18 results about "Quality control" patented technology

A network quality control system includes a user control console to probe, calculate, and display the quality of an enterprise's network connections to remote SNMP managed devices supporting real-time services like VoIP. Traceroute-like messages are sent to each remote SNMP managed device to report on the path, and hop latency, jitter, and packet losses. MOS scores are computed to indicate performance with a variety of available codec's. Empty test packets used simply to probe network quality are not used. Instead, SNMP messages that carry valuable information or commands for other purposes are gleaned of timing information so the MOS quality scores can be calculated in background.

The invention discloses a double DSP embedded type welding process visual feedback control system for welding seam tracking and welding quality control in welding automation, comprising a DSP image processing module, a DSP feedback control module, a power and reset module, a visual interface module, an analog video coding module and a USB control module. The DSP image processing module extracts the eigenvalues of a welding region image transmitted from the video interface module and transmits to the DSP feedback control module, the DSP feedback control module outputs corresponding signals according to the eigenvalues, and finishes close-loop control of welding seam tracking and welding quality. By this invention, welding seam tracking and welding seam shaping control can be carried out without a host computer.

The invention discloses a product quality control method based on a process network model and a machine learning algorithm. According to the method, product quality control is realized in a mode of fusing a product process complex network and a machine learning algorithm, namely, a quality transmission complex network is established based on a product process mechanism, a machine learning XGBoost model is established based on the quality transmission network and sample data and trained, and an SHAP algorithm model is established to analyze an XGBoost training result. Key process parameters influencing quality are quantitatively mined, and the linkage effect among the process parameters is accurately calculated. The method has the advantages that a product process mechanism and a big data analysis method are effectively combined, so that the problems of high dimension, strong nonlinearity and non-uniform sample distribution of industrial actual production data, which cannot be solved by a common statistical analysis method, are effectively solved, and the defect that a traditional product quality control method carries out qualitative description or only carries out product quality control for a single independent factor is overcome; and the method can comprehensively and quantitatively analyze the influence of complex process factors in the whole process of product processing on the final product quality and accurately calculate the linkage influence among the process factors to form a quality identification model based on process mechanism and data dual drive, and is large in processing data volume, high in speed and accurate in evaluation result.

There are provided systems and methods for automated cell processing of biological samples, such as cells for use in cell therapy and regenerative medicine. Systems for automated processing of batchesderived from biological samples comprise: a closed and sterile enclosure; a plurality of reagent containers; at least one reagent dispenser; a quality control module for analyzing at least one characteristic of a batch; a harvesting module; a robotic module; and a control unit (CU) communicatively coupled to the at least one reagent dispenser, the quality control module, the harvesting module andthe robotic module for controlling the automatic processing of batches. The automatic processing may be executable without handling by a human operator. The system may be configured to automaticallyprocess the plurality of batches without cross-contamination between batches, e.g., under GMP conditions.

The invention discloses a test strip for detecting an organophosphorus pesticide and application thereof. The test strip comprises a sample absorption pad (1), a conjugate release pad (2), a reactionfilm (3), a water absorbent pad (4) and a bottom plate (7), and the reaction film comprises a detection line (5) coated with an organophosphorus pesticide hapten-carrier protein conjugate and a quality control line (6) coated with a goat anti-mouse antibody, the conjugate release pad (2) is sprayed with an organophosphorus pesticide monoclonal antibody-colloidal gold label. The invention also provides a method for detecting organophosphorus pesticide residues in crops such as vegetables and fruits by using the test strip for detecting the organophosphorus pesticide. The test stripn has the characteristics of simple operation, high sensitivity, fast detection speed and low cost, and is suitable for screening and on-site monitoring of a large number of samples.

The invention relates to the field of medical checkup quality control, and concretely relates to a liquid composite protective agent for long-term culture preservation, and a preparation method and an application method thereof. The liquid composite protective agent for long-term culture preservation is prepared from the following components according to 100mL of solution agent: 15 to 20mL of ethylene glycol, 10 to 15mL of glycerinum, 0.5 to 1g of nutrient bouillon, 0.3 to 0.8g of trehalose, 0.1 to 0.5g of brain infusion powder, and the balance distilled water. The liquid composite protective agent for long-term culture preservation provided by the invention has good protection on various bacteria cultures, can ensure the activity of the cultures at the temperature being minus 20 DEG C and below after being mixed with the cultures, cannot affect the biochemical characters of microorganisms, has no need to be freeze-dried, redissolved and preserved in dark, and is convenient to use and operate in clinic bacterial detection. The cultures protected by the liquid composite protective agent provided by the invention can stably survive for more than 1 year at the temperature being minus 20 DEG C, and stably survive for more than 10 years at the temperature being minus 70 DEG C, so that great convenience is provided for the long-term preservation of special cultures.

The invention discloses a roadbed filler compaction quality control method and system. The method comprises the following steps: acquiring compaction target information; drawing a dry density-mass moisture content relation curve graph according to the compaction target information; according to the dry density-mass moisture content relation curve graph, generating quality controllable data; and executing quality control operation through the quality controllable data. The method solves the problems that according to an existing compaction method and standard, the index values such as the mass moisture content, the dry density/compaction degree or the rigidity of compaction filler are controlled, the indexes cannot represent the unsaturated state, therefore roadbed design, compaction construction and normal service lack unsaturated soil theoretical correlation, it cannot be really and effectively guaranteed that the compaction characteristic meets design targets and service requirements such as post-construction volume change and water-force performance in the service period, space-time variability of compaction energy, filler physical states (types, gradation and the like) and the like in the field compaction process is not considered, and compaction quality evaluation indexes still need to be further improved.

