With the rapid development of modern information technology,the Internet of Things(IoT)has been integrated into various fields such as social life,industrial production,education,and medical care.Through the connectio...With the rapid development of modern information technology,the Internet of Things(IoT)has been integrated into various fields such as social life,industrial production,education,and medical care.Through the connection of various physical devices,sensors,and machines,it realizes information intercommunication and remote control among devices,significantly enhancing the convenience and efficiency of work and life.However,the rapid development of the IoT has also brought serious security problems.IoT devices have limited resources and a complex network environment,making them one of the important targets of network intrusion attacks.Therefore,from the perspective of deep learning,this paper deeply analyzes the characteristics and key points of IoT intrusion detection,summarizes the application advantages of deep learning in IoT intrusion detection,and proposes application strategies of typical deep learning models in IoT intrusion detection so as to improve the security of the IoT architecture and guarantee people’s convenient lives.展开更多
[Objective] The aim was to explore technology on processing feces in duck farms at scale, providing guiding method for effective control of environmental issues in breeding farms. [Methed] Bio-safety disposal and reco...[Objective] The aim was to explore technology on processing feces in duck farms at scale, providing guiding method for effective control of environmental issues in breeding farms. [Methed] Bio-safety disposal and recovering processing of excrements in a duck farm were researched based on technology of configuration, detection, digestion, EM and poultry breeding. [Result] The integrated application technology is quite simple and the cost is not high. During breeding period, excellent organic fertilizers and high-protein forages could be obtained without any antibiotics. Furthermore, secondary wastes and pollution would not occur. In addition, ammonia was lower in excrements processed with earthworm and air pollution was reduced; the produced humus provided organic fertilizers and improved barren soils. [Conclusion] The research provides references of multi-technology integration for related industries.展开更多
Based on radon gas properties and its existing projects applications, we firstly attempted to apply geo- physical and chemical properties of radon gas in the field of mining engineering, and imported radioac- tive mea...Based on radon gas properties and its existing projects applications, we firstly attempted to apply geo- physical and chemical properties of radon gas in the field of mining engineering, and imported radioac- tive measurement method to detect the development process of the overlying strata mining-induced fractures and their contained water quality in underground coal mining, which not only innovates a more simple-fast-reliable detection method, but also further expands the applications of radon gas detection technology in mining field. A 3D simulation design of comprehensive testing system for detecting strata mining-induced fractures on surface with radon gas (CTSR) was carried out by using a large-scale 3D solid model design software Pro/Engineer (Pro/E), which overcame three main disadvantages of ''static design thought, 2D planar design and heavy workload for remodification design'' on exiting design for mining engineering test systems. Meanwhile, based on the simulation design results of Pro/E software, the sta- bility of the jack-screw pressure bar for the key component in CTSR was checked with a material mechan- ics theory, which provided a reliable basis for materials selection during the latter machining process.展开更多
Signals from infrared detector are very weak in SO2 concentration measuring system.In order to improve the sensitivity of detection,combining with filter correlation technology and infrared absorption principle,the we...Signals from infrared detector are very weak in SO2 concentration measuring system.In order to improve the sensitivity of detection,combining with filter correlation technology and infrared absorption principle,the weak signal processing circuit is designed according to correlation detection technology.Under laboratory conditions,system performance of SO2 concentration is tested,and the experimental data are analyzed and processed.Then relationship of SO2 concentration and the measuring voltage is provided to prove that the design improves measuring sensitivity of the system.展开更多
Atrial fibrillation (AF) is the most common chronic arrhythmia in clinical practice, which can cause high disability and mortality with the progress of the disease. Many studies at home and abroad have shown that the ...Atrial fibrillation (AF) is the most common chronic arrhythmia in clinical practice, which can cause high disability and mortality with the progress of the disease. Many studies at home and abroad have shown that the incidence of atrial fibrillation gradually increases with age. Clinically, the onset of most AF patients is insidious, which is difficult to capture by routine electrocardiogram, and there is some difficulty in the diagnosis. In order to make the early diagnosis of atrial fibrillation more efficient and accurate, this paper reviews the current status and research progress of detection technology for atrial fibrillation at home and abroad, in order to provide a scientific basis for the early diagnosis of atrial fibrillation.展开更多
