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Journal articles on the topic 'Complex form parts'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Xiao, Xiao Feng, Qiong Xue, Ke Feng Xiao, and Xiao Lan Hu. "LFC Mold Development of Complex Parts with Free-Form Surface." Advanced Materials Research 228-229 (April 2011): 532–36. http://dx.doi.org/10.4028/www.scientific.net/amr.228-229.532.

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This paper has analyzed key techniques in foam mold development for Lost Foam Casting for different types of casting, which are complex box, pipe faucet junction ,wear-resisting and refractory alloy steel casting, Focused on complex castings with free-form surface, key points during whole technical route, which includes three-dimensional modeling, foamed pattern design, mold design and CNC program, have been discussed by utilizing modeling & manufacturing module on Unigraphics. Because of its perfect free-form surface functions and plentiful toolpath operations in CNC programming, Foam mol

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2

Drobotov, Alexey, Artem Avdeev, and Andrey Shvets. "Magnetohydrodynamic pump application in complex form aluminum parts additive manufacturing." MATEC Web of Conferences 224 (2018): 01076. http://dx.doi.org/10.1051/matecconf/201822401076.

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A review of Drop-on-Demand additive manufacturing methods was held. A method of complex forms aluminum parts production through the application of magnetohydrodynamic pump and 5 axis manufacturing process was proposed. 5 axis 3D printer assembly was shown. A few operation modes were proposed for such 3D printer and a method for fill lines paths calculating, needed for G-code automatic generation, was established. The algorithm for calculating printhead moving trajectory in the cylindrical parts manufacture mode was shown.

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Karpenko, V. M., A. V. Granovskii, and P. A. Gavrish. "Plasma-arc spray gun for surfacing parts of complex form." Chemical and Petroleum Engineering 25, no. 8 (1989): 474–75. http://dx.doi.org/10.1007/bf01156697.

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4

Ren, Yong Xin, Zhong De Shan, Feng Liu, Zhao Xian Gu, Chang Hao Chi, and Jing Zhang. "Five-Axis CNC Processing Technology to Form Expendable Patterns." Advanced Materials Research 971-973 (June 2014): 306–9. http://dx.doi.org/10.4028/www.scientific.net/amr.971-973.306.

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During the casting of expendable pattern complex parts, the pattern accuracy is the key in determining the quality of expendable pattern. The paper conducts research on 5-axis CNC processing technology of multiple axes rotary spindle head expendable pattern, which is applied in processing experiments of complex parts expendable pattern. The results show that it is feasible to directly process expendable pattern with 5-axis CNC machine technology, which will have good promotional value.

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5

Renz, Graham. "Hylomorphism and Complex Properties." Metaphysica 21, no. 2 (2020): 179–97. http://dx.doi.org/10.1515/mp-2019-0003.

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AbstractHylomorphism is the Aristotelian theory according to which objects are composites of form and matter. Form is what unifies the various parts of an object – the matter – into a cohesive whole. Some contemporary hylomorphists argue their theory applies beyond the realm of concreta, and that it explains the unity of various abstract entities. Not everyone agrees. Recent criticism alleges that hylomorphism fails to explain the unity of certain abstract entities, namely, complex properties – properties with other properties as proper parts. Here, I both respond to this criticism and show th

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Campos, Rafael G., and Marisol L. Calderón. "Approximate Closed-Form Formulas for the Zeros of the Bessel Polynomials." International Journal of Mathematics and Mathematical Sciences 2012 (2012): 1–10. http://dx.doi.org/10.1155/2012/873078.

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We find approximate expressionsx̃(k,n,a)andỹ(k,n,a)for the real and imaginary parts of thekth zerozk=xk+iykof the Bessel polynomialyn(x;a). To obtain these closed-form formulas we use the fact that the points of well-defined curves in the complex plane are limit points of the zeros of the normalized Bessel polynomials. Thus, these zeros are first computed numerically through an implementation of the electrostatic interpretation formulas and then, a fit to the real and imaginary parts as functions ofk,nandais obtained. It is shown that the resulting complex numberx̃(k,n,a)+iỹ(k,n,a)isO(1/n2)-

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7

De Little, Alex. "Georgia Rodgers, Line of parts. hcmf//, 2019." Tempo 74, no. 292 (2020): 86. http://dx.doi.org/10.1017/s0040298219001311.

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As I enter Georgia Rodgers’ Line of parts, I am struck by the instrument for which she has composed: three levitating circles of loudspeakers, one above the other, that form a cylinder of sound rising up above my head. They are housed inside a space-age enclosure, clad in complex geometric foam shapes; a circular array of chairs facing outwards sits in centre of this space, inviting an independent and reflective – rather than communal – listening experience. This space wraps you in it: a womb-like architecture of sonic potential.

