control of power flow

Modeling of three winding voltage regulating transformers

Modeling of three winding voltage regulating transformers

... when the transformer control mode is (i.e., voltage control) or in Mvar flow into the terminals of windings 1, or when the transformer control mode is (i.e., reactive power flow control) When the ... no default values allowed for control mode Each winding can exert control on voltage, active power or reactive power on a selected local or remote bus  Transformer control mode (COD1): Voltage ... voltage base is the bus base voltage of the controlled bus, that is the bus where local or remote voltage control is desired It is important to keep in mind that the control band width (Vmax – Vmin)...

Ngày tải lên: 05/04/2016, 14:39

11 277 0
Vector control of three phase AC machines - N.P.Quang

Vector control of three phase AC machines - N.P.Quang

... advantage of the sin control is the simple distinction of inductive and capacitive reactive power by the sign of sin The DFIM control system consists of two parts: Generator-side control and ... Linear control structure for wind power plants with DFIM Construction of wind power plants with DFIM Grid voltage orientated controlled systems Control variables for active and reactive power ... turn-on/turn-off times Tu_on, Tu_off, Tv_on, Tv_off, Tw_on and Tw_off of the inverter legs will be calculated and stored intermediately in a RAM table An interrupt signal T0IR is triggered at overflow of...

Ngày tải lên: 18/12/2013, 09:10

346 1,4K 0
Báo cáo "Determining thermal expansion coefficients of three-phase fiber composite material reinforced by spherical particles " potx

Báo cáo "Determining thermal expansion coefficients of three-phase fiber composite material reinforced by spherical particles " potx

... ratio of fibre and matrix phase shear moduli of fibre and matrix phase Poisson’s ratio of fibre and matrix phase plane strain bulk modulus of composite material of aligned fibres shear modulus of ... composite material of aligned fibres Young’s modulus of composite material of aligned fibres volume fraction of fibre phase transverse linear thermal expansion coefficient of two - phase composite ... as functions of elastic specificities of constituents, thermal expansion coefficients of constituents, volume fractions of fibre and particle constituent For composite material of epoxy resin...

Ngày tải lên: 28/03/2014, 13:20

9 280 0
Báo cáo sinh học: "On the relevance of three genetic models for the description of genetic variance in small populations undergoing selection" docx

Báo cáo sinh học: "On the relevance of three genetic models for the description of genetic variance in small populations undergoing selection" docx

... the effect of linkage on the prediction of genetic variance over time in the FFM The effect of linkage was not studied in the model of Chevalet, as assuming ri! ! 0.5 for any pair of loci (i,j) ... effects of population intensity on the evolution of genetic variance were compared illustrates the case of intermediate value of selection intensity (i.e 25 % Figure The size and selection of males ... validation of the genetic model used for the MC simulations 4.1 Effect of number of loci Table I presents the values of RV[30] provided by the three models when ] [30 decreasing the number of loci...

Ngày tải lên: 09/08/2014, 18:22

12 279 0
SAP2000®  Linear and Nonlinear  Static and Dynamic  Analysis and Design  of  Three-Dimensional Structures

SAP2000® Linear and Nonlinear Static and Dynamic Analysis and Design of Three-Dimensional Structures

... is a registered trademark of Computers and Structures, Inc SAP2000 is a registered trademark of Computers and Structures, Inc Windows is a registered trademark of Microsoft Corporation Adobe and ... starting point in your exploration of this powerful and comprehensive version of SAP2000 Using this Manual 1-1 Introductory Tutorial for SAP2000 Version Overview of the Program SAP2000 is a stand-alone ... for the analysis and design of civil structures It offers an intuitive, yet powerful user interface with many tools to aid in the quick and accurate construction of models, along with the sophisticated...

Ngày tải lên: 06/09/2012, 15:56

47 1,4K 2
Báo cáo y học: "Postoperative pain scores and analgesic requirements after thyroid surgery: Comparison of three intraoperative opioid regimens"

Báo cáo y học: "Postoperative pain scores and analgesic requirements after thyroid surgery: Comparison of three intraoperative opioid regimens"

... pain scores of 30 mm and a standard deviation of 15, with a power of 0.8, a P value of 0.05 was considered to be significant Data were analyzed using Jandel Sigmastat statistical software (San ... 1/3 of patients after sufentanil and fentanyl based analgesia while almost always necessary in case of remifentanil based analgesia The necessity of anticipation of postoperative pain in case of ... 12/9/0/0 NS 50±25 NS 15% NS Necessity of Titration 11/24 13/24 Amount of morphine 4±3 5±3 in PACU (mg) Length of stay in the 78±31 73±25 PACU (min) Incidence of PONV 46% 43% (%) Sedation ; (0/1/2/3)...

Ngày tải lên: 02/11/2012, 10:14

3 516 1
Báo cáo y học: "ribriform-Morular Variant of Papillary Carcinoma: Association with Familial Adenomatous Polyposis Report of Three Cases and Review of Literature"

Báo cáo y học: "ribriform-Morular Variant of Papillary Carcinoma: Association with Familial Adenomatous Polyposis Report of Three Cases and Review of Literature"

... tumors [4] Recently Xu B [5] suggested that accumulation of mutant β-catenin contributes to the development of C-MV of PTC A handful of sporadic cases have also been documented [6] Table summarizes ... evidence of frequent somatic mutations in exon of the beta-catenin gene J Pathol, 2003 1: 5867 Cameselle-Teijeiro J., et al Somatic but not germline mutation of the APC gene in a case of cribriformmorular ... cribriformmorular variant of papillary thyroid carcinoma Am J Clin Pathol, 2001 115: 486-493 Yamashita T., et al Peculiar nuclear clearing composed of microfilaments in papillary carcinoma of the thyroid...

Ngày tải lên: 03/11/2012, 10:05

7 448 1
FOCUS ON - pronunciation of three-word phrasal verbs

FOCUS ON - pronunciation of three-word phrasal verbs

... around to it one of these days get out of get out of & gets out of getting out of got out of gotten/got out of Comment [S25]: adj (of persons) неумелый, неспособный, нерасторопный; (of organizations, ... малопроизводительный; (of machines) непроизводительный get out of p.v When you get out of something or get out of doing something you must but not want to do, you find a way to avoid it Sam got out of gym class ... the whole office was talking about it Take two pounds of beef, it , and put it in a frying pan The expedition leader spoke to us and the importance of taking plenty of water...

Ngày tải lên: 01/11/2013, 12:20

15 275 0
Tài liệu Báo cáo khoa học: "Lexicographic Semirings for Exact Automata Encoding of Sequence Models" pdf

Tài liệu Báo cáo khoa học: "Lexicographic Semirings for Exact Automata Encoding of Sequence Models" pdf

... the longest suffix of hi wi in the model As detailed in the “otherwise” semantics of equation 1, backoff arcs transition from state h to a state h , typically the suffix of h of length |h| − 1, ... backoff state This recursive backoff topology terminates at the unigram state, i.e., h = , no history Backoff states of order k may be traversed either via φ-arcs from the higher order n-gram of ... history of state si by one word) If it is of order k, then it will require m − backoff arcs to reach state sl , one fewer than the path to state sl that begins with a backoff arc, for a total cost of...

Ngày tải lên: 20/02/2014, 04:20

5 407 0
Báo cáo khoa học: Two CYP17 genes in the South African Angora goat (Capra hircus) – the identification of three genotypes that differ in copy number and steroidogenic output pptx

Báo cáo khoa học: Two CYP17 genes in the South African Angora goat (Capra hircus) – the identification of three genotypes that differ in copy number and steroidogenic output pptx

... steroid pathway Although the hydroxylase activities of these isoforms are similar, the lyase activity of CYP17 ACS+ results in the production of significantly more glucocorticoid precursors, essential ... the distribution of the two CYP17 isoforms in the South African Angora population, goats were genotyped on the basis of a restriction digest assay It was determined that 29% of the goats genotyped ... samples, a melting peak area ratio of : is indicative of gene duplication [26] An example of gene quantification using hybridization probes is the detection of the autosomal dominant demyelinating...

Ngày tải lên: 07/03/2014, 06:20

10 549 0
Báo cáo khoa học: Coordination of three and four Cu(I) to the a- and b-domain of vertebrate Zn-metallothionein-1, respectively, induces significant structural changes doc

Báo cáo khoa học: Coordination of three and four Cu(I) to the a- and b-domain of vertebrate Zn-metallothionein-1, respectively, induces significant structural changes doc

... vitro folding of the two domains of copper MTs [27] Replacement of Zn(II) by Cu(I) led to the proposal of the formation of Cu,Zn-MT intermediates and that, during the last steps of copper titration, ... Analysis of the NOESY and TOCSY (not shown) spectra of the two domains permitted the full sequence-specific assignments, the identification of the spin systems and the assignment of 398 and 252 of the ... Dolderer et al Fig Superposition of the present family of 30 structures of Zn4aMT (blue) with the published average structure of Cd4aMT (red) The coordinates of the Cd4aMT structure were extracted...

Ngày tải lên: 07/03/2014, 09:20

14 485 0
Báo cáo Y học: Role of three isoforms of phospholipase A2 in capacitative calcium influx in human T-cells pot

Báo cáo Y học: Role of three isoforms of phospholipase A2 in capacitative calcium influx in human T-cells pot

... isotype of PLA2 is phosphorylated after anti-CD3 stimulation in human T-lymphocytes Addition of TG potentiates the induction of mRNA of these four PLA2 isotypes The mechanism of action of TG on ... independently of increases in [Ca2+]i, probably via receptor coupling of this enzyme [36] Though TG stimulated the induction of expression of mRNA of four PLA2 isotypes, only three of them seem ... different isoforms of PLA2 We observed that TG seemed to act on the activation of three PLA2 isotypes as aristolochic acid and BPB, the inhibitors of type IB and type V, and BEL, an inhibitor of type...

Ngày tải lên: 08/03/2014, 09:20

7 484 0
THE EFFECTS OF THREE ORGANIC CHEMICALS ON THE UPPER THERMAL TOLERANCES OF FOUR FRESHWATER FISHES potx

THE EFFECTS OF THREE ORGANIC CHEMICALS ON THE UPPER THERMAL TOLERANCES OF FOUR FRESHWATER FISHES potx

... consist of a series of pools or billabongs where temperatures can reach up to 40ЊC in summer [48] The effects of the intensive use of pesticides on Australia’s aquatic ecosystems are of particular ... prior exposure to sublethal concentrations of nominated chemicals affects the CTMaximum values of the four species of fish MATERIALS AND METHODS Three of the test fish species are native to Australia, ... presence of each of the chemicals Chemical concentrations used in the present study are presented in Table Measured values or recovery rates of test chemicals can be estimated on the basis of the...

Ngày tải lên: 14/03/2014, 20:20

6 502 0
Báo cáo Y học: O-GalNAc incorporation into a cluster acceptor site of three consecutive threonines Distinct specificity of GalNAc-transferase isoforms pot

Báo cáo Y học: O-GalNAc incorporation into a cluster acceptor site of three consecutive threonines Distinct specificity of GalNAc-transferase isoforms pot

... in the formation of FITC-PT*TT*°PLK in the case of the action of pp-GalNAc-T1 and T2 according to the protein sequencing analysis (Fig 6) Effects of modification of N terminals of PTTTPLK Differences ... putative lectin domains of these isoforms are responsible for the unique GalNAcglycopeptide specificities [41] We therefore hypothesized that different subsets of pp-GalNAc-T isoforms are designated ... transferred nmol of GalNAc residues in 30 onto FITC–PTTTPITTTTK at a final concentration of lM in 50 lL-incubation mixtures Preparation of detergent-soluble microsome fractions of H.Ep.2 cells...

Ngày tải lên: 17/03/2014, 10:20

11 377 0
Báo cáo Y học: Purification and characterization of three galactose specific lectins from Mulberry seeds (Morus sp.) ppt

Báo cáo Y học: Purification and characterization of three galactose specific lectins from Mulberry seeds (Morus sp.) ppt

... presence of SDS; D, F-1c (MSL-3) in the presence of SDS Fig Determination of LC50 of mulberry seed lectins (W) for MSL-1 (*) for MSL-2 and (K) for MSL-3 Table Hemagglutination inhibition assay of mulberry ... concentration and a control experiment was performed containing 100 nauplii in mL of seawater After 24 h of incubation, the vials were observed using a magnifying glass and the number of survivors in ... neutral carbohydrate contents of the proteins were estimated by phenol/sulfuric acid method of Dubois et al [15] with D -glucose as the standard For identification of sugars, the lectins were hydrolyzed...

Ngày tải lên: 18/03/2014, 01:20

6 475 0
review of three movies

review of three movies

... John Hodge, from the novel by Irvine Welsh Ferris Bueller's Day Off One of the all-time greatest comedies, this movie tells the tale of a smart Chicago teenager (Matthew Broderick), who ditches ... of the best scenes are formed around Bueller's ability to gleefully manipulate everybody and everything around him Those side-splitting, thigh-slapping scenes have to be seen to be believed Of ... does! In a major way! A power failure allows the dinosaurs to escape from their cages and roam the park, causing destruction and chaos Magnificent direction by the master of film fantasy Steven...

Ngày tải lên: 21/03/2014, 22:50

3 210 0
Cushing’s Disease in Children: Report of Three Cases potx

Cushing’s Disease in Children: Report of Three Cases potx

... He had a height of 148.6 cm (25−50th percentile), a weight of 34.3 kg (10−25th percentile) and blood pressure of 160/ 110 mmHg He had signs of puberty; both testes had volumes of mL and pubic ... between 12 years months and 13 years Laboratory tests showed serum sodium of 146 mmol/L, potassium of 2.4 mmol/L, and chloride of 101 mmol/L His plasma ACTH level was 73.9 pg/ mL (16.3 pmol/L), and ... and purpuric striae were noted She had a height of 149.8 cm (75−90th percentile), weight of 65 kg (above the 97th percentile), and blood pressure of 114/80 mmHg Her breasts were Tanner stage III,...

Ngày tải lên: 22/03/2014, 10:20

5 345 0
Accuracy of Clinical Signs in the Diagnosis of Pulmonary Tuberculosis: Comparison of Three Reference Standards Using Data from a Tertiary Care Centre in Rwanda doc

Accuracy of Clinical Signs in the Diagnosis of Pulmonary Tuberculosis: Comparison of Three Reference Standards Using Data from a Tertiary Care Centre in Rwanda doc

... Features of Different LCA Models Fitted to the Data Numbers of Classes, Manifest Variables and Dependencies, and Goodness of Fit for the Models Model Number of Latent Classes Number of Manifest ... part of routine examination For HIV testing, specific informed consent was asked and counseling offered Approval for this study was obtained from the relevant authorities of the Ministry of Health ... the public wards of internal medicine of CHK, a 600-bed hospital of national referral center in Rwanda Three hundred consecutive patients who were hospitalized with a cough of at least weeks...

Ngày tải lên: 22/03/2014, 18:20

7 506 0
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