Design of Artillery Recoil Distance Automatic Recording and Limit Distance Alarm Device

2014 ◽  
Vol 977 ◽  
pp. 409-412
Author(s):  
Shi Hai Zhou ◽  
Zhen Hui Xu ◽  
Zhen Jun Yang ◽  
Jian Hui Lu
Keyword(s):  
Automatic Recording ◽  
Evaluation Index ◽  
Practical Significance ◽  
Sensor Technology ◽  
Recoil Distance ◽  
Firing Efficiency

Recoil distance is an important evaluation index to reflect the performance of gun recoil mechanism. It can not allow to fire of artillery if recoil distance exceeding the prescribed distance. So it played an important role to ensure the normal firing of artillery. Previous artillery recoil distance is read by artificial indicator through the recoil, which affects the firing efficiency and has no conducive to the implementation of fast attack. This paper designed the gun recoil distance memory and alarm device by using the sensor technology and SCM programming. The device not only can record the recoil distance of each firing projectile and the total number of it but also can alarm if the recoil distance exceeds the specified maximum. The device effectively solves the problem that the recoil indicator artificial read and record. It has practical significance to improve the efficiency of the shooting.

scholarly journals Application of AHP-GRA in safety evaluation of blasting flying stones

2021 ◽  
pp. 19
Author(s):  
Keyword(s):  
Evaluation Model ◽  
Safety Evaluation ◽  
Correlation Method ◽  
Warning Signal ◽  
First Grade ◽  
Evaluation Index ◽  
Practical Significance ◽  
Risk Level ◽  
Safety Level ◽  
Correlation Degree

Blasting flying stone is one of the six hazards in rock and soil blasting construction. In order to determine the risk level of blasting flying stone, 3 first-grade indexes such as blasting design and construction are selected, and 11 second-grade indexes such as warning range are not set, so as to establish the blasting flying stone safety evaluation model of AHP-GRA. The analytic hierarchy process (AHP) was used to calculate the weight of the evaluation index. The grey correlation method was used to determine the correlation degree between the blasting flying stone and the safety level of an airport. The risk level of an airport was calculated based on the weight of the evaluation index, and the engineering verification was carried out. The results show that there is no warning signal, no notice before detonation and the warning range is too small, which are the main factors of the flying stone accident. The model presented in this paper is used to evaluate the blasting flying stones in an airport, and the evaluation results are basically consistent with the reality. It can be seen that the evaluation model can scientifically and reasonably evaluate the risk level of blasting flying stones, which has important practical significance.

scholarly journals 3D Kinematic Analysis of Intelligent Vision Sensor Image in Football Training

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Pengcheng Ni ◽  
Xi Luo
Keyword(s):  
Estimation Error ◽  
Three Dimensional ◽  
Algorithm Analysis ◽  
Practical Significance ◽  
Sensor Technology ◽  
Uniform Motion ◽  
Vision Sensor ◽  
Visual Sensor ◽  
Assembly Method ◽  
Football Training

With its advantages of high precision, noncontact, and high intelligence, intelligent visual sensor detection technology meets the requirements for online detection of motion status and intelligent recognition of motion images during sports activities, and its applications are becoming more and more extensive. In order to deeply explore the feasibility of using intelligent vision sensor technology to analyze the three-dimensional action of football, this article uses algorithm analysis method, technology summary method, and physical assembly method, collects samples, analyzes the motion model, streamlines the algorithm, and then creates a model based on intelligent visual sensor technology that can analyze the three-dimensional movement in football training. After the experimental objects are selected, the model is established in the ADM environment. All athletes do a uniform motion, the standard input motion speed is 5 m/s, they all move in the opposite direction relative to their respective coordinate axes, and the motion time is 6 seconds. The results show that the movement curves of the athletes in the three coordinate axis directions are basically the same. When the exercise time is 6 seconds, the coordinate values of the athletes on the three coordinate axes are all 0.992 m. We set six intensities in the experiment: 5%, 15%, 25%, 35%, 45%, and 55%. It can be found that as the noise intensity increases from 5% to 45%, the estimation error gradually increases, but as a whole, it is still at a relatively small level. It shows that the algorithm in this paper still has practical significance. It is basically realized that under the guidance of intelligent vision sensor technology, a model can be designed to successfully and efficiently analyze the three-dimensional movement pattern in training.

