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Journal articles on the topic 'Operation X'

Author: Grafiati

Published: 29 July 2024

Last updated: 30 July 2024

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1

Desbarats, Robert P., and Donald G. MacDiarmid. "Independent Operations: Article X of the CAPL Operating Procedure." Alberta Law Review 34, no. 3 (May 1, 1996): 602. http://dx.doi.org/10.29173/alr658.

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This article discusses independent oil and gas operations on jointly held properties, and in particular considers the application of Article X of the Operating Procedures of the Canadian Association of Petroleum Landmen. It explores the rights and obligations of both the party proposing the independent operation and the non-participating party. Recent judicial consideration of some aspects of the operating procedures is discussed. The article suggests some specific changes parties may wish to incorporate when adapting the operating procedure to their circumstances.

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2

Sandoval-Ruiz, Cecilia E. "Fractal mathematical over extended finite fields Fp[x]/(f(x))." Proyecciones (Antofagasta) 40, no. 3 (June 1, 2021): 731–42. http://dx.doi.org/10.22199/issn.0717-6279-4322.

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In this paper, we have defined an algorithm for the construction of iterative operations, based on dimensional projections and correspondence between the properties of extended fields, with respect to modular reduction. For a field with product operations R(x) ⊗ D(x), over finite fields, GF[(pm)n−k]. With Gp[x]/(g(f(x)), whence the coefficient of the g(x) is replaced after a modular reduction operation, with characteristic p. Thus, the reduced coefficients of the generating polynomial of G contain embedded the modular reduction and thus simplify operations that contain basic finite fields. The algorithm describes the process of construction of the GF multiplier, it can start at any stage of LFSR; it is shift the sequence of operation, from this point on, thanks to the concurrent adaptation, to optimize the energy consumption of the GF iterative multiplier circuit, we can claim that this method is more efficient. From this, it was realized the mathematical formalization of the characteristics of the iterative operations on the extended finite fields has been developed, we are applying a algorithm several times over the coefficients in the smaller field and then in the extended field, concurrent form.

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3

Dhard, Chandra Prakash, Michael Nagel, Holger Bau, Sylvio Raatz, Uwe Meyer, and Thomas Rummel. "Refrigerator operation during commissioning and first plasma operations of Wendelstein 7-X." Fusion Engineering and Design 123 (November 2017): 111–14. http://dx.doi.org/10.1016/j.fusengdes.2017.05.002.

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4

Gani, Fathurrahmah Abd, Dasa Ismaimuza, and Sudarman Sudarman. "PROFIL PEMAHAMAN KONSEP SISWA DITINJAU DARI TINGKAT KEMAMPUAN MATEMATIKA PADA MATERI FUNGSI KOMPOSISI." Aksioma 9, no. 2 (September 25, 2020): 98–111. http://dx.doi.org/10.22487/aksioma.v9i2.520.

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Abstract: The aim of this research was to describe the profile of understanding the concept of class X MIA students based on the level of mathematical ability. The research was conducted at MA Alkhairaat Palu using a qualitative descriptive approach. The results of the study show that the understanding of the concept of ST in classifying the function of composition is that there is a function and operation of composition. Identify the characteristics of operations or concepts students use associative, distributive, composition operations and algebraic. Applying the concept students explain the properties and operations. Giving examples and not the composition function of the students explains the example, that there is an operation of composition and not there is no operation of the composition. Presenting the problem students presents in the form of mathematical models. Understanding the SS concept in classifying composition functions, namely a combination of functions associated with composition operations. Identify the characteristics of operations or concepts, namely the nature of distributive, operating composition and calculating algebra. Applying the concept students explain the properties and operations. Give an example and not an example of a composition function is an example is that there is a composition operation and not that there is no composition operation. Presenting problems in the form of mathematical models. Understanding the concept of SR in classifying the function of composition, namely there is a composition operation. Give an example and not an example of a composition function, is an example there is a composition operation and not an example, that is, there is no composition operation.

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5

van Eeten, P., H. S. Bosch, R. Brakel, and S. Degenkolbe. "Organizing Wendelstein 7-X device operation." Fusion Engineering and Design 160 (November 2020): 111843. http://dx.doi.org/10.1016/j.fusengdes.2020.111843.

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6

Fiedorowicz, H. "X-Ray Lasers, Operation and Applications." Acta Physica Polonica A 91, no. 5 (May 1997): 945–51. http://dx.doi.org/10.12693/aphyspola.91.945.

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7

Samsatli, N. J., L. G. Papageorgiou, and N. Shah. "Batch process design and operation using operational envelopes." Computers & Chemical Engineering 23 (June 1999): S887—S890. http://dx.doi.org/10.1016/s0098-1354(99)80218-x.

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8

Zhitai Jia, Zhitai Jia, Yanru Yin Yanru Yin, He Yang He Yang, Baitao Zhang Baitao Zhang, Jingliang He Jingliang He, Mauro Tonelli Mauro Tonelli, and and Xutang Tao and Xutang Tao. "Highly efficient Nd:(LaxGd1?x)3Gd5O12 laser operation at 1.33??μm." Chinese Optics Letters 14, no. 2 (2016): 021405–21408. http://dx.doi.org/10.3788/col201614.021405.

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9

Smetaniuk, Bohdan. "Distributed operation of the X.500 directory." Computer Networks and ISDN Systems 21, no. 1 (March 1991): 17–40. http://dx.doi.org/10.1016/0169-7552(91)90071-j.

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10

Arhangelskii, A. V. "An operation on topological spaces." Applied General Topology 1, no. 1 (October 1, 2000): 13. http://dx.doi.org/10.4995/agt.2000.3021.

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<p>A (binary) product operation on a topological space X is considered. The only restrictions are that some element e of X is a left and a right identity with respect to this multiplication, and that certain natural continuity requirements are satisfied. The operation is called diagonalization (of X). Two problems are considered: 1. When a topological space X admits such an operation, that is, when X is diagonalizable? 2. What are necessary conditions for diagonalizablity of a space (at a given point)? A progress is made in the article on both questions. In particular, it is shown that certain deep results about the topological structure of compact topological groups can be extended to diagonalizable compact spaces. The notion of a Moscow space is instrumental in our study.</p>

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11

Çakır, Fatih Hayati, Mehmet Alper Sofuoğlu, and Selim Gürgen. "Machining of Hastelloy-X Based on Finite Element Modelling." Advanced Engineering Forum 30 (November 2018): 1–7. http://dx.doi.org/10.4028/www.scientific.net/aef.30.1.

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Nickel-based alloys provide high corrosion resistance and high-temperature strength but these alloys possess poor machinability. Hastelloy-X is a nickel based alloy that has been used for high temperature use. There are many studies about finite element modeling of aerospace alloys but studies in literature with Hastelloy-X are limited. In the present work, machining characteristics of Hastelloy-X were investigated and a numerical model was developed for the turning operation of Hastelloy-X. Two input parameters (cutting speed and feed rate) were variated in the operations and the results were evaluated considering process outputs such as cutting forces, cutting temperature, effective stresses and chip morphology. Based on the verification of the numerical model using experimental results, presented material model is appropriate for the turning operation of Hastelloy-X at low and medium cutting speed machining conditions.

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12

Lottrup-Andersen, Chr. "B. STRANDBYGAARD: Om intranasale Operationer for Taarevejslidelser (West's Operation)." Acta Ophthalmologica 1, no. 1-2 (May 27, 2009): 285–86. http://dx.doi.org/10.1111/j.1755-3768.1923.tb03158.x.

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13

Simões, Danilo, Ricardo Hideaki Miyajima, Rodrigo Petrongari Tonin, Paulo Torres Fenner, and Gislaine Cristina Batistela. "INCORPORATION OF UNCERTAINTY IN TECHNICAL AND ECONOMIC ANALYSIS OF A FELLER-BUNCHER." FLORESTA 48, no. 3 (June 14, 2018): 403. http://dx.doi.org/10.5380/rf.v48i3.56404.

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The constant technical and economic analysis of timber harvesting operations is essential and determining, due to the monetary magnitude. Traditionally, these analyses are conducted deterministically, which does not allow obtaining values with probabilities of occurrence. Considering this issue, stochastic models were built in order to analyze the behavior of probabilistic production cost in felling operations with feller-buncher, through the Monte Carlo method. The study was conducted in the Central-West region of the state of São Paulo in a forest of Eucalyptus sp., with six years of age, planted in 3 x 2 m spacing. Technical analysis was based on the study of time and movements, which determined the effective productivity and economy in the hourly operating cost of the feller-buncher and in the production costs of the operation. Due to uncertainties, probability distributions were assigned to these results, which identified the most relevant variables and quantified the probabilities of the production cost. The results demonstrated that the fuel cost had a statistically significant strong positive correlation coefficient ( = 0.91) (p-value < 0.01). The hourly cost, consequently, was directly proportional to the production cost of the operation. The production cost of the operation in flat relief was 18% lower than the production cost of the operation in undulating relief.

