safer and greener catalysts design of high performance biodegradable and low toxicity ionic l
Integrated servo mechanical design of high performance mechanical systems
... dynamical performance of the overall control system is well known to be dependent on both the controller and mechanical designs [18, 19] As such, the achievable performance and robust stability of ... a plant based on a low- order controller is proposed The low- order controller is de- signed to compensate for the frequency response of the original mechanical plant at low frequencies, and plant ... methods of Linear Quadratic Estimator (LQE) design and Linear Quadratic Regulator (LQR) design are commonly used for designing the baseline controller, and a simple choice for Q is the Finite Impulse...
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Analysis, design and implementation of high performance control schemes in renewable energy source based DC AC inverter for micro grid application
... 275 List of Figures xl ∗ G.3 Experimental waveforms of load voltage error vL − vL , load voltage vL , SPWM control signal vC and inverter current ii to show the ∗ dynamics of Lyapunov function ... voltage vg , load voltage vL , ∗ load voltage error vL − vL and SPWM control signal vc with Lya- punov function based controller plugged in when load voltage refer∗ ∗ ence is changed from vL (t) = ... grid voltage swell condition, of grid voltage vg , load voltage vL , load current iL and inverter voltage vi with P + SRC controller working 102 5.15 Experimental results under...
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Analysis, design and implementation of high performance control schemes for three phase PWM AC DC voltage source converter
... and Mr Jalil in PCB fabrication Lab The four and half years in NUS is surely a valuable experience My warmest i ii thanks go to my fellow research scholars in Electrical Machines and Drives Lab ... controller 126 4.9 Experimental result of dc link voltage, phase a input voltage and current by using a single frame controller 126 4.10 Experimental result of dc link ... F.10 Performance and input of dual mode control (a) performance of amplitude and frequency control (b) input of amplitude and frequency control 220 List of Figures...
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Báo cáo hóa học: " Research Article Development and Evaluation of High-Performance Decorrelation Algorithms for the Nonalternating 3D Wavelet Transform" pdf
... 5] L L H H L L H H LPF [n/2 × (N/2 × N), 6] LL LL HPF [n/2 × (N/2 × N), 6] LH LH Spatial domain (columns) level Spatial domain (columns) level Figure 4: NoAl-classic algorithm: vertical spatial ... decomposition levels over all the temporal subbands (L and H) and not only on those pertaining to the temporal low- frequency sub-bands; as done by the NoAl-classic (only L subbands in Figure 2) and classic ... levels of temporal and spatial decompositions, but the spatial transform is applied over all the temporal sub-bands, as done by the NoAl-N0 algorithm The NoAl-classic, NoAl-N0, and NoAl-N1 algorithms...
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Early age shrinkage monitoring of high performance cementitious mixtures using monolithic and composite prism specimens
... a fluid or gaseous media, during the period of time which cementitious material is still fluid and workable, the S-wave transmitted will be fully reflected and reflection loss would be equal to ... is also addressed to all the technologists of the Structural and Concrete Laboratory for their indispensable assistance in ensuring the successful completion of all laboratory experimental works ... hardening of concrete [Grosse and Reinhardt (2001)] On the other hand, the reflection method is based fundamentally on the phenomenon that an ultrasonic wave will be partially reflected and partially...
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The Future of High Performance Database Processing
... This allows them to be composed into dataflow graphs that allow pipeline parallelism (left) in which the computation of one operator proceeds in parallel with another, and partitioned parallelism ... parts of a large database), parallel (exploit parallel processors), and recoverable (allow the operation to be canceled and return to the old state) 23 Summary and Conclusions Like most applications, ... collection of disks, allowing parallel disk access and parallel processing Database systems pay considerable attention to clustering related data together in physical storage If a set of tuples...
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This article appears in the February 2010 issue ofThe journal of high-performance potx
... the office on the client’s behalf, bringing its local knowledge and skills to bear And while Li & Fung may have a global footprint, the firm also realizes the value of being geographically close ... sources Although Wall Street and the City of London remain highly attractive financial centers, pools of capital are increasingly visible in the emerging world as well—not only in nascent capital markets ... Rise of the Multi-Polar World,” Accenture’s point of view on globalization and its impact on business, and of the follow-up study, “Strategies for Achieving High Performance in a Multi-Polar World,”...
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This article originally appeared in the 2012, issue ofThe journal of high-performance ppt
... done Outlook 2012 Number Global expansion adds additional complexity for retailers Initially, the favored model combined central management of the digital channel with local management of the ... digitization and enable the fast deployment of solutions at scale will have a key competitive advantage Businesses looking to gain this advantage will need to clearly define how they will innovate, implement, ... dramatic example After a comparatively slow start in online retailing, Wal-Mart Stores has considerably augmented its digital marketing capabilities and talent pool by acquiring small firms focused...
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Báo cáo nghiên cứu khoa học: "Analysis of Early-age cracking in restrained ring specimens of high performance concrete using finite element method" pdf
... Table Table Chemical composition and physical properties of silica fume, fly ash, and slag Mineral admixture Silica fume Fly ash Slag SiO2 93.15 49.39 33.12 Main chemical composition (%) Al 2O ... mechanical properties of the concrete at five days of age and steel used, respectively, are presented in Table Table Properties of material of the concrete and steel Material Elastic modulus, Ec, ... should plotted using Thorenfeldt’s analytical equation ANSYS allows the non-linearity of materials to be defined by the user in the form of solutiondependent variables, for example strain Namely,...
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Control of high performance single phase DC AC inverter
... officers, lab-mates and friends from Electrical Machines and Drives Lab, Power Electronics Lab and Power Systems Lab Lab officers Mr Woo is always diligent, helpful and friendly to all the students ... with relatively low THD This scheme could be implemented either in digital or analog controller Sinusoidal PWM (SPWM) modulation algorithm usually use a sinusoidal feed-forward signal plus a feedback ... control loops, an inductor current inner loop and a load voltage outer loop to achieve fast response, and uses knowledge of load voltage and load current to decouple the system Load current also...
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Desalination by membrane distillation fabrication of high performance membranes
... include Polytetrafluoroethelyne (PTFE), Polypropelene (PP) and Polyvinyldene flouride (PVDF) PTFE having a low surface energy of 9.1 × 10-3 is a highly crystalline polymer which shows excellent ... Instruments Limited was used to measure the contact angle of a hollow fiber as follows: The hollow fiber was immersed into distilled water and the advancing contact angle was calculated with the aid of ... mean free path of the gas is small compared with the pore diameter In 19 this region, molecule-molecule collisions are dominant over molecule-wall collisions and the mass transfer flux can be described...
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Early age deformation characteristics of high performance concrete
... both in the pore solution and on the surface of cement particles Ettringite, also called calcium sulfoaluminate hydrate, comprises needle-like crystals As a result, a large volume of fine pores is ... load was measured by a 500 kN load cell, and the deformation was measured by linear variable differential transducers (LVDT) parallel to the loading axis and centered at mid-height of the cylinder ... modulus of elasticity was then calculated as follows: Ed = 4x10-12F 2L2 D (3.1) Where: Ed - Dynamic modulus of elasticity (MPa) F - Frequency (Hz) L - Length of the specimen (mm) D - Density of...
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Early age deformation characteristics of high performance concrete
... both in the pore solution and on the surface of cement particles Ettringite, also called calcium sulfoaluminate hydrate, comprises needle-like crystals As a result, a large volume of fine pores is ... load was measured by a 500 kN load cell, and the deformation was measured by linear variable differential transducers (LVDT) parallel to the loading axis and centered at mid-height of the cylinder ... modulus of elasticity was then calculated as follows: Ed = 4x10-12F 2L2 D (3.1) Where: Ed - Dynamic modulus of elasticity (MPa) F - Frequency (Hz) L - Length of the specimen (mm) D - Density of...
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MULTI OBJECTIVE OPTIMIZATION ON PRECISION DIE DESIGN OF HIGH PRESSURE DIE CASTING tối ưu hóa đa mục TIÊU TRONG THIẾT kế CHÍNH xác KHUÔN đúc áp lực CAO
... the ProCAST® Software commercial built in the PreCAST module to calculate for speed of molten alloy At that filling time, there is a period of liquid metal flows from the gate until the entire ... Die-casting with full inlet The results of the optimum parameters via Taguchi Design will be installed in ProCAST software with parameters for two cases (full inlet and half inlet): - gate area of 40mm2 ... gate location: group - speed of the liquid metal of the gate is: 50 m/s - the temperature of molten aluminum: 640° C - the temperature of die: 180° C - water cooled With full inlet filling of the...