The invention discloses a high performance liquid chromatographic analysis method of benzoic acid and sorbic acid in toothpaste and belongs to the technical field of analysis. High performance liquidchromatography is adopted to respectively detect a blank sample, a sample solution and a standard curve solution, and the blank sample, a standard curve, a sample, a sample and a standard curve are sequentially detected (notes: the number of feeding the sample between the two standard curves should not exceed 15, and a quality control sample or a standard curve needs to be added therebetween if the number exceeds 15). The method can quantitatively analyze content of benzoic acid and sorbic acid in a toothpaste sample quickly and accurately and can be used by market regulatory authorities for monitoring quality of commercially available toothpaste products. The method has the advantages of accurate detection result and reliability.

The invention discloses an entire process quality control threshold value and early warning system and an entire process quality control threshold value and early warning method. The method comprises the following steps that: a teaching end receives evaluation contents input by a user; the teaching end transmits the evaluation contents to a plurality of learning end; each learning end performs feedback on the evaluation contents to obtain fed-back process data; each learning end transmits the process data to a cloud server; the cloud server performs analysis processing on the process data by utilizing a data mining technology, and transmits a processing result to the teaching end; and the teaching end displays the processing result, wherein the cloud server comprises a quality control threshold value and early warning module which transmits early warning information when a real-time processing result obtained according to the process data exceeds a set quality control threshold value. By the system and the method, the massive learning process data information of learners can be processed, a teacher and an educational leader can be helped to improve teaching and learning in real time, and the teaching and learning data information of school education can be monitored in real time.

The invention provides transnational supply chain distribution and sales management and a quality control method thereof. A transnational supply chain is managed via an Internet and electronic commerce technology so that efficiency is enhanced and quality control is performed throughout the whole supply chain. Problems of increment of cost, untruthful information, legal liability, etc. caused by too many intermediate links are solved, logistics cost is reduced, product quality is enhanced, trust degree of both parties in transaction is enhanced, trade efficiency is enhanced and transnational trade and local brand sales services are provided for small and medium-sized enterprises via technologies that the intermediate links are reduced, overseas virtual companies are established, third party logistics is used, data information and test reports are implanted into products, characteristic business platforms are established, etc.

The invention belongs to the field of analytical chemistry, and particularly relates to a method for separating and determining a calcipotriene starting raw material A and related impurities. According to the method, elution is performed by using a silica gel as a stationary phase and using the mixed solution of n-hexane and isopropanol as a mobile phase. With the method of the present invention,the calcipotriene starting material A and the impurities thereof can be effectively separated; the separation determination can be performed by using high efficiency liquid chromatography, such that the effective separation can be achieved, and the contents of the calcipotriene starting material A and various impurities thereof can be accurately determined; and the method has advantages of strongspecificity and high sensitivity, and can provide the extremely important significance for the quality control and the safety assurance of the calcipotriene starting material A.

The invention discloses a method for preparing erlotinib. The method comprises the following steps: mixing compounds of formula I, formula II and formula III as shown in the specification, and performing a reaction on the three compounds, thereby obtaining erlotinib. The method is short in reaction step, simple and convenient to operate, convenient in quality control, relatively high in yield and relatively low in cost.

The invention provides a steel support pressurizing member. The steel support pressurizing member is characterized by comprising a first unit used for being connected with a first steel support, a second unit adopting the same structure as the first unit and used for being connected with a second steel support adjacent to the first steel support, and a connecting plate used for being connected with the upper ends and/or the lower ends of the first unit and the second unit, wherein a gap allowing a pressurizing part for exerting pressure onto the first unit and the second unit to be placed therein is formed between the first unit and the second unit. A standard member is manufactured by use of the characteristics of high material strength and reliable performance, section steel combined members can be assembled at any time according to deformation requirements of a foundation pit, supporting rod pieces are definitely stressed, a large contact area ensures that all the members are in uniform contact and are vertically stressed after the supporting rod pieces exert pre-stresses, and the technical quality control requirements are satisfied.

The invention relates to a gene chip for detecting transgenic plants and products containing screened gene NOS, belonging to the technical field of biological engineering. The chip comprises a glass slide with an aldehyde group modified surface, a screened gene NOS probe coated on the glass slide in an array mode, and a positive control, a hybridization positive control, a positive quality control probe, a negative quality control probe and a blank control which are fixed by nucleic acid, wherein the sequence of the screened gene NOS probe is NH2-(CH2)6-O-Poly (dT)15-AAGCATGTAATAATTAACATGTAATGCATGACGTTATTTA. The gene chip for detection of the screened gene NOS of the transgenic plants and the products of the invention can carry out specific detection on the screened gene NOS of the transgenic plants and the products thereof and has high specificity.

The invention relates to an electrochemical quantitative detection test strip with hollow gold and silver nanospheres, which comprises a supporting pad and a test paper sheet. A first electrode is fixed at one end of the upper surface of the supporting pad; a nitrocellulose membrane connected with the side wall of the test paper sheet is fixed at the other end of the upper surface of the supporting pad; spoilers are arranged at the side edges of the upper edges of the end faces of the test paper sheet and the nitrocellulose membrane; a sample pad and a combination pad are respectively arrangedon the upper surface and the inclined plane of the test paper sheet, which are positioned inside the spoiler; a test line, a water absorption pad and a quality control line are arranged on the uppersurface of the nitrocellulose membrane, which is positioned inside the spoiler; and a second electrode is arranged at the side edge of the nitrocellulose membrane, which is positioned outside the spoiler. According to the invention, an electrochemical signal is obviously changed, and evaluation on concentration by an electrochemical intensity detection method is implemented, so that accuracy of detection is improved. The electrochemical quantitative detection test strip has the advantages of low cost, rapidness, simplicity, convenience, sensitivity, good repeatability and the like.