Today, a large number of targets operate in space, and there are mainly four kinds of attitude targets: triaxial stabilized targets, spin stabilized targets, triaxial stabilized targets on tumbling, and spin stabilized targets on tumbling. It is of great significance to classify and identify these targets. First, the infrared radiation characteristic model of the target is established, taking different attitude targets into account, which, to the best of our knowledge, has seldom been considered. Then, through the simulation of specific example targets, the differences in infrared characteristics of four kinds of attitude targets are analyzed and explained. Finally, according to the orbit distribution and typical geometry structure of space targets, the infrared characteristic data sets of four kinds of attitude targets are simulated, and a classifier is established to classify and recognize these targets. The results show that the infrared characteristics of different attitude targets are obviously different, and the classifier can successfully classify and recognize different attitude targets.
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http://dx.doi.org/10.1364/AO.409547 | DOI Listing |
Cureus
December 2024
Medical School, King Faisal University, Al Ahsa, SAU.
Background Cosmetic procedures have become increasingly popular worldwide; however, male participation remains relatively low, especially in conservative societies like Saudi Arabia. This study explores the awareness, attitudes, and experiences of men concerning aesthetic procedures in Saudi Arabia, with a focus on sociodemographic factors and sources of information. This study aimed to assess male awareness, attitudes, and experiences with aesthetic procedures in Saudi Arabia and identify factors influencing their engagement with these interventions.
View Article and Find Full Text PDFDisaster Med Public Health Prep
December 2024
College of Population Health, University of New Mexico, Albuquerque, NM, USA.
Objective: To estimate COVID-19 vaccine intention, uptake, and hesitancy among essential workers.
Methods: A cross-sectional survey of USDA-certified organic producers. An electronic survey was used for data collection.
Hum Vaccin Immunother
December 2025
Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, Hong Kong, China.
Human papillomavirus (HPV) vaccination could reduce HPV infection in men who have sex with men (MSM), but the published statistics on HPV vaccination uptake in MSM were scarce globally. This study estimated the uptake and profiled the service preferences of HPV vaccination of Chinese MSM in Hong Kong. Adult MSM were recruited through non-governmental organizations (NGOs) and online channels for completing an online baseline survey.
View Article and Find Full Text PDFBDJ Open
December 2024
Department of Medical Education, Virtual School of Medical Education and Management, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Objective: This study investigates the effectiveness of a newly developed smartphone-based application for teaching population oral health needs assessment to undergraduate dental students.
Methods: Target population in this study consisted of all students of Shahid Beheshti School of dentistry in the 7 and 8 semesters in the year 2023. The intervention group (7 semester) received teaching about population oral health needs assessment based on the book "Oral health surveys; basic methods", by means of an application, while the control group (8 semester) received the same content through self-learning activity.
Addict Sci Clin Pract
December 2024
University of Connecticut School of Medicine, Farmington, CT, 06032, USA.
Background: Contingency management (CM), an incentive-based intervention to encourage target behaviors, effectively promotes medication adherence. However, efforts to extend CM to HIV pre-exposure prophylaxis (PrEP) have been lacking. As part of a randomized clinical trial to promote HIV Prevention among people who inject drugs (PWID), we examined the readiness of staff in community-based organizations serving PWID to implement CM for PrEP uptake and adherence in this population.
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