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Journal articles on the topic 'Diagrammes de Diamond'

Author: Grafiati

Published: 13 July 2024

Last updated: 31 July 2025

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1

Breuil, Christophe. "Diagrammes de Diamond et (φ, Γ)-modules". Israel Journal of Mathematics 182, № 1 (2011): 349–82. http://dx.doi.org/10.1007/s11856-011-0035-3.

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2

Hu, Yongquan. "Valeurs spéciales de paramètres de diagrammes de Diamond." Bulletin de la Société mathématique de France 144, no. 1 (2016): 77–115. http://dx.doi.org/10.24033/bsmf.2707.

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3

Zinchenko, V. N., A. S. Ivanov, and I. V. Ashchepkov. "Diamond-associated minerals of the Zarnitsa pipe: A method for predicting CLIPPIR diamonds in weakly diamondiferous kimberlites." Regional Geology and Metallogeny, no. 99 (September 21, 2024): 44–67. https://doi.org/10.52349/0869-7892_2024_99_44-67.

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The article considers the geochemistry of diamond-associated minerals of the Karowe (Botswana) and Zarnitsa (Russia) weakly diamondiferous pipes – deposits containing high-quality and costly giant CLIPPIR diamonds. There is applied a predictive method for geochemical analogy to the diamond-associated minerals compositions of such pipes, according to a probabilistic geostatistics-based approach (cluster analysis). The methods of 5Е diagrams for four diamond-associated minerals – pyropes, picroilmenites, chromites and chrome diopsides, and 4E diagrams for pyropes can predict large and giant “nat

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4

Ivanov, A. S., V. N. Zinchenko, I. V. Ashchepkov, S. A. Babushkina, O. B. Oleinikov, and P. N. Shelkov. "PREDICTION OF THE PRIMARY SOURCES OF GIANT CLIPPIR DIAMONDS IN THE NORTH OF YAKUTIA BY THE METHOD OF MINERALOGICAL AND GEOCHEMICAL ANALOGY (METHOD 5E DIAGRAMS)." Geodynamics & Tectonophysics 15, no. 5 (2024): 0782. http://dx.doi.org/10.5800/gt-2024-15-5-0782.

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The finds of giant CLIPPIR-type diamonds in the placers hosted by the Ebelyakh River basin in the north of Yakutia suggest that similar diamonds can be found in the kimberlites of the Anabar region and the nearest northern deposits located within the collisional Khapchan and Daldyn terranes. To predict the discovery of such diamonds, the authors use the 5E diagram method based on the principle of similarity of the compositions of five oxides of satellite minerals (Grt, Cpx, Chr and Ilm) of diamond (DSM) with the reference diagrams for the Karowe pipe (K-6, Botswana) with the composition of tho

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5

Nefedov, Yuriy Viktorovich, and Igor Vyacheslavovich Klepikov. "Occurrence Regularities of Nitrogen Defects in the Ural Type Crystal Diamonds from Different Regions." Key Engineering Materials 769 (April 2018): 201–6. http://dx.doi.org/10.4028/www.scientific.net/kem.769.201.

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The collection of the Ural, Anabar and Brazilian diamonds is studied by infrared spectrometry method. For the reconstruction of the thermal formation conditions of diamond crystals, V. Taylor’s diagrams are made with the calculated isotherms. Graphs of the ratio of B1 and B2 defects are drawn. Conclusions about the thermal conditions of the Ural diamonds formation and their possible affinity to the specific and type of indigenous sources are made.

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6

Litvin, Yu A., and A. V. Spivak. "Genesis of diamonds and paragenetic inclusions under lower mantle conditions: the liquidus structure of the parental system at 26 GPa." Геохимия 64, no. 2 (2019): 128–44. http://dx.doi.org/10.31857/s0016-7525642128-144.

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The patterns of the joint genesis of diamonds, and their paragenetic inclusions under lower-mantle conditions, are controlled by the liquidus melting conditions of the multicomponent diamond-forming system. The boundary compositions of this system are evident from the generalized data produced by the analytical mineralogy of paragenetic inclusions in lower-mantle diamonds. We studied the structure of the liquidus of a theoretical diamond-forming system in a physicochemical experiment with P–T parameters typical of the depths of 670–800 km. The compositions of the parental melts/solutions for d

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7

Wang, Ji-Tao, Yong-Zhong Wan, David Wei Zhang, Zhi-Jie Liu, and Zhong-Qiang Huang. "Calculated phase diagrams for activated low pressure diamond growth from C–H, C–O, and C–H–O systems." Journal of Materials Research 12, no. 12 (1997): 3250–53. http://dx.doi.org/10.1557/jmr.1997.0426.

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Three-dimensional temperature (T)–pressure (P)–composition (X) phase diagrams of binary carbon-hydrogen (C–H) and carbon-oxygen (C–O) systems for activated low pressure diamond growth have been calculated. Based on an approximation of linear combination between C–H and C–O systems, a projective ternary carbonhydrogen-oxygen (C–H–O) phase diagram has also been obtained. There is always a diamond growth region in each of these phase diagrams. Once a supply of external activating energy stops, the diamond growth region will not exist. Nearly all of the reliable experimental data reported in the l

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8

Turkevich, V. Z. "Phase Diagrams and Synthesis of Diamond." High Pressure Research 22, no. 3-4 (2002): 525–29. http://dx.doi.org/10.1080/08957950212426.

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9

Qiu, Tianxu, Jianwei Feng, Bo Cai, Guojiang Fan, Wei Zhang, and Yong Liu. "Microstructural Evolution of Diamond-Based Composites at High Temperature and High Pressure." Materials 15, no. 24 (2022): 8753. http://dx.doi.org/10.3390/ma15248753.

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Improving the toughness of diamond composites has become an industrial demand. In this work, Co50Ni40Fe10 multi-element alloy was designed as binder for diamond-based composites prepared by high temperature and high pressure (HTHP). Two methods of mixing-sintering and infiltration-sintering were used to prepare diamond-based composites with different diamond contents. The phase diagrams of Co-C and Co50Ni40Fe10-C at 6 GPa were calculated by Thermo-Calc. The results show that Co50Ni40Fe10 multi-element alloy promotes the sintering of diamond powder than element Co. The transverse rupture streng

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10

Wang, Ji-Tao, Yong-Zhong Wan, Zhi-Jie Liu, Hao Wang, David Wei Zhang, and Zhong-Qiang Huang. "Phase diagrams for activated CVD diamond growth." Materials Letters 33, no. 5-6 (1998): 311–14. http://dx.doi.org/10.1016/s0167-577x(97)00123-7.

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11

Czelej, Kamil, and Piotr Śpiewak. "Hydrogen passivation of vacancies in diamond: Electronic structure and stability from ab initio calculations." MRS Advances 2, no. 5 (2017): 309–14. http://dx.doi.org/10.1557/adv.2017.100.

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ABSTRACTPoint defects in diamond such as vacancies act as a strong donor compensation center; therefore, remarkably reduce electron conductivity of diamond-based devices. Artificial synthesis methods of n-type diamond utilize the hydrogen-containing precursors enabling its diffusion into diamond crystal and subsequent formation of hydrogen-vacancy complexes. Here we employ spin-polarized, hybrid density functional theory calculations, in order to characterize the electronic properties and stability of hydrogen-passivated vacancies in diamond. We found strong thermodynamic preference for hydrog

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12

Ruijl, B., T. Ueda, and J. A. M. Vermaseren. "The diamond rule for multi-loop Feynman diagrams." Physics Letters B 746 (June 2015): 347–50. http://dx.doi.org/10.1016/j.physletb.2015.05.015.

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13

Fang, Jiaqi, Zhen Feng, and Bo Cai. "DrawnNet: Offline Hand-Drawn Diagram Recognition Based on Keypoint Prediction of Aggregating Geometric Characteristics." Entropy 24, no. 3 (2022): 425. http://dx.doi.org/10.3390/e24030425.

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Offline hand-drawn diagram recognition is concerned with digitizing diagrams sketched on paper or whiteboard to enable further editing. Some existing models can identify the individual objects like arrows and symbols, but they become involved in the dilemma of being unable to understand a diagram’s structure. Such a shortage may be inconvenient to digitalization or reconstruction of a diagram from its hand-drawn version. Other methods can accomplish this goal, but they live on stroke temporary information and time-consuming post-processing, which somehow hinders the practicability of these met

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14

Bogdanova, L. I., Yu V. Shchapova, L. Y. Sushanek, E. A. Vasiliev, and S. L. Votyakov. "Determination of the internal structural heterogeneity of natural diamond: Methodological aspects of using confocal Raman spectroscopy with polarization analysis." LITHOSPHERE (Russia) 24, no. 2 (2024): 347–63. http://dx.doi.org/10.24930/1681-9004-2024-24-2-347-363.

