Journal articles: 'Block diagrams'

1

Caspi, P. "Towards Recursive Block Diagrams." IFAC Proceedings Volumes 27, no. 6 (June 1994): 81–85. http://dx.doi.org/10.1016/s1474-6670(17)45971-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Parkhomenko, P. P., and M. F. Karavai. "Multiple combinatorial block diagrams." Automation and Remote Control 74, no. 6 (June 2013): 995–1003. http://dx.doi.org/10.1134/s000511791306009x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Caspi, P. "Towards recursive block diagrams." Annual Review in Automatic Programming 18 (January 1994): 81–85. http://dx.doi.org/10.1016/0066-4138(94)90015-9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Frolov, Aleksandr B., Natalya P. Kochetova, Anton O. Klyagin, and Dmitriy Yu Temnikov. "The Algorithmic Aspects of Creating and Using Wireless Sensor Network Key Spaces Based on Combinatorial Block Diagrams." Vestnik MEI 2, no. 2 (2021): 108–18. http://dx.doi.org/10.24160/1993-6982-2021-2-108-118.

Full text

Abstract:

Algorithmic approach principles relating to development and use of wireless sensor network (WSS) key spaces are formulated based on an analysis of the keys management peculiarities. The formulated principles, which meet certain requirements for the WSS key spaces, have been elaborated proceeding from the assumption that their structure corresponds to one of the varieties of combinatorial block diagrams: cyclic or acyclic projective plane, linear or quadratic transversal block diagrams. Owing to the WSS having a distributed configuration, it becomes possible to avoid the need to construct a combinatorial block diagram in full scope, and the required blocks are computed, whenever necessary, in scaling the network (in adding new nodes) or when determining, in a decentralized manner, the switching parameters of specific nodes. To do so, it is necessary to have algorithms for computing the blocks of the combinatorial block diagram (as the sets of key numbers allocated to a given node) and dual blocks (as the sets of the numbers of nodes to which keys are assigned with the numbers coinciding with the numbers of dual blocks), as well as algorithms for solving derived problems: computing of the key numbers common to two nodes and the number of the node that has a common key with one of two nodes and, possibly, another key with the other one. These problems are solved by using the numbering of elements, blocks and dual blocks in accordance with the proposed duality rule: sets of elements and dual blocks are in one-to-one correspondence by numbering; the dual block with a specified number contains the numbers of blocks containing elements with this number. Distributed (independent) calculation of blocks is carried out on the basis of algebraic identifiers computed by block numbers. In addition to the possible absence of a physical connection between the nodes, the inadmissibility of using separate (compromised) keys is taken into account, and the incomplete furnishing of the network nodes with keys, as well as the incompleteness of the system implementation as a whole. Algorithms for computing the switching parameters of two nodes in designing the WSS and an algorithm for computer modeling of the calculation of such parameters during the WSS operation subject to the specified constraints and in using any of the above types of combinatorial block diagrams are presented.

APA, Harvard, Vancouver, ISO, and other styles

5

Frey, Daniel D., Kevin N. Otto, and Stan Taketani. "Manufacturing Block Diagrams and Optimal Adjustment Procedures." Journal of Manufacturing Science and Engineering 123, no. 1 (October 1, 1999): 119–27. http://dx.doi.org/10.1115/1.1310329.

Full text

Abstract:

This paper introduces a technique for modeling manufacturing systems using block diagrams. The blocks represent linear transformations of dimensionless noise vectors to normalized quality characteristic vectors. These block diagrams are used to model on-line adjustment procedures using generalized inverses. This adjustment strategy is shown to guarantee minimum quality loss as defined by Taguchi if the required adjustments have no active constraints, and is effective for coupled linear systems. The surface mount of large body packages serves as an example of the modeling techniques. Block diagrams of the surface mount process are developed for a production system incorporating on-line adjustments and for the same system without adjustments. Data from preproduction runs support the model’s predictions of bias, variance, and yield.

APA, Harvard, Vancouver, ISO, and other styles

6

Smart, J. J. C. "Neural circuits and block diagrams." Behavioral and Brain Sciences 22, no. 5 (October 1999): 849. http://dx.doi.org/10.1017/s0140525x99442190.