A Case Study on Evaluation of Airport Logistics Competitiveness Based on AHP

2010 ◽  
Vol 159 ◽  
pp. 307-312 ◽  
Author(s):  
Jian Liang Peng ◽  
Chen Xu Zhan
Keyword(s):  
Index System ◽  
Scientific Basis ◽  
Evaluation Index System ◽  
The Other ◽  
Asia Pacific ◽  
Evaluation Index ◽  
Practical Significance ◽  
Ahp Method ◽  
Advantages And Disadvantages

The evaluation of airport logistics competitiveness can identify the airports’ advantages and disadvantages, and take certain measures to solve problems. In this paper, the airport logistics competitiveness evaluation index system has been built. The application of AHP method evaluates the logistics competitiveness of Hangzhou Xiaoshan International Airport (HIA) and the other four airport of Asia Pacific in comprehensive. The advantages and disadvantages of HIA in logistics have been obtained, which provide a scientific basis to improve its logistics competitiveness. The conclusion of the study is of some practical significance.

scholarly journals The Construction and Research of Football Evaluation Index System

2020 ◽  
Vol 2 (3) ◽  
Author(s):  
Mengwei Qiao
Keyword(s):  
Performance Evaluation ◽  
Analytic Hierarchy Process ◽  
Performance Indicators ◽  
Evaluation Model ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Practical Significance ◽  
Expert Consultation ◽  
Analytic Hierarchy ◽  
Hierarchy Process

In order to establish the evaluation model of football performance indicators, this paper refers to the literature and determines the performance evaluation indicators such as the diversity of matches, players' contribution, flexibility, adaptability, coordination and tempo among players through expert consultation. Next, the paper uses analytic hierarchy process to determine the weight of each indicator. The study is of practical significance for the comprehensive and reasonable evaluation of football performance level.

Research on Networking with ZigBee Wireless Sensor Network Technology Following the Energy Strategy

2013 ◽  
Vol 740 ◽  
pp. 62-67
Author(s):  
Guo Liang Zou ◽  
Jie Ai Han
Keyword(s):  
Wireless Sensor Network ◽  
Sensor Network ◽  
Wireless Sensor ◽  
Practical Significance ◽  
Sensor Technology ◽  
Time Interval ◽  
Energy Strategy ◽  
Zigbee Protocol ◽  
Network Application ◽  
Ns2 Simulation

ZigBee is a kind of new wireless sensor technology, this paper introduces wireless network equipments and network topology based on the ZigBee protocol, and then in the perspective of energy management explores the different time interval of different number of nodes to join the network through a coordinator. Proved by NS2 simulation, to set the best time interval at 0.3s can make the network conflicts least in the process of networking and the total time for all devices to complete networking can be reduced by 61.66% at most, thereby reduce the energy consumption in the process of networking and extend lifecycle of the whole network. This has important practical significance to ZigBee-based wireless sensor network application to extend the network life.

Research on Evaluation Index System of Durability and Life Prediction for Concrete Structure

2013 ◽  
Vol 454 ◽  
pp. 175-178
Author(s):  
Shan Zhang ◽  
Ya Na Zhang ◽  
Yan Liu
Keyword(s):  
Index System ◽  
Concrete Structure ◽  
Life Prediction ◽  
Influence Factor ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Practical Significance ◽  
Application Software ◽  
Concrete Durability ◽  
Weight Calculation

According to the different environment characteristics of China, the environments are divided into five types. Concrete durability evaluation index system is established in connection with different influence degree of durability factors in different environment. Combining with the properties of entropy, the weight of each influence factor index in a specific environment is determined by using Extension AHP, in order to avoid the disunity and incomplete of traditional AHP and eliminate the subjectivity to a certain extent in the process of index weight calculation. On this basis, the application software of the concrete durability evaluation and the life prediction for existing structure is programmed, which is applied in the living example. The analysis result shows that the application software has some important application value and practical significance, which can evaluate the durability of concrete structure effectively.

Risk Assessment of Power Transformer Life Cycle Cost Based on Analytical Hierarchy Process

2013 ◽  
Vol 291-294 ◽  
pp. 2334-2339 ◽  
Author(s):  
Wen Ping Hu ◽  
Yang Li ◽  
Xiao Wei Wang ◽  
Xiao Bo Duan
Keyword(s):  
Life Cycle ◽  
Analytical Hierarchy Process ◽  
Index System ◽  
Life Cycle Cost ◽  
Evaluation Index System ◽  
Risk Indicators ◽  
Evaluation Index ◽  
Practical Significance ◽  
Hierarchy Process ◽  
Cost Risk

Transformer life cycle cost risk was analyzed systematically and scientifically. Risk evaluation index system of the transformer life cycle cost was established based on AHP(Analytical Hierarchy Process) . The 1-9 scale of the risk indicators was used to determine the weight of the evaluation index system, thus the combination of expert experience with quantitative and qualitative evaluation results are realized. Application results show that the method have practicality and effectiveness and has theoretical and practical significance for proposed effective cost risk optimization and control strategies for cost risk factors to minimize the risk of transformer life cycle cost.

scholarly journals Evaluation Index System and Evaluation Method of China’s Regional Potential for Electrical Energy Substitution

2018 ◽  
Vol 2018 ◽  
pp. 1-16 ◽  
Author(s):  
Yanmei Li ◽  
Zeng Chen
Keyword(s):  
Energy Consumption ◽  
Index System ◽  
Evaluation Method ◽  
Electrical Energy ◽  
Air Pollutant ◽  
Evaluation Index System ◽  
Pollutant Emissions ◽  
Evaluation Index ◽  
Practical Significance ◽  
Energy Substitution

Electrical energy substitution is used as a national strategy to promote the energy consumption revolution, increase the proportion of electric energy in terminal energy consumption, increase the proportion of coal used for power generation in total coal consumption, increase the share of renewable energy in electricity consumption, and reduce air pollutant emissions; its importance in the national energy strategy is beyond doubt. Evaluating the potential of electrical energy substitution in various regions of China is an indispensable step in effectively carrying out electrical energy substitution. Only by clearly identifying the potential and characteristics of electrical energy substitution in each region can an effective electrical energy substitution strategy be formulated. This paper constructs a regional electrical energy substitution potential evaluation index system, based on comprehensive consideration of the influencing factors and regional differences in the potential of electrical energy substitution. The weight of each indicator is determined by a combination of cloud model and entropy method. The improved Technique for Order Preference by Similarity to an Ideal Solution (TOPSIS) evaluation model by connection degree is used to evaluate the potential of electrical energy substitution in each region. Finally, this index system and evaluation method are used to evaluate the potential of electrical energy substitution in twenty-five regions in the State Grid jurisdiction, and the evaluation results are analyzed; the effectiveness of evaluation index system and evaluation method are verified. The practical significance of this paper lies in providing important theoretical support for State Grid to implement electrical energy substitution according to local conditions.

Specimen Preparation for Clinical Applications of X-Ray Microanalysis

1990 ◽  
Vol 48 (2) ◽  
pp. 328-329
Author(s):  
J.D. Shelburne ◽  
G.M. Roomans
Keyword(s):  
Carbon Coating ◽  
Clinical Applications ◽  
Point Of View ◽  
Practical Significance ◽  
Sweat Test ◽  
Specimen Preparation ◽  
Tissue Preparation ◽  
X Ray ◽  
Gallbladder Stones ◽  
Clinical Problems

Proper preparative procedures are a prerequisite for the validity of the results of x-ray microanalysis of biological tissue. Clinical applications of x-ray microanalysis are often concerned with diagnostic problems and the results may have profound practical significance for the patient. From this point of view it is especially important that specimen preparation for clinical applications is carried out correctly.Some clinical problems require very little tissue preparation. Hair, nails, and kidney and gallbladder stones may be examined and analyzed after carbon coating. High levels of zinc or copper in hair may be indicative of dermatological or systemic diseases. Nail clippings may be analyzed (as an alternative to the more conventional sweat test) to confirm a diagnosis of cystic fibrosis. X-ray microanalysis in combination with scanning electron microscopy has been shown to be the most reliable method for the identification of the components of kidney or gallbladder stones.A quantitatively very important clinical application of x-ray microanalysis is the identification and quantification of asbestos and other exogenous particles in lung.

Automated high-resolution microscopy: the approaches so far

1987 ◽  
Vol 45 ◽  
pp. 58-61
Author(s):  
W. O. Saxton
Keyword(s):  
High Resolution ◽  
Early Stage ◽  
Automatic Recording ◽  
Microprocessor Control ◽  
Alternative Systems ◽  
Electron Image ◽  
Complete Automation ◽  
Analysis System ◽  
High Resolution Microscopy

Recent commercial microscopes with internal microprocessor control of all major functions have already demonstrated some of the benefits anticipated from such systems, such as continuous magnification, rotation-free diffraction and magnification, automatic recording of mutually registered focal series, and fewer control knobs. Complete automation of the focusing, stigmating and alignment of a high resolution microscope, allowing focal series to be recorded at preselected focus values as well, is still imminent rather than accomplished, however; some kind of image pick-up and analysis system, fed with the electron image via a TV camera, is clearly essential for this, but several alternative systems and algorithms are still being explored. This paper reviews the options critically in turn, and stresses the need to consider alignment and focusing at an early stage, and not merely as an optional extension to a basic proposal.

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