Results 51 to 60 of about 1,313,832 (317)

Thermo-Elasto-Hydrodynamic Characteristics Analysis of Journal Microbearing Lubricated with Rarefied Gas

open access: yesMicromachines, 2020
Temperature rise and elastic deformation are unavoidable issues occurring in high-speed gas microbearings due to the dominant small-scale fluid dynamics in rarefied gas flow applications.
Yao Wu, Lihua Yang, Tengfei Xu, Wei Wu
doaj   +1 more source

Magnetic bearing and motor [PDF]

open access: yes, 1983
A magnetic bearing for passively suspending a rotatable element subjected to axial and radial thrust forces is disclosed. The magnetic bearing employs a taut wire stretched along the longitudinal axis of the bearing between opposed end pieces and an ...
Studer, P. A.
core   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

DYNAMIC INSTABILITY CHARACTERISTICS OF ROLLING ELEMENT BEARINGS

open access: yes24th International Conference on Sound and Vibration 2017, London Calling
The dynamics of bearing is a classical problem in machinery vibration. It is well known that rolling element bearings are susceptible to large vibration response at suitable parameter values arising due to instability. In the present work, we formulate the governing equations of motion of rolling element bearings.
Panat, S   +3 more
openaire   +2 more sources

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

Dynamic characteristics of misaligned journal bearing.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1985
本論文は傾いたジャーナルを有する部分ジャーナル軸受の動特性計算法について明らかにした.本計算法においては,ミスアライメントの大きさと方向を表す三つのパラメータ,すなわち偏心率,軸心投影長さ,軸心姿勢角を用いて油膜厚さを表現している.ミスアライメント軸受に対する32個の特性値を明らかにした結果,ミスアライメントがこれらの特性値に与える影響は非常に大きいことが明らかになった.
Toshimasa SAITO, Kohei MATSUMOTO
openaire   +2 more sources

The performance and application of high speed long life LH2 hybrid bearings for reusable rocket engine turbomachinery [PDF]

open access: yes
Data are presented for two different experimental programs which were conducted to investigate the characteristics of a hybrid (hydrostatic/ball) bearing operating in liquid hydrogen. The same bearing design was used in both programs.
Hannum, N. P., Nielson, C. E.
core   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

TRIBOTECHNICAL CHARACTERISTICS OF CARBON-BEARING LUBRICANTS [PDF]

open access: yesProccedings of International Scientific Conference "BALTTRIB 2017", 2017
The development of technology for manufacturing nanostructured substances in amounts that could suffice an interlaboratory research is a high priority task for the implementation of nanoproducts. The ultra dispersiblis clusters of synthetic carbon are used as on extra component in polymeric materials.
А. Voznyakovskii   +3 more
openaire   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy