Results 131 to 140 of about 3,846 (166)

Mycobacterial Spindle Cell Pseudotumor in an 18-Year-Old Female With Congenital HIV: A Case Report and Literature Review. [PDF]

Case Rep Med
Aminparast Z, Shakibaee Fard Z, Khodaei A.   +2 more
europepmc   +1 more source

Some of the next articles are maybe not open access.

Related searches:

Design of Carbon Fiber Composite Shafts for High Speed Air Spindles

Composite Structures, 2002
For the stable operation of high speed air spindles, the low rotational inertia and high damping ratio of spindle shafts as well as high fundamental natural frequency are indispensable. Conventional steel spindles are not appropriate for high speed operation because of their high rotational inertia and low damping ratio. In this study, a high-speed air
Dai Gil Lee
exaly   +2 more sources

Dynamic Analysis of Slender Shaft in Twin-Spindle Turning

Applied Mechanics and Materials, 2011
Machining slender workpiece is still a technical difficulty. This paper investigates the dynamic behavior of a slender shaft subject to constant feedrate moving cutting forces in twin-spindle turning process. The Euler-Bernoulli theory is used to model the rotating shaft.
Min Qing Jing
exaly   +2 more sources

Evaluation of R404a Single Loop Thermosyphon for Shaft Cooling in Motorized Spindle

Applied Thermal Engineering, 2018
Abstract In this study, a single loop thermosyphon charged with refrigerant R404a was investigated for shaft cooling in a motorized spindle. Tests were performed for a heating power range of 20–200 W, evaporation temperatures between 20 °C and 72 °C, and filling ratio (FR) of 30–80%.
Li Fajing, Jianmin Gao, Xiaojun Shi
exaly   +2 more sources

Experimental Investigation of Single Loop Thermosyphons Utilized in Motorized Spindle Shaft Cooling

Applied Thermal Engineering, 2018
Abstract In this paper, a shaft cooling structure of a grinding motorized spindle was designed based on loop thermosyphons. The evaporation and condensation sections of the loop thermosyphons were located on the same tube due to the thermal conductivity of the shaft.
Li Fajing, Feng Liang, Jianmin Gao
exaly   +2 more sources

Experimental Investigation of an R600a Two-Phase Loop Thermosiphon to Cool a Motorized Spindle Shaft

International Communications in Heat and Mass Transfer, 2018
Abstract This paper has presented a novel method for cooling a motorized spindle shaft based on two-phase loop thermosiphons (TPLTs) which have a high heat transfer performance and work without external power. The evaporator section and the condenser section of the TPLT were on the same pipeline due to the thermal conduction of the shaft in the ...
Li Fajing, Feng Liang, Jianmin Gao
exaly   +2 more sources

A Computational Technique for the Static Analysis of Multi-Support Spindle Shafts With Nonlinear Elastic Bearings

2020 IEEE KhPI Week on Advanced Technology (KhPIWeek), 2020
In this paper a mathematical model and a computational technique for the static analysis of multi-support stepped spindle shafts on nonlinear elastic supports are presented. On the basis of the Timoshenko differential equation of the beam's bent axis and the method of initial parameters, a resolving system of equations is obtained that takes into ...
Oleksiy Kyrkach, Valeriy Khavin, Inna Khavina   +2 more
exaly   +2 more sources

Influence of Centrifugal Force on Characteristics of Turbine Shaft for Micro-Spindle for Micro-Cutting

Advanced Materials Research, 2012
The centrifugal force has great influence on characteristics of the turbine shaft. The changes of stress, diameter and natural frequency of the turbine shaft for self-developed micro-spindle for micro-cutting following with the rotational speed were studied by finite element (FE) simulation, which showed that stress, diameter of the turbine shaft and ...
Zhi Zhou
exaly   +2 more sources

A numerical study on rotating-shaft spindles with nonlinear fluid-dynamic bearings

IEEE Transactions on Magnetics, 2005
The purpose of this paper is to present a numerical model predicting the shock response of a rotating-shaft spindle motor with nonlinear fluid-dynamic bearings (FDBs). The paper consists of three parts. The first part is to modify an existing linear spindle vibration model to include arbitrary FDB nonlinearity.
null Jungkeun Yoon, I.Y. Shen
openaire   +2 more sources