forces on charged particles in magnetic fields
grasso, rubinstein. magnetic fields in the early universe
Ngày tải lên :
24/04/2014, 17:19
... component of the signal This new component would be due to an original photon creating an electron}positron pair and in turn the charged particle sending a photon in the original direction by inverse ... 4.5 Magnetic "elds from in# ation 4.6 Magnetic "elds from cosmic strings Particles and their couplings in the presence of strong magnetic "elds 5.1 Low-lying states for particles in uniform magnetic ... nucleosynthesis, on the masses and couplings of the matter constituents, on the electroweak phase transition, and on the baryon and lepton number violating sphaleron processes Several intriguing common aspects,...
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Báo cáo hóa học: " Assessment of Influence of Magnetic Forces on Aggregation of Zero-valent Iron Nanoparticles" ppt
Ngày tải lên :
21/06/2014, 08:20
... characterization of iron nanoparticles using TEM according to methods of its preparation is done In [20], a type of aggregation according to beginning concentration of iron nanoparticles is studied ... l-1) to be possible to neglect the influence of the magnetic forces Conclusion The influence of the magnetic forces among iron particles on the rate of aggregation in terms of the “effective range” ... large Consequently, the dashed line in the Figure gives a good information about the influence of magnetic forces on aggregation of aggregates of different sizes The solid line comparing the influence...
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Báo cáo hóa học: " Electron States and Light Absorption in Strongly Oblate and Strongly Prolate Ellipsoidal Quantum Dots in Presence of Electrical and Magnetic Fields" pot
Ngày tải lên :
22/06/2014, 19:20
... growing when the magnetic field intensity is increased This is conditioned by growth of the magnetic quantization contribution into the CC energy increase Inter level distance is increased with magnetic ... applications, in particular in large twodimensional focal plane arrays in the mid- and far infrared (M&FIR) region, having important applications in the fields of pollution detection, thermal imaging ... absorption of a system consisting of semiconductor QDs having identical dimensions For comparison of the obtained results with experimental data, one has to take into account the random Fig Absorption...
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Báo cáo nghiên cứu khoa học: "INFLUENCE OF PARAFIN CONCENTRATION ON THE SEDIMENTATION OF DISPERSED PARTICLES IN THE PETROLEUM MEDIA" pdf
Ngày tải lên :
22/07/2014, 02:20
... sedimentation of dispersed particles in the petroleum media Methods of calculating the influence of parafin concentration to the sedimentation of particles are same to the one were shown in [1] The ... equation Tables and are for the same ratio coefficient K in tables and 4, but the Stokes equation is replaced by the Richardson & Zaki’s correlation 2.3 Influence of parafin concentration on the ... Comparison the calculated and experiment results are shown in table 9, which show the more adequate correlation with the measurred results CONCLUSION 1) In petroleum containing parafin, beside...
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Region-specific effects on brain metabolites of hypoxia and hyperoxia overlaid on cerebral ischemia in young and old rats: a quantitative proton magnetic resonance spectroscopy stud pot
Ngày tải lên :
10/08/2014, 05:21
... increase in Lac is an interesting finding in that the Lac level in the hippocampus might be considered a useful marker of aging Indeed, increased Lac levels have been found in the brains of healthy ... tube A coassial insert containing a solution of 30 mM TMSP-d4 in D2O was used as an external standard in each spectroscopic investigation The quantification of metabolites in brain extracts was ... hippocampal Lac concentration following ischemia-hyperoxia may reflect a milder insult resulting only in neuronal damage rather than death induced by hypoxia That hippocampus is a brain region particularly...
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Báo cáo sinh học: " Genetic effects of static magnetic fields. Body size increase and lethal mutations induced in populations of Drosophila melanogaster after chronic exposure" potx
Ngày tải lên :
14/08/2014, 20:20
... to mutations of genes involved in cell proliferation In this connection, it is interesting to note the size variations obtained in isogenic lines following treatment As each isogenic line presents ... conditions with a consequent increase in fitness In our case, the lower percentage of emerged flies in relation to egg number found in the line bred in the magnetic field is a clear indication ... returned to control environmental conditions after a few generations of exposure This variation is non-random since the change in always in the plus direction in all the treated lines Similar...
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A study of acoustic radiation force on fluid interface and suspended particles in micro fluidic devices
Ngày tải lên :
12/09/2015, 21:46
... position against time b y position against x position Figure 3.6 Simulation results of silicone oil droplets concentration in a single fluid Parameters used in simulation: compressibility of silicone ... radiation force can be used for particle separation in a single fluid flow 3.1 Theoretical model for particle separation in a single micro fluid In ultrasonic separation devices, a fluid containing ... polarization of the cellular particles induces DEP forces acting on the particles By Chapter manipulating the non-uniform electrical field, the DEP force acting on the cellular particles can be controlled...
