99results about How to "Reduce transmission rate" patented technology

An improved acoustical damping wall (ceiling or floor) or door material comprises a laminar structure having as an integral part thereof one or more layers of viscoelastic material which also functions as a glue and one or more constraining layers, such as metal, cellulose, wood, or petroleum-based products such as plastic, vinyl, plastic or rubber. In one embodiment, standard wallboard, typically gypsum, comprises the external surfaces of the laminar structure; and one or more constraining layers are fabricated between the gypsum exterior. The resulting structure improves the attenuation of sound transmitted through the structure.

A method and apparatus that improves the performance of TCP (and other protocols) in a data network by implementing segmenting the TCP path and implementing a proprietary protocol (DPR™) over the network. The DPR™ protocol provides a multiplexed tunnel for a multiplicity of TCP sessions from a client to a cloud proxy. DPR™ implements congestion management, flow control, reliability, and link monitoring. Other network protocols (such as UDP) are supported with a reliability protocol based upon network coding that improves the transmission reliability. A network and a method for transmitting processes in a network are disclosed, using deterministic coefficients for encoding packets based on network coding principles. Disclosed is a method and implementation for using deterministic coefficients for encoding packets based on network coding principles. The use of deterministic coefficients reduces the need for extra information to be transmitted to recover the lost packets and results in significantly reduced overhead and increased performance, security and reliability.

The invention relates to the field of composite materials and medical instruments, in particular to a preparing method for a high-strength high-isolation condom comprising a modified graphene/latex interlayer. The preparing method includes the steps that stable dispersion liquid prepared by modified graphene, latex liquid and common auxiliaries are mixed evenly to prepare compound latex liquid; a three-time impregnation process is adopted for forming, conventional latex liquid is used for impregnation in first-time and third-time impregnation, and the modified graphene/latex compound latex liquid is used as impregnation liquid in second-time impregnation to obtain the condom which is provided with conventional latex films on the innermost surface and the outermost surface and a modified graphene/latex compound material film interlayer in the middle to be of a sandwich structure finally. The prepared composite grapheme condom has the characteristic of blocking penetration of small-size viruses. Tear resistance and other indexes are obviously improved, and the blasting volume and the ultimate elongation rate are obviously increased on the premise of the same size. The high-strength high-isolation condom has the advantages of being scientific in principle, poisonless, harmless, stable in performance and capable of being matched with the current condem production process easily, and characteristics are remarkable.

A system and method for compressing digital image data. An image may be divided into sub-regions. A maximum number of template codes may be determined for representing each sub-region, each template code uniquely identifying a template pattern in a dictionary. Each of a plurality of the sub-regions may be associated with a plurality of template patterns, each of which individually does not match the sub-region, but which when combined together more closely match the sub-region. A compressed data set may be generated for the image, in which each sub-region is represented by up to the maximum number of template codes uniquely identifying the associated plurality of template patterns. The up to the maximum number of template codes may be transmitted for each sub-region from the compressed data set, wherein the maximum number of template codes is a dynamic parameter adjustable based on the bandwidth available for transmitting.

Provided is a communication system capable of suppressing decrease in a transmission rate. An eNB communicates with a UE using a self-contained subframe. The self-contained subframe includes a downlink signal to be transmitted from the eNB to the UE, and an uplink signal to be transmitted from the UE to the eNB in response to the downlink signal. The uplink signal has a structure including an uplink control signal indicating information for controlling transmission of the uplink signal, and uplink user data to be transmitted before and after the uplink control signal. The eNB notifies the UE of a structure of the uplink signal.

The invention relates to a method for controlling overload in a packet-switched network, especially in a network where the Transmission Control Protocol (TCP) is used as the transport layer protocol. In order to inform the traffic source at a very early stage that the network is getting overloaded or congested, the transmission of acknowledgments traveling towards the source is only allowed if enough tokens are available. A token-based mechanism calculates the number of tokens on the basis of resource conditions such as a spare forward buffer capacity in a network node. Thereby, a threshold for a buffer occupancy or a rate for delaying the acknowledgments do not have to be determined. The acknowledgments are constrained closely related to the current network resource and not to the characterization of the data traffic. As a result, the overload control is significantly robust.

The invention provides a vibration isolation device for combining high and low frequency vibration. The vibration isolation device is composed of a base, a concave support table, a fixed bottom plate, a frame, a vertical stiffness-damping mechanism, a locking clamp, a horizontal stiffness-damping mechanism, a movable hinging chain seat, a guide rod and a straight line bearing. A realization device of nonlinear stiffness and nonlinear damping is provided based on special vibration isolation performances of the nonlinear stiffness and the nonlinear damping. A stiffness-damping mechanism comprised by the realization device has low dynamic stiffness to enlarge vibration isolation band and has high static stiffness to ensure that static deformation is small and does not lose stability; and the realization device also uses nonlinear damping to together suppresses the height of formant, and while reducing the height of the formant, the formant is moved left to broaden the vibration isolation frequency band and to suppress the transmission rate at high frequencies.