Currently,there is significant attention placed on the construction,management,and maintenance of large service bridges.Within the realm of bridge maintenance management,the utilization of detection and monitoring tec...Currently,there is significant attention placed on the construction,management,and maintenance of large service bridges.Within the realm of bridge maintenance management,the utilization of detection and monitoring technology is indispensable.By employing these technologies,we can effectively identify any structural defects within the bridge,promptly uncover unknown risks,proactively establish maintenance strategies,and prevent the rapid deterioration of bridge conditions.This article aims to explore the advantages of applying bridge monitoring and testing technology and to discuss various methods for implementing detection and monitoring technology throughout the construction,management,and maintenance phases of large bridges.Ultimately,this will contribute to ensuring the safe operation of large bridges.展开更多
Gravitational wave detection has ushered in a new era of observing the universe, providing humanity with a novel window for cosmic cognition. This theoretical study systematically traces the developmental trajectory o...Gravitational wave detection has ushered in a new era of observing the universe, providing humanity with a novel window for cosmic cognition. This theoretical study systematically traces the developmental trajectory of gravitational wave detection technology and delves into its profound impact on cosmological research. From Einstein’s prediction in general relativity to LIGO’s groundbreaking discovery, the article meticulously delineates the key theoretical and technological milestones in gravitational wave detection, with particular emphasis on elucidating the principles and evolution of core detection technologies such as laser interferometers. The research thoroughly explores the theoretical application value of gravitational waves in verifying general relativity, studying the physics of compact celestial bodies like black holes and neutron stars, and precisely measuring cosmological parameters. The article postulates that gravitational wave observations may offer new research perspectives for addressing cosmological conundrums such as dark matter, dark energy, and early universe evolution. The study also discusses the scientific prospects of combining gravitational wave observations with electromagnetic waves, neutrinos, and other multi-messenger observations, analyzing the potential value of this multi-messenger astronomy in deepening cosmic cognition. Looking ahead, the article examines cutting-edge concepts such as space-based gravitational wave detectors and predicts potential developmental directions for gravitational wave astronomy. This research not only elucidates the theoretical foundations of gravitational wave detection technology but also provides a comprehensive theoretical framework for understanding the far-reaching impact of gravitational waves on modern cosmology.展开更多
Water quality monitoring is a process of evaluating water quality, including monitoring and measuring the trend, concentration and water body change of various pollutants. The organization and implementation of import...Water quality monitoring is a process of evaluating water quality, including monitoring and measuring the trend, concentration and water body change of various pollutants. The organization and implementation of important water quality monitoring will provide representative, accurate, comparable and complete data for governments at all levels, timely feedback the monitoring results to relevant ministries and commissions, and provide scientific and theoretical basis for governments at all levels to make water pollution prevention and control decisions.展开更多
With the rapid development of economy, certain environmental pollution is inevitably caused, among which sewage discharge causes water pollution. In the process of industrial development, heavy metals have certain ris...With the rapid development of economy, certain environmental pollution is inevitably caused, among which sewage discharge causes water pollution. In the process of industrial development, heavy metals have certain risk of exceeding the standard in water environment. Therefore, in the field of chemical industry, the detection method with certain advanced technology content is applied. This paper expounds and analyzes the laboratory detection technology and on-site investigation measures.展开更多
In order to ensure the healthy growth of agricultural products and provide food for more people, the use of pesticides is essential. If the pesticide residue on food is too much, it will cause certain potential food s...In order to ensure the healthy growth of agricultural products and provide food for more people, the use of pesticides is essential. If the pesticide residue on food is too much, it will cause certain potential food safety hazard. After eating the food contaminated by the residual agricultural products, the light condition is manifested as dizziness and vomiting, which may lead to poisoning and death. In order to strengthen the detection and identification of pesticide residues in agricultural products, it is necessary to strengthen the supervision and supervision of food safety testing. This article mainly analyzes and discusses the detection technology of pesticide residues in agricultural products and food safety detection for reference.展开更多
