期刊文献+
共找到12,111篇文章
< 1 2 250 >
每页显示 20 50 100
Analysis of Detection and Monitoring Technology in the Construction and Maintenance of Large Bridges
1
作者 Shengzhong Xiang Qin Su Shili Zhang 《Journal of Architectural Research and Development》 2024年第3期134-139,共6页
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
关键词 Large bridges CONSTRUCTION Maintenance Monitoring technology detection technology
下载PDF
Acoustic Non-Destructive Testing Technology in Concrete Bridge Inspection and Pile Foundation Detection
2
作者 Wei Fu 《Journal of Architectural Research and Development》 2024年第1期20-25,共6页
This article takes the actual construction project of a certain concrete bridge project as an example to analyze the application of acoustic non-destructive testing technology in its detection.It includes an overview ... This article takes the actual construction project of a certain concrete bridge project as an example to analyze the application of acoustic non-destructive testing technology in its detection.It includes an overview of a certain bridge construction project studied and acoustic non-destructive testing technology and the application of acoustic non-destructive testing technology in actual testing.This analysis hopes to provide some guidelines for acoustic non-destructive testing of modern concrete bridge projects. 展开更多
关键词 Concrete bridge Bridge detection Acoustic detection Non-destructive testing technology
下载PDF
Research Progress of Atrial Fibrillation Detection Technology
3
作者 Yingying Yang Xue Dong Yuxi Liang 《Journal of Biosciences and Medicines》 2024年第4期14-20,共7页
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
关键词 Atrial Fibrillation ECG detection technology
下载PDF
Applications of Ultrasonic Detection Technology in Bridge Concrete Pile Foundation Detection
4
作者 Wei Fu 《Journal of World Architecture》 2023年第6期45-50,共6页
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
关键词 Bridge engineering Concrete pile foundation Ultrasonic detection technology Ultrasonic detection principle
下载PDF
Research on Infrared Image Fusion Technology Based on Road Crack Detection
5
作者 Guangjun Li Lin Nan +3 位作者 Lu Zhang Manman Feng Yan Liu Xu Meng 《Journal of World Architecture》 2023年第3期21-26,共6页
This study aimed to propose road crack detection method based on infrared image fusion technology.By analyzing the characteristics of road crack images,this method uses a variety of infrared image fusion methods to pr... This study aimed to propose road crack detection method based on infrared image fusion technology.By analyzing the characteristics of road crack images,this method uses a variety of infrared image fusion methods to process different types of images.The use of this method allows the detection of road cracks,which not only reduces the professional requirements for inspectors,but also improves the accuracy of road crack detection.Based on infrared image processing technology,on the basis of in-depth analysis of infrared image features,a road crack detection method is proposed,which can accurately identify the road crack location,direction,length,and other characteristic information.Experiments showed that this method has a good effect,and can meet the requirement of road crack detection. 展开更多
关键词 Road crack detection Infrared image fusion technology detection quality
下载PDF
Discussion on Test and Detection Technology of Highway Asphalt Pavement
6
作者 Linli Ni 《Journal of World Architecture》 2023年第3期59-63,共5页
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
关键词 HIGHWAY Asphalt pavement Test and detection technology
下载PDF
Research on Key Technology of Web Vulnerability Detection System Based on Cloud Environment
7
作者 Zhang Zhen 《International Journal of Technology Management》 2013年第12期121-124,共4页
In the light of the defect of web vulnerability detection system, combined with the characteristics of high efficient and sharing in the cloud environment, a design proposal is presented based on cloud environment, wh... In the light of the defect of web vulnerability detection system, combined with the characteristics of high efficient and sharing in the cloud environment, a design proposal is presented based on cloud environment, which analyses the key technology of gaining the URL, task allocation and scheduling and the design of attack detection. Experiment shows its feasibility and effectiveness in this paper. 展开更多
关键词 cloud technology web crawler task allocation and scheduling detection of SQL injection XSS detection
下载PDF
Application and implications of polyethylene glycol-fusion as a novel technology to repair injured spinal cords 被引量:3
8
作者 George D.Bittner Kiran K.Rokkappanavar Jean D.Peduzzi 《Neural Regeneration Research》 SCIE CAS CSCD 2015年第9期1406-1408,共3页
Conventional vs. polyethylene glycol (PEG)-fusion tech- nologies to repair severed spinal axons: Most spinal cord injuries (SCIs) involve cutor crush-severance of spinal tract axons in the central nervous system ... Conventional vs. polyethylene glycol (PEG)-fusion tech- nologies to repair severed spinal axons: Most spinal cord injuries (SCIs) involve cutor crush-severance of spinal tract axons in the central nervous system (CNS). Clinical out- comes after CNS axonal severance is very poor because proximal segments of CNS axons lack a suitable environment for outgrowth (Kakulas, 1999; Fitch and Silver, 2008; Rowland et al., 2008; Kwon et al., 2010) and therefore do not naturally regenerate (Ramon y Caial, 1928). Current strategies to try to increase behavioral recovery after SCI are focused on en- hancing the environment for axonal outgrowth. 展开更多
关键词 PEG Application and implications of polyethylene glycol-fusion as a novel technology to repair injured spinal cords
下载PDF
Plant Nutrient Solution Detection System Based on ZigBee Wireless Technology 被引量:1
9
作者 Binyue Chen Fuhai Zhang 《Journal of Computer and Communications》 2018年第6期61-68,共8页
Based on the limitations of traditional plant nutrient solution detection, a ZigBee plant nutrient solution detection system based on CC2530 was developed. This system uses CC2530 as the main control chip, DS18B20 as ... Based on the limitations of traditional plant nutrient solution detection, a ZigBee plant nutrient solution detection system based on CC2530 was developed. This system uses CC2530 as the main control chip, DS18B20 as the temperature sensor for temperature acquisition, PH electrode sensor for PH value acquisition. The experiment shows that this wireless control system equipped with temperature and pH detection sensor collects and samples the main nutrient solution parameters through the main controller, performs wireless communication transmission and terminal communication, and realizes the intelligent detection of plant nutrient solution parameters. This technique of applying wireless sensor network technology to plant factories greatly improves the reliability and stability of the nutrient monitoring system. 展开更多
关键词 PLANT NUTRIENT Solution detection System WIRELESS Sensor technology ZigBee EMBEDDED Web SERVER
下载PDF
The analysis of application of data mining technology in the system of intrusion detection 被引量:2
10
作者 Liu Zhijun Pu Xiaowei 《International Journal of Technology Management》 2014年第6期4-5,共2页
With the economic development and the popularity of application of electronic computer, electronic commerce has rapid development. More and more commerce and key business has been carried on the lnternet because Inter... With the economic development and the popularity of application of electronic computer, electronic commerce has rapid development. More and more commerce and key business has been carried on the lnternet because Internet has the features of interaction, openness, sharing and so on. However, during the daily commerce, people worry about the security of the network system. So a new technology which can detect the unusual behavior in time has been invented in order to protect the security of network system. The system of intrusion detection needs a lot of new technology to protect the data of the network system. The application of data mining technology in the system of intrusion detection can provide a better assistant to the users to analyze the data and improve the accuracy of the checking system. 展开更多
关键词 The system of intrusion detection data mining technology APPLICATION
下载PDF
Research on Obstacle Detection Method of Urban Rail Transit Based on Multisensor Technology 被引量:2
11
作者 Xiao Tianwen Xu Yongneng Yu Huimin 《Journal of Artificial Intelligence and Technology》 2021年第1期61-67,共7页
With the rapid development of urban rail transit,passenger traffic is increasing,and obstacle violations are more frequent,and the safety of train operation under high-density traffic conditions is becoming more and m... With the rapid development of urban rail transit,passenger traffic is increasing,and obstacle violations are more frequent,and the safety of train operation under high-density traffic conditions is becoming more and more thought provoking.In order to monitor the train operating environment in real time,this paper first adopts multisensing technology based on machine vision and lidar,which is used to collect video images and ranging data of the track area in real time,and then it performs image preprocessing and division of regions of interest on the collected video.Then,the obstacles in the region of interest are detected to obtain the geometric characteristics and position information of the obstacles.Finally,according to the danger degree of obstacles,determine the degree of impact on the train operation,and use the signal system automatic response ormanual response mode to transmit the detection results to the corresponding train,so as to control the train operation.Through simulation analysis and experimental verification,the detection accuracy and control performance of the detection method are confirmed,which provides safety guarantee for the train operation. 展开更多
关键词 multisensor technology urban rail transit obstacle detection
下载PDF
Intrusion Detection System with Remote Signalling for Vehicles Using an Arduino Controller and Radio-Frequency Technology 被引量:1
12
作者 Senghor Abraham Gihonia Rostin Makengo Mabela +5 位作者 René Gilles Bokolo Eddy Kimba Matondo Katshitshi Matshitshi Kalombo Michel Tshodi Nathanael Kasoro Mulenda 《Journal of Software Engineering and Applications》 2022年第4期116-129,共14页
