55 results about "Transverse field" patented technology

The invention relates to a micro-device for generating a multi-polar transverse field, or a micro-device for the filtration or the deflection or the focusing of charged particles, comprising n longitudinal conductive micro-beams (32, 34, 36, 38), of polygonal cross section, and arranged around a longitudinal axis (AA').

A method and system are disclosed for improving a policy for a stochastic control problem, the stochastic control problem being characterized by a set of actions, a set of states, a reward structure as a function of states and actions, and a plurality of decision epochs, the method comprising using a sampling device obtaining data representative of sample configurations of a Boltzmann machine, obtaining initialization data and an initial policy for the stochastic control problem; assigning data representative of an initial weight and a bias of respectively each coupler and each node and the transverse field strength of the Boltzmann machine to the sampling device; until a stopping criterion is met generating a present-epoch state-action pair, amending data representative of none or at least one coupler and at least one bias, performing a sampling corresponding to the present-epoch state-action pair to obtain first sampling empirical means, obtaining an approximation of a value of a Q-function at the present-epoch state-action, obtaining a future-epoch state-action pair, wherein the state is obtained through a stochastic state process, and further wherein the obtaining of the action comprises performing a stochastic optimization test on the plurality of all state-action pairs comprising the future-epoch state and any possible action to thereby provide the action at the future-epoch and update the policy for the future-epoch state; amending data representative of none or at least one coupler and at least one bias, performing a sampling corresponding to the future-epoch state-action pair, obtaining an approximation of a value of the Q-function at the future-epoch state-action, updating each weight and each bias and providing the policy when the stopping criterion is met.

A computed tomography acquisition method, an imaging system, a computer readable medium provides laterally displacing a radiation detector (204) from a position with centered detector geometry with a centered transverse field of view to a first offset position (212); emitting first radiation by the radiation source (202), detecting the first radiation by the radiation detector (204) and acquiring projection data indicative of the first radiation; rotating the support around the rotational axis (214) by 180°; emitting second radiation by the radiation source (202), detecting the second radiation by the radiation detector (204) and acquiring projection data indicative of the second radiation; displacing the radiation detector (204) from the first offset position to a second offset position (226), with opposite direction and double length of the first displacement (a); emitting third radiation by the radiation source (202), detecting the third radiation by the radiation detector (204) and acquiring projection data indicative of the third radiation; rotating the support around the rotational axis (214) by 180°; and emitting fourth radiation by the radiation source (202), detecting the fourth radiation by the radiation detector (204) and acquiring projection data indicative of the fourth radiation.

The invention discloses a multi-component seismic data migration imaging method and system. The migration imaging method comprises the following steps: acquiring observation multi-component seismic records; acquiring observation system parameters, longitudinal wave migration speed, transverse wave migration speed, a migration density model and migration parameters of a seismic work area; acquiringa multi-component centrum wave field and a multi-component detection point wave field which correspond to every cannon-shot; carrying out longitudinal and transverse field separation on the multi-component centrum wave fields and the multi-component detection point wave fields; acquiring a gradient profile by using a gradient calculating formula; constructing a declining direction profile corresponding to every cannon-shot; acquiring a multi-component demigration simulated wave field corresponding to every cannon-shot; acquiring multi-component seismic record increment; determining an optimized step length according to the multi-component seismic record increment and the declining direction profile; and determining a migration profile according to the optimized step length and the declining direction profile corresponding to every cannon-shot. By the method or system, a migration profile which can directly reflect PP, PS, SP and SS reflecting coefficient information of an undergroundmedium can be obtained.

A radial leak coaxial cable includes a center conductor (1) extending along center axis of the cable toward the longitudinal direction, a spume insulation layer (2), a radiation external conductor (3) and a protective cover (4) from inside to outside in sequence, the spume insulation layer (2) separates the center conductor (1) with the radiation external conductor (3), the radiation external conductor (3) has radiation slots that are circular arc slots (5) arranged alternately in positive and negative, and adjacent circular arc slots (5) have openings with opposite directions. The invention provided adjacent 'coupling mouth' reverse configuration can reduce vertical polarized longitudinal field of to minimum and can eliminate reversion of vertical polarized transverse field caused by inter-reflection of the vertical polarized longitudinal field, which resolves affects to transmission signal stability and homogeneity caused by mutual interference of primary vertical polarized transverse fields.

A method for estimating a thermodynamic property of a quantum Ising model with transverse field is disclosed. The method comprises obtaining an indication of a thermodynamic property to approximate for the quantum Ising model with transverse field; obtaining data representative of the quantum Ising model with transverse field; setting the quantum Ising model with transverse field using the obtained data representative of the quantum Ising model with transverse field on a quantum Ising model sampling device, the quantum Ising model sampling device being operatively coupled to a processing device and to a quantum Ising model sampling device control system; performing a plurality of measurements of the quantum Ising model with transverse field in a measurement axis using the quantum Ising model sampling device, each measurement providing a corresponding measured configuration; generating an effective classical Ising model corresponding to the quantum Ising model with transverse field; generating a plurality of effective configurations of the effective classical Ising model, each effective configuration comprising a set of more than one of the measured configurations; generating an approximation of the thermodynamic property of the effective classical Ising model using the generated plurality of effective configurations of the effective classical Ising model to approximate the thermodynamic property of the quantum Ising model with transverse field; and providing the approximation of the thermodynamic property.

An apparatus basically uses a simple and compact multi-axis magnetic lens to focus each of a plurality of charged particle beams on sample surface at the same time. In each sub-lens module of the multi-axis magnetic lens, two magnetic rings are respectively inserted into upper and lower holes with non-magnetic radial gap. Each gap size is small enough to keep a sufficient magnetic coupling and large enough to get a sufficient axial symmetry of magnetic scale potential distribution in the space near to its optical axis. This method eliminates the non-axisymmetric transverse field in each sub-lens and the round lens field difference among all sub-lenses at the same time; both exist inherently in a conventional multi-axis magnetic lens. In the apparatus, some additional magnetic shielding measures such as magnetic shielding tubes, plates and house are used to eliminate the non-axisymmetric transverse field on the charged particle path from each charged particle source to the entrance of each sub-lens and from the exit of each sub-lens to the sample surface.

A liquid crystal display with horizontal electric field consists of liquid crystal layer set between the first and the second base plates, a numbers of grid lines and data lines on the first base plate for forming a pixel region, pixel electrode on the first base plate in said pixel region, a face-opposite electrode on the second base plate in position corresponding to one of data lines, a pair of protection electrode on the first base plate as one data line set between this pair and a share electrode with two units being separately set near to pixel electrode and set in corresponding to one of data lines.

The invention discloses a frequency-adjustable transverse field excitation film bulk acoustic resonator and a preparation method thereof. The frequency-adjustable transverse field excitation film bulkacoustic resonator sequentially comprises electrode aluminum, a piezoelectric substrate lithium tantalate, temperature compensation layer silicon dioxide and substrate silicon from top to bottom, wherein the substrate is provided with a cavity, the cavity is communicated with a release through hole penetrating through the temperature compensation layer and the piezoelectric substrate, and the piezoelectric substrate is made of a single crystal material. Under the condition that the thickness of the piezoelectric substrate is not changed, the center frequency of the resonator changes along with the change of the excitation direction of the electrode pair.

The present invention relates to a parameter inversion method of a probability integral method based on a quantum annealing method. The method comprises: giving an initial value B0 of a parameter of the probability integral, and determining a temperature and transverse field variation function, a fluctuation range +/-[delta]B of each parameter of the probability integral, the maximum allowable step length scale of the parameter, and the number of times M of internal loops; by calculating the objective function under the gradually decreased temperature and transverse field, determining an optimal parameter solution at each temperature; and finally outputting the optimal parameter solution by determining the accuracy requirement or whether the minimum temperature and the transverse field arereached. According to the method disclosed by the present invention, based on inheriting the advantages of the simulated annealing method, the thermal fluctuation mechanism of the simulated annealingmethod is replaced by the quantum fluctuation mechanism, so that the shortcomings of the simulated annealing algorithm are effectively overcome; and compared with the parameter inversion method of the probability integral based on the simulated annealing, by using the method disclosed by the present invention, the convergence speed and the possibility of jumping out of the local optimal solutionare effectively improved, the global optimization ability is enhanced, and the parameter inversion of the probability integral can be more accurate and reliable.