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14

Dasgupta, Abhijit. "Boolean operations, Borel sets, and Hausdorff's question." Journal of Symbolic Logic 61, no. 4 (December 1996): 1287–304. http://dx.doi.org/10.2307/2275817.

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The study of infinitary Boolean operations was undertaken by the early researchers of descriptive set theory soon after Suslin's discovery of the important operation. The first attempt to lay down their theory in a systematic fashion was the work of Kantorovich and Livenson [5], where they call these the analytical operations. Earlier, Hausdorff had introduced the δs operations — essentially same as the monotoneω-ary Boolean operations, and Kolmogorov, independently of Hausdorff, had discovered the same objects, which were used in his study of the R operator.The ω-ary Boolean operations turned out to be closely related to most of the classical hierarchies over a fixed Polish space X, including, e. g., the Borel hierarchy (), the difference hierarchies of Hausdorff (Dη()), the C-hierarchy (Cξ) of Selivanovski, and the projective hierarchy (): for each of these hierarchies, every level can be expressed as the range of an ω-ary Boolean operation applied to all possible sequences of open subsets of X. In the terminology of Dougherty [3], every level is “open-ω-Boolean” (if and are collections of subsets of X and I is any set, is said to be -I-Boolean if there exists an I-ary Boolean operation Φ such that = Φ, i. e. is the range of Φ restricted to all possible I-sequences of sets from ). If in addition, the space X has a basis consisting of clopen sets, then the levels of the above hierarchies are also “clopen-ω-Boolean.”

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15

Kemper, Christian. ""Überfällige Operation"." Bankmagazin 68, no. 7-8 (July 2019): 3. http://dx.doi.org/10.1007/s35127-019-0088-x.

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16

Afrisca, Cindy Clara. "Evaluasi Rigless Plug & Abandonment: Sebuah Studi Kasus." Jurnal Nasional Pengelolaan Energi MigasZoom 2, no. 2 (December 5, 2020): 09–20. http://dx.doi.org/10.37525/mz/2020-2/256.

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Oil was explored and found by Royal Dutch (Shell Group) geologist in early 1900. And since Indonesia’s independence, development in oil and gas projects was able to put Indonesia as one of major oil exporter country with daily production above 1 Million barrel per day in 1970 – 1990. With time as fields become mature, some of the fields have come to the end of its life cycle, where mostly 70% of Indonesia total old oil wells will have no economic value and has to be permanently Plug and Abandonment (P&A) as ruled by the government. It’s part of decommissioning an entire field with environmental preservation which called Abandonment and Site Restoration (ASR). As P&A will impact operating company investment as outlined in Ministry of Energy and Mineral Resources (ESDM) No. 15, 2008, efficient P&A operation should be evaluated to ensure proper planning and executions. The subject of evaluation is X well located onshore at Y Field, Java, Indonesia. P&A operation with multiple cements plugs as barriers to ensure no fluids migrations from one formation to others, or to surface. Evaluation between workover rig and rigless P&A operation with coiled tubing unit (CTU) and electric line (E-line) will be presented in this paper to value the expenditures and achieving the result as standardize by the government with accordance of operating company standard. Results show that rigless operation is the preferable solution, which lead to cost effective operation. Rigless operation saves 25% of P&A operations even tough with longer operation days.

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17

Shyamala Devi, M., R. Suguna, Paul K. Lbungdim, Sairam Kondapalli, Satwat Kumar Ambashta, and Duggishetti Akhil. "Systematic Image Zooming and Panning of Graphical Images Using Fractional Replication." Journal of Computational and Theoretical Nanoscience 17, no. 1 (January 1, 2020): 519–25. http://dx.doi.org/10.1166/jctn.2020.8700.

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Scaling is the major operation performed in Transformation of images. The Scaling is an important operation for resizing and reshaping the images that are in digital form. Various operations can be performed with digital images out of which the shrinking and zooming are the most widely operations by any type of users in the world. The other name for shrinking is sub sampling and the zooming operation is also named as Oversampling. The purpose of zooming operation is to extend or enlarge the image in order to have a clear and efficient view. Zooming operations are mostly performed in our mobile for viewing the images in our gallery and this operation is the most frequently performed operation by the mobile users. By considering all these factors, graphical images are the most widely agent to convey any information to the transmitter in order to know the position, size of an object. With this in concern, we try to focus on graphical image zooming as it is very important process in image processing. In this paper, we have used Fractional Replication for Image Zooming that is processed by copying and replicating the pixels from the base image based on the inexact spatial correspondence between the base image and zoom image. And also, the pixel address of the zoom image is calculated fractionally from the pixel address of the base image. We have implemented all the zooming operations like Zoom out in subject of Y-Axis, Zoom out in subject of X-Axis, Zoom in subject of Y Axis, Zoom in subject of X Axis, Left Side Panning, Right Side Panning, Top Zoom Panning and Bottom Zoom Panning for a graphical image using C programming language. Here we attempt to process the various Zooming operation analysis of the graphical image.

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18

Murana, G., C. Mariani, J. Alfonsi, M. Fiorentino, G. Coppola, G. Folesani, A. Leone, S. Martin Suarez, D. Pacini, and R. Di Bartolomeo. "RF08 BENTALL OPERATION WITH ON-X MECHANICAL CONDUIT." Journal of Cardiovascular Medicine 19 (November 2018): e69. http://dx.doi.org/10.2459/01.jcm.0000550062.11675.a6.

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19

Conroy, G. H. "LowNo/sub x/ pyro-systems design and operation." IEEE Transactions on Industry Applications 29, no. 5 (1993): 867–75. http://dx.doi.org/10.1109/28.245708.

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20

Keene, Tom. "Kill the Führer: Section X and Operation Foxley." Global War Studies 9, no. 1 (June 1, 2012): 107–8. http://dx.doi.org/10.5893/19498489.09.01.17.

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21

Thompson, N. R., B. W. J. McNeil, and D. J. Dunning. "High Brightness SASE Operation of X-ray FELs." Physics Procedia 52 (2014): 52–61. http://dx.doi.org/10.1016/j.phpro.2014.06.009.

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22

Spring, Anett, Heike Laqua, and Jörg Schacht. "User control interface for W7-X plasma operation." Fusion Engineering and Design 82, no. 5-14 (October 2007): 1002–7. http://dx.doi.org/10.1016/j.fusengdes.2007.05.052.

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23

Le, Thi Kieu Nga, Fabian Schwartau, Sebastian Paul, Duy Tung Phan, Ping Jack Soh, and Joerg Schoebel. "Independently Tunable Triband Patch Antenna with Band-Notched Characteristics for X-Band Applications." International Journal of Antennas and Propagation 2023 (June 15, 2023): 1–12. http://dx.doi.org/10.1155/2023/1395473.

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This paper presents a triband antenna with a simple design for X-band applications. The proposed antenna is designed based on a patch with a truncated corner slot and complementary split-ring resonators in the ground plane. In this way, the antenna exhibits three operating bands and its resonant frequencies can be controlled independently by changing dimensions of the slot in the patch and the resonator structures in the ground plane. In addition, due to the antiresonant behavior of the complementary split-ring resonator structures, the antenna exhibits a notch-band characteristic at 10.7 GHz. A parametric study is performed to provide a detailed understanding of the independent resonance tuning behavior of the antenna. Both simulated and measured results of the proposed antenna are presented, which are in good agreement. The proposed antenna shows three operating bands in the X-band including (with absolute and relative bandwidths) 9.4–9.7 GHz (300 MHz, 3.14%), 10.3–10.6 GHz (300 MHz, 2.86%), and 11.05–11.32 GHz (297 MHz, 2.66%). In addition to that, a notched band of 10.6–11.05 GHz is introduced to exclude operation in the frequency bands of radiometric observation systems (10.6–10.7 GHz). To the best of our knowledge, this work is unique in its combination of independent tuning of three frequency bands of operation with single-layer implementation in the X-band. Such a structure provides additional degrees of freedom to the antenna design, customizing operation in the required bands while avoiding operation in other bands.

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24

Rosenman, Leonard D. "Hartmann's operation." American Journal of Surgery 168, no. 3 (September 1994): 283–84. http://dx.doi.org/10.1016/s0002-9610(05)80203-x.

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25

Lorenz, Aron, Lothar Peukert, Tony Evans, and Peter Salmon. "Operation: Automation." Metal Finishing 106, no. 11 (November 2008): 14–21. http://dx.doi.org/10.1016/s0026-0576(08)00041-x.

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26

Suttrop, W., V. Mertens, H. Murmann, J. Neuhauser, J. Schweinzer, and ASDEX-Upgrade Team. "Operational limits for high edge density H-mode tokamak operation." Journal of Nuclear Materials 266-269 (March 1999): 118–23. http://dx.doi.org/10.1016/s0022-3115(98)00573-x.

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27

Bordbar, Hashem, Young Bae Jun, and Seok-Zun Song. "Homomorphic Image and Inverse Image of Weak Closure Operations on Ideals of BCK-Algebras." Mathematics 8, no. 4 (April 11, 2020): 567. http://dx.doi.org/10.3390/math8040567.

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We introduce the notions of meet, semi-prime, and prime weak closure operations. Using homomorphism of BCK-algebras φ : X → Y , we show that every epimorphic image of a non-zeromeet element is also non-zeromeet and, for mapping c l Y : I ( Y ) → I ( Y ) , we define a map c l Y ← on I ( X ) by A ↦ φ − 1 ( φ ( A ) c l Y ) . We prove that, if “ c l Y ” is a weak closure operation (respectively, semi-prime and meet) on I ( Y ) , then so is “ c l Y ← ” on I ( X ) . In addition, for mapping c l X : I ( X ) → I ( X ) , we define a map c l X → on I ( Y ) as follows: B ↦ φ ( φ − 1 ( B ) c l X ) . We show that, if “ c l X ” is a weak closure operation (respectively, semi-prime and meet) on I ( X ) , then so is “ c l X → ” on I ( Y ) .

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28

Haden, R. M., and P. V. Scott. "Second and subsequent surgical operations within 12 months of a first operation." Anaesthesia 59, no. 4 (March 16, 2004): 332–36. http://dx.doi.org/10.1111/j.1365-2044.2004.03677.x.

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29

Chajda, Ivan, and Helmut Länger. "Left residuated lattices induced by lattices with a unary operation." Soft Computing 24, no. 2 (November 1, 2019): 723–29. http://dx.doi.org/10.1007/s00500-019-04461-x.

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Abstract In a previous paper, the authors defined two binary term operations in orthomodular lattices such that an orthomodular lattice can be organized by means of them into a left residuated lattice. It is a natural question if these operations serve in this way also for more general lattices than the orthomodular ones. In our present paper, we involve two conditions formulated as simple identities in two variables under which this is really the case. Hence, we obtain a variety of lattices with a unary operation which contains exactly those lattices with a unary operation which can be converted into a left residuated lattice by use of the above mentioned operations. It turns out that every lattice in this variety is in fact a bounded one and the unary operation is a complementation. Finally, we use a similar technique by using simpler terms and identities motivated by Boolean algebras.

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30

Tono, Kensuke, Toru Hara, Makina Yabashi, and Hitoshi Tanaka. "Multiple-beamline operation of SACLA." Journal of Synchrotron Radiation 26, no. 2 (February 22, 2019): 595–602. http://dx.doi.org/10.1107/s1600577519001607.

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The SPring-8 Ångstrom Compact free-electron LAser (SACLA) began parallel operation of three beamlines (BL1–3) in autumn 2017 to increase the user beam time of the X-ray free-electron laser. The success of the multiple-beamline operation is based on two technological achievements: (i) the fast switching operation of the SACLA main linear accelerator, which provides BL2 and BL3 with pulse-by-pulse electron beams, and (ii) the relocation and upgrade of the SPring-8 Compact SASE Source for BL1, for the generation of a soft X-ray free-electron laser. Moreover, the photon beamlines and experimental stations were upgraded to facilitate concurrent user experiments at the three beamlines and accommodate more advanced experiments.

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31

Turner, Graeme. "After the Operation." Clinical and Experimental Ophthalmology 33, no. 6 (December 2005): 658. http://dx.doi.org/10.1111/j.1442-9071.2005.01113.x.

