In this paper, we propose a novel adaptive metric learning algorithm (AML) for visual saliency detection. A key observation is that the of superpixel can be estimated by distance from most certain foreground and background seeds. Instead measuring on Euclidean space, present method based two complementary Mahalanobis metrics: 1) generic (GML) 2) specific (SML). GML aims at global distribution whole training set, while SML considers structure single image. Considering multiple similarity...

The inactivation mechanism of microorganisms by plasma has been attracting much attention researchers in recent years. Some different explanations have postulated from physical, chemical, and biological views. In this paper, we investigate the cells exposed to dielectric barrier discharge helium at atmospheric pressure a biochemical view, i.e., disintegration biomacromolecules, particularly polysaccharide on cell wall membrane-bound proteins. experimental results showed that series complex...

The polymerization mechanisms of ethylene catalyzed by two cationic nickel catalysts, viz., diimine-type Ni complex A [(ArN═C(Me)-C(Me)═NAr)NiMe]+ (Ar = 2,6-diisopropylphenyl) and α-imino-ketone B [(ArN═C(Me)-C(Me)═O)NiMe]+ 2,6-diisopropylphenyl), have been comparatively studied through density functional theory (DFT) calculations. It has found that the calculated activity trend toward is consistent with experimental results. In comparison species A, higher originated from stronger...

Most studies concerned with the interactions between plasma discharges and bacteria have mainly focused on germicidal effects inactivation mechanisms, little attention given to survivor bioeffects, such as changes in metabolism. This paper investigated production of 1,3-propanediol (1,3-PD) from glycerol by <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">Klebsiella</i> xmlns:xlink="http://www.w3.org/1999/xlink">pneumoniae</i> after exposure...

In order to facilely increase the color yield of ink-jet prints using reactive inks, one-bath pretreatment cotton fabrics with formulation containing sodium alginate, glycidyltrimethylammonium chloride (GTA), hydroxide, and urea is designed for realizing sizing cationization at same time. The conditions, including concentrations GTA alkali, baking temperature, time are optimized based on result thecolor cationic magenta ink. mechanism enhancement GTA-modified discussed stability in print...

In this paper, we study the synchronization problem of identical oscillators interacting via matrix-weighted couplings under both undirected and directed graph topologies. contrast to existing mechanism which makes use instantaneous derivative information relative state, sampled-data technique is utilized tackle case when state unavailable. Necessary sufficient conditions depending on coupling gains, sampling period, spectra Laplacian, are established for achieving The constraints matrix...

FeCoSe 2 has fast oxygen evolution due to polarization electric field and d-band center. However, the large adsorption energy of Fe slows reaction. Magnetic reduces Fe's adsorption, enhancing OER performance.

Interfacial intermetallic compound (IMC) is a necessary condition for the reliability of solder connection. In this study, fiber lasers were used to rapidly-solidified lead-free Sn3.5Ag0.7Cu and Cu substrate, investigating influence laser soldering process parameters on growth IMC at solid/liquid interface finding optimum process. To simulate under actual service conditions, joints p=50w, v=140mm/min chosen age 150°C. Scanning electron microscopy (SEM) EDS observe IMCs morphology analyze...

In this paper, a new digital image stabilization (DIS) algorithm base on gray scale projection (PA) and representative point matching (RPM) is proposed to stabilize videos. First, the gray-projection used estimate global motion vectors (GMV). Second, we choose block from center of image, local (LMV) by use RPM algorithm. Finally, combine two groups calculate final vectors. The experimental results show that better than traditional in accuracy, especially for video sequences which contained...

Abstract At present, the domestic applied undergraduate colleges and universities are still in a relatively closed state aspect of physical education teaching informatization. From current situation application informatization our country, there following problems: is basically at end information reform because its lack understanding insufficient attention, means can not shake position traditional mode. The help funds, manpower material resources to place, subjective consciousness teachers...

In this article, we investigate the synchronization problem of continuous-time linear systems with time-varying output couplings. Both bidirectional and unidirectional couplings are studied. former one, each pair connected subsystems can both measure outputs consisting relative information, whereas in case, it is not necessarily case a specific scenario when matrices have common matrix factor considered. The distributed protocols designed convergence conditions resulting system established...

The appearance of IMCs on the Sn/Cu interface plays an important role in joint reliability. Their growth behavior during solidification multiple reflows was investigated. Compressed air employed to blow away residual liquid solder immediately after heating preservation so that morphology corresponding would remain unaltered; and then by compared they with samples experienced cooling, interfacial Cu <sub xmlns:mml="http://www.w3.org/1998/Math/MathML"...

With the advent of lead-free soldering electronic packaging industry, there are growing concerns regarding problems voids in solder joints. Many researchers eager to understand growth, evolution and control factors bubbles. Due restrictions test conditions imposed by high temperature opacity soldering, one cannot directly observe analyze behaviour Moreover, bubble surface reaction effects go hand with each other during soldering; so latter should be interfering pattern former vice-versa. In...

In this paper, we study the synchronization problem of coupled identical electrical oscillators when coupling between is described by matrices. contrast to mechanisms which make use instantaneous and derivative information relative state, sampled data technique utilized tackle case state unavailable. By transforming proposed system into a first-order system, necessary sufficient conditions are established for achieving under an undirected connected graph topology. Finally, simulation results...

In-depth understanding of the definiteness signed Laplacian matrices is critical for analysis cooperative behavior dynamical systems. In this letter, we focus on undirected weighted graphs and prove that matrix has at most <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$p$ </tex-math></inline-formula> negative eigenvalues a graph with edges, corresponding to tree, it exactly eigenvalues. An algebraic...

As soldering process is a high temperature phenomenon accompanied by surface reaction kinetics, the computational model for solder bubble growth can be strong arena describing those aspects which are otherwise difficult to understood through experimental methods. In this paper, of gaseous bubbles in molten tin has been modeled using finite element method. The advection-diffusion and lagrangian mesh adaptation equations have utilized obtain numerical solution concentration flux radius change...

Interfacial intermetallic compound (IMC) is a necessary condition for the reliability of solder connection. In this study, fiber lasers were used to rapidly-solidified lead-free Sn3.5Ag0.7Cu and Cu substrate, investigating influence laser soldering process parameters on growth IMC at solid/liquid interface finding optimum process. To simulate under actual service conditions, joints p=50w, v=140mm/min chosen age 150°C. Scanning electron microscopy (SEM) EDS observe IMCs morphology analyze...

With the advent of lead-free soldering electronic packaging industry, there are growing concerns regarding problems voids in solder joints. Many researchers eager to understand growth, evolution and control factors bubbles. Due restrictions test conditions imposed by high temperature opacity soldering, one cannot directly observe analyze behaviour Moreover, bubble surface reaction effects go hand with each other during soldering; so latter should be interfering pattern former vice-versa. In...

Density functional theory (DFT) calculations were comparatively carried out to reveal the origins of different catalytic performances from phosphine–benzene sulfonate (A, [{P^O}PdMe(L)] (P^O = Κ2-P,O-Ar2PC6H4SO3 with Ar 2-MeOC6H4)) and α-diimine (B, [{N^N}PdMe(Cl)] (N^N (ArN=C(Me)-C(Me)=NAr) 2,6-iPr2C6H3)) palladium complexes toward copolymerization ethylene methyl vinyl sulfone (MVS). Having achieved agreement between experiment, it was found that favorable 2,1-selective insertion MVS into...