Results 11 to 20 of about 75,555 (299)

Efficacy of ultrasonics and Er,Cr:YSGG laser on root surface calculus removal: A comparative in vitro field emission scanning electron microscope study [PDF]

Journal of Advanced Periodontology and Implant Dentistry
Background. Scaling and root planing (SRP) is an inevitable primary step in non-surgical periodontal therapy. Debridement carried out with manual instruments and ultrasonics results in the removal of tooth structure.
Afreen Jannath, Rajasekar Sundaram, Suganya Selvarangam, Krishnan Viswanathan, Srinivasan Sivapragasam   +4 more
doaj   +1 more source

Intensity-adjustable pain management with prolonged duration based on phase-transitional nanoparticles-assisted ultrasound imaging-guided nerve blockade

Journal of Nanobiotechnology, 2022
Background The lack of a satisfactory strategy for postoperative pain management significantly impairs the quality of life for many patients. However, existing nanoplatforms cannot provide a longer duration of nerve blockage with intensity-adjustable ...
Bin Qiao, Xinye Song, Weiyi Zhang, Ming Xu, Bowen Zhuang, Wei Li, Huanling Guo, Wenxin Wu, Guangliang Huang, Minru Zhang, Xiaoyan Xie, Nan Zhang, Yong Luan, Chunyang Zhang   +13 more
doaj   +1 more source

On the optical nonlinearity in the GeSbSe chalcogenide glasses

Materials Research Express, 2020
Chalcogenide glasses Ge _x Sb _40−x Se _60 with composition 12, 25 and 30 at.%, synthesized from elements with 5N purity (Ge, Sb, Se) by the conventional melt-quenching method were studied.
Nicoleta Nedelcu, Veturia Chiroiu, Ligia Munteanu, Iulian Girip   +3 more
doaj   +1 more source

Ultrasound array transmitter architecture with high timing resolution using embedded phase-locked loops [PDF]

, 2012
Coarse time quantization of delay profiles within ultrasound array systems can produce undesirable sidelobes in the radiated beam profile. The severity of these sidelobes is dependent upon the magnitude of phase quantization error - the deviation from ...
Cowell, DMJ, Freear, S, Raiton, B, Smith, PR, Vo Ky, C   +4 more
core   +1 more source

Myocardial contrast echocardiography in the diagnosis of postoperative takotsubo myocardiopathy: case report and literature review

BMC Cardiovascular Disorders, 2019
Background Takotsubo cardiomyopathy (TCM) is a brief ventricular dysfunction that usually occurs after emotional or physical stress. Here, we report a patient who underwent cardiac surgery and then developed TCM during the postoperative period.
Jia-Hui Zeng, Wei Li, Feng-Juan Yao, Dong-Hong Liu, Cui-Ling Li, Yan-Qiu Liu, Rui Fan, Min Ye, Hong Lin   +8 more
doaj   +1 more source

Ultrasound-Based Radiomics Analysis for Preoperatively Predicting Different Histopathological Subtypes of Primary Liver Cancer

Frontiers in Oncology, 2020
BackgroundPreoperative identification of hepatocellular carcinoma (HCC), combined hepatocellular–cholangiocarcinoma (cHCC-ICC), and intrahepatic cholangiocarcinoma (ICC) is essential for treatment decision making.
Yuting Peng, Peng Lin, Linyong Wu, Da Wan, Yujia Zhao, Li Liang, Xiaoyu Ma, Hui Qin, Yichen Liu, Xin Li, Xinrong Wang, Yun He, Hong Yang   +12 more
doaj   +1 more source

Shear horizontal (SH) ultrasound wave propagation around smooth corners [PDF]

, 2014
Shear horizontal (SH) ultrasound guided waves are being used in an increasing number of non-destructive testing (NDT) applications. One advantage SH waves have over some wave types, is their ability to propagate around curved surfaces with little energy ...
Burrows, S. E. (Susan E.), Dixon, Steve M., Petcher, P. A.   +2 more
core   +1 more source

Assessment and Non-Destructive Evaluation of the Influence of Residual Solvent on a Two-Part Epoxy-Based Adhesive Using Ultrasonics

Applied Sciences, 2023
Polymers are increasingly being used in higher demanding applications due to their ability to tailor the properties of structures while allowing for a weight and cost reduction.
Gonzalo Seisdedos, Edgar Viamontes, Eduardo Salazar, Mariana Ontiveros, Cristian Pantea, Eric S. Davis, Tommy Rockward, Dwayne McDaniel, Benjamin Boesl   +8 more
doaj   +1 more source

Full and half-wavelength ultrasonic percussive drills [PDF]

, 2018
Ultrasonic-percussive drills are a leading technology for small rock drilling applications where power and weight-on-bit are at a premium. The concept uses ultrasonic vibrations to excite an oscillatory motion in a free-mass, which then delivers ...
Harkness, Patrick, Li, Xuan, Lucas, Margaret   +2 more
core   +1 more source

Using Ultrasonics to Measure Process Variables

Measurement + Control, 1990
Ultrasonics can be used in industrial processes to measure a number of variables. Liquid level can be determined by pulse-echo techniques. Flowrates can be measured by time-of-flight or doppler methods.
J A McKnight, A Clare
doaj   +1 more source