Feed additive for large yellow croaker

The invention discloses a feed additive for a large yellow croaker, belonging to the technical field of the feed additive. The feed additive is characterized by comprising the following components by weight part: 15-25 parts of pomegranate bark, 10-30 parts of houttuynia cordata, 20-30 parts of hawthorn, 10-15 parts of onion, 10-15 parts of garlic, and 3-5 parts of salt. The feed additive for the large yellow croaker is used in a compound feed for the large yellow croaker as the feed additive, can effectively prevent common diseases such as vibriosis, a bacterial gill disease and enteritis, effectively strengthens the organism immunity of the large yellow croaker simultaneously, improves the resistance to the diseases and the survival rate, and is free of toxic and side effects and adverse reaction, and free of adverse effect on the palatability of the feed. The material used in the feed additive is stable in source and low in cost, and the production process is simple.

Embedded-type perforated plate section device of waterpower cavitation reactor

The invention discloses an embedded-type perforated plate section device of a waterpower cavitation reactor, which is characterized by comprises a waterpower cavitation generation device and a square fracture surface observation section. The waterpower cavitation generation device is an embedded-type perforated plate which is provided with a beam hole, a clamping groove is arranged at the inlet position of the observation section, and the perforated plate is embedded in the clamping groove. Organic glass bringing convenience in observation are arranged on two sides and the top of the observation section, a movable steel plate is arranged at the bottom of the observation section, and a plurality of pressure holes capable of colleting pressure of each measure point in real time are arranged on the steel plate. An upstream section of the observation section is connected with a circular square joint, and a downstream section of the observation section is connected with a circular square joint ...

Bank side and center discharging device used for water environment study

The invention discloses a bank side and center discharging device used for water environment study. The bank side and center discharging device used for the water environment study comprises a rotor flow meter and a branch way composed of control valves. The branch way is connected with a 90-degree bending head to form a fold-back-shaped pipeline. The tail end of the fold-back-shaped pipeline is a discharging end which can be replaced by a horizontal bank side discharging pipe or a vertical center discharging pipe as required. The bank side and center discharging device used for the water environment study has the advantages of being convenient to install, simple in structure, easy to operate and the like, and adjustment of discharging flow of the pipeline and change of a discharging direction of the pipeline are convenient.

Traditional Chinese medicine composition for treating bone fracture

The invention discloses a traditional Chinese medicine composition, particularly a traditional Chinese medicine for treating bone fracture, which comprises the following components in parts by weight: 8-10 parts of Aster fastigiatus Fisch, 4-6 parts of versioolor swallowwort root, 4-6 parts of Phyllanthus amarus, 6-8 parts of Indigofera pseudotinctoria, 3-5 parts of common pistache fruit, 2-4 parts of cantonese ampelopsis, 5-7 parts of Hibiscus syriacus, 8-10 parts of elderberry, 8-10 parts of radix achyranthis bidentatae, 6-8 parts of american lopseed, 4-6 parts of club moss, 5-7 parts of dried rehmannia, 5-7 parts of pseudo-ginseng, 4-6 parts of corydalis tuber, 2-4 parts of draconis sanguis, 8-10 parts of frankincense, 8-10 parts of myrrh and 2-4 parts of cuttlebone. The traditional Chinese medicine composition disclosed by the invention is especially used for treating bone fracture, has the advantages of obvious curative effect, favorable drug properties and high safety and reliability ...

Microcapsule bait feed for larval and juvenile oplegnathus fasciatus and feeding method

The invetion provides a microcapsule bait feed for larval and juvenile oplegnathus fasciatus. The microcapsule bait feed is composited by raw materials of sunflower meal, bran, rice bran, locust tree leaf powders, krill powders, sheep fat, pig blood powders, blood worm powders, soya bean lecithin, fish oil, compound vitamin, compound mineral substances, binders and phagostimulant. By means of innovative formulas and processing techniques, the microcapsule bait feed has advantages of complete nutrition, good palatability and good stability performance in the water and is capable of meeting nutrition requirements for growth of the larval and juvenile oplegnathus fasciatus and achieving volume production, convenient to store, transport and feed and suitable for industrial production of offspring seeds. Simultaneously, by means of a corresponding feeding method, growth and survival rates of the larval and juvenile oplegnathus fasciatus can be improved, and the feeding method is suitable for ...

Concrete test piece die for cavitation and cavitation erosion

A concrete test piece die is formed by processing organic glass, and comprises a base, a cover plate and side plates. Two cylindrical projections are arranged on the base and can be used for holing a poured concrete test piece so that the concrete test piece can be mounted or taken out from a cavitation erosion section of a water tunnel, the cover plate is connected with the base through bolts, concrete is filled in after the bolts are tightly screwed down, the concrete test piece can be taken out by unscrewing the bolts after pouring forming, and the bottom surface of the cover plate is provided with projections corresponding to the concrete test piece mounting positions in the cavitation erosion section of the water tunnel. The concrete test piece die is simple in operation, high in precision and capable of pouring concrete test pieces of the same size, and the poured concrete test pieces can be mounted or taken out from the cavitation erosion section of the water tunnel.

Parallel beam-combining method for achieving all-solid-state laser high-power output

A parallel beam-combining method for achieving all-solid-state laser high-power output comprises the following steps that 1) an equivalent resonant cavity is designed; 2) a parallel combined beam of two independent all-solid-state lasers is designed; 3) N all-solid-state lasers are subjected to parallel beam combining. According to the method, output laser beams of the N all-solid-state lasers can be completely combined, N laser beams sent out by different lasers are output in an overlapping mode with the same optical axis, the same beam waist position and the same divergence angle, and the beam quality of laser light after beam combining is not lower than that of a single all-solid-state laser. The all-solid-state lasers achieved through the method can achieve a modularization structure, bad influence on whole machine stability and reliability from pumping evenness changing of a single laser module can be effectively lowered, whole machine stability and reliability can be well improved ...

Simple bottle-type water sample collector

A simple bottle-type water sample collector, especially a bottle-type water sample collector for water sample collection at different depths in surface water comprises a cylinder for accommodating a glass water sample bottle; a cover plate, and a draw ring are disposed at the upper end of the cylinder; a hinged support for connecting the cylinder is disposed at one end of the cover plate; a hasp is disposed at the other end; the cover plate can be opened by the hasp to put in or take out the glass water sample bottle; a bottle cap lasso is connected with the bottle cap of the glass water sample bottle; the draw ring is connected with a draw ring rope; a weight pedestal is connected with the bottom of the cylinder, which facilitates the water sample collector to sink to different depths underwater. The invention has the advantages of small size, convenient carrying, simple structure, and easy operation, and is convenient for water sample collection at different depths in rivers, lakes and ...

Energy-saving assessment system of central air-conditioning system

The invention discloses an energy-saving assessment system of a central air-conditioning system. The energy-saving assessment system comprises a central air-conditioning system energy-saving analytical test platform, a power acquisition module, a temperature acquisition module, a flow acquisition module and a pressure acquisition module, wherein the power acquisition module, the temperature acquisition module, the flow acquisition module and the pressure acquisition module are respectively connected with the central air-conditioning system energy-saving analytical test platform, each module comprises a plurality of sensors corresponding to the module, and the sensors are arranged in areas where data need collecting. The system uses each gathering module to conduct dispersive data acquisition on the central air-conditioning system according to equipment distribution, uses a wired or wireless mode to upload the data to summarize, and accordingly achieves analytical test on energy-saving effects ...

Chinese medicinal composition for treating gastric ulcer

The invention discloses a Chinese medicinal composition for treating gastric ulcer. The Chinese medicinal composition is characterized by being prepared by the following raw materials by weight: 8 to 10g of zornia root, 4 to 6g of Cavalerie's mosla, 2 to 4g of akebia fruit, 3 to 5g of cacalia root, 3 to 5g of thesium, 2 to 4g of rhizome of common lophatherum, 10 to 12g of dragon's blood, 10 to 12g of cuttle bone, 2 to 4g of common bletilla pseudobulb, 2 to 4g of liquoric root, 14 to 16g of thunberg fritillary bulb, 7 to 9g of medicinal evodia fruit, 4 to 6g of long pepper, 4 to 6g of cassia bark and 4 to 6g of coptis root. The Chinese medicinal composition has the advantages that the Chinese medicinal composition has a good curative effect and moderate taste, does not have bitter taste and toxic and side effects, is mild and easy to take, short in treatment course and high in cure rate, and eliminates relapse after gastric ulcer is cured.

