analysis constraint wrenches and optimal design of parallel manipulators

... to problems of flowsheet synthesis and to optimal design calculations DistillDesigner software allows refinement and confirmation of the algorithms of optimal design A sample of this software is ... optimization of the operating and design parameters of these columns and complexes (optimal design calculations) Methods of the general geometric theory of distillation, encoded in software, provide ... students and specialists in the design and operation of separation units in the chemical, pharmaceutical, food, wood, petrochemical, oil-refining, and natural gas industries, and for software designers...

Ngày tải lên: 01/04/2014, 11:27

... is the z-transform of si (k) and Sc,i (z) is due to the inputs of other bands and is termed as crosstalk in the ith band In general, the crosstalk in the ith band is composed of (M − 1) leakages ... noise of variance σr2 = 0.09 and = 0.9 (in this case, corresponding to the SNRc of 20 dB σr and 10 dB, resp.), we design the receivers by the optimal H2 design (Theorem 1) with an H∞ crosstalk constraint ... Associate Editor of the IEEE Transactions on Automatic Control, International Journal of Control, Automation and Systems, and Journal of Control Theory and Applications He is also a Member of the Editorial...

Ngày tải lên: 22/06/2014, 23:20

... restriction, the approach of randomized algorithms was proposed [50], which utilizes random search and uncertainty randomization for probabilistic robustness analysis and controller design In [51], the ... to the analysis and control of systems with random parametric uncertainties The subsequent contents of this thesis are organized as follows: Chapters and study the stability analysis of systems ... insight of the mutual influence of the system structure and the distribution of random parameters The main purpose of this chapter is to illustrate the use of gPC expansion theory in system analysis, ...

Ngày tải lên: 10/09/2015, 09:25

... model of a PHE, and the solution allows the calculation of the pressure and temperature change of streams entering the heat exchanger It is a problem of PHE rating (analysis) Optimization of PHE ... inaccuracy of only 2.5% The comprehensive description of existing PHE design procedures was presented by Shah and Focke [28] and Shah and Wanniarachchi [29] Their methods were described by Shah and ... Wang and Sunden [10] The most important and costly parts of plate -and- frame PHE are plates with gaskets The plates can be made of stainless steels, titanium and other even more expensive alloys and...

Ngày tải lên: 26/08/2016, 18:04

... this thesis addresses the analysis and design of MD RC shear walls located in ENA considering HMEs Objectives This research project is aimed to address analysis and design of slender MD RC shear ... values of damping models assigned for (a) modes and and (b) modes and 29 Figure 3-10: Dynamic base shear force vs damping values of damping models assigned for (a) modes and and (b) ... that material and type of construction, damping, ductility and/ or energy-absorptive capacity of the structure lw Length of the wall [M] Mass matrix Mb Flexural demand at base M*c Design moment...

Ngày tải lên: 17/11/2016, 14:44

... has been performed and discussed in detail The study quantifies and analyses the impact of operating, design, and material parameters on fuel cell performance and get an optimal design for PEM fuel ... International Journal of Energy and Environment (IJEE), Volume 2, Issue 6, 2011, pp.953-962 operating, design, and material parameters on fuel cell performance and get an optimal design for PEM fuel ... power and efficiency remains constant for both case of higher and lower values of thermal conductivity Operating at a narrow gas flow channel (case 12) will increase cell power and efficiency and...

Ngày tải lên: 05/09/2013, 14:58

... 1.5, while the minimum values of l,w,h and the limit values of l/w and h/w coincide with their corresponding values in the database of TAB III) The satisfaction of the constraints (21-22) assures ... yearly value of the energy stored during parking mode (λ=2) C B = λE p (12) Of course, many of these assumptions need to be refined and validated both by simulation and optimization and also by ... choice of components and materials and with careful design, the car body used for a HSV can reach a weight corresponding to 90% of the “average” value predicted by the model, for given power and...

Ngày tải lên: 30/03/2014, 10:20

... information towards understanding the biological relevance of YopD multimerization and even the general role of TTSS chaperone function, because functional homologues of YopD and LcrH exist in other ... 2,2,2-trifluoroethanol and 50 mM phosphate buffer at pH 6.3 (A) In the absence of purified LcrH, and (B) In the presence of purified LcrH to give a peptide/protein molar ratio of : The peptide residues Tyr291 and ... [35] and VMD [36] In order to verify that no residues were in disallowed regions, Ramachandran plot analysis was conducted using the program PROCHECK-NMR [37] RESULTS AND DISCUSSION CD and NMR...

Ngày tải lên: 31/03/2014, 21:21

... pen and paper tasks has been the use of a method called the "Wizard of Or" (henceforth W O Z ) which also avoids the problem of the fragility of current systems by simulating the operation of ... used to design such test suites strategies to communicate within the limitations of the system and they may therefore have been using a highly restricted form of English Indeed the existence of strategies ... processors and electronic mail A further of them had used omce applications such as spreadsheets or graphics packages Of the remainder, had some experience with using databases and one of these...

Ngày tải lên: 01/04/2014, 00:20

Ngày tải lên: 12/05/2014, 23:57

Ngày tải lên: 13/05/2014, 03:01

... investigation of materials This volume focuses on the effective use of advanced analysis and characterization methods for the design of materials The nanostructural and microstructural design for a set of ... Microscopy and Analysis, 168, pp 429-432, Institute of Physics, Bristol and Philadelphia Brummauer, S.M and Thomas, L.E (2001) Surface and Interface Analysis 31, 571 Albers, A,, Mullejans, H and Riihle, ... President of the International Federation of Societies of Electron Microscopy, four years as a Member of the Board of Governors of Acta Metallurgica, Inc., another four years as Chairman of the...

Ngày tải lên: 04/06/2014, 14:27

... access and radio relay systems, because the optimal design is dependent on the Tx-Rx distance and on the orientation of the two URAs Furthermore, we include an analysis of the influence of nonoptimal ... to the μ p s if the design deviates from the optimal as given in Section 4? In our analysis of nonoptimal design, we make use of {βi j } From above, we know that the optimal design, requiring the ... the optimal design for line -of- sight (LOS) channels with respect to mutual information for all possible combinations of URA and ULA at transmitter and receiver The optimal de- [1] G J Foschini and...

Ngày tải lên: 22/06/2014, 19:20

... tackled the problem of optimal design of linear arrays in a cellular systems under the assumption of Gaussian interference Two design problems are considered: maximization of the ergodic capacity ... solutions the numerical optimization of (8) and (9), and the impossibility to get analytical insight into the properties of the optimal solution When the number of antenna array is sufficiently small ... simulations) and minimization of the interference power at the output of the matched filter (by developing a closed form approximation of the performance criterion), for fixed and variable positions of user...

Ngày tải lên: 22/06/2014, 19:20

... interface and digital baseband together with a DSP core and be packed in a single chip The VLSI design of the physical layer, one of the most challenging parts, will act as an engine instead of a ... architecture, and map naturally to real hardware and software components and algorithms The designer should also be able to model other elements that affect baseband performance, channel effects, and timing ... ANSI-standard C/C++ and (b) a set of directives which define the hardware architecture The clear separation of function and architecture allows the input source to remain independent of interface and...

Ngày tải lên: 22/06/2014, 22:20

... {(Xi , mi )}L=1 , find an optimal i value of the weight vector w and threshold t such that they satisfy the constraints (29) ξ1i , ξ2i ≥ Now, we formulate the optimal design of WOS filters as the following ... Xi+N ) and FW (·) denotes the filtering operation of the WOS filter associated with the corresponding vector W consisting of weights and threshold: Yi = FW (Xi ) = the tth largest value of the ... the kth component of X m , i x2k is the kth component of X m+1 i (26) The corresponding outputs y1i , y2i of (26) are y1i = U(W T X m ) = and y2i = U(W T X m+1 ) = When y1i and i i y2i are considered,...

Ngày tải lên: 22/06/2014, 23:20

... Echinoidea In Reproduction and Development of Marine Invertebrates of the Northern Pacific Coast: Data and Methods for the Study of Eggs, Embryos, and Larvae Seattle, WA: University of Washington Press; ... SRP conceived of the study, MHP developed technical aspects of the method, performed experiments, and performed data analysis with assistance from SRP TAO designed tile sequences and contributed ... greater understanding of the role of environmental variation in shaping genetic diversity patterns and help reveal the genetic basis of adaptive evolution in natural populations Materials and methods...

Ngày tải lên: 09/08/2014, 20:21

... 1971; Mayr et al 1984), and Russia (Tikhonov and Troshina, 1975; Troshina and Tikhonov, 1980) MATERIAL AND METHODS The study comprised 12 specimens (4 d Q ) of a Sus scrofa scrofa population, ’, all ... acrocentrics (15 and 17) characteristic of 2n 37, but contained a pair of long submetacentric = = (15/17) chromosomes CBG bands CBG-band analysis (Summer, 1972), revealed types of centromeric heterochromatin ... the heterochromatin of the autosomal pairs of similar length and morphology (pairs and 9) NOR bands The nucleolus organizer regions, detected by means of silver staining (Bloom and Goodpasture,...

Ngày tải lên: 14/08/2014, 20:20

... the first four sets of constraints of our optimization model (4.2.15) are linear in the eigenvalues and so require no extra linearization themselves, and the fifth and sixth constraints are only ... multiple band gaps optimization problems, and is explained through an example Assume the band gaps to be optimized is the th band gap (between the th and ( + 1)th eigenvalues) and the mth band gap ... outer iterations; each iteration consists of one pass of Steps 2–6 of the main algorithm in section 4.2.5 Due to the presence of local maxima and our use of randomly chosen starting point configurations,...

Ngày tải lên: 10/09/2015, 15:52

... presented several optimal designs as a proof of principle, and verified the results by the intensity plots of the localized and attenuated fields corresponding to the guided and unguided modes ... detail particular cases of the optimal design of photonic crystals, the following directions are of great interest for the further development of this field Band gap optimization of three-dimensional ... the photonic and phononic material properties[40] Based on the successful story of our algorithm, the optimal design of this type of crystal is certainly a new and promising area of research Field...

Ngày tải lên: 10/09/2015, 15:53