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Zalyubovskyi, M. G., I. V. Panasyuk, Y. I. Smirnov, Y. V. Klaptsov, and V. V. Malyshev. "EXPERIMENTAL INVESTIGATION OF THE HANDLING PROCESS OF POLYMERIC UNITS IN A MACHINE WITH A COMPACTED SPACE MOVEMENT OF WORKING CAPACITY." Bulletin of the Kyiv National University of Technologies and Design. Technical Science Series 132, no. 2 (2019): 24–32. http://dx.doi.org/10.30857/1813-6796.2019.2.2.

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An experimental determination of the main technological parameters of polishing small polymer parts with a free abrasive in the form of granules in containers that perform a complex spatial movement. Methodology. An experimental investigation of the processing of small polymeric parts by abrasive in the form of free granules in a machine whose working capacities performs a complex spatial movement to determine rational polishing conditions.

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9

ZAÏMI, TOUFIK. "ON REAL PARTS OF POWERS OF COMPLEX PISOT NUMBERS." Bulletin of the Australian Mathematical Society 94, no. 2 (2016): 245–53. http://dx.doi.org/10.1017/s0004972716000125.

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We prove that a nonreal algebraic number $\unicode[STIX]{x1D703}$ with modulus greater than $1$ is a complex Pisot number if and only if there is a nonzero complex number $\unicode[STIX]{x1D706}$ such that the sequence of fractional parts $(\{\Re (\unicode[STIX]{x1D706}\unicode[STIX]{x1D703}^{n})\})_{n\in \mathbb{N}}$ has a finite number of limit points. Also, we characterise those complex Pisot numbers $\unicode[STIX]{x1D703}$ for which there is a convergent sequence of the form $(\{\Re (\unicode[STIX]{x1D706}\unicode[STIX]{x1D703}^{n})\})_{n\in \mathbb{N}}$ for some $\unicode[STIX]{x1D706}\i

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10

Kudryashov, E. A., I. М. Smirnov, and D. V. Grishin. "TECHNOLOGICAL FEATURES OF PARTS WITH COMPLEX SURFACES MACHINING." Proceedings of the Southwest State University 22, no. 1 (2018): 71–77. http://dx.doi.org/10.21869/2223-1560-2018-22-1-71-77.

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The complexity of the technology of machining by cutting complex surfaces of parts heterogeneous in terms of physical and mechanical properties and different machinability, and, in particular, of metals (aluminum) and plastics (polyurethane and polyethylene), which form an assembly component, a section of the container-type countermine system is defined in the paper. The description of technological process operations of machining of a basic detail of an item, the body, is given. Features, the presence of which creates not only difficulties in the implementation of the technological process of

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11

Liu, Yong, Di Zhu, Yong Bin Zeng, Shao Fu Huang, and Hong Bing Yu. "Experimental Investigation on Electrochemical Micro Machining of Complex Shape Parts." Key Engineering Materials 419-420 (October 2009): 425–28. http://dx.doi.org/10.4028/www.scientific.net/kem.419-420.425.

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This paper introduces a method of machining free-form basis-NURBS curve into the field of micromachining. For achieving the optimization of the EMM (Electrochemical MicroMachining) process parameters, sets of experiments have been carried out to investigate the influence of some of the predominant electrochemical process parameters such as machining voltage, pulse on time, feed rate, and electrode peak shape on machining accuracy and quality. A complex shape with structures of several micrometers has been successfully obtained.

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Eisenhauer, Charlotte M., and Klaus Drechsler. "Integration of excess material into a semi-finished product to form complex composite parts." Textile Research Journal 87, no. 19 (2016): 2420–31. http://dx.doi.org/10.1177/0040517516671119.

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With a view to minimizing production costs of carbon fiber-reinforced plastics (CFRP), a contoured, variable-axial reinforcing fabric, so-called “CoCo – contoured composites,” has been developed for complex, primary structural components,. Thereby, scrap in the production of lightweight high-performance components out of CFRP is reduced. Furthermore, components can be designed in an anisotropic way, thus lighter and adapted to the fiber properties. Moreover, production speed will be by far higher than that of conventional variable-axial textiles, like tailored fiber placement and fiber patch p

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13

Kudryashov, E. A., I. S. Krylov, and N. A. Khizhnyak. "RATIONAL CONDITIONS OF COMPLEX SURFACES OF PARTS." Proceedings of the Southwest State University 22, no. 1 (2018): 34–44. http://dx.doi.org/10.21869/2223-1560-2018-22-1-34-44.

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An important scientific and practical task is to increase the efficiency of designing technological processes for manufacturing parts of a complex form. The labour intensity of design work is connected with a wide variety of shapes and sizes of products created, the use of a wide range of structural materials and their combinations, presence on the machined surfaces of secondary holes of different sizes and locations, grooves, flats, recesses, and other elements that break the contour of the base surface of the workpiece and cause intermittence of the turning process. The purpose of this work

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Korotkov, Volodymyr. "INCREASING THE EFFICIENCY OF METAL PROCESSING ON CNC MACHINES OF PARTS OF COMPLEX SPATIAL FORM." Collection of scholarly papers of Dniprovsk State Technical University (Technical Sciences) 1, no. 44 (2024): 52–57. http://dx.doi.org/10.31319/2519-2884.44.2024.6.

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Parts with aerodynamic or hydrodynamic properties, which have smooth surfaces of variable curvature, are widely used in the aviation and rocket and space industries, shipbuilding, manufacturing of turbines, blades of wind generators, etc. During their construction, modern information and computer technologies are used, complex calculations are performed using specific mathematical methods. Representation of such surfaces on drawings, in comparison with details of the usual form, requires the use of methods difficult for visual representation, for example, the description of surfaces with a set

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15

Dubnitskiy, Valeriy, Anatolii Kobylin, Oleg Kobylin, Yuriy Kushneruk, and Iurii Sheviakov. "Calculation of the value of the functions of the complex variable with by an interval argument, we will design in the hyperbolic form." Advanced Information Systems 6, no. 3 (2022): 83–91. http://dx.doi.org/10.20998/2522-9052.2022.3.11.

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Information about the interval numbers presented in the classical form, the CENTER-RADIUS system and in the hyperbolic form is given. Rules for the transition from one of the forms of representation of interval numbers to others are proposed. Information is given on complex interval numbers, the real and imaginary parts of which are presented in hyperbolic form. The rules for performing basic arithmetic operations with these numbers and the calculation of interval values of power, exponential, logarithmic functions, direct and inverse trigonometric functions, direct and inverse hyperbolic func

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16

Usman, S., I. Abdullahi, B. G. Agaie, N. A. Muhammad, H. B. Yusuf, and K. G. Ibrahim. "Application of Laplace transforms technique in solving second order Complex Differential Equations." Dutse Journal of Pure and Applied Sciences 7, no. 4a (2022): 167–73. http://dx.doi.org/10.4314/dujopas.v7i4a.17.

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In this research work Complex Differential Equations of order two was studied and then solved using the Laplace transform technique. The Complex Differential Equations were separated into the real and imaginary parts and an expression for the solution form of the complex differential equation of order two with constant coefficient was obtained. The solution to the problems were then obtained using Laplace technique. The real and imaginary parts of the solution were further obtained using the inverse Laplace transform giving the results for the problem, and also illustrative examples are includ

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17

Lv, Qiu Juan, Su Ping Fang, You Jun Wang, and Zhen Zhang. "Extraction Profile Feature Points of Complex Parts Based on Genetic Algorithms." Advanced Materials Research 102-104 (March 2010): 116–20. http://dx.doi.org/10.4028/www.scientific.net/amr.102-104.116.

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The structures of mechanical parts are becoming more and more complex with the continuous expansion of the design industry. In this article, the profile points are reduced first according to the angle and distance threshold. Based on the minimal integral square error (ISE), Genetic algorithms (GAs) are then used with line segments and circular segments as the primitive form cell so that the profile feature points can be identified and extracted for the complex parts. It is shown that the genetic algorithms are successful for complex parts, although for a large amount of points, computation tim

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18

Ruzic, Vladislava. "A form of the grammaticalisation of a sentence meaning." Juznoslovenski filolog, no. 64 (2008): 419–35. http://dx.doi.org/10.2298/jfi0864419r.

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This research conducted on the examples from the contemporary Serbian language classifies obligatory pronominal phrases which together with the conjuction da introduce a complement clause. Further the research identifies groups of verbs in the function of a main predicate that have a specific grammatical feature to combine with certain forms of a pronominal word. This makes it possible to see which semantical relations exist among the parts of such complex sentences.

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19

Abdullabekova, U. B. "MONOFINITE COMPLEX CLAUSE IN THE KUMYK LANGUAGE." Russian Journal of Multilingualism and Education 12 (December 25, 2020): 28–36. http://dx.doi.org/10.35634/2500-0748-2020-12-28-36.

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This article aims to analyze the monofinite complex clause in the Kumyk language in terms of structure. The originality of the research lies in the fact that the article proposes a different approach than in Russian studies on the analysis of the syntactic structure of a sentence. The relevance of the research is determined by the role of the sentence structure and methods of its study in linguistics in general. The main method used in the study is the method of syntactic modeling, which is used in terms of functions (members of a sentence), in terms of morphological forms of words and the sem

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20

Abdullabekova, U. B. "MONOFINITE COMPLEX CLAUSE IN THE KUMYK LANGUAGE." Russian Journal of Multilingualism and Education 12 (December 25, 2020): 28–36. http://dx.doi.org/10.35634/2500-0748-2020-12-28-36.

