The problem of designing a feedback system with prescribed properties is attacked via fractional representation approach to analysis and synthesis. To this end we let <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">H</tex> denote ring operators the model given plant as ratio two in . This, turn, leads simplified test determine whether or not which that embedded has complete characterization those compensators will "place" theory formulated...

Unlike the many soft computing applications where it suffices to achieve a "good approximation most of time," control system must be stable all time. As such, if one desires learn law in real-time, fusion techniques appropriate with hard maintain stability constraint and guarantee convergence is required. The objective paper describe an adaptive dynamic programming algorithm (ADPA) which fuses optimal cost (or return) functional for stabilizable nonlinear unknown dynamics verify algorithm....

The results of a study the electrochemical intercalation lithium into Lonza KS15 artificial graphite in 1M PC/EC (50:50) electrolyte are presented here. Electrolyte decomposition reactions occur during first discharge at about 0.8 V vs. Li metal and their extent is greatly reduced by addition crown ethers with 12 4 being most effective. A mechanism proposed for which includes least two types process, namely, propylene ethylene evolution formation on surface solid interphase film alkyl...

An explicit relationship between the fractional representation approach feedback system design and algebro-geometric to theory, is formulated used derive a global solution problem. These techniques are then applied simultaneous stabilization problem, yielding natural geometric criterion for set of plants be simultaneously stabilized by single compensator.

Abstract It is shown that a multivariable digital filter stable if and only A(z1, z2…,zn)≠0 when | z1 1| = z2|=… |zn| 1 the Nyquist plot for single-variable function A(z, z, … z) does not encircle zero. Here z2… zn) denominator polynomial of relatively prime rational transfer filter.

The vapor pressures over benz[a]anthracene (B[a]A), benzo[a]pyrene (B[a]P), benzo[e]pyrene (B[e]P), benzo[ghi]perylene (B[ghi]P), and coronene have been measured using the Knudsen effusion weight loss method. parameters A B in equation log 10 [p(atm)] = -(A/T) + enthalpies of sublimation kcal mol −1 derived therefrom are respectively: B[a]A, 5925 ± 36, 10.045 0.099, 27.12 0.54; B[a]P, 6181 32, 9.601 0.083, 28.29 0.51; B[e]P, 6220 33, 9.736 0.085, 28.46 0.55; B[ghi]P, 6674 40, 9.519 0.093,...

The problem of designing a compensator for specified plant which simultaneously stabilizes the resultant feedback system and causes it to track prescribed family inputs and/or reject disturbances is considered. A set linear design equations, in space stable systems, formulated general systems setting an explicit parameterization solution obtained class "generalized multivariate" systems. theory illustrated with several single multivariate examples.

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEnthalpies of decomposition and heat capacities ethylene oxide tetrahydrofuran hydratesD. G. Leaist, J. Murray, M. L. Post, D. W. DavidsonCite this: Phys. Chem. 1982, 86, 21, 4175–4178Publication Date (Print):October 1, 1982Publication History Published online1 May 2002Published inissue 1 October 1982https://pubs.acs.org/doi/10.1021/j100218a017https://doi.org/10.1021/j100218a017research-articleACS PublicationsRequest reuse permissionsArticle...

A simple, physically insightful method for dynamic modeling of manipulators containing closed kinematic chains is presented. Founded on D'Alembert's principle, the centers around a transformation from well-understood dynamics serial and open-chain mechanisms to closed-chain robot models. The framework model fosters straightforward extensions engineering activities in areas digital simulation, real-time control, parameter identification, optimal path planning manipulators. algorithms needed...

Sea spray within the lowest meter of atmospheric surface layer was measured with an optical instrument supported on a raft. Sizes droplets appear to follow two‐segment equilibrium spectrum; division two size regions production zone (the ejection range jet drops), however, differs from that outside. Vertical distributions droplet concentrations vary greatly size; critical diameters for suspension under various wind velocities are determined. The mass at elevations were also obtained....

The equilibrium As4(g)=2As2(g) has been studied in detail over solid phase MoAs2 and Mo2As3 using the Knudsen effusion technique combined with a mass spectrometer. A ``see-through'' ion source liquid-nitrogen cooled condensation plate were used to eliminate spurious As4(g) which encountered by other investigators. Excellent agreement was obtained between second- third-law enthalpies. From constants measured 807 1050°K, following heats determined: As4(g)=2As2(g), Δ H0°=53.95± 1.1,...

An electrolyte system which consists of chloroethylene carbonate and propylene has been developed for lithium ion batteries containing a graphitic anode. The decomposition during the first intercalation into graphite in based is significantly reduced presence carbonate. Formation stable passivation film on surface believed to be reason improved cell performance.

Abstract In 1984, the authors unveiled computer program Algebraic Robot Modeler (ARM) for symbolic generation of complete closed‐form dynamic robot models. this paper, we introduce computational dynamics as synthesis classical mechanics and software numeric modeling robotic mechanisms, branch‐out in three directions. First, outline foundations dynamics. From its inception (in 1973), review chronologically contributions prominent roboticists, tracing parallel development formulations We then...

The electrolyte decomposition during the first lithiation of graphite is reduced to 90 mAh/g in an containing equal volumes chloroethylene carbonate and a cosolvent propylene carbonate, dimethyl or diethyl carbonate. volume fraction can be further 0.05 trisolvent system with ethylene A lithium‐ion cell shows long cycle life. capacity decreases by 20% from initial value over 800 cycles. charging efficiency 80 90%, rate dependent, accompanied self‐discharge mechanism. hypothesis chemical...

A decentralized adaptive control system (ACS) for a four motor-generator four-wheel drive hybrid electric vehicle (HEV) is designed and its ability to deal with unknown tire dynamics, changing road surfaces, loading evaluated. composed of separate controllers the vehicle's speed, steering, side slip, energy management system. nonlinear simulation model dynamics power train components developed used evaluate performance ACS, while simultaneously turning accelerating or braking under varying...

The computer program ARM (Algebraic Robot Modeler) has been implemented to generate symbolically the forward solution and complete Lagrangian dynamic robot model for control engineering applications. Development application of this versatile modeling tool are highlighted in paper. Q matrix formulation is employed develop nested iterative algorithms symbolic computation inertial, centrifugal Coriolis, gravitational components model. computational requirements enumerated as functions number...