Results 51 to 60 of about 4,776,728 (268)

Investigation of the Pressure Fluctuation of Piston Chambers with Variable Slot Geometry

open access: yesMachines, 2023
High-pressure fluctuation and flow ripple may cause unexpected vibration and noise when the piston pump works under severe conditions, and eventually lead to hydraulic transmission failure.
Dongyun Wang   +2 more
doaj   +1 more source

Numerical Investigation of Effects of Ripple Type Needle Erosion on Pressure Inside a Pelton Nozzle

open access: yesIOP Conference Series: Earth and Environment
Pelton turbines, a commonly used impulse turbine for hydroelectric generation which converts the potential energy of the water into kinetic energy through a needle structure within the nozzle system. However, the exposure of the Pelton turbine components
S. Satyal   +6 more
semanticscholar   +1 more source

Importin 7 mediates the nuclear import of HIV‐1 integrase via a specific interacting interface

open access: yesFEBS Open Bio, EarlyView.
HIV‐1 integrase enables viral DNA integration into the host genome. By binding to the core domain of the host protein Importin 7 via its C‐terminal domain, the integrase is transported across the nuclear membrane into the nucleus, where integration of the viral genome into host DNA takes place. This translocation is a critical step for subsequent viral
Juana Bana   +5 more
wiley   +1 more source

Outlet Pressure and Flow Characteristics of a New Two-Dimensional Piston Pump with an Overlapped Distributor

open access: yesEnergies, 2023
This article presents the design of a two-dimensional (2D) piston pump flow-distribution port with an overlapped structure that reduces backflow in the pump chamber and pressure ripples at the pump outlet, thus minimizing vibration and noise caused by ...
Tong Xing   +4 more
doaj   +1 more source

Optimizing photoexcitation conditions for time‐resolved X‐ray solution scattering experiments

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering (TR‐XSS) is a powerful technique to visualize how proteins change their structure in real time after light activation. Selecting the right laser photoexcitation conditions—fluence, excitation geometry, and sample refresh rate—is critical to maximize the experimental signal while avoiding unwanted side effects ...
Matteo Levantino
wiley   +1 more source

Protocol for quantifying miRNA trafficking across the endosomal membrane

open access: yesFEBS Open Bio, EarlyView.
An in vitro protocol measures miRNA uptake into endosomes isolated from mammalian cell extracts, which are free of subcellular contaminants. Performed at 37 °C in the presence of ATP, it ensures the import of single‐stranded miRNA into the endosomal lumen.
Syamantak Ghosh   +2 more
wiley   +1 more source

Five‐Year Disease Progression in Synuclein Seeding Positive Sporadic Parkinson's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To provide a comprehensive description of disease progression in synuclein seeding assay (SAA) positive sporadic Parkinson Disease participants, using Neuronal Synuclein Disease integrated biological and functional impairment staging framework.
Paulina Gonzalez‐Latapi   +19 more
wiley   +1 more source

Output Ripple Difference and Following Lightweight Design of External Gear Pumps and Motors

open access: yesJixie chuandong, 2023
In order to clarify the different output mechanism and following ripple difference between external gear pump and motor, based on the reverse design method from performance to gear parameter and special involute feature without undercut, from the contact
Wang Hao, Song Anran, Li Yulong
doaj  

Pressure Rippie in Receivers for Reciprocating Compressors

open access: yesJournal of the Society of Mechanical Engineers, 1949
往復圧縮機の試験の際, 空気槽容積をどの程度に選ぶべきかについては, いろいろな規格があるが, その示すところはきわめてまちまちで, ある方式では他の方式の数十倍も大きく規定し, またある方式では回転数の上昇と共に容積を減少すべしとしているのに, 他の方式では増加すべしとしているなどである.これは主として空気槽の脈動に関する資料が不足していることに原因するのであろう.これらの関係を明らかにするために, 筆者は圧縮機および送風機部門委員会の委嘱によつて, 日立製作所亀戸工場において実験を行い, 比較的適切と思われる脈動の算式を得た.本報告はこの結果である.
openaire   +2 more sources

Subclinical Optic Nerve Involvement in Radiologically Isolated Syndrome: Multimodal Detection and Diagnostic Impact

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives We aimed to determine the frequency of subclinical optic nerve (ON) lesions using MRI, optical coherence tomography (OCT), and visual evoked potentials (VEP) in radiologically isolated syndrome (RIS), and to assess their diagnostic and prognostic significance.
Christine Lebrun‐Frenay   +13 more
wiley   +1 more source

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