78 results about "Energy modulation" patented technology

A method and a system for producing a change in a medium disposed in an artificial container. The method places in a vicinity of the medium at least one of a plasmonics agent and an energy modulation agent. The method applies an initiation energy through the artificial container to the medium. The initiation energy interacts with the plasmonics agent or the energy modulation agent to directly or indirectly produce the change in the medium. The system includes an initiation energy source configured to apply an initiation energy to the medium to activate the plasmonics agent or the energy modulation agent.

Products, compositions, systems, and methods for modifying a target structure which mediates or is associated with a biological activity, including treatment of conditions, disorders, or diseases mediated by or associated with a target structure, such as a virus, cell, subcellular structure or extracellular structure. The methods may be performed in situ in a non-invasive manner by application of an initiation energy to a subject thus producing an effect on or change to the target structure directly or via a modulation agent. The methods may further be performed by application of an initiation energy to a subject in situ to activate a pharmaceutical agent directly or via an energy modulation agent, optionally in the presence of one or more plasmonics active agents, thus producing an effect on or change to the target structure. Kits containing products or compositions formulated or configured and systems for use in practicing these methods.

A method and a system for producing a change in a medium. The method places in a vicinity of the medium an energy modulation agent. The method applies an initiation energy to the medium. The initiation energy interacts with the energy modulation agent to directly or indirectly produce the change in the medium. The energy modulation agent has a normal predominant emission of radiation in a first wavelength range outside of a second wavelength range (WR2) known to produce the change, but under exposure to the applied initiation energy produces the change. The system includes an initiation energy source configured to apply an initiation energy to the medium to activate the energy modulation agent.

The invention discloses a generalized regression neural network based non-reference stereoscopic image quality evaluation method. The method includes obtaining a binocular energy image of a left view point and a right view point according to amplitude images and phase images of a left view point image and a right view point image of a to-be-evaluated distortion stereoscopic image and a parallax image between the left view point image and the right view point image, and further obtaining a normalized histogram statistic feature vector subjected to binocular energy modulation; obtaining the feature vector in the same way as for each distortion stereoscopic image in a training set, training subjective scoring and feature vectors of all the distortion stereoscopic images in the training set, obtaining a generalized regression neural network training model, and finally testing the normalized histogram statistic feature vector subjected to binocular energy modulation of the to-be-evaluated distortion stereoscopic image and obtaining a subjective quality evaluation predication value. The method has an advantage of fully considering the stereoscopic vision perception characteristics, so that the relevance between an objective evaluation result and subjective perception can be improved effectively.

The invention provides a flash laser radar echo signal physical image simulation system and method. The device used by the method comprises an emulation computer, a coarse control delayer, a laser, acoupling optical fiber, a beam splitter, an energy modulation module, a fine control delay module, a laser radar target point source generation computer, an image conversion module, an image recombiner and an optical projection module. The part of different simulation accuracy of the echo signal is separated, i.e. the distance of the laser radar and the target is simulated by the coarse control delay, and the detail presentation of the target in the distance dimension is simulated by the fine control delay. Each slice is two-dimensional and represents the echo image of the target under the distance. The MxN channel number matched with the image element number required by the conventional space domain is reduced to K channels of the time domain. High resolution and high integration can be met by using the micro-optical device in space and the structure is more compact.

The invention relates to the technical field of miniature single-phase photovoltaic grid-connected inverters, and particularly discloses a single-phase grid-connected inverter with an active power decoupling function, and a power decoupling control method of the single-phase grid-connected inverter. The inverter comprises a buck-boost converter, a single-phase two-bridge-arm inversion circuit, an alternating-current low-pass output filter circuit and an active power decoupling circuit, wherein the active power decoupling circuit is embedded into the single-phase two-bridge-arm inversion circuit to form a three-bridge-arm inversion circuit; a direct-current input source of the inverter is connected with an input end of the buck-boost converter; an input filter capacitor is connected in parallel between the direct-current input source of the inverter and the input end of the buck-boost converter; an output end of the buck-boost converter is connected with an input end of the three-bridge-arm inversion circuit; an output end of the three-bridge-arm inversion circuit is connected with an input end of the alternating-current low-pass output filter circuit; and power decoupling control is performed by a pulse width energy modulation method. The inverter can use a non-electrolytic capacitor as a decoupling capacitor and avoids an electrolytic capacitor, so that the fault interval time of the inverter is prolonged, and the reliability of a system is improved.

The invention belongs to the field of spectrums, particularly relates to a method for calculating spectral characteristics of a binary laminated optical material, and in particular relates to a method for calculating reflectivity and transmissivity spectrums of a ZnS/ZnSe laminated infrared optical material. A transmission/reflection spectrum of an optical wave after passing through the binary laminated material is obtained by building a physical model of light transmitted in the axial direction of the laminated material and an optical noncoherent transmission theory; and a physical relationship between the basic physical properties and physical thicknesses of ZnS and ZnSe and transmission/reflection spectral characteristics is built. The method has universality on spectral calculation of the binary laminated material, and a theoretical basis is provided for optical wave energy modulation characteristics of the binary laminated material.

The invention relates to a device for determining the control parameters for an irradiation unit, by means of which a number of radiation doses are serially administered to differing target points in a target volume. The device comprises an input device, for recording a target region and the movement of the target region and analytical unit for determining control parameters to control a beam such that, by means of the control parameters a beam may follow the movement for the target region and administer a defined dose distribution to the target region, wherein the analytical unit is designed that on determining the control parameters at least one first selectable control parameter is determined such that the beam only follows the movement for the target region orthogonal to the beam direction or on determining the control parameters at least one first selectable control parameter and a further control parameter representing an energy modulation for the beam are determined, wherein the determination for the at last one first control parameter and the further control parameter occurs taking into account the movement following in the beam direction.

The invention discloses a proton beam flow intensity modulation method and system. In a proton therapy device based on a cyclotron, an energy selection module makes the transmission efficiency of the proton beam with different energies very different, but a treatment end requires the proton beam to maintain a stable flow intensity range. The method of the invention firstly obtains the beam loss and the transmission efficiency of the proton beam with different energies in an energy reduction process after the energy modulation of the proton beam, and obtains a flow intensity ratio from low energy to high energy. According to the clinical requirements of the proton beam flow intensity dynamic ratio, after different energy points which have been subjected to energy modulation undergo expansion and collimation, the flow intensity modulation within a design proportional region is completed and the flow ratio can be controlled within a certain value. The method and the system of the invention are based on the Monte Carlo calculation method and the beam optics. The design method is reliable, and the realization scheme has a small space requirement, which is important for maintaining the beam stability in the proton therapy process.

The invention discloses an air conditioner and a method and a device for controlling the starting of a compressor of the air conditioner. The method for controlling the starting of the compressor of the air conditioner comprises the following steps of controlling the first compressor of a plurality of compressors of the air conditioner to start; starting timing when the first compressor is started, and obtaining the timing period; when the timing period reaches the preset time interval, obtaining the output power of the air conditioner; comparing the output power and the demand power of the air conditioner; when the output power is lower than the demand power, controlling the second compressor to start, wherein the second compressor is one of the multiple compressors and different from the first compressor. The method has the advantages that the problem of overlong starting time interval of the compressor in the prior art is solved, and the effects of shortening the starting time interval of the air conditioner and improving the energy modulation efficiency of the air conditioner are realized.

The present invention relates to a photo-acoustic tomography that can acquire a functional image for an inner part of a living body through generation of a local ultrasonic wave generated by energy that is introduced from a laser light source, and to a photo-acoustic tomography using a semiconductor laser and an optical fiber power amplifying device in order to increase resolution and an image acquisition time of an image, a photo-acoustic tomography that can acquire a high-sensitive image even in a place where a penetration depth is large through energy modulation, and a high-sensitive high-speed photo-acoustic tomography that can acquire a high-speed image by placing an array-type laser light source.

Methods, systems, and devices for providing a denervating energy treatment to the tissue of the pulmonary vein and antrum region of the left atrium utilizing a catheter-based structure having one or more energy delivery surfaces. In some instances energy delivery surfaces are arranged with a circumferential and axial offset relative to one another. A pattern of individual lesions loosely approximating a helix, or other staggered pattern, or roughly circumferential are placed so as to provide a pattern which covers substantially the circumference of the treated area while avoiding stenosis. Denervating energy is applied by modulation of the energy delivery surfaces using an energy source integrated with a controller and control algorithm. In some instances feedback is used in a control algorithm for energy modulation. Energy sources are radiofrequency, ultrasound, and cryogenic.

