Photonics-assisted joint high-speed communication and high-resolution radar detection system

2021 ◽  
Author(s):  
yanyi wang ◽  
Ze Dong ◽  
Junjie Ding ◽  
li ping ◽  
mingxue wang ◽  
...  
Keyword(s):  
High Resolution ◽  
High Speed ◽  
Detection System ◽  
Radar Detection ◽  
High Resolution Radar

scholarly journals High Resolution Screening of Plant Natural Product Extracts for Estrogen Receptor a and f3 Binding Activity Using an Online HPLC-MS Biochemical Detection System

2001 ◽  
Vol 6 (5) ◽  
pp. 291-303 ◽  
Author(s):  
Uwe Schobel ◽  
Michel Frenay ◽  
Danny A. Van Elswijk ◽  
Joanne M. McAndrews ◽  
Kelly R. Long ◽  
...  
Keyword(s):  
Estrogen Receptor ◽  
High Resolution ◽  
Natural Product ◽  
High Speed ◽  
Detection System ◽  
Binding Activity ◽  
Biologically Active ◽  
Fluorescence Detector ◽  
Active Compounds ◽  
Activation Assay

A new screening technology that combines biochemical analysis with the resolution power of high-performance liquid chromatography (HPLC), referred to here as high-resolution screening (HRS) technique, is described. The capability of the HRS technology to analyze biologically active compounds in complex mixtures is demonstrated by screening a plant natural product extract library for estrogen receptor (ER) a and fi binding activity. The simultaneous structure elucidation of biologically active components in crude extracts was achieved by operating the HRS system in combination with mass spectrometry (MS). In contrast to conventional microtiter-type bioassays, the interactions of the extracts with the ER and the employed label, coumestrol, proceeded at high speed in a closed, continuous-flow reaction detection system, which was coupled directly to the outlet of a HPLC separation column. The reaction products of this homogeneous fluorescence enhancement-type assay were detected online using a flow-through fluorescence detector. Primary screening of the extract library was performed in the fast-flow injection analysis mode (FlowScreening) wherein the chromatographic separation system was bypassed. The library was screened at high speed, using two assay lines in parallel. A total of 98% of the identified hits were confirmed in a traditional 96-well microplate-based fluorescence polarization assay, indicating the reliability of the FlowScreening process. Active extracts were reassayed in a transcriptional activation assay in order to assess the functional activity of the bioactive extracts. Only functional active extracts were processed in the more time-consuming HRS mode, which was operated in combination with MS. Information on the number of active compounds, their retention times, the molecular masses, and the MS/MS-fingerprints as a function of their biological activity was obtained from 50% of the functional active extracts in real time. This dramatically enhances the speed of biologically active compound characterization in natural product extracts compared to traditional fractionation approaches.

High-Resolution Radar Detection in Interference and Nonhomogeneous Noise

2016 ◽  
Vol 23 (10) ◽  
pp. 1359-1363 ◽  
Author(s):  
Yongchan Gao ◽  
Guisheng Liao ◽  
Weijian Liu
Keyword(s):  
High Resolution ◽  
Radar Detection ◽  
High Resolution Radar

REDUCTION OF ASPECT DEPENDENT SPECKLE FLUCTUATIONS IN HIGH-RESOLUTION RADAR RANGE PROFILES

2010 ◽  
Vol 69 (8) ◽  
pp. 687-698 ◽  
Author(s):  
V. M. Orlenko ◽  
P. A. Molchanov ◽  
A. V. Totsky ◽  
Karen O. Egiazarian ◽  
J. T. Astola
Keyword(s):  
High Resolution ◽  
High Resolution Radar

Electrical Probing and Surface Imaging of Deep Sub-Micron Integrated Circuits

1999 ◽  
Author(s):  
Kenneth Krieg ◽  
Richard Qi ◽  
Douglas Thomson ◽  
Greg Bridges
Keyword(s):  
High Resolution ◽  
Integrated Circuits ◽  
Real Time ◽  
High Speed ◽  
Time Signal ◽  
Surface Imaging ◽  
Atomic Force ◽  
Submicron Structures ◽  
High Resolution Images ◽  
Capacitive Loading

Abstract A contact probing system for surface imaging and real-time signal measurement of deep sub-micron integrated circuits is discussed. The probe fits on a standard probe-station and utilizes a conductive atomic force microscope tip to rapidly measure the surface topography and acquire real-time highfrequency signals from features as small as 0.18 micron. The micromachined probe structure minimizes parasitic coupling and the probe achieves a bandwidth greater than 3 GHz, with a capacitive loading of less than 120 fF. High-resolution images of submicron structures and waveforms acquired from high-speed devices are presented.

scholarly journals Rapid Foreign Object Detection System on Seaweed Using VNIR Hyperspectral Imaging

Sensors ◽  
2021 ◽  
Vol 21 (16) ◽  
pp. 5279
Author(s):  
Dong-Hoon Kwak ◽  
Guk-Jin Son ◽  
Mi-Kyung Park ◽  
Young-Duk Kim
Keyword(s):  
Object Detection ◽  
Real Time ◽  
Hyperspectral Imaging ◽  
High Speed ◽  
Detection System ◽  
Imaging Techniques ◽  
Foreign Object ◽  
Subtraction Method ◽  
Foreign Objects ◽  
Time Operation

The consumption of seaweed is increasing year by year worldwide. Therefore, the foreign object inspection of seaweed is becoming increasingly important. Seaweed is mixed with various materials such as laver and sargassum fusiforme. So it has various colors even in the same seaweed. In addition, the surface is uneven and greasy, causing diffuse reflections frequently. For these reasons, it is difficult to detect foreign objects in seaweed, so the accuracy of conventional foreign object detectors used in real manufacturing sites is less than 80%. Supporting real-time inspection should also be considered when inspecting foreign objects. Since seaweed requires mass production, rapid inspection is essential. However, hyperspectral imaging techniques are generally not suitable for high-speed inspection. In this study, we overcome this limitation by using dimensionality reduction and using simplified operations. For accuracy improvement, the proposed algorithm is carried out in 2 stages. Firstly, the subtraction method is used to clearly distinguish seaweed and conveyor belts, and also detect some relatively easy to detect foreign objects. Secondly, a standardization inspection is performed based on the result of the subtraction method. During this process, the proposed scheme adopts simplified and burdenless calculations such as subtraction, division, and one-by-one matching, which achieves both accuracy and low latency performance. In the experiment to evaluate the performance, 60 normal seaweeds and 60 seaweeds containing foreign objects were used, and the accuracy of the proposed algorithm is 95%. Finally, by implementing the proposed algorithm as a foreign object detection platform, it was confirmed that real-time operation in rapid inspection was possible, and the possibility of deployment in real manufacturing sites was confirmed.

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