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This article aims to analyze the monofinite complex clause in the Kumyk language in terms of structure. The originality of the research lies in the fact that the article proposes a different approach than in Russian studies on the analysis of the syntactic structure of a sentence. The relevance of the research is determined by the role of the sentence structure and methods of its study in linguistics in general. The main method used in the study is the method of syntactic modeling, which is used in terms of functions (members of a sentence), in terms of morphological forms of words and the sem

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21

Hai, Ha Thanh. "Kinematic Modelling of a Robot in Form-shaping Milling Complex Surfaces." European Journal of Engineering Research and Science 4, no. 11 (2019): 26–31. http://dx.doi.org/10.24018/ejers.2019.4.11.1619.

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This paper presents kinematic modelling of a robot in form-shaping milling complex surfaces, illustrated applying in form-shaping milling a molding prototype. The robot have 6 degrees of freedom, with a cutter attaching to the end of the end-effector. The workpiece is fixed on the clamping table. Using robot in form-shaping machining parts enables increasing the flexibility of selecting machining observation area, increasing capability of selecting engineering manipulation, increasing quality and machining efficiency. In machining process, because of the cutter moving along the machining traje

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Hai, Ha Thanh. "Kinematic Modelling of a Robot in Form-shaping Milling Complex Surfaces." European Journal of Engineering and Technology Research 4, no. 11 (2019): 26–31. http://dx.doi.org/10.24018/ejeng.2019.4.11.1619.

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This paper presents kinematic modelling of a robot in form-shaping milling complex surfaces, illustrated applying in form-shaping milling a molding prototype. The robot have 6 degrees of freedom, with a cutter attaching to the end of the end-effector. The workpiece is fixed on the clamping table. Using robot in form-shaping machining parts enables increasing the flexibility of selecting machining observation area, increasing capability of selecting engineering manipulation, increasing quality and machining efficiency. In machining process, because of the cutter moving along the machining traje

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23

Zelinsky, S., and A. Tkach. "AN ALTERNATIVE APPROACH TO CONTROL THE SHAPING OF PARTS WITH SPATIALLY COMPLEX SURFACES." Odes’kyi Politechnichnyi Universytet Pratsi 1, no. 65 (2022): 30–39. http://dx.doi.org/10.15276/opu.1.65.2022.03.

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In modern mechanical engineering, the number of parts with spatially complex surfaces is growing, the shape of which is determined analytically according to certain criteria. They are most widely used in the energy, aviation, tool industries (turbine blades, unicycles). With the current practice of processing such parts on CNC machines, when developing control programs, the analytically calculated shape of the surfaces is replaced by an approximate graphical model, which is used to calculate tool trajectories. This practice is due to the historically existing in the 1970-90s the capabilities o

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24

Bazir, Rizkyatul, Robby Hidayat, and Tutut Pristiati. "PILU MEMBIRU MUSICAL FORM ANALYSIS BY KUNTO AJI." JADECS (Journal of Art, Design, Art Education & Cultural Studies) 7, no. 2 (2022): 205. http://dx.doi.org/10.17977/um037v7i22022p205-217.

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Musical form is the composition of music in a composition of motifs, themes, and phrases. Musical forms according to the number of sentences is divided into three types, namely one-part musical form, two-part musical form, and three-part musical form. This study aims to describe the musical form of the song "Pilu Membiru" by Kunto Aji. This research uses a qualitative descriptive research method. The data in the research were obtained using observation, interviews, and documentation by testing the validity of the data using triangulation. The results of this research indicate that the song "Pi

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25

Шаповалова, Т. Е. "Axiological marks in the grammatical form of a literary text." Russkii iazyk za rubezhom, no. 2(297) (May 10, 2023): 34–38. http://dx.doi.org/10.37632/pi.2023.297.2.007.

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В статье рассматриваются сложные фразеологизированные конструкции с временнóй семантикой, в которых строевые лексические элементы выступают как аксиологические знаки грамматической формы художественного текста. Они уточняют и грамматикализуют выражаемые в предложении отношения. Доказывается, что речевое наполнение частей сложного предложения учитывается при выявлении модально-временнóго значения и дополнительных грамматических оттенков конструкции. The article deals with complex phraseologized constructions with temporal semantics, in which structural lexical elements act as axiological marks

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Alisherovna, Nematova Niginabonu. "The phenomenon of polypredicativity in complex syntactic constructions of Chinese and Uzbek languages." American Journal of Philological Sciences 5, no. 2 (2025): 41–44. https://doi.org/10.37547/ajps/volume05issue02-12.

