Results 91 to 100 of about 2,746,732 (353)

State of the Art of Low‐Frequency Acoustic Modulation: Intensity Enhancement and Directional Control

Advanced Science, EarlyView.
High intensity low‐frequency sound sources hold significant value in many fields. However, their long wavelength, strong penetrability, and tendency to diffract make direction control and intensity enhancement challenging. Acoustic generators and metamaterial‐based acoustic devices still face issues such as low energy efficiency, poor directional ...
Jingsong Xu, Yunfeng Ye, Tao Dong, Zhaochu Yang, Nuno Miguel Matos Pires, Yu Zhou, Fuyu Tao, Jin Wang, Junshan Zhang, Guoxi Luo, Libo Zhao, Qi Mao, Yangtao Wang, Zhuangde Jiang   +13 more
wiley   +1 more source

Comparative study on the detection of early dental caries using thermo-photonic lock-in imaging and optical coherence tomography [PDF]

, 2018
Early detection of dental caries is known to be the key to the effectiveness of therapeutic and preventive approaches in dentistry. However, existing clinical detection techniques, such as radiographs, are not sufficiently sensitive to detect and monitor
Shokouhi, Elnaz B., Razani, Marjan, Gupta, Ashish, Tabatabaei, Nima   +3 more
core   +1 more source

A MXene‐Based Nanothermal Knife Inhibits Aggresome‐Mediated Persister Formation for Preventing Dental Caries

Advanced Science, EarlyView.
Early childhood caries (ECC) involves cariogenic persisters that evade antimicrobial treatment. Persisters achieve this by downregulating heat shock proteins (HSPs) and formation of protein aggregates. Ti3C2 MXene‐based photothermal therapy (PTT) acts as a “nanothermal knife,” disrupting membranes, upregulating HSPs, inhibits aggregates, prevents ...
Yinyin Zhang, Leilei Yang, Jing jiao, Wenshuai Li, Sen Lin, Xianlong Zong, Haoyang Qin, Danfeng Liu, Rui Li   +8 more
wiley   +1 more source

EFFECTIVITY OF TWO BLEACHING AGENT OF 10% CARBAMIDE PEROXIDE WITH AND WITHOUT POTASSIUM NITRATE-FLUORIDE (CLINICAL STUDY)

Journal of Dentistry Indonesia, 2015
Tooth bleaching has become a popular treatment for esthetic improvement in dentistry. There are several 10% carbamide peroxide bleaching agents that are available in Indonesia which contained potassium nitrate-fluoride or without potassium nitrate ...
Ayus Lusiyanti, Munyati Usman, Safrida Hoesin   +2 more
doaj   +1 more source

Bionic Nanostructures Create Mechanical Signals to Mediate the Composite Structural Bone Regeneration Through Multi‐System Regulation

Advanced Science, EarlyView.
Inspired by the structural and functional characteristics of bone, bionic nanomaterials combined with nanotechnology can more accurately replicate stem cell niches, enabling the design of bone tissue engineering scaffolds with diverse nanoscale properties to promote stem cell migration, proliferation, and differentiation. This precise control over stem
Yangfan Pei, Yihan Wang, Jingxia Chen, Jing Zhou, Yuzhu Han, Xiuyu Liu, Siyu Chen, Sheng Chen, Dixin He, Yunxiao Wu, Huixin Lv, Yanmin Zhou   +11 more
wiley   +1 more source

Optimal Design of IPM Motors With Different Cooling Systems and Winding Configurations [PDF]

, 2016
Performance improvement of permanent magnet (PM) motors through optimization techniques has been widely investigated in the literature. Oftentimes the practice of design optimization leads to derivation/interpretation of optimal scaling rules of PM ...
Demerdash, Nabeel, Fatemi, Alireza, Ionel, Dan M., Nehl, Thomas W.   +3 more
core   +1 more source

On the modelling of spur and helical gear dynamic behaviour [PDF]

, 2012
This chapter is aimed at introducing the fundamentals of spur and helical gear dynamics. Using three-dimensional lumped models and a thin-slice approach for mesh elasticity, the general equations of motion for single-stage spur or helical gears are ...
Velex, Philippe
core   +3 more sources

In Situ Valence Engineering of Copper Silicate Nanozymes with Enhanced Peroxidase‐Like Catalytic Activity for Oral Disease Detection

Advanced Science, EarlyView.
A novel copper silicate nanozyme (CSHSs‐Ar) with high peroxidase‐like catalytic activity and great catalytic specificity is well developed using a facile in situ valence‐engineered approach. The well‐developed CSHSs‐Ar nanozyme‐involved system can be utilized and employed as an efficient colorimetric sensor for the detection of volatile sulfur ...
Xiaocan Liu, Zhen Ding, Chengjing Xu, Jinming Zhang, Yufu Liu, Tianyan Chen, Shuang Dai, Xingfu Bao, Min Hu, Zhen Liu   +9 more
wiley   +1 more source

Bleaching induced tooth sensitivity: do the existing enamel craze lines increase sensitivity? A clinical study [PDF]

Odontology, 2013
The aim of this clinical study was to evaluate whether or not an association exists between the presence of enamel craze lines and the prevalence of tooth sensitivity (TS) after in-office bleaching. Subjects that met the inclusion criteria (N = 23) were screened to detect the existence of enamel craze lines.
Özcan, Mutlu, Abdin, Sam, Sipahi, Cumhur   +2 more
openaire   +6 more sources

Volumetric Engineered 3D Drug Reservoir Against Diabetic Implant Infection via Cuproptosis‐Like Bacterial Death and Hunger‐Triggered Maintenance of Mitochondrial Integrity

Advanced Science, EarlyView.
This study provides a volumetric engineered 3D drug reservoir to combat diabetic implant infection. Cu‐doped quantum dots induce cuproptosis‐like bacterial death via metabolic collapse, while glucose oxidase triggers hunger‐triggered mitochondrial protection in host cells.
Dize Li, Hongrui Qin, Min Jiang, Hongjiang Wei, Hongyong Zhao, Ping Tang, Guangyu Jian, Henny C van der Mei, Tao Chen   +8 more
wiley   +1 more source