how much are there

... statistics are good But, that is not the whole truth, there are bad statistics That is why there are such interesting titles as these: Huff, D (1954) How to Lie with Statistics; Runyon, R.P (1981) How ... liars use statistics.” Obviously, there are good statistics and there are bad statistics, and we need to be able to differentiate between them Good statistics are the kind of numbers which simplifies ... otherwise, he lied with an educational statistics Chapter On Percentage: How Much Are There? The principal Mrs Fang asked, How good is the chance that our Chinese orchestra will get a gold medal...

Ngày tải lên: 13/08/2016, 09:04

... communications On the other hand, many preallocated frequency bands are ironically under-utilized and thus the resources there are simply wasted This situation leads to the introduction of cognitive ... dilemma Under the cognitive radio model, there are mainly two tiers of users Primary users (PU), who typically require stable frequency spectra for communications, are licensed users and have the rights ... These limiting laws are valid for large numbers of sensors and samples and are not able to characterize detection performance when the number of sensors and the sample size are small On the other...

Ngày tải lên: 28/06/2014, 17:20

... need • It’s not broken, so there would be no financial gain from changing it to a more structured environment These are valid points However, more and more, companies are beginning to find value ... installation It’s not possible to run SharePoint Services on an XP box, as shown in Figure 3-2 Figure 3-2 SharePoint Services is a no-go on an XP box Installing BizTalk Software Prerequisites A common misconception ... via the Internet The method and the format are really inconsequential to BizTalk All BizTalk really cares about is the data within those files But there is a caveat to consuming that vendor’s...

Ngày tải lên: 21/08/2012, 09:28

... occurs, there are inputs and outputs The inputs are the result of the environment's influence on the system, and the outputs are the influence of the system on the environment Input and output are ... factors determined by the model and by the local experts are compared If there are differences between the two, the causes of the differences are analyzed Convincing evidence (from measured data ... basins meanwhile rain-fed rice fields are located in the higher area In the hilly and mountainous area, horticulture such as maize, potatoes and cassava are cultivated Forest gardens that house...

Ngày tải lên: 06/11/2012, 10:35

... Table show that, first of all, the results are overall more significant with Barro-Lee’s database rather than with Cohen-Soto’s one, but both are significant when taking all the countries , showing ... schooling to growth seem to explain much less than a third of the correlation between economic growth and schooling attainment On the other side, the inverse channel shows much better results, and the ... are: • The returns to schooling are much below those reported by the previous literature • The log wage regression is found to be convex in schooling Local returns are very low until grade 11 and...

Ngày tải lên: 24/08/2013, 18:40

... Co-operatives, Bangladesh (Rahman et al., 1996) However, the main purpose of these biogas plant programs is to get the renewable energy, and there are few cases on small-scale biogas plant whose ... activities had started there The 2600 squatter families were resettled in 0.36 km2 area on the side of an embankment The high earthen bank was constructed to protect the area from a surrounding ... would own the premises The plots are arranged in five blocks as shown in Figure (right) Each block has 22 lanes, except for Block D, which has 24 lanes Originally, there were about 12 houses on...

Ngày tải lên: 05/09/2013, 09:08

... 3's inlet vents are designed to have the same total inlet vent area as Case and There are six inlet vents on the floor Hence, the Case inlet vents are 6" × 9", which gives an area of 2.25 ft2 ... vents (Figure 7) Since there is no change in the total inlet vent area compared to Case 1, Case meets the ASHRAE guidelines of air movement in the room The six inlet vents are placed on the floor ... inlet and outlet dimensions of the vents are 9" × 36" (0.2286 m × 0.9144 m) spaced 12" (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...

Ngày tải lên: 05/09/2013, 15:28

... Thailand is not an exception There are several governmental agencies installing stand-alone PV systems where there is no electricity available However, these projects are not always managed with ... 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 there is no national grid available During ... mountainous area in Thailand The dissemination of the PV technology is done through learning centers located in each village The learning centers are used as local schools Social activities are also gathered...

Ngày tải lên: 05/09/2013, 16:10

... These groups of cells are packaged into standard modules that protect the cells from the environment PV modules are extremely reliable since they are solid state and there are no moving parts cell ... the area of telecommunications Modern telecommunications show an increased need for decentralization and low power consumption [16] PV modules are used to power emergency telephones in remote areas ... systems is carried out In particular the PV key benefits are presented and the various PV solar cell technologies are described and compared Emphasis has been given to the current and future PV...

Ngày tải lên: 05/09/2013, 16:10

... control Figure 1.13 shows the conceptual architecture of CNC machine tools from the hardware and software points of view Software MMI NCK Machine parameter Diagnosis Hardware Part Programming ... 8.1.1 Area for Status Display 8.1.2 Area for Data Input 8.1.3 Area for MPG Handling 8.1.4 Area for ... when a user operates machine tools Therefore there are many kinds of user interface based on the design concepts of the CNC maker Functions of the user interface are generally classified into five...

Ngày tải lên: 08/09/2013, 20:50

... note that a parent component can contain only one child component per named facet, but the same parent component can contain many indexed child components Code Sample 1-13 shows how to add a ... performed, and you will now look at how JSF handles postback Some parts are similar to what we have already been covering in the initial request, but there are obviously differences and additions, ... not aware of what action has been taken; it is aware only of the outcome of a particular action and will use that outcome to decide where to navigate In JSF it is the component that is aware of...

Ngày tải lên: 19/10/2013, 00:20

... languages, and discusses how XML is related to database systems It presents XML concepts and languages, and compares the XML model to traditional database models We also show how data can be converted ... Warehouses 1070 Building a Data Warehouse 1075 Typical Functionality of a Data Warehouse 1078 Data Warehouse versus Views 1079 Difficulties of Implementing Data Warehouses 1080 Contents 29.8 Summary ... continually updated as new books and other items are added to the inventory and stock quantities are updated as purchases are transacted About 100 people are responsible for keeping the Amazon database...

Ngày tải lên: 07/12/2013, 11:33

... */ printf( There is one parent\n”); break; case 2: /* You need two to start something */ printf( There are two parents\n”); break; default: /* critical mass */ printf( There are two parents and ... ‘/’ There are a number of subdirectories listed below that are used for storing system files, user files, temporary files and configuration files A sample of the standard directories are shown ... keyboard commands If other disks are used, such as a CDROM, or floppy disk, they are mounted under the root directory (i.e., there are no ‘C’, ‘A’ or other drives, they are all under ‘/’.) (Note: the...

Ngày tải lên: 22/12/2013, 20:17

... elements of the defined architecture are refined to create hardware virtual prototypes Hardware virtual prototypes are defined as software simulatable models of hardware components, boards, or systems ... translation of software architecture specifications to design implementations of application and control software for a signal processing system Hardware/software architectures are presented to the ... software prototyping Various parametric studies based on historical project data show that software is difficult to design and test if “slack” margins for hardware CPU and memory resources are...

Ngày tải lên: 25/12/2013, 06:16

... Computes the square root of x Rounds x to the nearest integer Rounds (or truncates) x to the nearest integer toward Rounds x to the nearest integer toward – ∞ Rounds x to the nearest integer toward ... the language C, but is generally much easier to use We will also see how to program logic constructs and loops in MATLAB, how to use subprograms and functions, how to use comments (%) for explaining ... following conditions are satisfied: (1) all the coefficients of the characteristic equation are positive, and (2) all the elements of the first column of the Routh-Hurwitz table are positive Self-Loop:...

Ngày tải lên: 01/01/2014, 18:43

... reliability parameters for each generator and condenser are shown in Table A1 The reliability parameters of the transmission lines are shown in Table A2 Annual constant load is used in analysis ... The proposed annual load point and system EVNSQ and EVarS are also calculated and the results are shown in Table The EVarS results show that the voltage violations caused by Var shortage can ... and ground There are static and dynamic Var compensators in power systems A basic dynamic Var generation arrangement using a fixed capacitor with a thyristor-controlled inductor is shown in Fig.3...

Ngày tải lên: 03/01/2014, 19:39

... take into account the way the matrices are built for mechanical problems In fact, the terms of the matrices are not independent from each other, since they are calculated from the same parameters, ... problems The results found with the modified Rump’s algorithm are often much sharper than the ones found with the classical formulation To show the efficiency of the method for finding the solution of ... can then compare the results of both methods for a particular value of the frequency For ω = 9.5 rad/s, the results are given in table The Monte Carlo simulation gives results that are included...

Ngày tải lên: 12/01/2014, 21:45

... development of mathematical models • Models of interest may be ODEs/DAEs • Minimization of a weighted squared error r φ = θ,z µ s.t (zµ,m − zµ,m )2 ¯ m∈M µ=1 ˙ z = f (z, θ, t), z(t0 ) = z θ∈Θ z µ = z(tµ ... solutions – a need for global optimization Deterministic Global Optimization with Dynamic Systems • Much recent interest, e.g – Esposito and Floudas (2000) – Chachuat and Latifi (2003) – Papamichail ... IVP for the parametric ODEs ˙ y = f (y, θ), y(t0 ) = y , θ ∈ Θ • Validated methods: – Guarantee there exists a unique solution y in the interval [t0 , tf ], for each θ∈Θ – Compute the interval...

Ngày tải lên: 12/01/2014, 22:03

... development of mathematical models • Models of interest may be ODEs/DAEs • Minimization of a weighted squared error r φ = θ,z µ s.t (zµ,m − zµ,m )2 ¯ m∈M µ=1 ˙ z = f (z, θ, t), z(t0 ) = z θ∈Θ z µ = z(tµ ... solutions – a need for global optimization Deterministic Global Optimization with Dynamic Systems • Much recent interest, e.g – Esposito and Floudas (2000) – Chachuat and Latifi (2003) – Papamichail ... IVP for the parametric ODEs ˙ y = f (y, θ), y(t0 ) = y , θ ∈ Θ • Validated methods: – Guarantee there exists a unique solution y in the interval [t0 , tf ], for each θ∈Θ – Compute the interval...

Ngày tải lên: 12/01/2014, 22:16