Results 121 to 130 of about 176,270 (333)

Surface hydration‐induced damage in tight oil‐bearing sandy conglomerate reservoirs

open access: yesDeep Underground Science and Engineering, EarlyView.
A series of techniques such as X‐ray diffraction, scanning electron microscopy, energy‐dispersive spectroscopy, conductivity tests, and infrared thermal imaging were used. The key findings are the identification of a two‐stage surface hydration process and the elucidation of the effects of various minerals and elements on the hydration process ...
Anbang Zhao   +5 more
wiley   +1 more source

Endoscopic measurements using a panoramic annular lens [PDF]

open access: yes
The objective of this project was to design, build, demonstrate, and deliver a prototype system for making measurements within cavities. The system was to utilize structured lighting as the means for making measurements and was to rely on a stationary ...
Gilbert, John A., Matthys, Donald R.
core   +1 more source

Design of B,N Co‐Doped Carbon Spheres for Highly Effective Back Interface Engineering in Planar Carbon‐Based Perovskite Solar Cells

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The energy level mismatch of the perovskite/carbon back interface is decreased remarkably by using B, N co‐doped carbon sphere electrode in C‐PSCs, leading to effective charge carrier separation, extraction, and transport at the back interface. Combined with further buried modification using AMPA, the power conversion efficiency of the C‐PSCs is up to ...
Yujie Gao   +7 more
wiley   +1 more source

Prevalence of Occlusion of Different Teeth in Panoramic Radiography of Patients Referred to the Oral and Maxillofacial Radiology Clinic in Yasuj During 2017-2018

open access: yesArmaghane Danesh Bimonthly Journal, 2021
Background & aim: Tooth occlusion is a common anomaly that is caused by several factors including local and systemic factors. The most common teeth that may be occluded are tertiary permanent teeth, maxillary canines, maxillary and mandibular premolars ...
R Panahi, H Rezaei, M Saeedi, GH Sabz
doaj  

Vision-Based Localization Algorithm Based on Landmark Matching, Triangulation, Reconstruction, and Comparison

open access: yes, 2005
Many generic position-estimation algorithms are vulnerable to ambiguity introduced by nonunique landmarks. Also, the available high-dimensional image data is not fully used when these techniques are extended to vision-based localization.
MacDonald, B.A., Yuen, D.C.K.
core  

Areas of research priorities in epilepsy: A position paper of the European Reference Network for Rare and Complex Epilepsies, EpiCARE

open access: yesEpilepsia Open, EarlyView.
Abstract Objective To define and articulate research priorities in epilepsy identified by the European Reference Network for Rare and Complex Epilepsies (ERN EpiCARE), addressing key unmet needs across the spectrum of rare and complex epilepsies. Methods This position paper was developed through a structured collaborative process involving patient ...
Sébile Tchaicha   +27 more
wiley   +1 more source

Relationship between Skeletal Malocclusion and Radiomorphometric Indices of the Mandible in Long Face Patients

open access: yesDiagnostics
This study aimed to assess the relationship between skeletal malocclusion and radiomorphometric indices of the mandible in long face patients. This cross-sectional study evaluated 174 lateral cephalograms and panoramic radiographs of long face patients ...
Giuseppe D’Amato   +6 more
doaj   +1 more source

Panoramic Radio Astronomy [PDF]

open access: green, 2009
G. Heald, P. Serra
openalex   +1 more source

Knowledge, attitude and perception on radiation imaging among children's caregivers in the pediatric dental clinic [PDF]

open access: yes, 2017
OBJECTIVE: Nuclear medicine provides important clinical information for diagnostic and therapeutic purposes. Use of medical imaging has gradually increased in the United States and this has raised health concerns about the potential future risks ...
Hwang, Haejin
core  

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