68results about How to "Reflect quality" patented technology

The invention discloses a method for measuring the downlink packet loss rate of an access link of a broadband network user. The method comprises the following steps: A. selecting any intermediate node between a server side and a client side as a measuring point; B. analyzing a TCP (transmission control protocol) message which is received by the measuring point and sent to the client side by the server side, carrying out statistics on heading information of the TCP message and predicating the serial number of the next TCP message to be received by the measuring point according to the serial number and effective load length information carried by the TCP message; and C. when the next TCP message is coming, comparing the serial number of the coming TCP message with the predicted serial number of the TCP message to judge whether packet loss happens and whether the link of the packet loss happens on the server side or client side access link, and finally obtaining the downlink packet loss rate index of the user. The method can acquire communication flow between the user and the Internet on any intermediate node of the local side, compute the downlink packet loss rate index of the access link of the user by analyzing the flow, and provide support means for operation, quality guarantee and fault diagnosis of the broadband network.

The invention relates to a quality determination method of peanuts for peanut sprouts and an evaluation method thereof. The method comprises the following steps: measuring nuts weight, nut diameter, water content, crude protein content, polysaccharide content, crude fat content, three-day weight gain rate and crude fiber content of peanuts to be determined; introducing above measured values into a formula to obtain quality comprehensive score Y overall rating of the peanuts for peanut sprouts. According to the formula, the Y overall rating= 2.3160709-0.00898 * nuts weight + 0.01935 * crude protein content- 0.01062 * nut diameter + 0.01285 * water content + 0.04051 * polysaccharide content + 0.0906 * crude fat content + 0.02156 * three-day weight gain rate + 0.02708 * crude fiber content. By the quality determination method and the evaluation method, whether a peanut variety is suitable for production of peanut sprouts can be predicted. The analytical method is simple and has degree of standardization. It is confirmed through model validation that whether the peanut variety is suitable for production of peanut sprouts is reflected objectively and accurately. The method is simple and feasible in production practice.

The present invention provides Polygonum cephalum medicinal material, which has an HPLC fingerprint as shown in Figure 1D, containing 13 characteristic peaks, wherein the chromatographic conditions are: chromatographic column: Elite Hypersil ODS chromatographic column (4.6mm × 150mm, 5 μm) ;Column temperature: 25°C; Mobile phase: acetonitrile (A)-0.4% phosphoric acid (B) solution binary gradient elution, weight percentage: 0-30%: 100-70%; flow rate: 0.8mL min-1 ; Detection wavelength: 310nm; Injection volume: 20μl. The invention also provides the extract and its quality control method. The quality control method of the present invention investigates and compares Polygonum cephalosporins from different origins, constructs the HPLC fingerprints of Polygonum cephalosporins, and uses the HPLC fingerprint features to comprehensively monitor the quality of Polygonum cephalosa medicinal materials to ensure that it is stable, uniform, controllable, and effective. Control the quality of medicinal materials accurately, and achieve the purpose of controlling the entire pharmaceutical preparation.

The invention discloses a channel searching device and method for a broadcasting receiver. The channel searching device comprises a channel switching module, an automatic gain control module, an automatic frequency control module, a received signal strength estimation module, a received signal quality estimation module, a demodulated signal quality estimation module and a judgment module, wherein the output end of the channel switching module is connected with the input end of the automatic gain control module; the output end of the automatic gain control module is connected with the input end of the automatic frequency control module; the output end of the automatic frequency control module is connected with the input ends of the received signal strength estimation module, the received signal quality estimation module and the demodulated signal quality estimation module; and the output ends of the received signal strength estimation module, the received signal quality estimation module, the demodulated signal quality estimation module and the automatic frequency control module are connected with the judgment module. The channel searching device and method for a broadcasting receiver can preferably reflect the strength and quality of the wanted signal in a channel and the quality of the demodulated signal, maintain the optimal gains input from radio frequency to demodulation, improve the estimation accuracy on the strength, quality and signal-to-noise ratio of the received signal, improve the estimation accuracy on the number of the quality burrs of the demodulated signal, and realize rapid and effective channel searching.

The invention discloses a system for simulating a smoker's organ to absorb main stream smoke during smoking, which is characterized by comprising a cigarette holder, a roller rotating type simulated oral cavity inhaled smoke absorbing device, a single channel smoking machine, a three-way adjusting valve for controlling the ratio of exhaled smoke to flow across the oral cavity and the nasal cavity, a roller rotating type simulated oral cavity exhaled smoke absorbing device, a device for simulating water soluble components in nasal cavity absorbed smoke, a device for simulating fat soluble components in the nasal cavity absorbed smoke, a stepless speed adjustment motor, a power transmission mechanism and a smoke outlet. The system for simulating the smoker's organ to absorb the main stream smoke during smoking is arranged in an integral type constant temperature cover. The system can be used for accurately simulating the biophysical process and the biochemical process of tobacco smoked by human and the main stream smoke flowing across the oral cavity and the nasal cavity, and the process of the smoke flowing across human body can be researched more deeply and accurately.