Full text

Abstract:

This commentary is intended to illuminate Gold's & Stoljar's main contentions by exploiting a favorite comparison, namely, that between biology and electronics. Roughly, and leaving out Darwinian theory and the like, biology is physics and chemistry plus natural history just as electronics is physics plus wiring diagrams. Natural history (even that discovered by sophisticated apparatus such as electron microscopes) contains generalizations, not laws. Psychology and cognitive science typically give more abstract explanations, as do “block diagrams” in electronics, and are less dispensable.

APA, Harvard, Vancouver, ISO, and other styles

7

CAVALIERI, RENZO, PAUL JOHNSON, HANNAH MARKWIG, and DHRUV RANGANATHAN. "Counting curves on Hirzebruch surfaces: tropical geometry and the Fock space." Mathematical Proceedings of the Cambridge Philosophical Society 171, no. 1 (February 22, 2021): 165–205. http://dx.doi.org/10.1017/s0305004120000171.

Full text

Abstract:

We study the stationary descendant Gromov–Witten theory of toric surfaces by combining and extending a range of techniques – tropical curves, floor diagrams and Fock spaces. A correspondence theorem is established between tropical curves and descendant invariants on toric surfaces using maximal toric degenerations. An intermediate degeneration is then shown to give rise to floor diagrams, giving a geometric interpretation of this well-known bookkeeping tool in tropical geometry. In the process, we extend floor diagram techniques to include descendants in arbitrary genus. These floor diagrams are then used to connect tropical curve counting to the algebra of operators on the bosonic Fock space, and are showno coincide with the Feynman diagrams of appropriate operators. This extends work of a number of researchers, including Block–Göttsche, Cooper–Pandharipande and Block–Gathmann–Markwig.

APA, Harvard, Vancouver, ISO, and other styles

8

Wood, Alan P. "Multistate Block Diagrams and Fault Trees." IEEE Transactions on Reliability R-34, no. 3 (August 1985): 236–40. http://dx.doi.org/10.1109/tr.1985.5222131.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Lublinerman, Roberto, Christian Szegedy, and Stavros Tripakis. "Modular code generation from synchronous block diagrams." ACM SIGPLAN Notices 44, no. 1 (January 21, 2009): 78–89. http://dx.doi.org/10.1145/1594834.1480893.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Kang, Chang Kwon, and Wang Cheol Zin. "Phase diagrams for block copolymer/homopolymer blends." Macromolecules 25, no. 12 (June 1992): 3039–45. http://dx.doi.org/10.1021/ma00038a006.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Sonnenberg, Amnon, John M. Inadomi, and Peter Bauerfeind. "Reliability Block Diagrams to Model Disease Management." Medical Decision Making 19, no. 2 (April 1999): 180–85. http://dx.doi.org/10.1177/0272989x9901900208.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Zolnikov, Vladimir, O. Oksyuta, K. Chubur, and Oleg Kvasov. "DEVELOPMENT OF A TEST CRYSTAL IN THE DESIGN OF CMOS TECHNOLOGY CHIPS." Modeling of systems and processes 13, no. 3 (December 7, 2020): 58–65. http://dx.doi.org/10.12737/2219-0767-2020-13-3-58-65.

Full text

Abstract:

The article discusses methods and technologies for testing chips using test crystals and describes the structure of such crystals developed as a chip for research. Diagrams of the I / O element verification block, the core element verification block, and the ring generator block, as well as diagrams of a number of ring generators, are presented.

APA, Harvard, Vancouver, ISO, and other styles

13

Erusheva, K. I., K. Yu Kolybanov, and I. R. Tishaeva. "FUNCTIONAL MODELING OF THE PROCESS OF CHOOSING THE BEST AVAILABLE TECHNIQUE." Fine Chemical Technologies 12, no. 4 (August 28, 2017): 98–105. http://dx.doi.org/10.32362/2410-6593-2017-12-4-98-105.

