compiling and tuning to improve performance

... focus on customers and meet the demand of customers Effective marketing strategies help managers to have good customer services, deliver right products to right places and right customers  Distribution: ... railway, high way, and inland waterway These areas are installed and equipped with modern and advanced handling equipments which are suitable to every kind of cargoes, meeting the demand for different ... handling, forwarding and logistics  Ship towage and assistance  International container transshipment  Forwarding and transporting agent  Transporting containers from Haiphong to Laocai and...

Ngày tải lên: 27/10/2012, 16:51

... Các tham số QoS đƣợc đƣa vào để tính to n QoE tƣơng ứng Việc tính to n đƣợc thực qua việc so sánh tham số QoS với tham số QoS QoE chuẩn (có đƣợc từ tính to n nhƣ phần phƣơng pháp đánh giá QoE) ... ngƣời sử dụng Sơ đồ bố trí hệ thống quản lý đƣợc mô tả nhƣ hình Thuật to n tiến trình QoE biểu diễn hình dƣới: Hình 3.12: Thuật to n tiến trình QoE Đầu tiên, hệ thống đo tham số QoS từ phần tử cấu ... thang điểm 2, “Bad” tƣơng ứng thang điểm V-factor triển khai dựa mô hình gốc MPQM Tuy nhiên, việc “cho điểm” đánh giá chất lƣợng hình ảnh, V-factor cung cấp thêm thông tin cần thiết cho việc...

Ngày tải lên: 26/11/2013, 20:44

... trading range began When a stock breaks out in price and also in its Relative Strength vs other stocks, it is much more likely to be a true market leader and is more likely to follow through (See ... trades So before you get too excited about a four-week-plus flag or cup -and- handle breakout in a strong RS and EPS stock in a leading group, check these five features and be sure you have at least ... volume on the day of the breakout to show significant demand is coming in Demand volume at least 20% above the 50-day MA of volume on your breakouts and your odds will improve Strong volume can also...

Ngày tải lên: 21/01/2014, 13:20

... training contribute to improved performance - 18 Table 3.1 Career Training and F-14 Landing Performance (predicted probability) Career Flying Satisfactory Excellent Hours Landing Landing 500 79 1,000 ... Experience and Performance 35 Studies on Training and Performance 50 Studies on Aptitude and Performance 61 Bibliography 70 - vii TABLES Table 2.1 Number of Flights and Marginal ... 11 Table 2.6 Time to Complete Task, Based on Experience 13 Table 3.1 Career Training and F-14 Landing Performance 18 Table 3.2 Training in Previous Month and F-14 Landing Performance 18 Table...

Ngày tải lên: 17/02/2014, 22:20

... Linkages to Title V and other agencies • Data collection and reporting SSA § 1902(a)(43) Collaboration and Action to Improve Child Health Systems: Toolkit for State Leaders This toolkit is designed to ... Medicaid, Title V, and mental health agencies work together to assure that mental and behavioral health risks and Collaboration and Action to Improve Child Health Systems: Toolkit for State Leaders ... space to draw your State’s child health system as you see it and compare to the master diagram and to what others see Page 28 Collaboration and Action to Improve Child Health Systems: Toolkit...

Ngày tải lên: 14/03/2014, 09:20

... aerobic enzymes and mitochondria to begin with Hence, in order to improve VO2 Max, it is necessary to both stress the heart to improve stroke volume and also the Type I muscle fibers to get the necessary ... have to beat as often at rest.Well, another adaptation to endurance exercise is an increase in aerobic enzymes in the muscles and an increase in mitochondria density and number This serves to increase ... involves the breakdown of glucose to pyruvic acid and lactate acid without the presence of 02 This makes up the difference and supplies additional energy to your muscles to keep them going There are...

Ngày tải lên: 21/03/2014, 21:57

... aerobic enzymes and mitochondria to begin with Hence, in order to improve VO2 Max, it is necessary to both stress the heart to improve stroke volume and also the Type I muscle fibers to get the necessary ... have to beat as often at rest.Well, another adaptation to endurance exercise is an increase in aerobic enzymes in the muscles and an increase in mitochondria density and number This serves to increase ... involves the breakdown of glucose to pyruvic acid and lactate acid without the presence of 02 This makes up the difference and supplies additional energy to your muscles to keep them going There are...

Ngày tải lên: 02/04/2014, 18:00

... 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 additional •Employers and director in company ... about 60 days •Send to director their report after training EVALUATING SITUATION OF RECRUITMENT AT PTI THANG LONG ACHIEVEMENTS IN RECRUITMENT LIMITATIONS AND MY RECOMMENDATI ON TO IMPROVE THE QUALITY ... quality and quantity in the recent years • Supporting for managing and using human resource • Creates equal opportunities for all applicants and employees • Quite scientific and detailed • More and...

Ngày tải lên: 28/05/2014, 10:14

... in order to increase wind energy penetration and to improve the reliability and security of the network (Tsili & Papathanassiou, 2009) The most important aspects are related to active and reactive ... requirement is related to the capability of wind units to work within a power factor range between 0.95 leading and Wind Farm – Impact in Power System and Alternatives to Improve the Integration ... Thiringer, 2008) and it is well known that reactive power capability of DFIG is limited by: • stator current (heating of stator coils), • rotor current (heating of rotor coils), and • rotor voltage...