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A study on fe induced structural, magnetic and transport properties in colossal magnetoresistive nd0 67sr0 33mno3 polycrystalline bulk and films 5 7
Ngày tải lên :
16/09/2015, 15:54
... The main contribution of Fe substitution at Mn sites is to increase the electron-electron, electron-magnon scattering effects, thus enhancing the magnetic disorder in the system The applied magnetic ... energy reflects the increase in polaron binding energy as Fe ions bind the polaron more strongly than Mn ions in the lattice We now turn to the resistivity coefficient A Our findings present a different ... weakened upon increasing Fe concentration, the magnetic characteristics due to lattice polaron decays, causing the increase of W p Thus with the doping of Fe ion, the increase of activation energy...
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A study on fe induced structural, magnetic and transport properties in colossal magnetoresistive nd0 67sr0 33mno3 polycrystalline bulk and films 4
Ngày tải lên :
16/09/2015, 15:54
... to interfacial diffusion across the grain boundaries during sample sintering, in addition to the contribution from non-parallel spin coupling Thus, the interfacial diffusion reaction has also induced ... realized by intergranular tunneling or temperature activated hopping When the metal concentration is increased above a certain threshold, individual grains form an infinite cluster with a continuous ... represented by combination of LSMO and NSMO It can be interpreted as having two phases of LSMO and NSMO coexisting in the composite Upon increasing the sintering temperature up to 1300 °C, the individual...
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A study on fe induced structural, magnetic and transport properties in colossal magnetoresistive nd0 67sr0 33mno3 polycrystalline bulk and films 3
Ngày tải lên :
16/09/2015, 15:54
... electronic configuration of the Fe ions is more complicated due to the possibility of the existence of the Fe ions in the low spin and high spin states The high spin Fe3+ ion has a configuration ... remaining eg electron itinerant Apart from that, Chul et al [99] have pointed out convincingly in the Mossbauer spectra (MS) of the Nd1-xCaxFeO3-y that Fe4+ exists as the HS configuration in the ... exists only as Fe3+ ion in the high spin state ( t g e g , S = ) in the compounds Fe3+ ions cause a strong antiferromagnetic interaction of Fe3+-O- Fe3+ and Mn3+- O- Fe3+ couplings based on MS...
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A study on fe induced structural, magnetic and transport properties in colossal magnetoresistive nd0 67sr0 33mno3 polycrystalline bulk and films 2
Ngày tải lên :
16/09/2015, 15:54
... Characterization Techniques Nd2O3 + MnO2 + SrCO3 Mixture and Stirring Target Wet Grinding Sintering Pressing Drying Powder Calcination Grinding YES Single Phase Figure - Flow chart for standard preparation ... collisions in the high-density plasma region near the target, resulting in a highly directional flow in front of the target surface and deposition on the substrate surface Thus a layer of thin film ... minimize or subtract the contributions from the outer components There may be little option in choosing the substrate as this has an important bearing on the sample preparation itself Its contribution...
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A study on fe induced structural, magnetic and transport properties in colossal magnetoresistive nd0 67sr0 33mno3 polycrystalline bulk and films 1
Ngày tải lên :
16/09/2015, 15:54
... electron-lattice interaction, ferromagnetic/antiferromagnetic superexchange interaction between local spins, intrasite and intersite Coulomb repulsion interactions among eg electrons, etc These interactions ... the intergrain spin-polarized tunneling Since the electron spin is conserved in the tunneling process, there is an additional magnetic coupling energy when the magnetic moments of the neighboring ... both intrinsic and extrinsic effects Effects intrinsic to a material are distinguished from extrinsic effects which depend on the direction of the magnetization in adjacent ferromagnetic regions...
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A study of the influence of electromagnetic fields on neurite outgrowth in PC12 rat pheochromocytoma cells
Ngày tải lên :
26/09/2015, 10:13
... the extrinsic EMF, therefore resulting in the alterations in the functions performed by these particles in the chemical reactions in living systems The models and biophysical interaction mechanisms ... lunar influences on ion currents in the upper atmosphere 1.2.3 Man-made origin of electromagnetic fields Static electromagnetic fields High-voltage, direct-current (DC) transmission lines are one ... low-frequency electromagnetic fields can result in an increased induction of mammary gland tumors in rats using nitrosomethyl urea The increased tumor incidence depended on the duration of exposure...
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Effects of the composition of suspended particles in water on the photosynthetically usable radiation and remote sensing reflectance
Ngày tải lên :
05/10/2015, 19:01
... walk in a straight line, in a circle, descend and ascend a slope and stairs Figure 2-7: Superpositioning of each socket reaction component over during level walking in a straight line for only one ... TRANSLATIONAL MALALIGNMENTS ON SOCKET KINETICS, (B) CORRESPONDING PROSTHETIC SIDE HIP JOINT ANGLES, (C) CORRESPONDING PROSTHETIC SIDE KNEE JOINT ANGLES AND (D) CORRESPONDING PROSTHETIC SIDE ANKLE JOINT ... PLANE INCLINOMETER CALIBRATION 73 FIGURE 3-43: INCLINOMETER SAGGITAL PLANE CALIBRATION RESULTS 73 FIGURE 3-44: CORONAL PLANE INCLINOMETER CALIBRATION 74 FIGURE 3-45: INCLINOMETER...