Full text

Abstract:

Due to the relevance of the problem of implementation of the Best Available Techniques (BAT) in the chemical industry of the Russian Federation it is necessary to develop a scientifically defensible transition process to BAT for chemical manufactures. For this purpose, the functional modeling methodology was used in the graphical notation IDEF0 standardized in the Russian Federation. The production process for the transition of a chemical manufacture to BAT was described as a hierarchical structure represented as a diagram consisting of functional blocks and arcs that connect them. First, the simulation object was represented as a single block with boundary arrows, which show how the simulated process is related to the environment. Then it was sequentially decomposed into diagrams of a lower level, i.e., stepwise hierarchical decomposition of the top-level context diagram was performed, which resulted in a set of interrelated diagrams that describe the processes and relationships between them and the environment. This allows us to clearly establish the order of actions that are performed at each stage of the transfer of chemical manufacture to BAT.

APA, Harvard, Vancouver, ISO, and other styles

14

Shevchenko, V. S., R. V. Netrebko, А. I. Netrebko, and І. V. Zimchuk. "IMPLEMENTATION OF SOFTWARE SELECTION OF RADIO ELECTRONIC INTELLIGENCE MEANS AT THE STAGE OF ASSESSMENT OF THE SITUATION." Проблеми створення, випробування, застосування та експлуатації складних інформаційних систем, no. 18 (December 30, 2020): 64–72. http://dx.doi.org/10.46972/2076-1546.2020.18.07.

Full text

Abstract:

The article shows the implementation of the software for the selection of electronic intelligence at the stage of assessing the situation on the basis of theoretical studies conducted by the authors. It is indicated on the basis of which documents the assessment of the situation with the choice of electronic reconnaissance means is carried out, what stages this process consists of, what is needed for the selection of electronic reconnaissance means. The design of information flows of the program for the selection of electronic intelligence means at the stage of assessing the situation with the help of Data Flow Diagrams. The general block diagram of algorithm of work of the software of a choice of means of electronic reconnaissance at a stage of an assessment of a situation is constructed. On the basis of the conducted researches the database for storage of the list of means of electronic reconnaissance is developed. The prototype of the software for the selection of electronic intelligence means at the stage of situation assessment is implemented and examples of work on each of the main blocks are given in the form of screenshots, which were pre-designed in diagrams and block diagrams of algorithms. The advantages and disadvantages of the developed software for the selection of electronic reconnaissance means at the stage of situation assessment are determined. The further steps of research and improvement of the program of a choice of means of radio-electronic intelligence at a stage of an assessment of a situation are specified.

APA, Harvard, Vancouver, ISO, and other styles

15

Biryukov, O. N. "Coding Knots by T-Graphs." Contemporary Mathematics. Fundamental Directions 66, no. 4 (December 15, 2020): 531–43. http://dx.doi.org/10.22363/2413-3639-2020-66-4-531-543.

Full text

Abstract:

In this paper, knots are considered as smooth embeddings of a circle into 3 defined by their flat diagrams. We propose a new method of coding knots by T-graphs describing the torsion structure on a flat diagram. For this method of coding, we introduce conceptions of a cycle and a block and describe transformations of T-graphs under the first and the third Reidemeister moves applied to the flat diagram of a knot.

APA, Harvard, Vancouver, ISO, and other styles

16

Polaków, Grzegorz, and Mieczyslaw Metzger. "Dynamically Generated Block Diagrams as a Visualisation Method." IFAC Proceedings Volumes 42, no. 13 (2009): 109–18. http://dx.doi.org/10.3182/20090819-3-pl-3002.00020.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Pandey, Vijitashwa, and Zissimos Mourelatos. "A Methodology for Design Decisions using Block Diagrams." SAE International Journal of Materials and Manufacturing 6, no. 3 (April 8, 2013): 474–80. http://dx.doi.org/10.4271/2013-01-0947.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Tuttas, C. "Description of power electronic circuits by block diagrams." European Transactions on Electrical Power 7, no. 6 (September 7, 2007): 421–27. http://dx.doi.org/10.1002/etep.4450070609.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Bhattacharjya, Debarun, and Léa A. Deleris. "From Reliability Block Diagrams to Fault Tree Circuits." Decision Analysis 9, no. 2 (June 2012): 128–37. http://dx.doi.org/10.1287/deca.1120.0231.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Taylor, Paul C., and Bernard W. Silverman. "Block diagrams and splitting criteria for classification trees." Statistics and Computing 3, no. 4 (December 1993): 147–61. http://dx.doi.org/10.1007/bf00141771.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Belousova, M. V., V. V. Bulatov, and N. V. Smirnov. "Estimation of the failure flow of a set of passenger car doors." Dependability 21, no. 3 (September 21, 2021): 20–26. http://dx.doi.org/10.21683/1729-2646-2021-21-3-20-26.

