Results 81 to 90 of about 3,217,305 (276)

A New Design of the Tooth Profile for Single Screw Compressors [PDF]

, 2012
The wear of star wheel teeth is an importance issue in the single screw compressor. In order to enhance the wearresistance of star wheel teeth, some new profiles of the meshing pair were proposed to replace the currently used straight line envelope ...
Feng, Quanke, Wu, Weifeng, Liu, Feilong, Li, Jian   +3 more
core  

First Record of Tasmanian Devils in the Pilbara: Late Quaternary Subfossils From Juukan Gorge, Puutu Kunti Kurrama Country, and Insights Into Human—Faunal Relationships and Extinction

Archaeology in Oceania, EarlyView.
ABSTRACT This study presents the first unequivocal evidence for the presence of Tasmanian devils (Sarcophilus harrisii) in the Pilbara region of northwestern Australia, based on material recovered from archaeological excavations at Juukan Gorge on Puutu Kunti Kurrama and Pinikura country.
Timothy J. Churchill, Michael Slack, Elise Matheson, Liam Neill, Wanchese M. Saktura, Gavin Ashburton   +5 more
wiley   +1 more source

Safety of proton pump inhibitors in children: A systematic review

British Journal of Clinical Pharmacology, EarlyView.
Aim To systematically evaluate the safety of proton pump inhibitor (PPI) therapy in children aged 0–12 years, with a focus on treatment‐emergent adverse events across different study designs and age groups. Method The systematic review was carried out according to the Preferred Reporting Items for Systematic Reviews and Meta‐Analyses (PRISMA ...
Ahmad Raza Sachel, Michael Rieder, Geert W. 't Jong   +2 more
wiley   +1 more source

Design Technique Research of Fine-Forged Spur Bevel Gear Tooth Profile Modification

, 2010
Gear tooth profile modification can be featured to improve working stability of gear equipments, abate noise and vibration, enhance loading ability and prolong usage life of the gears.
Huan Yong Cui, Xi Jie Tian, Dong Liang Wang   +2 more
core   +1 more source

Optimized micro‐sized cell sphere‐matrix niche co‐aggregates promote efficient oral and craniomaxillofacial bone regeneration

BMEMat, EarlyView.
The construct of cell‐niche co‐aggregates (GelMA‐SHED sphere‐DDMPs) promotes cranial and periodontal bone regeneration and ensures angiogenic‐osteogenic coupling by downregulating miR‐34c‐5p to enhance the expression of NOTCH1 and its intracellular domain (NICD).
Xiao‐Hui Zhang, Shi‐Han Mu, Yi‐Han Xiao, Lu‐Fan Yang, Peng‐Fei Wang, Teng‐Fei Hu, Jun‐Xi He, Jiong‐Zhen Piao, Sha Zhang, Jin‐Yu Liu, Yi‐De He, Ying‐Ying Wu, Si‐Qi Ying, Xin‐Yue Cai, Chen‐Han Li, Zi‐Qi Zhang, Xiao Lei, Ji Chen, Jian‐Fei Liang, Yan Jin, Bing‐Dong Sui, Chao Ma, Chen‐Xi Zheng, Fang Jin   +23 more
wiley   +1 more source

A biomechanical optimized Zr58Cu25Al14Nb3 bulk metallic glass dental implant improves peri‐implant stress distribution and bone quality under physiological loading

BMEMat, EarlyView.
This study reports a novel Zr58Cu25Al14Nb3 bulk metallic glass that possesses high mechanical strength and low elastic modulus, which further promotes efficient mechanotransduction and significantly improves peri‐implant bone quality upon cyclic occlusal loading.
Yunshu Wu, Feifei Wang, Yuan He, Yaopeng Zhang, Yuhao Zeng, Fu Zheng, Zhanqi Wei, Sukun Tian, Kinon Chen, Baoan Sun, Yuchun Sun   +10 more
wiley   +1 more source

Beyond antimicrobials: Ecological nano‐strategies for rebalancing dysbiotic oral microbial homeostasis

BMEMat, EarlyView.
Oral microbial homeostasis, a dynamic host‐microbe balance, is vital in infectious diseases. Conventional antibiotics often disrupt this homeostasis, spurring interest in nanomaterials for oral microbial homeostasis rebalancing. This review outlines nanomaterial strategies across three ecological levels (population/community, ecosystem, and cross ...
Chen Hu, Aohan Luan, Yujun Yang, Linlin Wang, Huilin Wang, Ning Wang, Guixin He, Yajie Yang, Rabiya Noor, Jawad Hussain, Longquan Shao   +10 more
wiley   +1 more source

Research on the matching relation between the profile-shifted coefficients and tooth profile modification parameters of heavy-duty gear pairs

Jixie chuandong
ObjectiveTo achieve reasonable matching between the gear modification coefficient and tooth profile modification parameters and improve gear meshing performance, a meshing excitation calculation model for gear transmission systems considering both gear ...
CHEN Qingjian, LI Zhengfa, LIN Li, CHEN Zaigang   +3 more
doaj  

Five‐year tomographic and clinical evaluation of the socket shield technique: Case report

Clinical Advances in Periodontics, EarlyView.
Abstract Background The socket shield technique, one modality of partial extraction therapy, aims to preserve periodontal tissues and maintain the buccal alveolar bone volume following immediate implant placement or in prosthetic pontic sites, by the strategic maintenance of a tooth root fragment.
Renan Dalla, Khalila C. Cotrim, Rafael A. Siqueira, Eduardo C. Kalil   +3 more
wiley   +1 more source

Tooth Surface Reconstruction and Tooth Profile Geometric Analysis of Circular Arc Tooth Trace Cylindrical Gears [PDF]

, 2019
To reconstruct the tooth surface of a circular arc tooth trace cylindrical gear (CATT gear), one needs to create an accurate 3D model and investigate geometric features of the tooth profile.
Yang, Hang, Ye, Zhenhuan, Ma, Dengqiu
core   +1 more source