scholarly journals Civil Aircraft metal structure superfluous hole repair and stress evaluation method

2021 ◽  
Vol 261 ◽  
pp. 02009
Author(s):  
Weibin Zhu ◽  
Kai Wang ◽  
Xiaodong Sun ◽  
Xue Yu ◽  
Jixiang Diao
Keyword(s):  
Production Efficiency ◽  
Evaluation Method ◽  
Standard Treatment ◽  
Metal Structure ◽  
Assessment Method ◽  
Treatment Procedure ◽  
Treatment Progress ◽  
Stress Evaluation ◽  
Civil Aircraft ◽  
Different Types

Civil aircraft is the most complicated production of the world and during the manufacture various kinds of manufacture nonconformities occur at times. Superfluous hole is one of the most typical nonconformity types. When coping with this kind of problem, engineers often lack experience or standard treatment criteria, which may cause verbose treatment progress, low production efficiency or even technique risk. This article firstly introduces reasons for different types of superfluous holes and figures out treatment procedure and methods and analyses strength evaluation and assessment method.

Research on Oil Depot Safety Evaluation Based on Dow Chemical Fire and Explosion Index Assessment Method

2013 ◽  
Vol 748 ◽  
pp. 1256-1261
Author(s):  
Shou Hui He ◽  
Han Hua Zhu ◽  
Shi Dong Fan ◽  
Quan Wen
Keyword(s):  
Production Management ◽  
Evaluation Method ◽  
Risk Index ◽  
Safety Evaluation ◽  
Assessment Method ◽  
Theoretical Ground ◽  
Potential Hazard ◽  
Process Unit ◽  
Safety Production ◽  
Fire And Explosion

At the present time, the Dow Chemical Fire and Explosion Index (F&EI) is a kind of risk index evaluation method that is comprehensively used in evaluating potential hazard, area of exposure, expected losses in case of fire and explosion, etc. As the research object to oil depot storage tank area, this article ultimately confirms establishing appropriate pattern of process unit as well as reasonable safety precautions compensating method, in order to insure the reasonableness of evaluating result, by means of selecting process unit, confirming material factor and compensating safety precautions, using F&EI method. This can provide the basis for theoretical ground in aspect of oil depot development and safety production management.

Exploring the water–energy–food nexus from a perspective of agricultural production efficiency using a three-stage data envelopment analysis modelling evaluation method: a case study of the middle and lower reaches of the Yangtze River, China

Water Policy ◽  
2018 ◽  
Vol 21 (1) ◽  
pp. 49-72 ◽  
Author(s):  
Jiazhong Zheng ◽  
Weiguang Wang ◽  
Dan Chen ◽  
Xinchun Cao ◽  
Wanqiu Xing ◽  
...  
Keyword(s):  
Data Envelopment Analysis ◽  
Agricultural Production ◽  
Yangtze River ◽  
Production Efficiency ◽  
Evaluation Method ◽  
Data Envelopment ◽  
The Yangtze River ◽  
Agricultural Resources ◽  
Important Challenge

Abstract A coordinated nexus of agricultural resources is vital to achieve food security and sustainable development in China. Comprehensively considering the water–energy–food nexus as well as the external environment, this study adopts a three-stage data envelopment analysis (DEA) modelling evaluation method to assess the agricultural production efficiency (APE) of seven provinces in the middle and lower reaches of the Yangtze River (MLYR) during 1996–2015. The results show that the three-stage DEA modelling evaluation method reveals real APE and is considered to be a better quantitative method than conventional approaches. A gradually widening range of APE is an important challenge for this region. Significantly, this region generates huge demands for agricultural resources. Moreover, regional emissions of greenhouse gases (GHG) decreased from 34.20 million tons standard coal in 1996 to 32.11 million tons standard coal in 2015, though APE has continued to decrease by 2.56% in the past two decades. In general, the management and technology levels should be improved simultaneously, even though specific opportunities for APE improvement vary across provinces in MLYR. However, understanding the temporal and spatial variation of APE along with the WEF nexus from a production-based insight is a vital step toward appropriately targeted policy making for nationwide resources savings and emissions reduction.

