Relevant bibliographies by topics / 1-Directional structures

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic '1-Directional structures'

Author: Grafiati
Published: 7 June 2025
Last updated: 2 August 2025

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Journal articles on the topic "1-Directional structures"

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Xu, Rui. "Effects of Growth Rates on Directionally Solidified Microstructure of Al-Ni-Y Ternary Alloy." Advanced Materials Research 562-564 (August 2012): 477–81. http://dx.doi.org/10.4028/www.scientific.net/amr.562-564.477.

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The directional solidification of the ternary Al alloy with composition of 2.6 at%Ni, 0.9 at%Y and 96.5 at% Al was carried out under the temperature gradient of 5 K/mm and the droping velocities of 0.5 mm/min, 1 mm/min, 5 mm/min, 10 mm/min, and 25 mm/min. The microstructure of the Al-Ni-Y ternary alloy was also analyzed by X-ray diffraction and optical microscope. The experimental results show that the microstructures of the Al-Ni-Y ternary alloy are consisted of ª-Al2, Al3Ni and Y4Ni6Al23phase when the alloy was directionally solidified in all directionally solidified rates in the experiments
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Hashimoto, Noriaki, and Koji Konbune. "DIRECTIONAL SPECTRUM ESTIMATION FROM A BAYESIAN APPROACH." Coastal Engineering Proceedings 1, no. 21 (1988): 4. http://dx.doi.org/10.9753/icce.v21.4.

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A new directional spectral estimation method using a Bayesian approach is proposed. The proposed method is examined for numerical simulation data, and the validity of the method is discussed. Some examples of the directional spectra estimated from field observation data attained at an offshore oil rig utilizing seven wave probes are also shown in this report. The major conclusions of the report are : (1) The proposed method can be applied for more than four arbitrarily mixed instrument array measurements. (2) It has a higher resolution power than other existing methods for estimating direction
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Feshchanka, A. A., та V. V. Khoroshko. "Surface-barrier structures based on solid solutions (In <sub>2 </sub>S <sub>3 </sub>) <sub>х </sub>•(AgIn <sub>5 </sub>S <sub>8 </sub>) <sub>1–х </sub>". Doklady of the National Academy of Sciences of Belarus 65, № 6 (2021): 764–68. http://dx.doi.org/10.29235/1561-8323-2021-65-6-764-768.

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Single crystals of solid solutions (In2S3)x⋅ (AgIn5S8)1–x were grown by the method of directional crystallization of the melt (Bridgman method). Studies of the elemental composition and crystal structure of these single crystals have been carried out. On the basis of solid solutions (In2S3)x⋅ (AgIn5S8)1–x, photosensitive structures have been created for the first time and the photoelectric properties of these structures have been determined. The possibility of using the created structures as broadband photoconverters of optical radiation is shown.
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Zhang, Liwen, Guang Liu, Huawei Chen, et al. "Bioinspired Unidirectional Liquid Transport Micro-nano Structures: A Review." Journal of Bionic Engineering 18, no. 1 (2021): 1–29. http://dx.doi.org/10.1007/s42235-021-0009-z.

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AbstractUnidirectional liquid transport without any need of external energy has drawn worldwide attention for its potential applications in various fields such as microfluidics, biomedicine and mechanical engineering. In nature, numerous creatures have evolved such extraordinary unidirectional liquid transport ability, such as spider silk, Sarracenia’s trichomes, and Nepenthes alata’s peristome, etc. This review summarizes the current progresses of natural unidirectional liquid transport on 1-Dimensional (1D) linear structure and 2-Dimensional (2D) surface structure. The driving force of unidi
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Doppert, Michael Timothy, Hannah van Overeem та Tiddo Jonathan Mooibroek. "Intermolecular π-hole/n→π* interactions with carbon monoxide ligands in crystal structures". Chemical Communications 54, № 85 (2018): 12049–52. http://dx.doi.org/10.1039/c8cc07557c.