This article focuses on bridge testing technologies in highway construction and expansion projects.It provides an overview of the inspection process for bridges in highway reconstruction and expansion projects,the mai...This article focuses on bridge testing technologies in highway construction and expansion projects.It provides an overview of the inspection process for bridges in highway reconstruction and expansion projects,the main inspections,and strategies for improving the quality of inspections.Relevant units should conduct bridge inspections using appearance inspections,special inspections,and bearing capacity assessments in highway reconstruction and expansion projects.To effectively improve testing quality,relevant units should also focus on establishing and improving testing standards,strengthening material testing,and improving the overall quality of the testing personnel.This research aims to enhance the quality of highway reconstruction and expansion projects by supporting the sensible application of bridge inspection technology.展开更多
The foundation quality of construction engineering plays an important role in protecting the safety of users and improving the construction efficiency of superstructure. Nowadays, with the continuous development of bu...The foundation quality of construction engineering plays an important role in protecting the safety of users and improving the construction efficiency of superstructure. Nowadays, with the continuous development of building construction in China towards more beautiful and more floors, ensuring the quality of foundation has become the primary factor. Foundation construction is not only the first step of construction engineering, but also the key step. In order to ensure the quality of foundation construction and avoid building inclination or settlement caused by foundation problems, it is necessary to strictly grasp the quality links and ensure that the construction is completed in accordance with relevant standards. The application of foundation detection technology can ensure that the foundation quality meets the requirements of construction engineering and fundamentally improve the overall quality of construction engineering. Therefore, the application of foundation detection technology in construction engineering is of great significance. In this paper, the author deeply analyzes the key points of foundation detection technology of construction engineering and gives corresponding optimization countermeasures for reference to relevant construction units展开更多
In order to promote the stability of centrifugal pump units and maximize the role of centrifugal pumps, this paper analyzes the composition and basic working principle of centrifugal pumps, presents the main concerns ...In order to promote the stability of centrifugal pump units and maximize the role of centrifugal pumps, this paper analyzes the composition and basic working principle of centrifugal pumps, presents the main concerns of centrifugal pump maintenance, and finally investigates the common faults and maintenance methods of centrifugal pumps for reference.展开更多
In this paper,the application strategy of ultrasonic detection technology in the detection of concrete foundation piles is analyzed using a construction project as an example.It includes a basic overview of the projec...In this paper,the application strategy of ultrasonic detection technology in the detection of concrete foundation piles is analyzed using a construction project as an example.It includes a basic overview of the project,an overview of ultrasonic testing technology in bridge concrete pile foundation testing,and an analysis of its practical application in the concrete pile foundation testing of this project.The objective of this analysis is to provide some reference for the application of ultrasonic testing technology and the improvement of the quality of bridge concrete pile foundation testing.展开更多
The road traffic industry in China has been developing rapidly in recent years.Asphalt has become the main material in road construction because of its seamless connection and short construction period,and it has an i...The road traffic industry in China has been developing rapidly in recent years.Asphalt has become the main material in road construction because of its seamless connection and short construction period,and it has an important impact on the overall quality of highway construction.Therefore,it is necessary to conduct scientific and reasonable tests and detections for highway asphalt pavement.This paper presents a discussion on the test and detection technology of highway asphalt pavement for future reference.展开更多
Objective: to discuss and study the value of GeneXpert PCR detection technology in specific population in basic laboratory. Methods: from June 2020 to June 2021, 129 samples of tuberculosis sputum samples in the basic...Objective: to discuss and study the value of GeneXpert PCR detection technology in specific population in basic laboratory. Methods: from June 2020 to June 2021, 129 samples of tuberculosis sputum samples in the basic laboratory were included in the study. Smear detection method and GeneXpert PCR detection technology were used to detect and analyze these sputum samples successively, and the positive and negative detection rates of tuberculosis in the two detection methods were compared. The sensitivity, specificity and diagnostic consistency of the two methods were compared. Results: the positive rate of tuberculosis detected by GeneXpert PCR was significantly higher than that detected by smear, while the negative rate was significantly lower than that detected by smear (P<0.05). The detection sensitivity, specificity and diagnostic consistency of GeneXpert PCR were significantly better than that of smear (P<0.05). Conclusion: in the laboratory backlog crowd detection work, using PCR detection device instrument technology, can guarantee the overall detection diagnosis to a great extent, improve TB positive and negative detection rate, improve the diagnostic specificity, sensitivity, consistency, effective help medical researchers found that people with TB, promote the continuous positive development of the laboratory.展开更多