Research to Health Diagnose Model of Gate and Hoist Machinery Based on AHP

2011 ◽  
Vol 287-290 ◽  
pp. 3036-3042 ◽  
Author(s):  
Guang Ming Yang ◽  
Wen Bin Jia
Keyword(s):  
Evaluation Method ◽  
Safety Evaluation ◽  
Metal Structure ◽  
Weight Coefficient ◽  
Diagnostic Model ◽  
Ahp Method ◽  
Safety Level ◽  
Comprehensive Health ◽  
Expert Evaluation Method ◽  
Health Diagnosis

Safety evaluation index is a fundamental and key element in composing hydraulic metal structure healthy diagnostic model, however,the determination of weighting of Indexes is closely related to the reasonability and reliability of the whole evaluation result.Based on the safety level, importance and expertise of the main factors on hydraulic metal structure,we also combine integration of AHP method of nine marks and expert evaluation method to determine the weight coefficient of each index, the comprehensive health diagnosis of gates and hoists based on AHP method are first constructed in line with scientific and rational principles .And we use the model to achieve the specific project safety evaluation of hydraulic metal structures, also comparing it with the traditional comparative analysis, proving the comprehensive health diagnosis based on AHP model to be a more scientific, reasonable and reliable one.

scholarly journals Possible Assessment Method of Green Infrastructure in the Case of Small Town Keszthely, Hungary

Land Science ◽  
2020 ◽  
Vol 2 (2) ◽  
pp. p21
Author(s):  
Vera Iváncsics ◽  
Krisztina Filepné Kovács
Keyword(s):  
Green Infrastructure ◽  
Environmental Planning ◽  
Evaluation Method ◽  
Assessment Method ◽  
Policy Implications ◽  
Current Status ◽  
Field Surveys ◽  
Further Development ◽  
The Eu

Recently the planning of green infrastructure (GI) has become a general practice around metropolis (Paris, München, Budapest, etc). A complex methodology is required that goes beyond the scope of traditional green surface systems. However, there are various policy implications in the EU, the smaller towns are lagging to apply them. The paper presents a potential evaluation method through the case study of Keszthely, HU. As Keszthely at Balaton Riviera, is a popular touristic target of CEE, the environmental planning is an essential part of sustainable development. After a literature analyses of assessment methods of GI and ecosystem services, the aspects of GI have been valued on grade scales, based on field surveys and indicators. The current status of the GI was surveyed which is a base for further development and monitoring activities. The paper introduces the methodology, which contributes to preservation of ecosystems.

scholarly journals Research on Anomalous Behavior Detection and Dangerousness Assessment among Civil Aviation Passengers at Checkpoints

2021 ◽  
Author(s):  
Haibin Shen ◽  
yan Zhang
Keyword(s):  
Neural Network ◽  
Index System ◽  
Evaluation Method ◽  
Assessment Method ◽  
Anomalous Behavior ◽  
Civil Aviation ◽  
Risk Level ◽  
Neural Network Method ◽  
Behavior Detection ◽  
Network Method

Abstract Traditional civil aviation security check measures are focused on baggage rather than passengers. The goal of this study is to enhance the level and effectiveness of security measures. We propose an anomalous behavior detection technique for civil aviation passengers and a passenger risk-assessment method based on a neural network method. A large number of real cases were analyzed and summarized to extract indicators of anomalous behavior of civil aviation passengers, and an index system was developed to detect anomalous behavior of passengers at checkpoints. A neural network method was used to evaluate the passengers and classify the risk level to detect potentially dangerous personnel, monitor people, and create an emergency warning system. The synthetic minority oversampling technique (SMOTE), the conjugate gradient method, and a multilayer perceptron neural network were used to classify the risk level of passengers at checkpoints. The results demonstrated that the proposed index system and evaluation method were well suited to deal with the ambiguity and uncertainty in the recognition process. The anomalous behavior of civil aviation passengers at checkpoints and the associated threat level were accurately identified.