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32

Graydon, Oliver. "Single-mode operation." Nature Photonics 12, no. 8 (July 27, 2018): 443. http://dx.doi.org/10.1038/s41566-018-0229-x.

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33

Meyer, Klaus E. "Foreign operation methods." Journal of International Business Studies 50, no. 3 (November 27, 2018): 450–53. http://dx.doi.org/10.1057/s41267-018-0197-x.

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34

Klamroth, R. "Operation und Hämophilie." Der Anaesthesist 63, no. 1 (January 2014): 5. http://dx.doi.org/10.1007/s00101-013-2271-x.

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35

Keller, Anne, and Alicia Brenneman. "Operation Kangaroo Care." Journal of Obstetric, Gynecologic & Neonatal Nursing 41 (June 2012): S37. http://dx.doi.org/10.1111/j.1552-6909.2012.01360_11.x.

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36

Zhou, San Yuan, Shuang Chang, and Chen Liang. "The Research on Simulation of Storage Operation System Based on Flexsim." Applied Mechanics and Materials 263-266 (December 2012): 1549–52. http://dx.doi.org/10.4028/www.scientific.net/amm.263-266.1549.

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The warehouse is the major place for storing the goods in the logistics operations. And the operation flow of warehouse has a direct impact on the logistics efficiency and benefit. Otherwise, logistics simulation technologies have been widely used in the field of logistics. It verified the validity and rationality of the logistics planning in a certain extent. This article use Flexsim as the simulation’s tool, and take X Company as the research object. And we used Flexsim to establish the simulation model of X company’s warehouse. According to simulation results, we analyze the bottleneck problem in the warehouse operation. Then put forward some suggestions for improvement and optimization.

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37

Koubek, V., and J. Sichler. "Universal varieties of distributive double p-algebras." Glasgow Mathematical Journal 26, no. 2 (July 1985): 121–31. http://dx.doi.org/10.1017/s0017089500005887.

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An algebra (L; ν, ^, *, +, 0, 1) of type (2, 2, 1, 1, 0, 0) is a distributive double p-algebra provided (L; ν, ^, 0, 1) is a distributive (0, l)-lattice, and *, + are unary operations of pseudocomplementation, or dual pseudocomplementation, respectively: the operation * satisfies x<a* if and only if x^a = 0, while x>a+ holds if and only if xνa = 1.

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38

Razzak, T., S. Hwang, A. Coleman, S. Bajaj, H. Xue, Y. Zhang, Z. Jamal‐Eddine, et al. "RF operation in graded Al x Ga 1− x N ( x = 0.65 to 0.82) channel transistors." Electronics Letters 54, no. 23 (November 2018): 1351–53. http://dx.doi.org/10.1049/el.2018.6897.

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39

Ivashchuk, O. O., A. V. Shchagin, A. S. Kubankin, A. A. Klenin, A. N. Oleinik, Yu V. Grigor’ev, A. S. Kumskov, and E. V. Bolotov. "X-Ray Generation during Piezoelectric Lighter Operation in Vacuum." Glass and Ceramics 77, no. 11-12 (March 2021): 469–72. http://dx.doi.org/10.1007/s10717-021-00334-8.

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40

LAQUA, Heinrich Peter. "Steady State ECRH Operation at the W7-X Stellarator." Plasma and Fusion Research 16 (May 24, 2021): 2402058. http://dx.doi.org/10.1585/pfr.16.2402058.

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41

Kowalsky, Daniel. "Operation X: Soviet Russia and the Spanish Civil War." Bulletin of Spanish Studies 91, no. 1-2 (January 24, 2014): 159–78. http://dx.doi.org/10.1080/14753820.2013.868655.

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42

Kalachnikov, M. P., P. V. Nickles, M. Schnürer, W. Sandner, V. N. Shlyaptsev, C. Danson, D. Neely, et al. "Saturated operation of a transient collisional x-ray laser." Physical Review A 57, no. 6 (June 1, 1998): 4778–83. http://dx.doi.org/10.1103/physreva.57.4778.

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43

Pedersen, Thomas Sunn, Ralf König, Maciej Krychowiak, Marcin Jakubowski, Jürgen Baldzuhn, Sergey Bozhenkov, Golo Fuchert, et al. "First results from divertor operation in Wendelstein 7-X." Plasma Physics and Controlled Fusion 61, no. 1 (November 27, 2018): 014035. http://dx.doi.org/10.1088/1361-6587/aaec25.

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44

Klinger, T., T. Andreeva, S. Bozhenkov, C. Brandt, R. Burhenn, B. Buttenschön, G. Fuchert, et al. "Overview of first Wendelstein 7-X high-performance operation." Nuclear Fusion 59, no. 11 (June 5, 2019): 112004. http://dx.doi.org/10.1088/1741-4326/ab03a7.

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Würges, J., A. M. Rostomyan, W. Graeff, and G. Materlik. "Optimization and operation of a BBB X-ray interferometer." Journal of Applied Crystallography 32, no. 6 (December 1, 1999): 1152–56. http://dx.doi.org/10.1107/s002188989901184x.

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Abstract:

A special arrangement of Bonse–Hart X-ray interferometers, which uses the Bragg geometry of X-ray diffraction for the beam splitter, mirrors and the analyser (so-called BBB interferometers), has been designed and characterized both computationally and experimentally in different versions. The design includes wavelength-dependent optimization of transmission through the lamella, which is used both for beam splitting and for recombination. For characterization of the function of the instrument, interference patterns were evaluated from BBB interferograms, as well as from LLL (employing the Laue geometry for coherent beam splitting, reflecting and analysing) topograms and from interferograms resulting from a new combined geometrical layout. The influence of gravitation on the horizontally running diffraction planes was visible as a system of fringes in the interferograms, resulting from bending of the lamella under its own weight.

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Zhang, Yong‐Hang. "Continuous wave operation of InAs/InAsxSb1−x midinfrared lasers." Applied Physics Letters 66, no. 2 (January 9, 1995): 118–20. http://dx.doi.org/10.1063/1.113535.

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Neuner, Ulrich, Bertram Brucker, Antonio Cardella, Michael Endler, Klaus Grosser, Dag Hathiramani, Matthias Hirsch, et al. "Preparing diagnostics for long pulse operation at W7-X." Fusion Engineering and Design 87, no. 5-6 (August 2012): 392–94. http://dx.doi.org/10.1016/j.fusengdes.2011.11.004.

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O'Grady, Peter, and Ramadurai Seshadri. "Operation of X-Cell — an intelligent cell control system." Computer Integrated Manufacturing Systems 5, no. 1 (February 1992): 21–30. http://dx.doi.org/10.1016/0951-5240(92)90015-5.

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Bosch, H. S., A. Dinklage, T. Klinger, R. Wolf, and Wendelstein -X Team. "Physics Programme for Initial Operation of Wendelstein 7-X." Contributions to Plasma Physics 50, no. 8 (March 31, 2010): 687–94. http://dx.doi.org/10.1002/ctpp.201010101.

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Omanovic, Andyn, Norbert Zsiga, Patrik Soltic, and Christopher Onder. "Increased Internal Combustion Engine Efficiency with Optimized Valve Timings in Extended Stroke Operation." Energies 14, no. 10 (May 11, 2021): 2750. http://dx.doi.org/10.3390/en14102750.

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Abstract:

Spark-ignited internal combustion engines are known to exhibit a decreased brake efficiency in part-load operation. Similarly to cylinder deactivation, the x-stroke operation presented in this paper is an adjustable form of skip-cycle operation. It is an effective measure to increase the efficiency of an internal combustion engine, which has to be equipped with a variable valve train to enable this feature. This paper presents an optimization procedure for the exhaust valve timings applicable to any valid stroke operation number greater than four. In the first part, the gas spring operation, during which all gas exchange valves are closed, is explained, as well as how it affects the indicated efficiency and the blow-by mass flow. In the second part, a simulation model with variable valve timings, parameterized with measurement data obtained on the engine test, is used to find the optimal valve timings. We show that in 12-stroke operation and with a cylinder load of 5 Nm, an indicated efficiency of 34.3% is achieved. Preloading the gas spring with residual gas prevents oil suction and thus helps to reduce hydrocarbon emissions. Measurements of load variations in 4-, 8-, and 12-stroke operations show that by applying an x-stroke operation, the indicated efficiency remains high and the center of combustion remains optimal in the range of significantly lower torque outputs.

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