90results about How to "Speed up divergence" patented technology

An illumination system includes a plurality of radiation generating sources, such as LED dies. A corresponding plurality of optical waveguides is also provided, with each waveguide having a first and a second end, with each first end being in optical communication with the corresponding LED die. An array of corresponding passive optical elements is interposed between the plurality of LED dies and the corresponding first ends of the plurality of optical waveguides. The illumination system provides for substantially high light coupling efficiency and an incoherent light output that can appear to the human observer as arising from a single point of light. In addition, the light can be output remotely at one or more locations and in one or more directions.

A TIR collimator for an LED light source includes a body portion having a reflective surface, wherein the reflective surface includes a plurality of segments. Respective segments of the reflective surface have corresponding cross-sectional profiles defined by different low-order polynomial functions, such that the overall cross-sectional profile of the reflective surface constitutes a spline, i.e., a piecewise polynomial function. The respective segments are configured to achieve substantial collimation of the output light. In one example, the cross-sectional profiles of adjacent segments of the reflective surface are defined by different low-order polynomials. Additionally, two or more adjacent segments may have respective cross-sectional profiles which together are defined by a Bezier curve, so as to provide smooth transitions between adjacent segments of the spline reflective surface.

The present invention provides long life optics for a modular, high repetition rate, ultraviolet gas discharge laser systems producing a high repetition rate high power output beam. The invention includes solutions to a surface damage problem discovered by Applicants on CaF2 optics located in high pulse intensity sections of the output beam of prototype laser systems. Embodiments include an enclosed and purged beam path with beam pointing control for beam delivery of billions of output laser pulses. Optical components and modules described herein are capable of controlling ultraviolet laser output pulses with wavelength less than 200 nm with average output pulse intensities greater than 1.75×106 Watts / cm2 and with peak intensity or greater 3.5×106 Watts / cm2 for many billions of pulses as compared to prior art components and modules which failed after only a few minutes in these pulse intensities. Techniques and components are disclosed for minimizing the potential for optical damage and for reducing the pulse energy density to less than 100×10−6 J / cm3. Important improvements described in this specification have been grouped into the following subject matter categories: (1) Solution to CaF2 surface damage discovered by Applicants, (2) description of a high power ArF MOPA laser system, (3) description of beam delivery units, (4) polarization considerations (5) a high speed water-cooled auto shutter energy detector module and (6) other improvements.

A computational method for identifying adhesin and adhesin-like proteins, said method comprising steps of computing the sequence-based attributes of a neural network software wherein the attributes are (i) amino acid frequencies, (ii) multiplet frequency, (iii) dipeptide frequencies, (iv),charge composition, and (v) hydrophobic composition, training the artificial neural Network (ANN) for each of the computed five attributes, and identifying the adhesin and adhesin-like proteins having probability of being an adhesin (Pad) as ≧0.51; a computer system for performing the method; and genes and proteins encoding adhesin and adhesin-like proteins.

In a laser system for laser crystallization of semiconductor films, a laser source produces a laser beam that is transmitted to a lens system having a plurality of lens elements adapted to divide the beam into a plurality of beamlets. At least one of the beamlets is inverted relative to the others, such that a desired intensity profile is generated at the output of the laser system.

A homogenizer for collimated light limits the angular distribution of the light by passing the light through a mild diffuser followed by a slab light guide which has top and bottom surfaces covered with optical constraining layers and optical absorbing layers where the optical absorbing layer has a higher refractive index than the optical constraining layer and the optical constraining layer has a lower refractive index than the slab light guide.

An improved monoblock laser cavity is made by applying circular apodizing coatings to the various components of the monoblock laser. The apodization of the laser cavity faces improves the beam divergence of the laser and thus, increases brightness, by encouraging only the lower order modes to lase.

The invention discloses an LED lamp which is composed of a radiator cover and a diffuser cover, wherein, the radiator cover is internally provided with a chucking slot used for fixing a bar-shaped LED lamp strip which is composed of a PCB plate or an MCPCB plate and an LED welded on the PCB plate or the MCPCB plate, and one end of the bar-shaped LED lamp strip is welded with a bridge-shaped rectifier module used for rectifying the current provided by an electronic rectifier in a fluorescent lamp stand. The LED lamp can directly replace a fluorescent lamp without changing other components in the existing fluorescent lamp disc, is superior to the fluorescent lamp in the service life and the stability, and does not produce any environmental pollution.

The invention discloses an inertia vibration exciter based on a Halbach permanent magnet array and a design method thereof. The inertia vibration exciter comprises a shell, the shell is internally provided with a movable magnet part, a fixed winding part, a suspension part and a gravity compensation part, the movable magnet part comprises a Halbach permanent magnet array and pure iron positioned at the upper part and the lower part of the Halbach permanent magnet array, the fixed winding part comprises a coil, the suspension part comprises a plurality of curled springs connected between the pure iron and the shell, the gravity compensation part comprises a support spring, the fixed winding part is connected to an object to be subjected to vibration excitation, after alternating current isconnected into the coil, under the action of Lorentz force, the movable magnet part vibrates relative to the fixed winding part, and the amplitude and the frequency of vibration can be changed by adjusting the magnitude and the direction of the current. According to the inertia vibration exciter and the design method thereof, a magnetic circuit of the vibration exciter is designed by utilizing theHalbach permanent magnet array and is used for improving the magnetic induction intensity of the vibration exciter, and compared with a traditional magnetic circuit with the same volume, the magneticcircuit has the advantage that the magnetic induction intensity generated by the magnetic circuit can be improved by about 50%.

A laser light projector includes a laser beam generated by a laser light source, a scanner associated with the laser light source and having one or more moving mirrors capable of scanning the laser beam along X-Y coordinates, a scan-fail monitor and a safety-lens. The safety-lens includes at least one optical power, and is positioned and arranged for increasing the safety of the projected light within audience areas by increasing beam divergence in the audience, while keeping beam divergence low above the heads of the audience, thus allowing mirror targeting to occur.

The present invention discloses a seismic omnidirectional vector detector which comprises eight detectors and a support structure for supporting the eight detectors, thus the bottom surfaces of each two detectors are on one equilateral triangle surface of one regular tetrahedron, and the intersection points of the working shafts of two detectors on the same equilateral triangle surface and the equilateral triangle surface are on the angular bisector of one angle of the equilateral triangle surface and are symmetrical by the center of the equilateral triangle surface. According to the divergence and vorticity equations of the field theory, a specific space motion full vector detection structure is designed, the full information detection of the frequency of a seismic wave field, amplitude, phase, vibration direction and especially the divergence and vorticity of a wave power field is realized, and a new seismic omnidirectional vector detector structure is formed.

The invention relates to an automobile wheel brake drum (15) including a cylindrical braking track coupled with a circular wall perpendicular to the rotational axis of the drum, one of the surfaces of said wall including so-called facial ribs (21) distributed about said rotational axis.

A novel efficient energy-saving cylinder fixation machine comprises a cylinder body. An inlet of the cylinder body is provided with a front roll ring; an outlet of the cylinder body is provided with a back ring rolling; the front rolling ring and the back ring rolling are respectively rotatablely connected with a casing of the fixation machine; a heating device is installed outside the cylinder body; the inner wall of the cylinder body is equipped with front guide-leaf plates and rear guide-leaf plates; the front guide-leaf plates and the rear guide-leaf plates are in spiral structure; the front guide-leaf plates are near to the front rolling ring; the rear guide-leaf plates are near to the rear rolling ring; and the number of the front guide-leaf plates is larger than that of the rear guide-leaf plates. The fixation machine provided by the invention has advantages of uniform fixation, high dehydration and high energy efficiency ratio; and the prepared tea gains strong aroma.

The embodiment of the invention discloses a method for improving commodity recommendation diversity, and solves the problem that recommended commodities are lack of diversity. The method comprise: obtaining similar users by utilizing a Canopy algorithm and a K-means algorithm according to user data; according to the total order data, constructing a knowledge graph, and obtaining an SPU associatedwith the real-time interest of the user; and obtaining a commodity recommendation list according to the similar users and the SPUs associated with the real-time interests of the users.

The invention relates to an electrically operable holding brake system (10) for a pneumatic braking installation, having a control valve device (12) which comprises a first control valve input connection (14), a second control valve input connection (16) and a control valve output connection (18), a supply valve (74) coupled to the first control valve input connection (14), and a control and vent valve device (102) coupled to the second control valve input connection (16). According to the invention, the control valve output connection (18) is coupled directly to a first shuttle valve input connection (40) of a shuttle valve (38), and a shuttle valve output connection (44) of the shuttle valve (38) is coupled to a relay control input (112) of a relay valve (108). The invention also relates to a method for operating an electrically operable holding brake system (10).

The present invention relates to the technical field of medical auxiliary equipment, and particularly relates to a multifunctional neurosurgical head fixer. The fixer comprises a bottom plate and a clamping block, wherein the two ends of the lower surface of the bottom plate are provided with connecting clamping strips; the upper surface of the bottom plate is provided with two strip-shaped sliding grooves; the two strip-shaped sliding grooves are located on a same straight line; a through hole is formed between the two strip-shaped sliding grooves; the through hole is internally provided witha bidirectional screw; the inner end of the bidirectional screw is rotationally connected with the end part of the strip-shaped sliding groove in the inner side; and the outer end of the bidirectional screw penetrates out of the front side surface of the bottom plate. The fixer has two adjusting modes and can effectively avoid the problem of head and neck sour pain caused by long-time fixation ofan existing head fixer.

