scholarly journals The personal difference in absolute geomagnetic measurements

2018 ◽  
Author(s):  
Yufei He ◽  
Xudong Zhao ◽  
Jianjun Wang ◽  
Fuxi Yang ◽  
Xijing Li ◽  
...  
Keyword(s):  
Quality Control ◽  
Decisive Role ◽  
External Factors ◽  
Data Quality Control ◽  
Important Work ◽  
Measurement Results ◽  
Geomagnetic Measurement ◽  
Baseline Values ◽  
Absolute Measurements ◽  
Geomagnetic Measurements

Abstract. Absolute geomagnetic measurement is very important work in geomagnetic observatories. It plays a decisive role in data quality control and instrument calibration. As modern fluxgate theodolite in absolute geomagnetic measurements has a high precision, usually with 1 second of arc, the measurement results are susceptible to external factors. The personal difference is one of these factors, and it has become an important factor that cannot be ignored in measurement results. In order to estimate the personal difference, an experiment has been designed. Six fluxgate theodolites were used and six observers who were proficient in absolute measurements were invited to this experiment. Then observers made the absolute geomagnetic measurements in turns, and the personal difference among the observers for each instrument was computed by comparing baseline values. Finally, the personal difference can be estimated by a statistical method.

scholarly journals The operator difference in absolute geomagnetic measurements

2019 ◽  
Vol 8 (1) ◽  
pp. 21-27 ◽  
Author(s):  
Yufei He ◽  
Xudong Zhao ◽  
Jianjun Wang ◽  
Fuxi Yang ◽  
Xijing Li ◽  
...  
Keyword(s):  
Quality Control ◽  
Data Quality ◽  
Decisive Role ◽  
External Factors ◽  
Data Quality Control ◽  
Measurement Results ◽  
Geomagnetic Measurement ◽  
Baseline Values ◽  
Absolute Measurements ◽  
Geomagnetic Measurements

Abstract. Absolute geomagnetic measurement is very important at geomagnetic observatories. It plays a decisive role in data quality control and instrument calibration. As absolute geomagnetic measurements from modern fluxgate theodolite instruments have high precision, usually within 1 arcsec, the measurement results are susceptible to external factors. The operator difference is one of these factors and has become an important consideration that can not be ignored with respect to measurement results. Therefore, an experiment was designed in order to estimate the operator difference. Six fluxgate theodolites were used and six observers who were proficient in absolute measurements were invited to participate. The observers took turns making absolute geomagnetic measurements, and the operator difference between the observers for each instrument was computed by comparing baseline values using statistical methods.

scholarly journals Automated Data Quality Control in FDOPA brain PET Imaging using Deep Learning

2021 ◽  
pp. 106239
Author(s):  
Antonella D. Pontoriero ◽  
Giovanna Nordio ◽  
Rubaida Easmin ◽  
Alessio Giacomel ◽  
Barbara Santangelo ◽  
...  
Keyword(s):  
Quality Control ◽  
Deep Learning ◽  
Data Quality ◽  
Pet Imaging ◽  
Data Quality Control ◽  
Brain Pet

scholarly journals An interactive graphical system for XBT data quality control and visualization

2001 ◽  
Vol 27 (7) ◽  
pp. 867-876 ◽  
Author(s):  
Pankajakshan Thadathil ◽  
Aravind K Ghosh ◽  
J.S Sarupria ◽  
V.V Gopalakrishna
Keyword(s):  
Quality Control ◽  
Data Quality ◽  
Data Quality Control ◽  
Graphical System

Implementation of Marine Environment Monitoring Data Quality Control System

2014 ◽  
Vol 926-930 ◽  
pp. 4254-4257 ◽  
Author(s):  
Jin Xu ◽  
Da Tao Yu ◽  
Zhong Jie Yuan ◽  
Bo Li ◽  
Zi Zhou Xu
Keyword(s):  
Quality Control ◽  
Control System ◽  
Data Quality ◽  
Marine Environment ◽  
Quality Control System ◽  
Monitoring Data ◽  
Environment Monitoring ◽  
Data Quality Control ◽  
Labor Costs ◽  
Marine Environment Monitoring

Traditional artificial perception quality control methods of marine environment monitoring data have many disadvantages, including high labor costs and mistakes of data review. Based on GIS spatial analysis technology, Marine Environment Monitoring Data Quality Control System is established according to the Bohai Sea monitoring regulation. In the practical application process, it plays the role of improving efficiency of quality control, saving the manpower and financial resources. It also provides an important guarantee for the comprehensive analysis and management of marine environment data.

Data quality control in a multi-insitutional cancer trial

1980 ◽  
Vol 1 (2) ◽  
pp. 171-172
Author(s):  
M.M. Koretz ◽  
M. Kohler ◽  
E. McGuigan ◽  
J.F. Hannigan ◽  
B.W. Brown
Keyword(s):  
Quality Control ◽  
Data Quality ◽  
Data Quality Control ◽  
Cancer Trial

Development of a centralized approach to conducting interlaboratory proficiency tests

2021 ◽  
pp. 428-434
Author(s):  
Светлана Владимировна Габова ◽  
Анастасия Александровна Трусагина ◽  
Михаил Евгеньевич Артёмов
Keyword(s):  
Quality Control ◽  
Control System ◽  
Oil Quality ◽  
Third Party ◽  
Quality Control System ◽  
Proficiency Tests ◽  
Testing Program ◽  
Testing Laboratories ◽  
Measurement Results ◽  
Reliability Of Measurement Results

Важнейшим звеном системы контроля качества нефти являются испытательные лаборатории, от компетентности которых зависит достоверность результатов измерений и эффективность управленческих решений, принимаемых с учетом полученных данных. Одним из способов подтверждения достоверности результатов измерений является проверка квалификации лаборатории посредством ее участия в межлабораторных сличительных (сравнительных) испытаниях (МСИ). В настоящей статье рассмотрены вопросы проведения таких испытаний для лабораторий организаций системы «Транснефть». Описан действующий порядок, предполагающий участие лабораторий в МСИ в регионах своего местонахождения, при этом разработкой и реализацией программы проверки квалификации занимаются сторонние организации - провайдеры МСИ. Такая практика имеет существенные недостатки, не позволяя, в том числе, систематизировать и обобщить результаты МСИ для общей оценки деятельности испытательных лабораторий ПАО «Транснефть». В статье представлен централизованный подход к проведению МСИ в ПАО «Транснефть», устанавливающий единый порядок участия лабораторий в испытаниях с целью осуществления общей оценки квалификации лабораторий, своевременной разработки и реализации предупреждающих и корректирующих мероприятий по улучшению деятельности лабораторий, усовершенствования системы контроля качества нефти на объектах ПАО «Транснефть». The most important link in the oil quality control system are testing laboratories, the competence of which determines the reliability of measurement results and the effectiveness of management decisions based on the data obtained. One way to confirm the validity of measurement results is to verify the laboratory qualifications through its participation in interlaboratory proficiency (comparative) tests (IPT). This article considers the issues of such tests for the laboratories of Transneft system entities. The current procedure is described, which involves the participation of laboratories in the IPT in the regions of their location, while the development and implementation of the proficiency testing program is carried out by third-party IPT provider organizations. This practice has significant drawbacks, not allowing, among other things, to systematize and summarize the results of IPT for an overall assessment of the activities of Transneft PJSC’s testing laboratories. The article presents a centralized approach to conducting IPT in Transneft PJSC, which establishes a unified procedure for the participation of laboratories in tests in order to implement an overall assessment of laboratory qualification, timely development and implementation of preventive and corrective measures to improve the performance of laboratories and improve the oil quality control system at the Transneft PJSC facilities.

Sign in / Sign up

Export Citation Format

Share Document