scholarly journals Evaluasi Program Pembelajaran Sejarah Terintegrasi dalam Mata Pelajaran IPS Di SMPN 4 Kota Bekasi

2018 ◽  
Vol 7 (1) ◽  
pp. 1-28
Author(s):  
Kurniawati Kurniawati
Keyword(s):  
Social Studies ◽  
Secondary School ◽  
Evaluation Method ◽  
Assessment Method ◽  
Program Goal ◽  
Responsive Evaluation ◽  
History Learning ◽  
Implementation Assessment ◽  
Research Show ◽  
Three Components

This research explores the history learning which is integrated to IPS subject or also known as social studies at secondary school in SMPN 4 Kota Bekasi. The Method used in this research was evaluation method which employed responsive evaluation developed by Stake. Responsive evaluation by Stake used responsive clock as guided stages for evaluator. There were three components of evaluation following his earlier countenance model antecedent, transactions and outcomes. The things considered as antecedent were policy of the program, goal of the program, curriculum, book, means and infrastructure, and teacher’s competency. The things considered as transactions were lessons plan, instructional implementation, assessment, method and media of instructions. The results of the research show that there were several problems in the school related to program being evaluated, therefore several recommendation are given to IPS’s teacher, headmaster, government and also parents and community.   Penelitian ini bertujuan untuk mendeskripsikan pembelajaran sejarah yang terintegrasi dalam mata pelajaran IPS atau yang dikenal juga sebagai social studies di sekolah menengah pertama SMPN 4 Kota Bekasi. Metode yang digunakan dalam penelitian ini adalah metode evaluasi yang menggunakan model evaluasi responsive yang dikembangkan oleh Stake. Evaluasi responsive yang dikembangkan oleh Stake menggunakan responsive clock sebagai panduan bagi evaluator. Terdapat tiga komponen evaluasi mengikuti model countenance yang telah dikembangkan sebelumnya oleh   Stake   yaitu   komponen   antecedent,   komponen   transactions   dan   komponen outcomes. Termasuk komponen antecedent adalah kebijakan program, tujuan program, kurikulum, buku, sarana prasarana, dan kompetensi guru. Termasuk dalam komponen transactions adalah perencanaan pembelajaran, pelaksanaan pembelajaran, metode pembelajaran, media pembelajaran dan penilaian proses pembelajaran. Hasil penelitian menunjukkan bahwa terdapat beberapa masalah di sekolah berkaitan dengan program pembelajaran sejarah yang terintegrasi dalam   mata pelajaran IPS di SMP N 4 Kota Bekasi, sehingga beberapa saran diberikan kepada sekolah dan guru, MGMP, pemerintah, orang tua dan masyarakat.

scholarly journals An Introduction to Economic Evaluation: What's in a Name?

2005 ◽  
Vol 50 (3) ◽  
pp. 159-166 ◽  
Author(s):  
Jeffrey S Hoch ◽  
Carolyn S Dewa
Keyword(s):  
Economic Evaluation ◽  
Evaluation Method ◽  
Cost Effective ◽  
Economic Evaluations ◽  
Economic Study ◽  
Value Judgment ◽  
A Value ◽  
Different Types ◽  
New Treatment ◽  
Evaluation Techniques

