and controls to set the mapoptions object
Tài liệu Filter and Sort Records Using the DataView Object pptx
... from the ComboBox The current setting of the Sort property is compared to the column name that is chosen If the Name matches, then the expression DESC is added to the value that is assigned to the ... Using the command buttons, a routine is called that creates a DataView object, sets the RowFilter property, and then assigns the data view to the DataSource property of a ... Add the DataGrid, the Label, and the ComboBox controls shown in Listing 3.6 Table 3.7 DataGrid, Label, and ComboBox Controls Property Settings Object Property Setting DataGrid Name dgCustomers...
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Tài liệu Laser-Optimized Fiber: Built for Price, Bandwidth, and Distance to Make the Most of Your Investment doc
... products, grades, and cable constructions White Paper It is important to carefully examine your network and evaluate the distances and bandwidths required now and in the future To maximize your ... of the installed base, the IEEE is exploring ways to run 10 Gigabit Ethernet over 300 meters of 62.5µm fiber with the use of a singlemode laser source The proposed standard, however, is slow to ... to higher speeds In other words, you can install laseroptimized fiber today for use with slower data rates, and when the need for more bandwidth arises, you only need to upgrade electronics to...
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Báo cáo khoa học: Concepts and tools to exploit the potential of bacterial inclusion bodies in protein science and biotechnology pdf
... shifts toward the free version of r32, leading to induction of the stress response Nevertheless, the nature and variability of the recombinant protein stress response suggests a far more complex and ... the aggregate and instead attributed this distribution to the specific mechanisms of protein deposition and removal, and further suggested that aggregated proteins can complete their folding and ... Garcıa-Fruitos and Antonio Villaverde Electron and atomic force microscopies reach a nanometric – and even subnanometric – resolution but they rely on a more invasive approach to the sample In...
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TECHNOLOGIES AND APPROACHES TO REDUCING THE FUEL CONSUMPTION OF MEDIUM- AND HEAVY-DUTY VEHICLES docx
... scientific and engineering research, dedicated to the furtherance of science and technology and to their use for the general welfare Upon the authority of the charter granted to it by the Congress ... prior to and at the committee’s first meeting The purpose of these discussions was to explore what information and data could be made available to the committee and to take advantage of the expertise ... (FC) of the vehicle and the higher the payload the vehicle carries, the lower the LSFC The payload has an important effect on the fuel consumption, and the average value used for potential standards...
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Báo cáo khoa học: The equinatoxin N-terminus is transferred across planar lipid membranes and helps to stabilize the transmembrane pore pot
... between the monomers, which should stabilize the toroidal pore [19] Thus, the purpose of this work was to gain further insight into the structure of the EqtII pore, especially the topology of the ... the N-terminus is positioned on the trans side of the membrane Furthermore, the amino acids at positions and are exposed to the ion conductive pathway, and the N-terminus helps to stabilize the ... potential forces the entire N-terminus with the His-tag and linker containing arginine to become closer to the trans entrance of the pore, to enter the pore lumen and to clog it The rate of closures...
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Work placement report: Recruitment in Thang Long postal insurance company and recommendations to improve the quality of recruitment
... •Analysis 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 ... interview In the afternoon of that day •I have opportunity to participate in process interview candidates •I sat and listened to interview In the meeting And then… •I gave my opinion on the proposed ... RECRUITMENT Set up the recruiting process The quality and quantity in the recent years • Supporting for managing and using human resource • Creates equal opportunities for all applicants and employees...
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Wind Farm Impact in Power System and Alternatives to Improve the Integration Part 1 ppt
... stator current (heating of stator coils), • rotor current (heating of rotor coils), and • rotor voltage (limiting the rotor speed) The GSC could be used to control the reactive power and to improve ... which the stator is directly connected to the grid and the rotor is connected via slip rings to a two backto-back converters as shown in Fig The electronic power converter allows controlling the ... related to voltage variation and harmonic distortion in the network However, the incorporation of wind energy in power networks could affect the quality of the supplied voltage to the customers To...
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Wind Farm Impact in Power System and Alternatives to Improve the Integration Part 2 potx
... sensitivities for load power to changes in G and B In the area to the right hand side, load has positive sensitivity to changes in G and B, whereas in the area to the left hand side if G and/ or B is increased ... determined by the intersection point of the P- locus, the Q locus and 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 ... to I.Z and its centre located at the end of the E vector which is on the real axis Since α and β are constants, then the load power factor is also constant The locus for a constant power factor...
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Wind Farm Impact in Power System and Alternatives to Improve the Integration Part 3 pot
... between the generator and the network (after taking into account the compensation by the capacitor), the equivalent impedance of the network at the connection point, Z = R + jX , and the voltage ... separately the slow voltage variations, due to the injection of all the power of a generator in the grid, and the fast voltage variations, due to the stationary variation in the power with respect to ... transformer to raise the LV generated by the wind turbine (typically 690 V) to the value of the MV grid To estimate the total voltage distortion of a wind farm due to slow voltage variations, the effects...
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Wind Farm Impact in Power System and Alternatives to Improve the Integration Part 4 potx
... semiconductor layers, conductors made up with crown of strands or the fill between conductors Due to the impossibility to fill in directly the data of the cable to the PSCAD software, the physic ... center of the conductor there are more lines of magnetic force than near the rim This causes an increment in the inductance toward the center and the current tends to crowd toward the outer surface ... effect is caused by the voltage difference from the conductor to ground, which provokes the storage of electric charge in the conductor Finally, there is a leakage current to ground The dielectric...
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Wind Farm Impact in Power System and Alternatives to Improve the Integration Part 5 pptx
... is the voltage, P is the real power, X is the sum of the stator and rotor reactances, Xc is the reactance of the capacitor bank, Xm is the magnetizing reactance, and R is the sum of the stator ... where the input is the network demand power and the output is the provided wind power This system has to response to the management requirements in taking into account the wind vagaries, the storage ... minute intervals to derive the total real power curve for the wind farm Figure shows the wind speed (top) and the real power (bottom) produced by a wind farm Fig Wind speed (a) and the real power...
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Wind Farm Impact in Power System and Alternatives to Improve the Integration Part 6 docx
... and demand loads, the best compromise towards the power demand and the amount of energy to be delivered This is to minimize the total operating costs while ensuring the safe operation of the system ... storage day by day In order to optimize economical objective, the system destocks completely at the end of the day The second case is illustrated by the full-filled line on the Fig 15 As the objective ... maximize the benefit of wind power production; • to anticipate risks and to predict the operating margin to minimize the impact of the intermittent nature of production and thus limit the these...
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Wind Farm Impact in Power System and Alternatives to Improve the Integration Part 7 pot
... speed The control objectives on the full load area are based on the idea that the control system has to maintain the output power value to the nominal value of the generator The torque at the turbine ... voltage (Efd) of the SG and the direct-current set point (Iref) of the converter The measurements are the voltage amplitude (Vb) and the frequency (f) of the AC bus The wind speed (ν) and the load (ν1) ... induction generator The Power Electronic Interface (PEI) connecting the load to the main bus is used to fit the frequency of the power supplying the load as well as the voltage Fig shows the overall...
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Wind Farm Impact in Power System and Alternatives to Improve the Integration Part 8 pot
... controls the speed of the generator and the power flow to the grid The full-scale frequency converter system consists of a back -to- back voltage source converter (generatorside converter and the ... reflected in the generator speed ωgen The generator-side converter controller keeps DC-bus voltage U dc constant and controls the generator stator voltage U s to its rated value in the stator voltage ... Power System and Alternatives to Improve the Integration switches The rating of the converter system in this topology corresponds to the rated power of the generator plus losses The presence...
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Wind Farm Impact in Power System and Alternatives to Improve the Integration Part 9 potx
... coupling of the rotational speed of the WT and the system frequency and of the lower inertia constant of the WT compared to a standard conventional generator connected to the grid However, in the case ... decelerating torque, proportional to the rate of change of dω df and therefore to the frequency , which makes the rotor speed follow the rotor speed dt dt the frequency drop – an accelerating torque, ... frequency converter to the grid The converter decouples the generator from the grid; the generator and the turbine system are not directly subjected to grid faults in contrast to the direct grid...
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Wind Farm Impact in Power System and Alternatives to Improve the Integration Part 10 pot
... related to the first moment of the error, therefore they are related to the generated power, but the values of RMSE and SDE are related to the second order moment and the variance of the error All the ... results of the regulated system The stored energy and sends the requested power to the storage system to be stored or recovered It uses the data provided by the Average block that implements the feedback ... term to correct the states of bias The TSO block is mainly a logger of the power feed to the grid It detects the in band and out band states according to the Δ parameter, which is defined in the...
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Wind Farm Impact in Power System and Alternatives to Improve the Integration Part 11 pptx
... Rotor Speed Response of induction Generator with SVC/STATCOM There are no significant rotor speed oscillations in the rotor speed of the induction generator with SVC in the network; however the ... minimizes the voltage /rotor speed oscillations of the induction generator Among series connected FACTS controllers the UPFC damps both rotor angle oscillations of synchronous generators and rotor ... for the sole purpose of prediction, for both the fitting and prediction processes Figures and show the histograms and time series, respectively, for both the actual (Weibull) wind speed X and...
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Wind Farm Impact in Power System and Alternatives to Improve the Integration Part 12 potx
... represented on the scheme The wind turbine contains also the tower cable making the connection between the 0.96 kV/10 kV transformer and the 10 kV cable at the bottom of the tower The 10 kV cables ... on the side of the rotor blade which is not facing the wind This stall prevents the lifting force of the rotor blade from acting on the rotor As the actual wind speed in the area increases, the ... blades to the speed of the wind As shown in Fig 1, the wind model generates an equivalent wind speed ueq, which, together with the blade pitch angle θblade and rotor speed ωrot, are input to the...
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Wind Farm Impact in Power System and Alternatives to Improve the Integration Part 13 potx
... factor of three; the lengths of lines L18 to L20, L23, L25 to L27 were increased by a factor of four; the lengths of lines L24, L28 to L30, and L32 to L37 were increased by a factor of six The ... series respectively, x and y are the mean values of the first and second time series, x and y are the standard deviations of the first and second time series, and n is the number of points ... from the 0th to 4th year to meet the system peak load of 4220 MW Stage is from the 5th to 10th year to meet the system peak load of 4760 MW 5.1 The system planning using the D approach The intent...
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Wind Farm Impact in Power System and Alternatives to Improve the Integration Part 14 pptx
... vcut−o f f The transitions between the states are smooth because of the technical characteristics of the rotor and generator in the real curve The most interesting state to be observed is the partially ... speed μh , the hourly standard deviation σh , the standard deviation σα of the {αt } process and the AR and MA coefficients φ1 φ4 and θ1 θ4 , respectively The output generated is the hourly ... and by the corresponding rates of the MTBF and MTTR in the case of transitions to and from the Failure state, respectively The MTBF is used for both transitions from the On and Off states The rates...
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