Results 11 to 20 of about 175,677 (257)
Particulate Matter Profiles along the Rack Railway Route Using Low-Cost Sensor
Atmosphere, 2021 Air pollution due to Particulate Matter (PM) is an increasing concern of global extent. It has been the focus of many research projects worldwide and the latest low-cost technology is offering an ease and cheap way to monitor PM concentration.
Abdul Samad +3 more
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Atmosphere, 2022 The Stuttgart S-Bahn network comprises six subway lines and is used by approximately 425,000 people on a daily basis. In previous studies in other cities, it was found that subways can be a source and collection point of particulate matter (PM), which is
Abdul Samad +4 more
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Investigating a Low-Cost Dryer Designed for Low-Cost PM Sensors Measuring Ambient Air Quality
Sensors, 2021 Air pollution in urban areas is a huge concern that demands an efficient air quality control to ensure health quality standards. The hotspots can be located by increasing spatial distribution of ambient air quality monitoring for which the low-cost ...
Abdul Samad +3 more
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Quality Control, Data Cleaning, Imputation
, 2023 This chapter addresses important steps during the quality assurance and control of RWD, with particular emphasis on the identification and handling of missing values. A gentle introduction is provided on common statistical and machine learning methods for imputation.
Liu, Dawei +4 more
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Atmosphere, 2022 A substantial amount of air pollution is emitted from urban sources. Hence, investigating air pollutant dispersion from urban sources is of great importance. The mechanisms influencing air pollutant dispersion also need to be studied thoroughly. Unmanned
Abdul Samad +3 more
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Sensors, 2021 Over the last decade, manufacturers have come forth with cost-effective sensors for measuring ambient and indoor particulate matter concentration. What these sensors make up for in cost efficiency, they lack in reliability of the measured data due to ...
Janani Venkatraman Jagatha +7 more
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Sterile Supply, 2023 To explore the effect of medical failure mode and effect analysis (HFMEA) in the quality management of gynecological laparoscopic instrument cleaning.MethodsUsing HFMEA, we analyzed the possible influencing factors of laparoscopic instrument cleaning ...
Chunping Chen
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The effect of data cleaning on record linkage quality [PDF]
BMC Medical Informatics and Decision Making, 2013 Within the field of record linkage, numerous data cleaning and standardisation techniques are employed to ensure the highest quality of links. While these facilities are common in record linkage software packages and are regularly deployed across record linkage units, little work has been published demonstrating the impact of data cleaning on linkage ...
Sean M. Randall +3 more
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Cleaning the NVD: Comprehensive Quality Assessment, Improvements, and Analyses [PDF]
IEEE Transactions on Dependable and Secure Computing, 2021 Vulnerability databases are vital sources of information on emergent software security concerns. Security professionals, from system administrators to developers to researchers, heavily depend on these databases to track vulnerabilities and analyze security trends. How reliable and accurate are these databases though?
Afsah Anwar +4 more
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Calibration and performance evaluation of PM2.5 and NO2 air quality sensors for environmental epidemiology [PDF]
Atmospheric Measurement TechniquesOver the past few decades, the study and the use of air quality sensors have significantly increased, leading to a wealth of experience and a deeper understanding of their strengths and limitations.
M. Chacón-Mateos +4 more
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