Objective: This paper describes the main types of economic evaluation techniques. Method: To examine the strengths and limitations of different types of economic evaluations, we used a hypothetical example to review the reasoning underlying each method and to illustrate when it is appropriate to use each method. Results: The choice of economic evaluation method reflects a decision about what should represent “success” and how success should be valued. Measures of benefit and cost must be considered systematically and simultaneously. Claiming that a new treatment is cost-effective requires making a value judgment based on the personal beliefs of the claimant. Even when cost and effect data are objective, a verdict of cost-effective is subjective. The conclusions of an economic study can change significantly, depending on which patient outcome is used to measure success. Conclusions: Clinicians must be sure that important patient outcomes are not excluded from economic evaluations. Economic evaluation is a process designed to produce an estimate rather than a decision. New treatment can be more costly and still be cost-effective (if the extra benefit is valued more than the extra cost to produce it). However, since economic evaluation does not explicitly consider a decision maker's available budget, a new treatment can be deemed cost-effective but too expensive to approve.

Harness Fittings from the 7th– 8th Centuries Discovered in Transylvania. Stirrups and Horse Bits

2021 ◽  
Vol 30 ◽  
pp. 181-216
Author(s):  
Călin Cosma
Keyword(s):  
Metal Structure ◽  
Military Equipment ◽  
Different Types

On the territory of Transylvania I have recorded 15settlements where stirrups have been discovered (Tab. 1-2). I have recorded 13 settlements where bits were discovered. In four of them the bits were found in Gepidic-Avar cemeteries (Tab. 3-4). A series of items used for the distribution of harness straps and buckles for the harness leathers were discovered in horse graves or in graves with horses from 7th–8th century Transylvania that belonged to the Avars (Pl. 25). Fragments of iron sets and plates of various sizesfrom the metal structure of horse saddles had been deposited in the grave from Unirea 2/Veresmort (catalogue III. 5) and in the graves with horses from Șpălnaca(catalogue III.4.1). Horse saddles certainly existed in many more inhumation graves from Transylvania but have not been preserved. It should be noted that bothstirrups and bits were found in most graves that contained different types of weapons or other military equipment accessories.

scholarly journals Chinese Herbal Medicine Hepatotoxicity: The Evaluation and Recognization Based on Large-scale Evidence Database

2019 ◽  
Vol 20 (2) ◽  
pp. 138-146 ◽  
Author(s):  
Zhi Liu ◽  
Xin He ◽  
Lili Wang ◽  
Yunhua Zhang ◽  
Yue Hai ◽  
...  
Keyword(s):  
Herbal Medicine ◽  
Liver Injury ◽  
Chinese Herbal Medicine ◽  
Large Scale ◽  
Evaluation Method ◽  
Liver Toxicity ◽  
Assessment Method ◽  
Chinese Herbs ◽  
Data Resource ◽  
Chinese Herbal

Background:Due to the special nature of Chinese Herbal medicine and the complexity of its clinical use, it is difficult to identify and evaluate its toxicity and resulting herb induced liver injury (HILI).Methods:First, the database would provide full profile of HILI from the basic ingredients to clinical outcomes by the most advanced algorithms of artificial intelligence, and it is also possible that we can predict possibilities of HILI after patients taking Chinese herbs by individual patient evaluation and prediction. Second, the database would solve the chaos and lack of the relevant data faced by the current basic research and clinical practice of Chinese Herbal Medicine. Third, we can also screen the susceptible patients from the database and thus prevent the accidents of HILI from the very beginning.Results:The Roussel Uclaf Causality Assessment Method (RUCAM) is the most accepted method to evaluate DILI, but at present before using the RUCAM evaluation method, data resource collection and analysis are yet to be perfected. Based on existing research on drug-metabolizing enzymes mediating reactive metabolites (RMs), the aim of this study is to explore the possibilities and methods of building multidimensional hierarchical database composing of RMs evidence library, Chinese herbal evidence library, and individualized reports evidence library of herb induced liver injury HILI.Conclusion:The potential benefits lie in its ability to organize, use vast amounts of evidence and use big data mining techniques at the center for Chinese herbal medicine liver toxicity research, which is the most difficult key point of scientific research to be investigated in the next few years.

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