Results 61 to 70 of about 684,577 (345)

The Effects on Absorbed Dose Distribution in Intraoral X-ray Imaging When Using Tube Voltages of 60 and 70 kV for Bitewing Imaging

open access: yeseJournal of Oral Maxillofacial Research, 2013
Objectives: Efforts are made in radiographic examinations to obtain the best image quality with the lowest possible absorbed dose to the patient. In dental radiography, the absorbed dose to patients is very low, but exposures are relatively frequent.
Kristina Hellén-Halme, Mats Nilsson
doaj   +1 more source

Performance Of Compound Enhancement Algorithms On Dental Radiograph Images

open access: yes, 2011
The purpose of this research is to compare the original intra-oral digital dental radiograph images with images that are enhanced using a combination of image processing algorithms. Intraoral digital dental radiograph images are often noisy, blur edges and low in contrast.
S.A.Ahmad   +4 more
openaire   +1 more source

Bright Monocompound Metal Halide Scintillator for Fast Neutron Radiography

open access: yesAdvanced Functional Materials, EarlyView.
Metal halide scintillator, tetraphenylphosphonium manganese bromide (TPP2MnBr4), provides a significant benefit for fast neutron imaging. A fourfold increase in efficiency over traditional zinc sulfide screens is achieved by efficiently utilizing neutron interactions within its homogeneous structure.
Aditya Bhardwaj   +13 more
wiley   +1 more source

Chest radiograph image enhancement with wavelet decomposition and morphological operations

open access: yesTELKOMNIKA (Telecommunication Computing Electronics and Control), 2019
Medical image processing algorithms significantly affect the precision of disease diagnostic process. This makes it crucial to improve the quality of a medical image with the goal to enhance perceivability of the points of interest in order to obtain accurate diagnosis of a patient.  Despite the reliance of various medical diagnostics on utilize X-rays,
Anthony Y. Aidoo   +2 more
openaire   +3 more sources

Effect of time lapse on the diagnostic accuracy of cone beam computed tomography for detection of vertical root fractures [PDF]

open access: yes, 2016
Accurate and early diagnosis of vertical root fractures (VRFs) is imperative to prevent extensive bone loss and unnecessary endodontic and prosthodontic treatments.
Asl, A.M.   +6 more
core   +1 more source

Carbon Fiber Oxidation in 4D

open access: yesAdvanced Materials, EarlyView.
The oxidation of porous carbon fiber heat shield material at high temperatures is imaged using time‐resolved synchrotron X‐ray microtomography. Resolving the interplay between species diffusion and carbon‐oxygen reaction rate reveals spatially and temporally varying degradation across oxidation regimes, with profound implications for in‐depth material ...
Benjamin M. Ringel   +14 more
wiley   +1 more source

Advances in Halide Perovskites for Photon Radiation Detectors

open access: yesAdvanced Materials Technologies, EarlyView.
This work highlights recent progress in perovskite‐based photon radiation detectors, covering organic–inorganic hybrid, inorganic, lead‐free double, and vacancy‐ordered halide perovskites. Their detection performance is compared, material‐specific advantages and challenges are examined, and provides insight into current limitations and future ...
Liangling Wang   +3 more
wiley   +1 more source

Liquiritin Exerts a Dual Effect on BMSCs Osteogenic Differentiation and Fracture Healing by Activating the ERK/JNK Pathway and Providing Antioxidant Protection

open access: yesAdvanced Therapeutics, EarlyView.
Liquiritin enhances the osteogenic differentiation of BMSCs and promotes fracture healing through the activation of the ERK/JNK signaling pathway and by exerting antioxidant protective effects. Abstract Liquiritin, a flavonoid from Glycyrrhiza uralensis L., has diverse pharmacological properties, but its impact on fracture healing is unexplored.
Haijun Mao   +6 more
wiley   +1 more source

PSMD14 Stabilizes SLC7A11 to Ameliorate Glucocorticoid‐Induced Osteoporosis by Suppressing Osteocyte Ferroptosis

open access: yesAdvanced Science, EarlyView.
Glucocorticoid‐induced osteoporosis (GIOP) triggers osteocyte ferroptosis via SLC7A11 degradation. PSMD14 stabilizes SLC7A11 by counteracting glucocorticoid‐driven ubiquitination, preserving cystine uptake and glutathione synthesis. AAV‐mediated PSMD14 delivery or its agonist Pantethine rescues osteocyte survival and bone loss in GIOP mice.
Yifeng Shi   +20 more
wiley   +1 more source

Performance of digital radiography with enhancement filters for the diagnosis of proximal caries

open access: yesBrazilian Oral Research, 2013
Enhancement filters are potentially supposed to improve the diagnostic performance of digital images. Thus, the aim of this study was to compare the performance of digital radiography with and without enhancement filters for the detection of induced ...
Manuella Dias Furtado Belém   +4 more
doaj  

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