1 power flux of electromagnetic field in gap of induction machine

... EFFECT OF ELECTROMAGNETIC FIELD IN MACHINING PROCESS XUAN YUE (B.ENG., Tianjin Univ., P.R China) A THESIS SUBMITTED FOR THE DGREE OF MASTER OF ENGINEERING DEPARTMENT OF MECHANICAL ENGINEERING NATIONAL ... type of machining operation The tangential force often dominates in milling and turning operations The radial force is of particular interest in boring operations and the axial force in drilling ... normal type of wear and maintaining safe progressive flank wear is often the main concern in metal machining Excessive flank wear will lead to poor surface finish, inaccuracy and increasing friction...

Ngày tải lên: 05/10/2015, 19:03

... ovality shaped of the core, or by incorrect positioning of the stator or rotor during commissioning stage The air -gap of static eccentricity is independent of θr, the angular position of the rotor ... three-phase 30 self-inductance of the rotor winding, Rr is the resistance of rotor phase winding and Lm is the three-phase magnetizing inductance The instantaneous values of direct- and quadrature-axis ... machine slip 2.3 Bearing Faults Machines with rolling element bearings have moving bearings e.g., spherical balls, tapered rollers or cylindrical rollers, to support the rotating shaft The machine...

Ngày tải lên: 03/10/2015, 21:57

... ovality shaped of the core, or by incorrect positioning of the stator or rotor during commissioning stage The air -gap of static eccentricity is independent of θr, the angular position of the rotor ... three-phase 30 self-inductance of the rotor winding, Rr is the resistance of rotor phase winding and Lm is the three-phase magnetizing inductance The instantaneous values of direct- and quadrature-axis ... machine slip 2.3 Bearing Faults Machines with rolling element bearings have moving bearings e.g., spherical balls, tapered rollers or cylindrical rollers, to support the rotating shaft The machine...

Ngày tải lên: 04/10/2015, 07:58

... A.i = −q x & & & ∂& dt ∂x dt 2x3 ∂& dt ∂x dt  ∂x {x ÷ dt dt =0 =0   u không phụ thuộc tường minh vào u r r & x ∂ ( qϕ ) ∂A ϕ; A = 0; =0 & & ∂x ∂x Vậy, ru r dA x d ∂ −q = qϕ − qv.A & dt dt ∂x...

Ngày tải lên: 24/05/2014, 19:12

... mode-matching technique, method of moments and finite difference method defined in the frequency domain was proposed for electromagnetic wave scattering from structures containing complex cylindrical ... In chapter 14, the nonlinear absorption of a strong electromagnetic wave by confined electrons in low-dimensional systems in the presence of an external magnetic field was investigated By using ... explosion in the research with metamaterials according to two different mathematical viewpoints Finally, in the last chapter, beamforming of antenna arrays focused in near field zone or intermediate-field...

Ngày tải lên: 19/06/2014, 19:20

... nonparabolicity of distribution functions of carriers In [11, 12], the magnetoresistance was derived in the presence of a strong EMW (laser field) for two cases: the magnetic field and the electric field of ... electric field E = (E0 sin Ωt, 0, 0), the confinement potential is assumed to be V (z) = mωz2 z /2, the magnetic field is oriented in the plane of free motion of electrons (in- plane magnetic field) , ... phonon interaction has been taken into account and the influence of a strong EMW has been considered in details To make a comparison of the effect of different scattering mechanisms, in this...

Ngày tải lên: 31/10/2015, 10:41

... especially clear and illuminating Quite understandably, because of the importance of the phenomenon of the radiation of accelerating charges in the design and fabrication of instruments and devices, ... listed in the references 18.1.1 Motion of an Electron in a Constant Electric Field The first and simplest example of the motion of an electron in an electromagnetic field is for a charge moving in ... shown in Fig 18-2 Inspecting (18-11) we see that if  ¼ then ztị ẳ That is, the electron moves in a straight line starting from the origin along the z axis and ‘‘intercepts’’ the z axis at in nity...

Ngày tải lên: 19/04/2016, 11:40

... decreases with increasing temperature The decrease of the amplitude of the SdH oscillations in certain intervals of magnetic fields and EMW frequencies, is observed in the case of presence of the high-frequency ... magnetic field and an EMW with low frequency, the nonlinearity was explained by the nonparabolicity of distribution functions of carriers In Refs and 4, the MR was derived in the presence of an intense ... acoustomagnetoelectric field in a parabolic quantum well subjected to a crossed electric field and magnetic field in the presence of a sound wave.10 The acoustomagnetoelectric field is similar to the Hall field in...

Ngày tải lên: 16/12/2017, 06:12

... predicting salts transport in fields in China The objective of this study was to examine the change in hydraulic conductivity that occurs as a result of adding the gypsum, and to examine the ... amounts of these salts in soil and leachate were measured by ICP-MS Moreover, by taking the water balance for evapotranspiration in test fields in China into consideration, salt leaching in fields ... the beginning of leaching, decreased after a peak, and then increased and decreased again This behavior indicates that the initial leaching is like Na+ leaching, and the surplus Ca2+ is drained...

Ngày tải lên: 05/09/2013, 09:38

... i sin y ) Hàm mũ hàm tuần hồn có chu kì 2πi Thực vậy, ta có e kπi = cos 2kπ + i sin 2kπ = Suy e z + kπi = e z e kπi = e z Công thức Euler eiy = cosy +isiny Khi số phức z = r eiϕ = r(cosϕ +isinϕ) ... Euler ta có e iβx = cos β x + i sin β x e −iβx = cos β x − i sin β x (17) Suy • y1 = e αx eiβx = e αx (cos βx + i sin βx ) • y2 = e e • αx − iβ x =e αx (cos βx − i sin βx ) (18) • Nếu y1 y nghiệm ... sin βx 2i nghiệm phương trình vi phân (7) độc lập từ trường (19) y1 = tgβx ≠ const y2 (20) Do nghiệm tổng qt phương trình vi phân (7) y = C1eαx cos βx + C eαx sin βx = e αx (C1 cos βx + C sin...

Ngày tải lên: 26/01/2014, 02:20

... purposes In the hope of finding a solution to this confusion, Ellis, R (1999) offers a new approach to defining learning strategies He characterizes the main characteristics of learning strategies in ... knowing or guessing the meaning of words in context Zoubir-Shaw and Oxford (1995) found that males reported more often than females that “not knowing the meaning of a word impeded their thinking ... contribute indirectly to learning since they not lead directly to the obtaining, storing, retrieving, and using of language.” (Rubin & Wenden, 1987:23-27) 15 O’Malley and Chamot’s (1990) taxonomy Basing...

Ngày tải lên: 29/01/2014, 00:23

Ngày tải lên: 13/02/2014, 12:20

... in writing from the publisher Engineering Mechanics - Statics Chapter Problem 2-27 The beam is to be hoisted using two chains Determine the magnitudes of forces FA and FB acting on each chain ... the magnitude of force F in this chain is a minimum All forces lie in the x-y plane.What is the magnitude of F ? Hint: First find the resultant of the two known forces Force F acts in this direction ... figure, P is minimum when θ + θ = 90 deg θ = 90 deg − θ θ = 60 deg P sin ( θ ) P = F1 = sin ( 90 deg) F sin ( θ ) sin ( 90 deg) P = 40 lb T sin ( θ ) T = F1 = F1 sin ( 90 deg) sin ( θ ) sin ( 90 deg)...

Ngày tải lên: 17/02/2014, 14:20

... K, Hoffmann S, Bauer F, Friedrich U, Kardinal C, Feller SM, Biesinger B & Sticht H (2002) Structural investigation of the binding of a herpesviral protein to the SH3 domain of tyrosine kinase ... respectively retained in the centre of the interhelical linker and at the C-terminus of micelle-associated VpUcyt Position of VpUcyt relative to the micelle NMR signal intensities of individual VpUcyt ... casein kinase II-mediated phosphorylation of two serines in VpU [5] VpU binding to b-TrCP does not induce its own degradation Instead, VpU degradation is reported to be b-TrCP independent and involves...