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Aim. To describe a technique for studying the internal structural heterogeneity of natural diamond crystals, based on confocal Raman spectroscopy with polarization analysis, including angular resolution, at high spectral (0.5–0.6 cm–1) and spatial (1 μm) resolution. Results. The parameters of the F2g vibrational mode in diamond (position, width, intensity, shape, including the Gaussian and Lorentzian contributions to the broadening) are determined by the superposition influence of a number of factors, including the type and content of structural stresses, deformations, various types of defects

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15

Kocherahinski, Yu A., and O. G. Kulik. "Equilibrium phase diagrams and manufacture of synthetic diamonds." Powder Metallurgy and Metal Ceramics 35, no. 7-8 (1996): 470–83. http://dx.doi.org/10.1007/bf01329241.

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16

Jenness, Stuart E. "Diamond Jenness's archaeological investigations on Barter Island, Alaska." Polar Record 26, no. 157 (1990): 91–102. http://dx.doi.org/10.1017/s003224740001113x.

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AbstractIn June and July 1914 DiamondJenness.amember of Stefansson's Canadian Arctic Expedition 1913–18, excavated 103 archaeological features in three abandoned native villages originally inhabited 400 to 550 years ago on Barter Island and nearby Arey Island, northern Alaska. His notes, diagrams, and some 3300 specimens for long remained unstudied. Recently they have been shown to provide much of the available information on the prehistoric occupation of the western Beaufort Sea coast.

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17

Ohtake, Naoto, Masanori Hiratsuka, Kazuhiro Kanda, et al. "Properties and Classification of Diamond-Like Carbon Films." Materials 14, no. 2 (2021): 315. http://dx.doi.org/10.3390/ma14020315.

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Diamond-like carbon (DLC) films have been extensively applied in industries owing to their excellent characteristics such as high hardness. In particular, there is a growing demand for their use as protective films for mechanical parts owing to their excellent wear resistance and low friction coefficient. DLC films have been deposited by various methods and many deviate from the DLC regions present in the ternary diagrams proposed for sp3 covalent carbon, sp2 covalent carbon, and hydrogen. Consequently, redefining the DLC region on ternary diagrams using DLC coatings for mechanical and electri

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18

Ohtake, Naoto, Masanori Hiratsuka, Kazuhiro Kanda, et al. "Properties and Classification of Diamond-Like Carbon Films." Materials 14, no. 2 (2021): 315. http://dx.doi.org/10.3390/ma14020315.

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Diamond-like carbon (DLC) films have been extensively applied in industries owing to their excellent characteristics such as high hardness. In particular, there is a growing demand for their use as protective films for mechanical parts owing to their excellent wear resistance and low friction coefficient. DLC films have been deposited by various methods and many deviate from the DLC regions present in the ternary diagrams proposed for sp3 covalent carbon, sp2 covalent carbon, and hydrogen. Consequently, redefining the DLC region on ternary diagrams using DLC coatings for mechanical and electri

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19

Liu, Zhi-Jie, David Wei Zhang, Jian-Yun Zhang, Yong-Zhong Wan, and Ji-Tao Wang. "Phase diagrams for CVD diamond deposition from halogen-containing gas phase." Thin Solid Films 342, no. 1-2 (1999): 42–46. http://dx.doi.org/10.1016/s0040-6090(98)01329-7.

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20

Ristein, J., M. Riedel, L. Ley, D. Takeuchi, and H. Okushi. "Band diagrams of intrinsic and p-type diamond with hydrogenated surfaces." physica status solidi (a) 199, no. 1 (2003): 64–70. http://dx.doi.org/10.1002/pssa.200303814.

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21

Conway, Lewis J., and Andreas Hermann. "High Pressure Hydrocarbons Revisited: From van der Waals Compounds to Diamond." Geosciences 9, no. 5 (2019): 227. http://dx.doi.org/10.3390/geosciences9050227.

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Methane and other hydrocarbons are major components of the mantle regions of icy planets. Several recent computational studies have investigated the high-pressure behaviour of specific hydrocarbons. To develop a global picture of hydrocarbon stability, to identify relevant decomposition reactions, and probe eventual formation of diamond, a complete study of all hydrocarbons is needed. Using density functional theory calculations we survey here all known C-H crystal structures augmented by targeted crystal structure searches to build hydrocarbon phase diagrams in the ground state and at elevate

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22

Hara, Keisuke, Hiromi Isobe, and Akira Kyusojin. "Optimization of Cutting Edge Truncation Depth for Ultrasonically Assisted Grinding to Finish Mirror Surface." Advanced Materials Research 76-78 (June 2009): 88–93. http://dx.doi.org/10.4028/www.scientific.net/amr.76-78.88.