Ngày tải lên: 20/06/2014, 05:20

... related to reverse power flow, harmonics and voltage/reactive power control At the same time, System Operator requires behaviour of wind generators similar to the conventional plant, and thus ... supplies and price of oil On the other hand the growing need for energy consumption cannot be stopped or even limited as it is directly related to the rate of development and the standard of ... 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...

Ngày tải lên: 20/06/2014, 05:20

... usual to install capacitor banks that, automatically adjust the power factor at the turbine output to values close to one When changes in power are important, the control system of the capacitor ... for frequencies similar to those establishes: 0.725% to 0.92 Hz, 0.64% to 1.47 Hz and 0.56% to 2.27 Hz The difference is due, as mentioned above, to the fact that this standard considers rectangular ... (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 of all generators may be taken into account on the...

Ngày tải lên: 20/06/2014, 05:20

... characteristics like: 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, ... Near to the 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 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 is a material...

Ngày tải lên: 20/06/2014, 05:20

... 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 an rotor resistances Both active and reactive ... allowed to fluctuate from ±5% to up to ±7% Synchronous generator and other compensator devices regulate nodal voltage by supplying or absorbing reactive power In contrast induction generators absorb ... the rotor area in m2, and Cp is the power coefficient 100 Wind Farm – Impact in Power System and Alternatives to Improve the Integration Fig Grid coupled wind generator 6.1 Active power To show...

Ngày tải lên: 20/06/2014, 05:20

... storage capacity in order to better adapt to wind availability It seeks to determine the maximum and minimum storage basins at specific times The horizon of anticipation to be considered has to ... define, based on production offers 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 ... sensitive to the forecast wind power repartition and to the considered time scale It is interesting for the W+S operator to compare cases in order to find out the best adapted strategy to the wind...

Ngày tải lên: 20/06/2014, 05:20

... objective of Fault Tolerant Control (FTC) is to maintain current performances close to desirable performances and preserve stability conditions in the presence of component and/ or instrument faults ... optimisation problem and is seem to be adapted to such problem complexity being highly flexible and fast Concerning the real time reactive management, its main role is to manage variation and intermittency ... 26.51 €/MWh to 76.51 €/MWh) • At 10 a.m, the wind production increases from 9.26 MW to 11.26 MW At p.m, to response to the network need to reduce injected power, the W+S system • has to decrease...

Ngày tải lên: 20/06/2014, 05:20

... generator stator voltage U s to its rated value in the stator voltage reference frame The advantage of controlling the generator stator voltage U s to its rated value is that the generator and ... system is essentially a wound rotor induction generator with slip rings, with the stator directly connected to the grid and with the rotor interfaced through a back -to- back partialscale power converter ... converter and its control) The synchronous generator is connected to the grid through a full-scale frequency converter system that controls the speed of the generator and the power flow to the grid...

Ngày tải lên: 20/06/2014, 05:20

... in Power System and Alternatives to Improve the Integration and the capability of modern wind farms to provide auxiliary frequency control is demonstrated Frequency definitions and protection ... systems is the standard fixed speed wind turbine based on induction generator connected to the rotor through a transmission shaft and a gearbox The Active Stall Induction Generator wind turbine ... of two opposite torques acting on the rotor during a frequency change, i.e a frequency drop: a decelerating torque, proportional to the rate of change of dω df and therefore to the frequency...

Ngày tải lên: 20/06/2014, 05:20

... Ir: stator and rotor currents, Vs, Vr- stator and rotor terminal voltages ψs, ψr- stator and rotor flux linkages,Lm-mutual inductance (in per unit it is equal to Xm) rs, rr- Stator and Rotor resistances ... response compared to Static Var compensator (a passive thyristor switched reactor/capacitor) 234 Wind Farm – Impact in Power System and Alternatives to Improve the Integration 85 80 Rotor angle (Deg) ... Windfarms 3.5 Thyristor Controlled Series Capacitors (TCSC) Thyristor controlled series Capacitor schemes typically use a thyristor-controlled reactor in parallel with a capacitor to vary the effective...

Ngày tải lên: 20/06/2014, 05:20

... rotor speed response of induction generator with TCSC/UPFC is shown in Fig 25 242 Wind Farm – Impact in Power System and Alternatives to Improve the Integration It can be noticed that the rotor ... UPFC damps both rotor angle oscillations of synchronous generators and rotor speed oscillations of induction generator very effectively when compared with TCSC This is due to the reactive support ... empirical CDF to wind speed data The next step is the transformation to normal distribution with mean zero and variance one 250 Wind Farm – Impact in Power System and Alternatives to Improve the...

Ngày tải lên: 20/06/2014, 05:20

... The wind acting on the rotor plane of a wind turbine is very complex and includes both deterministic effects (mean wind, tower shadow) and stochastic variations due to turbulence (Mihet-Popa, ... first into mechanical energy at the turbine shaft and then into electrical energy (Heier S., 1998) Fig describes the conversion of wind power (PWIND) into mechanical (PMEC) and thereafter into electrical ... such as rotor-blade geometry and the performance prediction of wind farms The force of the wind creates aerodynamic lift and drag forces on the rotor blades, which in turn produce the torque on...

Ngày tải lên: 20/06/2014, 05:20