Results 1 to 10 of about 907,233 (318)

Auricular cartilage versus donor sclera as a wrapping of hydroxyapatite orbital implants [PDF]

open access: yesInternational Journal of Ophthalmology, 2021
AIM: To retrospectively compare postoperative outcomes after primary enucleation and placement of a hydroxyapatite (HA) implant without wrapping, wrapped with auricular cartilage or donor sclera.
Ying-Jie Ma   +5 more
doaj   +1 more source

Optimization of satellite resource scheduling under regional target coverage conditions

open access: yesOpen Astronomy, 2022
This study presented a mathematical description of an arbitrary shape area, and after analyzing the characteristics of the near-polar orbital co-ground trajectory constellation that satisfies the revisit interval constraint, an optimization model of the ...
Liu Kaixi   +5 more
doaj   +1 more source

A Rare Case of Direct Spontaneous Carotid-Cavernous Fistula in a 6-Month-Old Infant and Review of the Literature

open access: yesCase Reports in Ophthalmology, 2023
Direct or type A CCFs are the direct connection between the cavernous segment of the internal carotid artery and the cavernous sinus. While most direct CCFs are caused by trauma, spontaneous direct CCFs are extremely rare in infants.
Sandeep Pal   +4 more
doaj   +1 more source

UAS Mapping as an alternative for land surveying techniques? [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
Can a UAS mapping technique compete with standard surveying techniques? Since the boom in different RPAS (remotely piloted air system), UAV (unmanned aerial vehicle), or UAS (unmanned aerial system), this is one of the crucial questions when it comes to ...
L. Devriendt, J. Bonne
doaj   +1 more source

Clinicopathological features of patients with wide local excision of eyelid malignant neoplasms: a more than five years retrospective study from China

open access: yesBMC Ophthalmology, 2022
Background To investigate the correlation between the clinical and pathological characteristics and outcomes in patients with eyelid malignant tumors underwent wide local excision.
Yuanyuan Han   +5 more
doaj   +1 more source

Assessing the Capacity and Coverage of Satellite IoT for Developing Countries Using a CubeSat

open access: yesApplied Sciences, 2022
Many regions in developing countries do not have any access to communication networks even though the number of devices connected through the Internet of Things (IoT) is increasing significantly.
Pooja Lepcha   +7 more
doaj   +1 more source

The hot orbit: Orbital cellulitis

open access: yesMiddle East African Journal of Ophthalmology, 2012
Orbital cellulitis is an uncommon condition previously associated with severe complications. If untreated, orbital cellulitis can be potentially sight and life threatening. It can affect both adults and children but has a greater tendency to occur in the pediatric age group. The infection most commonly originates from sinuses, eyelids or face, retained
Chaudhry, Imtiaz A.   +2 more
openaire   +3 more sources

On-Orbit Magnetometer Data Calibration Using Genetic Algorithm and Interchangeability of the Calibration Parameters

open access: yesApplied Sciences, 2023
Magnetometers are important sensors with applications in the attitude determination and control systems of satellites. CubeSats have certain limitations related to power, mass, and volume.
Dulani Chamika Withanage   +2 more
doaj   +1 more source

Haemangiopericytoma of the orbit [PDF]

open access: yesAustralian and New Zealand Journal of Ophthalmology, 1992
AbstractOrbital haemangiopericytomas are ideally managed by complete surgical excision in the first instance. This is frequently not achieved, because difficulty in making the diagnosis preoperatively results in incisional biopsy and the highly vascular nature of the tumour makes complete excision difficult.
Sullivan, TJ   +5 more
openaire   +5 more sources

Performance Evaluation of Machine Learning Methods for Anomaly Detection in CubeSat Solar Panels

open access: yesApplied Sciences, 2022
CubeSat requirements in terms of size, weight, and power restrict the possibility of having redundant systems. Consequently, telemetry data are the primary way to verify the status of the satellites in operation.
Adolfo Javier Jara Cespedes   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy