This study introduced a time-delay exposure system independent of the mobile digital radiography equipment. The system consisted of lithium battery, delay control circuit, micro electric motor and related auxiliary facilities. When the starting time was reached through the delay circuit, the motor pushed out the rod to squeeze the exposure button and completed the exposure. The accessories used in this system were easy to purchase and cheap. At the same time, the technology was mature and had good compatibility. The exposure success rate was high and the exposure effect was satisfactory. This time-delay exposure system had good practicability and popularization value.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.3969/j.issn.1671-7104.2023.06.020 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Effect of ambient O on respiratory mortality and synergies with meteorological factors in Shenyang, China.
Sci Rep
January 2025
Key Laboratory of Semi-Arid Climate Change, College of Atmospheric Sciences, Ministry of Education, Lanzhou University, Lanzhou, 730000, China.
The impact of O on the respiratory system is a significant global problem. Nevertheless, there is insufficient information about its impact on respiratory disorders in northeast China. In this study, we used a generalized additive model (GAM) to determine the correlation between O concentrations and respiratory deaths based on the daily meteorological data, pollutant concentrations, and respiratory deaths from 2014 to 2016 in Shenyang, a typical city in northeast China.
View Article and Find Full Text PDFAssociation between long-term exposure to air pollutants with breakthrough SARS-CoV-2 infections and antibody responses among COVID-19 vaccinated older adults in Northern Italy.
Environ Res
January 2025
Research Center in Epidemiology and Preventive Medicine (EPIMED), Department of Medicine and Surgery, University of Insubria, Varese, Italy.
Aims: To investigate the association between long-term exposure to PM PM NO and O with SARS-CoV-2 breakthrough infections and COVID-19 vaccine-induced antibody responses in a northern Italian population-based sample of older adults.
Methods: Within an ongoing prospective population-based study, we followed-up 1326 vaccinated individuals aged 65-83 years, with no prior SARS-CoV-2 infection, for their first positive SARS-CoV-2 swab until December 31st, 2022. We assessed spike IgG antibody levels in most participants (n = 1206).
Toxicokinetic modelling of the synthetic cannabinoid 5F-MDMB-P7AICA and its main metabolite in pigs following pulmonary administration.
Br J Clin Pharmacol
November 2024
Institute of Legal Medicine, Saarland University, Homburg, Germany.
Aims: Since their emergence on the drug market, synthetic cannabinoids (SC) are still gaining increasing importance in forensic toxicology. The representatives of the so-called new psychoactive substances have in common that they have not undergone preclinical safety studies. Hence, knowledge on toxicokinetic (TK) data is sparse.
View Article and Find Full Text PDFHigh time resolution quantification of PM oxidative potential at a Central London roadside supersite.
Environ Int
November 2024
MRC Centre for Environment and Health, Environmental Research Group, Imperial College London, 86 Wood Lane, London W12 0BZ, UK; NIHR HPRU in Environmental Exposures and Health, Imperial College London, UK.
Article Synopsis
- The oxidative potential (OP) of airborne particulate matter (PM) is important for assessing health risks, but traditional methods of measuring OP have slow time resolution and may miss reactive components.
- A new instrument has been developed that allows for continuous, high-resolution (5-minute intervals) measurement of OP, providing more accurate data compared to traditional filter-based techniques.
- Conducted at the Marylebone Road Air Quality Monitoring Station in London, the study showed that high-resolution OP data reveals real-time changes influenced by factors like wind conditions and various PM sources, enhancing our understanding of PM's health implications.
Spiking activities in small neural networks induced by external forcing.
Chaos
October 2024
Radiophysics and Nonlinear Dynamics Department, Institute of Physics, Saratov State University, Astrakhanskaya Str. 83, Saratov 410012, Russia.
Article Synopsis
- Neurons in an excitable state aren't active in transmitting information until external factors trigger oscillations, altering their behavior.
- This paper focuses on how specific connection and influence parameters can cause spiking in a network of FitzHugh-Nagumo oscillators.
- The study examines the effects of different external influences, including periodic Gaussian pulses and Lévy noise, identifying key parameters that promote spiking activity in these networks.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!