Ngày tải lên: 18/02/2014, 06:20

... several subdomains of c-Myb revealed strongest subdomain interaction with the EVES-domain in the NRDregion of c-Myb, suggesting that this region might be involved in the UBC9 interaction (results ... reduction in intensity of the slower migrating forms (Fig 1B, lane 4) In this mutant, only a single additional band is seen, probably due to a less efficient sumoylation of the remaining K503 site Again, ... strongest interaction partners of c-Myb as judged by a low-copy bait screening in a cDNA library containing million independent clones, lending further support to the importance of the c-Myb–Ubc9 interaction...

Ngày tải lên: 21/02/2014, 00:20

... contains at least two kinds of antibodies which recognize LM4 and LM5 from the nonreducing terminal The weak agglutination inhibition activity of the b-1,2 linkage-containing heptaose obtained ... results for the b-mannose units were incorrect Fig Enzyme-linked immunosorbent inhibition assay of b-1,2 linkagecontaining oligosaccharides An inhibition assay of the reaction between Fr L-a and ... and 24 of Fr L, we could also calculate the molar ratios of the threeb-1,2 linkage-containing oligosaccharide side chains of the mannan of C albicans serotype A However, this mannan also includes...

Ngày tải lên: 17/03/2014, 03:20

... caspase-8-mediated pathway Rybp also interacts with ubiquitin-binding protein, procaspase-8, procaspase-10, and the HIPPI interactor apotin Interaction of HIPPI with Rybp is involved in murine neural development, ... amount of the interacting proteins but also on the affinities of interacting proteins The uncreased expression of caspase-1 observed in HD may be mediated through HIPPI The role of HIP-1 in translocation ... polyglutamine domain of mutant Htt is highly self-associative, resulting in aggregates ⁄ neuronal intranuclear inclusions Aggregates ⁄ neuronal intranuclear inclusions are observed in cell models, brains...

Ngày tải lên: 23/03/2014, 07:20

... Gal(b1-3)GalNAc-binding lectin peanut agglutinin failed to reveal any signal in embryonic salivary glands [8], which could mean that salivary O-glycan chains are elongated, thus abrogating peanut agglutinin ... abrogating peanut agglutinin binding Furthermore, the peanut agglutinin staining in the developing nervous system documented by D’Amico and Jacobs [8] could not be confirmed in our in situ hybridization ... proteinỈlL)1 slurry The integrity and amounts of FLAG-tagged recombinant proteins were inspected by western blotting Cloning of Drosophila cDNAs Total RNA was extracted from tight-rod disintegrated...

Ngày tải lên: 23/03/2014, 15:20

... transcription factor TGA2.2 is the main component of as-1binding factor ASF-1 and is involved in salicylic acid- and auxininducible expression of as-1-containing target promoters J Biol Chem 275, ... disks with H2O or a solution of mM SA As shown in Fig 3B, inducibility of GUS activity was maintained with any plant containing either of the as-1[GUS] transgenes Surprisingly, plant extracts from ... comprising parts of the 5¢ region and the open reading frame encoded by the W38-1 gene [35], was inserted into StyI/PstI cleaved pT5S/HDP containing the PR-1a gene The resulting plasmid was linearized...

Ngày tải lên: 23/03/2014, 15:21

... ocean connections of the Paratethys were interrupted The gigantic inland sea of the Paratethys turned into continuously shrinking basins A reduced salinity and the alkaline chemistry of the aquatic ... bipedal hominids DiVering from the Pliocene hominid evolution in Africa, the changing environments did not result in Eurasia in the emergence of bipedal apes, but in the extinction of generalised ... Madrid, Spain Salvador Moya-Sola ` ` Institute of Pakontology, M Crusafont, Escola Industrial 23, E-08201 Sabadell, Spain Valentin A Nesin Institute of Zoology, Ukrainian Academy of Sciences,...

Ngày tải lên: 29/03/2014, 17:20