Abstract Current fluorescence‐based anti‐counterfeiting strategies primarily encode information onto single 2D planes and underutilize the possibility of encrypting data inside 3D structures to achieve multistage security. Herein, a fluorescent‐hydrogel‐based platform is demonstrated, which extends encryption capability from complex hydrogel origami geometries. The materials are based on perylene‐tetracarboxylic‐acid‐functionalized gelatin/poly(vinyl alcohol) hydrogels, simultaneously show...

As an important model reaction, photocatalytic methanol dissociation on rutile TiO2(110) has drawn much attention, but its reaction mechanism remains elusive. Using DFT+U calculations, we investigate the whole process of into formaldehyde with and without photogenerated holes, aiming to illustrate how hole is involved in dissociation. We find that O–H a heterolytic cleavage likely be thermally driven; presence no promotion barrier enthalpy change. In contrast, subsequent C–H bond follows...

Abstract Urban sound management is required in a variety of fields such as transportation, security, water conservancy and construction, among others. Given the diverse array available noise sensors widespread opportunity to connect these via mobile broadband Internet access, many researchers are eager apply sound‐sensor networks for urban management. Existing sensing typically consist expensive information‐sensing devices, cost maintenance which limit their large‐scale, ubiquitous...

The prediction of chemisorption energy to facilitate the high-throughput screening active catalysts has been long pursued but remains challenging. In particular, amorphous materials usually exhibit superior activity and have drawn ever-increasing attention in heterogeneous catalysis. However, insight into basic structure–property relation far from sufficient owing their disordered structure untracked surface state, let alone effective adsorption energy. Here, employing Ni2P catalyst as an...

The design and synthesis of high-performance levelers remain a major challenge to date. Herein, series phenothiazine (PTZ) derivatives were designed synthesized, they had butterfly conformation, their adsorption capacities easier modulate. To check out the inhibition capabilities among these eight PTZ derivatives, electrochemical measurements theoretical calculations carried out, PTZ-8 indicated strongest derivatives. Besides, galvanostatic also evaluate overall performance levelers. results...

Professional career training for novice employees at elementary levels to help them master necessary working skills is critical both achieving employees' professional success and enhancing the enterprise growth. Besides adopting services from external agencies, companies can actually train more effectively by involving in various internal projects carried out companies. In this paper, we will study "Employee Training" (ET) problem assigning concrete company projects. From perspective,...

Two cholic acid-containing trimers with 1,2,3-triazole groups close to the connecting point ("top") and at end of acid arms ("bottom") were synthesized. These molecules are able form hydrophobic pockets solubilize pyrene other in polar media due facial amphiphilicity acid. Heavy metal ions such as Cu(II) can also be coordinated by groups, shown EPR spectroscopy. Due vicinity pockets, fluorescence is quenched. However, position has a crucial influence on ion complexation. The trimer top found...

Main observation and conclusion As a common electrocatalytic system, Au‐Pt alloy particles are often prepared as Au‐core‐Pt‐shell (Au@Pt) to make full use of platinum. However, Au has strong tendency segregate the outer surface, leading redistribution active sites. Unfortunately, mechanism such reconstruction its effect on activity have not been thoroughly discussed, largely owing complexity in‐situ characterization computational modeling. Herein, by taking 55‐atom 13 Pt 42 core‐shell...

Bicycle-sharing systems (BSSs) offering shared bike usages to the public are becoming more and popular nowadays. In bicycle-sharing systems, people can borrow return bikes at any stations in service region, but free-ride time is usually limited. Therefore, for long-distance trips, individuals need pre-schedule trip route advance change within so no over-time fees will be charged. this paper, we study planning problem when using systems. Given origin destination, aim identifying optimal from...

Anti-tobacco mass media campaigns are designed to influence tobacco users. It has been proved that will produce users' changes in awareness, knowledge, and attitudes, also meaningful behavior change of audience. Anti-smoking television advertising is the most important part campaign. Meanwhile, nowadays, successful online social networks creating new environment, however, little known about relation between conversations anti-tobacco campaigns. This paper aims infer these campaigns, problem...

Abstract Electric vehicles (EVs) have been helping to alleviate the pressure of world energy crisis. However, insulation EV driving motors usually suffers from electrical stress caused by partial discharge (PD) during operation. Aramid paper in stator can reduce incidence degradation. In this context, PD characteristics, topography and chemical group changes under AC repetitive nanosecond impulse voltages were compared. The results illustrated that increase ambient temperature will promote...

The principle and application of single-chip microcomputer is a strong theoretical practical course. By the analysis on traditional teaching mode microcomputer, current problems existing in process obtained. methods are unfavorable to cultivation learner's personality innovative talents. Flipped classroom can transform students' passive learning active learning, so it completely necessary urgent that flipped method apply practice microcomputer. Two different types model based Teaching...

Abstract Facial expression recognition (FER) is significant for daily mental health monitoring because facial expressions reflect an individual's condition. However, it still hard to achieve accurate and convenient FER using wearable devices. Here, a high‐accuracy, self‐powered, intelligent system reported consisting of triboelectric hydrogel sensor network collect signals deep learning model process recognize the signals. The sensors are demonstrated show excellent properties, such as 50%...

To incentivize users' participations and steer their online activities, social networks start to provide users with various kinds of rewards for contributions the sites. The most frequently distributed include account levels, reputation scores, different badges, even material awards like small gifts cash back, etc. Attracted by these rewards, will spend more time using network services. In this paper, we mainly focus on "badges reward systems" but proposed models can be applied other systems...

To incentivize users' participations, online social networks often provide users with various rewards for their contributions to the sites. Attracted by rewards, will spend more time using network services. Specifically, in this paper, we mainly focus on badges reward systems. Badges are small icons attached homepages and profiles denoting achievements. People like accumulate badge reasons, which modeled as values paper. Meanwhile, get badges, people also need exert efforts finish required...

To incentivize users' participations, online social networks often provide users with various rewards for their contributions to the sites. Attracted by rewards, will spend more time using network services. Specifically, in this paper, we mainly focus on "badges reward systems". Badges are small icons attached homepages and profiles denoting achievements. People like accumulate badge reasons, which modeled as "badge values" paper. Meanwhile, get badges, people also need exert efforts finish...

Renewable energy has the characteristics of fluctuation and intermittence due to environmental conditions; output power affects operation grid. To combat these fluctuations, a control strategy for battery energy-storage system using deep-learning adaptive-dynamic algorithm is proposed in this work. First, power-fluctuation rate feedback used suppress from renewable source. Second, by introducing an based on deep belief network, charging discharging with secondary regulation achieved....

Anti-tobacco mass media campaigns are designed to influence tobacco users. It has been proved will produce their changes in awareness, knowledge, and attitudes, also meaningful behavior change of audience. Anti-smoking television advertising is the most important part campaign. Meanwhile nowadays successful online social networks creating new environment, however little known about relation between conversations anti-tobacco campaigns. This paper aims infer these campaigns, problem formally...

The study of band topology in photonic crystals was primarily focused on near-field effects, including edge states and high order corner states. However, this work investigated the polarization distribution radiated fields for crystal slabs to get their far-field properties topology. We introduced a new topological invariant: winding number around Brillouin zone boundary confirmed robust correspondence between it Chern energy bands from perspective symmetry, which can be used analyze process...