Results 21 to 30 of about 825,254 (265)

Comparison-embedded evidence-CNN model for fuzzy assessment of wear severity using multi-dimensional surface images

Friction, 2023
Wear topography is a significant indicator of tribological behavior for the inspection of machine health conditions. An intelligent in-suit wear assessment method for random topography is here proposed.
Tao Shao, Shuo Wang, Qinghua Wang, Tonghai Wu, Zhifu Huang   +4 more
doaj   +1 more source

Research on the Lubrication State of the Contact Interface Under the Tilt and Skew State of the Roller of the Aviation Bearing

Lubricants
The lubrication behavior and mechanical characteristics of the main bearing area of an aero-engine main shaft bearing determine the reliability and life of the main shaft bearing.
Lina Zhou, Xiaofeng Yang, Zhigang Luo, Jingjing Zhang, Zhen Li, Xiaodong Wang   +5 more
doaj   +1 more source

Hospitalization Through Families’ Eyes: Comparing Inpatient Care Quality for Children With Sickle Cell Disease and Cystic Fibrosis in Canada

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Sickle cell disease (SCD) is a chronic, inherited hemoglobinopathy that requires frequent hospitalization for disease‐related complications. Canadian data on inpatient care is limited. This study compared caregiver‐reported hospital experiences of children with SCD to those with cystic fibrosis (CF), a chronic, autosomal recessive ...
Hailey M. Zwicker, Kyle Kemp, Perri Tutelman, Sharon H. J. Hou, Paul Fairie, Maria Santana, Gregory M. T. Guilcher, Taryn Fay‐McClymont, Glenda Bendiak, Wendy Pelletier, Nicola Wright, Fiona Schulte   +11 more
wiley   +1 more source

Analysis on the Dynamic Behavior of Space Shafting under Combined Load

Shock and Vibration
The space shafting is the core component of the momentum exchange attitude control actuator for spacecraft.The dynamic behavior of space shafting has an important impact on the performance of the actuators. Based on the dynamic theory of rolling bearing,
Yan Zhao, Fei Gao, Yulei Xia, Jinfang Gu, Yameng Wang, Sen Zhao   +5 more
doaj   +1 more source

Venous Thromboembolism in Pediatric Bone Sarcoma Patients: A 10‐Year, Single‐Institution Experience Encompassing the COVID‐19 Pandemic

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Osteosarcoma (OS) and Ewing sarcoma (EWS) are the most common primary bone cancers in children, but acute thrombosis is poorly characterized in this population. Our study evaluated the rates of venous thromboembolism (VTE) and associated risk factors in pediatric patients with bone sarcomas treated over a 10‐year period encompassing
Sarah Kappa, Shou Xu, Mark Zobeck, Sarah E. Sartain, Nino Rainusso, Lisa Wang, Nicole Montgomery, Paige Wheaton, Sarah Whittle   +8 more
wiley   +1 more source

Material removal mechanism of copper chemical mechanical polishing with different particle sizes based on quasi-continuum method

Friction, 2017
In this paper, the material removal mechanism of copper chemical mechanical polishing was studied by the quasicontinuum method that integrated molecular dynamics and the finite element method. By analyzing the abrasive process of different particle sizes
Aibin Zhu, Dayong He, Shengli He, Wencheng Luo   +3 more
doaj   +1 more source

Tilting-Pad Journal Bearings—Frequency-Dependent Dynamic Coefficients and Pivot Flexibility Effects

Lubricants, 2022
Tribologists have generally accepted that the dynamic modeling of tilting-pad journal bearings (TPJB) must consider the frequency dependency of the dynamic properties.
Laurence F. Wagner, Paul E. Allaire
doaj   +1 more source

Bear essentials

Trends in Genetics, 2023
Strangely, American black bears come in many colours. New work by Puckett et al. shows that a missense alteration in the gene encoding tyrosinase-related protein 1 (TYRP1) likely interferes with melanin synthesis and is responsible for the cinnamon colour variant in the southwest USA.
openaire   +2 more sources

Heterogeneity in the Global Practice of Central Nervous System Staging in Pediatric Acute Lymphoblastic Leukemia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) involvement in childhood acute lymphoblastic leukemia (ALL) is assessed by cell counting and cytomorphology from cerebrospinal fluid (CSF) and is used for treatment stratification worldwide. The ratio of “CNS2” patients in clinical trials ranges from 3% to 40%, with unclear prognostic significance ...
Laura Almási, Bernadett Borbála Huszti, Gábor Barna, Marko Kavcic, Janez Jazbec, Lennart Lenk, Vera Münch, Sophia Polychronopoulou, Ágnes Márk, Maria Thastrup, Lüder H. Meyer, Kjeld Schmiegelow, Cornelia Eckert, Christina Halsey, Dániel J. Erdélyi   +14 more
wiley   +1 more source

Energy Evolution and Acoustic Emission Precursors for Coal–Rock Instability Under Uniaxial Compression

Advances in Civil Engineering
The prevention of coal–rock dynamic disasters is crucial for ensuring sustainable and safe mining operations, necessitating a precise understanding of crack propagation and precursor signals for accurate hazard prediction.
Gang Jing, Shuai Wang, Jingkai Li, Leilei Zhao, Liqiang Ma, Weiguang Zhang   +5 more
doaj   +1 more source