Results 81 to 90 of about 10,061 (256)

Measurement System for Non-Cylinder Pin Hole of Piston [PDF]

, 2011
Aim to the low measuring precision of non-cylinder pin hole using the coordinate measuring machine(CMM)and pneumatic measuring instrument, a new solution is proposed which use the high-precision digital lever probe to detect the contours of pin hole with
F. Yang, Z. Y. Yang, D. H. Liu, Z. G. Xie, Y. Huang   +4 more
core   +1 more source

Effects of Biotin on a Fluorescein‐Based Photosensitizer Revealed by Multiscale Computational Modeling

Chemistry – A European Journal, EarlyView.
Biotinylation of a fluorescein‐based photosensitizer enhances its performance in PDT through a synergistic dual action. In addition to Type II singlet oxygen generation common to both dyes, the biotinylated system induces stronger membrane perturbation and higher local accumulation in lipid membranes, associated with increased water permeability and ...
Valeria Butera, Alessandra Gilda Ritacca, Giampaolo Barone, Nino Russo, Marta Erminia Alberto   +4 more
wiley   +1 more source

Experimental study on jet pulse assembly design and numerical simulation

Petroleum Science, 2019
Jet pulse assembly is one of the main components of jet hydraulic oscillator. The pressure wave characteristics produced by jet pulse assembly have an important influence on the performance of the tool.
Liang Xue, Hu Han, Dian Wang, Xian-Bo Liu, He Liu, Zhi-Qiang Yu   +5 more
doaj   +1 more source

Investigating the Cytoskeleton of DRGs Using Cryo‐Electron Microscopy and Deep Learning

Cytoskeleton, EarlyView.
ABSTRACT We describe a method for determining the ultrastructural organization of axons and varicosities of cultured dorsal root ganglion (DRG) neurons using cryogenic electron microscopy (cryo‐EM). Cryo‐EM reveals the dimensions, proximity, and overall organization of biological specimens in a near‐native state, avoiding artifacts of fixation and ...
M. Neal Waxham, Mihir Relan, Matthew T. Swulius, Andrea K. H. Stavoe   +3 more
wiley   +1 more source

On the Effect of a Rail Pressure Error State Observer in Reducing Fuel Injection Cycle-to-Cycle Variation in an Opposed-Piston Compression Ignition Engine

Energies, 2018
The fuel injection cycle-to-cycle variation characteristic in an opposed-piston compression ignition engine was investigated experimentally. Based on the optimal Proportion Integration Differentiation (PID) method, a new control method was proposed by ...
Yi Lu, Zhe Zuo, Zhenyu Zhang, Changlu Zhao, Fujun Zhang   +4 more
doaj   +1 more source

An assessment of stress and production rate of sucker rod heat pipes in oil well pumping system

Deep Underground Science and Engineering, EarlyView.
The sucker rod pumping system is the preferred oil extraction technique. The concept about equipping the hollow vacuum space in solid sucker rods with heat pipe has been scrutinized in terms of stress and oil production evaluation. Abstract The implementation of the heat pipe concept in sucker rods for oil pumping systems negates the requirement for an
R. S. Anand, Ang Li, Wenbo Huang, Juanwen Chen, Qingshan Ma, Fangming Jiang   +5 more
wiley   +1 more source

A fast numerical method based on static reduction for the solution of the contact problem of the piston ring

矿业科学学报, 2017
This paper provides a fast method based on static reduction for the solution of the displacements of the piston ring's contact nodes. The nodal displacements and the corresponding nodal forces of the contact nodes are connected by the contact stiffness ...
Liu Yuwei, Li Heyan, Ye Fuhao
doaj  

Micro-stabilised sightline for missile applications [PDF]

, 2012
The feasibility of un-cooled long wave infrared (LWIR) imager line of sight (LOS) stabilization without the use of gimbals has been assessed with the aim of improving the existing performance of electro-optics (EO) sensors.
Smith, L.
core  

Motion planning and control of an installation robot for attitude adjustment of arc parts in underground shield tunneling

Deep Underground Science and Engineering, EarlyView.
Inspired by spiders, the multilegged walk‐through assembling robot for arc parts achieves high‐precision synchronous control under heavy loads through dual‐layer hydraulic pose dynamics modeling and hierarchical pressure optimization, significantly enhancing shield tunneling assembly efficiency and precision.
Quan Xiao, Guofei Xiang, Liang Liao, Lai Wei, Hongli Wang, Songyi Dian   +5 more
wiley   +1 more source

Prediction and Dynamic Simulation Verification of Output Characteristics of Radial Piston Motors Based on Neural Networks

Machines
Radial piston motors are executive components in hydraulic systems, tasked with providing appropriate torque and speed according to load requirements in practical applications.
Chunjin Li, Zhengwen Xia, Yongjie Tang
doaj   +1 more source