Relevant bibliographies by topics / The system of essential parameters

Contents

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

Academic literature on the topic 'The system of essential parameters'

Author: Grafiati
Published: 4 June 2021
Last updated: 6 February 2022

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Journal articles on the topic "The system of essential parameters"

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PAOLINI, LUCA, MAURO PICCOLO, and SIMONA RONCHI DELLA ROCCA. "Essential and relational models." Mathematical Structures in Computer Science 27, no. 5 (July 23, 2015): 626–50. http://dx.doi.org/10.1017/s0960129515000316.

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Intersection type assignment systems can be used as a general framework for building logical models of λ-calculus that allow to reason about the denotation of terms in a finitary way. We defineessentialmodels (a new class of logical models) through a parametric type assignment system using non-idempotent intersection types. Under an interpretation of terms based on typings instead than the usual one based on types, every suitable instance of the parameters induces a λ-model, whose theory is sensible. We prove that this type assignment system provides a logical description of a family of λ-models arising from a category of sets and relations.
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Fellner, Andrzej, and Henryk Jafernik. "Airborne Measurement System During Validation of Egnos/Gnss Essential Parameters in Landing." Reports on Geodesy and Geoinformatics 96, no. 1 (June 1, 2014): 27–37. http://dx.doi.org/10.2478/rgg-2014-0004.

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Abstract The air transport requires certificate of ground and deck devices, systems and adequate procedures. However applied geodetic techniques and measuring technologies depend on taken undertakings. If one should precisely put standard ground systems and the navigational assistance are overbalancing static geodetic techniques and measuring technologies. However operational activity, depending on the phase of the flight a real requires applying geodetic techniques and measuring Jechnologies time”. As part of conducted air tests they made the validation of four fundamental parameters (accuracy, credibility, availability, continuity) of satellite EGNOS, GNSS signals, made as part of European projects: “Support to the EGNOS APV Operational Implementation - APV MIELEC”, air tests enabled to draw right procedures up and to apply satellite signals in the air transport. Details will be presented in the following article.
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NICULESCU, Filip, Constantin VALCU, Traian TIPA, Adrian SAVESCU, Mirela VASILE, and Constantin SANDU. "Measurement system for the parameters of satellite propulsion." INCAS BULLETIN 11, no. 3 (September 9, 2019): 127–34. http://dx.doi.org/10.13111/2066-8201.2019.11.3.11.

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Within the STRAuSS (Advanced Solar Thermal Propulsion System for Increasing of Satellite Operational Life) project to investigate the extension of a satellite operation period, a new valve type and a new type of nozzle were designed. Extending the period of operation of the satellite propulsion is an important factor for increasing its activity period and reducing the production and launch costs. To measure the force generated when releasing propellant gas from the satellite reservoir, a dynamic fine-scale force measurement system has been designed. This system also measures experiment parameters such as: simulated solar radiation size, 4 key temperature and nozzle pressure. The system controls the action of the propellant gas release valve and the activation of lamps that simulate solar radiation from outer space. The system is based on acquisition modules connected to a touch panel computer. Establishing the measurement system and its calibration was an essential step in performing the experiments within the STRAuSS project.
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Salve, Pratibha S., Chitra C. Khanwelkar, Preeti S. Salve, Vandana M. Thorat, Somnath M. Matule, and S. Seshla. "Effect of Losartan on Different Biochemical Parameters in Essential Hypertensive Patients." Biomedical and Pharmacology Journal 12, no. 04 (November 6, 2019): 1827–33. http://dx.doi.org/10.13005/bpj/1813.

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The renin–angiotensin system (RAS) provides the most powerful regulation of blood pressure and angiotensin II is the primary mediator in this system. The binding of angiotensin II to AT1 receptors produces a number of potentially harmful effects that include increase in blood pressure, progression of atherosclerosis, myocardial and vascular hypertrophy. Losartan was the first ARB and found to reduce the risk of stroke, new onset of diabetes and to have a proven benefit in stroke. The present study was designed to evaluate the effect of losartan on different biochemical parameters viz; blood sugar, lipid profile, uric acid and serum electrolytes. 29 newly diagnosed patients of either gender with essential hypertension were included in the study. Baseline readings of lipid profile, serum electrolytes, fasting blood sugar and uric acid were recorded before starting losartan monotherapy and were repeated after six months. After comparing the means, it was revealed that there was a significant increase in HDL cholesterol and a significant decrease in serum uric acid levels after six months of losartan therapy. No significant difference was found in blood sugar and electrolyte levels. These findings suggest that losartan can be an attractive option for the treatment of hypertension and for metabolic syndrome.
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Banachowicz, Andrzej, and Adam Wolski. "Determination of Ship Approach Parameters in the Polar Coordinates System." Reports on Geodesy and Geoinformatics 96, no. 1 (June 1, 2014): 1–8. http://dx.doi.org/10.2478/rgg-2014-0001.