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High precision mold grinding technique to obtain mirror surface is required which realizes minimization or omission of final polishing by skilled workers. In the previous reports, ultrasonic diamond grinding experiments were carried out to confirm ultrasonic oscillation effect for die steel face grinding. Smooth and glossy surfaces were obtained successfully and little abrasive worn out was found. In the above techniques require cutting edge truncation because the cutting edge shape of a tool affects the ground surface resulting from transcription of cutting edge. This paper describes optimiza

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23

Freiman, Yu A. "Molecular cryocrystals under pressure (a review)." Soviet Journal of Low Temperature Physics 16, no. 8 (1990): 559–86. https://doi.org/10.1063/10.0032673.

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Molecular cryocrystals (nitrogen, oxygen, fluorine, carbon monoxide and dioxide, etc.) belong to the simplest molecular systems undergoing phase transitions in the solid state. Investigations carried out during the last decades in the field of high and ultrahigh pressures, which have become possible owing to the diamond anvil technique and which allows attainment of pressures exceeding 1 Mbar and temperatures of 1000 K, have opened an astonishingly broad range of P–T phase diagrams of molecular cryocrystals. This article is a review of the entire body of the experimental data and theoretical r

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24

Kushnereva, A. S., G. Kh Sultanova, A. S. Useinov, A. A. Rusakov, and V. V. Solovyev. "Microspherical diamond single crystal indenter as a means of obtaining stress – strain diagrams." Industrial laboratory. Diagnostics of materials 91, no. 4 (2025): 78–84. https://doi.org/10.26896/1028-6861-2025-91-4-78-84.

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Obtaining a stress – strain diagram using tensile machines involves testing a large volume specimen. An alternative to such tests is the automated ball indentation test (ABI test — automatic ball indentation), which is designed to determine the stress-strain curves of metallic materials and structural elements. The purpose of this work is to study the applicability of the technique, which is developed for the obtaining of the stress – strain diagram using large spherical indenters (diameter 250 – 1500 μm), to work with a microspherical indenter with a diameter of 5 μm. The use of small diamete

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25

Liu, Kang, Sen Zhang, Benjian Liu, et al. "Investigating the energetic band diagrams of oxygen-terminated CVD grown e6 electronic grade diamond." Carbon 169 (November 2020): 440–45. http://dx.doi.org/10.1016/j.carbon.2020.07.079.

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26

Chakoumakos, Bryan C., and John B. Parise. "Probing Phase Transitions and Magnetism in Minerals with Neutrons." Elements 17, no. 3 (2021): 181–88. http://dx.doi.org/10.2138/gselements.17.3.181.

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The development of sophisticated sample environments to control temperature, pressure, and magnetic field has grown in parallel with neutron source and instrumentation development. High-pressure apparatus, with high- and low-temperature capability, novel designs for diamond cells, and large volume presses are matched with next-generation neutron sources and moderator designs to provide unprecedented neutron beam brightness. Recent developments in sample environments are expanding the pressure–temperature space accessible to neutron scattering experiments. Researchers are using new capabilities

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27

Monday, Eze, Okunbor Charles, and Chukwudum Umoke. "Studies in object-oriented programming backbone implementations." Global Journal of Engineering and Technology Advances 8, no. 2 (2021): 020–31. https://doi.org/10.5281/zenodo.5555908.

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This work is a combination of conceptual and hands on based study aimed at laying a foundation for practical Object-Oriented software construction. First it presents a conceptual study of a number of backbone concepts of modern Object-Oriented Programming (OOP) languages. Secondly, it attempts to demonstrate real-life implementations of these concepts using Python Programming Language. This work touches on practical issues on Class and Object Creation, especially on the syntax and creation, and demystifies the subject matter using a simple table of rules. The OOP concept of Inheritance was stu

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28

Usov, S. V., I. P. Tochilin, and A. V. Zhdanov. "Industrial Application of the Diamond-Electrochemical Honing Method." Elektronnaya Obrabotka Materialov 59, no. 4 (2023): 54–64. http://dx.doi.org/10.52577/eom.2023.59.4.54.

