Gotowe bibliografie tematyczne / ΕNd

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Gotowa bibliografia na temat „ΕNd”

Autor: Grafiati

Data publikacji: 14 grudnia 2024

Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "ΕNd"

Kerr, Andrew, George A. Jenner, and Brian J. Fryer. "Sm–Nd isotopic geochemistry of Precambrian to Paleozoic granitoid suites and the deep-crustal structure of the southeast margin of the Newfoundland Appalachians." Canadian Journal of Earth Sciences 32, no. 2 (1995): 224–45. http://dx.doi.org/10.1139/e95-019.

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In the Eastern Central Mobile Belt of the Newfoundland Appalachians, late Precambrian basement inliers have εNd from −3 to +2, but Cambro-Ordovician metasedimentary rocks have initial εNd below −7. This region is inferred to have an "inverted" crustal residence structure, which influenced subsequent Appalachian-cycle magmatism. Ordovician and Silurian granitoid suites have εNd of −8 to −2, bracketing both basement and cover, but peraluminous, "S-type" granites have the lowest εNd. Devonian granites have initial εNd values from −5 to +1, and low εNd is associated with peraluminous character. Th

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Arsouze, T., J. C. Dutay, M. Kageyama, et al. "A modeling sensitivity study of the influence of the Atlantic meridional overturning circulation on neodymium isotopic composition at the Last Glacial Maximum." Climate of the Past 4, no. 3 (2008): 191–203. http://dx.doi.org/10.5194/cp-4-191-2008.

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Abstract. Using a simple parameterisation that resolves the first order global Nd isotopic composition (hereafter expressed as εNd in an Ocean Global Circulation Model, we have tested the impact of different circulation scenarios on the εNd in the Atlantic for the Last Glacial Maximum (LGM), relative to a modern control run. Three different LGM freshwater forcing experiments are performed to test for variability in the εNd oceanic distribution as a function of ocean circulation. Highly distinct representations of the ocean circulation are generated in the three simulations, which drive signifi

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Mikhailik, P. E., I. A. Vishnevskaya, E. V. Mikhailik, et al. "Genesis and Nd Isotope Composition of Ferromanganese Deposits of the Sea of Okhotsk and the Kuril Island Arc." Russian Geology and Geophysics 62, no. 9 (2021): 1074–87. http://dx.doi.org/10.2113/rgg20194142.

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Abstract —The Nd isotope composition of ferromanganese deposits (FMD) from the central part of the Sea of Okhotsk and the Kuril island arc has been studied. The results showed that diagenetic samples from the Deryugin Basin have a heterogeneous Nd isotope composition. The positive εNd values here might be both due to the input of a terrigenous impurity and due to diffuse endogenetic element supply. The FMD samples from the Sonne underwater ridge show a εNd value specific to seawater (–3.2). The εNd value of hydrogenetic FMD from Volcano 7.14 is –3.4, which corresponds to the εNd value of the P

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Bock, B., S. M. McLennan, and G. N. Hanson. "The Taconian orogeny in southern New England: Nd-isotope evidence against addition of juvenile components." Canadian Journal of Earth Sciences 33, no. 12 (1996): 1612–27. http://dx.doi.org/10.1139/e96-122.

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Nd-isotope data for pre-Taconian (meta)sedimentary and igneous rocks, syn-Taconian (meta)sedimentary rocks, and Late Ordovician–Silurian plutonic rocks indicate that the Ordovician Taconian orogeny did not add significant amounts of juvenile crust to the Laurentian margin in southern New England. Nd-isotope compositions of Grenvillian crust and Late Proterozoic to Early Cambrian rift sediments range from εNd of −3.1 to −6.6 at 450 Ma. Sedimentary rocks deposited during the Cambrian and the early Middle Ordovician, which represent the drift stage of Laurentia, and earliest Taconian sedimentary

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Khim, Boo-Keun, Keiji Horikawa, Yoshihiro Asahara, Ji-Eun Kim, and Minoru Ikehara. "Detrital Sr–Nd isotopes, sediment provenances and depositional processes in the Laxmi Basin of the Arabian Sea during the last 800 ka." Geological Magazine 157, no. 6 (2018): 895–907. http://dx.doi.org/10.1017/s0016756818000596.

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Abstract87Sr/86Sr ratios and εNd values of detrital particles at International Ocean Discovery Program (IODP) Site U1456 in the Laxmi Basin of the Arabian Sea were measured to trace changes in sediment provenance over glacial–interglacial cycles. Based on the correlation of planktonic foraminiferal (Globigerinoides ruber) δ18O fluctuations with the LR04 stack of benthic foraminifera δ18O values, combined with shipboard biostratigraphic and palaeomagnetic data, the studied interval spans ∼1.2 Ma. Over the past 800 ka, 87Sr/86Sr values ranged from 0.711 to 0.726 while εNd values ranged between −

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Dubois-Dauphin, Quentin, Paolo Montagna, Giuseppe Siani, et al. "Hydrological variations of the intermediate water masses of the western Mediterranean Sea during the past 20 ka inferred from neodymium isotopic composition in foraminifera and cold-water corals." Climate of the Past 13, no. 1 (2017): 17–37. http://dx.doi.org/10.5194/cp-13-17-2017.

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Abstract. We present the neodymium isotopic composition (εNd) of mixed planktonic foraminifera species from a sediment core collected at 622 m water depth in the Balearic Sea, as well as εNd of scleractinian cold-water corals (CWC; Madrepora oculata, Lophelia pertusa) retrieved between 280 and 442 m water depth in the Alboran Sea and at 414 m depth in the southern Sardinian continental margin. The aim is to constrain hydrological variations at intermediate depths in the western Mediterranean Sea during the last 20 kyr. Planktonic (Globigerina bulloides) and benthic (Cibicidoides pachyderma) fo

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Samson, Scott D., Sandra M. Barr, and Chris E. White. "Nd isotopic characteristics of terranes within the Avalon Zone, southern New Brunswick." Canadian Journal of Earth Sciences 37, no. 7 (2000): 1039–52. http://dx.doi.org/10.1139/e00-015.

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Nd isotopic data are presented for rock units in four terranes within the traditional Avalon Zone of southern New Brunswick. Initial εNd values for igneous rocks within the Caledonia terrane range from -1.6 to +4.6, whereas values for sedimentary rocks range from -8.4 to +3.6. A granite within the Kingston terrane has εNd(438 Ma) = +4.0. Nd isotopic compositions for the Kingston and Caledonia terranes are similar to those of the Mira terrane in Cape Breton Island, the Antigonish Highlands of Nova Scotia, and plutonic rocks of eastern Newfoundland. Each of these regions may be a dismembered par

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Garzione, Carmala N., P. Jonathan Patchett, Gerald M. Ross, and JoAnne Nelson. "Provenance of Paleozoic sedimentary rocks in the Canadian Cordilleran miogeocline: a Nd isotopic study." Canadian Journal of Earth Sciences 34, no. 12 (1997): 1603–18. http://dx.doi.org/10.1139/e17-129.

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Nd isotopes and trace elements in sedimentary rocks of the Yukon, the Northwest Territories, and northern British Columbia are used to examine the source of sediments in the Canadian Cordilleran miogeocline. Previous Nd isotope studies in southern Alberta demonstrated that strata of Neoproterozoic to Late Ordovician age were derived from Archean and Proterozoic Canadian Shield sources, whereas by the Late Devonian, a shift of 6 εNd units to younger crustal sources (εNd (T) = −6 to −9) had occurred. In this study, we found that the shift to younger crustal Nd isotopic signatures in the Yukon an

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Chauvel, C., N. T. Arndt, S. Kielinzcuk, and A. Thom. "Formation of Canadian 1.9 Ga old continental crust. I: Nd isotopic data." Canadian Journal of Earth Sciences 24, no. 3 (1987): 396–406. http://dx.doi.org/10.1139/e87-042.

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A Nd isotopic study was carried out on 1.9−1.8 Ga rocks from two parts of the Trans-Hudson Orogen in northern Canada. The first part is the Reindeer Lake Zone in the Churchill Province in Saskatchewan, where a variety of volcanic, granitoid, and sedimentary rocks are preserved in several lithotectonic belts that border a reworked Archean craton to the northwest. The second area comprises the Ottawa and Belcher islands, in Hudson Bay, and the Fox River volcanics, in Manitoba. These form part of the Circum-Superior Belt, a band of basaltic volcanics and sedimentary rocks that overlies the Archea

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Fryer, Brian J., John D. Greenough, and J. Victor Owen. "Iapetus Ocean floor stuffed into a suture zone: xenolith Nd isotopic evidence for Dunnage-equivalent basement in central Newfoundland." Canadian Journal of Earth Sciences 34, no. 10 (1997): 1392–400. http://dx.doi.org/10.1139/e17-111.