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Abstract An essential aspect of the safety of navigation is avoiding collisions with other vessels and natural or man made navigational obstructions. To solve this kind of problem the navigator relies on automatic anti-collision ARPA systems, or uses a geometric method and makes radar plots. In both cases radar measurements are made: bearing (or relative bearing) on the target position and distance, both naturally expressed in the polar coordinates system originating at the radar antenna. We first convert original measurements to an ortho-Cartesian coordinate system. Then we solve collision avoiding problems in rectangular planar coordinates, and the results are transformed to the polar coordinate system. This article presents a method for an analysis of a collision situation at sea performed directly in the polar coordinate system. This approach enables a simpler geometric interpretation of a collision situation
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Su, Zhaofeng. "Local Information as an Essential Factor for Quantum Entanglement." Entropy 23, no. 6 (June 8, 2021): 728. http://dx.doi.org/10.3390/e23060728.

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Quantum entanglement is not only a fundamental concept in quantum mechanics but also a special resource for many important quantum information processing tasks. An intuitive way to understand quantum entanglement is to analyze its geometric parameters which include local parameters and correlation parameters. The correlation parameters have been extensively studied while the role of local parameters have not been drawn attention. In this paper, we investigate the question how local parameters of a two-qubit system affect quantum entanglement in both quantitative and qualitative perspective. Firstly, we find that the concurrence, a measure of quantum entanglement, of a general two-qubit state is bounded by the norms of local vectors and correlations matrix. Then, we derive a sufficient condition for a two-qubit being separable in perspective of local parameters. Finally, we find that different local parameters could make a state with fixed correlation matrix separable, entangled or even more qualitatively entangled than the one with vanished local parameters.
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Chang, J. R., and C. N. Wang. "Acoustical Analysis of Enclosure Design Parameters for Microspeaker System." Journal of Mechanics 35, no. 1 (September 4, 2017): 1–12. http://dx.doi.org/10.1017/jmech.2017.64.

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AbstractMicrospeakers are key components of mobile devices in current consumer products; moreover, the user experience of multimedia products plays an essential role. The objective of this study was to investigate the acoustic performance of microspeakers in different enclosure parameters for mobile devices. Two methodologies are performed. The first model is an electro-mechano-acoustical model (EMA) of microspeaker along with distribution model of enclosure effect; the 2nd model, the details of diaphragms are taken into account in calculating the distribution models of microspeaker with enclosure parameters. They were combined and applied to determine microspeaker performance levels for mobile devices. Two methodologies show acceptable agreement with experimental results. The distribution model can well simulate the high frequency response than lumped model of microspeaker. The results can predict microspeaker system performance before industrial design and mechanism placement processes are executed.
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Eckardt, A., and R. Reulke. "ON THE DESIGN OF HIGH RESOLUTION IMAGING SYSTEMS." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-1/W1 (May 31, 2017): 97–100. http://dx.doi.org/10.5194/isprs-archives-xlii-1-w1-97-2017.

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The design of high-resolution systems is always a consideration of many parameters. Technological parameter of the imaging system, e.g. diameter of the imaging system, mass and power, as well as storage and data transfer, have an direct impact on spacecraft size and design. The paper describes the essential design parameters for the description of high-resolution systems.
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Ndje, M., J. M. Nyobe Yome, A. T. Boum, L. Bitjoka, and J. C. Kamgang. "Dynamic Matrix Control and Tuning Parameters Analysis for a DC Motor System Control." Engineering, Technology & Applied Science Research 8, no. 5 (October 13, 2018): 3416–20. http://dx.doi.org/10.48084/etasr.2300.

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Model predictive control (MPC) in system control industry overrides the challenges of conventional controllers in controlling complex systems. However, for efficient control, it is essential to find the best combination of parameter values. In this paper, we present the implementation of a multivariable dynamic matrix control (DMC) algorithm. An industrial system consisting of a DC motor, coupled to a mechanical load, the assembly associated with an electronic speed variator was considered to test the implemented DMC controller. DMC’s tuning parameter analysis on the manipulated inputs and their variations on the controlled outputs was performed. Results guarantee that efficient control was presented.
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Zhogoleva, Nadiia, and Volodymyr Shcherbak. "Damping parameters indentification of Lienard polynomial system." Proceedings of the Institute of Applied Mathematics and Mechanics NAS of Ukraine 34 (April 24, 2021): 28–35. http://dx.doi.org/10.37069/1683-4720-2020-34-4.

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In many applications of physics, biology, and other sciences, an approach based on the concept of model equations is used as an approximate model of complex nonlinear processes. The basis of this concept is the provision that a small number of characteristic types movements of simple mathematical models inherent in systems give the key to understanding and exploring a huge number of different phenomena. In particular, it is well known that the complex oscillatory motion can be modeled by a system consisting of one or more coupled nonlinear oscillators that governs by differential equation of a second-order. A Lienard system, namely $ \ddot x(t)+f(x(t))\dot x(t)+g(x(t)) = 0$, is a generalization of the such models. Here $f(x(t))$ and $g(x(t))$ are functions that represent various nonlinear phenomena. The typical sources of nonlinearities in Lienard systems are as follows: large displacements of the structure provoking geometric nonlinearities, a nonlinear material behavior, complex law of damping dissipation, etc. In fact, parameter identification is the base of several engineering tasks: identification can be used for the following: (i) to gain knowledge about the process behavior, (ii) to validate theoretical models, (iii) to tune controller parameters, (iv) to design adaptive control algorithms, (v) to process supervision and fault detection, (vi) to on-line optimization. Hence, in order to represent these nonlinearities, identifying the parameters characterizing their behaviors is essential. The problem of constructing globally convergent identificator for polynomial representation of damping force in general Lienar oscillator is addressed. The method of invariant relations is used for identification scheme design. This aproach is based on dynamical extension of original system and construct of appropriate invariant relations, from which the unknowns parameters can be expressed as a functions of the known quantities on the trajectories of extended system. The final synthesis is carried out from the condition of obtaining asymptotic estimates of unknown parameters. It is shown that an asymptotic estimate of the unknown states can be obtained by rendering attractive an appropriately selected invariant manifold in the extended state space.
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Dissertations / Theses on the topic "The system of essential parameters"

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Miloševski, Jakub. "Systémové pojetí ocenění nemovitosti v Brně Židenicích." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-232663.

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The aim of this master´s thesis is to evaluate the real value of the apartment building and to apply the attributes of the system approach for all operations associated with that particular evaluation. The thesis is mainly focused on the creation of the essential system parameters and the aplication of system methodology on solution of specific expert opinion. As a sample for aplication of system aproach for processing expert opinion was used real estate in Brno-Židenice, on which was used evaluation according to assignment.
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Kumpanová, Simona. "Aplikace systémového přístupu na ocenění nemovitosti s využitím porovnávací metody." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-233041.

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This thesis deals with assessing market value of a particular real estate based on the analysis of a problematic situation. Simultaneously, the author defines and describes the necessary steps in the valuation process, the implementation of these steps, and their application to the given property valuation. The property valuation is based on the method of direct comparison of actual property with various properties in the database and on a comparison according to the law regulation for property valuation. At the same time, the characteristics of the regulation for property valuation were compared with the individual system of essential parameters created for the property. The emphasis was taken on the correct choice of properties for the database. Last but not least, the thesis defines the concepts not only in the field of forensic engineering but also in the system methodology.
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Markgren, Hanna. "Fatigue analysis - system parameters optimization." Thesis, Umeå universitet, Institutionen för fysik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-151755.