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The method of diamond-electrochemical honing (DEH) is a finishing method that provides the required characteristics of the surface roughness, the distribution of the residual surface stress diagrams, which ultimately ensures the formation of a high-strength electroplated coating. This article presents studies of changes in the surface roughness, the residual stresses, and other parameters depending on the selected DEH modes for the parts made of steels 30KhGSA, 30KhN2MFA, 35KhN2MFASH, 23KhGS2MFALU, and St. 50A. The article presents the design of the instrument-khon; with the solution of the is

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29

Gavryushkin, Pavel N., Altyna Bekhtenova, Sergey S. Lobanov, et al. "High-Pressure Phase Diagrams of Na2CO3 and K2CO3." Minerals 9, no. 10 (2019): 599. http://dx.doi.org/10.3390/min9100599.

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The phase diagrams of Na 2 CO 3 and K 2 CO 3 have been determined with multianvil (MA) and diamond anvil cell (DAC) techniques. In MA experiments with heating, γ -Na 2 CO 3 is stable up to 12 GPa and above this pressure transforms to P 6 3 /mcm-phase. At 26 GPa, Na 2 CO 3 - P 6 3 /mcm transforms to the new phase with a diffraction pattern similar to that of the theoretically predicted Na 2 CO 3 - P 2 1 /m. On cold compression in DAC experiments, γ -Na 2 CO 3 is stable up to the maximum pressure reached of 25 GPa. K 2 CO 3 shows a more complex sequence of phase transitions. Unlike γ Na 2 CO 3 ,

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30

Zhang, Shao Jian, Suet To, and Chi Fai Cheung. "Nonlinear Dynamics of Tool Vibration in Micro-Cutting." Key Engineering Materials 516 (June 2012): 645–50. http://dx.doi.org/10.4028/www.scientific.net/kem.516.645.

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This study focuses on the nonlinear dynamic characteristics of tool vibration in ultra precision diamond turning. Considering the first mode vibration of a tool, the tool is modelled as a one degree of freedom spring-mass-damper system with a developed cutting force model. Numerical simulations were carried out to anlyze the nonlinear dynamics of the system, using bifurcation diagrams, Poincaré maps, phase protraits, time histories and power spectral densities. The results indicated that the dynamic response of the tool is dominantly periodic and harmonic at its natural frequency with a little

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31

Liu, Zhi-Jie, David Wei Zhang, Peng-Fei Wang, et al. "Projective phase diagrams for CVD diamond growth from C–H and C–H–O systems." Thin Solid Films 368, no. 2 (2000): 253–56. http://dx.doi.org/10.1016/s0040-6090(00)00776-8.

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32

Zhang, Pan-Pan, Zhong-Yang Gao, Yu-Liang Xu, Chun-Yang Wang, and Xiang-Mu Kong. "Phase diagrams, quantum correlations and critical phenomena of antiferromagnetic Heisenberg model on diamond-type hierarchical lattices." Quantum Science and Technology 7, no. 2 (2022): 025024. http://dx.doi.org/10.1088/2058-9565/ac57f4.

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Abstract The spin-1/2 antiferromagnetic (AF) Heisenberg systems are studied on three typical diamond-type hierarchical lattices (systems A, B and C) with fractal dimensions 1.63, 2 and 2.58, respectively, and the phase diagrams, critical phenomena and quantum correlations are calculated by a combination of the equivalent transformation and real-space renormalization group methods. We find that there exist a reentrant behavior for system A and a finite temperature phase transition in the isotropic Heisenberg limit for system C (not for system B). Unlike the ferromagnetic case, the Néel temperat

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33

Hasanzadeh, Hamid, Ehsan Mohtarami, Mohammad Ebadati, Kazem Reza Kashyzadeh, and Mostafa Omidi Bidgoli. "Collapse analysis of Al 6061 alloy conical shells with circular cutouts under axial loading: experiment and simulation." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 236, no. 4 (2022): 704–14. http://dx.doi.org/10.1177/14644207211054655.

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The current research is conducted to investigate the experimental and numerical study of crushing behavior and buckling modes of thin-walled truncated conical shells with or without cutouts and discontinuities under axial loading. In this regard, Instron 8802 servohydraulic machine is used to perform the experiments. Additionally, the buckling modes, derived from the axial collapse phenomenon, are simulated with Finite Element (FE) software. The force-displacement diagrams extracted numerically are compared with experimental results. Various factors, including maximum force, energy absorption,

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34

Yao, Yu, Dandan Sang, Liangrui Zou, et al. "Enhanced Photoluminescence and Electrical Properties of n-Al-Doped ZnO Nanorods/p-B-Doped Diamond Heterojunction." International Journal of Molecular Sciences 23, no. 7 (2022): 3831. http://dx.doi.org/10.3390/ijms23073831.

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The hydrothermal approach has been used to fabricate a heterojunction of n-aluminum-doped ZnO nanorods/p-B-doped diamond (n-Al:ZnO NRs/p-BDD). It exhibits a significant increase in photoluminescence (PL) intensity and a blue shift of the UV emission peak when compared to the n-ZnO NRs/p-BDD heterojunction. The current voltage (I-V) characteristics exhibit excellent rectifying behavior with a high rectification ratio of 838 at 5 V. The n-Al:ZnO NRs/p-BDD heterojunction shows a minimum turn-on voltage (0.27 V) and reverse leakage current (0.077 μA). The forward current of the n-Al:ZnO NRs/p-BDD

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35

BARBIER, FRANCK, and XABIER ARETXANDIETA. "STATE-BASED COMPOSITION IN UML 2." International Journal of Software Engineering and Knowledge Engineering 18, no. 08 (2008): 987–1011. http://dx.doi.org/10.1142/s0218194008003970.

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The Composition relationship or "black diamond" in the Unified Modeling Language (UML) is recognized for a long time as a key modeling construct. While prior research works demonstrated that this modeling operator had a dubious semantics, new expectations in the field of Component-Based Software Engineering especially, lead to revisit this operator so that it supports dynamical composition, and more precisely, composition modeling expressions and implementations that safely refer to states of software components. At first, the revision of the UML Composition must rely on well-formalized static

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36

Jésior, Jean-Claude, Roger Vuong, and Henri Chanzy. "An Electron Diffraction Study on Litnerized Potato Starch." Proceedings, annual meeting, Electron Microscopy Society of America 48, no. 1 (1990): 580–81. http://dx.doi.org/10.1017/s042482010018166x.

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Starch is arranged in a crystalline manner within its storage granules and should thus give sharp X-ray diagrams. Unfortunately most of the common starch granules have sizes between 1 and 100μm, making them too small for an X-ray study on individual grains. There is only one instance where an oriented X-ray diagram could be obtained on one sector of an individual giant starch granule. Despite their small size, starch granules are still too thick to be studied by electron diffraction with a transmission electron microscope. The only reported study on starch ultrastructure using electron diffrac

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37

Matyunin, Vyacheslav M., Artem Yu Marchenkov, Nuha Abusaif, and Nikita A. Stasenko. "EVALUATION OF THE ELASTIC COMPLIANCE OF THE HARDNESS TESTER IN KINETIC INDENTATION TESTS." Industrial laboratory. Diagnostics of materials 85, no. 4 (2019): 57–63. http://dx.doi.org/10.26896/1028-6861-2019-85-4-57-63.

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When determining the mechanical properties of materials in kinetic indentation tests using indentation diagrams, careful consideration of the elastic compliance of the device, i.e., the hardness tester, is required. The determined values of the Young's modulus of the tested material substantially depend on the reliability of the method of evaluation and accounting for the elastic compliance. Therefore, verification of the test techniques based on kinetic indentation should be carried out using the materials with the known, but rather different values of the Young's modulus. Successful experien

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38

Okamoto, Kiyomi, Takashi Tonegawa, and Tôru Sakai. "Effect of monomer-monomer interactions on the phase diagrams of the S = 1/2 distorted diamond type quantum spin chain." Journal of Physics: Conference Series 683 (February 5, 2016): 012038. http://dx.doi.org/10.1088/1742-6596/683/1/012038.

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39

Arifutzzaman, A., Md Abdul Maleque, and D. Sujan. "The Crystallinity and Hardness Properties of Al-Cu/SiC_p New Composite Materials." Advanced Materials Research 576 (October 2012): 450–53. http://dx.doi.org/10.4028/www.scientific.net/amr.576.450.

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The main aim of this paper is to investigate the crystallinity and hardness properties of Al-Cu/SiCp matrix composite (AMC) materials. The materials were prepared using a noble stir casting technique by varying the percentage of Cu in the Al-Cu matrix. Qualitative X-ray analysis has been carried out to characterize the crystallinity of the Al-Cu/SiCp as-cast composite materials. Sample was cut and shaped into 25 mm×15 mm×4 mm in dimension then polished with diamond paste. X-ray diffraction diagrams were recorded using a transmission technique with a SHIMADZU Lab X (XRD-6000) X-ray generator op

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40

Senthilnathan, Karthikeyan, Ali Shamimi, Craig Bonsignore, Harshad Paranjape, and Tom Duerig. "Effect of Prestrain on the Fatigue Life of Superelastic Nitinol." Journal of Materials Engineering and Performance 28, no. 10 (2019): 5946–58. http://dx.doi.org/10.1007/s11665-019-04334-2.

