Results 101 to 110 of about 12,399 (244)

Design Manufacture and Performance Test of a Reciprocating Refrigeration Compressor

Hittite Journal of Science and Engineering, 2018
The first generation of refrigeration compressors is reciprocating type compressors, the second generation is scroll type, and the third generation is screw type compressors that are available on the market.
Deniz Uzunsoy, Hüseyin Lekesiz, Yusuf Ali Kara, Mustafa Gürkan Aydeniz   +3 more
doaj   +1 more source

Tribological Performance of 60NiTi Alloy Under Varying Contact Conditions and Elevated Temperatures in Linear Reciprocating Sliding

Advanced Engineering Materials, Volume 28, Issue 9, 6 May 2026.
This study investigates the tribological response of 60NiTi alloy under dry, water‐lubricated and high‐temperature conditions. The alloy exhibits decreasing wear volume and friction with increasing temperature due to the formation of protective oxide layers. The work clarifies dominant wear mechanisms and demonstrates the suitability of 60NiTi for high‐
Anthony Onyebuchi Okoani, Miguel Angel Selles, Maziar Ramezani   +2 more
wiley   +1 more source

Urinary Extracellular Vesicles for High‐Precision Bladder Cancer Subtyping and Prognosis

Journal of Extracellular Biology, Volume 5, Issue 5, May 2026.
ABSTRACT Bladder cancer (BCa) exhibits molecular heterogeneity that complicates early diagnosis and prognosis, and drives confounding clinical outcomes. Non‐muscle invasive and muscle‐invasive subtypes, especially for intermediate to high grade, carry a 25%–50% progression‐free survival rate, underscoring the need for high‐precision prognostic strategy.
Zachary F. Greenberg, Tarun Hutchinson, Jonathan Kahn, Kiley S. Graim, Padraic O'Malley, Mei He   +5 more
wiley   +1 more source

Imaging gas in a combustion engine with high‐energy X‐ray Compton scattering

Journal of Synchrotron Radiation, Volume 33, Issue 3, Page 788-793, May 2026.
Compton‐scattering imaging has been applied to a combustion engine under operation for the first time. With a time‐resolved technique, a crank‐angle dependency of Compton‐scattered X‐ray intensity is obtained at different positions in a combustion chamber.We have developed a time‐resolved Compton‐scattering imaging technique for visualizing gas ...
Yuki Mizuno, Hiroaki Suzuki, Naruki Tsuji, Takuyo Oguchi, Go Matsubara, Hiroyuki Yamase, Yoshiharu Sakurai   +6 more
wiley   +1 more source

Time‐Dependent Debridement Quality of the SAF Infinitum System in Flat‐Shaped Root Canals

International Endodontic Journal, Volume 59, Issue 5, Page 903-913, May 2026.
ABSTRACT Aim To evaluate the shaping ability, debris removal efficiency and morphological alterations induced by the SAF Infinitum system during progressive instrumentation of flat‐shaped root canals of mandibular incisors. Methodology Twelve extracted mandibular incisors with flat‐shaped canals were selected using micro‐CT and instrumented with 1.5‐mm
Marco A. Versiani, Michael Solomonov, Felipe G. Belladonna, Emmanuel J. N. L. Silva, Erick Souza, Rebecca R. G. Frota, Joe Ben‐Itzhak, Gustavo De‐Deus   +7 more
wiley   +1 more source

Research requirements for development of regenerative engines for helicopters [PDF]

The improved specific fuel consumption of the regenerative engine was compared to a simple-cycle turboshaft engine. The performance improvement and fuel saving are obtained at the expense of increased engine weight, development and production costs, and ...
Semple, R. D.
core   +1 more source

Generative Adversarial Networks Selection Approach for Extremely Imbalanced Fault Diagnosis of Reciprocating Machinery [PDF]

, 2019
At present, countless approaches to fault diagnosis in reciprocating machines have been proposed, all considering that the available machinery dataset is in equal proportions for all conditions.
Cabrera, Diego, Cerrada, Mariela, Li, Chuan, Long, Jianyu, Sancho Caparrini, Fernando, Sánchez, René-Vinicio, Zhang, Shaohui   +6 more
core  

Assessment of the impact of shaped nozzles installed inside the pipeline on the energy efficiency of compressed gas systems. [PDF]

Sci Rep, 2023
Młynarczyk P, Brewczyński D, Krajewska-Śpiewak J, Chmielarczyk K, Błądek J, Lempa P.   +5 more
europepmc   +1 more source

Advanced turbocharger design study program [PDF]

The advanced Turbocharger Design Study consisted of: (1) the evaluation of three advanced engine designs to determine their turbocharging requirements, and of technologies applicable to advanced turbocharger designs; (2) trade-off studies to define a ...
Culy, D. G., Heldenbrand, R. W., Richardson, N. R.   +2 more
core   +1 more source

Study on an Energy-saving Durability Test System for Reciprocating Refrigeration Compressor

Zhileng xuebao, 2013
This paper proposes an energy-saving system which is used to test the reliability of reciprocating refrigeration compressor. This system is established based on the principle of condensing of the partial refrigerant with high temperature and high ...
Wang Feng, Mi Xiaozhen
doaj