Infrared nondestructive test (IRT) technology as a new detection method, can detect materials, components, the internal defects of evaluate the stress state of materials and realize the rapid prediction of fatigue lif...Infrared nondestructive test (IRT) technology as a new detection method, can detect materials, components, the internal defects of evaluate the stress state of materials and realize the rapid prediction of fatigue life, the equipment running condition monitoring and fault diagnosis of infrared nondestructive testing technology are introduced in detail in this paper the principle of detecting leakage of external wall empty drum. Its advantages and application scope are also briefly described.展开更多
Medical detection technology-from biochemical analysis to medical imaging has witnessed tremendous progress in the past decades,driven by the breakthrough of biomedical and scientific theories,the innovation of engine...Medical detection technology-from biochemical analysis to medical imaging has witnessed tremendous progress in the past decades,driven by the breakthrough of biomedical and scientific theories,the innovation of engineering techniques,as well as the discovery of new contrast mechanisms.These substantial progresses have significantly promoted展开更多
In the aerospace field, residual stress directly affects the strength, fatigue life and dimensional stability of thin-walled structural components, and is a key factor to ensure flight safety and reliability. At prese...In the aerospace field, residual stress directly affects the strength, fatigue life and dimensional stability of thin-walled structural components, and is a key factor to ensure flight safety and reliability. At present, research on residual stress at home and abroad mainly focuses on the optimization of traditional detection technology, stress control of manufacturing process and service performance evaluation, among which research on residual stress detection methods mainly focuses on the improvement of the accuracy, sensitivity, reliability and other performance of existing detection methods, but it still faces many challenges such as extremely small detection range, low efficiency, large error and limited application range.展开更多
Pseudomonas aeruginosa is an opportunistic pathogen widely distributed in the natural environment,which can cause a variety of infections,especially in people with low immunity and high pathogenicity.In recent years,s...Pseudomonas aeruginosa is an opportunistic pathogen widely distributed in the natural environment,which can cause a variety of infections,especially in people with low immunity and high pathogenicity.In recent years,significant progress has been made in the detection technology of Pseudomonas aeruginosa,covering traditional methods,molecular biology techniques,immunological methods and automated detection systems.Traditional methods such as the national standard method and the filter membrane method are easy to operate,but have the problems of long time consuming and limited sensitivity.Molecular biological techniques(such as PCR,gene cloning)and immunological methods(such as ELISA,colloidal gold immunochromatography)have significantly improved the sensitivity and specificity of detection,but they require high equipment and technology,and are expensive.Automated detection systems,such as VITEK 2 Compact and AutoMS 1000 mass spectrometry identification system,are excellent in improving detection efficiency and accuracy,but their high cost and complex operation process limit their wide application.In addition,the resistance of Pseudomonas aeruginosa to bacteriostatic agents further increases the difficulty of detection.In this paper,the development and application of immunological detection technology,molecular biological technology and immunological technology of Pseudomonas aeruginosa were reviewed,and the principles,advantages,disadvantages and research progress of various detection technologies of Pseudomonas aeruginosa were described,and the future development trend was prospected,in order to provide reference for the optimization and development of detection methods of Pseudomonas aeruginosa.展开更多
基金the research result of the 2022 Municipal Education Commission Science and Technology Research Plan Project“Research on the Technology of Detecting Double-Surface Cracks in Concrete Lining of Highway Tunnels Based on Image Blast”(KJQN02202403)the first batch of school-level classroom teaching reform projects“Principles Applications of Embedded Systems”(23JG2166)the school-level reform research project“Continuous Results-Oriented Practice Research Based on BOPPPS Teaching Model-Taking the‘Programming Fundamentals’Course as an Example”(22JG332).
文摘With the rapid development of modern information technology,the Internet of Things(IoT)has been integrated into various fields such as social life,industrial production,education,and medical care.Through the connection of various physical devices,sensors,and machines,it realizes information intercommunication and remote control among devices,significantly enhancing the convenience and efficiency of work and life.However,the rapid development of the IoT has also brought serious security problems.IoT devices have limited resources and a complex network environment,making them one of the important targets of network intrusion attacks.Therefore,from the perspective of deep learning,this paper deeply analyzes the characteristics and key points of IoT intrusion detection,summarizes the application advantages of deep learning in IoT intrusion detection,and proposes application strategies of typical deep learning models in IoT intrusion detection so as to improve the security of the IoT architecture and guarantee people’s convenient lives.
基金Supported by Program from Education Department of Sichuan Province(112B115)~~
文摘[Objective] The aim was to explore technology on processing feces in duck farms at scale, providing guiding method for effective control of environmental issues in breeding farms. [Methed] Bio-safety disposal and recovering processing of excrements in a duck farm were researched based on technology of configuration, detection, digestion, EM and poultry breeding. [Result] The integrated application technology is quite simple and the cost is not high. During breeding period, excellent organic fertilizers and high-protein forages could be obtained without any antibiotics. Furthermore, secondary wastes and pollution would not occur. In addition, ammonia was lower in excrements processed with earthworm and air pollution was reduced; the produced humus provided organic fertilizers and improved barren soils. [Conclusion] The research provides references of multi-technology integration for related industries.
基金support for this work provided by the Fundamental Research Funds for the Central Universities(China University of Mining & Technology) (No. 2010ZDP02B02)the State Key Laboratory of Coal Resources and Safe Mining(No. SKLCRSM08X02)
文摘Based on radon gas properties and its existing projects applications, we firstly attempted to apply geo- physical and chemical properties of radon gas in the field of mining engineering, and imported radioac- tive measurement method to detect the development process of the overlying strata mining-induced fractures and their contained water quality in underground coal mining, which not only innovates a more simple-fast-reliable detection method, but also further expands the applications of radon gas detection technology in mining field. A 3D simulation design of comprehensive testing system for detecting strata mining-induced fractures on surface with radon gas (CTSR) was carried out by using a large-scale 3D solid model design software Pro/Engineer (Pro/E), which overcame three main disadvantages of ''static design thought, 2D planar design and heavy workload for remodification design'' on exiting design for mining engineering test systems. Meanwhile, based on the simulation design results of Pro/E software, the sta- bility of the jack-screw pressure bar for the key component in CTSR was checked with a material mechan- ics theory, which provided a reliable basis for materials selection during the latter machining process.
文摘Signals from infrared detector are very weak in SO2 concentration measuring system.In order to improve the sensitivity of detection,combining with filter correlation technology and infrared absorption principle,the weak signal processing circuit is designed according to correlation detection technology.Under laboratory conditions,system performance of SO2 concentration is tested,and the experimental data are analyzed and processed.Then relationship of SO2 concentration and the measuring voltage is provided to prove that the design improves measuring sensitivity of the system.
文摘Atrial fibrillation (AF) is the most common chronic arrhythmia in clinical practice, which can cause high disability and mortality with the progress of the disease. Many studies at home and abroad have shown that the incidence of atrial fibrillation gradually increases with age. Clinically, the onset of most AF patients is insidious, which is difficult to capture by routine electrocardiogram, and there is some difficulty in the diagnosis. In order to make the early diagnosis of atrial fibrillation more efficient and accurate, this paper reviews the current status and research progress of detection technology for atrial fibrillation at home and abroad, in order to provide a scientific basis for the early diagnosis of atrial fibrillation.
文摘Currently,there is significant attention placed on the construction,management,and maintenance of large service bridges.Within the realm of bridge maintenance management,the utilization of detection and monitoring technology is indispensable.By employing these technologies,we can effectively identify any structural defects within the bridge,promptly uncover unknown risks,proactively establish maintenance strategies,and prevent the rapid deterioration of bridge conditions.This article aims to explore the advantages of applying bridge monitoring and testing technology and to discuss various methods for implementing detection and monitoring technology throughout the construction,management,and maintenance phases of large bridges.Ultimately,this will contribute to ensuring the safe operation of large bridges.
