reversible work of a closed system
List the components of a radio system
Ngày tải lên :
13/09/2012, 10:52
... – 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:...
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Exergoeconomic optimization and improvement of a cogeneration system modeled in a process simulator using direct search and evolutionary methods
Ngày tải lên :
05/09/2013, 16:30
... 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...
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Reliability analysis of a power system based on the multi state system theory
Ngày tải lên :
03/01/2014, 19:38
... 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 ... framework to practical predictive maintenance modeling for multi-state systems’’ by Tan C.M and Raghavan N [Reliab Eng Syst Saf 2008; 93(8): 1138–50],” Reliability Engineering and System Safety,...
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Tài liệu Architecture of a Database System ppt
Ngày tải lên :
20/02/2014, 05:21
... 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...
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Báo cáo " Development of a spectrometry system Using lock-in amplification technique " doc
Ngày tải lên :
05/03/2014, 14:20
... 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...
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Báo cáo khoa học: Insights into the design of a hybrid system between Anabaena ferredoxin-NADP+ reductase and bovine adrenodoxin pot
Ngày tải lên :
31/03/2014, 07:20
... 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 ... measuring compartment and lM CYP1 1A1 was placed in the second compartment After the samples were made anaerobic, an excess of NADPH was added to the FNR/Adx mixture to allow Adx reduction via ... 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...
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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
Ngày tải lên :
20/06/2014, 08:20
... 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...
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Báo cáo toán học: " Existence of solutions of a new system of generalized variational inequalities in Banach spaces" ppt
Ngày tải lên :
20/06/2014, 21:20
... 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, ... Z: Factorization of Minty and Stampacchia variational a a inequality system European J Oper Res 143, 377–389 (2002) 14 Kim, JK, Kim, DS: A new system of generalized nonlinear mixed variational ... 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 54, 267–279 (1999) 13 Kassay,...
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Báo cáo hóa học: " Research Article Dynamics of a Rational System of Difference Equations in the Plane" pot
Ngày tải lên :
21/06/2014, 05:20
... has that a0 n characteristic polynomial of A Further, by elementary techniques of linear algebra one can also compute them in terms of the eigenvalues of A an approach using the solutions to an ... 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 ... Consider an eigenvalue λ of A, and let λ2 , λ3 be the other nonnecessarily different eigenvalues of A Let us show that the eigenvalues of the Jacobian matrix at a fixed point associated to λ are just...
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Báo cáo hóa học: "Research Article The Solvability of a New System of Nonlinear Variational-Like Inclusions" ppt
Ngày tải lên :
22/06/2014, 11:20
... 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...
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Báo cáo hóa học: "ASYMPTOTIC BEHAVIOR OF A COMPETITIVE SYSTEM OF LINEAR FRACTIONAL DIFFERENCE EQUATIONS" docx
Ngày tải lên :
22/06/2014, 22:20
... 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 one eigenvalue with modulus less than one and a second ... 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 ... B,1 − A) of system (1.2) separates the positive quadrant into basins of attraction of two types of asymptotic behavior From a biological perspective, W s ((1 − B,1 − A) ) is a threshold manifold...
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Báo cáo khoa học: "Intracranial pressure monitoring in intensive care: clinical advantages of a computerized system over manual recording" potx
Ngày tải lên :
13/08/2014, 03:20
... 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 ... 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 ... quartile (black bars) consisted of patients with a percentage of time of digital HICP of more than 75%, the third quartile (gray bars) consisted of patients with a percentage of time of digital...
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THE DIRECT REPROGRAMMING OF SOMATIC CELLS: ESTABLISHMENT OF A NOVEL SYSTEM FOR PHOTORECEPTOR DERIVATION
Ngày tải lên :
24/08/2014, 12:37
... 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...
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Design and control of a teleoperation system for humanoid walking
Ngày tải lên :
04/10/2015, 10:25
... 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...
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OPTIMAL placement of FACTS devices by genetic algorithm for the increased load ability of a power system
Ngày tải lên :
26/03/2016, 02:38
... 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...
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The work of a farmer
Ngày tải lên :
27/08/2016, 07:45
... Tuy nhiên, người nghĩ tầm quan trọng công việc nông dân Chúng nghĩ người nông dân thực phẩm xung quanh Sau buộc phải trồng lương thực Vì vậy, làm công việc khác Ngay bác sĩ phải trồng lương thực ... việc khác Ngay bác sĩ phải trồng lương thực người nông dân không trồng lương thực cho họ Tất tầm quan trọng công việc người nông dân ...
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The Design and Implementation of a Log-Structured File System
Ngày tải lên :
12/09/2012, 15:05
... separate data area of these database systems means that they not need the segment cleaning mechanisms of the Sprite LFS to reclaim log space The space occupied by the log in a database system can ... the most up to date ‘‘truth’’ about the state of the data on disk The main difference is that database systems not use the log as the final repository for data: a separate data area is reserved ... increasing the amount of data lost during a crash For this paper we will assume that crashes are infrequent and that it is acceptable to lose a few seconds or minutes of work in each crash; for applications...
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The Duality of Memory and Communication in the Implementation of a Multiprocessor Operating System
Ngày tải lên :
12/09/2012, 15:05
... nature to a data manager which fails to free data, but is easier to detect and prevent • Data manager changes data A malicious data manager may change the value of its data on each cache refresh ... access to cached data than the data manager has permitted (e.g., a write fault on a page made read-only by a pager_data_lock call), the kernel issues a pager_data_unlock call The data manager is ... the cached data The kernel uses the pager_data_write call in response, just as when it initiates a cache replacement A data manager may restrict the use of cached data by issuing a pager_data_lock...
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Simulation of a Multiple Input Multiple Output (MIMO) wireless system
Ngày tải lên :
20/11/2012, 11:36
... the appropriate electric field value The ray list contains all of the data about rays propagating from a base station to a field point Each field point has a ray list associated with it A ray ... Fitzpatrick As can be seen, it is passed a particular base station, an image and its order, and also the field point As seen earlier a ray is made up of nodes, two of these nodes are always the base ... Simulation of a MIMO wireless system – John Fitzpatrick 2.4 Linear arrays Beamforming can be accomplished by using many different types of arrays, such as linear, circular and planar arrays I...
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PERFORMANCE OF A COMBINED CONSTRUCTED WETLAND SYSTEM FOR TREATING VILLAGE SEWAGE IN LAKE DIANCHI VALLEY
Ngày tải lên :
05/09/2013, 08:40
... the pollutants concentration was low in the rain season (from May to October) The data from the local weather station showed that the average annual rainfall and evaporation was 802mm and 2093mm, ... order to make full use of the land advantage to strengthen ecological and scenical effect of ecological system The area was 2000 m2 and hydraulic loading rate was 4cm/d in the free-surface constructed ... which behaved as that the flux was small and the pollutants concentration was high because of high evaporation (from November to the April of next year) in dry season, and the flux was big and the...
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