A fluid flow measurement system including a sheet-shaped light emitting device that emits a sheet-shaped light into a flow field of a fluid containing particles; a CMOS image sensor that captures an image on a sheet emitted by the light-emitting device and that can convert the image signal into digital data; a timing controller that synchronizes the light-emitting device and the CMOS image sensor; and an image processor that compares and analyzes luminance pattern distributions of images on the sheet captured by the CMOS image sensor at various times, for measuring movement direction and movement amount of the particles. As needed, a transmission line is used or the imaging interval is shortened by using two CMOS image sensors and a beam splitter. Thereby, PIV can be used when the light amount is insufficient, the system is in a radiation environment, or flow speed is high.

A positioning apparatus includes a wafer chuck which retains a wafer and a hollow plate unit which retains the chuck, which is composed of a ceramic material in an integral, hollow structure having a hollow section, the hollow section having a rib structure which serves to increase the natural frequency of the hollow plate unit with respect to torsional mode vibration, and which has holes for providing connection between the interior and exterior of the hollow section. The rib structure is constructed such that a rib unit having a rectangular shape in cross section, the sides thereof extending along X and Y fine movement directions, and a rig unit having a diamond shape in cross section are alternately disposed inside each other and are bonded to each other.

The invention relates to a multi-in-one cultivation simple building for China wood frog. Said simple building comprises building body, roof and pool inside room; the lower building body is complete closed, the upper building body is provided with pillar on lower building body, and is circled with sun-shading net around pillar, the outside of sun-shading net is equipped with movable curtain; the roof is straw roof and has two sides along ridge; the pool inside the room comprises cultivation pool and laying-up basin, each cultivation pool is provide with a overflow bench, the bench surface is equipped with a cushion and the cushion is fixed on slope bench with a plurality of bracing column of same height, and a bamboo curtain is placed on the bracing column for young wood frog rest. The said multi-in-one employs cultivation technique of supporting facilities of temperature control, humidity control, disinfection and bait feed in one cultivation pool, and finishes whole courses of oviposition, hatching, polliwog coming out of film, and young frog growth into product frog and hibernation. The survival rate is above 80%, adult frog can be sold in the same year, the investment is saved and cultivation scale can be enlarged.

The invention relates to the technical field of structural vibration control and discloses a vibration isolator. The vibration isolator comprises a steel plate spring, a first air spring, a second air spring, a foundation and a device waiting vibration isolation, wherein the first air spring and the second air spring are horizontally arranged and are located on the two sides of the device waiting vibration isolation, and the two ends of each of the first air spring and the second air spring are hinged to the foundation and the device waiting vibration isolation respectively through bolts; the two air springs provide non-linear restoring force and damping force for the device waiting vibration isolation and guarantee that the device waiting vibration isolation moves in the vertical direction; the steel plate spring is horizontally arranged and provides linear and elastic support for the device waiting vibration isolation, and the two ends of the steel plate spring are fixedly connected to the device waiting vibration isolation and the foundation respectively through bolts. The vibration isolator has the advantages that the static deformation can be effectively reduced, and therefore the static rigidity can be improved, and the stability of a system can be improved; the inherent frequency of the system can be effectively lowered, and therefore the vibration isolation area can be expanded, and the vibration isolation efficiency can be improved; the transmissibility of a resonance region and a vibration isolation region can be simultaneously and effectively lowered, and therefore the vibration isolation effect of the vibration isolator can be improved.

The invention discloses a preparation for blocking coronavirus infection. The preparation directly acts on an oral cavity and a pharynx, can also be atomized into aerosol, and directly enters a respiratory tract and a lung along with breath. The preparation comprises galactose and a sialic acid carbohydrate chain structure. By increasing the concentration of galactose and salivary acidified glycoprotein in the oral cavity, the pharynx, the respiratory tract and the lung, coronavirus can be combined to galactose and sialic acid carbohydrate chain structure to neutralize and inhibit recognitionof coronavirus on specific receptors on the surfaces of human cells, so that the effect of blocking coronavirus is achieved, and invasion of coronavirus to human is blocked. The active ingredients ofthe preparation are preferably rich-galactose and salivary acidified glycoprotein separated and purified from milk.

The invention relates to an anti-resonance type resonance screen, which belongs to the technical field of oscillating machinery. The anti-resonance type resonance screen comprises an upper mass body, a lower mass body, a main vibrating spring, a vibration exciter, a vibration isolation spring, levers, balance weights, a base, a motor, a driving shaft, and a motor bracket. The upper mass body is provided with the vibration exciter, the upper mass body is connected with the lower mass body through the main vibrating spring, the lower mass body is arranged on the base through the vibration isolation spring, at least four levers vertical to the vibrating direction are arranged symmetrically between the upper mass body and the lower mass body through hinges, and one end of each lever is provided with the balance weight. The anti-resonance type resonance screen can be operated in a resonance state and an anti-resonance state simultaneously, has good vibration isolation effect and solves the vibration isolation problem of the prior resonance screen, and the mass of the lower mass body can be much far less than that of the prior resonance screen so that the weight of the complete machine can be greatly reduced. Because of the principle of resonance, the required exciting force can be greatly reduced, and the mass of the exciter can be reduced in favor of saving energy and improving the service life of a screening machine.

In a cover for a variable geometry vehicle headrest having a geometry including a center surface and integral left and right lateral extensions, each of the lateral extensions defining planes of angulation relative to the center surface along respective lines of dependency between the center surface and each respective lateral extension, the cover includes a stretchable, breathable moisture-absorbent fabric enveloping the headrest and formed in proportion to dimensions smaller that the headrest but within a range of stretchability of the cover relative to the dimensions the headrest, the fabric including internal bands of resilient material having a greater modulus of elasticity than that of the fabric, the bands secured within the fabric proximally against each of the lines of dependency between the center surface and the lateral extensions of the headrest.

The embodiment of the invention relates to the field of video playing hardware, and discloses a video playing method, a terminal and a computer readable storage medium. The video playing method disclosed by the invention comprises the following steps: obtaining a corresponding time pause rule and a corresponding playing restoration rule according to identification information of a to-be-played video; when the video is played, judging whether the playing time of the video satisfies the time pause rule; and when the playing time of the video satisfies the time pause rule, pausing the video, monitoring an operation of a user on the video, and if the operation of the user satisfies the playing restoration rule, continuing to play the video. Therefore, a new mode is provided for preventing screen recording of the video when being played.

A vacuum pump comprises a housing, a drive shaft supported by a beating arrangement for rotation relative to the housing about an axis, and a pumping mechanism comprising a stator component mounted on the housing and a disk-shaped rotor component mounted on the drive shaft axially proximate the stator component. The bearing arrangement comprises a bearing supported in both radial and axial directions by a resilient support, comprising inner and outer annular portions connected by a plurality of flexible members, so that there is a fixed relation between the inner race of the bearing and the outer portion of the resilient support to determine the axial clearance between the rotor and stator components of the pumping mechanism.

The invention relates to a vibration reduction and impact resistance method for a spaceflight sensor. The vibration reduction and impact resistance method comprises the steps of: analyzing a vibration source; determining the range of the inherent frequency f of a system consisting of vibration reduction and impact resistance materials and a sensor; setting the amplification factor Q for generating resonance of the sensor and the input excitation at the inherent frequency f part of the sensor; determining the damping coefficient Zeta of the vibration reduction and impact resistance materials; estimating the rigidity k of the vibration reduction and impact resistance materials through finite element analysis software, and determining the shape, the number and the arrangement form of the vibration reduction and impact resistance materials; and the like. The vibration reduction and impact resistance method has the advantages that the vibration reduction and impact resistance compatibility of the spaceflight sensor under the mechanical environment is simultaneously considered, firstly, the vibration reduction requirement is met, the proper damping of the vibration reduction and impact resistance materials is selected so that the amplification factor is in a controllable range, next, the inherent frequency of the whole system is reduced to the maximum degree, the transmissibility of the system is reduced for meeting the impact resistance requirement, the vibration reduction and the impact resistance of the spaceflight sensor are effectively realized, and the performance stability of products in spaceflight mechanical environment is ensured.

The invention discloses a cutting propagation method for jasmine. The method includes the following steps that 1, a cutting shoot is prepared, a jasmine root system without obvious germ infection or scars is selected as the cutting shoot, the diameter of the jasmine root system is larger than or equal to 2 mm, the cutting shoot is cut into a small segment with the length ranging from 4 cm to 10 cm, the upper end of the cutting shoot is cut into a flat opening, the lower end of the cutting shoot is cut into a 45-60-degree inclined opening, excessive or too long fibrous roots on the root system are sheared off, the length of the left fibrous root is not larger than 1 cm, and meanwhile disinfection is conducted; 2, the cutting shoot is treated; 3, cutting treatment is conducted. According to the cutting propagation method for jasmine, the cutting shoot selected for cutting is an abandoned root system generated by clipping or cutting-off or shaping in the jasmine transplanting, pot replacing and large land seedling updating processes, a new path is provided for jasmine cutting propagation, and maximum utilization of resources is achieved. The requirement of the cutting shoot for the maturity of the jasmine root system is low, root system materials can be available and used for cuttage at any time, and the influences of materials or seasons are low. Operation is convenient, and the cuttage survival rate is high.

A differential amplifier stage under a band design whereby a data signal at a maximum transfer rate among received waveforms is subjected to attenuation upon passing through a transmission line is not amplified, and a signal at a transfer rate half the maximum transfer rate is amplified. If it is determined that a signal whose amplitude is larger in value than a high reference voltage, the signal is determined as a signal “1” while if smaller in value than a low reference voltage, the signal is determined as a signal “0”. If the first amplitude detector detects that the amplitude of the signal is smaller in value than the high reference voltage, and the second amplitude detector detects that the amplitude of the signal is larger in value than the low reference voltage, the present signal is determined as an inverting signal of an immediately preceding signal.