improve the bilingual dictionary

... (Popper 1959) The degree of ‘erraboration is an indicat forthe verisimltude The beter the corroboration ofa theory, the higher the veriilitade, or the “truth content” ofthe theory ‘The assumption ... consider the preface to be the most interesting part of ny thesis, Between the lina of the preface you often dicover the human side ofthe study How di the research process work out) Were there any ... introduces the research question and presents a broad outline of the approach to finding the answer to this question It contains the structure of the thesis and defines the limits of the study

Ngày tải lên: 08/03/2014, 15:20

... slowly into the milk Take the lactometer readingjust above the surface of the milk If the temperature of the milk is different from the lactometercalibration temperature (20ºC), then use this ... (sample) of the milk is used.For the result of the test to give a true picture of the state of themilk, it is important to mix milk before obtaining the sample ortesting You can ensure that the milk ... SPOILAGEThere are many constraints or problems that milk traders face inmarketing their milk Many of these constraints or problems causemilk spoilage or are the result of it These may include the

Ngày tải lên: 18/03/2014, 00:20

... another, thus destabiliz-ing the protein For the native protein, the presence of the N-terminal domain and the oligomeric structure of the protein may be necessary to maintain the structure of the ... ZnCl2 inhibits the activity of AMPP [1] Here, the presence of ZnCl2 in the dialysis buffer led to the precipitation of each of the three proteins Neither the intact protein nor the Table 1 Sequence ... the solu-bility of the domain In the case of the AMPP protein, the boundary of the domain would have been better determined from an inspection of the structure rather than by the experimental methods

Ngày tải lên: 23/03/2014, 07:20

... choose the modules containing the content that most interests them At the same time, schools and individual instructors can assess the resources available to them and then determine which modules they ... own definition, the common themes observed in existing definitions of wellness (Appendix 1) should be considered These themes, by virtue of the frequency with which they appear in the definitions ... obtain resources.91 The respondents in this study reported that they used the information they gleaned to identify lesson and project ideas.91 The teachers reported that they shared the information

Ngày tải lên: 28/03/2014, 20:20

... those that do not contradict a hypothesis comprise the support for the hypothesis Those that contradict the hypothesis are the doubts Arguments for which the hypothesis is possible are called plausibilities ... only improve the AIC if the fit (measured by the log-likelihood of the data) improves more than the cost for the extra parameters.A set of competing models can be compared by computing their AIC ... given a hypothesis, it will attempt to find arguments or explanations for the hypothesis The arguments that are sufficient to explain a hypothesis are the quasi-support for the hypothesis, while

Ngày tải lên: 30/03/2014, 02:20

... as the automatical noisereduction The conception of the noise image: The noise image is the phenomenon which the random image points of the images are effected by outside factors Therefore, they’ll ... about thegreyscale detail of the input document, we will have a chart the objects of the image The documentary image has 2 top Thefirst top will express characters, the other will express thebackground ... Picture 1 The matrix describing the histogram value of the imagepixels For example, an image with the histogram value of the imagepixel as above, if the size of the scanning window is 3*3, the value

Ngày tải lên: 12/04/2014, 15:39

... and synthesis materials, reports in the company •Observation, and interviews for information Scope of the study •Focuses on the situation of recruitment and gives recommendation to improve the effectiveness ... and Scope of the Study Rationale •Human plays the most important role in bringing success for the organization Objectives •Analyzing the situation of recruitment •Identifying the existing problems ... about the internship company and get familiar with works Research, take part in the recruitment process Recommendation to improve quality recruitment process Learn information about the company

Ngày tải lên: 28/05/2014, 10:14

... for their efforts and the quality of the material submitted The book contains 14 chapters divided into three parts The first part (Chapters 1 to 4) outlines aspects related to the impact of the ... already included in the formulation The focus of the Chapter 2 is on the voltage stability problem and the network capability to accommodate power from the wind systems In Chapter 3, the way in which ... have the right to republish it, in whole or part, in any publication of which they are the author, and to make other personal use of the work Any republication, referencing or personal use of the

Ngày tải lên: 20/06/2014, 05:20

... Improve the Integration maximum voltage limit line At D, the thermal capacity of the line connecting the WF to the system is reached From D to E, only the thermal capacity limit is violated The ... line, the voltage stability limit is reached This means that the voltage solution at the stability limit is determined by the intersection point of the P- locus, the Q locus and the BL In other ... the BL In other words, if the intersection point of the P-locus with the BL and the intersection point of the Q-locus with the border line coincide with each other, the voltage stability limit

Ngày tải lên: 20/06/2014, 05:20

... generator directly connected to the grid, the problems originated by the fluctuations in the power output of these generators (and therefore in the voltage, resposible of the flicker phenomenon) began ... extent, the tower shadow effect (Thiringer, 1996), both illustrated in figure 1 The first of these phenomena is due to the fact that the speed of the incident wind on the turbine increases with the ... constant, the problem that arises is to calculate how these changes affect the voltage at the point of common connection (PCC) and, therefore, the flicker emitted 3.1 Theoretical analysis on the P-Q