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Granulite-facies xenoliths from Late Jurassic alkaline lamprophyres may represent basement to the Dunnage Zone in north-central Newfoundland (Notre Dame Bay area). At 143 Ma the xenoliths had positive εNd values between 0.9 and 4.7. They give Nd depleted mantle model ages around 700 Ma and have trace element and major element compositions reminiscent of oceanic arc-related intermediate volcanic and sedimentary rocks. Their positive εNd values and associated "young" Nd model ages argue against their representing Grenvillian crust. Similarly, Gander Zone basement to the east produced granitic ro

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Rozprawy doktorskie na temat "ΕNd"

Gao, Guohui. "Variations in the North African climate and in the hydrology of intermediate- and deep-water masses of the Mediterranean Sea during the late Quaternary : sedimentological, mineralogical and geochemical investigations of marine sediments." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASJ025.

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La circulation thermohaline méditerranéenne influence l'AMOC et les dépôts de sapropels. Cette étude examine les méthodes d'extraction des compositions isotopiques de Nd de l'eau de mer passée et la variabilité de la formation des eaux profondes pendant le dernier cycle climatique. Nos résultats montrent que l'εNd des foraminifères n'est pas affecté par la diagenèse des téphras. L'extraction séquentielle avec hydroxylamine hydrochloride donne des valeurs d'εNd cohérentes avec celles des foraminifères. L'εNd des eaux profondes de la mer Adriatique est resté constant durant les 16 derniers ka. L

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Lee, Yi-Lin, та 李宜霖. "The Comparison of Inclined Planar Dual-Jet Interaction by k-εand k-ω Tubulent Models". Thesis, 2001. http://ndltd.ncl.edu.tw/handle/15132579281645816568.

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碩士<br>中原大學<br>土木工程研究所<br>89<br>The numerical simulation results of the flows of two parallel/inclined planar turbulent jets are presented in this paper. This study adopts the control volume method for simulating the mean quantities of the two-dimensional averaged Navier-Stokes equations associated with and turbulent models. The computational results of these two turbulent models were validated with the experimental investigations and compared each other for the related physical quantities. The comparison includes mean flow direction, turbulent intensities and Reynolds stress; an

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Części książek na temat "ΕNd"

Jin, Lu, Yuequan Yang, Chunbo Ni, Yifei Kong, and Zhiqiang Cao. "Study on Online εNN Q-Learning for Multi-Robot System Based on Community Perception Network." In Lecture Notes in Electrical Engineering. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-38524-7_96.

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Gottlieb, Eric S., Elizabeth L. Miller, John W. Valley, Christopher M. Fisher, Jeffrey D. Vervoort, and Kouki Kitajima. "Zircon petrochronology of Cretaceous Cordilleran interior granites of the Snake Range and Kern Mountains, Nevada, USA." In Tectonic Evolution of the Sevier-Laramide Hinterland, Thrust Belt, and Foreland, and Postorogenic Slab Rollback (180–20 Ma). Geological Society of America, 2022. http://dx.doi.org/10.1130/2022.2555(02).

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ABSTRACT We addressed fundamental questions about the lithology, age, structure, and thermal evolution of the deep crust of the retroarc hinterland of the North American Cordilleran orogen through systematic investigation of zircons from Cretaceous plutons in the Snake Range and Kern Mountains of east-central Nevada. Geochronological (U-Pb) and geochemical (trace element, O and Hf isotopes) characterization of pre- and synmagmatic growth domains of zircons, coupled with traditional petrologic methods (petrography, field relationships, and whole-rock major-element, trace-element, and Sr-Nd and

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Maslov, A. V., N. V. Politova, N. V. Kozina, et al. "Rare and trace elements in modern bottom sediments of the Barents sea. Nd, Pb and Sr isotopic composition." In THE BARENTS SEA SYSTEM. Shirshov Institute of Oceanology Publishing House, 2021. http://dx.doi.org/10.29006/978-5-6045110-0-8/(32).

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The article presents a brief lithological description of the modern bottom sediments of the Barents Sea, selected in the 67th voyage of the R/V “Akademik Mstislav Keldysh” at the polygons: 1) “Pechora Sea”; 2) “Western slope of Kaninskoe shoal”; 3) “Central Barents Sea (Shtokman area)”; 4) “Russkaya Gavan’ fjord”; 5) “Medvezhinsky Trench”; 6) in the area to the south of Spitsbergen; 7) “Kola meridian”; 8) “Spitsbergen – Franz Josef Land archipelago”; 9) “Cambridge Strait”. The distribution of Cr, Ni, Cu, Zn, Cd, and Pb in samples of bottom sediments (pelitic, aleurite-pelitic and sandy-aleurit

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Vogel, Thomas A., F. William Cambray, Leeann Feher, and Kurt N. Constenius. "Petrochemistry and Emplacement History of the Wasatch Igneous Belt." In Geology and Ore Deposits of the Oquirrh and Wasatch Mountains, Utah. Society of Economic Geologists, 1998. http://dx.doi.org/10.5382/gb.29.03.

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Abstract Exposures in and around the mid-Tertiary Wasatch Igneous Belt (WIB) provide an opportunity to investigate the mechanisms associated with the emplacement of the stocks. They are associated in time and place with northeast-trending dikes, indicating that the area was undergoing extension at the time. Studies elsewhere show that at best, distortion of the country rock around igneous intrusions can only account for 40 percent of the space required. We propose a model in which part of the space is made available where faults associated with the extension change strike (releasing bends) or

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Dostal, Jaroslav, Pierre Jutras, and Reginald A. Wilson. "Geochemical and Nd isotopic constraints on the origin of uppermost Silurian rhyolitic rocks in the northern Appalachians (northern New Brunswick): Tectonic implications." In New Developments in the Appalachian-Caledonian- Variscan Orogen. Geological Society of America, 2022. http://dx.doi.org/10.1130/2021.2554(06).

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ABSTRACT Voluminous bimodal volcanic rocks of the Silurian (ca. 422–420 Ma) Dickie Cove Group in the Ganderia domain of northern New Brunswick, Canada, are subaerial units that were deposited in an extensional setting, with the mafic types corresponding to continental tholeiites. Felsic rocks are rhyolites with calc-alkaline affinities. They exhibit geochemical characteristics that are typical of A2-type felsic magmas, such as enrichments in the incompatible elements Zr, Nb, and Y, as well as high FeO*/(FeO* + MgO) and Ga/Al ratios. Their εNd(t) values are positive (+0.7 to +3.4) but lower tha

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Chapman, Jonathan, and Frederick Rowbottom. "The theory of a topos In S." In Relative Category Theory and Geometric Morphisms. Oxford University PressOxford, 1992. http://dx.doi.org/10.1093/oso/9780198534341.003.0010.

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Abstract In this chapter, we employ the canonical set theory of a topos ε in S, to give a set-theoretic description of the structure of εand to construct exponentials and finite colimits. If εhas copowers then (set-indexed) disjunctions, V, are available in the language.

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"The Space εn." In Metric Spaces of Fuzzy Sets: Theory and Applications. WORLD SCIENTIFIC, 1994. http://dx.doi.org/10.1142/9789814447010_0006.

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"Metrics on εn." In Metric Spaces of Fuzzy Sets: Theory and Applications. WORLD SCIENTIFIC, 1994. http://dx.doi.org/10.1142/9789814447010_0007.

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Streszczenia konferencji na temat "ΕNd"

Kalashnikov, A. O., P. A. Serov, J. A. Mikhailova, and V. N. Yakovenchuk. "Neodymium isotopes do fractionate in magmatic environments." In Project KO5125 ARLIN Arctic Layered Intrusions as a Source of Critical Metals for Green Economy European Neighbourhood Instrument Cross-Border Cooperation Programme Kolarctic 2014-2020. GI KSC RAS, 2022. http://dx.doi.org/10.31241/arlin.2022.006.

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We have revealed that εNd(T) changes from positive to negative near magmatic contacts, in the gabbro-norite Nyud and the peralkaline Lovozero massifs (NW Russia). We suppose that these reversions are caused by fractionation of neodymium isotopes by thermal diffusion near the contacts.

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Rakhimov, I. R., and E. L. Kunakkuzin. "PETROLOGICAL AND GEOCHEMICAL FEATURES OF THE TASHLY-TAU ORE-BEARING MASSIF (KHUDOLAZ COMPLEX, SOUTH URALS)." In Проблемы минералогии, петрографии и металлогении. Научные чтения памяти П. Н. Чирвинского. Пермский государственный национальный исследовательский университет, 2021. http://dx.doi.org/10.17072/chirvinsky.2021.197.

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Petrographic and petrological-geochemical studies of the Tashly-Tau ore-bearing massif rocks of the Khudolaz complex have been carried out. It was revealed that the rocks are rich in hornblende and can be called olivine plagiogornblendites. They are characterized by high concentrations of LILE (Cs, Rb, Sr, Ba) and low concentrations of HFSE (Nb, Ta, Zr, Hf, REE). It was established by geochemical thermometry that the parental magma was a water-saturated, moderate magnesian melt containing olivine phenocrysts in an amount of 16–18 wt.%. Sr-Nd isotopic data (εNd (Т) = + 5.2… + 10.3, εSrUR (Т) =

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Larkin, Max. "QUANTIFYING CRUSTAL CONTAMINATION: RELATING SIO2AND εND AS A PROXY FOR THE DEGREE OF CRUSTAL CONTAMINATION IN WESTERN NORTH AMERICA". У 112th Annual GSA Cordilleran Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016cd-274600.

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ГУСЕВ Н, И., Ю. РОМАНОВА Л, and Г. СКУБЛОВ С. "GEOCHEMISTRY AND AGE OF ZIRCON FROM KHAPCHAN ACCRETIONAL OLISTOSTROM OF ANABAR SHIELD." In ГЕОЛОГИЯ И МИНЕРАЛЬНО-СЫРЬЕВЫЕ РЕСУРСЫ СЕВЕРО-ВОСТОКА РОССИИ 2024. Crossref, 2024. http://dx.doi.org/10.53954/9785604990100_302.

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Chaotic breccias in carbonate rocks of the Paleoproterozoic Khapchan series of the Anabar Shield were characterized for the first time. Breccias belong to the flysch-carbonate subtype of accretionary olistostrome and confirm the existence of a subduction zone in the Paleoproterozoic in the east of the Anabar Shield. The olistostrome was formed in connection with underwater thrusts during the destruction of an accretionary uplift composed of weakly lithified and loose sedimentary material. The Sm-Nd isotope system of olistostrome rocks indicates a Paleoproterozoic age (TNd(DM2) = 2.34-2.42 Ga)

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Rey, Fernando, Matthew A. Malkowski та Hideki Masago. "ISOTOPIC VARIATIONS IN DETRITAL (ΕHF) AND WHOLE ROCK (ΕND) RECORDS ALONG RETREATING ACCRETIONARY MARGINS: INSIGHTS FROM SOUTHERN PATAGONIA AND JAPAN". У GSA Connects 2023 Meeting in Pittsburgh, Pennsylvania. Geological Society of America, 2023. http://dx.doi.org/10.1130/abs/2023am-395987.

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Henderson, Miles A., Linda C. Kah, Guillermo L. Albanesi та ін. "87SR/86SR AND εND STRATIGRAPHY OF MIDDLE ORDOVICIAN CARBONATE SEDIMENTS IN ARGENTINA: A POTENTIAL LINK BETWEEN BIOGEOCHEMICAL AND PHYSIOCHEMICAL CHANGES IN OCEAN CHEMISTRY". У GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-297832.

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Heinonen, Jussi S., Arto V. Luttinen, Saku K. Vuori, Wendy A. Bohrson, Frank J. Spera та Melissa A. Scruggs. "TWO GABBROIC DIKES FROM THE KAROO LIP EXHIBIT INCREASING εND TOWARDS THE CONTACT WITH THE WALLROCK AND RECORD TWO DISTINCT STORIES OF DIFFERENTIATION". У GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-302987.

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Bassom, Neil J., and Tung Mai. "Modeling and Optimizing XeF2-enhanced FIB Milling of Silicon." In ISTFA 1999. ASM International, 1999. http://dx.doi.org/10.31399/asm.cp.istfa1999p0255.

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Abstract Wide variations in the dose enhancement factor observed when milling silicon using Focused Ion Beam (FIB) XeF2 Gas Assisted Etching (GAE) prompted the development of a simple model of the GAE process. The model accounts for three material removal mechanisms: regular sputtering; gas-assisted sputtering; and spontaneous chemical reactions. An expression linking the dose enhancement factor, εd, to the gas and milling parameters has been derived. Experiments show that εd behaves as predicted; good quantitative agreement is achieved over wide ranges of milling parameters for εd values betw

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Černičková, Ivona, Marek Mihalkovič, Libor Ďuriška, Peter Švec, Peter Švec та Jozef Janovec. "Atomic models of εn structural variants - Overview". У APPLIED PHYSICS OF CONDENSED MATTER (APCOM 2022). AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0135821.

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Makino, Toshiro, and Hidenobu Wakabayashi. "Experimental Verification of Kirchhoff’s Thermal Radiation Law on Surfaces With Emittance Spectra Characterized by Optical Interference Phenomena." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22718.

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This paper discusses Kirchhoff’s law on thermal radiation. The logic of derivation of the law is reconsidered, first. Then, spectra of normal emittance εN and normal incidence hemispherical reflectance RNH are measured on surfaces whose microstructure changes in a non-equilibrium experimental system to examine the validity of the complementary relation between εN and RNH, which is the suggestion of Kirchhoff’s law. As the results of the examination, it is illustrated experimentally on a variety of surfaces that the complementary relation is valid within an experimental uncertainty. Provided th

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