Results 21 to 30 of about 17,854 (262)

Analysis and Optimization of Truck Windshield Defroster

open access: yesApplied Sciences, 2020
Frosting and fogging of automobile windshields is a common problem that emerges in daily driving. It is important and essential to quickly and completely defrost the windshield for safety purposes.
Zhilong He   +4 more
doaj   +1 more source

Innovation tools of economic development of the enterprise [PDF]

open access: yesЭкономика региона, 2012
Ways to generate new economic and financial benefits from the practice of rationalization work in the industrial enterprise are considered. An attempt to combine the practice rationalization work with the capabilities of tools and techniques of the ...
Fedor Pavlovich Zotov   +1 more
doaj   +1 more source

Multipurpose conversion of marine diesel engines when creating piston motor-compressor units [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2021
This paper present an assessment of the energy efficiency of various combinations of piston stages of an internal combustion engine, a compressor, and a Rankine engine as part of piston motor-compressor units based on modernized marine diesel engines ...
V. L. Yusha   +6 more
doaj   +1 more source

Experimental and Numerical Investigation of Tip Leakage Flows in a Roots Blower

open access: yesDesigns, 2020
Computational fluid dynamics (CFD) can help in understanding the nature of leakage flow phenomena inside the rotary positive displacement machines (PDMs).
Shuaihui Sun   +3 more
doaj   +1 more source

Comparative analysis of single-stage reciprocating compressor compressing different gases [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2019
Ensuring the efficient and reliable operation of reciprocating compressors is an important issue. The quality of the designed equipment is determined by the level of knowledge of the object and the perfection of methods for calculating its state.
A. A. Kotlov, A. B. Burakov
doaj   +1 more source

A New Dynamic Balance Framework Based on Blind Source Separation under Multiple Fault Conditions

open access: yesShock and Vibration, 2022
Accordingly, the mass unbalance of the rotors is usually the major cause of excessive vibration. The information extracted at the fundamental frequency is often employed to fix the unbalance issue.
Bo Lang   +4 more
doaj   +1 more source

Clinical, Histopathological, and Molecular Characterization of Pediatric MN1::ZNF341‐Associated Cancer

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT A lethal round‐cell malignancy with an MN1::ZNF341 fusion has recently been reported in three infants. Here, we describe four further tumors, three in newborns (including monozygotic twins), and one in an adolescent. Detailed clinical, radiological, and histopathological data differentiate these tumors from their main mimics, neuroblastoma and
Thomas R. W. Oliver   +25 more
wiley   +1 more source

Design methodology and performance analysis of the asymmetric single-tooth claw-type rotor profile [PDF]

open access: yesInternational Journal of Fluid Engineering
The asymmetric single-tooth claw-shaped rotor profile offers significant potential for the application of oil-free compressors, and enhancing its fluid performance becomes particularly important. This study develops its mathematical generation models and
Dantong Li   +6 more
doaj   +1 more source

Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan   +18 more
wiley   +1 more source

Study on Characteristics of the Vibration and Noise of High-Power Scroll Compressor

open access: yesShock and Vibration, 2021
With the rapid development of a high-power scroll compressor (HSC), the dynamic performance of a scroll compressor has an important impact on the vibration and noise of the whole compressor.
Chuang Wang   +4 more
doaj   +1 more source

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