Malicious activities or policy violations have been a concern for the past years. For example, many people have been victims of robbery on vehicles. A conceptual diagram of an Intrusion Detection System (IDS) [1] [2] ... Malicious activities or policy violations have been a concern for the past years. For example, many people have been victims of robbery on vehicles. A conceptual diagram of an Intrusion Detection System (IDS) [1] [2] for vehicles with remote signaling using an Arduino controller and radio-frequency technology is proposed in this paper. To address malicious activities on vehicles, two aspects are considered here, namely: notifier and detector. Firstly, an object-oriented C module that puts on and off a controller (installed inside the vehicle) and an anti-theft electronic editing that powered using an alternator and supported by a back-up battery are implemented. Secondly, a magnetic intrusion sensor, controlled by a proximity detector using radio-frequency technology, has been installed on each vehicle door. To enable IDS, a user needs to activate the monitoring system when leaving their vehicle. This is done using a remote system. In case the user does not activate the monitoring system while leaving the vehicle, a 5-meter-proximity detector will automatically lock the system and set off the monitoring system whenever the user is outside the detection zone. The detection zone is a 5-meter radius area centered at the controller. Here, monitoring consists of geolocating any intruders within the detection zone. This means, if any of the vehicle doors is opened while the system is still locked, the controller will activate the vehicle alarm for a few seconds, thereafter send an SMS notification to the owner. The system automatically unlocks as soon as the proximity detector is within the detection zone. The contribution of this paper, as compared to other similar work, is to reinforce the electronic implementation of IDS. 展开更多
关键词 Intrusion detection Magnetic Intrusion Sensor Arduino Controller Radio-Frequency technology GSM Module
下载PDF
Present Situation and Detection Technology of Pesticide Residues in Tobacco
13
作者 Zhang Yan Chen Dan +2 位作者 Li Ling Wang Chunqiong Wang Shuhua 《Plant Diseases and Pests》 CAS 2019年第1期24-27,共4页
This article summarizes the present situation of pesticide residue in tobacco, and introduces the extraction methods and detection tech-niques of pesticide residues commonly used in pesticide residue analysis. The adv... This article summarizes the present situation of pesticide residue in tobacco, and introduces the extraction methods and detection tech-niques of pesticide residues commonly used in pesticide residue analysis. The advantages and disadvantages of these methods are reviewed, and the development of pesticide residue analysis technology is prospected. 展开更多
关键词 TOBACCO PESTICIDE RESIDUES detection technology
下载PDF
Analysis on Mathematics Teaching Goal Design Technology and Its Detection
14
作者 Yong Huang Xingcong Mao 《International Journal of Technology Management》 2013年第8期65-67,共3页
Teaching goal design is an important link of teaching design, which has the teaching, learning and measurement function. How to establish the appropriate teaching goal and properly state to enhance its guidance and de... Teaching goal design is an important link of teaching design, which has the teaching, learning and measurement function. How to establish the appropriate teaching goal and properly state to enhance its guidance and detection function are the important tasks of teaching design. This paper makes a programming and systematic analysis on the aspects of teaching goal design theory, teaching goal statement mode and technology, teaching goal statement and design and teaching goal design detection. 展开更多
关键词 teaching goal design guidance and detection statement technology
下载PDF
Research on engineering-oriented constraints conflict detection in collaborative design of wire harness technology
15
作者 LIU Xiaoping HE Honglin XU Benzhu 《Computer Aided Drafting,Design and Manufacturing》 2012年第2期13-19,共7页
Engineering-oriented constraint of harness technology has much information and project information presents progressive changes along with the design. Therefore, how to handle conflict resolution quickly is a problem ... Engineering-oriented constraint of harness technology has much information and project information presents progressive changes along with the design. Therefore, how to handle conflict resolution quickly is a problem to be solved. Process model of con- flict detection is put forward according to characteristics of harness technology design engineering-oriented constraint, and then two problems of how to conduct conflict positioning and judgment of constraint rules are introduced in this paper. Afterwards in this pa- per, constraint information directed acyclic graph is established by classified project constraint information to solve the conflict posi- tioning problem; solution of constraint satisfaction problem is applied to realize judgment problem of constraint rules. Finally, exam- ple is used to analyze the method in this paper to further verify the correctness and effectiveness of this method. 展开更多
关键词 harness technology collaborative design conflict detection engineering-oriented constraint
下载PDF
Editorial:special issue on medical detection technology
16
作者 GAO Feng 《Instrumentation》 2016年第4期1-2,共2页
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
关键词 Editorial:special issue on medical detection technology
下载PDF
Signal Processing Circuit Design of Infrared Detection System with SO2 Concentration Based on Correlation Filter Technology
17
作者 赵雁雨 姚娜 《Journal of Measurement Science and Instrumentation》 CAS 2011年第4期394-397,共4页
