Results 51 to 60 of about 1,809,715 (303)

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

open access: yesJournal 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

Study on Denoise Algorithm for Micro-motion Target

open access: yesJournal 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   +4 more
openaire   +1 more source

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

open access: yesAdvanced 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   +7 more
wiley   +1 more source

Bistatic Echo Simulation Method of Micro-Motion Target with Specular Scattering Conditions

open access: yesComplex System Modeling and Simulation
The lack of data is constraining research on the bistatic ballistic target (BT). In the bistatic radar system, the angle between the target axis and the radar line of sight (RLOS) is generally large, which means that the specular scattering center (SSC ...
Yiqi Zhu   +5 more
doaj   +1 more source

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

open access: yesMicromachines, 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   +11 more
doaj   +1 more source

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

open access: yesRemote 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   +2 more
openaire   +2 more sources

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

open access: yesAdvanced 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

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat   +7 more
wiley   +1 more source

Analysis of Human Motion in Rehabilitation by Micro-Computer [PDF]

open access: yes, 1984
1984-03Analysis of human motion is extremely important in order to obtain fundamental data for training in the field of rehabilitation. At Nagoya University we are analysing human motion by use of a microcomputer to elucidate functional characteristics ...
ITO, FUJIO
core   +1 more source

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

open access: yesSensors, 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   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy