Latest ArticlesTraditional textile testing methods have problems of subjectivity and inefficiency, and the testing method based on artificial intelligence technology provides a new way to solve these problems. This paper first summarizes the traditional textile inspection methods, including visual inspection, manual inspection and traditional machine vision inspection technology. Then, the textile testing and analysis methods based on artificial intelligence technology are introduced, including data acquisition and preprocessing, feature extraction and selection, testing model design and training, and testing result analysis and evaluation. Through the application of artificial intelligence technology, the automation, efficiency and accuracy of the textile testing process can be achieved, which brings new possibilities for the quality control and production optimization of the textile industry. Experimental results show that the detection accuracy of the proposed method is improved by 23.5% compared with the traditional method. Therefore, the textile testing method based on artificial intelligence technology can be widely promoted and applied in practice.
Objective The color analysis equipment "plasma colorimeter" developed by customization was used to analyze the color of plasma prepared by whole blood composition, summarize the color parameter range of normal, reddish and chyle plasma, and explore the feasibility of formulating quantitative standards for plasma appearance. Methods The collected 2U whole blood was randomly selected, the same amount of normal, reddish and chyle plasma was separated and prepared, the proportion of parameters of red, green and blue in the appearance of plasma was collected by plasma colorimeter, the laws of each parameter were summarized by statistical methods, and the differences between the three plasma parameters were compared. Results Between normal plasma and reddish plasma, the proportion of parameter red was significant different (P>0.05), while those of parameter green and parameter blue were not significant different (P<0.05); Between normal plasma and chyle plasma, the difference of proportion of parameter green was significant (P>0.05), those of parameter red and blue are not significant (P<0.05). Between normal plasma and reddish plasma, the proportions of red, green and blue in reddish plasma and chyle plasma were all significantly different (P<0.05) Conclusions The quantitative values of color in plasma appearance can be obtained by using plasma colorimeter, and these values can provide a basis for digital and accurate judgment of plasma appearance, further to effectively improving the efficiency of blood station work.
Recombinant collagen dressings are currently a popular skin care product in the market, which can form a protective layer on the wound and act as a physical barrier. Used for the care of non chronic wounds (such as superficial wounds, laser/photon/fruit acid skin replacement/micro plastic surgery wounds), providing a microenvironment for wound healing. The detection of recombinant collagen protein in application products is one of the reliable indicators to ensure product quality. This article investigates the applicability of the identification method for a recombinant collagen liquid dressing. The applicability of a identification method for a recombinant collagen liquid dressing was studied. Peptide map method, $\mathrm{N}$ -terminal amino acid sequence method, and isoelectric focusing electrophoresis method were used to identify the recombinant collagen in the experimental sample, and the detection results showed that the peptide map method and N-terminal amino acid sequence method were applicable to the sample. However, the isoelectric focusing electrophoresis method did not detect any bands, so this method is not applicable. When choosing the identification method for recombinant collagen, enterprises should consider the actual situation of the product and adopt appropriate methods.
Fluorescence probe technology refers to a technical means of labeling the substance to be measured with fluorescence probe, enabling qualitative and quantitative analysis of the measured substance. Fluoride ion is one of the important trace elements in human body, proper intake of fluoride ion can help prevent tooth decay and osteoporosis, while excessive intake of fluoride ion can cause a variety of diseases. Therefore, it is of great significance to develop fluorescence probes that can detect fluoride ions in organisms. The latest scientific research results were converted into comprehensive designing experiment "the synthesis of fluorescence probe and detection of fluorine ions in aqueous phase". Through the implementation of the experiment, the students' ability of organic synthesis, the operation of optical analytical instruments and the analysis of experimental data will be greatly improved.
Objective Comparing two detection methods for chlamydial trachomatis in the genital tract (GeneXpertⓇ CT/NG and Roche® Cobas 4800 CT/NG), we summarize their respective advantages and disadvantages to provide references for the promotion and application of these two methods. Methods During a field survey conducted in a sample hospital, a convenience sampling method was employed to select 60 patients. Vaginal swabs were collected from these patients for testing using the GeneXpert® CT/NG system, while urine samples were collected for testing with the Roche® Cobas 4800 CT/NG system. Staff members were tasked with recording and compiling data related to the testing process, including the time taken for testing, the cost of testing, and the positive detection rates. This data was then used to compare the two testing methods. Results The testing time for Roche® Cobas 4800 CT/NG is 293 minutes, while the testing time for GeneXpertⓇ CT/NG is 92.95 minutes. In other words, the testing time for Roche® Cobas 4800 CT/NG is 3.15 times longer than that of GeneXpert® CT/NG; When the number of tests conducted in the sample hospital reaches 3000 cases, the cost of Roche® Cobas 4800 CT/NG testing is approximately 1/5 of that of GeneXpert® CT/NG testing. As the number of tests increases, when the volume reaches 200,000 cases, the unit cost of Roche® Cobas 4800 CT/NG testing is approximately 1/3 of the unit cost of GeneXpert® CT/NG testing; Among the 60 participants in this study, 11 cases of CT positive patients were detected by GeneXpert® CT/NG, with a CT positive rate of 0.183. Roche®Cobas 4800 CT/NG detected 10 cases, with a CT positive rate of 0.167. Conclusion The GeneXpert® CT/NG test has a significant time advantage, as it takes less time and provides faster results; The Roche® Cobas 4800 CT/NG test has a cost advantage, with lower detection costs; The GeneXpert® CT/ NG test has a higher positive detection rate.
Objective To establish the method of microbial limit test of Fufang Huangliansu tablets. Methods According to the provisions of Part Four of the 2020 edition of the Pharmacopoeia of the People's Republic of China, the applicability test of microbial limit testing methods shall be gradually carried out using methods such as plate pouring method, increasing dilution ratio, and dilution combined with membrane filtration. Results The membrane filtration method was used for aerobic bacteria counting. The medium dilution method was used for counting total combined molds and yeasts. The direct inoculation method was used for three types of control bacteria that must be tested according to drug standards. Conclusion The microbiological limit test method for this drug proposed in this experiment is simple and easy to implement.
Inter-cresol is a common environmental pollutant and industrial raw material, and its sensitive, accurate and rapid detection is crucial for environmental monitoring and food safety. Molecularly imprinted polymers (Molecularly Imprinted Polymers, MIPs) have shown an attractive application prospect in improving the detection method due to their unique molecular recognition ability. This paper systematically discusses the application of MIPs technology in improving detection sensitivity, simplifying sample processing and enhancing selective identification, and puts forward a series of innovative imprinting strategies and detection schemes, in order to provide new ideas and methods for solving the current technical bottleneck in parcresol detection.
Drug testing is a professional work, which contains many details, any link will affect the efficiency and quality of the overall work. High performance liquid chromatography (HPLC) has the characteristics of high sensitivity, short test time and wide application range. Its application in drug testing can improve the shortcomings of traditional testing techniques and make the test results more reliable and accurate. This paper first describes the concept of high performance liquid chromatography, then analyzes the characteristics of high performance liquid chromatography, including short detection time, high sensitivity and wide application range, and then analyzes the value of practicing high performance liquid chromatography in drug testing, including timely detection of drug processing problems, ensuring drug safety, and promoting the improvement of drug testing technology. Finally, the application of high performance liquid chromatography in drug testing was discussed.
Objective Measurement uncertainty is a parameter closely related to the measurement results and is indispensable for the quality control of laboratory data. In this paper, we analyze the source of the uncertainty of sulfur dioxide emission concentration in the exhaust of fixed pollution sources, find out the various uncertainty components affecting the measurement results, and conduct the analysis and evaluation of the measurement uncertainty, so as to provide an important reference for the analysis and judgment of the accuracy of environmental monitoring data and calibrate the results. Methods The concentration of sulfur dioxide emission in fixed pollution waste gas is measured according to UV absorption method. Results The extended uncertainty of the resulting determination was 6.9%. Conclusion The uncertainty component introduced by the instrument system effect is relatively large. In addition to regular sending to the technical supervision department for verification, the user of the instrument should also carry out regular maintenance and necessary period verification to ensure the accuracy of the instrument and the repetition of the measurement.
Promethazine hydrochloride has good effects on skin, ear, nose, and throat, as well as internal medicine diseases. Therefore, it is widely used in clinical pediatrics. Due to its large size, the use of this drug in clinical pediatric medicine is limited to some extent. Excessive content of promethazine hydrochloride tablets can easily cause adverse reactions, so it is necessary to analyze the content of promethazine hydrochloride tablets in order to adjust the medication deviation. High performance liquid chromatography can combine pharmacokinetics to analyze the actual content of drugs. With its advantages of high sensitivity and specificity, it has been widely applied in drug analysis in recent years. High performance liquid chromatography is based on the application scope of drugs, forming a comprehensive chromatographic drug analysis plan, timely adjusting chromatographic phase changes, and conducting scientific evaluations to enhance separation efficiency and accurately determine drug content, in order to optimize the application of drug components in high-performance liquid chromatography analysis. This study mainly reviews the research on the determination of the content of promethazine hydrochloride tablets in children's medication by high-performance liquid chromatography, in order to provide reference for the rational use of drugs in pediatric clinical practice.