Results 101 to 110 of about 1,313,832 (317)

Dynamics of Multistage Gear Transmission with Effects of Gearbox Vibrations [PDF]

open access: yes
A comprehensive approach is presented in analyzing the dynamic behavior of multistage gear transmission systems with the effects of gearbox induced vibrations and mass imbalances of the rotor.
Choy, F. K.   +3 more
core   +1 more source

Al-Mg systematics of hibonite-bearing Ca,Al-rich inclusions from Ningqiang [PDF]

open access: yes, 2011
Hibonite-bearing Ca,Al-rich inclusions (CAIs) usually occur in CM and CH chondrites and possess petrographic and isotopic characteristics distinctive from other typical CAIs.
Guan, Yunbin, Hsu, Weibiao, Wang, Ying
core  

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

open access: yesMolecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source

Development of small bore, high speed tapered roller bearing [PDF]

open access: yes
The performance of four rolling bearing configurations for use on the input pinion shaft of a proposed commercial helicopter transmission was evaluated.
Bovenkerk, R. L.   +2 more
core   +1 more source

Loss of IGF‐1R impairs DNA‐PKcs recruitment to chromatin leading to defective end‐joining

open access: yesMolecular Oncology, EarlyView.
IGF‐1R promotes radioresistance by facilitating DNA‐PKcs recruitment to chromatin, enabling non‐homologous end‐joining (NHEJ) repair of double‐strand breaks. Inhibition or loss of IGF‐1R disrupts this recruitment to damage sites, driving compensatory reliance on microhomology‐mediated end‐joining (MMEJ) repair.
Matthew O. Ellis   +3 more
wiley   +1 more source

Three-Dimensional Discrete Element Analysis of Bearing Characteristics of Concrete–Cored Sand–Gravel Pile Composite Foundation under Cyclic Dynamic Load

open access: yesBuildings
Concrete-cored sand–gravel piles are a kind of composite pile formed by wrapping a concrete-cored pile with a sand–gravel shell, which has the advantages of both a rigid pile and bulk-material pile.
Binhui Ma   +4 more
doaj   +1 more source

Bearing tester data compilation, analysis and reporting and bearing math modeling, volume 1 [PDF]

open access: yes
Thermal and mechanical models of high speed angular contact ball bearings operating in LOX and LN2 were developed and verified with limited test data in an effort to further understand the parameters that determine or effect the SSME turbopump bearing ...
Marshall, D. D.   +4 more
core   +1 more source

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

open access: yesFEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point   +7 more
wiley   +1 more source

Review of research progress on the theory and bearing characteristics of post-grouting for prestressed concrete pipe pile ends and sides

open access: yes河南理工大学学报. 自然科学版
Significance Post-grouting of pipe piles is an effective technique for improving the physical and mechanical properties of the pile-soil interface, playing a significant role in enhancing the frictional resistance of pipe piles and reducing settlement of
HOU Zhenkun   +7 more
doaj   +1 more source

DYNAMIC CHARACTERISTICS OF ROTOR-BEARING SYSTEM AND EVOLUTION OF BEARING WEAR (MT)

open access: yesJixie qiangdu, 2022
Taking the rotor system supported by angular contact ball bearing as the research object, the dynamic model of rotor bearing system is established by using Lagrange equation. Based on the Archard wear model, the calculation model of wear depth of bearing
WEI Lai   +3 more
doaj  

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