Marine fish breeding feed and preparation method thereof

The invention provides a marine fish breeding feed and a preparation method thereof and belongs to the technical field of breeding feed. The breeding feed comprises the following components in parts by weight: 40 to 60 parts of flour, 45 to 55 parts of earthworm powder, 5 to 15 parts of silkworm chrysalis powder, 10 to 20 parts of refined white sugar, 10 to 15 parts of vitamin C, 0.5 to 2 parts of trace elements, 1 to 5 parts of flavorant, and 0.5 to 1.5 parts of dietary fiber. By adopting the prescription and the preparation process, a high-efficiency palatable artificial assorted feed is provided. The feed has high nutritional value and excellent performances in color, smell and taste, hardly causes environment pollution, so that quick, stable and healthy development of marine fish uncontaminated breeding can be promoted. The marine fish breeding feed can fulfill the requirement for fish growing nutrition, and has the advantages of high stability performance in water, low environmental ...

Venturi pipe and perforated plate combined-type hydrodynamic cavitation reaction chamber

The invention discloses a venturi pipe and perforated plate combined-type hydrodynamic cavitation reaction chamber, including a venturi pipe and a scoop-type porous plate device, wherein the venturi pipe is connected with the scoop-type porous plate device, the venturi pipe is composed of a contraction section, a throat straight pipe section, and a diffusion section which are in sequential connection; the inlet section and the outlet section of the venturi pipe and the throat straight pipe are all of square cross-section, two sides and top of the throat straight pipe are provided with first organic glass which is easy for observation, the bottom of the throat straight pipe section is provided with a first movable steel plate, the first movable steel plate is provided with a plurality of pressure detection holes which are convenient for collecting pressure at each measuring point in a real time manner. According to the invention, a scoop-type porous plate is stretched into the observation ...

Staggered parallel connection beam combing method for realizing high-power output of all-solid-state lasers

The invention relates to a staggered parallel connection beam combing method for realizing high-power output of all-solid-state lasers. The method comprises the following steps that 1, an all-solid-state laser with an equivalent resonant cavity is designed; 2, the staggered parallel connection beam combination of two independent all-solid-state lasers is carried out; and 3, the staggered parallel connection beam combination of N independent all-solid-state lasers is carried out. The staggered parallel connection beam combing method has the advantages that the laser emitted by the N independent all-solid-state lasers can be output in the same emitting optical axis, the same girdling position and the same emitting angle in a superposed way, the N-times amplification of the power is realized, and in addition, through the reflection and the transmission of a 45-degree coupling output mirror on the laser, the energy coupling is built among the N all-solid-state lasers. When the condition occurs ...

Acoustic Doppler velocimeter (ADV) moving device

The invention discloses an acoustic Doppler velocimeter (ADV) moving device, which is characterized by comprising a fixing device, a lifting rod and a base, wherein the lifting rod comprises a fixed part and a moving part; chutes are formed on the fixed part and the moving part; a sliding rail matched with the chute on the moving part is arranged on the fixed part, so that the moving part can longitudinally move relative to the fixed part; the fixed part is arranged on the base through a bolt; a sliding rail matched with the chute on the fixed part is arranged on the base; the fixed part can transversely move on the base; the bottom end of the base is provided with four wheels capable of moving in a water channel; and the fixing device is a circular clamping groove, is arranged at the lower end of the moving part of the lifting rod, and is used for fixing a probe of an ADV through a bolt. By the ADV moving device, the probe of the ADV can be accurately fixed at any position of the water ...

Medicine for treating eczema

The invention discloses an externally applied medicine, and relates to a medicine for treating eczema. The medicine contains the following pharmaceutical components, by weight: 6-8 parts of Machilus velutina Champ.ex Benth., 8-10 parts of Bryum argenteum Hedw., 10-12 parts of water shield, 8-10 parts of Gouania jamnica Miq, 6-8 parts of the root of fangfeng, 2-4 parts of Schizonepeta, 4-6 parts of golden cypress, and 4-6 parts of phaseolus calcaratus. The invention has beneficial effects that the medicine is special for the treatment of scabies, and has advantages of few raw materials required, simple preparation method, convenient usage, short treatment cycle, safe clinical application, no toxic or side effect, remarkable curative effect, many effective components absorbed, good performance of medicine property, treatment on both principal and secondary aspect of disease, and good curative effect on scabies.

Installation process for ship body generator set

The invention relates to an installation process for a ship body generator set. The installation process includes the following steps of manufacturing a first steel base plate, manufacturing a second steel base plate, conducting finish machining, preparing a base, installing the base, hoisting the generator set, pouring epoxy resin into the position between the second steel base plate and the base to form an epoxy resin gasket, and a temporary cushion block is removed after gasket pouring is finished. The installation process has the advantages that working efficiency is improved, and the even stress is guaranteed.

Medicine for treating scabies

The invention belongs to traditional Chinese medicine composition and relates to a medicine for treating scabies. The medicine is characterized by comprising the following components, by weight: 10-12 parts of herb of Ivy Glorybind, 15-17 parts of rhizoma acori graminei, 3-5 parts of Sichuan chinaberry bark, 8-10 parts of pepper, 5-7 parts of fructus psoraleae, 4-6 parts of fructus alpiniae oxyphyllae, and 3-5 parts of cocklebur fruit. The invention has beneficial effects that the medicine is special for the treatment of scabies, and has advantages of few raw materials required, simple preparation method, convenient usage, short treatment cycle, safe clinical application, no toxic or side effect, remarkable curative effect, many effective components absorbed, good performance of medicine property, treatment on both principal and secondary aspect of disease, and good curative effect on scabies.

Device for moving entrained air concentration meter sensor

The invention discloses a device for moving an entrained air concentration meter sensor. The device is characterized by comprising a fixing device, a base and a support, wherein the fixing device is arranged on the base through a bolt; the base is provided with a sliding groove and the support; two sides of the base are provided with two bolts respectively; the support is used for supporting a conducting wire which is connected with the entrained air concentration meter sensor; the fixing device can transversely move on the sliding groove and is a square clamping groove; the clamping groove is used for fixing the entrained air concentration meter sensor; and the entrained air concentration meter sensor can be adjusted to move longitudinally on a water tank or fixed through the bolts on two sides of the base. The device is easy to operate, can be flexibly adjusted, and can adjust the entrained air concentration meter sensor to move transversely or longitudinally on the water tank or fix ...

ULTRA-THIN SPEAKER

Disclosed is an ultra-thin speaker comprising: a housing; and a magnetic circuit system therein; a vibration system comprising a cone assembly and a voice coil, the cone assembly having a taper ≤25°, a peripheral edge thereof connected to the housing, and a middle part thereof having a through hole, the voice coil is fixedly connected at an edge of the through hole, the voice coil surrounds and is suspended around the magnetic circuit system, being able to vibrate by an action of the magnetic field generated by the system when a sound signal is introduced; and a dust cap assembly comprising a dust cap body, a central region of the dust cap body is fixedly connected to the system, and an edge region of the dust cap body is connected to the cone assembly and is able to expand and contract along with the vibration of the cone assembly. 1. An ultra-thin speaker , comprising:a housing;a magnetic circuit system adapted to generate a magnetic field disposed in the housing;a vibration system comprising a cone assembly and a voice coil, wherein the cone assembly has a taper of less than or equal to 25°, a peripheral edge of the cone assembly is connected to the housing, and a middle part of the cone assembly has a through hole, the voice coil is fixedly connected at an edge of the through hole, the voice coil surrounds and is suspended around the magnetic circuit system, the voice coil is configured to be able to vibrate by an action of the magnetic field generated by the magnetic circuit system when a sound signal is introduced; anda dust cap assembly comprising a dust cap body, wherein a central region of the dust cap body is fixedly connected to the magnetic circuit system, and an edge region of the dust cap body is connected to the cone assembly and is configured to be able to expand and contract along with the vibration of the cone assembly.2. The ultra-thin speaker of claim 1 , wherein the dust cap body comprises a fixing portion and a telescopic portion extending ...

LASER CLEANING METHOD AND DEVICE FOR IMPROVING UNIFORMITY OF LASER CLEANING SURFACE

A laser cleaning method and device for improving uniformity of a laser cleaning surface are provided. The laser cleaning method includes: applying a peaked-top sine wave signal to a motor; controlling a galvanometer to swing in a reciprocated manner by the motor; shaping a laser beam emitted by a laser to a linear beam by the reciprocated swing of the galvanometer; and performing laser cleaning using the shaped linear beam. 1. A laser cleaning method for improving uniformity of a laser cleaning surface , comprising:applying a peaked-top sine wave signal to a motor;controlling a galvanometer to swing in a reciprocated manner by the motor;shaping a laser beam emitted by a laser to a linear beam by the reciprocated swing of the galvanometer; andperforming laser cleaning using the shaped linear beam.2. The laser cleaning method according to claim 1 , wherein performing laser cleaning using the shaped linear beam further comprises:controlling a path of laser cleaning by a manipulating device, wherein the path of laser cleaning moves periodically; andimplementing laser cleaning by combining multiple cleaning periods and the swing of the galvanometer.3. The laser cleaning method according to claim 1 , further comprising generating the peaked-top sine wave signal claim 1 , wherein generating the peaked-top sine wave signal comprises:generating a flat-top sine signal from a sine wave signal by a first amplitude limiting circuit;generating a flat-top triangular wave signal from a triangular wave signal by a second amplitude limiting circuit;generating a special triangular wave signal from the triangular wave signal and the flat-top triangular wave signal by a subtraction circuit; andgenerating the peaked-top sine wave signal from the flat-top sine signal and the special triangular wave signal by an addition circuit,wherein the sine wave signal and the triangular wave signal have the same period.4. A laser cleaning device for improving uniformity of a laser cleaning surface ...

ACOUSTO-OPTIC Q SWITCH, RESONANT CAVITY AND PULSE LASER DEVICE FOR IMPROVING LASER DEVICE POWER

An acousto-optic Q switch, a resonant cavity, and a pulse laser device for improving laser device power. The acousto-optic Q switch includes: a transparent optical element configured to form a phase grating that diffracts laser; a piezoelectric transducer arranged at one end of the transparent optical element and configured to convert electrical energy into ultrasonic energy to form the phase grating in the transparent optical element; and an absorber arranged at the other end of the transparent optical element to absorb the ultrasonic energy. 1. An acousto-optic Q switch , comprising:a transparent optical element configured to form a phase grating that diffracts laser;a piezoelectric transducer arranged at one end of the transparent optical element and configured to convert electrical energy into ultrasonic energy to form the phase grating in the transparent optical element; andan absorber arranged at the other end of the transparent optical element to absorb the ultrasonic energy.2. The acousto-optic Q switch according to claim 1 , wherein:an incident surface of the transparent optical element is an arc-shaped curved surface;an exit surface of the transparent optical element is an arc-shaped curved surface.3. The acousto-optic Q switch according to claim 2 , wherein:a curvature of each position of the arc-shaped curved surface of the transparent optical element is a constant value or a variable value designed according to a change of the curvature of the incident focused beam.4. The acousto-optic Q switch according to claim 2 , wherein:a radius of curvature of the incident surface is same as a radius of curvature of the exit surface; anda sphere center of the incident surface and a sphere center of the exit surface are located on a same side.5. The acousto-optic Q switch according to claim 1 , wherein:material used for the transparent optical element comprises fused silica crystal, lithium niobate, lead molybdate, tellurium dioxide, and heavy flint glass.6. The ...

Cable modem termination system

A system, in one embodiment, includes a cable modem termination system configured to perform at least the following processing: determining a first quantity related to uncorrectable erroneous codewords and a second quantity related to other codewords except the erroneous codewords in the data packet received by the cable modem termination system from the terminal device via the channel; calculating a first metric relating the first quantity to the second quantity; and in response to the first metric exceeding a first threshold for a first predetermined time, determining the channel as a damaged channel.

Method of providing management and control of hotspots with reduced messaging

Methods, systems, and computer readable media are operable to reduce the messaging needed for efficient control of hotspot activities. A database associating hotspots, their hosting broadband home gateways and their Wireless Access Gateways (WAGs) is developed by a monitor that inspects traffic to and from the access points. The monitor provides a WAG monitoring services to the broadband home gateways that reduces the amount of network traffic, while still allowing broadband access gateways to appropriately enable to disable their hotspots with the corresponding condition of the associated WAGs.

Method for Achieving High-Power Solid-State Lasers by Multiple Beams Combination Using Cascaded Compound Laser Resonators

A method for achieving high-power solid-state lasers by multiple beams combination using cascaded compound laser oscillators, comprising the following steps: 1) Designing a compound resonator to achieve an output beam perpendicular to the axis of oscillation in which a compensating lens is used; 2) Designing beam combination of two independent solid-state lasers in cascaded compound cavities and using 4f optical system to compensate the beam waist separation between two lasers; 3) Based on the first two steps, multiple beams combination of N independent solid-state lasers can be achieved. In the present invention, N output beams emitted from N independent solid-state lasers are completely combined, and the combined beams hold the same waist position, size and divergence along down the same optical axis. Therefore, it can preserve original beam quality with that of individual solid-state lasers.

A-o q-switched solid-state laser device with adjustable pulse output and pulsed laser generation method

An acoustic-optic Q-switched solid-state laser device with an adjustable pulse output and a method for generating a pulsed laser are provided. The A-O Q- switched solid-state laser device includes: an oscillation stage module, configured to continuously generate a laser; a programmable signal generator, configured to generate an analog signal; an A-O Q-switch driver, configured to receive the analog signal generated by the programmable signal generator to generate a radio frequency signal in a step shape; and an A-O Q-switch, configured to receive the radio frequency signal generated by the A-O Q-switch driver, and modulate, according to the radio frequency signal, the laser generated by the oscillation stage module to convert the laser into a pulsed laser.

Laser cleaning method and device for improving uniformity of laser cleaning surface

A laser cleaning method and device for improving uniformity of a laser cleaning surface are provided. The laser cleaning method includes: applying a peaked-top sine wave signal to a motor; controlling a galvanometer to swing in a reciprocated manner by the motor; shaping a laser beam emitted by a laser to a linear beam by the reciprocated swing of the galvanometer; and performing laser cleaning using the shaped linear beam.

Cable modem termination system

A system, in one embodiment, includes a cable modem termination system configured to perform at least the following processing: determining a first quantity related to uncorrectable erroneous codewords and a second quantity related to other codewords except the erroneous codewords in the data packet received by the cable modem termination system from the terminal device via the channel; calculating a first metric relating the first quantity to the second quantity; and in response to the first metric exceeding a first threshold for a first predetermined time, determining the channel as a damaged channel.

Acousto-optic Q switch, resonant cavity and pulse laser device for improving laser device power

An acousto-optic Q switch, a resonant cavity, and a pulse laser device for improving laser device power. The acousto-optic Q switch includes: a transparent optical element configured to form a phase grating that diffracts laser; a piezoelectric transducer arranged at one end of the transparent optical element and configured to convert electrical energy into ultrasonic energy to form the phase grating in the transparent optical element; and an absorber arranged at the other end of the transparent optical element to absorb the ultrasonic energy.

Cable modem termination system

A system, in one embodiment, includes a cable modem termination system configured to perform at least the following processing: determining a first quantity related to uncorrectable erroneous codewords and a second quantity related to other codewords except the erroneous codewords in the data packet received by the cable modem termination system from the terminal device via the channel; calculating a first metric relating the first quantity to the second quantity; and in response to the first metric exceeding a first threshold for a first predetermined time, determining the channel as a damaged channel.

Voice coil for sound producing device and sound producing device

Disclosed are a voice coil for a sound producing device and a sound producing device, the sound producing device comprises a voice coil body and a reinforcing portion; the voice coil body comprises a voice coil framework and a voice coil wire; the reinforcing portion comprises a first reinforcing portion and a second reinforcing portion; the first reinforcing portion is provided on the inner side of the voice coil framework, and the second reinforcing portion is provided on the outer side of the voice coil framework; and the reinforcing portion is configured to enhance the strength of the voice coil at high frequencies. Both the inner side and the outer side of the voice coil framework are provided with the reinforcing portions, thereby preventing the voice coil framework from deforming towards the side with lower strength because the strength of one side of the voice coil framework is relatively low.

