Results 31 to 40 of about 1,529,727 (337)

A Novel Feedforward Hybrid Active Noise Control System with Narrowband Frequency Adaptive Estimation and Error Separation

Transactions of Nanjing University of Aeronautics and Astronautics
The conventional feedforward hybrid active noise control （FFHANC） system combines the advantages of the feedforward narrowband active noise control （FFNANC） system and the feedforward broadband active noise control （FFBANC） system.
PANG Mingrui, LIU Yifei, LIU Jian
doaj   +1 more source

Precise comparison of theory and new experiment for the Casimir force leads to stronger constraints on thermal quantum effects and long-range interactions

, 2005
We report an improved dynamic determination of the Casimir pressure between two plane plates obtained using a micromachined torsional oscillator. The main improvements in the current experiment are a significant suppression of the surface roughness of ...
Decca, R. S., Fischbach, E., Klimchitskaya, G. L., Krause, D. E., Lopez, D., Mostepanenko, V. M.   +5 more
core   +1 more source

A study of pattern recovery in recurrent correlation associative memories [PDF]

, 2003
In this paper, we analyze the recurrent correlation associative memory (RCAM) model of Chiueh and Goodman. This is an associative memory in which stored binary memory patterns are recalled via an iterative update rule.
Hancock, E.R., Wilson, R.C.
core   +2 more sources

Separating variability in healthcare practice patterns from random error [PDF]

Statistical Methods in Medical Research, 2018
Improving the quality of care that patients receive is a major focus of clinical research, particularly in the setting of cardiovascular hospitalization. Quality improvement studies seek to estimate and visualize the degree of variability in dichotomous treatment patterns and outcomes across different providers, whereby naive techniques either over ...
Laine E Thomas, Phillip J Schulte
openaire   +2 more sources

Full Cross-Sectional Profile Measurement of a High-Aspect-Ratio Micro-Groove Using a Deflection Probe Measuring System

Sensors
For the full cross-sectional profile measurement of high-aspect-ratio micro-grooves, traditional measurement methods have blind measurement areas in the vertical sidewall and its intersection area with the bottom.
Zhong-Hao Cao, Jinyan Tang, Zhongwei Li, Yuan-Liu Chen   +3 more
doaj   +1 more source

MYCN Amplification in RB1‐Inactivated Retinoblastoma: Association With High‐Risk Features

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background MYCN amplification occurs in a subset of retinoblastoma cases, both with and without RB1 inactivation. It has been suggested that retinoblastomas with MYCN amplification represent a distinct entity with more aggressive clinical behavior.
Kyriaki Papaioannou, Regina Kubica, Karen Fischhuber, Jasmin Beygo, Madlen Reschke, Petra Ritter‐Sovinz, Eva Biewald, Petra Ketteler, Dietmar Lohmann, Deniz Kanber   +9 more
wiley   +1 more source

Multi-Probe Measurement Method for Error Motion of Precision Rotary Stage Based on Reference Plate

Applied Sciences
The error motion of the precision rotary stage, particularly the tilt error motion, significantly influences the accuracy of machining and measuring equipment.
Xiaofeng Zheng, Tianhao Zheng, Daowei Zhang, Zhixue Ni, Lei Zhang, Deqiang Mu   +5 more
doaj   +1 more source

Design of structure health monitoring system for coal mine roadway roof separatio

Gong-kuang zidonghua, 2013
In view of problems of inconvenient observations, bigger error and poor data real-time performance existed in monitoring for coal mine roadway roof separation with mechanical device, the paper designed a structure health monitoring system for coal mine ...
ZHAO Bai-ting, ZHU Long-ji, WEI Lan-lan
doaj   +1 more source

Separation and Calibration Method of Structural Parameters of 6R Tandem Robotic Arm Based on Binocular Vision

Mathematics, 2023
In this paper, a kinematic separation calibration method of 6R series manipulator is proposed, and its absolute accuracy is improved by a binocular camera and standard sphere.
Rui Wang, Xiangyu Guo, Songmo Li, Lin Wang   +3 more
doaj   +1 more source

On the use of the ratio of small to large separations in asteroseismic model fitting

, 2013
Context. The use of ratios of small to large separations as a diagnostic of stellar interiors. Aims. To demonstrate that model fitting by comparing observed and model separation ratios at the same n values is in error, and to present a correct procedure.
Roxburgh, Ian W, Vorontsov, Sergei V
core   +1 more source