Results 91 to 100 of about 239,194 (337)

Dynamic modeling for spindle thermal error in machine tools under time-varying rotational speeds and cooling states

Case Studies in Thermal Engineering
To accurately predict and compensate for spindle thermal error under time-varying rotational speeds and cooling states, this paper proposes a novel dynamic thermal error modeling method characterized by a dual-attention-enhanced parallel branch ...
Ji Peng, Ke Yang, Zhirong Zhang, Yebing Mao, Feng Tan, Xiaobing Hu, Ming Yin, Zhoujie Zhao, Longjiang Li   +8 more
doaj   +1 more source

A differential resonator design using a bossed structure for applications in mechanical sensors [PDF]

, 1991
Theory and experimental results are presented of a differential resonator design employing a bossed structure for applications in mechanical sensors.
Bouwstra, Siebe, Elwenspoek, Miko, IJntema, Dominicus J., Klein, Carl F., Tilmans, Harrie A.C.   +4 more
core   +4 more sources

Near‐Infrared Organic Photovoltaic Electrodes for Subretinal Neurostimulation

Advanced Functional Materials, EarlyView.
Organic photovoltaic electrodes based on the D18:Y6 blend enable precise and light‐controlled activation of retinal ganglion cells in a degenerating retina. NIR Light‐driven activation of retinal ganglion cells, tunable stimulation parameters, and biocompatibility with human retinal organoids highlight their potential for next‐generation prosthetics ...
Andrea Corna, Katarina Gugujonovic, Manuela Schiek, Alessandro Bellapianta, Paul Werginz, Amelie Ziller, Markus Clark Scharber, Ahmad Salti, Matthias Bolz, Mihai Irimia‐Vladu, Günther Zeck   +10 more
wiley   +1 more source

Thermal Error Measurement and Analysis of Vertical Machining Center

MATEC Web of Conferences, 2019
In this paper, the thermal calculation and thermal-structural coupling analysis of the vertical machining center are carried out to obtain the theoretical values of thermal generation and thermal displacement. Combined with the thermal structure analysis
Ma Yumeng, Cui Huanyong, Li Changchun, Wu Changzhong, Zhao Zhenyuan   +4 more
doaj   +1 more source

A review on transfer learning in spindle thermal error compensation of spindle [PDF]

Advanced Manufacturing
Data-driven approaches offer unprecedented opportunities for smart manufacturing to facilitate the transition to Industry 4.0-based production. One of the key factors affecting the accuracy of machine tools is the thermal error caused by thermal ...
Yue Zheng, Guoqiang Fu, Sen Mu, Sipei Zhu, Kunlong Lin, Long Yang   +5 more
doaj   +1 more source

Application of multi sensor data fusion based on Principal Component Analysis and Artificial Neural Network for machine tool thermal monitoring [PDF]

, 2015
Due to the various heat sources on a machine tool, there exists a complex temperature distribution across its structure. This causes an inherent thermal hysteresis which is undesirable as it affects the systematic tool –to-workpiece positioning ...
Fletcher, Simon, Longstaff, Andrew P., Mian, Naeem S., Potdar, Akshay   +3 more
core  

Statistical uncertainty in quantum optical photodetection measurements [PDF]

, 1998
We present a complete statistical analysis of quantum optical measurement schemes based on photodetection. Statistical distributions of quantum observables determined from a finite number of experimental runs are characterized with the help of the ...
Banaszek K., Eadie W. T., Jacobs K., Konrad Banaszek, Tan S. M., Vogel W.   +5 more
core   +3 more sources

Peptide Sequencing With Single Acid Resolution Using a Sub‐Nanometer Diameter Pore

Advanced Functional Materials, EarlyView.
To sequence a single molecule of Aβ1−42–sodium dodecyl sulfate (SDS), the aggregate is forced through a sub‐nanopore 0.4 nm in diameter spanning a 4.0 nm thick membrane. The figure is a visual molecular dynamics (VMD) snapshot depicting the translocation of Aβ1−42–SDS through the pore; only the peptide, the SDS, the Na+ (yellow/green) and Cl− (cyan ...
Apurba Paul, Archith Rayabharam, Lisa Almonte, Eveline Rigo, Joshy Joseph, Ashutosh Kumar, Zhuxin Dong, Narayana Aluru, Gregory Timp   +8 more
wiley   +1 more source

Principles for numerical compensation of elastic deformations in computerized numerical control machine tools

Academia Engineering
Nowadays, precision methods for computerized numerical control (CNC) machine tools analyze geometric, kinematic, dynamic, and thermal errors separately.
Alexander P. Kuznetsov, Hans-Joachim Koriath   +1 more
doaj   +1 more source

Quantum control of $^{88}$Sr$^+$ in a miniature linear Paul trap

, 2011
We report on the construction and characterization of an apparatus for quantum information experiments using $^{88}$Sr$^+$ ions. A miniature linear radio-frequency (rf) Paul trap was designed and built.
A. Keselman, A. Ludlow, A. Madej, B.B. Blinov, C. Monroe, D. Berkeland, D. Berkeland, D. Leibfried, D. Leibrandt, D. Stick, D.J. Wineland, F. Schmidt-Kaler, F. Schmidt-Kaler, I. Marzoli, J. Benhelm, J. Benhelm, J. Britton, J.H. Wesenberg, L. Deslauriers, M. Brownnutt, M. Rowe, N. Akerman, N. Akerman, N. Daniilidis, Q.A. Turchette, R. Ozeri, R.B. Blakestad, R.J. Epstein, S. Kotler, S. Kotler, S. Olmschenk, S. Seidelin, S. Wang, S.X. Wang, V. Letchumanan, W. Alt, Y. Glickman   +36 more
core   +1 more source