Results 51 to 60 of about 128,608 (313)

Eight-pass neodymium-doped yttrium aluminum garnet laser amplifier at the 5 J level

open access: yesHigh Power Laser Science and Engineering
This paper presents an innovative eight-pass laser amplifier design that effectively utilizes polarization and angular multiplexing, enjoying high gain, high extraction efficiency and compact layout.
Xinxing Lei   +7 more
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

A fast Maximum Likelihood method for improving AMCW lidar precision using waveform shape

open access: yes, 2009
Amplitude Modulated Continuous Wave imaging lidar systems use the time-of-flight principle to determine the range to objects in a scene. Typical systems use modulated illumination of a scene and a modulated sensor or image intensifier.
A. A. Dorrington   +7 more
core   +1 more source

High precision dynamic multi-interface profilometry with optical coherence tomography [PDF]

open access: yes, 2011
Optical coherence tomography (OCT) has mostly been used for high speed volume imaging but its profilometry potentials have not been fully exploited. This paper demonstrates high precision (as good as ~50nm) multi-interface profilometry using a Fourier ...
Lawman, S   +3 more
core   +1 more source

Fiber Optic Magnetic Field Sensor Based on Magnetic Nanoparticle Assembly in Microcapillary Ring Resonator

open access: yesIEEE Photonics Journal, 2017
A magnetic field sensor based on the magnetic-field-induced nanoparticle assembly effect in microcapillary whispering gallery mode (WGM) ring resonator is proposed and experimentally demonstrated.
Zhe Yu   +6 more
doaj   +1 more source

Combining Spectral and Texture Features of UAV Images for the Remote Estimation of Rice LAI throughout the Entire Growing Season

open access: yesRemote Sensing, 2021
Leaf area index (LAI) estimation is very important, and not only for canopy structure analysis and yield prediction. The unmanned aerial vehicle (UAV) serves as a promising solution for LAI estimation due to its great applicability and flexibility.
Kaili Yang   +7 more
doaj   +1 more source

Precision Optical Metrology and Smart Sensing

open access: yesSensors
Optics, renowned for its non-contact measurement capabilities, versatility, and high sensitivity, is recognized as a powerful tool driving the technological evolution of precision metrology [...]
Xiangchao Zhang, Jian Wang, Yajun Wang
openaire   +3 more sources

An isoform of 14‐3‐3 protein regulates transbilayer lipid movement at the plasma membrane

open access: yesFEBS Letters, EarlyView.
Loss of 14‐3‐3ζ in CHO cells confers resistance to exogenous phosphatidylserine (PS) and impairs endocytosis‐independent inward flip‐flop of fluorescent PS at the plasma membrane. RNAi‐mediated knockdown reproduces this defect, while no additive effect is seen in ATP11C‐deficient cells.
Akiko Yamaji‐Hasegawa   +3 more
wiley   +1 more source

Crop Yield Prediction in Precision Agriculture

open access: yes, 2022
Predicting crop yields is one of the most challenging tasks in agriculture. It plays an essential role in decision making at global, regional, and field levels. Soil, meteorological, environmental, and crop parameters are used to predict crop yield.
Anikó Nyéki, Miklós Neményi
core   +1 more source

Cellulose-Based Sustainable Photo-Triboelectric Hybrid Nanogenerator for High-Performance Energy Harvesting and Smart Control Systems

open access: yesNanoenergy Advances
With the advancement of Internet of Things (IoT) technology, flexible sensors with dual optoelectronic sensing modes have emerged as a research hotspot for next-generation smart devices, further driving the urgent demand for environmentally friendly ...
Zhen Tian   +7 more
doaj   +1 more source

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