77results about How to "High loss rate" patented technology

A method of synchronizing data transmission between a host computer system and a transmitter across an interface with variable delay or latency. The host computer system marks transition frames between successive transmission intervals and transfers the outgoing frames across the variable interface to the transmitter. The transmitter enqueues outgoing frames into one or more FIFO transmission queue(s) and processes the enqueued frames as appropriate for the communication protocol in use. Marked frames are detected as they reach the head of the appropriate transmit queue. In particular, while bypassing is not active, the transmitter transmits unmarked frames until the end of the current interval, or until there is insufficient time in the interval to transmit another frame or until a marked frame is detected. While bypassing is not active, the transmitter terminates transmission from the transmit queue when a marked frame is detected during each interval. While bypassing is active, the transmitter discards unmarked frames without transmission until a marked frame is detected. During each interval, the transmitter activates bypassing if a marked frame has not been detected and deactivates bypassing if a marked frame is detected while bypassing is active. The transmitter enables queue mark operation if a marked frame is detected while queue mark operation is not enabled. The transmitter increments a bypass counter each time an interval ends without detecting a marked frame, and disables queue mark operation if the bypass counter reaches a predefined limit.

A frame-based communications system with selectable retry strategy including a controller that programs a retry strategy field of a frame descriptor of a frame, where the retry value indicates a selected one of a normal retry count, an alternative retry count, and at least one "no retry" option. The system includes a transceiver that attempts retransmission of the frame up to as many times indicated by a selected retry count or until expiration of a frame transmit duration, or that does not attempt retransmission if the retry value indicates no retry. The no retry options may include treating the first attempt as successful or returning an unsuccessful attempt as a failure. The frame itself may be programmed with a request to not acknowledge a successfully received frame to recapture the time normally allocated to acknowledgement frames. The transceiver may include acknowledgement logic that is configured to suppress an acknowledgement frame.

A communications system including a scheduling entity and a transceiver coupled across a variable timing interface. The scheduling entity forwards frames for transmission and identifies selected frames as persistent. The transceiver includes a queue, a frame manager and a transmission scheduler. The frame manager receives and enqueues forwarded frames and the transmission scheduler dequeues and transmits frames from the queue and forwards persistent frames back to the frame manager. The transmission scheduler includes persistence logic that detects a persistent mark and asserts a persistent signal that is detected by the transmission scheduler. The scheduling entity identifies a persistent frame by setting a bit in a transmit control field of the frame descriptor. The scheduling entity sends a clear persistence command to the transceiver to clear a persistent mark of an identified frame. The transceiver may be configured for wireless communications.

A method of improving the loss ratio on a book of insurance including the use of a computer data base with a user interface display including questions for insured entities making up the book of insurance. Spaces are provided on the display for the input of answers from an insured. A survey is used to question the insured entity, the survey eliciting answers to the questions posed. Data is input from the answers received into the computer data base at the spaces provided for. The answers that are collected are compared with answers contained in written documents having information that was supplied by a third party insurance underwriter. Inconsistent answers are identified and the information obtained is reported to the underwriter who can determine whether or not the insurance premium of the insured should be adjusted.

An improved MPEG coding method for a moving picture signal, and a system and method for transmitting coded moving picture data using the improved MPEG coding method, fixes an object, selected as a reference frame of inter-frames, to an intra-frame. The moving picture transmission system includes a video processing unit for processing and coding a received video signal receiving a video signal using the improved MPEG coding method, and a transmission unit for transmitting the coded moving picture data in real time, adapting the data to a variation in a network transmission rate. Accordingly, moving picture data, received from a remote fixed camera and coded, can be transmitted in real time, being adapted to a flexible transmission rate of a network.

The invention relates to a compound microbial inoculum for decomposing straw as well as preparation method and application thereof. The compound microbial inoculum for decomposing straw comprises bacillus subtilis, bacillus megaterium, bacillus pumilus, bacillus cereus, fused lactobacillus, azotobocter chroococcum and saccharomyces cerevisiae. A straw bio-organic fertilizer can be prepared by processing the straw by adopting the microbial inoculum. The invention has easy material obtaining, simple production method; and in addition, the straw bio-organic fertilizer has sufficient organic matter fermentation and good fertilizer efficiency and can generate non-polluted green foods and organic foods and play certain roles in improving the soil quality and protecting the environment.

