Results 61 to 70 of about 795,237 (312)

Hobbing mechanism of worm gear tooth surface with wave edges of double enveloping toroidal worm gearing

Journal of Advanced Mechanical Design, Systems, and Manufacturing
The double enveloping toroidal worm gear pair is a type of basic worm transmission with multi-tooth and double-line contacts. Tooth surfaces of the worm gear are hobbed by a toroidal worm gear hob which is produced based on the toroidal worm.
Xiang MA, Chengjie RUI, Xiaoshuai ZHAO, Zeyi JIA   +3 more
doaj   +1 more source

Discontinuous integral control for mechanical systems [PDF]

2016 14th International Workshop on Variable Structure Systems (VSS), 2016
For mechanical systems we present a controller able to track an unknown smooth signal, converging in finite time and by means of a continuous control signal. The control scheme is insensitive against unknown perturbations with bounded derivative. The controller consists of a non locally Lipschitz state feedback control law, and a discontinuous integral
openaire   +2 more sources

BMT4me En Español: Multisite Feasibility and Usability Testing of a Spanish‐Language mHealth Adherence Support App for Spanish‐Speaking Caregivers of Children After Hematopoietic Stem Cell Transplantation and Cancer Treatment

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Medication nonadherence during the first 100 days after pediatric hematopoietic stem cell transplantation (HSCT) and during oncology treatment increases risk for complications. BMT4me is a caregiver‐facing mobile health (mHealth) application providing medication reminders, symptom tracking, and note‐taking features to support ...
Micah A. Skeens, Madeline R. Peek, Bianca Franklin, Emre Sezgin, Melissa Beauchemin   +4 more
wiley   +1 more source

Motion stabilization in the presence of friction and backlash: a hybrid system approach [PDF]

, 2008
In this paper a hybrid system approach is considered to deal with backlash and friction induced nonlinearities in mechanical control systems. To describe the low velocity frictional behaviour a linearized friction model is proposed. The novelty of this
Lantos, Béla, Márton, Lőrinc
core  

Model-Based State Feedback Controller Design for a Turbocharged Diesel Engine with an EGR System

Energies, 2015
This paper describes a method for the control of transient exhaust gas recirculation (EGR) systems. Firstly, a state space model of the air system is developed by simplifying a mean value model.
Tianpu Dong, Fujun Zhang, Bolan Liu, Xiaohui An   +3 more
doaj   +1 more source

Natural Killer Cells in Paediatric Soft Tissue Sarcomas: A Systematic Review

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Paediatric soft tissue sarcomas (pSTS) are a rare and heterogeneous group of malignant tumours arising in tissues of mesenchymal origin. The role of natural killer (NK) cells in pSTS remains poorly understood, with evidence fragmented across small preclinical studies and early‐phase clinical trials.
Raya Dean, Lara V. Graham, Christina Putnam, Rosa Gomes Alves Martins, Daniel T. Harding, Tim J. Underwood, Zoë S. Walters, Matthew D. Blunt   +7 more
wiley   +1 more source

Algorithm Research Based on an Elliptical Arc Fitting Curve

IEEE Access
The fitting efficiency of lines or arcs fitting methods for various structural designs cannot meet the design requirements, and the fitting accuracy also needs to be improved. Therefore, this paper proposes a novel algorithm that uses a smaller number of
Qingjian Liu, Pei Li, Gangpeng Huang, Xu Zhang, Shuo Liu, Ziyi Yang, Tianze Hao   +6 more
doaj   +1 more source

Effect of Mechanical Microenvironment on Collagen Self-Assembly In Vitro

Journal of Functional Biomaterials, 2023
Collagen, as a structural protein, is widely distributed in the human body. Many factors influence collagen self-assembly in vitro, including physical-chemical conditions and mechanical microenvironment, and play a key role in driving the structure and ...
Leihan Han, Jiexiang Lin, Chengfei Du, Chunqiu Zhang, Xin Wang, Qijin Feng   +5 more
doaj   +1 more source

On Hierarchical Composite Endpoints in Pediatric Cancer Supportive Care: Illustrative Examples From Two Multi‐Center Phase‐III Randomized Clinical Trials

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric supportive care clinical trials often involve multiple clinically important outcomes, complicating trial interpretation. Hierarchical composite endpoints (HCEs) provide a framework to integrate key outcomes according to clinical importance.
Willem H. Collier, Mark Zobeck, Adam J. Esbenshade, Christopher C. Dvorak, Lillian Sung, David Freyer, Sarah Alexander, Etan Orgel, Nicole J. Ullrich, Zach Prudowsky, Brian Fisher, Caitlin W. Elgarten   +11 more
wiley   +1 more source

Numerical study of interstitial fluid flow behavior in osteons under dynamic loading

BMC Musculoskeletal Disorders
Background The porous structure in bone tissue is essential for maintaining the physiological functions and overall health of intraosseous cells. The lacunar-canalicular net (LCN), a microscopic porous structure within osteons, facilitates the transport ...
Tianyu Liu, Baochuan Xiong, Xin Cui, Chunqiu Zhang   +3 more
doaj   +1 more source