A-o q-switched solid-state laser device with adjustable pulse output and pulsed laser generation method

An acoustic-optic Q-switched solid-state laser device with an adjustable pulse output and a method for generating a pulsed laser are provided. The A-O Q- switched solid-state laser device includes: an oscillation stage module, configured to continuously generate a laser; a programmable signal generator, configured to generate an analog signal; an A-O Q-switch driver, configured to receive the analog signal generated by the programmable signal generator to generate a radio frequency signal in a step shape; and an A-O Q-switch, configured to receive the radio frequency signal generated by the A-O Q-switch driver, and modulate, according to the radio frequency signal, the laser generated by the oscillation stage module to convert the laser into a pulsed laser.

Cable modem termination system

A system, in one embodiment, includes a cable modem termination system configured to perform at least the following processing: determining a first quantity related to uncorrectable erroneous codewords and a second quantity related to other codewords except the erroneous codewords in the data packet received by the cable modem termination system from the terminal device via the channel; calculating a first metric relating the first quantity to the second quantity; and in response to the first metric exceeding a first threshold for a first predetermined time, determining the channel as a damaged channel.

A method of providing management and control of hotspots with reduced messaging

Ultra-thin speaker

Disclosed is an ultra-thin speaker comprising: a housing; and a magnetic circuit system therein; a vibration system comprising a cone assembly and a voice coil, the cone assembly having a taper≤25°, a peripheral edge thereof connected to the housing, and a middle part thereof having a through hole, the voice coil is fixedly connected at an edge of the through hole, the voice coil surrounds and is suspended around the magnetic circuit system, being able to vibrate by an action of the magnetic field generated by the system when a sound signal is introduced; and a dust cap assembly comprising a dust cap body, a central region of the dust cap body is fixedly connected to the system, and an edge region of the dust cap body is connected to the cone assembly and is able to expand and contract along with the vibration of the cone assembly.

A method of providing management and control of hotspots with reduced messaging

Methods, systems, and computer readable media are operable to reduce the messaging needed for efficient control of hotspot activities. A database associating hotspots, their hosting broadband home gateways and their Wireless Access Gateways (WAGs) is developed by a monitor that inspects traffic to and from the access points. The monitor provides a WAG monitoring services to the broadband home gateways that reduces the amount of network traffic, while still allowing broadband access gateways to appropriately enable to disable their hotspots with the corresponding condition of the associated WAGs.

Cable modem termination system

A system, in one embodiment, includes a cable modem termination system configured to perform at least the following processing: determining a first quantity related to uncorrectable erroneous codewords and a second quantity related to other codewords except the erroneous codewords in the data packet received by the cable modem termination system from the terminal device via the channel; calculating a first metric relating the first quantity to the second quantity; and in response to the first metric exceeding a first threshold for a first predetermined time, determining the channel as a damaged channel.

Method for improving survival rate of transplanting of greenhouse sweet cherry tree

The present disclosure relates to a method for improving a survival rate of a greenhouse transplanting of a sweet cherry tree, and belongs to the technical field of agricultural planting. The method comprises steps: selection and pretreatment of a tree body, excavation, transplanting, and post—transplanting management. During the transplanting, a mixed solution I prepared from high—phosphorus water flush fertilizer, guintozene, compound sodium nitrophenolate, microbial agent, saccharose, and water in a weight ratio of (6—10): (l.0—l.6): (0.001—0.003): (0.2—0.6): (40— 80): 1000, and a mixed solution II prepared from seaweed foliage fertilizer, growth hormone regulator, and water in a weight ratio of (0.4—0.8): (0.01—0.02): 1000 are used. In the present disclosure, defects in the prior art are overcome, and particularly, a greenhouse can be warmed up for production immediately after the transplanting, thereby yielding an economic benefit in the current year. For orchard workers, the method has an excellent application value.