A computing apparatus that does not need quantum coherence or a cryogenic cooling apparatus is provided for assignments that need an exhaustive search.

A system is led to the ground state of the system where a problem is set, wherein spin s_j^z that is a variable follows a local effective magnetic field B_j^z. The spin state at t=0 is initialized with a transverse field (in the x-direction). This corresponds to s_j^z=0. With time t, the magnetic field in the z-axis direction and the inter-spin interactions are gradually added, and finally the spin is directed to the +z- or −z-direction. The z component of the spin s_j is s_j^z=+1 or −1. Here, in the process where the orientation of the spin s_j^z follows that of the effective magnetic field B_j^z, correction parameters originating in quantum-mechanical effects are introduced and ground-state-maintaining performance is improved.

The invention relates to an isolated gate controlled transverse field emission transistor and a driving method thereof. The transistor comprises a first gate dielectric layer, a first gate electrode, a collector electrode and an emitter electrode, wherein the first gate dielectric layer is provided with a first surface and a second surface which are opposite to each other; the first gate electrode is arranged on a first surface of the first gate dielectric layer; the collector electrode and the emitter electrode are arranged on a second surface of the first gate dielectric layer and at both sides of the first gate electrode; and the collector electrode and the emitter electrode are insulated from each other, and a gas is formed between the collector electrode and the emitter electrode. According to the invention, electric conduction is realized through a field emission current from the emitter electrode to the collector electrode in the field effect transistor, and a current switch of transverse field emission from the emitter electrode to the collector electrode is controlled by the first gate electrode at the same time, so that limitation in carrier transport by a lattice structure of a channel region in a conventional MOS ( field effect transistor) is eliminated, the need of process development can be met, and the transistor has a higher response speed.

Uniformity of plasma density is enhanced at high plasma density and with reduced gas cracking and/or without electron charging of a workpiece by limiting coupling of voltages to the plasma and returning a majority of RF current to elements of an antenna driven with different phases of a VHF/UHF signal and/or providing a magnetic filter which separates a hot plasma region from a cold plasma region along a side of the chamber and further provides a preferential drift path between the hot and cold plasma regions. The magnetic field structure of the magnetic filter is preferably closed at one end or fully closed to surround the plasma. Additional magnetic elements limit the transverse field at the surface of a workpiece to less than 10 Gauss. Either or both of the antenna and the magnetic filter can be retrofitted to existing plasma reactor vessels and improve the performance and throughput thereof.

Described is a lateral field emission device emitting electrons in parallel with respect to a substrate. Electron emission materials having a predetermined thickness are arranged in a direction with respect to the substrate on a supporting portion. An anode is disposed on a side portion of the substrate, the anode corresponding to the electron emission materials.

Uniformity of plasma density is enhanced at high plasma density and with reduced gas cracking and/or without electron charging of a workpiece by limiting coupling of voltages to the plasma and returning a majority of RF current to elements of an antenna driven with different phases of a VHF/UHF signal and/or providing a magnetic filter which separates a hot plasma region from a cold plasma region along a side of the chamber and further provides a preferential drift path between the hot and cold plasma regions. The magnetic field structure of the magnetic filter is preferably closed at one end or fully closed to surround the plasma. Additional magnetic elements limit the transverse field at the surface of a workpiece to less than 10 Gauss. Either or both of the antenna and the magnetic filter can be retrofitted to existing plasma reactor vessels and improve the performance and throughput thereof.