Video anomaly detection is commonly used in many applications, such as security surveillance, and very challenging. A majority of recent video approaches utilize deep reconstruction models, but their performance often suboptimal because insufficient error differences between normal abnormal frames practice. Meanwhile, frame prediction-based methods have shown promising performance. In this article, we propose a novel robust unsupervised method by prediction with proper design which more line...

Carbon nanotube (CNT) modification of microelectrodes can result in increased sensitivity without compromising time response. However, dip coating CNTs is not very reproducible and the tend to lay flat on electrode surface which limits access electroactive sites ends. In this study, aligned CNT forests were formed using a chemical self-assembly method, resulted more exposed ends analyte. Shortened, carboxylic acid functionalized single-walled assembled from dimethylformamide (DMF) suspension...

Recently several ground-breaking RF-based motion-recognition systems were proposed to detect and/or recognize macro/micro human movements. These often suffer from various interferences caused by multiple-users moving simultaneously, resulting in extremely low recognition accuracy. To tackle this challenge, we propose a novel system, called Motion-Fi, which marries battery-free wireless backscattering and device-free sensing. Motion-Fi is an accurate, interference tolerable counts repetitive...

In this work, ethylene-propylene-ethylene (EPE) oxide triblock copolymers were found to be effective suppressors for microvia filling during copper electroplating. The studied EPE divided into two groups according their solubility and compositions. first group was composed of 1000, 2000, 3500, the second contained 2450, 2900, 8000. particular, function copolymer (e.g. 2900) synergistic effect with other additives electroplating by galvanostatic measurements, suggesting that suppression...

A new technology named extreme high-speed laser melting deposition is presented in this paper. The speed of as high 30m/min, which can promote the efficiency from 0.09m2/h to 0.54m2/h. In addition, surface EHLMD layer smoother save part machining process after and promotes production by 6 times. AISI 431 martensitic stainless steel layers were fabricated on 27SiMn substrate conventional deposition. macroscopic morphology, microstructure, microhardness electrochemical corrosion resistance two...

The first electrochemical characterization of the much-studied "fullerenols" has been carried out. fullerenol was prepared by reaction C(60) in deoxygenated tetrahydrofuran with an aqueous NaOH solution using sodium zincate as electrophilic reagent. obtained is not simply polyhydroxylated but a structurally and electronically complex anion molecular formula Na(+) (2)[C(60) (OH)(12)(O)(2)](2-). This negatively charged form spherical cluster 50 nm diameter, it can migrate same to anode surface...

The effects of Cl(-) on the corroded surface layer 00Cr22Ni5Mo3N duplex stainless steel under cavitation in chloride solutions were investigated using nanoindentation conjunction with XRD and XPS. results demonstrate that had a strong effect nano-mechanical properties cavitation, there was threshold concentration. Furthermore, close relationship between corrosion resistance observed. degradation accelerated by synergistic erosion corrosion. A key factor adsorption Cl(-), which caused...

Real-time handwriting tracking is important for many emerging applications such as Artificial Intelligence assisted education and healthcare. Existing movement systems, including those based on vision, ultrasound or wireless technologies, fail to offer high accuracy, no learning/training/calibration process, low latency, cost easy deploy at the same time. In this work, we design evaluate a backscattering system, called MilliBack, that satisfies all these requirements. At heart of MilliBack...

Protein splicing is a unique post-translational process in which an intein excises itself from precursor with the concomitant ligation of flanking sequences. The binding zinc to inhibits protein reversibly and EDTA relieves inhibition. Copper was found inhibit trans splicing; however, recovery required both TCEP, suggesting different inhibition mechanism for copper compared zinc. In this work, we have investigated properties effects ions on RecA Mycobacterium tuberculosis. Both Cu(+) Cu(2+)...

Human activity recognition (HAR) has become increasingly essential due to its potential support a broad array of applications, e.g., elder care, and VR games. Recently, some pioneer WiFi-based HAR systems have been proposed privacy-friendly device-free characteristics. However, their crucial limitation lies in ignoring the inevitable impact co-channel interference (CCI), which degrades performance these significantly. To address this challenge, we propose PhaseAnti, novel system exploit CCI-...

Colorization for medical images helps make visualizations more engaging, provides better visualization in 3D reconstruction, acts as an image enhancement technique tasks such segmentation, and makes it easier non-specialists to perceive tissue changes texture details diagnosis teaching. However, colorization algorithms have been hindered by limited semantic understanding. In addition, current methods still rely on paired data, which is often not available specific fields imaging. To address...

In this work, the interface film in Cu/H3PO4 was in-situ studied by tracking time and potential evolution of system impedance (Rs) at high-frequency. The fluctuation Rs upon applied potentials confirmed Rs-potential plot. A copper oxide found formed on surface during electropolishing process analyzing Mott-Schottky curve. Moreover, oxides exhibited a transition n-type semiconductor to p-type one.

In this work, 3-mercapto-1-propanesulfonate (MPS) with one sulfhydryl (–HS) group and 2,3-dimercapto-1-propanesulfonate (DMPS) two –HS groups were used as model additives to reveal the function of during copper plating. Chronopotentiometry was employed characterize different electrochemical behaviors additives. It indicated that DMPS showed stronger accelerating effect than MPS in plating bath containing Cl−, which could be attributed its enhanced adsorption caused by groups. The...

Interactions between a triblock copolymer, commercially named Pluronic L64, and chloride ions (Cl−) was found efficient for Cu electrodeposition in microvia filling process. Cyclic voltammetry (CV) curves clearly showed the synergistic effect L64 Cl− to inhibit copper electrodeposition. CV stripping measurements further suggested that possible dependent on concentrations of Cl−. With fixed concentration (≥ 7.5 ppm), there proper achieve maximum effect. Haring cell experiments confirmed...

Word-Fi is a handwriting input system, driven by wireless backscattering technology and machine learning methods. It could effectively mitigate the surrounding noise extract weak signals incurred tiny writing gestures accurately. Leveraging our customized be tolerant across relatively complex environments, especially when multiple persons are presented around, which significantly differs from status quo sensing systems that suffer multi-user presentation. For signal extraction, Word- Fi...