... of a DVA to reduce the vibration amplitude of primary system The parameters of primary system are listed in Table 1 Table 1 Parameters of primary system Parameter Variable Value Unit damping ... s a s s a s a a a a a s a a a a (3) Eq (3) denotes a set of linear algebraic equations with two unknowns usand ua It follows that 2 0 0 , , s s a a u F k ic u (4) and 2 0 (5) The formula ... the Taguchi’s method, this paper presents a procedure for designing the optimal parameters of a dynamic vibration absorber attached to a damped primary system The values of the optimal parameters
Ngày tải lên: 03/03/2020, 21:07
... exergoeconomic analysis of the system at each iteration and on several qualitative and quantitative objective criteria, a hierarchical classification of the system components, and the associated subsets of ... with a pointful appraisal of the mathematical optimization and exergoeconomic improvement of energy systems modeled in a professional thermodynamic process simulator First, for mathematical optimization, ... analysis of the Trang 8system at the beginning of each iteration is performed The analysis provides information to hierarchically classify the components as main, secondary, and remainder, and
Ngày tải lên: 05/09/2013, 16:30
Báo cáo hóa học: " Research Article Dynamics of a Rational System of Difference Equations in the Plane" pot
... ´an2 1 Departamento de Matem´atica Aplicada II, E.T.S.E Telecomunicaci´on, Universidade de Vigo, Campus Marcosende, 36310 Vigo, Spain 2 Departamento de Matem´atica Aplicada, E.T.S.I Industriales, ... when the associated matrixA has an eigenvalueλ such that −λ is also an eigenvalue Since A is a 3 × 3 square matrix, this Trang 5obviously implies that the trace ofA is also an eigenvalue Hence, ... remainder of the division ofx nby the characteristic polynomial ofA Further, by elementary techniques of linear algebra one can also compute them in terms of the eigenvalues ofA an approach
Ngày tải lên: 21/06/2014, 05:20
Báo cáo hóa học: "ASYMPTOTIC BEHAVIOR OF A COMPETITIVE SYSTEM OF LINEAR FRACTIONAL DIFFERENCE EQUATIONS" docx
... n →∞.AfixedpointE is a global attractor on a set if E is an attractor and is a subset of the basin of attraction of E.IfF is differentiable at afixedpointE, and if the Jacobian J F (E) has one ... equilibrium of this system which is the graph of an increasing curve. We show that the stable manifold of this system separates the positive quadrant of initial conditions into basins of attraction of ... linear fractional systems. We will formulate this statement as a conjecture. In [12] we showed that in cases (5) and (6) an introduction of the positive parameters a and d changed the global behavior
Ngày tải lên: 22/06/2014, 22:20
THE DIRECT REPROGRAMMING OF SOMATIC CELLS: ESTABLISHMENT OF A NOVEL SYSTEM FOR PHOTORECEPTOR DERIVATION
... conceptualized as, and has indeed been strated to be, a highly dynamic, multi-dimensional space As an accepted rule, mi-croarray data of global gene expression profiles demonstrates the highly dynamicnature ... yield a nearly mountable set of data to analyze given the number of combinations of a set number oftranscription factors that can be designed, it was important to establish a screeningsystem to narrow ... (right panel) offers a view on the global dynamics by assigning to each point S in the state space a ‘quasi-potential’ U(S) that is inversely related to the approximate relativestability of S,
Ngày tải lên: 24/08/2014, 12:37
A behaviour based algorithm for encirclement of a dynamic target using multiple mobile robots
... Balch and Arkin have shown that formation behaviour can be integrated into a motor-schema behaviour-based system with other navigational behaviours so that a robotic team can reach navigational ... bc and ca are drawn with radii equal to D, from the vertices c, a and b Triangle abc is also an equilateral triangle with sides equal to D In another study, Yun, Alptekin, and Albayrak have ... First of all, a field of 4m x 4m is selected and the target is always located at the centre The robots are initially located at a distance of 1.6 m from the target However, the orientation of each
Ngày tải lên: 15/09/2015, 22:43
Design and control of a teleoperation system for humanoid walking
... complicated in terms of control, maintenance of balanceand also the generation of a valid walking pattern Nevertheless, dynamic walking is abetter approach due to the fact that dynamic walking ... full information for the hardware andsoftware interface sys-The humanoid robot weighs 6kg and stands 48cm tall It has a total of 20 Degree ofFreedom (DOF) - 6 DOF each leg and 4 DOF each arm The ... human’s arm canfit, and the joints of the exoskeleton are aligned with the human joints The slave robotmust then have the same kinematic equations as the human arm One advantage of thisapproach
Ngày tải lên: 04/10/2015, 10:25
Slide matlab based transient stability analysis of a power system
... δ1,δ2) ∫ Pa (d δ) =A2 (negative area); Trang 16 A 1= Area of acceleration A2= Area of deceleration If the area of acceleration is larger than the area of deceleration, i.e., A 1 > A2 The ... utilization of existing power systems Transient stability of a transmission is a major area of research from several decades Transient stability restores the system after fault clearance Any ... will eventually attain the steady state If the two areas are equal, i.e., A 1 = A 2 , then the accelerating area is equal to decelerating area and this is defines the boundary of the stability limit
Ngày tải lên: 03/12/2016, 14:16
Development of a recommender system for the selection of software architecture methods
... Employees Year 2012 • usage of several thousands of applications and a huge IT-landscape • high demand on software architecture knowledge & management Leads to … Trang 5Background and motivationSiemens ... focuses practical use of artefact as well as a scientific approach Added value • DS is captured in the “build and then evaluate” cycle • Focus on building artefacts and relegate evaluation to a subsequent ... & separate phase • Scant attention to the shaping of IT artefacts by the organizational context • Fails that the artefacts emerges from interaction with the organization Need for a research
Ngày tải lên: 10/12/2016, 15:36
Identification of mimo dynamic system using inverse mimo neural narx model
... schematic diagram of the 2-axes PAM robot arm and the photograph of the experimental apparatus are shown in Fig.3 and Fig.4, respectively Both of joints of the 2-axes PAM robot arm are modeled and ... characteristic of the 2-axes PAM robot arm system The 2-axes PAM robot arm’s coupled dynamics was taken into account Results of training and testing on the complex dynamic systems such as 2-axes PAM ... weights are the adjustable parameters of the network, and they are determined from a set of examples through the process called training The examples, or the training data as they are usually called,
Ngày tải lên: 13/01/2020, 13:31
Optimum design of a CCHP system based on Economical, energy and environmental considerations using GA and PSO
... Electrical load Cooling load Heating load Storage tank + + + Heat exchanger Fig 1 Schematic of a CCHP system (Sanaye & Hajabdollahi, 2015) Operational planning of CCHP systems is usually conducted ... determination of the equipment’s capacity as the main goal Wang et al (2010) designed a CCHP system with consideration of PGU and storage tank capacity as decision variables On-off coefficient and Trang ... several smaller PGUs instead of a single large-capacity PGU could be beneficial in some cases At the first glance, deployment of several PGUs will dramatically increase the capital cost of the system;
Ngày tải lên: 14/05/2020, 22:35
A constructive algorithm to maximize the useful life of a mechanical system subjected to ageing, with non-resuppliable spares parts
... relevant number of papers dealing with spare parts management, the case of repairable mechanical systems that must operate for a long time, but that cannot receive supplies of spare parts, has ... mechanical system is installed, reliability data are not available and a major problem concerns the choice of the initial set of spare parts that should be purchased (Do Rego & De Mesquita, ... studied Classic examples may be that of a ship, a submarine or a space base (in Earth orbit), that must continuously operate for a long mission time, far away from the operating base and/or in inaccessible
Ngày tải lên: 14/05/2020, 22:48
Construction of a VPN system for remote programming and monitoring of environmental parameters for serving plant production in greenhouses
... and adjust the quality of the system to ensure accuracy and stability at the experimental site The goals of the tests were to evaluate and analyze the growth environment of crops based on the data ... the outstanding advantages of VPNs, in the near future, it is going to become a popular technology Materials and Methods Planting techniques and plant care, as well as the factors affecting ... several popular applications such as Martin et al (2016) who managed a blueberry farm and monitoring system using a PLC based on a wireless sensor network; and Sindhu et al (2016) who used a
Ngày tải lên: 22/05/2020, 01:48
Social developmental delays among 3 to 6 year old children in preschools in German social hotspots: Results of a dynamic prospective cohort study
