Results 11 to 20 of about 29,413 (220)

Experimental study on the lubrication characteristics of porous circular journal bearing under shaft unsteady condition (Examination into the whirling behavior of shaft at pivot supported condition by measuring the time history waveform of shaft with parameter of diametral clearance changes)

Nihon Kikai Gakkai ronbunshu, 2015
This report is described the study on the lubrication characteristics of porous circular journal bearing made with oil impregnate sintered materials as a DC spindle motor's bearing system.
Shigeru OHTSUKA, Masaki YAKABE, Takeshi GONDA, Hiroyuki YAMADA   +3 more
doaj   +5 more sources

Experimental study on the lubrication characteristics of porous journal bearings with hydrodynamic shape forming at annular surface under sine-wave vibrated conditions (Examination into the shaft whirling behavior at pivot supported condition by measuring the time history waveform on shaft with parameter of vibrated Frequency changes)

Nihon Kikai Gakkai ronbunshu, 2018
This report describes the study on the lubrication characteristics of porous journal bearings as a DC spindle motor's bearing system made with oil impregnated sintered materials having some hydrodynamic shapes. Herring Bone (I & II), Three Lobed
Shigeru OHTSUKA, Masaki YAKABE, Yasutaka HAYAMIZU, Koichi OTSUKA   +3 more
doaj   +5 more sources

Experimental study on the lubrication characteristics of porous journal bearings with hydrodynamic shape forming at annular surface under sine-wave vibrated conditions (Examination into the shaft rotating behavior at the starting state by identifying the rotational modes with Frequency Spectrum Analysis of the time history waveform on shaft)

Nihon Kikai Gakkai ronbunshu, 2019
This report describes the study on the lubrication characteristics of porous journal bearings, which were made with oil impregnated sintered materials having some hydrodynamic shapes, to apply them for a DC Spindle Motor’s bearing system. Herring Bone (I
Shigeru OHTSUKA, Masaki YAKABE, Yasutaka HAYAMIZU, Koichi OTSUKA   +3 more
doaj   +5 more sources

An Impact Load History Reconstruction Method for Composite Structures Based on FBG Sensing Data and the GCV Principle [PDF]

Sensors
Accurately and promptly acquiring the load history characteristics of impact events on composite aircraft structures is crucial for identifying impact-induced damage and developing high-fidelity digital twin models.
Jie Zeng, Jihong Xu, Yuntao Xu, Xin Zhao, Shiao Wang, Yanwei Zhou, Yuxun Wang   +6 more
doaj   +2 more sources

Diagnostic tools to establish the presence and severity of peripheral arterial disease in people with diabetes: a synopsis of the DM PAD prospective multicentre diagnostic accuracy study

Health Technology Assessment
Background Peripheral arterial disease is a major cause of the development of diabetic foot ulcers, lower limb amputation and mortality in patients with diabetes.
Laura Burgess, Pasha Normahani, John Norrie, Sharon Tuck, Catriona Graham, David Mark Epstein, Neghal Kandiyil, Athanasios Saratzis, Francine Heatley, Sasha Smith, Kamlesh Khunti, David Wingfield, Trusha Coward, Tim Hartshorne, Simon Ashwell, Joseph Shalhoub, Elizabeth Pigott, Alun H Davies, Usman Jaffer   +18 more
doaj   +2 more sources

THE APPLICATION OF TRIANGULAR WAVEFORM SHOCK TIME HISTORY OF BV0430-85 FOR EVALUATING IMPACT RESISTANCE CAPACITY OF EQUIPMENTS IN NUCLEAR POWER PLANT

The Proceedings of the International Conference on Nuclear Engineering (ICONE), 2019
Zhimao, Feng, Di, Jiang, Mengyan, Song, Chen, Dong, Chencheng, Shi   +4 more
openaire   +3 more sources

REFERENCE VALUE PROVISION SCHEMES FOR ATTENUATION CORRECTION OF FULL-WAVEFORM AIRBORNE LASER SCANNER DATA [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
The characterization of the vertical forest structure is highly relevant for ecological research and for better understanding forest ecosystems. Full-waveform airborne laser scanner systems providing a complete time-resolved digitization of every laser ...
K. Richter, R. Blaskow, N. Stelling, H.-G. Maas   +3 more
doaj   +1 more source

Analysis on strong ground motion records of Guangdong Xuwen ML4.2 earthquake on November 22, 2015

地震科学进展, 2022
ML4.2 earthquake occurred in Xuwen County, Guangdong Province at 07:43 on November 22, 2015. The Hainan Strong Motion Network Center collected three sets of three-direction acceleration records, which was the first time to record strong motion seismic ...
Weishun Zeng, Yang Yang, Jiang Chen, Yi Tian   +3 more
doaj   +1 more source

Characterization of laser speckle flowgraphy pulse waveform parameters for the evaluation of the optic nerve head and retinal circulation

Scientific Reports, 2021
To characterize laser speckle flowgraphy (LSFG) pulse waveform parameters for ocular circulation evaluation, a multicenter, prospective, cross-sectional study was conducted in 111 eyes of 86 healthy Japanese individuals.
Nobuko Enomoto, Ayako Anraku, Goji Tomita, Aiko Iwase, Takashi Sato, Nobuyuki Shoji, Tomoaki Shiba, Toru Nakazawa, Kazuhisa Sugiyama, Koji Nitta, Makoto Araie   +10 more
doaj   +1 more source

Actuating Voltage Waveform Optimization of Piezoelectric Inkjet Printhead for Suppression of Residual Vibrations

Micromachines, 2020
After a piezoelectric inkjet printhead jets the first droplet, the actuating membrane still vibrates, creating residual vibrations in the ink channel, which can degrade the inkjet printhead performance.
Muhammad Ali Shah, Duck-Gyu Lee, Bo Yeon Lee, Nam Woon Kim, Hyojin An, Shin Hur   +5 more
doaj   +1 more source