A method of forwarding data transmissions from a first network to a third network via a second network comprises receiving packets of a first type from the first network, segmenting each packet into packets of a second type that are transmitted to the second network, and producing and transmitting at least one encoded duplicate of each of the packets of a second type to the second network to allow a packet of the first type to be recreated in the event that not all the packets of the second type are received. In the event that a sufficient number of the packets of a second type and the encoded duplicate packets are not received to recreate the packet of a first type, the method determines a loss ratio that represents the number of packets not recreated relative to the number of packets transmitted during a selected time interval.

The invention discloses a multi-source traffic data complementing method based on a low rank, and the method can enable the precision of the complemented data to be greatly improved during data loss. The method comprises the steps: (1), constructing data matrixes from the multi-source traffic data; (2), respectively calculating the low-rank expression of each type of traffic data matrix; (3), enabling the low-rank expressions of all traffic data matrixes to be similar to each other through constraint.

A method of preparing data for transmission. The method includes providing a block of data, generating a plurality of first dimension code words including first dimension forward error correction FEC elements, the elements of each code word may be used interchangeably to reconstruct a data portion of the block corresponding to the code word, defining a plurality of second dimension source words formed of the generated elements and generating for at least two of the defined second dimension source words, different numbers of parity elements.

A technique which realizes an efficient handover by reducing loads on a mobile node and an access router and communication traffics thereof while keeping a packet loss rate in a fast handover technology is disclosed, and according to that technique, a mobile node (MN 10) has a correspondence relationship between information (link layer address of an AP) on an access point (AP 22, 23, 32, 33) and information (link layer address of an AR, and a network prefix and a prefix length of a subnet 20, 30 to which the AR belongs) on an access router (AR 21, 31) having control over the AP, and, by referring to the correspondence relationship, generates an NCoA of a subnet which is the destination of movement in L2 handover between different subnets, does not change an NCoA and executes only the L2 handover in the L2 handover in the same subnet, and performs a conventional fast handover when there is no correspondence relationship relating to an AP at the destination of the L2 handover.

There is provided a method of assessing the quality of subsurface position data and wellbore position data, comprising: providing a subsurface position model of a region of the earth including the subsurface position data, wherein each point in the subsurface position model has a quantified positional uncertainty represented through a probability distribution; providing a wellbore position model including the wellbore position data obtained from well-picks from wells in the region, each well-pick corresponding with a geological feature determined by a measurement taken in a well, wherein each point in the wellbore position model has a quantified positional uncertainty represented through a probability distribution; identifying common points, each of which comprises a point in the subsurface position model which corresponds to a well-pick of the wellbore position data; deriving for each common point a local test value representing positional uncertainty: selecting some but not all of the common points and deriving a test value from the local test values of the selected common points; providing a positional error test limit for the selected common points; and comparing the test value with the test limit to provide an assessment of data quality.

A communication method based on a binary molecular communication model comprises the following steps: first, establishing a communication model based on a binary molecule, wherein after a nanometer machine at a sending side releases a molecule, the molecule carious out Brownian movement in a medium, and a probability density distribution function f(t) of the time required by a molecule moving from the nanometer machine at the sending side to a nano-meter machine at a receiving side distance d far from the nanometer machine at the sending side and a cumulative distribution function F(t) corresponding to the probability density distribution function are described in the description; second, designing a transmission mechanism between the nano-meter machine at the sending side and the nano-meter machine at the receiving mode, wherein, in the binary molecular communication model, molecules with different types are sent in order to represent bit 1 and 0 respectively; and third, implementing communication with high throughput and high efficiency in accordance with the transmission mechanism of the binary molecular communication model in the second step. The invention provides the communication method based on a binary molecular communication model, which has higher throughput and high communication efficiency.

The invention relates to a catalyst for removing hydrogen gas in carbonic oxide (CO) mixed gas by selective oxidation, which mainly solves the technical problems of low hydrogen gas removing rate and high CO loss rate in the prior art. The invention adopts the technical scheme that the catalyst comprises the following components (carrier, active component and assistant) metered by simple substances in percentage by weight of the catalyst: 0.003-1% of at least one active component selected from platinum metals, 0.005-15% of at least one assistant selected from alkali metal compounds, alkali earth metal compounds or transition metal compounds, and 84-99.5% of at least one carrier selected from aluminum oxide, silicon carbide, silicon oxide, molecular sieve, magnesium oxide, zirconium oxide or titanium dioxide, thereby preferably solving the problems in the prior art. The catalyst of the invention can be used for industrial production for removing the hydrogen gas in the CO mixed gas by the selective oxidation.