Full text

Abstract:

An estimation of the failure flows is a prerequisite for the operation of industrial products. It is based on statistical data about failures that occur within technical items in the process of their operation. In the technical product documentation, this indicator shall be featured in the “Dependability parameter estimation” section. The dependability analysis of rolling stock is still affected by the difficulty of defining the methodology for evaluating this parameter at various system levels. For the purpose of analysing a multicomponent system, a reliability block diagram should be developed, and the possible replacement (redundant) elements should be taken into consideration. Multicomponent systems are often represented through various block diagrams, where, among others, the “m-out-of-n” structure may be used referring to a system with a parallel arrangement of elements that is operable when at least m elements operate. An example of such system is a set of passenger car doors. The manufacturers and customers may have different approaches to calculating technical system dependability. First, the required dependability indicator for the entire train is defined that, in turn, defines the dependability requirements for a car. At the same time, the dependability indicator for a car is determined by the respective values of its components (subsystems, units and parts). However, the nature of the relationship between a car and its components is not always taken into account. At the same time, car manufacturers can and should define in the regulatory documentation (and later supervise in operation) the dependability indicators for a set of doors (components of a car in our case) as a single system. However, the failure criteria of a set of doors are not always defined. This paper examines the method of calculating the failure flow for a set of passenger car doors based on operational data and the failure flow of a single door. Aim. To propose a method for calculating the failure flow of a set of 6 car doors by analysing the possible reliability block diagrams with subsequent transition to transition and state graphs.Conclusions. A number of block diagrams were developed for the purpose of dependability calculation of sets of passenger car doors based on the system failure criterion. The failure flow of a set of car doors was calculated according to the developed block diagrams. It is concluded that the Markovian method of calculating the failure flow is of higher priority than the logic-and-probability approach, since it takes into account the recovery factor. A Markovian method was proposed for calculating the failure flow and recovery time of a set of car doors for the “3-out-of-4” reliability block diagram.

APA, Harvard, Vancouver, ISO, and other styles

22

Morris, A. O., and A. K. Yaseen. "Some combinatorial results involving shifted Young diagrams." Mathematical Proceedings of the Cambridge Philosophical Society 99, no. 1 (January 1986): 23–31. http://dx.doi.org/10.1017/s030500410006388x.

Full text

Abstract:

In [6] the first author introduced some combinatorial concepts involving Young diagrams corresponding to partitions with distinct parts and applied them to the projective representations of the symmetric group Sn. A conjecture concerning the p-block structure of the projective representations of Sn was formulated in terms of these concepts which corresponds to the well-known, but long proved, Nakayama ‘conjecture’ for the p-block structure of the linear representations of Sn. This conjecture has recently been proved by Humphreys [1].

APA, Harvard, Vancouver, ISO, and other styles

23

Anastasio, Thomas J., and David A. Robinson. "Distributed Parallel Processing in the Vestibulo-Oculomotor System." Neural Computation 1, no. 2 (June 1989): 230–41. http://dx.doi.org/10.1162/neco.1989.1.2.230.

Full text

Abstract:

The mechanisms of eye-movement control are among the best understood in motor neurophysiology. Detailed anatomical and physiological data have paved the way for theoretical models that have unified existing knowledge and suggested further experiments. These models have generally taken the form of black-box diagrams (for example, Robinson 1981) representing the flow of hypothetical signals between idealized signal-processing blocks. They approximate overall oculomotor behavior but indicate little about how real eye-movement signals would be carried and processed by real neural networks. Neurons that combine and transmit oculomotor signals, such as those in the vestibular nucleus (VN), actually do so in a diverse, seemingly random way that would be impossible to predict from a block diagram. The purpose of this study is to use a neural-network learning scheme (Rumelhart et al. 1986) to construct parallel, distributed models of the vestibulo-oculomotor system that simulate the diversity of responses recorded experimentally from VN neurons.