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Tài liệu Experiences in Design and Implementation of a High Performance Transport Protocol doc
... flows and UDT flows between SARA and StarLight Realtime snapshot of the throughput The UDT flows have similar performance and leave enough space for TCP flows TCP Friendliness • Impact on short life ... Otherwise, any flow will obtain at least half of its fair share • Does not take more bandwidth than concurrent TCP flow as long as RTT ⋅ L ≤ SYN ⋅ 108 / Efficiency • UDT bandwidth utilization – 960Mb/s ... (Additive Increase Multiplicative Decrease) • Fair: max-min fairness • Stable: globally asynchronously stable • But, inefficient and not scalable – In grid networks (with high bandwidth-delay product)...
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Analysis and performance of high efficiency synchronous reluctance machines
... Flux-guided RSM Figure Experimental solid rotor reluctance machines Table Ld, Lq, Ld/Lq of Solid Rotor Reluctance Machines Machine 1FG/Pole 2FG/Pole 3FG/Pole 5FG/Pole 1FG/Pole 2FG/Pole 3FG/Pole ... and multiple fluxbarriers Although, high saliency ratios are achievable with axially laminated design but it is rather expensive and difficult to manufacture It is possible to achieve high saliency ... 3FG, 2FG and 1FG Ld, Ld, Ld, Lq, Lq, Lq, Ld,Lq (H) 5FG 2FG 1FG 5FG 2FG 1FG 0 1 2 I, A Figure Ld and Lq for 5FG, 3FG, 2FG and 1FG The experimental performance of these machines has also been improved...
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Preparative isolation and purification of six volatile compounds from essential oil of Curcuma wenyujin using high-performance centrifugal partition chromatography doc
... temperature Total rotor volume of this model is 240 mL and total number of cells is 3136 in which cell length is 15 mm and the distance to the cell center is 82.5 mm Descending and ascending modes ... solvent system selection A compound with a small K value may come out with the solvent front and result in a loss of peak resolution while a large K value produces excessive running time and band ... in the column leading to lower peak resolution On the other hand, higher revolution speeds may produce excessive sample band broadening by violent pulsation of the column because of elevated pressure...
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Understanding High Performance Work Systems: The Joint Contribution of Economics and Human Resource Management pptx
... controlling supervisor.” (Lawler 1992: 30) In HPWS, workers are to a large degree self-controlled and self-managed (p 28) With the help of leaders who develop a clear vision, mission, and goals, ... of the workplace, workers will 12 be able to satisfy their higher needs, and because of their high motivation, will choose high effort This is clearly the case with HPWS A slightly more complex ... more flexible but consistent with the use of low skill, low wage 18 workers (ibid: 45) The existence of and temptation of this low wage path is another obstacle to the diffusion of HPWS Conclusions...
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Báo cáo "Design of phase-coded transmitter and high sensitive receiver of radar system " doc
... on logic level of the Barker code at control pin Local oscillators in both of the transmitter and the receiver are made from the VCO and PLL circuits that are controlled by the microcontroller ... Mixer, IF Logarithmic Amplifier and Detector The IF Logarithmic Amplifier is a non-saturating amplifier which output voltage is linear function of input voltage for low amplitude signals and logarithmic ... Because of delay of some components, we also observe delay of BPSK signal compare with a bit of sequence Fig BPSK signal of Barker code bit duration 0.8 µs and IF 10.3 MHz 3.3 Local oscillator The LM2316...
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QUASILINEAR CONTROL: Performance Analysis and Design of Feedback Systems with Nonlinear Sensors and Actuators pot
... description of LPNI systems than the latter, and the controllers designed using the QLC result, generically, yield better performance than those designed using linear control (LC) Finally, the content of ... points of the root locus, instrumentation selection, and the performance recovery, are also formulated and solved 1.6 Summary • The analysis and design of closed loop linear plant/nonlinear instrumentation ... design, even for relatively large values of α The SLQR solution explicitly accounts for α and, thus, yields a nonzero output variance The performance of the actual system with an SLQR controller...
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