Results 1 to 10 of about 799,458 (251)

Lexicon for classifying ear-canal shapes [PDF]

Scientific Reports, 2023
The ear canal is usually described as an S-shaped funnel. In attempting to classify ear-canal shapes obtained from point clouds digitized from molds of 300 ears, the problem of designing criteria for distinguishing and organizing the canal shapes arose ...
J. C. Martinez, Goh Zhi Hwee, Luis Yap, Kenneth Wei De Chua, Savitha Kamath, Conrad Kang Rui Chung, Wendy Yu Bing Teo, Charmaine Kai Ling Tan, Stylianos Dritsas, Robert E. Simpson   +9 more
doaj   +4 more sources

Auditory Attention Reduced Ear-Canal Noise in Humans by Reducing Subject Motion, Not by Medial Olivocochlear Efferent Inhibition: Implications for Measuring Otoacoustic Emissions During a Behavioral Task

Frontiers in Systems Neuroscience, 2018
Otoacoustic emissions (OAEs) are often measured to non-invasively determine activation of medial olivocochlear (MOC) efferents in humans. Usually these experiments assume that ear-canal noise remains constant.
Nikolas A. Francis, Nikolas A. Francis, Wei Zhao, Wei Zhao, John J. Guinan Jr., John J. Guinan Jr., John J. Guinan Jr.   +6 more
doaj   +2 more sources

An ear canal deformation based continuous user authentication using earables [PDF]

ACM/IEEE International Conference on Mobile Computing and Networking, 2021
Biometric-based authentication is gaining increasing attention for wearables and mobile applications. Meanwhile, the growing adoption of sensors in wearables also provides opportunities to capture novel wearable biometrics.
Zi Wang, Sheng Tan, Linghan Zhang, Yili Ren, Zhi Wang, Jie Yang   +5 more
openalex   +2 more sources

In vivo investigation of ear canal pulse oximetry during hypothermia [PDF]

Journal of clinical monitoring and computing, 2017
Pulse oximeters rely on the technique of photoplethysmography (PPG) to estimate arterial oxygen saturation (SpO(Formula presented.)). In conditions of poor peripheral perfusion such as hypotension, hypothermia, and vasoconstriction, the PPG signals ...
AA Awad, B Venema, D Clayton, GE Folk, H Kaciuba-Uscilko, H Paelve, J Hofman, J Rosenberg, JT Moyle, JW Severinghaus, K Budidha, K Budidha, KH Shelley, KJ Barrington, M Hickey, M Shafique, P A Kyriacou, PA Kyriacou   +17 more
core   +2 more sources

Changes functional prediction of ear canal flora in chronic bacterial otitis externa [PDF]

Frontiers in Cellular and Infection Microbiology
ObjectiveTo investigate ear canal microflora’s structure, composition and function in patients with chronic bacterial otitis externa.MethodsA case-control study design method was used to collect the ear canal secretions from 14 patients with chronic ...
Tingting Duan, Zhiqun Li, Xiaoyong Han, Qichao Hong, Yunan Yang, Jinren Yan, Chengliang Xing   +6 more
doaj   +2 more sources

A Case of Ear Canal Cancer with a High Venous Arch That Benefited from an Intraoperative Navigation System. [PDF]

Case Rep Oncol
Tomioka R, Aihara Y, Tsukahara K.
europepmc   +3 more sources

Systematic and Individualized Preparation of External Ear Canal Implants: Development and Validation of an Efficient and Accurate Automated Segmentation System. [PDF]

J Imaging
Luo Y, Kouchakinezhad M, Repp F, Scheper V, Lenarz T, Matin-Mann F.   +5 more
europepmc   +2 more sources

Anatomy and Development of the Mammalian External Auditory Canal: Implications for Understanding Canal Disease and Deformity

Frontiers in Cell and Developmental Biology, 2021
The mammalian ear is made up of three parts (the outer, middle, and inner ear), which work together to transmit sound waves into neuronal signals perceived by our auditory cortex as sound.
Mona Mozaffari, Robert Nash, Abigail S. Tucker   +2 more
doaj   +1 more source

A case of cholesteatoma associated with traumatic ear canal stenosis discovered 50 years after injury

Otolaryngology Case Reports, 2021
Acquired ear canal stenosis can be caused by trauma, inflammation, postoperative scar formation, or tumors. There is a risk of cholesteatoma formation because of keratinized deposits in the closed space, with a reduction in quality of life because of ...
Ryota Tomioka, Taro Inagaki, Yoko Ohta, Chiba Yujin, Kiyoaki Tsukahara   +4 more
doaj   +1 more source

Bilateral Ear Acoustic Authentication: A Biometric Authentication System Using Both Ears and a Special Earphone

Applied Sciences, 2022
In existing biometric authentication methods, the user must perform an authentication operation such as placing a finger in a scanner or facing a camera.
Masaki Yasuhara, Isao Nambu, Shohei Yano
doaj   +1 more source