APA, Harvard, Vancouver, ISO, and other styles

24

Burlyaeva, E. V., V. V. Burlyaev, V. V. Kononenko, and V. S. Tsekhanovich. "Verification of functional models of chemical manufacturing." Fine Chemical Technologies 14, no. 4 (September 15, 2019): 69–76. http://dx.doi.org/10.32362/2410-6593-2019-14-4-69-76.

Full text

Abstract:

A generalized algorithm for the verification of functional models and the rules for the verification of diagrams related by levels of detail were developed in this paper. The algorithm is based on the analysis of a tree which describes the decompose relations in functional diagrams. At each step of the algorithm, a pair consisting of a parent diagram and a functional diagram is selected, and the correlation of the arrows and their roles is checked for both. The formalization of the verification rules was based on the set-theoretic representation of functional diagrams in the form of labeled oriented graphs. The rules make it possible to map the position and roles of the arrows associated with the detailed function block of the parent diagram to the arrows of the child diagram. The following rules for each of the possible arrow roles were established: “input”, “output”, “control”, “mechanism”. The use of the logic programming language PROLOG was proposed for the implementation of the algorithm. A knowledge base structure comprised of 3 interrelated predicates to describe the tree of diagrams, nodes and edges of the graphs was suggested. A query to check the verification rules was formed, and methods of binding variables and fixing roles were considered. The analysis and verification of a fragment of a functional model for the production of vinyl acetate from ethylene was conducted as an example. The functional diagrams for the processes “Condensate separation” and “Vinyl acetate isolation” connected by a decompose relation were developed, their set-theoretic models were constructed, and the use of rules for the verification of each type of arrow were considered.

APA, Harvard, Vancouver, ISO, and other styles

25

Maltseva, Daria, Sergey Zablotskiy, Julia Martemyanova, Viktor Ivanov, Timur Shakirov, and Wolfgang Paul. "Diagrams of States of Single Flexible-Semiflexible Multi-Block Copolymer Chains: A Flat-Histogram Monte Carlo Study." Polymers 11, no. 5 (April 30, 2019): 757. http://dx.doi.org/10.3390/polym11050757.

Full text

Abstract:

The combination of flexibility and semiflexibility in a single molecule is a powerful design principle both in nature and in materials science. We present results on the conformational behavior of a single multiblock-copolymer chain, consisting of equal amounts of Flexible (F) and Semiflexible (S) blocks with different affinity to an implicit solvent. We consider a manifold of macrostates defined by two terms in the total energy: intermonomer interaction energy and stiffness energy. To obtain diagrams of states (pseudo-phase diagrams), we performed flat-histogram Monte Carlo simulations using the Stochastic Approximation Monte Carlo algorithm (SAMC). We have accumulated two-Dimensional Density of States (2D DoS) functions (defined on the 2D manifold of macrostates) for a SF-multiblock-copolymer chain of length N = 64 with block lengths b = 4, 8, 16, and 32 in two different selective solvents. In an analysis of the canonical ensemble, we calculated the heat capacity and determined its maxima and the most probable morphologies in different regions of the state diagrams. These are rich in various, non-trivial morphologies, which are formed without any specific interactions, and depend on the block length and the type of solvent selectivity (preferring S or F blocks, respectively). We compared the diagrams with those for the non-selective solvent and reveal essential changes in some cases. Additionally, we implemented microcanonical analysis in the “conformational” microcanonical ( N V U , where U is the potential energy) and the true microcanonical ( N V E , where E is the total energy) ensembles with the aim to reveal and classify pseudo-phase transitions, occurring under the change of temperature.

APA, Harvard, Vancouver, ISO, and other styles

26

Shinnaka, Shinji. "New Block Diagrams Using Vector Signals for AC Machine." IEEJ Transactions on Industry Applications 118, no. 6 (1998): 715–23. http://dx.doi.org/10.1541/ieejias.118.715.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Andresen, Trond. "A Recursive Algorithm for the Reduction of Block Diagrams." Modeling, Identification and Control: A Norwegian Research Bulletin 12, no. 1 (1991): 47–56. http://dx.doi.org/10.4173/mic.1991.1.4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Harrell, Marvin E., and Dawn R. Slavens. "Investigations: Using Base-Ten Block Diagrams for Divisibility Tests." Teaching Children Mathematics 15, no. 6 (February 2009): 370–78. http://dx.doi.org/10.5951/tcm.15.6.0370.

Full text

Abstract:

“Investigations” features children's hands-on and minds-on explorations in mathematics and presents teachers with open-ended investigations to enhance mathematics instruction. These tasks invoke problem solving and reasoning, require communication skills, and connect various mathematical concepts and principles. The ideas presented here have been tested in classroom settings.

APA, Harvard, Vancouver, ISO, and other styles

29

Papazoglou, Ioannis A. "Functional block diagrams and automated construction of event trees." Reliability Engineering & System Safety 61, no. 3 (September 1998): 185–214. http://dx.doi.org/10.1016/s0951-8320(98)00011-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Xu, H., L. Xing, and R. Robidoux. "Drbd: Dynamic Reliability Block Diagrams for System Reliability Modelling." International Journal of Computers and Applications 31, no. 2 (January 2009): 132–41. http://dx.doi.org/10.1080/1206212x.2009.11441934.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Parkhomenko, P. P. "Algorithmizing design of a class of combinatorial block diagrams." Automation and Remote Control 77, no. 7 (July 2016): 1216–24. http://dx.doi.org/10.1134/s0005117916070080.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Shinnaka, Shinji. "New block diagrams using vector signals for ac machine." Electrical Engineering in Japan 130, no. 3 (February 2000): 57–67. http://dx.doi.org/10.1002/(sici)1520-6416(200002)130:3<57::aid-eej7>3.0.co;2-k.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Barnhill, Sarah A., Nia C. Bell, Joseph P. Patterson, Daniel P. Olds, and Nathan C. Gianneschi. "Phase Diagrams of Polynorbornene Amphiphilic Block Copolymers in Solution." Macromolecules 48, no. 4 (February 6, 2015): 1152–61. http://dx.doi.org/10.1021/ma502163j.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Denckla, Ben. "Many cyclic block diagrams do not need parallel semantics." ACM SIGPLAN Notices 41, no. 8 (August 2006): 16–20. http://dx.doi.org/10.1145/1163566.1163572.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Ahmed, Waqar, Osman Hasan, and Sofiène Tahar. "Formalization of Reliability Block Diagrams in Higher-order Logic." Journal of Applied Logic 18 (November 2016): 19–41. http://dx.doi.org/10.1016/j.jal.2016.05.007.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Tiţa, Irina, and Irina Mardare. "Research Regarding Pressure Compensated Flow Control Valves." Applied Mechanics and Materials 809-810 (November 2015): 992–97. http://dx.doi.org/10.4028/www.scientific.net/amm.809-810.992.

Full text

Abstract:

In fluid power systems, flow control may be done either with variable displacement pump or using variable orifice. In this paper is considered the second method for flow control. In a hydraulic system, working pressure is frequently variable and therefore the use of the method does not provide constant flow rates in all operating conditions. In order to keep a constant flow, if this is important in a certain case, the flow control must be accomplished using a pressure compensated flow control valve. In this paper are analyzed possible structural diagrams, mathematical model, block diagram and functional diagram for this kind of equipment. The influence of the spring compression is analyzed also. The diagrams proposed in the paper will be used for the study of a hydraulic system designated for applications with strict flow control. It will represent an important research instrument for such cases.

APA, Harvard, Vancouver, ISO, and other styles

37

SZKUTNIK, J., and K. KUŁAKOWSKI. "CHAOS IN PIECEWISELY INTEGRABLE TRAIN MODEL FOR TWO BLOCKS." International Journal of Modern Physics C 13, no. 01 (January 2002): 41–48. http://dx.doi.org/10.1142/s0129183102002924.

Full text

Abstract:

The train model of two blocks with stick-slip dynamics (M. de Sousa Vieira, 1995) is believed to be the simplest spring-block system, which displays chaos. Here we simplify it even more by linearizing the velocity dependence of the friction force. In this way, the nonlinearity of the equations of motion is reduced to the time moments, when a block starts to move or stops, and when the analytical solutions are to be sewn together. We demonstrate, that for small values of the velocity of blocks, the character of motion is not changed. This is observed on the bifurcation diagrams, the Lyapunov exponents, the phase portraits and the power spectra.