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The phenomenon of predicativity has been interpreted in linguistics for many years. However, despite this, the opinions expressed in this area are not general. In most works on grammar, predication is understood as a participle, and therefore it is emphasized that this phenomenon takes place only within a sentence. In recent decades, scientists have been paying increasing attention to polypredicative sentences. The term "polypredicative sentence" has become established both in theoretical works and in teaching practice. A polypredicative construction consists of predicative units that have the

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Rafiee Rad, Siavash. "Ellipsis resolution in Persian complex predicates." Linguistic Review 36, no. 2 (2019): 285–315. http://dx.doi.org/10.1515/tlr-2018-2013.

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Abstract The study of Ellipsis has been of special interest to scholars of linguistics. One reason for this interest is the fact that the meaning of a sentence with ellipsis cannot purely be based on its antecedent. Elliptical constructions in the literature are categorised according to their syntactic structures. This article intends to discuss ellipsis in Persian Complex predicate constructions in which parts of the verbal construction along with some of its arguments are elided. We will argue that ellipsis resolution in such constructions is licensed due to the logical form of such verbal c

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Fomin, Vasiliy I. "About a complex operator resolvent." Russian Universities Reports. Mathematics, no. 138 (2022): 183–97. http://dx.doi.org/10.20310/2686-9667-2022-27-138-183-197.

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A normed algebra of bounded linear complex operators acting in a complex normed space consisting of elements of the Cartesian square of a real Banach space is constructed. In this algebra, it is singled out a set of operators for each of which the real and imaginary parts commute with each other. It is proved that in this set, any operator for which the sum of squares of its real and imaginary parts is a continuously invertible operator, is invertible itself; a formula for the inverse operator is found. For an operator from the indicated set, the form of its regular points is investigated: con

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29

Fys, Mykhailo, Roman Kvit, and Tetyana Salo. "On some properties of determinants with complex elements and their practical application." Physico-mathematical modelling and informational technologies, no. 31 (July 14, 2021): 67–77. http://dx.doi.org/10.15407/fmmit2021.31.067.

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The formulas presented in this paper make it possible to select the real and imaginary part of the determinant value of the n -th order complex quantity, greatly simplifying the process of its deployment. Moreover, its module is given by the determinant of the 2n -th order, the elements of which are the real and imaginary parts of complex numbers. This makes it possible to analyze analytically the process described using determinants with complex numbers. The real and imaginary parts are also determined by the sum of determinants already with n rows and columns, the elements of which make up c

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Voicu, Adrian Catalin, Ion Gheorghe Gheorghe, Liliana Laura Badita, and Adriana Cirstoiu. "3D Measuring of Complex Automotive Parts by Multiple Laser Scanning." Applied Mechanics and Materials 371 (August 2013): 519–23. http://dx.doi.org/10.4028/www.scientific.net/amm.371.519.

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Three-dimensional scanning is available for more than 15 years, however there are few that have heard of it and as few people know the applications of this technology. 3D scanning is also known as 3D digitizing, the name coming from the fact that this is a process that uses a contact or non-contact digitizing probe to capture the objects form and recreate them in a virtual workspace through a very dense network of points (xyz) as a 3D graph representation. Based on this information have been developed many new applications in many fields - computer games industry, prosthetics or forensic medic

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Pustovoit, Viktor N., Yuri V. Dolgachev, and Yu M. Dombrovskii. "The Technology of Distortion-Free Quenching in a Magnetic Field of Thin-Walled Details of the Ring Form." Solid State Phenomena 316 (April 2021): 233–39. http://dx.doi.org/10.4028/www.scientific.net/ssp.316.233.

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During heat treatment of machine parts and tools, besides the usual task of ensuring a high complex of mechanical and operational properties, there is a problem of distortion of products in the process of heat treatment and the need for editing operations (which are carried out manually and require significant labor costs). The known methods do not solve the problem of removing distortion for thin-walled parts of the ring shape completely. This paper shows the technical possibility of using the energy of a constant magnetic field for the "internal" straightening of products during heat treatme

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Bhandari, Narendra. "Evaluation of the real parts of polylogarithm expressions containing complex arguments via certain logarithmic integrals." Notes on Number Theory and Discrete Mathematics 30, no. 3 (2024): 613–33. http://dx.doi.org/10.7546/nntdm.2024.30.3.613-633.

