Results 51 to 60 of about 11,763 (288)

Modeling and Control of Twin Parallel-Axis Linear Servo Mechanisms for High-Speed Machine Tools

International Journal of Automation and Smart Technology, 2011
This paper presents a synchronous control scheme for a twin parallel-axis linear servo mechanism with mechanical coupling which appears inherently in the so-called box-in-box configuration of machine tools.
Wu-Sung Yao, Fu-Yun Yang, Mi-Ching Tsai
doaj   +1 more source

Design of High-Dynamic PMSM Servo Drive Using Nonlinear Predictive Controller with Harmonic Disturbance Observer

Energies, 2022
The high-dynamic permanent magnet (PM) motor servo system with high-bandwidth is the core equipment for industrial production, and the control bandwidth is also an important indexes to evaluate the performance of the servo system. The non-cascaded direct
Zhanqing Zhou, Shuaijiang Yao, Chaolei Ma, Guozheng Zhang, Qiang Geng   +4 more
doaj   +1 more source

On the Stick Slip of hydraulic servo mechanism [PDF]

, 1969
When work is cut by using a lethe or the table with much friction is moved, the table is unable to move smoothly at the constant speed. This phenomena is called "Stick Slip" as wellknown.
中川 孝之, 大住 剛
core   +1 more source

Status of ITER neutral beam cell remote handling system

, 2013
The ITER neutral beam cell will contain up to three heating neutral beams and one diagnostic neutral beam, and four upper ports. Though manual maintenance work is envisaged within the cell, when containment is breached, or the radiological protection is ...
Belcher, C, Choi, C-H, Crofts, O, Crowe, R, Damiani, C, Delavalle, S, Meredith, L, Mindham, T, Raimbach, J, Sykes, N, Tesini, A, Van Uffelen, M   +11 more
core   +1 more source

Benefits of Artificially Generated Gravity Gradients for Interferometric Gravitational-Wave Detectors [PDF]

, 2007
We present an approach to experimentally evaluate gravity gradient noise, a potentially limiting noise source in advanced interferometric gravitational wave (GW) detectors.
, , , Acernese F, Adhikari R, Beccaria M, Bruursema J, Goetz E, Gonzalez G, Hazel J Kawamura S Raab F, J Rollins, Kalmus P, L Matone, Landry M, LIGO collaboration, Lück H, Matone L, Matone L, Minoshima K Matsunoto H, Morganson E, P Kalmus, P Raffai, R Grossman, Raffai P, S Márka, Sigg D, Sigg D, Spero R, Takahashi R, V Sannibale, Z Márka   +30 more
core   +2 more sources

A New 3D Colon on a Chip to Decipher the Influence of Mechanical Forces on the Physiological Cellular Ecosystem

Advanced Healthcare Materials, EarlyView.
To dissect how mechanical forces influence intestinal physiology, we developed a stretchable 3D colon‐on‐chip that integrates tunable topography, stiffness and peristalsis‐like motion within a physiologically relevant microenvironment. We showed that stretching is a dominant factor governing epithelial behavior, markedly enhancing proliferation and ...
Moencopi Bernheim‐Dennery, Lauriane Gérémie, Julie Brun, Lucas Chassatte, Giacomo Gropplero, Réda Bouras, Jieun Choo, Bertrand Cinquin, Alba Marcellan, Danijela Matic Vignjevic, Stéphanie Descroix   +10 more
wiley   +1 more source

Model Tests of the Influence of Excavation Unloading and Servo Loading on Subway Foundation Pits

Buildings
In deep foundation pit engineering, the rational arrangement of internal struts plays a crucial role in controlling diaphragm wall displacement and minimizing environmental impacts.
Gang Wei, Weihao Feng, Xuehua Wu, Pengfei Wu, Kuan Chang, Hang Li, Shuaihua Ye, Zhe Wang   +7 more
doaj   +1 more source

Television noise-reduction device [PDF]

, 1973
System greatly improves signal-to-noise ratio with little or no loss in picture resolution. By storage of luminance component, which is summed with chrominance component, system performs mathematical integration of basically-repetitive television signals.
Gordon, B. L., Stamps, J. C.
core   +1 more source

Using a Zero‐Strain Reference Electrode to Distinguish Anode and Cathode Volume Changes in a Solid‐State Battery

Advanced Materials Interfaces, EarlyView.
Volume changes of a solid‐state battery cell are separated into the individual contributions of anode and cathode. Simultaneously determining the “reaction volumes” of both electrodes requires a reference electrode with a pressure‐independent potential.
Mervyn Soans, Benedikt Huber, Marcel Drüschler, Dominic Bresser, Alberto Varzi, Christoffer Karlsson   +5 more
wiley   +1 more source

Tandem control method of two axes with different reduction ratios (Comparison of three methods for the natural vibration suppression)

Nihon Kikai Gakkai ronbunshu, 2020
Tandem control is the control to drive one load with multiple motors. Its basic method is a common torque method. The common torque method is that the position signal and the rate signal from the motor 1 feedbacks to obtain the torque reference value of ...
Akihiro MAEKAWA, Toshihiro YASUE, Hikaru IIDA, Takumi YAMADA   +3 more
doaj   +1 more source