scholarly journals A comprehensive data quality evaluation method for the currents of marine controlled-source electromagnetic transmitters based on the analytic hierarchy process

2020 ◽  
Vol 9 (1) ◽  
pp. 69-77
Author(s):  
Rui Yang ◽  
Meng Wang ◽  
Gongxiang Wang ◽  
Ming Deng ◽  
Jianen Jing ◽  
...  
Keyword(s):  
Analytic Hierarchy Process ◽  
Quality Evaluation ◽  
Evaluation Method ◽  
Current Data ◽  
Sudden Increase ◽  
Analytic Hierarchy ◽  
Controlled Source ◽  
The Analytic Hierarchy Process ◽  
Hierarchy Process

Abstract. We present a quality control methodology for the currents of marine controlled-source electromagnetic transmitters . The quality level of the transmitting current directly affects the signal-to-noise ratio (SNR) of the electromagnetic-field data, as received by a multicomponent electromagnetic receiver from the seabed. Although the transmitting-current stability is sufficient under normal circumstances, the SNR of the received signal can change owing to factors such as outside noise. In some emergency cases such as instrument failure or a sudden increase in electromagnetic interference that we are not aware of, the frequency and properties of the transmitting current, such as its size and waveform, may change. The traditional current monitoring and data playback tools fail to detect and evaluate the anomalies well and in a timely manner, which introduces considerable errors in the later data-processing procedure. Pertaining to these issues, this paper proposes a comprehensive quality evaluation method for the transmitting current. The proposed algorithm, based on the analytic hierarchy process, is first used to analyze five current stability parameters – current frequency, positive amplitudes, negative amplitudes, discrepancy of ideal waveform, and waveform repetition – and then to define the harmonic energy and calculate the quality of transmitting current (QTC) index of the final data to assess the quality of the transmitting current comprehensively. The results of a marine experiment performed in 2016 show that the algorithm can identify abnormal current data and quantitatively evaluate the current conditions. Under normal circumstances, the QTC index is less than 2 %. The key findings are that the QTC index changes to more than 4 % and some curvilinear features are observed if the transmitting-current quality is poor. These results will provide a positive, significant guide for the evaluation and monitoring of transmitting-current data in marine experiments.

scholarly journals A comprehensive data quality evaluation method for the current of marine controlled-source electromagnetic transmitter based on Analytic Hierarchy Process

2019 ◽  
Author(s):  
Rui Yang ◽  
Meng Wang ◽  
Gongxiang Wang ◽  
Ming Deng ◽  
Jianen Jing ◽  
...  
Keyword(s):  
Electromagnetic Wave ◽  
Analytic Hierarchy Process ◽  
Quality Evaluation ◽  
Evaluation Method ◽  
Current Data ◽  
Analytic Hierarchy ◽  
Controlled Source ◽  
Electromagnetic Transmitter ◽  
Hierarchy Process

Abstract. Marine controlled-source electromagnetic method has more and more applications in ocean resources exploration. Electromagnetic transmitter sends electromagnetic wave to the underground, the receiver located on the seafloor receives the electromagnetic wave which carries the information of the geosphere. And the underground structure is obtained by inversion calculation. Data quality of electromagnetic transmitter and seafloor receivers is the most important part of this method. The quality level of transmitting current directly affects the signal-to-noise ratio (SNR) of the electromagnetic field data, as received by a multi-component electromagnetic receiver from the seabed. Although the transmitting current stability is sufficient under normal circumstances, the SNR of the received signal can change owing to factors such as outside noise. In some emergency cases such as instrument failure or a sudden increase in electromagnetic interference that we are not aware of, the frequency and properties of the transmitting current may change, such as its size and waveform. The traditional current monitoring and data playback tools fail to detect and evaluate the anomalies well and in a timely manner, which introduces considerable errors in the later data processing procedure. Pertaining to these issues, this paper proposes a comprehensive quality evaluation method for the transmitting current. The proposed algorithm, based on the analytic hierarchy process, is first used to analyse five current stability parameters: current frequency, positive amplitudes, negative amplitudes, discrepancy of ideal waveform, and waveform repetition and then to define the harmonic energy and calculate the quality of transmitting current (QTC) index of the final data to assess the quality of the transmitting current comprehensively. The results of a marine experiment performed in 2016 show that the algorithm can identify abnormal current data and quantitatively evaluate the current conditions. Under normal circumstances, the QTC index is within 2 %. However, after the simulation of anomalous mutations of the various attributes, the QTC index synchronized mutations to more than 4 % and some curvilinear features were observed. These results will provide a positive, significant guide for the evaluation and monitoring of transmitting current data in marine experiments.

scholarly journals A Comprehensive Quality Evaluation Method Based on C30-HPLC and an Analytic Hierarchy Process for the Chinese Herbal Formula, Erzhiwan

Molecules ◽  
2018 ◽  
Vol 23 (8) ◽  
pp. 2045 ◽  
Author(s):  
Ying Nie ◽  
Weifeng Yao
Keyword(s):  
Analytic Hierarchy Process ◽  
Quality Evaluation ◽  
Evaluation Method ◽  
Hplc Method ◽  
Good Precision ◽  
Analytic Hierarchy ◽  
Important Quality ◽  
Hierarchy Process

The quantitative analysis of multiple indexes remains an important quality evaluation method of traditional Chinese medicine (TCM) herbal formulas. The Chinese Pharmacopoeia 2015 only stipulates the content of a single component, specnuezhenide, in Erzhiwan composed of the Fructus Ligustri Lucidi (FLL) powder and aqueous extracts of Herba Ecliptae (HE). To generalize the intrinsic quality of Erzhiwan, a novel C30-HPLC method with good precision, accuracy, and reproducibility was developed for the simultaneous determination of six compounds, including two isomers, and then an analytic hierarchy process was further applied to integrate and discriminate the quality of four samples prepared via different methods. The results of the analysis were in agreement with the antioxidant tests in vitro. This comprehensive strategy could provide a reference and suggestions for the improvement of the quality evaluation method of TCM herbal formulas.

The Application Research in the Evaluation of Sports Teaching Quality Based on the Analytic Hierarchy Process

2012 ◽  
Vol 155-156 ◽  
pp. 143-147
Author(s):  
Xian Feng Wang ◽  
Xiang Qi Wang
Keyword(s):  
Analytic Hierarchy Process ◽  
Quality Assessment ◽  
Evaluation Method ◽  
Weight Coefficient ◽  
Teaching Quality ◽  
Analytic Hierarchy ◽  
School Sports ◽  
The Analytic Hierarchy Process ◽  
The Mathematical Model ◽  
Hierarchy Process

The sports teaching quality assessment is a regular schools of higher learning education evaluation of a part, is promoting sports course building and improve the quality of education is an important measures. The current stage of evaluation method is uneven, so need to build a simple and effective, scientific and reasonable evaluation methods to measure the school sports teaching quality. The article to the analytic hierarchy process in the sports teaching the application of quality evaluation carried on the preliminary discussion, put forward the sports teaching quality hierarchical system, and establish the teaching quality assessment of the mathematical model, through the weight coefficient of each index system, more scientific and objective to evaluate teaching quality, easy operation, which is of great use value.

The Application of the Analytic Hierarchy Process (AHP) in Mine Geological Environment Evaluation

2013 ◽  
Vol 416-417 ◽  
pp. 2020-2024 ◽  
Author(s):  
Shao Jian Shi ◽  
Liang Xun Shuo ◽  
Xing Tao Cui
Keyword(s):  
Analytic Hierarchy Process ◽  
Quality Evaluation ◽  
Human Factor ◽  
Influence Factors ◽  
Mining Area ◽  
Affecting Factors ◽  
Analytic Hierarchy ◽  
Scientific Nature ◽  
The Analytic Hierarchy Process ◽  
Hierarchy Process

Mine environmental geological assessment usually uses the expert subjective assignment to determine the weights of affecting factors, but the mine environmental geological problems are the result of many factors. Each factor is complex on the suitability of the influence factors, and the factors interrelate and restrict each other, so the human factor is of great impact. Take the geological quality evaluation of the mine environment of Shanxi, Shaanxi and Inner Mongolia mining area as an example, this article discusses in detail the process of determining the weights of evaluation factors by using the analytic hierarchy process (AHP), which increases the scientific nature of the assignment and reduces the subjectivity, which achieves satisfactory results.

Application of Comprehensive Evaluation and Sensitive Analysis in Certain Equipment

2015 ◽  
Vol 713-715 ◽  
pp. 1622-1626
Author(s):  
Ning Xie ◽  
Shuai Li ◽  
Di Li ◽  
Xiao Fei Wang
Keyword(s):  
Analytic Hierarchy Process ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Evaluation ◽  
Analytic Hierarchy ◽  
Sensitive Analysis ◽  
Comprehensive Fuzzy Evaluation ◽  
Judgment Matrix ◽  
The Analytic Hierarchy Process ◽  
Hierarchy Process

In this paper,it is mainly based on the characteristics of index of some equipment, analyses the correspondence between first class index and second class index, studies the calculation of weigh index. Several methods including linear weighted method, Comprehensive fuzzy evaluation method, and the fuzzy Borda method have been taken into account to improve the confirmable methods of judgment matrix in the Analytic Hierarchy Process (AHP). The analyses of three different eqiupment,A system,B system and C system, demonstrates that A system is the best unanimously.

scholarly journals PRIORITIZATION OF THE INDICATORS AND SUB-INDICATORS OF MAQASID AL-SHARIAH IN MEASURING LIVEABILITY OF CITIES

2018 ◽  
Vol 10 (3) ◽  
Author(s):  
Rafikul Islam ◽  
Norimah Md. Dali ◽  
Alias Abdullah
Keyword(s):  
Quality Of Life ◽  
Analytic Hierarchy Process ◽  
Evaluation Model ◽  
Analytic Hierarchy ◽  
Public Interests ◽  
Main Method ◽  
The Analytic Hierarchy Process ◽  
Global Peace ◽  
Hierarchy Process

Opinions were sought from a panel of two groups of Malaysian experts, i.e., the urban planners and the Maqasid al-Shariah scholars with the aim of developing an evaluation model via identifying and ranking the Maqasid indicators and sub-indicators for liveability and quality of life in cities. The measurement utilizes the Dharuriyyat (essentials or necessities) dimension of the Maqasid al-Shariah principles based on Al-Shatibi’s School of maslahah which targets public interests and benefits of living in cities. This is supported by Ibn Ashur and contemporarily by Yusuf al-Qaradhawi who emphasize harmony, justice and global peace. The Analytic Hierarchy Process (AHP) has been used as the main method to prioritize the indicators and sub-indicators. The AHP results indicate that religion, life, intellect, lineage and wealth are in descending order of importance, similar to the priorities of the classic Maqasid al-Shariah doctrine. However, the sub-indicators are ranked in terms of priorities based on the consensus of the urban planners and maqasid practitioners which ultimately form the Islamic liveability measurement for cities.

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