In a laser produced plasma (LPP) extreme ultraviolet (EUV) system, a droplet is irradiated by a laser pulse to produce a plasma in a chamber. This generates forces that cause the plasma to destabilize and subsequent droplets to have their flight trajectory and speed altered as they approach the plasma. This destabilization is detectable from oscillations in the amount of EUV energy generated. To reduce the oscillations by stabilizing the plasma and travel of the droplets, a proportional-integral (PI) controller algorithm is used to modify an energy of subsequent laser pulses based on the EUV energy generated in the chamber. By modifying the energy of subsequent laser pulses, the plasma stabilizes, which reduces effects on droplet flight and stabilizes the amount of EUV energy generated, allowing the plasma chamber to operate for longer intervals and to lower the amount of reserve power maintained by a laser source.

The invention relates to an energy modulation device for particle treatment and a using method of the energy modulation device. The energy modulation device comprises a horizontal moving motor, a horizontal moving support mechanism, a modulator support mechanism, a rotary motor, a fan-shaped energy modulator disc. The horizontal moving motor is installed on one side of the horizontal moving support mechanism and is capable of driving the horizontal moving support mechanism to horizontally move. The fan-shaped energy modulator and the rotary fan are respectively arranged on upper and lower sides of the modulator support mechanism. The rotary motor is capable of driving the fan-shaped energy modulator to rotate. According to the invention, by use of fan-shaped object block with a curve fan which is uniformly changed in the radial and axial directions, Bragg peak extension in different widths of particle beams is achieved; by only using one device, and defects for requirement of multiple modulators are avoided without frequently changing modulators with different widths, so treatment procedures are simplified, treatment time is shortened and manufacturing cost is reduced.

The invention provides a cross-protocol communication method and system from a WiFi device to a ZigBee device. The method comprises the steps that a WiFi sending end generates the to-be-sent symbol-level energy modulation bit information bearing the WiFi data bits and the cross-protocol data bits transmitted to the ZigBee device simultaneously, wherein the cross-protocol bits are obtained based onthe symbol-level energy modulation; a ZigBee receiving end processes the received signal strength indication sample information and starts a cross-protocol communication receiving process to obtain the cross-protocol data bits needing to be received; and meanwhile, the WiFi receiving end obtains the symbol-level energy modulation bit information through a standard WiFi receiving process, and thenstarts a WiFi data recovery process to obtain the original WiFi data bits. According to the method and the system provided by the invention, the cross-protocol communication is realized through the code element level energy modulation, and the method and the system can be compatible with an existing commercial network at the aspects of a used channel, a physical layer and an MAC layer.

The invention discloses a large-scale random access method based on energy modulation. The method comprises the following steps: S1, constructing a random access model based on energy modulation; S2, estimating a joint signal of user information and a channel by using a message passing algorithm; S3, detecting emission information and an active state of each user by using an algorithm based on a maximized posterior probability; and S4, designing an optimal constellation point codebook. According to the large-scale random access scheme provided by the invention, the approximate optimal constellation point is obtained, the bit error rate is effectively reduced, and the communication performance is improved.

A hadron therapy system that provides 3D scanning and rapid delivery of a high dose. Such systems can include a hadron source and accelerator with an RF energy modulator and an RF deflector that operate in combination to provide 3D scanning of a targeted tissue. The systems can include a permanent magnet quadrupole for magnification of the beam. The systems can include high energy hadron sources that utilize a multi-cell, multi-klystron design that achieves scanning of high energy hadron beams, for example a fixed energy of 200 MeV protons. Such systems can provide full irradiation of a liter scale tumor within one second or less.

The invention discloses a dose delivery system for a laser accelerated proton cancer treatment device. A quadrupole magnet focuses and restrains a proton beam generated by a laser plasma accelerator to form a centimeter-level wide beam, a scatterer turntable loaded with proton beams matched with different energies rotates to a corresponding gear (including a neutral gear and a beam blocking gear), and after the proton beams are scattered and transversely expanded, active wide proton beam superposition is implemented by a scanning dipolar magnet. A control module can realize energy modulation in the longitudinal direction by selecting proton beams with different energies and energy scattering in a determined proportion. According to the system, a scheme of combining scatterer beam expansion with wide proton beam superposition is adopted, insufficient radiation field uniformity caused by an overlarge emission angle of a proton beam driven by laser is avoided, scattering of the beam in a dose delivery process is reduced to the greatest extent by utilizing a longitudinal lamination method of actively selecting proton beams with different energies, the utilization rate of large energy scattering and large scattering angle proton beams generated by laser acceleration is improved.