Results 11 to 20 of about 20,262 (266)

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

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

Directivity pattern of the sound radiated from square stepped-plate radiators

Acta Acustica, 2020
A square flat-plate radiator driven by a longitudinal vibrator at the resonant frequency of its fourth-order natural vibration mode at its center for the generation of highly directional ultrasonic radiation in air is studied herein.
Xiping He, Na Li
doaj   +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

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

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

Study of Residual Stress Using Phased Array Ultrasonics in Ti-6AL-4V Wire-Arc Additively Manufactured Components

Sensors
This paper presents a study on residual stress measurement in wire-arc additively manufactured (WAAM) titanium samples using the non-destructive method of phased array ultrasonics. The contour method (CM) was used for the verification of the phased array
Joseph Walker, Brandon Mills, Yashar Javadi, Charles MacLeod, Yongle Sun, Pradeeptta Kumar Taraphdar, Bilal Ahmad, Sundar Gurumurthy, Jialuo Ding, Fiona Sillars   +9 more
doaj   +1 more source

Gold Nanoclusters-Based NIR-II Photosensitizers with Catalase-like Activity for Boosted Photodynamic Therapy

Pharmaceutics, 2022
Photodynamic therapy (PDT) under fluorescence imaging as a selective and non-invasive treatment approach has been widely applied for the therapy of cancer and bacterial infections.
Qing Dan, Zhen Yuan, Si Zheng, Huanrong Ma, Wanxian Luo, Li Zhang, Ning Su, Dehong Hu, Zonghai Sheng, Yingjia Li   +9 more
doaj   +1 more source