Results 41 to 50 of about 912,024 (248)

Experimental Study on the Dynamic Characteristics of Fractured Coal Under Cumulative Impact

open access: yesApplied Sciences
The dynamic characteristics of fractured coal under cumulative impact are an important basis for evaluating the safety and stability of mining engineering. In order to study the dynamic mechanical properties of fractured coal under cumulative impact, the
Jiachen Ma, Fengyin Liu, Lang Song
doaj   +1 more source

Research on the Dynamic Characteristics of Cables Considering the Constraints at Both Ends of the Cables

open access: yesApplied Sciences, 2022
Suspension bridges and arch bridges are important structural forms of bridges in which the cables are the main load-bearing members. The study of dynamic characteristics of the cable is of great significance to the design and operation and maintenance of
Danhui Dan, Xia Liao, Fei Han
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Experimental Study on Dynamic Responses of Floating Offshore Wind Turbines and Its Validation Against the Vector-Form Intrinsic Finite Element Method

open access: yesJournal of Marine Science and Engineering
In this study, a novel rigid–flexible coupled computational model for floating offshore wind turbines (FOWTs) is developed using the vector-form intrinsic finite element (VFIFE) method, named VFIFE-FOWT.
Yu Zhang   +8 more
doaj   +1 more source

Mechanical Mechanism and Dynamic Characteristics of Barge–Whole Bridge Collision Behaviours

open access: yesApplied Sciences, 2022
Collision between a moving ship and a bridge in inner rivers is a frequent occurrence that seriously endanger the safety of the bridge. Existing studies mostly address the action of a ship colliding with a bridge pier that is used as a substitution of ...
Chunhui Xie   +6 more
doaj   +1 more source

Dynamic characteristics of flexural ultrasonic transducers [PDF]

open access: yesProceedings of Meetings on Acoustics, 2017
The flexural ultrasonic transducer is a robust and inexpensive device which can be used as either a transmitter or receiver of ultrasound, commonly used as proximity sensors or in industrial metrology systems. Their simple construction comprises a piezoelectric disc bonded to a metal cap, which is a membrane that can be considered as a constrained ...
Feeney, Andrew   +3 more
openaire   +3 more sources

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

Re-evaluation on rockfall risk at tunnel entrances and exits during the construction phase of Yichang—Zhengwan high speed railway connection line

open access: yesZhongguo dizhi zaihai yu fangzhi xuebao
The new Yichang—Zhengwan high speed railway connection line crosses the eastern edge of the Dabashan arc tectonic belt in the Qinling orogenic belt, with strong neotectonic movement, mixed stratigraphic lithology, large topographic relief, and a large ...
Qiangguo YANG   +3 more
doaj   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

open access: yesFEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes   +3 more
wiley   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

open access: yesFEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

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