Results 21 to 30 of about 4,970,035 (308)

On the stability of high-speed milling with spindle speed variation [PDF]

, 2010
Spindle speed variation is a well-known technique to suppress regenerative machine tool vibrations, but it is usually considered to be effective only for low spindle speeds.
BP Mann, E Al-Regib, E Budak, E Solis, F Yang, Gilles Dessein, Grégoire Peigné, GS Duncan, H Paris, H Zhang, J Tlusty, J Tlusty, JS Sexton, JS Sexton, JS Sexton, Lionel Arnaud, M Zatarain, MA Davies, ML Campomanes, ND Sims, PV Bayly, R Radulescu, RPH Faassen, S Jayaram, S Sastry, S Seguy, S Seguy, S Smith, SA Tobias, SC Lin, SD Merdol, Sébastien Seguy, T Insperger, T Insperger, T Insperger, T Insperger, T Surmann, T Takemura, Tamás Insperger, TC Tsao, XH Long, Y Altintas, Y Altintas, Y Altintas   +43 more
core   +4 more sources

Status of research on non-conventional technology assisted single-point diamond turning

Nanotechnology and Precision Engineering, 2023
With the increasing use of difficult-to-machine materials in aerospace applications, machining requirements are becoming ever more rigorous. However, traditional single-point diamond turning (SPDT) can cause surface damage and tool wear.
Zhuang Chen, Guangjun Chen, Zhiwei Yu, Jiashuai Huang, Hong Wei   +4 more
doaj   +1 more source

Numerical Study of Nonadiabatic Wall Effects on Aerodynamic Characteristics of CHN-T1 Standard Model

Aerospace, 2023
Cryogenic wind tunnels provide the for possibility aerodynamic tests to take place over high Reynolds numbers by operating at a low gas temperature to meet the real flight simulation requirements, especially for state-of-the-art large transport aircrafts.
Xiaobing Wang, Junqiang Wu, Jianzhong Chen, Yuping Li, Zhongliang Zhao, Guangyuan Liu, Yang Tao, Neng Xiong   +7 more
doaj   +1 more source

Study on Flow Mechanism of a Morphing Supercritical Airfoil

Shock and Vibration, 2021
In order to maintain the best performance in flight, a new concept, morphing aircraft, has been proposed, which can change the real-time aerodynamic characteristics under different flight conditions.
Yuanjing Wang, Binbin Lv, Pengxuan Lei, Wenkui Shi, Yu Yan   +4 more
doaj   +1 more source

Speed in a high-speed society [PDF]

International Journal of Injury Control and Safety Promotion, 2019
Speed control is the most important aspect of promoting road safety world-wide. The question is how are speeds developing? The European Transport Safety Council concludes: There is little progress on reducing speeds in Europe. Similar conclusions can be drawn from the US and Australia. Attitude surveys show that people's answers are not very consistent
openaire   +2 more sources

High-speed sludge freezing [PDF]

Water Research, 2001
The investigation examined the feasibility of applying a "high-speed freezing technique, using liquid nitrogen freezing, to condition activated sludges and alum sludges. Experimental results indicate that the freezing speed is much faster than that adopted in most previous works on sludge freezing.
Chen, L. C., Chian, C. Y., Yen, P. S., Chu, C. P., Lee, D. J.   +4 more
openaire   +2 more sources

A Study on the Measuring System of Contact Force of Pantograph for the High-Speed Train

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2012
The overhead pantograph for the high speed train is a mechanical and electrical part mounted on the train roof to supply the train with electrical power from the catenary system.
Jin-Sung PAIK, Chan-Kyoung PARK, Yong-Guk KIM, Ki-Hwan KIM   +3 more
doaj   +1 more source

Sand Penetration By High-Speed Projectiles [PDF]

, 2009
Tungsten projectiles were shot into sand at velocities between 600 and 2200 m/s. Penetration was maximum at about 775 m/s. Below that velocity, projectiles were apparently stabilized by a fin set.
Berry, D. T., Bless, S. J., Lawhorn, W., Pedersen, B.   +3 more
core   +1 more source

Why and When Are Evidence‐Based Interventions Adopted in Paediatric Supportive Care? A Qualitative Exploration of the Determinants of Photobiomodulation Implementation

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Oral mucositis is a common and debilitating side effect of childhood cancer and stem cell transplant treatments. It affects the quality of life of children and young people (CYP) and places a strain on services. Photobiomodulation is recommended for oral mucositis prevention in international guidance but is poorly implemented in UK ...
Claudia Heggie, Kara A. Gray‐Burrows, Peter F. Day, Bob Phillips, Carl A. Thompson   +4 more
wiley   +1 more source

High speed shutter [PDF]

, 1974
A shutter element is described which is formed by a loop of an electrically conductive ribbon disposed adjacent to the end of a passageway to be shuttered. The shuttered end of the passageway is cut at an acute angle.
Mcclenahan, J. O.
core   +1 more source