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For a mechanical system exposed to repeated cyclic loads fatigue is one of the most common reasons for the system to fail. However fatigue failure calculations are not that well developed. Often when fatigue calculations are made they are done with standard loads and simplified cases. The fatigue life is the time from start of use until the system fails due to fatigue and there does exist some building blocks to calculate the fatigue life. The aim for this project was to put these building blocks together in a workflow that ca be used for calculations of the fatigue life. The workflow was built so that it should be easy to follow for any type of me- chanical system. The start of the workflow is the load history of the system. This is then converted into a stress history that is used for the calculations of the fatigue life. Finally the workflow was tested with two test cases to see if it was possible to use. In Algoryx Momentum the model for each case was set up and then the load history was extracted for each time step during the simulation. To convert the load history to stress history FEM calculations was needed, this was however not a part of this project so the constants to convert loads to stress was given. Then with the stress history in place it was possible to calculate the fatigue life. The results from both test cases were that it was possible to follow every step of the workflow and by this use the workflow to calculate the fatigue life. The second test also showed that with an optimization the system was improved and this resulted in a longer lifetime. To conclude the workflow seems to work as expected and is quite easy to follow. The result given by using the workflow shows the fatigue life, which was the target for the project. However, to be able to evaluate the workflow fully and understand how well the resluts can be trusted a comparison with empiric data would be needed. Still the results from the tests are that the workflow seem to give reasonable results when calculating fatigue life.
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Harrison, Claire Nicola. "Biological studies of the haemopoietic system in essential thrombocythaemia." Thesis, University of Oxford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312452.

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Barnes, Andrew D. "System parameters of X-ray binaries." Thesis, University of Southampton, 2006. https://eprints.soton.ac.uk/420068/.

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Kelly, William Joubert. "Use of a Group Support System to identify essential skills." Diss., The University of Arizona, 1995. http://hdl.handle.net/10150/187121.

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This study used Group Support Systems software tools to determine whether they can be used to develop or improve essential writing skills for learning disabled students at the third grade level. The research study used two processes to evaluate whether these outcomes could be achieved. Using the same group, participants initially were tested without any specific knowledge regarding written language disorders. The second series of testing was done after the same group had read three chapters on "Handwriting Disorders" (Bain, 1991). In both processes the participants used the same testing procedures to determine their responses to questions presented. In each session responses were evaluated to determine similarity to each other and whether this tool could provide evidence that Group Support Systems could be used successfully to develop essential writing skills for learning disabled students. In the initial testing, the no-knowledge group developed broad essential skills that, when compared with the knowledge group, served as general categories. When the participants were tested after having gained knowledge, their responses, while comparable to the no-knowledge group, were more specific. This influx of knowledge provides support for using Group Support systems and its software tools to develop effective essential skills.
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Vaikakkara, Chithran Aarya. "Axon guidance genes are essential in the adult nervous system." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/57654.

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Axon guidance cues are extracellular signals that direct the growth and steering of neuronal growth cones. Both attractive and repulsive cues are required to guide developing axons to their targets. Nonetheless, after axons have reached their targets and established functional circuits, many neurons continue to express these developmental cues. The expression of these genes in the adult indicates that there are likely additional roles for guidance cues beyond the initial phase of neuronal process outgrowth, growth cone navigation, and target innervation. The central goal of my work is to determine the functions of these cues in the mature nervous system. I hypothesize that axon guidance genes expressed in the adult nervous system have functional roles in the maintenance of neural circuits. Work in the past few decades has led to the discovery of numerous axon guidance genes and identified their functions during development. This study is the first to perform an RNA-mediated interference (RNAi) screen for axon guidance genes that have functional roles in the mature nervous system. Axon guidance genes expressed in the adult Drosophila melanogaster nervous system were identified using bio-informatics tools. In Drosophila, more than 96% of embryonic cues continue to be expressed in the adult. The axon guidance genes were knocked down in adult neurons using RNAi via spatial and temporal control of GAL4-UAS system. I have identified 15 axon guidance genes that are essential for survival and normal behavior (climbing, mobility, activity/rest cycle) in adult Drosophila. The results suggests that axon guidance genes are functional in the adult nervous system and may be involved in the maintenance of neural circuits underlying these phenotypes. Further studies on circuit morphology are required to understand better how axon guidance genes contribute to the maintenance of neuronal structure in adult brains.
Medicine, Faculty of
Graduate
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Carden, Frank. "DESIGN PARAMETERS FOR A FM/FM SYSTEM." International Foundation for Telemetering, 1991. http://hdl.handle.net/10150/612916.

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International Telemetering Conference Proceedings / November 04-07, 1991 / Riviera Hotel and Convention Center, Las Vegas, Nevada
Design parameters for a FM/FM telemetry system are determined in terms of the IRIG specifications for proportional bandwidth channels. Three mathematical models used by designers of the above processes are extended and compared. That is, FM multitone models are used to establish the relationship between frequency deviations, modulation indices, signal-to-noise and IF bandwidth for the IRIG channels. Since spectral efficiency and signal quality are of major importance, a goal of the design is to have a minimum IF bandwidth, while fixing as large as possible the values of the modulation indices for the subcarriers modulating the carrier in order to achieve as large as needed output signal-to-noise ratio.
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Jones, Catherine Louise. "Molecular characterisation of an essential membrane transporter system of 'Streptococcus uberis'." Thesis, University of Sussex, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.424206.

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Karim, Kh Nafis. "INTELLIGENT SYSTEM FOR MONITORING PHYSIOLOGICAL PARAMETERS USING CAMERA." Thesis, Mälardalens högskola, Inbyggda system, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-29834.

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Measuring physiological parameters or vital sign using camera has become popular in recent years. Contact-less monitoring and extraction of vital signs can be important source of information in situations like medical care system and safety control system. This paper presents the implementation of real-time, non-contact method for extraction of vital signs, heart rate in this case. A better face tracking method is used for efficient face detection. This study extends some of the previous works done and have a comparison study with several methods. The developed system used filtering with window over the green channel of the signal and then Converted to frequency domain to analyze the signal to detect heart rate. The developed system achieved high correlation and showed small error while referencing with actual heart signal from ECG. This method delivers better result in better light condition but gives fairly good result on lower light as well.
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Books on the topic "The system of essential parameters"

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Frisch, AEleen. Essential System Administration. 2nd ed. Sebastopol, CA: O’Reilly & Associates, 1993.

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Frisch, AEleen. Essential System Administration. Edited by Loukides Mike. Sebastopol, CA: O’Reilly & Associates, 1993.

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Frisch, AEleen. Essential System Administration. Edited by Michael Loukides. 3rd ed. Beijing: O’Reilly Media, 2002.

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Frisch, AEleen. Essential System Administration. 2nd ed. Sebastopol, CA: O'Reilly & Associates, 1995.

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Frisch, AEleen. Essential System Administration. Sebastopol, CA: O'Reilly & Associates, 1992.

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Essential neurosurgery. 2nd ed. New York: Churchill Livingstone, 1997.

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Kaye, Andrew H. Essential neurosurgery. Edinburgh: Churchill Livingstone, 1991.

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Kaye, Andrew H. Essential neurosurgery. Edinburgh: Churchill Livingstone, 1993.

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McCormick-Watson, Jan. Essential English legal system. London: Cavendish Publishing, 1994.

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Essential SCO system administration. Englewood Cliffs, N.J: Prentice Hall PTR, 1995.

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Book chapters on the topic "The system of essential parameters"

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Bounds, Walter M. "A Method for Evaluating Seed Balance Parameters in Alumina Refinery Seed Classifications Systems." In Essential Readings in Light Metals, 608–14. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118647868.ch84.

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Bounds, Walter M. "A Method for Evaluating Seed Balance Parameters in Alumina Refinery Seed Classification Systems." In Essential Readings in Light Metals, 608–14. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48176-0_84.

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Gerostathopoulos, Ilias, and Alexander auf der Straße. "Online Experiment-Driven Learning and Adaptation." In Model-Based Engineering of Collaborative Embedded Systems, 295–303. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-62136-0_15.

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AbstractThis chapter presents an approach for the online optimization of collaborative embedded systems (CESs) and collaborative system groups (CSGs). Such systems have to adapt and optimize their behavior at runtime to increase their utilities and respond to runtime situations. We propose to model such systems as black boxes of their essential input parameters and outputs, and search efficiently in the space of input parameters for values that optimize (maximize or minimize) the system’s outputs. Our optimization approach consists of three phases and combines online (Bayesian) optimization with statistical guarantees stemming from the use of statistical methods such as factorial ANOVA, binomial testing, and t-tests in different phases. We have applied our approach in a smart cars testbed with the goal of optimizing the routing of cars by tuning the configuration of their parametric router at runtime.
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Islam, Mahfuzul, and Hidetoshi Onodera. "Monitor Circuits for Cross-Layer Resiliency." In Dependable Embedded Systems, 385–407. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-52017-5_16.

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AbstractCross-layer resiliency has become a critical deciding factor for any successful product. This chapter focuses on monitor circuits that are essential in realizing the cross-layer resiliency. The role of monitor circuits is to establish a bridge between the hardware and other layers by providing information about the devices and the operating environment in run-time. This chapter explores delay-based monitor circuits for design automation with the existing cell-based design methodology. The chapter discusses several design techniques to monitor parameters of threshold voltage, temperature, leakage current, critical delay, and aging. The chapter then demonstrates a reconfigurable architecture to monitor multiple parameters with small area footprint. Finally, an extraction methodology of physical parameters is discussed for model-hardware correlation. Utilizing the cell-based design flow, delay-based monitors can be placed inside the target digital circuit and thus a better correlation between monitor and target circuit behavior can be realized.
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Layer, Edward. "System Parameters." In Modelling of Simplified Dynamical Systems, 37–42. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-642-56098-9_3.

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Trevett, J. W. "System parameters." In Imaging Radar for Resources Surveys, 16–42. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4089-5_2.

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Chivers, Ian. "System Administration." In Essential Linux fast, 81–107. London: Springer London, 2001. http://dx.doi.org/10.1007/978-1-4471-0301-1_7.

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Crutcher, Paul D., Neeraj Kumar Singh, and Peter Tiegs. "Operating System." In Essential Computer Science, 81–131. Berkeley, CA: Apress, 2021. http://dx.doi.org/10.1007/978-1-4842-7107-0_4.

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Stobart, Simon. "The MySQL Database Management System." In Essential Series, 133–47. London: Springer London, 2002. http://dx.doi.org/10.1007/978-1-4471-0209-0_11.

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Cohen, Paul, and Jorge Plutzky. "Diabetes and the Cardiovascular System." In Essential Cardiology, 701–14. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-6705-2_41.

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Conference papers on the topic "The system of essential parameters"

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Lawal, Lasisi S., and Chris R. Chatwin. "Essential parameters of Space-Borne Oscillators that ensures performance of Satellite-Based Augmentation System." In Technology (ICAST). IEEE, 2011. http://dx.doi.org/10.1109/icastech.2011.6145156.

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Simi, Tang, Shijian Zhu, and Jingjun Lou. "Study of the Relationship Between Parameters and Effectiveness of Essential Nonlinear Absorber." In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-87233.

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The two degree-of-freedom (dof) system consisting of a linear oscillator coupled with a essential nonlinear absorber is studied, which is under periodic excitation. Applying harmonic balance technique, we derive a set of modulation equation that is directly amenable to characteristic of amplitude-frequency of the system. Conclusion can be summarized: With some parameters, the absorber performs effectively over a broad range of frequency; but the amplitude of linear oscillator may jump suddenly for the change of parameters. The effectiveness of absorber is also affected by the forcing, that is different from classical absorber. The relationship between parameters and effectiveness of essential nonlinear absorber are determined and the parameter region seems to comply with some rules.
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Fiorina, Jocelyn, and Daniele Domenicali. "Revisiting TH-IR-UWB performance limits dependency on essential system parameters using the Generalized Gaussian Approximation." In 2007 IEEE International Conference on Ultra-Wideband. IEEE, 2007. http://dx.doi.org/10.1109/icuwb.2007.4381044.

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Liu, Song, and Bin Yao. "On-Board System Identification of Systems With Unknown Input Nonlinearity and System Parameters." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-79420.

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Input nonlinearities, or actuator nonlinearities, can be seen in a lot of systems and have significant effects on the system performance. From the controller design point of view, accurate yet simple model of input nonlinearities is essential to compensate their effects and to achieve high level control performance. Unfortunately, most input nonlinearities are neither known nor easy to characterize, especially when the input nonlinearities and unknown system parameters are present simultaneously in the system dynamics. Off-board calibration may be possible yet it is very time consuming and requires additional calibration systems. This paper focuses on a class of systems with unknown input nonlinearities and system parameters and proposes an on-board system identification process to model the unknown nonlinearities. The input nonlinearities are decomposed into localized orthogonal basis and then estimated together with the system parameters. The proposed method is applied to model the nonlinear flow mapping of cartridge valves. Simulation and experimental results are obtained to illustrate the effectiveness and practicality of the proposed method.
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Bodzenta-Lukaszvk, A., K. Krupiński, and M. Bielawiec. "PLATELET FUNCTION AND KALLIKREIN SYSTEM IN PATIENTS WITH ESSENTIAL HYPERTENSION." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644258.

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Since the pathogenesis of hypertension is still discussed the aim of this study was to investigate behaviour of platelets and kallikrein system in patients suffering from this disease. In 30 patients with essential hypertension, aged 23-31 years and 20 normotensive healthy subjects, aged 21-35 years the following parameters of platelet function were studied: platelet aggregation induced with ADP,platelet activating factor (PAF) and arachidonic acid (AA) according Born's method, plasma beta-thromboglobulin (Beta-TG) and platelet factor 4 (PF4) , plasma thromboxane B2 (TXB2) and cyclic AMP using radioimmunoassay kits. The activity of kallikrein and factor XII was also determined using Chromo-zym PK (Boehringer Mannheim GmbH). The hypertensive patients demonstrated a greater platelet aggregability by ADP and PAF, elevated concentrations of Beta-TG and TXB2 as well as decreased level of cyclic AMP in comparison to normotensive subjects. No significantly changes in platelet aggregability by AA and activity of PF4 were found in the group of hypertensive patients. There were also significantly decreased plasma concentrations of kallikrein and factor XII in these patients. Obtained results have shown hyperfunction of blood platelets and depletion of kallikrein system in the patients with essential hypertension. These results suggest that among different pathogenic factors function of blood platelets and kallikrein system should be taken into consideration.
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Cheng, Shunfeng, Michael Azarian, and Michael Pecht. "Sensor System Selection for Prognostics and Health Monitoring." In ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/detc2008-49907.

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Data collection is an essential part of prognostics and health monitoring, and often requires the use of sensor systems to measure environmental and operational parameters. In this paper, the considerations for sensor system selection for prognostics and health monitoring implementation are discussed and some state-of-the-art sensor systems for prognostics are described. Finally, emerging trends in sensor system technologies are presented.
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Musienko, Andrey I., and Leonid I. Manevitch. "Comparison of Passive and Active Energy Pumping in Mechanical Nonlinear System." In ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/detc2005-84806.

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We describe nonlinear dynamics of essentially non-homogeneous system of coupled oscillators using the technique of multi-scale expansions. The resonant mechanism of passive energy transfer from a massive oscillator into a light auxiliary one provides essential reduction of energy of the massive oscillator. Proposed active control algorithm increases noticeably the efficiency of energy transfer in comparison with passive control. The important advantage of this algorithm is that it provides a small consumption of energy. It is expedient to use our algorithm in the certain limits of parameters determined in the paper. This algorithm provides a necessary level of reduction of oscillator amplitude in a wide range of external perturbations.
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Carassale, Luigi, Vincent Denoël, Carlos Martel, and Lars Panning-von Scheidt. "Identification of the Essential Features of the Transient Amplification of Mistuned Systems." In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-15693.

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Abstract The dynamic behavior of bladed disks in resonance crossing has been intensively investigated in the community of turbomachinery, addressing the attention to (1) the transienttype response that appear when the resonance is crossed with a finite sweep rate and (2) the localization of the vibration in the disk due to the blade mistuning. In real conditions, the two mentioned effects coexist and can interact in a complex manner. This paper investigates the problem by means of analytic solutions obtained through asymptotic expansions, as well as numerical simulations. The mechanical system is assumed as simple as possible: a 2-dof linear system defined through the three parameters: damping ratio ξ, frequency mistuning Δ, rotor acceleration Ω˙. The analytic solutions are calculated through the multiple-scale method.
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Croce, Silvia, and Daniele Vettorato. "Urban parameters analysis and visualization." In 55th ISOCARP World Planning Congress, Beyond Metropolis, Jakarta-Bogor, Indonesia. ISOCARP, 2019. http://dx.doi.org/10.47472/itwn5490.

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Several mitigation and adaptation strategies are proposed to tackle the environmental issues associated to massive urbanization and climate change. All these solutions are highly related to the utilization of urban surfaces (i.e. building envelopes, streets, public spaces, etc.). However, the existing trends demonstrate the lack of a systemic approach able to integrate multiple possible functions and avoid sub-optimal solutions. In this context, urban planning can play an essential role in managing conflicts among different surface uses and ensuring their integration. This involves making spatially explicit decisions about the types of surface use allowable, and their extent and location. The decision-making process needs to be supported by accurate and detailed knowledge about the spatial distribution of a variety of parameters that influence the surface uses in cities. This study presents a systematic framework to support planning decisions based on accurate, diverse and spatially explicit information, and discusses its application in a residential district located in Bolzano (Italy). The proposed method implies the assembly of a multivariate spatial database of significant morphological and environmental parameters acquired through environmental simulation techniques and on-site data collection. The three-dimensional visualization of this database represents a solid base to relate urban planning decisions on surface uses to their effects in terms of microclimatic conditions, thermal comfort, and on-site renewable energy production.
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Ac¸ikbas¸, Su¨leyman, and M. Turan So¨ylemez. "Parameters Affecting Braking Energy Recuperation Rate in DC Rail Transit." In ASME/IEEE 2007 Joint Rail Conference and Internal Combustion Engine Division Spring Technical Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/jrc/ice2007-40023.

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Rail systems are well-known for their energy efficiency. Energy resources used in mass rail transit systems is predominantly electricity around the world. Energy consumption of a wide mass rail transit network operator in a city can easily be the biggest electricity consumer of the city. Therefore, it is very important that the efficiency is increased. This is also an essential requirement for sustainable development. Some trains used in mass transit systems are equipped with regenerative braking. This allows trains to brake in regenerative mode and feed the other trains on the line, if there is a demand. Researches showed that up to 40% of the total traction energy consumption could be supplied by this regenerative braking energy, if it is 100% used. This usage rate depends on many different parameters such as train operation frequency (headway), train-set auxilary power consumption rate, nominal braking acceleration rate, braking effort vs. velocity curve of trains. Power system configuration such as substation locations and distances, catenary system resistance, and nominal power feeding voltage level has also considerable effect on recuperation rate. In the paper, some of these parameters’ impacts will be examined with the help of a multi-train, multi-line DC rail system simulator. The results will be given in comparison tables and discussed. Lastly, new emerging technologies such as flywheels and super capacitors to capture the un-used braking energy will be briefly given.
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Reports on the topic "The system of essential parameters"

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Al-Hijazeen, Marwan, Dong Uk U. Ahn, and Aubrey F. Mendonca. Effect of Oregano Essential Oil on the Storage Stability and Quality Parameters of Ground Chicken Breast Meat. Ames (Iowa): Iowa State University, January 2018. http://dx.doi.org/10.31274/ans_air-180814-288.

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Nguyen, Cuong M., and Steven L. Howell. Systems Design Factors: The Essential Ingredients of System Design, Version 0.4. Fort Belvoir, VA: Defense Technical Information Center, March 1994. http://dx.doi.org/10.21236/ada277702.

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Knafelc, M. E. Advanced Seal Delivery System Life Support Parameters. Fort Belvoir, VA: Defense Technical Information Center, December 1993. http://dx.doi.org/10.21236/ada275304.

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Hoyle, J. R. Design criteria document, electrical system, K-Basin essential systems recovery, Project W-405. Office of Scientific and Technical Information (OSTI), December 1994. http://dx.doi.org/10.2172/10117034.

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Kats J. M. BUCKET PARAMETERS AND BUNCHING FACTOR FOR DOUBLE RF SYSTEM. Office of Scientific and Technical Information (OSTI), August 1993. http://dx.doi.org/10.2172/1151285.

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Bhatele, Abhinav, Nikhil Jain, Yarden Livnat, Valerio Pascucci, and Peer-Timo Bremer. Evaluating System Parameters on a Dragonfly using Simulation and Visualization. Office of Scientific and Technical Information (OSTI), April 2015. http://dx.doi.org/10.2172/1241972.

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Hurtado, L. D., M. K. Knowles, V. A. Kelley, T. L. Jones, J. B. Ogintz, and T. W. Pfeifle. WIPP shaft seal system parameters recommended to support compliance calculations. Office of Scientific and Technical Information (OSTI), December 1997. http://dx.doi.org/10.2172/563218.

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Woods, Mark, and Michael Matuszewski. Quality Guideline for Energy System Studies: Process Modeling Design Parameters. Office of Scientific and Technical Information (OSTI), January 2012. http://dx.doi.org/10.2172/1513276.

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Shirley, Pamela, and Paul Myles. Quality Guidelines for Energy System Studies: CO2 Impurity Design Parameters. Office of Scientific and Technical Information (OSTI), January 2019. http://dx.doi.org/10.2172/1566771.

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Woods, Mark, and Michael Matuszewski. Quality Guideline for Energy System Studies: CO2 Impurity Design Parameters. Office of Scientific and Technical Information (OSTI), January 2012. http://dx.doi.org/10.2172/1556902.

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