The invention provides a quantitative detection method and a reagent kit GSTP1 (Glutathione S-Transferase P1) methylation for predicting hepatic failure prognosis. The invention relates to quantitative detection for gene methylation, and in particular relates to a quantitative detection method and a reagent kit f GSTP1 (Glutathione S-Transferase P1) methylation for predicting hepatic failure prognosis. The reagent kit contains a reagent for extracting genomic DNA (Deoxyribonucleic Acid), a reagent for modifying the genomic DNA, a 5x premixing PCR (Polymerase Chain Reaction) system, a standard substance, positive and negative control, a methylation-specific primer pair aiming at a target gene GSTP1 promoter, a specific primer pair of a reference gene ALU-C4, and a corresponding Taqman fluorescent probe. By extracting peripheral blood genomic DNA and carrying out real-time fluorescence quantitative PCR, a quantitative value of the gene GSTP1 methylation is obtained through calculation. The reagent kit provided by the invention can help doctors to determine the pathogenetic condition and prognosis of hepatic failure patients so as to make effective treatment plans.

The invention relates to a method for extracting earthworm protein and lumbrokinase from earthworms. The method is characterized by utilizing an approach to combining chromatographic columns with ultrafiltration for extracting the lumbrokinase and earthworm protein from the earthworms. According to the method, a radio-frequency technique is utilized to achieve a protein extraction sterility mechanism, the appropriate temperature for occurrence of enzyme activity is controlled, and the method is safe, sanitary and free of pollution; by means of the differential control over the earthworm protein, extraction and separation of the earthworm protein are achieved, and batched production of the earthworm protein and lumbrokinase is facilitated.

The invention relates to a selective catalytic oxidative dehydrogenation method for CO mixed gas. According to the method, the technical problems of the prior art of low hydrogen desorption rate and high CO loss rate are solved. The method comprises the following steps of: treating a catalyst taking platinum metals as active components for 0.01-40 hours under a pretreatment gas atmosphere containing 1-100% oxygen and under the conditions of temperature at 100-400 DEG C, hourly space velocity at 100-10000 per hour and pressure at 0-2.0MPa, and then taking the CO mixed gas containing more than 0-10% of hydrogen as the raw material, and contacting the raw material with the catalyst through a reactor filled with the catalyst taking platinum metals as active components, under the conditions of mole ratio of oxygen to hydrogen in the raw material being (0.5-5):1, reaction temperature at 100-300 DEG C, hourly space velocity at 100-10000 per hour and reaction pressure at -0.08-5.0MPa, thereby hydrogenating the hydrogen in the reacted effluent into water. According to the technical scheme, the problems are more efficiently solved. The method is suitable for the industrial production of oxidative dehydrogenation of the CO mixed gas.

A communication system is provided which includes a first communication device for transmitting a plurality of packets in different packet sizes, and a second communication device having a reception unit for receiving over one or more links packets transmitted from the first communication device, and a calculation unit for calculating a packet loss rate for each packet size based on reception result of the reception unit. The communication system estimates a bit error rate during link transmission of the packets from a difference of the packet sizes of the packets transmitted from the first communication device as well as from the packet loss rate for each packet size calculated by the calculation unit.

Disclosed are yeast-based immunotherapeutic compositions, hepatitis B virus (HBV) antigens, and fusion proteins for the treatment and/or prevention of HBV infection and symptoms thereof, as well as methods of using the yeast-based immunotherapeutic compositions, HBV antigens, and fusion proteins for the prophylactic and/or therapeutic treatment of HBV and/or symptoms thereof.

The invention provides a suitable machine picking group construction method of dripping irrigation cotton fields in Tarim Basin of South Xinjiang. The method comprises the steps of variety selection, plant row spacing and density configuration, irrigation and fertilizer application of cotton fields with different growing conditions, mepiquat chloride using method formulation and the like. A cotton variety constructed by a machine picking dripping irrigation cotton field group is put forward. The growth period is 131-136 days. The group has a rapid sensitivity to a defoliant; particularly, several days after spraying the defoliant, the leaf defoliation rate of the cotton field group is up to 91.2-94.5 %; the leaf inclination angle in the variety setting period is 46.5-65.1 degrees; the internode distance of fruit branches is 7-12 cm; the leaf size is medium and small; bracts are small; cotton leaves are good, and fluffs on the back of the cotton leaves are few; the ground clearance of cotton bolls at the lowermost portion of cotton plants is 18.0-22.0 cm; the covering of mulching films, and the planting mode of wide and narrow row or equal row spacing are used while planting. According to the method, not only are the leaf defoliation rate of the cotton leaves, the picking net rate of the machine picking, the fiber length of processed ginned cotton, the fiber strength of the processed ginned cotton and the picking efficiency increased, but also the loss rate of the machine picking and the impurity rate of seed cottons are reduced, and the production requirements are completely met.