The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A fiber-optic capillary (FOCap) gas chromatography detector was employed to measure eluting volatile organic compounds (VOCs) through the localized surface plasmon resonance (LSPR) of thiolate monolayer-protected nanoparticles. The 1-octanethiol silver nanoparticles (C8-AgNP) were synthesized through reduction with sodium borohydride. The inner wall surface of the FOCap detector is modified with (3-mercaptopropyl)...
Nowadays, more and more methods have been proposed to solve the problem of face detection based on computer implementation. Due to the variations in background, illumination, pose and facial expressions, the problem of machine face detection is complex. Recently, deep learning approaches achieve an impressive performance on face detection. In this paper, a model named Multi-Scale Fusion Convolutional...
Due to the limitations in the geometric accuracy of reference data and matching accuracy between images from different sensors, the conventional method of calibration may not perform well in terms of accuracy for an agile optical satellite (AOS) with submeter resolution. Due to the high mobility of an AOS, a cross-image pair (CIP) including a push-broom image and a swing scanning image for the same...
A monolithic chemiresistor (CR) array micro-system with microfluidic channel for micro gas chromatograph (μGC) is presented in this paper. A CMOS readout chip was designed for amplifying and conditioning the signal of a 4×2 MPN-coated CR array fabricated on the surface of the CMOS chip. A micro glass lid with input and output capillary tubes was developed as a gas flow channel and mounted on the CMOS...
A pulsed laser method is used to map the charge collection amplitude and electron mobility-lifetime product (??e??e) in Cd1-xZnxTe (x = 0.1) pieces especially selected to include regions with crystallographic defects. Additionally, ultrasound imaging is used in conjunction with X-ray diffraction in order to localize and analyze the defects. The defect regions studied include twins, misoriented secondary...
A defense system against UDP flooding attack with artificial immune detection was put forward, and four sections detection with weight was proposed based on considering the uncontinuity of IP address. Eigenvalue matching was introduced based on analyzing the r-continuous bits matching rule. Using the new matching rule the negative selection algorithm was improved both in detector generation and "black...
Eigenvalue matching was introduced based on analyzing the continuous bits matching rule. Using the new matching rule the negative selection algorithm was improved both in detector generation and "black hole" detection. A defense system against SYN Flooding attack with immune detection was put forward, and four sections detection with weight was proposed based on considering the uncontinuity...
The energy resolution limiting factors of a prototype 3D position-sensitive CZT gamma-ray spectrometer are investigated with both single and multi-pixel events from 662 keV gamma rays. The spectrometer was developed using a 10x10x10 mm3 CZT detector with 8×8 pixellated anode and a RENA-3 readout system from NOVA R&D. The RENA-3 system has energy and timing readout channels for the cathode and...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.