Results 71 to 80 of about 101,062 (334)

Study on Denoise Algorithm for Micro-motion Target

Journal of Physics: Conference Series, 2020
Abstract Aiming at the non-stationary characteristics of narrowband radar echo of micro-motion target, a novel micro-motion signal denoising algorithm is proposed. Firstly, the weight function is constructed by coherent accumulation, and the echo is weighted by weight function to filter out the noise in range dimension.
Saiqiang Xia, Wenfei Chen, Chaowei Zhang, Xiaonan Wang, Dahan Xu   +4 more
openaire   +1 more source

Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology

Advanced Engineering Materials, EarlyView.
We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham, Chenyu Wen, Mohammad Hadi Khaksaran, Won‐Yong Lee, Javier Cruz, Klas Hjort, Dongping Wu, Shi‐Li Zhang   +7 more
wiley   +1 more source

Positioning Performance of a Sub-Arc-Second Micro-Drive Rotary System

Micromachines, 2021
In the macro/micro dual-drive rotary system, the micro-drive system compensates for the position error of the macro-drive system. To realize the sub-arc-second (i.e., level of 1″–0.1″) positioning of the macro/micro dual-drive rotary system, it is ...
Manzhi Yang, Zhenyang Lv, Chuanwei Zhang, Yizhi Yang, Gang Jing, Wei Guo, Zhengxiong Lu, Yumei Huang, Kaiyang Wei, Linyue Li, Bin Feng, Hongyu Ge   +11 more
doaj   +1 more source

Unusual bound or localized states [PDF]

, 2001
We summarize unusual bound or localized states in quantum mechanics. Our guide through these intriguing phenomena is the classical physics of the upside-down pendulum.
Cirone, M. A., Metikas, G., Schleich, W. P.   +2 more
core   +2 more sources

BACTERIAL GROWTH AND MULTIPLICATION AS DISCLOSED BY MICRO MOTION PICTURES [PDF]

Journal of Experimental Medicine, 1934
Using a micro motion picture technique for making records, studies covering several thousand hours of observation have been made of the growth of a number of bacteria. On the basis of these experiments a discussion is offered of bacterial division and its influence on gross colony appearance, of different kinds of pleomorphism that have been observed ...
openaire   +2 more sources

Recognition of Ballistic Targets by Fusing Micro-Motion Features with Networks

Remote Sensing, 2022
Ballistic target recognition is of great significance for space attack and defense. The micro-motion features, which contain spatial and motion information, can be regarded as the foundation of the recognition of ballistic targets. To take full advantage of the micro-motion information of ballistic targets, this paper proposes a method based on feature
Lei Yang, Wenpeng Zhang 0002, Weidong Jiang   +2 more
openaire   +2 more sources

Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition

Advanced Engineering Materials, EarlyView.
A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley   +1 more source

An Image Focusing Method for Sparsity-Driven Radar Imaging of Rotating Targets

Sensors, 2018
This paper presents a new image focusing algorithm for sparsity-driven radar imaging of rotating targets. In the general formulation of off-grid scatterers, the sparse reconstruction algorithms may result in blurred and low-contrast images due to ...
Ngoc Hung Nguyen, Kutluyıl Doğançay, Hai-Tan Tran, Paul Berry   +3 more
doaj   +1 more source

Experimental comparison of five friction models on the same test-bed of the micro stick-slip motion system [PDF]

Mechanical Sciences, 2015
The micro stick-slip motion systems, such as piezoelectric stick-slip actuators (PE-SSAs), can provide high resolution motions yet with a long motion range. In these systems, friction force plays an active role.
Y. F. Liu, J. Li, Z. M. Zhang, X. H. Hu, W. J. Zhang   +4 more
doaj   +1 more source

Design and Performance Research of a Precision Micro-Drive Reduction System without Additional Motion

Micromachines, 2022
A micro-drive system is a key part of macro-micro-drive technology and precision positioning technology in which a micro-drive reduction system can provide more precise motion and suitable small space motion. Therefore, it is necessary to study precision
Manzhi Yang, Xiaodong Zhang, Chuanwei Zhang, Hongzhang Wu, Yizhi Yang   +4 more
doaj   +1 more source