCA) of the lesion, computed tomography (CT) values in t

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Manerikar, Ankit, Fangda Li, and Avinash C. Kak. "A Spectrum-Adaptive Decomposition Method for Effective Atomic Number Estimation Using Dual Energy CT." Electronic Imaging 2020, no. 14 (2020): 293–1. http://dx.doi.org/10.2352/issn.2470-1173.2020.14.coimg-293.

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Dual Energy Computed Tomography (DECT) is expected to become a significant tool for voxel-based detection of hazardous materials in airport baggage screening. The traditional approach to DECT imaging involves collecting the projection data using two different X-ray spectra and then decomposing the data thus collected into line integrals of two independent characterizations of the material properties. Typically, one of these characterizations involves the effective atomic number (Zeff) of the materials. However, with the X-ray spectral energies typically used for DECT imaging, the current best-

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Chanthima, Natthakridta, Jakrapong Kaewkhao, Sunisa Sarachai, Narong Sangwaranatee, and Nisakorn W. Sangwaranatee. "Total and Partial Photon Interactions of BaSO₄-Na₂O-B₂O₃-SiO₂." Materials Science Forum 872 (September 2016): 138–44. http://dx.doi.org/10.4028/www.scientific.net/msf.872.138.

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The radiation parameters of barite sodium silicoborate glass (BaSO4:Na2O:SiO2:B2O3) with different concentration of barite (BaSO4) were studied. The mass attenuation coefficient (μ/ρ), effective atomic number (Zeff) effective electron densities (Ne,eff) and half value layer (HVL) have been calculated by theoretical approach using WinXCom program in the energy range of 1 keV to 100 GeV. The results of these parameters are show graphically for total and partial photon interaction. It was found that the Zeff show discontinuous jumps related to absorption edges and dominance photoelectric effect a

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Zhu, Zhong Yuan, and M. Cecilia Yappert. "Determination of Effective Depth and Equivalent Pathlength for a Single-Fiber Fluorometric Sensor." Applied Spectroscopy 46, no. 6 (1992): 912–18. http://dx.doi.org/10.1366/0003702924124411.

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The relationship between sample depth and the corresponding fluorescence signal excited and collected with a single-fiber fluorometric optical sensor has been theoretically derived. The effective depth, zeff, is defined as the sample depth from which 90% of the total fluorescence signal originates. This parameter can be theoretically predicted as a function of the fiber radius, r0, the acceptance angle, α, and the sample absorbance. For solutions of negligible absorbance, the effective depth is zeff = 9 r0 tan−1α. The theoretical expressions have been experimentally tested with the use of 100-

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Ljubenov, Vladan, та Rodoljub Simovic. "Photon albedo coefficients as functions of μ/Zeff parameter". Nuclear Technology and Radiation Protection 28, № 3 (2013): 247–53. http://dx.doi.org/10.2298/ntrp1303247l.

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Burdakov, A., I. Ivanov, V. Piffl, et al. "Transverse Losses and Zeff Measurements at GOL-3 Facility." Fusion Science and Technology 51, no. 2T (2007): 358–60. http://dx.doi.org/10.13182/fst07-a1401.

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Yoneyama, Akio, Kazuyuki Hyodo, and Tohoru Takeda. "Feasibility test of Zeff imaging using x-ray interferometry." Applied Physics Letters 103, no. 20 (2013): 204108. http://dx.doi.org/10.1063/1.4831773.

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Zhou, Hangyu, Shigeru Morita, Motoshi Goto, Chunfeng Dong, Jun Yanagibayashi, and Masahiro Hasuo. "Zeff measurement using extreme ultraviolet bremsstrahlung emission in LHD." Review of Scientific Instruments 81, no. 10 (2010): 10D706. http://dx.doi.org/10.1063/1.3475694.

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Previts, Gary John. "Insights from accounting history: Selected writings of Stephen Zeff." British Accounting Review 44, no. 2 (2012): 127–28. http://dx.doi.org/10.1016/j.bar.2012.03.002.

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Wang, Tong, Yong Yue, Zheng Fan, et al. "Spectral Dual-Layer Computed Tomography Can Predict the Invasiveness of Ground-Glass Nodules: A Diagnostic Model Combined with Thymidine Kinase-1." Journal of Clinical Medicine 12, no. 3 (2023): 1107. http://dx.doi.org/10.3390/jcm12031107.

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Objectives: Few studies have explored the use of spectral dual-layer detector-based computed tomography (SDCT) parameters, thymidine kinase-1 (TK1), and tumor abnormal protein (TAP) for the detection of ground-glass nodules (GGNs). Therefore, we aimed to evaluate the quantitative and qualitative parameters generated from SDCT for predicting the pathological subtypes of GGN-featured lung adenocarcinoma combined with TK1 and TAP. Material and Methods: Between July 2021 and September 2022, 238 patients with GGNs were retrospectively enrolled in this study. SDCT and tests for TK1 and TAP were perf

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Witkiewicz-Łukaszek, Sandra, Bogna Sobiech, Janusz Winiecki, and Yuriy Zorenko. "Real-Time Dose Measurement in Brachytherapy Using Scintillation Detectors Based on Ce3+-Doped Garnet Crystals." Crystals 15, no. 8 (2025): 669. https://doi.org/10.3390/cryst15080669.

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Conventional detectors based on ionization chambers, semiconductors, or thermoluminescent materials generally cannot be used to verify the in vivo dose delivered during brachytherapy treatments with γ-ray sources. However, certain adaptations and alternative methods, such as the use of miniaturized detectors or other specialized techniques, have been explored to address this limitation. One approach to solving this problem involves the use of dosimetric materials based on efficient scintillation crystals, which can be placed in the patient’s body using a long optical fiber inserted intra-caver

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