Ngày tải lên: 20/06/2014, 05:20

... practically the same results in comparison with the characteristics of the manufacturer ⋅ ⋅ ρδ Where: l is the length of the cable, D is the diameter of the conductor, ρ c is the resistivity, ω is the ... variation in the parameters of the cable, due to the non uniform distribution of the current through the cross section of the cable This variation is in function of the frequency, producing that the RGLC ... point (offshore) to the point of common coupling (onshore), in other words, the physic medium to transfer the energy from the wind farm to the main grid and all the support devices The transmission

Ngày tải lên: 20/06/2014, 05:20

... dynamic models The simulation of the power network will allow analyzing the effects of the plants proposed depending on the time The evaluation of the parameters of the network in the time will ... affects the control of the grid and the delivery of the stable power The introduction of large amounts of wind power into the grid increases the short-term variability of the load as seen by the ... that the contribution of these cannot be ignored and the control of the nodal voltages will not be possible using the traditional methods The modelling of the dynamic interaction between the wind

Ngày tải lên: 20/06/2014, 05:20

... lines ) The combination of these uncertainties and the physic nature of the system, in plus with the difficulty of predicting the behavior of all factors increase the uncertainty on the system Therefore ... increases the storage energy while the discharge by the turbine reduces the volume of the basin It is the characteristic of "storability" which leads us to consider not only the operation ... management system The following sections are specifically devoted to the optimization module with: the structure of input and output data, the mathematical modeling of the problem and the choice for

Ngày tải lên: 20/06/2014, 05:20

... promising The input to the controller consists in the difference between the maximum output power from the WES and the output power from the asynchronous link and, the derivative of this difference The ... line) The difference with the initial plan creates penalties The objective function’s variation is showed in the as the difference between the energy sale benefit (paid by the network) and the ... 139 When the wind production tends to increase, the wind generator can ensure the projected exchange power to the network Note that the storage need is lower At the end of the day, the storage

Ngày tải lên: 20/06/2014, 05:20

... results, we can be seen that the system trajectory follows the trajectory of the reference model which represents the trajectory of the HWDSS in the fault free situation Thus, the TS fuzzy model based ... power stations, the large size of the units in relation to the load, the need for larger spinning reserve due to the absence of interconnections, and the small stability margins raise the impact on ... fulfilled by the power system are the following: • The loading of the transmission lines should be within the accepted limits • Bus voltages should be in the range of 5%± around the nominal voltage

Ngày tải lên: 20/06/2014, 05:20

... the total angular momentum of the WT – thus the sum of the angular momenta of the electrical generator, the rotating blades and the gearbox – and the rotational speed There are some studies estimating ... most of these publications, simple models for either the power system or the wind turbines are used based mainly on the assumption that the aerodynamic torque acting on the rotor during the frequency ... in the wind turbine control level On the other hand, the Inertia control (case (e)) achieves the slowest rate of change of frequency Trang 9although the frequency minimum is the lowest among the

Ngày tải lên: 20/06/2014, 05:20

... is size of the time window In all cases h1=2 to met the regulations Remark that the values of BIAS and MAEare related to the first moment of the error, therefore they are related to the generated ... before being sent to the TSO The power that the system is effectively sending to the grid is Po( t) The difference P o( t ) − P is the deviation between the planned and the fed power; this difference ... account of the efficiency in the storage/recovery processes The changes inthe stored energy are defined as: dE where ˙Einis the input rate in the storage phase, ˙Eoutis the rate in the energy recovery

Ngày tải lên: 20/06/2014, 05:20

... the wind farm The active power variations following the wind speed changes are highly fluctuating from the steady state load flow level to the grid The performance coefficient Cp of the wind turbine ... SVC/STATCOM There are no significant rotor speed oscillations in the rotor speed of the induction generator with SVC in the network; however the rotor speed increases to 1.26 p.u with SVC in the network ... It can be observed that the effect of low voltage ride through (LVRT) is very minimum following the contingency and the presence of a FACTS device like the SVC improves the rotor speed stability

Ngày tải lên: 20/06/2014, 05:20

... with the grid, i.e which influence the power Therefore only the drive train is considered in the first place because the other parts of the wind turbine structure have less influence on power The ... with the blade pitch angle θ blade and rotor speed ω rot, are input to the aerodynamic block The output of the aerodynamic model is the aerodynamic torque T rot, which is the input for the transmission ... together with the generator speed ω gen The transmission system has as output the mechanical torque T hss on the high-speed shaft, which is used as an input to the generator model Finally, the

Ngày tải lên: 20/06/2014, 05:20

... used to determine the time dependent power output of the WTG using the operational parameters of the WTG The parameters commonly used are the cut-in wind speed Vci (at which the WTG starts to ... from the simulated hourly wind speed where P , r V , ci V and r V are the rated power output, the cut-in wind speed, the rated wind co speed and the cut-out wind speed of the WTG respectively The ... simulate the influence on the transient stability of power systems The model of each wind turbine includes the wind fluctuation model, which will make the model useful also to simulate the power

Ngày tải lên: 20/06/2014, 05:20