文摘Gravitational wave detection has ushered in a new era of observing the universe, providing humanity with a novel window for cosmic cognition. This theoretical study systematically traces the developmental trajectory of gravitational wave detection technology and delves into its profound impact on cosmological research. From Einstein’s prediction in general relativity to LIGO’s groundbreaking discovery, the article meticulously delineates the key theoretical and technological milestones in gravitational wave detection, with particular emphasis on elucidating the principles and evolution of core detection technologies such as laser interferometers. The research thoroughly explores the theoretical application value of gravitational waves in verifying general relativity, studying the physics of compact celestial bodies like black holes and neutron stars, and precisely measuring cosmological parameters. The article postulates that gravitational wave observations may offer new research perspectives for addressing cosmological conundrums such as dark matter, dark energy, and early universe evolution. The study also discusses the scientific prospects of combining gravitational wave observations with electromagnetic waves, neutrinos, and other multi-messenger observations, analyzing the potential value of this multi-messenger astronomy in deepening cosmic cognition. Looking ahead, the article examines cutting-edge concepts such as space-based gravitational wave detectors and predicts potential developmental directions for gravitational wave astronomy. This research not only elucidates the theoretical foundations of gravitational wave detection technology but also provides a comprehensive theoretical framework for understanding the far-reaching impact of gravitational waves on modern cosmology.
文摘Water quality monitoring is a process of evaluating water quality, including monitoring and measuring the trend, concentration and water body change of various pollutants. The organization and implementation of important water quality monitoring will provide representative, accurate, comparable and complete data for governments at all levels, timely feedback the monitoring results to relevant ministries and commissions, and provide scientific and theoretical basis for governments at all levels to make water pollution prevention and control decisions.
文摘With the rapid development of economy, certain environmental pollution is inevitably caused, among which sewage discharge causes water pollution. In the process of industrial development, heavy metals have certain risk of exceeding the standard in water environment. Therefore, in the field of chemical industry, the detection method with certain advanced technology content is applied. This paper expounds and analyzes the laboratory detection technology and on-site investigation measures.
文摘In order to ensure the healthy growth of agricultural products and provide food for more people, the use of pesticides is essential. If the pesticide residue on food is too much, it will cause certain potential food safety hazard. After eating the food contaminated by the residual agricultural products, the light condition is manifested as dizziness and vomiting, which may lead to poisoning and death. In order to strengthen the detection and identification of pesticide residues in agricultural products, it is necessary to strengthen the supervision and supervision of food safety testing. This article mainly analyzes and discusses the detection technology of pesticide residues in agricultural products and food safety detection for reference.
文摘This article focuses on bridge testing technologies in highway construction and expansion projects.It provides an overview of the inspection process for bridges in highway reconstruction and expansion projects,the main inspections,and strategies for improving the quality of inspections.Relevant units should conduct bridge inspections using appearance inspections,special inspections,and bearing capacity assessments in highway reconstruction and expansion projects.To effectively improve testing quality,relevant units should also focus on establishing and improving testing standards,strengthening material testing,and improving the overall quality of the testing personnel.This research aims to enhance the quality of highway reconstruction and expansion projects by supporting the sensible application of bridge inspection technology.
文摘The foundation quality of construction engineering plays an important role in protecting the safety of users and improving the construction efficiency of superstructure. Nowadays, with the continuous development of building construction in China towards more beautiful and more floors, ensuring the quality of foundation has become the primary factor. Foundation construction is not only the first step of construction engineering, but also the key step. In order to ensure the quality of foundation construction and avoid building inclination or settlement caused by foundation problems, it is necessary to strictly grasp the quality links and ensure that the construction is completed in accordance with relevant standards. The application of foundation detection technology can ensure that the foundation quality meets the requirements of construction engineering and fundamentally improve the overall quality of construction engineering. Therefore, the application of foundation detection technology in construction engineering is of great significance. In this paper, the author deeply analyzes the key points of foundation detection technology of construction engineering and gives corresponding optimization countermeasures for reference to relevant construction units
文摘In order to promote the stability of centrifugal pump units and maximize the role of centrifugal pumps, this paper analyzes the composition and basic working principle of centrifugal pumps, presents the main concerns of centrifugal pump maintenance, and finally investigates the common faults and maintenance methods of centrifugal pumps for reference.
文摘In this paper,the application strategy of ultrasonic detection technology in the detection of concrete foundation piles is analyzed using a construction project as an example.It includes a basic overview of the project,an overview of ultrasonic testing technology in bridge concrete pile foundation testing,and an analysis of its practical application in the concrete pile foundation testing of this project.The objective of this analysis is to provide some reference for the application of ultrasonic testing technology and the improvement of the quality of bridge concrete pile foundation testing.
文摘The road traffic industry in China has been developing rapidly in recent years.Asphalt has become the main material in road construction because of its seamless connection and short construction period,and it has an important impact on the overall quality of highway construction.Therefore,it is necessary to conduct scientific and reasonable tests and detections for highway asphalt pavement.This paper presents a discussion on the test and detection technology of highway asphalt pavement for future reference.
文摘Objective: to discuss and study the value of GeneXpert PCR detection technology in specific population in basic laboratory. Methods: from June 2020 to June 2021, 129 samples of tuberculosis sputum samples in the basic laboratory were included in the study. Smear detection method and GeneXpert PCR detection technology were used to detect and analyze these sputum samples successively, and the positive and negative detection rates of tuberculosis in the two detection methods were compared. The sensitivity, specificity and diagnostic consistency of the two methods were compared. Results: the positive rate of tuberculosis detected by GeneXpert PCR was significantly higher than that detected by smear, while the negative rate was significantly lower than that detected by smear (P<0.05). The detection sensitivity, specificity and diagnostic consistency of GeneXpert PCR were significantly better than that of smear (P<0.05). Conclusion: in the laboratory backlog crowd detection work, using PCR detection device instrument technology, can guarantee the overall detection diagnosis to a great extent, improve TB positive and negative detection rate, improve the diagnostic specificity, sensitivity, consistency, effective help medical researchers found that people with TB, promote the continuous positive development of the laboratory.
文摘Infrared nondestructive test (IRT) technology as a new detection method, can detect materials, components, the internal defects of evaluate the stress state of materials and realize the rapid prediction of fatigue life, the equipment running condition monitoring and fault diagnosis of infrared nondestructive testing technology are introduced in detail in this paper the principle of detecting leakage of external wall empty drum. Its advantages and application scope are also briefly described.
文摘Medical detection technology-from biochemical analysis to medical imaging has witnessed tremendous progress in the past decades,driven by the breakthrough of biomedical and scientific theories,the innovation of engineering techniques,as well as the discovery of new contrast mechanisms.These substantial progresses have significantly promoted
文摘In the aerospace field, residual stress directly affects the strength, fatigue life and dimensional stability of thin-walled structural components, and is a key factor to ensure flight safety and reliability. At present, research on residual stress at home and abroad mainly focuses on the optimization of traditional detection technology, stress control of manufacturing process and service performance evaluation, among which research on residual stress detection methods mainly focuses on the improvement of the accuracy, sensitivity, reliability and other performance of existing detection methods, but it still faces many challenges such as extremely small detection range, low efficiency, large error and limited application range.
基金College Students’Innovation and Entrepreneurship Training Program Project(X202511049398)College Students’Innovation and Entrepreneurship Training Program Project(X202511049201)+1 种基金College Students’Innovation and Entrepreneurship Training Program Project(D202504071303298456)Hainan Vocational University of Science and Technology University-Level Scientific Research Funding Project(HKKY2024-87).
文摘Pseudomonas aeruginosa is an opportunistic pathogen widely distributed in the natural environment,which can cause a variety of infections,especially in people with low immunity and high pathogenicity.In recent years,significant progress has been made in the detection technology of Pseudomonas aeruginosa,covering traditional methods,molecular biology techniques,immunological methods and automated detection systems.Traditional methods such as the national standard method and the filter membrane method are easy to operate,but have the problems of long time consuming and limited sensitivity.Molecular biological techniques(such as PCR,gene cloning)and immunological methods(such as ELISA,colloidal gold immunochromatography)have significantly improved the sensitivity and specificity of detection,but they require high equipment and technology,and are expensive.Automated detection systems,such as VITEK 2 Compact and AutoMS 1000 mass spectrometry identification system,are excellent in improving detection efficiency and accuracy,but their high cost and complex operation process limit their wide application.In addition,the resistance of Pseudomonas aeruginosa to bacteriostatic agents further increases the difficulty of detection.In this paper,the development and application of immunological detection technology,molecular biological technology and immunological technology of Pseudomonas aeruginosa were reviewed,and the principles,advantages,disadvantages and research progress of various detection technologies of Pseudomonas aeruginosa were described,and the future development trend was prospected,in order to provide reference for the optimization and development of detection methods of Pseudomonas aeruginosa.
