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Existing problems in the prediction methods for aircraft runway excursion are analyzed in this study and summarized in this paper. Based on the cause factors, process events, and internal mechanism of runway excursion, through event analysis, expert discussion, and other methods, the prediction index system is established. This system includes the three aspects of pilot, airport, and aircraft. The...
In the international regulations and standards for child restraint system, the standard ECE R44 issued by the European Economic Commission and the Federal Motor Vehicle Safety Standards -- FMVSS213 are widely used in the world. In this paper, we study the FMVSS213 standard. Child restraint system dynamic test performance is an important index for evaluating it's safety, In this paper, based on FMVSS213...
Under the deterioration of the food safety environment of food suppliers and the uncertainty of the food safety of the purchased food by individual manufacturers, this study aims to establish a mathematical model standard basis as a reference for decision evaluation on the optimal order quantity of food raw materials to satisfy the maximum expected returns, according to the food safety situations...
In the traditional methods, we uses qualitative and simple quantitative research methods to make the safety evaluation of the scaffolding. Those quantitative methods are affected by subjective judgment, having no scientific evidence. The article makes the scaffolding as a whole to analyze, using the AHP-fuzzy comprehensive safety evaluation method and verifying the former method by fuzzy pattern recognition...
Rust is a modern systems language that providesguaranteed memory safety through static analysis. However, Rustincludes an escape hatch in the form of "unsafe code," which thecompiler assumes to be memory safe and to preserve crucialpointer aliasing invariants. Unsafe code appears in many datastructure implementations and other essential libraries, and bugsin this code can lead to memory...
The introduction of smart meters has allowed us to monitor consumers' energy usage with a high degree of granularity. Detailed electricity usage patterns and trends can be identified to help understand daily consumer habits and routines. The challenge is to exploit these usage patterns and recognise when sudden changes in behaviour occur. This would allow detailed, around the clock, monitoring of...
Passenger volume of lasting large scale activities have the features of gathering, dispersing and large scale within a short time and a small range. Lasting large scale activities are defined as the large activities or events held for days, they have long duration, wide range of influence, and obvious passenger volume fluctuation, the passenger volume scale and time-space distribution is affected...
Marine simulator has been widely applied to the seafarer training and examination. But, there have been still no standardized criteria on evaluation of the operation level of the trainees, which can influence the training quality and the effectiveness of the evaluation results. Therefore, it is extremely necessary to establish an automatic assessment system for operations on marine simulator. Besides,...
Most of the emerging applications for road safety and traffic management rely on the frequent exchange of awareness messages among vehicles. Unfortunately, the 802.11 protocol poorly behaves under congested scenarios and cannot guarantee the reliability and timeliness demands of massively transmitted broadcast messages, leading to the severe degradation of safety. Recently, there has been a consensus...
Safety culture construction has significant impact on fire prevention in oilfield. Reasonable evaluation index system should be set up to evaluate the state and quality of safety culture construction in oilfield enterprise teams while further study should be taken and validated on spot. Framework of safety culture construction in Oilfield enterprise teams was put up. By SMART principle and occupation...
Alarm management has gained significance in the recent past mainly due to the drive to improve safety, reliability and efficiency of process operations. This paper highlights an in-house industrial implementation of a multitude of tools used for monitoring, analyzing and reporting alarm and safety system performance at LongLake site of Nexen Energy ULC. The efficacy of these tools, mainly used by...
The influencing factors indexes system of food industrial enterprises' integrity & credit is constructed from enterprise, government, market, society and consumer. It is difficult to decide accurately which factor has the greatest influence and influenced degree on the integrity & credit because there are the complicated, interactive and restrictive influencing relations between each pair...
In allusion to the deficiency of traditional key operation ascertaining methods, impact factors to measure the key of maintenance operation are analyzed from the aspect of value, and the indexes are ascertained to evaluate the key of parts batch-repair progress operation. The membership vectors of qualitative indexes are obtained through mark membership table, and the membership vectors of quantitative...
Frequent Li-ion battery (LiB) field safety incidents on the officially approved models have caused big concerns on its safety and certification, however, little attention and study have given to the potential safety risk of the certified battery. We developed a battery safety risk assessment tool by using a modified FMEA method with the RPN concept. To validate this concept we applied the tool to...
This study analyzes parametric wafer probe test measurements from high quality SoCs for automotive market. This product is a safety critical part that must have a near zero Defective Parts per Million (DPPM) rate. In order to achieve the required quality standard, a comprehensive parametric test set is performed on each part. In very rare occasions, a part with latent defect is identified. The latency...
for use pesticide threat to the environment, beneficial biological and human with a direct contact, puts forward two level evaluation indexes of pesticide toxicology and pesticide environmental toxicology involved seven secondary evaluation indexes. In different environment with pesticide use, set the weight of pesticide safety comprehensive evaluation, realize the pesticide safety of comprehensive...
In order to more effectively assess the safety risk of a wind farm project, the evaluation indicators in the life cycle of a project can be divided into quality index, cost index, time index, security index, and sustainable development index. By combining the qualitative with quantitative, the model of principal component analysis (PCA) of the life cycle indicators was established, which can reflect...
In the background of coal mine production safety accidents happening frequently in our country, the establishment of safety evaluation system is to be imperative in coal mine on the basis of the concept of sustainable development. In this paper it established a set of safety management system which is self restraint, collaborative operation and effective, according to its five internal system of coal...
With the development of economy and society, China's highway construction has made a great achievement, but there are also some factors related to project design that affected the quality of the projects. In order to improve the quality of the design and analyze the changes in cost and so on, it is necessary to have a post-evaluation of highway project design. From the theoretical and practical point...
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