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Intermolecular π-hole/n→π* interactions with carbon monoxide ligands are abundant in the solid state, particularly with fac-like M(CO)<sub>3</sub> fragments. The interaction is somewhat directional and DFT calculations suggest energies up to about −10 kcal mol<sup>−1</sup> for adducts of charge neutral complexes.
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Yuan, Zhiling, Lei Geng, Ningning Wang, et al. "Topology Optimization Method of Stamping Structures Based on the Directional Density Field." Materials 17, no. 3 (2024): 656. http://dx.doi.org/10.3390/ma17030656.

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The stamping process produces thin-walled structures that, in general, have uniform wall thickness and no enclosed cavity. However, it is difficult to satisfy the above geometric requirements with the current density-based topology optimization method, since configuring the related geometric constraints is challenging. In order to solve this problem, a topology optimization method for stamping structures based on a directional density field is proposed. Specifically, the directional density field is developed to enable the adding and removing of materials only along the stamping direction, so
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Marandi, Farzin, and Harald Krautscheid. "Synthesis and Characterization of Lead(II) Complexes with the 4-Methoxybenzoyltrifluoroacetonate Ligand." Zeitschrift für Naturforschung B 64, no. 9 (2009): 1027–31. http://dx.doi.org/10.1515/znb-2009-0906.

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To investigate the intermolecular interactions of ligands in lead(II) complexes featuring stereochemical activity of the lone electron pair and noncovalent donor-acceptor interactions giving rise also to multidimensional networks, the compounds [Pb2(phen)2(mbtfa)4] (1) and [Pb2(dmp)2 (mbtfa)4] (2) (phen, dmp and mbtfa− for 1,10-phenanthroline, 2,9-dimethyl-1,10-phenanthroline and 4-methoxybenzoyltrifluoroacetonate ligands, respectively) have been prepared and characterized by elemental analysis and their crystal structures investigated. The structures show the coordination number of Pb(II) to
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Zhou, Xin-Bo, Jian-Ming Gu, Meng-ying Sun, Xiu-Rong Hu, and Su-Xiang Wu. "Crystal structures of vortioxetine and its methanol monosolvate." Acta Crystallographica Section E Crystallographic Communications 71, no. 8 (2015): 883–85. http://dx.doi.org/10.1107/s2056989015012256.

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Vortioxetine, C18H22N2S, (1), systematic name 1-{2-[(2,4-dimethylphenyl)sulfanyl]phenyl}piperazine, a new drug used to treat patients with major depressive disorder, has been crystallized as the free base and its methanol monosolvate, C18H22N2S·CH3OH, (2). In both structures, the vortioxetine molecules have similar conformations: in (1), the dihedral angle between the aromatic rings is 80.04 (16)° and in (2) it is 84.94 (13)°. The C—S—C bond angle in (1) is 102.76 (14)° and the corresponding angle in (2) is 103.41 (11)°. The piperazine ring adopts a chair conformation with the exocyclic N—C bo
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Boncompagni, Simona, Ann E. Rossi, Massimo Micaroni, et al. "Mitochondria Are Linked to Calcium Stores in Striated Muscle by Developmentally Regulated Tethering Structures." Molecular Biology of the Cell 20, no. 3 (2009): 1058–67. http://dx.doi.org/10.1091/mbc.e08-07-0783.

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Bi-directional calcium (Ca2+) signaling between mitochondria and intracellular stores (endoplasmic/sarcoplasmic reticulum) underlies important cellular functions, including oxidative ATP production. In striated muscle, this coupling is achieved by mitochondria being located adjacent to Ca2+ stores (sarcoplasmic reticulum [SR]) and in proximity of release sites (Ca2+ release units [CRUs]). However, limited information is available with regard to the mechanisms of mitochondrial-SR coupling. Using electron microscopy and electron tomography, we identified small bridges, or tethers, that link the
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Lopes, Maria, Armando Bernui, Camila Franco, and Felipe Avila. "Bulk Flow Motion Detection in the Local Universe with Pantheon+ Type Ia Supernovae." Astrophysical Journal 967, no. 1 (2024): 47. http://dx.doi.org/10.3847/1538-4357/ad3735.

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Abstract The bulk flow in the Local Universe is a collective phenomenon due to the peculiar motions of matter structures, which, instead of moving in random directions, appears to follow an approximate dipole velocity flow. We apply a directional analysis to investigate, through the Hubble-Lemaître diagram, the angular dependence of the Hubble constant H 0 of a sample of Type Ia supernovae from the Pantheon+ catalog in the Local Universe (0.015 ≤ z ≤ 0.06). We perform a directional analysis that reveals a statistically significant dipole variation of H 0, at more than 99.9% confidence level, s
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Dissertations / Theses on the topic "1-Directional structures"

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Han, Bo. "Hydro-mechanical coupling in numerical analysis of geotechnical structures under multi-directional seismic loading." Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/28683.

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This thesis numerically investigates the seismic behaviour of geotechnical structures under multi-directional loading by employing the coupled hydro-mechanical (HM) formulation of the Imperial College Finite Element Program (ICFEP). The scope of the research work can be summarised as follows: Firstly, the stability of the generalised-α method (CH method) for the coupled consolidation formulation, is analytically investigated for the first time and the corresponding theoretical stability conditions are derived. The analytically derived stability conditions are validated by finite element (FE) a
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Books on the topic "1-Directional structures"

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United States. National Aeronautics and Space Administration., ed. Modelling directional soldification: Second semi-annual progress report, 1 November 1990 to 30 April 1991. Clarkson University, 1991.

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United States. National Aeronautics and Space Administration., ed. Modelling directional soldification: Fourth semi-annual progress report, 1 March 1987 to 31 August 1987. Clarkson University, 1987.

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L, Regelʹ L., and United States. National Aeronautics and Space Administration., eds. Modelling directional soldification: Progress report on grant NAG8-831, 1 May 1991 to 31 October 1992. Clarkson University, 1991.

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L, Regel £. L., and United States. National Aeronautics and Space Administration., eds. Modelling directional soldification: Progress report on grant NAG8-831, 1 May 1991 to 31 October 1992. Clarkson University, 1991.

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Szewczyk, Janusz. Rola zaburzeń w kształtowaniu struktury i dynamiki naturalnych lasów bukowo-jodłowo-świerkowych w Karpatach Zachodnich. Publishing House of the University of Agriculture in Krakow, 2018. http://dx.doi.org/10.15576/978-83-66602-35-9.

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The aim of the study was to determine the influence of different disturbances (both natural and anthropogenic) on species composition and stand structure of old-growth mixed mountain forests in the Western Carpathians. These stands are usually dominated by beech, fir and spruce, mixed in different proportions. The tree main species represent different growth strategies, and they compete against each other. The longevity of trees makes the factors influencing the stand structure difficult to identify, even during longitudinal studies conducted on permanent research plots. That is why dendroecol
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Book chapters on the topic "1-Directional structures"

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Murray, P. W., F. M. Leibsle, C. A. Muryn, et al. "1→3 Dimensional Structures on a Uni-Directional Substrate." In Ultimate Limits of Fabrication and Measurement. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0041-0_24.

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Joshi, Kamal Kishore, Vishesh Ranjan Kar, Pankaj S. Ghatage, and Rama Kanta Layek. "Multi-Directional Graded Composites." In Advanced Composite Materials and Structures. CRC Press, 2022. http://dx.doi.org/10.1201/9781003158813-1.

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Rappel, W. J. "Patterns in Directional Solidification." In Nonlinear Structures in Physical Systems. Springer New York, 1990. http://dx.doi.org/10.1007/978-1-4612-3440-1_6.

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Cladis, P. E., J. T. Gleeson, and P. L. Finn. "Wavelength Selection and Hidden Ramps in Directional Solidification." In Nonlinear Structures in Physical Systems. Springer New York, 1990. http://dx.doi.org/10.1007/978-1-4612-3440-1_5.

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Murr, Lawrence E. "Examples of Directional Crystal Structures: Gas-Turbine Component Applications in Superalloys." In Handbook of Materials Structures, Properties, Processing and Performance. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-01905-5_22-1.

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Xu, Zhengbin, Xuanhao Sun, Jingjing Liu, Qinghai Song, Ozan Akkus, and Young Kim. "Back-directional Gated Spectroscopic Imaging for Nanoscale Deformation Analysis in Bone." In Application of Imaging Techniques to Mechanics of Materials and Structures, Volume 4. Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4419-9796-8_19.

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ARISTARKHOV, Grigory M. "Microstrip Filters on Co-directional Hairpin Resonators with Split Poles of Operating Attenuation." In Modern Radio Signals Filtering Devices Methods, Technologies, & Structures. BENTHAM SCIENCE PUBLISHERS, 2024. http://dx.doi.org/10.2174/9789815196504124010015.

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Circuit engineering methods for increasing frequency selectivity of microstrip filters based on half-wave co-directional hairpin resonators are studied, the principle of operation which is based on the rational use of the effect of inequality of normal wave phase velocities. It is shown that in these structures with N resonators, it is possible to form N + 1 operating attenuation poles at finite frequencies without introducing additional electromagnetic couplings between non-adjacent resonators. The conditions for splitting the operating attenuation poles in compact multiply coupled structures
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Zhang, Zhipeng, Yiqun Zhang, An Zeng, et al. "Time-Series Data Imputation via Realistic Masking-Guided Tri-Attention Bi-GRU." In Frontiers in Artificial Intelligence and Applications. IOS Press, 2023. http://dx.doi.org/10.3233/faia230625.

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Time series data with missing values are ubiquitous in real applications due to various unforeseen faults during data generation, storage, and transmission. Time-Series Data Imputation (TSDI) is thus crucial to many temporal data analysis tasks. However, existing works usually consider only one of the following two issues: (1) intra-feature temporal dependency, and (2) inter-feature correlation, leading to the overlook of complex coupling information in imputation. To achieve more accurate TDSI, we design a novel imputation model called TABiG, which delicately preserves the short-term, long-te
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Alexandrov, D. V., V. V. Mansurov, and P. K. Galenko. "Dynamic Instability of Rapid Solidification Fronts." In Mathematics of Heat Transfer. Oxford University PressOxford, 1998. http://dx.doi.org/10.1093/oso/9780198503583.003.0005.

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Abstract Planar front dynamic instability in the presence of rapid solidification is considered. Directional solidification of multi-component liquids often produces material with a laminated periodic ordered structure, especially under reduced gravity conditions when convection is hindered or prohibited. This structure has layers of abnormally high or low solute concentrations, roughly parallel to the crystallization front. This was detected by Stewart et al. [1] and is extensively discussed in [2)-[6). Different layered segregation patterns are characteristic of semiconductor crystals [7]-[1
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Pazderková Markéta, Kočišová Eva, Pazderka Tomáš, et al. "Antimicrobial peptide from the eusocial bee Halictus sexcinctus interacting with model membranes." In Advances in Biomedical Spectroscopy. IOS Press, 2013. https://doi.org/10.3233/978-1-61499-184-7-079.

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Halictine-1 (Hal-1) &amp;ndash; a linear antibacterial dodecapeptide isolated from the venom of the eusocial bee Halictus sexcinctus &amp;ndash; has been subjected to a detailed spectroscopic study including circular dichroism, fluorescence and vibrational spectroscopy. We investigated Hal-1's ability to adopt an amphipathic &amp;alpha;-helical structure upon interaction with model lipid based bacterial membranes (phosphatidylcholine/phosphatidylglycerol based large unilamellar vesicles, sodium dodecylsulfate micelles) and helix inducing components (trifluoroethanol). It was found that Hal-1 r
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Conference papers on the topic "1-Directional structures"

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Janardhanan, Sheeja, and Vidya Chandran. "Numerical Study on the Influence of Directional Natural Frequency on Flow Induced Vibrations." In International Conference on Design, Materials and Metaheuristic Algorithms for Engineering. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-tb7p5r.

