speed control of three phase induction motor with advanced thermal protection pdf
Design and Implementation of a Three-Phase Induction Motor Control Scheme
... proportional to the relative speed of the magnetic field with respect to the speed of the rotor. 4.2 The Electrical principles of an Induction motor The induction machine is an electrical ... of the degree of Bachelor of Engineering (Honours) in the division of Electrical Engineering, I present the following thesis entitled “Design and Implementation of a Three- Phase Induction Motor ... a control strategy that varies the frequency and voltage of the signal applied to the windings of the induction motor, while controlling the flux created in the air-gap of the induction motor. ...
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Tài liệu Insight into Alternative Approaches for Control of Avian Influenza in Poultry, with Emphasis on Highly Pathogenic H5N1 doc
... protection of chicken embryos against H7N3 subtype [120]. Catechins alter the infectivity of influenza viruses probably not only by direct interaction with viral HA but also by inhibition of ... alternative approaches for control of AIV in poultry particularly against the HPAI H5N1 subtype. 2. Antivirals 2.1. Chemotherapy The use of chemotherapeutic agents for control of AIV in poultry was ... degradation of complementary viral mRNAs and results in inhibition of a broad spectrum of influenza viruses replication in cell lines, chicken embryos and mice just before or after initiation of an...
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Báo cáo "Determining thermal expansion coefficients of three-phase fiber composite material reinforced by spherical particles " potx
... coefficients of three- phase composite material more than that of two - phase composite material in [7]. So, embedding spherical inclusions into continous matrix phase of two - phase fiber composite ... coefficients of three- phase composite material reduce. 4. Conclusions Based on the idea solving the problem of three- phase composite material through problems of known two - phase composite ... expressions of thermal expansion coefficients of three- phase fiber composite material reinforced by spherical particles as functions of elastic specificities of constituents, thermal expansion...
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Control of enzymatic browning in apple with ascorbic aci
... than the combination of P-CD with an equimolar concentration of AA (Expt. 12). The combination of B-CD with AAP was similar in effectiveness to that of sodium cin- namate with AAP, both treatments ... obtained. An index of treatment Volume 54, No. 4, 1989-JOURNAL OF FOOD SCIENCE-997 CONTROL OF ENZYMATIC BROWNlNG IN APPLE. . , Table 1 -Inhibition of enzymatic browning at cut surface of Red Delicious ... substrates might be Volume 54, No. 4, 1989-JOURNAL OF FOOD SCIENCE-1001 CONTROL OF ENZYMATIC BROWNING IN APPLE. . controlled by the addition of AA or AA derivatives, as was done in the combination...
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Tài liệu Báo cáo khoa học: Three-dimensional structures of thermophilic b-1,4-xylanases from Chaetomium thermophilum and Nonomuraea flexuosa Comparison of twelve xylanases in relation to their thermal stability pdf
... were chosen withoutligands.The superimposition of three- dimensional structuresconfirmed the subgroups of xylanases based on sequencesimilarities. For example, the lowest rmsd value of thermo-philic ... 197residues with a sequence GNPGNP at the C-terminus. Thesequence GNPGNP seems to be a part of the C-terminal tail of the full-length NFX with total 301 residues. The aminoacids of the C-terminal ... method with bulk-solvent corrections. The water molecules of the CTXmodel were positioned automatically with the wARP [26]but were also checked and finalized with the O. The watermolecules of...
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THE EFFECTS OF THREE ORGANIC CHEMICALS ON THE UPPER THERMAL TOLERANCES OF FOUR FRESHWATER FISHES potx
... recognized as a measure of thermal tolerance and an indicator of thermal stress in ec-tothermal animals [11,12]. The term CTM represents both aparameter and a method, and often has been used to ... comprehen-sive definition of CTM was advanced by Cox [10], who statesthat, ‘‘The Critical Thermal Maximum or Minimum is thearithmetic mean of the collective thermal points at which lo-comotory activity ... temperature tolerance of stream fish.J Thermal Biology3:105–108.30. Bonin JD. 1981. Measuring thermal limits of fish.Trans Am FishSoc110:662.31. Smith MH, Scott SL. 1975. Thermal tolerance and...
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báo cáo hóa học:" Association between neuroserpin and molecular markers of brain damage in patients with acute ischemic stroke" pdf
... patientstreated with tPA [6], which is in line with the results of the present manuscript, where a greater decrease in neu-roserpin serum levels within the first 24 hours was corre-lated with lower ... neuro-protective role of neuroserpin without the disturbance of rtPA. Seven patients did not accept to participate and6 patients were lost during the follow-up, therefore, atotal of 129 patients ... research was carried out in accordance with theDeclaration of Helsinki of the World Medical Associa-tion (2000) and approved by the Ethics Committee of the participating hospital. Informed...
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Báo cáo hóa học: " Research Article Capacity of Wireless Ad Hoc Networks with Opportunistic Collaborative Communications" pdf
... assumptions. In [1], the scaling law of the transport capacity (measured in bps per meter) versusthe number of nodes that was derived under the assump-tion of a static network with multihop (MH) and point-to-point ... computation of the ca-pacity region of wireless networks under given transmissionprotocols was proposed. The protocols considered in [2] in-cluded single/multihop transmission with or without ... the capacityregion of an ad hoc network with single-relay amplify-and-Forward (AF) transmission was studied.A major observation in interpreting the capacity region of [2] with MH is that in...
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Tài liệu ime Control of a Three Phase 4 Wire PWM Inverter with Variable DC Link Voltage and Battery Storage for PV Application doc
... filter ances is elimialidity of themore attention large centraete TimM Invge and. Said El-Barol of a three pof three phasn with batteryof a photovolvoltage ... voltesult of the ccapacitor vow=2000Ω ) ats of the deae inverter cur due to loadgure 5 showsoltage of the Rv=20Ω , Rwynamic perfoage is quickcontrollable oltage of ... caseer of PV genrature and clition it is neV-I charactby the DC/Doal of the syh constant ampoint of the ue to load unand midpoins problem thding to load ar region of...
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