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We consider a polylogarithm expression containing complex arguments, namely $$\mathcal{P}_{{\pm}}(n)=\Re\left(\mathrm{Li}_n\left(\frac{1\pm i}{2}\right)\right).$$ The central notion of the present paper is to evaluate the real parts of $\mathcal{P}_{\pm}(n)$ for first four orders, specifically $n=1, 2, 3,$ and $4,$ by constructing certain logarithmic integrals. To extract the real parts, we demonstrate an organized approach, and the proofs solely rely on the calculation of the logarithmic integrals. Additionally, we present a potential closed form of $\mathcal{P}_{{\pm}}(5).$

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Zalyubovskyi, М. G., I. V. Panasyuk, Y. I. Smirnov, O. O. Kuznetsova, and V. V. Malyshev. "ANALYTICAL DETERMINATION OF THE TIME OF HANDLING PROCESS OF POLYMERIC PARTS IN A MACHINE WITH A COMPLEX MOVEMENT OF WORKING CONTAINER." Bulletin of the Kyiv National University of Technologies and Design. Technical Science Series 134, no. 3 (2019): 9–17. http://dx.doi.org/10.30857/1813-6796.2019.3.1.

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An analytical determination of the main technological parameters of polishing small polymer parts with a free abrasive in the form of granules in containers that perform a complex spatial movement, determination of the time of handling process of polymeric details in a machine with a complex movement of working container

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XIAO, ZHIYU, LIANG FANG, SHUHUA LUO, and HONGYUN GAO. "STUDY ON COMPLEX SHAPE POWDER METALLURGY IRON-BASED PARTS PREPARED BY WARM FLOW COMPACTION." Journal of Advanced Manufacturing Systems 07, no. 02 (2008): 261–65. http://dx.doi.org/10.1142/s0219686708001565.

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Warm flow compaction based on warm compaction and metal injection molding is a new net-shape manufacturing technology which can produce complex powder metallurgy (PM) parts by conventional axial-pressing. Warm flow compaction makes use of improved flowability of powder binder mixture in an appropriate temperature to form complex PM-parts, like cross-shaped parts. The effect of the combination of coarse and fine powders on apparent density and flowability as well as the effect of different pressing speed and temperature on lateral flow capacity of iron-based powders were investigated. Results s

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Voicu, Adrian Catalin, and Gheorghe I. Gheorghe. "Complex 3D Measuring by Multiple Laser Scanning of Automotive Parts." Advanced Materials Research 837 (November 2013): 511–16. http://dx.doi.org/10.4028/www.scientific.net/amr.837.511.

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For over 20 years the term"three-dimensional scan"(3D) showed the world the possibilities of virtual design, simulation, or reverse engineering. 3D scanning is also known as 3D digitizing, the name coming from the fact that this is a process that uses a contact or non-contact digitizing probe to capture the objects form and recreate them in a virtual workspace through a very dense network of points (xyz) as a 3D graph representation. Until recently, digitization was limited by the speed of the scan head and the correct choice of the probing system, type of scanned piece and budget for the purc

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Kunz, Holger, Christian Löchte, Franz Dietrich, et al. "Novel form-flexible handling and joining tool for automated preforming." Science and Engineering of Composite Materials 22, no. 2 (2015): 199–213. http://dx.doi.org/10.1515/secm-2013-0326.

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AbstractThe production rates of carbon fiber reinforced plastic (CFRP) parts are rising constantly which in turn drives research to bring a higher level of automation to the manufacturing processes of CFRP. Resin transfer molding (RTM), which is seen as a production method for high volumes, has been accelerated to a high degree. However, complex net-shape preforms are necessary for this process, which are widely manually manufactured. To face these challenges a new concept for the manufacturing of carbon fiber preforms with a form-flexible gripping, draping and joining end-effector is presente

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Richter, Magdalena M., Jaroslaw Poznanski, Anna Zdziarska, et al. "Network of protein interactions within the Drosophila inner kinetochore." Open Biology 6, no. 2 (2016): 150238. http://dx.doi.org/10.1098/rsob.150238.

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The kinetochore provides a physical connection between microtubules and the centromeric regions of chromosomes that is critical for their equitable segregation. The trimeric Mis12 sub-complex of the Drosophila kinetochore binds to the mitotic centromere using CENP-C as a platform. However, knowledge of the precise connections between Mis12 complex components and CENP-C has remained elusive despite the fundamental importance of this part of the cell division machinery. Here, we employ hydrogen–deuterium exchange coupled with mass spectrometry to reveal that Mis12 and Nnf1 form a dimer maintaine

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Oezden, Rauf, Metin Aclan, and Saliba Danho. "Experimental accuracy assessment of different measuring sensors on workpieces with varying properties." MATEC Web of Conferences 178 (2018): 08011. http://dx.doi.org/10.1051/matecconf/201817808011.

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The paper presents an investigation of measuring sensors in the manufacturing metrology. Industrial workpieces with varying surface-, form- and material properties will be investigated. The paper provides also an overview about the accuracy and reproducibility of measuring sensors by usual plastic- and metal parts. The parts will be much more complex in their geometry and the quality requirement are stronger monitored. Thus, the expectations in the manufacturing metrology are set higher.

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Brewster, Billy E., and Anthony C. Bucaro. "Systems-Thinking in Complex Audit Situations." Current Issues in Auditing 14, no. 2 (2020): P40—P46. http://dx.doi.org/10.2308/ciia-19-017.

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SUMMARY This article summarizes three academic studies (Brewster 2011; Brewster 2016; Bucaro 2019) that investigate the effects of a specific form of critical thinking, systems-thinking, on audit judgments. Systems-thinking emphasizes taking a holistic “big picture” perspective and understanding how parts of complex processes interact and function. Collectively, the three studies find that systems-thinking can lead to auditors better understanding the risk of material misstatement through improved risk assessment and information processing. Ultimately, these improvements in critical thinking a

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Ciubotariu, Vlad Andrei, Cosmin Constantin Grigoras, Valentin Zichil, and Ana-Maria Rosu. "An Adaptive Algorithm and Additively Manufactured Punch Used to Form Aluminum Sheet Metal Parts." Materials 16, no. 10 (2023): 3704. http://dx.doi.org/10.3390/ma16103704.

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Self-adaptive mechanisms are gaining momentum in industrial processes. It is understandable that as the complexity increases, the human work must be augmented. Considering this, the authors have developed one such solution for the punch-forming process, using additive manufacturing, i.e., a 3D-printed punch, to draw into shape 6061-T6 aluminum sheets. This paper aims to highlight the topological study used to optimize the punch form shape, the methodology of the 3D printing process, and the material used. For the adaptive algorithm, a complex Python-to-C++ bridge was created. It was necessary

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Yu, Ji Min, Li Zhao, Shang Bo Zhou, Lin Yun Bao, and Fu Long Wang. "Synchronization of Complex Chaotic Nonlinear System with Time-Delay." Applied Mechanics and Materials 687-691 (November 2014): 719–23. http://dx.doi.org/10.4028/www.scientific.net/amm.687-691.719.

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This paper introduces the concept of chaotic systems with complex variables,and add the time-delay part.The idea is that the number of effective state variables can be increased by treating the real and imaginary parts separately.On the basis of the Lyapunov stability theory,a scheme is designed to realize the new form of chaotic synchronization,and we demonstrate how chaotic complex systems with time-delay in a master–slave configuration can be synchronized to a constant scaling matrix.The speed and accuracy of the synchronization are illustrated by means of computer simulation.

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Bencsik, László, and Ambrus Zelei. "Running Form Analysis Based on Impact Dynamics: A Minimally Complex Mechanical Model." Periodica Polytechnica Mechanical Engineering 63, no. 1 (2018): 7–15. http://dx.doi.org/10.3311/ppme.11746.

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Biomechanical models of different complexity are used to understand the dynamics of human running. Low degrees-of-freedom models are appropriate for the prediction of the effect of certain parameter changes. We present a minimally complex biomechanical model which characterizes the effects of foot strike pattern and shank angle on the ground-foot impact intensity, which influences the risk of injuries and energy efficiency.A three segment leg model (thigh, shank and foot) is proposed combined with the mass of the rest of the body parts concentrated in the hip. The ground-foot impact intensity

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Li, Xiao Da, and Xiang Hui Zhan. "Study on the Rapid Progressive Die Design of Sheet Metal with Free Form Surface." Advanced Materials Research 328-330 (September 2011): 828–31. http://dx.doi.org/10.4028/www.scientific.net/amr.328-330.828.

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The structure of progress die is generally more complex and need higher precision, so it needs a longer development cycle, especially for the progress die design of sheet metal with free form surface. In this paper, taking a relatively complex part with free form surface for instance, NX PDW which has highly automated design capabilities was applied to finish the mold design, and the key steps and methods of designing such parts with PDW was put forward. In the design process, the stamping simulation software Dynaform was also applied to simulate the key process to predict forming defects and

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Chen, Ke, Siqi Li, Peng Song, Jianmin Zheng, and Ligang Liu. "mpcMech: Multi-Point Conjugation Mechanisms." ACM Transactions on Graphics 43, no. 6 (2024): 1–14. http://dx.doi.org/10.1145/3687770.

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A mechanism is an assembly of moving parts interconnected by joints to transfer an input motion to a desired output motion. Traditionally, to generate a complex motion, mechanisms are modeled by selecting and combining a number of mechanical parts with simple shapes such as links, gears, and cams. Combining multiple mechanical parts results in a mechanism with an intricate topology, which not only complicates assembly and maintenance but also deteriorates the functionality of generating motions due to accumulation of manufacturing imprecisions. To get rid of these limitations, we study mechani

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Shang, C., I. Csaba Sinka, and J. Pan. "Material Data for Modelling Density Distributions in Green Parts." Materials Science Forum 672 (January 2011): 207–14. http://dx.doi.org/10.4028/www.scientific.net/msf.672.207.

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Die compaction of powders is a process which involves filling a die with powder, compaction using rigid punches to form a dense compact and ejection from the die. The process can be treated as a large deformation plasticity problem. The challenge is to develop and implement appropriate constitutive models that capture the evolution of the powder from a loose state into a dense compact. In this paper we describe data analysis procedures and calibrate classic incremental plasticity models, such as Cam-Clay, Drucker-Prager cap models. The complexity of the models is increased from models with a h

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HÜSEYNOVA, K. S., and İ. Z. VƏLİYEVA. "AZƏRBAYCAN VƏ İNGİLİS DİLLƏRİNDƏ FEİLİN NÖVLƏRİ VƏ ONLARIN NİTQ HİSSƏLƏRİ SİSTEMİNDƏ ROLU VƏ ƏHƏMİYYƏTİ." Actual Problems of study of humanities 2, no. 2024 (2024): 55–58. http://dx.doi.org/10.62021/0026-0028.2024.3.055.

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Types of Verbs in the Azerbaijan and English Languages, Their Role and Meaning in Parts of the Language System Summary The article analyzes the different kinds of verbs in English and Azerbaijani, also analyzes the role and meaning of parts of speech in simple and complex sentences, also personal and unpersonal forms of verbs and their changes in present, past tense forms. Verbal adjectives in English are impersonal forms of verbs, and have both adjective and adverbial characteristics in addition to verb characteristics. As we know, the verb adjective is the present tense form of a) in English

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Li, Fen Qiang, and Jian Hua Mo. "Springback Analysis of TC4 Titanium Alloy Complex Part with Double Curvature under Single Point Incremental Forming Process." Advanced Materials Research 468-471 (February 2012): 1094–98. http://dx.doi.org/10.4028/www.scientific.net/amr.468-471.1094.

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To make the structure of aircraft meet the aerodynamic requirements, complex lightweight structures such as double curvature shape and high-strength lightweight materials such as titanium alloy are generally used in design and forming of aircraft skin parts. But the forming processes and problems aimed to this kind of parts remain to be investigated further now. In this paper, based on single point incremental forming process, the TC4 titanium alloy aircraft parts with a complex double curvature was studied. In order to reduce the springback during the forming process an appropriate addendum s

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Tarasov, Sergey D., Boris A. Staroverov, Valery V. Lapshin, and Mikhail P. Levykin. "METHOD FOR PLACING SHOES PARTS TEMPLATES FOR THE ARK 1500 CUTTING COMPLEX WITH ASSESSMENT OF THE PERCENTAGE OF MATERIAL AREA USE." Technologies & Quality 64, no. 2 (2024): 13–17. http://dx.doi.org/10.34216/2587-6147-2024-2-64-13-17.

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This article discusses the method of placing templates for shoe parts for the ARK 1500 cutting complex. The technique was developed to automate the operation of the ARK 1500 cutting complex and increase the percentage of use of the material being cut. The object of study in this article is the placement of shoe parts templates on a sheet of material. The subject of the research is methods for rational placement of templates and increasing the percentage of material used. The developed methodology is implemented in the form of a computer program. The article provides an example of using the tec

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Denkena, Berend, F. Berg, and W. Acker. "Surface Inspection System for Large Sheet Metal Parts." Advanced Materials Research 6-8 (May 2005): 559–64. http://dx.doi.org/10.4028/www.scientific.net/amr.6-8.559.

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In this paper a measuring system that allows an automatic detection of waviness and form errors in sheet metal parts is introduced. The system is based on a stripe projection method using a high resolution line scan camera. Particular focus is put on achieving a short measuring time and a high resolution in depth, aiming at a reliable automatic recognition of dents and waviness of 10 µm on large curved surfaces of approximately 1 m width. On smoothly curved surfaces a spatial frequency analysis is used to detect dents. By combining this spatial frequency analysis with a CAD model, more complex

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Chadha, Charul, Kathryn Crowe, Christina Carmen, and Albert Patterson. "Exploring an AM-Enabled Combination-of-Functions Approach for Modular Product Design." Designs 2, no. 4 (2018): 37. http://dx.doi.org/10.3390/designs2040037.

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This work explores an additive-manufacturing-enabled combination-of-function approach for design of modular products. AM technologies allow the design and manufacturing of nearly free-form geometry, which can be used to create more complex, multi-function or multi-feature parts. The approach presented here replaces sub-assemblies within a modular product or system with more complex consolidated parts that are designed and manufactured using AM technologies. This approach can increase the reliability of systems and products by reducing the number of interfaces, as well as allowing the optimizat

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