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A Two dimensional numerical analysis is done for varying directional natural frequency ratio for a cylinder which is mounted elastically and executes two-degrees of freedom vortex induced vibration (VIV). VIV of the cylindrical structure at subcritical Reynolds number (Re) of 3.8 x 104 is studied using a RANSE based CFD transient fluid structure interaction dynamic simulation model employing a user defined function for modeling the response. Analyses are carried out for three different values of directional natural frequency ratios in the range 0.5, 1 and 1.5. Cylindrical models corresponding
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PINES, D., D. MILLER, and A. VON FLOTOW. "Directional filters for sensing 1-D structural dynamics." In 33rd Structures, Structural Dynamics and Materials Conference. American Institute of Aeronautics and Astronautics, 1992. http://dx.doi.org/10.2514/6.1992-2333.

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Chu, An-Shyang, Saleen H. Zaidi, A. B. Torres, S. R. J. Brueck, and B. L. Draper. "Fabrication of nanometer linewidth structures in Si." In OSA Annual Meeting. Optica Publishing Group, 1992. http://dx.doi.org/10.1364/oam.1992.tui1.

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Techniques for fabrication of large, uniform arrays of semiconductor structures with nanometer-scale dimensions are of great interest for investigating quantum size effects. We report on a simple technique for fabricating arrays of Si wires with transverse dimensions ≤ 10 nm. This technique takes advantage of the capabilities of optical interferometric lithography to produce very high spatial frequency gratings and the strongly directional KOH etching of Si. A &lt;110&gt; Si wafer is prepared with thin (50-nm) Si3N4 and standard photoresist (0.15 mm) layers. A submicrometer period grating is i
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Millar, P., J. S. Aitchison, J. U. Kang, G. I. Stegeman, and A. Villeneuve. "Nonlinear Multi-Core Directional Couplers in AlGaAs." In Nonlinear Guided Waves and Their Applications. Optica Publishing Group, 1996. http://dx.doi.org/10.1364/nlgw.1996.saa.4.

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Nonlinear, multicore, directional couplers exhibit power dependent transmission characteristics which have a wide range of potential applications in future all optical systems. These include modulators , power splitters , wavelength filters and all optical interconnections.[1] Recent theoretical studies [2] have shown that three guide couplers have sharper switching characteristics than the standard dual core coupler and should therefore, be of interest in all-optical switching , pulse narrowing and pulse shaping applications. In addition, multiguide structures with varying coupling coefficien
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Angatkina, Oyuna, Brian Chien, Alexander Pagano, et al. "A Metameric Crawling Robot Enabled by Origami and Smart Materials." In ASME 2017 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/smasis2017-3836.

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Metamerism, in biology, occurs when a creature has multiple segments, which are similar in structure and configured in series. True metamerism means that these connected segments include a repetition of all organs and muscle tissues. Earthworms are examples of true metameric creatures. Animals use metameric structures to increase maneuverability and enable multiple modes (gaits) of locomotion along with other functions. This work presents the design of a crawling robot that is inspired by the crawling gait and true metamerism of earthworms. The building block of each segment is a bistable orig
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Campbell, Joe C., Robert A. Mayer, Kim H. Jung, and Dim-Lee Kwong. "GexSi1-x optical directional coupler." In Integrated Photonics Research. Optica Publishing Group, 1991. http://dx.doi.org/10.1364/ipr.1991.tha1.

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Historically, GaAs- and InP-based compounds have been the dominant materials for optoelectronic devices, whereas Si has been the material of choice in the commercial electronics industry because of its ease of handling, ease of processing, and low manufacturing costs. For this reason, hybrid techniques have frequently been used to combine optoelectronic devices and electronic circuits. Since this can be costly, there has been a concentrated effort to develop III-V compound optoelectronic integrated circuits.1 A promising alternative involves the use of Ge x Si1- x layers, grown on Si substrate
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Sarid, Dror, Wayne M. Gibbons, and Mial E. Warren. "Optical Waveguides in Multiple Quantum Well Structures." In Optical Bistability. Optica Publishing Group, 1985. http://dx.doi.org/10.1364/obi.1985.wa5.

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Nonlinear channel waveguides can serve as building blocks for all-optical processing devices such as directional couplers, Mach-Zehnder interferometers, and ring channels. An attractive nonlinear medium for such devices is an excitonic system such as a MQW structure, since the nonlinearity is large and the operating wavelength is compatible with solid-state lasers. In contrast to electronic or bandfilling nonlinearities, the calculation of the parameters of an excitonic system is complicated by the fact that the absorption as well as the nonlinear refractive index are a function of the local i
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Koai, Kwang T., and Pao-Lo Liu. "Modeling of Ti:LiNBO3 directional couplers by a 2-D beam propagation method." In OSA Annual Meeting. Optica Publishing Group, 1987. http://dx.doi.org/10.1364/oam.1987.mk6.

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A beam propagation method (BPM) provides a useful approach to the simulation of most guided-wave devices because (1) it treats the guided and the radiating fields with the same formalism; (2) it can analyze device structures which vary along the propagation direction.1 Instead of the 3-D BPM approach, which usually needs a supercomputer, we used a 2-D BPM approach to model Ti-diffused directional couplers on LiNbO3 fabricated by Alferness et al.,2 Noda et al.,3 and Feit et al.4 The 1-D effective-index profile was calculated to replace the transverse 2-D refractive-index profile. The input vari
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A.I. Azeem, Omar, and Lorenzo Iannucci. "A machine learning assisted preliminary design methodology for repetitive design features in complex structures." In Design Computation Input/Output 2022. Design Computation, 2022. http://dx.doi.org/10.47330/dcio.2022.caxl3310.

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The current industrial practice used at the preliminary design stage of complex structures involves the use of multifidelity submodelling simulations to predict failure behaviour around geometric and structural design features of interest, such as bolts, fillets, and ply drops. A simplified global model without the design features is first run and the resulting displacement fields are transferred to multiple local models containing the design features of interest. The creation of these high-fidelity local feature models is highly expert dependent, and their subsequent simulation is highly time
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Córdova, M., and J. Vallejos. "Methodology Development to Incorporate Anisotropy in Slope Stability Analysis at Los Bronces Mine®." In 58th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2024. http://dx.doi.org/10.56952/arma-2024-1069.

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ABSTRACT: The rock mass strength depends on a combination of non-persistent discontinuities and blocks of rock mass. Currently, the representation of the strength for slope stability analysis includes the joints sets (structural domains) with preferential orientations that generate unfavorable stability conditions. For the limit equilibrium stability analysis of slopes the strength of the anisotropic rock mass is estimated by means of an anisotropic rosette and the respective rock bridge percentage. This work focusses on providing guidelines for Los Bronces Mine to estimate the directional res
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Reports on the topic "1-Directional structures"

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Hair. L51725 Drilling Fluids in Pipeline Installation by Horizontal Directional Drilling-Practical Applications. Pipeline Research Council International, Inc. (PRCI), 1994. http://dx.doi.org/10.55274/r0010163.

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Drilling fluid plays a key role in the installation of a pipeline by horizontal directional drilling (HDD) and accounts for the majority of the associated environmental impact. An improper drilling fluid program can result in stuck pipe. Uncontrolled discharge of drilling fluid downhole can damage or undermine adjacent structures.The cost of drilling fluid involved with pipeline installation, particularly when disposal costs are considered, can be substantial. This manual is the principal product of PRC project PR-227-9321. Its purpose is to increase the level of technical sophistication relat
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Raymond, Kara, Laura Palacios, and Evan Gwilliam. Status of climate and water resources at Big Bend National Park: Water year 2019. Edited by Tani Hubbard. National Park Service, 2022. http://dx.doi.org/10.36967/2294267.

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Climate and hydrology are major drivers of ecosystem structure and function, particularly in arid and semi-arid ecosystems. Understanding changes in climate, groundwater, streamflow, and water quality is central to assessing the condition of park resources. This report combines data collected on climate, groundwater, and springs at Big Bend National Park (NP) to provide an integrated look at climate and water conditions during water year (WY) 2019 (October 2018–September 2019). However, this report does not address the Rio Grande or its tributaries. Annual precipitation was higher than normal
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