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Abstract Three types of fatigue testing are performed to elucidate the effects of prestraining superelastic Nitinol on its subsequent fatigue lifetime: rotary bending and tension–tension testing of wire, and beam bending using diamond-shaped specimens fabricated from tubing. Results show that local plastic deformation during prestraining induces residual stresses that have a pronounced effect on fatigue performance, enhancing performance when the fatigue duty cycle is of the same sense as the prestraining (tensile prestraining followed by a tensile duty cycle, for example), and decreasing fati

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41

K., Karthikeyan, Nagarajan N., Sivaprakasam S., and Shakila K. "Hydro-geochemical Assessment of Seawater Intrusion in Freshwater Shallow Aquifer in Southeastern Coastal of Cuddalore District, Tamilnadu, India." International Journal of Engineering and Advanced Technology (IJEAT) 9, no. 6 (2020): 56–63. https://doi.org/10.35940/ijeat.F1216.089620.

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As the coastal line of Tamilnadu is long, it may have been affected due to sea water intrusion by natural (sea level rise) and anthropogenic. Therefore, this study deals with the Hydro chemical assessment of seawater interruption in freshwater aquifer in Parangipettai region. For this assessment, the groundwater samples have been collected in various locations of Parangipettai region for both pre and post-monsoon period. The collected samples were tested by laboratory method for the identification of major cat ions and anions, namely TDS, EC, chloride, magnesium, Bicarbonate, calcium, sodium,

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Sommer, M., and F. W. Smith. "Activity of tungsten and rhenium filaments in CH4/H2 and C2H2/H2 mixtures: Importance for diamond CVD." Journal of Materials Research 5, no. 11 (1990): 2433–40. http://dx.doi.org/10.1557/jmr.1990.2433.

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The resistance R, spectral emissivity ∊, and power consumption of W and Re filaments heated to 2500 °C in mixtures of CH4 or C2H2 in H2 have been measured in a series of experiments focusing on the state of the filament activity, i.e., its ability to dissociate the reactant gases. It has been found that these properties of the filaments, as well as the partial pressures of CH4 and C2H2 in the reaction chamber, depend critically on both the filament temperature and the reactant ratio, e.g., C2H2/H2. Specifically, both W and Re filaments show sharp jumps in power consumption at essentially the s

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Ekiz, Cesur, Jozef Strečka, and Michal Jaščur. "Phase diagrams of the mixed spin-1 and spin-1/2 Ising–Heisenberg model on the diamond-like decorated Bethe lattice." Journal of Magnetism and Magnetic Materials 323, no. 5 (2011): 493–98. http://dx.doi.org/10.1016/j.jmmm.2010.10.001.

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Khademhosseini, Vahideh, Daryoosh Dideban, Mohammad Taghi Ahmadi, and Hadi Heidari. "Schemes for Single Electron Transistor Based on Double Quantum Dot Islands Utilizing a Graphene Nanoscroll, Carbon Nanotube and Fullerene." Molecules 27, no. 1 (2022): 301. http://dx.doi.org/10.3390/molecules27010301.

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The single electron transistor (SET) is a nanoscale switching device with a simple equivalent circuit. It can work very fast as it is based on the tunneling of single electrons. Its nanostructure contains a quantum dot island whose material impacts on the device operation. Carbon allotropes such as fullerene (C60), carbon nanotubes (CNTs) and graphene nanoscrolls (GNSs) can be utilized as the quantum dot island in SETs. In this study, multiple quantum dot islands such as GNS-CNT and GNS-C60 are utilized in SET devices. The currents of two counterpart devices are modeled and analyzed. The impac

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Yusenko, Kirill V., Saiana Khandarkhaeva, Maxim Bykov, et al. "Face-Centered Cubic Refractory Alloys Prepared from Single-Source Precursors." Materials 13, no. 6 (2020): 1418. http://dx.doi.org/10.3390/ma13061418.

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Three binary fcc-structured alloys (fcc–Ir0.50Pt0.50, fcc–Rh0.66Pt0.33 and fcc–Rh0.50Pd0.50) were prepared from [Ir(NH3)5Cl][PtCl6], [Ir(NH3)5Cl][PtBr6], [Rh(NH3)5Cl]2[PtCl6]Cl2 and [Rh(NH3)5Cl][PdCl4]·H2O, respectively, as single-source precursors. All alloys were prepared by thermal decomposition in gaseous hydrogen flow below 800 °C. Fcc–Ir0.50Pt0.50 and fcc–Rh0.50Pd0.50 correspond to miscibility gaps on binary metallic phase diagrams and can be considered as metastable alloys. Detailed comparison of [Ir(NH3)5Cl][PtCl6] and [Ir(NH3)5Cl][PtBr6] crystal structures suggests that two isoformula

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Monday Eze, Charles Okunbor, and Umoke Chukwudum. "Studies in object-oriented programming backbone implementations." Global Journal of Engineering and Technology Advances 8, no. 3 (2021): 020–31. http://dx.doi.org/10.30574/gjeta.2021.8.3.0119.

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This work is a combination of conceptual and hands on based study aimed at laying a foundation for practical Object-Oriented software construction. First it presents a conceptual study of a number of backbone concepts of modern Object-Oriented Programming (OOP) languages. Secondly, it attempts to demonstrate real-life implementations of these concepts using Python Programming Language. This work touches on practical issues on Class and Object Creation, especially on the syntax and creation, and demystifies the subject matter using a simple table of rules. The OOP concept of Inheritance was stu

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Zhang, Yi, and Xiaoyan Yu. "Spectroscopy and Trace-Element Characteristics of Emeralds from Kamakanga, Zambia." Crystals 13, no. 11 (2023): 1605. http://dx.doi.org/10.3390/cryst13111605.

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Currently, Zambia is the second largest source of emeralds, after Colombia. In this study, emerald samples from the Zambian Kamakanga deposit were examined by UV-Vis-NIR, Miro-FTIR, Diamond ViewTM, and LA-ICP-MS. Representative UV-Vis-NIR spectra showed a distinct Fe3+ absorption peak, and the Fe-related absorption band was much stronger than that of the Cr-related absorption band. The infrared spectra showed that the absorption of type II H2O was much stronger than that of type I H2O. The results of LA-ICP-MS indicated that darker green, green, lighter green, and bluish-green emeralds had a c

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Abell, P. I., J. McClory, H. E. Hendry, and K. L. Wheatley. "Stratigraphic variations in carbon and oxygen isotopes in the dolostone of the Carswell Formation (Proterozoic) of northern Saskatchewan." Canadian Journal of Earth Sciences 26, no. 11 (1989): 2318–26. http://dx.doi.org/10.1139/e89-197.

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Petrographic and stable isotopic analyses of stromatolitic sediments deposited in nearshore environments provides us with some of the best information available on ancient environments. Diamond drill hole CAR 58 penetrated 110 m of sediments in the lowermost part of the Proterozoic (probably Helikian age) Carswell Formation of northern Saskatchewan and gave us such an opportunity. The rocks are mainly dolostone and include, in descending order of abundance, cyanobacterial laminites, stromatolites, dolomicrites, dolorudites, breccias, and oolites. Stromatolites and Cyanobacterial laminites incr

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Yahyono, Khansa Aulia Arinda Putri Ari, and Nurul Hidayah. "Analysis of packaging defect on goat milk caramel candy in Etawa Agroprima." Journal of Halal Science and Research 4, no. 1 (2023): 20–27. http://dx.doi.org/10.12928/jhsr.v4i1.7243.

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Goat's milk has the same benefits as cow's milk. Goat's milk contains many nutrients, especially complete protein from all kinds of essential amino acids. Etawa Agroprima is a company engaged in the processing and marketing dairy products. One of the products produced is goat's milk caramel candy. These candies are packaged using candy wrappers and diamond paper, which is covered with paper again, then put into PE plastic, sealed using a sealer, and put in a cardboard box. This packaging is intended to maintain the quality of the candy because the candy is easily runny if left open so that the

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Kwok, Tsz Chun, Chi Fai Cheung, Suet To, and Wing Bun Lee. "A Framework of a Surface Generation Model in Fast Tool Servo (FTS) Machining of Optical Microstructures." Key Engineering Materials 364-366 (December 2007): 1274–79. http://dx.doi.org/10.4028/www.scientific.net/kem.364-366.1274.

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In this paper, a framework of surface generation model in the fast tool servo (FTS) machining of optical microstructures will be described. The integrated model is totally composed of a tool path generator (TPG), a surface topography model (STM) and an optimization model (OM). To develop the tool path generator, two parts should be involved. The first part is the tool path generated based on cutting conditions such as the feed rate and spindle speed, the geometry of optical microstructures, and diamond tool geometry. Another part is the synchronized motion generated by the tool actuation of th

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