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EFFECT OF THE DIRECT EXCHANGE INTERACTION BETWEEN MAGNETIC IMPURITIES ON MAGNETIZA TION IN DILUTED MAGNETIC SEMICONDUCTORS
Ngày tải lên :
30/10/2015, 20:51
... magnetization of Ga1−x Mnx As obtained by Takahashi et al [11] In addition, since tanhx is an increasing function from Eq (13) it is easily seen that taking into account the antiferromagnetic interaction ... solving the equations (12) -(13), let us briefly consider limiting case In the absence of the direct exchange interaction between magnetic impurities, setting J = 0, ∆ = −0.4 and EM = −0.3 in ... suppression of the magnetization is sensitive to the antiferromagnetic coupling constant and the impurity concentration This result also implies that the superexchange interaction between d-electrons...
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CIRCULAR NO 2772016TT BTC DATED NOVEMBER 14, 2016, ON AMOUNTS, COLLECTION, PAYMENT, MANAGEMENT AND USE OF FEES IN THE FIELDS OF PHARMACY AND COSMETICS 277 2016 TT BTC 335308
Ngày tải lên :
24/02/2017, 21:14
... registration renewal Application 3.000 Assessment for marketing authorization with regard to application for registration of change of drugs, medicinal materials obtaining marketing authorization (minor ... Application 2.500 Application 450 Fee for consideration of list of bidders meeting Application requirements for qualification and credibility in bidding of herbal ingredients, traditional ingredients ... Regarding medicine-trading facilities in provinces and central-affiliated cities; midland provinces Facility 500 b Regarding medicine-trading facilities in mountainous, remote and isolated provinces...
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DSpace at VNU: Magnetoelectric sensor for microtesla magnetic-fields based on (Fe80Co20)(78)Si12B10 PZT laminates
Ngày tải lên :
16/12/2017, 00:03
... well as magnetic- field orientation sensing one To determine the strength of the dc magnetic- field, the sensor is simply used in the configuration of the dc magnetic- Fig Sensor construction: FeCoBSi/PZT ... provides direct conversion of ac magnetic- field into an electrical signal The sensor response is sensitive not only to the strength of magnetic- fields but also to their orientation Shown in Fig (left) ... in terms of the effective in- plane magnetic- field component Heff = Hsinϕ Indeed, the obtained VME (ϕ) data can be transferred into the plot of VME (Hsinϕ) and presented in Fig (right) Clearly, it...
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DSpace at VNU: Dependence of the Hall Coefficient on Doping Concentration in Doped Semiconductor Superlattices with a Perpendicular Magnetic Field under the Influence of a Laser Radiation
Ngày tải lên :
16/12/2017, 03:45
... and magnetic field (the magnetic field is applied along the DSSL axis), in the presence of a laser radiation (intense EMW) We only consider the case in which the electron-acoustic phonon interaction ... (n-i-p-i superlattice), in which electron gas is confined by an additional potential along the z direction and free in the (x-y) plane The motion of an electron is confined in each layer of the ... respectively), utilizing the same procedures as in Ref 11 Then by considering the electron - acoustic phonon interaction, we obtain the expression for the conductivity tensor after some manipulation: σim...
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DSpace at VNU: The effect of Zn, Ag and Au substitution for Cu in Finemet on the crystallization and magnetic properties
Ngày tải lên :
16/12/2017, 10:04
... phase With further increasing temperature, the ribbon is in the superparamagnetic up to the region starting to crystallize the a-Fe(Si) phase which makes increasing magnetization, then M decreases ... shape like in the case of Finemet compound that indicated the main phases in Finemet of Cu and Au are a-Fe(Si), remaining amorphous phase and the clusters of Cu or Au located at grain boundary ... speed was strongly crystallized because there is only a small exothermal peak occurring at 728 1C (Fig 1a) relating to weak crystallization of remaining boride phase whereas this composition prepared...
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DSpace at VNU: Magnetic study of nanocrystalline iron particles in alumina matrix
Ngày tải lên :
16/12/2017, 13:10
... Langevin ‘‘curvature’’ generally observed for systems containing noninteracting particles It indicates probably the existence of a strong dipolar interaction between iron grains in the samples Indeed, ... increase of the relative fraction of BCC-Fe phase is associated with the increase of the Fe-grain size as well as of the Feconcentration in the grains with increasing annealing temperature, indicating ... Mossbauer fraction starts to increase, while the corresponding paramagnetic contribution decreases This process takes place strongly in the sample annealed at TA ¼ 300 C and then is slowing down at...
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