physical stability of dispersed systems

... and van’t Hoff enthalpies (Horn et al., 2001), proving the advantage of using ITC to determine enthalpy changes 4 Thermodynamics – Physical Chemistry of Aqueous Systems General aspects of ITC 3.1 ... Ka = 6·105 M-1, with a stoichiometry of mol of ligand per mol of trimeric enzyme, a concentration of macromolecule of approximately 20 µM yields a C-value of 36, within its ideal 10-100 range ... signals Finally, in most experiments the heat effect of the first injection of a series of Thermodynamics – Physical Chemistry of Aqueous Systems injections is obviously too small This results...

Ngày tải lên: 09/04/2015, 17:20

... assertions ✷ Solution stability of variational systems Lipschitzian stability of (parametric) variational systems are investigated in this section The coderivative formulas of implicit multifunctions ... solution stability criteria for the above parametric variational systems via the coderivative formulas of the normal cone operator in infinite dimensional spaces because of the surprising property of ... convex subset U of X is Fr´echet differentiable on a dense subset of U The class of Asplund spaces is large For instance, it contains the class of reflexive Banach spaces The calculus of normal cones...

Ngày tải lên: 12/10/2015, 10:46

... the use of absolute stability of Lurie control systems to consider the synchronization of two Chua circuits New concepts are proposed for the absolutely exponential stability of error systems, ... absolute stability theory, which is a natural extension of the stability of linear feedback systems Since then, the absolute stability theory played the main role in the stability analysis of nonlinear ... systems described by ordinary differential equations We obtain the necessary and sufficient conditions for absolute stability of various Lurie control systems The absolute stability of these systems...

Ngày tải lên: 01/01/2014, 17:47

... Golden, CO of the U.S Department of Energy with purchase order 165134 of June 3, 1999 This support is gratefully acknowledged The encouragement of Dr Stefan Czernik of NREL, Mr Jan Piskorz of Resource ... 38 v A REVIEW OF THE CHEMICAL AND PHYSICAL MECHANISMS OF THE STORAGE STABILITY OF FAST PYROLYSIS BIO-OILS ABSTRACT Understanding the fundamental chemical and physical aging mechanisms ... rate of formation of aldehyde hydrates was said to be quite rapid (Adkins and Broderick 1928a) The reaction of formaldehyde in an excess of water had a half-life of only 70 ms at 22ºC The ratio of...

Ngày tải lên: 19/06/2014, 14:02

... and Lagrange stability and the classical notion of boundedness and Lagrange stability for fractional order differential systems The classical notions of boundedness and Lagrange stability are ... Leela, S, Martynyuk, AA: Stability Analysis of Nonlinear Systems Marcel Dekker, New York (1989) 11 Li, Y, Chen, YQ, Podlubny, I: Stability of fractional-order nonlinear dynamic systems: Lyapunov direct ... 1, 50–66 (2000) 19 Yakar, C: Strict Stability Criteria of Perturbed Systems with respect to Unperturbed Systems in term of Initial Time Difference Proceedings of the Conference on Complex Analysis...

Ngày tải lên: 20/06/2014, 22:20

... robust control of fractional differential systems with delays They delt with the BIBO stability of both retarded and neutral fractional delay systems Zhang [16] established the existence of a unique ... − rn ))}ds, t > Stability In this section we study the stability of the solution of the non-local problem (1)-(3) Definition The solution of the non-autonomous linear system (1) is stable if for ... EMA: Stability for a non-local non-autonomous system of fractional order differential equations with delays Elec J Diff Equ 31, 1–10 (2010) Abd-Salam, SA, El-Sayed, AMA: On the stability of some...

Ngày tải lên: 20/06/2014, 22:20

... interest of this paper is concerned with the positivity and stability of solutions independent of the sizes of the delays and also being independent of eventual coincidence of some values of delays ... dynamic systems, ” International Journal of Systems Science, vol 14, no 4, pp 367–383, 1983 25 M De la Sen and N Luo, “On the uniform exponential stability of a wide class of linear time-delay systems, ” ... independent of the sizes of the delays and the stability properties of linear time-invariant fractional dynamic differential systems subject to point delays may be characterized with sets of precise...

Ngày tải lên: 21/06/2014, 05:20

... our proof greatly It is easy to see from the proof that this main nonlinearity is used to guarantee the small twist condition 4 Boundary Value Problems The Proof of Theorem The proof of Theorem ... curve of the Poincare mapping, which guarantees the boundedness of solutions of the system 2.11 Hence, all the solutions of 1.9 are bounded References J Littlewood, “Unbounded solutions of y ... ×S1 be a finite part of cylinder C S1 ×R, where S1 R/2πZ, we denote by Γ the class of Jordan curves in C that are homotopic to the circle r constant The subclass of Γ composed of those curves lying...

Ngày tải lên: 21/06/2014, 07:20

... S: Stability analysis for neutral delay-differential systems J Frankl Inst 337(1), 1–9 (2000) [2] Chen, J, Lien, CH, Fan, KK, Chou, JH: Criteria for asymptotic stability of a class of neutral systems ... encountered in various engineering systems such as chemical processes, long transmission lines in pneumatic systems, networked control systems, etc., the study of delay systems has received much attention ... conditions for the stability of the systems in terms of linear matrix inequality (LMI) which can be easily solved by various convex optimization algorithms Some delay-independent stability criteria...

Ngày tải lên: 21/06/2014, 20:20

... Zhang, “Estimate of total stability of delay difference systems, ” Computers & Mathematics with Applications, vol 37, no 9, pp 31–38, 1999 12 S A Kuruklis, “The asymptotic stability of xn − axn bxn−k ... 6–9, pp 1195–1202, 2003 10 J Schinas, Stability and conditional stability of time-dependent difference equations in Banach spaces,” Journal of the Institute of Mathematics and Its Applications, ... the stability of the solutions of such equation However, the case of variable coefficients is not studied in this article In the next corollary, we will apply Theorem 3.3 to this particular case of...

Ngày tải lên: 22/06/2014, 06:20

... (2006) A note on the stability of time-delay systems In: ROCOND Toulouse Submitted Gu, K (1997) Discretized LMI set in the stability problem of linear uncertain time-delay systems Internat J Control ... systems Kybernetika 37(4), 479–504 Gu, K., K.L Kharitonov and J Chen (2003) Stability of Time-Delay Systems Control Engineering Series Birkhauser Boston USA Han, Q.L (2002) Robust stability of ... for the stability of linear delay systems of retarded and neutral type IEEE Trans Aut Control 47(2), 327–335 Castelan, E.B., i Queinnec and S Tarbouriech (2003) Sliding mode time-delay systems...

Ngày tải lên: 06/07/2014, 21:20

... Summary Summary Switched systems are a particular kind of hybrid systems that consist of a number of subsystems and a switching rule governing the switching among these subsystems Due to their importance ... topics, the stability analysis and controller synthesis of switched systems are studied in this thesis It is the existence of switching that makes the stability issues of switched systems very ... stabilizability of second-order switched linear systems with any finite number of subsystems On the other hand, switched systems provide a powerful approach for the identification and control of nonlinear systems...

Ngày tải lên: 09/09/2015, 11:27

... brief overview of gPC expansion theory, and then focus on the stability analysis of the relatively simple case of systems with a single uncertain parameter Chapter Stability Analysis of Systems with ... text Chapter Stability Analysis of Systems with A Single Uncertain Parameter Chapter Stability Analysis of Systems with A Single Uncertain Parameter In this thesis, we study the stability analysis ... set of real numbers Rn set of n-dimensional real vectors R+ set of non-negative real numbers Rω set of infinite-dimensional real vectors N the set of all natural numbers including or the set of...

Ngày tải lên: 10/09/2015, 09:25

... Appendix of Chapter 108 A.1 Proof of Lemma 2.2 108 A.2 Proof of Lemma 2.3 109 A.3 Proof of Lemma 2.4 109 A.4 Proof of Theorem ... variations of the constants of integration of the subsystems 2.2 Constants of Integration The concept of constants of integration is introduced by analyzing the phase diagrams of switched systems ... quadratic stability is equivalent to asymptotic stability, and (ii) the stability of subsystems guarantees not only the existence of a quadratic Lyapunov function but also the stability of the arbitrarily...

Ngày tải lên: 11/09/2015, 10:16

... boundaries, etc.) Examples of open systems are: groundwater systems, social systems, as well as most of the natural systems Four types of variables characterize a model of a system (Kramer and De ... promoter University of Twente, assistant promoter Prof dr.ir A.Y Hoekstra Prof dr.ir H.G Wind Prof dr.ir A.E Mynett Prof dr S.M de Jong Dr M.J Titus University of Twente University of Twente UNESCO-IHE ... five different types of integration within the framework of Integrated Assessment Modelling (IAM) These are integrations of disciplines, of models, of scales, of issues, and of stakeholders Scrase...

Ngày tải lên: 06/11/2012, 10:35

... walls of office buildings and the floors of residential units for temperature control, while only distributing the volume of air required for ventilation This decoupled system allows for 100% of ... (0.3048 m) off of the rear wall as shown in Figure 4, which gives an area of 2.25 ft2 (0.2090 m2) for each vent Case has a volume of 1,368 ft3 (38.74 m3) By meeting the guidelines of four air ... The outlet vent area of Case is double the size of the outlet vent area of Case Each outlet vent is of the size, 9" × 36" (0.2286 m × 0.9144 m) spaced 12", giving an area of 4.5 ft2 (0.418 m2))...

Ngày tải lên: 05/09/2013, 15:28

... (NSTDA); iii Office of the Basic Education Commission (OBEC); iv Office of the Non-formal and Informal Education (ONIE); v Vocational Education Commission (VEC); NSTDA (2008) Memorandum of understanding ... rate the quality of the training on a scale of 1-10 ranging from poor to excellent and the degree of adequacy of the knowledge acquired from the training sessions on a scale of 1-10 ranging from ... description The study analyses a project engaged in the diffusion of PV systems to rural areas The PV systems in focus are stand-alone or off-grid installations designed to be used in remote areas where...

Ngày tải lên: 05/09/2013, 16:10

... to the high price of PV modules, even if it has declined steadily since 1985 [6] Due to the minimal maintenance of PV systems and the absence of real benefits of economies of scale during construction, ... two principal PV systems described in the following sections are the grid connected (or on-grid) systems and the stand alone systems (or off-grid) systems 3.5.1 Grid connected systems In grid ... the basis of the power delivered under Standard Testing Conditions (STC) of 1kW/m² of sunlight and a PV cell temperature of 25°C Their output measured under STC is expressed in terms of “peak...

Ngày tải lên: 05/09/2013, 16:10

... invented the method of automatic control of the weaving of fabrics with a loom machine by using punch cards and this method was the beginning of the concept of NC The concept of NC was actually ... role of controlling the machine’s behavior with the exception of servo control Figure 1.13 shows the conceptual architecture of CNC machine tools from the hardware and software points of view Software ... developing Soft-NC is the scheduling that satisfies the execution of the software modules in real time Recently, NC systems have advanced from being closed systems to being open and distributed systems...

Ngày tải lên: 08/09/2013, 20:50

... tensile test specimens and mm in diameter and a lengthen of 50 mm for the samples used for compressive tests The compression and the tensile tests of bulk metallic glasses were conducted at different ... bulk metallic glasses were prepared by arc-melting elemental Zr, Cu, Al, Ni and Ti with a purity of 99.9% or better in a Ti-gettered argon atmosphere.[12,13,28] For reaching homogeneity, the master ... strain rates with an Instron 4466 testing machine at room temperature Tensile and fatigue tests of the pure Cu and Cu-Al single crystals, Cu bicrystals and ultrafine-grained Al-Cu polycrystals...

Ngày tải lên: 26/10/2013, 17:15