APA, Harvard, Vancouver, ISO, and other styles

38

Grudz, V. Ya, Ya V. Grudz, and V. V. Bevz. "ANALYSIS OF KINEMATIC DIAGRAMS OF EXISTING PUMPING UNITS." PRECARPATHIAN BULLETIN OF THE SHEVCHENKO SCIENTIFIC SOCIETY Number, no. 1(53) (September 27, 2019): 142–54. http://dx.doi.org/10.31471/2304-7399-2019-1(53)-142-154.

Full text

Abstract:

The kinematic schemes of the installations of oil well equipment for oil production are considered, the estimation of their efficiency is given, the efforts on the structural elements in the process of its operation are analyzed. On the basis of the analysis of designs of hydraulic drive rod pump units it is shown that any hydraulic drive rod unit can be considered as a set of several functional blocks, of which the unit of the body organ that carries out the movement of the column of the rod, the block of the hydraulic drive that converts the energy of the energy units is mandatory. drive into the fluid flow of the working fluid and the block system of reversing the flow of the working fluid. It is proved that all installations that use for oil extraction have significant disadvantages, which in this design can not be eliminated, because improvement of one defect leads to deterioration of its other parameters. As a prototype in the design of a new installation, the most advanced designs were taken, and in order to create a new design a complete analysis of each of them was made, a design was selected that has improved characteristics in comparison with the others and will serve to take into account and eliminate the defects that must be taken into account in the design. The technical task of creating a new design is to increase the reliability of the drive, simplify the system of load compensation, eliminate leakage of working fluid and increase the efficiency of the deep-pumping equipment. The analysis of the workflow of the installation made it possible to evaluate the efficiency of operation, which is important in the design of the equipment, in order to improve the reliability of its operation in specific conditions and to reduce energy consumption, ie increase the efficiency of the system.

APA, Harvard, Vancouver, ISO, and other styles

39

Toirov, Olimjon, Tulyagan Kamalov, Utkir Mirkhonov, Sardor Urokov, and Dilnoza Jumaeva. "The mathematical model and a block diagram of a synchronous motor compressor unit with a system of automatic control of the excitation." E3S Web of Conferences 288 (2021): 01083. http://dx.doi.org/10.1051/e3sconf/202128801083.

Full text

Abstract:

The general requirements for the automatic excitation control system of synchronous motors of a compressor unit are shown, taking into account its operating modes. A mathematical model is presented, a block diagram of the excitation circuits of a synchronous motor of a compressor unit and an exciter, which characterizes the feedback of the internal properties of this part of the system in dynamics. A block diagram of a closed-loop automatic excitation control system is obtained, taking into account the elasticity of the mechanical part and a hard blow in the compressor gas pipeline. The obtained structural diagrams make it possible to determine the transfer functions of the considered system in terms of control and disturbing influences, the characteristic equation, as well as the dependencies of various frequency characteristics, which make it possible to investigate the dynamic indicators (stability, control quality, etc.) of the system.

APA, Harvard, Vancouver, ISO, and other styles

40

Denckla, Ben, and Pieter J. Mosterman. "Stream- and State-Based Semantics of Hierarchy in Block Diagrams." IFAC Proceedings Volumes 41, no. 2 (2008): 7955–60. http://dx.doi.org/10.3182/20080706-5-kr-1001.01344.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Mosterman, Pieter J., Justyna Zander, Gregoire Hamon, and Ben Denckla. "Towards Computational Hybrid System Semantics for Time-Based Block Diagrams." IFAC Proceedings Volumes 42, no. 17 (2009): 376–85. http://dx.doi.org/10.3182/20090916-3-es-3003.00065.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Oh, Younju, Junbeom Yoo, Sungdeok Cha, and Han Seong Son. "Software safety analysis of function block diagrams using fault trees." Reliability Engineering & System Safety 88, no. 3 (June 2005): 215–28. http://dx.doi.org/10.1016/j.ress.2004.07.019.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Barker, H. A., M. Chen, and P. Townsend. "Algorithms for Transformations Between Block Diagrams and Signal Flow Graphs." IFAC Proceedings Volumes 21, no. 8 (August 1988): 281–86. http://dx.doi.org/10.1016/s1474-6670(17)54966-6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

McInnes, Allan I., Brandon K. Eames, and Russell Grover. "Formalizing Functional Flow Block Diagrams Using Process Algebra and Metamodels." IEEE Transactions on Systems, Man, and Cybernetics - Part A: Systems and Humans 41, no. 1 (January 2011): 34–49. http://dx.doi.org/10.1109/tsmca.2010.2048749.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Houben, Christina. "PEARL-Coded Function Block Diagrams — From Language Design to Verification." IFAC-PapersOnLine 48, no. 10 (2015): 258–63. http://dx.doi.org/10.1016/j.ifacol.2015.08.141.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Lee, Hwan-Koo, Chang-Kwon Kang, and Wang-Cheol Zin. "Phase diagrams for block copolymer/ homopolymer blends exhibiting LCST behaviour." Polymer 37, no. 2 (January 1996): 287–95. http://dx.doi.org/10.1016/0032-3861(96)81101-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Charlesworth, H. A. K. "Computer-constructed block diagrams of folded and thrust-faulted strata." Journal of Structural Geology 9, no. 4 (January 1987): 503–4. http://dx.doi.org/10.1016/0191-8141(87)90126-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Aleksandrova, N. D., N. I. Davydov, Yu V. Nesterov, and M. A. Pikin. "Mathematical models for optimization of block diagrams and controller adjustment." Power Technology and Engineering 41, no. 5 (September 2007): 313–18. http://dx.doi.org/10.1007/s10749-007-0057-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Aoyagi, Takeshi. "Deep learning model for predicting phase diagrams of block copolymers." Computational Materials Science 188 (February 2021): 110224. http://dx.doi.org/10.1016/j.commatsci.2020.110224.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Вохмин, А. А., О. А. Евдокимова, and А. А. Малявко. "VISUAL-GRAPHIC PROGRAMMING SYSTEM BASED ON DEVELOPMENT OF BLOCK DIAGRAMS OF ALGORITHMS. CONVERTING PROGRAMS TEXTS IN DIFFERENT PROGRAMMING LANGUAGES INTO BLOCK DIAGRAMS AND BACK." Южно-Сибирский научный вестник, no. 3(37) (June 30, 2021): 49–57. http://dx.doi.org/10.25699/sssb.2021.37.3.013.

Full text

Abstract:

В работе представлены результаты исследований и разработки средств визуально-графического проектирования сложных алгоритмов в виде блок-схем в целом и, в частности, интерфейсной компоненты таких средств – конвертора текстов программ на различных языках программирования во внутреннее структурно-вложенное представление и обратно в тексты. Визуально-графическое представление алгоритмов лучше воспринимается человеком-разработчиком, чем традиционное текстовое представление, поэтому развитию подобных систем программирования в последнее время уделяется определенное внимание. Однако реализация максимально удобных для человека технологий создания и редактирования блок-схем сопряжена с необходимостью решения ряда сложных задач формирования и адекватного отображения управляющих структур, используемых в популярных языках программирования. Проведен анализ таких структур для наиболее популярных по разным метрикам языков программирования, представлены его результаты и предложен способ выявления и преобразования управляющих структур во внутреннее представление визуально-графического редактора. Описаны основные алгоритмы работы конвертора текстов программ как в прямом, так и в обратном направлениях. The paper presents the results of research and development of tools for visual and graphic design of complex algorithms in the form of block diagrams in general and, in particular, the interface component of such tools - a converter of programs texts in various programming languages into an internal structurally nested representation and back into texts. The visual-graphical representation of algorithms is better perceived by a human developer than the traditional textual representation, therefore, some attention has been paid to the development of such programming systems in recent years. However, the implementation of the most human-friendly technologies for creating and editing block diagrams is associated with the need to solve a number of complex problems of forming and adequately displaying control structures used in popular programming languages. The analysis of such structures for the most popular programming languages in terms of various metrics is carried out, its results are presented, and a method for identifying and transforming control structures into an internal representation of a visual-graphic editor is proposed. The main algorithms for the operation of the program text converter both in forward and backward directions are described.

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Block diagrams'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles