... – Advantages • Can carry up to three times the amount of data as TDMA • Transmissions are much harder to eavesdrop on • A would-be eavesdropper must also know the exact chip in which the transmission ... the signal • Attenuation – A loss of signal strength • Multipath distortion – As a radio signal is transmitted, the electromagnetic waves spread out 24 Signal Strength (continued) 25 Radio Frequency ... • List the components of a radio system • Describe how different factors affect the design of a radio system • Explain the radio frequency spectrum Components of a Radio System • Components include:...
Ngày tải lên: 13/09/2012, 10:52
... 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 ... Nelder and Mead A global analysis of Tables and reveals an important outcome: the method of Powell systematically leads to the smallest values of the objective function and of the number of simulator ... mathematical optimization Table Results obtained with the genetic algorithm Decision variable Case Case EIS EIS Alternative Alternative Mathematical EIS optimization Alternative EIS Alternative Mathematical...
Ngày tải lên: 05/09/2013, 16:30
Reliability analysis of a power system based on the multi state system theory
... the system is above 22.8 Ah, the system is reliable, though the capacity of a battery is lower than 5700 mAh Suppose the capacity of the first branch is 5600 mAh and the capacity of other branches ... branches are all above 5800 mAh, the system is reliable because the required capacity is reached But when we analyze the system reliability using the traditional system reliability theory, the system ... Gendreau, “Tabu search for the redundancy allocation problem of homogenous series-parallel multistate systems,” Reliability Engineering and System Safety, 2008, Vol.93, No.8, pp.1257–1272 M Agarwal,...
Ngày tải lên: 03/01/2014, 19:38
Tài liệu Architecture of a Database System ppt
... life of a query in a database system This also serves as an overview of the remaining sections of the paper Consider a simple but typical database interaction at an airport, in which a gate agent ... data from the database These operators make calls to fetch data from the DBMS’ Transactional Storage Manager (Figure 1.1, bottom), which manages all data access (read) and manipulation (create, ... copy Redundancy can be achieved in a number of ways: (a) replication at the data storage level (Storage-Area Networks), (b) data replication at the database storage engine level (as discussed...
Ngày tải lên: 20/02/2014, 05:21
Báo cáo " Development of a spectrometry system Using lock-in amplification technique " doc
... example, Raman Spectra of Vietnam petrol extracts excited by a 30mW He-Ne laser instead of Ion Argon laser The Raman excitation by He-Ne laser showed many advantages in comparison with Argon laser ... and may contain any number of embedded space characters A command to the SR830 consists of a four characters command mnemonic, arguments if necessary, and a command terminator The SR830 has a 256 ... and resolution and many advantages for studying Raman and Fluorescence spectra We succeeded in obtaining Raman spectra of petrol extracts by 30mW He-Ne laser excitation The high sensitivity of...
Ngày tải lên: 05/03/2014, 14:20
Báo cáo khoa học: In vitro selection and characterization of a stable subdomain of phosphoribosylanthranilate isomerase potx
... (FLAG-positive) TAC Y GGG G NNS X TAC Y AAG K CTG L NNS X AAG K GAT D GAT D GAT D GAT D GAC D GAC D GAC D GAC D GAT D GCG A NNS X GAT D GAT D GAT D GAT D CGA R AAG K AAG K AAG K TAA * same experimental protocol ... aspartates and two lysines) Although the (ba)8-barrel of FLAG-PRAI remained unperturbed, trial enrichments and SPR analysis demonstrated functional presentation of an epitope with nanomolar affinity ... Blackburn display may be a unique and advantageous feature of this display format structural studies will be required to reveal the true nature of this PRAI subdomain A stable subdomain of PRAI...
Ngày tải lên: 30/03/2014, 20:20
Báo cáo khoa học: Insights into the design of a hybrid system between Anabaena ferredoxin-NADP+ reductase and bovine adrenodoxin pot
... Time-sequential spectra recorded after addition of CYP1 1A1 to an anaerobic CO-saturated sample containing the reaction mixture FNRrd/Adxox gave rise to a peak at 450 nm together with absorbance decreases ... providing a large amount of information about its interaction and ET properties to Fd, Fld and NADP+ [8–11] Three-dimensional structures of Anabaena wild-type (WT) FNR, several of its mutants and of ... ´ Mayoral, T., Medina, M., Sanz-Aparicio, J., Gomez-Moreno, C & Hermoso, J .A (2000) Structural basis of the catalytic role of Glu301 in Anabaena ferredoxin-NADP+ reductase revealed by X-ray crystallography...
Ngày tải lên: 31/03/2014, 07:20
báo cáo hóa học:" From HIV diagnosis to treatment: evaluation of a referral system to promote and monitor access to antiretroviral therapy in rural Tanzania" doc
... J, Zaba B, Changalucha J, Kalluvya S, Urassa M: Barriers to accessing antiretroviral therapy in Kisesa, Tanzania: a qualitative study of early rural referrals to the national program AIDS Patient ... cohort in Tanzania XV International Conference on AIDS and STIs in Africa (ICASA) Dakar 2008 Roura M, Wringe A, Busza J, Nhandi B, Mbata D, Zaba B, Urassa M: "Just like fever": a qualitative study ... clinical trial of a vaginal microbicide trial in Mwanza, Tanzania: Understanding the barriers to attending CTC services 15th International Conference on AIDS and STIs in Africa (ICASA), Dakar 2008...
Ngày tải lên: 20/06/2014, 08:20
Báo cáo toán học: " Existence of solutions of a new system of generalized variational inequalities in Banach spaces" ppt
... Existence of solutions of a new system of generalized variational inequalities in Banach spaces Somyot Plubtieng∗ and Tipphawan Thammathiwat Department of Mathematics, Faculty of Science, Naresuan University, ... Singh, SP: An altenate version of a variational inequality Indian J Math 41, 25–31 (1999) 12 Kassay, G, Kolumb´n, J: System of multi-valued variational variational inequalities Publ a Math Debrecen ... YJ, Fang, YP, Huang, NJ, Hwang, HJ: Algorithms for systems of nonlinear variational inequalities J Korean Math Soc 41, 489–499 (2004) Cioranescu, I: Geometry of Banach Spaces Duality Mappings and...
Ngày tải lên: 20/06/2014, 21:20
Báo cáo hóa học: " Research Article Dynamics of a Rational System of Difference Equations in the Plane" pot
... the associated matrix A has an eigenvalue λ such that −λ is also an eigenvalue Since A is a × square matrix, this Advances in Difference Equations obviously implies that the trace of A is also an ... Let ρ A be the spectral radius of the matrix A given in 2.2 , and let λ be an eigenvalue of A If |λ| < ρ A , then the associated equilibrium is unstable If |λ| ρ A and all the eigenvalues of A whose ... mapping a1 /ak , a2 /ak , , ak /ak for a1 , a2 , , ak ∈ Rk with given by q a1 , a2 , , ak k k a1 , a2 , , ak , , it is shown in such ak / and : R → R is given by a1 , a2 , , ak...
Ngày tải lên: 21/06/2014, 05:20
Báo cáo hóa học: "Research Article The Solvability of a New System of Nonlinear Variational-Like Inclusions" ppt
... mappings, Lan 13 established an existence result for nonlinear random multivalued variational inclusion systems involving A, η -accretive mappings in Banach spaces Lan and Verma 15 studied a class of ... H.-Y Lan and R U Verma, “Iterative algorithms for nonlinear fuzzy variational inclusion systems with A, η -accretive mappings in Banach spaces,” Advances in Nonlinear Variational Inequalities, ... Hilbert spaces Lan investigated the existence of solutions for a class of A, η -accretive variational inclusion problems with nonaccretive setvalued mappings Lan 11 analyzed and established an existence...
Ngày tải lên: 22/06/2014, 11:20
Báo cáo hóa học: "ASYMPTOTIC BEHAVIOR OF A COMPETITIVE SYSTEM OF LINEAR FRACTIONAL DIFFERENCE EQUATIONS" docx
... ∞ A fixed point E is a global attractor on a set if E is an attractor and is a subset of the basin of attraction of E If F is differentiable at a fixed point E, and if the Jacobian JF (E) has ... Nurkanovi´ , Asymptotic behavior of a two dimensional linear fractional c c system of difference equations, Radovi Matematiˇ ki 11 (2002), no 1, 59–78 c , Asymptotic behavior of a system of linear ... that when A < 1, B < 1, the stable manifold of the positive equilibrium (1 − B,1 − A) of system (1.2) separates the positive quadrant into basins of attraction of two types of asymptotic behavior...
Ngày tải lên: 22/06/2014, 22:20
Báo cáo khoa học: "Intracranial pressure monitoring in intensive care: clinical advantages of a computerized system over manual recording" potx
... purpose of the data collection, each data system (manual or digital) can better fit the aim When a detailed analysis of ICP of individual cases is desirable, a digital system with proper filtering appears ... percentage of time with an ICP of greater than 20 mm Hg was also calculated by filtering the digital data using proprietary software (Super ICP analyzer, author AC) The two methods were evaluated ... interpretation of data and helped to draft the manuscript LG and SL made substantial contributions to the acquisition, analysis, and interpretation of data AC participated in the design of the study and...
Ngày tải lên: 13/08/2014, 03:20
THE DIRECT REPROGRAMMING OF SOMATIC CELLS: ESTABLISHMENT OF A NOVEL SYSTEM FOR PHOTORECEPTOR DERIVATION
... TGA ACC CAG TGA TCT GTA AGA ACC TGC TTC C GCG GAA GAA AAA GGG ATT CTT GCC AGA GAC C CTC AGA AAG TGA TGA CAA GCG AGC CCT CCT AAA TCT GGG CCA AA GCC CAG AGC TAT CTA GTC CTA AAC CT AGC AAC CGC AAT ... ATG AGC TCA GAA AGT GAT GAC AAG C REVERSE ATA TAT ACC GGT GCC ACC ATG ACC AAA TCA TAC AGC GAG A REVERSE ATA TAT CTC GAG GCC ACC CTA ATC GTG AAA GAT GGC ATT AAG CT FORWARD REVERSE NEUROD1 ATA TAT ... ATG AAG AGC CCC ACG AAA GCT ACC CCA ACC ACT TAC AGG GAC A GGG GAG AAC ATG GTT ATT TCT AAG CCC C AGA CGA AGC AGC ACT TCT CCT T AGG TGG TCC GGA GTG TAT TTG GTC TGA GCA CCC CCT GAT CCT GGA ACT ACT...
Ngày tải lên: 24/08/2014, 12:37
Proof of the orthogonal measurement conjecture for two states of a qubit
... the proof If there exists a basis such that each state of a collection of states has a real matrix representation in this basis, we say that the states are real If Alices states are real, any complex ... on the case of two states of a qubit Lemma 10 Let ρ1 and ρ2 be two states of a qubit It is always possible to find a basis such that both states have a real matrix representation The accessible ... for random, correlated data for Alice and Bob The idea is a small variation to the idea laid out before Alice and Bob agree on a number of different encoding schemes beforehand Each typical sequence...
Ngày tải lên: 14/09/2015, 08:37
Design and control of a teleoperation system for humanoid walking
... equations as the human arm One advantage of this approach is that it is relatively easy to design an exoskeleton that can track the entire workspace of the human arm Apart from the difficulty of wearing ... user a full information for the hardware and software interface The humanoid robot weighs 6kg and stands 48cm tall It has a total of 20 Degree of Freedom (DOF) - DOF each leg and DOF each arm ... fire disaster area, or radiation in the nuclear plant, etc Taking advantage of the advancement in bipedal walking control, several humanoid robots, namely the Honda Asimo (Hirai, 1998) and Sony Qrio...
Ngày tải lên: 04/10/2015, 10:25
OPTIMAL placement of FACTS devices by genetic algorithm for the increased load ability of a power system
... 200% of loading are shown in Table Phase angles are given in radian The locations where different FACTS devices are placed is shown in Table A comparative study of the operating cost of the system ... BITS,Pilani for nearly one year He had also worked in reputed Cable Industry as Assistant Engineer (Test) for two and half years He has published number of research paper in the area of Power System ... Fig Variation of Total Cost with Generation for 130% Reactive loading Fig Variation of Total Cost with Generation for 200 % Reactive loading VI CONCLUSION In this approach, GA based optimal placement...
Ngày tải lên: 26/03/2016, 02:38
Slide matlab based transient stability analysis of a power system
... Pa (d δ) =A2 (negative area); EQUAL AREA CRITERION (cont.) A 1= Area of acceleration A2 = Area of deceleration If the area of acceleration is larger than the area of deceleration, i.e., A > A2 ... of a generator disturbing the energy balance and requiring an increase in the angular separation as other generators adjust to make up the lost energy • The loss of a large block of load in an ... overview Mathematical derivation for computational algorithm Case study Mat-lab code MATLAB Command Window CASE STUDY OF A THREE-MACHINE NINE-BUS SYSTEM SIMULINK References ABSTRACT Power -system stability...
Ngày tải lên: 03/12/2016, 14:16
Development of a recommender system for the selection of software architecture methods
... thousand • usage of several thousands of applications and a huge IT-landscape • high demand on software architecture knowledge & management Florian Mittrücker - Master Thesis Background and motivation ... Scholar Analyse steps Title & Abstract screening, Number of citations potentially relevant (Y/N) Available (Y/N) Analysis of article content, for- / backward search relevant (Y/N) Classification ... & 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
A Theory of Marketing Outline of a Social Systems Perspective
... economic-managerial (Aaker 1995; Aaker 1997; Leitch and Richardson 2003) aspects of brands The social fabric of “brand systems” that emerge through communication about and through brands were analyzed ... fields of a matrix spanned by the three conceptual distinctions positive/normative, profit/non-profit and micro/macro As a classificatory schema more than as a model, it allows for the domain of marketing ... brands instead of attacking particular distributions of capital or inhuman business practices In 1995, Brown summarized this state of affairs as a “mid-life crisis” and as an “air of doubt, directionlessness...
Ngày tải lên: 19/12/2016, 12:11