... IX220a] The funders had no influence on the data analysis and publica-tion of the results. Availability of data and materials The datasets generated and/or analyzed during the current study are ... Biermann* , Marco Franze and Wolfgang Hoffmann Abstract Background: Social skills are valid predictors for school readiness and subsequent school success The federal state law for child day-care and ... Mecklenburg-Western Pomerania Trang 4Study design The evaluation of the federal state law for child day-care and preschools in Mecklenburg-Western Pomerania started in 2011 and is designed as a dynamic prospective
Ngày tải lên: 29/05/2020, 19:30
The development of a classification system for moniitoring physical activity using a miniaturized 3 axis accelerometer
... classification is a two-phase process as follows Phase 1-Training phase A model that describes a predetermined set of classes was built by analyzing a set of training data The half of data library ... nature First, considering the basic daily activity, we made an analysis of measured acceleration signals of different activities and then some particular features was extracted as a presentation ... the target activities by only small adjustments in retraining and software update SVM generates a small amount of support vectors (SVs) as a representation of the specific classes as separate
Ngày tải lên: 29/01/2021, 14:14
Satisficing strategy in development of a port system viet nam case study
... Geography cooperation in maritime industry 1 Trang 11List of Abbreviations A ASEAN Association of Southeast Asian Nations APEC Asia-Pacific Economic Cooperation ALTID Asian Land Transport Infrastructure ... ten countries, namely Brunei Darussalam, Cambodia, Indonesia, Laos PDR, Malaysia, Myanmar, Philippines, Singapore, Thailand and Viet Nam (Source: ASEAN) ASEAN aims to make a social progress, culture ... only intra- but also extra-ASEAN and particular Viet Nam Necessarily, seaport that is a place at which the transfer of cargo and passengers to Trang 24and from waterways and shores occurs (Talley,
Ngày tải lên: 31/01/2021, 23:18
slide 1 english 10 unit 5 technology and you part a reading teacher quynh tram welcome to our class a computer 1 work in groups look at the illustrations of different parts of a computer system matc
... doing almost anything you ask it to do • -It is a calculating machine which speeds up calculations • - It is an electronic storage device which manages large collections of data • - It is a magical ... you ask It can speed up calculations It can manage large / collection of data It can type and print any kind of documents Help us visit anywhere. Pay all kinds of bills with newspapers ... computer a miraculous device? Trang 131.What can a computer do to help us in our daily life? • It can help us visit shops, offices, and places of scenic beauty; pay bills; read newspapers and magazines;
Ngày tải lên: 13/04/2021, 05:15
Results of a Placement System for the First College Mathematics Course
... Valdosta State University, alazari@valdosta.edu Follow this and additional works at: https://digitalcommons.gaacademy.org/gjs Recommended Citation Harrell, Gregory and Lazari, Andreas (2020) ... editor of Digital Commons @ the Georgia Academy of Science Trang 2RESULTS OF A PLACEMENT SYSTEM FOR THE FIRST COLLEGE MATHEMATICS COURSE Gregory Harrell and Andreas Lazari* 1Department of Mathematics, ... Mathematics, Valdosta State University, Valdosta, Georgia, 31698 alazari@valdosta.edu *Corresponding author ABSTRACT The success or lack of success in the first college mathematics course that
Ngày tải lên: 30/10/2022, 17:47
a combination of a dynamic geometry software with a proof assistant for interactive formal proofs
... Trang 1A Combination of a Dynamic Geometry Software With a Proof Assistant for Interactive Formal Proofs Inria Sophia Antipolis Abstract This paper presents an interface for geometry ... Java and thus available for multiple platforms It provides a new kind of tool for mathematics by joining geometry, algebra and calculus It received several international educational software awards ... in Java, the same programming language as Geogebra, so this makes it easy to be integrated in Geogebra Pcoq manipulates all formulas and commands as tree-like structures (also known as abstract
Ngày tải lên: 01/11/2022, 08:29
a new approach to quantized stabilization of a stochastic system with multiplicative noise
... σδ tj, and is uncor-related with initial state x As proved in [], the coarsest static quantizer for the system () to be quadratically mean-square stabilized via quantized state-feedback is ... stochastic system () and the quantized state feedback control law in the form of (), given a logarithmic quantizer as in (), the closed-loop system () is mean-square poly-quadratically stable ... design of quantized feedback systems The study of quantized feedback control can be traced back to [] Most of the early re-search focuses on the understanding and mitigation of the quantization
Ngày tải lên: 01/11/2022, 08:32