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
关键词 SO2 infrared absorption correlation detecting and filtering technology weak signal processing
下载PDF
Application of multi-planar reconstruction technique in endovascular repair of aortic dissection
18
作者 Guo-Jie Li Ming-Xian Zhao 《World Journal of Clinical Cases》 SCIE 2024年第17期2989-2994,共6页
BACKGROUND Endovascular repair of aortic dissection is an effective method commonly used in the treatment of Stanford type B aortic dissection.Stent placement during the operation was one-time and could not be repeate... BACKGROUND Endovascular repair of aortic dissection is an effective method commonly used in the treatment of Stanford type B aortic dissection.Stent placement during the operation was one-time and could not be repeatedly adjusted during the operation.Therefore,it is of great significance for cardiovascular physicians to fully understand the branch status,position,angle,and other information regarding aortic arch dissection before surgery.AIM To provide more references for clinical cardiovascular physicians to develop treatment plans.METHODS Data from 153 patients who underwent endovascular repair of aortic dissection at our hospital between January 2021 and December 2022 were retrospectively collected.All patients underwent multi-slice spiral computed tomography angiography.Based on distinct post-image processing techniques,the patients were categorized into three groups:Multiplanar reconstruction(MPR)(n=55),volume reconstruction(VR)(n=46),and maximum intensity projection(MIP)(n=52).The detection rate of aortic rupture,accuracy of the DeBakey classification,rotation,and tilt angles of the C-arm during the procedure,dispersion after stent release,and the incidence of late complications were recorded and compared.RESULTS The detection rates of interlayer rupture in the MPR and VR groups were significantly higher than that in the MIP group(P<0.05).The detection rates of De-Bakey subtypesⅠ,Ⅱ,andⅢin the MPR group were higher than those in the MIP group,and the detection rate of typeⅢin the MPR group was significantly higher than that in the VR group(P<0.05).There was no statistically significant difference in the detection rates of typesⅠandⅡcompared to the VR group(P>0.05).The scatter rate of markers and the incidence of complications in the MPR group were significantly lower than those in the VR and MIP groups(P<0.05).CONCLUSION The application of MPR in the endovascular repair of aortic dissection has improved the detection rate of dissection rupture,the accuracy of anatomical classification,and safety. 展开更多
关键词 Multiplanar reconstruction Endovascular repair of aortic dissection Image-processing technology Rate of aortic rupture Volume reconstruction
下载PDF
Analysis of Bridge Inspection Technology for Highway Reconstruction and Expansion
19
作者 Xu Meng Bo Liu +1 位作者 Ji Li Zhi Tu 《Journal of World Architecture》 2024年第1期40-44,共5页
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
关键词 EXPRESSWAY Reconstruction and expansion Bridge engineering detection technology
下载PDF
Review on the application of upconversion nanomaterials in heavy metal detection
20
作者 Yu-Hong He Xi Yu 《Food and Health》 2024年第3期1-17,共17页
As a widespread element,heavy metals have a significant impact on human health and threaten human health.It is of great significance to develop analytical technologies that can detect heavy metal ions quickly and accu... As a widespread element,heavy metals have a significant impact on human health and threaten human health.It is of great significance to develop analytical technologies that can detect heavy metal ions quickly and accurately.In comparison to conventional fluorescent materials such as organic dyes,quantum dot(QD)labels,and carbon quantum dots(CD),fluorescence detection technology utilizing lanthanide(Ln)ion-doped upconversion nanoparticles(UCNPs)stands out due to its distinctive attributes.These include a notably reduced autofluorescence background,enhanced tissue penetration capabilities,biocompatibility with cellular tissues,and minimal photodamage inflicted on biological samples.The utilization of this technology has garnered considerable attention across multiple fields.In the domain of heavy metal detection,traditional laboratory methods necessitate costly instrumentation and a fully equipped laboratory,involving intricate sample processing procedures and protracted detection periods,as well as a demand for skilled personnel.In contrast,the implementation of this material offers rapid and cost-effective detection,significantly mitigating the technical barriers for operators.Consequently,this represents an exceptional avenue to curtail expenses and broaden the scope of detection within the analytical process.This paper reviews the research progress of UCNPs in the detection of heavy metal ions,encompassing a brief elucidation of the luminescence principle of upconversion nanomaterials and commonly used detection principles.Additionally,it provides a detailed overview of the research status of several common non-metal ions and essential heavy metals.Furthermore,it summarizes the current focal points in UCNP detection and discusses the challenges and prospects associated with it. 展开更多
关键词 Heavy metals Upconversion nanoparticles Gold nanoparticles NANOSENSOR Fluorescence detection technology
下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部