The invention discloses an LED mining lamp, and belongs to the technical field of LED lamp manufacturing. The LED mining lamp comprises a lamp holder arranged on a housing and an LED light source plate arranged on a substrate, wherein a motor is arranged in the housing through a mounting plate; the output shaft of the motor extends to a position below the mounting plate; the shaft end of the output end is provided with a small fan; the mounting plate is provided with a radiator on the lower bottom surface; and the radiator is provided with the substrate on the bottom. Compared with the prior art, the LED mining lamp can be used for solving the problem that the heat dissipation effect of the LED mining lamp is poor.

A method for controlling beam quality degradation from ISR and CSR and stabilizing the microbunching instability (μBI) in a high brightness electron beam. The method includes providing a super-periodic second order achromat line with each super period being individually linearly achromatic and isochronous, setting individual superperiod tunes to rational fractions of an integer (such as 4th or 6th integers), setting individual bend angles to be as small as practical to reduce driving terms due to dispersion and dispersive angle, and setting bend radii as large enough to suppress ISR but not negatively affect the radial dependence of CSR. The method includes setting the structure of the individual superperiods to minimize bend plane beam envelope values in the dipoles to reduce betatron response to a CSR event at a dispersed location, increasing beam angular divergence, and creating dispersion nodes in the dipoles to similarly reduce response to CSR events, and limit R56 modulation in order to mitigate μBI.

The invention relates to a cedar medicine pillow which comprises a wooden pillow and a medicine accommodating cavity in the wooden pillow, wherein a plurality of through holes communicated with the medicine accommodating cavity are formed in the upper surface of the wooden pillow; a miniature fan and a batter are mounted on one side of the medicine accommodating cavity. Traditional Chinese medicine of the medicine accommodating cavity comprises, by weight, 20-30 parts of atractylodes macrocephala, 15-20 parts of radix sileris, 5-10 parts of aconite, 10-15 parts of monkshood, 20-25 parts of subprostrate sophora, 20-22 parts of lycopodium clavatum, 10-15 parts of radix clematidis, 5-8 parts of mint and 20-25 parts of caulis spatholobi. The cedar medicine pillow has the functions of inflammation diminishing and sterilization, calming and pain relieving, tendon relaxing and collateral activating as well as wind expelling and cold removing and a certain physiotherapy effect on cervical spondylosis.

An improved monoblock laser cavity is made by elongating the Optical parametric oscillation (OPO) cavity. This can be accomplished by changing the coatings on the OPO material and Q-switch and by elongating the OPO cavity to approximately 2 to 3 times the OPO crystal length. The increase in the length of the OPO cavity will improve the beam divergence of the laser.

The invention discloses an underwater target recognition method based on improved PSO-TSNE feature selection. The underwater target recognition method comprises the steps of performing underwater noise feature extraction on an underwater target radiation noise signal and normalizing data to obtain a standardized data set; performing dimension reduction processing on the data of the standardized data set by using T-SNE to obtain similarity between high-dimensional space data points, similarity between data points in a low-dimensional space, and an objective function and a step function for KL divergence optimization of the high-dimensional space data points and the low-dimensional space data points; obtaining an optimal KL value by using an improved PSO algorithm; and carrying out dimension reduction processing on the data of the standardized data set by using the minimum KL and the T-SNE again, and taking underwater target features to confirm a target. According to the method, the updated PSO is adopted to optimize the divergence in the T-SNE, so that the performance of the T-SNE is better.

The invention discloses a carbon fiber bicycle rim with a good radiating performance. The rim comprises a rim body and brake edges arranged at two sides of the rim body; one reinforcing layer is arranged at the outer surface of each brake edge; each reinforcing layer is formed by weaving wear-resistant fibers with a metal plating. The invention also discloses a bicycle with the rim. The wear-resistant fiber reinforcing layers with the metal plating cover the brake edges, so the surface heat conduction coefficient of the carbon fiber rim is greatly improved, heat is fast dissipated, the temperature rising effect due to heat accumulation is greatly reduced, temperature rising is avoided, and the strength is kept even a resin with the standard Tg temperature is used, so the riding safety of a player is ensured.

The present invention discloses a seismic omnidirectional vector divergence detector which comprises four detectors and a support structure. The support structure is used for supporting the four detectors such that the bottom surfaces of the four detectors are on four equilateral triangular faces of a regular tetrahedron respectively. The intersection of the working axis of each detector and the corresponding equilateral triangular face are at the center of the equilateral triangular face. According to the Gauss divergence formula of the field theory, a specific space motion vector detection structure is designed so as to realize the detection of the frequency, amplitude, phase, and vibration direction of a seismic wave field and especially the divergence information detection of a wave power field, and the novel seismic omnidirectional vector divergence detector technology is realized.

The invention discloses an environment-friendly multifunctional air purifier. The environment-friendly multifunctional air purifier comprises a bottom plate, a control panel is mounted at one end of one side of the bottom plate, a fan bin is mounted at the middle position of the top of the bottom plate, a fan bin cover is mounted at the top of the fan bin, a fan is mounted at the middle position of the interior of the fan bin, one side, close to the control panel, of the fan bin is provided with a primary filter bin, two sets of filter net frames are mounted inside the primary filter bin, filter nets are mounted inside the filter net frames, a primary filter bin cover is mounted at the top of the fan bin, one end, close to the control panel, of the upper portion of the bottom plate is provided with a filter bin. According to the environment-friendly multifunctional air purifier, a negative ion generator can be used to generate negative ions to improve air, various harmful substances inthe air can be cleared through ventilation and filtering, humidity in the air can be adjusted, and compared with an existing purifier, the air purifier is stronger in functionality and higher in practicability.

The invention relates to a heating system for an infant incubator. The heating system for the infant incubator comprises a heating unit and is characterized in that the heating unit is arranged on a bottom plate of a bed body of the infant incubator, the bottom plate tilts downwards from the middle portion to the periphery to form an oblique face, the oblique face of the bottom plate is provided with a groove used for containing the heating unit, and a fan is arranged in the middle of the bottom plate; the heating unit is symmetrically arranged in the groove relative to an axial flow fan, and a through hole which allows airflow to penetrate through the bottom plate to enter the position below the bottom plate is further formed in the bottom plate. Compared with the prior art, the high-effect heating system for the infant incubator is used, the radiating area is large, radiating speed is high, radiating is even, and the heat of the heating unit can be transferred quickly; the inside of an infant cabin can be heated up quickly, and preheating time is greatly shortened; meanwhile, maintaining and using of the heating unit are reliable and safe, and cleaning is very convenient.

A device for the quantified evaluation of surface characteristics including a first radiation structure which is arranged in a first predetermined angle with respect to a surface to be analyzed and which directs radiation onto the surface to be analyzed, wherein the radiation directed onto the surface has at least one component with wavelengths in the infrared area, a detection apparatus arranged in a second predetermined angle with respect to the surface to be analyzed detecting the radiation radiated onto the surface and being thrown back from it.

The invention discloses an energy-saving and emission-reducing terahertz activating combustion-supporting oil inlet pipe. The oil inlet pipe comprises an oil inlet pipe body, wherein the oil inlet pipe body communicates with a fuel oil muffler, is sleeved with an activating combustion-supporting device and is connected with a plurality of positioning and mounting buckles in a clamped mode, a resonance plate is arranged in the fuel oil muffler, the positioning and mounting buckles are composed of buckling plates, first adjusting plates, second adjusting plates and connecting panels, and the activating combustion-supporting device can be used for dispersing terahertz waves. The oil inlet pipe is simple in structure and reasonable in design, the built-in fuel oil muffler is arranged, so thatfuel oil noise can be greatly reduced, the positioning and mounting buckles are used for positioning and mounting, simplicity, speediness and convenience are achieved, oil pipe deformation and flow section reduction cannot be caused, the normal supply of a fuel oil is guaranteed, meanwhile, the activation effect of the terahertz waves is combined, the activating combustion-supporting device is arranged, so that fuel oil molecules can be activated, the combustion efficiency of the fuel oil is improved, the effects of saving energy, improving power and reducing emission are achieved, a terahertzmetamaterial is simple in preparation method, and is low in cost, the divergent terahertz waves of the terahertz metamaterial is high in divergence rate, good in penetration property, and long in dispersion time.

The invention relates to a steam cavity radiator, which is attached to a heating element and dissipates the heat energy generated by the heating element through liquid-gas phase change. The steam chamber radiator has a cover, a heat dissipation base attached to the heating element, and heat-conducting powder, wherein the cover is joined to the heat dissipation base and forms a closed accommodating space between the two to accommodate the liquid-gas phase change. For heat dissipation liquid, the inner surface of the heat dissipation base facing the accommodating space has a raised portion corresponding to the heating element, and the above-mentioned heat-conducting powder is arranged on this surface to form a capillary space. There are more powders than other layout areas, so more capillary space is provided to more effectively use capillary phenomenon for heat transfer and improve heat dissipation effect.